fixed mock value

main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"encoding/json"
 	"flag"
 	"fmt"
 	"io"
@@ -100,16 +101,26 @@ func bruteForcing(vulnURL string) (bool, int, int) {
 				return false, 1, 1
 			}
 
-			if buf.String() != "[]" {
-				rrdName := "asdf"
-				if rrdName == "polling_time" || rrdName == "uptime" {
+			// perse the json response
+			var jsonResponse []map[string]interface{}
+			err = json.Unmarshal([]byte(buf.String()), &jsonResponse)
+			if err != nil {
+				fmt.Println("Error unmarshalling JSON:", err)
+				return false, 1, 1
+			}
+
+			// the response must have at least one item
+			if len(jsonResponse) > 0 {
+				// first item, and the rrd_name field
+				rrdName, exists := jsonResponse[0]["rrd_name"].(string)
+				if exists && (rrdName == "polling_time" || rrdName == "uptime") {
 					fmt.Println("Bruteforce Success")
 					return true, n, n2
 				}
 			}
 		}
 	}
-	fmt.Println("Unknown error occured")
+	fmt.Println("Unknown error occurred")
 	return false, 1, 1
 }