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.entities.Account;
  56import eu.siacs.conversations.entities.Blockable;
  57import eu.siacs.conversations.entities.Bookmark;
  58import eu.siacs.conversations.entities.Contact;
  59import eu.siacs.conversations.entities.Conversation;
  60import eu.siacs.conversations.entities.Transferable;
  61import eu.siacs.conversations.entities.TransferablePlaceholder;
  62import eu.siacs.conversations.entities.Message;
  63import eu.siacs.conversations.entities.MucOptions;
  64import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  65import eu.siacs.conversations.generator.IqGenerator;
  66import eu.siacs.conversations.generator.MessageGenerator;
  67import eu.siacs.conversations.generator.PresenceGenerator;
  68import eu.siacs.conversations.http.HttpConnectionManager;
  69import eu.siacs.conversations.parser.IqParser;
  70import eu.siacs.conversations.parser.MessageParser;
  71import eu.siacs.conversations.parser.PresenceParser;
  72import eu.siacs.conversations.persistance.DatabaseBackend;
  73import eu.siacs.conversations.persistance.FileBackend;
  74import eu.siacs.conversations.ui.UiCallback;
  75import eu.siacs.conversations.utils.CryptoHelper;
  76import eu.siacs.conversations.utils.ExceptionHelper;
  77import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
  78import eu.siacs.conversations.utils.PRNGFixes;
  79import eu.siacs.conversations.utils.PhoneHelper;
  80import eu.siacs.conversations.utils.SerialSingleThreadExecutor;
  81import eu.siacs.conversations.utils.Xmlns;
  82import eu.siacs.conversations.xml.Element;
  83import eu.siacs.conversations.xmpp.OnBindListener;
  84import eu.siacs.conversations.xmpp.OnContactStatusChanged;
  85import eu.siacs.conversations.xmpp.OnIqPacketReceived;
  86import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
  87import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
  88import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
  89import eu.siacs.conversations.xmpp.OnStatusChanged;
  90import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
  91import eu.siacs.conversations.xmpp.XmppConnection;
  92import eu.siacs.conversations.xmpp.chatstate.ChatState;
  93import eu.siacs.conversations.xmpp.forms.Data;
  94import eu.siacs.conversations.xmpp.forms.Field;
  95import eu.siacs.conversations.xmpp.jid.InvalidJidException;
  96import eu.siacs.conversations.xmpp.jid.Jid;
  97import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  98import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
  99import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
 100import eu.siacs.conversations.xmpp.pep.Avatar;
 101import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 102import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 103import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 104import me.leolin.shortcutbadger.ShortcutBadger;
 105
 106public class XmppConnectionService extends Service implements OnPhoneContactsLoadedListener {
 107
 108	public static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 109	public static final String ACTION_DISABLE_FOREGROUND = "disable_foreground";
 110	private static final String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
 111	public static final String ACTION_TRY_AGAIN = "try_again";
 112	public static final String ACTION_DISABLE_ACCOUNT = "disable_account";
 113	private ContentObserver contactObserver = new ContentObserver(null) {
 114		@Override
 115		public void onChange(boolean selfChange) {
 116			super.onChange(selfChange);
 117			Intent intent = new Intent(getApplicationContext(),
 118					XmppConnectionService.class);
 119			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 120			startService(intent);
 121		}
 122	};
 123
 124	private final SerialSingleThreadExecutor mFileAddingExecutor = new SerialSingleThreadExecutor();
 125	private final SerialSingleThreadExecutor mDatabaseExecutor = new SerialSingleThreadExecutor();
 126
 127	private final IBinder mBinder = new XmppConnectionBinder();
 128	private final List<Conversation> conversations = new CopyOnWriteArrayList<>();
 129	private final FileObserver fileObserver = new FileObserver(
 130			FileBackend.getConversationsImageDirectory()) {
 131
 132		@Override
 133		public void onEvent(int event, String path) {
 134			if (event == FileObserver.DELETE) {
 135				markFileDeleted(path.split("\\.")[0]);
 136			}
 137		}
 138	};
 139	private final OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 140
 141		@Override
 142		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 143			mJingleConnectionManager.deliverPacket(account, packet);
 144		}
 145	};
 146	private final OnBindListener mOnBindListener = new OnBindListener() {
 147
 148		@Override
 149		public void onBind(final Account account) {
 150			account.getRoster().clearPresences();
 151			account.pendingConferenceJoins.clear();
 152			account.pendingConferenceLeaves.clear();
 153			fetchRosterFromServer(account);
 154			fetchBookmarks(account);
 155			sendPresence(account);
 156			connectMultiModeConversations(account);
 157			updateConversationUi();
 158		}
 159	};
 160	private final OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 161
 162		@Override
 163		public void onMessageAcknowledged(Account account, String uuid) {
 164			for (final Conversation conversation : getConversations()) {
 165				if (conversation.getAccount() == account) {
 166					Message message = conversation.findUnsentMessageWithUuid(uuid);
 167					if (message != null) {
 168						markMessage(message, Message.STATUS_SEND);
 169						if (conversation.setLastMessageTransmitted(System.currentTimeMillis())) {
 170							databaseBackend.updateConversation(conversation);
 171						}
 172					}
 173				}
 174			}
 175		}
 176	};
 177	private final IqGenerator mIqGenerator = new IqGenerator(this);
 178	public DatabaseBackend databaseBackend;
 179	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 180
 181		@Override
 182		public void onContactStatusChanged(Contact contact, boolean online) {
 183			Conversation conversation = find(getConversations(), contact);
 184			if (conversation != null) {
 185				if (online) {
 186					conversation.endOtrIfNeeded();
 187					if (contact.getPresences().size() == 1) {
 188						sendUnsentMessages(conversation);
 189					}
 190				} else {
 191					if (contact.getPresences().size() >= 1) {
 192						if (conversation.hasValidOtrSession()) {
 193							String otrResource = conversation.getOtrSession().getSessionID().getUserID();
 194							if (!(Arrays.asList(contact.getPresences().asStringArray()).contains(otrResource))) {
 195								conversation.endOtrIfNeeded();
 196							}
 197						}
 198					} else {
 199						conversation.endOtrIfNeeded();
 200					}
 201				}
 202			}
 203		}
 204	};
 205	private FileBackend fileBackend = new FileBackend(this);
 206	private MemorizingTrustManager mMemorizingTrustManager;
 207	private NotificationService mNotificationService = new NotificationService(
 208			this);
 209	private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 210	private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 211	private IqParser mIqParser = new IqParser(this);
 212	private OnIqPacketReceived mDefaultIqHandler = new OnIqPacketReceived() {
 213		@Override
 214		public void onIqPacketReceived(Account account, IqPacket packet) {
 215			if (packet.getType() == IqPacket.TYPE.ERROR) {
 216				Element error = packet.findChild("error");
 217				String text = error != null ? error.findChildContent("text") : null;
 218				if (text != null) {
 219					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": received iq error - "+text);
 220				}
 221			}
 222		}
 223	};
 224	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 225	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 226	private List<Account> accounts;
 227	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 228			this);
 229	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 230			this);
 231	private AvatarService mAvatarService = new AvatarService(this);
 232	private final List<String> mInProgressAvatarFetches = new ArrayList<>();
 233	private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 234	private OnConversationUpdate mOnConversationUpdate = null;
 235	private int convChangedListenerCount = 0;
 236	private OnShowErrorToast mOnShowErrorToast = null;
 237	private int showErrorToastListenerCount = 0;
 238	private int unreadCount = -1;
 239	private OnAccountUpdate mOnAccountUpdate = null;
 240	private OnStatusChanged statusListener = new OnStatusChanged() {
 241
 242		@Override
 243		public void onStatusChanged(Account account) {
 244			XmppConnection connection = account.getXmppConnection();
 245			if (mOnAccountUpdate != null) {
 246				mOnAccountUpdate.onAccountUpdate();
 247			}
 248			if (account.getStatus() == Account.State.ONLINE) {
 249				for (Conversation conversation : account.pendingConferenceLeaves) {
 250					leaveMuc(conversation);
 251				}
 252				for (Conversation conversation : account.pendingConferenceJoins) {
 253					joinMuc(conversation);
 254				}
 255				mMessageArchiveService.executePendingQueries(account);
 256				mJingleConnectionManager.cancelInTransmission();
 257				List<Conversation> conversations = getConversations();
 258				for (Conversation conversation : conversations) {
 259					if (conversation.getAccount() == account) {
 260						conversation.startOtrIfNeeded();
 261						sendUnsentMessages(conversation);
 262					}
 263				}
 264				if (connection != null && connection.getFeatures().csi()) {
 265					if (checkListeners()) {
 266						Log.d(Config.LOGTAG, account.getJid().toBareJid()
 267								+ " sending csi//inactive");
 268						connection.sendInactive();
 269					} else {
 270						Log.d(Config.LOGTAG, account.getJid().toBareJid()
 271								+ " sending csi//active");
 272						connection.sendActive();
 273					}
 274				}
 275				syncDirtyContacts(account);
 276				account.getAxolotlService().publishOwnDeviceIdIfNeeded();
 277				account.getAxolotlService().publishBundlesIfNeeded();
 278
 279				scheduleWakeUpCall(Config.PING_MAX_INTERVAL, account.getUuid().hashCode());
 280			} else if (account.getStatus() == Account.State.OFFLINE) {
 281				resetSendingToWaiting(account);
 282				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 283					int timeToReconnect = mRandom.nextInt(50) + 10;
 284					scheduleWakeUpCall(timeToReconnect,account.getUuid().hashCode());
 285				}
 286			} else if (account.getStatus() == Account.State.REGISTRATION_SUCCESSFUL) {
 287				databaseBackend.updateAccount(account);
 288				reconnectAccount(account, true);
 289			} else if ((account.getStatus() != Account.State.CONNECTING)
 290					&& (account.getStatus() != Account.State.NO_INTERNET)) {
 291				if (connection != null) {
 292					int next = connection.getTimeToNextAttempt();
 293					Log.d(Config.LOGTAG, account.getJid().toBareJid()
 294							+ ": error connecting account. try again in "
 295							+ next + "s for the "
 296							+ (connection.getAttempt() + 1) + " time");
 297					scheduleWakeUpCall(next,account.getUuid().hashCode());
 298				}
 299					}
 300			getNotificationService().updateErrorNotification();
 301		}
 302	};
 303	private int accountChangedListenerCount = 0;
 304	private OnRosterUpdate mOnRosterUpdate = null;
 305	private OnUpdateBlocklist mOnUpdateBlocklist = null;
 306	private int updateBlocklistListenerCount = 0;
 307	private int rosterChangedListenerCount = 0;
 308	private OnMucRosterUpdate mOnMucRosterUpdate = null;
 309	private int mucRosterChangedListenerCount = 0;
 310	private SecureRandom mRandom;
 311	private OpenPgpServiceConnection pgpServiceConnection;
 312	private PgpEngine mPgpEngine = null;
 313	private WakeLock wakeLock;
 314	private PowerManager pm;
 315	private LruCache<String, Bitmap> mBitmapCache;
 316	private Thread mPhoneContactMergerThread;
 317
 318	private boolean mRestoredFromDatabase = false;
 319	public boolean areMessagesInitialized() {
 320		return this.mRestoredFromDatabase;
 321	}
 322
 323	public PgpEngine getPgpEngine() {
 324		if (pgpServiceConnection.isBound()) {
 325			if (this.mPgpEngine == null) {
 326				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 327							getApplicationContext(),
 328							pgpServiceConnection.getService()), this);
 329			}
 330			return mPgpEngine;
 331		} else {
 332			return null;
 333		}
 334
 335	}
 336
 337	public FileBackend getFileBackend() {
 338		return this.fileBackend;
 339	}
 340
 341	public AvatarService getAvatarService() {
 342		return this.mAvatarService;
 343	}
 344
 345	public void attachLocationToConversation(final Conversation conversation,
 346											 final Uri uri,
 347											 final UiCallback<Message> callback) {
 348		int encryption = conversation.getNextEncryption(forceEncryption());
 349		if (encryption == Message.ENCRYPTION_PGP) {
 350			encryption = Message.ENCRYPTION_DECRYPTED;
 351		}
 352		Message message = new Message(conversation,uri.toString(),encryption);
 353		if (conversation.getNextCounterpart() != null) {
 354			message.setCounterpart(conversation.getNextCounterpart());
 355		}
 356		if (encryption == Message.ENCRYPTION_DECRYPTED) {
 357			getPgpEngine().encrypt(message, callback);
 358		} else {
 359			callback.success(message);
 360		}
 361	}
 362
 363	public void attachFileToConversation(final Conversation conversation,
 364			final Uri uri,
 365			final UiCallback<Message> callback) {
 366		final Message message;
 367		if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 368			message = new Message(conversation, "",
 369					Message.ENCRYPTION_DECRYPTED);
 370		} else {
 371			message = new Message(conversation, "",
 372					conversation.getNextEncryption(forceEncryption()));
 373		}
 374		message.setCounterpart(conversation.getNextCounterpart());
 375		message.setType(Message.TYPE_FILE);
 376		String path = getFileBackend().getOriginalPath(uri);
 377		if (path!=null) {
 378			message.setRelativeFilePath(path);
 379			getFileBackend().updateFileParams(message);
 380			if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 381				getPgpEngine().encrypt(message, callback);
 382			} else {
 383				callback.success(message);
 384			}
 385		} else {
 386			mFileAddingExecutor.execute(new Runnable() {
 387				@Override
 388				public void run() {
 389					try {
 390						getFileBackend().copyFileToPrivateStorage(message, uri);
 391						getFileBackend().updateFileParams(message);
 392						if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 393							getPgpEngine().encrypt(message, callback);
 394						} else {
 395							callback.success(message);
 396						}
 397					} catch (FileBackend.FileCopyException e) {
 398						callback.error(e.getResId(), message);
 399					}
 400				}
 401			});
 402		}
 403	}
 404
 405	public void attachImageToConversation(final Conversation conversation,
 406			final Uri uri, final UiCallback<Message> callback) {
 407		final Message message;
 408		if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 409			message = new Message(conversation, "",
 410					Message.ENCRYPTION_DECRYPTED);
 411		} else {
 412			message = new Message(conversation, "",
 413					conversation.getNextEncryption(forceEncryption()));
 414		}
 415		message.setCounterpart(conversation.getNextCounterpart());
 416		message.setType(Message.TYPE_IMAGE);
 417		mFileAddingExecutor.execute(new Runnable() {
 418
 419			@Override
 420			public void run() {
 421				try {
 422					getFileBackend().copyImageToPrivateStorage(message, uri);
 423					if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 424						getPgpEngine().encrypt(message, callback);
 425					} else {
 426						callback.success(message);
 427					}
 428				} catch (final FileBackend.FileCopyException e) {
 429					callback.error(e.getResId(), message);
 430				}
 431			}
 432		});
 433	}
 434
 435	public Conversation find(Bookmark bookmark) {
 436		return find(bookmark.getAccount(), bookmark.getJid());
 437	}
 438
 439	public Conversation find(final Account account, final Jid jid) {
 440		return find(getConversations(), account, jid);
 441	}
 442
 443	@Override
 444	public int onStartCommand(Intent intent, int flags, int startId) {
 445		final String action = intent == null ? null : intent.getAction();
 446		if (action != null) {
 447			switch (action) {
 448				case ConnectivityManager.CONNECTIVITY_ACTION:
 449					if (hasInternetConnection() && Config.RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE) {
 450						resetAllAttemptCounts(true);
 451					}
 452					break;
 453				case ACTION_MERGE_PHONE_CONTACTS:
 454					if (mRestoredFromDatabase) {
 455						PhoneHelper.loadPhoneContacts(getApplicationContext(),
 456								new CopyOnWriteArrayList<Bundle>(),
 457								this);
 458					}
 459					return START_STICKY;
 460				case Intent.ACTION_SHUTDOWN:
 461					logoutAndSave();
 462					return START_NOT_STICKY;
 463				case ACTION_CLEAR_NOTIFICATION:
 464					mNotificationService.clear();
 465					break;
 466				case ACTION_DISABLE_FOREGROUND:
 467					getPreferences().edit().putBoolean("keep_foreground_service",false).commit();
 468					toggleForegroundService();
 469					break;
 470				case ACTION_TRY_AGAIN:
 471					resetAllAttemptCounts(false);
 472					break;
 473				case ACTION_DISABLE_ACCOUNT:
 474					try {
 475						String jid = intent.getStringExtra("account");
 476						Account account = jid == null ? null : findAccountByJid(Jid.fromString(jid));
 477						if (account != null) {
 478							account.setOption(Account.OPTION_DISABLED,true);
 479							updateAccount(account);
 480						}
 481					} catch (final InvalidJidException ignored) {
 482						break;
 483					}
 484					break;
 485			}
 486		}
 487		this.wakeLock.acquire();
 488
 489		for (Account account : accounts) {
 490			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 491				if (!hasInternetConnection()) {
 492					account.setStatus(Account.State.NO_INTERNET);
 493					if (statusListener != null) {
 494						statusListener.onStatusChanged(account);
 495					}
 496				} else {
 497					if (account.getStatus() == Account.State.NO_INTERNET) {
 498						account.setStatus(Account.State.OFFLINE);
 499						if (statusListener != null) {
 500							statusListener.onStatusChanged(account);
 501						}
 502					}
 503					if (account.getStatus() == Account.State.ONLINE) {
 504						long lastReceived = account.getXmppConnection().getLastPacketReceived();
 505						long lastSent = account.getXmppConnection().getLastPingSent();
 506						long pingInterval = "ui".equals(action) ? Config.PING_MIN_INTERVAL * 1000 : Config.PING_MAX_INTERVAL * 1000;
 507						long msToNextPing = (Math.max(lastReceived,lastSent) + pingInterval) - SystemClock.elapsedRealtime();
 508						long pingTimeoutIn = (lastSent + Config.PING_TIMEOUT * 1000) - SystemClock.elapsedRealtime();
 509						if (lastSent > lastReceived) {
 510							if (pingTimeoutIn < 0) {
 511								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ping timeout");
 512								this.reconnectAccount(account, true);
 513							} else {
 514								int secs = (int) (pingTimeoutIn / 1000);
 515								this.scheduleWakeUpCall(secs,account.getUuid().hashCode());
 516							}
 517						} else if (msToNextPing <= 0) {
 518							account.getXmppConnection().sendPing();
 519							Log.d(Config.LOGTAG, account.getJid().toBareJid()+" send ping");
 520							this.scheduleWakeUpCall(Config.PING_TIMEOUT,account.getUuid().hashCode());
 521						} else {
 522							this.scheduleWakeUpCall((int) (msToNextPing / 1000), account.getUuid().hashCode());
 523						}
 524					} else if (account.getStatus() == Account.State.OFFLINE) {
 525						reconnectAccount(account,true);
 526					} else if (account.getStatus() == Account.State.CONNECTING) {
 527						long timeout = Config.CONNECT_TIMEOUT - ((SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000);
 528						if (timeout < 0) {
 529							Log.d(Config.LOGTAG, account.getJid() + ": time out during connect reconnecting");
 530							reconnectAccount(account, true);
 531						} else {
 532							scheduleWakeUpCall((int) timeout,account.getUuid().hashCode());
 533						}
 534					} else {
 535						if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 536							reconnectAccount(account, true);
 537						}
 538					}
 539
 540				}
 541				if (mOnAccountUpdate != null) {
 542					mOnAccountUpdate.onAccountUpdate();
 543				}
 544			}
 545		}
 546		/*PowerManager pm = (PowerManager) this.getSystemService(Context.POWER_SERVICE);
 547			if (!pm.isScreenOn()) {
 548			removeStaleListeners();
 549			}*/
 550		if (wakeLock.isHeld()) {
 551			try {
 552				wakeLock.release();
 553			} catch (final RuntimeException ignored) {
 554			}
 555		}
 556		return START_STICKY;
 557	}
 558
 559	private void resetAllAttemptCounts(boolean reallyAll) {
 560		Log.d(Config.LOGTAG,"resetting all attepmt counts");
 561		for(Account account : accounts) {
 562			if (account.hasErrorStatus() || reallyAll) {
 563				final XmppConnection connection = account.getXmppConnection();
 564				if (connection != null) {
 565					connection.resetAttemptCount();
 566				}
 567			}
 568		}
 569	}
 570
 571	public boolean hasInternetConnection() {
 572		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 573			.getSystemService(Context.CONNECTIVITY_SERVICE);
 574		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 575		return activeNetwork != null && activeNetwork.isConnected();
 576	}
 577
 578	@SuppressLint("TrulyRandom")
 579	@Override
 580	public void onCreate() {
 581		ExceptionHelper.init(getApplicationContext());
 582		PRNGFixes.apply();
 583		this.mRandom = new SecureRandom();
 584		updateMemorizingTrustmanager();
 585		final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
 586		final int cacheSize = maxMemory / 8;
 587		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
 588			@Override
 589			protected int sizeOf(final String key, final Bitmap bitmap) {
 590				return bitmap.getByteCount() / 1024;
 591			}
 592		};
 593
 594		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 595		this.accounts = databaseBackend.getAccounts();
 596
 597		for (final Account account : this.accounts) {
 598			account.initAccountServices(this);
 599		}
 600		restoreFromDatabase();
 601
 602		getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 603		this.fileObserver.startWatching();
 604		this.pgpServiceConnection = new OpenPgpServiceConnection(getApplicationContext(), "org.sufficientlysecure.keychain");
 605		this.pgpServiceConnection.bindToService();
 606
 607		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 608		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,"XmppConnectionService");
 609		toggleForegroundService();
 610		updateUnreadCountBadge();
 611	}
 612
 613	public void toggleForegroundService() {
 614		if (getPreferences().getBoolean("keep_foreground_service",false)) {
 615			startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, this.mNotificationService.createForegroundNotification());
 616		} else {
 617			stopForeground(true);
 618		}
 619	}
 620
 621	@Override
 622	public void onTaskRemoved(final Intent rootIntent) {
 623		super.onTaskRemoved(rootIntent);
 624		if (!getPreferences().getBoolean("keep_foreground_service",false)) {
 625			this.logoutAndSave();
 626		}
 627	}
 628
 629	private void logoutAndSave() {
 630		for (final Account account : accounts) {
 631			databaseBackend.writeRoster(account.getRoster());
 632			if (account.getXmppConnection() != null) {
 633				disconnect(account, false);
 634			}
 635		}
 636		Context context = getApplicationContext();
 637		AlarmManager alarmManager = (AlarmManager) context
 638				.getSystemService(Context.ALARM_SERVICE);
 639		Intent intent = new Intent(context, EventReceiver.class);
 640		alarmManager.cancel(PendingIntent.getBroadcast(context, 0, intent, 0));
 641		Log.d(Config.LOGTAG, "good bye");
 642		stopSelf();
 643	}
 644
 645	protected void scheduleWakeUpCall(int seconds, int requestCode) {
 646		final long timeToWake = SystemClock.elapsedRealtime() + (seconds < 0 ? 1 : seconds + 1) * 1000;
 647
 648		Context context = getApplicationContext();
 649		AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
 650
 651		Intent intent = new Intent(context, EventReceiver.class);
 652		intent.setAction("ping");
 653		PendingIntent alarmIntent = PendingIntent.getBroadcast(context, requestCode, intent, 0);
 654		alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, alarmIntent);
 655	}
 656
 657	public XmppConnection createConnection(final Account account) {
 658		final SharedPreferences sharedPref = getPreferences();
 659		account.setResource(sharedPref.getString("resource", "mobile")
 660				.toLowerCase(Locale.getDefault()));
 661		final XmppConnection connection = new XmppConnection(account, this);
 662		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
 663		connection.setOnStatusChangedListener(this.statusListener);
 664		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
 665		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
 666		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 667		connection.setOnBindListener(this.mOnBindListener);
 668		connection.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
 669		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mMessageArchiveService);
 670		return connection;
 671	}
 672
 673	public void sendChatState(Conversation conversation) {
 674		if (sendChatStates()) {
 675			MessagePacket packet = mMessageGenerator.generateChatState(conversation);
 676			sendMessagePacket(conversation.getAccount(), packet);
 677		}
 678	}
 679
 680	private void sendFileMessage(final Message message) {
 681		Log.d(Config.LOGTAG, "send file message");
 682		final Account account = message.getConversation().getAccount();
 683		final XmppConnection connection = account.getXmppConnection();
 684		if (connection != null && connection.getFeatures().httpUpload()) {
 685			mHttpConnectionManager.createNewUploadConnection(message);
 686		} else {
 687			mJingleConnectionManager.createNewConnection(message);
 688		}
 689	}
 690
 691	public void sendMessage(final Message message) {
 692		sendMessage(message, false);
 693	}
 694
 695	private void sendMessage(final Message message, final boolean resend) {
 696		final Account account = message.getConversation().getAccount();
 697		final Conversation conversation = message.getConversation();
 698		account.deactivateGracePeriod();
 699		MessagePacket packet = null;
 700		boolean saveInDb = true;
 701		message.setStatus(Message.STATUS_WAITING);
 702
 703		if (!resend && message.getEncryption() != Message.ENCRYPTION_OTR) {
 704			message.getConversation().endOtrIfNeeded();
 705			message.getConversation().findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR,
 706					new Conversation.OnMessageFound() {
 707				@Override
 708				public void onMessageFound(Message message) {
 709					markMessage(message,Message.STATUS_SEND_FAILED);
 710				}
 711			});
 712		}
 713
 714		if (account.isOnlineAndConnected()) {
 715			switch (message.getEncryption()) {
 716				case Message.ENCRYPTION_NONE:
 717					if (message.needsUploading()) {
 718						if (account.httpUploadAvailable() || message.fixCounterpart()) {
 719							this.sendFileMessage(message);
 720						} else {
 721							break;
 722						}
 723					} else {
 724						packet = mMessageGenerator.generateChat(message,resend);
 725					}
 726					break;
 727				case Message.ENCRYPTION_PGP:
 728				case Message.ENCRYPTION_DECRYPTED:
 729					if (message.needsUploading()) {
 730						if (account.httpUploadAvailable() || message.fixCounterpart()) {
 731							this.sendFileMessage(message);
 732						} else {
 733							break;
 734						}
 735					} else {
 736						packet = mMessageGenerator.generatePgpChat(message,resend);
 737					}
 738					break;
 739				case Message.ENCRYPTION_OTR:
 740					SessionImpl otrSession = conversation.getOtrSession();
 741					if (otrSession != null && otrSession.getSessionStatus() == SessionStatus.ENCRYPTED) {
 742						try {
 743							message.setCounterpart(Jid.fromSessionID(otrSession.getSessionID()));
 744						} catch (InvalidJidException e) {
 745							break;
 746						}
 747						if (message.needsUploading()) {
 748							mJingleConnectionManager.createNewConnection(message);
 749						} else {
 750							packet = mMessageGenerator.generateOtrChat(message,resend);
 751						}
 752					} else if (otrSession == null) {
 753						if (message.fixCounterpart()) {
 754							conversation.startOtrSession(message.getCounterpart().getResourcepart(), true);
 755						} else {
 756							break;
 757						}
 758					}
 759					break;
 760				case Message.ENCRYPTION_AXOLOTL:
 761					message.setStatus(Message.STATUS_WAITING);
 762					packet = account.getAxolotlService().fetchPacketFromCache(message);
 763					if (packet == null && account.isOnlineAndConnected()) {
 764						account.getAxolotlService().prepareMessage(message);
 765					}
 766					break;
 767
 768			}
 769			if (packet != null) {
 770				if (account.getXmppConnection().getFeatures().sm() || conversation.getMode() == Conversation.MODE_MULTI) {
 771					message.setStatus(Message.STATUS_UNSEND);
 772				} else {
 773					message.setStatus(Message.STATUS_SEND);
 774				}
 775			}
 776		} else {
 777			switch(message.getEncryption()) {
 778				case Message.ENCRYPTION_DECRYPTED:
 779					if (!message.needsUploading()) {
 780						String pgpBody = message.getEncryptedBody();
 781						String decryptedBody = message.getBody();
 782						message.setBody(pgpBody);
 783						message.setEncryption(Message.ENCRYPTION_PGP);
 784						databaseBackend.createMessage(message);
 785						saveInDb = false;
 786						message.setBody(decryptedBody);
 787						message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 788					}
 789					break;
 790				case Message.ENCRYPTION_OTR:
 791					if (!conversation.hasValidOtrSession() && message.getCounterpart() != null) {
 792						conversation.startOtrSession(message.getCounterpart().getResourcepart(), false);
 793					}
 794					break;
 795			}
 796		}
 797
 798		if (resend) {
 799			if (packet != null) {
 800				if (account.getXmppConnection().getFeatures().sm() || conversation.getMode() == Conversation.MODE_MULTI) {
 801					markMessage(message,Message.STATUS_UNSEND);
 802				} else {
 803					markMessage(message,Message.STATUS_SEND);
 804				}
 805			}
 806		} else {
 807			conversation.add(message);
 808			if (saveInDb && (message.getEncryption() == Message.ENCRYPTION_NONE || saveEncryptedMessages())) {
 809				databaseBackend.createMessage(message);
 810			}
 811			updateConversationUi();
 812		}
 813		if (packet != null) {
 814			if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
 815				if (this.sendChatStates()) {
 816					packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
 817				}
 818			}
 819			sendMessagePacket(account, packet);
 820		}
 821	}
 822
 823	private void sendUnsentMessages(final Conversation conversation) {
 824		conversation.findWaitingMessages(new Conversation.OnMessageFound() {
 825
 826			@Override
 827			public void onMessageFound(Message message) {
 828				resendMessage(message);
 829			}
 830		});
 831	}
 832
 833	public void resendMessage(final Message message) {
 834		sendMessage(message, true);
 835	}
 836
 837	public void fetchRosterFromServer(final Account account) {
 838		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
 839		if (!"".equals(account.getRosterVersion())) {
 840			Log.d(Config.LOGTAG, account.getJid().toBareJid()
 841					+ ": fetching roster version " + account.getRosterVersion());
 842		} else {
 843			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching roster");
 844		}
 845		iqPacket.query(Xmlns.ROSTER).setAttribute("ver",account.getRosterVersion());
 846		sendIqPacket(account,iqPacket,mIqParser);
 847	}
 848
 849	public void fetchBookmarks(final Account account) {
 850		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
 851		final Element query = iqPacket.query("jabber:iq:private");
 852		query.addChild("storage", "storage:bookmarks");
 853		final OnIqPacketReceived callback = new OnIqPacketReceived() {
 854
 855			@Override
 856			public void onIqPacketReceived(final Account account, final IqPacket packet) {
 857				final Element query = packet.query();
 858				final List<Bookmark> bookmarks = new CopyOnWriteArrayList<>();
 859				final Element storage = query.findChild("storage",
 860						"storage:bookmarks");
 861				if (storage != null) {
 862					for (final Element item : storage.getChildren()) {
 863						if (item.getName().equals("conference")) {
 864							final Bookmark bookmark = Bookmark.parse(item, account);
 865							bookmarks.add(bookmark);
 866							Conversation conversation = find(bookmark);
 867							if (conversation != null) {
 868								conversation.setBookmark(bookmark);
 869							} else if (bookmark.autojoin() && bookmark.getJid() != null) {
 870								conversation = findOrCreateConversation(
 871										account, bookmark.getJid(), true);
 872								conversation.setBookmark(bookmark);
 873								joinMuc(conversation);
 874							}
 875						}
 876					}
 877				}
 878				account.setBookmarks(bookmarks);
 879			}
 880		};
 881		sendIqPacket(account, iqPacket, callback);
 882	}
 883
 884	public void pushBookmarks(Account account) {
 885		IqPacket iqPacket = new IqPacket(IqPacket.TYPE.SET);
 886		Element query = iqPacket.query("jabber:iq:private");
 887		Element storage = query.addChild("storage", "storage:bookmarks");
 888		for (Bookmark bookmark : account.getBookmarks()) {
 889			storage.addChild(bookmark);
 890		}
 891		sendIqPacket(account, iqPacket, mDefaultIqHandler);
 892	}
 893
 894	public void onPhoneContactsLoaded(final List<Bundle> phoneContacts) {
 895		if (mPhoneContactMergerThread != null) {
 896			mPhoneContactMergerThread.interrupt();
 897		}
 898		mPhoneContactMergerThread = new Thread(new Runnable() {
 899			@Override
 900			public void run() {
 901				Log.d(Config.LOGTAG,"start merging phone contacts with roster");
 902				for (Account account : accounts) {
 903					List<Contact> withSystemAccounts = account.getRoster().getWithSystemAccounts();
 904					for (Bundle phoneContact : phoneContacts) {
 905						if (Thread.interrupted()) {
 906							Log.d(Config.LOGTAG,"interrupted merging phone contacts");
 907							return;
 908						}
 909						Jid jid;
 910						try {
 911							jid = Jid.fromString(phoneContact.getString("jid"));
 912						} catch (final InvalidJidException e) {
 913							continue;
 914						}
 915						final Contact contact = account.getRoster().getContact(jid);
 916						String systemAccount = phoneContact.getInt("phoneid")
 917							+ "#"
 918							+ phoneContact.getString("lookup");
 919						contact.setSystemAccount(systemAccount);
 920						if (contact.setPhotoUri(phoneContact.getString("photouri"))) {
 921							getAvatarService().clear(contact);
 922						}
 923						contact.setSystemName(phoneContact.getString("displayname"));
 924						withSystemAccounts.remove(contact);
 925					}
 926					for(Contact contact : withSystemAccounts) {
 927						contact.setSystemAccount(null);
 928						contact.setSystemName(null);
 929						if (contact.setPhotoUri(null)) {
 930							getAvatarService().clear(contact);
 931						}
 932					}
 933				}
 934				Log.d(Config.LOGTAG,"finished merging phone contacts");
 935				updateAccountUi();
 936			}
 937		});
 938		mPhoneContactMergerThread.start();
 939	}
 940
 941	private void restoreFromDatabase() {
 942		synchronized (this.conversations) {
 943			final Map<String, Account> accountLookupTable = new Hashtable<>();
 944			for (Account account : this.accounts) {
 945				accountLookupTable.put(account.getUuid(), account);
 946			}
 947			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
 948			for (Conversation conversation : this.conversations) {
 949				Account account = accountLookupTable.get(conversation.getAccountUuid());
 950				conversation.setAccount(account);
 951			}
 952			Runnable runnable =new Runnable() {
 953				@Override
 954				public void run() {
 955					Log.d(Config.LOGTAG,"restoring roster");
 956					for(Account account : accounts) {
 957						databaseBackend.readRoster(account.getRoster());
 958					}
 959					getBitmapCache().evictAll();
 960					Looper.prepare();
 961					PhoneHelper.loadPhoneContacts(getApplicationContext(),
 962							new CopyOnWriteArrayList<Bundle>(),
 963							XmppConnectionService.this);
 964					Log.d(Config.LOGTAG,"restoring messages");
 965					for (Conversation conversation : conversations) {
 966						conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
 967						checkDeletedFiles(conversation);
 968					}
 969					mRestoredFromDatabase = true;
 970					Log.d(Config.LOGTAG,"restored all messages");
 971					updateConversationUi();
 972				}
 973			};
 974			mDatabaseExecutor.execute(runnable);
 975		}
 976	}
 977
 978	public List<Conversation> getConversations() {
 979		return this.conversations;
 980	}
 981
 982	private void checkDeletedFiles(Conversation conversation) {
 983		conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
 984
 985			@Override
 986			public void onMessageFound(Message message) {
 987				if (!getFileBackend().isFileAvailable(message)) {
 988					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
 989				}
 990			}
 991		});
 992	}
 993
 994	private void markFileDeleted(String uuid) {
 995		for (Conversation conversation : getConversations()) {
 996			Message message = conversation.findMessageWithFileAndUuid(uuid);
 997			if (message != null) {
 998				if (!getFileBackend().isFileAvailable(message)) {
 999					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1000					updateConversationUi();
1001				}
1002				return;
1003			}
1004		}
1005	}
1006
1007	public void populateWithOrderedConversations(final List<Conversation> list) {
1008		populateWithOrderedConversations(list, true);
1009	}
1010
1011	public void populateWithOrderedConversations(final List<Conversation> list, boolean includeNoFileUpload) {
1012		list.clear();
1013		if (includeNoFileUpload) {
1014			list.addAll(getConversations());
1015		} else {
1016			for (Conversation conversation : getConversations()) {
1017				if (conversation.getMode() == Conversation.MODE_SINGLE
1018						|| conversation.getAccount().httpUploadAvailable()) {
1019					list.add(conversation);
1020				}
1021			}
1022		}
1023		Collections.sort(list, new Comparator<Conversation>() {
1024			@Override
1025			public int compare(Conversation lhs, Conversation rhs) {
1026				Message left = lhs.getLatestMessage();
1027				Message right = rhs.getLatestMessage();
1028				if (left.getTimeSent() > right.getTimeSent()) {
1029					return -1;
1030				} else if (left.getTimeSent() < right.getTimeSent()) {
1031					return 1;
1032				} else {
1033					return 0;
1034				}
1035			}
1036		});
1037	}
1038
1039	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
1040		Log.d(Config.LOGTAG, "load more messages for " + conversation.getName() + " prior to " + MessageGenerator.getTimestamp(timestamp));
1041		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation,callback)) {
1042			return;
1043		}
1044		Runnable runnable = new Runnable() {
1045			@Override
1046			public void run() {
1047				final Account account = conversation.getAccount();
1048				List<Message> messages = databaseBackend.getMessages(conversation, 50,timestamp);
1049				if (messages.size() > 0) {
1050					conversation.addAll(0, messages);
1051					checkDeletedFiles(conversation);
1052					callback.onMoreMessagesLoaded(messages.size(), conversation);
1053				} else if (conversation.hasMessagesLeftOnServer()
1054						&& account.isOnlineAndConnected()
1055						&& account.getXmppConnection().getFeatures().mam()) {
1056					MessageArchiveService.Query query = getMessageArchiveService().query(conversation,0,timestamp - 1);
1057					if (query != null) {
1058						query.setCallback(callback);
1059					}
1060					callback.informUser(R.string.fetching_history_from_server);
1061				}
1062			}
1063		};
1064		mDatabaseExecutor.execute(runnable);
1065	}
1066
1067	public List<Account> getAccounts() {
1068		return this.accounts;
1069	}
1070
1071	public Conversation find(final Iterable<Conversation> haystack, final Contact contact) {
1072		for (final Conversation conversation : haystack) {
1073			if (conversation.getContact() == contact) {
1074				return conversation;
1075			}
1076		}
1077		return null;
1078	}
1079
1080	public Conversation find(final Iterable<Conversation> haystack, final Account account, final Jid jid) {
1081		if (jid == null) {
1082			return null;
1083		}
1084		for (final Conversation conversation : haystack) {
1085			if ((account == null || conversation.getAccount() == account)
1086					&& (conversation.getJid().toBareJid().equals(jid.toBareJid()))) {
1087				return conversation;
1088			}
1089		}
1090		return null;
1091	}
1092
1093	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc) {
1094		return this.findOrCreateConversation(account, jid, muc, null);
1095	}
1096
1097	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final MessageArchiveService.Query query) {
1098		synchronized (this.conversations) {
1099			Conversation conversation = find(account, jid);
1100			if (conversation != null) {
1101				return conversation;
1102			}
1103			conversation = databaseBackend.findConversation(account, jid);
1104			if (conversation != null) {
1105				conversation.setStatus(Conversation.STATUS_AVAILABLE);
1106				conversation.setAccount(account);
1107				if (muc) {
1108					conversation.setMode(Conversation.MODE_MULTI);
1109					conversation.setContactJid(jid);
1110				} else {
1111					conversation.setMode(Conversation.MODE_SINGLE);
1112					conversation.setContactJid(jid.toBareJid());
1113				}
1114				conversation.setNextEncryption(-1);
1115				conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1116				this.databaseBackend.updateConversation(conversation);
1117			} else {
1118				String conversationName;
1119				Contact contact = account.getRoster().getContact(jid);
1120				if (contact != null) {
1121					conversationName = contact.getDisplayName();
1122				} else {
1123					conversationName = jid.getLocalpart();
1124				}
1125				if (muc) {
1126					conversation = new Conversation(conversationName, account, jid,
1127							Conversation.MODE_MULTI);
1128				} else {
1129					conversation = new Conversation(conversationName, account, jid.toBareJid(),
1130							Conversation.MODE_SINGLE);
1131				}
1132				this.databaseBackend.createConversation(conversation);
1133			}
1134			if (account.getXmppConnection() != null
1135					&& account.getXmppConnection().getFeatures().mam()
1136					&& !muc) {
1137				if (query == null) {
1138					this.mMessageArchiveService.query(conversation);
1139				} else {
1140					if (query.getConversation() == null) {
1141						this.mMessageArchiveService.query(conversation, query.getStart());
1142					}
1143				}
1144			}
1145			checkDeletedFiles(conversation);
1146			this.conversations.add(conversation);
1147			updateConversationUi();
1148			return conversation;
1149		}
1150	}
1151
1152	public void archiveConversation(Conversation conversation) {
1153		getNotificationService().clear(conversation);
1154		conversation.setStatus(Conversation.STATUS_ARCHIVED);
1155		conversation.setNextEncryption(-1);
1156		synchronized (this.conversations) {
1157			if (conversation.getMode() == Conversation.MODE_MULTI) {
1158				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1159					Bookmark bookmark = conversation.getBookmark();
1160					if (bookmark != null && bookmark.autojoin()) {
1161						bookmark.setAutojoin(false);
1162						pushBookmarks(bookmark.getAccount());
1163					}
1164				}
1165				leaveMuc(conversation);
1166			} else {
1167				conversation.endOtrIfNeeded();
1168			}
1169			this.databaseBackend.updateConversation(conversation);
1170			this.conversations.remove(conversation);
1171			updateConversationUi();
1172		}
1173	}
1174
1175	public void createAccount(final Account account) {
1176		account.initAccountServices(this);
1177		databaseBackend.createAccount(account);
1178		this.accounts.add(account);
1179		this.reconnectAccountInBackground(account);
1180		updateAccountUi();
1181	}
1182
1183	public void updateAccount(final Account account) {
1184		this.statusListener.onStatusChanged(account);
1185		databaseBackend.updateAccount(account);
1186		reconnectAccount(account, false);
1187		updateAccountUi();
1188		getNotificationService().updateErrorNotification();
1189	}
1190
1191	public void updateAccountPasswordOnServer(final Account account, final String newPassword, final OnAccountPasswordChanged callback) {
1192		final IqPacket iq = getIqGenerator().generateSetPassword(account, newPassword);
1193		sendIqPacket(account, iq, new OnIqPacketReceived() {
1194			@Override
1195			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1196				if (packet.getType() == IqPacket.TYPE.RESULT) {
1197					account.setPassword(newPassword);
1198					databaseBackend.updateAccount(account);
1199					callback.onPasswordChangeSucceeded();
1200				} else {
1201					callback.onPasswordChangeFailed();
1202				}
1203			}
1204		});
1205	}
1206
1207	public void deleteAccount(final Account account) {
1208		synchronized (this.conversations) {
1209			for (final Conversation conversation : conversations) {
1210				if (conversation.getAccount() == account) {
1211					if (conversation.getMode() == Conversation.MODE_MULTI) {
1212						leaveMuc(conversation);
1213					} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
1214						conversation.endOtrIfNeeded();
1215					}
1216					conversations.remove(conversation);
1217				}
1218			}
1219			if (account.getXmppConnection() != null) {
1220				this.disconnect(account, true);
1221			}
1222			databaseBackend.deleteAccount(account);
1223			this.accounts.remove(account);
1224			updateAccountUi();
1225			getNotificationService().updateErrorNotification();
1226		}
1227	}
1228
1229	public void setOnConversationListChangedListener(OnConversationUpdate listener) {
1230		synchronized (this) {
1231			if (checkListeners()) {
1232				switchToForeground();
1233			}
1234			this.mOnConversationUpdate = listener;
1235			this.mNotificationService.setIsInForeground(true);
1236			if (this.convChangedListenerCount < 2) {
1237				this.convChangedListenerCount++;
1238			}
1239		}
1240	}
1241
1242	public void removeOnConversationListChangedListener() {
1243		synchronized (this) {
1244			this.convChangedListenerCount--;
1245			if (this.convChangedListenerCount <= 0) {
1246				this.convChangedListenerCount = 0;
1247				this.mOnConversationUpdate = null;
1248				this.mNotificationService.setIsInForeground(false);
1249				if (checkListeners()) {
1250					switchToBackground();
1251				}
1252			}
1253		}
1254	}
1255
1256	public void setOnShowErrorToastListener(OnShowErrorToast onShowErrorToast) {
1257		synchronized (this) {
1258			if (checkListeners()) {
1259				switchToForeground();
1260			}
1261			this.mOnShowErrorToast = onShowErrorToast;
1262			if (this.showErrorToastListenerCount < 2) {
1263				this.showErrorToastListenerCount++;
1264			}
1265		}
1266		this.mOnShowErrorToast = onShowErrorToast;
1267	}
1268
1269	public void removeOnShowErrorToastListener() {
1270		synchronized (this) {
1271			this.showErrorToastListenerCount--;
1272			if (this.showErrorToastListenerCount <= 0) {
1273				this.showErrorToastListenerCount = 0;
1274				this.mOnShowErrorToast = null;
1275				if (checkListeners()) {
1276					switchToBackground();
1277				}
1278			}
1279		}
1280	}
1281
1282	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
1283		synchronized (this) {
1284			if (checkListeners()) {
1285				switchToForeground();
1286			}
1287			this.mOnAccountUpdate = listener;
1288			if (this.accountChangedListenerCount < 2) {
1289				this.accountChangedListenerCount++;
1290			}
1291		}
1292	}
1293
1294	public void removeOnAccountListChangedListener() {
1295		synchronized (this) {
1296			this.accountChangedListenerCount--;
1297			if (this.accountChangedListenerCount <= 0) {
1298				this.mOnAccountUpdate = null;
1299				this.accountChangedListenerCount = 0;
1300				if (checkListeners()) {
1301					switchToBackground();
1302				}
1303			}
1304		}
1305	}
1306
1307	public void setOnRosterUpdateListener(final OnRosterUpdate listener) {
1308		synchronized (this) {
1309			if (checkListeners()) {
1310				switchToForeground();
1311			}
1312			this.mOnRosterUpdate = listener;
1313			if (this.rosterChangedListenerCount < 2) {
1314				this.rosterChangedListenerCount++;
1315			}
1316		}
1317	}
1318
1319	public void removeOnRosterUpdateListener() {
1320		synchronized (this) {
1321			this.rosterChangedListenerCount--;
1322			if (this.rosterChangedListenerCount <= 0) {
1323				this.rosterChangedListenerCount = 0;
1324				this.mOnRosterUpdate = null;
1325				if (checkListeners()) {
1326					switchToBackground();
1327				}
1328			}
1329		}
1330	}
1331
1332	public void setOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
1333		synchronized (this) {
1334			if (checkListeners()) {
1335				switchToForeground();
1336			}
1337			this.mOnUpdateBlocklist = listener;
1338			if (this.updateBlocklistListenerCount < 2) {
1339				this.updateBlocklistListenerCount++;
1340			}
1341		}
1342	}
1343
1344	public void removeOnUpdateBlocklistListener() {
1345		synchronized (this) {
1346			this.updateBlocklistListenerCount--;
1347			if (this.updateBlocklistListenerCount <= 0) {
1348				this.updateBlocklistListenerCount = 0;
1349				this.mOnUpdateBlocklist = null;
1350				if (checkListeners()) {
1351					switchToBackground();
1352				}
1353			}
1354		}
1355	}
1356
1357	public void setOnMucRosterUpdateListener(OnMucRosterUpdate listener) {
1358		synchronized (this) {
1359			if (checkListeners()) {
1360				switchToForeground();
1361			}
1362			this.mOnMucRosterUpdate = listener;
1363			if (this.mucRosterChangedListenerCount < 2) {
1364				this.mucRosterChangedListenerCount++;
1365			}
1366		}
1367	}
1368
1369	public void removeOnMucRosterUpdateListener() {
1370		synchronized (this) {
1371			this.mucRosterChangedListenerCount--;
1372			if (this.mucRosterChangedListenerCount <= 0) {
1373				this.mucRosterChangedListenerCount = 0;
1374				this.mOnMucRosterUpdate = null;
1375				if (checkListeners()) {
1376					switchToBackground();
1377				}
1378			}
1379		}
1380	}
1381
1382	private boolean checkListeners() {
1383		return (this.mOnAccountUpdate == null
1384				&& this.mOnConversationUpdate == null
1385				&& this.mOnRosterUpdate == null
1386				&& this.mOnUpdateBlocklist == null
1387				&& this.mOnShowErrorToast == null);
1388	}
1389
1390	private void switchToForeground() {
1391		for (Account account : getAccounts()) {
1392			if (account.getStatus() == Account.State.ONLINE) {
1393				XmppConnection connection = account.getXmppConnection();
1394				if (connection != null && connection.getFeatures().csi()) {
1395					connection.sendActive();
1396				}
1397			}
1398		}
1399		Log.d(Config.LOGTAG, "app switched into foreground");
1400	}
1401
1402	private void switchToBackground() {
1403		for (Account account : getAccounts()) {
1404			if (account.getStatus() == Account.State.ONLINE) {
1405				XmppConnection connection = account.getXmppConnection();
1406				if (connection != null && connection.getFeatures().csi()) {
1407					connection.sendInactive();
1408				}
1409			}
1410		}
1411		for(Conversation conversation : getConversations()) {
1412			conversation.setIncomingChatState(ChatState.ACTIVE);
1413		}
1414		this.mNotificationService.setIsInForeground(false);
1415		Log.d(Config.LOGTAG, "app switched into background");
1416	}
1417
1418	private void connectMultiModeConversations(Account account) {
1419		List<Conversation> conversations = getConversations();
1420		for (Conversation conversation : conversations) {
1421			if ((conversation.getMode() == Conversation.MODE_MULTI)
1422					&& (conversation.getAccount() == account)) {
1423				conversation.resetMucOptions();
1424				joinMuc(conversation);
1425			}
1426		}
1427	}
1428
1429	public void joinMuc(Conversation conversation) {
1430		Account account = conversation.getAccount();
1431		account.pendingConferenceJoins.remove(conversation);
1432		account.pendingConferenceLeaves.remove(conversation);
1433		if (account.getStatus() == Account.State.ONLINE) {
1434			final String nick = conversation.getMucOptions().getProposedNick();
1435			final Jid joinJid = conversation.getMucOptions().createJoinJid(nick);
1436			if (joinJid == null) {
1437				return; //safety net
1438			}
1439			Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": joining conversation " + joinJid.toString());
1440			PresencePacket packet = new PresencePacket();
1441			packet.setFrom(conversation.getAccount().getJid());
1442			packet.setTo(joinJid);
1443			Element x = packet.addChild("x", "http://jabber.org/protocol/muc");
1444			if (conversation.getMucOptions().getPassword() != null) {
1445				x.addChild("password").setContent(conversation.getMucOptions().getPassword());
1446			}
1447			x.addChild("history").setAttribute("since", PresenceGenerator.getTimestamp(conversation.getLastMessageTransmitted()));
1448			String sig = account.getPgpSignature();
1449			if (sig != null) {
1450				packet.addChild("status").setContent("online");
1451				packet.addChild("x", "jabber:x:signed").setContent(sig);
1452			}
1453			sendPresencePacket(account, packet);
1454			fetchConferenceConfiguration(conversation);
1455			if (!joinJid.equals(conversation.getJid())) {
1456				conversation.setContactJid(joinJid);
1457				databaseBackend.updateConversation(conversation);
1458			}
1459			conversation.setHasMessagesLeftOnServer(false);
1460		} else {
1461			account.pendingConferenceJoins.add(conversation);
1462		}
1463	}
1464
1465	public void providePasswordForMuc(Conversation conversation, String password) {
1466		if (conversation.getMode() == Conversation.MODE_MULTI) {
1467			conversation.getMucOptions().setPassword(password);
1468			if (conversation.getBookmark() != null) {
1469				conversation.getBookmark().setAutojoin(true);
1470				pushBookmarks(conversation.getAccount());
1471			}
1472			databaseBackend.updateConversation(conversation);
1473			joinMuc(conversation);
1474		}
1475	}
1476
1477	public void renameInMuc(final Conversation conversation, final String nick, final UiCallback<Conversation> callback) {
1478		final MucOptions options = conversation.getMucOptions();
1479		final Jid joinJid = options.createJoinJid(nick);
1480		if (options.online()) {
1481			Account account = conversation.getAccount();
1482			options.setOnRenameListener(new OnRenameListener() {
1483
1484				@Override
1485				public void onSuccess() {
1486					conversation.setContactJid(joinJid);
1487					databaseBackend.updateConversation(conversation);
1488					Bookmark bookmark = conversation.getBookmark();
1489					if (bookmark != null) {
1490						bookmark.setNick(nick);
1491						pushBookmarks(bookmark.getAccount());
1492					}
1493					callback.success(conversation);
1494				}
1495
1496				@Override
1497				public void onFailure() {
1498					callback.error(R.string.nick_in_use, conversation);
1499				}
1500			});
1501
1502			PresencePacket packet = new PresencePacket();
1503			packet.setTo(joinJid);
1504			packet.setFrom(conversation.getAccount().getJid());
1505
1506			String sig = account.getPgpSignature();
1507			if (sig != null) {
1508				packet.addChild("status").setContent("online");
1509				packet.addChild("x", "jabber:x:signed").setContent(sig);
1510			}
1511			sendPresencePacket(account, packet);
1512		} else {
1513			conversation.setContactJid(joinJid);
1514			databaseBackend.updateConversation(conversation);
1515			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1516				Bookmark bookmark = conversation.getBookmark();
1517				if (bookmark != null) {
1518					bookmark.setNick(nick);
1519					pushBookmarks(bookmark.getAccount());
1520				}
1521				joinMuc(conversation);
1522			}
1523		}
1524	}
1525
1526	public void leaveMuc(Conversation conversation) {
1527		Account account = conversation.getAccount();
1528		account.pendingConferenceJoins.remove(conversation);
1529		account.pendingConferenceLeaves.remove(conversation);
1530		if (account.getStatus() == Account.State.ONLINE) {
1531			PresencePacket packet = new PresencePacket();
1532			packet.setTo(conversation.getJid());
1533			packet.setFrom(conversation.getAccount().getJid());
1534			packet.setAttribute("type", "unavailable");
1535			sendPresencePacket(conversation.getAccount(), packet);
1536			conversation.getMucOptions().setOffline();
1537			conversation.deregisterWithBookmark();
1538			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid()
1539					+ ": leaving muc " + conversation.getJid());
1540		} else {
1541			account.pendingConferenceLeaves.add(conversation);
1542		}
1543	}
1544
1545	private String findConferenceServer(final Account account) {
1546		String server;
1547		if (account.getXmppConnection() != null) {
1548			server = account.getXmppConnection().getMucServer();
1549			if (server != null) {
1550				return server;
1551			}
1552		}
1553		for (Account other : getAccounts()) {
1554			if (other != account && other.getXmppConnection() != null) {
1555				server = other.getXmppConnection().getMucServer();
1556				if (server != null) {
1557					return server;
1558				}
1559			}
1560		}
1561		return null;
1562	}
1563
1564	public void createAdhocConference(final Account account, final Iterable<Jid> jids, final UiCallback<Conversation> callback) {
1565		Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": creating adhoc conference with " + jids.toString());
1566		if (account.getStatus() == Account.State.ONLINE) {
1567			try {
1568				String server = findConferenceServer(account);
1569				if (server == null) {
1570					if (callback != null) {
1571						callback.error(R.string.no_conference_server_found, null);
1572					}
1573					return;
1574				}
1575				String name = new BigInteger(75, getRNG()).toString(32);
1576				Jid jid = Jid.fromParts(name, server, null);
1577				final Conversation conversation = findOrCreateConversation(account, jid, true);
1578				joinMuc(conversation);
1579				Bundle options = new Bundle();
1580				options.putString("muc#roomconfig_persistentroom", "1");
1581				options.putString("muc#roomconfig_membersonly", "1");
1582				options.putString("muc#roomconfig_publicroom", "0");
1583				options.putString("muc#roomconfig_whois", "anyone");
1584				pushConferenceConfiguration(conversation, options, new OnConferenceOptionsPushed() {
1585					@Override
1586					public void onPushSucceeded() {
1587						for (Jid invite : jids) {
1588							invite(conversation, invite);
1589						}
1590						if (account.countPresences() > 1) {
1591							directInvite(conversation, account.getJid().toBareJid());
1592						}
1593						if (callback != null) {
1594							callback.success(conversation);
1595						}
1596					}
1597
1598					@Override
1599					public void onPushFailed() {
1600						if (callback != null) {
1601							callback.error(R.string.conference_creation_failed, conversation);
1602						}
1603					}
1604				});
1605
1606			} catch (InvalidJidException e) {
1607				if (callback != null) {
1608					callback.error(R.string.conference_creation_failed, null);
1609				}
1610			}
1611		} else {
1612			if (callback != null) {
1613				callback.error(R.string.not_connected_try_again, null);
1614			}
1615		}
1616	}
1617
1618	public void fetchConferenceConfiguration(final Conversation conversation) {
1619		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
1620		request.setTo(conversation.getJid().toBareJid());
1621		request.query("http://jabber.org/protocol/disco#info");
1622		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
1623			@Override
1624			public void onIqPacketReceived(Account account, IqPacket packet) {
1625				if (packet.getType() != IqPacket.TYPE.ERROR) {
1626					ArrayList<String> features = new ArrayList<>();
1627					for (Element child : packet.query().getChildren()) {
1628						if (child != null && child.getName().equals("feature")) {
1629							String var = child.getAttribute("var");
1630							if (var != null) {
1631								features.add(var);
1632							}
1633						}
1634					}
1635					conversation.getMucOptions().updateFeatures(features);
1636					updateConversationUi();
1637				}
1638			}
1639		});
1640	}
1641
1642	public void pushConferenceConfiguration(final Conversation conversation, final Bundle options, final OnConferenceOptionsPushed callback) {
1643		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
1644		request.setTo(conversation.getJid().toBareJid());
1645		request.query("http://jabber.org/protocol/muc#owner");
1646		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
1647			@Override
1648			public void onIqPacketReceived(Account account, IqPacket packet) {
1649				if (packet.getType() != IqPacket.TYPE.ERROR) {
1650					Data data = Data.parse(packet.query().findChild("x", "jabber:x:data"));
1651					for (Field field : data.getFields()) {
1652						if (options.containsKey(field.getName())) {
1653							field.setValue(options.getString(field.getName()));
1654						}
1655					}
1656					data.submit();
1657					IqPacket set = new IqPacket(IqPacket.TYPE.SET);
1658					set.setTo(conversation.getJid().toBareJid());
1659					set.query("http://jabber.org/protocol/muc#owner").addChild(data);
1660					sendIqPacket(account, set, new OnIqPacketReceived() {
1661						@Override
1662						public void onIqPacketReceived(Account account, IqPacket packet) {
1663							if (packet.getType() == IqPacket.TYPE.RESULT) {
1664								if (callback != null) {
1665									callback.onPushSucceeded();
1666								}
1667							} else {
1668								if (callback != null) {
1669									callback.onPushFailed();
1670								}
1671							}
1672						}
1673					});
1674				} else {
1675					if (callback != null) {
1676						callback.onPushFailed();
1677					}
1678				}
1679			}
1680		});
1681	}
1682
1683	public void pushSubjectToConference(final Conversation conference, final String subject) {
1684		MessagePacket packet = this.getMessageGenerator().conferenceSubject(conference, subject);
1685		this.sendMessagePacket(conference.getAccount(), packet);
1686		final MucOptions mucOptions = conference.getMucOptions();
1687		final MucOptions.User self = mucOptions.getSelf();
1688		if (!mucOptions.persistent() && self.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
1689			Bundle options = new Bundle();
1690			options.putString("muc#roomconfig_persistentroom", "1");
1691			this.pushConferenceConfiguration(conference, options, null);
1692		}
1693	}
1694
1695	public void changeAffiliationInConference(final Conversation conference, Jid user, MucOptions.Affiliation affiliation, final OnAffiliationChanged callback) {
1696		final Jid jid = user.toBareJid();
1697		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jid, affiliation.toString());
1698		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
1699			@Override
1700			public void onIqPacketReceived(Account account, IqPacket packet) {
1701				if (packet.getType() == IqPacket.TYPE.RESULT) {
1702					callback.onAffiliationChangedSuccessful(jid);
1703				} else {
1704					callback.onAffiliationChangeFailed(jid, R.string.could_not_change_affiliation);
1705				}
1706			}
1707		});
1708	}
1709
1710	public void changeAffiliationsInConference(final Conversation conference, MucOptions.Affiliation before, MucOptions.Affiliation after) {
1711		List<Jid> jids = new ArrayList<>();
1712		for (MucOptions.User user : conference.getMucOptions().getUsers()) {
1713			if (user.getAffiliation() == before && user.getJid() != null) {
1714				jids.add(user.getJid());
1715			}
1716		}
1717		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
1718		sendIqPacket(conference.getAccount(), request, mDefaultIqHandler);
1719	}
1720
1721	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role, final OnRoleChanged callback) {
1722		IqPacket request = this.mIqGenerator.changeRole(conference, nick, role.toString());
1723		Log.d(Config.LOGTAG, request.toString());
1724		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
1725			@Override
1726			public void onIqPacketReceived(Account account, IqPacket packet) {
1727				Log.d(Config.LOGTAG, packet.toString());
1728				if (packet.getType() == IqPacket.TYPE.RESULT) {
1729					callback.onRoleChangedSuccessful(nick);
1730				} else {
1731					callback.onRoleChangeFailed(nick, R.string.could_not_change_role);
1732				}
1733			}
1734		});
1735	}
1736
1737	public void disconnect(Account account, boolean force) {
1738		if ((account.getStatus() == Account.State.ONLINE)
1739				|| (account.getStatus() == Account.State.DISABLED)) {
1740			if (!force) {
1741				List<Conversation> conversations = getConversations();
1742				for (Conversation conversation : conversations) {
1743					if (conversation.getAccount() == account) {
1744						if (conversation.getMode() == Conversation.MODE_MULTI) {
1745							leaveMuc(conversation);
1746						} else {
1747							if (conversation.endOtrIfNeeded()) {
1748								Log.d(Config.LOGTAG, account.getJid().toBareJid()
1749										+ ": ended otr session with "
1750										+ conversation.getJid());
1751							}
1752						}
1753					}
1754				}
1755				sendOfflinePresence(account);
1756			}
1757			account.getXmppConnection().disconnect(force);
1758		}
1759	}
1760
1761	@Override
1762	public IBinder onBind(Intent intent) {
1763		return mBinder;
1764	}
1765
1766	public void updateMessage(Message message) {
1767		databaseBackend.updateMessage(message);
1768		updateConversationUi();
1769	}
1770
1771	protected void syncDirtyContacts(Account account) {
1772		for (Contact contact : account.getRoster().getContacts()) {
1773			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
1774				pushContactToServer(contact);
1775			}
1776			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
1777				deleteContactOnServer(contact);
1778			}
1779		}
1780	}
1781
1782	public void createContact(Contact contact) {
1783		SharedPreferences sharedPref = getPreferences();
1784		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1785		if (autoGrant) {
1786			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
1787			contact.setOption(Contact.Options.ASKING);
1788		}
1789		pushContactToServer(contact);
1790	}
1791
1792	public void onOtrSessionEstablished(Conversation conversation) {
1793		final Account account = conversation.getAccount();
1794		final Session otrSession = conversation.getOtrSession();
1795		Log.d(Config.LOGTAG,
1796				account.getJid().toBareJid() + " otr session established with "
1797						+ conversation.getJid() + "/"
1798						+ otrSession.getSessionID().getUserID());
1799		conversation.findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR, new Conversation.OnMessageFound() {
1800
1801			@Override
1802			public void onMessageFound(Message message) {
1803				SessionID id = otrSession.getSessionID();
1804				try {
1805					message.setCounterpart(Jid.fromString(id.getAccountID() + "/" + id.getUserID()));
1806				} catch (InvalidJidException e) {
1807					return;
1808				}
1809				if (message.needsUploading()) {
1810					mJingleConnectionManager.createNewConnection(message);
1811				} else {
1812					MessagePacket outPacket = mMessageGenerator.generateOtrChat(message, true);
1813					if (outPacket != null) {
1814						message.setStatus(Message.STATUS_SEND);
1815						databaseBackend.updateMessage(message);
1816						sendMessagePacket(account, outPacket);
1817					}
1818				}
1819				updateConversationUi();
1820			}
1821		});
1822	}
1823
1824	public boolean renewSymmetricKey(Conversation conversation) {
1825		Account account = conversation.getAccount();
1826		byte[] symmetricKey = new byte[32];
1827		this.mRandom.nextBytes(symmetricKey);
1828		Session otrSession = conversation.getOtrSession();
1829		if (otrSession != null) {
1830			MessagePacket packet = new MessagePacket();
1831			packet.setType(MessagePacket.TYPE_CHAT);
1832			packet.setFrom(account.getJid());
1833			packet.addChild("private", "urn:xmpp:carbons:2");
1834			packet.addChild("no-copy", "urn:xmpp:hints");
1835			packet.setAttribute("to", otrSession.getSessionID().getAccountID() + "/"
1836					+ otrSession.getSessionID().getUserID());
1837			try {
1838				packet.setBody(otrSession
1839						.transformSending(CryptoHelper.FILETRANSFER
1840								+ CryptoHelper.bytesToHex(symmetricKey))[0]);
1841				sendMessagePacket(account, packet);
1842				conversation.setSymmetricKey(symmetricKey);
1843				return true;
1844			} catch (OtrException e) {
1845				return false;
1846			}
1847		}
1848		return false;
1849	}
1850
1851	public void pushContactToServer(final Contact contact) {
1852		contact.resetOption(Contact.Options.DIRTY_DELETE);
1853		contact.setOption(Contact.Options.DIRTY_PUSH);
1854		final Account account = contact.getAccount();
1855		if (account.getStatus() == Account.State.ONLINE) {
1856			final boolean ask = contact.getOption(Contact.Options.ASKING);
1857			final boolean sendUpdates = contact
1858					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
1859					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
1860			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
1861			iq.query(Xmlns.ROSTER).addChild(contact.asElement());
1862			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
1863			if (sendUpdates) {
1864				sendPresencePacket(account,
1865						mPresenceGenerator.sendPresenceUpdatesTo(contact));
1866			}
1867			if (ask) {
1868				sendPresencePacket(account,
1869						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
1870			}
1871		}
1872	}
1873
1874	public void publishAvatar(final Account account,
1875							  final Uri image,
1876							  final UiCallback<Avatar> callback) {
1877		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
1878		final int size = Config.AVATAR_SIZE;
1879		final Avatar avatar = getFileBackend()
1880				.getPepAvatar(image, size, format);
1881		if (avatar != null) {
1882			avatar.height = size;
1883			avatar.width = size;
1884			if (format.equals(Bitmap.CompressFormat.WEBP)) {
1885				avatar.type = "image/webp";
1886			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
1887				avatar.type = "image/jpeg";
1888			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
1889				avatar.type = "image/png";
1890			}
1891			if (!getFileBackend().save(avatar)) {
1892				callback.error(R.string.error_saving_avatar, avatar);
1893				return;
1894			}
1895			final IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
1896			this.sendIqPacket(account, packet, new OnIqPacketReceived() {
1897
1898				@Override
1899				public void onIqPacketReceived(Account account, IqPacket result) {
1900					if (result.getType() == IqPacket.TYPE.RESULT) {
1901						final IqPacket packet = XmppConnectionService.this.mIqGenerator
1902								.publishAvatarMetadata(avatar);
1903						sendIqPacket(account, packet, new OnIqPacketReceived() {
1904
1905							@Override
1906							public void onIqPacketReceived(Account account,
1907														   IqPacket result) {
1908								if (result.getType() == IqPacket.TYPE.RESULT) {
1909									if (account.setAvatar(avatar.getFilename())) {
1910										getAvatarService().clear(account);
1911										databaseBackend.updateAccount(account);
1912									}
1913									callback.success(avatar);
1914								} else {
1915									callback.error(
1916											R.string.error_publish_avatar_server_reject,
1917											avatar);
1918								}
1919							}
1920						});
1921					} else {
1922						callback.error(
1923								R.string.error_publish_avatar_server_reject,
1924								avatar);
1925					}
1926				}
1927			});
1928		} else {
1929			callback.error(R.string.error_publish_avatar_converting, null);
1930		}
1931	}
1932
1933	public void fetchAvatar(Account account, Avatar avatar) {
1934		fetchAvatar(account, avatar, null);
1935	}
1936
1937	private static String generateFetchKey(Account account, final Avatar avatar) {
1938		return account.getJid().toBareJid()+"_"+avatar.owner+"_"+avatar.sha1sum;
1939	}
1940
1941	public void fetchAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
1942		final String KEY = generateFetchKey(account, avatar);
1943		synchronized(this.mInProgressAvatarFetches) {
1944			if (this.mInProgressAvatarFetches.contains(KEY)) {
1945				return;
1946			} else {
1947				switch (avatar.origin) {
1948					case PEP:
1949						this.mInProgressAvatarFetches.add(KEY);
1950						fetchAvatarPep(account, avatar, callback);
1951						break;
1952					case VCARD:
1953						this.mInProgressAvatarFetches.add(KEY);
1954						fetchAvatarVcard(account, avatar, callback);
1955						break;
1956				}
1957			}
1958		}
1959	}
1960
1961	private void fetchAvatarPep(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
1962		IqPacket packet = this.mIqGenerator.retrievePepAvatar(avatar);
1963		sendIqPacket(account, packet, new OnIqPacketReceived() {
1964
1965			@Override
1966			public void onIqPacketReceived(Account account, IqPacket result) {
1967				synchronized (mInProgressAvatarFetches) {
1968					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
1969				}
1970				final String ERROR = account.getJid().toBareJid()
1971						+ ": fetching avatar for " + avatar.owner + " failed ";
1972				if (result.getType() == IqPacket.TYPE.RESULT) {
1973					avatar.image = mIqParser.avatarData(result);
1974					if (avatar.image != null) {
1975						if (getFileBackend().save(avatar)) {
1976							if (account.getJid().toBareJid().equals(avatar.owner)) {
1977								if (account.setAvatar(avatar.getFilename())) {
1978									databaseBackend.updateAccount(account);
1979								}
1980								getAvatarService().clear(account);
1981								updateConversationUi();
1982								updateAccountUi();
1983							} else {
1984								Contact contact = account.getRoster()
1985										.getContact(avatar.owner);
1986								contact.setAvatar(avatar);
1987								getAvatarService().clear(contact);
1988								updateConversationUi();
1989								updateRosterUi();
1990							}
1991							if (callback != null) {
1992								callback.success(avatar);
1993							}
1994							Log.d(Config.LOGTAG, account.getJid().toBareJid()
1995									+ ": succesfuly fetched pep avatar for " + avatar.owner);
1996							return;
1997						}
1998					} else {
1999
2000						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
2001					}
2002				} else {
2003					Element error = result.findChild("error");
2004					if (error == null) {
2005						Log.d(Config.LOGTAG, ERROR + "(server error)");
2006					} else {
2007						Log.d(Config.LOGTAG, ERROR + error.toString());
2008					}
2009				}
2010				if (callback != null) {
2011					callback.error(0, null);
2012				}
2013
2014			}
2015		});
2016	}
2017
2018	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2019		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
2020		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2021			@Override
2022			public void onIqPacketReceived(Account account, IqPacket packet) {
2023				synchronized (mInProgressAvatarFetches) {
2024					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2025				}
2026				if (packet.getType() == IqPacket.TYPE.RESULT) {
2027					Element vCard = packet.findChild("vCard", "vcard-temp");
2028					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
2029					String image = photo != null ? photo.findChildContent("BINVAL") : null;
2030					if (image != null) {
2031						avatar.image = image;
2032						if (getFileBackend().save(avatar)) {
2033							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2034									+ ": successfully fetched vCard avatar for " + avatar.owner);
2035							Contact contact = account.getRoster()
2036									.getContact(avatar.owner);
2037							contact.setAvatar(avatar);
2038							getAvatarService().clear(contact);
2039							updateConversationUi();
2040							updateRosterUi();
2041						}
2042					}
2043				}
2044			}
2045		});
2046	}
2047
2048	public void checkForAvatar(Account account, final UiCallback<Avatar> callback) {
2049		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2050		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2051
2052			@Override
2053			public void onIqPacketReceived(Account account, IqPacket packet) {
2054				if (packet.getType() == IqPacket.TYPE.RESULT) {
2055					Element pubsub = packet.findChild("pubsub",
2056							"http://jabber.org/protocol/pubsub");
2057					if (pubsub != null) {
2058						Element items = pubsub.findChild("items");
2059						if (items != null) {
2060							Avatar avatar = Avatar.parseMetadata(items);
2061							if (avatar != null) {
2062								avatar.owner = account.getJid().toBareJid();
2063								if (fileBackend.isAvatarCached(avatar)) {
2064									if (account.setAvatar(avatar.getFilename())) {
2065										databaseBackend.updateAccount(account);
2066									}
2067									getAvatarService().clear(account);
2068									callback.success(avatar);
2069								} else {
2070									fetchAvatarPep(account, avatar, callback);
2071								}
2072								return;
2073							}
2074						}
2075					}
2076				}
2077				callback.error(0, null);
2078			}
2079		});
2080	}
2081
2082	public void deleteContactOnServer(Contact contact) {
2083		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
2084		contact.resetOption(Contact.Options.DIRTY_PUSH);
2085		contact.setOption(Contact.Options.DIRTY_DELETE);
2086		Account account = contact.getAccount();
2087		if (account.getStatus() == Account.State.ONLINE) {
2088			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2089			Element item = iq.query(Xmlns.ROSTER).addChild("item");
2090			item.setAttribute("jid", contact.getJid().toString());
2091			item.setAttribute("subscription", "remove");
2092			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2093		}
2094	}
2095
2096	public void updateConversation(Conversation conversation) {
2097		this.databaseBackend.updateConversation(conversation);
2098	}
2099
2100	public void reconnectAccount(final Account account, final boolean force) {
2101		synchronized (account) {
2102			if (account.getXmppConnection() != null) {
2103				disconnect(account, force);
2104			}
2105			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2106
2107				synchronized (this.mInProgressAvatarFetches) {
2108					for(Iterator<String> iterator = this.mInProgressAvatarFetches.iterator(); iterator.hasNext();) {
2109						final String KEY = iterator.next();
2110						if (KEY.startsWith(account.getJid().toBareJid()+"_")) {
2111							iterator.remove();
2112						}
2113					}
2114				}
2115
2116				if (account.getXmppConnection() == null) {
2117					account.setXmppConnection(createConnection(account));
2118				}
2119				Thread thread = new Thread(account.getXmppConnection());
2120				thread.start();
2121				scheduleWakeUpCall(Config.CONNECT_TIMEOUT, account.getUuid().hashCode());
2122			} else {
2123				account.getRoster().clearPresences();
2124				account.setXmppConnection(null);
2125			}
2126		}
2127	}
2128
2129	public void reconnectAccountInBackground(final Account account) {
2130		new Thread(new Runnable() {
2131			@Override
2132			public void run() {
2133				reconnectAccount(account,false);
2134			}
2135		}).start();
2136	}
2137
2138	public void invite(Conversation conversation, Jid contact) {
2139		Log.d(Config.LOGTAG,conversation.getAccount().getJid().toBareJid()+": inviting "+contact+" to "+conversation.getJid().toBareJid());
2140		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
2141		sendMessagePacket(conversation.getAccount(), packet);
2142	}
2143
2144	public void directInvite(Conversation conversation, Jid jid) {
2145		MessagePacket packet = mMessageGenerator.directInvite(conversation, jid);
2146		sendMessagePacket(conversation.getAccount(),packet);
2147	}
2148
2149	public void resetSendingToWaiting(Account account) {
2150		for (Conversation conversation : getConversations()) {
2151			if (conversation.getAccount() == account) {
2152				conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
2153
2154					@Override
2155					public void onMessageFound(Message message) {
2156						markMessage(message, Message.STATUS_WAITING);
2157					}
2158				});
2159			}
2160		}
2161	}
2162
2163	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status) {
2164		if (uuid == null) {
2165			return null;
2166		}
2167		for (Conversation conversation : getConversations()) {
2168			if (conversation.getJid().toBareJid().equals(recipient) && conversation.getAccount() == account) {
2169				final Message message = conversation.findSentMessageWithUuid(uuid);
2170				if (message != null) {
2171					markMessage(message, status);
2172				}
2173				return message;
2174			}
2175		}
2176		return null;
2177	}
2178
2179	public boolean markMessage(Conversation conversation, String uuid,
2180							   int status) {
2181		if (uuid == null) {
2182			return false;
2183		} else {
2184			Message message = conversation.findSentMessageWithUuid(uuid);
2185			if (message != null) {
2186				markMessage(message, status);
2187				return true;
2188			} else {
2189				return false;
2190			}
2191		}
2192	}
2193
2194	public void markMessage(Message message, int status) {
2195		if (status == Message.STATUS_SEND_FAILED
2196				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
2197				.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
2198			return;
2199		}
2200		message.setStatus(status);
2201		databaseBackend.updateMessage(message);
2202		updateConversationUi();
2203	}
2204
2205	public SharedPreferences getPreferences() {
2206		return PreferenceManager
2207				.getDefaultSharedPreferences(getApplicationContext());
2208	}
2209
2210	public boolean forceEncryption() {
2211		return getPreferences().getBoolean("force_encryption", false);
2212	}
2213
2214	public boolean confirmMessages() {
2215		return getPreferences().getBoolean("confirm_messages", true);
2216	}
2217
2218	public boolean sendChatStates() {
2219		return getPreferences().getBoolean("chat_states", false);
2220	}
2221
2222	public boolean saveEncryptedMessages() {
2223		return !getPreferences().getBoolean("dont_save_encrypted", false);
2224	}
2225
2226	public boolean indicateReceived() {
2227		return getPreferences().getBoolean("indicate_received", false);
2228	}
2229
2230	public int unreadCount() {
2231		int count = 0;
2232		for(Conversation conversation : getConversations()) {
2233			count += conversation.unreadCount();
2234		}
2235		return count;
2236	}
2237
2238
2239	public void showErrorToastInUi(int resId) {
2240		if (mOnShowErrorToast != null) {
2241			mOnShowErrorToast.onShowErrorToast(resId);
2242		}
2243	}
2244
2245	public void updateConversationUi() {
2246		if (mOnConversationUpdate != null) {
2247			mOnConversationUpdate.onConversationUpdate();
2248		}
2249	}
2250
2251	public void updateAccountUi() {
2252		if (mOnAccountUpdate != null) {
2253			mOnAccountUpdate.onAccountUpdate();
2254		}
2255	}
2256
2257	public void updateRosterUi() {
2258		if (mOnRosterUpdate != null) {
2259			mOnRosterUpdate.onRosterUpdate();
2260		}
2261	}
2262
2263	public void updateBlocklistUi(final OnUpdateBlocklist.Status status) {
2264		if (mOnUpdateBlocklist != null) {
2265			mOnUpdateBlocklist.OnUpdateBlocklist(status);
2266		}
2267	}
2268
2269	public void updateMucRosterUi() {
2270		if (mOnMucRosterUpdate != null) {
2271			mOnMucRosterUpdate.onMucRosterUpdate();
2272		}
2273	}
2274
2275	public Account findAccountByJid(final Jid accountJid) {
2276		for (Account account : this.accounts) {
2277			if (account.getJid().toBareJid().equals(accountJid.toBareJid())) {
2278				return account;
2279			}
2280		}
2281		return null;
2282	}
2283
2284	public Conversation findConversationByUuid(String uuid) {
2285		for (Conversation conversation : getConversations()) {
2286			if (conversation.getUuid().equals(uuid)) {
2287				return conversation;
2288			}
2289		}
2290		return null;
2291	}
2292
2293	public void markRead(final Conversation conversation) {
2294		mNotificationService.clear(conversation);
2295		conversation.markRead();
2296		updateUnreadCountBadge();
2297	}
2298
2299	public synchronized void updateUnreadCountBadge() {
2300		int count = unreadCount();
2301		if (unreadCount != count) {
2302			Log.d(Config.LOGTAG, "update unread count to " + count);
2303			if (count > 0) {
2304				ShortcutBadger.with(getApplicationContext()).count(count);
2305			} else {
2306				ShortcutBadger.with(getApplicationContext()).remove();
2307			}
2308			unreadCount = count;
2309		}
2310	}
2311
2312	public void sendReadMarker(final Conversation conversation) {
2313		final Message markable = conversation.getLatestMarkableMessage();
2314		this.markRead(conversation);
2315		if (confirmMessages() && markable != null && markable.getRemoteMsgId() != null) {
2316			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": sending read marker to " + markable.getCounterpart().toString());
2317			Account account = conversation.getAccount();
2318			final Jid to = markable.getCounterpart();
2319			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId());
2320			this.sendMessagePacket(conversation.getAccount(), packet);
2321		}
2322		updateConversationUi();
2323	}
2324
2325	public SecureRandom getRNG() {
2326		return this.mRandom;
2327	}
2328
2329	public MemorizingTrustManager getMemorizingTrustManager() {
2330		return this.mMemorizingTrustManager;
2331	}
2332
2333	public void setMemorizingTrustManager(MemorizingTrustManager trustManager) {
2334		this.mMemorizingTrustManager = trustManager;
2335	}
2336
2337	public void updateMemorizingTrustmanager() {
2338		final MemorizingTrustManager tm;
2339		final boolean dontTrustSystemCAs = getPreferences().getBoolean("dont_trust_system_cas", false);
2340		if (dontTrustSystemCAs) {
2341			 tm = new MemorizingTrustManager(getApplicationContext(), null);
2342		} else {
2343			tm = new MemorizingTrustManager(getApplicationContext());
2344		}
2345		setMemorizingTrustManager(tm);
2346	}
2347
2348	public PowerManager getPowerManager() {
2349		return this.pm;
2350	}
2351
2352	public LruCache<String, Bitmap> getBitmapCache() {
2353		return this.mBitmapCache;
2354	}
2355
2356	public void syncRosterToDisk(final Account account) {
2357		Runnable runnable = new Runnable() {
2358
2359			@Override
2360			public void run() {
2361				databaseBackend.writeRoster(account.getRoster());
2362			}
2363		};
2364		mDatabaseExecutor.execute(runnable);
2365
2366	}
2367
2368	public List<String> getKnownHosts() {
2369		final List<String> hosts = new ArrayList<>();
2370		for (final Account account : getAccounts()) {
2371			if (!hosts.contains(account.getServer().toString())) {
2372				hosts.add(account.getServer().toString());
2373			}
2374			for (final Contact contact : account.getRoster().getContacts()) {
2375				if (contact.showInRoster()) {
2376					final String server = contact.getServer().toString();
2377					if (server != null && !hosts.contains(server)) {
2378						hosts.add(server);
2379					}
2380				}
2381			}
2382		}
2383		return hosts;
2384	}
2385
2386	public List<String> getKnownConferenceHosts() {
2387		final ArrayList<String> mucServers = new ArrayList<>();
2388		for (final Account account : accounts) {
2389			if (account.getXmppConnection() != null) {
2390				final String server = account.getXmppConnection().getMucServer();
2391				if (server != null && !mucServers.contains(server)) {
2392					mucServers.add(server);
2393				}
2394			}
2395		}
2396		return mucServers;
2397	}
2398
2399	public void sendMessagePacket(Account account, MessagePacket packet) {
2400		XmppConnection connection = account.getXmppConnection();
2401		if (connection != null) {
2402			connection.sendMessagePacket(packet);
2403		}
2404	}
2405
2406	public void sendPresencePacket(Account account, PresencePacket packet) {
2407		XmppConnection connection = account.getXmppConnection();
2408		if (connection != null) {
2409			connection.sendPresencePacket(packet);
2410		}
2411	}
2412
2413	public void sendIqPacket(final Account account, final IqPacket packet, final OnIqPacketReceived callback) {
2414		final XmppConnection connection = account.getXmppConnection();
2415		if (connection != null) {
2416			connection.sendIqPacket(packet, callback);
2417		}
2418	}
2419
2420	public void sendPresence(final Account account) {
2421		sendPresencePacket(account, mPresenceGenerator.sendPresence(account));
2422	}
2423
2424	public void sendOfflinePresence(final Account account) {
2425		sendPresencePacket(account, mPresenceGenerator.sendOfflinePresence(account));
2426	}
2427
2428	public MessageGenerator getMessageGenerator() {
2429		return this.mMessageGenerator;
2430	}
2431
2432	public PresenceGenerator getPresenceGenerator() {
2433		return this.mPresenceGenerator;
2434	}
2435
2436	public IqGenerator getIqGenerator() {
2437		return this.mIqGenerator;
2438	}
2439
2440	public IqParser getIqParser() {
2441		return this.mIqParser;
2442	}
2443
2444	public JingleConnectionManager getJingleConnectionManager() {
2445		return this.mJingleConnectionManager;
2446	}
2447
2448	public MessageArchiveService getMessageArchiveService() {
2449		return this.mMessageArchiveService;
2450	}
2451
2452	public List<Contact> findContacts(Jid jid) {
2453		ArrayList<Contact> contacts = new ArrayList<>();
2454		for (Account account : getAccounts()) {
2455			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2456				Contact contact = account.getRoster().getContactFromRoster(jid);
2457				if (contact != null) {
2458					contacts.add(contact);
2459				}
2460			}
2461		}
2462		return contacts;
2463	}
2464
2465	public NotificationService getNotificationService() {
2466		return this.mNotificationService;
2467	}
2468
2469	public HttpConnectionManager getHttpConnectionManager() {
2470		return this.mHttpConnectionManager;
2471	}
2472
2473	public void resendFailedMessages(final Message message) {
2474		final Collection<Message> messages = new ArrayList<>();
2475		Message current = message;
2476		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
2477			messages.add(current);
2478			if (current.mergeable(current.next())) {
2479				current = current.next();
2480			} else {
2481				break;
2482			}
2483		}
2484		for (final Message msg : messages) {
2485			markMessage(msg, Message.STATUS_WAITING);
2486			this.resendMessage(msg);
2487		}
2488	}
2489
2490	public void clearConversationHistory(final Conversation conversation) {
2491		conversation.clearMessages();
2492		conversation.setHasMessagesLeftOnServer(false); //avoid messages getting loaded through mam
2493		new Thread(new Runnable() {
2494			@Override
2495			public void run() {
2496				databaseBackend.deleteMessagesInConversation(conversation);
2497			}
2498		}).start();
2499	}
2500
2501	public void sendBlockRequest(final Blockable blockable) {
2502		if (blockable != null && blockable.getBlockedJid() != null) {
2503			final Jid jid = blockable.getBlockedJid();
2504			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetBlockRequest(jid), new OnIqPacketReceived() {
2505
2506				@Override
2507				public void onIqPacketReceived(final Account account, final IqPacket packet) {
2508					if (packet.getType() == IqPacket.TYPE.RESULT) {
2509						account.getBlocklist().add(jid);
2510						updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
2511					}
2512				}
2513			});
2514		}
2515	}
2516
2517	public void sendUnblockRequest(final Blockable blockable) {
2518		if (blockable != null && blockable.getJid() != null) {
2519			final Jid jid = blockable.getBlockedJid();
2520			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetUnblockRequest(jid), new OnIqPacketReceived() {
2521				@Override
2522				public void onIqPacketReceived(final Account account, final IqPacket packet) {
2523					if (packet.getType() == IqPacket.TYPE.RESULT) {
2524						account.getBlocklist().remove(jid);
2525						updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
2526					}
2527				}
2528			});
2529		}
2530	}
2531
2532	public interface OnMoreMessagesLoaded {
2533		public void onMoreMessagesLoaded(int count, Conversation conversation);
2534
2535		public void informUser(int r);
2536	}
2537
2538	public interface OnAccountPasswordChanged {
2539		public void onPasswordChangeSucceeded();
2540
2541		public void onPasswordChangeFailed();
2542	}
2543
2544	public interface OnAffiliationChanged {
2545		public void onAffiliationChangedSuccessful(Jid jid);
2546
2547		public void onAffiliationChangeFailed(Jid jid, int resId);
2548	}
2549
2550	public interface OnRoleChanged {
2551		public void onRoleChangedSuccessful(String nick);
2552
2553		public void onRoleChangeFailed(String nick, int resid);
2554	}
2555
2556	public interface OnConversationUpdate {
2557		public void onConversationUpdate();
2558	}
2559
2560	public interface OnAccountUpdate {
2561		public void onAccountUpdate();
2562	}
2563
2564	public interface OnRosterUpdate {
2565		public void onRosterUpdate();
2566	}
2567
2568	public interface OnMucRosterUpdate {
2569		public void onMucRosterUpdate();
2570	}
2571
2572	public interface OnConferenceOptionsPushed {
2573		public void onPushSucceeded();
2574
2575		public void onPushFailed();
2576	}
2577
2578	public interface OnShowErrorToast {
2579		void onShowErrorToast(int resId);
2580	}
2581
2582	public class XmppConnectionBinder extends Binder {
2583		public XmppConnectionService getService() {
2584			return XmppConnectionService.this;
2585		}
2586	}
2587}