66 lines
1.4 KiB
Go
66 lines
1.4 KiB
Go
package main
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import (
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"context"
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"log"
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"net/http"
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"os"
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"os/signal"
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"syscall"
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"time"
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)
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const defaultTargetURL = "https://venueaxe.com"
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func getEnv(key, fallback string) string {
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if value := os.Getenv(key); value != "" {
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return value
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}
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return fallback
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}
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func redirectHandler(targetURL string) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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http.Redirect(w, r, targetURL, http.StatusMovedPermanently)
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}
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}
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func main() {
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port := getEnv("PORT", "8080")
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targetURL := getEnv("TARGET_URL", defaultTargetURL)
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mux := http.NewServeMux()
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mux.HandleFunc("/", redirectHandler(targetURL))
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server := &http.Server{
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Addr: ":" + port,
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Handler: mux,
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ReadTimeout: 5 * time.Second,
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WriteTimeout: 10 * time.Second,
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IdleTimeout: 120 * time.Second,
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}
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// Channel to listen for interrupt signals for graceful shutdown
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stop := make(chan os.Signal, 1)
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signal.Notify(stop, os.Interrupt, syscall.SIGTERM)
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go func() {
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log.Printf("Starting redirect server on :%s -> %s", port, targetURL)
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if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
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log.Fatalf("HTTP server error: %v\n", err)
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}
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}()
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<-stop
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log.Println("Shutting down server gracefully...")
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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if err := server.Shutdown(ctx); err != nil {
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log.Fatalf("Server shutdown failed: %+v", err)
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}
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log.Println("Server exited")
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}
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