remove ok-to-continue from chat.rs

no functional code change: rename dc_mimefactory to mimefactory and move some functions to become MimeFactory methods
2026-04-02 13:32:11 +03:00 · 2019-09-23 20:02:51 +02:00 · 2019-09-23 19:22:26 +02:00
59 changed files with 2803 additions and 2567 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -16,7 +16,6 @@ python/.tox
 *.egg-info
 __pycache__
 python/src/deltachat/capi*.so
-python/.venv/

 python/liveconfig*

--- a/Cargo.lock
+++ b/Cargo.lock
@@ -84,7 +84,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
 name = "backtrace"
-version = "0.3.38"
+version = "0.3.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "backtrace-sys 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -130,7 +130,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
 name = "bitflags"
-version = "1.2.0"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
@@ -317,7 +317,7 @@ name = "cloudabi"
 version = "0.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
@@ -419,7 +419,7 @@ dependencies = [

 [[package]]
 name = "ctor"
-version = "0.1.11"
+version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -481,11 +481,11 @@ dependencies = [

 [[package]]
 name = "deltachat"
-version = "1.0.0-alpha.5"
+version = "1.0.0-alpha.4"
 dependencies = [
- "backtrace 0.3.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.37 (registry+https://github.com/rust-lang/crates.io-index)",
 "base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "bitflags 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "charset 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "chrono 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -508,6 +508,7 @@ dependencies = [
 "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 "percent-encoding 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "pgp 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "phf 0.7.24 (git+https://github.com/sfackler/rust-phf?rev=0d00821)",
 "pretty_assertions 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "pretty_env_logger 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "proptest 0.9.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -530,8 +531,8 @@ dependencies = [
 ]

 [[package]]
-name = "deltachat-provider-database"
-version = "0.2.1"
+name = "deltachat-provider-overview"
+version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "glob 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -550,10 +551,10 @@ dependencies = [

 [[package]]
 name = "deltachat_ffi"
-version = "1.0.0-alpha.5"
+version = "1.0.0-alpha.4"
 dependencies = [
- "deltachat 1.0.0-alpha.5",
- "deltachat-provider-database 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "deltachat 1.0.0-alpha.4",
+ "deltachat-provider-overview 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "human-panic 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
 "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -686,7 +687,7 @@ name = "error-chain"
 version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.37 (registry+https://github.com/rust-lang/crates.io-index)",
 "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

@@ -703,7 +704,7 @@ name = "failure"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.37 (registry+https://github.com/rust-lang/crates.io-index)",
 "failure_derive 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

@@ -779,7 +780,7 @@ name = "fuchsia-zircon"
 version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

@@ -900,7 +901,7 @@ name = "human-panic"
 version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "backtrace 0.3.37 (registry+https://github.com/rust-lang/crates.io-index)",
 "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "os_type 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "serde 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1088,7 +1089,7 @@ dependencies = [

 [[package]]
 name = "lexical-core"
-version = "0.4.6"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "arrayvec 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1299,7 +1300,7 @@ name = "nix"
 version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "cc 1.0.45 (registry+https://github.com/rust-lang/crates.io-index)",
 "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1325,7 +1326,7 @@ name = "nom"
 version = "5.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "lexical-core 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lexical-core 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1408,7 +1409,7 @@ name = "openssl"
 version = "0.10.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "cfg-if 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
 "foreign-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1600,6 +1601,46 @@ dependencies = [
 "x25519-dalek 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "phf"
+version = "0.7.24"
+source = "git+https://github.com/sfackler/rust-phf?rev=0d00821#0d0082178568036736bb6d51cb91f95ca5a616c3"
+dependencies = [
+ "phf_macros 0.7.24 (git+https://github.com/sfackler/rust-phf?rev=0d00821)",
+ "phf_shared 0.7.24 (git+https://github.com/sfackler/rust-phf?rev=0d00821)",
+ "proc-macro-hack 0.5.9 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "phf_generator"
+version = "0.7.24"
+source = "git+https://github.com/sfackler/rust-phf?rev=0d00821#0d0082178568036736bb6d51cb91f95ca5a616c3"
+dependencies = [
+ "phf_shared 0.7.24 (git+https://github.com/sfackler/rust-phf?rev=0d00821)",
+ "rand 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "phf_macros"
+version = "0.7.24"
+source = "git+https://github.com/sfackler/rust-phf?rev=0d00821#0d0082178568036736bb6d51cb91f95ca5a616c3"
+dependencies = [
+ "phf_generator 0.7.24 (git+https://github.com/sfackler/rust-phf?rev=0d00821)",
+ "phf_shared 0.7.24 (git+https://github.com/sfackler/rust-phf?rev=0d00821)",
+ "proc-macro-hack 0.5.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "phf_shared"
+version = "0.7.24"
+source = "git+https://github.com/sfackler/rust-phf?rev=0d00821#0d0082178568036736bb6d51cb91f95ca5a616c3"
+dependencies = [
+ "siphasher 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "pkg-config"
 version = "0.3.16"
@@ -1616,7 +1657,7 @@ version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ctor 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ctor 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
 "difference 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "output_vt100 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1631,6 +1672,16 @@ dependencies = [
 "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "proc-macro-hack"
+version = "0.5.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "0.4.30"
@@ -1641,7 +1692,7 @@ dependencies = [

 [[package]]
 name = "proc-macro2"
-version = "1.0.4"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1653,7 +1704,7 @@ version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "bit-set 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "bitflags 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1683,7 +1734,7 @@ name = "pulldown-cmark"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
@@ -1721,7 +1772,7 @@ name = "quote"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
@@ -1784,6 +1835,7 @@ dependencies = [
 "rand_chacha 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand_hc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_pcg 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
@@ -1881,6 +1933,15 @@ dependencies = [
 "rand_core 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "rand_pcg"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "autocfg 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "rand_xorshift"
 version = "0.1.1"
@@ -2002,7 +2063,7 @@ name = "rusqlite"
 version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "fallible-iterator 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "fallible-streaming-iterator 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
 "libsqlite3-sys 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2152,7 +2213,7 @@ name = "serde_derive"
 version = "1.0.101"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
 "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "syn 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2212,6 +2273,11 @@ dependencies = [
 "opaque-debug 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "siphasher"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "skeptic"
 version = "0.13.4"
@@ -2289,7 +2355,7 @@ version = "0.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro2 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
 "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "syn 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2334,7 +2400,7 @@ name = "syn"
 version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "proc-macro2 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
 "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2860,13 +2926,13 @@ dependencies = [
 "checksum ascii_utils 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)" = "71938f30533e4d95a6d17aa530939da3842c2ab6f4f84b9dae68447e4129f74a"
 "checksum atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)" = "1803c647a3ec87095e7ae7acfca019e98de5ec9a7d01343f611cf3152ed71a90"
 "checksum autocfg 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "b671c8fb71b457dd4ae18c4ba1e59aa81793daacc361d82fcd410cef0d491875"
-"checksum backtrace 0.3.38 (registry+https://github.com/rust-lang/crates.io-index)" = "690a62be8920ccf773ee00ef0968649b0e724cda8bd5b12286302b4ae955fdf5"
+"checksum backtrace 0.3.37 (registry+https://github.com/rust-lang/crates.io-index)" = "5180c5a20655b14a819b652fd2378fa5f1697b6c9ddad3e695c2f9cedf6df4e2"
 "checksum backtrace-sys 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)" = "82a830b4ef2d1124a711c71d263c5abdc710ef8e907bd508c88be475cebc422b"
 "checksum base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0b25d992356d2eb0ed82172f5248873db5560c4721f564b13cb5193bda5e668e"
 "checksum bit-set 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "e84c238982c4b1e1ee668d136c510c67a13465279c0cb367ea6baf6310620a80"
 "checksum bit-vec 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f59bbe95d4e52a6398ec21238d31577f2b28a9d86807f06ca59d191d8440d0bb"
 "checksum bitfield 0.13.2 (registry+https://github.com/rust-lang/crates.io-index)" = "46afbd2983a5d5a7bd740ccb198caf5b82f45c40c09c0eed36052d91cb92e719"
-"checksum bitflags 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8a606a02debe2813760609f57a64a2ffd27d9fdf5b2f133eaca0b248dd92cdd2"
+"checksum bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3d155346769a6855b86399e9bc3814ab343cd3d62c7e985113d46a0ec3c281fd"
 "checksum blake2b_simd 0.5.8 (registry+https://github.com/rust-lang/crates.io-index)" = "5850aeee1552f495dd0250014cf64b82b7c8879a89d83b33bbdace2cc4f63182"
 "checksum block-buffer 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)" = "c0940dc441f31689269e10ac70eb1002a3a1d3ad1390e030043662eb7fe4688b"
 "checksum block-cipher-trait 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1c924d49bd09e7c06003acda26cd9742e796e34282ec6c1189404dee0c1f4774"
@@ -2901,13 +2967,13 @@ dependencies = [
 "checksum crossbeam-epoch 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "fedcd6772e37f3da2a9af9bf12ebe046c0dfe657992377b4df982a2b54cd37a9"
 "checksum crossbeam-queue 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7c979cd6cfe72335896575c6b5688da489e420d36a27a0b9eb0c73db574b4a4b"
 "checksum crossbeam-utils 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)" = "04973fa96e96579258a5091af6003abde64af786b860f18622b82e026cca60e6"
-"checksum ctor 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "3e061727ebef83bbccac7c27b9a5ff9fd83094d34cb20f4005440a9562a27de7"
+"checksum ctor 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "5b6b2f4752cc29efbfd03474c532ce8f916f2d44ec5bb8c21f93bc76e5365528"
 "checksum curve25519-dalek 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "8b7dcd30ba50cdf88b55b033456138b7c0ac4afdc436d82e1b79f370f24cc66d"
 "checksum darling 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fcfbcb0c5961907597a7d1148e3af036268f2b773886b8bb3eeb1e1281d3d3d6"
 "checksum darling_core 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "6afc018370c3bff3eb51f89256a6bdb18b4fdcda72d577982a14954a7a0b402c"
 "checksum darling_macro 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c6d8dac1c6f1d29a41c4712b4400f878cb4fcc4c7628f298dd75038e024998d1"
 "checksum debug_stub_derive 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "496b7f8a2f853313c3ca370641d7ff3e42c32974fdccda8f0684599ed0a3ff6b"
-"checksum deltachat-provider-database 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "814dba060d9fdc7a989fccdc4810ada9d1c7a1f09131c78e42412bc6c634b93b"
+"checksum deltachat-provider-overview 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5bef7b3626b0f859878db86ed54e4eef317adbcc3bcc3617eb38dec52e3f40e3"
 "checksum derive_builder 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "3ac53fa6a3cda160df823a9346442525dcaf1e171999a1cf23e67067e4fd64d4"
 "checksum derive_builder_core 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0288a23da9333c246bb18c143426074a6ae96747995c5819d2947b64cd942b37"
 "checksum derive_more 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)" = "6d944ac6003ed268757ef1ee686753b57efc5fcf0ebe7b64c9fc81e7e32ff839"
@@ -2969,7 +3035,7 @@ dependencies = [
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
 "checksum lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 "checksum lettre 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c66afaa5dfadbb81d4e00fd1d1ab057c7cd4c799c5a44e0009386d553587e728"
-"checksum lexical-core 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "2304bccb228c4b020f3a4835d247df0a02a7c4686098d4167762cfbbe4c5cb14"
+"checksum lexical-core 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "0d11f3928ffd249baadf9f083cdea16d7cf317b2a8be6227e1169102432a36d2"
 "checksum libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)" = "34fcd2c08d2f832f376f4173a231990fa5aef4e99fb569867318a227ef4c06ba"
 "checksum libsqlite3-sys 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5e5b95e89c330291768dc840238db7f9e204fd208511ab6319b56193a7f2ae25"
 "checksum linked-hash-map 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "ae91b68aebc4ddb91978b11a1b02ddd8602a05ec19002801c5666000e05e0f83"
@@ -3020,12 +3086,17 @@ dependencies = [
 "checksum percent-encoding 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "31010dd2e1ac33d5b46a5b413495239882813e0369f8ed8a5e266f173602f831"
 "checksum percent-encoding 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
 "checksum pgp 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "bb80b37b7debf9a98dc0caca3ed40ddf1d383691208763d0458df0b91521020f"
+"checksum phf 0.7.24 (git+https://github.com/sfackler/rust-phf?rev=0d00821)" = "<none>"
+"checksum phf_generator 0.7.24 (git+https://github.com/sfackler/rust-phf?rev=0d00821)" = "<none>"
+"checksum phf_macros 0.7.24 (git+https://github.com/sfackler/rust-phf?rev=0d00821)" = "<none>"
+"checksum phf_shared 0.7.24 (git+https://github.com/sfackler/rust-phf?rev=0d00821)" = "<none>"
 "checksum pkg-config 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)" = "72d5370d90f49f70bd033c3d75e87fc529fbfff9d6f7cccef07d6170079d91ea"
 "checksum ppv-lite86 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "e3cbf9f658cdb5000fcf6f362b8ea2ba154b9f146a61c7a20d647034c6b6561b"
 "checksum pretty_assertions 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3f81e1644e1b54f5a68959a29aa86cde704219254669da328ecfdf6a1f09d427"
 "checksum pretty_env_logger 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "717ee476b1690853d222af4634056d830b5197ffd747726a9a1eee6da9f49074"
+"checksum proc-macro-hack 0.5.9 (registry+https://github.com/rust-lang/crates.io-index)" = "e688f31d92ffd7c1ddc57a1b4e6d773c0f2a14ee437a4b0a4f5a69c80eb221c8"
 "checksum proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)" = "cf3d2011ab5c909338f7887f4fc896d35932e29146c12c8d01da6b22a80ba759"
-"checksum proc-macro2 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "afdc77cc74ec70ed262262942ebb7dac3d479e9e5cfa2da1841c0806f6cdabcc"
+"checksum proc-macro2 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "e98a83a9f9b331f54b924e68a66acb1bb35cb01fb0a23645139967abefb697e8"
 "checksum proptest 0.9.4 (registry+https://github.com/rust-lang/crates.io-index)" = "cf147e022eacf0c8a054ab864914a7602618adba841d800a9a9868a5237a529f"
 "checksum publicsuffix 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "9bf259a81de2b2eb9850ec990ec78e6a25319715584fd7652b9b26f96fcb1510"
 "checksum pulldown-cmark 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "eef52fac62d0ea7b9b4dc7da092aa64ea7ec3d90af6679422d3d7e0e14b6ee15"
@@ -3050,6 +3121,7 @@ dependencies = [
 "checksum rand_jitter 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "1166d5c91dc97b88d1decc3285bb0a99ed84b05cfd0bc2341bdf2d43fc41e39b"
 "checksum rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "7b75f676a1e053fc562eafbb47838d67c84801e38fc1ba459e8f180deabd5071"
 "checksum rand_pcg 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "abf9b09b01790cfe0364f52bf32995ea3c39f4d2dd011eac241d2914146d0b44"
+"checksum rand_pcg 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3e196346cbbc5c70c77e7b4926147ee8e383a38ee4d15d58a08098b169e492b6"
 "checksum rand_xorshift 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cbf7e9e623549b0e21f6e97cf8ecf247c1a8fd2e8a992ae265314300b2455d5c"
 "checksum rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "678054eb77286b51581ba43620cc911abf02758c91f93f479767aed0f90458b2"
 "checksum redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)" = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
@@ -3084,6 +3156,7 @@ dependencies = [
 "checksum sha-1 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "23962131a91661d643c98940b20fcaffe62d776a823247be80a48fcb8b6fce68"
 "checksum sha2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7b4d8bfd0e469f417657573d8451fb33d16cfe0989359b93baf3a1ffc639543d"
 "checksum sha3 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dd26bc0e7a2e3a7c959bc494caf58b72ee0c71d67704e9520f736ca7e4853ecf"
+"checksum siphasher 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9913c75df657d84a03fa689c016b0bb2863ff0b497b26a8d6e9703f8d5df03a8"
 "checksum skeptic 0.13.4 (registry+https://github.com/rust-lang/crates.io-index)" = "d6fb8ed853fdc19ce09752d63f3a2e5b5158aeb261520cd75eb618bd60305165"
 "checksum slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
 "checksum slice-deque 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "ffddf594f5f597f63533d897427a570dbaa9feabaaa06595b74b71b7014507d7"
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat"
-version = "1.0.0-alpha.5"
+version = "1.0.0-alpha.4"
 authors = ["dignifiedquire <dignifiedquire@gmail.com>"]
 edition = "2018"
 license = "MPL"
@@ -14,6 +14,7 @@ pgp = { version = "0.2", default-features = false }
 hex = "0.3.2"
 sha2 = "0.8.0"
 rand = "0.6.5"
+phf = { git = "https://github.com/sfackler/rust-phf", rev = "0d00821", features = ["macros"] }
 smallvec = "0.6.9"
 reqwest = "0.9.15"
 num-derive = "0.2.5"
--- a/deltachat-ffi/Cargo.toml
+++ b/deltachat-ffi/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat_ffi"
-version = "1.0.0-alpha.5"
+version = "1.0.0-alpha.4"
 description = "Deltachat FFI"
 authors = ["dignifiedquire <dignifiedquire@gmail.com>"]
 edition = "2018"
@@ -16,7 +16,7 @@ crate-type = ["cdylib", "staticlib"]

 [dependencies]
 deltachat = { path = "../", default-features = false }
-deltachat-provider-database = "0.2.1"
+deltachat-provider-overview = "0.1.0"
 libc = "0.2"
 human-panic = "1.0.1"
 num-traits = "0.2.6"
--- a/deltachat-ffi/deltachat.h
+++ b/deltachat-ffi/deltachat.h
@@ -405,14 +405,9 @@ char*           dc_get_config                (dc_context_t* context, const char*

 /**
 * Get information about the context.
- *
 * The information is returned by a multi-line string
 * and contains information about the current configuration.
 *
- * If the context is not open or configured only a subset of the information
- * will be available.  There is no guarantee about which information will be
- * included when however.
- *
 * @memberof dc_context_t
 * @param context The context as created by dc_context_new().
 * @return String which must be free()'d after usage.  Never returns NULL.
@@ -3485,7 +3480,7 @@ int             dc_contact_is_verified       (dc_contact_t* contact);
 *     accessor functions.  If no provider info is found, NULL will be
 *     returned.
 */
-dc_provider_t*  dc_provider_new_from_domain           (const char* domain);
+dc_provider_t*  dc_provider_new_from_domain           (char* domain);


 /**
@@ -3499,7 +3494,7 @@ dc_provider_t*  dc_provider_new_from_domain           (const char* domain);
 *     accessor functions.  If no provider info is found, NULL will be
 *     returned.
 */
-dc_provider_t*  dc_provider_new_from_email            (const char* email);
+dc_provider_t*  dc_provider_new_from_email            (char* email);


 /**
--- a/deltachat-ffi/src/lib.rs
+++ b/deltachat-ffi/src/lib.rs
@@ -225,8 +225,8 @@ pub unsafe extern "C" fn dc_get_userdata(context: *mut dc_context_t) -> *mut lib
 #[no_mangle]
 pub unsafe extern "C" fn dc_open(
    context: *mut dc_context_t,
-    dbfile: *const libc::c_char,
-    blobdir: *const libc::c_char,
+    dbfile: *mut libc::c_char,
+    blobdir: *mut libc::c_char,
 ) -> libc::c_int {
    if context.is_null() || dbfile.is_null() {
        eprintln!("ignoring careless call to dc_open()");
@@ -275,11 +275,11 @@ pub unsafe extern "C" fn dc_is_open(context: *mut dc_context_t) -> libc::c_int {
        eprintln!("ignoring careless call to dc_is_open()");
        return 0;
    }
-    let ffi_context = &*context;
+    let ffi_context = &mut *context;
    let inner_guard = ffi_context.inner.read().unwrap();
    match *inner_guard {
-        Some(_) => 1,
-        None => 0,
+        Some(_) => 0,
+        None => 1,
    }
 }

@@ -298,8 +298,8 @@ pub unsafe extern "C" fn dc_get_blobdir(context: *mut dc_context_t) -> *mut libc
 #[no_mangle]
 pub unsafe extern "C" fn dc_set_config(
    context: *mut dc_context_t,
-    key: *const libc::c_char,
-    value: *const libc::c_char,
+    key: *mut libc::c_char,
+    value: *mut libc::c_char,
 ) -> libc::c_int {
    if context.is_null() || key.is_null() {
        eprintln!("ignoring careless call to dc_set_config()");
@@ -322,7 +322,7 @@ pub unsafe extern "C" fn dc_set_config(
 #[no_mangle]
 pub unsafe extern "C" fn dc_get_config(
    context: *mut dc_context_t,
-    key: *const libc::c_char,
+    key: *mut libc::c_char,
 ) -> *mut libc::c_char {
    if context.is_null() || key.is_null() {
        eprintln!("ignoring careless call to dc_get_config()");
@@ -347,12 +347,9 @@ pub unsafe extern "C" fn dc_get_info(context: *mut dc_context_t) -> *mut libc::c
        return dc_strdup(ptr::null());
    }
    let ffi_context = &*context;
-    let guard = ffi_context.inner.read().unwrap();
-    let info = match guard.as_ref() {
-        Some(ref ctx) => ctx.get_info(),
-        None => context::get_info(),
-    };
-    render_info(info).unwrap_or_default().strdup()
+    ffi_context
+        .with_inner(|ctx| render_info(ctx.get_info()).unwrap_or_default().strdup())
+        .unwrap_or_else(|_| "".strdup())
 }

 fn render_info(
@@ -369,8 +366,8 @@ fn render_info(
 #[no_mangle]
 pub unsafe extern "C" fn dc_get_oauth2_url(
    context: *mut dc_context_t,
-    addr: *const libc::c_char,
-    redirect: *const libc::c_char,
+    addr: *mut libc::c_char,
+    redirect: *mut libc::c_char,
 ) -> *mut libc::c_char {
    if context.is_null() {
        eprintln!("ignoring careless call to dc_get_oauth2_url()");
@@ -612,7 +609,7 @@ pub unsafe extern "C" fn dc_maybe_network(context: *mut dc_context_t) {
 pub unsafe extern "C" fn dc_get_chatlist(
    context: *mut dc_context_t,
    flags: libc::c_int,
-    query_str: *const libc::c_char,
+    query_str: *mut libc::c_char,
    query_id: u32,
 ) -> *mut dc_chatlist_t {
    if context.is_null() {
@@ -733,7 +730,7 @@ pub unsafe extern "C" fn dc_send_msg(
 pub unsafe extern "C" fn dc_send_text_msg(
    context: *mut dc_context_t,
    chat_id: u32,
-    text_to_send: *const libc::c_char,
+    text_to_send: *mut libc::c_char,
 ) -> u32 {
    if context.is_null() || text_to_send.is_null() {
        eprintln!("ignoring careless call to dc_send_text_msg()");
@@ -1017,7 +1014,7 @@ pub unsafe extern "C" fn dc_get_chat_contacts(
 pub unsafe extern "C" fn dc_search_msgs(
    context: *mut dc_context_t,
    chat_id: u32,
-    query: *const libc::c_char,
+    query: *mut libc::c_char,
 ) -> *mut dc_array::dc_array_t {
    if context.is_null() || query.is_null() {
        eprintln!("ignoring careless call to dc_search_msgs()");
@@ -1054,7 +1051,7 @@ pub unsafe extern "C" fn dc_get_chat(context: *mut dc_context_t, chat_id: u32) -
 pub unsafe extern "C" fn dc_create_group_chat(
    context: *mut dc_context_t,
    verified: libc::c_int,
-    name: *const libc::c_char,
+    name: *mut libc::c_char,
 ) -> u32 {
    if context.is_null() || name.is_null() {
        eprintln!("ignoring careless call to dc_create_group_chat()");
@@ -1131,7 +1128,7 @@ pub unsafe extern "C" fn dc_remove_contact_from_chat(
 pub unsafe extern "C" fn dc_set_chat_name(
    context: *mut dc_context_t,
    chat_id: u32,
-    name: *const libc::c_char,
+    name: *mut libc::c_char,
 ) -> libc::c_int {
    if context.is_null() || chat_id <= constants::DC_CHAT_ID_LAST_SPECIAL as u32 || name.is_null() {
        eprintln!("ignoring careless call to dc_set_chat_name()");
@@ -1151,7 +1148,7 @@ pub unsafe extern "C" fn dc_set_chat_name(
 pub unsafe extern "C" fn dc_set_chat_profile_image(
    context: *mut dc_context_t,
    chat_id: u32,
-    image: *const libc::c_char,
+    image: *mut libc::c_char,
 ) -> libc::c_int {
    if context.is_null() || chat_id <= constants::DC_CHAT_ID_LAST_SPECIAL as u32 {
        eprintln!("ignoring careless call to dc_set_chat_profile_image()");
@@ -1322,7 +1319,7 @@ pub unsafe extern "C" fn dc_get_msg(context: *mut dc_context_t, msg_id: u32) ->
 }

 #[no_mangle]
-pub unsafe extern "C" fn dc_may_be_valid_addr(addr: *const libc::c_char) -> libc::c_int {
+pub unsafe extern "C" fn dc_may_be_valid_addr(addr: *mut libc::c_char) -> libc::c_int {
    if addr.is_null() {
        eprintln!("ignoring careless call to dc_may_be_valid_addr()");
        return 0;
@@ -1334,7 +1331,7 @@ pub unsafe extern "C" fn dc_may_be_valid_addr(addr: *const libc::c_char) -> libc
 #[no_mangle]
 pub unsafe extern "C" fn dc_lookup_contact_id_by_addr(
    context: *mut dc_context_t,
-    addr: *const libc::c_char,
+    addr: *mut libc::c_char,
 ) -> u32 {
    if context.is_null() || addr.is_null() {
        eprintln!("ignoring careless call to dc_lookup_contact_id_by_addr()");
@@ -1349,8 +1346,8 @@ pub unsafe extern "C" fn dc_lookup_contact_id_by_addr(
 #[no_mangle]
 pub unsafe extern "C" fn dc_create_contact(
    context: *mut dc_context_t,
-    name: *const libc::c_char,
-    addr: *const libc::c_char,
+    name: *mut libc::c_char,
+    addr: *mut libc::c_char,
 ) -> u32 {
    if context.is_null() || addr.is_null() {
        eprintln!("ignoring careless call to dc_create_contact()");
@@ -1369,7 +1366,7 @@ pub unsafe extern "C" fn dc_create_contact(
 #[no_mangle]
 pub unsafe extern "C" fn dc_add_address_book(
    context: *mut dc_context_t,
-    addr_book: *const libc::c_char,
+    addr_book: *mut libc::c_char,
 ) -> libc::c_int {
    if context.is_null() || addr_book.is_null() {
        eprintln!("ignoring careless call to dc_add_address_book()");
@@ -1390,7 +1387,7 @@ pub unsafe extern "C" fn dc_add_address_book(
 pub unsafe extern "C" fn dc_get_contacts(
    context: *mut dc_context_t,
    flags: u32,
-    query: *const libc::c_char,
+    query: *mut libc::c_char,
 ) -> *mut dc_array::dc_array_t {
    if context.is_null() {
        eprintln!("ignoring careless call to dc_get_contacts()");
@@ -1521,31 +1518,23 @@ pub unsafe extern "C" fn dc_get_contact(
 pub unsafe extern "C" fn dc_imex(
    context: *mut dc_context_t,
    what: libc::c_int,
-    param1: *const libc::c_char,
-    _param2: *const libc::c_char,
+    param1: *mut libc::c_char,
+    param2: *mut libc::c_char,
 ) {
    if context.is_null() {
        eprintln!("ignoring careless call to dc_imex()");
        return;
    }
-    let what = match imex::ImexMode::from_i32(what as i32) {
-        Some(what) => what,
-        None => {
-            eprintln!("ignoring invalid argument {} to dc_imex", what);
-            return;
-        }
-    };
-
    let ffi_context = &*context;
    ffi_context
-        .with_inner(|ctx| imex::imex(ctx, what, as_opt_str(param1)))
+        .with_inner(|ctx| dc_imex::dc_imex(ctx, what, as_opt_str(param1), param2))
        .ok();
 }

 #[no_mangle]
 pub unsafe extern "C" fn dc_imex_has_backup(
    context: *mut dc_context_t,
-    dir: *const libc::c_char,
+    dir: *mut libc::c_char,
 ) -> *mut libc::c_char {
    if context.is_null() || dir.is_null() {
        eprintln!("ignoring careless call to dc_imex_has_backup()");
@@ -1553,13 +1542,7 @@ pub unsafe extern "C" fn dc_imex_has_backup(
    }
    let ffi_context = &*context;
    ffi_context
-        .with_inner(|ctx| match imex::has_backup(ctx, as_str(dir)) {
-            Ok(res) => res.strdup(),
-            Err(err) => {
-                error!(ctx, "dc_imex_has_backup: {}", err);
-                ptr::null_mut()
-            }
-        })
+        .with_inner(|ctx| dc_imex::dc_imex_has_backup(ctx, as_str(dir)))
        .unwrap_or_else(|_| ptr::null_mut())
 }

@@ -1571,13 +1554,7 @@ pub unsafe extern "C" fn dc_initiate_key_transfer(context: *mut dc_context_t) ->
    }
    let ffi_context = &*context;
    ffi_context
-        .with_inner(|ctx| match imex::initiate_key_transfer(ctx) {
-            Ok(res) => res.strdup(),
-            Err(err) => {
-                error!(ctx, "dc_initiate_key_transfer(): {}", err);
-                ptr::null_mut()
-            }
-        })
+        .with_inner(|ctx| dc_imex::dc_initiate_key_transfer(ctx))
        .unwrap_or_else(|_| ptr::null_mut())
 }

@@ -1585,7 +1562,7 @@ pub unsafe extern "C" fn dc_initiate_key_transfer(context: *mut dc_context_t) ->
 pub unsafe extern "C" fn dc_continue_key_transfer(
    context: *mut dc_context_t,
    msg_id: u32,
-    setup_code: *const libc::c_char,
+    setup_code: *mut libc::c_char,
 ) -> libc::c_int {
    if context.is_null()
        || msg_id <= constants::DC_MSG_ID_LAST_SPECIAL as u32
@@ -1596,15 +1573,7 @@ pub unsafe extern "C" fn dc_continue_key_transfer(
    }
    let ffi_context = &*context;
    ffi_context
-        .with_inner(
-            |ctx| match imex::continue_key_transfer(ctx, msg_id, as_str(setup_code)) {
-                Ok(()) => 1,
-                Err(err) => {
-                    error!(ctx, "dc_continue_key_transfer: {}", err);
-                    0
-                }
-            },
-        )
+        .with_inner(|ctx| dc_imex::dc_continue_key_transfer(ctx, msg_id, setup_code) as libc::c_int)
        .unwrap_or(0)
 }

@@ -1623,7 +1592,7 @@ pub unsafe extern "C" fn dc_stop_ongoing_process(context: *mut dc_context_t) {
 #[no_mangle]
 pub unsafe extern "C" fn dc_check_qr(
    context: *mut dc_context_t,
-    qr: *const libc::c_char,
+    qr: *mut libc::c_char,
 ) -> *mut dc_lot_t {
    if context.is_null() || qr.is_null() {
        eprintln!("ignoring careless call to dc_check_qr()");
@@ -1660,7 +1629,7 @@ pub unsafe extern "C" fn dc_get_securejoin_qr(
 #[no_mangle]
 pub unsafe extern "C" fn dc_join_securejoin(
    context: *mut dc_context_t,
-    qr: *const libc::c_char,
+    qr: *mut libc::c_char,
 ) -> u32 {
    if context.is_null() || qr.is_null() {
        eprintln!("ignoring careless call to dc_join_securejoin()");
@@ -2376,11 +2345,7 @@ pub unsafe extern "C" fn dc_msg_get_filemime(msg: *mut dc_msg_t) -> *mut libc::c
        return dc_strdup(ptr::null());
    }
    let ffi_msg = &*msg;
-    if let Some(x) = ffi_msg.message.get_filemime() {
-        x.strdup()
-    } else {
-        return dc_strdup(ptr::null());
-    }
+    ffi_msg.message.get_filemime().strdup()
 }

 #[no_mangle]
@@ -2577,7 +2542,7 @@ pub unsafe extern "C" fn dc_msg_get_setupcodebegin(msg: *mut dc_msg_t) -> *mut l
 }

 #[no_mangle]
-pub unsafe extern "C" fn dc_msg_set_text(msg: *mut dc_msg_t, text: *const libc::c_char) {
+pub unsafe extern "C" fn dc_msg_set_text(msg: *mut dc_msg_t, text: *mut libc::c_char) {
    if msg.is_null() {
        eprintln!("ignoring careless call to dc_msg_set_text()");
        return;
@@ -2590,8 +2555,8 @@ pub unsafe extern "C" fn dc_msg_set_text(msg: *mut dc_msg_t, text: *const libc::
 #[no_mangle]
 pub unsafe extern "C" fn dc_msg_set_file(
    msg: *mut dc_msg_t,
-    file: *const libc::c_char,
-    filemime: *const libc::c_char,
+    file: *mut libc::c_char,
+    filemime: *mut libc::c_char,
 ) {
    if msg.is_null() || file.is_null() {
        eprintln!("ignoring careless call to dc_msg_set_file()");
--- a/deltachat-ffi/src/providers.rs
+++ b/deltachat-ffi/src/providers.rs
@@ -1,18 +1,18 @@
-extern crate deltachat_provider_database;
+extern crate deltachat_provider_overview;

 use std::ptr;

 use deltachat::dc_tools::{as_str, StrExt};
-use deltachat_provider_database::StatusState;
+use deltachat_provider_overview::StatusState;

 #[no_mangle]
-pub type dc_provider_t = deltachat_provider_database::Provider;
+pub type dc_provider_t = deltachat_provider_overview::Provider;

 #[no_mangle]
 pub unsafe extern "C" fn dc_provider_new_from_domain(
    domain: *const libc::c_char,
 ) -> *const dc_provider_t {
-    match deltachat_provider_database::get_provider_info(as_str(domain)) {
+    match deltachat_provider_overview::get_provider_info(as_str(domain)) {
        Some(provider) => provider,
        None => ptr::null(),
    }
@@ -22,8 +22,8 @@ pub unsafe extern "C" fn dc_provider_new_from_domain(
 pub unsafe extern "C" fn dc_provider_new_from_email(
    email: *const libc::c_char,
 ) -> *const dc_provider_t {
-    let domain = deltachat_provider_database::get_domain_from_email(as_str(email));
-    match deltachat_provider_database::get_provider_info(domain) {
+    let domain = deltachat_provider_overview::get_domain_from_email(as_str(email));
+    match deltachat_provider_overview::get_provider_info(domain) {
        Some(provider) => provider,
        None => ptr::null(),
    }
@@ -44,7 +44,7 @@ pub unsafe extern "C" fn dc_provider_get_overview_page(
    null_guard!(provider);
    format!(
        "{}/{}",
-        deltachat_provider_database::PROVIDER_OVERVIEW_URL,
+        deltachat_provider_overview::PROVIDER_OVERVIEW_URL,
        (*provider).overview_page
    )
    .strdup()
--- a/examples/repl/cmdline.rs
+++ b/examples/repl/cmdline.rs
@@ -1,4 +1,5 @@
 use std::path::Path;
+use std::ptr;
 use std::str::FromStr;

 use deltachat::chat::{self, Chat};
@@ -8,10 +9,10 @@ use deltachat::configure::*;
 use deltachat::constants::*;
 use deltachat::contact::*;
 use deltachat::context::*;
+use deltachat::dc_imex::*;
 use deltachat::dc_receive_imf::*;
 use deltachat::dc_tools::*;
 use deltachat::error::Error;
-use deltachat::imex::*;
 use deltachat::job::*;
 use deltachat::location;
 use deltachat::lot::LotState;
@@ -96,13 +97,22 @@ pub unsafe 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)?;

-    unsafe { dc_receive_imf(context, &data, "import", 0, 0) };
+    unsafe {
+        dc_receive_imf(
+            context,
+            data.as_ptr() as *const _,
+            data.len(),
+            "import",
+            0,
+            0,
+        )
+    };
    Ok(())
 }

 /// Import a file to the database.
 /// For testing, import a folder with eml-files, a single eml-file, e-mail plus public key and so on.
-/// For normal importing, use imex().
+/// For normal importing, use dc_imex().
 ///
 /// @private @memberof Context
 /// @param context The context as created by dc_context_new().
@@ -317,8 +327,12 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
        arg1.strdup() as *const _
    };
    let arg2 = args.next().unwrap_or_default();
+    let arg2_c = if arg2.is_empty() {
+        std::ptr::null()
+    } else {
+        arg2.strdup() as *const _
+    };

-    let blobdir = context.get_blobdir();
    match arg0 {
        "help" | "?" => match arg1 {
            // TODO: reuse commands definition in main.rs.
@@ -405,13 +419,18 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
                 ============================================="
            ),
        },
-        "initiate-key-transfer" => match initiate_key_transfer(context) {
-            Ok(setup_code) => println!(
-                "Setup code for the transferred setup message: {}",
-                setup_code,
-            ),
-            Err(err) => bail!("Failed to generate setup code: {}", err),
-        },
+        "initiate-key-transfer" => {
+            let setup_code = dc_initiate_key_transfer(context);
+            if !setup_code.is_null() {
+                println!(
+                    "Setup code for the transferred setup message: {}",
+                    as_str(setup_code),
+                );
+                free(setup_code as *mut libc::c_void);
+            } else {
+                bail!("Failed to generate setup code");
+            };
+        }
        "get-setupcodebegin" => {
            ensure!(!arg1.is_empty(), "Argument <msg-id> missing.");
            let msg_id: u32 = arg1.parse()?;
@@ -432,28 +451,33 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
                !arg1.is_empty() && !arg2.is_empty(),
                "Arguments <msg-id> <setup-code> expected"
            );
-            continue_key_transfer(context, arg1.parse()?, &arg2)?;
+            if !dc_continue_key_transfer(context, arg1.parse()?, arg2_c) {
+                bail!("Continue key transfer failed");
+            }
        }
        "has-backup" => {
-            has_backup(context, blobdir)?;
+            let ret = dc_imex_has_backup(context, context.get_blobdir());
+            if ret.is_null() {
+                println!("No backup found.");
+            }
        }
        "export-backup" => {
-            imex(context, ImexMode::ExportBackup, Some(blobdir));
+            dc_imex(context, 11, Some(context.get_blobdir()), ptr::null());
        }
        "import-backup" => {
            ensure!(!arg1.is_empty(), "Argument <backup-file> missing.");
-            imex(context, ImexMode::ImportBackup, Some(arg1));
+            dc_imex(context, 12, Some(arg1), ptr::null());
        }
        "export-keys" => {
-            imex(context, ImexMode::ExportSelfKeys, Some(blobdir));
+            dc_imex(context, 1, Some(context.get_blobdir()), ptr::null());
        }
        "import-keys" => {
-            imex(context, ImexMode::ImportSelfKeys, Some(blobdir));
+            dc_imex(context, 2, Some(context.get_blobdir()), ptr::null());
        }
        "export-setup" => {
-            let setup_code = create_setup_code(context);
-            let file_name = blobdir.join("autocrypt-setup-message.html");
-            let file_content = render_setup_file(context, &setup_code)?;
+            let setup_code = dc_create_setup_code(context);
+            let file_name = context.get_blobdir().join("autocrypt-setup-message.html");
+            let file_content = dc_render_setup_file(context, &setup_code)?;
            std::fs::write(&file_name, file_content)?;
            println!(
                "Setup message written to: {}\nSetup code: {}",
@@ -977,6 +1001,7 @@ pub unsafe fn dc_cmdline(context: &Context, line: &str) -> Result<(), failure::E
    }

    free(arg1_c as *mut _);
+    free(arg2_c as *mut _);

    Ok(())
 }
--- a/mmime/src/constants.rs
+++ b/mmime/src/constants.rs
@@ -1,71 +0,0 @@
-pub const MAIL_ERROR_SSL: libc::c_uint = 58;
-pub const MAIL_ERROR_FOLDER: libc::c_uint = 57;
-pub const MAIL_ERROR_UNABLE: libc::c_uint = 56;
-pub const MAIL_ERROR_SYSTEM: libc::c_uint = 55;
-pub const MAIL_ERROR_COMMAND: libc::c_uint = 54;
-pub const MAIL_ERROR_SEND: libc::c_uint = 53;
-pub const MAIL_ERROR_CHAR_ENCODING_FAILED: libc::c_uint = 52;
-pub const MAIL_ERROR_SUBJECT_NOT_FOUND: libc::c_uint = 51;
-/* 50 */
-pub const MAIL_ERROR_PROGRAM_ERROR: libc::c_uint = 50;
-pub const MAIL_ERROR_NO_PERMISSION: libc::c_uint = 49;
-pub const MAIL_ERROR_COMMAND_NOT_SUPPORTED: libc::c_uint = 48;
-pub const MAIL_ERROR_NO_APOP: libc::c_uint = 47;
-pub const MAIL_ERROR_READONLY: libc::c_uint = 46;
-pub const MAIL_ERROR_FATAL: libc::c_uint = 45;
-pub const MAIL_ERROR_CLOSE: libc::c_uint = 44;
-pub const MAIL_ERROR_CAPABILITY: libc::c_uint = 43;
-pub const MAIL_ERROR_PROTOCOL: libc::c_uint = 42;
-/* misc errors */
-pub const MAIL_ERROR_MISC: libc::c_uint = 41;
-/* 40 */
-pub const MAIL_ERROR_EXPUNGE: libc::c_uint = 40;
-pub const MAIL_ERROR_NO_TLS: libc::c_uint = 39;
-pub const MAIL_ERROR_CACHE_MISS: libc::c_uint = 38;
-pub const MAIL_ERROR_STARTTLS: libc::c_uint = 37;
-pub const MAIL_ERROR_MOVE: libc::c_uint = 36;
-pub const MAIL_ERROR_FOLDER_NOT_FOUND: libc::c_uint = 35;
-pub const MAIL_ERROR_REMOVE: libc::c_uint = 34;
-pub const MAIL_ERROR_PART_NOT_FOUND: libc::c_uint = 33;
-pub const MAIL_ERROR_INVAL: libc::c_uint = 32;
-pub const MAIL_ERROR_PARSE: libc::c_uint = 31;
-/* 30 */
-pub const MAIL_ERROR_MSG_NOT_FOUND: libc::c_uint = 30;
-pub const MAIL_ERROR_DISKSPACE: libc::c_uint = 29;
-pub const MAIL_ERROR_SEARCH: libc::c_uint = 28;
-pub const MAIL_ERROR_STORE: libc::c_uint = 27;
-pub const MAIL_ERROR_FETCH: libc::c_uint = 26;
-pub const MAIL_ERROR_COPY: libc::c_uint = 25;
-pub const MAIL_ERROR_APPEND: libc::c_uint = 24;
-pub const MAIL_ERROR_LSUB: libc::c_uint = 23;
-pub const MAIL_ERROR_LIST: libc::c_uint = 22;
-pub const MAIL_ERROR_UNSUBSCRIBE: libc::c_uint = 21;
-/* 20 */
-pub const MAIL_ERROR_SUBSCRIBE: libc::c_uint = 20;
-pub const MAIL_ERROR_STATUS: libc::c_uint = 19;
-pub const MAIL_ERROR_MEMORY: libc::c_uint = 18;
-pub const MAIL_ERROR_SELECT: libc::c_uint = 17;
-pub const MAIL_ERROR_EXAMINE: libc::c_uint = 16;
-pub const MAIL_ERROR_CHECK: libc::c_uint = 15;
-pub const MAIL_ERROR_RENAME: libc::c_uint = 14;
-pub const MAIL_ERROR_NOOP: libc::c_uint = 13;
-pub const MAIL_ERROR_LOGOUT: libc::c_uint = 12;
-pub const MAIL_ERROR_DELETE: libc::c_uint = 11;
-/* 10 */
-pub const MAIL_ERROR_CREATE: libc::c_uint = 10;
-pub const MAIL_ERROR_LOGIN: libc::c_uint = 9;
-pub const MAIL_ERROR_STREAM: libc::c_uint = 8;
-pub const MAIL_ERROR_FILE: libc::c_uint = 7;
-pub const MAIL_ERROR_BAD_STATE: libc::c_uint = 6;
-pub const MAIL_ERROR_CONNECT: libc::c_uint = 5;
-pub const MAIL_ERROR_UNKNOWN: libc::c_uint = 4;
-pub const MAIL_ERROR_NOT_IMPLEMENTED: libc::c_uint = 3;
-pub const MAIL_NO_ERROR_NON_AUTHENTICATED: libc::c_uint = 2;
-pub const MAIL_NO_ERROR_AUTHENTICATED: libc::c_uint = 1;
-pub const MAIL_NO_ERROR: libc::c_uint = 0;
-
-pub const MAILIMF_ERROR_FILE: libc::c_uint = 4;
-pub const MAILIMF_ERROR_INVAL: libc::c_uint = 3;
-pub const MAILIMF_ERROR_MEMORY: libc::c_uint = 2;
-pub const MAILIMF_ERROR_PARSE: libc::c_uint = 1;
-pub const MAILIMF_NO_ERROR: libc::c_uint = 0;
--- a/mmime/src/display.rs
+++ b/mmime/src/display.rs
@@ -1,386 +0,0 @@
-use crate::clist::*;
-
-use crate::mailimf::types::*;
-use crate::mailmime::types::*;
-
-use std::ffi::CStr;
-
-pub unsafe fn display_mime(mut mime: *mut Mailmime) {
-    let mut cur: *mut clistiter = 0 as *mut clistiter;
-    println!("{}", (*mime).mm_type);
-
-    match (*mime).mm_type as u32 {
-        MAILMIME_SINGLE => {
-            println!("single part");
-        }
-        MAILMIME_MULTIPLE => {
-            println!("multipart");
-        }
-        MAILMIME_MESSAGE => println!("message"),
-        _ => {}
-    }
-    if !(*mime).mm_mime_fields.is_null() {
-        if !(*(*(*mime).mm_mime_fields).fld_list).first.is_null() {
-            print!("MIME headers begin");
-            display_mime_fields((*mime).mm_mime_fields);
-            println!("MIME headers end");
-        }
-    }
-    display_mime_content((*mime).mm_content_type);
-    match (*mime).mm_type as u32 {
-        MAILMIME_SINGLE => {
-            display_mime_data((*mime).mm_data.mm_single);
-        }
-        MAILMIME_MULTIPLE => {
-            cur = (*(*mime).mm_data.mm_multipart.mm_mp_list).first;
-            while !cur.is_null() {
-                display_mime(
-                    (if !cur.is_null() {
-                        (*cur).data
-                    } else {
-                        0 as *mut libc::c_void
-                    }) as *mut Mailmime,
-                );
-                cur = if !cur.is_null() {
-                    (*cur).next
-                } else {
-                    0 as *mut clistcell
-                }
-            }
-        }
-        MAILMIME_MESSAGE => {
-            if !(*mime).mm_data.mm_message.mm_fields.is_null() {
-                if !(*(*(*mime).mm_data.mm_message.mm_fields).fld_list)
-                    .first
-                    .is_null()
-                {
-                    println!("headers begin");
-                    display_fields((*mime).mm_data.mm_message.mm_fields);
-                    println!("headers end");
-                }
-                if !(*mime).mm_data.mm_message.mm_msg_mime.is_null() {
-                    display_mime((*mime).mm_data.mm_message.mm_msg_mime);
-                }
-            }
-        }
-        _ => {}
-    };
-}
-
-unsafe fn display_mime_content(mut content_type: *mut mailmime_content) {
-    print!("type: ");
-    display_mime_type((*content_type).ct_type);
-    println!(
-        "/{}",
-        CStr::from_ptr((*content_type).ct_subtype).to_str().unwrap()
-    );
-}
-unsafe fn display_mime_type(mut type_0: *mut mailmime_type) {
-    match (*type_0).tp_type {
-        1 => {
-            display_mime_discrete_type((*type_0).tp_data.tp_discrete_type);
-        }
-        2 => {
-            display_mime_composite_type((*type_0).tp_data.tp_composite_type);
-        }
-        _ => {}
-    };
-}
-unsafe fn display_mime_composite_type(mut ct: *mut mailmime_composite_type) {
-    match (*ct).ct_type {
-        1 => {
-            print!("message");
-        }
-        2 => {
-            print!("multipart");
-        }
-        3 => {
-            print!("{}", CStr::from_ptr((*ct).ct_token).to_str().unwrap());
-        }
-        _ => {}
-    };
-}
-unsafe fn display_mime_discrete_type(mut discrete_type: *mut mailmime_discrete_type) {
-    match (*discrete_type).dt_type {
-        1 => {
-            print!("text");
-        }
-        2 => {
-            print!("image");
-        }
-        3 => {
-            print!("audio");
-        }
-        4 => {
-            print!("video");
-        }
-        5 => {
-            print!("application");
-        }
-        6 => {
-            print!("{}", (*discrete_type).dt_extension as u8 as char);
-        }
-        _ => {}
-    };
-}
-unsafe fn display_mime_data(mut data: *mut mailmime_data) {
-    match (*data).dt_type {
-        0 => {
-            println!(
-                "data : {} bytes",
-                (*data).dt_data.dt_text.dt_length as libc::c_uint,
-            );
-        }
-        1 => {
-            println!(
-                "data (file) : {}",
-                CStr::from_ptr((*data).dt_data.dt_filename)
-                    .to_str()
-                    .unwrap()
-            );
-        }
-        _ => {}
-    };
-}
-unsafe fn display_mime_dsp_parm(mut param: *mut mailmime_disposition_parm) {
-    match (*param).pa_type {
-        0 => {
-            println!(
-                "filename: {}",
-                CStr::from_ptr((*param).pa_data.pa_filename)
-                    .to_str()
-                    .unwrap()
-            );
-        }
-        _ => {}
-    };
-}
-unsafe fn display_mime_disposition(mut disposition: *mut mailmime_disposition) {
-    let mut cur: *mut clistiter = 0 as *mut clistiter;
-    cur = (*(*disposition).dsp_parms).first;
-    while !cur.is_null() {
-        let mut param: *mut mailmime_disposition_parm = 0 as *mut mailmime_disposition_parm;
-        param = (if !cur.is_null() {
-            (*cur).data
-        } else {
-            0 as *mut libc::c_void
-        }) as *mut mailmime_disposition_parm;
-        display_mime_dsp_parm(param);
-        cur = if !cur.is_null() {
-            (*cur).next
-        } else {
-            0 as *mut clistcell
-        }
-    }
-}
-unsafe fn display_mime_field(mut field: *mut mailmime_field) {
-    match (*field).fld_type {
-        1 => {
-            print!("content-type: ");
-            display_mime_content((*field).fld_data.fld_content);
-            println!("");
-        }
-        6 => {
-            display_mime_disposition((*field).fld_data.fld_disposition);
-        }
-        _ => {}
-    };
-}
-unsafe fn display_mime_fields(mut fields: *mut mailmime_fields) {
-    let mut cur: *mut clistiter = 0 as *mut clistiter;
-    cur = (*(*fields).fld_list).first;
-    while !cur.is_null() {
-        let mut field: *mut mailmime_field = 0 as *mut mailmime_field;
-        field = (if !cur.is_null() {
-            (*cur).data
-        } else {
-            0 as *mut libc::c_void
-        }) as *mut mailmime_field;
-        display_mime_field(field);
-        cur = if !cur.is_null() {
-            (*cur).next
-        } else {
-            0 as *mut clistcell
-        }
-    }
-}
-unsafe fn display_date_time(mut d: *mut mailimf_date_time) {
-    print!(
-        "{:02}/{:02}/{:02} {:02}:{:02}:{:02} +{:04}",
-        (*d).dt_day,
-        (*d).dt_month,
-        (*d).dt_year,
-        (*d).dt_hour,
-        (*d).dt_min,
-        (*d).dt_sec,
-        (*d).dt_zone,
-    );
-}
-unsafe fn display_orig_date(mut orig_date: *mut mailimf_orig_date) {
-    display_date_time((*orig_date).dt_date_time);
-}
-unsafe fn display_mailbox(mut mb: *mut mailimf_mailbox) {
-    if !(*mb).mb_display_name.is_null() {
-        print!(
-            "{}",
-            CStr::from_ptr((*mb).mb_display_name).to_str().unwrap()
-        );
-    }
-    print!("<{}>", CStr::from_ptr((*mb).mb_addr_spec).to_str().unwrap());
-}
-unsafe fn display_mailbox_list(mut mb_list: *mut mailimf_mailbox_list) {
-    let mut cur: *mut clistiter = 0 as *mut clistiter;
-    cur = (*(*mb_list).mb_list).first;
-    while !cur.is_null() {
-        let mut mb: *mut mailimf_mailbox = 0 as *mut mailimf_mailbox;
-        mb = (if !cur.is_null() {
-            (*cur).data
-        } else {
-            0 as *mut libc::c_void
-        }) as *mut mailimf_mailbox;
-        display_mailbox(mb);
-        if !if !cur.is_null() {
-            (*cur).next
-        } else {
-            0 as *mut clistcell
-        }
-        .is_null()
-        {
-            print!(", ");
-        }
-        cur = if !cur.is_null() {
-            (*cur).next
-        } else {
-            0 as *mut clistcell
-        }
-    }
-}
-unsafe fn display_group(mut group: *mut mailimf_group) {
-    let mut cur: *mut clistiter = 0 as *mut clistiter;
-    print!(
-        "{}: ",
-        CStr::from_ptr((*group).grp_display_name).to_str().unwrap()
-    );
-    cur = (*(*(*group).grp_mb_list).mb_list).first;
-    while !cur.is_null() {
-        let mut mb: *mut mailimf_mailbox = 0 as *mut mailimf_mailbox;
-        mb = (if !cur.is_null() {
-            (*cur).data
-        } else {
-            0 as *mut libc::c_void
-        }) as *mut mailimf_mailbox;
-        display_mailbox(mb);
-        cur = if !cur.is_null() {
-            (*cur).next
-        } else {
-            0 as *mut clistcell
-        }
-    }
-    print!("; ");
-}
-unsafe fn display_address(mut a: *mut mailimf_address) {
-    match (*a).ad_type {
-        2 => {
-            display_group((*a).ad_data.ad_group);
-        }
-        1 => {
-            display_mailbox((*a).ad_data.ad_mailbox);
-        }
-        _ => {}
-    };
-}
-unsafe fn display_address_list(mut addr_list: *mut mailimf_address_list) {
-    let mut cur: *mut clistiter = 0 as *mut clistiter;
-    cur = (*(*addr_list).ad_list).first;
-    while !cur.is_null() {
-        let mut addr: *mut mailimf_address = 0 as *mut mailimf_address;
-        addr = (if !cur.is_null() {
-            (*cur).data
-        } else {
-            0 as *mut libc::c_void
-        }) as *mut mailimf_address;
-        display_address(addr);
-        if !if !cur.is_null() {
-            (*cur).next
-        } else {
-            0 as *mut clistcell
-        }
-        .is_null()
-        {
-            print!(", ");
-        }
-        cur = if !cur.is_null() {
-            (*cur).next
-        } else {
-            0 as *mut clistcell
-        }
-    }
-}
-unsafe fn display_from(mut from: *mut mailimf_from) {
-    display_mailbox_list((*from).frm_mb_list);
-}
-unsafe fn display_to(mut to: *mut mailimf_to) {
-    display_address_list((*to).to_addr_list);
-}
-unsafe fn display_cc(mut cc: *mut mailimf_cc) {
-    display_address_list((*cc).cc_addr_list);
-}
-unsafe fn display_subject(mut subject: *mut mailimf_subject) {
-    print!("{}", CStr::from_ptr((*subject).sbj_value).to_str().unwrap());
-}
-unsafe fn display_field(mut field: *mut mailimf_field) {
-    match (*field).fld_type {
-        9 => {
-            print!("Date: ");
-            display_orig_date((*field).fld_data.fld_orig_date);
-            println!("");
-        }
-        10 => {
-            print!("From: ");
-            display_from((*field).fld_data.fld_from);
-            println!("");
-        }
-        13 => {
-            print!("To: ");
-            display_to((*field).fld_data.fld_to);
-            println!("");
-        }
-        14 => {
-            print!("Cc: ");
-            display_cc((*field).fld_data.fld_cc);
-            println!("");
-        }
-        19 => {
-            print!("Subject: ");
-            display_subject((*field).fld_data.fld_subject);
-            println!("");
-        }
-        16 => {
-            println!(
-                "Message-ID: {}",
-                CStr::from_ptr((*(*field).fld_data.fld_message_id).mid_value)
-                    .to_str()
-                    .unwrap(),
-            );
-        }
-        _ => {}
-    };
-}
-unsafe fn display_fields(mut fields: *mut mailimf_fields) {
-    let mut cur: *mut clistiter = 0 as *mut clistiter;
-    cur = (*(*fields).fld_list).first;
-    while !cur.is_null() {
-        let mut f: *mut mailimf_field = 0 as *mut mailimf_field;
-        f = (if !cur.is_null() {
-            (*cur).data
-        } else {
-            0 as *mut libc::c_void
-        }) as *mut mailimf_field;
-        display_field(f);
-        cur = if !cur.is_null() {
-            (*cur).next
-        } else {
-            0 as *mut clistcell
-        }
-    }
-}
--- a/mmime/src/lib.rs
+++ b/mmime/src/lib.rs
@@ -19,24 +19,44 @@
 pub mod charconv;
 pub mod chash;
 pub mod clist;
-pub mod display;
 pub mod mailimf;
+pub mod mailimf_types;
+pub mod mailimf_types_helper;
+pub mod mailimf_write_generic;
 pub mod mailmime;
+pub mod mailmime_content;
+pub mod mailmime_decode;
+pub mod mailmime_disposition;
+pub mod mailmime_types;
+pub mod mailmime_types_helper;
+pub mod mailmime_write_generic;
+pub mod mailmime_write_mem;
 pub mod mmapstring;
 pub mod other;

 pub use self::charconv::*;
 pub use self::chash::*;
 pub use self::clist::*;
-pub use self::display::*;
 pub use self::mailimf::*;
+pub use self::mailimf_types::*;
+pub use self::mailimf_types_helper::*;
+pub use self::mailimf_write_generic::*;
 pub use self::mailmime::*;
+pub use self::mailmime_content::*;
+pub use self::mailmime_decode::*;
+pub use self::mailmime_disposition::*;
+pub use self::mailmime_types::*;
+pub use self::mailmime_types_helper::*;
+pub use self::mailmime_write_generic::*;
+pub use self::mailmime_write_mem::*;
 pub use self::mmapstring::*;
 pub use self::other::*;

 #[cfg(test)]
 mod tests {
    use super::*;
+    use crate::mailmime_types::{mailmime, mailmime_content, mailmime_disposition};
+    use std::ffi::CStr;

    #[test]
    fn mailmime_parse_test() {
@@ -60,7 +80,7 @@ mod tests {

            let mut current_index = 0;
            let mut mime = std::ptr::null_mut();
-            let res = crate::mailmime::content::mailmime_parse(
+            let res = crate::mailmime_content::mailmime_parse(
                c_data.as_ptr(),
                data.len() as usize,
                &mut current_index,
@@ -72,7 +92,387 @@ mod tests {

            display_mime(mime);

-            mailmime::types::mailmime_free(mime);
+            mailmime_types::mailmime_free(mime);
+        }
+    }
+
+    unsafe fn display_mime(mut mime: *mut mailmime) {
+        let mut cur: *mut clistiter = 0 as *mut clistiter;
+        println!("{}", (*mime).mm_type);
+
+        match (*mime).mm_type {
+            1 => {
+                println!("single part");
+            }
+            2 => {
+                println!("multipart");
+            }
+            3 => println!("message"),
+            _ => {}
+        }
+        if !(*mime).mm_mime_fields.is_null() {
+            if !(*(*(*mime).mm_mime_fields).fld_list).first.is_null() {
+                print!("MIME headers begin");
+                display_mime_fields((*mime).mm_mime_fields);
+                println!("MIME headers end");
+            }
+        }
+        display_mime_content((*mime).mm_content_type);
+        match (*mime).mm_type {
+            1 => {
+                display_mime_data((*mime).mm_data.mm_single);
+            }
+            2 => {
+                cur = (*(*mime).mm_data.mm_multipart.mm_mp_list).first;
+                while !cur.is_null() {
+                    display_mime(
+                        (if !cur.is_null() {
+                            (*cur).data
+                        } else {
+                            0 as *mut libc::c_void
+                        }) as *mut mailmime,
+                    );
+                    cur = if !cur.is_null() {
+                        (*cur).next
+                    } else {
+                        0 as *mut clistcell
+                    }
+                }
+            }
+            3 => {
+                if !(*mime).mm_data.mm_message.mm_fields.is_null() {
+                    if !(*(*(*mime).mm_data.mm_message.mm_fields).fld_list)
+                        .first
+                        .is_null()
+                    {
+                        println!("headers begin");
+                        display_fields((*mime).mm_data.mm_message.mm_fields);
+                        println!("headers end");
+                    }
+                    if !(*mime).mm_data.mm_message.mm_msg_mime.is_null() {
+                        display_mime((*mime).mm_data.mm_message.mm_msg_mime);
+                    }
+                }
+            }
+            _ => {}
+        };
+    }
+
+    unsafe fn display_mime_content(mut content_type: *mut mailmime_content) {
+        print!("type: ");
+        display_mime_type((*content_type).ct_type);
+        println!(
+            "/{}",
+            CStr::from_ptr((*content_type).ct_subtype).to_str().unwrap()
+        );
+    }
+    unsafe fn display_mime_type(mut type_0: *mut mailmime_type) {
+        match (*type_0).tp_type {
+            1 => {
+                display_mime_discrete_type((*type_0).tp_data.tp_discrete_type);
+            }
+            2 => {
+                display_mime_composite_type((*type_0).tp_data.tp_composite_type);
+            }
+            _ => {}
+        };
+    }
+    unsafe fn display_mime_composite_type(mut ct: *mut mailmime_composite_type) {
+        match (*ct).ct_type {
+            1 => {
+                print!("message");
+            }
+            2 => {
+                print!("multipart");
+            }
+            3 => {
+                print!("{}", CStr::from_ptr((*ct).ct_token).to_str().unwrap());
+            }
+            _ => {}
+        };
+    }
+    unsafe fn display_mime_discrete_type(mut discrete_type: *mut mailmime_discrete_type) {
+        match (*discrete_type).dt_type {
+            1 => {
+                print!("text");
+            }
+            2 => {
+                print!("image");
+            }
+            3 => {
+                print!("audio");
+            }
+            4 => {
+                print!("video");
+            }
+            5 => {
+                print!("application");
+            }
+            6 => {
+                print!("{}", (*discrete_type).dt_extension as u8 as char);
+            }
+            _ => {}
+        };
+    }
+    unsafe fn display_mime_data(mut data: *mut mailmime_data) {
+        match (*data).dt_type {
+            0 => {
+                println!(
+                    "data : {} bytes",
+                    (*data).dt_data.dt_text.dt_length as libc::c_uint,
+                );
+            }
+            1 => {
+                println!(
+                    "data (file) : {}",
+                    CStr::from_ptr((*data).dt_data.dt_filename)
+                        .to_str()
+                        .unwrap()
+                );
+            }
+            _ => {}
+        };
+    }
+    unsafe fn display_mime_dsp_parm(mut param: *mut mailmime_disposition_parm) {
+        match (*param).pa_type {
+            0 => {
+                println!(
+                    "filename: {}",
+                    CStr::from_ptr((*param).pa_data.pa_filename)
+                        .to_str()
+                        .unwrap()
+                );
+            }
+            _ => {}
+        };
+    }
+    unsafe fn display_mime_disposition(mut disposition: *mut mailmime_disposition) {
+        let mut cur: *mut clistiter = 0 as *mut clistiter;
+        cur = (*(*disposition).dsp_parms).first;
+        while !cur.is_null() {
+            let mut param: *mut mailmime_disposition_parm = 0 as *mut mailmime_disposition_parm;
+            param = (if !cur.is_null() {
+                (*cur).data
+            } else {
+                0 as *mut libc::c_void
+            }) as *mut mailmime_disposition_parm;
+            display_mime_dsp_parm(param);
+            cur = if !cur.is_null() {
+                (*cur).next
+            } else {
+                0 as *mut clistcell
+            }
+        }
+    }
+    unsafe fn display_mime_field(mut field: *mut mailmime_field) {
+        match (*field).fld_type {
+            1 => {
+                print!("content-type: ");
+                display_mime_content((*field).fld_data.fld_content);
+                println!("");
+            }
+            6 => {
+                display_mime_disposition((*field).fld_data.fld_disposition);
+            }
+            _ => {}
+        };
+    }
+    unsafe fn display_mime_fields(mut fields: *mut mailmime_fields) {
+        let mut cur: *mut clistiter = 0 as *mut clistiter;
+        cur = (*(*fields).fld_list).first;
+        while !cur.is_null() {
+            let mut field: *mut mailmime_field = 0 as *mut mailmime_field;
+            field = (if !cur.is_null() {
+                (*cur).data
+            } else {
+                0 as *mut libc::c_void
+            }) as *mut mailmime_field;
+            display_mime_field(field);
+            cur = if !cur.is_null() {
+                (*cur).next
+            } else {
+                0 as *mut clistcell
+            }
+        }
+    }
+    unsafe fn display_date_time(mut d: *mut mailimf_date_time) {
+        print!(
+            "{:02}/{:02}/{:02} {:02}:{:02}:{:02} +{:04}",
+            (*d).dt_day,
+            (*d).dt_month,
+            (*d).dt_year,
+            (*d).dt_hour,
+            (*d).dt_min,
+            (*d).dt_sec,
+            (*d).dt_zone,
+        );
+    }
+    unsafe fn display_orig_date(mut orig_date: *mut mailimf_orig_date) {
+        display_date_time((*orig_date).dt_date_time);
+    }
+    unsafe fn display_mailbox(mut mb: *mut mailimf_mailbox) {
+        if !(*mb).mb_display_name.is_null() {
+            print!(
+                "{}",
+                CStr::from_ptr((*mb).mb_display_name).to_str().unwrap()
+            );
+        }
+        print!("<{}>", CStr::from_ptr((*mb).mb_addr_spec).to_str().unwrap());
+    }
+    unsafe fn display_mailbox_list(mut mb_list: *mut mailimf_mailbox_list) {
+        let mut cur: *mut clistiter = 0 as *mut clistiter;
+        cur = (*(*mb_list).mb_list).first;
+        while !cur.is_null() {
+            let mut mb: *mut mailimf_mailbox = 0 as *mut mailimf_mailbox;
+            mb = (if !cur.is_null() {
+                (*cur).data
+            } else {
+                0 as *mut libc::c_void
+            }) as *mut mailimf_mailbox;
+            display_mailbox(mb);
+            if !if !cur.is_null() {
+                (*cur).next
+            } else {
+                0 as *mut clistcell
+            }
+            .is_null()
+            {
+                print!(", ");
+            }
+            cur = if !cur.is_null() {
+                (*cur).next
+            } else {
+                0 as *mut clistcell
+            }
+        }
+    }
+    unsafe fn display_group(mut group: *mut mailimf_group) {
+        let mut cur: *mut clistiter = 0 as *mut clistiter;
+        print!(
+            "{}: ",
+            CStr::from_ptr((*group).grp_display_name).to_str().unwrap()
+        );
+        cur = (*(*(*group).grp_mb_list).mb_list).first;
+        while !cur.is_null() {
+            let mut mb: *mut mailimf_mailbox = 0 as *mut mailimf_mailbox;
+            mb = (if !cur.is_null() {
+                (*cur).data
+            } else {
+                0 as *mut libc::c_void
+            }) as *mut mailimf_mailbox;
+            display_mailbox(mb);
+            cur = if !cur.is_null() {
+                (*cur).next
+            } else {
+                0 as *mut clistcell
+            }
+        }
+        print!("; ");
+    }
+    unsafe fn display_address(mut a: *mut mailimf_address) {
+        match (*a).ad_type {
+            2 => {
+                display_group((*a).ad_data.ad_group);
+            }
+            1 => {
+                display_mailbox((*a).ad_data.ad_mailbox);
+            }
+            _ => {}
+        };
+    }
+    unsafe fn display_address_list(mut addr_list: *mut mailimf_address_list) {
+        let mut cur: *mut clistiter = 0 as *mut clistiter;
+        cur = (*(*addr_list).ad_list).first;
+        while !cur.is_null() {
+            let mut addr: *mut mailimf_address = 0 as *mut mailimf_address;
+            addr = (if !cur.is_null() {
+                (*cur).data
+            } else {
+                0 as *mut libc::c_void
+            }) as *mut mailimf_address;
+            display_address(addr);
+            if !if !cur.is_null() {
+                (*cur).next
+            } else {
+                0 as *mut clistcell
+            }
+            .is_null()
+            {
+                print!(", ");
+            }
+            cur = if !cur.is_null() {
+                (*cur).next
+            } else {
+                0 as *mut clistcell
+            }
+        }
+    }
+    unsafe fn display_from(mut from: *mut mailimf_from) {
+        display_mailbox_list((*from).frm_mb_list);
+    }
+    unsafe fn display_to(mut to: *mut mailimf_to) {
+        display_address_list((*to).to_addr_list);
+    }
+    unsafe fn display_cc(mut cc: *mut mailimf_cc) {
+        display_address_list((*cc).cc_addr_list);
+    }
+    unsafe fn display_subject(mut subject: *mut mailimf_subject) {
+        print!("{}", CStr::from_ptr((*subject).sbj_value).to_str().unwrap());
+    }
+    unsafe fn display_field(mut field: *mut mailimf_field) {
+        match (*field).fld_type {
+            9 => {
+                print!("Date: ");
+                display_orig_date((*field).fld_data.fld_orig_date);
+                println!("");
+            }
+            10 => {
+                print!("From: ");
+                display_from((*field).fld_data.fld_from);
+                println!("");
+            }
+            13 => {
+                print!("To: ");
+                display_to((*field).fld_data.fld_to);
+                println!("");
+            }
+            14 => {
+                print!("Cc: ");
+                display_cc((*field).fld_data.fld_cc);
+                println!("");
+            }
+            19 => {
+                print!("Subject: ");
+                display_subject((*field).fld_data.fld_subject);
+                println!("");
+            }
+            16 => {
+                println!(
+                    "Message-ID: {}",
+                    CStr::from_ptr((*(*field).fld_data.fld_message_id).mid_value)
+                        .to_str()
+                        .unwrap(),
+                );
+            }
+            _ => {}
+        };
+    }
+    unsafe fn display_fields(mut fields: *mut mailimf_fields) {
+        let mut cur: *mut clistiter = 0 as *mut clistiter;
+        cur = (*(*fields).fld_list).first;
+        while !cur.is_null() {
+            let mut f: *mut mailimf_field = 0 as *mut mailimf_field;
+            f = (if !cur.is_null() {
+                (*cur).data
+            } else {
+                0 as *mut libc::c_void
+            }) as *mut mailimf_field;
+            display_field(f);
+            cur = if !cur.is_null() {
+                (*cur).next
+            } else {
+                0 as *mut clistcell
+            }
        }
    }
 }
--- a/mmime/src/mailimf/mod.rs
+++ b/mmime/src/mailimf/mod.rs
@@ -1,13 +1,10 @@
-pub mod types;
-pub mod types_helper;
-pub(crate) mod write_generic;
-
-use libc::{self, toupper};
+use libc;
+use libc::toupper;

 use crate::clist::*;
-use crate::mailimf::types::*;
-use crate::mailmime::decode::*;
-use crate::mailmime::types::*;
+use crate::mailimf_types::*;
+use crate::mailmime_decode::*;
+use crate::mailmime_types::*;
 use crate::mmapstring::*;
 use crate::other::*;

--- a/mmime/src/mailimf_types.rs
+++ b/mmime/src/mailimf_types.rs
@@ -43,14 +43,15 @@ pub struct mailimf_date_time {
    pub dt_zone: libc::c_int,
 }
 /* this is the type of address */
+pub type unnamed = libc::c_uint;
 /* if this is a group
 (group_name: address1@domain1,
    address2@domain2; ) */
-pub const MAILIMF_ADDRESS_GROUP: libc::c_uint = 2;
+pub const MAILIMF_ADDRESS_GROUP: unnamed = 2;
 /* if this is a mailbox (mailbox@domain) */
-pub const MAILIMF_ADDRESS_MAILBOX: libc::c_uint = 1;
+pub const MAILIMF_ADDRESS_MAILBOX: unnamed = 1;
 /* on parse error */
-pub const MAILIMF_ADDRESS_ERROR: libc::c_uint = 0;
+pub const MAILIMF_ADDRESS_ERROR: unnamed = 0;
 /*
  mailimf_address is an address

@@ -888,7 +889,6 @@ pub unsafe fn mailimf_fields_new(mut fld_list: *mut clist) -> *mut mailimf_field
    (*fields).fld_list = fld_list;
    return fields;
 }
-
 #[no_mangle]
 pub unsafe fn mailimf_field_new(
    mut fld_type: libc::c_int,
@@ -948,20 +948,6 @@ pub unsafe fn mailimf_field_new(
    }
    return field;
 }
-
-#[no_mangle]
-pub unsafe fn mailimf_field_new_subject(fld_subject: *mut mailimf_subject) -> *mut mailimf_field {
-    let mut field: *mut mailimf_field = 0 as *mut mailimf_field;
-    field = malloc(::std::mem::size_of::<mailimf_field>() as libc::size_t) as *mut mailimf_field;
-    if field.is_null() {
-        return 0 as *mut mailimf_field;
-    }
-    (*field).fld_type = MAILIMF_FIELD_SUBJECT as libc::c_int;
-    (*field).fld_data.fld_subject = fld_subject;
-
-    field
-}
-
 #[no_mangle]
 pub unsafe fn mailimf_orig_date_new(
    mut dt_date_time: *mut mailimf_date_time,
--- a/mmime/src/mailimf_types_helper.rs
+++ b/mmime/src/mailimf_types_helper.rs
@@ -1,5 +1,5 @@
 use crate::clist::*;
-use crate::mailimf::types::*;
+use crate::mailimf_types::*;
 use crate::other::*;

 /*
--- a/mmime/src/mailimf_write_generic.rs
+++ b/mmime/src/mailimf_write_generic.rs
@@ -1,5 +1,5 @@
 use crate::clist::*;
-use crate::mailimf::types::*;
+use crate::mailimf_types::*;
 use crate::other::*;

 pub const STATE_WORD: libc::c_uint = 1;
@@ -1983,3 +1983,43 @@ unsafe fn mailimf_path_write_driver(
    }
    return MAILIMF_NO_ERROR as libc::c_int;
 }
+/*
+  mailimf_envelope_fields_write writes only some fields to a given stream
+
+  @param f is the stream
+  @param col (* col) is the column number where we will start to
+    write the text, the ending column will be stored in (* col)
+  @param fields is the fields to write
+*/
+pub unsafe fn mailimf_envelope_fields_write_driver(
+    mut do_write: Option<
+        unsafe fn(_: *mut libc::c_void, _: *const libc::c_char, _: size_t) -> libc::c_int,
+    >,
+    mut data: *mut libc::c_void,
+    mut col: *mut libc::c_int,
+    mut fields: *mut mailimf_fields,
+) -> libc::c_int {
+    let mut cur: *mut clistiter = 0 as *mut clistiter;
+    cur = (*(*fields).fld_list).first;
+    while !cur.is_null() {
+        let mut r: libc::c_int = 0;
+        let mut field: *mut mailimf_field = 0 as *mut mailimf_field;
+        field = (if !cur.is_null() {
+            (*cur).data
+        } else {
+            0 as *mut libc::c_void
+        }) as *mut mailimf_field;
+        if (*field).fld_type != MAILIMF_FIELD_OPTIONAL_FIELD as libc::c_int {
+            r = mailimf_field_write_driver(do_write, data, col, field);
+            if r != MAILIMF_NO_ERROR as libc::c_int {
+                return r;
+            }
+        }
+        cur = if !cur.is_null() {
+            (*cur).next
+        } else {
+            0 as *mut clistcell
+        }
+    }
+    return MAILIMF_NO_ERROR as libc::c_int;
+}
--- a/mmime/src/mailmime/mod.rs
+++ b/mmime/src/mailmime/mod.rs
@@ -1,19 +1,13 @@
-pub mod content;
-pub mod decode;
-pub mod disposition;
-pub mod types;
-pub mod types_helper;
-pub(crate) mod write_generic;
-pub mod write_mem;
+use libc;

 use libc::toupper;

 use crate::clist::*;
-use crate::mailimf::types::*;
 use crate::mailimf::*;
-use crate::mailmime::decode::*;
-use crate::mailmime::disposition::*;
-use crate::mailmime::types::*;
+use crate::mailimf_types::*;
+use crate::mailmime_decode::*;
+use crate::mailmime_disposition::*;
+use crate::mailmime_types::*;
 use crate::other::*;

 pub const MAILMIME_COMPOSITE_TYPE_EXTENSION: libc::c_uint = 3;
--- a/mmime/src/mailmime_content.rs
+++ b/mmime/src/mailmime_content.rs
@@ -1,9 +1,9 @@
 use crate::clist::*;
-use crate::mailimf::types::*;
 use crate::mailimf::*;
-use crate::mailmime::types::*;
-use crate::mailmime::types_helper::*;
+use crate::mailimf_types::*;
 use crate::mailmime::*;
+use crate::mailmime_types::*;
+use crate::mailmime_types_helper::*;
 use crate::mmapstring::*;
 use crate::other::*;

@@ -80,9 +80,9 @@ pub unsafe fn mailmime_parse(
    mut message: *const libc::c_char,
    mut length: size_t,
    mut indx: *mut size_t,
-    mut result: *mut *mut Mailmime,
+    mut result: *mut *mut mailmime,
 ) -> libc::c_int {
-    let mut mime: *mut Mailmime = 0 as *mut Mailmime;
+    let mut mime: *mut mailmime = 0 as *mut mailmime;
    let mut r: libc::c_int = 0;
    let mut res: libc::c_int = 0;
    let mut content_message: *mut mailmime_content = 0 as *mut mailmime_content;
@@ -174,7 +174,7 @@ unsafe fn mailmime_parse_with_default(
    mut default_type: libc::c_int,
    mut content_type: *mut mailmime_content,
    mut mime_fields: *mut mailmime_fields,
-    mut result: *mut *mut Mailmime,
+    mut result: *mut *mut mailmime,
 ) -> libc::c_int {
    let mut current_block: u64;
    let mut cur_token: size_t = 0;
@@ -184,8 +184,8 @@ unsafe fn mailmime_parse_with_default(
    let mut boundary: *mut libc::c_char = 0 as *mut libc::c_char;
    let mut fields: *mut mailimf_fields = 0 as *mut mailimf_fields;
    let mut list: *mut clist = 0 as *mut clist;
-    let mut msg_mime: *mut Mailmime = 0 as *mut Mailmime;
-    let mut mime: *mut Mailmime = 0 as *mut Mailmime;
+    let mut msg_mime: *mut mailmime = 0 as *mut mailmime;
+    let mut mime: *mut mailmime = 0 as *mut mailmime;
    let mut r: libc::c_int = 0;
    let mut res: libc::c_int = 0;
    let mut preamble: *mut mailmime_data = 0 as *mut mailmime_data;
@@ -312,7 +312,7 @@ unsafe fn mailmime_parse_with_default(
                        res = MAILIMF_ERROR_MEMORY as libc::c_int
                    } else {
                        list = 0 as *mut clist;
-                        msg_mime = 0 as *mut Mailmime;
+                        msg_mime = 0 as *mut mailmime;
                        fields = 0 as *mut mailimf_fields;
                        match body_type {
                            3 => {
@@ -361,7 +361,7 @@ unsafe fn mailmime_parse_with_default(
                                                current_block = 12065775993741208975;
                                            } else if r == MAILIMF_ERROR_PARSE as libc::c_int {
                                                mailmime_fields_free(mime_fields);
-                                                msg_mime = 0 as *mut Mailmime;
+                                                msg_mime = 0 as *mut mailmime;
                                                current_block = 12065775993741208975;
                                            } else {
                                                mailmime_fields_free(mime_fields);
@@ -456,7 +456,7 @@ unsafe fn mailmime_parse_with_default(
                                        clist_foreach(
                                            list,
                                            ::std::mem::transmute::<
-                                                Option<unsafe fn(_: *mut Mailmime) -> ()>,
+                                                Option<unsafe fn(_: *mut mailmime) -> ()>,
                                                clist_func,
                                            >(Some(
                                                mailmime_free,
@@ -605,7 +605,7 @@ unsafe fn mailmime_multipart_body_parse(
                                break;
                            }
                            let mut bp_token: size_t = 0;
-                            let mut mime_bp: *mut Mailmime = 0 as *mut Mailmime;
+                            let mut mime_bp: *mut mailmime = 0 as *mut mailmime;
                            let mut data_str: *const libc::c_char = 0 as *const libc::c_char;
                            let mut data_size: size_t = 0;
                            let mut fields: *mut mailimf_fields = 0 as *mut mailimf_fields;
@@ -821,7 +821,7 @@ unsafe fn mailmime_multipart_body_parse(
                        clist_foreach(
                            list,
                            ::std::mem::transmute::<
-                                Option<unsafe fn(_: *mut Mailmime) -> ()>,
+                                Option<unsafe fn(_: *mut mailmime) -> ()>,
                                clist_func,
                            >(Some(mailmime_free)),
                            0 as *mut libc::c_void,
@@ -1344,20 +1344,20 @@ pub unsafe fn mailmime_extract_boundary(
 }

 pub unsafe fn mailmime_get_section(
-    mut mime: *mut Mailmime,
+    mut mime: *mut mailmime,
    mut section: *mut mailmime_section,
-    mut result: *mut *mut Mailmime,
+    mut result: *mut *mut mailmime,
 ) -> libc::c_int {
    return mailmime_get_section_list(mime, (*(*section).sec_list).first, result);
 }
 unsafe fn mailmime_get_section_list(
-    mut mime: *mut Mailmime,
+    mut mime: *mut mailmime,
    mut list: *mut clistiter,
-    mut result: *mut *mut Mailmime,
+    mut result: *mut *mut mailmime,
 ) -> libc::c_int {
    let mut id: uint32_t = 0;
-    let mut data: *mut Mailmime = 0 as *mut Mailmime;
-    let mut submime: *mut Mailmime = 0 as *mut Mailmime;
+    let mut data: *mut mailmime = 0 as *mut mailmime;
+    let mut submime: *mut mailmime = 0 as *mut mailmime;
    if list.is_null() {
        *result = mime;
        return MAILIMF_NO_ERROR as libc::c_int;
@@ -1367,14 +1367,14 @@ unsafe fn mailmime_get_section_list(
    } else {
        0 as *mut libc::c_void
    }) as *mut uint32_t);
-    data = 0 as *mut Mailmime;
+    data = 0 as *mut mailmime;
    match (*mime).mm_type {
        1 => return MAILIMF_ERROR_INVAL as libc::c_int,
        2 => {
            data = clist_nth_data(
                (*mime).mm_data.mm_multipart.mm_mp_list,
                id.wrapping_sub(1i32 as libc::c_uint) as libc::c_int,
-            ) as *mut Mailmime;
+            ) as *mut mailmime;
            if data.is_null() {
                return MAILIMF_ERROR_INVAL as libc::c_int;
            }
@@ -1406,7 +1406,7 @@ unsafe fn mailmime_get_section_list(
                    data = clist_nth_data(
                        (*submime).mm_data.mm_multipart.mm_mp_list,
                        id.wrapping_sub(1i32 as libc::c_uint) as libc::c_int,
-                    ) as *mut Mailmime;
+                    ) as *mut mailmime;
                    if data.is_null() {
                        return MAILIMF_ERROR_INVAL as libc::c_int;
                    }
@@ -2147,7 +2147,7 @@ pub unsafe fn mailmime_part_parse_partial(
 }

 pub unsafe fn mailmime_get_section_id(
-    mut mime: *mut Mailmime,
+    mut mime: *mut mailmime,
    mut result: *mut *mut mailmime_section,
 ) -> libc::c_int {
    let mut current_block: u64;
@@ -2173,7 +2173,7 @@ pub unsafe fn mailmime_get_section_id(
        let mut id: uint32_t = 0;
        let mut p_id: *mut uint32_t = 0 as *mut uint32_t;
        let mut cur: *mut clistiter = 0 as *mut clistiter;
-        let mut parent: *mut Mailmime = 0 as *mut Mailmime;
+        let mut parent: *mut mailmime = 0 as *mut mailmime;
        r = mailmime_get_section_id((*mime).mm_parent, &mut section_id);
        if r != MAILIMF_NO_ERROR as libc::c_int {
            res = r;
--- a/mmime/src/mailmime_decode.rs
+++ b/mmime/src/mailmime_decode.rs
@@ -3,11 +3,14 @@ use libc::toupper;

 use crate::charconv::*;
 use crate::mailimf::*;
-use crate::mailmime::content::*;
-use crate::mailmime::types::*;
+use crate::mailmime_content::*;
+use crate::mailmime_types::*;
 use crate::mmapstring::*;
 use crate::other::*;

+pub const MAIL_CHARCONV_ERROR_CONV: libc::c_uint = 3;
+pub const MAIL_CHARCONV_ERROR_UNKNOWN_CHARSET: libc::c_uint = 1;
+pub const MAIL_CHARCONV_ERROR_MEMORY: libc::c_uint = 2;
 pub const TYPE_WORD: libc::c_uint = 1;
 pub const TYPE_ENCODED_WORD: libc::c_uint = 2;
 pub const MAILMIME_ENCODING_Q: libc::c_uint = 1;
@@ -847,7 +850,7 @@ unsafe fn mailmime_etoken_parse(
    return mailimf_custom_string_parse(message, length, indx, result, Some(is_etoken_char));
 }

-unsafe fn is_etoken_char(mut ch: libc::c_char) -> libc::c_int {
+pub unsafe fn is_etoken_char(mut ch: libc::c_char) -> libc::c_int {
    let mut uch: libc::c_uchar = ch as libc::c_uchar;
    if (uch as libc::c_int) < 31i32 {
        return 0i32;
--- a/mmime/src/mailmime_disposition.rs
+++ b/mmime/src/mailmime_disposition.rs
@@ -1,9 +1,10 @@
-use libc::{self, toupper};
+use libc;
+use libc::toupper;

 use crate::clist::*;
 use crate::mailimf::*;
-use crate::mailmime::types::*;
 use crate::mailmime::*;
+use crate::mailmime_types::*;
 use crate::other::*;

 pub const MAILMIME_DISPOSITION_TYPE_EXTENSION: libc::c_uint = 3;
--- a/mmime/src/mailmime_types.rs
+++ b/mmime/src/mailmime_types.rs
@@ -1,5 +1,7 @@
+use libc;
+
 use crate::clist::*;
-use crate::mailimf::types::*;
+use crate::mailimf_types::*;
 use crate::mmapstring::*;
 use crate::other::*;

@@ -162,9 +164,9 @@ pub const MAILMIME_NONE: unnamed_7 = 0;

 #[derive(Copy, Clone)]
 #[repr(C)]
-pub struct Mailmime {
+pub struct mailmime {
    pub mm_parent_type: libc::c_int,
-    pub mm_parent: *mut Mailmime,
+    pub mm_parent: *mut mailmime,
    pub mm_multipart_pos: *mut clistiter,
    pub mm_type: libc::c_int,
    pub mm_mime_start: *const libc::c_char,
@@ -186,7 +188,7 @@ pub union unnamed_8 {
 #[repr(C)]
 pub struct unnamed_9 {
    pub mm_fields: *mut mailimf_fields,
-    pub mm_msg_mime: *mut Mailmime,
+    pub mm_msg_mime: *mut mailmime,
 }
 /* multi-part */
 #[derive(Copy, Clone)]
@@ -654,15 +656,15 @@ pub unsafe fn mailmime_new(
    mut mm_epilogue: *mut mailmime_data,
    mut mm_mp_list: *mut clist,
    mut mm_fields: *mut mailimf_fields,
-    mut mm_msg_mime: *mut Mailmime,
-) -> *mut Mailmime {
-    let mut mime: *mut Mailmime = 0 as *mut Mailmime;
+    mut mm_msg_mime: *mut mailmime,
+) -> *mut mailmime {
+    let mut mime: *mut mailmime = 0 as *mut mailmime;
    let mut cur: *mut clistiter = 0 as *mut clistiter;
-    mime = malloc(::std::mem::size_of::<Mailmime>() as libc::size_t) as *mut Mailmime;
+    mime = malloc(::std::mem::size_of::<mailmime>() as libc::size_t) as *mut mailmime;
    if mime.is_null() {
-        return 0 as *mut Mailmime;
+        return 0 as *mut mailmime;
    }
-    (*mime).mm_parent = 0 as *mut Mailmime;
+    (*mime).mm_parent = 0 as *mut mailmime;
    (*mime).mm_parent_type = MAILMIME_NONE as libc::c_int;
    (*mime).mm_multipart_pos = 0 as *mut clistiter;
    (*mime).mm_type = mm_type;
@@ -679,12 +681,12 @@ pub unsafe fn mailmime_new(
            (*mime).mm_data.mm_multipart.mm_mp_list = mm_mp_list;
            cur = (*mm_mp_list).first;
            while !cur.is_null() {
-                let mut submime: *mut Mailmime = 0 as *mut Mailmime;
+                let mut submime: *mut mailmime = 0 as *mut mailmime;
                submime = (if !cur.is_null() {
                    (*cur).data
                } else {
                    0 as *mut libc::c_void
-                }) as *mut Mailmime;
+                }) as *mut mailmime;
                (*submime).mm_parent = mime;
                (*submime).mm_parent_type = MAILMIME_MULTIPLE as libc::c_int;
                (*submime).mm_multipart_pos = cur;
@@ -708,29 +710,7 @@ pub unsafe fn mailmime_new(
    return mime;
 }

-pub unsafe fn mailmime_new_simple(
-    mut mm_type: libc::c_int,
-    mut mm_mime_fields: *mut mailmime_fields,
-    mut mm_content_type: *mut mailmime_content,
-    mut mm_fields: *mut mailimf_fields,
-    mut mm_msg_mime: *mut Mailmime,
-) -> *mut Mailmime {
-    mailmime_new(
-        mm_type,
-        std::ptr::null(),
-        0,
-        mm_mime_fields,
-        mm_content_type,
-        std::ptr::null_mut(),
-        std::ptr::null_mut(),
-        std::ptr::null_mut(),
-        std::ptr::null_mut(),
-        mm_fields,
-        mm_msg_mime,
-    )
-}
-
-pub unsafe fn mailmime_free(mut mime: *mut Mailmime) {
+pub unsafe fn mailmime_free(mut mime: *mut mailmime) {
    match (*mime).mm_type {
        1 => {
            if (*mime).mm_body.is_null() && !(*mime).mm_data.mm_single.is_null() {
@@ -747,7 +727,7 @@ pub unsafe fn mailmime_free(mut mime: *mut Mailmime) {
            }
            clist_foreach(
                (*mime).mm_data.mm_multipart.mm_mp_list,
-                ::std::mem::transmute::<Option<unsafe fn(_: *mut Mailmime) -> ()>, clist_func>(
+                ::std::mem::transmute::<Option<unsafe fn(_: *mut mailmime) -> ()>, clist_func>(
                    Some(mailmime_free),
                ),
                0 as *mut libc::c_void,
--- a/mmime/src/mailmime_types_helper.rs
+++ b/mmime/src/mailmime_types_helper.rs
@@ -1,9 +1,10 @@
+use libc;
 use rand::{thread_rng, Rng};

 use crate::clist::*;
-use crate::mailimf::types::*;
-use crate::mailmime::types::*;
+use crate::mailimf_types::*;
 use crate::mailmime::*;
+use crate::mailmime_types::*;
 use crate::other::*;

 #[derive(Copy, Clone)]
@@ -636,9 +637,9 @@ pub unsafe fn mailmime_data_new_file(
    );
 }

-pub unsafe fn mailmime_new_message_data(mut msg_mime: *mut Mailmime) -> *mut Mailmime {
+pub unsafe fn mailmime_new_message_data(mut msg_mime: *mut mailmime) -> *mut mailmime {
    let mut content: *mut mailmime_content = 0 as *mut mailmime_content;
-    let mut build_info: *mut Mailmime = 0 as *mut Mailmime;
+    let mut build_info: *mut mailmime = 0 as *mut mailmime;
    let mut mime_fields: *mut mailmime_fields = 0 as *mut mailmime_fields;
    content = mailmime_get_content_message();
    if !content.is_null() {
@@ -671,15 +672,15 @@ pub unsafe fn mailmime_new_message_data(mut msg_mime: *mut Mailmime) -> *mut Mai
        }
        mailmime_content_free(content);
    }
-    return 0 as *mut Mailmime;
+    return 0 as *mut mailmime;
 }

 pub unsafe fn mailmime_new_empty(
    mut content: *mut mailmime_content,
    mut mime_fields: *mut mailmime_fields,
-) -> *mut Mailmime {
+) -> *mut mailmime {
    let mut current_block: u64;
-    let mut build_info: *mut Mailmime = 0 as *mut Mailmime;
+    let mut build_info: *mut mailmime = 0 as *mut mailmime;
    let mut list: *mut clist = 0 as *mut clist;
    let mut r: libc::c_int = 0;
    let mut mime_type: libc::c_int = 0;
@@ -822,11 +823,11 @@ pub unsafe fn mailmime_new_empty(
                        0 as *mut mailmime_data,
                        list,
                        0 as *mut mailimf_fields,
-                        0 as *mut Mailmime,
+                        0 as *mut mailmime,
                    );
                    if build_info.is_null() {
                        clist_free(list);
-                        return 0 as *mut Mailmime;
+                        return 0 as *mut mailmime;
                    }
                    return build_info;
                }
@@ -834,7 +835,7 @@ pub unsafe fn mailmime_new_empty(
        }
        _ => {}
    }
-    return 0 as *mut Mailmime;
+    return 0 as *mut mailmime;
 }

 pub unsafe fn mailmime_generate_boundary() -> *mut libc::c_char {
@@ -855,12 +856,12 @@ pub unsafe fn mailmime_generate_boundary() -> *mut libc::c_char {
 pub unsafe fn mailmime_new_with_content(
    mut content_type: *const libc::c_char,
    mut mime_fields: *mut mailmime_fields,
-    mut result: *mut *mut Mailmime,
+    mut result: *mut *mut mailmime,
 ) -> libc::c_int {
    let mut r: libc::c_int = 0;
    let mut cur_token: size_t = 0;
    let mut content: *mut mailmime_content = 0 as *mut mailmime_content;
-    let mut build_info: *mut Mailmime = 0 as *mut Mailmime;
+    let mut build_info: *mut mailmime = 0 as *mut mailmime;
    let mut res: libc::c_int = 0;
    cur_token = 0i32 as size_t;
    r = mailmime_content_parse(
@@ -885,7 +886,7 @@ pub unsafe fn mailmime_new_with_content(
 }

 pub unsafe fn mailmime_set_preamble_file(
-    mut build_info: *mut Mailmime,
+    mut build_info: *mut mailmime,
    mut filename: *mut libc::c_char,
 ) -> libc::c_int {
    let mut data: *mut mailmime_data = 0 as *mut mailmime_data;
@@ -905,7 +906,7 @@ pub unsafe fn mailmime_set_preamble_file(
 }

 pub unsafe fn mailmime_set_epilogue_file(
-    mut build_info: *mut Mailmime,
+    mut build_info: *mut mailmime,
    mut filename: *mut libc::c_char,
 ) -> libc::c_int {
    let mut data: *mut mailmime_data = 0 as *mut mailmime_data;
@@ -925,7 +926,7 @@ pub unsafe fn mailmime_set_epilogue_file(
 }

 pub unsafe fn mailmime_set_preamble_text(
-    mut build_info: *mut Mailmime,
+    mut build_info: *mut mailmime,
    mut data_str: *mut libc::c_char,
    mut length: size_t,
 ) -> libc::c_int {
@@ -946,7 +947,7 @@ pub unsafe fn mailmime_set_preamble_text(
 }

 pub unsafe fn mailmime_set_epilogue_text(
-    mut build_info: *mut Mailmime,
+    mut build_info: *mut mailmime,
    mut data_str: *mut libc::c_char,
    mut length: size_t,
 ) -> libc::c_int {
@@ -967,7 +968,7 @@ pub unsafe fn mailmime_set_epilogue_text(
 }

 pub unsafe fn mailmime_set_body_file(
-    mut build_info: *mut Mailmime,
+    mut build_info: *mut mailmime,
    mut filename: *mut libc::c_char,
 ) -> libc::c_int {
    let mut encoding: libc::c_int = 0;
@@ -989,7 +990,7 @@ pub unsafe fn mailmime_set_body_file(
 }

 pub unsafe fn mailmime_set_body_text(
-    mut build_info: *mut Mailmime,
+    mut build_info: *mut mailmime,
    mut data_str: *mut libc::c_char,
    mut length: size_t,
 ) -> libc::c_int {
@@ -1012,8 +1013,8 @@ pub unsafe fn mailmime_set_body_text(
 }

 pub unsafe fn mailmime_add_part(
-    mut build_info: *mut Mailmime,
-    mut part: *mut Mailmime,
+    mut build_info: *mut mailmime,
+    mut part: *mut mailmime,
 ) -> libc::c_int {
    let mut r: libc::c_int = 0;
    if (*build_info).mm_type == MAILMIME_MESSAGE as libc::c_int {
@@ -1038,19 +1039,19 @@ pub unsafe fn mailmime_add_part(
    return MAILIMF_NO_ERROR as libc::c_int;
 }

-pub unsafe fn mailmime_remove_part(mut mime: *mut Mailmime) {
-    let mut parent: *mut Mailmime = 0 as *mut Mailmime;
+pub unsafe fn mailmime_remove_part(mut mime: *mut mailmime) {
+    let mut parent: *mut mailmime = 0 as *mut mailmime;
    parent = (*mime).mm_parent;
    if parent.is_null() {
        return;
    }
    match (*mime).mm_parent_type {
        3 => {
-            (*mime).mm_parent = 0 as *mut Mailmime;
-            (*parent).mm_data.mm_message.mm_msg_mime = 0 as *mut Mailmime
+            (*mime).mm_parent = 0 as *mut mailmime;
+            (*parent).mm_data.mm_message.mm_msg_mime = 0 as *mut mailmime
        }
        2 => {
-            (*mime).mm_parent = 0 as *mut Mailmime;
+            (*mime).mm_parent = 0 as *mut mailmime;
            clist_delete(
                (*parent).mm_data.mm_multipart.mm_mp_list,
                (*mime).mm_multipart_pos,
@@ -1061,7 +1062,7 @@ pub unsafe fn mailmime_remove_part(mut mime: *mut Mailmime) {
 }

 pub unsafe fn mailmime_set_imf_fields(
-    mut build_info: *mut Mailmime,
+    mut build_info: *mut mailmime,
    mut mm_fields: *mut mailimf_fields,
 ) {
    (*build_info).mm_data.mm_message.mm_fields = mm_fields;
@@ -1212,11 +1213,11 @@ pub unsafe fn mailmime_single_fields_free(mut single_fields: *mut mailmime_singl
 }

 pub unsafe fn mailmime_smart_add_part(
-    mut mime: *mut Mailmime,
-    mut mime_sub: *mut Mailmime,
+    mut mime: *mut mailmime,
+    mut mime_sub: *mut mailmime,
 ) -> libc::c_int {
-    let mut saved_sub: *mut Mailmime = 0 as *mut Mailmime;
-    let mut mp: *mut Mailmime = 0 as *mut Mailmime;
+    let mut saved_sub: *mut mailmime = 0 as *mut mailmime;
+    let mut mp: *mut mailmime = 0 as *mut mailmime;
    let mut res: libc::c_int = 0;
    let mut r: libc::c_int = 0;
    match (*mime).mm_type {
@@ -1277,10 +1278,10 @@ pub unsafe fn mailmime_smart_add_part(
    return res;
 }

-pub unsafe fn mailmime_multiple_new(mut type_0: *const libc::c_char) -> *mut Mailmime {
+pub unsafe fn mailmime_multiple_new(mut type_0: *const libc::c_char) -> *mut mailmime {
    let mut mime_fields: *mut mailmime_fields = 0 as *mut mailmime_fields;
    let mut content: *mut mailmime_content = 0 as *mut mailmime_content;
-    let mut mp: *mut Mailmime = 0 as *mut Mailmime;
+    let mut mp: *mut mailmime = 0 as *mut mailmime;
    mime_fields = mailmime_fields_new_empty();
    if !mime_fields.is_null() {
        content = mailmime_content_new_with_str(type_0);
@@ -1294,7 +1295,7 @@ pub unsafe fn mailmime_multiple_new(mut type_0: *const libc::c_char) -> *mut Mai
        }
        mailmime_fields_free(mime_fields);
    }
-    return 0 as *mut Mailmime;
+    return 0 as *mut mailmime;
 }

 pub unsafe fn mailmime_content_new_with_str(mut str: *const libc::c_char) -> *mut mailmime_content {
@@ -1309,8 +1310,8 @@ pub unsafe fn mailmime_content_new_with_str(mut str: *const libc::c_char) -> *mu
    return content;
 }

-pub unsafe fn mailmime_smart_remove_part(mut mime: *mut Mailmime) -> libc::c_int {
-    let mut parent: *mut Mailmime = 0 as *mut Mailmime;
+pub unsafe fn mailmime_smart_remove_part(mut mime: *mut mailmime) -> libc::c_int {
+    let mut parent: *mut mailmime = 0 as *mut mailmime;
    let mut res: libc::c_int = 0;
    parent = (*mime).mm_parent;
    if parent.is_null() {
--- a/mmime/src/mailmime_write_generic.rs
+++ b/mmime/src/mailmime_write_generic.rs
@@ -1,11 +1,11 @@
 use std::ffi::CStr;

 use crate::clist::*;
-use crate::mailimf::write_generic::*;
-use crate::mailmime::content::*;
-use crate::mailmime::types::*;
-use crate::mailmime::types_helper::*;
+use crate::mailimf_write_generic::*;
 use crate::mailmime::*;
+use crate::mailmime_content::*;
+use crate::mailmime_types::*;
+use crate::mailmime_types_helper::*;
 use crate::other::*;

 pub const STATE_INIT: libc::c_uint = 0;
@@ -1017,7 +1017,7 @@ pub unsafe fn mailmime_write_driver(
    >,
    mut data: *mut libc::c_void,
    mut col: *mut libc::c_int,
-    mut build_info: *mut Mailmime,
+    mut build_info: *mut mailmime,
 ) -> libc::c_int {
    if !(*build_info).mm_parent.is_null() {
        return mailmime_sub_write_driver(do_write, data, col, build_info);
@@ -1038,7 +1038,7 @@ unsafe fn mailmime_part_write_driver(
    >,
    mut data: *mut libc::c_void,
    mut col: *mut libc::c_int,
-    mut build_info: *mut Mailmime,
+    mut build_info: *mut mailmime,
 ) -> libc::c_int {
    let mut current_block: u64;
    let mut cur: *mut clistiter = 0 as *mut clistiter;
@@ -1152,8 +1152,8 @@ unsafe fn mailmime_part_write_driver(
                                    current_block = 3546145585875536353;
                                    break;
                                }
-                                let mut subpart: *mut Mailmime = 0 as *mut Mailmime;
-                                subpart = (*cur).data as *mut Mailmime;
+                                let mut subpart: *mut mailmime = 0 as *mut mailmime;
+                                subpart = (*cur).data as *mut mailmime;
                                if 0 == first {
                                    r = mailimf_string_write_driver(
                                        do_write,
@@ -1421,7 +1421,7 @@ unsafe fn mailmime_sub_write_driver(
    >,
    mut data: *mut libc::c_void,
    mut col: *mut libc::c_int,
-    mut build_info: *mut Mailmime,
+    mut build_info: *mut mailmime,
 ) -> libc::c_int {
    let mut r: libc::c_int = 0;
    if !(*build_info).mm_content_type.is_null() {
--- a/mmime/src/mailmime_write_mem.rs
+++ b/mmime/src/mailmime_write_mem.rs
@@ -1,5 +1,5 @@
-use crate::mailmime::types::*;
-use crate::mailmime::write_generic::*;
+use crate::mailmime_types::*;
+use crate::mailmime_write_generic::*;
 use crate::mmapstring::*;
 use crate::other::*;

@@ -41,7 +41,7 @@ pub unsafe fn mailmime_content_type_write_mem(
 pub unsafe fn mailmime_write_mem(
    mut f: *mut MMAPString,
    mut col: *mut libc::c_int,
-    mut build_info: *mut Mailmime,
+    mut build_info: *mut mailmime,
 ) -> libc::c_int {
    return mailmime_write_driver(Some(do_write), f as *mut libc::c_void, col, build_info);
 }
--- a/mmime/src/other.rs
+++ b/mmime/src/other.rs
@@ -1,10 +1,10 @@
 use chrono::{Datelike, Local, TimeZone, Timelike};

 use crate::clist::*;
-use crate::mailimf::types::*;
-use crate::mailimf::types_helper::*;
-use crate::mailmime::types::*;
-use crate::mailmime::types_helper::*;
+use crate::mailimf_types::*;
+use crate::mailimf_types_helper::*;
+use crate::mailmime_types::*;
+use crate::mailmime_types_helper::*;

 pub(crate) use libc::{
    calloc, close, free, isalpha, isdigit, malloc, memcmp, memcpy, memmove, memset, realloc,
@@ -132,7 +132,7 @@ pub const MAILIMF_ERROR_MEMORY: libc::c_uint = 2;
 pub const MAILIMF_ERROR_PARSE: libc::c_uint = 1;
 pub const MAILIMF_NO_ERROR: libc::c_uint = 0;

-pub unsafe fn mailprivacy_prepare_mime(mut mime: *mut Mailmime) {
+pub unsafe fn mailprivacy_prepare_mime(mut mime: *mut mailmime) {
    let mut cur: *mut clistiter = 0 as *mut clistiter;
    match (*mime).mm_type {
        1 => {
@@ -143,12 +143,12 @@ pub unsafe fn mailprivacy_prepare_mime(mut mime: *mut Mailmime) {
        2 => {
            cur = (*(*mime).mm_data.mm_multipart.mm_mp_list).first;
            while !cur.is_null() {
-                let mut child: *mut Mailmime = 0 as *mut Mailmime;
+                let mut child: *mut mailmime = 0 as *mut mailmime;
                child = (if !cur.is_null() {
                    (*cur).data
                } else {
                    0 as *mut libc::c_void
-                }) as *mut Mailmime;
+                }) as *mut mailmime;
                mailprivacy_prepare_mime(child);
                cur = if !cur.is_null() {
                    (*cur).next
@@ -166,7 +166,7 @@ pub unsafe fn mailprivacy_prepare_mime(mut mime: *mut Mailmime) {
    };
 }

-unsafe fn prepare_mime_single(mut mime: *mut Mailmime) {
+unsafe fn prepare_mime_single(mut mime: *mut mailmime) {
    let mut single_fields: mailmime_single_fields = mailmime_single_fields {
        fld_content: 0 as *mut mailmime_content,
        fld_content_charset: 0 as *mut libc::c_char,
@@ -251,10 +251,10 @@ unsafe fn prepare_mime_single(mut mime: *mut Mailmime) {
 }

 pub unsafe fn mailmime_substitute(
-    mut old_mime: *mut Mailmime,
-    mut new_mime: *mut Mailmime,
+    mut old_mime: *mut mailmime,
+    mut new_mime: *mut mailmime,
 ) -> libc::c_int {
-    let mut parent: *mut Mailmime = 0 as *mut Mailmime;
+    let mut parent: *mut mailmime = 0 as *mut mailmime;
    parent = (*old_mime).mm_parent;
    if parent.is_null() {
        return MAIL_ERROR_INVAL as libc::c_int;
@@ -266,7 +266,7 @@ pub unsafe fn mailmime_substitute(
    }
    (*new_mime).mm_parent = parent;
    (*new_mime).mm_parent_type = (*old_mime).mm_parent_type;
-    (*old_mime).mm_parent = 0 as *mut Mailmime;
+    (*old_mime).mm_parent = 0 as *mut mailmime;
    (*old_mime).mm_parent_type = MAILMIME_NONE as libc::c_int;
    return MAIL_NO_ERROR as libc::c_int;
 }
--- a/proptest-regressions/dc_strencode.txt
+++ b/proptest-regressions/dc_strencode.txt
@@ -5,4 +5,3 @@
 # It is recommended to check this file in to source control so that
 # everyone who runs the test benefits from these saved cases.
 cc 679506fe9ac59df773f8cfa800fdab5f0a32fe49d2ab370394000a1aa5bc2a72 # shrinks to buf = "%0A"
-cc e34960438edb2426904b44fb4215154e7e2880f2fd1c3183b98bfcc76fec4882 # shrinks to input = " 0"
--- a/python/install_python_bindings.py
+++ b/python/install_python_bindings.py
@@ -6,7 +6,7 @@

 import os
 import subprocess
-import sys
+import os

 if __name__ == "__main__":
    os.environ["DCC_RS_TARGET"] = target = "release"
@@ -21,5 +21,5 @@ if __name__ == "__main__":
    subprocess.check_call("rm -rf build/ src/deltachat/*.so" , shell=True)

    subprocess.check_call([
-        sys.executable, "-m", "pip", "install", "-e", "."
+        "pip", "install", "-e", "."
    ])
--- a/python/src/deltachat/account.py
+++ b/python/src/deltachat/account.py
@@ -2,6 +2,7 @@

 from __future__ import print_function
 import threading
+import os
 import re
 import time
 from array import array
@@ -22,7 +23,7 @@ class Account(object):
    by the underlying deltachat c-library.  All public Account methods are
    meant to be memory-safe and return memory-safe objects.
    """
-    def __init__(self, db_path, logid=None, eventlogging=True, debug=True):
+    def __init__(self, db_path, logid=None, eventlogging=True):
        """ initialize account object.

        :param db_path: a path to the account database. The database
@@ -30,14 +31,13 @@ class Account(object):
        :param logid: an optional logging prefix that should be used with
                      the default internal logging.
        :param eventlogging: if False no eventlogging and no context callback will be configured
-        :param debug: turn on debug logging for events.
        """
        self._dc_context = ffi.gc(
            lib.dc_context_new(lib.py_dc_callback, ffi.NULL, ffi.NULL),
            _destroy_dc_context,
        )
        if eventlogging:
-            self._evlogger = EventLogger(self._dc_context, logid, debug)
+            self._evlogger = EventLogger(self._dc_context, logid)
            deltachat.set_context_callback(self._dc_context, self._process_event)
            self._threads = IOThreads(self._dc_context, self._evlogger._log_event)
        else:
@@ -48,7 +48,7 @@ class Account(object):
        if not lib.dc_open(self._dc_context, db_path, ffi.NULL):
            raise ValueError("Could not dc_open: {}".format(db_path))
        self._configkeys = self.get_config("sys.config_keys").split()
-        self._imex_events = Queue()
+        self._imex_completed = threading.Event()

    def __del__(self):
        self.shutdown()
@@ -289,64 +289,31 @@ class Account(object):
        msg_ids = [msg.id for msg in messages]
        lib.dc_delete_msgs(self._dc_context, msg_ids, len(msg_ids))

-    def export_self_keys(self, path):
-        """ export public and private keys to the specified directory. """
-        return self._export(path, imex_cmd=1)
-
-    def export_all(self, path):
-        """return new file containing a backup of all database state
-        (chats, contacts, keys, media, ...). The file is created in the
-        the `path` directory.
+    def export_to_dir(self, backupdir):
+        """return after all delta chat state is exported to a new file in
+        the specified directory.
        """
-        export_files = self._export(path, 11)
-        if len(export_files) != 1:
-            raise RuntimeError("found more than one new file")
-        return export_files[0]
-
-    def _imex_events_clear(self):
-        try:
-            while True:
-                self._imex_events.get_nowait()
-        except Empty:
-            pass
-
-    def _export(self, path, imex_cmd):
-        self._imex_events_clear()
-        lib.dc_imex(self._dc_context, imex_cmd, as_dc_charpointer(path), ffi.NULL)
+        snap_files = os.listdir(backupdir)
+        self._imex_completed.clear()
+        lib.dc_imex(self._dc_context, 11, as_dc_charpointer(backupdir), ffi.NULL)
        if not self._threads.is_started():
            lib.dc_perform_imap_jobs(self._dc_context)
-        files_written = []
-        while True:
-            ev = self._imex_events.get()
-            if isinstance(ev, str):
-                files_written.append(ev)
-            elif isinstance(ev, bool):
-                if not ev:
-                    raise ValueError("export failed, exp-files: {}".format(files_written))
-                return files_written
+        self._imex_completed.wait()
+        for x in os.listdir(backupdir):
+            if x not in snap_files:
+                return os.path.join(backupdir, x)

-    def import_self_keys(self, path):
-        """ Import private keys found in the `path` directory.
-        The last imported key is made the default keys unless its name
-        contains the string legacy. Public keys are not imported.
-        """
-        self._import(path, imex_cmd=2)
-
-    def import_all(self, path):
-        """import delta chat state from the specified backup `path` (a file).
+    def import_from_file(self, path):
+        """import delta chat state from the specified backup file.

        The account must be in unconfigured state for import to attempted.
        """
        assert not self.is_configured(), "cannot import into configured account"
-        self._import(path, imex_cmd=12)
-
-    def _import(self, path, imex_cmd):
-        self._imex_events_clear()
-        lib.dc_imex(self._dc_context, imex_cmd, as_dc_charpointer(path), ffi.NULL)
+        self._imex_completed.clear()
+        lib.dc_imex(self._dc_context, 12, as_dc_charpointer(path), ffi.NULL)
        if not self._threads.is_started():
            lib.dc_perform_imap_jobs(self._dc_context)
-        if not self._imex_events.get():
-            raise ValueError("import from path '{}' failed".format(path))
+        self._imex_completed.wait()

    def initiate_key_transfer(self):
        """return setup code after a Autocrypt setup message
@@ -456,12 +423,7 @@ class Account(object):

    def on_dc_event_imex_progress(self, data1, data2):
        if data1 == 1000:
-            self._imex_events.put(True)
-        elif data1 == 0:
-            self._imex_events.put(False)
-
-    def on_dc_event_imex_file_written(self, data1, data2):
-        self._imex_events.put(data1)
+            self._imex_completed.set()


 class IOThreads:
--- a/python/src/deltachat/message.py
+++ b/python/src/deltachat/message.py
@@ -101,10 +101,6 @@ class Message(object):
        """ return True if this message is a setup message. """
        return lib.dc_msg_is_setupmessage(self._dc_msg)

-    def get_setupcodebegin(self):
-        """ return the first characters of a setup code in a setup message. """
-        return from_dc_charpointer(lib.dc_msg_get_setupcodebegin(self._dc_msg))
-
    def is_encrypted(self):
        """ return True if this message was encrypted. """
        return bool(lib.dc_msg_get_showpadlock(self._dc_msg))
--- a/python/tests/test_account.py
+++ b/python/tests/test_account.py
@@ -93,9 +93,8 @@ class TestOfflineContact:
        ac1 = acfactory.get_configured_offline_account()
        contact1 = ac1.create_contact(email="some1@example.com", name="some1")
        chat = ac1.create_chat_by_contact(contact1)
-        msg = chat.send_text("one messae")
+        chat.send_text("one messae")
        assert not ac1.delete_contact(contact1)
-        assert not msg.filemime


 class TestOfflineChat:
@@ -294,10 +293,10 @@ class TestOfflineChat:
        assert contact == ac1.get_self_contact()
        assert not backupdir.listdir()

-        path = ac1.export_all(backupdir.strpath)
+        path = ac1.export_to_dir(backupdir.strpath)
        assert os.path.exists(path)
        ac2 = acfactory.get_unconfigured_account()
-        ac2.import_all(path)
+        ac2.import_from_file(path)
        contacts = ac2.get_contacts(query="some1")
        assert len(contacts) == 1
        contact2 = contacts[0]
@@ -341,16 +340,6 @@ class TestOnlineAccount:
        assert chat.id > const.DC_CHAT_ID_LAST_SPECIAL
        return chat

-    def test_export_import_self_keys(self, acfactory, tmpdir):
-        ac1, ac2 = acfactory.get_two_online_accounts()
-        dir = tmpdir.mkdir("exportdir")
-        export_files = ac1.export_self_keys(dir.strpath)
-        assert len(export_files) == 2
-        for x in export_files:
-            assert x.startswith(dir.strpath)
-        ac1._evlogger.consume_events()
-        ac1.import_self_keys(dir.strpath)
-
    def test_one_account_send(self, acfactory):
        ac1 = acfactory.get_online_configuring_account()
        c2 = ac1.create_contact(email=ac1.get_config("addr"))
@@ -512,7 +501,7 @@ class TestOnlineAccount:
        assert os.path.exists(msg_in.filename)
        assert os.stat(msg_in.filename).st_size == os.stat(path).st_size

-    def test_import_export_online_all(self, acfactory, tmpdir):
+    def test_import_export_online(self, acfactory, tmpdir):
        ac1 = acfactory.get_online_configuring_account()
        wait_configuration_progress(ac1, 1000)

@@ -520,11 +509,11 @@ class TestOnlineAccount:
        chat = ac1.create_chat_by_contact(contact1)
        chat.send_text("msg1")
        backupdir = tmpdir.mkdir("backup")
-        path = ac1.export_all(backupdir.strpath)
+        path = ac1.export_to_dir(backupdir.strpath)
        assert os.path.exists(path)

        ac2 = acfactory.get_unconfigured_account()
-        ac2.import_all(path)
+        ac2.import_from_file(path)
        contacts = ac2.get_contacts(query="some1")
        assert len(contacts) == 1
        contact2 = contacts[0]
@@ -534,7 +523,7 @@ class TestOnlineAccount:
        assert len(messages) == 1
        assert messages[0].text == "msg1"

-    def test_ac_setup_message(self, acfactory, lp):
+    def test_ac_setup_message(self, acfactory):
        # note that the receiving account needs to be configured and running
        # before ther setup message is send. DC does not read old messages
        # as of Jul2019
@@ -542,18 +531,15 @@ class TestOnlineAccount:
        ac2 = acfactory.clone_online_account(ac1)
        wait_configuration_progress(ac2, 1000)
        wait_configuration_progress(ac1, 1000)
-        lp.sec("trigger ac setup message and return setupcode")
        assert ac1.get_info()["fingerprint"] != ac2.get_info()["fingerprint"]
        setup_code = ac1.initiate_key_transfer()
        ac2._evlogger.set_timeout(30)
        ev = ac2._evlogger.get_matching("DC_EVENT_INCOMING_MSG|DC_EVENT_MSGS_CHANGED")
        msg = ac2.get_message_by_id(ev[2])
        assert msg.is_setup_message()
-        assert msg.get_setupcodebegin() == setup_code[:2]
-        lp.sec("try a bad setup code")
+        # first try a bad setup code
        with pytest.raises(ValueError):
            msg.continue_key_transfer(str(reversed(setup_code)))
-        lp.sec("try a good setup code")
        print("*************** Incoming ASM File at: ", msg.filename)
        print("*************** Setup Code: ", setup_code)
        msg.continue_key_transfer(setup_code)
--- a/python/tests/test_lowlevel.py
+++ b/python/tests/test_lowlevel.py
@@ -108,43 +108,3 @@ def test_provider_info():

 def test_provider_info_none():
    assert lib.dc_provider_new_from_email(cutil.as_dc_charpointer("email@unexistent.no")) == ffi.NULL
-
-
-def test_get_info_closed():
-    ctx = ffi.gc(
-        lib.dc_context_new(lib.py_dc_callback, ffi.NULL, ffi.NULL),
-        lib.dc_context_unref,
-    )
-    info = cutil.from_dc_charpointer(lib.dc_get_info(ctx))
-    assert 'deltachat_core_version' in info
-    assert 'database_dir' not in info
-
-
-def test_get_info_open(tmpdir):
-    ctx = ffi.gc(
-        lib.dc_context_new(lib.py_dc_callback, ffi.NULL, ffi.NULL),
-        lib.dc_context_unref,
-    )
-    db_fname = tmpdir.join("test.db")
-    lib.dc_open(ctx, db_fname.strpath.encode("ascii"), ffi.NULL)
-    info = cutil.from_dc_charpointer(lib.dc_get_info(ctx))
-    assert 'deltachat_core_version' in info
-    assert 'database_dir' in info
-
-
-def test_is_open_closed():
-    ctx = ffi.gc(
-        lib.dc_context_new(lib.py_dc_callback, ffi.NULL, ffi.NULL),
-        lib.dc_context_unref,
-    )
-    assert lib.dc_is_open(ctx) == 0
-
-
-def test_is_open_actually_open(tmpdir):
-    ctx = ffi.gc(
-        lib.dc_context_new(lib.py_dc_callback, ffi.NULL, ffi.NULL),
-        lib.dc_context_unref,
-    )
-    db_fname = tmpdir.join("test.db")
-    lib.dc_open(ctx, db_fname.strpath.encode("ascii"), ffi.NULL)
-    assert lib.dc_is_open(ctx) == 1
--- a/spec.md
+++ b/spec.md
@@ -117,8 +117,7 @@ The sender plus the recipients are the group members.
 To allow different groups with the same members,
 groups are identified by a group-id.
 The group-id MUST be created only from the characters
-`0`-`9`, `A`-`Z`, `a`-`z` `_` and `-`
-and MUST have a length of at least 11 characters.
+`0`-`9`, `A`-`Z`, `a`-`z` `_` and `-`.

 Groups MUST have a group-name.
 The group-name is any non-zero-length UTF-8 string.
@@ -145,9 +144,9 @@ The message-id MUST have the format `Gr.<group-id>.<unique data>`.
    From: member1@domain
    To: member2@domain, member3@domain
    Chat-Version: 1.0
-    Chat-Group-ID: 12345uvwxyZ
+    Chat-Group-ID: 1234xyZ
    Chat-Group-Name: My Group
-    Message-ID: Gr.12345uvwxyZ.0001@domain
+    Message-ID: Gr.1234xyZ.0001@domain
    Subject: Chat: My Group: Hello group ...

    Hello group - this group contains three members
@@ -197,10 +196,10 @@ and the message SHOULD appear as a message or action from the sender.
    From: member1@domain
    To: member2@domain, member3@domain, member4@domain
    Chat-Version: 1.0
-    Chat-Group-ID: 12345uvwxyZ
+    Chat-Group-ID: 1234xyZ
    Chat-Group-Name: My Group
    Chat-Group-Member-Added: member4@domain
-    Message-ID: Gr.12345uvwxyZ.0002@domain
+    Message-ID: Gr.1234xyZ.0002@domain
    Subject: Chat: My Group: Hello, ...

    Hello, I've added member4@domain to our group.  Now we have 4 members.
@@ -210,10 +209,10 @@ To remove a member:
    From: member1@domain
    To: member2@domain, member3@domain
    Chat-Version: 1.0
-    Chat-Group-ID: 12345uvwxyZ
+    Chat-Group-ID: 1234xyZ
    Chat-Group-Name: My Group
    Chat-Group-Member-Removed: member4@domain
-    Message-ID: Gr.12345uvwxyZ.0003@domain
+    Message-ID: Gr.1234xyZ.0003@domain
    Subject: Chat: My Group: Hello, ...

    Hello, I've removed member4@domain from our group.  Now we have 3 members.
@@ -234,10 +233,10 @@ and the message SHOULD appear as a message or action from the sender.
    From: member1@domain
    To: member2@domain, member3@domain
    Chat-Version: 1.0
-    Chat-Group-ID: 12345uvwxyZ
+    Chat-Group-ID: 1234xyZ
    Chat-Group-Name: Our Group
    Chat-Group-Name-Changed: My Group
-    Message-ID: Gr.12345uvwxyZ.0004@domain
+    Message-ID: Gr.1234xyZ.0004@domain
    Subject: Chat: Our Group: Hello, ...

    Hello, I've changed the group name from "My Group" to "Our Group".
@@ -263,10 +262,10 @@ and the message SHOULD appear as a message or action from the sender.
    From: member1@domain
    To: member2@domain, member3@domain
    Chat-Version: 1.0
-    Chat-Group-ID: 12345uvwxyZ
+    Chat-Group-ID: 1234xyZ
    Chat-Group-Name: Our Group
    Chat-Group-Image: image.jpg
-    Message-ID: Gr.12345uvwxyZ.0005@domain
+    Message-ID: Gr.1234xyZ.0005@domain
    Subject: Chat: Our Group: Hello, ...
    Content-Type: multipart/mixed; boundary="==break=="

--- a/src/aheader.rs
+++ b/src/aheader.rs
@@ -3,7 +3,7 @@ use std::ffi::CStr;
 use std::str::FromStr;
 use std::{fmt, str};

-use mmime::mailimf::types::*;
+use mmime::mailimf_types::*;

 use crate::constants::*;
 use crate::contact::*;
--- a/src/chat.rs
+++ b/src/chat.rs
@@ -925,9 +925,7 @@ fn get_draft_msg_id(context: &Context, chat_id: u32) -> u32 {
 }

 pub fn get_draft(context: &Context, chat_id: u32) -> Result<Option<Message>, Error> {
-    if chat_id <= DC_CHAT_ID_LAST_SPECIAL {
-        return Ok(None);
-    }
+    ensure!(chat_id > DC_CHAT_ID_LAST_SPECIAL, "Invalid chat ID");
    let draft_msg_id = get_draft_msg_id(context, chat_id);
    if draft_msg_id == 0 {
        return Ok(None);
@@ -1334,7 +1332,7 @@ pub fn add_to_chat_contacts_table(context: &Context, chat_id: u32, contact_id: u

 pub fn add_contact_to_chat(context: &Context, chat_id: u32, contact_id: u32) -> bool {
    match add_contact_to_chat_ex(context, chat_id, contact_id, false) {
-        Ok(res) => res,
+        Ok(res) => res, 
        Err(err) => {
            error!(context, "failed to add contact: {}", err);
            false
@@ -1349,10 +1347,7 @@ pub(crate) fn add_contact_to_chat_ex(
    contact_id: u32,
    from_handshake: bool,
 ) -> Result<bool, Error> {
-    ensure!(
-        chat_id > DC_CHAT_ID_LAST_SPECIAL,
-        "can not add member to special chats"
-    );
+    ensure!(chat_id > DC_CHAT_ID_LAST_SPECIAL, "can not add member to special chats");
    let contact = Contact::get_by_id(context, contact_id)?;
    let mut msg = Message::default();

@@ -1360,77 +1355,74 @@ pub(crate) fn add_contact_to_chat_ex(

    /*this also makes sure, not contacts are added to special or normal chats*/
    let mut chat = Chat::load_from_db(context, chat_id)?;
-    ensure!(
-        real_group_exists(context, chat_id),
-        "chat_id {} is not a group where one can add members",
-        chat_id
-    );
-    ensure!(
-        Contact::real_exists_by_id(context, contact_id) && contact_id != DC_CONTACT_ID_SELF,
-        "invalid contact_id {} for removal in group",
-        contact_id
-    );
+    ensure!(real_group_exists(context, chat_id), 
+            "chat_id {} is not a group where one can add members", chat_id);
+    ensure!(Contact::real_exists_by_id(context, contact_id) && contact_id != DC_CONTACT_ID_SELF,
+            "invalid contact_id {} for removal in group", contact_id);

-    if !is_contact_in_chat(context, chat_id, DC_CONTACT_ID_SELF as u32) {
-        /* we should respect this - whatever we send to the group, it gets discarded anyway! */
-        emit_event!(
-            context,
-            Event::ErrorSelfNotInGroup("Cannot add contact to group; self not in group.".into())
-        );
-        bail!("can not add contact because our account is not part of it");
-    }
-    if from_handshake && chat.param.get_int(Param::Unpromoted).unwrap_or_default() == 1 {
-        chat.param.remove(Param::Unpromoted);
-        chat.update_param(context).unwrap();
-    }
-    let self_addr = context
-        .sql
-        .get_config(context, "configured_addr")
-        .unwrap_or_default();
-    if contact.get_addr() == &self_addr {
-        bail!("invalid attempt to add self e-mail address to group");
-    }
-    // ourself is added using DC_CONTACT_ID_SELF, do not add it explicitly.
-    // if SELF is not in the group, members cannot be added at all.
-
-    if is_contact_in_chat(context, chat_id, contact_id) {
-        if !from_handshake {
-            return Ok(true);
-        }
-    } else {
-        // else continue and send status mail
-        if chat.typ == Chattype::VerifiedGroup {
-            if contact.is_verified(context) != VerifiedStatus::BidirectVerified {
-                error!(
+            if !is_contact_in_chat(context, chat_id, DC_CONTACT_ID_SELF as u32) {
+                /* we should respect this - whatever we send to the group, it gets discarded anyway! */
+                emit_event!(
                    context,
-                    "Only bidirectional verified contacts can be added to verified groups."
+                    Event::ErrorSelfNotInGroup(
+                        "Cannot add contact to group; self not in group.".into()
+                    )
                );
-                return Ok(false);
+                bail!("can not add contact because our account is not part of it");
            }
-        }
-        if !add_to_chat_contacts_table(context, chat_id, contact_id) {
-            return Ok(false);
-        }
-    }
-    if chat.param.get_int(Param::Unpromoted).unwrap_or_default() == 0 {
-        msg.type_0 = Viewtype::Text;
-        msg.text = Some(context.stock_system_msg(
-            StockMessage::MsgAddMember,
-            contact.get_addr(),
-            "",
-            DC_CONTACT_ID_SELF as u32,
-        ));
-        msg.param.set_int(Param::Cmd, 4);
-        msg.param.set(Param::Arg, contact.get_addr());
-        msg.param.set_int(Param::Arg2, from_handshake.into());
-        msg.id = send_msg(context, chat_id, &mut msg).unwrap_or_default();
-        context.call_cb(Event::MsgsChanged {
-            chat_id,
-            msg_id: msg.id,
-        });
-    }
-    context.call_cb(Event::MsgsChanged { chat_id, msg_id: 0 });
-    return Ok(true);
+                if from_handshake && chat.param.get_int(Param::Unpromoted).unwrap_or_default() == 1
+                {
+                    chat.param.remove(Param::Unpromoted);
+                    chat.update_param(context).unwrap();
+                }
+                let self_addr = context
+                    .sql
+                    .get_config(context, "configured_addr")
+                    .unwrap_or_default();
+                if contact.get_addr() == &self_addr {
+                    bail!("invalid attempt to add self e-mail address to group");
+                }
+                    // ourself is added using DC_CONTACT_ID_SELF, do not add it explicitly.
+                    // if SELF is not in the group, members cannot be added at all.
+
+                    if is_contact_in_chat(context, chat_id, contact_id) {
+                        if !from_handshake {
+                            return Ok(true);
+                        }
+                    } else {
+                        // else continue and send status mail
+                        if chat.typ == Chattype::VerifiedGroup {
+                            if contact.is_verified(context) != VerifiedStatus::BidirectVerified {
+                                error!(
+                                    context,
+                                    "Only bidirectional verified contacts can be added to verified groups."
+                                );
+                                return Ok(false);
+                            }
+                        }
+                            if !add_to_chat_contacts_table(context, chat_id, contact_id) {
+                                return Ok(false);
+                            }
+                    }
+                        if chat.param.get_int(Param::Unpromoted).unwrap_or_default() == 0 {
+                            msg.type_0 = Viewtype::Text;
+                            msg.text = Some(context.stock_system_msg(
+                                StockMessage::MsgAddMember,
+                                contact.get_addr(),
+                                "",
+                                DC_CONTACT_ID_SELF as u32,
+                            ));
+                            msg.param.set_int(Param::Cmd, 4);
+                            msg.param.set(Param::Arg, contact.get_addr());
+                            msg.param.set_int(Param::Arg2, from_handshake.into());
+                            msg.id = send_msg(context, chat_id, &mut msg).unwrap_or_default();
+                            context.call_cb(Event::MsgsChanged {
+                                chat_id,
+                                msg_id: msg.id,
+                            });
+                        }
+                        context.call_cb(Event::MsgsChanged { chat_id, msg_id: 0 });
+                        return Ok(true);
 }

 fn real_group_exists(context: &Context, chat_id: u32) -> bool {
@@ -1888,8 +1880,8 @@ mod tests {
    #[test]
    fn test_get_draft_special_chat_id() {
        let t = dummy_context();
-        let draft = get_draft(&t.ctx, DC_CHAT_ID_LAST_SPECIAL).unwrap();
-        assert!(draft.is_none());
+        let draft = get_draft(&t.ctx, DC_CHAT_ID_LAST_SPECIAL);
+        assert!(draft.is_err());
    }

    #[test]
--- a/src/constants.rs
+++ b/src/constants.rs
@@ -64,6 +64,15 @@ pub const DC_GCL_ADD_SELF: usize = 0x02;
 pub(crate) const DC_FP_NO_AUTOCRYPT_HEADER: i32 = 2;
 pub(crate) const DC_FP_ADD_AUTOCRYPT_HEADER: i32 = 1;

+/// param1 is a directory where the keys are written to
+const DC_IMEX_EXPORT_SELF_KEYS: usize = 1;
+/// param1 is a directory where the keys are searched in and read from
+const DC_IMEX_IMPORT_SELF_KEYS: usize = 2;
+/// param1 is a directory where the backup is written to
+const DC_IMEX_EXPORT_BACKUP: usize = 11;
+/// param1 is the file with the backup to import
+const DC_IMEX_IMPORT_BACKUP: usize = 12;
+
 /// virtual chat showing all messages belonging to chats flagged with chats.blocked=2
 pub(crate) const DC_CHAT_ID_DEADDROP: u32 = 1;
 /// messages that should be deleted get this chat_id; the messages are deleted from the working thread later then. This is also needed as rfc724_mid should be preset as long as the message is not deleted on the server (otherwise it is downloaded again)
--- a/src/contact.rs
+++ b/src/contact.rs
@@ -804,14 +804,14 @@ impl Contact {
        }

        if let Some(peerstate) = peerstate {
-            if peerstate.verified_key.is_some() {
+            if peerstate.verified_key().is_some() {
                return VerifiedStatus::BidirectVerified;
            }
        }

        let peerstate = Peerstate::from_addr(context, &context.sql, &self.addr);
        if let Some(ps) = peerstate {
-            if ps.verified_key.is_some() {
+            if ps.verified_key().is_some() {
                return VerifiedStatus::BidirectVerified;
            }
        }
--- a/src/context.rs
+++ b/src/context.rs
@@ -66,30 +66,6 @@ pub struct RunningState {
    pub shall_stop_ongoing: bool,
 }

-/// Return some info about deltachat-core
-///
-/// This contains information mostly about the library itself, the
-/// actual keys and their values which will be present are not
-/// guaranteed.  Calling [Context::get_info] also includes information
-/// about the context on top of the information here.
-pub fn get_info() -> HashMap<&'static str, String> {
-    let mut res = HashMap::new();
-    res.insert("deltachat_core_version", format!("v{}", &*DC_VERSION_STR));
-    res.insert("sqlite_version", rusqlite::version().to_string());
-    res.insert(
-        "sqlite_thread_safe",
-        unsafe { rusqlite::ffi::sqlite3_threadsafe() }.to_string(),
-    );
-    res.insert(
-        "arch",
-        (::std::mem::size_of::<*mut libc::c_void>())
-            .wrapping_mul(8)
-            .to_string(),
-    );
-    res.insert("level", "awesome".into());
-    res
-}
-
 impl Context {
    pub fn new(cb: Box<ContextCallback>, os_name: String, dbfile: PathBuf) -> Result<Context> {
        let mut blob_fname = OsString::new();
@@ -233,7 +209,19 @@ impl Context {
            .get_config(self, "configured_mvbox_folder")
            .unwrap_or_else(|| "<unset>".to_string());

-        let mut res = get_info();
+        let mut res = HashMap::new();
+        res.insert("deltachat_core_version", format!("v{}", &*DC_VERSION_STR));
+        res.insert("sqlite_version", rusqlite::version().to_string());
+        res.insert(
+            "sqlite_thread_safe",
+            unsafe { rusqlite::ffi::sqlite3_threadsafe() }.to_string(),
+        );
+        res.insert(
+            "arch",
+            (::std::mem::size_of::<*mut libc::c_void>())
+                .wrapping_mul(8)
+                .to_string(),
+        );
        res.insert("number_of_chats", chats.to_string());
        res.insert("number_of_chat_messages", real_msgs.to_string());
        res.insert("messages_in_contact_requests", deaddrop_msgs.to_string());
@@ -263,6 +251,7 @@ impl Context {
            pub_key_cnt.unwrap_or_default().to_string(),
        );
        res.insert("fingerprint", fingerprint_str);
+        res.insert("level", "awesome".into());

        res
    }
@@ -515,14 +504,6 @@ mod tests {
        let t = dummy_context();

        let info = t.ctx.get_info();
-        assert!(info.get("database_dir").is_some());
-    }
-
-    #[test]
-    fn test_get_info_no_context() {
-        let info = get_info();
-        assert!(info.get("deltachat_core_version").is_some());
-        assert!(info.get("database_dir").is_none());
        assert_eq!(info.get("level").unwrap(), "awesome");
    }
 }
--- a/src/dc_imex.rs
+++ b/src/dc_imex.rs
--- a/src/dc_mimeparser.rs
+++ b/src/dc_mimeparser.rs
@@ -5,12 +5,13 @@ use std::ptr;
 use charset::Charset;
 use deltachat_derive::{FromSql, ToSql};
 use libc::{strcmp, strlen, strncmp};
-use mmime::mailimf::types::*;
+use mmime::clist::*;
 use mmime::mailimf::*;
-use mmime::mailmime::content::*;
-use mmime::mailmime::disposition::*;
-use mmime::mailmime::types::*;
+use mmime::mailimf_types::*;
 use mmime::mailmime::*;
+use mmime::mailmime_content::*;
+use mmime::mailmime_disposition::*;
+use mmime::mailmime_types::*;
 use mmime::mmapstring::*;
 use mmime::other::*;

@@ -20,7 +21,7 @@ use crate::context::Context;
 use crate::dc_simplify::*;
 use crate::dc_strencode::*;
 use crate::dc_tools::*;
-use crate::e2ee;
+use crate::e2ee::*;
 use crate::error::Error;
 use crate::location;
 use crate::param::*;
@@ -30,18 +31,16 @@ use crate::stock::StockMessage;
 pub struct MimeParser<'a> {
    pub context: &'a Context,
    pub parts: Vec<Part>,
-    pub mimeroot: *mut Mailmime,
+    pub mimeroot: *mut mailmime,
    pub header: HashMap<String, *mut mailimf_field>,
    pub header_root: *mut mailimf_fields,
    pub header_protected: *mut mailimf_fields,
    pub subject: Option<String>,
    pub is_send_by_messenger: bool,
    pub decrypting_failed: bool,
-    pub encrypted: bool,
-    pub signatures: HashSet<String>,
-    pub gossipped_addr: HashSet<String>,
+    pub e2ee_helper: E2eeHelper,
    pub is_forwarded: bool,
-    pub reports: Vec<*mut Mailmime>,
+    pub reports: Vec<*mut mailmime>,
    pub is_system_message: SystemMessage,
    pub location_kml: Option<location::Kml>,
    pub message_kml: Option<location::Kml>,
@@ -93,9 +92,7 @@ impl<'a> MimeParser<'a> {
            subject: None,
            is_send_by_messenger: false,
            decrypting_failed: false,
-            encrypted: false,
-            signatures: Default::default(),
-            gossipped_addr: Default::default(),
+            e2ee_helper: Default::default(),
            is_forwarded: false,
            context,
            reports: Vec::new(),
@@ -105,7 +102,7 @@ impl<'a> MimeParser<'a> {
        }
    }

-    pub unsafe fn parse(&mut self, body: &[u8]) -> Result<(), Error> {
+    pub unsafe fn parse(&mut self, body: &[u8]) {
        let mut index = 0;

        let r = mailmime_parse(
@@ -116,11 +113,7 @@ impl<'a> MimeParser<'a> {
        );

        if r == MAILIMF_NO_ERROR as libc::c_int && !self.mimeroot.is_null() {
-            let (encrypted, signatures, gossipped_addr) =
-                e2ee::try_decrypt(self.context, self.mimeroot)?;
-            self.encrypted = encrypted;
-            self.signatures = signatures;
-            self.gossipped_addr = gossipped_addr;
+            self.e2ee_helper.decrypt(self.context, self.mimeroot);
            self.parse_mime_recursive(self.mimeroot);

            if let Some(field) = self.lookup_field("Subject") {
@@ -324,7 +317,6 @@ impl<'a> MimeParser<'a> {
            }
            self.parts.push(part_5);
        }
-        Ok(())
    }

    pub fn get_last_nonmeta(&mut self) -> Option<&mut Part> {
@@ -371,7 +363,7 @@ impl<'a> MimeParser<'a> {
        }
    }

-    unsafe fn parse_mime_recursive(&mut self, mime: *mut Mailmime) -> bool {
+    unsafe fn parse_mime_recursive(&mut self, mime: *mut mailmime) -> bool {
        if mime.is_null() {
            return false;
        }
@@ -436,7 +428,7 @@ impl<'a> MimeParser<'a> {
        }
    }

-    unsafe fn handle_multiple(&mut self, mime: *mut Mailmime) -> bool {
+    unsafe fn handle_multiple(&mut self, mime: *mut mailmime) -> bool {
        let mut any_part_added = false;
        match mailmime_get_mime_type(mime) {
            /* Most times, mutlipart/alternative contains true alternatives
@@ -476,7 +468,7 @@ impl<'a> MimeParser<'a> {
                however, most times it seems okay. */
                let cur = (*(*mime).mm_data.mm_multipart.mm_mp_list).first;
                if !cur.is_null() {
-                    any_part_added = self.parse_mime_recursive((*cur).data as *mut Mailmime);
+                    any_part_added = self.parse_mime_recursive((*cur).data as *mut mailmime);
                }
            }
            (DC_MIMETYPE_MP_NOT_DECRYPTABLE, _, _) => {
@@ -546,7 +538,7 @@ impl<'a> MimeParser<'a> {
                            plain_cnt += 1;
                        }
                        (DC_MIMETYPE_TEXT_HTML, _, _) => {
-                            html_part = cur_data as *mut Mailmime;
+                            html_part = cur_data as *mut mailmime;
                            html_cnt += 1;
                        }
                        _ => {}
@@ -573,7 +565,7 @@ impl<'a> MimeParser<'a> {
        any_part_added
    }

-    unsafe fn add_single_part_if_known(&mut self, mime: *mut Mailmime) -> bool {
+    unsafe fn add_single_part_if_known(&mut self, mime: *mut mailmime) -> bool {
        // return true if a part was added
        if mime.is_null() || (*mime).mm_data.mm_single.is_null() {
            return false;
@@ -801,9 +793,9 @@ impl<'a> MimeParser<'a> {
    }

    fn do_add_single_part(&mut self, mut part: Part) {
-        if self.encrypted && self.signatures.len() > 0 {
+        if self.e2ee_helper.encrypted && self.e2ee_helper.signatures.len() > 0 {
            part.param.set_int(Param::GuranteeE2ee, 1);
-        } else if self.encrypted {
+        } else if self.e2ee_helper.encrypted {
            part.param.set_int(Param::ErroneousE2ee, 0x2);
        }
        self.parts.push(part);
@@ -897,6 +889,7 @@ impl<'a> Drop for MimeParser<'a> {
        if !self.mimeroot.is_null() {
            unsafe { mailmime_free(self.mimeroot) };
        }
+        unsafe { self.e2ee_helper.thanks() };
    }
 }

@@ -976,7 +969,7 @@ unsafe fn hash_header(out: &mut HashMap<String, *mut mailimf_field>, in_0: *cons
    }
 }

-unsafe fn mailmime_get_mime_type(mime: *mut Mailmime) -> (libc::c_int, Viewtype, Option<String>) {
+unsafe fn mailmime_get_mime_type(mime: *mut mailmime) -> (libc::c_int, Viewtype, Option<String>) {
    let c = (*mime).mm_content_type;

    let unknown_type = (0, Viewtype::Unknown, None);
@@ -1063,8 +1056,7 @@ unsafe fn mailmime_get_mime_type(mime: *mut Mailmime) -> (libc::c_int, Viewtype,
                    Some("alternative") => DC_MIMETYPE_MP_ALTERNATIVE,
                    Some("related") => DC_MIMETYPE_MP_RELATED,
                    Some("encrypted") => {
-                        // maybe try_decrypt failed to decrypt
-                        // or it wasn't in proper Autocrypt format
+                        // decryptable parts are already converted to other mime parts in dc_e2ee_decrypt()
                        DC_MIMETYPE_MP_NOT_DECRYPTABLE
                    }
                    Some("signed") => DC_MIMETYPE_MP_SIGNED,
@@ -1101,7 +1093,7 @@ fn reconcat_mime(typ: Option<&str>, subtype: Option<&str>) -> String {
    format!("{}/{}", typ, subtype)
 }

-unsafe fn mailmime_is_attachment_disposition(mime: *mut Mailmime) -> bool {
+unsafe fn mailmime_is_attachment_disposition(mime: *mut mailmime) -> bool {
    if (*mime).mm_mime_fields.is_null() {
        return false;
    }
@@ -1126,7 +1118,7 @@ unsafe fn mailmime_is_attachment_disposition(mime: *mut Mailmime) -> bool {

 /* low-level-tools for working with mailmime structures directly */
 pub unsafe fn mailmime_find_ct_parameter(
-    mime: *mut Mailmime,
+    mime: *mut mailmime,
    name: &str,
 ) -> *mut mailmime_parameter {
    if mime.is_null()
@@ -1148,7 +1140,7 @@ pub unsafe fn mailmime_find_ct_parameter(
    ptr::null_mut()
 }

-pub unsafe fn mailmime_transfer_decode(mime: *mut Mailmime) -> Result<Vec<u8>, Error> {
+pub unsafe fn mailmime_transfer_decode(mime: *mut mailmime) -> Result<Vec<u8>, Error> {
    ensure!(!mime.is_null(), "invalid inputs");

    let mut mime_transfer_encoding = MAILMIME_MECHANISM_BINARY as libc::c_int;
@@ -1211,61 +1203,50 @@ pub unsafe fn mailmime_transfer_decode(mime: *mut Mailmime) -> Result<Vec<u8>, E
    Err(format_err!("Failed to to decode"))
 }

-pub fn mailimf_get_recipients(imffields: *mut mailimf_fields) -> HashSet<String> {
+pub unsafe fn mailimf_get_recipients(imffields: *mut mailimf_fields) -> HashSet<String> {
    /* returned addresses are normalized. */
    let mut recipients: HashSet<String> = Default::default();

-    for cur in unsafe { (*(*imffields).fld_list).into_iter() } {
+    for cur in (*(*imffields).fld_list).into_iter() {
        let fld = cur as *mut mailimf_field;

        let fld_to: *mut mailimf_to;
        let fld_cc: *mut mailimf_cc;

        let mut addr_list: *mut mailimf_address_list = ptr::null_mut();
-        if fld.is_null() {
-            continue;
-        }
-
-        let fld = unsafe { *fld };
-
        // TODO match on enums /rtn
-        match fld.fld_type {
+        match (*fld).fld_type {
            13 => {
-                fld_to = unsafe { fld.fld_data.fld_to };
+                fld_to = (*fld).fld_data.fld_to;
                if !fld_to.is_null() {
-                    addr_list = unsafe { (*fld_to).to_addr_list };
+                    addr_list = (*fld_to).to_addr_list
                }
            }
            14 => {
-                fld_cc = unsafe { fld.fld_data.fld_cc };
+                fld_cc = (*fld).fld_data.fld_cc;
                if !fld_cc.is_null() {
-                    addr_list = unsafe { (*fld_cc).cc_addr_list };
+                    addr_list = (*fld_cc).cc_addr_list
                }
            }
            _ => {}
        }

        if !addr_list.is_null() {
-            for cur2 in unsafe { &(*(*addr_list).ad_list) } {
+            for cur2 in (*(*addr_list).ad_list).into_iter() {
                let adr = cur2 as *mut mailimf_address;

-                if adr.is_null() {
-                    continue;
-                }
-                let adr = unsafe { *adr };
-
-                if adr.ad_type == MAILIMF_ADDRESS_MAILBOX as libc::c_int {
-                    mailimf_get_recipients_add_addr(&mut recipients, unsafe {
-                        adr.ad_data.ad_mailbox
-                    });
-                } else if adr.ad_type == MAILIMF_ADDRESS_GROUP as libc::c_int {
-                    let group = unsafe { adr.ad_data.ad_group };
-                    if !group.is_null() && unsafe { !(*group).grp_mb_list.is_null() } {
-                        for cur3 in unsafe { &(*(*(*group).grp_mb_list).mb_list) } {
-                            mailimf_get_recipients_add_addr(
-                                &mut recipients,
-                                cur3 as *mut mailimf_mailbox,
-                            );
+                if !adr.is_null() {
+                    if (*adr).ad_type == MAILIMF_ADDRESS_MAILBOX as libc::c_int {
+                        mailimf_get_recipients_add_addr(&mut recipients, (*adr).ad_data.ad_mailbox);
+                    } else if (*adr).ad_type == MAILIMF_ADDRESS_GROUP as libc::c_int {
+                        let group: *mut mailimf_group = (*adr).ad_data.ad_group;
+                        if !group.is_null() && !(*group).grp_mb_list.is_null() {
+                            for cur3 in (*(*(*group).grp_mb_list).mb_list).into_iter() {
+                                mailimf_get_recipients_add_addr(
+                                    &mut recipients,
+                                    cur3 as *mut mailimf_mailbox,
+                                );
+                            }
                        }
                    }
                }
@@ -1284,33 +1265,37 @@ fn mailimf_get_recipients_add_addr(recipients: &mut HashSet<String>, mb: *mut ma
 }

 /*the result is a pointer to mime, must not be freed*/
-pub fn mailimf_find_field(
+pub unsafe fn mailimf_find_field(
    header: *mut mailimf_fields,
    wanted_fld_type: libc::c_int,
 ) -> *mut mailimf_field {
-    if header.is_null() {
+    if header.is_null() || (*header).fld_list.is_null() {
        return ptr::null_mut();
    }
-
-    let header = unsafe { (*header) };
-    if header.fld_list.is_null() {
-        return ptr::null_mut();
-    }
-
-    for cur in unsafe { &(*header.fld_list) } {
-        let field = cur as *mut mailimf_field;
+    let mut cur1: *mut clistiter = (*(*header).fld_list).first;
+    while !cur1.is_null() {
+        let field: *mut mailimf_field = (if !cur1.is_null() {
+            (*cur1).data
+        } else {
+            ptr::null_mut()
+        }) as *mut mailimf_field;
        if !field.is_null() {
-            if unsafe { (*field).fld_type } == wanted_fld_type {
+            if (*field).fld_type == wanted_fld_type {
                return field;
            }
        }
+        cur1 = if !cur1.is_null() {
+            (*cur1).next
+        } else {
+            ptr::null_mut()
+        }
    }

    ptr::null_mut()
 }

 /*the result is a pointer to mime, must not be freed*/
-pub unsafe fn mailmime_find_mailimf_fields(mime: *mut Mailmime) -> *mut mailimf_fields {
+pub unsafe fn mailmime_find_mailimf_fields(mime: *mut mailmime) -> *mut mailimf_fields {
    if mime.is_null() {
        return ptr::null_mut();
    }
@@ -1368,7 +1353,7 @@ mod tests {
        unsafe {
            let txt: *const libc::c_char =
                b"FieldA: ValueA\nFieldB: ValueB\n\x00" as *const u8 as *const libc::c_char;
-            let mut mime: *mut Mailmime = ptr::null_mut();
+            let mut mime: *mut mailmime = ptr::null_mut();
            let mut dummy = 0;
            let res = mailmime_parse(txt, strlen(txt), &mut dummy, &mut mime);

@@ -1441,7 +1426,7 @@ mod tests {
        let context = dummy_context();
        let raw = include_bytes!("../test-data/message/issue_523.txt");
        let mut mimeparser = MimeParser::new(&context.ctx);
-        unsafe { mimeparser.parse(&raw[..]).unwrap() };
+        unsafe { mimeparser.parse(&raw[..]) };
        assert_eq!(mimeparser.subject, None);
        assert_eq!(mimeparser.parts.len(), 1);
    }
@@ -1451,7 +1436,7 @@ mod tests {
        fn test_dc_mailmime_parse_crash_fuzzy(data in "[!-~\t ]{2000,}") {
            let context = dummy_context();
            let mut mimeparser = MimeParser::new(&context.ctx);
-            unsafe { mimeparser.parse(data.as_bytes()).unwrap() };
+            unsafe { mimeparser.parse(data.as_bytes()) };
        }
    }

@@ -1460,7 +1445,7 @@ mod tests {
        let context = dummy_context();
        let raw = include_bytes!("../test-data/message/mail_with_message_id.txt");
        let mut mimeparser = MimeParser::new(&context.ctx);
-        unsafe { mimeparser.parse(&raw[..]).unwrap() };
+        unsafe { mimeparser.parse(&raw[..]) };
        assert_eq!(
            mimeparser.get_rfc724_mid(),
            Some("2dfdbde7@example.org".into())
@@ -1472,7 +1457,7 @@ mod tests {
        let context = dummy_context();
        let raw = include_bytes!("../test-data/message/issue_523.txt");
        let mut mimeparser = MimeParser::new(&context.ctx);
-        unsafe { mimeparser.parse(&raw[..]).unwrap() };
+        unsafe { mimeparser.parse(&raw[..]) };
        assert_eq!(mimeparser.get_rfc724_mid(), None);
    }

@@ -1482,7 +1467,7 @@ mod tests {
            let context = dummy_context();
            let raw = b"Content-Type: multipart/mixed; boundary=\"==break==\";\nSubject: outer-subject\nX-Special-A: special-a\nFoo: Bar\nChat-Version: 0.0\n\n--==break==\nContent-Type: text/plain; protected-headers=\"v1\";\nSubject: inner-subject\nX-Special-B: special-b\nFoo: Xy\nChat-Version: 1.0\n\ntest1\n\n--==break==--\n\n\x00";
            let mut mimeparser = MimeParser::new(&context.ctx);
-            mimeparser.parse(&raw[..]).unwrap();
+            mimeparser.parse(&raw[..]);

            assert_eq!(mimeparser.subject, Some("inner-subject".into()));

--- a/src/dc_receive_imf.rs
+++ b/src/dc_receive_imf.rs
@@ -4,11 +4,11 @@ use std::ptr;
 use itertools::join;
 use libc::{free, strcmp, strlen};
 use mmime::clist::*;
-use mmime::mailimf::types::*;
 use mmime::mailimf::*;
-use mmime::mailmime::content::*;
-use mmime::mailmime::types::*;
+use mmime::mailimf_types::*;
 use mmime::mailmime::*;
+use mmime::mailmime_content::*;
+use mmime::mailmime_types::*;
 use mmime::other::*;
 use sha2::{Digest, Sha256};

@@ -39,7 +39,8 @@ enum CreateEvent {
 /// Receive a message and add it to the database.
 pub unsafe fn dc_receive_imf(
    context: &Context,
-    imf_raw: &[u8],
+    imf_raw_not_terminated: *const libc::c_char,
+    imf_raw_bytes: libc::size_t,
    server_folder: impl AsRef<str>,
    server_uid: u32,
    flags: u32,
@@ -60,10 +61,9 @@ pub unsafe fn dc_receive_imf(
    // we use mailmime_parse() through dc_mimeparser (both call mailimf_struct_multiple_parse()
    // somewhen, I did not found out anything that speaks against this approach yet)

+    let body = std::slice::from_raw_parts(imf_raw_not_terminated as *const u8, imf_raw_bytes);
    let mut mime_parser = MimeParser::new(context);
-    if let Err(err) = mime_parser.parse(imf_raw) {
-        error!(context, "dc_receive_imf parse error: {}", err);
-    };
+    mime_parser.parse(body);

    if mime_parser.header.is_empty() {
        // Error - even adding an empty record won't help as we do not know the message ID
@@ -204,7 +204,8 @@ pub unsafe fn dc_receive_imf(
        if let Err(err) = add_parts(
            context,
            &mut mime_parser,
-            imf_raw,
+            imf_raw_not_terminated,
+            imf_raw_bytes,
            incoming,
            &mut incoming_origin,
            server_folder.as_ref(),
@@ -291,7 +292,8 @@ pub unsafe fn dc_receive_imf(
 unsafe fn add_parts(
    context: &Context,
    mut mime_parser: &mut MimeParser,
-    imf_raw: &[u8],
+    imf_raw_not_terminated: *const libc::c_char,
+    imf_raw_bytes: libc::size_t,
    incoming: i32,
    incoming_origin: &mut Origin,
    server_folder: impl AsRef<str>,
@@ -610,7 +612,7 @@ unsafe fn add_parts(
    let icnt = mime_parser.parts.len();
    let mut txt_raw = None;

-    context
+    let is_ok = context
        .sql
        .prepare(
            "INSERT INTO msgs \
@@ -681,7 +683,10 @@ unsafe fn add_parts(
                        part.bytes,
                        *hidden,
                        if save_mime_headers {
-                            Some(String::from_utf8_lossy(imf_raw))
+                            Some(String::from_utf8_lossy(std::slice::from_raw_parts(
+                                imf_raw_not_terminated as *const u8,
+                                imf_raw_bytes,
+                            )))
                        } else {
                            None
                        },
@@ -697,10 +702,13 @@ unsafe fn add_parts(
                Ok(())
            },
        )
-        .map_err(|err| {
-            cleanup(mime_in_reply_to, mime_references);
-            err
-        })?;
+        .is_ok();
+
+    if !is_ok {
+        // i/o error - there is nothing more we can do - in other cases, we try to write at least an empty record
+        cleanup(mime_in_reply_to, mime_references);
+        bail!("Cannot write DB.");
+    }

    info!(
        context,
@@ -780,7 +788,7 @@ unsafe fn handle_reports(
                    .data
                } else {
                    ptr::null_mut()
-                }) as *mut Mailmime;
+                }) as *mut mailmime;

                if !report_data.is_null()
                    && (*(*(*report_data).mm_content_type).ct_type).tp_type
@@ -1147,15 +1155,21 @@ unsafe fn create_or_lookup_group(
    // check, if we have a chat with this group ID
    let (mut chat_id, chat_id_verified, _blocked) = chat::get_chat_id_by_grpid(context, &grpid);
    if chat_id != 0 {
-        if chat_id_verified {
-            if let Err(err) =
-                check_verified_properties(context, mime_parser, from_id as u32, to_ids)
-            {
-                warn!(context, "verification problem: {}", err);
-                let s = format!("{}. See 'Info' for more details", err);
-                mime_parser.repl_msg_by_error(s);
-            }
+        let mut failure_reason = std::ptr::null_mut();
+
+        if chat_id_verified
+            && 0 == check_verified_properties(
+                context,
+                mime_parser,
+                from_id as u32,
+                to_ids,
+                &mut failure_reason,
+            )
+        {
+            mime_parser.repl_msg_by_error(to_string(failure_reason));
        }
+
+        free(failure_reason.cast());
    }

    // check if the sender is a member of the existing group -
@@ -1184,14 +1198,18 @@ unsafe fn create_or_lookup_group(
        let mut create_verified = VerifiedStatus::Unverified;
        if mime_parser.lookup_field("Chat-Verified").is_some() {
            create_verified = VerifiedStatus::Verified;
+            let mut failure_reason = std::ptr::null_mut();

-            if let Err(err) =
-                check_verified_properties(context, mime_parser, from_id as u32, to_ids)
-            {
-                warn!(context, "verification problem: {}", err);
-                let s = format!("{}. See 'Info' for more details", err);
-                mime_parser.repl_msg_by_error(&s);
+            if 0 == check_verified_properties(
+                context,
+                mime_parser,
+                from_id as u32,
+                to_ids,
+                &mut failure_reason,
+            ) {
+                mime_parser.repl_msg_by_error(to_string(failure_reason));
            }
+            free(failure_reason.cast());
        }
        if 0 == allow_creation {
            cleanup(ret_chat_id, ret_chat_id_blocked, chat_id, chat_id_blocked);
@@ -1598,38 +1616,51 @@ fn search_chat_ids_by_contact_ids(context: &Context, unsorted_contact_ids: &Vec<
    chat_ids
 }

-fn check_verified_properties(
+unsafe fn check_verified_properties(
    context: &Context,
    mimeparser: &MimeParser,
    from_id: u32,
    to_ids: &Vec<u32>,
-) -> Result<()> {
-    let contact = Contact::load_from_db(context, from_id)?;
+    failure_reason: *mut *mut libc::c_char,
+) -> libc::c_int {
+    let verify_fail = |reason: String| {
+        *failure_reason = format!("{}. See \"Info\" for details.", reason).strdup();
+        warn!(context, "{}", reason);
+    };

-    ensure!(mimeparser.encrypted, "This message is not encrypted.");
+    let contact = match Contact::load_from_db(context, from_id) {
+        Ok(contact) => contact,
+        Err(_err) => {
+            verify_fail("Internal Error; cannot load contact".into());
+            return 0;
+        }
+    };
+
+    if !mimeparser.e2ee_helper.encrypted {
+        verify_fail("This message is not encrypted".into());
+        return 0;
+    }

    // ensure, the contact is verified
    // and the message is signed with a verified key of the sender.
    // this check is skipped for SELF as there is no proper SELF-peerstate
    // and results in group-splits otherwise.
-    if from_id != DC_CONTACT_ID_SELF {
+    if from_id != 1 {
        let peerstate = Peerstate::from_addr(context, &context.sql, contact.get_addr());

        if peerstate.is_none()
            || contact.is_verified_ex(context, peerstate.as_ref())
                != VerifiedStatus::BidirectVerified
        {
-            bail!(
-                "Sender of this message is not verified: {}",
-                contact.get_addr()
-            );
+            verify_fail("The sender of this message is not verified.".into());
+            return 0;
        }

        if let Some(peerstate) = peerstate {
-            ensure!(
-                peerstate.has_verified_key(&mimeparser.signatures),
-                "The message was sent with non-verified encryption."
-            );
+            if !peerstate.has_verified_key(&mimeparser.e2ee_helper.signatures) {
+                verify_fail("The message was sent with non-verified encryption.".into());
+                return 0;
+            }
        }
    }

@@ -1642,19 +1673,19 @@ fn check_verified_properties(
            to_ids_str,
        ),
        params![],
-        |row| Ok((row.get::<_, String>(0)?, row.get::<_, i32>(1).unwrap_or(0))),
+        |row| Ok((row.get::<_, String>(0)?, row.get::<_, i32>(1)?)),
        |rows| {
            rows.collect::<std::result::Result<Vec<_>, _>>()
                .map_err(Into::into)
        },
-    )?;
+    );

-    for (to_addr, _is_verified) in rows.into_iter() {
-        let mut is_verified = _is_verified != 0;
+    if rows.is_err() {
+        return 0;
+    }
+    for (to_addr, mut is_verified) in rows.unwrap().into_iter() {
        let mut peerstate = Peerstate::from_addr(context, &context.sql, &to_addr);
-
-        // mark gossiped keys (if any) as verified
-        if mimeparser.gossipped_addr.contains(&to_addr) && peerstate.is_some() {
+        if mimeparser.e2ee_helper.gossipped_addr.contains(&to_addr) && peerstate.is_some() {
            let peerstate = peerstate.as_mut().unwrap();

            // if we're here, we know the gossip key is verified:
@@ -1662,27 +1693,29 @@ fn check_verified_properties(
            // - OR if the verified-key does not match public-key or gossip-key
            //   (otherwise a verified key can _only_ be updated through QR scan which might be annoying,
            //   see https://github.com/nextleap-project/countermitm/issues/46 for a discussion about this point)
-            if !is_verified
+            if 0 == is_verified
                || peerstate.verified_key_fingerprint != peerstate.public_key_fingerprint
                    && peerstate.verified_key_fingerprint != peerstate.gossip_key_fingerprint
            {
-                info!(context, "{} has verified {}.", contact.get_addr(), to_addr,);
+                info!(context, "{} has verfied {}.", contact.get_addr(), to_addr,);
                let fp = peerstate.gossip_key_fingerprint.clone();
                if let Some(fp) = fp {
                    peerstate.set_verified(0, &fp, 2);
-                    peerstate.save_to_db(&context.sql, false).unwrap();
-                    is_verified = true;
+                    peerstate.save_to_db(&context.sql, false);
+                    is_verified = 1;
                }
            }
        }
-        if !is_verified {
-            bail!(
+        if 0 == is_verified {
+            verify_fail(format!(
                "{} is not a member of this verified group",
-                to_addr.to_string()
-            );
+                to_addr
+            ));
+            return 0;
        }
    }
-    Ok(())
+
+    1
 }

 fn set_better_msg(mime_parser: &mut MimeParser, better_msg: impl AsRef<str>) {
--- a/src/dc_strencode.rs
+++ b/src/dc_strencode.rs
@@ -1,11 +1,11 @@
-use itertools::Itertools;
 use std::borrow::Cow;
 use std::ffi::CString;
 use std::ptr;

 use charset::Charset;
 use libc::{free, strlen};
-use mmime::mailmime::decode::mailmime_encoded_phrase_parse;
+use mmime::mailmime_decode::*;
+use mmime::mmapstring::*;
 use mmime::other::*;
 use percent_encoding::{percent_decode, utf8_percent_encode, AsciiSet, CONTROLS};

@@ -25,49 +25,195 @@ use crate::dc_tools::*;
 * @return Returns the encoded string which must be free()'d when no longed needed.
 *     On errors, NULL is returned.
 */
-pub fn dc_encode_header_words(input: impl AsRef<str>) -> String {
-    let mut result = String::default();
-    for (_, group) in &input.as_ref().chars().group_by(|c| c.is_whitespace()) {
-        let word: String = group.collect();
-        result.push_str(&quote_word(&word.as_bytes()));
+pub unsafe fn dc_encode_header_words(to_encode_r: impl AsRef<str>) -> String {
+    let to_encode =
+        CString::new(to_encode_r.as_ref().as_bytes()).expect("invalid cstring to_encode");
+
+    let mut ok_to_continue = true;
+    let mut ret_str: *mut libc::c_char = ptr::null_mut();
+    let mut cur: *const libc::c_char = to_encode.as_ptr();
+    let mmapstr: *mut MMAPString = mmap_string_new(b"\x00" as *const u8 as *const libc::c_char);
+    if mmapstr.is_null() {
+        ok_to_continue = false;
    }
-
-    result
-}
-
-fn must_encode(byte: u8) -> bool {
-    static SPECIALS: &[u8] = b",:!\"#$@[\\]^`{|}~=?_";
-
-    SPECIALS.into_iter().any(|b| *b == byte)
-}
-
-fn quote_word(word: &[u8]) -> String {
-    let mut result = String::default();
-    let mut encoded = false;
-
-    for byte in word {
-        let byte = *byte;
-        if byte >= 128 || must_encode(byte) {
-            result.push_str(&format!("={:2X}", byte));
-            encoded = true;
-        } else if byte == b' ' {
-            result.push('_');
-            encoded = true;
+    loop {
+        if !ok_to_continue {
+            if !mmapstr.is_null() {
+                mmap_string_free(mmapstr);
+            }
+            break;
        } else {
-            result.push(byte as _);
+            if *cur as libc::c_int != '\u{0}' as i32 {
+                let begin: *const libc::c_char;
+                let mut end: *const libc::c_char;
+                let mut do_quote: bool;
+                let mut quote_words: libc::c_int;
+                begin = cur;
+                end = begin;
+                quote_words = 0i32;
+                do_quote = true;
+                while *cur as libc::c_int != '\u{0}' as i32 {
+                    get_word(cur, &mut cur, &mut do_quote);
+                    if !do_quote {
+                        break;
+                    }
+                    quote_words = 1i32;
+                    end = cur;
+                    if *cur as libc::c_int != '\u{0}' as i32 {
+                        cur = cur.offset(1isize)
+                    }
+                }
+                if 0 != quote_words {
+                    if !quote_word(
+                        mmapstr,
+                        begin,
+                        end.wrapping_offset_from(begin) as libc::size_t,
+                    ) {
+                        ok_to_continue = false;
+                        continue;
+                    }
+                    if *end as libc::c_int == ' ' as i32 || *end as libc::c_int == '\t' as i32 {
+                        if mmap_string_append_c(mmapstr, *end).is_null() {
+                            ok_to_continue = false;
+                            continue;
+                        }
+                        end = end.offset(1isize)
+                    }
+                    if *end as libc::c_int != '\u{0}' as i32 {
+                        if mmap_string_append_len(
+                            mmapstr,
+                            end,
+                            cur.wrapping_offset_from(end) as libc::size_t,
+                        )
+                        .is_null()
+                        {
+                            ok_to_continue = false;
+                            continue;
+                        }
+                    }
+                } else if mmap_string_append_len(
+                    mmapstr,
+                    begin,
+                    cur.wrapping_offset_from(begin) as libc::size_t,
+                )
+                .is_null()
+                {
+                    ok_to_continue = false;
+                    continue;
+                }
+                if !(*cur as libc::c_int == ' ' as i32 || *cur as libc::c_int == '\t' as i32) {
+                    continue;
+                }
+                if mmap_string_append_c(mmapstr, *cur).is_null() {
+                    ok_to_continue = false;
+                    continue;
+                }
+                cur = cur.offset(1isize);
+            } else {
+                ret_str = strdup((*mmapstr).str_0);
+                ok_to_continue = false;
+            }
        }
    }

-    if encoded {
-        result = format!("=?utf-8?Q?{}?=", &result);
+    let s = to_string(ret_str);
+    free(ret_str.cast());
+    s
+}
+
+unsafe fn quote_word(
+    mmapstr: *mut MMAPString,
+    word: *const libc::c_char,
+    size: libc::size_t,
+) -> bool {
+    let mut cur: *const libc::c_char;
+    let mut i = 0;
+    let mut hex: [libc::c_char; 4] = [0; 4];
+    // let mut col: libc::c_int = 0i32;
+    if mmap_string_append(mmapstr, b"=?utf-8?Q?\x00".as_ptr().cast()).is_null() {
+        return false;
    }
-    result
+
+    // col = (*mmapstr).len as libc::c_int;
+    cur = word;
+    while i < size {
+        let mut do_quote_char = false;
+        match *cur as u8 as char {
+            ',' | ':' | '!' | '"' | '#' | '$' | '@' | '[' | '\\' | ']' | '^' | '`' | '{' | '|'
+            | '}' | '~' | '=' | '?' | '_' => do_quote_char = true,
+            _ => {
+                if *cur as u8 >= 128 {
+                    do_quote_char = true;
+                }
+            }
+        }
+        if do_quote_char {
+            print_hex(hex.as_mut_ptr(), cur);
+            if mmap_string_append(mmapstr, hex.as_mut_ptr()).is_null() {
+                return false;
+            }
+        // col += 3i32
+        } else {
+            if *cur as libc::c_int == ' ' as i32 {
+                if mmap_string_append_c(mmapstr, '_' as i32 as libc::c_char).is_null() {
+                    return false;
+                }
+            } else if mmap_string_append_c(mmapstr, *cur).is_null() {
+                return false;
+            }
+            // col += 3i32
+        }
+        cur = cur.offset(1isize);
+        i = i.wrapping_add(1)
+    }
+    if mmap_string_append(mmapstr, b"?=\x00" as *const u8 as *const libc::c_char).is_null() {
+        return false;
+    }
+
+    true
+}
+
+unsafe fn get_word(
+    begin: *const libc::c_char,
+    pend: *mut *const libc::c_char,
+    pto_be_quoted: *mut bool,
+) {
+    let mut cur: *const libc::c_char = begin;
+    while *cur as libc::c_int != ' ' as i32
+        && *cur as libc::c_int != '\t' as i32
+        && *cur as libc::c_int != '\u{0}' as i32
+    {
+        cur = cur.offset(1isize)
+    }
+    *pto_be_quoted = to_be_quoted(begin, cur.wrapping_offset_from(begin) as libc::size_t);
+    *pend = cur;
 }

 /* ******************************************************************************
 * Encode/decode header words, RFC 2047
 ******************************************************************************/

+/* see comment below */
+unsafe fn to_be_quoted(word: *const libc::c_char, size: libc::size_t) -> bool {
+    let mut cur: *const libc::c_char = word;
+    let mut i = 0;
+    while i < size {
+        match *cur as libc::c_int {
+            44 | 58 | 33 | 34 | 35 | 36 | 64 | 91 | 92 | 93 | 94 | 96 | 123 | 124 | 125 | 126
+            | 61 | 63 | 95 => return true,
+            _ => {
+                if *cur as libc::c_uchar as libc::c_int >= 128i32 {
+                    return true;
+                }
+            }
+        }
+        cur = cur.offset(1isize);
+        i = i.wrapping_add(1)
+    }
+
+    false
+}
+
 pub unsafe fn dc_decode_header_words(in_0: *const libc::c_char) -> *mut libc::c_char {
    if in_0.is_null() {
        return ptr::null_mut();
@@ -173,6 +319,15 @@ pub fn dc_decode_ext_header(to_decode: &[u8]) -> Cow<str> {
    String::from_utf8_lossy(to_decode)
 }

+unsafe fn print_hex(target: *mut libc::c_char, cur: *const libc::c_char) {
+    assert!(!target.is_null());
+    assert!(!cur.is_null());
+
+    let bytes = std::slice::from_raw_parts(cur as *const _, strlen(cur));
+    let raw = CString::yolo(format!("={}", &hex::encode_upper(bytes)[..2]));
+    libc::memcpy(target as *mut _, raw.as_ptr() as *const _, 4);
+}
+
 #[cfg(test)]
 mod tests {
    use super::*;
@@ -274,6 +429,18 @@ mod tests {
        assert_eq!(dc_needs_ext_header("a b"), true);
    }

+    #[test]
+    fn test_print_hex() {
+        let mut hex: [libc::c_char; 4] = [0; 4];
+        let cur = b"helloworld" as *const u8 as *const libc::c_char;
+        unsafe { print_hex(hex.as_mut_ptr(), cur) };
+        assert_eq!(to_string(hex.as_ptr() as *const _), "=68");
+
+        let cur = b":" as *const u8 as *const libc::c_char;
+        unsafe { print_hex(hex.as_mut_ptr(), cur) };
+        assert_eq!(to_string(hex.as_ptr() as *const _), "=3A");
+    }
+
    use proptest::prelude::*;

    proptest! {
@@ -289,13 +456,5 @@ mod tests {
            // make sure this never panics
            let _decoded = dc_decode_ext_header(&buf);
        }
-
-        #[test]
-        fn test_dc_header_roundtrip(input: String) {
-            let encoded = dc_encode_header_words(&input);
-            let decoded = dc_decode_header_words_safe(&encoded);
-
-            assert_eq!(input, decoded);
-        }
    }
 }
--- a/src/dc_tools.rs
+++ b/src/dc_tools.rs
@@ -9,9 +9,9 @@ use std::time::SystemTime;
 use std::{fmt, fs, ptr};

 use chrono::{Local, TimeZone};
-use libc::{memcpy, strlen};
+use libc::{memcpy, strcpy, strlen, uintptr_t};
 use mmime::clist::*;
-use mmime::mailimf::types::*;
+use mmime::mailimf_types::*;
 use rand::{thread_rng, Rng};

 use crate::context::Context;
@@ -149,6 +149,66 @@ pub(crate) fn dc_truncate(buf: &str, approx_chars: usize, do_unwrap: bool) -> Co
    }
 }

+#[allow(non_snake_case)]
+pub(crate) unsafe fn dc_truncate_n_unwrap_str(
+    buf: *mut libc::c_char,
+    approx_characters: libc::c_int,
+    do_unwrap: libc::c_int,
+) {
+    /* Function unwraps the given string and removes unnecessary whitespace.
+    Function stops processing after approx_characters are processed.
+    (as we're using UTF-8, for simplicity, we cut the string only at whitespaces). */
+    /* a single line is truncated `...` instead of `[...]` (the former is typically also used by the UI to fit strings in a rectangle) */
+    let ellipse_utf8: *const libc::c_char = if 0 != do_unwrap {
+        b" ...\x00" as *const u8 as *const libc::c_char
+    } else {
+        b" [...]\x00" as *const u8 as *const libc::c_char
+    };
+    let mut lastIsCharacter: libc::c_int = 0;
+    /* force unsigned - otherwise the `> ' '` comparison will fail */
+    let mut p1: *mut libc::c_uchar = buf as *mut libc::c_uchar;
+    while 0 != *p1 {
+        if *p1 as libc::c_int > ' ' as i32 {
+            lastIsCharacter = 1
+        } else if 0 != lastIsCharacter {
+            let used_bytes = (p1 as uintptr_t).wrapping_sub(buf as uintptr_t) as libc::size_t;
+            if dc_utf8_strnlen(buf, used_bytes) >= approx_characters as usize {
+                let buf_bytes = strlen(buf);
+                if buf_bytes.wrapping_sub(used_bytes) >= strlen(ellipse_utf8) {
+                    strcpy(p1 as *mut libc::c_char, ellipse_utf8);
+                }
+                break;
+            } else {
+                lastIsCharacter = 0;
+                if 0 != do_unwrap {
+                    *p1 = ' ' as i32 as libc::c_uchar
+                }
+            }
+        } else if 0 != do_unwrap {
+            *p1 = '\r' as i32 as libc::c_uchar
+        }
+        p1 = p1.offset(1isize)
+    }
+    if 0 != do_unwrap {
+        dc_remove_cr_chars(buf);
+    };
+}
+
+unsafe fn dc_utf8_strnlen(s: *const libc::c_char, n: libc::size_t) -> libc::size_t {
+    if s.is_null() {
+        return 0;
+    }
+
+    let mut j: libc::size_t = 0;
+    for i in 0..n {
+        if *s.add(i) as libc::c_int & 0xc0 != 0x80 {
+            j = j.wrapping_add(1)
+        }
+    }
+
+    j
+}
+
 pub(crate) unsafe fn dc_str_from_clist(
    list: *const clist,
    delimiter: *const libc::c_char,
@@ -217,26 +277,26 @@ pub(crate) fn dc_str_to_color(s: impl AsRef<str>) -> u32 {

 /* date/time tools */
 /* the result is UTC or DC_INVALID_TIMESTAMP */
-pub(crate) fn dc_timestamp_from_date(date_time: *mut mailimf_date_time) -> i64 {
-    assert!(!date_time.is_null());
-    let dt = unsafe { *date_time };
-
-    let sec = dt.dt_sec;
-    let min = dt.dt_min;
-    let hour = dt.dt_hour;
-    let day = dt.dt_day;
-    let month = dt.dt_month;
-    let year = dt.dt_year;
+pub(crate) unsafe fn dc_timestamp_from_date(date_time: *mut mailimf_date_time) -> i64 {
+    let sec = (*date_time).dt_sec;
+    let min = (*date_time).dt_min;
+    let hour = (*date_time).dt_hour;
+    let day = (*date_time).dt_day;
+    let month = (*date_time).dt_month;
+    let year = (*date_time).dt_year;

    let ts = chrono::NaiveDateTime::new(
        chrono::NaiveDate::from_ymd(year, month as u32, day as u32),
        chrono::NaiveTime::from_hms(hour as u32, min as u32, sec as u32),
    );

-    let (zone_hour, zone_min) = if dt.dt_zone >= 0 {
-        (dt.dt_zone / 100, dt.dt_zone % 100)
+    let (zone_hour, zone_min) = if (*date_time).dt_zone >= 0 {
+        ((*date_time).dt_zone / 100, (*date_time).dt_zone % 100)
    } else {
-        (-(-dt.dt_zone / 100), -(-dt.dt_zone % 100))
+        (
+            -(-(*date_time).dt_zone / 100),
+            -(-(*date_time).dt_zone % 100),
+        )
    };

    ts.timestamp() - (zone_hour * 3600 + zone_min * 60) as i64
@@ -470,13 +530,10 @@ pub(crate) fn dc_get_filebytes(context: &Context, path: impl AsRef<std::path::Pa

 pub(crate) fn dc_delete_file(context: &Context, path: impl AsRef<std::path::Path>) -> bool {
    let path_abs = dc_get_abs_path(context, &path);
-    if !path_abs.exists() {
-        return false;
-    }
    if !path_abs.is_file() {
        warn!(
            context,
-            "refusing to delete non-file \"{}\".",
+            "Will not delete directory \"{}\".",
            path.as_ref().display()
        );
        return false;
@@ -1442,7 +1499,6 @@ mod tests {
        let t = dummy_context();
        let context = &t.ctx;

-        assert!(!dc_delete_file(context, "$BLOBDIR/lkqwjelqkwlje"));
        if dc_file_exist(context, "$BLOBDIR/foobar")
            || dc_file_exist(context, "$BLOBDIR/dada")
            || dc_file_exist(context, "$BLOBDIR/foobar.dadada")
@@ -1465,7 +1521,6 @@ mod tests {
            .to_string();

        assert!(dc_is_blobdir_path(context, &abs_path));
-
        assert!(dc_is_blobdir_path(context, "$BLOBDIR/fofo",));
        assert!(!dc_is_blobdir_path(context, "/BLOBDIR/fofo",));
        assert!(dc_file_exist(context, &abs_path));
--- a/src/e2ee.rs
+++ b/src/e2ee.rs
--- a/src/error.rs
+++ b/src/error.rs
@@ -26,10 +26,6 @@ pub enum Error {
    CStringError(crate::dc_tools::CStringError),
    #[fail(display = "PGP: {:?}", _0)]
    Pgp(pgp::errors::Error),
-    #[fail(display = "Base64Decode: {:?}", _0)]
-    Base64Decode(base64::DecodeError),
-    #[fail(display = "{:?}", _0)]
-    FromUtf8(std::string::FromUtf8Error),
 }

 pub type Result<T> = std::result::Result<T, Error>;
@@ -40,12 +36,6 @@ impl From<rusqlite::Error> for Error {
    }
 }

-impl From<base64::DecodeError> for Error {
-    fn from(err: base64::DecodeError) -> Error {
-        Error::Base64Decode(err)
-    }
-}
-
 impl From<failure::Error> for Error {
    fn from(err: failure::Error) -> Error {
        Error::Failure(err)
@@ -70,12 +60,6 @@ impl From<std::str::Utf8Error> for Error {
    }
 }

-impl From<std::string::FromUtf8Error> for Error {
-    fn from(err: std::string::FromUtf8Error) -> Error {
-        Error::FromUtf8(err)
-    }
-}
-
 impl From<image_meta::ImageError> for Error {
    fn from(err: image_meta::ImageError) -> Error {
        Error::Image(err)
--- a/src/events.rs
+++ b/src/events.rs
@@ -167,7 +167,7 @@ pub enum Event {
    #[strum(props(id = "2041"))]
    ConfigureProgress(usize),

-    /// Inform about the import/export progress started by imex().
+    /// Inform about the import/export progress started by dc_imex().
    ///
    /// @param data1 (usize) 0=error, 1-999=progress in permille, 1000=success and done
    /// @param data2 0
@@ -175,8 +175,8 @@ pub enum Event {
    #[strum(props(id = "2051"))]
    ImexProgress(usize),

-    /// A file has been exported. A file has been written by imex().
-    /// This event may be sent multiple times by a single call to imex().
+    /// A file has been exported. A file has been written by dc_imex().
+    /// This event may be sent multiple times by a single call to dc_imex().
    ///
    /// A typical purpose for a handler of this event may be to make the file public to some system
    /// services.
--- a/src/imap.rs
+++ b/src/imap.rs
@@ -110,8 +110,6 @@ impl Client {
    ) -> imap::error::Result<Self> {
        let stream = net::TcpStream::connect(addr)?;
        let tls = native_tls::TlsConnector::builder()
-            // see also: https://github.com/deltachat/deltachat-core-rust/issues/203
-            .danger_accept_invalid_certs(true)
            .danger_accept_invalid_hostnames(true)
            .build()
            .unwrap();
@@ -955,7 +953,14 @@ impl Imap {
            if !is_deleted && msg.body().is_some() {
                let body = msg.body().unwrap();
                unsafe {
-                    dc_receive_imf(context, &body, folder.as_ref(), server_uid, flags as u32);
+                    dc_receive_imf(
+                        context,
+                        body.as_ptr() as *const libc::c_char,
+                        body.len(),
+                        folder.as_ref(),
+                        server_uid,
+                        flags as u32,
+                    );
                }
            }
        }
--- a/src/job.rs
+++ b/src/job.rs
@@ -7,14 +7,14 @@ use crate::chat;
 use crate::configure::*;
 use crate::constants::*;
 use crate::context::Context;
+use crate::dc_imex::*;
 use crate::dc_tools::*;
 use crate::events::Event;
 use crate::imap::*;
-use crate::imex::*;
 use crate::location;
 use crate::login_param::LoginParam;
 use crate::message::{self, Message, MessageState};
-use crate::mimefactory::{vec_contains_lowercase, Loaded, MimeFactory};
+use crate::mimefactory::*;
 use crate::param::*;
 use crate::sql;

@@ -206,49 +206,57 @@ impl Job {

    #[allow(non_snake_case)]
    fn do_DC_JOB_MOVE_MSG(&mut self, context: &Context) {
+        let ok_to_continue;
+        let mut dest_uid = 0;
+
        let inbox = context.inbox.read().unwrap();

        if !inbox.is_connected() {
            connect_to_inbox(context, &inbox);
            if !inbox.is_connected() {
                self.try_again_later(3, None);
-                return;
+                ok_to_continue = false;
+            } else {
+                ok_to_continue = true;
            }
+        } else {
+            ok_to_continue = true;
        }
-        if let Ok(msg) = Message::load_from_db(context, self.foreign_id) {
-            if context
-                .sql
-                .get_config_int(context, "folders_configured")
-                .unwrap_or_default()
-                < 3
-            {
-                inbox.configure_folders(context, 0x1i32);
-            }
-            let dest_folder = context.sql.get_config(context, "configured_mvbox_folder");
+        if ok_to_continue {
+            if let Ok(msg) = Message::load_from_db(context, self.foreign_id) {
+                if context
+                    .sql
+                    .get_config_int(context, "folders_configured")
+                    .unwrap_or_default()
+                    < 3
+                {
+                    inbox.configure_folders(context, 0x1i32);
+                }
+                let dest_folder = context.sql.get_config(context, "configured_mvbox_folder");

-            if let Some(dest_folder) = dest_folder {
-                let server_folder = msg.server_folder.as_ref().unwrap();
-                let mut dest_uid = 0;
+                if let Some(dest_folder) = dest_folder {
+                    let server_folder = msg.server_folder.as_ref().unwrap();

-                match inbox.mv(
-                    context,
-                    server_folder,
-                    msg.server_uid,
-                    &dest_folder,
-                    &mut dest_uid,
-                ) {
-                    ImapResult::RetryLater => {
-                        self.try_again_later(3i32, None);
+                    match inbox.mv(
+                        context,
+                        server_folder,
+                        msg.server_uid,
+                        &dest_folder,
+                        &mut dest_uid,
+                    ) {
+                        ImapResult::RetryLater => {
+                            self.try_again_later(3i32, None);
+                        }
+                        ImapResult::Success => {
+                            message::update_server_uid(
+                                context,
+                                &msg.rfc724_mid,
+                                &dest_folder,
+                                dest_uid,
+                            );
+                        }
+                        ImapResult::Failed | ImapResult::AlreadyDone => {}
                    }
-                    ImapResult::Success => {
-                        message::update_server_uid(
-                            context,
-                            &msg.rfc724_mid,
-                            &dest_folder,
-                            dest_uid,
-                        );
-                    }
-                    ImapResult::Failed | ImapResult::AlreadyDone => {}
                }
            }
        }
@@ -256,75 +264,99 @@ impl Job {

    #[allow(non_snake_case)]
    fn do_DC_JOB_DELETE_MSG_ON_IMAP(&mut self, context: &Context) {
+        let mut delete_from_server = 1;
        let inbox = context.inbox.read().unwrap();

        if let Ok(mut msg) = Message::load_from_db(context, self.foreign_id) {
            if !msg.rfc724_mid.is_empty() {
+                let ok_to_continue1;
                /* eg. device messages have no Message-ID */
-                let mut delete_from_server = true;
                if message::rfc724_mid_cnt(context, &msg.rfc724_mid) != 1 {
                    info!(
                        context,
                        "The message is deleted from the server when all parts are deleted.",
                    );
-                    delete_from_server = false;
+                    delete_from_server = 0i32
                }
                /* if this is the last existing part of the message, we delete the message from the server */
-                if delete_from_server {
+                if 0 != delete_from_server {
+                    let ok_to_continue;
                    if !inbox.is_connected() {
                        connect_to_inbox(context, &inbox);
                        if !inbox.is_connected() {
                            self.try_again_later(3i32, None);
-                            return;
+                            ok_to_continue = false;
+                        } else {
+                            ok_to_continue = true;
                        }
+                    } else {
+                        ok_to_continue = true;
                    }
-                    let mid = msg.rfc724_mid;
-                    let server_folder = msg.server_folder.as_ref().unwrap();
-                    if 0 == inbox.delete_msg(context, &mid, server_folder, &mut msg.server_uid) {
-                        self.try_again_later(-1i32, None);
-                        return;
+                    if ok_to_continue {
+                        let mid = msg.rfc724_mid;
+                        let server_folder = msg.server_folder.as_ref().unwrap();
+                        if 0 == inbox.delete_msg(context, &mid, server_folder, &mut msg.server_uid)
+                        {
+                            self.try_again_later(-1i32, None);
+                            ok_to_continue1 = false;
+                        } else {
+                            ok_to_continue1 = true;
+                        }
+                    } else {
+                        ok_to_continue1 = false;
                    }
+                } else {
+                    ok_to_continue1 = true;
+                }
+                if ok_to_continue1 {
+                    Message::delete_from_db(context, msg.id);
                }
-                Message::delete_from_db(context, msg.id);
            }
        }
    }

    #[allow(non_snake_case)]
    fn do_DC_JOB_MARKSEEN_MSG_ON_IMAP(&mut self, context: &Context) {
+        let ok_to_continue;
        let inbox = context.inbox.read().unwrap();

        if !inbox.is_connected() {
            connect_to_inbox(context, &inbox);
            if !inbox.is_connected() {
                self.try_again_later(3i32, None);
-                return;
+                ok_to_continue = false;
+            } else {
+                ok_to_continue = true;
            }
+        } else {
+            ok_to_continue = true;
        }
-        if let Ok(msg) = Message::load_from_db(context, self.foreign_id) {
-            let server_folder = msg.server_folder.as_ref().unwrap();
-            match inbox.set_seen(context, server_folder, msg.server_uid) {
-                ImapResult::Failed => {}
-                ImapResult::RetryLater => {
-                    self.try_again_later(3i32, None);
-                }
-                _ => {
-                    if 0 != msg.param.get_int(Param::WantsMdn).unwrap_or_default()
-                        && 0 != context
-                            .sql
-                            .get_config_int(context, "mdns_enabled")
-                            .unwrap_or_else(|| 1)
-                    {
-                        let folder = msg.server_folder.as_ref().unwrap();
+        if ok_to_continue {
+            if let Ok(msg) = Message::load_from_db(context, self.foreign_id) {
+                let server_folder = msg.server_folder.as_ref().unwrap();
+                match inbox.set_seen(context, server_folder, msg.server_uid) {
+                    ImapResult::Failed => {}
+                    ImapResult::RetryLater => {
+                        self.try_again_later(3i32, None);
+                    }
+                    _ => {
+                        if 0 != msg.param.get_int(Param::WantsMdn).unwrap_or_default()
+                            && 0 != context
+                                .sql
+                                .get_config_int(context, "mdns_enabled")
+                                .unwrap_or_else(|| 1)
+                        {
+                            let folder = msg.server_folder.as_ref().unwrap();

-                        match inbox.set_mdnsent(context, folder, msg.server_uid) {
-                            ImapResult::RetryLater => {
-                                self.try_again_later(3i32, None);
+                            match inbox.set_mdnsent(context, folder, msg.server_uid) {
+                                ImapResult::RetryLater => {
+                                    self.try_again_later(3i32, None);
+                                }
+                                ImapResult::Success => {
+                                    send_mdn(context, msg.id);
+                                }
+                                ImapResult::Failed | ImapResult::AlreadyDone => {}
                            }
-                            ImapResult::Success => {
-                                send_mdn(context, msg.id);
-                            }
-                            ImapResult::Failed | ImapResult::AlreadyDone => {}
                        }
                    }
                }
@@ -334,40 +366,47 @@ impl Job {

    #[allow(non_snake_case)]
    fn do_DC_JOB_MARKSEEN_MDN_ON_IMAP(&mut self, context: &Context) {
+        let ok_to_continue;
        let folder = self
            .param
            .get(Param::ServerFolder)
            .unwrap_or_default()
            .to_string();
        let uid = self.param.get_int(Param::ServerUid).unwrap_or_default() as u32;
+        let mut dest_uid = 0;
        let inbox = context.inbox.read().unwrap();

        if !inbox.is_connected() {
            connect_to_inbox(context, &inbox);
            if !inbox.is_connected() {
                self.try_again_later(3, None);
-                return;
+                ok_to_continue = false;
+            } else {
+                ok_to_continue = true;
            }
+        } else {
+            ok_to_continue = true;
        }
-        if inbox.set_seen(context, &folder, uid) == ImapResult::Failed {
-            self.try_again_later(3i32, None);
-        }
-        if 0 != self.param.get_int(Param::AlsoMove).unwrap_or_default() {
-            if context
-                .sql
-                .get_config_int(context, "folders_configured")
-                .unwrap_or_default()
-                < 3
-            {
-                inbox.configure_folders(context, 0x1i32);
+        if ok_to_continue {
+            if inbox.set_seen(context, &folder, uid) == ImapResult::Failed {
+                self.try_again_later(3i32, None);
            }
-            let dest_folder = context.sql.get_config(context, "configured_mvbox_folder");
-            if let Some(dest_folder) = dest_folder {
-                let mut dest_uid = 0;
-                if ImapResult::RetryLater
-                    == inbox.mv(context, folder, uid, dest_folder, &mut dest_uid)
+            if 0 != self.param.get_int(Param::AlsoMove).unwrap_or_default() {
+                if context
+                    .sql
+                    .get_config_int(context, "folders_configured")
+                    .unwrap_or_default()
+                    < 3
                {
-                    self.try_again_later(3, None);
+                    inbox.configure_folders(context, 0x1i32);
+                }
+                let dest_folder = context.sql.get_config(context, "configured_mvbox_folder");
+                if let Some(dest_folder) = dest_folder {
+                    if ImapResult::RetryLater
+                        == inbox.mv(context, folder, uid, dest_folder, &mut dest_uid)
+                    {
+                        self.try_again_later(3, None);
+                    }
                }
            }
        }
@@ -824,12 +863,7 @@ fn job_perform(context: &Context, thread: Thread, probe_network: bool) {
                Action::MoveMsg => job.do_DC_JOB_MOVE_MSG(context),
                Action::SendMdn => job.do_DC_JOB_SEND(context),
                Action::ConfigureImap => unsafe { dc_job_do_DC_JOB_CONFIGURE_IMAP(context) },
-                Action::ImexImap => match job_do_DC_JOB_IMEX_IMAP(context, &job) {
-                    Ok(()) => {}
-                    Err(err) => {
-                        error!(context, "{}", err);
-                    }
-                },
+                Action::ImexImap => unsafe { dc_job_do_DC_JOB_IMEX_IMAP(context, &job) },
                Action::MaybeSendLocations => {
                    location::job_do_DC_JOB_MAYBE_SEND_LOCATIONS(context, &job)
                }
--- a/src/key.rs
+++ b/src/key.rs
@@ -2,6 +2,7 @@ use std::collections::BTreeMap;
 use std::io::Cursor;
 use std::path::Path;

+use libc;
 use pgp::composed::{Deserializable, SignedPublicKey, SignedSecretKey};
 use pgp::ser::Serialize;
 use pgp::types::{KeyTrait, SecretKeyTrait};
@@ -253,14 +254,14 @@ pub fn dc_key_save_self_keypair(
    public_key: &Key,
    private_key: &Key,
    addr: impl AsRef<str>,
-    is_default: bool,
+    is_default: libc::c_int,
    sql: &Sql,
 ) -> bool {
    sql::execute(
        context,
        sql,
        "INSERT INTO keypairs (addr, is_default, public_key, private_key, created) VALUES (?,?,?,?,?);",
-        params![addr.as_ref(), is_default as i32, public_key.to_bytes(), private_key.to_bytes(), time()],
+        params![addr.as_ref(), is_default, public_key.to_bytes(), private_key.to_bytes(), time()],
    ).is_ok()
 }

--- a/src/lib.rs
+++ b/src/lib.rs
@@ -39,36 +39,36 @@ pub mod contact;
 pub mod context;
 mod e2ee;
 mod imap;
-pub mod imex;
 pub mod job;
 mod job_thread;
 pub mod key;
 pub mod keyring;
 pub mod location;
-mod login_param;
 pub mod lot;
 pub mod message;
-mod mimefactory;
 pub mod oauth2;
 mod param;
 pub mod peerstate;
 pub mod pgp;
 pub mod qr;
-pub mod securejoin;
 mod smtp;
 pub mod sql;
 mod stock;
-mod token;
-#[macro_use]
-mod wrapmime;

 pub mod dc_array;
 mod dc_dehtml;
+pub mod dc_imex;
 pub mod dc_mimeparser;
 pub mod dc_receive_imf;
 mod dc_simplify;
 mod dc_strencode;
 pub mod dc_tools;
+mod login_param;
+mod mimefactory;
+pub mod securejoin;
+mod token;
+#[macro_use]
+mod wrapmime;

 #[cfg(test)]
 mod test_utils;
--- a/src/message.rs
+++ b/src/message.rs
@@ -2,6 +2,8 @@ use std::path::{Path, PathBuf};
 use std::ptr;

 use deltachat_derive::{FromSql, ToSql};
+use libc::{free, strcmp};
+use phf::phf_map;

 use crate::chat::{self, Chat};
 use crate::constants::*;
@@ -107,6 +109,18 @@ impl Message {
            msg.hidden = row.get(18)?;
            msg.location_id = row.get(19)?;
            msg.chat_blocked = row.get::<_, Option<Blocked>>(20)?.unwrap_or_default();
+            if msg.chat_blocked == Blocked::Deaddrop {
+                if let Some(ref text) = msg.text {
+                    unsafe {
+                        let ptr = text.strdup();
+
+                        dc_truncate_n_unwrap_str(ptr, 256, 0);
+
+                        msg.text = Some(to_string(ptr));
+                        free(ptr.cast());
+                    }
+                }
+            };
            Ok(msg)
        })
    }
@@ -130,18 +144,16 @@ impl Message {
        }
    }

-    pub fn get_filemime(&self) -> Option<String> {
+    pub fn get_filemime(&self) -> String {
        if let Some(m) = self.param.get(Param::MimeType) {
-            return Some(m.to_string());
+            return m.to_string();
        } else if let Some(file) = self.param.get(Param::File) {
            if let Some((_, mime)) = guess_msgtype_from_suffix(Path::new(file)) {
-                return Some(mime.to_string());
+                return mime.to_string();
            }
-            // we have a file but no mimetype, let's use a generic one
-            return Some("application/octet-stream".to_string());
        }
-        // no mimetype and no file
-        None
+
+        "application/octet-stream".to_string()
    }

    pub fn get_file(&self, context: &Context) -> Option<PathBuf> {
@@ -334,7 +346,7 @@ impl Message {
    }

    pub fn get_setupcodebegin(&self, context: &Context) -> Option<String> {
-        if !self.is_setupmessage() {
+        if self.is_setupmessage() {
            return None;
        }

@@ -342,7 +354,7 @@ impl Message {
            if let Ok(mut buf) = dc_read_file(context, filename) {
                unsafe {
                    // just a pointer inside buf, MUST NOT be free()'d
-                    let mut buf_headerline = String::default();
+                    let mut buf_headerline = ptr::null();
                    // just a pointer inside buf, MUST NOT be free()'d
                    let mut buf_setupcodebegin = ptr::null();

@@ -352,7 +364,10 @@ impl Message {
                        &mut buf_setupcodebegin,
                        ptr::null_mut(),
                        ptr::null_mut(),
-                    ) && buf_headerline == "-----BEGIN PGP MESSAGE-----"
+                    ) && strcmp(
+                        buf_headerline,
+                        b"-----BEGIN PGP MESSAGE-----\x00" as *const u8 as *const libc::c_char,
+                    ) == 0
                        && !buf_setupcodebegin.is_null()
                    {
                        return Some(to_string(buf_setupcodebegin));
@@ -632,7 +647,7 @@ pub fn get_msg_info(context: &Context, msg_id: u32) -> String {
        ret += "Type: ";
        ret += &format!("{}", msg.type_0);
        ret += "\n";
-        ret += &format!("Mimetype: {}\n", &msg.get_filemime().unwrap_or_default());
+        ret += &format!("Mimetype: {}\n", &msg.get_filemime());
    }
    let w = msg.param.get_int(Param::Width).unwrap_or_default();
    let h = msg.param.get_int(Param::Height).unwrap_or_default();
@@ -659,24 +674,22 @@ pub fn get_msg_info(context: &Context, msg_id: u32) -> String {
 }

 pub fn guess_msgtype_from_suffix(path: &Path) -> Option<(Viewtype, &str)> {
-    let extension: &str = &path.extension()?.to_str()?.to_lowercase();
-    let info = match extension {
-        "mp3" => (Viewtype::Audio, "audio/mpeg"),
-        "aac" => (Viewtype::Audio, "audio/aac"),
-        "mp4" => (Viewtype::Video, "video/mp4"),
-        "jpg" => (Viewtype::Image, "image/jpeg"),
-        "jpeg" => (Viewtype::Image, "image/jpeg"),
-        "jpe" => (Viewtype::Image, "image/jpeg"),
-        "png" => (Viewtype::Image, "image/png"),
-        "webp" => (Viewtype::Image, "image/webp"),
-        "gif" => (Viewtype::Gif, "image/gif"),
-        "vcf" => (Viewtype::File, "text/vcard"),
-        "vcard" => (Viewtype::File, "text/vcard"),
-        _ => {
-            return None;
-        }
+    static KNOWN: phf::Map<&'static str, (Viewtype, &'static str)> = phf_map! {
+        "mp3"   => (Viewtype::Audio, "audio/mpeg"),
+        "aac"   => (Viewtype::Audio, "audio/aac"),
+        "mp4"   => (Viewtype::Video, "video/mp4"),
+        "jpg"   => (Viewtype::Image, "image/jpeg"),
+        "jpeg"  => (Viewtype::Image, "image/jpeg"),
+        "jpe"   => (Viewtype::Image, "image/jpeg"),
+        "png"   => (Viewtype::Image, "image/png"),
+        "webp"  => (Viewtype::Image, "image/webp"),
+        "gif"   => (Viewtype::Gif,   "image/gif"),
+        "vcf"   => (Viewtype::File,  "text/vcard"),
+        "vcard" => (Viewtype::File,  "text/vcard"),
    };
-    Some(info)
+    let extension: &str = &path.extension()?.to_str()?.to_lowercase();
+
+    KNOWN.get(extension).map(|x| *x)
 }

 pub fn get_mime_headers(context: &Context, msg_id: u32) -> Option<String> {
@@ -1143,6 +1156,5 @@ mod tests {
        let msg_id = chat::prepare_msg(ctx, chat, &mut msg).unwrap();

        let _msg2 = Message::load_from_db(ctx, msg_id).unwrap();
-        assert_eq!(_msg2.get_filemime(), None);
    }
 }
--- a/src/mimefactory.rs
+++ b/src/mimefactory.rs
@@ -3,12 +3,12 @@ use std::ptr;

 use chrono::TimeZone;
 use mmime::clist::*;
-use mmime::mailimf::types::*;
-use mmime::mailimf::types_helper::*;
-use mmime::mailmime::disposition::*;
-use mmime::mailmime::types::*;
-use mmime::mailmime::types_helper::*;
-use mmime::mailmime::write_mem::*;
+use mmime::mailimf_types::*;
+use mmime::mailimf_types_helper::*;
+use mmime::mailmime_disposition::*;
+use mmime::mailmime_types::*;
+use mmime::mailmime_types_helper::*;
+use mmime::mailmime_write_mem::*;
 use mmime::mmapstring::*;
 use mmime::other::*;

@@ -86,7 +86,7 @@ impl<'a> MimeFactory<'a> {

    pub fn finalize_mime_message(
        &mut self,
-        message: *mut Mailmime,
+        message: *mut mailmime,
        encrypted: bool,
        gossiped: bool,
    ) -> Result<(), Error> {
@@ -236,12 +236,12 @@ impl<'a> MimeFactory<'a> {
            );
        }

-        let cleanup = |message: *mut Mailmime| {
+        let cleanup = |message: *mut mailmime| {
            if !message.is_null() {
                mailmime_free(message);
            }
        };
-        let message = mailmime_new_message_data(0 as *mut Mailmime);
+        let message = mailmime_new_message_data(0 as *mut mailmime);
        ensure!(!message.is_null(), "could not create mime message data");

        mailmime_set_imf_fields(message, imf_fields);
@@ -257,7 +257,7 @@ impl<'a> MimeFactory<'a> {
                /* Render a normal message
                 *********************************************************************/
                let chat = self.chat.as_ref().unwrap();
-                let mut meta_part: *mut Mailmime = ptr::null_mut();
+                let mut meta_part: *mut mailmime = ptr::null_mut();
                let mut placeholdertext = None;

                if chat.typ == Chattype::VerifiedGroup {
@@ -589,7 +589,7 @@ impl<'a> MimeFactory<'a> {
                    wrapmime::new_content_type("message/disposition-notification")?;
                let mime_fields_0: *mut mailmime_fields =
                    mailmime_fields_new_encoding(MAILMIME_MECHANISM_8BIT as libc::c_int);
-                let mach_mime_part: *mut Mailmime =
+                let mach_mime_part: *mut mailmime =
                    mailmime_new_empty(content_type_0, mime_fields_0);
                wrapmime::set_body_text(mach_mime_part, &message_text2)?;
                mailmime_add_part(multipart, mach_mime_part);
@@ -821,7 +821,7 @@ fn build_body_file(
    context: &Context,
    msg: &Message,
    base_name: &str,
-) -> Result<(*mut Mailmime, String), Error> {
+) -> Result<(*mut mailmime, String), Error> {
    let path_filename = match msg.param.get(Param::File) {
        None => {
            bail!("msg has no filename");
--- a/src/peerstate.rs
+++ b/src/peerstate.rs
@@ -7,7 +7,6 @@ use crate::aheader::*;
 use crate::chat::*;
 use crate::constants::*;
 use crate::context::Context;
-use crate::error::*;
 use crate::key::*;
 use crate::sql::{self, Sql};

@@ -23,7 +22,7 @@ pub struct Peerstate<'a> {
    pub gossip_key: Option<Key>,
    pub gossip_timestamp: i64,
    pub gossip_key_fingerprint: Option<String>,
-    pub verified_key: Option<Key>,
+    verified_key: VerifiedKey,
    pub verified_key_fingerprint: Option<String>,
    pub to_save: Option<ToSave>,
    pub degrade_event: Option<DegradeEvent>,
@@ -85,6 +84,32 @@ pub enum DegradeEvent {
    FingerprintChanged = 0x02,
 }

+#[derive(Debug, Copy, Clone, PartialEq, Eq)]
+enum VerifiedKey {
+    Gossip,
+    Public,
+    None,
+}
+
+impl Default for VerifiedKey {
+    fn default() -> Self {
+        VerifiedKey::None
+    }
+}
+
+impl VerifiedKey {
+    pub fn is_none(&self) -> bool {
+        match self {
+            VerifiedKey::None => true,
+            _ => false,
+        }
+    }
+
+    pub fn is_some(&self) -> bool {
+        !self.is_none()
+    }
+}
+
 impl<'a> Peerstate<'a> {
    pub fn new(context: &'a Context) -> Self {
        Peerstate {
@@ -98,13 +123,21 @@ impl<'a> Peerstate<'a> {
            gossip_key: None,
            gossip_key_fingerprint: None,
            gossip_timestamp: 0,
-            verified_key: None,
+            verified_key: Default::default(),
            verified_key_fingerprint: None,
            to_save: None,
            degrade_event: None,
        }
    }

+    pub fn verified_key(&self) -> Option<&Key> {
+        match self.verified_key {
+            VerifiedKey::Public => self.public_key.as_ref(),
+            VerifiedKey::Gossip => self.gossip_key.as_ref(),
+            VerifiedKey::None => None,
+        }
+    }
+
    pub fn from_header(context: &'a Context, header: &Aheader, message_time: i64) -> Self {
        let mut res = Self::new(context);

@@ -208,11 +241,19 @@ impl<'a> Peerstate<'a> {
                    .get(6)
                    .ok()
                    .and_then(|blob: Vec<u8>| Key::from_slice(&blob, KeyType::Public));
-                res.verified_key = row
+                let vk = row
                    .get(9)
                    .ok()
                    .and_then(|blob: Vec<u8>| Key::from_slice(&blob, KeyType::Public));

+                res.verified_key = if vk == res.gossip_key && res.gossip_key.is_some() {
+                    VerifiedKey::Gossip
+                } else if vk == res.public_key {
+                    VerifiedKey::Public
+                } else {
+                    VerifiedKey::None
+                };
+
                Ok(res)
            })
            .ok()
@@ -332,7 +373,7 @@ impl<'a> Peerstate<'a> {
        }

        if 0 != min_verified {
-            return self.verified_key.as_ref();
+            return self.verified_key();
        }
        if self.public_key.is_some() {
            return self.public_key.as_ref();
@@ -349,7 +390,7 @@ impl<'a> Peerstate<'a> {
                && self.public_key_fingerprint.as_ref().unwrap() == fingerprint
            {
                self.to_save = Some(ToSave::All);
-                self.verified_key = self.public_key.clone();
+                self.verified_key = VerifiedKey::Public;
                self.verified_key_fingerprint = self.public_key_fingerprint.clone();
                success = true;
            }
@@ -358,7 +399,7 @@ impl<'a> Peerstate<'a> {
                && self.gossip_key_fingerprint.as_ref().unwrap() == fingerprint
            {
                self.to_save = Some(ToSave::All);
-                self.verified_key = self.gossip_key.clone();
+                self.verified_key = VerifiedKey::Gossip;
                self.verified_key_fingerprint = self.gossip_key_fingerprint.clone();
                success = true;
            }
@@ -367,19 +408,28 @@ impl<'a> Peerstate<'a> {
        success
    }

-    pub fn save_to_db(&self, sql: &Sql, create: bool) -> Result<()> {
-        ensure!(!self.addr.is_none(), "self.addr is not configured");
+    pub fn save_to_db(&self, sql: &Sql, create: bool) -> bool {
+        let mut success = false;
+
+        if self.addr.is_none() {
+            return success;
+        }
+
        if create {
-            sql::execute(
+            if sql::execute(
                self.context,
                sql,
                "INSERT INTO acpeerstates (addr) VALUES(?);",
                params![self.addr.as_ref().unwrap()],
-            )?;
+            )
+            .is_err()
+            {
+                return false;
+            }
        }

        if self.to_save == Some(ToSave::All) || create {
-            sql::execute(
+            success = sql::execute(
                self.context,
                sql,
 		"UPDATE acpeerstates \
@@ -396,13 +446,14 @@ impl<'a> Peerstate<'a> {
                    self.gossip_key.as_ref().map(|k| k.to_bytes()),
                    &self.public_key_fingerprint,
                    &self.gossip_key_fingerprint,
-                    self.verified_key.as_ref().map(|k| k.to_bytes()),
+                    self.verified_key().map(|k| k.to_bytes()),
                    &self.verified_key_fingerprint,
                    &self.addr,
                ],
-            )?
+            ).is_ok();
+            assert_eq!(success, true);
        } else if self.to_save == Some(ToSave::Timestamps) {
-            sql::execute(
+            success = sql::execute(
                self.context,
                sql,
                "UPDATE acpeerstates SET last_seen=?, last_seen_autocrypt=?, gossip_timestamp=? \
@@ -413,14 +464,15 @@ impl<'a> Peerstate<'a> {
                    self.gossip_timestamp,
                    &self.addr
                ],
-            )?;
+            )
+            .is_ok();
        }

        if self.to_save == Some(ToSave::All) || create {
            reset_gossiped_timestamp(self.context, 0);
        }

-        Ok(())
+        success
    }

    pub fn has_verified_key(&self, fingerprints: &HashSet<String>) -> bool {
@@ -464,16 +516,13 @@ mod tests {
            gossip_key: Some(pub_key.clone()),
            gossip_timestamp: 12,
            gossip_key_fingerprint: Some(pub_key.fingerprint()),
-            verified_key: Some(pub_key.clone()),
+            verified_key: VerifiedKey::Gossip,
            verified_key_fingerprint: Some(pub_key.fingerprint()),
            to_save: Some(ToSave::All),
            degrade_event: None,
        };

-        assert!(
-            peerstate.save_to_db(&ctx.ctx.sql, true).is_ok(),
-            "failed to save to db"
-        );
+        assert!(peerstate.save_to_db(&ctx.ctx.sql, true), "failed to save");

        let peerstate_new = Peerstate::from_addr(&ctx.ctx, &ctx.ctx.sql, addr.into())
            .expect("failed to load peerstate from db");
@@ -509,16 +558,13 @@ mod tests {
            gossip_key: None,
            gossip_timestamp: 12,
            gossip_key_fingerprint: None,
-            verified_key: None,
+            verified_key: VerifiedKey::None,
            verified_key_fingerprint: None,
            to_save: Some(ToSave::All),
            degrade_event: None,
        };

-        assert!(
-            peerstate.save_to_db(&ctx.ctx.sql, true).is_ok(),
-            "failed to save"
-        );
+        assert!(peerstate.save_to_db(&ctx.ctx.sql, true), "failed to save");

        let peerstate_new = Peerstate::from_addr(&ctx.ctx, &ctx.ctx.sql, addr.into())
            .expect("failed to load peerstate from db");
--- a/src/pgp.rs
+++ b/src/pgp.rs
@@ -19,7 +19,7 @@ use crate::keyring::*;

 pub unsafe fn dc_split_armored_data(
    buf: *mut libc::c_char,
-    ret_headerline: *mut String,
+    ret_headerline: *mut *const libc::c_char,
    ret_setupcodebegin: *mut *const libc::c_char,
    ret_preferencrypt: *mut *const libc::c_char,
    ret_base64: *mut *const libc::c_char,
@@ -31,6 +31,9 @@ pub unsafe fn dc_split_armored_data(
    let mut p2: *mut libc::c_char;
    let mut headerline: *mut libc::c_char = ptr::null_mut();
    let mut base64: *mut libc::c_char = ptr::null_mut();
+    if !ret_headerline.is_null() {
+        *ret_headerline = ptr::null()
+    }
    if !ret_setupcodebegin.is_null() {
        *ret_setupcodebegin = ptr::null_mut();
    }
@@ -40,7 +43,7 @@ pub unsafe fn dc_split_armored_data(
    if !ret_base64.is_null() {
        *ret_base64 = ptr::null();
    }
-    if !buf.is_null() {
+    if !(buf.is_null() || ret_headerline.is_null()) {
        dc_remove_cr_chars(buf);
        while 0 != *p1 {
            if *p1 as libc::c_int == '\n' as i32 {
@@ -59,7 +62,9 @@ pub unsafe fn dc_split_armored_data(
                        ) == 0i32
                    {
                        headerline = line;
-                        *ret_headerline = as_str(headerline).to_string();
+                        if !ret_headerline.is_null() {
+                            *ret_headerline = headerline
+                        }
                    }
                } else if strspn(line, b"\t\r\n \x00" as *const u8 as *const libc::c_char)
                    == strlen(line)
--- a/src/securejoin.rs
+++ b/src/securejoin.rs
@@ -413,7 +413,7 @@ pub fn handle_securejoin_handshake(
                could_not_establish_secure_connection(
                    context,
                    contact_chat_id,
-                    if mimeparser.encrypted {
+                    if mimeparser.e2ee_helper.encrypted {
                        "No valid signature."
                    } else {
                        "Not encrypted."
@@ -522,9 +522,7 @@ pub fn handle_securejoin_handshake(
                    error!(context, "Chat {} not found.", &field_grpid);
                    return ret;
                } else {
-                    if let Err(err) =
-                        chat::add_contact_to_chat_ex(context, group_chat_id, contact_id, true)
-                    {
+                    if let Err(err) = chat::add_contact_to_chat_ex(context, group_chat_id, contact_id, true) {
                        error!(context, "failed to add contact: {}", err);
                    }
                }
@@ -678,7 +676,7 @@ fn mark_peer_as_verified(context: &Context, fingerprint: impl AsRef<str>) -> Res
        if peerstate.set_verified(1, fingerprint.as_ref(), 2) {
            peerstate.prefer_encrypt = EncryptPreference::Mutual;
            peerstate.to_save = Some(ToSave::All);
-            peerstate.save_to_db(&context.sql, false).unwrap();
+            peerstate.save_to_db(&context.sql, false);
            return Ok(());
        }
    }
@@ -693,16 +691,17 @@ 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.e2ee_helper.encrypted {
        warn!(mimeparser.context, "Message not encrypted.",);
        false
-    } else if mimeparser.signatures.len() <= 0 {
+    } else if mimeparser.e2ee_helper.signatures.len() <= 0 {
        warn!(mimeparser.context, "Message not signed.",);
        false
    } else if expected_fingerprint.as_ref().is_empty() {
        warn!(mimeparser.context, "Fingerprint for comparison missing.",);
        false
    } else if !mimeparser
+        .e2ee_helper
        .signatures
        .contains(expected_fingerprint.as_ref())
    {
@@ -717,24 +716,21 @@ fn encrypted_and_signed(mimeparser: &MimeParser, expected_fingerprint: impl AsRe
    }
 }

-pub fn handle_degrade_event(context: &Context, peerstate: &Peerstate) -> Result<(), Error> {
+pub fn handle_degrade_event(context: &Context, peerstate: &Peerstate) {
    // - we do not issue an warning for DC_DE_ENCRYPTION_PAUSED as this is quite normal
    // - currently, we do not issue an extra warning for DC_DE_VERIFICATION_LOST - this always comes
    //   together with DC_DE_FINGERPRINT_CHANGED which is logged, the idea is not to bother
    //   with things they cannot fix, so the user is just kicked from the verified group
    //   (and he will know this and can fix this)
    if Some(DegradeEvent::FingerprintChanged) == peerstate.degrade_event {
-        let contact_id: i32 = match context.sql.query_get_value(
-            context,
-            "SELECT id FROM contacts WHERE addr=?;",
-            params![&peerstate.addr],
-        ) {
-            None => bail!(
-                "contact with peerstate.addr {:?} not found",
-                &peerstate.addr
-            ),
-            Some(contact_id) => contact_id,
-        };
+        let contact_id: i32 = context
+            .sql
+            .query_get_value(
+                context,
+                "SELECT id FROM contacts WHERE addr=?;",
+                params![&peerstate.addr],
+            )
+            .unwrap_or_default();
        if contact_id > 0 {
            let (contact_chat_id, _) =
                chat::create_or_lookup_by_contact_id(context, contact_id as u32, Blocked::Deaddrop)
@@ -750,5 +746,4 @@ pub fn handle_degrade_event(context: &Context, peerstate: &Peerstate) -> Result<
            emit_event!(context, Event::ChatModified(contact_chat_id));
        }
    }
-    Ok(())
 }
--- a/src/smtp.rs
+++ b/src/smtp.rs
@@ -70,9 +70,8 @@ impl Smtp {
        let port = lp.send_port as u16;

        let tls = native_tls::TlsConnector::builder()
-            // see also: https://github.com/deltachat/deltachat-core-rust/issues/203
+            // FIXME: unfortunately this is needed to make things work on macos + testrun.org
            .danger_accept_invalid_hostnames(true)
-            .danger_accept_invalid_certs(true)
            .min_protocol_version(Some(DEFAULT_TLS_PROTOCOLS[0]))
            .build()
            .unwrap();
--- a/src/sql.rs
+++ b/src/sql.rs
@@ -777,7 +777,7 @@ fn open(
                        if let Some(ref mut peerstate) = Peerstate::from_addr(context, sql, &addr?)
                        {
                            peerstate.recalc_fingerprint();
-                            peerstate.save_to_db(sql, false).unwrap();
+                            peerstate.save_to_db(sql, false);
                        }
                    }
                    Ok(())
--- a/src/test_utils.rs
+++ b/src/test_utils.rs
@@ -76,7 +76,7 @@ pub fn configure_alice_keypair(ctx: &Context) -> String {
        KeyType::Private,
    )
    .unwrap();
-    let saved = key::dc_key_save_self_keypair(&ctx, &public, &private, &addr, true, &ctx.sql);
+    let saved = key::dc_key_save_self_keypair(&ctx, &public, &private, &addr, 1, &ctx.sql);
    assert_eq!(saved, true, "Failed to save Alice's key");
    addr
 }
--- a/src/wrapmime.rs
+++ b/src/wrapmime.rs
@@ -1,16 +1,14 @@
 use std::ffi::CString;
-use std::ptr;

 use crate::dc_tools::*;
 use crate::error::Error;
 use mmime::clist::*;
-use mmime::mailimf::types::*;
-use mmime::mailimf::types_helper::*;
-use mmime::mailmime::content::*;
-use mmime::mailmime::disposition::*;
-use mmime::mailmime::types::*;
-use mmime::mailmime::types_helper::*;
+use mmime::mailimf_types::*;
+use mmime::mailimf_types_helper::*;
 use mmime::mailmime::*;
+use mmime::mailmime_disposition::*;
+use mmime::mailmime_types::*;
+use mmime::mailmime_types_helper::*;
 use mmime::other::*;

 #[macro_export]
@@ -27,137 +25,8 @@ macro_rules! clist_append {
    };
 }

-/**************************************
-* mime parsing API
-**************************************/
-
-pub fn get_ct_subtype(mime: *mut Mailmime) -> Option<String> {
-    unsafe {
-        let ct: *mut mailmime_content = (*mime).mm_content_type;
-
-        if !ct.is_null() && !(*ct).ct_subtype.is_null() {
-            Some(to_string((*ct).ct_subtype))
-        } else {
-            None
-        }
-    }
-}
-
-pub fn get_autocrypt_mime(
-    mime_undetermined: *mut Mailmime,
-) -> Result<(*mut Mailmime, *mut Mailmime), Error> {
-    /* return Result with two mime pointers:
-
-    First mime pointer is to the multipart-mime message
-    (which is replaced with a decrypted version later)
-
-    Second one is to the encrypted payload.
-    For non-autocrypt message an Error is returned.
-    */
-    unsafe {
-        ensure!(
-            (*mime_undetermined).mm_type == MAILMIME_MESSAGE as libc::c_int,
-            "Not a root mime message"
-        );
-        let mime = (*mime_undetermined).mm_data.mm_message.mm_msg_mime;
-
-        ensure!(
-            (*mime).mm_type == MAILMIME_MULTIPLE as libc::c_int
-                && "encrypted" == get_ct_subtype(mime).unwrap_or_default(),
-            "Not a multipart/encrypted message"
-        );
-        let parts: Vec<_> = (*(*mime).mm_data.mm_multipart.mm_mp_list)
-            .into_iter()
-            .map(|c| c as *mut Mailmime)
-            .collect();
-        ensure!(parts.len() == 2, "Invalid Autocrypt Level 1 Mime Parts");
-        // XXX ensure protocol-parameter "application/pgp-encrypted")
-        // XXX ensure wrapmime::get_content_type(parts[1])) == "application/octetstream"
-        // a proper OpenPGP multipart/encrypted Autocrypt Level 1 message
-        // https://tools.ietf.org/html/rfc3156.html#section-4
-        Ok((mime, parts[1]))
-    }
-}
-
-pub fn has_decryptable_data(mime_data: *mut mailmime_data) -> bool {
-    /* MAILMIME_DATA_FILE indicates, the data is in a file; AFAIK this is not used on parsing */
-    unsafe {
-        (*mime_data).dt_type == MAILMIME_DATA_TEXT as libc::c_int
-            && !(*mime_data).dt_data.dt_text.dt_data.is_null()
-            && (*mime_data).dt_data.dt_text.dt_length > 0
-    }
-}
-
-pub fn get_mime_transfer_encoding(mime: *mut Mailmime) -> Option<libc::c_int> {
-    unsafe {
-        let mm_mime_fields = (*mime).mm_mime_fields;
-        if !mm_mime_fields.is_null() {
-            for cur_data in (*(*mm_mime_fields).fld_list).into_iter() {
-                let field: *mut mailmime_field = cur_data as *mut _;
-                if (*field).fld_type == MAILMIME_FIELD_TRANSFER_ENCODING as libc::c_int
-                    && !(*field).fld_data.fld_encoding.is_null()
-                {
-                    return Some((*(*field).fld_data.fld_encoding).enc_type);
-                }
-            }
-        }
-    }
-    None
-}
-
-pub fn decode_dt_data(
-    mime_data: *mut mailmime_data,
-    mime_transfer_encoding: libc::c_int,
-) -> Result<(*mut libc::c_char, libc::size_t), Error> {
-    // Decode data according to mime_transfer_encoding
-    // returns Ok with a (decoded_data,decoded_data_bytes) pointer
-    // where the caller must make sure to free it.
-    // It may return Ok(ptr::null_mut(), 0)
-
-    let mut transfer_decoding_buffer: *mut libc::c_char = ptr::null_mut();
-    let decoded_data: *mut libc::c_char;
-    let mut decoded_data_bytes: libc::size_t = 0;
-    if mime_transfer_encoding == MAILMIME_MECHANISM_7BIT as libc::c_int
-        || mime_transfer_encoding == MAILMIME_MECHANISM_8BIT as libc::c_int
-        || mime_transfer_encoding == MAILMIME_MECHANISM_BINARY as libc::c_int
-    {
-        unsafe {
-            decoded_data = (*mime_data).dt_data.dt_text.dt_data as *mut _;
-            decoded_data_bytes = (*mime_data).dt_data.dt_text.dt_length;
-        }
-        ensure!(
-            !decoded_data.is_null() && decoded_data_bytes > 0,
-            "could not decode mime message"
-        );
-    } else {
-        let mut current_index: libc::size_t = 0;
-        unsafe {
-            let r = mailmime_part_parse(
-                (*mime_data).dt_data.dt_text.dt_data,
-                (*mime_data).dt_data.dt_text.dt_length,
-                &mut current_index,
-                mime_transfer_encoding,
-                &mut transfer_decoding_buffer,
-                &mut decoded_data_bytes,
-            );
-            if r != MAILIMF_NO_ERROR as libc::c_int
-                || transfer_decoding_buffer.is_null()
-                || decoded_data_bytes <= 0
-            {
-                bail!("mailmime_part_parse returned error or invalid data");
-            }
-            decoded_data = transfer_decoding_buffer;
-        }
-    }
-    Ok((decoded_data, decoded_data_bytes))
-}
-
-/**************************************
-* mime creation API
-**************************************/
-
 pub fn add_filename_part(
-    message: *mut Mailmime,
+    message: *mut mailmime,
    basename: &str,
    mime_type: &str,
    file_content: &str,
@@ -188,9 +57,9 @@ pub fn new_custom_field(fields: *mut mailimf_fields, name: &str, value: &str) {
    }
 }

-pub fn build_body_text(text: &str) -> Result<*mut Mailmime, Error> {
+pub fn build_body_text(text: &str) -> Result<*mut mailmime, Error> {
    let mime_fields: *mut mailmime_fields;
-    let message_part: *mut Mailmime;
+    let message_part: *mut mailmime;

    let content = new_content_type("text/plain")?;
    append_ct_param(content, "charset", "utf-8")?;
@@ -235,7 +104,7 @@ pub fn new_content_type(content_type: &str) -> Result<*mut mailmime_content, Err
    Ok(content)
 }

-pub fn set_body_text(part: *mut Mailmime, text: &str) -> Result<(), Error> {
+pub fn set_body_text(part: *mut mailmime, text: &str) -> Result<(), Error> {
    use libc::strlen;
    unsafe {
        let text_c = text.strdup();
--- a/test-data/message/stress.txt
+++ b/test-data/message/stress.txt
@@ -1,125 +0,0 @@
-----BEGIN PGP MESSAGE-----
-Passphrase-Format: numeric9x4
-Passphrase-Begin: 17
-
-wy4ECQMI0jNRBQfVKHVg1+a2Yihd6JAjR9H0kk3oDVeX7nc4Oi+IjEtonUJt
-PQpO0tPWASWYuYvjZSuTz9r1yZYV+y4mu9bu9NEQoRlWg2wnbjoUoKk4emFF
-FweUj84iI6VWTCSRyMu5d5JS1RfOdX4CG/muLAegyIHezqYOEC0Z3b9Ci9rd
-DiSgqqN+/LDkUR/vr7L2CSLN5suBP9Hsz75AtaV8DJ2DYDywYX89yH1CfL1O
-WohyrJPdmGJZfdvQX0LI9mzN7MH0W6vUJeCaUpujc+UkLiOM6TDB74rmYF+V
-Z7K9BXbaN4V6dyxVZfgpXUoZlaNpvqPJXuLHJ68umkuIgIyQvzmMj3mFgZ8s
-akCt6Cf3o5O9n2PJvX89vuNnDGJrO5booEqGaBJfwUk0Rwb0gWsm5U0gceUz
-dce8KZK15CzX+bNv5OC+8jjjBw7mBHVt+2q8LI+G9fEy9NIREkp5/v2ZRN0G
-R6lpZwW+8TkMvJnriQeABqDpxsJVT6ENYAhkPG3AZCr/whGBU3EbDzPexXkz
-qt8Pdu5DrazLSFtjpjkekrjCh43vHjGl8IOiWxKQx0VfBkHJ7O9CsHmb0r1o
-F++fMh0bH1/aewmlg5wd0ixwZoP1o79he8Q4kfATZAjvB1xSLyMma+jxW5uu
-U3wYUOsUmYmzo46/QzizFCUpaTJ4ZQZY1/4sflidsl/XgZ0fD1NCrdkWBNA1
-0tQF949pEAeA4hSfHfQDNKAY8A7fk8lZblqWPkyu/0x8eV537QOhs89ZvhSB
-V87KEAwxWt60+Eolf8PvvkvB/AKlfWq4MYShgyldwwCfkED3rv2mvTsdqfvW
-WvqZNo4eRkJrnv9Be3LaXoFyY6a3z+ObBIkKI+u5azGJYge97O4E2DrUEKdQ
-cScq5upzXity0E+Yhm964jzBzxnA52S4RoXzkjTxH+AHjQ5+MHQxmRfMd2ly
-7skM106weVOR0JgOdkvfiOFDTHZLIVCzVyYVlOUJYYwPhmM1426zbegHNkaM
-M2WgvjMp5G+X9qfDWKecntQJTziyDFZKfd1UrUCPHrvl1Ac9cuqgcCXLtdUS
-jI+e1Y9fXvgyvHiMX0ztSz1yfvnRt34508G9j68fEQFQR/VIepULB5/SqKbq
-p2flgJL48kY32hEw2GRPri64Tv3vMPIWa//zvQDhQPmcd3S4TqnTIIKUoTAO
-NUo6GS9UAX12fdSFPZINcAkNIaB69+iwGyuJE4FLHKVkqNnNmDwF3fl0Oczo
-hbboWzA3GlpR2Ri6kfe0SocfGR0CHT5ZmqI6es8hWx+RN8hpXcsRxGS0BMi2
-mcJ7fPY+bKastnEeatP+b0XN/eaJAPZPZSF8PuPeQ0Uc735fylPrrgtWK9Gp
-Wq0DPaWV/+O94OB/JvWT5wq7d/EEVbTck5FPl4gdv3HHpaaQ6/8G89wVMEXA
-GUxB8WuvNeHAtQ7qXF7TkaZvUpF0rb1aV88uABOOPpsfAyWJo/PExCZacg8R
-GOQYI6inV5HcGUw06yDSqArHZmONveqjbDBApenearcskv6Uz7q+Bp60GGSA
-lvU3C3RyP/OUc1azOp72MIe0+JvP8S5DN9/Ltc/5ZyZHOjLoG+npIXnThYwV
-0kkrlsi/7loCzvhcWOac1vrSaGVCfifkYf+LUFQFrFVbxKLOQ6vTsYZWM0yM
-QsMMywW5A6CdROT5UB0UKRh/S1cwCwrN5UFTRt2UpDF3wSBAcChsHyy90RAL
-Xd4+ZIyf29GIFuwwQyzGBWnXQ2ytU4kg/D5XSqJbJJTya386UuyQpnFjI19R
-uuD0mvEfFvojCKDJDWguUNtWsHSg01NXDSrY26BhlOkMpUrzPfX5r0FQpgDS
-zOdY9SIG+y9MKG+4nwmYnFM6V5NxVL+6XZ7BQTvlLIcIIu+BujVNWteDnWNZ
-T1UukCGmFd8sNZpCc3wu4o/gLDQxih/545tWMf0dmeUfYhKcjSX9uucMRZHT
-1N0FINw04fDdp2LccL+WCGatFGnkZVPw3asid4d1od9RG9DbNRBJEp/QeNhc
-/peJCPLGYlA1NjTEq+MVB+DHdGNOuy//be3KhedBr6x4VVaDzL6jyHu/a7PR
-BWRVtI1CIVDxyrEXucHdGQoEm7p+0G2zouOe/oxbPFoEYrjaI+0e/FN3u/Y3
-aG0dlYWbxeHMqTh2F3lB/CFALReeGqqN6PwRyePWKaVctZYb6ydf9JVl6q1/
-aV9C5rf9eFGqqA+OIx/+XuAG1w0rwlznvtajHzCoUeA4QfbmuOV/t5drWN2N
-PCk2mJlcSmd7lx53rnOIgme1hggchjezc4TisL4PvSLxjJ7DxzktD2jv2I/Q
-OlSxTUaXnGfIVedsI0WjFomz5w9tZjC0B5O5TpSRRz6gfpe/OC3kV7qs1YCS
-lJTTxj1mTs6wqt0WjKkN/Ke0Cm5r7NQ79szDNlcC0AViEOQb3U1R88nNdiVx
-ymKT5Dl+yM6acv53lNX6O5BH+mpP2/pCpi3x+kYFyr4cUsNgVVGlhmkPWctZ
-trHvO7wcLrAsrLNqRxt1G3DLjQt9VY+w5qOPJv6s9qd5JBL/qtH5zqIXiXlM
-IWI9LLwHFFXqjk/f6G4LyOeHB9AqccGQ4IztgzTKmYEmFWVIpTO4UN6+E7yQ
-gtcYSIUEJo824ht5rL+ODqmCSAWsWIomEoTPvgn9QqO0YRwAEMpsFtE17klS
-qjbYyV7Y5A0jpCvqbnGmZPqCgzjjN/p5VKSNjSdM0vdwBRgpXlyooXg/EGoJ
-ZTZH8nLSuYMMu7AK8c7DKJ1AocTNYHRe9xFV8RzEiIm3zaezxa0r+Fo3nuTX
-UR9DOH0EHaDLrFQcfS5y1iRxY9CHg0N2ECaUzr/H7jck9mLZ7v9xisj3QDuv
-i0xQbC4BTxMEBGTK8fOcjHHOABOyhqotOreERqwOV2c1OOGUQE8QK18zJCUd
-BTmQZ709ttASD7VWK4TraOGczZXkZsKdZko5T6+6EkFy9H+gwENLUG9zk0x9
-2G5zicDr6PDoAGDuoB3B3VA8ertXTX7zEz30N6m+tcAtPWka0owokLy3f0o7
-ZdytBPkly8foTMWKF2vsJ8K4Xdn/57jJ2qFku32xmtiPIoa6s8wINO06AVB0
-0/AuttvxcPr+ycE+9wRZHx6JBujAqOZztU3zu8WZMaqVKb7gnmkWPiL+1XFp
-2+mr0AghScIvjzTDEjigDtLydURJrW01wXjaR0ByBT4z8ZjaNmQAxIPOIRFC
-bD0mviaoX61qgQLmSc6mzVlzzNZRCKtSvvGEK5NJ6CB6g2EeFau8+w0Zd+vv
-/iv6Img3pUBgvpMaIsxRXvGZwmo2R0tztJt+CqHRvyTWjQL+CjIAWyoHEdVH
-k7ne/q9zo3iIMsQUO7tVYtgURpRYc2OM1IVQtrgbmbYGEdOrhMjaWULg9C7o
-6oDM0EFlCAId3P8ykXQNMluFKlf9il5nr19B/qf/wh6C7DFLOmnjTWDXrEiP
-6wFEWTeUWLchGlbpiJFEu05MWPIRoRd3BHQvVpzLLgeBdxMVW7D6WCK+KJxI
-W1rOKhhLVvKU3BrFgr12A4uQm+6w1j33Feh68Y0JB7GLDBBGe11QtLCD6kz5
-RzFl+GbgiwpHi3nlCc5yiNwyPq/JRxU3GRb62YJcsSQBg+CD3Mk5FGiDcuvp
-kZXOcTE2FAnUDigjEs+oH2qkhD4/5CiHkrfFJTzv+wqw+jwxPor2jkZH2akN
-6PssXQYupXJE3NmcyaYT+b5E6qbkIyQj7CknkiqmrqrmxkOQxA+Ab2Vy9zrW
-u0+Wvf+C+SebWTo3qfJZQ3KcASZHa5AGoSHetWzH2fNLIHfULXac/T++1DWE
-nbeNvhXiFmAJ+BRsZj9p6RcnSamk4bjAbX1lg2G3Sq6MiA1fIRSMlSjuDLrQ
-8xfVFrg7gfBIIQPErJWv2GdAsz76sLxuSXQLKYpFnozvMT7xRs84+iRNWWh9
-SNibbEjlh0DcJlKw49Eis/bN22sDQWy4awHuRvvQetk/QCgp54epuqWnbxoE
-XZDgGBBkMc3or+6Cxr3q9x7J/oHLvPb+Q5yVP9fyz6ZiSVWluMefA9smjJ/A
-KMD84s7uO/8/4yug+swXGrcBjHSddTcy05vm+7X6o9IEZKZb5tz7VqAfEcuk
-QNPUWCMudhzxSNr4+yVXRVpcjsjKtplJcXC5aIuJwq3C5OdysCGqXWjLuUu1
-OFSoPvTsYC2VxYdFUcczeHEFTxXoXz3I0TyLPyxUNsJiKpUGt/SXmV/IyAx+
-h6pZ2OUXspC9d78DdiHZtItPjEGiIb678ZyMxWPE59XQd/ad92mlPHU8InXD
-yTq6otZ7LwAOLGbDR9bqN7oX8PCHRwuu30hk2b4+WkZn/WLd2KCPddQswZJg
-Qgi5ajUaFhZvxF5YNTqIzzYVh7Y8fFMfzH9AO+SJqy+0ECX0GwtHHeVsXYNb
-P/NO/ma4MI8301JyipPmdtzvvt9NOD/PJcnZH2KmDquARXMO/vKbn3rNUXog
-pTFqqyNTr4L5FK86QPEoE4hDy9ItHGlEuiNVD+5suGVGUgYfV7AvZU46EeqO
-rfFj8wNSX1aK/pIwWmh1EkygPSxomWRUANLX1jO6zX9wk2X80Xn9q/8jot1k
-Vl54OOd7cvGls2wKkEZi5h3p6KKZHJ+WIDBQupeJbuma1GK8wAiwjDH59Y0X
-wXHAk7XA+t4u0dgRpZbUUMqQmvEvfJaCr4qMlpuGdEYbbpIMUB1qCfYU9taL
-zbepMIT+XYD5mTyytZhR+zrsfpt1EzbrhuabqPioySoIS/1+bWfxvndq16r0
-AdNxR5LiVSVh8QJr3B/HJhVghgSVrrynniG3E94abNWL/GNxPS/dTHSf8ass
-vbv7+uznADzHsMiG/ZlLAEkQJ9j0ENJvHmnayeVFIXDV6jPCcQJ+rURDgl7z
-/qTLfe3o3zBMG78LcB+xDNXTQrK5Z0LX7h17hLSElpiUghFa9nviCsT0nkcr
-nz302P4IOFwJuYMMCEfW+ywTn+CHpKjLHWkZSZ4q6LzNTbbgXZn/vh7njNf0
-QHaHmaMNxnDhUw/Bl13uM52qtsfEYK07SEhLFlJbAk0G7q+OabK8dJxCRwS3
-X9k4juzLUYhX8XBovg9G3YEVckb6iM8/LF/yvNXbUsPrdhYU9lPA63xD0Pgb
-zthZCLIlnF+lS6e41WJv3n1dc4dFWD7F5tmt/7uwLC6oUGYsccSzY+bUkYhL
-dp7tlQRd5AG/Xz8XilORk8cUjvi6uZss5LyQpKvGSU+77C8ZV/oS62BdS5TE
-osBTrO2/9FGzQtHT+8DJSTPPgR6rcQUWLPemiG09ACKfRQ/g3b9Qj0upOcKL
-6dti0lq7Aorc39vV18DPMFBOwzchUEBlBFyuSa4AoD30tsoilAC3qbzBwu3z
-QLjmst76HEcWDkxgDAhlBz6/XgiVZsCivn7ygigmc2+hNEzIdDsKKfM9bkoe
-3uJzmmsv8Bh5ZEtfGoGNmu/zA7tgvTOCBeotYeHr2O6pLmYb3hK+E/qCBl14
-8pK4qYrjAlF+ZMq9BzXcaz5mRfKVfAQtghHOaNqopBczSE1bjFF6HaNhIaGa
-N8YdabNQG7mLI/fgBxJfkPl6HdIhEpctp4RURbSFhW+wn0o85VyHM6a+6Vgj
-NrYmhxPZ6N1KN0Qy76aNiw7nAToRRcOv87uZnkDIeVH8mP/0hldyiy/Y97cG
-QgOeQHOG27QW57nHhqLRqvf0zzQZekuXWFbqajpaabEcdGXyiUpJ8/ZopBPM
-AJwfkyA2LkV946IA4JV6sPnu9pYzpXQ4vdQKJ6DoDUyRTQmgmfSFGtfHAozY
-V9k0iQeetSkYYtOagTrg3t92v7M00o/NJW/rKX4jj2djD8wtBovOcv4kxg4Z
-o58Iv94ROim48XfyesvSYKN1xqqbXH4sfE6b4b9pLUxQVOmWANLK9MK8D+Ci
-IvrGbz5U5bZP6vlNbe9bYzjvWTPjaMrjXknRTBcikavqOfDTSIVFtT4qvhvK
-42PpOrm0qdiLwExGKQ9FfEfYZRgEcYRGg7rH3oNz6ZNOEXppF3tCl9yVOlFb
-ygdIeT3Z3HeOQbAsi8jK7o16DSXL7ZOpFq9Bv9yzusrF7Eht/fSEpAVUO3D1
-IuqjZcsQRhMtIvnF0oFujFtooJx9x3dj/RarvEGX/NzwATZkgJ+yWs2etruA
-EzMQqED4j7Lb790zEWnt+nuHdCdlPnNy8RG5u5X62p3h5KqUbg9HfmIuuESi
-hwr6dKsVQGc5XUB5KTt0dtjWlK5iaetDsZFuF5+aE0Xa6PmiQ2e7ZPFyxXmO
-T/PSHzobx0qClKCu+tSWA1HDSL08IeoGZEyyhoaxyn5D9r1Mqg101v/iu59r
-lRRs+plAhbuq5aQA3WKtF1N6Zb5+AVRpNUyrxyHoH36ddR4/n7lnIld3STGD
-RqZLrOuKHS3dCNW2Pt15lU+loYsWFZwC6T/tAbvwhax+XaBMiKQSDFmG9sBw
-TiM1JWXhq2IsjXBvCl6k2AKWLQOvc/Hin+oYs4d7M9mi0vdoEOAMadU/+Pqn
-uZzP941mOUV5UeTCCbjpyfI7qtIi3TH1cQmC2kG2HrvQYuM6Momp//JusH1+
-9eHgFo25HbitcKJ1sAqxsnYIW5/jIVyIJC7tatxmNfFQQ/LUb2cT+Jowwsf4
-bbPinA9S6aQFy9k3vk07V2ouYl+cpMMXmNAUrboFRLxw7QDapWYMKdmnbU5O
-HZuDz3iyrm0lMPsRtt/f5WUhZYY4vXT5/dj+8P6Pr5fdc4S84i5qEzf7bX/I
-Sc6fpISdYBscfHdv6uXsEVtVPKEuQVYwhyc4kkwVKjZBaqsgjAA7VEhQXzO3
-rC7di4UhabWQCQTG1GYZyrj4bm6dg/32uVxMoLS5kuSpi3nMz5JmQahLqRxh
-argg13K2/MJ7w2AI23gCvO5bEmD1ZXIi1aGYdZfu7+KqrTumYxj0KgIesgU0
-6ekmPh4Zu5lIyKopa89nfQVj3uKbwr9LLHegfzeMhvI5WQWghKcNcXEvJwSA
-vEik5aXm2qSKXT+ijXBy5MuNeICoGaQ5WA0OJ30Oh5dN0XpLtFUWHZKThJvR
-mngm1QCMMw2v/j8=
-=9sJE
-----END PGP MESSAGE-----
--- a/tests/stress.rs
+++ b/tests/stress.rs
Author	SHA1	Message	Date
holger krekel	f40cdcc2ac	remove ok-to-continue from chat.rs	2019-09-23 20:02:51 +02:00
holger krekel	957f099037	no functional code change: rename dc_mimefactory to mimefactory and move some functions to become MimeFactory methods	2019-09-23 19:22:26 +02:00