The Tor Browser: mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/conn/DefaultClientConnectionOperator.java@6474c204b198 (annotated)

mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/conn/DefaultClientConnectionOperator.java@6474c204b198 (annotated)

mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/conn/DefaultClientConnectionOperator.java

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /*
  * ====================================================================
  * 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.impl.conn;
 import java.io.IOException;
 import java.net.ConnectException;
 import java.net.InetSocketAddress;
 import java.net.Socket;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
 import ch.boye.httpclientandroidlib.androidextra.HttpClientAndroidLog;
 /* LogFactory removed by HttpClient for Android script. */
 import ch.boye.httpclientandroidlib.annotation.ThreadSafe;
 import ch.boye.httpclientandroidlib.HttpHost;
 import ch.boye.httpclientandroidlib.params.HttpParams;
 import ch.boye.httpclientandroidlib.params.HttpConnectionParams;
 import ch.boye.httpclientandroidlib.protocol.HttpContext;
 import ch.boye.httpclientandroidlib.conn.ConnectTimeoutException;
 import ch.boye.httpclientandroidlib.conn.HttpHostConnectException;
 import ch.boye.httpclientandroidlib.conn.OperatedClientConnection;
 import ch.boye.httpclientandroidlib.conn.ClientConnectionOperator;
 import ch.boye.httpclientandroidlib.conn.scheme.LayeredSchemeSocketFactory;
 import ch.boye.httpclientandroidlib.conn.scheme.Scheme;
 import ch.boye.httpclientandroidlib.conn.scheme.SchemeRegistry;
 import ch.boye.httpclientandroidlib.conn.scheme.SchemeSocketFactory;
 /**
  * Default implementation of a {@link ClientConnectionOperator}. It uses a {@link SchemeRegistry}
  * to look up {@link SchemeSocketFactory} objects.
  * <p>
  * This connection operator is multihome network aware and will attempt to retry failed connects
  * against all known IP addresses sequentially until the connect is successful or all known
  * addresses fail to respond. Please note the same
  * {@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#CONNECTION_TIMEOUT} value will be used
  * for each connection attempt, so in the worst case the total elapsed time before timeout
  * can be <code>CONNECTION_TIMEOUT * n</code> where <code>n</code> is the number of IP addresses
  * of the given host. One can disable multihome support by overriding
  * the {@link #resolveHostname(String)} method and returning only one IP address for the given
  * host name.
  * <p>
  * The following parameters can be used to customize the behavior of this
  * class:
  * <ul>
  *  <li>{@link ch.boye.httpclientandroidlib.params.CoreProtocolPNames#HTTP_ELEMENT_CHARSET}</li>
  *  <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#SO_TIMEOUT}</li>
  *  <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#SO_LINGER}</li>
  *  <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#SO_REUSEADDR}</li>
  *  <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#TCP_NODELAY}</li>
  *  <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#SOCKET_BUFFER_SIZE}</li>
  *  <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#CONNECTION_TIMEOUT}</li>
  *  <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#MAX_LINE_LENGTH}</li>
  * </ul>
  *
  * @since 4.0
  */
 @ThreadSafe
 public class DefaultClientConnectionOperator implements ClientConnectionOperator {
     public HttpClientAndroidLog log = new HttpClientAndroidLog(getClass());
     /** The scheme registry for looking up socket factories. */
     protected final SchemeRegistry schemeRegistry; // @ThreadSafe
     /**
      * Creates a new client connection operator for the given scheme registry.
      *
      * @param schemes   the scheme registry
      */
     public DefaultClientConnectionOperator(final SchemeRegistry schemes) {
         if (schemes == null) {
             throw new IllegalArgumentException("Scheme registry amy not be null");
         }
         this.schemeRegistry = schemes;
     }
     public OperatedClientConnection createConnection() {
         return new DefaultClientConnection();
     }
     public void openConnection(
             final OperatedClientConnection conn,
             final HttpHost target,
             final InetAddress local,
             final HttpContext context,
             final HttpParams params) throws IOException {
         if (conn == null) {
             throw new IllegalArgumentException("Connection may not be null");
         }
         if (target == null) {
             throw new IllegalArgumentException("Target host may not be null");
         }
         if (params == null) {
             throw new IllegalArgumentException("Parameters may not be null");
         }
         if (conn.isOpen()) {
             throw new IllegalStateException("Connection must not be open");
         }
         Scheme schm = schemeRegistry.getScheme(target.getSchemeName());
         SchemeSocketFactory sf = schm.getSchemeSocketFactory();
         InetAddress[] addresses = resolveHostname(target.getHostName());
         int port = schm.resolvePort(target.getPort());
         for (int i = 0; i < addresses.length; i++) {
             InetAddress address = addresses[i];
             boolean last = i == addresses.length - 1;
             Socket sock = sf.createSocket(params);
             conn.opening(sock, target);
             InetSocketAddress remoteAddress = new HttpInetSocketAddress(target, address, port);
             InetSocketAddress localAddress = null;
             if (local != null) {
                 localAddress = new InetSocketAddress(local, 0);
             }
             if (this.log.isDebugEnabled()) {
                 this.log.debug("Connecting to " + remoteAddress);
             }
             try {
                 Socket connsock = sf.connectSocket(sock, remoteAddress, localAddress, params);
                 if (sock != connsock) {
                     sock = connsock;
                     conn.opening(sock, target);
                 }
                 prepareSocket(sock, context, params);
                 conn.openCompleted(sf.isSecure(sock), params);
                 return;
             } catch (ConnectException ex) {
                 if (last) {
                     throw new HttpHostConnectException(target, ex);
                 }
             } catch (ConnectTimeoutException ex) {
                 if (last) {
                     throw ex;
                 }
             }
             if (this.log.isDebugEnabled()) {
                 this.log.debug("Connect to " + remoteAddress + " timed out. " +
                         "Connection will be retried using another IP address");
             }
         }
     }
     public void updateSecureConnection(
             final OperatedClientConnection conn,
             final HttpHost target,
             final HttpContext context,
             final HttpParams params) throws IOException {
         if (conn == null) {
             throw new IllegalArgumentException("Connection may not be null");
         }
         if (target == null) {
             throw new IllegalArgumentException("Target host may not be null");
         }
         if (params == null) {
             throw new IllegalArgumentException("Parameters may not be null");
         }
         if (!conn.isOpen()) {
             throw new IllegalStateException("Connection must be open");
         }
         final Scheme schm = schemeRegistry.getScheme(target.getSchemeName());
         if (!(schm.getSchemeSocketFactory() instanceof LayeredSchemeSocketFactory)) {
             throw new IllegalArgumentException
                 ("Target scheme (" + schm.getName() +
                  ") must have layered socket factory.");
         }
         LayeredSchemeSocketFactory lsf = (LayeredSchemeSocketFactory) schm.getSchemeSocketFactory();
         Socket sock;
         try {
             sock = lsf.createLayeredSocket(
                     conn.getSocket(), target.getHostName(), target.getPort(), true);
         } catch (ConnectException ex) {
             throw new HttpHostConnectException(target, ex);
         }
         prepareSocket(sock, context, params);
         conn.update(sock, target, lsf.isSecure(sock), params);
     }
     /**
      * Performs standard initializations on a newly created socket.
      *
      * @param sock      the socket to prepare
      * @param context   the context for the connection
      * @param params    the parameters from which to prepare the socket
      *
      * @throws IOException      in case of an IO problem
      */
     protected void prepareSocket(
             final Socket sock,
             final HttpContext context,
             final HttpParams params) throws IOException {
         sock.setTcpNoDelay(HttpConnectionParams.getTcpNoDelay(params));
         sock.setSoTimeout(HttpConnectionParams.getSoTimeout(params));
         int linger = HttpConnectionParams.getLinger(params);
         if (linger >= 0) {
             sock.setSoLinger(linger > 0, linger);
         }
     }
     /**
      * Resolves the given host name to an array of corresponding IP addresses, based on the
      * configured name service on the system.
      *
      * @param host host name to resolve
      * @return array of IP addresses
      * @exception  UnknownHostException  if no IP address for the host could be determined.
      *
      * @since 4.1
      */
     protected InetAddress[] resolveHostname(final String host) throws UnknownHostException {
         return InetAddress.getAllByName(host);
     }
 }

The Tor Browser / annotate

mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/conn/DefaultClientConnectionOperator.java@6474c204b198 (annotated)

mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/conn/DefaultClientConnectionOperator.java