| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.cellbroadcastreceiver; |
| |
| import android.app.ActivityManager; |
| import android.app.Notification; |
| import android.app.NotificationChannel; |
| import android.app.NotificationManager; |
| import android.app.PendingIntent; |
| import android.app.Service; |
| import android.content.ContentValues; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.SharedPreferences; |
| import android.content.pm.PackageManager; |
| import android.content.res.Resources; |
| import android.media.AudioAttributes; |
| import android.media.AudioManager; |
| import android.os.Binder; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Looper; |
| import android.os.SystemProperties; |
| import android.os.UserHandle; |
| import android.preference.PreferenceManager; |
| import android.provider.Telephony; |
| import android.service.notification.StatusBarNotification; |
| import android.telephony.PhoneStateListener; |
| import android.telephony.SmsCbEtwsInfo; |
| import android.telephony.SmsCbMessage; |
| import android.telephony.SubscriptionManager; |
| import android.telephony.TelephonyManager; |
| import android.text.TextUtils; |
| import android.util.Log; |
| |
| import com.android.cellbroadcastreceiver.CellBroadcastChannelManager.CellBroadcastChannelRange; |
| import com.android.internal.annotations.VisibleForTesting; |
| |
| import java.util.ArrayList; |
| import java.util.Locale; |
| |
| /** |
| * This service manages the display and animation of broadcast messages. |
| * Emergency messages display with a flashing animated exclamation mark icon, |
| * and an alert tone is played when the alert is first shown to the user |
| * (but not when the user views a previously received broadcast). |
| */ |
| public class CellBroadcastAlertService extends Service |
| implements AudioManager.OnAudioFocusChangeListener { |
| private static final String TAG = "CBAlertService"; |
| |
| /** Intent action to display alert dialog/notification, after verifying the alert is new. */ |
| @VisibleForTesting |
| public static final String SHOW_NEW_ALERT_ACTION = "cellbroadcastreceiver.SHOW_NEW_ALERT"; |
| |
| /** Identifier for getExtra() when adding this object to an Intent. */ |
| public static final String SMS_CB_MESSAGE_EXTRA = |
| "com.android.cellbroadcastreceiver.SMS_CB_MESSAGE"; |
| |
| /** Use the same notification ID for non-emergency alerts. */ |
| static final int NOTIFICATION_ID = 1; |
| |
| /** |
| * Notification channel containing for non-emergency alerts. |
| */ |
| static final String NOTIFICATION_CHANNEL_NON_EMERGENCY_ALERTS = "broadcastMessagesNonEmergency"; |
| |
| /** |
| * Notification channel for emergency alerts. This is used when users sneak out of the |
| * noisy pop-up for a real emergency and get a notification due to not officially acknowledged |
| * the alert and want to refer it back later. |
| */ |
| static final String NOTIFICATION_CHANNEL_EMERGENCY_ALERTS = "broadcastMessages"; |
| |
| /** |
| * Notification channel for emergency alerts during voice call. This is used when users in a |
| * voice call, emergency alert will be displayed in a notification format rather than playing |
| * alert tone. |
| */ |
| static final String NOTIFICATION_CHANNEL_EMERGENCY_ALERTS_IN_VOICECALL = |
| "broadcastMessagesInVoiceCall"; |
| |
| /** Intent extra for passing a SmsCbMessage */ |
| private static final String EXTRA_MESSAGE = "message"; |
| |
| /** |
| * Key for accessing message filter from SystemProperties. For testing use. |
| */ |
| private static final String MESSAGE_FILTER_PROPERTY_KEY = |
| "persist.cellbroadcast.message_filter"; |
| |
| private Context mContext; |
| |
| /** |
| * Alert type |
| */ |
| public enum AlertType { |
| DEFAULT, |
| ETWS_DEFAULT, |
| ETWS_EARTHQUAKE, |
| ETWS_TSUNAMI, |
| TEST, |
| AREA, |
| INFO, |
| OTHER |
| } |
| |
| private TelephonyManager mTelephonyManager; |
| private AudioManager mAudioManager; |
| |
| /** |
| * Do not preempt active voice call, instead post notifications and play the ringtone/vibrate |
| * when the voicecall finish |
| */ |
| private static boolean sRemindAfterCallFinish = false; |
| |
| |
| @Override |
| public int onStartCommand(Intent intent, int flags, int startId) { |
| mContext = getApplicationContext(); |
| String action = intent.getAction(); |
| Log.d(TAG, "onStartCommand: " + action); |
| if (Telephony.Sms.Intents.ACTION_SMS_EMERGENCY_CB_RECEIVED.equals(action) || |
| Telephony.Sms.Intents.SMS_CB_RECEIVED_ACTION.equals(action)) { |
| handleCellBroadcastIntent(intent); |
| } else if (SHOW_NEW_ALERT_ACTION.equals(action)) { |
| if (UserHandle.myUserId() == ((ActivityManager) getSystemService( |
| Context.ACTIVITY_SERVICE)).getCurrentUser()) { |
| showNewAlert(intent); |
| } else { |
| Log.d(TAG, "Not active user, ignore the alert display"); |
| } |
| } else { |
| Log.e(TAG, "Unrecognized intent action: " + action); |
| } |
| return START_NOT_STICKY; |
| } |
| |
| @Override |
| public void onCreate() { |
| mTelephonyManager = (TelephonyManager) |
| getApplicationContext().getSystemService(Context.TELEPHONY_SERVICE); |
| mTelephonyManager.listen(mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE); |
| mAudioManager = (AudioManager) |
| getApplicationContext().getSystemService(Context.AUDIO_SERVICE); |
| } |
| |
| @Override |
| public void onDestroy() { |
| // Stop listening for incoming calls. |
| mTelephonyManager.listen(mPhoneStateListener, 0); |
| |
| } |
| |
| /** |
| * Check if we should display the received cell broadcast message. |
| * |
| * @param message Cell broadcast message |
| * @return True if the message should be displayed to the user |
| */ |
| private boolean shouldDisplayMessage(SmsCbMessage message) { |
| TelephonyManager tm = ((TelephonyManager) mContext.getSystemService( |
| Context.TELEPHONY_SERVICE)).createForSubscriptionId(message.getSubscriptionId()); |
| if (tm.getEmergencyCallbackMode() && CellBroadcastSettings.getResources( |
| mContext, message.getSubscriptionId()).getBoolean(R.bool.ignore_messages_in_ecbm)) { |
| // Ignore the message in ECBM. |
| // It is for LTE only mode. For 1xRTT, incoming pages should be ignored in the modem. |
| Log.d(TAG, "ignoring alert of type " + message.getServiceCategory() + " in ECBM"); |
| return false; |
| } |
| // Check if the channel is enabled by the user or configuration. |
| if (!isChannelEnabled(message)) { |
| Log.d(TAG, "ignoring alert of type " + message.getServiceCategory() |
| + " by user preference"); |
| return false; |
| } |
| |
| // Check if message body is empty |
| String msgBody = message.getMessageBody(); |
| if (msgBody == null || msgBody.length() == 0) { |
| Log.e(TAG, "Empty content or Unsupported charset"); |
| return false; |
| } |
| |
| // Check if we need to perform language filtering. |
| CellBroadcastChannelManager channelManager = new CellBroadcastChannelManager(mContext, |
| message.getSubscriptionId()); |
| CellBroadcastChannelRange range = channelManager |
| .getCellBroadcastChannelRangeFromMessage(message); |
| String messageLanguage = message.getLanguageCode(); |
| if (range != null && range.mFilterLanguage) { |
| // language filtering based on CBR second language settings |
| final String secondLanguageCode = CellBroadcastSettings.getResources(mContext, |
| SubscriptionManager.DEFAULT_SUBSCRIPTION_ID) |
| .getString(R.string.emergency_alert_second_language_code); |
| if (!secondLanguageCode.isEmpty()) { |
| SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this); |
| boolean receiveInSecondLanguage = prefs.getBoolean( |
| CellBroadcastSettings.KEY_RECEIVE_CMAS_IN_SECOND_LANGUAGE, false); |
| // For DCS values that bit 6 is 1 and bit 7 is 0, language field is not defined so |
| // ap receives it as null value and so alert is not shown to the user. |
| // bypass language filter in this case. |
| if (!TextUtils.isEmpty(messageLanguage) |
| && !secondLanguageCode.equalsIgnoreCase(messageLanguage)) { |
| Log.w(TAG, "Ignoring message in the unspecified second language:" |
| + messageLanguage); |
| return false; |
| } else if (!receiveInSecondLanguage) { |
| Log.d(TAG, "Ignoring message in second language because setting is off"); |
| return false; |
| } |
| } else { |
| // language filtering based on device language settings. |
| String deviceLanguage = Locale.getDefault().getLanguage(); |
| // Apply If the message's language does not match device's message, we don't |
| // display the message. |
| if (!TextUtils.isEmpty(messageLanguage) |
| && !messageLanguage.equalsIgnoreCase(deviceLanguage)) { |
| Log.d(TAG, "ignoring the alert due to language mismatch. Message lang=" |
| + messageLanguage + ", device lang=" + deviceLanguage); |
| return false; |
| } |
| } |
| } |
| |
| // Check for custom filtering |
| String messageFilters = SystemProperties.get(MESSAGE_FILTER_PROPERTY_KEY, ""); |
| if (!TextUtils.isEmpty(messageFilters)) { |
| String[] filters = messageFilters.split(","); |
| for (String filter : filters) { |
| if (!TextUtils.isEmpty(filter)) { |
| if (message.getMessageBody().toLowerCase().contains(filter)) { |
| Log.i(TAG, "Skipped message due to filter: " + filter); |
| return false; |
| } |
| } |
| } |
| } |
| |
| return true; |
| } |
| |
| private void handleCellBroadcastIntent(Intent intent) { |
| Bundle extras = intent.getExtras(); |
| if (extras == null) { |
| Log.e(TAG, "received SMS_CB_RECEIVED_ACTION with no extras!"); |
| return; |
| } |
| |
| SmsCbMessage message = (SmsCbMessage) extras.get(EXTRA_MESSAGE); |
| |
| if (message == null) { |
| Log.e(TAG, "received SMS_CB_RECEIVED_ACTION with no message extra"); |
| return; |
| } |
| |
| if (!shouldDisplayMessage(message)) { |
| return; |
| } |
| |
| final Intent alertIntent = new Intent(SHOW_NEW_ALERT_ACTION); |
| alertIntent.setClass(this, CellBroadcastAlertService.class); |
| alertIntent.putExtra(EXTRA_MESSAGE, message); |
| |
| // write to database on a background thread |
| new CellBroadcastContentProvider.AsyncCellBroadcastTask(getContentResolver()) |
| .execute((CellBroadcastContentProvider.CellBroadcastOperation) provider -> { |
| if (provider.insertNewBroadcast(message)) { |
| // new message, show the alert or notification on UI thread |
| startService(alertIntent); |
| return true; |
| } else { |
| return false; |
| } |
| }); |
| } |
| |
| /** |
| * Mark the message as displayed in cell broadcast service's database. |
| * |
| * @param message The cell broadcast message. |
| */ |
| private void markMessageDisplayed(SmsCbMessage message) { |
| ContentValues cv = new ContentValues(); |
| cv.put(Telephony.CellBroadcasts.MESSAGE_DISPLAYED, 1); |
| mContext.getContentResolver().update(Telephony.CellBroadcasts.CONTENT_URI, cv, |
| Telephony.CellBroadcasts.RECEIVED_TIME + "=?", |
| new String[] {Long.toString(message.getReceivedTime())}); |
| } |
| |
| private void showNewAlert(Intent intent) { |
| Bundle extras = intent.getExtras(); |
| if (extras == null) { |
| Log.e(TAG, "received SHOW_NEW_ALERT_ACTION with no extras!"); |
| return; |
| } |
| |
| SmsCbMessage cbm = intent.getParcelableExtra(EXTRA_MESSAGE); |
| |
| if (cbm == null) { |
| Log.e(TAG, "received SHOW_NEW_ALERT_ACTION with no message extra"); |
| return; |
| } |
| |
| if (mTelephonyManager.getCallState() != TelephonyManager.CALL_STATE_IDLE |
| && CellBroadcastSettings.getResources(mContext, cbm.getSubscriptionId()) |
| .getBoolean(R.bool.enable_alert_handling_during_call)) { |
| Log.d(TAG, "CMAS received in dialing/during voicecall."); |
| sRemindAfterCallFinish = true; |
| } |
| |
| // Either shown the dialog, adding it to notification (non emergency, or delayed emergency), |
| // mark the message as displayed to the user. |
| markMessageDisplayed(cbm); |
| |
| CellBroadcastChannelManager channelManager = new CellBroadcastChannelManager( |
| mContext, cbm.getSubscriptionId()); |
| if (channelManager.isEmergencyMessage(cbm) && !sRemindAfterCallFinish) { |
| // start alert sound / vibration / TTS and display full-screen alert |
| openEmergencyAlertNotification(cbm); |
| } else { |
| // add notification to the bar by passing the list of unread non-emergency |
| // cell broadcast messages |
| ArrayList<SmsCbMessage> messageList = CellBroadcastReceiverApp |
| .addNewMessageToList(cbm); |
| addToNotificationBar(cbm, messageList, this, false); |
| } |
| } |
| |
| /** |
| * Check if the message's channel is enabled on the device. |
| * |
| * @param message the message to check |
| * @return true if the channel is enabled on the device, otherwise false. |
| */ |
| private boolean isChannelEnabled(SmsCbMessage message) { |
| |
| SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this); |
| // Check if all emergency alerts are disabled. |
| boolean emergencyAlertEnabled = |
| prefs.getBoolean(CellBroadcastSettings.KEY_ENABLE_ALERTS_MASTER_TOGGLE, true); |
| |
| SmsCbEtwsInfo etwsInfo = message.getEtwsWarningInfo(); |
| if (etwsInfo != null |
| && etwsInfo.getWarningType() == SmsCbEtwsInfo.ETWS_WARNING_TYPE_TEST_MESSAGE) { |
| return emergencyAlertEnabled |
| && CellBroadcastSettings.isTestAlertsToggleVisible(getApplicationContext()) |
| && PreferenceManager.getDefaultSharedPreferences(this) |
| .getBoolean(CellBroadcastSettings.KEY_ENABLE_TEST_ALERTS, false); |
| } |
| |
| if (message.isEtwsMessage()) { |
| // ETWS messages. |
| // Turn on/off emergency notifications is the only way to turn on/off ETWS messages. |
| return emergencyAlertEnabled; |
| |
| } |
| |
| int channel = message.getServiceCategory(); |
| |
| // Check if the messages are on additional channels enabled by the resource config. |
| // If those channels are enabled by the carrier, but the device is actually roaming, we |
| // should not allow the messages. |
| CellBroadcastChannelManager channelManager = new CellBroadcastChannelManager( |
| mContext, message.getSubscriptionId()); |
| ArrayList<CellBroadcastChannelRange> ranges = channelManager.getCellBroadcastChannelRanges( |
| R.array.additional_cbs_channels_strings); |
| |
| for (CellBroadcastChannelRange range : ranges) { |
| if (range.mStartId <= channel && range.mEndId >= channel) { |
| // Check if the channel is within the scope. If not, ignore the alert message. |
| if (!channelManager.checkScope(range.mScope)) { |
| Log.d(TAG, "The range [" + range.mStartId + "-" + range.mEndId |
| + "] is not within the scope. mScope = " + range.mScope); |
| return false; |
| } |
| |
| if (range.mAlertType == AlertType.TEST) { |
| return emergencyAlertEnabled |
| && CellBroadcastSettings.isTestAlertsToggleVisible( |
| getApplicationContext()) |
| && PreferenceManager.getDefaultSharedPreferences(this) |
| .getBoolean(CellBroadcastSettings.KEY_ENABLE_TEST_ALERTS, |
| false); |
| } |
| |
| return emergencyAlertEnabled; |
| } |
| } |
| |
| if (channelManager.checkCellBroadcastChannelRange(channel, |
| R.array.emergency_alerts_channels_range_strings)) { |
| return emergencyAlertEnabled |
| && PreferenceManager.getDefaultSharedPreferences(this).getBoolean( |
| CellBroadcastSettings.KEY_ENABLE_EMERGENCY_ALERTS, true); |
| } |
| // CMAS warning types |
| if (channelManager.checkCellBroadcastChannelRange(channel, |
| R.array.cmas_presidential_alerts_channels_range_strings)) { |
| // always enabled |
| return true; |
| } |
| if (channelManager.checkCellBroadcastChannelRange(channel, |
| R.array.cmas_alert_extreme_channels_range_strings)) { |
| return emergencyAlertEnabled |
| && PreferenceManager.getDefaultSharedPreferences(this).getBoolean( |
| CellBroadcastSettings.KEY_ENABLE_CMAS_EXTREME_THREAT_ALERTS, true); |
| } |
| if (channelManager.checkCellBroadcastChannelRange(channel, |
| R.array.cmas_alerts_severe_range_strings)) { |
| return emergencyAlertEnabled |
| && PreferenceManager.getDefaultSharedPreferences(this).getBoolean( |
| CellBroadcastSettings.KEY_ENABLE_CMAS_SEVERE_THREAT_ALERTS, true); |
| } |
| if (channelManager.checkCellBroadcastChannelRange(channel, |
| R.array.cmas_amber_alerts_channels_range_strings)) { |
| return emergencyAlertEnabled |
| && PreferenceManager.getDefaultSharedPreferences(this) |
| .getBoolean(CellBroadcastSettings.KEY_ENABLE_CMAS_AMBER_ALERTS, true); |
| } |
| |
| if (channelManager.checkCellBroadcastChannelRange(channel, |
| R.array.exercise_alert_range_strings) |
| && getResources().getBoolean(R.bool.always_enable_exercise_alert)) { |
| return true; |
| } |
| |
| if (channelManager.checkCellBroadcastChannelRange(channel, |
| R.array.required_monthly_test_range_strings) |
| || channelManager.checkCellBroadcastChannelRange(channel, |
| R.array.exercise_alert_range_strings) |
| || channelManager.checkCellBroadcastChannelRange(channel, |
| R.array.operator_defined_alert_range_strings)) { |
| return emergencyAlertEnabled |
| && CellBroadcastSettings.isTestAlertsToggleVisible(getApplicationContext()) |
| && PreferenceManager.getDefaultSharedPreferences(this) |
| .getBoolean(CellBroadcastSettings.KEY_ENABLE_TEST_ALERTS, |
| false); |
| } |
| |
| if (channelManager.checkCellBroadcastChannelRange(channel, |
| R.array.public_safety_messages_channels_range_strings)) { |
| return emergencyAlertEnabled |
| && PreferenceManager.getDefaultSharedPreferences(this) |
| .getBoolean(CellBroadcastSettings.KEY_ENABLE_PUBLIC_SAFETY_MESSAGES, |
| true); |
| } |
| |
| if (channelManager.checkCellBroadcastChannelRange(channel, |
| R.array.state_local_test_alert_range_strings)) { |
| return emergencyAlertEnabled |
| && PreferenceManager.getDefaultSharedPreferences(this) |
| .getBoolean(CellBroadcastSettings.KEY_ENABLE_STATE_LOCAL_TEST_ALERTS, |
| false); |
| } |
| |
| return true; |
| } |
| |
| /** |
| * Display an alert message for emergency alerts. |
| * @param message the alert to display |
| */ |
| private void openEmergencyAlertNotification(SmsCbMessage message) { |
| // Close dialogs and window shade |
| Intent closeDialogs = new Intent(Intent.ACTION_CLOSE_SYSTEM_DIALOGS); |
| sendBroadcast(closeDialogs); |
| |
| // start audio/vibration/speech service for emergency alerts |
| Intent audioIntent = new Intent(this, CellBroadcastAlertAudio.class); |
| audioIntent.setAction(CellBroadcastAlertAudio.ACTION_START_ALERT_AUDIO); |
| SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this); |
| |
| CellBroadcastChannelManager channelManager = new CellBroadcastChannelManager( |
| mContext, message.getSubscriptionId()); |
| |
| AlertType alertType = AlertType.DEFAULT; |
| if (message.isEtwsMessage()) { |
| alertType = AlertType.ETWS_DEFAULT; |
| |
| if (message.getEtwsWarningInfo() != null) { |
| int warningType = message.getEtwsWarningInfo().getWarningType(); |
| |
| switch (warningType) { |
| case SmsCbEtwsInfo.ETWS_WARNING_TYPE_EARTHQUAKE: |
| case SmsCbEtwsInfo.ETWS_WARNING_TYPE_EARTHQUAKE_AND_TSUNAMI: |
| alertType = AlertType.ETWS_EARTHQUAKE; |
| break; |
| case SmsCbEtwsInfo.ETWS_WARNING_TYPE_TSUNAMI: |
| alertType = AlertType.ETWS_TSUNAMI; |
| break; |
| case SmsCbEtwsInfo.ETWS_WARNING_TYPE_TEST_MESSAGE: |
| alertType = AlertType.TEST; |
| break; |
| case SmsCbEtwsInfo.ETWS_WARNING_TYPE_OTHER_EMERGENCY: |
| alertType = AlertType.OTHER; |
| break; |
| } |
| } |
| } else { |
| int channel = message.getServiceCategory(); |
| ArrayList<CellBroadcastChannelRange> ranges = channelManager |
| .getAllCellBroadcastChannelRanges(); |
| for (CellBroadcastChannelRange range : ranges) { |
| if (channel >= range.mStartId && channel <= range.mEndId) { |
| alertType = range.mAlertType; |
| break; |
| } |
| } |
| } |
| CellBroadcastChannelRange range = channelManager |
| .getCellBroadcastChannelRangeFromMessage(message); |
| audioIntent.putExtra(CellBroadcastAlertAudio.ALERT_AUDIO_TONE_TYPE, alertType); |
| audioIntent.putExtra( |
| CellBroadcastAlertAudio.ALERT_AUDIO_VIBRATION_PATTERN_EXTRA, |
| (range != null) |
| ? range.mVibrationPattern |
| : CellBroadcastSettings.getResources(mContext, message.getSubscriptionId()) |
| .getIntArray(R.array.default_vibration_pattern)); |
| |
| if (prefs.getBoolean(CellBroadcastSettings.KEY_OVERRIDE_DND, false) |
| || (range != null && range.mOverrideDnd)) { |
| audioIntent.putExtra(CellBroadcastAlertAudio.ALERT_AUDIO_OVERRIDE_DND_EXTRA, true); |
| } |
| |
| String messageBody = message.getMessageBody(); |
| |
| audioIntent.putExtra(CellBroadcastAlertAudio.ALERT_AUDIO_MESSAGE_BODY, messageBody); |
| |
| String language = message.getLanguageCode(); |
| |
| Log.d(TAG, "Message language = " + language); |
| audioIntent.putExtra(CellBroadcastAlertAudio.ALERT_AUDIO_MESSAGE_LANGUAGE, |
| language); |
| |
| audioIntent.putExtra(CellBroadcastAlertAudio.ALERT_AUDIO_SUB_INDEX, |
| message.getSubscriptionId()); |
| audioIntent.putExtra(CellBroadcastAlertAudio.ALERT_AUDIO_DURATION, |
| (range != null) ? range.mAlertDuration : -1); |
| startService(audioIntent); |
| |
| ArrayList<SmsCbMessage> messageList = new ArrayList<>(); |
| messageList.add(message); |
| |
| // For FEATURE_WATCH, the dialog doesn't make sense from a UI/UX perspective |
| if (getPackageManager().hasSystemFeature(PackageManager.FEATURE_WATCH)) { |
| addToNotificationBar(message, messageList, this, false); |
| } else { |
| Intent alertDialogIntent = createDisplayMessageIntent(this, |
| CellBroadcastAlertDialog.class, messageList); |
| alertDialogIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); |
| startActivity(alertDialogIntent); |
| } |
| |
| } |
| |
| /** |
| * Add the new alert to the notification bar (non-emergency alerts), or launch a |
| * high-priority immediate intent for emergency alerts. |
| * @param message the alert to display |
| */ |
| static void addToNotificationBar(SmsCbMessage message, |
| ArrayList<SmsCbMessage> messageList, Context context, |
| boolean fromSaveState) { |
| Resources res = CellBroadcastSettings.getResources(context, message.getSubscriptionId()); |
| int channelTitleId = CellBroadcastResources.getDialogTitleResource(context, message); |
| CharSequence channelName = context.getText(channelTitleId); |
| String messageBody = message.getMessageBody(); |
| final NotificationManager notificationManager = |
| (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE); |
| createNotificationChannels(context); |
| |
| // Create intent to show the new messages when user selects the notification. |
| Intent intent; |
| if (context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_WATCH)) { |
| // For FEATURE_WATCH we want to mark as read |
| intent = createMarkAsReadIntent(context, message.getReceivedTime()); |
| } else { |
| // For anything else we handle it normally |
| intent = createDisplayMessageIntent(context, CellBroadcastAlertDialog.class, |
| messageList); |
| } |
| |
| intent.putExtra(CellBroadcastAlertDialog.FROM_NOTIFICATION_EXTRA, true); |
| intent.putExtra(CellBroadcastAlertDialog.FROM_SAVE_STATE_NOTIFICATION_EXTRA, fromSaveState); |
| |
| PendingIntent pi; |
| if (context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_WATCH)) { |
| pi = PendingIntent.getBroadcast(context, 0, intent, 0); |
| } else { |
| pi = PendingIntent.getActivity(context, NOTIFICATION_ID, intent, |
| PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT); |
| } |
| CellBroadcastChannelManager channelManager = new CellBroadcastChannelManager( |
| context, message.getSubscriptionId()); |
| |
| String channelId = channelManager.isEmergencyMessage(message) |
| ? NOTIFICATION_CHANNEL_EMERGENCY_ALERTS : NOTIFICATION_CHANNEL_NON_EMERGENCY_ALERTS; |
| if (channelId == NOTIFICATION_CHANNEL_EMERGENCY_ALERTS && sRemindAfterCallFinish) { |
| channelId = NOTIFICATION_CHANNEL_EMERGENCY_ALERTS_IN_VOICECALL; |
| } |
| |
| boolean nonSwipeableNotification = message.isEmergencyMessage() |
| && CellBroadcastSettings.getResources(context, message.getSubscriptionId()) |
| .getBoolean(R.bool.non_swipeable_notification) || sRemindAfterCallFinish; |
| |
| // use default sound/vibration/lights for non-emergency broadcasts |
| Notification.Builder builder = |
| new Notification.Builder(context, channelId) |
| .setSmallIcon(R.drawable.ic_warning_googred) |
| .setTicker(channelName) |
| .setWhen(System.currentTimeMillis()) |
| .setCategory(Notification.CATEGORY_SYSTEM) |
| .setPriority(Notification.PRIORITY_HIGH) |
| .setColor(res.getColor(R.color.notification_color)) |
| .setVisibility(Notification.VISIBILITY_PUBLIC) |
| .setOngoing(nonSwipeableNotification); |
| |
| if (context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_WATCH)) { |
| builder.setDeleteIntent(pi); |
| // FEATURE_WATCH/CWH devices see this as priority |
| builder.setVibrate(new long[]{0}); |
| } else { |
| builder.setContentIntent(pi); |
| // This will break vibration on FEATURE_WATCH, so use it for anything else |
| builder.setDefaults(Notification.DEFAULT_ALL); |
| } |
| |
| // increment unread alert count (decremented when user dismisses alert dialog) |
| int unreadCount = messageList.size(); |
| if (unreadCount > 1) { |
| // use generic count of unread broadcasts if more than one unread |
| builder.setContentTitle(context.getString(R.string.notification_multiple_title)); |
| builder.setContentText(context.getString(R.string.notification_multiple, unreadCount)); |
| } else { |
| builder.setContentTitle(channelName) |
| .setContentText(messageBody) |
| .setStyle(new Notification.BigTextStyle() |
| .bigText(messageBody)); |
| } |
| |
| notificationManager.notify(NOTIFICATION_ID, builder.build()); |
| |
| // FEATURE_WATCH devices do not have global sounds for notifications; only vibrate. |
| // TW requires sounds for 911/919 |
| // Emergency messages use a different audio playback and display path. Since we use |
| // addToNotification for the emergency display on FEATURE WATCH devices vs the |
| // Alert Dialog, it will call this and override the emergency audio tone. |
| if (context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_WATCH) |
| && !channelManager.isEmergencyMessage(message)) { |
| if (res.getBoolean(R.bool.watch_enable_non_emergency_audio)) { |
| // start audio/vibration/speech service for non emergency alerts |
| Intent audioIntent = new Intent(context, CellBroadcastAlertAudio.class); |
| audioIntent.setAction(CellBroadcastAlertAudio.ACTION_START_ALERT_AUDIO); |
| audioIntent.putExtra(CellBroadcastAlertAudio.ALERT_AUDIO_TONE_TYPE, |
| AlertType.OTHER); |
| context.startService(audioIntent); |
| } |
| } |
| |
| } |
| |
| /** |
| * Creates the notification channel and registers it with NotificationManager. If a channel |
| * with the same ID is already registered, NotificationManager will ignore this call. |
| */ |
| static void createNotificationChannels(Context context) { |
| NotificationManager notificationManager = |
| (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE); |
| notificationManager.createNotificationChannel( |
| new NotificationChannel( |
| NOTIFICATION_CHANNEL_EMERGENCY_ALERTS, |
| context.getString(R.string.notification_channel_emergency_alerts), |
| NotificationManager.IMPORTANCE_LOW)); |
| final NotificationChannel nonEmergency = new NotificationChannel( |
| NOTIFICATION_CHANNEL_NON_EMERGENCY_ALERTS, |
| context.getString(R.string.notification_channel_broadcast_messages), |
| NotificationManager.IMPORTANCE_DEFAULT); |
| nonEmergency.enableVibration(true); |
| notificationManager.createNotificationChannel(nonEmergency); |
| |
| final NotificationChannel emergencyAlertInVoiceCall = new NotificationChannel( |
| NOTIFICATION_CHANNEL_EMERGENCY_ALERTS_IN_VOICECALL, |
| context.getString(R.string.notification_channel_broadcast_messages_in_voicecall), |
| NotificationManager.IMPORTANCE_HIGH); |
| emergencyAlertInVoiceCall.enableVibration(true); |
| notificationManager.createNotificationChannel(emergencyAlertInVoiceCall); |
| } |
| |
| private static Intent createDisplayMessageIntent(Context context, Class intentClass, |
| ArrayList<SmsCbMessage> messageList) { |
| // Trigger the list activity to fire up a dialog that shows the received messages |
| Intent intent = new Intent(context, intentClass); |
| intent.putParcelableArrayListExtra(CellBroadcastAlertService.SMS_CB_MESSAGE_EXTRA, |
| messageList); |
| return intent; |
| } |
| |
| /** |
| * Creates a delete intent that calls to the {@link CellBroadcastReceiver} in order to mark |
| * a message as read |
| * |
| * @param context context of the caller |
| * @param deliveryTime time the message was sent in order to mark as read |
| * @return delete intent to add to the pending intent |
| */ |
| static Intent createMarkAsReadIntent(Context context, long deliveryTime) { |
| Intent deleteIntent = new Intent(context, CellBroadcastReceiver.class); |
| deleteIntent.setAction(CellBroadcastReceiver.ACTION_MARK_AS_READ); |
| deleteIntent.putExtra(CellBroadcastReceiver.EXTRA_DELIVERY_TIME, deliveryTime); |
| return deleteIntent; |
| } |
| |
| @VisibleForTesting |
| @Override |
| public IBinder onBind(Intent intent) { |
| return new LocalBinder(); |
| } |
| |
| @VisibleForTesting |
| class LocalBinder extends Binder { |
| public CellBroadcastAlertService getService() { |
| return CellBroadcastAlertService.this; |
| } |
| } |
| |
| @Override |
| public void onAudioFocusChange(int focusChange) { |
| if(focusChange == AudioManager.AUDIOFOCUS_GAIN) { |
| Log.d(TAG, "audio focus released from voice call, play pending alert if needed"); |
| mAudioManager.abandonAudioFocus(this); |
| playPendingAlert(); |
| } |
| } |
| |
| /** |
| * Remove previous unread notifications and play stored unread |
| * emergency messages after voice call finish. |
| */ |
| private final PhoneStateListener mPhoneStateListener = new PhoneStateListener( |
| new Handler(Looper.getMainLooper())::post) { |
| @Override |
| public void onCallStateChanged(int state, String incomingNumber) { |
| |
| switch (state) { |
| case TelephonyManager.CALL_STATE_IDLE: |
| Log.d(TAG, "onCallStateChanged: CALL_STATE_IDLE"); |
| // check if audio focus was released by voice call. This is to avoid possible |
| // race conditions that voice call did not release audio focus while alert is |
| // playing at the same time (out-of-rhythm) |
| if (mAudioManager == null) { |
| mAudioManager = (AudioManager) |
| getApplicationContext().getSystemService(Context.AUDIO_SERVICE); |
| } |
| int audioFocusResult = mAudioManager.requestAudioFocus( |
| CellBroadcastAlertService.this::onAudioFocusChange, |
| new AudioAttributes.Builder().setLegacyStreamType( |
| AudioManager.STREAM_ALARM).build(), |
| AudioManager.AUDIOFOCUS_GAIN_TRANSIENT, |
| AudioManager.AUDIOFOCUS_FLAG_DELAY_OK); |
| if (audioFocusResult == AudioManager.AUDIOFOCUS_REQUEST_GRANTED) { |
| Log.d(TAG, "audio focus released from voice call, " |
| + "play pending alert if needed"); |
| mAudioManager.abandonAudioFocus( |
| CellBroadcastAlertService.this::onAudioFocusChange); |
| playPendingAlert(); |
| } else { |
| Log.d(TAG, "wait for audio focus release after call"); |
| } |
| break; |
| |
| default: |
| Log.d(TAG, "onCallStateChanged: other state = " + state); |
| break; |
| } |
| } |
| }; |
| |
| private void playPendingAlert() { |
| if (sRemindAfterCallFinish) { |
| sRemindAfterCallFinish = false; |
| NotificationManager notificationManager = (NotificationManager) |
| getApplicationContext().getSystemService( |
| Context.NOTIFICATION_SERVICE); |
| |
| StatusBarNotification[] notificationList = |
| notificationManager.getActiveNotifications(); |
| |
| if(notificationList != null && notificationList.length >0) { |
| notificationManager.cancel(CellBroadcastAlertService.NOTIFICATION_ID); |
| ArrayList<SmsCbMessage> newMessageList = |
| CellBroadcastReceiverApp.getNewMessageList(); |
| |
| for (int i = 0; i < newMessageList.size(); i++) { |
| openEmergencyAlertNotification(newMessageList.get(i)); |
| } |
| } |
| CellBroadcastReceiverApp.clearNewMessageList(); |
| } |
| } |
| } |
