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

1. Clone the Repository:

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

2. 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/
   

3. 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

1. Run the Binary:

   ./target/release/server
   

2. 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
   

3. 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).