Added logging on allowed domains middleware and duplicate requests

middleware/allowed_domains.go

@@ -3,16 +3,21 @@ package middleware
 import (
 	"github.com/geziyor/geziyor/client"
 	"github.com/geziyor/geziyor/internal"
+	"log"
+	"sync"
 )
 
 // AllowedDomains checks for request host if it exists in AllowedDomains
 type AllowedDomains struct {
 	AllowedDomains []string
+	logOnlyOnce    sync.Map
 }
 
 func (a *AllowedDomains) ProcessRequest(r *client.Request) {
 	if len(a.AllowedDomains) != 0 && !internal.Contains(a.AllowedDomains, r.Host) {
-		//log.Printf("Domain not allowed: %s\n", req.Host)
+		if _, logged := a.logOnlyOnce.LoadOrStore(r.Host, struct{}{}); !logged {
+			log.Printf("Domain not allowed: %s\n", r.Host)
+		}
 		r.Cancel()
 		return
 	}