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      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.app.Notification;
     23 import android.app.NotificationManager;
     24 import android.app.PendingIntent;
     25 import android.content.ComponentName;
     26 import android.content.Context;
     27 import android.content.IIntentReceiver;
     28 import android.content.Intent;
     29 import android.content.pm.ResolveInfo;
     30 import android.os.Binder;
     31 import android.os.Bundle;
     32 import android.os.Handler;
     33 import android.os.Message;
     34 import android.os.Process;
     35 import android.os.UserHandle;
     36 import android.util.Slog;
     37 
     38 import com.android.internal.R;
     39 import com.android.internal.messages.nano.SystemMessageProto.SystemMessage;
     40 import com.android.internal.notification.SystemNotificationChannels;
     41 import com.android.internal.util.ProgressReporter;
     42 import com.android.server.UiThread;
     43 
     44 import java.util.List;
     45 
     46 /**
     47  * Simple broadcaster that sends {@link Intent#ACTION_PRE_BOOT_COMPLETED} to all
     48  * system apps that register for it. Override {@link #onFinished()} to handle
     49  * when all broadcasts are finished.
     50  */
     51 public abstract class PreBootBroadcaster extends IIntentReceiver.Stub {
     52     private static final String TAG = "PreBootBroadcaster";
     53 
     54     private final ActivityManagerService mService;
     55     private final int mUserId;
     56     private final ProgressReporter mProgress;
     57     private final boolean mQuiet;
     58 
     59     private final Intent mIntent;
     60     private final List<ResolveInfo> mTargets;
     61 
     62     private int mIndex = 0;
     63 
     64     public PreBootBroadcaster(ActivityManagerService service, int userId,
     65             ProgressReporter progress, boolean quiet) {
     66         mService = service;
     67         mUserId = userId;
     68         mProgress = progress;
     69         mQuiet = quiet;
     70 
     71         mIntent = new Intent(Intent.ACTION_PRE_BOOT_COMPLETED);
     72         mIntent.addFlags(Intent.FLAG_RECEIVER_BOOT_UPGRADE | Intent.FLAG_DEBUG_TRIAGED_MISSING);
     73 
     74         mTargets = mService.mContext.getPackageManager().queryBroadcastReceiversAsUser(mIntent,
     75                 MATCH_SYSTEM_ONLY, UserHandle.of(userId));
     76     }
     77 
     78     public void sendNext() {
     79         if (mIndex >= mTargets.size()) {
     80             mHandler.obtainMessage(MSG_HIDE).sendToTarget();
     81             onFinished();
     82             return;
     83         }
     84 
     85         if (!mService.isUserRunning(mUserId, 0)) {
     86             Slog.i(TAG, "User " + mUserId + " is no longer running; skipping remaining receivers");
     87             mHandler.obtainMessage(MSG_HIDE).sendToTarget();
     88             onFinished();
     89             return;
     90         }
     91 
     92         if (!mQuiet) {
     93             mHandler.obtainMessage(MSG_SHOW, mTargets.size(), mIndex).sendToTarget();
     94         }
     95 
     96         final ResolveInfo ri = mTargets.get(mIndex++);
     97         final ComponentName componentName = ri.activityInfo.getComponentName();
     98 
     99         if (mProgress != null) {
    100             final CharSequence label = ri.activityInfo
    101                     .loadLabel(mService.mContext.getPackageManager());
    102             mProgress.setProgress(mIndex, mTargets.size(),
    103                     mService.mContext.getString(R.string.android_preparing_apk, label));
    104         }
    105 
    106         Slog.i(TAG, "Pre-boot of " + componentName.toShortString() + " for user " + mUserId);
    107         EventLogTags.writeAmPreBoot(mUserId, componentName.getPackageName());
    108 
    109         mIntent.setComponent(componentName);
    110         synchronized (mService) {
    111             mService.broadcastIntentLocked(null, null, mIntent, null, this, 0, null, null, null,
    112                     AppOpsManager.OP_NONE, null, true, false, ActivityManagerService.MY_PID,
    113                     Process.SYSTEM_UID, Binder.getCallingUid(), Binder.getCallingPid(), mUserId);
    114         }
    115     }
    116 
    117     @Override
    118     public void performReceive(Intent intent, int resultCode, String data, Bundle extras,
    119             boolean ordered, boolean sticky, int sendingUser) {
    120         sendNext();
    121     }
    122 
    123     private static final int MSG_SHOW = 1;
    124     private static final int MSG_HIDE = 2;
    125 
    126     private Handler mHandler = new Handler(UiThread.get().getLooper(), null, true) {
    127         @Override
    128         public void handleMessage(Message msg) {
    129             final Context context = mService.mContext;
    130             final NotificationManager notifManager = context
    131                     .getSystemService(NotificationManager.class);
    132             final int max = msg.arg1;
    133             final int index = msg.arg2;
    134 
    135             switch (msg.what) {
    136                 case MSG_SHOW:
    137                     final CharSequence title = context
    138                             .getText(R.string.android_upgrading_notification_title);
    139 
    140                     final Intent intent = new Intent();
    141                     intent.setClassName("com.android.settings",
    142                             "com.android.settings.HelpTrampoline");
    143                     intent.putExtra(Intent.EXTRA_TEXT, "help_url_upgrading");
    144 
    145                     final PendingIntent contentIntent;
    146                     if (context.getPackageManager().resolveActivity(intent, 0) != null) {
    147                         contentIntent = PendingIntent.getActivity(context, 0, intent, 0);
    148                     } else {
    149                         contentIntent = null;
    150                     }
    151 
    152                     final Notification notif =
    153                             new Notification.Builder(mService.mContext,
    154                                     SystemNotificationChannels.UPDATES)
    155                             .setSmallIcon(R.drawable.stat_sys_adb)
    156                             .setWhen(0)
    157                             .setOngoing(true)
    158                             .setTicker(title)
    159                             .setColor(context.getColor(
    160                                     com.android.internal.R.color.system_notification_accent_color))
    161                             .setContentTitle(title)
    162                             .setContentIntent(contentIntent)
    163                             .setVisibility(Notification.VISIBILITY_PUBLIC)
    164                             .setProgress(max, index, false)
    165                             .build();
    166                     notifManager.notifyAsUser(TAG, SystemMessage.NOTE_SYSTEM_UPGRADING, notif,
    167                             UserHandle.of(mUserId));
    168                     break;
    169 
    170                 case MSG_HIDE:
    171                     notifManager.cancelAsUser(TAG, SystemMessage.NOTE_SYSTEM_UPGRADING,
    172                             UserHandle.of(mUserId));
    173                     break;
    174             }
    175         }
    176     };
    177 
    178     public abstract void onFinished();
    179 }
    180