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/*
* Copyright (C) 2011 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.emailcommon.utility;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.security.KeyChain;
import android.security.KeyChainAliasCallback;
/**
* A headless Activity which simply calls into the framework {@link KeyChain} service to select
* a certificate to use for establishing secure connections in the Email app.
*/
public class CertificateRequestor extends Activity implements KeyChainAliasCallback {
public static final String EXTRA_HOST = "CertificateRequestor.host";
public static final String EXTRA_PORT = "CertificateRequestor.port";
public static final String RESULT_ALIAS = "CertificateRequestor.alias";
public static final Uri CERTIFICATE_REQUEST_URI =
Uri.parse("eas://com.android.emailcommon/certrequest");
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent i = getIntent();
String host = i.getStringExtra(EXTRA_HOST);
int port = i.getIntExtra(EXTRA_PORT, -1);
if (savedInstanceState == null) {
KeyChain.choosePrivateKeyAlias(
this, this,
null /* keytypes */, null /* issuers */,
host, port,
null /* alias */);
}
}
/**
* Callback for the certificate request. Does not happen on the UI thread.
*/
@Override
public void alias(String alias) {
if (alias == null) {
setResult(RESULT_CANCELED);
} else {
Intent data = new Intent();
data.putExtra(RESULT_ALIAS, alias);
setResult(RESULT_OK, data);
}
finish();
}
}
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