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.Looper;
  20import android.os.PowerManager;
  21import android.os.PowerManager.WakeLock;
  22import android.os.SystemClock;
  23import android.preference.PreferenceManager;
  24import android.provider.ContactsContract;
  25import android.util.Log;
  26import android.util.LruCache;
  27
  28import net.java.otr4j.OtrException;
  29import net.java.otr4j.session.Session;
  30import net.java.otr4j.session.SessionID;
  31import net.java.otr4j.session.SessionStatus;
  32
  33import org.openintents.openpgp.util.OpenPgpApi;
  34import org.openintents.openpgp.util.OpenPgpServiceConnection;
  35
  36import java.math.BigInteger;
  37import java.security.SecureRandom;
  38import java.util.ArrayList;
  39import java.util.Arrays;
  40import java.util.Collection;
  41import java.util.Collections;
  42import java.util.Comparator;
  43import java.util.Hashtable;
  44import java.util.Iterator;
  45import java.util.List;
  46import java.util.Locale;
  47import java.util.Map;
  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.Blockable;
  56import eu.siacs.conversations.entities.Bookmark;
  57import eu.siacs.conversations.entities.Contact;
  58import eu.siacs.conversations.entities.Conversation;
  59import eu.siacs.conversations.entities.Downloadable;
  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.utils.Xmlns;
  81import eu.siacs.conversations.xml.Element;
  82import eu.siacs.conversations.xmpp.OnBindListener;
  83import eu.siacs.conversations.xmpp.OnContactStatusChanged;
  84import eu.siacs.conversations.xmpp.OnIqPacketReceived;
  85import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
  86import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
  87import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
  88import eu.siacs.conversations.xmpp.OnStatusChanged;
  89import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
  90import eu.siacs.conversations.xmpp.XmppConnection;
  91import eu.siacs.conversations.xmpp.chatstate.ChatState;
  92import eu.siacs.conversations.xmpp.forms.Data;
  93import eu.siacs.conversations.xmpp.forms.Field;
  94import eu.siacs.conversations.xmpp.jid.InvalidJidException;
  95import eu.siacs.conversations.xmpp.jid.Jid;
  96import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  97import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
  98import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
  99import eu.siacs.conversations.xmpp.pep.Avatar;
 100import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 101import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 102import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 103
 104public class XmppConnectionService extends Service implements OnPhoneContactsLoadedListener {
 105
 106	public static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 107	public static final String ACTION_DISABLE_FOREGROUND = "disable_foreground";
 108	private static final String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
 109	public static final String ACTION_TRY_AGAIN = "try_again";
 110	public static final String ACTION_DISABLE_ACCOUNT = "disable_account";
 111	private ContentObserver contactObserver = new ContentObserver(null) {
 112		@Override
 113		public void onChange(boolean selfChange) {
 114			super.onChange(selfChange);
 115			Intent intent = new Intent(getApplicationContext(),
 116					XmppConnectionService.class);
 117			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 118			startService(intent);
 119		}
 120	};
 121	private final IBinder mBinder = new XmppConnectionBinder();
 122	private final List<Conversation> conversations = new CopyOnWriteArrayList<>();
 123	private final FileObserver fileObserver = new FileObserver(
 124			FileBackend.getConversationsImageDirectory()) {
 125
 126		@Override
 127		public void onEvent(int event, String path) {
 128			if (event == FileObserver.DELETE) {
 129				markFileDeleted(path.split("\\.")[0]);
 130			}
 131		}
 132	};
 133	private final OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 134
 135		@Override
 136		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 137			mJingleConnectionManager.deliverPacket(account, packet);
 138		}
 139	};
 140	private final OnBindListener mOnBindListener = new OnBindListener() {
 141
 142		@Override
 143		public void onBind(final Account account) {
 144			account.getRoster().clearPresences();
 145			account.pendingConferenceJoins.clear();
 146			account.pendingConferenceLeaves.clear();
 147			fetchRosterFromServer(account);
 148			fetchBookmarks(account);
 149			sendPresence(account);
 150			connectMultiModeConversations(account);
 151			updateConversationUi();
 152		}
 153	};
 154	private final OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 155
 156		@Override
 157		public void onMessageAcknowledged(Account account, String uuid) {
 158			for (final Conversation conversation : getConversations()) {
 159				if (conversation.getAccount() == account) {
 160					Message message = conversation.findUnsentMessageWithUuid(uuid);
 161					if (message != null) {
 162						markMessage(message, Message.STATUS_SEND);
 163						if (conversation.setLastMessageTransmitted(System.currentTimeMillis())) {
 164							databaseBackend.updateConversation(conversation);
 165						}
 166					}
 167				}
 168			}
 169		}
 170	};
 171	private final IqGenerator mIqGenerator = new IqGenerator(this);
 172	public DatabaseBackend databaseBackend;
 173	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 174
 175		@Override
 176		public void onContactStatusChanged(Contact contact, boolean online) {
 177			Conversation conversation = find(getConversations(), contact);
 178			if (conversation != null) {
 179				if (online) {
 180					conversation.endOtrIfNeeded();
 181					if (contact.getPresences().size() == 1) {
 182						sendUnsentMessages(conversation);
 183					}
 184				} else {
 185					if (contact.getPresences().size() >= 1) {
 186						if (conversation.hasValidOtrSession()) {
 187							String otrResource = conversation.getOtrSession().getSessionID().getUserID();
 188							if (!(Arrays.asList(contact.getPresences().asStringArray()).contains(otrResource))) {
 189								conversation.endOtrIfNeeded();
 190							}
 191						}
 192					} else {
 193						conversation.endOtrIfNeeded();
 194					}
 195				}
 196			}
 197		}
 198	};
 199	private FileBackend fileBackend = new FileBackend(this);
 200	private MemorizingTrustManager mMemorizingTrustManager;
 201	private NotificationService mNotificationService = new NotificationService(
 202			this);
 203	private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 204	private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 205	private IqParser mIqParser = new IqParser(this);
 206	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 207	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 208	private List<Account> accounts;
 209	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 210			this);
 211	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 212			this);
 213	private AvatarService mAvatarService = new AvatarService(this);
 214	private final List<String> mInProgressAvatarFetches = new ArrayList<>();
 215	private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 216	private OnConversationUpdate mOnConversationUpdate = null;
 217	private Integer convChangedListenerCount = 0;
 218	private OnAccountUpdate mOnAccountUpdate = null;
 219	private OnStatusChanged statusListener = new OnStatusChanged() {
 220
 221		@Override
 222		public void onStatusChanged(Account account) {
 223			XmppConnection connection = account.getXmppConnection();
 224			if (mOnAccountUpdate != null) {
 225				mOnAccountUpdate.onAccountUpdate();
 226			}
 227			if (account.getStatus() == Account.State.ONLINE) {
 228				for (Conversation conversation : account.pendingConferenceLeaves) {
 229					leaveMuc(conversation);
 230				}
 231				for (Conversation conversation : account.pendingConferenceJoins) {
 232					joinMuc(conversation);
 233				}
 234				mMessageArchiveService.executePendingQueries(account);
 235				mJingleConnectionManager.cancelInTransmission();
 236				List<Conversation> conversations = getConversations();
 237				for (Conversation conversation : conversations) {
 238					if (conversation.getAccount() == account) {
 239						conversation.startOtrIfNeeded();
 240						sendUnsentMessages(conversation);
 241					}
 242				}
 243				if (connection != null && connection.getFeatures().csi()) {
 244					if (checkListeners()) {
 245						Log.d(Config.LOGTAG, account.getJid().toBareJid()
 246								+ " sending csi//inactive");
 247						connection.sendInactive();
 248					} else {
 249						Log.d(Config.LOGTAG, account.getJid().toBareJid()
 250								+ " sending csi//active");
 251						connection.sendActive();
 252					}
 253				}
 254				syncDirtyContacts(account);
 255				scheduleWakeUpCall(Config.PING_MAX_INTERVAL,account.getUuid().hashCode());
 256			} else if (account.getStatus() == Account.State.OFFLINE) {
 257				resetSendingToWaiting(account);
 258				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 259					int timeToReconnect = mRandom.nextInt(50) + 10;
 260					scheduleWakeUpCall(timeToReconnect,account.getUuid().hashCode());
 261				}
 262			} else if (account.getStatus() == Account.State.REGISTRATION_SUCCESSFUL) {
 263				databaseBackend.updateAccount(account);
 264				reconnectAccount(account, true);
 265			} else if ((account.getStatus() != Account.State.CONNECTING)
 266					&& (account.getStatus() != Account.State.NO_INTERNET)) {
 267				if (connection != null) {
 268					int next = connection.getTimeToNextAttempt();
 269					Log.d(Config.LOGTAG, account.getJid().toBareJid()
 270							+ ": error connecting account. try again in "
 271							+ next + "s for the "
 272							+ (connection.getAttempt() + 1) + " time");
 273					scheduleWakeUpCall(next,account.getUuid().hashCode());
 274				}
 275					}
 276			getNotificationService().updateErrorNotification();
 277		}
 278	};
 279	private int accountChangedListenerCount = 0;
 280	private OnRosterUpdate mOnRosterUpdate = null;
 281	private OnUpdateBlocklist mOnUpdateBlocklist = null;
 282	private int updateBlocklistListenerCount = 0;
 283	private int rosterChangedListenerCount = 0;
 284	private OnMucRosterUpdate mOnMucRosterUpdate = null;
 285	private int mucRosterChangedListenerCount = 0;
 286	private SecureRandom mRandom;
 287	private OpenPgpServiceConnection pgpServiceConnection;
 288	private PgpEngine mPgpEngine = null;
 289	private WakeLock wakeLock;
 290	private PowerManager pm;
 291	private LruCache<String, Bitmap> mBitmapCache;
 292	private Thread mPhoneContactMergerThread;
 293
 294	private boolean mRestoredFromDatabase = false;
 295	public boolean areMessagesInitialized() {
 296		return this.mRestoredFromDatabase;
 297	}
 298
 299	public PgpEngine getPgpEngine() {
 300		if (pgpServiceConnection.isBound()) {
 301			if (this.mPgpEngine == null) {
 302				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 303							getApplicationContext(),
 304							pgpServiceConnection.getService()), this);
 305			}
 306			return mPgpEngine;
 307		} else {
 308			return null;
 309		}
 310
 311	}
 312
 313	public FileBackend getFileBackend() {
 314		return this.fileBackend;
 315	}
 316
 317	public AvatarService getAvatarService() {
 318		return this.mAvatarService;
 319	}
 320
 321	public void attachLocationToConversation(final Conversation conversation,
 322											 final Uri uri,
 323											 final UiCallback<Message> callback) {
 324		int encryption = conversation.getNextEncryption(forceEncryption());
 325		if (encryption == Message.ENCRYPTION_PGP) {
 326			encryption = Message.ENCRYPTION_DECRYPTED;
 327		}
 328		Message message = new Message(conversation,uri.toString(),encryption);
 329		if (conversation.getNextCounterpart() != null) {
 330			message.setCounterpart(conversation.getNextCounterpart());
 331		}
 332		if (encryption == Message.ENCRYPTION_DECRYPTED) {
 333			getPgpEngine().encrypt(message, callback);
 334		} else {
 335			callback.success(message);
 336		}
 337	}
 338
 339	public void attachFileToConversation(final Conversation conversation,
 340			final Uri uri,
 341			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_FILE);
 352		String path = getFileBackend().getOriginalPath(uri);
 353		if (path!=null) {
 354			message.setRelativeFilePath(path);
 355			getFileBackend().updateFileParams(message);
 356			if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 357				getPgpEngine().encrypt(message, callback);
 358			} else {
 359				callback.success(message);
 360			}
 361		} else {
 362			new Thread(new Runnable() {
 363				@Override
 364				public void run() {
 365					try {
 366						getFileBackend().copyFileToPrivateStorage(message, uri);
 367						getFileBackend().updateFileParams(message);
 368						if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 369							getPgpEngine().encrypt(message, callback);
 370						} else {
 371							callback.success(message);
 372						}
 373					} catch (FileBackend.FileCopyException e) {
 374						callback.error(e.getResId(),message);
 375					}
 376				}
 377			}).start();
 378
 379		}
 380	}
 381
 382	public void attachImageToConversation(final Conversation conversation,
 383			final Uri uri, final UiCallback<Message> callback) {
 384		final Message message;
 385		if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 386			message = new Message(conversation, "",
 387					Message.ENCRYPTION_DECRYPTED);
 388		} else {
 389			message = new Message(conversation, "",
 390					conversation.getNextEncryption(forceEncryption()));
 391		}
 392		message.setCounterpart(conversation.getNextCounterpart());
 393		message.setType(Message.TYPE_IMAGE);
 394		new Thread(new Runnable() {
 395
 396			@Override
 397			public void run() {
 398				try {
 399					getFileBackend().copyImageToPrivateStorage(message, uri);
 400					if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 401						getPgpEngine().encrypt(message, callback);
 402					} else {
 403						callback.success(message);
 404					}
 405				} catch (final FileBackend.FileCopyException e) {
 406					callback.error(e.getResId(), message);
 407				}
 408			}
 409		}).start();
 410	}
 411
 412	public Conversation find(Bookmark bookmark) {
 413		return find(bookmark.getAccount(), bookmark.getJid());
 414	}
 415
 416	public Conversation find(final Account account, final Jid jid) {
 417		return find(getConversations(), account, jid);
 418	}
 419
 420	@Override
 421	public int onStartCommand(Intent intent, int flags, int startId) {
 422		final String action = intent == null ? null : intent.getAction();
 423		if (action != null) {
 424			switch (action) {
 425				case ConnectivityManager.CONNECTIVITY_ACTION:
 426					if (hasInternetConnection() && Config.RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE) {
 427						resetAllAttemptCounts(true);
 428					}
 429					break;
 430				case ACTION_MERGE_PHONE_CONTACTS:
 431					if (mRestoredFromDatabase) {
 432						PhoneHelper.loadPhoneContacts(getApplicationContext(),
 433								new CopyOnWriteArrayList<Bundle>(),
 434								this);
 435					}
 436					return START_STICKY;
 437				case Intent.ACTION_SHUTDOWN:
 438					logoutAndSave();
 439					return START_NOT_STICKY;
 440				case ACTION_CLEAR_NOTIFICATION:
 441					mNotificationService.clear();
 442					break;
 443				case ACTION_DISABLE_FOREGROUND:
 444					getPreferences().edit().putBoolean("keep_foreground_service",false).commit();
 445					toggleForegroundService();
 446					break;
 447				case ACTION_TRY_AGAIN:
 448					resetAllAttemptCounts(false);
 449					break;
 450				case ACTION_DISABLE_ACCOUNT:
 451					try {
 452						String jid = intent.getStringExtra("account");
 453						Account account = jid == null ? null : findAccountByJid(Jid.fromString(jid));
 454						if (account != null) {
 455							account.setOption(Account.OPTION_DISABLED,true);
 456							updateAccount(account);
 457						}
 458					} catch (final InvalidJidException ignored) {
 459						break;
 460					}
 461					break;
 462			}
 463		}
 464		this.wakeLock.acquire();
 465
 466		for (Account account : accounts) {
 467			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 468				if (!hasInternetConnection()) {
 469					account.setStatus(Account.State.NO_INTERNET);
 470					if (statusListener != null) {
 471						statusListener.onStatusChanged(account);
 472					}
 473				} else {
 474					if (account.getStatus() == Account.State.NO_INTERNET) {
 475						account.setStatus(Account.State.OFFLINE);
 476						if (statusListener != null) {
 477							statusListener.onStatusChanged(account);
 478						}
 479					}
 480					if (account.getStatus() == Account.State.ONLINE) {
 481						long lastReceived = account.getXmppConnection().getLastPacketReceived();
 482						long lastSent = account.getXmppConnection().getLastPingSent();
 483						long pingInterval = "ui".equals(action) ? Config.PING_MIN_INTERVAL * 1000 : Config.PING_MAX_INTERVAL * 1000;
 484						long msToNextPing = (Math.max(lastReceived,lastSent) + pingInterval) - SystemClock.elapsedRealtime();
 485						if (lastSent > lastReceived && (lastSent +  Config.PING_TIMEOUT * 1000) < SystemClock.elapsedRealtime()) {
 486							Log.d(Config.LOGTAG, account.getJid().toBareJid()+ ": ping timeout");
 487							this.reconnectAccount(account, true);
 488						} else if (msToNextPing <= 0) {
 489							account.getXmppConnection().sendPing();
 490							Log.d(Config.LOGTAG, account.getJid().toBareJid()+" send ping");
 491							this.scheduleWakeUpCall(Config.PING_TIMEOUT,account.getUuid().hashCode());
 492						} else {
 493							this.scheduleWakeUpCall((int) (msToNextPing / 1000), account.getUuid().hashCode());
 494						}
 495					} else if (account.getStatus() == Account.State.OFFLINE) {
 496						reconnectAccount(account,true);
 497					} else if (account.getStatus() == Account.State.CONNECTING) {
 498						long timeout = Config.CONNECT_TIMEOUT - ((SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000);
 499						if (timeout < 0) {
 500							Log.d(Config.LOGTAG, account.getJid() + ": time out during connect reconnecting");
 501							reconnectAccount(account, true);
 502						} else {
 503							scheduleWakeUpCall((int) timeout,account.getUuid().hashCode());
 504						}
 505					} else {
 506						if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 507							reconnectAccount(account, true);
 508						}
 509					}
 510
 511				}
 512				if (mOnAccountUpdate != null) {
 513					mOnAccountUpdate.onAccountUpdate();
 514				}
 515			}
 516		}
 517		/*PowerManager pm = (PowerManager) this.getSystemService(Context.POWER_SERVICE);
 518			if (!pm.isScreenOn()) {
 519			removeStaleListeners();
 520			}*/
 521		if (wakeLock.isHeld()) {
 522			try {
 523				wakeLock.release();
 524			} catch (final RuntimeException ignored) {
 525			}
 526		}
 527		return START_STICKY;
 528	}
 529
 530	private void resetAllAttemptCounts(boolean reallyAll) {
 531		Log.d(Config.LOGTAG,"resetting all attepmt counts");
 532		for(Account account : accounts) {
 533			if (account.hasErrorStatus() || reallyAll) {
 534				final XmppConnection connection = account.getXmppConnection();
 535				if (connection != null) {
 536					connection.resetAttemptCount();
 537				}
 538			}
 539		}
 540	}
 541
 542	public boolean hasInternetConnection() {
 543		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 544			.getSystemService(Context.CONNECTIVITY_SERVICE);
 545		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 546		return activeNetwork != null && activeNetwork.isConnected();
 547	}
 548
 549	@SuppressLint("TrulyRandom")
 550	@Override
 551	public void onCreate() {
 552		ExceptionHelper.init(getApplicationContext());
 553		PRNGFixes.apply();
 554		this.mRandom = new SecureRandom();
 555		updateMemorizingTrustmanager();
 556		final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
 557		final int cacheSize = maxMemory / 8;
 558		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
 559			@Override
 560			protected int sizeOf(final String key, final Bitmap bitmap) {
 561				return bitmap.getByteCount() / 1024;
 562			}
 563		};
 564
 565		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 566		this.accounts = databaseBackend.getAccounts();
 567
 568		for (final Account account : this.accounts) {
 569			account.initOtrEngine(this);
 570		}
 571		restoreFromDatabase();
 572
 573		getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 574		this.fileObserver.startWatching();
 575		this.pgpServiceConnection = new OpenPgpServiceConnection(getApplicationContext(), "org.sufficientlysecure.keychain");
 576		this.pgpServiceConnection.bindToService();
 577
 578		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 579		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,"XmppConnectionService");
 580		toggleForegroundService();
 581	}
 582
 583	public void toggleForegroundService() {
 584		if (getPreferences().getBoolean("keep_foreground_service",false)) {
 585			startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, this.mNotificationService.createForegroundNotification());
 586		} else {
 587			stopForeground(true);
 588		}
 589	}
 590
 591	@Override
 592	public void onTaskRemoved(final Intent rootIntent) {
 593		super.onTaskRemoved(rootIntent);
 594		if (!getPreferences().getBoolean("keep_foreground_service",false)) {
 595			this.logoutAndSave();
 596		}
 597	}
 598
 599	private void logoutAndSave() {
 600		for (final Account account : accounts) {
 601			databaseBackend.writeRoster(account.getRoster());
 602			if (account.getXmppConnection() != null) {
 603				disconnect(account, false);
 604			}
 605		}
 606		Context context = getApplicationContext();
 607		AlarmManager alarmManager = (AlarmManager) context
 608			.getSystemService(Context.ALARM_SERVICE);
 609		Intent intent = new Intent(context, EventReceiver.class);
 610		alarmManager.cancel(PendingIntent.getBroadcast(context, 0, intent, 0));
 611		Log.d(Config.LOGTAG, "good bye");
 612		stopSelf();
 613	}
 614
 615	protected void scheduleWakeUpCall(int seconds, int requestCode) {
 616		final long timeToWake = SystemClock.elapsedRealtime() + (seconds + 1) * 1000;
 617
 618		Context context = getApplicationContext();
 619		AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
 620
 621		Intent intent = new Intent(context, EventReceiver.class);
 622		intent.setAction("ping");
 623		PendingIntent alarmIntent = PendingIntent.getBroadcast(context, requestCode, intent, 0);
 624		alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, alarmIntent);
 625	}
 626
 627	public XmppConnection createConnection(final Account account) {
 628		final SharedPreferences sharedPref = getPreferences();
 629		account.setResource(sharedPref.getString("resource", "mobile")
 630				.toLowerCase(Locale.getDefault()));
 631		final XmppConnection connection = new XmppConnection(account, this);
 632		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
 633		connection.setOnStatusChangedListener(this.statusListener);
 634		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
 635		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
 636		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 637		connection.setOnBindListener(this.mOnBindListener);
 638		connection.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
 639		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mMessageArchiveService);
 640		return connection;
 641	}
 642
 643	public void sendChatState(Conversation conversation) {
 644		if (sendChatStates()) {
 645			MessagePacket packet = mMessageGenerator.generateChatState(conversation);
 646			sendMessagePacket(conversation.getAccount(), packet);
 647		}
 648	}
 649
 650	public void sendMessage(final Message message) {
 651		final Account account = message.getConversation().getAccount();
 652		account.deactivateGracePeriod();
 653		final Conversation conv = message.getConversation();
 654		MessagePacket packet = null;
 655		boolean saveInDb = true;
 656		boolean send = false;
 657		if (account.getStatus() == Account.State.ONLINE
 658				&& account.getXmppConnection() != null) {
 659			if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) {
 660				if (message.getCounterpart() != null) {
 661					if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 662						if (!conv.hasValidOtrSession()) {
 663							conv.startOtrSession(message.getCounterpart().getResourcepart(),true);
 664							message.setStatus(Message.STATUS_WAITING);
 665						} else if (conv.hasValidOtrSession()
 666								&& conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 667							mJingleConnectionManager
 668								.createNewConnection(message);
 669								}
 670					} else {
 671						mJingleConnectionManager.createNewConnection(message);
 672					}
 673				} else {
 674					if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 675						conv.startOtrIfNeeded();
 676					}
 677					message.setStatus(Message.STATUS_WAITING);
 678				}
 679			} else {
 680				if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 681					if (!conv.hasValidOtrSession() && (message.getCounterpart() != null)) {
 682						conv.startOtrSession(message.getCounterpart().getResourcepart(), true);
 683						message.setStatus(Message.STATUS_WAITING);
 684					} else if (conv.hasValidOtrSession()) {
 685						if (conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 686							packet = mMessageGenerator.generateOtrChat(message);
 687							send = true;
 688						} else {
 689							message.setStatus(Message.STATUS_WAITING);
 690							conv.startOtrIfNeeded();
 691						}
 692					} else {
 693						message.setStatus(Message.STATUS_WAITING);
 694					}
 695				} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 696					message.getConversation().endOtrIfNeeded();
 697					message.getConversation().findUnsentMessagesWithOtrEncryption(new Conversation.OnMessageFound() {
 698						@Override
 699						public void onMessageFound(Message message) {
 700							markMessage(message,Message.STATUS_SEND_FAILED);
 701						}
 702					});
 703					packet = mMessageGenerator.generatePgpChat(message);
 704					send = true;
 705				} else {
 706					message.getConversation().endOtrIfNeeded();
 707					message.getConversation().findUnsentMessagesWithOtrEncryption(new Conversation.OnMessageFound() {
 708						@Override
 709						public void onMessageFound(Message message) {
 710							markMessage(message,Message.STATUS_SEND_FAILED);
 711						}
 712					});
 713					packet = mMessageGenerator.generateChat(message);
 714					send = true;
 715				}
 716			}
 717			if (!account.getXmppConnection().getFeatures().sm()
 718					&& conv.getMode() != Conversation.MODE_MULTI) {
 719				message.setStatus(Message.STATUS_SEND);
 720					}
 721		} else {
 722			message.setStatus(Message.STATUS_WAITING);
 723			if (message.getType() == Message.TYPE_TEXT) {
 724				if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 725					String pgpBody = message.getEncryptedBody();
 726					String decryptedBody = message.getBody();
 727					message.setBody(pgpBody);
 728					message.setEncryption(Message.ENCRYPTION_PGP);
 729					databaseBackend.createMessage(message);
 730					saveInDb = false;
 731					message.setBody(decryptedBody);
 732					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 733				} else if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 734					if (!conv.hasValidOtrSession()
 735							&& message.getCounterpart() != null) {
 736						conv.startOtrSession(message.getCounterpart().getResourcepart(), false);
 737							}
 738				}
 739			}
 740
 741		}
 742		conv.add(message);
 743		if (saveInDb) {
 744			if (message.getEncryption() == Message.ENCRYPTION_NONE
 745					|| saveEncryptedMessages()) {
 746				databaseBackend.createMessage(message);
 747					}
 748		}
 749		if ((send) && (packet != null)) {
 750			if (conv.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
 751				if (this.sendChatStates()) {
 752					packet.addChild(ChatState.toElement(conv.getOutgoingChatState()));
 753				}
 754			}
 755			sendMessagePacket(account, packet);
 756		}
 757		updateConversationUi();
 758	}
 759
 760	private void sendUnsentMessages(final Conversation conversation) {
 761		conversation.findWaitingMessages(new Conversation.OnMessageFound() {
 762
 763			@Override
 764			public void onMessageFound(Message message) {
 765				resendMessage(message);
 766			}
 767		});
 768	}
 769
 770	private void resendMessage(final Message message) {
 771		Account account = message.getConversation().getAccount();
 772		MessagePacket packet = null;
 773		if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 774			Presences presences = message.getConversation().getContact()
 775				.getPresences();
 776			if (!message.getConversation().hasValidOtrSession()) {
 777				if ((message.getCounterpart() != null)
 778						&& (presences.has(message.getCounterpart().getResourcepart()))) {
 779					message.getConversation().startOtrSession(message.getCounterpart().getResourcepart(), true);
 780				} else {
 781					if (presences.size() == 1) {
 782						String presence = presences.asStringArray()[0];
 783						message.getConversation().startOtrSession(presence, true);
 784					}
 785				}
 786			} else {
 787				if (message.getConversation().getOtrSession()
 788						.getSessionStatus() == SessionStatus.ENCRYPTED) {
 789					try {
 790						message.setCounterpart(Jid.fromSessionID(message.getConversation().getOtrSession().getSessionID()));
 791						if (message.getType() == Message.TYPE_TEXT) {
 792							packet = mMessageGenerator.generateOtrChat(message,
 793									true);
 794						} else if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) {
 795							mJingleConnectionManager.createNewConnection(message);
 796						}
 797					} catch (final InvalidJidException ignored) {
 798
 799					}
 800						}
 801			}
 802		} else if (message.getType() == Message.TYPE_TEXT) {
 803			if (message.getEncryption() == Message.ENCRYPTION_NONE) {
 804				packet = mMessageGenerator.generateChat(message, true);
 805			} else if ((message.getEncryption() == Message.ENCRYPTION_DECRYPTED)
 806					|| (message.getEncryption() == Message.ENCRYPTION_PGP)) {
 807				packet = mMessageGenerator.generatePgpChat(message, true);
 808					}
 809		} else if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) {
 810			Contact contact = message.getConversation().getContact();
 811			Presences presences = contact.getPresences();
 812			if ((message.getCounterpart() != null)
 813					&& (presences.has(message.getCounterpart().getResourcepart()))) {
 814				mJingleConnectionManager.createNewConnection(message);
 815			} else {
 816				if (presences.size() == 1) {
 817					String presence = presences.asStringArray()[0];
 818					try {
 819						message.setCounterpart(Jid.fromParts(contact.getJid().getLocalpart(), contact.getJid().getDomainpart(), presence));
 820					} catch (InvalidJidException e) {
 821						return;
 822					}
 823					mJingleConnectionManager.createNewConnection(message);
 824				}
 825			}
 826		}
 827		if (packet != null) {
 828			if (!account.getXmppConnection().getFeatures().sm()
 829					&& message.getConversation().getMode() != Conversation.MODE_MULTI) {
 830				markMessage(message, Message.STATUS_SEND);
 831			} else {
 832				markMessage(message, Message.STATUS_UNSEND);
 833			}
 834			if (message.getConversation().setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
 835				if (this.sendChatStates()) {
 836					packet.addChild(ChatState.toElement(message.getConversation().getOutgoingChatState()));
 837				}
 838			}
 839			sendMessagePacket(account, packet);
 840		}
 841	}
 842
 843	public void fetchRosterFromServer(final Account account) {
 844		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
 845		if (!"".equals(account.getRosterVersion())) {
 846			Log.d(Config.LOGTAG, account.getJid().toBareJid()
 847					+ ": fetching roster version " + account.getRosterVersion());
 848		} else {
 849			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching roster");
 850		}
 851		iqPacket.query(Xmlns.ROSTER).setAttribute("ver",
 852				account.getRosterVersion());
 853		account.getXmppConnection().sendIqPacket(iqPacket, mIqParser);
 854	}
 855
 856	public void fetchBookmarks(final Account account) {
 857		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
 858		final Element query = iqPacket.query("jabber:iq:private");
 859		query.addChild("storage", "storage:bookmarks");
 860		final OnIqPacketReceived callback = new OnIqPacketReceived() {
 861
 862			@Override
 863			public void onIqPacketReceived(final Account account, final IqPacket packet) {
 864				final Element query = packet.query();
 865				final List<Bookmark> bookmarks = new CopyOnWriteArrayList<>();
 866				final Element storage = query.findChild("storage",
 867						"storage:bookmarks");
 868				if (storage != null) {
 869					for (final Element item : storage.getChildren()) {
 870						if (item.getName().equals("conference")) {
 871							final Bookmark bookmark = Bookmark.parse(item, account);
 872							bookmarks.add(bookmark);
 873							Conversation conversation = find(bookmark);
 874							if (conversation != null) {
 875								conversation.setBookmark(bookmark);
 876							} else if (bookmark.autojoin() && bookmark.getJid() != null) {
 877								conversation = findOrCreateConversation(
 878										account, bookmark.getJid(), true);
 879								conversation.setBookmark(bookmark);
 880								joinMuc(conversation);
 881							}
 882						}
 883					}
 884				}
 885				account.setBookmarks(bookmarks);
 886			}
 887		};
 888		sendIqPacket(account, iqPacket, callback);
 889	}
 890
 891	public void pushBookmarks(Account account) {
 892		IqPacket iqPacket = new IqPacket(IqPacket.TYPE.SET);
 893		Element query = iqPacket.query("jabber:iq:private");
 894		Element storage = query.addChild("storage", "storage:bookmarks");
 895		for (Bookmark bookmark : account.getBookmarks()) {
 896			storage.addChild(bookmark);
 897		}
 898		sendIqPacket(account, iqPacket, null);
 899	}
 900
 901	public void onPhoneContactsLoaded(final List<Bundle> phoneContacts) {
 902		if (mPhoneContactMergerThread != null) {
 903			mPhoneContactMergerThread.interrupt();
 904		}
 905		mPhoneContactMergerThread = new Thread(new Runnable() {
 906			@Override
 907			public void run() {
 908				Log.d(Config.LOGTAG,"start merging phone contacts with roster");
 909				for (Account account : accounts) {
 910					account.getRoster().clearSystemAccounts();
 911					for (Bundle phoneContact : phoneContacts) {
 912						if (Thread.interrupted()) {
 913							Log.d(Config.LOGTAG,"interrupted merging phone contacts");
 914							return;
 915						}
 916						Jid jid;
 917						try {
 918							jid = Jid.fromString(phoneContact.getString("jid"));
 919						} catch (final InvalidJidException e) {
 920							continue;
 921						}
 922						final Contact contact = account.getRoster().getContact(jid);
 923						String systemAccount = phoneContact.getInt("phoneid")
 924							+ "#"
 925							+ phoneContact.getString("lookup");
 926						contact.setSystemAccount(systemAccount);
 927						contact.setPhotoUri(phoneContact.getString("photouri"));
 928						getAvatarService().clear(contact);
 929						contact.setSystemName(phoneContact.getString("displayname"));
 930					}
 931				}
 932				Log.d(Config.LOGTAG,"finished merging phone contacts");
 933				updateAccountUi();
 934			}
 935		});
 936		mPhoneContactMergerThread.start();
 937	}
 938
 939	private void restoreFromDatabase() {
 940		synchronized (this.conversations) {
 941			final Map<String, Account> accountLookupTable = new Hashtable<>();
 942			for (Account account : this.accounts) {
 943				accountLookupTable.put(account.getUuid(), account);
 944			}
 945			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
 946			for (Conversation conversation : this.conversations) {
 947				Account account = accountLookupTable.get(conversation.getAccountUuid());
 948				conversation.setAccount(account);
 949			}
 950			new Thread(new Runnable() {
 951				@Override
 952				public void run() {
 953					Log.d(Config.LOGTAG,"restoring roster");
 954					for(Account account : accounts) {
 955						databaseBackend.readRoster(account.getRoster());
 956					}
 957					getBitmapCache().evictAll();
 958					Looper.prepare();
 959					PhoneHelper.loadPhoneContacts(getApplicationContext(),
 960							new CopyOnWriteArrayList<Bundle>(),
 961							XmppConnectionService.this);
 962					Log.d(Config.LOGTAG,"restoring messages");
 963					for (Conversation conversation : conversations) {
 964						conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
 965						checkDeletedFiles(conversation);
 966					}
 967					mRestoredFromDatabase = true;
 968					Log.d(Config.LOGTAG,"restored all messages");
 969					updateConversationUi();
 970				}
 971			}).start();
 972		}
 973	}
 974
 975	public List<Conversation> getConversations() {
 976		return this.conversations;
 977	}
 978
 979	private void checkDeletedFiles(Conversation conversation) {
 980		conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
 981
 982			@Override
 983			public void onMessageFound(Message message) {
 984				if (!getFileBackend().isFileAvailable(message)) {
 985					message.setDownloadable(new DownloadablePlaceholder(Downloadable.STATUS_DELETED));
 986				}
 987			}
 988		});
 989	}
 990
 991	private void markFileDeleted(String uuid) {
 992		for (Conversation conversation : getConversations()) {
 993			Message message = conversation.findMessageWithFileAndUuid(uuid);
 994			if (message != null) {
 995				if (!getFileBackend().isFileAvailable(message)) {
 996					message.setDownloadable(new DownloadablePlaceholder(Downloadable.STATUS_DELETED));
 997					updateConversationUi();
 998				}
 999				return;
1000			}
1001		}
1002	}
1003
1004	public void populateWithOrderedConversations(final List<Conversation> list) {
1005		populateWithOrderedConversations(list, true);
1006	}
1007
1008	public void populateWithOrderedConversations(final List<Conversation> list, boolean includeConferences) {
1009		list.clear();
1010		if (includeConferences) {
1011			list.addAll(getConversations());
1012		} else {
1013			for (Conversation conversation : getConversations()) {
1014				if (conversation.getMode() == Conversation.MODE_SINGLE) {
1015					list.add(conversation);
1016				}
1017			}
1018		}
1019		Collections.sort(list, new Comparator<Conversation>() {
1020			@Override
1021			public int compare(Conversation lhs, Conversation rhs) {
1022				Message left = lhs.getLatestMessage();
1023				Message right = rhs.getLatestMessage();
1024				if (left.getTimeSent() > right.getTimeSent()) {
1025					return -1;
1026				} else if (left.getTimeSent() < right.getTimeSent()) {
1027					return 1;
1028				} else {
1029					return 0;
1030				}
1031			}
1032		});
1033	}
1034
1035	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
1036		Log.d(Config.LOGTAG,"load more messages for "+conversation.getName() + " prior to "+MessageGenerator.getTimestamp(timestamp));
1037		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation,callback)) {
1038			return;
1039		}
1040		new Thread(new Runnable() {
1041			@Override
1042			public void run() {
1043				final Account account = conversation.getAccount();
1044				List<Message> messages = databaseBackend.getMessages(conversation, 50,timestamp);
1045				if (messages.size() > 0) {
1046					conversation.addAll(0, messages);
1047					checkDeletedFiles(conversation);
1048					callback.onMoreMessagesLoaded(messages.size(), conversation);
1049				} else if (conversation.hasMessagesLeftOnServer()
1050						&& account.isOnlineAndConnected()
1051						&& account.getXmppConnection().getFeatures().mam()) {
1052					MessageArchiveService.Query query = getMessageArchiveService().query(conversation,0,timestamp - 1);
1053					if (query != null) {
1054						query.setCallback(callback);
1055					}
1056					callback.informUser(R.string.fetching_history_from_server);
1057				}
1058			}
1059		}).start();
1060	}
1061
1062	public List<Account> getAccounts() {
1063		return this.accounts;
1064	}
1065
1066	public Conversation find(final Iterable<Conversation> haystack, final Contact contact) {
1067		for (final Conversation conversation : haystack) {
1068			if (conversation.getContact() == contact) {
1069				return conversation;
1070			}
1071		}
1072		return null;
1073	}
1074
1075	public Conversation find(final Iterable<Conversation> haystack, final Account account, final Jid jid) {
1076		if (jid == null) {
1077			return null;
1078		}
1079		for (final Conversation conversation : haystack) {
1080			if ((account == null || conversation.getAccount() == account)
1081					&& (conversation.getJid().toBareJid().equals(jid.toBareJid()))) {
1082				return conversation;
1083			}
1084		}
1085		return null;
1086	}
1087
1088	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc) {
1089		return this.findOrCreateConversation(account, jid, muc, null);
1090	}
1091
1092	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final MessageArchiveService.Query query) {
1093		synchronized (this.conversations) {
1094			Conversation conversation = find(account, jid);
1095			if (conversation != null) {
1096				return conversation;
1097			}
1098			conversation = databaseBackend.findConversation(account, jid);
1099			if (conversation != null) {
1100				conversation.setStatus(Conversation.STATUS_AVAILABLE);
1101				conversation.setAccount(account);
1102				if (muc) {
1103					conversation.setMode(Conversation.MODE_MULTI);
1104					conversation.setContactJid(jid);
1105				} else {
1106					conversation.setMode(Conversation.MODE_SINGLE);
1107					conversation.setContactJid(jid.toBareJid());
1108				}
1109				conversation.setNextEncryption(-1);
1110				conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1111				this.databaseBackend.updateConversation(conversation);
1112			} else {
1113				String conversationName;
1114				Contact contact = account.getRoster().getContact(jid);
1115				if (contact != null) {
1116					conversationName = contact.getDisplayName();
1117				} else {
1118					conversationName = jid.getLocalpart();
1119				}
1120				if (muc) {
1121					conversation = new Conversation(conversationName, account, jid,
1122							Conversation.MODE_MULTI);
1123				} else {
1124					conversation = new Conversation(conversationName, account, jid.toBareJid(),
1125							Conversation.MODE_SINGLE);
1126				}
1127				this.databaseBackend.createConversation(conversation);
1128			}
1129			if (account.getXmppConnection() != null
1130					&& account.getXmppConnection().getFeatures().mam()
1131					&& !muc) {
1132				if (query == null) {
1133					this.mMessageArchiveService.query(conversation);
1134				} else {
1135					if (query.getConversation() == null) {
1136						this.mMessageArchiveService.query(conversation, query.getStart());
1137					}
1138				}
1139			}
1140			checkDeletedFiles(conversation);
1141			this.conversations.add(conversation);
1142			updateConversationUi();
1143			return conversation;
1144		}
1145	}
1146
1147	public void archiveConversation(Conversation conversation) {
1148		getNotificationService().clear(conversation);
1149		conversation.setStatus(Conversation.STATUS_ARCHIVED);
1150		conversation.setNextEncryption(-1);
1151		synchronized (this.conversations) {
1152			if (conversation.getMode() == Conversation.MODE_MULTI) {
1153				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1154					Bookmark bookmark = conversation.getBookmark();
1155					if (bookmark != null && bookmark.autojoin()) {
1156						bookmark.setAutojoin(false);
1157						pushBookmarks(bookmark.getAccount());
1158					}
1159				}
1160				leaveMuc(conversation);
1161			} else {
1162				conversation.endOtrIfNeeded();
1163			}
1164			this.databaseBackend.updateConversation(conversation);
1165			this.conversations.remove(conversation);
1166			updateConversationUi();
1167		}
1168	}
1169
1170	public void createAccount(final Account account) {
1171		account.initOtrEngine(this);
1172		databaseBackend.createAccount(account);
1173		this.accounts.add(account);
1174		this.reconnectAccountInBackground(account);
1175		updateAccountUi();
1176	}
1177
1178	public void updateAccount(final Account account) {
1179		this.statusListener.onStatusChanged(account);
1180		databaseBackend.updateAccount(account);
1181		reconnectAccount(account, false);
1182		updateAccountUi();
1183		getNotificationService().updateErrorNotification();
1184	}
1185
1186	public void updateAccountPasswordOnServer(final Account account, final String newPassword, final OnAccountPasswordChanged callback) {
1187		final IqPacket iq = getIqGenerator().generateSetPassword(account, newPassword);
1188		sendIqPacket(account, iq, new OnIqPacketReceived() {
1189			@Override
1190			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1191				if (packet.getType() == IqPacket.TYPE.RESULT) {
1192					account.setPassword(newPassword);
1193					databaseBackend.updateAccount(account);
1194					callback.onPasswordChangeSucceeded();
1195				} else {
1196					callback.onPasswordChangeFailed();
1197				}
1198			}
1199		});
1200	}
1201
1202	public void deleteAccount(final Account account) {
1203		synchronized (this.conversations) {
1204			for (final Conversation conversation : conversations) {
1205				if (conversation.getAccount() == account) {
1206					if (conversation.getMode() == Conversation.MODE_MULTI) {
1207						leaveMuc(conversation);
1208					} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
1209						conversation.endOtrIfNeeded();
1210					}
1211					conversations.remove(conversation);
1212				}
1213			}
1214			if (account.getXmppConnection() != null) {
1215				this.disconnect(account, true);
1216			}
1217			databaseBackend.deleteAccount(account);
1218			this.accounts.remove(account);
1219			updateAccountUi();
1220			getNotificationService().updateErrorNotification();
1221		}
1222	}
1223
1224	public void setOnConversationListChangedListener(OnConversationUpdate listener) {
1225		synchronized (this) {
1226			if (checkListeners()) {
1227				switchToForeground();
1228			}
1229			this.mOnConversationUpdate = listener;
1230			this.mNotificationService.setIsInForeground(true);
1231			if (this.convChangedListenerCount < 2) {
1232				this.convChangedListenerCount++;
1233			}
1234		}
1235	}
1236
1237	public void removeOnConversationListChangedListener() {
1238		synchronized (this) {
1239			this.convChangedListenerCount--;
1240			if (this.convChangedListenerCount <= 0) {
1241				this.convChangedListenerCount = 0;
1242				this.mOnConversationUpdate = null;
1243				this.mNotificationService.setIsInForeground(false);
1244				if (checkListeners()) {
1245					switchToBackground();
1246				}
1247			}
1248		}
1249	}
1250
1251	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
1252		synchronized (this) {
1253			if (checkListeners()) {
1254				switchToForeground();
1255			}
1256			this.mOnAccountUpdate = listener;
1257			if (this.accountChangedListenerCount < 2) {
1258				this.accountChangedListenerCount++;
1259			}
1260		}
1261	}
1262
1263	public void removeOnAccountListChangedListener() {
1264		synchronized (this) {
1265			this.accountChangedListenerCount--;
1266			if (this.accountChangedListenerCount <= 0) {
1267				this.mOnAccountUpdate = null;
1268				this.accountChangedListenerCount = 0;
1269				if (checkListeners()) {
1270					switchToBackground();
1271				}
1272			}
1273		}
1274	}
1275
1276	public void setOnRosterUpdateListener(final OnRosterUpdate listener) {
1277		synchronized (this) {
1278			if (checkListeners()) {
1279				switchToForeground();
1280			}
1281			this.mOnRosterUpdate = listener;
1282			if (this.rosterChangedListenerCount < 2) {
1283				this.rosterChangedListenerCount++;
1284			}
1285		}
1286	}
1287
1288	public void removeOnRosterUpdateListener() {
1289		synchronized (this) {
1290			this.rosterChangedListenerCount--;
1291			if (this.rosterChangedListenerCount <= 0) {
1292				this.rosterChangedListenerCount = 0;
1293				this.mOnRosterUpdate = null;
1294				if (checkListeners()) {
1295					switchToBackground();
1296				}
1297			}
1298		}
1299	}
1300
1301	public void setOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
1302		synchronized (this) {
1303			if (checkListeners()) {
1304				switchToForeground();
1305			}
1306			this.mOnUpdateBlocklist = listener;
1307			if (this.updateBlocklistListenerCount < 2) {
1308				this.updateBlocklistListenerCount++;
1309			}
1310		}
1311	}
1312
1313	public void removeOnUpdateBlocklistListener() {
1314		synchronized (this) {
1315			this.updateBlocklistListenerCount--;
1316			if (this.updateBlocklistListenerCount <= 0) {
1317				this.updateBlocklistListenerCount = 0;
1318				this.mOnUpdateBlocklist = null;
1319				if (checkListeners()) {
1320					switchToBackground();
1321				}
1322			}
1323		}
1324	}
1325
1326	public void setOnMucRosterUpdateListener(OnMucRosterUpdate listener) {
1327		synchronized (this) {
1328			if (checkListeners()) {
1329				switchToForeground();
1330			}
1331			this.mOnMucRosterUpdate = listener;
1332			if (this.mucRosterChangedListenerCount < 2) {
1333				this.mucRosterChangedListenerCount++;
1334			}
1335		}
1336	}
1337
1338	public void removeOnMucRosterUpdateListener() {
1339		synchronized (this) {
1340			this.mucRosterChangedListenerCount--;
1341			if (this.mucRosterChangedListenerCount <= 0) {
1342				this.mucRosterChangedListenerCount = 0;
1343				this.mOnMucRosterUpdate = null;
1344				if (checkListeners()) {
1345					switchToBackground();
1346				}
1347			}
1348		}
1349	}
1350
1351	private boolean checkListeners() {
1352		return (this.mOnAccountUpdate == null
1353				&& this.mOnConversationUpdate == null
1354				&& this.mOnRosterUpdate == null
1355				&& this.mOnUpdateBlocklist == null);
1356	}
1357
1358	private void switchToForeground() {
1359		for (Account account : getAccounts()) {
1360			if (account.getStatus() == Account.State.ONLINE) {
1361				XmppConnection connection = account.getXmppConnection();
1362				if (connection != null && connection.getFeatures().csi()) {
1363					connection.sendActive();
1364				}
1365			}
1366		}
1367		Log.d(Config.LOGTAG, "app switched into foreground");
1368	}
1369
1370	private void switchToBackground() {
1371		for (Account account : getAccounts()) {
1372			if (account.getStatus() == Account.State.ONLINE) {
1373				XmppConnection connection = account.getXmppConnection();
1374				if (connection != null && connection.getFeatures().csi()) {
1375					connection.sendInactive();
1376				}
1377			}
1378		}
1379		for(Conversation conversation : getConversations()) {
1380			conversation.setIncomingChatState(ChatState.ACTIVE);
1381		}
1382		this.mNotificationService.setIsInForeground(false);
1383		Log.d(Config.LOGTAG, "app switched into background");
1384	}
1385
1386	private void connectMultiModeConversations(Account account) {
1387		List<Conversation> conversations = getConversations();
1388		for (Conversation conversation : conversations) {
1389			if ((conversation.getMode() == Conversation.MODE_MULTI)
1390					&& (conversation.getAccount() == account)) {
1391				conversation.resetMucOptions();
1392				joinMuc(conversation);
1393			}
1394		}
1395	}
1396
1397	public void joinMuc(Conversation conversation) {
1398		Account account = conversation.getAccount();
1399		account.pendingConferenceJoins.remove(conversation);
1400		account.pendingConferenceLeaves.remove(conversation);
1401		if (account.getStatus() == Account.State.ONLINE) {
1402			final String nick = conversation.getMucOptions().getProposedNick();
1403			final Jid joinJid = conversation.getMucOptions().createJoinJid(nick);
1404			if (joinJid == null) {
1405				return; //safety net
1406			}
1407			Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": joining conversation " + joinJid.toString());
1408			PresencePacket packet = new PresencePacket();
1409			packet.setFrom(conversation.getAccount().getJid());
1410			packet.setTo(joinJid);
1411			Element x = packet.addChild("x", "http://jabber.org/protocol/muc");
1412			if (conversation.getMucOptions().getPassword() != null) {
1413				x.addChild("password").setContent(conversation.getMucOptions().getPassword());
1414			}
1415			x.addChild("history").setAttribute("since", PresenceGenerator.getTimestamp(conversation.getLastMessageTransmitted()));
1416			String sig = account.getPgpSignature();
1417			if (sig != null) {
1418				packet.addChild("status").setContent("online");
1419				packet.addChild("x", "jabber:x:signed").setContent(sig);
1420			}
1421			sendPresencePacket(account, packet);
1422			fetchConferenceConfiguration(conversation);
1423			if (!joinJid.equals(conversation.getJid())) {
1424				conversation.setContactJid(joinJid);
1425				databaseBackend.updateConversation(conversation);
1426			}
1427			conversation.setHasMessagesLeftOnServer(false);
1428		} else {
1429			account.pendingConferenceJoins.add(conversation);
1430		}
1431	}
1432
1433	public void providePasswordForMuc(Conversation conversation, String password) {
1434		if (conversation.getMode() == Conversation.MODE_MULTI) {
1435			conversation.getMucOptions().setPassword(password);
1436			if (conversation.getBookmark() != null) {
1437				conversation.getBookmark().setAutojoin(true);
1438				pushBookmarks(conversation.getAccount());
1439			}
1440			databaseBackend.updateConversation(conversation);
1441			joinMuc(conversation);
1442		}
1443	}
1444
1445	public void renameInMuc(final Conversation conversation, final String nick, final UiCallback<Conversation> callback) {
1446		final MucOptions options = conversation.getMucOptions();
1447		final Jid joinJid = options.createJoinJid(nick);
1448		if (options.online()) {
1449			Account account = conversation.getAccount();
1450			options.setOnRenameListener(new OnRenameListener() {
1451
1452				@Override
1453				public void onSuccess() {
1454					conversation.setContactJid(joinJid);
1455					databaseBackend.updateConversation(conversation);
1456					Bookmark bookmark = conversation.getBookmark();
1457					if (bookmark != null) {
1458						bookmark.setNick(nick);
1459						pushBookmarks(bookmark.getAccount());
1460					}
1461					callback.success(conversation);
1462				}
1463
1464				@Override
1465				public void onFailure() {
1466					callback.error(R.string.nick_in_use, conversation);
1467				}
1468			});
1469
1470			PresencePacket packet = new PresencePacket();
1471			packet.setTo(joinJid);
1472			packet.setFrom(conversation.getAccount().getJid());
1473
1474			String sig = account.getPgpSignature();
1475			if (sig != null) {
1476				packet.addChild("status").setContent("online");
1477				packet.addChild("x", "jabber:x:signed").setContent(sig);
1478			}
1479			sendPresencePacket(account, packet);
1480		} else {
1481			conversation.setContactJid(joinJid);
1482			databaseBackend.updateConversation(conversation);
1483			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1484				Bookmark bookmark = conversation.getBookmark();
1485				if (bookmark != null) {
1486					bookmark.setNick(nick);
1487					pushBookmarks(bookmark.getAccount());
1488				}
1489				joinMuc(conversation);
1490			}
1491		}
1492	}
1493
1494	public void leaveMuc(Conversation conversation) {
1495		Account account = conversation.getAccount();
1496		account.pendingConferenceJoins.remove(conversation);
1497		account.pendingConferenceLeaves.remove(conversation);
1498		if (account.getStatus() == Account.State.ONLINE) {
1499			PresencePacket packet = new PresencePacket();
1500			packet.setTo(conversation.getJid());
1501			packet.setFrom(conversation.getAccount().getJid());
1502			packet.setAttribute("type", "unavailable");
1503			sendPresencePacket(conversation.getAccount(), packet);
1504			conversation.getMucOptions().setOffline();
1505			conversation.deregisterWithBookmark();
1506			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid()
1507					+ ": leaving muc " + conversation.getJid());
1508		} else {
1509			account.pendingConferenceLeaves.add(conversation);
1510		}
1511	}
1512
1513	private String findConferenceServer(final Account account) {
1514		String server;
1515		if (account.getXmppConnection() != null) {
1516			server = account.getXmppConnection().getMucServer();
1517			if (server != null) {
1518				return server;
1519			}
1520		}
1521		for (Account other : getAccounts()) {
1522			if (other != account && other.getXmppConnection() != null) {
1523				server = other.getXmppConnection().getMucServer();
1524				if (server != null) {
1525					return server;
1526				}
1527			}
1528		}
1529		return null;
1530	}
1531
1532	public void createAdhocConference(final Account account, final Iterable<Jid> jids, final UiCallback<Conversation> callback) {
1533		Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": creating adhoc conference with " + jids.toString());
1534		if (account.getStatus() == Account.State.ONLINE) {
1535			try {
1536				String server = findConferenceServer(account);
1537				if (server == null) {
1538					if (callback != null) {
1539						callback.error(R.string.no_conference_server_found, null);
1540					}
1541					return;
1542				}
1543				String name = new BigInteger(75, getRNG()).toString(32);
1544				Jid jid = Jid.fromParts(name, server, null);
1545				final Conversation conversation = findOrCreateConversation(account, jid, true);
1546				joinMuc(conversation);
1547				Bundle options = new Bundle();
1548				options.putString("muc#roomconfig_persistentroom", "1");
1549				options.putString("muc#roomconfig_membersonly", "1");
1550				options.putString("muc#roomconfig_publicroom", "0");
1551				options.putString("muc#roomconfig_whois", "anyone");
1552				pushConferenceConfiguration(conversation, options, new OnConferenceOptionsPushed() {
1553					@Override
1554					public void onPushSucceeded() {
1555						for (Jid invite : jids) {
1556							invite(conversation, invite);
1557						}
1558						if (account.countPresences() > 1) {
1559							directInvite(conversation, account.getJid().toBareJid());
1560						}
1561						if (callback != null) {
1562							callback.success(conversation);
1563						}
1564					}
1565
1566					@Override
1567					public void onPushFailed() {
1568						if (callback != null) {
1569							callback.error(R.string.conference_creation_failed, conversation);
1570						}
1571					}
1572				});
1573
1574			} catch (InvalidJidException e) {
1575				if (callback != null) {
1576					callback.error(R.string.conference_creation_failed, null);
1577				}
1578			}
1579		} else {
1580			if (callback != null) {
1581				callback.error(R.string.not_connected_try_again, null);
1582			}
1583		}
1584	}
1585
1586	public void fetchConferenceConfiguration(final Conversation conversation) {
1587		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
1588		request.setTo(conversation.getJid().toBareJid());
1589		request.query("http://jabber.org/protocol/disco#info");
1590		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
1591			@Override
1592			public void onIqPacketReceived(Account account, IqPacket packet) {
1593				if (packet.getType() != IqPacket.TYPE.ERROR) {
1594					ArrayList<String> features = new ArrayList<>();
1595					for (Element child : packet.query().getChildren()) {
1596						if (child != null && child.getName().equals("feature")) {
1597							String var = child.getAttribute("var");
1598							if (var != null) {
1599								features.add(var);
1600							}
1601						}
1602					}
1603					conversation.getMucOptions().updateFeatures(features);
1604					updateConversationUi();
1605				}
1606			}
1607		});
1608	}
1609
1610	public void pushConferenceConfiguration(final Conversation conversation, final Bundle options, final OnConferenceOptionsPushed callback) {
1611		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
1612		request.setTo(conversation.getJid().toBareJid());
1613		request.query("http://jabber.org/protocol/muc#owner");
1614		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
1615			@Override
1616			public void onIqPacketReceived(Account account, IqPacket packet) {
1617				if (packet.getType() != IqPacket.TYPE.ERROR) {
1618					Data data = Data.parse(packet.query().findChild("x", "jabber:x:data"));
1619					for (Field field : data.getFields()) {
1620						if (options.containsKey(field.getName())) {
1621							field.setValue(options.getString(field.getName()));
1622						}
1623					}
1624					data.submit();
1625					IqPacket set = new IqPacket(IqPacket.TYPE.SET);
1626					set.setTo(conversation.getJid().toBareJid());
1627					set.query("http://jabber.org/protocol/muc#owner").addChild(data);
1628					sendIqPacket(account, set, new OnIqPacketReceived() {
1629						@Override
1630						public void onIqPacketReceived(Account account, IqPacket packet) {
1631							if (packet.getType() == IqPacket.TYPE.RESULT) {
1632								if (callback != null) {
1633									callback.onPushSucceeded();
1634								}
1635							} else {
1636								if (callback != null) {
1637									callback.onPushFailed();
1638								}
1639							}
1640						}
1641					});
1642				} else {
1643					if (callback != null) {
1644						callback.onPushFailed();
1645					}
1646				}
1647			}
1648		});
1649	}
1650
1651	public void pushSubjectToConference(final Conversation conference, final String subject) {
1652		MessagePacket packet = this.getMessageGenerator().conferenceSubject(conference, subject);
1653		this.sendMessagePacket(conference.getAccount(), packet);
1654		final MucOptions mucOptions = conference.getMucOptions();
1655		final MucOptions.User self = mucOptions.getSelf();
1656		if (!mucOptions.persistent() && self.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
1657			Bundle options = new Bundle();
1658			options.putString("muc#roomconfig_persistentroom", "1");
1659			this.pushConferenceConfiguration(conference, options, null);
1660		}
1661	}
1662
1663	public void changeAffiliationInConference(final Conversation conference, Jid user, MucOptions.Affiliation affiliation, final OnAffiliationChanged callback) {
1664		final Jid jid = user.toBareJid();
1665		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jid, affiliation.toString());
1666		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
1667			@Override
1668			public void onIqPacketReceived(Account account, IqPacket packet) {
1669				if (packet.getType() == IqPacket.TYPE.RESULT) {
1670					callback.onAffiliationChangedSuccessful(jid);
1671				} else {
1672					callback.onAffiliationChangeFailed(jid, R.string.could_not_change_affiliation);
1673				}
1674			}
1675		});
1676	}
1677
1678	public void changeAffiliationsInConference(final Conversation conference, MucOptions.Affiliation before, MucOptions.Affiliation after) {
1679		List<Jid> jids = new ArrayList<>();
1680		for (MucOptions.User user : conference.getMucOptions().getUsers()) {
1681			if (user.getAffiliation() == before) {
1682				jids.add(user.getJid());
1683			}
1684		}
1685		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
1686		sendIqPacket(conference.getAccount(), request, null);
1687	}
1688
1689	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role, final OnRoleChanged callback) {
1690		IqPacket request = this.mIqGenerator.changeRole(conference, nick, role.toString());
1691		Log.d(Config.LOGTAG, request.toString());
1692		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
1693			@Override
1694			public void onIqPacketReceived(Account account, IqPacket packet) {
1695				Log.d(Config.LOGTAG, packet.toString());
1696				if (packet.getType() == IqPacket.TYPE.RESULT) {
1697					callback.onRoleChangedSuccessful(nick);
1698				} else {
1699					callback.onRoleChangeFailed(nick, R.string.could_not_change_role);
1700				}
1701			}
1702		});
1703	}
1704
1705	public void disconnect(Account account, boolean force) {
1706		if ((account.getStatus() == Account.State.ONLINE)
1707				|| (account.getStatus() == Account.State.DISABLED)) {
1708			if (!force) {
1709				List<Conversation> conversations = getConversations();
1710				for (Conversation conversation : conversations) {
1711					if (conversation.getAccount() == account) {
1712						if (conversation.getMode() == Conversation.MODE_MULTI) {
1713							leaveMuc(conversation);
1714						} else {
1715							if (conversation.endOtrIfNeeded()) {
1716								Log.d(Config.LOGTAG, account.getJid().toBareJid()
1717										+ ": ended otr session with "
1718										+ conversation.getJid());
1719							}
1720						}
1721					}
1722				}
1723				sendOfflinePresence(account);
1724			}
1725			account.getXmppConnection().disconnect(force);
1726		}
1727	}
1728
1729	@Override
1730	public IBinder onBind(Intent intent) {
1731		return mBinder;
1732	}
1733
1734	public void updateMessage(Message message) {
1735		databaseBackend.updateMessage(message);
1736		updateConversationUi();
1737	}
1738
1739	protected void syncDirtyContacts(Account account) {
1740		for (Contact contact : account.getRoster().getContacts()) {
1741			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
1742				pushContactToServer(contact);
1743			}
1744			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
1745				deleteContactOnServer(contact);
1746			}
1747		}
1748	}
1749
1750	public void createContact(Contact contact) {
1751		SharedPreferences sharedPref = getPreferences();
1752		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1753		if (autoGrant) {
1754			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
1755			contact.setOption(Contact.Options.ASKING);
1756		}
1757		pushContactToServer(contact);
1758	}
1759
1760	public void onOtrSessionEstablished(Conversation conversation) {
1761		final Account account = conversation.getAccount();
1762		final Session otrSession = conversation.getOtrSession();
1763		Log.d(Config.LOGTAG,
1764				account.getJid().toBareJid() + " otr session established with "
1765						+ conversation.getJid() + "/"
1766						+ otrSession.getSessionID().getUserID());
1767		conversation.findUnsentMessagesWithOtrEncryption(new Conversation.OnMessageFound() {
1768
1769			@Override
1770			public void onMessageFound(Message message) {
1771				SessionID id = otrSession.getSessionID();
1772				try {
1773					message.setCounterpart(Jid.fromString(id.getAccountID() + "/" + id.getUserID()));
1774				} catch (InvalidJidException e) {
1775					return;
1776				}
1777				if (message.getType() == Message.TYPE_TEXT) {
1778					MessagePacket outPacket = mMessageGenerator.generateOtrChat(message, true);
1779					if (outPacket != null) {
1780						message.setStatus(Message.STATUS_SEND);
1781						databaseBackend.updateMessage(message);
1782						sendMessagePacket(account, outPacket);
1783					}
1784				} else if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) {
1785					mJingleConnectionManager.createNewConnection(message);
1786				}
1787				updateConversationUi();
1788			}
1789		});
1790	}
1791
1792	public boolean renewSymmetricKey(Conversation conversation) {
1793		Account account = conversation.getAccount();
1794		byte[] symmetricKey = new byte[32];
1795		this.mRandom.nextBytes(symmetricKey);
1796		Session otrSession = conversation.getOtrSession();
1797		if (otrSession != null) {
1798			MessagePacket packet = new MessagePacket();
1799			packet.setType(MessagePacket.TYPE_CHAT);
1800			packet.setFrom(account.getJid());
1801			packet.addChild("private", "urn:xmpp:carbons:2");
1802			packet.addChild("no-copy", "urn:xmpp:hints");
1803			packet.setAttribute("to", otrSession.getSessionID().getAccountID() + "/"
1804					+ otrSession.getSessionID().getUserID());
1805			try {
1806				packet.setBody(otrSession
1807						.transformSending(CryptoHelper.FILETRANSFER
1808								+ CryptoHelper.bytesToHex(symmetricKey))[0]);
1809				sendMessagePacket(account, packet);
1810				conversation.setSymmetricKey(symmetricKey);
1811				return true;
1812			} catch (OtrException e) {
1813				return false;
1814			}
1815		}
1816		return false;
1817	}
1818
1819	public void pushContactToServer(final Contact contact) {
1820		contact.resetOption(Contact.Options.DIRTY_DELETE);
1821		contact.setOption(Contact.Options.DIRTY_PUSH);
1822		final Account account = contact.getAccount();
1823		if (account.getStatus() == Account.State.ONLINE) {
1824			final boolean ask = contact.getOption(Contact.Options.ASKING);
1825			final boolean sendUpdates = contact
1826					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
1827					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
1828			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
1829			iq.query(Xmlns.ROSTER).addChild(contact.asElement());
1830			account.getXmppConnection().sendIqPacket(iq, null);
1831			if (sendUpdates) {
1832				sendPresencePacket(account,
1833						mPresenceGenerator.sendPresenceUpdatesTo(contact));
1834			}
1835			if (ask) {
1836				sendPresencePacket(account,
1837						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
1838			}
1839		}
1840	}
1841
1842	public void publishAvatar(final Account account,
1843							  final Uri image,
1844							  final UiCallback<Avatar> callback) {
1845		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
1846		final int size = Config.AVATAR_SIZE;
1847		final Avatar avatar = getFileBackend()
1848				.getPepAvatar(image, size, format);
1849		if (avatar != null) {
1850			avatar.height = size;
1851			avatar.width = size;
1852			if (format.equals(Bitmap.CompressFormat.WEBP)) {
1853				avatar.type = "image/webp";
1854			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
1855				avatar.type = "image/jpeg";
1856			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
1857				avatar.type = "image/png";
1858			}
1859			if (!getFileBackend().save(avatar)) {
1860				callback.error(R.string.error_saving_avatar, avatar);
1861				return;
1862			}
1863			final IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
1864			this.sendIqPacket(account, packet, new OnIqPacketReceived() {
1865
1866				@Override
1867				public void onIqPacketReceived(Account account, IqPacket result) {
1868					if (result.getType() == IqPacket.TYPE.RESULT) {
1869						final IqPacket packet = XmppConnectionService.this.mIqGenerator
1870								.publishAvatarMetadata(avatar);
1871						sendIqPacket(account, packet, new OnIqPacketReceived() {
1872
1873							@Override
1874							public void onIqPacketReceived(Account account,
1875														   IqPacket result) {
1876								if (result.getType() == IqPacket.TYPE.RESULT) {
1877									if (account.setAvatar(avatar.getFilename())) {
1878										getAvatarService().clear(account);
1879										databaseBackend.updateAccount(account);
1880									}
1881									callback.success(avatar);
1882								} else {
1883									callback.error(
1884											R.string.error_publish_avatar_server_reject,
1885											avatar);
1886								}
1887							}
1888						});
1889					} else {
1890						callback.error(
1891								R.string.error_publish_avatar_server_reject,
1892								avatar);
1893					}
1894				}
1895			});
1896		} else {
1897			callback.error(R.string.error_publish_avatar_converting, null);
1898		}
1899	}
1900
1901	public void fetchAvatar(Account account, Avatar avatar) {
1902		fetchAvatar(account, avatar, null);
1903	}
1904
1905	private static String generateFetchKey(Account account, final Avatar avatar) {
1906		return account.getJid().toBareJid()+"_"+avatar.owner+"_"+avatar.sha1sum;
1907	}
1908
1909	public void fetchAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
1910		final String KEY = generateFetchKey(account, avatar);
1911		synchronized(this.mInProgressAvatarFetches) {
1912			if (this.mInProgressAvatarFetches.contains(KEY)) {
1913				return;
1914			} else {
1915				switch (avatar.origin) {
1916					case PEP:
1917						this.mInProgressAvatarFetches.add(KEY);
1918						fetchAvatarPep(account, avatar, callback);
1919						break;
1920					case VCARD:
1921						this.mInProgressAvatarFetches.add(KEY);
1922						fetchAvatarVcard(account, avatar, callback);
1923						break;
1924				}
1925			}
1926		}
1927	}
1928
1929	private void fetchAvatarPep(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
1930		IqPacket packet = this.mIqGenerator.retrievePepAvatar(avatar);
1931		sendIqPacket(account, packet, new OnIqPacketReceived() {
1932
1933			@Override
1934			public void onIqPacketReceived(Account account, IqPacket result) {
1935				synchronized (mInProgressAvatarFetches) {
1936					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
1937				}
1938				final String ERROR = account.getJid().toBareJid()
1939						+ ": fetching avatar for " + avatar.owner + " failed ";
1940				if (result.getType() == IqPacket.TYPE.RESULT) {
1941					avatar.image = mIqParser.avatarData(result);
1942					if (avatar.image != null) {
1943						if (getFileBackend().save(avatar)) {
1944							if (account.getJid().toBareJid().equals(avatar.owner)) {
1945								if (account.setAvatar(avatar.getFilename())) {
1946									databaseBackend.updateAccount(account);
1947								}
1948								getAvatarService().clear(account);
1949								updateConversationUi();
1950								updateAccountUi();
1951							} else {
1952								Contact contact = account.getRoster()
1953										.getContact(avatar.owner);
1954								contact.setAvatar(avatar);
1955								getAvatarService().clear(contact);
1956								updateConversationUi();
1957								updateRosterUi();
1958							}
1959							if (callback != null) {
1960								callback.success(avatar);
1961							}
1962							Log.d(Config.LOGTAG, account.getJid().toBareJid()
1963									+ ": succesfuly fetched pep avatar for " + avatar.owner);
1964							return;
1965						}
1966					} else {
1967
1968						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
1969					}
1970				} else {
1971					Element error = result.findChild("error");
1972					if (error == null) {
1973						Log.d(Config.LOGTAG, ERROR + "(server error)");
1974					} else {
1975						Log.d(Config.LOGTAG, ERROR + error.toString());
1976					}
1977				}
1978				if (callback != null) {
1979					callback.error(0, null);
1980				}
1981
1982			}
1983		});
1984	}
1985
1986	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
1987		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
1988		this.sendIqPacket(account,packet,new OnIqPacketReceived() {
1989			@Override
1990			public void onIqPacketReceived(Account account, IqPacket packet) {
1991				synchronized(mInProgressAvatarFetches) {
1992					mInProgressAvatarFetches.remove(generateFetchKey(account,avatar));
1993				}
1994				if (packet.getType() == IqPacket.TYPE.RESULT) {
1995					Element vCard = packet.findChild("vCard","vcard-temp");
1996					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
1997					String image = photo != null ? photo.findChildContent("BINVAL") : null;
1998					if (image != null) {
1999						avatar.image = image;
2000						if (getFileBackend().save(avatar)) {
2001							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2002									+ ": successfully fetched vCard avatar for " + avatar.owner);
2003							Contact contact = account.getRoster()
2004									.getContact(avatar.owner);
2005							contact.setAvatar(avatar);
2006							getAvatarService().clear(contact);
2007							updateConversationUi();
2008							updateRosterUi();
2009						}
2010					}
2011				}
2012			}
2013		});
2014	}
2015
2016	public void checkForAvatar(Account account, final UiCallback<Avatar> callback) {
2017		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2018		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2019
2020			@Override
2021			public void onIqPacketReceived(Account account, IqPacket packet) {
2022				if (packet.getType() == IqPacket.TYPE.RESULT) {
2023					Element pubsub = packet.findChild("pubsub",
2024							"http://jabber.org/protocol/pubsub");
2025					if (pubsub != null) {
2026						Element items = pubsub.findChild("items");
2027						if (items != null) {
2028							Avatar avatar = Avatar.parseMetadata(items);
2029							if (avatar != null) {
2030								avatar.owner = account.getJid().toBareJid();
2031								if (fileBackend.isAvatarCached(avatar)) {
2032									if (account.setAvatar(avatar.getFilename())) {
2033										databaseBackend.updateAccount(account);
2034									}
2035									getAvatarService().clear(account);
2036									callback.success(avatar);
2037								} else {
2038									fetchAvatarPep(account, avatar, callback);
2039								}
2040								return;
2041							}
2042						}
2043					}
2044				}
2045				callback.error(0, null);
2046			}
2047		});
2048	}
2049
2050	public void deleteContactOnServer(Contact contact) {
2051		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
2052		contact.resetOption(Contact.Options.DIRTY_PUSH);
2053		contact.setOption(Contact.Options.DIRTY_DELETE);
2054		Account account = contact.getAccount();
2055		if (account.getStatus() == Account.State.ONLINE) {
2056			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2057			Element item = iq.query(Xmlns.ROSTER).addChild("item");
2058			item.setAttribute("jid", contact.getJid().toString());
2059			item.setAttribute("subscription", "remove");
2060			account.getXmppConnection().sendIqPacket(iq, null);
2061		}
2062	}
2063
2064	public void updateConversation(Conversation conversation) {
2065		this.databaseBackend.updateConversation(conversation);
2066	}
2067
2068	public void reconnectAccount(final Account account, final boolean force) {
2069		synchronized (account) {
2070			if (account.getXmppConnection() != null) {
2071				disconnect(account, force);
2072			}
2073			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2074
2075				synchronized (this.mInProgressAvatarFetches) {
2076					for(Iterator<String> iterator = this.mInProgressAvatarFetches.iterator(); iterator.hasNext();) {
2077						final String KEY = iterator.next();
2078						if (KEY.startsWith(account.getJid().toBareJid()+"_")) {
2079							iterator.remove();
2080						}
2081					}
2082				}
2083
2084				if (account.getXmppConnection() == null) {
2085					account.setXmppConnection(createConnection(account));
2086				}
2087				Thread thread = new Thread(account.getXmppConnection());
2088				thread.start();
2089				scheduleWakeUpCall(Config.CONNECT_TIMEOUT, account.getUuid().hashCode());
2090			} else {
2091				account.getRoster().clearPresences();
2092				account.setXmppConnection(null);
2093			}
2094		}
2095	}
2096
2097	public void reconnectAccountInBackground(final Account account) {
2098		new Thread(new Runnable() {
2099			@Override
2100			public void run() {
2101				reconnectAccount(account,false);
2102			}
2103		}).start();
2104	}
2105
2106	public void invite(Conversation conversation, Jid contact) {
2107		Log.d(Config.LOGTAG,conversation.getAccount().getJid().toBareJid()+": inviting "+contact+" to "+conversation.getJid().toBareJid());
2108		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
2109		sendMessagePacket(conversation.getAccount(), packet);
2110	}
2111
2112	public void directInvite(Conversation conversation, Jid jid) {
2113		MessagePacket packet = mMessageGenerator.directInvite(conversation,jid);
2114		sendMessagePacket(conversation.getAccount(),packet);
2115	}
2116
2117	public void resetSendingToWaiting(Account account) {
2118		for (Conversation conversation : getConversations()) {
2119			if (conversation.getAccount() == account) {
2120				conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
2121
2122					@Override
2123					public void onMessageFound(Message message) {
2124						markMessage(message, Message.STATUS_WAITING);
2125					}
2126				});
2127			}
2128		}
2129	}
2130
2131	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status) {
2132		if (uuid == null) {
2133			return null;
2134		}
2135		for (Conversation conversation : getConversations()) {
2136			if (conversation.getJid().toBareJid().equals(recipient) && conversation.getAccount() == account) {
2137				final Message message = conversation.findSentMessageWithUuid(uuid);
2138				if (message != null) {
2139					markMessage(message, status);
2140				}
2141				return message;
2142			}
2143		}
2144		return null;
2145	}
2146
2147	public boolean markMessage(Conversation conversation, String uuid,
2148							   int status) {
2149		if (uuid == null) {
2150			return false;
2151		} else {
2152			Message message = conversation.findSentMessageWithUuid(uuid);
2153			if (message != null) {
2154				markMessage(message, status);
2155				return true;
2156			} else {
2157				return false;
2158			}
2159		}
2160	}
2161
2162	public void markMessage(Message message, int status) {
2163		if (status == Message.STATUS_SEND_FAILED
2164				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
2165				.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
2166			return;
2167		}
2168		message.setStatus(status);
2169		databaseBackend.updateMessage(message);
2170		updateConversationUi();
2171	}
2172
2173	public SharedPreferences getPreferences() {
2174		return PreferenceManager
2175				.getDefaultSharedPreferences(getApplicationContext());
2176	}
2177
2178	public boolean forceEncryption() {
2179		return getPreferences().getBoolean("force_encryption", false);
2180	}
2181
2182	public boolean confirmMessages() {
2183		return getPreferences().getBoolean("confirm_messages", true);
2184	}
2185
2186	public boolean sendChatStates() {
2187		return getPreferences().getBoolean("chat_states", false);
2188	}
2189
2190	public boolean saveEncryptedMessages() {
2191		return !getPreferences().getBoolean("dont_save_encrypted", false);
2192	}
2193
2194	public boolean indicateReceived() {
2195		return getPreferences().getBoolean("indicate_received", false);
2196	}
2197
2198	public int unreadCount() {
2199		int count = 0;
2200		for(Conversation conversation : getConversations()) {
2201			count += conversation.unreadCount();
2202		}
2203		return count;
2204	}
2205
2206	public void updateConversationUi() {
2207		if (mOnConversationUpdate != null) {
2208			mOnConversationUpdate.onConversationUpdate();
2209		}
2210	}
2211
2212	public void updateAccountUi() {
2213		if (mOnAccountUpdate != null) {
2214			mOnAccountUpdate.onAccountUpdate();
2215		}
2216	}
2217
2218	public void updateRosterUi() {
2219		if (mOnRosterUpdate != null) {
2220			mOnRosterUpdate.onRosterUpdate();
2221		}
2222	}
2223
2224	public void updateBlocklistUi(final OnUpdateBlocklist.Status status) {
2225		if (mOnUpdateBlocklist != null) {
2226			mOnUpdateBlocklist.OnUpdateBlocklist(status);
2227		}
2228	}
2229
2230	public void updateMucRosterUi() {
2231		if (mOnMucRosterUpdate != null) {
2232			mOnMucRosterUpdate.onMucRosterUpdate();
2233		}
2234	}
2235
2236	public Account findAccountByJid(final Jid accountJid) {
2237		for (Account account : this.accounts) {
2238			if (account.getJid().toBareJid().equals(accountJid.toBareJid())) {
2239				return account;
2240			}
2241		}
2242		return null;
2243	}
2244
2245	public Conversation findConversationByUuid(String uuid) {
2246		for (Conversation conversation : getConversations()) {
2247			if (conversation.getUuid().equals(uuid)) {
2248				return conversation;
2249			}
2250		}
2251		return null;
2252	}
2253
2254	public void markRead(final Conversation conversation) {
2255		mNotificationService.clear(conversation);
2256		conversation.markRead();
2257	}
2258
2259	public void sendReadMarker(final Conversation conversation) {
2260		final Message markable = conversation.getLatestMarkableMessage();
2261		this.markRead(conversation);
2262		if (confirmMessages() && markable != null && markable.getRemoteMsgId() != null) {
2263			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": sending read marker to " + markable.getCounterpart().toString());
2264			Account account = conversation.getAccount();
2265			final Jid to = markable.getCounterpart();
2266			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId());
2267			this.sendMessagePacket(conversation.getAccount(), packet);
2268		}
2269		updateConversationUi();
2270	}
2271
2272	public SecureRandom getRNG() {
2273		return this.mRandom;
2274	}
2275
2276	public MemorizingTrustManager getMemorizingTrustManager() {
2277		return this.mMemorizingTrustManager;
2278	}
2279
2280	public void setMemorizingTrustManager(MemorizingTrustManager trustManager) {
2281		this.mMemorizingTrustManager = trustManager;
2282	}
2283
2284	public void updateMemorizingTrustmanager() {
2285		final MemorizingTrustManager tm;
2286		final boolean dontTrustSystemCAs = getPreferences().getBoolean("dont_trust_system_cas", false);
2287		if (dontTrustSystemCAs) {
2288			 tm = new MemorizingTrustManager(getApplicationContext(), null);
2289		} else {
2290			tm = new MemorizingTrustManager(getApplicationContext());
2291		}
2292		setMemorizingTrustManager(tm);
2293	}
2294
2295	public PowerManager getPowerManager() {
2296		return this.pm;
2297	}
2298
2299	public LruCache<String, Bitmap> getBitmapCache() {
2300		return this.mBitmapCache;
2301	}
2302
2303	public void syncRosterToDisk(final Account account) {
2304		new Thread(new Runnable() {
2305
2306			@Override
2307			public void run() {
2308				databaseBackend.writeRoster(account.getRoster());
2309			}
2310		}).start();
2311
2312	}
2313
2314	public List<String> getKnownHosts() {
2315		final List<String> hosts = new ArrayList<>();
2316		for (final Account account : getAccounts()) {
2317			if (!hosts.contains(account.getServer().toString())) {
2318				hosts.add(account.getServer().toString());
2319			}
2320			for (final Contact contact : account.getRoster().getContacts()) {
2321				if (contact.showInRoster()) {
2322					final String server = contact.getServer().toString();
2323					if (server != null && !hosts.contains(server)) {
2324						hosts.add(server);
2325					}
2326				}
2327			}
2328		}
2329		return hosts;
2330	}
2331
2332	public List<String> getKnownConferenceHosts() {
2333		final ArrayList<String> mucServers = new ArrayList<>();
2334		for (final Account account : accounts) {
2335			if (account.getXmppConnection() != null) {
2336				final String server = account.getXmppConnection().getMucServer();
2337				if (server != null && !mucServers.contains(server)) {
2338					mucServers.add(server);
2339				}
2340			}
2341		}
2342		return mucServers;
2343	}
2344
2345	public void sendMessagePacket(Account account, MessagePacket packet) {
2346		XmppConnection connection = account.getXmppConnection();
2347		if (connection != null) {
2348			connection.sendMessagePacket(packet);
2349		}
2350	}
2351
2352	public void sendPresencePacket(Account account, PresencePacket packet) {
2353		XmppConnection connection = account.getXmppConnection();
2354		if (connection != null) {
2355			connection.sendPresencePacket(packet);
2356		}
2357	}
2358
2359	public void sendIqPacket(final Account account, final IqPacket packet, final OnIqPacketReceived callback) {
2360		final XmppConnection connection = account.getXmppConnection();
2361		if (connection != null) {
2362			connection.sendIqPacket(packet, callback);
2363		}
2364	}
2365
2366	public void sendPresence(final Account account) {
2367		sendPresencePacket(account, mPresenceGenerator.sendPresence(account));
2368	}
2369
2370	public void sendOfflinePresence(final Account account) {
2371		sendPresencePacket(account, mPresenceGenerator.sendOfflinePresence(account));
2372	}
2373
2374	public MessageGenerator getMessageGenerator() {
2375		return this.mMessageGenerator;
2376	}
2377
2378	public PresenceGenerator getPresenceGenerator() {
2379		return this.mPresenceGenerator;
2380	}
2381
2382	public IqGenerator getIqGenerator() {
2383		return this.mIqGenerator;
2384	}
2385
2386	public IqParser getIqParser() {
2387		return this.mIqParser;
2388	}
2389
2390	public JingleConnectionManager getJingleConnectionManager() {
2391		return this.mJingleConnectionManager;
2392	}
2393
2394	public MessageArchiveService getMessageArchiveService() {
2395		return this.mMessageArchiveService;
2396	}
2397
2398	public List<Contact> findContacts(Jid jid) {
2399		ArrayList<Contact> contacts = new ArrayList<>();
2400		for (Account account : getAccounts()) {
2401			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2402				Contact contact = account.getRoster().getContactFromRoster(jid);
2403				if (contact != null) {
2404					contacts.add(contact);
2405				}
2406			}
2407		}
2408		return contacts;
2409	}
2410
2411	public NotificationService getNotificationService() {
2412		return this.mNotificationService;
2413	}
2414
2415	public HttpConnectionManager getHttpConnectionManager() {
2416		return this.mHttpConnectionManager;
2417	}
2418
2419	public void resendFailedMessages(final Message message) {
2420		final Collection<Message> messages = new ArrayList<>();
2421		Message current = message;
2422		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
2423			messages.add(current);
2424			if (current.mergeable(current.next())) {
2425				current = current.next();
2426			} else {
2427				break;
2428			}
2429		}
2430		for (final Message msg : messages) {
2431			markMessage(msg, Message.STATUS_WAITING);
2432			this.resendMessage(msg);
2433		}
2434	}
2435
2436	public void clearConversationHistory(final Conversation conversation) {
2437		conversation.clearMessages();
2438		conversation.setHasMessagesLeftOnServer(false); //avoid messages getting loaded through mam
2439		new Thread(new Runnable() {
2440			@Override
2441			public void run() {
2442				databaseBackend.deleteMessagesInConversation(conversation);
2443			}
2444		}).start();
2445	}
2446
2447	public void sendBlockRequest(final Blockable blockable) {
2448		if (blockable != null && blockable.getBlockedJid() != null) {
2449			final Jid jid = blockable.getBlockedJid();
2450			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetBlockRequest(jid), new OnIqPacketReceived() {
2451
2452				@Override
2453				public void onIqPacketReceived(final Account account, final IqPacket packet) {
2454					if (packet.getType() == IqPacket.TYPE.RESULT) {
2455						account.getBlocklist().add(jid);
2456						updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
2457					}
2458				}
2459			});
2460		}
2461	}
2462
2463	public void sendUnblockRequest(final Blockable blockable) {
2464		if (blockable != null && blockable.getJid() != null) {
2465			final Jid jid = blockable.getBlockedJid();
2466			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetUnblockRequest(jid), new OnIqPacketReceived() {
2467				@Override
2468				public void onIqPacketReceived(final Account account, final IqPacket packet) {
2469					if (packet.getType() == IqPacket.TYPE.RESULT) {
2470						account.getBlocklist().remove(jid);
2471						updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
2472					}
2473				}
2474			});
2475		}
2476	}
2477
2478	public interface OnMoreMessagesLoaded {
2479		public void onMoreMessagesLoaded(int count, Conversation conversation);
2480
2481		public void informUser(int r);
2482	}
2483
2484	public interface OnAccountPasswordChanged {
2485		public void onPasswordChangeSucceeded();
2486
2487		public void onPasswordChangeFailed();
2488	}
2489
2490	public interface OnAffiliationChanged {
2491		public void onAffiliationChangedSuccessful(Jid jid);
2492
2493		public void onAffiliationChangeFailed(Jid jid, int resId);
2494	}
2495
2496	public interface OnRoleChanged {
2497		public void onRoleChangedSuccessful(String nick);
2498
2499		public void onRoleChangeFailed(String nick, int resid);
2500	}
2501
2502	public interface OnConversationUpdate {
2503		public void onConversationUpdate();
2504	}
2505
2506	public interface OnAccountUpdate {
2507		public void onAccountUpdate();
2508	}
2509
2510	public interface OnRosterUpdate {
2511		public void onRosterUpdate();
2512	}
2513
2514	public interface OnMucRosterUpdate {
2515		public void onMucRosterUpdate();
2516	}
2517
2518	public interface OnConferenceOptionsPushed {
2519		public void onPushSucceeded();
2520
2521		public void onPushFailed();
2522	}
2523
2524	public class XmppConnectionBinder extends Binder {
2525		public XmppConnectionService getService() {
2526			return XmppConnectionService.this;
2527		}
2528	}
2529}