XmppConnectionService.java

   1package eu.siacs.conversations.services;
   2
   3import android.annotation.SuppressLint;
   4import android.annotation.TargetApi;
   5import android.app.AlarmManager;
   6import android.app.PendingIntent;
   7import android.app.Service;
   8import android.content.Context;
   9import android.content.Intent;
  10import android.content.IntentFilter;
  11import android.content.SharedPreferences;
  12import android.database.ContentObserver;
  13import android.graphics.Bitmap;
  14import android.media.AudioManager;
  15import android.net.ConnectivityManager;
  16import android.net.NetworkInfo;
  17import android.net.Uri;
  18import android.os.Binder;
  19import android.os.Build;
  20import android.os.Bundle;
  21import android.os.Environment;
  22import android.os.IBinder;
  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.support.v4.app.RemoteInput;
  30import android.util.DisplayMetrics;
  31import android.util.Log;
  32import android.util.LruCache;
  33import android.util.Pair;
  34
  35import net.java.otr4j.OtrException;
  36import net.java.otr4j.session.Session;
  37import net.java.otr4j.session.SessionID;
  38import net.java.otr4j.session.SessionImpl;
  39import net.java.otr4j.session.SessionStatus;
  40
  41import org.openintents.openpgp.IOpenPgpService2;
  42import org.openintents.openpgp.util.OpenPgpApi;
  43import org.openintents.openpgp.util.OpenPgpServiceConnection;
  44
  45import java.math.BigInteger;
  46import java.security.SecureRandom;
  47import java.security.cert.CertificateException;
  48import java.security.cert.X509Certificate;
  49import java.util.ArrayList;
  50import java.util.Arrays;
  51import java.util.Collection;
  52import java.util.Collections;
  53import java.util.HashMap;
  54import java.util.HashSet;
  55import java.util.Hashtable;
  56import java.util.Iterator;
  57import java.util.List;
  58import java.util.Locale;
  59import java.util.Map;
  60import java.util.concurrent.CopyOnWriteArrayList;
  61
  62import de.duenndns.ssl.MemorizingTrustManager;
  63import eu.siacs.conversations.Config;
  64import eu.siacs.conversations.R;
  65import eu.siacs.conversations.crypto.PgpDecryptionService;
  66import eu.siacs.conversations.crypto.PgpEngine;
  67import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  68import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
  69import eu.siacs.conversations.entities.Account;
  70import eu.siacs.conversations.entities.Blockable;
  71import eu.siacs.conversations.entities.Bookmark;
  72import eu.siacs.conversations.entities.Contact;
  73import eu.siacs.conversations.entities.Conversation;
  74import eu.siacs.conversations.entities.DownloadableFile;
  75import eu.siacs.conversations.entities.Message;
  76import eu.siacs.conversations.entities.MucOptions;
  77import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  78import eu.siacs.conversations.entities.Presence;
  79import eu.siacs.conversations.entities.PresenceTemplate;
  80import eu.siacs.conversations.entities.Roster;
  81import eu.siacs.conversations.entities.ServiceDiscoveryResult;
  82import eu.siacs.conversations.entities.Transferable;
  83import eu.siacs.conversations.entities.TransferablePlaceholder;
  84import eu.siacs.conversations.generator.AbstractGenerator;
  85import eu.siacs.conversations.generator.IqGenerator;
  86import eu.siacs.conversations.generator.MessageGenerator;
  87import eu.siacs.conversations.generator.PresenceGenerator;
  88import eu.siacs.conversations.http.HttpConnectionManager;
  89import eu.siacs.conversations.parser.AbstractParser;
  90import eu.siacs.conversations.parser.IqParser;
  91import eu.siacs.conversations.parser.MessageParser;
  92import eu.siacs.conversations.parser.PresenceParser;
  93import eu.siacs.conversations.persistance.DatabaseBackend;
  94import eu.siacs.conversations.persistance.FileBackend;
  95import eu.siacs.conversations.ui.UiCallback;
  96import eu.siacs.conversations.utils.ConversationsFileObserver;
  97import eu.siacs.conversations.utils.CryptoHelper;
  98import eu.siacs.conversations.utils.ExceptionHelper;
  99import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
 100import eu.siacs.conversations.utils.PRNGFixes;
 101import eu.siacs.conversations.utils.PhoneHelper;
 102import eu.siacs.conversations.utils.ReplacingSerialSingleThreadExecutor;
 103import eu.siacs.conversations.utils.SerialSingleThreadExecutor;
 104import eu.siacs.conversations.utils.Xmlns;
 105import eu.siacs.conversations.xml.Element;
 106import eu.siacs.conversations.xmpp.OnBindListener;
 107import eu.siacs.conversations.xmpp.OnContactStatusChanged;
 108import eu.siacs.conversations.xmpp.OnIqPacketReceived;
 109import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
 110import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
 111import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
 112import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
 113import eu.siacs.conversations.xmpp.OnStatusChanged;
 114import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
 115import eu.siacs.conversations.xmpp.XmppConnection;
 116import eu.siacs.conversations.xmpp.chatstate.ChatState;
 117import eu.siacs.conversations.xmpp.forms.Data;
 118import eu.siacs.conversations.xmpp.forms.Field;
 119import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 120import eu.siacs.conversations.xmpp.jid.Jid;
 121import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 122import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
 123import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
 124import eu.siacs.conversations.xmpp.pep.Avatar;
 125import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 126import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 127import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 128import me.leolin.shortcutbadger.ShortcutBadger;
 129
 130public class XmppConnectionService extends Service {
 131
 132	public static final String ACTION_REPLY_TO_CONVERSATION = "reply_to_conversations";
 133	public static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 134	public static final String ACTION_DISABLE_FOREGROUND = "disable_foreground";
 135	public static final String ACTION_DISMISS_ERROR_NOTIFICATIONS = "dismiss_error";
 136	public static final String ACTION_TRY_AGAIN = "try_again";
 137	public static final String ACTION_IDLE_PING = "idle_ping";
 138	private static final String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
 139	public static final String ACTION_GCM_TOKEN_REFRESH = "gcm_token_refresh";
 140	public static final String ACTION_GCM_MESSAGE_RECEIVED = "gcm_message_received";
 141	private final SerialSingleThreadExecutor mFileAddingExecutor = new SerialSingleThreadExecutor();
 142	private final SerialSingleThreadExecutor mDatabaseExecutor = new SerialSingleThreadExecutor();
 143	private ReplacingSerialSingleThreadExecutor mContactMergerExecutor = new ReplacingSerialSingleThreadExecutor(true);
 144	private final IBinder mBinder = new XmppConnectionBinder();
 145	private final List<Conversation> conversations = new CopyOnWriteArrayList<>();
 146	private final IqGenerator mIqGenerator = new IqGenerator(this);
 147	private final List<String> mInProgressAvatarFetches = new ArrayList<>();
 148	private final HashSet<Jid> mLowPingTimeoutMode = new HashSet<>();
 149
 150	private long mLastActivity = 0;
 151
 152	public DatabaseBackend databaseBackend;
 153	private ContentObserver contactObserver = new ContentObserver(null) {
 154		@Override
 155		public void onChange(boolean selfChange) {
 156			super.onChange(selfChange);
 157			Intent intent = new Intent(getApplicationContext(),
 158					XmppConnectionService.class);
 159			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 160			startService(intent);
 161		}
 162	};
 163	private FileBackend fileBackend = new FileBackend(this);
 164	private MemorizingTrustManager mMemorizingTrustManager;
 165	private NotificationService mNotificationService = new NotificationService(
 166			this);
 167	private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 168	private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 169	private IqParser mIqParser = new IqParser(this);
 170	private OnIqPacketReceived mDefaultIqHandler = new OnIqPacketReceived() {
 171		@Override
 172		public void onIqPacketReceived(Account account, IqPacket packet) {
 173			if (packet.getType() != IqPacket.TYPE.RESULT) {
 174				Element error = packet.findChild("error");
 175				String text = error != null ? error.findChildContent("text") : null;
 176				if (text != null) {
 177					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": received iq error - " + text);
 178				}
 179			}
 180		}
 181	};
 182	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 183	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 184	private List<Account> accounts;
 185	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 186			this);
 187	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 188
 189		@Override
 190		public void onContactStatusChanged(Contact contact, boolean online) {
 191			Conversation conversation = find(getConversations(), contact);
 192			if (conversation != null) {
 193				if (online) {
 194					conversation.endOtrIfNeeded();
 195					if (contact.getPresences().size() == 1) {
 196						sendUnsentMessages(conversation);
 197					}
 198				} else {
 199					//check if the resource we are haveing a conversation with is still online
 200					if (conversation.hasValidOtrSession()) {
 201						String otrResource = conversation.getOtrSession().getSessionID().getUserID();
 202						if (!(Arrays.asList(contact.getPresences().toResourceArray()).contains(otrResource))) {
 203							conversation.endOtrIfNeeded();
 204						}
 205					}
 206				}
 207			}
 208		}
 209	};
 210	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 211			this);
 212	private AvatarService mAvatarService = new AvatarService(this);
 213	private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 214	private PushManagementService mPushManagementService = new PushManagementService(this);
 215	private OnConversationUpdate mOnConversationUpdate = null;
 216
 217
 218	private final ConversationsFileObserver fileObserver = new ConversationsFileObserver(
 219			Environment.getExternalStorageDirectory().getAbsolutePath()
 220	) {
 221		@Override
 222		public void onEvent(int event, String path) {
 223			markFileDeleted(path);
 224		}
 225	};
 226	private final OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 227
 228		@Override
 229		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 230			mJingleConnectionManager.deliverPacket(account, packet);
 231		}
 232	};
 233	private final OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 234
 235		@Override
 236		public void onMessageAcknowledged(Account account, String uuid) {
 237			for (final Conversation conversation : getConversations()) {
 238				if (conversation.getAccount() == account) {
 239					Message message = conversation.findUnsentMessageWithUuid(uuid);
 240					if (message != null) {
 241						markMessage(message, Message.STATUS_SEND);
 242					}
 243				}
 244			}
 245		}
 246	};
 247	private int convChangedListenerCount = 0;
 248	private OnShowErrorToast mOnShowErrorToast = null;
 249	private int showErrorToastListenerCount = 0;
 250	private int unreadCount = -1;
 251	private OnAccountUpdate mOnAccountUpdate = null;
 252	private OnCaptchaRequested mOnCaptchaRequested = null;
 253	private int accountChangedListenerCount = 0;
 254	private int captchaRequestedListenerCount = 0;
 255	private OnRosterUpdate mOnRosterUpdate = null;
 256	private OnUpdateBlocklist mOnUpdateBlocklist = null;
 257	private int updateBlocklistListenerCount = 0;
 258	private int rosterChangedListenerCount = 0;
 259	private OnMucRosterUpdate mOnMucRosterUpdate = null;
 260	private int mucRosterChangedListenerCount = 0;
 261	private OnKeyStatusUpdated mOnKeyStatusUpdated = null;
 262	private int keyStatusUpdatedListenerCount = 0;
 263	private SecureRandom mRandom;
 264	private LruCache<Pair<String,String>,ServiceDiscoveryResult> discoCache = new LruCache<>(20);
 265	private final OnBindListener mOnBindListener = new OnBindListener() {
 266
 267		@Override
 268		public void onBind(final Account account) {
 269			synchronized (mInProgressAvatarFetches) {
 270				for (Iterator<String> iterator = mInProgressAvatarFetches.iterator(); iterator.hasNext(); ) {
 271					final String KEY = iterator.next();
 272					if (KEY.startsWith(account.getJid().toBareJid() + "_")) {
 273						iterator.remove();
 274					}
 275				}
 276			}
 277			account.getRoster().clearPresences();
 278			mJingleConnectionManager.cancelInTransmission();
 279			fetchRosterFromServer(account);
 280			fetchBookmarks(account);
 281			sendPresence(account);
 282			if (mPushManagementService.available(account)) {
 283				mPushManagementService.registerPushTokenOnServer(account);
 284			}
 285			connectMultiModeConversations(account);
 286			syncDirtyContacts(account);
 287		}
 288	};
 289	private OnStatusChanged statusListener = new OnStatusChanged() {
 290
 291		@Override
 292		public void onStatusChanged(final Account account) {
 293			XmppConnection connection = account.getXmppConnection();
 294			if (mOnAccountUpdate != null) {
 295				mOnAccountUpdate.onAccountUpdate();
 296			}
 297			if (account.getStatus() == Account.State.ONLINE) {
 298				if (account.setShowErrorNotification(true)) {
 299					databaseBackend.updateAccount(account);
 300				}
 301				mMessageArchiveService.executePendingQueries(account);
 302				if (connection != null && connection.getFeatures().csi()) {
 303					if (checkListeners()) {
 304						Log.d(Config.LOGTAG, account.getJid().toBareJid() + " sending csi//inactive");
 305						connection.sendInactive();
 306					} else {
 307						Log.d(Config.LOGTAG, account.getJid().toBareJid() + " sending csi//active");
 308						connection.sendActive();
 309					}
 310				}
 311				List<Conversation> conversations = getConversations();
 312				for (Conversation conversation : conversations) {
 313					if (conversation.getAccount() == account
 314							&& !account.pendingConferenceJoins.contains(conversation)) {
 315						if (!conversation.startOtrIfNeeded()) {
 316							Log.d(Config.LOGTAG,account.getJid().toBareJid()+": couldn't start OTR with "+conversation.getContact().getJid()+" when needed");
 317						}
 318						sendUnsentMessages(conversation);
 319					}
 320				}
 321				for (Conversation conversation : account.pendingConferenceLeaves) {
 322					leaveMuc(conversation);
 323				}
 324				account.pendingConferenceLeaves.clear();
 325				for (Conversation conversation : account.pendingConferenceJoins) {
 326					joinMuc(conversation);
 327				}
 328				account.pendingConferenceJoins.clear();
 329				scheduleWakeUpCall(Config.PUSH_MODE ? Config.PING_MIN_INTERVAL : Config.PING_MAX_INTERVAL, account.getUuid().hashCode());
 330			} else if (account.getStatus() == Account.State.OFFLINE || account.getStatus() == Account.State.DISABLED) {
 331				resetSendingToWaiting(account);
 332				final boolean disabled = account.isOptionSet(Account.OPTION_DISABLED);
 333				final boolean listeners = checkListeners();
 334				final boolean pushMode = Config.PUSH_MODE
 335						&& mPushManagementService.available(account)
 336						&& listeners;
 337				Log.d(Config.LOGTAG,account.getJid().toBareJid()+": push mode="+Boolean.toString(pushMode)+" listeners="+Boolean.toString(listeners));
 338				if (!disabled && !pushMode) {
 339					int timeToReconnect = mRandom.nextInt(20) + 10;
 340					scheduleWakeUpCall(timeToReconnect, account.getUuid().hashCode());
 341				}
 342			} else if (account.getStatus() == Account.State.REGISTRATION_SUCCESSFUL) {
 343				databaseBackend.updateAccount(account);
 344				reconnectAccount(account, true, false);
 345			} else if ((account.getStatus() != Account.State.CONNECTING)
 346					&& (account.getStatus() != Account.State.NO_INTERNET)) {
 347				resetSendingToWaiting(account);
 348				if (connection != null) {
 349					int next = connection.getTimeToNextAttempt();
 350					Log.d(Config.LOGTAG, account.getJid().toBareJid()
 351							+ ": error connecting account. try again in "
 352							+ next + "s for the "
 353							+ (connection.getAttempt() + 1) + " time");
 354					scheduleWakeUpCall(next, account.getUuid().hashCode());
 355				}
 356			}
 357			getNotificationService().updateErrorNotification();
 358		}
 359	};
 360	private OpenPgpServiceConnection pgpServiceConnection;
 361	private PgpEngine mPgpEngine = null;
 362	private WakeLock wakeLock;
 363	private PowerManager pm;
 364	private LruCache<String, Bitmap> mBitmapCache;
 365	private EventReceiver mEventReceiver = new EventReceiver();
 366
 367	private boolean mRestoredFromDatabase = false;
 368
 369	private static String generateFetchKey(Account account, final Avatar avatar) {
 370		return account.getJid().toBareJid() + "_" + avatar.owner + "_" + avatar.sha1sum;
 371	}
 372
 373	public boolean areMessagesInitialized() {
 374		return this.mRestoredFromDatabase;
 375	}
 376
 377	public PgpEngine getPgpEngine() {
 378		if (!Config.supportOpenPgp()) {
 379			return null;
 380		} else if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 381			if (this.mPgpEngine == null) {
 382				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 383						getApplicationContext(),
 384						pgpServiceConnection.getService()), this);
 385			}
 386			return mPgpEngine;
 387		} else {
 388			return null;
 389		}
 390
 391	}
 392
 393	public OpenPgpApi getOpenPgpApi() {
 394		if (!Config.supportOpenPgp()) {
 395			return null;
 396		} else if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 397			return new OpenPgpApi(this, pgpServiceConnection.getService());
 398		} else {
 399			return null;
 400		}
 401	}
 402
 403	public FileBackend getFileBackend() {
 404		return this.fileBackend;
 405	}
 406
 407	public AvatarService getAvatarService() {
 408		return this.mAvatarService;
 409	}
 410
 411	public void attachLocationToConversation(final Conversation conversation,
 412											 final Uri uri,
 413											 final UiCallback<Message> callback) {
 414		int encryption = conversation.getNextEncryption();
 415		if (encryption == Message.ENCRYPTION_PGP) {
 416			encryption = Message.ENCRYPTION_DECRYPTED;
 417		}
 418		Message message = new Message(conversation, uri.toString(), encryption);
 419		if (conversation.getNextCounterpart() != null) {
 420			message.setCounterpart(conversation.getNextCounterpart());
 421		}
 422		if (encryption == Message.ENCRYPTION_DECRYPTED) {
 423			getPgpEngine().encrypt(message, callback);
 424		} else {
 425			callback.success(message);
 426		}
 427	}
 428
 429	public void attachFileToConversation(final Conversation conversation,
 430										 final Uri uri,
 431										 final UiCallback<Message> callback) {
 432		if (FileBackend.weOwnFile(this, uri)) {
 433			Log.d(Config.LOGTAG,"trying to attach file that belonged to us");
 434			callback.error(R.string.security_error_invalid_file_access, null);
 435			return;
 436		}
 437		final Message message;
 438		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 439			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 440		} else {
 441			message = new Message(conversation, "", conversation.getNextEncryption());
 442		}
 443		message.setCounterpart(conversation.getNextCounterpart());
 444		message.setType(Message.TYPE_FILE);
 445		final String path = getFileBackend().getOriginalPath(uri);
 446		mFileAddingExecutor.execute(new Runnable() {
 447			@Override
 448			public void run() {
 449				if (path != null) {
 450					message.setRelativeFilePath(path);
 451					getFileBackend().updateFileParams(message);
 452					if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 453						getPgpEngine().encrypt(message, callback);
 454					} else {
 455						callback.success(message);
 456					}
 457				} else {
 458					try {
 459						getFileBackend().copyFileToPrivateStorage(message, uri);
 460						getFileBackend().updateFileParams(message);
 461						if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
 462							final PgpEngine pgpEngine = getPgpEngine();
 463							if (pgpEngine != null) {
 464								pgpEngine.encrypt(message, callback);
 465							} else if (callback != null) {
 466								callback.error(R.string.unable_to_connect_to_keychain, null);
 467							}
 468						} else {
 469							callback.success(message);
 470						}
 471					} catch (FileBackend.FileCopyException e) {
 472						callback.error(e.getResId(), message);
 473					}
 474				}
 475			}
 476		});
 477	}
 478
 479	public void attachImageToConversation(final Conversation conversation, final Uri uri, final UiCallback<Message> callback) {
 480		if (FileBackend.weOwnFile(this, uri)) {
 481			Log.d(Config.LOGTAG,"trying to attach file that belonged to us");
 482			callback.error(R.string.security_error_invalid_file_access, null);
 483			return;
 484		}
 485		final String compressPictures = getCompressPicturesPreference();
 486		if ("never".equals(compressPictures)
 487				|| ("auto".equals(compressPictures) && getFileBackend().useImageAsIs(uri))) {
 488			Log.d(Config.LOGTAG,conversation.getAccount().getJid().toBareJid()+ ": not compressing picture. sending as file");
 489			attachFileToConversation(conversation, uri, callback);
 490			return;
 491		}
 492		final Message message;
 493		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 494			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 495		} else {
 496			message = new Message(conversation, "", conversation.getNextEncryption());
 497		}
 498		message.setCounterpart(conversation.getNextCounterpart());
 499		message.setType(Message.TYPE_IMAGE);
 500		mFileAddingExecutor.execute(new Runnable() {
 501
 502			@Override
 503			public void run() {
 504				try {
 505					getFileBackend().copyImageToPrivateStorage(message, uri);
 506					if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 507						final PgpEngine pgpEngine = getPgpEngine();
 508						if (pgpEngine != null) {
 509							pgpEngine.encrypt(message, callback);
 510						} else if (callback != null){
 511							callback.error(R.string.unable_to_connect_to_keychain, null);
 512						}
 513					} else {
 514						callback.success(message);
 515					}
 516				} catch (final FileBackend.FileCopyException e) {
 517					callback.error(e.getResId(), message);
 518				}
 519			}
 520		});
 521	}
 522
 523	public Conversation find(Bookmark bookmark) {
 524		return find(bookmark.getAccount(), bookmark.getJid());
 525	}
 526
 527	public Conversation find(final Account account, final Jid jid) {
 528		return find(getConversations(), account, jid);
 529	}
 530
 531	@Override
 532	public int onStartCommand(Intent intent, int flags, int startId) {
 533		final String action = intent == null ? null : intent.getAction();
 534		String pushedAccountHash = null;
 535		boolean interactive = false;
 536		if (action != null) {
 537			final Conversation c = findConversationByUuid(intent.getStringExtra("uuid"));
 538			switch (action) {
 539				case ConnectivityManager.CONNECTIVITY_ACTION:
 540					if (hasInternetConnection() && Config.RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE) {
 541						resetAllAttemptCounts(true);
 542					}
 543					break;
 544				case ACTION_MERGE_PHONE_CONTACTS:
 545					if (mRestoredFromDatabase) {
 546						loadPhoneContacts();
 547					}
 548					return START_STICKY;
 549				case Intent.ACTION_SHUTDOWN:
 550					logoutAndSave(true);
 551					return START_NOT_STICKY;
 552				case ACTION_CLEAR_NOTIFICATION:
 553					if (c != null) {
 554						mNotificationService.clear(c);
 555					} else {
 556						mNotificationService.clear();
 557					}
 558					break;
 559				case ACTION_DISABLE_FOREGROUND:
 560					getPreferences().edit().putBoolean("keep_foreground_service", false).commit();
 561					toggleForegroundService();
 562					break;
 563				case ACTION_DISMISS_ERROR_NOTIFICATIONS:
 564					dismissErrorNotifications();
 565					break;
 566				case ACTION_TRY_AGAIN:
 567					resetAllAttemptCounts(false);
 568					interactive = true;
 569					break;
 570				case ACTION_REPLY_TO_CONVERSATION:
 571					Bundle remoteInput = RemoteInput.getResultsFromIntent(intent);
 572					if (remoteInput != null && c != null) {
 573						final CharSequence body = remoteInput.getCharSequence("text_reply");
 574						if (body != null && body.length() > 0) {
 575							directReply(c, body.toString(),intent.getBooleanExtra("dismiss_notification",false));
 576						}
 577					}
 578					break;
 579				case AudioManager.RINGER_MODE_CHANGED_ACTION:
 580					if (xaOnSilentMode()) {
 581						refreshAllPresences();
 582					}
 583					break;
 584				case Intent.ACTION_SCREEN_ON:
 585					deactivateGracePeriod();
 586				case Intent.ACTION_SCREEN_OFF:
 587					if (awayWhenScreenOff()) {
 588						refreshAllPresences();
 589					}
 590					break;
 591				case ACTION_GCM_TOKEN_REFRESH:
 592					refreshAllGcmTokens();
 593					break;
 594				case ACTION_IDLE_PING:
 595					if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M
 596							&& !Config.PUSH_MODE) {
 597						scheduleNextIdlePing();
 598					}
 599					break;
 600				case ACTION_GCM_MESSAGE_RECEIVED:
 601					Log.d(Config.LOGTAG,"gcm push message arrived in service. extras="+intent.getExtras());
 602					pushedAccountHash = intent.getStringExtra("account");
 603					break;
 604			}
 605		}
 606		this.wakeLock.acquire();
 607
 608		boolean pingNow = false;
 609		HashSet<Account> pingCandidates = new HashSet<>();
 610
 611		for (Account account : accounts) {
 612			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
 613				if (!hasInternetConnection()) {
 614					account.setStatus(Account.State.NO_INTERNET);
 615					if (statusListener != null) {
 616						statusListener.onStatusChanged(account);
 617					}
 618				} else {
 619					if (account.getStatus() == Account.State.NO_INTERNET) {
 620						account.setStatus(Account.State.OFFLINE);
 621						if (statusListener != null) {
 622							statusListener.onStatusChanged(account);
 623						}
 624					}
 625					if (account.getStatus() == Account.State.ONLINE) {
 626						long lastReceived = account.getXmppConnection().getLastPacketReceived();
 627						long lastSent = account.getXmppConnection().getLastPingSent();
 628						long pingInterval = (Config.PUSH_MODE || "ui".equals(action)) ? Config.PING_MIN_INTERVAL * 1000 : Config.PING_MAX_INTERVAL * 1000;
 629						long msToNextPing = (Math.max(lastReceived, lastSent) + pingInterval) - SystemClock.elapsedRealtime();
 630						int pingTimeout = mLowPingTimeoutMode.contains(account.getJid().toBareJid()) ? Config.LOW_PING_TIMEOUT * 1000 : Config.PING_TIMEOUT * 1000;
 631						long pingTimeoutIn = (lastSent + pingTimeout) - SystemClock.elapsedRealtime();
 632						if (lastSent > lastReceived) {
 633							if (pingTimeoutIn < 0) {
 634								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ping timeout");
 635								this.reconnectAccount(account, true, interactive);
 636							} else {
 637								int secs = (int) (pingTimeoutIn / 1000);
 638								this.scheduleWakeUpCall(secs, account.getUuid().hashCode());
 639							}
 640						} else {
 641							pingCandidates.add(account);
 642							if (CryptoHelper.getAccountFingerprint(account).equals(pushedAccountHash)) {
 643								pingNow = true;
 644								if (mLowPingTimeoutMode.add(account.getJid().toBareJid())) {
 645									Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": entering low ping timeout mode");
 646								}
 647							} else if (msToNextPing <= 0) {
 648								pingNow = true;
 649							} else {
 650								this.scheduleWakeUpCall((int) (msToNextPing / 1000), account.getUuid().hashCode());
 651								if (mLowPingTimeoutMode.remove(account.getJid().toBareJid())) {
 652									Log.d(Config.LOGTAG,account.getJid().toBareJid()+": leaving low ping timeout mode");
 653								}
 654							}
 655						}
 656					} else if (account.getStatus() == Account.State.OFFLINE) {
 657						reconnectAccount(account, true, interactive);
 658					} else if (account.getStatus() == Account.State.CONNECTING) {
 659						long secondsSinceLastConnect = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000;
 660						long secondsSinceLastDisco = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastDiscoStarted()) / 1000;
 661						long discoTimeout = Config.CONNECT_DISCO_TIMEOUT - secondsSinceLastDisco;
 662						long timeout = Config.CONNECT_TIMEOUT - secondsSinceLastConnect;
 663						if (timeout < 0) {
 664							Log.d(Config.LOGTAG, account.getJid() + ": time out during connect reconnecting");
 665							account.getXmppConnection().resetAttemptCount();
 666							reconnectAccount(account, true, interactive);
 667						} else if (discoTimeout < 0) {
 668							account.getXmppConnection().sendDiscoTimeout();
 669							scheduleWakeUpCall((int) Math.min(timeout,discoTimeout), account.getUuid().hashCode());
 670						} else {
 671							scheduleWakeUpCall((int) Math.min(timeout,discoTimeout), account.getUuid().hashCode());
 672						}
 673					} else {
 674						if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 675							reconnectAccount(account, true, interactive);
 676						}
 677					}
 678				}
 679				if (mOnAccountUpdate != null) {
 680					mOnAccountUpdate.onAccountUpdate();
 681				}
 682			}
 683		}
 684		if (pingNow) {
 685			final boolean listeners = checkListeners();
 686			for (Account account : pingCandidates) {
 687				if (listeners
 688						&& Config.PUSH_MODE
 689						&& mPushManagementService.available(account)) {
 690					account.getXmppConnection().waitForPush();
 691					cancelWakeUpCall(account.getUuid().hashCode());
 692				} else {
 693					account.getXmppConnection().sendPing();
 694					Log.d(Config.LOGTAG, account.getJid().toBareJid() + " send ping (action=" + action + ",listeners="+Boolean.toString(listeners)+")");
 695					scheduleWakeUpCall(Config.PING_TIMEOUT, account.getUuid().hashCode());
 696				}
 697			}
 698		}
 699		if (wakeLock.isHeld()) {
 700			try {
 701				wakeLock.release();
 702			} catch (final RuntimeException ignored) {
 703			}
 704		}
 705		return START_STICKY;
 706	}
 707
 708	public boolean isDataSaverDisabled() {
 709		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 710			ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
 711			return !connectivityManager.isActiveNetworkMetered()
 712					|| connectivityManager.getRestrictBackgroundStatus() == ConnectivityManager.RESTRICT_BACKGROUND_STATUS_DISABLED;
 713		} else {
 714			return true;
 715		}
 716	}
 717
 718	private void directReply(Conversation conversation, String body, final boolean dismissAfterReply) {
 719		Message message = new Message(conversation,body,conversation.getNextEncryption());
 720		message.markUnread();
 721		if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 722			getPgpEngine().encrypt(message, new UiCallback<Message>() {
 723				@Override
 724				public void success(Message message) {
 725					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 726					sendMessage(message);
 727					if (dismissAfterReply) {
 728						markRead(message.getConversation(),true);
 729					} else {
 730						mNotificationService.pushFromDirectReply(message);
 731					}
 732				}
 733
 734				@Override
 735				public void error(int errorCode, Message object) {
 736
 737				}
 738
 739				@Override
 740				public void userInputRequried(PendingIntent pi, Message object) {
 741
 742				}
 743			});
 744		} else {
 745			sendMessage(message);
 746			if (dismissAfterReply) {
 747				markRead(conversation,true);
 748			} else {
 749				mNotificationService.pushFromDirectReply(message);
 750			}
 751		}
 752	}
 753
 754	private boolean xaOnSilentMode() {
 755		return getPreferences().getBoolean("xa_on_silent_mode", false);
 756	}
 757
 758	private boolean manuallyChangePresence() {
 759		return getPreferences().getBoolean("manually_change_presence", false);
 760	}
 761
 762	private boolean treatVibrateAsSilent() {
 763		return getPreferences().getBoolean("treat_vibrate_as_silent", false);
 764	}
 765
 766	private boolean awayWhenScreenOff() {
 767		return getPreferences().getBoolean("away_when_screen_off", false);
 768	}
 769
 770	private String getCompressPicturesPreference() {
 771		return getPreferences().getString("picture_compression", "auto");
 772	}
 773
 774	private Presence.Status getTargetPresence() {
 775		if (xaOnSilentMode() && isPhoneSilenced()) {
 776			return Presence.Status.XA;
 777		} else if (awayWhenScreenOff() && !isInteractive()) {
 778			return Presence.Status.AWAY;
 779		} else {
 780			return Presence.Status.ONLINE;
 781		}
 782	}
 783
 784	@SuppressLint("NewApi")
 785	@SuppressWarnings("deprecation")
 786	public boolean isInteractive() {
 787		final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 788
 789		final boolean isScreenOn;
 790		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
 791			isScreenOn = pm.isScreenOn();
 792		} else {
 793			isScreenOn = pm.isInteractive();
 794		}
 795		return isScreenOn;
 796	}
 797
 798	private boolean isPhoneSilenced() {
 799		AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
 800		try {
 801			if (treatVibrateAsSilent()) {
 802				return audioManager.getRingerMode() != AudioManager.RINGER_MODE_NORMAL;
 803			} else {
 804				return audioManager.getRingerMode() == AudioManager.RINGER_MODE_SILENT;
 805			}
 806		} catch (Throwable throwable) {
 807			Log.d(Config.LOGTAG,"platform bug in isPhoneSilenced ("+ throwable.getMessage()+")");
 808			return false;
 809		}
 810	}
 811
 812	private void resetAllAttemptCounts(boolean reallyAll) {
 813		Log.d(Config.LOGTAG, "resetting all attempt counts");
 814		for (Account account : accounts) {
 815			if (account.hasErrorStatus() || reallyAll) {
 816				final XmppConnection connection = account.getXmppConnection();
 817				if (connection != null) {
 818					connection.resetAttemptCount();
 819				}
 820			}
 821			if (account.setShowErrorNotification(true)) {
 822				databaseBackend.updateAccount(account);
 823			}
 824		}
 825		mNotificationService.updateErrorNotification();
 826	}
 827
 828	private void dismissErrorNotifications() {
 829		for (final Account account : this.accounts) {
 830			if (account.hasErrorStatus()) {
 831				Log.d(Config.LOGTAG,account.getJid().toBareJid()+": dismissing error notification");
 832				if (account.setShowErrorNotification(false)) {
 833					databaseBackend.updateAccount(account);
 834				}
 835			}
 836		}
 837	}
 838
 839	public boolean hasInternetConnection() {
 840		ConnectivityManager cm = (ConnectivityManager) getApplicationContext()
 841				.getSystemService(Context.CONNECTIVITY_SERVICE);
 842		NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 843		return activeNetwork != null && activeNetwork.isConnected();
 844	}
 845
 846	@SuppressLint("TrulyRandom")
 847	@Override
 848	public void onCreate() {
 849		ExceptionHelper.init(getApplicationContext());
 850		PRNGFixes.apply();
 851		this.mRandom = new SecureRandom();
 852		updateMemorizingTrustmanager();
 853		final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
 854		final int cacheSize = maxMemory / 8;
 855		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
 856			@Override
 857			protected int sizeOf(final String key, final Bitmap bitmap) {
 858				return bitmap.getByteCount() / 1024;
 859			}
 860		};
 861
 862		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 863		this.accounts = databaseBackend.getAccounts();
 864
 865		restoreFromDatabase();
 866
 867		getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 868		new Thread(new Runnable() {
 869			@Override
 870			public void run() {
 871				fileObserver.startWatching();
 872			}
 873		}).start();
 874		if (Config.supportOpenPgp()) {
 875			this.pgpServiceConnection = new OpenPgpServiceConnection(getApplicationContext(), "org.sufficientlysecure.keychain", new OpenPgpServiceConnection.OnBound() {
 876				@Override
 877				public void onBound(IOpenPgpService2 service) {
 878					for (Account account : accounts) {
 879						final PgpDecryptionService pgp = account.getPgpDecryptionService();
 880						if(pgp != null) {
 881							pgp.continueDecryption(true);
 882						}
 883					}
 884				}
 885
 886				@Override
 887				public void onError(Exception e) {
 888				}
 889			});
 890			this.pgpServiceConnection.bindToService();
 891		}
 892
 893		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 894		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "XmppConnectionService");
 895		toggleForegroundService();
 896		updateUnreadCountBadge();
 897		toggleScreenEventReceiver();
 898		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && !Config.PUSH_MODE) {
 899			scheduleNextIdlePing();
 900		}
 901		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 902			registerReceiver(this.mEventReceiver,new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
 903		}
 904	}
 905
 906	@Override
 907	public void onTrimMemory(int level) {
 908		super.onTrimMemory(level);
 909		if (level >= TRIM_MEMORY_COMPLETE) {
 910			Log.d(Config.LOGTAG, "clear cache due to low memory");
 911			getBitmapCache().evictAll();
 912		}
 913	}
 914
 915	@Override
 916	public void onDestroy() {
 917		try {
 918			unregisterReceiver(this.mEventReceiver);
 919		} catch (IllegalArgumentException e) {
 920			//ignored
 921		}
 922		fileObserver.stopWatching();
 923		super.onDestroy();
 924	}
 925
 926	public void toggleScreenEventReceiver() {
 927		if (awayWhenScreenOff() && !manuallyChangePresence()) {
 928			final IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);
 929			filter.addAction(Intent.ACTION_SCREEN_OFF);
 930			registerReceiver(this.mEventReceiver, filter);
 931		} else {
 932			try {
 933				unregisterReceiver(this.mEventReceiver);
 934			} catch (IllegalArgumentException e) {
 935				//ignored
 936			}
 937		}
 938	}
 939
 940	public void toggleForegroundService() {
 941		if (getPreferences().getBoolean("keep_foreground_service", false)) {
 942			startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, this.mNotificationService.createForegroundNotification());
 943		} else {
 944			stopForeground(true);
 945		}
 946	}
 947
 948	@Override
 949	public void onTaskRemoved(final Intent rootIntent) {
 950		super.onTaskRemoved(rootIntent);
 951		if (!getPreferences().getBoolean("keep_foreground_service", false)) {
 952			this.logoutAndSave(false);
 953		} else {
 954			Log.d(Config.LOGTAG,"ignoring onTaskRemoved because foreground service is activated");
 955		}
 956	}
 957
 958	private void logoutAndSave(boolean stop) {
 959		int activeAccounts = 0;
 960		for (final Account account : accounts) {
 961			if (account.getStatus() != Account.State.DISABLED) {
 962				activeAccounts++;
 963			}
 964			databaseBackend.writeRoster(account.getRoster());
 965			if (account.getXmppConnection() != null) {
 966				new Thread(new Runnable() {
 967					@Override
 968					public void run() {
 969						disconnect(account, false);
 970					}
 971				}).start();
 972			}
 973		}
 974		if (stop || activeAccounts == 0) {
 975			Log.d(Config.LOGTAG, "good bye");
 976			stopSelf();
 977		}
 978	}
 979
 980	private void cancelWakeUpCall(int requestCode) {
 981		final AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
 982		final Intent intent = new Intent(this, EventReceiver.class);
 983		intent.setAction("ping");
 984		alarmManager.cancel(PendingIntent.getBroadcast(this, requestCode, intent, 0));
 985	}
 986
 987	public void scheduleWakeUpCall(int seconds, int requestCode) {
 988		final long timeToWake = SystemClock.elapsedRealtime() + (seconds < 0 ? 1 : seconds + 1) * 1000;
 989		AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
 990		Intent intent = new Intent(this, EventReceiver.class);
 991		intent.setAction("ping");
 992		PendingIntent alarmIntent = PendingIntent.getBroadcast(this, requestCode, intent, 0);
 993		alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, alarmIntent);
 994	}
 995
 996	@TargetApi(Build.VERSION_CODES.M)
 997	private void scheduleNextIdlePing() {
 998		Log.d(Config.LOGTAG,"schedule next idle ping");
 999		AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
1000		Intent intent = new Intent(this, EventReceiver.class);
1001		intent.setAction(ACTION_IDLE_PING);
1002		alarmManager.setAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME_WAKEUP,
1003				SystemClock.elapsedRealtime()+(Config.IDLE_PING_INTERVAL * 1000),
1004				PendingIntent.getBroadcast(this,0,intent,0)
1005				);
1006	}
1007
1008	public XmppConnection createConnection(final Account account) {
1009		final SharedPreferences sharedPref = getPreferences();
1010		String resource;
1011		try {
1012			resource = sharedPref.getString("resource", getString(R.string.default_resource)).toLowerCase(Locale.ENGLISH);
1013			if (resource.trim().isEmpty()) {
1014				throw new Exception();
1015			}
1016		} catch (Exception e) {
1017			resource = "conversations";
1018		}
1019		account.setResource(resource);
1020		final XmppConnection connection = new XmppConnection(account, this);
1021		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
1022		connection.setOnStatusChangedListener(this.statusListener);
1023		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
1024		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
1025		connection.setOnJinglePacketReceivedListener(this.jingleListener);
1026		connection.setOnBindListener(this.mOnBindListener);
1027		connection.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
1028		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mMessageArchiveService);
1029		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mAvatarService);
1030		AxolotlService axolotlService = account.getAxolotlService();
1031		if (axolotlService != null) {
1032			connection.addOnAdvancedStreamFeaturesAvailableListener(axolotlService);
1033		}
1034		return connection;
1035	}
1036
1037	public void sendChatState(Conversation conversation) {
1038		if (sendChatStates()) {
1039			MessagePacket packet = mMessageGenerator.generateChatState(conversation);
1040			sendMessagePacket(conversation.getAccount(), packet);
1041		}
1042	}
1043
1044	private void sendFileMessage(final Message message, final boolean delay) {
1045		Log.d(Config.LOGTAG, "send file message");
1046		final Account account = message.getConversation().getAccount();
1047		if (account.httpUploadAvailable(fileBackend.getFile(message,false).getSize())) {
1048			mHttpConnectionManager.createNewUploadConnection(message, delay);
1049		} else {
1050			mJingleConnectionManager.createNewConnection(message);
1051		}
1052	}
1053
1054	public void sendMessage(final Message message) {
1055		sendMessage(message, false, false);
1056	}
1057
1058	private void sendMessage(final Message message, final boolean resend, final boolean delay) {
1059		final Account account = message.getConversation().getAccount();
1060		if (account.setShowErrorNotification(true)) {
1061			databaseBackend.updateAccount(account);
1062			mNotificationService.updateErrorNotification();
1063		}
1064		final Conversation conversation = message.getConversation();
1065		account.deactivateGracePeriod();
1066		MessagePacket packet = null;
1067		final boolean addToConversation = (conversation.getMode() != Conversation.MODE_MULTI
1068				|| account.getServerIdentity() != XmppConnection.Identity.SLACK)
1069				&& !message.edited();
1070		boolean saveInDb = addToConversation;
1071		message.setStatus(Message.STATUS_WAITING);
1072
1073		if (!resend && message.getEncryption() != Message.ENCRYPTION_OTR) {
1074			message.getConversation().endOtrIfNeeded();
1075			message.getConversation().findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR,
1076					new Conversation.OnMessageFound() {
1077						@Override
1078						public void onMessageFound(Message message) {
1079							markMessage(message, Message.STATUS_SEND_FAILED);
1080						}
1081					});
1082		}
1083
1084		if (account.isOnlineAndConnected()) {
1085			switch (message.getEncryption()) {
1086				case Message.ENCRYPTION_NONE:
1087					if (message.needsUploading()) {
1088						if (account.httpUploadAvailable(fileBackend.getFile(message,false).getSize())
1089								|| message.fixCounterpart()) {
1090							this.sendFileMessage(message, delay);
1091						} else {
1092							break;
1093						}
1094					} else {
1095						packet = mMessageGenerator.generateChat(message);
1096					}
1097					break;
1098				case Message.ENCRYPTION_PGP:
1099				case Message.ENCRYPTION_DECRYPTED:
1100					if (message.needsUploading()) {
1101						if (account.httpUploadAvailable(fileBackend.getFile(message,false).getSize())
1102								|| message.fixCounterpart()) {
1103							this.sendFileMessage(message, delay);
1104						} else {
1105							break;
1106						}
1107					} else {
1108						packet = mMessageGenerator.generatePgpChat(message);
1109					}
1110					break;
1111				case Message.ENCRYPTION_OTR:
1112					SessionImpl otrSession = conversation.getOtrSession();
1113					if (otrSession != null && otrSession.getSessionStatus() == SessionStatus.ENCRYPTED) {
1114						try {
1115							message.setCounterpart(Jid.fromSessionID(otrSession.getSessionID()));
1116						} catch (InvalidJidException e) {
1117							break;
1118						}
1119						if (message.needsUploading()) {
1120							mJingleConnectionManager.createNewConnection(message);
1121						} else {
1122							packet = mMessageGenerator.generateOtrChat(message);
1123						}
1124					} else if (otrSession == null) {
1125						if (message.fixCounterpart()) {
1126							conversation.startOtrSession(message.getCounterpart().getResourcepart(), true);
1127						} else {
1128							Log.d(Config.LOGTAG,account.getJid().toBareJid()+": could not fix counterpart for OTR message to contact "+message.getContact().getJid());
1129							break;
1130						}
1131					} else {
1132						Log.d(Config.LOGTAG,account.getJid().toBareJid()+" OTR session with "+message.getContact()+" is in wrong state: "+otrSession.getSessionStatus().toString());
1133					}
1134					break;
1135				case Message.ENCRYPTION_AXOLOTL:
1136					message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
1137					if (message.needsUploading()) {
1138						if (account.httpUploadAvailable(fileBackend.getFile(message,false).getSize())
1139								|| message.fixCounterpart()) {
1140							this.sendFileMessage(message, delay);
1141						} else {
1142							break;
1143						}
1144					} else {
1145						XmppAxolotlMessage axolotlMessage = account.getAxolotlService().fetchAxolotlMessageFromCache(message);
1146						if (axolotlMessage == null) {
1147							account.getAxolotlService().preparePayloadMessage(message, delay);
1148						} else {
1149							packet = mMessageGenerator.generateAxolotlChat(message, axolotlMessage);
1150						}
1151					}
1152					break;
1153
1154			}
1155			if (packet != null) {
1156				if (account.getXmppConnection().getFeatures().sm()
1157						|| (conversation.getMode() == Conversation.MODE_MULTI && message.getCounterpart().isBareJid())) {
1158					message.setStatus(Message.STATUS_UNSEND);
1159				} else {
1160					message.setStatus(Message.STATUS_SEND);
1161				}
1162			}
1163		} else {
1164			switch (message.getEncryption()) {
1165				case Message.ENCRYPTION_DECRYPTED:
1166					if (!message.needsUploading()) {
1167						String pgpBody = message.getEncryptedBody();
1168						String decryptedBody = message.getBody();
1169						message.setBody(pgpBody);
1170						message.setEncryption(Message.ENCRYPTION_PGP);
1171						if (message.edited()) {
1172							message.setBody(decryptedBody);
1173							message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1174							databaseBackend.updateMessage(message, message.getEditedId());
1175							updateConversationUi();
1176							return;
1177						} else {
1178							databaseBackend.createMessage(message);
1179							saveInDb = false;
1180							message.setBody(decryptedBody);
1181							message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1182						}
1183					}
1184					break;
1185				case Message.ENCRYPTION_OTR:
1186					if (!conversation.hasValidOtrSession() && message.getCounterpart() != null) {
1187						Log.d(Config.LOGTAG,account.getJid().toBareJid()+": create otr session without starting for "+message.getContact().getJid());
1188						conversation.startOtrSession(message.getCounterpart().getResourcepart(), false);
1189					}
1190					break;
1191				case Message.ENCRYPTION_AXOLOTL:
1192					message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
1193					break;
1194			}
1195		}
1196
1197		if (resend) {
1198			if (packet != null && addToConversation) {
1199				if (account.getXmppConnection().getFeatures().sm()
1200						|| (conversation.getMode() == Conversation.MODE_MULTI && message.getCounterpart().isBareJid())) {
1201					markMessage(message, Message.STATUS_UNSEND);
1202				} else {
1203					markMessage(message, Message.STATUS_SEND);
1204				}
1205			}
1206		} else {
1207			if (addToConversation) {
1208				conversation.add(message);
1209			}
1210			if (message.getEncryption() == Message.ENCRYPTION_NONE || saveEncryptedMessages()) {
1211				if (saveInDb) {
1212					databaseBackend.createMessage(message);
1213				} else if (message.edited()) {
1214					databaseBackend.updateMessage(message, message.getEditedId());
1215				}
1216			}
1217			updateConversationUi();
1218		}
1219		if (packet != null) {
1220			if (delay) {
1221				mMessageGenerator.addDelay(packet, message.getTimeSent());
1222			}
1223			if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1224				if (this.sendChatStates()) {
1225					packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
1226				}
1227			}
1228			sendMessagePacket(account, packet);
1229		}
1230	}
1231
1232	private void sendUnsentMessages(final Conversation conversation) {
1233		conversation.findWaitingMessages(new Conversation.OnMessageFound() {
1234
1235			@Override
1236			public void onMessageFound(Message message) {
1237				resendMessage(message, true);
1238			}
1239		});
1240	}
1241
1242	public void resendMessage(final Message message, final boolean delay) {
1243		sendMessage(message, true, delay);
1244	}
1245
1246	public void fetchRosterFromServer(final Account account) {
1247		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1248		if (!"".equals(account.getRosterVersion())) {
1249			Log.d(Config.LOGTAG, account.getJid().toBareJid()
1250					+ ": fetching roster version " + account.getRosterVersion());
1251		} else {
1252			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching roster");
1253		}
1254		iqPacket.query(Xmlns.ROSTER).setAttribute("ver", account.getRosterVersion());
1255		sendIqPacket(account, iqPacket, mIqParser);
1256	}
1257
1258	public void fetchBookmarks(final Account account) {
1259		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1260		final Element query = iqPacket.query("jabber:iq:private");
1261		query.addChild("storage", "storage:bookmarks");
1262		final OnIqPacketReceived callback = new OnIqPacketReceived() {
1263
1264			@Override
1265			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1266				if (packet.getType() == IqPacket.TYPE.RESULT) {
1267					final Element query = packet.query();
1268					final HashMap<Jid, Bookmark> bookmarks = new HashMap<>();
1269					final Element storage = query.findChild("storage", "storage:bookmarks");
1270					final boolean autojoin = respectAutojoin();
1271					if (storage != null) {
1272						for (final Element item : storage.getChildren()) {
1273							if (item.getName().equals("conference")) {
1274								final Bookmark bookmark = Bookmark.parse(item, account);
1275								Bookmark old = bookmarks.put(bookmark.getJid(), bookmark);
1276								if (old != null && old.getBookmarkName() != null && bookmark.getBookmarkName() == null) {
1277									bookmark.setBookmarkName(old.getBookmarkName());
1278								}
1279								Conversation conversation = find(bookmark);
1280								if (conversation != null) {
1281									conversation.setBookmark(bookmark);
1282								} else if (bookmark.autojoin() && bookmark.getJid() != null && autojoin) {
1283									conversation = findOrCreateConversation(
1284											account, bookmark.getJid(), true);
1285									conversation.setBookmark(bookmark);
1286									joinMuc(conversation);
1287								}
1288							}
1289						}
1290					}
1291					account.setBookmarks(new ArrayList<>(bookmarks.values()));
1292				} else {
1293					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not fetch bookmarks");
1294				}
1295			}
1296		};
1297		sendIqPacket(account, iqPacket, callback);
1298	}
1299
1300	public void pushBookmarks(Account account) {
1301		Log.d(Config.LOGTAG, account.getJid().toBareJid()+": pushing bookmarks");
1302		IqPacket iqPacket = new IqPacket(IqPacket.TYPE.SET);
1303		Element query = iqPacket.query("jabber:iq:private");
1304		Element storage = query.addChild("storage", "storage:bookmarks");
1305		for (Bookmark bookmark : account.getBookmarks()) {
1306			storage.addChild(bookmark);
1307		}
1308		sendIqPacket(account, iqPacket, mDefaultIqHandler);
1309	}
1310
1311	private void restoreFromDatabase() {
1312		synchronized (this.conversations) {
1313			final Map<String, Account> accountLookupTable = new Hashtable<>();
1314			for (Account account : this.accounts) {
1315				accountLookupTable.put(account.getUuid(), account);
1316			}
1317			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
1318			for (Conversation conversation : this.conversations) {
1319				Account account = accountLookupTable.get(conversation.getAccountUuid());
1320				conversation.setAccount(account);
1321			}
1322			Runnable runnable = new Runnable() {
1323				@Override
1324				public void run() {
1325					Log.d(Config.LOGTAG, "restoring roster");
1326					for (Account account : accounts) {
1327						databaseBackend.readRoster(account.getRoster());
1328						account.initAccountServices(XmppConnectionService.this); //roster needs to be loaded at this stage
1329					}
1330					getBitmapCache().evictAll();
1331					loadPhoneContacts();
1332					Log.d(Config.LOGTAG, "restoring messages");
1333					for (Conversation conversation : conversations) {
1334						conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1335						checkDeletedFiles(conversation);
1336						conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
1337
1338							@Override
1339							public void onMessageFound(Message message) {
1340								markMessage(message, Message.STATUS_WAITING);
1341							}
1342						});
1343						conversation.findUnreadMessages(new Conversation.OnMessageFound() {
1344							@Override
1345							public void onMessageFound(Message message) {
1346								mNotificationService.pushFromBacklog(message);
1347							}
1348						});
1349					}
1350					mNotificationService.finishBacklog(false);
1351					mRestoredFromDatabase = true;
1352					Log.d(Config.LOGTAG, "restored all messages");
1353					updateConversationUi();
1354				}
1355			};
1356			mDatabaseExecutor.execute(runnable);
1357		}
1358	}
1359
1360	public void loadPhoneContacts() {
1361		mContactMergerExecutor.execute(new Runnable() {
1362			@Override
1363			public void run() {
1364				PhoneHelper.loadPhoneContacts(XmppConnectionService.this, new OnPhoneContactsLoadedListener() {
1365					@Override
1366					public void onPhoneContactsLoaded(List<Bundle> phoneContacts) {
1367						Log.d(Config.LOGTAG, "start merging phone contacts with roster");
1368						for (Account account : accounts) {
1369							List<Contact> withSystemAccounts = account.getRoster().getWithSystemAccounts();
1370							for (Bundle phoneContact : phoneContacts) {
1371								Jid jid;
1372								try {
1373									jid = Jid.fromString(phoneContact.getString("jid"));
1374								} catch (final InvalidJidException e) {
1375									continue;
1376								}
1377								final Contact contact = account.getRoster().getContact(jid);
1378								String systemAccount = phoneContact.getInt("phoneid")
1379										+ "#"
1380										+ phoneContact.getString("lookup");
1381								contact.setSystemAccount(systemAccount);
1382								if (contact.setPhotoUri(phoneContact.getString("photouri"))) {
1383									getAvatarService().clear(contact);
1384								}
1385								contact.setSystemName(phoneContact.getString("displayname"));
1386								withSystemAccounts.remove(contact);
1387							}
1388							for (Contact contact : withSystemAccounts) {
1389								contact.setSystemAccount(null);
1390								contact.setSystemName(null);
1391								if (contact.setPhotoUri(null)) {
1392									getAvatarService().clear(contact);
1393								}
1394							}
1395						}
1396						Log.d(Config.LOGTAG, "finished merging phone contacts");
1397						updateAccountUi();
1398					}
1399				});
1400			}
1401		});
1402	}
1403
1404	public List<Conversation> getConversations() {
1405		return this.conversations;
1406	}
1407
1408	private void checkDeletedFiles(Conversation conversation) {
1409		conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1410
1411			@Override
1412			public void onMessageFound(Message message) {
1413				if (!getFileBackend().isFileAvailable(message)) {
1414					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1415					final int s = message.getStatus();
1416					if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1417						markMessage(message, Message.STATUS_SEND_FAILED);
1418					}
1419				}
1420			}
1421		});
1422	}
1423
1424	private void markFileDeleted(final String path) {
1425		Log.d(Config.LOGTAG,"deleted file "+path);
1426		for (Conversation conversation : getConversations()) {
1427			conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1428				@Override
1429				public void onMessageFound(Message message) {
1430					DownloadableFile file = fileBackend.getFile(message);
1431					if (file.getAbsolutePath().equals(path)) {
1432						if (!file.exists()) {
1433							message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1434							final int s = message.getStatus();
1435							if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1436								markMessage(message, Message.STATUS_SEND_FAILED);
1437							} else {
1438								updateConversationUi();
1439							}
1440						} else {
1441							Log.d(Config.LOGTAG,"found matching message for file "+path+" but file still exists");
1442						}
1443					}
1444				}
1445			});
1446		}
1447	}
1448
1449	public void populateWithOrderedConversations(final List<Conversation> list) {
1450		populateWithOrderedConversations(list, true);
1451	}
1452
1453	public void populateWithOrderedConversations(final List<Conversation> list, boolean includeNoFileUpload) {
1454		list.clear();
1455		if (includeNoFileUpload) {
1456			list.addAll(getConversations());
1457		} else {
1458			for (Conversation conversation : getConversations()) {
1459				if (conversation.getMode() == Conversation.MODE_SINGLE
1460						|| conversation.getAccount().httpUploadAvailable()) {
1461					list.add(conversation);
1462				}
1463			}
1464		}
1465		try {
1466			Collections.sort(list);
1467		} catch (IllegalArgumentException e) {
1468			//ignore
1469		}
1470	}
1471
1472	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
1473		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation, callback)) {
1474			return;
1475		} else if (timestamp == 0) {
1476			return;
1477		}
1478		Log.d(Config.LOGTAG, "load more messages for " + conversation.getName() + " prior to " + MessageGenerator.getTimestamp(timestamp));
1479		Runnable runnable = new Runnable() {
1480			@Override
1481			public void run() {
1482				final Account account = conversation.getAccount();
1483				List<Message> messages = databaseBackend.getMessages(conversation, 50, timestamp);
1484				if (messages.size() > 0) {
1485					conversation.addAll(0, messages);
1486					checkDeletedFiles(conversation);
1487					callback.onMoreMessagesLoaded(messages.size(), conversation);
1488				} else if (conversation.hasMessagesLeftOnServer()
1489						&& account.isOnlineAndConnected()
1490						&& conversation.getLastClearHistory() == 0) {
1491					if ((conversation.getMode() == Conversation.MODE_SINGLE && account.getXmppConnection().getFeatures().mam())
1492							|| (conversation.getMode() == Conversation.MODE_MULTI && conversation.getMucOptions().mamSupport())) {
1493						MessageArchiveService.Query query = getMessageArchiveService().query(conversation, 0, timestamp);
1494						if (query != null) {
1495							query.setCallback(callback);
1496						}
1497						callback.informUser(R.string.fetching_history_from_server);
1498					}
1499				}
1500			}
1501		};
1502		mDatabaseExecutor.execute(runnable);
1503	}
1504
1505	public List<Account> getAccounts() {
1506		return this.accounts;
1507	}
1508
1509	public List<Conversation> findAllConferencesWith(Contact contact) {
1510		ArrayList<Conversation> results = new ArrayList<>();
1511		for(Conversation conversation : conversations) {
1512			if (conversation.getMode() == Conversation.MODE_MULTI
1513					&& conversation.getMucOptions().isContactInRoom(contact)) {
1514				results.add(conversation);
1515			}
1516		}
1517		return results;
1518	}
1519
1520	public Conversation find(final Iterable<Conversation> haystack, final Contact contact) {
1521		for (final Conversation conversation : haystack) {
1522			if (conversation.getContact() == contact) {
1523				return conversation;
1524			}
1525		}
1526		return null;
1527	}
1528
1529	public Conversation find(final Iterable<Conversation> haystack, final Account account, final Jid jid) {
1530		if (jid == null) {
1531			return null;
1532		}
1533		for (final Conversation conversation : haystack) {
1534			if ((account == null || conversation.getAccount() == account)
1535					&& (conversation.getJid().toBareJid().equals(jid.toBareJid()))) {
1536				return conversation;
1537			}
1538		}
1539		return null;
1540	}
1541
1542	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc) {
1543		return this.findOrCreateConversation(account, jid, muc, null);
1544	}
1545
1546	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final MessageArchiveService.Query query) {
1547		synchronized (this.conversations) {
1548			Conversation conversation = find(account, jid);
1549			if (conversation != null) {
1550				return conversation;
1551			}
1552			conversation = databaseBackend.findConversation(account, jid);
1553			if (conversation != null) {
1554				conversation.setStatus(Conversation.STATUS_AVAILABLE);
1555				conversation.setAccount(account);
1556				if (muc) {
1557					conversation.setMode(Conversation.MODE_MULTI);
1558					conversation.setContactJid(jid);
1559				} else {
1560					conversation.setMode(Conversation.MODE_SINGLE);
1561					conversation.setContactJid(jid.toBareJid());
1562				}
1563				conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1564				this.databaseBackend.updateConversation(conversation);
1565			} else {
1566				String conversationName;
1567				Contact contact = account.getRoster().getContact(jid);
1568				if (contact != null) {
1569					conversationName = contact.getDisplayName();
1570				} else {
1571					conversationName = jid.getLocalpart();
1572				}
1573				if (muc) {
1574					conversation = new Conversation(conversationName, account, jid,
1575							Conversation.MODE_MULTI);
1576				} else {
1577					conversation = new Conversation(conversationName, account, jid.toBareJid(),
1578							Conversation.MODE_SINGLE);
1579				}
1580				this.databaseBackend.createConversation(conversation);
1581			}
1582			if (account.getXmppConnection() != null
1583					&& account.getXmppConnection().getFeatures().mam()
1584					&& !muc) {
1585				if (query == null) {
1586					this.mMessageArchiveService.query(conversation);
1587				} else {
1588					if (query.getConversation() == null) {
1589						this.mMessageArchiveService.query(conversation, query.getStart());
1590					}
1591				}
1592			}
1593			checkDeletedFiles(conversation);
1594			this.conversations.add(conversation);
1595			updateConversationUi();
1596			return conversation;
1597		}
1598	}
1599
1600	public void archiveConversation(Conversation conversation) {
1601		getNotificationService().clear(conversation);
1602		conversation.setStatus(Conversation.STATUS_ARCHIVED);
1603		synchronized (this.conversations) {
1604			if (conversation.getMode() == Conversation.MODE_MULTI) {
1605				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1606					Bookmark bookmark = conversation.getBookmark();
1607					if (bookmark != null && bookmark.autojoin() && respectAutojoin()) {
1608						bookmark.setAutojoin(false);
1609						pushBookmarks(bookmark.getAccount());
1610					}
1611				}
1612				leaveMuc(conversation);
1613			} else {
1614				conversation.endOtrIfNeeded();
1615				if (conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1616					Log.d(Config.LOGTAG, "Canceling presence request from " + conversation.getJid().toString());
1617					sendPresencePacket(
1618							conversation.getAccount(),
1619							mPresenceGenerator.stopPresenceUpdatesTo(conversation.getContact())
1620					);
1621				}
1622			}
1623			updateConversation(conversation);
1624			this.conversations.remove(conversation);
1625			updateConversationUi();
1626		}
1627	}
1628
1629	public void createAccount(final Account account) {
1630		account.initAccountServices(this);
1631		databaseBackend.createAccount(account);
1632		this.accounts.add(account);
1633		this.reconnectAccountInBackground(account);
1634		updateAccountUi();
1635	}
1636
1637	public void createAccountFromKey(final String alias, final OnAccountCreated callback) {
1638		new Thread(new Runnable() {
1639			@Override
1640			public void run() {
1641				try {
1642					X509Certificate[] chain = KeyChain.getCertificateChain(XmppConnectionService.this, alias);
1643					Pair<Jid, String> info = CryptoHelper.extractJidAndName(chain[0]);
1644					if (findAccountByJid(info.first) == null) {
1645						Account account = new Account(info.first, "");
1646						account.setPrivateKeyAlias(alias);
1647						account.setOption(Account.OPTION_DISABLED, true);
1648						account.setDisplayName(info.second);
1649						createAccount(account);
1650						callback.onAccountCreated(account);
1651						if (Config.X509_VERIFICATION) {
1652							try {
1653								getMemorizingTrustManager().getNonInteractive().checkClientTrusted(chain, "RSA");
1654							} catch (CertificateException e) {
1655								callback.informUser(R.string.certificate_chain_is_not_trusted);
1656							}
1657						}
1658					} else {
1659						callback.informUser(R.string.account_already_exists);
1660					}
1661				} catch (Exception e) {
1662					e.printStackTrace();
1663					callback.informUser(R.string.unable_to_parse_certificate);
1664				}
1665			}
1666		}).start();
1667
1668	}
1669
1670	public void updateKeyInAccount(final Account account, final String alias) {
1671		Log.d(Config.LOGTAG, "update key in account " + alias);
1672		try {
1673			X509Certificate[] chain = KeyChain.getCertificateChain(XmppConnectionService.this, alias);
1674			Pair<Jid, String> info = CryptoHelper.extractJidAndName(chain[0]);
1675			if (account.getJid().toBareJid().equals(info.first)) {
1676				account.setPrivateKeyAlias(alias);
1677				account.setDisplayName(info.second);
1678				databaseBackend.updateAccount(account);
1679				if (Config.X509_VERIFICATION) {
1680					try {
1681						getMemorizingTrustManager().getNonInteractive().checkClientTrusted(chain, "RSA");
1682					} catch (CertificateException e) {
1683						showErrorToastInUi(R.string.certificate_chain_is_not_trusted);
1684					}
1685					account.getAxolotlService().regenerateKeys(true);
1686				}
1687			} else {
1688				showErrorToastInUi(R.string.jid_does_not_match_certificate);
1689			}
1690		} catch (Exception e) {
1691			e.printStackTrace();
1692		}
1693	}
1694
1695	public boolean updateAccount(final Account account) {
1696		if (databaseBackend.updateAccount(account)) {
1697			account.setShowErrorNotification(true);
1698			this.statusListener.onStatusChanged(account);
1699			databaseBackend.updateAccount(account);
1700			reconnectAccountInBackground(account);
1701			updateAccountUi();
1702			getNotificationService().updateErrorNotification();
1703			return true;
1704		} else {
1705			return false;
1706		}
1707	}
1708
1709	public void updateAccountPasswordOnServer(final Account account, final String newPassword, final OnAccountPasswordChanged callback) {
1710		final IqPacket iq = getIqGenerator().generateSetPassword(account, newPassword);
1711		sendIqPacket(account, iq, new OnIqPacketReceived() {
1712			@Override
1713			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1714				if (packet.getType() == IqPacket.TYPE.RESULT) {
1715					account.setPassword(newPassword);
1716					account.setOption(Account.OPTION_MAGIC_CREATE, false);
1717					databaseBackend.updateAccount(account);
1718					callback.onPasswordChangeSucceeded();
1719				} else {
1720					callback.onPasswordChangeFailed();
1721				}
1722			}
1723		});
1724	}
1725
1726	public void deleteAccount(final Account account) {
1727		synchronized (this.conversations) {
1728			for (final Conversation conversation : conversations) {
1729				if (conversation.getAccount() == account) {
1730					if (conversation.getMode() == Conversation.MODE_MULTI) {
1731						leaveMuc(conversation);
1732					} else if (conversation.getMode() == Conversation.MODE_SINGLE) {
1733						conversation.endOtrIfNeeded();
1734					}
1735					conversations.remove(conversation);
1736				}
1737			}
1738			if (account.getXmppConnection() != null) {
1739				new Thread(new Runnable() {
1740					@Override
1741					public void run() {
1742						disconnect(account, true);
1743					}
1744				}).start();
1745			}
1746			Runnable runnable = new Runnable() {
1747				@Override
1748				public void run() {
1749					if (!databaseBackend.deleteAccount(account)) {
1750						Log.d(Config.LOGTAG,account.getJid().toBareJid()+": unable to delete account");
1751					}
1752				}
1753			};
1754			mDatabaseExecutor.execute(runnable);
1755			this.accounts.remove(account);
1756			updateAccountUi();
1757			getNotificationService().updateErrorNotification();
1758		}
1759	}
1760
1761	public void setOnConversationListChangedListener(OnConversationUpdate listener) {
1762		synchronized (this) {
1763			this.mLastActivity = System.currentTimeMillis();
1764			if (checkListeners()) {
1765				switchToForeground();
1766			}
1767			this.mOnConversationUpdate = listener;
1768			this.mNotificationService.setIsInForeground(true);
1769			if (this.convChangedListenerCount < 2) {
1770				this.convChangedListenerCount++;
1771			}
1772		}
1773	}
1774
1775	public void removeOnConversationListChangedListener() {
1776		synchronized (this) {
1777			this.convChangedListenerCount--;
1778			if (this.convChangedListenerCount <= 0) {
1779				this.convChangedListenerCount = 0;
1780				this.mOnConversationUpdate = null;
1781				this.mNotificationService.setIsInForeground(false);
1782				if (checkListeners()) {
1783					switchToBackground();
1784				}
1785			}
1786		}
1787	}
1788
1789	public void setOnShowErrorToastListener(OnShowErrorToast onShowErrorToast) {
1790		synchronized (this) {
1791			if (checkListeners()) {
1792				switchToForeground();
1793			}
1794			this.mOnShowErrorToast = onShowErrorToast;
1795			if (this.showErrorToastListenerCount < 2) {
1796				this.showErrorToastListenerCount++;
1797			}
1798		}
1799		this.mOnShowErrorToast = onShowErrorToast;
1800	}
1801
1802	public void removeOnShowErrorToastListener() {
1803		synchronized (this) {
1804			this.showErrorToastListenerCount--;
1805			if (this.showErrorToastListenerCount <= 0) {
1806				this.showErrorToastListenerCount = 0;
1807				this.mOnShowErrorToast = null;
1808				if (checkListeners()) {
1809					switchToBackground();
1810				}
1811			}
1812		}
1813	}
1814
1815	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
1816		synchronized (this) {
1817			if (checkListeners()) {
1818				switchToForeground();
1819			}
1820			this.mOnAccountUpdate = listener;
1821			if (this.accountChangedListenerCount < 2) {
1822				this.accountChangedListenerCount++;
1823			}
1824		}
1825	}
1826
1827	public void removeOnAccountListChangedListener() {
1828		synchronized (this) {
1829			this.accountChangedListenerCount--;
1830			if (this.accountChangedListenerCount <= 0) {
1831				this.mOnAccountUpdate = null;
1832				this.accountChangedListenerCount = 0;
1833				if (checkListeners()) {
1834					switchToBackground();
1835				}
1836			}
1837		}
1838	}
1839
1840	public void setOnCaptchaRequestedListener(OnCaptchaRequested listener) {
1841		synchronized (this) {
1842			if (checkListeners()) {
1843				switchToForeground();
1844			}
1845			this.mOnCaptchaRequested = listener;
1846			if (this.captchaRequestedListenerCount < 2) {
1847				this.captchaRequestedListenerCount++;
1848			}
1849		}
1850	}
1851
1852	public void removeOnCaptchaRequestedListener() {
1853		synchronized (this) {
1854			this.captchaRequestedListenerCount--;
1855			if (this.captchaRequestedListenerCount <= 0) {
1856				this.mOnCaptchaRequested = null;
1857				this.captchaRequestedListenerCount = 0;
1858				if (checkListeners()) {
1859					switchToBackground();
1860				}
1861			}
1862		}
1863	}
1864
1865	public void setOnRosterUpdateListener(final OnRosterUpdate listener) {
1866		synchronized (this) {
1867			if (checkListeners()) {
1868				switchToForeground();
1869			}
1870			this.mOnRosterUpdate = listener;
1871			if (this.rosterChangedListenerCount < 2) {
1872				this.rosterChangedListenerCount++;
1873			}
1874		}
1875	}
1876
1877	public void removeOnRosterUpdateListener() {
1878		synchronized (this) {
1879			this.rosterChangedListenerCount--;
1880			if (this.rosterChangedListenerCount <= 0) {
1881				this.rosterChangedListenerCount = 0;
1882				this.mOnRosterUpdate = null;
1883				if (checkListeners()) {
1884					switchToBackground();
1885				}
1886			}
1887		}
1888	}
1889
1890	public void setOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
1891		synchronized (this) {
1892			if (checkListeners()) {
1893				switchToForeground();
1894			}
1895			this.mOnUpdateBlocklist = listener;
1896			if (this.updateBlocklistListenerCount < 2) {
1897				this.updateBlocklistListenerCount++;
1898			}
1899		}
1900	}
1901
1902	public void removeOnUpdateBlocklistListener() {
1903		synchronized (this) {
1904			this.updateBlocklistListenerCount--;
1905			if (this.updateBlocklistListenerCount <= 0) {
1906				this.updateBlocklistListenerCount = 0;
1907				this.mOnUpdateBlocklist = null;
1908				if (checkListeners()) {
1909					switchToBackground();
1910				}
1911			}
1912		}
1913	}
1914
1915	public void setOnKeyStatusUpdatedListener(final OnKeyStatusUpdated listener) {
1916		synchronized (this) {
1917			if (checkListeners()) {
1918				switchToForeground();
1919			}
1920			this.mOnKeyStatusUpdated = listener;
1921			if (this.keyStatusUpdatedListenerCount < 2) {
1922				this.keyStatusUpdatedListenerCount++;
1923			}
1924		}
1925	}
1926
1927	public void removeOnNewKeysAvailableListener() {
1928		synchronized (this) {
1929			this.keyStatusUpdatedListenerCount--;
1930			if (this.keyStatusUpdatedListenerCount <= 0) {
1931				this.keyStatusUpdatedListenerCount = 0;
1932				this.mOnKeyStatusUpdated = null;
1933				if (checkListeners()) {
1934					switchToBackground();
1935				}
1936			}
1937		}
1938	}
1939
1940	public void setOnMucRosterUpdateListener(OnMucRosterUpdate listener) {
1941		synchronized (this) {
1942			if (checkListeners()) {
1943				switchToForeground();
1944			}
1945			this.mOnMucRosterUpdate = listener;
1946			if (this.mucRosterChangedListenerCount < 2) {
1947				this.mucRosterChangedListenerCount++;
1948			}
1949		}
1950	}
1951
1952	public void removeOnMucRosterUpdateListener() {
1953		synchronized (this) {
1954			this.mucRosterChangedListenerCount--;
1955			if (this.mucRosterChangedListenerCount <= 0) {
1956				this.mucRosterChangedListenerCount = 0;
1957				this.mOnMucRosterUpdate = null;
1958				if (checkListeners()) {
1959					switchToBackground();
1960				}
1961			}
1962		}
1963	}
1964
1965	public boolean checkListeners() {
1966		return (this.mOnAccountUpdate == null
1967				&& this.mOnConversationUpdate == null
1968				&& this.mOnRosterUpdate == null
1969				&& this.mOnCaptchaRequested == null
1970				&& this.mOnUpdateBlocklist == null
1971				&& this.mOnShowErrorToast == null
1972				&& this.mOnKeyStatusUpdated == null);
1973	}
1974
1975	private void switchToForeground() {
1976		final boolean broadcastLastActivity = broadcastLastActivity();
1977		for (Conversation conversation : getConversations()) {
1978			conversation.setIncomingChatState(ChatState.ACTIVE);
1979		}
1980		for (Account account : getAccounts()) {
1981			if (account.getStatus() == Account.State.ONLINE) {
1982				account.deactivateGracePeriod();
1983				final XmppConnection connection = account.getXmppConnection();
1984				if (connection != null ) {
1985					if (connection.getFeatures().csi()) {
1986						connection.sendActive();
1987					}
1988					if (broadcastLastActivity) {
1989						sendPresence(account, false); //send new presence but don't include idle because we are not
1990					}
1991				}
1992			}
1993		}
1994		Log.d(Config.LOGTAG, "app switched into foreground");
1995	}
1996
1997	private void switchToBackground() {
1998		final boolean broadcastLastActivity = broadcastLastActivity();
1999		for (Account account : getAccounts()) {
2000			if (account.getStatus() == Account.State.ONLINE) {
2001				XmppConnection connection = account.getXmppConnection();
2002				if (connection != null) {
2003					if (broadcastLastActivity) {
2004						sendPresence(account, broadcastLastActivity);
2005					}
2006					if (connection.getFeatures().csi()) {
2007						connection.sendInactive();
2008					}
2009					if (Config.PUSH_MODE && mPushManagementService.available(account)) {
2010						connection.waitForPush();
2011						cancelWakeUpCall(account.getUuid().hashCode());
2012					}
2013				}
2014			}
2015		}
2016		this.mNotificationService.setIsInForeground(false);
2017		Log.d(Config.LOGTAG, "app switched into background");
2018	}
2019
2020	private void connectMultiModeConversations(Account account) {
2021		List<Conversation> conversations = getConversations();
2022		for (Conversation conversation : conversations) {
2023			if (conversation.getMode() == Conversation.MODE_MULTI && conversation.getAccount() == account) {
2024				joinMuc(conversation);
2025			}
2026		}
2027	}
2028
2029	public void joinMuc(Conversation conversation) {
2030		joinMuc(conversation, null);
2031	}
2032
2033	private void joinMuc(Conversation conversation, final OnConferenceJoined onConferenceJoined) {
2034		Account account = conversation.getAccount();
2035		account.pendingConferenceJoins.remove(conversation);
2036		account.pendingConferenceLeaves.remove(conversation);
2037		if (account.getStatus() == Account.State.ONLINE) {
2038			conversation.resetMucOptions();
2039			if (onConferenceJoined != null) {
2040				conversation.getMucOptions().flagNoAutoPushConfiguration();
2041			}
2042			conversation.setHasMessagesLeftOnServer(false);
2043			fetchConferenceConfiguration(conversation, new OnConferenceConfigurationFetched() {
2044
2045				private void join(Conversation conversation) {
2046					Account account = conversation.getAccount();
2047					final MucOptions mucOptions = conversation.getMucOptions();
2048					final Jid joinJid = mucOptions.getSelf().getFullJid();
2049					Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": joining conversation " + joinJid.toString());
2050					PresencePacket packet = mPresenceGenerator.selfPresence(account, Presence.Status.ONLINE, mucOptions.nonanonymous());
2051					packet.setTo(joinJid);
2052					Element x = packet.addChild("x", "http://jabber.org/protocol/muc");
2053					if (conversation.getMucOptions().getPassword() != null) {
2054						x.addChild("password").setContent(mucOptions.getPassword());
2055					}
2056
2057					if (mucOptions.mamSupport()) {
2058						// Use MAM instead of the limited muc history to get history
2059						x.addChild("history").setAttribute("maxchars", "0");
2060					} else {
2061						// Fallback to muc history
2062						x.addChild("history").setAttribute("since", PresenceGenerator.getTimestamp(conversation.getLastMessageTransmitted()));
2063					}
2064					sendPresencePacket(account, packet);
2065					if (onConferenceJoined != null) {
2066						onConferenceJoined.onConferenceJoined(conversation);
2067					}
2068					if (!joinJid.equals(conversation.getJid())) {
2069						conversation.setContactJid(joinJid);
2070						databaseBackend.updateConversation(conversation);
2071					}
2072
2073					if (mucOptions.mamSupport()) {
2074						getMessageArchiveService().catchupMUC(conversation);
2075					}
2076					if (mucOptions.membersOnly() && mucOptions.nonanonymous()) {
2077						fetchConferenceMembers(conversation);
2078					}
2079					sendUnsentMessages(conversation);
2080				}
2081
2082				@Override
2083				public void onConferenceConfigurationFetched(Conversation conversation) {
2084					join(conversation);
2085				}
2086
2087				@Override
2088				public void onFetchFailed(final Conversation conversation, Element error) {
2089					if (error != null && "remote-server-not-found".equals(error.getName())) {
2090						conversation.getMucOptions().setError(MucOptions.Error.SERVER_NOT_FOUND);
2091					} else {
2092						join(conversation);
2093						fetchConferenceConfiguration(conversation);
2094					}
2095				}
2096			});
2097			updateConversationUi();
2098		} else {
2099			account.pendingConferenceJoins.add(conversation);
2100			conversation.resetMucOptions();
2101			conversation.setHasMessagesLeftOnServer(false);
2102			updateConversationUi();
2103		}
2104	}
2105
2106	private void fetchConferenceMembers(final Conversation conversation) {
2107		final Account account = conversation.getAccount();
2108		final String[] affiliations = {"member","admin","owner"};
2109		OnIqPacketReceived callback = new OnIqPacketReceived() {
2110
2111			private int i = 0;
2112
2113			@Override
2114			public void onIqPacketReceived(Account account, IqPacket packet) {
2115
2116				Element query = packet.query("http://jabber.org/protocol/muc#admin");
2117				if (packet.getType() == IqPacket.TYPE.RESULT && query != null) {
2118					for(Element child : query.getChildren()) {
2119						if ("item".equals(child.getName())) {
2120							MucOptions.User user = AbstractParser.parseItem(conversation,child);
2121							if (!user.realJidMatchesAccount()) {
2122								conversation.getMucOptions().addUser(user);
2123								getAvatarService().clear(conversation);
2124								updateMucRosterUi();
2125								updateConversationUi();
2126							}
2127						}
2128					}
2129				} else {
2130					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": could not request affiliation "+affiliations[i]+" in "+conversation.getJid().toBareJid());
2131				}
2132				++i;
2133				if (i >= affiliations.length) {
2134					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": retrieved members for "+conversation.getJid().toBareJid()+": "+conversation.getMucOptions().getMembers());
2135				}
2136			}
2137		};
2138		for(String affiliation : affiliations) {
2139			sendIqPacket(account, mIqGenerator.queryAffiliation(conversation, affiliation), callback);
2140		}
2141		Log.d(Config.LOGTAG,account.getJid().toBareJid()+": fetching members for "+conversation.getName());
2142	}
2143
2144	public void providePasswordForMuc(Conversation conversation, String password) {
2145		if (conversation.getMode() == Conversation.MODE_MULTI) {
2146			conversation.getMucOptions().setPassword(password);
2147			if (conversation.getBookmark() != null) {
2148				if (respectAutojoin()) {
2149					conversation.getBookmark().setAutojoin(true);
2150				}
2151				pushBookmarks(conversation.getAccount());
2152			}
2153			updateConversation(conversation);
2154			joinMuc(conversation);
2155		}
2156	}
2157
2158	public void renameInMuc(final Conversation conversation, final String nick, final UiCallback<Conversation> callback) {
2159		final MucOptions options = conversation.getMucOptions();
2160		final Jid joinJid = options.createJoinJid(nick);
2161		if (options.online()) {
2162			Account account = conversation.getAccount();
2163			options.setOnRenameListener(new OnRenameListener() {
2164
2165				@Override
2166				public void onSuccess() {
2167					conversation.setContactJid(joinJid);
2168					databaseBackend.updateConversation(conversation);
2169					Bookmark bookmark = conversation.getBookmark();
2170					if (bookmark != null) {
2171						bookmark.setNick(nick);
2172						pushBookmarks(bookmark.getAccount());
2173					}
2174					callback.success(conversation);
2175				}
2176
2177				@Override
2178				public void onFailure() {
2179					callback.error(R.string.nick_in_use, conversation);
2180				}
2181			});
2182
2183			PresencePacket packet = new PresencePacket();
2184			packet.setTo(joinJid);
2185			packet.setFrom(conversation.getAccount().getJid());
2186
2187			String sig = account.getPgpSignature();
2188			if (sig != null) {
2189				packet.addChild("status").setContent("online");
2190				packet.addChild("x", "jabber:x:signed").setContent(sig);
2191			}
2192			sendPresencePacket(account, packet);
2193		} else {
2194			conversation.setContactJid(joinJid);
2195			databaseBackend.updateConversation(conversation);
2196			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
2197				Bookmark bookmark = conversation.getBookmark();
2198				if (bookmark != null) {
2199					bookmark.setNick(nick);
2200					pushBookmarks(bookmark.getAccount());
2201				}
2202				joinMuc(conversation);
2203			}
2204		}
2205	}
2206
2207	public void leaveMuc(Conversation conversation) {
2208		leaveMuc(conversation, false);
2209	}
2210
2211	private void leaveMuc(Conversation conversation, boolean now) {
2212		Account account = conversation.getAccount();
2213		account.pendingConferenceJoins.remove(conversation);
2214		account.pendingConferenceLeaves.remove(conversation);
2215		if (account.getStatus() == Account.State.ONLINE || now) {
2216			PresencePacket packet = new PresencePacket();
2217			packet.setTo(conversation.getMucOptions().getSelf().getFullJid());
2218			packet.setFrom(conversation.getAccount().getJid());
2219			packet.setAttribute("type", "unavailable");
2220			sendPresencePacket(conversation.getAccount(), packet);
2221			conversation.getMucOptions().setOffline();
2222			conversation.deregisterWithBookmark();
2223			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid()
2224					+ ": leaving muc " + conversation.getJid());
2225		} else {
2226			account.pendingConferenceLeaves.add(conversation);
2227		}
2228	}
2229
2230	private String findConferenceServer(final Account account) {
2231		String server;
2232		if (account.getXmppConnection() != null) {
2233			server = account.getXmppConnection().getMucServer();
2234			if (server != null) {
2235				return server;
2236			}
2237		}
2238		for (Account other : getAccounts()) {
2239			if (other != account && other.getXmppConnection() != null) {
2240				server = other.getXmppConnection().getMucServer();
2241				if (server != null) {
2242					return server;
2243				}
2244			}
2245		}
2246		return null;
2247	}
2248
2249	public void createAdhocConference(final Account account,
2250									  final String subject,
2251									  final Iterable<Jid> jids,
2252									  final UiCallback<Conversation> callback) {
2253		Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": creating adhoc conference with " + jids.toString());
2254		if (account.getStatus() == Account.State.ONLINE) {
2255			try {
2256				String server = findConferenceServer(account);
2257				if (server == null) {
2258					if (callback != null) {
2259						callback.error(R.string.no_conference_server_found, null);
2260					}
2261					return;
2262				}
2263				final Jid jid = Jid.fromParts(new BigInteger(64, getRNG()).toString(Character.MAX_RADIX), server, null);
2264				final Conversation conversation = findOrCreateConversation(account, jid, true);
2265				joinMuc(conversation, new OnConferenceJoined() {
2266					@Override
2267					public void onConferenceJoined(final Conversation conversation) {
2268						pushConferenceConfiguration(conversation, IqGenerator.defaultRoomConfiguration(), new OnConferenceOptionsPushed() {
2269							@Override
2270							public void onPushSucceeded() {
2271								if (subject != null && !subject.trim().isEmpty()) {
2272									pushSubjectToConference(conversation, subject.trim());
2273								}
2274								for (Jid invite : jids) {
2275									invite(conversation, invite);
2276								}
2277								if (account.countPresences() > 1) {
2278									directInvite(conversation, account.getJid().toBareJid());
2279								}
2280								saveConversationAsBookmark(conversation, subject);
2281								if (callback != null) {
2282									callback.success(conversation);
2283								}
2284							}
2285
2286							@Override
2287							public void onPushFailed() {
2288								archiveConversation(conversation);
2289								if (callback != null) {
2290									callback.error(R.string.conference_creation_failed, conversation);
2291								}
2292							}
2293						});
2294					}
2295				});
2296			} catch (InvalidJidException e) {
2297				if (callback != null) {
2298					callback.error(R.string.conference_creation_failed, null);
2299				}
2300			}
2301		} else {
2302			if (callback != null) {
2303				callback.error(R.string.not_connected_try_again, null);
2304			}
2305		}
2306	}
2307
2308	public void fetchConferenceConfiguration(final Conversation conversation) {
2309		fetchConferenceConfiguration(conversation, null);
2310	}
2311
2312	public void fetchConferenceConfiguration(final Conversation conversation, final OnConferenceConfigurationFetched callback) {
2313		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2314		request.setTo(conversation.getJid().toBareJid());
2315		request.query("http://jabber.org/protocol/disco#info");
2316		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2317			@Override
2318			public void onIqPacketReceived(Account account, IqPacket packet) {
2319				Element query = packet.findChild("query","http://jabber.org/protocol/disco#info");
2320				if (packet.getType() == IqPacket.TYPE.RESULT && query != null) {
2321					ArrayList<String> features = new ArrayList<>();
2322					for (Element child : query.getChildren()) {
2323						if (child != null && child.getName().equals("feature")) {
2324							String var = child.getAttribute("var");
2325							if (var != null) {
2326								features.add(var);
2327							}
2328						}
2329					}
2330					Element form = query.findChild("x", "jabber:x:data");
2331					if (form != null) {
2332						conversation.getMucOptions().updateFormData(Data.parse(form));
2333					}
2334					conversation.getMucOptions().updateFeatures(features);
2335					if (callback != null) {
2336						callback.onConferenceConfigurationFetched(conversation);
2337					}
2338					Log.d(Config.LOGTAG,account.getJid().toBareJid()+": fetched muc configuration for "+conversation.getJid().toBareJid()+" - "+features.toString());
2339					updateConversationUi();
2340				} else if (packet.getType() == IqPacket.TYPE.ERROR) {
2341					if (callback != null) {
2342						callback.onFetchFailed(conversation, packet.getError());
2343					}
2344				}
2345			}
2346		});
2347	}
2348
2349	public void pushConferenceConfiguration(final Conversation conversation, final Bundle options, final OnConferenceOptionsPushed callback) {
2350		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2351		request.setTo(conversation.getJid().toBareJid());
2352		request.query("http://jabber.org/protocol/muc#owner");
2353		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2354			@Override
2355			public void onIqPacketReceived(Account account, IqPacket packet) {
2356				if (packet.getType() == IqPacket.TYPE.RESULT) {
2357					Data data = Data.parse(packet.query().findChild("x", "jabber:x:data"));
2358					for (Field field : data.getFields()) {
2359						if (options.containsKey(field.getFieldName())) {
2360							field.setValue(options.getString(field.getFieldName()));
2361						}
2362					}
2363					data.submit();
2364					IqPacket set = new IqPacket(IqPacket.TYPE.SET);
2365					set.setTo(conversation.getJid().toBareJid());
2366					set.query("http://jabber.org/protocol/muc#owner").addChild(data);
2367					sendIqPacket(account, set, new OnIqPacketReceived() {
2368						@Override
2369						public void onIqPacketReceived(Account account, IqPacket packet) {
2370							if (callback != null) {
2371								if (packet.getType() == IqPacket.TYPE.RESULT) {
2372									callback.onPushSucceeded();
2373								} else {
2374									callback.onPushFailed();
2375								}
2376							}
2377						}
2378					});
2379				} else {
2380					if (callback != null) {
2381						callback.onPushFailed();
2382					}
2383				}
2384			}
2385		});
2386	}
2387
2388	public void pushSubjectToConference(final Conversation conference, final String subject) {
2389		MessagePacket packet = this.getMessageGenerator().conferenceSubject(conference, subject);
2390		this.sendMessagePacket(conference.getAccount(), packet);
2391		final MucOptions mucOptions = conference.getMucOptions();
2392		final MucOptions.User self = mucOptions.getSelf();
2393		if (!mucOptions.persistent() && self.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
2394			Bundle options = new Bundle();
2395			options.putString("muc#roomconfig_persistentroom", "1");
2396			this.pushConferenceConfiguration(conference, options, null);
2397		}
2398	}
2399
2400	public void changeAffiliationInConference(final Conversation conference, Jid user, final MucOptions.Affiliation affiliation, final OnAffiliationChanged callback) {
2401		final Jid jid = user.toBareJid();
2402		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jid, affiliation.toString());
2403		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2404			@Override
2405			public void onIqPacketReceived(Account account, IqPacket packet) {
2406				if (packet.getType() == IqPacket.TYPE.RESULT) {
2407					conference.getMucOptions().changeAffiliation(jid, affiliation);
2408					getAvatarService().clear(conference);
2409					callback.onAffiliationChangedSuccessful(jid);
2410				} else {
2411					callback.onAffiliationChangeFailed(jid, R.string.could_not_change_affiliation);
2412				}
2413			}
2414		});
2415	}
2416
2417	public void changeAffiliationsInConference(final Conversation conference, MucOptions.Affiliation before, MucOptions.Affiliation after) {
2418		List<Jid> jids = new ArrayList<>();
2419		for (MucOptions.User user : conference.getMucOptions().getUsers()) {
2420			if (user.getAffiliation() == before && user.getRealJid() != null) {
2421				jids.add(user.getRealJid());
2422			}
2423		}
2424		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
2425		sendIqPacket(conference.getAccount(), request, mDefaultIqHandler);
2426	}
2427
2428	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role, final OnRoleChanged callback) {
2429		IqPacket request = this.mIqGenerator.changeRole(conference, nick, role.toString());
2430		Log.d(Config.LOGTAG, request.toString());
2431		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2432			@Override
2433			public void onIqPacketReceived(Account account, IqPacket packet) {
2434				Log.d(Config.LOGTAG, packet.toString());
2435				if (packet.getType() == IqPacket.TYPE.RESULT) {
2436					callback.onRoleChangedSuccessful(nick);
2437				} else {
2438					callback.onRoleChangeFailed(nick, R.string.could_not_change_role);
2439				}
2440			}
2441		});
2442	}
2443
2444	private void disconnect(Account account, boolean force) {
2445		if ((account.getStatus() == Account.State.ONLINE)
2446				|| (account.getStatus() == Account.State.DISABLED)) {
2447			final XmppConnection connection = account.getXmppConnection();
2448			if (!force) {
2449				List<Conversation> conversations = getConversations();
2450				for (Conversation conversation : conversations) {
2451					if (conversation.getAccount() == account) {
2452						if (conversation.getMode() == Conversation.MODE_MULTI) {
2453							leaveMuc(conversation, true);
2454						} else {
2455							if (conversation.endOtrIfNeeded()) {
2456								Log.d(Config.LOGTAG, account.getJid().toBareJid()
2457										+ ": ended otr session with "
2458										+ conversation.getJid());
2459							}
2460						}
2461					}
2462				}
2463				sendOfflinePresence(account);
2464			}
2465			connection.disconnect(force);
2466		}
2467	}
2468
2469	@Override
2470	public IBinder onBind(Intent intent) {
2471		return mBinder;
2472	}
2473
2474	public void updateMessage(Message message) {
2475		databaseBackend.updateMessage(message);
2476		updateConversationUi();
2477	}
2478
2479	public void updateMessage(Message message, String uuid) {
2480		databaseBackend.updateMessage(message, uuid);
2481		updateConversationUi();
2482	}
2483
2484	protected void syncDirtyContacts(Account account) {
2485		for (Contact contact : account.getRoster().getContacts()) {
2486			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
2487				pushContactToServer(contact);
2488			}
2489			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
2490				deleteContactOnServer(contact);
2491			}
2492		}
2493	}
2494
2495	public void createContact(Contact contact) {
2496		boolean autoGrant = getPreferences().getBoolean("grant_new_contacts", true);
2497		if (autoGrant) {
2498			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
2499			contact.setOption(Contact.Options.ASKING);
2500		}
2501		pushContactToServer(contact);
2502	}
2503
2504	public void onOtrSessionEstablished(Conversation conversation) {
2505		final Account account = conversation.getAccount();
2506		final Session otrSession = conversation.getOtrSession();
2507		Log.d(Config.LOGTAG,
2508				account.getJid().toBareJid() + " otr session established with "
2509						+ conversation.getJid() + "/"
2510						+ otrSession.getSessionID().getUserID());
2511		conversation.findUnsentMessagesWithEncryption(Message.ENCRYPTION_OTR, new Conversation.OnMessageFound() {
2512
2513			@Override
2514			public void onMessageFound(Message message) {
2515				SessionID id = otrSession.getSessionID();
2516				try {
2517					message.setCounterpart(Jid.fromString(id.getAccountID() + "/" + id.getUserID()));
2518				} catch (InvalidJidException e) {
2519					return;
2520				}
2521				if (message.needsUploading()) {
2522					mJingleConnectionManager.createNewConnection(message);
2523				} else {
2524					MessagePacket outPacket = mMessageGenerator.generateOtrChat(message);
2525					if (outPacket != null) {
2526						mMessageGenerator.addDelay(outPacket, message.getTimeSent());
2527						message.setStatus(Message.STATUS_SEND);
2528						databaseBackend.updateMessage(message);
2529						sendMessagePacket(account, outPacket);
2530					}
2531				}
2532				updateConversationUi();
2533			}
2534		});
2535	}
2536
2537	public boolean renewSymmetricKey(Conversation conversation) {
2538		Account account = conversation.getAccount();
2539		byte[] symmetricKey = new byte[32];
2540		this.mRandom.nextBytes(symmetricKey);
2541		Session otrSession = conversation.getOtrSession();
2542		if (otrSession != null) {
2543			MessagePacket packet = new MessagePacket();
2544			packet.setType(MessagePacket.TYPE_CHAT);
2545			packet.setFrom(account.getJid());
2546			MessageGenerator.addMessageHints(packet);
2547			packet.setAttribute("to", otrSession.getSessionID().getAccountID() + "/"
2548					+ otrSession.getSessionID().getUserID());
2549			try {
2550				packet.setBody(otrSession
2551						.transformSending(CryptoHelper.FILETRANSFER
2552								+ CryptoHelper.bytesToHex(symmetricKey))[0]);
2553				sendMessagePacket(account, packet);
2554				conversation.setSymmetricKey(symmetricKey);
2555				return true;
2556			} catch (OtrException e) {
2557				return false;
2558			}
2559		}
2560		return false;
2561	}
2562
2563	public void pushContactToServer(final Contact contact) {
2564		contact.resetOption(Contact.Options.DIRTY_DELETE);
2565		contact.setOption(Contact.Options.DIRTY_PUSH);
2566		final Account account = contact.getAccount();
2567		if (account.getStatus() == Account.State.ONLINE) {
2568			final boolean ask = contact.getOption(Contact.Options.ASKING);
2569			final boolean sendUpdates = contact
2570					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
2571					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
2572			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2573			iq.query(Xmlns.ROSTER).addChild(contact.asElement());
2574			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2575			if (sendUpdates) {
2576				sendPresencePacket(account,
2577						mPresenceGenerator.sendPresenceUpdatesTo(contact));
2578			}
2579			if (ask) {
2580				sendPresencePacket(account,
2581						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
2582			}
2583		}
2584	}
2585
2586	public void publishAvatar(Account account, Uri image, UiCallback<Avatar> callback) {
2587		final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
2588		final int size = Config.AVATAR_SIZE;
2589		final Avatar avatar = getFileBackend().getPepAvatar(image, size, format);
2590		if (avatar != null) {
2591			avatar.height = size;
2592			avatar.width = size;
2593			if (format.equals(Bitmap.CompressFormat.WEBP)) {
2594				avatar.type = "image/webp";
2595			} else if (format.equals(Bitmap.CompressFormat.JPEG)) {
2596				avatar.type = "image/jpeg";
2597			} else if (format.equals(Bitmap.CompressFormat.PNG)) {
2598				avatar.type = "image/png";
2599			}
2600			if (!getFileBackend().save(avatar)) {
2601				callback.error(R.string.error_saving_avatar, avatar);
2602				return;
2603			}
2604			publishAvatar(account, avatar, callback);
2605		} else {
2606			callback.error(R.string.error_publish_avatar_converting, null);
2607		}
2608	}
2609
2610	public void publishAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2611		final IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
2612		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2613
2614			@Override
2615			public void onIqPacketReceived(Account account, IqPacket result) {
2616				if (result.getType() == IqPacket.TYPE.RESULT) {
2617					final IqPacket packet = XmppConnectionService.this.mIqGenerator
2618							.publishAvatarMetadata(avatar);
2619					sendIqPacket(account, packet, new OnIqPacketReceived() {
2620						@Override
2621						public void onIqPacketReceived(Account account, IqPacket result) {
2622							if (result.getType() == IqPacket.TYPE.RESULT) {
2623								if (account.setAvatar(avatar.getFilename())) {
2624									getAvatarService().clear(account);
2625									databaseBackend.updateAccount(account);
2626								}
2627								if (callback != null) {
2628									callback.success(avatar);
2629								} else {
2630									Log.d(Config.LOGTAG,account.getJid().toBareJid()+": published avatar");
2631								}
2632							} else {
2633								if (callback != null) {
2634									callback.error(
2635											R.string.error_publish_avatar_server_reject,
2636											avatar);
2637								}
2638							}
2639						}
2640					});
2641				} else {
2642					if (callback != null) {
2643						callback.error(
2644								R.string.error_publish_avatar_server_reject,
2645								avatar);
2646					}
2647				}
2648			}
2649		});
2650	}
2651
2652	public void republishAvatarIfNeeded(Account account) {
2653		if (account.getAxolotlService().isPepBroken()) {
2654			Log.d(Config.LOGTAG,account.getJid().toBareJid()+": skipping republication of avatar because pep is broken");
2655			return;
2656		}
2657		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2658		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2659
2660			private Avatar parseAvatar(IqPacket packet) {
2661				Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub");
2662				if (pubsub != null) {
2663					Element items = pubsub.findChild("items");
2664					if (items != null) {
2665						return Avatar.parseMetadata(items);
2666					}
2667				}
2668				return null;
2669			}
2670
2671			private boolean errorIsItemNotFound(IqPacket packet) {
2672				Element error = packet.findChild("error");
2673				return packet.getType() == IqPacket.TYPE.ERROR
2674						&& error != null
2675						&& error.hasChild("item-not-found");
2676			}
2677
2678			@Override
2679			public void onIqPacketReceived(Account account, IqPacket packet) {
2680				if (packet.getType() == IqPacket.TYPE.RESULT || errorIsItemNotFound(packet)) {
2681					Avatar serverAvatar = parseAvatar(packet);
2682					if (serverAvatar == null && account.getAvatar() != null) {
2683						Avatar avatar = fileBackend.getStoredPepAvatar(account.getAvatar());
2684						if (avatar != null) {
2685							Log.d(Config.LOGTAG,account.getJid().toBareJid()+": avatar on server was null. republishing");
2686							publishAvatar(account, fileBackend.getStoredPepAvatar(account.getAvatar()), null);
2687						} else {
2688							Log.e(Config.LOGTAG, account.getJid().toBareJid()+": error rereading avatar");
2689						}
2690					}
2691				}
2692			}
2693		});
2694	}
2695
2696	public void fetchAvatar(Account account, Avatar avatar) {
2697		fetchAvatar(account, avatar, null);
2698	}
2699
2700	public void fetchAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2701		final String KEY = generateFetchKey(account, avatar);
2702		synchronized (this.mInProgressAvatarFetches) {
2703			if (!this.mInProgressAvatarFetches.contains(KEY)) {
2704				switch (avatar.origin) {
2705					case PEP:
2706						this.mInProgressAvatarFetches.add(KEY);
2707						fetchAvatarPep(account, avatar, callback);
2708						break;
2709					case VCARD:
2710						this.mInProgressAvatarFetches.add(KEY);
2711						fetchAvatarVcard(account, avatar, callback);
2712						break;
2713				}
2714			}
2715		}
2716	}
2717
2718	private void fetchAvatarPep(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2719		IqPacket packet = this.mIqGenerator.retrievePepAvatar(avatar);
2720		sendIqPacket(account, packet, new OnIqPacketReceived() {
2721
2722			@Override
2723			public void onIqPacketReceived(Account account, IqPacket result) {
2724				synchronized (mInProgressAvatarFetches) {
2725					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2726				}
2727				final String ERROR = account.getJid().toBareJid()
2728						+ ": fetching avatar for " + avatar.owner + " failed ";
2729				if (result.getType() == IqPacket.TYPE.RESULT) {
2730					avatar.image = mIqParser.avatarData(result);
2731					if (avatar.image != null) {
2732						if (getFileBackend().save(avatar)) {
2733							if (account.getJid().toBareJid().equals(avatar.owner)) {
2734								if (account.setAvatar(avatar.getFilename())) {
2735									databaseBackend.updateAccount(account);
2736								}
2737								getAvatarService().clear(account);
2738								updateConversationUi();
2739								updateAccountUi();
2740							} else {
2741								Contact contact = account.getRoster()
2742										.getContact(avatar.owner);
2743								contact.setAvatar(avatar);
2744								getAvatarService().clear(contact);
2745								updateConversationUi();
2746								updateRosterUi();
2747							}
2748							if (callback != null) {
2749								callback.success(avatar);
2750							}
2751							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2752									+ ": successfully fetched pep avatar for " + avatar.owner);
2753							return;
2754						}
2755					} else {
2756
2757						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
2758					}
2759				} else {
2760					Element error = result.findChild("error");
2761					if (error == null) {
2762						Log.d(Config.LOGTAG, ERROR + "(server error)");
2763					} else {
2764						Log.d(Config.LOGTAG, ERROR + error.toString());
2765					}
2766				}
2767				if (callback != null) {
2768					callback.error(0, null);
2769				}
2770
2771			}
2772		});
2773	}
2774
2775	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2776		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
2777		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2778			@Override
2779			public void onIqPacketReceived(Account account, IqPacket packet) {
2780				synchronized (mInProgressAvatarFetches) {
2781					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2782				}
2783				if (packet.getType() == IqPacket.TYPE.RESULT) {
2784					Element vCard = packet.findChild("vCard", "vcard-temp");
2785					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
2786					String image = photo != null ? photo.findChildContent("BINVAL") : null;
2787					if (image != null) {
2788						avatar.image = image;
2789						if (getFileBackend().save(avatar)) {
2790							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2791									+ ": successfully fetched vCard avatar for " + avatar.owner);
2792							if (avatar.owner.isBareJid()) {
2793								if (account.getJid().toBareJid().equals(avatar.owner) && account.getAvatar() == null) {
2794									Log.d(Config.LOGTAG,account.getJid().toBareJid()+": had no avatar. replacing with vcard");
2795									account.setAvatar(avatar.getFilename());
2796									databaseBackend.updateAccount(account);
2797									getAvatarService().clear(account);
2798									updateAccountUi();
2799								} else {
2800									Contact contact = account.getRoster().getContact(avatar.owner);
2801									contact.setAvatar(avatar);
2802									getAvatarService().clear(contact);
2803									updateRosterUi();
2804								}
2805								updateConversationUi();
2806							} else {
2807								Conversation conversation = find(account, avatar.owner.toBareJid());
2808								if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
2809									MucOptions.User user = conversation.getMucOptions().findUserByFullJid(avatar.owner);
2810									if (user != null) {
2811										if (user.setAvatar(avatar)) {
2812											getAvatarService().clear(user);
2813											updateConversationUi();
2814											updateMucRosterUi();
2815										}
2816									}
2817								}
2818							}
2819						}
2820					}
2821				}
2822			}
2823		});
2824	}
2825
2826	public void checkForAvatar(Account account, final UiCallback<Avatar> callback) {
2827		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2828		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2829
2830			@Override
2831			public void onIqPacketReceived(Account account, IqPacket packet) {
2832				if (packet.getType() == IqPacket.TYPE.RESULT) {
2833					Element pubsub = packet.findChild("pubsub","http://jabber.org/protocol/pubsub");
2834					if (pubsub != null) {
2835						Element items = pubsub.findChild("items");
2836						if (items != null) {
2837							Avatar avatar = Avatar.parseMetadata(items);
2838							if (avatar != null) {
2839								avatar.owner = account.getJid().toBareJid();
2840								if (fileBackend.isAvatarCached(avatar)) {
2841									if (account.setAvatar(avatar.getFilename())) {
2842										databaseBackend.updateAccount(account);
2843									}
2844									getAvatarService().clear(account);
2845									callback.success(avatar);
2846								} else {
2847									fetchAvatarPep(account, avatar, callback);
2848								}
2849								return;
2850							}
2851						}
2852					}
2853				}
2854				callback.error(0, null);
2855			}
2856		});
2857	}
2858
2859	public void deleteContactOnServer(Contact contact) {
2860		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
2861		contact.resetOption(Contact.Options.DIRTY_PUSH);
2862		contact.setOption(Contact.Options.DIRTY_DELETE);
2863		Account account = contact.getAccount();
2864		if (account.getStatus() == Account.State.ONLINE) {
2865			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2866			Element item = iq.query(Xmlns.ROSTER).addChild("item");
2867			item.setAttribute("jid", contact.getJid().toString());
2868			item.setAttribute("subscription", "remove");
2869			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2870		}
2871	}
2872
2873	public void updateConversation(final Conversation conversation) {
2874		mDatabaseExecutor.execute(new Runnable() {
2875			@Override
2876			public void run() {
2877				databaseBackend.updateConversation(conversation);
2878			}
2879		});
2880	}
2881
2882	private void reconnectAccount(final Account account, final boolean force, final boolean interactive) {
2883		synchronized (account) {
2884			XmppConnection connection = account.getXmppConnection();
2885			if (connection == null) {
2886				connection = createConnection(account);
2887				account.setXmppConnection(connection);
2888			} else {
2889				connection.interrupt();
2890			}
2891			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
2892				if (!force) {
2893					disconnect(account, false);
2894				}
2895				Thread thread = new Thread(connection);
2896				connection.setInteractive(interactive);
2897				connection.prepareNewConnection();
2898				thread.start();
2899				scheduleWakeUpCall(Config.CONNECT_DISCO_TIMEOUT, account.getUuid().hashCode());
2900			} else {
2901				disconnect(account, force);
2902				account.getRoster().clearPresences();
2903				connection.resetEverything();
2904				account.getAxolotlService().resetBrokenness();
2905			}
2906		}
2907	}
2908
2909	public void reconnectAccountInBackground(final Account account) {
2910		new Thread(new Runnable() {
2911			@Override
2912			public void run() {
2913				reconnectAccount(account, false, true);
2914			}
2915		}).start();
2916	}
2917
2918	public void invite(Conversation conversation, Jid contact) {
2919		Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": inviting " + contact + " to " + conversation.getJid().toBareJid());
2920		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
2921		sendMessagePacket(conversation.getAccount(), packet);
2922	}
2923
2924	public void directInvite(Conversation conversation, Jid jid) {
2925		MessagePacket packet = mMessageGenerator.directInvite(conversation, jid);
2926		sendMessagePacket(conversation.getAccount(), packet);
2927	}
2928
2929	public void resetSendingToWaiting(Account account) {
2930		for (Conversation conversation : getConversations()) {
2931			if (conversation.getAccount() == account) {
2932				conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
2933
2934					@Override
2935					public void onMessageFound(Message message) {
2936						markMessage(message, Message.STATUS_WAITING);
2937					}
2938				});
2939			}
2940		}
2941	}
2942
2943	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status) {
2944		if (uuid == null) {
2945			return null;
2946		}
2947		for (Conversation conversation : getConversations()) {
2948			if (conversation.getJid().toBareJid().equals(recipient) && conversation.getAccount() == account) {
2949				final Message message = conversation.findSentMessageWithUuidOrRemoteId(uuid);
2950				if (message != null) {
2951					markMessage(message, status);
2952				}
2953				return message;
2954			}
2955		}
2956		return null;
2957	}
2958
2959	public boolean markMessage(Conversation conversation, String uuid, int status) {
2960		if (uuid == null) {
2961			return false;
2962		} else {
2963			Message message = conversation.findSentMessageWithUuid(uuid);
2964			if (message != null) {
2965				markMessage(message, status);
2966				return true;
2967			} else {
2968				return false;
2969			}
2970		}
2971	}
2972
2973	public void markMessage(Message message, int status) {
2974		if (status == Message.STATUS_SEND_FAILED
2975				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
2976				.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
2977			return;
2978		}
2979		message.setStatus(status);
2980		databaseBackend.updateMessage(message);
2981		updateConversationUi();
2982	}
2983
2984	public SharedPreferences getPreferences() {
2985		return PreferenceManager
2986				.getDefaultSharedPreferences(getApplicationContext());
2987	}
2988
2989	public boolean confirmMessages() {
2990		return getPreferences().getBoolean("confirm_messages", true);
2991	}
2992
2993	public boolean allowMessageCorrection() {
2994		return getPreferences().getBoolean("allow_message_correction", true);
2995	}
2996
2997	public boolean sendChatStates() {
2998		return getPreferences().getBoolean("chat_states", false);
2999	}
3000
3001	public boolean saveEncryptedMessages() {
3002		return !getPreferences().getBoolean("dont_save_encrypted", false);
3003	}
3004
3005	private boolean respectAutojoin() {
3006		return getPreferences().getBoolean("autojoin", true);
3007	}
3008
3009	public boolean indicateReceived() {
3010		return getPreferences().getBoolean("indicate_received", false);
3011	}
3012
3013	public boolean useTorToConnect() {
3014		return Config.FORCE_ORBOT || getPreferences().getBoolean("use_tor", false);
3015	}
3016
3017	public boolean showExtendedConnectionOptions() {
3018		return getPreferences().getBoolean("show_connection_options", false);
3019	}
3020
3021	public boolean broadcastLastActivity() {
3022		return getPreferences().getBoolean("last_activity", false);
3023	}
3024
3025	public int unreadCount() {
3026		int count = 0;
3027		for (Conversation conversation : getConversations()) {
3028			count += conversation.unreadCount();
3029		}
3030		return count;
3031	}
3032
3033
3034	public void showErrorToastInUi(int resId) {
3035		if (mOnShowErrorToast != null) {
3036			mOnShowErrorToast.onShowErrorToast(resId);
3037		}
3038	}
3039
3040	public void updateConversationUi() {
3041		if (mOnConversationUpdate != null) {
3042			mOnConversationUpdate.onConversationUpdate();
3043		}
3044	}
3045
3046	public void updateAccountUi() {
3047		if (mOnAccountUpdate != null) {
3048			mOnAccountUpdate.onAccountUpdate();
3049		}
3050	}
3051
3052	public void updateRosterUi() {
3053		if (mOnRosterUpdate != null) {
3054			mOnRosterUpdate.onRosterUpdate();
3055		}
3056	}
3057
3058	public boolean displayCaptchaRequest(Account account, String id, Data data, Bitmap captcha) {
3059		if (mOnCaptchaRequested != null) {
3060			DisplayMetrics metrics = getApplicationContext().getResources().getDisplayMetrics();
3061			Bitmap scaled = Bitmap.createScaledBitmap(captcha, (int) (captcha.getWidth() * metrics.scaledDensity),
3062					(int) (captcha.getHeight() * metrics.scaledDensity), false);
3063
3064			mOnCaptchaRequested.onCaptchaRequested(account, id, data, scaled);
3065			return true;
3066		}
3067		return false;
3068	}
3069
3070	public void updateBlocklistUi(final OnUpdateBlocklist.Status status) {
3071		if (mOnUpdateBlocklist != null) {
3072			mOnUpdateBlocklist.OnUpdateBlocklist(status);
3073		}
3074	}
3075
3076	public void updateMucRosterUi() {
3077		if (mOnMucRosterUpdate != null) {
3078			mOnMucRosterUpdate.onMucRosterUpdate();
3079		}
3080	}
3081
3082	public void keyStatusUpdated(AxolotlService.FetchStatus report) {
3083		if (mOnKeyStatusUpdated != null) {
3084			mOnKeyStatusUpdated.onKeyStatusUpdated(report);
3085		}
3086	}
3087
3088	public Account findAccountByJid(final Jid accountJid) {
3089		for (Account account : this.accounts) {
3090			if (account.getJid().toBareJid().equals(accountJid.toBareJid())) {
3091				return account;
3092			}
3093		}
3094		return null;
3095	}
3096
3097	public Conversation findConversationByUuid(String uuid) {
3098		for (Conversation conversation : getConversations()) {
3099			if (conversation.getUuid().equals(uuid)) {
3100				return conversation;
3101			}
3102		}
3103		return null;
3104	}
3105
3106	public boolean markRead(final Conversation conversation) {
3107		return markRead(conversation,true);
3108	}
3109
3110	public boolean markRead(final Conversation conversation, boolean clear) {
3111		if (clear) {
3112			mNotificationService.clear(conversation);
3113		}
3114		final List<Message> readMessages = conversation.markRead();
3115		if (readMessages.size() > 0) {
3116			Runnable runnable = new Runnable() {
3117				@Override
3118				public void run() {
3119					for (Message message : readMessages) {
3120						databaseBackend.updateMessage(message);
3121					}
3122				}
3123			};
3124			mDatabaseExecutor.execute(runnable);
3125			updateUnreadCountBadge();
3126			return true;
3127		} else {
3128			return false;
3129		}
3130	}
3131
3132	public synchronized void updateUnreadCountBadge() {
3133		int count = unreadCount();
3134		if (unreadCount != count) {
3135			Log.d(Config.LOGTAG, "update unread count to " + count);
3136			if (count > 0) {
3137				ShortcutBadger.applyCount(getApplicationContext(), count);
3138			} else {
3139				ShortcutBadger.removeCount(getApplicationContext());
3140			}
3141			unreadCount = count;
3142		}
3143	}
3144
3145	public void sendReadMarker(final Conversation conversation) {
3146		final Message markable = conversation.getLatestMarkableMessage();
3147		if (this.markRead(conversation)) {
3148			updateConversationUi();
3149		}
3150		if (confirmMessages()
3151				&& markable != null
3152				&& markable.trusted()
3153				&& markable.getRemoteMsgId() != null) {
3154			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": sending read marker to " + markable.getCounterpart().toString());
3155			Account account = conversation.getAccount();
3156			final Jid to = markable.getCounterpart();
3157			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId());
3158			this.sendMessagePacket(conversation.getAccount(), packet);
3159		}
3160	}
3161
3162	public SecureRandom getRNG() {
3163		return this.mRandom;
3164	}
3165
3166	public MemorizingTrustManager getMemorizingTrustManager() {
3167		return this.mMemorizingTrustManager;
3168	}
3169
3170	public void setMemorizingTrustManager(MemorizingTrustManager trustManager) {
3171		this.mMemorizingTrustManager = trustManager;
3172	}
3173
3174	public void updateMemorizingTrustmanager() {
3175		final MemorizingTrustManager tm;
3176		final boolean dontTrustSystemCAs = getPreferences().getBoolean("dont_trust_system_cas", false);
3177		if (dontTrustSystemCAs) {
3178			tm = new MemorizingTrustManager(getApplicationContext(), null);
3179		} else {
3180			tm = new MemorizingTrustManager(getApplicationContext());
3181		}
3182		setMemorizingTrustManager(tm);
3183	}
3184
3185	public PowerManager getPowerManager() {
3186		return this.pm;
3187	}
3188
3189	public LruCache<String, Bitmap> getBitmapCache() {
3190		return this.mBitmapCache;
3191	}
3192
3193	public void syncRosterToDisk(final Account account) {
3194		Runnable runnable = new Runnable() {
3195
3196			@Override
3197			public void run() {
3198				databaseBackend.writeRoster(account.getRoster());
3199			}
3200		};
3201		mDatabaseExecutor.execute(runnable);
3202
3203	}
3204
3205	public List<String> getKnownHosts() {
3206		final List<String> hosts = new ArrayList<>();
3207		for (final Account account : getAccounts()) {
3208			if (!hosts.contains(account.getServer().toString())) {
3209				hosts.add(account.getServer().toString());
3210			}
3211			for (final Contact contact : account.getRoster().getContacts()) {
3212				if (contact.showInRoster()) {
3213					final String server = contact.getServer().toString();
3214					if (server != null && !hosts.contains(server)) {
3215						hosts.add(server);
3216					}
3217				}
3218			}
3219		}
3220		if(Config.DOMAIN_LOCK != null && !hosts.contains(Config.DOMAIN_LOCK)) {
3221			hosts.add(Config.DOMAIN_LOCK);
3222		}
3223		if(Config.MAGIC_CREATE_DOMAIN != null && !hosts.contains(Config.MAGIC_CREATE_DOMAIN)) {
3224			hosts.add(Config.MAGIC_CREATE_DOMAIN);
3225		}
3226		return hosts;
3227	}
3228
3229	public List<String> getKnownConferenceHosts() {
3230		final ArrayList<String> mucServers = new ArrayList<>();
3231		for (final Account account : accounts) {
3232			if (account.getXmppConnection() != null) {
3233				final String server = account.getXmppConnection().getMucServer();
3234				if (server != null && !mucServers.contains(server)) {
3235					mucServers.add(server);
3236				}
3237			}
3238		}
3239		return mucServers;
3240	}
3241
3242	public void sendMessagePacket(Account account, MessagePacket packet) {
3243		XmppConnection connection = account.getXmppConnection();
3244		if (connection != null) {
3245			connection.sendMessagePacket(packet);
3246		}
3247	}
3248
3249	public void sendPresencePacket(Account account, PresencePacket packet) {
3250		XmppConnection connection = account.getXmppConnection();
3251		if (connection != null) {
3252			connection.sendPresencePacket(packet);
3253		}
3254	}
3255
3256	public void sendCreateAccountWithCaptchaPacket(Account account, String id, Data data) {
3257		final XmppConnection connection = account.getXmppConnection();
3258		if (connection != null) {
3259			IqPacket request = mIqGenerator.generateCreateAccountWithCaptcha(account, id, data);
3260			connection.sendUnmodifiedIqPacket(request, connection.registrationResponseListener);
3261		}
3262	}
3263
3264	public void sendIqPacket(final Account account, final IqPacket packet, final OnIqPacketReceived callback) {
3265		final XmppConnection connection = account.getXmppConnection();
3266		if (connection != null) {
3267			connection.sendIqPacket(packet, callback);
3268		}
3269	}
3270
3271	public void sendPresence(final Account account) {
3272		sendPresence(account, checkListeners() && broadcastLastActivity());
3273	}
3274
3275	private void sendPresence(final Account account, final boolean includeIdleTimestamp) {
3276		PresencePacket packet;
3277		if (manuallyChangePresence()) {
3278			packet =  mPresenceGenerator.selfPresence(account, account.getPresenceStatus());
3279			String message = account.getPresenceStatusMessage();
3280			if (message != null && !message.isEmpty()) {
3281				packet.addChild(new Element("status").setContent(message));
3282			}
3283		} else {
3284			packet = mPresenceGenerator.selfPresence(account, getTargetPresence());
3285		}
3286		if (mLastActivity > 0 && includeIdleTimestamp) {
3287			long since = Math.min(mLastActivity, System.currentTimeMillis()); //don't send future dates
3288			packet.addChild("idle","urn:xmpp:idle:1").setAttribute("since", AbstractGenerator.getTimestamp(since));
3289		}
3290		sendPresencePacket(account, packet);
3291	}
3292
3293	private void deactivateGracePeriod() {
3294		for(Account account : getAccounts()) {
3295			account.deactivateGracePeriod();
3296		}
3297	}
3298
3299	public void refreshAllPresences() {
3300		boolean includeIdleTimestamp = checkListeners() && broadcastLastActivity();
3301		for (Account account : getAccounts()) {
3302			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
3303				sendPresence(account, includeIdleTimestamp);
3304			}
3305		}
3306	}
3307
3308	private void refreshAllGcmTokens() {
3309		for(Account account : getAccounts()) {
3310			if (account.isOnlineAndConnected() && mPushManagementService.available(account)) {
3311				mPushManagementService.registerPushTokenOnServer(account);
3312			}
3313		}
3314	}
3315
3316	private void sendOfflinePresence(final Account account) {
3317		Log.d(Config.LOGTAG,account.getJid().toBareJid()+": sending offline presence");
3318		sendPresencePacket(account, mPresenceGenerator.sendOfflinePresence(account));
3319	}
3320
3321	public MessageGenerator getMessageGenerator() {
3322		return this.mMessageGenerator;
3323	}
3324
3325	public PresenceGenerator getPresenceGenerator() {
3326		return this.mPresenceGenerator;
3327	}
3328
3329	public IqGenerator getIqGenerator() {
3330		return this.mIqGenerator;
3331	}
3332
3333	public IqParser getIqParser() {
3334		return this.mIqParser;
3335	}
3336
3337	public JingleConnectionManager getJingleConnectionManager() {
3338		return this.mJingleConnectionManager;
3339	}
3340
3341	public MessageArchiveService getMessageArchiveService() {
3342		return this.mMessageArchiveService;
3343	}
3344
3345	public List<Contact> findContacts(Jid jid) {
3346		ArrayList<Contact> contacts = new ArrayList<>();
3347		for (Account account : getAccounts()) {
3348			if (!account.isOptionSet(Account.OPTION_DISABLED)) {
3349				Contact contact = account.getRoster().getContactFromRoster(jid);
3350				if (contact != null) {
3351					contacts.add(contact);
3352				}
3353			}
3354		}
3355		return contacts;
3356	}
3357
3358	public Conversation findFirstMuc(Jid jid) {
3359		for(Conversation conversation : getConversations()) {
3360			if (conversation.getJid().toBareJid().equals(jid.toBareJid())
3361					&& conversation.getMode() == Conversation.MODE_MULTI) {
3362				return conversation;
3363			}
3364		}
3365		return null;
3366	}
3367
3368	public NotificationService getNotificationService() {
3369		return this.mNotificationService;
3370	}
3371
3372	public HttpConnectionManager getHttpConnectionManager() {
3373		return this.mHttpConnectionManager;
3374	}
3375
3376	public void resendFailedMessages(final Message message) {
3377		final Collection<Message> messages = new ArrayList<>();
3378		Message current = message;
3379		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
3380			messages.add(current);
3381			if (current.mergeable(current.next())) {
3382				current = current.next();
3383			} else {
3384				break;
3385			}
3386		}
3387		for (final Message msg : messages) {
3388			msg.setTime(System.currentTimeMillis());
3389			markMessage(msg, Message.STATUS_WAITING);
3390			this.resendMessage(msg, false);
3391		}
3392	}
3393
3394	public void clearConversationHistory(final Conversation conversation) {
3395		conversation.clearMessages();
3396		conversation.setHasMessagesLeftOnServer(false); //avoid messages getting loaded through mam
3397		conversation.setLastClearHistory(System.currentTimeMillis());
3398		Runnable runnable = new Runnable() {
3399			@Override
3400			public void run() {
3401				databaseBackend.deleteMessagesInConversation(conversation);
3402				databaseBackend.updateConversation(conversation);
3403			}
3404		};
3405		mDatabaseExecutor.execute(runnable);
3406	}
3407
3408	public void sendBlockRequest(final Blockable blockable, boolean reportSpam) {
3409		if (blockable != null && blockable.getBlockedJid() != null) {
3410			final Jid jid = blockable.getBlockedJid();
3411			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetBlockRequest(jid, reportSpam), new OnIqPacketReceived() {
3412
3413				@Override
3414				public void onIqPacketReceived(final Account account, final IqPacket packet) {
3415					if (packet.getType() == IqPacket.TYPE.RESULT) {
3416						account.getBlocklist().add(jid);
3417						updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
3418					}
3419				}
3420			});
3421		}
3422	}
3423
3424	public void sendUnblockRequest(final Blockable blockable) {
3425		if (blockable != null && blockable.getJid() != null) {
3426			final Jid jid = blockable.getBlockedJid();
3427			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetUnblockRequest(jid), new OnIqPacketReceived() {
3428				@Override
3429				public void onIqPacketReceived(final Account account, final IqPacket packet) {
3430					if (packet.getType() == IqPacket.TYPE.RESULT) {
3431						account.getBlocklist().remove(jid);
3432						updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
3433					}
3434				}
3435			});
3436		}
3437	}
3438
3439	public void publishDisplayName(Account account) {
3440		String displayName = account.getDisplayName();
3441		if (displayName != null && !displayName.isEmpty()) {
3442			IqPacket publish = mIqGenerator.publishNick(displayName);
3443			sendIqPacket(account, publish, new OnIqPacketReceived() {
3444				@Override
3445				public void onIqPacketReceived(Account account, IqPacket packet) {
3446					if (packet.getType() == IqPacket.TYPE.ERROR) {
3447						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not publish nick");
3448					}
3449				}
3450			});
3451		}
3452	}
3453
3454	public ServiceDiscoveryResult getCachedServiceDiscoveryResult(Pair<String, String> key) {
3455		ServiceDiscoveryResult result = discoCache.get(key);
3456		if (result != null) {
3457			return result;
3458		} else {
3459			result = databaseBackend.findDiscoveryResult(key.first, key.second);
3460			if (result != null) {
3461				discoCache.put(key, result);
3462			}
3463			return result;
3464		}
3465	}
3466
3467	public void fetchCaps(Account account, final Jid jid, final Presence presence) {
3468		final Pair<String,String> key = new Pair<>(presence.getHash(), presence.getVer());
3469		ServiceDiscoveryResult disco = getCachedServiceDiscoveryResult(key);
3470		if (disco != null) {
3471			presence.setServiceDiscoveryResult(disco);
3472		} else {
3473			if (!account.inProgressDiscoFetches.contains(key)) {
3474				account.inProgressDiscoFetches.add(key);
3475				IqPacket request = new IqPacket(IqPacket.TYPE.GET);
3476				request.setTo(jid);
3477				request.query("http://jabber.org/protocol/disco#info");
3478				Log.d(Config.LOGTAG,account.getJid().toBareJid()+": making disco request for "+key.second+" to "+jid);
3479				sendIqPacket(account, request, new OnIqPacketReceived() {
3480					@Override
3481					public void onIqPacketReceived(Account account, IqPacket discoPacket) {
3482						if (discoPacket.getType() == IqPacket.TYPE.RESULT) {
3483							ServiceDiscoveryResult disco = new ServiceDiscoveryResult(discoPacket);
3484							if (presence.getVer().equals(disco.getVer())) {
3485								databaseBackend.insertDiscoveryResult(disco);
3486								injectServiceDiscorveryResult(account.getRoster(), presence.getHash(), presence.getVer(), disco);
3487							} else {
3488								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": mismatch in caps for contact " + jid + " " + presence.getVer() + " vs " + disco.getVer());
3489							}
3490						}
3491						account.inProgressDiscoFetches.remove(key);
3492					}
3493				});
3494			}
3495		}
3496	}
3497
3498	private void injectServiceDiscorveryResult(Roster roster, String hash, String ver, ServiceDiscoveryResult disco) {
3499		for(Contact contact : roster.getContacts()) {
3500			for(Presence presence : contact.getPresences().getPresences().values()) {
3501				if (hash.equals(presence.getHash()) && ver.equals(presence.getVer())) {
3502					presence.setServiceDiscoveryResult(disco);
3503				}
3504			}
3505		}
3506	}
3507
3508	public void fetchMamPreferences(Account account, final OnMamPreferencesFetched callback) {
3509		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
3510		request.addChild("prefs","urn:xmpp:mam:0");
3511		sendIqPacket(account, request, new OnIqPacketReceived() {
3512			@Override
3513			public void onIqPacketReceived(Account account, IqPacket packet) {
3514				Element prefs = packet.findChild("prefs","urn:xmpp:mam:0");
3515				if (packet.getType() == IqPacket.TYPE.RESULT && prefs != null) {
3516					callback.onPreferencesFetched(prefs);
3517				} else {
3518					callback.onPreferencesFetchFailed();
3519				}
3520			}
3521		});
3522	}
3523
3524	public PushManagementService getPushManagementService() {
3525		return mPushManagementService;
3526	}
3527
3528	public Account getPendingAccount() {
3529		Account pending = null;
3530		for(Account account : getAccounts()) {
3531			if (account.isOptionSet(Account.OPTION_REGISTER)) {
3532				pending = account;
3533			} else {
3534				return null;
3535			}
3536		}
3537		return pending;
3538	}
3539
3540	public void changeStatus(Account account, Presence.Status status, String statusMessage, boolean send) {
3541		if (!statusMessage.isEmpty()) {
3542			databaseBackend.insertPresenceTemplate(new PresenceTemplate(status, statusMessage));
3543		}
3544		changeStatusReal(account, status, statusMessage, send);
3545	}
3546
3547	private void changeStatusReal(Account account, Presence.Status status, String statusMessage, boolean send) {
3548		account.setPresenceStatus(status);
3549		account.setPresenceStatusMessage(statusMessage);
3550		databaseBackend.updateAccount(account);
3551		if (!account.isOptionSet(Account.OPTION_DISABLED) && send) {
3552			sendPresence(account);
3553		}
3554	}
3555
3556	public void changeStatus(Presence.Status status, String statusMessage) {
3557		if (!statusMessage.isEmpty()) {
3558			databaseBackend.insertPresenceTemplate(new PresenceTemplate(status, statusMessage));
3559		}
3560		for(Account account : getAccounts()) {
3561			changeStatusReal(account, status, statusMessage, true);
3562		}
3563	}
3564
3565	public List<PresenceTemplate> getPresenceTemplates(Account account) {
3566		List<PresenceTemplate> templates = databaseBackend.getPresenceTemplates();
3567		for(PresenceTemplate template : account.getSelfContact().getPresences().asTemplates()) {
3568			if (!templates.contains(template)) {
3569				templates.add(0, template);
3570			}
3571		}
3572		return templates;
3573	}
3574
3575	public void saveConversationAsBookmark(Conversation conversation, String name) {
3576		Account account = conversation.getAccount();
3577		Bookmark bookmark = new Bookmark(account, conversation.getJid().toBareJid());
3578		if (!conversation.getJid().isBareJid()) {
3579			bookmark.setNick(conversation.getJid().getResourcepart());
3580		}
3581		if (name != null && !name.trim().isEmpty()) {
3582			bookmark.setBookmarkName(name.trim());
3583		}
3584		bookmark.setAutojoin(getPreferences().getBoolean("autojoin",true));
3585		account.getBookmarks().add(bookmark);
3586		pushBookmarks(account);
3587		conversation.setBookmark(bookmark);
3588	}
3589
3590	public interface OnMamPreferencesFetched {
3591		void onPreferencesFetched(Element prefs);
3592		void onPreferencesFetchFailed();
3593	}
3594
3595	public void pushMamPreferences(Account account, Element prefs) {
3596		IqPacket set = new IqPacket(IqPacket.TYPE.SET);
3597		set.addChild(prefs);
3598		sendIqPacket(account, set, null);
3599	}
3600
3601	public interface OnAccountCreated {
3602		void onAccountCreated(Account account);
3603
3604		void informUser(int r);
3605	}
3606
3607	public interface OnMoreMessagesLoaded {
3608		void onMoreMessagesLoaded(int count, Conversation conversation);
3609
3610		void informUser(int r);
3611	}
3612
3613	public interface OnAccountPasswordChanged {
3614		void onPasswordChangeSucceeded();
3615
3616		void onPasswordChangeFailed();
3617	}
3618
3619	public interface OnAffiliationChanged {
3620		void onAffiliationChangedSuccessful(Jid jid);
3621
3622		void onAffiliationChangeFailed(Jid jid, int resId);
3623	}
3624
3625	public interface OnRoleChanged {
3626		void onRoleChangedSuccessful(String nick);
3627
3628		void onRoleChangeFailed(String nick, int resid);
3629	}
3630
3631	public interface OnConversationUpdate {
3632		void onConversationUpdate();
3633	}
3634
3635	public interface OnAccountUpdate {
3636		void onAccountUpdate();
3637	}
3638
3639	public interface OnCaptchaRequested {
3640		void onCaptchaRequested(Account account,
3641								String id,
3642								Data data,
3643								Bitmap captcha);
3644	}
3645
3646	public interface OnRosterUpdate {
3647		void onRosterUpdate();
3648	}
3649
3650	public interface OnMucRosterUpdate {
3651		void onMucRosterUpdate();
3652	}
3653
3654	public interface OnConferenceConfigurationFetched {
3655		void onConferenceConfigurationFetched(Conversation conversation);
3656
3657		void onFetchFailed(Conversation conversation, Element error);
3658	}
3659
3660	public interface OnConferenceJoined {
3661		void onConferenceJoined(Conversation conversation);
3662	}
3663
3664	public interface OnConferenceOptionsPushed {
3665		void onPushSucceeded();
3666
3667		void onPushFailed();
3668	}
3669
3670	public interface OnShowErrorToast {
3671		void onShowErrorToast(int resId);
3672	}
3673
3674	public class XmppConnectionBinder extends Binder {
3675		public XmppConnectionService getService() {
3676			return XmppConnectionService.this;
3677		}
3678	}
3679}