1 /*
2  * Copyright (C) 2023 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.pandora
18 
19 import android.content.Context
20 import android.telephony.SmsManager
21 import android.telephony.SubscriptionManager
22 import android.telephony.TelephonyManager
23 import com.google.protobuf.Empty
24 import io.grpc.stub.StreamObserver
25 import kotlinx.coroutines.CoroutineScope
26 import kotlinx.coroutines.Dispatchers
27 import pandora.MapGrpc.MapImplBase
28 import pandora.MapProto.*
29 
30 private const val TAG = "PandoraMap"
31 
32 class Map(context: Context) : MapImplBase() {
33     private val DEFAULT_MESSAGE_LEN = 130
34 
35     private val scope: CoroutineScope = CoroutineScope(Dispatchers.Default.limitedParallelism(1))
36     private var telephonyManager = context.getSystemService(TelephonyManager::class.java)!!
37 
sendSMSnull38     override fun sendSMS(request: Empty, responseObserver: StreamObserver<Empty>) {
39         grpcUnary<Empty>(scope, responseObserver) {
40             val smsManager = SmsManager.getDefault()
41             val defaultSmsSub = SubscriptionManager.getDefaultSmsSubscriptionId()
42             telephonyManager = telephonyManager.createForSubscriptionId(defaultSmsSub)
43             val avdPhoneNumber = telephonyManager.getLine1Number()
44 
45             smsManager.sendTextMessage(
46                 avdPhoneNumber,
47                 avdPhoneNumber,
48                 generateAlphanumericString(DEFAULT_MESSAGE_LEN),
49                 null,
50                 null
51             )
52             Empty.getDefaultInstance()
53         }
54     }
55 }
56