1 /* 2 * Copyright (C) 2015 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 package com.android.voicemail.impl.sms; 17 18 import android.annotation.TargetApi; 19 import android.content.BroadcastReceiver; 20 import android.content.ContentUris; 21 import android.content.Context; 22 import android.content.Intent; 23 import android.net.Uri; 24 import android.os.Build.VERSION_CODES; 25 import android.os.Bundle; 26 import android.os.UserManager; 27 import android.telecom.PhoneAccountHandle; 28 import android.telephony.VisualVoicemailSms; 29 import com.android.voicemail.impl.ActivationTask; 30 import com.android.voicemail.impl.OmtpConstants; 31 import com.android.voicemail.impl.OmtpService; 32 import com.android.voicemail.impl.OmtpVvmCarrierConfigHelper; 33 import com.android.voicemail.impl.Voicemail; 34 import com.android.voicemail.impl.Voicemail.Builder; 35 import com.android.voicemail.impl.VvmLog; 36 import com.android.voicemail.impl.protocol.VisualVoicemailProtocol; 37 import com.android.voicemail.impl.settings.VisualVoicemailSettingsUtil; 38 import com.android.voicemail.impl.sync.OmtpVvmSyncService; 39 import com.android.voicemail.impl.sync.SyncOneTask; 40 import com.android.voicemail.impl.sync.SyncTask; 41 import com.android.voicemail.impl.sync.VoicemailsQueryHelper; 42 import com.android.voicemail.impl.utils.VoicemailDatabaseUtil; 43 44 /** Receive SMS messages and send for processing by the OMTP visual voicemail source. */ 45 @TargetApi(VERSION_CODES.O) 46 public class OmtpMessageReceiver extends BroadcastReceiver { 47 48 private static final String TAG = "OmtpMessageReceiver"; 49 50 private Context mContext; 51 52 @Override onReceive(Context context, Intent intent)53 public void onReceive(Context context, Intent intent) { 54 mContext = context; 55 VisualVoicemailSms sms = intent.getExtras().getParcelable(OmtpService.EXTRA_VOICEMAIL_SMS); 56 PhoneAccountHandle phone = sms.getPhoneAccountHandle(); 57 58 if (phone == null) { 59 // This should never happen 60 VvmLog.i(TAG, "Received message for null phone account"); 61 return; 62 } 63 64 if (!context.getSystemService(UserManager.class).isUserUnlocked()) { 65 VvmLog.i(TAG, "Received message on locked device"); 66 // LegacyModeSmsHandler can handle new message notifications without storage access 67 LegacyModeSmsHandler.handle(context, sms); 68 // A full sync will happen after the device is unlocked, so nothing else need to be 69 // done. 70 return; 71 } 72 73 OmtpVvmCarrierConfigHelper helper = new OmtpVvmCarrierConfigHelper(mContext, phone); 74 if (!helper.isValid()) { 75 VvmLog.e(TAG, "vvm config no longer valid"); 76 return; 77 } 78 if (!VisualVoicemailSettingsUtil.isEnabled(mContext, phone)) { 79 if (helper.isLegacyModeEnabled()) { 80 LegacyModeSmsHandler.handle(context, sms); 81 } else { 82 VvmLog.i(TAG, "Received vvm message for disabled vvm source."); 83 } 84 return; 85 } 86 87 String eventType = sms.getPrefix(); 88 Bundle data = sms.getFields(); 89 90 if (eventType == null || data == null) { 91 VvmLog.e(TAG, "Unparsable VVM SMS received, ignoring"); 92 return; 93 } 94 95 if (eventType.equals(OmtpConstants.SYNC_SMS_PREFIX)) { 96 SyncMessage message = new SyncMessage(data); 97 98 VvmLog.v( 99 TAG, "Received SYNC sms for " + phone + " with event " + message.getSyncTriggerEvent()); 100 processSync(phone, message); 101 } else if (eventType.equals(OmtpConstants.STATUS_SMS_PREFIX)) { 102 VvmLog.v(TAG, "Received Status sms for " + phone); 103 // If the STATUS SMS is initiated by ActivationTask the TaskSchedulerService will reject 104 // the follow request. Providing the data will also prevent ActivationTask from 105 // requesting another STATUS SMS. The following task will only run if the carrier 106 // spontaneous send a STATUS SMS, in that case, the VVM service should be reactivated. 107 ActivationTask.start(context, phone, data); 108 } else { 109 VvmLog.w(TAG, "Unknown prefix: " + eventType); 110 VisualVoicemailProtocol protocol = helper.getProtocol(); 111 if (protocol == null) { 112 return; 113 } 114 Bundle statusData = helper.getProtocol().translateStatusSmsBundle(helper, eventType, data); 115 if (statusData != null) { 116 VvmLog.i(TAG, "Protocol recognized the SMS as STATUS, activating"); 117 ActivationTask.start(context, phone, data); 118 } 119 } 120 } 121 122 /** 123 * A sync message has two purposes: to signal a new voicemail message, and to indicate the 124 * voicemails on the server have changed remotely (usually through the TUI). Save the new message 125 * to the voicemail provider if it is the former case and perform a full sync in the latter case. 126 * 127 * @param message The sync message to extract data from. 128 */ processSync(PhoneAccountHandle phone, SyncMessage message)129 private void processSync(PhoneAccountHandle phone, SyncMessage message) { 130 switch (message.getSyncTriggerEvent()) { 131 case OmtpConstants.NEW_MESSAGE: 132 if (!OmtpConstants.VOICE.equals(message.getContentType())) { 133 VvmLog.i( 134 TAG, 135 "Non-voice message of type '" + message.getContentType() + "' received, ignoring"); 136 return; 137 } 138 139 Builder builder = 140 Voicemail.createForInsertion(message.getTimestampMillis(), message.getSender()) 141 .setPhoneAccount(phone) 142 .setSourceData(message.getId()) 143 .setDuration(message.getLength()) 144 .setSourcePackage(mContext.getPackageName()); 145 Voicemail voicemail = builder.build(); 146 147 VoicemailsQueryHelper queryHelper = new VoicemailsQueryHelper(mContext); 148 if (queryHelper.isVoicemailUnique(voicemail)) { 149 Uri uri = VoicemailDatabaseUtil.insert(mContext, voicemail); 150 voicemail = builder.setId(ContentUris.parseId(uri)).setUri(uri).build(); 151 SyncOneTask.start(mContext, phone, voicemail); 152 } 153 break; 154 case OmtpConstants.MAILBOX_UPDATE: 155 SyncTask.start(mContext, phone, OmtpVvmSyncService.SYNC_DOWNLOAD_ONLY); 156 break; 157 case OmtpConstants.GREETINGS_UPDATE: 158 // Not implemented in V1 159 break; 160 default: 161 VvmLog.e(TAG, "Unrecognized sync trigger event: " + message.getSyncTriggerEvent()); 162 break; 163 } 164 } 165 } 166