1package eu.siacs.conversations.services;
  2
  3import android.annotation.SuppressLint;
  4import android.app.Notification;
  5import android.app.NotificationManager;
  6import android.app.PendingIntent;
  7import android.content.Context;
  8import android.content.Intent;
  9import android.content.SharedPreferences;
 10import android.graphics.Bitmap;
 11import android.net.Uri;
 12import android.os.Build;
 13import android.os.PowerManager;
 14import android.os.SystemClock;
 15import android.support.v4.app.NotificationCompat;
 16import android.support.v4.app.NotificationCompat.BigPictureStyle;
 17import android.support.v4.app.NotificationCompat.Builder;
 18import android.support.v4.app.TaskStackBuilder;
 19import android.text.Html;
 20import android.util.DisplayMetrics;
 21import android.util.Log;
 22
 23import org.json.JSONArray;
 24import org.json.JSONObject;
 25
 26import java.io.FileNotFoundException;
 27import java.util.ArrayList;
 28import java.util.Calendar;
 29import java.util.HashMap;
 30import java.util.LinkedHashMap;
 31import java.util.List;
 32import java.util.regex.Matcher;
 33import java.util.regex.Pattern;
 34
 35import eu.siacs.conversations.Config;
 36import eu.siacs.conversations.R;
 37import eu.siacs.conversations.entities.Account;
 38import eu.siacs.conversations.entities.Conversation;
 39import eu.siacs.conversations.entities.Message;
 40import eu.siacs.conversations.ui.ConversationActivity;
 41import eu.siacs.conversations.ui.ManageAccountActivity;
 42import eu.siacs.conversations.ui.TimePreference;
 43import eu.siacs.conversations.utils.UIHelper;
 44import eu.siacs.conversations.xmpp.XmppConnection;
 45
 46public class NotificationService {
 47
 48	private final XmppConnectionService mXmppConnectionService;
 49
 50	private final LinkedHashMap<String, ArrayList<Message>> notifications = new LinkedHashMap<>();
 51
 52	public static final int NOTIFICATION_ID = 0x2342;
 53	public static final int FOREGROUND_NOTIFICATION_ID = 0x8899;
 54	public static final int ERROR_NOTIFICATION_ID = 0x5678;
 55
 56	private Conversation mOpenConversation;
 57	private boolean mIsInForeground;
 58	private long mLastNotification;
 59
 60	public NotificationService(final XmppConnectionService service) {
 61		this.mXmppConnectionService = service;
 62	}
 63
 64	public boolean notify(final Message message) {
 65		return (message.getStatus() == Message.STATUS_RECEIVED)
 66			&& notificationsEnabled()
 67			&& !message.getConversation().isMuted()
 68			&& (message.getConversation().getMode() == Conversation.MODE_SINGLE
 69					|| conferenceNotificationsEnabled()
 70					|| wasHighlightedOrPrivate(message)
 71				 );
 72	}
 73
 74	public void notifyPebble(final Message message) {
 75		final Intent i = new Intent("com.getpebble.action.SEND_NOTIFICATION");
 76
 77		final Conversation conversation = message.getConversation();
 78		final JSONObject jsonData = new JSONObject(new HashMap<String, String>(2) {{
 79			put("title", conversation.getName());
 80			put("body", message.getBody());
 81		}});
 82		final String notificationData = new JSONArray().put(jsonData).toString();
 83
 84		i.putExtra("messageType", "PEBBLE_ALERT");
 85		i.putExtra("sender", "Conversations"); /* XXX: Shouldn't be hardcoded, e.g., AbstractGenerator.APP_NAME); */
 86		i.putExtra("notificationData", notificationData);
 87
 88		mXmppConnectionService.sendBroadcast(i);
 89	}
 90
 91
 92	public boolean notificationsEnabled() {
 93		return mXmppConnectionService.getPreferences().getBoolean("show_notification", true);
 94	}
 95
 96	public boolean isQuietHours() {
 97		if (!mXmppConnectionService.getPreferences().getBoolean("enable_quiet_hours", false)) {
 98			return false;
 99		}
100		final long startTime = mXmppConnectionService.getPreferences().getLong("quiet_hours_start", TimePreference.DEFAULT_VALUE) % Config.MILLISECONDS_IN_DAY;
101		final long endTime = mXmppConnectionService.getPreferences().getLong("quiet_hours_end", TimePreference.DEFAULT_VALUE) % Config.MILLISECONDS_IN_DAY;
102		final long nowTime = Calendar.getInstance().getTimeInMillis() % Config.MILLISECONDS_IN_DAY;
103
104		if (endTime < startTime) {
105			return nowTime > startTime || nowTime < endTime;
106		} else {
107			return nowTime > startTime && nowTime < endTime;
108		}
109	}
110
111	public boolean conferenceNotificationsEnabled() {
112		return mXmppConnectionService.getPreferences().getBoolean("always_notify_in_conference", false);
113	}
114
115	@SuppressLint("NewApi")
116	@SuppressWarnings("deprecation")
117	private boolean isInteractive() {
118		final PowerManager pm = (PowerManager) mXmppConnectionService
119			.getSystemService(Context.POWER_SERVICE);
120
121		final boolean isScreenOn;
122		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
123			isScreenOn = pm.isScreenOn();
124		} else {
125			isScreenOn = pm.isInteractive();
126		}
127
128		return isScreenOn;
129	}
130
131	public void push(final Message message) {
132		if (!notify(message)) {
133			return;
134		}
135
136		final boolean isScreenOn = isInteractive();
137
138		if (this.mIsInForeground && isScreenOn && this.mOpenConversation == message.getConversation()) {
139			return;
140		}
141
142		synchronized (notifications) {
143			final String conversationUuid = message.getConversationUuid();
144			if (notifications.containsKey(conversationUuid)) {
145				notifications.get(conversationUuid).add(message);
146			} else {
147				final ArrayList<Message> mList = new ArrayList<>();
148				mList.add(message);
149				notifications.put(conversationUuid, mList);
150			}
151			final Account account = message.getConversation().getAccount();
152			final boolean doNotify = (!(this.mIsInForeground && this.mOpenConversation == null) || !isScreenOn)
153				&& !account.inGracePeriod()
154				&& !this.inMiniGracePeriod(account);
155			updateNotification(doNotify);
156			if (doNotify) {
157				notifyPebble(message);
158			}
159		}
160	}
161
162	public void clear() {
163		synchronized (notifications) {
164			notifications.clear();
165			updateNotification(false);
166		}
167	}
168
169	public void clear(final Conversation conversation) {
170		synchronized (notifications) {
171			notifications.remove(conversation.getUuid());
172			updateNotification(false);
173		}
174	}
175
176	private void setNotificationColor(final Builder mBuilder) {
177		mBuilder.setColor(mXmppConnectionService.getResources().getColor(R.color.primary));
178	}
179
180	private void updateNotification(final boolean notify) {
181		final NotificationManager notificationManager = (NotificationManager) mXmppConnectionService
182			.getSystemService(Context.NOTIFICATION_SERVICE);
183		final SharedPreferences preferences = mXmppConnectionService.getPreferences();
184
185		final String ringtone = preferences.getString("notification_ringtone", null);
186		final boolean vibrate = preferences.getBoolean("vibrate_on_notification", true);
187
188		if (notifications.size() == 0) {
189			notificationManager.cancel(NOTIFICATION_ID);
190		} else {
191			if (notify) {
192				this.markLastNotification();
193			}
194			final Builder mBuilder;
195			if (notifications.size() == 1) {
196				mBuilder = buildSingleConversations(notify);
197			} else {
198				mBuilder = buildMultipleConversation();
199			}
200			if (notify && !isQuietHours()) {
201				if (vibrate) {
202					final int dat = 70;
203					final long[] pattern = {0, 3 * dat, dat, dat};
204					mBuilder.setVibrate(pattern);
205				}
206				if (ringtone != null) {
207					mBuilder.setSound(Uri.parse(ringtone));
208				}
209			}
210			if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
211				mBuilder.setCategory(Notification.CATEGORY_MESSAGE);
212			}
213			setNotificationColor(mBuilder);
214			mBuilder.setDefaults(0);
215			mBuilder.setSmallIcon(R.drawable.ic_notification);
216			mBuilder.setDeleteIntent(createDeleteIntent());
217			mBuilder.setLights(0xffffffff, 2000, 4000);
218			final Notification notification = mBuilder.build();
219			notificationManager.notify(NOTIFICATION_ID, notification);
220		}
221	}
222
223	private Builder buildMultipleConversation() {
224		final Builder mBuilder = new NotificationCompat.Builder(
225				mXmppConnectionService);
226		final NotificationCompat.InboxStyle style = new NotificationCompat.InboxStyle();
227		style.setBigContentTitle(notifications.size()
228				+ " "
229				+ mXmppConnectionService
230				.getString(R.string.unread_conversations));
231		final StringBuilder names = new StringBuilder();
232		Conversation conversation = null;
233		for (final ArrayList<Message> messages : notifications.values()) {
234			if (messages.size() > 0) {
235				conversation = messages.get(0).getConversation();
236				final String name = conversation.getName();
237				style.addLine(Html.fromHtml("<b>" + name + "</b> "
238							+ UIHelper.getMessagePreview(mXmppConnectionService,messages.get(0)).first));
239				names.append(name);
240				names.append(", ");
241			}
242		}
243		if (names.length() >= 2) {
244			names.delete(names.length() - 2, names.length());
245		}
246		mBuilder.setContentTitle(notifications.size()
247				+ " "
248				+ mXmppConnectionService
249				.getString(R.string.unread_conversations));
250		mBuilder.setContentText(names.toString());
251		mBuilder.setStyle(style);
252		if (conversation != null) {
253			mBuilder.setContentIntent(createContentIntent(conversation));
254		}
255		return mBuilder;
256	}
257
258	private Builder buildSingleConversations(final boolean notify) {
259		final Builder mBuilder = new NotificationCompat.Builder(
260				mXmppConnectionService);
261		final ArrayList<Message> messages = notifications.values().iterator().next();
262		if (messages.size() >= 1) {
263			final Conversation conversation = messages.get(0).getConversation();
264			mBuilder.setLargeIcon(mXmppConnectionService.getAvatarService()
265					.get(conversation, getPixel(64)));
266			mBuilder.setContentTitle(conversation.getName());
267			Message message;
268			if ((message = getImage(messages)) != null) {
269				modifyForImage(mBuilder, message, messages, notify);
270			} else {
271				modifyForTextOnly(mBuilder, messages, notify);
272			}
273			if ((message = getFirstDownloadableMessage(messages)) != null) {
274				mBuilder.addAction(
275						Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP ?
276								R.drawable.ic_file_download_white_24dp : R.drawable.ic_action_download,
277						mXmppConnectionService.getResources().getString(R.string.download_x_file,
278							UIHelper.getFileDescriptionString(mXmppConnectionService, message)),
279						createDownloadIntent(message)
280						);
281			}
282			mBuilder.setContentIntent(createContentIntent(conversation));
283		}
284		return mBuilder;
285	}
286
287	private void modifyForImage(final Builder builder, final Message message,
288			final ArrayList<Message> messages, final boolean notify) {
289		try {
290			final Bitmap bitmap = mXmppConnectionService.getFileBackend()
291				.getThumbnail(message, getPixel(288), false);
292			final ArrayList<Message> tmp = new ArrayList<>();
293			for (final Message msg : messages) {
294				if (msg.getType() == Message.TYPE_TEXT
295						&& msg.getDownloadable() == null) {
296					tmp.add(msg);
297						}
298			}
299			final BigPictureStyle bigPictureStyle = new NotificationCompat.BigPictureStyle();
300			bigPictureStyle.bigPicture(bitmap);
301			if (tmp.size() > 0) {
302				bigPictureStyle.setSummaryText(getMergedBodies(tmp));
303				builder.setContentText(UIHelper.getMessagePreview(mXmppConnectionService,tmp.get(0)).first);
304			} else {
305				builder.setContentText(mXmppConnectionService.getString(
306						R.string.received_x_file,
307						UIHelper.getFileDescriptionString(mXmppConnectionService,message)));
308			}
309			builder.setStyle(bigPictureStyle);
310		} catch (final FileNotFoundException e) {
311			modifyForTextOnly(builder, messages, notify);
312		}
313	}
314
315	private void modifyForTextOnly(final Builder builder,
316			final ArrayList<Message> messages, final boolean notify) {
317		builder.setStyle(new NotificationCompat.BigTextStyle().bigText(getMergedBodies(messages)));
318		builder.setContentText(UIHelper.getMessagePreview(mXmppConnectionService,messages.get(0)).first);
319		if (notify) {
320			builder.setTicker(UIHelper.getMessagePreview(mXmppConnectionService,messages.get(messages.size() - 1)).first);
321		}
322	}
323
324	private Message getImage(final Iterable<Message> messages) {
325		for (final Message message : messages) {
326			if (message.getType() == Message.TYPE_IMAGE
327					&& message.getDownloadable() == null
328					&& message.getEncryption() != Message.ENCRYPTION_PGP) {
329				return message;
330					}
331		}
332		return null;
333	}
334
335	private Message getFirstDownloadableMessage(final Iterable<Message> messages) {
336		for (final Message message : messages) {
337			if ((message.getType() == Message.TYPE_FILE || message.getType() == Message.TYPE_IMAGE) &&
338					message.getDownloadable() != null) {
339				return message;
340			}
341		}
342		return null;
343	}
344
345	private CharSequence getMergedBodies(final ArrayList<Message> messages) {
346		final StringBuilder text = new StringBuilder();
347		for (int i = 0; i < messages.size(); ++i) {
348			text.append(UIHelper.getMessagePreview(mXmppConnectionService,messages.get(i)).first);
349			if (i != messages.size() - 1) {
350				text.append("\n");
351			}
352		}
353		return text.toString();
354	}
355
356	private PendingIntent createContentIntent(final String conversationUuid, final String downloadMessageUuid) {
357		final TaskStackBuilder stackBuilder = TaskStackBuilder
358			.create(mXmppConnectionService);
359		stackBuilder.addParentStack(ConversationActivity.class);
360
361		final Intent viewConversationIntent = new Intent(mXmppConnectionService,
362				ConversationActivity.class);
363		if (downloadMessageUuid != null) {
364			viewConversationIntent.setAction(ConversationActivity.ACTION_DOWNLOAD);
365		} else {
366			viewConversationIntent.setAction(Intent.ACTION_VIEW);
367		}
368		if (conversationUuid != null) {
369			viewConversationIntent.putExtra(ConversationActivity.CONVERSATION, conversationUuid);
370			viewConversationIntent.setType(ConversationActivity.VIEW_CONVERSATION);
371		}
372		if (downloadMessageUuid != null) {
373			viewConversationIntent.putExtra(ConversationActivity.MESSAGE, downloadMessageUuid);
374		}
375
376		stackBuilder.addNextIntent(viewConversationIntent);
377
378		return stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
379	}
380
381	private PendingIntent createDownloadIntent(final Message message) {
382		return createContentIntent(message.getConversationUuid(), message.getUuid());
383	}
384
385	private PendingIntent createContentIntent(final Conversation conversation) {
386		return createContentIntent(conversation.getUuid(), null);
387	}
388
389	private PendingIntent createDeleteIntent() {
390		final Intent intent = new Intent(mXmppConnectionService,
391				XmppConnectionService.class);
392		intent.setAction(XmppConnectionService.ACTION_CLEAR_NOTIFICATION);
393		return PendingIntent.getService(mXmppConnectionService, 0, intent, 0);
394	}
395
396	private PendingIntent createDisableForeground() {
397		final Intent intent = new Intent(mXmppConnectionService,
398				XmppConnectionService.class);
399		intent.setAction(XmppConnectionService.ACTION_DISABLE_FOREGROUND);
400		return PendingIntent.getService(mXmppConnectionService, 34, intent, 0);
401	}
402
403	private PendingIntent createTryAgainIntent() {
404		final Intent intent = new Intent(mXmppConnectionService, XmppConnectionService.class);
405		intent.setAction(XmppConnectionService.ACTION_TRY_AGAIN);
406		return PendingIntent.getService(mXmppConnectionService, 45, intent, 0);
407	}
408
409	private PendingIntent createDisableAccountIntent(final Account account) {
410		final Intent intent = new Intent(mXmppConnectionService,XmppConnectionService.class);
411		intent.setAction(XmppConnectionService.ACTION_DISABLE_ACCOUNT);
412		intent.putExtra("account",account.getJid().toBareJid().toString());
413		return PendingIntent.getService(mXmppConnectionService,0,intent,PendingIntent.FLAG_UPDATE_CURRENT);
414	}
415
416	private boolean wasHighlightedOrPrivate(final Message message) {
417		final String nick = message.getConversation().getMucOptions().getActualNick();
418		final Pattern highlight = generateNickHighlightPattern(nick);
419		if (message.getBody() == null || nick == null) {
420			return false;
421		}
422		final Matcher m = highlight.matcher(message.getBody());
423		return (m.find() || message.getType() == Message.TYPE_PRIVATE);
424	}
425
426	private static Pattern generateNickHighlightPattern(final String nick) {
427		// We expect a word boundary, i.e. space or start of string, followed by
428		// the
429		// nick (matched in case-insensitive manner), followed by optional
430		// punctuation (for example "bob: i disagree" or "how are you alice?"),
431		// followed by another word boundary.
432		return Pattern.compile("\\b" + nick + "\\p{Punct}?\\b",
433				Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE);
434	}
435
436	public void setOpenConversation(final Conversation conversation) {
437		this.mOpenConversation = conversation;
438	}
439
440	public void setIsInForeground(final boolean foreground) {
441		this.mIsInForeground = foreground;
442	}
443
444	private int getPixel(final int dp) {
445		final DisplayMetrics metrics = mXmppConnectionService.getResources()
446			.getDisplayMetrics();
447		return ((int) (dp * metrics.density));
448	}
449
450	private void markLastNotification() {
451		this.mLastNotification = SystemClock.elapsedRealtime();
452	}
453
454	private boolean inMiniGracePeriod(final Account account) {
455		final int miniGrace = account.getStatus() == Account.State.ONLINE ? Config.MINI_GRACE_PERIOD
456			: Config.MINI_GRACE_PERIOD * 2;
457		return SystemClock.elapsedRealtime() < (this.mLastNotification + miniGrace);
458	}
459
460	public Notification createForegroundNotification() {
461		final NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(mXmppConnectionService);
462
463		mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.conversations_foreground_service));
464		mBuilder.setContentText(mXmppConnectionService.getString(R.string.touch_to_open_conversations));
465		mBuilder.setContentIntent(createOpenConversationsIntent());
466		mBuilder.setWhen(0);
467		mBuilder.setPriority(NotificationCompat.PRIORITY_MIN);
468		final int cancelIcon;
469		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
470			mBuilder.setCategory(Notification.CATEGORY_SERVICE);
471			mBuilder.setSmallIcon(R.drawable.ic_import_export_white_48dp);
472			cancelIcon = R.drawable.ic_cancel_white_24dp;
473		} else {
474			mBuilder.setSmallIcon(R.drawable.ic_stat_communication_import_export);
475			cancelIcon = R.drawable.ic_action_cancel;
476		}
477		mBuilder.addAction(cancelIcon,
478				mXmppConnectionService.getString(R.string.disable_foreground_service),
479				createDisableForeground());
480		setNotificationColor(mBuilder);
481		return mBuilder.build();
482	}
483
484	private PendingIntent createOpenConversationsIntent() {
485		return PendingIntent.getActivity(mXmppConnectionService, 0, new Intent(mXmppConnectionService,ConversationActivity.class),0);
486	}
487
488	public void updateErrorNotification() {
489		final NotificationManager mNotificationManager = (NotificationManager) mXmppConnectionService.getSystemService(Context.NOTIFICATION_SERVICE);
490		final List<Account> errors = new ArrayList<>();
491		for (final Account account : mXmppConnectionService.getAccounts()) {
492			if (account.hasErrorStatus()) {
493				errors.add(account);
494			}
495		}
496		final NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(mXmppConnectionService);
497		if (errors.size() == 0) {
498			mNotificationManager.cancel(ERROR_NOTIFICATION_ID);
499			return;
500		} else if (errors.size() == 1) {
501			mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.problem_connecting_to_account));
502			mBuilder.setContentText(errors.get(0).getJid().toBareJid().toString());
503		} else {
504			mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.problem_connecting_to_accounts));
505			mBuilder.setContentText(mXmppConnectionService.getString(R.string.touch_to_fix));
506		}
507		mBuilder.addAction(R.drawable.ic_autorenew_white_24dp,
508				mXmppConnectionService.getString(R.string.try_again),
509				createTryAgainIntent());
510		if (errors.size() == 1) {
511			mBuilder.addAction(R.drawable.ic_block_white_24dp,
512					mXmppConnectionService.getString(R.string.disable_account),
513					createDisableAccountIntent(errors.get(0)));
514		}
515		mBuilder.setOngoing(true);
516		//mBuilder.setLights(0xffffffff, 2000, 4000);
517		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
518			mBuilder.setSmallIcon(R.drawable.ic_warning_white_36dp);
519		} else {
520			mBuilder.setSmallIcon(R.drawable.ic_stat_alert_warning);
521		}
522		final TaskStackBuilder stackBuilder = TaskStackBuilder.create(mXmppConnectionService);
523		stackBuilder.addParentStack(ConversationActivity.class);
524
525		final Intent manageAccountsIntent = new Intent(mXmppConnectionService,ManageAccountActivity.class);
526		stackBuilder.addNextIntent(manageAccountsIntent);
527
528		final PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0,PendingIntent.FLAG_UPDATE_CURRENT);
529
530		mBuilder.setContentIntent(resultPendingIntent);
531		mNotificationManager.notify(ERROR_NOTIFICATION_ID, mBuilder.build());
532	}
533}