1 /*
<lambda>null2  * Copyright (C) 2022 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.hibernation.v31
18 
19 import android.content.pm.PackageManager
20 import android.os.Build
21 import android.os.UserHandle
22 import androidx.annotation.RequiresApi
23 import com.android.permissioncontroller.DumpableLog
24 import com.android.permissioncontroller.PermissionControllerApplication
25 import com.android.permissioncontroller.permission.data.AllPackageInfosLiveData
26 import com.android.permissioncontroller.permission.data.DataRepositoryForPackage
27 import com.android.permissioncontroller.permission.data.SmartAsyncMediatorLiveData
28 import kotlinx.coroutines.Job
29 
30 /** Packages that are the installer of record for some package on the device. */
31 @RequiresApi(Build.VERSION_CODES.S)
32 class InstallerPackagesLiveData(private val user: UserHandle) :
33     SmartAsyncMediatorLiveData<Set<String>>() {
34 
35     init {
36         addSource(AllPackageInfosLiveData) { update() }
37     }
38 
39     override suspend fun loadDataAndPostValue(job: Job) {
40         if (job.isCancelled) {
41             return
42         }
43         if (!AllPackageInfosLiveData.isInitialized) {
44             return
45         }
46         val userPackageInfos = AllPackageInfosLiveData.value!![user]
47         val installerPackages = mutableSetOf<String>()
48         val packageManager = PermissionControllerApplication.get().packageManager
49 
50         userPackageInfos!!.forEach { pkgInfo ->
51             try {
52                 val installerPkg =
53                     packageManager.getInstallSourceInfo(pkgInfo.packageName).installingPackageName
54                 if (installerPkg != null) {
55                     installerPackages.add(installerPkg)
56                 }
57             } catch (e: PackageManager.NameNotFoundException) {
58                 DumpableLog.w(LOG_TAG, "Unable to find installer source info", e)
59             }
60         }
61 
62         postValue(installerPackages)
63     }
64 
65     /**
66      * Repository for installer packages
67      *
68      * <p> Key value is user
69      */
70     companion object : DataRepositoryForPackage<UserHandle, InstallerPackagesLiveData>() {
71         override fun newValue(key: UserHandle): InstallerPackagesLiveData {
72             return InstallerPackagesLiveData(key)
73         }
74     }
75 }
76