Neil Fuller | 68f6666 | 2017-03-16 18:32:21 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.server.timezone; |
| 18 | |
Neil Fuller | d857f67 | 2017-07-20 11:00:35 +0100 | [diff] [blame] | 19 | import com.android.server.EventLogTags; |
| 20 | |
Neil Fuller | 68f6666 | 2017-03-16 18:32:21 +0000 | [diff] [blame] | 21 | import android.app.timezone.RulesUpdaterContract; |
| 22 | import android.content.BroadcastReceiver; |
| 23 | import android.content.Context; |
| 24 | import android.content.Intent; |
| 25 | import android.content.IntentFilter; |
| 26 | import android.os.PatternMatcher; |
Neil Fuller | 1281f39 | 2017-09-22 15:32:06 +0100 | [diff] [blame] | 27 | import android.os.UserHandle; |
Neil Fuller | 68f6666 | 2017-03-16 18:32:21 +0000 | [diff] [blame] | 28 | import android.util.Slog; |
| 29 | |
Neil Fuller | 68f6666 | 2017-03-16 18:32:21 +0000 | [diff] [blame] | 30 | /** |
| 31 | * The bona fide implementation of {@link IntentHelper}. |
| 32 | */ |
| 33 | final class IntentHelperImpl implements IntentHelper { |
| 34 | |
| 35 | private final static String TAG = "timezone.IntentHelperImpl"; |
| 36 | |
| 37 | private final Context mContext; |
| 38 | private String mUpdaterAppPackageName; |
| 39 | |
Neil Fuller | 68f6666 | 2017-03-16 18:32:21 +0000 | [diff] [blame] | 40 | IntentHelperImpl(Context context) { |
| 41 | mContext = context; |
| 42 | } |
| 43 | |
| 44 | @Override |
Neil Fuller | cd1a109 | 2017-09-13 21:59:59 +0100 | [diff] [blame] | 45 | public void initialize(String updaterAppPackageName, String dataAppPackageName, |
| 46 | PackageTracker packageTracker) { |
Neil Fuller | 68f6666 | 2017-03-16 18:32:21 +0000 | [diff] [blame] | 47 | mUpdaterAppPackageName = updaterAppPackageName; |
| 48 | |
| 49 | // Register for events of interest. |
| 50 | |
| 51 | // The intent filter that triggers when package update events happen that indicate there may |
| 52 | // be work to do. |
| 53 | IntentFilter packageIntentFilter = new IntentFilter(); |
Neil Fuller | 228dc6c | 2017-09-13 16:01:58 +0100 | [diff] [blame] | 54 | |
Neil Fuller | 68f6666 | 2017-03-16 18:32:21 +0000 | [diff] [blame] | 55 | packageIntentFilter.addDataScheme("package"); |
| 56 | packageIntentFilter.addDataSchemeSpecificPart( |
| 57 | updaterAppPackageName, PatternMatcher.PATTERN_LITERAL); |
| 58 | packageIntentFilter.addDataSchemeSpecificPart( |
| 59 | dataAppPackageName, PatternMatcher.PATTERN_LITERAL); |
Neil Fuller | 228dc6c | 2017-09-13 16:01:58 +0100 | [diff] [blame] | 60 | |
| 61 | // ACTION_PACKAGE_ADDED is fired when a package is upgraded or downgraded (in addition to |
| 62 | // ACTION_PACKAGE_REMOVED and ACTION_PACKAGE_REPLACED). A system/priv-app can never be |
| 63 | // removed entirely so we do not need to trigger on ACTION_PACKAGE_REMOVED or |
| 64 | // ACTION_PACKAGE_FULLY_REMOVED. |
| 65 | packageIntentFilter.addAction(Intent.ACTION_PACKAGE_ADDED); |
| 66 | |
| 67 | // ACTION_PACKAGE_CHANGED is used when a package is disabled / re-enabled. It is not |
| 68 | // strictly necessary to trigger on this but it won't hurt anything and may catch some cases |
| 69 | // where a package has changed while disabled. |
| 70 | // Note: ACTION_PACKAGE_CHANGED is not fired when updating a suspended app, but |
| 71 | // ACTION_PACKAGE_ADDED, ACTION_PACKAGE_REMOVED and ACTION_PACKAGE_REPLACED are (and the app |
| 72 | // is left in an unsuspended state after this). |
| 73 | packageIntentFilter.addAction(Intent.ACTION_PACKAGE_CHANGED); |
| 74 | |
| 75 | // We do not register for ACTION_PACKAGE_RESTARTED because it doesn't imply an update. |
| 76 | // We do not register for ACTION_PACKAGE_DATA_CLEARED because the updater / data apps are |
| 77 | // not expected to need local data. |
| 78 | |
Neil Fuller | cd1a109 | 2017-09-13 21:59:59 +0100 | [diff] [blame] | 79 | Receiver packageUpdateReceiver = new Receiver(packageTracker); |
Neil Fuller | 1281f39 | 2017-09-22 15:32:06 +0100 | [diff] [blame] | 80 | mContext.registerReceiverAsUser( |
| 81 | packageUpdateReceiver, UserHandle.SYSTEM, packageIntentFilter, |
| 82 | null /* broadcastPermission */, null /* default handler */); |
Neil Fuller | 68f6666 | 2017-03-16 18:32:21 +0000 | [diff] [blame] | 83 | } |
| 84 | |
| 85 | /** Sends an intent to trigger an update check. */ |
| 86 | @Override |
| 87 | public void sendTriggerUpdateCheck(CheckToken checkToken) { |
| 88 | RulesUpdaterContract.sendBroadcast( |
| 89 | mContext, mUpdaterAppPackageName, checkToken.toByteArray()); |
Neil Fuller | d857f67 | 2017-07-20 11:00:35 +0100 | [diff] [blame] | 90 | EventLogTags.writeTimezoneTriggerCheck(checkToken.toString()); |
Neil Fuller | 68f6666 | 2017-03-16 18:32:21 +0000 | [diff] [blame] | 91 | } |
| 92 | |
| 93 | @Override |
Neil Fuller | cd1a109 | 2017-09-13 21:59:59 +0100 | [diff] [blame] | 94 | public synchronized void scheduleReliabilityTrigger(long minimumDelayMillis) { |
| 95 | TimeZoneUpdateIdler.schedule(mContext, minimumDelayMillis); |
Neil Fuller | 68f6666 | 2017-03-16 18:32:21 +0000 | [diff] [blame] | 96 | } |
| 97 | |
| 98 | @Override |
Neil Fuller | cd1a109 | 2017-09-13 21:59:59 +0100 | [diff] [blame] | 99 | public synchronized void unscheduleReliabilityTrigger() { |
| 100 | TimeZoneUpdateIdler.unschedule(mContext); |
Neil Fuller | 68f6666 | 2017-03-16 18:32:21 +0000 | [diff] [blame] | 101 | } |
| 102 | |
| 103 | private static class Receiver extends BroadcastReceiver { |
Neil Fuller | cd1a109 | 2017-09-13 21:59:59 +0100 | [diff] [blame] | 104 | private final PackageTracker mPackageTracker; |
Neil Fuller | 68f6666 | 2017-03-16 18:32:21 +0000 | [diff] [blame] | 105 | |
Neil Fuller | cd1a109 | 2017-09-13 21:59:59 +0100 | [diff] [blame] | 106 | private Receiver(PackageTracker packageTracker) { |
| 107 | mPackageTracker = packageTracker; |
Neil Fuller | 68f6666 | 2017-03-16 18:32:21 +0000 | [diff] [blame] | 108 | } |
| 109 | |
| 110 | @Override |
| 111 | public void onReceive(Context context, Intent intent) { |
| 112 | Slog.d(TAG, "Received intent: " + intent.toString()); |
Neil Fuller | cd1a109 | 2017-09-13 21:59:59 +0100 | [diff] [blame] | 113 | mPackageTracker.triggerUpdateIfNeeded(true /* packageChanged */); |
Neil Fuller | 68f6666 | 2017-03-16 18:32:21 +0000 | [diff] [blame] | 114 | } |
| 115 | } |
Neil Fuller | 68f6666 | 2017-03-16 18:32:21 +0000 | [diff] [blame] | 116 | } |