NotificationService.java

  1package eu.siacs.conversations.services;
  2
  3import android.app.Notification;
  4import android.app.NotificationChannel;
  5import android.app.NotificationChannelGroup;
  6import android.app.NotificationManager;
  7import android.app.PendingIntent;
  8import android.content.Context;
  9import android.content.Intent;
 10import android.content.SharedPreferences;
 11import android.content.res.Resources;
 12import android.graphics.Bitmap;
 13import android.graphics.Typeface;
 14import android.media.AudioAttributes;
 15import android.media.RingtoneManager;
 16import android.net.Uri;
 17import android.os.Build;
 18import android.os.SystemClock;
 19import android.preference.PreferenceManager;
 20import android.support.annotation.RequiresApi;
 21import android.support.v4.app.NotificationCompat;
 22import android.support.v4.app.NotificationCompat.BigPictureStyle;
 23import android.support.v4.app.NotificationCompat.Builder;
 24import android.support.v4.app.NotificationManagerCompat;
 25import android.support.v4.app.NotificationCompat.CarExtender.UnreadConversation;
 26import android.support.v4.app.RemoteInput;
 27import android.support.v4.content.ContextCompat;
 28import android.text.SpannableString;
 29import android.text.style.StyleSpan;
 30import android.util.DisplayMetrics;
 31import android.util.Log;
 32import android.util.Pair;
 33
 34import java.io.File;
 35import java.io.IOException;
 36import java.util.ArrayList;
 37import java.util.Calendar;
 38import java.util.Collections;
 39import java.util.HashMap;
 40import java.util.Iterator;
 41import java.util.LinkedHashMap;
 42import java.util.List;
 43import java.util.Map;
 44import java.util.concurrent.atomic.AtomicInteger;
 45import java.util.regex.Matcher;
 46import java.util.regex.Pattern;
 47
 48import eu.siacs.conversations.Config;
 49import eu.siacs.conversations.R;
 50import eu.siacs.conversations.entities.Account;
 51import eu.siacs.conversations.entities.Contact;
 52import eu.siacs.conversations.entities.Conversation;
 53import eu.siacs.conversations.entities.Conversational;
 54import eu.siacs.conversations.entities.Message;
 55import eu.siacs.conversations.persistance.FileBackend;
 56import eu.siacs.conversations.ui.ConversationsActivity;
 57import eu.siacs.conversations.ui.ManageAccountActivity;
 58import eu.siacs.conversations.ui.TimePreference;
 59import eu.siacs.conversations.utils.Compatibility;
 60import eu.siacs.conversations.utils.GeoHelper;
 61import eu.siacs.conversations.utils.UIHelper;
 62import eu.siacs.conversations.xmpp.XmppConnection;
 63
 64public class NotificationService {
 65
 66    public static final Object CATCHUP_LOCK = new Object();
 67
 68    private static final String CONVERSATIONS_GROUP = "eu.siacs.conversations";
 69    private static final int NOTIFICATION_ID_MULTIPLIER = 1024 * 1024;
 70    private static final int NOTIFICATION_ID = 2 * NOTIFICATION_ID_MULTIPLIER;
 71    public static final int FOREGROUND_NOTIFICATION_ID = NOTIFICATION_ID_MULTIPLIER * 4;
 72    private static final int ERROR_NOTIFICATION_ID = NOTIFICATION_ID_MULTIPLIER * 6;
 73    private final XmppConnectionService mXmppConnectionService;
 74    private final LinkedHashMap<String, ArrayList<Message>> notifications = new LinkedHashMap<>();
 75    private final HashMap<Conversation, AtomicInteger> mBacklogMessageCounter = new HashMap<>();
 76    private Conversation mOpenConversation;
 77    private boolean mIsInForeground;
 78    private long mLastNotification;
 79
 80    NotificationService(final XmppConnectionService service) {
 81        this.mXmppConnectionService = service;
 82    }
 83
 84    private static boolean displaySnoozeAction(List<Message> messages) {
 85        int numberOfMessagesWithoutReply = 0;
 86        for (Message message : messages) {
 87            if (message.getStatus() == Message.STATUS_RECEIVED) {
 88                ++numberOfMessagesWithoutReply;
 89            } else {
 90                return false;
 91            }
 92        }
 93        return numberOfMessagesWithoutReply >= 3;
 94    }
 95
 96    public static Pattern generateNickHighlightPattern(final String nick) {
 97        return Pattern.compile("(?<=(^|\\s))" + Pattern.quote(nick) + "\\b");
 98    }
 99
100    @RequiresApi(api = Build.VERSION_CODES.O)
101    public void initializeChannels() {
102        final Context c = mXmppConnectionService;
103        NotificationManager notificationManager = c.getSystemService(NotificationManager.class);
104        if (notificationManager == null) {
105            return;
106        }
107
108        notificationManager.createNotificationChannelGroup(new NotificationChannelGroup("status", c.getString(R.string.notification_group_status_information)));
109        notificationManager.createNotificationChannelGroup(new NotificationChannelGroup("chats", c.getString(R.string.notification_group_messages)));
110        final NotificationChannel foregroundServiceChannel = new NotificationChannel("foreground",
111                c.getString(R.string.foreground_service_channel_name),
112                NotificationManager.IMPORTANCE_MIN);
113        foregroundServiceChannel.setDescription(c.getString(R.string.foreground_service_channel_description));
114        foregroundServiceChannel.setShowBadge(false);
115        foregroundServiceChannel.setGroup("status");
116        notificationManager.createNotificationChannel(foregroundServiceChannel);
117        final NotificationChannel errorChannel = new NotificationChannel("error",
118                c.getString(R.string.error_channel_name),
119                NotificationManager.IMPORTANCE_LOW);
120        errorChannel.setDescription(c.getString(R.string.error_channel_description));
121        errorChannel.setShowBadge(false);
122        errorChannel.setGroup("status");
123        notificationManager.createNotificationChannel(errorChannel);
124
125        final NotificationChannel videoCompressionChannel = new NotificationChannel("compression",
126                c.getString(R.string.video_compression_channel_name),
127                NotificationManager.IMPORTANCE_LOW);
128        videoCompressionChannel.setShowBadge(false);
129        videoCompressionChannel.setGroup("status");
130        notificationManager.createNotificationChannel(videoCompressionChannel);
131
132        final NotificationChannel messagesChannel = new NotificationChannel("messages",
133                c.getString(R.string.messages_channel_name),
134                NotificationManager.IMPORTANCE_HIGH);
135        messagesChannel.setShowBadge(true);
136        messagesChannel.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION), new AudioAttributes.Builder()
137                .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
138                .setUsage(AudioAttributes.USAGE_NOTIFICATION_RINGTONE)
139                .build());
140        messagesChannel.setLightColor(0xff00ff00);
141        final int dat = 70;
142        final long[] pattern = {0, 3 * dat, dat, dat};
143        messagesChannel.setVibrationPattern(pattern);
144        messagesChannel.enableVibration(true);
145        messagesChannel.enableLights(true);
146        messagesChannel.setGroup("chats");
147        notificationManager.createNotificationChannel(messagesChannel);
148        final NotificationChannel silentMessagesChannel = new NotificationChannel("silent_messages",
149                c.getString(R.string.silent_messages_channel_name),
150                NotificationManager.IMPORTANCE_LOW);
151        silentMessagesChannel.setDescription(c.getString(R.string.silent_messages_channel_description));
152        silentMessagesChannel.setShowBadge(true);
153        silentMessagesChannel.setLightColor(0xff00ff00);
154        silentMessagesChannel.enableLights(true);
155        silentMessagesChannel.setGroup("chats");
156        notificationManager.createNotificationChannel(silentMessagesChannel);
157    }
158
159    public boolean notify(final Message message) {
160        final Conversation conversation = (Conversation) message.getConversation();
161        return message.getStatus() == Message.STATUS_RECEIVED
162                && !conversation.isMuted()
163                && (conversation.alwaysNotify() || wasHighlightedOrPrivate(message))
164                && (!conversation.isWithStranger() || notificationsFromStrangers())
165                ;
166    }
167
168    private boolean notificationsFromStrangers() {
169        return mXmppConnectionService.getBooleanPreference("notifications_from_strangers", R.bool.notifications_from_strangers);
170    }
171
172    private boolean isQuietHours() {
173        if (!mXmppConnectionService.getBooleanPreference("enable_quiet_hours", R.bool.enable_quiet_hours)) {
174            return false;
175        }
176        final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(mXmppConnectionService);
177        final long startTime = preferences.getLong("quiet_hours_start", TimePreference.DEFAULT_VALUE) % Config.MILLISECONDS_IN_DAY;
178        final long endTime = preferences.getLong("quiet_hours_end", TimePreference.DEFAULT_VALUE) % Config.MILLISECONDS_IN_DAY;
179        final long nowTime = Calendar.getInstance().getTimeInMillis() % Config.MILLISECONDS_IN_DAY;
180
181        if (endTime < startTime) {
182            return nowTime > startTime || nowTime < endTime;
183        } else {
184            return nowTime > startTime && nowTime < endTime;
185        }
186    }
187
188    public void pushFromBacklog(final Message message) {
189        if (notify(message)) {
190            synchronized (notifications) {
191                getBacklogMessageCounter((Conversation) message.getConversation()).incrementAndGet();
192                pushToStack(message);
193            }
194        }
195    }
196
197    private AtomicInteger getBacklogMessageCounter(Conversation conversation) {
198        synchronized (mBacklogMessageCounter) {
199            if (!mBacklogMessageCounter.containsKey(conversation)) {
200                mBacklogMessageCounter.put(conversation, new AtomicInteger(0));
201            }
202            return mBacklogMessageCounter.get(conversation);
203        }
204    }
205
206    public void pushFromDirectReply(final Message message) {
207        synchronized (notifications) {
208            pushToStack(message);
209            updateNotification(false);
210        }
211    }
212
213    public void finishBacklog(boolean notify, Account account) {
214        synchronized (notifications) {
215            mXmppConnectionService.updateUnreadCountBadge();
216            if (account == null || !notify) {
217                updateNotification(notify);
218            } else {
219                final int count;
220                final List<String> conversations;
221                synchronized (this.mBacklogMessageCounter) {
222                    conversations = getBacklogConversations(account);
223                    count = getBacklogMessageCount(account);
224                }
225                updateNotification(count > 0, conversations);
226            }
227        }
228    }
229
230    private List<String> getBacklogConversations(Account account) {
231        final List<String> conversations = new ArrayList<>();
232        for (Iterator<Map.Entry<Conversation, AtomicInteger>> it = mBacklogMessageCounter.entrySet().iterator(); it.hasNext(); ) {
233            Map.Entry<Conversation, AtomicInteger> entry = it.next();
234            if (entry.getKey().getAccount() == account) {
235                conversations.add(entry.getKey().getUuid());
236            }
237        }
238        return conversations;
239    }
240
241    private int getBacklogMessageCount(Account account) {
242        int count = 0;
243        for (Iterator<Map.Entry<Conversation, AtomicInteger>> it = mBacklogMessageCounter.entrySet().iterator(); it.hasNext(); ) {
244            Map.Entry<Conversation, AtomicInteger> entry = it.next();
245            if (entry.getKey().getAccount() == account) {
246                count += entry.getValue().get();
247                it.remove();
248            }
249        }
250        Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": backlog message count=" + count);
251        return count;
252    }
253
254    public void finishBacklog(boolean notify) {
255        finishBacklog(notify, null);
256    }
257
258    private void pushToStack(final Message message) {
259        final String conversationUuid = message.getConversationUuid();
260        if (notifications.containsKey(conversationUuid)) {
261            notifications.get(conversationUuid).add(message);
262        } else {
263            final ArrayList<Message> mList = new ArrayList<>();
264            mList.add(message);
265            notifications.put(conversationUuid, mList);
266        }
267    }
268
269    public void push(final Message message) {
270        synchronized (CATCHUP_LOCK) {
271            final XmppConnection connection = message.getConversation().getAccount().getXmppConnection();
272            if (connection != null && connection.isWaitingForSmCatchup()) {
273                connection.incrementSmCatchupMessageCounter();
274                pushFromBacklog(message);
275            } else {
276                pushNow(message);
277            }
278        }
279    }
280
281    private void pushNow(final Message message) {
282        mXmppConnectionService.updateUnreadCountBadge();
283        if (!notify(message)) {
284            Log.d(Config.LOGTAG, message.getConversation().getAccount().getJid().asBareJid() + ": suppressing notification because turned off");
285            return;
286        }
287        final boolean isScreenOn = mXmppConnectionService.isInteractive();
288        if (this.mIsInForeground && isScreenOn && this.mOpenConversation == message.getConversation()) {
289            Log.d(Config.LOGTAG, message.getConversation().getAccount().getJid().asBareJid() + ": suppressing notification because conversation is open");
290            return;
291        }
292        synchronized (notifications) {
293            pushToStack(message);
294            final Conversational conversation = message.getConversation();
295            final Account account = conversation.getAccount();
296            final boolean doNotify = (!(this.mIsInForeground && this.mOpenConversation == null) || !isScreenOn)
297                    && !account.inGracePeriod()
298                    && !this.inMiniGracePeriod(account);
299            updateNotification(doNotify, Collections.singletonList(conversation.getUuid()));
300        }
301    }
302
303    public void clear() {
304        synchronized (notifications) {
305            for (ArrayList<Message> messages : notifications.values()) {
306                markAsReadIfHasDirectReply(messages);
307            }
308            notifications.clear();
309            updateNotification(false);
310        }
311    }
312
313    public void clear(final Conversation conversation) {
314        synchronized (this.mBacklogMessageCounter) {
315            this.mBacklogMessageCounter.remove(conversation);
316        }
317        synchronized (notifications) {
318            markAsReadIfHasDirectReply(conversation);
319            if (notifications.remove(conversation.getUuid()) != null) {
320                cancel(conversation.getUuid(), NOTIFICATION_ID);
321                updateNotification(false, null, true);
322            }
323        }
324    }
325
326    private void markAsReadIfHasDirectReply(final Conversation conversation) {
327        markAsReadIfHasDirectReply(notifications.get(conversation.getUuid()));
328    }
329
330    private void markAsReadIfHasDirectReply(final ArrayList<Message> messages) {
331        if (messages != null && messages.size() > 0) {
332            Message last = messages.get(messages.size() - 1);
333            if (last.getStatus() != Message.STATUS_RECEIVED) {
334                if (mXmppConnectionService.markRead((Conversation) last.getConversation(), false)) {
335                    mXmppConnectionService.updateConversationUi();
336                }
337            }
338        }
339    }
340
341    private void setNotificationColor(final Builder mBuilder) {
342        mBuilder.setColor(ContextCompat.getColor(mXmppConnectionService, R.color.green600));
343    }
344
345    public void updateNotification(final boolean notify) {
346        updateNotification(notify, null, false);
347    }
348
349    public void updateNotification(final boolean notify, final List<String> conversations) {
350        updateNotification(notify, conversations, false);
351    }
352
353    private void updateNotification(final boolean notify, final List<String> conversations, final boolean summaryOnly) {
354        final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(mXmppConnectionService);
355
356        final boolean notifyOnlyOneChild = notify && conversations != null && conversations.size() == 1; //if this check is changed to > 0 catchup messages will create one notification per conversation
357
358        if (notifications.size() == 0) {
359            cancel(NOTIFICATION_ID);
360        } else {
361            if (notify) {
362                this.markLastNotification();
363            }
364            final Builder mBuilder;
365            if (notifications.size() == 1 && Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
366                mBuilder = buildSingleConversations(notifications.values().iterator().next(), notify);
367                modifyForSoundVibrationAndLight(mBuilder, notify, preferences);
368                notify(NOTIFICATION_ID, mBuilder.build());
369            } else {
370                mBuilder = buildMultipleConversation(notify);
371                if (notifyOnlyOneChild) {
372                    mBuilder.setGroupAlertBehavior(NotificationCompat.GROUP_ALERT_CHILDREN);
373                }
374                modifyForSoundVibrationAndLight(mBuilder, notify, preferences);
375                if (!summaryOnly) {
376                    for (Map.Entry<String, ArrayList<Message>> entry : notifications.entrySet()) {
377                        String uuid = entry.getKey();
378                        Builder singleBuilder = buildSingleConversations(entry.getValue(), notifyOnlyOneChild ? conversations.contains(uuid) : notify);
379                        if (!notifyOnlyOneChild) {
380                            singleBuilder.setGroupAlertBehavior(NotificationCompat.GROUP_ALERT_SUMMARY);
381                        }
382                        singleBuilder.setGroup(CONVERSATIONS_GROUP);
383                        setNotificationColor(singleBuilder);
384                        notify(entry.getKey(), NOTIFICATION_ID, singleBuilder.build());
385                    }
386                }
387                notify(NOTIFICATION_ID, mBuilder.build());
388            }
389        }
390    }
391
392    private void modifyForSoundVibrationAndLight(Builder mBuilder, boolean notify, SharedPreferences preferences) {
393        final Resources resources = mXmppConnectionService.getResources();
394        final String ringtone = preferences.getString("notification_ringtone", resources.getString(R.string.notification_ringtone));
395        final boolean vibrate = preferences.getBoolean("vibrate_on_notification", resources.getBoolean(R.bool.vibrate_on_notification));
396        final boolean led = preferences.getBoolean("led", resources.getBoolean(R.bool.led));
397        final boolean headsup = preferences.getBoolean("notification_headsup", resources.getBoolean(R.bool.headsup_notifications));
398        if (notify && !isQuietHours()) {
399            if (vibrate) {
400                final int dat = 70;
401                final long[] pattern = {0, 3 * dat, dat, dat};
402                mBuilder.setVibrate(pattern);
403            } else {
404                mBuilder.setVibrate(new long[]{0});
405            }
406            Uri uri = Uri.parse(ringtone);
407            try {
408                mBuilder.setSound(fixRingtoneUri(uri));
409            } catch (SecurityException e) {
410                Log.d(Config.LOGTAG, "unable to use custom notification sound " + uri.toString());
411            }
412        }
413        if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
414            mBuilder.setCategory(Notification.CATEGORY_MESSAGE);
415        }
416        mBuilder.setPriority(notify ? (headsup ? NotificationCompat.PRIORITY_HIGH : NotificationCompat.PRIORITY_DEFAULT) : NotificationCompat.PRIORITY_LOW);
417        setNotificationColor(mBuilder);
418        mBuilder.setDefaults(0);
419        if (led) {
420            mBuilder.setLights(0xff00FF00, 2000, 3000);
421        }
422    }
423
424    private Uri fixRingtoneUri(Uri uri) {
425        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N && "file".equals(uri.getScheme())) {
426            return FileBackend.getUriForFile(mXmppConnectionService, new File(uri.getPath()));
427        } else {
428            return uri;
429        }
430    }
431
432    private Builder buildMultipleConversation(final boolean notify) {
433        final Builder mBuilder = new NotificationCompat.Builder(mXmppConnectionService, notify ? "messages" : "silent_messages");
434        final NotificationCompat.InboxStyle style = new NotificationCompat.InboxStyle();
435        style.setBigContentTitle(notifications.size()
436                + " "
437                + mXmppConnectionService
438                .getString(R.string.unread_conversations));
439        final StringBuilder names = new StringBuilder();
440        Conversation conversation = null;
441        for (final ArrayList<Message> messages : notifications.values()) {
442            if (messages.size() > 0) {
443                conversation = (Conversation) messages.get(0).getConversation();
444                final String name = conversation.getName().toString();
445                SpannableString styledString;
446                if (Config.HIDE_MESSAGE_TEXT_IN_NOTIFICATION) {
447                    int count = messages.size();
448                    styledString = new SpannableString(name + ": " + mXmppConnectionService.getResources().getQuantityString(R.plurals.x_messages, count, count));
449                    styledString.setSpan(new StyleSpan(Typeface.BOLD), 0, name.length(), 0);
450                    style.addLine(styledString);
451                } else {
452                    styledString = new SpannableString(name + ": " + UIHelper.getMessagePreview(mXmppConnectionService, messages.get(0)).first);
453                    styledString.setSpan(new StyleSpan(Typeface.BOLD), 0, name.length(), 0);
454                    style.addLine(styledString);
455                }
456                names.append(name);
457                names.append(", ");
458            }
459        }
460        if (names.length() >= 2) {
461            names.delete(names.length() - 2, names.length());
462        }
463        mBuilder.setContentTitle(notifications.size()
464                + " "
465                + mXmppConnectionService
466                .getString(R.string.unread_conversations));
467        mBuilder.setContentText(names.toString());
468        mBuilder.setStyle(style);
469        if (conversation != null) {
470            mBuilder.setContentIntent(createContentIntent(conversation));
471        }
472        mBuilder.setGroupSummary(true);
473        mBuilder.setGroup(CONVERSATIONS_GROUP);
474        mBuilder.setDeleteIntent(createDeleteIntent(null));
475        mBuilder.setSmallIcon(R.drawable.ic_notification);
476        return mBuilder;
477    }
478
479    private Builder buildSingleConversations(final ArrayList<Message> messages, final boolean notify) {
480        final Builder mBuilder = new NotificationCompat.Builder(mXmppConnectionService, notify ? "messages" : "silent_messages");
481        if (messages.size() >= 1) {
482            final Conversation conversation = (Conversation) messages.get(0).getConversation();
483            final UnreadConversation.Builder mUnreadBuilder = new UnreadConversation.Builder(conversation.getName().toString());
484            mBuilder.setLargeIcon(mXmppConnectionService.getAvatarService()
485                    .get(conversation, getPixel(64)));
486            mBuilder.setContentTitle(conversation.getName());
487            if (Config.HIDE_MESSAGE_TEXT_IN_NOTIFICATION) {
488                int count = messages.size();
489                mBuilder.setContentText(mXmppConnectionService.getResources().getQuantityString(R.plurals.x_messages, count, count));
490            } else {
491                Message message;
492                if ((message = getImage(messages)) != null) {
493                    modifyForImage(mBuilder, mUnreadBuilder, message, messages);
494                } else {
495                    modifyForTextOnly(mBuilder, mUnreadBuilder, messages);
496                }
497                RemoteInput remoteInput = new RemoteInput.Builder("text_reply").setLabel(UIHelper.getMessageHint(mXmppConnectionService, conversation)).build();
498                PendingIntent markAsReadPendingIntent = createReadPendingIntent(conversation);
499                NotificationCompat.Action markReadAction = new NotificationCompat.Action.Builder(
500                        R.drawable.ic_drafts_white_24dp,
501                        mXmppConnectionService.getString(R.string.mark_as_read),
502                        markAsReadPendingIntent).build();
503                String replyLabel = mXmppConnectionService.getString(R.string.reply);
504                NotificationCompat.Action replyAction = new NotificationCompat.Action.Builder(
505                        R.drawable.ic_send_text_offline,
506                        replyLabel,
507                        createReplyIntent(conversation, false)).addRemoteInput(remoteInput).build();
508                NotificationCompat.Action wearReplyAction = new NotificationCompat.Action.Builder(R.drawable.ic_wear_reply,
509                        replyLabel,
510                        createReplyIntent(conversation, true)).addRemoteInput(remoteInput).build();
511                mBuilder.extend(new NotificationCompat.WearableExtender().addAction(wearReplyAction));
512                mUnreadBuilder.setReplyAction(createReplyIntent(conversation, true), remoteInput);
513                mUnreadBuilder.setReadPendingIntent(markAsReadPendingIntent);
514                mBuilder.extend(new NotificationCompat.CarExtender().setUnreadConversation(mUnreadBuilder.build()));
515                int addedActionsCount = 1;
516                mBuilder.addAction(markReadAction);
517                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
518                    mBuilder.addAction(replyAction);
519                    ++addedActionsCount;
520                }
521
522                if (displaySnoozeAction(messages)) {
523                    String label = mXmppConnectionService.getString(R.string.snooze);
524                    PendingIntent pendingSnoozeIntent = createSnoozeIntent(conversation);
525                    NotificationCompat.Action snoozeAction = new NotificationCompat.Action.Builder(
526                            R.drawable.ic_notifications_paused_white_24dp,
527                            label,
528                            pendingSnoozeIntent).build();
529                    mBuilder.addAction(snoozeAction);
530                    ++addedActionsCount;
531                }
532                if (addedActionsCount < 3) {
533                    final Message firstLocationMessage = getFirstLocationMessage(messages);
534                    if (firstLocationMessage != null) {
535                        String label = mXmppConnectionService.getResources().getString(R.string.show_location);
536                        PendingIntent pendingShowLocationIntent = createShowLocationIntent(firstLocationMessage);
537                        NotificationCompat.Action locationAction = new NotificationCompat.Action.Builder(
538                                R.drawable.ic_room_white_24dp,
539                                label,
540                                pendingShowLocationIntent).build();
541                        mBuilder.addAction(locationAction);
542                        ++addedActionsCount;
543                    }
544                }
545                if (addedActionsCount < 3) {
546                    Message firstDownloadableMessage = getFirstDownloadableMessage(messages);
547                    if (firstDownloadableMessage != null) {
548                        String label = mXmppConnectionService.getResources().getString(R.string.download_x_file, UIHelper.getFileDescriptionString(mXmppConnectionService, firstDownloadableMessage));
549                        PendingIntent pendingDownloadIntent = createDownloadIntent(firstDownloadableMessage);
550                        NotificationCompat.Action downloadAction = new NotificationCompat.Action.Builder(
551                                R.drawable.ic_file_download_white_24dp,
552                                label,
553                                pendingDownloadIntent).build();
554                        mBuilder.addAction(downloadAction);
555                        ++addedActionsCount;
556                    }
557                }
558            }
559            if (conversation.getMode() == Conversation.MODE_SINGLE) {
560                Contact contact = conversation.getContact();
561                Uri systemAccount = contact.getSystemAccount();
562                if (systemAccount != null) {
563                    mBuilder.addPerson(systemAccount.toString());
564                }
565            }
566            mBuilder.setWhen(conversation.getLatestMessage().getTimeSent());
567            mBuilder.setSmallIcon(R.drawable.ic_notification);
568            mBuilder.setDeleteIntent(createDeleteIntent(conversation));
569            mBuilder.setContentIntent(createContentIntent(conversation));
570        }
571        return mBuilder;
572    }
573
574    private void modifyForImage(final Builder builder, final UnreadConversation.Builder uBuilder,
575                                final Message message, final ArrayList<Message> messages) {
576        try {
577            final Bitmap bitmap = mXmppConnectionService.getFileBackend()
578                    .getThumbnail(message, getPixel(288), false);
579            final ArrayList<Message> tmp = new ArrayList<>();
580            for (final Message msg : messages) {
581                if (msg.getType() == Message.TYPE_TEXT
582                        && msg.getTransferable() == null) {
583                    tmp.add(msg);
584                }
585            }
586            final BigPictureStyle bigPictureStyle = new NotificationCompat.BigPictureStyle();
587            bigPictureStyle.bigPicture(bitmap);
588            if (tmp.size() > 0) {
589                CharSequence text = getMergedBodies(tmp);
590                bigPictureStyle.setSummaryText(text);
591                builder.setContentText(text);
592            } else {
593                builder.setContentText(UIHelper.getFileDescriptionString(mXmppConnectionService, message));
594            }
595            builder.setStyle(bigPictureStyle);
596        } catch (final IOException e) {
597            modifyForTextOnly(builder, uBuilder, messages);
598        }
599    }
600
601    private void modifyForTextOnly(final Builder builder, final UnreadConversation.Builder uBuilder, final ArrayList<Message> messages) {
602        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
603            NotificationCompat.MessagingStyle messagingStyle = new NotificationCompat.MessagingStyle(mXmppConnectionService.getString(R.string.me));
604            final Conversation conversation = (Conversation) messages.get(0).getConversation();
605            if (conversation.getMode() == Conversation.MODE_MULTI) {
606                messagingStyle.setConversationTitle(conversation.getName());
607            }
608            for (Message message : messages) {
609                String sender = message.getStatus() == Message.STATUS_RECEIVED ? UIHelper.getMessageDisplayName(message) : null;
610                messagingStyle.addMessage(UIHelper.getMessagePreview(mXmppConnectionService, message).first, message.getTimeSent(), sender);
611            }
612            builder.setStyle(messagingStyle);
613        } else {
614            if (messages.get(0).getConversation().getMode() == Conversation.MODE_SINGLE) {
615                builder.setStyle(new NotificationCompat.BigTextStyle().bigText(getMergedBodies(messages)));
616                builder.setContentText(UIHelper.getMessagePreview(mXmppConnectionService, messages.get(0)).first);
617            } else {
618                final NotificationCompat.InboxStyle style = new NotificationCompat.InboxStyle();
619                SpannableString styledString;
620                for (Message message : messages) {
621                    final String name = UIHelper.getMessageDisplayName(message);
622                    styledString = new SpannableString(name + ": " + message.getBody());
623                    styledString.setSpan(new StyleSpan(Typeface.BOLD), 0, name.length(), 0);
624                    style.addLine(styledString);
625                }
626                builder.setStyle(style);
627                int count = messages.size();
628                if (count == 1) {
629                    final String name = UIHelper.getMessageDisplayName(messages.get(0));
630                    styledString = new SpannableString(name + ": " + messages.get(0).getBody());
631                    styledString.setSpan(new StyleSpan(Typeface.BOLD), 0, name.length(), 0);
632                    builder.setContentText(styledString);
633                } else {
634                    builder.setContentText(mXmppConnectionService.getResources().getQuantityString(R.plurals.x_messages, count, count));
635                }
636            }
637        }
638        /** message preview for Android Auto **/
639        for (Message message : messages) {
640            Pair<CharSequence, Boolean> preview = UIHelper.getMessagePreview(mXmppConnectionService, message);
641            // only show user written text
642            if (!preview.second) {
643                uBuilder.addMessage(preview.first.toString());
644                uBuilder.setLatestTimestamp(message.getTimeSent());
645            }
646        }
647    }
648
649    private Message getImage(final Iterable<Message> messages) {
650        Message image = null;
651        for (final Message message : messages) {
652            if (message.getStatus() != Message.STATUS_RECEIVED) {
653                return null;
654            }
655            if (message.getType() != Message.TYPE_TEXT
656                    && message.getTransferable() == null
657                    && message.getEncryption() != Message.ENCRYPTION_PGP
658                    && message.getFileParams().height > 0) {
659                image = message;
660            }
661        }
662        return image;
663    }
664
665    private Message getFirstDownloadableMessage(final Iterable<Message> messages) {
666        for (final Message message : messages) {
667            if (message.getTransferable() != null || (message.getType() == Message.TYPE_TEXT && message.treatAsDownloadable())) {
668                return message;
669            }
670        }
671        return null;
672    }
673
674    private Message getFirstLocationMessage(final Iterable<Message> messages) {
675        for (final Message message : messages) {
676            if (message.isGeoUri()) {
677                return message;
678            }
679        }
680        return null;
681    }
682
683    private CharSequence getMergedBodies(final ArrayList<Message> messages) {
684        final StringBuilder text = new StringBuilder();
685        for (Message message : messages) {
686            if (text.length() != 0) {
687                text.append("\n");
688            }
689            text.append(UIHelper.getMessagePreview(mXmppConnectionService, message).first);
690        }
691        return text.toString();
692    }
693
694    private PendingIntent createShowLocationIntent(final Message message) {
695        Iterable<Intent> intents = GeoHelper.createGeoIntentsFromMessage(mXmppConnectionService, message);
696        for (Intent intent : intents) {
697            if (intent.resolveActivity(mXmppConnectionService.getPackageManager()) != null) {
698                return PendingIntent.getActivity(mXmppConnectionService, generateRequestCode(message.getConversation(), 18), intent, PendingIntent.FLAG_UPDATE_CURRENT);
699            }
700        }
701        return createOpenConversationsIntent();
702    }
703
704    private PendingIntent createContentIntent(final String conversationUuid, final String downloadMessageUuid) {
705        final Intent viewConversationIntent = new Intent(mXmppConnectionService, ConversationsActivity.class);
706        viewConversationIntent.setAction(ConversationsActivity.ACTION_VIEW_CONVERSATION);
707        viewConversationIntent.putExtra(ConversationsActivity.EXTRA_CONVERSATION, conversationUuid);
708        if (downloadMessageUuid != null) {
709            viewConversationIntent.putExtra(ConversationsActivity.EXTRA_DOWNLOAD_UUID, downloadMessageUuid);
710            return PendingIntent.getActivity(mXmppConnectionService,
711                    generateRequestCode(conversationUuid, 8),
712                    viewConversationIntent,
713                    PendingIntent.FLAG_UPDATE_CURRENT);
714        } else {
715            return PendingIntent.getActivity(mXmppConnectionService,
716                    generateRequestCode(conversationUuid, 10),
717                    viewConversationIntent,
718                    PendingIntent.FLAG_UPDATE_CURRENT);
719        }
720    }
721
722    private int generateRequestCode(String uuid, int actionId) {
723        return (actionId * NOTIFICATION_ID_MULTIPLIER) + (uuid.hashCode() % NOTIFICATION_ID_MULTIPLIER);
724    }
725
726    private int generateRequestCode(Conversational conversation, int actionId) {
727        return generateRequestCode(conversation.getUuid(), actionId);
728    }
729
730    private PendingIntent createDownloadIntent(final Message message) {
731        return createContentIntent(message.getConversationUuid(), message.getUuid());
732    }
733
734    private PendingIntent createContentIntent(final Conversational conversation) {
735        return createContentIntent(conversation.getUuid(), null);
736    }
737
738    private PendingIntent createDeleteIntent(Conversation conversation) {
739        final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
740        intent.setAction(XmppConnectionService.ACTION_CLEAR_NOTIFICATION);
741        if (conversation != null) {
742            intent.putExtra("uuid", conversation.getUuid());
743            return PendingIntent.getService(mXmppConnectionService, generateRequestCode(conversation, 20), intent, 0);
744        }
745        return PendingIntent.getService(mXmppConnectionService, 0, intent, 0);
746    }
747
748    private PendingIntent createReplyIntent(Conversation conversation, boolean dismissAfterReply) {
749        final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
750        intent.setAction(XmppConnectionService.ACTION_REPLY_TO_CONVERSATION);
751        intent.putExtra("uuid", conversation.getUuid());
752        intent.putExtra("dismiss_notification", dismissAfterReply);
753        final int id = generateRequestCode(conversation, dismissAfterReply ? 12 : 14);
754        return PendingIntent.getService(mXmppConnectionService, id, intent, 0);
755    }
756
757    private PendingIntent createReadPendingIntent(Conversation conversation) {
758        final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
759        intent.setAction(XmppConnectionService.ACTION_MARK_AS_READ);
760        intent.putExtra("uuid", conversation.getUuid());
761        intent.setPackage(mXmppConnectionService.getPackageName());
762        return PendingIntent.getService(mXmppConnectionService, generateRequestCode(conversation, 16), intent, PendingIntent.FLAG_UPDATE_CURRENT);
763    }
764
765    private PendingIntent createSnoozeIntent(Conversation conversation) {
766        final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
767        intent.setAction(XmppConnectionService.ACTION_SNOOZE);
768        intent.putExtra("uuid", conversation.getUuid());
769        intent.setPackage(mXmppConnectionService.getPackageName());
770        return PendingIntent.getService(mXmppConnectionService, generateRequestCode(conversation, 22), intent, PendingIntent.FLAG_UPDATE_CURRENT);
771    }
772
773    private PendingIntent createTryAgainIntent() {
774        final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
775        intent.setAction(XmppConnectionService.ACTION_TRY_AGAIN);
776        return PendingIntent.getService(mXmppConnectionService, 45, intent, 0);
777    }
778
779    private PendingIntent createDismissErrorIntent() {
780        final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
781        intent.setAction(XmppConnectionService.ACTION_DISMISS_ERROR_NOTIFICATIONS);
782        return PendingIntent.getService(mXmppConnectionService, 69, intent, 0);
783    }
784
785    private boolean wasHighlightedOrPrivate(final Message message) {
786        if (message.getConversation() instanceof Conversation) {
787            Conversation conversation = (Conversation) message.getConversation();
788            final String nick = conversation.getMucOptions().getActualNick();
789            final Pattern highlight = generateNickHighlightPattern(nick);
790            if (message.getBody() == null || nick == null) {
791                return false;
792            }
793            final Matcher m = highlight.matcher(message.getBody());
794            return (m.find() || message.getType() == Message.TYPE_PRIVATE);
795        } else {
796            return false;
797        }
798    }
799
800    public void setOpenConversation(final Conversation conversation) {
801        this.mOpenConversation = conversation;
802    }
803
804    public void setIsInForeground(final boolean foreground) {
805        this.mIsInForeground = foreground;
806    }
807
808    private int getPixel(final int dp) {
809        final DisplayMetrics metrics = mXmppConnectionService.getResources()
810                .getDisplayMetrics();
811        return ((int) (dp * metrics.density));
812    }
813
814    private void markLastNotification() {
815        this.mLastNotification = SystemClock.elapsedRealtime();
816    }
817
818    private boolean inMiniGracePeriod(final Account account) {
819        final int miniGrace = account.getStatus() == Account.State.ONLINE ? Config.MINI_GRACE_PERIOD
820                : Config.MINI_GRACE_PERIOD * 2;
821        return SystemClock.elapsedRealtime() < (this.mLastNotification + miniGrace);
822    }
823
824    public Notification createForegroundNotification() {
825        final Notification.Builder mBuilder = new Notification.Builder(mXmppConnectionService);
826        mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.conversations_foreground_service));
827        if (Compatibility.twentySix() || Config.SHOW_CONNECTED_ACCOUNTS) {
828            List<Account> accounts = mXmppConnectionService.getAccounts();
829            int enabled = 0;
830            int connected = 0;
831            for (Account account : accounts) {
832                if (account.isOnlineAndConnected()) {
833                    connected++;
834                    enabled++;
835                } else if (account.isEnabled()) {
836                    enabled++;
837                }
838            }
839            mBuilder.setContentText(mXmppConnectionService.getString(R.string.connected_accounts, connected, enabled));
840        } else {
841            mBuilder.setContentText(mXmppConnectionService.getString(R.string.touch_to_open_conversations));
842        }
843        mBuilder.setContentIntent(createOpenConversationsIntent());
844        mBuilder.setWhen(0);
845        mBuilder.setPriority(Notification.PRIORITY_LOW);
846        mBuilder.setSmallIcon(R.drawable.ic_link_white_24dp);
847
848        if (Compatibility.twentySix()) {
849            mBuilder.setChannelId("foreground");
850        }
851
852
853        return mBuilder.build();
854    }
855
856    private PendingIntent createOpenConversationsIntent() {
857        return PendingIntent.getActivity(mXmppConnectionService, 0, new Intent(mXmppConnectionService, ConversationsActivity.class), 0);
858    }
859
860    public void updateErrorNotification() {
861        if (Config.SUPPRESS_ERROR_NOTIFICATION) {
862            cancel(ERROR_NOTIFICATION_ID);
863            return;
864        }
865        final List<Account> errors = new ArrayList<>();
866        for (final Account account : mXmppConnectionService.getAccounts()) {
867            if (account.hasErrorStatus() && account.showErrorNotification()) {
868                errors.add(account);
869            }
870        }
871        if (Compatibility.keepForegroundService(mXmppConnectionService)) {
872            notify(FOREGROUND_NOTIFICATION_ID, createForegroundNotification());
873        }
874        final Notification.Builder mBuilder = new Notification.Builder(mXmppConnectionService);
875        if (errors.size() == 0) {
876            cancel(ERROR_NOTIFICATION_ID);
877            return;
878        } else if (errors.size() == 1) {
879            mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.problem_connecting_to_account));
880            mBuilder.setContentText(errors.get(0).getJid().asBareJid().toString());
881        } else {
882            mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.problem_connecting_to_accounts));
883            mBuilder.setContentText(mXmppConnectionService.getString(R.string.touch_to_fix));
884        }
885        mBuilder.addAction(R.drawable.ic_autorenew_white_24dp,
886                mXmppConnectionService.getString(R.string.try_again),
887                createTryAgainIntent());
888        mBuilder.setDeleteIntent(createDismissErrorIntent());
889        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
890            mBuilder.setVisibility(NotificationCompat.VISIBILITY_PRIVATE);
891            mBuilder.setSmallIcon(R.drawable.ic_warning_white_24dp);
892        } else {
893            mBuilder.setSmallIcon(R.drawable.ic_stat_alert_warning);
894        }
895        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT_WATCH) {
896            mBuilder.setLocalOnly(true);
897        }
898        mBuilder.setPriority(Notification.PRIORITY_LOW);
899        mBuilder.setContentIntent(PendingIntent.getActivity(mXmppConnectionService,
900                145,
901                new Intent(mXmppConnectionService, ManageAccountActivity.class),
902                PendingIntent.FLAG_UPDATE_CURRENT));
903        if (Compatibility.twentySix()) {
904            mBuilder.setChannelId("error");
905        }
906        notify(ERROR_NOTIFICATION_ID, mBuilder.build());
907    }
908
909    public void updateFileAddingNotification(int current, Message message) {
910        Notification.Builder mBuilder = new Notification.Builder(mXmppConnectionService);
911        mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.transcoding_video));
912        mBuilder.setProgress(100, current, false);
913        mBuilder.setSmallIcon(R.drawable.ic_hourglass_empty_white_24dp);
914        mBuilder.setContentIntent(createContentIntent(message.getConversation()));
915        mBuilder.setOngoing(true);
916        if (Compatibility.twentySix()) {
917            mBuilder.setChannelId("compression");
918        }
919        Notification notification = mBuilder.build();
920        notify(FOREGROUND_NOTIFICATION_ID, notification);
921    }
922
923    public void dismissForcedForegroundNotification() {
924        cancel(FOREGROUND_NOTIFICATION_ID);
925    }
926
927    private void notify(String tag, int id, Notification notification) {
928        final NotificationManagerCompat notificationManager = NotificationManagerCompat.from(mXmppConnectionService);
929        try {
930            notificationManager.notify(tag, id, notification);
931        } catch (RuntimeException e) {
932            Log.d(Config.LOGTAG, "unable to make notification", e);
933        }
934    }
935
936    private void notify(int id, Notification notification) {
937        final NotificationManagerCompat notificationManager = NotificationManagerCompat.from(mXmppConnectionService);
938        try {
939            notificationManager.notify(id, notification);
940        } catch (RuntimeException e) {
941            Log.d(Config.LOGTAG, "unable to make notification", e);
942        }
943    }
944
945    private void cancel(int id) {
946        final NotificationManagerCompat notificationManager = NotificationManagerCompat.from(mXmppConnectionService);
947        try {
948            notificationManager.cancel(id);
949        } catch (RuntimeException e) {
950            Log.d(Config.LOGTAG, "unable to cancel notification", e);
951        }
952    }
953
954    private void cancel(String tag, int id) {
955        final NotificationManagerCompat notificationManager = NotificationManagerCompat.from(mXmppConnectionService);
956        try {
957            notificationManager.cancel(tag, id);
958        } catch (RuntimeException e) {
959            Log.d(Config.LOGTAG, "unable to cancel notification", e);
960        }
961    }
962}