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/*
* Copyright (C) 2022 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.ui.model.v33
import android.app.Application
import android.content.Intent
import android.graphics.drawable.Drawable
import android.icu.lang.UCharacter
import android.os.Build
import android.os.UserHandle
import android.text.BidiFormatter
import androidx.annotation.RequiresApi
import androidx.lifecycle.ViewModel
import androidx.lifecycle.ViewModelProvider
import com.android.permissioncontroller.DumpableLog
import com.android.permissioncontroller.R
import com.android.permissioncontroller.permission.utils.PermissionMapping
import com.android.permissioncontroller.permission.data.SmartAsyncMediatorLiveData
import com.android.permissioncontroller.permission.data.UserPackageInfosLiveData
import com.android.permissioncontroller.permission.data.v33.PermissionDecision
import com.android.permissioncontroller.permission.data.v33.RecentPermissionDecisionsLiveData
import com.android.permissioncontroller.permission.model.livedatatypes.LightPackageInfo
import com.android.permissioncontroller.permission.ui.ManagePermissionsActivity
import com.android.permissioncontroller.permission.ui.auto.AutoReviewPermissionDecisionsFragment
import com.android.permissioncontroller.permission.utils.KotlinUtils
import com.android.permissioncontroller.permission.utils.StringUtils
import kotlinx.coroutines.Job
import java.util.concurrent.TimeUnit
/** Viewmodel for [ReviewPermissionDecisionsFragment] */
@RequiresApi(Build.VERSION_CODES.TIRAMISU)
class ReviewPermissionDecisionsViewModel(val app: Application, val user: UserHandle) : ViewModel() {
val LOG_TAG = "ReviewPermissionDecisionsViewModel"
private val recentPermissionsLiveData = RecentPermissionDecisionsLiveData()
private val userPackageInfosLiveData = UserPackageInfosLiveData[user]
val recentPermissionDecisionsLiveData = object
: SmartAsyncMediatorLiveData<List<PermissionDecision>>(
alwaysUpdateOnActive = false
) {
init {
addSource(recentPermissionsLiveData) {
onUpdate()
}
addSource(userPackageInfosLiveData) {
onUpdate()
}
}
override suspend fun loadDataAndPostValue(job: Job) {
if (!recentPermissionsLiveData.isInitialized ||
!userPackageInfosLiveData.isInitialized) {
return
}
// create package info lookup map for performance
val packageToLightPackageInfo: MutableMap<String, LightPackageInfo> = mutableMapOf()
for (lightPackageInfo in userPackageInfosLiveData.value!!) {
packageToLightPackageInfo[lightPackageInfo.packageName] = lightPackageInfo
}
// verify that permission state is still correct. Will also filter out any apps that
// were uninstalled
val decisionsToReview: MutableList<PermissionDecision> = mutableListOf()
for (recentDecision in recentPermissionsLiveData.value!!) {
val lightPackageInfo = packageToLightPackageInfo[recentDecision.packageName]
if (lightPackageInfo == null) {
DumpableLog.e(LOG_TAG, "Package $recentDecision.packageName " +
"is no longer installed")
continue
}
val grantedGroups: List<String?> = lightPackageInfo.grantedPermissions.map {
PermissionMapping.getGroupOfPermission(
app.packageManager.getPermissionInfo(it, /* flags= */ 0))
}
val currentlyGranted = grantedGroups.contains(recentDecision.permissionGroupName)
if (currentlyGranted && recentDecision.isGranted) {
decisionsToReview.add(recentDecision)
} else if (!currentlyGranted && !recentDecision.isGranted) {
decisionsToReview.add(recentDecision)
} else {
// It's okay for this to happen - the state could change due to role changes,
// app hibernation, or other non-user-driven actions.
DumpableLog.d(LOG_TAG,
"Permission decision grant state (${recentDecision.isGranted}) " +
"for ${recentDecision.packageName} access to " +
"${recentDecision.permissionGroupName} does not match current " +
"grant state $currentlyGranted")
}
}
postValue(decisionsToReview)
}
}
fun getAppIcon(packageName: String): Drawable? {
return KotlinUtils.getBadgedPackageIcon(app, packageName, user)
}
fun createPreferenceTitle(permissionDecision: PermissionDecision): String {
val packageLabel = BidiFormatter.getInstance().unicodeWrap(
KotlinUtils.getPackageLabel(app, permissionDecision.packageName, user))
val permissionGroupLabel = KotlinUtils.getPermGroupLabel(app,
permissionDecision.permissionGroupName).toString()
return if (permissionDecision.isGranted) {
app.getString(R.string.granted_permission_decision, packageLabel,
UCharacter.toLowerCase(permissionGroupLabel))
} else {
app.getString(R.string.denied_permission_decision, packageLabel,
UCharacter.toLowerCase(permissionGroupLabel))
}
}
fun createManageAppPermissionIntent(permissionDecision: PermissionDecision): Intent {
return Intent(Intent.ACTION_MANAGE_APP_PERMISSION).apply {
putExtra(Intent.EXTRA_PACKAGE_NAME, permissionDecision.packageName)
putExtra(Intent.EXTRA_PERMISSION_NAME, permissionDecision.permissionGroupName)
putExtra(Intent.EXTRA_USER, user)
putExtra(ManagePermissionsActivity.EXTRA_CALLER_NAME,
AutoReviewPermissionDecisionsFragment::class.java.name)
}
}
fun createSummaryText(permissionDecision: PermissionDecision): String {
val diff = System.currentTimeMillis() - permissionDecision.eventTime
val daysAgo = TimeUnit.DAYS.convert(diff, TimeUnit.MILLISECONDS).toInt()
return StringUtils.getIcuPluralsString(app, R.string.days_ago, daysAgo)
}
}
/**
* Factory for a [ReviewPermissionDecisionsViewModel]
*/
@RequiresApi(Build.VERSION_CODES.TIRAMISU)
class ReviewPermissionDecisionsViewModelFactory(val app: Application, val user: UserHandle) :
ViewModelProvider.Factory {
override fun <T : ViewModel> create(modelClass: Class<T>): T {
@Suppress("UNCHECKED_CAST")
return ReviewPermissionDecisionsViewModel(app, user) as T
}
}
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