IgnoreTlsSniSocketFactory.java

/*
 * Copyright 2010-2013 Eric Kok et al.
 *
 * Transdroid is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Transdroid is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Transdroid.  If not, see <http://www.gnu.org/licenses/>.
 */
/*
 *	This file is part of Transdroid Torrent Search
 *	<http://code.google.com/p/transdroid-search/>
 *
 *	Transdroid Torrent Search is free software: you can redistribute
 *	it and/or modify it under the terms of the GNU Lesser General
 *	Public License as published by the Free Software Foundation,
 *	either version 3 of the License, or (at your option) any later
 *	version.
 *
 *	Transdroid Torrent Search is distributed in the hope that it will
 *	be useful, but WITHOUT ANY WARRANTY; without even the implied
 *	warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *	See the GNU Lesser General Public License for more details.
 *
 *	You should have received a copy of the GNU Lesser General Public
 *	License along with Transdroid.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.transdroid.util;

import android.annotation.TargetApi;
import android.net.SSLCertificateSocketFactory;
import android.os.Build;

import org.apache.http.conn.scheme.LayeredSocketFactory;
import org.apache.http.params.HttpParams;

import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;

import javax.net.ssl.SSLSocket;
import javax.net.ssl.TrustManager;

public class IgnoreTlsSniSocketFactory implements LayeredSocketFactory {

	@Override
	public Socket connectSocket(Socket s, String host, int port, InetAddress localAddress, int localPort, HttpParams params) throws IOException {
		return null;
	}

	@Override
	public Socket createSocket() throws IOException {
		return null;
	}

	@Override
	public boolean isSecure(Socket s) throws IllegalArgumentException {
		return s instanceof SSLSocket && s.isConnected();
	}

	@Override
	@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
	public Socket createSocket(Socket plainSocket, String host, int port, boolean autoClose) throws IOException {
		if (autoClose) {
			// we don't need the plainSocket
			plainSocket.close();
		}

		SSLCertificateSocketFactory sslSocketFactory = (SSLCertificateSocketFactory) SSLCertificateSocketFactory.getDefault(0);

		// For self-signed certificates use a custom trust manager
		sslSocketFactory.setTrustManagers(new TrustManager[]{new IgnoreSSLTrustManager()});

		// create and connect SSL socket, but don't do hostname/certificate verification yet
		SSLSocket ssl = (SSLSocket) sslSocketFactory.createSocket(InetAddress.getByName(host), port);

		// enable TLSv1.1/1.2 if available
		ssl.setEnabledProtocols(ssl.getSupportedProtocols());

		// set up SNI before the handshake
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
			sslSocketFactory.setHostname(ssl, host);
		} else {
			try {
				java.lang.reflect.Method setHostnameMethod = ssl.getClass().getMethod("setHostname", String.class);
				setHostnameMethod.invoke(ssl, host);
			} catch (Exception e) {
				throw new IOException("SNI not usable: " + e, e);
			}
		}

		return ssl;
	}

}