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