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      1 /*
      2  * Copyright (C) 2007 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.net.http;
     18 
     19 import android.content.Context;
     20 
     21 import java.net.Socket;
     22 import java.io.IOException;
     23 
     24 import org.apache.http.HttpClientConnection;
     25 import org.apache.http.HttpHost;
     26 import org.apache.http.impl.DefaultHttpClientConnection;
     27 import org.apache.http.params.BasicHttpParams;
     28 import org.apache.http.params.HttpConnectionParams;
     29 
     30 /**
     31  * A requestConnection connecting to a normal (non secure) http server
     32  *
     33  * {@hide}
     34  */
     35 class HttpConnection extends Connection {
     36 
     37     HttpConnection(Context context, HttpHost host,
     38                    RequestFeeder requestFeeder) {
     39         super(context, host, requestFeeder);
     40     }
     41 
     42     /**
     43      * Opens the connection to a http server
     44      *
     45      * @return the opened low level connection
     46      * @throws IOException if the connection fails for any reason.
     47      */
     48     @Override
     49     AndroidHttpClientConnection openConnection(Request req) throws IOException {
     50 
     51         // Update the certificate info (connection not secure - set to null)
     52         EventHandler eventHandler = req.getEventHandler();
     53         mCertificate = null;
     54         eventHandler.certificate(mCertificate);
     55 
     56         AndroidHttpClientConnection conn = new AndroidHttpClientConnection();
     57         BasicHttpParams params = new BasicHttpParams();
     58         Socket sock = new Socket(mHost.getHostName(), mHost.getPort());
     59         params.setIntParameter(HttpConnectionParams.SOCKET_BUFFER_SIZE, 8192);
     60         conn.bind(sock, params);
     61         return conn;
     62     }
     63 
     64     /**
     65      * Closes the low level connection.
     66      *
     67      * If an exception is thrown then it is assumed that the
     68      * connection will have been closed (to the extent possible)
     69      * anyway and the caller does not need to take any further action.
     70      *
     71      */
     72     void closeConnection() {
     73         try {
     74             if (mHttpClientConnection != null && mHttpClientConnection.isOpen()) {
     75                 mHttpClientConnection.close();
     76             }
     77         } catch (IOException e) {
     78             if (HttpLog.LOGV) HttpLog.v(
     79                     "closeConnection(): failed closing connection " +
     80                     mHost);
     81             e.printStackTrace();
     82         }
     83     }
     84 
     85     /**
     86      * Restart a secure connection suspended waiting for user interaction.
     87      */
     88     void restartConnection(boolean abort) {
     89         // not required for plain http connections
     90     }
     91 
     92     String getScheme() {
     93         return "http";
     94     }
     95 }
     96