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package eu.siacs.conversations.xmpp.jingle;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
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 String jid;
private int port;
private boolean isProxy = false;
private String destination;
private OutputStream outputStream;
private boolean isEstablished = false;
public SocksConnection(JingleConnection jingleConnection, String host,
String jid, int port, String type) {
this.jingleConnection = jingleConnection;
this.host = host;
this.jid = jid;
this.port = port;
this.isProxy = "proxy".equalsIgnoreCase(type);
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();
this.destination = CryptoHelper.bytesToHex(mDigest
.digest(destBuilder.toString().getBytes()));
} catch (NoSuchAlgorithmException e) {
}
}
public void connect(final OnSocksConnection callback) {
new Thread(new Runnable() {
@Override
public void run() {
try {
socket = new Socket(host, port);
InputStream is = socket.getInputStream();
outputStream = socket.getOutputStream();
byte[] login = { 0x05, 0x01, 0x00 };
byte[] expectedReply = { 0x05, 0x00 };
byte[] reply = new byte[2];
outputStream.write(login);
is.read(reply);
if (Arrays.equals(reply, expectedReply)) {
String connect = "" + '\u0005' + '\u0001' + '\u0000' + '\u0003'
+ '\u0028' + destination + '\u0000' + '\u0000';
outputStream.write(connect.getBytes());
byte[] result = new byte[2];
is.read(result);
int status = result[1];
if (status == 0) {
Log.d("xmppService", "established connection with "+host + ":" + port
+ "/" + destination);
isEstablished = true;
callback.established();
} else {
callback.failed();
}
} else {
socket.close();
callback.failed();
}
} catch (UnknownHostException e) {
callback.failed();
} catch (IOException e) {
callback.failed();
}
}
}).start();
}
public void send(final JingleFile file, final OnFileTransmitted callback) {
new Thread(new Runnable() {
@Override
public void run() {
FileInputStream fileInputStream = null;
try {
MessageDigest digest = MessageDigest.getInstance("SHA-1");
digest.reset();
fileInputStream = new FileInputStream(file);
int count;
byte[] buffer = new byte[8192];
while ((count = fileInputStream.read(buffer)) > 0) {
outputStream.write(buffer, 0, count);
digest.update(buffer, 0, count);
}
outputStream.flush();
file.setSha1Sum(CryptoHelper.bytesToHex(digest.digest()));
if (callback!=null) {
callback.onFileTransmitted(file);
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NoSuchAlgorithmException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
if (fileInputStream != null) {
fileInputStream.close();
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}).start();
}
public boolean isProxy() {
return this.isProxy;
}
public String getJid() {
return this.jid;
}
public void disconnect() {
if (this.socket!=null) {
try {
this.socket.close();
Log.d("xmppService","cloesd socket with "+this.host);
} catch (IOException e) {
Log.d("xmppService","error closing socket with "+this.host);
}
}
}
public boolean isEstablished() {
return this.isEstablished;
}
}
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