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.IntentFilter;
  10import android.content.SharedPreferences;
  11import android.database.ContentObserver;
  12import android.graphics.Bitmap;
  13import android.media.AudioManager;
  14import android.net.ConnectivityManager;
  15import android.net.NetworkInfo;
  16import android.net.Uri;
  17import android.os.Binder;
  18import android.os.Build;
  19import android.os.Bundle;
  20import android.os.FileObserver;
  21import android.os.IBinder;
  22import android.os.Looper;
  23import android.os.PowerManager;
  24import android.os.PowerManager.WakeLock;
  25import android.os.SystemClock;
  26import android.preference.PreferenceManager;
  27import android.provider.ContactsContract;
  28import android.security.KeyChain;
  29import android.util.DisplayMetrics;
  30import android.util.Log;
  31import android.util.LruCache;
  32import android.util.Pair;
  33
  34import net.java.otr4j.OtrException;
  35import net.java.otr4j.session.Session;
  36import net.java.otr4j.session.SessionID;
  37import net.java.otr4j.session.SessionImpl;
  38import net.java.otr4j.session.SessionStatus;
  39
  40import org.openintents.openpgp.IOpenPgpService2;
  41import org.openintents.openpgp.util.OpenPgpApi;
  42import org.openintents.openpgp.util.OpenPgpServiceConnection;
  43
  44import java.math.BigInteger;
  45import java.security.SecureRandom;
  46import java.security.cert.CertificateException;
  47import java.security.cert.X509Certificate;
  48import java.util.ArrayList;
  49import java.util.Arrays;
  50import java.util.Collection;
  51import java.util.Collections;
  52import java.util.Comparator;
  53import java.util.HashMap;
  54import java.util.Hashtable;
  55import java.util.Iterator;
  56import java.util.List;
  57import java.util.Locale;
  58import java.util.Map;
  59import java.util.concurrent.CopyOnWriteArrayList;
  60
  61import de.duenndns.ssl.MemorizingTrustManager;
  62import eu.siacs.conversations.Config;
  63import eu.siacs.conversations.R;
  64import eu.siacs.conversations.crypto.PgpEngine;
  65import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  66import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
  67import eu.siacs.conversations.entities.Account;
  68import eu.siacs.conversations.entities.Blockable;
  69import eu.siacs.conversations.entities.Bookmark;
  70import eu.siacs.conversations.entities.Contact;
  71import eu.siacs.conversations.entities.Conversation;
  72import eu.siacs.conversations.entities.Message;
  73import eu.siacs.conversations.entities.MucOptions;
  74import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  75import eu.siacs.conversations.entities.Presence;
  76import eu.siacs.conversations.entities.Roster;
  77import eu.siacs.conversations.entities.ServiceDiscoveryResult;
  78import eu.siacs.conversations.entities.Transferable;
  79import eu.siacs.conversations.entities.TransferablePlaceholder;
  80import eu.siacs.conversations.generator.IqGenerator;
  81import eu.siacs.conversations.generator.MessageGenerator;
  82import eu.siacs.conversations.generator.PresenceGenerator;
  83import eu.siacs.conversations.http.HttpConnectionManager;
  84import eu.siacs.conversations.parser.IqParser;
  85import eu.siacs.conversations.parser.MessageParser;
  86import eu.siacs.conversations.parser.PresenceParser;
  87import eu.siacs.conversations.persistance.DatabaseBackend;
  88import eu.siacs.conversations.persistance.FileBackend;
  89import eu.siacs.conversations.ui.UiCallback;
  90import eu.siacs.conversations.utils.CryptoHelper;
  91import eu.siacs.conversations.utils.ExceptionHelper;
  92import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
  93import eu.siacs.conversations.utils.PRNGFixes;
  94import eu.siacs.conversations.utils.PhoneHelper;
  95import eu.siacs.conversations.utils.SerialSingleThreadExecutor;
  96import eu.siacs.conversations.utils.Xmlns;
  97import eu.siacs.conversations.xml.Element;
  98import eu.siacs.conversations.xmpp.OnBindListener;
  99import eu.siacs.conversations.xmpp.OnContactStatusChanged;
 100import eu.siacs.conversations.xmpp.OnIqPacketReceived;
 101import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
 102import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
 103import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
 104import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
 105import eu.siacs.conversations.xmpp.OnStatusChanged;
 106import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
 107import eu.siacs.conversations.xmpp.XmppConnection;
 108import eu.siacs.conversations.xmpp.chatstate.ChatState;
 109import eu.siacs.conversations.xmpp.forms.Data;
 110import eu.siacs.conversations.xmpp.forms.Field;
 111import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 112import eu.siacs.conversations.xmpp.jid.Jid;
 113import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 114import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
 115import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
 116import eu.siacs.conversations.xmpp.pep.Avatar;
 117import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 118import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 119import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 120import me.leolin.shortcutbadger.ShortcutBadger;
 121
 122public class XmppConnectionService extends Service implements OnPhoneContactsLoadedListener {
 123
 124	public static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 125	public static final String ACTION_DISABLE_FOREGROUND = "disable_foreground";
 126	public static final String ACTION_TRY_AGAIN = "try_again";
 127	public static final String ACTION_DISABLE_ACCOUNT = "disable_account";
 128	private static final String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
 129	public static final String ACTION_GCM_TOKEN_REFRESH = "gcm_token_refresh";
 130	public static final String ACTION_GCM_MESSAGE_RECEIVED = "gcm_message_received";
 131	private final SerialSingleThreadExecutor mFileAddingExecutor = new SerialSingleThreadExecutor();
 132	private final SerialSingleThreadExecutor mDatabaseExecutor = new SerialSingleThreadExecutor();
 133	private final IBinder mBinder = new XmppConnectionBinder();
 134	private final List<Conversation> conversations = new CopyOnWriteArrayList<>();
 135	private final IqGenerator mIqGenerator = new IqGenerator(this);
 136	private final List<String> mInProgressAvatarFetches = new ArrayList<>();
 137	public DatabaseBackend databaseBackend;
 138	private ContentObserver contactObserver = new ContentObserver(null) {
 139		@Override
 140		public void onChange(boolean selfChange) {
 141			super.onChange(selfChange);
 142			Intent intent = new Intent(getApplicationContext(),
 143					XmppConnectionService.class);
 144			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 145			startService(intent);
 146		}
 147	};
 148	private FileBackend fileBackend = new FileBackend(this);
 149	private MemorizingTrustManager mMemorizingTrustManager;
 150	private NotificationService mNotificationService = new NotificationService(
 151			this);
 152	private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 153	private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 154	private IqParser mIqParser = new IqParser(this);
 155	private OnIqPacketReceived mDefaultIqHandler = new OnIqPacketReceived() {
 156		@Override
 157		public void onIqPacketReceived(Account account, IqPacket packet) {
 158			if (packet.getType() != IqPacket.TYPE.RESULT) {
 159				Element error = packet.findChild("error");
 160				String text = error != null ? error.findChildContent("text") : null;
 161				if (text != null) {
 162					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": received iq error - " + text);
 163				}
 164			}
 165		}
 166	};
 167	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 168	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 169	private List<Account> accounts;
 170	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 171			this);
 172	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 173
 174		@Override
 175		public void onContactStatusChanged(Contact contact, boolean online) {
 176			Conversation conversation = find(getConversations(), contact);
 177			if (conversation != null) {
 178				if (online) {
 179					conversation.endOtrIfNeeded();
 180					if (contact.getPresences().size() == 1) {
 181						sendUnsentMessages(conversation);
 182					}
 183				} else {
 184					if (contact.getPresences().size() >= 1) {
 185						if (conversation.hasValidOtrSession()) {
 186							String otrResource = conversation.getOtrSession().getSessionID().getUserID();
 187							if (!(Arrays.asList(contact.getPresences().asStringArray()).contains(otrResource))) {
 188								conversation.endOtrIfNeeded();
 189							}
 190						}
 191					} else {
 192						conversation.endOtrIfNeeded();
 193					}
 194				}
 195			}
 196		}
 197	};
 198	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 199			this);
 200	private AvatarService mAvatarService = new AvatarService(this);
 201	private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 202	private PushManagementService mPushManagementService = new PushManagementService(this);
 203	private OnConversationUpdate mOnConversationUpdate = null;
 204	private final FileObserver fileObserver = new FileObserver(
 205			FileBackend.getConversationsImageDirectory()) {
 206
 207		@Override
 208		public void onEvent(int event, String path) {
 209			if (event == FileObserver.DELETE) {
 210				markFileDeleted(path.split("\\.")[0]);
 211			}
 212		}
 213	};
 214	private final OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 215
 216		@Override
 217		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 218			mJingleConnectionManager.deliverPacket(account, packet);
 219		}
 220	};
 221	private final OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 222
 223		@Override
 224		public void onMessageAcknowledged(Account account, String uuid) {
 225			for (final Conversation conversation : getConversations()) {
 226				if (conversation.getAccount() == account) {
 227					Message message = conversation.findUnsentMessageWithUuid(uuid);
 228					if (message != null) {
 229						markMessage(message, Message.STATUS_SEND);
 230					}
 231				}
 232			}
 233		}
 234	};
 235	private int convChangedListenerCount = 0;
 236	private OnShowErrorToast mOnShowErrorToast = null;
 237	private int showErrorToastListenerCount = 0;
 238	private int unreadCount = -1;
 239	private OnAccountUpdate mOnAccountUpdate = null;
 240	private OnCaptchaRequested mOnCaptchaRequested = null;
 241	private int accountChangedListenerCount = 0;
 242	private int captchaRequestedListenerCount = 0;
 243	private OnRosterUpdate mOnRosterUpdate = null;
 244	private OnUpdateBlocklist mOnUpdateBlocklist = null;
 245	private int updateBlocklistListenerCount = 0;
 246	private int rosterChangedListenerCount = 0;
 247	private OnMucRosterUpdate mOnMucRosterUpdate = null;
 248	private int mucRosterChangedListenerCount = 0;
 249	private OnKeyStatusUpdated mOnKeyStatusUpdated = null;
 250	private int keyStatusUpdatedListenerCount = 0;
 251	private SecureRandom mRandom;
 252	private LruCache<Pair<String,String>,ServiceDiscoveryResult> discoCache = new LruCache<>(20);
 253	private final OnBindListener mOnBindListener = new OnBindListener() {
 254
 255		@Override
 256		public void onBind(final Account account) {
 257			account.getRoster().clearPresences();
 258			mJingleConnectionManager.cancelInTransmission();
 259			fetchRosterFromServer(account);
 260			fetchBookmarks(account);
 261			sendPresence(account);
 262			if (mPushManagementService.available(account)) {
 263				mPushManagementService.registerPushTokenOnServer(account);
 264			}
 265			mMessageArchiveService.executePendingQueries(account);
 266			connectMultiModeConversations(account);
 267			syncDirtyContacts(account);
 268		}
 269	};
 270	private OnStatusChanged statusListener = new OnStatusChanged() {
 271
 272		@Override
 273		public void onStatusChanged(final Account account) {
 274			XmppConnection connection = account.getXmppConnection();
 275			if (mOnAccountUpdate != null) {
 276				mOnAccountUpdate.onAccountUpdate();
 277			}
 278			if (account.getStatus() == Account.State.ONLINE) {
 279				if (connection != null && connection.getFeatures().csi()) {
 280					if (checkListeners()) {
 281						Log.d(Config.LOGTAG, account.getJid().toBareJid() + " sending csi//inactive");
 282						connection.sendInactive();
 283					} else {
 284						Log.d(Config.LOGTAG, account.getJid().toBareJid() + " sending csi//active");
 285						connection.sendActive();
 286					}
 287				}
 288				List<Conversation> conversations = getConversations();
 289				for (Conversation conversation : conversations) {
 290					if (conversation.getAccount() == account
 291							&& !account.pendingConferenceJoins.contains(conversation)) {
 292						if (!conversation.startOtrIfNeeded()) {
 293							Log.d(Config.LOGTAG,account.getJid().toBareJid()+": couldn't start OTR with "+conversation.getContact().getJid()+" when needed");
 294						}
 295						sendUnsentMessages(conversation);
 296					}
 297				}
 298				for (Conversation conversation : account.pendingConferenceLeaves) {
 299					leaveMuc(conversation);
 300				}
 301				account.pendingConferenceLeaves.clear();
 302				for (Conversation conversation : account.pendingConferenceJoins) {
 303					joinMuc(conversation);
 304				}
 305				account.pendingConferenceJoins.clear();
 306				scheduleWakeUpCall(Config.PING_MAX_INTERVAL, account.getUuid().hashCode());
 307			} else if (account.getStatus() == Account.State.OFFLINE) {
 308				resetSendingToWaiting(account);
 309				final boolean disabled = account.isOptionSet(Account.OPTION_DISABLED);
 310				final boolean pushMode = Config.CLOSE_TCP_WHEN_SWITCHING_TO_BACKGROUND
 311						&& mPushManagementService.available(account)
 312						&& checkListeners();
 313				Log.d(Config.LOGTAG,account.getJid().toBareJid()+": push mode "+Boolean.toString(pushMode));
 314				if (!disabled && !pushMode) {
 315					int timeToReconnect = mRandom.nextInt(20) + 10;
 316					scheduleWakeUpCall(timeToReconnect, account.getUuid().hashCode());
 317				}
 318			} else if (account.getStatus() == Account.State.REGISTRATION_SUCCESSFUL) {
 319				databaseBackend.updateAccount(account);
 320				reconnectAccount(account, true, false);
 321			} else if ((account.getStatus() != Account.State.CONNECTING)
 322					&& (account.getStatus() != Account.State.NO_INTERNET)) {
 323				if (connection != null) {
 324					int next = connection.getTimeToNextAttempt();
 325					Log.d(Config.LOGTAG, account.getJid().toBareJid()
 326							+ ": error connecting account. try again in "
 327							+ next + "s for the "
 328							+ (connection.getAttempt() + 1) + " time");
 329					scheduleWakeUpCall(next, account.getUuid().hashCode());
 330				}
 331			}
 332			getNotificationService().updateErrorNotification();
 333		}
 334	};
 335	private OpenPgpServiceConnection pgpServiceConnection;
 336	private PgpEngine mPgpEngine = null;
 337	private WakeLock wakeLock;
 338	private PowerManager pm;
 339	private LruCache<String, Bitmap> mBitmapCache;
 340	private Thread mPhoneContactMergerThread;
 341	private EventReceiver mEventReceiver = new EventReceiver();
 342
 343	private boolean mRestoredFromDatabase = false;
 344
 345	private static String generateFetchKey(Account account, final Avatar avatar) {
 346		return account.getJid().toBareJid() + "_" + avatar.owner + "_" + avatar.sha1sum;
 347	}
 348
 349	public boolean areMessagesInitialized() {
 350		return this.mRestoredFromDatabase;
 351	}
 352
 353	public PgpEngine getPgpEngine() {
 354		if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 355			if (this.mPgpEngine == null) {
 356				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 357						getApplicationContext(),
 358						pgpServiceConnection.getService()), this);
 359			}
 360			return mPgpEngine;
 361		} else {
 362			return null;
 363		}
 364
 365	}
 366
 367	public FileBackend getFileBackend() {
 368		return this.fileBackend;
 369	}
 370
 371	public AvatarService getAvatarService() {
 372		return this.mAvatarService;
 373	}
 374
 375	public void attachLocationToConversation(final Conversation conversation,
 376											 final Uri uri,
 377											 final UiCallback<Message> callback) {
 378		int encryption = conversation.getNextEncryption();
 379		if (encryption == Message.ENCRYPTION_PGP) {
 380			encryption = Message.ENCRYPTION_DECRYPTED;
 381		}
 382		Message message = new Message(conversation, uri.toString(), encryption);
 383		if (conversation.getNextCounterpart() != null) {
 384			message.setCounterpart(conversation.getNextCounterpart());
 385		}
 386		if (encryption == Message.ENCRYPTION_DECRYPTED) {
 387			getPgpEngine().encrypt(message, callback);
 388		} else {
 389			callback.success(message);
 390		}
 391	}
 392
 393	public void attachFileToConversation(final Conversation conversation,
 394										 final Uri uri,
 395										 final UiCallback<Message> callback) {
 396		final Message message;
 397		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 398			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 399		} else {
 400			message = new Message(conversation, "", conversation.getNextEncryption());
 401		}
 402		message.setCounterpart(conversation.getNextCounterpart());
 403		message.setType(Message.TYPE_FILE);
 404		String path = getFileBackend().getOriginalPath(uri);
 405		if (path != null) {
 406			message.setRelativeFilePath(path);
 407			getFileBackend().updateFileParams(message);
 408			if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 409				getPgpEngine().encrypt(message, callback);
 410			} else {
 411				callback.success(message);
 412			}
 413		} else {
 414			mFileAddingExecutor.execute(new Runnable() {
 415				@Override
 416				public void run() {
 417					try {
 418						getFileBackend().copyFileToPrivateStorage(message, uri);
 419						getFileBackend().updateFileParams(message);
 420						if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 421							getPgpEngine().encrypt(message, callback);
 422						} else {
 423							callback.success(message);
 424						}
 425					} catch (FileBackend.FileCopyException e) {
 426						callback.error(e.getResId(), message);
 427					}
 428				}
 429			});
 430		}
 431	}
 432
 433	public void attachImageToConversation(final Conversation conversation, final Uri uri, final UiCallback<Message> callback) {
 434		final String compressPictures = getCompressPicturesPreference();
 435		if ("never".equals(compressPictures)
 436				|| ("auto".equals(compressPictures) && getFileBackend().useImageAsIs(uri))) {
 437			Log.d(Config.LOGTAG,conversation.getAccount().getJid().toBareJid()+ ": not compressing picture. sending as file");
 438			attachFileToConversation(conversation, uri, callback);
 439			return;
 440		}
 441		final Message message;
 442		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 443			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 444		} else {
 445			message = new Message(conversation, "", conversation.getNextEncryption());
 446		}
 447		message.setCounterpart(conversation.getNextCounterpart());
 448		message.setType(Message.TYPE_IMAGE);
 449		mFileAddingExecutor.execute(new Runnable() {
 450
 451			@Override
 452			public void run() {
 453				try {
 454					getFileBackend().copyImageToPrivateStorage(message, uri);
 455					if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 456						getPgpEngine().encrypt(message, callback);
 457					} else {
 458						callback.success(message);
 459					}
 460				} catch (final FileBackend.FileCopyException e) {
 461					callback.error(e.getResId(), message);
 462				}
 463			}
 464		});
 465	}
 466
 467	public Conversation find(Bookmark bookmark) {
 468		return find(bookmark.getAccount(), bookmark.getJid());
 469	}
 470
 471	public Conversation find(final Account account, final Jid jid) {
 472		return find(getConversations(), account, jid);
 473	}
 474
 475	@Override
 476	public int onStartCommand(Intent intent, int flags, int startId) {
 477		final String action = intent == null ? null : intent.getAction();
 478		boolean interactive = false;
 479		if (action != null) {
 480			switch (action) {
 481				case ConnectivityManager.CONNECTIVITY_ACTION:
 482					if (hasInternetConnection() && Config.RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE) {
 483						resetAllAttemptCounts(true);
 484					}
 485					break;
 486				case ACTION_MERGE_PHONE_CONTACTS:
 487					if (mRestoredFromDatabase) {
 488						loadPhoneContacts();
 489					}
 490					return START_STICKY;
 491				case Intent.ACTION_SHUTDOWN:
 492					logoutAndSave();
 493					return START_NOT_STICKY;
 494				case ACTION_CLEAR_NOTIFICATION:
 495					mNotificationService.clear();
 496					break;
 497				case ACTION_DISABLE_FOREGROUND:
 498					getPreferences().edit().putBoolean("keep_foreground_service", false).commit();
 499					toggleForegroundService();
 500					break;
 501				case ACTION_TRY_AGAIN:
 502					resetAllAttemptCounts(false);
 503					interactive = true;
 504					break;
 505				case ACTION_DISABLE_ACCOUNT:
 506					try {
 507						String jid = intent.getStringExtra("account");
 508						Account account = jid == null ? null : findAccountByJid(Jid.fromString(jid));
 509						if (account != null) {
 510							account.setOption(Account.OPTION_DISABLED, true);
 511							updateAccount(account);
 512						}
 513					} catch (final InvalidJidException ignored) {
 514						break;
 515					}
 516					break;
 517				case AudioManager.RINGER_MODE_CHANGED_ACTION:
 518					if (xaOnSilentMode()) {
 519						refreshAllPresences();
 520					}
 521					break;
 522				case Intent.ACTION_SCREEN_OFF:
 523				case Intent.ACTION_SCREEN_ON:
 524					if (awayWhenScreenOff()) {
 525						refreshAllPresences();
 526					}
 527					break;
 528				case ACTION_GCM_TOKEN_REFRESH:
 529					refreshAllGcmTokens();
 530					break;
 531				case ACTION_GCM_MESSAGE_RECEIVED:
 532					Log.d(Config.LOGTAG,"gcm push message arrived in service. extras="+intent.getExtras());
 533			}
 534		}
 535		this.wakeLock.acquire();
 536
 537		for (Account account : accounts) {
 538			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 539				if (!hasInternetConnection()) {
 540					account.setStatus(Account.State.NO_INTERNET);
 541					if (statusListener != null) {
 542						statusListener.onStatusChanged(account);
 543					}
 544				} else {
 545					if (account.getStatus() == Account.State.NO_INTERNET) {
 546						account.setStatus(Account.State.OFFLINE);
 547						if (statusListener != null) {
 548							statusListener.onStatusChanged(account);
 549						}
 550					}
 551					if (account.getStatus() == Account.State.ONLINE) {
 552						long lastReceived = account.getXmppConnection().getLastPacketReceived();
 553						long lastSent = account.getXmppConnection().getLastPingSent();
 554						long pingInterval = "ui".equals(action) ? Config.PING_MIN_INTERVAL * 1000 : Config.PING_MAX_INTERVAL * 1000;
 555						long msToNextPing = (Math.max(lastReceived, lastSent) + pingInterval) - SystemClock.elapsedRealtime();
 556						long pingTimeoutIn = (lastSent + Config.PING_TIMEOUT * 1000) - SystemClock.elapsedRealtime();
 557						if (lastSent > lastReceived) {
 558							if (pingTimeoutIn < 0) {
 559								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ping timeout");
 560								this.reconnectAccount(account, true, interactive);
 561							} else {
 562								int secs = (int) (pingTimeoutIn / 1000);
 563								this.scheduleWakeUpCall(secs, account.getUuid().hashCode());
 564							}
 565						} else if (msToNextPing <= 0) {
 566							account.getXmppConnection().sendPing();
 567							Log.d(Config.LOGTAG, account.getJid().toBareJid() + " send ping");
 568							this.scheduleWakeUpCall(Config.PING_TIMEOUT, account.getUuid().hashCode());
 569						} else {
 570							this.scheduleWakeUpCall((int) (msToNextPing / 1000), account.getUuid().hashCode());
 571						}
 572					} else if (account.getStatus() == Account.State.OFFLINE) {
 573						reconnectAccount(account, true, interactive);
 574					} else if (account.getStatus() == Account.State.CONNECTING) {
 575						long secondsSinceLastConnect = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000;
 576						long secondsSinceLastDisco = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastDiscoStarted()) / 1000;
 577						long discoTimeout = Config.CONNECT_DISCO_TIMEOUT - secondsSinceLastDisco;
 578						long timeout = Config.CONNECT_TIMEOUT - secondsSinceLastConnect;
 579						if (timeout < 0) {
 580							Log.d(Config.LOGTAG, account.getJid() + ": time out during connect reconnecting");
 581							reconnectAccount(account, true, interactive);
 582						} else if (discoTimeout < 0) {
 583							account.getXmppConnection().sendDiscoTimeout();
 584							scheduleWakeUpCall((int) Math.min(timeout,discoTimeout), account.getUuid().hashCode());
 585						} else {
 586							scheduleWakeUpCall((int) Math.min(timeout,discoTimeout), account.getUuid().hashCode());
 587						}
 588					} else {
 589						if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 590							reconnectAccount(account, true, interactive);
 591						}
 592					}
 593				}
 594				if (mOnAccountUpdate != null) {
 595					mOnAccountUpdate.onAccountUpdate();
 596				}
 597			}
 598		}
 599		if (wakeLock.isHeld()) {
 600			try {
 601				wakeLock.release();
 602			} catch (final RuntimeException ignored) {
 603			}
 604		}
 605		return START_STICKY;
 606	}
 607
 608	private boolean xaOnSilentMode() {
 609		return getPreferences().getBoolean("xa_on_silent_mode", false);
 610	}
 611
 612	private boolean awayWhenScreenOff() {
 613		return getPreferences().getBoolean("away_when_screen_off", false);
 614	}
 615
 616	private String getCompressPicturesPreference() {
 617		return getPreferences().getString("picture_compression", "auto");
 618	}
 619
 620	private Presence.Status getTargetPresence() {
 621		if (xaOnSilentMode() && isPhoneSilenced()) {
 622			return Presence.Status.XA;
 623		} else if (awayWhenScreenOff() && !isInteractive()) {
 624			return Presence.Status.AWAY;
 625		} else {
 626			return Presence.Status.ONLINE;
 627		}
 628	}
 629
 630	@SuppressLint("NewApi")
 631	@SuppressWarnings("deprecation")
 632	public boolean isInteractive() {
 633		final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 634
 635		final boolean isScreenOn;
 636		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
 637			isScreenOn = pm.isScreenOn();
 638		} else {
 639			isScreenOn = pm.isInteractive();
 640		}
 641		return isScreenOn;
 642	}
 643
 644	private boolean isPhoneSilenced() {
 645		AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
 646		return audioManager.getRingerMode() == AudioManager.RINGER_MODE_SILENT;
 647	}
 648
 649	private void resetAllAttemptCounts(boolean reallyAll) {
 650		Log.d(Config.LOGTAG, "resetting all attepmt counts");
 651		for (Account account : accounts) {
 652			if (account.hasErrorStatus() || reallyAll) {
 653				final XmppConnection connection = account.getXmppConnection();
 654				if (connection != null) {
 655					connection.resetAttemptCount();
 656				}
 657			}
 658		}
 659	}
 660
 661	public boolean hasInternetConnection() {
 662		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 663				.getSystemService(Context.CONNECTIVITY_SERVICE);
 664		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 665		return activeNetwork != null && activeNetwork.isConnected();
 666	}
 667
 668	@SuppressLint("TrulyRandom")
 669	@Override
 670	public void onCreate() {
 671		ExceptionHelper.init(getApplicationContext());
 672		PRNGFixes.apply();
 673		this.mRandom = new SecureRandom();
 674		updateMemorizingTrustmanager();
 675		final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
 676		final int cacheSize = maxMemory / 8;
 677		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
 678			@Override
 679			protected int sizeOf(final String key, final Bitmap bitmap) {
 680				return bitmap.getByteCount() / 1024;
 681			}
 682		};
 683
 684		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 685		this.accounts = databaseBackend.getAccounts();
 686
 687		restoreFromDatabase();
 688
 689		getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 690		this.fileObserver.startWatching();
 691
 692		this.pgpServiceConnection = new OpenPgpServiceConnection(getApplicationContext(), "org.sufficientlysecure.keychain", new OpenPgpServiceConnection.OnBound() {
 693			@Override
 694			public void onBound(IOpenPgpService2 service) {
 695				for (Account account : accounts) {
 696					if (account.getPgpDecryptionService() != null) {
 697						account.getPgpDecryptionService().onOpenPgpServiceBound();
 698					}
 699				}
 700			}
 701
 702			@Override
 703			public void onError(Exception e) { }
 704		});
 705		this.pgpServiceConnection.bindToService();
 706
 707		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 708		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "XmppConnectionService");
 709		toggleForegroundService();
 710		updateUnreadCountBadge();
 711		toggleScreenEventReceiver();
 712	}
 713
 714	@Override
 715	public void onTrimMemory(int level) {
 716		super.onTrimMemory(level);
 717		if (level >= TRIM_MEMORY_COMPLETE) {
 718			Log.d(Config.LOGTAG, "clear cache due to low memory");
 719			getBitmapCache().evictAll();
 720		}
 721	}
 722
 723	@Override
 724	public void onDestroy() {
 725		try {
 726			unregisterReceiver(this.mEventReceiver);
 727		} catch (IllegalArgumentException e) {
 728			//ignored
 729		}
 730		super.onDestroy();
 731	}
 732
 733	public void toggleScreenEventReceiver() {
 734		if (awayWhenScreenOff()) {
 735			final IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);
 736			filter.addAction(Intent.ACTION_SCREEN_OFF);
 737			registerReceiver(this.mEventReceiver, filter);
 738		} else {
 739			try {
 740				unregisterReceiver(this.mEventReceiver);
 741			} catch (IllegalArgumentException e) {
 742				//ignored
 743			}
 744		}
 745	}
 746
 747	public void toggleForegroundService() {
 748		if (getPreferences().getBoolean("keep_foreground_service", false)) {
 749			startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, this.mNotificationService.createForegroundNotification());
 750		} else {
 751			stopForeground(true);
 752		}
 753	}
 754
 755	@Override
 756	public void onTaskRemoved(final Intent rootIntent) {
 757		super.onTaskRemoved(rootIntent);
 758		if (!getPreferences().getBoolean("keep_foreground_service", false)) {
 759			this.logoutAndSave();
 760		}
 761	}
 762
 763	private void logoutAndSave() {
 764		for (final Account account : accounts) {
 765			databaseBackend.writeRoster(account.getRoster());
 766			if (account.getXmppConnection() != null) {
 767				new Thread(new Runnable() {
 768					@Override
 769					public void run() {
 770						disconnect(account, false);
 771					}
 772				}).start();
 773				cancelWakeUpCall(account.getUuid().hashCode());
 774			}
 775		}
 776		Log.d(Config.LOGTAG, "good bye");
 777		stopSelf();
 778	}
 779
 780	private void cancelWakeUpCall(int requestCode) {
 781		final AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
 782		final Intent intent = new Intent(this, EventReceiver.class);
 783		intent.setAction("ping");
 784		alarmManager.cancel(PendingIntent.getBroadcast(this, requestCode, intent, 0));
 785	}
 786
 787	public void scheduleWakeUpCall(int seconds, int requestCode) {
 788		final long timeToWake = SystemClock.elapsedRealtime() + (seconds < 0 ? 1 : seconds + 1) * 1000;
 789
 790		Context context = getApplicationContext();
 791		AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
 792
 793		Intent intent = new Intent(context, EventReceiver.class);
 794		intent.setAction("ping");
 795		PendingIntent alarmIntent = PendingIntent.getBroadcast(context, requestCode, intent, 0);
 796		alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, alarmIntent);
 797	}
 798
 799	public XmppConnection createConnection(final Account account) {
 800		final SharedPreferences sharedPref = getPreferences();
 801		account.setResource(sharedPref.getString("resource", "mobile")
 802				.toLowerCase(Locale.getDefault()));
 803		final XmppConnection connection = new XmppConnection(account, this);
 804		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
 805		connection.setOnStatusChangedListener(this.statusListener);
 806		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
 807		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
 808		connection.setOnJinglePacketReceivedListener(this.jingleListener);
 809		connection.setOnBindListener(this.mOnBindListener);
 810		connection.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
 811		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mMessageArchiveService);
 812		AxolotlService axolotlService = account.getAxolotlService();
 813		if (axolotlService != null) {
 814			connection.addOnAdvancedStreamFeaturesAvailableListener(axolotlService);
 815		}
 816		return connection;
 817	}
 818
 819	public void sendChatState(Conversation conversation) {
 820		if (sendChatStates()) {
 821			MessagePacket packet = mMessageGenerator.generateChatState(conversation);
 822			sendMessagePacket(conversation.getAccount(), packet);
 823		}
 824	}
 825
 826	private void sendFileMessage(final Message message, final boolean delay) {
 827		Log.d(Config.LOGTAG, "send file message");
 828		final Account account = message.getConversation().getAccount();
 829		final XmppConnection connection = account.getXmppConnection();
 830		if (connection != null && connection.getFeatures().httpUpload()) {
 831			mHttpConnectionManager.createNewUploadConnection(message, delay);
 832		} else {
 833			mJingleConnectionManager.createNewConnection(message);
 834		}
 835	}
 836
 837	public void sendMessage(final Message message) {
 838		sendMessage(message, false, false);
 839	}
 840
 841	private void sendMessage(final Message message, final boolean resend, final boolean delay) {
 842		final Account account = message.getConversation().getAccount();
 843		final Conversation conversation = message.getConversation();
 844		account.deactivateGracePeriod();
 845		MessagePacket packet = null;
 846		final boolean addToConversation = (conversation.getMode() != Conversation.MODE_MULTI
 847				|| account.getServerIdentity() != XmppConnection.Identity.SLACK)
 848				&& !message.edited();
 849		boolean saveInDb = addToConversation;
 850		message.setStatus(Message.STATUS_WAITING);
 851
 852		if (!resend && message.getEncryption() != Message.ENCRYPTION_OTR) {
 853			message.getConversation().endOtrIfNeeded();
 854			message.getConversation().findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR,
 855					new Conversation.OnMessageFound() {
 856						@Override
 857						public void onMessageFound(Message message) {
 858							markMessage(message, Message.STATUS_SEND_FAILED);
 859						}
 860					});
 861		}
 862
 863		if (account.isOnlineAndConnected()) {
 864			switch (message.getEncryption()) {
 865				case Message.ENCRYPTION_NONE:
 866					if (message.needsUploading()) {
 867						if (account.httpUploadAvailable() || message.fixCounterpart()) {
 868							this.sendFileMessage(message, delay);
 869						} else {
 870							break;
 871						}
 872					} else {
 873						packet = mMessageGenerator.generateChat(message);
 874					}
 875					break;
 876				case Message.ENCRYPTION_PGP:
 877				case Message.ENCRYPTION_DECRYPTED:
 878					if (message.needsUploading()) {
 879						if (account.httpUploadAvailable() || message.fixCounterpart()) {
 880							this.sendFileMessage(message, delay);
 881						} else {
 882							break;
 883						}
 884					} else {
 885						packet = mMessageGenerator.generatePgpChat(message);
 886					}
 887					break;
 888				case Message.ENCRYPTION_OTR:
 889					SessionImpl otrSession = conversation.getOtrSession();
 890					if (otrSession != null && otrSession.getSessionStatus() == SessionStatus.ENCRYPTED) {
 891						try {
 892							message.setCounterpart(Jid.fromSessionID(otrSession.getSessionID()));
 893						} catch (InvalidJidException e) {
 894							break;
 895						}
 896						if (message.needsUploading()) {
 897							mJingleConnectionManager.createNewConnection(message);
 898						} else {
 899							packet = mMessageGenerator.generateOtrChat(message);
 900						}
 901					} else if (otrSession == null) {
 902						if (message.fixCounterpart()) {
 903							conversation.startOtrSession(message.getCounterpart().getResourcepart(), true);
 904						} else {
 905							Log.d(Config.LOGTAG,account.getJid().toBareJid()+": could not fix counterpart for OTR message to contact "+message.getContact().getJid());
 906							break;
 907						}
 908					} else {
 909						Log.d(Config.LOGTAG,account.getJid().toBareJid()+" OTR session with "+message.getContact()+" is in wrong state: "+otrSession.getSessionStatus().toString());
 910					}
 911					break;
 912				case Message.ENCRYPTION_AXOLOTL:
 913					message.setAxolotlFingerprint(account.getAxolotlService().getOwnFingerprint());
 914					if (message.needsUploading()) {
 915						if (account.httpUploadAvailable() || message.fixCounterpart()) {
 916							this.sendFileMessage(message, delay);
 917						} else {
 918							break;
 919						}
 920					} else {
 921						XmppAxolotlMessage axolotlMessage = account.getAxolotlService().fetchAxolotlMessageFromCache(message);
 922						if (axolotlMessage == null) {
 923							account.getAxolotlService().preparePayloadMessage(message, delay);
 924						} else {
 925							packet = mMessageGenerator.generateAxolotlChat(message, axolotlMessage);
 926						}
 927					}
 928					break;
 929
 930			}
 931			if (packet != null) {
 932				if (account.getXmppConnection().getFeatures().sm() || conversation.getMode() == Conversation.MODE_MULTI) {
 933					message.setStatus(Message.STATUS_UNSEND);
 934				} else {
 935					message.setStatus(Message.STATUS_SEND);
 936				}
 937			}
 938		} else {
 939			switch (message.getEncryption()) {
 940				case Message.ENCRYPTION_DECRYPTED:
 941					if (!message.needsUploading()) {
 942						String pgpBody = message.getEncryptedBody();
 943						String decryptedBody = message.getBody();
 944						message.setBody(pgpBody);
 945						message.setEncryption(Message.ENCRYPTION_PGP);
 946						databaseBackend.createMessage(message);
 947						saveInDb = false;
 948						message.setBody(decryptedBody);
 949						message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 950					}
 951					break;
 952				case Message.ENCRYPTION_OTR:
 953					if (!conversation.hasValidOtrSession() && message.getCounterpart() != null) {
 954						Log.d(Config.LOGTAG,account.getJid().toBareJid()+": create otr session without starting for "+message.getContact().getJid());
 955						conversation.startOtrSession(message.getCounterpart().getResourcepart(), false);
 956					}
 957					break;
 958				case Message.ENCRYPTION_AXOLOTL:
 959					message.setAxolotlFingerprint(account.getAxolotlService().getOwnFingerprint());
 960					break;
 961			}
 962		}
 963
 964		if (resend) {
 965			if (packet != null && addToConversation) {
 966				if (account.getXmppConnection().getFeatures().sm() || conversation.getMode() == Conversation.MODE_MULTI) {
 967					markMessage(message, Message.STATUS_UNSEND);
 968				} else {
 969					markMessage(message, Message.STATUS_SEND);
 970				}
 971			}
 972		} else {
 973			if (addToConversation) {
 974				conversation.add(message);
 975			}
 976			if (message.getEncryption() == Message.ENCRYPTION_NONE || saveEncryptedMessages()) {
 977				if (saveInDb) {
 978					databaseBackend.createMessage(message);
 979				} else if (message.edited()) {
 980					databaseBackend.updateMessage(message, message.getEditedId());
 981				}
 982			}
 983			updateConversationUi();
 984		}
 985		if (packet != null) {
 986			if (delay) {
 987				mMessageGenerator.addDelay(packet, message.getTimeSent());
 988			}
 989			if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
 990				if (this.sendChatStates()) {
 991					packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
 992				}
 993			}
 994			sendMessagePacket(account, packet);
 995		}
 996	}
 997
 998	private void sendUnsentMessages(final Conversation conversation) {
 999		conversation.findWaitingMessages(new Conversation.OnMessageFound() {
1000
1001			@Override
1002			public void onMessageFound(Message message) {
1003				resendMessage(message, true);
1004			}
1005		});
1006	}
1007
1008	public void resendMessage(final Message message, final boolean delay) {
1009		sendMessage(message, true, delay);
1010	}
1011
1012	public void fetchRosterFromServer(final Account account) {
1013		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1014		if (!"".equals(account.getRosterVersion())) {
1015			Log.d(Config.LOGTAG, account.getJid().toBareJid()
1016					+ ": fetching roster version " + account.getRosterVersion());
1017		} else {
1018			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching roster");
1019		}
1020		iqPacket.query(Xmlns.ROSTER).setAttribute("ver", account.getRosterVersion());
1021		sendIqPacket(account, iqPacket, mIqParser);
1022	}
1023
1024	public void fetchBookmarks(final Account account) {
1025		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1026		final Element query = iqPacket.query("jabber:iq:private");
1027		query.addChild("storage", "storage:bookmarks");
1028		final OnIqPacketReceived callback = new OnIqPacketReceived() {
1029
1030			@Override
1031			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1032				if (packet.getType() == IqPacket.TYPE.RESULT) {
1033					final Element query = packet.query();
1034					final HashMap<Jid, Bookmark> bookmarks = new HashMap<>();
1035					final Element storage = query.findChild("storage", "storage:bookmarks");
1036					final boolean autojoin = respectAutojoin();
1037					if (storage != null) {
1038						for (final Element item : storage.getChildren()) {
1039							if (item.getName().equals("conference")) {
1040								final Bookmark bookmark = Bookmark.parse(item, account);
1041								Bookmark old = bookmarks.put(bookmark.getJid(), bookmark);
1042								if (old != null && old.getBookmarkName() != null && bookmark.getBookmarkName() == null) {
1043									bookmark.setBookmarkName(old.getBookmarkName());
1044								}
1045								Conversation conversation = find(bookmark);
1046								if (conversation != null) {
1047									conversation.setBookmark(bookmark);
1048								} else if (bookmark.autojoin() && bookmark.getJid() != null && autojoin) {
1049									conversation = findOrCreateConversation(
1050											account, bookmark.getJid(), true);
1051									conversation.setBookmark(bookmark);
1052									joinMuc(conversation);
1053								}
1054							}
1055						}
1056					}
1057					account.setBookmarks(new ArrayList<>(bookmarks.values()));
1058				} else {
1059					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not fetch bookmarks");
1060				}
1061			}
1062		};
1063		sendIqPacket(account, iqPacket, callback);
1064	}
1065
1066	public void pushBookmarks(Account account) {
1067		Log.d(Config.LOGTAG, account.getJid().toBareJid()+": pushing bookmarks");
1068		IqPacket iqPacket = new IqPacket(IqPacket.TYPE.SET);
1069		Element query = iqPacket.query("jabber:iq:private");
1070		Element storage = query.addChild("storage", "storage:bookmarks");
1071		for (Bookmark bookmark : account.getBookmarks()) {
1072			storage.addChild(bookmark);
1073		}
1074		sendIqPacket(account, iqPacket, mDefaultIqHandler);
1075	}
1076
1077	public void onPhoneContactsLoaded(final List<Bundle> phoneContacts) {
1078		if (mPhoneContactMergerThread != null) {
1079			mPhoneContactMergerThread.interrupt();
1080		}
1081		mPhoneContactMergerThread = new Thread(new Runnable() {
1082			@Override
1083			public void run() {
1084				Log.d(Config.LOGTAG, "start merging phone contacts with roster");
1085				for (Account account : accounts) {
1086					List<Contact> withSystemAccounts = account.getRoster().getWithSystemAccounts();
1087					for (Bundle phoneContact : phoneContacts) {
1088						if (Thread.interrupted()) {
1089							Log.d(Config.LOGTAG, "interrupted merging phone contacts");
1090							return;
1091						}
1092						Jid jid;
1093						try {
1094							jid = Jid.fromString(phoneContact.getString("jid"));
1095						} catch (final InvalidJidException e) {
1096							continue;
1097						}
1098						final Contact contact = account.getRoster().getContact(jid);
1099						String systemAccount = phoneContact.getInt("phoneid")
1100								+ "#"
1101								+ phoneContact.getString("lookup");
1102						contact.setSystemAccount(systemAccount);
1103						if (contact.setPhotoUri(phoneContact.getString("photouri"))) {
1104							getAvatarService().clear(contact);
1105						}
1106						contact.setSystemName(phoneContact.getString("displayname"));
1107						withSystemAccounts.remove(contact);
1108					}
1109					for (Contact contact : withSystemAccounts) {
1110						contact.setSystemAccount(null);
1111						contact.setSystemName(null);
1112						if (contact.setPhotoUri(null)) {
1113							getAvatarService().clear(contact);
1114						}
1115					}
1116				}
1117				Log.d(Config.LOGTAG, "finished merging phone contacts");
1118				updateAccountUi();
1119			}
1120		});
1121		mPhoneContactMergerThread.start();
1122	}
1123
1124	private void restoreFromDatabase() {
1125		synchronized (this.conversations) {
1126			final Map<String, Account> accountLookupTable = new Hashtable<>();
1127			for (Account account : this.accounts) {
1128				accountLookupTable.put(account.getUuid(), account);
1129			}
1130			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
1131			for (Conversation conversation : this.conversations) {
1132				Account account = accountLookupTable.get(conversation.getAccountUuid());
1133				conversation.setAccount(account);
1134			}
1135			Runnable runnable = new Runnable() {
1136				@Override
1137				public void run() {
1138					Log.d(Config.LOGTAG, "restoring roster");
1139					for (Account account : accounts) {
1140						databaseBackend.readRoster(account.getRoster());
1141						account.initAccountServices(XmppConnectionService.this); //roster needs to be loaded at this stage
1142					}
1143					getBitmapCache().evictAll();
1144					Looper.prepare();
1145					loadPhoneContacts();
1146					Log.d(Config.LOGTAG, "restoring messages");
1147					for (Conversation conversation : conversations) {
1148						conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1149						checkDeletedFiles(conversation);
1150						conversation.findUnreadMessages(new Conversation.OnMessageFound() {
1151							@Override
1152							public void onMessageFound(Message message) {
1153								mNotificationService.pushFromBacklog(message);
1154							}
1155						});
1156					}
1157					mNotificationService.finishBacklog(false);
1158					mRestoredFromDatabase = true;
1159					Log.d(Config.LOGTAG, "restored all messages");
1160					updateConversationUi();
1161				}
1162			};
1163			mDatabaseExecutor.execute(runnable);
1164		}
1165	}
1166
1167	public void loadPhoneContacts() {
1168		PhoneHelper.loadPhoneContacts(getApplicationContext(),
1169				new CopyOnWriteArrayList<Bundle>(),
1170				XmppConnectionService.this);
1171	}
1172
1173	public List<Conversation> getConversations() {
1174		return this.conversations;
1175	}
1176
1177	private void checkDeletedFiles(Conversation conversation) {
1178		conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1179
1180			@Override
1181			public void onMessageFound(Message message) {
1182				if (!getFileBackend().isFileAvailable(message)) {
1183					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1184					final int s = message.getStatus();
1185					if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1186						markMessage(message, Message.STATUS_SEND_FAILED);
1187					}
1188				}
1189			}
1190		});
1191	}
1192
1193	private void markFileDeleted(String uuid) {
1194		for (Conversation conversation : getConversations()) {
1195			Message message = conversation.findMessageWithFileAndUuid(uuid);
1196			if (message != null) {
1197				if (!getFileBackend().isFileAvailable(message)) {
1198					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1199					final int s = message.getStatus();
1200					if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1201						markMessage(message, Message.STATUS_SEND_FAILED);
1202					} else {
1203						updateConversationUi();
1204					}
1205				}
1206				return;
1207			}
1208		}
1209	}
1210
1211	public void populateWithOrderedConversations(final List<Conversation> list) {
1212		populateWithOrderedConversations(list, true);
1213	}
1214
1215	public void populateWithOrderedConversations(final List<Conversation> list, boolean includeNoFileUpload) {
1216		list.clear();
1217		if (includeNoFileUpload) {
1218			list.addAll(getConversations());
1219		} else {
1220			for (Conversation conversation : getConversations()) {
1221				if (conversation.getMode() == Conversation.MODE_SINGLE
1222						|| conversation.getAccount().httpUploadAvailable()) {
1223					list.add(conversation);
1224				}
1225			}
1226		}
1227		Collections.sort(list, new Comparator<Conversation>() {
1228			@Override
1229			public int compare(Conversation lhs, Conversation rhs) {
1230				Message left = lhs.getLatestMessage();
1231				Message right = rhs.getLatestMessage();
1232				if (left.getTimeSent() > right.getTimeSent()) {
1233					return -1;
1234				} else if (left.getTimeSent() < right.getTimeSent()) {
1235					return 1;
1236				} else {
1237					return 0;
1238				}
1239			}
1240		});
1241	}
1242
1243	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
1244		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation, callback)) {
1245			return;
1246		} else if (timestamp == 0) {
1247			return;
1248		}
1249		Log.d(Config.LOGTAG, "load more messages for " + conversation.getName() + " prior to " + MessageGenerator.getTimestamp(timestamp));
1250		Runnable runnable = new Runnable() {
1251			@Override
1252			public void run() {
1253				final Account account = conversation.getAccount();
1254				List<Message> messages = databaseBackend.getMessages(conversation, 50, timestamp);
1255				if (messages.size() > 0) {
1256					conversation.addAll(0, messages);
1257					checkDeletedFiles(conversation);
1258					callback.onMoreMessagesLoaded(messages.size(), conversation);
1259				} else if (conversation.hasMessagesLeftOnServer()
1260						&& account.isOnlineAndConnected()
1261						&& conversation.getLastClearHistory() == 0) {
1262					if ((conversation.getMode() == Conversation.MODE_SINGLE && account.getXmppConnection().getFeatures().mam())
1263							|| (conversation.getMode() == Conversation.MODE_MULTI && conversation.getMucOptions().mamSupport())) {
1264						MessageArchiveService.Query query = getMessageArchiveService().query(conversation, 0, timestamp);
1265						if (query != null) {
1266							query.setCallback(callback);
1267						}
1268						callback.informUser(R.string.fetching_history_from_server);
1269					}
1270				}
1271			}
1272		};
1273		mDatabaseExecutor.execute(runnable);
1274	}
1275
1276	public List<Account> getAccounts() {
1277		return this.accounts;
1278	}
1279
1280	public Conversation find(final Iterable<Conversation> haystack, final Contact contact) {
1281		for (final Conversation conversation : haystack) {
1282			if (conversation.getContact() == contact) {
1283				return conversation;
1284			}
1285		}
1286		return null;
1287	}
1288
1289	public Conversation find(final Iterable<Conversation> haystack, final Account account, final Jid jid) {
1290		if (jid == null) {
1291			return null;
1292		}
1293		for (final Conversation conversation : haystack) {
1294			if ((account == null || conversation.getAccount() == account)
1295					&& (conversation.getJid().toBareJid().equals(jid.toBareJid()))) {
1296				return conversation;
1297			}
1298		}
1299		return null;
1300	}
1301
1302	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc) {
1303		return this.findOrCreateConversation(account, jid, muc, null);
1304	}
1305
1306	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final MessageArchiveService.Query query) {
1307		synchronized (this.conversations) {
1308			Conversation conversation = find(account, jid);
1309			if (conversation != null) {
1310				return conversation;
1311			}
1312			conversation = databaseBackend.findConversation(account, jid);
1313			if (conversation != null) {
1314				conversation.setStatus(Conversation.STATUS_AVAILABLE);
1315				conversation.setAccount(account);
1316				if (muc) {
1317					conversation.setMode(Conversation.MODE_MULTI);
1318					conversation.setContactJid(jid);
1319				} else {
1320					conversation.setMode(Conversation.MODE_SINGLE);
1321					conversation.setContactJid(jid.toBareJid());
1322				}
1323				conversation.setNextEncryption(-1);
1324				conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1325				this.databaseBackend.updateConversation(conversation);
1326			} else {
1327				String conversationName;
1328				Contact contact = account.getRoster().getContact(jid);
1329				if (contact != null) {
1330					conversationName = contact.getDisplayName();
1331				} else {
1332					conversationName = jid.getLocalpart();
1333				}
1334				if (muc) {
1335					conversation = new Conversation(conversationName, account, jid,
1336							Conversation.MODE_MULTI);
1337				} else {
1338					conversation = new Conversation(conversationName, account, jid.toBareJid(),
1339							Conversation.MODE_SINGLE);
1340				}
1341				this.databaseBackend.createConversation(conversation);
1342			}
1343			if (account.getXmppConnection() != null
1344					&& account.getXmppConnection().getFeatures().mam()
1345					&& !muc) {
1346				if (query == null) {
1347					this.mMessageArchiveService.query(conversation);
1348				} else {
1349					if (query.getConversation() == null) {
1350						this.mMessageArchiveService.query(conversation, query.getStart());
1351					}
1352				}
1353			}
1354			checkDeletedFiles(conversation);
1355			this.conversations.add(conversation);
1356			updateConversationUi();
1357			return conversation;
1358		}
1359	}
1360
1361	public void archiveConversation(Conversation conversation) {
1362		getNotificationService().clear(conversation);
1363		conversation.setStatus(Conversation.STATUS_ARCHIVED);
1364		conversation.setNextEncryption(-1);
1365		synchronized (this.conversations) {
1366			if (conversation.getMode() == Conversation.MODE_MULTI) {
1367				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1368					Bookmark bookmark = conversation.getBookmark();
1369					if (bookmark != null && bookmark.autojoin() && respectAutojoin()) {
1370						bookmark.setAutojoin(false);
1371						pushBookmarks(bookmark.getAccount());
1372					}
1373				}
1374				leaveMuc(conversation);
1375			} else {
1376				conversation.endOtrIfNeeded();
1377				if (conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1378					Log.d(Config.LOGTAG, "Canceling presence request from " + conversation.getJid().toString());
1379					sendPresencePacket(
1380							conversation.getAccount(),
1381							mPresenceGenerator.stopPresenceUpdatesTo(conversation.getContact())
1382					);
1383				}
1384			}
1385			this.databaseBackend.updateConversation(conversation);
1386			this.conversations.remove(conversation);
1387			updateConversationUi();
1388		}
1389	}
1390
1391	public void createAccount(final Account account) {
1392		account.initAccountServices(this);
1393		databaseBackend.createAccount(account);
1394		this.accounts.add(account);
1395		this.reconnectAccountInBackground(account);
1396		updateAccountUi();
1397	}
1398
1399	public void createAccountFromKey(final String alias, final OnAccountCreated callback) {
1400		new Thread(new Runnable() {
1401			@Override
1402			public void run() {
1403				try {
1404					X509Certificate[] chain = KeyChain.getCertificateChain(XmppConnectionService.this, alias);
1405					Pair<Jid, String> info = CryptoHelper.extractJidAndName(chain[0]);
1406					if (findAccountByJid(info.first) == null) {
1407						Account account = new Account(info.first, "");
1408						account.setPrivateKeyAlias(alias);
1409						account.setOption(Account.OPTION_DISABLED, true);
1410						account.setDisplayName(info.second);
1411						createAccount(account);
1412						callback.onAccountCreated(account);
1413						if (Config.X509_VERIFICATION) {
1414							try {
1415								getMemorizingTrustManager().getNonInteractive().checkClientTrusted(chain, "RSA");
1416							} catch (CertificateException e) {
1417								callback.informUser(R.string.certificate_chain_is_not_trusted);
1418							}
1419						}
1420					} else {
1421						callback.informUser(R.string.account_already_exists);
1422					}
1423				} catch (Exception e) {
1424					e.printStackTrace();
1425					callback.informUser(R.string.unable_to_parse_certificate);
1426				}
1427			}
1428		}).start();
1429
1430	}
1431
1432	public void updateKeyInAccount(final Account account, final String alias) {
1433		Log.d(Config.LOGTAG, "update key in account " + alias);
1434		try {
1435			X509Certificate[] chain = KeyChain.getCertificateChain(XmppConnectionService.this, alias);
1436			Pair<Jid, String> info = CryptoHelper.extractJidAndName(chain[0]);
1437			if (account.getJid().toBareJid().equals(info.first)) {
1438				account.setPrivateKeyAlias(alias);
1439				account.setDisplayName(info.second);
1440				databaseBackend.updateAccount(account);
1441				if (Config.X509_VERIFICATION) {
1442					try {
1443						getMemorizingTrustManager().getNonInteractive().checkClientTrusted(chain, "RSA");
1444					} catch (CertificateException e) {
1445						showErrorToastInUi(R.string.certificate_chain_is_not_trusted);
1446					}
1447					account.getAxolotlService().regenerateKeys(true);
1448				}
1449			} else {
1450				showErrorToastInUi(R.string.jid_does_not_match_certificate);
1451			}
1452		} catch (Exception e) {
1453			e.printStackTrace();
1454		}
1455	}
1456
1457	public void updateAccount(final Account account) {
1458		this.statusListener.onStatusChanged(account);
1459		databaseBackend.updateAccount(account);
1460		reconnectAccountInBackground(account);
1461		updateAccountUi();
1462		getNotificationService().updateErrorNotification();
1463	}
1464
1465	public void updateAccountPasswordOnServer(final Account account, final String newPassword, final OnAccountPasswordChanged callback) {
1466		final IqPacket iq = getIqGenerator().generateSetPassword(account, newPassword);
1467		sendIqPacket(account, iq, new OnIqPacketReceived() {
1468			@Override
1469			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1470				if (packet.getType() == IqPacket.TYPE.RESULT) {
1471					account.setPassword(newPassword);
1472					databaseBackend.updateAccount(account);
1473					callback.onPasswordChangeSucceeded();
1474				} else {
1475					callback.onPasswordChangeFailed();
1476				}
1477			}
1478		});
1479	}
1480
1481	public void deleteAccount(final Account account) {
1482		synchronized (this.conversations) {
1483			for (final Conversation conversation : conversations) {
1484				if (conversation.getAccount() == account) {
1485					if (conversation.getMode() == Conversation.MODE_MULTI) {
1486						leaveMuc(conversation);
1487					} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
1488						conversation.endOtrIfNeeded();
1489					}
1490					conversations.remove(conversation);
1491				}
1492			}
1493			if (account.getXmppConnection() != null) {
1494				this.disconnect(account, true);
1495			}
1496			Runnable runnable = new Runnable() {
1497				@Override
1498				public void run() {
1499					databaseBackend.deleteAccount(account);
1500				}
1501			};
1502			mDatabaseExecutor.execute(runnable);
1503			this.accounts.remove(account);
1504			updateAccountUi();
1505			getNotificationService().updateErrorNotification();
1506		}
1507	}
1508
1509	public void setOnConversationListChangedListener(OnConversationUpdate listener) {
1510		synchronized (this) {
1511			if (checkListeners()) {
1512				switchToForeground();
1513			}
1514			this.mOnConversationUpdate = listener;
1515			this.mNotificationService.setIsInForeground(true);
1516			if (this.convChangedListenerCount < 2) {
1517				this.convChangedListenerCount++;
1518			}
1519		}
1520	}
1521
1522	public void removeOnConversationListChangedListener() {
1523		synchronized (this) {
1524			this.convChangedListenerCount--;
1525			if (this.convChangedListenerCount <= 0) {
1526				this.convChangedListenerCount = 0;
1527				this.mOnConversationUpdate = null;
1528				this.mNotificationService.setIsInForeground(false);
1529				if (checkListeners()) {
1530					switchToBackground();
1531				}
1532			}
1533		}
1534	}
1535
1536	public void setOnShowErrorToastListener(OnShowErrorToast onShowErrorToast) {
1537		synchronized (this) {
1538			if (checkListeners()) {
1539				switchToForeground();
1540			}
1541			this.mOnShowErrorToast = onShowErrorToast;
1542			if (this.showErrorToastListenerCount < 2) {
1543				this.showErrorToastListenerCount++;
1544			}
1545		}
1546		this.mOnShowErrorToast = onShowErrorToast;
1547	}
1548
1549	public void removeOnShowErrorToastListener() {
1550		synchronized (this) {
1551			this.showErrorToastListenerCount--;
1552			if (this.showErrorToastListenerCount <= 0) {
1553				this.showErrorToastListenerCount = 0;
1554				this.mOnShowErrorToast = null;
1555				if (checkListeners()) {
1556					switchToBackground();
1557				}
1558			}
1559		}
1560	}
1561
1562	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
1563		synchronized (this) {
1564			if (checkListeners()) {
1565				switchToForeground();
1566			}
1567			this.mOnAccountUpdate = listener;
1568			if (this.accountChangedListenerCount < 2) {
1569				this.accountChangedListenerCount++;
1570			}
1571		}
1572	}
1573
1574	public void removeOnAccountListChangedListener() {
1575		synchronized (this) {
1576			this.accountChangedListenerCount--;
1577			if (this.accountChangedListenerCount <= 0) {
1578				this.mOnAccountUpdate = null;
1579				this.accountChangedListenerCount = 0;
1580				if (checkListeners()) {
1581					switchToBackground();
1582				}
1583			}
1584		}
1585	}
1586
1587	public void setOnCaptchaRequestedListener(OnCaptchaRequested listener) {
1588		synchronized (this) {
1589			if (checkListeners()) {
1590				switchToForeground();
1591			}
1592			this.mOnCaptchaRequested = listener;
1593			if (this.captchaRequestedListenerCount < 2) {
1594				this.captchaRequestedListenerCount++;
1595			}
1596		}
1597	}
1598
1599	public void removeOnCaptchaRequestedListener() {
1600		synchronized (this) {
1601			this.captchaRequestedListenerCount--;
1602			if (this.captchaRequestedListenerCount <= 0) {
1603				this.mOnCaptchaRequested = null;
1604				this.captchaRequestedListenerCount = 0;
1605				if (checkListeners()) {
1606					switchToBackground();
1607				}
1608			}
1609		}
1610	}
1611
1612	public void setOnRosterUpdateListener(final OnRosterUpdate listener) {
1613		synchronized (this) {
1614			if (checkListeners()) {
1615				switchToForeground();
1616			}
1617			this.mOnRosterUpdate = listener;
1618			if (this.rosterChangedListenerCount < 2) {
1619				this.rosterChangedListenerCount++;
1620			}
1621		}
1622	}
1623
1624	public void removeOnRosterUpdateListener() {
1625		synchronized (this) {
1626			this.rosterChangedListenerCount--;
1627			if (this.rosterChangedListenerCount <= 0) {
1628				this.rosterChangedListenerCount = 0;
1629				this.mOnRosterUpdate = null;
1630				if (checkListeners()) {
1631					switchToBackground();
1632				}
1633			}
1634		}
1635	}
1636
1637	public void setOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
1638		synchronized (this) {
1639			if (checkListeners()) {
1640				switchToForeground();
1641			}
1642			this.mOnUpdateBlocklist = listener;
1643			if (this.updateBlocklistListenerCount < 2) {
1644				this.updateBlocklistListenerCount++;
1645			}
1646		}
1647	}
1648
1649	public void removeOnUpdateBlocklistListener() {
1650		synchronized (this) {
1651			this.updateBlocklistListenerCount--;
1652			if (this.updateBlocklistListenerCount <= 0) {
1653				this.updateBlocklistListenerCount = 0;
1654				this.mOnUpdateBlocklist = null;
1655				if (checkListeners()) {
1656					switchToBackground();
1657				}
1658			}
1659		}
1660	}
1661
1662	public void setOnKeyStatusUpdatedListener(final OnKeyStatusUpdated listener) {
1663		synchronized (this) {
1664			if (checkListeners()) {
1665				switchToForeground();
1666			}
1667			this.mOnKeyStatusUpdated = listener;
1668			if (this.keyStatusUpdatedListenerCount < 2) {
1669				this.keyStatusUpdatedListenerCount++;
1670			}
1671		}
1672	}
1673
1674	public void removeOnNewKeysAvailableListener() {
1675		synchronized (this) {
1676			this.keyStatusUpdatedListenerCount--;
1677			if (this.keyStatusUpdatedListenerCount <= 0) {
1678				this.keyStatusUpdatedListenerCount = 0;
1679				this.mOnKeyStatusUpdated = null;
1680				if (checkListeners()) {
1681					switchToBackground();
1682				}
1683			}
1684		}
1685	}
1686
1687	public void setOnMucRosterUpdateListener(OnMucRosterUpdate listener) {
1688		synchronized (this) {
1689			if (checkListeners()) {
1690				switchToForeground();
1691			}
1692			this.mOnMucRosterUpdate = listener;
1693			if (this.mucRosterChangedListenerCount < 2) {
1694				this.mucRosterChangedListenerCount++;
1695			}
1696		}
1697	}
1698
1699	public void removeOnMucRosterUpdateListener() {
1700		synchronized (this) {
1701			this.mucRosterChangedListenerCount--;
1702			if (this.mucRosterChangedListenerCount <= 0) {
1703				this.mucRosterChangedListenerCount = 0;
1704				this.mOnMucRosterUpdate = null;
1705				if (checkListeners()) {
1706					switchToBackground();
1707				}
1708			}
1709		}
1710	}
1711
1712	private boolean checkListeners() {
1713		return (this.mOnAccountUpdate == null
1714				&& this.mOnConversationUpdate == null
1715				&& this.mOnRosterUpdate == null
1716				&& this.mOnCaptchaRequested == null
1717				&& this.mOnUpdateBlocklist == null
1718				&& this.mOnShowErrorToast == null
1719				&& this.mOnKeyStatusUpdated == null);
1720	}
1721
1722	private void switchToForeground() {
1723		for (Conversation conversation : getConversations()) {
1724			conversation.setIncomingChatState(ChatState.ACTIVE);
1725		}
1726		for (Account account : getAccounts()) {
1727			if (account.getStatus() == Account.State.ONLINE) {
1728				XmppConnection connection = account.getXmppConnection();
1729				if (connection != null && connection.getFeatures().csi()) {
1730					connection.sendActive();
1731				}
1732			}
1733		}
1734		Log.d(Config.LOGTAG, "app switched into foreground");
1735	}
1736
1737	private void switchToBackground() {
1738		for (Account account : getAccounts()) {
1739			if (account.getStatus() == Account.State.ONLINE) {
1740				XmppConnection connection = account.getXmppConnection();
1741				if (connection != null) {
1742					if (connection.getFeatures().csi()) {
1743						connection.sendInactive();
1744					}
1745					if (Config.CLOSE_TCP_WHEN_SWITCHING_TO_BACKGROUND && mPushManagementService.available(account)) {
1746						connection.waitForPush();
1747						cancelWakeUpCall(account.getUuid().hashCode());
1748					}
1749				}
1750			}
1751		}
1752		this.mNotificationService.setIsInForeground(false);
1753		Log.d(Config.LOGTAG, "app switched into background");
1754	}
1755
1756	private void connectMultiModeConversations(Account account) {
1757		List<Conversation> conversations = getConversations();
1758		for (Conversation conversation : conversations) {
1759			if (conversation.getMode() == Conversation.MODE_MULTI && conversation.getAccount() == account) {
1760				joinMuc(conversation);
1761			}
1762		}
1763	}
1764
1765	public void joinMuc(Conversation conversation) {
1766		joinMuc(conversation, null);
1767	}
1768
1769	private void joinMuc(Conversation conversation, final OnConferenceJoined onConferenceJoined) {
1770		Account account = conversation.getAccount();
1771		account.pendingConferenceJoins.remove(conversation);
1772		account.pendingConferenceLeaves.remove(conversation);
1773		if (account.getStatus() == Account.State.ONLINE) {
1774			conversation.resetMucOptions();
1775			conversation.setHasMessagesLeftOnServer(false);
1776			fetchConferenceConfiguration(conversation, new OnConferenceConfigurationFetched() {
1777
1778				private void join(Conversation conversation) {
1779					Account account = conversation.getAccount();
1780					final String nick = conversation.getMucOptions().getProposedNick();
1781					final Jid joinJid = conversation.getMucOptions().createJoinJid(nick);
1782					Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": joining conversation " + joinJid.toString());
1783					PresencePacket packet = new PresencePacket();
1784					packet.setFrom(conversation.getAccount().getJid());
1785					packet.setTo(joinJid);
1786					Element x = packet.addChild("x", "http://jabber.org/protocol/muc");
1787					if (conversation.getMucOptions().getPassword() != null) {
1788						x.addChild("password").setContent(conversation.getMucOptions().getPassword());
1789					}
1790
1791					if (conversation.getMucOptions().mamSupport()) {
1792						// Use MAM instead of the limited muc history to get history
1793						x.addChild("history").setAttribute("maxchars", "0");
1794					} else {
1795						// Fallback to muc history
1796						x.addChild("history").setAttribute("since", PresenceGenerator.getTimestamp(conversation.getLastMessageTransmitted()));
1797					}
1798					String sig = account.getPgpSignature();
1799					if (sig != null) {
1800						packet.addChild("x", "jabber:x:signed").setContent(sig);
1801					}
1802					sendPresencePacket(account, packet);
1803					if (onConferenceJoined != null) {
1804						onConferenceJoined.onConferenceJoined(conversation);
1805					}
1806					if (!joinJid.equals(conversation.getJid())) {
1807						conversation.setContactJid(joinJid);
1808						databaseBackend.updateConversation(conversation);
1809					}
1810					if (conversation.getMucOptions().mamSupport()) {
1811						getMessageArchiveService().catchupMUC(conversation);
1812					}
1813					sendUnsentMessages(conversation);
1814				}
1815
1816				@Override
1817				public void onConferenceConfigurationFetched(Conversation conversation) {
1818					join(conversation);
1819				}
1820
1821				@Override
1822				public void onFetchFailed(final Conversation conversation, Element error) {
1823					join(conversation);
1824					fetchConferenceConfiguration(conversation);
1825				}
1826			});
1827			updateConversationUi();
1828		} else {
1829			account.pendingConferenceJoins.add(conversation);
1830			conversation.resetMucOptions();
1831			conversation.setHasMessagesLeftOnServer(false);
1832			updateConversationUi();
1833		}
1834	}
1835
1836	public void providePasswordForMuc(Conversation conversation, String password) {
1837		if (conversation.getMode() == Conversation.MODE_MULTI) {
1838			conversation.getMucOptions().setPassword(password);
1839			if (conversation.getBookmark() != null) {
1840				if (respectAutojoin()) {
1841					conversation.getBookmark().setAutojoin(true);
1842				}
1843				pushBookmarks(conversation.getAccount());
1844			}
1845			databaseBackend.updateConversation(conversation);
1846			joinMuc(conversation);
1847		}
1848	}
1849
1850	public void renameInMuc(final Conversation conversation, final String nick, final UiCallback<Conversation> callback) {
1851		final MucOptions options = conversation.getMucOptions();
1852		final Jid joinJid = options.createJoinJid(nick);
1853		if (options.online()) {
1854			Account account = conversation.getAccount();
1855			options.setOnRenameListener(new OnRenameListener() {
1856
1857				@Override
1858				public void onSuccess() {
1859					conversation.setContactJid(joinJid);
1860					databaseBackend.updateConversation(conversation);
1861					Bookmark bookmark = conversation.getBookmark();
1862					if (bookmark != null) {
1863						bookmark.setNick(nick);
1864						pushBookmarks(bookmark.getAccount());
1865					}
1866					callback.success(conversation);
1867				}
1868
1869				@Override
1870				public void onFailure() {
1871					callback.error(R.string.nick_in_use, conversation);
1872				}
1873			});
1874
1875			PresencePacket packet = new PresencePacket();
1876			packet.setTo(joinJid);
1877			packet.setFrom(conversation.getAccount().getJid());
1878
1879			String sig = account.getPgpSignature();
1880			if (sig != null) {
1881				packet.addChild("status").setContent("online");
1882				packet.addChild("x", "jabber:x:signed").setContent(sig);
1883			}
1884			sendPresencePacket(account, packet);
1885		} else {
1886			conversation.setContactJid(joinJid);
1887			databaseBackend.updateConversation(conversation);
1888			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1889				Bookmark bookmark = conversation.getBookmark();
1890				if (bookmark != null) {
1891					bookmark.setNick(nick);
1892					pushBookmarks(bookmark.getAccount());
1893				}
1894				joinMuc(conversation);
1895			}
1896		}
1897	}
1898
1899	public void leaveMuc(Conversation conversation) {
1900		leaveMuc(conversation, false);
1901	}
1902
1903	private void leaveMuc(Conversation conversation, boolean now) {
1904		Account account = conversation.getAccount();
1905		account.pendingConferenceJoins.remove(conversation);
1906		account.pendingConferenceLeaves.remove(conversation);
1907		if (account.getStatus() == Account.State.ONLINE || now) {
1908			PresencePacket packet = new PresencePacket();
1909			packet.setTo(conversation.getJid());
1910			packet.setFrom(conversation.getAccount().getJid());
1911			packet.setAttribute("type", "unavailable");
1912			sendPresencePacket(conversation.getAccount(), packet);
1913			conversation.getMucOptions().setOffline();
1914			conversation.deregisterWithBookmark();
1915			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid()
1916					+ ": leaving muc " + conversation.getJid());
1917		} else {
1918			account.pendingConferenceLeaves.add(conversation);
1919		}
1920	}
1921
1922	private String findConferenceServer(final Account account) {
1923		String server;
1924		if (account.getXmppConnection() != null) {
1925			server = account.getXmppConnection().getMucServer();
1926			if (server != null) {
1927				return server;
1928			}
1929		}
1930		for (Account other : getAccounts()) {
1931			if (other != account && other.getXmppConnection() != null) {
1932				server = other.getXmppConnection().getMucServer();
1933				if (server != null) {
1934					return server;
1935				}
1936			}
1937		}
1938		return null;
1939	}
1940
1941	public void createAdhocConference(final Account account, final Iterable<Jid> jids, final UiCallback<Conversation> callback) {
1942		Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": creating adhoc conference with " + jids.toString());
1943		if (account.getStatus() == Account.State.ONLINE) {
1944			try {
1945				String server = findConferenceServer(account);
1946				if (server == null) {
1947					if (callback != null) {
1948						callback.error(R.string.no_conference_server_found, null);
1949					}
1950					return;
1951				}
1952				String name = new BigInteger(75, getRNG()).toString(32);
1953				Jid jid = Jid.fromParts(name, server, null);
1954				final Conversation conversation = findOrCreateConversation(account, jid, true);
1955				joinMuc(conversation, new OnConferenceJoined() {
1956					@Override
1957					public void onConferenceJoined(final Conversation conversation) {
1958						Bundle options = new Bundle();
1959						options.putString("muc#roomconfig_persistentroom", "1");
1960						options.putString("muc#roomconfig_membersonly", "1");
1961						options.putString("muc#roomconfig_publicroom", "0");
1962						options.putString("muc#roomconfig_whois", "anyone");
1963						pushConferenceConfiguration(conversation, options, new OnConferenceOptionsPushed() {
1964							@Override
1965							public void onPushSucceeded() {
1966								for (Jid invite : jids) {
1967									invite(conversation, invite);
1968								}
1969								if (account.countPresences() > 1) {
1970									directInvite(conversation, account.getJid().toBareJid());
1971								}
1972								if (callback != null) {
1973									callback.success(conversation);
1974								}
1975							}
1976
1977							@Override
1978							public void onPushFailed() {
1979								if (callback != null) {
1980									callback.error(R.string.conference_creation_failed, conversation);
1981								}
1982							}
1983						});
1984					}
1985				});
1986			} catch (InvalidJidException e) {
1987				if (callback != null) {
1988					callback.error(R.string.conference_creation_failed, null);
1989				}
1990			}
1991		} else {
1992			if (callback != null) {
1993				callback.error(R.string.not_connected_try_again, null);
1994			}
1995		}
1996	}
1997
1998	public void fetchConferenceConfiguration(final Conversation conversation) {
1999		fetchConferenceConfiguration(conversation, null);
2000	}
2001
2002	public void fetchConferenceConfiguration(final Conversation conversation, final OnConferenceConfigurationFetched callback) {
2003		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2004		request.setTo(conversation.getJid().toBareJid());
2005		request.query("http://jabber.org/protocol/disco#info");
2006		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2007			@Override
2008			public void onIqPacketReceived(Account account, IqPacket packet) {
2009				if (packet.getType() == IqPacket.TYPE.RESULT) {
2010					ArrayList<String> features = new ArrayList<>();
2011					Element query = packet.query();
2012					for (Element child : query.getChildren()) {
2013						if (child != null && child.getName().equals("feature")) {
2014							String var = child.getAttribute("var");
2015							if (var != null) {
2016								features.add(var);
2017							}
2018						}
2019					}
2020					Element form = query.findChild("x", "jabber:x:data");
2021					if (form != null) {
2022						conversation.getMucOptions().updateFormData(Data.parse(form));
2023					}
2024					conversation.getMucOptions().updateFeatures(features);
2025					if (callback != null) {
2026						callback.onConferenceConfigurationFetched(conversation);
2027					}
2028					updateConversationUi();
2029				} else if (packet.getType() == IqPacket.TYPE.ERROR) {
2030					if (callback != null) {
2031						callback.onFetchFailed(conversation, packet.getError());
2032					}
2033				}
2034			}
2035		});
2036	}
2037
2038	public void pushConferenceConfiguration(final Conversation conversation, final Bundle options, final OnConferenceOptionsPushed callback) {
2039		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2040		request.setTo(conversation.getJid().toBareJid());
2041		request.query("http://jabber.org/protocol/muc#owner");
2042		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2043			@Override
2044			public void onIqPacketReceived(Account account, IqPacket packet) {
2045				if (packet.getType() == IqPacket.TYPE.RESULT) {
2046					Data data = Data.parse(packet.query().findChild("x", "jabber:x:data"));
2047					for (Field field : data.getFields()) {
2048						if (options.containsKey(field.getFieldName())) {
2049							field.setValue(options.getString(field.getFieldName()));
2050						}
2051					}
2052					data.submit();
2053					IqPacket set = new IqPacket(IqPacket.TYPE.SET);
2054					set.setTo(conversation.getJid().toBareJid());
2055					set.query("http://jabber.org/protocol/muc#owner").addChild(data);
2056					sendIqPacket(account, set, new OnIqPacketReceived() {
2057						@Override
2058						public void onIqPacketReceived(Account account, IqPacket packet) {
2059							if (callback != null) {
2060								if (packet.getType() == IqPacket.TYPE.RESULT) {
2061									callback.onPushSucceeded();
2062								} else {
2063									callback.onPushFailed();
2064								}
2065							}
2066						}
2067					});
2068				} else {
2069					if (callback != null) {
2070						callback.onPushFailed();
2071					}
2072				}
2073			}
2074		});
2075	}
2076
2077	public void pushSubjectToConference(final Conversation conference, final String subject) {
2078		MessagePacket packet = this.getMessageGenerator().conferenceSubject(conference, subject);
2079		this.sendMessagePacket(conference.getAccount(), packet);
2080		final MucOptions mucOptions = conference.getMucOptions();
2081		final MucOptions.User self = mucOptions.getSelf();
2082		if (!mucOptions.persistent() && self.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
2083			Bundle options = new Bundle();
2084			options.putString("muc#roomconfig_persistentroom", "1");
2085			this.pushConferenceConfiguration(conference, options, null);
2086		}
2087	}
2088
2089	public void changeAffiliationInConference(final Conversation conference, Jid user, MucOptions.Affiliation affiliation, final OnAffiliationChanged callback) {
2090		final Jid jid = user.toBareJid();
2091		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jid, affiliation.toString());
2092		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2093			@Override
2094			public void onIqPacketReceived(Account account, IqPacket packet) {
2095				if (packet.getType() == IqPacket.TYPE.RESULT) {
2096					callback.onAffiliationChangedSuccessful(jid);
2097				} else {
2098					callback.onAffiliationChangeFailed(jid, R.string.could_not_change_affiliation);
2099				}
2100			}
2101		});
2102	}
2103
2104	public void changeAffiliationsInConference(final Conversation conference, MucOptions.Affiliation before, MucOptions.Affiliation after) {
2105		List<Jid> jids = new ArrayList<>();
2106		for (MucOptions.User user : conference.getMucOptions().getUsers()) {
2107			if (user.getAffiliation() == before && user.getJid() != null) {
2108				jids.add(user.getJid());
2109			}
2110		}
2111		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
2112		sendIqPacket(conference.getAccount(), request, mDefaultIqHandler);
2113	}
2114
2115	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role, final OnRoleChanged callback) {
2116		IqPacket request = this.mIqGenerator.changeRole(conference, nick, role.toString());
2117		Log.d(Config.LOGTAG, request.toString());
2118		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2119			@Override
2120			public void onIqPacketReceived(Account account, IqPacket packet) {
2121				Log.d(Config.LOGTAG, packet.toString());
2122				if (packet.getType() == IqPacket.TYPE.RESULT) {
2123					callback.onRoleChangedSuccessful(nick);
2124				} else {
2125					callback.onRoleChangeFailed(nick, R.string.could_not_change_role);
2126				}
2127			}
2128		});
2129	}
2130
2131	private void disconnect(Account account, boolean force) {
2132		if ((account.getStatus() == Account.State.ONLINE)
2133				|| (account.getStatus() == Account.State.DISABLED)) {
2134			if (!force) {
2135				List<Conversation> conversations = getConversations();
2136				for (Conversation conversation : conversations) {
2137					if (conversation.getAccount() == account) {
2138						if (conversation.getMode() == Conversation.MODE_MULTI) {
2139							leaveMuc(conversation, true);
2140						} else {
2141							if (conversation.endOtrIfNeeded()) {
2142								Log.d(Config.LOGTAG, account.getJid().toBareJid()
2143										+ ": ended otr session with "
2144										+ conversation.getJid());
2145							}
2146						}
2147					}
2148				}
2149				sendOfflinePresence(account);
2150			}
2151			account.getXmppConnection().disconnect(force);
2152		}
2153	}
2154
2155	@Override
2156	public IBinder onBind(Intent intent) {
2157		return mBinder;
2158	}
2159
2160	public void updateMessage(Message message) {
2161		databaseBackend.updateMessage(message);
2162		updateConversationUi();
2163	}
2164
2165	public void updateMessage(Message message, String uuid) {
2166		databaseBackend.updateMessage(message, uuid);
2167		updateConversationUi();
2168	}
2169
2170	protected void syncDirtyContacts(Account account) {
2171		for (Contact contact : account.getRoster().getContacts()) {
2172			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
2173				pushContactToServer(contact);
2174			}
2175			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
2176				deleteContactOnServer(contact);
2177			}
2178		}
2179	}
2180
2181	public void createContact(Contact contact) {
2182		boolean autoGrant = getPreferences().getBoolean("grant_new_contacts", true);
2183		if (autoGrant) {
2184			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
2185			contact.setOption(Contact.Options.ASKING);
2186		}
2187		pushContactToServer(contact);
2188	}
2189
2190	public void onOtrSessionEstablished(Conversation conversation) {
2191		final Account account = conversation.getAccount();
2192		final Session otrSession = conversation.getOtrSession();
2193		Log.d(Config.LOGTAG,
2194				account.getJid().toBareJid() + " otr session established with "
2195						+ conversation.getJid() + "/"
2196						+ otrSession.getSessionID().getUserID());
2197		conversation.findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR, new Conversation.OnMessageFound() {
2198
2199			@Override
2200			public void onMessageFound(Message message) {
2201				SessionID id = otrSession.getSessionID();
2202				try {
2203					message.setCounterpart(Jid.fromString(id.getAccountID() + "/" + id.getUserID()));
2204				} catch (InvalidJidException e) {
2205					return;
2206				}
2207				if (message.needsUploading()) {
2208					mJingleConnectionManager.createNewConnection(message);
2209				} else {
2210					MessagePacket outPacket = mMessageGenerator.generateOtrChat(message);
2211					if (outPacket != null) {
2212						mMessageGenerator.addDelay(outPacket, message.getTimeSent());
2213						message.setStatus(Message.STATUS_SEND);
2214						databaseBackend.updateMessage(message);
2215						sendMessagePacket(account, outPacket);
2216					}
2217				}
2218				updateConversationUi();
2219			}
2220		});
2221	}
2222
2223	public boolean renewSymmetricKey(Conversation conversation) {
2224		Account account = conversation.getAccount();
2225		byte[] symmetricKey = new byte[32];
2226		this.mRandom.nextBytes(symmetricKey);
2227		Session otrSession = conversation.getOtrSession();
2228		if (otrSession != null) {
2229			MessagePacket packet = new MessagePacket();
2230			packet.setType(MessagePacket.TYPE_CHAT);
2231			packet.setFrom(account.getJid());
2232			MessageGenerator.addMessageHints(packet);
2233			packet.setAttribute("to", otrSession.getSessionID().getAccountID() + "/"
2234					+ otrSession.getSessionID().getUserID());
2235			try {
2236				packet.setBody(otrSession
2237						.transformSending(CryptoHelper.FILETRANSFER
2238								+ CryptoHelper.bytesToHex(symmetricKey))[0]);
2239				sendMessagePacket(account, packet);
2240				conversation.setSymmetricKey(symmetricKey);
2241				return true;
2242			} catch (OtrException e) {
2243				return false;
2244			}
2245		}
2246		return false;
2247	}
2248
2249	public void pushContactToServer(final Contact contact) {
2250		contact.resetOption(Contact.Options.DIRTY_DELETE);
2251		contact.setOption(Contact.Options.DIRTY_PUSH);
2252		final Account account = contact.getAccount();
2253		if (account.getStatus() == Account.State.ONLINE) {
2254			final boolean ask = contact.getOption(Contact.Options.ASKING);
2255			final boolean sendUpdates = contact
2256					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
2257					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
2258			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2259			iq.query(Xmlns.ROSTER).addChild(contact.asElement());
2260			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2261			if (sendUpdates) {
2262				sendPresencePacket(account,
2263						mPresenceGenerator.sendPresenceUpdatesTo(contact));
2264			}
2265			if (ask) {
2266				sendPresencePacket(account,
2267						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
2268			}
2269		}
2270	}
2271
2272	public void publishAvatar(final Account account,
2273							  final Uri image,
2274							  final UiCallback<Avatar> callback) {
2275		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
2276		final int size = Config.AVATAR_SIZE;
2277		final Avatar avatar = getFileBackend().getPepAvatar(image, size, format);
2278		if (avatar != null) {
2279			avatar.height = size;
2280			avatar.width = size;
2281			if (format.equals(Bitmap.CompressFormat.WEBP)) {
2282				avatar.type = "image/webp";
2283			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
2284				avatar.type = "image/jpeg";
2285			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
2286				avatar.type = "image/png";
2287			}
2288			if (!getFileBackend().save(avatar)) {
2289				callback.error(R.string.error_saving_avatar, avatar);
2290				return;
2291			}
2292			final IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
2293			this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2294
2295				@Override
2296				public void onIqPacketReceived(Account account, IqPacket result) {
2297					if (result.getType() == IqPacket.TYPE.RESULT) {
2298						final IqPacket packet = XmppConnectionService.this.mIqGenerator
2299								.publishAvatarMetadata(avatar);
2300						sendIqPacket(account, packet, new OnIqPacketReceived() {
2301							@Override
2302							public void onIqPacketReceived(Account account, IqPacket result) {
2303								if (result.getType() == IqPacket.TYPE.RESULT) {
2304									if (account.setAvatar(avatar.getFilename())) {
2305										getAvatarService().clear(account);
2306										databaseBackend.updateAccount(account);
2307									}
2308									callback.success(avatar);
2309								} else {
2310									callback.error(
2311											R.string.error_publish_avatar_server_reject,
2312											avatar);
2313								}
2314							}
2315						});
2316					} else {
2317						callback.error(
2318								R.string.error_publish_avatar_server_reject,
2319								avatar);
2320					}
2321				}
2322			});
2323		} else {
2324			callback.error(R.string.error_publish_avatar_converting, null);
2325		}
2326	}
2327
2328	public void fetchAvatar(Account account, Avatar avatar) {
2329		fetchAvatar(account, avatar, null);
2330	}
2331
2332	public void fetchAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2333		final String KEY = generateFetchKey(account, avatar);
2334		synchronized (this.mInProgressAvatarFetches) {
2335			if (this.mInProgressAvatarFetches.contains(KEY)) {
2336				return;
2337			} else {
2338				switch (avatar.origin) {
2339					case PEP:
2340						this.mInProgressAvatarFetches.add(KEY);
2341						fetchAvatarPep(account, avatar, callback);
2342						break;
2343					case VCARD:
2344						this.mInProgressAvatarFetches.add(KEY);
2345						fetchAvatarVcard(account, avatar, callback);
2346						break;
2347				}
2348			}
2349		}
2350	}
2351
2352	private void fetchAvatarPep(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2353		IqPacket packet = this.mIqGenerator.retrievePepAvatar(avatar);
2354		sendIqPacket(account, packet, new OnIqPacketReceived() {
2355
2356			@Override
2357			public void onIqPacketReceived(Account account, IqPacket result) {
2358				synchronized (mInProgressAvatarFetches) {
2359					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2360				}
2361				final String ERROR = account.getJid().toBareJid()
2362						+ ": fetching avatar for " + avatar.owner + " failed ";
2363				if (result.getType() == IqPacket.TYPE.RESULT) {
2364					avatar.image = mIqParser.avatarData(result);
2365					if (avatar.image != null) {
2366						if (getFileBackend().save(avatar)) {
2367							if (account.getJid().toBareJid().equals(avatar.owner)) {
2368								if (account.setAvatar(avatar.getFilename())) {
2369									databaseBackend.updateAccount(account);
2370								}
2371								getAvatarService().clear(account);
2372								updateConversationUi();
2373								updateAccountUi();
2374							} else {
2375								Contact contact = account.getRoster()
2376										.getContact(avatar.owner);
2377								contact.setAvatar(avatar);
2378								getAvatarService().clear(contact);
2379								updateConversationUi();
2380								updateRosterUi();
2381							}
2382							if (callback != null) {
2383								callback.success(avatar);
2384							}
2385							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2386									+ ": succesfuly fetched pep avatar for " + avatar.owner);
2387							return;
2388						}
2389					} else {
2390
2391						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
2392					}
2393				} else {
2394					Element error = result.findChild("error");
2395					if (error == null) {
2396						Log.d(Config.LOGTAG, ERROR + "(server error)");
2397					} else {
2398						Log.d(Config.LOGTAG, ERROR + error.toString());
2399					}
2400				}
2401				if (callback != null) {
2402					callback.error(0, null);
2403				}
2404
2405			}
2406		});
2407	}
2408
2409	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2410		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
2411		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2412			@Override
2413			public void onIqPacketReceived(Account account, IqPacket packet) {
2414				synchronized (mInProgressAvatarFetches) {
2415					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2416				}
2417				if (packet.getType() == IqPacket.TYPE.RESULT) {
2418					Element vCard = packet.findChild("vCard", "vcard-temp");
2419					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
2420					String image = photo != null ? photo.findChildContent("BINVAL") : null;
2421					if (image != null) {
2422						avatar.image = image;
2423						if (getFileBackend().save(avatar)) {
2424							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2425									+ ": successfully fetched vCard avatar for " + avatar.owner);
2426							if (avatar.owner.isBareJid()) {
2427								Contact contact = account.getRoster()
2428										.getContact(avatar.owner);
2429								contact.setAvatar(avatar);
2430								getAvatarService().clear(contact);
2431								updateConversationUi();
2432								updateRosterUi();
2433							} else {
2434								Conversation conversation = find(account, avatar.owner.toBareJid());
2435								if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
2436									MucOptions.User user = conversation.getMucOptions().findUser(avatar.owner.getResourcepart());
2437									if (user != null) {
2438										if (user.setAvatar(avatar)) {
2439											getAvatarService().clear(user);
2440											updateConversationUi();
2441											updateMucRosterUi();
2442										}
2443									}
2444								}
2445							}
2446						}
2447					}
2448				}
2449			}
2450		});
2451	}
2452
2453	public void checkForAvatar(Account account, final UiCallback<Avatar> callback) {
2454		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2455		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2456
2457			@Override
2458			public void onIqPacketReceived(Account account, IqPacket packet) {
2459				if (packet.getType() == IqPacket.TYPE.RESULT) {
2460					Element pubsub = packet.findChild("pubsub",
2461							"http://jabber.org/protocol/pubsub");
2462					if (pubsub != null) {
2463						Element items = pubsub.findChild("items");
2464						if (items != null) {
2465							Avatar avatar = Avatar.parseMetadata(items);
2466							if (avatar != null) {
2467								avatar.owner = account.getJid().toBareJid();
2468								if (fileBackend.isAvatarCached(avatar)) {
2469									if (account.setAvatar(avatar.getFilename())) {
2470										databaseBackend.updateAccount(account);
2471									}
2472									getAvatarService().clear(account);
2473									callback.success(avatar);
2474								} else {
2475									fetchAvatarPep(account, avatar, callback);
2476								}
2477								return;
2478							}
2479						}
2480					}
2481				}
2482				callback.error(0, null);
2483			}
2484		});
2485	}
2486
2487	public void deleteContactOnServer(Contact contact) {
2488		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
2489		contact.resetOption(Contact.Options.DIRTY_PUSH);
2490		contact.setOption(Contact.Options.DIRTY_DELETE);
2491		Account account = contact.getAccount();
2492		if (account.getStatus() == Account.State.ONLINE) {
2493			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2494			Element item = iq.query(Xmlns.ROSTER).addChild("item");
2495			item.setAttribute("jid", contact.getJid().toString());
2496			item.setAttribute("subscription", "remove");
2497			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2498		}
2499	}
2500
2501	public void updateConversation(Conversation conversation) {
2502		this.databaseBackend.updateConversation(conversation);
2503	}
2504
2505	private void reconnectAccount(final Account account, final boolean force, final boolean interactive) {
2506		synchronized (account) {
2507			XmppConnection connection = account.getXmppConnection();
2508			if (connection != null) {
2509				disconnect(account, force);
2510			} else {
2511				connection = createConnection(account);
2512				account.setXmppConnection(connection);
2513			}
2514			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2515				synchronized (this.mInProgressAvatarFetches) {
2516					for (Iterator<String> iterator = this.mInProgressAvatarFetches.iterator(); iterator.hasNext(); ) {
2517						final String KEY = iterator.next();
2518						if (KEY.startsWith(account.getJid().toBareJid() + "_")) {
2519							iterator.remove();
2520						}
2521					}
2522				}
2523				if (!force) {
2524					try {
2525						Log.d(Config.LOGTAG, "wait for disconnect");
2526						Thread.sleep(500); //sleep  wait for disconnect
2527					} catch (InterruptedException e) {
2528						//ignored
2529					}
2530				}
2531				Thread thread = new Thread(connection);
2532				connection.setInteractive(interactive);
2533				thread.start();
2534				scheduleWakeUpCall(Config.CONNECT_DISCO_TIMEOUT, account.getUuid().hashCode());
2535			} else {
2536				account.getRoster().clearPresences();
2537				connection.resetEverything();
2538			}
2539		}
2540	}
2541
2542	public void reconnectAccountInBackground(final Account account) {
2543		new Thread(new Runnable() {
2544			@Override
2545			public void run() {
2546				reconnectAccount(account, false, true);
2547			}
2548		}).start();
2549	}
2550
2551	public void invite(Conversation conversation, Jid contact) {
2552		Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": inviting " + contact + " to " + conversation.getJid().toBareJid());
2553		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
2554		sendMessagePacket(conversation.getAccount(), packet);
2555	}
2556
2557	public void directInvite(Conversation conversation, Jid jid) {
2558		MessagePacket packet = mMessageGenerator.directInvite(conversation, jid);
2559		sendMessagePacket(conversation.getAccount(), packet);
2560	}
2561
2562	public void resetSendingToWaiting(Account account) {
2563		for (Conversation conversation : getConversations()) {
2564			if (conversation.getAccount() == account) {
2565				conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
2566
2567					@Override
2568					public void onMessageFound(Message message) {
2569						markMessage(message, Message.STATUS_WAITING);
2570					}
2571				});
2572			}
2573		}
2574	}
2575
2576	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status) {
2577		if (uuid == null) {
2578			return null;
2579		}
2580		for (Conversation conversation : getConversations()) {
2581			if (conversation.getJid().toBareJid().equals(recipient) && conversation.getAccount() == account) {
2582				final Message message = conversation.findSentMessageWithUuidOrRemoteId(uuid);
2583				if (message != null) {
2584					markMessage(message, status);
2585				}
2586				return message;
2587			}
2588		}
2589		return null;
2590	}
2591
2592	public boolean markMessage(Conversation conversation, String uuid, int status) {
2593		if (uuid == null) {
2594			return false;
2595		} else {
2596			Message message = conversation.findSentMessageWithUuid(uuid);
2597			if (message != null) {
2598				markMessage(message, status);
2599				return true;
2600			} else {
2601				return false;
2602			}
2603		}
2604	}
2605
2606	public void markMessage(Message message, int status) {
2607		if (status == Message.STATUS_SEND_FAILED
2608				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
2609				.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
2610			return;
2611		}
2612		message.setStatus(status);
2613		databaseBackend.updateMessage(message);
2614		updateConversationUi();
2615	}
2616
2617	public SharedPreferences getPreferences() {
2618		return PreferenceManager
2619				.getDefaultSharedPreferences(getApplicationContext());
2620	}
2621
2622	public boolean confirmMessages() {
2623		return getPreferences().getBoolean("confirm_messages", true);
2624	}
2625
2626	public boolean allowMessageCorrection() {
2627		return getPreferences().getBoolean("allow_message_correction", true);
2628	}
2629
2630	public boolean sendChatStates() {
2631		return getPreferences().getBoolean("chat_states", false);
2632	}
2633
2634	public boolean saveEncryptedMessages() {
2635		return !getPreferences().getBoolean("dont_save_encrypted", false);
2636	}
2637
2638	private boolean respectAutojoin() {
2639		return getPreferences().getBoolean("autojoin", true);
2640	}
2641
2642	public boolean indicateReceived() {
2643		return getPreferences().getBoolean("indicate_received", false);
2644	}
2645
2646	public boolean useTorToConnect() {
2647		return Config.FORCE_ORBOT || getPreferences().getBoolean("use_tor", false);
2648	}
2649
2650	public boolean showExtendedConnectionOptions() {
2651		return getPreferences().getBoolean("show_connection_options", false);
2652	}
2653
2654	public int unreadCount() {
2655		int count = 0;
2656		for (Conversation conversation : getConversations()) {
2657			count += conversation.unreadCount();
2658		}
2659		return count;
2660	}
2661
2662
2663	public void showErrorToastInUi(int resId) {
2664		if (mOnShowErrorToast != null) {
2665			mOnShowErrorToast.onShowErrorToast(resId);
2666		}
2667	}
2668
2669	public void updateConversationUi() {
2670		if (mOnConversationUpdate != null) {
2671			mOnConversationUpdate.onConversationUpdate();
2672		}
2673	}
2674
2675	public void updateAccountUi() {
2676		if (mOnAccountUpdate != null) {
2677			mOnAccountUpdate.onAccountUpdate();
2678		}
2679	}
2680
2681	public void updateRosterUi() {
2682		if (mOnRosterUpdate != null) {
2683			mOnRosterUpdate.onRosterUpdate();
2684		}
2685	}
2686
2687	public boolean displayCaptchaRequest(Account account, String id, Data data, Bitmap captcha) {
2688		boolean rc = false;
2689		if (mOnCaptchaRequested != null) {
2690			DisplayMetrics metrics = getApplicationContext().getResources().getDisplayMetrics();
2691			Bitmap scaled = Bitmap.createScaledBitmap(captcha, (int) (captcha.getWidth() * metrics.scaledDensity),
2692					(int) (captcha.getHeight() * metrics.scaledDensity), false);
2693
2694			mOnCaptchaRequested.onCaptchaRequested(account, id, data, scaled);
2695			rc = true;
2696		}
2697
2698		return rc;
2699	}
2700
2701	public void updateBlocklistUi(final OnUpdateBlocklist.Status status) {
2702		if (mOnUpdateBlocklist != null) {
2703			mOnUpdateBlocklist.OnUpdateBlocklist(status);
2704		}
2705	}
2706
2707	public void updateMucRosterUi() {
2708		if (mOnMucRosterUpdate != null) {
2709			mOnMucRosterUpdate.onMucRosterUpdate();
2710		}
2711	}
2712
2713	public void keyStatusUpdated(AxolotlService.FetchStatus report) {
2714		if (mOnKeyStatusUpdated != null) {
2715			mOnKeyStatusUpdated.onKeyStatusUpdated(report);
2716		}
2717	}
2718
2719	public Account findAccountByJid(final Jid accountJid) {
2720		for (Account account : this.accounts) {
2721			if (account.getJid().toBareJid().equals(accountJid.toBareJid())) {
2722				return account;
2723			}
2724		}
2725		return null;
2726	}
2727
2728	public Conversation findConversationByUuid(String uuid) {
2729		for (Conversation conversation : getConversations()) {
2730			if (conversation.getUuid().equals(uuid)) {
2731				return conversation;
2732			}
2733		}
2734		return null;
2735	}
2736
2737	public boolean markRead(final Conversation conversation) {
2738		mNotificationService.clear(conversation);
2739		final List<Message> readMessages = conversation.markRead();
2740		if (readMessages.size() > 0) {
2741			Runnable runnable = new Runnable() {
2742				@Override
2743				public void run() {
2744					for (Message message : readMessages) {
2745						databaseBackend.updateMessage(message);
2746					}
2747				}
2748			};
2749			mDatabaseExecutor.execute(runnable);
2750			updateUnreadCountBadge();
2751			return true;
2752		} else {
2753			return false;
2754		}
2755	}
2756
2757	public synchronized void updateUnreadCountBadge() {
2758		int count = unreadCount();
2759		if (unreadCount != count) {
2760			Log.d(Config.LOGTAG, "update unread count to " + count);
2761			if (count > 0) {
2762				ShortcutBadger.with(getApplicationContext()).count(count);
2763			} else {
2764				ShortcutBadger.with(getApplicationContext()).remove();
2765			}
2766			unreadCount = count;
2767		}
2768	}
2769
2770	public void sendReadMarker(final Conversation conversation) {
2771		final Message markable = conversation.getLatestMarkableMessage();
2772		if (this.markRead(conversation)) {
2773			updateConversationUi();
2774		}
2775		if (confirmMessages() && markable != null && markable.getRemoteMsgId() != null) {
2776			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": sending read marker to " + markable.getCounterpart().toString());
2777			Account account = conversation.getAccount();
2778			final Jid to = markable.getCounterpart();
2779			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId());
2780			this.sendMessagePacket(conversation.getAccount(), packet);
2781		}
2782	}
2783
2784	public SecureRandom getRNG() {
2785		return this.mRandom;
2786	}
2787
2788	public MemorizingTrustManager getMemorizingTrustManager() {
2789		return this.mMemorizingTrustManager;
2790	}
2791
2792	public void setMemorizingTrustManager(MemorizingTrustManager trustManager) {
2793		this.mMemorizingTrustManager = trustManager;
2794	}
2795
2796	public void updateMemorizingTrustmanager() {
2797		final MemorizingTrustManager tm;
2798		final boolean dontTrustSystemCAs = getPreferences().getBoolean("dont_trust_system_cas", false);
2799		if (dontTrustSystemCAs) {
2800			tm = new MemorizingTrustManager(getApplicationContext(), null);
2801		} else {
2802			tm = new MemorizingTrustManager(getApplicationContext());
2803		}
2804		setMemorizingTrustManager(tm);
2805	}
2806
2807	public PowerManager getPowerManager() {
2808		return this.pm;
2809	}
2810
2811	public LruCache<String, Bitmap> getBitmapCache() {
2812		return this.mBitmapCache;
2813	}
2814
2815	public void syncRosterToDisk(final Account account) {
2816		Runnable runnable = new Runnable() {
2817
2818			@Override
2819			public void run() {
2820				databaseBackend.writeRoster(account.getRoster());
2821			}
2822		};
2823		mDatabaseExecutor.execute(runnable);
2824
2825	}
2826
2827	public List<String> getKnownHosts() {
2828		final List<String> hosts = new ArrayList<>();
2829		for (final Account account : getAccounts()) {
2830			if (!hosts.contains(account.getServer().toString())) {
2831				hosts.add(account.getServer().toString());
2832			}
2833			for (final Contact contact : account.getRoster().getContacts()) {
2834				if (contact.showInRoster()) {
2835					final String server = contact.getServer().toString();
2836					if (server != null && !hosts.contains(server)) {
2837						hosts.add(server);
2838					}
2839				}
2840			}
2841		}
2842		return hosts;
2843	}
2844
2845	public List<String> getKnownConferenceHosts() {
2846		final ArrayList<String> mucServers = new ArrayList<>();
2847		for (final Account account : accounts) {
2848			if (account.getXmppConnection() != null) {
2849				final String server = account.getXmppConnection().getMucServer();
2850				if (server != null && !mucServers.contains(server)) {
2851					mucServers.add(server);
2852				}
2853			}
2854		}
2855		return mucServers;
2856	}
2857
2858	public void sendMessagePacket(Account account, MessagePacket packet) {
2859		XmppConnection connection = account.getXmppConnection();
2860		if (connection != null) {
2861			connection.sendMessagePacket(packet);
2862		}
2863	}
2864
2865	public void sendPresencePacket(Account account, PresencePacket packet) {
2866		XmppConnection connection = account.getXmppConnection();
2867		if (connection != null) {
2868			connection.sendPresencePacket(packet);
2869		}
2870	}
2871
2872	public void sendCreateAccountWithCaptchaPacket(Account account, String id, Data data) {
2873		XmppConnection connection = account.getXmppConnection();
2874		if (connection != null) {
2875			connection.sendCaptchaRegistryRequest(id, data);
2876		}
2877	}
2878
2879	public void sendIqPacket(final Account account, final IqPacket packet, final OnIqPacketReceived callback) {
2880		final XmppConnection connection = account.getXmppConnection();
2881		if (connection != null) {
2882			connection.sendIqPacket(packet, callback);
2883		}
2884	}
2885
2886	public void sendPresence(final Account account) {
2887		sendPresencePacket(account, mPresenceGenerator.selfPresence(account, getTargetPresence()));
2888	}
2889
2890	public void refreshAllPresences() {
2891		for (Account account : getAccounts()) {
2892			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2893				sendPresence(account);
2894			}
2895		}
2896	}
2897
2898	private void refreshAllGcmTokens() {
2899		for(Account account : getAccounts()) {
2900			if (account.isOnlineAndConnected() && mPushManagementService.available(account)) {
2901				mPushManagementService.registerPushTokenOnServer(account);
2902			}
2903		}
2904	}
2905
2906	public void sendOfflinePresence(final Account account) {
2907		sendPresencePacket(account, mPresenceGenerator.sendOfflinePresence(account));
2908	}
2909
2910	public MessageGenerator getMessageGenerator() {
2911		return this.mMessageGenerator;
2912	}
2913
2914	public PresenceGenerator getPresenceGenerator() {
2915		return this.mPresenceGenerator;
2916	}
2917
2918	public IqGenerator getIqGenerator() {
2919		return this.mIqGenerator;
2920	}
2921
2922	public IqParser getIqParser() {
2923		return this.mIqParser;
2924	}
2925
2926	public JingleConnectionManager getJingleConnectionManager() {
2927		return this.mJingleConnectionManager;
2928	}
2929
2930	public MessageArchiveService getMessageArchiveService() {
2931		return this.mMessageArchiveService;
2932	}
2933
2934	public List<Contact> findContacts(Jid jid) {
2935		ArrayList<Contact> contacts = new ArrayList<>();
2936		for (Account account : getAccounts()) {
2937			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2938				Contact contact = account.getRoster().getContactFromRoster(jid);
2939				if (contact != null) {
2940					contacts.add(contact);
2941				}
2942			}
2943		}
2944		return contacts;
2945	}
2946
2947	public NotificationService getNotificationService() {
2948		return this.mNotificationService;
2949	}
2950
2951	public HttpConnectionManager getHttpConnectionManager() {
2952		return this.mHttpConnectionManager;
2953	}
2954
2955	public void resendFailedMessages(final Message message) {
2956		final Collection<Message> messages = new ArrayList<>();
2957		Message current = message;
2958		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
2959			messages.add(current);
2960			if (current.mergeable(current.next())) {
2961				current = current.next();
2962			} else {
2963				break;
2964			}
2965		}
2966		for (final Message msg : messages) {
2967			msg.setTime(System.currentTimeMillis());
2968			markMessage(msg, Message.STATUS_WAITING);
2969			this.resendMessage(msg, false);
2970		}
2971	}
2972
2973	public void clearConversationHistory(final Conversation conversation) {
2974		conversation.clearMessages();
2975		conversation.setHasMessagesLeftOnServer(false); //avoid messages getting loaded through mam
2976		conversation.setLastClearHistory(System.currentTimeMillis());
2977		Runnable runnable = new Runnable() {
2978			@Override
2979			public void run() {
2980				databaseBackend.deleteMessagesInConversation(conversation);
2981			}
2982		};
2983		mDatabaseExecutor.execute(runnable);
2984	}
2985
2986	public void sendBlockRequest(final Blockable blockable) {
2987		if (blockable != null && blockable.getBlockedJid() != null) {
2988			final Jid jid = blockable.getBlockedJid();
2989			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetBlockRequest(jid), new OnIqPacketReceived() {
2990
2991				@Override
2992				public void onIqPacketReceived(final Account account, final IqPacket packet) {
2993					if (packet.getType() == IqPacket.TYPE.RESULT) {
2994						account.getBlocklist().add(jid);
2995						updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
2996					}
2997				}
2998			});
2999		}
3000	}
3001
3002	public void sendUnblockRequest(final Blockable blockable) {
3003		if (blockable != null && blockable.getJid() != null) {
3004			final Jid jid = blockable.getBlockedJid();
3005			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetUnblockRequest(jid), new OnIqPacketReceived() {
3006				@Override
3007				public void onIqPacketReceived(final Account account, final IqPacket packet) {
3008					if (packet.getType() == IqPacket.TYPE.RESULT) {
3009						account.getBlocklist().remove(jid);
3010						updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
3011					}
3012				}
3013			});
3014		}
3015	}
3016
3017	public void publishDisplayName(Account account) {
3018		String displayName = account.getDisplayName();
3019		if (displayName != null && !displayName.isEmpty()) {
3020			IqPacket publish = mIqGenerator.publishNick(displayName);
3021			sendIqPacket(account, publish, new OnIqPacketReceived() {
3022				@Override
3023				public void onIqPacketReceived(Account account, IqPacket packet) {
3024					if (packet.getType() == IqPacket.TYPE.ERROR) {
3025						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not publish nick");
3026					}
3027				}
3028			});
3029		}
3030	}
3031
3032	private ServiceDiscoveryResult getCachedServiceDiscoveryResult(Pair<String,String> key) {
3033		ServiceDiscoveryResult result = discoCache.get(key);
3034		if (result != null) {
3035			return result;
3036		} else {
3037			result = databaseBackend.findDiscoveryResult(key.first, key.second);
3038			if (result != null) {
3039				discoCache.put(key, result);
3040			}
3041			return result;
3042		}
3043	}
3044
3045	public void fetchCaps(Account account, final Jid jid, final Presence presence) {
3046		final Pair<String,String> key = new Pair<>(presence.getHash(), presence.getVer());
3047		ServiceDiscoveryResult disco = getCachedServiceDiscoveryResult(key);
3048		if (disco != null) {
3049			presence.setServiceDiscoveryResult(disco);
3050		} else {
3051			if (!account.inProgressDiscoFetches.contains(key)) {
3052				account.inProgressDiscoFetches.add(key);
3053				IqPacket request = new IqPacket(IqPacket.TYPE.GET);
3054				request.setTo(jid);
3055				request.query("http://jabber.org/protocol/disco#info");
3056				Log.d(Config.LOGTAG,account.getJid().toBareJid()+": making disco request for "+key.second+" to "+jid);
3057				sendIqPacket(account, request, new OnIqPacketReceived() {
3058					@Override
3059					public void onIqPacketReceived(Account account, IqPacket discoPacket) {
3060						if (discoPacket.getType() == IqPacket.TYPE.RESULT) {
3061							ServiceDiscoveryResult disco = new ServiceDiscoveryResult(discoPacket);
3062							if (presence.getVer().equals(disco.getVer())) {
3063								databaseBackend.insertDiscoveryResult(disco);
3064								injectServiceDiscorveryResult(account.getRoster(), presence.getHash(), presence.getVer(), disco);
3065							} else {
3066								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": mismatch in caps for contact " + jid + " " + presence.getVer() + " vs " + disco.getVer());
3067							}
3068						}
3069						account.inProgressDiscoFetches.remove(key);
3070					}
3071				});
3072			}
3073		}
3074	}
3075
3076	private void injectServiceDiscorveryResult(Roster roster, String hash, String ver, ServiceDiscoveryResult disco) {
3077		for(Contact contact : roster.getContacts()) {
3078			for(Presence presence : contact.getPresences().getPresences().values()) {
3079				if (hash.equals(presence.getHash()) && ver.equals(presence.getVer())) {
3080					presence.setServiceDiscoveryResult(disco);
3081				}
3082			}
3083		}
3084	}
3085
3086	public void fetchMamPreferences(Account account, final OnMamPreferencesFetched callback) {
3087		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
3088		request.addChild("prefs","urn:xmpp:mam:0");
3089		sendIqPacket(account, request, new OnIqPacketReceived() {
3090			@Override
3091			public void onIqPacketReceived(Account account, IqPacket packet) {
3092				Element prefs = packet.findChild("prefs","urn:xmpp:mam:0");
3093				if (packet.getType() == IqPacket.TYPE.RESULT && prefs != null) {
3094					callback.onPreferencesFetched(prefs);
3095				} else {
3096					callback.onPreferencesFetchFailed();
3097				}
3098			}
3099		});
3100	}
3101
3102	public PushManagementService getPushManagementService() {
3103		return mPushManagementService;
3104	}
3105
3106	public interface OnMamPreferencesFetched {
3107		void onPreferencesFetched(Element prefs);
3108		void onPreferencesFetchFailed();
3109	}
3110
3111	public void pushMamPreferences(Account account, Element prefs) {
3112		IqPacket set = new IqPacket(IqPacket.TYPE.SET);
3113		set.addChild(prefs);
3114		sendIqPacket(account, set, null);
3115	}
3116
3117	public interface OnAccountCreated {
3118		void onAccountCreated(Account account);
3119
3120		void informUser(int r);
3121	}
3122
3123	public interface OnMoreMessagesLoaded {
3124		void onMoreMessagesLoaded(int count, Conversation conversation);
3125
3126		void informUser(int r);
3127	}
3128
3129	public interface OnAccountPasswordChanged {
3130		void onPasswordChangeSucceeded();
3131
3132		void onPasswordChangeFailed();
3133	}
3134
3135	public interface OnAffiliationChanged {
3136		void onAffiliationChangedSuccessful(Jid jid);
3137
3138		void onAffiliationChangeFailed(Jid jid, int resId);
3139	}
3140
3141	public interface OnRoleChanged {
3142		void onRoleChangedSuccessful(String nick);
3143
3144		void onRoleChangeFailed(String nick, int resid);
3145	}
3146
3147	public interface OnConversationUpdate {
3148		void onConversationUpdate();
3149	}
3150
3151	public interface OnAccountUpdate {
3152		void onAccountUpdate();
3153	}
3154
3155	public interface OnCaptchaRequested {
3156		void onCaptchaRequested(Account account,
3157								String id,
3158								Data data,
3159								Bitmap captcha);
3160	}
3161
3162	public interface OnRosterUpdate {
3163		void onRosterUpdate();
3164	}
3165
3166	public interface OnMucRosterUpdate {
3167		void onMucRosterUpdate();
3168	}
3169
3170	public interface OnConferenceConfigurationFetched {
3171		void onConferenceConfigurationFetched(Conversation conversation);
3172
3173		void onFetchFailed(Conversation conversation, Element error);
3174	}
3175
3176	public interface OnConferenceJoined {
3177		void onConferenceJoined(Conversation conversation);
3178	}
3179
3180	public interface OnConferenceOptionsPushed {
3181		void onPushSucceeded();
3182
3183		void onPushFailed();
3184	}
3185
3186	public interface OnShowErrorToast {
3187		void onShowErrorToast(int resId);
3188	}
3189
3190	public class XmppConnectionBinder extends Binder {
3191		public XmppConnectionService getService() {
3192			return XmppConnectionService.this;
3193		}
3194	}
3195}