1 files changed, 12 insertions, 0 deletions
diff --git a/src/main/java/de/pixart/messenger/utils/SocksSocketFactory.java b/src/main/java/de/pixart/messenger/utils/SocksSocketFactory.java
index e3465fb9b..0bc27749a 100644
--- a/src/main/java/de/pixart/messenger/utils/SocksSocketFactory.java
+++ b/src/main/java/de/pixart/messenger/utils/SocksSocketFactory.java
@@ -18,6 +18,9 @@ public class SocksSocketFactory {
         proxyOs.write(new byte[]{0x05, 0x01, 0x00});
         byte[] response = new byte[2];
         proxyIs.read(response);
+        if (response[0] != 0x05 || response[1] != 0x00) {
+            throw new SocksConnectionException();
+        }
         byte[] dest = destination.getBytes();
         ByteBuffer request = ByteBuffer.allocate(7 + dest.length);
         request.put(new byte[]{0x05, 0x01, 0x00, 0x03});
@@ -32,6 +35,15 @@ public class SocksSocketFactory {
         }
     }
 
+    public static boolean contains(byte needle, byte[] haystack) {
+        for(byte hay : haystack) {
+            if (hay == needle) {
+                return true;
+            }
+        }
+        return false;
+    }
+
     public static Socket createSocket(InetSocketAddress address, String destination, int port) throws IOException {
         Socket socket = new Socket();
         try {