Alexander "PapaTutuWawa
4346b31637
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65 lines
2.5 KiB
Markdown
65 lines
2.5 KiB
Markdown
# omemo_dart
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`omemo_dart` is a Dart library to help developers of Dart/Flutter XMPP clients to implement
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[OMEMO](https://xmpp.org/extensions/xep-0384.html) in its newest version - currently 0.8.3.
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The library provides an implementation of the [X3DH](https://signal.org/docs/specifications/x3dh/)
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key exchange, the [Double Ratchet](https://signal.org/docs/specifications/doubleratchet/) with
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the OMEMO 0.8.3 specific `ENCRYPT`, `DECRYPT` and `KDF_*` functions and a very high-level
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`OmemoSessionManager` that manages all Double Ratchet sessions and provides a clean and simple
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interface for encrypting a message for all known Ratchet sessions we have with a user.
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This library also has no dependency on any XMPP library. `omemo_dart` instead defines an
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intermediary format for the required data that you, the user, will need to transform to and from
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the stanza format of your preferred XMPP library yourself.
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## Important Notes
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- **Please note that this library has not been audited for its security! Use at your own risk!**
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- This library is not tested with other implementations of OMEMO 0.8.3 as I do not know of any client implementing spec compliant OMEMO 0.8.3. It does, however, work with itself.
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## Usage
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Include `omemo_dart` in your `pubspec.yaml` like this:
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```yaml
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# [...]
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dependencies:
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omemo_dart:
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hosted: https://git.polynom.me/api/packages/PapaTutuWawa/pub
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version: ^0.3.1
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# [...]
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# [...]
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```
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## Contributing
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Due to issues with `protobuf`, `omemo_dart` reimplements the Protobuf encoding for the required
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OMEMO messages. As such, `protobuf` is only a dependency for testing that the serialisation and
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deserialisation of the custom implementation. In order to run tests, you need the Protbuf
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compiler. After that, making sure that
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the [Dart Protobuf compiler addon](https://pub.dev/packages/protoc_plugin) and the
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Protobuf compiler itself is in your PATH,
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run `protoc -I=./protobuf/ --dart_out=lib/protobuf/ ./protobuf/schema.proto` in the
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repository's root to generate the real Protobuf bindings.
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When submitting a PR, please run the linter using `dart analyze` and make sure that all
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tests still pass using `dart test`.
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To ensure uniform commit message formatting, please also use `gitlint` to lint your commit
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messages' formatting.
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## License
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Licensed under the MIT license.
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See `LICENSE`.
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## Support
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If you like what I do and you want to support me, feel free to donate to me on Ko-Fi.
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[<img src="https://codeberg.org/moxxy/moxxyv2/raw/branch/master/assets/repo/kofi.png" height="36" style="height: 36px; border: 0px;"></img>](https://ko-fi.com/papatutuwawa)
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