Block aggressive bots

agentblock.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"net/http"
+	"strings"
+)
+
+func agentBlock(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		userAgent := r.UserAgent()
+		if strings.Contains(userAgent, "Amazonbot") {
+			// Drop the request by returning a 403 Forbidden response
+			http.Error(w, "Forbidden", http.StatusForbidden)
+			return
+		}
+
+		// Call the next handler in the chain
+		next.ServeHTTP(w, r)
+	})
+}

main.go

@@ -159,10 +159,12 @@ func main() {
 	mux.HandleFunc("/{code}", renderEvent)
 	mux.HandleFunc("/{$}", renderHomepage)
 
+	loggedMux := loggingMiddleware(mux)
+	agentMux := agentBlock(loggedMux)
 
 	corsHandler := cors.Default().Handler(
 		http.HandlerFunc(
-			ipblock(loggedMux), // Wrap loggedMux with IP blocking
+			ipblock(agentMux),
 		),
 	)
 	go updateCloudflareRangesRoutine()