commit a1b79bfd7a15006a93da933695359765e0fee495
author Felipe Leme <felipeal@google.com> Tue May 24 13:06:54 2016 -0700
committer Felipe Leme <felipeal@google.com> Fri May 27 11:45:09 2016 -0700
tree 3177b01166825fc941d68a3444638e71db8e7f29
parent bd34103c5defbfd180be6a387eb5aa82d4b97eac

Allow apps to bypass Power Save restrictions when launched from a Notification's PendingIntent.

This scenario typically happens when the device is on Doze Mode and a
notification action is triggered from a Wear device.

In a nutshell, the workflow is:

- ProcessRecord has a flag telling whether a process has "whitelist
  management" privileges.
- When NotificationManager binds a new NotificationListenerService, it
  sets the BIND_ALLOW_WHITELIST_MANAGEMENT flag.
- On bind(), ActiveService asserts that only system apps can set that
  flag.
- On computeOomAdjLocked(), ActivityManagerService sets the
  ProcessRecord flag if necessary.
- Upon creating a notification, NotificationManager calls AM to mark its
  PendingIntents as coming from a notification.
- When PendingIntentRecord sends it to the target, it checks if it's
  from a notification and if so calls AM to do the temp whitelist.
- On unbind(), ActiveService removes the ProcessRecord flag if necessary.

Fixes: 28818704

Change-Id: I00d46036a2cbb73f7f733fd35bf0b743a02807a1

services/core/java/com/android/server/notification/ManagedServices.java

diff --git a/services/core/java/com/android/server/notification/ManagedServices.java b/services/core/java/com/android/server/notification/ManagedServices.java
index 53c5a6d..dc85dd7 100644
--- a/services/core/java/com/android/server/notification/ManagedServices.java
+++ b/services/core/java/com/android/server/notification/ManagedServices.java
@@ -16,6 +16,10 @@
 
 package com.android.server.notification;
 
+import static android.content.Context.BIND_ALLOW_WHITELIST_MANAGEMENT;
+import static android.content.Context.BIND_AUTO_CREATE;
+import static android.content.Context.BIND_FOREGROUND_SERVICE;
+
 import android.annotation.NonNull;
 import android.app.ActivityManager;
 import android.app.PendingIntent;
@@ -43,7 +47,6 @@
 import android.os.UserManager;
 import android.provider.Settings;
 import android.text.TextUtils;
-import android.util.ArrayMap;
 import android.util.ArraySet;
 import android.util.Log;
 import android.util.Slog;
@@ -56,7 +59,6 @@
 import java.util.Arrays;
 import java.util.HashSet;
 import java.util.List;
-import java.util.Map.Entry;
 import java.util.Objects;
 import java.util.Set;
 
@@ -681,7 +683,7 @@
             };
             if (!mContext.bindServiceAsUser(intent,
                 serviceConnection,
-                Context.BIND_AUTO_CREATE | Context.BIND_FOREGROUND_SERVICE,
+                BIND_AUTO_CREATE | BIND_FOREGROUND_SERVICE | BIND_ALLOW_WHITELIST_MANAGEMENT,
                 new UserHandle(userid))) {
                 mServicesBinding.remove(servicesBindingTag);
                 Slog.w(TAG, "Unable to bind " + getCaption() + " service: " + intent);