1 /* 2 * Copyright (C) 2019 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.permissioncontroller.permission.data 18 19 import android.app.Application 20 import android.content.pm.PermissionInfo 21 import com.android.permissioncontroller.PermissionControllerApplication 22 import com.android.permissioncontroller.permission.utils.Utils 23 24 /** 25 * A class which tracks the names of all custom permission groups in the system, including 26 * non-grouped runtime permissions, the UNDEFINED group, and any group not defined by the system. 27 * 28 */ 29 object CustomPermGroupNamesLiveData : SmartUpdateMediatorLiveData<List<String>>() { 30 31 private val app: Application = PermissionControllerApplication.get() 32 private val packagesLiveData = AllPackageInfosLiveData 33 34 init { <lambda>null35 addSource(packagesLiveData) { 36 update() 37 } 38 } 39 onUpdatenull40 override fun onUpdate() { 41 val platformGroupNames = Utils.getPlatformPermissionGroups() 42 val groupNames = mutableListOf<String>() 43 44 val allPackages = packagesLiveData.value ?: return 45 46 for ((_, packageInfos) in allPackages) { 47 for (packageInfo in packageInfos) { 48 // Look for possible lone runtime permissions or custom groups 49 packageInfo.permissions.let { 50 for (permission in it) { 51 // We care only about installed runtime permissions. 52 if (permission.protection != PermissionInfo.PROTECTION_DANGEROUS || 53 permission.flags and PermissionInfo.FLAG_INSTALLED == 0) { 54 continue 55 } 56 57 // If this permission is already in a group, no more work to do 58 if (groupNames.contains(permission.group) || 59 platformGroupNames.contains(permission.group) || 60 groupNames.contains(permission.name)) { 61 continue 62 } 63 64 if (permission.group != null) { 65 groupNames.add(permission.group) 66 } else { 67 groupNames.add(permission.name) 68 } 69 } 70 } 71 } 72 } 73 value = groupNames 74 } 75 } 76