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