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      1 /*
      2  * Copyright (C) 2014 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.bluetooth.client.map;
     18 
     19 import android.util.Log;
     20 
     21 
     22 import android.bluetooth.client.map.BluetoothMasClient.CharsetType;
     23 import android.bluetooth.client.map.utils.ObexAppParameters;
     24 
     25 import java.io.ByteArrayOutputStream;
     26 import java.io.IOException;
     27 import java.io.InputStream;
     28 import java.io.UnsupportedEncodingException;
     29 import java.nio.charset.StandardCharsets;
     30 
     31 import javax.obex.ClientSession;
     32 import javax.obex.HeaderSet;
     33 import javax.obex.ResponseCodes;
     34 
     35 final class BluetoothMasRequestGetMessage extends BluetoothMasRequest {
     36 
     37     private static final String TAG = "BluetoothMasRequestGetMessage";
     38 
     39     private static final String TYPE = "x-bt/message";
     40 
     41     private BluetoothMapBmessage mBmessage;
     42 
     43     public BluetoothMasRequestGetMessage(String handle, CharsetType charset, boolean attachment) {
     44 
     45         mHeaderSet.setHeader(HeaderSet.NAME, handle);
     46 
     47         mHeaderSet.setHeader(HeaderSet.TYPE, TYPE);
     48 
     49         ObexAppParameters oap = new ObexAppParameters();
     50 
     51         oap.add(OAP_TAGID_CHARSET, CharsetType.UTF_8.equals(charset) ? CHARSET_UTF8
     52                 : CHARSET_NATIVE);
     53 
     54         oap.add(OAP_TAGID_ATTACHMENT, attachment ? ATTACHMENT_ON : ATTACHMENT_OFF);
     55 
     56         oap.addToHeaderSet(mHeaderSet);
     57     }
     58 
     59     @Override
     60     protected void readResponse(InputStream stream) {
     61 
     62         ByteArrayOutputStream baos = new ByteArrayOutputStream();
     63         byte[] buf = new byte[1024];
     64 
     65         try {
     66             int len;
     67             while ((len = stream.read(buf)) != -1) {
     68                 baos.write(buf, 0, len);
     69             }
     70         } catch (IOException e) {
     71             Log.e(TAG, "I/O exception while reading response", e);
     72         }
     73 
     74         // Convert the input stream using UTF-8 since the attributes in the payload are all encoded
     75         // according to it. The actual message body may need to be transcoded depending on
     76         // charset/encoding defined for body-content.
     77         String bmsg;
     78         try {
     79             bmsg = baos.toString(StandardCharsets.UTF_8.name());
     80         } catch (UnsupportedEncodingException ex) {
     81             Log.e(TAG,
     82                 "Coudn't decode the bmessage with UTF-8. Something must be really messed up.");
     83             return;
     84         }
     85 
     86         mBmessage = BluetoothMapBmessageParser.createBmessage(bmsg);
     87 
     88         if (mBmessage == null) {
     89             mResponseCode = ResponseCodes.OBEX_HTTP_INTERNAL_ERROR;
     90         }
     91     }
     92 
     93     public BluetoothMapBmessage getMessage() {
     94         return mBmessage;
     95     }
     96 
     97     @Override
     98     public void execute(ClientSession session) throws IOException {
     99         executeGet(session);
    100     }
    101 }
    102