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/*
* Copyright 2015, 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;
import android.content.Context;
import android.os.Handler;
import android.os.Looper;
import android.telecom.PhoneAccountHandle;
import android.telephony.TelephonyManager;
import java.util.Collection;
import java.util.Objects;
/**
* Registers a timeout for a call and disconnects the call when the timeout expires.
*/
final class CreateConnectionTimeout implements Runnable {
private final Context mContext;
private final PhoneAccountRegistrar mPhoneAccountRegistrar;
private final ConnectionServiceWrapper mConnectionService;
private final Call mCall;
private final Handler mHandler = new Handler(Looper.getMainLooper());
private boolean mIsRegistered;
private boolean mIsCallTimedOut;
CreateConnectionTimeout(Context context, PhoneAccountRegistrar phoneAccountRegistrar,
ConnectionServiceWrapper service, Call call) {
mContext = context;
mPhoneAccountRegistrar = phoneAccountRegistrar;
mConnectionService = service;
mCall = call;
}
boolean isTimeoutNeededForCall(Collection<PhoneAccountHandle> accounts,
PhoneAccountHandle currentAccount) {
// Non-emergency calls timeout automatically at the radio layer. No need for a timeout here.
if (!mCall.isEmergencyCall()) {
return false;
}
// If there's no connection manager to fallback on then there's no point in having a
// timeout.
PhoneAccountHandle connectionManager = mPhoneAccountRegistrar.getSimCallManager();
if (!accounts.contains(connectionManager)) {
return false;
}
// No need to add a timeout if the current attempt is over the connection manager.
if (Objects.equals(connectionManager, currentAccount)) {
return false;
}
// Timeout is only supported for SIM call managers that are set by the carrier.
if (!Objects.equals(connectionManager.getComponentName(),
mPhoneAccountRegistrar.getSystemSimCallManagerComponent())) {
Log.d(this, "isTimeoutNeededForCall, not a system sim call manager");
return false;
}
Log.i(this, "isTimeoutNeededForCall, returning true");
return true;
}
void registerTimeout() {
Log.d(this, "registerTimeout");
mIsRegistered = true;
long timeoutLengthMillis = getTimeoutLengthMillis();
if (timeoutLengthMillis <= 0) {
Log.d(this, "registerTimeout, timeout set to %d, skipping", timeoutLengthMillis);
} else {
mHandler.postDelayed(this, timeoutLengthMillis);
}
}
void unregisterTimeout() {
Log.d(this, "unregisterTimeout");
mIsRegistered = false;
mHandler.removeCallbacksAndMessages(null);
}
boolean isCallTimedOut() {
return mIsCallTimedOut;
}
@Override
public void run() {
if (mIsRegistered && isCallBeingPlaced(mCall)) {
Log.i(this, "run, call timed out, calling disconnect");
mIsCallTimedOut = true;
mConnectionService.disconnect(mCall);
}
}
static boolean isCallBeingPlaced(Call call) {
int state = call.getState();
return state == CallState.NEW
|| state == CallState.CONNECTING
|| state == CallState.DIALING;
}
private long getTimeoutLengthMillis() {
// If the radio is off then use a longer timeout. This gives us more time to power on the
// radio.
TelephonyManager telephonyManager =
(TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE);
if (telephonyManager.isRadioOn()) {
return Timeouts.getEmergencyCallTimeoutMillis(mContext.getContentResolver());
} else {
return Timeouts.getEmergencyCallTimeoutRadioOffMillis(
mContext.getContentResolver());
}
}
}
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