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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.os.Handler;
     20 import java.security.PrivateKey;
     21 import java.security.cert.CertificateEncodingException;
     22 import java.security.cert.X509Certificate;
     23 import org.apache.harmony.xnet.provider.jsse.NativeCrypto;
     24 import org.apache.harmony.xnet.provider.jsse.OpenSSLKey;
     25 import org.apache.harmony.xnet.provider.jsse.OpenSSLKeyHolder;
     26 
     27 /**
     28  * ClientCertRequestHandler: class responsible for handling client
     29  * certificate requests.  This class is passed as a parameter to
     30  * BrowserCallback.displayClientCertRequestDialog and is meant to
     31  * receive the user's response.
     32  *
     33  * @hide
     34  */
     35 public final class ClientCertRequestHandler extends Handler {
     36 
     37     private final BrowserFrame mBrowserFrame;
     38     private final int mHandle;
     39     private final String mHostAndPort;
     40     private final SslClientCertLookupTable mTable;
     41     ClientCertRequestHandler(BrowserFrame browserFrame,
     42                              int handle,
     43                              String host_and_port,
     44                              SslClientCertLookupTable table) {
     45         mBrowserFrame = browserFrame;
     46         mHandle = handle;
     47         mHostAndPort = host_and_port;
     48         mTable = table;
     49     }
     50 
     51     /**
     52      * Proceed with the specified private key and client certificate chain.
     53      */
     54     public void proceed(PrivateKey privateKey, X509Certificate[] chain) {
     55         try {
     56             byte[][] chainBytes = NativeCrypto.encodeCertificates(chain);
     57             mTable.Allow(mHostAndPort, privateKey, chainBytes);
     58 
     59             if (privateKey instanceof OpenSSLKeyHolder) {
     60                 OpenSSLKey pkey = ((OpenSSLKeyHolder) privateKey).getOpenSSLKey();
     61                 setSslClientCertFromCtx(pkey.getPkeyContext(), chainBytes);
     62             } else {
     63                 setSslClientCertFromPKCS8(privateKey.getEncoded(), chainBytes);
     64             }
     65         } catch (CertificateEncodingException e) {
     66             post(new Runnable() {
     67                     public void run() {
     68                         mBrowserFrame.nativeSslClientCert(mHandle, 0, null);
     69                         return;
     70                     }
     71                 });
     72         }
     73     }
     74 
     75     /**
     76      * Proceed with the specified private key bytes and client certificate chain.
     77      */
     78     private void setSslClientCertFromCtx(final long ctx, final byte[][] chainBytes) {
     79         post(new Runnable() {
     80                 public void run() {
     81                     mBrowserFrame.nativeSslClientCert(mHandle, ctx, chainBytes);
     82                 }
     83             });
     84     }
     85 
     86     /**
     87      * Proceed with the specified private key context and client certificate chain.
     88      */
     89     private void setSslClientCertFromPKCS8(final byte[] key, final byte[][] chainBytes) {
     90         post(new Runnable() {
     91                 public void run() {
     92                     mBrowserFrame.nativeSslClientCert(mHandle, key, chainBytes);
     93                 }
     94             });
     95     }
     96 
     97     /**
     98      * Igore the request for now, the user may be prompted again.
     99      */
    100     public void ignore() {
    101         post(new Runnable() {
    102                 public void run() {
    103                     mBrowserFrame.nativeSslClientCert(mHandle, 0, null);
    104                 }
    105             });
    106     }
    107 
    108     /**
    109      * Cancel this request, remember the users negative choice.
    110      */
    111     public void cancel() {
    112         mTable.Deny(mHostAndPort);
    113         post(new Runnable() {
    114                 public void run() {
    115                     mBrowserFrame.nativeSslClientCert(mHandle, 0, null);
    116                 }
    117             });
    118     }
    119 }
    120