fix a few more places that used format! with sql-queries -- although they are all probably not critical

This reverts commit b424ef9ebb.

.circleci/config.yml

@@ -36,12 +36,6 @@ 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-v3-{{ checksum "rust-toolchain" }}-{{ checksum "Cargo.toml" }}-{{ checksum "Cargo.lock" }}-{{ arch }}
@@ -49,7 +43,6 @@ jobs:
       - 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
@@ -91,7 +84,6 @@ 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
@@ -187,7 +179,7 @@ jobs:
       - *restore-cache
       - run:
           name: Run cargo clippy
-          command: cargo clippy --all
+          command: cargo clippy 
 
 
 workflows:
@@ -195,7 +187,7 @@ workflows:
 
   test:
     jobs:
-      - cargo_fetch
+      # - cargo_fetch
 
       - remote_tests_rust
 
@@ -205,12 +197,12 @@ workflows:
       #     requires:
       #       - build_test_docs_wheel
       #       - build_doxygen
-      - rustfmt:
-          requires:
-            - cargo_fetch
-      - clippy:
-          requires:
-           - cargo_fetch
+      # - rustfmt:
+      #     requires:
+      #       - cargo_fetch
+      # - clippy:
+      #     requires:
+      #      - cargo_fetch
 
       - build_doxygen
 

.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

CHANGELOG.md

@@ -1,8 +1,71 @@
 # Changelog 
 
-## next (pending)
+## 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
 
-- restructured (but not change) imap idle handling into own file. cc @link2xt
 
 ## 1.0.0-beta.12
 

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "deltachat"
-version = "1.0.0-beta.12"
+version = "1.0.0-beta.16"
 authors = ["Delta Chat Developers (ML) <delta@codespeak.net>"]
 edition = "2018"
 license = "MPL"
@@ -9,18 +9,19 @@ license = "MPL"
 deltachat_derive = { path = "./deltachat_derive" }
 
 libc = "0.2.51"
-pgp = { git = "https://github.com/rpgp/rpgp", branch = "master", default-features = false }
+pgp = { version = "0.4.0", default-features = false }
 hex = "0.4.0"
 sha2 = "0.8.0"
-rand = "0.6.5"
-smallvec = "0.6.9"
-reqwest = { version = "0.9.15", default-features = false, features = ["rustls-tls"] }
-num-derive = "0.2.5"
+rand = "0.7.0"
+smallvec = "1.0.0"
+reqwest = { version = "0.9.15" }
+num-derive = "0.3.0"
 num-traits = "0.2.6"
-lettre = { git = "https://github.com/deltachat/lettre", branch = "feat/mail" }
-lettre_email = { git = "https://github.com/deltachat/lettre", branch = "feat/mail" }
-async-imap = { git = "https://github.com/async-email/async-imap", branch="master" }
-async-tls = "0.6"
+async-smtp = { git = "https://github.com/async-email/async-smtp", branch = "master" }
+email = { git = "https://github.com/deltachat/rust-email", branch = "master" }
+lettre_email = { git = "https://github.com/deltachat/lettre", branch = "native_tls" }
+async-imap = { git = "https://github.com/async-email/async-imap", branch="native_tls", default-features = false, features = ["tls_native"] }
+async-native-tls = "0.1.1"
 async-std = { version = "1.0", features = ["unstable"] }
 base64 = "0.11"
 charset = "0.1"
@@ -30,6 +31,7 @@ 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"
@@ -44,17 +46,15 @@ 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"
 debug_stub_derive = "0.3.0"
 sanitize-filename = "0.2.1"
 stop-token = { version = "0.1.1", features = ["unstable"] }
-rustls = "0.16.0"
-webpki-roots = "0.18.0"
-webpki = "0.21.0"
 mailparse = "0.10.1"
 encoded-words = { git = "https://github.com/async-email/encoded-words", branch="master" }
+native-tls = "0.2.3"
 
 [dev-dependencies]
 tempfile = "3.0"
@@ -79,6 +79,6 @@ path = "examples/repl/main.rs"
 
 [features]
 default = ["nightly", "ringbuf"]
-vendored = []
+vendored = ["native-tls/vendored", "reqwest/default-tls-vendored"]
 nightly = ["pgp/nightly"]
 ringbuf = ["pgp/ringbuf"]

appveyor.yml

@@ -8,7 +8,6 @@ install:
   - set PATH=%PATH%;%USERPROFILE%\.cargo\bin
   - rustc -vV
   - cargo -vV
-  - cargo update
 
 build: false
 

deltachat-ffi/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "deltachat_ffi"
-version = "1.0.0-beta.12"
+version = "1.0.0-beta.16"
 description = "Deltachat FFI"
 authors = ["Delta Chat Developers (ML) <delta@codespeak.net>"]
 edition = "2018"

deltachat-ffi/deltachat.h

@@ -3645,11 +3645,15 @@ int             dc_contact_is_blocked        (const dc_contact_t* contact);
 
 
 /**
- * Same as dc_contact_is_verified() but allows speeding up things
- * by adding the peerstate belonging to the contact.
- * If you do not have the peerstate available, it is loaded automatically.
+ * Check if a contact was verified. E.g. by a secure-join QR code scan
+ * and if the key has not changed since this verification.
  *
- * @private @memberof dc_context_t
+ * The UI may draw a checkbox or something like that beside verified contacts.
+ *
+ * @memberof dc_contact_t
+ * @param contact The contact object.
+ * @return 0: contact is not verified.
+ *    2: SELF and contact have verified their fingerprints in both directions; in the UI typically checkmarks are shown.
  */
 int             dc_contact_is_verified       (dc_contact_t* contact);
 
@@ -4050,11 +4054,6 @@ int64_t          dc_lot_get_timestamp     (const dc_lot_t* lot);
  */
 #define DC_CERTCK_STRICT 1
 
-/**
- * Accept invalid hostnames, but not invalid certificates.
- */
-#define DC_CERTCK_ACCEPT_INVALID_HOSTNAMES 2
-
 /**
  * Accept invalid certificates, including self-signed ones
  * or having incorrect hostname.

deltachat-ffi/src/lib.rs

@@ -29,6 +29,8 @@ use deltachat::message::MsgId;
 use deltachat::stock::StockMessage;
 use deltachat::*;
 
+mod dc_array;
+
 mod string;
 use self::string::*;
 

examples/repl/cmdline.rs

@@ -94,7 +94,9 @@ pub fn dc_reset_tables(context: &Context, bits: i32) -> i32 {
 fn dc_poke_eml_file(context: &Context, filename: impl AsRef<Path>) -> Result<(), Error> {
     let data = dc_read_file(context, filename)?;
 
-    dc_receive_imf(context, &data, "import", 0, 0);
+    if let Err(err) = dc_receive_imf(context, &data, "import", 0, 0) {
+        println!("dc_receive_imf errored: {:?}", err);
+    }
     Ok(())
 }
 
@@ -936,7 +938,14 @@ pub fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::Error> {
             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)?;
 

python/src/deltachat/account.py

@@ -3,6 +3,7 @@
 from __future__ import print_function
 import atexit
 import threading
+import os
 import re
 import time
 from array import array
@@ -94,9 +95,12 @@ 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):
@@ -132,6 +136,18 @@ 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():

python/src/deltachat/chat.py

@@ -109,6 +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.
 
@@ -130,9 +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.
@@ -142,9 +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.

python/src/deltachat/const.py

@@ -68,7 +68,6 @@ DC_LP_SMTP_SOCKET_SSL = 0x20000
 DC_LP_SMTP_SOCKET_PLAIN = 0x40000
 DC_CERTCK_AUTO = 0
 DC_CERTCK_STRICT = 1
-DC_CERTCK_ACCEPT_INVALID_HOSTNAMES = 2
 DC_CERTCK_ACCEPT_INVALID_CERTIFICATES = 3
 DC_EMPTY_MVBOX = 0x01
 DC_EMPTY_INBOX = 0x02

python/src/deltachat/contact.py

@@ -47,3 +47,13 @@ class Contact(object):
     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

@@ -174,7 +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/tests/conftest.py

@@ -85,16 +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)

python/tests/test_account.py

@@ -382,6 +382,23 @@ 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, both_created=False):
@@ -456,10 +473,7 @@ class TestOnlineAccount:
             msg1 = Message.new_empty(ac1, "file")
             msg1.set_text("withfile")
             msg1.set_file(p)
-            message = chat.prepare_message(msg1)
-            assert message.is_out_preparing()
-            assert message.text == "withfile"
-            chat.send_prepared(message)
+            chat.send_msg(msg1)
 
             lp.sec("ac2: receive message")
             ev = ac2._evlogger.get_matching("DC_EVENT_INCOMING_MSG|DC_EVENT_MSGS_CHANGED")
@@ -618,6 +632,9 @@ class TestOnlineAccount:
     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)
 
@@ -635,6 +652,7 @@ class TestOnlineAccount:
         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
@@ -697,6 +715,12 @@ class TestOnlineAccount:
         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")))
@@ -958,7 +982,54 @@ class TestOnlineAccount:
         assert msg.text == "world"
         assert msg.is_encrypted()
 
-    def test_set_get_profile_image(self, acfactory, data, lp):
+    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")
@@ -1060,6 +1131,52 @@ class TestOnlineAccount:
         assert not locations3
 
 
+class TestGroupStressTests:
+    def test_group_many_members_add_leave_remove(self, acfactory, lp):
+        lp.sec("creating and configuring five accounts")
+        ac1 = acfactory.get_online_configuring_account()
+        accounts = [acfactory.get_online_configuring_account() for i in range(3)]
+        wait_configuration_progress(ac1, 1000)
+        for acc in accounts:
+            wait_configuration_progress(acc, 1000)
+
+        lp.sec("ac1: creating group chat with 3 other members")
+        chat = ac1.create_group_chat("title1")
+        contacts = []
+        chars = list("äöüsr")
+        for acc in accounts:
+            contact = ac1.create_contact(acc.get_config("addr"), name=chars.pop())
+            contacts.append(contact)
+            chat.add_contact(contact)
+            # make sure the other side accepts our messages
+            c1 = acc.create_contact(ac1.get_config("addr"), "ä member")
+            acc.create_chat_by_contact(c1)
+
+        assert not chat.is_promoted()
+
+        lp.sec("ac1: send mesage to new group chat")
+        chat.send_text("hello")
+        assert chat.is_promoted()
+
+        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("ac1: removing one contacts and checking things are right")
+        to_remove = msg.chat.get_contacts()[-1]
+        msg.chat.remove_contact(to_remove)
+
+        sysmsg = ac1.wait_next_incoming_message()
+        assert to_remove.addr in sysmsg.text
+        assert len(sysmsg.chat.get_contacts()) == 3
+
+
 class TestOnlineConfigureFails:
     def test_invalid_password(self, acfactory):
         ac1, configdict = acfactory.get_online_config()

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 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 TestOnlineInCreation:
         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 TestOnlineInCreation:
 
         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)
@@ -59,11 +102,11 @@ class TestOnlineInCreation:
         ev1 = ac2._evlogger.get_matching("DC_EVENT_MSGS_CHANGED")
         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] != 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/tox.ini

@@ -65,8 +65,8 @@ commands =
 
 
 [pytest]
-addopts = -v -rs 
-python_files = tests/test_*.py 
+addopts = -v -ra
+python_files = tests/test_*.py
 norecursedirs = .tox 
 xfail_strict=true
 timeout = 60 

set_core_version.py

@@ -55,7 +55,8 @@ if __name__ == "__main__":
     replace_toml_version("Cargo.toml", newversion)
     replace_toml_version("deltachat-ffi/Cargo.toml", newversion)
 
-    subprocess.call(["cargo", "update", "-p", "deltachat"])
+    subprocess.call(["git", "add", "-u"])
+    # subprocess.call(["cargo", "update", "-p", "deltachat"])
 
     print("after commit make sure to: ")
     print("")

spec.md

@@ -1,6 +1,6 @@
 # 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
@@ -248,11 +248,11 @@ and the message SHOULD appear as a message or action from the sender.
 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`
+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`.
+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
@@ -265,7 +265,7 @@ and the message SHOULD appear as a message or action from the sender.
     Chat-Version: 1.0
     Chat-Group-ID: 12345uvwxyZ
     Chat-Group-Name: Our Group
-    Chat-Group-Image: image.jpg
+    Chat-Group-Avatar: image.jpg
     Message-ID: Gr.12345uvwxyZ.0005@domain
     Subject: Chat: Our Group: Hello, ...
     Content-Type: multipart/mixed; boundary="==break=="
@@ -283,25 +283,25 @@ and the message SHOULD appear as a message or action from the sender.
 
 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.
+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.
+A user MAY have a profile-image that MAY be spread 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-Profile-Image`
+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`.
+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).
+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.
@@ -309,7 +309,7 @@ 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=="
 
@@ -325,10 +325,10 @@ The messenger SHOULD NOT send an explicit mail to normal MUAs.
     --==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
+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-Profile-Image` header
+To save data, it is RECOMMENDED to add a `Chat-User-Avatar` header
 only on image changes.
 
 

src/blob.rs

@@ -159,7 +159,7 @@ impl<'a> BlobObject<'a> {
     /// This merely delegates to the [BlobObject::create_and_copy] and
     /// the [BlobObject::from_path] methods.  See those for possible
     /// errors.
-    pub fn create_from_path(
+    pub fn new_from_path(
         context: &Context,
         src: impl AsRef<Path>,
     ) -> std::result::Result<BlobObject, BlobError> {
@@ -559,14 +559,14 @@ mod tests {
 
         let src_ext = t.dir.path().join("external");
         fs::write(&src_ext, b"boo").unwrap();
-        let blob = BlobObject::create_from_path(&t.ctx, &src_ext).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::create_from_path(&t.ctx, &src_int).unwrap();
+        let blob = BlobObject::new_from_path(&t.ctx, &src_int).unwrap();
         assert_eq!(blob.as_name(), "$BLOBDIR/internal");
         let data = fs::read(blob.to_abs_path()).unwrap();
         assert_eq!(data, b"boo");
@@ -576,7 +576,7 @@ mod tests {
         let t = dummy_context();
         let src_ext = t.dir.path().join("autocrypt-setup-message-4137848473.html");
         fs::write(&src_ext, b"boo").unwrap();
-        let blob = BlobObject::create_from_path(&t.ctx, &src_ext).unwrap();
+        let blob = BlobObject::new_from_path(&t.ctx, &src_ext).unwrap();
         assert_eq!(
             blob.as_name(),
             "$BLOBDIR/autocrypt-setup-message-4137848473.html"

src/chat.rs

@@ -35,7 +35,6 @@ pub struct Chat {
     pub grpid: String,
     blocked: Blocked,
     pub param: Params,
-    pub gossiped_timestamp: i64,
     is_sending_locations: bool,
 }
 
@@ -44,7 +43,7 @@ impl Chat {
     pub fn load_from_db(context: &Context, chat_id: u32) -> Result<Self, Error> {
         let res = context.sql.query_row(
             "SELECT c.id,c.type,c.name, c.grpid,c.param,c.archived, \
-             c.blocked, c.gossiped_timestamp, c.locations_send_until  \
+             c.blocked, c.locations_send_until  \
              FROM chats c WHERE c.id=?;",
             params![chat_id as i32],
             |row| {
@@ -56,8 +55,7 @@ impl Chat {
                     param: row.get::<_, String>(4)?.parse().unwrap_or_default(),
                     archived: row.get(5)?,
                     blocked: row.get::<_, Option<_>>(6)?.unwrap_or_default(),
-                    gossiped_timestamp: row.get(7)?,
-                    is_sending_locations: row.get(8)?,
+                    is_sending_locations: row.get(7)?,
                 };
 
                 Ok(c)
@@ -216,6 +214,10 @@ impl Chat {
         None
     }
 
+    pub fn get_gossiped_timestamp(&self, context: &Context) -> i64 {
+        get_gossiped_timestamp(context, self.id)
+    }
+
     pub fn get_color(&self, context: &Context) -> u32 {
         let mut color = 0;
 
@@ -310,10 +312,10 @@ impl Chat {
                         self.id
                     );
                 }
-            } else if self.typ == Chattype::Group
-                || self.typ == Chattype::VerifiedGroup
-                    && self.param.get_int(Param::Unpromoted).unwrap_or_default() == 1
+            } else if (self.typ == Chattype::Group || self.typ == Chattype::VerifiedGroup)
+                && self.param.get_int(Param::Unpromoted).unwrap_or_default() == 1
             {
+                msg.param.set_int(Param::AttachGroupImage, 1);
                 self.param.remove(Param::Unpromoted);
                 self.update_param(context)?;
             }
@@ -593,12 +595,6 @@ pub fn set_blocking(context: &Context, chat_id: u32, new_blocking: Blocked) -> b
     .is_ok()
 }
 
-fn copy_device_icon_to_blobs(context: &Context) -> Result<String, Error> {
-    let icon = include_bytes!("../assets/icon-device.png");
-    let blob = BlobObject::create(context, "icon-device.png".to_string(), icon)?;
-    Ok(blob.as_name().to_string())
-}
-
 pub fn update_saved_messages_icon(context: &Context) -> Result<(), Error> {
     // if there is no saved-messages chat, there is nothing to update. this is no error.
     if let Ok((chat_id, _)) = lookup_by_contact_id(context, DC_CONTACT_ID_SELF) {
@@ -613,6 +609,24 @@ pub fn update_saved_messages_icon(context: &Context) -> Result<(), Error> {
     Ok(())
 }
 
+pub fn update_device_icon(context: &Context) -> Result<(), Error> {
+    // if there is no device-chat, there is nothing to update. this is no error.
+    if let Ok((chat_id, _)) = lookup_by_contact_id(context, DC_CONTACT_ID_DEVICE) {
+        let icon = include_bytes!("../assets/icon-device.png");
+        let blob = BlobObject::create(context, "icon-device.png".to_string(), icon)?;
+        let icon = blob.as_name().to_string();
+
+        let mut chat = Chat::load_from_db(context, chat_id)?;
+        chat.param.set(Param::ProfileImage, &icon);
+        chat.update_param(context)?;
+
+        let mut contact = Contact::load_from_db(context, DC_CONTACT_ID_DEVICE)?;
+        contact.param.set(Param::ProfileImage, icon);
+        contact.update_param(context)?;
+    }
+    Ok(())
+}
+
 pub fn create_or_lookup_by_contact_id(
     context: &Context,
     contact_id: u32,
@@ -638,10 +652,7 @@ pub fn create_or_lookup_by_contact_id(
             chat_name,
             match contact_id {
                 DC_CONTACT_ID_SELF => "K=1".to_string(), // K = Param::Selftalk
-                DC_CONTACT_ID_DEVICE => {
-                    let icon = copy_device_icon_to_blobs(context)?;
-                    format!("D=1\ni={}", icon) // D = Param::Devicetalk, i = Param::ProfileImage
-                },
+                DC_CONTACT_ID_DEVICE => "D=1".to_string(), // D = Param::Devicetalk
                 _ => "".to_string()
             },
             create_blocked as u8,
@@ -665,6 +676,8 @@ pub fn create_or_lookup_by_contact_id(
 
     if contact_id == DC_CONTACT_ID_SELF {
         update_saved_messages_icon(context)?;
+    } else if contact_id == DC_CONTACT_ID_DEVICE {
+        update_device_icon(context)?;
     }
 
     Ok((chat_id, create_blocked))
@@ -725,20 +738,11 @@ fn prepare_msg_blob(context: &Context, msg: &mut Message) -> Result<(), Error> {
     if msg.type_0 == Viewtype::Text {
         // the caller should check if the message text is empty
     } else if msgtype_has_file(msg.type_0) {
-        let blob = if let Some(f) = msg.param.get_file(Param::File, context)? {
-            match f {
-                ParamsFile::Blob(blob) => blob,
-                ParamsFile::FsPath(path) => {
-                    // path is outside the blobdir, let's copy
-                    let blob = BlobObject::create_and_copy(context, path)?;
-                    msg.param.set(Param::File, blob.as_name());
-
-                    blob
-                }
-            }
-        } else {
-            bail!("Attachment missing for message of type #{}", msg.type_0);
-        };
+        let blob = msg
+            .param
+            .get_blob(Param::File, context, !msg.is_increation())?
+            .ok_or_else(|| format_err!("Attachment missing for message of type #{}", msg.type_0))?;
+        msg.param.set(Param::File, blob.as_name());
 
         if msg.type_0 == Viewtype::File || msg.type_0 == Viewtype::Image {
             // Correct the type, take care not to correct already very special
@@ -1463,7 +1467,7 @@ pub(crate) fn add_contact_to_chat_ex(
     let contact = Contact::get_by_id(context, contact_id)?;
     let mut msg = Message::default();
 
-    reset_gossiped_timestamp(context, chat_id);
+    reset_gossiped_timestamp(context, chat_id)?;
 
     /*this also makes sure, not contacts are added to special or normal chats*/
     let mut chat = Chat::load_from_db(context, chat_id)?;
@@ -1561,12 +1565,28 @@ fn real_group_exists(context: &Context, chat_id: u32) -> bool {
         .unwrap_or_default()
 }
 
-pub fn reset_gossiped_timestamp(context: &Context, chat_id: u32) {
-    set_gossiped_timestamp(context, chat_id, 0);
+pub fn reset_gossiped_timestamp(context: &Context, chat_id: u32) -> crate::sql::Result<()> {
+    set_gossiped_timestamp(context, chat_id, 0)
 }
 
-// Should return Result
-pub fn set_gossiped_timestamp(context: &Context, chat_id: u32, timestamp: i64) {
+/// Get timestamp of the last gossip sent in the chat.
+/// Zero return value means that gossip was never sent.
+pub fn get_gossiped_timestamp(context: &Context, chat_id: u32) -> i64 {
+    context
+        .sql
+        .query_get_value::<_, i64>(
+            context,
+            "SELECT gossiped_timestamp FROM chats WHERE id=?;",
+            params![chat_id as i32],
+        )
+        .unwrap_or_default()
+}
+
+pub fn set_gossiped_timestamp(
+    context: &Context,
+    chat_id: u32,
+    timestamp: i64,
+) -> crate::sql::Result<()> {
     if 0 != chat_id {
         info!(
             context,
@@ -1579,7 +1599,6 @@ pub fn set_gossiped_timestamp(context: &Context, chat_id: u32, timestamp: i64) {
             "UPDATE chats SET gossiped_timestamp=? WHERE id=?;",
             params![timestamp, chat_id as i32],
         )
-        .ok();
     } else {
         info!(
             context,
@@ -1591,10 +1610,58 @@ pub fn set_gossiped_timestamp(context: &Context, chat_id: u32, timestamp: i64) {
             "UPDATE chats SET gossiped_timestamp=?;",
             params![timestamp],
         )
-        .ok();
     }
 }
 
+pub fn shall_attach_selfavatar(context: &Context, chat_id: u32) -> Result<bool, Error> {
+    // versions before 12/2019 already allowed to set selfavatar, however, it was never sent to others.
+    // to avoid sending out previously set selfavatars unexpectedly we added this additional check.
+    // it can be removed after some time.
+    if !context
+        .sql
+        .get_raw_config_bool(context, "attach_selfavatar")
+    {
+        return Ok(false);
+    }
+
+    let timestamp_some_days_ago = time() - DC_RESEND_USER_AVATAR_DAYS * 24 * 60 * 60;
+    let needs_attach = context.sql.query_map(
+        "SELECT c.selfavatar_sent
+           FROM chats_contacts cc
+           LEFT JOIN contacts c ON c.id=cc.contact_id
+          WHERE cc.chat_id=? AND cc.contact_id!=?;",
+        params![chat_id, DC_CONTACT_ID_SELF],
+        |row| Ok(row.get::<_, i64>(0)),
+        |rows| {
+            let mut needs_attach = false;
+            for row in rows {
+                if let Ok(selfavatar_sent) = row {
+                    let selfavatar_sent = selfavatar_sent?;
+                    if selfavatar_sent < timestamp_some_days_ago {
+                        needs_attach = true;
+                    }
+                }
+            }
+            Ok(needs_attach)
+        },
+    )?;
+    Ok(needs_attach)
+}
+
+pub fn set_selfavatar_timestamp(
+    context: &Context,
+    chat_id: u32,
+    timestamp: i64,
+) -> Result<(), Error> {
+    context.sql.execute(
+        "UPDATE contacts
+            SET selfavatar_sent=?
+          WHERE id IN(SELECT contact_id FROM chats_contacts WHERE chat_id=?);",
+        params![timestamp, chat_id],
+    )?;
+    Ok(())
+}
+
 pub fn remove_contact_from_chat(
     context: &Context,
     chat_id: u32,
@@ -1848,11 +1915,8 @@ pub fn forward_msgs(context: &Context, msg_ids: &[MsgId], chat_id: u32) -> Resul
         ensure!(chat.can_send(), "cannot send to chat #{}", chat_id);
         curr_timestamp = dc_create_smeared_timestamps(context, msg_ids.len());
         let ids = context.sql.query_map(
-            format!(
-                "SELECT id FROM msgs WHERE id IN({}) ORDER BY timestamp,id",
-                msg_ids.iter().map(|_| "?").join(",")
-            ),
-            msg_ids,
+            "SELECT id FROM msgs WHERE id IN({}) ORDER BY timestamp,id",
+            params![msg_ids.iter().map(|_| "?").join(",")],
             |row| row.get::<_, MsgId>(0),
             |ids| ids.collect::<Result<Vec<_>, _>>().map_err(Into::into),
         )?;
@@ -1951,7 +2015,7 @@ pub fn get_info_json(context: &Context, chat_id: u32) -> Result<String, Error> {
          "name": chat.name,
          "archived": chat.archived,
          "param": chat.param.to_string(),
-         "gossiped_timestamp": chat.gossiped_timestamp,
+         "gossiped_timestamp": chat.get_gossiped_timestamp(context),
          "is_sending_locations": chat.is_sending_locations,
          "color": chat.get_color(context),
          "profile_image": profile_image,
@@ -2412,4 +2476,42 @@ mod tests {
             "bar"
         );
     }
+
+    #[test]
+    fn test_create_same_chat_twice() {
+        let context = dummy_context();
+        let contact1 = Contact::create(&context.ctx, "bob", "bob@mail.de").unwrap();
+        assert_ne!(contact1, 0);
+
+        let chat_id = create_by_contact_id(&context.ctx, contact1).unwrap();
+        assert!(
+            chat_id > DC_CHAT_ID_LAST_SPECIAL,
+            "chat_id too small {}",
+            chat_id
+        );
+        let chat = Chat::load_from_db(&context.ctx, chat_id).unwrap();
+
+        let chat2_id = create_by_contact_id(&context.ctx, contact1).unwrap();
+        assert_eq!(chat2_id, chat_id);
+        let chat2 = Chat::load_from_db(&context.ctx, chat2_id).unwrap();
+
+        assert_eq!(chat2.name, chat.name);
+    }
+
+    #[test]
+    fn test_shall_attach_selfavatar() {
+        let t = dummy_context();
+        let chat_id = create_group_chat(&t.ctx, VerifiedStatus::Unverified, "foo").unwrap();
+        assert!(!shall_attach_selfavatar(&t.ctx, chat_id).unwrap());
+
+        let (contact_id, _) =
+            Contact::add_or_lookup(&t.ctx, "", "foo@bar.org", Origin::IncomingUnknownTo).unwrap();
+        add_contact_to_chat(&t.ctx, chat_id, contact_id);
+        assert!(!shall_attach_selfavatar(&t.ctx, chat_id).unwrap());
+        t.ctx.set_config(Config::Selfavatar, None).unwrap(); // setting to None also forces re-sending
+        assert!(shall_attach_selfavatar(&t.ctx, chat_id).unwrap());
+
+        assert!(set_selfavatar_timestamp(&t.ctx, chat_id, time()).is_ok());
+        assert!(!shall_attach_selfavatar(&t.ctx, chat_id).unwrap());
+    }
 }

src/config.rs

@@ -9,6 +9,7 @@ use crate::context::Context;
 use crate::dc_tools::*;
 use crate::job::*;
 use crate::stock::StockMessage;
+use rusqlite::NO_PARAMS;
 
 /// The available configuration keys.
 #[derive(
@@ -127,9 +128,18 @@ impl Context {
     /// 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>) -> crate::sql::Result<()> {
         match key {
-            Config::Selfavatar if value.is_some() => {
-                let blob = BlobObject::create_from_path(&self, value.unwrap())?;
-                self.sql.set_raw_config(self, key, Some(blob.as_name()))
+            Config::Selfavatar => {
+                self.sql
+                    .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)?;
+                        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_raw_config(self, key, value);

src/configure/mod.rs

@@ -12,7 +12,7 @@ use crate::context::Context;
 use crate::dc_tools::*;
 use crate::e2ee;
 use crate::job::*;
-use crate::login_param::LoginParam;
+use crate::login_param::{CertificateChecks, LoginParam};
 use crate::oauth2::*;
 use crate::param::Params;
 
@@ -92,9 +92,11 @@ pub fn JobConfigureImap(context: &Context) {
     let mut param_domain = "undefined.undefined".to_owned();
     let mut param_addr_urlencoded: String =
         "Internal Error: this value should never be used".to_owned();
-    let mut keep_flags = std::i32::MAX;
+    let mut keep_flags = 0;
+
+    const STEP_12_USE_AUTOCONFIG: u8 = 12;
+    const STEP_13_AFTER_AUTOCONFIG: u8 = 13;
 
-    const STEP_3_INDEX: u8 = 13;
     let mut step_counter: u8 = 0;
     while !context.shall_stop_ongoing() {
         step_counter += 1;
@@ -110,7 +112,7 @@ pub fn JobConfigureImap(context: &Context) {
             }
             // Step 1: Load the parameters and check email-address and password
             2 => {
-                if 0 != param.server_flags & 0x2 {
+                if 0 != param.server_flags & DC_LP_AUTH_OAUTH2 {
                     // the used oauth2 addr may differ, check this.
                     // if dc_get_oauth2_addr() is not available in the oauth2 implementation,
                     // just use the given one.
@@ -145,6 +147,7 @@ pub fn JobConfigureImap(context: &Context) {
             // Step 2: Autoconfig
             4 => {
                 progress!(context, 200);
+
                 if param.mail_server.is_empty()
                             && param.mail_port == 0
                             /*&&param.mail_user.is_empty() -- the user can enter a loginname which is used by autoconfig then */
@@ -152,12 +155,18 @@ pub fn JobConfigureImap(context: &Context) {
                             && param.send_port == 0
                             && param.send_user.is_empty()
                             /*&&param.send_pw.is_empty() -- the password cannot be auto-configured and is no criterion for autoconfig or not */
-                            && param.server_flags & !0x2 == 0
+                            && (param.server_flags & !DC_LP_AUTH_OAUTH2) == 0
                 {
-                    keep_flags = param.server_flags & 0x2;
+                    // no advanced parameters entered by the user: query provider-database or do Autoconfig
+                    keep_flags = param.server_flags & DC_LP_AUTH_OAUTH2;
+                    if let Some(new_param) = get_offline_autoconfig(context, &param) {
+                        // got parameters from our provider-database, skip Autoconfig, preserve the OAuth2 setting
+                        param_autoconfig = Some(new_param);
+                        step_counter = STEP_12_USE_AUTOCONFIG - 1; // minus one as step_counter is increased on next loop
+                    }
                 } else {
-                    // Autoconfig is not needed so skip it.
-                    step_counter = STEP_3_INDEX - 1;
+                    // advanced parameters entered by the user: skip Autoconfig
+                    step_counter = STEP_13_AFTER_AUTOCONFIG - 1; // minus one as step_counter is increased on next loop
                 }
                 true
             }
@@ -242,8 +251,10 @@ pub fn JobConfigureImap(context: &Context) {
                 }
                 true
             }
-            /* C.  Do we have any result? */
-            12 => {
+            /* C.  Do we have any autoconfig result?
+               If you change the match-number here, also update STEP_12_COPY_AUTOCONFIG above
+            */
+            STEP_12_USE_AUTOCONFIG => {
                 progress!(context, 500);
                 if let Some(ref cfg) = param_autoconfig {
                     info!(context, "Got autoconfig: {}", &cfg);
@@ -256,15 +267,15 @@ pub fn JobConfigureImap(context: &Context) {
                     param.send_port = cfg.send_port;
                     param.send_user = cfg.send_user.clone();
                     param.server_flags = cfg.server_flags;
-                    /* although param_autoconfig's data are no longer needed from, it is important to keep the object as
-                    we may enter "deep guessing" if we could not read a configuration */
+                    /* although param_autoconfig's data are no longer needed from,
+                    it is used to later to prevent trying variations of port/server/logins */
                 }
                 param.server_flags |= keep_flags;
                 true
             }
             // Step 3: Fill missing fields with defaults
-            13 => {
-                // if you move this, don't forget to update STEP_3_INDEX, too
+            // If you change the match-number here, also update STEP_13_AFTER_AUTOCONFIG above
+            STEP_13_AFTER_AUTOCONFIG => {
                 if param.mail_server.is_empty() {
                     param.mail_server = format!("imap.{}", param_domain,)
                 }
@@ -430,6 +441,42 @@ pub fn JobConfigureImap(context: &Context) {
     progress!(context, if success { 1000 } else { 0 });
 }
 
+fn get_offline_autoconfig(context: &Context, param: &LoginParam) -> Option<LoginParam> {
+    // XXX we don't have https://github.com/deltachat/provider-db  APIs
+    // integrated yet but we'll already add nauta as a first use case, also
+    // showing what we need from provider-db in the future.
+    info!(
+        context,
+        "checking internal provider-info for offline autoconfig"
+    );
+
+    if param.addr.ends_with("@nauta.cu") {
+        let mut p = LoginParam::new();
+
+        p.addr = param.addr.clone();
+        p.mail_server = "imap.nauta.cu".to_string();
+        p.mail_user = param.addr.clone();
+        p.mail_pw = param.mail_pw.clone();
+        p.mail_port = 143;
+        p.imap_certificate_checks = CertificateChecks::AcceptInvalidCertificates;
+
+        p.send_server = "smtp.nauta.cu".to_string();
+        p.send_user = param.addr.clone();
+        p.send_pw = param.mail_pw.clone();
+        p.send_port = 25;
+        p.smtp_certificate_checks = CertificateChecks::AcceptInvalidCertificates;
+        p.server_flags = DC_LP_AUTH_NORMAL as i32
+            | DC_LP_IMAP_SOCKET_STARTTLS as i32
+            | DC_LP_SMTP_SOCKET_STARTTLS as i32;
+
+        info!(context, "found offline autoconfig: {}", p);
+        Some(p)
+    } else {
+        info!(context, "no offline autoconfig found");
+        None
+    }
+}
+
 fn try_imap_connections(
     context: &Context,
     mut param: &mut LoginParam,
@@ -485,8 +532,12 @@ fn try_imap_connection(
 
 fn try_imap_one_param(context: &Context, param: &LoginParam) -> Option<bool> {
     let inf = format!(
-        "imap: {}@{}:{} flags=0x{:x}",
-        param.mail_user, param.mail_server, param.mail_port, param.server_flags
+        "imap: {}@{}:{} flags=0x{:x} certificate_checks={}",
+        param.mail_user,
+        param.mail_server,
+        param.mail_port,
+        param.server_flags,
+        param.imap_certificate_checks
     );
     info!(context, "Trying: {}", inf);
     if context
@@ -567,6 +618,7 @@ fn try_smtp_one_param(context: &Context, param: &LoginParam) -> Option<bool> {
 #[cfg(test)]
 mod tests {
 
+    use super::*;
     use crate::config::*;
     use crate::configure::JobConfigureImap;
     use crate::test_utils::*;
@@ -580,4 +632,19 @@ mod tests {
         t.ctx.set_config(Config::MailPw, Some("123456")).unwrap();
         JobConfigureImap(&t.ctx);
     }
+
+    #[test]
+    fn test_get_offline_autoconfig() {
+        let context = dummy_context().ctx;
+
+        let mut params = LoginParam::new();
+        params.addr = "someone123@example.org".to_string();
+        assert!(get_offline_autoconfig(&context, &params).is_none());
+
+        let mut params = LoginParam::new();
+        params.addr = "someone123@nauta.cu".to_string();
+        let found_params = get_offline_autoconfig(&context, &params).unwrap();
+        assert_eq!(found_params.mail_server, "imap.nauta.cu".to_string());
+        assert_eq!(found_params.send_server, "smtp.nauta.cu".to_string());
+    }
 }

src/constants.rs

@@ -58,6 +58,9 @@ pub const DC_GCM_ADDDAYMARKER: u32 = 0x01;
 pub const DC_GCL_VERIFIED_ONLY: usize = 0x01;
 pub const DC_GCL_ADD_SELF: usize = 0x02;
 
+// unchanged user avatars are resent to the recipients every some days
+pub const DC_RESEND_USER_AVATAR_DAYS: i64 = 14;
+
 // values for DC_PARAM_FORCE_PLAINTEXT
 pub(crate) const DC_FP_NO_AUTOCRYPT_HEADER: i32 = 2;
 pub(crate) const DC_FP_ADD_AUTOCRYPT_HEADER: i32 = 1;
@@ -119,6 +122,10 @@ 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;
 
+// 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;

src/contact.rs

@@ -10,11 +10,13 @@ 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, MsgId};
+use crate::mimeparser::AvatarAction;
+use crate::param::*;
 use crate::peerstate::*;
 use crate::sql;
 use crate::stock::StockMessage;
@@ -58,6 +60,8 @@ pub struct Contact {
     blocked: bool,
     /// The origin/source of the contact.
     pub origin: Origin,
+    /// Parameters as Param::ProfileImage
+    pub param: Params,
 }
 
 /// Possible origins of a contact.
@@ -139,32 +143,10 @@ pub enum VerifiedStatus {
 
 impl Contact {
     pub fn load_from_db(context: &Context, contact_id: u32) -> crate::sql::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);
-        } else if contact_id == DC_CONTACT_ID_DEVICE {
-            let contact = Contact {
-                id: contact_id,
-                name: context.stock_str(StockMessage::DeviceMessages).into(),
-                authname: "".into(),
-                addr: "device@localhost".into(),
-                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=?;",
+        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 {
@@ -174,10 +156,21 @@ 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.
@@ -709,6 +702,16 @@ impl Contact {
         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.
     pub fn get_id(&self) -> u32 {
         self.id
@@ -742,6 +745,9 @@ impl Contact {
         if !self.name.is_empty() {
             return &self.name;
         }
+        if !self.authname.is_empty() {
+            return &self.authname;
+        }
         &self.addr
     }
 
@@ -777,8 +783,11 @@ 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
     }
 
@@ -861,14 +870,14 @@ impl Contact {
             .unwrap_or_default() as usize
     }
 
-    pub fn get_origin_by_id(context: &Context, contact_id: u32, ret_blocked: &mut i32) -> Origin {
+    pub fn get_origin_by_id(context: &Context, contact_id: u32, ret_blocked: &mut bool) -> Origin {
         let mut ret = Origin::Unknown;
-        *ret_blocked = 0;
+        *ret_blocked = false;
 
         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;
+                *ret_blocked = true;
             } else {
                 ret = contact.origin;
             }
@@ -957,6 +966,32 @@ fn set_block_contact(context: &Context, contact_id: u32, new_blocking: bool) {
     }
 }
 
+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)
@@ -1021,6 +1056,18 @@ fn cat_fingerprint(
     }
 }
 
+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),
+        };
+
+        Ok(addr_cmp(self_addr, addr))
+    }
+}
+
 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();
@@ -1028,15 +1075,6 @@ pub fn addr_cmp(addr1: impl AsRef<str>, addr2: impl AsRef<str>) -> bool {
     norm1 == norm2
 }
 
-pub fn addr_equals_self(context: &Context, addr: impl AsRef<str>) -> bool {
-    if !addr.as_ref().is_empty() {
-        if let Some(self_addr) = context.get_config(Config::ConfiguredAddr) {
-            return addr_cmp(addr, self_addr);
-        }
-    }
-    false
-}
-
 fn split_address_book(book: &str) -> Vec<(&str, &str)> {
     book.lines()
         .chunks(2)
@@ -1120,6 +1158,18 @@ mod tests {
         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()

src/context.rs

@@ -298,6 +298,11 @@ 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());

src/dc_simplify.rs

@@ -49,7 +49,7 @@ impl Simplify {
     /**
      * Simplify Plain Text
      */
-    #[allow(non_snake_case, clippy::mut_range_bound)]
+    #[allow(non_snake_case, clippy::mut_range_bound, clippy::needless_range_loop)]
     fn simplify_plain_text(&mut self, buf_terminated: &str, is_msgrmsg: bool) -> String {
         /* This function ...
         ... removes all text after the line `-- ` (footer mark)

src/dc_tools.rs

@@ -182,22 +182,6 @@ fn encode_66bits_as_base64(v1: u32, v2: u32, fill: u32) -> String {
     String::from_utf8(wrapped_writer).unwrap()
 }
 
-pub(crate) fn dc_create_incoming_rfc724_mid(
-    message_timestamp: i64,
-    contact_id_from: u32,
-    contact_ids_to: &[u32],
-) -> Option<String> {
-    /* create a deterministic rfc724_mid from input such that
-    repeatedly calling it with the same input results in the same Message-id */
-
-    let largest_id_to = contact_ids_to.iter().max().copied().unwrap_or_default();
-    let result = format!(
-        "{}-{}-{}@stub",
-        message_timestamp, contact_id_from, largest_id_to
-    );
-    Some(result)
-}
-
 /// Function generates a Message-ID that can be used for a new outgoing message.
 /// - this function is called for all outgoing messages.
 /// - the message ID should be globally unique
@@ -780,14 +764,6 @@ mod tests {
         }
     }
 
-    #[test]
-    fn test_dc_create_incoming_rfc724_mid() {
-        let res = dc_create_incoming_rfc724_mid(123, 45, &[6, 7]);
-        assert_eq!(res, Some("123-45-7@stub".into()));
-        let res = dc_create_incoming_rfc724_mid(123, 45, &[]);
-        assert_eq!(res, Some("123-45-0@stub".into()));
-    }
-
     #[test]
     fn test_file_get_safe_basename() {
         assert_eq!(get_safe_basename("12312/hello"), "hello");

src/error.rs

@@ -28,12 +28,14 @@ pub enum Error {
     InvalidMsgId,
     #[fail(display = "Watch folder not found {:?}", _0)]
     WatchFolderNotFound(String),
-    #[fail(display = "Inalid Email: {:?}", _0)]
+    #[fail(display = "Invalid Email: {:?}", _0)]
     MailParseError(#[cause] mailparse::MailParseError),
     #[fail(display = "Building invalid Email: {:?}", _0)]
     LettreError(#[cause] lettre_email::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>;

src/headerdef.rs

@@ -0,0 +1,58 @@
+#[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,
+    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

@@ -18,6 +18,9 @@ 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,
 
@@ -91,7 +94,17 @@ impl Imap {
                                 }
                             }
                         }
-                        match handle.done().await {
+                        // 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));
                             }
@@ -135,7 +148,17 @@ impl Imap {
                                 }
                             }
                         }
-                        match handle.done().await {
+                        // 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));
                             }

src/imap/mod.rs

@@ -7,7 +7,7 @@ use std::sync::atomic::{AtomicBool, Ordering};
 
 use async_imap::{
     error::Result as ImapResult,
-    types::{Fetch, Flag, Mailbox, Name, NameAttribute},
+    types::{Capability, Fetch, Flag, Mailbox, Name, NameAttribute},
 };
 use async_std::sync::{Mutex, RwLock};
 use async_std::task;
@@ -329,9 +329,7 @@ impl Imap {
 
     /// Connects to imap account using already-configured parameters.
     pub fn connect_configured(&self, context: &Context) -> Result<()> {
-        if async_std::task::block_on(async move {
-            self.is_connected().await && !self.should_reconnect()
-        }) {
+        if async_std::task::block_on(self.is_connected()) && !self.should_reconnect() {
             return Ok(());
         }
         if !context.sql.get_raw_config_bool(context, "configured") {
@@ -389,9 +387,14 @@ impl Imap {
                         } else {
                             let can_idle = caps.has_str("IDLE");
                             let has_xlist = caps.has_str("XLIST");
-                            let caps_list = caps
-                                .iter()
-                                .fold(String::new(), |s, c| s + &format!(" {:?}", c));
+                            let caps_list = caps.iter().fold(String::new(), |s, c| {
+                                if let Capability::Atom(x) = c {
+                                    s + &format!(" {}", x)
+                                } else {
+                                    s + &format!(" {:?}", c)
+                                }
+                            });
+
                             self.config.write().await.can_idle = can_idle;
                             self.config.write().await.has_xlist = has_xlist;
                             *self.connected.lock().await = true;
@@ -713,7 +716,17 @@ impl Imap {
 
             if !is_deleted && msg.body().is_some() {
                 let body = msg.body().unwrap_or_default();
-                dc_receive_imf(context, &body, folder.as_ref(), server_uid, flags as u32);
+                if let Err(err) =
+                    dc_receive_imf(context, &body, folder.as_ref(), server_uid, flags as u32)
+                {
+                    warn!(
+                        context,
+                        "dc_receive_imf failed for imap-message {}/{}: {:?}",
+                        folder.as_ref(),
+                        server_uid,
+                        err
+                    );
+                }
             }
         }
 

src/imap_client.rs

@@ -4,12 +4,11 @@ use async_imap::{
     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 async_std::sync::Arc;
-use async_tls::client::TlsStream;
 
-use crate::login_param::{dc_build_tls_config, CertificateChecks};
+use crate::login_param::{dc_build_tls, CertificateChecks};
 
 #[derive(Debug)]
 pub(crate) enum Client {
@@ -36,9 +35,9 @@ impl Client {
         certificate_checks: CertificateChecks,
     ) -> ImapResult<Self> {
         let stream = TcpStream::connect(addr).await?;
-        let tls_config = dc_build_tls_config(certificate_checks);
-        let tls_connector: async_tls::TlsConnector = Arc::new(tls_config).into();
-        let tls_stream = tls_connector.connect(domain.as_ref(), stream)?.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;
@@ -74,10 +73,10 @@ impl Client {
     ) -> ImapResult<Client> {
         match self {
             Client::Insecure(client) => {
-                let tls_config = dc_build_tls_config(certificate_checks);
-                let tls: async_tls::TlsConnector = Arc::new(tls_config).into();
+                let tls = dc_build_tls(certificate_checks)?;
+                let tls_stream = tls.into();
 
-                let client_sec = client.secure(domain, &tls).await?;
+                let client_sec = client.secure(domain, &tls_stream).await?;
 
                 Ok(Client::Secure(client_sec))
             }

src/job.rs

@@ -167,13 +167,15 @@ impl Job {
                 if let Some(recipients) = self.param.get(Param::Recipients) {
                     let recipients_list = recipients
                         .split('\x1e')
-                        .filter_map(|addr| match lettre::EmailAddress::new(addr.to_string()) {
-                            Ok(addr) => Some(addr),
-                            Err(err) => {
-                                warn!(context, "invalid recipient: {} {:?}", addr, err);
-                                None
-                            }
-                        })
+                        .filter_map(
+                            |addr| match async_smtp::EmailAddress::new(addr.to_string()) {
+                                Ok(addr) => Some(addr),
+                                Err(err) => {
+                                    warn!(context, "invalid recipient: {} {:?}", addr, err);
+                                    None
+                                }
+                            },
+                        )
                         .collect::<Vec<_>>();
 
                     /* if there is a msg-id and it does not exist in the db, cancel sending.
@@ -198,11 +200,11 @@ impl Job {
                         info!(context, "smtp-sending out mime message:");
                         println!("{}", String::from_utf8_lossy(&body));
                     }
-                    match smtp.send(context, recipients_list, body, self.job_id) {
+                    match task::block_on(smtp.send(context, recipients_list, body, self.job_id)) {
                         Err(crate::smtp::send::Error::SendError(err)) => {
                             // Remote error, retry later.
-                            smtp.disconnect();
                             info!(context, "SMTP failed to send: {}", err);
+                            smtp.disconnect();
                             self.try_again_later(TryAgain::AtOnce, Some(err.to_string()));
                         }
                         Err(crate::smtp::send::Error::EnvelopeError(err)) => {
@@ -631,7 +633,15 @@ pub fn job_send_msg(context: &Context, msg_id: MsgId) -> Result<(), Error> {
     /* create message */
     let needs_encryption = msg.param.get_int(Param::GuaranteeE2ee).unwrap_or_default();
 
-    let mimefactory = MimeFactory::from_msg(context, &msg)?;
+    let attach_selfavatar = match chat::shall_attach_selfavatar(context, msg.chat_id) {
+        Ok(attach_selfavatar) => attach_selfavatar,
+        Err(err) => {
+            warn!(context, "job: cannot get selfavatar-state: {}", err);
+            false
+        }
+    };
+
+    let mimefactory = MimeFactory::from_msg(context, &msg, attach_selfavatar)?;
     let mut rendered_msg = mimefactory.render().map_err(|err| {
         message::set_msg_failed(context, msg_id, Some(err.to_string()));
         err
@@ -668,8 +678,9 @@ pub fn job_send_msg(context: &Context, msg_id: MsgId) -> Result<(), Error> {
     }
 
     if rendered_msg.is_gossiped {
-        chat::set_gossiped_timestamp(context, msg.chat_id, time());
+        chat::set_gossiped_timestamp(context, msg.chat_id, time())?;
     }
+
     if 0 != rendered_msg.last_added_location_id {
         if let Err(err) = location::set_kml_sent_timestamp(context, msg.chat_id, time()) {
             error!(context, "Failed to set kml sent_timestamp: {:?}", err);
@@ -682,6 +693,13 @@ pub fn job_send_msg(context: &Context, msg_id: MsgId) -> Result<(), Error> {
             }
         }
     }
+
+    if attach_selfavatar {
+        if let Err(err) = chat::set_selfavatar_timestamp(context, msg.chat_id, time()) {
+            error!(context, "Failed to set selfavatar timestamp: {:?}", err);
+        }
+    }
+
     if rendered_msg.is_encrypted && needs_encryption == 0 {
         msg.param.set_int(Param::GuaranteeE2ee, 1);
         msg.save_param_to_disk(context);

src/lib.rs

@@ -3,16 +3,11 @@
 #![allow(
     clippy::type_complexity,
     clippy::cognitive_complexity,
-    clippy::too_many_arguments,
-    clippy::block_in_if_condition_stmt,
-    clippy::large_enum_variant
-)]
-#![allow(
-    clippy::unreadable_literal,
-    clippy::needless_range_loop,
-    clippy::match_bool
+    clippy::too_many_arguments
 )]
+#![allow(clippy::unreadable_literal, clippy::match_bool)]
 #![feature(ptr_wrapping_offset_from)]
+#![feature(drain_filter)]
 
 #[macro_use]
 extern crate failure_derive;
@@ -33,6 +28,8 @@ mod log;
 #[macro_use]
 pub mod error;
 
+pub mod headerdef;
+
 pub(crate) mod events;
 pub use events::*;
 
@@ -73,7 +70,6 @@ mod token;
 mod wrapmime;
 mod dehtml;
 
-pub mod dc_array;
 pub mod dc_receive_imf;
 mod dc_simplify;
 pub mod dc_tools;

src/login_param.rs

@@ -4,11 +4,6 @@ use std::borrow::Cow;
 use std::fmt;
 
 use crate::context::Context;
-use crate::error::Error;
-use async_std::sync::Arc;
-use rustls;
-use webpki;
-use webpki_roots;
 
 #[derive(Copy, Clone, Debug, Display, FromPrimitive)]
 #[repr(i32)]
@@ -16,7 +11,11 @@ use webpki_roots;
 pub enum CertificateChecks {
     Automatic = 0,
     Strict = 1,
-    AcceptInvalidHostnames = 2,
+
+    /// Same as AcceptInvalidCertificates
+    /// Previously known as AcceptInvalidHostnames, now deprecated.
+    AcceptInvalidCertificates2 = 2,
+
     AcceptInvalidCertificates = 3,
 }
 
@@ -130,7 +129,7 @@ impl LoginParam {
         &self,
         context: &Context,
         prefix: impl AsRef<str>,
-    ) -> Result<(), Error> {
+    ) -> crate::sql::Result<()> {
         let prefix = prefix.as_ref();
         let sql = &context.sql;
 
@@ -259,49 +258,25 @@ fn get_readable_flags(flags: i32) -> String {
     res
 }
 
-pub struct NoCertificateVerification {}
-
-impl rustls::ServerCertVerifier for NoCertificateVerification {
-    fn verify_server_cert(
-        &self,
-        _roots: &rustls::RootCertStore,
-        _presented_certs: &[rustls::Certificate],
-        _dns_name: webpki::DNSNameRef<'_>,
-        _ocsp: &[u8],
-    ) -> Result<rustls::ServerCertVerified, rustls::TLSError> {
-        Ok(rustls::ServerCertVerified::assertion())
-    }
-}
-
-pub fn dc_build_tls_config(certificate_checks: CertificateChecks) -> rustls::ClientConfig {
-    let mut config = rustls::ClientConfig::new();
-    config
-        .root_store
-        .add_server_trust_anchors(&webpki_roots::TLS_SERVER_ROOTS);
-
+pub fn dc_build_tls(
+    certificate_checks: CertificateChecks,
+) -> Result<native_tls::TlsConnector, native_tls::Error> {
+    let mut tls_builder = native_tls::TlsConnector::builder();
     match certificate_checks {
-        CertificateChecks::Strict => {}
         CertificateChecks::Automatic => {
             // Same as AcceptInvalidCertificates for now.
             // TODO: use provider database when it becomes available
-            config
-                .dangerous()
-                .set_certificate_verifier(Arc::new(NoCertificateVerification {}));
-        }
-        CertificateChecks::AcceptInvalidCertificates => {
-            // TODO: only accept invalid certs
-            config
-                .dangerous()
-                .set_certificate_verifier(Arc::new(NoCertificateVerification {}));
-        }
-        CertificateChecks::AcceptInvalidHostnames => {
-            // TODO: only accept invalid hostnames
-            config
-                .dangerous()
-                .set_certificate_verifier(Arc::new(NoCertificateVerification {}));
+            tls_builder
+                .danger_accept_invalid_hostnames(true)
+                .danger_accept_invalid_certs(true)
         }
+        CertificateChecks::Strict => &mut tls_builder,
+        CertificateChecks::AcceptInvalidCertificates
+        | CertificateChecks::AcceptInvalidCertificates2 => tls_builder
+            .danger_accept_invalid_hostnames(true)
+            .danger_accept_invalid_certs(true),
     }
-    config
+    .build()
 }
 
 #[cfg(test)]
@@ -313,8 +288,8 @@ mod tests {
         use std::string::ToString;
 
         assert_eq!(
-            "accept_invalid_hostnames".to_string(),
-            CertificateChecks::AcceptInvalidHostnames.to_string()
+            "accept_invalid_certificates".to_string(),
+            CertificateChecks::AcceptInvalidCertificates.to_string()
         );
     }
 }

src/mimefactory.rs

@@ -1,6 +1,7 @@
 use chrono::TimeZone;
 use lettre_email::{mime, Address, Header, MimeMultipartType, PartBuilder};
 
+use crate::blob::BlobObject;
 use crate::chat::{self, Chat};
 use crate::config::Config;
 use crate::constants::*;
@@ -41,6 +42,7 @@ pub struct MimeFactory<'a, 'b> {
     pub req_mdn: bool,
     pub context: &'a Context,
     last_added_location_id: u32,
+    attach_selfavatar: bool,
 }
 
 /// Result of rendering a message, ready to be submitted to a send job.
@@ -62,7 +64,11 @@ pub struct RenderedEmail {
 }
 
 impl<'a, 'b> MimeFactory<'a, 'b> {
-    pub fn from_msg(context: &'a Context, msg: &'b Message) -> Result<MimeFactory<'a, 'b>, Error> {
+    pub fn from_msg(
+        context: &'a Context,
+        msg: &'b Message,
+        add_selfavatar: bool,
+    ) -> Result<MimeFactory<'a, 'b>, Error> {
         let chat = Chat::load_from_db(context, msg.chat_id)?;
 
         let mut factory = MimeFactory {
@@ -84,6 +90,7 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
             references: String::default(),
             req_mdn: false,
             last_added_location_id: 0,
+            attach_selfavatar: add_selfavatar,
             context,
         };
 
@@ -152,7 +159,10 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
                 let in_reply_to: String = row.get(0)?;
                 let references: String = row.get(1)?;
 
-                Ok((in_reply_to, references))
+                Ok((
+                    render_rfc724_mid_list(&in_reply_to),
+                    render_rfc724_mid_list(&references),
+                ))
             },
         );
 
@@ -207,6 +217,7 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
             references: String::default(),
             req_mdn: false,
             last_added_location_id: 0,
+            attach_selfavatar: false,
         })
     }
 
@@ -293,9 +304,8 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
             Loaded::Message => {
                 let chat = self.chat.as_ref().unwrap();
                 // beside key- and member-changes, force re-gossip every 48 hours
-                if chat.gossiped_timestamp == 0
-                    || (chat.gossiped_timestamp + (2 * 24 * 60 * 60)) > time()
-                {
+                let gossiped_timestamp = chat.get_gossiped_timestamp(self.context);
+                if gossiped_timestamp == 0 || (gossiped_timestamp + (2 * 24 * 60 * 60)) > time() {
                     return true;
                 }
 
@@ -321,6 +331,15 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
                     _ => {}
                 }
 
+                if self
+                    .msg
+                    .param
+                    .get_bool(Param::AttachGroupImage)
+                    .unwrap_or_default()
+                {
+                    return chat.param.get(Param::ProfileImage).map(Into::into);
+                }
+
                 None
             }
             Loaded::MDN => None,
@@ -382,7 +401,7 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
         let mut unprotected_headers: Vec<Header> = Vec::new();
 
         let from = Address::new_mailbox_with_name(
-            encode_words(&self.from_displayname),
+            self.from_displayname.to_string(),
             self.from_addr.clone(),
         );
 
@@ -394,7 +413,7 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
                 to.push(Address::new_mailbox(addr.clone()));
             } else {
                 to.push(Address::new_mailbox_with_name(
-                    encode_words(name),
+                    name.to_string(),
                     addr.clone(),
                 ));
             }
@@ -443,7 +462,6 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
         }
 
         let min_verified = self.min_verified();
-        let do_gossip = self.should_do_gossip();
         let grpimage = self.grpimage();
         let force_plaintext = self.should_force_plaintext();
         let subject_str = self.subject_str();
@@ -477,19 +495,31 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
             Loaded::MDN => dc_create_outgoing_rfc724_mid(None, &self.from_addr),
         };
 
-        protected_headers.push(Header::new("Message-ID".into(), rfc724_mid.clone()));
+        // we could also store the message-id in the protected headers
+        // which would probably help to survive providers like
+        // Outlook.com or hotmail which mangle the Message-ID.
+        // but they also strip the Autocrypt header so we probably
+        // never get a chance to tunnel our protected headers in a
+        // cryptographic payload.
+        unprotected_headers.push(Header::new(
+            "Message-ID".into(),
+            render_rfc724_mid(&rfc724_mid),
+        ));
 
         unprotected_headers.push(Header::new_with_value("To".into(), to).unwrap());
         unprotected_headers.push(Header::new_with_value("From".into(), vec![from]).unwrap());
 
+        let mut is_gossiped = false;
+
         let outer_message = if is_encrypted {
-            // Add gossip headers
-            if do_gossip {
+            // Add gossip headers in chats with multiple recipients
+            if peerstates.len() > 1 && self.should_do_gossip() {
                 for peerstate in peerstates.iter().filter_map(|(state, _)| state.as_ref()) {
                     if peerstate.peek_key(min_verified).is_some() {
                         if let Some(header) = peerstate.render_gossip_header(min_verified) {
                             message =
                                 message.header(Header::new("Autocrypt-Gossip".into(), header));
+                            is_gossiped = true;
                         }
                     }
                 }
@@ -570,8 +600,6 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
             message
         };
 
-        let is_gossiped = is_encrypted && do_gossip && !peerstates.is_empty();
-
         let MimeFactory {
             recipients_addr,
             from_addr,
@@ -608,6 +636,7 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
         let command = self.msg.param.get_cmd();
         let mut placeholdertext = None;
         let mut meta_part = None;
+        let mut add_compatibility_header = false;
 
         if chat.typ == Chattype::VerifiedGroup {
             protected_headers.push(Header::new("Chat-Verified".to_string(), "1".to_string()));
@@ -648,6 +677,7 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
                             "vg-member-added".to_string(),
                         ));
                     }
+                    add_compatibility_header = true;
                 }
                 SystemMessage::GroupNameChanged => {
                     let value_to_add = self.msg.param.get(Param::Arg).unwrap_or_default();
@@ -658,10 +688,17 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
                     ));
                 }
                 SystemMessage::GroupImageChanged => {
+                    protected_headers.push(Header::new(
+                        "Chat-Content".to_string(),
+                        "group-avatar-changed".to_string(),
+                    ));
                     if grpimage.is_none() {
-                        protected_headers
-                            .push(Header::new("Chat-Group-Image".to_string(), "0".to_string()));
+                        protected_headers.push(Header::new(
+                            "Chat-Group-Avatar".to_string(),
+                            "0".to_string(),
+                        ));
                     }
+                    add_compatibility_header = true;
                 }
                 _ => {}
             }
@@ -729,7 +766,18 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
 
             let (mail, filename_as_sent) = build_body_file(context, &meta, "group-image")?;
             meta_part = Some(mail);
-            protected_headers.push(Header::new("Chat-Group-Image".into(), filename_as_sent));
+            protected_headers.push(Header::new(
+                "Chat-Group-Avatar".into(),
+                filename_as_sent.clone(),
+            ));
+
+            // add the old group-image headers for versions <=0.973 resp. <=beta.15 (december 2019)
+            // image deletion is not supported in the compatibility layer.
+            // this can be removed some time after releasing 1.0,
+            // grep for #DeprecatedAvatar to get the place where compatibility parsing takes place.
+            if add_compatibility_header {
+                protected_headers.push(Header::new("Chat-Group-Image".into(), filename_as_sent));
+            }
         }
 
         if self.msg.type_0 == Viewtype::Sticker {
@@ -861,6 +909,19 @@ impl<'a, 'b> MimeFactory<'a, 'b> {
             }
         }
 
+        if self.attach_selfavatar {
+            match context.get_config(Config::Selfavatar) {
+                Some(path) => match build_selfavatar_file(context, path) {
+                    Ok((part, filename)) => {
+                        parts.push(part);
+                        protected_headers.push(Header::new("Chat-User-Avatar".into(), filename))
+                    }
+                    Err(err) => warn!(context, "mimefactory: cannot attach selfavatar: {}", err),
+                },
+                None => protected_headers.push(Header::new("Chat-User-Avatar".into(), "0".into())),
+            }
+        }
+
         // Single part, render as regular message.
         if parts.len() == 1 {
             return Ok(parts.pop().unwrap());
@@ -1012,6 +1073,31 @@ fn build_body_file(
     Ok((mail, filename_to_send))
 }
 
+fn build_selfavatar_file(context: &Context, path: String) -> Result<(PartBuilder, String), Error> {
+    let blob = BlobObject::from_path(context, path)?;
+    let filename_to_send = match blob.suffix() {
+        Some(suffix) => format!("avatar.{}", suffix),
+        None => "avatar".to_string(),
+    };
+    let mimetype = match message::guess_msgtype_from_suffix(blob.as_rel_path()) {
+        Some(res) => res.1.parse()?,
+        None => mime::APPLICATION_OCTET_STREAM,
+    };
+    let body = std::fs::read(blob.to_abs_path())?;
+    let encoded_body = base64::encode(&body);
+
+    let part = PartBuilder::new()
+        .content_type(&mimetype)
+        .header((
+            "Content-Disposition",
+            format!("attachment; filename=\"{}\"", &filename_to_send),
+        ))
+        .header(("Content-Transfer-Encoding", "base64"))
+        .body(encoded_body);
+
+    Ok((part, filename_to_send))
+}
+
 pub(crate) fn vec_contains_lowercase(vec: &[String], part: &str) -> bool {
     let partlc = part.to_lowercase();
     for cur in vec.iter() {
@@ -1032,6 +1118,25 @@ fn is_file_size_okay(context: &Context, msg: &Message) -> bool {
     }
 }
 
+fn render_rfc724_mid(rfc724_mid: &str) -> String {
+    let rfc724_mid = rfc724_mid.trim().to_string();
+
+    if rfc724_mid.chars().nth(0).unwrap_or_default() == '<' {
+        rfc724_mid
+    } else {
+        format!("<{}>", rfc724_mid)
+    }
+}
+
+fn render_rfc724_mid_list(mid_list: &str) -> String {
+    mid_list
+        .trim()
+        .split_ascii_whitespace()
+        .map(render_rfc724_mid)
+        .collect::<Vec<String>>()
+        .join(" ")
+}
+
 /* ******************************************************************************
  * Encode/decode header words, RFC 2047
  ******************************************************************************/
@@ -1051,3 +1156,51 @@ pub fn needs_encoding(to_check: impl AsRef<str>) -> bool {
         !c.is_ascii_alphanumeric() && c != '-' && c != '_' && c != '.' && c != '~' && c != '%'
     })
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_render_email_address() {
+        let display_name = "ä space";
+        let addr = "x@y.org";
+
+        assert!(!display_name.is_ascii());
+
+        let s = format!(
+            "{}",
+            Address::new_mailbox_with_name(display_name.to_string(), addr.to_string())
+        );
+
+        println!("{}", s);
+
+        assert_eq!(s, "=?utf-8?q?=C3=A4_space?= <x@y.org>");
+    }
+
+    #[test]
+    fn test_render_rfc724_mid() {
+        assert_eq!(
+            render_rfc724_mid("kqjwle123@qlwe"),
+            "<kqjwle123@qlwe>".to_string()
+        );
+        assert_eq!(
+            render_rfc724_mid("  kqjwle123@qlwe "),
+            "<kqjwle123@qlwe>".to_string()
+        );
+        assert_eq!(
+            render_rfc724_mid("<kqjwle123@qlwe>"),
+            "<kqjwle123@qlwe>".to_string()
+        );
+    }
+
+    #[test]
+    fn test_render_rc724_mid_list() {
+        assert_eq!(render_rfc724_mid_list("123@q "), "<123@q>".to_string());
+        assert_eq!(render_rfc724_mid_list(" 123@q "), "<123@q>".to_string());
+        assert_eq!(
+            render_rfc724_mid_list("123@q 456@d "),
+            "<123@q> <456@d>".to_string()
+        );
+    }
+}

src/mimeparser.rs

@@ -14,6 +14,7 @@ use crate::dc_simplify::*;
 use crate::dc_tools::*;
 use crate::e2ee;
 use crate::error::Result;
+use crate::headerdef::HeaderDef;
 use crate::job::{job_add, Action};
 use crate::location;
 use crate::message;
@@ -28,21 +29,38 @@ use crate::{bail, ensure};
 pub struct MimeParser<'a> {
     pub context: &'a Context,
     pub parts: Vec<Part>,
-    pub header: HashMap<String, String>,
-    pub subject: Option<String>,
+    header: HashMap<String, String>,
     pub decrypting_failed: bool,
-    pub encrypted: bool,
     pub signatures: HashSet<String>,
     pub gossipped_addr: HashSet<String>,
     pub is_forwarded: bool,
     pub is_system_message: SystemMessage,
     pub location_kml: Option<location::Kml>,
     pub message_kml: Option<location::Kml>,
+    pub user_avatar: AvatarAction,
+    pub group_avatar: AvatarAction,
     reports: Vec<Report>,
     mdns_enabled: bool,
     parsed_protected_headers: bool,
 }
 
+#[derive(Debug, PartialEq)]
+pub enum AvatarAction {
+    None,
+    Delete,
+    Change(String),
+}
+
+impl AvatarAction {
+    pub fn is_change(&self) -> bool {
+        match self {
+            AvatarAction::None => false,
+            AvatarAction::Delete => false,
+            AvatarAction::Change(_) => true,
+        }
+    }
+}
+
 #[derive(Debug, Display, Clone, Copy, PartialEq, Eq, FromPrimitive, ToPrimitive, ToSql, FromSql)]
 #[repr(i32)]
 pub enum SystemMessage {
@@ -73,9 +91,9 @@ impl<'a> MimeParser<'a> {
         let mut parser = MimeParser {
             parts: Vec::new(),
             header: Default::default(),
-            subject: None,
             decrypting_failed: false,
-            encrypted: false,
+
+            // only non-empty if it was a valid autocrypt message
             signatures: Default::default(),
             gossipped_addr: Default::default(),
             is_forwarded: false,
@@ -84,6 +102,8 @@ impl<'a> MimeParser<'a> {
             is_system_message: SystemMessage::Unknown,
             location_kml: None,
             message_kml: None,
+            user_avatar: AvatarAction::None,
+            group_avatar: AvatarAction::None,
             mdns_enabled,
             parsed_protected_headers: false,
         };
@@ -94,7 +114,8 @@ impl<'a> MimeParser<'a> {
             .and_then(|v| mailparse::dateparse(&v).ok())
             .unwrap_or_default();
 
-        parser.hash_header(&mail.headers);
+        // init known headers with what mailparse provided us
+        parser.merge_headers(&mail.headers);
 
         // Memory location for a possible decrypted message.
         let mail_raw;
@@ -102,7 +123,6 @@ impl<'a> MimeParser<'a> {
         let mail = match e2ee::try_decrypt(parser.context, &mail, message_time) {
             Ok((raw, signatures)) => {
                 // Valid autocrypt message, encrypted
-                parser.encrypted = raw.is_some();
                 parser.signatures = signatures;
 
                 if let Some(raw) = raw {
@@ -120,6 +140,10 @@ impl<'a> MimeParser<'a> {
                     parser.gossipped_addr =
                         update_gossip_peerstates(context, message_time, &mail, gossip_headers)?;
 
+                    // let known protected headers from the decrypted
+                    // part override the unencrypted top-level
+                    parser.merge_headers(&decrypted_mail.headers);
+
                     decrypted_mail
                 } else {
                     // Message was not encrypted
@@ -147,54 +171,32 @@ impl<'a> MimeParser<'a> {
     }
 
     fn parse_headers(&mut self) -> Result<()> {
-        if let Some(field) = self.lookup_field("Subject") {
-            self.subject = Some(field.clone());
-        }
-
-        if self.lookup_field("Autocrypt-Setup-Message").is_some() {
-            let has_setup_file = self.parts.iter().any(|p| {
-                p.mimetype.is_some() && p.mimetype.as_ref().unwrap().as_ref() == MIME_AC_SETUP_FILE
+        if self.get(HeaderDef::AutocryptSetupMessage).is_some() {
+            self.parts.drain_filter(|part| {
+                part.mimetype.is_some()
+                    && part.mimetype.as_ref().unwrap().as_ref() != MIME_AC_SETUP_FILE
             });
-
-            if has_setup_file {
+            if self.parts.len() == 1 {
                 self.is_system_message = SystemMessage::AutocryptSetupMessage;
-
-                // TODO: replace the following code with this
-                // once drain_filter stabilizes.
-                //
-                // See https://doc.rust-lang.org/std/vec/struct.Vec.html#method.drain_filter
-                // and https://github.com/rust-lang/rust/issues/43244
-                //
-                // mimeparser
-                //    .parts
-                //    .drain_filter(|part| part.int_mimetype != 111)
-                //    .for_each(|part| dc_mimepart_unref(part));
-
-                let mut i = 0;
-                while i != self.parts.len() {
-                    let mimetype = &self.parts[i].mimetype;
-                    if mimetype.is_none()
-                        || mimetype.as_ref().unwrap().as_ref() != MIME_AC_SETUP_FILE
-                    {
-                        self.parts.remove(i);
-                    } else {
-                        i += 1;
-                    }
-                }
+            } else {
+                warn!(self.context, "could not determine ASM mime-part");
             }
-        } else if let Some(value) = self.lookup_field("Chat-Content") {
+        } else if let Some(value) = self.get(HeaderDef::ChatContent) {
             if value == "location-streaming-enabled" {
                 self.is_system_message = SystemMessage::LocationStreamingEnabled;
             }
         }
-        if self.lookup_field("Chat-Group-Image").is_some() && !self.parts.is_empty() {
-            let textpart = &self.parts[0];
-            if textpart.typ == Viewtype::Text && self.parts.len() >= 2 {
-                let imgpart = &mut self.parts[1];
-                if imgpart.typ == Viewtype::Image {
-                    imgpart.is_meta = true;
-                }
-            }
+
+        if let Some(header_value) = self.get(HeaderDef::ChatGroupAvatar).cloned() {
+            self.group_avatar = self.avatar_action_from_header(header_value);
+        } else if let Some(header_value) = self.get(HeaderDef::ChatGroupImage).cloned() {
+            // parse the old group-image headers for versions <=0.973 resp. <=beta.15 (december 2019)
+            // grep for #DeprecatedAvatar to get the place where a compatibility header is generated.
+            self.group_avatar = self.avatar_action_from_header(header_value);
+        }
+
+        if let Some(header_value) = self.get(HeaderDef::ChatUserAvatar).cloned() {
+            self.user_avatar = self.avatar_action_from_header(header_value);
         }
 
         if self.has_chat_version() && self.parts.len() == 2 {
@@ -225,7 +227,7 @@ impl<'a> MimeParser<'a> {
                 std::mem::replace(&mut self.parts[0], filepart);
             }
         }
-        if let Some(ref subject) = self.subject {
+        if let Some(ref subject) = self.get_subject() {
             let mut prepend_subject = 1i32;
             if !self.decrypting_failed {
                 let colon = subject.find(':');
@@ -262,13 +264,13 @@ impl<'a> MimeParser<'a> {
         }
         if self.parts.len() == 1 {
             if self.parts[0].typ == Viewtype::Audio
-                && self.lookup_field("Chat-Voice-Message").is_some()
+                && self.get(HeaderDef::ChatVoiceMessage).is_some()
             {
                 let part_mut = &mut self.parts[0];
                 part_mut.typ = Viewtype::Voice;
             }
             if self.parts[0].typ == Viewtype::Image {
-                if let Some(value) = self.lookup_field("Chat-Content") {
+                if let Some(value) = self.get(HeaderDef::ChatContent) {
                     if value == "sticker" {
                         let part_mut = &mut self.parts[0];
                         part_mut.typ = Viewtype::Sticker;
@@ -280,7 +282,7 @@ impl<'a> MimeParser<'a> {
                 || part.typ == Viewtype::Voice
                 || part.typ == Viewtype::Video
             {
-                if let Some(field_0) = self.lookup_field("Chat-Duration") {
+                if let Some(field_0) = self.get(HeaderDef::ChatDuration) {
                     let duration_ms = field_0.parse().unwrap_or_default();
                     if duration_ms > 0 && duration_ms < 24 * 60 * 60 * 1000 {
                         let part_mut = &mut self.parts[0];
@@ -290,12 +292,12 @@ impl<'a> MimeParser<'a> {
             }
         }
         if !self.decrypting_failed {
-            if let Some(dn_field) = self.lookup_field("Chat-Disposition-Notification-To") {
+            if let Some(dn_field) = self.get(HeaderDef::ChatDispositionNotificationTo) {
                 if self.get_last_nonmeta().is_some() {
                     let addrs = mailparse::addrparse(&dn_field).unwrap();
 
                     if let Some(dn_to_addr) = addrs.first() {
-                        if let Some(from_field) = self.lookup_field("From") {
+                        if let Some(from_field) = self.get(HeaderDef::From_) {
                             let from_addrs = mailparse::addrparse(&from_field).unwrap();
 
                             if let Some(from_addr) = from_addrs.first() {
@@ -316,7 +318,7 @@ impl<'a> MimeParser<'a> {
             let mut part = Part::default();
             part.typ = Viewtype::Text;
 
-            if let Some(ref subject) = self.subject {
+            if let Some(ref subject) = self.get_subject() {
                 if !self.has_chat_version() {
                     part.msg = subject.to_string();
                 }
@@ -328,6 +330,29 @@ impl<'a> MimeParser<'a> {
         Ok(())
     }
 
+    fn avatar_action_from_header(&mut self, header_value: String) -> AvatarAction {
+        if header_value == "0" {
+            return AvatarAction::Delete;
+        } else {
+            let mut i = 0;
+            while i != self.parts.len() {
+                let part = &mut self.parts[i];
+                if let Some(part_filename) = &part.org_filename {
+                    if part_filename == &header_value {
+                        if let Some(blob) = part.param.get(Param::File) {
+                            let res = AvatarAction::Change(blob.to_string());
+                            self.parts.remove(i);
+                            return res;
+                        }
+                        break;
+                    }
+                }
+                i += 1;
+            }
+        }
+        AvatarAction::None
+    }
+
     pub fn get_last_nonmeta(&self) -> Option<&Part> {
         self.parts.iter().rev().find(|part| !part.is_meta)
     }
@@ -336,12 +361,31 @@ impl<'a> MimeParser<'a> {
         self.parts.iter_mut().rev().find(|part| !part.is_meta)
     }
 
+    pub fn was_encrypted(&self) -> bool {
+        !self.signatures.is_empty()
+    }
+
     pub(crate) fn has_chat_version(&self) -> bool {
         self.header.contains_key("chat-version")
     }
 
-    pub fn lookup_field(&self, field_name: &str) -> Option<&String> {
-        self.header.get(&field_name.to_lowercase())
+    pub(crate) fn has_headers(&self) -> bool {
+        !self.header.is_empty()
+    }
+
+    pub(crate) fn get_subject(&self) -> Option<String> {
+        if let Some(s) = self.get(HeaderDef::Subject) {
+            if s.is_empty() {
+                return None;
+            }
+            Some(s.to_string())
+        } else {
+            None
+        }
+    }
+
+    pub fn get(&self, headerdef: HeaderDef) -> Option<&String> {
+        self.header.get(&headerdef.get_headername())
     }
 
     fn parse_mime_recursive(&mut self, mail: &mailparse::ParsedMail<'_>) -> Result<bool> {
@@ -354,12 +398,7 @@ impl<'a> MimeParser<'a> {
                 return Ok(false);
             }
 
-            if self.parsed_protected_headers {
-                warn!(self.context, "Ignoring nested protected headers");
-            } else {
-                self.hash_header(&mail.headers);
-                self.parsed_protected_headers = true;
-            }
+            warn!(self.context, "Ignoring nested protected headers");
         }
 
         enum MimeS {
@@ -445,6 +484,9 @@ impl<'a> MimeParser<'a> {
                 }
             }
             (mime::MULTIPART, "encrypted") => {
+                // we currently do not try to decrypt non-autocrypt messages
+                // at all. If we see an encrypted part, we set
+                // decrypting_failed.
                 let msg_body = self.context.stock_str(StockMessage::CantDecryptMsgBody);
                 let txt = format!("[{}]", msg_body);
 
@@ -509,10 +551,6 @@ impl<'a> MimeParser<'a> {
         let raw_mime = mail.ctype.mimetype.to_lowercase();
 
         let filename = get_attachment_filename(mail);
-        info!(
-            self.context,
-            "add_single_part_if_known {:?} {:?} {:?}", mime_type, msg_type, filename
-        );
 
         let old_part_count = self.parts.len();
 
@@ -622,6 +660,7 @@ impl<'a> MimeParser<'a> {
         }
 
         part.typ = msg_type;
+        part.org_filename = Some(filename.to_string());
         part.mimetype = Some(mime_type);
         part.bytes = decoded_data.len();
         part.param.set(Param::File, blob.as_name());
@@ -631,50 +670,24 @@ impl<'a> MimeParser<'a> {
     }
 
     fn do_add_single_part(&mut self, mut part: Part) {
-        if self.encrypted {
-            if !self.signatures.is_empty() {
-                part.param.set_int(Param::GuaranteeE2ee, 1);
-            } else {
-                // XXX if the message was encrypted but not signed
-                // it's not neccessarily an error we need to signal.
-                // we could just treat it as if it was not encrypted.
-                part.param.set_int(Param::ErroneousE2ee, 0x2);
-            }
+        if self.was_encrypted() {
+            part.param.set_int(Param::GuaranteeE2ee, 1);
         }
         self.parts.push(part);
     }
 
     pub fn is_mailinglist_message(&self) -> bool {
-        if self.lookup_field("List-Id").is_some() {
+        if self.get(HeaderDef::ListId).is_some() {
             return true;
         }
 
-        if let Some(precedence) = self.lookup_field("Precedence") {
+        if let Some(precedence) = self.get(HeaderDef::Precedence) {
             precedence == "list" || precedence == "bulk"
         } else {
             false
         }
     }
 
-    pub fn sender_equals_recipient(&self) -> bool {
-        /* get From: and check there is exactly one sender */
-        if let Some(field) = self.lookup_field("From") {
-            if let Ok(addrs) = mailparse::addrparse(field) {
-                if addrs.len() != 1 {
-                    return false;
-                }
-                if let mailparse::MailAddr::Single(ref info) = addrs[0] {
-                    let from_addr_norm = addr_normalize(&info.addr);
-                    let recipients = get_recipients(self.header.iter());
-                    if recipients.len() == 1 && recipients.contains(from_addr_norm) {
-                        return true;
-                    }
-                }
-            }
-        }
-        false
-    }
-
     pub fn repl_msg_by_error(&mut self, error_msg: impl AsRef<str>) {
         if self.parts.is_empty() {
             return;
@@ -689,14 +702,14 @@ impl<'a> MimeParser<'a> {
     }
 
     pub fn get_rfc724_mid(&self) -> Option<String> {
-        // get Message-ID from header
-        if let Some(field) = self.lookup_field("Message-ID") {
-            return parse_message_id(field);
+        if let Some(msgid) = self.get(HeaderDef::MessageId) {
+            parse_message_id(msgid)
+        } else {
+            None
         }
-        None
     }
 
-    fn hash_header(&mut self, fields: &[mailparse::MailHeader<'_>]) {
+    fn merge_headers(&mut self, fields: &[mailparse::MailHeader<'_>]) {
         for field in fields {
             if let Ok(key) = field.get_key() {
                 // lowercasing all headers is technically not correct, but makes things work better
@@ -723,9 +736,10 @@ impl<'a> MimeParser<'a> {
         let (report_fields, _) = mailparse::parse_headers(&report_body)?;
 
         // must be present
-        if let Some(_disposition) = report_fields.get_first_value("Disposition").ok().flatten() {
+        let disp = HeaderDef::Disposition.get_headername();
+        if let Some(_disposition) = report_fields.get_first_value(&disp).ok().flatten() {
             if let Some(original_message_id) = report_fields
-                .get_first_value("Original-Message-ID")
+                .get_first_value(&HeaderDef::OriginalMessageId.get_headername())
                 .ok()
                 .flatten()
                 .and_then(|v| parse_message_id(&v))
@@ -860,6 +874,7 @@ pub struct Part {
     pub msg_raw: Option<String>,
     pub bytes: usize,
     pub param: Params,
+    org_filename: Option<String>,
 }
 
 /// return mimetype and viewtype for a parsed mail
@@ -935,7 +950,6 @@ fn get_attachment_filename(mail: &mailparse::ParsedMail) -> Result<String> {
             acc += value;
             acc
         });
-    println!("get_attachment_filename1: {:?}", desired_filename);
 
     if desired_filename.is_empty() {
         if let Some(param) = ct.params.get("name") {
@@ -943,7 +957,6 @@ fn get_attachment_filename(mail: &mailparse::ParsedMail) -> Result<String> {
             desired_filename = param.to_string();
         }
     }
-    println!("get_attachment_filename2: {:?}", desired_filename);
 
     // if there is still no filename, guess one
     if desired_filename.is_empty() {
@@ -953,7 +966,6 @@ fn get_attachment_filename(mail: &mailparse::ParsedMail) -> Result<String> {
             bail!("could not determine filename: {:?}", ct.disposition);
         }
     }
-    println!("get_attachment_filename3: {:?}", desired_filename);
 
     Ok(desired_filename)
 }
@@ -1016,7 +1028,7 @@ mod tests {
         let raw = include_bytes!("../test-data/message/issue_523.txt");
         let mimeparser = MimeParser::from_bytes(&context.ctx, &raw[..]).unwrap();
 
-        assert_eq!(mimeparser.subject, None);
+        assert_eq!(mimeparser.get_subject(), None);
         assert_eq!(mimeparser.parts.len(), 1);
     }
 
@@ -1104,14 +1116,14 @@ mod tests {
         let raw = b"From: hello\n\
                     Content-Type: multipart/mixed; boundary=\"==break==\";\n\
                     Subject: outer-subject\n\
-                    X-Special-A: special-a\n\
-                    Foo: Bar\nChat-Version: 0.0\n\
+                    Secure-Join-Group: no\n\
+                    Test-Header: Bar\nChat-Version: 0.0\n\
                     \n\
                     --==break==\n\
                     Content-Type: text/plain; protected-headers=\"v1\";\n\
                     Subject: inner-subject\n\
-                    X-Special-B: special-b\n\
-                    Foo: Xy\n\
+                    SecureBar-Join-Group: yes\n\
+                    Test-Header: Xy\n\
                     Chat-Version: 1.0\n\
                     \n\
                     test1\n\
@@ -1119,18 +1131,65 @@ mod tests {
                     --==break==--\n\
                     \n\
                     \x00";
+
         let mimeparser = MimeParser::from_bytes(&context.ctx, &raw[..]).unwrap();
 
-        assert_eq!(mimeparser.subject, Some("inner-subject".into()));
+        // non-overwritten headers do not bubble up
+        let of = mimeparser.get(HeaderDef::SecureJoinGroup).unwrap();
+        assert_eq!(of, "no");
 
-        let of = mimeparser.lookup_field("X-Special-A").unwrap();
-        assert_eq!(of, "special-a");
-
-        let of = mimeparser.lookup_field("Foo").unwrap();
+        // unknown headers do not bubble upwards
+        let of = mimeparser.get(HeaderDef::_TestHeader).unwrap();
         assert_eq!(of, "Bar");
 
-        let of = mimeparser.lookup_field("Chat-Version").unwrap();
-        assert_eq!(of, "1.0");
+        // the following fields would bubble up
+        // if the test would really use encryption for the protected part
+        // however, as this is not the case, the outer things stay valid
+        assert_eq!(mimeparser.get_subject(), Some("outer-subject".into()));
+
+        let of = mimeparser.get(HeaderDef::ChatVersion).unwrap();
+        assert_eq!(of, "0.0");
         assert_eq!(mimeparser.parts.len(), 1);
     }
+
+    #[test]
+    fn test_mimeparser_with_avatars() {
+        let t = dummy_context();
+
+        let raw = include_bytes!("../test-data/message/mail_attach_txt.eml");
+        let mimeparser = MimeParser::from_bytes(&t.ctx, &raw[..]).unwrap();
+        assert_eq!(mimeparser.user_avatar, AvatarAction::None);
+        assert_eq!(mimeparser.group_avatar, AvatarAction::None);
+
+        let raw = include_bytes!("../test-data/message/mail_with_user_avatar.eml");
+        let mimeparser = MimeParser::from_bytes(&t.ctx, &raw[..]).unwrap();
+        assert_eq!(mimeparser.parts.len(), 1);
+        assert_eq!(mimeparser.parts[0].typ, Viewtype::Text);
+        assert!(mimeparser.user_avatar.is_change());
+        assert_eq!(mimeparser.group_avatar, AvatarAction::None);
+
+        let raw = include_bytes!("../test-data/message/mail_with_user_avatar_deleted.eml");
+        let mimeparser = MimeParser::from_bytes(&t.ctx, &raw[..]).unwrap();
+        assert_eq!(mimeparser.parts.len(), 1);
+        assert_eq!(mimeparser.parts[0].typ, Viewtype::Text);
+        assert_eq!(mimeparser.user_avatar, AvatarAction::Delete);
+        assert_eq!(mimeparser.group_avatar, AvatarAction::None);
+
+        let raw = include_bytes!("../test-data/message/mail_with_user_and_group_avatars.eml");
+        let mimeparser = MimeParser::from_bytes(&t.ctx, &raw[..]).unwrap();
+        assert_eq!(mimeparser.parts.len(), 1);
+        assert_eq!(mimeparser.parts[0].typ, Viewtype::Text);
+        assert!(mimeparser.user_avatar.is_change());
+        assert!(mimeparser.group_avatar.is_change());
+
+        // if the Chat-User-Avatar header is missing, the avatar become a normal attachment
+        let raw = include_bytes!("../test-data/message/mail_with_user_and_group_avatars.eml");
+        let raw = String::from_utf8_lossy(raw).to_string();
+        let raw = raw.replace("Chat-User-Avatar:", "Xhat-Xser-Xvatar:");
+        let mimeparser = MimeParser::from_bytes(&t.ctx, raw.as_bytes()).unwrap();
+        assert_eq!(mimeparser.parts.len(), 1);
+        assert_eq!(mimeparser.parts[0].typ, Viewtype::Image);
+        assert_eq!(mimeparser.user_avatar, AvatarAction::None);
+        assert!(mimeparser.group_avatar.is_change());
+    }
 }

src/param.rs

@@ -48,6 +48,10 @@ pub enum Param {
     Arg4 = b'H',
     /// For Messages
     Error = b'L',
+
+    /// For Messages
+    AttachGroupImage = b'A',
+
     /// For Messages: space-separated list of messaged IDs of forwarded copies.
     ///
     /// This is used when a [crate::message::Message] is in the
@@ -192,6 +196,11 @@ impl Params {
         self.get(key).and_then(|s| s.parse().ok())
     }
 
+    /// Get the given parameter and parse as `bool`.
+    pub fn get_bool(&self, key: Param) -> Option<bool> {
+        self.get_int(key).map(|v| v != 0)
+    }
+
     /// Get the parameter behind `Param::Cmd` interpreted as `SystemMessage`.
     pub fn get_cmd(&self) -> SystemMessage {
         self.get_int(Param::Cmd)
@@ -250,7 +259,7 @@ impl Params {
         let file = ParamsFile::from_param(context, val)?;
         let blob = match file {
             ParamsFile::FsPath(path) => match create {
-                true => BlobObject::create_from_path(context, path)?,
+                true => BlobObject::new_from_path(context, path)?,
                 false => BlobObject::from_path(context, path)?,
             },
             ParamsFile::Blob(blob) => blob,

src/peerstate.rs

@@ -417,7 +417,7 @@ impl<'a> Peerstate<'a> {
                     &self.addr,
                 ],
             )?;
-            reset_gossiped_timestamp(self.context, 0);
+            reset_gossiped_timestamp(self.context, 0)?;
         } else if self.to_save == Some(ToSave::Timestamps) {
             sql::execute(
                 self.context,

src/securejoin.rs

@@ -11,6 +11,7 @@ use crate::context::Context;
 use crate::e2ee::*;
 use crate::error::Error;
 use crate::events::Event;
+use crate::headerdef::HeaderDef;
 use crate::key::*;
 use crate::lot::LotState;
 use crate::message::Message;
@@ -350,7 +351,7 @@ pub(crate) fn handle_securejoin_handshake(
         "handle_securejoin_handshake(): called with special contact id"
     );
     let step = mimeparser
-        .lookup_field("Secure-Join")
+        .get(HeaderDef::SecureJoin)
         .ok_or_else(|| format_err!("This message is not a Secure-Join message"))?;
 
     info!(
@@ -378,7 +379,7 @@ pub(crate) fn handle_securejoin_handshake(
             // it just ensures, we have Bobs key now. If we do _not_ have the key because eg. MitM has removed it,
             // send_message() will fail with the error "End-to-end-encryption unavailable unexpectedly.", so, there is no additional check needed here.
             // verify that the `Secure-Join-Invitenumber:`-header matches invitenumber written to the QR code
-            let invitenumber = match mimeparser.lookup_field("Secure-Join-Invitenumber") {
+            let invitenumber = match mimeparser.get(HeaderDef::SecureJoinInvitenumber) {
                 Some(n) => n,
                 None => {
                     warn!(context, "Secure-join denied (invitenumber missing).",);
@@ -422,7 +423,7 @@ pub(crate) fn handle_securejoin_handshake(
                 could_not_establish_secure_connection(
                     context,
                     contact_chat_id,
-                    if mimeparser.encrypted {
+                    if mimeparser.was_encrypted() {
                         "No valid signature."
                     } else {
                         "Not encrypted."
@@ -467,7 +468,7 @@ pub(crate) fn handle_securejoin_handshake(
             ====  Step 6 in "Out-of-band verified groups" protocol  ====
             ============================================================ */
             // verify that Secure-Join-Fingerprint:-header matches the fingerprint of Bob
-            let fingerprint = match mimeparser.lookup_field("Secure-Join-Fingerprint") {
+            let fingerprint = match mimeparser.get(HeaderDef::SecureJoinFingerprint) {
                 Some(fp) => fp,
                 None => {
                     could_not_establish_secure_connection(
@@ -496,7 +497,7 @@ pub(crate) fn handle_securejoin_handshake(
             }
             info!(context, "Fingerprint verified.",);
             // verify that the `Secure-Join-Auth:`-header matches the secret written to the QR code
-            let auth_0 = match mimeparser.lookup_field("Secure-Join-Auth") {
+            let auth_0 = match mimeparser.get(HeaderDef::SecureJoinAuth) {
                 Some(auth) => auth,
                 None => {
                     could_not_establish_secure_connection(
@@ -526,7 +527,7 @@ pub(crate) fn handle_securejoin_handshake(
             inviter_progress!(context, contact_id, 600);
             if join_vg {
                 let field_grpid = mimeparser
-                    .lookup_field("Secure-Join-Group")
+                    .get(HeaderDef::SecureJoinGroup)
                     .map(|s| s.as_str())
                     .unwrap_or_else(|| "");
                 let (group_chat_id, _, _) = chat::get_chat_id_by_grpid(context, field_grpid);
@@ -600,10 +601,10 @@ pub(crate) fn handle_securejoin_handshake(
             Contact::scaleup_origin_by_id(context, contact_id, Origin::SecurejoinJoined);
             emit_event!(context, Event::ContactsChanged(None));
             let cg_member_added = mimeparser
-                .lookup_field("Chat-Group-Member-Added")
+                .get(HeaderDef::ChatGroupMemberAdded)
                 .map(|s| s.as_str())
                 .unwrap_or_else(|| "");
-            if join_vg && !addr_equals_self(context, cg_member_added) {
+            if join_vg && !context.is_self_addr(cg_member_added)? {
                 info!(context, "Message belongs to a different handshake (scaled up contact anyway to allow creation of group).");
                 return Ok(ret);
             }
@@ -635,7 +636,7 @@ pub(crate) fn handle_securejoin_handshake(
                 inviter_progress!(context, contact_id, 800);
                 inviter_progress!(context, contact_id, 1000);
                 let field_grpid = mimeparser
-                    .lookup_field("Secure-Join-Group")
+                    .get(HeaderDef::SecureJoinGroup)
                     .map(|s| s.as_str())
                     .unwrap_or_else(|| "");
                 let (group_chat_id, _, _) = chat::get_chat_id_by_grpid(context, &field_grpid);
@@ -717,7 +718,7 @@ fn mark_peer_as_verified(context: &Context, fingerprint: impl AsRef<str>) -> Res
  ******************************************************************************/
 
 fn encrypted_and_signed(mimeparser: &MimeParser, expected_fingerprint: impl AsRef<str>) -> bool {
-    if !mimeparser.encrypted {
+    if !mimeparser.was_encrypted() {
         warn!(mimeparser.context, "Message not encrypted.",);
         false
     } else if mimeparser.signatures.is_empty() {

src/smtp/mod.rs

@@ -2,13 +2,15 @@
 
 pub mod send;
 
-use lettre::smtp::client::net::*;
-use lettre::*;
+use async_smtp::smtp::client::net::*;
+use async_smtp::*;
+
+use async_std::task;
 
 use crate::constants::*;
 use crate::context::Context;
 use crate::events::Event;
-use crate::login_param::{dc_build_tls_config, LoginParam};
+use crate::login_param::{dc_build_tls, LoginParam};
 use crate::oauth2::*;
 
 #[derive(Debug, Fail)]
@@ -19,14 +21,22 @@ pub enum Error {
     InvalidLoginAddress {
         address: String,
         #[cause]
-        error: lettre::error::Error,
+        error: async_smtp::error::Error,
     },
     #[fail(display = "SMTP failed to connect: {:?}", _0)]
-    ConnectionFailure(#[cause] lettre::smtp::error::Error),
+    ConnectionFailure(#[cause] async_smtp::smtp::error::Error),
     #[fail(display = "SMTP: failed to setup connection {:?}", _0)]
-    ConnectionSetupFailure(#[cause] lettre::smtp::error::Error),
+    ConnectionSetupFailure(#[cause] async_smtp::smtp::error::Error),
     #[fail(display = "SMTP: oauth2 error {:?}", _0)]
     Oauth2Error { address: String },
+    #[fail(display = "TLS error")]
+    Tls(#[cause] native_tls::Error),
+}
+
+impl From<native_tls::Error> for Error {
+    fn from(err: native_tls::Error) -> Error {
+        Error::Tls(err)
+    }
 }
 
 pub type Result<T> = std::result::Result<T, Error>;
@@ -34,8 +44,7 @@ pub type Result<T> = std::result::Result<T, Error>;
 #[derive(Default, DebugStub)]
 pub struct Smtp {
     #[debug_stub(some = "SmtpTransport")]
-    transport: Option<lettre::smtp::SmtpTransport>,
-    transport_connected: bool,
+    transport: Option<async_smtp::smtp::SmtpTransport>,
     /// Email address we are sending from.
     from: Option<EmailAddress>,
 }
@@ -48,16 +57,12 @@ impl Smtp {
 
     /// Disconnect the SMTP transport and drop it entirely.
     pub fn disconnect(&mut self) {
-        if self.transport.is_none() || !self.transport_connected {
-            return;
+        if let Some(ref mut transport) = self.transport.take() {
+            transport.close();
         }
-
-        let mut transport = self.transport.take().unwrap();
-        transport.close();
-        self.transport_connected = false;
     }
 
-    /// Check if a connection already exists.
+    /// check whether we are connected
     pub fn is_connected(&self) -> bool {
         self.transport.is_some()
     }
@@ -84,7 +89,7 @@ impl Smtp {
         let domain = &lp.send_server;
         let port = lp.send_port as u16;
 
-        let tls_config = dc_build_tls_config(lp.smtp_certificate_checks);
+        let tls_config = dc_build_tls(lp.smtp_certificate_checks)?.into();
         let tls_parameters = ClientTlsParameters::new(domain.to_string(), tls_config);
 
         let (creds, mechanism) = if 0 != lp.server_flags & (DC_LP_AUTH_OAUTH2 as i32) {
@@ -99,21 +104,21 @@ impl Smtp {
             }
             let user = &lp.send_user;
             (
-                lettre::smtp::authentication::Credentials::new(
+                async_smtp::smtp::authentication::Credentials::new(
                     user.to_string(),
                     access_token.unwrap_or_default(),
                 ),
-                vec![lettre::smtp::authentication::Mechanism::Xoauth2],
+                vec![async_smtp::smtp::authentication::Mechanism::Xoauth2],
             )
         } else {
             // plain
             let user = lp.send_user.clone();
             let pw = lp.send_pw.clone();
             (
-                lettre::smtp::authentication::Credentials::new(user, pw),
+                async_smtp::smtp::authentication::Credentials::new(user, pw),
                 vec![
-                    lettre::smtp::authentication::Mechanism::Plain,
-                    lettre::smtp::authentication::Mechanism::Login,
+                    async_smtp::smtp::authentication::Mechanism::Plain,
+                    async_smtp::smtp::authentication::Mechanism::Login,
                 ],
             )
         };
@@ -121,24 +126,26 @@ impl Smtp {
         let security = if 0
             != lp.server_flags & (DC_LP_SMTP_SOCKET_STARTTLS | DC_LP_SMTP_SOCKET_PLAIN) as i32
         {
-            lettre::smtp::ClientSecurity::Opportunistic(tls_parameters)
+            async_smtp::smtp::ClientSecurity::Opportunistic(tls_parameters)
         } else {
-            lettre::smtp::ClientSecurity::Wrapper(tls_parameters)
+            async_smtp::smtp::ClientSecurity::Wrapper(tls_parameters)
         };
 
-        let client = lettre::smtp::SmtpClient::new((domain.as_str(), port), security)
-            .map_err(Error::ConnectionSetupFailure)?;
+        let client = task::block_on(async_smtp::smtp::SmtpClient::with_security(
+            (domain.as_str(), port),
+            security,
+        ))
+        .map_err(Error::ConnectionSetupFailure)?;
 
         let client = client
             .smtp_utf8(true)
             .credentials(creds)
             .authentication_mechanism(mechanism)
-            .connection_reuse(lettre::smtp::ConnectionReuseParameters::ReuseUnlimited);
-        let mut trans = client.transport();
-        trans.connect().map_err(Error::ConnectionFailure)?;
+            .connection_reuse(async_smtp::smtp::ConnectionReuseParameters::ReuseUnlimited);
+        let mut trans = client.into_transport();
+        task::block_on(trans.connect()).map_err(Error::ConnectionFailure)?;
 
         self.transport = Some(trans);
-        self.transport_connected = true;
         context.call_cb(Event::SmtpConnected(format!(
             "SMTP-LOGIN as {} ok",
             lp.send_user,

src/smtp/send.rs

@@ -1,7 +1,7 @@
 //! # SMTP message sending
 
 use super::Smtp;
-use lettre::*;
+use async_smtp::*;
 
 use crate::context::Context;
 use crate::events::Event;
@@ -11,9 +11,9 @@ pub type Result<T> = std::result::Result<T, Error>;
 #[derive(Debug, Fail)]
 pub enum Error {
     #[fail(display = "Envelope error: {}", _0)]
-    EnvelopeError(#[cause] lettre::error::Error),
+    EnvelopeError(#[cause] async_smtp::error::Error),
     #[fail(display = "Send error: {}", _0)]
-    SendError(#[cause] lettre::smtp::error::Error),
+    SendError(#[cause] async_smtp::smtp::error::Error),
     #[fail(display = "SMTP has no transport")]
     NoTransport,
 }
@@ -21,7 +21,7 @@ pub enum Error {
 impl Smtp {
     /// Send a prepared mail to recipients.
     /// On successful send out Ok() is returned.
-    pub fn send(
+    pub async fn send(
         &mut self,
         context: &Context,
         recipients: Vec<EmailAddress>,
@@ -36,22 +36,21 @@ impl Smtp {
             .collect::<Vec<String>>()
             .join(",");
 
+        let envelope =
+            Envelope::new(self.from.clone(), recipients).map_err(Error::EnvelopeError)?;
+        let mail = SendableEmail::new(
+            envelope,
+            format!("{}", job_id), // only used for internal logging
+            message,
+        );
         if let Some(ref mut transport) = self.transport {
-            let envelope =
-                Envelope::new(self.from.clone(), recipients).map_err(Error::EnvelopeError)?;
-            let mail = SendableEmail::new(
-                envelope,
-                format!("{}", job_id), // only used for internal logging
-                message,
-            );
-
-            transport.send(mail).map_err(Error::SendError)?;
+            transport.send(mail).await.map_err(Error::SendError)?;
 
             context.call_cb(Event::SmtpMessageSent(format!(
                 "Message len={} was smtp-sent to {}",
                 message_len, recipients_display
             )));
-            self.transport_connected = true;
+
             Ok(())
         } else {
             warn!(

src/sql.rs

@@ -7,7 +7,7 @@ use std::time::Duration;
 use rusqlite::{Connection, OpenFlags, Statement, NO_PARAMS};
 use thread_local_object::ThreadLocal;
 
-use crate::chat::update_saved_messages_icon;
+use crate::chat::{update_device_icon, update_saved_messages_icon};
 use crate::constants::ShowEmails;
 use crate::context::Context;
 use crate::dc_tools::*;
@@ -848,7 +848,6 @@ fn open(
             if exists_before_update && sql.get_raw_config_int(context, "bcc_self").is_none() {
                 sql.set_raw_config_int(context, "bcc_self", 1)?;
             }
-            update_icons = true;
             sql.set_raw_config_int(context, "dbversion", 59)?;
         }
         if dbversion < 60 {
@@ -859,6 +858,15 @@ fn open(
             )?;
             sql.set_raw_config_int(context, "dbversion", 60)?;
         }
+        if dbversion < 61 {
+            info!(context, "[migration] v61");
+            sql.execute(
+                "ALTER TABLE contacts ADD COLUMN selfavatar_sent INTEGER DEFAULT 0;",
+                NO_PARAMS,
+            )?;
+            update_icons = true;
+            sql.set_raw_config_int(context, "dbversion", 61)?;
+        }
 
         // (2) updates that require high-level objects
         // (the structure is complete now and all objects are usable)
@@ -884,6 +892,7 @@ fn open(
         }
         if update_icons {
             update_saved_messages_icon(context)?;
+            update_device_icon(context)?;
         }
     }
 

test-data/message/mail_with_user_and_group_avatars.eml

@@ -0,0 +1,55 @@
+Chat-Group-ID: WVnDtF5azch
+Chat-Group-Name: =?utf-8?q?testgr1?=
+Chat-Group-Avatar: group-image.png
+Chat-User-Avatar: avatar.png
+Subject: =?utf-8?q?Chat=3A_testgr1=3A_hi!_?=
+Date: Thu, 12 Dec 2019 17:24:03 +0000
+X-Mailer: Delta Chat Core 1.0.0-beta.15/CLI
+Chat-Version: 1.0
+Message-ID: <Gr.WVnDtF5azch.c6vUZfnnXYx@testrun.org>
+To: <bpetersen@b44t.com>
+From: =?utf-8?q??= <tunis4@testrun.org>
+Content-Type: multipart/mixed; boundary="LV8nfXkpyyn39fsVyoB1b29PKDMeb5"
+
+
+--LV8nfXkpyyn39fsVyoB1b29PKDMeb5
+Content-Type: text/plain; charset=utf-8
+
+hi! 
+
+-- 
+Sent with my Delta Chat Messenger: https://delta.chat
+
+--LV8nfXkpyyn39fsVyoB1b29PKDMeb5
+Content-Type: image/png
+Content-Disposition: attachment; filename="group-image.png"
+Content-Transfer-Encoding: base64
+
+iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAIAAACQkWg2AAABhGlDQ1BJQ0MgcHJvZmlsZQAAKJF9kT
+1Iw0AYht+mSqVUHCwi4pChOlkQFXHUKhShQqgVWnUwufQPmjQkKS6OgmvBwZ/FqoOLs64OroIg+APi
+4uqk6CIlfpcUWsR4x3EP733vy913gNCoMM3qGgc03TbTyYSYza2KoVdEEMYATUFmljEnSSn4jq97BP
+h+F+dZ/nV/jl41bzEgIBLPMsO0iTeIpzdtg/M+cZSVZJX4nHjMpAsSP3Jd8fiNc9FlgWdGzUx6njhK
+LBY7WOlgVjI14inimKrplC9kPVY5b3HWKjXWuid/YSSvryxzndYwkljEEiSIUFBDGRXYiNOuk2IhTe
+cJH/+Q65fIpZCrDEaOBVShQXb94H/wu7dWYXLCS4okgO4Xx/kYAUK7QLPuON/HjtM8AYLPwJXe9lcb
+wMwn6fW2FjsC+raBi+u2puwBlzvA4JMhm7IrBWkJhQLwfkbflAP6b4Hwmte31jlOH4AM9Sp1AxwcAq
+NFyl73eXdPZ9/+rWn17wcR7HKATfSiTAAAAAlwSFlzAAAuIwAALiMBeKU/dgAAAAd0SU1FB+MMChYX
+Fh+1IOwAAAAZdEVYdENvbW1lbnQAQ3JlYXRlZCB3aXRoIEdJTVBXgQ4XAAAAGElEQVQoz2P858hAEm
+BiYBjVMKphuGoAAAO8AV+n297RAAAAAElFTkSuQmCC
+
+--LV8nfXkpyyn39fsVyoB1b29PKDMeb5
+Content-Type: image/png
+Content-Disposition: attachment; filename="avatar.png"
+Content-Transfer-Encoding: base64
+
+iVBORw0KGgoAAAANSUhEUgAAABAAAAAQAQMAAAAlPW0iAAABhGlDQ1BJQ0MgcHJvZmlsZQAAKJF9kT
+1Iw0AcxV9TpUUqIhYRcchQnSyIFXHUKhShQqgVWnUwufQLmjQkKS6OgmvBwY/FqoOLs64OroIg+AHi
+4uqk6CIl/q8ptIjx4Lgf7+497t4BQr3MNKtrAtB020wl4mImuyoGXhFCEIOIoV9mljEnSUl4jq97+P
+h6F+VZ3uf+HL1qzmKATySeZYZpE28QT2/aBud94jAryirxOfG4SRckfuS64vIb50KTBZ4ZNtOpeeIw
+sVjoYKWDWdHUiKeII6qmU76QcVnlvMVZK1dZ6578haGcvrLMdZojSGARS5AgQkEVJZRhI0qrToqFFO
+3HPfzDTb9ELoVcJTByLKACDXLTD/4Hv7u18rFJNykUB7pfHOdjFAjsAo2a43wfO07jBPA/A1d621+p
+AzOfpNfaWuQI6NsGLq7bmrIHXO4AQ0+GbMpNyU9TyOeB9zP6piwwcAv0rLm9tfZx+gCkqavkDXBwCI
+wVKHvd493Bzt7+PdPq7wd6nHKqMKZUTAAAAANQTFRF/sYAhYATyAAAAAlwSFlzAAAuIwAALiMBeKU/
+dgAAAAd0SU1FB+MMCBY0D29+N8YAAAAZdEVYdENvbW1lbnQAQ3JlYXRlZCB3aXRoIEdJTVBXgQ4XAA
+AADElEQVQI12NgIA0AAAAwAAHHqoWOAAAAAElFTkSuQmCC
+
+--LV8nfXkpyyn39fsVyoB1b29PKDMeb5--

test-data/message/mail_with_user_avatar.eml

@@ -0,0 +1,37 @@
+Chat-User-Avatar: avatar.png
+Subject: =?utf-8?q?Chat=3A_this_is_a_message_with_a_=2E=2E=2E?=
+Message-ID: Mr.wOBwZNbBTVt.NZpmQDwWoNk@example.org
+In-Reply-To: Mr.ETXqza5-WpB.zDEYOLECxAw@example.org
+Date: Sun, 08 Dec 2019 23:12:55 +0000
+X-Mailer: Delta Chat Core 1.0.0-beta.12/CLI
+Chat-Version: 1.0
+To: <tunis3@example.org>
+From: "=?utf-8?q??=" <tunis4@example.org>
+Content-Type: multipart/mixed; boundary="luTiGu6GBoVLCvTkzVtmZmwsmhkNMw"
+
+
+--luTiGu6GBoVLCvTkzVtmZmwsmhkNMw
+Content-Type: text/plain; charset=utf-8
+
+this is a message with a profile-image attached
+
+-- 
+Sent with my Delta Chat Messenger: https://delta.chat
+
+--luTiGu6GBoVLCvTkzVtmZmwsmhkNMw
+Content-Type: image/png
+Content-Disposition: attachment; filename="avatar.png"
+Content-Transfer-Encoding: base64
+
+iVBORw0KGgoAAAANSUhEUgAAABAAAAAQAQMAAAAlPW0iAAABhGlDQ1BJQ0MgcHJvZmlsZQAAKJF9kT
+1Iw0AcxV9TpUUqIhYRcchQnSyIFXHUKhShQqgVWnUwufQLmjQkKS6OgmvBwY/FqoOLs64OroIg+AHi
+4uqk6CIl/q8ptIjx4Lgf7+497t4BQr3MNKtrAtB020wl4mImuyoGXhFCEIOIoV9mljEnSUl4jq97+P
+h6F+VZ3uf+HL1qzmKATySeZYZpE28QT2/aBud94jAryirxOfG4SRckfuS64vIb50KTBZ4ZNtOpeeIw
+sVjoYKWDWdHUiKeII6qmU76QcVnlvMVZK1dZ6578haGcvrLMdZojSGARS5AgQkEVJZRhI0qrToqFFO
+3HPfzDTb9ELoVcJTByLKACDXLTD/4Hv7u18rFJNykUB7pfHOdjFAjsAo2a43wfO07jBPA/A1d621+p
+AzOfpNfaWuQI6NsGLq7bmrIHXO4AQ0+GbMpNyU9TyOeB9zP6piwwcAv0rLm9tfZx+gCkqavkDXBwCI
+wVKHvd493Bzt7+PdPq7wd6nHKqMKZUTAAAAANQTFRF/sYAhYATyAAAAAlwSFlzAAAuIwAALiMBeKU/
+dgAAAAd0SU1FB+MMCBY0D29+N8YAAAAZdEVYdENvbW1lbnQAQ3JlYXRlZCB3aXRoIEdJTVBXgQ4XAA
+AADElEQVQI12NgIA0AAAAwAAHHqoWOAAAAAElFTkSuQmCC
+
+--luTiGu6GBoVLCvTkzVtmZmwsmhkNMw--

test-data/message/mail_with_user_avatar_deleted.eml

@@ -0,0 +1,14 @@
+Content-Type: text/plain; charset=utf-8
+Chat-User-Avatar: 0
+Subject: =?utf-8?q?Chat=3A_profile_image_deleted?=
+Message-ID: Mr.tsgoJgn-cBf.0TkFWKJzeSp@example.org
+Date: Sun, 08 Dec 2019 23:28:30 +0000
+X-Mailer: Delta Chat Core 1.0.0-beta.12/CLI
+Chat-Version: 1.0
+To: <tunis3@example>
+From: "=?utf-8?q??=" <tunis4@example.org>
+
+profile image deleted
+
+-- 
+Sent with my Delta Chat Messenger: https://delta.chat

tests/stress.rs

@@ -2,9 +2,7 @@
 
 use std::collections::HashSet;
 
-use deltachat::chat::{self, Chat};
 use deltachat::config;
-use deltachat::contact::*;
 use deltachat::context::*;
 use deltachat::keyring::*;
 use deltachat::pgp;
@@ -227,20 +225,3 @@ fn test_stress_tests() {
     let context = create_test_context();
     stress_functions(&context.ctx);
 }
-
-#[test]
-fn test_chat() {
-    let context = create_test_context();
-    let contact1 = Contact::create(&context.ctx, "bob", "bob@mail.de").unwrap();
-    assert_ne!(contact1, 0);
-
-    let chat_id = chat::create_by_contact_id(&context.ctx, contact1).unwrap();
-    assert!(chat_id > 9, "chat_id too small {}", chat_id);
-    let chat = Chat::load_from_db(&context.ctx, chat_id).unwrap();
-
-    let chat2_id = chat::create_by_contact_id(&context.ctx, contact1).unwrap();
-    assert_eq!(chat2_id, chat_id);
-    let chat2 = Chat::load_from_db(&context.ctx, chat2_id).unwrap();
-
-    assert_eq!(chat2.name, chat.name);
-}