🔍 CertStream Monitor

Real-time SSL/TLS certificate monitoring tool using CertStream! 🚀

🌟 Features

• 🎯 Monitor multiple domains
• 🔄 Auto-reconnection
• ⚡ Real-time certificate detection
• 🔐 Tracks both new and renewal certificates
• 🛠️ Configurable WebSocket endpoint

🚀 Quick Start

# Install
go get github.com/jonasbg/certstream-monitor

# Run with default settings
./certstream-monitor example.com

# Run with custom CertStream server
CERTSTREAM_URL=ws://your-server:8080/stream ./certstream-monitor example.com

💻 Code Example

package main

import (
	"fmt"
	"os"
	"os/signal"
	"syscall"

	certmonitor "github.com/jonasbg/certstream-monitor"
)

func main() {
	// Domains to monitor
	domains := []string{"example.com", "yourdomain.com"}
	
	// Create a done channel for shutdown
	done := make(chan bool)
	
	// Set up graceful shutdown
	go func() {
		sigChan := make(chan os.Signal, 1)
		signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM)
		<-sigChan
		fmt.Println("\nShutting down...")
		done <- true
	}()

	// Initialize and start the monitor
	monitor := certmonitor.New(
		certmonitor.WithDomains(domains),
		certmonitor.WithWebSocketURL("ws://localhost:8080/full-stream"),
	)

	// Start monitoring with callback for certificate events
	monitor.Start(done, func(cert *certmonitor.CertData) {
		// Handle certificate updates here
		fmt.Printf("Certificate update for: %s\n", cert.Data.LeafCert.Subject.CN)
	})
}

🎮 Usage Examples

Monitor multiple domains:

./certstream-monitor example.com subdomain.example.com another.com

🔧 Configuration

Set custom WebSocket URL:

export CERTSTREAM_URL=ws://your-custom-server:8080/stream

🧱 BUILD

CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build -ldflags "-s -w" -trimpath -o certstream-monitor main.go

📜 License

MIT License 🎉

🤝 Contributing

PRs welcome! 🎈