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/*
* 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.app.Application
import android.content.pm.PackageManager
import android.content.pm.PermissionInfo
import android.os.Build
import android.os.UserHandle
import com.android.permissioncontroller.PermissionControllerApplication
import com.android.permissioncontroller.permission.utils.Utils
/**
* LiveData with a map representing the runtime permissions a group requests and all of the
* installed, non-runtime, normal protection permissions. Key is the group name or
* NON_RUNTIME_NORMAL_PERMS, value is the requested runtime permissions in that group (or all
* installed non-runtime normal protection permissions, for NON_RUNTME_NORMAL_PERMS).
*
* @param app The current Application
* @param packageName The name of the package this LiveData will watch for mode changes for
* @param user The user for whom the packageInfo will be defined
*/
class PackagePermissionsLiveData private constructor(
private val app: Application,
packageName: String,
user: UserHandle
) : SmartUpdateMediatorLiveData<Map<String, List<String>>?>() {
private val packageInfoLiveData = LightPackageInfoLiveData[packageName, user]
init {
addSource(packageInfoLiveData) {
if (packageInfoLiveData.isInitialized && packageInfoLiveData.value == null) {
invalidateSingle(packageName to user)
value = null
return@addSource
}
update()
}
}
override fun onUpdate() {
val packageInfo = packageInfoLiveData.value ?: return
val permissionMap = mutableMapOf<String, MutableList<String>>()
for (permName in packageInfo.requestedPermissions) {
val permInfo = try {
app.packageManager.getPermissionInfo(permName, 0)
} catch (e: PackageManager.NameNotFoundException) {
continue
}
if (permInfo.flags and PermissionInfo.FLAG_INSTALLED == 0 ||
permInfo.flags and PermissionInfo.FLAG_REMOVED != 0) {
continue
}
if (packageInfo.isInstantApp && permInfo.protectionFlags and
PermissionInfo.PROTECTION_FLAG_INSTANT == 0) {
continue
}
if (packageInfo.targetSdkVersion < Build.VERSION_CODES.M &&
(permInfo.protectionFlags and PermissionInfo.PROTECTION_FLAG_RUNTIME_ONLY) != 0) {
continue
}
// If this permission is a non-runtime, normal permission, add it to the "non runtime"
// group
if (permInfo.protection != PermissionInfo.PROTECTION_DANGEROUS) {
if (permInfo.protection == PermissionInfo.PROTECTION_NORMAL) {
val otherPermsList =
permissionMap.getOrPut(NON_RUNTIME_NORMAL_PERMS) { mutableListOf() }
otherPermsList.add(permInfo.name)
}
continue
}
val groupName = Utils.getGroupOfPermission(permInfo) ?: permInfo.name
if (!permissionMap.containsKey(groupName)) {
permissionMap[groupName] = mutableListOf()
}
permissionMap[groupName]?.add(permInfo.name)
}
value = permissionMap
}
/**
* Repository for PackagePermissionsLiveData objects
* <p> Key value is a string package name and userHandle, value is its corresponding LiveData.
*/
companion object : DataRepositoryForPackage<Pair<String, UserHandle>,
PackagePermissionsLiveData>() {
override fun newValue(key: Pair<String, UserHandle>):
PackagePermissionsLiveData {
return PackagePermissionsLiveData(PermissionControllerApplication.get(), key.first,
key.second)
}
const val NON_RUNTIME_NORMAL_PERMS = "nonRuntimeNormalPerms"
}
}
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