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https://github.com/vadniks/exchatgedesktopclient
A secured real-time message and file exchanger (desktop client)
https://github.com/vadniks/exchatgedesktopclient
asynchronous-programming binary-protocol c cmake e2e-encryption gui libsodium low-level-memory-manipulation modern-c multithreading nuklear realtime-messaging responsive-design sdl2 sdl2-net secured-communication socket-client socket-programming sqlite3 thread-synchronization
Last synced: 4 days ago
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A secured real-time message and file exchanger (desktop client)
- Host: GitHub
- URL: https://github.com/vadniks/exchatgedesktopclient
- Owner: vadniks
- License: gpl-3.0
- Created: 2023-05-26T19:45:54.000Z (over 1 year ago)
- Default Branch: master
- Last Pushed: 2024-03-29T17:47:08.000Z (8 months ago)
- Last Synced: 2024-03-29T18:53:42.039Z (8 months ago)
- Topics: asynchronous-programming, binary-protocol, c, cmake, e2e-encryption, gui, libsodium, low-level-memory-manipulation, modern-c, multithreading, nuklear, realtime-messaging, responsive-design, sdl2, sdl2-net, secured-communication, socket-client, socket-programming, sqlite3, thread-synchronization
- Language: C
- Homepage:
- Size: 2.13 MB
- Stars: 1
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: Readme.md
- License: LICENSE
Awesome Lists containing this project
README
# Exchatge - a secured message exchanger (desktop client)
```
_______ _ _ _______ _ _ _______ _______ ______ _______
|______ \___/ | |_____| |_____| | | ____ |______
|______ _/ \_ |_____ | | | | | |_____| |______
```
The purpose of this project is to easily exchange messages
via binary protocol using an encrypted communication channel
in the realtime. Each client-to-server connection is encrypted,
each client-to-client connection is also encrypted. All messages
go through server, but because of presence of the second layer
of encryption between clients, any interception of messages by
the server or anyone else is useless. File exchange is supported.
Project is created for Linux x86_64 desktop platforms (PCs).
## Key features:
* Double end-to-end encryption (each connection between client and server is encrypted, as well as the each conversation channel between 2 clients),
* Encrypted file exchanging via binary protocol,
* Authentication and authorization (each client has login and password, ephemeral token based protection),
* User roles (one admin and $(MAX_USERS_COUNT - 1) users),
* Asynchronous execution,
* Missing messages fetching,
* Graphical user interface,
* Human-readable options file,
* Multiple active simultaneous connections,
* Digital signatures checking between clients and server,
* Broadcasting (only one layer of encryption - between client and server, from admin to all others),
* Instant messages delivery,
* Different languages support.
## Dependencies
Client side is written entirely in C (C11, with GNU extensions).
Build is performed via [GNU Make](https://www.gnu.org/software/make)
or via [Ninja](https://ninja-build.org/)
with help of [CMake](https://cmake.org) build system generator.
Compilation is performed via [CLang](https://clang.llvm.org/).
Client side uses the following libraries:
* [SDL2](https://github.com/libsdl-org/SDL);
* [SDL2Net](https://github.com/libsdl-org/SDL_net);
* [LibSodium](https://github.com/jedisct1/libsodium);
* [Nuklear](https://github.com/Immediate-Mode-UI/Nuklear);
* [SQLite3](https://sqlite.org);
* [GNU C Library (GLIBC)](https://www.gnu.org/software/libc) - therefore project targets Linux systems.
## The project is currently in `Beta`
[The server](https://github.com/vadniks/ExchatgeServer) \
[Android client](https://github.com/vadniks/ExchatgeAndroidClient)
## Screenshots
## Build
For convenience, build is performed automatically via shell scripts.
Execute the following commands to download & build dependencies,
then, to extract the executable & it's libraries, and finally, to run
the executable itself:
```shell
# build
chmod +x buildDependencies.sh && ./buildDependencies.sh
mkdir build && (cd build; cmake .. && make)
# test
(cd build; ctest tests)
# prepare to run
chmod +x extract.sh && ./extract.sh
patchelf --set-rpath '$ORIGIN' extracted/ExchatgeDesktopClient
# run
(cd extracted; ./ExchatgeDesktopClient)
```
## Documentation
`TODO`