Meet Server

The high-performance signaling and media relay server for the Meet application. Built with Rust, Axum, and Tokio.

Features

Signaling: WebSocket-based room management and peer discovery.
Media Relay: Custom UDP protocol for low-latency video and screen sharing.
Architecture: Asynchronous, localized state management using DashMap.

Prerequisites

Rust: Latest stable version. Install via rustup.rs.
Build Tools: build-essential (Ubuntu) or Development Tools group (Fedora/RHEL).

Installation

Clone the Repository:

git clone <your-server-repo-url>
cd server

Verify Shared Crate: Ensure the shared directory exists in the root. This contains protocol definitions used by both client (logic port) and server.
```
ls -F shared/
```
Build:
```
cargo build --release
```
The binary will be located at target/release/server.

Running the Server

Ports

TCP/WebSocket: 6000 (Bind: 0.0.0.0:6000)
UDP (Media): 4000 (Bind: 0.0.0.0:4000)

Local Development

cargo run

Runs on 0.0.0.0:6000 (HTTP/WS) and 0.0.0.0:4000 (UDP).

Production Deployment

Run the Binary:
```
./target/release/server
```

Firewall: Ensure TCP 6000 and UDP 4000 are open.

# Fedora/CentOS
sudo firewall-cmd --add-port=6000/tcp --permanent
sudo firewall-cmd --add-port=4000/udp --permanent
sudo firewall-cmd --reload

# Ubuntu/Debian (UFW)
sudo ufw allow 6000/tcp
sudo ufw allow 4000/udp

Systemd (Optional): Create a service file /etc/systemd/system/meet-server.service to keep it running.

Project Structure

src/main.rs: Entry point. Sets up Axum router and spawns the UDP listener.
src/handlers.rs: WebSocket handlers for joining rooms, signaling, and chat.
src/udp.rs: The core UDP packet handling loop. Manages media relaying.
src/state.rs: Shared application state (Rooms, Peers).
shared/: Local crate containing shared data structures (Packet headers, MediaType enums).

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