another try

- delete unused files on remote
- show a project number in doxygen

.circleci/config.yml

@@ -4,6 +4,9 @@ executors:
     docker:
       - image: filecoin/rust:latest
     working_directory: /mnt/crate
+  doxygen:
+    docker:
+      - image: hrektts/doxygen
 
 restore-workspace: &restore-workspace
   attach_workspace:
@@ -12,7 +15,7 @@ restore-workspace: &restore-workspace
 restore-cache: &restore-cache
   restore_cache:
     keys:
-      - cargo-v1-{{ checksum "rust-toolchain" }}-{{ checksum "Cargo.toml" }}-{{ checksum "Cargo.lock" }}-{{ arch }}
+      - cargo-v3-{{ checksum "rust-toolchain" }}-{{ checksum "Cargo.toml" }}-{{ checksum "Cargo.lock" }}-{{ arch }}
       - repo-source-{{ .Branch }}-{{ .Revision }}
 
 commands:
@@ -23,20 +26,9 @@ commands:
     steps:
       - *restore-workspace
       - *restore-cache
-      - setup_remote_docker:
-          docker_layer_caching: true
-      # TODO: move into image
-      - run:
-          name: Install Docker client
-          command: |
-            set -x
-            VER="18.09.2"
-            curl -L -o /tmp/docker-$VER.tgz https://download.docker.com/linux/static/stable/x86_64/docker-$VER.tgz
-            tar -xz -C /tmp -f /tmp/docker-$VER.tgz
-            mv /tmp/docker/* /usr/bin
       - run:
           name: Test (<< parameters.target >>)
-          command: TARGET=<< parameters.target >> ci/run.sh
+          command: TARGET=<< parameters.target >> ci_scripts/run-rust-test.sh
           no_output_timeout: 15m
 
 jobs:
@@ -44,30 +36,24 @@ jobs:
     executor: default
     steps:
       - checkout
-      - run:
-          name: Update submodules
-          command: git submodule update --init --recursive
-      - run:
-          name: Calculate dependencies
-          command: cargo generate-lockfile
       - restore_cache:
           keys:
-            - cargo-v1-{{ checksum "rust-toolchain" }}-{{ checksum "Cargo.toml" }}-{{ checksum "Cargo.lock" }}-{{ arch }}
+            - cargo-v3-{{ checksum "rust-toolchain" }}-{{ checksum "Cargo.toml" }}-{{ checksum "Cargo.lock" }}-{{ arch }}
       - run: rustup install $(cat rust-toolchain)
       - run: rustup default $(cat rust-toolchain)
       - run: rustup component add --toolchain $(cat rust-toolchain) rustfmt
       - run: rustup component add --toolchain $(cat rust-toolchain) clippy-preview
-      - run: cargo update
       - run: cargo fetch
       - run: rustc +stable --version
       - run: rustc +$(cat rust-toolchain) --version
-      - run: rm -rf .git
+      # make sure this git repo doesn't grow too big
+      - run: git gc
       - persist_to_workspace:
           root: /mnt
           paths:
             - crate
       - save_cache:
-          key: cargo-v1-{{ checksum "rust-toolchain" }}-{{ checksum "Cargo.toml" }}-{{ checksum "Cargo.lock" }}-{{ arch }}
+          key: cargo-v3-{{ checksum "rust-toolchain" }}-{{ checksum "Cargo.toml" }}-{{ checksum "Cargo.lock" }}-{{ arch }}
           paths:
             - "~/.cargo"
             - "~/.rustup"
@@ -98,11 +84,10 @@ jobs:
             curl https://sh.rustup.rs -sSf | sh -s -- -y
       - run: rustup install $(cat rust-toolchain)
       - run: rustup default $(cat rust-toolchain)
-      - run: cargo update
       - run: cargo fetch
       - run:
           name: Test
-          command: TARGET=x86_64-apple-darwin ci/run.sh
+          command: TARGET=x86_64-apple-darwin ci_scripts/run-rust-test.sh
 
   test_x86_64-unknown-linux-gnu:
     executor: default
@@ -123,27 +108,25 @@ jobs:
           target: "aarch64-linux-android"
 
 
-  build_test_docs_wheel:
-    machine: True
+  build_doxygen:
+    executor: doxygen
     steps:
       - checkout
-      # - run: docker pull deltachat/doxygen
-      - run: docker pull deltachat/coredeps
-      - run:
-          name: build docs, run tests and build wheels
-          command: ci_scripts/ci_run.sh
-          environment:
-            TESTS: 1
-            DOCS: 1
-
-      - run:
-           name: copying docs and wheels to workspace
-           command: |
-             mkdir -p workspace/python
-             # cp -av docs workspace/c-docs
-             cp -av python/.docker-tox/wheelhouse workspace/
-             cp -av python/doc/_build/ workspace/py-docs
+      - run: bash ci_scripts/run-doxygen.sh
+      - run: mkdir -p workspace/c-docs
+      - run: cp -av deltachat-ffi/{html,xml} workspace/c-docs/
+      - persist_to_workspace:
+          root: workspace
+          paths:
+            - c-docs
 
+  remote_python_packaging:
+    machine: true
+    steps:
+      - checkout
+      # the following commands on success produces
+      # workspace/{wheelhouse,py-docs} as artefact directories
+      - run: bash ci_scripts/remote_python_packaging.sh 
       - persist_to_workspace:
           root: workspace
           paths:
@@ -151,15 +134,28 @@ jobs:
             - py-docs
             - wheelhouse
 
+  remote_tests_rust:
+    machine: true
+    steps:
+      - checkout
+      - run: ci_scripts/remote_tests_rust.sh
+    
+  remote_tests_python:
+    machine: true
+    steps:
+      - checkout
+      - run: ci_scripts/remote_tests_python.sh
+
   upload_docs_wheels:
     machine: true
     steps:
       - checkout
       - attach_workspace:
           at: workspace
+      - run: pyenv versions
       - run: pyenv global 3.5.2
       - run: ls -laR workspace
-      - run: ci_scripts/ci_upload.sh workspace/py-docs workspace/wheelhouse
+      - run: ci_scripts/ci_upload.sh workspace/py-docs workspace/wheelhouse workspace/c-docs
 
   clippy:
     executor: default
@@ -168,7 +164,7 @@ jobs:
       - *restore-cache
       - run:
           name: Run cargo clippy
-          command: cargo clippy --all
+          command: cargo clippy 
 
 
 workflows:
@@ -176,23 +172,49 @@ workflows:
 
   test:
     jobs:
-      - build_test_docs_wheel
+      # - cargo_fetch
+
+      - remote_tests_rust:
+          filters:
+            tags:
+              only: /.*/
+
+      - remote_tests_python:
+          filters:
+            tags:
+              only: /.*/
+
+      - remote_python_packaging:
+          requires: 
+             - remote_tests_python
+             - remote_tests_rust 
+          filters:
+            tags:
+              only: /.*/
+
       - upload_docs_wheels:
           requires:
-            - build_test_docs_wheel
-      - cargo_fetch
-      - rustfmt:
-          requires:
-            - cargo_fetch
+             - remote_python_packaging
+             - build_doxygen
+          filters:
+            tags:
+              only: /.*/
+      # - rustfmt:
+      #     requires:
+      #       - cargo_fetch
+      # - clippy:
+      #     requires:
+      #      - cargo_fetch
 
-      - clippy:
-          requires:
-            - cargo_fetch
+      - build_doxygen:
+          filters:
+            tags:
+              only: /.*/
 
       # Linux Desktop 64bit
-      - test_x86_64-unknown-linux-gnu:
-          requires:
-            - cargo_fetch
+      # - test_x86_64-unknown-linux-gnu:
+      #     requires:
+      #       - cargo_fetch
 
       # Linux Desktop 32bit
       # - test_i686-unknown-linux-gnu:

.github/workflows/code-quality.yml

@@ -0,0 +1,47 @@
+on: push
+name: Code Quality
+jobs:
+
+  check:
+    name: Check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: nightly-2019-11-06
+          override: true
+      - uses: actions-rs/cargo@v1
+        with:
+          command: check
+
+  fmt:
+    name: Rustfmt
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: nightly-2019-11-06
+          override: true
+      - run: rustup component add rustfmt
+      - uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+
+  run_clippy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions-rs/toolchain@v1
+        with:
+            toolchain: nightly-2019-11-06
+            components: clippy
+            override: true
+      - uses: actions-rs/clippy-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          args: --all-features

.gitignore

@@ -16,9 +16,12 @@ python/.tox
 *.egg-info
 __pycache__
 python/src/deltachat/capi*.so
+python/.venv/
 
 python/liveconfig*
 
 # ignore doxgen generated files
 deltachat-ffi/html
 deltachat-ffi/xml
+
+.rsynclist

CHANGELOG.md

@@ -0,0 +1,336 @@
+# Changelog 
+
+## 1.0.0-beta.23
+
+- #1197 fix imap-deletion of messages 
+
+- #1171 Combine multiple MDNs into a single mail, reducing traffic 
+
+- #1155 fix to not send out gossip always, reducing traffic
+
+- #1160 fix reply-to-encrypted determination 
+
+- #1182 Add "Auto-Submitted: auto-replied" header to MDNs
+
+- #1194 produce python wheels again, fix c/py.delta.chat
+  master-deployment 
+
+- rust-level housekeeping and improvements #1161 #1186 #1185 #1190 #1194 #1199 #1191 #1190 #1184 and more
+
+- #1063 clarify licensing 
+
+- #1147 use mailparse 0.10.2 
+
+
+## 1.0.0-beta.22
+
+- #1095 normalize email lineends to CRLF
+
+- #1095 enable link-time-optimization, saves eg. on android 11 mb
+
+- #1099 fix import regarding devicechats
+
+- #1092 improve logging
+
+- #1096 #1097 #1094 #1090 #1091 internal cleanups
+
+## 1.0.0-beta.21
+
+- #1078 #1082 ensure RFC compliance by producing 78 column lines for
+  encoded attachments. 
+
+- #1080 don't recreate and thus break group membership if an unknown 
+  sender (or mailer-daemon) sends a message referencing the group chat 
+
+- #1081 #1079 some internal cleanups 
+
+- update imap-proto dependency, to fix yandex/oauth 
+
+## 1.0.0-beta.20
+
+- #1074 fix OAUTH2/gmail
+- #1072 fix group members not appearing in contact list
+- #1071 never block interrupt_idle (thus hopefully also not on maybe_network())
+- #1069 reduce smtp-timeout to 30 seconds
+- #1066 #1065 avoid unwrap in dehtml, make literals more readable
+
+## 1.0.0-beta.19
+
+- #1058 timeout smtp-send if it doesn't complete in 15 minutes 
+
+- #1059 trim down logging
+
+## 1.0.0-beta.18
+
+- #1056 avoid panicking when we couldn't read imap-server's greeting
+  message 
+
+- #1055 avoid panicking when we don't have a selected folder
+
+- #1052 #1049 #1051 improve logging to add thread-id/name and
+  file/lineno to each info/warn message.
+
+- #1050 allow python bindings to initialize Account with "os_name".
+
+
+## 1.0.0-beta.17
+
+- #1044 implement avatar recoding to 192x192 in core to keep file sizes small. 
+
+- #1024 fix #1021 SQL/injection malformed Chat-Group-Name breakage
+
+- #1036 fix smtp crash by pulling in a fixed async-smtp 
+
+- #1039 fix read-receipts appearing as normal messages when you change
+  MDN settings 
+
+- #1040 do not panic on SystemTimeDifference
+
+- #1043 avoid potential crashes in malformed From/Chat-Disposition... headers  
+
+- #1045 #1041 #1038 #1035 #1034 #1029 #1025 various cleanups and doc
+  improvments 
+
+## 1.0.0-beta.16
+
+- alleviate login problems with providers which only
+  support RSA1024 keys by switching back from Rustls 
+  to native-tls, by using the new async-email/async-native-tls 
+  crate from @dignifiedquire. thanks @link2xt. 
+
+- introduce per-contact profile images to send out 
+  own profile image heuristically, and fix sending
+  out of profile images in "in-prepare" groups. 
+  this also extends the Chat-spec that is maintained
+  in core to specify Chat-Group-Image and Chat-Group-Avatar
+  headers. thanks @r10s and @hpk42.
+
+- fix merging of protected headers from the encrypted
+  to the unencrypted parts, now not happening recursively
+  anymore.  thanks @hpk and @r10s
+
+- fix/optimize autocrypt gossip headers to only get 
+  sent when there are more than 2 people in a chat. 
+  thanks @link2xt
+
+- fix displayname to use the authenticated name 
+  when available (displayname as coming from contacts 
+  themselves). thanks @simon-laux
+
+- introduce preliminary support for offline autoconfig 
+  for nauta provider. thanks @hpk42 @r10s
+
+## 1.0.0-beta.15
+
+- fix #994 attachment appeared doubled in chats (and where actually
+  downloaded after smtp-send). @hpk42
+
+## 1.0.0-beta.14
+
+- fix packaging issue with our rust-email fork, now we are tracking
+  master again there. hpk42
+
+## 1.0.0-beta.13
+
+- fix #976 -- unicode-issues in display-name of email addresses. @hpk42
+
+- fix #985 group add/remove member bugs resulting in broken groups.  @hpk42
+
+- fix hanging IMAP connections -- we now detect with a 15second timeout
+  if we cannot terminate the IDLE IMAP protocol. @hpk42 @link2xt
+
+- fix incoming multipart/mixed containing html, to show up as
+  attachments again.  Fixes usage for simplebot which sends html
+  files for users to interact with the bot. @adbenitez @hpk42 
+
+- refinements to internal autocrypt-handling code, do not send
+  prefer-encrypt=nopreference as it is the default if no attribute
+  is present.  @linkxt 
+
+- simplify, modularize and rustify several parts 
+  of dc-core (general WIP). @link2xt @flub @hpk42 @r10s
+
+- use async-email/async-smtp to handle SMTP connections, might
+  fix connection/reconnection issues. @link2xt 
+
+- more tests and refinements for dealing with blobstorage @flub @hpk42 
+
+- use a dedicated build-server for CI testing of core PRs
+
+
+## 1.0.0-beta.12
+
+- fix python bindings to use core for copying attachments to blobdir
+  and fix core to actually do it. @hpk42
+
+## 1.0.0-beta.11
+
+- trigger reconnect more often on imap error states.  Should fix an 
+  issue observed when trying to empty a folder.  @hpk42
+
+- un-split qr tests: we fixed qr-securejoin protocol flakyness 
+  last weeks. @hpk42
+
+## 1.0.0-beta.10
+
+- fix grpid-determination from in-reply-to and references headers. @hpk42
+
+- only send Autocrypt-gossip headers on encrypted messages. @dignifiedquire
+
+- fix reply-to-encrypted message to also be encrypted. @hpk42
+
+- remove last unsafe code from dc_receive_imf :) @hpk42
+
+- add experimental new dc_chat_get_info_json FFI/API so that desktop devs
+  can play with using it. @jikstra
+
+- fix encoding of subjects and attachment-filenames @hpk42
+  @dignifiedquire . 
+
+## 1.0.0-beta.9
+
+- historic: we now use the mailparse crate and lettre-email to generate mime
+  messages.  This got rid of mmime completely, the C2rust generated port of the libetpan 
+  mime-parse -- IOW 22KLocs of cumbersome code removed! see 
+  https://github.com/deltachat/deltachat-core-rust/pull/904#issuecomment-561163330
+  many thanks @dignifiedquire for making everybody's life easier 
+  and @jonhoo (from rust-imap fame) for suggesting to use the mailparse crate :) 
+
+- lots of improvements and better error handling in many rust modules 
+  thanks @link2xt @flub @r10s, @hpk42 and @dignifiedquire 
+
+- @r10s introduced a new device chat which has an initial
+  welcome message.  See 
+  https://c.delta.chat/classdc__context__t.html#a1a2aad98bd23c1d21ee42374e241f389
+  for the main new FFI-API.
+
+- fix moving self-sent messages, thanks @r10s, @flub, @hpk42
+
+- fix flakyness/sometimes-failing verified/join-protocols, 
+  thanks @flub, @r10s, @hpk42
+
+- fix reply-to-encrypted message to keep encryption 
+
+- new DC_EVENT_SECUREJOIN_MEMBER_ADDED event 
+
+- many little fixes and rustifications (@link2xt, @flub, @hpk42)
+
+
+## 1.0.0-beta.8
+
+- now uses async-email/async-imap as the new base 
+  which makes imap-idle interruptible and thus fixes
+  several issues around the imap thread being in zombie state . 
+  thanks @dignifiedquire, @hpk42 and @link2xt. 
+
+- fixes imap-protocol parsing bugs that lead to infinitely
+  repeated crashing while trying to receive messages with
+  a subjec that contained non-utf8. thanks @link2xt
+
+- fixed logic to find encryption subkey -- previously 
+  delta chat would use the primary key for encryption
+  (which works with RSA but not ECC). thanks @link2xt
+
+- introduce a new device chat where core and UIs can 
+  add "device" messages.  Android uses it for an initial
+  welcome message. thanks @r10s
+
+- fix time smearing (when two message are virtually send
+  in the same second, there would be misbehaviour because
+  we didn't persist smeared time). thanks @r10s
+
+- fix double-dotted extensions like .html.zip or .tar.gz  
+  to not mangle them when creating blobfiles.  thanks @flub
+
+- fix backup/exports where the wrong sql file would be modified,
+  leading to problems when exporting twice.  thanks @hpk42
+
+- several other little fixes and improvements 
+
+
+## 1.0.0-beta.7
+
+- fix location-streaming #782
+
+- fix display of messages that could not be decrypted #785
+ 
+- fix smtp MAILER-DAEMON bug #786 
+
+- fix a logging of durations #783
+
+- add more error logging #779
+
+- do not panic on some bad utf-8 mime #776
+
+## 1.0.0-beta.6
+
+- fix chatlist.get_msg_id to return id, instead of wrongly erroring
+
+## 1.0.0-beta.5
+
+- fix dc_get_msg() to return empty messages when asked for special ones 
+
+## 1.0.0-beta.4
+
+- fix more than one sending of autocrypt setup message
+
+- fix recognition of mailto-address-qr-codes, add tests
+
+- tune down error to warning when adding self to chat
+
+## 1.0.0-beta.3
+
+- add back `dc_empty_server()` #682
+
+- if `show_emails` is set to `DC_SHOW_EMAILS_ALL`,
+  email-based contact requests are added to the chatlist directly
+
+- fix IMAP hangs #717 and cleanups
+
+- several rPGP fixes
+
+- code streamlining and rustifications
+
+
+## 1.0.0-beta.2
+
+- https://c.delta.chat docs are now regenerated again through our CI 
+
+- several rPGP cleanups, security fixes and better multi-platform support 
+
+- reconnect on io errors and broken pipes (imap)
+
+- probe SMTP with real connection not just setup
+
+- various imap/smtp related fixes
+
+- use to_string_lossy in most places instead of relying on valid utf-8
+  encodings
+ 
+- rework, rustify and test autoconfig-reading and parsing 
+
+- some rustifications/boolifications of c-ints 
+
+
+## 1.0.0-beta.1 
+
+- first beta of the Delta Chat Rust core library. many fixes of crashes
+  and other issues compared to 1.0.0-alpha.5.
+
+- Most code is now "rustified" and does not do manual memory allocation anymore. 
+
+- The `DC_EVENT_GET_STRING` event is not used anymore, removing the last
+  event where the core requested a return value from the event callback. 
+
+  Please now use `dc_set_stock_translation()` API for core messages
+  to be properly localized. 
+
+- Deltachat FFI docs are automatically generated and available here: 
+  https://c.delta.chat 
+
+- New events ImapMessageMoved and ImapMessageDeleted
+
+For a full list of changes, please see our closed Pull Requests: 
+
+https://github.com/deltachat/deltachat-core-rust/pulls?q=is%3Apr+is%3Aclosed
+

Cargo.toml

@@ -1,27 +1,35 @@
 [package]
 name = "deltachat"
-version = "1.0.0-alpha.4"
-authors = ["dignifiedquire <dignifiedquire@gmail.com>"]
+version = "1.0.0-beta.23"
+authors = ["Delta Chat Developers (ML) <delta@codespeak.net>"]
 edition = "2018"
-license = "MPL"
+license = "MPL-2.0"
+
+[profile.release]
+lto = true
 
 [dependencies]
 deltachat_derive = { path = "./deltachat_derive" }
+
 libc = "0.2.51"
-pgp = { version = "0.2", default-features = false }
-hex = "0.3.2"
+pgp = { version = "0.4.0", default-features = false }
+hex = "0.4.0"
 sha2 = "0.8.0"
-rand = "0.6.5"
-phf = { git = "https://github.com/sfackler/rust-phf", rev = "0d00821", features = ["macros"] }
-smallvec = "0.6.9"
-reqwest = "0.9.15"
-num-derive = "0.2.5"
+rand = "0.7.0"
+smallvec = "1.0.0"
+reqwest = { version = "0.10.0", features = ["blocking", "json"] }
+num-derive = "0.3.0"
 num-traits = "0.2.6"
-native-tls = "0.2.3"
-lettre = "0.9.0"
-imap = { git = "https://github.com/jonhoo/rust-imap", rev = "281d2eb8ab50dc656ceff2ae749ca5045f334e15" }
-mmime = { git = "https://github.com/dignifiedquire/mmime", rev = "bccd2c2" }
-base64 = "0.10"
+async-smtp = { git = "https://github.com/async-email/async-smtp" }
+email = { git = "https://github.com/deltachat/rust-email", branch = "master" }
+lettre_email = { git = "https://github.com/deltachat/lettre", branch = "master" }
+
+# XXX newer commits of async-imap lead to import-export tests hanging
+async-imap = { git = "https://github.com/async-email/async-imap", branch = "dcc-stable" }
+
+async-native-tls = "0.1.1"
+async-std = { version = "1.0", features = ["unstable"] }
+base64 = "0.11"
 charset = "0.1"
 percent-encoding = "2.0"
 serde = { version = "1.0", features = ["derive"] }
@@ -29,25 +37,31 @@ serde_json = "1.0"
 chrono = "0.4.6"
 failure = "0.1.5"
 failure_derive = "0.1.5"
+indexmap = "1.3.0"
 # TODO: make optional
 rustyline = "4.1.0"
 lazy_static = "1.4.0"
 regex = "1.1.6"
-rusqlite = { version = "0.20", features = ["bundled"] }
-r2d2_sqlite = "0.12.0"
+rusqlite = { version = "0.21", features = ["bundled"] }
+r2d2_sqlite = "0.13.0"
 r2d2 = "0.8.5"
-strum = "0.15.0"
-strum_macros = "0.15.0"
+strum = "0.16.0"
+strum_macros = "0.16.0"
 thread-local-object = "0.1.0"
 backtrace = "0.3.33"
 byteorder = "1.3.1"
 itertools = "0.8.0"
 image-meta = "0.1.0"
-quick-xml = "0.15.0"
+quick-xml = "0.17.1"
 escaper = "0.1.0"
 bitflags = "1.1.0"
-jetscii = "0.4.4"
 debug_stub_derive = "0.3.0"
+sanitize-filename = "0.2.1"
+stop-token = { version = "0.1.1", features = ["unstable"] }
+mailparse = "0.10.2"
+encoded-words = { git = "https://github.com/async-email/encoded-words", branch="master" }
+native-tls = "0.2.3"
+image = { version = "0.22.4", default-features=false, features = ["gif_codec", "jpeg", "ico", "png_codec", "pnm", "webp", "bmp"] }
 
 [dev-dependencies]
 tempfile = "3.0"
@@ -72,6 +86,6 @@ path = "examples/repl/main.rs"
 
 [features]
 default = ["nightly", "ringbuf"]
-vendored = ["native-tls/vendored", "reqwest/default-tls-vendored"]
+vendored = ["native-tls/vendored", "reqwest/native-tls-vendored"]
 nightly = ["pgp/nightly"]
 ringbuf = ["pgp/ringbuf"]

LICENSE

@@ -2,9 +2,6 @@ The files in this directory and under its subdirectories
 are (c) 2019 by Bjoern Petersen and contributors and released under the
 Mozilla Public License Version 2.0, see below for a copy.
 
-NOTE that the files in the "libs" directory are copyrighted by third parties
-and come with their own respective licenses.
-
 Mozilla Public License Version 2.0
 ==================================
 

README.md

@@ -1,11 +1,9 @@
 # Delta Chat Rust
 
-> Project porting deltachat-core to rust
+> Deltachat-core written in Rust 
 
 [![CircleCI build status][circle-shield]][circle] [![Appveyor build status][appveyor-shield]][appveyor]
 
-Current commit on deltachat/deltachat-core: `12ef73c8e76185f9b78e844ea673025f56a959ab`.
-
 ## Installing Rust and Cargo
 
 To download and install the official compiler for the Rust programming language, and the Cargo package manager, run the command in your user environment:
@@ -16,7 +14,7 @@ curl https://sh.rustup.rs -sSf | sh
 
 ## Using the CLI client
 
-Compile and run Delta Chat Core using `cargo`:
+Compile and run Delta Chat Core command line utility, using `cargo`:
 
 ```
 cargo run --example repl -- /path/to/db
@@ -89,6 +87,15 @@ $ cargo test --all
 $ cargo build -p deltachat_ffi --release
 ```
 
+## Debugging environment variables 
+
+- `DCC_IMAP_DEBUG`: if set IMAP protocol commands and responses will be
+  printed
+
+- `DCC_MIME_DEBUG`: if set outgoing and incoming message will be printed 
+
+
+
 ### Expensive tests
 
 Some tests are expensive and marked with `#[ignore]`, to run these
@@ -107,3 +114,22 @@ $ cargo test -- --ignored
 [circle]: https://circleci.com/gh/deltachat/deltachat-core-rust/
 [appveyor-shield]: https://ci.appveyor.com/api/projects/status/lqpegel3ld4ipxj8/branch/master?style=flat-square
 [appveyor]: https://ci.appveyor.com/project/dignifiedquire/deltachat-core-rust/branch/master
+
+## Language bindings and frontend projects
+
+Language bindings are available for:
+
+- [C](https://c.delta.chat)
+- [Node.js](https://www.npmjs.com/package/deltachat-node)
+- [Python](https://py.delta.chat)
+- [Go](https://github.com/hugot/go-deltachat/)
+- **Java** and **Swift** (contained in the Android/iOS repos)
+
+The following "frontend" projects make use of the Rust-library
+or its language bindings:
+
+- [Android](https://github.com/deltachat/deltachat-android)
+- [iOS](https://github.com/deltachat/deltachat-ios)
+- [Desktop](https://github.com/deltachat/deltachat-desktop)
+- [Pidgin](https://code.ur.gs/lupine/purple-plugin-delta/)
+- several **Bots**

Xargo.toml

@@ -1,6 +0,0 @@
-[dependencies.std]
-features = ["panic-unwind"]
-
-# if using `cargo test`
-[dependencies.test]
-stage = 1

appveyor.yml

@@ -8,12 +8,11 @@ install:
   - set PATH=%PATH%;%USERPROFILE%\.cargo\bin
   - rustc -vV
   - cargo -vV
-  - cargo update
 
 build: false
 
 test_script:
-  - cargo test --release
+  - cargo test --release --all
 
 cache:
   - target

assets/icon-device.svg

@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   inkscape:export-ydpi="409.60001"
+   inkscape:export-xdpi="409.60001"
+   inkscape:export-filename="/Users/bpetersen/projects/deltachat-core-rust/assets/icon-device.png"
+   version="1.0"
+   width="60"
+   height="60"
+   viewBox="0 0 45 45"
+   preserveAspectRatio="xMidYMid meet"
+   id="svg4344"
+   sodipodi:docname="icon-device.svg"
+   inkscape:version="1.0beta1 (32d4812, 2019-09-19)">
+  <defs
+     id="defs4348" />
+  <sodipodi:namedview
+     inkscape:snap-global="false"
+     pagecolor="#ffffff"
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+     guidetolerance="10"
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+     inkscape:window-width="1600"
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+     inkscape:window-maximized="0"
+     inkscape:current-layer="svg4344" />
+  <metadata
+     id="metadata4336">
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+<rdf:RDF>
+  <cc:Work
+     rdf:about="">
+    <dc:format>image/svg+xml</dc:format>
+    <dc:type
+       rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+    <dc:title />
+  </cc:Work>
+</rdf:RDF>
+</metadata>
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+     id="g4342">
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+       id="path4338"
+       inkscape:connector-curvature="0" />
+    <path
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+       id="path4340"
+       inkscape:connector-curvature="0" />
+  </g>
+</svg>

assets/icon-saved-messages.svg

@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   inkscape:export-ydpi="409.60001"
+   inkscape:export-xdpi="409.60001"
+   inkscape:export-filename="/home/kerle/test-icon.png"
+   version="1.0"
+   width="60"
+   height="60"
+   viewBox="0 0 45 45"
+   preserveAspectRatio="xMidYMid meet"
+   id="svg4344"
+   sodipodi:docname="icon-saved-messages.svg"
+   inkscape:version="1.0beta1 (32d4812, 2019-09-19)">
+  <defs
+     id="defs4348" />
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     inkscape:document-rotation="0"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1395"
+     inkscape:window-height="855"
+     id="namedview4346"
+     showgrid="false"
+     units="px"
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+     inkscape:current-layer="svg4344"
+     inkscape:lockguides="false" />
+  <metadata
+     id="metadata4336">
+Created by potrace 1.15, written by Peter Selinger 2001-2017
+<rdf:RDF>
+  <cc:Work
+     rdf:about="">
+    <dc:format>image/svg+xml</dc:format>
+    <dc:type
+       rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+    <dc:title />
+  </cc:Work>
+</rdf:RDF>
+</metadata>
+  <rect
+     y="0"
+     x="0"
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+  <path
+     id="rect846"
+     style="fill:#ffffff;stroke-width:0.58409804"
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+     inkscape:connector-curvature="0" />
+</svg>

ci_scripts/README.md

@@ -1,52 +1,46 @@
-
 # Continuous Integration Scripts for Delta Chat
 
-Continuous Integration is run through CircleCI
-but is largely independent of it. 
+Continuous Integration, run through CircleCI and an own build machine.
+
+## Description of scripts 
+
+- `../.circleci/config.yml` describing the build jobs that are run
+  by Circle-CI
+
+- `remote_tests_python.sh` rsyncs to a build machine and runs
+  `run-python-test.sh` remotely on the build machine. 
+
+- `remote_tests_rust.sh` rsyncs to the build machine and runs
+  `run-rust-test.sh` remotely on the build machine. 
+
+- `doxygen/Dockerfile` specifies an image that contains
+  the doxygen tool which is used by `run-doxygen.sh` 
+  to generate C-docs which are then uploaded 
+  via `ci_upload.sh` to `https://c.delta.chat/_unofficial_unreleased_docs/<BRANCH>`
+  (and the master branch is linked to https://c.delta.chat proper). 
 
 
-## Generating docker containers for performing build step work 
+## Triggering runs on the build machine locally (fast!)
 
-All tests, docs and wheel building is run in docker containers:
+There is experimental support for triggering a remote Python or Rust test run 
+from your local checkout/branch. You will need to be authorized to login to 
+the build machine (ask your friendly sysadmin on #deltachat freenode) to type::
 
-- **coredeps/Dockerfile** specifies an image that contains all 
-  of Delta Chat's core dependencies as linkable libraries. 
-  It also serves to run python tests and build wheels 
-  (binary packages for Python). 
+    ci_scripts/manual_remote_tests.sh rust
+    ci_scripts/manual_remote_tests.sh python
 
-- **doxygen/Dockerfile** specifies an image that contains
-  the doxygen tool which is used to generate C-docs. 
+This will **rsync** your current checkout to the remote build machine 
+(no need to commit before) and then run either rust or python tests. 
 
-To run tests locally you can pull existing images from "docker.io",
-the hub for sharing Docker images::
+# Outdated files (for later re-use)
 
-    docker pull deltachat/coredeps
-    docker pull deltachat/doxygen 
+`coredeps/Dockerfile` specifies an image that contains all 
+of Delta Chat's core dependencies. It used to run 
+python tests and build wheels (binary packages for Python)
 
-or you can build the docker images yourself locally
+You can build the docker images yourself locally
 to avoid the relatively large download:: 
  
     cd ci_scripts  # where all CI things are 
     docker build -t deltachat/coredeps docker-coredeps
     docker build -t deltachat/doxygen docker-doxygen 
-
-## ci_run.sh (main entrypoint called by circle-ci)
-
-Once you have the docker images available 
-you can run python testing, documentation generation 
-and building binary wheels:: 
-
-    sh DOCS=1 TESTS=1 ci_scripts/ci_run.sh 
-    
-## ci_upload.sh (uploading artifacts on success) 
-
-- python docs to `https://py.delta.chat/_unofficial_unreleased_docs/<BRANCH>`
-
-- doxygen docs to `https://c.delta.chat/_unofficial_unreleased_docs/<BRANCH>`
-
-- python wheels to `https://m.devpi.net/dc/<BRANCH>`
-  so that you install fully self-contained wheels like this:
-  `pip install -U -i https://m.devpi.net/dc/<BRANCH> deltachat`
-
-
-

ci_scripts/ci_run.sh

@@ -1,22 +0,0 @@
-# perform CI jobs on PRs and after merges to master.
-# triggered from .circleci/config.yml
-
-set -e -x
-
-export BRANCH=${CIRCLE_BRANCH:-test7}
-    
-# run doxygen on c-source (needed by later doc-generation steps).
-# XXX modifies the host filesystem docs/xml and docs/html directories
-# XXX which you can then only remove with sudo as they belong to root
-
-# XXX we don't do doxygen doc generation with Rust anymore, needs to be
-# substituted with rust-docs 
-#if [ -n "$DOCS" ] ; then 
-#    docker run --rm -it -v $PWD:/mnt -w /mnt/docs deltachat/doxygen doxygen
-#fi
-
-# run everything else inside docker (TESTS, DOCS, WHEELS) 
-docker run -e DCC_PY_LIVECONFIG -e BRANCH -e TESTS -e DOCS \
-           --rm -it -v $(pwd):/mnt -w /mnt \
-           deltachat/coredeps ci_scripts/run_all.sh
-

ci_scripts/ci_upload.sh

@@ -7,9 +7,9 @@ fi
 
 set -xe
 
-#DOXYDOCDIR=${1:?directory where doxygen docs to be found}
 PYDOCDIR=${1:?directory with python docs}
 WHEELHOUSEDIR=${2:?directory with pre-built wheels}
+DOXYDOCDIR=${3:?directory where doxygen docs to be found}
 
 export BRANCH=${CIRCLE_BRANCH:?specify branch for uploading purposes}
 
@@ -17,15 +17,18 @@ export BRANCH=${CIRCLE_BRANCH:?specify branch for uploading purposes}
 # python docs to py.delta.chat
 ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null delta@py.delta.chat mkdir -p build/${BRANCH}
 rsync -avz \
+  --delete \
   -e "ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null" \
   "$PYDOCDIR/html/" \
   delta@py.delta.chat:build/${BRANCH}
 
 # C docs to c.delta.chat
-#rsync -avz \
-#  -e "ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null" \
-#  "$DOXYDOCDIR/html/" \
-#  delta@py.delta.chat:build-c/${BRANCH}
+ssh -o BatchMode=yes -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null delta@c.delta.chat mkdir -p build-c/${BRANCH}
+rsync -avz \
+  --delete \
+  -e "ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null" \
+  "$DOXYDOCDIR/html/" \
+  delta@c.delta.chat:build-c/${BRANCH}
 
 echo -----------------------
 echo upload wheels 
@@ -34,6 +37,7 @@ echo -----------------------
 # Bundle external shared libraries into the wheels
 pushd $WHEELHOUSEDIR
 
+pip3 install -U pip
 pip3 install devpi-client
 devpi use https://m.devpi.net
 devpi login dc --password $DEVPI_LOGIN
@@ -45,6 +49,9 @@ devpi use dc/$N_BRANCH || {
     devpi use dc/$N_BRANCH
 }
 devpi index $N_BRANCH bases=/root/pypi
-devpi upload deltachat*.whl
+devpi upload deltachat*
 
 popd
+
+# remove devpi non-master dc indices if thy are too old
+python ci_scripts/cleanup_devpi_indices.py

ci_scripts/cleanup_devpi_indices.py

@@ -0,0 +1,69 @@
+"""
+Remove old "dc" indices except for master which always stays.
+
+"""
+from requests import Session
+import datetime
+import sys
+import subprocess
+
+MAXDAYS=7
+
+session = Session()
+session.headers["Accept"] = "application/json"
+
+
+def get_indexes(baseurl, username):
+    response = session.get(baseurl + username)
+    assert response.status_code == 200
+    result = response.json()["result"]
+    return result["indexes"]
+
+
+def get_projectnames(baseurl, username, indexname):
+    response = session.get(baseurl + username + "/" + indexname)
+    assert response.status_code == 200
+    result = response.json()["result"]
+    return result["projects"]
+
+
+def get_release_dates(baseurl, username, indexname, projectname):
+    response = session.get(baseurl + username + "/" + indexname + "/" + projectname)
+    assert response.status_code == 200
+    result = response.json()["result"]
+    dates = set()
+    for value in result.values():
+        if "+links" not in value:
+            continue
+        for link in value["+links"]:
+            for log in link["log"]:
+                dates.add(tuple(log["when"]))
+    return dates
+
+
+def run():
+    baseurl = "https://m.devpi.net/"
+    username = "dc"
+    for indexname in get_indexes(baseurl, username):
+        projectnames = get_projectnames(baseurl, username, indexname)
+        if indexname == "master" or not indexname:
+            continue
+        assert projectnames == ["deltachat"]
+        for projectname in projectnames:
+            dates = get_release_dates(baseurl, username, indexname, projectname)
+            if not dates:
+                print(
+                    "%s has no releases" % (baseurl + username + "/" + indexname),
+                    file=sys.stderr)
+                date = datetime.datetime.now()
+            else:
+                date = datetime.datetime(*max(dates))
+            if (datetime.datetime.now() - date) > datetime.timedelta(days=MAXDAYS):
+                assert username and indexname
+                url = baseurl + username + "/" + indexname
+                subprocess.check_call(["devpi", "index", "-y", "--delete", url])
+
+
+
+if __name__ == '__main__':
+    run()

ci_scripts/docker-coredeps/Dockerfile

@@ -5,21 +5,17 @@ RUN echo /usr/local/lib64 > /etc/ld.so.conf.d/local.conf && \
     echo /usr/local/lib >> /etc/ld.so.conf.d/local.conf
 ENV PKG_CONFIG_PATH /usr/local/lib64/pkgconfig:/usr/local/lib/pkgconfig
 
+# Install a recent Perl, needed to install the openssl crate 
+ADD deps/build_perl.sh /builder/build_perl.sh
+RUN rm /usr/bin/perl
+RUN mkdir tmp1 && cd tmp1 && bash /builder/build_perl.sh && cd .. && rm -r tmp1
+
 ENV PIP_DISABLE_PIP_VERSION_CHECK 1
 
 # Install python tools (auditwheels,tox, ...)
 ADD deps/build_python.sh /builder/build_python.sh
 RUN mkdir tmp1 && cd tmp1 && bash /builder/build_python.sh && cd .. && rm -r tmp1
 
-# Install Rust nightly 
+# Install Rust nightly
 ADD deps/build_rust.sh /builder/build_rust.sh
 RUN mkdir tmp1 && cd tmp1 && bash /builder/build_rust.sh && cd .. && rm -r tmp1
-
-# Install a recent Perl, needed to install OpenSSL
-ADD deps/build_perl.sh /builder/build_perl.sh
-RUN mkdir tmp1 && cd tmp1 && bash /builder/build_perl.sh && cd .. && rm -r tmp1
-
-# Install OpenSSL
-ADD deps/build_openssl.sh /builder/build_openssl.sh
-RUN mkdir tmp1 && cd tmp1 && bash /builder/build_openssl.sh && cd .. && rm -r tmp1
-

ci_scripts/docker-coredeps/deps/build_perl.sh

@@ -1,11 +1,11 @@
 #!/bin/bash
 
-PERL_VERSION=5.28.0
-PERL_SHA256=7e929f64d4cb0e9d1159d4a59fc89394e27fa1f7004d0836ca0d514685406ea8
+PERL_VERSION=5.30.0
+# PERL_SHA256=7e929f64d4cb0e9d1159d4a59fc89394e27fa1f7004d0836ca0d514685406ea8
 curl -O https://www.cpan.org/src/5.0/perl-${PERL_VERSION}.tar.gz
-echo "${PERL_SHA256}  perl-${PERL_VERSION}.tar.gz" | sha256sum -c -
-tar xzf perl-${PERL_VERSION}.tar.gz
-cd perl-${PERL_VERSION} 
+# echo "${PERL_SHA256}  perl-${PERL_VERSION}.tar.gz" | sha256sum -c -
+tar -xzf perl-${PERL_VERSION}.tar.gz
+cd perl-${PERL_VERSION}
 
 ./Configure -de
 make

ci_scripts/docker-coredeps/deps/build_rust.sh

@@ -1,11 +1,11 @@
 #!/bin/bash
 
-set -e -x 
+set -e -x
 
-# Install Rust 
-curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain nightly-2019-07-10 -y
+# Install Rust
+curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain nightly-2019-11-06 -y
 export PATH=/root/.cargo/bin:$PATH
 rustc --version
 
 # remove some 300-400 MB that we don't need for automated builds
-rm -rf /root/.rustup/toolchains/nightly-2019-07-10-x86_64-unknown-linux-gnu/share/
+rm -rf /root/.rustup/toolchains/nightly-2019-11-06-x86_64-unknown-linux-gnu/share/

ci_scripts/docker-coredeps/deps/run_all.sh

@@ -1,49 +0,0 @@
-#!/bin/bash
-#
-# Build the Delta Chat C/Rust library
-#
-set -e -x
-
-# perform clean build of core and install 
-export TOXWORKDIR=.docker-tox
-
-# build core library
-
-cargo build --release -p deltachat_ffi
-
-# configure access to a base python and 
-# to several python interpreters needed by tox below
-export PATH=$PATH:/opt/python/cp35-cp35m/bin
-export PYTHONDONTWRITEBYTECODE=1
-pushd /bin
-ln -s /opt/python/cp27-cp27m/bin/python2.7
-ln -s /opt/python/cp36-cp36m/bin/python3.6
-ln -s /opt/python/cp37-cp37m/bin/python3.7
-popd
-
-#
-# run python tests
-#
-
-if [ -n "$TESTS" ]; then 
-
-    echo ----------------
-    echo run python tests
-    echo ----------------
-
-    pushd python 
-    # first run all tests ...
-    rm -rf tests/__pycache__
-    rm -rf src/deltachat/__pycache__
-    export PYTHONDONTWRITEBYTECODE=1
-    tox --workdir "$TOXWORKDIR" -e py27,py35,py36,py37
-    popd
-fi
-
-
-if [ -n "$DOCS" ]; then 
-    echo -----------------------
-    echo generating python docs
-    echo -----------------------
-    (cd python && tox --workdir "$TOXWORKDIR" -e doc) 
-fi

ci_scripts/manual_remote_tests.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+set -xe
+export CIRCLE_JOB=remote_tests_${1:?need to specify 'rust' or 'python'} 
+export CIRCLE_BUILD_NUM=$USER
+export CIRCLE_BRANCH=`git branch | grep \* | cut -d ' ' -f2`
+export CIRCLE_PROJECT_REPONAME=$(basename `git rev-parse --show-toplevel`)
+
+time bash ci_scripts/$CIRCLE_JOB.sh 

ci_scripts/old/gh-actions-rust.yml

@@ -0,0 +1,77 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+
+env:
+  RUSTFLAGS: -Dwarnings
+
+jobs:
+  build_and_test:
+    name: Build and test
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+        rust: [nightly]
+
+    steps:
+    - uses: actions/checkout@master
+
+    - name: Install ${{ matrix.rust }}
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: ${{ matrix.rust }}
+        override: true
+
+    - name: check
+      uses: actions-rs/cargo@v1
+      if: matrix.rust == 'nightly'
+      with:
+        command:  check
+        args: --all --bins --examples --tests
+
+    - name: tests
+      uses: actions-rs/cargo@v1
+      with:
+        command: test
+        args: --all
+
+    - name: tests ignored
+      uses: actions-rs/cargo@v1
+      with:
+        command: test
+        args: --all --release -- --ignored
+
+  check_fmt:
+    name: Checking fmt and docs
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+
+    - uses: actions-rs/toolchain@v1
+      with:
+          profile: minimal
+          toolchain: nightly
+          override: true
+          components: rustfmt
+
+    - name: fmt
+      run: cargo fmt --all -- --check
+
+#  clippy_check:
+#    name: Clippy check
+#    runs-on: ubuntu-latest
+#
+#    steps:
+#    - uses: actions/checkout@v1
+#    - uses: actions-rs/toolchain@v1
+#      with:
+#          profile: minimal
+#          toolchain: nightly
+#          override: true
+#          components: clippy
+#
+#    - name: clippy
+#      run: cargo clippy --all

ci_scripts/old/run-python.sh

@@ -0,0 +1,60 @@
+#!/bin/bash
+#
+# Build the Delta Chat C/Rust library typically run in a docker
+# container that contains all library deps but should also work
+# outside if you have the dependencies installed on your system.
+
+set -e -x
+
+# Perform clean build of core and install.
+export TOXWORKDIR=.docker-tox
+
+# install core lib
+
+export PATH=/root/.cargo/bin:$PATH
+cargo build --release -p deltachat_ffi
+# cargo test --all --all-features
+
+# Statically link against libdeltachat.a.
+export DCC_RS_DEV=$(pwd)
+
+# Configure access to a base python and to several python interpreters
+# needed by tox below.
+export PATH=$PATH:/opt/python/cp35-cp35m/bin
+export PYTHONDONTWRITEBYTECODE=1
+pushd /bin
+ln -s /opt/python/cp27-cp27m/bin/python2.7
+ln -s /opt/python/cp36-cp36m/bin/python3.6
+ln -s /opt/python/cp37-cp37m/bin/python3.7
+popd
+
+if [ -n "$TESTS" ]; then
+
+    pushd python
+    # prepare a clean tox run
+    rm -rf tests/__pycache__
+    rm -rf src/deltachat/__pycache__
+    export PYTHONDONTWRITEBYTECODE=1
+
+    # run tox. The circle-ci project env-var-setting DCC_PY_LIVECONFIG 
+    # allows running of "liveconfig" tests but for speed reasons
+    # we run them only for the highest python version we support
+    
+    # we split out qr-tests run to minimize likelyness of flaky tests
+    # (some qr tests are pretty heavy in terms of send/received
+    # messages and rust's imap code likely has concurrency problems) 
+    tox --workdir "$TOXWORKDIR" -e py37 -- --reruns 3 -k "not qr"
+    tox --workdir "$TOXWORKDIR" -e py37 -- --reruns 3 -k "qr"
+    unset DCC_PY_LIVECONFIG
+    tox --workdir "$TOXWORKDIR" -p4 -e lint,py35,py36,doc
+    tox --workdir "$TOXWORKDIR" -e auditwheels
+    popd
+fi
+
+
+# if [ -n "$DOCS" ]; then
+#     echo -----------------------
+#     echo generating python docs
+#     echo -----------------------
+#     (cd python && tox --workdir "$TOXWORKDIR" -e doc)
+# fi

ci_scripts/remote_python_packaging.sh

@@ -0,0 +1,51 @@
+#!/bin/bash 
+
+export BRANCH=${CIRCLE_BRANCH:?branch to build}
+export REPONAME=${CIRCLE_PROJECT_REPONAME:?repository name}
+export SSHTARGET=${SSHTARGET-ci@b1.delta.chat}
+
+# we construct the BUILDDIR such that we can easily share the
+# CARGO_TARGET_DIR between runs ("..")
+export BUILDDIR=ci_builds/$REPONAME/$BRANCH/${CIRCLE_JOB:?jobname}/${CIRCLE_BUILD_NUM:?circle-build-number}
+
+echo "--- Copying files to $SSHTARGET:$BUILDDIR"
+
+set -xe
+
+ssh -oBatchMode=yes -oStrictHostKeyChecking=no  $SSHTARGET mkdir -p "$BUILDDIR"
+git ls-files >.rsynclist 
+# we seem to need .git for setuptools_scm versioning 
+find .git >>.rsynclist
+rsync --delete --files-from=.rsynclist -az ./ "$SSHTARGET:$BUILDDIR"
+
+set +x
+
+# we have to create a remote file for the remote-docker run 
+# so we can do a simple ssh command with a TTY
+# so that when our job dies, all container-runs are aborted.
+# sidenote: the circle-ci machinery will kill ongoing jobs
+# if there are new commits and we want to ensure that 
+# everything is terminated/cleaned up and we have no orphaned
+# useless still-running docker-containers consuming resources. 
+
+ssh $SSHTARGET bash -c "cat >$BUILDDIR/exec_docker_run" <<_HERE
+    set +x -e
+    cd $BUILDDIR
+    export DCC_PY_LIVECONFIG=$DCC_PY_LIVECONFIG
+
+    set -x
+
+    # run everything else inside docker 
+    docker run -e DCC_PY_LIVECONFIG \
+       --rm -it -v \$(pwd):/mnt -w /mnt \
+       deltachat/coredeps ci_scripts/run_all.sh
+
+_HERE
+
+echo "--- Running $CIRCLE_JOB remotely"
+
+ssh -t $SSHTARGET bash "$BUILDDIR/exec_docker_run"
+mkdir -p workspace 
+rsync -avz "$SSHTARGET:$BUILDDIR/python/.docker-tox/wheelhouse/*manylinux1*" workspace/wheelhouse/
+rsync -avz "$SSHTARGET:$BUILDDIR/python/.docker-tox/dist/*" workspace/wheelhouse/
+rsync -avz "$SSHTARGET:$BUILDDIR/python/doc/_build/" workspace/py-docs

ci_scripts/remote_tests_python.sh

@@ -0,0 +1,46 @@
+#!/bin/bash 
+
+export BRANCH=${CIRCLE_BRANCH:?branch to build}
+export REPONAME=${CIRCLE_PROJECT_REPONAME:?repository name}
+export SSHTARGET=${SSHTARGET-ci@b1.delta.chat}
+
+# we construct the BUILDDIR such that we can easily share the
+# CARGO_TARGET_DIR between runs ("..")
+export BUILDDIR=ci_builds/$REPONAME/$BRANCH/${CIRCLE_JOB:?jobname}/${CIRCLE_BUILD_NUM:?circle-build-number}
+
+echo "--- Copying files to $SSHTARGET:$BUILDDIR"
+
+set -xe
+
+ssh -oBatchMode=yes -oStrictHostKeyChecking=no  $SSHTARGET mkdir -p "$BUILDDIR"
+git ls-files >.rsynclist 
+# we seem to need .git for setuptools_scm versioning 
+find .git >>.rsynclist
+rsync --delete --files-from=.rsynclist -az ./ "$SSHTARGET:$BUILDDIR"
+
+set +x
+
+echo "--- Running $CIRCLE_JOB remotely"
+
+ssh $SSHTARGET <<_HERE
+    set +x -e
+    cd $BUILDDIR
+    # let's share the target dir with our last run on this branch/job-type
+    # cargo will make sure to block/unblock us properly 
+    export CARGO_TARGET_DIR=\`pwd\`/../target
+    export TARGET=release
+    export DCC_PY_LIVECONFIG=$DCC_PY_LIVECONFIG
+
+    #we rely on tox/virtualenv being available in the host
+    #rm -rf virtualenv venv
+    #virtualenv -q -p python3.7 venv 
+    #source venv/bin/activate
+    #pip install -q tox virtualenv
+
+    set -x
+    which python
+    source \$HOME/venv/bin/activate
+    which python
+
+    bash ci_scripts/run-python-test.sh 
+_HERE

ci_scripts/remote_tests_rust.sh

@@ -0,0 +1,32 @@
+#!/bin/bash 
+
+export BRANCH=${CIRCLE_BRANCH:?branch to build}
+export REPONAME=${CIRCLE_PROJECT_REPONAME:?repository name}
+export SSHTARGET=${SSHTARGET-ci@b1.delta.chat}
+
+# we construct the BUILDDIR such that we can easily share the
+# CARGO_TARGET_DIR between runs ("..")
+export BUILDDIR=ci_builds/$REPONAME/$BRANCH/${CIRCLE_JOB:?jobname}/${CIRCLE_BUILD_NUM:?circle-build-number}
+
+set -e
+
+echo "--- Copying files to $SSHTARGET:$BUILDDIR"
+
+ssh -oBatchMode=yes -oStrictHostKeyChecking=no  $SSHTARGET mkdir -p "$BUILDDIR"
+git ls-files >.rsynclist 
+rsync --delete --files-from=.rsynclist -az ./ "$SSHTARGET:$BUILDDIR"
+
+echo "--- Running $CIRCLE_JOB remotely"
+
+ssh $SSHTARGET <<_HERE
+    set +x -e
+    cd $BUILDDIR
+    # let's share the target dir with our last run on this branch/job-type
+    # cargo will make sure to block/unblock us properly 
+    export CARGO_TARGET_DIR=\`pwd\`/../target
+    export TARGET=x86_64-unknown-linux-gnu
+    export RUSTC_WRAPPER=sccache
+
+    bash ci_scripts/run-rust-test.sh
+_HERE
+

ci_scripts/run-doxygen.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+set -ex
+
+cd deltachat-ffi 
+PROJECT_NUMBER=$(git log -1 --format "%h (%cd)") doxygen 

ci_scripts/run-python-test.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+#
+# Run functional tests for Delta Chat core using the python bindings 
+# and tox/pytest. 
+
+set -e -x
+
+# for core-building and python install step
+export DCC_RS_TARGET=release
+export DCC_RS_DEV=`pwd`
+
+cd python
+
+python install_python_bindings.py onlybuild
+
+# remove and inhibit writing PYC files 
+rm -rf tests/__pycache__
+rm -rf src/deltachat/__pycache__
+export PYTHONDONTWRITEBYTECODE=1
+
+# run python tests (tox invokes pytest to run tests in python/tests)
+#TOX_PARALLEL_NO_SPINNER=1 tox -e lint,doc
+tox -e lint
+tox -e doc,py37

ci_scripts/run-rust-test.sh

@@ -2,7 +2,7 @@
 
 set -ex
 
-export RUST_TEST_THREADS=1
+#export RUST_TEST_THREADS=1
 export RUST_BACKTRACE=1
 export RUSTFLAGS='--deny warnings'
 export OPT="--target=$TARGET"
@@ -31,16 +31,15 @@ fi
 if [[ $NORUN == "1" ]]; then
     export CARGO_SUBCMD="build"
 else
-    export CARGO_SUBCMD="test"
+    export CARGO_SUBCMD="test --all"
     export OPT="${OPT} "
     export OPT_RELEASE="${OPT_RELEASE} "
     export OPT_RELEASE_IGNORED="${OPT_RELEASE} -- --ignored"
 fi
 
-# Run all the test configurations:
+# Run all the test configurations 
+# RUSTC_WRAPPER=SCCACHE seems to destroy parallelism / prolong the test
+unset RUSTC_WRAPPER
 $CARGO_CMD $CARGO_SUBCMD $OPT
 $CARGO_CMD $CARGO_SUBCMD $OPT_RELEASE
 $CARGO_CMD $CARGO_SUBCMD $OPT_RELEASE_IGNORED
-
-# Build the ffi lib
-$CARGO_CMD $CARGO_SUBCMD $OPT_FFI_RELEASE

ci_scripts/run_all.sh

@@ -1,15 +1,13 @@
 #!/bin/bash
 #
-# Build the Delta Chat C/Rust library typically run in a docker
-# container that contains all library deps but should also work
-# outside if you have the dependencies installed on your system.
+# Build the Delta Chat Core Rust library, Python wheels and docs 
 
 set -e -x
 
 # Perform clean build of core and install.
 export TOXWORKDIR=.docker-tox
 
-# install core lib
+# compile core lib
 
 export PATH=/root/.cargo/bin:$PATH
 cargo build --release -p deltachat_ffi
@@ -26,30 +24,25 @@ pushd /bin
 ln -s /opt/python/cp27-cp27m/bin/python2.7
 ln -s /opt/python/cp36-cp36m/bin/python3.6
 ln -s /opt/python/cp37-cp37m/bin/python3.7
+ln -s /opt/python/cp38-cp38/bin/python3.8
 popd
 
-if [ -n "$TESTS" ]; then
+pushd python
+# prepare a clean tox run
+rm -rf tests/__pycache__
+rm -rf src/deltachat/__pycache__
+mkdir -p $TOXWORKDIR
 
-    pushd python
-    # prepare a clean tox run
-    rm -rf tests/__pycache__
-    rm -rf src/deltachat/__pycache__
-    export PYTHONDONTWRITEBYTECODE=1
-
-    # run tox
-    # XXX we don't run liveconfig tests because they hang sometimes
-    # see https://github.com/deltachat/deltachat-core-rust/issues/331
-    # unset DCC_PY_LIVECONFIG
-
-    tox --workdir "$TOXWORKDIR" -e lint,py35,py36,py37,auditwheels -- -k "not qr"
-    tox --workdir "$TOXWORKDIR" -e py35,py36,py37 -- -k "qr"
-    popd
-fi
+# disable live-account testing to speed up test runs and wheel building
+# XXX we may switch on some live-tests on for better ensurances 
+# Note that the independent remote_tests_python step does all kinds of
+# live-testing already. 
+unset DCC_PY_LIVECONFIG 
+tox --workdir "$TOXWORKDIR" -e py35,py36,py37,py38,auditwheels
+popd
 
 
-if [ -n "$DOCS" ]; then
-    echo -----------------------
-    echo generating python docs
-    echo -----------------------
-    (cd python && tox --workdir "$TOXWORKDIR" -e doc)
-fi
+echo -----------------------
+echo generating python docs
+echo -----------------------
+(cd python && tox --workdir "$TOXWORKDIR" -e doc)

deltachat-ffi/Cargo.toml

@@ -1,11 +1,11 @@
 [package]
 name = "deltachat_ffi"
-version = "1.0.0-alpha.4"
+version = "1.0.0-beta.23"
 description = "Deltachat FFI"
-authors = ["dignifiedquire <dignifiedquire@gmail.com>"]
+authors = ["Delta Chat Developers (ML) <delta@codespeak.net>"]
 edition = "2018"
 readme = "README.md"
-license = "MIT OR Apache-2.0"
+license = "MPL-2.0"
 
 keywords = ["deltachat", "chat", "openpgp", "email", "encryption"]
 categories = ["cryptography", "std", "email"]
@@ -16,9 +16,12 @@ crate-type = ["cdylib", "staticlib"]
 
 [dependencies]
 deltachat = { path = "../", default-features = false }
+deltachat-provider-database = "0.2.1"
 libc = "0.2"
 human-panic = "1.0.1"
 num-traits = "0.2.6"
+failure = "0.1.6"
+serde_json = "1.0"
 
 [features]
 default = ["vendored", "nightly", "ringbuf"]

deltachat-ffi/src/dc_array.rs

@@ -2,7 +2,6 @@ use crate::location::Location;
 
 /* * the structure behind dc_array_t */
 #[derive(Debug, Clone)]
-#[allow(non_camel_case_types)]
 pub enum dc_array_t {
     Locations(Vec<Location>),
     Uint(Vec<u32>),

deltachat-ffi/src/providers.rs

@@ -0,0 +1,91 @@
+extern crate deltachat_provider_database;
+
+use std::ptr;
+
+use crate::string::{to_string_lossy, StrExt};
+use deltachat_provider_database::StatusState;
+
+#[no_mangle]
+pub type dc_provider_t = deltachat_provider_database::Provider;
+
+#[no_mangle]
+pub unsafe extern "C" fn dc_provider_new_from_domain(
+    domain: *const libc::c_char,
+) -> *const dc_provider_t {
+    match deltachat_provider_database::get_provider_info(&to_string_lossy(domain)) {
+        Some(provider) => provider,
+        None => ptr::null(),
+    }
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn dc_provider_new_from_email(
+    email: *const libc::c_char,
+) -> *const dc_provider_t {
+    let email = to_string_lossy(email);
+    let domain = deltachat_provider_database::get_domain_from_email(&email);
+    match deltachat_provider_database::get_provider_info(domain) {
+        Some(provider) => provider,
+        None => ptr::null(),
+    }
+}
+
+macro_rules! null_guard {
+    ($context:tt) => {
+        if $context.is_null() {
+            return ptr::null_mut() as *mut libc::c_char;
+        }
+    };
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn dc_provider_get_overview_page(
+    provider: *const dc_provider_t,
+) -> *mut libc::c_char {
+    null_guard!(provider);
+    format!(
+        "{}/{}",
+        deltachat_provider_database::PROVIDER_OVERVIEW_URL,
+        (*provider).overview_page
+    )
+    .strdup()
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn dc_provider_get_name(provider: *const dc_provider_t) -> *mut libc::c_char {
+    null_guard!(provider);
+    (*provider).name.strdup()
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn dc_provider_get_markdown(
+    provider: *const dc_provider_t,
+) -> *mut libc::c_char {
+    null_guard!(provider);
+    (*provider).markdown.strdup()
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn dc_provider_get_status_date(
+    provider: *const dc_provider_t,
+) -> *mut libc::c_char {
+    null_guard!(provider);
+    (*provider).status.date.strdup()
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn dc_provider_get_status(provider: *const dc_provider_t) -> u32 {
+    if provider.is_null() {
+        return 0;
+    }
+    match (*provider).status.state {
+        StatusState::OK => 1,
+        StatusState::PREPARATION => 2,
+        StatusState::BROKEN => 3,
+    }
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn dc_provider_unref(_provider: *const dc_provider_t) {}
+
+// TODO expose general provider overview url?

deltachat-ffi/src/string.rs

@@ -0,0 +1,350 @@
+use failure::Fail;
+use std::ffi::{CStr, CString};
+
+/// Duplicates a string
+///
+/// returns an empty string if NULL is given, never returns NULL (exits on errors)
+///
+/// # Examples
+///
+/// ```rust,norun
+/// use deltachat::dc_tools::{dc_strdup, to_string_lossy};
+/// unsafe {
+///     let str_a = b"foobar\x00" as *const u8 as *const libc::c_char;
+///     let str_a_copy = dc_strdup(str_a);
+///     assert_eq!(to_string_lossy(str_a_copy), "foobar");
+///     assert_ne!(str_a, str_a_copy);
+/// }
+/// ```
+pub unsafe fn dc_strdup(s: *const libc::c_char) -> *mut libc::c_char {
+    let ret: *mut libc::c_char;
+    if !s.is_null() {
+        ret = libc::strdup(s);
+        assert!(!ret.is_null());
+    } else {
+        ret = libc::calloc(1, 1) as *mut libc::c_char;
+        assert!(!ret.is_null());
+    }
+
+    ret
+}
+
+/// Error type for the [OsStrExt] trait
+#[derive(Debug, Fail, PartialEq)]
+pub enum CStringError {
+    /// The string contains an interior null byte
+    #[fail(display = "String contains an interior null byte")]
+    InteriorNullByte,
+    /// The string is not valid Unicode
+    #[fail(display = "String is not valid unicode")]
+    NotUnicode,
+}
+
+/// Extra convenience methods on [std::ffi::OsStr] to work with `*libc::c_char`.
+///
+/// The primary function of this trait is to more easily convert
+/// [OsStr], [OsString] or [Path] into pointers to C strings.  This always
+/// allocates a new string since it is very common for the source
+/// string not to have the required terminal null byte.
+///
+/// It is implemented for `AsRef<std::ffi::OsStr>>` trait, which
+/// allows any type which implements this trait to transparently use
+/// this.  This is how the conversion for [Path] works.
+///
+/// [OsStr]: std::ffi::OsStr
+/// [OsString]: std::ffi::OsString
+/// [Path]: std::path::Path
+///
+/// # Example
+///
+/// ```
+/// use deltachat::dc_tools::{dc_strdup, OsStrExt};
+/// let path = std::path::Path::new("/some/path");
+/// let path_c = path.to_c_string().unwrap();
+/// unsafe {
+///     let mut c_ptr: *mut libc::c_char = dc_strdup(path_c.as_ptr());
+/// }
+/// ```
+pub trait OsStrExt {
+    /// Convert a  [std::ffi::OsStr] to an [std::ffi::CString]
+    ///
+    /// This is useful to convert e.g. a [std::path::Path] to
+    /// [*libc::c_char] by using
+    /// [Path::as_os_str()](std::path::Path::as_os_str) and
+    /// [CStr::as_ptr()](std::ffi::CStr::as_ptr).
+    ///
+    /// This returns [CString] and not [&CStr] because not all [OsStr]
+    /// slices end with a null byte, particularly those coming from
+    /// [Path] do not have a null byte and having to handle this as
+    /// the caller would defeat the point of this function.
+    ///
+    /// On Windows this requires that the [OsStr] contains valid
+    /// unicode, which should normally be the case for a [Path].
+    ///
+    /// [CString]: std::ffi::CString
+    /// [CStr]: std::ffi::CStr
+    /// [OsStr]: std::ffi::OsStr
+    /// [Path]: std::path::Path
+    ///
+    /// # Errors
+    ///
+    /// Since a C `*char` is terminated by a NULL byte this conversion
+    /// will fail, when the [OsStr] has an interior null byte.  The
+    /// function will return
+    /// `[Err]([CStringError::InteriorNullByte])`.  When converting
+    /// from a [Path] it should be safe to
+    /// [`.unwrap()`](std::result::Result::unwrap) this anyway since a
+    /// [Path] should not contain interior null bytes.
+    ///
+    /// On windows when the string contains invalid Unicode
+    /// `[Err]([CStringError::NotUnicode])` is returned.
+    fn to_c_string(&self) -> Result<CString, CStringError>;
+}
+
+impl<T: AsRef<std::ffi::OsStr>> OsStrExt for T {
+    #[cfg(not(target_os = "windows"))]
+    fn to_c_string(&self) -> Result<CString, CStringError> {
+        use std::os::unix::ffi::OsStrExt;
+        CString::new(self.as_ref().as_bytes()).map_err(|err| match err {
+            std::ffi::NulError { .. } => CStringError::InteriorNullByte,
+        })
+    }
+
+    #[cfg(target_os = "windows")]
+    fn to_c_string(&self) -> Result<CString, CStringError> {
+        os_str_to_c_string_unicode(&self)
+    }
+}
+
+// Implementation for os_str_to_c_string on windows.
+#[allow(dead_code)]
+fn os_str_to_c_string_unicode(
+    os_str: &dyn AsRef<std::ffi::OsStr>,
+) -> Result<CString, CStringError> {
+    match os_str.as_ref().to_str() {
+        Some(val) => CString::new(val.as_bytes()).map_err(|err| match err {
+            std::ffi::NulError { .. } => CStringError::InteriorNullByte,
+        }),
+        None => Err(CStringError::NotUnicode),
+    }
+}
+
+/// Convenience methods/associated functions for working with [CString]
+///
+/// This is helps transitioning from unsafe code.
+pub trait CStringExt {
+    /// Create a new [CString], yolo style
+    ///
+    /// This unwrap the result, panicking when there are embedded NULL
+    /// bytes.
+    fn yolo<T: Into<Vec<u8>>>(t: T) -> CString {
+        CString::new(t).expect("String contains null byte, can not be CString")
+    }
+}
+
+impl CStringExt for CString {}
+
+/// Convenience methods to make transitioning from raw C strings easier.
+///
+/// To interact with (legacy) C APIs we often need to convert from
+/// Rust strings to raw C strings.  This can be clumsy to do correctly
+/// and the compiler sometimes allows it in an unsafe way.  These
+/// methods make it more succinct and help you get it right.
+pub trait StrExt {
+    /// Allocate a new raw C `*char` version of this string.
+    ///
+    /// This allocates a new raw C string which must be freed using
+    /// `free`.  It takes care of some common pitfalls with using
+    /// [CString.as_ptr].
+    ///
+    /// [CString.as_ptr]: std::ffi::CString.as_ptr
+    ///
+    /// # Panics
+    ///
+    /// This function will panic when the original string contains an
+    /// interior null byte as this can not be represented in raw C
+    /// strings.
+    unsafe fn strdup(&self) -> *mut libc::c_char;
+}
+
+impl<T: AsRef<str>> StrExt for T {
+    unsafe fn strdup(&self) -> *mut libc::c_char {
+        let tmp = CString::yolo(self.as_ref());
+        dc_strdup(tmp.as_ptr())
+    }
+}
+
+pub fn to_string_lossy(s: *const libc::c_char) -> String {
+    if s.is_null() {
+        return "".into();
+    }
+
+    let cstr = unsafe { CStr::from_ptr(s) };
+
+    cstr.to_string_lossy().to_string()
+}
+
+pub fn to_opt_string_lossy(s: *const libc::c_char) -> Option<String> {
+    if s.is_null() {
+        return None;
+    }
+
+    Some(to_string_lossy(s))
+}
+
+/// Convert a C `*char` pointer to a [std::path::Path] slice.
+///
+/// This converts a `*libc::c_char` pointer to a [Path] slice.  This
+/// essentially has to convert the pointer to [std::ffi::OsStr] to do
+/// so and thus is the inverse of [OsStrExt::to_c_string].  Just like
+/// [OsStrExt::to_c_string] requires valid Unicode on Windows, this
+/// requires that the pointer contains valid UTF-8 on Windows.
+///
+/// Because this returns a reference the [Path] silce can not outlive
+/// the original pointer.
+///
+/// [Path]: std::path::Path
+#[cfg(not(target_os = "windows"))]
+pub fn as_path<'a>(s: *const libc::c_char) -> &'a std::path::Path {
+    assert!(!s.is_null(), "cannot be used on null pointers");
+    use std::os::unix::ffi::OsStrExt;
+    unsafe {
+        let c_str = std::ffi::CStr::from_ptr(s).to_bytes();
+        let os_str = std::ffi::OsStr::from_bytes(c_str);
+        std::path::Path::new(os_str)
+    }
+}
+
+// as_path() implementation for windows, documented above.
+#[cfg(target_os = "windows")]
+pub fn as_path<'a>(s: *const libc::c_char) -> &'a std::path::Path {
+    as_path_unicode(s)
+}
+
+// Implementation for as_path() on Windows.
+//
+// Having this as a separate function means it can be tested on unix
+// too.
+#[allow(dead_code)]
+fn as_path_unicode<'a>(s: *const libc::c_char) -> &'a std::path::Path {
+    assert!(!s.is_null(), "cannot be used on null pointers");
+
+    let cstr = unsafe { CStr::from_ptr(s) };
+    let str = cstr.to_str().unwrap_or_else(|err| panic!("{}", err));
+
+    std::path::Path::new(str)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use libc::{free, strcmp};
+
+    #[test]
+    fn test_os_str_to_c_string_cwd() {
+        let some_dir = std::env::current_dir().unwrap();
+        some_dir.as_os_str().to_c_string().unwrap();
+    }
+
+    #[test]
+    fn test_os_str_to_c_string_unicode() {
+        let some_str = String::from("/some/valid/utf8");
+        let some_dir = std::path::Path::new(&some_str);
+        assert_eq!(
+            some_dir.as_os_str().to_c_string().unwrap(),
+            CString::new("/some/valid/utf8").unwrap()
+        );
+    }
+
+    #[test]
+    fn test_os_str_to_c_string_nul() {
+        let some_str = std::ffi::OsString::from("foo\x00bar");
+        assert_eq!(
+            some_str.to_c_string().err().unwrap(),
+            CStringError::InteriorNullByte
+        )
+    }
+
+    #[test]
+    fn test_path_to_c_string_cwd() {
+        let some_dir = std::env::current_dir().unwrap();
+        some_dir.to_c_string().unwrap();
+    }
+
+    #[test]
+    fn test_path_to_c_string_unicode() {
+        let some_str = String::from("/some/valid/utf8");
+        let some_dir = std::path::Path::new(&some_str);
+        assert_eq!(
+            some_dir.as_os_str().to_c_string().unwrap(),
+            CString::new("/some/valid/utf8").unwrap()
+        );
+    }
+
+    #[test]
+    fn test_os_str_to_c_string_unicode_fn() {
+        let some_str = std::ffi::OsString::from("foo");
+        assert_eq!(
+            os_str_to_c_string_unicode(&some_str).unwrap(),
+            CString::new("foo").unwrap()
+        );
+    }
+
+    #[test]
+    fn test_path_to_c_string_unicode_fn() {
+        let some_str = String::from("/some/path");
+        let some_path = std::path::Path::new(&some_str);
+        assert_eq!(
+            os_str_to_c_string_unicode(&some_path).unwrap(),
+            CString::new("/some/path").unwrap()
+        );
+    }
+
+    #[test]
+    fn test_os_str_to_c_string_unicode_fn_nul() {
+        let some_str = std::ffi::OsString::from("fooz\x00bar");
+        assert_eq!(
+            os_str_to_c_string_unicode(&some_str).err().unwrap(),
+            CStringError::InteriorNullByte
+        );
+    }
+
+    #[test]
+    fn test_as_path() {
+        let some_path = CString::new("/some/path").unwrap();
+        let ptr = some_path.as_ptr();
+        assert_eq!(as_path(ptr), std::ffi::OsString::from("/some/path"))
+    }
+
+    #[test]
+    fn test_as_path_unicode_fn() {
+        let some_path = CString::new("/some/path").unwrap();
+        let ptr = some_path.as_ptr();
+        assert_eq!(as_path_unicode(ptr), std::ffi::OsString::from("/some/path"));
+    }
+
+    #[test]
+    fn test_cstring_yolo() {
+        assert_eq!(CString::new("hello").unwrap(), CString::yolo("hello"));
+    }
+
+    #[test]
+    fn test_strdup_str() {
+        unsafe {
+            let s = "hello".strdup();
+            let cmp = strcmp(s, b"hello\x00" as *const u8 as *const libc::c_char);
+            free(s as *mut libc::c_void);
+            assert_eq!(cmp, 0);
+        }
+    }
+
+    #[test]
+    fn test_strdup_string() {
+        unsafe {
+            let s = String::from("hello").strdup();
+            let cmp = strcmp(s, b"hello\x00" as *const u8 as *const libc::c_char);
+            free(s as *mut libc::c_void);
+            assert_eq!(cmp, 0);
+        }
+    }
+}

deltachat_derive/Cargo.toml

@@ -1,12 +1,13 @@
 [package]
 name = "deltachat_derive"
-version = "0.1.0"
-authors = ["Dmitry Bogatov <KAction@debian.org>"]
+version = "1.0.0-beta.22"
+authors = ["Delta Chat Developers (ML) <delta@codespeak.net>"]
 edition = "2018"
+license = "MPL-2.0"
 
 [lib]
 proc-macro = true
 
 [dependencies]
-syn = "0.14.4"
-quote = "0.6.3"
+syn = "1.0.13"
+quote = "1.0.2"

examples/repl/cmdline.rs

@@ -1,36 +1,33 @@
-use std::ffi::CString;
-use std::ptr;
+use std::path::Path;
 use std::str::FromStr;
 
-use deltachat::chat::{self, Chat};
+use deltachat::chat::{self, Chat, ChatId};
 use deltachat::chatlist::*;
 use deltachat::config;
-use deltachat::configure::*;
 use deltachat::constants::*;
 use deltachat::contact::*;
 use deltachat::context::*;
-use deltachat::dc_imex::*;
 use deltachat::dc_receive_imf::*;
 use deltachat::dc_tools::*;
 use deltachat::error::Error;
+use deltachat::imex::*;
 use deltachat::job::*;
 use deltachat::location;
 use deltachat::lot::LotState;
-use deltachat::message::*;
+use deltachat::message::{self, Message, MessageState, MsgId};
 use deltachat::peerstate::*;
 use deltachat::qr::*;
 use deltachat::sql;
-use deltachat::x::*;
 use deltachat::Event;
 
-/// Reset database tables. This function is called from Core cmdline.
+/// Reset database tables.
 /// Argument is a bitmask, executing single or multiple actions in one call.
 /// e.g. bitmask 7 triggers actions definded with bits 1, 2 and 4.
-pub unsafe fn dc_reset_tables(context: &Context, bits: i32) -> i32 {
-    info!(context, "Resetting tables ({})...", bits);
+fn dc_reset_tables(context: &Context, bits: i32) -> i32 {
+    println!("Resetting tables ({})...", bits);
     if 0 != bits & 1 {
         sql::execute(context, &context.sql, "DELETE FROM jobs;", params![]).unwrap();
-        info!(context, "(1) Jobs reset.");
+        println!("(1) Jobs reset.");
     }
     if 0 != bits & 2 {
         sql::execute(
@@ -40,11 +37,11 @@ pub unsafe fn dc_reset_tables(context: &Context, bits: i32) -> i32 {
             params![],
         )
         .unwrap();
-        info!(context, "(2) Peerstates reset.");
+        println!("(2) Peerstates reset.");
     }
     if 0 != bits & 4 {
         sql::execute(context, &context.sql, "DELETE FROM keypairs;", params![]).unwrap();
-        info!(context, "(4) Private keypairs reset.");
+        println!("(4) Private keypairs reset.");
     }
     if 0 != bits & 8 {
         sql::execute(
@@ -83,215 +80,172 @@ pub unsafe fn dc_reset_tables(context: &Context, bits: i32) -> i32 {
         )
         .unwrap();
         sql::execute(context, &context.sql, "DELETE FROM leftgrps;", params![]).unwrap();
-        info!(context, "(8) Rest but server config reset.");
+        println!("(8) Rest but server config reset.");
     }
 
     context.call_cb(Event::MsgsChanged {
-        chat_id: 0,
-        msg_id: 0,
+        chat_id: ChatId::new(0),
+        msg_id: MsgId::new(0),
     });
 
     1
 }
 
-unsafe fn dc_poke_eml_file(context: &Context, filename: *const libc::c_char) -> libc::c_int {
-    /* mainly for testing, may be called by dc_import_spec() */
-    let mut success: libc::c_int = 0i32;
-    let mut data: *mut libc::c_char = ptr::null_mut();
-    let mut data_bytes = 0;
-    if !(dc_read_file(
-        context,
-        filename,
-        &mut data as *mut *mut libc::c_char as *mut *mut libc::c_void,
-        &mut data_bytes,
-    ) == 0i32)
-    {
-        dc_receive_imf(context, data, data_bytes, "import", 0, 0);
-        success = 1;
-    }
-    free(data as *mut libc::c_void);
+fn dc_poke_eml_file(context: &Context, filename: impl AsRef<Path>) -> Result<(), Error> {
+    let data = dc_read_file(context, filename)?;
 
-    success
+    if let Err(err) = dc_receive_imf(context, &data, "import", 0, 0) {
+        println!("dc_receive_imf errored: {:?}", err);
+    }
+    Ok(())
 }
 
 /// Import a file to the database.
 /// For testing, import a folder with eml-files, a single eml-file, e-mail plus public key and so on.
-/// For normal importing, use dc_imex().
+/// For normal importing, use imex().
 ///
 /// @private @memberof Context
 /// @param context The context as created by dc_context_new().
 /// @param spec The file or directory to import. NULL for the last command.
 /// @return 1=success, 0=error.
-unsafe fn poke_spec(context: &Context, spec: *const libc::c_char) -> libc::c_int {
+fn poke_spec(context: &Context, spec: Option<&str>) -> libc::c_int {
     if !context.sql.is_open() {
         error!(context, "Import: Database not opened.");
         return 0;
     }
 
-    let ok_to_continue;
-    let mut success: libc::c_int = 0;
-    let real_spec: *mut libc::c_char;
-    let mut suffix: *mut libc::c_char = ptr::null_mut();
-    let mut read_cnt: libc::c_int = 0;
+    let mut read_cnt = 0;
+
+    let real_spec: String;
 
     /* if `spec` is given, remember it for later usage; if it is not given, try to use the last one */
-    if !spec.is_null() {
-        real_spec = dc_strdup(spec);
+    if let Some(spec) = spec {
+        real_spec = spec.to_string();
         context
             .sql
-            .set_config(context, "import_spec", Some(as_str(real_spec)))
+            .set_raw_config(context, "import_spec", Some(&real_spec))
             .unwrap();
-        ok_to_continue = true;
     } else {
-        let rs = context.sql.get_config(context, "import_spec");
+        let rs = context.sql.get_raw_config(context, "import_spec");
         if rs.is_none() {
             error!(context, "Import: No file or folder given.");
-            ok_to_continue = false;
-        } else {
-            ok_to_continue = true;
+            return 0;
         }
-        real_spec = rs.unwrap_or_default().strdup();
+        real_spec = rs.unwrap();
     }
-    if ok_to_continue {
-        let ok_to_continue2;
-        suffix = dc_get_filesuffix_lc(as_str(real_spec));
-        if !suffix.is_null() && strcmp(suffix, b"eml\x00" as *const u8 as *const libc::c_char) == 0
-        {
-            if 0 != dc_poke_eml_file(context, real_spec) {
-                read_cnt += 1
-            }
-            ok_to_continue2 = true;
+    if let Some(suffix) = dc_get_filesuffix_lc(&real_spec) {
+        if suffix == "eml" && dc_poke_eml_file(context, &real_spec).is_ok() {
+            read_cnt += 1
+        }
+    } else {
+        /* import a directory */
+        let dir_name = std::path::Path::new(&real_spec);
+        let dir = std::fs::read_dir(dir_name);
+        if dir.is_err() {
+            error!(context, "Import: Cannot open directory \"{}\".", &real_spec,);
+            return 0;
         } else {
-            /* import a directory */
-            let dir_name = std::path::Path::new(as_str(real_spec));
-            let dir = std::fs::read_dir(dir_name);
-            if dir.is_err() {
-                error!(
-                    context,
-                    "Import: Cannot open directory \"{}\".",
-                    as_str(real_spec),
-                );
-                ok_to_continue2 = false;
-            } else {
-                let dir = dir.unwrap();
-                for entry in dir {
-                    if entry.is_err() {
-                        break;
-                    }
-                    let entry = entry.unwrap();
-                    let name_f = entry.file_name();
-                    let name = name_f.to_string_lossy();
-                    if name.ends_with(".eml") {
-                        let path_plus_name = format!("{}/{}", as_str(real_spec), name);
-                        info!(context, "Import: {}", path_plus_name);
-                        let path_plus_name_c = CString::yolo(path_plus_name);
-                        if 0 != dc_poke_eml_file(context, path_plus_name_c.as_ptr()) {
-                            read_cnt += 1
-                        }
+            let dir = dir.unwrap();
+            for entry in dir {
+                if entry.is_err() {
+                    break;
+                }
+                let entry = entry.unwrap();
+                let name_f = entry.file_name();
+                let name = name_f.to_string_lossy();
+                if name.ends_with(".eml") {
+                    let path_plus_name = format!("{}/{}", &real_spec, name);
+                    println!("Import: {}", path_plus_name);
+                    if dc_poke_eml_file(context, path_plus_name).is_ok() {
+                        read_cnt += 1
                     }
                 }
-                ok_to_continue2 = true;
             }
         }
-        if ok_to_continue2 {
-            info!(
-                context,
-                "Import: {} items read from \"{}\".",
-                read_cnt,
-                as_str(real_spec)
-            );
-            if read_cnt > 0 {
-                context.call_cb(Event::MsgsChanged {
-                    chat_id: 0,
-                    msg_id: 0,
-                });
-            }
-            success = 1
-        }
     }
-
-    free(real_spec as *mut libc::c_void);
-    free(suffix as *mut libc::c_void);
-    success
+    println!("Import: {} items read from \"{}\".", read_cnt, &real_spec);
+    if read_cnt > 0 {
+        context.call_cb(Event::MsgsChanged {
+            chat_id: ChatId::new(0),
+            msg_id: MsgId::new(0),
+        });
+    }
+    1
 }
 
-unsafe fn log_msg(context: &Context, prefix: impl AsRef<str>, msg: &Message) {
-    let contact = Contact::get_by_id(context, dc_msg_get_from_id(msg)).expect("invalid contact");
+fn log_msg(context: &Context, prefix: impl AsRef<str>, msg: &Message) {
+    let contact = Contact::get_by_id(context, msg.get_from_id()).expect("invalid contact");
     let contact_name = contact.get_name();
     let contact_id = contact.get_id();
 
-    let statestr = match dc_msg_get_state(msg) {
+    let statestr = match msg.get_state() {
         MessageState::OutPending => " o",
         MessageState::OutDelivered => " √",
         MessageState::OutMdnRcvd => " √√",
         MessageState::OutFailed => " !!",
         _ => "",
     };
-    let temp2 = dc_timestamp_to_str(dc_msg_get_timestamp(msg));
-    let msgtext = dc_msg_get_text(msg);
-    info!(
-        context,
-        "{}#{}{}{}: {} (Contact#{}): {} {}{}{}{} [{}]",
+    let temp2 = dc_timestamp_to_str(msg.get_timestamp());
+    let msgtext = msg.get_text();
+    println!(
+        "{}{}{}{}: {} (Contact#{}): {} {}{}{}{}{} [{}]",
         prefix.as_ref(),
-        dc_msg_get_id(msg) as libc::c_int,
-        if dc_msg_get_showpadlock(msg) {
-            "🔒"
-        } else {
-            ""
-        },
-        if dc_msg_has_location(msg) { "📍" } else { "" },
+        msg.get_id(),
+        if msg.get_showpadlock() { "🔒" } else { "" },
+        if msg.has_location() { "📍" } else { "" },
         &contact_name,
         contact_id,
-        as_str(msgtext),
-        if dc_msg_is_starred(msg) { "★" } else { "" },
-        if dc_msg_get_from_id(msg) == 1 as libc::c_uint {
+        msgtext.unwrap_or_default(),
+        if msg.is_starred() { "★" } else { "" },
+        if msg.get_from_id() == 1 as libc::c_uint {
             ""
-        } else if dc_msg_get_state(msg) == MessageState::InSeen {
+        } else if msg.get_state() == MessageState::InSeen {
             "[SEEN]"
-        } else if dc_msg_get_state(msg) == MessageState::InNoticed {
+        } else if msg.get_state() == MessageState::InNoticed {
             "[NOTICED]"
         } else {
             "[FRESH]"
         },
-        if dc_msg_is_info(msg) { "[INFO]" } else { "" },
+        if msg.is_info() { "[INFO]" } else { "" },
+        if msg.is_forwarded() {
+            "[FORWARDED]"
+        } else {
+            ""
+        },
         statestr,
         &temp2,
     );
-    free(msgtext as *mut libc::c_void);
 }
 
-unsafe fn log_msglist(context: &Context, msglist: &Vec<u32>) -> Result<(), Error> {
+fn log_msglist(context: &Context, msglist: &Vec<MsgId>) -> Result<(), Error> {
     let mut lines_out = 0;
     for &msg_id in msglist {
-        if msg_id == 9 as libc::c_uint {
-            info!(
-                context,
+        if msg_id.is_daymarker() {
+            println!(
                 "--------------------------------------------------------------------------------"
             );
 
             lines_out += 1
-        } else if msg_id > 0 {
+        } else if !msg_id.is_special() {
             if lines_out == 0 {
-                info!(
-                    context,
+                println!(
                     "--------------------------------------------------------------------------------",
                 );
                 lines_out += 1
             }
-            let msg = dc_get_msg(context, msg_id)?;
-            log_msg(context, "Msg", &msg);
+            let msg = Message::load_from_db(context, msg_id)?;
+            log_msg(context, "", &msg);
         }
     }
     if lines_out > 0 {
-        info!(
-            context,
+        println!(
             "--------------------------------------------------------------------------------"
         );
     }
     Ok(())
 }
 
-unsafe fn log_contactlist(context: &Context, contacts: &Vec<u32>) {
+fn log_contactlist(context: &Context, contacts: &Vec<u32>) {
     let mut contacts = contacts.clone();
     if !contacts.contains(&1) {
         contacts.push(1);
@@ -334,7 +288,7 @@ unsafe fn log_contactlist(context: &Context, contacts: &Vec<u32>) {
                 );
             }
 
-            info!(context, "Contact#{}: {}{}", contact_id, line, line2);
+            println!("Contact#{}: {}{}", contact_id, line, line2);
         }
     }
 }
@@ -343,9 +297,9 @@ fn chat_prefix(chat: &Chat) -> &'static str {
     chat.typ.into()
 }
 
-pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::Error> {
+pub fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::Error> {
     let chat_id = *context.cmdline_sel_chat_id.read().unwrap();
-    let mut sel_chat = if chat_id > 0 {
+    let mut sel_chat = if !chat_id.is_unset() {
         Chat::load_from_db(context, chat_id).ok()
     } else {
         None
@@ -354,18 +308,9 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
     let mut args = line.splitn(3, ' ');
     let arg0 = args.next().unwrap_or_default();
     let arg1 = args.next().unwrap_or_default();
-    let arg1_c = if arg1.is_empty() {
-        std::ptr::null()
-    } else {
-        arg1.strdup() as *const _
-    };
     let arg2 = args.next().unwrap_or_default();
-    let arg2_c = if arg2.is_empty() {
-        std::ptr::null()
-    } else {
-        arg2.strdup() as *const _
-    };
 
+    let blobdir = context.get_blobdir();
     match arg0 {
         "help" | "?" => match arg1 {
             // TODO: reuse commands definition in main.rs.
@@ -396,6 +341,7 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
                  configure\n\
                  connect\n\
                  disconnect\n\
+                 interrupt\n\
                  maybenetwork\n\
                  housekeeping\n\
                  help imex (Import/Export)\n\
@@ -421,6 +367,7 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
                  sendimage <file> [<text>]\n\
                  sendfile <file> [<text>]\n\
                  draft [<text>]\n\
+                 devicemsg <text>\n\
                  listmedia\n\
                  archive <chat-id>\n\
                  unarchive <chat-id>\n\
@@ -447,37 +394,32 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
                  checkqr <qr-content>\n\
                  event <event-id to test>\n\
                  fileinfo <file>\n\
+                 emptyserver <flags> (1=MVBOX 2=INBOX)\n\
                  clear -- clear screen\n\
                  exit or quit\n\
                  ============================================="
             ),
         },
-        "initiate-key-transfer" => {
-            let setup_code = dc_initiate_key_transfer(context);
-            if !setup_code.is_null() {
-                println!(
-                    "Setup code for the transferred setup message: {}",
-                    as_str(setup_code),
-                );
-                free(setup_code as *mut libc::c_void);
-            } else {
-                bail!("Failed to generate setup code");
-            };
-        }
+        "initiate-key-transfer" => match initiate_key_transfer(context) {
+            Ok(setup_code) => println!(
+                "Setup code for the transferred setup message: {}",
+                setup_code,
+            ),
+            Err(err) => bail!("Failed to generate setup code: {}", err),
+        },
         "get-setupcodebegin" => {
             ensure!(!arg1.is_empty(), "Argument <msg-id> missing.");
-            let msg_id: u32 = arg1.parse()?;
-            let msg = dc_get_msg(context, msg_id)?;
-            if dc_msg_is_setupmessage(&msg) {
-                let setupcodebegin = dc_msg_get_setupcodebegin(context, &msg);
+            let msg_id: MsgId = MsgId::new(arg1.parse()?);
+            let msg = Message::load_from_db(context, msg_id)?;
+            if msg.is_setupmessage() {
+                let setupcodebegin = msg.get_setupcodebegin(context);
                 println!(
-                    "The setup code for setup message Msg#{} starts with: {}",
+                    "The setup code for setup message {} starts with: {}",
                     msg_id,
-                    as_str(setupcodebegin),
+                    setupcodebegin.unwrap_or_default(),
                 );
-                free(setupcodebegin as *mut libc::c_void);
             } else {
-                bail!("Msg#{} is no setup message.", msg_id,);
+                bail!("{} is no setup message.", msg_id,);
             }
         }
         "continue-key-transfer" => {
@@ -485,33 +427,28 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
                 !arg1.is_empty() && !arg2.is_empty(),
                 "Arguments <msg-id> <setup-code> expected"
             );
-            if !dc_continue_key_transfer(context, arg1.parse()?, arg2_c) {
-                bail!("Continue key transfer failed");
-            }
+            continue_key_transfer(context, MsgId::new(arg1.parse()?), &arg2)?;
         }
         "has-backup" => {
-            let ret = dc_imex_has_backup(context, context.get_blobdir());
-            if ret.is_null() {
-                println!("No backup found.");
-            }
+            has_backup(context, blobdir)?;
         }
         "export-backup" => {
-            dc_imex(context, 11, Some(context.get_blobdir()), ptr::null());
+            imex(context, ImexMode::ExportBackup, Some(blobdir));
         }
         "import-backup" => {
             ensure!(!arg1.is_empty(), "Argument <backup-file> missing.");
-            dc_imex(context, 12, Some(arg1), ptr::null());
+            imex(context, ImexMode::ImportBackup, Some(arg1));
         }
         "export-keys" => {
-            dc_imex(context, 1, Some(context.get_blobdir()), ptr::null());
+            imex(context, ImexMode::ExportSelfKeys, Some(blobdir));
         }
         "import-keys" => {
-            dc_imex(context, 2, Some(context.get_blobdir()), ptr::null());
+            imex(context, ImexMode::ImportSelfKeys, Some(blobdir));
         }
         "export-setup" => {
-            let setup_code = dc_create_setup_code(context);
-            let file_name = context.get_blobdir().join("autocrypt-setup-message.html");
-            let file_content = dc_render_setup_file(context, &setup_code)?;
+            let setup_code = create_setup_code(context);
+            let file_name = blobdir.join("autocrypt-setup-message.html");
+            let file_content = render_setup_file(context, &setup_code)?;
             std::fs::write(&file_name, file_content)?;
             println!(
                 "Setup message written to: {}\nSetup code: {}",
@@ -520,7 +457,7 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
             );
         }
         "poke" => {
-            ensure!(0 != poke_spec(context, arg1_c), "Poke failed");
+            ensure!(0 != poke_spec(context, Some(arg1)), "Poke failed");
         }
         "reset" => {
             ensure!(!arg1.is_empty(), "Argument <bits> missing: 1=jobs, 2=peerstates, 4=private keys, 8=rest but server config");
@@ -529,7 +466,7 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
             ensure!(0 != dc_reset_tables(context, bits), "Reset failed");
         }
         "stop" => {
-            dc_stop_ongoing_process(context);
+            context.stop_ongoing();
         }
         "set" => {
             ensure!(!arg1.is_empty(), "Argument <key> missing.");
@@ -546,6 +483,9 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
         "info" => {
             println!("{:#?}", context.get_info());
         }
+        "interrupt" => {
+            interrupt_inbox_idle(context);
+        }
         "maybenetwork" => {
             maybe_network(context);
         }
@@ -563,22 +503,17 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
 
             let cnt = chatlist.len();
             if cnt > 0 {
-                info!(
-                    context,
+                println!(
                     "================================================================================"
                 );
 
                 for i in (0..cnt).rev() {
                     let chat = Chat::load_from_db(context, chatlist.get_chat_id(i))?;
-                    let temp_subtitle = chat.get_subtitle(context);
-                    let temp_name = chat.get_name();
-                    info!(
-                        context,
-                        "{}#{}: {} [{}] [{} fresh]",
+                    println!(
+                        "{}#{}: {} [{} fresh]",
                         chat_prefix(&chat),
                         chat.get_id(),
-                        temp_name,
-                        temp_subtitle,
+                        chat.get_name(),
                         chat::get_fresh_msg_cnt(context, chat.get_id()),
                     );
                     let lot = chatlist.get_summary(context, i, Some(&chat));
@@ -596,8 +531,7 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
                     let timestr = dc_timestamp_to_str(lot.get_timestamp());
                     let text1 = lot.get_text1();
                     let text2 = lot.get_text2();
-                    info!(
-                        context,
+                    println!(
                         "{}{}{}{} [{}]{}",
                         text1.unwrap_or(""),
                         if text1.is_some() { ": " } else { "" },
@@ -610,14 +544,13 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
                             ""
                         },
                     );
-                    info!(
-                        context,
+                    println!(
                         "================================================================================"
                     );
                 }
             }
-            if location::is_sending_locations_to_chat(context, 0) {
-                info!(context, "Location streaming enabled.");
+            if location::is_sending_locations_to_chat(context, ChatId::new(0)) {
+                println!("Location streaming enabled.");
             }
             println!("{} chats", cnt);
         }
@@ -626,8 +559,8 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
                 bail!("Argument [chat-id] is missing.");
             }
             if !arg1.is_empty() {
-                let chat_id = arg1.parse()?;
-                println!("Selecting chat #{}", chat_id);
+                let chat_id = ChatId::new(arg1.parse()?);
+                println!("Selecting chat {}", chat_id);
                 sel_chat = Some(Chat::load_from_db(context, chat_id)?);
                 *context.cmdline_sel_chat_id.write().unwrap() = chat_id;
             }
@@ -635,21 +568,34 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
             ensure!(sel_chat.is_some(), "Failed to select chat");
             let sel_chat = sel_chat.as_ref().unwrap();
 
-            let msglist = chat::get_chat_msgs(context, sel_chat.get_id(), 0x1, 0);
-            let temp2 = sel_chat.get_subtitle(context);
-            let temp_name = sel_chat.get_name();
-            info!(
-                context,
-                "{}#{}: {} [{}]{}",
+            let msglist = chat::get_chat_msgs(context, sel_chat.get_id(), 0x1, None);
+            let members = chat::get_chat_contacts(context, sel_chat.id);
+            let subtitle = if sel_chat.is_device_talk() {
+                "device-talk".to_string()
+            } else if sel_chat.get_type() == Chattype::Single && !members.is_empty() {
+                let contact = Contact::get_by_id(context, members[0])?;
+                contact.get_addr().to_string()
+            } else {
+                format!("{} member(s)", members.len())
+            };
+            println!(
+                "{}#{}: {} [{}]{}{}",
                 chat_prefix(sel_chat),
                 sel_chat.get_id(),
-                temp_name,
-                temp2,
+                sel_chat.get_name(),
+                subtitle,
                 if sel_chat.is_sending_locations() {
                     "📍"
                 } else {
                     ""
                 },
+                match sel_chat.get_profile_image(context) {
+                    Some(icon) => match icon.to_str() {
+                        Some(icon) => format!(" Icon: {}", icon),
+                        _ => " Icon: Err".to_string(),
+                    },
+                    _ => "".to_string(),
+                },
             );
             log_msglist(context, &msglist)?;
             if let Some(draft) = chat::get_draft(context, sel_chat.get_id())? {
@@ -671,7 +617,7 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
         }
         "createchatbymsg" => {
             ensure!(!arg1.is_empty(), "Argument <msg-id> missing");
-            let msg_id: u32 = arg1.parse()?;
+            let msg_id = MsgId::new(arg1.parse()?);
             let chat_id = chat::create_by_msg_id(context, msg_id)?;
             let chat = Chat::load_from_db(context, chat_id)?;
 
@@ -735,7 +681,7 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
             ensure!(sel_chat.is_some(), "No chat selected.");
 
             let contacts = chat::get_chat_contacts(context, sel_chat.as_ref().unwrap().get_id());
-            info!(context, "Memberlist:");
+            println!("Memberlist:");
 
             log_contactlist(context, &contacts);
             println!(
@@ -761,9 +707,8 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
             let default_marker = "-".to_string();
             for location in &locations {
                 let marker = location.marker.as_ref().unwrap_or(&default_marker);
-                info!(
-                    context,
-                    "Loc#{}: {}: lat={} lng={} acc={} Chat#{} Contact#{} Msg#{} {}",
+                println!(
+                    "Loc#{}: {}: lat={} lng={} acc={} Chat#{} Contact#{} {} {}",
                     location.location_id,
                     dc_timestamp_to_str(location.timestamp),
                     location.latitude,
@@ -776,7 +721,7 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
                 );
             }
             if locations.is_empty() {
-                info!(context, "No locations.");
+                println!("No locations.");
             }
         }
         "sendlocations" => {
@@ -800,7 +745,7 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
             let longitude = arg2.parse()?;
 
             let continue_streaming = location::set(context, latitude, longitude, 0.);
-            if 0 != continue_streaming {
+            if continue_streaming {
                 println!("Success, streaming should be continued.");
             } else {
                 println!("Success, streaming can be stoppped.");
@@ -825,14 +770,14 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
             ensure!(sel_chat.is_some(), "No chat selected.");
             ensure!(!arg1.is_empty(), "No file given.");
 
-            let mut msg = dc_msg_new(if arg0 == "sendimage" {
+            let mut msg = Message::new(if arg0 == "sendimage" {
                 Viewtype::Image
             } else {
                 Viewtype::File
             });
-            dc_msg_set_file(&mut msg, arg1_c, ptr::null());
+            msg.set_file(arg1, None);
             if !arg2.is_empty() {
-                dc_msg_set_text(&mut msg, arg2_c);
+                msg.set_text(Some(arg2.to_string()));
             }
             chat::send_msg(context, sel_chat.as_ref().unwrap().get_id(), &mut msg)?;
         }
@@ -842,7 +787,7 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
             let chat = if let Some(ref sel_chat) = sel_chat {
                 sel_chat.get_id()
             } else {
-                0 as libc::c_uint
+                ChatId::new(0)
             };
 
             let msglist = context.search_msgs(chat, arg1);
@@ -854,8 +799,8 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
             ensure!(sel_chat.is_some(), "No chat selected.");
 
             if !arg1.is_empty() {
-                let mut draft = dc_msg_new(Viewtype::Text);
-                dc_msg_set_text(&mut draft, arg1_c);
+                let mut draft = Message::new(Viewtype::Text);
+                draft.set_text(Some(arg1.to_string()));
                 chat::set_draft(
                     context,
                     sel_chat.as_ref().unwrap().get_id(),
@@ -867,6 +812,18 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
                 println!("Draft deleted.");
             }
         }
+        "devicemsg" => {
+            ensure!(
+                !arg1.is_empty(),
+                "Please specify text to add as device message."
+            );
+            let mut msg = Message::new(Viewtype::Text);
+            msg.set_text(Some(arg1.to_string()));
+            chat::add_device_msg(context, None, Some(&mut msg))?;
+        }
+        "updatedevicechats" => {
+            context.update_device_chats()?;
+        }
         "listmedia" => {
             ensure!(sel_chat.is_some(), "No chat selected.");
 
@@ -880,32 +837,28 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
             println!("{} images or videos: ", images.len());
             for (i, data) in images.iter().enumerate() {
                 if 0 == i {
-                    print!("Msg#{}", data);
+                    print!("{}", data);
                 } else {
-                    print!(", Msg#{}", data);
+                    print!(", {}", data);
                 }
             }
             print!("\n");
         }
         "archive" | "unarchive" => {
             ensure!(!arg1.is_empty(), "Argument <chat-id> missing.");
-            let chat_id = arg1.parse()?;
-            chat::archive(
-                context,
-                chat_id,
-                if arg0 == "archive" { true } else { false },
-            )?;
+            let chat_id = ChatId::new(arg1.parse()?);
+            chat::archive(context, chat_id, arg0 == "archive")?;
         }
         "delchat" => {
             ensure!(!arg1.is_empty(), "Argument <chat-id> missing.");
-            let chat_id = arg1.parse()?;
+            let chat_id = ChatId::new(arg1.parse()?);
             chat::delete(context, chat_id)?;
         }
         "msginfo" => {
             ensure!(!arg1.is_empty(), "Argument <msg-id> missing.");
-            let id = arg1.parse()?;
-            let res = dc_get_msg_info(context, id);
-            println!("{}", as_str(res));
+            let id = MsgId::new(arg1.parse()?);
+            let res = message::get_msg_info(context, id);
+            println!("{}", res);
         }
         "listfresh" => {
             let msglist = context.get_fresh_msgs();
@@ -915,37 +868,32 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
         }
         "forward" => {
             ensure!(
-                !arg1.is_empty() && arg2.is_empty(),
+                !arg1.is_empty() && !arg2.is_empty(),
                 "Arguments <msg-id> <chat-id> expected"
             );
 
-            let mut msg_ids = [0; 1];
-            let chat_id = arg2.parse()?;
-            msg_ids[0] = arg1.parse()?;
-            chat::forward_msgs(context, msg_ids.as_mut_ptr(), 1, chat_id);
+            let mut msg_ids = [MsgId::new(0); 1];
+            let chat_id = ChatId::new(arg2.parse()?);
+            msg_ids[0] = MsgId::new(arg1.parse()?);
+            chat::forward_msgs(context, &msg_ids, chat_id)?;
         }
         "markseen" => {
             ensure!(!arg1.is_empty(), "Argument <msg-id> missing.");
-            let mut msg_ids = [0; 1];
-            msg_ids[0] = arg1.parse()?;
-            dc_markseen_msgs(context, msg_ids.as_mut_ptr(), 1);
+            let mut msg_ids = [MsgId::new(0); 1];
+            msg_ids[0] = MsgId::new(arg1.parse()?);
+            message::markseen_msgs(context, &msg_ids);
         }
         "star" | "unstar" => {
             ensure!(!arg1.is_empty(), "Argument <msg-id> missing.");
-            let mut msg_ids = [0; 1];
-            msg_ids[0] = arg1.parse()?;
-            dc_star_msgs(
-                context,
-                msg_ids.as_mut_ptr(),
-                1,
-                if arg0 == "star" { 1 } else { 0 },
-            );
+            let mut msg_ids = [MsgId::new(0); 1];
+            msg_ids[0] = MsgId::new(arg1.parse()?);
+            message::star_msgs(context, &msg_ids, arg0 == "star");
         }
         "delmsg" => {
             ensure!(!arg1.is_empty(), "Argument <msg-id> missing.");
-            let mut ids = [0; 1];
-            ids[0] = arg1.parse()?;
-            dc_delete_msgs(context, ids.as_mut_ptr(), 1);
+            let mut ids = [MsgId::new(0); 1];
+            ids[0] = MsgId::new(arg1.parse()?);
+            message::delete_msgs(context, &ids);
         }
         "listcontacts" | "contacts" | "listverified" => {
             let contacts = Contact::get_all(
@@ -977,7 +925,14 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
             let contact = Contact::get_by_id(context, contact_id)?;
             let name_n_addr = contact.get_name_n_addr();
 
-            let mut res = format!("Contact info for: {}:\n\n", name_n_addr);
+            let mut res = format!(
+                "Contact info for: {}:\nIcon: {}\n",
+                name_n_addr,
+                match contact.get_profile_image(context) {
+                    Some(image) => image.to_str().unwrap().to_string(),
+                    None => "NoIcon".to_string(),
+                }
+            );
 
             res += &Contact::get_encrinfo(context, contact_id)?;
 
@@ -1028,19 +983,21 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
         "fileinfo" => {
             ensure!(!arg1.is_empty(), "Argument <file> missing.");
 
-            if let Some(buf) = dc_read_file_safe(context, &arg1) {
+            if let Ok(buf) = dc_read_file(context, &arg1) {
                 let (width, height) = dc_get_filemeta(&buf)?;
                 println!("width={}, height={}", width, height);
             } else {
                 bail!("Command failed.");
             }
         }
+        "emptyserver" => {
+            ensure!(!arg1.is_empty(), "Argument <flags> missing");
+
+            message::dc_empty_server(context, arg1.parse()?);
+        }
         "" => (),
         _ => bail!("Unknown command: \"{}\" type ? for help.", arg0),
     }
 
-    free(arg1_c as *mut _);
-    free(arg2_c as *mut _);
-
     Ok(())
 }

examples/repl/main.rs

@@ -20,14 +20,13 @@ use std::process::Command;
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::{Arc, Mutex, RwLock};
 
+use deltachat::chat::ChatId;
 use deltachat::config;
 use deltachat::configure::*;
 use deltachat::context::*;
-use deltachat::dc_tools::*;
 use deltachat::job::*;
 use deltachat::oauth2::*;
 use deltachat::securejoin::*;
-use deltachat::x::*;
 use deltachat::Event;
 use rustyline::completion::{Completer, FilenameCompleter, Pair};
 use rustyline::config::OutputStreamType;
@@ -43,9 +42,8 @@ use self::cmdline::*;
 
 // Event Handler
 
-fn receive_event(_context: &Context, event: Event) -> libc::uintptr_t {
+fn receive_event(_context: &Context, event: Event) {
     match event {
-        Event::GetString { .. } => {}
         Event::Info(msg) => {
             /* do not show the event as this would fill the screen */
             println!("{}", msg);
@@ -114,8 +112,6 @@ fn receive_event(_context: &Context, event: Event) -> libc::uintptr_t {
             print!("\x1b[33m{{Received {:?}}}\n\x1b[0m", event);
         }
     }
-
-    0
 }
 
 // Threads for waiting for messages and for jobs
@@ -153,11 +149,11 @@ fn start_threads(c: Arc<RwLock<Context>>) {
     let ctx = c.clone();
     let handle_imap = std::thread::spawn(move || loop {
         while_running!({
-            perform_imap_jobs(&ctx.read().unwrap());
-            perform_imap_fetch(&ctx.read().unwrap());
+            perform_inbox_jobs(&ctx.read().unwrap());
+            perform_inbox_fetch(&ctx.read().unwrap());
             while_running!({
                 let context = ctx.read().unwrap();
-                perform_imap_idle(&context);
+                perform_inbox_idle(&context);
             });
         });
     });
@@ -205,7 +201,7 @@ fn stop_threads(context: &Context) {
         println!("Stopping threads");
         IS_RUNNING.store(false, Ordering::Relaxed);
 
-        interrupt_imap_idle(context);
+        interrupt_inbox_idle(context);
         interrupt_mvbox_idle(context);
         interrupt_sentbox_idle(context);
         interrupt_smtp_idle(context);
@@ -238,7 +234,7 @@ impl Completer for DcHelper {
     }
 }
 
-const IMEX_COMMANDS: [&'static str; 12] = [
+const IMEX_COMMANDS: [&str; 12] = [
     "initiate-key-transfer",
     "get-setupcodebegin",
     "continue-key-transfer",
@@ -253,7 +249,7 @@ const IMEX_COMMANDS: [&'static str; 12] = [
     "stop",
 ];
 
-const DB_COMMANDS: [&'static str; 11] = [
+const DB_COMMANDS: [&str; 11] = [
     "info",
     "open",
     "close",
@@ -267,7 +263,7 @@ const DB_COMMANDS: [&'static str; 11] = [
     "housekeeping",
 ];
 
-const CHAT_COMMANDS: [&'static str; 24] = [
+const CHAT_COMMANDS: [&str; 24] = [
     "listchats",
     "listarchived",
     "chat",
@@ -293,7 +289,7 @@ const CHAT_COMMANDS: [&'static str; 24] = [
     "unarchive",
     "delchat",
 ];
-const MESSAGE_COMMANDS: [&'static str; 8] = [
+const MESSAGE_COMMANDS: [&str; 8] = [
     "listmsgs",
     "msginfo",
     "listfresh",
@@ -303,7 +299,7 @@ const MESSAGE_COMMANDS: [&'static str; 8] = [
     "unstar",
     "delmsg",
 ];
-const CONTACT_COMMANDS: [&'static str; 6] = [
+const CONTACT_COMMANDS: [&str; 6] = [
     "listcontacts",
     "listverified",
     "addcontact",
@@ -311,7 +307,7 @@ const CONTACT_COMMANDS: [&'static str; 6] = [
     "delcontact",
     "cleanupcontacts",
 ];
-const MISC_COMMANDS: [&'static str; 9] = [
+const MISC_COMMANDS: [&str; 9] = [
     "getqr", "getbadqr", "checkqr", "event", "fileinfo", "clear", "exit", "quit", "help",
 ];
 
@@ -337,8 +333,8 @@ impl Hinter for DcHelper {
     }
 }
 
-static COLORED_PROMPT: &'static str = "\x1b[1;32m> \x1b[0m";
-static PROMPT: &'static str = "> ";
+static COLORED_PROMPT: &str = "\x1b[1;32m> \x1b[0m";
+static PROMPT: &str = "> ";
 
 impl Highlighter for DcHelper {
     fn highlight_prompt<'p>(&self, prompt: &'p str) -> Cow<'p, str> {
@@ -406,7 +402,7 @@ fn main_0(args: Vec<String>) -> Result<(), failure::Error> {
                 // TODO: ignore "set mail_pw"
                 rl.add_history_entry(line.as_str());
                 let ctx = ctx.clone();
-                match unsafe { handle_cmd(line.trim(), ctx) } {
+                match handle_cmd(line.trim(), ctx) {
                     Ok(ExitResult::Continue) => {}
                     Ok(ExitResult::Exit) => break,
                     Err(err) => println!("Error: {}", err),
@@ -437,15 +433,10 @@ enum ExitResult {
     Exit,
 }
 
-unsafe fn handle_cmd(line: &str, ctx: Arc<RwLock<Context>>) -> Result<ExitResult, failure::Error> {
+fn handle_cmd(line: &str, ctx: Arc<RwLock<Context>>) -> Result<ExitResult, failure::Error> {
     let mut args = line.splitn(2, ' ');
     let arg0 = args.next().unwrap_or_default();
     let arg1 = args.next().unwrap_or_default();
-    let arg1_c = if arg1.is_empty() {
-        std::ptr::null()
-    } else {
-        arg1.strdup()
-    };
 
     match arg0 {
         "connect" => {
@@ -463,9 +454,9 @@ unsafe fn handle_cmd(line: &str, ctx: Arc<RwLock<Context>>) -> Result<ExitResult
         }
         "imap-jobs" => {
             if HANDLE.clone().lock().unwrap().is_some() {
-                println!("imap-jobs are already running in a thread.");
+                println!("inbox-jobs are already running in a thread.");
             } else {
-                perform_imap_jobs(&ctx.read().unwrap());
+                perform_inbox_jobs(&ctx.read().unwrap());
             }
         }
         "configure" => {
@@ -494,9 +485,10 @@ unsafe fn handle_cmd(line: &str, ctx: Arc<RwLock<Context>>) -> Result<ExitResult
         }
         "getqr" | "getbadqr" => {
             start_threads(ctx.clone());
-            if let Some(mut qr) =
-                dc_get_securejoin_qr(&ctx.read().unwrap(), arg1.parse().unwrap_or_default())
-            {
+            if let Some(mut qr) = dc_get_securejoin_qr(
+                &ctx.read().unwrap(),
+                ChatId::new(arg1.parse().unwrap_or_default()),
+            ) {
                 if !qr.is_empty() {
                     if arg0 == "getbadqr" && qr.len() > 40 {
                         qr.replace_range(12..22, "0000000000")
@@ -521,8 +513,6 @@ unsafe fn handle_cmd(line: &str, ctx: Arc<RwLock<Context>>) -> Result<ExitResult
         _ => dc_cmdline(&ctx.read().unwrap(), line)?,
     }
 
-    free(arg1_c as *mut _);
-
     Ok(ExitResult::Continue)
 }
 

examples/simple.rs

@@ -11,117 +11,102 @@ use deltachat::configure::*;
 use deltachat::contact::*;
 use deltachat::context::*;
 use deltachat::job::{
-    perform_imap_fetch, perform_imap_idle, perform_imap_jobs, perform_smtp_idle, perform_smtp_jobs,
+    perform_inbox_fetch, perform_inbox_idle, perform_inbox_jobs, perform_smtp_idle,
+    perform_smtp_jobs,
 };
 use deltachat::Event;
 
-fn cb(_ctx: &Context, event: Event) -> usize {
+fn cb(_ctx: &Context, event: Event) {
     print!("[{:?}]", event);
 
     match event {
         Event::ConfigureProgress(progress) => {
             print!("  progress: {}\n", progress);
-            0
         }
         Event::Info(msg) | Event::Warning(msg) | Event::Error(msg) | Event::ErrorNetwork(msg) => {
             print!("  {}\n", msg);
-            0
         }
         _ => {
             print!("\n");
-            0
         }
     }
 }
 
 fn main() {
-    unsafe {
-        let dir = tempdir().unwrap();
-        let dbfile = dir.path().join("db.sqlite");
-        println!("creating database {:?}", dbfile);
-        let ctx =
-            Context::new(Box::new(cb), "FakeOs".into(), dbfile).expect("Failed to create context");
-        let running = Arc::new(RwLock::new(true));
-        let info = ctx.get_info();
-        let duration = time::Duration::from_millis(4000);
-        println!("info: {:#?}", info);
+    let dir = tempdir().unwrap();
+    let dbfile = dir.path().join("db.sqlite");
+    println!("creating database {:?}", dbfile);
+    let ctx =
+        Context::new(Box::new(cb), "FakeOs".into(), dbfile).expect("Failed to create context");
+    let running = Arc::new(RwLock::new(true));
+    let info = ctx.get_info();
+    let duration = time::Duration::from_millis(4000);
+    println!("info: {:#?}", info);
+
+    let ctx = Arc::new(ctx);
+    let ctx1 = ctx.clone();
+    let r1 = running.clone();
+    let t1 = thread::spawn(move || {
+        while *r1.read().unwrap() {
+            perform_inbox_jobs(&ctx1);
+            if *r1.read().unwrap() {
+                perform_inbox_fetch(&ctx1);
 
-        let ctx = Arc::new(ctx);
-        let ctx1 = ctx.clone();
-        let r1 = running.clone();
-        let t1 = thread::spawn(move || {
-            while *r1.read().unwrap() {
-                perform_imap_jobs(&ctx1);
                 if *r1.read().unwrap() {
-                    perform_imap_fetch(&ctx1);
-
-                    if *r1.read().unwrap() {
-                        perform_imap_idle(&ctx1);
-                    }
+                    perform_inbox_idle(&ctx1);
                 }
             }
-        });
-
-        let ctx1 = ctx.clone();
-        let r1 = running.clone();
-        let t2 = thread::spawn(move || {
-            while *r1.read().unwrap() {
-                perform_smtp_jobs(&ctx1);
-                if *r1.read().unwrap() {
-                    perform_smtp_idle(&ctx1);
-                }
-            }
-        });
-
-        println!("configuring");
-        let args = std::env::args().collect::<Vec<String>>();
-        assert_eq!(args.len(), 2, "missing password");
-        let pw = args[1].clone();
-        ctx.set_config(config::Config::Addr, Some("d@testrun.org"))
-            .unwrap();
-        ctx.set_config(config::Config::MailPw, Some(&pw)).unwrap();
-        configure(&ctx);
-
-        thread::sleep(duration);
-
-        println!("sending a message");
-        let contact_id =
-            Contact::create(&ctx, "dignifiedquire", "dignifiedquire@gmail.com").unwrap();
-        let chat_id = chat::create_by_contact_id(&ctx, contact_id).unwrap();
-        chat::send_text_msg(&ctx, chat_id, "Hi, here is my first message!".into()).unwrap();
-
-        println!("fetching chats..");
-        let chats = Chatlist::try_load(&ctx, 0, None, None).unwrap();
-
-        for i in 0..chats.len() {
-            let summary = chats.get_summary(&ctx, 0, None);
-            let text1 = summary.get_text1();
-            let text2 = summary.get_text2();
-            println!("chat: {} - {:?} - {:?}", i, text1, text2,);
         }
+    });
 
-        thread::sleep(duration);
+    let ctx1 = ctx.clone();
+    let r1 = running.clone();
+    let t2 = thread::spawn(move || {
+        while *r1.read().unwrap() {
+            perform_smtp_jobs(&ctx1);
+            if *r1.read().unwrap() {
+                perform_smtp_idle(&ctx1);
+            }
+        }
+    });
 
-        // let msglist = dc_get_chat_msgs(&ctx, chat_id, 0, 0);
-        // for i in 0..dc_array_get_cnt(msglist) {
-        //     let msg_id = dc_array_get_id(msglist, i);
-        //     let msg = dc_get_msg(context, msg_id);
-        //     let text = CStr::from_ptr(dc_msg_get_text(msg)).unwrap();
-        //     println!("Message {}: {}\n", i + 1, text.to_str().unwrap());
-        //     dc_msg_unref(msg);
-        // }
-        // dc_array_unref(msglist);
+    println!("configuring");
+    let args = std::env::args().collect::<Vec<String>>();
+    assert_eq!(args.len(), 2, "missing password");
+    let pw = args[1].clone();
+    ctx.set_config(config::Config::Addr, Some("d@testrun.org"))
+        .unwrap();
+    ctx.set_config(config::Config::MailPw, Some(&pw)).unwrap();
+    configure(&ctx);
 
-        println!("stopping threads");
+    thread::sleep(duration);
 
-        *running.clone().write().unwrap() = false;
-        deltachat::job::interrupt_imap_idle(&ctx);
-        deltachat::job::interrupt_smtp_idle(&ctx);
+    println!("sending a message");
+    let contact_id = Contact::create(&ctx, "dignifiedquire", "dignifiedquire@gmail.com").unwrap();
+    let chat_id = chat::create_by_contact_id(&ctx, contact_id).unwrap();
+    chat::send_text_msg(&ctx, chat_id, "Hi, here is my first message!".into()).unwrap();
 
-        println!("joining");
-        t1.join().unwrap();
-        t2.join().unwrap();
+    println!("fetching chats..");
+    let chats = Chatlist::try_load(&ctx, 0, None, None).unwrap();
 
-        println!("closing");
+    for i in 0..chats.len() {
+        let summary = chats.get_summary(&ctx, 0, None);
+        let text1 = summary.get_text1();
+        let text2 = summary.get_text2();
+        println!("chat: {} - {:?} - {:?}", i, text1, text2,);
     }
+
+    thread::sleep(duration);
+
+    println!("stopping threads");
+
+    *running.write().unwrap() = false;
+    deltachat::job::interrupt_inbox_idle(&ctx);
+    deltachat::job::interrupt_smtp_idle(&ctx);
+
+    println!("joining");
+    t1.join().unwrap();
+    t2.join().unwrap();
+
+    println!("closing");
 }

proptest-regressions/dc_mimeparser.txt

@@ -0,0 +1,7 @@
+# Seeds for failure cases proptest has generated in the past. It is
+# automatically read and these particular cases re-run before any
+# novel cases are generated.
+#
+# It is recommended to check this file in to source control so that
+# everyone who runs the test benefits from these saved cases.
+cc 03cab93c6d1f3a8245f63cf84dacb307944294fe6333c1e38f078a6600659c7a # shrinks to data = "a\t0aA\ta\t0 \ta\t0 \ta a\t\ta  A\tAA0a0a 0\t a\t aA   \t a\t  A0\t  AAa\taA0\taAAaA\t0\taa0a\ta Aa Aaaa A0A\t  a aA 0\t  A\t0\t0\t\t\t\t\t\tA \t\t a\tA Aa aAA0A0AA0aaA A\t\t  aa0\ta\t  \tAa\taA\t00  AA  A a\tA a aAAa \t 00\t0 \t\t  a A  0\t\t\t aAA Aa \taAAAA0a A0A\t\t1\\E$\t$R\tc\t^=\t\"\tQ<Uk\t\t>A\t\t&\t}v&\tM^\'|\tW5?dn\t\t+\t\tP\te`\t\t>:Brlq--?\t$#Q\tK=zJ\tb\"9*.\"\t`\tF&T*\tBs,\tg\'*\\\t:\t?l$\t\t|A\"HR:Hk\t\\KkV\t\t{=&!^e%:|_*0wV\t[$`\t:\t$%f\t\t[!\"Y. \tP\t\th\'?\'/?%:++NfQo#@\"+?\t(\\??{\t\'\'$Dzj\t0.?{s4?&?Y=/yj]Z=\t4n\t?Ja\"\t{I\t$\t;I}_8V\t&\t?N\'\tI2/\t9.\tFT%9%`\'\tz\to7Y\t|AXP&@G12g\t\'w\t\t%??\t\"h$?F\"\"6%q\\\\{\tT\t\"]$87$}h\'\t<\t$\tc%U:mT2:<v\t#Rl!;U\t\t\"^D\tRZ(BZ{n\t%[$fgH`\t{B}:*\t\t%%*F`%W\t//B}PQ\t\tsu2\tLz<1*!p-X\tnKv&&0\thm4<n\\.\\/.w\'\t<)E1g3#ood\t`?\t\\({N?,8_?h\ty\t0%\t*$A\t\t*w-ViQUj\tTiH\t%\t%&0p\'\'\tA%r**Fo\'Z\\\tNI*ely4=I?}$.o`\t$\ts\'&lt\t\",:~=Nv/0O%=+<LS\t%P\'\t$r%d.\t{G{/L:\t&I&8-`cy*\"{\t/%fP9.P<\t\t\'/`\t\t`\t\t`!t:\t::\t\tW\'X^\t@.uL&a\tN\t\t\t.\t?0*\tvUK>UJ\\\tQbj%w]P=Js\t\"R\t&s^?</=%\t\'VI:\" kT`{b*<\t\tF&?Y\t\t:/\t!C\'e0`\t\t\tx-\t*\\N\\wwu.I4\tb/y\t\"P:P%\"\t\tQ][\\\t^x\t\t):\t\t&s\t$1-\t\t\tXt`0\t;\t/UeCP*\"G\t\t\':\tk@91Hf&#\t(Uzz&`p2;\t{]\t\"I_%=\\%,XD\"\'06QfCd<;$:q^\t8:\"*\"H\t\to\t&xK/\t\ty0/<}<j<|*`~::b\t=S.=}=Ki\t<Y.\'{\tf\t{Ub*H%(_4*?*\tn2\t/\'\t\t\t/,4]\tt\t<y\t\t\tWi\t\tT&\"\t\t\t\t\t=/1Wu?\t\'A\"W-P\t$?e\\\t`\t6`vD\t8`\t\tccD J\tY&jI//?_\t\\j\t_\tsiq$\t?9\tQ\t.^%&..?%Jm??A%+<\tN&*\t.g\tS$W\"\"\tMpq\t\t:&\\\thTz&<iz%/%T&\'F\t\\]&\t\t}\t\t\tXr=dtp`:+<,\t%60Y*<(&K*kJ\todO\t=<V?&\tMU/\"\t= Y!)<\tV\t9\t)\t&v8q{\t\t&pT\t3\ttB,qcq\'i$;gv%j_%M_{[\"&;\t\t\t.B;6Y\\%\t\"\tY/a\t\\`:?\t<\t?]\taNwD;\\\t%l*74%5T?QS :~yR/E*R\t\t=u\t\\\t\t.Q<;\\\t_S/{&F$^\tw_>\'h=|%\t\t:W!\\<U2\'$\tb&`\t=|=L9\t\t\t\\WZ:! }{\t ;\t;\t\t 0.*\t.%\"\'r%{<Mh_t[[}\t-\tJo\"b/AC*-=`=T\tz$2\tC\t\t/k{47\"\t\t,q%\tZ\tT3\t\tf>%\t\'?%@^tx\t7\"1Bk{b{n\t\"Pj3\tHc\t\tt\tY<\t#?\tSh\\yk/N\\\t8 7=R4*9Cw&m\t\\-\'f\t|\'#t(Etu.Hdu(E\t%&v:\'aqW~A5\t\t w.s{J%lX<\"\t\'*%m<&:/B<&\':U}$&`.{)\t\t6S\t:/$*kQ-Z\t^\'t${/tH*\'v\t3\t=\t\tDyp:B\t`I_R&4SO\t\t&-j=*.\t87&\'e*( \t\t\t\'<$\\DJ<$p?{}\'&\tv\t\\Xk<Y:Y`!$K{\tF&\tzd\t\t*i$\tj\'\t<)R*\t%?\t!.\t=\"@#~:=*\t\tXO=_T,1\"\'.%%\"`{\\:\t\"\tfkeOb/\'$I~\ta\t|&\t[\\KK\"1&Z\t<k\t\t)%\'-~\"2n\tj\tW?*<@w{g%d\ta\\\'\'I\t;:ySR%ke:4\tc\t$=\t&9P]x4\tJ=\t6C6%a\t`0\tF\tm-\tTr\t}\t\tQum\t&@\typ|w2&\t\t3`i&t\t\tT5\"\t.&b&e*/==1.\'*\\[U*\tqPL%?$-0/}~|q`\t\t}\t$\tq==o+T$\'!H\t\ti&um\"?\"%%\t/\'p\tg>?{0{J{\t\t/\t\t{zKZ&>=\t[\"1h<H%z/8,/]s\tv{7\t\t:j*H,M//\t\t\td\'.)\t"

proptest-regressions/dc_strencode.txt

@@ -5,3 +5,4 @@
 # It is recommended to check this file in to source control so that
 # everyone who runs the test benefits from these saved cases.
 cc 679506fe9ac59df773f8cfa800fdab5f0a32fe49d2ab370394000a1aa5bc2a72 # shrinks to buf = "%0A"
+cc e34960438edb2426904b44fb4215154e7e2880f2fd1c3183b98bfcc76fec4882 # shrinks to input = " 0"

python/CHANGELOG

@@ -1,6 +1,10 @@
-0.600.1
+0.700.0
 ---------
 
+- lots of new Python APIs
+
+- use rust core-beta23 
+
 - introduce automatic versioning via setuptools_scm, 
   based on py-X.Y.Z tags 
 

python/README.rst

@@ -3,89 +3,54 @@ deltachat python bindings
 =========================
 
 This package provides bindings to the deltachat-core_ Rust -library
-which provides imap/smtp/crypto handling as well as chat/group/messages
-handling to Android, Desktop and IO user interfaces.
-
-Installing pre-built packages (linux-only)
-==========================================
-
-If you have a linux system you may install the ``deltachat`` binary "wheel" package
-without any "build-from-source" steps.
-
-1. `Install virtualenv <https://virtualenv.pypa.io/en/stable/installation/>`_,
-   then create a fresh python environment and activate it in your shell::
-
-        virtualenv venv  # or: python -m venv
-        source venv/bin/activate
-
-   Afterwards, invoking ``python`` or ``pip install`` will only
-   modify files in your ``venv`` directory and leave your system installation
-   alone.
-
-2. Install the wheel for linux::
-
-        pip install deltachat
-
-    Verify it worked by typing::
-
-        python -c "import deltachat"
+which implements IMAP/SMTP/MIME/PGP e-mail standards and offers
+a low-level Chat/Contact/Message API to user interfaces and bots.
 
 
-Installing a wheel from a PR/branch
----------------------------------------
+Installing bindings from source (Updated: 20-Jan-2020)
+=========================================================
 
-For Linux, we automatically build wheels for all github PR branches
-and push them to a python package index. To install the latest github ``master`` branch::
+Install Rust and Cargo first.  Deltachat needs a specific nightly
+version, the easiest is probably to first install Rust stable from
+rustup and then use this to install the correct nightly version.
 
-    pip install -i https://m.devpi.net/dc/master deltachat
+Bootstrap Rust and Cargo by using rustup::
 
-.. note::
+   curl https://sh.rustup.rs -sSf | sh
 
-    If you can help to automate the building of wheels for Mac or Windows,
-    that'd be much appreciated! please then get
-    `in contact with us <https://delta.chat/en/contribute>`_.
+Then GIT clone the deltachat-core-rust repo and get the actual
+rust- and cargo-toolchain needed by deltachat::
 
+   git clone https://github.com/deltachat/deltachat-core-rust
+   cd deltachat-core-rust
+   rustup show
 
-Installing bindings from source
-===============================
+To install the Delta Chat Python bindings make sure you have Python3 installed.
+E.g. on Debian-based systems `apt install python3 python3-pip
+python3-venv` should give you a usable python installation.
 
-If you can't use "binary" method above then you need to compile
-to core deltachat library::
+Ensure you are in the deltachat-core-rust/python directory, create the
+virtual environment and activate it in your shell::
 
-    git clone https://github.com/deltachat/deltachat-core-rust
-    cd deltachat-core-rust
-    cd python
+   cd python
+   python3 -m venv venv  # or: virtualenv venv
+   source venv/bin/activate
 
-If you don't have one active, create and activate a python "virtualenv":
+You should now be able to build the python bindings using the supplied script::
 
-    python virtualenv venv  # or python -m venv
-    source venv/bin/activate
-
-Afterwards ``which python`` tells you that it comes out of the "venv"
-directory that contains all python install artifacts. Let's first
-install test tools::
-
-    pip install pytest pytest-timeout pytest-rerunfailures requests
-
-then cargo-build and install the deltachat bindings::
-
-    python install_python_bindings.py
+   ./install_python_bindings.py
 
+The installation might take a while, depending on your machine.
 The bindings will be installed in release mode but with debug symbols.
-The release mode is necessary because some tests generate RSA keys
-which is prohibitively slow in debug mode.
+The release mode is currently necessary because some tests generate RSA keys
+which is prohibitively slow in non-release mode.
 
-After successful binding installation you can finally run the tests::
+After successful binding installation you can install a few more
+Python packages before running the tests::
 
+    python -m pip install pytest pytest-timeout pytest-rerunfailures requests
     pytest -v tests
 
-.. note::
-
-    Some tests are sometimes failing/hanging because of
-    https://github.com/deltachat/deltachat-core-rust/issues/331
-    and
-    https://github.com/deltachat/deltachat-core-rust/issues/326
-
 
 running "live" tests (experimental)
 -----------------------------------
@@ -97,13 +62,45 @@ If you want to run "liveconfig" functional tests you can set
   chat devs.
 
 - or the path of a file that contains two lines, each describing
-  via "addr=... mail_pwd=..." a test account login that will
+  via "addr=... mail_pw=..." a test account login that will
   be used for the live tests.
 
 With ``DCC_PY_LIVECONFIG`` set pytest invocations will use real
 e-mail accounts and run through all functional "liveconfig" tests.
 
 
+Installing pre-built packages (Linux-only)
+========================================================
+
+If you have a Linux system you may try to install the ``deltachat`` binary "wheel" packages
+without any "build-from-source" steps.
+
+We suggest to `Install virtualenv <https://virtualenv.pypa.io/en/stable/installation/>`_,
+then create a fresh Python virtual environment and activate it in your shell::
+
+        virtualenv venv  # or: python -m venv
+        source venv/bin/activate
+
+Afterwards, invoking ``python`` or ``pip install`` only
+modifies files in your ``venv`` directory and leaves
+your system installation alone.
+
+For Linux, we automatically build wheels for all github PR branches
+and push them to a python package index. To install the latest
+github ``master`` branch::
+
+    pip install --pre -i https://m.devpi.net/dc/master deltachat
+
+To verify it worked::
+
+    python -c "import deltachat"
+
+.. note::
+
+    If you can help to automate the building of wheels for Mac or Windows,
+    that'd be much appreciated! please then get
+    `in contact with us <https://delta.chat/en/contribute>`_.
+
 
 Code examples
 =============
@@ -115,15 +112,11 @@ You may look at `examples <https://py.delta.chat/examples.html>`_.
 .. _`deltachat-core`: https://github.com/deltachat/deltachat-core-rust
 
 
-Building manylinux1 wheels
-==========================
-
-.. note::
-
-   This section may not fully work.
+Building manylinux1 based wheels
+================================
 
 Building portable manylinux1 wheels which come with libdeltachat.so
-and all it's dependencies is easy using the provided docker tooling.
+can be done with docker-tooling.
 
 using docker pull / premade images
 ------------------------------------
@@ -136,9 +129,9 @@ organization::
 
 This docker image can be used to run tests and build Python wheels for all interpreters::
 
-    $ bash ci_scripts/ci_run.sh
-
-This command runs tests and build-wheel scripts in a docker container.
+    $ docker run -e DCC_PY_LIVECONFIG \
+       --rm -it -v \$(pwd):/mnt -w /mnt \
+       deltachat/coredeps ci_scripts/run_all.sh
 
 
 Optionally build your own docker image

python/doc/_templates/globaltoc.html

@@ -6,7 +6,6 @@
   <li><a href="{{ pathto('install') }}">install</a></li>
   <li><a href="{{ pathto('api') }}">high level API</a></li>
   <li><a href="{{ pathto('lapi') }}">low level API</a></li>
-  <li><a href="{{ pathto('capi') }}">C deltachat.h</a></li>
 </ul>
 <b>external links:</b>
 <ul>

python/doc/api.rst

@@ -8,8 +8,8 @@ high level API reference
 
 - :class:`deltachat.account.Account` (your main entry point, creates the
   other classes)
-- :class:`deltachat.chatting.Contact`
-- :class:`deltachat.chatting.Chat`
+- :class:`deltachat.contact.Contact`
+- :class:`deltachat.chat.Chat`
 - :class:`deltachat.message.Message`
 
 Account
@@ -22,13 +22,13 @@ Account
 Contact
 -------
 
-.. autoclass:: deltachat.chatting.Contact
+.. autoclass:: deltachat.contact.Contact
     :members:
 
 Chat
 ----
 
-.. autoclass:: deltachat.chatting.Chat
+.. autoclass:: deltachat.chat.Chat
     :members:
 
 Message

python/doc/lapi.rst

@@ -2,7 +2,13 @@
 low level API reference
 ===================================
 
-for full C-docs, defines and function checkout :doc:`capi`
+for full doxygen-generated C-docs, defines and functions please checkout
+
+https://c.delta.chat
+
+
+Python low-level capi calls
+---------------------------
 
 
 .. automodule:: deltachat.capi.lib

python/install_python_bindings.py

@@ -6,20 +6,26 @@
 
 import os
 import subprocess
-import os
+import sys
 
 if __name__ == "__main__":
-    os.environ["DCC_RS_TARGET"] = target = "release"
+    target = os.environ.get("DCC_RS_TARGET")
+    if target is None:
+        os.environ["DCC_RS_TARGET"] = target = "release"
     if "DCC_RS_DEV" not in os.environ:
         dn = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
         os.environ["DCC_RS_DEV"] = dn
 
+    # build the core library  in release + debug mode because
+    # as of Nov 2019 rPGP generates RSA keys which take
+    # prohibitively long for non-release installs
     os.environ["RUSTFLAGS"] = "-g"
     subprocess.check_call([
         "cargo", "build", "-p", "deltachat_ffi", "--" + target
     ])
     subprocess.check_call("rm -rf build/ src/deltachat/*.so" , shell=True)
 
-    subprocess.check_call([
-        "pip", "install", "-e", "."
-    ])
+    if len(sys.argv) <= 1 or sys.argv[1] != "onlybuild":
+        subprocess.check_call([
+            sys.executable, "-m", "pip", "install", "-e", "."
+        ])

python/setup.py

@@ -13,6 +13,7 @@ def main():
             "root": "..",
             "relative_to": __file__,
             'tag_regex': r'^(?P<prefix>py-)?(?P<version>[^\+]+)(?P<suffix>.*)?$',
+            'git_describe_command': "git describe --dirty --tags --long --match py-*.*",
         },
         description='Python bindings for the Delta Chat Core library using CFFI against the Rust-implemented libdeltachat',
         long_description=long_description,

python/src/deltachat/_build.py

@@ -29,7 +29,10 @@ def ffibuilder():
             extra_link_args = []
         else:
             raise NotImplementedError("Compilation not supported yet on Windows, can you help?")
-        objs = [os.path.join(projdir, 'target', target, 'libdeltachat.a')]
+        target_dir = os.environ.get("CARGO_TARGET_DIR")
+        if target_dir is None:
+            target_dir = os.path.join(projdir, 'target')
+        objs = [os.path.join(target_dir, target, 'libdeltachat.a')]
         assert os.path.exists(objs[0]), objs
         incs = [os.path.join(projdir, 'deltachat-ffi')]
     else:

python/src/deltachat/account.py

@@ -1,6 +1,7 @@
 """ Account class implementation. """
 
 from __future__ import print_function
+import atexit
 import threading
 import os
 import re
@@ -15,15 +16,17 @@ import deltachat
 from . import const
 from .capi import ffi, lib
 from .cutil import as_dc_charpointer, from_dc_charpointer, iter_array, DCLot
-from .chatting import Contact, Chat, Message
+from .chat import Chat
+from .message import Message
+from .contact import Contact
 
 
 class Account(object):
     """ Each account is tied to a sqlite database file which is fully managed
-    by the underlying deltachat c-library.  All public Account methods are
+    by the underlying deltachat core library.  All public Account methods are
     meant to be memory-safe and return memory-safe objects.
     """
-    def __init__(self, db_path, logid=None, eventlogging=True):
+    def __init__(self, db_path, logid=None, eventlogging=True, os_name=None, debug=True):
         """ initialize account object.
 
         :param db_path: a path to the account database. The database
@@ -31,13 +34,15 @@ class Account(object):
         :param logid: an optional logging prefix that should be used with
                       the default internal logging.
         :param eventlogging: if False no eventlogging and no context callback will be configured
+        :param os_name: this will be put to the X-Mailer header in outgoing messages
+        :param debug: turn on debug logging for events.
         """
         self._dc_context = ffi.gc(
-            lib.dc_context_new(lib.py_dc_callback, ffi.NULL, ffi.NULL),
+            lib.dc_context_new(lib.py_dc_callback, ffi.NULL, as_dc_charpointer(os_name)),
             _destroy_dc_context,
         )
         if eventlogging:
-            self._evlogger = EventLogger(self._dc_context, logid)
+            self._evlogger = EventLogger(self._dc_context, logid, debug)
             deltachat.set_context_callback(self._dc_context, self._process_event)
             self._threads = IOThreads(self._dc_context, self._evlogger._log_event)
         else:
@@ -48,10 +53,11 @@ class Account(object):
         if not lib.dc_open(self._dc_context, db_path, ffi.NULL):
             raise ValueError("Could not dc_open: {}".format(db_path))
         self._configkeys = self.get_config("sys.config_keys").split()
-        self._imex_completed = threading.Event()
+        self._imex_events = Queue()
+        atexit.register(self.shutdown)
 
-    def __del__(self):
-        self.shutdown()
+    # def __del__(self):
+    #    self.shutdown()
 
     def _check_config_key(self, name):
         if name not in self._configkeys:
@@ -69,6 +75,18 @@ class Account(object):
             d[key.lower()] = value
         return d
 
+    def set_stock_translation(self, id, string):
+        """ set stock translation string.
+
+        :param id: id of stock string (const.DC_STR_*)
+        :param value: string to set as new transalation
+        :returns: None
+        """
+        string = string.encode("utf8")
+        res = lib.dc_set_stock_translation(self._dc_context, id, string)
+        if res == 0:
+            raise ValueError("could not set translation string")
+
     def set_config(self, name, value):
         """ set configuration values.
 
@@ -78,9 +96,12 @@ class Account(object):
         """
         self._check_config_key(name)
         name = name.encode("utf8")
-        value = value.encode("utf8")
         if name == b"addr" and self.is_configured():
             raise ValueError("can not change 'addr' after account is configured.")
+        if value is not None:
+            value = value.encode("utf8")
+        else:
+            value = ffi.NULL
         lib.dc_set_config(self._dc_context, name, value)
 
     def get_config(self, name):
@@ -116,16 +137,47 @@ class Account(object):
         """
         return lib.dc_is_configured(self._dc_context)
 
+    def set_avatar(self, img_path):
+        """Set self avatar.
+
+        :raises ValueError: if profile image could not be set
+        :returns: None
+        """
+        if img_path is None:
+            self.set_config("selfavatar", None)
+        else:
+            assert os.path.exists(img_path), img_path
+            self.set_config("selfavatar", img_path)
+
     def check_is_configured(self):
         """ Raise ValueError if this account is not configured. """
         if not self.is_configured():
             raise ValueError("need to configure first")
 
+    def empty_server_folders(self, inbox=False, mvbox=False):
+        """ empty server folders. """
+        flags = 0
+        if inbox:
+            flags |= const.DC_EMPTY_INBOX
+        if mvbox:
+            flags |= const.DC_EMPTY_MVBOX
+        if not flags:
+            raise ValueError("no flags set")
+        lib.dc_empty_server(self._dc_context, flags)
+
     def get_infostring(self):
         """ return info of the configured account. """
         self.check_is_configured()
         return from_dc_charpointer(lib.dc_get_info(self._dc_context))
 
+    def get_latest_backupfile(self, backupdir):
+        """ return the latest backup file in a given directory.
+        """
+        res = lib.dc_imex_has_backup(self._dc_context, as_dc_charpointer(backupdir))
+        if res == ffi.NULL:
+            return None
+        return from_dc_charpointer(res)
+
     def get_blobdir(self):
         """ return the directory for files.
 
@@ -135,9 +187,9 @@ class Account(object):
         return from_dc_charpointer(lib.dc_get_blobdir(self._dc_context))
 
     def get_self_contact(self):
-        """ return this account's identity as a :class:`deltachat.chatting.Contact`.
+        """ return this account's identity as a :class:`deltachat.contact.Contact`.
 
-        :returns: :class:`deltachat.chatting.Contact`
+        :returns: :class:`deltachat.contact.Contact`
         """
         self.check_is_configured()
         return Contact(self._dc_context, const.DC_CONTACT_ID_SELF)
@@ -149,7 +201,7 @@ class Account(object):
 
         :param email: email-address (text type)
         :param name: display name for this contact (optional)
-        :returns: :class:`deltachat.chatting.Contact` instance.
+        :returns: :class:`deltachat.contact.Contact` instance.
         """
         name = as_dc_charpointer(name)
         email = as_dc_charpointer(email)
@@ -175,7 +227,7 @@ class Account(object):
                       whose name or e-mail matches query.
         :param only_verified: if true only return verified contacts.
         :param with_self: if true the self-contact is also returned.
-        :returns: list of :class:`deltachat.chatting.Contact` objects.
+        :returns: list of :class:`deltachat.contact.Contact` objects.
         """
         flags = 0
         query = as_dc_charpointer(query)
@@ -193,7 +245,7 @@ class Account(object):
         """ create or get an existing 1:1 chat object for the specified contact or contact id.
 
         :param contact: chat_id (int) or contact object.
-        :returns: a :class:`deltachat.chatting.Chat` object.
+        :returns: a :class:`deltachat.chat.Chat` object.
         """
         if hasattr(contact, "id"):
             if contact._dc_context != self._dc_context:
@@ -210,7 +262,7 @@ class Account(object):
         the specified message.
 
         :param message: messsage id or message instance.
-        :returns: a :class:`deltachat.chatting.Chat` object.
+        :returns: a :class:`deltachat.chat.Chat` object.
         """
         if hasattr(message, "id"):
             if self._dc_context != message._dc_context:
@@ -228,16 +280,16 @@ class Account(object):
         Chats are unpromoted until the first message is sent.
 
         :param verified: if true only verified contacts can be added.
-        :returns: a :class:`deltachat.chatting.Chat` object.
+        :returns: a :class:`deltachat.chat.Chat` object.
         """
         bytes_name = name.encode("utf8")
-        chat_id = lib.dc_create_group_chat(self._dc_context, verified, bytes_name)
+        chat_id = lib.dc_create_group_chat(self._dc_context, int(verified), bytes_name)
         return Chat(self, chat_id)
 
     def get_chats(self):
         """ return list of chats.
 
-        :returns: a list of :class:`deltachat.chatting.Chat` objects.
+        :returns: a list of :class:`deltachat.chat.Chat` objects.
         """
         dc_chatlist = ffi.gc(
             lib.dc_get_chatlist(self._dc_context, 0, ffi.NULL, 0),
@@ -255,9 +307,24 @@ class Account(object):
         return Chat(self, const.DC_CHAT_ID_DEADDROP)
 
     def get_message_by_id(self, msg_id):
-        """ return Message instance. """
+        """ return Message instance.
+        :param msg_id: integer id of this message.
+        :returns: :class:`deltachat.message.Message` instance.
+        """
         return Message.from_db(self, msg_id)
 
+    def get_chat_by_id(self, chat_id):
+        """ return Chat instance.
+        :param chat_id: integer id of this chat.
+        :returns: :class:`deltachat.chat.Chat` instance.
+        :raises: ValueError if chat does not exist.
+        """
+        res = lib.dc_get_chat(self._dc_context, chat_id)
+        if res == ffi.NULL:
+            raise ValueError("cannot get chat with id={}".format(chat_id))
+        lib.dc_chat_unref(res)
+        return Chat(self, chat_id)
+
     def mark_seen_messages(self, messages):
         """ mark the given set of messages as seen.
 
@@ -274,7 +341,7 @@ class Account(object):
         """ Forward list of messages to a chat.
 
         :param messages: list of :class:`deltachat.message.Message` object.
-        :param chat: :class:`deltachat.chatting.Chat` object.
+        :param chat: :class:`deltachat.chat.Chat` object.
         :returns: None
         """
         msg_ids = [msg.id for msg in messages]
@@ -289,31 +356,64 @@ class Account(object):
         msg_ids = [msg.id for msg in messages]
         lib.dc_delete_msgs(self._dc_context, msg_ids, len(msg_ids))
 
-    def export_to_dir(self, backupdir):
-        """return after all delta chat state is exported to a new file in
-        the specified directory.
+    def export_self_keys(self, path):
+        """ export public and private keys to the specified directory. """
+        return self._export(path, imex_cmd=1)
+
+    def export_all(self, path):
+        """return new file containing a backup of all database state
+        (chats, contacts, keys, media, ...). The file is created in the
+        the `path` directory.
         """
-        snap_files = os.listdir(backupdir)
-        self._imex_completed.clear()
-        lib.dc_imex(self._dc_context, 11, as_dc_charpointer(backupdir), ffi.NULL)
+        export_files = self._export(path, 11)
+        if len(export_files) != 1:
+            raise RuntimeError("found more than one new file")
+        return export_files[0]
+
+    def _imex_events_clear(self):
+        try:
+            while True:
+                self._imex_events.get_nowait()
+        except Empty:
+            pass
+
+    def _export(self, path, imex_cmd):
+        self._imex_events_clear()
+        lib.dc_imex(self._dc_context, imex_cmd, as_dc_charpointer(path), ffi.NULL)
         if not self._threads.is_started():
             lib.dc_perform_imap_jobs(self._dc_context)
-        self._imex_completed.wait()
-        for x in os.listdir(backupdir):
-            if x not in snap_files:
-                return os.path.join(backupdir, x)
+        files_written = []
+        while True:
+            ev = self._imex_events.get()
+            if isinstance(ev, str):
+                files_written.append(ev)
+            elif isinstance(ev, bool):
+                if not ev:
+                    raise ValueError("export failed, exp-files: {}".format(files_written))
+                return files_written
 
-    def import_from_file(self, path):
-        """import delta chat state from the specified backup file.
+    def import_self_keys(self, path):
+        """ Import private keys found in the `path` directory.
+        The last imported key is made the default keys unless its name
+        contains the string legacy. Public keys are not imported.
+        """
+        self._import(path, imex_cmd=2)
+
+    def import_all(self, path):
+        """import delta chat state from the specified backup `path` (a file).
 
         The account must be in unconfigured state for import to attempted.
         """
         assert not self.is_configured(), "cannot import into configured account"
-        self._imex_completed.clear()
-        lib.dc_imex(self._dc_context, 12, as_dc_charpointer(path), ffi.NULL)
+        self._import(path, imex_cmd=12)
+
+    def _import(self, path, imex_cmd):
+        self._imex_events_clear()
+        lib.dc_imex(self._dc_context, imex_cmd, as_dc_charpointer(path), ffi.NULL)
         if not self._threads.is_started():
             lib.dc_perform_imap_jobs(self._dc_context)
-        self._imex_completed.wait()
+        if not self._imex_events.get():
+            raise ValueError("import from path '{}' failed".format(path))
 
     def initiate_key_transfer(self):
         """return setup code after a Autocrypt setup message
@@ -353,7 +453,7 @@ class Account(object):
         """ setup contact and return a Chat after contact is established.
 
         Note that this function may block for a long time as messages are exchanged
-        with the emitter of the QR code.  On success a :class:`deltachat.chatting.Chat` instance
+        with the emitter of the QR code.  On success a :class:`deltachat.chat.Chat` instance
         is returned.
         :param qr: valid "setup contact" QR code (all other QR codes will result in an exception)
         """
@@ -367,7 +467,7 @@ class Account(object):
         """ join a chat group through a QR code.
 
         Note that this function may block for a long time as messages are exchanged
-        with the emitter of the QR code.  On success a :class:`deltachat.chatting.Chat` instance
+        with the emitter of the QR code.  On success a :class:`deltachat.chat.Chat` instance
         is returned which is the chat that we just joined.
 
         :param qr: valid "join-group" QR code (all other QR codes will result in an exception)
@@ -378,7 +478,19 @@ class Account(object):
             raise ValueError("could not join group")
         return Chat(self, chat_id)
 
-    def start_threads(self):
+    def stop_ongoing(self):
+        lib.dc_stop_ongoing_process(self._dc_context)
+
+    #
+    # meta API for start/stop and event based processing
+    #
+
+    def wait_next_incoming_message(self):
+        """ wait for and return next incoming message. """
+        ev = self._evlogger.get_matching("DC_EVENT_INCOMING_MSG")
+        return self.get_message_by_id(ev[2])
+
+    def start_threads(self, mvbox=False, sentbox=False):
         """ start IMAP/SMTP threads (and configure account if it hasn't happened).
 
         :raises: ValueError if 'addr' or 'mail_pw' are not configured.
@@ -386,12 +498,13 @@ class Account(object):
         """
         if not self.is_configured():
             self.configure()
-        self._threads.start()
+        self._threads.start(mvbox=mvbox, sentbox=sentbox)
 
     def stop_threads(self, wait=True):
         """ stop IMAP/SMTP threads. """
-        lib.dc_stop_ongoing_process(self._dc_context)
-        self._threads.stop(wait=wait)
+        if self._threads.is_started():
+            self.stop_ongoing()
+            self._threads.stop(wait=wait)
 
     def shutdown(self, wait=True):
         """ stop threads and close and remove underlying dc_context and callbacks. """
@@ -402,6 +515,7 @@ class Account(object):
             self.stop_threads(wait=wait)  # to wait for threads
             deltachat.clear_context_callback(self._dc_context)
             del self._dc_context
+            atexit.unregister(self.shutdown)
 
     def _process_event(self, ctx, evt_name, data1, data2):
         assert ctx == self._dc_context
@@ -414,7 +528,26 @@ class Account(object):
 
     def on_dc_event_imex_progress(self, data1, data2):
         if data1 == 1000:
-            self._imex_completed.set()
+            self._imex_events.put(True)
+        elif data1 == 0:
+            self._imex_events.put(False)
+
+    def on_dc_event_imex_file_written(self, data1, data2):
+        self._imex_events.put(data1)
+
+    def set_location(self, latitude=0.0, longitude=0.0, accuracy=0.0):
+        """set a new location. It effects all chats where we currently
+        have enabled location streaming.
+
+        :param latitude: float (use 0.0 if not known)
+        :param longitude: float (use 0.0 if not known)
+        :param accuracy: float (use 0.0 if not known)
+        :raises: ValueError if no chat is currently streaming locations
+        :returns: None
+        """
+        dc_res = lib.dc_set_location(self._dc_context, latitude, longitude, accuracy)
+        if dc_res == 0:
+            raise ValueError("no chat is streaming locations")
 
 
 class IOThreads:
@@ -427,10 +560,14 @@ class IOThreads:
     def is_started(self):
         return len(self._name2thread) > 0
 
-    def start(self, imap=True, smtp=True):
+    def start(self, imap=True, smtp=True, mvbox=False, sentbox=False):
         assert not self.is_started()
         if imap:
-            self._start_one_thread("imap", self.imap_thread_run)
+            self._start_one_thread("inbox", self.imap_thread_run)
+        if mvbox:
+            self._start_one_thread("mvbox", self.mvbox_thread_run)
+        if sentbox:
+            self._start_one_thread("sentbox", self.sentbox_thread_run)
         if smtp:
             self._start_one_thread("smtp", self.smtp_thread_run)
 
@@ -443,17 +580,37 @@ class IOThreads:
         self._thread_quitflag = True
         lib.dc_interrupt_imap_idle(self._dc_context)
         lib.dc_interrupt_smtp_idle(self._dc_context)
+        lib.dc_interrupt_mvbox_idle(self._dc_context)
+        lib.dc_interrupt_sentbox_idle(self._dc_context)
         if wait:
             for name, thread in self._name2thread.items():
                 thread.join()
 
     def imap_thread_run(self):
-        self._log_event("py-bindings-info", 0, "IMAP THREAD START")
+        self._log_event("py-bindings-info", 0, "INBOX THREAD START")
         while not self._thread_quitflag:
             lib.dc_perform_imap_jobs(self._dc_context)
-            lib.dc_perform_imap_fetch(self._dc_context)
-            lib.dc_perform_imap_idle(self._dc_context)
-        self._log_event("py-bindings-info", 0, "IMAP THREAD FINISHED")
+            if not self._thread_quitflag:
+                lib.dc_perform_imap_fetch(self._dc_context)
+            if not self._thread_quitflag:
+                lib.dc_perform_imap_idle(self._dc_context)
+        self._log_event("py-bindings-info", 0, "INBOX THREAD FINISHED")
+
+    def mvbox_thread_run(self):
+        self._log_event("py-bindings-info", 0, "MVBOX THREAD START")
+        while not self._thread_quitflag:
+            lib.dc_perform_mvbox_jobs(self._dc_context)
+            lib.dc_perform_mvbox_fetch(self._dc_context)
+            lib.dc_perform_mvbox_idle(self._dc_context)
+        self._log_event("py-bindings-info", 0, "MVBOX THREAD FINISHED")
+
+    def sentbox_thread_run(self):
+        self._log_event("py-bindings-info", 0, "SENTBOX THREAD START")
+        while not self._thread_quitflag:
+            lib.dc_perform_sentbox_jobs(self._dc_context)
+            lib.dc_perform_sentbox_fetch(self._dc_context)
+            lib.dc_perform_sentbox_idle(self._dc_context)
+        self._log_event("py-bindings-info", 0, "SENTBOX THREAD FINISHED")
 
     def smtp_thread_run(self):
         self._log_event("py-bindings-info", 0, "SMTP THREAD START")
@@ -505,11 +662,11 @@ class EventLogger:
             else:
                 assert not rex.match(ev[0]), "event found {}".format(ev)
 
-    def get_matching(self, event_name_regex, check_error=True):
+    def get_matching(self, event_name_regex, check_error=True, timeout=None):
         self._log("-- waiting for event with regex: {} --".format(event_name_regex))
         rex = re.compile("(?:{}).*".format(event_name_regex))
         while 1:
-            ev = self.get()
+            ev = self.get(timeout=timeout, check_error=check_error)
             if rex.match(ev[0]):
                 return ev
 

python/src/deltachat/chat.py

@@ -1,58 +1,16 @@
-""" chatting related objects: Contact, Chat, Message. """
+""" Chat and Location related API. """
 
 import mimetypes
+import calendar
+import json
+from datetime import datetime
 import os
-from . import props
 from .cutil import as_dc_charpointer, from_dc_charpointer, iter_array
 from .capi import lib, ffi
 from . import const
 from .message import Message
 
 
-class Contact(object):
-    """ Delta-Chat Contact.
-
-    You obtain instances of it through :class:`deltachat.account.Account`.
-    """
-    def __init__(self, dc_context, id):
-        self._dc_context = dc_context
-        self.id = id
-
-    def __eq__(self, other):
-        return self._dc_context == other._dc_context and self.id == other.id
-
-    def __ne__(self, other):
-        return not (self == other)
-
-    def __repr__(self):
-        return "<Contact id={} addr={} dc_context={}>".format(self.id, self.addr, self._dc_context)
-
-    @property
-    def _dc_contact(self):
-        return ffi.gc(
-            lib.dc_get_contact(self._dc_context, self.id),
-            lib.dc_contact_unref
-        )
-
-    @props.with_doc
-    def addr(self):
-        """ normalized e-mail address for this account. """
-        return from_dc_charpointer(lib.dc_contact_get_addr(self._dc_contact))
-
-    @props.with_doc
-    def display_name(self):
-        """ display name for this contact. """
-        return from_dc_charpointer(lib.dc_contact_get_display_name(self._dc_contact))
-
-    def is_blocked(self):
-        """ Return True if the contact is blocked. """
-        return lib.dc_contact_is_blocked(self._dc_contact)
-
-    def is_verified(self):
-        """ Return True if the contact is verified. """
-        return lib.dc_contact_is_verified(self._dc_contact)
-
-
 class Chat(object):
     """ Chat object which manages members and through which you can send and retrieve messages.
 
@@ -109,6 +67,13 @@ class Chat(object):
         """
         return not lib.dc_chat_is_unpromoted(self._dc_chat)
 
+    def is_verified(self):
+        """ return True if this chat is a verified group.
+
+        :returns: True if chat is verified, False otherwise.
+        """
+        return lib.dc_chat_is_verified(self._dc_chat)
+
     def get_name(self):
         """ return name of this chat.
 
@@ -144,6 +109,30 @@ class Chat(object):
 
     # ------  chat messaging API ------------------------------
 
+    def send_msg(self, msg):
+        """send a message by using a ready Message object.
+
+        :param msg: a :class:`deltachat.message.Message` instance
+           previously returned by
+           e.g. :meth:`deltachat.message.Message.new_empty` or
+           :meth:`prepare_file`.
+        :raises ValueError: if message can not be sent.
+
+        :returns: a :class:`deltachat.message.Message` instance as
+           sent out.  This is the same object as was passed in, which
+           has been modified with the new state of the core.
+        """
+        if msg.is_out_preparing():
+            assert msg.id != 0
+            # get a fresh copy of dc_msg, the core needs it
+            msg = Message.from_db(self.account, msg.id)
+        sent_id = lib.dc_send_msg(self._dc_context, self.id, msg._dc_msg)
+        if sent_id == 0:
+            raise ValueError("message could not be sent")
+        # modify message in place to avoid bad state for the caller
+        msg._dc_msg = Message.from_db(self.account, sent_id)._dc_msg
+        return msg
+
     def send_text(self, text):
         """ send a text message and return the resulting Message instance.
 
@@ -165,9 +154,12 @@ class Chat(object):
         :raises ValueError: if message can not be send/chat does not exist.
         :returns: the resulting :class:`deltachat.message.Message` instance
         """
-        msg = self.prepare_message_file(path=path, mime_type=mime_type)
-        self.send_prepared(msg)
-        return msg
+        msg = Message.new_empty(self.account, view_type="file")
+        msg.set_file(path, mime_type)
+        sent_id = lib.dc_send_msg(self._dc_context, self.id, msg._dc_msg)
+        if sent_id == 0:
+            raise ValueError("message could not be sent")
+        return Message.from_db(self.account, sent_id)
 
     def send_image(self, path):
         """ send an image message and return the resulting Message instance.
@@ -177,9 +169,12 @@ class Chat(object):
         :returns: the resulting :class:`deltachat.message.Message` instance
         """
         mime_type = mimetypes.guess_type(path)[0]
-        msg = self.prepare_message_file(path=path, mime_type=mime_type, view_type="image")
-        self.send_prepared(msg)
-        return msg
+        msg = Message.new_empty(self.account, view_type="image")
+        msg.set_file(path, mime_type)
+        sent_id = lib.dc_send_msg(self._dc_context, self.id, msg._dc_msg)
+        if sent_id == 0:
+            raise ValueError("message could not be sent")
+        return Message.from_db(self.account, sent_id)
 
     def prepare_message(self, msg):
         """ create a new prepared message.
@@ -278,6 +273,12 @@ class Chat(object):
         """
         return lib.dc_marknoticed_chat(self._dc_context, self.id)
 
+    def get_summary(self):
+        """ return dictionary with summary information. """
+        dc_res = lib.dc_chat_get_info_json(self._dc_context, self.id)
+        s = from_dc_charpointer(dc_res)
+        return json.loads(s)
+
     # ------  group management API ------------------------------
 
     def add_contact(self, contact):
@@ -305,9 +306,10 @@ class Chat(object):
     def get_contacts(self):
         """ get all contacts for this chat.
         :params: contact object.
-        :returns: list of :class:`deltachat.chatting.Contact` objects for this chat
+        :returns: list of :class:`deltachat.contact.Contact` objects for this chat
 
         """
+        from .contact import Contact
         dc_array = ffi.gc(
             lib.dc_get_chat_contacts(self._dc_context, self.id),
             lib.dc_array_unref
@@ -358,3 +360,80 @@ class Chat(object):
         if dc_res == ffi.NULL:
             return None
         return from_dc_charpointer(dc_res)
+
+    def get_color(self):
+        """return the color of the chat.
+        :returns: color as 0x00rrggbb
+        """
+        return lib.dc_chat_get_color(self._dc_chat)
+
+    def get_subtitle(self):
+        """return the subtitle of the chat
+        :returns: the subtitle
+        """
+        return from_dc_charpointer(lib.dc_chat_get_subtitle(self._dc_chat))
+
+    # ------  location streaming API ------------------------------
+
+    def is_sending_locations(self):
+        """return True if this chat has location-sending enabled currently.
+        :returns: True if location sending is enabled.
+        """
+        return lib.dc_is_sending_locations_to_chat(self._dc_context, self.id)
+
+    def is_archived(self):
+        """return True if this chat is archived.
+        :returns: True if archived.
+        """
+        return lib.dc_chat_get_archived(self._dc_chat)
+
+    def enable_sending_locations(self, seconds):
+        """enable sending locations for this chat.
+
+        all subsequent messages will carry a location with them.
+        """
+        lib.dc_send_locations_to_chat(self._dc_context, self.id, seconds)
+
+    def get_locations(self, contact=None, timestamp_from=None, timestamp_to=None):
+        """return list of locations for the given contact in the given timespan.
+
+        :param contact: the contact for which locations shall be returned.
+        :param timespan_from: a datetime object or None (indicating "since beginning")
+        :param timespan_to: a datetime object or None (indicating up till now)
+        :returns: list of :class:`deltachat.chat.Location` objects.
+        """
+        if timestamp_from is None:
+            time_from = 0
+        else:
+            time_from = calendar.timegm(timestamp_from.utctimetuple())
+        if timestamp_to is None:
+            time_to = 0
+        else:
+            time_to = calendar.timegm(timestamp_to.utctimetuple())
+
+        if contact is None:
+            contact_id = 0
+        else:
+            contact_id = contact.id
+
+        dc_array = lib.dc_get_locations(self._dc_context, self.id, contact_id, time_from, time_to)
+        return [
+            Location(
+                latitude=lib.dc_array_get_latitude(dc_array, i),
+                longitude=lib.dc_array_get_longitude(dc_array, i),
+                accuracy=lib.dc_array_get_accuracy(dc_array, i),
+                timestamp=datetime.utcfromtimestamp(lib.dc_array_get_timestamp(dc_array, i)))
+            for i in range(lib.dc_array_get_cnt(dc_array))
+        ]
+
+
+class Location:
+    def __init__(self, latitude, longitude, accuracy, timestamp):
+        assert isinstance(timestamp, datetime)
+        self.latitude = latitude
+        self.longitude = longitude
+        self.accuracy = accuracy
+        self.timestamp = timestamp
+
+    def __eq__(self, other):
+        return self.__dict__ == other.__dict__

python/src/deltachat/const.py

@@ -47,19 +47,39 @@ DC_STATE_OUT_FAILED = 24
 DC_STATE_OUT_DELIVERED = 26
 DC_STATE_OUT_MDN_RCVD = 28
 DC_CONTACT_ID_SELF = 1
-DC_CONTACT_ID_DEVICE = 2
+DC_CONTACT_ID_INFO = 2
+DC_CONTACT_ID_DEVICE = 5
 DC_CONTACT_ID_LAST_SPECIAL = 9
 DC_MSG_TEXT = 10
 DC_MSG_IMAGE = 20
 DC_MSG_GIF = 21
+DC_MSG_STICKER = 23
 DC_MSG_AUDIO = 40
 DC_MSG_VOICE = 41
 DC_MSG_VIDEO = 50
 DC_MSG_FILE = 60
+DC_LP_AUTH_OAUTH2 = 0x2
+DC_LP_AUTH_NORMAL = 0x4
+DC_LP_IMAP_SOCKET_STARTTLS = 0x100
+DC_LP_IMAP_SOCKET_SSL = 0x200
+DC_LP_IMAP_SOCKET_PLAIN = 0x400
+DC_LP_SMTP_SOCKET_STARTTLS = 0x10000
+DC_LP_SMTP_SOCKET_SSL = 0x20000
+DC_LP_SMTP_SOCKET_PLAIN = 0x40000
+DC_CERTCK_AUTO = 0
+DC_CERTCK_STRICT = 1
+DC_CERTCK_ACCEPT_INVALID_CERTIFICATES = 3
+DC_EMPTY_MVBOX = 0x01
+DC_EMPTY_INBOX = 0x02
 DC_EVENT_INFO = 100
 DC_EVENT_SMTP_CONNECTED = 101
 DC_EVENT_IMAP_CONNECTED = 102
 DC_EVENT_SMTP_MESSAGE_SENT = 103
+DC_EVENT_IMAP_MESSAGE_DELETED = 104
+DC_EVENT_IMAP_MESSAGE_MOVED = 105
+DC_EVENT_IMAP_FOLDER_EMPTIED = 106
+DC_EVENT_NEW_BLOB_FILE = 150
+DC_EVENT_DELETED_BLOB_FILE = 151
 DC_EVENT_WARNING = 300
 DC_EVENT_ERROR = 400
 DC_EVENT_ERROR_NETWORK = 401
@@ -77,14 +97,67 @@ DC_EVENT_IMEX_PROGRESS = 2051
 DC_EVENT_IMEX_FILE_WRITTEN = 2052
 DC_EVENT_SECUREJOIN_INVITER_PROGRESS = 2060
 DC_EVENT_SECUREJOIN_JOINER_PROGRESS = 2061
-DC_EVENT_GET_STRING = 2091
+DC_EVENT_SECUREJOIN_MEMBER_ADDED = 2062
 DC_EVENT_FILE_COPIED = 2055
 DC_EVENT_IS_OFFLINE = 2081
+DC_EVENT_GET_STRING = 2091
+DC_STR_SELFNOTINGRP = 21
+DC_PROVIDER_STATUS_OK = 1
+DC_PROVIDER_STATUS_PREPARATION = 2
+DC_PROVIDER_STATUS_BROKEN = 3
+DC_STR_NOMESSAGES = 1
+DC_STR_SELF = 2
+DC_STR_DRAFT = 3
+DC_STR_MEMBER = 4
+DC_STR_CONTACT = 6
+DC_STR_VOICEMESSAGE = 7
+DC_STR_DEADDROP = 8
+DC_STR_IMAGE = 9
+DC_STR_VIDEO = 10
+DC_STR_AUDIO = 11
+DC_STR_FILE = 12
+DC_STR_STATUSLINE = 13
+DC_STR_NEWGROUPDRAFT = 14
+DC_STR_MSGGRPNAME = 15
+DC_STR_MSGGRPIMGCHANGED = 16
+DC_STR_MSGADDMEMBER = 17
+DC_STR_MSGDELMEMBER = 18
+DC_STR_MSGGROUPLEFT = 19
+DC_STR_GIF = 23
+DC_STR_ENCRYPTEDMSG = 24
+DC_STR_E2E_AVAILABLE = 25
+DC_STR_ENCR_TRANSP = 27
+DC_STR_ENCR_NONE = 28
+DC_STR_CANTDECRYPT_MSG_BODY = 29
+DC_STR_FINGERPRINTS = 30
+DC_STR_READRCPT = 31
+DC_STR_READRCPT_MAILBODY = 32
+DC_STR_MSGGRPIMGDELETED = 33
+DC_STR_E2E_PREFERRED = 34
+DC_STR_CONTACT_VERIFIED = 35
+DC_STR_CONTACT_NOT_VERIFIED = 36
+DC_STR_CONTACT_SETUP_CHANGED = 37
+DC_STR_ARCHIVEDCHATS = 40
+DC_STR_STARREDMSGS = 41
+DC_STR_AC_SETUP_MSG_SUBJECT = 42
+DC_STR_AC_SETUP_MSG_BODY = 43
+DC_STR_SELFTALK_SUBTITLE = 50
+DC_STR_CANNOT_LOGIN = 60
+DC_STR_SERVER_RESPONSE = 61
+DC_STR_MSGACTIONBYUSER = 62
+DC_STR_MSGACTIONBYME = 63
+DC_STR_MSGLOCATIONENABLED = 64
+DC_STR_MSGLOCATIONDISABLED = 65
+DC_STR_LOCATION = 66
+DC_STR_STICKER = 67
+DC_STR_DEVICE_MESSAGES = 68
+DC_STR_COUNT = 68
 # end const generated
 
 
 def read_event_defines(f):
-    rex = re.compile(r'#define\s+((?:DC_EVENT_|DC_QR|DC_MSG|DC_STATE_|DC_CONTACT_ID_|DC_GCL|DC_CHAT)\S+)\s+([x\d]+).*')
+    rex = re.compile(r'#define\s+((?:DC_EVENT|DC_QR|DC_MSG|DC_LP|DC_EMPTY|DC_CERTCK|DC_STATE|DC_STR|'
+                     r'DC_CONTACT_ID|DC_GCL|DC_CHAT|DC_PROVIDER)_\S+)\s+([x\d]+).*')
     for line in f:
         m = rex.match(line)
         if m:

python/src/deltachat/contact.py

@@ -0,0 +1,59 @@
+""" Contact object. """
+
+from . import props
+from .cutil import from_dc_charpointer
+from .capi import lib, ffi
+
+
+class Contact(object):
+    """ Delta-Chat Contact.
+
+    You obtain instances of it through :class:`deltachat.account.Account`.
+    """
+    def __init__(self, dc_context, id):
+        self._dc_context = dc_context
+        self.id = id
+
+    def __eq__(self, other):
+        return self._dc_context == other._dc_context and self.id == other.id
+
+    def __ne__(self, other):
+        return not (self == other)
+
+    def __repr__(self):
+        return "<Contact id={} addr={} dc_context={}>".format(self.id, self.addr, self._dc_context)
+
+    @property
+    def _dc_contact(self):
+        return ffi.gc(
+            lib.dc_get_contact(self._dc_context, self.id),
+            lib.dc_contact_unref
+        )
+
+    @props.with_doc
+    def addr(self):
+        """ normalized e-mail address for this account. """
+        return from_dc_charpointer(lib.dc_contact_get_addr(self._dc_contact))
+
+    @props.with_doc
+    def display_name(self):
+        """ display name for this contact. """
+        return from_dc_charpointer(lib.dc_contact_get_display_name(self._dc_contact))
+
+    def is_blocked(self):
+        """ Return True if the contact is blocked. """
+        return lib.dc_contact_is_blocked(self._dc_contact)
+
+    def is_verified(self):
+        """ Return True if the contact is verified. """
+        return lib.dc_contact_is_verified(self._dc_contact)
+
+    def get_profile_image(self):
+        """Get contact profile image.
+
+        :returns: path to profile image, None if no profile image exists.
+        """
+        dc_res = lib.dc_contact_get_profile_image(self._dc_contact)
+        if dc_res == ffi.NULL:
+            return None
+        return from_dc_charpointer(dc_res)

python/src/deltachat/message.py

@@ -1,7 +1,6 @@
-""" chatting related objects: Contact, Chat, Message. """
+""" The Message object. """
 
 import os
-import shutil
 from . import props
 from .cutil import from_dc_charpointer, as_dc_charpointer
 from .capi import lib, ffi
@@ -13,7 +12,7 @@ class Message(object):
     """ Message object.
 
     You obtain instances of it through :class:`deltachat.account.Account` or
-    :class:`deltachat.chatting.Chat`.
+    :class:`deltachat.chat.Chat`.
     """
     def __init__(self, account, dc_msg):
         self.account = account
@@ -58,8 +57,6 @@ class Message(object):
 
     def set_text(self, text):
         """set text of this message. """
-        assert self.id > 0, "message not prepared"
-        assert self.is_out_preparing()
         lib.dc_msg_set_text(self._dc_msg, as_dc_charpointer(text))
 
     @props.with_doc
@@ -72,19 +69,6 @@ class Message(object):
         mtype = ffi.NULL if mime_type is None else as_dc_charpointer(mime_type)
         if not os.path.exists(path):
             raise ValueError("path does not exist: {!r}".format(path))
-        blobdir = self.account.get_blobdir()
-        if not path.startswith(blobdir):
-            for i in range(50):
-                ext = "" if i == 0 else "-" + str(i)
-                dest = os.path.join(blobdir, os.path.basename(path) + ext)
-                if os.path.exists(dest):
-                    continue
-                shutil.copyfile(path, dest)
-                break
-            else:
-                raise ValueError("could not create blobdir-path for {}".format(path))
-            path = dest
-        assert path.startswith(blobdir), path
         lib.dc_msg_set_file(self._dc_msg, as_dc_charpointer(path), mtype)
 
     @props.with_doc
@@ -101,6 +85,18 @@ class Message(object):
         """ return True if this message is a setup message. """
         return lib.dc_msg_is_setupmessage(self._dc_msg)
 
+    def get_setupcodebegin(self):
+        """ return the first characters of a setup code in a setup message. """
+        return from_dc_charpointer(lib.dc_msg_get_setupcodebegin(self._dc_msg))
+
+    def is_encrypted(self):
+        """ return True if this message was encrypted. """
+        return bool(lib.dc_msg_get_showpadlock(self._dc_msg))
+
+    def is_forwarded(self):
+        """ return True if this message was forwarded. """
+        return bool(lib.dc_msg_is_forwarded(self._dc_msg))
+
     def get_message_info(self):
         """ Return informational text for a single message.
 
@@ -150,25 +146,25 @@ class Message(object):
         if mime_headers:
             s = ffi.string(ffi.gc(mime_headers, lib.dc_str_unref))
             if isinstance(s, bytes):
-                s = s.decode("ascii")
+                return email.message_from_bytes(s)
             return email.message_from_string(s)
 
     @property
     def chat(self):
         """chat this message was posted in.
 
-        :returns: :class:`deltachat.chatting.Chat` object
+        :returns: :class:`deltachat.chat.Chat` object
         """
-        from .chatting import Chat
+        from .chat import Chat
         chat_id = lib.dc_msg_get_chat_id(self._dc_msg)
         return Chat(self.account, chat_id)
 
     def get_sender_contact(self):
         """return the contact of who wrote the message.
 
-        :returns: :class:`deltachat.chatting.Contact` instance
+        :returns: :class:`deltachat.chat.Contact` instance
         """
-        from .chatting import Contact
+        from .contact import Contact
         contact_id = lib.dc_msg_get_from_id(self._dc_msg)
         return Contact(self._dc_context, contact_id)
 
@@ -178,7 +174,7 @@ class Message(object):
     @property
     def _msgstate(self):
         if self.id == 0:
-            dc_msg = self.message._dc_msg
+            dc_msg = self._dc_msg
         else:
             # load message from db to get a fresh/current state
             dc_msg = ffi.gc(

python/src/deltachat/provider.py

@@ -0,0 +1,67 @@
+"""Provider info class."""
+
+from .capi import ffi, lib
+from .cutil import as_dc_charpointer, from_dc_charpointer
+
+
+class ProviderNotFoundError(Exception):
+    """The provider information was not found."""
+
+
+class Provider(object):
+    """Provider information.
+
+    :param domain: The domain to get the provider info for, this is
+    normally the part following the `@` of the domain.
+    """
+
+    def __init__(self, domain):
+        provider = ffi.gc(
+            lib.dc_provider_new_from_domain(as_dc_charpointer(domain)),
+            lib.dc_provider_unref,
+        )
+        if provider == ffi.NULL:
+            raise ProviderNotFoundError("Provider not found")
+        self._provider = provider
+
+    @classmethod
+    def from_email(cls, email):
+        """Create provider info from an email address.
+
+        :param email: Email address to get provider info for.
+        """
+        return cls(email.split('@')[-1])
+
+    @property
+    def overview_page(self):
+        """URL to the overview page of the provider on providers.delta.chat."""
+        return from_dc_charpointer(
+            lib.dc_provider_get_overview_page(self._provider))
+
+    @property
+    def name(self):
+        """The name of the provider."""
+        return from_dc_charpointer(lib.dc_provider_get_name(self._provider))
+
+    @property
+    def markdown(self):
+        """Content of the information page, formatted as markdown."""
+        return from_dc_charpointer(
+            lib.dc_provider_get_markdown(self._provider))
+
+    @property
+    def status_date(self):
+        """The date the provider info was last updated, as a string."""
+        return from_dc_charpointer(
+            lib.dc_provider_get_status_date(self._provider))
+
+    @property
+    def status(self):
+        """The status of the provider information.
+
+        This is one of the
+        :attr:`deltachat.const.DC_PROVIDER_STATUS_OK`,
+        :attr:`deltachat.const.DC_PROVIDER_STATUS_PREPARATION` or
+        :attr:`deltachat.const.DC_PROVIDER_STATUS_BROKEN` constants.
+        """
+        return lib.dc_provider_get_status(self._provider)

python/tests/conftest.py

@@ -4,6 +4,7 @@ import pytest
 import requests
 import time
 from deltachat import Account
+from deltachat import const
 from deltachat.capi import lib
 import tempfile
 
@@ -84,16 +85,21 @@ class SessionLiveConfigFromFile:
 class SessionLiveConfigFromURL:
     def __init__(self, url, create_token):
         self.configlist = []
-        for i in range(2):
-            res = requests.post(url, json={"token_create_user": int(create_token)})
+        self.url = url
+        self.create_token = create_token
+
+    def get(self, index):
+        try:
+            return self.configlist[index]
+        except IndexError:
+            assert index == len(self.configlist), index
+            res = requests.post(self.url, json={"token_create_user": int(self.create_token)})
             if res.status_code != 200:
                 pytest.skip("creating newtmpuser failed {!r}".format(res))
             d = res.json()
             config = dict(addr=d["email"], mail_pw=d["password"])
             self.configlist.append(config)
-
-    def get(self, index):
-        return self.configlist[index]
+            return config
 
     def exists(self):
         return bool(self.configlist)
@@ -150,21 +156,41 @@ def acfactory(pytestconfig, tmpdir, request, session_liveconfig):
             lib.dc_set_config(ac._dc_context, b"configured", b"1")
             return ac
 
-        def get_online_configuring_account(self):
+        def peek_online_config(self):
+            if not session_liveconfig:
+                pytest.skip("specify DCC_PY_LIVECONFIG or --liveconfig")
+            return session_liveconfig.get(self.live_count)
+
+        def get_online_config(self):
             if not session_liveconfig:
                 pytest.skip("specify DCC_PY_LIVECONFIG or --liveconfig")
             configdict = session_liveconfig.get(self.live_count)
             self.live_count += 1
             if "e2ee_enabled" not in configdict:
                 configdict["e2ee_enabled"] = "1"
+
+            # Enable strict certificate checks for online accounts
+            configdict["imap_certificate_checks"] = str(const.DC_CERTCK_STRICT)
+            configdict["smtp_certificate_checks"] = str(const.DC_CERTCK_STRICT)
+
             tmpdb = tmpdir.join("livedb%d" % self.live_count)
             ac = self.make_account(tmpdb.strpath, logid="ac{}".format(self.live_count))
             ac._evlogger.init_time = self.init_time
             ac._evlogger.set_timeout(30)
+            return ac, dict(configdict)
+
+        def get_online_configuring_account(self, mvbox=False, sentbox=False):
+            ac, configdict = self.get_online_config()
             ac.configure(**configdict)
-            ac.start_threads()
+            ac.start_threads(mvbox=mvbox, sentbox=sentbox)
             return ac
 
+        def get_one_online_account(self):
+            ac1 = self.get_online_configuring_account()
+            wait_successful_IMAP_SMTP_connection(ac1)
+            wait_configuration_progress(ac1, 1000)
+            return ac1
+
         def get_two_online_accounts(self):
             ac1 = self.get_online_configuring_account()
             ac2 = self.get_online_configuring_account()
@@ -206,12 +232,13 @@ def lp():
     return Printer()
 
 
-def wait_configuration_progress(account, target):
+def wait_configuration_progress(account, min_target, max_target=1001):
+    min_target = min(min_target, max_target)
     while 1:
         evt_name, data1, data2 = \
             account._evlogger.get_matching("DC_EVENT_CONFIGURE_PROGRESS")
-        if data1 >= target:
-            print("** CONFIG PROGRESS {}".format(target), account)
+        if data1 >= min_target and data1 <= max_target:
+            print("** CONFIG PROGRESS {}".format(min_target), account)
             break
 
 

python/tests/test_account.py

@@ -1,6 +1,8 @@
 from __future__ import print_function
 import pytest
 import os
+import queue
+import time
 from deltachat import const, Account
 from deltachat.message import Message
 from datetime import datetime, timedelta
@@ -14,11 +16,20 @@ class TestOfflineAccountBasic:
         with pytest.raises(ValueError):
             Account(p.strpath)
 
+    def test_os_name(self, tmpdir):
+        p = tmpdir.join("hello.db")
+        # we can't easily test if os_name is used in X-Mailer
+        # outgoing messages without a full Online test
+        # but we at least check Account accepts the arg
+        ac1 = Account(p.strpath, os_name="solarpunk")
+        ac1.get_info()
+
     def test_getinfo(self, acfactory):
         ac1 = acfactory.get_unconfigured_account()
         d = ac1.get_info()
         assert d["arch"]
         assert d["number_of_chats"] == "0"
+        assert d["bcc_self"] == "0"
 
     def test_is_not_configured(self, acfactory):
         ac1 = acfactory.get_unconfigured_account()
@@ -37,6 +48,11 @@ class TestOfflineAccountBasic:
         ac1 = acfactory.get_unconfigured_account()
         assert "save_mime_headers" in ac1.get_config("sys.config_keys").split()
 
+    def test_has_bccself(self, acfactory):
+        ac1 = acfactory.get_unconfigured_account()
+        assert "bcc_self" in ac1.get_config("sys.config_keys").split()
+        assert ac1.get_config("bcc_self") == "0"
+
     def test_selfcontact_if_unconfigured(self, acfactory):
         ac1 = acfactory.get_unconfigured_account()
         with pytest.raises(ValueError):
@@ -93,8 +109,9 @@ class TestOfflineContact:
         ac1 = acfactory.get_configured_offline_account()
         contact1 = ac1.create_contact(email="some1@example.com", name="some1")
         chat = ac1.create_chat_by_contact(contact1)
-        chat.send_text("one messae")
+        msg = chat.send_text("one message")
         assert not ac1.delete_contact(contact1)
+        assert not msg.filemime
 
 
 class TestOfflineChat:
@@ -106,13 +123,19 @@ class TestOfflineChat:
     def chat1(self, ac1):
         contact1 = ac1.create_contact("some1@hello.com", name="some1")
         chat = ac1.create_chat_by_contact(contact1)
-        assert chat.id >= const.DC_CHAT_ID_LAST_SPECIAL, chat.id
+        assert chat.id > const.DC_CHAT_ID_LAST_SPECIAL, chat.id
         return chat
 
     def test_display(self, chat1):
         str(chat1)
         repr(chat1)
 
+    def test_chat_by_id(self, chat1):
+        chat2 = chat1.account.get_chat_by_id(chat1.id)
+        assert chat2 == chat1
+        with pytest.raises(ValueError):
+            chat1.account.get_chat_by_id(123123)
+
     def test_chat_idempotent(self, chat1, ac1):
         contact1 = chat1.get_contacts()[0]
         chat2 = ac1.create_chat_by_contact(contact1.id)
@@ -140,6 +163,39 @@ class TestOfflineChat:
         chat.set_name("title2")
         assert chat.get_name() == "title2"
 
+        d = chat.get_summary()
+        print(d)
+        assert d["id"] == chat.id
+        assert d["type"] == chat.get_type()
+        assert d["name"] == chat.get_name()
+        assert d["archived"] == chat.is_archived()
+        # assert d["param"] == chat.param
+        assert d["color"] == chat.get_color()
+        assert d["profile_image"] == "" if chat.get_profile_image() is None else chat.get_profile_image()
+        assert d["subtitle"] == chat.get_subtitle()
+        assert d["draft"] == "" if chat.get_draft() is None else chat.get_draft()
+
+    def test_group_chat_creation_with_translation(self, ac1):
+        ac1.set_stock_translation(const.DC_STR_NEWGROUPDRAFT, "xyz %1$s")
+        ac1._evlogger.consume_events()
+        with pytest.raises(ValueError):
+            ac1.set_stock_translation(const.DC_STR_NEWGROUPDRAFT, "xyz %2$s")
+        ac1._evlogger.get_matching("DC_EVENT_WARNING")
+        with pytest.raises(ValueError):
+            ac1.set_stock_translation(500, "xyz %1$s")
+        ac1._evlogger.get_matching("DC_EVENT_WARNING")
+        contact1 = ac1.create_contact("some1@hello.com", name="some1")
+        contact2 = ac1.create_contact("some2@hello.com", name="some2")
+        chat = ac1.create_group_chat(name="title1")
+        chat.add_contact(contact1)
+        chat.add_contact(contact2)
+        assert chat.get_name() == "title1"
+        assert contact1 in chat.get_contacts()
+        assert contact2 in chat.get_contacts()
+        assert not chat.is_promoted()
+        msg = chat.get_draft()
+        assert msg.text == "xyz title1"
+
     @pytest.mark.parametrize("verified", [True, False])
     def test_group_chat_qr(self, acfactory, ac1, verified):
         ac2 = acfactory.get_configured_offline_account()
@@ -221,7 +277,9 @@ class TestOfflineChat:
             chat1.send_image(path="notexists")
         fn = data.get_path("d.png")
         lp.sec("sending image")
+        chat1.account._evlogger.consume_events()
         msg = chat1.send_image(fn)
+        chat1.account._evlogger.get_matching("DC_EVENT_NEW_BLOB_FILE")
         assert msg.is_image()
         assert msg
         assert msg.id > 0
@@ -293,10 +351,10 @@ class TestOfflineChat:
         assert contact == ac1.get_self_contact()
         assert not backupdir.listdir()
 
-        path = ac1.export_to_dir(backupdir.strpath)
+        path = ac1.export_all(backupdir.strpath)
         assert os.path.exists(path)
         ac2 = acfactory.get_unconfigured_account()
-        ac2.import_from_file(path)
+        ac2.import_all(path)
         contacts = ac2.get_contacts(query="some1")
         assert len(contacts) == 1
         contact2 = contacts[0]
@@ -332,66 +390,258 @@ class TestOfflineChat:
         assert not res.is_ask_verifygroup()
         assert res.contact_id == 10
 
+    def test_group_chat_many_members_add_remove(self, ac1, lp):
+        lp.sec("ac1: creating group chat with 10 other members")
+        chat = ac1.create_group_chat(name="title1")
+        contacts = []
+        for i in range(10):
+            contact = ac1.create_contact("some{}@example.org".format(i))
+            contacts.append(contact)
+            chat.add_contact(contact)
+
+        num_contacts = len(chat.get_contacts())
+        assert num_contacts == 11
+
+        lp.sec("ac1: removing two contacts and checking things are right")
+        chat.remove_contact(contacts[9])
+        chat.remove_contact(contacts[3])
+        assert len(chat.get_contacts()) == 9
+
 
 class TestOnlineAccount:
-    def get_chat(self, ac1, ac2):
+    def get_chat(self, ac1, ac2, both_created=False):
         c2 = ac1.create_contact(email=ac2.get_config("addr"))
         chat = ac1.create_chat_by_contact(c2)
-        assert chat.id >= const.DC_CHAT_ID_LAST_SPECIAL
+        assert chat.id > const.DC_CHAT_ID_LAST_SPECIAL
+        if both_created:
+            ac2.create_chat_by_contact(ac2.create_contact(email=ac1.get_config("addr")))
         return chat
 
-    def test_one_account_send(self, acfactory):
+    def test_configure_canceled(self, acfactory):
         ac1 = acfactory.get_online_configuring_account()
-        c2 = ac1.create_contact(email=ac1.get_config("addr"))
+        wait_configuration_progress(ac1, 200)
+        ac1.stop_ongoing()
+        wait_configuration_progress(ac1, 0, 0)
+
+    def test_export_import_self_keys(self, acfactory, tmpdir):
+        ac1, ac2 = acfactory.get_two_online_accounts()
+        dir = tmpdir.mkdir("exportdir")
+        export_files = ac1.export_self_keys(dir.strpath)
+        assert len(export_files) == 2
+        for x in export_files:
+            assert x.startswith(dir.strpath)
+        ac1._evlogger.consume_events()
+        ac1.import_self_keys(dir.strpath)
+
+    def test_one_account_send_bcc_setting(self, acfactory, lp):
+        ac1 = acfactory.get_online_configuring_account()
+        ac2_config = acfactory.peek_online_config()
+        c2 = ac1.create_contact(email=ac2_config["addr"])
         chat = ac1.create_chat_by_contact(c2)
-        assert chat.id >= const.DC_CHAT_ID_LAST_SPECIAL
+        assert chat.id > const.DC_CHAT_ID_LAST_SPECIAL
         wait_successful_IMAP_SMTP_connection(ac1)
         wait_configuration_progress(ac1, 1000)
 
+        lp.sec("ac1: setting bcc_self=1")
+        ac1.set_config("bcc_self", "1")
+
+        lp.sec("send out message with bcc to ourselves")
         msg_out = chat.send_text("message2")
-        # wait for own account to receive
-        ev = ac1._evlogger.get_matching("DC_EVENT_INCOMING_MSG|DC_EVENT_MSGS_CHANGED")
-        assert ev[1] == msg_out.id
-
-    def test_two_accounts_send_receive(self, acfactory):
-        ac1, ac2 = acfactory.get_two_online_accounts()
-        chat = self.get_chat(ac1, ac2)
-
-        msg_out = chat.send_text("message1")
-
-        # wait for other account to receive
-        ev = ac2._evlogger.get_matching("DC_EVENT_INCOMING_MSG|DC_EVENT_MSGS_CHANGED")
+        ev = ac1._evlogger.get_matching("DC_EVENT_MSGS_CHANGED")
         assert ev[2] == msg_out.id
-        msg_in = ac2.get_message_by_id(msg_out.id)
-        assert msg_in.text == "message1"
+        # wait for send out (BCC)
+        assert ac1.get_config("bcc_self") == "1"
+        self_addr = ac1.get_config("addr")
+        ev = ac1._evlogger.get_matching("DC_EVENT_SMTP_MESSAGE_SENT")
+        assert self_addr in ev[2]
+        ev = ac1._evlogger.get_matching("DC_EVENT_DELETED_BLOB_FILE")
 
-    def test_forward_messages(self, acfactory):
+        ac1._evlogger.consume_events()
+        lp.sec("send out message without bcc")
+        ac1.set_config("bcc_self", "0")
+        msg_out = chat.send_text("message3")
+        assert not msg_out.is_forwarded()
+        ev = ac1._evlogger.get_matching("DC_EVENT_MSGS_CHANGED")
+        assert ev[2] == msg_out.id
+        ev = ac1._evlogger.get_matching("DC_EVENT_SMTP_MESSAGE_SENT")
+        assert self_addr not in ev[2]
+        ev = ac1._evlogger.get_matching("DC_EVENT_DELETED_BLOB_FILE")
+
+    def test_send_file_twice_unicode_filename_mangling(self, tmpdir, acfactory, lp):
         ac1, ac2 = acfactory.get_two_online_accounts()
         chat = self.get_chat(ac1, ac2)
 
+        basename = "somedäüta.html.zip"
+        p = os.path.join(tmpdir.strpath, basename)
+        with open(p, "w") as f:
+            f.write("some data")
+
+        def send_and_receive_message():
+            lp.sec("ac1: prepare and send attachment + text to ac2")
+            msg1 = Message.new_empty(ac1, "file")
+            msg1.set_text("withfile")
+            msg1.set_file(p)
+            chat.send_msg(msg1)
+
+            lp.sec("ac2: receive message")
+            ev = ac2._evlogger.get_matching("DC_EVENT_INCOMING_MSG|DC_EVENT_MSGS_CHANGED")
+            assert ev[2] > const.DC_CHAT_ID_LAST_SPECIAL
+            return ac2.get_message_by_id(ev[2])
+
+        msg = send_and_receive_message()
+        assert msg.text == "withfile"
+        assert open(msg.filename).read() == "some data"
+        assert msg.filename.endswith(basename)
+
+        msg2 = send_and_receive_message()
+        assert msg2.text == "withfile"
+        assert open(msg2.filename).read() == "some data"
+        assert msg2.filename.endswith("html.zip")
+        assert msg.filename != msg2.filename
+
+    def test_send_file_html_attachment(self, tmpdir, acfactory, lp):
+        ac1, ac2 = acfactory.get_two_online_accounts()
+        chat = self.get_chat(ac1, ac2)
+
+        basename = "test.html"
+        content = "<html><body>text</body>data"
+
+        p = os.path.join(tmpdir.strpath, basename)
+        with open(p, "w") as f:
+            # write wrong html to see if core tries to parse it
+            # (it shouldn't as it's a file attachment)
+            f.write(content)
+
+        lp.sec("ac1: prepare and send attachment + text to ac2")
+        chat.send_file(p, mime_type="text/html")
+
+        lp.sec("ac2: receive message")
+        ev = ac2._evlogger.get_matching("DC_EVENT_INCOMING_MSG|DC_EVENT_MSGS_CHANGED")
+        assert ev[2] > const.DC_CHAT_ID_LAST_SPECIAL
+        msg = ac2.get_message_by_id(ev[2])
+
+        assert open(msg.filename).read() == content
+        assert msg.filename.endswith(basename)
+
+    def test_mvbox_sentbox_threads(self, acfactory, lp):
+        lp.sec("ac1: start with mvbox thread")
+        ac1 = acfactory.get_online_configuring_account(mvbox=True, sentbox=True)
+
+        lp.sec("ac2: start without mvbox/sentbox threads")
+        ac2 = acfactory.get_online_configuring_account()
+
+        lp.sec("ac2: waiting for configuration")
+        wait_configuration_progress(ac2, 1000)
+
+        lp.sec("ac1: waiting for configuration")
+        wait_configuration_progress(ac1, 1000)
+
+        lp.sec("ac1: send message and wait for ac2 to receive it")
+        chat = self.get_chat(ac1, ac2)
+        chat.send_text("message1")
+        ev = ac2._evlogger.get_matching("DC_EVENT_INCOMING_MSG|DC_EVENT_MSGS_CHANGED")
+        assert ev[2] > const.DC_CHAT_ID_LAST_SPECIAL
+        lp.sec("test finished")
+
+    def test_move_works(self, acfactory):
+        ac1 = acfactory.get_online_configuring_account()
+        ac2 = acfactory.get_online_configuring_account(mvbox=True)
+        wait_configuration_progress(ac2, 1000)
+        wait_configuration_progress(ac1, 1000)
+        chat = self.get_chat(ac1, ac2)
+        chat.send_text("message1")
+        ev = ac2._evlogger.get_matching("DC_EVENT_INCOMING_MSG|DC_EVENT_MSGS_CHANGED")
+        assert ev[2] > const.DC_CHAT_ID_LAST_SPECIAL
+        ev = ac2._evlogger.get_matching("DC_EVENT_IMAP_MESSAGE_MOVED")
+
+    def test_move_works_on_self_sent(self, acfactory):
+        ac1 = acfactory.get_online_configuring_account(mvbox=True)
+        ac1.set_config("bcc_self", "1")
+        ac2 = acfactory.get_online_configuring_account()
+        wait_configuration_progress(ac2, 1000)
+        wait_configuration_progress(ac1, 1000)
+        chat = self.get_chat(ac1, ac2)
+        chat.send_text("message1")
+        chat.send_text("message2")
+        chat.send_text("message3")
+        ac1._evlogger.get_matching("DC_EVENT_IMAP_MESSAGE_MOVED")
+        ac1._evlogger.get_matching("DC_EVENT_IMAP_MESSAGE_MOVED")
+        ac1._evlogger.get_matching("DC_EVENT_IMAP_MESSAGE_MOVED")
+
+    def test_forward_messages(self, acfactory, lp):
+        ac1, ac2 = acfactory.get_two_online_accounts()
+        chat = self.get_chat(ac1, ac2)
+
+        lp.sec("ac1: send message to ac2")
         msg_out = chat.send_text("message2")
 
-        # wait for other account to receive
+        lp.sec("ac2: wait for receive")
         ev = ac2._evlogger.get_matching("DC_EVENT_INCOMING_MSG|DC_EVENT_MSGS_CHANGED")
         assert ev[2] == msg_out.id
         msg_in = ac2.get_message_by_id(msg_out.id)
         assert msg_in.text == "message2"
 
-        # check the message arrived in contact-requests/deaddrop
+        lp.sec("ac2: check that the message arrive in deaddrop")
         chat2 = msg_in.chat
         assert msg_in in chat2.get_messages()
+        assert not msg_in.is_forwarded()
         assert chat2.is_deaddrop()
         assert chat2 == ac2.get_deaddrop_chat()
+
+        lp.sec("ac2: create new chat and forward message to it")
         chat3 = ac2.create_group_chat("newgroup")
         assert not chat3.is_promoted()
         ac2.forward_messages([msg_in], chat3)
+
+        lp.sec("ac2: check new chat has a forwarded message")
         assert chat3.is_promoted()
         messages = chat3.get_messages()
+        msg = messages[-1]
+        assert msg.is_forwarded()
         ac2.delete_messages(messages)
         assert not chat3.get_messages()
 
-    def test_send_and_receive_message(self, acfactory, lp):
+    def test_forward_own_message(self, acfactory, lp):
         ac1, ac2 = acfactory.get_two_online_accounts()
+        chat = self.get_chat(ac1, ac2, both_created=True)
+
+        lp.sec("sending message")
+        msg_out = chat.send_text("message2")
+
+        lp.sec("receiving message")
+        ev = ac2._evlogger.get_matching("DC_EVENT_INCOMING_MSG")
+        msg_in = ac2.get_message_by_id(ev[2])
+        assert msg_in.text == "message2"
+        assert not msg_in.is_forwarded()
+
+        lp.sec("ac1: creating group chat, and forward own message")
+        group = ac1.create_group_chat("newgroup2")
+        group.add_contact(ac1.create_contact(ac2.get_config("addr")))
+        ac1.forward_messages([msg_out], group)
+
+        # wait for other account to receive
+        ev = ac2._evlogger.get_matching("DC_EVENT_INCOMING_MSG")
+        msg_in = ac2.get_message_by_id(ev[2])
+        assert msg_in.text == "message2"
+        assert msg_in.is_forwarded()
+
+    def test_send_self_message_and_empty_folder(self, acfactory, lp):
+        ac1 = acfactory.get_one_online_account()
+        lp.sec("ac1: create self chat")
+        chat = ac1.create_chat_by_contact(ac1.get_self_contact())
+        chat.send_text("hello")
+        ac1._evlogger.get_matching("DC_EVENT_SMTP_MESSAGE_SENT")
+        ac1.empty_server_folders(inbox=True, mvbox=True)
+        ev = ac1._evlogger.get_matching("DC_EVENT_IMAP_FOLDER_EMPTIED")
+        assert ev[2] == "DeltaChat"
+        ev = ac1._evlogger.get_matching("DC_EVENT_IMAP_FOLDER_EMPTIED")
+        assert ev[2] == "INBOX"
+
+    def test_send_and_receive_message_markseen(self, acfactory, lp):
+        ac1, ac2 = acfactory.get_two_online_accounts()
+
+        # make DC's life harder wrt to encodings
+        ac1.set_config("displayname", "ä name")
 
         lp.sec("ac1: create chat with ac2")
         chat = self.get_chat(ac1, ac2)
@@ -409,6 +659,8 @@ class TestOnlineAccount:
         assert ev[2] == msg_out.id
         msg_in = ac2.get_message_by_id(msg_out.id)
         assert msg_in.text == "message1"
+        assert not msg_in.is_forwarded()
+        assert msg_in.get_sender_contact().display_name == ac1.get_config("displayname")
 
         lp.sec("check the message arrived in contact-requets/deaddrop")
         chat2 = msg_in.chat
@@ -426,14 +678,69 @@ class TestOnlineAccount:
         chat2b.mark_noticed()
         assert chat2b.count_fresh_messages() == 0
 
-        lp.sec("mark message as seen on ac2, wait for changes on ac1")
-        ac2.mark_seen_messages([msg_in])
+        ac2._evlogger.consume_events()
+
+        lp.sec("sending a second message from ac1 to ac2")
+        msg_out2 = chat.send_text("message2")
+
+        lp.sec("wait for ac2 to receive second message")
+        ev = ac2._evlogger.get_matching("DC_EVENT_INCOMING_MSG")
+        assert ev[2] == msg_out2.id
+        msg_in2 = ac2.get_message_by_id(msg_out2.id)
+
+        lp.sec("mark messages as seen on ac2, wait for changes on ac1")
+        ac2.mark_seen_messages([msg_in, msg_in2])
         lp.step("1")
-        ev = ac1._evlogger.get_matching("DC_EVENT_MSG_READ")
-        assert ev[1] >= const.DC_CHAT_ID_LAST_SPECIAL
-        assert ev[2] >= const.DC_MSG_ID_LAST_SPECIAL
+        for i in range(2):
+            ev = ac1._evlogger.get_matching("DC_EVENT_MSG_READ")
+            assert ev[1] > const.DC_CHAT_ID_LAST_SPECIAL
+            assert ev[2] > const.DC_MSG_ID_LAST_SPECIAL
         lp.step("2")
         assert msg_out.is_out_mdn_received()
+        assert msg_out2.is_out_mdn_received()
+
+        lp.sec("check that a second call to mark_seen does not create change or smtp job")
+        ac2._evlogger.consume_events()
+        ac2.mark_seen_messages([msg_in])
+        try:
+            ac2._evlogger.get_matching("DC_EVENT_MSG_READ", timeout=0.01)
+        except queue.Empty:
+            pass  # mark_seen_messages() has generated events before it returns
+
+    def test_mdn_asymetric(self, acfactory, lp):
+        ac1, ac2 = acfactory.get_two_online_accounts()
+
+        lp.sec("ac1: create chat with ac2")
+        chat = self.get_chat(ac1, ac2, both_created=True)
+
+        # make sure mdns are enabled (usually enabled by default already)
+        ac1.set_config("mdns_enabled", "1")
+        ac2.set_config("mdns_enabled", "1")
+
+        lp.sec("sending text message from ac1 to ac2")
+        msg_out = chat.send_text("message1")
+
+        assert len(chat.get_messages()) == 1
+
+        lp.sec("disable ac1 MDNs")
+        ac1.set_config("mdns_enabled", "0")
+
+        lp.sec("wait for ac2 to receive message")
+        msg = ac2.wait_next_incoming_message()
+
+        assert len(msg.chat.get_messages()) == 1
+
+        lp.sec("ac2: mark incoming message as seen")
+        ac2.mark_seen_messages([msg])
+
+        lp.sec("ac1: waiting for incoming activity")
+        # MDN should be moved even though MDNs are already disabled
+        ac1._evlogger.get_matching("DC_EVENT_IMAP_MESSAGE_MOVED")
+
+        assert len(chat.get_messages()) == 1
+
+        # MDN is received even though MDNs are already disabled
+        assert msg_out.is_out_mdn_received()
 
     def test_send_and_receive_will_encrypt_decrypt(self, acfactory, lp):
         ac1, ac2 = acfactory.get_two_online_accounts()
@@ -443,6 +750,7 @@ class TestOnlineAccount:
 
         lp.sec("sending text message from ac1 to ac2")
         msg_out = chat.send_text("message1")
+        assert not msg_out.is_encrypted()
 
         lp.sec("wait for ac2 to receive message")
         ev = ac2._evlogger.get_matching("DC_EVENT_MSGS_CHANGED")
@@ -460,6 +768,100 @@ class TestOnlineAccount:
         assert ev[2] > msg_out.id
         msg_back = ac1.get_message_by_id(ev[2])
         assert msg_back.text == "message-back"
+        assert msg_back.is_encrypted()
+
+        # Test that we do not gossip peer keys in 1-to-1 chat,
+        # as it makes no sense to gossip to peers their own keys.
+        # Gossip is only sent in encrypted messages,
+        # and we sent encrypted msg_back right above.
+        assert chat2b.get_summary()["gossiped_timestamp"] == 0
+
+        lp.sec("create group chat with two members, one of which has no encrypt state")
+        chat = ac1.create_group_chat("encryption test")
+        chat.add_contact(ac1.create_contact(ac2.get_config("addr")))
+        chat.add_contact(ac1.create_contact("notexisting@testrun.org"))
+        msg = chat.send_text("test not encrypt")
+        ev = ac1._evlogger.get_matching("DC_EVENT_SMTP_MESSAGE_SENT")
+        assert not msg.is_encrypted()
+
+    def test_send_first_message_as_long_unicode_with_cr(self, acfactory, lp):
+        ac1, ac2 = acfactory.get_two_online_accounts()
+        ac2.set_config("save_mime_headers", "1")
+
+        lp.sec("ac1: create chat with ac2")
+        chat = self.get_chat(ac1, ac2, both_created=True)
+
+        lp.sec("sending multi-line non-unicode message from ac1 to ac2")
+        text1 = "hello\nworld"
+        msg_out = chat.send_text(text1)
+        assert not msg_out.is_encrypted()
+
+        lp.sec("sending multi-line unicode text message from ac1 to ac2")
+        text2 = "äalis\nthis is ßßÄ"
+        msg_out = chat.send_text(text2)
+        assert not msg_out.is_encrypted()
+
+        lp.sec("wait for ac2 to receive multi-line non-unicode message")
+        msg_in = ac2.wait_next_incoming_message()
+        assert msg_in.text == text1
+
+        lp.sec("wait for ac2 to receive multi-line unicode message")
+        msg_in = ac2.wait_next_incoming_message()
+        assert msg_in.text == text2
+        assert ac1.get_config("addr") in msg_in.chat.get_name()
+
+    def test_reply_encrypted(self, acfactory, lp):
+        ac1, ac2 = acfactory.get_two_online_accounts()
+
+        lp.sec("ac1: create chat with ac2")
+        chat = self.get_chat(ac1, ac2)
+
+        lp.sec("sending text message from ac1 to ac2")
+        msg_out = chat.send_text("message1")
+        assert not msg_out.is_encrypted()
+
+        lp.sec("wait for ac2 to receive message")
+        ev = ac2._evlogger.get_matching("DC_EVENT_MSGS_CHANGED")
+        msg_in = ac2.get_message_by_id(msg_out.id)
+        assert msg_in.text == "message1"
+        assert not msg_in.is_encrypted()
+
+        lp.sec("create new chat with contact and send back (encrypted) message")
+        chat2b = ac2.create_chat_by_message(msg_in)
+        chat2b.send_text("message-back")
+
+        lp.sec("wait for ac1 to receive message")
+        ev = ac1._evlogger.get_matching("DC_EVENT_INCOMING_MSG")
+        assert ev[1] == chat.id
+        msg_back = ac1.get_message_by_id(ev[2])
+        assert msg_back.text == "message-back"
+        assert msg_back.is_encrypted()
+
+        lp.sec("ac1: e2ee_enabled=0 and see if reply is encrypted")
+        print("ac1: e2ee_enabled={}".format(ac1.get_config("e2ee_enabled")))
+        print("ac2: e2ee_enabled={}".format(ac2.get_config("e2ee_enabled")))
+        ac1.set_config("e2ee_enabled", "0")
+
+        # Set unprepared and unencrypted draft to test that it is not
+        # taken into account when determining whether last message is
+        # encrypted.
+        msg_draft = Message.new_empty(ac1, "text")
+        msg_draft.set_text("message2 -- should be encrypted")
+        chat.set_draft(msg_draft)
+
+        # Get the draft, prepare and send it.
+        msg_draft = chat.get_draft()
+        msg_out = chat.prepare_message(msg_draft)
+        chat.send_prepared(msg_out)
+
+        chat.set_draft(None)
+        assert chat.get_draft() is None
+
+        lp.sec("wait for ac2 to receive message")
+        ev = ac2._evlogger.get_matching("DC_EVENT_INCOMING_MSG")
+        msg_in = ac2.get_message_by_id(ev[2])
+        assert msg_in.text == "message2 -- should be encrypted"
+        assert msg_in.is_encrypted()
 
     def test_saved_mime_on_received_message(self, acfactory, lp):
         ac1, ac2 = acfactory.get_two_online_accounts()
@@ -501,19 +903,30 @@ class TestOnlineAccount:
         assert os.path.exists(msg_in.filename)
         assert os.stat(msg_in.filename).st_size == os.stat(path).st_size
 
-    def test_import_export_online(self, acfactory, tmpdir):
+    def test_import_export_online_all(self, acfactory, tmpdir, lp):
         ac1 = acfactory.get_online_configuring_account()
         wait_configuration_progress(ac1, 1000)
 
+        lp.sec("create some chat content")
         contact1 = ac1.create_contact("some1@hello.com", name="some1")
         chat = ac1.create_chat_by_contact(contact1)
         chat.send_text("msg1")
         backupdir = tmpdir.mkdir("backup")
-        path = ac1.export_to_dir(backupdir.strpath)
-        assert os.path.exists(path)
 
+        lp.sec("export all to {}".format(backupdir))
+        path = ac1.export_all(backupdir.strpath)
+        assert os.path.exists(path)
+        t = time.time()
+
+        lp.sec("get fresh empty account")
         ac2 = acfactory.get_unconfigured_account()
-        ac2.import_from_file(path)
+
+        lp.sec("get latest backup file")
+        path2 = ac2.get_latest_backupfile(backupdir.strpath)
+        assert path2 == path
+
+        lp.sec("import backup and check it's proper")
+        ac2.import_all(path)
         contacts = ac2.get_contacts(query="some1")
         assert len(contacts) == 1
         contact2 = contacts[0]
@@ -523,7 +936,18 @@ class TestOnlineAccount:
         assert len(messages) == 1
         assert messages[0].text == "msg1"
 
-    def test_ac_setup_message(self, acfactory):
+        # wait until a second passed since last backup
+        # because get_latest_backupfile() shall return the latest backup
+        # from a UI it's unlikely anyone manages to export two
+        # backups in one second.
+        time.sleep(max(0, 1 - (time.time() - t)))
+        lp.sec("Second-time export all to {}".format(backupdir))
+        path2 = ac1.export_all(backupdir.strpath)
+        assert os.path.exists(path2)
+        assert path2 != path
+        assert ac2.get_latest_backupfile(backupdir.strpath) == path2
+
+    def test_ac_setup_message(self, acfactory, lp):
         # note that the receiving account needs to be configured and running
         # before ther setup message is send. DC does not read old messages
         # as of Jul2019
@@ -531,20 +955,46 @@ class TestOnlineAccount:
         ac2 = acfactory.clone_online_account(ac1)
         wait_configuration_progress(ac2, 1000)
         wait_configuration_progress(ac1, 1000)
+        lp.sec("trigger ac setup message and return setupcode")
         assert ac1.get_info()["fingerprint"] != ac2.get_info()["fingerprint"]
         setup_code = ac1.initiate_key_transfer()
         ac2._evlogger.set_timeout(30)
         ev = ac2._evlogger.get_matching("DC_EVENT_INCOMING_MSG|DC_EVENT_MSGS_CHANGED")
         msg = ac2.get_message_by_id(ev[2])
         assert msg.is_setup_message()
-        # first try a bad setup code
+        assert msg.get_setupcodebegin() == setup_code[:2]
+        lp.sec("try a bad setup code")
         with pytest.raises(ValueError):
             msg.continue_key_transfer(str(reversed(setup_code)))
+        lp.sec("try a good setup code")
         print("*************** Incoming ASM File at: ", msg.filename)
         print("*************** Setup Code: ", setup_code)
         msg.continue_key_transfer(setup_code)
         assert ac1.get_info()["fingerprint"] == ac2.get_info()["fingerprint"]
 
+    def test_ac_setup_message_twice(self, acfactory, lp):
+        ac1 = acfactory.get_online_configuring_account()
+        ac2 = acfactory.clone_online_account(ac1)
+        ac2._evlogger.set_timeout(30)
+        wait_configuration_progress(ac2, 1000)
+        wait_configuration_progress(ac1, 1000)
+
+        lp.sec("trigger ac setup message but ignore")
+        assert ac1.get_info()["fingerprint"] != ac2.get_info()["fingerprint"]
+        ac1.initiate_key_transfer()
+        ac2._evlogger.get_matching("DC_EVENT_INCOMING_MSG|DC_EVENT_MSGS_CHANGED")
+
+        lp.sec("trigger second ac setup message, wait for receive ")
+        setup_code2 = ac1.initiate_key_transfer()
+        ev = ac2._evlogger.get_matching("DC_EVENT_INCOMING_MSG|DC_EVENT_MSGS_CHANGED")
+        msg = ac2.get_message_by_id(ev[2])
+        assert msg.is_setup_message()
+        assert msg.get_setupcodebegin() == setup_code2[:2]
+
+        lp.sec("process second setup message")
+        msg.continue_key_transfer(setup_code2)
+        assert ac1.get_info()["fingerprint"] == ac2.get_info()["fingerprint"]
+
     def test_qr_setup_contact(self, acfactory, lp):
         ac1, ac2 = acfactory.get_two_online_accounts()
         lp.sec("ac1: create QR code and let ac2 scan it, starting the securejoin")
@@ -562,9 +1012,93 @@ class TestOnlineAccount:
         lp.sec("ac2: start QR-code based join-group protocol")
         ch = ac2.qr_join_chat(qr)
         assert ch.id >= 10
+        # check that at least some of the handshake messages are deleted
+        ac1._evlogger.get_matching("DC_EVENT_IMAP_MESSAGE_DELETED")
+        ac2._evlogger.get_matching("DC_EVENT_IMAP_MESSAGE_DELETED")
         wait_securejoin_inviter_progress(ac1, 1000)
+        ac1._evlogger.get_matching("DC_EVENT_SECUREJOIN_MEMBER_ADDED")
 
-    def test_set_get_profile_image(self, acfactory, data, lp):
+    def test_qr_verified_group_and_chatting(self, acfactory, lp):
+        ac1, ac2 = acfactory.get_two_online_accounts()
+        lp.sec("ac1: create verified-group QR, ac2 scans and joins")
+        chat1 = ac1.create_group_chat("hello", verified=True)
+        assert chat1.is_verified()
+        qr = chat1.get_join_qr()
+        lp.sec("ac2: start QR-code based join-group protocol")
+        chat2 = ac2.qr_join_chat(qr)
+        assert chat2.id >= 10
+        wait_securejoin_inviter_progress(ac1, 1000)
+        ac1._evlogger.get_matching("DC_EVENT_SECUREJOIN_MEMBER_ADDED")
+
+        lp.sec("ac2: read member added message")
+        msg = ac2.wait_next_incoming_message()
+        assert msg.is_encrypted()
+        assert "added" in msg.text.lower()
+
+        lp.sec("ac1: send message")
+        msg_out = chat1.send_text("hello")
+        assert msg_out.is_encrypted()
+
+        lp.sec("ac2: read message and check it's verified chat")
+        msg = ac2.wait_next_incoming_message()
+        assert msg.text == "hello"
+        assert msg.chat.is_verified()
+        assert msg.is_encrypted()
+
+        lp.sec("ac2: send message and let ac1 read it")
+        chat2.send_text("world")
+        msg = ac1.wait_next_incoming_message()
+        assert msg.text == "world"
+        assert msg.is_encrypted()
+
+    def test_set_get_contact_avatar(self, acfactory, data, lp):
+        lp.sec("configuring ac1 and ac2")
+        ac1, ac2 = acfactory.get_two_online_accounts()
+
+        lp.sec("ac1: set own profile image")
+        p = data.get_path("d.png")
+        ac1.set_avatar(p)
+
+        lp.sec("ac1: create 1:1 chat with ac2")
+        chat = self.get_chat(ac1, ac2, both_created=True)
+
+        msg = chat.send_text("hi -- do you see my brand new avatar?")
+        assert not msg.is_encrypted()
+
+        lp.sec("ac2: wait for receiving message and avatar from ac1")
+        msg1 = ac2.wait_next_incoming_message()
+        assert not msg1.chat.is_deaddrop()
+        received_path = msg1.get_sender_contact().get_profile_image()
+        assert open(received_path, "rb").read() == open(p, "rb").read()
+
+        lp.sec("ac2: set own profile image")
+        p = data.get_path("d.png")
+        ac2.set_avatar(p)
+
+        lp.sec("ac2: send back message")
+        m = msg1.chat.send_text("yes, i received your avatar -- how do you like mine?")
+        assert m.is_encrypted()
+
+        lp.sec("ac1: wait for receiving message and avatar from ac2")
+        msg2 = ac1.wait_next_incoming_message()
+        received_path = msg2.get_sender_contact().get_profile_image()
+        assert received_path is not None, "did not get avatar through encrypted message"
+        assert open(received_path, "rb").read() == open(p, "rb").read()
+
+        ac2._evlogger.consume_events()
+        ac1._evlogger.consume_events()
+
+        # XXX not sure if the following is correct / possible. you may remove it
+        lp.sec("ac1: delete profile image from chat, and send message to ac2")
+        ac1.set_avatar(None)
+        m = msg2.chat.send_text("i don't like my avatar anymore and removed it")
+        assert m.is_encrypted()
+
+        lp.sec("ac2: wait for message along with avatar deletion of ac1")
+        msg3 = ac2.wait_next_incoming_message()
+        assert msg3.get_sender_contact().get_profile_image() is None
+
+    def test_set_get_group_image(self, acfactory, data, lp):
         ac1, ac2 = acfactory.get_two_online_accounts()
 
         lp.sec("create unpromoted group chat")
@@ -616,3 +1150,178 @@ class TestOnlineAccount:
         chat1b = ac1.create_chat_by_message(ev[2])
         assert chat1b.get_profile_image() is None
         assert chat.get_profile_image() is None
+
+    def test_send_receive_locations(self, acfactory, lp):
+        now = datetime.utcnow()
+        ac1, ac2 = acfactory.get_two_online_accounts()
+
+        lp.sec("ac1: create chat with ac2")
+        chat1 = self.get_chat(ac1, ac2)
+        chat2 = self.get_chat(ac2, ac1)
+
+        assert not chat1.is_sending_locations()
+        with pytest.raises(ValueError):
+            ac1.set_location(latitude=0.0, longitude=10.0)
+
+        ac1._evlogger.consume_events()
+        ac2._evlogger.consume_events()
+
+        lp.sec("ac1: enable location sending in chat")
+        chat1.enable_sending_locations(seconds=100)
+        assert chat1.is_sending_locations()
+        ac1._evlogger.get_matching("DC_EVENT_SMTP_MESSAGE_SENT")
+
+        ac1.set_location(latitude=2.0, longitude=3.0, accuracy=0.5)
+        ac1._evlogger.get_matching("DC_EVENT_LOCATION_CHANGED")
+        chat1.send_text("hello")
+        ac1._evlogger.get_matching("DC_EVENT_SMTP_MESSAGE_SENT")
+
+        lp.sec("ac2: wait for incoming location message")
+        ac2._evlogger.get_matching("DC_EVENT_INCOMING_MSG")  # "enabled-location streaming"
+
+        # currently core emits location changed before event_incoming message
+        ac2._evlogger.get_matching("DC_EVENT_LOCATION_CHANGED")
+        ac2._evlogger.get_matching("DC_EVENT_INCOMING_MSG")  # text message with location
+
+        locations = chat2.get_locations()
+        assert len(locations) == 1
+        assert locations[0].latitude == 2.0
+        assert locations[0].longitude == 3.0
+        assert locations[0].accuracy == 0.5
+        assert locations[0].timestamp > now
+
+        contact = ac2.create_contact(ac1.get_config("addr"))
+        locations2 = chat2.get_locations(contact=contact)
+        assert len(locations2) == 1
+        assert locations2 == locations
+
+        contact = ac2.create_contact("nonexisting@example.org")
+        locations3 = chat2.get_locations(contact=contact)
+        assert not locations3
+
+
+class TestGroupStressTests:
+    def test_group_many_members_add_leave_remove(self, acfactory, lp):
+        lp.sec("creating and configuring five accounts")
+        accounts = [acfactory.get_online_configuring_account() for i in range(5)]
+        for acc in accounts:
+            wait_configuration_progress(acc, 1000)
+        ac1 = accounts.pop()
+
+        lp.sec("ac1: setting up contacts with 4 other members")
+        contacts = []
+        for acc, name in zip(accounts, list("äöüsr")):
+            contact = ac1.create_contact(acc.get_config("addr"), name=name)
+            contacts.append(contact)
+
+            # make sure we accept the "hi" message
+            ac1.create_chat_by_contact(contact)
+
+            # make sure the other side accepts our messages
+            c1 = acc.create_contact(ac1.get_config("addr"), "ä member")
+            chat1 = acc.create_chat_by_contact(c1)
+
+            # send a message to get the contact key via autocrypt header
+            chat1.send_text("hi")
+            msg = ac1.wait_next_incoming_message()
+            assert msg.text == "hi"
+
+        # Save fifth account for later
+        ac5 = accounts.pop()
+        contact5 = contacts.pop()
+
+        lp.sec("ac1: creating group chat with 3 other members")
+        chat = ac1.create_group_chat("title1")
+        for contact in contacts:
+            chat.add_contact(contact)
+        assert not chat.is_promoted()
+
+        lp.sec("ac1: send mesage to new group chat")
+        msg = chat.send_text("hello")
+        assert chat.is_promoted()
+        assert msg.is_encrypted()
+
+        gossiped_timestamp = chat.get_summary()["gossiped_timestamp"]
+        assert gossiped_timestamp > 0
+
+        num_contacts = len(chat.get_contacts())
+        assert num_contacts == 3 + 1
+
+        lp.sec("ac2: checking that the chat arrived correctly")
+        ac2 = accounts[0]
+        msg = ac2.wait_next_incoming_message()
+        assert msg.text == "hello"
+        print("chat is", msg.chat)
+        assert len(msg.chat.get_contacts()) == 4
+
+        lp.sec("ac3: checking that 'ac4' is a known contact")
+        ac3 = accounts[1]
+        msg3 = ac3.wait_next_incoming_message()
+        assert msg3.text == "hello"
+        ac3_contacts = ac3.get_contacts()
+        assert len(ac3_contacts) == 3
+        ac4_contacts = ac3.get_contacts(query=accounts[2].get_config("addr"))
+        assert len(ac4_contacts) == 1
+
+        lp.sec("ac2: removing one contact")
+        to_remove = contacts[-1]
+        msg.chat.remove_contact(to_remove)
+
+        lp.sec("ac1: receiving system message about contact removal")
+        sysmsg = ac1.wait_next_incoming_message()
+        assert to_remove.addr in sysmsg.text
+        assert len(sysmsg.chat.get_contacts()) == 3
+
+        # Receiving message about removed contact does not reset gossip
+        assert chat.get_summary()["gossiped_timestamp"] == gossiped_timestamp
+
+        lp.sec("ac1: sending another message to the chat")
+        chat.send_text("hello2")
+        msg = ac2.wait_next_incoming_message()
+        assert msg.text == "hello2"
+        assert chat.get_summary()["gossiped_timestamp"] == gossiped_timestamp
+
+        lp.sec("ac1: adding fifth member to the chat")
+        chat.add_contact(contact5)
+        # Additng contact to chat resets gossiped_timestamp
+        assert chat.get_summary()["gossiped_timestamp"] >= gossiped_timestamp
+
+        lp.sec("ac2: receiving system message about contact addition")
+        sysmsg = ac2.wait_next_incoming_message()
+        assert contact5.addr in sysmsg.text
+        assert len(sysmsg.chat.get_contacts()) == 4
+
+        lp.sec("ac5: waiting for message about addition to the chat")
+        sysmsg = ac5.wait_next_incoming_message()
+        msg = sysmsg.chat.send_text("hello!")
+        # Message should be encrypted because keys of other members are gossiped
+        assert msg.is_encrypted()
+
+
+class TestOnlineConfigureFails:
+    def test_invalid_password(self, acfactory):
+        ac1, configdict = acfactory.get_online_config()
+        ac1.configure(addr=configdict["addr"], mail_pw="123")
+        ac1.start_threads()
+        wait_configuration_progress(ac1, 500)
+        ev1 = ac1._evlogger.get_matching("DC_EVENT_ERROR_NETWORK")
+        assert "cannot login" in ev1[2].lower()
+        wait_configuration_progress(ac1, 0, 0)
+
+    def test_invalid_user(self, acfactory):
+        ac1, configdict = acfactory.get_online_config()
+        ac1.configure(addr="x" + configdict["addr"], mail_pw=configdict["mail_pw"])
+        ac1.start_threads()
+        wait_configuration_progress(ac1, 500)
+        ev1 = ac1._evlogger.get_matching("DC_EVENT_ERROR_NETWORK")
+        assert "cannot login" in ev1[2].lower()
+        wait_configuration_progress(ac1, 0, 0)
+
+    def test_invalid_domain(self, acfactory):
+        ac1, configdict = acfactory.get_online_config()
+        ac1.configure(addr=configdict["addr"] + "x", mail_pw=configdict["mail_pw"])
+        ac1.start_threads()
+        wait_configuration_progress(ac1, 500)
+        ev1 = ac1._evlogger.get_matching("DC_EVENT_ERROR_NETWORK")
+        assert "could not connect" in ev1[2].lower()
+        wait_configuration_progress(ac1, 0, 0)

python/tests/test_increation.py

@@ -1,10 +1,49 @@
 from __future__ import print_function
+
+import os.path
+import shutil
+
+import pytest
 from filecmp import cmp
-from deltachat import const
+
 from conftest import wait_configuration_progress, wait_msgs_changed
+from deltachat import const
 
 
-class TestInCreation:
+class TestOnlineInCreation:
+    def test_increation_not_blobdir(self, tmpdir, acfactory, lp):
+        ac1 = acfactory.get_online_configuring_account()
+        ac2 = acfactory.get_online_configuring_account()
+        wait_configuration_progress(ac1, 1000)
+        wait_configuration_progress(ac2, 1000)
+
+        c2 = ac1.create_contact(email=ac2.get_config("addr"))
+        chat = ac1.create_chat_by_contact(c2)
+
+        lp.sec("Creating in-creation file outside of blobdir")
+        assert tmpdir.strpath != ac1.get_blobdir()
+        src = tmpdir.join('file.txt').ensure(file=1)
+        with pytest.raises(Exception):
+            chat.prepare_message_file(src.strpath)
+
+    def test_no_increation_copies_to_blobdir(self, tmpdir, acfactory, lp):
+        ac1 = acfactory.get_online_configuring_account()
+        ac2 = acfactory.get_online_configuring_account()
+        wait_configuration_progress(ac1, 1000)
+        wait_configuration_progress(ac2, 1000)
+
+        c2 = ac1.create_contact(email=ac2.get_config("addr"))
+        chat = ac1.create_chat_by_contact(c2)
+
+        lp.sec("Creating file outside of blobdir")
+        assert tmpdir.strpath != ac1.get_blobdir()
+        src = tmpdir.join('file.txt')
+        src.write("hello there\n")
+        chat.send_file(src.strpath)
+
+        blob_src = os.path.join(ac1.get_blobdir(), 'file.txt')
+        assert os.path.exists(blob_src), "file.txt not copied to blobdir"
+
     def test_forward_increation(self, acfactory, data, lp):
         ac1 = acfactory.get_online_configuring_account()
         ac2 = acfactory.get_online_configuring_account()
@@ -17,7 +56,10 @@ class TestInCreation:
         wait_msgs_changed(ac1, 0, 0)  # why no chat id?
 
         lp.sec("create a message with a file in creation")
-        path = data.get_path("d.png")
+        orig = data.get_path("d.png")
+        path = os.path.join(ac1.get_blobdir(), 'd.png')
+        with open(path, "x") as fp:
+            fp.write("preparing")
         prepared_original = chat.prepare_message_file(path)
         assert prepared_original.is_out_preparing()
         wait_msgs_changed(ac1, chat.id, prepared_original.id)
@@ -38,6 +80,7 @@ class TestInCreation:
 
         lp.sec("finish creating the file and send it")
         assert prepared_original.is_out_preparing()
+        shutil.copyfile(orig, path)
         chat.send_prepared(prepared_original)
         assert prepared_original.is_out_pending() or prepared_original.is_out_delivered()
         wait_msgs_changed(ac1, chat.id, prepared_original.id)
@@ -57,13 +100,13 @@ class TestInCreation:
 
         lp.sec("wait1 for original or forwarded messages to arrive")
         ev1 = ac2._evlogger.get_matching("DC_EVENT_MSGS_CHANGED")
-        assert ev1[1] >= const.DC_CHAT_ID_LAST_SPECIAL
+        assert ev1[1] > const.DC_CHAT_ID_LAST_SPECIAL
         received_original = ac2.get_message_by_id(ev1[2])
-        assert cmp(received_original.filename, path, False)
+        assert cmp(received_original.filename, orig, shallow=False)
 
         lp.sec("wait2 for original or forwarded messages to arrive")
         ev2 = ac2._evlogger.get_matching("DC_EVENT_MSGS_CHANGED")
-        assert ev2[1] >= const.DC_CHAT_ID_LAST_SPECIAL
+        assert ev2[1] > const.DC_CHAT_ID_LAST_SPECIAL
         assert ev2[1] != ev1[1]
         received_copy = ac2.get_message_by_id(ev2[2])
-        assert cmp(received_copy.filename, path, False)
+        assert cmp(received_copy.filename, orig, shallow=False)

python/tests/test_lowlevel.py

@@ -1,5 +1,5 @@
 from __future__ import print_function
-from deltachat import capi, const, set_context_callback, clear_context_callback
+from deltachat import capi, cutil, const, set_context_callback, clear_context_callback
 from deltachat.capi import ffi
 from deltachat.capi import lib
 from deltachat.account import EventLogger
@@ -41,7 +41,7 @@ def test_dc_close_events(tmpdir):
             else:
                 print("skipping event", *ev)
 
-    find("disconnecting INBOX-watch")
+    find("disconnecting inbox-thread")
     find("disconnecting sentbox-thread")
     find("disconnecting mvbox-thread")
     find("disconnecting SMTP")
@@ -59,6 +59,16 @@ def test_wrong_db(tmpdir):
     assert not lib.dc_open(dc_context, p.strpath.encode("ascii"), ffi.NULL)
 
 
+def test_empty_blobdir(tmpdir):
+    # Apparently some client code expects this to be the same as passing NULL.
+    ctx = ffi.gc(
+        lib.dc_context_new(lib.py_dc_callback, ffi.NULL, ffi.NULL),
+        lib.dc_context_unref,
+    )
+    db_fname = tmpdir.join("hello.db")
+    assert lib.dc_open(ctx, db_fname.strpath.encode("ascii"), b"")
+
+
 def test_event_defines():
     assert const.DC_EVENT_INFO == 100
     assert const.DC_CONTACT_ID_SELF
@@ -83,3 +93,65 @@ def test_markseen_invalid_message_ids(acfactory):
     msg_ids = [9]
     lib.dc_markseen_msgs(ac1._dc_context, msg_ids, len(msg_ids))
     ac1._evlogger.ensure_event_not_queued("DC_EVENT_WARNING|DC_EVENT_ERROR")
+
+
+def test_get_special_message_id_returns_empty_message(acfactory):
+    ac1 = acfactory.get_configured_offline_account()
+    for i in range(1, 10):
+        msg = ac1.get_message_by_id(i)
+        assert msg.id == 0
+
+
+def test_provider_info():
+    provider = lib.dc_provider_new_from_email(cutil.as_dc_charpointer("ex@example.com"))
+    assert cutil.from_dc_charpointer(
+        lib.dc_provider_get_overview_page(provider)
+    ) == "https://providers.delta.chat/example.com"
+    assert cutil.from_dc_charpointer(lib.dc_provider_get_name(provider)) == "Example"
+    assert cutil.from_dc_charpointer(lib.dc_provider_get_markdown(provider)) == "\n..."
+    assert cutil.from_dc_charpointer(lib.dc_provider_get_status_date(provider)) == "2018-09"
+    assert lib.dc_provider_get_status(provider) == const.DC_PROVIDER_STATUS_PREPARATION
+
+
+def test_provider_info_none():
+    assert lib.dc_provider_new_from_email(cutil.as_dc_charpointer("email@unexistent.no")) == ffi.NULL
+
+
+def test_get_info_closed():
+    ctx = ffi.gc(
+        lib.dc_context_new(lib.py_dc_callback, ffi.NULL, ffi.NULL),
+        lib.dc_context_unref,
+    )
+    info = cutil.from_dc_charpointer(lib.dc_get_info(ctx))
+    assert 'deltachat_core_version' in info
+    assert 'database_dir' not in info
+
+
+def test_get_info_open(tmpdir):
+    ctx = ffi.gc(
+        lib.dc_context_new(lib.py_dc_callback, ffi.NULL, ffi.NULL),
+        lib.dc_context_unref,
+    )
+    db_fname = tmpdir.join("test.db")
+    lib.dc_open(ctx, db_fname.strpath.encode("ascii"), ffi.NULL)
+    info = cutil.from_dc_charpointer(lib.dc_get_info(ctx))
+    assert 'deltachat_core_version' in info
+    assert 'database_dir' in info
+
+
+def test_is_open_closed():
+    ctx = ffi.gc(
+        lib.dc_context_new(lib.py_dc_callback, ffi.NULL, ffi.NULL),
+        lib.dc_context_unref,
+    )
+    assert lib.dc_is_open(ctx) == 0
+
+
+def test_is_open_actually_open(tmpdir):
+    ctx = ffi.gc(
+        lib.dc_context_new(lib.py_dc_callback, ffi.NULL, ffi.NULL),
+        lib.dc_context_unref,
+    )
+    db_fname = tmpdir.join("test.db")
+    lib.dc_open(ctx, db_fname.strpath.encode("ascii"), ffi.NULL)
+    assert lib.dc_is_open(ctx) == 1

python/tests/test_provider_info.py

@@ -0,0 +1,27 @@
+import pytest
+
+from deltachat import const
+from deltachat import provider
+
+
+def test_provider_info_from_email():
+    example = provider.Provider.from_email("email@example.com")
+    assert example.overview_page == "https://providers.delta.chat/example.com"
+    assert example.name == "Example"
+    assert example.markdown == "\n..."
+    assert example.status_date == "2018-09"
+    assert example.status == const.DC_PROVIDER_STATUS_PREPARATION
+
+
+def test_provider_info_from_domain():
+    example = provider.Provider("example.com")
+    assert example.overview_page == "https://providers.delta.chat/example.com"
+    assert example.name == "Example"
+    assert example.markdown == "\n..."
+    assert example.status_date == "2018-09"
+    assert example.status == const.DC_PROVIDER_STATUS_PREPARATION
+
+
+def test_provider_info_none():
+    with pytest.raises(provider.ProviderNotFoundError):
+        provider.Provider.from_email("email@unexistent.no")

python/tox.ini

@@ -1,37 +1,38 @@
 [tox]
 # make sure to update environment list in travis.yml and appveyor.yml
 envlist =
-    py35
+    py37
     lint
     auditwheels
 
 [testenv]
 commands = 
-    pytest -v -rsXx {posargs:tests}
+    pytest -n6 --reruns 2 --reruns-delay 5 -v -rsXx {posargs:tests} 
     python tests/package_wheels.py {toxworkdir}/wheelhouse
 passenv = 
     TRAVIS 
     DCC_RS_DEV
     DCC_RS_TARGET
     DCC_PY_LIVECONFIG
+    CARGO_TARGET_DIR
+    RUSTC_WRAPPER
 deps = 
     pytest
     pytest-rerunfailures
     pytest-timeout
     pytest-xdist
-    auditwheel
     pdbpp
     requests
 
 [testenv:auditwheels]
 skipsdist = True
+deps = auditwheel
 commands = 
     python tests/auditwheels.py {toxworkdir}/wheelhouse
 
-
 [testenv:lint]
 skipsdist = True
-usedevelop = True
+skip_install = True
 deps =
     flake8
     # pygments required by rst-lint
@@ -43,19 +44,29 @@ commands =
     rst-lint --encoding 'utf-8' README.rst
 
 [testenv:doc]
-basepython = python3.5
+changedir=doc
 deps =
-    sphinx==2.0.1
+    sphinx==2.2.0
     breathe
-
-changedir = doc
 commands =
-    sphinx-build -w docker-toxdoc-warnings.log -b html . _build/html
+    sphinx-build -Q -w toxdoc-warnings.log -b html . _build/html
+
+
+[testenv:lintdoc]
+skipsdist = True
+usedevelop = True
+deps =
+    {[testenv:lint]deps}
+    {[testenv:doc]deps}
+commands =
+    {[testenv:lint]commands}
+    {[testenv:doc]commands}
+
 
 
 [pytest]
-addopts = -v -rs --reruns 3 --reruns-delay 2
-python_files = tests/test_*.py 
+addopts = -v -ra
+python_files = tests/test_*.py
 norecursedirs = .tox 
 xfail_strict=true
 timeout = 60 

run-integration-tests.sh

@@ -23,7 +23,7 @@ if [ $? != 0 ]; then
 fi
 
 pushd python
-if [ -e "./liveconfig" && -z "$DCC_PY_LIVECONFIG" ]; then
+if [ -e "./liveconfig" -a -z "$DCC_PY_LIVECONFIG" ]; then
     export DCC_PY_LIVECONFIG=liveconfig
 fi
 tox "$@"

rust-toolchain

@@ -1 +1 @@
-nightly-2019-08-13
+nightly-2019-11-06

set_core_version.py

@@ -0,0 +1,65 @@
+#!/usr/bin/env python
+
+import os
+import sys
+import re
+import pathlib
+import subprocess
+
+rex = re.compile(r'version = "(\S+)"')
+
+def read_toml_version(relpath):
+    p = pathlib.Path(relpath)
+    assert p.exists()
+    for line in open(str(p)):
+        m = rex.match(line)
+        if m is not None:
+            return m.group(1)
+    raise ValueError("no version found in {}".format(relpath))
+
+def replace_toml_version(relpath, newversion):
+    p = pathlib.Path(relpath)
+    assert p.exists()
+    tmp_path = str(p) + "_tmp"
+    with open(tmp_path, "w") as f:
+        for line in open(str(p)):
+            m = rex.match(line)
+            if m is not None:
+                f.write('version = "{}"\n'.format(newversion))
+            else:
+                f.write(line)
+    os.rename(tmp_path, str(p))
+
+if __name__ == "__main__":
+
+    if len(sys.argv) < 2:
+        for x in ("Cargo.toml", "deltachat-ffi/Cargo.toml"):
+            print("{}: {}".format(x, read_toml_version(x)))
+        raise SystemExit("need argument: new version, example 1.0.0-beta.27")
+    newversion = sys.argv[1]
+    if newversion.count(".") < 2:
+        raise SystemExit("need at least two dots in version")
+
+    core_toml = read_toml_version("Cargo.toml")
+    ffi_toml = read_toml_version("deltachat-ffi/Cargo.toml")
+    assert core_toml == ffi_toml, (core_toml, ffi_toml)
+
+    for line in open("CHANGELOG.md"):
+        ## 1.0.0-beta5
+        if line.startswith("## "):
+            if line[2:].strip().startswith(newversion):
+                break
+    else:
+        raise SystemExit("CHANGELOG.md contains no entry for version: {}".format(newversion))
+
+    replace_toml_version("Cargo.toml", newversion)
+    replace_toml_version("deltachat-ffi/Cargo.toml", newversion)
+
+    subprocess.call(["cargo", "check"])
+    subprocess.call(["git", "add", "-u"])
+    # subprocess.call(["cargo", "update", "-p", "deltachat"])
+
+    print("after commit make sure to: ")
+    print("")
+    print("   git tag {}".format(newversion))
+    print("")

spec.md

@@ -1,8 +1,10 @@
 # Chat-over-Email specification
 
-Version 0.19.0
+Version 0.20.0
 
-This document describes how emails can be used to implement typical messenger functions while staying compatible to existing MUAs.
+This document describes how emails can be used
+to implement typical messenger functions
+while staying compatible to existing MUAs.
 
 - [Encryption](#encryption)
 - [Outgoing messages](#outgoing-messages)
@@ -20,10 +22,14 @@ This document describes how emails can be used to implement typical messenger fu
 
 # Encryption
 
-Messages SHOULD be encrypted by the [Autocrypt](https://autocrypt.org/level1.html) standard;  `prefer-encrypt=mutual` MAY be set by default.
+Messages SHOULD be encrypted by the
+[Autocrypt](https://autocrypt.org/level1.html) standard;
+`prefer-encrypt=mutual` MAY be set by default.
 
-Meta data (at least the subject and all chat-headers) SHOULD be encrypted by the [Memoryhole](https://github.com/autocrypt/memoryhole) standard.
-If Memoryhole is not used, the subject of encrypted messages SHOULD be replaced by the string
+Meta data (at least the subject and all chat-headers) SHOULD be encrypted
+by the [Memoryhole](https://github.com/autocrypt/memoryhole) standard.
+If Memoryhole is not used,
+the subject of encrypted messages SHOULD be replaced by the string
 `Chat: Encrypted message` where the part after the colon MAY be localized.
 
 
@@ -31,7 +37,8 @@ If Memoryhole is not used, the subject of encrypted messages SHOULD be replaced
 
 Messengers MUST add a `Chat-Version: 1.0` header to outgoing messages.
 For filtering and smart appearance of the messages in normal MUAs,
-the `Subject` header SHOULD start with the characters `Chat:` and SHOULD be an excerpt of the message.
+the `Subject` header SHOULD start with the characters `Chat:`
+and SHOULD be an excerpt of the message.
 Replies to messages MAY follow the typical `Re:`-format.
 
 The body MAY contain text which MUST have the content type `text/plain`
@@ -41,8 +48,8 @@ The text MAY be divided into a user-text-part and a footer-part using the
 line `-- ` (minus, minus, space, lineend).
 
 The user-text-part MUST contain only user generated content.
-User generated content are eg. texts a user has actually typed or pasted or
-forwarded from another user.
+User generated content are eg. texts a user has actually typed
+or pasted or forwarded from another user.
 Full quotes, footers or sth. like that MUST NOT go to the user-text-part.
 
     From: sender@domain
@@ -56,14 +63,19 @@ Full quotes, footers or sth. like that MUST NOT go to the user-text-part.
 
 # Incoming messages
 
-The `Chat-Version` header MAY be used to detect if a messages comes from a compatible messenger.
+The `Chat-Version` header MAY be used
+to detect if a messages comes from a compatible messenger.
 
-The `Subject` header MUST NOT be used to detect compatible messengers, groups or whatever.
+The `Subject` header MUST NOT be used
+to detect compatible messengers, groups or whatever.
 
-Messenger SHOULD show the `Subject` if the message comes from a normal MUA together with the email-body.
-The email-body SHOULD be converted to plain text, full-quotes and similar regions SHOULD be cut.
+Messenger SHOULD show the `Subject`
+if the message comes from a normal MUA together with the email-body.
+The email-body SHOULD be converted
+to plain text, full-quotes and similar regions SHOULD be cut.
 
-Attachments SHOULD be shown where possible.  If an attachment cannot be shown, a non-distracting warning SHOULD be printed.
+Attachments SHOULD be shown where possible.
+If an attachment cannot be shown, a non-distracting warning SHOULD be printed.
 
 
 # Forwarded messages
@@ -90,21 +102,26 @@ which SHOULD be anonymized or just a placeholder.
     Hello world!
 
 Incoming forwarded messages are detected by the header.
-The messenger SHOULD mark these messages in a way that it becomes obvious
-that the message is not created by the sender.
-Note that most messengers do not show the original sender with forwarded messages
+The messenger SHOULD mark these messages in a way that
+it becomes obvious that the message is not created by the sender.
+Note that most messengers do not show the original sender of forwarded messages
 but MUAs typically expose the sender in the UI.
 
 
 # Groups
 
-Groups are chats with usually more than one recipient, each defined by an email-address.
+Groups are chats with usually more than one recipient,
+each defined by an email-address.
 The sender plus the recipients are the group members.
 
-To allow different groups with the same members, groups are identified by a group-id.
-The group-id MUST be created only from the characters `0`-`9`, `A`-`Z`, `a`-`z` `_` and `-`.
+To allow different groups with the same members,
+groups are identified by a group-id.
+The group-id MUST be created only from the characters
+`0`-`9`, `A`-`Z`, `a`-`z` `_` and `-`
+and MUST have a length of at least 11 characters.
 
-Groups MUST have a group-name. The group-name is any non-zero-length UTF-8 string.
+Groups MUST have a group-name.
+The group-name is any non-zero-length UTF-8 string.
 
 Groups MAY have a group-image.
 
@@ -113,57 +130,77 @@ Groups MAY have a group-image.
 
 All group members MUST be added to the `From`/`To` headers.
 The group-id MUST be written to the `Chat-Group-ID` header.
-The group-name MUST be written to `Chat-Group-Name` header (the forced presence of this header makes it easier to join a group chat on a second device any time).
+The group-name MUST be written to `Chat-Group-Name` header
+(the forced presence of this header makes it easier
+to join a group chat on a second device any time).
 
-The `Subject` header of outgoing group messages SHOULD start with the characters `Chat:` followed by the group-name and a colon followed by an excerpt of the message.
+The `Subject` header of outgoing group messages
+SHOULD start with the characters `Chat:`
+followed by the group-name and a colon followed by an excerpt of the message.
 
-To identify the group-id on replies from normal MUAs, the group-id MUST also be added to
-the message-id of outgoing messages.  The message-id MUST have the
-format `Gr.<group-id>.<unique data>`.
+To identify the group-id on replies from normal MUAs,
+the group-id MUST also be added to the message-id of outgoing messages.
+The message-id MUST have the format `Gr.<group-id>.<unique data>`.
 
     From: member1@domain
     To: member2@domain, member3@domain
     Chat-Version: 1.0
-    Chat-Group-ID: 1234xyZ
+    Chat-Group-ID: 12345uvwxyZ
     Chat-Group-Name: My Group
-    Message-ID: Gr.1234xyZ.0001@domain
+    Message-ID: Gr.12345uvwxyZ.0001@domain
     Subject: Chat: My Group: Hello group ...
 
     Hello group - this group contains three members
 
-Messengers adding the member list in the form `Name <email-address>` MUST take care only to spread the names authorized by the contacts themselves.
-Otherwise, names as _Daddy_ or _Honey_ may be spread (this issue is also true for normal MUAs, however, for more contact- and chat-centralized apps
+Messengers adding the member list in the form `Name <email-address>`
+MUST take care only to distribute the names authorized by the contacts themselves.
+Otherwise, names as _Daddy_ or _Honey_ may be distributed
+(this issue is also true for normal MUAs, however,
+for more contact- and chat-centralized apps
 such situations happen more frequently).
 
 
 ## Incoming group messages
 
-The messenger MUST search incoming messages for the group-id in the following headers: `Chat-Group-ID`,
+The messenger MUST search incoming messages for the group-id
+in the following headers: `Chat-Group-ID`,
 `Message-ID`, `In-Reply-To` and `References` (in this order).
 
-If the messenger finds a valid and existent group-id, the message SHOULD be assigned to the given group.
-If the messenger finds a valid but not existent group-id, the messenger MAY create a new group.
-If no group-id is found, the message MAY be assigned to a normal single-user chat with the email-address given in `From`.
+If the messenger finds a valid and existent group-id,
+the message SHOULD be assigned to the given group.
+If the messenger finds a valid but not existent group-id,
+the messenger MAY create a new group.
+If no group-id is found,
+the message MAY be assigned
+to a normal single-user chat with the email-address given in `From`.
 
 
 ## Add and remove members
 
-Messenger clients MUST construct the member list from the `From`/`To` headers only on the first group message or if they see a `Chat-Group-Member-Added` or `Chat-Group-Member-Removed` action header.
-Both headers MUST have the email-address of the added or removed member as the value.
-Messenger clients MUST NOT construct the member list on other group messages (this is to avoid accidentally altered To-lists in normal MUAs; the user
-does not expect adding a user to a _message_ will also add him to the _group_ "forever").
+Messenger clients MUST construct the member list
+from the `From`/`To` headers only on the first group message
+or if they see a `Chat-Group-Member-Added`
+or `Chat-Group-Member-Removed` action header.
+Both headers MUST have the email-address
+of the added or removed member as the value.
+Messenger clients MUST NOT construct the member list
+on other group messages
+(this is to avoid accidentally altered To-lists in normal MUAs;
+the user does not expect adding a user to a _message_
+will also add him to the _group_ "forever").
 
 The messenger SHOULD send an explicit mail for each added or removed member.
-The body of the message SHOULD contain a localized description about what happened
+The body of the message SHOULD contain
+a localized description about what happened
 and the message SHOULD appear as a message or action from the sender.
 
     From: member1@domain
     To: member2@domain, member3@domain, member4@domain
     Chat-Version: 1.0
-    Chat-Group-ID: 1234xyZ
+    Chat-Group-ID: 12345uvwxyZ
     Chat-Group-Name: My Group
     Chat-Group-Member-Added: member4@domain
-    Message-ID: Gr.1234xyZ.0002@domain
+    Message-ID: Gr.12345uvwxyZ.0002@domain
     Subject: Chat: My Group: Hello, ...
 
     Hello, I've added member4@domain to our group.  Now we have 4 members.
@@ -173,10 +210,10 @@ To remove a member:
     From: member1@domain
     To: member2@domain, member3@domain
     Chat-Version: 1.0
-    Chat-Group-ID: 1234xyZ
+    Chat-Group-ID: 12345uvwxyZ
     Chat-Group-Name: My Group
     Chat-Group-Member-Removed: member4@domain
-    Message-ID: Gr.1234xyZ.0003@domain
+    Message-ID: Gr.12345uvwxyZ.0003@domain
     Subject: Chat: My Group: Hello, ...
 
     Hello, I've removed member4@domain from our group.  Now we have 3 members.
@@ -190,16 +227,17 @@ with the value set to the old group name to all group members.
 The new group name goes to the header `Chat-Group-Name`.
 
 The messenger SHOULD send an explicit mail for each name change.
-The body of the message SHOULD contain a localized description about what happened
+The body of the message SHOULD contain
+a localized description about what happened
 and the message SHOULD appear as a message or action from the sender.
 
     From: member1@domain
     To: member2@domain, member3@domain
     Chat-Version: 1.0
-    Chat-Group-ID: 1234xyZ
+    Chat-Group-ID: 12345uvwxyZ
     Chat-Group-Name: Our Group
     Chat-Group-Name-Changed: My Group
-    Message-ID: Gr.1234xyZ.0004@domain
+    Message-ID: Gr.12345uvwxyZ.0004@domain
     Subject: Chat: Our Group: Hello, ...
 
     Hello, I've changed the group name from "My Group" to "Our Group".
@@ -208,23 +246,27 @@ and the message SHOULD appear as a message or action from the sender.
 ## Set group image
 
 A group MAY have a group-image.
-To change or set the group-image, the messenger MUST attach an image file to a message and MUST add the header `Chat-Group-Image` with the
-value set to the image name.
+To change or set the group-image,
+the messenger MUST attach an image file to a message
+and MUST add the header `Chat-Group-Avatar`
+with the value set to the image name.
 
-To remove the group-image, the messenger MUST add the header `Chat-Group-Image: 0`.
+To remove the group-image,
+the messenger MUST add the header `Chat-Group-Avatar: 0`.
 
 The messenger SHOULD send an explicit mail for each group image change.
-The body of the message SHOULD contain a localized description about what happened
+The body of the message SHOULD contain
+a localized description about what happened
 and the message SHOULD appear as a message or action from the sender.
 
 
     From: member1@domain
     To: member2@domain, member3@domain
     Chat-Version: 1.0
-    Chat-Group-ID: 1234xyZ
+    Chat-Group-ID: 12345uvwxyZ
     Chat-Group-Name: Our Group
-    Chat-Group-Image: image.jpg
-    Message-ID: Gr.1234xyZ.0005@domain
+    Chat-Group-Avatar: image.jpg
+    Message-ID: Gr.12345uvwxyZ.0005@domain
     Subject: Chat: Our Group: Hello, ...
     Content-Type: multipart/mixed; boundary="==break=="
 
@@ -239,26 +281,35 @@ and the message SHOULD appear as a message or action from the sender.
     /9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAYEBQYFBAYGBQYHBw ...
     --==break==--
 
-The image format SHOULD be image/jpeg or image/png. To save data, it is RECOMMENDED to add a `Chat-Group-Image` only on image changes.
+The image format SHOULD be image/jpeg or image/png.
+To save data, it is RECOMMENDED
+to add a `Chat-Group-Avatar` only on image changes.
 
 
 # Set profile image
 
-A user MAY have a profile-image that MAY be spread to his contacts.
-To change or set the profile-image, the messenger MUST attach an image file to a message and MUST add the header `Chat-Profile-Image` with the
-value set to the image name.
+A user MAY have a profile-image that MAY be distributed to their contacts.
+To change or set the profile-image,
+the messenger MUST attach an image file to a message
+and MUST add the header `Chat-User-Avatar`
+with the value set to the image name.
 
-To remove the profile-image, the messenger MUST add the header `Chat-Profile-Image: 0`.
+To remove the profile-image,
+the messenger MUST add the header `Chat-User-Avatar: 0`.
 
-To spread the image, the messenger MAY send the profile image together with the next mail to a given contact
-(to do this only once, the messenger has to keep a `profile_image_update_state` somewhere).
-Alternatively, the messenger MAY send an explicit mail for each profile-image change to all contacts using a compatible messenger.
+To distribute the image,
+the messenger MAY send the profile image
+together with the next mail to a given contact
+(to do this only once,
+the messenger has to keep a `user_avatar_update_state` somewhere).
+Alternatively, the messenger MAY send an explicit mail
+for each profile-image change to all contacts using a compatible messenger.
 The messenger SHOULD NOT send an explicit mail to normal MUAs.
 
     From: sender@domain
     To: rcpt@domain
     Chat-Version: 1.0
-    Chat-Profile-Image: photo.jpg
+    Chat-User-Avatar: photo.jpg
     Subject: Chat: Hello, ...
     Content-Type: multipart/mixed; boundary="==break=="
 
@@ -273,35 +324,47 @@ The messenger SHOULD NOT send an explicit mail to normal MUAs.
     AKCgkJi3j4l5kjoldfUAKCgkJi3j4lldfHjgWICwgIEBQYFBA ...
     --==break==--
 
-The image format SHOULD be image/jpeg or image/png. Note that `Chat-Profile-Image` may appear together with all other headers, eg. there may be a
-`Chat-Profile-Image` and a `Chat-Group-Image` header in the same message. To save data, it is RECOMMENDED to add a `Chat-Profile-Image` header only on image changes.
+The image format SHOULD be image/jpeg or image/png.
+Note that `Chat-User-Avatar` may appear together with all other headers,
+eg. there may be a `Chat-User-Avatar` and a `Chat-Group-Avatar` header
+in the same message.
+To save data, it is RECOMMENDED to add a `Chat-User-Avatar` header
+only on image changes.
 
 
 # Miscellaneous
 
-Messengers SHOULD use the header `Chat-Predecessor` instead of `In-Reply-To` as
-the latter one results in infinite threads on typical MUAs.
+Messengers SHOULD use the header `In-Reply-To` as usual.
 
-Messengers SHOULD add a `Chat-Voice-message: 1` header if an attached audio file is a voice message.
+Messengers SHOULD add a `Chat-Voice-message: 1` header
+if an attached audio file is a voice message.
 
-Messengers MAY add a `Chat-Duration` header to specify the duration of attached audio or video files.
+Messengers MAY add a `Chat-Duration` header
+to specify the duration of attached audio or video files.
 The value MUST be the duration in milliseconds.
 This allows the receiver to show the time without knowing the file format.
 
-    Chat-Predecessor: foo123@domain
+    In-Reply-To: Gr.12345uvwxyZ.0005@domain
     Chat-Voice-Message: 1
     Chat-Duration: 10000
 
-Messengers MAY send and receive Message Disposition Notifications (MDNs, [RFC 8098](https://tools.ietf.org/html/rfc8098), [RFC 3503](https://tools.ietf.org/html/rfc3503))
-using the `Chat-Disposition-Notification-To` header instead of the `Disposition-Notification-To` (which unfortunately forces many other MUAs to send weird mails not following any
-standard).
+Messengers MAY send and receive Message Disposition Notifications
+(MDNs, [RFC 8098](https://tools.ietf.org/html/rfc8098),
+[RFC 3503](https://tools.ietf.org/html/rfc3503))
+using the `Chat-Disposition-Notification-To` header
+instead of the `Disposition-Notification-To`
+(which unfortunately forces many other MUAs
+to send weird mails not following any standard).
 
 
 ## Sync messages
 
-If some action is required by a message header, the action should only be performed if the _effective date_ is newer than the date the last action was performed.
+If some action is required by a message header,
+the action should only be performed if the _effective date_ is newer
+than the date the last action was performed.
 
-We define the effective date of a message as the sending time of the message as indicated by its Date header,
+We define the effective date of a message
+as the sending time of the message as indicated by its Date header,
 or the time of first receipt if that date is in the future or unavailable.
 
 

src/aheader.rs

@@ -1,12 +1,14 @@
+//! # Autocrypt header module
+//!
+//! Parse and create [Autocrypt-headers](https://autocrypt.org/en/latest/level1.html#the-autocrypt-header).
+
 use std::collections::BTreeMap;
-use std::ffi::CStr;
 use std::str::FromStr;
 use std::{fmt, str};
 
-use mmime::mailimf_types::*;
-
 use crate::constants::*;
 use crate::contact::*;
+use crate::context::Context;
 use crate::key::*;
 
 /// Possible values for encryption preference
@@ -40,13 +42,13 @@ impl str::FromStr for EncryptPreference {
     fn from_str(s: &str) -> Result<Self, Self::Err> {
         match s {
             "mutual" => Ok(EncryptPreference::Mutual),
-            "reset" => Ok(EncryptPreference::Reset),
-            _ => Ok(EncryptPreference::NoPreference),
+            "nopreference" => Ok(EncryptPreference::NoPreference),
+            _ => Err(()),
         }
     }
 }
 
-/// Parse and create [Autocrypt-headers](https://autocrypt.org/en/latest/level1.html#the-autocrypt-header).
+/// Autocrypt header
 #[derive(Debug)]
 pub struct Aheader {
     pub addr: String,
@@ -55,6 +57,7 @@ pub struct Aheader {
 }
 
 impl Aheader {
+    /// Creates new autocrypt header
     pub fn new(addr: String, public_key: Key, prefer_encrypt: EncryptPreference) -> Self {
         Aheader {
             addr,
@@ -63,66 +66,54 @@ impl Aheader {
         }
     }
 
-    pub fn from_imffields(wanted_from: &str, header: *const mailimf_fields) -> Option<Self> {
-        if header.is_null() {
-            return None;
-        }
+    pub fn from_headers(
+        context: &Context,
+        wanted_from: &str,
+        headers: &[mailparse::MailHeader<'_>],
+    ) -> Option<Self> {
+        use mailparse::MailHeaderMap;
 
-        let mut fine_header = None;
-        let mut cur = unsafe { (*(*header).fld_list).first };
-
-        while !cur.is_null() {
-            let field = unsafe { (*cur).data as *mut mailimf_field };
-            if !field.is_null()
-                && unsafe { (*field).fld_type } == MAILIMF_FIELD_OPTIONAL_FIELD as libc::c_int
-            {
-                let optional_field = unsafe { (*field).fld_data.fld_optional_field };
-                if !optional_field.is_null()
-                    && unsafe { !(*optional_field).fld_name.is_null() }
-                    && unsafe { CStr::from_ptr((*optional_field).fld_name).to_str().unwrap() }
-                        == "Autocrypt"
-                {
-                    let value = unsafe {
-                        CStr::from_ptr((*optional_field).fld_value)
-                            .to_str()
-                            .unwrap()
-                    };
-
-                    match Self::from_str(value) {
-                        Ok(test) => {
-                            if addr_cmp(&test.addr, wanted_from) {
-                                if fine_header.is_none() {
-                                    fine_header = Some(test);
-                                } else {
-                                    // TODO: figure out what kind of error case this is
-                                    return None;
-                                }
-                            }
-                        }
-                        _ => {}
+        if let Ok(Some(value)) = headers.get_first_value("Autocrypt") {
+            match Self::from_str(&value) {
+                Ok(header) => {
+                    if addr_cmp(&header.addr, wanted_from) {
+                        return Some(header);
                     }
                 }
+                Err(err) => {
+                    warn!(
+                        context,
+                        "found invalid autocrypt header {}: {:?}", value, err
+                    );
+                }
             }
-
-            cur = unsafe { (*cur).next };
         }
 
-        fine_header
+        None
     }
 }
 
 impl fmt::Display for Aheader {
     fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        // TODO replace 78 with enum /rtn
-        // adds a whitespace every 78 characters, this allows libEtPan to
-        // wrap the lines according to RFC 5322
+        write!(fmt, "addr={};", self.addr)?;
+        if self.prefer_encrypt == EncryptPreference::Mutual {
+            write!(fmt, " prefer-encrypt=mutual;")?;
+        }
+
+        // adds a whitespace every 78 characters, this allows
+        // email crate to wrap the lines according to RFC 5322
         // (which may insert a linebreak before every whitespace)
-        let keydata = self.public_key.to_base64(78);
-        write!(
-            fmt,
-            "addr={}; prefer-encrypt={}; keydata={}",
-            self.addr, self.prefer_encrypt, keydata
-        )
+        let keydata = self.public_key.to_base64().chars().enumerate().fold(
+            String::new(),
+            |mut res, (i, c)| {
+                if i % 78 == 78 - "keydata=".len() {
+                    res.push(' ')
+                }
+                res.push(c);
+                res
+            },
+        );
+        write!(fmt, " keydata={}", keydata)
     }
 }
 
@@ -131,9 +122,9 @@ impl str::FromStr for Aheader {
 
     fn from_str(s: &str) -> Result<Self, Self::Err> {
         let mut attributes: BTreeMap<String, String> = s
-            .split(";")
+            .split(';')
             .filter_map(|a| {
-                let attribute: Vec<&str> = a.trim().splitn(2, "=").collect();
+                let attribute: Vec<&str> = a.trim().splitn(2, '=').collect();
                 if attribute.len() < 2 {
                     return None;
                 }
@@ -168,17 +159,14 @@ impl str::FromStr for Aheader {
             }
         };
 
-        let prefer_encrypt = match attributes
+        let prefer_encrypt = attributes
             .remove("prefer-encrypt")
             .and_then(|raw| raw.parse().ok())
-        {
-            Some(pref) => pref,
-            None => EncryptPreference::NoPreference,
-        };
+            .unwrap_or_default();
 
         // Autocrypt-Level0: unknown attributes starting with an underscore can be safely ignored
         // Autocrypt-Level0: unknown attribute, treat the header as invalid
-        if attributes.keys().find(|k| !k.starts_with("_")).is_some() {
+        if attributes.keys().any(|k| !k.starts_with('_')) {
             return Err(());
         }
 
@@ -194,15 +182,13 @@ impl str::FromStr for Aheader {
 mod tests {
     use super::*;
 
-    fn rawkey() -> String {
-        "xsBNBFzG3j0BCAC6iNhT8zydvCXi8LI/gFnkadMbfmSE/rTJskRRra/utGbLyDta/yTrJgWL7O3y/g4HdDW/dN2z26Y6W13IMzx9gLInn1KQZChtqWAcr/ReUucXcymwcfg1mdkBGk3TSLeLihN6CJx8Wsv8ig+kgAzte4f5rqEEAJVQ9WZHuti7UiYs6oRzqTo06CRe9owVXxzdMf0VDQtf7ZFm9dpzKKbhH7Lu8880iiotQ9/yRCkDGp9fNThsrLdZiK6OIAcIBAqi2rI89aS1dAmnRbktQieCx5izzyYkR1KvVL3gTTllHOzfKVEC2asmtWu2e4se/+O4WMIS1eGrn7GeWVb0Vwc5ABEBAAHNETxhQEBiLmV4YW1wbGUuZGU+wsCJBBABCAAzAhkBBQJcxt5FAhsDBAsJCAcGFQgJCgsCAxYCARYhBI4xxYKBgH3ANh5cufaKrc9mtiMLAAoJEPaKrc9mtiML938H/18F+3Wf9/JaAy/8hCO1v4S2PVBhxaKCokaNFtkfaMRne2l087LscCFPiFNyb4mv6Z3YeK8Xpxlp2sI0ecvdiqLUOGfnxS6tQrj+83EjtIrZ/hXOk1h121QFWH9Zg2VNHtODXjAgdLDC0NWUrclR0ZOqEDQHeo0ibTILdokVfXFN25wakPmGaYJP2y729cb1ve7RzvIvwn+Dddfxo3ao72rBfLi7l4NQ4S0KsY4cw+/6l5bRCKYCP77wZtvCwUvfVVosLdT43agtSiBI49+ayqvZ8OCvSJa61i+v81brTiEy9GBod4eAp45Ibsuemkw+gon4ZOvUXHTjwFB+h63MrozOwE0EXMbePQEIAL/vauf1zK8JgCu3V+G+SOX0iWw5xUlCPX+ERpBbWfwu3uAqn4wYXD3JDE/fVAF668xiV4eTPtlSUd5h0mn+G7uXMMOtkb+20SoEt50f8zw8TrL9t+ZsV11GKZWJpCar5AhXWsn6EEi8I2hLL5vn55ZZmHuGgN4jjmkRl3ToKCLhaXwTBjCJem7N5EH7F75wErEITa55v4Lb4Nfca7vnvtYrI1OA446xa8gHra0SINelTD09/JM/Fw4sWVPBaRZmJK/Tnu79N23No9XBUubmFPv1pNexZsQclicnTpt/BEWhiun7d6lfGB63K1aoHRTR1pcrWvBuALuuz0gqar2zlI0AEQEAAcLAdgQYAQgAIAUCXMbeRQIbDBYhBI4xxYKBgH3ANh5cufaKrc9mtiMLAAoJEPaKrc9mtiMLKSEIAIyLCRO2OyZ0IYRvRPpMn4p7E+7Pfcz/0mSkOy+1hshgJnqivXurm8zwGrwdMqeV4eslKR9H1RUdWGUQJNbtwmmjrt5DHpIhYHl5t3FpCBaGbV20Omo00Q38lBl9MtrmZkZw+ktEk6X+0xCKssMF+2MADkSOIufbR5HrDVB89VZOHCO9DeXvCUUAw2hyJiL/LHmLzJ40zYoTmb+F//f0k0j+tRdbkefyRoCmwG7YGiT+2hnCdgcezswnzah5J3ZKlrg7jOGo1LxtbvNUzxNBbC6S/aNgwm6qxo7xegRhmEl5uZ16zwyj4qz+xkjGy25Of5mWfUDoNw7OT7sjUbHOOMc=".into()
-    }
+    const RAWKEY: &str = "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";
 
     #[test]
     fn test_from_str() {
         let h: Aheader = format!(
             "addr=me@mail.com; prefer-encrypt=mutual; keydata={}",
-            rawkey()
+            RAWKEY
         )
         .parse()
         .expect("failed to parse");
@@ -211,9 +197,22 @@ mod tests {
         assert_eq!(h.prefer_encrypt, EncryptPreference::Mutual);
     }
 
+    // EncryptPreference::Reset is an internal value, parser should never return it
+    #[test]
+    fn test_from_str_reset() {
+        let raw = format!(
+            "addr=reset@example.com; prefer-encrypt=reset; keydata={}",
+            RAWKEY
+        );
+        let h: Aheader = raw.parse().expect("failed to parse");
+
+        assert_eq!(h.addr, "reset@example.com");
+        assert_eq!(h.prefer_encrypt, EncryptPreference::NoPreference);
+    }
+
     #[test]
     fn test_from_str_non_critical() {
-        let raw = format!("addr=me@mail.com; _foo=one; _bar=two; keydata={}", rawkey());
+        let raw = format!("addr=me@mail.com; _foo=one; _bar=two; keydata={}", RAWKEY);
         let h: Aheader = raw.parse().expect("failed to parse");
 
         assert_eq!(h.addr, "me@mail.com");
@@ -224,33 +223,57 @@ mod tests {
     fn test_from_str_superflous_critical() {
         let raw = format!(
             "addr=me@mail.com; _foo=one; _bar=two; other=me; keydata={}",
-            rawkey()
+            RAWKEY
         );
         assert!(raw.parse::<Aheader>().is_err());
     }
 
     #[test]
     fn test_good_headers() {
-        let fixed_header = "addr=a@b.example.org; prefer-encrypt=mutual; keydata=xsBNBFzG3j0BCAC6iNhT8zydvCXi8LI/gFnkadMbfmSE/rTJskRRra/utGbLyDta/yTrJgWL7O3y/g 4HdDW/dN2z26Y6W13IMzx9gLInn1KQZChtqWAcr/ReUucXcymwcfg1mdkBGk3TSLeLihN6CJx8Wsv8 ig+kgAzte4f5rqEEAJVQ9WZHuti7UiYs6oRzqTo06CRe9owVXxzdMf0VDQtf7ZFm9dpzKKbhH7Lu88 80iiotQ9/yRCkDGp9fNThsrLdZiK6OIAcIBAqi2rI89aS1dAmnRbktQieCx5izzyYkR1KvVL3gTTll HOzfKVEC2asmtWu2e4se/+O4WMIS1eGrn7GeWVb0Vwc5ABEBAAHNETxhQEBiLmV4YW1wbGUuZGU+ws CJBBABCAAzAhkBBQJcxt5FAhsDBAsJCAcGFQgJCgsCAxYCARYhBI4xxYKBgH3ANh5cufaKrc9mtiML AAoJEPaKrc9mtiML938H/18F+3Wf9/JaAy/8hCO1v4S2PVBhxaKCokaNFtkfaMRne2l087LscCFPiF Nyb4mv6Z3YeK8Xpxlp2sI0ecvdiqLUOGfnxS6tQrj+83EjtIrZ/hXOk1h121QFWH9Zg2VNHtODXjAg dLDC0NWUrclR0ZOqEDQHeo0ibTILdokVfXFN25wakPmGaYJP2y729cb1ve7RzvIvwn+Dddfxo3ao72 rBfLi7l4NQ4S0KsY4cw+/6l5bRCKYCP77wZtvCwUvfVVosLdT43agtSiBI49+ayqvZ8OCvSJa61i+v 81brTiEy9GBod4eAp45Ibsuemkw+gon4ZOvUXHTjwFB+h63MrozOwE0EXMbePQEIAL/vauf1zK8JgC u3V+G+SOX0iWw5xUlCPX+ERpBbWfwu3uAqn4wYXD3JDE/fVAF668xiV4eTPtlSUd5h0mn+G7uXMMOt kb+20SoEt50f8zw8TrL9t+ZsV11GKZWJpCar5AhXWsn6EEi8I2hLL5vn55ZZmHuGgN4jjmkRl3ToKC LhaXwTBjCJem7N5EH7F75wErEITa55v4Lb4Nfca7vnvtYrI1OA446xa8gHra0SINelTD09/JM/Fw4s WVPBaRZmJK/Tnu79N23No9XBUubmFPv1pNexZsQclicnTpt/BEWhiun7d6lfGB63K1aoHRTR1pcrWv BuALuuz0gqar2zlI0AEQEAAcLAdgQYAQgAIAUCXMbeRQIbDBYhBI4xxYKBgH3ANh5cufaKrc9mtiML AAoJEPaKrc9mtiMLKSEIAIyLCRO2OyZ0IYRvRPpMn4p7E+7Pfcz/0mSkOy+1hshgJnqivXurm8zwGr wdMqeV4eslKR9H1RUdWGUQJNbtwmmjrt5DHpIhYHl5t3FpCBaGbV20Omo00Q38lBl9MtrmZkZw+ktE k6X+0xCKssMF+2MADkSOIufbR5HrDVB89VZOHCO9DeXvCUUAw2hyJiL/LHmLzJ40zYoTmb+F//f0k0 j+tRdbkefyRoCmwG7YGiT+2hnCdgcezswnzah5J3ZKlrg7jOGo1LxtbvNUzxNBbC6S/aNgwm6qxo7x egRhmEl5uZ16zwyj4qz+xkjGy25Of5mWfUDoNw7OT7sjUbHOOMc=";
+        let fixed_header = concat!(
+            "addr=a@b.example.org; prefer-encrypt=mutual; ",
+            "keydata=xsBNBFzG3j0BCAC6iNhT8zydvCXi8LI/gFnkadMbfmSE/rTJskRRra/utGbLyDta/yTrJg",
+            " WL7O3y/g4HdDW/dN2z26Y6W13IMzx9gLInn1KQZChtqWAcr/ReUucXcymwcfg1mdkBGk3TSLeLihN6",
+            " CJx8Wsv8ig+kgAzte4f5rqEEAJVQ9WZHuti7UiYs6oRzqTo06CRe9owVXxzdMf0VDQtf7ZFm9dpzKK",
+            " bhH7Lu8880iiotQ9/yRCkDGp9fNThsrLdZiK6OIAcIBAqi2rI89aS1dAmnRbktQieCx5izzyYkR1Kv",
+            " VL3gTTllHOzfKVEC2asmtWu2e4se/+O4WMIS1eGrn7GeWVb0Vwc5ABEBAAHNETxhQEBiLmV4YW1wbG",
+            " UuZGU+wsCJBBABCAAzAhkBBQJcxt5FAhsDBAsJCAcGFQgJCgsCAxYCARYhBI4xxYKBgH3ANh5cufaK",
+            " rc9mtiMLAAoJEPaKrc9mtiML938H/18F+3Wf9/JaAy/8hCO1v4S2PVBhxaKCokaNFtkfaMRne2l087",
+            " LscCFPiFNyb4mv6Z3YeK8Xpxlp2sI0ecvdiqLUOGfnxS6tQrj+83EjtIrZ/hXOk1h121QFWH9Zg2VN",
+            " HtODXjAgdLDC0NWUrclR0ZOqEDQHeo0ibTILdokVfXFN25wakPmGaYJP2y729cb1ve7RzvIvwn+Ddd",
+            " fxo3ao72rBfLi7l4NQ4S0KsY4cw+/6l5bRCKYCP77wZtvCwUvfVVosLdT43agtSiBI49+ayqvZ8OCv",
+            " SJa61i+v81brTiEy9GBod4eAp45Ibsuemkw+gon4ZOvUXHTjwFB+h63MrozOwE0EXMbePQEIAL/vau",
+            " f1zK8JgCu3V+G+SOX0iWw5xUlCPX+ERpBbWfwu3uAqn4wYXD3JDE/fVAF668xiV4eTPtlSUd5h0mn+",
+            " G7uXMMOtkb+20SoEt50f8zw8TrL9t+ZsV11GKZWJpCar5AhXWsn6EEi8I2hLL5vn55ZZmHuGgN4jjm",
+            " kRl3ToKCLhaXwTBjCJem7N5EH7F75wErEITa55v4Lb4Nfca7vnvtYrI1OA446xa8gHra0SINelTD09",
+            " /JM/Fw4sWVPBaRZmJK/Tnu79N23No9XBUubmFPv1pNexZsQclicnTpt/BEWhiun7d6lfGB63K1aoHR",
+            " TR1pcrWvBuALuuz0gqar2zlI0AEQEAAcLAdgQYAQgAIAUCXMbeRQIbDBYhBI4xxYKBgH3ANh5cufaK",
+            " rc9mtiMLAAoJEPaKrc9mtiMLKSEIAIyLCRO2OyZ0IYRvRPpMn4p7E+7Pfcz/0mSkOy+1hshgJnqivX",
+            " urm8zwGrwdMqeV4eslKR9H1RUdWGUQJNbtwmmjrt5DHpIhYHl5t3FpCBaGbV20Omo00Q38lBl9Mtrm",
+            " ZkZw+ktEk6X+0xCKssMF+2MADkSOIufbR5HrDVB89VZOHCO9DeXvCUUAw2hyJiL/LHmLzJ40zYoTmb",
+            " +F//f0k0j+tRdbkefyRoCmwG7YGiT+2hnCdgcezswnzah5J3ZKlrg7jOGo1LxtbvNUzxNBbC6S/aNg",
+            " wm6qxo7xegRhmEl5uZ16zwyj4qz+xkjGy25Of5mWfUDoNw7OT7sjUbHOOMc="
+        );
 
         let ah = Aheader::from_str(fixed_header).expect("failed to parse");
         assert_eq!(ah.addr, "a@b.example.org");
         assert_eq!(ah.prefer_encrypt, EncryptPreference::Mutual);
+        assert_eq!(format!("{}", ah), fixed_header);
 
         let rendered = ah.to_string();
         assert_eq!(rendered, fixed_header);
 
-        let ah = Aheader::from_str(&format!(" _foo; __FOO=BAR ;;; addr = a@b.example.org ;\r\n   prefer-encrypt = mutual ; keydata = {}", rawkey())).expect("failed to parse");
+        let ah = Aheader::from_str(&format!(" _foo; __FOO=BAR ;;; addr = a@b.example.org ;\r\n   prefer-encrypt = mutual ; keydata = {}", RAWKEY)).expect("failed to parse");
         assert_eq!(ah.addr, "a@b.example.org");
         assert_eq!(ah.prefer_encrypt, EncryptPreference::Mutual);
 
         Aheader::from_str(&format!(
             "addr=a@b.example.org; prefer-encrypt=ignoreUnknownValues; keydata={}",
-            rawkey()
+            RAWKEY
         ))
         .expect("failed to parse");
 
-        Aheader::from_str(&format!("addr=a@b.example.org; keydata={}", rawkey()))
+        Aheader::from_str(&format!("addr=a@b.example.org; keydata={}", RAWKEY))
             .expect("failed to parse");
     }
 
@@ -262,4 +285,30 @@ mod tests {
         assert!(Aheader::from_str(" ;;").is_err());
         assert!(Aheader::from_str("addr=a@t.de; unknwon=1; keydata=jau").is_err());
     }
+
+    #[test]
+    fn test_display_aheader() {
+        assert!(format!(
+            "{}",
+            Aheader::new(
+                "test@example.com".to_string(),
+                Key::from_base64(RAWKEY, KeyType::Public).unwrap(),
+                EncryptPreference::Mutual
+            )
+        )
+        .contains("prefer-encrypt=mutual;"));
+
+        // According to Autocrypt Level 1 specification,
+        // only "prefer-encrypt=mutual;" can be used.
+        // If the setting is nopreference, the whole attribute is omitted.
+        assert!(!format!(
+            "{}",
+            Aheader::new(
+                "test@example.com".to_string(),
+                Key::from_base64(RAWKEY, KeyType::Public).unwrap(),
+                EncryptPreference::NoPreference
+            )
+        )
+        .contains("prefer-encrypt"));
+    }
 }

src/blob.rs

@@ -0,0 +1,634 @@
+//! # Blob directory management
+
+use std::ffi::OsStr;
+use std::fmt;
+use std::fs;
+use std::io::Write;
+use std::path::{Path, PathBuf};
+
+use self::image::GenericImageView;
+use crate::constants::AVATAR_SIZE;
+use crate::context::Context;
+use crate::events::Event;
+
+extern crate image;
+
+/// Represents a file in the blob directory.
+///
+/// The object has a name, which will always be valid UTF-8.  Having a
+/// blob object does not imply the respective file exists, however
+/// when using one of the `create*()` methods a unique file is
+/// created.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct BlobObject<'a> {
+    blobdir: &'a Path,
+    name: String,
+}
+
+impl<'a> BlobObject<'a> {
+    /// Creates a new blob object with a unique name.
+    ///
+    /// Creates a new file in the blob directory.  The name will be
+    /// derived from the platform-agnostic basename of the suggested
+    /// name, followed by a random number and followed by a possible
+    /// extension.  The `data` will be written into the file without
+    /// race-conditions.
+    ///
+    /// # Errors
+    ///
+    /// [BlobError::CreateFailure] is used when the file could not
+    /// be created.  You can expect [BlobError.cause] to contain an
+    /// underlying error.
+    ///
+    /// [BlobError::WriteFailure] is used when the file could not
+    /// be written to.  You can expect [BlobError.cause] to contain an
+    /// underlying error.
+    pub fn create(
+        context: &'a Context,
+        suggested_name: impl AsRef<str>,
+        data: &[u8],
+    ) -> std::result::Result<BlobObject<'a>, BlobError> {
+        let blobdir = context.get_blobdir();
+        let (stem, ext) = BlobObject::sanitise_name(suggested_name.as_ref());
+        let (name, mut file) = BlobObject::create_new_file(&blobdir, &stem, &ext)?;
+        file.write_all(data)
+            .map_err(|err| BlobError::WriteFailure {
+                blobdir: blobdir.to_path_buf(),
+                blobname: name.clone(),
+                cause: err,
+                backtrace: failure::Backtrace::new(),
+            })?;
+        let blob = BlobObject {
+            blobdir,
+            name: format!("$BLOBDIR/{}", name),
+        };
+        context.call_cb(Event::NewBlobFile(blob.as_name().to_string()));
+        Ok(blob)
+    }
+
+    // Creates a new file, returning a tuple of the name and the handle.
+    fn create_new_file(dir: &Path, stem: &str, ext: &str) -> Result<(String, fs::File), BlobError> {
+        let max_attempt = 15;
+        let mut name = format!("{}{}", stem, ext);
+        for attempt in 0..max_attempt {
+            let path = dir.join(&name);
+            match fs::OpenOptions::new()
+                .create_new(true)
+                .write(true)
+                .open(&path)
+            {
+                Ok(file) => return Ok((name, file)),
+                Err(err) => {
+                    if attempt == max_attempt {
+                        return Err(BlobError::CreateFailure {
+                            blobdir: dir.to_path_buf(),
+                            blobname: name,
+                            cause: err,
+                            backtrace: failure::Backtrace::new(),
+                        });
+                    } else {
+                        name = format!("{}-{}{}", stem, rand::random::<u32>(), ext);
+                    }
+                }
+            }
+        }
+        // This is supposed to be unreachable, but the compiler doesn't know.
+        Err(BlobError::CreateFailure {
+            blobdir: dir.to_path_buf(),
+            blobname: name,
+            cause: std::io::Error::new(std::io::ErrorKind::Other, "supposedly unreachable"),
+            backtrace: failure::Backtrace::new(),
+        })
+    }
+
+    /// Creates a new blob object with unique name by copying an existing file.
+    ///
+    /// This creates a new blob as described in [BlobObject::create]
+    /// but also copies an existing file into it.  This is done in a
+    /// in way which avoids race-conditions when multiple files are
+    /// concurrently created.
+    ///
+    /// # Errors
+    ///
+    /// In addition to the errors in [BlobObject::create] the
+    /// [BlobError::CopyFailure] is used when the data can not be
+    /// copied.
+    pub fn create_and_copy(
+        context: &'a Context,
+        src: impl AsRef<Path>,
+    ) -> std::result::Result<BlobObject<'a>, BlobError> {
+        let mut src_file = fs::File::open(src.as_ref()).map_err(|err| BlobError::CopyFailure {
+            blobdir: context.get_blobdir().to_path_buf(),
+            blobname: String::from(""),
+            src: src.as_ref().to_path_buf(),
+            cause: err,
+            backtrace: failure::Backtrace::new(),
+        })?;
+        let (stem, ext) = BlobObject::sanitise_name(&src.as_ref().to_string_lossy());
+        let (name, mut dst_file) = BlobObject::create_new_file(context.get_blobdir(), &stem, &ext)?;
+        let name_for_err = name.clone();
+        std::io::copy(&mut src_file, &mut dst_file).map_err(|err| {
+            {
+                // Attempt to remove the failed file, swallow errors resulting from that.
+                let path = context.get_blobdir().join(&name_for_err);
+                fs::remove_file(path).ok();
+            }
+            BlobError::CopyFailure {
+                blobdir: context.get_blobdir().to_path_buf(),
+                blobname: name_for_err,
+                src: src.as_ref().to_path_buf(),
+                cause: err,
+                backtrace: failure::Backtrace::new(),
+            }
+        })?;
+        let blob = BlobObject {
+            blobdir: context.get_blobdir(),
+            name: format!("$BLOBDIR/{}", name),
+        };
+        context.call_cb(Event::NewBlobFile(blob.as_name().to_string()));
+        Ok(blob)
+    }
+
+    /// Creates a blob from a file, possibly copying it to the blobdir.
+    ///
+    /// If the source file is not a path to into the blob directory
+    /// the file will be copied into the blob directory first.  If the
+    /// source file is already in the blobdir it will not be copied
+    /// and only be created if it is a valid blobname, that is no
+    /// subdirectory is used and [BlobObject::sanitise_name] does not
+    /// modify the filename.
+    ///
+    /// # Errors
+    ///
+    /// This merely delegates to the [BlobObject::create_and_copy] and
+    /// the [BlobObject::from_path] methods.  See those for possible
+    /// errors.
+    pub fn new_from_path(
+        context: &Context,
+        src: impl AsRef<Path>,
+    ) -> std::result::Result<BlobObject, BlobError> {
+        if src.as_ref().starts_with(context.get_blobdir()) {
+            BlobObject::from_path(context, src)
+        } else {
+            BlobObject::create_and_copy(context, src)
+        }
+    }
+
+    /// Returns a [BlobObject] for an existing blob from a path.
+    ///
+    /// The path must designate a file directly in the blobdir and
+    /// must use a valid blob name.  That is after sanitisation the
+    /// name must still be the same, that means it must be valid UTF-8
+    /// and not have any special characters in it.
+    ///
+    /// # Errors
+    ///
+    /// [BlobError::WrongBlobdir] is used if the path is not in
+    /// the blob directory.
+    ///
+    /// [BlobError::WrongName] is used if the file name does not
+    /// remain identical after sanitisation.
+    pub fn from_path(
+        context: &Context,
+        path: impl AsRef<Path>,
+    ) -> std::result::Result<BlobObject, BlobError> {
+        let rel_path = path
+            .as_ref()
+            .strip_prefix(context.get_blobdir())
+            .map_err(|_| BlobError::WrongBlobdir {
+                blobdir: context.get_blobdir().to_path_buf(),
+                src: path.as_ref().to_path_buf(),
+                backtrace: failure::Backtrace::new(),
+            })?;
+        if !BlobObject::is_acceptible_blob_name(&rel_path) {
+            return Err(BlobError::WrongName {
+                blobname: path.as_ref().to_path_buf(),
+                backtrace: failure::Backtrace::new(),
+            });
+        }
+        let name = rel_path.to_str().ok_or_else(|| BlobError::WrongName {
+            blobname: path.as_ref().to_path_buf(),
+            backtrace: failure::Backtrace::new(),
+        })?;
+        BlobObject::from_name(context, name.to_string())
+    }
+
+    /// Returns a [BlobObject] for an existing blob.
+    ///
+    /// The `name` may optionally be prefixed with the `$BLOBDIR/`
+    /// prefixed, as returned by [BlobObject::as_name].  This is how
+    /// you want to create a [BlobObject] for a filename read from the
+    /// database.
+    ///
+    /// # Errors
+    ///
+    /// [BlobError::WrongName] is used if the name is not a valid
+    /// blobname, i.e. if [BlobObject::sanitise_name] does modify the
+    /// provided name.
+    pub fn from_name(
+        context: &'a Context,
+        name: String,
+    ) -> std::result::Result<BlobObject<'a>, BlobError> {
+        let name: String = match name.starts_with("$BLOBDIR/") {
+            true => name.splitn(2, '/').last().unwrap().to_string(),
+            false => name,
+        };
+        if !BlobObject::is_acceptible_blob_name(&name) {
+            return Err(BlobError::WrongName {
+                blobname: PathBuf::from(name),
+                backtrace: failure::Backtrace::new(),
+            });
+        }
+        Ok(BlobObject {
+            blobdir: context.get_blobdir(),
+            name: format!("$BLOBDIR/{}", name),
+        })
+    }
+
+    /// Returns the absolute path to the blob in the filesystem.
+    pub fn to_abs_path(&self) -> PathBuf {
+        let fname = Path::new(&self.name).strip_prefix("$BLOBDIR/").unwrap();
+        self.blobdir.join(fname)
+    }
+
+    /// Returns the blob name, as stored in the database.
+    ///
+    /// This returns the blob in the `$BLOBDIR/<name>` format used in
+    /// the database.  Do not use this unless you're about to store
+    /// this string in the database or [Params].  Eventually even
+    /// those conversions should be handled by the type system.
+    ///
+    /// [Params]: crate::param::Params
+    pub fn as_name(&self) -> &str {
+        &self.name
+    }
+
+    /// Returns the filename of the blob.
+    pub fn as_file_name(&self) -> &str {
+        self.name.rsplitn(2, '/').next().unwrap()
+    }
+
+    /// The path relative in the blob directory.
+    pub fn as_rel_path(&self) -> &Path {
+        Path::new(self.as_file_name())
+    }
+
+    /// Returns the extension of the blob.
+    ///
+    /// If a blob's filename has an extension, it is always guaranteed
+    /// to be lowercase.
+    pub fn suffix(&self) -> Option<&str> {
+        let ext = self.name.rsplitn(2, '.').next();
+        if ext == Some(&self.name) {
+            None
+        } else {
+            ext
+        }
+    }
+
+    /// Create a safe name based on a messy input string.
+    ///
+    /// The safe name will be a valid filename on Unix and Windows and
+    /// not contain any path separators.  The input can contain path
+    /// segments separated by either Unix or Windows path separators,
+    /// the rightmost non-empty segment will be used as name,
+    /// sanitised for special characters.
+    ///
+    /// The resulting name is returned as a tuple, the first part
+    /// being the stem or basename and the second being an extension,
+    /// including the dot.  E.g. "foo.txt" is returned as `("foo",
+    /// ".txt")` while "bar" is returned as `("bar", "")`.
+    ///
+    /// The extension part will always be lowercased.
+    fn sanitise_name(name: &str) -> (String, String) {
+        let mut name = name.to_string();
+        for part in name.rsplit('/') {
+            if !part.is_empty() {
+                name = part.to_string();
+                break;
+            }
+        }
+        for part in name.rsplit('\\') {
+            if !part.is_empty() {
+                name = part.to_string();
+                break;
+            }
+        }
+        let opts = sanitize_filename::Options {
+            truncate: true,
+            windows: true,
+            replacement: "",
+        };
+
+        let clean = sanitize_filename::sanitize_with_options(name, opts);
+        let mut iter = clean.splitn(2, '.');
+        let mut stem = iter.next().unwrap_or_default().to_string();
+        let mut ext = iter.next().unwrap_or_default().to_string();
+        stem.truncate(64);
+        ext.truncate(32);
+        match ext.len() {
+            0 => (stem, "".to_string()),
+            _ => (stem, format!(".{}", ext).to_lowercase()),
+        }
+    }
+
+    /// Checks whether a name is a valid blob name.
+    ///
+    /// This is slightly less strict than stanitise_name, presumably
+    /// someone already created a file with such a name so we just
+    /// ensure it's not actually a path in disguise is actually utf-8.
+    fn is_acceptible_blob_name(name: impl AsRef<OsStr>) -> bool {
+        let uname = match name.as_ref().to_str() {
+            Some(name) => name,
+            None => return false,
+        };
+        if uname.find('/').is_some() {
+            return false;
+        }
+        if uname.find('\\').is_some() {
+            return false;
+        }
+        if uname.find('\0').is_some() {
+            return false;
+        }
+        true
+    }
+
+    pub fn recode_to_avatar_size(&self, context: &Context) -> Result<(), BlobError> {
+        let blob_abs = self.to_abs_path();
+        let img = image::open(&blob_abs).map_err(|err| BlobError::RecodeFailure {
+            blobdir: context.get_blobdir().to_path_buf(),
+            blobname: blob_abs.to_str().unwrap_or_default().to_string(),
+            cause: err,
+            backtrace: failure::Backtrace::new(),
+        })?;
+
+        if img.width() <= AVATAR_SIZE && img.height() <= AVATAR_SIZE {
+            return Ok(());
+        }
+
+        let img = img.thumbnail(AVATAR_SIZE, AVATAR_SIZE);
+
+        img.save(&blob_abs).map_err(|err| BlobError::WriteFailure {
+            blobdir: context.get_blobdir().to_path_buf(),
+            blobname: blob_abs.to_str().unwrap_or_default().to_string(),
+            cause: err,
+            backtrace: failure::Backtrace::new(),
+        })?;
+
+        Ok(())
+    }
+}
+
+impl<'a> fmt::Display for BlobObject<'a> {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "$BLOBDIR/{}", self.name)
+    }
+}
+
+/// Errors for the [BlobObject].
+#[derive(Fail, Debug)]
+pub enum BlobError {
+    CreateFailure {
+        blobdir: PathBuf,
+        blobname: String,
+        #[cause]
+        cause: std::io::Error,
+        backtrace: failure::Backtrace,
+    },
+    WriteFailure {
+        blobdir: PathBuf,
+        blobname: String,
+        #[cause]
+        cause: std::io::Error,
+        backtrace: failure::Backtrace,
+    },
+    CopyFailure {
+        blobdir: PathBuf,
+        blobname: String,
+        src: PathBuf,
+        #[cause]
+        cause: std::io::Error,
+        backtrace: failure::Backtrace,
+    },
+    RecodeFailure {
+        blobdir: PathBuf,
+        blobname: String,
+        #[cause]
+        cause: image::ImageError,
+        backtrace: failure::Backtrace,
+    },
+    WrongBlobdir {
+        blobdir: PathBuf,
+        src: PathBuf,
+        backtrace: failure::Backtrace,
+    },
+    WrongName {
+        blobname: PathBuf,
+        backtrace: failure::Backtrace,
+    },
+}
+
+// Implementing Display is done by hand because the failure
+// #[fail(display = "...")] syntax does not allow using
+// `blobdir.display()`.
+impl fmt::Display for BlobError {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        // Match on the data rather than kind, they are equivalent for
+        // identifying purposes but contain the actual data we need.
+        match &self {
+            BlobError::CreateFailure {
+                blobdir, blobname, ..
+            } => write!(
+                f,
+                "Failed to create blob {} in {}",
+                blobname,
+                blobdir.display()
+            ),
+            BlobError::WriteFailure {
+                blobdir, blobname, ..
+            } => write!(
+                f,
+                "Failed to write data to blob {} in {}",
+                blobname,
+                blobdir.display()
+            ),
+            BlobError::CopyFailure {
+                blobdir,
+                blobname,
+                src,
+                ..
+            } => write!(
+                f,
+                "Failed to copy data from {} to blob {} in {}",
+                src.display(),
+                blobname,
+                blobdir.display(),
+            ),
+            BlobError::RecodeFailure {
+                blobdir, blobname, ..
+            } => write!(f, "Failed to recode {} in {}", blobname, blobdir.display(),),
+            BlobError::WrongBlobdir { blobdir, src, .. } => write!(
+                f,
+                "File path {} is not in blobdir {}",
+                src.display(),
+                blobdir.display(),
+            ),
+            BlobError::WrongName { blobname, .. } => {
+                write!(f, "Blob has a bad name: {}", blobname.display(),)
+            }
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    use crate::test_utils::*;
+
+    #[test]
+    fn test_create() {
+        let t = dummy_context();
+        let blob = BlobObject::create(&t.ctx, "foo", b"hello").unwrap();
+        let fname = t.ctx.get_blobdir().join("foo");
+        let data = fs::read(fname).unwrap();
+        assert_eq!(data, b"hello");
+        assert_eq!(blob.as_name(), "$BLOBDIR/foo");
+        assert_eq!(blob.to_abs_path(), t.ctx.get_blobdir().join("foo"));
+    }
+
+    #[test]
+    fn test_lowercase_ext() {
+        let t = dummy_context();
+        let blob = BlobObject::create(&t.ctx, "foo.TXT", b"hello").unwrap();
+        assert_eq!(blob.as_name(), "$BLOBDIR/foo.txt");
+    }
+
+    #[test]
+    fn test_as_file_name() {
+        let t = dummy_context();
+        let blob = BlobObject::create(&t.ctx, "foo.txt", b"hello").unwrap();
+        assert_eq!(blob.as_file_name(), "foo.txt");
+    }
+
+    #[test]
+    fn test_as_rel_path() {
+        let t = dummy_context();
+        let blob = BlobObject::create(&t.ctx, "foo.txt", b"hello").unwrap();
+        assert_eq!(blob.as_rel_path(), Path::new("foo.txt"));
+    }
+
+    #[test]
+    fn test_suffix() {
+        let t = dummy_context();
+        let blob = BlobObject::create(&t.ctx, "foo.txt", b"hello").unwrap();
+        assert_eq!(blob.suffix(), Some("txt"));
+        let blob = BlobObject::create(&t.ctx, "bar", b"world").unwrap();
+        assert_eq!(blob.suffix(), None);
+    }
+
+    #[test]
+    fn test_create_dup() {
+        let t = dummy_context();
+        BlobObject::create(&t.ctx, "foo.txt", b"hello").unwrap();
+        let foo_path = t.ctx.get_blobdir().join("foo.txt");
+        assert!(foo_path.exists());
+        BlobObject::create(&t.ctx, "foo.txt", b"world").unwrap();
+        for dirent in fs::read_dir(t.ctx.get_blobdir()).unwrap() {
+            let fname = dirent.unwrap().file_name();
+            if fname == foo_path.file_name().unwrap() {
+                assert_eq!(fs::read(&foo_path).unwrap(), b"hello");
+            } else {
+                let name = fname.to_str().unwrap();
+                assert!(name.starts_with("foo"));
+                assert!(name.ends_with(".txt"));
+            }
+        }
+    }
+
+    #[test]
+    fn test_double_ext_preserved() {
+        let t = dummy_context();
+        BlobObject::create(&t.ctx, "foo.tar.gz", b"hello").unwrap();
+        let foo_path = t.ctx.get_blobdir().join("foo.tar.gz");
+        assert!(foo_path.exists());
+        BlobObject::create(&t.ctx, "foo.tar.gz", b"world").unwrap();
+        for dirent in fs::read_dir(t.ctx.get_blobdir()).unwrap() {
+            let fname = dirent.unwrap().file_name();
+            if fname == foo_path.file_name().unwrap() {
+                assert_eq!(fs::read(&foo_path).unwrap(), b"hello");
+            } else {
+                let name = fname.to_str().unwrap();
+                println!("{}", name);
+                assert!(name.starts_with("foo"));
+                assert!(name.ends_with(".tar.gz"));
+            }
+        }
+    }
+
+    #[test]
+    fn test_create_long_names() {
+        let t = dummy_context();
+        let s = "1".repeat(150);
+        let blob = BlobObject::create(&t.ctx, &s, b"data").unwrap();
+        let blobname = blob.as_name().split('/').last().unwrap();
+        assert!(blobname.len() < 128);
+    }
+
+    #[test]
+    fn test_create_and_copy() {
+        let t = dummy_context();
+        let src = t.dir.path().join("src");
+        fs::write(&src, b"boo").unwrap();
+        let blob = BlobObject::create_and_copy(&t.ctx, &src).unwrap();
+        assert_eq!(blob.as_name(), "$BLOBDIR/src");
+        let data = fs::read(blob.to_abs_path()).unwrap();
+        assert_eq!(data, b"boo");
+
+        let whoops = t.dir.path().join("whoops");
+        assert!(BlobObject::create_and_copy(&t.ctx, &whoops).is_err());
+        let whoops = t.ctx.get_blobdir().join("whoops");
+        assert!(!whoops.exists());
+    }
+
+    #[test]
+    fn test_create_from_path() {
+        let t = dummy_context();
+
+        let src_ext = t.dir.path().join("external");
+        fs::write(&src_ext, b"boo").unwrap();
+        let blob = BlobObject::new_from_path(&t.ctx, &src_ext).unwrap();
+        assert_eq!(blob.as_name(), "$BLOBDIR/external");
+        let data = fs::read(blob.to_abs_path()).unwrap();
+        assert_eq!(data, b"boo");
+
+        let src_int = t.ctx.get_blobdir().join("internal");
+        fs::write(&src_int, b"boo").unwrap();
+        let blob = BlobObject::new_from_path(&t.ctx, &src_int).unwrap();
+        assert_eq!(blob.as_name(), "$BLOBDIR/internal");
+        let data = fs::read(blob.to_abs_path()).unwrap();
+        assert_eq!(data, b"boo");
+    }
+    #[test]
+    fn test_create_from_name_long() {
+        let t = dummy_context();
+        let src_ext = t.dir.path().join("autocrypt-setup-message-4137848473.html");
+        fs::write(&src_ext, b"boo").unwrap();
+        let blob = BlobObject::new_from_path(&t.ctx, &src_ext).unwrap();
+        assert_eq!(
+            blob.as_name(),
+            "$BLOBDIR/autocrypt-setup-message-4137848473.html"
+        );
+    }
+
+    #[test]
+    fn test_is_blob_name() {
+        assert!(BlobObject::is_acceptible_blob_name("foo"));
+        assert!(BlobObject::is_acceptible_blob_name("foo.txt"));
+        assert!(BlobObject::is_acceptible_blob_name("f".repeat(128)));
+        assert!(!BlobObject::is_acceptible_blob_name("foo/bar"));
+        assert!(!BlobObject::is_acceptible_blob_name("foo\\bar"));
+        assert!(!BlobObject::is_acceptible_blob_name("foo\x00bar"));
+    }
+}

src/chatlist.rs

@@ -1,10 +1,12 @@
+//! # Chat list module
+
 use crate::chat::*;
 use crate::constants::*;
 use crate::contact::*;
 use crate::context::*;
 use crate::error::Result;
 use crate::lot::Lot;
-use crate::message::*;
+use crate::message::{Message, MessageState, MsgId};
 use crate::stock::StockMessage;
 
 /// An object representing a single chatlist in memory.
@@ -34,7 +36,7 @@ use crate::stock::StockMessage;
 #[derive(Debug)]
 pub struct Chatlist {
     /// Stores pairs of `chat_id, message_id`
-    ids: Vec<(u32, u32)>,
+    ids: Vec<(ChatId, MsgId)>,
 }
 
 impl Chatlist {
@@ -58,7 +60,7 @@ impl Chatlist {
     ///   or "Not now".
     ///   The UI can also offer a "Close" button that calls dc_marknoticed_contact() then.
     /// - DC_CHAT_ID_ARCHIVED_LINK (6) - this special chat is present if the user has
-    ///   archived _any_ chat using dc_archive_chat(). The UI should show a link as
+    ///   archived *any* chat using dc_archive_chat(). The UI should show a link as
     ///   "Show archived chats", if the user clicks this item, the UI should show a
     ///   list of all archived chats that can be created by this function hen using
     ///   the DC_GCL_ARCHIVED_ONLY flag.
@@ -69,7 +71,7 @@ impl Chatlist {
     /// The `listflags` is a combination of flags:
     /// - if the flag DC_GCL_ARCHIVED_ONLY is set, only archived chats are returned.
     ///   if DC_GCL_ARCHIVED_ONLY is not set, only unarchived chats are returned and
-    ///   the pseudo-chat DC_CHAT_ID_ARCHIVED_LINK is added if there are _any_ archived
+    ///   the pseudo-chat DC_CHAT_ID_ARCHIVED_LINK is added if there are *any* archived
     ///   chats
     /// - if the flag DC_GCL_NO_SPECIALS is set, deaddrop and archive link are not added
     ///   to the list (may be used eg. for selecting chats on forwarding, the flag is
@@ -86,25 +88,12 @@ impl Chatlist {
         query: Option<&str>,
         query_contact_id: Option<u32>,
     ) -> Result<Self> {
-        let mut add_archived_link_item = 0;
-
-        // select with left join and minimum:
-        // - the inner select must use `hidden` and _not_ `m.hidden`
-        //   which would refer the outer select and take a lot of time
-        // - `GROUP BY` is needed several messages may have the same timestamp
-        // - the list starts with the newest chats
-        // nb: the query currently shows messages from blocked contacts in groups.
-        // however, for normal-groups, this is okay as the message is also returned by dc_get_chat_msgs()
-        // (otherwise it would be hard to follow conversations, wa and tg do the same)
-        // for the deaddrop, however, they should really be hidden, however, _currently_ the deaddrop is not
-        // shown at all permanent in the chatlist.
+        let mut add_archived_link_item = false;
 
         let process_row = |row: &rusqlite::Row| {
-            let chat_id: i32 = row.get(0)?;
-            // TODO: verify that it is okay for this to be Null
-            let msg_id: i32 = row.get(1).unwrap_or_default();
-
-            Ok((chat_id as u32, msg_id as u32))
+            let chat_id: ChatId = row.get(0)?;
+            let msg_id: MsgId = row.get(1).unwrap_or_default();
+            Ok((chat_id, msg_id))
         };
 
         let process_rows = |rows: rusqlite::MappedRows<_>| {
@@ -112,37 +101,60 @@ impl Chatlist {
                 .map_err(Into::into)
         };
 
-        // nb: the query currently shows messages from blocked contacts in groups.
-        // however, for normal-groups, this is okay as the message is also returned by dc_get_chat_msgs()
-        // (otherwise it would be hard to follow conversations, wa and tg do the same)
-        // for the deaddrop, however, they should really be hidden, however, _currently_ the deaddrop is not
+        // select with left join and minimum:
+        //
+        // - the inner select must use `hidden` and _not_ `m.hidden`
+        //   which would refer the outer select and take a lot of time
+        // - `GROUP BY` is needed several messages may have the same
+        //   timestamp
+        // - the list starts with the newest chats
+        //
+        // nb: the query currently shows messages from blocked
+        // contacts in groups.  however, for normal-groups, this is
+        // okay as the message is also returned by dc_get_chat_msgs()
+        // (otherwise it would be hard to follow conversations, wa and
+        // tg do the same) for the deaddrop, however, they should
+        // really be hidden, however, _currently_ the deaddrop is not
         // shown at all permanent in the chatlist.
-
         let mut ids = if let Some(query_contact_id) = query_contact_id {
             // show chats shared with a given contact
             context.sql.query_map(
-            "SELECT c.id, m.id FROM chats c  LEFT JOIN msgs m         \
-             ON c.id=m.chat_id        \
-             AND m.timestamp=( SELECT MAX(timestamp)   \
-             FROM msgs  WHERE chat_id=c.id    \
-             AND (hidden=0 OR (hidden=1 AND state=19))) WHERE c.id>9   \
-             AND c.blocked=0 AND c.id IN(SELECT chat_id FROM chats_contacts WHERE contact_id=?)  \
-             GROUP BY c.id  ORDER BY IFNULL(m.timestamp,0) DESC, m.id DESC;",
-            params![query_contact_id as i32],
-            process_row,
-            process_rows,
-        )?
+                "SELECT c.id, m.id
+                 FROM chats c
+                 LEFT JOIN msgs m
+                        ON c.id=m.chat_id
+                       AND m.timestamp=(
+                               SELECT MAX(timestamp)
+                                 FROM msgs
+                                WHERE chat_id=c.id
+                                  AND (hidden=0 OR state=?))
+                 WHERE c.id>9
+                   AND c.blocked=0
+                   AND c.id IN(SELECT chat_id FROM chats_contacts WHERE contact_id=?)
+                 GROUP BY c.id
+                 ORDER BY IFNULL(m.timestamp,c.created_timestamp) DESC, m.id DESC;",
+                params![MessageState::OutDraft, query_contact_id as i32],
+                process_row,
+                process_rows,
+            )?
         } else if 0 != listflags & DC_GCL_ARCHIVED_ONLY {
             // show archived chats
             context.sql.query_map(
-                "SELECT c.id, m.id FROM chats c  LEFT JOIN msgs m         \
-                 ON c.id=m.chat_id        \
-                 AND m.timestamp=( SELECT MAX(timestamp)   \
-                 FROM msgs  WHERE chat_id=c.id    \
-                 AND (hidden=0 OR (hidden=1 AND state=19))) WHERE c.id>9   \
-                 AND c.blocked=0 AND c.archived=1  GROUP BY c.id  \
-                 ORDER BY IFNULL(m.timestamp,0) DESC, m.id DESC;",
-                params![],
+                "SELECT c.id, m.id
+                 FROM chats c
+                 LEFT JOIN msgs m
+                        ON c.id=m.chat_id
+                       AND m.timestamp=(
+                               SELECT MAX(timestamp)
+                                 FROM msgs
+                                WHERE chat_id=c.id
+                                  AND (hidden=0 OR state=?))
+                 WHERE c.id>9
+                   AND c.blocked=0
+                   AND c.archived=1
+                 GROUP BY c.id
+                 ORDER BY IFNULL(m.timestamp,c.created_timestamp) DESC, m.id DESC;",
+                params![MessageState::OutDraft],
                 process_row,
                 process_rows,
             )?
@@ -150,50 +162,70 @@ impl Chatlist {
             let query = query.trim().to_string();
             ensure!(!query.is_empty(), "missing query");
 
+            // allow searching over special names that may change at any time
+            // when the ui calls set_stock_translation()
+            if let Err(err) = update_special_chat_names(context) {
+                warn!(context, "cannot update special chat names: {:?}", err)
+            }
+
             let str_like_cmd = format!("%{}%", query);
             context.sql.query_map(
-                "SELECT c.id, m.id FROM chats c  LEFT JOIN msgs m         \
-                 ON c.id=m.chat_id        \
-                 AND m.timestamp=( SELECT MAX(timestamp)   \
-                 FROM msgs  WHERE chat_id=c.id    \
-                 AND (hidden=0 OR (hidden=1 AND state=19))) WHERE c.id>9   \
-                 AND c.blocked=0 AND c.name LIKE ?  \
-                 GROUP BY c.id  ORDER BY IFNULL(m.timestamp,0) DESC, m.id DESC;",
-                params![str_like_cmd],
+                "SELECT c.id, m.id
+                 FROM chats c
+                 LEFT JOIN msgs m
+                        ON c.id=m.chat_id
+                       AND m.timestamp=(
+                               SELECT MAX(timestamp)
+                                 FROM msgs
+                                WHERE chat_id=c.id
+                                  AND (hidden=0 OR state=?))
+                 WHERE c.id>9
+                   AND c.blocked=0
+                   AND c.name LIKE ?
+                 GROUP BY c.id
+                 ORDER BY IFNULL(m.timestamp,c.created_timestamp) DESC, m.id DESC;",
+                params![MessageState::OutDraft, str_like_cmd],
                 process_row,
                 process_rows,
             )?
         } else {
             //  show normal chatlist
             let mut ids = context.sql.query_map(
-                "SELECT c.id, m.id FROM chats c  \
-                 LEFT JOIN msgs m         \
-                 ON c.id=m.chat_id        \
-                 AND m.timestamp=( SELECT MAX(timestamp)   \
-                 FROM msgs  WHERE chat_id=c.id    \
-                 AND (hidden=0 OR (hidden=1 AND state=19))) WHERE c.id>9   \
-                 AND c.blocked=0 AND c.archived=0  \
-                 GROUP BY c.id  \
-                 ORDER BY IFNULL(m.timestamp,0) DESC, m.id DESC;",
-                params![],
+                "SELECT c.id, m.id
+                 FROM chats c
+                 LEFT JOIN msgs m
+                        ON c.id=m.chat_id
+                       AND m.timestamp=(
+                               SELECT MAX(timestamp)
+                                 FROM msgs
+                                WHERE chat_id=c.id
+                                  AND (hidden=0 OR state=?))
+                 WHERE c.id>9
+                   AND c.blocked=0
+                   AND c.archived=0
+                 GROUP BY c.id
+                 ORDER BY IFNULL(m.timestamp,c.created_timestamp) DESC, m.id DESC;",
+                params![MessageState::OutDraft],
                 process_row,
                 process_rows,
             )?;
             if 0 == listflags & DC_GCL_NO_SPECIALS {
-                let last_deaddrop_fresh_msg_id = get_last_deaddrop_fresh_msg(context);
-                if last_deaddrop_fresh_msg_id > 0 {
-                    ids.push((1, last_deaddrop_fresh_msg_id));
+                if let Some(last_deaddrop_fresh_msg_id) = get_last_deaddrop_fresh_msg(context) {
+                    ids.insert(
+                        0,
+                        (ChatId::new(DC_CHAT_ID_DEADDROP), last_deaddrop_fresh_msg_id),
+                    );
                 }
-                add_archived_link_item = 1;
+                add_archived_link_item = true;
             }
             ids
         };
 
-        if 0 != add_archived_link_item && dc_get_archived_cnt(context) > 0 {
+        if add_archived_link_item && dc_get_archived_cnt(context) > 0 {
             if ids.is_empty() && 0 != listflags & DC_GCL_ADD_ALLDONE_HINT {
-                ids.push((DC_CHAT_ID_ALLDONE_HINT, 0));
+                ids.push((ChatId::new(DC_CHAT_ID_ALLDONE_HINT), MsgId::new(0)));
             }
-            ids.push((DC_CHAT_ID_ARCHIVED_LINK, 0));
+            ids.push((ChatId::new(DC_CHAT_ID_ARCHIVED_LINK), MsgId::new(0)));
         }
 
         Ok(Chatlist { ids })
@@ -204,6 +236,7 @@ impl Chatlist {
         self.ids.len()
     }
 
+    /// Returns true if chatlist is empty.
     pub fn is_empty(&self) -> bool {
         self.ids.is_empty()
     }
@@ -211,9 +244,9 @@ impl Chatlist {
     /// Get a single chat ID of a chatlist.
     ///
     /// To get the message object from the message ID, use dc_get_chat().
-    pub fn get_chat_id(&self, index: usize) -> u32 {
+    pub fn get_chat_id(&self, index: usize) -> ChatId {
         if index >= self.ids.len() {
-            return 0;
+            return ChatId::new(0);
         }
         self.ids[index].0
     }
@@ -221,12 +254,9 @@ impl Chatlist {
     /// Get a single message ID of a chatlist.
     ///
     /// To get the message object from the message ID, use dc_get_msg().
-    pub fn get_msg_id(&self, index: usize) -> u32 {
-        if index >= self.ids.len() {
-            return 0;
-        }
-
-        self.ids[index].1
+    pub fn get_msg_id(&self, index: usize) -> Result<MsgId> {
+        ensure!(index < self.ids.len(), "Chatlist index out of range");
+        Ok(self.ids[index].1)
     }
 
     /// Get a summary for a chatlist index.
@@ -258,35 +288,29 @@ impl Chatlist {
         let chat_loaded: Chat;
         let chat = if let Some(chat) = chat {
             chat
+        } else if let Ok(chat) = Chat::load_from_db(context, self.ids[index].0) {
+            chat_loaded = chat;
+            &chat_loaded
         } else {
-            if let Ok(chat) = Chat::load_from_db(context, self.ids[index].0) {
-                chat_loaded = chat;
-                &chat_loaded
-            } else {
-                return ret;
-            }
+            return ret;
         };
 
         let lastmsg_id = self.ids[index].1;
         let mut lastcontact = None;
 
-        let lastmsg = if 0 != lastmsg_id {
-            if let Ok(lastmsg) = dc_msg_load_from_db(context, lastmsg_id) {
-                if lastmsg.from_id != 1 as libc::c_uint
-                    && (chat.typ == Chattype::Group || chat.typ == Chattype::VerifiedGroup)
-                {
-                    lastcontact = Contact::load_from_db(context, lastmsg.from_id).ok();
-                }
-
-                Some(lastmsg)
-            } else {
-                None
+        let lastmsg = if let Ok(lastmsg) = Message::load_from_db(context, lastmsg_id) {
+            if lastmsg.from_id != DC_CONTACT_ID_SELF
+                && (chat.typ == Chattype::Group || chat.typ == Chattype::VerifiedGroup)
+            {
+                lastcontact = Contact::load_from_db(context, lastmsg.from_id).ok();
             }
+
+            Some(lastmsg)
         } else {
             None
         };
 
-        if chat.id == DC_CHAT_ID_ARCHIVED_LINK {
+        if chat.id.is_archived_link() {
             ret.text2 = None;
         } else if lastmsg.is_none() || lastmsg.as_ref().unwrap().from_id == DC_CONTACT_ID_UNDEFINED
         {
@@ -299,6 +323,7 @@ impl Chatlist {
     }
 }
 
+/// Returns the number of archived chats
 pub fn dc_get_archived_cnt(context: &Context) -> u32 {
     context
         .sql
@@ -310,19 +335,85 @@ pub fn dc_get_archived_cnt(context: &Context) -> u32 {
         .unwrap_or_default()
 }
 
-fn get_last_deaddrop_fresh_msg(context: &Context) -> u32 {
-    // We have an index over the state-column, this should be sufficient as there are typically
-    // only few fresh messages.
-    context
-        .sql
-        .query_get_value(
-            context,
-            "SELECT m.id  FROM msgs m  LEFT JOIN chats c ON c.id=m.chat_id  \
-             WHERE m.state=10   \
-             AND m.hidden=0    \
-             AND c.blocked=2 \
-             ORDER BY m.timestamp DESC, m.id DESC;",
-            params![],
-        )
-        .unwrap_or_default()
+fn get_last_deaddrop_fresh_msg(context: &Context) -> Option<MsgId> {
+    // We have an index over the state-column, this should be
+    // sufficient as there are typically only few fresh messages.
+    context.sql.query_get_value(
+        context,
+        concat!(
+            "SELECT m.id",
+            " FROM msgs m",
+            " LEFT JOIN chats c",
+            "        ON c.id=m.chat_id",
+            " WHERE m.state=10",
+            "   AND m.hidden=0",
+            "   AND c.blocked=2",
+            " ORDER BY m.timestamp DESC, m.id DESC;"
+        ),
+        params![],
+    )
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    use crate::chat;
+    use crate::test_utils::*;
+
+    #[test]
+    fn test_try_load() {
+        let t = dummy_context();
+        let chat_id1 = create_group_chat(&t.ctx, VerifiedStatus::Unverified, "a chat").unwrap();
+        let chat_id2 = create_group_chat(&t.ctx, VerifiedStatus::Unverified, "b chat").unwrap();
+        let chat_id3 = create_group_chat(&t.ctx, VerifiedStatus::Unverified, "c chat").unwrap();
+
+        // check that the chatlist starts with the most recent message
+        let chats = Chatlist::try_load(&t.ctx, 0, None, None).unwrap();
+        assert_eq!(chats.len(), 3);
+        assert_eq!(chats.get_chat_id(0), chat_id3);
+        assert_eq!(chats.get_chat_id(1), chat_id2);
+        assert_eq!(chats.get_chat_id(2), chat_id1);
+
+        // drafts are sorted to the top
+        let mut msg = Message::new(Viewtype::Text);
+        msg.set_text(Some("hello".to_string()));
+        set_draft(&t.ctx, chat_id2, Some(&mut msg));
+        let chats = Chatlist::try_load(&t.ctx, 0, None, None).unwrap();
+        assert_eq!(chats.get_chat_id(0), chat_id2);
+
+        // check chatlist query and archive functionality
+        let chats = Chatlist::try_load(&t.ctx, 0, Some("b"), None).unwrap();
+        assert_eq!(chats.len(), 1);
+
+        let chats = Chatlist::try_load(&t.ctx, DC_GCL_ARCHIVED_ONLY, None, None).unwrap();
+        assert_eq!(chats.len(), 0);
+
+        chat::archive(&t.ctx, chat_id1, true).ok();
+        let chats = Chatlist::try_load(&t.ctx, DC_GCL_ARCHIVED_ONLY, None, None).unwrap();
+        assert_eq!(chats.len(), 1);
+    }
+
+    #[test]
+    fn test_search_special_chat_names() {
+        let t = dummy_context();
+        t.ctx.update_device_chats().unwrap();
+
+        let chats = Chatlist::try_load(&t.ctx, 0, Some("t-1234-s"), None).unwrap();
+        assert_eq!(chats.len(), 0);
+        let chats = Chatlist::try_load(&t.ctx, 0, Some("t-5678-b"), None).unwrap();
+        assert_eq!(chats.len(), 0);
+
+        t.ctx
+            .set_stock_translation(StockMessage::SavedMessages, "test-1234-save".to_string())
+            .unwrap();
+        let chats = Chatlist::try_load(&t.ctx, 0, Some("t-1234-s"), None).unwrap();
+        assert_eq!(chats.len(), 1);
+
+        t.ctx
+            .set_stock_translation(StockMessage::DeviceMessages, "test-5678-babbel".to_string())
+            .unwrap();
+        let chats = Chatlist::try_load(&t.ctx, 0, Some("t-5678-b"), None).unwrap();
+        assert_eq!(chats.len(), 1);
+    }
 }

src/config.rs

@@ -1,12 +1,15 @@
+//! # Key-value configuration management
+
 use strum::{EnumProperty, IntoEnumIterator};
 use strum_macros::{AsRefStr, Display, EnumIter, EnumProperty, EnumString};
 
+use crate::blob::BlobObject;
 use crate::constants::DC_VERSION_STR;
 use crate::context::Context;
 use crate::dc_tools::*;
-use crate::error::Error;
 use crate::job::*;
 use crate::stock::StockMessage;
+use rusqlite::NO_PARAMS;
 
 /// The available configuration keys.
 #[derive(
@@ -19,30 +22,45 @@ pub enum Config {
     MailUser,
     MailPw,
     MailPort,
+    ImapCertificateChecks,
     SendServer,
     SendUser,
     SendPw,
     SendPort,
+    SmtpCertificateChecks,
     ServerFlags,
+
     #[strum(props(default = "INBOX"))]
     ImapFolder,
+
     Displayname,
     Selfstatus,
     Selfavatar,
+
+    #[strum(props(default = "0"))]
+    BccSelf,
+
     #[strum(props(default = "1"))]
     E2eeEnabled,
+
     #[strum(props(default = "1"))]
     MdnsEnabled,
+
     #[strum(props(default = "1"))]
     InboxWatch,
+
     #[strum(props(default = "1"))]
     SentboxWatch,
+
     #[strum(props(default = "1"))]
     MvboxWatch,
+
     #[strum(props(default = "1"))]
     MvboxMove,
-    #[strum(props(default = "0"))]
+
+    #[strum(props(default = "0"))] // also change ShowEmails.default() on changes
     ShowEmails,
+
     SaveMimeHeaders,
     ConfiguredAddr,
     ConfiguredMailServer,
@@ -50,19 +68,23 @@ pub enum Config {
     ConfiguredMailPw,
     ConfiguredMailPort,
     ConfiguredMailSecurity,
+    ConfiguredImapCertificateChecks,
     ConfiguredSendServer,
     ConfiguredSendUser,
     ConfiguredSendPw,
     ConfiguredSendPort,
+    ConfiguredSmtpCertificateChecks,
     ConfiguredServerFlags,
     ConfiguredSendSecurity,
     ConfiguredE2EEEnabled,
     Configured,
-    // Deprecated
+
     #[strum(serialize = "sys.version")]
     SysVersion,
+
     #[strum(serialize = "sys.msgsize_max_recommended")]
     SysMsgsizeMaxRecommended,
+
     #[strum(serialize = "sys.config_keys")]
     SysConfigKeys,
 }
@@ -72,13 +94,13 @@ impl Context {
     pub fn get_config(&self, key: Config) -> Option<String> {
         let value = match key {
             Config::Selfavatar => {
-                let rel_path = self.sql.get_config(self, key);
-                rel_path.map(|p| dc_get_abs_path(self, &p).to_str().unwrap().to_string())
+                let rel_path = self.sql.get_raw_config(self, key);
+                rel_path.map(|p| dc_get_abs_path(self, &p).to_string_lossy().into_owned())
             }
             Config::SysVersion => Some((&*DC_VERSION_STR).clone()),
             Config::SysMsgsizeMaxRecommended => Some(format!("{}", 24 * 1024 * 1024 / 4 * 3)),
             Config::SysConfigKeys => Some(get_config_keys_string()),
-            _ => self.sql.get_config(self, key),
+            _ => self.sql.get_raw_config(self, key),
         };
 
         if value.is_some() {
@@ -92,27 +114,46 @@ impl Context {
         }
     }
 
+    pub fn get_config_int(&self, key: Config) -> i32 {
+        self.get_config(key)
+            .and_then(|s| s.parse().ok())
+            .unwrap_or_default()
+    }
+
+    pub fn get_config_bool(&self, key: Config) -> bool {
+        self.get_config_int(key) != 0
+    }
+
     /// Set the given config key.
     /// If `None` is passed as a value the value is cleared and set to the default if there is one.
-    pub fn set_config(&self, key: Config, value: Option<&str>) -> Result<(), Error> {
+    pub fn set_config(&self, key: Config, value: Option<&str>) -> crate::sql::Result<()> {
         match key {
-            Config::Selfavatar if value.is_some() => {
-                let rel_path = std::fs::canonicalize(value.unwrap())?;
+            Config::Selfavatar => {
                 self.sql
-                    .set_config(self, key, Some(&rel_path.to_string_lossy()))
+                    .execute("UPDATE contacts SET selfavatar_sent=0;", NO_PARAMS)?;
+                self.sql
+                    .set_raw_config_bool(self, "attach_selfavatar", true)?;
+                match value {
+                    Some(value) => {
+                        let blob = BlobObject::new_from_path(&self, value)?;
+                        blob.recode_to_avatar_size(self)?;
+                        self.sql.set_raw_config(self, key, Some(blob.as_name()))
+                    }
+                    None => self.sql.set_raw_config(self, key, None),
+                }
             }
             Config::InboxWatch => {
-                let ret = self.sql.set_config(self, key, value);
-                interrupt_imap_idle(self);
+                let ret = self.sql.set_raw_config(self, key, value);
+                interrupt_inbox_idle(self);
                 ret
             }
             Config::SentboxWatch => {
-                let ret = self.sql.set_config(self, key, value);
+                let ret = self.sql.set_raw_config(self, key, value);
                 interrupt_sentbox_idle(self);
                 ret
             }
             Config::MvboxWatch => {
-                let ret = self.sql.set_config(self, key, value);
+                let ret = self.sql.set_raw_config(self, key, value);
                 interrupt_mvbox_idle(self);
                 ret
             }
@@ -124,9 +165,9 @@ impl Context {
                     value
                 };
 
-                self.sql.set_config(self, key, val)
+                self.sql.set_raw_config(self, key, val)
             }
-            _ => self.sql.set_config(self, key, value),
+            _ => self.sql.set_raw_config(self, key, value),
         }
     }
 }
@@ -149,6 +190,12 @@ mod tests {
     use std::str::FromStr;
     use std::string::ToString;
 
+    use crate::constants::AVATAR_SIZE;
+    use crate::test_utils::*;
+    use image::GenericImageView;
+    use std::fs::File;
+    use std::io::Write;
+
     #[test]
     fn test_to_string() {
         assert_eq!(Config::MailServer.to_string(), "mail_server");
@@ -165,4 +212,57 @@ mod tests {
     fn test_default_prop() {
         assert_eq!(Config::ImapFolder.get_str("default"), Some("INBOX"));
     }
+
+    #[test]
+    fn test_selfavatar_outside_blobdir() {
+        let t = dummy_context();
+        let avatar_src = t.dir.path().join("avatar.jpg");
+        let avatar_bytes = include_bytes!("../test-data/image/avatar1000x1000.jpg");
+        File::create(&avatar_src)
+            .unwrap()
+            .write_all(avatar_bytes)
+            .unwrap();
+        let avatar_blob = t.ctx.get_blobdir().join("avatar.jpg");
+        assert!(!avatar_blob.exists());
+        t.ctx
+            .set_config(Config::Selfavatar, Some(&avatar_src.to_str().unwrap()))
+            .unwrap();
+        assert!(avatar_blob.exists());
+        assert!(std::fs::metadata(&avatar_blob).unwrap().len() < avatar_bytes.len() as u64);
+        let avatar_cfg = t.ctx.get_config(Config::Selfavatar);
+        assert_eq!(avatar_cfg, avatar_blob.to_str().map(|s| s.to_string()));
+
+        let img = image::open(avatar_src).unwrap();
+        assert_eq!(img.width(), 1000);
+        assert_eq!(img.height(), 1000);
+
+        let img = image::open(avatar_blob).unwrap();
+        assert_eq!(img.width(), AVATAR_SIZE);
+        assert_eq!(img.height(), AVATAR_SIZE);
+    }
+
+    #[test]
+    fn test_selfavatar_in_blobdir() {
+        let t = dummy_context();
+        let avatar_src = t.ctx.get_blobdir().join("avatar.png");
+        let avatar_bytes = include_bytes!("../test-data/image/avatar900x900.png");
+        File::create(&avatar_src)
+            .unwrap()
+            .write_all(avatar_bytes)
+            .unwrap();
+
+        let img = image::open(&avatar_src).unwrap();
+        assert_eq!(img.width(), 900);
+        assert_eq!(img.height(), 900);
+
+        t.ctx
+            .set_config(Config::Selfavatar, Some(&avatar_src.to_str().unwrap()))
+            .unwrap();
+        let avatar_cfg = t.ctx.get_config(Config::Selfavatar);
+        assert_eq!(avatar_cfg, avatar_src.to_str().map(|s| s.to_string()));
+
+        let img = image::open(avatar_src).unwrap();
+        assert_eq!(img.width(), AVATAR_SIZE);
+        assert_eq!(img.height(), AVATAR_SIZE);
+    }
 }

src/configure/auto_mozilla.rs

@@ -1,81 +1,110 @@
+//! # Thunderbird's Autoconfiguration implementation
+//!
+//! Documentation: https://developer.mozilla.org/en-US/docs/Mozilla/Thunderbird/Autoconfiguration */
 use quick_xml;
 use quick_xml::events::{BytesEnd, BytesStart, BytesText};
 
 use crate::constants::*;
 use crate::context::Context;
-use crate::dc_tools::*;
 use crate::login_param::LoginParam;
-use crate::x::*;
 
-use super::read_autoconf_file;
-/* ******************************************************************************
- * Thunderbird's Autoconfigure
- ******************************************************************************/
-/* documentation: https://developer.mozilla.org/en-US/docs/Mozilla/Thunderbird/Autoconfiguration */
-#[repr(C)]
-struct moz_autoconfigure_t<'a> {
-    pub in_0: &'a LoginParam,
+use super::read_url::read_url;
+
+#[derive(Debug, Fail)]
+pub enum Error {
+    #[fail(display = "Invalid email address: {:?}", _0)]
+    InvalidEmailAddress(String),
+
+    #[fail(display = "XML error at position {}", position)]
+    InvalidXml {
+        position: usize,
+        #[cause]
+        error: quick_xml::Error,
+    },
+
+    #[fail(display = "Bad or incomplete autoconfig")]
+    IncompleteAutoconfig(LoginParam),
+
+    #[fail(display = "Failed to get URL {}", _0)]
+    ReadUrlError(#[cause] super::read_url::Error),
+}
+
+pub type Result<T> = std::result::Result<T, Error>;
+
+impl From<super::read_url::Error> for Error {
+    fn from(err: super::read_url::Error) -> Error {
+        Error::ReadUrlError(err)
+    }
+}
+
+#[derive(Debug)]
+struct MozAutoconfigure<'a> {
+    pub in_emailaddr: &'a str,
     pub in_emaildomain: &'a str,
     pub in_emaillocalpart: &'a str,
     pub out: LoginParam,
-    pub out_imap_set: libc::c_int,
-    pub out_smtp_set: libc::c_int,
-    pub tag_server: libc::c_int,
-    pub tag_config: libc::c_int,
+    pub out_imap_set: bool,
+    pub out_smtp_set: bool,
+    pub tag_server: MozServer,
+    pub tag_config: MozConfigTag,
 }
 
-pub unsafe fn moz_autoconfigure(
-    context: &Context,
-    url: &str,
-    param_in: &LoginParam,
-) -> Option<LoginParam> {
-    let xml_raw = read_autoconf_file(context, url);
-    if xml_raw.is_null() {
-        return None;
-    }
+#[derive(Debug, PartialEq)]
+enum MozServer {
+    Undefined,
+    Imap,
+    Smtp,
+}
 
-    // Split address into local part and domain part.
-    let p = param_in.addr.find("@");
-    if p.is_none() {
-        free(xml_raw as *mut libc::c_void);
-        return None;
-    }
-    let (in_emaillocalpart, in_emaildomain) = param_in.addr.split_at(p.unwrap());
-    let in_emaildomain = &in_emaildomain[1..];
+#[derive(Debug)]
+enum MozConfigTag {
+    Undefined,
+    Hostname,
+    Port,
+    Sockettype,
+    Username,
+}
 
-    let mut reader = quick_xml::Reader::from_str(as_str(xml_raw));
+fn parse_xml(in_emailaddr: &str, xml_raw: &str) -> Result<LoginParam> {
+    let mut reader = quick_xml::Reader::from_str(xml_raw);
     reader.trim_text(true);
 
-    let mut buf = Vec::new();
+    // Split address into local part and domain part.
+    let p = in_emailaddr
+        .find('@')
+        .ok_or_else(|| Error::InvalidEmailAddress(in_emailaddr.to_string()))?;
+    let (in_emaillocalpart, in_emaildomain) = in_emailaddr.split_at(p);
+    let in_emaildomain = &in_emaildomain[1..];
 
-    let mut moz_ac = moz_autoconfigure_t {
-        in_0: param_in,
+    let mut moz_ac = MozAutoconfigure {
+        in_emailaddr,
         in_emaildomain,
         in_emaillocalpart,
         out: LoginParam::new(),
-        out_imap_set: 0,
-        out_smtp_set: 0,
-        tag_server: 0,
-        tag_config: 0,
+        out_imap_set: false,
+        out_smtp_set: false,
+        tag_server: MozServer::Undefined,
+        tag_config: MozConfigTag::Undefined,
     };
+
+    let mut buf = Vec::new();
     loop {
-        match reader.read_event(&mut buf) {
-            Ok(quick_xml::events::Event::Start(ref e)) => {
+        let event = reader
+            .read_event(&mut buf)
+            .map_err(|error| Error::InvalidXml {
+                position: reader.buffer_position(),
+                error,
+            })?;
+
+        match event {
+            quick_xml::events::Event::Start(ref e) => {
                 moz_autoconfigure_starttag_cb(e, &mut moz_ac, &reader)
             }
-            Ok(quick_xml::events::Event::End(ref e)) => moz_autoconfigure_endtag_cb(e, &mut moz_ac),
-            Ok(quick_xml::events::Event::Text(ref e)) => {
+            quick_xml::events::Event::End(ref e) => moz_autoconfigure_endtag_cb(e, &mut moz_ac),
+            quick_xml::events::Event::Text(ref e) => {
                 moz_autoconfigure_text_cb(e, &mut moz_ac, &reader)
             }
-            Err(e) => {
-                error!(
-                    context,
-                    "Configure xml: Error at position {}: {:?}",
-                    reader.buffer_position(),
-                    e
-                );
-            }
-            Ok(quick_xml::events::Event::Eof) => break,
+            quick_xml::events::Event::Eof => break,
             _ => (),
         }
         buf.clear();
@@ -86,24 +115,37 @@ pub unsafe fn moz_autoconfigure(
         || moz_ac.out.send_server.is_empty()
         || moz_ac.out.send_port == 0
     {
-        let r = moz_ac.out.to_string();
-        warn!(context, "Bad or incomplete autoconfig: {}", r,);
-        free(xml_raw as *mut libc::c_void);
-        return None;
+        Err(Error::IncompleteAutoconfig(moz_ac.out))
+    } else {
+        Ok(moz_ac.out)
     }
+}
 
-    free(xml_raw as *mut libc::c_void);
-    Some(moz_ac.out)
+pub fn moz_autoconfigure(
+    context: &Context,
+    url: &str,
+    param_in: &LoginParam,
+) -> Result<LoginParam> {
+    let xml_raw = read_url(context, url)?;
+
+    let res = parse_xml(&param_in.addr, &xml_raw);
+    if let Err(err) = &res {
+        warn!(
+            context,
+            "Failed to parse Thunderbird autoconfiguration XML: {}", err
+        );
+    }
+    res
 }
 
 fn moz_autoconfigure_text_cb<B: std::io::BufRead>(
     event: &BytesText,
-    moz_ac: &mut moz_autoconfigure_t,
+    moz_ac: &mut MozAutoconfigure,
     reader: &quick_xml::Reader<B>,
 ) {
     let val = event.unescape_and_decode(reader).unwrap_or_default();
 
-    let addr = &moz_ac.in_0.addr;
+    let addr = moz_ac.in_emailaddr;
     let email_local = moz_ac.in_emaillocalpart;
     let email_domain = moz_ac.in_emaildomain;
 
@@ -113,12 +155,12 @@ fn moz_autoconfigure_text_cb<B: std::io::BufRead>(
         .replace("%EMAILLOCALPART%", email_local)
         .replace("%EMAILDOMAIN%", email_domain);
 
-    if moz_ac.tag_server == 1 {
-        match moz_ac.tag_config {
-            10 => moz_ac.out.mail_server = val,
-            11 => moz_ac.out.mail_port = val.parse().unwrap_or_default(),
-            12 => moz_ac.out.mail_user = val,
-            13 => {
+    match moz_ac.tag_server {
+        MozServer::Imap => match moz_ac.tag_config {
+            MozConfigTag::Hostname => moz_ac.out.mail_server = val,
+            MozConfigTag::Port => moz_ac.out.mail_port = val.parse().unwrap_or_default(),
+            MozConfigTag::Username => moz_ac.out.mail_user = val,
+            MozConfigTag::Sockettype => {
                 let val_lower = val.to_lowercase();
                 if val_lower == "ssl" {
                     moz_ac.out.server_flags |= DC_LP_IMAP_SOCKET_SSL as i32
@@ -131,13 +173,12 @@ fn moz_autoconfigure_text_cb<B: std::io::BufRead>(
                 }
             }
             _ => {}
-        }
-    } else if moz_ac.tag_server == 2 {
-        match moz_ac.tag_config {
-            10 => moz_ac.out.send_server = val,
-            11 => moz_ac.out.send_port = val.parse().unwrap_or_default(),
-            12 => moz_ac.out.send_user = val,
-            13 => {
+        },
+        MozServer::Smtp => match moz_ac.tag_config {
+            MozConfigTag::Hostname => moz_ac.out.send_server = val,
+            MozConfigTag::Port => moz_ac.out.send_port = val.parse().unwrap_or_default(),
+            MozConfigTag::Username => moz_ac.out.send_user = val,
+            MozConfigTag::Sockettype => {
                 let val_lower = val.to_lowercase();
                 if val_lower == "ssl" {
                     moz_ac.out.server_flags |= DC_LP_SMTP_SOCKET_SSL as i32
@@ -150,29 +191,34 @@ fn moz_autoconfigure_text_cb<B: std::io::BufRead>(
                 }
             }
             _ => {}
-        }
+        },
+        MozServer::Undefined => {}
     }
 }
 
-fn moz_autoconfigure_endtag_cb(event: &BytesEnd, moz_ac: &mut moz_autoconfigure_t) {
+fn moz_autoconfigure_endtag_cb(event: &BytesEnd, moz_ac: &mut MozAutoconfigure) {
     let tag = String::from_utf8_lossy(event.name()).trim().to_lowercase();
 
     if tag == "incomingserver" {
-        moz_ac.tag_server = 0;
-        moz_ac.tag_config = 0;
-        moz_ac.out_imap_set = 1;
+        if moz_ac.tag_server == MozServer::Imap {
+            moz_ac.out_imap_set = true;
+        }
+        moz_ac.tag_server = MozServer::Undefined;
+        moz_ac.tag_config = MozConfigTag::Undefined;
     } else if tag == "outgoingserver" {
-        moz_ac.tag_server = 0;
-        moz_ac.tag_config = 0;
-        moz_ac.out_smtp_set = 1;
+        if moz_ac.tag_server == MozServer::Smtp {
+            moz_ac.out_smtp_set = true;
+        }
+        moz_ac.tag_server = MozServer::Undefined;
+        moz_ac.tag_config = MozConfigTag::Undefined;
     } else {
-        moz_ac.tag_config = 0;
+        moz_ac.tag_config = MozConfigTag::Undefined;
     }
 }
 
 fn moz_autoconfigure_starttag_cb<B: std::io::BufRead>(
     event: &BytesStart,
-    moz_ac: &mut moz_autoconfigure_t,
+    moz_ac: &mut MozAutoconfigure,
     reader: &quick_xml::Reader<B>,
 ) {
     let tag = String::from_utf8_lossy(event.name()).trim().to_lowercase();
@@ -189,25 +235,115 @@ fn moz_autoconfigure_starttag_cb<B: std::io::BufRead>(
                 .unwrap_or_default()
                 .to_lowercase();
 
-            if typ == "imap" && moz_ac.out_imap_set == 0 {
-                1
+            if typ == "imap" && !moz_ac.out_imap_set {
+                MozServer::Imap
             } else {
-                0
+                MozServer::Undefined
             }
         } else {
-            0
+            MozServer::Undefined
         };
-        moz_ac.tag_config = 0;
+        moz_ac.tag_config = MozConfigTag::Undefined;
     } else if tag == "outgoingserver" {
-        moz_ac.tag_server = if moz_ac.out_smtp_set == 0 { 2 } else { 0 };
-        moz_ac.tag_config = 0;
+        moz_ac.tag_server = if !moz_ac.out_smtp_set {
+            MozServer::Smtp
+        } else {
+            MozServer::Undefined
+        };
+        moz_ac.tag_config = MozConfigTag::Undefined;
     } else if tag == "hostname" {
-        moz_ac.tag_config = 10;
+        moz_ac.tag_config = MozConfigTag::Hostname;
     } else if tag == "port" {
-        moz_ac.tag_config = 11;
+        moz_ac.tag_config = MozConfigTag::Port;
     } else if tag == "sockettype" {
-        moz_ac.tag_config = 13;
+        moz_ac.tag_config = MozConfigTag::Sockettype;
     } else if tag == "username" {
-        moz_ac.tag_config = 12;
+        moz_ac.tag_config = MozConfigTag::Username;
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_parse_outlook_autoconfig() {
+        // Copied from https://autoconfig.thunderbird.net/v1.1/outlook.com on 2019-10-11
+        let xml_raw =
+"<clientConfig version=\"1.1\">
+  <emailProvider id=\"outlook.com\">
+    <domain>hotmail.com</domain>
+    <domain>hotmail.co.uk</domain>
+    <domain>hotmail.co.jp</domain>
+    <domain>hotmail.com.br</domain>
+    <domain>hotmail.de</domain>
+    <domain>hotmail.fr</domain>
+    <domain>hotmail.it</domain>
+    <domain>hotmail.es</domain>
+    <domain>live.com</domain>
+    <domain>live.co.uk</domain>
+    <domain>live.co.jp</domain>
+    <domain>live.de</domain>
+    <domain>live.fr</domain>
+    <domain>live.it</domain>
+    <domain>live.jp</domain>
+    <domain>msn.com</domain>
+    <domain>outlook.com</domain>
+    <displayName>Outlook.com (Microsoft)</displayName>
+    <displayShortName>Outlook</displayShortName>
+    <incomingServer type=\"exchange\">
+      <hostname>outlook.office365.com</hostname>
+      <port>443</port>
+      <username>%EMAILADDRESS%</username>
+      <socketType>SSL</socketType>
+      <authentication>OAuth2</authentication>
+      <owaURL>https://outlook.office365.com/owa/</owaURL>
+      <ewsURL>https://outlook.office365.com/ews/exchange.asmx</ewsURL>
+      <useGlobalPreferredServer>true</useGlobalPreferredServer>
+    </incomingServer>
+    <incomingServer type=\"imap\">
+      <hostname>outlook.office365.com</hostname>
+      <port>993</port>
+      <socketType>SSL</socketType>
+      <authentication>password-cleartext</authentication>
+      <username>%EMAILADDRESS%</username>
+    </incomingServer>
+    <incomingServer type=\"pop3\">
+      <hostname>outlook.office365.com</hostname>
+      <port>995</port>
+      <socketType>SSL</socketType>
+      <authentication>password-cleartext</authentication>
+      <username>%EMAILADDRESS%</username>
+      <pop3>
+        <leaveMessagesOnServer>true</leaveMessagesOnServer>
+        <!-- Outlook.com docs specifically mention that POP3 deletes have effect on the main inbox on webmail and IMAP -->
+      </pop3>
+    </incomingServer>
+    <outgoingServer type=\"smtp\">
+      <hostname>smtp.office365.com</hostname>
+      <port>587</port>
+      <socketType>STARTTLS</socketType>
+      <authentication>password-cleartext</authentication>
+      <username>%EMAILADDRESS%</username>
+    </outgoingServer>
+    <documentation url=\"http://windows.microsoft.com/en-US/windows/outlook/send-receive-from-app\">
+      <descr lang=\"en\">Set up an email app with Outlook.com</descr>
+    </documentation>
+  </emailProvider>
+  <webMail>
+    <loginPage url=\"https://www.outlook.com/\"/>
+    <loginPageInfo url=\"https://www.outlook.com/\">
+      <username>%EMAILADDRESS%</username>
+      <usernameField id=\"i0116\" name=\"login\"/>
+      <passwordField id=\"i0118\" name=\"passwd\"/>
+      <loginButton id=\"idSIButton9\" name=\"SI\"/>
+    </loginPageInfo>
+  </webMail>
+</clientConfig>";
+        let res = parse_xml("example@outlook.com", xml_raw).expect("XML parsing failed");
+        assert_eq!(res.mail_server, "outlook.office365.com");
+        assert_eq!(res.mail_port, 993);
+        assert_eq!(res.send_server, "smtp.office365.com");
+        assert_eq!(res.send_port, 587);
     }
 }

src/configure/auto_outlook.rs

@@ -1,213 +1,269 @@
+//! Outlook's Autodiscover
+
 use quick_xml;
-use quick_xml::events::{BytesEnd, BytesStart, BytesText};
+use quick_xml::events::BytesEnd;
 
 use crate::constants::*;
 use crate::context::Context;
-use crate::dc_tools::*;
 use crate::login_param::LoginParam;
-use crate::x::*;
-use std::ptr;
 
-use super::read_autoconf_file;
-/* ******************************************************************************
- * Outlook's Autodiscover
- ******************************************************************************/
-#[repr(C)]
-struct outlk_autodiscover_t<'a> {
-    pub in_0: &'a LoginParam,
-    pub out: LoginParam,
-    pub out_imap_set: libc::c_int,
-    pub out_smtp_set: libc::c_int,
-    pub tag_config: libc::c_int,
-    pub config: [*mut libc::c_char; 6],
-    pub redirect: *mut libc::c_char,
+use super::read_url::read_url;
+
+#[derive(Debug, Fail)]
+pub enum Error {
+    #[fail(display = "XML error at position {}", position)]
+    InvalidXml {
+        position: usize,
+        #[cause]
+        error: quick_xml::Error,
+    },
+
+    #[fail(display = "Bad or incomplete autoconfig")]
+    IncompleteAutoconfig(LoginParam),
+
+    #[fail(display = "Failed to get URL {}", _0)]
+    ReadUrlError(#[cause] super::read_url::Error),
+
+    #[fail(display = "Number of redirection is exceeded")]
+    RedirectionError,
 }
 
-pub unsafe fn outlk_autodiscover(
-    context: &Context,
-    url__: &str,
-    param_in: &LoginParam,
-) -> Option<LoginParam> {
-    let mut xml_raw: *mut libc::c_char = ptr::null_mut();
-    let mut url = url__.strdup();
-    let mut outlk_ad = outlk_autodiscover_t {
-        in_0: param_in,
+pub type Result<T> = std::result::Result<T, Error>;
+
+impl From<super::read_url::Error> for Error {
+    fn from(err: super::read_url::Error) -> Error {
+        Error::ReadUrlError(err)
+    }
+}
+
+struct OutlookAutodiscover {
+    pub out: LoginParam,
+    pub out_imap_set: bool,
+    pub out_smtp_set: bool,
+    pub config_type: Option<String>,
+    pub config_server: String,
+    pub config_port: i32,
+    pub config_ssl: String,
+    pub config_redirecturl: Option<String>,
+}
+
+enum ParsingResult {
+    LoginParam(LoginParam),
+    RedirectUrl(String),
+}
+
+fn parse_xml(xml_raw: &str) -> Result<ParsingResult> {
+    let mut outlk_ad = OutlookAutodiscover {
         out: LoginParam::new(),
-        out_imap_set: 0,
-        out_smtp_set: 0,
-        tag_config: 0,
-        config: [ptr::null_mut(); 6],
-        redirect: ptr::null_mut(),
+        out_imap_set: false,
+        out_smtp_set: false,
+        config_type: None,
+        config_server: String::new(),
+        config_port: 0,
+        config_ssl: String::new(),
+        config_redirecturl: None,
     };
-    let ok_to_continue;
-    let mut i = 0;
+
+    let mut reader = quick_xml::Reader::from_str(&xml_raw);
+    reader.trim_text(true);
+
+    let mut buf = Vec::new();
+
+    let mut current_tag: Option<String> = None;
+
     loop {
-        if !(i < 10) {
-            ok_to_continue = true;
-            break;
-        }
-        memset(
-            &mut outlk_ad as *mut outlk_autodiscover_t as *mut libc::c_void,
-            0,
-            ::std::mem::size_of::<outlk_autodiscover_t>(),
-        );
-        xml_raw = read_autoconf_file(context, as_str(url));
-        if xml_raw.is_null() {
-            ok_to_continue = false;
-            break;
-        }
+        let event = reader
+            .read_event(&mut buf)
+            .map_err(|error| Error::InvalidXml {
+                position: reader.buffer_position(),
+                error,
+            })?;
 
-        let mut reader = quick_xml::Reader::from_str(as_str(xml_raw));
-        reader.trim_text(true);
+        match event {
+            quick_xml::events::Event::Start(ref e) => {
+                let tag = String::from_utf8_lossy(e.name()).trim().to_lowercase();
 
-        let mut buf = Vec::new();
+                if tag == "protocol" {
+                    outlk_ad.config_type = None;
+                    outlk_ad.config_server = String::new();
+                    outlk_ad.config_port = 0;
+                    outlk_ad.config_ssl = String::new();
+                    outlk_ad.config_redirecturl = None;
 
-        loop {
-            match reader.read_event(&mut buf) {
-                Ok(quick_xml::events::Event::Start(ref e)) => {
-                    outlk_autodiscover_starttag_cb(e, &mut outlk_ad)
+                    current_tag = None;
+                } else {
+                    current_tag = Some(tag);
                 }
-                Ok(quick_xml::events::Event::End(ref e)) => {
-                    outlk_autodiscover_endtag_cb(e, &mut outlk_ad)
-                }
-                Ok(quick_xml::events::Event::Text(ref e)) => {
-                    outlk_autodiscover_text_cb(e, &mut outlk_ad, &reader)
-                }
-                Err(e) => {
-                    error!(
-                        context,
-                        "Configure xml: Error at position {}: {:?}",
-                        reader.buffer_position(),
-                        e
-                    );
-                }
-                Ok(quick_xml::events::Event::Eof) => break,
-                _ => (),
             }
-            buf.clear();
-        }
+            quick_xml::events::Event::End(ref e) => {
+                outlk_autodiscover_endtag_cb(e, &mut outlk_ad);
+                current_tag = None;
+            }
+            quick_xml::events::Event::Text(ref e) => {
+                let val = e.unescape_and_decode(&reader).unwrap_or_default();
 
-        if !(!outlk_ad.config[5].is_null()
-            && 0 != *outlk_ad.config[5usize].offset(0isize) as libc::c_int)
-        {
-            ok_to_continue = true;
-            break;
+                if let Some(ref tag) = current_tag {
+                    match tag.as_str() {
+                        "type" => {
+                            outlk_ad.config_type = Some(val.trim().to_lowercase().to_string())
+                        }
+                        "server" => outlk_ad.config_server = val.trim().to_string(),
+                        "port" => outlk_ad.config_port = val.trim().parse().unwrap_or_default(),
+                        "ssl" => outlk_ad.config_ssl = val.trim().to_string(),
+                        "redirecturl" => outlk_ad.config_redirecturl = Some(val.trim().to_string()),
+                        _ => {}
+                    };
+                }
+            }
+            quick_xml::events::Event::Eof => break,
+            _ => (),
         }
-        free(url as *mut libc::c_void);
-        url = dc_strdup(outlk_ad.config[5usize]);
-
-        outlk_clean_config(&mut outlk_ad);
-        free(xml_raw as *mut libc::c_void);
-        xml_raw = ptr::null_mut();
-        i += 1;
+        buf.clear();
     }
 
-    if ok_to_continue {
+    // XML redirect via redirecturl
+    let res = if outlk_ad.config_redirecturl.is_none()
+        || outlk_ad.config_redirecturl.as_ref().unwrap().is_empty()
+    {
         if outlk_ad.out.mail_server.is_empty()
             || outlk_ad.out.mail_port == 0
             || outlk_ad.out.send_server.is_empty()
             || outlk_ad.out.send_port == 0
         {
-            let r = outlk_ad.out.to_string();
-            warn!(context, "Bad or incomplete autoconfig: {}", r,);
-            free(url as *mut libc::c_void);
-            free(xml_raw as *mut libc::c_void);
-            outlk_clean_config(&mut outlk_ad);
+            return Err(Error::IncompleteAutoconfig(outlk_ad.out));
+        }
+        ParsingResult::LoginParam(outlk_ad.out)
+    } else {
+        ParsingResult::RedirectUrl(outlk_ad.config_redirecturl.unwrap())
+    };
+    Ok(res)
+}
 
-            return None;
+pub fn outlk_autodiscover(
+    context: &Context,
+    url: &str,
+    _param_in: &LoginParam,
+) -> Result<LoginParam> {
+    let mut url = url.to_string();
+    /* Follow up to 10 xml-redirects (http-redirects are followed in read_url() */
+    for _i in 0..10 {
+        let xml_raw = read_url(context, &url)?;
+        let res = parse_xml(&xml_raw);
+        if let Err(err) = &res {
+            warn!(context, "{}", err);
+        }
+        match res? {
+            ParsingResult::RedirectUrl(redirect_url) => url = redirect_url,
+            ParsingResult::LoginParam(login_param) => return Ok(login_param),
         }
     }
-    free(url as *mut libc::c_void);
-    free(xml_raw as *mut libc::c_void);
-    outlk_clean_config(&mut outlk_ad);
-    Some(outlk_ad.out)
+    Err(Error::RedirectionError)
 }
 
-unsafe fn outlk_clean_config(mut outlk_ad: *mut outlk_autodiscover_t) {
-    for i in 0..6 {
-        free((*outlk_ad).config[i] as *mut libc::c_void);
-        (*outlk_ad).config[i] = ptr::null_mut();
-    }
-}
-
-fn outlk_autodiscover_text_cb<B: std::io::BufRead>(
-    event: &BytesText,
-    outlk_ad: &mut outlk_autodiscover_t,
-    reader: &quick_xml::Reader<B>,
-) {
-    let val = event.unescape_and_decode(reader).unwrap_or_default();
-
-    unsafe {
-        free(outlk_ad.config[outlk_ad.tag_config as usize].cast());
-        outlk_ad.config[outlk_ad.tag_config as usize] = val.trim().strdup();
-    }
-}
-
-unsafe fn outlk_autodiscover_endtag_cb(event: &BytesEnd, outlk_ad: &mut outlk_autodiscover_t) {
+fn outlk_autodiscover_endtag_cb(event: &BytesEnd, outlk_ad: &mut OutlookAutodiscover) {
     let tag = String::from_utf8_lossy(event.name()).trim().to_lowercase();
 
     if tag == "protocol" {
-        if !outlk_ad.config[1].is_null() {
-            let port = dc_atoi_null_is_0(outlk_ad.config[3]);
-            let ssl_on = (!outlk_ad.config[4].is_null()
-                && strcasecmp(
-                    outlk_ad.config[4],
-                    b"on\x00" as *const u8 as *const libc::c_char,
-                ) == 0) as libc::c_int;
-            let ssl_off = (!outlk_ad.config[4].is_null()
-                && strcasecmp(
-                    outlk_ad.config[4],
-                    b"off\x00" as *const u8 as *const libc::c_char,
-                ) == 0) as libc::c_int;
-            if strcasecmp(
-                outlk_ad.config[1],
-                b"imap\x00" as *const u8 as *const libc::c_char,
-            ) == 0
-                && outlk_ad.out_imap_set == 0
-            {
-                outlk_ad.out.mail_server = to_string(outlk_ad.config[2]);
+        if let Some(type_) = &outlk_ad.config_type {
+            let port = outlk_ad.config_port;
+            let ssl_on = outlk_ad.config_ssl == "on";
+            let ssl_off = outlk_ad.config_ssl == "off";
+            if type_ == "imap" && !outlk_ad.out_imap_set {
+                outlk_ad.out.mail_server =
+                    std::mem::replace(&mut outlk_ad.config_server, String::new());
                 outlk_ad.out.mail_port = port;
-                if 0 != ssl_on {
+                if ssl_on {
                     outlk_ad.out.server_flags |= DC_LP_IMAP_SOCKET_SSL as i32
-                } else if 0 != ssl_off {
+                } else if ssl_off {
                     outlk_ad.out.server_flags |= DC_LP_IMAP_SOCKET_PLAIN as i32
                 }
-                outlk_ad.out_imap_set = 1
-            } else if strcasecmp(
-                outlk_ad.config[1usize],
-                b"smtp\x00" as *const u8 as *const libc::c_char,
-            ) == 0
-                && outlk_ad.out_smtp_set == 0
-            {
-                outlk_ad.out.send_server = to_string(outlk_ad.config[2]);
-                outlk_ad.out.send_port = port;
-                if 0 != ssl_on {
+                outlk_ad.out_imap_set = true
+            } else if type_ == "smtp" && !outlk_ad.out_smtp_set {
+                outlk_ad.out.send_server =
+                    std::mem::replace(&mut outlk_ad.config_server, String::new());
+                outlk_ad.out.send_port = outlk_ad.config_port;
+                if ssl_on {
                     outlk_ad.out.server_flags |= DC_LP_SMTP_SOCKET_SSL as i32
-                } else if 0 != ssl_off {
+                } else if ssl_off {
                     outlk_ad.out.server_flags |= DC_LP_SMTP_SOCKET_PLAIN as i32
                 }
-                outlk_ad.out_smtp_set = 1
+                outlk_ad.out_smtp_set = true
             }
         }
-        outlk_clean_config(outlk_ad);
     }
-    outlk_ad.tag_config = 0;
 }
 
-fn outlk_autodiscover_starttag_cb(event: &BytesStart, outlk_ad: &mut outlk_autodiscover_t) {
-    let tag = String::from_utf8_lossy(event.name()).trim().to_lowercase();
+#[cfg(test)]
+mod tests {
+    use super::*;
 
-    if tag == "protocol" {
-        unsafe { outlk_clean_config(outlk_ad) };
-    } else if tag == "type" {
-        outlk_ad.tag_config = 1
-    } else if tag == "server" {
-        outlk_ad.tag_config = 2
-    } else if tag == "port" {
-        outlk_ad.tag_config = 3
-    } else if tag == "ssl" {
-        outlk_ad.tag_config = 4
-    } else if tag == "redirecturl" {
-        outlk_ad.tag_config = 5
-    };
+    #[test]
+    fn test_parse_redirect() {
+        let res = parse_xml("
+<?xml version=\"1.0\" encoding=\"utf-8\"?>
+  <Autodiscover xmlns=\"http://schemas.microsoft.com/exchange/autodiscover/responseschema/2006\">
+    <Response xmlns=\"http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a\">
+      <Account>
+        <AccountType>email</AccountType>
+        <Action>redirectUrl</Action>
+        <RedirectUrl>https://mail.example.com/autodiscover/autodiscover.xml</RedirectUrl>
+      </Account>
+    </Response>
+  </Autodiscover>
+ ").expect("XML is not parsed successfully");
+        match res {
+            ParsingResult::LoginParam(_lp) => {
+                panic!("redirecturl is not found");
+            }
+            ParsingResult::RedirectUrl(url) => {
+                assert_eq!(
+                    url,
+                    "https://mail.example.com/autodiscover/autodiscover.xml"
+                );
+            }
+        }
+    }
+
+    #[test]
+    fn test_parse_loginparam() {
+        let res = parse_xml(
+            "\
+<?xml version=\"1.0\" encoding=\"utf-8\"?>
+<Autodiscover xmlns=\"http://schemas.microsoft.com/exchange/autodiscover/responseschema/2006\">
+  <Response xmlns=\"http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a\">
+    <Account>
+      <AccountType>email</AccountType>
+      <Action>settings</Action>
+      <Protocol>
+        <Type>IMAP</Type>
+        <Server>example.com</Server>
+        <Port>993</Port>
+        <SSL>on</SSL>
+        <AuthRequired>on</AuthRequired>
+      </Protocol>
+      <Protocol>
+        <Type>SMTP</Type>
+        <Server>smtp.example.com</Server>
+        <Port>25</Port>
+        <SSL>off</SSL>
+        <AuthRequired>on</AuthRequired>
+      </Protocol>
+    </Account>
+  </Response>
+</Autodiscover>",
+        )
+        .expect("XML is not parsed successfully");
+
+        match res {
+            ParsingResult::LoginParam(lp) => {
+                assert_eq!(lp.mail_server, "example.com");
+                assert_eq!(lp.mail_port, 993);
+                assert_eq!(lp.send_server, "smtp.example.com");
+                assert_eq!(lp.send_port, 25);
+            }
+            ParsingResult::RedirectUrl(_) => {
+                panic!("RedirectUrl is not expected");
+            }
+        }
+    }
 }

src/configure/read_url.rs

@@ -0,0 +1,26 @@
+use crate::context::Context;
+
+#[derive(Debug, Fail)]
+pub enum Error {
+    #[fail(display = "URL request error")]
+    GetError(#[cause] reqwest::Error),
+}
+
+pub type Result<T> = std::result::Result<T, Error>;
+
+pub fn read_url(context: &Context, url: &str) -> Result<String> {
+    info!(context, "Requesting URL {}", url);
+
+    match reqwest::blocking::Client::new()
+        .get(url)
+        .send()
+        .and_then(|res| res.text())
+    {
+        Ok(res) => Ok(res),
+        Err(err) => {
+            info!(context, "Can\'t read URL {}", url);
+
+            Err(Error::GetError(err))
+        }
+    }
+}

src/constants.rs

@@ -1,5 +1,5 @@
-//! Constants
-#![allow(non_camel_case_types, dead_code)]
+//! # Constants
+#![allow(dead_code)]
 
 use deltachat_derive::*;
 use lazy_static::lazy_static;
@@ -8,24 +8,8 @@ lazy_static! {
     pub static ref DC_VERSION_STR: String = env!("CARGO_PKG_VERSION").to_string();
 }
 
-#[repr(u8)]
-#[derive(Debug, Display, Clone, Copy, PartialEq, Eq, FromPrimitive, ToPrimitive, ToSql, FromSql)]
-pub enum MoveState {
-    Undefined = 0,
-    Pending = 1,
-    Stay = 2,
-    Moving = 3,
-}
-
-impl Default for MoveState {
-    fn default() -> Self {
-        MoveState::Undefined
-    }
-}
-
 // some defaults
 const DC_E2EE_DEFAULT_ENABLED: i32 = 1;
-pub const DC_MDNS_DEFAULT_ENABLED: i32 = 1;
 const DC_INBOX_WATCH_DEFAULT: i32 = 1;
 const DC_SENTBOX_WATCH_DEFAULT: i32 = 1;
 const DC_MVBOX_WATCH_DEFAULT: i32 = 1;
@@ -45,29 +29,39 @@ impl Default for Blocked {
     }
 }
 
+#[derive(Debug, Display, Clone, Copy, PartialEq, Eq, FromPrimitive, ToPrimitive, FromSql, ToSql)]
+#[repr(u8)]
+pub enum ShowEmails {
+    Off = 0,
+    AcceptedContacts = 1,
+    All = 2,
+}
+
+impl Default for ShowEmails {
+    fn default() -> Self {
+        ShowEmails::Off // also change Config.ShowEmails props(default) on changes
+    }
+}
+
 pub const DC_IMAP_SEEN: u32 = 0x1;
 
 pub const DC_HANDSHAKE_CONTINUE_NORMAL_PROCESSING: i32 = 0x01;
 pub const DC_HANDSHAKE_STOP_NORMAL_PROCESSING: i32 = 0x02;
 pub const DC_HANDSHAKE_ADD_DELETE_JOB: i32 = 0x04;
 
+pub(crate) const DC_FROM_HANDSHAKE: i32 = 0x01;
+
 pub const DC_GCL_ARCHIVED_ONLY: usize = 0x01;
 pub const DC_GCL_NO_SPECIALS: usize = 0x02;
 pub const DC_GCL_ADD_ALLDONE_HINT: usize = 0x04;
 
-const DC_GCM_ADDDAYMARKER: usize = 0x01;
+pub const DC_GCM_ADDDAYMARKER: u32 = 0x01;
 
 pub const DC_GCL_VERIFIED_ONLY: usize = 0x01;
 pub const DC_GCL_ADD_SELF: usize = 0x02;
 
-/// param1 is a directory where the keys are written to
-const DC_IMEX_EXPORT_SELF_KEYS: usize = 1;
-/// param1 is a directory where the keys are searched in and read from
-const DC_IMEX_IMPORT_SELF_KEYS: usize = 2;
-/// param1 is a directory where the backup is written to
-const DC_IMEX_EXPORT_BACKUP: usize = 11;
-/// param1 is the file with the backup to import
-const DC_IMEX_IMPORT_BACKUP: usize = 12;
+// unchanged user avatars are resent to the recipients every some days
+pub const DC_RESEND_USER_AVATAR_DAYS: i64 = 14;
 
 /// virtual chat showing all messages belonging to chats flagged with chats.blocked=2
 pub(crate) const DC_CHAT_ID_DEADDROP: u32 = 1;
@@ -112,20 +106,28 @@ impl Default for Chattype {
 }
 
 pub const DC_MSG_ID_MARKER1: u32 = 1;
-const DC_MSG_ID_DAYMARKER: u32 = 9;
+pub const DC_MSG_ID_DAYMARKER: u32 = 9;
 pub const DC_MSG_ID_LAST_SPECIAL: u32 = 9;
 
 /// approx. max. length returned by dc_msg_get_text()
 const DC_MAX_GET_TEXT_LEN: usize = 30000;
 /// approx. max. length returned by dc_get_msg_info()
-const DC_MAX_GET_INFO_LEN: usize = 100000;
+const DC_MAX_GET_INFO_LEN: usize = 100_000;
 
 pub const DC_CONTACT_ID_UNDEFINED: u32 = 0;
 pub const DC_CONTACT_ID_SELF: u32 = 1;
-const DC_CONTACT_ID_DEVICE: u32 = 2;
+pub const DC_CONTACT_ID_INFO: u32 = 2;
+pub const DC_CONTACT_ID_DEVICE: u32 = 5;
 pub const DC_CONTACT_ID_LAST_SPECIAL: u32 = 9;
 
-pub const DC_CREATE_MVBOX: usize = 1;
+// decorative address that is used for DC_CONTACT_ID_DEVICE
+// when an api that returns an email is called.
+pub const DC_CONTACT_ID_DEVICE_ADDR: &str = "device@localhost";
+
+// Flags for empty server job
+
+pub const DC_EMPTY_MVBOX: u32 = 0x01;
+pub const DC_EMPTY_INBOX: u32 = 0x02;
 
 // Flags for configuring IMAP and SMTP servers.
 // These flags are optional
@@ -135,23 +137,23 @@ pub const DC_CREATE_MVBOX: usize = 1;
 /// Force OAuth2 authorization. This flag does not skip automatic configuration.
 /// Before calling configure() with DC_LP_AUTH_OAUTH2 set,
 /// the user has to confirm access at the URL returned by dc_get_oauth2_url().
-pub const DC_LP_AUTH_OAUTH2: usize = 0x2;
+pub const DC_LP_AUTH_OAUTH2: i32 = 0x2;
 
 /// Force NORMAL authorization, this is the default.
 /// If this flag is set, automatic configuration is skipped.
-pub const DC_LP_AUTH_NORMAL: usize = 0x4;
+pub const DC_LP_AUTH_NORMAL: i32 = 0x4;
 
 /// Connect to IMAP via STARTTLS.
 /// If this flag is set, automatic configuration is skipped.
-pub const DC_LP_IMAP_SOCKET_STARTTLS: usize = 0x100;
+pub const DC_LP_IMAP_SOCKET_STARTTLS: i32 = 0x100;
 
 /// Connect to IMAP via SSL.
 /// If this flag is set, automatic configuration is skipped.
-pub const DC_LP_IMAP_SOCKET_SSL: usize = 0x200;
+pub const DC_LP_IMAP_SOCKET_SSL: i32 = 0x200;
 
 /// Connect to IMAP unencrypted, this should not be used.
 /// If this flag is set, automatic configuration is skipped.
-pub const DC_LP_IMAP_SOCKET_PLAIN: usize = 0x400;
+pub const DC_LP_IMAP_SOCKET_PLAIN: i32 = 0x400;
 
 /// Connect to SMTP via STARTTLS.
 /// If this flag is set, automatic configuration is skipped.
@@ -166,9 +168,9 @@ pub const DC_LP_SMTP_SOCKET_SSL: usize = 0x20000;
 pub const DC_LP_SMTP_SOCKET_PLAIN: usize = 0x40000;
 
 /// if none of these flags are set, the default is chosen
-pub const DC_LP_AUTH_FLAGS: usize = (DC_LP_AUTH_OAUTH2 | DC_LP_AUTH_NORMAL);
+pub const DC_LP_AUTH_FLAGS: i32 = (DC_LP_AUTH_OAUTH2 | DC_LP_AUTH_NORMAL);
 /// if none of these flags are set, the default is chosen
-pub const DC_LP_IMAP_SOCKET_FLAGS: usize =
+pub const DC_LP_IMAP_SOCKET_FLAGS: i32 =
     (DC_LP_IMAP_SOCKET_STARTTLS | DC_LP_IMAP_SOCKET_SSL | DC_LP_IMAP_SOCKET_PLAIN);
 /// if none of these flags are set, the default is chosen
 pub const DC_LP_SMTP_SOCKET_FLAGS: usize =
@@ -180,10 +182,14 @@ pub const DC_VC_CONTACT_CONFIRM: i32 = 6;
 pub const DC_BOB_ERROR: i32 = 0;
 pub const DC_BOB_SUCCESS: i32 = 1;
 
+// max. width/height of an avatar
+pub const AVATAR_SIZE: u32 = 192;
+
 #[derive(Debug, Display, Clone, Copy, PartialEq, Eq, FromPrimitive, ToPrimitive, FromSql, ToSql)]
 #[repr(i32)]
 pub enum Viewtype {
     Unknown = 0,
+
     /// Text message.
     /// The text of the message is set using dc_msg_set_text()
     /// and retrieved with dc_msg_get_text().
@@ -200,6 +206,11 @@ pub enum Viewtype {
     /// and retrieved via dc_msg_get_file(), dc_msg_get_width(), dc_msg_get_height().
     Gif = 21,
 
+    /// Message containing a sticker, similar to image.
+    /// If possible, the ui should display the image without borders in a transparent way.
+    /// A click on a sticker will offer to install the sticker set in some future.
+    Sticker = 23,
+
     /// Message containing an Audio file.
     /// File and duration are set via dc_msg_set_file(), dc_msg_set_duration()
     /// and retrieved via dc_msg_get_file(), dc_msg_get_duration().
@@ -252,13 +263,8 @@ const DC_ERROR_SEE_STRING: usize = 0; // deprecated;
 const DC_ERROR_SELF_NOT_IN_GROUP: usize = 1; // deprecated;
 const DC_STR_SELFNOTINGRP: usize = 21; // deprecated;
 
-/// Values for dc_get|set_config("show_emails")
-const DC_SHOW_EMAILS_OFF: usize = 0;
-const DC_SHOW_EMAILS_ACCEPTED_CONTACTS: usize = 1;
-const DC_SHOW_EMAILS_ALL: usize = 2;
-
 // TODO: Strings need some doumentation about used placeholders.
-// These constants are used to request strings using #DC_EVENT_GET_STRING.
+// These constants are used to set stock translation strings
 
 const DC_STR_NOMESSAGES: usize = 1;
 const DC_STR_SELF: usize = 2;
@@ -304,7 +310,8 @@ const DC_STR_MSGACTIONBYME: usize = 63;
 const DC_STR_MSGLOCATIONENABLED: usize = 64;
 const DC_STR_MSGLOCATIONDISABLED: usize = 65;
 const DC_STR_LOCATION: usize = 66;
-const DC_STR_COUNT: usize = 66;
+const DC_STR_STICKER: usize = 67;
+const DC_STR_COUNT: usize = 67;
 
 pub const DC_JOB_DELETE_MSG_ON_IMAP: i32 = 110;
 

src/contact.rs

@@ -1,3 +1,5 @@
+//! Contacts module
+
 use std::path::PathBuf;
 
 use deltachat_derive::*;
@@ -5,16 +7,19 @@ use itertools::Itertools;
 use rusqlite;
 
 use crate::aheader::EncryptPreference;
+use crate::chat::ChatId;
 use crate::config::Config;
 use crate::constants::*;
 use crate::context::Context;
 use crate::dc_tools::*;
 use crate::e2ee;
-use crate::error::Result;
+use crate::error::{Error, Result};
 use crate::events::Event;
 use crate::key::*;
 use crate::login_param::LoginParam;
-use crate::message::MessageState;
+use crate::message::{MessageState, MsgId};
+use crate::mimeparser::AvatarAction;
+use crate::param::*;
 use crate::peerstate::*;
 use crate::sql;
 use crate::stock::StockMessage;
@@ -23,15 +28,17 @@ use crate::stock::StockMessage;
 const DC_ORIGIN_MIN_CONTACT_LIST: i32 = 0x100;
 
 /// An object representing a single contact in memory.
+///
 /// The contact object is not updated.
 /// If you want an update, you have to recreate the object.
 ///
 /// The library makes sure
 /// only to use names _authorized_ by the contact in `To:` or `Cc:`.
-/// _Given-names _as "Daddy" or "Honey" are not used there.
+/// *Given-names* as "Daddy" or "Honey" are not used there.
 /// For this purpose, internally, two names are tracked -
-/// authorized-name and given-name.
+/// authorized name and given name.
 /// By default, these names are equal, but functions working with contact names
+/// only affect the given name.
 #[derive(Debug)]
 pub struct Contact {
     /// The contact ID.
@@ -42,20 +49,28 @@ pub struct Contact {
     ///
     /// Normal contact IDs are larger than these special ones (larger than DC_CONTACT_ID_LAST_SPECIAL).
     pub id: u32,
+
     /// Contact name. It is recommended to use `Contact::get_name`,
     /// `Contact::get_display_name` or `Contact::get_name_n_addr` to access this field.
     /// May be empty, initially set to `authname`.
     name: String,
+
     /// Name authorized by the contact himself. Only this name may be spread to others,
-    /// e.g. in To:-lists. May be empty. It is recommended to use `Contact::get_name`,
-    /// `Contact::get_display_name` or `Contact::get_name_n_addr` to access this field.
+    /// e.g. in To:-lists. May be empty. It is recommended to use `Contact::get_authname`,
+    /// to access this field.
     authname: String,
+
     /// E-Mail-Address of the contact. It is recommended to use `Contact::get_addr`` to access this field.
     addr: String,
+
     /// Blocked state. Use dc_contact_is_blocked to access this field.
-    blocked: bool,
+    pub blocked: bool,
+
     /// The origin/source of the contact.
     pub origin: Origin,
+
+    /// Parameters as Param::ProfileImage
+    pub param: Params,
 }
 
 /// Possible origins of a contact.
@@ -65,38 +80,54 @@ pub struct Contact {
 #[repr(i32)]
 pub enum Origin {
     Unknown = 0,
+
     /// From: of incoming messages of unknown sender
     IncomingUnknownFrom = 0x10,
+
     /// Cc: of incoming messages of unknown sender
     IncomingUnknownCc = 0x20,
+
     /// To: of incoming messages of unknown sender
     IncomingUnknownTo = 0x40,
+
     /// address scanned but not verified
     UnhandledQrScan = 0x80,
+
     /// Reply-To: of incoming message of known sender
     IncomingReplyTo = 0x100,
+
     /// Cc: of incoming message of known sender
     IncomingCc = 0x200,
+
     /// additional To:'s of incoming message of known sender
     IncomingTo = 0x400,
+
     /// a chat was manually created for this user, but no message yet sent
     CreateChat = 0x800,
+
     /// message sent by us
     OutgoingBcc = 0x1000,
+
     /// message sent by us
     OutgoingCc = 0x2000,
+
     /// message sent by us
     OutgoingTo = 0x4000,
+
     /// internal use
     Internal = 0x40000,
+
     /// address is in our address book
     AdressBook = 0x80000,
+
     /// set on Alice's side for contacts like Bob that have scanned the QR code offered by her. Only means the contact has once been established using the "securejoin" procedure in the past, getting the current key verification status requires calling dc_contact_is_verified() !
-    SecurejoinInvited = 0x1000000,
+    SecurejoinInvited = 0x0100_0000,
+
     /// set on Bob's side for contacts scanned and verified from a QR code. Only means the contact has once been established using the "securejoin" procedure in the past, getting the current key verification status requires calling dc_contact_is_verified() !
-    SecurejoinJoined = 0x2000000,
-    /// contact added mannually by dc_create_contact(), this should be the largets origin as otherwise the user cannot modify the names
-    ManuallyCreated = 0x4000000,
+    SecurejoinJoined = 0x0200_0000,
+
+    /// contact added mannually by dc_create_contact(), this should be the largest origin as otherwise the user cannot modify the names
+    ManuallyCreated = 0x0400_0000,
 }
 
 impl Default for Origin {
@@ -106,19 +137,11 @@ impl Default for Origin {
 }
 
 impl Origin {
-    /// Contacts that start a new "normal" chat, defaults to off.
-    pub fn is_start_new_chat(self) -> bool {
-        self as i32 >= 0x7FFFFFFF
-    }
-
-    /// Contacts that are verified and known not to be spam.
-    pub fn is_verified(self) -> bool {
-        self as i32 >= 0x100
-    }
-
-    /// Contacts that are shown in the contact list.
-    pub fn include_in_contactlist(self) -> bool {
-        self as i32 >= DC_ORIGIN_MIN_CONTACT_LIST
+    /// Contacts that are known, i. e. they came in via accepted contacts or
+    /// themselves an accepted contact. Known contacts are shown in the
+    /// contact list when one creates a chat and wants to add members etc.
+    pub fn is_known(self) -> bool {
+        self >= Origin::IncomingReplyTo
     }
 }
 
@@ -141,24 +164,11 @@ pub enum VerifiedStatus {
 }
 
 impl Contact {
-    pub fn load_from_db(context: &Context, contact_id: u32) -> Result<Self> {
-        if contact_id == DC_CONTACT_ID_SELF {
-            let contact = Contact {
-                id: contact_id,
-                name: context.stock_str(StockMessage::SelfMsg).into(),
-                authname: "".into(),
-                addr: context
-                    .get_config(Config::ConfiguredAddr)
-                    .unwrap_or_default(),
-                blocked: false,
-                origin: Origin::Unknown,
-            };
-
-            return Ok(contact);
-        }
-
-        context.sql.query_row(
-            "SELECT c.name, c.addr, c.origin, c.blocked, c.authname  FROM contacts c  WHERE c.id=?;",
+    pub fn load_from_db(context: &Context, contact_id: u32) -> crate::sql::Result<Self> {
+        let mut res = context.sql.query_row(
+            "SELECT c.name, c.addr, c.origin, c.blocked, c.authname, c.param
+               FROM contacts c
+              WHERE c.id=?;",
             params![contact_id as i32],
             |row| {
                 let contact = Self {
@@ -168,10 +178,21 @@ impl Contact {
                     addr: row.get::<_, String>(1)?,
                     blocked: row.get::<_, Option<i32>>(3)?.unwrap_or_default() != 0,
                     origin: row.get(2)?,
+                    param: row.get::<_, String>(5)?.parse().unwrap_or_default(),
                 };
                 Ok(contact)
-            }
-        )
+            },
+        )?;
+        if contact_id == DC_CONTACT_ID_SELF {
+            res.name = context.stock_str(StockMessage::SelfMsg).to_string();
+            res.addr = context
+                .get_config(Config::ConfiguredAddr)
+                .unwrap_or_default();
+        } else if contact_id == DC_CONTACT_ID_DEVICE {
+            res.name = context.stock_str(StockMessage::DeviceMessages).to_string();
+            res.addr = DC_CONTACT_ID_DEVICE_ADDR.to_string();
+        }
+        Ok(res)
     }
 
     /// Returns `true` if this contact is blocked.
@@ -199,7 +220,7 @@ impl Contact {
     /// Add a single contact as a result of an _explicit_ user action.
     ///
     /// We assume, the contact name, if any, is entered by the user and is used "as is" therefore,
-    /// normalize() is _not_ called for the name. If the contact is blocked, it is unblocked.
+    /// normalize() is *not* called for the name. If the contact is blocked, it is unblocked.
     ///
     /// To add a number of contacts, see `dc_add_address_book()` which is much faster for adding
     /// a bunch of addresses.
@@ -229,7 +250,7 @@ impl Contact {
     }
 
     /// Mark all messages sent by the given contact
-    /// as _noticed_.  See also dc_marknoticed_chat() and dc_markseen_msgs()
+    /// as *noticed*.  See also dc_marknoticed_chat() and dc_markseen_msgs()
     ///
     /// Calling this function usually results in the event `#DC_EVENT_MSGS_CHANGED`.
     pub fn mark_noticed(context: &Context, id: u32) {
@@ -242,8 +263,8 @@ impl Contact {
         .is_ok()
         {
             context.call_cb(Event::MsgsChanged {
-                chat_id: 0,
-                msg_id: 0,
+                chat_id: ChatId::new(0),
+                msg_id: MsgId::new(0),
             });
         }
     }
@@ -263,8 +284,8 @@ impl Contact {
             .get_config(Config::ConfiguredAddr)
             .unwrap_or_default();
 
-        if addr_normalized == addr_self {
-            return 1;
+        if addr_cmp(addr_normalized, addr_self) {
+            return DC_CONTACT_ID_SELF;
         }
 
         context.sql.query_get_value(
@@ -300,8 +321,8 @@ impl Contact {
             .get_config(Config::ConfiguredAddr)
             .unwrap_or_default();
 
-        if addr == addr_self {
-            return Ok((1, sth_modified));
+        if addr_cmp(addr, addr_self) {
+            return Ok((DC_CONTACT_ID_SELF, sth_modified));
         }
 
         if !may_be_valid_addr(&addr) {
@@ -391,16 +412,26 @@ impl Contact {
                 sth_modified = Modifier::Modified;
             }
         } else {
+            if origin == Origin::IncomingUnknownFrom {
+                update_authname = true;
+            }
+
             if sql::execute(
                 context,
                 &context.sql,
-                "INSERT INTO contacts (name, addr, origin) VALUES(?, ?, ?);",
-                params![name.as_ref(), addr, origin,],
+                "INSERT INTO contacts (name, addr, origin, authname) VALUES(?, ?, ?, ?);",
+                params![
+                    name.as_ref(),
+                    addr,
+                    origin,
+                    if update_authname { name.as_ref() } else { "" }
+                ],
             )
             .is_ok()
             {
                 row_id = sql::get_rowid(context, &context.sql, "contacts", "addr", addr);
                 sth_modified = Modifier::Created;
+                info!(context, "added contact id={} addr={}", row_id, addr);
             } else {
                 error!(context, "Cannot add contact.");
             }
@@ -421,7 +452,7 @@ impl Contact {
     /// the event `DC_EVENT_CONTACTS_CHANGED` is sent.
     ///
     /// To add a single contact entered by the user, you should prefer `Contact::create`,
-    /// however, for adding a bunch of addresses, this function is _much_ faster.
+    /// however, for adding a bunch of addresses, this function is much faster.
     ///
     /// The `addr_book` is a multiline string in the format `Name one\nAddress one\nName two\nAddress two`.
     ///
@@ -487,7 +518,7 @@ impl Contact {
                 params![
                     self_addr,
                     DC_CONTACT_ID_LAST_SPECIAL as i32,
-                    0x100,
+                    Origin::IncomingReplyTo,
                     &s3str_like_cmd,
                     &s3str_like_cmd,
                     if flag_verified_only { 0 } else { 1 },
@@ -578,7 +609,12 @@ impl Contact {
 
             let mut self_key = Key::from_self_public(context, &loginparam.addr, &context.sql);
 
-            if peerstate.is_some() && peerstate.as_ref().and_then(|p| p.peek_key(0)).is_some() {
+            if peerstate.is_some()
+                && peerstate
+                    .as_ref()
+                    .and_then(|p| p.peek_key(PeerstateVerifiedStatus::Unverified))
+                    .is_some()
+            {
                 let peerstate = peerstate.as_ref().unwrap();
                 let p =
                     context.stock_str(if peerstate.prefer_encrypt == EncryptPreference::Mutual {
@@ -598,25 +634,25 @@ impl Contact {
                     .map(|k| k.formatted_fingerprint())
                     .unwrap_or_default();
                 let fingerprint_other_verified = peerstate
-                    .peek_key(2)
+                    .peek_key(PeerstateVerifiedStatus::BidirectVerified)
                     .map(|k| k.formatted_fingerprint())
                     .unwrap_or_default();
                 let fingerprint_other_unverified = peerstate
-                    .peek_key(0)
+                    .peek_key(PeerstateVerifiedStatus::Unverified)
                     .map(|k| k.formatted_fingerprint())
                     .unwrap_or_default();
-                if peerstate.addr.is_some() && &loginparam.addr < peerstate.addr.as_ref().unwrap() {
+                if loginparam.addr < peerstate.addr {
                     cat_fingerprint(&mut ret, &loginparam.addr, &fingerprint_self, "");
                     cat_fingerprint(
                         &mut ret,
-                        peerstate.addr.as_ref().unwrap(),
+                        peerstate.addr.clone(),
                         &fingerprint_other_verified,
                         &fingerprint_other_unverified,
                     );
                 } else {
                     cat_fingerprint(
                         &mut ret,
-                        peerstate.addr.as_ref().unwrap(),
+                        peerstate.addr.clone(),
                         &fingerprint_other_verified,
                         &fingerprint_other_unverified,
                     );
@@ -679,7 +715,7 @@ impl Contact {
                 }
                 Err(err) => {
                     error!(context, "delete_contact {} failed ({})", contact_id, err);
-                    return Err(err);
+                    return Err(err.into());
                 }
             }
         }
@@ -697,7 +733,17 @@ impl Contact {
     /// like "Me" in the selected language and the email address
     /// defined by dc_set_config().
     pub fn get_by_id(context: &Context, contact_id: u32) -> Result<Contact> {
-        Contact::load_from_db(context, contact_id)
+        Ok(Contact::load_from_db(context, contact_id)?)
+    }
+
+    pub fn update_param(&mut self, context: &Context) -> Result<()> {
+        sql::execute(
+            context,
+            &context.sql,
+            "UPDATE contacts SET param=? WHERE id=?",
+            params![self.param.to_string(), self.id as i32],
+        )?;
+        Ok(())
     }
 
     /// Get the ID of the contact.
@@ -710,6 +756,7 @@ impl Contact {
         &self.addr
     }
 
+    /// Get name authorized by the contact.
     pub fn get_authname(&self) -> &str {
         &self.authname
     }
@@ -732,6 +779,9 @@ impl Contact {
         if !self.name.is_empty() {
             return &self.name;
         }
+        if !self.authname.is_empty() {
+            return &self.authname;
+        }
         &self.addr
     }
 
@@ -767,8 +817,11 @@ impl Contact {
             if let Some(p) = context.get_config(Config::Selfavatar) {
                 return Some(PathBuf::from(p));
             }
+        } else if let Some(image_rel) = self.param.get(Param::ProfileImage) {
+            if !image_rel.is_empty() {
+                return Some(dc_get_abs_path(context, image_rel));
+            }
         }
-        // TODO: else get image_abs from contact param
         None
     }
 
@@ -804,14 +857,14 @@ impl Contact {
         }
 
         if let Some(peerstate) = peerstate {
-            if peerstate.verified_key().is_some() {
+            if peerstate.verified_key.is_some() {
                 return VerifiedStatus::BidirectVerified;
             }
         }
 
         let peerstate = Peerstate::from_addr(context, &context.sql, &self.addr);
         if let Some(ps) = peerstate {
-            if ps.verified_key().is_some() {
+            if ps.verified_key.is_some() {
                 return VerifiedStatus::BidirectVerified;
             }
         }
@@ -827,7 +880,7 @@ impl Contact {
         if let Ok(contact) = Contact::load_from_db(context, contact_id) {
             if !contact.addr.is_empty() {
                 let normalized_addr = addr_normalize(addr.as_ref());
-                if &contact.addr == &normalized_addr {
+                if contact.addr == normalized_addr {
                     return true;
                 }
             }
@@ -851,24 +904,8 @@ impl Contact {
             .unwrap_or_default() as usize
     }
 
-    pub fn get_origin_by_id(context: &Context, contact_id: u32, ret_blocked: &mut i32) -> Origin {
-        let mut ret = Origin::Unknown;
-        *ret_blocked = 0;
-
-        if let Ok(contact) = Contact::load_from_db(context, contact_id) {
-            /* we could optimize this by loading only the needed fields */
-            if contact.blocked {
-                *ret_blocked = 1;
-            } else {
-                ret = contact.origin;
-            }
-        }
-
-        ret
-    }
-
     pub fn real_exists_by_id(context: &Context, contact_id: u32) -> bool {
-        if !context.sql.is_open() || contact_id <= 9 {
+        if !context.sql.is_open() || contact_id <= DC_CONTACT_ID_LAST_SPECIAL {
             return false;
         }
 
@@ -892,7 +929,8 @@ impl Contact {
     }
 }
 
-fn get_first_name<'a>(full_name: &'a str) -> &'a str {
+/// Extracts first name from full name.
+fn get_first_name(full_name: &str) -> &str {
     full_name.splitn(2, ' ').next().unwrap_or_default()
 }
 
@@ -902,6 +940,7 @@ pub fn may_be_valid_addr(addr: &str) -> bool {
     res.is_ok()
 }
 
+/// Returns address with whitespace trimmed and `mailto:` prefix removed.
 pub fn addr_normalize(addr: &str) -> &str {
     let norm = addr.trim();
 
@@ -913,26 +952,26 @@ pub fn addr_normalize(addr: &str) -> &str {
 }
 
 fn set_block_contact(context: &Context, contact_id: u32, new_blocking: bool) {
-    if contact_id <= 9 {
+    if contact_id <= DC_CONTACT_ID_LAST_SPECIAL {
         return;
     }
 
     if let Ok(contact) = Contact::load_from_db(context, contact_id) {
-        if contact.blocked != new_blocking {
-            if sql::execute(
+        if contact.blocked != new_blocking
+            && sql::execute(
                 context,
                 &context.sql,
                 "UPDATE contacts SET blocked=? WHERE id=?;",
                 params![new_blocking as i32, contact_id as i32],
             )
             .is_ok()
-            {
-                // also (un)block all chats with _only_ this contact - we do not delete them to allow a
-                // non-destructive blocking->unblocking.
-                // (Maybe, beside normal chats (type=100) we should also block group chats with only this user.
-                // However, I'm not sure about this point; it may be confusing if the user wants to add other people;
-                // this would result in recreating the same group...)
-                if sql::execute(
+        {
+            // also (un)block all chats with _only_ this contact - we do not delete them to allow a
+            // non-destructive blocking->unblocking.
+            // (Maybe, beside normal chats (type=100) we should also block group chats with only this user.
+            // However, I'm not sure about this point; it may be confusing if the user wants to add other people;
+            // this would result in recreating the same group...)
+            if sql::execute(
                     context,
                     &context.sql,
                     "UPDATE chats SET blocked=? WHERE type=? AND id IN (SELECT chat_id FROM chats_contacts WHERE contact_id=?);",
@@ -941,11 +980,36 @@ fn set_block_contact(context: &Context, contact_id: u32, new_blocking: bool) {
                     Contact::mark_noticed(context, contact_id);
                     context.call_cb(Event::ContactsChanged(None));
                 }
-            }
         }
     }
 }
 
+pub fn set_profile_image(
+    context: &Context,
+    contact_id: u32,
+    profile_image: &AvatarAction,
+) -> Result<()> {
+    // the given profile image is expected to be already in the blob directory
+    // as profile images can be set only by receiving messages, this should be always the case, however.
+    let mut contact = Contact::load_from_db(context, contact_id)?;
+    let changed = match profile_image {
+        AvatarAction::Change(profile_image) => {
+            contact.param.set(Param::ProfileImage, profile_image);
+            true
+        }
+        AvatarAction::Delete => {
+            contact.param.remove(Param::ProfileImage);
+            true
+        }
+        AvatarAction::None => false,
+    };
+    if changed {
+        contact.update_param(context)?;
+        context.call_cb(Event::ContactsChanged(Some(contact_id)));
+    }
+    Ok(())
+}
+
 /// Normalize a name.
 ///
 /// - Remove quotes (come from some bad MUA implementations)
@@ -963,9 +1027,9 @@ pub fn normalize_name(full_name: impl AsRef<str>) -> String {
     if len > 0 {
         let firstchar = full_name.as_bytes()[0];
         let lastchar = full_name.as_bytes()[len - 1];
-        if firstchar == '\'' as u8 && lastchar == '\'' as u8
-            || firstchar == '\"' as u8 && lastchar == '\"' as u8
-            || firstchar == '<' as u8 && lastchar == '>' as u8
+        if firstchar == b'\'' && lastchar == b'\''
+            || firstchar == b'\"' && lastchar == b'\"'
+            || firstchar == b'<' && lastchar == b'>'
         {
             full_name = &full_name[1..len - 1];
         }
@@ -1010,21 +1074,23 @@ fn cat_fingerprint(
     }
 }
 
-pub fn addr_cmp(addr1: impl AsRef<str>, addr2: impl AsRef<str>) -> bool {
-    let norm1 = addr_normalize(addr1.as_ref());
-    let norm2 = addr_normalize(addr2.as_ref());
+impl Context {
+    /// determine whether the specified addr maps to the/a self addr
+    pub fn is_self_addr(&self, addr: &str) -> Result<bool> {
+        let self_addr = match self.get_config(Config::ConfiguredAddr) {
+            Some(s) => s,
+            None => return Err(Error::NotConfigured),
+        };
 
-    norm1 == norm2
+        Ok(addr_cmp(self_addr, addr))
+    }
 }
 
-pub fn addr_equals_self(context: &Context, addr: impl AsRef<str>) -> bool {
-    if !addr.as_ref().is_empty() {
-        let normalized_addr = addr_normalize(addr.as_ref());
-        if let Some(self_addr) = context.get_config(Config::ConfiguredAddr) {
-            return normalized_addr == self_addr;
-        }
-    }
-    false
+pub fn addr_cmp(addr1: impl AsRef<str>, addr2: impl AsRef<str>) -> bool {
+    let norm1 = addr_normalize(addr1.as_ref()).to_lowercase();
+    let norm2 = addr_normalize(addr2.as_ref()).to_lowercase();
+
+    norm1 == norm2
 }
 
 fn split_address_book(book: &str) -> Vec<(&str, &str)> {
@@ -1046,6 +1112,8 @@ fn split_address_book(book: &str) -> Vec<(&str, &str)> {
 mod tests {
     use super::*;
 
+    use crate::test_utils::*;
+
     #[test]
     fn test_may_be_valid_addr() {
         assert_eq!(may_be_valid_addr(""), false);
@@ -1071,6 +1139,10 @@ mod tests {
     fn test_normalize_addr() {
         assert_eq!(addr_normalize("mailto:john@doe.com"), "john@doe.com");
         assert_eq!(addr_normalize("  hello@world.com   "), "hello@world.com");
+
+        // normalisation preserves case to allow user-defined spelling.
+        // however, case is ignored on addr_cmp()
+        assert_ne!(addr_normalize("John@Doe.com"), "john@doe.com");
     }
 
     #[test]
@@ -1087,4 +1159,185 @@ mod tests {
             vec![("Name one", "Address one"), ("Name two", "Address two")]
         )
     }
+
+    #[test]
+    fn test_get_contacts() {
+        let context = dummy_context();
+        let contacts = Contact::get_all(&context.ctx, 0, Some("some2")).unwrap();
+        assert_eq!(contacts.len(), 0);
+
+        let id = Contact::create(&context.ctx, "bob", "bob@mail.de").unwrap();
+        assert_ne!(id, 0);
+
+        let contacts = Contact::get_all(&context.ctx, 0, Some("bob")).unwrap();
+        assert_eq!(contacts.len(), 1);
+
+        let contacts = Contact::get_all(&context.ctx, 0, Some("alice")).unwrap();
+        assert_eq!(contacts.len(), 0);
+    }
+
+    #[test]
+    fn test_is_self_addr() -> Result<()> {
+        let t = test_context(None);
+        assert!(t.ctx.is_self_addr("me@me.org").is_err());
+
+        let addr = configure_alice_keypair(&t.ctx);
+        assert_eq!(t.ctx.is_self_addr("me@me.org")?, false);
+        assert_eq!(t.ctx.is_self_addr(&addr)?, true);
+
+        Ok(())
+    }
+
+    #[test]
+    fn test_add_or_lookup() {
+        // add some contacts, this also tests add_address_book()
+        let t = dummy_context();
+        let book = concat!(
+            "  Name one  \n one@eins.org \n",
+            "Name two\ntwo@deux.net\n",
+            "\nthree@drei.sam\n",
+            "Name two\ntwo@deux.net\n" // should not be added again
+        );
+        assert_eq!(Contact::add_address_book(&t.ctx, book).unwrap(), 3);
+
+        // check first added contact, this does not modify because of lower origin
+        let (contact_id, sth_modified) =
+            Contact::add_or_lookup(&t.ctx, "bla foo", "one@eins.org", Origin::IncomingUnknownTo)
+                .unwrap();
+        assert!(contact_id > DC_CONTACT_ID_LAST_SPECIAL);
+        assert_eq!(sth_modified, Modifier::None);
+        let contact = Contact::load_from_db(&t.ctx, contact_id).unwrap();
+        assert_eq!(contact.get_id(), contact_id);
+        assert_eq!(contact.get_name(), "Name one");
+        assert_eq!(contact.get_display_name(), "Name one");
+        assert_eq!(contact.get_addr(), "one@eins.org");
+        assert_eq!(contact.get_name_n_addr(), "Name one (one@eins.org)");
+
+        // modify first added contact
+        let (contact_id_test, sth_modified) = Contact::add_or_lookup(
+            &t.ctx,
+            "Real one",
+            " one@eins.org  ",
+            Origin::ManuallyCreated,
+        )
+        .unwrap();
+        assert_eq!(contact_id, contact_id_test);
+        assert_eq!(sth_modified, Modifier::Modified);
+        let contact = Contact::load_from_db(&t.ctx, contact_id).unwrap();
+        assert_eq!(contact.get_name(), "Real one");
+        assert_eq!(contact.get_addr(), "one@eins.org");
+        assert!(!contact.is_blocked());
+
+        // check third added contact (contact without name)
+        let (contact_id, sth_modified) =
+            Contact::add_or_lookup(&t.ctx, "", "three@drei.sam", Origin::IncomingUnknownTo)
+                .unwrap();
+        assert!(contact_id > DC_CONTACT_ID_LAST_SPECIAL);
+        assert_eq!(sth_modified, Modifier::None);
+        let contact = Contact::load_from_db(&t.ctx, contact_id).unwrap();
+        assert_eq!(contact.get_name(), "");
+        assert_eq!(contact.get_display_name(), "three@drei.sam");
+        assert_eq!(contact.get_addr(), "three@drei.sam");
+        assert_eq!(contact.get_name_n_addr(), "three@drei.sam");
+
+        // add name to third contact from incoming message (this becomes authorized name)
+        let (contact_id_test, sth_modified) = Contact::add_or_lookup(
+            &t.ctx,
+            "m. serious",
+            "three@drei.sam",
+            Origin::IncomingUnknownFrom,
+        )
+        .unwrap();
+        assert_eq!(contact_id, contact_id_test);
+        assert_eq!(sth_modified, Modifier::Modified);
+        let contact = Contact::load_from_db(&t.ctx, contact_id).unwrap();
+        assert_eq!(contact.get_name_n_addr(), "m. serious (three@drei.sam)");
+        assert!(!contact.is_blocked());
+
+        // manually edit name of third contact (does not changed authorized name)
+        let (contact_id_test, sth_modified) = Contact::add_or_lookup(
+            &t.ctx,
+            "schnucki",
+            "three@drei.sam",
+            Origin::ManuallyCreated,
+        )
+        .unwrap();
+        assert_eq!(contact_id, contact_id_test);
+        assert_eq!(sth_modified, Modifier::Modified);
+        let contact = Contact::load_from_db(&t.ctx, contact_id).unwrap();
+        assert_eq!(contact.get_authname(), "m. serious");
+        assert_eq!(contact.get_name_n_addr(), "schnucki (three@drei.sam)");
+        assert!(!contact.is_blocked());
+
+        // check SELF
+        let contact = Contact::load_from_db(&t.ctx, DC_CONTACT_ID_SELF).unwrap();
+        assert_eq!(DC_CONTACT_ID_SELF, 1);
+        assert_eq!(contact.get_name(), t.ctx.stock_str(StockMessage::SelfMsg));
+        assert_eq!(contact.get_addr(), ""); // we're not configured
+        assert!(!contact.is_blocked());
+    }
+
+    #[test]
+    fn test_remote_authnames() {
+        let t = dummy_context();
+
+        let (contact_id, sth_modified) = Contact::add_or_lookup(
+            &t.ctx,
+            "bob1",
+            "bob@example.org",
+            Origin::IncomingUnknownFrom,
+        )
+        .unwrap();
+        assert!(contact_id > DC_CONTACT_ID_LAST_SPECIAL);
+        assert_eq!(sth_modified, Modifier::Created);
+        let contact = Contact::load_from_db(&t.ctx, contact_id).unwrap();
+        assert_eq!(contact.get_authname(), "bob1");
+        assert_eq!(contact.get_name(), "bob1");
+        assert_eq!(contact.get_display_name(), "bob1");
+
+        let (contact_id, sth_modified) = Contact::add_or_lookup(
+            &t.ctx,
+            "bob2",
+            "bob@example.org",
+            Origin::IncomingUnknownFrom,
+        )
+        .unwrap();
+        assert!(contact_id > DC_CONTACT_ID_LAST_SPECIAL);
+        assert_eq!(sth_modified, Modifier::Modified);
+        let contact = Contact::load_from_db(&t.ctx, contact_id).unwrap();
+        assert_eq!(contact.get_authname(), "bob2");
+        assert_eq!(contact.get_name(), "bob2");
+        assert_eq!(contact.get_display_name(), "bob2");
+
+        let (contact_id, sth_modified) =
+            Contact::add_or_lookup(&t.ctx, "bob3", "bob@example.org", Origin::ManuallyCreated)
+                .unwrap();
+        assert!(contact_id > DC_CONTACT_ID_LAST_SPECIAL);
+        assert_eq!(sth_modified, Modifier::Modified);
+        let contact = Contact::load_from_db(&t.ctx, contact_id).unwrap();
+        assert_eq!(contact.get_authname(), "bob2");
+        assert_eq!(contact.get_name(), "bob3");
+        assert_eq!(contact.get_display_name(), "bob3");
+
+        let (contact_id, sth_modified) = Contact::add_or_lookup(
+            &t.ctx,
+            "bob4",
+            "bob@example.org",
+            Origin::IncomingUnknownFrom,
+        )
+        .unwrap();
+        assert!(contact_id > DC_CONTACT_ID_LAST_SPECIAL);
+        assert_eq!(sth_modified, Modifier::Modified);
+        let contact = Contact::load_from_db(&t.ctx, contact_id).unwrap();
+        assert_eq!(contact.get_authname(), "bob4");
+        assert_eq!(contact.get_name(), "bob3");
+        assert_eq!(contact.get_display_name(), "bob3");
+    }
+
+    #[test]
+    fn test_addr_cmp() {
+        assert!(addr_cmp("AA@AA.ORG", "aa@aa.ORG"));
+        assert!(addr_cmp(" aa@aa.ORG ", "AA@AA.ORG"));
+        assert!(addr_cmp(" mailto:AA@AA.ORG", "Aa@Aa.orG"));
+    }
 }

src/context.rs

@@ -1,11 +1,12 @@
+//! Context module
+
 use std::collections::HashMap;
 use std::ffi::OsString;
 use std::path::{Path, PathBuf};
 use std::sync::{Arc, Condvar, Mutex, RwLock};
 
-use libc::uintptr_t;
-
 use crate::chat::*;
+use crate::config::Config;
 use crate::constants::*;
 use crate::contact::*;
 use crate::error::*;
@@ -16,9 +17,9 @@ use crate::job_thread::JobThread;
 use crate::key::*;
 use crate::login_param::LoginParam;
 use crate::lot::Lot;
-use crate::message::*;
+use crate::message::{self, Message, MessengerMessage, MsgId};
 use crate::param::Params;
-use crate::smtp::*;
+use crate::smtp::Smtp;
 use crate::sql::Sql;
 
 /// Callback function type for [Context]
@@ -29,21 +30,18 @@ use crate::sql::Sql;
 /// * `event` - One of the [Event] items.
 /// * `data1` - Depends on the event parameter, see [Event].
 /// * `data2` - Depends on the event parameter, see [Event].
-///
-/// # Returns
-///
-/// This callback must return 0 unless stated otherwise in the event
-/// description at [Event].
-pub type ContextCallback = dyn Fn(&Context, Event) -> uintptr_t + Send + Sync;
+pub type ContextCallback = dyn Fn(&Context, Event) -> () + Send + Sync;
 
 #[derive(DebugStub)]
 pub struct Context {
+    /// Database file path
     dbfile: PathBuf,
+    /// Blob directory path
     blobdir: PathBuf,
     pub sql: Sql,
-    pub inbox: Arc<RwLock<Imap>>,
     pub perform_inbox_jobs_needed: Arc<RwLock<bool>>,
     pub probe_imap_network: Arc<RwLock<bool>>,
+    pub inbox_thread: Arc<RwLock<JobThread>>,
     pub sentbox_thread: Arc<RwLock<JobThread>>,
     pub mvbox_thread: Arc<RwLock<JobThread>>,
     pub smtp: Arc<Mutex<Smtp>>,
@@ -52,21 +50,38 @@ pub struct Context {
     #[debug_stub = "Callback"]
     cb: Box<ContextCallback>,
     pub os_name: Option<String>,
-    pub cmdline_sel_chat_id: Arc<RwLock<u32>>,
+    pub cmdline_sel_chat_id: Arc<RwLock<ChatId>>,
     pub bob: Arc<RwLock<BobStatus>>,
-    pub last_smeared_timestamp: Arc<RwLock<i64>>,
+    pub last_smeared_timestamp: RwLock<i64>,
     pub running_state: Arc<RwLock<RunningState>>,
     /// Mutex to avoid generating the key for the user more than once.
     pub generating_key_mutex: Mutex<()>,
+    pub translated_stockstrings: RwLock<HashMap<usize, String>>,
 }
 
 #[derive(Debug, PartialEq, Eq)]
 pub struct RunningState {
     pub ongoing_running: bool,
-    pub shall_stop_ongoing: bool,
+    shall_stop_ongoing: bool,
+}
+
+/// Return some info about deltachat-core
+///
+/// This contains information mostly about the library itself, the
+/// actual keys and their values which will be present are not
+/// guaranteed.  Calling [Context::get_info] also includes information
+/// about the context on top of the information here.
+pub fn get_info() -> HashMap<&'static str, String> {
+    let mut res = HashMap::new();
+    res.insert("deltachat_core_version", format!("v{}", &*DC_VERSION_STR));
+    res.insert("sqlite_version", rusqlite::version().to_string());
+    res.insert("arch", (std::mem::size_of::<usize>() * 8).to_string());
+    res.insert("level", "awesome".into());
+    res
 }
 
 impl Context {
+    /// Creates new context.
     pub fn new(cb: Box<ContextCallback>, os_name: String, dbfile: PathBuf) -> Result<Context> {
         let mut blob_fname = OsString::new();
         blob_fname.push(dbfile.file_name().unwrap_or_default());
@@ -92,7 +107,6 @@ impl Context {
         let ctx = Context {
             blobdir,
             dbfile,
-            inbox: Arc::new(RwLock::new(Imap::new())),
             cb,
             os_name: Some(os_name),
             running_state: Arc::new(RwLock::new(Default::default())),
@@ -101,8 +115,13 @@ impl Context {
             smtp_state: Arc::new((Mutex::new(Default::default()), Condvar::new())),
             oauth2_critical: Arc::new(Mutex::new(())),
             bob: Arc::new(RwLock::new(Default::default())),
-            last_smeared_timestamp: Arc::new(RwLock::new(0)),
-            cmdline_sel_chat_id: Arc::new(RwLock::new(0)),
+            last_smeared_timestamp: RwLock::new(0),
+            cmdline_sel_chat_id: Arc::new(RwLock::new(ChatId::new(0))),
+            inbox_thread: Arc::new(RwLock::new(JobThread::new(
+                "INBOX",
+                "configured_inbox_folder",
+                Imap::new(),
+            ))),
             sentbox_thread: Arc::new(RwLock::new(JobThread::new(
                 "SENTBOX",
                 "configured_sentbox_folder",
@@ -116,53 +135,109 @@ impl Context {
             probe_imap_network: Arc::new(RwLock::new(false)),
             perform_inbox_jobs_needed: Arc::new(RwLock::new(false)),
             generating_key_mutex: Mutex::new(()),
+            translated_stockstrings: RwLock::new(HashMap::new()),
         };
 
         ensure!(
-            ctx.sql.open(&ctx, &ctx.dbfile, 0),
+            ctx.sql.open(&ctx, &ctx.dbfile, false),
             "Failed opening sqlite database"
         );
 
         Ok(ctx)
     }
 
+    /// Returns database file path.
     pub fn get_dbfile(&self) -> &Path {
         self.dbfile.as_path()
     }
 
+    /// Returns blob directory path.
     pub fn get_blobdir(&self) -> &Path {
         self.blobdir.as_path()
     }
 
-    pub fn call_cb(&self, event: Event) -> uintptr_t {
-        (*self.cb)(self, event)
+    pub fn call_cb(&self, event: Event) {
+        (*self.cb)(self, event);
     }
 
+    /*******************************************************************************
+     * Ongoing process allocation/free/check
+     ******************************************************************************/
+
+    pub fn alloc_ongoing(&self) -> bool {
+        if self.has_ongoing() {
+            warn!(self, "There is already another ongoing process running.",);
+
+            false
+        } else {
+            let s_a = self.running_state.clone();
+            let mut s = s_a.write().unwrap();
+
+            s.ongoing_running = true;
+            s.shall_stop_ongoing = false;
+
+            true
+        }
+    }
+
+    pub fn free_ongoing(&self) {
+        let s_a = self.running_state.clone();
+        let mut s = s_a.write().unwrap();
+
+        s.ongoing_running = false;
+        s.shall_stop_ongoing = true;
+    }
+
+    pub fn has_ongoing(&self) -> bool {
+        let s_a = self.running_state.clone();
+        let s = s_a.read().unwrap();
+
+        s.ongoing_running || !s.shall_stop_ongoing
+    }
+
+    /// Signal an ongoing process to stop.
+    pub fn stop_ongoing(&self) {
+        let s_a = self.running_state.clone();
+        let mut s = s_a.write().unwrap();
+
+        if s.ongoing_running && !s.shall_stop_ongoing {
+            info!(self, "Signaling the ongoing process to stop ASAP.",);
+            s.shall_stop_ongoing = true;
+        } else {
+            info!(self, "No ongoing process to stop.",);
+        };
+    }
+
+    pub fn shall_stop_ongoing(&self) -> bool {
+        self.running_state
+            .clone()
+            .read()
+            .unwrap()
+            .shall_stop_ongoing
+    }
+
+    /*******************************************************************************
+     * UI chat/message related API
+     ******************************************************************************/
+
     pub fn get_info(&self) -> HashMap<&'static str, String> {
         let unset = "0";
         let l = LoginParam::from_database(self, "");
         let l2 = LoginParam::from_database(self, "configured_");
-        let displayname = self.sql.get_config(self, "displayname");
+        let displayname = self.get_config(Config::Displayname);
         let chats = get_chat_cnt(self) as usize;
-        let real_msgs = dc_get_real_msg_cnt(self) as usize;
-        let deaddrop_msgs = dc_get_deaddrop_msg_cnt(self) as usize;
+        let real_msgs = message::get_real_msg_cnt(self) as usize;
+        let deaddrop_msgs = message::get_deaddrop_msg_cnt(self) as usize;
         let contacts = Contact::get_real_cnt(self) as usize;
-        let is_configured = self
-            .sql
-            .get_config_int(self, "configured")
-            .unwrap_or_default();
+        let is_configured = self.get_config_int(Config::Configured);
         let dbversion = self
             .sql
-            .get_config_int(self, "dbversion")
+            .get_raw_config_int(self, "dbversion")
             .unwrap_or_default();
-        let e2ee_enabled = self
-            .sql
-            .get_config_int(self, "e2ee_enabled")
-            .unwrap_or_else(|| 1);
-        let mdns_enabled = self
-            .sql
-            .get_config_int(self, "mdns_enabled")
-            .unwrap_or_else(|| 1);
+
+        let e2ee_enabled = self.get_config_int(Config::E2eeEnabled);
+        let mdns_enabled = self.get_config_int(Config::MdnsEnabled);
+        let bcc_self = self.get_config_int(Config::BccSelf);
 
         let prv_key_cnt: Option<isize> =
             self.sql
@@ -180,48 +255,25 @@ impl Context {
             "<Not yet calculated>".into()
         };
 
-        let inbox_watch = self
-            .sql
-            .get_config_int(self, "inbox_watch")
-            .unwrap_or_else(|| 1);
-        let sentbox_watch = self
-            .sql
-            .get_config_int(self, "sentbox_watch")
-            .unwrap_or_else(|| 1);
-        let mvbox_watch = self
-            .sql
-            .get_config_int(self, "mvbox_watch")
-            .unwrap_or_else(|| 1);
-        let mvbox_move = self
-            .sql
-            .get_config_int(self, "mvbox_move")
-            .unwrap_or_else(|| 1);
+        let inbox_watch = self.get_config_int(Config::InboxWatch);
+        let sentbox_watch = self.get_config_int(Config::SentboxWatch);
+        let mvbox_watch = self.get_config_int(Config::MvboxWatch);
+        let mvbox_move = self.get_config_int(Config::MvboxMove);
         let folders_configured = self
             .sql
-            .get_config_int(self, "folders_configured")
+            .get_raw_config_int(self, "folders_configured")
             .unwrap_or_default();
+
         let configured_sentbox_folder = self
             .sql
-            .get_config(self, "configured_sentbox_folder")
+            .get_raw_config(self, "configured_sentbox_folder")
             .unwrap_or_else(|| "<unset>".to_string());
         let configured_mvbox_folder = self
             .sql
-            .get_config(self, "configured_mvbox_folder")
+            .get_raw_config(self, "configured_mvbox_folder")
             .unwrap_or_else(|| "<unset>".to_string());
 
-        let mut res = HashMap::new();
-        res.insert("deltachat_core_version", format!("v{}", &*DC_VERSION_STR));
-        res.insert("sqlite_version", rusqlite::version().to_string());
-        res.insert(
-            "sqlite_thread_safe",
-            unsafe { rusqlite::ffi::sqlite3_threadsafe() }.to_string(),
-        );
-        res.insert(
-            "arch",
-            (::std::mem::size_of::<*mut libc::c_void>())
-                .wrapping_mul(8)
-                .to_string(),
-        );
+        let mut res = get_info();
         res.insert("number_of_chats", chats.to_string());
         res.insert("number_of_chat_messages", real_msgs.to_string());
         res.insert("messages_in_contact_requests", deaddrop_msgs.to_string());
@@ -230,6 +282,11 @@ impl Context {
         res.insert("database_version", dbversion.to_string());
         res.insert("blobdir", self.get_blobdir().display().to_string());
         res.insert("display_name", displayname.unwrap_or_else(|| unset.into()));
+        res.insert(
+            "selfavatar",
+            self.get_config(Config::Selfavatar)
+                .unwrap_or_else(|| "<unset>".to_string()),
+        );
         res.insert("is_configured", is_configured.to_string());
         res.insert("entered_account_settings", l.to_string());
         res.insert("used_account_settings", l2.to_string());
@@ -242,6 +299,7 @@ impl Context {
         res.insert("configured_mvbox_folder", configured_mvbox_folder);
         res.insert("mdns_enabled", mdns_enabled.to_string());
         res.insert("e2ee_enabled", e2ee_enabled.to_string());
+        res.insert("bcc_self", bcc_self.to_string());
         res.insert(
             "private_key_count",
             prv_key_cnt.unwrap_or_default().to_string(),
@@ -251,38 +309,43 @@ impl Context {
             pub_key_cnt.unwrap_or_default().to_string(),
         );
         res.insert("fingerprint", fingerprint_str);
-        res.insert("level", "awesome".into());
 
         res
     }
 
-    pub fn get_fresh_msgs(&self) -> Vec<u32> {
+    pub fn get_fresh_msgs(&self) -> Vec<MsgId> {
         let show_deaddrop = 0;
-
         self.sql
             .query_map(
-                "SELECT m.id FROM msgs m LEFT JOIN contacts ct \
-                 ON m.from_id=ct.id LEFT JOIN chats c ON m.chat_id=c.id WHERE m.state=?   \
-                 AND m.hidden=0   \
-                 AND m.chat_id>?   \
-                 AND ct.blocked=0   \
-                 AND (c.blocked=0 OR c.blocked=?) ORDER BY m.timestamp DESC,m.id DESC;",
+                concat!(
+                    "SELECT m.id",
+                    " FROM msgs m",
+                    " LEFT JOIN contacts ct",
+                    "        ON m.from_id=ct.id",
+                    " LEFT JOIN chats c",
+                    "        ON m.chat_id=c.id",
+                    " WHERE m.state=?",
+                    "   AND m.hidden=0",
+                    "   AND m.chat_id>?",
+                    "   AND ct.blocked=0",
+                    "   AND (c.blocked=0 OR c.blocked=?)",
+                    " ORDER BY m.timestamp DESC,m.id DESC;"
+                ),
                 &[10, 9, if 0 != show_deaddrop { 2 } else { 0 }],
-                |row| row.get(0),
+                |row| row.get::<_, MsgId>(0),
                 |rows| {
                     let mut ret = Vec::new();
                     for row in rows {
-                        let id: u32 = row?;
-                        ret.push(id);
+                        ret.push(row?);
                     }
                     Ok(ret)
                 },
             )
-            .unwrap()
+            .unwrap_or_default()
     }
 
     #[allow(non_snake_case)]
-    pub fn search_msgs(&self, chat_id: u32, query: impl AsRef<str>) -> Vec<u32> {
+    pub fn search_msgs(&self, chat_id: ChatId, query: impl AsRef<str>) -> Vec<MsgId> {
         let real_query = query.as_ref().trim();
         if real_query.is_empty() {
             return Vec::new();
@@ -290,26 +353,44 @@ impl Context {
         let strLikeInText = format!("%{}%", real_query);
         let strLikeBeg = format!("{}%", real_query);
 
-        let query = if 0 != chat_id {
-            "SELECT m.id, m.timestamp FROM msgs m LEFT JOIN contacts ct ON m.from_id=ct.id WHERE m.chat_id=?  \
-         AND m.hidden=0  \
-         AND ct.blocked=0 AND (txt LIKE ? OR ct.name LIKE ?) ORDER BY m.timestamp,m.id;"
+        let query = if !chat_id.is_unset() {
+            concat!(
+                "SELECT m.id AS id, m.timestamp AS timestamp",
+                " FROM msgs m",
+                " LEFT JOIN contacts ct",
+                "        ON m.from_id=ct.id",
+                " WHERE m.chat_id=?",
+                "   AND m.hidden=0",
+                "   AND ct.blocked=0",
+                "   AND (txt LIKE ? OR ct.name LIKE ?)",
+                " ORDER BY m.timestamp,m.id;"
+            )
         } else {
-            "SELECT m.id, m.timestamp FROM msgs m LEFT JOIN contacts ct ON m.from_id=ct.id \
-         LEFT JOIN chats c ON m.chat_id=c.id WHERE m.chat_id>9 AND m.hidden=0  \
-         AND (c.blocked=0 OR c.blocked=?) \
-         AND ct.blocked=0 AND (m.txt LIKE ? OR ct.name LIKE ?) ORDER BY m.timestamp DESC,m.id DESC;"
+            concat!(
+                "SELECT m.id AS id, m.timestamp AS timestamp",
+                " FROM msgs m",
+                " LEFT JOIN contacts ct",
+                "        ON m.from_id=ct.id",
+                " LEFT JOIN chats c",
+                "        ON m.chat_id=c.id",
+                " WHERE m.chat_id>9",
+                "   AND m.hidden=0",
+                "   AND (c.blocked=0 OR c.blocked=?)",
+                "   AND ct.blocked=0",
+                "   AND (m.txt LIKE ? OR ct.name LIKE ?)",
+                " ORDER BY m.timestamp DESC,m.id DESC;"
+            )
         };
 
         self.sql
             .query_map(
                 query,
-                params![chat_id as i32, &strLikeInText, &strLikeBeg],
-                |row| row.get::<_, i32>(0),
+                params![chat_id, &strLikeInText, &strLikeBeg],
+                |row| row.get::<_, MsgId>("id"),
                 |rows| {
                     let mut ret = Vec::new();
                     for id in rows {
-                        ret.push(id? as u32);
+                        ret.push(id?);
                     }
                     Ok(ret)
                 },
@@ -322,7 +403,7 @@ impl Context {
     }
 
     pub fn is_sentbox(&self, folder_name: impl AsRef<str>) -> bool {
-        let sentbox_name = self.sql.get_config(self, "configured_sentbox_folder");
+        let sentbox_name = self.sql.get_raw_config(self, "configured_sentbox_folder");
         if let Some(name) = sentbox_name {
             name == folder_name.as_ref()
         } else {
@@ -331,7 +412,7 @@ impl Context {
     }
 
     pub fn is_mvbox(&self, folder_name: impl AsRef<str>) -> bool {
-        let mvbox_name = self.sql.get_config(self, "configured_mvbox_folder");
+        let mvbox_name = self.sql.get_raw_config(self, "configured_mvbox_folder");
 
         if let Some(name) = mvbox_name {
             name == folder_name.as_ref()
@@ -340,41 +421,32 @@ impl Context {
         }
     }
 
-    pub fn do_heuristics_moves(&self, folder: &str, msg_id: u32) {
-        if self
-            .sql
-            .get_config_int(self, "mvbox_move")
-            .unwrap_or_else(|| 1)
-            == 0
-        {
+    pub fn do_heuristics_moves(&self, folder: &str, msg_id: MsgId) {
+        if !self.get_config_bool(Config::MvboxMove) {
             return;
         }
 
-        if !self.is_inbox(folder) && !self.is_sentbox(folder) {
+        if self.is_mvbox(folder) {
             return;
         }
-
-        if let Ok(msg) = dc_msg_new_load(self, msg_id) {
-            if dc_msg_is_setupmessage(&msg) {
+        if let Ok(msg) = Message::load_from_db(self, msg_id) {
+            if msg.is_setupmessage() {
                 // do not move setup messages;
                 // there may be a non-delta device that wants to handle it
                 return;
             }
 
-            if self.is_mvbox(folder) {
-                dc_update_msg_move_state(self, msg.rfc724_mid, MoveState::Stay);
-            }
-
-            // 1 = dc message, 2 = reply to dc message
-            if 0 != msg.is_dc_message {
-                job_add(
-                    self,
-                    Action::MoveMsg,
-                    msg.id as libc::c_int,
-                    Params::new(),
-                    0,
-                );
-                dc_update_msg_move_state(self, msg.rfc724_mid, MoveState::Moving);
+            match msg.is_dc_message {
+                MessengerMessage::No => {}
+                MessengerMessage::Yes | MessengerMessage::Reply => {
+                    job_add(
+                        self,
+                        Action::MoveMsg,
+                        msg.id.to_u32() as i32,
+                        Params::new(),
+                        0,
+                    );
+                }
             }
         }
     }
@@ -382,8 +454,8 @@ impl Context {
 
 impl Drop for Context {
     fn drop(&mut self) {
-        info!(self, "disconnecting INBOX-watch",);
-        self.inbox.read().unwrap().disconnect(self);
+        info!(self, "disconnecting inbox-thread",);
+        self.inbox_thread.read().unwrap().imap.disconnect(self);
         info!(self, "disconnecting sentbox-thread",);
         self.sentbox_thread.read().unwrap().imap.disconnect(self);
         info!(self, "disconnecting mvbox-thread",);
@@ -410,12 +482,25 @@ pub struct BobStatus {
     pub qr_scan: Option<Lot>,
 }
 
+#[derive(Debug, PartialEq)]
+pub enum PerformJobsNeeded {
+    Not,
+    AtOnce,
+    AvoidDos,
+}
+
+impl Default for PerformJobsNeeded {
+    fn default() -> Self {
+        Self::Not
+    }
+}
+
 #[derive(Default, Debug)]
 pub struct SmtpState {
     pub idle: bool,
     pub suspended: bool,
     pub doing_jobs: bool,
-    pub perform_jobs_needed: i32,
+    pub perform_jobs_needed: PerformJobsNeeded,
     pub probe_network: bool,
 }
 
@@ -434,7 +519,7 @@ mod tests {
         let tmp = tempfile::tempdir().unwrap();
         let dbfile = tmp.path().join("db.sqlite");
         std::fs::write(&dbfile, b"123").unwrap();
-        let res = Context::new(Box::new(|_, _| 0), "FakeOs".into(), dbfile);
+        let res = Context::new(Box::new(|_, _| ()), "FakeOs".into(), dbfile);
         assert!(res.is_err());
     }
 
@@ -449,7 +534,7 @@ mod tests {
     fn test_blobdir_exists() {
         let tmp = tempfile::tempdir().unwrap();
         let dbfile = tmp.path().join("db.sqlite");
-        Context::new(Box::new(|_, _| 0), "FakeOS".into(), dbfile).unwrap();
+        Context::new(Box::new(|_, _| ()), "FakeOS".into(), dbfile).unwrap();
         let blobdir = tmp.path().join("db.sqlite-blobs");
         assert!(blobdir.is_dir());
     }
@@ -460,7 +545,7 @@ mod tests {
         let dbfile = tmp.path().join("db.sqlite");
         let blobdir = tmp.path().join("db.sqlite-blobs");
         std::fs::write(&blobdir, b"123").unwrap();
-        let res = Context::new(Box::new(|_, _| 0), "FakeOS".into(), dbfile);
+        let res = Context::new(Box::new(|_, _| ()), "FakeOS".into(), dbfile);
         assert!(res.is_err());
     }
 
@@ -470,17 +555,26 @@ mod tests {
         let subdir = tmp.path().join("subdir");
         let dbfile = subdir.join("db.sqlite");
         let dbfile2 = dbfile.clone();
-        Context::new(Box::new(|_, _| 0), "FakeOS".into(), dbfile).unwrap();
+        Context::new(Box::new(|_, _| ()), "FakeOS".into(), dbfile).unwrap();
         assert!(subdir.is_dir());
         assert!(dbfile2.is_file());
     }
 
+    #[test]
+    fn test_with_empty_blobdir() {
+        let tmp = tempfile::tempdir().unwrap();
+        let dbfile = tmp.path().join("db.sqlite");
+        let blobdir = PathBuf::new();
+        let res = Context::with_blobdir(Box::new(|_, _| ()), "FakeOS".into(), dbfile, blobdir);
+        assert!(res.is_err());
+    }
+
     #[test]
     fn test_with_blobdir_not_exists() {
         let tmp = tempfile::tempdir().unwrap();
         let dbfile = tmp.path().join("db.sqlite");
         let blobdir = tmp.path().join("blobs");
-        let res = Context::with_blobdir(Box::new(|_, _| 0), "FakeOS".into(), dbfile, blobdir);
+        let res = Context::with_blobdir(Box::new(|_, _| ()), "FakeOS".into(), dbfile, blobdir);
         assert!(res.is_err());
     }
 
@@ -495,6 +589,14 @@ mod tests {
         let t = dummy_context();
 
         let info = t.ctx.get_info();
+        assert!(info.get("database_dir").is_some());
+    }
+
+    #[test]
+    fn test_get_info_no_context() {
+        let info = get_info();
+        assert!(info.get("deltachat_core_version").is_some());
+        assert!(info.get("database_dir").is_none());
         assert_eq!(info.get("level").unwrap(), "awesome");
     }
 }

src/dc_simplify.rs

@@ -1,277 +0,0 @@
-use crate::dc_dehtml::*;
-
-#[derive(Copy, Clone)]
-pub struct Simplify {
-    pub is_forwarded: bool,
-}
-
-/// Return index of footer line in vector of message lines, or vector length if
-/// no footer is found.
-///
-/// Also return whether not-standard (rfc3676, §4.3) footer is found.
-fn find_message_footer(lines: &[&str]) -> (usize, bool) {
-    for ix in 0..lines.len() {
-        let line = lines[ix];
-
-        // quoted-printable may encode `-- ` to `-- =20` which is converted
-        // back to `--  `
-        match line.as_ref() {
-            "-- " | "--  " => return (ix, false),
-            "--" | "---" | "----" => return (ix, true),
-            _ => (),
-        }
-    }
-    return (lines.len(), false);
-}
-
-impl Simplify {
-    pub fn new() -> Self {
-        Simplify {
-            is_forwarded: false,
-        }
-    }
-
-    /// Simplify and normalise text: Remove quotes, signatures, unnecessary
-    /// lineends etc.
-    /// The data returned from simplify() must be free()'d when no longer used.
-    pub fn simplify(&mut self, input: &str, is_html: bool, is_msgrmsg: bool) -> String {
-        let mut out = if is_html {
-            dc_dehtml(input)
-        } else {
-            input.to_string()
-        };
-
-        out.retain(|c| c != '\r');
-        out = self.simplify_plain_text(&out, is_msgrmsg);
-        out.retain(|c| c != '\r');
-
-        out
-    }
-
-    /**
-     * Simplify Plain Text
-     */
-    #[allow(non_snake_case)]
-    fn simplify_plain_text(&mut self, buf_terminated: &str, is_msgrmsg: bool) -> String {
-        /* This function ...
-        ... removes all text after the line `-- ` (footer mark)
-        ... removes full quotes at the beginning and at the end of the text -
-            these are all lines starting with the character `>`
-        ... remove a non-empty line before the removed quote (contains sth. like "On 2.9.2016, Bjoern wrote:" in different formats and lanugages) */
-        /* split the given buffer into lines */
-        let lines: Vec<_> = buf_terminated.split('\n').collect();
-        let mut l_first: usize = 0;
-        let mut is_cut_at_begin = false;
-        let (mut l_last, mut is_cut_at_end) = find_message_footer(&lines);
-
-        if l_last > l_first + 2 {
-            let line0 = lines[l_first];
-            let line1 = lines[l_first + 1];
-            let line2 = lines[l_first + 2];
-            if line0 == "---------- Forwarded message ----------"
-                && line1.starts_with("From: ")
-                && line2.is_empty()
-            {
-                self.is_forwarded = true;
-                l_first += 3
-            }
-        }
-        for l in l_first..l_last {
-            let line = lines[l];
-            if line == "-----"
-                || line == "_____"
-                || line == "====="
-                || line == "*****"
-                || line == "~~~~~"
-            {
-                l_last = l;
-                is_cut_at_end = true;
-                /* done */
-                break;
-            }
-        }
-        if !is_msgrmsg {
-            let mut l_lastQuotedLine = None;
-            for l in (l_first..l_last).rev() {
-                let line = lines[l];
-                if is_plain_quote(line) {
-                    l_lastQuotedLine = Some(l)
-                } else if !is_empty_line(line) {
-                    break;
-                }
-            }
-            if let Some(last_quoted_line) = l_lastQuotedLine {
-                l_last = last_quoted_line;
-                is_cut_at_end = true;
-                if l_last > 1 {
-                    if is_empty_line(lines[l_last - 1]) {
-                        l_last -= 1
-                    }
-                }
-                if l_last > 1 {
-                    let line = lines[l_last - 1];
-                    if is_quoted_headline(line) {
-                        l_last -= 1
-                    }
-                }
-            }
-        }
-        if !is_msgrmsg {
-            let mut l_lastQuotedLine_0 = None;
-            let mut hasQuotedHeadline = 0;
-            for l in l_first..l_last {
-                let line = lines[l];
-                if is_plain_quote(line) {
-                    l_lastQuotedLine_0 = Some(l)
-                } else if !is_empty_line(line) {
-                    if is_quoted_headline(line)
-                        && 0 == hasQuotedHeadline
-                        && l_lastQuotedLine_0.is_none()
-                    {
-                        hasQuotedHeadline = 1i32
-                    } else {
-                        /* non-quoting line found */
-                        break;
-                    }
-                }
-            }
-            if let Some(last_quoted_line) = l_lastQuotedLine_0 {
-                l_first = last_quoted_line + 1;
-                is_cut_at_begin = true
-            }
-        }
-        /* re-create buffer from the remaining lines */
-        let mut ret = String::new();
-        if is_cut_at_begin {
-            ret += "[...]";
-        }
-        /* we write empty lines only in case and non-empty line follows */
-        let mut pending_linebreaks: libc::c_int = 0i32;
-        let mut content_lines_added: libc::c_int = 0i32;
-        for l in l_first..l_last {
-            let line = lines[l];
-            if is_empty_line(line) {
-                pending_linebreaks += 1
-            } else {
-                if 0 != content_lines_added {
-                    if pending_linebreaks > 2i32 {
-                        pending_linebreaks = 2i32
-                    }
-                    while 0 != pending_linebreaks {
-                        ret += "\n";
-                        pending_linebreaks -= 1
-                    }
-                }
-                // the incoming message might contain invalid UTF8
-                ret += line;
-                content_lines_added += 1;
-                pending_linebreaks = 1i32
-            }
-        }
-        if is_cut_at_end && (!is_cut_at_begin || 0 != content_lines_added) {
-            ret += " [...]";
-        }
-
-        ret
-    }
-}
-
-/**
- * Tools
- */
-fn is_empty_line(buf: &str) -> bool {
-    // XXX: can it be simplified to buf.chars().all(|c| c.is_whitespace())?
-    //
-    // Strictly speaking, it is not equivalent (^A is not whitespace, but less than ' '),
-    // but having control sequences in email body?!
-    //
-    // See discussion at: https://github.com/deltachat/deltachat-core-rust/pull/402#discussion_r317062392
-    for c in buf.chars() {
-        if c > ' ' {
-            return false;
-        }
-    }
-
-    true
-}
-
-fn is_quoted_headline(buf: &str) -> bool {
-    /* This function may be called for the line _directly_ before a quote.
-    The function checks if the line contains sth. like "On 01.02.2016, xy@z wrote:" in various languages.
-    - Currently, we simply check if the last character is a ':'.
-    - Checking for the existence of an email address may fail (headlines may show the user's name instead of the address) */
-
-    buf.len() <= 80 && buf.ends_with(':')
-}
-
-fn is_plain_quote(buf: &str) -> bool {
-    buf.starts_with(">")
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use proptest::prelude::*;
-
-    proptest! {
-        #[test]
-        // proptest does not support [[:graphical:][:space:]] regex.
-        fn test_simplify_plain_text_fuzzy(input in "[!-~\t \n]+") {
-            let output = Simplify::new().simplify_plain_text(&input, true);
-            assert!(output.split('\n').all(|s| s != "-- "));
-        }
-    }
-
-    #[test]
-    fn test_simplify_trim() {
-        let mut simplify = Simplify::new();
-        let html = "\r\r\nline1<br>\r\n\r\n\r\rline2\n\r";
-        let plain = simplify.simplify(html, true, false);
-
-        assert_eq!(plain, "line1\nline2");
-    }
-
-    #[test]
-    fn test_simplify_parse_href() {
-        let mut simplify = Simplify::new();
-        let html = "<a href=url>text</a";
-        let plain = simplify.simplify(html, true, false);
-
-        assert_eq!(plain, "[text](url)");
-    }
-
-    #[test]
-    fn test_simplify_bold_text() {
-        let mut simplify = Simplify::new();
-        let html = "<!DOCTYPE name [<!DOCTYPE ...>]><!-- comment -->text <b><?php echo ... ?>bold</b><![CDATA[<>]]>";
-        let plain = simplify.simplify(html, true, false);
-
-        assert_eq!(plain, "text *bold*<>");
-    }
-
-    #[test]
-    fn test_simplify_html_encoded() {
-        let mut simplify = Simplify::new();
-        let html =
-                "&lt;&gt;&quot;&apos;&amp; &auml;&Auml;&ouml;&Ouml;&uuml;&Uuml;&szlig; foo&AElig;&ccedil;&Ccedil; &diams;&lrm;&rlm;&zwnj;&noent;&zwj;";
-
-        let plain = simplify.simplify(html, true, false);
-
-        assert_eq!(
-            plain,
-            "<>\"\'& äÄöÖüÜß fooÆçÇ \u{2666}\u{200e}\u{200f}\u{200c}&noent;\u{200d}"
-        );
-    }
-
-    #[test]
-    fn test_simplify_utilities() {
-        assert!(is_empty_line(" \t"));
-        assert!(is_empty_line(""));
-        assert!(is_empty_line(" \r"));
-        assert!(!is_empty_line(" x"));
-        assert!(is_plain_quote("> hello world"));
-        assert!(is_plain_quote(">>"));
-        assert!(!is_plain_quote("Life is pain"));
-        assert!(!is_plain_quote(""));
-    }
-}

src/dc_strencode.rs

@@ -1,469 +0,0 @@
-use std::borrow::Cow;
-use std::ffi::CString;
-use std::ptr;
-
-use charset::Charset;
-use mmime::mailmime_decode::*;
-use mmime::mmapstring::*;
-use mmime::other::*;
-use percent_encoding::{percent_decode, utf8_percent_encode, AsciiSet, CONTROLS};
-
-use crate::dc_tools::*;
-use crate::x::*;
-
-/**
- * Encode non-ascii-strings as `=?UTF-8?Q?Bj=c3=b6rn_Petersen?=`.
- * Belongs to RFC 2047: https://tools.ietf.org/html/rfc2047
- *
- * We do not fold at position 72; this would result in empty words as `=?utf-8?Q??=` which are correct,
- * but cannot be displayed by some mail programs (eg. Android Stock Mail).
- * however, this is not needed, as long as _one_ word is not longer than 72 characters.
- * _if_ it is, the display may get weird.  This affects the subject only.
- * the best solution wor all this would be if libetpan encodes the line as only libetpan knowns when a header line is full.
- *
- * @param to_encode Null-terminated UTF-8-string to encode.
- * @return Returns the encoded string which must be free()'d when no longed needed.
- *     On errors, NULL is returned.
- */
-pub unsafe fn dc_encode_header_words(to_encode_r: impl AsRef<str>) -> *mut libc::c_char {
-    let to_encode =
-        CString::new(to_encode_r.as_ref().as_bytes()).expect("invalid cstring to_encode");
-
-    let mut ok_to_continue = true;
-    let mut ret_str: *mut libc::c_char = ptr::null_mut();
-    let mut cur: *const libc::c_char = to_encode.as_ptr();
-    let mmapstr: *mut MMAPString = mmap_string_new(b"\x00" as *const u8 as *const libc::c_char);
-    if mmapstr.is_null() {
-        ok_to_continue = false;
-    }
-    loop {
-        if !ok_to_continue {
-            if !mmapstr.is_null() {
-                mmap_string_free(mmapstr);
-            }
-            break;
-        } else {
-            if *cur as libc::c_int != '\u{0}' as i32 {
-                let begin: *const libc::c_char;
-                let mut end: *const libc::c_char;
-                let mut do_quote: bool;
-                let mut quote_words: libc::c_int;
-                begin = cur;
-                end = begin;
-                quote_words = 0i32;
-                do_quote = true;
-                while *cur as libc::c_int != '\u{0}' as i32 {
-                    get_word(cur, &mut cur, &mut do_quote);
-                    if !do_quote {
-                        break;
-                    }
-                    quote_words = 1i32;
-                    end = cur;
-                    if *cur as libc::c_int != '\u{0}' as i32 {
-                        cur = cur.offset(1isize)
-                    }
-                }
-                if 0 != quote_words {
-                    if !quote_word(
-                        b"utf-8\x00" as *const u8 as *const libc::c_char,
-                        mmapstr,
-                        begin,
-                        end.wrapping_offset_from(begin) as libc::size_t,
-                    ) {
-                        ok_to_continue = false;
-                        continue;
-                    }
-                    if *end as libc::c_int == ' ' as i32 || *end as libc::c_int == '\t' as i32 {
-                        if mmap_string_append_c(mmapstr, *end).is_null() {
-                            ok_to_continue = false;
-                            continue;
-                        }
-                        end = end.offset(1isize)
-                    }
-                    if *end as libc::c_int != '\u{0}' as i32 {
-                        if mmap_string_append_len(
-                            mmapstr,
-                            end,
-                            cur.wrapping_offset_from(end) as libc::size_t,
-                        )
-                        .is_null()
-                        {
-                            ok_to_continue = false;
-                            continue;
-                        }
-                    }
-                } else if mmap_string_append_len(
-                    mmapstr,
-                    begin,
-                    cur.wrapping_offset_from(begin) as libc::size_t,
-                )
-                .is_null()
-                {
-                    ok_to_continue = false;
-                    continue;
-                }
-                if !(*cur as libc::c_int == ' ' as i32 || *cur as libc::c_int == '\t' as i32) {
-                    continue;
-                }
-                if mmap_string_append_c(mmapstr, *cur).is_null() {
-                    ok_to_continue = false;
-                    continue;
-                }
-                cur = cur.offset(1isize);
-            } else {
-                ret_str = strdup((*mmapstr).str_0);
-                ok_to_continue = false;
-            }
-        }
-    }
-
-    ret_str
-}
-
-unsafe fn quote_word(
-    display_charset: *const libc::c_char,
-    mmapstr: *mut MMAPString,
-    word: *const libc::c_char,
-    size: libc::size_t,
-) -> bool {
-    let mut cur: *const libc::c_char;
-    let mut i = 0;
-    let mut hex: [libc::c_char; 4] = [0; 4];
-    // let mut col: libc::c_int = 0i32;
-    if mmap_string_append(mmapstr, b"=?\x00" as *const u8 as *const libc::c_char).is_null() {
-        return false;
-    }
-    if mmap_string_append(mmapstr, display_charset).is_null() {
-        return false;
-    }
-    if mmap_string_append(mmapstr, b"?Q?\x00" as *const u8 as *const libc::c_char).is_null() {
-        return false;
-    }
-    // col = (*mmapstr).len as libc::c_int;
-    cur = word;
-    while i < size {
-        let mut do_quote_char = false;
-        match *cur as u8 as char {
-            ',' | ':' | '!' | '"' | '#' | '$' | '@' | '[' | '\\' | ']' | '^' | '`' | '{' | '|'
-            | '}' | '~' | '=' | '?' | '_' => do_quote_char = true,
-            _ => {
-                if *cur as u8 >= 128 {
-                    do_quote_char = true;
-                }
-            }
-        }
-        if do_quote_char {
-            print_hex(hex.as_mut_ptr(), cur);
-            if mmap_string_append(mmapstr, hex.as_mut_ptr()).is_null() {
-                return false;
-            }
-        // col += 3i32
-        } else {
-            if *cur as libc::c_int == ' ' as i32 {
-                if mmap_string_append_c(mmapstr, '_' as i32 as libc::c_char).is_null() {
-                    return false;
-                }
-            } else if mmap_string_append_c(mmapstr, *cur).is_null() {
-                return false;
-            }
-            // col += 3i32
-        }
-        cur = cur.offset(1isize);
-        i = i.wrapping_add(1)
-    }
-    if mmap_string_append(mmapstr, b"?=\x00" as *const u8 as *const libc::c_char).is_null() {
-        return false;
-    }
-
-    true
-}
-
-unsafe fn get_word(
-    begin: *const libc::c_char,
-    pend: *mut *const libc::c_char,
-    pto_be_quoted: *mut bool,
-) {
-    let mut cur: *const libc::c_char = begin;
-    while *cur as libc::c_int != ' ' as i32
-        && *cur as libc::c_int != '\t' as i32
-        && *cur as libc::c_int != '\u{0}' as i32
-    {
-        cur = cur.offset(1isize)
-    }
-    *pto_be_quoted = to_be_quoted(begin, cur.wrapping_offset_from(begin) as libc::size_t);
-    *pend = cur;
-}
-
-/* ******************************************************************************
- * Encode/decode header words, RFC 2047
- ******************************************************************************/
-
-/* see comment below */
-unsafe fn to_be_quoted(word: *const libc::c_char, size: libc::size_t) -> bool {
-    let mut cur: *const libc::c_char = word;
-    let mut i = 0;
-    while i < size {
-        match *cur as libc::c_int {
-            44 | 58 | 33 | 34 | 35 | 36 | 64 | 91 | 92 | 93 | 94 | 96 | 123 | 124 | 125 | 126
-            | 61 | 63 | 95 => return true,
-            _ => {
-                if *cur as libc::c_uchar as libc::c_int >= 128i32 {
-                    return true;
-                }
-            }
-        }
-        cur = cur.offset(1isize);
-        i = i.wrapping_add(1)
-    }
-
-    false
-}
-
-pub unsafe fn dc_decode_header_words(in_0: *const libc::c_char) -> *mut libc::c_char {
-    if in_0.is_null() {
-        return ptr::null_mut();
-    }
-    let mut out: *mut libc::c_char = ptr::null_mut();
-    let mut cur_token = 0;
-    let r: libc::c_int = mailmime_encoded_phrase_parse(
-        b"iso-8859-1\x00" as *const u8 as *const libc::c_char,
-        in_0,
-        strlen(in_0),
-        &mut cur_token,
-        b"utf-8\x00" as *const u8 as *const libc::c_char,
-        &mut out,
-    );
-    if r != MAILIMF_NO_ERROR as libc::c_int || out.is_null() {
-        out = dc_strdup(in_0)
-    }
-
-    out
-}
-
-pub fn dc_decode_header_words_safe(input: &str) -> String {
-    static FROM_ENCODING: &[u8] = b"iso-8859-1\x00";
-    static TO_ENCODING: &[u8] = b"utf-8\x00";
-    let mut out = ptr::null_mut();
-    let mut cur_token = 0;
-    let input_c = CString::yolo(input);
-    unsafe {
-        let r = mailmime_encoded_phrase_parse(
-            FROM_ENCODING.as_ptr().cast(),
-            input_c.as_ptr(),
-            input.len(),
-            &mut cur_token,
-            TO_ENCODING.as_ptr().cast(),
-            &mut out,
-        );
-        if r as u32 != MAILIMF_NO_ERROR || out.is_null() {
-            input.to_string()
-        } else {
-            let res = to_string(out);
-            free(out.cast());
-            res
-        }
-    }
-}
-
-pub fn dc_needs_ext_header(to_check: impl AsRef<str>) -> bool {
-    let to_check = to_check.as_ref();
-
-    if to_check.is_empty() {
-        return false;
-    }
-
-    to_check.chars().any(|c| {
-        !(c.is_ascii_alphanumeric()
-            || c == '-'
-            || c == '_'
-            || c == '_'
-            || c == '.'
-            || c == '~'
-            || c == '%')
-    })
-}
-
-const EXT_ASCII_ST: &AsciiSet = &CONTROLS
-    .add(b' ')
-    .add(b'-')
-    .add(b'_')
-    .add(b'.')
-    .add(b'~')
-    .add(b'%');
-
-/// Encode an UTF-8 string to the extended header format.
-pub fn dc_encode_ext_header(to_encode: impl AsRef<str>) -> String {
-    let encoded = utf8_percent_encode(to_encode.as_ref(), &EXT_ASCII_ST);
-    format!("utf-8''{}", encoded)
-}
-
-/// Decode an extended-header-format strings to UTF-8.
-pub fn dc_decode_ext_header(to_decode: &[u8]) -> Cow<str> {
-    if let Some(index) = bytes!(b'\'').find(to_decode) {
-        let (charset, rest) = to_decode.split_at(index);
-        if !charset.is_empty() {
-            // skip language
-            if let Some(index2) = bytes!(b'\'').find(&rest[1..]) {
-                let decoded = percent_decode(&rest[index2 + 2..]);
-
-                if charset != b"utf-8" && charset != b"UTF-8" {
-                    if let Some(encoding) = Charset::for_label(charset) {
-                        let bytes = decoded.collect::<Vec<u8>>();
-                        let (res, _, _) = encoding.decode(&bytes);
-                        return Cow::Owned(res.into_owned());
-                    } else {
-                        return decoded.decode_utf8_lossy();
-                    }
-                } else {
-                    return decoded.decode_utf8_lossy();
-                }
-            }
-        }
-    }
-
-    String::from_utf8_lossy(to_decode)
-}
-
-unsafe fn print_hex(target: *mut libc::c_char, cur: *const libc::c_char) {
-    assert!(!target.is_null());
-    assert!(!cur.is_null());
-
-    let bytes = std::slice::from_raw_parts(cur as *const _, strlen(cur));
-    let raw = CString::yolo(format!("={}", &hex::encode_upper(bytes)[..2]));
-    libc::memcpy(target as *mut _, raw.as_ptr() as *const _, 4);
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use std::ffi::CStr;
-
-    #[test]
-    fn test_dc_decode_header_words() {
-        unsafe {
-            let mut buf1: *mut libc::c_char = dc_decode_header_words(
-                b"=?utf-8?B?dGVzdMOkw7bDvC50eHQ=?=\x00" as *const u8 as *const libc::c_char,
-            );
-            assert_eq!(
-                strcmp(
-                    buf1,
-                    b"test\xc3\xa4\xc3\xb6\xc3\xbc.txt\x00" as *const u8 as *const libc::c_char
-                ),
-                0
-            );
-            free(buf1 as *mut libc::c_void);
-
-            buf1 =
-                dc_decode_header_words(b"just ascii test\x00" as *const u8 as *const libc::c_char);
-            assert_eq!(CStr::from_ptr(buf1).to_str().unwrap(), "just ascii test");
-            free(buf1 as *mut libc::c_void);
-
-            buf1 = dc_encode_header_words("abcdef");
-            assert_eq!(CStr::from_ptr(buf1).to_str().unwrap(), "abcdef");
-            free(buf1 as *mut libc::c_void);
-
-            buf1 = dc_encode_header_words(
-                std::string::String::from_utf8(b"test\xc3\xa4\xc3\xb6\xc3\xbc.txt".to_vec())
-                    .unwrap(),
-            );
-            assert_eq!(
-                strncmp(buf1, b"=?utf-8\x00" as *const u8 as *const libc::c_char, 7),
-                0
-            );
-
-            let buf2: *mut libc::c_char = dc_decode_header_words(buf1);
-            assert_eq!(
-                strcmp(
-                    buf2,
-                    b"test\xc3\xa4\xc3\xb6\xc3\xbc.txt\x00" as *const u8 as *const libc::c_char
-                ),
-                0
-            );
-            free(buf1 as *mut libc::c_void);
-            free(buf2 as *mut libc::c_void);
-
-            buf1 = dc_decode_header_words(
-                b"=?ISO-8859-1?Q?attachment=3B=0D=0A_filename=3D?= =?ISO-8859-1?Q?=22test=E4=F6=FC=2Etxt=22=3B=0D=0A_size=3D39?=\x00" as *const u8 as *const libc::c_char
-            );
-            assert_eq!(
-                strcmp(
-                    buf1,
-                    b"attachment;\r\n filename=\"test\xc3\xa4\xc3\xb6\xc3\xbc.txt\";\r\n size=39\x00" as *const u8 as *const libc::c_char,
-
-                ),
-                0
-            );
-            free(buf1 as *mut libc::c_void);
-        }
-    }
-
-    #[test]
-    fn test_dc_encode_ext_header() {
-        let buf1 = dc_encode_ext_header("Björn Petersen");
-        assert_eq!(&buf1, "utf-8\'\'Bj%C3%B6rn%20Petersen");
-        let buf2 = dc_decode_ext_header(buf1.as_bytes());
-        assert_eq!(&buf2, "Björn Petersen",);
-
-        let buf1 = dc_decode_ext_header(b"iso-8859-1\'en\'%A3%20rates");
-        assert_eq!(buf1, "£ rates",);
-
-        let buf1 = dc_decode_ext_header(b"wrong\'format");
-        assert_eq!(buf1, "wrong\'format",);
-
-        let buf1 = dc_decode_ext_header(b"\'\'");
-        assert_eq!(buf1, "\'\'");
-
-        let buf1 = dc_decode_ext_header(b"x\'\'");
-        assert_eq!(buf1, "");
-
-        let buf1 = dc_decode_ext_header(b"\'");
-        assert_eq!(buf1, "\'");
-
-        let buf1 = dc_decode_ext_header(b"");
-        assert_eq!(buf1, "");
-
-        // regressions
-        assert_eq!(
-            dc_decode_ext_header(dc_encode_ext_header("%0A").as_bytes()),
-            "%0A"
-        );
-    }
-
-    #[test]
-    fn test_dc_needs_ext_header() {
-        assert_eq!(dc_needs_ext_header("Björn"), true);
-        assert_eq!(dc_needs_ext_header("Bjoern"), false);
-        assert_eq!(dc_needs_ext_header(""), false);
-        assert_eq!(dc_needs_ext_header(" "), true);
-        assert_eq!(dc_needs_ext_header("a b"), true);
-    }
-
-    #[test]
-    fn test_print_hex() {
-        let mut hex: [libc::c_char; 4] = [0; 4];
-        let cur = b"helloworld" as *const u8 as *const libc::c_char;
-        unsafe { print_hex(hex.as_mut_ptr(), cur) };
-        assert_eq!(to_string(hex.as_ptr() as *const _), "=68");
-
-        let cur = b":" as *const u8 as *const libc::c_char;
-        unsafe { print_hex(hex.as_mut_ptr(), cur) };
-        assert_eq!(to_string(hex.as_ptr() as *const _), "=3A");
-    }
-
-    use proptest::prelude::*;
-
-    proptest! {
-        #[test]
-        fn test_ext_header_roundtrip(buf: String) {
-            let encoded = dc_encode_ext_header(&buf);
-            let decoded = dc_decode_ext_header(encoded.as_bytes());
-            assert_eq!(buf, decoded);
-        }
-
-        #[test]
-        fn test_ext_header_decode_anything(buf: Vec<u8>) {
-            // make sure this never panics
-            let _decoded = dc_decode_ext_header(&buf);
-        }
-    }
-}

src/dehtml.rs

@@ -1,3 +1,7 @@
+//! De-HTML
+//!
+//! A module to remove HTML tags from the email text
+
 use lazy_static::lazy_static;
 use quick_xml;
 use quick_xml::events::{BytesEnd, BytesStart, BytesText};
@@ -19,22 +23,18 @@ enum AddText {
     YesPreserveLineEnds,
 }
 
-// dc_dehtml() returns way too many lineends; however, an optimisation on this issue is not needed as
-// the lineends are typically remove in further processing by the caller
-pub fn dc_dehtml(buf_terminated: &str) -> String {
-    let buf_terminated = buf_terminated.trim();
-
-    if buf_terminated.is_empty() {
-        return "".into();
-    }
+// dehtml() returns way too many newlines; however, an optimisation on this issue is not needed as
+// the newlines are typically removed in further processing by the caller
+pub fn dehtml(buf: &str) -> String {
+    let buf = buf.trim();
 
     let mut dehtml = Dehtml {
-        strbuilder: String::with_capacity(buf_terminated.len()),
+        strbuilder: String::with_capacity(buf.len()),
         add_text: AddText::YesRemoveLineEnds,
         last_href: None,
     };
 
-    let mut reader = quick_xml::Reader::from_str(buf_terminated);
+    let mut reader = quick_xml::Reader::from_str(buf);
 
     let mut buf = Vec::new();
 
@@ -139,13 +139,12 @@ fn dehtml_starttag_cb<B: std::io::BufRead>(
             dehtml.add_text = AddText::YesPreserveLineEnds;
         }
         "a" => {
-            if let Some(href) = event.html_attributes().find(|attr| {
-                attr.as_ref()
-                    .map(|a| String::from_utf8_lossy(a.key).trim().to_lowercase() == "href")
-                    .unwrap_or_default()
-            }) {
+            if let Some(href) = event
+                .html_attributes()
+                .filter_map(|attr| attr.ok())
+                .find(|attr| String::from_utf8_lossy(attr.key).trim().to_lowercase() == "href")
+            {
                 let href = href
-                    .unwrap()
                     .unescape_and_decode_value(reader)
                     .unwrap_or_default()
                     .to_lowercase();
@@ -171,7 +170,7 @@ mod tests {
     use super::*;
 
     #[test]
-    fn test_dc_dehtml() {
+    fn test_dehtml() {
         let cases = vec![
             (
                 "<a href='https://example.com'> Foo </a>",
@@ -186,7 +185,44 @@ mod tests {
             ("", ""),
         ];
         for (input, output) in cases {
-            assert_eq!(dc_dehtml(input), output);
+            assert_eq!(dehtml(input), output);
         }
     }
+
+    #[test]
+    fn test_dehtml_parse_br() {
+        let html = "\r\r\nline1<br>\r\n\r\n\r\rline2\n\r";
+        let plain = dehtml(html);
+
+        assert_eq!(plain, "line1\n\r\r\rline2");
+    }
+
+    #[test]
+    fn test_dehtml_parse_href() {
+        let html = "<a href=url>text</a";
+        let plain = dehtml(html);
+
+        assert_eq!(plain, "[text](url)");
+    }
+
+    #[test]
+    fn test_dehtml_bold_text() {
+        let html = "<!DOCTYPE name [<!DOCTYPE ...>]><!-- comment -->text <b><?php echo ... ?>bold</b><![CDATA[<>]]>";
+        let plain = dehtml(html);
+
+        assert_eq!(plain, "text *bold*<>");
+    }
+
+    #[test]
+    fn test_dehtml_html_encoded() {
+        let html =
+                "&lt;&gt;&quot;&apos;&amp; &auml;&Auml;&ouml;&Ouml;&uuml;&Uuml;&szlig; foo&AElig;&ccedil;&Ccedil; &diams;&lrm;&rlm;&zwnj;&noent;&zwj;";
+
+        let plain = dehtml(html);
+
+        assert_eq!(
+            plain,
+            "<>\"\'& äÄöÖüÜß fooÆçÇ \u{2666}\u{200e}\u{200f}\u{200c}&noent;\u{200d}"
+        );
+    }
 }

src/error.rs

@@ -1,36 +1,72 @@
-use failure::Fail;
+//! # Error handling
+
+use lettre_email::mime;
 
 #[derive(Debug, Fail)]
 pub enum Error {
-    #[fail(display = "Sqlite Error: {:?}", _0)]
-    Sql(rusqlite::Error),
-    #[fail(display = "Sqlite Connection Pool Error: {:?}", _0)]
-    ConnectionPool(r2d2::Error),
     #[fail(display = "{:?}", _0)]
     Failure(failure::Error),
-    #[fail(display = "Sqlite: Connection closed")]
-    SqlNoConnection,
-    #[fail(display = "Sqlite: Already open")]
-    SqlAlreadyOpen,
-    #[fail(display = "Sqlite: Failed to open")]
-    SqlFailedToOpen,
+
+    #[fail(display = "SQL error: {:?}", _0)]
+    SqlError(#[cause] crate::sql::Error),
+
     #[fail(display = "{:?}", _0)]
     Io(std::io::Error),
+
     #[fail(display = "{:?}", _0)]
     Message(String),
+
     #[fail(display = "{:?}", _0)]
     Image(image_meta::ImageError),
+
     #[fail(display = "{:?}", _0)]
     Utf8(std::str::Utf8Error),
+
+    #[fail(display = "PGP: {:?}", _0)]
+    Pgp(pgp::errors::Error),
+
+    #[fail(display = "Base64Decode: {:?}", _0)]
+    Base64Decode(base64::DecodeError),
+
     #[fail(display = "{:?}", _0)]
-    CStringError(crate::dc_tools::CStringError),
+    FromUtf8(std::string::FromUtf8Error),
+
+    #[fail(display = "{}", _0)]
+    BlobError(#[cause] crate::blob::BlobError),
+
+    #[fail(display = "Invalid Message ID.")]
+    InvalidMsgId,
+
+    #[fail(display = "Watch folder not found {:?}", _0)]
+    WatchFolderNotFound(String),
+
+    #[fail(display = "Invalid Email: {:?}", _0)]
+    MailParseError(#[cause] mailparse::MailParseError),
+
+    #[fail(display = "Building invalid Email: {:?}", _0)]
+    LettreError(#[cause] lettre_email::error::Error),
+
+    #[fail(display = "SMTP error: {:?}", _0)]
+    SmtpError(#[cause] async_smtp::error::Error),
+
+    #[fail(display = "FromStr error: {:?}", _0)]
+    FromStr(#[cause] mime::FromStrError),
+
+    #[fail(display = "Not Configured")]
+    NotConfigured,
 }
 
 pub type Result<T> = std::result::Result<T, Error>;
 
-impl From<rusqlite::Error> for Error {
-    fn from(err: rusqlite::Error) -> Error {
-        Error::Sql(err)
+impl From<crate::sql::Error> for Error {
+    fn from(err: crate::sql::Error) -> Error {
+        Error::SqlError(err)
+    }
+}
+
+impl From<base64::DecodeError> for Error {
+    fn from(err: base64::DecodeError) -> Error {
+        Error::Base64Decode(err)
     }
 }
 
@@ -40,12 +76,6 @@ impl From<failure::Error> for Error {
     }
 }
 
-impl From<r2d2::Error> for Error {
-    fn from(err: r2d2::Error) -> Error {
-        Error::ConnectionPool(err)
-    }
-}
-
 impl From<std::io::Error> for Error {
     fn from(err: std::io::Error) -> Error {
         Error::Io(err)
@@ -64,9 +94,45 @@ impl From<image_meta::ImageError> for Error {
     }
 }
 
-impl From<crate::dc_tools::CStringError> for Error {
-    fn from(err: crate::dc_tools::CStringError) -> Error {
-        Error::CStringError(err)
+impl From<pgp::errors::Error> for Error {
+    fn from(err: pgp::errors::Error) -> Error {
+        Error::Pgp(err)
+    }
+}
+
+impl From<std::string::FromUtf8Error> for Error {
+    fn from(err: std::string::FromUtf8Error) -> Error {
+        Error::FromUtf8(err)
+    }
+}
+
+impl From<crate::blob::BlobError> for Error {
+    fn from(err: crate::blob::BlobError) -> Error {
+        Error::BlobError(err)
+    }
+}
+
+impl From<crate::message::InvalidMsgId> for Error {
+    fn from(_err: crate::message::InvalidMsgId) -> Error {
+        Error::InvalidMsgId
+    }
+}
+
+impl From<mailparse::MailParseError> for Error {
+    fn from(err: mailparse::MailParseError) -> Error {
+        Error::MailParseError(err)
+    }
+}
+
+impl From<lettre_email::error::Error> for Error {
+    fn from(err: lettre_email::error::Error) -> Error {
+        Error::LettreError(err)
+    }
+}
+
+impl From<mime::FromStrError> for Error {
+    fn from(err: mime::FromStrError) -> Error {
+        Error::FromStr(err)
     }
 }
 

src/events.rs

@@ -1,8 +1,11 @@
+//! # Events specification
+
 use std::path::PathBuf;
 
 use strum::EnumProperty;
 
-use crate::stock::StockMessage;
+use crate::chat::ChatId;
+use crate::message::MsgId;
 
 impl Event {
     /// Returns the corresponding Event id.
@@ -19,35 +22,45 @@ pub enum Event {
     /// The library-user may write an informational string to the log.
     /// Passed to the callback given to dc_context_new().
     /// This event should not be reported to the end-user using a popup or something like that.
-    ///
-    /// @return 0
     #[strum(props(id = "100"))]
     Info(String),
 
     /// Emitted when SMTP connection is established and login was successful.
-    ///
-    /// @return 0
     #[strum(props(id = "101"))]
     SmtpConnected(String),
 
     /// Emitted when IMAP connection is established and login was successful.
-    ///
-    /// @return 0
     #[strum(props(id = "102"))]
     ImapConnected(String),
 
     /// Emitted when a message was successfully sent to the SMTP server.
-    ///
-    /// @return 0
     #[strum(props(id = "103"))]
     SmtpMessageSent(String),
 
+    /// Emitted when an IMAP message has been marked as deleted
+    #[strum(props(id = "104"))]
+    ImapMessageDeleted(String),
+
+    /// Emitted when an IMAP message has been moved
+    #[strum(props(id = "105"))]
+    ImapMessageMoved(String),
+
+    /// Emitted when an IMAP folder was emptied
+    #[strum(props(id = "106"))]
+    ImapFolderEmptied(String),
+
+    /// Emitted when an new file in the $BLOBDIR was created
+    #[strum(props(id = "150"))]
+    NewBlobFile(String),
+
+    /// Emitted when an new file in the $BLOBDIR was created
+    #[strum(props(id = "151"))]
+    DeletedBlobFile(String),
+
     /// The library-user should write a warning string to the log.
     /// Passed to the callback given to dc_context_new().
     ///
     /// This event should not be reported to the end-user using a popup or something like that.
-    ///
-    /// @return 0
     #[strum(props(id = "300"))]
     Warning(String),
 
@@ -60,10 +73,8 @@ pub enum Event {
     /// However, for ongoing processes (eg. configure())
     /// or for functions that are expected to fail (eg. dc_continue_key_transfer())
     /// it might be better to delay showing these events until the function has really
-    /// failed (returned false). It should be sufficient to report only the _last_ error
+    /// failed (returned false). It should be sufficient to report only the *last* error
     /// in a messasge box then.
-    ///
-    /// @return
     #[strum(props(id = "400"))]
     Error(String),
 
@@ -80,8 +91,6 @@ pub enum Event {
     /// Moreover, if the UI detects that the device is offline,
     /// it is probably more useful to report this to the user
     /// instead of the string from data2.
-    ///
-    /// @return 0
     #[strum(props(id = "401"))]
     ErrorNetwork(String),
 
@@ -90,8 +99,6 @@ pub enum Event {
     /// dc_set_chat_name(), dc_set_chat_profile_image(),
     /// dc_add_contact_to_chat(), dc_remove_contact_from_chat(),
     /// dc_send_text_msg() or another sending function.
-    ///
-    /// @return 0
     #[strum(props(id = "410"))]
     ErrorSelfNotInGroup(String),
 
@@ -100,54 +107,41 @@ pub enum Event {
     /// - Messages sent, received or removed
     /// - Chats created, deleted or archived
     /// - A draft has been set
-    ///
-    /// @return 0
     #[strum(props(id = "2000"))]
-    MsgsChanged { chat_id: u32, msg_id: u32 },
+    MsgsChanged { chat_id: ChatId, msg_id: MsgId },
 
     /// There is a fresh message. Typically, the user will show an notification
     /// when receiving this message.
     ///
     /// There is no extra #DC_EVENT_MSGS_CHANGED event send together with this event.
-    ///
-    /// @return 0
     #[strum(props(id = "2005"))]
-    IncomingMsg { chat_id: u32, msg_id: u32 },
+    IncomingMsg { chat_id: ChatId, msg_id: MsgId },
 
     /// A single message is sent successfully. State changed from  DC_STATE_OUT_PENDING to
     /// DC_STATE_OUT_DELIVERED, see dc_msg_get_state().
-    ///
-    /// @return 0
     #[strum(props(id = "2010"))]
-    MsgDelivered { chat_id: u32, msg_id: u32 },
+    MsgDelivered { chat_id: ChatId, msg_id: MsgId },
 
     /// A single message could not be sent. State changed from DC_STATE_OUT_PENDING or DC_STATE_OUT_DELIVERED to
     /// DC_STATE_OUT_FAILED, see dc_msg_get_state().
-    ///
-    /// @return 0
     #[strum(props(id = "2012"))]
-    MsgFailed { chat_id: u32, msg_id: u32 },
+    MsgFailed { chat_id: ChatId, msg_id: MsgId },
 
     /// A single message is read by the receiver. State changed from DC_STATE_OUT_DELIVERED to
     /// DC_STATE_OUT_MDN_RCVD, see dc_msg_get_state().
-    ///
-    /// @return 0
     #[strum(props(id = "2015"))]
-    MsgRead { chat_id: u32, msg_id: u32 },
+    MsgRead { chat_id: ChatId, msg_id: MsgId },
 
     /// Chat changed.  The name or the image of a chat group was changed or members were added or removed.
     /// Or the verify state of a chat has changed.
     /// See dc_set_chat_name(), dc_set_chat_profile_image(), dc_add_contact_to_chat()
     /// and dc_remove_contact_from_chat().
-    ///
-    /// @return 0
     #[strum(props(id = "2020"))]
-    ChatModified(u32),
+    ChatModified(ChatId),
 
     /// Contact(s) created, renamed, blocked or deleted.
     ///
     /// @param data1 (int) If set, this is the contact_id of an added contact that should be selected.
-    /// @return 0
     #[strum(props(id = "2030"))]
     ContactsChanged(Option<u32>),
 
@@ -156,33 +150,29 @@ pub enum Event {
     /// @param data1 (u32) contact_id of the contact for which the location has changed.
     ///     If the locations of several contacts have been changed,
     ///     eg. after calling dc_delete_all_locations(), this parameter is set to `None`.
-    /// @return 0
     #[strum(props(id = "2035"))]
     LocationChanged(Option<u32>),
 
     /// Inform about the configuration progress started by configure().
     ///
     /// @param data1 (usize) 0=error, 1-999=progress in permille, 1000=success and done
-    /// @return 0
     #[strum(props(id = "2041"))]
     ConfigureProgress(usize),
 
-    /// Inform about the import/export progress started by dc_imex().
+    /// Inform about the import/export progress started by imex().
     ///
     /// @param data1 (usize) 0=error, 1-999=progress in permille, 1000=success and done
     /// @param data2 0
-    /// @return 0
     #[strum(props(id = "2051"))]
     ImexProgress(usize),
 
-    /// A file has been exported. A file has been written by dc_imex().
-    /// This event may be sent multiple times by a single call to dc_imex().
+    /// A file has been exported. A file has been written by imex().
+    /// This event may be sent multiple times by a single call to imex().
     ///
     /// A typical purpose for a handler of this event may be to make the file public to some system
     /// services.
     ///
     /// @param data2 0
-    /// @return 0
     #[strum(props(id = "2052"))]
     ImexFileWritten(PathBuf),
 
@@ -198,7 +188,6 @@ pub enum Event {
     ///     600=vg-/vc-request-with-auth received, vg-member-added/vc-contact-confirm sent, typically shown as "bob@addr verified".
     ///     800=vg-member-added-received received, shown as "bob@addr securely joined GROUP", only sent for the verified-group-protocol.
     ///     1000=Protocol finished for this contact.
-    /// @return 0
     #[strum(props(id = "2060"))]
     SecurejoinInviterProgress { contact_id: u32, progress: usize },
 
@@ -210,20 +199,12 @@ pub enum Event {
     /// @param data2 (int) Progress as:
     ///     400=vg-/vc-request-with-auth sent, typically shown as "alice@addr verified, introducing myself."
     ///     (Bob has verified alice and waits until Alice does the same for him)
-    /// @return 0
     #[strum(props(id = "2061"))]
     SecurejoinJoinerProgress { contact_id: u32, progress: usize },
 
-    // the following events are functions that should be provided by the frontends
-    /// Requeste a localized string from the frontend.
-    /// @param data1 (int) ID of the string to request, one of the DC_STR_/// constants.
-    /// @param data2 (int) The count. If the requested string contains a placeholder for a numeric value,
-    ///     the ui may use this value to return different strings on different plural forms.
-    /// @return (const char*) Null-terminated UTF-8 string.
-    ///     The string will be free()'d by the core,
-    ///     so it must be allocated using malloc() or a compatible function.
-    ///     Return 0 if the ui cannot provide the requested string
-    ///     the core will use a default string in english language then.
-    #[strum(props(id = "2091"))]
-    GetString { id: StockMessage, count: usize },
+    /// This event is sent out to the inviter when a joiner successfully joined a group.
+    /// @param data1 (int) chat_id
+    /// @param data2 (int) contact_id
+    #[strum(props(id = "2062"))]
+    SecurejoinMemberAdded { chat_id: ChatId, contact_id: u32 },
 }

src/headerdef.rs

@@ -0,0 +1,62 @@
+#[derive(Debug, Display, Clone, PartialEq, Eq, EnumVariantNames)]
+#[strum(serialize_all = "kebab_case")]
+#[allow(dead_code)]
+pub enum HeaderDef {
+    MessageId,
+    Subject,
+    Date,
+    From_,
+    To,
+    Cc,
+    Disposition,
+    OriginalMessageId,
+
+    /// Delta Chat extension for message IDs in combined MDNs
+    AdditionalMessageIds,
+
+    ListId,
+    References,
+    InReplyTo,
+    Precedence,
+    ChatVersion,
+    ChatGroupId,
+    ChatGroupName,
+    ChatGroupNameChanged,
+    ChatVerified,
+    ChatGroupImage, // deprecated
+    ChatGroupAvatar,
+    ChatUserAvatar,
+    ChatVoiceMessage,
+    ChatGroupMemberRemoved,
+    ChatGroupMemberAdded,
+    ChatContent,
+    ChatDuration,
+    ChatDispositionNotificationTo,
+    AutocryptSetupMessage,
+    SecureJoin,
+    SecureJoinGroup,
+    SecureJoinFingerprint,
+    SecureJoinInvitenumber,
+    SecureJoinAuth,
+    _TestHeader,
+}
+
+impl HeaderDef {
+    /// Returns the corresponding Event id.
+    pub fn get_headername(&self) -> String {
+        self.to_string()
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    /// Test that kebab_case serialization works as expected
+    fn kebab_test() {
+        assert_eq!(HeaderDef::From_.to_string(), "from");
+
+        assert_eq!(HeaderDef::_TestHeader.to_string(), "test-header");
+    }
+}

src/imap/idle.rs

@@ -0,0 +1,273 @@
+use super::Imap;
+
+use async_imap::extensions::idle::IdleResponse;
+use async_std::prelude::*;
+use async_std::task;
+use std::sync::atomic::Ordering;
+use std::time::{Duration, SystemTime};
+
+use crate::context::Context;
+use crate::imap_client::*;
+
+use super::select_folder;
+
+type Result<T> = std::result::Result<T, Error>;
+
+#[derive(Debug, Fail)]
+pub enum Error {
+    #[fail(display = "IMAP IDLE protocol failed to init/complete")]
+    IdleProtocolFailed(#[cause] async_imap::error::Error),
+
+    #[fail(display = "IMAP IDLE protocol timed out")]
+    IdleTimeout(#[cause] async_std::future::TimeoutError),
+
+    #[fail(display = "IMAP server does not have IDLE capability")]
+    IdleAbilityMissing,
+
+    #[fail(display = "IMAP select folder error")]
+    SelectFolderError(#[cause] select_folder::Error),
+
+    #[fail(display = "IMAP error")]
+    ImapError(#[cause] async_imap::error::Error),
+
+    #[fail(display = "Setup handle error")]
+    SetupHandleError(#[cause] super::Error),
+}
+
+impl From<select_folder::Error> for Error {
+    fn from(err: select_folder::Error) -> Error {
+        Error::SelectFolderError(err)
+    }
+}
+
+impl Imap {
+    pub fn can_idle(&self) -> bool {
+        task::block_on(async move { self.config.read().await.can_idle })
+    }
+
+    pub fn idle(&self, context: &Context, watch_folder: Option<String>) -> Result<()> {
+        task::block_on(async move {
+            if !self.can_idle() {
+                return Err(Error::IdleAbilityMissing);
+            }
+
+            self.setup_handle_if_needed(context)
+                .await
+                .map_err(Error::SetupHandleError)?;
+
+            self.select_folder(context, watch_folder.clone()).await?;
+
+            let session = self.session.lock().await.take();
+            let timeout = Duration::from_secs(23 * 60);
+            if let Some(session) = session {
+                match session.idle() {
+                    // BEWARE: If you change the Secure branch you
+                    // typically also need to change the Insecure branch.
+                    IdleHandle::Secure(mut handle) => {
+                        if let Err(err) = handle.init().await {
+                            return Err(Error::IdleProtocolFailed(err));
+                        }
+
+                        let (idle_wait, interrupt) = handle.wait_with_timeout(timeout);
+                        *self.interrupt.lock().await = Some(interrupt);
+
+                        if self.skip_next_idle_wait.load(Ordering::SeqCst) {
+                            // interrupt_idle has happened before we
+                            // provided self.interrupt
+                            self.skip_next_idle_wait.store(false, Ordering::SeqCst);
+                            std::mem::drop(idle_wait);
+                            info!(context, "Idle wait was skipped");
+                        } else {
+                            info!(context, "Idle entering wait-on-remote state");
+                            match idle_wait.await {
+                                IdleResponse::NewData(_) => {
+                                    info!(context, "Idle has NewData");
+                                }
+                                // TODO: idle_wait does not distinguish manual interrupts
+                                // from Timeouts if we would know it's a Timeout we could bail
+                                // directly and reconnect .
+                                IdleResponse::Timeout => {
+                                    info!(context, "Idle-wait timeout or interruption");
+                                }
+                                IdleResponse::ManualInterrupt => {
+                                    info!(context, "Idle wait was interrupted");
+                                }
+                            }
+                        }
+                        // if we can't properly terminate the idle
+                        // protocol let's break the connection.
+                        let res =
+                            async_std::future::timeout(Duration::from_secs(15), handle.done())
+                                .await
+                                .map_err(|err| {
+                                    self.trigger_reconnect();
+                                    Error::IdleTimeout(err)
+                                })?;
+
+                        match res {
+                            Ok(session) => {
+                                *self.session.lock().await = Some(Session::Secure(session));
+                            }
+                            Err(err) => {
+                                // if we cannot terminate IDLE it probably
+                                // means that we waited long (with idle_wait)
+                                // but the network went away/changed
+                                self.trigger_reconnect();
+                                return Err(Error::IdleProtocolFailed(err));
+                            }
+                        }
+                    }
+                    IdleHandle::Insecure(mut handle) => {
+                        if let Err(err) = handle.init().await {
+                            return Err(Error::IdleProtocolFailed(err));
+                        }
+
+                        let (idle_wait, interrupt) = handle.wait_with_timeout(timeout);
+                        *self.interrupt.lock().await = Some(interrupt);
+
+                        if self.skip_next_idle_wait.load(Ordering::SeqCst) {
+                            // interrupt_idle has happened before we
+                            // provided self.interrupt
+                            self.skip_next_idle_wait.store(false, Ordering::SeqCst);
+                            std::mem::drop(idle_wait);
+                            info!(context, "Idle wait was skipped");
+                        } else {
+                            info!(context, "Idle entering wait-on-remote state");
+                            match idle_wait.await {
+                                IdleResponse::NewData(_) => {
+                                    info!(context, "Idle has NewData");
+                                }
+                                // TODO: idle_wait does not distinguish manual interrupts
+                                // from Timeouts if we would know it's a Timeout we could bail
+                                // directly and reconnect .
+                                IdleResponse::Timeout => {
+                                    info!(context, "Idle-wait timeout or interruption");
+                                }
+                                IdleResponse::ManualInterrupt => {
+                                    info!(context, "Idle wait was interrupted");
+                                }
+                            }
+                        }
+                        // if we can't properly terminate the idle
+                        // protocol let's break the connection.
+                        let res =
+                            async_std::future::timeout(Duration::from_secs(15), handle.done())
+                                .await
+                                .map_err(|err| {
+                                    self.trigger_reconnect();
+                                    Error::IdleTimeout(err)
+                                })?;
+
+                        match res {
+                            Ok(session) => {
+                                *self.session.lock().await = Some(Session::Insecure(session));
+                            }
+                            Err(err) => {
+                                // if we cannot terminate IDLE it probably
+                                // means that we waited long (with idle_wait)
+                                // but the network went away/changed
+                                self.trigger_reconnect();
+                                return Err(Error::IdleProtocolFailed(err));
+                            }
+                        }
+                    }
+                }
+            }
+
+            Ok(())
+        })
+    }
+
+    pub(crate) fn fake_idle(&self, context: &Context, watch_folder: Option<String>) {
+        // Idle using polling. This is also needed if we're not yet configured -
+        // in this case, we're waiting for a configure job (and an interrupt).
+        task::block_on(async move {
+            let fake_idle_start_time = SystemTime::now();
+
+            info!(context, "IMAP-fake-IDLEing...");
+
+            let interrupt = stop_token::StopSource::new();
+
+            // check every minute if there are new messages
+            // TODO: grow sleep durations / make them more flexible
+            let interval = async_std::stream::interval(Duration::from_secs(60));
+            let mut interrupt_interval = interrupt.stop_token().stop_stream(interval);
+            *self.interrupt.lock().await = Some(interrupt);
+            if self.skip_next_idle_wait.load(Ordering::SeqCst) {
+                // interrupt_idle has happened before we
+                // provided self.interrupt
+                self.skip_next_idle_wait.store(false, Ordering::SeqCst);
+                info!(context, "fake-idle wait was skipped");
+            } else {
+                // loop until we are interrupted or if we fetched something
+                while let Some(_) = interrupt_interval.next().await {
+                    // try to connect with proper login params
+                    // (setup_handle_if_needed might not know about them if we
+                    // never successfully connected)
+                    if let Err(err) = self.connect_configured(context) {
+                        warn!(context, "fake_idle: could not connect: {}", err);
+                        continue;
+                    }
+                    if self.config.read().await.can_idle {
+                        // we only fake-idled because network was gone during IDLE, probably
+                        break;
+                    }
+                    info!(context, "fake_idle is connected");
+                    // we are connected, let's see if fetching messages results
+                    // in anything.  If so, we behave as if IDLE had data but
+                    // will have already fetched the messages so perform_*_fetch
+                    // will not find any new.
+
+                    if let Some(ref watch_folder) = watch_folder {
+                        match self.fetch_new_messages(context, watch_folder).await {
+                            Ok(res) => {
+                                info!(context, "fetch_new_messages returned {:?}", res);
+                                if res {
+                                    break;
+                                }
+                            }
+                            Err(err) => {
+                                error!(context, "could not fetch from folder: {}", err);
+                                self.trigger_reconnect()
+                            }
+                        }
+                    }
+                }
+            }
+            self.interrupt.lock().await.take();
+
+            info!(
+                context,
+                "IMAP-fake-IDLE done after {:.4}s",
+                SystemTime::now()
+                    .duration_since(fake_idle_start_time)
+                    .unwrap_or_default()
+                    .as_millis() as f64
+                    / 1000.,
+            );
+        })
+    }
+
+    pub fn interrupt_idle(&self, context: &Context) {
+        task::block_on(async move {
+            let mut interrupt: Option<stop_token::StopSource> = self.interrupt.lock().await.take();
+            if interrupt.is_none() {
+                // idle wait is not running, signal it needs to skip
+                self.skip_next_idle_wait.store(true, Ordering::SeqCst);
+
+                // meanwhile idle-wait may have produced the StopSource
+                interrupt = self.interrupt.lock().await.take();
+            }
+            // let's manually drop the StopSource
+            if interrupt.is_some() {
+                // the imap thread provided us a stop token but might
+                // not have entered idle_wait yet, give it some time
+                // for that to happen. XXX handle this without extra wait
+                // https://github.com/deltachat/deltachat-core-rust/issues/925
+                std::thread::sleep(Duration::from_millis(200));
+                info!(context, "low-level: dropping stop-source to interrupt idle");
+                std::mem::drop(interrupt)
+            }
+        });
+    }
+}

src/imap/select_folder.rs

@@ -0,0 +1,113 @@
+use super::Imap;
+
+use crate::context::Context;
+
+type Result<T> = std::result::Result<T, Error>;
+
+#[derive(Debug, Fail)]
+pub enum Error {
+    #[fail(display = "IMAP Could not obtain imap-session object.")]
+    NoSession,
+
+    #[fail(display = "IMAP Connection Lost or no connection established")]
+    ConnectionLost,
+
+    #[fail(display = "IMAP Folder name invalid: {:?}", _0)]
+    BadFolderName(String),
+
+    #[fail(display = "IMAP close/expunge failed: {}", _0)]
+    CloseExpungeFailed(#[cause] async_imap::error::Error),
+
+    #[fail(display = "IMAP other error: {:?}", _0)]
+    Other(String),
+}
+
+impl Imap {
+    /// select a folder, possibly update uid_validity and, if needed,
+    /// expunge the folder to remove delete-marked messages.
+    pub(super) async fn select_folder<S: AsRef<str>>(
+        &self,
+        context: &Context,
+        folder: Option<S>,
+    ) -> Result<()> {
+        if self.session.lock().await.is_none() {
+            let mut cfg = self.config.write().await;
+            cfg.selected_folder = None;
+            cfg.selected_folder_needs_expunge = false;
+            self.trigger_reconnect();
+            return Err(Error::NoSession);
+        }
+
+        // if there is a new folder and the new folder is equal to the selected one, there's nothing to do.
+        // if there is _no_ new folder, we continue as we might want to expunge below.
+        if let Some(ref folder) = folder {
+            if let Some(ref selected_folder) = self.config.read().await.selected_folder {
+                if folder.as_ref() == selected_folder {
+                    return Ok(());
+                }
+            }
+        }
+
+        // deselect existing folder, if needed (it's also done implicitly by SELECT, however, without EXPUNGE then)
+        let needs_expunge = { self.config.read().await.selected_folder_needs_expunge };
+        if needs_expunge {
+            if let Some(ref folder) = self.config.read().await.selected_folder {
+                info!(context, "Expunge messages in \"{}\".", folder);
+
+                // A CLOSE-SELECT is considerably faster than an EXPUNGE-SELECT, see
+                // https://tools.ietf.org/html/rfc3501#section-6.4.2
+                if let Some(ref mut session) = &mut *self.session.lock().await {
+                    match session.close().await {
+                        Ok(_) => {
+                            info!(context, "close/expunge succeeded");
+                        }
+                        Err(err) => {
+                            self.trigger_reconnect();
+                            return Err(Error::CloseExpungeFailed(err));
+                        }
+                    }
+                } else {
+                    return Err(Error::NoSession);
+                }
+            }
+            self.config.write().await.selected_folder_needs_expunge = false;
+        }
+
+        // select new folder
+        if let Some(ref folder) = folder {
+            if let Some(ref mut session) = &mut *self.session.lock().await {
+                let res = session.select(folder).await;
+
+                // https://tools.ietf.org/html/rfc3501#section-6.3.1
+                // says that if the server reports select failure we are in
+                // authenticated (not-select) state.
+
+                match res {
+                    Ok(mailbox) => {
+                        let mut config = self.config.write().await;
+                        config.selected_folder = Some(folder.as_ref().to_string());
+                        config.selected_mailbox = Some(mailbox);
+                        Ok(())
+                    }
+                    Err(async_imap::error::Error::ConnectionLost) => {
+                        self.trigger_reconnect();
+                        self.config.write().await.selected_folder = None;
+                        Err(Error::ConnectionLost)
+                    }
+                    Err(async_imap::error::Error::Validate(_)) => {
+                        Err(Error::BadFolderName(folder.as_ref().to_string()))
+                    }
+                    Err(err) => {
+                        self.config.write().await.selected_folder = None;
+                        self.trigger_reconnect();
+                        Err(Error::Other(err.to_string()))
+                    }
+                }
+            } else {
+                Err(Error::NoSession)
+            }
+        } else {
+            Ok(())
+        }
+    }
+}

src/imap_client.rs

@@ -0,0 +1,292 @@
+use async_imap::{
+    error::{Error as ImapError, Result as ImapResult},
+    extensions::idle::Handle as ImapIdleHandle,
+    types::{Capabilities, Fetch, Mailbox, Name},
+    Client as ImapClient, Session as ImapSession,
+};
+use async_native_tls::TlsStream;
+use async_std::net::{self, TcpStream};
+use async_std::prelude::*;
+
+use crate::login_param::{dc_build_tls, CertificateChecks};
+
+#[derive(Debug)]
+pub(crate) enum Client {
+    Secure(ImapClient<TlsStream<TcpStream>>),
+    Insecure(ImapClient<TcpStream>),
+}
+
+#[derive(Debug)]
+pub(crate) enum Session {
+    Secure(ImapSession<TlsStream<TcpStream>>),
+    Insecure(ImapSession<TcpStream>),
+}
+
+#[derive(Debug)]
+pub(crate) enum IdleHandle {
+    Secure(ImapIdleHandle<TlsStream<TcpStream>>),
+    Insecure(ImapIdleHandle<TcpStream>),
+}
+
+impl Client {
+    pub async fn connect_secure<A: net::ToSocketAddrs, S: AsRef<str>>(
+        addr: A,
+        domain: S,
+        certificate_checks: CertificateChecks,
+    ) -> ImapResult<Self> {
+        let stream = TcpStream::connect(addr).await?;
+        let tls = dc_build_tls(certificate_checks)?;
+        let tls_connector: async_native_tls::TlsConnector = tls.into();
+        let tls_stream = tls_connector.connect(domain.as_ref(), stream).await?;
+        let mut client = ImapClient::new(tls_stream);
+        if std::env::var(crate::DCC_IMAP_DEBUG).is_ok() {
+            client.debug = true;
+        }
+
+        let _greeting = client
+            .read_response()
+            .await
+            .ok_or_else(|| ImapError::Bad("failed to read greeting".to_string()))?;
+
+        Ok(Client::Secure(client))
+    }
+
+    pub async fn connect_insecure<A: net::ToSocketAddrs>(addr: A) -> ImapResult<Self> {
+        let stream = TcpStream::connect(addr).await?;
+
+        let mut client = ImapClient::new(stream);
+        if std::env::var(crate::DCC_IMAP_DEBUG).is_ok() {
+            client.debug = true;
+        }
+        let _greeting = client
+            .read_response()
+            .await
+            .ok_or_else(|| ImapError::Bad("failed to read greeting".to_string()))?;
+
+        Ok(Client::Insecure(client))
+    }
+
+    pub async fn secure<S: AsRef<str>>(
+        self,
+        domain: S,
+        certificate_checks: CertificateChecks,
+    ) -> ImapResult<Client> {
+        match self {
+            Client::Insecure(client) => {
+                let tls = dc_build_tls(certificate_checks)?;
+                let tls_stream = tls.into();
+
+                let client_sec = client.secure(domain, &tls_stream).await?;
+
+                Ok(Client::Secure(client_sec))
+            }
+            // Nothing to do
+            Client::Secure(_) => Ok(self),
+        }
+    }
+
+    pub async fn authenticate<A: async_imap::Authenticator, S: AsRef<str>>(
+        self,
+        auth_type: S,
+        authenticator: &A,
+    ) -> Result<Session, (ImapError, Client)> {
+        match self {
+            Client::Secure(i) => match i.authenticate(auth_type, authenticator).await {
+                Ok(session) => Ok(Session::Secure(session)),
+                Err((err, c)) => Err((err, Client::Secure(c))),
+            },
+            Client::Insecure(i) => match i.authenticate(auth_type, authenticator).await {
+                Ok(session) => Ok(Session::Insecure(session)),
+                Err((err, c)) => Err((err, Client::Insecure(c))),
+            },
+        }
+    }
+
+    pub async fn login<U: AsRef<str>, P: AsRef<str>>(
+        self,
+        username: U,
+        password: P,
+    ) -> Result<Session, (ImapError, Client)> {
+        match self {
+            Client::Secure(i) => match i.login(username, password).await {
+                Ok(session) => Ok(Session::Secure(session)),
+                Err((err, c)) => Err((err, Client::Secure(c))),
+            },
+            Client::Insecure(i) => match i.login(username, password).await {
+                Ok(session) => Ok(Session::Insecure(session)),
+                Err((err, c)) => Err((err, Client::Insecure(c))),
+            },
+        }
+    }
+}
+
+impl Session {
+    pub async fn capabilities(&mut self) -> ImapResult<Capabilities> {
+        let res = match self {
+            Session::Secure(i) => i.capabilities().await?,
+            Session::Insecure(i) => i.capabilities().await?,
+        };
+
+        Ok(res)
+    }
+
+    pub async fn list(
+        &mut self,
+        reference_name: Option<&str>,
+        mailbox_pattern: Option<&str>,
+    ) -> ImapResult<Vec<Name>> {
+        let res = match self {
+            Session::Secure(i) => {
+                i.list(reference_name, mailbox_pattern)
+                    .await?
+                    .collect::<ImapResult<_>>()
+                    .await?
+            }
+            Session::Insecure(i) => {
+                i.list(reference_name, mailbox_pattern)
+                    .await?
+                    .collect::<ImapResult<_>>()
+                    .await?
+            }
+        };
+        Ok(res)
+    }
+
+    pub async fn create<S: AsRef<str>>(&mut self, mailbox_name: S) -> ImapResult<()> {
+        match self {
+            Session::Secure(i) => i.create(mailbox_name).await?,
+            Session::Insecure(i) => i.create(mailbox_name).await?,
+        }
+        Ok(())
+    }
+
+    pub async fn subscribe<S: AsRef<str>>(&mut self, mailbox: S) -> ImapResult<()> {
+        match self {
+            Session::Secure(i) => i.subscribe(mailbox).await?,
+            Session::Insecure(i) => i.subscribe(mailbox).await?,
+        }
+        Ok(())
+    }
+
+    pub async fn close(&mut self) -> ImapResult<()> {
+        match self {
+            Session::Secure(i) => i.close().await?,
+            Session::Insecure(i) => i.close().await?,
+        }
+        Ok(())
+    }
+
+    pub async fn select<S: AsRef<str>>(&mut self, mailbox_name: S) -> ImapResult<Mailbox> {
+        let mbox = match self {
+            Session::Secure(i) => i.select(mailbox_name).await?,
+            Session::Insecure(i) => i.select(mailbox_name).await?,
+        };
+
+        Ok(mbox)
+    }
+
+    pub async fn fetch<S1, S2>(&mut self, sequence_set: S1, query: S2) -> ImapResult<Vec<Fetch>>
+    where
+        S1: AsRef<str>,
+        S2: AsRef<str>,
+    {
+        let res = match self {
+            Session::Secure(i) => {
+                i.fetch(sequence_set, query)
+                    .await?
+                    .collect::<ImapResult<_>>()
+                    .await?
+            }
+            Session::Insecure(i) => {
+                i.fetch(sequence_set, query)
+                    .await?
+                    .collect::<ImapResult<_>>()
+                    .await?
+            }
+        };
+        Ok(res)
+    }
+
+    pub async fn uid_fetch<S1, S2>(&mut self, uid_set: S1, query: S2) -> ImapResult<Vec<Fetch>>
+    where
+        S1: AsRef<str>,
+        S2: AsRef<str>,
+    {
+        let res = match self {
+            Session::Secure(i) => {
+                i.uid_fetch(uid_set, query)
+                    .await?
+                    .collect::<ImapResult<_>>()
+                    .await?
+            }
+            Session::Insecure(i) => {
+                i.uid_fetch(uid_set, query)
+                    .await?
+                    .collect::<ImapResult<_>>()
+                    .await?
+            }
+        };
+
+        Ok(res)
+    }
+
+    pub fn idle(self) -> IdleHandle {
+        match self {
+            Session::Secure(i) => {
+                let h = i.idle();
+                IdleHandle::Secure(h)
+            }
+            Session::Insecure(i) => {
+                let h = i.idle();
+                IdleHandle::Insecure(h)
+            }
+        }
+    }
+
+    pub async fn uid_store<S1, S2>(&mut self, uid_set: S1, query: S2) -> ImapResult<Vec<Fetch>>
+    where
+        S1: AsRef<str>,
+        S2: AsRef<str>,
+    {
+        let res = match self {
+            Session::Secure(i) => {
+                i.uid_store(uid_set, query)
+                    .await?
+                    .collect::<ImapResult<_>>()
+                    .await?
+            }
+            Session::Insecure(i) => {
+                i.uid_store(uid_set, query)
+                    .await?
+                    .collect::<ImapResult<_>>()
+                    .await?
+            }
+        };
+        Ok(res)
+    }
+
+    pub async fn uid_mv<S1: AsRef<str>, S2: AsRef<str>>(
+        &mut self,
+        uid_set: S1,
+        mailbox_name: S2,
+    ) -> ImapResult<()> {
+        match self {
+            Session::Secure(i) => i.uid_mv(uid_set, mailbox_name).await?,
+            Session::Insecure(i) => i.uid_mv(uid_set, mailbox_name).await?,
+        }
+        Ok(())
+    }
+
+    pub async fn uid_copy<S1: AsRef<str>, S2: AsRef<str>>(
+        &mut self,
+        uid_set: S1,
+        mailbox_name: S2,
+    ) -> ImapResult<()> {
+        match self {
+            Session::Secure(i) => i.uid_copy(uid_set, mailbox_name).await?,
+            Session::Insecure(i) => i.uid_copy(uid_set, mailbox_name).await?,
+        }
+
+        Ok(())
+    }
+}

src/imex.rs

@@ -0,0 +1,857 @@
+//! # Import/export module
+
+use core::cmp::{max, min};
+use std::path::Path;
+
+use num_traits::FromPrimitive;
+use rand::{thread_rng, Rng};
+
+use crate::blob::BlobObject;
+use crate::chat;
+use crate::chat::delete_and_reset_all_device_msgs;
+use crate::config::Config;
+use crate::configure::*;
+use crate::constants::*;
+use crate::context::Context;
+use crate::dc_tools::*;
+use crate::e2ee;
+use crate::error::*;
+use crate::events::Event;
+use crate::job::*;
+use crate::key::*;
+use crate::message::{Message, MsgId};
+use crate::mimeparser::SystemMessage;
+use crate::param::*;
+use crate::pgp;
+use crate::sql::{self, Sql};
+use crate::stock::StockMessage;
+
+#[derive(Debug, Display, Copy, Clone, PartialEq, Eq, FromPrimitive, ToPrimitive)]
+#[repr(i32)]
+pub enum ImexMode {
+    /// Export all private keys and all public keys of the user to the
+    /// directory given as `param1`.  The default key is written to the files `public-key-default.asc`
+    /// and `private-key-default.asc`, if there are more keys, they are written to files as
+    /// `public-key-<id>.asc` and `private-key-<id>.asc`
+    ExportSelfKeys = 1,
+
+    /// Import private keys found in the directory given as `param1`.
+    /// The last imported key is made the default keys unless its name contains the string `legacy`.
+    /// Public keys are not imported.
+    ImportSelfKeys = 2,
+
+    /// Export a backup to the directory given as `param1`.
+    /// The backup contains all contacts, chats, images and other data and device independent settings.
+    /// The backup does not contain device dependent settings as ringtones or LED notification settings.
+    /// The name of the backup is typically `delta-chat.<day>.bak`, if more than one backup is create on a day,
+    /// the format is `delta-chat.<day>-<number>.bak`
+    ExportBackup = 11,
+
+    /// `param1` is the file (not: directory) to import. The file is normally
+    /// created by DC_IMEX_EXPORT_BACKUP and detected by dc_imex_has_backup(). Importing a backup
+    /// is only possible as long as the context is not configured or used in another way.
+    ImportBackup = 12,
+}
+
+/// Import/export things.
+/// For this purpose, the function creates a job that is executed in the IMAP-thread then;
+/// this requires to call dc_perform_inbox_jobs() regularly.
+///
+/// What to do is defined by the *what* parameter.
+///
+/// While dc_imex() returns immediately, the started job may take a while,
+/// you can stop it using dc_stop_ongoing_process(). During execution of the job,
+/// some events are sent out:
+///
+/// - A number of #DC_EVENT_IMEX_PROGRESS events are sent and may be used to create
+///   a progress bar or stuff like that. Moreover, you'll be informed when the imex-job is done.
+///
+/// - For each file written on export, the function sends #DC_EVENT_IMEX_FILE_WRITTEN
+///
+/// Only one import-/export-progress can run at the same time.
+/// To cancel an import-/export-progress, use dc_stop_ongoing_process().
+pub fn imex(context: &Context, what: ImexMode, param1: Option<impl AsRef<Path>>) {
+    let mut param = Params::new();
+    param.set_int(Param::Cmd, what as i32);
+    if let Some(param1) = param1 {
+        param.set(Param::Arg, param1.as_ref().to_string_lossy());
+    }
+
+    job_kill_action(context, Action::ImexImap);
+    job_add(context, Action::ImexImap, 0, param, 0);
+}
+
+/// Returns the filename of the backup found (otherwise an error)
+pub fn has_backup(context: &Context, dir_name: impl AsRef<Path>) -> Result<String> {
+    let dir_name = dir_name.as_ref();
+    let dir_iter = std::fs::read_dir(dir_name)?;
+    let mut newest_backup_time = 0;
+    let mut newest_backup_path: Option<std::path::PathBuf> = None;
+    for dirent in dir_iter {
+        if let Ok(dirent) = dirent {
+            let path = dirent.path();
+            let name = dirent.file_name();
+            let name = name.to_string_lossy();
+            if name.starts_with("delta-chat") && name.ends_with(".bak") {
+                let sql = Sql::new();
+                if sql.open(context, &path, true) {
+                    let curr_backup_time = sql
+                        .get_raw_config_int(context, "backup_time")
+                        .unwrap_or_default();
+                    if curr_backup_time > newest_backup_time {
+                        newest_backup_path = Some(path);
+                        newest_backup_time = curr_backup_time;
+                    }
+                    info!(context, "backup_time of {} is {}", name, curr_backup_time);
+                    sql.close(&context);
+                }
+            }
+        }
+    }
+    match newest_backup_path {
+        Some(path) => Ok(path.to_string_lossy().into_owned()),
+        None => bail!("no backup found in {}", dir_name.display()),
+    }
+}
+
+pub fn initiate_key_transfer(context: &Context) -> Result<String> {
+    ensure!(context.alloc_ongoing(), "could not allocate ongoing");
+    let res = do_initiate_key_transfer(context);
+    context.free_ongoing();
+    res
+}
+
+fn do_initiate_key_transfer(context: &Context) -> Result<String> {
+    let mut msg: Message;
+    let setup_code = create_setup_code(context);
+    /* this may require a keypair to be created. this may take a second ... */
+    ensure!(!context.shall_stop_ongoing(), "canceled");
+    let setup_file_content = render_setup_file(context, &setup_code)?;
+    /* encrypting may also take a while ... */
+    ensure!(!context.shall_stop_ongoing(), "canceled");
+    let setup_file_blob = BlobObject::create(
+        context,
+        "autocrypt-setup-message.html",
+        setup_file_content.as_bytes(),
+    )?;
+
+    let chat_id = chat::create_by_contact_id(context, DC_CONTACT_ID_SELF)?;
+    msg = Message::default();
+    msg.viewtype = Viewtype::File;
+    msg.param.set(Param::File, setup_file_blob.as_name());
+
+    msg.param
+        .set(Param::MimeType, "application/autocrypt-setup");
+    msg.param.set_cmd(SystemMessage::AutocryptSetupMessage);
+    msg.param.set_int(
+        Param::ForcePlaintext,
+        ForcePlaintext::NoAutocryptHeader as i32,
+    );
+
+    ensure!(!context.shall_stop_ongoing(), "canceled");
+    let msg_id = chat::send_msg(context, chat_id, &mut msg)?;
+    info!(context, "Wait for setup message being sent ...",);
+    while !context.shall_stop_ongoing() {
+        std::thread::sleep(std::time::Duration::from_secs(1));
+        if let Ok(msg) = Message::load_from_db(context, msg_id) {
+            if msg.is_sent() {
+                info!(context, "... setup message sent.",);
+                break;
+            }
+        }
+    }
+    // no maybe_add_bcc_self_device_msg() here.
+    // the ui shows the dialog with the setup code on this device,
+    // it would be too much noise to have two things popping up at the same time.
+    // maybe_add_bcc_self_device_msg() is called on the other device
+    // once the transfer is completed.
+    Ok(setup_code)
+}
+
+/// Renders HTML body of a setup file message.
+///
+/// The `passphrase` must be at least 2 characters long.
+pub fn render_setup_file(context: &Context, passphrase: &str) -> Result<String> {
+    ensure!(
+        passphrase.len() >= 2,
+        "Passphrase must be at least 2 chars long."
+    );
+    let self_addr = e2ee::ensure_secret_key_exists(context)?;
+    let private_key = Key::from_self_private(context, self_addr, &context.sql)
+        .ok_or_else(|| format_err!("Failed to get private key."))?;
+    let ac_headers = match context.get_config_bool(Config::E2eeEnabled) {
+        false => None,
+        true => Some(("Autocrypt-Prefer-Encrypt", "mutual")),
+    };
+    let private_key_asc = private_key.to_asc(ac_headers);
+    let encr = pgp::symm_encrypt(&passphrase, private_key_asc.as_bytes())?;
+
+    let replacement = format!(
+        concat!(
+            "-----BEGIN PGP MESSAGE-----\r\n",
+            "Passphrase-Format: numeric9x4\r\n",
+            "Passphrase-Begin: {}"
+        ),
+        &passphrase[..2]
+    );
+    let pgp_msg = encr.replace("-----BEGIN PGP MESSAGE-----", &replacement);
+
+    let msg_subj = context.stock_str(StockMessage::AcSetupMsgSubject);
+    let msg_body = context.stock_str(StockMessage::AcSetupMsgBody);
+    let msg_body_html = msg_body.replace("\r", "").replace("\n", "<br>");
+    Ok(format!(
+        concat!(
+            "<!DOCTYPE html>\r\n",
+            "<html>\r\n",
+            "  <head>\r\n",
+            "    <title>{}</title>\r\n",
+            "  </head>\r\n",
+            "  <body>\r\n",
+            "    <h1>{}</h1>\r\n",
+            "    <p>{}</p>\r\n",
+            "    <pre>\r\n{}\r\n</pre>\r\n",
+            "  </body>\r\n",
+            "</html>\r\n"
+        ),
+        msg_subj, msg_subj, msg_body_html, pgp_msg
+    ))
+}
+
+pub fn create_setup_code(_context: &Context) -> String {
+    let mut random_val: u16;
+    let mut rng = thread_rng();
+    let mut ret = String::new();
+
+    for i in 0..9 {
+        loop {
+            random_val = rng.gen();
+            if random_val as usize <= 60000 {
+                break;
+            }
+        }
+        random_val = (random_val as usize % 10000) as u16;
+        ret += &format!(
+            "{}{:04}",
+            if 0 != i { "-" } else { "" },
+            random_val as usize
+        );
+    }
+
+    ret
+}
+
+fn maybe_add_bcc_self_device_msg(context: &Context) -> Result<()> {
+    if !context.sql.get_raw_config_bool(context, "bcc_self") {
+        let mut msg = Message::new(Viewtype::Text);
+        // TODO: define this as a stockstring once the wording is settled.
+        msg.text = Some(
+            "It seems you are using multiple devices with Delta Chat. Great!\n\n\
+             If you also want to synchronize outgoing messages accross all devices, \
+             go to the settings and enable \"Send copy to self\"."
+                .to_string(),
+        );
+        chat::add_device_msg(context, Some("bcc-self-hint"), Some(&mut msg))?;
+    }
+    Ok(())
+}
+
+pub fn continue_key_transfer(context: &Context, msg_id: MsgId, setup_code: &str) -> Result<()> {
+    ensure!(!msg_id.is_special(), "wrong id");
+
+    let msg = Message::load_from_db(context, msg_id)?;
+    ensure!(
+        msg.is_setupmessage(),
+        "Message is no Autocrypt Setup Message."
+    );
+
+    if let Some(filename) = msg.get_file(context) {
+        let file = dc_open_file(context, filename)?;
+        let sc = normalize_setup_code(setup_code);
+        let armored_key = decrypt_setup_file(context, &sc, file)?;
+        set_self_key(context, &armored_key, true, true)?;
+        maybe_add_bcc_self_device_msg(context)?;
+
+        Ok(())
+    } else {
+        bail!("Message is no Autocrypt Setup Message.");
+    }
+}
+
+fn set_self_key(
+    context: &Context,
+    armored: &str,
+    set_default: bool,
+    prefer_encrypt_required: bool,
+) -> Result<()> {
+    // try hard to only modify key-state
+    let keys = Key::from_armored_string(armored, KeyType::Private)
+        .and_then(|(k, h)| if k.verify() { Some((k, h)) } else { None })
+        .and_then(|(k, h)| k.split_key().map(|pub_key| (k, pub_key, h)));
+
+    ensure!(keys.is_some(), "Not a valid private key");
+
+    let (private_key, public_key, header) = keys.unwrap();
+    let preferencrypt = header.get("Autocrypt-Prefer-Encrypt");
+    match preferencrypt.map(|s| s.as_str()) {
+        Some(headerval) => {
+            let e2ee_enabled = match headerval {
+                "nopreference" => 0,
+                "mutual" => 1,
+                _ => {
+                    bail!("invalid Autocrypt-Prefer-Encrypt header: {:?}", header);
+                }
+            };
+            context
+                .sql
+                .set_raw_config_int(context, "e2ee_enabled", e2ee_enabled)?;
+        }
+        None => {
+            if prefer_encrypt_required {
+                bail!("missing Autocrypt-Prefer-Encrypt header");
+            }
+        }
+    };
+
+    let self_addr = context.get_config(Config::ConfiguredAddr);
+    ensure!(self_addr.is_some(), "Missing self addr");
+
+    // XXX maybe better make dc_key_save_self_keypair delete things
+    sql::execute(
+        context,
+        &context.sql,
+        "DELETE FROM keypairs WHERE public_key=? OR private_key=?;",
+        params![public_key.to_bytes(), private_key.to_bytes()],
+    )?;
+
+    if set_default {
+        sql::execute(
+            context,
+            &context.sql,
+            "UPDATE keypairs SET is_default=0;",
+            params![],
+        )?;
+    }
+
+    if !dc_key_save_self_keypair(
+        context,
+        &public_key,
+        &private_key,
+        self_addr.unwrap_or_default(),
+        set_default,
+        &context.sql,
+    ) {
+        bail!("Cannot save keypair, internal key-state possibly corrupted now!");
+    }
+    Ok(())
+}
+
+fn decrypt_setup_file<T: std::io::Read + std::io::Seek>(
+    _context: &Context,
+    passphrase: &str,
+    file: T,
+) -> Result<String> {
+    let plain_bytes = pgp::symm_decrypt(passphrase, file)?;
+    let plain_text = std::string::String::from_utf8(plain_bytes)?;
+
+    Ok(plain_text)
+}
+
+pub fn normalize_setup_code(s: &str) -> String {
+    let mut out = String::new();
+    for c in s.chars() {
+        if c >= '0' && c <= '9' {
+            out.push(c);
+            if let 4 | 9 | 14 | 19 | 24 | 29 | 34 | 39 = out.len() {
+                out += "-"
+            }
+        }
+    }
+    out
+}
+
+#[allow(non_snake_case)]
+pub fn JobImexImap(context: &Context, job: &Job) -> Result<()> {
+    ensure!(context.alloc_ongoing(), "could not allocate ongoing");
+    let what: Option<ImexMode> = job.param.get_int(Param::Cmd).and_then(ImexMode::from_i32);
+    let param = job.param.get(Param::Arg).unwrap_or_default();
+
+    ensure!(!param.is_empty(), "No Import/export dir/file given.");
+    info!(context, "Import/export process started.");
+    context.call_cb(Event::ImexProgress(10));
+
+    ensure!(context.sql.is_open(), "Database not opened.");
+    if what == Some(ImexMode::ExportBackup) || what == Some(ImexMode::ExportSelfKeys) {
+        // before we export anything, make sure the private key exists
+        if e2ee::ensure_secret_key_exists(context).is_err() {
+            context.free_ongoing();
+            bail!("Cannot create private key or private key not available.");
+        } else {
+            dc_create_folder(context, &param)?;
+        }
+    }
+    let path = Path::new(param);
+    let success = match what {
+        Some(ImexMode::ExportSelfKeys) => export_self_keys(context, path),
+        Some(ImexMode::ImportSelfKeys) => import_self_keys(context, path),
+        Some(ImexMode::ExportBackup) => export_backup(context, path),
+        Some(ImexMode::ImportBackup) => import_backup(context, path),
+        None => {
+            bail!("unknown IMEX type");
+        }
+    };
+    context.free_ongoing();
+    match success {
+        Ok(()) => {
+            info!(context, "IMEX successfully completed");
+            context.call_cb(Event::ImexProgress(1000));
+            Ok(())
+        }
+        Err(err) => {
+            context.call_cb(Event::ImexProgress(0));
+            bail!("IMEX FAILED to complete: {}", err);
+        }
+    }
+}
+
+/// Import Backup
+fn import_backup(context: &Context, backup_to_import: impl AsRef<Path>) -> Result<()> {
+    info!(
+        context,
+        "Import \"{}\" to \"{}\".",
+        backup_to_import.as_ref().display(),
+        context.get_dbfile().display()
+    );
+
+    ensure!(
+        !dc_is_configured(context),
+        "Cannot import backups to accounts in use."
+    );
+    context.sql.close(&context);
+    dc_delete_file(context, context.get_dbfile());
+    ensure!(
+        !context.get_dbfile().exists(),
+        "Cannot delete old database."
+    );
+
+    ensure!(
+        dc_copy_file(context, backup_to_import.as_ref(), context.get_dbfile()),
+        "could not copy file"
+    );
+    /* error already logged */
+    /* re-open copied database file */
+    ensure!(
+        context.sql.open(&context, &context.get_dbfile(), false),
+        "could not re-open db"
+    );
+
+    delete_and_reset_all_device_msgs(&context)?;
+
+    let total_files_cnt = context
+        .sql
+        .query_get_value::<_, isize>(context, "SELECT COUNT(*) FROM backup_blobs;", params![])
+        .unwrap_or_default() as usize;
+    info!(
+        context,
+        "***IMPORT-in-progress: total_files_cnt={:?}", total_files_cnt,
+    );
+
+    let res = context.sql.query_map(
+        "SELECT file_name, file_content FROM backup_blobs ORDER BY id;",
+        params![],
+        |row| {
+            let name: String = row.get(0)?;
+            let blob: Vec<u8> = row.get(1)?;
+
+            Ok((name, blob))
+        },
+        |files| {
+            for (processed_files_cnt, file) in files.enumerate() {
+                let (file_name, file_blob) = file?;
+                if context.shall_stop_ongoing() {
+                    return Ok(false);
+                }
+                let mut permille = processed_files_cnt * 1000 / total_files_cnt;
+                if permille < 10 {
+                    permille = 10
+                }
+                if permille > 990 {
+                    permille = 990
+                }
+                context.call_cb(Event::ImexProgress(permille));
+                if file_blob.is_empty() {
+                    continue;
+                }
+
+                let path_filename = context.get_blobdir().join(file_name);
+                dc_write_file(context, &path_filename, &file_blob)?;
+            }
+            Ok(true)
+        },
+    );
+
+    match res {
+        Ok(all_files_extracted) => {
+            if all_files_extracted {
+                // only delete backup_blobs if all files were successfully extracted
+                sql::execute(context, &context.sql, "DROP TABLE backup_blobs;", params![])?;
+                sql::try_execute(context, &context.sql, "VACUUM;").ok();
+                Ok(())
+            } else {
+                bail!("received stop signal");
+            }
+        }
+        Err(err) => Err(err.into()),
+    }
+}
+
+/*******************************************************************************
+ * Export backup
+ ******************************************************************************/
+/* the FILE_PROGRESS macro calls the callback with the permille of files processed.
+The macro avoids weird values of 0% or 100% while still working. */
+fn export_backup(context: &Context, dir: impl AsRef<Path>) -> Result<()> {
+    // get a fine backup file name (the name includes the date so that multiple backup instances are possible)
+    // FIXME: we should write to a temporary file first and rename it on success. this would guarantee the backup is complete.
+    // let dest_path_filename = dc_get_next_backup_file(context, dir, res);
+    let now = time();
+    let dest_path_filename = dc_get_next_backup_path(dir, now)?;
+    let dest_path_string = dest_path_filename.to_string_lossy().to_string();
+
+    sql::housekeeping(context);
+
+    sql::try_execute(context, &context.sql, "VACUUM;").ok();
+
+    // we close the database during the copy of the dbfile
+    context.sql.close(context);
+    info!(
+        context,
+        "Backup '{}' to '{}'.",
+        context.get_dbfile().display(),
+        dest_path_filename.display(),
+    );
+    let copied = dc_copy_file(context, context.get_dbfile(), &dest_path_filename);
+    context.sql.open(&context, &context.get_dbfile(), false);
+
+    if !copied {
+        bail!(
+            "could not copy file from '{}' to '{}'",
+            context.get_dbfile().display(),
+            dest_path_string
+        );
+    }
+    let dest_sql = Sql::new();
+    ensure!(
+        dest_sql.open(context, &dest_path_filename, false),
+        "could not open exported database {}",
+        dest_path_string
+    );
+    let res = match add_files_to_export(context, &dest_sql) {
+        Err(err) => {
+            dc_delete_file(context, &dest_path_filename);
+            error!(context, "backup failed: {}", err);
+            Err(err)
+        }
+        Ok(()) => {
+            dest_sql.set_raw_config_int(context, "backup_time", now as i32)?;
+            context.call_cb(Event::ImexFileWritten(dest_path_filename));
+            Ok(())
+        }
+    };
+    dest_sql.close(context);
+
+    Ok(res?)
+}
+
+fn add_files_to_export(context: &Context, sql: &Sql) -> Result<()> {
+    // add all files as blobs to the database copy (this does not require
+    // the source to be locked, neigher the destination as it is used only here)
+    if !sql.table_exists("backup_blobs") {
+        sql::execute(
+            context,
+            &sql,
+            "CREATE TABLE backup_blobs (id INTEGER PRIMARY KEY, file_name, file_content);",
+            params![],
+        )?
+    }
+    // copy all files from BLOBDIR into backup-db
+    let mut total_files_cnt = 0;
+    let dir = context.get_blobdir();
+    let dir_handle = std::fs::read_dir(&dir)?;
+    total_files_cnt += dir_handle.filter(|r| r.is_ok()).count();
+
+    info!(context, "EXPORT: total_files_cnt={}", total_files_cnt);
+    // scan directory, pass 2: copy files
+    let dir_handle = std::fs::read_dir(&dir)?;
+    let exported_all_files = sql.prepare(
+        "INSERT INTO backup_blobs (file_name, file_content) VALUES (?, ?);",
+        |mut stmt, _| {
+            let mut processed_files_cnt = 0;
+            for entry in dir_handle {
+                let entry = entry?;
+                if context.shall_stop_ongoing() {
+                    return Ok(false);
+                }
+                processed_files_cnt += 1;
+                let permille = max(min(processed_files_cnt * 1000 / total_files_cnt, 990), 10);
+                context.call_cb(Event::ImexProgress(permille));
+
+                let name_f = entry.file_name();
+                let name = name_f.to_string_lossy();
+                if name.starts_with("delta-chat") && name.ends_with(".bak") {
+                    continue;
+                }
+                info!(context, "EXPORT: copying filename={}", name);
+                let curr_path_filename = context.get_blobdir().join(entry.file_name());
+                if let Ok(buf) = dc_read_file(context, &curr_path_filename) {
+                    if buf.is_empty() {
+                        continue;
+                    }
+                    // bail out if we can't insert
+                    stmt.execute(params![name, buf])?;
+                }
+            }
+            Ok(true)
+        },
+    )?;
+    ensure!(exported_all_files, "canceled during export-files");
+    Ok(())
+}
+
+/*******************************************************************************
+ * Classic key import
+ ******************************************************************************/
+fn import_self_keys(context: &Context, dir: impl AsRef<Path>) -> Result<()> {
+    /* hint: even if we switch to import Autocrypt Setup Files, we should leave the possibility to import
+    plain ASC keys, at least keys without a password, if we do not want to implement a password entry function.
+    Importing ASC keys is useful to use keys in Delta Chat used by any other non-Autocrypt-PGP implementation.
+
+    Maybe we should make the "default" key handlong also a little bit smarter
+    (currently, the last imported key is the standard key unless it contains the string "legacy" in its name) */
+    let mut set_default: bool;
+    let mut imported_cnt = 0;
+
+    let dir_name = dir.as_ref().to_string_lossy();
+    let dir_handle = std::fs::read_dir(&dir)?;
+    for entry in dir_handle {
+        let entry_fn = entry?.file_name();
+        let name_f = entry_fn.to_string_lossy();
+        let path_plus_name = dir.as_ref().join(&entry_fn);
+        match dc_get_filesuffix_lc(&name_f) {
+            Some(suffix) => {
+                if suffix != "asc" {
+                    continue;
+                }
+                set_default = if name_f.contains("legacy") {
+                    info!(context, "found legacy key '{}'", path_plus_name.display());
+                    false
+                } else {
+                    true
+                }
+            }
+            None => {
+                continue;
+            }
+        }
+        match dc_read_file(context, &path_plus_name) {
+            Ok(buf) => {
+                let armored = std::string::String::from_utf8_lossy(&buf);
+                if let Err(err) = set_self_key(context, &armored, set_default, false) {
+                    error!(context, "set_self_key: {}", err);
+                    continue;
+                }
+            }
+            Err(_) => continue,
+        }
+        imported_cnt += 1;
+    }
+    ensure!(
+        imported_cnt > 0,
+        "No private keys found in \"{}\".",
+        dir_name
+    );
+    Ok(())
+}
+
+fn export_self_keys(context: &Context, dir: impl AsRef<Path>) -> Result<()> {
+    let mut export_errors = 0;
+
+    context.sql.query_map(
+        "SELECT id, public_key, private_key, is_default FROM keypairs;",
+        params![],
+        |row| {
+            let id = row.get(0)?;
+            let public_key_blob: Vec<u8> = row.get(1)?;
+            let public_key = Key::from_slice(&public_key_blob, KeyType::Public);
+            let private_key_blob: Vec<u8> = row.get(2)?;
+            let private_key = Key::from_slice(&private_key_blob, KeyType::Private);
+            let is_default: i32 = row.get(3)?;
+
+            Ok((id, public_key, private_key, is_default))
+        },
+        |keys| {
+            for key_pair in keys {
+                let (id, public_key, private_key, is_default) = key_pair?;
+                let id = Some(id).filter(|_| is_default != 0);
+                if let Some(key) = public_key {
+                    if export_key_to_asc_file(context, &dir, id, &key).is_err() {
+                        export_errors += 1;
+                    }
+                } else {
+                    export_errors += 1;
+                }
+                if let Some(key) = private_key {
+                    if export_key_to_asc_file(context, &dir, id, &key).is_err() {
+                        export_errors += 1;
+                    }
+                } else {
+                    export_errors += 1;
+                }
+            }
+
+            Ok(())
+        },
+    )?;
+
+    ensure!(export_errors == 0, "errors while exporting keys");
+    Ok(())
+}
+
+/*******************************************************************************
+ * Classic key export
+ ******************************************************************************/
+fn export_key_to_asc_file(
+    context: &Context,
+    dir: impl AsRef<Path>,
+    id: Option<i64>,
+    key: &Key,
+) -> std::io::Result<()> {
+    let file_name = {
+        let kind = if key.is_public() { "public" } else { "private" };
+        let id = id.map_or("default".into(), |i| i.to_string());
+
+        dir.as_ref().join(format!("{}-key-{}.asc", kind, &id))
+    };
+    info!(context, "Exporting key {}", file_name.display());
+    dc_delete_file(context, &file_name);
+
+    let res = key.write_asc_to_file(&file_name, context);
+    if res.is_err() {
+        error!(context, "Cannot write key to {}", file_name.display());
+    } else {
+        context.call_cb(Event::ImexFileWritten(file_name));
+    }
+    res
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    use crate::pgp::{split_armored_data, HEADER_AUTOCRYPT, HEADER_SETUPCODE};
+    use crate::test_utils::*;
+    use ::pgp::armor::BlockType;
+
+    #[test]
+    fn test_render_setup_file() {
+        let t = test_context(Some(Box::new(logging_cb)));
+
+        configure_alice_keypair(&t.ctx);
+        let msg = render_setup_file(&t.ctx, "hello").unwrap();
+        println!("{}", &msg);
+        // Check some substrings, indicating things got substituted.
+        // In particular note the mixing of `\r\n` and `\n` depending
+        // on who generated the stings.
+        assert!(msg.contains("<title>Autocrypt Setup Message</title"));
+        assert!(msg.contains("<h1>Autocrypt Setup Message</h1>"));
+        assert!(msg.contains("<p>This is the Autocrypt Setup Message used to"));
+        assert!(msg.contains("-----BEGIN PGP MESSAGE-----\r\n"));
+        assert!(msg.contains("Passphrase-Format: numeric9x4\r\n"));
+        assert!(msg.contains("Passphrase-Begin: he\n"));
+        assert!(msg.contains("==\n"));
+        assert!(msg.contains("-----END PGP MESSAGE-----\n"));
+    }
+
+    #[test]
+    fn test_render_setup_file_newline_replace() {
+        let t = dummy_context();
+        t.ctx
+            .set_stock_translation(StockMessage::AcSetupMsgBody, "hello\r\nthere".to_string())
+            .unwrap();
+        configure_alice_keypair(&t.ctx);
+        let msg = render_setup_file(&t.ctx, "pw").unwrap();
+        println!("{}", &msg);
+        assert!(msg.contains("<p>hello<br>there</p>"));
+    }
+
+    #[test]
+    fn test_create_setup_code() {
+        let t = dummy_context();
+        let setupcode = create_setup_code(&t.ctx);
+        assert_eq!(setupcode.len(), 44);
+        assert_eq!(setupcode.chars().nth(4).unwrap(), '-');
+        assert_eq!(setupcode.chars().nth(9).unwrap(), '-');
+        assert_eq!(setupcode.chars().nth(14).unwrap(), '-');
+        assert_eq!(setupcode.chars().nth(19).unwrap(), '-');
+        assert_eq!(setupcode.chars().nth(24).unwrap(), '-');
+        assert_eq!(setupcode.chars().nth(29).unwrap(), '-');
+        assert_eq!(setupcode.chars().nth(34).unwrap(), '-');
+        assert_eq!(setupcode.chars().nth(39).unwrap(), '-');
+    }
+
+    #[test]
+    fn test_export_key_to_asc_file() {
+        let context = dummy_context();
+        let base64 = include_str!("../test-data/key/public.asc");
+        let key = Key::from_base64(base64, KeyType::Public).unwrap();
+        let blobdir = "$BLOBDIR";
+        assert!(export_key_to_asc_file(&context.ctx, blobdir, None, &key).is_ok());
+        let blobdir = context.ctx.get_blobdir().to_str().unwrap();
+        let filename = format!("{}/public-key-default.asc", blobdir);
+        let bytes = std::fs::read(&filename).unwrap();
+
+        assert_eq!(bytes, key.to_asc(None).into_bytes());
+    }
+
+    #[test]
+    fn test_normalize_setup_code() {
+        let norm = normalize_setup_code("123422343234423452346234723482349234");
+        assert_eq!(norm, "1234-2234-3234-4234-5234-6234-7234-8234-9234");
+
+        let norm =
+            normalize_setup_code("\t1 2 3422343234- foo bar-- 423-45 2 34 6234723482349234      ");
+        assert_eq!(norm, "1234-2234-3234-4234-5234-6234-7234-8234-9234");
+    }
+
+    /* S_EM_SETUPFILE is a AES-256 symm. encrypted setup message created by Enigmail
+    with an "encrypted session key", see RFC 4880.  The code is in S_EM_SETUPCODE */
+    const S_EM_SETUPCODE: &str = "1742-0185-6197-1303-7016-8412-3581-4441-0597";
+    const S_EM_SETUPFILE: &str = include_str!("../test-data/message/stress.txt");
+
+    #[test]
+    fn test_split_and_decrypt() {
+        let ctx = dummy_context();
+        let context = &ctx.ctx;
+
+        let buf_1 = S_EM_SETUPFILE.as_bytes().to_vec();
+        let (typ, headers, base64) = split_armored_data(&buf_1).unwrap();
+        assert_eq!(typ, BlockType::Message);
+        assert!(S_EM_SETUPCODE.starts_with(headers.get(HEADER_SETUPCODE).unwrap()));
+        assert!(headers.get(HEADER_AUTOCRYPT).is_none());
+
+        assert!(!base64.is_empty());
+
+        let setup_file = S_EM_SETUPFILE.to_string();
+        let decrypted = decrypt_setup_file(
+            context,
+            S_EM_SETUPCODE,
+            std::io::Cursor::new(setup_file.as_bytes()),
+        )
+        .unwrap();
+
+        let (typ, headers, _base64) = split_armored_data(decrypted.as_bytes()).unwrap();
+
+        assert_eq!(typ, BlockType::PrivateKey);
+        assert_eq!(headers.get(HEADER_AUTOCRYPT), Some(&"mutual".to_string()));
+        assert!(headers.get(HEADER_SETUPCODE).is_none());
+    }
+}