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