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      1 /*
      2  * Copyright (C) 2011 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.webkit;
     18 
     19 import android.content.Context;
     20 import android.os.Handler;
     21 import android.util.Log;
     22 
     23 /**
     24  * KeyStoreHandler: class responsible for certificate installation to
     25  * the system key store. It reads the certificates file from network
     26  * then pass the bytes to class CertTool.
     27  * This class is only needed if the Chromium HTTP stack is used.
     28  */
     29 class KeyStoreHandler extends Handler {
     30     private static final String LOGTAG = "KeyStoreHandler";
     31 
     32     private final ByteArrayBuilder mDataBuilder = new ByteArrayBuilder();
     33 
     34     private String mMimeType;
     35 
     36     public KeyStoreHandler(String mimeType) {
     37       mMimeType = mimeType;
     38     }
     39 
     40     /**
     41      * Add data to the internal collection of data.
     42      * @param data A byte array containing the content.
     43      * @param length The length of data.
     44      */
     45     public void didReceiveData(byte[] data, int length) {
     46         synchronized (mDataBuilder) {
     47             mDataBuilder.append(data, 0, length);
     48         }
     49     }
     50 
     51     public void installCert(Context context) {
     52         String type = CertTool.getCertType(mMimeType);
     53         if (type == null) return;
     54 
     55         // This must be synchronized so that no more data can be added
     56         // after getByteSize returns.
     57         synchronized (mDataBuilder) {
     58             // In the case of downloading certificate, we will save it
     59             // to the KeyStore and stop the current loading so that it
     60             // will not generate a new history page
     61             byte[] cert = new byte[mDataBuilder.getByteSize()];
     62             int offset = 0;
     63             while (true) {
     64                 ByteArrayBuilder.Chunk c = mDataBuilder.getFirstChunk();
     65                 if (c == null) break;
     66 
     67                 if (c.mLength != 0) {
     68                     System.arraycopy(c.mArray, 0, cert, offset, c.mLength);
     69                     offset += c.mLength;
     70                 }
     71                 c.release();
     72             }
     73             CertTool.addCertificate(context, type, cert);
     74             return;
     75         }
     76     }
     77 }
     78