Java tutorial
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For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. * */ package com.owncloud.android.authenticator; import java.io.IOException; import java.net.InetAddress; import java.net.InetSocketAddress; import java.net.Socket; import java.net.SocketAddress; import java.net.UnknownHostException; import javax.net.SocketFactory; import javax.net.ssl.SSLContext; import javax.net.ssl.TrustManager; import org.apache.commons.httpclient.ConnectTimeoutException; import org.apache.commons.httpclient.HttpClientError; import org.apache.commons.httpclient.params.HttpConnectionParams; import org.apache.commons.httpclient.protocol.ProtocolSocketFactory; import org.apache.commons.httpclient.protocol.SecureProtocolSocketFactory; import android.util.Log; /** * <p> * EasySSLProtocolSocketFactory can be used to creats SSL {@link Socket}s that * accept self-signed certificates. * </p> * <p> * This socket factory SHOULD NOT be used for productive systems due to security * reasons, unless it is a concious decision and you are perfectly aware of * security implications of accepting self-signed certificates * </p> * * <p> * Example of using custom protocol socket factory for a specific host: * * <pre> * Protocol easyhttps = new Protocol("https", new EasySSLProtocolSocketFactory(), * 443); * * URI uri = new URI("https://localhost/", true); * // use relative url only * GetMethod httpget = new GetMethod(uri.getPathQuery()); * HostConfiguration hc = new HostConfiguration(); * hc.setHost(uri.getHost(), uri.getPort(), easyhttps); * HttpClient client = new HttpClient(); * client.executeMethod(hc, httpget); * </pre> * * </p> * <p> * Example of using custom protocol socket factory per default instead of the * standard one: * * <pre> * Protocol easyhttps = new Protocol("https", new EasySSLProtocolSocketFactory(), * 443); * Protocol.registerProtocol("https", easyhttps); * * HttpClient client = new HttpClient(); * GetMethod httpget = new GetMethod("https://localhost/"); * client.executeMethod(httpget); * </pre> * * </p> * * @author <a href="mailto:oleg -at- ural.ru">Oleg Kalnichevski</a> * * <p> * DISCLAIMER: HttpClient developers DO NOT actively support this * component. The component is provided as a reference material, which * may be inappropriate for use without additional customization. * </p> */ public class EasySSLSocketFactory implements ProtocolSocketFactory { private static final String TAG = "EasySSLSocketFactory"; private SSLContext sslcontext = null; /** * Constructor for EasySSLProtocolSocketFactory. */ public EasySSLSocketFactory() { super(); } private static SSLContext createEasySSLContext() { Log.d(TAG, "Creating Easy SSL Context"); try { SSLContext context = SSLContext.getInstance("TLS"); context.init(null, new TrustManager[] { new EasyX509TrustManager(null) }, null); return context; } catch (Exception er) { Log.e(TAG, er.getMessage() + ""); throw new HttpClientError(er.toString()); } } private SSLContext getSSLContext() { Log.d(TAG, "Getting Easy SSL Context"); if (this.sslcontext == null) { this.sslcontext = createEasySSLContext(); } return this.sslcontext; } /** * @see SecureProtocolSocketFactory#createSocket(java.lang.String,int,java.net.InetAddress,int) */ public Socket createSocket(String host, int port, InetAddress clientHost, int clientPort) throws IOException, UnknownHostException { Log.d(TAG, "Creating SSL Socket with remote " + host + ":" + port + ", client " + clientHost + ":" + clientPort); return getSSLContext().getSocketFactory().createSocket(host, port, clientHost, clientPort); } /** * Attempts to get a new socket connection to the given host within the * given time limit. * <p> * To circumvent the limitations of older JREs that do not support connect * timeout a controller thread is executed. The controller thread attempts * to create a new socket within the given limit of time. If socket * constructor does not return until the timeout expires, the controller * terminates and throws an {@link ConnectTimeoutException} * </p> * * @param host the host name/IP * @param port the port on the host * @param clientHost the local host name/IP to bind the socket to * @param clientPort the port on the local machine * @param params {@link HttpConnectionParams Http connection parameters} * * @return Socket a new socket * * @throws IOException if an I/O error occurs while creating the socket * @throws UnknownHostException if the IP address of the host cannot be * determined */ public Socket createSocket(final String host, final int port, final InetAddress localAddress, final int localPort, final HttpConnectionParams params) throws IOException, UnknownHostException, ConnectTimeoutException { Log.d(TAG, "Creating SSL Socket with remote " + host + ":" + port + ", local " + localAddress + ":" + localPort + ", params: " + params); if (params == null) { throw new IllegalArgumentException("Parameters may not be null"); } int timeout = params.getConnectionTimeout(); SocketFactory socketfactory = getSSLContext().getSocketFactory(); /*if (timeout == 0) { Log.d(TAG, " ... with connection timeout 0 and socket timeout " + params.getSoTimeout()); Socket socket = socketfactory.createSocket(host, port, localAddress, localPort); socket.setSoTimeout(params.getSoTimeout()); return socket; } else {*/ Log.d(TAG, " ... with connection timeout " + timeout + " and socket timeout " + params.getSoTimeout()); Socket socket = socketfactory.createSocket(); SocketAddress localaddr = new InetSocketAddress(localAddress, localPort); SocketAddress remoteaddr = new InetSocketAddress(host, port); socket.setSoTimeout(params.getSoTimeout()); socket.bind(localaddr); socket.connect(remoteaddr, timeout); return socket; //} } /** * @see SecureProtocolSocketFactory#createSocket(java.lang.String,int) */ public Socket createSocket(String host, int port) throws IOException, UnknownHostException { Log.d(TAG, "Creating SSL Socket with remote " + host + ":" + port); return getSSLContext().getSocketFactory().createSocket(host, port); } /** * @see SecureProtocolSocketFactory#createSocket(java.net.Socket,java.lang.String,int,boolean) */ public Socket createSocket(Socket socket, String host, int port, boolean autoClose) throws IOException, UnknownHostException { Log.d(TAG, "Creating SSL Socket from other shocket " + socket + " to remote " + host + ":" + port); return getSSLContext().getSocketFactory().createSocket(socket, host, port, autoClose); } public boolean equals(Object obj) { return ((obj != null) && obj.getClass().equals(EasySSLSocketFactory.class)); } public int hashCode() { return EasySSLSocketFactory.class.hashCode(); } }