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