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			if (notifications.remove(conversation.getUuid()) != null) {
229				final NotificationManagerCompat notificationManager = NotificationManagerCompat.from(mXmppConnectionService);
230				notificationManager.cancel(conversation.getUuid(), NOTIFICATION_ID);
231				updateNotification(false, true);
232			}
233		}
234	}
235
236	private void markAsReadIfHasDirectReply(final Conversation conversation) {
237		markAsReadIfHasDirectReply(notifications.get(conversation.getUuid()));
238	}
239
240	private void markAsReadIfHasDirectReply(final ArrayList<Message> messages) {
241		if (messages != null && messages.size() > 0) {
242			Message last = messages.get(messages.size() - 1);
243			if (last.getStatus() != Message.STATUS_RECEIVED) {
244				if (mXmppConnectionService.markRead(last.getConversation(), false)) {
245					mXmppConnectionService.updateConversationUi();
246				}
247			}
248		}
249	}
250
251	private void setNotificationColor(final Builder mBuilder) {
252		mBuilder.setColor(ContextCompat.getColor(mXmppConnectionService, R.color.primary500));
253	}
254
255	public void updateNotification(final boolean notify) {
256		updateNotification(notify, false);
257	}
258
259	public void updateNotification(final boolean notify, boolean summaryOnly) {
260		final NotificationManagerCompat notificationManager = NotificationManagerCompat.from(mXmppConnectionService);
261		final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(mXmppConnectionService);
262
263		if (notifications.size() == 0) {
264			notificationManager.cancel(NOTIFICATION_ID);
265		} else {
266			if (notify) {
267				this.markLastNotification();
268			}
269			final Builder mBuilder;
270			if (notifications.size() == 1 && Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
271				mBuilder = buildSingleConversations(notifications.values().iterator().next());
272				modifyForSoundVibrationAndLight(mBuilder, notify, preferences);
273				notificationManager.notify(NOTIFICATION_ID, mBuilder.build());
274			} else {
275				mBuilder = buildMultipleConversation();
276				modifyForSoundVibrationAndLight(mBuilder, notify, preferences);
277				if (!summaryOnly) {
278					for (Map.Entry<String, ArrayList<Message>> entry : notifications.entrySet()) {
279						Builder singleBuilder = buildSingleConversations(entry.getValue());
280						singleBuilder.setGroup(CONVERSATIONS_GROUP);
281						setNotificationColor(singleBuilder);
282						notificationManager.notify(entry.getKey(), NOTIFICATION_ID, singleBuilder.build());
283					}
284				}
285				notificationManager.notify(NOTIFICATION_ID, mBuilder.build());
286			}
287		}
288	}
289
290
291	private void modifyForSoundVibrationAndLight(Builder mBuilder, boolean notify, SharedPreferences preferences) {
292		final Resources resources = mXmppConnectionService.getResources();
293		final String ringtone = preferences.getString("notification_ringtone", resources.getString(R.string.notification_ringtone));
294		final boolean vibrate = preferences.getBoolean("vibrate_on_notification", resources.getBoolean(R.bool.vibrate_on_notification));
295		final boolean led = preferences.getBoolean("led", resources.getBoolean(R.bool.led));
296		final boolean headsup = preferences.getBoolean("notification_headsup", resources.getBoolean(R.bool.headsup_notifications));
297		if (notify && !isQuietHours()) {
298			if (vibrate) {
299				final int dat = 70;
300				final long[] pattern = {0, 3 * dat, dat, dat};
301				mBuilder.setVibrate(pattern);
302			} else {
303				mBuilder.setVibrate(new long[]{0});
304			}
305			Uri uri = Uri.parse(ringtone);
306			try {
307				mBuilder.setSound(fixRingtoneUri(uri));
308			} catch (SecurityException e) {
309				Log.d(Config.LOGTAG,"unable to use custom notification sound "+uri.toString());
310			}
311		}
312		if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
313			mBuilder.setCategory(Notification.CATEGORY_MESSAGE);
314		}
315		mBuilder.setPriority(notify ? (headsup ? NotificationCompat.PRIORITY_HIGH : NotificationCompat.PRIORITY_DEFAULT) : NotificationCompat.PRIORITY_LOW);
316		setNotificationColor(mBuilder);
317		mBuilder.setDefaults(0);
318		if (led) {
319			mBuilder.setLights(0xff00FF00, 2000, 3000);
320		}
321	}
322
323	private Uri fixRingtoneUri(Uri uri) {
324		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N && "file".equals(uri.getScheme())) {
325			return FileBackend.getUriForFile(mXmppConnectionService,new File(uri.getPath()));
326		} else {
327			return uri;
328		}
329	}
330
331	private Builder buildMultipleConversation() {
332		final Builder mBuilder = new NotificationCompat.Builder(
333				mXmppConnectionService);
334		final NotificationCompat.InboxStyle style = new NotificationCompat.InboxStyle();
335		style.setBigContentTitle(notifications.size()
336				+ " "
337				+ mXmppConnectionService
338				.getString(R.string.unread_conversations));
339		final StringBuilder names = new StringBuilder();
340		Conversation conversation = null;
341		for (final ArrayList<Message> messages : notifications.values()) {
342			if (messages.size() > 0) {
343				conversation = messages.get(0).getConversation();
344				final String name = conversation.getName();
345				SpannableString styledString;
346				if (Config.HIDE_MESSAGE_TEXT_IN_NOTIFICATION) {
347					int count = messages.size();
348					styledString = new SpannableString(name + ": " + mXmppConnectionService.getResources().getQuantityString(R.plurals.x_messages,count,count));
349					styledString.setSpan(new StyleSpan(Typeface.BOLD), 0, name.length(), 0);
350					style.addLine(styledString);
351				} else {
352					styledString = new SpannableString(name + ": " + UIHelper.getMessagePreview(mXmppConnectionService, messages.get(0)).first);
353					styledString.setSpan(new StyleSpan(Typeface.BOLD), 0, name.length(), 0);
354					style.addLine(styledString);
355				}
356				names.append(name);
357				names.append(", ");
358			}
359		}
360		if (names.length() >= 2) {
361			names.delete(names.length() - 2, names.length());
362		}
363		mBuilder.setContentTitle(notifications.size()
364				+ " "
365				+ mXmppConnectionService
366				.getString(R.string.unread_conversations));
367		mBuilder.setContentText(names.toString());
368		mBuilder.setStyle(style);
369		if (conversation != null) {
370			mBuilder.setContentIntent(createContentIntent(conversation));
371		}
372		mBuilder.setGroupSummary(true);
373		mBuilder.setGroup(CONVERSATIONS_GROUP);
374		mBuilder.setDeleteIntent(createDeleteIntent(null));
375		mBuilder.setSmallIcon(R.drawable.ic_notification);
376		return mBuilder;
377	}
378
379	private Builder buildSingleConversations(final ArrayList<Message> messages) {
380		final Builder mBuilder = new NotificationCompat.Builder(mXmppConnectionService);
381		if (messages.size() >= 1) {
382			final Conversation conversation = messages.get(0).getConversation();
383			final UnreadConversation.Builder mUnreadBuilder = new UnreadConversation.Builder(conversation.getName());
384			mBuilder.setLargeIcon(mXmppConnectionService.getAvatarService()
385					.get(conversation, getPixel(64)));
386			mBuilder.setContentTitle(conversation.getName());
387			if (Config.HIDE_MESSAGE_TEXT_IN_NOTIFICATION) {
388				int count = messages.size();
389				mBuilder.setContentText(mXmppConnectionService.getResources().getQuantityString(R.plurals.x_messages,count,count));
390			} else {
391				Message message;
392				if ((message = getImage(messages)) != null) {
393					modifyForImage(mBuilder, mUnreadBuilder, message, messages);
394				} else {
395					modifyForTextOnly(mBuilder, mUnreadBuilder, messages);
396				}
397				RemoteInput remoteInput = new RemoteInput.Builder("text_reply").setLabel(UIHelper.getMessageHint(mXmppConnectionService, conversation)).build();
398				NotificationCompat.Action markReadAction = new NotificationCompat.Action.Builder(R.drawable.ic_send_text_offline, "Mark As Read", createReadPendingIntent(conversation)).build();
399				NotificationCompat.Action replyAction = new NotificationCompat.Action.Builder(R.drawable.ic_send_text_offline, "Reply", createReplyIntent(conversation, false)).addRemoteInput(remoteInput).build();
400				NotificationCompat.Action wearReplyAction = new NotificationCompat.Action.Builder(R.drawable.ic_wear_reply, "Reply", createReplyIntent(conversation, true)).addRemoteInput(remoteInput).build();
401				mBuilder.extend(new NotificationCompat.WearableExtender().addAction(wearReplyAction));
402				mUnreadBuilder.setReplyAction(createReplyIntent(conversation, true), remoteInput);
403				mUnreadBuilder.setReadPendingIntent(createReadPendingIntent(conversation));
404				mBuilder.extend(new NotificationCompat.CarExtender().setUnreadConversation(mUnreadBuilder.build()));
405				if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
406					mBuilder.addAction(markReadAction);
407					mBuilder.addAction(replyAction);
408				}
409				if ((message = getFirstDownloadableMessage(messages)) != null) {
410					mBuilder.addAction(
411							Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP ?
412									R.drawable.ic_file_download_white_24dp : R.drawable.ic_action_download,
413							mXmppConnectionService.getResources().getString(R.string.download_x_file,
414									UIHelper.getFileDescriptionString(mXmppConnectionService, message)),
415							createDownloadIntent(message)
416					);
417				}
418				if ((message = getFirstLocationMessage(messages)) != null) {
419					mBuilder.addAction(R.drawable.ic_room_white_24dp,
420							mXmppConnectionService.getString(R.string.show_location),
421							createShowLocationIntent(message));
422				}
423			}
424			if (conversation.getMode() == Conversation.MODE_SINGLE) {
425				Contact contact = conversation.getContact();
426				Uri systemAccount = contact.getSystemAccount();
427				if (systemAccount != null) {
428					mBuilder.addPerson(systemAccount.toString());
429				}
430			}
431			mBuilder.setWhen(conversation.getLatestMessage().getTimeSent());
432			mBuilder.setSmallIcon(R.drawable.ic_notification);
433			mBuilder.setDeleteIntent(createDeleteIntent(conversation));
434			mBuilder.setContentIntent(createContentIntent(conversation));
435		}
436		return mBuilder;
437	}
438
439	private void modifyForImage(final Builder builder, final UnreadConversation.Builder uBuilder,
440								final Message message, final ArrayList<Message> messages) {
441		try {
442			final Bitmap bitmap = mXmppConnectionService.getFileBackend()
443					.getThumbnail(message, getPixel(288), false);
444			final ArrayList<Message> tmp = new ArrayList<>();
445			for (final Message msg : messages) {
446				if (msg.getType() == Message.TYPE_TEXT
447						&& msg.getTransferable() == null) {
448					tmp.add(msg);
449				}
450			}
451			final BigPictureStyle bigPictureStyle = new NotificationCompat.BigPictureStyle();
452			bigPictureStyle.bigPicture(bitmap);
453			if (tmp.size() > 0) {
454				CharSequence text = getMergedBodies(tmp);
455				bigPictureStyle.setSummaryText(text);
456				builder.setContentText(text);
457			} else {
458				builder.setContentText(mXmppConnectionService.getString(
459						R.string.received_x_file,
460						UIHelper.getFileDescriptionString(mXmppConnectionService, message)));
461			}
462			builder.setStyle(bigPictureStyle);
463		} catch (final FileNotFoundException e) {
464			modifyForTextOnly(builder, uBuilder, messages);
465		}
466	}
467
468	private void modifyForTextOnly(final Builder builder, final UnreadConversation.Builder uBuilder, final ArrayList<Message> messages) {
469		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
470			NotificationCompat.MessagingStyle messagingStyle = new NotificationCompat.MessagingStyle(mXmppConnectionService.getString(R.string.me));
471			Conversation conversation = messages.get(0).getConversation();
472			if (conversation.getMode() == Conversation.MODE_MULTI) {
473				messagingStyle.setConversationTitle(conversation.getName());
474			}
475			for (Message message : messages) {
476				String sender = message.getStatus() == Message.STATUS_RECEIVED ? UIHelper.getMessageDisplayName(message) : null;
477				messagingStyle.addMessage(UIHelper.getMessagePreview(mXmppConnectionService,message).first, message.getTimeSent(), sender);
478			}
479			builder.setStyle(messagingStyle);
480		} else {
481			if(messages.get(0).getConversation().getMode() == Conversation.MODE_SINGLE) {
482				builder.setStyle(new NotificationCompat.BigTextStyle().bigText(getMergedBodies(messages)));
483				builder.setContentText(UIHelper.getMessagePreview(mXmppConnectionService, messages.get(0)).first);
484			} else {
485				final NotificationCompat.InboxStyle style = new NotificationCompat.InboxStyle();
486				SpannableString styledString;
487				for (Message message : messages) {
488					final String name = UIHelper.getMessageDisplayName(message);
489					styledString = new SpannableString(name + ": " + message.getBody());
490					styledString.setSpan(new StyleSpan(Typeface.BOLD), 0, name.length(), 0);
491					style.addLine(styledString);
492				}
493				builder.setStyle(style);
494				int count = messages.size();
495				if(count == 1) {
496					final String name = UIHelper.getMessageDisplayName(messages.get(0));
497					styledString = new SpannableString(name + ": " + messages.get(0).getBody());
498					styledString.setSpan(new StyleSpan(Typeface.BOLD), 0, name.length(), 0);
499					builder.setContentText(styledString);
500				} else {
501					builder.setContentText(mXmppConnectionService.getResources().getQuantityString(R.plurals.x_messages,count,count));
502				}
503			}
504		}
505		/** message preview for Android Auto **/
506		for (Message message : messages) {
507			Pair<String,Boolean> preview = UIHelper.getMessagePreview(mXmppConnectionService, message);
508			// only show user written text
509			if (!preview.second) {
510				uBuilder.addMessage(preview.first);
511				uBuilder.setLatestTimestamp(message.getTimeSent());
512			}
513		}
514	}
515
516	private Message getImage(final Iterable<Message> messages) {
517		Message image = null;
518		for (final Message message : messages) {
519			if (message.getStatus() != Message.STATUS_RECEIVED) {
520				return null;
521			}
522			if (message.getType() != Message.TYPE_TEXT
523					&& message.getTransferable() == null
524					&& message.getEncryption() != Message.ENCRYPTION_PGP
525					&& message.getFileParams().height > 0) {
526				image = message;
527			}
528		}
529		return image;
530	}
531
532	private Message getFirstDownloadableMessage(final Iterable<Message> messages) {
533		for (final Message message : messages) {
534			if (message.getTransferable() != null || (message.getType() == Message.TYPE_TEXT && message.treatAsDownloadable())) {
535				return message;
536			}
537		}
538		return null;
539	}
540
541	private Message getFirstLocationMessage(final Iterable<Message> messages) {
542		for (final Message message : messages) {
543			if (message.isGeoUri()) {
544				return message;
545			}
546		}
547		return null;
548	}
549
550	private CharSequence getMergedBodies(final ArrayList<Message> messages) {
551		final StringBuilder text = new StringBuilder();
552		for(Message message : messages) {
553			if (text.length() != 0) {
554				text.append("\n");
555			}
556			text.append(UIHelper.getMessagePreview(mXmppConnectionService, message).first);
557		}
558		return text.toString();
559	}
560
561	private PendingIntent createShowLocationIntent(final Message message) {
562		Iterable<Intent> intents = GeoHelper.createGeoIntentsFromMessage(message);
563		for (Intent intent : intents) {
564			if (intent.resolveActivity(mXmppConnectionService.getPackageManager()) != null) {
565				return PendingIntent.getActivity(mXmppConnectionService, 18, intent, PendingIntent.FLAG_UPDATE_CURRENT);
566			}
567		}
568		return createOpenConversationsIntent();
569	}
570
571	private PendingIntent createContentIntent(final String conversationUuid, final String downloadMessageUuid) {
572		final Intent viewConversationIntent = new Intent(mXmppConnectionService,ConversationActivity.class);
573		viewConversationIntent.setAction(ConversationActivity.ACTION_VIEW_CONVERSATION);
574		viewConversationIntent.putExtra(ConversationActivity.CONVERSATION, conversationUuid);
575		if (downloadMessageUuid != null) {
576			viewConversationIntent.putExtra(ConversationActivity.EXTRA_DOWNLOAD_UUID, downloadMessageUuid);
577			return PendingIntent.getActivity(mXmppConnectionService,
578					(conversationUuid.hashCode() % NOTIFICATION_ID_MULTIPLIER) + 8 * NOTIFICATION_ID_MULTIPLIER,
579					viewConversationIntent,
580					PendingIntent.FLAG_UPDATE_CURRENT);
581		} else {
582			return PendingIntent.getActivity(mXmppConnectionService,
583					(conversationUuid.hashCode() % NOTIFICATION_ID_MULTIPLIER) + 10 * NOTIFICATION_ID_MULTIPLIER,
584					viewConversationIntent,
585					PendingIntent.FLAG_UPDATE_CURRENT);
586		}
587	}
588
589	private PendingIntent createDownloadIntent(final Message message) {
590		return createContentIntent(message.getConversationUuid(), message.getUuid());
591	}
592
593	private PendingIntent createContentIntent(final Conversation conversation) {
594		return createContentIntent(conversation.getUuid(), null);
595	}
596
597	private PendingIntent createDeleteIntent(Conversation conversation) {
598		final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
599		intent.setAction(XmppConnectionService.ACTION_CLEAR_NOTIFICATION);
600		if (conversation != null) {
601			intent.putExtra("uuid", conversation.getUuid());
602			return PendingIntent.getService(mXmppConnectionService, (conversation.getUuid().hashCode() % NOTIFICATION_ID_MULTIPLIER) + 12 * NOTIFICATION_ID_MULTIPLIER, intent, 0);
603		}
604		return PendingIntent.getService(mXmppConnectionService, 0, intent, 0);
605	}
606
607	private PendingIntent createReplyIntent(Conversation conversation, boolean dismissAfterReply) {
608		final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
609		intent.setAction(XmppConnectionService.ACTION_REPLY_TO_CONVERSATION);
610		intent.putExtra("uuid",conversation.getUuid());
611		intent.putExtra("dismiss_notification",dismissAfterReply);
612		int id =  (conversation.getUuid().hashCode() % NOTIFICATION_ID_MULTIPLIER) + (dismissAfterReply ? 12 : 14) * NOTIFICATION_ID_MULTIPLIER;
613		return PendingIntent.getService(mXmppConnectionService, id, intent, 0);
614	}
615
616	private PendingIntent createReadPendingIntent(Conversation conversation) {
617		final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
618		intent.setAction(XmppConnectionService.ACTION_MARK_AS_READ);
619		intent.putExtra("uuid", conversation.getUuid());
620		intent.setPackage(mXmppConnectionService.getPackageName());
621		return PendingIntent.getService(mXmppConnectionService, (conversation.getUuid().hashCode() % NOTIFICATION_ID_MULTIPLIER) + 16 * NOTIFICATION_ID_MULTIPLIER, intent, PendingIntent.FLAG_UPDATE_CURRENT);
622	}
623
624	private PendingIntent createTryAgainIntent() {
625		final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
626		intent.setAction(XmppConnectionService.ACTION_TRY_AGAIN);
627		return PendingIntent.getService(mXmppConnectionService, 45, intent, 0);
628	}
629
630	private PendingIntent createDismissErrorIntent() {
631		final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
632		intent.setAction(XmppConnectionService.ACTION_DISMISS_ERROR_NOTIFICATIONS);
633		return PendingIntent.getService(mXmppConnectionService, 69, intent, 0);
634	}
635
636	private boolean wasHighlightedOrPrivate(final Message message) {
637		final String nick = message.getConversation().getMucOptions().getActualNick();
638		final Pattern highlight = generateNickHighlightPattern(nick);
639		if (message.getBody() == null || nick == null) {
640			return false;
641		}
642		final Matcher m = highlight.matcher(message.getBody());
643		return (m.find() || message.getType() == Message.TYPE_PRIVATE);
644	}
645
646	public static Pattern generateNickHighlightPattern(final String nick) {
647		// We expect a word boundary, i.e. space or start of string, followed by
648		// the
649		// nick (matched in case-insensitive manner), followed by optional
650		// punctuation (for example "bob: i disagree" or "how are you alice?"),
651		// followed by another word boundary.
652		return Pattern.compile("\\b" + Pattern.quote(nick) + "\\p{Punct}?\\b",
653				Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE);
654	}
655
656	public void setOpenConversation(final Conversation conversation) {
657		this.mOpenConversation = conversation;
658	}
659
660	public void setIsInForeground(final boolean foreground) {
661		this.mIsInForeground = foreground;
662	}
663
664	private int getPixel(final int dp) {
665		final DisplayMetrics metrics = mXmppConnectionService.getResources()
666				.getDisplayMetrics();
667		return ((int) (dp * metrics.density));
668	}
669
670	private void markLastNotification() {
671		this.mLastNotification = SystemClock.elapsedRealtime();
672	}
673
674	private boolean inMiniGracePeriod(final Account account) {
675		final int miniGrace = account.getStatus() == Account.State.ONLINE ? Config.MINI_GRACE_PERIOD
676				: Config.MINI_GRACE_PERIOD * 2;
677		return SystemClock.elapsedRealtime() < (this.mLastNotification + miniGrace);
678	}
679
680	public Notification createForegroundNotification() {
681		final NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(mXmppConnectionService);
682
683		mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.conversations_foreground_service));
684		if (Config.SHOW_CONNECTED_ACCOUNTS) {
685			List<Account> accounts = mXmppConnectionService.getAccounts();
686			int enabled = 0;
687			int connected = 0;
688			for (Account account : accounts) {
689				if (account.isOnlineAndConnected()) {
690					connected++;
691					enabled++;
692				} else if (account.isEnabled()) {
693					enabled++;
694				}
695			}
696			mBuilder.setContentText(mXmppConnectionService.getString(R.string.connected_accounts, connected, enabled));
697		} else {
698			mBuilder.setContentText(mXmppConnectionService.getString(R.string.touch_to_open_conversations));
699		}
700		mBuilder.setContentIntent(createOpenConversationsIntent());
701		mBuilder.setWhen(0);
702		mBuilder.setPriority(Config.SHOW_CONNECTED_ACCOUNTS ? NotificationCompat.PRIORITY_DEFAULT : NotificationCompat.PRIORITY_MIN);
703		mBuilder.setSmallIcon(R.drawable.ic_link_white_24dp);
704		return mBuilder.build();
705	}
706
707	private PendingIntent createOpenConversationsIntent() {
708		return PendingIntent.getActivity(mXmppConnectionService, 0, new Intent(mXmppConnectionService, ConversationActivity.class), 0);
709	}
710
711	public void updateErrorNotification() {
712		final NotificationManagerCompat notificationManager = NotificationManagerCompat.from(mXmppConnectionService);
713		final List<Account> errors = new ArrayList<>();
714		for (final Account account : mXmppConnectionService.getAccounts()) {
715			if (account.hasErrorStatus() && account.showErrorNotification()) {
716				errors.add(account);
717			}
718		}
719		if (mXmppConnectionService.keepForegroundService()) {
720			notificationManager.notify(FOREGROUND_NOTIFICATION_ID, createForegroundNotification());
721		}
722		final NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(mXmppConnectionService);
723		if (errors.size() == 0) {
724			notificationManager.cancel(ERROR_NOTIFICATION_ID);
725			return;
726		} else if (errors.size() == 1) {
727			mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.problem_connecting_to_account));
728			mBuilder.setContentText(errors.get(0).getJid().toBareJid().toString());
729		} else {
730			mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.problem_connecting_to_accounts));
731			mBuilder.setContentText(mXmppConnectionService.getString(R.string.touch_to_fix));
732		}
733		mBuilder.addAction(R.drawable.ic_autorenew_white_24dp,
734				mXmppConnectionService.getString(R.string.try_again),
735				createTryAgainIntent());
736		mBuilder.setDeleteIntent(createDismissErrorIntent());
737		mBuilder.setVisibility(NotificationCompat.VISIBILITY_PUBLIC);
738		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
739			mBuilder.setSmallIcon(R.drawable.ic_warning_white_24dp);
740		} else {
741			mBuilder.setSmallIcon(R.drawable.ic_stat_alert_warning);
742		}
743		mBuilder.setPriority(NotificationCompat.PRIORITY_LOW);
744		mBuilder.setContentIntent(PendingIntent.getActivity(mXmppConnectionService,
745				145,
746				new Intent(mXmppConnectionService,ManageAccountActivity.class),
747				PendingIntent.FLAG_UPDATE_CURRENT));
748		notificationManager.notify(ERROR_NOTIFICATION_ID, mBuilder.build());
749	}
750
751	public Notification updateFileAddingNotification(int current, Message message) {
752		final NotificationManagerCompat notificationManager = NotificationManagerCompat.from(mXmppConnectionService);
753		NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(mXmppConnectionService);
754		mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.transcoding_video));
755		mBuilder.setProgress(100, current, false);
756		mBuilder.setSmallIcon(R.drawable.ic_hourglass_empty_white_24dp);
757		mBuilder.setContentIntent(createContentIntent(message.getConversation()));
758		Notification notification = mBuilder.build();
759		notificationManager.notify(FOREGROUND_NOTIFICATION_ID, notification);
760		return notification;
761	}
762}