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.SessionImpl;
  32import net.java.otr4j.session.SessionStatus;
  33
  34import org.openintents.openpgp.util.OpenPgpApi;
  35import org.openintents.openpgp.util.OpenPgpServiceConnection;
  36
  37import java.math.BigInteger;
  38import java.security.SecureRandom;
  39import java.util.ArrayList;
  40import java.util.Arrays;
  41import java.util.Collection;
  42import java.util.Collections;
  43import java.util.Comparator;
  44import java.util.Hashtable;
  45import java.util.Iterator;
  46import java.util.List;
  47import java.util.Locale;
  48import java.util.Map;
  49import java.util.concurrent.CopyOnWriteArrayList;
  50
  51import de.duenndns.ssl.MemorizingTrustManager;
  52import eu.siacs.conversations.Config;
  53import eu.siacs.conversations.R;
  54import eu.siacs.conversations.crypto.PgpEngine;
  55import eu.siacs.conversations.crypto.axolotl.NoSessionsCreatedException;
  56import eu.siacs.conversations.entities.Account;
  57import eu.siacs.conversations.entities.Blockable;
  58import eu.siacs.conversations.entities.Bookmark;
  59import eu.siacs.conversations.entities.Contact;
  60import eu.siacs.conversations.entities.Conversation;
  61import eu.siacs.conversations.entities.Transferable;
  62import eu.siacs.conversations.entities.TransferablePlaceholder;
  63import eu.siacs.conversations.entities.Message;
  64import eu.siacs.conversations.entities.MucOptions;
  65import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  66import eu.siacs.conversations.generator.IqGenerator;
  67import eu.siacs.conversations.generator.MessageGenerator;
  68import eu.siacs.conversations.generator.PresenceGenerator;
  69import eu.siacs.conversations.http.HttpConnectionManager;
  70import eu.siacs.conversations.parser.IqParser;
  71import eu.siacs.conversations.parser.MessageParser;
  72import eu.siacs.conversations.parser.PresenceParser;
  73import eu.siacs.conversations.persistance.DatabaseBackend;
  74import eu.siacs.conversations.persistance.FileBackend;
  75import eu.siacs.conversations.ui.UiCallback;
  76import eu.siacs.conversations.utils.CryptoHelper;
  77import eu.siacs.conversations.utils.ExceptionHelper;
  78import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
  79import eu.siacs.conversations.utils.PRNGFixes;
  80import eu.siacs.conversations.utils.PhoneHelper;
  81import eu.siacs.conversations.utils.SerialSingleThreadExecutor;
  82import eu.siacs.conversations.utils.Xmlns;
  83import eu.siacs.conversations.xml.Element;
  84import eu.siacs.conversations.xmpp.OnBindListener;
  85import eu.siacs.conversations.xmpp.OnContactStatusChanged;
  86import eu.siacs.conversations.xmpp.OnIqPacketReceived;
  87import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
  88import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
  89import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
  90import eu.siacs.conversations.xmpp.OnStatusChanged;
  91import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
  92import eu.siacs.conversations.xmpp.XmppConnection;
  93import eu.siacs.conversations.xmpp.chatstate.ChatState;
  94import eu.siacs.conversations.xmpp.forms.Data;
  95import eu.siacs.conversations.xmpp.forms.Field;
  96import eu.siacs.conversations.xmpp.jid.InvalidJidException;
  97import eu.siacs.conversations.xmpp.jid.Jid;
  98import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  99import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
 100import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
 101import eu.siacs.conversations.xmpp.pep.Avatar;
 102import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 103import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 104import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 105import me.leolin.shortcutbadger.ShortcutBadger;
 106
 107public class XmppConnectionService extends Service implements OnPhoneContactsLoadedListener {
 108
 109	public static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 110	public static final String ACTION_DISABLE_FOREGROUND = "disable_foreground";
 111	private static final String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
 112	public static final String ACTION_TRY_AGAIN = "try_again";
 113	public static final String ACTION_DISABLE_ACCOUNT = "disable_account";
 114	private ContentObserver contactObserver = new ContentObserver(null) {
 115		@Override
 116		public void onChange(boolean selfChange) {
 117			super.onChange(selfChange);
 118			Intent intent = new Intent(getApplicationContext(),
 119					XmppConnectionService.class);
 120			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 121			startService(intent);
 122		}
 123	};
 124
 125	private final SerialSingleThreadExecutor mFileAddingExecutor = new SerialSingleThreadExecutor();
 126	private final SerialSingleThreadExecutor mDatabaseExecutor = new SerialSingleThreadExecutor();
 127
 128	private final IBinder mBinder = new XmppConnectionBinder();
 129	private final List<Conversation> conversations = new CopyOnWriteArrayList<>();
 130	private final FileObserver fileObserver = new FileObserver(
 131			FileBackend.getConversationsImageDirectory()) {
 132
 133		@Override
 134		public void onEvent(int event, String path) {
 135			if (event == FileObserver.DELETE) {
 136				markFileDeleted(path.split("\\.")[0]);
 137			}
 138		}
 139	};
 140	private final OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 141
 142		@Override
 143		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 144			mJingleConnectionManager.deliverPacket(account, packet);
 145		}
 146	};
 147	private final OnBindListener mOnBindListener = new OnBindListener() {
 148
 149		@Override
 150		public void onBind(final Account account) {
 151			account.getRoster().clearPresences();
 152			account.pendingConferenceJoins.clear();
 153			account.pendingConferenceLeaves.clear();
 154			fetchRosterFromServer(account);
 155			fetchBookmarks(account);
 156			sendPresence(account);
 157			connectMultiModeConversations(account);
 158			updateConversationUi();
 159		}
 160	};
 161	private final OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 162
 163		@Override
 164		public void onMessageAcknowledged(Account account, String uuid) {
 165			for (final Conversation conversation : getConversations()) {
 166				if (conversation.getAccount() == account) {
 167					Message message = conversation.findUnsentMessageWithUuid(uuid);
 168					if (message != null) {
 169						markMessage(message, Message.STATUS_SEND);
 170						if (conversation.setLastMessageTransmitted(System.currentTimeMillis())) {
 171							databaseBackend.updateConversation(conversation);
 172						}
 173					}
 174				}
 175			}
 176		}
 177	};
 178	private final IqGenerator mIqGenerator = new IqGenerator(this);
 179	public DatabaseBackend databaseBackend;
 180	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 181
 182		@Override
 183		public void onContactStatusChanged(Contact contact, boolean online) {
 184			Conversation conversation = find(getConversations(), contact);
 185			if (conversation != null) {
 186				if (online) {
 187					conversation.endOtrIfNeeded();
 188					if (contact.getPresences().size() == 1) {
 189						sendUnsentMessages(conversation);
 190					}
 191				} else {
 192					if (contact.getPresences().size() >= 1) {
 193						if (conversation.hasValidOtrSession()) {
 194							String otrResource = conversation.getOtrSession().getSessionID().getUserID();
 195							if (!(Arrays.asList(contact.getPresences().asStringArray()).contains(otrResource))) {
 196								conversation.endOtrIfNeeded();
 197							}
 198						}
 199					} else {
 200						conversation.endOtrIfNeeded();
 201					}
 202				}
 203			}
 204		}
 205	};
 206	private FileBackend fileBackend = new FileBackend(this);
 207	private MemorizingTrustManager mMemorizingTrustManager;
 208	private NotificationService mNotificationService = new NotificationService(
 209			this);
 210	private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 211	private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 212	private IqParser mIqParser = new IqParser(this);
 213	private OnIqPacketReceived mDefaultIqHandler = new OnIqPacketReceived() {
 214		@Override
 215		public void onIqPacketReceived(Account account, IqPacket packet) {
 216			if (packet.getType() == IqPacket.TYPE.ERROR) {
 217				Element error = packet.findChild("error");
 218				String text = error != null ? error.findChildContent("text") : null;
 219				if (text != null) {
 220					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": received iq error - "+text);
 221				}
 222			}
 223		}
 224	};
 225	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 226	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 227	private List<Account> accounts;
 228	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 229			this);
 230	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 231			this);
 232	private AvatarService mAvatarService = new AvatarService(this);
 233	private final List<String> mInProgressAvatarFetches = new ArrayList<>();
 234	private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 235	private OnConversationUpdate mOnConversationUpdate = null;
 236	private int convChangedListenerCount = 0;
 237	private OnShowErrorToast mOnShowErrorToast = null;
 238	private int showErrorToastListenerCount = 0;
 239	private int unreadCount = -1;
 240	private OnAccountUpdate mOnAccountUpdate = null;
 241	private OnStatusChanged statusListener = new OnStatusChanged() {
 242
 243		@Override
 244		public void onStatusChanged(Account account) {
 245			XmppConnection connection = account.getXmppConnection();
 246			if (mOnAccountUpdate != null) {
 247				mOnAccountUpdate.onAccountUpdate();
 248			}
 249			if (account.getStatus() == Account.State.ONLINE) {
 250				for (Conversation conversation : account.pendingConferenceLeaves) {
 251					leaveMuc(conversation);
 252				}
 253				for (Conversation conversation : account.pendingConferenceJoins) {
 254					joinMuc(conversation);
 255				}
 256				mMessageArchiveService.executePendingQueries(account);
 257				mJingleConnectionManager.cancelInTransmission();
 258				List<Conversation> conversations = getConversations();
 259				for (Conversation conversation : conversations) {
 260					if (conversation.getAccount() == account) {
 261						conversation.startOtrIfNeeded();
 262						sendUnsentMessages(conversation);
 263					}
 264				}
 265				if (connection != null && connection.getFeatures().csi()) {
 266					if (checkListeners()) {
 267						Log.d(Config.LOGTAG, account.getJid().toBareJid()
 268								+ " sending csi//inactive");
 269						connection.sendInactive();
 270					} else {
 271						Log.d(Config.LOGTAG, account.getJid().toBareJid()
 272								+ " sending csi//active");
 273						connection.sendActive();
 274					}
 275				}
 276				syncDirtyContacts(account);
 277                account.getAxolotlService().publishOwnDeviceIdIfNeeded();
 278                account.getAxolotlService().publishBundleIfNeeded();
 279                account.getAxolotlService().publishPreKeysIfNeeded();
 280
 281				scheduleWakeUpCall(Config.PING_MAX_INTERVAL, account.getUuid().hashCode());
 282			} else if (account.getStatus() == Account.State.OFFLINE) {
 283				resetSendingToWaiting(account);
 284				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 285					int timeToReconnect = mRandom.nextInt(50) + 10;
 286					scheduleWakeUpCall(timeToReconnect,account.getUuid().hashCode());
 287				}
 288			} else if (account.getStatus() == Account.State.REGISTRATION_SUCCESSFUL) {
 289				databaseBackend.updateAccount(account);
 290				reconnectAccount(account, true);
 291			} else if ((account.getStatus() != Account.State.CONNECTING)
 292					&& (account.getStatus() != Account.State.NO_INTERNET)) {
 293				if (connection != null) {
 294					int next = connection.getTimeToNextAttempt();
 295					Log.d(Config.LOGTAG, account.getJid().toBareJid()
 296							+ ": error connecting account. try again in "
 297							+ next + "s for the "
 298							+ (connection.getAttempt() + 1) + " time");
 299					scheduleWakeUpCall(next,account.getUuid().hashCode());
 300				}
 301					}
 302			getNotificationService().updateErrorNotification();
 303		}
 304	};
 305	private int accountChangedListenerCount = 0;
 306	private OnRosterUpdate mOnRosterUpdate = null;
 307	private OnUpdateBlocklist mOnUpdateBlocklist = null;
 308	private int updateBlocklistListenerCount = 0;
 309	private int rosterChangedListenerCount = 0;
 310	private OnMucRosterUpdate mOnMucRosterUpdate = null;
 311	private int mucRosterChangedListenerCount = 0;
 312	private SecureRandom mRandom;
 313	private OpenPgpServiceConnection pgpServiceConnection;
 314	private PgpEngine mPgpEngine = null;
 315	private WakeLock wakeLock;
 316	private PowerManager pm;
 317	private LruCache<String, Bitmap> mBitmapCache;
 318	private Thread mPhoneContactMergerThread;
 319
 320	private boolean mRestoredFromDatabase = false;
 321	public boolean areMessagesInitialized() {
 322		return this.mRestoredFromDatabase;
 323	}
 324
 325	public PgpEngine getPgpEngine() {
 326		if (pgpServiceConnection.isBound()) {
 327			if (this.mPgpEngine == null) {
 328				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 329							getApplicationContext(),
 330							pgpServiceConnection.getService()), this);
 331			}
 332			return mPgpEngine;
 333		} else {
 334			return null;
 335		}
 336
 337	}
 338
 339	public FileBackend getFileBackend() {
 340		return this.fileBackend;
 341	}
 342
 343	public AvatarService getAvatarService() {
 344		return this.mAvatarService;
 345	}
 346
 347	public void attachLocationToConversation(final Conversation conversation,
 348											 final Uri uri,
 349											 final UiCallback<Message> callback) {
 350		int encryption = conversation.getNextEncryption(forceEncryption());
 351		if (encryption == Message.ENCRYPTION_PGP) {
 352			encryption = Message.ENCRYPTION_DECRYPTED;
 353		}
 354		Message message = new Message(conversation,uri.toString(),encryption);
 355		if (conversation.getNextCounterpart() != null) {
 356			message.setCounterpart(conversation.getNextCounterpart());
 357		}
 358		if (encryption == Message.ENCRYPTION_DECRYPTED) {
 359			getPgpEngine().encrypt(message, callback);
 360		} else {
 361			callback.success(message);
 362		}
 363	}
 364
 365	public void attachFileToConversation(final Conversation conversation,
 366			final Uri uri,
 367			final UiCallback<Message> callback) {
 368		final Message message;
 369		if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 370			message = new Message(conversation, "",
 371					Message.ENCRYPTION_DECRYPTED);
 372		} else {
 373			message = new Message(conversation, "",
 374					conversation.getNextEncryption(forceEncryption()));
 375		}
 376		message.setCounterpart(conversation.getNextCounterpart());
 377		message.setType(Message.TYPE_FILE);
 378		String path = getFileBackend().getOriginalPath(uri);
 379		if (path!=null) {
 380			message.setRelativeFilePath(path);
 381			getFileBackend().updateFileParams(message);
 382			if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 383				getPgpEngine().encrypt(message, callback);
 384			} else {
 385				callback.success(message);
 386			}
 387		} else {
 388			mFileAddingExecutor.execute(new Runnable() {
 389				@Override
 390				public void run() {
 391					try {
 392						getFileBackend().copyFileToPrivateStorage(message, uri);
 393						getFileBackend().updateFileParams(message);
 394						if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 395							getPgpEngine().encrypt(message, callback);
 396						} else {
 397							callback.success(message);
 398						}
 399					} catch (FileBackend.FileCopyException e) {
 400						callback.error(e.getResId(), message);
 401					}
 402				}
 403			});
 404		}
 405	}
 406
 407	public void attachImageToConversation(final Conversation conversation,
 408			final Uri uri, final UiCallback<Message> callback) {
 409		final Message message;
 410		if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 411			message = new Message(conversation, "",
 412					Message.ENCRYPTION_DECRYPTED);
 413		} else {
 414			message = new Message(conversation, "",
 415					conversation.getNextEncryption(forceEncryption()));
 416		}
 417		message.setCounterpart(conversation.getNextCounterpart());
 418		message.setType(Message.TYPE_IMAGE);
 419		mFileAddingExecutor.execute(new Runnable() {
 420
 421			@Override
 422			public void run() {
 423				try {
 424					getFileBackend().copyImageToPrivateStorage(message, uri);
 425					if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 426						getPgpEngine().encrypt(message, callback);
 427					} else {
 428						callback.success(message);
 429					}
 430				} catch (final FileBackend.FileCopyException e) {
 431					callback.error(e.getResId(), message);
 432				}
 433			}
 434		});
 435	}
 436
 437	public Conversation find(Bookmark bookmark) {
 438		return find(bookmark.getAccount(), bookmark.getJid());
 439	}
 440
 441	public Conversation find(final Account account, final Jid jid) {
 442		return find(getConversations(), account, jid);
 443	}
 444
 445	@Override
 446	public int onStartCommand(Intent intent, int flags, int startId) {
 447		final String action = intent == null ? null : intent.getAction();
 448		if (action != null) {
 449			switch (action) {
 450				case ConnectivityManager.CONNECTIVITY_ACTION:
 451					if (hasInternetConnection() && Config.RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE) {
 452						resetAllAttemptCounts(true);
 453					}
 454					break;
 455				case ACTION_MERGE_PHONE_CONTACTS:
 456					if (mRestoredFromDatabase) {
 457						PhoneHelper.loadPhoneContacts(getApplicationContext(),
 458								new CopyOnWriteArrayList<Bundle>(),
 459								this);
 460					}
 461					return START_STICKY;
 462				case Intent.ACTION_SHUTDOWN:
 463					logoutAndSave();
 464					return START_NOT_STICKY;
 465				case ACTION_CLEAR_NOTIFICATION:
 466					mNotificationService.clear();
 467					break;
 468				case ACTION_DISABLE_FOREGROUND:
 469					getPreferences().edit().putBoolean("keep_foreground_service",false).commit();
 470					toggleForegroundService();
 471					break;
 472				case ACTION_TRY_AGAIN:
 473					resetAllAttemptCounts(false);
 474					break;
 475				case ACTION_DISABLE_ACCOUNT:
 476					try {
 477						String jid = intent.getStringExtra("account");
 478						Account account = jid == null ? null : findAccountByJid(Jid.fromString(jid));
 479						if (account != null) {
 480							account.setOption(Account.OPTION_DISABLED,true);
 481							updateAccount(account);
 482						}
 483					} catch (final InvalidJidException ignored) {
 484						break;
 485					}
 486					break;
 487			}
 488		}
 489		this.wakeLock.acquire();
 490
 491		for (Account account : accounts) {
 492			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 493				if (!hasInternetConnection()) {
 494					account.setStatus(Account.State.NO_INTERNET);
 495					if (statusListener != null) {
 496						statusListener.onStatusChanged(account);
 497					}
 498				} else {
 499					if (account.getStatus() == Account.State.NO_INTERNET) {
 500						account.setStatus(Account.State.OFFLINE);
 501						if (statusListener != null) {
 502							statusListener.onStatusChanged(account);
 503						}
 504					}
 505					if (account.getStatus() == Account.State.ONLINE) {
 506						long lastReceived = account.getXmppConnection().getLastPacketReceived();
 507						long lastSent = account.getXmppConnection().getLastPingSent();
 508						long pingInterval = "ui".equals(action) ? Config.PING_MIN_INTERVAL * 1000 : Config.PING_MAX_INTERVAL * 1000;
 509						long msToNextPing = (Math.max(lastReceived,lastSent) + pingInterval) - SystemClock.elapsedRealtime();
 510						long pingTimeoutIn = (lastSent + Config.PING_TIMEOUT * 1000) - SystemClock.elapsedRealtime();
 511						if (lastSent > lastReceived) {
 512							if (pingTimeoutIn < 0) {
 513								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ping timeout");
 514								this.reconnectAccount(account, true);
 515							} else {
 516								int secs = (int) (pingTimeoutIn / 1000);
 517								this.scheduleWakeUpCall(secs,account.getUuid().hashCode());
 518							}
 519						} else if (msToNextPing <= 0) {
 520							account.getXmppConnection().sendPing();
 521							Log.d(Config.LOGTAG, account.getJid().toBareJid()+" send ping");
 522							this.scheduleWakeUpCall(Config.PING_TIMEOUT,account.getUuid().hashCode());
 523						} else {
 524							this.scheduleWakeUpCall((int) (msToNextPing / 1000), account.getUuid().hashCode());
 525						}
 526					} else if (account.getStatus() == Account.State.OFFLINE) {
 527						reconnectAccount(account,true);
 528					} else if (account.getStatus() == Account.State.CONNECTING) {
 529						long timeout = Config.CONNECT_TIMEOUT - ((SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000);
 530						if (timeout < 0) {
 531							Log.d(Config.LOGTAG, account.getJid() + ": time out during connect reconnecting");
 532							reconnectAccount(account, true);
 533						} else {
 534							scheduleWakeUpCall((int) timeout,account.getUuid().hashCode());
 535						}
 536					} else {
 537						if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 538							reconnectAccount(account, true);
 539						}
 540					}
 541
 542				}
 543				if (mOnAccountUpdate != null) {
 544					mOnAccountUpdate.onAccountUpdate();
 545				}
 546			}
 547		}
 548		/*PowerManager pm = (PowerManager) this.getSystemService(Context.POWER_SERVICE);
 549			if (!pm.isScreenOn()) {
 550			removeStaleListeners();
 551			}*/
 552		if (wakeLock.isHeld()) {
 553			try {
 554				wakeLock.release();
 555			} catch (final RuntimeException ignored) {
 556			}
 557		}
 558		return START_STICKY;
 559	}
 560
 561	private void resetAllAttemptCounts(boolean reallyAll) {
 562		Log.d(Config.LOGTAG,"resetting all attepmt counts");
 563		for(Account account : accounts) {
 564			if (account.hasErrorStatus() || reallyAll) {
 565				final XmppConnection connection = account.getXmppConnection();
 566				if (connection != null) {
 567					connection.resetAttemptCount();
 568				}
 569			}
 570		}
 571	}
 572
 573	public boolean hasInternetConnection() {
 574		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 575			.getSystemService(Context.CONNECTIVITY_SERVICE);
 576		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 577		return activeNetwork != null && activeNetwork.isConnected();
 578	}
 579
 580	@SuppressLint("TrulyRandom")
 581	@Override
 582	public void onCreate() {
 583		ExceptionHelper.init(getApplicationContext());
 584		PRNGFixes.apply();
 585		this.mRandom = new SecureRandom();
 586		updateMemorizingTrustmanager();
 587		final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
 588		final int cacheSize = maxMemory / 8;
 589		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
 590			@Override
 591			protected int sizeOf(final String key, final Bitmap bitmap) {
 592				return bitmap.getByteCount() / 1024;
 593			}
 594		};
 595
 596		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 597		this.accounts = databaseBackend.getAccounts();
 598
 599		for (final Account account : this.accounts) {
 600			account.initAccountServices(this);
 601		}
 602		restoreFromDatabase();
 603
 604		getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 605		this.fileObserver.startWatching();
 606		this.pgpServiceConnection = new OpenPgpServiceConnection(getApplicationContext(), "org.sufficientlysecure.keychain");
 607		this.pgpServiceConnection.bindToService();
 608
 609		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 610		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,"XmppConnectionService");
 611		toggleForegroundService();
 612		updateUnreadCountBadge();
 613	}
 614
 615	public void toggleForegroundService() {
 616		if (getPreferences().getBoolean("keep_foreground_service",false)) {
 617			startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, this.mNotificationService.createForegroundNotification());
 618		} else {
 619			stopForeground(true);
 620		}
 621	}
 622
 623	@Override
 624	public void onTaskRemoved(final Intent rootIntent) {
 625		super.onTaskRemoved(rootIntent);
 626		if (!getPreferences().getBoolean("keep_foreground_service",false)) {
 627			this.logoutAndSave();
 628		}
 629	}
 630
 631	private void logoutAndSave() {
 632		for (final Account account : accounts) {
 633			databaseBackend.writeRoster(account.getRoster());
 634			if (account.getXmppConnection() != null) {
 635				disconnect(account, false);
 636			}
 637		}
 638		Context context = getApplicationContext();
 639		AlarmManager alarmManager = (AlarmManager) context
 640				.getSystemService(Context.ALARM_SERVICE);
 641		Intent intent = new Intent(context, EventReceiver.class);
 642		alarmManager.cancel(PendingIntent.getBroadcast(context, 0, intent, 0));
 643		Log.d(Config.LOGTAG, "good bye");
 644		stopSelf();
 645	}
 646
 647	protected void scheduleWakeUpCall(int seconds, int requestCode) {
 648		final long timeToWake = SystemClock.elapsedRealtime() + (seconds < 0 ? 1 : seconds + 1) * 1000;
 649
 650		Context context = getApplicationContext();
 651		AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
 652
 653		Intent intent = new Intent(context, EventReceiver.class);
 654		intent.setAction("ping");
 655		PendingIntent alarmIntent = PendingIntent.getBroadcast(context, requestCode, intent, 0);
 656		alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, alarmIntent);
 657	}
 658
 659	public XmppConnection createConnection(final Account account) {
 660		final SharedPreferences sharedPref = getPreferences();
 661		account.setResource(sharedPref.getString("resource", "mobile")
 662				.toLowerCase(Locale.getDefault()));
 663		final XmppConnection connection = new XmppConnection(account, this);
 664		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
 665		connection.setOnStatusChangedListener(this.statusListener);
 666		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
 667		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
 668		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 669		connection.setOnBindListener(this.mOnBindListener);
 670		connection.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
 671		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mMessageArchiveService);
 672		return connection;
 673	}
 674
 675	public void sendChatState(Conversation conversation) {
 676		if (sendChatStates()) {
 677			MessagePacket packet = mMessageGenerator.generateChatState(conversation);
 678			sendMessagePacket(conversation.getAccount(), packet);
 679		}
 680	}
 681
 682	private void sendFileMessage(final Message message) {
 683		Log.d(Config.LOGTAG, "send file message");
 684		final Account account = message.getConversation().getAccount();
 685		final XmppConnection connection = account.getXmppConnection();
 686		if (connection != null && connection.getFeatures().httpUpload()) {
 687			mHttpConnectionManager.createNewUploadConnection(message);
 688		} else {
 689			mJingleConnectionManager.createNewConnection(message);
 690		}
 691	}
 692
 693	public void sendMessage(final Message message) {
 694		sendMessage(message, false);
 695	}
 696
 697	private void sendMessage(final Message message, final boolean resend) {
 698		final Account account = message.getConversation().getAccount();
 699		final Conversation conversation = message.getConversation();
 700		account.deactivateGracePeriod();
 701		MessagePacket packet = null;
 702		boolean saveInDb = true;
 703		message.setStatus(Message.STATUS_WAITING);
 704
 705		if (!resend && message.getEncryption() != Message.ENCRYPTION_OTR) {
 706			message.getConversation().endOtrIfNeeded();
 707			message.getConversation().findUnsentMessagesWithOtrEncryption(new Conversation.OnMessageFound() {
 708				@Override
 709				public void onMessageFound(Message message) {
 710					markMessage(message,Message.STATUS_SEND_FAILED);
 711				}
 712			});
 713		}
 714
 715		if (account.isOnlineAndConnected()) {
 716			switch (message.getEncryption()) {
 717				case Message.ENCRYPTION_NONE:
 718					if (message.needsUploading()) {
 719						if (account.httpUploadAvailable() || message.fixCounterpart()) {
 720							this.sendFileMessage(message);
 721						} else {
 722							break;
 723						}
 724					} else {
 725						packet = mMessageGenerator.generateChat(message,resend);
 726					}
 727					break;
 728				case Message.ENCRYPTION_PGP:
 729				case Message.ENCRYPTION_DECRYPTED:
 730					if (message.needsUploading()) {
 731						if (account.httpUploadAvailable() || message.fixCounterpart()) {
 732							this.sendFileMessage(message);
 733						} else {
 734							break;
 735						}
 736					} else {
 737						packet = mMessageGenerator.generatePgpChat(message,resend);
 738					}
 739					break;
 740				case Message.ENCRYPTION_OTR:
 741					SessionImpl otrSession = conversation.getOtrSession();
 742					if (otrSession != null && otrSession.getSessionStatus() == SessionStatus.ENCRYPTED) {
 743						try {
 744							message.setCounterpart(Jid.fromSessionID(otrSession.getSessionID()));
 745						} catch (InvalidJidException e) {
 746							break;
 747						}
 748						if (message.needsUploading()) {
 749							mJingleConnectionManager.createNewConnection(message);
 750						} else {
 751							packet = mMessageGenerator.generateOtrChat(message,resend);
 752						}
 753					} else if (otrSession == null) {
 754						if (message.fixCounterpart()) {
 755							conversation.startOtrSession(message.getCounterpart().getResourcepart(), true);
 756						} else {
 757							break;
 758						}
 759					}
 760					break;
 761			}
 762			if (packet != null) {
 763				if (account.getXmppConnection().getFeatures().sm() || conversation.getMode() == Conversation.MODE_MULTI) {
 764					message.setStatus(Message.STATUS_UNSEND);
 765				} else {
 766					message.setStatus(Message.STATUS_SEND);
 767				}
 768			}
 769		} else {
 770			switch(message.getEncryption()) {
 771				case Message.ENCRYPTION_DECRYPTED:
 772					if (!message.needsUploading()) {
 773						String pgpBody = message.getEncryptedBody();
 774						String decryptedBody = message.getBody();
 775						message.setBody(pgpBody);
 776						message.setEncryption(Message.ENCRYPTION_PGP);
 777						databaseBackend.createMessage(message);
 778						saveInDb = false;
 779						message.setBody(decryptedBody);
 780						message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 781					}
 782					break;
 783				case Message.ENCRYPTION_OTR:
 784					if (!conversation.hasValidOtrSession() && message.getCounterpart() != null) {
 785						conversation.startOtrSession(message.getCounterpart().getResourcepart(), false);
 786					}
 787					break;
 788			}
 789		}
 790
 791		if (resend) {
 792			if (packet != null) {
 793				if (account.getXmppConnection().getFeatures().sm() || conversation.getMode() == Conversation.MODE_MULTI) {
 794					markMessage(message,Message.STATUS_UNSEND);
 795				} else {
 796					markMessage(message,Message.STATUS_SEND);
 797				}
 798			}
 799		} else {
 800			conversation.add(message);
 801			if (saveInDb && (message.getEncryption() == Message.ENCRYPTION_NONE || saveEncryptedMessages())) {
 802				databaseBackend.createMessage(message);
 803			}
 804			updateConversationUi();
 805		}
 806		if (packet != null) {
 807			if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
 808				if (this.sendChatStates()) {
 809					packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
 810				}
 811			}
 812			sendMessagePacket(account, packet);
 813		}
 814	}
 815
 816	private void sendUnsentMessages(final Conversation conversation) {
 817		conversation.findWaitingMessages(new Conversation.OnMessageFound() {
 818
 819			@Override
 820			public void onMessageFound(Message message) {
 821				resendMessage(message);
 822			}
 823		});
 824	}
 825
 826	public void resendMessage(final Message message) {
 827		sendMessage(message, true);
 828	}
 829
 830	public void fetchRosterFromServer(final Account account) {
 831		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
 832		if (!"".equals(account.getRosterVersion())) {
 833			Log.d(Config.LOGTAG, account.getJid().toBareJid()
 834					+ ": fetching roster version " + account.getRosterVersion());
 835		} else {
 836			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching roster");
 837		}
 838		iqPacket.query(Xmlns.ROSTER).setAttribute("ver",account.getRosterVersion());
 839		sendIqPacket(account,iqPacket,mIqParser);
 840	}
 841
 842	public void fetchBookmarks(final Account account) {
 843		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
 844		final Element query = iqPacket.query("jabber:iq:private");
 845		query.addChild("storage", "storage:bookmarks");
 846		final OnIqPacketReceived callback = new OnIqPacketReceived() {
 847
 848			@Override
 849			public void onIqPacketReceived(final Account account, final IqPacket packet) {
 850				final Element query = packet.query();
 851				final List<Bookmark> bookmarks = new CopyOnWriteArrayList<>();
 852				final Element storage = query.findChild("storage",
 853						"storage:bookmarks");
 854				if (storage != null) {
 855					for (final Element item : storage.getChildren()) {
 856						if (item.getName().equals("conference")) {
 857							final Bookmark bookmark = Bookmark.parse(item, account);
 858							bookmarks.add(bookmark);
 859							Conversation conversation = find(bookmark);
 860							if (conversation != null) {
 861								conversation.setBookmark(bookmark);
 862							} else if (bookmark.autojoin() && bookmark.getJid() != null) {
 863								conversation = findOrCreateConversation(
 864										account, bookmark.getJid(), true);
 865								conversation.setBookmark(bookmark);
 866								joinMuc(conversation);
 867							}
 868						}
 869					}
 870				}
 871				account.setBookmarks(bookmarks);
 872			}
 873		};
 874		sendIqPacket(account, iqPacket, callback);
 875	}
 876
 877	public void pushBookmarks(Account account) {
 878		IqPacket iqPacket = new IqPacket(IqPacket.TYPE.SET);
 879		Element query = iqPacket.query("jabber:iq:private");
 880		Element storage = query.addChild("storage", "storage:bookmarks");
 881		for (Bookmark bookmark : account.getBookmarks()) {
 882			storage.addChild(bookmark);
 883		}
 884		sendIqPacket(account, iqPacket, mDefaultIqHandler);
 885	}
 886
 887	public void onPhoneContactsLoaded(final List<Bundle> phoneContacts) {
 888		if (mPhoneContactMergerThread != null) {
 889			mPhoneContactMergerThread.interrupt();
 890		}
 891		mPhoneContactMergerThread = new Thread(new Runnable() {
 892			@Override
 893			public void run() {
 894				Log.d(Config.LOGTAG,"start merging phone contacts with roster");
 895				for (Account account : accounts) {
 896					List<Contact> withSystemAccounts = account.getRoster().getWithSystemAccounts();
 897					for (Bundle phoneContact : phoneContacts) {
 898						if (Thread.interrupted()) {
 899							Log.d(Config.LOGTAG,"interrupted merging phone contacts");
 900							return;
 901						}
 902						Jid jid;
 903						try {
 904							jid = Jid.fromString(phoneContact.getString("jid"));
 905						} catch (final InvalidJidException e) {
 906							continue;
 907						}
 908						final Contact contact = account.getRoster().getContact(jid);
 909						String systemAccount = phoneContact.getInt("phoneid")
 910							+ "#"
 911							+ phoneContact.getString("lookup");
 912						contact.setSystemAccount(systemAccount);
 913						if (contact.setPhotoUri(phoneContact.getString("photouri"))) {
 914							getAvatarService().clear(contact);
 915						}
 916						contact.setSystemName(phoneContact.getString("displayname"));
 917						withSystemAccounts.remove(contact);
 918					}
 919					for(Contact contact : withSystemAccounts) {
 920						contact.setSystemAccount(null);
 921						contact.setSystemName(null);
 922						if (contact.setPhotoUri(null)) {
 923							getAvatarService().clear(contact);
 924						}
 925					}
 926				}
 927				Log.d(Config.LOGTAG,"finished merging phone contacts");
 928				updateAccountUi();
 929			}
 930		});
 931		mPhoneContactMergerThread.start();
 932	}
 933
 934	private void restoreFromDatabase() {
 935		synchronized (this.conversations) {
 936			final Map<String, Account> accountLookupTable = new Hashtable<>();
 937			for (Account account : this.accounts) {
 938				accountLookupTable.put(account.getUuid(), account);
 939			}
 940			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
 941			for (Conversation conversation : this.conversations) {
 942				Account account = accountLookupTable.get(conversation.getAccountUuid());
 943				conversation.setAccount(account);
 944			}
 945			Runnable runnable =new Runnable() {
 946				@Override
 947				public void run() {
 948					Log.d(Config.LOGTAG,"restoring roster");
 949					for(Account account : accounts) {
 950						databaseBackend.readRoster(account.getRoster());
 951					}
 952					getBitmapCache().evictAll();
 953					Looper.prepare();
 954					PhoneHelper.loadPhoneContacts(getApplicationContext(),
 955							new CopyOnWriteArrayList<Bundle>(),
 956							XmppConnectionService.this);
 957					Log.d(Config.LOGTAG,"restoring messages");
 958					for (Conversation conversation : conversations) {
 959						conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
 960						checkDeletedFiles(conversation);
 961					}
 962					mRestoredFromDatabase = true;
 963					Log.d(Config.LOGTAG,"restored all messages");
 964					updateConversationUi();
 965				}
 966			};
 967			mDatabaseExecutor.execute(runnable);
 968		}
 969	}
 970
 971	public List<Conversation> getConversations() {
 972		return this.conversations;
 973	}
 974
 975	private void checkDeletedFiles(Conversation conversation) {
 976		conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
 977
 978			@Override
 979			public void onMessageFound(Message message) {
 980				if (!getFileBackend().isFileAvailable(message)) {
 981					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
 982				}
 983			}
 984		});
 985	}
 986
 987	private void markFileDeleted(String uuid) {
 988		for (Conversation conversation : getConversations()) {
 989			Message message = conversation.findMessageWithFileAndUuid(uuid);
 990			if (message != null) {
 991				if (!getFileBackend().isFileAvailable(message)) {
 992					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
 993					updateConversationUi();
 994				}
 995				return;
 996			}
 997		}
 998	}
 999
1000	public void populateWithOrderedConversations(final List<Conversation> list) {
1001		populateWithOrderedConversations(list, true);
1002	}
1003
1004	public void populateWithOrderedConversations(final List<Conversation> list, boolean includeNoFileUpload) {
1005		list.clear();
1006		if (includeNoFileUpload) {
1007			list.addAll(getConversations());
1008		} else {
1009			for (Conversation conversation : getConversations()) {
1010				if (conversation.getMode() == Conversation.MODE_SINGLE
1011						|| conversation.getAccount().httpUploadAvailable()) {
1012					list.add(conversation);
1013				}
1014			}
1015		}
1016		Collections.sort(list, new Comparator<Conversation>() {
1017			@Override
1018			public int compare(Conversation lhs, Conversation rhs) {
1019				Message left = lhs.getLatestMessage();
1020				Message right = rhs.getLatestMessage();
1021				if (left.getTimeSent() > right.getTimeSent()) {
1022					return -1;
1023				} else if (left.getTimeSent() < right.getTimeSent()) {
1024					return 1;
1025				} else {
1026					return 0;
1027				}
1028			}
1029		});
1030	}
1031
1032	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
1033		Log.d(Config.LOGTAG, "load more messages for " + conversation.getName() + " prior to " + MessageGenerator.getTimestamp(timestamp));
1034		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation,callback)) {
1035			return;
1036		}
1037		Runnable runnable = new Runnable() {
1038			@Override
1039			public void run() {
1040				final Account account = conversation.getAccount();
1041				List<Message> messages = databaseBackend.getMessages(conversation, 50,timestamp);
1042				if (messages.size() > 0) {
1043					conversation.addAll(0, messages);
1044					checkDeletedFiles(conversation);
1045					callback.onMoreMessagesLoaded(messages.size(), conversation);
1046				} else if (conversation.hasMessagesLeftOnServer()
1047						&& account.isOnlineAndConnected()
1048						&& account.getXmppConnection().getFeatures().mam()) {
1049					MessageArchiveService.Query query = getMessageArchiveService().query(conversation,0,timestamp - 1);
1050					if (query != null) {
1051						query.setCallback(callback);
1052					}
1053					callback.informUser(R.string.fetching_history_from_server);
1054				}
1055			}
1056		};
1057		mDatabaseExecutor.execute(runnable);
1058	}
1059
1060	public List<Account> getAccounts() {
1061		return this.accounts;
1062	}
1063
1064	public Conversation find(final Iterable<Conversation> haystack, final Contact contact) {
1065		for (final Conversation conversation : haystack) {
1066			if (conversation.getContact() == contact) {
1067				return conversation;
1068			}
1069		}
1070		return null;
1071	}
1072
1073	public Conversation find(final Iterable<Conversation> haystack, final Account account, final Jid jid) {
1074		if (jid == null) {
1075			return null;
1076		}
1077		for (final Conversation conversation : haystack) {
1078			if ((account == null || conversation.getAccount() == account)
1079					&& (conversation.getJid().toBareJid().equals(jid.toBareJid()))) {
1080				return conversation;
1081			}
1082		}
1083		return null;
1084	}
1085
1086	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc) {
1087		return this.findOrCreateConversation(account, jid, muc, null);
1088	}
1089
1090	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final MessageArchiveService.Query query) {
1091		synchronized (this.conversations) {
1092			Conversation conversation = find(account, jid);
1093			if (conversation != null) {
1094				return conversation;
1095			}
1096			conversation = databaseBackend.findConversation(account, jid);
1097			if (conversation != null) {
1098				conversation.setStatus(Conversation.STATUS_AVAILABLE);
1099				conversation.setAccount(account);
1100				if (muc) {
1101					conversation.setMode(Conversation.MODE_MULTI);
1102					conversation.setContactJid(jid);
1103				} else {
1104					conversation.setMode(Conversation.MODE_SINGLE);
1105					conversation.setContactJid(jid.toBareJid());
1106				}
1107				conversation.setNextEncryption(-1);
1108				conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1109				this.databaseBackend.updateConversation(conversation);
1110			} else {
1111				String conversationName;
1112				Contact contact = account.getRoster().getContact(jid);
1113				if (contact != null) {
1114					conversationName = contact.getDisplayName();
1115				} else {
1116					conversationName = jid.getLocalpart();
1117				}
1118				if (muc) {
1119					conversation = new Conversation(conversationName, account, jid,
1120							Conversation.MODE_MULTI);
1121				} else {
1122					conversation = new Conversation(conversationName, account, jid.toBareJid(),
1123							Conversation.MODE_SINGLE);
1124				}
1125				this.databaseBackend.createConversation(conversation);
1126			}
1127			if (account.getXmppConnection() != null
1128					&& account.getXmppConnection().getFeatures().mam()
1129					&& !muc) {
1130				if (query == null) {
1131					this.mMessageArchiveService.query(conversation);
1132				} else {
1133					if (query.getConversation() == null) {
1134						this.mMessageArchiveService.query(conversation, query.getStart());
1135					}
1136				}
1137			}
1138			checkDeletedFiles(conversation);
1139			this.conversations.add(conversation);
1140			updateConversationUi();
1141			return conversation;
1142		}
1143	}
1144
1145	public void archiveConversation(Conversation conversation) {
1146		getNotificationService().clear(conversation);
1147		conversation.setStatus(Conversation.STATUS_ARCHIVED);
1148		conversation.setNextEncryption(-1);
1149		synchronized (this.conversations) {
1150			if (conversation.getMode() == Conversation.MODE_MULTI) {
1151				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1152					Bookmark bookmark = conversation.getBookmark();
1153					if (bookmark != null && bookmark.autojoin()) {
1154						bookmark.setAutojoin(false);
1155						pushBookmarks(bookmark.getAccount());
1156					}
1157				}
1158				leaveMuc(conversation);
1159			} else {
1160				conversation.endOtrIfNeeded();
1161			}
1162			this.databaseBackend.updateConversation(conversation);
1163			this.conversations.remove(conversation);
1164			updateConversationUi();
1165		}
1166	}
1167
1168	public void createAccount(final Account account) {
1169		account.initAccountServices(this);
1170		databaseBackend.createAccount(account);
1171		this.accounts.add(account);
1172		this.reconnectAccountInBackground(account);
1173		updateAccountUi();
1174	}
1175
1176	public void updateAccount(final Account account) {
1177		this.statusListener.onStatusChanged(account);
1178		databaseBackend.updateAccount(account);
1179		reconnectAccount(account, false);
1180		updateAccountUi();
1181		getNotificationService().updateErrorNotification();
1182	}
1183
1184	public void updateAccountPasswordOnServer(final Account account, final String newPassword, final OnAccountPasswordChanged callback) {
1185		final IqPacket iq = getIqGenerator().generateSetPassword(account, newPassword);
1186		sendIqPacket(account, iq, new OnIqPacketReceived() {
1187			@Override
1188			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1189				if (packet.getType() == IqPacket.TYPE.RESULT) {
1190					account.setPassword(newPassword);
1191					databaseBackend.updateAccount(account);
1192					callback.onPasswordChangeSucceeded();
1193				} else {
1194					callback.onPasswordChangeFailed();
1195				}
1196			}
1197		});
1198	}
1199
1200	public void deleteAccount(final Account account) {
1201		synchronized (this.conversations) {
1202			for (final Conversation conversation : conversations) {
1203				if (conversation.getAccount() == account) {
1204					if (conversation.getMode() == Conversation.MODE_MULTI) {
1205						leaveMuc(conversation);
1206					} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
1207						conversation.endOtrIfNeeded();
1208					}
1209					conversations.remove(conversation);
1210				}
1211			}
1212			if (account.getXmppConnection() != null) {
1213				this.disconnect(account, true);
1214			}
1215			databaseBackend.deleteAccount(account);
1216			this.accounts.remove(account);
1217			updateAccountUi();
1218			getNotificationService().updateErrorNotification();
1219		}
1220	}
1221
1222	public void setOnConversationListChangedListener(OnConversationUpdate listener) {
1223		synchronized (this) {
1224			if (checkListeners()) {
1225				switchToForeground();
1226			}
1227			this.mOnConversationUpdate = listener;
1228			this.mNotificationService.setIsInForeground(true);
1229			if (this.convChangedListenerCount < 2) {
1230				this.convChangedListenerCount++;
1231			}
1232		}
1233	}
1234
1235	public void removeOnConversationListChangedListener() {
1236		synchronized (this) {
1237			this.convChangedListenerCount--;
1238			if (this.convChangedListenerCount <= 0) {
1239				this.convChangedListenerCount = 0;
1240				this.mOnConversationUpdate = null;
1241				this.mNotificationService.setIsInForeground(false);
1242				if (checkListeners()) {
1243					switchToBackground();
1244				}
1245			}
1246		}
1247	}
1248
1249	public void setOnShowErrorToastListener(OnShowErrorToast onShowErrorToast) {
1250		synchronized (this) {
1251			if (checkListeners()) {
1252				switchToForeground();
1253			}
1254			this.mOnShowErrorToast = onShowErrorToast;
1255			if (this.showErrorToastListenerCount < 2) {
1256				this.showErrorToastListenerCount++;
1257			}
1258		}
1259		this.mOnShowErrorToast = onShowErrorToast;
1260	}
1261
1262	public void removeOnShowErrorToastListener() {
1263		synchronized (this) {
1264			this.showErrorToastListenerCount--;
1265			if (this.showErrorToastListenerCount <= 0) {
1266				this.showErrorToastListenerCount = 0;
1267				this.mOnShowErrorToast = null;
1268				if (checkListeners()) {
1269					switchToBackground();
1270				}
1271			}
1272		}
1273	}
1274
1275	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
1276		synchronized (this) {
1277			if (checkListeners()) {
1278				switchToForeground();
1279			}
1280			this.mOnAccountUpdate = listener;
1281			if (this.accountChangedListenerCount < 2) {
1282				this.accountChangedListenerCount++;
1283			}
1284		}
1285	}
1286
1287	public void removeOnAccountListChangedListener() {
1288		synchronized (this) {
1289			this.accountChangedListenerCount--;
1290			if (this.accountChangedListenerCount <= 0) {
1291				this.mOnAccountUpdate = null;
1292				this.accountChangedListenerCount = 0;
1293				if (checkListeners()) {
1294					switchToBackground();
1295				}
1296			}
1297		}
1298	}
1299
1300	public void setOnRosterUpdateListener(final OnRosterUpdate listener) {
1301		synchronized (this) {
1302			if (checkListeners()) {
1303				switchToForeground();
1304			}
1305			this.mOnRosterUpdate = listener;
1306			if (this.rosterChangedListenerCount < 2) {
1307				this.rosterChangedListenerCount++;
1308			}
1309		}
1310	}
1311
1312	public void removeOnRosterUpdateListener() {
1313		synchronized (this) {
1314			this.rosterChangedListenerCount--;
1315			if (this.rosterChangedListenerCount <= 0) {
1316				this.rosterChangedListenerCount = 0;
1317				this.mOnRosterUpdate = null;
1318				if (checkListeners()) {
1319					switchToBackground();
1320				}
1321			}
1322		}
1323	}
1324
1325	public void setOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
1326		synchronized (this) {
1327			if (checkListeners()) {
1328				switchToForeground();
1329			}
1330			this.mOnUpdateBlocklist = listener;
1331			if (this.updateBlocklistListenerCount < 2) {
1332				this.updateBlocklistListenerCount++;
1333			}
1334		}
1335	}
1336
1337	public void removeOnUpdateBlocklistListener() {
1338		synchronized (this) {
1339			this.updateBlocklistListenerCount--;
1340			if (this.updateBlocklistListenerCount <= 0) {
1341				this.updateBlocklistListenerCount = 0;
1342				this.mOnUpdateBlocklist = null;
1343				if (checkListeners()) {
1344					switchToBackground();
1345				}
1346			}
1347		}
1348	}
1349
1350	public void setOnMucRosterUpdateListener(OnMucRosterUpdate listener) {
1351		synchronized (this) {
1352			if (checkListeners()) {
1353				switchToForeground();
1354			}
1355			this.mOnMucRosterUpdate = listener;
1356			if (this.mucRosterChangedListenerCount < 2) {
1357				this.mucRosterChangedListenerCount++;
1358			}
1359		}
1360	}
1361
1362	public void removeOnMucRosterUpdateListener() {
1363		synchronized (this) {
1364			this.mucRosterChangedListenerCount--;
1365			if (this.mucRosterChangedListenerCount <= 0) {
1366				this.mucRosterChangedListenerCount = 0;
1367				this.mOnMucRosterUpdate = null;
1368				if (checkListeners()) {
1369					switchToBackground();
1370				}
1371			}
1372		}
1373	}
1374
1375	private boolean checkListeners() {
1376		return (this.mOnAccountUpdate == null
1377				&& this.mOnConversationUpdate == null
1378				&& this.mOnRosterUpdate == null
1379				&& this.mOnUpdateBlocklist == null
1380				&& this.mOnShowErrorToast == null);
1381	}
1382
1383	private void switchToForeground() {
1384		for (Account account : getAccounts()) {
1385			if (account.getStatus() == Account.State.ONLINE) {
1386				XmppConnection connection = account.getXmppConnection();
1387				if (connection != null && connection.getFeatures().csi()) {
1388					connection.sendActive();
1389				}
1390			}
1391		}
1392		Log.d(Config.LOGTAG, "app switched into foreground");
1393	}
1394
1395	private void switchToBackground() {
1396		for (Account account : getAccounts()) {
1397			if (account.getStatus() == Account.State.ONLINE) {
1398				XmppConnection connection = account.getXmppConnection();
1399				if (connection != null && connection.getFeatures().csi()) {
1400					connection.sendInactive();
1401				}
1402			}
1403		}
1404		for(Conversation conversation : getConversations()) {
1405			conversation.setIncomingChatState(ChatState.ACTIVE);
1406		}
1407		this.mNotificationService.setIsInForeground(false);
1408		Log.d(Config.LOGTAG, "app switched into background");
1409	}
1410
1411	private void connectMultiModeConversations(Account account) {
1412		List<Conversation> conversations = getConversations();
1413		for (Conversation conversation : conversations) {
1414			if ((conversation.getMode() == Conversation.MODE_MULTI)
1415					&& (conversation.getAccount() == account)) {
1416				conversation.resetMucOptions();
1417				joinMuc(conversation);
1418			}
1419		}
1420	}
1421
1422	public void joinMuc(Conversation conversation) {
1423		Account account = conversation.getAccount();
1424		account.pendingConferenceJoins.remove(conversation);
1425		account.pendingConferenceLeaves.remove(conversation);
1426		if (account.getStatus() == Account.State.ONLINE) {
1427			final String nick = conversation.getMucOptions().getProposedNick();
1428			final Jid joinJid = conversation.getMucOptions().createJoinJid(nick);
1429			if (joinJid == null) {
1430				return; //safety net
1431			}
1432			Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": joining conversation " + joinJid.toString());
1433			PresencePacket packet = new PresencePacket();
1434			packet.setFrom(conversation.getAccount().getJid());
1435			packet.setTo(joinJid);
1436			Element x = packet.addChild("x", "http://jabber.org/protocol/muc");
1437			if (conversation.getMucOptions().getPassword() != null) {
1438				x.addChild("password").setContent(conversation.getMucOptions().getPassword());
1439			}
1440			x.addChild("history").setAttribute("since", PresenceGenerator.getTimestamp(conversation.getLastMessageTransmitted()));
1441			String sig = account.getPgpSignature();
1442			if (sig != null) {
1443				packet.addChild("status").setContent("online");
1444				packet.addChild("x", "jabber:x:signed").setContent(sig);
1445			}
1446			sendPresencePacket(account, packet);
1447			fetchConferenceConfiguration(conversation);
1448			if (!joinJid.equals(conversation.getJid())) {
1449				conversation.setContactJid(joinJid);
1450				databaseBackend.updateConversation(conversation);
1451			}
1452			conversation.setHasMessagesLeftOnServer(false);
1453		} else {
1454			account.pendingConferenceJoins.add(conversation);
1455		}
1456	}
1457
1458	public void providePasswordForMuc(Conversation conversation, String password) {
1459		if (conversation.getMode() == Conversation.MODE_MULTI) {
1460			conversation.getMucOptions().setPassword(password);
1461			if (conversation.getBookmark() != null) {
1462				conversation.getBookmark().setAutojoin(true);
1463				pushBookmarks(conversation.getAccount());
1464			}
1465			databaseBackend.updateConversation(conversation);
1466			joinMuc(conversation);
1467		}
1468	}
1469
1470	public void renameInMuc(final Conversation conversation, final String nick, final UiCallback<Conversation> callback) {
1471		final MucOptions options = conversation.getMucOptions();
1472		final Jid joinJid = options.createJoinJid(nick);
1473		if (options.online()) {
1474			Account account = conversation.getAccount();
1475			options.setOnRenameListener(new OnRenameListener() {
1476
1477				@Override
1478				public void onSuccess() {
1479					conversation.setContactJid(joinJid);
1480					databaseBackend.updateConversation(conversation);
1481					Bookmark bookmark = conversation.getBookmark();
1482					if (bookmark != null) {
1483						bookmark.setNick(nick);
1484						pushBookmarks(bookmark.getAccount());
1485					}
1486					callback.success(conversation);
1487				}
1488
1489				@Override
1490				public void onFailure() {
1491					callback.error(R.string.nick_in_use, conversation);
1492				}
1493			});
1494
1495			PresencePacket packet = new PresencePacket();
1496			packet.setTo(joinJid);
1497			packet.setFrom(conversation.getAccount().getJid());
1498
1499			String sig = account.getPgpSignature();
1500			if (sig != null) {
1501				packet.addChild("status").setContent("online");
1502				packet.addChild("x", "jabber:x:signed").setContent(sig);
1503			}
1504			sendPresencePacket(account, packet);
1505		} else {
1506			conversation.setContactJid(joinJid);
1507			databaseBackend.updateConversation(conversation);
1508			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1509				Bookmark bookmark = conversation.getBookmark();
1510				if (bookmark != null) {
1511					bookmark.setNick(nick);
1512					pushBookmarks(bookmark.getAccount());
1513				}
1514				joinMuc(conversation);
1515			}
1516		}
1517	}
1518
1519	public void leaveMuc(Conversation conversation) {
1520		Account account = conversation.getAccount();
1521		account.pendingConferenceJoins.remove(conversation);
1522		account.pendingConferenceLeaves.remove(conversation);
1523		if (account.getStatus() == Account.State.ONLINE) {
1524			PresencePacket packet = new PresencePacket();
1525			packet.setTo(conversation.getJid());
1526			packet.setFrom(conversation.getAccount().getJid());
1527			packet.setAttribute("type", "unavailable");
1528			sendPresencePacket(conversation.getAccount(), packet);
1529			conversation.getMucOptions().setOffline();
1530			conversation.deregisterWithBookmark();
1531			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid()
1532					+ ": leaving muc " + conversation.getJid());
1533		} else {
1534			account.pendingConferenceLeaves.add(conversation);
1535		}
1536	}
1537
1538	private String findConferenceServer(final Account account) {
1539		String server;
1540		if (account.getXmppConnection() != null) {
1541			server = account.getXmppConnection().getMucServer();
1542			if (server != null) {
1543				return server;
1544			}
1545		}
1546		for (Account other : getAccounts()) {
1547			if (other != account && other.getXmppConnection() != null) {
1548				server = other.getXmppConnection().getMucServer();
1549				if (server != null) {
1550					return server;
1551				}
1552			}
1553		}
1554		return null;
1555	}
1556
1557	public void createAdhocConference(final Account account, final Iterable<Jid> jids, final UiCallback<Conversation> callback) {
1558		Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": creating adhoc conference with " + jids.toString());
1559		if (account.getStatus() == Account.State.ONLINE) {
1560			try {
1561				String server = findConferenceServer(account);
1562				if (server == null) {
1563					if (callback != null) {
1564						callback.error(R.string.no_conference_server_found, null);
1565					}
1566					return;
1567				}
1568				String name = new BigInteger(75, getRNG()).toString(32);
1569				Jid jid = Jid.fromParts(name, server, null);
1570				final Conversation conversation = findOrCreateConversation(account, jid, true);
1571				joinMuc(conversation);
1572				Bundle options = new Bundle();
1573				options.putString("muc#roomconfig_persistentroom", "1");
1574				options.putString("muc#roomconfig_membersonly", "1");
1575				options.putString("muc#roomconfig_publicroom", "0");
1576				options.putString("muc#roomconfig_whois", "anyone");
1577				pushConferenceConfiguration(conversation, options, new OnConferenceOptionsPushed() {
1578					@Override
1579					public void onPushSucceeded() {
1580						for (Jid invite : jids) {
1581							invite(conversation, invite);
1582						}
1583						if (account.countPresences() > 1) {
1584							directInvite(conversation, account.getJid().toBareJid());
1585						}
1586						if (callback != null) {
1587							callback.success(conversation);
1588						}
1589					}
1590
1591					@Override
1592					public void onPushFailed() {
1593						if (callback != null) {
1594							callback.error(R.string.conference_creation_failed, conversation);
1595						}
1596					}
1597				});
1598
1599			} catch (InvalidJidException e) {
1600				if (callback != null) {
1601					callback.error(R.string.conference_creation_failed, null);
1602				}
1603			}
1604		} else {
1605			if (callback != null) {
1606				callback.error(R.string.not_connected_try_again, null);
1607			}
1608		}
1609	}
1610
1611	public void fetchConferenceConfiguration(final Conversation conversation) {
1612		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
1613		request.setTo(conversation.getJid().toBareJid());
1614		request.query("http://jabber.org/protocol/disco#info");
1615		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
1616			@Override
1617			public void onIqPacketReceived(Account account, IqPacket packet) {
1618				if (packet.getType() != IqPacket.TYPE.ERROR) {
1619					ArrayList<String> features = new ArrayList<>();
1620					for (Element child : packet.query().getChildren()) {
1621						if (child != null && child.getName().equals("feature")) {
1622							String var = child.getAttribute("var");
1623							if (var != null) {
1624								features.add(var);
1625							}
1626						}
1627					}
1628					conversation.getMucOptions().updateFeatures(features);
1629					updateConversationUi();
1630				}
1631			}
1632		});
1633	}
1634
1635	public void pushConferenceConfiguration(final Conversation conversation, final Bundle options, final OnConferenceOptionsPushed callback) {
1636		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
1637		request.setTo(conversation.getJid().toBareJid());
1638		request.query("http://jabber.org/protocol/muc#owner");
1639		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
1640			@Override
1641			public void onIqPacketReceived(Account account, IqPacket packet) {
1642				if (packet.getType() != IqPacket.TYPE.ERROR) {
1643					Data data = Data.parse(packet.query().findChild("x", "jabber:x:data"));
1644					for (Field field : data.getFields()) {
1645						if (options.containsKey(field.getName())) {
1646							field.setValue(options.getString(field.getName()));
1647						}
1648					}
1649					data.submit();
1650					IqPacket set = new IqPacket(IqPacket.TYPE.SET);
1651					set.setTo(conversation.getJid().toBareJid());
1652					set.query("http://jabber.org/protocol/muc#owner").addChild(data);
1653					sendIqPacket(account, set, new OnIqPacketReceived() {
1654						@Override
1655						public void onIqPacketReceived(Account account, IqPacket packet) {
1656							if (packet.getType() == IqPacket.TYPE.RESULT) {
1657								if (callback != null) {
1658									callback.onPushSucceeded();
1659								}
1660							} else {
1661								if (callback != null) {
1662									callback.onPushFailed();
1663								}
1664							}
1665						}
1666					});
1667				} else {
1668					if (callback != null) {
1669						callback.onPushFailed();
1670					}
1671				}
1672			}
1673		});
1674	}
1675
1676	public void pushSubjectToConference(final Conversation conference, final String subject) {
1677		MessagePacket packet = this.getMessageGenerator().conferenceSubject(conference, subject);
1678		this.sendMessagePacket(conference.getAccount(), packet);
1679		final MucOptions mucOptions = conference.getMucOptions();
1680		final MucOptions.User self = mucOptions.getSelf();
1681		if (!mucOptions.persistent() && self.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
1682			Bundle options = new Bundle();
1683			options.putString("muc#roomconfig_persistentroom", "1");
1684			this.pushConferenceConfiguration(conference, options, null);
1685		}
1686	}
1687
1688	public void changeAffiliationInConference(final Conversation conference, Jid user, MucOptions.Affiliation affiliation, final OnAffiliationChanged callback) {
1689		final Jid jid = user.toBareJid();
1690		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jid, affiliation.toString());
1691		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
1692			@Override
1693			public void onIqPacketReceived(Account account, IqPacket packet) {
1694				if (packet.getType() == IqPacket.TYPE.RESULT) {
1695					callback.onAffiliationChangedSuccessful(jid);
1696				} else {
1697					callback.onAffiliationChangeFailed(jid, R.string.could_not_change_affiliation);
1698				}
1699			}
1700		});
1701	}
1702
1703	public void changeAffiliationsInConference(final Conversation conference, MucOptions.Affiliation before, MucOptions.Affiliation after) {
1704		List<Jid> jids = new ArrayList<>();
1705		for (MucOptions.User user : conference.getMucOptions().getUsers()) {
1706			if (user.getAffiliation() == before && user.getJid() != null) {
1707				jids.add(user.getJid());
1708			}
1709		}
1710		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
1711		sendIqPacket(conference.getAccount(), request, mDefaultIqHandler);
1712	}
1713
1714	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role, final OnRoleChanged callback) {
1715		IqPacket request = this.mIqGenerator.changeRole(conference, nick, role.toString());
1716		Log.d(Config.LOGTAG, request.toString());
1717		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
1718			@Override
1719			public void onIqPacketReceived(Account account, IqPacket packet) {
1720				Log.d(Config.LOGTAG, packet.toString());
1721				if (packet.getType() == IqPacket.TYPE.RESULT) {
1722					callback.onRoleChangedSuccessful(nick);
1723				} else {
1724					callback.onRoleChangeFailed(nick, R.string.could_not_change_role);
1725				}
1726			}
1727		});
1728	}
1729
1730	public void disconnect(Account account, boolean force) {
1731		if ((account.getStatus() == Account.State.ONLINE)
1732				|| (account.getStatus() == Account.State.DISABLED)) {
1733			if (!force) {
1734				List<Conversation> conversations = getConversations();
1735				for (Conversation conversation : conversations) {
1736					if (conversation.getAccount() == account) {
1737						if (conversation.getMode() == Conversation.MODE_MULTI) {
1738							leaveMuc(conversation);
1739						} else {
1740							if (conversation.endOtrIfNeeded()) {
1741								Log.d(Config.LOGTAG, account.getJid().toBareJid()
1742										+ ": ended otr session with "
1743										+ conversation.getJid());
1744							}
1745						}
1746					}
1747				}
1748				sendOfflinePresence(account);
1749			}
1750			account.getXmppConnection().disconnect(force);
1751		}
1752	}
1753
1754	@Override
1755	public IBinder onBind(Intent intent) {
1756		return mBinder;
1757	}
1758
1759	public void updateMessage(Message message) {
1760		databaseBackend.updateMessage(message);
1761		updateConversationUi();
1762	}
1763
1764	protected void syncDirtyContacts(Account account) {
1765		for (Contact contact : account.getRoster().getContacts()) {
1766			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
1767				pushContactToServer(contact);
1768			}
1769			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
1770				deleteContactOnServer(contact);
1771			}
1772		}
1773	}
1774
1775	public void createContact(Contact contact) {
1776		SharedPreferences sharedPref = getPreferences();
1777		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1778		if (autoGrant) {
1779			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
1780			contact.setOption(Contact.Options.ASKING);
1781		}
1782		pushContactToServer(contact);
1783	}
1784
1785	public void onOtrSessionEstablished(Conversation conversation) {
1786		final Account account = conversation.getAccount();
1787		final Session otrSession = conversation.getOtrSession();
1788		Log.d(Config.LOGTAG,
1789				account.getJid().toBareJid() + " otr session established with "
1790						+ conversation.getJid() + "/"
1791						+ otrSession.getSessionID().getUserID());
1792		conversation.findUnsentMessagesWithOtrEncryption(new Conversation.OnMessageFound() {
1793
1794			@Override
1795			public void onMessageFound(Message message) {
1796				SessionID id = otrSession.getSessionID();
1797				try {
1798					message.setCounterpart(Jid.fromString(id.getAccountID() + "/" + id.getUserID()));
1799				} catch (InvalidJidException e) {
1800					return;
1801				}
1802				if (message.needsUploading()) {
1803					mJingleConnectionManager.createNewConnection(message);
1804				} else {
1805					MessagePacket outPacket = mMessageGenerator.generateOtrChat(message, true);
1806					if (outPacket != null) {
1807						message.setStatus(Message.STATUS_SEND);
1808						databaseBackend.updateMessage(message);
1809						sendMessagePacket(account, outPacket);
1810					}
1811				}
1812				updateConversationUi();
1813			}
1814		});
1815	}
1816
1817	public boolean renewSymmetricKey(Conversation conversation) {
1818		Account account = conversation.getAccount();
1819		byte[] symmetricKey = new byte[32];
1820		this.mRandom.nextBytes(symmetricKey);
1821		Session otrSession = conversation.getOtrSession();
1822		if (otrSession != null) {
1823			MessagePacket packet = new MessagePacket();
1824			packet.setType(MessagePacket.TYPE_CHAT);
1825			packet.setFrom(account.getJid());
1826			packet.addChild("private", "urn:xmpp:carbons:2");
1827			packet.addChild("no-copy", "urn:xmpp:hints");
1828			packet.setAttribute("to", otrSession.getSessionID().getAccountID() + "/"
1829					+ otrSession.getSessionID().getUserID());
1830			try {
1831				packet.setBody(otrSession
1832						.transformSending(CryptoHelper.FILETRANSFER
1833								+ CryptoHelper.bytesToHex(symmetricKey))[0]);
1834				sendMessagePacket(account, packet);
1835				conversation.setSymmetricKey(symmetricKey);
1836				return true;
1837			} catch (OtrException e) {
1838				return false;
1839			}
1840		}
1841		return false;
1842	}
1843
1844	public void pushContactToServer(final Contact contact) {
1845		contact.resetOption(Contact.Options.DIRTY_DELETE);
1846		contact.setOption(Contact.Options.DIRTY_PUSH);
1847		final Account account = contact.getAccount();
1848		if (account.getStatus() == Account.State.ONLINE) {
1849			final boolean ask = contact.getOption(Contact.Options.ASKING);
1850			final boolean sendUpdates = contact
1851					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
1852					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
1853			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
1854			iq.query(Xmlns.ROSTER).addChild(contact.asElement());
1855			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
1856			if (sendUpdates) {
1857				sendPresencePacket(account,
1858						mPresenceGenerator.sendPresenceUpdatesTo(contact));
1859			}
1860			if (ask) {
1861				sendPresencePacket(account,
1862						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
1863			}
1864		}
1865	}
1866
1867	public void publishAvatar(final Account account,
1868							  final Uri image,
1869							  final UiCallback<Avatar> callback) {
1870		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
1871		final int size = Config.AVATAR_SIZE;
1872		final Avatar avatar = getFileBackend()
1873				.getPepAvatar(image, size, format);
1874		if (avatar != null) {
1875			avatar.height = size;
1876			avatar.width = size;
1877			if (format.equals(Bitmap.CompressFormat.WEBP)) {
1878				avatar.type = "image/webp";
1879			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
1880				avatar.type = "image/jpeg";
1881			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
1882				avatar.type = "image/png";
1883			}
1884			if (!getFileBackend().save(avatar)) {
1885				callback.error(R.string.error_saving_avatar, avatar);
1886				return;
1887			}
1888			final IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
1889			this.sendIqPacket(account, packet, new OnIqPacketReceived() {
1890
1891				@Override
1892				public void onIqPacketReceived(Account account, IqPacket result) {
1893					if (result.getType() == IqPacket.TYPE.RESULT) {
1894						final IqPacket packet = XmppConnectionService.this.mIqGenerator
1895								.publishAvatarMetadata(avatar);
1896						sendIqPacket(account, packet, new OnIqPacketReceived() {
1897
1898							@Override
1899							public void onIqPacketReceived(Account account,
1900														   IqPacket result) {
1901								if (result.getType() == IqPacket.TYPE.RESULT) {
1902									if (account.setAvatar(avatar.getFilename())) {
1903										getAvatarService().clear(account);
1904										databaseBackend.updateAccount(account);
1905									}
1906									callback.success(avatar);
1907								} else {
1908									callback.error(
1909											R.string.error_publish_avatar_server_reject,
1910											avatar);
1911								}
1912							}
1913						});
1914					} else {
1915						callback.error(
1916								R.string.error_publish_avatar_server_reject,
1917								avatar);
1918					}
1919				}
1920			});
1921		} else {
1922			callback.error(R.string.error_publish_avatar_converting, null);
1923		}
1924	}
1925
1926	public void fetchAvatar(Account account, Avatar avatar) {
1927		fetchAvatar(account, avatar, null);
1928	}
1929
1930	private static String generateFetchKey(Account account, final Avatar avatar) {
1931		return account.getJid().toBareJid()+"_"+avatar.owner+"_"+avatar.sha1sum;
1932	}
1933
1934	public void fetchAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
1935		final String KEY = generateFetchKey(account, avatar);
1936		synchronized(this.mInProgressAvatarFetches) {
1937			if (this.mInProgressAvatarFetches.contains(KEY)) {
1938				return;
1939			} else {
1940				switch (avatar.origin) {
1941					case PEP:
1942						this.mInProgressAvatarFetches.add(KEY);
1943						fetchAvatarPep(account, avatar, callback);
1944						break;
1945					case VCARD:
1946						this.mInProgressAvatarFetches.add(KEY);
1947						fetchAvatarVcard(account, avatar, callback);
1948						break;
1949				}
1950			}
1951		}
1952	}
1953
1954	private void fetchAvatarPep(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
1955		IqPacket packet = this.mIqGenerator.retrievePepAvatar(avatar);
1956		sendIqPacket(account, packet, new OnIqPacketReceived() {
1957
1958			@Override
1959			public void onIqPacketReceived(Account account, IqPacket result) {
1960				synchronized (mInProgressAvatarFetches) {
1961					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
1962				}
1963				final String ERROR = account.getJid().toBareJid()
1964						+ ": fetching avatar for " + avatar.owner + " failed ";
1965				if (result.getType() == IqPacket.TYPE.RESULT) {
1966					avatar.image = mIqParser.avatarData(result);
1967					if (avatar.image != null) {
1968						if (getFileBackend().save(avatar)) {
1969							if (account.getJid().toBareJid().equals(avatar.owner)) {
1970								if (account.setAvatar(avatar.getFilename())) {
1971									databaseBackend.updateAccount(account);
1972								}
1973								getAvatarService().clear(account);
1974								updateConversationUi();
1975								updateAccountUi();
1976							} else {
1977								Contact contact = account.getRoster()
1978										.getContact(avatar.owner);
1979								contact.setAvatar(avatar);
1980								getAvatarService().clear(contact);
1981								updateConversationUi();
1982								updateRosterUi();
1983							}
1984							if (callback != null) {
1985								callback.success(avatar);
1986							}
1987							Log.d(Config.LOGTAG, account.getJid().toBareJid()
1988									+ ": succesfuly fetched pep avatar for " + avatar.owner);
1989							return;
1990						}
1991					} else {
1992
1993						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
1994					}
1995				} else {
1996					Element error = result.findChild("error");
1997					if (error == null) {
1998						Log.d(Config.LOGTAG, ERROR + "(server error)");
1999					} else {
2000						Log.d(Config.LOGTAG, ERROR + error.toString());
2001					}
2002				}
2003				if (callback != null) {
2004					callback.error(0, null);
2005				}
2006
2007			}
2008		});
2009	}
2010
2011	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2012		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
2013		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2014			@Override
2015			public void onIqPacketReceived(Account account, IqPacket packet) {
2016				synchronized (mInProgressAvatarFetches) {
2017					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2018				}
2019				if (packet.getType() == IqPacket.TYPE.RESULT) {
2020					Element vCard = packet.findChild("vCard", "vcard-temp");
2021					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
2022					String image = photo != null ? photo.findChildContent("BINVAL") : null;
2023					if (image != null) {
2024						avatar.image = image;
2025						if (getFileBackend().save(avatar)) {
2026							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2027									+ ": successfully fetched vCard avatar for " + avatar.owner);
2028							Contact contact = account.getRoster()
2029									.getContact(avatar.owner);
2030							contact.setAvatar(avatar);
2031							getAvatarService().clear(contact);
2032							updateConversationUi();
2033							updateRosterUi();
2034						}
2035					}
2036				}
2037			}
2038		});
2039	}
2040
2041	public void checkForAvatar(Account account, final UiCallback<Avatar> callback) {
2042		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2043		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2044
2045			@Override
2046			public void onIqPacketReceived(Account account, IqPacket packet) {
2047				if (packet.getType() == IqPacket.TYPE.RESULT) {
2048					Element pubsub = packet.findChild("pubsub",
2049							"http://jabber.org/protocol/pubsub");
2050					if (pubsub != null) {
2051						Element items = pubsub.findChild("items");
2052						if (items != null) {
2053							Avatar avatar = Avatar.parseMetadata(items);
2054							if (avatar != null) {
2055								avatar.owner = account.getJid().toBareJid();
2056								if (fileBackend.isAvatarCached(avatar)) {
2057									if (account.setAvatar(avatar.getFilename())) {
2058										databaseBackend.updateAccount(account);
2059									}
2060									getAvatarService().clear(account);
2061									callback.success(avatar);
2062								} else {
2063									fetchAvatarPep(account, avatar, callback);
2064								}
2065								return;
2066							}
2067						}
2068					}
2069				}
2070				callback.error(0, null);
2071			}
2072		});
2073	}
2074
2075	public void deleteContactOnServer(Contact contact) {
2076		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
2077		contact.resetOption(Contact.Options.DIRTY_PUSH);
2078		contact.setOption(Contact.Options.DIRTY_DELETE);
2079		Account account = contact.getAccount();
2080		if (account.getStatus() == Account.State.ONLINE) {
2081			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2082			Element item = iq.query(Xmlns.ROSTER).addChild("item");
2083			item.setAttribute("jid", contact.getJid().toString());
2084			item.setAttribute("subscription", "remove");
2085			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2086		}
2087	}
2088
2089	public void updateConversation(Conversation conversation) {
2090		this.databaseBackend.updateConversation(conversation);
2091	}
2092
2093	public void reconnectAccount(final Account account, final boolean force) {
2094		synchronized (account) {
2095			if (account.getXmppConnection() != null) {
2096				disconnect(account, force);
2097			}
2098			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2099
2100				synchronized (this.mInProgressAvatarFetches) {
2101					for(Iterator<String> iterator = this.mInProgressAvatarFetches.iterator(); iterator.hasNext();) {
2102						final String KEY = iterator.next();
2103						if (KEY.startsWith(account.getJid().toBareJid()+"_")) {
2104							iterator.remove();
2105						}
2106					}
2107				}
2108
2109				if (account.getXmppConnection() == null) {
2110					account.setXmppConnection(createConnection(account));
2111				}
2112				Thread thread = new Thread(account.getXmppConnection());
2113				thread.start();
2114				scheduleWakeUpCall(Config.CONNECT_TIMEOUT, account.getUuid().hashCode());
2115			} else {
2116				account.getRoster().clearPresences();
2117				account.setXmppConnection(null);
2118			}
2119		}
2120	}
2121
2122	public void reconnectAccountInBackground(final Account account) {
2123		new Thread(new Runnable() {
2124			@Override
2125			public void run() {
2126				reconnectAccount(account,false);
2127			}
2128		}).start();
2129	}
2130
2131	public void invite(Conversation conversation, Jid contact) {
2132		Log.d(Config.LOGTAG,conversation.getAccount().getJid().toBareJid()+": inviting "+contact+" to "+conversation.getJid().toBareJid());
2133		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
2134		sendMessagePacket(conversation.getAccount(), packet);
2135	}
2136
2137	public void directInvite(Conversation conversation, Jid jid) {
2138		MessagePacket packet = mMessageGenerator.directInvite(conversation, jid);
2139		sendMessagePacket(conversation.getAccount(),packet);
2140	}
2141
2142	public void resetSendingToWaiting(Account account) {
2143		for (Conversation conversation : getConversations()) {
2144			if (conversation.getAccount() == account) {
2145				conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
2146
2147					@Override
2148					public void onMessageFound(Message message) {
2149						markMessage(message, Message.STATUS_WAITING);
2150					}
2151				});
2152			}
2153		}
2154	}
2155
2156	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status) {
2157		if (uuid == null) {
2158			return null;
2159		}
2160		for (Conversation conversation : getConversations()) {
2161			if (conversation.getJid().toBareJid().equals(recipient) && conversation.getAccount() == account) {
2162				final Message message = conversation.findSentMessageWithUuid(uuid);
2163				if (message != null) {
2164					markMessage(message, status);
2165				}
2166				return message;
2167			}
2168		}
2169		return null;
2170	}
2171
2172	public boolean markMessage(Conversation conversation, String uuid,
2173							   int status) {
2174		if (uuid == null) {
2175			return false;
2176		} else {
2177			Message message = conversation.findSentMessageWithUuid(uuid);
2178			if (message != null) {
2179				markMessage(message, status);
2180				return true;
2181			} else {
2182				return false;
2183			}
2184		}
2185	}
2186
2187	public void markMessage(Message message, int status) {
2188		if (status == Message.STATUS_SEND_FAILED
2189				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
2190				.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
2191			return;
2192		}
2193		message.setStatus(status);
2194		databaseBackend.updateMessage(message);
2195		updateConversationUi();
2196	}
2197
2198	public SharedPreferences getPreferences() {
2199		return PreferenceManager
2200				.getDefaultSharedPreferences(getApplicationContext());
2201	}
2202
2203	public boolean forceEncryption() {
2204		return getPreferences().getBoolean("force_encryption", false);
2205	}
2206
2207	public boolean confirmMessages() {
2208		return getPreferences().getBoolean("confirm_messages", true);
2209	}
2210
2211	public boolean sendChatStates() {
2212		return getPreferences().getBoolean("chat_states", false);
2213	}
2214
2215	public boolean saveEncryptedMessages() {
2216		return !getPreferences().getBoolean("dont_save_encrypted", false);
2217	}
2218
2219	public boolean indicateReceived() {
2220		return getPreferences().getBoolean("indicate_received", false);
2221	}
2222
2223	public int unreadCount() {
2224		int count = 0;
2225		for(Conversation conversation : getConversations()) {
2226			count += conversation.unreadCount();
2227		}
2228		return count;
2229	}
2230
2231
2232	public void showErrorToastInUi(int resId) {
2233		if (mOnShowErrorToast != null) {
2234			mOnShowErrorToast.onShowErrorToast(resId);
2235		}
2236	}
2237
2238	public void updateConversationUi() {
2239		if (mOnConversationUpdate != null) {
2240			mOnConversationUpdate.onConversationUpdate();
2241		}
2242	}
2243
2244	public void updateAccountUi() {
2245		if (mOnAccountUpdate != null) {
2246			mOnAccountUpdate.onAccountUpdate();
2247		}
2248	}
2249
2250	public void updateRosterUi() {
2251		if (mOnRosterUpdate != null) {
2252			mOnRosterUpdate.onRosterUpdate();
2253		}
2254	}
2255
2256	public void updateBlocklistUi(final OnUpdateBlocklist.Status status) {
2257		if (mOnUpdateBlocklist != null) {
2258			mOnUpdateBlocklist.OnUpdateBlocklist(status);
2259		}
2260	}
2261
2262	public void updateMucRosterUi() {
2263		if (mOnMucRosterUpdate != null) {
2264			mOnMucRosterUpdate.onMucRosterUpdate();
2265		}
2266	}
2267
2268	public Account findAccountByJid(final Jid accountJid) {
2269		for (Account account : this.accounts) {
2270			if (account.getJid().toBareJid().equals(accountJid.toBareJid())) {
2271				return account;
2272			}
2273		}
2274		return null;
2275	}
2276
2277	public Conversation findConversationByUuid(String uuid) {
2278		for (Conversation conversation : getConversations()) {
2279			if (conversation.getUuid().equals(uuid)) {
2280				return conversation;
2281			}
2282		}
2283		return null;
2284	}
2285
2286	public void markRead(final Conversation conversation) {
2287		mNotificationService.clear(conversation);
2288		conversation.markRead();
2289		updateUnreadCountBadge();
2290	}
2291
2292	public synchronized void updateUnreadCountBadge() {
2293		int count = unreadCount();
2294		if (unreadCount != count) {
2295			Log.d(Config.LOGTAG, "update unread count to " + count);
2296			if (count > 0) {
2297				ShortcutBadger.with(getApplicationContext()).count(count);
2298			} else {
2299				ShortcutBadger.with(getApplicationContext()).remove();
2300			}
2301			unreadCount = count;
2302		}
2303	}
2304
2305	public void sendReadMarker(final Conversation conversation) {
2306		final Message markable = conversation.getLatestMarkableMessage();
2307		this.markRead(conversation);
2308		if (confirmMessages() && markable != null && markable.getRemoteMsgId() != null) {
2309			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": sending read marker to " + markable.getCounterpart().toString());
2310			Account account = conversation.getAccount();
2311			final Jid to = markable.getCounterpart();
2312			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId());
2313			this.sendMessagePacket(conversation.getAccount(), packet);
2314		}
2315		updateConversationUi();
2316	}
2317
2318	public SecureRandom getRNG() {
2319		return this.mRandom;
2320	}
2321
2322	public MemorizingTrustManager getMemorizingTrustManager() {
2323		return this.mMemorizingTrustManager;
2324	}
2325
2326	public void setMemorizingTrustManager(MemorizingTrustManager trustManager) {
2327		this.mMemorizingTrustManager = trustManager;
2328	}
2329
2330	public void updateMemorizingTrustmanager() {
2331		final MemorizingTrustManager tm;
2332		final boolean dontTrustSystemCAs = getPreferences().getBoolean("dont_trust_system_cas", false);
2333		if (dontTrustSystemCAs) {
2334			 tm = new MemorizingTrustManager(getApplicationContext(), null);
2335		} else {
2336			tm = new MemorizingTrustManager(getApplicationContext());
2337		}
2338		setMemorizingTrustManager(tm);
2339	}
2340
2341	public PowerManager getPowerManager() {
2342		return this.pm;
2343	}
2344
2345	public LruCache<String, Bitmap> getBitmapCache() {
2346		return this.mBitmapCache;
2347	}
2348
2349	public void syncRosterToDisk(final Account account) {
2350		Runnable runnable = new Runnable() {
2351
2352			@Override
2353			public void run() {
2354				databaseBackend.writeRoster(account.getRoster());
2355			}
2356		};
2357		mDatabaseExecutor.execute(runnable);
2358
2359	}
2360
2361	public List<String> getKnownHosts() {
2362		final List<String> hosts = new ArrayList<>();
2363		for (final Account account : getAccounts()) {
2364			if (!hosts.contains(account.getServer().toString())) {
2365				hosts.add(account.getServer().toString());
2366			}
2367			for (final Contact contact : account.getRoster().getContacts()) {
2368				if (contact.showInRoster()) {
2369					final String server = contact.getServer().toString();
2370					if (server != null && !hosts.contains(server)) {
2371						hosts.add(server);
2372					}
2373				}
2374			}
2375		}
2376		return hosts;
2377	}
2378
2379	public List<String> getKnownConferenceHosts() {
2380		final ArrayList<String> mucServers = new ArrayList<>();
2381		for (final Account account : accounts) {
2382			if (account.getXmppConnection() != null) {
2383				final String server = account.getXmppConnection().getMucServer();
2384				if (server != null && !mucServers.contains(server)) {
2385					mucServers.add(server);
2386				}
2387			}
2388		}
2389		return mucServers;
2390	}
2391
2392	public void sendMessagePacket(Account account, MessagePacket packet) {
2393		XmppConnection connection = account.getXmppConnection();
2394		if (connection != null) {
2395			connection.sendMessagePacket(packet);
2396		}
2397	}
2398
2399	public void sendPresencePacket(Account account, PresencePacket packet) {
2400		XmppConnection connection = account.getXmppConnection();
2401		if (connection != null) {
2402			connection.sendPresencePacket(packet);
2403		}
2404	}
2405
2406	public void sendIqPacket(final Account account, final IqPacket packet, final OnIqPacketReceived callback) {
2407		final XmppConnection connection = account.getXmppConnection();
2408		if (connection != null) {
2409			connection.sendIqPacket(packet, callback);
2410		}
2411	}
2412
2413	public void sendPresence(final Account account) {
2414		sendPresencePacket(account, mPresenceGenerator.sendPresence(account));
2415	}
2416
2417	public void sendOfflinePresence(final Account account) {
2418		sendPresencePacket(account, mPresenceGenerator.sendOfflinePresence(account));
2419	}
2420
2421	public MessageGenerator getMessageGenerator() {
2422		return this.mMessageGenerator;
2423	}
2424
2425	public PresenceGenerator getPresenceGenerator() {
2426		return this.mPresenceGenerator;
2427	}
2428
2429	public IqGenerator getIqGenerator() {
2430		return this.mIqGenerator;
2431	}
2432
2433	public IqParser getIqParser() {
2434		return this.mIqParser;
2435	}
2436
2437	public JingleConnectionManager getJingleConnectionManager() {
2438		return this.mJingleConnectionManager;
2439	}
2440
2441	public MessageArchiveService getMessageArchiveService() {
2442		return this.mMessageArchiveService;
2443	}
2444
2445	public List<Contact> findContacts(Jid jid) {
2446		ArrayList<Contact> contacts = new ArrayList<>();
2447		for (Account account : getAccounts()) {
2448			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2449				Contact contact = account.getRoster().getContactFromRoster(jid);
2450				if (contact != null) {
2451					contacts.add(contact);
2452				}
2453			}
2454		}
2455		return contacts;
2456	}
2457
2458	public NotificationService getNotificationService() {
2459		return this.mNotificationService;
2460	}
2461
2462	public HttpConnectionManager getHttpConnectionManager() {
2463		return this.mHttpConnectionManager;
2464	}
2465
2466	public void resendFailedMessages(final Message message) {
2467		final Collection<Message> messages = new ArrayList<>();
2468		Message current = message;
2469		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
2470			messages.add(current);
2471			if (current.mergeable(current.next())) {
2472				current = current.next();
2473			} else {
2474				break;
2475			}
2476		}
2477		for (final Message msg : messages) {
2478			markMessage(msg, Message.STATUS_WAITING);
2479			this.resendMessage(msg);
2480		}
2481	}
2482
2483	public void clearConversationHistory(final Conversation conversation) {
2484		conversation.clearMessages();
2485		conversation.setHasMessagesLeftOnServer(false); //avoid messages getting loaded through mam
2486		new Thread(new Runnable() {
2487			@Override
2488			public void run() {
2489				databaseBackend.deleteMessagesInConversation(conversation);
2490			}
2491		}).start();
2492	}
2493
2494	public void sendBlockRequest(final Blockable blockable) {
2495		if (blockable != null && blockable.getBlockedJid() != null) {
2496			final Jid jid = blockable.getBlockedJid();
2497			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetBlockRequest(jid), new OnIqPacketReceived() {
2498
2499				@Override
2500				public void onIqPacketReceived(final Account account, final IqPacket packet) {
2501					if (packet.getType() == IqPacket.TYPE.RESULT) {
2502						account.getBlocklist().add(jid);
2503						updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
2504					}
2505				}
2506			});
2507		}
2508	}
2509
2510	public void sendUnblockRequest(final Blockable blockable) {
2511		if (blockable != null && blockable.getJid() != null) {
2512			final Jid jid = blockable.getBlockedJid();
2513			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetUnblockRequest(jid), new OnIqPacketReceived() {
2514				@Override
2515				public void onIqPacketReceived(final Account account, final IqPacket packet) {
2516					if (packet.getType() == IqPacket.TYPE.RESULT) {
2517						account.getBlocklist().remove(jid);
2518						updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
2519					}
2520				}
2521			});
2522		}
2523	}
2524
2525	public interface OnMoreMessagesLoaded {
2526		public void onMoreMessagesLoaded(int count, Conversation conversation);
2527
2528		public void informUser(int r);
2529	}
2530
2531	public interface OnAccountPasswordChanged {
2532		public void onPasswordChangeSucceeded();
2533
2534		public void onPasswordChangeFailed();
2535	}
2536
2537	public interface OnAffiliationChanged {
2538		public void onAffiliationChangedSuccessful(Jid jid);
2539
2540		public void onAffiliationChangeFailed(Jid jid, int resId);
2541	}
2542
2543	public interface OnRoleChanged {
2544		public void onRoleChangedSuccessful(String nick);
2545
2546		public void onRoleChangeFailed(String nick, int resid);
2547	}
2548
2549	public interface OnConversationUpdate {
2550		public void onConversationUpdate();
2551	}
2552
2553	public interface OnAccountUpdate {
2554		public void onAccountUpdate();
2555	}
2556
2557	public interface OnRosterUpdate {
2558		public void onRosterUpdate();
2559	}
2560
2561	public interface OnMucRosterUpdate {
2562		public void onMucRosterUpdate();
2563	}
2564
2565	public interface OnConferenceOptionsPushed {
2566		public void onPushSucceeded();
2567
2568		public void onPushFailed();
2569	}
2570
2571	public interface OnShowErrorToast {
2572		void onShowErrorToast(int resId);
2573	}
2574
2575	public class XmppConnectionBinder extends Binder {
2576		public XmppConnectionService getService() {
2577			return XmppConnectionService.this;
2578		}
2579	}
2580}