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/*
* Copyright (C) 2013 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.server.telecom.components;
import com.android.server.telecom.CallIntentProcessor;
import com.android.server.telecom.TelecomSystem;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.PowerManager;
import android.os.UserHandle;
import android.os.UserManager;
import android.telecom.Log;
import android.telecom.TelecomManager;
// TODO: Needed for move to system service: import com.android.internal.R;
/**
* Activity that handles system CALL actions and forwards them to {@link CallIntentProcessor}.
* Handles all three CALL action types: CALL, CALL_PRIVILEGED, and CALL_EMERGENCY.
*
* Pre-L, the only way apps were were allowed to make outgoing emergency calls was the
* ACTION_CALL_PRIVILEGED action (which requires the system only CALL_PRIVILEGED permission).
*
* In L, any app that has the CALL_PRIVILEGED permission can continue to make outgoing emergency
* calls via ACTION_CALL_PRIVILEGED.
*
* In addition, the default dialer (identified via
* {@link TelecomManager#getDefaultPhoneApp()} will also be granted the ability to
* make emergency outgoing calls using the CALL action. In order to do this, it must call
* startActivityForResult on the CALL intent to allow its package name to be passed to
* {@link UserCallActivity}. Calling startActivity will continue to work on all non-emergency
* numbers just like it did pre-L.
*/
public class UserCallActivity extends Activity implements TelecomSystem.Component {
@Override
protected void onCreate(Bundle bundle) {
super.onCreate(bundle);
PowerManager powerManager = (PowerManager) getSystemService(POWER_SERVICE);
PowerManager.WakeLock wakelock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
"UserCallActivity");
wakelock.acquire();
Log.startSession("UCA.oC");
try {
// TODO: Figure out if there is something to restore from bundle.
// See OutgoingCallBroadcaster in services/Telephony for more.
Intent intent = getIntent();
verifyCallAction(intent);
final UserManager userManager = (UserManager) getSystemService(Context.USER_SERVICE);
final UserHandle userHandle = new UserHandle(userManager.getProcessUserId());
// Once control flow has passed to this activity, it is no longer guaranteed that we can
// accurately determine whether the calling package has the CALL_PHONE runtime permission.
// At this point in time we trust that the ActivityManager has already performed this
// validation before starting this activity.
// Create a new instance of intent to avoid modifying the
// ActivityThread.ActivityClientRecord#intent directly.
// Modifying directly may be a potential risk when relaunching this activity.
new UserCallIntentProcessor(this, userHandle).processIntent(new Intent(intent),
getCallingPackage(), false, true /* hasCallAppOp*/,
false /* isLocalInvocation */);
} finally {
Log.endSession();
wakelock.release();
}
Log.i(this, "onCreate done");
finish();
}
private void verifyCallAction(Intent intent) {
if (getClass().getName().equals(intent.getComponent().getClassName())) {
// If we were launched directly from the CallActivity, not one of its more privileged
// aliases, then make sure that only the non-privileged actions are allowed.
if (!Intent.ACTION_CALL.equals(intent.getAction())) {
Log.w(this, "Attempt to deliver non-CALL action; forcing to CALL");
intent.setAction(Intent.ACTION_CALL);
}
}
}
@Override
public TelecomSystem getTelecomSystem() {
return TelecomSystem.getInstance();
}
}
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