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/*
* Copyright (c) 2015, Motorola Mobility LLC
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - Neither the name of Motorola Mobility nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MOTOROLA MOBILITY LLC BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*/
package com.android.service.ims.presence;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.database.ContentObserver;
import android.net.Uri;
import android.provider.Telephony;
import android.telephony.CarrierConfigManager;
import android.os.IBinder;
import android.os.PersistableBundle;
import android.os.ServiceManager;
import android.os.SystemProperties;
import android.telephony.SubscriptionManager;
import android.telephony.ims.ImsManager;
import android.telephony.ims.ImsRcsManager;
import android.util.Log;
import com.android.ims.internal.Logger;
import com.android.internal.annotations.VisibleForTesting;
/**
* Manages the CapabilityPolling class. Starts capability polling when a SIM card is inserted that
* supports RCS Presence Capability Polling and stops the service otherwise.
*/
public class PollingService extends Service {
private static final Uri UCE_URI = Uri.withAppendedPath(Telephony.SimInfo.CONTENT_URI,
Telephony.SimInfo.COLUMN_IMS_RCS_UCE_ENABLED);
private Logger logger = Logger.getLogger(this.getClass().getName());
private CapabilityPolling mCapabilityPolling = null;
private int mDefaultSubId = SubscriptionManager.INVALID_SUBSCRIPTION_ID;
// not final for testing
private BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
switch (intent.getAction()) {
case CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED: {
checkAndUpdateCapabilityPollStatus();
break;
}
case SubscriptionManager.ACTION_DEFAULT_SUBSCRIPTION_CHANGED: {
handleDefaultSubChanged();
}
}
}
};
private ContentObserver mUceSettingObserver;
private SubscriptionManager.OnSubscriptionsChangedListener mSubChangedListener =
new SubscriptionManager.OnSubscriptionsChangedListener() {
@Override
public void onSubscriptionsChanged() {
handleDefaultSubChanged();
}
};
/**
* Constructor
*/
public PollingService() {
logger.debug("PollingService()");
}
@Override
public void onCreate() {
logger.debug("onCreate()");
PresenceSetting.init(this);
registerBroadcastReceiver();
SubscriptionManager subscriptionManager = getSystemService(SubscriptionManager.class);
// This will always call onSubscriptionsChanged when it is added, which will possibly
// start polling.
subscriptionManager.addOnSubscriptionsChangedListener(getMainExecutor(),
mSubChangedListener);
mUceSettingObserver = new ContentObserver(getMainThreadHandler()) {
@Override
public void onChange(boolean selfChange) {
onChange(selfChange, null /*uri*/);
}
@Override
public void onChange(boolean selfChange, Uri uri) {
logger.print("UCE setting changed, re-evaluating poll service.");
checkAndUpdateCapabilityPollStatus();
}
};
getContentResolver().registerContentObserver(UCE_URI, true /*notifyForDescendants*/,
mUceSettingObserver);
}
/**
* Cleans up when the service is destroyed
*/
@Override
public void onDestroy() {
logger.debug("onDestroy()");
if (mCapabilityPolling != null) {
mCapabilityPolling.stop();
mCapabilityPolling = null;
}
SubscriptionManager subscriptionManager = getSystemService(SubscriptionManager.class);
subscriptionManager.removeOnSubscriptionsChangedListener(mSubChangedListener);
unregisterReceiver(mReceiver);
if (mUceSettingObserver != null) {
getContentResolver().unregisterContentObserver(mUceSettingObserver);
}
super.onDestroy();
}
@Override
public IBinder onBind(Intent intent) {
logger.debug("onBind(), intent: " + intent);
return null;
}
@VisibleForTesting
public void setBroadcastReceiver(BroadcastReceiver r) {
mReceiver = r;
}
private void registerBroadcastReceiver() {
IntentFilter filter = new IntentFilter(CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED);
filter.addAction(SubscriptionManager.ACTION_DEFAULT_SUBSCRIPTION_CHANGED);
registerReceiver(mReceiver, filter);
}
private void handleDefaultSubChanged() {
int defaultSubId = PresenceSetting.getDefaultSubscriptionId();
if (!SubscriptionManager.isValidSubscriptionId(defaultSubId)) {
return;
}
// First, check to see if there is no default set, but there is a saved default sub id.
// this can happen when the phone is rebooted. If the SIM card stays the same, we do not
// want to clear the EAB contact cache and requery every time the phone reboots.
if (!SubscriptionManager.isValidSubscriptionId(mDefaultSubId)) {
int eabContactSubId = SharedPrefUtil.getLastUsedSubscriptionId(this);
if (SubscriptionManager.isValidSubscriptionId(mDefaultSubId)) {
mDefaultSubId = eabContactSubId;
}
}
if (mDefaultSubId == defaultSubId) {
return;
}
mDefaultSubId = defaultSubId;
logger.print("handleDefaultSubChanged: new default= " + defaultSubId);
SharedPrefUtil.saveLastUsedSubscriptionId(this, mDefaultSubId);
if (mCapabilityPolling != null) {
mCapabilityPolling.handleDefaultSubscriptionChanged(defaultSubId);
}
checkAndUpdateCapabilityPollStatus();
}
private void checkAndUpdateCapabilityPollStatus() {
// If the carrier doesn't support RCS Presence, stop polling.
boolean carrierSupport = isRcsSupportedByCarrier();
boolean userEnabled = hasUserEnabledUce();
logger.print("RCS carrier support = " + carrierSupport + ", user enabled = "
+ userEnabled);
if (!carrierSupport || !userEnabled) {
logger.print("RCS UCE Not supported, Stopping CapabilityPolling");
if (mCapabilityPolling != null) {
mCapabilityPolling.stop();
mCapabilityPolling = null;
}
return;
}
// Carrier supports, so start the service if it hasn't already been started.
if (mCapabilityPolling == null) {
logger.info("Starting CapabilityPolling...");
mCapabilityPolling = CapabilityPolling.getInstance(this);
mCapabilityPolling.start();
mCapabilityPolling.handleDefaultSubscriptionChanged(mDefaultSubId);
}
}
private boolean hasUserEnabledUce() {
ImsManager manager = getSystemService(ImsManager.class);
if (manager == null) {
logger.error("hasUserEnabledUce: manager not available.");
return false;
}
try {
ImsRcsManager rcsManager = manager.getImsRcsManager(mDefaultSubId);
return (rcsManager != null) && rcsManager.getUceAdapter().isUceSettingEnabled();
} catch (Exception e) {
logger.error("hasUserEnabledUce: exception = " + e.getMessage());
}
return false;
}
private boolean isRcsSupportedByCarrier() {
CarrierConfigManager configManager = getSystemService(CarrierConfigManager.class);
if (configManager != null) {
PersistableBundle b = configManager.getConfigForSubId(mDefaultSubId);
if (b != null) {
return b.getBoolean(CarrierConfigManager.KEY_USE_RCS_PRESENCE_BOOL, false);
}
}
return true;
}
static boolean isRcsSupportedByDevice() {
String rcsSupported = SystemProperties.get("persist.rcs.supported");
return "1".equals(rcsSupported);
}
}
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