1 /*
2  * Copyright (C) 201 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 com.android.browser;
18 
19 import android.content.Context;
20 import android.os.AsyncTask;
21 import android.security.KeyChain;
22 import android.security.KeyChainException;
23 import android.webkit.ClientCertRequest;
24 import java.security.PrivateKey;
25 import java.security.cert.X509Certificate;
26 
27 final class KeyChainLookup extends AsyncTask<Void, Void, Void> {
28     private final Context mContext;
29     private final ClientCertRequest mHandler;
30     private final String mAlias;
KeyChainLookup(Context context, ClientCertRequest handler, String alias)31     KeyChainLookup(Context context, ClientCertRequest handler, String alias) {
32         mContext = context.getApplicationContext();
33         mHandler = handler;
34         mAlias = alias;
35     }
doInBackground(Void... params)36     @Override protected Void doInBackground(Void... params) {
37         PrivateKey privateKey;
38         X509Certificate[] certificateChain;
39         try {
40             privateKey = KeyChain.getPrivateKey(mContext, mAlias);
41             certificateChain = KeyChain.getCertificateChain(mContext, mAlias);
42         } catch (InterruptedException e) {
43             mHandler.ignore();
44             return null;
45         } catch (KeyChainException e) {
46             mHandler.ignore();
47             return null;
48         }
49         mHandler.proceed(privateKey, certificateChain);
50         return null;
51     }
52 }
53