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Telegram-FOSS

Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

This is an unofficial, FOSS-friendly fork of the original Telegram App for Android.

This version of Telegram is available on FDroid:

Current Maintainers

• thermatk
• Bubu
• you? :)

Discussion

Join the Telegram-FOSS Offtopics group

You can also join #telegram-foss:matrix.org via matrix or #telegram-foss on freenode.

Changes:

Replacement of non-FOSS, untrustworthy or suspicious binaries or source code:

• Do location sharing with OpenStreetMap(osmdroid) instead of Google Maps
• Use Twemoji emoji set instead of Apple's emoji
• Google Play Services GCM replaced with always-on Telegram's push service
• SECURITY: Old BoringSSL prebuilts are replaced with the newest upstream OpenSSL source code built at compile time
• SECURITY: Old FFmpeg prebuilts are replaced with the newest upstream source code built at compile time
• SECURITY: Bundled SQLite is updated
• SECURITY: Bundled libWebP is updated

Removal of non-FOSS, untrustworthy or suspicious binaries or source code and their functionality:

• Google Vision face detection
• Google Wallet and Android Pay integration
• Bing image search (would require an API key)
• Foursquare map search (would require an API key)
• HockeyApp crash reporting and self-updates

Other:

• Added the ability to parse locations from intents containing a geo:<lat>,<lon>,<zoom> string.
• Builds with armv6 support
• Fix calls

Versioning

This repository contains tags to make tracking versions easier.

Versions are in form "v$UPSTREAM$RELEASE" where:

• $UPSTREAM is the public, visible version of upstream.
• $RELEASE is a letter ([a-z]) indicating minor releases between official versions (sometimes, upstream is updated without relating the changes to an specific version).

API, Protocol documentation

Telegram API manuals: https://core.telegram.org/api

MTproto protocol manuals: https://core.telegram.org/mtproto

Building

Important:

1. You need the Android-NDK r14b to build the apk.

2. Don't forget to include the submodules when you clone:

   • git clone --recursive https://github.com/Telegram-FOSS-Team/Telegram-FOSS.git

3. Build native FFmpeg dependency:

   • Go to the TMessagesProj/jni folder and execute the following (define the path to your NDK r14b installation):

   export NDK=[PATH_TO_NDK]
   ./build_ffmpeg_android.sh
   

4. If you want to publish a modified version of Telegram:

   • You should get your own API key here: https://core.telegram.org/api/obtaining_api_id and create a file called API_KEYS in the source root directory. The contents should look like this:

     APP_ID = 12345
     APP_HASH = aaaaaaaabbbbbbccccccfffffff001122
     

   • Do not use the name Telegram and the standard logo (white paper plane in a blue circle) for your app — or make sure your users understand that it is unofficial
   • Take good care of your users' data and privacy
   • Please remember to publish your code too in order to comply with the licenses

5. Building under Windows may be problematic and won't be fixed

The project can be built with Android Studio or from the command line with gradle:

./gradlew assembleFatRelease

DIGITAL RESISTANCE