Jordan Liu | 15605d1 | 2019-10-18 12:06:35 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 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.cellbroadcastservice; |
| 18 | |
| 19 | import android.Manifest; |
| 20 | import android.app.Activity; |
| 21 | import android.app.AppOpsManager; |
| 22 | import android.content.BroadcastReceiver; |
| 23 | import android.content.Context; |
| 24 | import android.content.Intent; |
| 25 | import android.os.Bundle; |
Jack Yu | e7591d3 | 2019-11-07 22:59:46 -0800 | [diff] [blame] | 26 | import android.os.Looper; |
Jordan Liu | 15605d1 | 2019-10-18 12:06:35 -0700 | [diff] [blame] | 27 | import android.os.Message; |
| 28 | import android.provider.Telephony.Sms.Intents; |
Jordan Liu | 15605d1 | 2019-10-18 12:06:35 -0700 | [diff] [blame] | 29 | import android.telephony.cdma.CdmaSmsCbProgramData; |
| 30 | |
| 31 | import java.util.ArrayList; |
| 32 | import java.util.concurrent.ConcurrentLinkedQueue; |
| 33 | import java.util.function.Consumer; |
| 34 | |
| 35 | /** |
| 36 | * Handle CDMA Service Category Program Data requests and responses. |
| 37 | */ |
| 38 | public final class CdmaServiceCategoryProgramHandler extends WakeLockStateMachine { |
| 39 | |
| 40 | // hold the callbacks provided from the framework, executed after SCP messages are broadcast |
| 41 | private ConcurrentLinkedQueue<Consumer<Bundle>> mScpCallback = new ConcurrentLinkedQueue<>(); |
| 42 | |
| 43 | /** |
| 44 | * Create a new CDMA inbound SMS handler. |
| 45 | */ |
| 46 | CdmaServiceCategoryProgramHandler(Context context) { |
Jack Yu | e7591d3 | 2019-11-07 22:59:46 -0800 | [diff] [blame] | 47 | super("CdmaServiceCategoryProgramHandler", context, Looper.myLooper()); |
Jordan Liu | 15605d1 | 2019-10-18 12:06:35 -0700 | [diff] [blame] | 48 | mContext = context; |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * Create a new State machine for SCPD requests. |
| 53 | * |
| 54 | * @param context the context to use |
| 55 | * @return the new SCPD handler |
| 56 | */ |
| 57 | static CdmaServiceCategoryProgramHandler makeScpHandler(Context context) { |
| 58 | CdmaServiceCategoryProgramHandler handler = new CdmaServiceCategoryProgramHandler( |
| 59 | context); |
| 60 | handler.start(); |
| 61 | return handler; |
| 62 | } |
| 63 | |
| 64 | /** |
| 65 | * Handle a CDMA SCP message. |
| 66 | * |
| 67 | * @param slotIndex the index of the slot which received the message |
| 68 | * @param programData the SMS CB program data of the message |
| 69 | * @param originatingAddress the originating address of the message |
| 70 | * @param callback a callback to run after each cell broadcast receiver has handled |
| 71 | * the SCP message |
| 72 | */ |
| 73 | public void onCdmaScpMessage(int slotIndex, ArrayList<CdmaSmsCbProgramData> programData, |
| 74 | String originatingAddress, Consumer<Bundle> callback) { |
| 75 | onCdmaCellBroadcastSms(new CdmaScpMessage(slotIndex, programData, originatingAddress, |
| 76 | callback)); |
| 77 | } |
| 78 | |
| 79 | /** |
| 80 | * Class for holding parts of a CDMA Service Program Category message. |
| 81 | */ |
| 82 | private class CdmaScpMessage { |
| 83 | int mSlotIndex; |
| 84 | ArrayList<CdmaSmsCbProgramData> mProgamData; |
| 85 | String mOriginatingAddress; |
| 86 | Consumer<Bundle> mCallback; |
| 87 | |
| 88 | CdmaScpMessage(int slotIndex, ArrayList<CdmaSmsCbProgramData> programData, |
| 89 | String originatingAddress, Consumer<Bundle> callback) { |
| 90 | mSlotIndex = slotIndex; |
| 91 | mProgamData = programData; |
| 92 | mOriginatingAddress = originatingAddress; |
| 93 | mCallback = callback; |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | |
| 98 | /** |
| 99 | * Handle Cell Broadcast messages from {@code CdmaInboundSmsHandler}. |
| 100 | * 3GPP-format Cell Broadcast messages sent from radio are handled in the subclass. |
| 101 | * |
| 102 | * @param message the message to process |
| 103 | * @return true if an ordered broadcast was sent; false on failure |
| 104 | */ |
| 105 | @Override |
| 106 | protected boolean handleSmsMessage(Message message) { |
| 107 | if (message.obj instanceof CdmaScpMessage) { |
| 108 | CdmaScpMessage cdmaScpMessage = (CdmaScpMessage) message.obj; |
| 109 | return handleServiceCategoryProgramData(cdmaScpMessage.mProgamData, |
| 110 | cdmaScpMessage.mOriginatingAddress, cdmaScpMessage.mSlotIndex, |
| 111 | cdmaScpMessage.mCallback); |
| 112 | } else { |
| 113 | loge("handleMessage got object of type: " + message.obj.getClass().getName()); |
| 114 | return false; |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | /** |
| 119 | * Send SCPD request to CellBroadcastReceiver as an ordered broadcast. |
| 120 | * |
| 121 | * @param programData the program data of the SCP message |
| 122 | * @param originatingAddress the address of the sender |
| 123 | * @param phoneId the phoneId that the message was received on |
| 124 | * @param callback a callback to run after each broadcast |
| 125 | * @return true if an ordered broadcast was sent; false on failure |
| 126 | */ |
| 127 | private boolean handleServiceCategoryProgramData(ArrayList<CdmaSmsCbProgramData> programData, |
| 128 | String originatingAddress, int phoneId, Consumer<Bundle> callback) { |
| 129 | if (programData == null) { |
| 130 | loge("handleServiceCategoryProgramData: program data list is null!"); |
| 131 | return false; |
| 132 | } |
| 133 | |
| 134 | Intent intent = new Intent(Intents.SMS_SERVICE_CATEGORY_PROGRAM_DATA_RECEIVED_ACTION); |
| 135 | intent.putExtra("sender", originatingAddress); |
| 136 | intent.putParcelableArrayListExtra("program_data", programData); |
Jordan Liu | cdfc9f3 | 2019-11-21 11:59:07 -0800 | [diff] [blame] | 137 | CellBroadcastHandler.putPhoneIdAndSubIdExtra(mContext, intent, phoneId); |
Jordan Liu | 15605d1 | 2019-10-18 12:06:35 -0700 | [diff] [blame] | 138 | |
| 139 | // TODO: move this resource and its overlays to the CellBroadcastService directory |
| 140 | String[] pkgs = mContext.getResources().getStringArray( |
Jordan Liu | f24590f | 2019-11-14 14:23:49 -0800 | [diff] [blame] | 141 | R.array.config_defaultCellBroadcastReceiverPkgs); |
Jordan Liu | 15605d1 | 2019-10-18 12:06:35 -0700 | [diff] [blame] | 142 | mReceiverCount.addAndGet(pkgs.length); |
| 143 | for (String pkg : pkgs) { |
| 144 | intent.setPackage(pkg); |
| 145 | mContext.sendOrderedBroadcast(intent, Manifest.permission.RECEIVE_SMS, |
| 146 | AppOpsManager.OP_RECEIVE_SMS, mScpResultsReceiver, |
| 147 | getHandler(), Activity.RESULT_OK, null, null); |
| 148 | mScpCallback.add(callback); |
| 149 | } |
| 150 | return true; |
| 151 | } |
| 152 | |
| 153 | /** |
| 154 | * Broadcast receiver to handle results of ordered broadcast. Sends the results back to the |
| 155 | * framework through a provided callback. |
| 156 | */ |
| 157 | private final BroadcastReceiver mScpResultsReceiver = new BroadcastReceiver() { |
| 158 | @Override |
| 159 | public void onReceive(Context context, Intent intent) { |
| 160 | int resultCode = getResultCode(); |
| 161 | if ((resultCode != Activity.RESULT_OK) && (resultCode != Intents.RESULT_SMS_HANDLED)) { |
| 162 | loge("SCP results error: result code = " + resultCode); |
| 163 | return; |
| 164 | } |
| 165 | Bundle extras = getResultExtras(false); |
| 166 | Consumer<Bundle> callback = mScpCallback.poll(); |
| 167 | callback.accept(extras); |
| 168 | if (DBG) log("mScpResultsReceiver finished"); |
| 169 | if (mReceiverCount.decrementAndGet() == 0) { |
| 170 | sendMessage(EVENT_BROADCAST_COMPLETE); |
| 171 | } |
| 172 | } |
| 173 | }; |
| 174 | } |