| /* |
| * Copyright (C) 2017 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.timezone; |
| |
| import com.android.server.EventLogTags; |
| |
| import android.app.timezone.RulesUpdaterContract; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.os.PatternMatcher; |
| import android.os.UserHandle; |
| import android.util.Slog; |
| |
| /** |
| * The bona fide implementation of {@link PackageTrackerIntentHelper}. |
| */ |
| final class PackageTrackerIntentHelperImpl implements PackageTrackerIntentHelper { |
| |
| private final static String TAG = "timezone.PackageTrackerIntentHelperImpl"; |
| |
| private final Context mContext; |
| private String mUpdaterAppPackageName; |
| |
| PackageTrackerIntentHelperImpl(Context context) { |
| mContext = context; |
| } |
| |
| @Override |
| public void initialize(String updaterAppPackageName, String dataAppPackageName, |
| PackageTracker packageTracker) { |
| mUpdaterAppPackageName = updaterAppPackageName; |
| |
| // Register for events of interest. |
| |
| // The intent filter that triggers when package update events happen that indicate there may |
| // be work to do. |
| IntentFilter packageIntentFilter = new IntentFilter(); |
| |
| packageIntentFilter.addDataScheme("package"); |
| packageIntentFilter.addDataSchemeSpecificPart( |
| updaterAppPackageName, PatternMatcher.PATTERN_LITERAL); |
| packageIntentFilter.addDataSchemeSpecificPart( |
| dataAppPackageName, PatternMatcher.PATTERN_LITERAL); |
| |
| // ACTION_PACKAGE_ADDED is fired when a package is upgraded or downgraded (in addition to |
| // ACTION_PACKAGE_REMOVED and ACTION_PACKAGE_REPLACED). A system/priv-app can never be |
| // removed entirely so we do not need to trigger on ACTION_PACKAGE_REMOVED or |
| // ACTION_PACKAGE_FULLY_REMOVED. |
| packageIntentFilter.addAction(Intent.ACTION_PACKAGE_ADDED); |
| |
| // ACTION_PACKAGE_CHANGED is used when a package is disabled / re-enabled. It is not |
| // strictly necessary to trigger on this but it won't hurt anything and may catch some cases |
| // where a package has changed while disabled. |
| // Note: ACTION_PACKAGE_CHANGED is not fired when updating a suspended app, but |
| // ACTION_PACKAGE_ADDED, ACTION_PACKAGE_REMOVED and ACTION_PACKAGE_REPLACED are (and the app |
| // is left in an unsuspended state after this). |
| packageIntentFilter.addAction(Intent.ACTION_PACKAGE_CHANGED); |
| |
| // We do not register for ACTION_PACKAGE_RESTARTED because it doesn't imply an update. |
| // We do not register for ACTION_PACKAGE_DATA_CLEARED because the updater / data apps are |
| // not expected to need local data. |
| |
| Receiver packageUpdateReceiver = new Receiver(packageTracker); |
| mContext.registerReceiverAsUser( |
| packageUpdateReceiver, UserHandle.SYSTEM, packageIntentFilter, |
| null /* broadcastPermission */, null /* default handler */); |
| } |
| |
| /** Sends an intent to trigger an update check. */ |
| @Override |
| public void sendTriggerUpdateCheck(CheckToken checkToken) { |
| RulesUpdaterContract.sendBroadcast( |
| mContext, mUpdaterAppPackageName, checkToken.toByteArray()); |
| EventLogTags.writeTimezoneTriggerCheck(checkToken.toString()); |
| } |
| |
| @Override |
| public synchronized void scheduleReliabilityTrigger(long minimumDelayMillis) { |
| TimeZoneUpdateIdler.schedule(mContext, minimumDelayMillis); |
| } |
| |
| @Override |
| public synchronized void unscheduleReliabilityTrigger() { |
| TimeZoneUpdateIdler.unschedule(mContext); |
| } |
| |
| private static class Receiver extends BroadcastReceiver { |
| private final PackageTracker mPackageTracker; |
| |
| private Receiver(PackageTracker packageTracker) { |
| mPackageTracker = packageTracker; |
| } |
| |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| Slog.d(TAG, "Received intent: " + intent.toString()); |
| mPackageTracker.triggerUpdateIfNeeded(true /* packageChanged */); |
| } |
| } |
| } |