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ab781bf5f4
f36a5b8cd7 introduced
deserialize_events, moving the deserialization out of handle_state.
However, the new code in deserialize_events used filter_map, which
caused a deserialization failure to lead to the indices of the
serialized and deserialized events to no longer match up.
This was not caught because iter::zip also does not require that its
arguments have matching lengths, causing the mismatch to cascade for
that batch of events, and persist in the store. An application
affected by this form of corruption can, for example, call
room.get_state_events requesting events of a certain type, and getting
back events of a different type.
Fix the bug by using Option to preserve the length of
deserialize_events' return value, and add an assertion to ensure
handle_state's contract.
Signed-off-by: Vladimir Panteleev <git@cy.md>
matrix-rust-sdk
matrix-rust-sdk is an implementation of a Matrix client-server library in Rust.
Project structure
The rust-sdk consists of multiple crates that can be picked at your convenience:
- matrix-sdk - High level client library, with batteries included, you're most likely interested in this.
- matrix-sdk-base - No (network) IO client state machine that can be used to embed a Matrix client in your project or build a full fledged network enabled client lib on top of it.
- matrix-sdk-crypto - No (network) IO encryption state machine that can be used to add Matrix E2EE support to your client or client library.
Minimum Supported Rust Version (MSRV)
These crates are built with the Rust language version 2021 and require a minimum compiler version of 1.70.
Status
The library is in an alpha state, things that are implemented generally work but the API will change in breaking ways.
If you are interested in using the matrix-sdk now is the time to try it out and provide feedback.
Bindings
Some crates of the matrix-rust-sdk can be embedded inside other
environments, like Swift, Kotlin, JavaScript, Node.js etc. Please,
explore the bindings/ directory to learn more.