mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/SocketHttpClientConnection.java

Wed, 31 Dec 2014 07:22:50 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 07:22:50 +0100
branch
TOR_BUG_3246
changeset 4
fc2d59ddac77
permissions
-rw-r--r--

Correct previous dual key logic pending first delivery installment.

     1 /*
     2  * ====================================================================
     3  * Licensed to the Apache Software Foundation (ASF) under one
     4  * or more contributor license agreements.  See the NOTICE file
     5  * distributed with this work for additional information
     6  * regarding copyright ownership.  The ASF licenses this file
     7  * to you under the Apache License, Version 2.0 (the
     8  * "License"); you may not use this file except in compliance
     9  * with the License.  You may obtain a copy of the License at
    10  *
    11  *   http://www.apache.org/licenses/LICENSE-2.0
    12  *
    13  * Unless required by applicable law or agreed to in writing,
    14  * software distributed under the License is distributed on an
    15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    16  * KIND, either express or implied.  See the License for the
    17  * specific language governing permissions and limitations
    18  * under the License.
    19  * ====================================================================
    20  *
    21  * This software consists of voluntary contributions made by many
    22  * individuals on behalf of the Apache Software Foundation.  For more
    23  * information on the Apache Software Foundation, please see
    24  * <http://www.apache.org/>.
    25  *
    26  */
    28 package ch.boye.httpclientandroidlib.impl;
    30 import java.io.IOException;
    31 import java.net.InetAddress;
    32 import java.net.Socket;
    33 import java.net.SocketException;
    35 import ch.boye.httpclientandroidlib.HttpInetConnection;
    36 import ch.boye.httpclientandroidlib.impl.io.SocketInputBuffer;
    37 import ch.boye.httpclientandroidlib.impl.io.SocketOutputBuffer;
    38 import ch.boye.httpclientandroidlib.io.SessionInputBuffer;
    39 import ch.boye.httpclientandroidlib.io.SessionOutputBuffer;
    40 import ch.boye.httpclientandroidlib.params.HttpConnectionParams;
    41 import ch.boye.httpclientandroidlib.params.HttpParams;
    43 /**
    44  * Implementation of a client-side HTTP connection that can be bound to an
    45  * arbitrary {@link Socket} for receiving data from and transmitting data to
    46  * a remote server.
    47  * <p>
    48  * The following parameters can be used to customize the behavior of this
    49  * class:
    50  * <ul>
    51  *  <li>{@link ch.boye.httpclientandroidlib.params.CoreProtocolPNames#STRICT_TRANSFER_ENCODING}</li>
    52  *  <li>{@link ch.boye.httpclientandroidlib.params.CoreProtocolPNames#HTTP_ELEMENT_CHARSET}</li>
    53  *  <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#SOCKET_BUFFER_SIZE}</li>
    54  *  <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#MAX_LINE_LENGTH}</li>
    55  *  <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#MAX_HEADER_COUNT}</li>
    56  * </ul>
    57  *
    58  * @since 4.0
    59  */
    60 public class SocketHttpClientConnection
    61         extends AbstractHttpClientConnection implements HttpInetConnection {
    63     private volatile boolean open;
    64     private volatile Socket socket = null;
    66     public SocketHttpClientConnection() {
    67         super();
    68     }
    70     protected void assertNotOpen() {
    71         if (this.open) {
    72             throw new IllegalStateException("Connection is already open");
    73         }
    74     }
    76     protected void assertOpen() {
    77         if (!this.open) {
    78             throw new IllegalStateException("Connection is not open");
    79         }
    80     }
    82     /**
    83      * Creates an instance of {@link SocketInputBuffer} to be used for
    84      * receiving data from the given {@link Socket}.
    85      * <p>
    86      * This method can be overridden in a super class in order to provide
    87      * a custom implementation of {@link SessionInputBuffer} interface.
    88      *
    89      * @see SocketInputBuffer#SocketInputBuffer(Socket, int, HttpParams)
    90      *
    91      * @param socket the socket.
    92      * @param buffersize the buffer size.
    93      * @param params HTTP parameters.
    94      * @return session input buffer.
    95      * @throws IOException in case of an I/O error.
    96      */
    97     protected SessionInputBuffer createSessionInputBuffer(
    98             final Socket socket,
    99             int buffersize,
   100             final HttpParams params) throws IOException {
   101         return new SocketInputBuffer(socket, buffersize, params);
   102     }
   104     /**
   105      * Creates an instance of {@link SessionOutputBuffer} to be used for
   106      * sending data to the given {@link Socket}.
   107      * <p>
   108      * This method can be overridden in a super class in order to provide
   109      * a custom implementation of {@link SocketOutputBuffer} interface.
   110      *
   111      * @see SocketOutputBuffer#SocketOutputBuffer(Socket, int, HttpParams)
   112      *
   113      * @param socket the socket.
   114      * @param buffersize the buffer size.
   115      * @param params HTTP parameters.
   116      * @return session output buffer.
   117      * @throws IOException in case of an I/O error.
   118      */
   119     protected SessionOutputBuffer createSessionOutputBuffer(
   120             final Socket socket,
   121             int buffersize,
   122             final HttpParams params) throws IOException {
   123         return new SocketOutputBuffer(socket, buffersize, params);
   124     }
   126     /**
   127      * Binds this connection to the given {@link Socket}. This socket will be
   128      * used by the connection to send and receive data.
   129      * <p>
   130      * This method will invoke {@link #createSessionInputBuffer(Socket, int, HttpParams)}
   131      * and {@link #createSessionOutputBuffer(Socket, int, HttpParams)} methods
   132      * to create session input / output buffers bound to this socket and then
   133      * will invoke {@link #init(SessionInputBuffer, SessionOutputBuffer, HttpParams)}
   134      * method to pass references to those buffers to the underlying HTTP message
   135      * parser and formatter.
   136      * <p>
   137      * After this method's execution the connection status will be reported
   138      * as open and the {@link #isOpen()} will return <code>true</code>.
   139      *
   140      * @param socket the socket.
   141      * @param params HTTP parameters.
   142      * @throws IOException in case of an I/O error.
   143      */
   144     protected void bind(
   145             final Socket socket,
   146             final HttpParams params) throws IOException {
   147         if (socket == null) {
   148             throw new IllegalArgumentException("Socket may not be null");
   149         }
   150         if (params == null) {
   151             throw new IllegalArgumentException("HTTP parameters may not be null");
   152         }
   153         this.socket = socket;
   155         int buffersize = HttpConnectionParams.getSocketBufferSize(params);
   157         init(
   158                 createSessionInputBuffer(socket, buffersize, params),
   159                 createSessionOutputBuffer(socket, buffersize, params),
   160                 params);
   162         this.open = true;
   163     }
   165     public boolean isOpen() {
   166         return this.open;
   167     }
   169     protected Socket getSocket() {
   170         return this.socket;
   171     }
   173     public InetAddress getLocalAddress() {
   174         if (this.socket != null) {
   175             return this.socket.getLocalAddress();
   176         } else {
   177             return null;
   178         }
   179     }
   181     public int getLocalPort() {
   182         if (this.socket != null) {
   183             return this.socket.getLocalPort();
   184         } else {
   185             return -1;
   186         }
   187     }
   189     public InetAddress getRemoteAddress() {
   190         if (this.socket != null) {
   191             return this.socket.getInetAddress();
   192         } else {
   193             return null;
   194         }
   195     }
   197     public int getRemotePort() {
   198         if (this.socket != null) {
   199             return this.socket.getPort();
   200         } else {
   201             return -1;
   202         }
   203     }
   205     public void setSocketTimeout(int timeout) {
   206         assertOpen();
   207         if (this.socket != null) {
   208             try {
   209                 this.socket.setSoTimeout(timeout);
   210             } catch (SocketException ignore) {
   211                 // It is not quite clear from the Sun's documentation if there are any
   212                 // other legitimate cases for a socket exception to be thrown when setting
   213                 // SO_TIMEOUT besides the socket being already closed
   214             }
   215         }
   216     }
   218     public int getSocketTimeout() {
   219         if (this.socket != null) {
   220             try {
   221                 return this.socket.getSoTimeout();
   222             } catch (SocketException ignore) {
   223                 return -1;
   224             }
   225         } else {
   226             return -1;
   227         }
   228     }
   230     public void shutdown() throws IOException {
   231         this.open = false;
   232         Socket tmpsocket = this.socket;
   233         if (tmpsocket != null) {
   234             tmpsocket.close();
   235         }
   236     }
   238     public void close() throws IOException {
   239         if (!this.open) {
   240             return;
   241         }
   242         this.open = false;
   243         Socket sock = this.socket;
   244         try {
   245             doFlush();
   246             try {
   247                 try {
   248                     sock.shutdownOutput();
   249                 } catch (IOException ignore) {
   250                 }
   251                 try {
   252                     sock.shutdownInput();
   253                 } catch (IOException ignore) {
   254                 }
   255             } catch (UnsupportedOperationException ignore) {
   256                 // if one isn't supported, the other one isn't either
   257             }
   258         } finally {
   259             sock.close();
   260         }
   261     }
   263 }

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