XmppConnectionService.java

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