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;
 103import me.leolin.shortcutbadger.ShortcutBadger;
 104
 105public class XmppConnectionService extends Service implements OnPhoneContactsLoadedListener {
 106
 107	public static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 108	public static final String ACTION_DISABLE_FOREGROUND = "disable_foreground";
 109	private static final String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
 110	public static final String ACTION_TRY_AGAIN = "try_again";
 111	public static final String ACTION_DISABLE_ACCOUNT = "disable_account";
 112	private ContentObserver contactObserver = new ContentObserver(null) {
 113		@Override
 114		public void onChange(boolean selfChange) {
 115			super.onChange(selfChange);
 116			Intent intent = new Intent(getApplicationContext(),
 117					XmppConnectionService.class);
 118			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 119			startService(intent);
 120		}
 121	};
 122	private final IBinder mBinder = new XmppConnectionBinder();
 123	private final List<Conversation> conversations = new CopyOnWriteArrayList<>();
 124	private final FileObserver fileObserver = new FileObserver(
 125			FileBackend.getConversationsImageDirectory()) {
 126
 127		@Override
 128		public void onEvent(int event, String path) {
 129			if (event == FileObserver.DELETE) {
 130				markFileDeleted(path.split("\\.")[0]);
 131			}
 132		}
 133	};
 134	private final OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 135
 136		@Override
 137		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 138			mJingleConnectionManager.deliverPacket(account, packet);
 139		}
 140	};
 141	private final OnBindListener mOnBindListener = new OnBindListener() {
 142
 143		@Override
 144		public void onBind(final Account account) {
 145			account.getRoster().clearPresences();
 146			account.pendingConferenceJoins.clear();
 147			account.pendingConferenceLeaves.clear();
 148			fetchRosterFromServer(account);
 149			fetchBookmarks(account);
 150			sendPresence(account);
 151			connectMultiModeConversations(account);
 152			updateConversationUi();
 153		}
 154	};
 155	private final OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 156
 157		@Override
 158		public void onMessageAcknowledged(Account account, String uuid) {
 159			for (final Conversation conversation : getConversations()) {
 160				if (conversation.getAccount() == account) {
 161					Message message = conversation.findUnsentMessageWithUuid(uuid);
 162					if (message != null) {
 163						markMessage(message, Message.STATUS_SEND);
 164						if (conversation.setLastMessageTransmitted(System.currentTimeMillis())) {
 165							databaseBackend.updateConversation(conversation);
 166						}
 167					}
 168				}
 169			}
 170		}
 171	};
 172	private final IqGenerator mIqGenerator = new IqGenerator(this);
 173	public DatabaseBackend databaseBackend;
 174	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 175
 176		@Override
 177		public void onContactStatusChanged(Contact contact, boolean online) {
 178			Conversation conversation = find(getConversations(), contact);
 179			if (conversation != null) {
 180				if (online) {
 181					conversation.endOtrIfNeeded();
 182					if (contact.getPresences().size() == 1) {
 183						sendUnsentMessages(conversation);
 184					}
 185				} else {
 186					if (contact.getPresences().size() >= 1) {
 187						if (conversation.hasValidOtrSession()) {
 188							String otrResource = conversation.getOtrSession().getSessionID().getUserID();
 189							if (!(Arrays.asList(contact.getPresences().asStringArray()).contains(otrResource))) {
 190								conversation.endOtrIfNeeded();
 191							}
 192						}
 193					} else {
 194						conversation.endOtrIfNeeded();
 195					}
 196				}
 197			}
 198		}
 199	};
 200	private FileBackend fileBackend = new FileBackend(this);
 201	private MemorizingTrustManager mMemorizingTrustManager;
 202	private NotificationService mNotificationService = new NotificationService(
 203			this);
 204	private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 205	private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 206	private IqParser mIqParser = new IqParser(this);
 207	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 208	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 209	private List<Account> accounts;
 210	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 211			this);
 212	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 213			this);
 214	private AvatarService mAvatarService = new AvatarService(this);
 215	private final List<String> mInProgressAvatarFetches = new ArrayList<>();
 216	private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 217	private OnConversationUpdate mOnConversationUpdate = null;
 218	private Integer convChangedListenerCount = 0;
 219	private OnAccountUpdate mOnAccountUpdate = null;
 220	private OnStatusChanged statusListener = new OnStatusChanged() {
 221
 222		@Override
 223		public void onStatusChanged(Account account) {
 224			XmppConnection connection = account.getXmppConnection();
 225			if (mOnAccountUpdate != null) {
 226				mOnAccountUpdate.onAccountUpdate();
 227			}
 228			if (account.getStatus() == Account.State.ONLINE) {
 229				for (Conversation conversation : account.pendingConferenceLeaves) {
 230					leaveMuc(conversation);
 231				}
 232				for (Conversation conversation : account.pendingConferenceJoins) {
 233					joinMuc(conversation);
 234				}
 235				mMessageArchiveService.executePendingQueries(account);
 236				mJingleConnectionManager.cancelInTransmission();
 237				List<Conversation> conversations = getConversations();
 238				for (Conversation conversation : conversations) {
 239					if (conversation.getAccount() == account) {
 240						conversation.startOtrIfNeeded();
 241						sendUnsentMessages(conversation);
 242					}
 243				}
 244				if (connection != null && connection.getFeatures().csi()) {
 245					if (checkListeners()) {
 246						Log.d(Config.LOGTAG, account.getJid().toBareJid()
 247								+ " sending csi//inactive");
 248						connection.sendInactive();
 249					} else {
 250						Log.d(Config.LOGTAG, account.getJid().toBareJid()
 251								+ " sending csi//active");
 252						connection.sendActive();
 253					}
 254				}
 255				syncDirtyContacts(account);
 256				scheduleWakeUpCall(Config.PING_MAX_INTERVAL,account.getUuid().hashCode());
 257			} else if (account.getStatus() == Account.State.OFFLINE) {
 258				resetSendingToWaiting(account);
 259				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 260					int timeToReconnect = mRandom.nextInt(50) + 10;
 261					scheduleWakeUpCall(timeToReconnect,account.getUuid().hashCode());
 262				}
 263			} else if (account.getStatus() == Account.State.REGISTRATION_SUCCESSFUL) {
 264				databaseBackend.updateAccount(account);
 265				reconnectAccount(account, true);
 266			} else if ((account.getStatus() != Account.State.CONNECTING)
 267					&& (account.getStatus() != Account.State.NO_INTERNET)) {
 268				if (connection != null) {
 269					int next = connection.getTimeToNextAttempt();
 270					Log.d(Config.LOGTAG, account.getJid().toBareJid()
 271							+ ": error connecting account. try again in "
 272							+ next + "s for the "
 273							+ (connection.getAttempt() + 1) + " time");
 274					scheduleWakeUpCall(next,account.getUuid().hashCode());
 275				}
 276					}
 277			getNotificationService().updateErrorNotification();
 278		}
 279	};
 280	private int accountChangedListenerCount = 0;
 281	private OnRosterUpdate mOnRosterUpdate = null;
 282	private OnUpdateBlocklist mOnUpdateBlocklist = null;
 283	private int updateBlocklistListenerCount = 0;
 284	private int rosterChangedListenerCount = 0;
 285	private OnMucRosterUpdate mOnMucRosterUpdate = null;
 286	private int mucRosterChangedListenerCount = 0;
 287	private SecureRandom mRandom;
 288	private OpenPgpServiceConnection pgpServiceConnection;
 289	private PgpEngine mPgpEngine = null;
 290	private WakeLock wakeLock;
 291	private PowerManager pm;
 292	private LruCache<String, Bitmap> mBitmapCache;
 293	private Thread mPhoneContactMergerThread;
 294
 295	private boolean mRestoredFromDatabase = false;
 296	public boolean areMessagesInitialized() {
 297		return this.mRestoredFromDatabase;
 298	}
 299
 300	public PgpEngine getPgpEngine() {
 301		if (pgpServiceConnection.isBound()) {
 302			if (this.mPgpEngine == null) {
 303				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 304							getApplicationContext(),
 305							pgpServiceConnection.getService()), this);
 306			}
 307			return mPgpEngine;
 308		} else {
 309			return null;
 310		}
 311
 312	}
 313
 314	public FileBackend getFileBackend() {
 315		return this.fileBackend;
 316	}
 317
 318	public AvatarService getAvatarService() {
 319		return this.mAvatarService;
 320	}
 321
 322	public void attachLocationToConversation(final Conversation conversation,
 323											 final Uri uri,
 324											 final UiCallback<Message> callback) {
 325		int encryption = conversation.getNextEncryption(forceEncryption());
 326		if (encryption == Message.ENCRYPTION_PGP) {
 327			encryption = Message.ENCRYPTION_DECRYPTED;
 328		}
 329		Message message = new Message(conversation,uri.toString(),encryption);
 330		if (conversation.getNextCounterpart() != null) {
 331			message.setCounterpart(conversation.getNextCounterpart());
 332		}
 333		if (encryption == Message.ENCRYPTION_DECRYPTED) {
 334			getPgpEngine().encrypt(message, callback);
 335		} else {
 336			callback.success(message);
 337		}
 338	}
 339
 340	public void attachFileToConversation(final Conversation conversation,
 341			final Uri uri,
 342			final UiCallback<Message> callback) {
 343		final Message message;
 344		if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 345			message = new Message(conversation, "",
 346					Message.ENCRYPTION_DECRYPTED);
 347		} else {
 348			message = new Message(conversation, "",
 349					conversation.getNextEncryption(forceEncryption()));
 350		}
 351		message.setCounterpart(conversation.getNextCounterpart());
 352		message.setType(Message.TYPE_FILE);
 353		String path = getFileBackend().getOriginalPath(uri);
 354		if (path!=null) {
 355			message.setRelativeFilePath(path);
 356			getFileBackend().updateFileParams(message);
 357			if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 358				getPgpEngine().encrypt(message, callback);
 359			} else {
 360				callback.success(message);
 361			}
 362		} else {
 363			new Thread(new Runnable() {
 364				@Override
 365				public void run() {
 366					try {
 367						getFileBackend().copyFileToPrivateStorage(message, uri);
 368						getFileBackend().updateFileParams(message);
 369						if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 370							getPgpEngine().encrypt(message, callback);
 371						} else {
 372							callback.success(message);
 373						}
 374					} catch (FileBackend.FileCopyException e) {
 375						callback.error(e.getResId(),message);
 376					}
 377				}
 378			}).start();
 379
 380		}
 381	}
 382
 383	public void attachImageToConversation(final Conversation conversation,
 384			final Uri uri, final UiCallback<Message> callback) {
 385		final Message message;
 386		if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 387			message = new Message(conversation, "",
 388					Message.ENCRYPTION_DECRYPTED);
 389		} else {
 390			message = new Message(conversation, "",
 391					conversation.getNextEncryption(forceEncryption()));
 392		}
 393		message.setCounterpart(conversation.getNextCounterpart());
 394		message.setType(Message.TYPE_IMAGE);
 395		new Thread(new Runnable() {
 396
 397			@Override
 398			public void run() {
 399				try {
 400					getFileBackend().copyImageToPrivateStorage(message, uri);
 401					if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 402						getPgpEngine().encrypt(message, callback);
 403					} else {
 404						callback.success(message);
 405					}
 406				} catch (final FileBackend.FileCopyException e) {
 407					callback.error(e.getResId(), message);
 408				}
 409			}
 410		}).start();
 411	}
 412
 413	public Conversation find(Bookmark bookmark) {
 414		return find(bookmark.getAccount(), bookmark.getJid());
 415	}
 416
 417	public Conversation find(final Account account, final Jid jid) {
 418		return find(getConversations(), account, jid);
 419	}
 420
 421	@Override
 422	public int onStartCommand(Intent intent, int flags, int startId) {
 423		final String action = intent == null ? null : intent.getAction();
 424		if (action != null) {
 425			switch (action) {
 426				case ConnectivityManager.CONNECTIVITY_ACTION:
 427					if (hasInternetConnection() && Config.RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE) {
 428						resetAllAttemptCounts(true);
 429					}
 430					break;
 431				case ACTION_MERGE_PHONE_CONTACTS:
 432					if (mRestoredFromDatabase) {
 433						PhoneHelper.loadPhoneContacts(getApplicationContext(),
 434								new CopyOnWriteArrayList<Bundle>(),
 435								this);
 436					}
 437					return START_STICKY;
 438				case Intent.ACTION_SHUTDOWN:
 439					logoutAndSave();
 440					return START_NOT_STICKY;
 441				case ACTION_CLEAR_NOTIFICATION:
 442					mNotificationService.clear();
 443					break;
 444				case ACTION_DISABLE_FOREGROUND:
 445					getPreferences().edit().putBoolean("keep_foreground_service",false).commit();
 446					toggleForegroundService();
 447					break;
 448				case ACTION_TRY_AGAIN:
 449					resetAllAttemptCounts(false);
 450					break;
 451				case ACTION_DISABLE_ACCOUNT:
 452					try {
 453						String jid = intent.getStringExtra("account");
 454						Account account = jid == null ? null : findAccountByJid(Jid.fromString(jid));
 455						if (account != null) {
 456							account.setOption(Account.OPTION_DISABLED,true);
 457							updateAccount(account);
 458						}
 459					} catch (final InvalidJidException ignored) {
 460						break;
 461					}
 462					break;
 463			}
 464		}
 465		this.wakeLock.acquire();
 466
 467		for (Account account : accounts) {
 468			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 469				if (!hasInternetConnection()) {
 470					account.setStatus(Account.State.NO_INTERNET);
 471					if (statusListener != null) {
 472						statusListener.onStatusChanged(account);
 473					}
 474				} else {
 475					if (account.getStatus() == Account.State.NO_INTERNET) {
 476						account.setStatus(Account.State.OFFLINE);
 477						if (statusListener != null) {
 478							statusListener.onStatusChanged(account);
 479						}
 480					}
 481					if (account.getStatus() == Account.State.ONLINE) {
 482						long lastReceived = account.getXmppConnection().getLastPacketReceived();
 483						long lastSent = account.getXmppConnection().getLastPingSent();
 484						long pingInterval = "ui".equals(action) ? Config.PING_MIN_INTERVAL * 1000 : Config.PING_MAX_INTERVAL * 1000;
 485						long msToNextPing = (Math.max(lastReceived,lastSent) + pingInterval) - SystemClock.elapsedRealtime();
 486						long pingTimeoutIn = (lastSent + Config.PING_TIMEOUT * 1000) - SystemClock.elapsedRealtime();
 487						if (lastSent > lastReceived) {
 488							if (pingTimeoutIn < 0) {
 489								long age = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000;
 490								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ping timeout. connection age was: "+age+"s");
 491								this.reconnectAccount(account, true);
 492							} else {
 493								int secs = (int) (pingTimeoutIn / 1000);
 494								this.scheduleWakeUpCall(secs,account.getUuid().hashCode());
 495							}
 496						} else if (msToNextPing <= 0) {
 497							account.getXmppConnection().sendPing();
 498							Log.d(Config.LOGTAG, account.getJid().toBareJid()+" send ping");
 499							this.scheduleWakeUpCall(Config.PING_TIMEOUT,account.getUuid().hashCode());
 500						} else {
 501							this.scheduleWakeUpCall((int) (msToNextPing / 1000), account.getUuid().hashCode());
 502						}
 503					} else if (account.getStatus() == Account.State.OFFLINE) {
 504						reconnectAccount(account,true);
 505					} else if (account.getStatus() == Account.State.CONNECTING) {
 506						long timeout = Config.CONNECT_TIMEOUT - ((SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000);
 507						if (timeout < 0) {
 508							Log.d(Config.LOGTAG, account.getJid() + ": time out during connect reconnecting");
 509							reconnectAccount(account, true);
 510						} else {
 511							scheduleWakeUpCall((int) timeout,account.getUuid().hashCode());
 512						}
 513					} else {
 514						if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 515							reconnectAccount(account, true);
 516						}
 517					}
 518
 519				}
 520				if (mOnAccountUpdate != null) {
 521					mOnAccountUpdate.onAccountUpdate();
 522				}
 523			}
 524		}
 525		/*PowerManager pm = (PowerManager) this.getSystemService(Context.POWER_SERVICE);
 526			if (!pm.isScreenOn()) {
 527			removeStaleListeners();
 528			}*/
 529		if (wakeLock.isHeld()) {
 530			try {
 531				wakeLock.release();
 532			} catch (final RuntimeException ignored) {
 533			}
 534		}
 535		return START_STICKY;
 536	}
 537
 538	private void resetAllAttemptCounts(boolean reallyAll) {
 539		Log.d(Config.LOGTAG,"resetting all attepmt counts");
 540		for(Account account : accounts) {
 541			if (account.hasErrorStatus() || reallyAll) {
 542				final XmppConnection connection = account.getXmppConnection();
 543				if (connection != null) {
 544					connection.resetAttemptCount();
 545				}
 546			}
 547		}
 548	}
 549
 550	public boolean hasInternetConnection() {
 551		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 552			.getSystemService(Context.CONNECTIVITY_SERVICE);
 553		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 554		return activeNetwork != null && activeNetwork.isConnected();
 555	}
 556
 557	@SuppressLint("TrulyRandom")
 558	@Override
 559	public void onCreate() {
 560		ExceptionHelper.init(getApplicationContext());
 561		PRNGFixes.apply();
 562		this.mRandom = new SecureRandom();
 563		updateMemorizingTrustmanager();
 564		final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
 565		final int cacheSize = maxMemory / 8;
 566		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
 567			@Override
 568			protected int sizeOf(final String key, final Bitmap bitmap) {
 569				return bitmap.getByteCount() / 1024;
 570			}
 571		};
 572
 573		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 574		this.accounts = databaseBackend.getAccounts();
 575
 576		for (final Account account : this.accounts) {
 577			account.initOtrEngine(this);
 578		}
 579		restoreFromDatabase();
 580
 581		getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 582		this.fileObserver.startWatching();
 583		this.pgpServiceConnection = new OpenPgpServiceConnection(getApplicationContext(), "org.sufficientlysecure.keychain");
 584		this.pgpServiceConnection.bindToService();
 585
 586		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 587		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,"XmppConnectionService");
 588		toggleForegroundService();
 589	}
 590
 591	public void toggleForegroundService() {
 592		if (getPreferences().getBoolean("keep_foreground_service",false)) {
 593			startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, this.mNotificationService.createForegroundNotification());
 594		} else {
 595			stopForeground(true);
 596		}
 597	}
 598
 599	@Override
 600	public void onTaskRemoved(final Intent rootIntent) {
 601		super.onTaskRemoved(rootIntent);
 602		if (!getPreferences().getBoolean("keep_foreground_service",false)) {
 603			this.logoutAndSave();
 604		}
 605	}
 606
 607	private void logoutAndSave() {
 608		for (final Account account : accounts) {
 609			databaseBackend.writeRoster(account.getRoster());
 610			if (account.getXmppConnection() != null) {
 611				disconnect(account, false);
 612			}
 613		}
 614		Context context = getApplicationContext();
 615		AlarmManager alarmManager = (AlarmManager) context
 616			.getSystemService(Context.ALARM_SERVICE);
 617		Intent intent = new Intent(context, EventReceiver.class);
 618		alarmManager.cancel(PendingIntent.getBroadcast(context, 0, intent, 0));
 619		Log.d(Config.LOGTAG, "good bye");
 620		stopSelf();
 621	}
 622
 623	protected void scheduleWakeUpCall(int seconds, int requestCode) {
 624		final long timeToWake = SystemClock.elapsedRealtime() + (seconds < 0 ? 1 : seconds + 1) * 1000;
 625
 626		Context context = getApplicationContext();
 627		AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
 628
 629		Intent intent = new Intent(context, EventReceiver.class);
 630		intent.setAction("ping");
 631		PendingIntent alarmIntent = PendingIntent.getBroadcast(context, requestCode, intent, 0);
 632		alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, alarmIntent);
 633	}
 634
 635	public XmppConnection createConnection(final Account account) {
 636		final SharedPreferences sharedPref = getPreferences();
 637		account.setResource(sharedPref.getString("resource", "mobile")
 638				.toLowerCase(Locale.getDefault()));
 639		final XmppConnection connection = new XmppConnection(account, this);
 640		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
 641		connection.setOnStatusChangedListener(this.statusListener);
 642		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
 643		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
 644		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 645		connection.setOnBindListener(this.mOnBindListener);
 646		connection.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
 647		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mMessageArchiveService);
 648		return connection;
 649	}
 650
 651	public void sendChatState(Conversation conversation) {
 652		if (sendChatStates()) {
 653			MessagePacket packet = mMessageGenerator.generateChatState(conversation);
 654			sendMessagePacket(conversation.getAccount(), packet);
 655		}
 656	}
 657
 658	public void sendMessage(final Message message) {
 659		final Account account = message.getConversation().getAccount();
 660		account.deactivateGracePeriod();
 661		final Conversation conv = message.getConversation();
 662		MessagePacket packet = null;
 663		boolean saveInDb = true;
 664		boolean send = false;
 665		if (account.getStatus() == Account.State.ONLINE
 666				&& account.getXmppConnection() != null) {
 667			if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) {
 668				if (message.getCounterpart() != null) {
 669					if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 670						if (!conv.hasValidOtrSession()) {
 671							conv.startOtrSession(message.getCounterpart().getResourcepart(),true);
 672							message.setStatus(Message.STATUS_WAITING);
 673						} else if (conv.hasValidOtrSession()
 674								&& conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 675							mJingleConnectionManager
 676								.createNewConnection(message);
 677								}
 678					} else {
 679						mJingleConnectionManager.createNewConnection(message);
 680					}
 681				} else {
 682					if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 683						conv.startOtrIfNeeded();
 684					}
 685					message.setStatus(Message.STATUS_WAITING);
 686				}
 687			} else {
 688				if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 689					if (!conv.hasValidOtrSession() && (message.getCounterpart() != null)) {
 690						conv.startOtrSession(message.getCounterpart().getResourcepart(), true);
 691						message.setStatus(Message.STATUS_WAITING);
 692					} else if (conv.hasValidOtrSession()) {
 693						if (conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 694							packet = mMessageGenerator.generateOtrChat(message);
 695							send = true;
 696						} else {
 697							message.setStatus(Message.STATUS_WAITING);
 698							conv.startOtrIfNeeded();
 699						}
 700					} else {
 701						message.setStatus(Message.STATUS_WAITING);
 702					}
 703				} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 704					message.getConversation().endOtrIfNeeded();
 705					message.getConversation().findUnsentMessagesWithOtrEncryption(new Conversation.OnMessageFound() {
 706						@Override
 707						public void onMessageFound(Message message) {
 708							markMessage(message,Message.STATUS_SEND_FAILED);
 709						}
 710					});
 711					packet = mMessageGenerator.generatePgpChat(message);
 712					send = true;
 713				} else {
 714					message.getConversation().endOtrIfNeeded();
 715					message.getConversation().findUnsentMessagesWithOtrEncryption(new Conversation.OnMessageFound() {
 716						@Override
 717						public void onMessageFound(Message message) {
 718							markMessage(message,Message.STATUS_SEND_FAILED);
 719						}
 720					});
 721					packet = mMessageGenerator.generateChat(message);
 722					send = true;
 723				}
 724			}
 725			if (!account.getXmppConnection().getFeatures().sm()
 726					&& conv.getMode() != Conversation.MODE_MULTI) {
 727				message.setStatus(Message.STATUS_SEND);
 728					}
 729		} else {
 730			message.setStatus(Message.STATUS_WAITING);
 731			if (message.getType() == Message.TYPE_TEXT) {
 732				if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 733					String pgpBody = message.getEncryptedBody();
 734					String decryptedBody = message.getBody();
 735					message.setBody(pgpBody);
 736					message.setEncryption(Message.ENCRYPTION_PGP);
 737					databaseBackend.createMessage(message);
 738					saveInDb = false;
 739					message.setBody(decryptedBody);
 740					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 741				} else if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 742					if (!conv.hasValidOtrSession()
 743							&& message.getCounterpart() != null) {
 744						conv.startOtrSession(message.getCounterpart().getResourcepart(), false);
 745							}
 746				}
 747			}
 748
 749		}
 750		conv.add(message);
 751		if (saveInDb) {
 752			if (message.getEncryption() == Message.ENCRYPTION_NONE
 753					|| saveEncryptedMessages()) {
 754				databaseBackend.createMessage(message);
 755					}
 756		}
 757		if ((send) && (packet != null)) {
 758			if (conv.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
 759				if (this.sendChatStates()) {
 760					packet.addChild(ChatState.toElement(conv.getOutgoingChatState()));
 761				}
 762			}
 763			sendMessagePacket(account, packet);
 764		}
 765		updateConversationUi();
 766	}
 767
 768	private void sendUnsentMessages(final Conversation conversation) {
 769		conversation.findWaitingMessages(new Conversation.OnMessageFound() {
 770
 771			@Override
 772			public void onMessageFound(Message message) {
 773				resendMessage(message);
 774			}
 775		});
 776	}
 777
 778	private void resendMessage(final Message message) {
 779		Account account = message.getConversation().getAccount();
 780		MessagePacket packet = null;
 781		if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 782			Presences presences = message.getConversation().getContact()
 783				.getPresences();
 784			if (!message.getConversation().hasValidOtrSession()) {
 785				if ((message.getCounterpart() != null)
 786						&& (presences.has(message.getCounterpart().getResourcepart()))) {
 787					message.getConversation().startOtrSession(message.getCounterpart().getResourcepart(), true);
 788				} else {
 789					if (presences.size() == 1) {
 790						String presence = presences.asStringArray()[0];
 791						message.getConversation().startOtrSession(presence, true);
 792					}
 793				}
 794			} else {
 795				if (message.getConversation().getOtrSession()
 796						.getSessionStatus() == SessionStatus.ENCRYPTED) {
 797					try {
 798						message.setCounterpart(Jid.fromSessionID(message.getConversation().getOtrSession().getSessionID()));
 799						if (message.getType() == Message.TYPE_TEXT) {
 800							packet = mMessageGenerator.generateOtrChat(message,
 801									true);
 802						} else if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) {
 803							mJingleConnectionManager.createNewConnection(message);
 804						}
 805					} catch (final InvalidJidException ignored) {
 806
 807					}
 808						}
 809			}
 810		} else if (message.getType() == Message.TYPE_TEXT) {
 811			if (message.getEncryption() == Message.ENCRYPTION_NONE) {
 812				packet = mMessageGenerator.generateChat(message, true);
 813			} else if ((message.getEncryption() == Message.ENCRYPTION_DECRYPTED)
 814					|| (message.getEncryption() == Message.ENCRYPTION_PGP)) {
 815				packet = mMessageGenerator.generatePgpChat(message, true);
 816					}
 817		} else if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) {
 818			Contact contact = message.getConversation().getContact();
 819			Presences presences = contact.getPresences();
 820			if ((message.getCounterpart() != null)
 821					&& (presences.has(message.getCounterpart().getResourcepart()))) {
 822				mJingleConnectionManager.createNewConnection(message);
 823			} else {
 824				if (presences.size() == 1) {
 825					String presence = presences.asStringArray()[0];
 826					try {
 827						message.setCounterpart(Jid.fromParts(contact.getJid().getLocalpart(), contact.getJid().getDomainpart(), presence));
 828					} catch (InvalidJidException e) {
 829						return;
 830					}
 831					mJingleConnectionManager.createNewConnection(message);
 832				}
 833			}
 834		}
 835		if (packet != null) {
 836			if (!account.getXmppConnection().getFeatures().sm()
 837					&& message.getConversation().getMode() != Conversation.MODE_MULTI) {
 838				markMessage(message, Message.STATUS_SEND);
 839			} else {
 840				markMessage(message, Message.STATUS_UNSEND);
 841			}
 842			if (message.getConversation().setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
 843				if (this.sendChatStates()) {
 844					packet.addChild(ChatState.toElement(message.getConversation().getOutgoingChatState()));
 845				}
 846			}
 847			sendMessagePacket(account, packet);
 848		}
 849	}
 850
 851	public void fetchRosterFromServer(final Account account) {
 852		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
 853		if (!"".equals(account.getRosterVersion())) {
 854			Log.d(Config.LOGTAG, account.getJid().toBareJid()
 855					+ ": fetching roster version " + account.getRosterVersion());
 856		} else {
 857			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching roster");
 858		}
 859		iqPacket.query(Xmlns.ROSTER).setAttribute("ver",
 860				account.getRosterVersion());
 861		account.getXmppConnection().sendIqPacket(iqPacket, mIqParser);
 862	}
 863
 864	public void fetchBookmarks(final Account account) {
 865		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
 866		final Element query = iqPacket.query("jabber:iq:private");
 867		query.addChild("storage", "storage:bookmarks");
 868		final OnIqPacketReceived callback = new OnIqPacketReceived() {
 869
 870			@Override
 871			public void onIqPacketReceived(final Account account, final IqPacket packet) {
 872				final Element query = packet.query();
 873				final List<Bookmark> bookmarks = new CopyOnWriteArrayList<>();
 874				final Element storage = query.findChild("storage",
 875						"storage:bookmarks");
 876				if (storage != null) {
 877					for (final Element item : storage.getChildren()) {
 878						if (item.getName().equals("conference")) {
 879							final Bookmark bookmark = Bookmark.parse(item, account);
 880							bookmarks.add(bookmark);
 881							Conversation conversation = find(bookmark);
 882							if (conversation != null) {
 883								conversation.setBookmark(bookmark);
 884							} else if (bookmark.autojoin() && bookmark.getJid() != null) {
 885								conversation = findOrCreateConversation(
 886										account, bookmark.getJid(), true);
 887								conversation.setBookmark(bookmark);
 888								joinMuc(conversation);
 889							}
 890						}
 891					}
 892				}
 893				account.setBookmarks(bookmarks);
 894			}
 895		};
 896		sendIqPacket(account, iqPacket, callback);
 897	}
 898
 899	public void pushBookmarks(Account account) {
 900		IqPacket iqPacket = new IqPacket(IqPacket.TYPE.SET);
 901		Element query = iqPacket.query("jabber:iq:private");
 902		Element storage = query.addChild("storage", "storage:bookmarks");
 903		for (Bookmark bookmark : account.getBookmarks()) {
 904			storage.addChild(bookmark);
 905		}
 906		sendIqPacket(account, iqPacket, null);
 907	}
 908
 909	public void onPhoneContactsLoaded(final List<Bundle> phoneContacts) {
 910		if (mPhoneContactMergerThread != null) {
 911			mPhoneContactMergerThread.interrupt();
 912		}
 913		mPhoneContactMergerThread = new Thread(new Runnable() {
 914			@Override
 915			public void run() {
 916				Log.d(Config.LOGTAG,"start merging phone contacts with roster");
 917				for (Account account : accounts) {
 918					account.getRoster().clearSystemAccounts();
 919					for (Bundle phoneContact : phoneContacts) {
 920						if (Thread.interrupted()) {
 921							Log.d(Config.LOGTAG,"interrupted merging phone contacts");
 922							return;
 923						}
 924						Jid jid;
 925						try {
 926							jid = Jid.fromString(phoneContact.getString("jid"));
 927						} catch (final InvalidJidException e) {
 928							continue;
 929						}
 930						final Contact contact = account.getRoster().getContact(jid);
 931						String systemAccount = phoneContact.getInt("phoneid")
 932							+ "#"
 933							+ phoneContact.getString("lookup");
 934						contact.setSystemAccount(systemAccount);
 935						contact.setPhotoUri(phoneContact.getString("photouri"));
 936						getAvatarService().clear(contact);
 937						contact.setSystemName(phoneContact.getString("displayname"));
 938					}
 939				}
 940				Log.d(Config.LOGTAG,"finished merging phone contacts");
 941				updateAccountUi();
 942			}
 943		});
 944		mPhoneContactMergerThread.start();
 945	}
 946
 947	private void restoreFromDatabase() {
 948		synchronized (this.conversations) {
 949			final Map<String, Account> accountLookupTable = new Hashtable<>();
 950			for (Account account : this.accounts) {
 951				accountLookupTable.put(account.getUuid(), account);
 952			}
 953			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
 954			for (Conversation conversation : this.conversations) {
 955				Account account = accountLookupTable.get(conversation.getAccountUuid());
 956				conversation.setAccount(account);
 957			}
 958			new Thread(new Runnable() {
 959				@Override
 960				public void run() {
 961					Log.d(Config.LOGTAG,"restoring roster");
 962					for(Account account : accounts) {
 963						databaseBackend.readRoster(account.getRoster());
 964					}
 965					getBitmapCache().evictAll();
 966					Looper.prepare();
 967					PhoneHelper.loadPhoneContacts(getApplicationContext(),
 968							new CopyOnWriteArrayList<Bundle>(),
 969							XmppConnectionService.this);
 970					Log.d(Config.LOGTAG,"restoring messages");
 971					for (Conversation conversation : conversations) {
 972						conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
 973						checkDeletedFiles(conversation);
 974					}
 975					mRestoredFromDatabase = true;
 976					Log.d(Config.LOGTAG,"restored all messages");
 977					updateConversationUi();
 978				}
 979			}).start();
 980		}
 981	}
 982
 983	public List<Conversation> getConversations() {
 984		return this.conversations;
 985	}
 986
 987	private void checkDeletedFiles(Conversation conversation) {
 988		conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
 989
 990			@Override
 991			public void onMessageFound(Message message) {
 992				if (!getFileBackend().isFileAvailable(message)) {
 993					message.setDownloadable(new DownloadablePlaceholder(Downloadable.STATUS_DELETED));
 994				}
 995			}
 996		});
 997	}
 998
 999	private void markFileDeleted(String uuid) {
1000		for (Conversation conversation : getConversations()) {
1001			Message message = conversation.findMessageWithFileAndUuid(uuid);
1002			if (message != null) {
1003				if (!getFileBackend().isFileAvailable(message)) {
1004					message.setDownloadable(new DownloadablePlaceholder(Downloadable.STATUS_DELETED));
1005					updateConversationUi();
1006				}
1007				return;
1008			}
1009		}
1010	}
1011
1012	public void populateWithOrderedConversations(final List<Conversation> list) {
1013		populateWithOrderedConversations(list, true);
1014	}
1015
1016	public void populateWithOrderedConversations(final List<Conversation> list, boolean includeConferences) {
1017		list.clear();
1018		if (includeConferences) {
1019			list.addAll(getConversations());
1020		} else {
1021			for (Conversation conversation : getConversations()) {
1022				if (conversation.getMode() == Conversation.MODE_SINGLE) {
1023					list.add(conversation);
1024				}
1025			}
1026		}
1027		Collections.sort(list, new Comparator<Conversation>() {
1028			@Override
1029			public int compare(Conversation lhs, Conversation rhs) {
1030				Message left = lhs.getLatestMessage();
1031				Message right = rhs.getLatestMessage();
1032				if (left.getTimeSent() > right.getTimeSent()) {
1033					return -1;
1034				} else if (left.getTimeSent() < right.getTimeSent()) {
1035					return 1;
1036				} else {
1037					return 0;
1038				}
1039			}
1040		});
1041	}
1042
1043	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
1044		Log.d(Config.LOGTAG, "load more messages for " + conversation.getName() + " prior to " + MessageGenerator.getTimestamp(timestamp));
1045		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation,callback)) {
1046			return;
1047		}
1048		new Thread(new Runnable() {
1049			@Override
1050			public void run() {
1051				final Account account = conversation.getAccount();
1052				List<Message> messages = databaseBackend.getMessages(conversation, 50,timestamp);
1053				if (messages.size() > 0) {
1054					conversation.addAll(0, messages);
1055					checkDeletedFiles(conversation);
1056					callback.onMoreMessagesLoaded(messages.size(), conversation);
1057				} else if (conversation.hasMessagesLeftOnServer()
1058						&& account.isOnlineAndConnected()
1059						&& account.getXmppConnection().getFeatures().mam()) {
1060					MessageArchiveService.Query query = getMessageArchiveService().query(conversation,0,timestamp - 1);
1061					if (query != null) {
1062						query.setCallback(callback);
1063					}
1064					callback.informUser(R.string.fetching_history_from_server);
1065				}
1066			}
1067		}).start();
1068	}
1069
1070	public List<Account> getAccounts() {
1071		return this.accounts;
1072	}
1073
1074	public Conversation find(final Iterable<Conversation> haystack, final Contact contact) {
1075		for (final Conversation conversation : haystack) {
1076			if (conversation.getContact() == contact) {
1077				return conversation;
1078			}
1079		}
1080		return null;
1081	}
1082
1083	public Conversation find(final Iterable<Conversation> haystack, final Account account, final Jid jid) {
1084		if (jid == null) {
1085			return null;
1086		}
1087		for (final Conversation conversation : haystack) {
1088			if ((account == null || conversation.getAccount() == account)
1089					&& (conversation.getJid().toBareJid().equals(jid.toBareJid()))) {
1090				return conversation;
1091			}
1092		}
1093		return null;
1094	}
1095
1096	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc) {
1097		return this.findOrCreateConversation(account, jid, muc, null);
1098	}
1099
1100	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final MessageArchiveService.Query query) {
1101		synchronized (this.conversations) {
1102			Conversation conversation = find(account, jid);
1103			if (conversation != null) {
1104				return conversation;
1105			}
1106			conversation = databaseBackend.findConversation(account, jid);
1107			if (conversation != null) {
1108				conversation.setStatus(Conversation.STATUS_AVAILABLE);
1109				conversation.setAccount(account);
1110				if (muc) {
1111					conversation.setMode(Conversation.MODE_MULTI);
1112					conversation.setContactJid(jid);
1113				} else {
1114					conversation.setMode(Conversation.MODE_SINGLE);
1115					conversation.setContactJid(jid.toBareJid());
1116				}
1117				conversation.setNextEncryption(-1);
1118				conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1119				this.databaseBackend.updateConversation(conversation);
1120			} else {
1121				String conversationName;
1122				Contact contact = account.getRoster().getContact(jid);
1123				if (contact != null) {
1124					conversationName = contact.getDisplayName();
1125				} else {
1126					conversationName = jid.getLocalpart();
1127				}
1128				if (muc) {
1129					conversation = new Conversation(conversationName, account, jid,
1130							Conversation.MODE_MULTI);
1131				} else {
1132					conversation = new Conversation(conversationName, account, jid.toBareJid(),
1133							Conversation.MODE_SINGLE);
1134				}
1135				this.databaseBackend.createConversation(conversation);
1136			}
1137			if (account.getXmppConnection() != null
1138					&& account.getXmppConnection().getFeatures().mam()
1139					&& !muc) {
1140				if (query == null) {
1141					this.mMessageArchiveService.query(conversation);
1142				} else {
1143					if (query.getConversation() == null) {
1144						this.mMessageArchiveService.query(conversation, query.getStart());
1145					}
1146				}
1147			}
1148			checkDeletedFiles(conversation);
1149			this.conversations.add(conversation);
1150			updateConversationUi();
1151			return conversation;
1152		}
1153	}
1154
1155	public void archiveConversation(Conversation conversation) {
1156		getNotificationService().clear(conversation);
1157		conversation.setStatus(Conversation.STATUS_ARCHIVED);
1158		conversation.setNextEncryption(-1);
1159		synchronized (this.conversations) {
1160			if (conversation.getMode() == Conversation.MODE_MULTI) {
1161				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1162					Bookmark bookmark = conversation.getBookmark();
1163					if (bookmark != null && bookmark.autojoin()) {
1164						bookmark.setAutojoin(false);
1165						pushBookmarks(bookmark.getAccount());
1166					}
1167				}
1168				leaveMuc(conversation);
1169			} else {
1170				conversation.endOtrIfNeeded();
1171			}
1172			this.databaseBackend.updateConversation(conversation);
1173			this.conversations.remove(conversation);
1174			updateConversationUi();
1175		}
1176	}
1177
1178	public void createAccount(final Account account) {
1179		account.initOtrEngine(this);
1180		databaseBackend.createAccount(account);
1181		this.accounts.add(account);
1182		this.reconnectAccountInBackground(account);
1183		updateAccountUi();
1184	}
1185
1186	public void updateAccount(final Account account) {
1187		this.statusListener.onStatusChanged(account);
1188		databaseBackend.updateAccount(account);
1189		reconnectAccount(account, false);
1190		updateAccountUi();
1191		getNotificationService().updateErrorNotification();
1192	}
1193
1194	public void updateAccountPasswordOnServer(final Account account, final String newPassword, final OnAccountPasswordChanged callback) {
1195		final IqPacket iq = getIqGenerator().generateSetPassword(account, newPassword);
1196		sendIqPacket(account, iq, new OnIqPacketReceived() {
1197			@Override
1198			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1199				if (packet.getType() == IqPacket.TYPE.RESULT) {
1200					account.setPassword(newPassword);
1201					databaseBackend.updateAccount(account);
1202					callback.onPasswordChangeSucceeded();
1203				} else {
1204					callback.onPasswordChangeFailed();
1205				}
1206			}
1207		});
1208	}
1209
1210	public void deleteAccount(final Account account) {
1211		synchronized (this.conversations) {
1212			for (final Conversation conversation : conversations) {
1213				if (conversation.getAccount() == account) {
1214					if (conversation.getMode() == Conversation.MODE_MULTI) {
1215						leaveMuc(conversation);
1216					} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
1217						conversation.endOtrIfNeeded();
1218					}
1219					conversations.remove(conversation);
1220				}
1221			}
1222			if (account.getXmppConnection() != null) {
1223				this.disconnect(account, true);
1224			}
1225			databaseBackend.deleteAccount(account);
1226			this.accounts.remove(account);
1227			updateAccountUi();
1228			getNotificationService().updateErrorNotification();
1229		}
1230	}
1231
1232	public void setOnConversationListChangedListener(OnConversationUpdate listener) {
1233		synchronized (this) {
1234			if (checkListeners()) {
1235				switchToForeground();
1236			}
1237			this.mOnConversationUpdate = listener;
1238			this.mNotificationService.setIsInForeground(true);
1239			if (this.convChangedListenerCount < 2) {
1240				this.convChangedListenerCount++;
1241			}
1242		}
1243	}
1244
1245	public void removeOnConversationListChangedListener() {
1246		synchronized (this) {
1247			this.convChangedListenerCount--;
1248			if (this.convChangedListenerCount <= 0) {
1249				this.convChangedListenerCount = 0;
1250				this.mOnConversationUpdate = null;
1251				this.mNotificationService.setIsInForeground(false);
1252				if (checkListeners()) {
1253					switchToBackground();
1254				}
1255			}
1256		}
1257	}
1258
1259	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
1260		synchronized (this) {
1261			if (checkListeners()) {
1262				switchToForeground();
1263			}
1264			this.mOnAccountUpdate = listener;
1265			if (this.accountChangedListenerCount < 2) {
1266				this.accountChangedListenerCount++;
1267			}
1268		}
1269	}
1270
1271	public void removeOnAccountListChangedListener() {
1272		synchronized (this) {
1273			this.accountChangedListenerCount--;
1274			if (this.accountChangedListenerCount <= 0) {
1275				this.mOnAccountUpdate = null;
1276				this.accountChangedListenerCount = 0;
1277				if (checkListeners()) {
1278					switchToBackground();
1279				}
1280			}
1281		}
1282	}
1283
1284	public void setOnRosterUpdateListener(final OnRosterUpdate listener) {
1285		synchronized (this) {
1286			if (checkListeners()) {
1287				switchToForeground();
1288			}
1289			this.mOnRosterUpdate = listener;
1290			if (this.rosterChangedListenerCount < 2) {
1291				this.rosterChangedListenerCount++;
1292			}
1293		}
1294	}
1295
1296	public void removeOnRosterUpdateListener() {
1297		synchronized (this) {
1298			this.rosterChangedListenerCount--;
1299			if (this.rosterChangedListenerCount <= 0) {
1300				this.rosterChangedListenerCount = 0;
1301				this.mOnRosterUpdate = null;
1302				if (checkListeners()) {
1303					switchToBackground();
1304				}
1305			}
1306		}
1307	}
1308
1309	public void setOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
1310		synchronized (this) {
1311			if (checkListeners()) {
1312				switchToForeground();
1313			}
1314			this.mOnUpdateBlocklist = listener;
1315			if (this.updateBlocklistListenerCount < 2) {
1316				this.updateBlocklistListenerCount++;
1317			}
1318		}
1319	}
1320
1321	public void removeOnUpdateBlocklistListener() {
1322		synchronized (this) {
1323			this.updateBlocklistListenerCount--;
1324			if (this.updateBlocklistListenerCount <= 0) {
1325				this.updateBlocklistListenerCount = 0;
1326				this.mOnUpdateBlocklist = null;
1327				if (checkListeners()) {
1328					switchToBackground();
1329				}
1330			}
1331		}
1332	}
1333
1334	public void setOnMucRosterUpdateListener(OnMucRosterUpdate listener) {
1335		synchronized (this) {
1336			if (checkListeners()) {
1337				switchToForeground();
1338			}
1339			this.mOnMucRosterUpdate = listener;
1340			if (this.mucRosterChangedListenerCount < 2) {
1341				this.mucRosterChangedListenerCount++;
1342			}
1343		}
1344	}
1345
1346	public void removeOnMucRosterUpdateListener() {
1347		synchronized (this) {
1348			this.mucRosterChangedListenerCount--;
1349			if (this.mucRosterChangedListenerCount <= 0) {
1350				this.mucRosterChangedListenerCount = 0;
1351				this.mOnMucRosterUpdate = null;
1352				if (checkListeners()) {
1353					switchToBackground();
1354				}
1355			}
1356		}
1357	}
1358
1359	private boolean checkListeners() {
1360		return (this.mOnAccountUpdate == null
1361				&& this.mOnConversationUpdate == null
1362				&& this.mOnRosterUpdate == null
1363				&& this.mOnUpdateBlocklist == null);
1364	}
1365
1366	private void switchToForeground() {
1367		for (Account account : getAccounts()) {
1368			if (account.getStatus() == Account.State.ONLINE) {
1369				XmppConnection connection = account.getXmppConnection();
1370				if (connection != null && connection.getFeatures().csi()) {
1371					connection.sendActive();
1372				}
1373			}
1374		}
1375		Log.d(Config.LOGTAG, "app switched into foreground");
1376	}
1377
1378	private void switchToBackground() {
1379		for (Account account : getAccounts()) {
1380			if (account.getStatus() == Account.State.ONLINE) {
1381				XmppConnection connection = account.getXmppConnection();
1382				if (connection != null && connection.getFeatures().csi()) {
1383					connection.sendInactive();
1384				}
1385			}
1386		}
1387		for(Conversation conversation : getConversations()) {
1388			conversation.setIncomingChatState(ChatState.ACTIVE);
1389		}
1390		this.mNotificationService.setIsInForeground(false);
1391		Log.d(Config.LOGTAG, "app switched into background");
1392	}
1393
1394	private void connectMultiModeConversations(Account account) {
1395		List<Conversation> conversations = getConversations();
1396		for (Conversation conversation : conversations) {
1397			if ((conversation.getMode() == Conversation.MODE_MULTI)
1398					&& (conversation.getAccount() == account)) {
1399				conversation.resetMucOptions();
1400				joinMuc(conversation);
1401			}
1402		}
1403	}
1404
1405	public void joinMuc(Conversation conversation) {
1406		Account account = conversation.getAccount();
1407		account.pendingConferenceJoins.remove(conversation);
1408		account.pendingConferenceLeaves.remove(conversation);
1409		if (account.getStatus() == Account.State.ONLINE) {
1410			final String nick = conversation.getMucOptions().getProposedNick();
1411			final Jid joinJid = conversation.getMucOptions().createJoinJid(nick);
1412			if (joinJid == null) {
1413				return; //safety net
1414			}
1415			Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": joining conversation " + joinJid.toString());
1416			PresencePacket packet = new PresencePacket();
1417			packet.setFrom(conversation.getAccount().getJid());
1418			packet.setTo(joinJid);
1419			Element x = packet.addChild("x", "http://jabber.org/protocol/muc");
1420			if (conversation.getMucOptions().getPassword() != null) {
1421				x.addChild("password").setContent(conversation.getMucOptions().getPassword());
1422			}
1423			x.addChild("history").setAttribute("since", PresenceGenerator.getTimestamp(conversation.getLastMessageTransmitted()));
1424			String sig = account.getPgpSignature();
1425			if (sig != null) {
1426				packet.addChild("status").setContent("online");
1427				packet.addChild("x", "jabber:x:signed").setContent(sig);
1428			}
1429			sendPresencePacket(account, packet);
1430			fetchConferenceConfiguration(conversation);
1431			if (!joinJid.equals(conversation.getJid())) {
1432				conversation.setContactJid(joinJid);
1433				databaseBackend.updateConversation(conversation);
1434			}
1435			conversation.setHasMessagesLeftOnServer(false);
1436		} else {
1437			account.pendingConferenceJoins.add(conversation);
1438		}
1439	}
1440
1441	public void providePasswordForMuc(Conversation conversation, String password) {
1442		if (conversation.getMode() == Conversation.MODE_MULTI) {
1443			conversation.getMucOptions().setPassword(password);
1444			if (conversation.getBookmark() != null) {
1445				conversation.getBookmark().setAutojoin(true);
1446				pushBookmarks(conversation.getAccount());
1447			}
1448			databaseBackend.updateConversation(conversation);
1449			joinMuc(conversation);
1450		}
1451	}
1452
1453	public void renameInMuc(final Conversation conversation, final String nick, final UiCallback<Conversation> callback) {
1454		final MucOptions options = conversation.getMucOptions();
1455		final Jid joinJid = options.createJoinJid(nick);
1456		if (options.online()) {
1457			Account account = conversation.getAccount();
1458			options.setOnRenameListener(new OnRenameListener() {
1459
1460				@Override
1461				public void onSuccess() {
1462					conversation.setContactJid(joinJid);
1463					databaseBackend.updateConversation(conversation);
1464					Bookmark bookmark = conversation.getBookmark();
1465					if (bookmark != null) {
1466						bookmark.setNick(nick);
1467						pushBookmarks(bookmark.getAccount());
1468					}
1469					callback.success(conversation);
1470				}
1471
1472				@Override
1473				public void onFailure() {
1474					callback.error(R.string.nick_in_use, conversation);
1475				}
1476			});
1477
1478			PresencePacket packet = new PresencePacket();
1479			packet.setTo(joinJid);
1480			packet.setFrom(conversation.getAccount().getJid());
1481
1482			String sig = account.getPgpSignature();
1483			if (sig != null) {
1484				packet.addChild("status").setContent("online");
1485				packet.addChild("x", "jabber:x:signed").setContent(sig);
1486			}
1487			sendPresencePacket(account, packet);
1488		} else {
1489			conversation.setContactJid(joinJid);
1490			databaseBackend.updateConversation(conversation);
1491			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1492				Bookmark bookmark = conversation.getBookmark();
1493				if (bookmark != null) {
1494					bookmark.setNick(nick);
1495					pushBookmarks(bookmark.getAccount());
1496				}
1497				joinMuc(conversation);
1498			}
1499		}
1500	}
1501
1502	public void leaveMuc(Conversation conversation) {
1503		Account account = conversation.getAccount();
1504		account.pendingConferenceJoins.remove(conversation);
1505		account.pendingConferenceLeaves.remove(conversation);
1506		if (account.getStatus() == Account.State.ONLINE) {
1507			PresencePacket packet = new PresencePacket();
1508			packet.setTo(conversation.getJid());
1509			packet.setFrom(conversation.getAccount().getJid());
1510			packet.setAttribute("type", "unavailable");
1511			sendPresencePacket(conversation.getAccount(), packet);
1512			conversation.getMucOptions().setOffline();
1513			conversation.deregisterWithBookmark();
1514			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid()
1515					+ ": leaving muc " + conversation.getJid());
1516		} else {
1517			account.pendingConferenceLeaves.add(conversation);
1518		}
1519	}
1520
1521	private String findConferenceServer(final Account account) {
1522		String server;
1523		if (account.getXmppConnection() != null) {
1524			server = account.getXmppConnection().getMucServer();
1525			if (server != null) {
1526				return server;
1527			}
1528		}
1529		for (Account other : getAccounts()) {
1530			if (other != account && other.getXmppConnection() != null) {
1531				server = other.getXmppConnection().getMucServer();
1532				if (server != null) {
1533					return server;
1534				}
1535			}
1536		}
1537		return null;
1538	}
1539
1540	public void createAdhocConference(final Account account, final Iterable<Jid> jids, final UiCallback<Conversation> callback) {
1541		Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": creating adhoc conference with " + jids.toString());
1542		if (account.getStatus() == Account.State.ONLINE) {
1543			try {
1544				String server = findConferenceServer(account);
1545				if (server == null) {
1546					if (callback != null) {
1547						callback.error(R.string.no_conference_server_found, null);
1548					}
1549					return;
1550				}
1551				String name = new BigInteger(75, getRNG()).toString(32);
1552				Jid jid = Jid.fromParts(name, server, null);
1553				final Conversation conversation = findOrCreateConversation(account, jid, true);
1554				joinMuc(conversation);
1555				Bundle options = new Bundle();
1556				options.putString("muc#roomconfig_persistentroom", "1");
1557				options.putString("muc#roomconfig_membersonly", "1");
1558				options.putString("muc#roomconfig_publicroom", "0");
1559				options.putString("muc#roomconfig_whois", "anyone");
1560				pushConferenceConfiguration(conversation, options, new OnConferenceOptionsPushed() {
1561					@Override
1562					public void onPushSucceeded() {
1563						for (Jid invite : jids) {
1564							invite(conversation, invite);
1565						}
1566						if (account.countPresences() > 1) {
1567							directInvite(conversation, account.getJid().toBareJid());
1568						}
1569						if (callback != null) {
1570							callback.success(conversation);
1571						}
1572					}
1573
1574					@Override
1575					public void onPushFailed() {
1576						if (callback != null) {
1577							callback.error(R.string.conference_creation_failed, conversation);
1578						}
1579					}
1580				});
1581
1582			} catch (InvalidJidException e) {
1583				if (callback != null) {
1584					callback.error(R.string.conference_creation_failed, null);
1585				}
1586			}
1587		} else {
1588			if (callback != null) {
1589				callback.error(R.string.not_connected_try_again, null);
1590			}
1591		}
1592	}
1593
1594	public void fetchConferenceConfiguration(final Conversation conversation) {
1595		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
1596		request.setTo(conversation.getJid().toBareJid());
1597		request.query("http://jabber.org/protocol/disco#info");
1598		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
1599			@Override
1600			public void onIqPacketReceived(Account account, IqPacket packet) {
1601				if (packet.getType() != IqPacket.TYPE.ERROR) {
1602					ArrayList<String> features = new ArrayList<>();
1603					for (Element child : packet.query().getChildren()) {
1604						if (child != null && child.getName().equals("feature")) {
1605							String var = child.getAttribute("var");
1606							if (var != null) {
1607								features.add(var);
1608							}
1609						}
1610					}
1611					conversation.getMucOptions().updateFeatures(features);
1612					updateConversationUi();
1613				}
1614			}
1615		});
1616	}
1617
1618	public void pushConferenceConfiguration(final Conversation conversation, final Bundle options, final OnConferenceOptionsPushed callback) {
1619		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
1620		request.setTo(conversation.getJid().toBareJid());
1621		request.query("http://jabber.org/protocol/muc#owner");
1622		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
1623			@Override
1624			public void onIqPacketReceived(Account account, IqPacket packet) {
1625				if (packet.getType() != IqPacket.TYPE.ERROR) {
1626					Data data = Data.parse(packet.query().findChild("x", "jabber:x:data"));
1627					for (Field field : data.getFields()) {
1628						if (options.containsKey(field.getName())) {
1629							field.setValue(options.getString(field.getName()));
1630						}
1631					}
1632					data.submit();
1633					IqPacket set = new IqPacket(IqPacket.TYPE.SET);
1634					set.setTo(conversation.getJid().toBareJid());
1635					set.query("http://jabber.org/protocol/muc#owner").addChild(data);
1636					sendIqPacket(account, set, new OnIqPacketReceived() {
1637						@Override
1638						public void onIqPacketReceived(Account account, IqPacket packet) {
1639							if (packet.getType() == IqPacket.TYPE.RESULT) {
1640								if (callback != null) {
1641									callback.onPushSucceeded();
1642								}
1643							} else {
1644								if (callback != null) {
1645									callback.onPushFailed();
1646								}
1647							}
1648						}
1649					});
1650				} else {
1651					if (callback != null) {
1652						callback.onPushFailed();
1653					}
1654				}
1655			}
1656		});
1657	}
1658
1659	public void pushSubjectToConference(final Conversation conference, final String subject) {
1660		MessagePacket packet = this.getMessageGenerator().conferenceSubject(conference, subject);
1661		this.sendMessagePacket(conference.getAccount(), packet);
1662		final MucOptions mucOptions = conference.getMucOptions();
1663		final MucOptions.User self = mucOptions.getSelf();
1664		if (!mucOptions.persistent() && self.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
1665			Bundle options = new Bundle();
1666			options.putString("muc#roomconfig_persistentroom", "1");
1667			this.pushConferenceConfiguration(conference, options, null);
1668		}
1669	}
1670
1671	public void changeAffiliationInConference(final Conversation conference, Jid user, MucOptions.Affiliation affiliation, final OnAffiliationChanged callback) {
1672		final Jid jid = user.toBareJid();
1673		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jid, affiliation.toString());
1674		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
1675			@Override
1676			public void onIqPacketReceived(Account account, IqPacket packet) {
1677				if (packet.getType() == IqPacket.TYPE.RESULT) {
1678					callback.onAffiliationChangedSuccessful(jid);
1679				} else {
1680					callback.onAffiliationChangeFailed(jid, R.string.could_not_change_affiliation);
1681				}
1682			}
1683		});
1684	}
1685
1686	public void changeAffiliationsInConference(final Conversation conference, MucOptions.Affiliation before, MucOptions.Affiliation after) {
1687		List<Jid> jids = new ArrayList<>();
1688		for (MucOptions.User user : conference.getMucOptions().getUsers()) {
1689			if (user.getAffiliation() == before) {
1690				jids.add(user.getJid());
1691			}
1692		}
1693		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
1694		sendIqPacket(conference.getAccount(), request, null);
1695	}
1696
1697	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role, final OnRoleChanged callback) {
1698		IqPacket request = this.mIqGenerator.changeRole(conference, nick, role.toString());
1699		Log.d(Config.LOGTAG, request.toString());
1700		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
1701			@Override
1702			public void onIqPacketReceived(Account account, IqPacket packet) {
1703				Log.d(Config.LOGTAG, packet.toString());
1704				if (packet.getType() == IqPacket.TYPE.RESULT) {
1705					callback.onRoleChangedSuccessful(nick);
1706				} else {
1707					callback.onRoleChangeFailed(nick, R.string.could_not_change_role);
1708				}
1709			}
1710		});
1711	}
1712
1713	public void disconnect(Account account, boolean force) {
1714		if ((account.getStatus() == Account.State.ONLINE)
1715				|| (account.getStatus() == Account.State.DISABLED)) {
1716			if (!force) {
1717				List<Conversation> conversations = getConversations();
1718				for (Conversation conversation : conversations) {
1719					if (conversation.getAccount() == account) {
1720						if (conversation.getMode() == Conversation.MODE_MULTI) {
1721							leaveMuc(conversation);
1722						} else {
1723							if (conversation.endOtrIfNeeded()) {
1724								Log.d(Config.LOGTAG, account.getJid().toBareJid()
1725										+ ": ended otr session with "
1726										+ conversation.getJid());
1727							}
1728						}
1729					}
1730				}
1731				sendOfflinePresence(account);
1732			}
1733			account.getXmppConnection().disconnect(force);
1734		}
1735	}
1736
1737	@Override
1738	public IBinder onBind(Intent intent) {
1739		return mBinder;
1740	}
1741
1742	public void updateMessage(Message message) {
1743		databaseBackend.updateMessage(message);
1744		updateConversationUi();
1745	}
1746
1747	protected void syncDirtyContacts(Account account) {
1748		for (Contact contact : account.getRoster().getContacts()) {
1749			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
1750				pushContactToServer(contact);
1751			}
1752			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
1753				deleteContactOnServer(contact);
1754			}
1755		}
1756	}
1757
1758	public void createContact(Contact contact) {
1759		SharedPreferences sharedPref = getPreferences();
1760		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1761		if (autoGrant) {
1762			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
1763			contact.setOption(Contact.Options.ASKING);
1764		}
1765		pushContactToServer(contact);
1766	}
1767
1768	public void onOtrSessionEstablished(Conversation conversation) {
1769		final Account account = conversation.getAccount();
1770		final Session otrSession = conversation.getOtrSession();
1771		Log.d(Config.LOGTAG,
1772				account.getJid().toBareJid() + " otr session established with "
1773						+ conversation.getJid() + "/"
1774						+ otrSession.getSessionID().getUserID());
1775		conversation.findUnsentMessagesWithOtrEncryption(new Conversation.OnMessageFound() {
1776
1777			@Override
1778			public void onMessageFound(Message message) {
1779				SessionID id = otrSession.getSessionID();
1780				try {
1781					message.setCounterpart(Jid.fromString(id.getAccountID() + "/" + id.getUserID()));
1782				} catch (InvalidJidException e) {
1783					return;
1784				}
1785				if (message.getType() == Message.TYPE_TEXT) {
1786					MessagePacket outPacket = mMessageGenerator.generateOtrChat(message, true);
1787					if (outPacket != null) {
1788						message.setStatus(Message.STATUS_SEND);
1789						databaseBackend.updateMessage(message);
1790						sendMessagePacket(account, outPacket);
1791					}
1792				} else if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) {
1793					mJingleConnectionManager.createNewConnection(message);
1794				}
1795				updateConversationUi();
1796			}
1797		});
1798	}
1799
1800	public boolean renewSymmetricKey(Conversation conversation) {
1801		Account account = conversation.getAccount();
1802		byte[] symmetricKey = new byte[32];
1803		this.mRandom.nextBytes(symmetricKey);
1804		Session otrSession = conversation.getOtrSession();
1805		if (otrSession != null) {
1806			MessagePacket packet = new MessagePacket();
1807			packet.setType(MessagePacket.TYPE_CHAT);
1808			packet.setFrom(account.getJid());
1809			packet.addChild("private", "urn:xmpp:carbons:2");
1810			packet.addChild("no-copy", "urn:xmpp:hints");
1811			packet.setAttribute("to", otrSession.getSessionID().getAccountID() + "/"
1812					+ otrSession.getSessionID().getUserID());
1813			try {
1814				packet.setBody(otrSession
1815						.transformSending(CryptoHelper.FILETRANSFER
1816								+ CryptoHelper.bytesToHex(symmetricKey))[0]);
1817				sendMessagePacket(account, packet);
1818				conversation.setSymmetricKey(symmetricKey);
1819				return true;
1820			} catch (OtrException e) {
1821				return false;
1822			}
1823		}
1824		return false;
1825	}
1826
1827	public void pushContactToServer(final Contact contact) {
1828		contact.resetOption(Contact.Options.DIRTY_DELETE);
1829		contact.setOption(Contact.Options.DIRTY_PUSH);
1830		final Account account = contact.getAccount();
1831		if (account.getStatus() == Account.State.ONLINE) {
1832			final boolean ask = contact.getOption(Contact.Options.ASKING);
1833			final boolean sendUpdates = contact
1834					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
1835					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
1836			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
1837			iq.query(Xmlns.ROSTER).addChild(contact.asElement());
1838			account.getXmppConnection().sendIqPacket(iq, null);
1839			if (sendUpdates) {
1840				sendPresencePacket(account,
1841						mPresenceGenerator.sendPresenceUpdatesTo(contact));
1842			}
1843			if (ask) {
1844				sendPresencePacket(account,
1845						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
1846			}
1847		}
1848	}
1849
1850	public void publishAvatar(final Account account,
1851							  final Uri image,
1852							  final UiCallback<Avatar> callback) {
1853		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
1854		final int size = Config.AVATAR_SIZE;
1855		final Avatar avatar = getFileBackend()
1856				.getPepAvatar(image, size, format);
1857		if (avatar != null) {
1858			avatar.height = size;
1859			avatar.width = size;
1860			if (format.equals(Bitmap.CompressFormat.WEBP)) {
1861				avatar.type = "image/webp";
1862			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
1863				avatar.type = "image/jpeg";
1864			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
1865				avatar.type = "image/png";
1866			}
1867			if (!getFileBackend().save(avatar)) {
1868				callback.error(R.string.error_saving_avatar, avatar);
1869				return;
1870			}
1871			final IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
1872			this.sendIqPacket(account, packet, new OnIqPacketReceived() {
1873
1874				@Override
1875				public void onIqPacketReceived(Account account, IqPacket result) {
1876					if (result.getType() == IqPacket.TYPE.RESULT) {
1877						final IqPacket packet = XmppConnectionService.this.mIqGenerator
1878								.publishAvatarMetadata(avatar);
1879						sendIqPacket(account, packet, new OnIqPacketReceived() {
1880
1881							@Override
1882							public void onIqPacketReceived(Account account,
1883														   IqPacket result) {
1884								if (result.getType() == IqPacket.TYPE.RESULT) {
1885									if (account.setAvatar(avatar.getFilename())) {
1886										getAvatarService().clear(account);
1887										databaseBackend.updateAccount(account);
1888									}
1889									callback.success(avatar);
1890								} else {
1891									callback.error(
1892											R.string.error_publish_avatar_server_reject,
1893											avatar);
1894								}
1895							}
1896						});
1897					} else {
1898						callback.error(
1899								R.string.error_publish_avatar_server_reject,
1900								avatar);
1901					}
1902				}
1903			});
1904		} else {
1905			callback.error(R.string.error_publish_avatar_converting, null);
1906		}
1907	}
1908
1909	public void fetchAvatar(Account account, Avatar avatar) {
1910		fetchAvatar(account, avatar, null);
1911	}
1912
1913	private static String generateFetchKey(Account account, final Avatar avatar) {
1914		return account.getJid().toBareJid()+"_"+avatar.owner+"_"+avatar.sha1sum;
1915	}
1916
1917	public void fetchAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
1918		final String KEY = generateFetchKey(account, avatar);
1919		synchronized(this.mInProgressAvatarFetches) {
1920			if (this.mInProgressAvatarFetches.contains(KEY)) {
1921				return;
1922			} else {
1923				switch (avatar.origin) {
1924					case PEP:
1925						this.mInProgressAvatarFetches.add(KEY);
1926						fetchAvatarPep(account, avatar, callback);
1927						break;
1928					case VCARD:
1929						this.mInProgressAvatarFetches.add(KEY);
1930						fetchAvatarVcard(account, avatar, callback);
1931						break;
1932				}
1933			}
1934		}
1935	}
1936
1937	private void fetchAvatarPep(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
1938		IqPacket packet = this.mIqGenerator.retrievePepAvatar(avatar);
1939		sendIqPacket(account, packet, new OnIqPacketReceived() {
1940
1941			@Override
1942			public void onIqPacketReceived(Account account, IqPacket result) {
1943				synchronized (mInProgressAvatarFetches) {
1944					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
1945				}
1946				final String ERROR = account.getJid().toBareJid()
1947						+ ": fetching avatar for " + avatar.owner + " failed ";
1948				if (result.getType() == IqPacket.TYPE.RESULT) {
1949					avatar.image = mIqParser.avatarData(result);
1950					if (avatar.image != null) {
1951						if (getFileBackend().save(avatar)) {
1952							if (account.getJid().toBareJid().equals(avatar.owner)) {
1953								if (account.setAvatar(avatar.getFilename())) {
1954									databaseBackend.updateAccount(account);
1955								}
1956								getAvatarService().clear(account);
1957								updateConversationUi();
1958								updateAccountUi();
1959							} else {
1960								Contact contact = account.getRoster()
1961										.getContact(avatar.owner);
1962								contact.setAvatar(avatar);
1963								getAvatarService().clear(contact);
1964								updateConversationUi();
1965								updateRosterUi();
1966							}
1967							if (callback != null) {
1968								callback.success(avatar);
1969							}
1970							Log.d(Config.LOGTAG, account.getJid().toBareJid()
1971									+ ": succesfuly fetched pep avatar for " + avatar.owner);
1972							return;
1973						}
1974					} else {
1975
1976						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
1977					}
1978				} else {
1979					Element error = result.findChild("error");
1980					if (error == null) {
1981						Log.d(Config.LOGTAG, ERROR + "(server error)");
1982					} else {
1983						Log.d(Config.LOGTAG, ERROR + error.toString());
1984					}
1985				}
1986				if (callback != null) {
1987					callback.error(0, null);
1988				}
1989
1990			}
1991		});
1992	}
1993
1994	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
1995		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
1996		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
1997			@Override
1998			public void onIqPacketReceived(Account account, IqPacket packet) {
1999				synchronized (mInProgressAvatarFetches) {
2000					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2001				}
2002				if (packet.getType() == IqPacket.TYPE.RESULT) {
2003					Element vCard = packet.findChild("vCard", "vcard-temp");
2004					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
2005					String image = photo != null ? photo.findChildContent("BINVAL") : null;
2006					if (image != null) {
2007						avatar.image = image;
2008						if (getFileBackend().save(avatar)) {
2009							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2010									+ ": successfully fetched vCard avatar for " + avatar.owner);
2011							Contact contact = account.getRoster()
2012									.getContact(avatar.owner);
2013							contact.setAvatar(avatar);
2014							getAvatarService().clear(contact);
2015							updateConversationUi();
2016							updateRosterUi();
2017						}
2018					}
2019				}
2020			}
2021		});
2022	}
2023
2024	public void checkForAvatar(Account account, final UiCallback<Avatar> callback) {
2025		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2026		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2027
2028			@Override
2029			public void onIqPacketReceived(Account account, IqPacket packet) {
2030				if (packet.getType() == IqPacket.TYPE.RESULT) {
2031					Element pubsub = packet.findChild("pubsub",
2032							"http://jabber.org/protocol/pubsub");
2033					if (pubsub != null) {
2034						Element items = pubsub.findChild("items");
2035						if (items != null) {
2036							Avatar avatar = Avatar.parseMetadata(items);
2037							if (avatar != null) {
2038								avatar.owner = account.getJid().toBareJid();
2039								if (fileBackend.isAvatarCached(avatar)) {
2040									if (account.setAvatar(avatar.getFilename())) {
2041										databaseBackend.updateAccount(account);
2042									}
2043									getAvatarService().clear(account);
2044									callback.success(avatar);
2045								} else {
2046									fetchAvatarPep(account, avatar, callback);
2047								}
2048								return;
2049							}
2050						}
2051					}
2052				}
2053				callback.error(0, null);
2054			}
2055		});
2056	}
2057
2058	public void deleteContactOnServer(Contact contact) {
2059		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
2060		contact.resetOption(Contact.Options.DIRTY_PUSH);
2061		contact.setOption(Contact.Options.DIRTY_DELETE);
2062		Account account = contact.getAccount();
2063		if (account.getStatus() == Account.State.ONLINE) {
2064			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2065			Element item = iq.query(Xmlns.ROSTER).addChild("item");
2066			item.setAttribute("jid", contact.getJid().toString());
2067			item.setAttribute("subscription", "remove");
2068			account.getXmppConnection().sendIqPacket(iq, null);
2069		}
2070	}
2071
2072	public void updateConversation(Conversation conversation) {
2073		this.databaseBackend.updateConversation(conversation);
2074	}
2075
2076	public void reconnectAccount(final Account account, final boolean force) {
2077		synchronized (account) {
2078			if (account.getXmppConnection() != null) {
2079				disconnect(account, force);
2080			}
2081			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2082
2083				synchronized (this.mInProgressAvatarFetches) {
2084					for(Iterator<String> iterator = this.mInProgressAvatarFetches.iterator(); iterator.hasNext();) {
2085						final String KEY = iterator.next();
2086						if (KEY.startsWith(account.getJid().toBareJid()+"_")) {
2087							iterator.remove();
2088						}
2089					}
2090				}
2091
2092				if (account.getXmppConnection() == null) {
2093					account.setXmppConnection(createConnection(account));
2094				}
2095				Thread thread = new Thread(account.getXmppConnection());
2096				thread.start();
2097				scheduleWakeUpCall(Config.CONNECT_TIMEOUT, account.getUuid().hashCode());
2098			} else {
2099				account.getRoster().clearPresences();
2100				account.setXmppConnection(null);
2101			}
2102		}
2103	}
2104
2105	public void reconnectAccountInBackground(final Account account) {
2106		new Thread(new Runnable() {
2107			@Override
2108			public void run() {
2109				reconnectAccount(account,false);
2110			}
2111		}).start();
2112	}
2113
2114	public void invite(Conversation conversation, Jid contact) {
2115		Log.d(Config.LOGTAG,conversation.getAccount().getJid().toBareJid()+": inviting "+contact+" to "+conversation.getJid().toBareJid());
2116		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
2117		sendMessagePacket(conversation.getAccount(), packet);
2118	}
2119
2120	public void directInvite(Conversation conversation, Jid jid) {
2121		MessagePacket packet = mMessageGenerator.directInvite(conversation, jid);
2122		sendMessagePacket(conversation.getAccount(),packet);
2123	}
2124
2125	public void resetSendingToWaiting(Account account) {
2126		for (Conversation conversation : getConversations()) {
2127			if (conversation.getAccount() == account) {
2128				conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
2129
2130					@Override
2131					public void onMessageFound(Message message) {
2132						markMessage(message, Message.STATUS_WAITING);
2133					}
2134				});
2135			}
2136		}
2137	}
2138
2139	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status) {
2140		if (uuid == null) {
2141			return null;
2142		}
2143		for (Conversation conversation : getConversations()) {
2144			if (conversation.getJid().toBareJid().equals(recipient) && conversation.getAccount() == account) {
2145				final Message message = conversation.findSentMessageWithUuid(uuid);
2146				if (message != null) {
2147					markMessage(message, status);
2148				}
2149				return message;
2150			}
2151		}
2152		return null;
2153	}
2154
2155	public boolean markMessage(Conversation conversation, String uuid,
2156							   int status) {
2157		if (uuid == null) {
2158			return false;
2159		} else {
2160			Message message = conversation.findSentMessageWithUuid(uuid);
2161			if (message != null) {
2162				markMessage(message, status);
2163				return true;
2164			} else {
2165				return false;
2166			}
2167		}
2168	}
2169
2170	public void markMessage(Message message, int status) {
2171		if (status == Message.STATUS_SEND_FAILED
2172				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
2173				.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
2174			return;
2175		}
2176		message.setStatus(status);
2177		databaseBackend.updateMessage(message);
2178		updateConversationUi();
2179	}
2180
2181	public SharedPreferences getPreferences() {
2182		return PreferenceManager
2183				.getDefaultSharedPreferences(getApplicationContext());
2184	}
2185
2186	public boolean forceEncryption() {
2187		return getPreferences().getBoolean("force_encryption", false);
2188	}
2189
2190	public boolean confirmMessages() {
2191		return getPreferences().getBoolean("confirm_messages", true);
2192	}
2193
2194	public boolean sendChatStates() {
2195		return getPreferences().getBoolean("chat_states", false);
2196	}
2197
2198	public boolean saveEncryptedMessages() {
2199		return !getPreferences().getBoolean("dont_save_encrypted", false);
2200	}
2201
2202	public boolean indicateReceived() {
2203		return getPreferences().getBoolean("indicate_received", false);
2204	}
2205
2206	public int unreadCount() {
2207		int count = 0;
2208		for(Conversation conversation : getConversations()) {
2209			count += conversation.unreadCount();
2210		}
2211		return count;
2212	}
2213
2214	public void updateConversationUi() {
2215		if (mOnConversationUpdate != null) {
2216			mOnConversationUpdate.onConversationUpdate();
2217		}
2218	}
2219
2220	public void updateAccountUi() {
2221		if (mOnAccountUpdate != null) {
2222			mOnAccountUpdate.onAccountUpdate();
2223		}
2224	}
2225
2226	public void updateRosterUi() {
2227		if (mOnRosterUpdate != null) {
2228			mOnRosterUpdate.onRosterUpdate();
2229		}
2230	}
2231
2232	public void updateBlocklistUi(final OnUpdateBlocklist.Status status) {
2233		if (mOnUpdateBlocklist != null) {
2234			mOnUpdateBlocklist.OnUpdateBlocklist(status);
2235		}
2236	}
2237
2238	public void updateMucRosterUi() {
2239		if (mOnMucRosterUpdate != null) {
2240			mOnMucRosterUpdate.onMucRosterUpdate();
2241		}
2242	}
2243
2244	public Account findAccountByJid(final Jid accountJid) {
2245		for (Account account : this.accounts) {
2246			if (account.getJid().toBareJid().equals(accountJid.toBareJid())) {
2247				return account;
2248			}
2249		}
2250		return null;
2251	}
2252
2253	public Conversation findConversationByUuid(String uuid) {
2254		for (Conversation conversation : getConversations()) {
2255			if (conversation.getUuid().equals(uuid)) {
2256				return conversation;
2257			}
2258		}
2259		return null;
2260	}
2261
2262	public void markRead(final Conversation conversation) {
2263		mNotificationService.clear(conversation);
2264		conversation.markRead();
2265		updateUnreadCountBadge();
2266	}
2267
2268	public void updateUnreadCountBadge() {
2269		int count = unreadCount();
2270		Log.d(Config.LOGTAG,"update unread count to "+count);
2271		if (count > 0) {
2272			ShortcutBadger.with(getApplicationContext()).count(count);
2273		} else {
2274			ShortcutBadger.with(getApplicationContext()).remove();
2275		}
2276	}
2277
2278	public void sendReadMarker(final Conversation conversation) {
2279		final Message markable = conversation.getLatestMarkableMessage();
2280		this.markRead(conversation);
2281		if (confirmMessages() && markable != null && markable.getRemoteMsgId() != null) {
2282			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": sending read marker to " + markable.getCounterpart().toString());
2283			Account account = conversation.getAccount();
2284			final Jid to = markable.getCounterpart();
2285			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId());
2286			this.sendMessagePacket(conversation.getAccount(), packet);
2287		}
2288		updateConversationUi();
2289	}
2290
2291	public SecureRandom getRNG() {
2292		return this.mRandom;
2293	}
2294
2295	public MemorizingTrustManager getMemorizingTrustManager() {
2296		return this.mMemorizingTrustManager;
2297	}
2298
2299	public void setMemorizingTrustManager(MemorizingTrustManager trustManager) {
2300		this.mMemorizingTrustManager = trustManager;
2301	}
2302
2303	public void updateMemorizingTrustmanager() {
2304		final MemorizingTrustManager tm;
2305		final boolean dontTrustSystemCAs = getPreferences().getBoolean("dont_trust_system_cas", false);
2306		if (dontTrustSystemCAs) {
2307			 tm = new MemorizingTrustManager(getApplicationContext(), null);
2308		} else {
2309			tm = new MemorizingTrustManager(getApplicationContext());
2310		}
2311		setMemorizingTrustManager(tm);
2312	}
2313
2314	public PowerManager getPowerManager() {
2315		return this.pm;
2316	}
2317
2318	public LruCache<String, Bitmap> getBitmapCache() {
2319		return this.mBitmapCache;
2320	}
2321
2322	public void syncRosterToDisk(final Account account) {
2323		new Thread(new Runnable() {
2324
2325			@Override
2326			public void run() {
2327				databaseBackend.writeRoster(account.getRoster());
2328			}
2329		}).start();
2330
2331	}
2332
2333	public List<String> getKnownHosts() {
2334		final List<String> hosts = new ArrayList<>();
2335		for (final Account account : getAccounts()) {
2336			if (!hosts.contains(account.getServer().toString())) {
2337				hosts.add(account.getServer().toString());
2338			}
2339			for (final Contact contact : account.getRoster().getContacts()) {
2340				if (contact.showInRoster()) {
2341					final String server = contact.getServer().toString();
2342					if (server != null && !hosts.contains(server)) {
2343						hosts.add(server);
2344					}
2345				}
2346			}
2347		}
2348		return hosts;
2349	}
2350
2351	public List<String> getKnownConferenceHosts() {
2352		final ArrayList<String> mucServers = new ArrayList<>();
2353		for (final Account account : accounts) {
2354			if (account.getXmppConnection() != null) {
2355				final String server = account.getXmppConnection().getMucServer();
2356				if (server != null && !mucServers.contains(server)) {
2357					mucServers.add(server);
2358				}
2359			}
2360		}
2361		return mucServers;
2362	}
2363
2364	public void sendMessagePacket(Account account, MessagePacket packet) {
2365		XmppConnection connection = account.getXmppConnection();
2366		if (connection != null) {
2367			connection.sendMessagePacket(packet);
2368		}
2369	}
2370
2371	public void sendPresencePacket(Account account, PresencePacket packet) {
2372		XmppConnection connection = account.getXmppConnection();
2373		if (connection != null) {
2374			connection.sendPresencePacket(packet);
2375		}
2376	}
2377
2378	public void sendIqPacket(final Account account, final IqPacket packet, final OnIqPacketReceived callback) {
2379		final XmppConnection connection = account.getXmppConnection();
2380		if (connection != null) {
2381			connection.sendIqPacket(packet, callback);
2382		}
2383	}
2384
2385	public void sendPresence(final Account account) {
2386		sendPresencePacket(account, mPresenceGenerator.sendPresence(account));
2387	}
2388
2389	public void sendOfflinePresence(final Account account) {
2390		sendPresencePacket(account, mPresenceGenerator.sendOfflinePresence(account));
2391	}
2392
2393	public MessageGenerator getMessageGenerator() {
2394		return this.mMessageGenerator;
2395	}
2396
2397	public PresenceGenerator getPresenceGenerator() {
2398		return this.mPresenceGenerator;
2399	}
2400
2401	public IqGenerator getIqGenerator() {
2402		return this.mIqGenerator;
2403	}
2404
2405	public IqParser getIqParser() {
2406		return this.mIqParser;
2407	}
2408
2409	public JingleConnectionManager getJingleConnectionManager() {
2410		return this.mJingleConnectionManager;
2411	}
2412
2413	public MessageArchiveService getMessageArchiveService() {
2414		return this.mMessageArchiveService;
2415	}
2416
2417	public List<Contact> findContacts(Jid jid) {
2418		ArrayList<Contact> contacts = new ArrayList<>();
2419		for (Account account : getAccounts()) {
2420			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2421				Contact contact = account.getRoster().getContactFromRoster(jid);
2422				if (contact != null) {
2423					contacts.add(contact);
2424				}
2425			}
2426		}
2427		return contacts;
2428	}
2429
2430	public NotificationService getNotificationService() {
2431		return this.mNotificationService;
2432	}
2433
2434	public HttpConnectionManager getHttpConnectionManager() {
2435		return this.mHttpConnectionManager;
2436	}
2437
2438	public void resendFailedMessages(final Message message) {
2439		final Collection<Message> messages = new ArrayList<>();
2440		Message current = message;
2441		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
2442			messages.add(current);
2443			if (current.mergeable(current.next())) {
2444				current = current.next();
2445			} else {
2446				break;
2447			}
2448		}
2449		for (final Message msg : messages) {
2450			markMessage(msg, Message.STATUS_WAITING);
2451			this.resendMessage(msg);
2452		}
2453	}
2454
2455	public void clearConversationHistory(final Conversation conversation) {
2456		conversation.clearMessages();
2457		conversation.setHasMessagesLeftOnServer(false); //avoid messages getting loaded through mam
2458		new Thread(new Runnable() {
2459			@Override
2460			public void run() {
2461				databaseBackend.deleteMessagesInConversation(conversation);
2462			}
2463		}).start();
2464	}
2465
2466	public void sendBlockRequest(final Blockable blockable) {
2467		if (blockable != null && blockable.getBlockedJid() != null) {
2468			final Jid jid = blockable.getBlockedJid();
2469			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetBlockRequest(jid), new OnIqPacketReceived() {
2470
2471				@Override
2472				public void onIqPacketReceived(final Account account, final IqPacket packet) {
2473					if (packet.getType() == IqPacket.TYPE.RESULT) {
2474						account.getBlocklist().add(jid);
2475						updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
2476					}
2477				}
2478			});
2479		}
2480	}
2481
2482	public void sendUnblockRequest(final Blockable blockable) {
2483		if (blockable != null && blockable.getJid() != null) {
2484			final Jid jid = blockable.getBlockedJid();
2485			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetUnblockRequest(jid), new OnIqPacketReceived() {
2486				@Override
2487				public void onIqPacketReceived(final Account account, final IqPacket packet) {
2488					if (packet.getType() == IqPacket.TYPE.RESULT) {
2489						account.getBlocklist().remove(jid);
2490						updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
2491					}
2492				}
2493			});
2494		}
2495	}
2496
2497	public interface OnMoreMessagesLoaded {
2498		public void onMoreMessagesLoaded(int count, Conversation conversation);
2499
2500		public void informUser(int r);
2501	}
2502
2503	public interface OnAccountPasswordChanged {
2504		public void onPasswordChangeSucceeded();
2505
2506		public void onPasswordChangeFailed();
2507	}
2508
2509	public interface OnAffiliationChanged {
2510		public void onAffiliationChangedSuccessful(Jid jid);
2511
2512		public void onAffiliationChangeFailed(Jid jid, int resId);
2513	}
2514
2515	public interface OnRoleChanged {
2516		public void onRoleChangedSuccessful(String nick);
2517
2518		public void onRoleChangeFailed(String nick, int resid);
2519	}
2520
2521	public interface OnConversationUpdate {
2522		public void onConversationUpdate();
2523	}
2524
2525	public interface OnAccountUpdate {
2526		public void onAccountUpdate();
2527	}
2528
2529	public interface OnRosterUpdate {
2530		public void onRosterUpdate();
2531	}
2532
2533	public interface OnMucRosterUpdate {
2534		public void onMucRosterUpdate();
2535	}
2536
2537	public interface OnConferenceOptionsPushed {
2538		public void onPushSucceeded();
2539
2540		public void onPushFailed();
2541	}
2542
2543	public class XmppConnectionBinder extends Binder {
2544		public XmppConnectionService getService() {
2545			return XmppConnectionService.this;
2546		}
2547	}
2548}