1 /*
2  * Copyright (C) 2020 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.statementservice.domain.worker
18 
19 import android.content.Context
20 import android.util.Log
21 import androidx.work.Data
22 import androidx.work.OneTimeWorkRequest
23 import androidx.work.OneTimeWorkRequestBuilder
24 import androidx.work.WorkerParameters
25 import com.android.statementservice.database.DomainGroups
26 import com.android.statementservice.utils.AndroidUtils
27 import com.android.statementservice.utils.StatementUtils
28 import kotlinx.coroutines.coroutineScope
29 
30 class SingleV1RequestWorker(appContext: Context, params: WorkerParameters) :
31     BaseRequestWorker(appContext, params) {
32 
33     companion object {
34         private val TAG = SingleV1RequestWorker::class.java.simpleName
35         private const val DEBUG = false
36 
37         private const val PACKAGE_NAME_KEY = "packageName"
38         private const val HOST_KEY = "host"
39         const val HOST_SUCCESS_PREFIX = "hostSuccess:"
40         const val HOST_FAILURE_PREFIX = "hostFailure:"
41 
buildRequestnull42         fun buildRequest(
43             packageName: String,
44             host: String,
45             block: OneTimeWorkRequest.Builder.() -> Unit = {}
46         ) = OneTimeWorkRequestBuilder<SingleV1RequestWorker>()
47             .setInputData(
48                 Data.Builder()
49                     .putString(PACKAGE_NAME_KEY, packageName)
50                     .putString(HOST_KEY, host)
51                     .build()
52             )
53             .apply(block)
54             .build()
55     }
56 
<lambda>null57     override suspend fun doWork() = coroutineScope {
58         if (!AndroidUtils.isReceiverV1Enabled(appContext)) {
59             return@coroutineScope Result.success()
60         }
61 
62         val packageName = params.inputData.getString(PACKAGE_NAME_KEY)!!
63         val host = params.inputData.getString(HOST_KEY)!!
64 
65         database.clear(packageName, host)
66 
67         val (result, status, statement) = verifier.verifyHost(host, packageName, params.network)
68 
69         if (DEBUG) {
70             Log.d(
71                 TAG, "Domain verification v1 request for $packageName: " +
72                         "host = $host, status = $status"
73             )
74         }
75 
76         // Coerce failure results into success so that final collection task gets a chance to run
77         when (result) {
78             is Result.Success -> {
79                 val deContext = appContext.createDeviceProtectedStorageContext()
80                 val sp = deContext?.getSharedPreferences(packageName, Context.MODE_PRIVATE)
81                 sp?.edit()?.putInt("$HOST_SUCCESS_PREFIX$host", status.value)?.apply()
82                 val groups = statement?.dynamicAppLinkComponents.orEmpty().map {
83                     StatementUtils.createUriRelativeFilterGroup(it)
84                 }
85                 database.insertDomainGroups(DomainGroups(packageName, host, groups))
86                 Result.success()
87             }
88             is Result.Failure -> {
89                 val deContext = appContext.createDeviceProtectedStorageContext()
90                 val sp = deContext?.getSharedPreferences(packageName, Context.MODE_PRIVATE)
91                 sp?.edit()?.putInt("$HOST_FAILURE_PREFIX$host", status.value)?.apply()
92                 Result.success()
93             }
94             else -> result
95         }
96     }
97 }
98