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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.HttpHost;
     25 import org.apache.http.params.BasicHttpParams;
     26 import org.apache.http.params.HttpConnectionParams;
     27 
     28 /**
     29  * A requestConnection connecting to a normal (non secure) http server
     30  */
     31 class HttpConnection extends Connection {
     32 
     33     HttpConnection(Context context, HttpHost host,
     34                    RequestFeeder requestFeeder) {
     35         super(context, host, requestFeeder);
     36     }
     37 
     38     /**
     39      * Opens the connection to a http server
     40      *
     41      * @return the opened low level connection
     42      * @throws IOException if the connection fails for any reason.
     43      */
     44     @Override
     45     AndroidHttpClientConnection openConnection(Request req) throws IOException {
     46 
     47         // Update the certificate info (connection not secure - set to null)
     48         EventHandler eventHandler = req.getEventHandler();
     49         mCertificate = null;
     50         eventHandler.certificate(mCertificate);
     51 
     52         AndroidHttpClientConnection conn = new AndroidHttpClientConnection();
     53         BasicHttpParams params = new BasicHttpParams();
     54         Socket sock = new Socket(mHost.getHostName(), mHost.getPort());
     55         params.setIntParameter(HttpConnectionParams.SOCKET_BUFFER_SIZE, 8192);
     56         conn.bind(sock, params);
     57         return conn;
     58     }
     59 
     60     /**
     61      * Closes the low level connection.
     62      *
     63      * If an exception is thrown then it is assumed that the
     64      * connection will have been closed (to the extent possible)
     65      * anyway and the caller does not need to take any further action.
     66      *
     67      */
     68     void closeConnection() {
     69         try {
     70             if (mHttpClientConnection != null && mHttpClientConnection.isOpen()) {
     71                 mHttpClientConnection.close();
     72             }
     73         } catch (IOException e) {
     74             if (HttpLog.LOGV) HttpLog.v(
     75                     "closeConnection(): failed closing connection " +
     76                     mHost);
     77             e.printStackTrace();
     78         }
     79     }
     80 
     81     /**
     82      * Restart a secure connection suspended waiting for user interaction.
     83      */
     84     void restartConnection(boolean abort) {
     85         // not required for plain http connections
     86     }
     87 
     88     String getScheme() {
     89         return "http";
     90     }
     91 }
     92