Floris Bruynooghe c82fdb9fa1 Refactor return values from secure-join message handling
This return value was very complicated to understand.  Some failure
returns were returned as Err and some as Ok with no consistency, but
resulting in the same behaviour.

This refactor makes the handle_securejoin_handshake the sole place
responsible for maintaining the state of the secure join
process (context.bob) and also in charge of terminating the ongoing
process.  This is none of receive_imf's business.

The remaining returns are now cleanly classified in application-errors
and protocol errors:

Applications errors result in an Err and mean there is a bug or
something else serious went wrong, like database access suddenly
failed or so.  In this case receive_imf is still responsible for
clearing the state and resetting ongoing-process.  It may be possible
this should still be moved back to securejoin.rs so that recieve_imf
doesn't need to know anything about this either.

Protocol errors are not failures for receive_imf, it just means the
received message didn't follow the protocol.  Receive_imf in this case
is told to ignore the message: that is hide it but not delete it.

Other Ok returns also only say what needs to happen to the message:

- It's fully processed and needs no further processing, instead should
  be removed

- It should still be processed as a normal received message.

This changes some behaviour: if the chat creation/lookup for the
contact fails this is treated as an application error.  Previously
this was silently ignored and send_msg() would be called with a 0
chat_id without checking the response.  This resulted in the protocol
quitely being blocked.

This all shhould now make it easier to resultify more of the functions
called by this function, instead of having to deal with very
complicated application logic hidden in the return code.
2020-01-13 20:46:58 +01:00
2019-12-06 20:10:19 +01:00
2019-11-30 01:32:51 +01:00
2020-01-12 21:54:38 +00:00
2019-12-22 05:45:27 +01:00
2019-06-19 19:02:42 +02:00
2019-12-26 00:42:07 +01:00

Delta Chat Rust

Deltachat-core written in Rust

CircleCI build status Appveyor build status

Installing Rust and Cargo

To download and install the official compiler for the Rust programming language, and the Cargo package manager, run the command in your user environment:

curl https://sh.rustup.rs -sSf | sh

Using the CLI client

Compile and run Delta Chat Core command line utility, using cargo:

cargo run --example repl -- /path/to/db

Configure your account (if not already configured):

Delta Chat Core is awaiting your commands.
> set addr your@email.org
> set mail_pw yourpassword
> configure

Connect to your mail server (if already configured):

> connect

Create a contact:

> addcontact yourfriends@email.org
Command executed successfully.

List contacts:

> listcontacts
Contact#10: <name unset> <yourfriends@email.org>
Contact#1: Me √√ <your@email.org>

Create a chat with your friend and send a message:

> createchat 10
Single#10 created successfully.
> chat 10
Single#10: yourfriends@email.org [yourfriends@email.org]
> send hi
Message sent.

If yourfriend@email.org uses DeltaChat, but does not receive message just sent, it is advisable to check Spam folder. It is known that at least gmx.com treat such test messages as spam, unless told otherwise with web interface.

List messages when inside a chat:

> chat

For more commands type:

> help

Development

# run tests
$ cargo test --all
# build c-ffi
$ cargo build -p deltachat_ffi --release

Debugging environment variables

  • DCC_IMAP_DEBUG: if set IMAP protocol commands and responses will be printed

  • DCC_MIME_DEBUG: if set outgoing and incoming message will be printed

Expensive tests

Some tests are expensive and marked with #[ignore], to run these use the --ignored argument to the test binary (not to cargo itself):

$ cargo test -- --ignored

Features

  • vendored: When using Openssl for TLS, this bundles a vendored version.
  • nightly: Enable nightly only performance and security related features.
  • ringbuf: Enable the use of slice_deque in pgp.

Language bindings and frontend projects

Language bindings are available for:

The following "frontend" projects make use of the Rust-library or its language bindings:

Description
Chatmail Rust Core library, used by Android/iOS/desktop chatmail apps, bindings and bots 📧
Readme MPL-2.0 102 MiB
Languages
Rust 74.3%
Tcl 9.1%
Python 8.9%
C 4.9%
DIGITAL Command Language 1.1%
Other 1.6%