| /* |
| * Copyright (C) 2019 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.permissioncontroller.permission.data |
| |
| import android.Manifest.permission.MANAGE_EXTERNAL_STORAGE |
| import android.Manifest.permission_group.STORAGE |
| import android.app.AppOpsManager |
| import android.app.AppOpsManager.MODE_ALLOWED |
| import android.app.AppOpsManager.MODE_DEFAULT |
| import android.app.AppOpsManager.MODE_FOREGROUND |
| import android.app.AppOpsManager.OPSTR_LEGACY_STORAGE |
| import android.app.AppOpsManager.OPSTR_MANAGE_EXTERNAL_STORAGE |
| import android.app.Application |
| import android.os.Build |
| import android.os.UserHandle |
| import com.android.permissioncontroller.PermissionControllerApplication |
| import com.android.permissioncontroller.permission.model.livedatatypes.LightPackageInfo |
| import kotlinx.coroutines.Job |
| |
| /** |
| * A liveData which tracks all packages in the system which have full file permissions, as |
| * represented by the OPSTR_LEGACY_STORAGE app op, not just media-only storage permissions. |
| * |
| */ |
| object FullStoragePermissionAppsLiveData : |
| SmartAsyncMediatorLiveData<List<FullStoragePermissionAppsLiveData.FullStoragePackageState>>() { |
| |
| private val app: Application = PermissionControllerApplication.get() |
| private val standardPermGroupsPackagesLiveData = PermGroupsPackagesLiveData.get( |
| customGroups = false) |
| |
| data class FullStoragePackageState( |
| val packageName: String, |
| val user: UserHandle, |
| val isLegacy: Boolean, |
| val isGranted: Boolean |
| ) |
| |
| init { |
| addSource(standardPermGroupsPackagesLiveData) { |
| updateAsync() |
| } |
| addSource(AllPackageInfosLiveData) { |
| updateAsync() |
| } |
| } |
| |
| override suspend fun loadDataAndPostValue(job: Job) { |
| val storagePackages = standardPermGroupsPackagesLiveData.value?.get(STORAGE) ?: return |
| val appOpsManager = app.getSystemService(AppOpsManager::class.java) ?: return |
| |
| val fullStoragePackages = mutableListOf<FullStoragePackageState>() |
| for ((user, packageInfoList) in AllPackageInfosLiveData.value ?: emptyMap()) { |
| val userPackages = packageInfoList.filter { |
| storagePackages.contains(it.packageName to user) || |
| it.requestedPermissions.contains(MANAGE_EXTERNAL_STORAGE) |
| } |
| |
| for (packageInfo in userPackages) { |
| fullStoragePackages.add(getFullStorageStateForPackage(appOpsManager, |
| packageInfo, user) ?: continue) |
| } |
| } |
| |
| postValue(fullStoragePackages) |
| } |
| |
| /** |
| * Gets the full storage package information for a given package |
| * |
| * @param appOpsManager The App Ops manager to use, if applicable |
| * @param packageInfo The package whose state is to be determined |
| * @param userHandle A preexisting UserHandle object to use. Otherwise, one will be created |
| * |
| * @return the FullStoragePackageState for the package, or null if the package does not request |
| * full storage permissions |
| */ |
| fun getFullStorageStateForPackage( |
| appOpsManager: AppOpsManager, |
| packageInfo: LightPackageInfo, |
| userHandle: UserHandle? = null |
| ): FullStoragePackageState? { |
| val sdk = packageInfo.targetSdkVersion |
| val user = userHandle ?: UserHandle.getUserHandleForUid(packageInfo.uid) |
| if (sdk < Build.VERSION_CODES.P) { |
| return FullStoragePackageState(packageInfo.packageName, user, |
| isLegacy = true, isGranted = true) |
| } else if (sdk <= Build.VERSION_CODES.Q && |
| appOpsManager.unsafeCheckOpNoThrow(OPSTR_LEGACY_STORAGE, packageInfo.uid, |
| packageInfo.packageName) == MODE_ALLOWED) { |
| return FullStoragePackageState(packageInfo.packageName, user, |
| isLegacy = true, isGranted = true) |
| } |
| if (MANAGE_EXTERNAL_STORAGE in packageInfo.requestedPermissions) { |
| val mode = appOpsManager.unsafeCheckOpNoThrow(OPSTR_MANAGE_EXTERNAL_STORAGE, |
| packageInfo.uid, packageInfo.packageName) |
| val granted = mode == MODE_ALLOWED || mode == MODE_FOREGROUND || |
| (mode == MODE_DEFAULT && |
| MANAGE_EXTERNAL_STORAGE in packageInfo.grantedPermissions) |
| return FullStoragePackageState(packageInfo.packageName, user, |
| isLegacy = false, isGranted = granted) |
| } |
| return null |
| } |
| |
| /** |
| * Recalculate the LiveData |
| * TODO ntmyren: Make livedata properly observe app ops |
| */ |
| fun recalculate() { |
| updateAsync() |
| } |
| } |