1 /*
2  * 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.keyguard
18 
19 import android.content.res.Resources
20 import android.os.Build
21 import android.os.PowerManager
22 import com.android.systemui.Dumpable
23 import com.android.systemui.R
24 import com.android.systemui.dagger.SysUISingleton
25 import com.android.systemui.dagger.qualifiers.Main
26 import com.android.systemui.dump.DumpManager
27 import com.android.systemui.util.settings.GlobalSettings
28 import java.io.PrintWriter
29 import java.util.stream.Collectors
30 import javax.inject.Inject
31 
32 /** Determines which device wake-ups should trigger passive authentication. */
33 @SysUISingleton
34 class FaceWakeUpTriggersConfig
35 @Inject
36 constructor(@Main resources: Resources, globalSettings: GlobalSettings, dumpManager: DumpManager) :
37     Dumpable {
38     private val defaultTriggerFaceAuthOnWakeUpFrom: Set<Int> =
39         resources.getIntArray(R.array.config_face_auth_wake_up_triggers).toSet()
40     private val triggerFaceAuthOnWakeUpFrom: Set<Int>
41 
42     init {
43         triggerFaceAuthOnWakeUpFrom =
44             if (Build.IS_DEBUGGABLE) {
45                 // Update face wake triggers via adb on debuggable builds:
46                 // ie: adb shell settings put global face_wake_triggers "1\|4" &&
47                 //     adb shell am crash com.android.systemui
48                 processStringArray(
49                     globalSettings.getString("face_wake_triggers"),
50                     defaultTriggerFaceAuthOnWakeUpFrom
51                 )
52             } else {
53                 defaultTriggerFaceAuthOnWakeUpFrom
54             }
55         dumpManager.registerDumpable(this)
56     }
57 
58     fun shouldTriggerFaceAuthOnWakeUpFrom(@PowerManager.WakeReason pmWakeReason: Int): Boolean {
59         return triggerFaceAuthOnWakeUpFrom.contains(pmWakeReason)
60     }
61 
62     override fun dump(pw: PrintWriter, args: Array<out String>) {
63         pw.println("FaceWakeUpTriggers:")
64         for (pmWakeReason in triggerFaceAuthOnWakeUpFrom) {
65             pw.println("    ${PowerManager.wakeReasonToString(pmWakeReason)}")
66         }
67     }
68 
69     /** Convert a pipe-separated set of integers into a set of ints. */
70     private fun processStringArray(stringSetting: String?, default: Set<Int>): Set<Int> {
71         return stringSetting?.let {
72             stringSetting.split("|").stream().map(Integer::parseInt).collect(Collectors.toSet())
73         }
74             ?: default
75     }
76 }
77