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Previously, standard Autocrypt rule was used to determine whether encryption is enabled: if at least one recipient does not prefer encryption, encryption is disabled. This rule has been problematic in large groups, because the larger is the group, the higher is the chance that one of the users does not prefer encryption. New rule requires a majority of users to prefer encryption. Note that it does not affect 1:1 chats, because it is required that *strictly* more than a half users in a chat prefer encryption.
Delta Chat Rust
Deltachat-core written in Rust
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:
$ RUST_LOG=info cargo run --example repl --features repl -- ~/deltachat-db
where ~/deltachat-db is the database file. Delta Chat will create it if it does not exist.
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 -
RUST_LOG=info,async_imap=trace,async_smtp=trace: enable IMAP and SMTP tracing in addition to info messages.
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.
Language bindings and frontend projects
Language bindings are available for:
- C
- Node.js
- Python
- Go
- Free Pascal
- Java and Swift (contained in the Android/iOS repos)
The following "frontend" projects make use of the Rust-library or its language bindings: