XmppConnectionService.java

   1package eu.siacs.conversations.services;
   2
   3import android.annotation.SuppressLint;
   4import android.app.AlarmManager;
   5import android.app.PendingIntent;
   6import android.app.Service;
   7import android.content.Context;
   8import android.content.Intent;
   9import android.content.SharedPreferences;
  10import android.database.ContentObserver;
  11import android.graphics.Bitmap;
  12import android.net.ConnectivityManager;
  13import android.net.NetworkInfo;
  14import android.net.Uri;
  15import android.os.Binder;
  16import android.os.Bundle;
  17import android.os.FileObserver;
  18import android.os.IBinder;
  19import android.os.PowerManager;
  20import android.os.PowerManager.WakeLock;
  21import android.os.SystemClock;
  22import android.preference.PreferenceManager;
  23import android.provider.ContactsContract;
  24import android.util.Log;
  25import android.util.LruCache;
  26
  27import net.java.otr4j.OtrException;
  28import net.java.otr4j.session.Session;
  29import net.java.otr4j.session.SessionID;
  30import net.java.otr4j.session.SessionStatus;
  31
  32import org.openintents.openpgp.util.OpenPgpApi;
  33import org.openintents.openpgp.util.OpenPgpServiceConnection;
  34
  35import java.io.FileNotFoundException;
  36import java.io.IOException;
  37import java.io.OutputStream;
  38import java.security.SecureRandom;
  39import java.text.SimpleDateFormat;
  40import java.util.ArrayList;
  41import java.util.Collections;
  42import java.util.Comparator;
  43import java.util.Date;
  44import java.util.Hashtable;
  45import java.util.List;
  46import java.util.Locale;
  47import java.util.TimeZone;
  48import java.util.concurrent.CopyOnWriteArrayList;
  49
  50import de.duenndns.ssl.MemorizingTrustManager;
  51import eu.siacs.conversations.Config;
  52import eu.siacs.conversations.R;
  53import eu.siacs.conversations.crypto.PgpEngine;
  54import eu.siacs.conversations.entities.Account;
  55import eu.siacs.conversations.entities.Bookmark;
  56import eu.siacs.conversations.entities.Contact;
  57import eu.siacs.conversations.entities.Conversation;
  58import eu.siacs.conversations.entities.Downloadable;
  59import eu.siacs.conversations.entities.DownloadableFile;
  60import eu.siacs.conversations.entities.DownloadablePlaceholder;
  61import eu.siacs.conversations.entities.Message;
  62import eu.siacs.conversations.entities.MucOptions;
  63import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  64import eu.siacs.conversations.entities.Presences;
  65import eu.siacs.conversations.generator.IqGenerator;
  66import eu.siacs.conversations.generator.MessageGenerator;
  67import eu.siacs.conversations.generator.PresenceGenerator;
  68import eu.siacs.conversations.http.HttpConnectionManager;
  69import eu.siacs.conversations.parser.IqParser;
  70import eu.siacs.conversations.parser.MessageParser;
  71import eu.siacs.conversations.parser.PresenceParser;
  72import eu.siacs.conversations.persistance.DatabaseBackend;
  73import eu.siacs.conversations.persistance.FileBackend;
  74import eu.siacs.conversations.ui.UiCallback;
  75import eu.siacs.conversations.utils.CryptoHelper;
  76import eu.siacs.conversations.utils.ExceptionHelper;
  77import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
  78import eu.siacs.conversations.utils.PRNGFixes;
  79import eu.siacs.conversations.utils.PhoneHelper;
  80import eu.siacs.conversations.xml.Element;
  81import eu.siacs.conversations.xmpp.OnBindListener;
  82import eu.siacs.conversations.xmpp.OnContactStatusChanged;
  83import eu.siacs.conversations.xmpp.OnIqPacketReceived;
  84import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
  85import eu.siacs.conversations.xmpp.OnStatusChanged;
  86import eu.siacs.conversations.xmpp.XmppConnection;
  87import eu.siacs.conversations.xmpp.jid.InvalidJidException;
  88import eu.siacs.conversations.xmpp.jid.Jid;
  89import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  90import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
  91import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
  92import eu.siacs.conversations.xmpp.pep.Avatar;
  93import eu.siacs.conversations.xmpp.stanzas.IqPacket;
  94import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
  95import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
  96
  97public class XmppConnectionService extends Service {
  98
  99	public static String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 100	private static String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
 101	public static String ACTION_DISABLE_FOREGROUND = "disable_foreground";
 102	private ContentObserver contactObserver = new ContentObserver(null) {
 103		@Override
 104		public void onChange(boolean selfChange) {
 105			super.onChange(selfChange);
 106			Intent intent = new Intent(getApplicationContext(),
 107					XmppConnectionService.class);
 108			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 109			startService(intent);
 110		}
 111	};
 112	private final IBinder mBinder = new XmppConnectionBinder();
 113	public DatabaseBackend databaseBackend;
 114	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 115
 116		@Override
 117		public void onContactStatusChanged(Contact contact, boolean online) {
 118			Conversation conversation = find(getConversations(), contact);
 119			if (conversation != null) {
 120				if (online && contact.getPresences().size() > 1) {
 121					conversation.endOtrIfNeeded();
 122				} else {
 123					conversation.resetOtrSession();
 124				}
 125				if (online && (contact.getPresences().size() == 1)) {
 126					sendUnsendMessages(conversation);
 127				}
 128			}
 129		}
 130	};
 131	private FileBackend fileBackend = new FileBackend(this);
 132	private MemorizingTrustManager mMemorizingTrustManager;
 133	private NotificationService mNotificationService = new NotificationService(
 134			this);
 135	private MessageParser mMessageParser = new MessageParser(this);
 136	private PresenceParser mPresenceParser = new PresenceParser(this);
 137	private IqParser mIqParser = new IqParser(this);
 138	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 139	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 140	private List<Account> accounts;
 141	private final CopyOnWriteArrayList<Conversation> conversations = new CopyOnWriteArrayList<Conversation>();
 142	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 143			this);
 144	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 145			this);
 146	private AvatarService mAvatarService = new AvatarService(this);
 147	private OnConversationUpdate mOnConversationUpdate = null;
 148	private Integer convChangedListenerCount = 0;
 149	private OnAccountUpdate mOnAccountUpdate = null;
 150	private OnStatusChanged statusListener = new OnStatusChanged() {
 151
 152		@Override
 153		public void onStatusChanged(Account account) {
 154			XmppConnection connection = account.getXmppConnection();
 155			if (mOnAccountUpdate != null) {
 156				mOnAccountUpdate.onAccountUpdate();
 157			}
 158			if (account.getStatus() == Account.State.ONLINE) {
 159				for (Conversation conversation : account.pendingConferenceLeaves) {
 160					leaveMuc(conversation);
 161				}
 162				for (Conversation conversation : account.pendingConferenceJoins) {
 163					joinMuc(conversation);
 164				}
 165				mJingleConnectionManager.cancelInTransmission();
 166				List<Conversation> conversations = getConversations();
 167				for (Conversation conversation : conversations) {
 168					if (conversation.getAccount() == account) {
 169						conversation.startOtrIfNeeded();
 170						sendUnsendMessages(conversation);
 171					}
 172				}
 173				if (connection != null && connection.getFeatures().csi()) {
 174					if (checkListeners()) {
 175						Log.d(Config.LOGTAG, account.getJid().toBareJid()
 176								+ " sending csi//inactive");
 177						connection.sendInactive();
 178					} else {
 179						Log.d(Config.LOGTAG, account.getJid().toBareJid()
 180								+ " sending csi//active");
 181						connection.sendActive();
 182					}
 183				}
 184				syncDirtyContacts(account);
 185				scheduleWakeupCall(Config.PING_MAX_INTERVAL, true);
 186			} else if (account.getStatus() == Account.State.OFFLINE) {
 187				resetSendingToWaiting(account);
 188				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 189					int timeToReconnect = mRandom.nextInt(50) + 10;
 190					scheduleWakeupCall(timeToReconnect, false);
 191				}
 192			} else if (account.getStatus() == Account.State.REGISTRATION_SUCCESSFUL) {
 193				databaseBackend.updateAccount(account);
 194				reconnectAccount(account, true);
 195			} else if ((account.getStatus() != Account.State.CONNECTING)
 196					&& (account.getStatus() != Account.State.NO_INTERNET)) {
 197				if (connection != null) {
 198					int next = connection.getTimeToNextAttempt();
 199					Log.d(Config.LOGTAG, account.getJid().toBareJid()
 200							+ ": error connecting account. try again in "
 201							+ next + "s for the "
 202							+ (connection.getAttempt() + 1) + " time");
 203					scheduleWakeupCall((int) (next * 1.2), false);
 204				}
 205					}
 206			getNotificationService().updateErrorNotification();
 207		}
 208	};
 209	private Integer accountChangedListenerCount = 0;
 210	private OnRosterUpdate mOnRosterUpdate = null;
 211	private Integer rosterChangedListenerCount = 0;
 212	private SecureRandom mRandom;
 213	private FileObserver fileObserver = new FileObserver(
 214			FileBackend.getConversationsImageDirectory()) {
 215
 216		@Override
 217		public void onEvent(int event, String path) {
 218			if (event == FileObserver.DELETE) {
 219				markFileDeleted(path.split("\\.")[0]);
 220			}
 221		}
 222	};
 223	private OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 224
 225		@Override
 226		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 227			mJingleConnectionManager.deliverPacket(account, packet);
 228		}
 229	};
 230
 231	private OpenPgpServiceConnection pgpServiceConnection;
 232	private PgpEngine mPgpEngine = null;
 233	private Intent pingIntent;
 234	private PendingIntent pendingPingIntent = null;
 235	private WakeLock wakeLock;
 236	private PowerManager pm;
 237	private OnBindListener mOnBindListener = new OnBindListener() {
 238
 239		@Override
 240		public void onBind(final Account account) {
 241			account.getRoster().clearPresences();
 242			account.clearPresences(); // self presences
 243			account.pendingConferenceJoins.clear();
 244			account.pendingConferenceLeaves.clear();
 245			fetchRosterFromServer(account);
 246			fetchBookmarks(account);
 247			sendPresencePacket(account,
 248					mPresenceGenerator.sendPresence(account));
 249			connectMultiModeConversations(account);
 250			updateConversationUi();
 251		}
 252	};
 253
 254	private OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 255
 256		@Override
 257		public void onMessageAcknowledged(Account account, String uuid) {
 258			for (Conversation conversation : getConversations()) {
 259				if (conversation.getAccount() == account) {
 260					for (Message message : conversation.getMessages()) {
 261						if ((message.getStatus() == Message.STATUS_UNSEND || message
 262									.getStatus() == Message.STATUS_WAITING)
 263								&& message.getUuid().equals(uuid)) {
 264							markMessage(message, Message.STATUS_SEND);
 265							return;
 266								}
 267					}
 268				}
 269			}
 270		}
 271	};
 272	private LruCache<String, Bitmap> mBitmapCache;
 273	private OnRenameListener renameListener = null;
 274	private IqGenerator mIqGenerator = new IqGenerator(this);
 275
 276	public PgpEngine getPgpEngine() {
 277		if (pgpServiceConnection.isBound()) {
 278			if (this.mPgpEngine == null) {
 279				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 280							getApplicationContext(),
 281							pgpServiceConnection.getService()), this);
 282			}
 283			return mPgpEngine;
 284		} else {
 285			return null;
 286		}
 287
 288	}
 289
 290	public FileBackend getFileBackend() {
 291		return this.fileBackend;
 292	}
 293
 294	public AvatarService getAvatarService() {
 295		return this.mAvatarService;
 296	}
 297
 298	public void attachFileToConversation(Conversation conversation, final Uri uri, final UiCallback<Message> callback) {
 299		final Message message;
 300		if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 301			message = new Message(conversation, "",
 302					Message.ENCRYPTION_DECRYPTED);
 303		} else {
 304			message = new Message(conversation, "",
 305					conversation.getNextEncryption(forceEncryption()));
 306		}
 307		message.setCounterpart(conversation.getNextCounterpart());
 308		message.setType(Message.TYPE_FILE);
 309		message.setStatus(Message.STATUS_OFFERED);
 310		String path = getFileBackend().getOriginalPath(uri);
 311		if (path!=null) {
 312			message.setRelativeFilePath(path);
 313			getFileBackend().updateFileParams(message);
 314			if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 315				getPgpEngine().encrypt(message, callback);
 316			} else {
 317				callback.success(message);
 318			}
 319		} else {
 320			new Thread(new Runnable() {
 321				@Override
 322				public void run() {
 323					try {
 324						getFileBackend().copyFileToPrivateStorage(message, uri);
 325						getFileBackend().updateFileParams(message);
 326						if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 327							getPgpEngine().encrypt(message, callback);
 328						} else {
 329							callback.success(message);
 330						}
 331					} catch (FileBackend.FileCopyException e) {
 332						callback.error(e.getResId(),message);
 333					}
 334				}
 335			}).start();
 336
 337		}
 338	}
 339
 340	public void attachImageToConversation(final Conversation conversation,
 341			final Uri uri, final UiCallback<Message> callback) {
 342		final Message message;
 343		if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 344			message = new Message(conversation, "",
 345					Message.ENCRYPTION_DECRYPTED);
 346		} else {
 347			message = new Message(conversation, "",
 348					conversation.getNextEncryption(forceEncryption()));
 349		}
 350		message.setCounterpart(conversation.getNextCounterpart());
 351		message.setType(Message.TYPE_IMAGE);
 352		message.setStatus(Message.STATUS_OFFERED);
 353		new Thread(new Runnable() {
 354
 355			@Override
 356			public void run() {
 357				try {
 358					DownloadableFile file = getFileBackend().copyImageToPrivateStorage(message, uri);
 359					if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 360						getPgpEngine().encrypt(message, callback);
 361					} else {
 362						callback.success(message);
 363					}
 364				} catch (FileBackend.FileCopyException e) {
 365					callback.error(e.getResId(), message);
 366				}
 367			}
 368		}).start();
 369	}
 370
 371	public Conversation find(Bookmark bookmark) {
 372		return find(bookmark.getAccount(), bookmark.getJid());
 373	}
 374
 375	public Conversation find(final Account account, final Jid jid) {
 376		return find(getConversations(), account, jid);
 377	}
 378
 379	@Override
 380	public int onStartCommand(Intent intent, int flags, int startId) {
 381		if (intent != null && intent.getAction() != null) {
 382			if (intent.getAction().equals(ACTION_MERGE_PHONE_CONTACTS)) {
 383				mergePhoneContactsWithRoster();
 384				return START_STICKY;
 385			} else if (intent.getAction().equals(Intent.ACTION_SHUTDOWN)) {
 386				logoutAndSave();
 387				return START_NOT_STICKY;
 388			} else if (intent.getAction().equals(ACTION_CLEAR_NOTIFICATION)) {
 389				mNotificationService.clear();
 390			} else if (intent.getAction().equals(ACTION_DISABLE_FOREGROUND)) {
 391				getPreferences().edit().putBoolean("keep_foreground_service",false).commit();
 392				toggleForegroundService();
 393			}
 394		}
 395		this.wakeLock.acquire();
 396
 397		for (Account account : accounts) {
 398			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 399				if (!hasInternetConnection()) {
 400					account.setStatus(Account.State.NO_INTERNET);
 401					if (statusListener != null) {
 402						statusListener.onStatusChanged(account);
 403					}
 404				} else {
 405					if (account.getStatus() == Account.State.NO_INTERNET) {
 406						account.setStatus(Account.State.OFFLINE);
 407						if (statusListener != null) {
 408							statusListener.onStatusChanged(account);
 409						}
 410					}
 411					if (account.getStatus() == Account.State.ONLINE) {
 412						long lastReceived = account.getXmppConnection()
 413							.getLastPacketReceived();
 414						long lastSent = account.getXmppConnection()
 415							.getLastPingSent();
 416						if (lastSent - lastReceived >= Config.PING_TIMEOUT * 1000) {
 417							Log.d(Config.LOGTAG, account.getJid()
 418									+ ": ping timeout");
 419							this.reconnectAccount(account, true);
 420						} else if (SystemClock.elapsedRealtime() - lastReceived >= Config.PING_MIN_INTERVAL * 1000) {
 421							account.getXmppConnection().sendPing();
 422							this.scheduleWakeupCall(2, false);
 423						}
 424					} else if (account.getStatus() == Account.State.OFFLINE) {
 425						if (account.getXmppConnection() == null) {
 426							account.setXmppConnection(this
 427									.createConnection(account));
 428						}
 429						new Thread(account.getXmppConnection()).start();
 430					} else if ((account.getStatus() == Account.State.CONNECTING)
 431							&& ((SystemClock.elapsedRealtime() - account
 432									.getXmppConnection().getLastConnect()) / 1000 >= Config.CONNECT_TIMEOUT)) {
 433						Log.d(Config.LOGTAG, account.getJid()
 434								+ ": time out during connect reconnecting");
 435						reconnectAccount(account, true);
 436					} else {
 437						if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 438							reconnectAccount(account, true);
 439						}
 440					}
 441					// in any case. reschedule wakup call
 442					this.scheduleWakeupCall(Config.PING_MAX_INTERVAL, true);
 443				}
 444				if (mOnAccountUpdate != null) {
 445					mOnAccountUpdate.onAccountUpdate();
 446				}
 447			}
 448		}
 449		/*PowerManager pm = (PowerManager) this.getSystemService(Context.POWER_SERVICE);
 450			if (!pm.isScreenOn()) {
 451			removeStaleListeners();
 452			}*/
 453		if (wakeLock.isHeld()) {
 454			try {
 455				wakeLock.release();
 456			} catch (final RuntimeException ignored) {
 457			}
 458		}
 459		return START_STICKY;
 460	}
 461
 462	public boolean hasInternetConnection() {
 463		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 464			.getSystemService(Context.CONNECTIVITY_SERVICE);
 465		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 466		return activeNetwork != null && activeNetwork.isConnected();
 467	}
 468
 469	@SuppressLint("TrulyRandom")
 470	@Override
 471	public void onCreate() {
 472		ExceptionHelper.init(getApplicationContext());
 473		PRNGFixes.apply();
 474		this.mRandom = new SecureRandom();
 475		this.mMemorizingTrustManager = new MemorizingTrustManager(
 476				getApplicationContext());
 477
 478		int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
 479		int cacheSize = maxMemory / 8;
 480		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
 481			@Override
 482			protected int sizeOf(String key, Bitmap bitmap) {
 483				return bitmap.getByteCount() / 1024;
 484			}
 485		};
 486
 487		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 488		this.accounts = databaseBackend.getAccounts();
 489
 490		for (Account account : this.accounts) {
 491			account.initOtrEngine(this);
 492			this.databaseBackend.readRoster(account.getRoster());
 493		}
 494		initConversations();
 495		this.mergePhoneContactsWithRoster();
 496
 497		getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 498		this.fileObserver.startWatching();
 499		this.pgpServiceConnection = new OpenPgpServiceConnection(getApplicationContext(), "org.sufficientlysecure.keychain");
 500		this.pgpServiceConnection.bindToService();
 501
 502		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 503		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,"XmppConnectionService");
 504		toggleForegroundService();
 505	}
 506
 507	public void toggleForegroundService() {
 508		if (getPreferences().getBoolean("keep_foreground_service",false)) {
 509			startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, this.mNotificationService.createForegroundNotification());
 510		} else {
 511			stopForeground(true);
 512		}
 513	}
 514
 515	@Override
 516	public void onTaskRemoved(Intent rootIntent) {
 517		super.onTaskRemoved(rootIntent);
 518		if (!getPreferences().getBoolean("keep_foreground_service",false)) {
 519			this.logoutAndSave();
 520		}
 521	}
 522
 523	private void logoutAndSave() {
 524		for (Account account : accounts) {
 525			databaseBackend.writeRoster(account.getRoster());
 526			if (account.getXmppConnection() != null) {
 527				disconnect(account, false);
 528			}
 529		}
 530		Context context = getApplicationContext();
 531		AlarmManager alarmManager = (AlarmManager) context
 532			.getSystemService(Context.ALARM_SERVICE);
 533		Intent intent = new Intent(context, EventReceiver.class);
 534		alarmManager.cancel(PendingIntent.getBroadcast(context, 0, intent, 0));
 535		Log.d(Config.LOGTAG, "good bye");
 536		stopSelf();
 537	}
 538
 539	protected void scheduleWakeupCall(int seconds, boolean ping) {
 540		long timeToWake = SystemClock.elapsedRealtime() + seconds * 1000;
 541		Context context = getApplicationContext();
 542		AlarmManager alarmManager = (AlarmManager) context
 543			.getSystemService(Context.ALARM_SERVICE);
 544
 545		if (ping) {
 546			if (this.pingIntent == null) {
 547				this.pingIntent = new Intent(context, EventReceiver.class);
 548				this.pingIntent.setAction("ping");
 549				this.pingIntent.putExtra("time", timeToWake);
 550				this.pendingPingIntent = PendingIntent.getBroadcast(context, 0,
 551						this.pingIntent, 0);
 552				alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 553						timeToWake, pendingPingIntent);
 554			} else {
 555				long scheduledTime = this.pingIntent.getLongExtra("time", 0);
 556				if (scheduledTime < SystemClock.elapsedRealtime()
 557						|| (scheduledTime > timeToWake)) {
 558					this.pingIntent.putExtra("time", timeToWake);
 559					alarmManager.cancel(this.pendingPingIntent);
 560					this.pendingPingIntent = PendingIntent.getBroadcast(
 561							context, 0, this.pingIntent, 0);
 562					alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
 563							timeToWake, pendingPingIntent);
 564						}
 565			}
 566		} else {
 567			Intent intent = new Intent(context, EventReceiver.class);
 568			intent.setAction("ping_check");
 569			PendingIntent alarmIntent = PendingIntent.getBroadcast(context, 0,
 570					intent, 0);
 571			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake,
 572					alarmIntent);
 573		}
 574
 575	}
 576
 577	public XmppConnection createConnection(Account account) {
 578		SharedPreferences sharedPref = getPreferences();
 579		account.setResource(sharedPref.getString("resource", "mobile")
 580				.toLowerCase(Locale.getDefault()));
 581		XmppConnection connection = new XmppConnection(account, this);
 582		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
 583		connection.setOnStatusChangedListener(this.statusListener);
 584		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
 585		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
 586		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 587		connection.setOnBindListener(this.mOnBindListener);
 588		connection
 589			.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
 590		return connection;
 591	}
 592
 593	public void sendMessage(Message message) {
 594		Account account = message.getConversation().getAccount();
 595		account.deactivateGracePeriod();
 596		Conversation conv = message.getConversation();
 597		MessagePacket packet = null;
 598		boolean saveInDb = true;
 599		boolean send = false;
 600		if (account.getStatus() == Account.State.ONLINE
 601				&& account.getXmppConnection() != null) {
 602			if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) {
 603				if (message.getCounterpart() != null) {
 604					if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 605						if (!conv.hasValidOtrSession()) {
 606							conv.startOtrSession(message.getCounterpart().getResourcepart(),true);
 607							message.setStatus(Message.STATUS_WAITING);
 608						} else if (conv.hasValidOtrSession()
 609								&& conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 610							mJingleConnectionManager
 611								.createNewConnection(message);
 612								}
 613					} else {
 614						mJingleConnectionManager.createNewConnection(message);
 615					}
 616				} else {
 617					if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 618						conv.startOtrIfNeeded();
 619					}
 620					message.setStatus(Message.STATUS_WAITING);
 621				}
 622			} else {
 623				if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 624					if (!conv.hasValidOtrSession() && (message.getCounterpart() != null)) {
 625						conv.startOtrSession(message.getCounterpart().getResourcepart(), true);
 626						message.setStatus(Message.STATUS_WAITING);
 627					} else if (conv.hasValidOtrSession()) {
 628						if (conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 629							packet = mMessageGenerator.generateOtrChat(message);
 630							send = true;
 631						} else {
 632							message.setStatus(Message.STATUS_WAITING);
 633							conv.startOtrIfNeeded();
 634						}
 635					} else {
 636						message.setStatus(Message.STATUS_WAITING);
 637					}
 638				} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 639					message.getConversation().endOtrIfNeeded();
 640					failWaitingOtrMessages(message.getConversation());
 641					packet = mMessageGenerator.generatePgpChat(message);
 642					send = true;
 643				} else {
 644					message.getConversation().endOtrIfNeeded();
 645					failWaitingOtrMessages(message.getConversation());
 646					packet = mMessageGenerator.generateChat(message);
 647					send = true;
 648				}
 649			}
 650			if (!account.getXmppConnection().getFeatures().sm()
 651					&& conv.getMode() != Conversation.MODE_MULTI) {
 652				message.setStatus(Message.STATUS_SEND);
 653					}
 654		} else {
 655			message.setStatus(Message.STATUS_WAITING);
 656			if (message.getType() == Message.TYPE_TEXT) {
 657				if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 658					String pgpBody = message.getEncryptedBody();
 659					String decryptedBody = message.getBody();
 660					message.setBody(pgpBody);
 661					message.setEncryption(Message.ENCRYPTION_PGP);
 662					databaseBackend.createMessage(message);
 663					saveInDb = false;
 664					message.setBody(decryptedBody);
 665					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 666				} else if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 667					if (!conv.hasValidOtrSession()
 668							&& message.getCounterpart() != null) {
 669						conv.startOtrSession(message.getCounterpart().getResourcepart(), false);
 670							}
 671				}
 672			}
 673
 674		}
 675		conv.add(message);
 676		if (saveInDb) {
 677			if (message.getEncryption() == Message.ENCRYPTION_NONE
 678					|| saveEncryptedMessages()) {
 679				databaseBackend.createMessage(message);
 680					}
 681		}
 682		if ((send) && (packet != null)) {
 683			sendMessagePacket(account, packet);
 684		}
 685		updateConversationUi();
 686	}
 687
 688	private void sendUnsendMessages(Conversation conversation) {
 689		for (int i = 0; i < conversation.getMessages().size(); ++i) {
 690			int status = conversation.getMessages().get(i).getStatus();
 691			if (status == Message.STATUS_WAITING) {
 692				resendMessage(conversation.getMessages().get(i));
 693			}
 694		}
 695	}
 696
 697	private void resendMessage(Message message) {
 698		Account account = message.getConversation().getAccount();
 699		MessagePacket packet = null;
 700		if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 701			Presences presences = message.getConversation().getContact()
 702				.getPresences();
 703			if (!message.getConversation().hasValidOtrSession()) {
 704				if ((message.getCounterpart() != null)
 705						&& (presences.has(message.getCounterpart().getResourcepart()))) {
 706					message.getConversation().startOtrSession(message.getCounterpart().getResourcepart(), true);
 707				} else {
 708					if (presences.size() == 1) {
 709						String presence = presences.asStringArray()[0];
 710						message.getConversation().startOtrSession(presence, true);
 711					}
 712				}
 713			} else {
 714				if (message.getConversation().getOtrSession()
 715						.getSessionStatus() == SessionStatus.ENCRYPTED) {
 716					try {
 717						message.setCounterpart(Jid.fromSessionID(message.getConversation().getOtrSession().getSessionID()));
 718						if (message.getType() == Message.TYPE_TEXT) {
 719							packet = mMessageGenerator.generateOtrChat(message,
 720									true);
 721						} else if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) {
 722							mJingleConnectionManager.createNewConnection(message);
 723						}
 724					} catch (InvalidJidException e) {
 725
 726					}
 727						}
 728			}
 729		} else if (message.getType() == Message.TYPE_TEXT) {
 730			if (message.getEncryption() == Message.ENCRYPTION_NONE) {
 731				packet = mMessageGenerator.generateChat(message, true);
 732			} else if ((message.getEncryption() == Message.ENCRYPTION_DECRYPTED)
 733					|| (message.getEncryption() == Message.ENCRYPTION_PGP)) {
 734				packet = mMessageGenerator.generatePgpChat(message, true);
 735					}
 736		} else if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) {
 737			Contact contact = message.getConversation().getContact();
 738			Presences presences = contact.getPresences();
 739			if ((message.getCounterpart() != null)
 740					&& (presences.has(message.getCounterpart().getResourcepart()))) {
 741				markMessage(message, Message.STATUS_OFFERED);
 742				mJingleConnectionManager.createNewConnection(message);
 743			} else {
 744				if (presences.size() == 1) {
 745					String presence = presences.asStringArray()[0];
 746					try {
 747						message.setCounterpart(Jid.fromParts(contact.getJid().getLocalpart(), contact.getJid().getDomainpart(), presence));
 748					} catch (InvalidJidException e) {
 749						return;
 750					}
 751					markMessage(message, Message.STATUS_OFFERED);
 752					mJingleConnectionManager.createNewConnection(message);
 753				}
 754			}
 755		}
 756		if (packet != null) {
 757			if (!account.getXmppConnection().getFeatures().sm()
 758					&& message.getConversation().getMode() != Conversation.MODE_MULTI) {
 759				markMessage(message, Message.STATUS_SEND);
 760			} else {
 761				markMessage(message, Message.STATUS_UNSEND);
 762			}
 763			sendMessagePacket(account, packet);
 764		}
 765	}
 766
 767	public void fetchRosterFromServer(Account account) {
 768		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 769		if (!"".equals(account.getRosterVersion())) {
 770			Log.d(Config.LOGTAG, account.getJid().toBareJid()
 771					+ ": fetching roster version " + account.getRosterVersion());
 772		} else {
 773			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching roster");
 774		}
 775		iqPacket.query("jabber:iq:roster").setAttribute("ver",
 776				account.getRosterVersion());
 777		account.getXmppConnection().sendIqPacket(iqPacket,
 778				new OnIqPacketReceived() {
 779
 780					@Override
 781					public void onIqPacketReceived(final Account account,
 782							IqPacket packet) {
 783						Element query = packet.findChild("query");
 784						if (query != null) {
 785							account.getRoster().markAllAsNotInRoster();
 786							mIqParser.rosterItems(account, query);
 787						}
 788					}
 789				});
 790	}
 791
 792	public void fetchBookmarks(Account account) {
 793		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_GET);
 794		Element query = iqPacket.query("jabber:iq:private");
 795		query.addChild("storage", "storage:bookmarks");
 796		OnIqPacketReceived callback = new OnIqPacketReceived() {
 797
 798			@Override
 799			public void onIqPacketReceived(Account account, IqPacket packet) {
 800				Element query = packet.query();
 801				List<Bookmark> bookmarks = new CopyOnWriteArrayList<>();
 802				Element storage = query.findChild("storage",
 803						"storage:bookmarks");
 804				if (storage != null) {
 805					for (Element item : storage.getChildren()) {
 806						if (item.getName().equals("conference")) {
 807							Bookmark bookmark = Bookmark.parse(item, account);
 808							bookmarks.add(bookmark);
 809							Conversation conversation = find(bookmark);
 810							if (conversation != null) {
 811								conversation.setBookmark(bookmark);
 812							} else {
 813								if (bookmark.autojoin()) {
 814									conversation = findOrCreateConversation(
 815											account, bookmark.getJid(), true);
 816									conversation.setBookmark(bookmark);
 817									joinMuc(conversation);
 818								}
 819							}
 820						}
 821					}
 822				}
 823				account.setBookmarks(bookmarks);
 824			}
 825		};
 826		sendIqPacket(account, iqPacket, callback);
 827
 828	}
 829
 830	public void pushBookmarks(Account account) {
 831		IqPacket iqPacket = new IqPacket(IqPacket.TYPE_SET);
 832		Element query = iqPacket.query("jabber:iq:private");
 833		Element storage = query.addChild("storage", "storage:bookmarks");
 834		for (Bookmark bookmark : account.getBookmarks()) {
 835			storage.addChild(bookmark);
 836		}
 837		sendIqPacket(account, iqPacket, null);
 838	}
 839
 840	private void mergePhoneContactsWithRoster() {
 841		PhoneHelper.loadPhoneContacts(getApplicationContext(),
 842				new OnPhoneContactsLoadedListener() {
 843					@Override
 844					public void onPhoneContactsLoaded(List<Bundle> phoneContacts) {
 845						for (Account account : accounts) {
 846							account.getRoster().clearSystemAccounts();
 847						}
 848						for (Bundle phoneContact : phoneContacts) {
 849							for (Account account : accounts) {
 850								Jid jid;
 851								try {
 852									jid = Jid.fromString(phoneContact.getString("jid"));
 853								} catch (final InvalidJidException e) {
 854									// TODO: Warn if contact import fails here?
 855									break;
 856								}
 857								final Contact contact = account.getRoster()
 858									.getContact(jid);
 859								String systemAccount = phoneContact
 860									.getInt("phoneid")
 861									+ "#"
 862									+ phoneContact.getString("lookup");
 863								contact.setSystemAccount(systemAccount);
 864								contact.setPhotoUri(phoneContact
 865										.getString("photouri"));
 866								contact.setSystemName(phoneContact
 867										.getString("displayname"));
 868								getAvatarService().clear(contact);
 869							}
 870						}
 871					}
 872				});
 873	}
 874
 875	private void initConversations() {
 876		synchronized (this.conversations) {
 877			Hashtable<String, Account> accountLookupTable = new Hashtable<>();
 878			for (Account account : this.accounts) {
 879				accountLookupTable.put(account.getUuid(), account);
 880			}
 881			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
 882			for (Conversation conv : this.conversations) {
 883				Account account = accountLookupTable.get(conv.getAccountUuid());
 884				conv.setAccount(account);
 885				conv.addAll(0, databaseBackend.getMessages(conv, 50));
 886				checkDeletedFiles(conv);
 887			}
 888		}
 889	}
 890
 891	public List<Conversation> getConversations() {
 892		return this.conversations;
 893	}
 894
 895	private void checkDeletedFiles(Conversation conversation) {
 896		for (Message message : conversation.getMessages()) {
 897			if ((message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE)
 898					&& message.getEncryption() != Message.ENCRYPTION_PGP) {
 899				if (!getFileBackend().isFileAvailable(message)) {
 900					message.setDownloadable(new DownloadablePlaceholder(Downloadable.STATUS_DELETED));
 901				}
 902					}
 903		}
 904	}
 905
 906	private void markFileDeleted(String uuid) {
 907		for (Conversation conversation : getConversations()) {
 908			for (Message message : conversation.getMessages()) {
 909				if (message.getType() == Message.TYPE_IMAGE
 910						&& message.getEncryption() != Message.ENCRYPTION_PGP
 911						&& message.getUuid().equals(uuid)) {
 912					if (!getFileBackend().isFileAvailable(message)) {
 913						message.setDownloadable(new DownloadablePlaceholder(Downloadable.STATUS_DELETED));
 914						updateConversationUi();
 915					}
 916					return;
 917						}
 918			}
 919		}
 920	}
 921
 922	public void populateWithOrderedConversations(final List<Conversation> list) {
 923		populateWithOrderedConversations(list, true);
 924	}
 925
 926	public void populateWithOrderedConversations(final List<Conversation> list, boolean includeConferences) {
 927		list.clear();
 928		if (includeConferences) {
 929			list.addAll(getConversations());
 930		} else {
 931			for (Conversation conversation : getConversations()) {
 932				if (conversation.getMode() == Conversation.MODE_SINGLE) {
 933					list.add(conversation);
 934				}
 935			}
 936		}
 937		Collections.sort(list, new Comparator<Conversation>() {
 938			@Override
 939			public int compare(Conversation lhs, Conversation rhs) {
 940				Message left = lhs.getLatestMessage();
 941				Message right = rhs.getLatestMessage();
 942				if (left.getTimeSent() > right.getTimeSent()) {
 943					return -1;
 944				} else if (left.getTimeSent() < right.getTimeSent()) {
 945					return 1;
 946				} else {
 947					return 0;
 948				}
 949			}
 950		});
 951	}
 952
 953	public int loadMoreMessages(Conversation conversation, long timestamp) {
 954		List<Message> messages = databaseBackend.getMessages(conversation, 50,
 955				timestamp);
 956		for (Message message : messages) {
 957			message.setConversation(conversation);
 958		}
 959		conversation.addAll(0, messages);
 960		return messages.size();
 961	}
 962
 963	public List<Account> getAccounts() {
 964		return this.accounts;
 965	}
 966
 967	public Conversation find(List<Conversation> haystack, Contact contact) {
 968		for (Conversation conversation : haystack) {
 969			if (conversation.getContact() == contact) {
 970				return conversation;
 971			}
 972		}
 973		return null;
 974	}
 975
 976	public Conversation find(final List<Conversation> haystack,
 977			final Account account,
 978			final Jid jid) {
 979		for (Conversation conversation : haystack) {
 980			if ((account == null || conversation.getAccount() == account)
 981					&& (conversation.getContactJid().toBareJid().equals(jid.toBareJid()))) {
 982				return conversation;
 983					}
 984		}
 985		return null;
 986	}
 987
 988	public Conversation findOrCreateConversation(final Account account, final Jid jid,
 989			final boolean muc) {
 990		synchronized (this.conversations) {
 991			Conversation conversation = find(account, jid);
 992			if (conversation != null) {
 993				return conversation;
 994			}
 995			conversation = databaseBackend.findConversation(account, jid);
 996			if (conversation != null) {
 997				conversation.setStatus(Conversation.STATUS_AVAILABLE);
 998				conversation.setAccount(account);
 999				if (muc) {
1000					conversation.setMode(Conversation.MODE_MULTI);
1001				} else {
1002					conversation.setMode(Conversation.MODE_SINGLE);
1003				}
1004				conversation.addAll(0, databaseBackend.getMessages(conversation, 50));
1005				this.databaseBackend.updateConversation(conversation);
1006			} else {
1007				String conversationName;
1008				Contact contact = account.getRoster().getContact(jid);
1009				if (contact != null) {
1010					conversationName = contact.getDisplayName();
1011				} else {
1012					conversationName = jid.getLocalpart();
1013				}
1014				if (muc) {
1015					conversation = new Conversation(conversationName, account, jid,
1016							Conversation.MODE_MULTI);
1017				} else {
1018					conversation = new Conversation(conversationName, account, jid,
1019							Conversation.MODE_SINGLE);
1020				}
1021				this.databaseBackend.createConversation(conversation);
1022			}
1023			this.conversations.add(conversation);
1024			updateConversationUi();
1025			return conversation;
1026		}
1027	}
1028
1029	public void archiveConversation(Conversation conversation) {
1030		synchronized (this.conversations) {
1031			if (conversation.getMode() == Conversation.MODE_MULTI) {
1032				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1033					Bookmark bookmark = conversation.getBookmark();
1034					if (bookmark != null && bookmark.autojoin()) {
1035						bookmark.setAutojoin(false);
1036						pushBookmarks(bookmark.getAccount());
1037					}
1038				}
1039				leaveMuc(conversation);
1040			} else {
1041				conversation.endOtrIfNeeded();
1042			}
1043			this.databaseBackend.updateConversation(conversation);
1044			this.conversations.remove(conversation);
1045			updateConversationUi();
1046		}
1047	}
1048
1049	public void clearConversationHistory(Conversation conversation) {
1050		this.databaseBackend.deleteMessagesInConversation(conversation);
1051		conversation.getMessages().clear();
1052		updateConversationUi();
1053	}
1054
1055	public int getConversationCount() {
1056		return this.databaseBackend.getConversationCount();
1057	}
1058
1059	public void createAccount(Account account) {
1060		account.initOtrEngine(this);
1061		databaseBackend.createAccount(account);
1062		this.accounts.add(account);
1063		this.reconnectAccount(account, false);
1064		updateAccountUi();
1065	}
1066
1067	public void updateAccount(Account account) {
1068		this.statusListener.onStatusChanged(account);
1069		databaseBackend.updateAccount(account);
1070		reconnectAccount(account, false);
1071		updateAccountUi();
1072		getNotificationService().updateErrorNotification();
1073	}
1074
1075	public void deleteAccount(Account account) {
1076		synchronized (this.conversations) {
1077			for (Conversation conversation : conversations) {
1078				if (conversation.getAccount() == account) {
1079					if (conversation.getMode() == Conversation.MODE_MULTI) {
1080						leaveMuc(conversation);
1081					} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
1082						conversation.endOtrIfNeeded();
1083					}
1084					conversations.remove(conversation);
1085				}
1086			}
1087			if (account.getXmppConnection() != null) {
1088				this.disconnect(account, true);
1089			}
1090			databaseBackend.deleteAccount(account);
1091			this.accounts.remove(account);
1092			updateAccountUi();
1093			getNotificationService().updateErrorNotification();
1094		}
1095	}
1096
1097	private void removeStaleListeners() {
1098		boolean removedListener = false;
1099		synchronized (this.convChangedListenerCount) {
1100			if (this.mOnConversationUpdate != null) {
1101				this.mOnConversationUpdate = null;
1102				this.convChangedListenerCount = 0;
1103				this.mNotificationService.setIsInForeground(false);
1104				removedListener = true;
1105			}
1106		}
1107		synchronized (this.accountChangedListenerCount) {
1108			if (this.mOnAccountUpdate != null) {
1109				this.mOnAccountUpdate = null;
1110				this.accountChangedListenerCount = 0;
1111				removedListener = true;
1112			}
1113		}
1114		synchronized (this.rosterChangedListenerCount) {
1115			if (this.mOnRosterUpdate != null) {
1116				this.mOnRosterUpdate = null;
1117				this.rosterChangedListenerCount = 0;
1118				removedListener = true;
1119			}
1120		}
1121		if (removedListener) {
1122			final String msg = "removed stale listeners";
1123			Log.d(Config.LOGTAG, msg);
1124			checkListeners();
1125			try {
1126				OutputStream os = openFileOutput("stacktrace.txt", MODE_PRIVATE);
1127				os.write(msg.getBytes());
1128				os.flush();
1129				os.close();
1130			} catch (final FileNotFoundException ignored) {
1131
1132			} catch (final IOException ignored) {
1133			}
1134		}
1135	}
1136
1137	public void setOnConversationListChangedListener(
1138			OnConversationUpdate listener) {
1139		/*if (!isScreenOn()) {
1140			Log.d(Config.LOGTAG,
1141			"ignoring setOnConversationListChangedListener");
1142			return;
1143			}*/
1144		synchronized (this.convChangedListenerCount) {
1145			if (checkListeners()) {
1146				switchToForeground();
1147			}
1148			this.mOnConversationUpdate = listener;
1149			this.mNotificationService.setIsInForeground(true);
1150			this.convChangedListenerCount++;
1151		}
1152			}
1153
1154	public void removeOnConversationListChangedListener() {
1155		synchronized (this.convChangedListenerCount) {
1156			this.convChangedListenerCount--;
1157			if (this.convChangedListenerCount <= 0) {
1158				this.convChangedListenerCount = 0;
1159				this.mOnConversationUpdate = null;
1160				this.mNotificationService.setIsInForeground(false);
1161				if (checkListeners()) {
1162					switchToBackground();
1163				}
1164			}
1165		}
1166	}
1167
1168	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
1169		/*if (!isScreenOn()) {
1170			Log.d(Config.LOGTAG, "ignoring setOnAccountListChangedListener");
1171			return;
1172			}*/
1173		synchronized (this.accountChangedListenerCount) {
1174			if (checkListeners()) {
1175				switchToForeground();
1176			}
1177			this.mOnAccountUpdate = listener;
1178			this.accountChangedListenerCount++;
1179		}
1180	}
1181
1182	public void removeOnAccountListChangedListener() {
1183		synchronized (this.accountChangedListenerCount) {
1184			this.accountChangedListenerCount--;
1185			if (this.accountChangedListenerCount <= 0) {
1186				this.mOnAccountUpdate = null;
1187				this.accountChangedListenerCount = 0;
1188				if (checkListeners()) {
1189					switchToBackground();
1190				}
1191			}
1192		}
1193	}
1194
1195	public void setOnRosterUpdateListener(OnRosterUpdate listener) {
1196		/*if (!isScreenOn()) {
1197			Log.d(Config.LOGTAG, "ignoring setOnRosterUpdateListener");
1198			return;
1199			}*/
1200		synchronized (this.rosterChangedListenerCount) {
1201			if (checkListeners()) {
1202				switchToForeground();
1203			}
1204			this.mOnRosterUpdate = listener;
1205			this.rosterChangedListenerCount++;
1206		}
1207	}
1208
1209	public void removeOnRosterUpdateListener() {
1210		synchronized (this.rosterChangedListenerCount) {
1211			this.rosterChangedListenerCount--;
1212			if (this.rosterChangedListenerCount <= 0) {
1213				this.rosterChangedListenerCount = 0;
1214				this.mOnRosterUpdate = null;
1215				if (checkListeners()) {
1216					switchToBackground();
1217				}
1218			}
1219		}
1220	}
1221
1222	private boolean checkListeners() {
1223		return (this.mOnAccountUpdate == null
1224				&& this.mOnConversationUpdate == null && this.mOnRosterUpdate == null);
1225	}
1226
1227	private void switchToForeground() {
1228		for (Account account : getAccounts()) {
1229			if (account.getStatus() == Account.State.ONLINE) {
1230				XmppConnection connection = account.getXmppConnection();
1231				if (connection != null && connection.getFeatures().csi()) {
1232					connection.sendActive();
1233				}
1234			}
1235		}
1236		Log.d(Config.LOGTAG, "app switched into foreground");
1237	}
1238
1239	private void switchToBackground() {
1240		for (Account account : getAccounts()) {
1241			if (account.getStatus() == Account.State.ONLINE) {
1242				XmppConnection connection = account.getXmppConnection();
1243				if (connection != null && connection.getFeatures().csi()) {
1244					connection.sendInactive();
1245				}
1246			}
1247		}
1248		this.mNotificationService.setIsInForeground(false);
1249		Log.d(Config.LOGTAG, "app switched into background");
1250	}
1251
1252	private boolean isScreenOn() {
1253		PowerManager pm = (PowerManager) this
1254			.getSystemService(Context.POWER_SERVICE);
1255		return pm.isScreenOn();
1256	}
1257
1258	public void connectMultiModeConversations(Account account) {
1259		List<Conversation> conversations = getConversations();
1260		for (Conversation conversation : conversations) {
1261			if ((conversation.getMode() == Conversation.MODE_MULTI)
1262					&& (conversation.getAccount() == account)) {
1263				joinMuc(conversation);
1264					}
1265		}
1266	}
1267
1268	public void joinMuc(Conversation conversation) {
1269		Account account = conversation.getAccount();
1270		account.pendingConferenceJoins.remove(conversation);
1271		account.pendingConferenceLeaves.remove(conversation);
1272		if (account.getStatus() == Account.State.ONLINE) {
1273			Log.d(Config.LOGTAG,
1274					"joining conversation " + conversation.getContactJid());
1275			String nick = conversation.getMucOptions().getProposedNick();
1276			conversation.getMucOptions().setJoinNick(nick);
1277			PresencePacket packet = new PresencePacket();
1278			final Jid joinJid = conversation.getMucOptions().getJoinJid();
1279			packet.setTo(conversation.getMucOptions().getJoinJid());
1280			Element x = new Element("x");
1281			x.setAttribute("xmlns", "http://jabber.org/protocol/muc");
1282			if (conversation.getMucOptions().getPassword() != null) {
1283				Element password = x.addChild("password");
1284				password.setContent(conversation.getMucOptions().getPassword());
1285			}
1286			String sig = account.getPgpSignature();
1287			if (sig != null) {
1288				packet.addChild("status").setContent("online");
1289				packet.addChild("x", "jabber:x:signed").setContent(sig);
1290			}
1291			if (conversation.getMessages().size() != 0) {
1292				final SimpleDateFormat mDateFormat = new SimpleDateFormat(
1293						"yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
1294				mDateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
1295				Date date = new Date(conversation.getLatestMessage()
1296						.getTimeSent() + 1000);
1297				x.addChild("history").setAttribute("since",
1298						mDateFormat.format(date));
1299			}
1300			packet.addChild(x);
1301			sendPresencePacket(account, packet);
1302			if (!joinJid.equals(conversation.getContactJid())) {
1303				conversation.setContactJid(joinJid);
1304				databaseBackend.updateConversation(conversation);
1305			}
1306		} else {
1307			account.pendingConferenceJoins.add(conversation);
1308		}
1309	}
1310
1311	public void setOnRenameListener(OnRenameListener listener) {
1312		this.renameListener = listener;
1313	}
1314
1315	public void providePasswordForMuc(Conversation conversation, String password) {
1316		if (conversation.getMode() == Conversation.MODE_MULTI) {
1317			conversation.getMucOptions().setPassword(password);
1318			if (conversation.getBookmark() != null) {
1319				conversation.getBookmark().setAutojoin(true);
1320				pushBookmarks(conversation.getAccount());
1321			}
1322			databaseBackend.updateConversation(conversation);
1323			joinMuc(conversation);
1324		}
1325	}
1326
1327	public void renameInMuc(final Conversation conversation, final String nick) {
1328		final MucOptions options = conversation.getMucOptions();
1329		options.setJoinNick(nick);
1330		if (options.online()) {
1331			Account account = conversation.getAccount();
1332			options.setOnRenameListener(new OnRenameListener() {
1333
1334				@Override
1335				public void onRename(boolean success) {
1336					if (renameListener != null) {
1337						renameListener.onRename(success);
1338					}
1339					if (success) {
1340						conversation.setContactJid(conversation.getMucOptions()
1341								.getJoinJid());
1342						databaseBackend.updateConversation(conversation);
1343						Bookmark bookmark = conversation.getBookmark();
1344						if (bookmark != null) {
1345							bookmark.setNick(nick);
1346							pushBookmarks(bookmark.getAccount());
1347						}
1348					}
1349				}
1350			});
1351			options.flagAboutToRename();
1352			PresencePacket packet = new PresencePacket();
1353			packet.setTo(options.getJoinJid());
1354			packet.setFrom(conversation.getAccount().getJid());
1355
1356			String sig = account.getPgpSignature();
1357			if (sig != null) {
1358				packet.addChild("status").setContent("online");
1359				packet.addChild("x", "jabber:x:signed").setContent(sig);
1360			}
1361			sendPresencePacket(account, packet);
1362		} else {
1363			conversation.setContactJid(options.getJoinJid());
1364			databaseBackend.updateConversation(conversation);
1365			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1366				Bookmark bookmark = conversation.getBookmark();
1367				if (bookmark != null) {
1368					bookmark.setNick(nick);
1369					pushBookmarks(bookmark.getAccount());
1370				}
1371				joinMuc(conversation);
1372			}
1373		}
1374	}
1375
1376	public void leaveMuc(Conversation conversation) {
1377		Account account = conversation.getAccount();
1378		account.pendingConferenceJoins.remove(conversation);
1379		account.pendingConferenceLeaves.remove(conversation);
1380		if (account.getStatus() == Account.State.ONLINE) {
1381			PresencePacket packet = new PresencePacket();
1382			packet.setTo(conversation.getMucOptions().getJoinJid());
1383			packet.setFrom(conversation.getAccount().getJid());
1384			packet.setAttribute("type", "unavailable");
1385			sendPresencePacket(conversation.getAccount(), packet);
1386			conversation.getMucOptions().setOffline();
1387			conversation.deregisterWithBookmark();
1388			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid()
1389					+ ": leaving muc " + conversation.getContactJid());
1390		} else {
1391			account.pendingConferenceLeaves.add(conversation);
1392		}
1393	}
1394
1395	public void disconnect(Account account, boolean force) {
1396		if ((account.getStatus() == Account.State.ONLINE)
1397				|| (account.getStatus() == Account.State.DISABLED)) {
1398			if (!force) {
1399				List<Conversation> conversations = getConversations();
1400				for (Conversation conversation : conversations) {
1401					if (conversation.getAccount() == account) {
1402						if (conversation.getMode() == Conversation.MODE_MULTI) {
1403							leaveMuc(conversation);
1404						} else {
1405							if (conversation.endOtrIfNeeded()) {
1406								Log.d(Config.LOGTAG, account.getJid().toBareJid()
1407										+ ": ended otr session with "
1408										+ conversation.getContactJid());
1409							}
1410						}
1411					}
1412				}
1413			}
1414			account.getXmppConnection().disconnect(force);
1415				}
1416	}
1417
1418	@Override
1419	public IBinder onBind(Intent intent) {
1420		return mBinder;
1421	}
1422
1423	public void updateMessage(Message message) {
1424		databaseBackend.updateMessage(message);
1425		updateConversationUi();
1426	}
1427
1428	protected void syncDirtyContacts(Account account) {
1429		for (Contact contact : account.getRoster().getContacts()) {
1430			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
1431				pushContactToServer(contact);
1432			}
1433			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
1434				deleteContactOnServer(contact);
1435			}
1436		}
1437	}
1438
1439	public void createContact(Contact contact) {
1440		SharedPreferences sharedPref = getPreferences();
1441		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1442		if (autoGrant) {
1443			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
1444			contact.setOption(Contact.Options.ASKING);
1445		}
1446		pushContactToServer(contact);
1447	}
1448
1449	public void onOtrSessionEstablished(Conversation conversation) {
1450		Account account = conversation.getAccount();
1451		List<Message> messages = conversation.getMessages();
1452		Session otrSession = conversation.getOtrSession();
1453		Log.d(Config.LOGTAG,
1454				account.getJid().toBareJid() + " otr session established with "
1455				+ conversation.getContactJid() + "/"
1456				+ otrSession.getSessionID().getUserID());
1457		for (Message msg : messages) {
1458			if ((msg.getStatus() == Message.STATUS_UNSEND || msg.getStatus() == Message.STATUS_WAITING)
1459					&& (msg.getEncryption() == Message.ENCRYPTION_OTR)) {
1460				SessionID id = otrSession.getSessionID();
1461				try {
1462					msg.setCounterpart(Jid.fromString(id.getAccountID() + "/" + id.getUserID()));
1463				} catch (InvalidJidException e) {
1464					break;
1465				}
1466				if (msg.getType() == Message.TYPE_TEXT) {
1467					MessagePacket outPacket = mMessageGenerator
1468						.generateOtrChat(msg, true);
1469					if (outPacket != null) {
1470						msg.setStatus(Message.STATUS_SEND);
1471						databaseBackend.updateMessage(msg);
1472						sendMessagePacket(account, outPacket);
1473					}
1474				} else if (msg.getType() == Message.TYPE_IMAGE || msg.getType() == Message.TYPE_FILE) {
1475					mJingleConnectionManager.createNewConnection(msg);
1476				}
1477					}
1478		}
1479		updateConversationUi();
1480	}
1481
1482	public boolean renewSymmetricKey(Conversation conversation) {
1483		Account account = conversation.getAccount();
1484		byte[] symmetricKey = new byte[32];
1485		this.mRandom.nextBytes(symmetricKey);
1486		Session otrSession = conversation.getOtrSession();
1487		if (otrSession != null) {
1488			MessagePacket packet = new MessagePacket();
1489			packet.setType(MessagePacket.TYPE_CHAT);
1490			packet.setFrom(account.getJid());
1491			packet.addChild("private", "urn:xmpp:carbons:2");
1492			packet.addChild("no-copy", "urn:xmpp:hints");
1493			packet.setAttribute("to", otrSession.getSessionID().getAccountID() + "/"
1494					+ otrSession.getSessionID().getUserID());
1495			try {
1496				packet.setBody(otrSession
1497						.transformSending(CryptoHelper.FILETRANSFER
1498							+ CryptoHelper.bytesToHex(symmetricKey)));
1499				sendMessagePacket(account, packet);
1500				conversation.setSymmetricKey(symmetricKey);
1501				return true;
1502			} catch (OtrException e) {
1503				return false;
1504			}
1505		}
1506		return false;
1507	}
1508
1509	public void pushContactToServer(Contact contact) {
1510		contact.resetOption(Contact.Options.DIRTY_DELETE);
1511		contact.setOption(Contact.Options.DIRTY_PUSH);
1512		Account account = contact.getAccount();
1513		if (account.getStatus() == Account.State.ONLINE) {
1514			boolean ask = contact.getOption(Contact.Options.ASKING);
1515			boolean sendUpdates = contact
1516				.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
1517				&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
1518			IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1519			iq.query("jabber:iq:roster").addChild(contact.asElement());
1520			account.getXmppConnection().sendIqPacket(iq, null);
1521			if (sendUpdates) {
1522				sendPresencePacket(account,
1523						mPresenceGenerator.sendPresenceUpdatesTo(contact));
1524			}
1525			if (ask) {
1526				sendPresencePacket(account,
1527						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
1528			}
1529		}
1530	}
1531
1532	public void publishAvatar(Account account, Uri image,
1533			final UiCallback<Avatar> callback) {
1534		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
1535		final int size = Config.AVATAR_SIZE;
1536		final Avatar avatar = getFileBackend()
1537			.getPepAvatar(image, size, format);
1538		if (avatar != null) {
1539			avatar.height = size;
1540			avatar.width = size;
1541			if (format.equals(Bitmap.CompressFormat.WEBP)) {
1542				avatar.type = "image/webp";
1543			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
1544				avatar.type = "image/jpeg";
1545			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
1546				avatar.type = "image/png";
1547			}
1548			if (!getFileBackend().save(avatar)) {
1549				callback.error(R.string.error_saving_avatar, avatar);
1550				return;
1551			}
1552			IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
1553			this.sendIqPacket(account, packet, new OnIqPacketReceived() {
1554
1555				@Override
1556				public void onIqPacketReceived(Account account, IqPacket result) {
1557					if (result.getType() == IqPacket.TYPE_RESULT) {
1558						IqPacket packet = XmppConnectionService.this.mIqGenerator
1559							.publishAvatarMetadata(avatar);
1560						sendIqPacket(account, packet, new OnIqPacketReceived() {
1561
1562							@Override
1563							public void onIqPacketReceived(Account account,
1564									IqPacket result) {
1565								if (result.getType() == IqPacket.TYPE_RESULT) {
1566									if (account.setAvatar(avatar.getFilename())) {
1567										databaseBackend.updateAccount(account);
1568									}
1569									callback.success(avatar);
1570								} else {
1571									callback.error(
1572											R.string.error_publish_avatar_server_reject,
1573											avatar);
1574								}
1575							}
1576						});
1577					} else {
1578						callback.error(
1579								R.string.error_publish_avatar_server_reject,
1580								avatar);
1581					}
1582				}
1583			});
1584		} else {
1585			callback.error(R.string.error_publish_avatar_converting, null);
1586		}
1587	}
1588
1589	public void fetchAvatar(Account account, Avatar avatar) {
1590		fetchAvatar(account, avatar, null);
1591	}
1592
1593	public void fetchAvatar(Account account, final Avatar avatar,
1594			final UiCallback<Avatar> callback) {
1595		IqPacket packet = this.mIqGenerator.retrieveAvatar(avatar);
1596		sendIqPacket(account, packet, new OnIqPacketReceived() {
1597
1598			@Override
1599			public void onIqPacketReceived(Account account, IqPacket result) {
1600				final String ERROR = account.getJid().toBareJid()
1601					+ ": fetching avatar for " + avatar.owner + " failed ";
1602				if (result.getType() == IqPacket.TYPE_RESULT) {
1603					avatar.image = mIqParser.avatarData(result);
1604					if (avatar.image != null) {
1605						if (getFileBackend().save(avatar)) {
1606							if (account.getJid().toBareJid().equals(avatar.owner)) {
1607								if (account.setAvatar(avatar.getFilename())) {
1608									databaseBackend.updateAccount(account);
1609								}
1610								getAvatarService().clear(account);
1611								updateConversationUi();
1612								updateAccountUi();
1613							} else {
1614								Contact contact = account.getRoster()
1615									.getContact(avatar.owner);
1616								contact.setAvatar(avatar.getFilename());
1617								getAvatarService().clear(contact);
1618								updateConversationUi();
1619								updateRosterUi();
1620							}
1621							if (callback != null) {
1622								callback.success(avatar);
1623							}
1624							Log.d(Config.LOGTAG, account.getJid().toBareJid()
1625									+ ": succesfully fetched avatar for "
1626									+ avatar.owner);
1627							return;
1628						}
1629					} else {
1630
1631						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
1632					}
1633				} else {
1634					Element error = result.findChild("error");
1635					if (error == null) {
1636						Log.d(Config.LOGTAG, ERROR + "(server error)");
1637					} else {
1638						Log.d(Config.LOGTAG, ERROR + error.toString());
1639					}
1640				}
1641				if (callback != null) {
1642					callback.error(0, null);
1643				}
1644
1645			}
1646		});
1647	}
1648
1649	public void checkForAvatar(Account account,
1650			final UiCallback<Avatar> callback) {
1651		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
1652		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
1653
1654			@Override
1655			public void onIqPacketReceived(Account account, IqPacket packet) {
1656				if (packet.getType() == IqPacket.TYPE_RESULT) {
1657					Element pubsub = packet.findChild("pubsub",
1658							"http://jabber.org/protocol/pubsub");
1659					if (pubsub != null) {
1660						Element items = pubsub.findChild("items");
1661						if (items != null) {
1662							Avatar avatar = Avatar.parseMetadata(items);
1663							if (avatar != null) {
1664								avatar.owner = account.getJid().toBareJid();
1665								if (fileBackend.isAvatarCached(avatar)) {
1666									if (account.setAvatar(avatar.getFilename())) {
1667										databaseBackend.updateAccount(account);
1668									}
1669									getAvatarService().clear(account);
1670									callback.success(avatar);
1671								} else {
1672									fetchAvatar(account, avatar, callback);
1673								}
1674								return;
1675							}
1676						}
1677					}
1678				}
1679				callback.error(0, null);
1680			}
1681		});
1682	}
1683
1684	public void deleteContactOnServer(Contact contact) {
1685		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
1686		contact.resetOption(Contact.Options.DIRTY_PUSH);
1687		contact.setOption(Contact.Options.DIRTY_DELETE);
1688		Account account = contact.getAccount();
1689		if (account.getStatus() == Account.State.ONLINE) {
1690			IqPacket iq = new IqPacket(IqPacket.TYPE_SET);
1691			Element item = iq.query("jabber:iq:roster").addChild("item");
1692			item.setAttribute("jid", contact.getJid().toString());
1693			item.setAttribute("subscription", "remove");
1694			account.getXmppConnection().sendIqPacket(iq, null);
1695		}
1696	}
1697
1698	public void updateConversation(Conversation conversation) {
1699		this.databaseBackend.updateConversation(conversation);
1700	}
1701
1702	public void reconnectAccount(final Account account, final boolean force) {
1703		new Thread(new Runnable() {
1704
1705			@Override
1706			public void run() {
1707				if (account.getXmppConnection() != null) {
1708					disconnect(account, force);
1709				}
1710				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1711					if (account.getXmppConnection() == null) {
1712						account.setXmppConnection(createConnection(account));
1713					}
1714					Thread thread = new Thread(account.getXmppConnection());
1715					thread.start();
1716					scheduleWakeupCall((int) (Config.CONNECT_TIMEOUT * 1.2),
1717							false);
1718				} else {
1719					account.getRoster().clearPresences();
1720					account.setXmppConnection(null);
1721				}
1722			}
1723		}).start();
1724	}
1725
1726	public void invite(Conversation conversation, String contact) {
1727		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
1728		sendMessagePacket(conversation.getAccount(), packet);
1729	}
1730
1731	public void resetSendingToWaiting(Account account) {
1732		for (Conversation conversation : getConversations()) {
1733			if (conversation.getAccount() == account) {
1734				for (Message message : conversation.getMessages()) {
1735					if (message.getType() != Message.TYPE_IMAGE
1736							&& message.getStatus() == Message.STATUS_UNSEND) {
1737						markMessage(message, Message.STATUS_WAITING);
1738							}
1739				}
1740			}
1741		}
1742	}
1743
1744	public boolean markMessage(final Account account, final Jid recipient, final String uuid,
1745			final int status) {
1746		if (uuid == null) {
1747			return false;
1748		} else {
1749			for (Conversation conversation : getConversations()) {
1750				if (conversation.getContactJid().equals(recipient)
1751						&& conversation.getAccount().equals(account)) {
1752					return markMessage(conversation, uuid, status);
1753						}
1754			}
1755			return false;
1756		}
1757	}
1758
1759	public boolean markMessage(Conversation conversation, String uuid,
1760			int status) {
1761		if (uuid == null) {
1762			return false;
1763		} else {
1764			for (Message message : conversation.getMessages()) {
1765				if (uuid.equals(message.getUuid())
1766						|| (message.getStatus() >= Message.STATUS_SEND && uuid
1767							.equals(message.getRemoteMsgId()))) {
1768					markMessage(message, status);
1769					return true;
1770							}
1771			}
1772			return false;
1773		}
1774	}
1775
1776	public void markMessage(Message message, int status) {
1777		if (status == Message.STATUS_SEND_FAILED
1778				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
1779					.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
1780			return;
1781					}
1782		message.setStatus(status);
1783		databaseBackend.updateMessage(message);
1784		updateConversationUi();
1785	}
1786
1787	public SharedPreferences getPreferences() {
1788		return PreferenceManager
1789			.getDefaultSharedPreferences(getApplicationContext());
1790	}
1791
1792	public boolean forceEncryption() {
1793		return getPreferences().getBoolean("force_encryption", false);
1794	}
1795
1796	public boolean confirmMessages() {
1797		return getPreferences().getBoolean("confirm_messages", true);
1798	}
1799
1800	public boolean saveEncryptedMessages() {
1801		return !getPreferences().getBoolean("dont_save_encrypted", false);
1802	}
1803
1804	public boolean indicateReceived() {
1805		return getPreferences().getBoolean("indicate_received", false);
1806	}
1807
1808	public void updateConversationUi() {
1809		if (mOnConversationUpdate != null) {
1810			mOnConversationUpdate.onConversationUpdate();
1811		}
1812	}
1813
1814	public void updateAccountUi() {
1815		if (mOnAccountUpdate != null) {
1816			mOnAccountUpdate.onAccountUpdate();
1817		}
1818	}
1819
1820	public void updateRosterUi() {
1821		if (mOnRosterUpdate != null) {
1822			mOnRosterUpdate.onRosterUpdate();
1823		}
1824	}
1825
1826	public Account findAccountByJid(final Jid accountJid) {
1827		for (Account account : this.accounts) {
1828			if (account.getJid().toBareJid().equals(accountJid.toBareJid())) {
1829				return account;
1830			}
1831		}
1832		return null;
1833	}
1834
1835	public Conversation findConversationByUuid(String uuid) {
1836		for (Conversation conversation : getConversations()) {
1837			if (conversation.getUuid().equals(uuid)) {
1838				return conversation;
1839			}
1840		}
1841		return null;
1842	}
1843
1844	public void markRead(Conversation conversation, boolean calledByUi) {
1845		mNotificationService.clear(conversation);
1846		final Message markable = conversation.getLatestMarkableMessage();
1847		conversation.markRead();
1848		if (confirmMessages() && markable != null && markable.getRemoteMsgId() != null && calledByUi) {
1849			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid()+ ": sending read marker to " + markable.getCounterpart().toString());
1850			Account account = conversation.getAccount();
1851			final Jid to = markable.getCounterpart();
1852			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId());
1853			this.sendMessagePacket(conversation.getAccount(),packet);
1854		}
1855		if (!calledByUi) {
1856			updateConversationUi();
1857		}
1858	}
1859
1860	public void failWaitingOtrMessages(Conversation conversation) {
1861		for (Message message : conversation.getMessages()) {
1862			if (message.getEncryption() == Message.ENCRYPTION_OTR
1863					&& message.getStatus() == Message.STATUS_WAITING) {
1864				markMessage(message, Message.STATUS_SEND_FAILED);
1865					}
1866		}
1867	}
1868
1869	public SecureRandom getRNG() {
1870		return this.mRandom;
1871	}
1872
1873	public MemorizingTrustManager getMemorizingTrustManager() {
1874		return this.mMemorizingTrustManager;
1875	}
1876
1877	public PowerManager getPowerManager() {
1878		return this.pm;
1879	}
1880
1881	public LruCache<String, Bitmap> getBitmapCache() {
1882		return this.mBitmapCache;
1883	}
1884
1885	public void replyWithNotAcceptable(Account account, MessagePacket packet) {
1886		if (account.getStatus() == Account.State.ONLINE) {
1887			MessagePacket error = this.mMessageGenerator
1888				.generateNotAcceptable(packet);
1889			sendMessagePacket(account, error);
1890		}
1891	}
1892
1893	public void syncRosterToDisk(final Account account) {
1894		new Thread(new Runnable() {
1895
1896			@Override
1897			public void run() {
1898				databaseBackend.writeRoster(account.getRoster());
1899			}
1900		}).start();
1901
1902	}
1903
1904	public List<String> getKnownHosts() {
1905		List<String> hosts = new ArrayList<>();
1906		for (Account account : getAccounts()) {
1907			if (!hosts.contains(account.getServer().toString())) {
1908				hosts.add(account.getServer().toString());
1909			}
1910			for (Contact contact : account.getRoster().getContacts()) {
1911				if (contact.showInRoster()) {
1912					final String server = contact.getServer().toString();
1913					if (server != null && !hosts.contains(server)) {
1914						hosts.add(server);
1915					}
1916				}
1917			}
1918		}
1919		return hosts;
1920	}
1921
1922	public List<String> getKnownConferenceHosts() {
1923		ArrayList<String> mucServers = new ArrayList<>();
1924		for (Account account : accounts) {
1925			if (account.getXmppConnection() != null) {
1926				String server = account.getXmppConnection().getMucServer();
1927				if (server != null && !mucServers.contains(server)) {
1928					mucServers.add(server);
1929				}
1930			}
1931		}
1932		return mucServers;
1933	}
1934
1935	public void sendMessagePacket(Account account, MessagePacket packet) {
1936		XmppConnection connection = account.getXmppConnection();
1937		if (connection != null) {
1938			connection.sendMessagePacket(packet);
1939		}
1940	}
1941
1942	public void sendPresencePacket(Account account, PresencePacket packet) {
1943		XmppConnection connection = account.getXmppConnection();
1944		if (connection != null) {
1945			connection.sendPresencePacket(packet);
1946		}
1947	}
1948
1949	public void sendIqPacket(Account account, IqPacket packet,
1950			OnIqPacketReceived callback) {
1951		XmppConnection connection = account.getXmppConnection();
1952		if (connection != null) {
1953			connection.sendIqPacket(packet, callback);
1954		}
1955	}
1956
1957	public MessageGenerator getMessageGenerator() {
1958		return this.mMessageGenerator;
1959	}
1960
1961	public PresenceGenerator getPresenceGenerator() {
1962		return this.mPresenceGenerator;
1963	}
1964
1965	public IqGenerator getIqGenerator() {
1966		return this.mIqGenerator;
1967	}
1968
1969	public JingleConnectionManager getJingleConnectionManager() {
1970		return this.mJingleConnectionManager;
1971	}
1972
1973	public List<Contact> findContacts(Jid jid) {
1974		ArrayList<Contact> contacts = new ArrayList<>();
1975		for (Account account : getAccounts()) {
1976			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
1977				Contact contact = account.getRoster().getContactFromRoster(jid);
1978				if (contact != null) {
1979					contacts.add(contact);
1980				}
1981			}
1982		}
1983		return contacts;
1984	}
1985
1986	public NotificationService getNotificationService() {
1987		return this.mNotificationService;
1988	}
1989
1990	public HttpConnectionManager getHttpConnectionManager() {
1991		return this.mHttpConnectionManager;
1992	}
1993
1994	public void resendFailedMessages(Message message) {
1995		List<Message> messages = new ArrayList<>();
1996		Message current = message;
1997		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
1998			messages.add(current);
1999			if (current.mergeable(current.next())) {
2000				current = current.next();
2001			} else {
2002				break;
2003			}
2004		}
2005		for (Message msg : messages) {
2006			markMessage(msg, Message.STATUS_WAITING);
2007			this.resendMessage(msg);
2008		}
2009	}
2010
2011	public interface OnConversationUpdate {
2012		public void onConversationUpdate();
2013	}
2014
2015	public interface OnAccountUpdate {
2016		public void onAccountUpdate();
2017	}
2018
2019	public interface OnRosterUpdate {
2020		public void onRosterUpdate();
2021	}
2022
2023	public class XmppConnectionBinder extends Binder {
2024		public XmppConnectionService getService() {
2025			return XmppConnectionService.this;
2026		}
2027	}
2028}