🌟 What is Urusai?

Urusai (Japanese for 'noisy') is your digital privacy companion that generates random HTTP/DNS traffic noise in the background while you browse the web. By creating this digital smokescreen, it helps make your actual web traffic data less valuable for tracking and selling.

✨ Features

• 🌐 Generates random HTTP/DNS traffic by crawling websites
• ⚙️ Configurable via JSON configuration file
• 🎭 Customizable user agents, root URLs, and blacklisted URLs
• ⏱️ Adjustable crawling depth and sleep intervals
• ⏰ Optional timeout setting

📥 Installation

Arch Linux (AUR)

yay -S urusai

Void Linux

sudo xbps-install -S urusai

📦 Using Pre-built Binaries

The easiest way to get started is to download a pre-built binary from the releases page 🚀

1. Download the appropriate binary for your platform:

   • 🍎 urusai-macos-amd64 - for macOS Intel systems
   • 🍏 urusai-macos-arm64 - for macOS Apple Silicon systems
   • 🐧 urusai-linux-amd64 - for Linux x86_64 systems
   • 🪟 urusai-windows-amd64.exe - for Windows x86_64 systems

2. Make the binary executable (Unix-based systems only):

   chmod +x urusai-*
   

3. 🚀 Run the binary:

   # 🍎 On macOS (Intel)
   ./urusai-macos-amd64
   
   # 🍏 On macOS (Apple Silicon)
   ./urusai-macos-arm64
   
   # 🐧 On Linux
   ./urusai-linux-amd64
   
   # 🪟 On Windows (using Command Prompt)
   urusai-windows-amd64.exe
   

🛠️ Building from Source

# 💻 Clone the repository
git clone https://github.com/calpa/urusai.git

# 📁 Navigate to the project directory
cd urusai

# 💿 Build the project
go build -o urusai

🐳 Using Docker

🌌 Pull from Docker Hub

# 📥 Pull the latest image
docker pull calpa/urusai:latest

# 🚀 Run the container with default configuration
docker run calpa/urusai

# ⚙️ Run with custom configuration (mount your config file)
docker run -v $(pwd)/config.json:/app/config.json calpa/urusai --config config.json

The Docker image is available for multiple platforms:

• 💻 linux/amd64 (x86_64)
• 🍏 linux/arm64 (Apple Silicon)
• 📱 linux/arm/v7 (32-bit ARM)

💻 Build Locally

# 🏗️ Build the Docker image
docker build -t urusai .

# 🚀 Run your locally built container
docker run urusai

Usage

# Run with built-in default configuration
./urusai

# Run with custom configuration file
./urusai --config config.json

# Show help
./urusai --help

Command Line Arguments

• --config: Path to the configuration file (optional, uses built-in default configuration if not specified)
• --log: Logging level (default: "info")
• --timeout: For how long the crawler should be running, in seconds (optional, 0 means no timeout)

⚙️ Configuration

Urusai comes with a built-in default configuration, but you can also provide your own custom configuration file. The configuration is in JSON format with the following structure:

{
    "max_depth": 25,      // 🕳️ Maximum crawling depth
    "min_sleep": 3,      // 💤 Minimum sleep between requests (seconds)
    "max_sleep": 6,      // ⏳ Maximum sleep between requests (seconds)
    "timeout": 0,        // ⏰ Crawler timeout (0 = no timeout)
    "root_urls": [       // 🌐 Starting points for crawling
        "https://www.wikipedia.org",
        "https://www.github.com"
    ],
    "blacklisted_urls": [ // ⛔ URLs to skip
        ".css",
        ".ico",
        ".xml"
    ],
    "user_agents": [      // 👨‍💻 Browser identities
        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36"
    ]
}

👨‍💻 For Developers

🛠️ Development

Urusai is developed using standard Go practices. Here are some commands that will help you during development:

# 💻 Run the project directly without building
go run main.go

# 📝 Run with a specific log level
go run main.go --log debug

# ⚙️ Run with a custom configuration file
go run main.go --config config.json

# ⏰ Run with a timeout (in seconds)
go run main.go --timeout 300

🧪 Testing

Urusai includes comprehensive test coverage for all packages. The tests verify configuration loading, command-line flag parsing, and crawler functionality.

# 🎣 Run all tests
go test ./...

# 📘 Run tests with verbose output
go test -v ./...

# 📈 Run tests with coverage
go test -cover ./...

# 📋 Generate a coverage report
go test -coverprofile=coverage.out ./...
go tool cover -html=coverage.out

Test files include:

• 📓 main_test.go: Tests for command-line parsing, configuration loading, and signal handling
• 📒 config/config_test.go: Tests for configuration loading and validation

🏗️ Building

# 🛠️ Build for the current platform
go build -o urusai

# 💻 Build for a specific platform (e.g., Linux)
GOOS=linux GOARCH=amd64 go build -o urusai-linux-amd64

# 🌐 Build for multiple platforms
GOOS=darwin GOARCH=amd64 go build -o urusai-macos-amd64
GOOS=windows GOARCH=amd64 go build -o urusai-windows-amd64.exe

⭐ Star History

🚀 Releases

Urusai uses GitHub Actions for automated releases. When a new tag with format v* (e.g., v1.0.0) is pushed to the repository, GitHub Actions will automatically:

1. 🧪 Run tests to ensure code quality
2. 🔨 Build binaries for all supported platforms (macOS Intel/ARM, Linux, Windows)
3. 📦 Create compressed archives of the binaries
4. 🎉 Create a new GitHub release with the binaries attached

To create a new release:

# 🏷️ Tag the commit
git tag v1.0.0

# 🚀 Push the tag to GitHub
git push origin v1.0.0

The GitHub Actions workflow will handle the rest automatically.

💎 Code Quality

# 🎨 Format code
go fmt ./...

# 🔍 Vet code for potential issues
go vet ./...

# ✨ Run linter (requires golint)
go install golang.org/x/lint/golint@latest
golint ./...

# 🔬 Run static analysis (requires staticcheck)
go install honnef.co/go/tools/cmd/staticcheck@latest
staticcheck ./...

📜 License

This project is licensed under the MIT License - see the LICENSE file for details. ⚖️