1 /* <lambda>null2 * 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 @file:Suppress("DEPRECATION") 17 18 package com.android.permissioncontroller.permission.model.livedatatypes 19 20 import android.app.Application 21 import android.content.pm.ApplicationInfo 22 import android.content.pm.Attribution 23 import android.content.pm.PackageInfo 24 import android.content.pm.PackageManager 25 import android.os.UserHandle 26 import com.android.modules.utils.build.SdkLevel 27 import com.android.permissioncontroller.permission.utils.Utils 28 29 /** 30 * A lighter version of the system's PackageInfo class, containing select information about the 31 * package. 32 * 33 * @param packageName The name of the packages 34 * @param permissions The list of LightPermInfos representing the permissions this package defines 35 * @param requestedPermissions The names of the permissions this package requests 36 * @param requestedPermissionsFlags The grant state of the permissions this package requests 37 * @param uid The UID of this package 38 * @param targetSdkVersion The target SDK of this package 39 * @param isInstantApp Whether or not this package is an instant app 40 * @param enabled Whether or not this package is enabled. 41 */ 42 data class LightPackageInfo( 43 val packageName: String, 44 val permissions: List<LightPermInfo>, 45 val requestedPermissions: List<String>, 46 val requestedPermissionsFlags: List<Int>, 47 val uid: Int, 48 val targetSdkVersion: Int, 49 val isInstantApp: Boolean, 50 val enabled: Boolean, 51 val appFlags: Int, 52 val firstInstallTime: Long, 53 val lastUpdateTime: Long, 54 val areAttributionsUserVisible: Boolean, 55 val attributionTagsToLabels: Map<String, Int> 56 ) { 57 constructor( 58 pI: PackageInfo 59 ) : this( 60 pI.packageName, 61 pI.permissions?.map { perm -> LightPermInfo(perm) } ?: emptyList(), 62 pI.requestedPermissions?.toList() ?: emptyList(), 63 pI.requestedPermissionsFlags?.toList() ?: emptyList(), 64 pI.applicationInfo.uid, 65 pI.applicationInfo.targetSdkVersion, 66 pI.applicationInfo.isInstantApp, 67 pI.applicationInfo.enabled, 68 pI.applicationInfo.flags, 69 pI.firstInstallTime, 70 pI.lastUpdateTime, 71 if (SdkLevel.isAtLeastS()) pI.applicationInfo.areAttributionsUserVisible() else false, 72 if (SdkLevel.isAtLeastS()) buildAttributionTagsToLabelsMap(pI.attributions) else emptyMap()) 73 74 /** Permissions which are granted according to the [requestedPermissionsFlags] */ 75 val grantedPermissions: List<String> 76 get() { 77 val grantedPermissions = mutableListOf<String>() 78 for (i in 0 until requestedPermissions.size) { 79 if ((requestedPermissionsFlags[i] and PackageInfo.REQUESTED_PERMISSION_GRANTED) != 80 0) { 81 grantedPermissions.add(requestedPermissions[i]) 82 } 83 } 84 return grantedPermissions 85 } 86 87 /** 88 * Gets the ApplicationInfo for this package from the system. Can be expensive if called too 89 * often. 90 * 91 * @param app The current application, which will be used to get the ApplicationInfo 92 * 93 * @return The ApplicationInfo corresponding to this package, with this UID, or null, if no such 94 * package exists 95 */ 96 fun getApplicationInfo(app: Application): ApplicationInfo? { 97 try { 98 val userContext = Utils.getUserContext(app, UserHandle.getUserHandleForUid(uid)) 99 return userContext.packageManager.getApplicationInfo(packageName, 0) 100 } catch (e: PackageManager.NameNotFoundException) {} 101 return null 102 } 103 104 /** 105 * Gets the PackageInfo for this package from the system. Can be expensive if called too often. 106 * 107 * @param app The current application, which will be used to get the PackageInfo 108 * @return The PackageInfo corresponding to this package, with this UID, or null, if no such 109 * package exists 110 */ 111 fun toPackageInfo(app: Application): PackageInfo? { 112 try { 113 val userContext = Utils.getUserContext(app, UserHandle.getUserHandleForUid(uid)) 114 return userContext.packageManager.getPackageInfo( 115 packageName, PackageManager.GET_PERMISSIONS) 116 } catch (e: PackageManager.NameNotFoundException) {} 117 return null 118 } 119 120 /** Companion object for [LightPackageInfo]. */ 121 companion object { 122 /** Creates a mapping of attribution tag to labels from the provided attributions. */ 123 fun buildAttributionTagsToLabelsMap(attributions: Array<Attribution>?): Map<String, Int> { 124 val attributionTagToLabel = mutableMapOf<String, Int>() 125 attributions?.forEach { attributionTagToLabel[it.tag] = it.label } 126 127 return attributionTagToLabel.toMap() 128 } 129 } 130 } 131