Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2018 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.systemui.privacy |
| 18 | |
| 19 | import android.app.ActivityManager |
| 20 | import android.app.AppOpsManager |
Fabian Kozynski | b5625ac | 2018-11-21 08:56:55 -0500 | [diff] [blame] | 21 | import android.content.BroadcastReceiver |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 22 | import android.content.Context |
Fabian Kozynski | b5625ac | 2018-11-21 08:56:55 -0500 | [diff] [blame] | 23 | import android.content.Intent |
| 24 | import android.content.IntentFilter |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 25 | import android.os.Handler |
| 26 | import android.os.UserHandle |
| 27 | import android.os.UserManager |
Fabian Kozynski | b5625ac | 2018-11-21 08:56:55 -0500 | [diff] [blame] | 28 | import com.android.internal.annotations.VisibleForTesting |
Fabian Kozynski | 8176539 | 2019-02-11 12:38:26 -0500 | [diff] [blame] | 29 | import com.android.systemui.Dependency.BG_HANDLER_NAME |
| 30 | import com.android.systemui.Dependency.MAIN_HANDLER_NAME |
| 31 | import com.android.systemui.R |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 32 | import com.android.systemui.appops.AppOpItem |
| 33 | import com.android.systemui.appops.AppOpsController |
Fabian Kozynski | a6ff80b | 2019-02-12 11:32:44 -0500 | [diff] [blame] | 34 | import com.android.systemui.Dumpable |
| 35 | import java.io.FileDescriptor |
| 36 | import java.io.PrintWriter |
Fabian Kozynski | 04f83eb | 2019-01-22 10:38:40 -0500 | [diff] [blame] | 37 | import java.lang.ref.WeakReference |
| 38 | import javax.inject.Inject |
Fabian Kozynski | 8176539 | 2019-02-11 12:38:26 -0500 | [diff] [blame] | 39 | import javax.inject.Named |
Fabian Kozynski | 04f83eb | 2019-01-22 10:38:40 -0500 | [diff] [blame] | 40 | import javax.inject.Singleton |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 41 | |
Fabian Kozynski | 04f83eb | 2019-01-22 10:38:40 -0500 | [diff] [blame] | 42 | @Singleton |
Fabian Kozynski | 8176539 | 2019-02-11 12:38:26 -0500 | [diff] [blame] | 43 | class PrivacyItemController @Inject constructor( |
| 44 | val context: Context, |
| 45 | private val appOpsController: AppOpsController, |
| 46 | @Named(MAIN_HANDLER_NAME) private val uiHandler: Handler, |
| 47 | @Named(BG_HANDLER_NAME) private val bgHandler: Handler |
Fabian Kozynski | a6ff80b | 2019-02-12 11:32:44 -0500 | [diff] [blame] | 48 | ) : Dumpable { |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 49 | |
| 50 | companion object { |
| 51 | val OPS = intArrayOf(AppOpsManager.OP_CAMERA, |
| 52 | AppOpsManager.OP_RECORD_AUDIO, |
| 53 | AppOpsManager.OP_COARSE_LOCATION, |
| 54 | AppOpsManager.OP_FINE_LOCATION) |
Fabian Kozynski | b5625ac | 2018-11-21 08:56:55 -0500 | [diff] [blame] | 55 | val intents = listOf(Intent.ACTION_USER_FOREGROUND, |
| 56 | Intent.ACTION_MANAGED_PROFILE_ADDED, |
| 57 | Intent.ACTION_MANAGED_PROFILE_REMOVED) |
| 58 | const val TAG = "PrivacyItemController" |
Fabian Kozynski | 508422b | 2018-12-20 10:58:17 -0500 | [diff] [blame] | 59 | const val SYSTEM_UID = 1000 |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 60 | } |
Fabian Kozynski | 508422b | 2018-12-20 10:58:17 -0500 | [diff] [blame] | 61 | |
Fabian Kozynski | a6ff80b | 2019-02-12 11:32:44 -0500 | [diff] [blame] | 62 | @VisibleForTesting |
| 63 | internal var privacyList = emptyList<PrivacyItem>() |
| 64 | get() = field.toList() // Provides a shallow copy of the list |
| 65 | |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 66 | private val userManager = context.getSystemService(UserManager::class.java) |
Fabian Kozynski | b5625ac | 2018-11-21 08:56:55 -0500 | [diff] [blame] | 67 | private var currentUserIds = emptyList<Int>() |
Fabian Kozynski | b5625ac | 2018-11-21 08:56:55 -0500 | [diff] [blame] | 68 | private var listening = false |
Fabian Kozynski | 0d03da3 | 2019-01-28 10:35:28 -0500 | [diff] [blame] | 69 | val systemApp = |
| 70 | PrivacyApplication(context.getString(R.string.device_services), SYSTEM_UID, context) |
Fabian Kozynski | 04f83eb | 2019-01-22 10:38:40 -0500 | [diff] [blame] | 71 | private val callbacks = mutableListOf<WeakReference<Callback>>() |
Fabian Kozynski | b5625ac | 2018-11-21 08:56:55 -0500 | [diff] [blame] | 72 | |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 73 | private val notifyChanges = Runnable { |
Fabian Kozynski | 04f83eb | 2019-01-22 10:38:40 -0500 | [diff] [blame] | 74 | callbacks.forEach { it.get()?.privacyChanged(privacyList) } |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 75 | } |
Fabian Kozynski | b5625ac | 2018-11-21 08:56:55 -0500 | [diff] [blame] | 76 | |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 77 | private val updateListAndNotifyChanges = Runnable { |
| 78 | updatePrivacyList() |
| 79 | uiHandler.post(notifyChanges) |
| 80 | } |
| 81 | |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 82 | private val cb = object : AppOpsController.Callback { |
| 83 | override fun onActiveStateChanged( |
| 84 | code: Int, |
| 85 | uid: Int, |
| 86 | packageName: String, |
| 87 | active: Boolean |
| 88 | ) { |
| 89 | val userId = UserHandle.getUserId(uid) |
| 90 | if (userId in currentUserIds) { |
Fabian Kozynski | b5625ac | 2018-11-21 08:56:55 -0500 | [diff] [blame] | 91 | update(false) |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 92 | } |
| 93 | } |
| 94 | } |
| 95 | |
Fabian Kozynski | b5625ac | 2018-11-21 08:56:55 -0500 | [diff] [blame] | 96 | @VisibleForTesting |
| 97 | internal var userSwitcherReceiver = Receiver() |
| 98 | set(value) { |
| 99 | context.unregisterReceiver(field) |
| 100 | field = value |
| 101 | registerReceiver() |
| 102 | } |
| 103 | |
Fabian Kozynski | 04f83eb | 2019-01-22 10:38:40 -0500 | [diff] [blame] | 104 | private fun unregisterReceiver() { |
| 105 | context.unregisterReceiver(userSwitcherReceiver) |
Fabian Kozynski | b5625ac | 2018-11-21 08:56:55 -0500 | [diff] [blame] | 106 | } |
| 107 | |
| 108 | private fun registerReceiver() { |
| 109 | context.registerReceiverAsUser(userSwitcherReceiver, UserHandle.ALL, IntentFilter().apply { |
| 110 | intents.forEach { |
| 111 | addAction(it) |
| 112 | } |
| 113 | }, null, null) |
| 114 | } |
| 115 | |
| 116 | private fun update(updateUsers: Boolean) { |
| 117 | if (updateUsers) { |
| 118 | val currentUser = ActivityManager.getCurrentUser() |
| 119 | currentUserIds = userManager.getProfiles(currentUser).map { it.id } |
| 120 | } |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 121 | bgHandler.post(updateListAndNotifyChanges) |
| 122 | } |
| 123 | |
Fabian Kozynski | 04f83eb | 2019-01-22 10:38:40 -0500 | [diff] [blame] | 124 | @VisibleForTesting |
| 125 | internal fun setListening(listen: Boolean) { |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 126 | if (listening == listen) return |
| 127 | listening = listen |
| 128 | if (listening) { |
| 129 | appOpsController.addCallback(OPS, cb) |
Fabian Kozynski | 04f83eb | 2019-01-22 10:38:40 -0500 | [diff] [blame] | 130 | registerReceiver() |
Fabian Kozynski | b5625ac | 2018-11-21 08:56:55 -0500 | [diff] [blame] | 131 | update(true) |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 132 | } else { |
| 133 | appOpsController.removeCallback(OPS, cb) |
Fabian Kozynski | 04f83eb | 2019-01-22 10:38:40 -0500 | [diff] [blame] | 134 | unregisterReceiver() |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 135 | } |
| 136 | } |
| 137 | |
Fabian Kozynski | 04f83eb | 2019-01-22 10:38:40 -0500 | [diff] [blame] | 138 | private fun addCallback(callback: WeakReference<Callback>) { |
| 139 | callbacks.add(callback) |
| 140 | if (callbacks.isNotEmpty() && !listening) setListening(true) |
| 141 | // Notify this callback if we didn't set to listening |
| 142 | else uiHandler.post(NotifyChangesToCallback(callback.get(), privacyList)) |
| 143 | } |
| 144 | |
| 145 | private fun removeCallback(callback: WeakReference<Callback>) { |
| 146 | // Removes also if the callback is null |
| 147 | callbacks.removeIf { it.get()?.equals(callback.get()) ?: true } |
| 148 | if (callbacks.isEmpty()) setListening(false) |
| 149 | } |
| 150 | |
| 151 | fun addCallback(callback: Callback) { |
| 152 | addCallback(WeakReference(callback)) |
| 153 | } |
| 154 | |
| 155 | fun removeCallback(callback: Callback) { |
| 156 | removeCallback(WeakReference(callback)) |
| 157 | } |
| 158 | |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 159 | private fun updatePrivacyList() { |
| 160 | privacyList = currentUserIds.flatMap { appOpsController.getActiveAppOpsForUser(it) } |
Fabian Kozynski | 510585d | 2018-12-19 13:59:17 -0500 | [diff] [blame] | 161 | .mapNotNull { toPrivacyItem(it) }.distinct() |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 162 | } |
| 163 | |
| 164 | private fun toPrivacyItem(appOpItem: AppOpItem): PrivacyItem? { |
| 165 | val type: PrivacyType = when (appOpItem.code) { |
| 166 | AppOpsManager.OP_CAMERA -> PrivacyType.TYPE_CAMERA |
| 167 | AppOpsManager.OP_COARSE_LOCATION -> PrivacyType.TYPE_LOCATION |
| 168 | AppOpsManager.OP_FINE_LOCATION -> PrivacyType.TYPE_LOCATION |
| 169 | AppOpsManager.OP_RECORD_AUDIO -> PrivacyType.TYPE_MICROPHONE |
| 170 | else -> return null |
| 171 | } |
Fabian Kozynski | 508422b | 2018-12-20 10:58:17 -0500 | [diff] [blame] | 172 | if (appOpItem.uid == SYSTEM_UID) return PrivacyItem(type, systemApp) |
Fabian Kozynski | 0d03da3 | 2019-01-28 10:35:28 -0500 | [diff] [blame] | 173 | val app = PrivacyApplication(appOpItem.packageName, appOpItem.uid, context) |
Fabian Kozynski | ef12449 | 2018-11-02 11:02:11 -0400 | [diff] [blame] | 174 | return PrivacyItem(type, app) |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 175 | } |
| 176 | |
| 177 | // Used by containing class to get notified of changes |
| 178 | interface Callback { |
| 179 | fun privacyChanged(privacyItems: List<PrivacyItem>) |
| 180 | } |
Fabian Kozynski | b5625ac | 2018-11-21 08:56:55 -0500 | [diff] [blame] | 181 | |
| 182 | internal inner class Receiver : BroadcastReceiver() { |
| 183 | override fun onReceive(context: Context?, intent: Intent?) { |
| 184 | if (intent?.action in intents) { |
| 185 | update(true) |
| 186 | } |
| 187 | } |
| 188 | } |
Fabian Kozynski | 04f83eb | 2019-01-22 10:38:40 -0500 | [diff] [blame] | 189 | |
| 190 | private class NotifyChangesToCallback( |
| 191 | private val callback: Callback?, |
| 192 | private val list: List<PrivacyItem> |
| 193 | ) : Runnable { |
| 194 | override fun run() { |
| 195 | callback?.privacyChanged(list) |
| 196 | } |
| 197 | } |
Fabian Kozynski | a6ff80b | 2019-02-12 11:32:44 -0500 | [diff] [blame] | 198 | |
| 199 | override fun dump(fd: FileDescriptor?, pw: PrintWriter?, args: Array<out String>?) { |
| 200 | pw?.println("PrivacyItemController state:") |
| 201 | pw?.println(" Listening: $listening") |
| 202 | pw?.println(" Current user ids: $currentUserIds") |
| 203 | pw?.println(" Privacy Items:") |
| 204 | privacyList.forEach { |
| 205 | pw?.print(" ") |
| 206 | pw?.println(it.toString()) |
| 207 | } |
| 208 | pw?.println(" Callbacks:") |
| 209 | callbacks.forEach { |
| 210 | it.get()?.let { |
| 211 | pw?.print(" ") |
| 212 | pw?.println(it.toString()) |
| 213 | } |
| 214 | } |
| 215 | } |
Fabian Kozynski | 8d06c71 | 2018-11-07 10:33:02 -0500 | [diff] [blame] | 216 | } |