XmppConnectionService.java

   1package eu.siacs.conversations.services;
   2
   3import android.annotation.SuppressLint;
   4import android.app.AlarmManager;
   5import android.app.PendingIntent;
   6import android.app.Service;
   7import android.content.Context;
   8import android.content.Intent;
   9import android.content.SharedPreferences;
  10import android.database.ContentObserver;
  11import android.graphics.Bitmap;
  12import android.net.ConnectivityManager;
  13import android.net.NetworkInfo;
  14import android.net.Uri;
  15import android.os.Binder;
  16import android.os.Bundle;
  17import android.os.FileObserver;
  18import android.os.IBinder;
  19import android.os.Looper;
  20import android.os.PowerManager;
  21import android.os.PowerManager.WakeLock;
  22import android.os.SystemClock;
  23import android.preference.PreferenceManager;
  24import android.provider.ContactsContract;
  25import android.util.Log;
  26import android.util.LruCache;
  27
  28import net.java.otr4j.OtrException;
  29import net.java.otr4j.session.Session;
  30import net.java.otr4j.session.SessionID;
  31import net.java.otr4j.session.SessionStatus;
  32
  33import org.openintents.openpgp.util.OpenPgpApi;
  34import org.openintents.openpgp.util.OpenPgpServiceConnection;
  35
  36import java.math.BigInteger;
  37import java.security.SecureRandom;
  38import java.util.ArrayList;
  39import java.util.Arrays;
  40import java.util.Collection;
  41import java.util.Collections;
  42import java.util.Comparator;
  43import java.util.Hashtable;
  44import java.util.Iterator;
  45import java.util.List;
  46import java.util.Locale;
  47import java.util.Map;
  48import java.util.concurrent.CopyOnWriteArrayList;
  49
  50import de.duenndns.ssl.MemorizingTrustManager;
  51import eu.siacs.conversations.Config;
  52import eu.siacs.conversations.R;
  53import eu.siacs.conversations.crypto.PgpEngine;
  54import eu.siacs.conversations.entities.Account;
  55import eu.siacs.conversations.entities.Blockable;
  56import eu.siacs.conversations.entities.Bookmark;
  57import eu.siacs.conversations.entities.Contact;
  58import eu.siacs.conversations.entities.Conversation;
  59import eu.siacs.conversations.entities.Downloadable;
  60import eu.siacs.conversations.entities.DownloadablePlaceholder;
  61import eu.siacs.conversations.entities.Message;
  62import eu.siacs.conversations.entities.MucOptions;
  63import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  64import eu.siacs.conversations.entities.Presences;
  65import eu.siacs.conversations.generator.IqGenerator;
  66import eu.siacs.conversations.generator.MessageGenerator;
  67import eu.siacs.conversations.generator.PresenceGenerator;
  68import eu.siacs.conversations.http.HttpConnectionManager;
  69import eu.siacs.conversations.parser.IqParser;
  70import eu.siacs.conversations.parser.MessageParser;
  71import eu.siacs.conversations.parser.PresenceParser;
  72import eu.siacs.conversations.persistance.DatabaseBackend;
  73import eu.siacs.conversations.persistance.FileBackend;
  74import eu.siacs.conversations.ui.UiCallback;
  75import eu.siacs.conversations.utils.CryptoHelper;
  76import eu.siacs.conversations.utils.ExceptionHelper;
  77import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
  78import eu.siacs.conversations.utils.PRNGFixes;
  79import eu.siacs.conversations.utils.PhoneHelper;
  80import eu.siacs.conversations.utils.Xmlns;
  81import eu.siacs.conversations.xml.Element;
  82import eu.siacs.conversations.xmpp.OnBindListener;
  83import eu.siacs.conversations.xmpp.OnContactStatusChanged;
  84import eu.siacs.conversations.xmpp.OnIqPacketReceived;
  85import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
  86import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
  87import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
  88import eu.siacs.conversations.xmpp.OnStatusChanged;
  89import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
  90import eu.siacs.conversations.xmpp.XmppConnection;
  91import eu.siacs.conversations.xmpp.chatstate.ChatState;
  92import eu.siacs.conversations.xmpp.forms.Data;
  93import eu.siacs.conversations.xmpp.forms.Field;
  94import eu.siacs.conversations.xmpp.jid.InvalidJidException;
  95import eu.siacs.conversations.xmpp.jid.Jid;
  96import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  97import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
  98import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
  99import eu.siacs.conversations.xmpp.pep.Avatar;
 100import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 101import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 102import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 103import me.leolin.shortcutbadger.ShortcutBadger;
 104
 105public class XmppConnectionService extends Service implements OnPhoneContactsLoadedListener {
 106
 107	public static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 108	public static final String ACTION_DISABLE_FOREGROUND = "disable_foreground";
 109	private static final String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
 110	public static final String ACTION_TRY_AGAIN = "try_again";
 111	public static final String ACTION_DISABLE_ACCOUNT = "disable_account";
 112	private ContentObserver contactObserver = new ContentObserver(null) {
 113		@Override
 114		public void onChange(boolean selfChange) {
 115			super.onChange(selfChange);
 116			Intent intent = new Intent(getApplicationContext(),
 117					XmppConnectionService.class);
 118			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 119			startService(intent);
 120		}
 121	};
 122	private final IBinder mBinder = new XmppConnectionBinder();
 123	private final List<Conversation> conversations = new CopyOnWriteArrayList<>();
 124	private final FileObserver fileObserver = new FileObserver(
 125			FileBackend.getConversationsImageDirectory()) {
 126
 127		@Override
 128		public void onEvent(int event, String path) {
 129			if (event == FileObserver.DELETE) {
 130				markFileDeleted(path.split("\\.")[0]);
 131			}
 132		}
 133	};
 134	private final OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 135
 136		@Override
 137		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 138			mJingleConnectionManager.deliverPacket(account, packet);
 139		}
 140	};
 141	private final OnBindListener mOnBindListener = new OnBindListener() {
 142
 143		@Override
 144		public void onBind(final Account account) {
 145			account.getRoster().clearPresences();
 146			account.pendingConferenceJoins.clear();
 147			account.pendingConferenceLeaves.clear();
 148			fetchRosterFromServer(account);
 149			fetchBookmarks(account);
 150			sendPresence(account);
 151			connectMultiModeConversations(account);
 152			updateConversationUi();
 153		}
 154	};
 155	private final OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 156
 157		@Override
 158		public void onMessageAcknowledged(Account account, String uuid) {
 159			for (final Conversation conversation : getConversations()) {
 160				if (conversation.getAccount() == account) {
 161					Message message = conversation.findUnsentMessageWithUuid(uuid);
 162					if (message != null) {
 163						markMessage(message, Message.STATUS_SEND);
 164						if (conversation.setLastMessageTransmitted(System.currentTimeMillis())) {
 165							databaseBackend.updateConversation(conversation);
 166						}
 167					}
 168				}
 169			}
 170		}
 171	};
 172	private final IqGenerator mIqGenerator = new IqGenerator(this);
 173	public DatabaseBackend databaseBackend;
 174	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 175
 176		@Override
 177		public void onContactStatusChanged(Contact contact, boolean online) {
 178			Conversation conversation = find(getConversations(), contact);
 179			if (conversation != null) {
 180				if (online) {
 181					conversation.endOtrIfNeeded();
 182					if (contact.getPresences().size() == 1) {
 183						sendUnsentMessages(conversation);
 184					}
 185				} else {
 186					if (contact.getPresences().size() >= 1) {
 187						if (conversation.hasValidOtrSession()) {
 188							String otrResource = conversation.getOtrSession().getSessionID().getUserID();
 189							if (!(Arrays.asList(contact.getPresences().asStringArray()).contains(otrResource))) {
 190								conversation.endOtrIfNeeded();
 191							}
 192						}
 193					} else {
 194						conversation.endOtrIfNeeded();
 195					}
 196				}
 197			}
 198		}
 199	};
 200	private FileBackend fileBackend = new FileBackend(this);
 201	private MemorizingTrustManager mMemorizingTrustManager;
 202	private NotificationService mNotificationService = new NotificationService(
 203			this);
 204	private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 205	private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 206	private IqParser mIqParser = new IqParser(this);
 207	private OnIqPacketReceived mDefaultIqHandler = new OnIqPacketReceived() {
 208		@Override
 209		public void onIqPacketReceived(Account account, IqPacket packet) {
 210			if (packet.getType() == IqPacket.TYPE.ERROR) {
 211				Element error = packet.findChild("error");
 212				String text = error != null ? error.findChildContent("text") : null;
 213				if (text != null) {
 214					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": received iq error - "+text);
 215				}
 216			}
 217		}
 218	};
 219	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 220	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 221	private List<Account> accounts;
 222	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 223			this);
 224	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 225			this);
 226	private AvatarService mAvatarService = new AvatarService(this);
 227	private final List<String> mInProgressAvatarFetches = new ArrayList<>();
 228	private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 229	private OnConversationUpdate mOnConversationUpdate = null;
 230	private int convChangedListenerCount = 0;
 231	private int unreadCount = 0;
 232	private OnAccountUpdate mOnAccountUpdate = null;
 233	private OnStatusChanged statusListener = new OnStatusChanged() {
 234
 235		@Override
 236		public void onStatusChanged(Account account) {
 237			XmppConnection connection = account.getXmppConnection();
 238			if (mOnAccountUpdate != null) {
 239				mOnAccountUpdate.onAccountUpdate();
 240			}
 241			if (account.getStatus() == Account.State.ONLINE) {
 242				for (Conversation conversation : account.pendingConferenceLeaves) {
 243					leaveMuc(conversation);
 244				}
 245				for (Conversation conversation : account.pendingConferenceJoins) {
 246					joinMuc(conversation);
 247				}
 248				mMessageArchiveService.executePendingQueries(account);
 249				mJingleConnectionManager.cancelInTransmission();
 250				List<Conversation> conversations = getConversations();
 251				for (Conversation conversation : conversations) {
 252					if (conversation.getAccount() == account) {
 253						conversation.startOtrIfNeeded();
 254						sendUnsentMessages(conversation);
 255					}
 256				}
 257				if (connection != null && connection.getFeatures().csi()) {
 258					if (checkListeners()) {
 259						Log.d(Config.LOGTAG, account.getJid().toBareJid()
 260								+ " sending csi//inactive");
 261						connection.sendInactive();
 262					} else {
 263						Log.d(Config.LOGTAG, account.getJid().toBareJid()
 264								+ " sending csi//active");
 265						connection.sendActive();
 266					}
 267				}
 268				syncDirtyContacts(account);
 269				scheduleWakeUpCall(Config.PING_MAX_INTERVAL,account.getUuid().hashCode());
 270			} else if (account.getStatus() == Account.State.OFFLINE) {
 271				resetSendingToWaiting(account);
 272				if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 273					int timeToReconnect = mRandom.nextInt(50) + 10;
 274					scheduleWakeUpCall(timeToReconnect,account.getUuid().hashCode());
 275				}
 276			} else if (account.getStatus() == Account.State.REGISTRATION_SUCCESSFUL) {
 277				databaseBackend.updateAccount(account);
 278				reconnectAccount(account, true);
 279			} else if ((account.getStatus() != Account.State.CONNECTING)
 280					&& (account.getStatus() != Account.State.NO_INTERNET)) {
 281				if (connection != null) {
 282					int next = connection.getTimeToNextAttempt();
 283					Log.d(Config.LOGTAG, account.getJid().toBareJid()
 284							+ ": error connecting account. try again in "
 285							+ next + "s for the "
 286							+ (connection.getAttempt() + 1) + " time");
 287					scheduleWakeUpCall(next,account.getUuid().hashCode());
 288				}
 289					}
 290			getNotificationService().updateErrorNotification();
 291		}
 292	};
 293	private int accountChangedListenerCount = 0;
 294	private OnRosterUpdate mOnRosterUpdate = null;
 295	private OnUpdateBlocklist mOnUpdateBlocklist = null;
 296	private int updateBlocklistListenerCount = 0;
 297	private int rosterChangedListenerCount = 0;
 298	private OnMucRosterUpdate mOnMucRosterUpdate = null;
 299	private int mucRosterChangedListenerCount = 0;
 300	private SecureRandom mRandom;
 301	private OpenPgpServiceConnection pgpServiceConnection;
 302	private PgpEngine mPgpEngine = null;
 303	private WakeLock wakeLock;
 304	private PowerManager pm;
 305	private LruCache<String, Bitmap> mBitmapCache;
 306	private Thread mPhoneContactMergerThread;
 307
 308	private boolean mRestoredFromDatabase = false;
 309	public boolean areMessagesInitialized() {
 310		return this.mRestoredFromDatabase;
 311	}
 312
 313	public PgpEngine getPgpEngine() {
 314		if (pgpServiceConnection.isBound()) {
 315			if (this.mPgpEngine == null) {
 316				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 317							getApplicationContext(),
 318							pgpServiceConnection.getService()), this);
 319			}
 320			return mPgpEngine;
 321		} else {
 322			return null;
 323		}
 324
 325	}
 326
 327	public FileBackend getFileBackend() {
 328		return this.fileBackend;
 329	}
 330
 331	public AvatarService getAvatarService() {
 332		return this.mAvatarService;
 333	}
 334
 335	public void attachLocationToConversation(final Conversation conversation,
 336											 final Uri uri,
 337											 final UiCallback<Message> callback) {
 338		int encryption = conversation.getNextEncryption(forceEncryption());
 339		if (encryption == Message.ENCRYPTION_PGP) {
 340			encryption = Message.ENCRYPTION_DECRYPTED;
 341		}
 342		Message message = new Message(conversation,uri.toString(),encryption);
 343		if (conversation.getNextCounterpart() != null) {
 344			message.setCounterpart(conversation.getNextCounterpart());
 345		}
 346		if (encryption == Message.ENCRYPTION_DECRYPTED) {
 347			getPgpEngine().encrypt(message, callback);
 348		} else {
 349			callback.success(message);
 350		}
 351	}
 352
 353	public void attachFileToConversation(final Conversation conversation,
 354			final Uri uri,
 355			final UiCallback<Message> callback) {
 356		final Message message;
 357		if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 358			message = new Message(conversation, "",
 359					Message.ENCRYPTION_DECRYPTED);
 360		} else {
 361			message = new Message(conversation, "",
 362					conversation.getNextEncryption(forceEncryption()));
 363		}
 364		message.setCounterpart(conversation.getNextCounterpart());
 365		message.setType(Message.TYPE_FILE);
 366		String path = getFileBackend().getOriginalPath(uri);
 367		if (path!=null) {
 368			message.setRelativeFilePath(path);
 369			getFileBackend().updateFileParams(message);
 370			if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 371				getPgpEngine().encrypt(message, callback);
 372			} else {
 373				callback.success(message);
 374			}
 375		} else {
 376			new Thread(new Runnable() {
 377				@Override
 378				public void run() {
 379					try {
 380						getFileBackend().copyFileToPrivateStorage(message, uri);
 381						getFileBackend().updateFileParams(message);
 382						if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 383							getPgpEngine().encrypt(message, callback);
 384						} else {
 385							callback.success(message);
 386						}
 387					} catch (FileBackend.FileCopyException e) {
 388						callback.error(e.getResId(),message);
 389					}
 390				}
 391			}).start();
 392
 393		}
 394	}
 395
 396	public void attachImageToConversation(final Conversation conversation,
 397			final Uri uri, final UiCallback<Message> callback) {
 398		final Message message;
 399		if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 400			message = new Message(conversation, "",
 401					Message.ENCRYPTION_DECRYPTED);
 402		} else {
 403			message = new Message(conversation, "",
 404					conversation.getNextEncryption(forceEncryption()));
 405		}
 406		message.setCounterpart(conversation.getNextCounterpart());
 407		message.setType(Message.TYPE_IMAGE);
 408		new Thread(new Runnable() {
 409
 410			@Override
 411			public void run() {
 412				try {
 413					getFileBackend().copyImageToPrivateStorage(message, uri);
 414					if (conversation.getNextEncryption(forceEncryption()) == Message.ENCRYPTION_PGP) {
 415						getPgpEngine().encrypt(message, callback);
 416					} else {
 417						callback.success(message);
 418					}
 419				} catch (final FileBackend.FileCopyException e) {
 420					callback.error(e.getResId(), message);
 421				}
 422			}
 423		}).start();
 424	}
 425
 426	public Conversation find(Bookmark bookmark) {
 427		return find(bookmark.getAccount(), bookmark.getJid());
 428	}
 429
 430	public Conversation find(final Account account, final Jid jid) {
 431		return find(getConversations(), account, jid);
 432	}
 433
 434	@Override
 435	public int onStartCommand(Intent intent, int flags, int startId) {
 436		final String action = intent == null ? null : intent.getAction();
 437		if (action != null) {
 438			switch (action) {
 439				case ConnectivityManager.CONNECTIVITY_ACTION:
 440					if (hasInternetConnection() && Config.RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE) {
 441						resetAllAttemptCounts(true);
 442					}
 443					break;
 444				case ACTION_MERGE_PHONE_CONTACTS:
 445					if (mRestoredFromDatabase) {
 446						PhoneHelper.loadPhoneContacts(getApplicationContext(),
 447								new CopyOnWriteArrayList<Bundle>(),
 448								this);
 449					}
 450					return START_STICKY;
 451				case Intent.ACTION_SHUTDOWN:
 452					logoutAndSave();
 453					return START_NOT_STICKY;
 454				case ACTION_CLEAR_NOTIFICATION:
 455					mNotificationService.clear();
 456					break;
 457				case ACTION_DISABLE_FOREGROUND:
 458					getPreferences().edit().putBoolean("keep_foreground_service",false).commit();
 459					toggleForegroundService();
 460					break;
 461				case ACTION_TRY_AGAIN:
 462					resetAllAttemptCounts(false);
 463					break;
 464				case ACTION_DISABLE_ACCOUNT:
 465					try {
 466						String jid = intent.getStringExtra("account");
 467						Account account = jid == null ? null : findAccountByJid(Jid.fromString(jid));
 468						if (account != null) {
 469							account.setOption(Account.OPTION_DISABLED,true);
 470							updateAccount(account);
 471						}
 472					} catch (final InvalidJidException ignored) {
 473						break;
 474					}
 475					break;
 476			}
 477		}
 478		this.wakeLock.acquire();
 479
 480		for (Account account : accounts) {
 481			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 482				if (!hasInternetConnection()) {
 483					account.setStatus(Account.State.NO_INTERNET);
 484					if (statusListener != null) {
 485						statusListener.onStatusChanged(account);
 486					}
 487				} else {
 488					if (account.getStatus() == Account.State.NO_INTERNET) {
 489						account.setStatus(Account.State.OFFLINE);
 490						if (statusListener != null) {
 491							statusListener.onStatusChanged(account);
 492						}
 493					}
 494					if (account.getStatus() == Account.State.ONLINE) {
 495						long lastReceived = account.getXmppConnection().getLastPacketReceived();
 496						long lastSent = account.getXmppConnection().getLastPingSent();
 497						long pingInterval = "ui".equals(action) ? Config.PING_MIN_INTERVAL * 1000 : Config.PING_MAX_INTERVAL * 1000;
 498						long msToNextPing = (Math.max(lastReceived,lastSent) + pingInterval) - SystemClock.elapsedRealtime();
 499						long pingTimeoutIn = (lastSent + Config.PING_TIMEOUT * 1000) - SystemClock.elapsedRealtime();
 500						if (lastSent > lastReceived) {
 501							if (pingTimeoutIn < 0) {
 502								long age = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000;
 503								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ping timeout. connection age was: "+age+"s");
 504								this.reconnectAccount(account, true);
 505							} else {
 506								int secs = (int) (pingTimeoutIn / 1000);
 507								this.scheduleWakeUpCall(secs,account.getUuid().hashCode());
 508							}
 509						} else if (msToNextPing <= 0) {
 510							account.getXmppConnection().sendPing();
 511							Log.d(Config.LOGTAG, account.getJid().toBareJid()+" send ping");
 512							this.scheduleWakeUpCall(Config.PING_TIMEOUT,account.getUuid().hashCode());
 513						} else {
 514							this.scheduleWakeUpCall((int) (msToNextPing / 1000), account.getUuid().hashCode());
 515						}
 516					} else if (account.getStatus() == Account.State.OFFLINE) {
 517						reconnectAccount(account,true);
 518					} else if (account.getStatus() == Account.State.CONNECTING) {
 519						long timeout = Config.CONNECT_TIMEOUT - ((SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000);
 520						if (timeout < 0) {
 521							Log.d(Config.LOGTAG, account.getJid() + ": time out during connect reconnecting");
 522							reconnectAccount(account, true);
 523						} else {
 524							scheduleWakeUpCall((int) timeout,account.getUuid().hashCode());
 525						}
 526					} else {
 527						if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 528							reconnectAccount(account, true);
 529						}
 530					}
 531
 532				}
 533				if (mOnAccountUpdate != null) {
 534					mOnAccountUpdate.onAccountUpdate();
 535				}
 536			}
 537		}
 538		/*PowerManager pm = (PowerManager) this.getSystemService(Context.POWER_SERVICE);
 539			if (!pm.isScreenOn()) {
 540			removeStaleListeners();
 541			}*/
 542		if (wakeLock.isHeld()) {
 543			try {
 544				wakeLock.release();
 545			} catch (final RuntimeException ignored) {
 546			}
 547		}
 548		return START_STICKY;
 549	}
 550
 551	private void resetAllAttemptCounts(boolean reallyAll) {
 552		Log.d(Config.LOGTAG,"resetting all attepmt counts");
 553		for(Account account : accounts) {
 554			if (account.hasErrorStatus() || reallyAll) {
 555				final XmppConnection connection = account.getXmppConnection();
 556				if (connection != null) {
 557					connection.resetAttemptCount();
 558				}
 559			}
 560		}
 561	}
 562
 563	public boolean hasInternetConnection() {
 564		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 565			.getSystemService(Context.CONNECTIVITY_SERVICE);
 566		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 567		return activeNetwork != null && activeNetwork.isConnected();
 568	}
 569
 570	@SuppressLint("TrulyRandom")
 571	@Override
 572	public void onCreate() {
 573		ExceptionHelper.init(getApplicationContext());
 574		PRNGFixes.apply();
 575		this.mRandom = new SecureRandom();
 576		updateMemorizingTrustmanager();
 577		final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
 578		final int cacheSize = maxMemory / 8;
 579		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
 580			@Override
 581			protected int sizeOf(final String key, final Bitmap bitmap) {
 582				return bitmap.getByteCount() / 1024;
 583			}
 584		};
 585
 586		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 587		this.accounts = databaseBackend.getAccounts();
 588
 589		for (final Account account : this.accounts) {
 590			account.initAccountServices(this);
 591		}
 592		restoreFromDatabase();
 593
 594		getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 595		this.fileObserver.startWatching();
 596		this.pgpServiceConnection = new OpenPgpServiceConnection(getApplicationContext(), "org.sufficientlysecure.keychain");
 597		this.pgpServiceConnection.bindToService();
 598
 599		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 600		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,"XmppConnectionService");
 601		toggleForegroundService();
 602	}
 603
 604	public void toggleForegroundService() {
 605		if (getPreferences().getBoolean("keep_foreground_service",false)) {
 606			startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, this.mNotificationService.createForegroundNotification());
 607		} else {
 608			stopForeground(true);
 609		}
 610	}
 611
 612	@Override
 613	public void onTaskRemoved(final Intent rootIntent) {
 614		super.onTaskRemoved(rootIntent);
 615		if (!getPreferences().getBoolean("keep_foreground_service",false)) {
 616			this.logoutAndSave();
 617		}
 618	}
 619
 620	private void logoutAndSave() {
 621		for (final Account account : accounts) {
 622			databaseBackend.writeRoster(account.getRoster());
 623			if (account.getXmppConnection() != null) {
 624				disconnect(account, false);
 625			}
 626		}
 627		Context context = getApplicationContext();
 628		AlarmManager alarmManager = (AlarmManager) context
 629			.getSystemService(Context.ALARM_SERVICE);
 630		Intent intent = new Intent(context, EventReceiver.class);
 631		alarmManager.cancel(PendingIntent.getBroadcast(context, 0, intent, 0));
 632		Log.d(Config.LOGTAG, "good bye");
 633		stopSelf();
 634	}
 635
 636	protected void scheduleWakeUpCall(int seconds, int requestCode) {
 637		final long timeToWake = SystemClock.elapsedRealtime() + (seconds < 0 ? 1 : seconds + 1) * 1000;
 638
 639		Context context = getApplicationContext();
 640		AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
 641
 642		Intent intent = new Intent(context, EventReceiver.class);
 643		intent.setAction("ping");
 644		PendingIntent alarmIntent = PendingIntent.getBroadcast(context, requestCode, intent, 0);
 645		alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, alarmIntent);
 646	}
 647
 648	public XmppConnection createConnection(final Account account) {
 649		final SharedPreferences sharedPref = getPreferences();
 650		account.setResource(sharedPref.getString("resource", "mobile")
 651				.toLowerCase(Locale.getDefault()));
 652		final XmppConnection connection = new XmppConnection(account, this);
 653		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
 654		connection.setOnStatusChangedListener(this.statusListener);
 655		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
 656		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
 657		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 658		connection.setOnBindListener(this.mOnBindListener);
 659		connection.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
 660		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mMessageArchiveService);
 661		return connection;
 662	}
 663
 664	public void sendChatState(Conversation conversation) {
 665		if (sendChatStates()) {
 666			MessagePacket packet = mMessageGenerator.generateChatState(conversation);
 667			sendMessagePacket(conversation.getAccount(), packet);
 668		}
 669	}
 670
 671	public void sendMessage(final Message message) {
 672		final Account account = message.getConversation().getAccount();
 673		account.deactivateGracePeriod();
 674		final Conversation conv = message.getConversation();
 675		MessagePacket packet = null;
 676		boolean saveInDb = true;
 677		boolean send = false;
 678		if (account.getStatus() == Account.State.ONLINE
 679				&& account.getXmppConnection() != null) {
 680			if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) {
 681				if (message.getCounterpart() != null) {
 682					if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 683						if (!conv.hasValidOtrSession()) {
 684							conv.startOtrSession(message.getCounterpart().getResourcepart(),true);
 685							message.setStatus(Message.STATUS_WAITING);
 686						} else if (conv.hasValidOtrSession()
 687								&& conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 688							mJingleConnectionManager
 689								.createNewConnection(message);
 690								}
 691					} else {
 692						mJingleConnectionManager.createNewConnection(message);
 693					}
 694				} else {
 695					if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 696						conv.startOtrIfNeeded();
 697					}
 698					message.setStatus(Message.STATUS_WAITING);
 699				}
 700			} else {
 701				if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 702					if (!conv.hasValidOtrSession() && (message.getCounterpart() != null)) {
 703						conv.startOtrSession(message.getCounterpart().getResourcepart(), true);
 704						message.setStatus(Message.STATUS_WAITING);
 705					} else if (conv.hasValidOtrSession()) {
 706						if (conv.getOtrSession().getSessionStatus() == SessionStatus.ENCRYPTED) {
 707							packet = mMessageGenerator.generateOtrChat(message);
 708							send = true;
 709						} else {
 710							message.setStatus(Message.STATUS_WAITING);
 711							conv.startOtrIfNeeded();
 712						}
 713					} else {
 714						message.setStatus(Message.STATUS_WAITING);
 715					}
 716				} else if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 717					message.getConversation().endOtrIfNeeded();
 718					message.getConversation().findUnsentMessagesWithOtrEncryption(new Conversation.OnMessageFound() {
 719						@Override
 720						public void onMessageFound(Message message) {
 721							markMessage(message,Message.STATUS_SEND_FAILED);
 722						}
 723					});
 724					packet = mMessageGenerator.generatePgpChat(message);
 725					send = true;
 726				} else {
 727					message.getConversation().endOtrIfNeeded();
 728					message.getConversation().findUnsentMessagesWithOtrEncryption(new Conversation.OnMessageFound() {
 729						@Override
 730						public void onMessageFound(Message message) {
 731							markMessage(message,Message.STATUS_SEND_FAILED);
 732						}
 733					});
 734					packet = mMessageGenerator.generateChat(message);
 735					send = true;
 736				}
 737			}
 738			if (!account.getXmppConnection().getFeatures().sm()
 739					&& conv.getMode() != Conversation.MODE_MULTI) {
 740				message.setStatus(Message.STATUS_SEND);
 741					}
 742		} else {
 743			message.setStatus(Message.STATUS_WAITING);
 744			if (message.getType() == Message.TYPE_TEXT) {
 745				if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 746					String pgpBody = message.getEncryptedBody();
 747					String decryptedBody = message.getBody();
 748					message.setBody(pgpBody);
 749					message.setEncryption(Message.ENCRYPTION_PGP);
 750					databaseBackend.createMessage(message);
 751					saveInDb = false;
 752					message.setBody(decryptedBody);
 753					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 754				} else if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 755					if (!conv.hasValidOtrSession()
 756							&& message.getCounterpart() != null) {
 757						conv.startOtrSession(message.getCounterpart().getResourcepart(), false);
 758							}
 759				}
 760			}
 761
 762		}
 763		conv.add(message);
 764		if (saveInDb) {
 765			if (message.getEncryption() == Message.ENCRYPTION_NONE
 766					|| saveEncryptedMessages()) {
 767				databaseBackend.createMessage(message);
 768					}
 769		}
 770		if ((send) && (packet != null)) {
 771			if (conv.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
 772				if (this.sendChatStates()) {
 773					packet.addChild(ChatState.toElement(conv.getOutgoingChatState()));
 774				}
 775			}
 776			sendMessagePacket(account, packet);
 777		}
 778		updateConversationUi();
 779	}
 780
 781	private void sendUnsentMessages(final Conversation conversation) {
 782		conversation.findWaitingMessages(new Conversation.OnMessageFound() {
 783
 784			@Override
 785			public void onMessageFound(Message message) {
 786				resendMessage(message);
 787			}
 788		});
 789	}
 790
 791	private void resendMessage(final Message message) {
 792		Account account = message.getConversation().getAccount();
 793		MessagePacket packet = null;
 794		if (message.getEncryption() == Message.ENCRYPTION_OTR) {
 795			Presences presences = message.getConversation().getContact()
 796				.getPresences();
 797			if (!message.getConversation().hasValidOtrSession()) {
 798				if ((message.getCounterpart() != null)
 799						&& (presences.has(message.getCounterpart().getResourcepart()))) {
 800					message.getConversation().startOtrSession(message.getCounterpart().getResourcepart(), true);
 801				} else {
 802					if (presences.size() == 1) {
 803						String presence = presences.asStringArray()[0];
 804						message.getConversation().startOtrSession(presence, true);
 805					}
 806				}
 807			} else {
 808				if (message.getConversation().getOtrSession()
 809						.getSessionStatus() == SessionStatus.ENCRYPTED) {
 810					try {
 811						message.setCounterpart(Jid.fromSessionID(message.getConversation().getOtrSession().getSessionID()));
 812						if (message.getType() == Message.TYPE_TEXT) {
 813							packet = mMessageGenerator.generateOtrChat(message,
 814									true);
 815						} else if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) {
 816							mJingleConnectionManager.createNewConnection(message);
 817						}
 818					} catch (final InvalidJidException ignored) {
 819
 820					}
 821						}
 822			}
 823		} else if (message.getType() == Message.TYPE_TEXT) {
 824			if (message.getEncryption() == Message.ENCRYPTION_NONE) {
 825				packet = mMessageGenerator.generateChat(message, true);
 826			} else if ((message.getEncryption() == Message.ENCRYPTION_DECRYPTED)
 827					|| (message.getEncryption() == Message.ENCRYPTION_PGP)) {
 828				packet = mMessageGenerator.generatePgpChat(message, true);
 829					}
 830		} else if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) {
 831			Contact contact = message.getConversation().getContact();
 832			Presences presences = contact.getPresences();
 833			if ((message.getCounterpart() != null)
 834					&& (presences.has(message.getCounterpart().getResourcepart()))) {
 835				mJingleConnectionManager.createNewConnection(message);
 836			} else {
 837				if (presences.size() == 1) {
 838					String presence = presences.asStringArray()[0];
 839					try {
 840						message.setCounterpart(Jid.fromParts(contact.getJid().getLocalpart(), contact.getJid().getDomainpart(), presence));
 841					} catch (InvalidJidException e) {
 842						return;
 843					}
 844					mJingleConnectionManager.createNewConnection(message);
 845				}
 846			}
 847		}
 848		if (packet != null) {
 849			if (!account.getXmppConnection().getFeatures().sm()
 850					&& message.getConversation().getMode() != Conversation.MODE_MULTI) {
 851				markMessage(message, Message.STATUS_SEND);
 852			} else {
 853				markMessage(message, Message.STATUS_UNSEND);
 854			}
 855			if (message.getConversation().setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
 856				if (this.sendChatStates()) {
 857					packet.addChild(ChatState.toElement(message.getConversation().getOutgoingChatState()));
 858				}
 859			}
 860			sendMessagePacket(account, packet);
 861		}
 862	}
 863
 864	public void fetchRosterFromServer(final Account account) {
 865		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
 866		if (!"".equals(account.getRosterVersion())) {
 867			Log.d(Config.LOGTAG, account.getJid().toBareJid()
 868					+ ": fetching roster version " + account.getRosterVersion());
 869		} else {
 870			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching roster");
 871		}
 872		iqPacket.query(Xmlns.ROSTER).setAttribute("ver",
 873				account.getRosterVersion());
 874		account.getXmppConnection().sendIqPacket(iqPacket, mIqParser);
 875	}
 876
 877	public void fetchBookmarks(final Account account) {
 878		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
 879		final Element query = iqPacket.query("jabber:iq:private");
 880		query.addChild("storage", "storage:bookmarks");
 881		final OnIqPacketReceived callback = new OnIqPacketReceived() {
 882
 883			@Override
 884			public void onIqPacketReceived(final Account account, final IqPacket packet) {
 885				final Element query = packet.query();
 886				final List<Bookmark> bookmarks = new CopyOnWriteArrayList<>();
 887				final Element storage = query.findChild("storage",
 888						"storage:bookmarks");
 889				if (storage != null) {
 890					for (final Element item : storage.getChildren()) {
 891						if (item.getName().equals("conference")) {
 892							final Bookmark bookmark = Bookmark.parse(item, account);
 893							bookmarks.add(bookmark);
 894							Conversation conversation = find(bookmark);
 895							if (conversation != null) {
 896								conversation.setBookmark(bookmark);
 897							} else if (bookmark.autojoin() && bookmark.getJid() != null) {
 898								conversation = findOrCreateConversation(
 899										account, bookmark.getJid(), true);
 900								conversation.setBookmark(bookmark);
 901								joinMuc(conversation);
 902							}
 903						}
 904					}
 905				}
 906				account.setBookmarks(bookmarks);
 907			}
 908		};
 909		sendIqPacket(account, iqPacket, callback);
 910	}
 911
 912	public void pushBookmarks(Account account) {
 913		IqPacket iqPacket = new IqPacket(IqPacket.TYPE.SET);
 914		Element query = iqPacket.query("jabber:iq:private");
 915		Element storage = query.addChild("storage", "storage:bookmarks");
 916		for (Bookmark bookmark : account.getBookmarks()) {
 917			storage.addChild(bookmark);
 918		}
 919		sendIqPacket(account, iqPacket, mDefaultIqHandler);
 920	}
 921
 922	public void onPhoneContactsLoaded(final List<Bundle> phoneContacts) {
 923		if (mPhoneContactMergerThread != null) {
 924			mPhoneContactMergerThread.interrupt();
 925		}
 926		mPhoneContactMergerThread = new Thread(new Runnable() {
 927			@Override
 928			public void run() {
 929				Log.d(Config.LOGTAG,"start merging phone contacts with roster");
 930				for (Account account : accounts) {
 931					account.getRoster().clearSystemAccounts();
 932					for (Bundle phoneContact : phoneContacts) {
 933						if (Thread.interrupted()) {
 934							Log.d(Config.LOGTAG,"interrupted merging phone contacts");
 935							return;
 936						}
 937						Jid jid;
 938						try {
 939							jid = Jid.fromString(phoneContact.getString("jid"));
 940						} catch (final InvalidJidException e) {
 941							continue;
 942						}
 943						final Contact contact = account.getRoster().getContact(jid);
 944						String systemAccount = phoneContact.getInt("phoneid")
 945							+ "#"
 946							+ phoneContact.getString("lookup");
 947						contact.setSystemAccount(systemAccount);
 948						contact.setPhotoUri(phoneContact.getString("photouri"));
 949						getAvatarService().clear(contact);
 950						contact.setSystemName(phoneContact.getString("displayname"));
 951					}
 952				}
 953				Log.d(Config.LOGTAG,"finished merging phone contacts");
 954				updateAccountUi();
 955			}
 956		});
 957		mPhoneContactMergerThread.start();
 958	}
 959
 960	private void restoreFromDatabase() {
 961		synchronized (this.conversations) {
 962			final Map<String, Account> accountLookupTable = new Hashtable<>();
 963			for (Account account : this.accounts) {
 964				accountLookupTable.put(account.getUuid(), account);
 965			}
 966			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
 967			for (Conversation conversation : this.conversations) {
 968				Account account = accountLookupTable.get(conversation.getAccountUuid());
 969				conversation.setAccount(account);
 970			}
 971			new Thread(new Runnable() {
 972				@Override
 973				public void run() {
 974					Log.d(Config.LOGTAG,"restoring roster");
 975					for(Account account : accounts) {
 976						databaseBackend.readRoster(account.getRoster());
 977					}
 978					getBitmapCache().evictAll();
 979					Looper.prepare();
 980					PhoneHelper.loadPhoneContacts(getApplicationContext(),
 981							new CopyOnWriteArrayList<Bundle>(),
 982							XmppConnectionService.this);
 983					Log.d(Config.LOGTAG,"restoring messages");
 984					for (Conversation conversation : conversations) {
 985						conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
 986						checkDeletedFiles(conversation);
 987					}
 988					mRestoredFromDatabase = true;
 989					Log.d(Config.LOGTAG,"restored all messages");
 990					updateConversationUi();
 991				}
 992			}).start();
 993		}
 994	}
 995
 996	public List<Conversation> getConversations() {
 997		return this.conversations;
 998	}
 999
1000	private void checkDeletedFiles(Conversation conversation) {
1001		conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1002
1003			@Override
1004			public void onMessageFound(Message message) {
1005				if (!getFileBackend().isFileAvailable(message)) {
1006					message.setDownloadable(new DownloadablePlaceholder(Downloadable.STATUS_DELETED));
1007				}
1008			}
1009		});
1010	}
1011
1012	private void markFileDeleted(String uuid) {
1013		for (Conversation conversation : getConversations()) {
1014			Message message = conversation.findMessageWithFileAndUuid(uuid);
1015			if (message != null) {
1016				if (!getFileBackend().isFileAvailable(message)) {
1017					message.setDownloadable(new DownloadablePlaceholder(Downloadable.STATUS_DELETED));
1018					updateConversationUi();
1019				}
1020				return;
1021			}
1022		}
1023	}
1024
1025	public void populateWithOrderedConversations(final List<Conversation> list) {
1026		populateWithOrderedConversations(list, true);
1027	}
1028
1029	public void populateWithOrderedConversations(final List<Conversation> list, boolean includeConferences) {
1030		list.clear();
1031		if (includeConferences) {
1032			list.addAll(getConversations());
1033		} else {
1034			for (Conversation conversation : getConversations()) {
1035				if (conversation.getMode() == Conversation.MODE_SINGLE) {
1036					list.add(conversation);
1037				}
1038			}
1039		}
1040		Collections.sort(list, new Comparator<Conversation>() {
1041			@Override
1042			public int compare(Conversation lhs, Conversation rhs) {
1043				Message left = lhs.getLatestMessage();
1044				Message right = rhs.getLatestMessage();
1045				if (left.getTimeSent() > right.getTimeSent()) {
1046					return -1;
1047				} else if (left.getTimeSent() < right.getTimeSent()) {
1048					return 1;
1049				} else {
1050					return 0;
1051				}
1052			}
1053		});
1054	}
1055
1056	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
1057		Log.d(Config.LOGTAG, "load more messages for " + conversation.getName() + " prior to " + MessageGenerator.getTimestamp(timestamp));
1058		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation,callback)) {
1059			return;
1060		}
1061		new Thread(new Runnable() {
1062			@Override
1063			public void run() {
1064				final Account account = conversation.getAccount();
1065				List<Message> messages = databaseBackend.getMessages(conversation, 50,timestamp);
1066				if (messages.size() > 0) {
1067					conversation.addAll(0, messages);
1068					checkDeletedFiles(conversation);
1069					callback.onMoreMessagesLoaded(messages.size(), conversation);
1070				} else if (conversation.hasMessagesLeftOnServer()
1071						&& account.isOnlineAndConnected()
1072						&& account.getXmppConnection().getFeatures().mam()) {
1073					MessageArchiveService.Query query = getMessageArchiveService().query(conversation,0,timestamp - 1);
1074					if (query != null) {
1075						query.setCallback(callback);
1076					}
1077					callback.informUser(R.string.fetching_history_from_server);
1078				}
1079			}
1080		}).start();
1081	}
1082
1083	public List<Account> getAccounts() {
1084		return this.accounts;
1085	}
1086
1087	public Conversation find(final Iterable<Conversation> haystack, final Contact contact) {
1088		for (final Conversation conversation : haystack) {
1089			if (conversation.getContact() == contact) {
1090				return conversation;
1091			}
1092		}
1093		return null;
1094	}
1095
1096	public Conversation find(final Iterable<Conversation> haystack, final Account account, final Jid jid) {
1097		if (jid == null) {
1098			return null;
1099		}
1100		for (final Conversation conversation : haystack) {
1101			if ((account == null || conversation.getAccount() == account)
1102					&& (conversation.getJid().toBareJid().equals(jid.toBareJid()))) {
1103				return conversation;
1104			}
1105		}
1106		return null;
1107	}
1108
1109	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc) {
1110		return this.findOrCreateConversation(account, jid, muc, null);
1111	}
1112
1113	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final MessageArchiveService.Query query) {
1114		synchronized (this.conversations) {
1115			Conversation conversation = find(account, jid);
1116			if (conversation != null) {
1117				return conversation;
1118			}
1119			conversation = databaseBackend.findConversation(account, jid);
1120			if (conversation != null) {
1121				conversation.setStatus(Conversation.STATUS_AVAILABLE);
1122				conversation.setAccount(account);
1123				if (muc) {
1124					conversation.setMode(Conversation.MODE_MULTI);
1125					conversation.setContactJid(jid);
1126				} else {
1127					conversation.setMode(Conversation.MODE_SINGLE);
1128					conversation.setContactJid(jid.toBareJid());
1129				}
1130				conversation.setNextEncryption(-1);
1131				conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1132				this.databaseBackend.updateConversation(conversation);
1133			} else {
1134				String conversationName;
1135				Contact contact = account.getRoster().getContact(jid);
1136				if (contact != null) {
1137					conversationName = contact.getDisplayName();
1138				} else {
1139					conversationName = jid.getLocalpart();
1140				}
1141				if (muc) {
1142					conversation = new Conversation(conversationName, account, jid,
1143							Conversation.MODE_MULTI);
1144				} else {
1145					conversation = new Conversation(conversationName, account, jid.toBareJid(),
1146							Conversation.MODE_SINGLE);
1147				}
1148				this.databaseBackend.createConversation(conversation);
1149			}
1150			if (account.getXmppConnection() != null
1151					&& account.getXmppConnection().getFeatures().mam()
1152					&& !muc) {
1153				if (query == null) {
1154					this.mMessageArchiveService.query(conversation);
1155				} else {
1156					if (query.getConversation() == null) {
1157						this.mMessageArchiveService.query(conversation, query.getStart());
1158					}
1159				}
1160			}
1161			checkDeletedFiles(conversation);
1162			this.conversations.add(conversation);
1163			updateConversationUi();
1164			return conversation;
1165		}
1166	}
1167
1168	public void archiveConversation(Conversation conversation) {
1169		getNotificationService().clear(conversation);
1170		conversation.setStatus(Conversation.STATUS_ARCHIVED);
1171		conversation.setNextEncryption(-1);
1172		synchronized (this.conversations) {
1173			if (conversation.getMode() == Conversation.MODE_MULTI) {
1174				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1175					Bookmark bookmark = conversation.getBookmark();
1176					if (bookmark != null && bookmark.autojoin()) {
1177						bookmark.setAutojoin(false);
1178						pushBookmarks(bookmark.getAccount());
1179					}
1180				}
1181				leaveMuc(conversation);
1182			} else {
1183				conversation.endOtrIfNeeded();
1184			}
1185			this.databaseBackend.updateConversation(conversation);
1186			this.conversations.remove(conversation);
1187			updateConversationUi();
1188		}
1189	}
1190
1191	public void createAccount(final Account account) {
1192		account.initAccountServices(this);
1193		databaseBackend.createAccount(account);
1194		this.accounts.add(account);
1195		this.reconnectAccountInBackground(account);
1196		updateAccountUi();
1197	}
1198
1199	public void updateAccount(final Account account) {
1200		this.statusListener.onStatusChanged(account);
1201		databaseBackend.updateAccount(account);
1202		reconnectAccount(account, false);
1203		updateAccountUi();
1204		getNotificationService().updateErrorNotification();
1205	}
1206
1207	public void updateAccountPasswordOnServer(final Account account, final String newPassword, final OnAccountPasswordChanged callback) {
1208		final IqPacket iq = getIqGenerator().generateSetPassword(account, newPassword);
1209		sendIqPacket(account, iq, new OnIqPacketReceived() {
1210			@Override
1211			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1212				if (packet.getType() == IqPacket.TYPE.RESULT) {
1213					account.setPassword(newPassword);
1214					databaseBackend.updateAccount(account);
1215					callback.onPasswordChangeSucceeded();
1216				} else {
1217					callback.onPasswordChangeFailed();
1218				}
1219			}
1220		});
1221	}
1222
1223	public void deleteAccount(final Account account) {
1224		synchronized (this.conversations) {
1225			for (final Conversation conversation : conversations) {
1226				if (conversation.getAccount() == account) {
1227					if (conversation.getMode() == Conversation.MODE_MULTI) {
1228						leaveMuc(conversation);
1229					} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
1230						conversation.endOtrIfNeeded();
1231					}
1232					conversations.remove(conversation);
1233				}
1234			}
1235			if (account.getXmppConnection() != null) {
1236				this.disconnect(account, true);
1237			}
1238			databaseBackend.deleteAccount(account);
1239			this.accounts.remove(account);
1240			updateAccountUi();
1241			getNotificationService().updateErrorNotification();
1242		}
1243	}
1244
1245	public void setOnConversationListChangedListener(OnConversationUpdate listener) {
1246		synchronized (this) {
1247			if (checkListeners()) {
1248				switchToForeground();
1249			}
1250			this.mOnConversationUpdate = listener;
1251			this.mNotificationService.setIsInForeground(true);
1252			if (this.convChangedListenerCount < 2) {
1253				this.convChangedListenerCount++;
1254			}
1255		}
1256	}
1257
1258	public void removeOnConversationListChangedListener() {
1259		synchronized (this) {
1260			this.convChangedListenerCount--;
1261			if (this.convChangedListenerCount <= 0) {
1262				this.convChangedListenerCount = 0;
1263				this.mOnConversationUpdate = null;
1264				this.mNotificationService.setIsInForeground(false);
1265				if (checkListeners()) {
1266					switchToBackground();
1267				}
1268			}
1269		}
1270	}
1271
1272	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
1273		synchronized (this) {
1274			if (checkListeners()) {
1275				switchToForeground();
1276			}
1277			this.mOnAccountUpdate = listener;
1278			if (this.accountChangedListenerCount < 2) {
1279				this.accountChangedListenerCount++;
1280			}
1281		}
1282	}
1283
1284	public void removeOnAccountListChangedListener() {
1285		synchronized (this) {
1286			this.accountChangedListenerCount--;
1287			if (this.accountChangedListenerCount <= 0) {
1288				this.mOnAccountUpdate = null;
1289				this.accountChangedListenerCount = 0;
1290				if (checkListeners()) {
1291					switchToBackground();
1292				}
1293			}
1294		}
1295	}
1296
1297	public void setOnRosterUpdateListener(final OnRosterUpdate listener) {
1298		synchronized (this) {
1299			if (checkListeners()) {
1300				switchToForeground();
1301			}
1302			this.mOnRosterUpdate = listener;
1303			if (this.rosterChangedListenerCount < 2) {
1304				this.rosterChangedListenerCount++;
1305			}
1306		}
1307	}
1308
1309	public void removeOnRosterUpdateListener() {
1310		synchronized (this) {
1311			this.rosterChangedListenerCount--;
1312			if (this.rosterChangedListenerCount <= 0) {
1313				this.rosterChangedListenerCount = 0;
1314				this.mOnRosterUpdate = null;
1315				if (checkListeners()) {
1316					switchToBackground();
1317				}
1318			}
1319		}
1320	}
1321
1322	public void setOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
1323		synchronized (this) {
1324			if (checkListeners()) {
1325				switchToForeground();
1326			}
1327			this.mOnUpdateBlocklist = listener;
1328			if (this.updateBlocklistListenerCount < 2) {
1329				this.updateBlocklistListenerCount++;
1330			}
1331		}
1332	}
1333
1334	public void removeOnUpdateBlocklistListener() {
1335		synchronized (this) {
1336			this.updateBlocklistListenerCount--;
1337			if (this.updateBlocklistListenerCount <= 0) {
1338				this.updateBlocklistListenerCount = 0;
1339				this.mOnUpdateBlocklist = null;
1340				if (checkListeners()) {
1341					switchToBackground();
1342				}
1343			}
1344		}
1345	}
1346
1347	public void setOnMucRosterUpdateListener(OnMucRosterUpdate listener) {
1348		synchronized (this) {
1349			if (checkListeners()) {
1350				switchToForeground();
1351			}
1352			this.mOnMucRosterUpdate = listener;
1353			if (this.mucRosterChangedListenerCount < 2) {
1354				this.mucRosterChangedListenerCount++;
1355			}
1356		}
1357	}
1358
1359	public void removeOnMucRosterUpdateListener() {
1360		synchronized (this) {
1361			this.mucRosterChangedListenerCount--;
1362			if (this.mucRosterChangedListenerCount <= 0) {
1363				this.mucRosterChangedListenerCount = 0;
1364				this.mOnMucRosterUpdate = null;
1365				if (checkListeners()) {
1366					switchToBackground();
1367				}
1368			}
1369		}
1370	}
1371
1372	private boolean checkListeners() {
1373		return (this.mOnAccountUpdate == null
1374				&& this.mOnConversationUpdate == null
1375				&& this.mOnRosterUpdate == null
1376				&& this.mOnUpdateBlocklist == null);
1377	}
1378
1379	private void switchToForeground() {
1380		for (Account account : getAccounts()) {
1381			if (account.getStatus() == Account.State.ONLINE) {
1382				XmppConnection connection = account.getXmppConnection();
1383				if (connection != null && connection.getFeatures().csi()) {
1384					connection.sendActive();
1385				}
1386			}
1387		}
1388		Log.d(Config.LOGTAG, "app switched into foreground");
1389	}
1390
1391	private void switchToBackground() {
1392		for (Account account : getAccounts()) {
1393			if (account.getStatus() == Account.State.ONLINE) {
1394				XmppConnection connection = account.getXmppConnection();
1395				if (connection != null && connection.getFeatures().csi()) {
1396					connection.sendInactive();
1397				}
1398			}
1399		}
1400		for(Conversation conversation : getConversations()) {
1401			conversation.setIncomingChatState(ChatState.ACTIVE);
1402		}
1403		this.mNotificationService.setIsInForeground(false);
1404		Log.d(Config.LOGTAG, "app switched into background");
1405	}
1406
1407	private void connectMultiModeConversations(Account account) {
1408		List<Conversation> conversations = getConversations();
1409		for (Conversation conversation : conversations) {
1410			if ((conversation.getMode() == Conversation.MODE_MULTI)
1411					&& (conversation.getAccount() == account)) {
1412				conversation.resetMucOptions();
1413				joinMuc(conversation);
1414			}
1415		}
1416	}
1417
1418	public void joinMuc(Conversation conversation) {
1419		Account account = conversation.getAccount();
1420		account.pendingConferenceJoins.remove(conversation);
1421		account.pendingConferenceLeaves.remove(conversation);
1422		if (account.getStatus() == Account.State.ONLINE) {
1423			final String nick = conversation.getMucOptions().getProposedNick();
1424			final Jid joinJid = conversation.getMucOptions().createJoinJid(nick);
1425			if (joinJid == null) {
1426				return; //safety net
1427			}
1428			Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": joining conversation " + joinJid.toString());
1429			PresencePacket packet = new PresencePacket();
1430			packet.setFrom(conversation.getAccount().getJid());
1431			packet.setTo(joinJid);
1432			Element x = packet.addChild("x", "http://jabber.org/protocol/muc");
1433			if (conversation.getMucOptions().getPassword() != null) {
1434				x.addChild("password").setContent(conversation.getMucOptions().getPassword());
1435			}
1436			x.addChild("history").setAttribute("since", PresenceGenerator.getTimestamp(conversation.getLastMessageTransmitted()));
1437			String sig = account.getPgpSignature();
1438			if (sig != null) {
1439				packet.addChild("status").setContent("online");
1440				packet.addChild("x", "jabber:x:signed").setContent(sig);
1441			}
1442			sendPresencePacket(account, packet);
1443			fetchConferenceConfiguration(conversation);
1444			if (!joinJid.equals(conversation.getJid())) {
1445				conversation.setContactJid(joinJid);
1446				databaseBackend.updateConversation(conversation);
1447			}
1448			conversation.setHasMessagesLeftOnServer(false);
1449		} else {
1450			account.pendingConferenceJoins.add(conversation);
1451		}
1452	}
1453
1454	public void providePasswordForMuc(Conversation conversation, String password) {
1455		if (conversation.getMode() == Conversation.MODE_MULTI) {
1456			conversation.getMucOptions().setPassword(password);
1457			if (conversation.getBookmark() != null) {
1458				conversation.getBookmark().setAutojoin(true);
1459				pushBookmarks(conversation.getAccount());
1460			}
1461			databaseBackend.updateConversation(conversation);
1462			joinMuc(conversation);
1463		}
1464	}
1465
1466	public void renameInMuc(final Conversation conversation, final String nick, final UiCallback<Conversation> callback) {
1467		final MucOptions options = conversation.getMucOptions();
1468		final Jid joinJid = options.createJoinJid(nick);
1469		if (options.online()) {
1470			Account account = conversation.getAccount();
1471			options.setOnRenameListener(new OnRenameListener() {
1472
1473				@Override
1474				public void onSuccess() {
1475					conversation.setContactJid(joinJid);
1476					databaseBackend.updateConversation(conversation);
1477					Bookmark bookmark = conversation.getBookmark();
1478					if (bookmark != null) {
1479						bookmark.setNick(nick);
1480						pushBookmarks(bookmark.getAccount());
1481					}
1482					callback.success(conversation);
1483				}
1484
1485				@Override
1486				public void onFailure() {
1487					callback.error(R.string.nick_in_use, conversation);
1488				}
1489			});
1490
1491			PresencePacket packet = new PresencePacket();
1492			packet.setTo(joinJid);
1493			packet.setFrom(conversation.getAccount().getJid());
1494
1495			String sig = account.getPgpSignature();
1496			if (sig != null) {
1497				packet.addChild("status").setContent("online");
1498				packet.addChild("x", "jabber:x:signed").setContent(sig);
1499			}
1500			sendPresencePacket(account, packet);
1501		} else {
1502			conversation.setContactJid(joinJid);
1503			databaseBackend.updateConversation(conversation);
1504			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1505				Bookmark bookmark = conversation.getBookmark();
1506				if (bookmark != null) {
1507					bookmark.setNick(nick);
1508					pushBookmarks(bookmark.getAccount());
1509				}
1510				joinMuc(conversation);
1511			}
1512		}
1513	}
1514
1515	public void leaveMuc(Conversation conversation) {
1516		Account account = conversation.getAccount();
1517		account.pendingConferenceJoins.remove(conversation);
1518		account.pendingConferenceLeaves.remove(conversation);
1519		if (account.getStatus() == Account.State.ONLINE) {
1520			PresencePacket packet = new PresencePacket();
1521			packet.setTo(conversation.getJid());
1522			packet.setFrom(conversation.getAccount().getJid());
1523			packet.setAttribute("type", "unavailable");
1524			sendPresencePacket(conversation.getAccount(), packet);
1525			conversation.getMucOptions().setOffline();
1526			conversation.deregisterWithBookmark();
1527			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid()
1528					+ ": leaving muc " + conversation.getJid());
1529		} else {
1530			account.pendingConferenceLeaves.add(conversation);
1531		}
1532	}
1533
1534	private String findConferenceServer(final Account account) {
1535		String server;
1536		if (account.getXmppConnection() != null) {
1537			server = account.getXmppConnection().getMucServer();
1538			if (server != null) {
1539				return server;
1540			}
1541		}
1542		for (Account other : getAccounts()) {
1543			if (other != account && other.getXmppConnection() != null) {
1544				server = other.getXmppConnection().getMucServer();
1545				if (server != null) {
1546					return server;
1547				}
1548			}
1549		}
1550		return null;
1551	}
1552
1553	public void createAdhocConference(final Account account, final Iterable<Jid> jids, final UiCallback<Conversation> callback) {
1554		Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": creating adhoc conference with " + jids.toString());
1555		if (account.getStatus() == Account.State.ONLINE) {
1556			try {
1557				String server = findConferenceServer(account);
1558				if (server == null) {
1559					if (callback != null) {
1560						callback.error(R.string.no_conference_server_found, null);
1561					}
1562					return;
1563				}
1564				String name = new BigInteger(75, getRNG()).toString(32);
1565				Jid jid = Jid.fromParts(name, server, null);
1566				final Conversation conversation = findOrCreateConversation(account, jid, true);
1567				joinMuc(conversation);
1568				Bundle options = new Bundle();
1569				options.putString("muc#roomconfig_persistentroom", "1");
1570				options.putString("muc#roomconfig_membersonly", "1");
1571				options.putString("muc#roomconfig_publicroom", "0");
1572				options.putString("muc#roomconfig_whois", "anyone");
1573				pushConferenceConfiguration(conversation, options, new OnConferenceOptionsPushed() {
1574					@Override
1575					public void onPushSucceeded() {
1576						for (Jid invite : jids) {
1577							invite(conversation, invite);
1578						}
1579						if (account.countPresences() > 1) {
1580							directInvite(conversation, account.getJid().toBareJid());
1581						}
1582						if (callback != null) {
1583							callback.success(conversation);
1584						}
1585					}
1586
1587					@Override
1588					public void onPushFailed() {
1589						if (callback != null) {
1590							callback.error(R.string.conference_creation_failed, conversation);
1591						}
1592					}
1593				});
1594
1595			} catch (InvalidJidException e) {
1596				if (callback != null) {
1597					callback.error(R.string.conference_creation_failed, null);
1598				}
1599			}
1600		} else {
1601			if (callback != null) {
1602				callback.error(R.string.not_connected_try_again, null);
1603			}
1604		}
1605	}
1606
1607	public void fetchConferenceConfiguration(final Conversation conversation) {
1608		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
1609		request.setTo(conversation.getJid().toBareJid());
1610		request.query("http://jabber.org/protocol/disco#info");
1611		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
1612			@Override
1613			public void onIqPacketReceived(Account account, IqPacket packet) {
1614				if (packet.getType() != IqPacket.TYPE.ERROR) {
1615					ArrayList<String> features = new ArrayList<>();
1616					for (Element child : packet.query().getChildren()) {
1617						if (child != null && child.getName().equals("feature")) {
1618							String var = child.getAttribute("var");
1619							if (var != null) {
1620								features.add(var);
1621							}
1622						}
1623					}
1624					conversation.getMucOptions().updateFeatures(features);
1625					updateConversationUi();
1626				}
1627			}
1628		});
1629	}
1630
1631	public void pushConferenceConfiguration(final Conversation conversation, final Bundle options, final OnConferenceOptionsPushed callback) {
1632		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
1633		request.setTo(conversation.getJid().toBareJid());
1634		request.query("http://jabber.org/protocol/muc#owner");
1635		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
1636			@Override
1637			public void onIqPacketReceived(Account account, IqPacket packet) {
1638				if (packet.getType() != IqPacket.TYPE.ERROR) {
1639					Data data = Data.parse(packet.query().findChild("x", "jabber:x:data"));
1640					for (Field field : data.getFields()) {
1641						if (options.containsKey(field.getName())) {
1642							field.setValue(options.getString(field.getName()));
1643						}
1644					}
1645					data.submit();
1646					IqPacket set = new IqPacket(IqPacket.TYPE.SET);
1647					set.setTo(conversation.getJid().toBareJid());
1648					set.query("http://jabber.org/protocol/muc#owner").addChild(data);
1649					sendIqPacket(account, set, new OnIqPacketReceived() {
1650						@Override
1651						public void onIqPacketReceived(Account account, IqPacket packet) {
1652							if (packet.getType() == IqPacket.TYPE.RESULT) {
1653								if (callback != null) {
1654									callback.onPushSucceeded();
1655								}
1656							} else {
1657								if (callback != null) {
1658									callback.onPushFailed();
1659								}
1660							}
1661						}
1662					});
1663				} else {
1664					if (callback != null) {
1665						callback.onPushFailed();
1666					}
1667				}
1668			}
1669		});
1670	}
1671
1672	public void pushSubjectToConference(final Conversation conference, final String subject) {
1673		MessagePacket packet = this.getMessageGenerator().conferenceSubject(conference, subject);
1674		this.sendMessagePacket(conference.getAccount(), packet);
1675		final MucOptions mucOptions = conference.getMucOptions();
1676		final MucOptions.User self = mucOptions.getSelf();
1677		if (!mucOptions.persistent() && self.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
1678			Bundle options = new Bundle();
1679			options.putString("muc#roomconfig_persistentroom", "1");
1680			this.pushConferenceConfiguration(conference, options, null);
1681		}
1682	}
1683
1684	public void changeAffiliationInConference(final Conversation conference, Jid user, MucOptions.Affiliation affiliation, final OnAffiliationChanged callback) {
1685		final Jid jid = user.toBareJid();
1686		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jid, affiliation.toString());
1687		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
1688			@Override
1689			public void onIqPacketReceived(Account account, IqPacket packet) {
1690				if (packet.getType() == IqPacket.TYPE.RESULT) {
1691					callback.onAffiliationChangedSuccessful(jid);
1692				} else {
1693					callback.onAffiliationChangeFailed(jid, R.string.could_not_change_affiliation);
1694				}
1695			}
1696		});
1697	}
1698
1699	public void changeAffiliationsInConference(final Conversation conference, MucOptions.Affiliation before, MucOptions.Affiliation after) {
1700		List<Jid> jids = new ArrayList<>();
1701		for (MucOptions.User user : conference.getMucOptions().getUsers()) {
1702			if (user.getAffiliation() == before) {
1703				jids.add(user.getJid());
1704			}
1705		}
1706		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
1707		sendIqPacket(conference.getAccount(), request, mDefaultIqHandler);
1708	}
1709
1710	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role, final OnRoleChanged callback) {
1711		IqPacket request = this.mIqGenerator.changeRole(conference, nick, role.toString());
1712		Log.d(Config.LOGTAG, request.toString());
1713		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
1714			@Override
1715			public void onIqPacketReceived(Account account, IqPacket packet) {
1716				Log.d(Config.LOGTAG, packet.toString());
1717				if (packet.getType() == IqPacket.TYPE.RESULT) {
1718					callback.onRoleChangedSuccessful(nick);
1719				} else {
1720					callback.onRoleChangeFailed(nick, R.string.could_not_change_role);
1721				}
1722			}
1723		});
1724	}
1725
1726	public void disconnect(Account account, boolean force) {
1727		if ((account.getStatus() == Account.State.ONLINE)
1728				|| (account.getStatus() == Account.State.DISABLED)) {
1729			if (!force) {
1730				List<Conversation> conversations = getConversations();
1731				for (Conversation conversation : conversations) {
1732					if (conversation.getAccount() == account) {
1733						if (conversation.getMode() == Conversation.MODE_MULTI) {
1734							leaveMuc(conversation);
1735						} else {
1736							if (conversation.endOtrIfNeeded()) {
1737								Log.d(Config.LOGTAG, account.getJid().toBareJid()
1738										+ ": ended otr session with "
1739										+ conversation.getJid());
1740							}
1741						}
1742					}
1743				}
1744				sendOfflinePresence(account);
1745			}
1746			account.getXmppConnection().disconnect(force);
1747		}
1748	}
1749
1750	@Override
1751	public IBinder onBind(Intent intent) {
1752		return mBinder;
1753	}
1754
1755	public void updateMessage(Message message) {
1756		databaseBackend.updateMessage(message);
1757		updateConversationUi();
1758	}
1759
1760	protected void syncDirtyContacts(Account account) {
1761		for (Contact contact : account.getRoster().getContacts()) {
1762			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
1763				pushContactToServer(contact);
1764			}
1765			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
1766				deleteContactOnServer(contact);
1767			}
1768		}
1769	}
1770
1771	public void createContact(Contact contact) {
1772		SharedPreferences sharedPref = getPreferences();
1773		boolean autoGrant = sharedPref.getBoolean("grant_new_contacts", true);
1774		if (autoGrant) {
1775			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
1776			contact.setOption(Contact.Options.ASKING);
1777		}
1778		pushContactToServer(contact);
1779	}
1780
1781	public void onOtrSessionEstablished(Conversation conversation) {
1782		final Account account = conversation.getAccount();
1783		final Session otrSession = conversation.getOtrSession();
1784		Log.d(Config.LOGTAG,
1785				account.getJid().toBareJid() + " otr session established with "
1786						+ conversation.getJid() + "/"
1787						+ otrSession.getSessionID().getUserID());
1788		conversation.findUnsentMessagesWithOtrEncryption(new Conversation.OnMessageFound() {
1789
1790			@Override
1791			public void onMessageFound(Message message) {
1792				SessionID id = otrSession.getSessionID();
1793				try {
1794					message.setCounterpart(Jid.fromString(id.getAccountID() + "/" + id.getUserID()));
1795				} catch (InvalidJidException e) {
1796					return;
1797				}
1798				if (message.getType() == Message.TYPE_TEXT) {
1799					MessagePacket outPacket = mMessageGenerator.generateOtrChat(message, true);
1800					if (outPacket != null) {
1801						message.setStatus(Message.STATUS_SEND);
1802						databaseBackend.updateMessage(message);
1803						sendMessagePacket(account, outPacket);
1804					}
1805				} else if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) {
1806					mJingleConnectionManager.createNewConnection(message);
1807				}
1808				updateConversationUi();
1809			}
1810		});
1811	}
1812
1813	public boolean renewSymmetricKey(Conversation conversation) {
1814		Account account = conversation.getAccount();
1815		byte[] symmetricKey = new byte[32];
1816		this.mRandom.nextBytes(symmetricKey);
1817		Session otrSession = conversation.getOtrSession();
1818		if (otrSession != null) {
1819			MessagePacket packet = new MessagePacket();
1820			packet.setType(MessagePacket.TYPE_CHAT);
1821			packet.setFrom(account.getJid());
1822			packet.addChild("private", "urn:xmpp:carbons:2");
1823			packet.addChild("no-copy", "urn:xmpp:hints");
1824			packet.setAttribute("to", otrSession.getSessionID().getAccountID() + "/"
1825					+ otrSession.getSessionID().getUserID());
1826			try {
1827				packet.setBody(otrSession
1828						.transformSending(CryptoHelper.FILETRANSFER
1829								+ CryptoHelper.bytesToHex(symmetricKey))[0]);
1830				sendMessagePacket(account, packet);
1831				conversation.setSymmetricKey(symmetricKey);
1832				return true;
1833			} catch (OtrException e) {
1834				return false;
1835			}
1836		}
1837		return false;
1838	}
1839
1840	public void pushContactToServer(final Contact contact) {
1841		contact.resetOption(Contact.Options.DIRTY_DELETE);
1842		contact.setOption(Contact.Options.DIRTY_PUSH);
1843		final Account account = contact.getAccount();
1844		if (account.getStatus() == Account.State.ONLINE) {
1845			final boolean ask = contact.getOption(Contact.Options.ASKING);
1846			final boolean sendUpdates = contact
1847					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
1848					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
1849			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
1850			iq.query(Xmlns.ROSTER).addChild(contact.asElement());
1851			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
1852			if (sendUpdates) {
1853				sendPresencePacket(account,
1854						mPresenceGenerator.sendPresenceUpdatesTo(contact));
1855			}
1856			if (ask) {
1857				sendPresencePacket(account,
1858						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
1859			}
1860		}
1861	}
1862
1863	public void publishAvatar(final Account account,
1864							  final Uri image,
1865							  final UiCallback<Avatar> callback) {
1866		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
1867		final int size = Config.AVATAR_SIZE;
1868		final Avatar avatar = getFileBackend()
1869				.getPepAvatar(image, size, format);
1870		if (avatar != null) {
1871			avatar.height = size;
1872			avatar.width = size;
1873			if (format.equals(Bitmap.CompressFormat.WEBP)) {
1874				avatar.type = "image/webp";
1875			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
1876				avatar.type = "image/jpeg";
1877			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
1878				avatar.type = "image/png";
1879			}
1880			if (!getFileBackend().save(avatar)) {
1881				callback.error(R.string.error_saving_avatar, avatar);
1882				return;
1883			}
1884			final IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
1885			this.sendIqPacket(account, packet, new OnIqPacketReceived() {
1886
1887				@Override
1888				public void onIqPacketReceived(Account account, IqPacket result) {
1889					if (result.getType() == IqPacket.TYPE.RESULT) {
1890						final IqPacket packet = XmppConnectionService.this.mIqGenerator
1891								.publishAvatarMetadata(avatar);
1892						sendIqPacket(account, packet, new OnIqPacketReceived() {
1893
1894							@Override
1895							public void onIqPacketReceived(Account account,
1896														   IqPacket result) {
1897								if (result.getType() == IqPacket.TYPE.RESULT) {
1898									if (account.setAvatar(avatar.getFilename())) {
1899										getAvatarService().clear(account);
1900										databaseBackend.updateAccount(account);
1901									}
1902									callback.success(avatar);
1903								} else {
1904									callback.error(
1905											R.string.error_publish_avatar_server_reject,
1906											avatar);
1907								}
1908							}
1909						});
1910					} else {
1911						callback.error(
1912								R.string.error_publish_avatar_server_reject,
1913								avatar);
1914					}
1915				}
1916			});
1917		} else {
1918			callback.error(R.string.error_publish_avatar_converting, null);
1919		}
1920	}
1921
1922	public void fetchAvatar(Account account, Avatar avatar) {
1923		fetchAvatar(account, avatar, null);
1924	}
1925
1926	private static String generateFetchKey(Account account, final Avatar avatar) {
1927		return account.getJid().toBareJid()+"_"+avatar.owner+"_"+avatar.sha1sum;
1928	}
1929
1930	public void fetchAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
1931		final String KEY = generateFetchKey(account, avatar);
1932		synchronized(this.mInProgressAvatarFetches) {
1933			if (this.mInProgressAvatarFetches.contains(KEY)) {
1934				return;
1935			} else {
1936				switch (avatar.origin) {
1937					case PEP:
1938						this.mInProgressAvatarFetches.add(KEY);
1939						fetchAvatarPep(account, avatar, callback);
1940						break;
1941					case VCARD:
1942						this.mInProgressAvatarFetches.add(KEY);
1943						fetchAvatarVcard(account, avatar, callback);
1944						break;
1945				}
1946			}
1947		}
1948	}
1949
1950	private void fetchAvatarPep(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
1951		IqPacket packet = this.mIqGenerator.retrievePepAvatar(avatar);
1952		sendIqPacket(account, packet, new OnIqPacketReceived() {
1953
1954			@Override
1955			public void onIqPacketReceived(Account account, IqPacket result) {
1956				synchronized (mInProgressAvatarFetches) {
1957					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
1958				}
1959				final String ERROR = account.getJid().toBareJid()
1960						+ ": fetching avatar for " + avatar.owner + " failed ";
1961				if (result.getType() == IqPacket.TYPE.RESULT) {
1962					avatar.image = mIqParser.avatarData(result);
1963					if (avatar.image != null) {
1964						if (getFileBackend().save(avatar)) {
1965							if (account.getJid().toBareJid().equals(avatar.owner)) {
1966								if (account.setAvatar(avatar.getFilename())) {
1967									databaseBackend.updateAccount(account);
1968								}
1969								getAvatarService().clear(account);
1970								updateConversationUi();
1971								updateAccountUi();
1972							} else {
1973								Contact contact = account.getRoster()
1974										.getContact(avatar.owner);
1975								contact.setAvatar(avatar);
1976								getAvatarService().clear(contact);
1977								updateConversationUi();
1978								updateRosterUi();
1979							}
1980							if (callback != null) {
1981								callback.success(avatar);
1982							}
1983							Log.d(Config.LOGTAG, account.getJid().toBareJid()
1984									+ ": succesfuly fetched pep avatar for " + avatar.owner);
1985							return;
1986						}
1987					} else {
1988
1989						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
1990					}
1991				} else {
1992					Element error = result.findChild("error");
1993					if (error == null) {
1994						Log.d(Config.LOGTAG, ERROR + "(server error)");
1995					} else {
1996						Log.d(Config.LOGTAG, ERROR + error.toString());
1997					}
1998				}
1999				if (callback != null) {
2000					callback.error(0, null);
2001				}
2002
2003			}
2004		});
2005	}
2006
2007	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2008		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
2009		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2010			@Override
2011			public void onIqPacketReceived(Account account, IqPacket packet) {
2012				synchronized (mInProgressAvatarFetches) {
2013					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2014				}
2015				if (packet.getType() == IqPacket.TYPE.RESULT) {
2016					Element vCard = packet.findChild("vCard", "vcard-temp");
2017					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
2018					String image = photo != null ? photo.findChildContent("BINVAL") : null;
2019					if (image != null) {
2020						avatar.image = image;
2021						if (getFileBackend().save(avatar)) {
2022							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2023									+ ": successfully fetched vCard avatar for " + avatar.owner);
2024							Contact contact = account.getRoster()
2025									.getContact(avatar.owner);
2026							contact.setAvatar(avatar);
2027							getAvatarService().clear(contact);
2028							updateConversationUi();
2029							updateRosterUi();
2030						}
2031					}
2032				}
2033			}
2034		});
2035	}
2036
2037	public void checkForAvatar(Account account, final UiCallback<Avatar> callback) {
2038		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2039		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2040
2041			@Override
2042			public void onIqPacketReceived(Account account, IqPacket packet) {
2043				if (packet.getType() == IqPacket.TYPE.RESULT) {
2044					Element pubsub = packet.findChild("pubsub",
2045							"http://jabber.org/protocol/pubsub");
2046					if (pubsub != null) {
2047						Element items = pubsub.findChild("items");
2048						if (items != null) {
2049							Avatar avatar = Avatar.parseMetadata(items);
2050							if (avatar != null) {
2051								avatar.owner = account.getJid().toBareJid();
2052								if (fileBackend.isAvatarCached(avatar)) {
2053									if (account.setAvatar(avatar.getFilename())) {
2054										databaseBackend.updateAccount(account);
2055									}
2056									getAvatarService().clear(account);
2057									callback.success(avatar);
2058								} else {
2059									fetchAvatarPep(account, avatar, callback);
2060								}
2061								return;
2062							}
2063						}
2064					}
2065				}
2066				callback.error(0, null);
2067			}
2068		});
2069	}
2070
2071	public void deleteContactOnServer(Contact contact) {
2072		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
2073		contact.resetOption(Contact.Options.DIRTY_PUSH);
2074		contact.setOption(Contact.Options.DIRTY_DELETE);
2075		Account account = contact.getAccount();
2076		if (account.getStatus() == Account.State.ONLINE) {
2077			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2078			Element item = iq.query(Xmlns.ROSTER).addChild("item");
2079			item.setAttribute("jid", contact.getJid().toString());
2080			item.setAttribute("subscription", "remove");
2081			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2082		}
2083	}
2084
2085	public void updateConversation(Conversation conversation) {
2086		this.databaseBackend.updateConversation(conversation);
2087	}
2088
2089	public void reconnectAccount(final Account account, final boolean force) {
2090		synchronized (account) {
2091			if (account.getXmppConnection() != null) {
2092				disconnect(account, force);
2093			}
2094			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2095
2096				synchronized (this.mInProgressAvatarFetches) {
2097					for(Iterator<String> iterator = this.mInProgressAvatarFetches.iterator(); iterator.hasNext();) {
2098						final String KEY = iterator.next();
2099						if (KEY.startsWith(account.getJid().toBareJid()+"_")) {
2100							iterator.remove();
2101						}
2102					}
2103				}
2104
2105				if (account.getXmppConnection() == null) {
2106					account.setXmppConnection(createConnection(account));
2107				}
2108				Thread thread = new Thread(account.getXmppConnection());
2109				thread.start();
2110				scheduleWakeUpCall(Config.CONNECT_TIMEOUT, account.getUuid().hashCode());
2111			} else {
2112				account.getRoster().clearPresences();
2113				account.setXmppConnection(null);
2114			}
2115		}
2116	}
2117
2118	public void reconnectAccountInBackground(final Account account) {
2119		new Thread(new Runnable() {
2120			@Override
2121			public void run() {
2122				reconnectAccount(account,false);
2123			}
2124		}).start();
2125	}
2126
2127	public void invite(Conversation conversation, Jid contact) {
2128		Log.d(Config.LOGTAG,conversation.getAccount().getJid().toBareJid()+": inviting "+contact+" to "+conversation.getJid().toBareJid());
2129		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
2130		sendMessagePacket(conversation.getAccount(), packet);
2131	}
2132
2133	public void directInvite(Conversation conversation, Jid jid) {
2134		MessagePacket packet = mMessageGenerator.directInvite(conversation, jid);
2135		sendMessagePacket(conversation.getAccount(),packet);
2136	}
2137
2138	public void resetSendingToWaiting(Account account) {
2139		for (Conversation conversation : getConversations()) {
2140			if (conversation.getAccount() == account) {
2141				conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
2142
2143					@Override
2144					public void onMessageFound(Message message) {
2145						markMessage(message, Message.STATUS_WAITING);
2146					}
2147				});
2148			}
2149		}
2150	}
2151
2152	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status) {
2153		if (uuid == null) {
2154			return null;
2155		}
2156		for (Conversation conversation : getConversations()) {
2157			if (conversation.getJid().toBareJid().equals(recipient) && conversation.getAccount() == account) {
2158				final Message message = conversation.findSentMessageWithUuid(uuid);
2159				if (message != null) {
2160					markMessage(message, status);
2161				}
2162				return message;
2163			}
2164		}
2165		return null;
2166	}
2167
2168	public boolean markMessage(Conversation conversation, String uuid,
2169							   int status) {
2170		if (uuid == null) {
2171			return false;
2172		} else {
2173			Message message = conversation.findSentMessageWithUuid(uuid);
2174			if (message != null) {
2175				markMessage(message, status);
2176				return true;
2177			} else {
2178				return false;
2179			}
2180		}
2181	}
2182
2183	public void markMessage(Message message, int status) {
2184		if (status == Message.STATUS_SEND_FAILED
2185				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
2186				.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
2187			return;
2188		}
2189		message.setStatus(status);
2190		databaseBackend.updateMessage(message);
2191		updateConversationUi();
2192	}
2193
2194	public SharedPreferences getPreferences() {
2195		return PreferenceManager
2196				.getDefaultSharedPreferences(getApplicationContext());
2197	}
2198
2199	public boolean forceEncryption() {
2200		return getPreferences().getBoolean("force_encryption", false);
2201	}
2202
2203	public boolean confirmMessages() {
2204		return getPreferences().getBoolean("confirm_messages", true);
2205	}
2206
2207	public boolean sendChatStates() {
2208		return getPreferences().getBoolean("chat_states", false);
2209	}
2210
2211	public boolean saveEncryptedMessages() {
2212		return !getPreferences().getBoolean("dont_save_encrypted", false);
2213	}
2214
2215	public boolean indicateReceived() {
2216		return getPreferences().getBoolean("indicate_received", false);
2217	}
2218
2219	public int unreadCount() {
2220		int count = 0;
2221		for(Conversation conversation : getConversations()) {
2222			count += conversation.unreadCount();
2223		}
2224		return count;
2225	}
2226
2227	public void updateConversationUi() {
2228		if (mOnConversationUpdate != null) {
2229			mOnConversationUpdate.onConversationUpdate();
2230		}
2231	}
2232
2233	public void updateAccountUi() {
2234		if (mOnAccountUpdate != null) {
2235			mOnAccountUpdate.onAccountUpdate();
2236		}
2237	}
2238
2239	public void updateRosterUi() {
2240		if (mOnRosterUpdate != null) {
2241			mOnRosterUpdate.onRosterUpdate();
2242		}
2243	}
2244
2245	public void updateBlocklistUi(final OnUpdateBlocklist.Status status) {
2246		if (mOnUpdateBlocklist != null) {
2247			mOnUpdateBlocklist.OnUpdateBlocklist(status);
2248		}
2249	}
2250
2251	public void updateMucRosterUi() {
2252		if (mOnMucRosterUpdate != null) {
2253			mOnMucRosterUpdate.onMucRosterUpdate();
2254		}
2255	}
2256
2257	public Account findAccountByJid(final Jid accountJid) {
2258		for (Account account : this.accounts) {
2259			if (account.getJid().toBareJid().equals(accountJid.toBareJid())) {
2260				return account;
2261			}
2262		}
2263		return null;
2264	}
2265
2266	public Conversation findConversationByUuid(String uuid) {
2267		for (Conversation conversation : getConversations()) {
2268			if (conversation.getUuid().equals(uuid)) {
2269				return conversation;
2270			}
2271		}
2272		return null;
2273	}
2274
2275	public void markRead(final Conversation conversation) {
2276		mNotificationService.clear(conversation);
2277		conversation.markRead();
2278		updateUnreadCountBadge();
2279	}
2280
2281	public synchronized void updateUnreadCountBadge() {
2282		int count = unreadCount();
2283		if (unreadCount != count) {
2284			Log.d(Config.LOGTAG, "update unread count to " + count);
2285			if (count > 0) {
2286				ShortcutBadger.with(getApplicationContext()).count(count);
2287			} else {
2288				ShortcutBadger.with(getApplicationContext()).remove();
2289			}
2290			unreadCount = count;
2291		}
2292	}
2293
2294	public void sendReadMarker(final Conversation conversation) {
2295		final Message markable = conversation.getLatestMarkableMessage();
2296		this.markRead(conversation);
2297		if (confirmMessages() && markable != null && markable.getRemoteMsgId() != null) {
2298			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": sending read marker to " + markable.getCounterpart().toString());
2299			Account account = conversation.getAccount();
2300			final Jid to = markable.getCounterpart();
2301			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId());
2302			this.sendMessagePacket(conversation.getAccount(), packet);
2303		}
2304		updateConversationUi();
2305	}
2306
2307	public SecureRandom getRNG() {
2308		return this.mRandom;
2309	}
2310
2311	public MemorizingTrustManager getMemorizingTrustManager() {
2312		return this.mMemorizingTrustManager;
2313	}
2314
2315	public void setMemorizingTrustManager(MemorizingTrustManager trustManager) {
2316		this.mMemorizingTrustManager = trustManager;
2317	}
2318
2319	public void updateMemorizingTrustmanager() {
2320		final MemorizingTrustManager tm;
2321		final boolean dontTrustSystemCAs = getPreferences().getBoolean("dont_trust_system_cas", false);
2322		if (dontTrustSystemCAs) {
2323			 tm = new MemorizingTrustManager(getApplicationContext(), null);
2324		} else {
2325			tm = new MemorizingTrustManager(getApplicationContext());
2326		}
2327		setMemorizingTrustManager(tm);
2328	}
2329
2330	public PowerManager getPowerManager() {
2331		return this.pm;
2332	}
2333
2334	public LruCache<String, Bitmap> getBitmapCache() {
2335		return this.mBitmapCache;
2336	}
2337
2338	public void syncRosterToDisk(final Account account) {
2339		new Thread(new Runnable() {
2340
2341			@Override
2342			public void run() {
2343				databaseBackend.writeRoster(account.getRoster());
2344			}
2345		}).start();
2346
2347	}
2348
2349	public List<String> getKnownHosts() {
2350		final List<String> hosts = new ArrayList<>();
2351		for (final Account account : getAccounts()) {
2352			if (!hosts.contains(account.getServer().toString())) {
2353				hosts.add(account.getServer().toString());
2354			}
2355			for (final Contact contact : account.getRoster().getContacts()) {
2356				if (contact.showInRoster()) {
2357					final String server = contact.getServer().toString();
2358					if (server != null && !hosts.contains(server)) {
2359						hosts.add(server);
2360					}
2361				}
2362			}
2363		}
2364		return hosts;
2365	}
2366
2367	public List<String> getKnownConferenceHosts() {
2368		final ArrayList<String> mucServers = new ArrayList<>();
2369		for (final Account account : accounts) {
2370			if (account.getXmppConnection() != null) {
2371				final String server = account.getXmppConnection().getMucServer();
2372				if (server != null && !mucServers.contains(server)) {
2373					mucServers.add(server);
2374				}
2375			}
2376		}
2377		return mucServers;
2378	}
2379
2380	public void sendMessagePacket(Account account, MessagePacket packet) {
2381		XmppConnection connection = account.getXmppConnection();
2382		if (connection != null) {
2383			connection.sendMessagePacket(packet);
2384		}
2385	}
2386
2387	public void sendPresencePacket(Account account, PresencePacket packet) {
2388		XmppConnection connection = account.getXmppConnection();
2389		if (connection != null) {
2390			connection.sendPresencePacket(packet);
2391		}
2392	}
2393
2394	public void sendIqPacket(final Account account, final IqPacket packet, final OnIqPacketReceived callback) {
2395		final XmppConnection connection = account.getXmppConnection();
2396		if (connection != null) {
2397			connection.sendIqPacket(packet, callback);
2398		}
2399	}
2400
2401	public void sendPresence(final Account account) {
2402		sendPresencePacket(account, mPresenceGenerator.sendPresence(account));
2403	}
2404
2405	public void sendOfflinePresence(final Account account) {
2406		sendPresencePacket(account, mPresenceGenerator.sendOfflinePresence(account));
2407	}
2408
2409	public MessageGenerator getMessageGenerator() {
2410		return this.mMessageGenerator;
2411	}
2412
2413	public PresenceGenerator getPresenceGenerator() {
2414		return this.mPresenceGenerator;
2415	}
2416
2417	public IqGenerator getIqGenerator() {
2418		return this.mIqGenerator;
2419	}
2420
2421	public IqParser getIqParser() {
2422		return this.mIqParser;
2423	}
2424
2425	public JingleConnectionManager getJingleConnectionManager() {
2426		return this.mJingleConnectionManager;
2427	}
2428
2429	public MessageArchiveService getMessageArchiveService() {
2430		return this.mMessageArchiveService;
2431	}
2432
2433	public List<Contact> findContacts(Jid jid) {
2434		ArrayList<Contact> contacts = new ArrayList<>();
2435		for (Account account : getAccounts()) {
2436			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2437				Contact contact = account.getRoster().getContactFromRoster(jid);
2438				if (contact != null) {
2439					contacts.add(contact);
2440				}
2441			}
2442		}
2443		return contacts;
2444	}
2445
2446	public NotificationService getNotificationService() {
2447		return this.mNotificationService;
2448	}
2449
2450	public HttpConnectionManager getHttpConnectionManager() {
2451		return this.mHttpConnectionManager;
2452	}
2453
2454	public void resendFailedMessages(final Message message) {
2455		final Collection<Message> messages = new ArrayList<>();
2456		Message current = message;
2457		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
2458			messages.add(current);
2459			if (current.mergeable(current.next())) {
2460				current = current.next();
2461			} else {
2462				break;
2463			}
2464		}
2465		for (final Message msg : messages) {
2466			markMessage(msg, Message.STATUS_WAITING);
2467			this.resendMessage(msg);
2468		}
2469	}
2470
2471	public void clearConversationHistory(final Conversation conversation) {
2472		conversation.clearMessages();
2473		conversation.setHasMessagesLeftOnServer(false); //avoid messages getting loaded through mam
2474		new Thread(new Runnable() {
2475			@Override
2476			public void run() {
2477				databaseBackend.deleteMessagesInConversation(conversation);
2478			}
2479		}).start();
2480	}
2481
2482	public void sendBlockRequest(final Blockable blockable) {
2483		if (blockable != null && blockable.getBlockedJid() != null) {
2484			final Jid jid = blockable.getBlockedJid();
2485			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetBlockRequest(jid), new OnIqPacketReceived() {
2486
2487				@Override
2488				public void onIqPacketReceived(final Account account, final IqPacket packet) {
2489					if (packet.getType() == IqPacket.TYPE.RESULT) {
2490						account.getBlocklist().add(jid);
2491						updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
2492					}
2493				}
2494			});
2495		}
2496	}
2497
2498	public void sendUnblockRequest(final Blockable blockable) {
2499		if (blockable != null && blockable.getJid() != null) {
2500			final Jid jid = blockable.getBlockedJid();
2501			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetUnblockRequest(jid), new OnIqPacketReceived() {
2502				@Override
2503				public void onIqPacketReceived(final Account account, final IqPacket packet) {
2504					if (packet.getType() == IqPacket.TYPE.RESULT) {
2505						account.getBlocklist().remove(jid);
2506						updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
2507					}
2508				}
2509			});
2510		}
2511	}
2512
2513	public interface OnMoreMessagesLoaded {
2514		public void onMoreMessagesLoaded(int count, Conversation conversation);
2515
2516		public void informUser(int r);
2517	}
2518
2519	public interface OnAccountPasswordChanged {
2520		public void onPasswordChangeSucceeded();
2521
2522		public void onPasswordChangeFailed();
2523	}
2524
2525	public interface OnAffiliationChanged {
2526		public void onAffiliationChangedSuccessful(Jid jid);
2527
2528		public void onAffiliationChangeFailed(Jid jid, int resId);
2529	}
2530
2531	public interface OnRoleChanged {
2532		public void onRoleChangedSuccessful(String nick);
2533
2534		public void onRoleChangeFailed(String nick, int resid);
2535	}
2536
2537	public interface OnConversationUpdate {
2538		public void onConversationUpdate();
2539	}
2540
2541	public interface OnAccountUpdate {
2542		public void onAccountUpdate();
2543	}
2544
2545	public interface OnRosterUpdate {
2546		public void onRosterUpdate();
2547	}
2548
2549	public interface OnMucRosterUpdate {
2550		public void onMucRosterUpdate();
2551	}
2552
2553	public interface OnConferenceOptionsPushed {
2554		public void onPushSucceeded();
2555
2556		public void onPushFailed();
2557	}
2558
2559	public class XmppConnectionBinder extends Binder {
2560		public XmppConnectionService getService() {
2561			return XmppConnectionService.this;
2562		}
2563	}
2564}