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+/*
+ * ====================================================================
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation. For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ *
+ */
+
+package ch.boye.httpclientandroidlib.conn.ssl;
+
+import java.io.IOException;
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.Socket;
+import java.net.UnknownHostException;
+import java.security.KeyManagementException;
+import java.security.KeyStore;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
+import java.security.SecureRandom;
+import java.security.UnrecoverableKeyException;
+
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.SSLSocket;
+
+import ch.boye.httpclientandroidlib.HttpHost;
+import ch.boye.httpclientandroidlib.annotation.ThreadSafe;
+import ch.boye.httpclientandroidlib.conn.ConnectTimeoutException;
+import ch.boye.httpclientandroidlib.conn.HttpInetSocketAddress;
+import ch.boye.httpclientandroidlib.conn.scheme.HostNameResolver;
+import ch.boye.httpclientandroidlib.conn.scheme.LayeredSchemeSocketFactory;
+import ch.boye.httpclientandroidlib.conn.scheme.LayeredSocketFactory;
+import ch.boye.httpclientandroidlib.conn.scheme.SchemeLayeredSocketFactory;
+import ch.boye.httpclientandroidlib.conn.socket.LayeredConnectionSocketFactory;
+import ch.boye.httpclientandroidlib.params.HttpConnectionParams;
+import ch.boye.httpclientandroidlib.params.HttpParams;
+import ch.boye.httpclientandroidlib.protocol.HttpContext;
+import ch.boye.httpclientandroidlib.util.Args;
+import ch.boye.httpclientandroidlib.util.Asserts;
+import ch.boye.httpclientandroidlib.util.TextUtils;
+
+/**
+ * Layered socket factory for TLS/SSL connections.
+ * <p>
+ * SSLSocketFactory can be used to validate the identity of the HTTPS server against a list of
+ * trusted certificates and to authenticate to the HTTPS server using a private key.
+ * <p>
+ * SSLSocketFactory will enable server authentication when supplied with
+ * a {@link KeyStore trust-store} file containing one or several trusted certificates. The client
+ * secure socket will reject the connection during the SSL session handshake if the target HTTPS
+ * server attempts to authenticate itself with a non-trusted certificate.
+ * <p>
+ * Use JDK keytool utility to import a trusted certificate and generate a trust-store file:
+ * <pre>
+ * keytool -import -alias "my server cert" -file server.crt -keystore my.truststore
+ * </pre>
+ * <p>
+ * In special cases the standard trust verification process can be bypassed by using a custom
+ * {@link TrustStrategy}. This interface is primarily intended for allowing self-signed
+ * certificates to be accepted as trusted without having to add them to the trust-store file.
+ * <p>
+ * SSLSocketFactory will enable client authentication when supplied with
+ * a {@link KeyStore key-store} file containing a private key/public certificate
+ * pair. The client secure socket will use the private key to authenticate
+ * itself to the target HTTPS server during the SSL session handshake if
+ * requested to do so by the server.
+ * The target HTTPS server will in its turn verify the certificate presented
+ * by the client in order to establish client's authenticity.
+ * <p>
+ * Use the following sequence of actions to generate a key-store file
+ * </p>
+ * <ul>
+ * <li>
+ * <p>
+ * Use JDK keytool utility to generate a new key
+ * <pre>keytool -genkey -v -alias "my client key" -validity 365 -keystore my.keystore</pre>
+ * For simplicity use the same password for the key as that of the key-store
+ * </p>
+ * </li>
+ * <li>
+ * <p>
+ * Issue a certificate signing request (CSR)
+ * <pre>keytool -certreq -alias "my client key" -file mycertreq.csr -keystore my.keystore</pre>
+ * </p>
+ * </li>
+ * <li>
+ * <p>
+ * Send the certificate request to the trusted Certificate Authority for signature.
+ * One may choose to act as her own CA and sign the certificate request using a PKI
+ * tool, such as OpenSSL.
+ * </p>
+ * </li>
+ * <li>
+ * <p>
+ * Import the trusted CA root certificate
+ * <pre>keytool -import -alias "my trusted ca" -file caroot.crt -keystore my.keystore</pre>
+ * </p>
+ * </li>
+ * <li>
+ * <p>
+ * Import the PKCS#7 file containg the complete certificate chain
+ * <pre>keytool -import -alias "my client key" -file mycert.p7 -keystore my.keystore</pre>
+ * </p>
+ * </li>
+ * <li>
+ * <p>
+ * Verify the content the resultant keystore file
+ * <pre>keytool -list -v -keystore my.keystore</pre>
+ * </p>
+ * </li>
+ * </ul>
+ *
+ * @since 4.0
+ *
+ * @deprecated (4.3) use {@link SSLConnectionSocketFactory}.
+ */
+@ThreadSafe
+@Deprecated
+public class SSLSocketFactory implements LayeredConnectionSocketFactory, SchemeLayeredSocketFactory,
+ LayeredSchemeSocketFactory, LayeredSocketFactory {
+
+ public static final String TLS = "TLS";
+ public static final String SSL = "SSL";
+ public static final String SSLV2 = "SSLv2";
+
+ public static final X509HostnameVerifier ALLOW_ALL_HOSTNAME_VERIFIER
+ = new AllowAllHostnameVerifier();
+
+ public static final X509HostnameVerifier BROWSER_COMPATIBLE_HOSTNAME_VERIFIER
+ = new BrowserCompatHostnameVerifier();
+
+ public static final X509HostnameVerifier STRICT_HOSTNAME_VERIFIER
+ = new StrictHostnameVerifier();
+
+ /**
+ * Obtains default SSL socket factory with an SSL context based on the standard JSSE
+ * trust material (<code>cacerts</code> file in the security properties directory).
+ * System properties are not taken into consideration.
+ *
+ * @return default SSL socket factory
+ */
+ public static SSLSocketFactory getSocketFactory() throws SSLInitializationException {
+ return new SSLSocketFactory(
+ SSLContexts.createDefault(),
+ BROWSER_COMPATIBLE_HOSTNAME_VERIFIER);
+ }
+
+ private static String[] split(final String s) {
+ if (TextUtils.isBlank(s)) {
+ return null;
+ }
+ return s.split(" *, *");
+ }
+
+ /**
+ * Obtains default SSL socket factory with an SSL context based on system properties
+ * as described in
+ * <a href="http://docs.oracle.com/javase/1.5.0/docs/guide/security/jsse/JSSERefGuide.html">
+ * "JavaTM Secure Socket Extension (JSSE) Reference Guide for the JavaTM 2 Platform
+ * Standard Edition 5</a>
+ *
+ * @return default system SSL socket factory
+ */
+ public static SSLSocketFactory getSystemSocketFactory() throws SSLInitializationException {
+ return new SSLSocketFactory(
+ (javax.net.ssl.SSLSocketFactory) javax.net.ssl.SSLSocketFactory.getDefault(),
+ split(System.getProperty("https.protocols")),
+ split(System.getProperty("https.cipherSuites")),
+ BROWSER_COMPATIBLE_HOSTNAME_VERIFIER);
+ }
+
+ private final javax.net.ssl.SSLSocketFactory socketfactory;
+ private final HostNameResolver nameResolver;
+ // TODO: make final
+ private volatile X509HostnameVerifier hostnameVerifier;
+ private final String[] supportedProtocols;
+ private final String[] supportedCipherSuites;
+
+ public SSLSocketFactory(
+ final String algorithm,
+ final KeyStore keystore,
+ final String keyPassword,
+ final KeyStore truststore,
+ final SecureRandom random,
+ final HostNameResolver nameResolver)
+ throws NoSuchAlgorithmException, KeyManagementException, KeyStoreException, UnrecoverableKeyException {
+ this(SSLContexts.custom()
+ .useProtocol(algorithm)
+ .setSecureRandom(random)
+ .loadKeyMaterial(keystore, keyPassword != null ? keyPassword.toCharArray() : null)
+ .loadTrustMaterial(truststore)
+ .build(),
+ nameResolver);
+ }
+
+ /**
+ * @since 4.1
+ */
+ public SSLSocketFactory(
+ final String algorithm,
+ final KeyStore keystore,
+ final String keyPassword,
+ final KeyStore truststore,
+ final SecureRandom random,
+ final TrustStrategy trustStrategy,
+ final X509HostnameVerifier hostnameVerifier)
+ throws NoSuchAlgorithmException, KeyManagementException, KeyStoreException, UnrecoverableKeyException {
+ this(SSLContexts.custom()
+ .useProtocol(algorithm)
+ .setSecureRandom(random)
+ .loadKeyMaterial(keystore, keyPassword != null ? keyPassword.toCharArray() : null)
+ .loadTrustMaterial(truststore, trustStrategy)
+ .build(),
+ hostnameVerifier);
+ }
+
+ /**
+ * @since 4.1
+ */
+ public SSLSocketFactory(
+ final String algorithm,
+ final KeyStore keystore,
+ final String keyPassword,
+ final KeyStore truststore,
+ final SecureRandom random,
+ final X509HostnameVerifier hostnameVerifier)
+ throws NoSuchAlgorithmException, KeyManagementException, KeyStoreException, UnrecoverableKeyException {
+ this(SSLContexts.custom()
+ .useProtocol(algorithm)
+ .setSecureRandom(random)
+ .loadKeyMaterial(keystore, keyPassword != null ? keyPassword.toCharArray() : null)
+ .loadTrustMaterial(truststore)
+ .build(),
+ hostnameVerifier);
+ }
+
+ public SSLSocketFactory(
+ final KeyStore keystore,
+ final String keystorePassword,
+ final KeyStore truststore)
+ throws NoSuchAlgorithmException, KeyManagementException, KeyStoreException, UnrecoverableKeyException {
+ this(SSLContexts.custom()
+ .loadKeyMaterial(keystore, keystorePassword != null ? keystorePassword.toCharArray() : null)
+ .loadTrustMaterial(truststore)
+ .build(),
+ BROWSER_COMPATIBLE_HOSTNAME_VERIFIER);
+ }
+
+ public SSLSocketFactory(
+ final KeyStore keystore,
+ final String keystorePassword)
+ throws NoSuchAlgorithmException, KeyManagementException, KeyStoreException, UnrecoverableKeyException{
+ this(SSLContexts.custom()
+ .loadKeyMaterial(keystore, keystorePassword != null ? keystorePassword.toCharArray() : null)
+ .build(),
+ BROWSER_COMPATIBLE_HOSTNAME_VERIFIER);
+ }
+
+ public SSLSocketFactory(
+ final KeyStore truststore)
+ throws NoSuchAlgorithmException, KeyManagementException, KeyStoreException, UnrecoverableKeyException {
+ this(SSLContexts.custom()
+ .loadTrustMaterial(truststore)
+ .build(),
+ BROWSER_COMPATIBLE_HOSTNAME_VERIFIER);
+ }
+
+ /**
+ * @since 4.1
+ */
+ public SSLSocketFactory(
+ final TrustStrategy trustStrategy,
+ final X509HostnameVerifier hostnameVerifier)
+ throws NoSuchAlgorithmException, KeyManagementException, KeyStoreException, UnrecoverableKeyException {
+ this(SSLContexts.custom()
+ .loadTrustMaterial(null, trustStrategy)
+ .build(),
+ hostnameVerifier);
+ }
+
+ /**
+ * @since 4.1
+ */
+ public SSLSocketFactory(
+ final TrustStrategy trustStrategy)
+ throws NoSuchAlgorithmException, KeyManagementException, KeyStoreException, UnrecoverableKeyException {
+ this(SSLContexts.custom()
+ .loadTrustMaterial(null, trustStrategy)
+ .build(),
+ BROWSER_COMPATIBLE_HOSTNAME_VERIFIER);
+ }
+
+ public SSLSocketFactory(final SSLContext sslContext) {
+ this(sslContext, BROWSER_COMPATIBLE_HOSTNAME_VERIFIER);
+ }
+
+ public SSLSocketFactory(
+ final SSLContext sslContext, final HostNameResolver nameResolver) {
+ super();
+ this.socketfactory = sslContext.getSocketFactory();
+ this.hostnameVerifier = BROWSER_COMPATIBLE_HOSTNAME_VERIFIER;
+ this.nameResolver = nameResolver;
+ this.supportedProtocols = null;
+ this.supportedCipherSuites = null;
+ }
+
+ /**
+ * @since 4.1
+ */
+ public SSLSocketFactory(
+ final SSLContext sslContext, final X509HostnameVerifier hostnameVerifier) {
+ this(Args.notNull(sslContext, "SSL context").getSocketFactory(),
+ null, null, hostnameVerifier);
+ }
+
+ /**
+ * @since 4.3
+ */
+ public SSLSocketFactory(
+ final SSLContext sslContext,
+ final String[] supportedProtocols,
+ final String[] supportedCipherSuites,
+ final X509HostnameVerifier hostnameVerifier) {
+ this(Args.notNull(sslContext, "SSL context").getSocketFactory(),
+ supportedProtocols, supportedCipherSuites, hostnameVerifier);
+ }
+
+ /**
+ * @since 4.2
+ */
+ public SSLSocketFactory(
+ final javax.net.ssl.SSLSocketFactory socketfactory,
+ final X509HostnameVerifier hostnameVerifier) {
+ this(socketfactory, null, null, hostnameVerifier);
+ }
+
+ /**
+ * @since 4.3
+ */
+ public SSLSocketFactory(
+ final javax.net.ssl.SSLSocketFactory socketfactory,
+ final String[] supportedProtocols,
+ final String[] supportedCipherSuites,
+ final X509HostnameVerifier hostnameVerifier) {
+ this.socketfactory = Args.notNull(socketfactory, "SSL socket factory");
+ this.supportedProtocols = supportedProtocols;
+ this.supportedCipherSuites = supportedCipherSuites;
+ this.hostnameVerifier = hostnameVerifier != null ? hostnameVerifier : BROWSER_COMPATIBLE_HOSTNAME_VERIFIER;
+ this.nameResolver = null;
+ }
+
+ /**
+ * @param params Optional parameters. Parameters passed to this method will have no effect.
+ * This method will create a unconnected instance of {@link Socket} class.
+ * @since 4.1
+ */
+ public Socket createSocket(final HttpParams params) throws IOException {
+ return createSocket((HttpContext) null);
+ }
+
+ public Socket createSocket() throws IOException {
+ return createSocket((HttpContext) null);
+ }
+
+ /**
+ * @since 4.1
+ */
+ public Socket connectSocket(
+ final Socket socket,
+ final InetSocketAddress remoteAddress,
+ final InetSocketAddress localAddress,
+ final HttpParams params) throws IOException, UnknownHostException, ConnectTimeoutException {
+ Args.notNull(remoteAddress, "Remote address");
+ Args.notNull(params, "HTTP parameters");
+ final HttpHost host;
+ if (remoteAddress instanceof HttpInetSocketAddress) {
+ host = ((HttpInetSocketAddress) remoteAddress).getHttpHost();
+ } else {
+ host = new HttpHost(remoteAddress.getHostName(), remoteAddress.getPort(), "https");
+ }
+ final int socketTimeout = HttpConnectionParams.getSoTimeout(params);
+ final int connectTimeout = HttpConnectionParams.getConnectionTimeout(params);
+ socket.setSoTimeout(socketTimeout);
+ return connectSocket(connectTimeout, socket, host, remoteAddress, localAddress, null);
+ }
+
+ /**
+ * Checks whether a socket connection is secure.
+ * This factory creates TLS/SSL socket connections
+ * which, by default, are considered secure.
+ * <br/>
+ * Derived classes may override this method to perform
+ * runtime checks, for example based on the cypher suite.
+ *
+ * @param sock the connected socket
+ *
+ * @return <code>true</code>
+ *
+ * @throws IllegalArgumentException if the argument is invalid
+ */
+ public boolean isSecure(final Socket sock) throws IllegalArgumentException {
+ Args.notNull(sock, "Socket");
+ Asserts.check(sock instanceof SSLSocket, "Socket not created by this factory");
+ Asserts.check(!sock.isClosed(), "Socket is closed");
+ return true;
+ }
+
+ /**
+ * @since 4.2
+ */
+ public Socket createLayeredSocket(
+ final Socket socket,
+ final String host,
+ final int port,
+ final HttpParams params) throws IOException, UnknownHostException {
+ return createLayeredSocket(socket, host, port, (HttpContext) null);
+ }
+
+ public Socket createLayeredSocket(
+ final Socket socket,
+ final String host,
+ final int port,
+ final boolean autoClose) throws IOException, UnknownHostException {
+ return createLayeredSocket(socket, host, port, (HttpContext) null);
+ }
+
+ public void setHostnameVerifier(final X509HostnameVerifier hostnameVerifier) {
+ Args.notNull(hostnameVerifier, "Hostname verifier");
+ this.hostnameVerifier = hostnameVerifier;
+ }
+
+ public X509HostnameVerifier getHostnameVerifier() {
+ return this.hostnameVerifier;
+ }
+
+ public Socket connectSocket(
+ final Socket socket,
+ final String host, final int port,
+ final InetAddress local, final int localPort,
+ final HttpParams params) throws IOException, UnknownHostException, ConnectTimeoutException {
+ final InetAddress remote;
+ if (this.nameResolver != null) {
+ remote = this.nameResolver.resolve(host);
+ } else {
+ remote = InetAddress.getByName(host);
+ }
+ InetSocketAddress localAddress = null;
+ if (local != null || localPort > 0) {
+ localAddress = new InetSocketAddress(local, localPort > 0 ? localPort : 0);
+ }
+ final InetSocketAddress remoteAddress = new HttpInetSocketAddress(
+ new HttpHost(host, port), remote, port);
+ return connectSocket(socket, remoteAddress, localAddress, params);
+ }
+
+ public Socket createSocket(
+ final Socket socket,
+ final String host, final int port,
+ final boolean autoClose) throws IOException, UnknownHostException {
+ return createLayeredSocket(socket, host, port, autoClose);
+ }
+
+ /**
+ * Performs any custom initialization for a newly created SSLSocket
+ * (before the SSL handshake happens).
+ *
+ * The default implementation is a no-op, but could be overridden to, e.g.,
+ * call {@link SSLSocket#setEnabledCipherSuites(java.lang.String[])}.
+ *
+ * @since 4.2
+ */
+ protected void prepareSocket(final SSLSocket socket) throws IOException {
+ }
+
+ private void internalPrepareSocket(final SSLSocket socket) throws IOException {
+ if (supportedProtocols != null) {
+ socket.setEnabledProtocols(supportedProtocols);
+ }
+ if (supportedCipherSuites != null) {
+ socket.setEnabledCipherSuites(supportedCipherSuites);
+ }
+ prepareSocket(socket);
+ }
+
+ public Socket createSocket(final HttpContext context) throws IOException {
+ final SSLSocket sock = (SSLSocket) this.socketfactory.createSocket();
+ internalPrepareSocket(sock);
+ return sock;
+ }
+
+ public Socket connectSocket(
+ final int connectTimeout,
+ final Socket socket,
+ final HttpHost host,
+ final InetSocketAddress remoteAddress,
+ final InetSocketAddress localAddress,
+ final HttpContext context) throws IOException {
+ Args.notNull(host, "HTTP host");
+ Args.notNull(remoteAddress, "Remote address");
+ final Socket sock = socket != null ? socket : createSocket(context);
+ if (localAddress != null) {
+ sock.bind(localAddress);
+ }
+ try {
+ sock.connect(remoteAddress, connectTimeout);
+ } catch (final IOException ex) {
+ try {
+ sock.close();
+ } catch (final IOException ignore) {
+ }
+ throw ex;
+ }
+ // Setup SSL layering if necessary
+ if (sock instanceof SSLSocket) {
+ final SSLSocket sslsock = (SSLSocket) sock;
+ sslsock.startHandshake();
+ verifyHostname(sslsock, host.getHostName());
+ return sock;
+ } else {
+ return createLayeredSocket(sock, host.getHostName(), remoteAddress.getPort(), context);
+ }
+ }
+
+ public Socket createLayeredSocket(
+ final Socket socket,
+ final String target,
+ final int port,
+ final HttpContext context) throws IOException {
+ final SSLSocket sslsock = (SSLSocket) this.socketfactory.createSocket(
+ socket,
+ target,
+ port,
+ true);
+ internalPrepareSocket(sslsock);
+ sslsock.startHandshake();
+ verifyHostname(sslsock, target);
+ return sslsock;
+ }
+
+ private void verifyHostname(final SSLSocket sslsock, final String hostname) throws IOException {
+ try {
+ this.hostnameVerifier.verify(hostname, sslsock);
+ // verifyHostName() didn't blowup - good!
+ } catch (final IOException iox) {
+ // close the socket before re-throwing the exception
+ try { sslsock.close(); } catch (final Exception x) { /*ignore*/ }
+ throw iox;
+ }
+ }
+
+}