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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.OpenSSLDSAPrivateKey;
     25 import org.apache.harmony.xnet.provider.jsse.OpenSSLRSAPrivateKey;
     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 OpenSSLRSAPrivateKey) {
     60                 setSslClientCertFromCtx(((OpenSSLRSAPrivateKey)privateKey).getPkeyContext(),
     61                            chainBytes);
     62             } else if (privateKey instanceof OpenSSLDSAPrivateKey) {
     63                 setSslClientCertFromCtx(((OpenSSLDSAPrivateKey)privateKey).getPkeyContext(),
     64                            chainBytes);
     65             } else {
     66                 setSslClientCertFromPKCS8(privateKey.getEncoded(),chainBytes);
     67             }
     68         } catch (CertificateEncodingException e) {
     69             post(new Runnable() {
     70                     public void run() {
     71                         mBrowserFrame.nativeSslClientCert(mHandle, 0, null);
     72                         return;
     73                     }
     74                 });
     75         }
     76     }
     77 
     78     /**
     79      * Proceed with the specified private key bytes and client certificate chain.
     80      */
     81     private void setSslClientCertFromCtx(final int ctx, final byte[][] chainBytes) {
     82         post(new Runnable() {
     83                 public void run() {
     84                     mBrowserFrame.nativeSslClientCert(mHandle, ctx, chainBytes);
     85                 }
     86             });
     87     }
     88 
     89     /**
     90      * Proceed with the specified private key context and client certificate chain.
     91      */
     92     private void setSslClientCertFromPKCS8(final byte[] key, final byte[][] chainBytes) {
     93         post(new Runnable() {
     94                 public void run() {
     95                     mBrowserFrame.nativeSslClientCert(mHandle, key, chainBytes);
     96                 }
     97             });
     98     }
     99 
    100     /**
    101      * Igore the request for now, the user may be prompted again.
    102      */
    103     public void ignore() {
    104         post(new Runnable() {
    105                 public void run() {
    106                     mBrowserFrame.nativeSslClientCert(mHandle, 0, null);
    107                 }
    108             });
    109     }
    110 
    111     /**
    112      * Cancel this request, remember the users negative choice.
    113      */
    114     public void cancel() {
    115         mTable.Deny(mHostAndPort);
    116         post(new Runnable() {
    117                 public void run() {
    118                     mBrowserFrame.nativeSslClientCert(mHandle, 0, null);
    119                 }
    120             });
    121     }
    122 }
    123