| /* |
| * 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.systemui; |
| |
| import android.annotation.Nullable; |
| import android.app.AppOpsManager; |
| import android.os.Handler; |
| import android.os.UserHandle; |
| import android.service.notification.StatusBarNotification; |
| import android.util.ArraySet; |
| import android.util.SparseArray; |
| |
| import com.android.internal.messages.nano.SystemMessageProto; |
| import com.android.systemui.appops.AppOpsController; |
| import com.android.systemui.dagger.qualifiers.MainHandler; |
| import com.android.systemui.statusbar.notification.NotificationEntryManager; |
| import com.android.systemui.statusbar.notification.collection.NotificationEntry; |
| |
| import javax.inject.Inject; |
| import javax.inject.Singleton; |
| |
| /** |
| * Tracks state of foreground services and notifications related to foreground services per user. |
| */ |
| @Singleton |
| public class ForegroundServiceController { |
| private static final int[] APP_OPS = new int[] {AppOpsManager.OP_CAMERA, |
| AppOpsManager.OP_SYSTEM_ALERT_WINDOW, |
| AppOpsManager.OP_RECORD_AUDIO, |
| AppOpsManager.OP_COARSE_LOCATION, |
| AppOpsManager.OP_FINE_LOCATION}; |
| |
| private final SparseArray<ForegroundServicesUserState> mUserServices = new SparseArray<>(); |
| private final Object mMutex = new Object(); |
| private final NotificationEntryManager mEntryManager; |
| private final Handler mMainHandler; |
| |
| @Inject |
| public ForegroundServiceController(NotificationEntryManager entryManager, |
| AppOpsController appOpsController, @MainHandler Handler mainHandler) { |
| mEntryManager = entryManager; |
| mMainHandler = mainHandler; |
| appOpsController.addCallback(APP_OPS, (code, uid, packageName, active) -> { |
| mMainHandler.post(() -> { |
| onAppOpChanged(code, uid, packageName, active); |
| }); |
| }); |
| } |
| |
| /** |
| * @return true if this user has services missing notifications and therefore needs a |
| * disclosure notification. |
| */ |
| public boolean isDisclosureNeededForUser(int userId) { |
| synchronized (mMutex) { |
| final ForegroundServicesUserState services = mUserServices.get(userId); |
| if (services == null) return false; |
| return services.isDisclosureNeeded(); |
| } |
| } |
| |
| /** |
| * @return true if this user/pkg has a missing or custom layout notification and therefore needs |
| * a disclosure notification for system alert windows. |
| */ |
| public boolean isSystemAlertWarningNeeded(int userId, String pkg) { |
| synchronized (mMutex) { |
| final ForegroundServicesUserState services = mUserServices.get(userId); |
| if (services == null) return false; |
| return services.getStandardLayoutKey(pkg) == null; |
| } |
| } |
| |
| /** |
| * Returns the key of the foreground service from this package using the standard template, |
| * if one exists. |
| */ |
| @Nullable |
| public String getStandardLayoutKey(int userId, String pkg) { |
| synchronized (mMutex) { |
| final ForegroundServicesUserState services = mUserServices.get(userId); |
| if (services == null) return null; |
| return services.getStandardLayoutKey(pkg); |
| } |
| } |
| |
| /** |
| * Gets active app ops for this user and package |
| */ |
| @Nullable |
| public ArraySet<Integer> getAppOps(int userId, String pkg) { |
| synchronized (mMutex) { |
| final ForegroundServicesUserState services = mUserServices.get(userId); |
| if (services == null) { |
| return null; |
| } |
| return services.getFeatures(pkg); |
| } |
| } |
| |
| /** |
| * Records active app ops and updates the app op for the pending or visible notifications |
| * with the given parameters. |
| * App Ops are stored in FSC in addition to NotificationEntry in case they change before we |
| * have a notification to tag. |
| * @param appOpCode code for appOp to add/remove |
| * @param uid of user the notification is sent to |
| * @param packageName package that created the notification |
| * @param active whether the appOpCode is active or not |
| */ |
| void onAppOpChanged(int appOpCode, int uid, String packageName, boolean active) { |
| int userId = UserHandle.getUserId(uid); |
| // Record active app ops |
| synchronized (mMutex) { |
| ForegroundServicesUserState userServices = mUserServices.get(userId); |
| if (userServices == null) { |
| userServices = new ForegroundServicesUserState(); |
| mUserServices.put(userId, userServices); |
| } |
| if (active) { |
| userServices.addOp(packageName, appOpCode); |
| } else { |
| userServices.removeOp(packageName, appOpCode); |
| } |
| } |
| |
| // Update appOp if there's an associated pending or visible notification: |
| final String foregroundKey = getStandardLayoutKey(userId, packageName); |
| if (foregroundKey != null) { |
| final NotificationEntry entry = mEntryManager.getPendingOrCurrentNotif( |
| foregroundKey); |
| if (entry != null |
| && uid == entry.getSbn().getUid() |
| && packageName.equals(entry.getSbn().getPackageName())) { |
| boolean changed; |
| synchronized (entry.mActiveAppOps) { |
| if (active) { |
| changed = entry.mActiveAppOps.add(appOpCode); |
| } else { |
| changed = entry.mActiveAppOps.remove(appOpCode); |
| } |
| } |
| if (changed) { |
| mEntryManager.updateNotifications("appOpChanged pkg=" + packageName); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Looks up the {@link ForegroundServicesUserState} for the given {@code userId}, then performs |
| * the given {@link UserStateUpdateCallback} on it. If no state exists for the user ID, creates |
| * a new one if {@code createIfNotFound} is true, then performs the update on the new state. |
| * If {@code createIfNotFound} is false, no update is performed. |
| * |
| * @return false if no user state was found and none was created; true otherwise. |
| */ |
| boolean updateUserState(int userId, |
| UserStateUpdateCallback updateCallback, |
| boolean createIfNotFound) { |
| synchronized (mMutex) { |
| ForegroundServicesUserState userState = mUserServices.get(userId); |
| if (userState == null) { |
| if (createIfNotFound) { |
| userState = new ForegroundServicesUserState(); |
| mUserServices.put(userId, userState); |
| } else { |
| return false; |
| } |
| } |
| return updateCallback.updateUserState(userState); |
| } |
| } |
| |
| /** |
| * @return true if {@code sbn} is the system-provided disclosure notification containing the |
| * list of running foreground services. |
| */ |
| public boolean isDisclosureNotification(StatusBarNotification sbn) { |
| return sbn.getId() == SystemMessageProto.SystemMessage.NOTE_FOREGROUND_SERVICES |
| && sbn.getTag() == null |
| && sbn.getPackageName().equals("android"); |
| } |
| |
| /** |
| * @return true if sbn is one of the window manager "drawing over other apps" notifications |
| */ |
| public boolean isSystemAlertNotification(StatusBarNotification sbn) { |
| return sbn.getPackageName().equals("android") |
| && sbn.getTag() != null |
| && sbn.getTag().contains("AlertWindowNotification"); |
| } |
| |
| /** |
| * Callback provided to {@link #updateUserState(int, UserStateUpdateCallback, boolean)} |
| * to perform the update. |
| */ |
| interface UserStateUpdateCallback { |
| /** |
| * Perform update operations on the provided {@code userState}. |
| * |
| * @return true if the update succeeded. |
| */ |
| boolean updateUserState(ForegroundServicesUserState userState); |
| |
| /** Called if the state was not found and was not created. */ |
| default void userStateNotFound(int userId) { |
| } |
| } |
| } |