1 /* 2 * Copyright (C) 2016 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.am; 18 19 import static android.content.pm.PackageManager.MATCH_SYSTEM_ONLY; 20 21 import android.app.AppOpsManager; 22 import android.content.ComponentName; 23 import android.content.IIntentReceiver; 24 import android.content.Intent; 25 import android.content.pm.ResolveInfo; 26 import android.os.Bundle; 27 import android.os.Process; 28 import android.os.UserHandle; 29 import android.util.Slog; 30 31 import com.android.internal.R; 32 import com.android.internal.util.ProgressReporter; 33 34 import java.util.List; 35 36 /** 37 * Simple broadcaster that sends {@link Intent#ACTION_PRE_BOOT_COMPLETED} to all 38 * system apps that register for it. Override {@link #onFinished()} to handle 39 * when all broadcasts are finished. 40 */ 41 public abstract class PreBootBroadcaster extends IIntentReceiver.Stub { 42 private static final String TAG = "PreBootBroadcaster"; 43 44 private final ActivityManagerService mService; 45 private final int mUserId; 46 private final ProgressReporter mProgress; 47 48 private final Intent mIntent; 49 private final List<ResolveInfo> mTargets; 50 51 private int mIndex = 0; 52 PreBootBroadcaster(ActivityManagerService service, int userId, ProgressReporter progress)53 public PreBootBroadcaster(ActivityManagerService service, int userId, 54 ProgressReporter progress) { 55 mService = service; 56 mUserId = userId; 57 mProgress = progress; 58 59 mIntent = new Intent(Intent.ACTION_PRE_BOOT_COMPLETED); 60 mIntent.addFlags(Intent.FLAG_RECEIVER_BOOT_UPGRADE | Intent.FLAG_DEBUG_TRIAGED_MISSING); 61 62 mTargets = mService.mContext.getPackageManager().queryBroadcastReceiversAsUser(mIntent, 63 MATCH_SYSTEM_ONLY, UserHandle.of(userId)); 64 } 65 sendNext()66 public void sendNext() { 67 if (mIndex >= mTargets.size()) { 68 onFinished(); 69 return; 70 } 71 72 if (!mService.isUserRunning(mUserId, 0)) { 73 Slog.i(TAG, "User " + mUserId + " is no longer running; skipping remaining receivers"); 74 onFinished(); 75 return; 76 } 77 78 final ResolveInfo ri = mTargets.get(mIndex++); 79 final ComponentName componentName = ri.activityInfo.getComponentName(); 80 81 if (mProgress != null) { 82 final CharSequence label = ri.activityInfo 83 .loadLabel(mService.mContext.getPackageManager()); 84 mProgress.setProgress(mIndex, mTargets.size(), 85 mService.mContext.getString(R.string.android_preparing_apk, label)); 86 } 87 88 Slog.i(TAG, "Pre-boot of " + componentName.toShortString() + " for user " + mUserId); 89 EventLogTags.writeAmPreBoot(mUserId, componentName.getPackageName()); 90 91 mIntent.setComponent(componentName); 92 mService.broadcastIntentLocked(null, null, mIntent, null, this, 0, null, null, null, 93 AppOpsManager.OP_NONE, null, true, false, ActivityManagerService.MY_PID, 94 Process.SYSTEM_UID, mUserId); 95 } 96 97 @Override performReceive(Intent intent, int resultCode, String data, Bundle extras, boolean ordered, boolean sticky, int sendingUser)98 public void performReceive(Intent intent, int resultCode, String data, Bundle extras, 99 boolean ordered, boolean sticky, int sendingUser) { 100 sendNext(); 101 } 102 onFinished()103 public abstract void onFinished(); 104 } 105