/*
 * Copyright (C) 201 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.browser;

import android.content.Context;
import android.os.AsyncTask;
import android.security.KeyChain;
import android.security.KeyChainException;
import android.webkit.ClientCertRequestHandler;
import java.security.PrivateKey;
import java.security.cert.X509Certificate;

final class KeyChainLookup extends AsyncTask<Void, Void, Void> {
    private final Context mContext;
    private final ClientCertRequestHandler mHandler;
    private final String mAlias;
    KeyChainLookup(Context context, ClientCertRequestHandler handler, String alias) {
        mContext = context.getApplicationContext();
        mHandler = handler;
        mAlias = alias;
    }
    @Override protected Void doInBackground(Void... params) {
        PrivateKey privateKey;
        X509Certificate[] certificateChain;
        try {
            privateKey = KeyChain.getPrivateKey(mContext, mAlias);
            certificateChain = KeyChain.getCertificateChain(mContext, mAlias);
        } catch (InterruptedException e) {
            mHandler.ignore();
            return null;
        } catch (KeyChainException e) {
            mHandler.ignore();
            return null;
        }
        mHandler.proceed(privateKey, certificateChain);
        return null;
    }
}