BetterDesk/docs/setup/BUILD_GUIDE.md

BetterDesk - Building from Source

This guide explains how to build BetterDesk enhanced binaries from source code.

Overview

BetterDesk is built on top of the official RustDesk Server with additional modifications:

• HTTP API for device management
• Real-time online status tracking
• Device banning capabilities
• Enhanced database schema

Quick Start

Linux

# Interactive build
./build-betterdesk.sh

# Automatic build with defaults
./build-betterdesk.sh --auto

Windows

# Interactive build
.\build-betterdesk.ps1

# Automatic build with defaults
.\build-betterdesk.ps1 -Auto

---

Manual Build Process

Prerequisites

Linux

# Ubuntu/Debian
sudo apt-get update
sudo apt-get install -y build-essential libsqlite3-dev pkg-config libssl-dev git

# Install Rust
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
source ~/.cargo/env

Windows

1. Install Rust
2. Install Visual Studio Build Tools with C++ support
3. Install Git

Step 1: Clone RustDesk Server

# Clone specific version
git clone --depth 1 --branch 1.1.14 https://github.com/rustdesk/rustdesk-server.git
cd rustdesk-server

# Initialize submodules
git submodule update --init --recursive

Step 2: Apply BetterDesk Modifications

Copy the modification files from hbbs-patch-v2/src/ to the RustDesk source:

# From the Rustdesk-FreeConsole directory
cp hbbs-patch-v2/src/main.rs rustdesk-server/src/
cp hbbs-patch-v2/src/http_api.rs rustdesk-server/src/
cp hbbs-patch-v2/src/database.rs rustdesk-server/src/
cp hbbs-patch-v2/src/peer.rs rustdesk-server/src/

Step 3: Build Binaries

cd rustdesk-server

# Build Signal Server (hbbs)
cargo build --release -p hbbs

# Build Relay Server (hbbr)
cargo build --release -p hbbr

Step 4: Locate Binaries

After successful build, binaries are located in:

• target/release/hbbs (Linux) or target/release/hbbs.exe (Windows)
• target/release/hbbr (Linux) or target/release/hbbr.exe (Windows)

---

Cross-Compilation

Linux ARM64 (from x86_64)

# Install cross-compiler
sudo apt-get install -y gcc-aarch64-linux-gnu

# Add Rust target
rustup target add aarch64-unknown-linux-gnu

# Configure linker
cat >> .cargo/config.toml << EOF
[target.aarch64-unknown-linux-gnu]
linker = "aarch64-linux-gnu-gcc"
EOF

# Build
cargo build --release --target aarch64-unknown-linux-gnu -p hbbs
cargo build --release --target aarch64-unknown-linux-gnu -p hbbr

Windows from Linux (using cross)

# Install cross
cargo install cross

# Build Windows binaries
cross build --release --target x86_64-pc-windows-gnu -p hbbs
cross build --release --target x86_64-pc-windows-gnu -p hbbr

---

Modification Files

File	Purpose
main.rs	Entry point with --api-port argument, HTTP API startup
http_api.rs	Full HTTP API implementation (list, online status, ban)
database.rs	Database operations with BetterDesk extensions
peer.rs	Peer management with additional fields

Key Modifications in main.rs

// Added command-line argument
#[arg(long, value_name = "PORT", help = "HTTP API port for BetterDesk Console")]
api_port: Option<u16>,

// API startup in main()
if let Some(port) = opt.api_port {
    let db_path = db_dir.clone();
    tokio::spawn(async move {
        http_api::start_api_server(port, db_path).await;
    });
}

Key Features in http_api.rs

// Endpoints
GET  /api/peers          - List all registered devices
GET  /api/peers/online   - List currently online devices
POST /api/peers/{id}/ban - Ban a device

---

GitHub Actions CI/CD

The project includes automated builds via GitHub Actions.

Automatic Triggers

• Changes to hbbs-patch-v2/src/** on the main branch
• Changes to .github/workflows/build.yml

Manual Trigger

1. Go to Actions tab in GitHub
2. Select "Build BetterDesk Binaries"
3. Click "Run workflow"
4. Optionally select RustDesk version and release options

Artifacts

Built binaries are available as workflow artifacts for 30 days.

---

Build Script Options

Linux (build-betterdesk.sh)

Option	Description
--auto	Non-interactive mode with defaults
--clean	Clean build directory
--version VERSION	Specify RustDesk version
--platform PLATFORM	Target: linux-x64, linux-arm64, windows-x64
--help	Show help

Windows (build-betterdesk.ps1)

Option	Description
-Auto	Non-interactive mode
-Clean	Clean build directory
-Version VERSION	Specify RustDesk version
-Platform PLATFORM	Target platform
-Help	Show help

---

Troubleshooting

Build Fails with SQLite Errors

# Linux - Install SQLite dev package
sudo apt-get install libsqlite3-dev

# Or use bundled SQLite
cargo build --release --features bundled

Missing OpenSSL

# Linux
sudo apt-get install libssl-dev pkg-config

# Windows: Usually bundled, but if needed:
# Install via vcpkg or use openssl-sys

Axum Version Mismatch

BetterDesk uses axum 0.5.x. If upgrading RustDesk base version, check Cargo.toml for axum version changes.

Cross-Compilation Fails

# Ensure correct linker is configured
# For ARM64:
export CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER=aarch64-linux-gnu-gcc

---

Verifying Builds

Check Binary Version

./hbbs-linux-x86_64 --version

Verify API Port Support

./hbbs-linux-x86_64 --help | grep api-port

Should show:

--api-port <PORT>    HTTP API port for BetterDesk Console

Test API Functionality

# Start server with API
./hbbs-linux-x86_64 -k _ --api-port 21114 &

# Test API
curl http://localhost:21114/api/peers

---

Contributing Modifications

1. Make changes in hbbs-patch-v2/src/
2. Test locally with build scripts
3. Submit PR with updated source files
4. CI will automatically build and test

See CONTRIBUTING.md for full guidelines.

---

Version Tracking

Component	Version
RustDesk Server Base	1.1.14
BetterDesk HTTP API	2.0.0
Install Scripts	1.5.x

When updating RustDesk base version:

1. Test API compatibility
2. Update build scripts
3. Rebuild all platform binaries
4. Update CHECKSUMS.md