1 files changed, 70 insertions, 0 deletions
diff --git a/src/eu/siacs/conversations/xmpp/jingle/SocksConnection.java b/src/eu/siacs/conversations/xmpp/jingle/SocksConnection.java
new file mode 100644
index 000000000..5c36d66ff
--- /dev/null
+++ b/src/eu/siacs/conversations/xmpp/jingle/SocksConnection.java
@@ -0,0 +1,70 @@
+package eu.siacs.conversations.xmpp.jingle;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.Socket;
+import java.net.UnknownHostException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.Arrays;
+
+import eu.siacs.conversations.utils.CryptoHelper;
+
+import android.util.Log;
+
+public class SocksConnection {
+	
+	private JingleConnection jingleConnection;
+	private Socket socket;
+	private String host;
+	private int port;
+	private String destination;
+	
+	public SocksConnection(JingleConnection jingleConnection, String host, int port) {
+		this.jingleConnection = jingleConnection;
+		this.host = host;
+		this.port = port;
+		try {
+			MessageDigest mDigest = MessageDigest.getInstance("SHA-1");
+			StringBuilder destBuilder = new StringBuilder();
+			destBuilder.append(jingleConnection.getSessionId());
+			destBuilder.append(jingleConnection.getInitiator());
+			destBuilder.append(jingleConnection.getResponder());
+			mDigest.reset();
+			Log.d("xmppService","plain destination: "+destBuilder.toString());
+			this.destination = CryptoHelper.bytesToHex(mDigest.digest(destBuilder.toString().getBytes()));
+			Log.d("xmppService","host="+host+", port="+port+", destination: "+destination);
+		} catch (NoSuchAlgorithmException e) {
+			
+		}
+	}
+	
+	public boolean connect() {
+		try {
+			this.socket = new Socket(this.host, this.port);
+			InputStream is = socket.getInputStream();
+			OutputStream os = socket.getOutputStream();
+			byte[] login = {0x05, 0x01, 0x00};
+			byte[] expectedReply = {0x05,0x00};
+			byte[] reply = new byte[2];
+			os.write(login);
+			is.read(reply);
+			if (Arrays.equals(reply, expectedReply)) {
+				String connect = ""+'\u0005'+'\u0001'+'\u0000'+'\u0003'+'\u0028'+this.destination+'\u0000'+'\u0000';
+				os.write(connect.getBytes());
+				byte[] result = new byte[2];
+				is.read(result);
+				int status = result[0];
+				return (status==0);
+			} else {
+				socket.close();
+				return false;
+			}
+		} catch (UnknownHostException e) {
+			return false;
+		} catch (IOException e) {
+			return false;
+		}
+	}
+}