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