X-Git-Url: http://git.linex4red.de/pub/Android/ownCloud.git/blobdiff_plain/be22e58b398f6bc6e47ecd1695ababa353e2ba3b..48f13c8adc5c4b9bc4ca96bf13939a7d7cfae562:/src/com/owncloud/android/network/AdvancedSslSocketFactory.java

diff --git a/src/com/owncloud/android/network/AdvancedSslSocketFactory.java b/src/com/owncloud/android/network/AdvancedSslSocketFactory.java
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+/* ownCloud Android client application
+ *   Copyright (C) 2012 Bartek Przybylski
+ *
+ *   This program 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.
+ *
+ *   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+package com.owncloud.android.network;
+
+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.SSLSocket;
+
+import org.apache.commons.httpclient.ConnectTimeoutException;
+import org.apache.commons.httpclient.params.HttpConnectionParams;
+import org.apache.commons.httpclient.protocol.ProtocolSocketFactory;
+import org.apache.commons.httpclient.protocol.SecureProtocolSocketFactory;
+import org.apache.http.conn.ssl.X509HostnameVerifier;
+
+import android.util.Log;
+
+/**
+ * AdvancedSSLProtocolSocketFactory allows to create SSL {@link Socket}s with 
+ * a custom SSLContext and an optional Hostname Verifier.
+ * 
+ * @author David A. Velasco
+ */
+
+public class AdvancedSslSocketFactory implements ProtocolSocketFactory {
+
+    private static final String TAG = AdvancedSslSocketFactory.class.getSimpleName();
+    
+    private SSLContext mSslContext = null;
+    private X509HostnameVerifier mHostnameVerifier;
+
+    /**
+     * Constructor for AdvancedSSLProtocolSocketFactory.
+     */
+    public AdvancedSslSocketFactory(SSLContext sslContext, X509HostnameVerifier hostnameVerifier) {
+        if (sslContext == null)
+            throw new IllegalArgumentException("AdvancedSslSocketFactory can not be created with a null SSLContext");
+        mSslContext = sslContext;
+        mHostnameVerifier = hostnameVerifier;
+    }
+
+    /**
+     * @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 {
+        Socket socket = mSslContext.getSocketFactory().createSocket(host, port, clientHost, clientPort);
+        verifyHostname(host, socket);
+        return socket;
+    }
+
+    
+    /**
+     * Attempts to get a new socket connection to the given host within the
+     * given time limit.
+     * 
+     * @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 = mSslContext.getSocketFactory();
+        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);
+        verifyHostname(host, socket);
+        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);
+        Socket socket = mSslContext.getSocketFactory().createSocket(host, port);
+        verifyHostname(host, socket);
+        return socket; 
+    }
+
+    /**
+     * @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(
+                AdvancedSslSocketFactory.class));
+    }
+
+    public int hashCode() {
+        return AdvancedSslSocketFactory.class.hashCode();
+    }
+
+
+    public X509HostnameVerifier getHostNameVerifier() {
+        return mHostnameVerifier;
+    }
+    
+    
+    public void setHostNameVerifier(X509HostnameVerifier hostnameVerifier) {
+        mHostnameVerifier = hostnameVerifier;
+    }
+    
+    /**
+     * Verifies the host name with the content of the server certificate using the current host name verifier, if some
+     * @param socket
+     */
+    private void verifyHostname(String host, Socket socket) throws IOException {
+        if (mHostnameVerifier != null) {
+            try {
+                mHostnameVerifier.verify(host, (SSLSocket) socket);
+            } catch (IOException iox) {
+                try {
+                    socket.close();
+                } catch (Exception x) {}
+                throw iox;
+            }
+        }
+    }
+    
+}
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