NotificationService.java

  1package eu.siacs.conversations.services;
  2
  3import android.app.Notification;
  4import android.app.PendingIntent;
  5import android.content.Intent;
  6import android.content.SharedPreferences;
  7import android.content.res.Resources;
  8import android.graphics.Bitmap;
  9import android.graphics.Typeface;
 10import android.net.Uri;
 11import android.os.Build;
 12import android.os.SystemClock;
 13import android.preference.PreferenceManager;
 14import android.support.v4.app.NotificationCompat;
 15import android.support.v4.app.NotificationCompat.BigPictureStyle;
 16import android.support.v4.app.NotificationCompat.Builder;
 17import android.support.v4.app.NotificationManagerCompat;
 18import android.support.v4.app.NotificationCompat.CarExtender.UnreadConversation;
 19import android.support.v4.app.RemoteInput;
 20import android.support.v4.content.ContextCompat;
 21import android.text.SpannableString;
 22import android.text.style.StyleSpan;
 23import android.util.DisplayMetrics;
 24import android.util.Log;
 25import android.util.Pair;
 26
 27import java.io.File;
 28import java.io.FileNotFoundException;
 29import java.util.ArrayList;
 30import java.util.Calendar;
 31import java.util.HashMap;
 32import java.util.Iterator;
 33import java.util.LinkedHashMap;
 34import java.util.List;
 35import java.util.Map;
 36import java.util.concurrent.atomic.AtomicInteger;
 37import java.util.regex.Matcher;
 38import java.util.regex.Pattern;
 39
 40import eu.siacs.conversations.Config;
 41import eu.siacs.conversations.R;
 42import eu.siacs.conversations.entities.Account;
 43import eu.siacs.conversations.entities.Contact;
 44import eu.siacs.conversations.entities.Conversation;
 45import eu.siacs.conversations.entities.Message;
 46import eu.siacs.conversations.persistance.FileBackend;
 47import eu.siacs.conversations.ui.ConversationActivity;
 48import eu.siacs.conversations.ui.ManageAccountActivity;
 49import eu.siacs.conversations.ui.SettingsActivity;
 50import eu.siacs.conversations.ui.TimePreference;
 51import eu.siacs.conversations.utils.GeoHelper;
 52import eu.siacs.conversations.utils.UIHelper;
 53import eu.siacs.conversations.xmpp.XmppConnection;
 54
 55public class NotificationService {
 56
 57	public static final Object CATCHUP_LOCK = new Object();
 58
 59	private static final String CONVERSATIONS_GROUP = "eu.siacs.conversations";
 60	private final XmppConnectionService mXmppConnectionService;
 61
 62	private final LinkedHashMap<String, ArrayList<Message>> notifications = new LinkedHashMap<>();
 63
 64	private static final int NOTIFICATION_ID_MULTIPLIER = 1024 * 1024;
 65
 66	public static final int NOTIFICATION_ID = 2 * NOTIFICATION_ID_MULTIPLIER;
 67	public static final int FOREGROUND_NOTIFICATION_ID = NOTIFICATION_ID_MULTIPLIER * 4;
 68	public static final int ERROR_NOTIFICATION_ID = NOTIFICATION_ID_MULTIPLIER * 6;
 69
 70	private Conversation mOpenConversation;
 71	private boolean mIsInForeground;
 72	private long mLastNotification;
 73
 74	private final HashMap<Conversation,AtomicInteger> mBacklogMessageCounter = new HashMap<>();
 75
 76	public NotificationService(final XmppConnectionService service) {
 77		this.mXmppConnectionService = service;
 78	}
 79
 80	public boolean notify(final Message message) {
 81		return message.getStatus() == Message.STATUS_RECEIVED
 82				&& notificationsEnabled()
 83				&& !message.getConversation().isMuted()
 84				&& (message.getConversation().alwaysNotify() || wasHighlightedOrPrivate(message))
 85				&& (!message.getConversation().isWithStranger() || notificationsFromStrangers())
 86		;
 87	}
 88
 89	public boolean notificationsEnabled() {
 90		return mXmppConnectionService.getBooleanPreference("show_notification",R.bool.show_notification);
 91	}
 92
 93	private boolean notificationsFromStrangers() {
 94		return mXmppConnectionService.getBooleanPreference("notifications_from_strangers",R.bool.notifications_from_strangers);
 95	}
 96
 97	public boolean isQuietHours() {
 98		if (!mXmppConnectionService.getBooleanPreference("enable_quiet_hours", R.bool.enable_quiet_hours)) {
 99			return false;
100		}
101		final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(mXmppConnectionService);
102		final long startTime = preferences.getLong("quiet_hours_start", TimePreference.DEFAULT_VALUE) % Config.MILLISECONDS_IN_DAY;
103		final long endTime = preferences.getLong("quiet_hours_end", TimePreference.DEFAULT_VALUE) % Config.MILLISECONDS_IN_DAY;
104		final long nowTime = Calendar.getInstance().getTimeInMillis() % Config.MILLISECONDS_IN_DAY;
105
106		if (endTime < startTime) {
107			return nowTime > startTime || nowTime < endTime;
108		} else {
109			return nowTime > startTime && nowTime < endTime;
110		}
111	}
112
113	public void pushFromBacklog(final Message message) {
114		if (notify(message)) {
115			synchronized (notifications) {
116				getBacklogMessageCounter(message.getConversation()).incrementAndGet();
117				pushToStack(message);
118			}
119		}
120	}
121
122	private AtomicInteger getBacklogMessageCounter(Conversation conversation) {
123		synchronized (mBacklogMessageCounter) {
124			if (!mBacklogMessageCounter.containsKey(conversation)) {
125				mBacklogMessageCounter.put(conversation,new AtomicInteger(0));
126			}
127			return mBacklogMessageCounter.get(conversation);
128		}
129	}
130
131	public void pushFromDirectReply(final Message message) {
132		synchronized (notifications) {
133			pushToStack(message);
134			updateNotification(false);
135		}
136	}
137
138	public void finishBacklog(boolean notify, Account account) {
139		synchronized (notifications) {
140			mXmppConnectionService.updateUnreadCountBadge();
141			if (account == null || !notify) {
142				updateNotification(notify);
143			} else {
144				updateNotification(getBacklogMessageCount(account) > 0);
145			}
146		}
147	}
148
149	private int getBacklogMessageCount(Account account) {
150		int count = 0;
151		synchronized (this.mBacklogMessageCounter) {
152			for(Iterator<Map.Entry<Conversation, AtomicInteger>> it = mBacklogMessageCounter.entrySet().iterator(); it.hasNext(); ) {
153				Map.Entry<Conversation, AtomicInteger> entry = it.next();
154				if (entry.getKey().getAccount() == account) {
155					count += entry.getValue().get();
156					it.remove();
157				}
158			}
159		}
160		Log.d(Config.LOGTAG,account.getJid().toBareJid()+": backlog message count="+count);
161		return count;
162	}
163
164	public void finishBacklog(boolean notify) {
165		finishBacklog(notify,null);
166	}
167
168	private void pushToStack(final Message message) {
169		final String conversationUuid = message.getConversationUuid();
170		if (notifications.containsKey(conversationUuid)) {
171			notifications.get(conversationUuid).add(message);
172		} else {
173			final ArrayList<Message> mList = new ArrayList<>();
174			mList.add(message);
175			notifications.put(conversationUuid, mList);
176		}
177	}
178
179	public void push(final Message message) {
180		synchronized (CATCHUP_LOCK) {
181			final XmppConnection connection = message.getConversation().getAccount().getXmppConnection();
182			if (connection.isWaitingForSmCatchup()) {
183				connection.incrementSmCatchupMessageCounter();
184				pushFromBacklog(message);
185			} else {
186				pushNow(message);
187			}
188		}
189	}
190
191	private void pushNow(final Message message) {
192		mXmppConnectionService.updateUnreadCountBadge();
193		if (!notify(message)) {
194			Log.d(Config.LOGTAG,message.getConversation().getAccount().getJid().toBareJid()+": suppressing notification because turned off");
195			return;
196		}
197		final boolean isScreenOn = mXmppConnectionService.isInteractive();
198		if (this.mIsInForeground && isScreenOn && this.mOpenConversation == message.getConversation()) {
199			Log.d(Config.LOGTAG,message.getConversation().getAccount().getJid().toBareJid()+": suppressing notification because conversation is open");
200			return;
201		}
202		synchronized (notifications) {
203			pushToStack(message);
204			final Account account = message.getConversation().getAccount();
205			final boolean doNotify = (!(this.mIsInForeground && this.mOpenConversation == null) || !isScreenOn)
206					&& !account.inGracePeriod()
207					&& !this.inMiniGracePeriod(account);
208			updateNotification(doNotify);
209		}
210	}
211
212	public void clear() {
213		synchronized (notifications) {
214			for(ArrayList<Message> messages : notifications.values()) {
215				markAsReadIfHasDirectReply(messages);
216			}
217			notifications.clear();
218			updateNotification(false);
219		}
220	}
221
222	public void clear(final Conversation conversation) {
223		synchronized (this.mBacklogMessageCounter) {
224			this.mBacklogMessageCounter.remove(conversation);
225		}
226		synchronized (notifications) {
227			markAsReadIfHasDirectReply(conversation);
228			notifications.remove(conversation.getUuid());
229			final NotificationManagerCompat notificationManager = NotificationManagerCompat.from(mXmppConnectionService);
230			notificationManager.cancel(conversation.getUuid(), NOTIFICATION_ID);
231			updateNotification(false);
232		}
233	}
234
235	private void markAsReadIfHasDirectReply(final Conversation conversation) {
236		markAsReadIfHasDirectReply(notifications.get(conversation.getUuid()));
237	}
238
239	private void markAsReadIfHasDirectReply(final ArrayList<Message> messages) {
240		if (messages != null && messages.size() > 0) {
241			Message last = messages.get(messages.size() - 1);
242			if (last.getStatus() != Message.STATUS_RECEIVED) {
243				if (mXmppConnectionService.markRead(last.getConversation(), false)) {
244					mXmppConnectionService.updateConversationUi();
245				}
246			}
247		}
248	}
249
250	private void setNotificationColor(final Builder mBuilder) {
251		mBuilder.setColor(ContextCompat.getColor(mXmppConnectionService, R.color.primary500));
252	}
253
254	public void updateNotification(final boolean notify) {
255		final NotificationManagerCompat notificationManager = NotificationManagerCompat.from(mXmppConnectionService);
256		final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(mXmppConnectionService);
257
258		if (notifications.size() == 0) {
259			notificationManager.cancel(NOTIFICATION_ID);
260		} else {
261			if (notify) {
262				this.markLastNotification();
263			}
264			final Builder mBuilder;
265			if (notifications.size() == 1 && Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
266				mBuilder = buildSingleConversations(notifications.values().iterator().next());
267				modifyForSoundVibrationAndLight(mBuilder, notify, preferences);
268				notificationManager.notify(NOTIFICATION_ID, mBuilder.build());
269			} else {
270				mBuilder = buildMultipleConversation();
271				modifyForSoundVibrationAndLight(mBuilder, notify, preferences);
272				for(Map.Entry<String,ArrayList<Message>> entry : notifications.entrySet()) {
273					Builder singleBuilder = buildSingleConversations(entry.getValue());
274					singleBuilder.setGroup(CONVERSATIONS_GROUP);
275					setNotificationColor(singleBuilder);
276					notificationManager.notify(entry.getKey(), NOTIFICATION_ID ,singleBuilder.build());
277				}
278				notificationManager.notify(NOTIFICATION_ID, mBuilder.build());
279			}
280		}
281	}
282
283
284	private void modifyForSoundVibrationAndLight(Builder mBuilder, boolean notify, SharedPreferences preferences) {
285		final Resources resources = mXmppConnectionService.getResources();
286		final String ringtone = preferences.getString("notification_ringtone", resources.getString(R.string.notification_ringtone));
287		final boolean vibrate = preferences.getBoolean("vibrate_on_notification", resources.getBoolean(R.bool.vibrate_on_notification));
288		final boolean led = preferences.getBoolean("led", resources.getBoolean(R.bool.led));
289		final boolean headsup = preferences.getBoolean("notification_headsup", resources.getBoolean(R.bool.headsup_notifications));
290		if (notify && !isQuietHours()) {
291			if (vibrate) {
292				final int dat = 70;
293				final long[] pattern = {0, 3 * dat, dat, dat};
294				mBuilder.setVibrate(pattern);
295			} else {
296				mBuilder.setVibrate(new long[]{0});
297			}
298			Uri uri = Uri.parse(ringtone);
299			try {
300				mBuilder.setSound(fixRingtoneUri(uri));
301			} catch (SecurityException e) {
302				Log.d(Config.LOGTAG,"unable to use custom notification sound "+uri.toString());
303			}
304		}
305		if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
306			mBuilder.setCategory(Notification.CATEGORY_MESSAGE);
307		}
308		mBuilder.setPriority(notify ? (headsup ? NotificationCompat.PRIORITY_HIGH : NotificationCompat.PRIORITY_DEFAULT) : NotificationCompat.PRIORITY_LOW);
309		setNotificationColor(mBuilder);
310		mBuilder.setDefaults(0);
311		if (led) {
312			mBuilder.setLights(0xff00FF00, 2000, 3000);
313		}
314	}
315
316	private Uri fixRingtoneUri(Uri uri) {
317		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N && "file".equals(uri.getScheme())) {
318			return FileBackend.getUriForFile(mXmppConnectionService,new File(uri.getPath()));
319		} else {
320			return uri;
321		}
322	}
323
324	private Builder buildMultipleConversation() {
325		final Builder mBuilder = new NotificationCompat.Builder(
326				mXmppConnectionService);
327		final NotificationCompat.InboxStyle style = new NotificationCompat.InboxStyle();
328		style.setBigContentTitle(notifications.size()
329				+ " "
330				+ mXmppConnectionService
331				.getString(R.string.unread_conversations));
332		final StringBuilder names = new StringBuilder();
333		Conversation conversation = null;
334		for (final ArrayList<Message> messages : notifications.values()) {
335			if (messages.size() > 0) {
336				conversation = messages.get(0).getConversation();
337				final String name = conversation.getName();
338				SpannableString styledString;
339				if (Config.HIDE_MESSAGE_TEXT_IN_NOTIFICATION) {
340					int count = messages.size();
341					styledString = new SpannableString(name + ": " + mXmppConnectionService.getResources().getQuantityString(R.plurals.x_messages,count,count));
342					styledString.setSpan(new StyleSpan(Typeface.BOLD), 0, name.length(), 0);
343					style.addLine(styledString);
344				} else {
345					styledString = new SpannableString(name + ": " + UIHelper.getMessagePreview(mXmppConnectionService, messages.get(0)).first);
346					styledString.setSpan(new StyleSpan(Typeface.BOLD), 0, name.length(), 0);
347					style.addLine(styledString);
348				}
349				names.append(name);
350				names.append(", ");
351			}
352		}
353		if (names.length() >= 2) {
354			names.delete(names.length() - 2, names.length());
355		}
356		mBuilder.setContentTitle(notifications.size()
357				+ " "
358				+ mXmppConnectionService
359				.getString(R.string.unread_conversations));
360		mBuilder.setContentText(names.toString());
361		mBuilder.setStyle(style);
362		if (conversation != null) {
363			mBuilder.setContentIntent(createContentIntent(conversation));
364		}
365		mBuilder.setGroupSummary(true);
366		mBuilder.setGroup(CONVERSATIONS_GROUP);
367		mBuilder.setDeleteIntent(createDeleteIntent(null));
368		mBuilder.setSmallIcon(R.drawable.ic_notification);
369		return mBuilder;
370	}
371
372	private Builder buildSingleConversations(final ArrayList<Message> messages) {
373		final Builder mBuilder = new NotificationCompat.Builder(mXmppConnectionService);
374		if (messages.size() >= 1) {
375			final Conversation conversation = messages.get(0).getConversation();
376			final UnreadConversation.Builder mUnreadBuilder = new UnreadConversation.Builder(conversation.getName());
377			mBuilder.setLargeIcon(mXmppConnectionService.getAvatarService()
378					.get(conversation, getPixel(64)));
379			mBuilder.setContentTitle(conversation.getName());
380			if (Config.HIDE_MESSAGE_TEXT_IN_NOTIFICATION) {
381				int count = messages.size();
382				mBuilder.setContentText(mXmppConnectionService.getResources().getQuantityString(R.plurals.x_messages,count,count));
383			} else {
384				Message message;
385				if ((message = getImage(messages)) != null) {
386					modifyForImage(mBuilder, mUnreadBuilder, message, messages);
387				} else {
388					modifyForTextOnly(mBuilder, mUnreadBuilder, messages);
389				}
390				RemoteInput remoteInput = new RemoteInput.Builder("text_reply").setLabel(UIHelper.getMessageHint(mXmppConnectionService, conversation)).build();
391				NotificationCompat.Action replyAction = new NotificationCompat.Action.Builder(R.drawable.ic_send_text_offline, "Reply", createReplyIntent(conversation, false)).addRemoteInput(remoteInput).build();
392				NotificationCompat.Action wearReplyAction = new NotificationCompat.Action.Builder(R.drawable.ic_wear_reply, "Reply", createReplyIntent(conversation, true)).addRemoteInput(remoteInput).build();
393				mBuilder.extend(new NotificationCompat.WearableExtender().addAction(wearReplyAction));
394				mUnreadBuilder.setReplyAction(createReplyIntent(conversation, true), remoteInput);
395				mUnreadBuilder.setReadPendingIntent(createReadPendingIntent(conversation));
396				mBuilder.extend(new NotificationCompat.CarExtender().setUnreadConversation(mUnreadBuilder.build()));
397				if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
398					mBuilder.addAction(replyAction);
399				}
400				if ((message = getFirstDownloadableMessage(messages)) != null) {
401					mBuilder.addAction(
402							Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP ?
403									R.drawable.ic_file_download_white_24dp : R.drawable.ic_action_download,
404							mXmppConnectionService.getResources().getString(R.string.download_x_file,
405									UIHelper.getFileDescriptionString(mXmppConnectionService, message)),
406							createDownloadIntent(message)
407					);
408				}
409				if ((message = getFirstLocationMessage(messages)) != null) {
410					mBuilder.addAction(R.drawable.ic_room_white_24dp,
411							mXmppConnectionService.getString(R.string.show_location),
412							createShowLocationIntent(message));
413				}
414			}
415			if (conversation.getMode() == Conversation.MODE_SINGLE) {
416				Contact contact = conversation.getContact();
417				Uri systemAccount = contact.getSystemAccount();
418				if (systemAccount != null) {
419					mBuilder.addPerson(systemAccount.toString());
420				}
421			}
422			mBuilder.setWhen(conversation.getLatestMessage().getTimeSent());
423			mBuilder.setSmallIcon(R.drawable.ic_notification);
424			mBuilder.setDeleteIntent(createDeleteIntent(conversation));
425			mBuilder.setContentIntent(createContentIntent(conversation));
426		}
427		return mBuilder;
428	}
429
430	private void modifyForImage(final Builder builder, final UnreadConversation.Builder uBuilder,
431								final Message message, final ArrayList<Message> messages) {
432		try {
433			final Bitmap bitmap = mXmppConnectionService.getFileBackend()
434					.getThumbnail(message, getPixel(288), false);
435			final ArrayList<Message> tmp = new ArrayList<>();
436			for (final Message msg : messages) {
437				if (msg.getType() == Message.TYPE_TEXT
438						&& msg.getTransferable() == null) {
439					tmp.add(msg);
440				}
441			}
442			final BigPictureStyle bigPictureStyle = new NotificationCompat.BigPictureStyle();
443			bigPictureStyle.bigPicture(bitmap);
444			if (tmp.size() > 0) {
445				CharSequence text = getMergedBodies(tmp);
446				bigPictureStyle.setSummaryText(text);
447				builder.setContentText(text);
448			} else {
449				builder.setContentText(mXmppConnectionService.getString(
450						R.string.received_x_file,
451						UIHelper.getFileDescriptionString(mXmppConnectionService, message)));
452			}
453			builder.setStyle(bigPictureStyle);
454		} catch (final FileNotFoundException e) {
455			modifyForTextOnly(builder, uBuilder, messages);
456		}
457	}
458
459	private void modifyForTextOnly(final Builder builder, final UnreadConversation.Builder uBuilder, final ArrayList<Message> messages) {
460		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
461			NotificationCompat.MessagingStyle messagingStyle = new NotificationCompat.MessagingStyle(mXmppConnectionService.getString(R.string.me));
462			Conversation conversation = messages.get(0).getConversation();
463			if (conversation.getMode() == Conversation.MODE_MULTI) {
464				messagingStyle.setConversationTitle(conversation.getName());
465			}
466			for (Message message : messages) {
467				String sender = message.getStatus() == Message.STATUS_RECEIVED ? UIHelper.getMessageDisplayName(message) : null;
468				messagingStyle.addMessage(UIHelper.getMessagePreview(mXmppConnectionService,message).first, message.getTimeSent(), sender);
469			}
470			builder.setStyle(messagingStyle);
471		} else {
472			if(messages.get(0).getConversation().getMode() == Conversation.MODE_SINGLE) {
473				builder.setStyle(new NotificationCompat.BigTextStyle().bigText(getMergedBodies(messages)));
474				builder.setContentText(UIHelper.getMessagePreview(mXmppConnectionService, messages.get(0)).first);
475			} else {
476				final NotificationCompat.InboxStyle style = new NotificationCompat.InboxStyle();
477				SpannableString styledString;
478				for (Message message : messages) {
479					final String name = UIHelper.getMessageDisplayName(message);
480					styledString = new SpannableString(name + ": " + message.getBody());
481					styledString.setSpan(new StyleSpan(Typeface.BOLD), 0, name.length(), 0);
482					style.addLine(styledString);
483				}
484				builder.setStyle(style);
485				int count = messages.size();
486				if(count == 1) {
487					final String name = UIHelper.getMessageDisplayName(messages.get(0));
488					styledString = new SpannableString(name + ": " + messages.get(0).getBody());
489					styledString.setSpan(new StyleSpan(Typeface.BOLD), 0, name.length(), 0);
490					builder.setContentText(styledString);
491				} else {
492					builder.setContentText(mXmppConnectionService.getResources().getQuantityString(R.plurals.x_messages,count,count));
493				}
494			}
495		}
496		/** message preview for Android Auto **/
497		for (Message message : messages) {
498			Pair<String,Boolean> preview = UIHelper.getMessagePreview(mXmppConnectionService, message);
499			// only show user written text
500			if (preview.second == false) {
501				uBuilder.addMessage(preview.first);
502				uBuilder.setLatestTimestamp(message.getTimeSent());
503			}
504		}
505	}
506
507	private Message getImage(final Iterable<Message> messages) {
508		Message image = null;
509		for (final Message message : messages) {
510			if (message.getStatus() != Message.STATUS_RECEIVED) {
511				return null;
512			}
513			if (message.getType() != Message.TYPE_TEXT
514					&& message.getTransferable() == null
515					&& message.getEncryption() != Message.ENCRYPTION_PGP
516					&& message.getFileParams().height > 0) {
517				image = message;
518			}
519		}
520		return image;
521	}
522
523	private Message getFirstDownloadableMessage(final Iterable<Message> messages) {
524		for (final Message message : messages) {
525			if (message.getTransferable() != null || (message.getType() == Message.TYPE_TEXT && message.treatAsDownloadable())) {
526				return message;
527			}
528		}
529		return null;
530	}
531
532	private Message getFirstLocationMessage(final Iterable<Message> messages) {
533		for (final Message message : messages) {
534			if (message.isGeoUri()) {
535				return message;
536			}
537		}
538		return null;
539	}
540
541	private CharSequence getMergedBodies(final ArrayList<Message> messages) {
542		final StringBuilder text = new StringBuilder();
543		for(Message message : messages) {
544			if (text.length() != 0) {
545				text.append("\n");
546			}
547			text.append(UIHelper.getMessagePreview(mXmppConnectionService, message).first);
548		}
549		return text.toString();
550	}
551
552	private PendingIntent createShowLocationIntent(final Message message) {
553		Iterable<Intent> intents = GeoHelper.createGeoIntentsFromMessage(message);
554		for (Intent intent : intents) {
555			if (intent.resolveActivity(mXmppConnectionService.getPackageManager()) != null) {
556				return PendingIntent.getActivity(mXmppConnectionService, 18, intent, PendingIntent.FLAG_UPDATE_CURRENT);
557			}
558		}
559		return createOpenConversationsIntent();
560	}
561
562	private PendingIntent createContentIntent(final String conversationUuid, final String downloadMessageUuid) {
563		final Intent viewConversationIntent = new Intent(mXmppConnectionService,ConversationActivity.class);
564		viewConversationIntent.setAction(ConversationActivity.ACTION_VIEW_CONVERSATION);
565		viewConversationIntent.putExtra(ConversationActivity.CONVERSATION, conversationUuid);
566		if (downloadMessageUuid != null) {
567			viewConversationIntent.putExtra(ConversationActivity.EXTRA_DOWNLOAD_UUID, downloadMessageUuid);
568			return PendingIntent.getActivity(mXmppConnectionService,
569					(conversationUuid.hashCode() % NOTIFICATION_ID_MULTIPLIER) + 8 * NOTIFICATION_ID_MULTIPLIER,
570					viewConversationIntent,
571					PendingIntent.FLAG_UPDATE_CURRENT);
572		} else {
573			return PendingIntent.getActivity(mXmppConnectionService,
574					(conversationUuid.hashCode() % NOTIFICATION_ID_MULTIPLIER) + 10 * NOTIFICATION_ID_MULTIPLIER,
575					viewConversationIntent,
576					PendingIntent.FLAG_UPDATE_CURRENT);
577		}
578	}
579
580	private PendingIntent createDownloadIntent(final Message message) {
581		return createContentIntent(message.getConversationUuid(), message.getUuid());
582	}
583
584	private PendingIntent createContentIntent(final Conversation conversation) {
585		return createContentIntent(conversation.getUuid(), null);
586	}
587
588	private PendingIntent createDeleteIntent(Conversation conversation) {
589		final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
590		intent.setAction(XmppConnectionService.ACTION_CLEAR_NOTIFICATION);
591		if (conversation != null) {
592			intent.putExtra("uuid", conversation.getUuid());
593			return PendingIntent.getService(mXmppConnectionService, (conversation.getUuid().hashCode() % NOTIFICATION_ID_MULTIPLIER) + 12 * NOTIFICATION_ID_MULTIPLIER, intent, 0);
594		}
595		return PendingIntent.getService(mXmppConnectionService, 0, intent, 0);
596	}
597
598	private PendingIntent createReplyIntent(Conversation conversation, boolean dismissAfterReply) {
599		final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
600		intent.setAction(XmppConnectionService.ACTION_REPLY_TO_CONVERSATION);
601		intent.putExtra("uuid",conversation.getUuid());
602		intent.putExtra("dismiss_notification",dismissAfterReply);
603		int id =  (conversation.getUuid().hashCode() % NOTIFICATION_ID_MULTIPLIER) + (dismissAfterReply ? 12 : 14) * NOTIFICATION_ID_MULTIPLIER;
604		return PendingIntent.getService(mXmppConnectionService, id, intent, 0);
605	}
606
607	private PendingIntent createReadPendingIntent(Conversation conversation) {
608		final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
609		intent.setAction(XmppConnectionService.ACTION_MARK_AS_READ);
610		intent.putExtra("uuid", conversation.getUuid());
611		intent.setPackage(mXmppConnectionService.getPackageName());
612		return PendingIntent.getService(mXmppConnectionService, (conversation.getUuid().hashCode() % NOTIFICATION_ID_MULTIPLIER) + 16 * NOTIFICATION_ID_MULTIPLIER, intent, PendingIntent.FLAG_UPDATE_CURRENT);
613	}
614
615	private PendingIntent createDisableForeground() {
616		final Intent intent = new Intent(mXmppConnectionService,
617				XmppConnectionService.class);
618		intent.setAction(XmppConnectionService.ACTION_DISABLE_FOREGROUND);
619		return PendingIntent.getService(mXmppConnectionService, 34, intent, 0);
620	}
621
622	private PendingIntent createTryAgainIntent() {
623		final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
624		intent.setAction(XmppConnectionService.ACTION_TRY_AGAIN);
625		return PendingIntent.getService(mXmppConnectionService, 45, intent, 0);
626	}
627
628	private PendingIntent createDismissErrorIntent() {
629		final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
630		intent.setAction(XmppConnectionService.ACTION_DISMISS_ERROR_NOTIFICATIONS);
631		return PendingIntent.getService(mXmppConnectionService, 69, intent, 0);
632	}
633
634	private boolean wasHighlightedOrPrivate(final Message message) {
635		final String nick = message.getConversation().getMucOptions().getActualNick();
636		final Pattern highlight = generateNickHighlightPattern(nick);
637		if (message.getBody() == null || nick == null) {
638			return false;
639		}
640		final Matcher m = highlight.matcher(message.getBody());
641		return (m.find() || message.getType() == Message.TYPE_PRIVATE);
642	}
643
644	public static Pattern generateNickHighlightPattern(final String nick) {
645		// We expect a word boundary, i.e. space or start of string, followed by
646		// the
647		// nick (matched in case-insensitive manner), followed by optional
648		// punctuation (for example "bob: i disagree" or "how are you alice?"),
649		// followed by another word boundary.
650		return Pattern.compile("\\b" + Pattern.quote(nick) + "\\p{Punct}?\\b",
651				Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE);
652	}
653
654	public void setOpenConversation(final Conversation conversation) {
655		this.mOpenConversation = conversation;
656	}
657
658	public void setIsInForeground(final boolean foreground) {
659		this.mIsInForeground = foreground;
660	}
661
662	private int getPixel(final int dp) {
663		final DisplayMetrics metrics = mXmppConnectionService.getResources()
664				.getDisplayMetrics();
665		return ((int) (dp * metrics.density));
666	}
667
668	private void markLastNotification() {
669		this.mLastNotification = SystemClock.elapsedRealtime();
670	}
671
672	private boolean inMiniGracePeriod(final Account account) {
673		final int miniGrace = account.getStatus() == Account.State.ONLINE ? Config.MINI_GRACE_PERIOD
674				: Config.MINI_GRACE_PERIOD * 2;
675		return SystemClock.elapsedRealtime() < (this.mLastNotification + miniGrace);
676	}
677
678	public Notification createForegroundNotification() {
679		final NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(mXmppConnectionService);
680
681		mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.conversations_foreground_service));
682		if (Config.SHOW_CONNECTED_ACCOUNTS) {
683			List<Account> accounts = mXmppConnectionService.getAccounts();
684			int enabled = 0;
685			int connected = 0;
686			for (Account account : accounts) {
687				if (account.isOnlineAndConnected()) {
688					connected++;
689					enabled++;
690				} else if (!account.isOptionSet(Account.OPTION_DISABLED)) {
691					enabled++;
692				}
693			}
694			mBuilder.setContentText(mXmppConnectionService.getString(R.string.connected_accounts, connected, enabled));
695		} else {
696			mBuilder.setContentText(mXmppConnectionService.getString(R.string.touch_to_open_conversations));
697		}
698		mBuilder.setContentIntent(createOpenConversationsIntent());
699		mBuilder.setWhen(0);
700		mBuilder.setPriority(Config.SHOW_CONNECTED_ACCOUNTS ? NotificationCompat.PRIORITY_DEFAULT : NotificationCompat.PRIORITY_MIN);
701		mBuilder.setSmallIcon(R.drawable.ic_link_white_24dp);
702		if (Config.SHOW_DISABLE_FOREGROUND) {
703			final int cancelIcon;
704			if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
705				mBuilder.setCategory(Notification.CATEGORY_SERVICE);
706				cancelIcon = R.drawable.ic_cancel_white_24dp;
707			} else {
708				cancelIcon = R.drawable.ic_action_cancel;
709			}
710			mBuilder.addAction(cancelIcon,
711					mXmppConnectionService.getString(R.string.disable_foreground_service),
712					createDisableForeground());
713		}
714		return mBuilder.build();
715	}
716
717	private PendingIntent createOpenConversationsIntent() {
718		return PendingIntent.getActivity(mXmppConnectionService, 0, new Intent(mXmppConnectionService, ConversationActivity.class), 0);
719	}
720
721	public void updateErrorNotification() {
722		final NotificationManagerCompat notificationManager = NotificationManagerCompat.from(mXmppConnectionService);
723		final List<Account> errors = new ArrayList<>();
724		for (final Account account : mXmppConnectionService.getAccounts()) {
725			if (account.hasErrorStatus() && account.showErrorNotification()) {
726				errors.add(account);
727			}
728		}
729		if (mXmppConnectionService.keepForegroundService()) {
730			notificationManager.notify(FOREGROUND_NOTIFICATION_ID, createForegroundNotification());
731		}
732		final NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(mXmppConnectionService);
733		if (errors.size() == 0) {
734			notificationManager.cancel(ERROR_NOTIFICATION_ID);
735			return;
736		} else if (errors.size() == 1) {
737			mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.problem_connecting_to_account));
738			mBuilder.setContentText(errors.get(0).getJid().toBareJid().toString());
739		} else {
740			mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.problem_connecting_to_accounts));
741			mBuilder.setContentText(mXmppConnectionService.getString(R.string.touch_to_fix));
742		}
743		mBuilder.addAction(R.drawable.ic_autorenew_white_24dp,
744				mXmppConnectionService.getString(R.string.try_again),
745				createTryAgainIntent());
746		mBuilder.setDeleteIntent(createDismissErrorIntent());
747		mBuilder.setVisibility(NotificationCompat.VISIBILITY_PUBLIC);
748		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
749			mBuilder.setSmallIcon(R.drawable.ic_warning_white_24dp);
750		} else {
751			mBuilder.setSmallIcon(R.drawable.ic_stat_alert_warning);
752		}
753		mBuilder.setContentIntent(PendingIntent.getActivity(mXmppConnectionService,
754				145,
755				new Intent(mXmppConnectionService,ManageAccountActivity.class),
756				PendingIntent.FLAG_UPDATE_CURRENT));
757		notificationManager.notify(ERROR_NOTIFICATION_ID, mBuilder.build());
758	}
759}