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SSLExample.java
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package se.hvornum.dex;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.X509Certificate;
import javax.net.SocketFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private SSLSocket socket;
private static final int SERVERPORT = 1337;
private static final String SERVER_IP = "46.21.102.81";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new Thread(new ClientThread()).start();
}
/**
* A native method that is implemented by the 'native-lib' native library,
* which is packaged with this application.
*/
public native String stringFromJNI();
// Used to load the 'native-lib' library on application startup.
static {
System.loadLibrary("native-lib");
}
@Override
public void onClick(View v) {
try {
PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())), true);
out.println("test");
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
//Your Logic
}
TrustManager[] myTrustManagerArray = new TrustManager[]{new TrustEveryoneManager()};
class TrustEveryoneManager implements X509TrustManager {
// This effectively trusts all certs, DO NOT USE THIS CODE IN PRODUCTION
// TODO, BUG, ERROR
public void checkClientTrusted(X509Certificate[] arg0, String arg1){}
public void checkServerTrusted(X509Certificate[] arg0, String arg1){}
public X509Certificate[] getAcceptedIssuers() {
return null;
}
}
class ClientThread implements Runnable {
@Override
public void run() {
try {
InetAddress serverAddr = InetAddress.getByName(SERVER_IP);
SSLContext sc = SSLContext.getInstance("SSL");
sc.init(null, myTrustManagerArray, new java.security.SecureRandom());
SocketFactory sf = sc.getSocketFactory();
SSLSocket socket = (SSLSocket) sf.createSocket(serverAddr, SERVERPORT);
socket.setNeedClientAuth(false);
socket.setKeepAlive(true);
socket.setTcpNoDelay(true);
socket.startHandshake();
SSLSession s = socket.getSession();
} catch (UnknownHostException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
} catch (NoSuchAlgorithmException e1) {
e1.printStackTrace();
} catch (KeyManagementException e1) {
e1.printStackTrace();
}
}
}
}