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.annotation.BoolRes;
  30import android.support.annotation.IntegerRes;
  31import android.support.v4.app.RemoteInput;
  32import android.util.DisplayMetrics;
  33import android.util.Log;
  34import android.util.LruCache;
  35import android.util.Pair;
  36
  37import org.openintents.openpgp.IOpenPgpService2;
  38import org.openintents.openpgp.util.OpenPgpApi;
  39import org.openintents.openpgp.util.OpenPgpServiceConnection;
  40
  41import java.math.BigInteger;
  42import java.net.URL;
  43import java.security.SecureRandom;
  44import java.security.cert.CertificateException;
  45import java.security.cert.X509Certificate;
  46import java.util.ArrayList;
  47import java.util.Arrays;
  48import java.util.Collection;
  49import java.util.Collections;
  50import java.util.HashMap;
  51import java.util.HashSet;
  52import java.util.Hashtable;
  53import java.util.Iterator;
  54import java.util.List;
  55import java.util.ListIterator;
  56import java.util.Locale;
  57import java.util.Map;
  58import java.util.concurrent.CopyOnWriteArrayList;
  59import java.util.concurrent.CountDownLatch;
  60import java.util.concurrent.atomic.AtomicBoolean;
  61import java.util.concurrent.atomic.AtomicLong;
  62
  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.FingerprintStatus;
  69import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
  70import eu.siacs.conversations.entities.Account;
  71import eu.siacs.conversations.entities.Blockable;
  72import eu.siacs.conversations.entities.Bookmark;
  73import eu.siacs.conversations.entities.Contact;
  74import eu.siacs.conversations.entities.Conversation;
  75import eu.siacs.conversations.entities.DownloadableFile;
  76import eu.siacs.conversations.entities.Message;
  77import eu.siacs.conversations.entities.MucOptions;
  78import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  79import eu.siacs.conversations.entities.Presence;
  80import eu.siacs.conversations.entities.PresenceTemplate;
  81import eu.siacs.conversations.entities.Roster;
  82import eu.siacs.conversations.entities.ServiceDiscoveryResult;
  83import eu.siacs.conversations.entities.Transferable;
  84import eu.siacs.conversations.entities.TransferablePlaceholder;
  85import eu.siacs.conversations.generator.AbstractGenerator;
  86import eu.siacs.conversations.generator.IqGenerator;
  87import eu.siacs.conversations.generator.MessageGenerator;
  88import eu.siacs.conversations.generator.PresenceGenerator;
  89import eu.siacs.conversations.http.HttpConnectionManager;
  90import eu.siacs.conversations.http.AesGcmURLStreamHandlerFactory;
  91import eu.siacs.conversations.parser.AbstractParser;
  92import eu.siacs.conversations.parser.IqParser;
  93import eu.siacs.conversations.parser.MessageParser;
  94import eu.siacs.conversations.parser.PresenceParser;
  95import eu.siacs.conversations.persistance.DatabaseBackend;
  96import eu.siacs.conversations.persistance.FileBackend;
  97import eu.siacs.conversations.ui.SettingsActivity;
  98import eu.siacs.conversations.ui.UiCallback;
  99import eu.siacs.conversations.utils.ConversationsFileObserver;
 100import eu.siacs.conversations.utils.CryptoHelper;
 101import eu.siacs.conversations.utils.ExceptionHelper;
 102import eu.siacs.conversations.utils.MimeUtils;
 103import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
 104import eu.siacs.conversations.utils.PRNGFixes;
 105import eu.siacs.conversations.utils.PhoneHelper;
 106import eu.siacs.conversations.utils.ReplacingSerialSingleThreadExecutor;
 107import eu.siacs.conversations.utils.Resolver;
 108import eu.siacs.conversations.utils.SerialSingleThreadExecutor;
 109import eu.siacs.conversations.xml.Namespace;
 110import eu.siacs.conversations.utils.XmppUri;
 111import eu.siacs.conversations.xml.Element;
 112import eu.siacs.conversations.xmpp.OnBindListener;
 113import eu.siacs.conversations.xmpp.OnContactStatusChanged;
 114import eu.siacs.conversations.xmpp.OnIqPacketReceived;
 115import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
 116import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
 117import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
 118import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
 119import eu.siacs.conversations.xmpp.OnStatusChanged;
 120import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
 121import eu.siacs.conversations.xmpp.Patches;
 122import eu.siacs.conversations.xmpp.XmppConnection;
 123import eu.siacs.conversations.xmpp.chatstate.ChatState;
 124import eu.siacs.conversations.xmpp.forms.Data;
 125import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 126import eu.siacs.conversations.xmpp.jid.Jid;
 127import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 128import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
 129import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
 130import eu.siacs.conversations.xmpp.mam.MamReference;
 131import eu.siacs.conversations.xmpp.pep.Avatar;
 132import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 133import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 134import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 135import me.leolin.shortcutbadger.ShortcutBadger;
 136
 137public class XmppConnectionService extends Service {
 138
 139	static {
 140		URL.setURLStreamHandlerFactory(new AesGcmURLStreamHandlerFactory());
 141	}
 142
 143	public static final String ACTION_REPLY_TO_CONVERSATION = "reply_to_conversations";
 144	public static final String ACTION_MARK_AS_READ = "mark_as_read";
 145	public static final String ACTION_SNOOZE = "snooze";
 146	public static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 147	public static final String ACTION_DISMISS_ERROR_NOTIFICATIONS = "dismiss_error";
 148	public static final String ACTION_TRY_AGAIN = "try_again";
 149	public static final String ACTION_IDLE_PING = "idle_ping";
 150	private static final String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
 151	public static final String ACTION_GCM_TOKEN_REFRESH = "gcm_token_refresh";
 152	public static final String ACTION_GCM_MESSAGE_RECEIVED = "gcm_message_received";
 153	private final SerialSingleThreadExecutor mFileAddingExecutor = new SerialSingleThreadExecutor("FileAdding");
 154	private final SerialSingleThreadExecutor mVideoCompressionExecutor = new SerialSingleThreadExecutor("VideoCompression");
 155	private final SerialSingleThreadExecutor mDatabaseWriterExecutor = new SerialSingleThreadExecutor("DatabaseWriter");
 156	private final SerialSingleThreadExecutor mDatabaseReaderExecutor = new SerialSingleThreadExecutor("DatabaseReader");
 157	private final SerialSingleThreadExecutor mNotificationExecutor = new SerialSingleThreadExecutor("NotificationExecutor");
 158	private ReplacingSerialSingleThreadExecutor mContactMergerExecutor = new ReplacingSerialSingleThreadExecutor(true);
 159	private final IBinder mBinder = new XmppConnectionBinder();
 160	private final List<Conversation> conversations = new CopyOnWriteArrayList<>();
 161	private final IqGenerator mIqGenerator = new IqGenerator(this);
 162	private final List<String> mInProgressAvatarFetches = new ArrayList<>();
 163	private final HashSet<Jid> mLowPingTimeoutMode = new HashSet<>();
 164
 165	private long mLastActivity = 0;
 166
 167	public DatabaseBackend databaseBackend;
 168	private ContentObserver contactObserver = new ContentObserver(null) {
 169		@Override
 170		public void onChange(boolean selfChange) {
 171			super.onChange(selfChange);
 172			Intent intent = new Intent(getApplicationContext(),
 173					XmppConnectionService.class);
 174			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 175			startService(intent);
 176		}
 177	};
 178	private FileBackend fileBackend = new FileBackend(this);
 179	private MemorizingTrustManager mMemorizingTrustManager;
 180	private NotificationService mNotificationService = new NotificationService(this);
 181	private ShortcutService mShortcutService = new ShortcutService(this);
 182	private AtomicBoolean mInitialAddressbookSyncCompleted = new AtomicBoolean(false);
 183	private AtomicBoolean mForceForegroundService = new AtomicBoolean(false);
 184	private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 185	private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 186	private IqParser mIqParser = new IqParser(this);
 187	private OnIqPacketReceived mDefaultIqHandler = new OnIqPacketReceived() {
 188		@Override
 189		public void onIqPacketReceived(Account account, IqPacket packet) {
 190			if (packet.getType() != IqPacket.TYPE.RESULT) {
 191				Element error = packet.findChild("error");
 192				String text = error != null ? error.findChildContent("text") : null;
 193				if (text != null) {
 194					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": received iq error - " + text);
 195				}
 196			}
 197		}
 198	};
 199	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 200	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 201	private List<Account> accounts;
 202	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 203			this);
 204	public OnContactStatusChanged onContactStatusChanged = new OnContactStatusChanged() {
 205
 206		@Override
 207		public void onContactStatusChanged(Contact contact, boolean online) {
 208			Conversation conversation = find(getConversations(), contact);
 209			if (conversation != null) {
 210				if (online) {
 211					if (contact.getPresences().size() == 1) {
 212						sendUnsentMessages(conversation);
 213					}
 214				}
 215			}
 216		}
 217	};
 218	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 219			this);
 220	private AvatarService mAvatarService = new AvatarService(this);
 221	private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 222	private PushManagementService mPushManagementService = new PushManagementService(this);
 223	private OnConversationUpdate mOnConversationUpdate = null;
 224
 225
 226	private final ConversationsFileObserver fileObserver = new ConversationsFileObserver(
 227			Environment.getExternalStorageDirectory().getAbsolutePath()
 228	) {
 229		@Override
 230		public void onEvent(int event, String path) {
 231			markFileDeleted(path);
 232		}
 233	};
 234	private final OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 235
 236		@Override
 237		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 238			mJingleConnectionManager.deliverPacket(account, packet);
 239		}
 240	};
 241	private final OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 242
 243		@Override
 244		public void onMessageAcknowledged(Account account, String uuid) {
 245			for (final Conversation conversation : getConversations()) {
 246				if (conversation.getAccount() == account) {
 247					Message message = conversation.findUnsentMessageWithUuid(uuid);
 248					if (message != null) {
 249						markMessage(message, Message.STATUS_SEND);
 250					}
 251				}
 252			}
 253		}
 254	};
 255	private int convChangedListenerCount = 0;
 256	private OnShowErrorToast mOnShowErrorToast = null;
 257	private int showErrorToastListenerCount = 0;
 258	private int unreadCount = -1;
 259	private OnAccountUpdate mOnAccountUpdate = null;
 260	private OnCaptchaRequested mOnCaptchaRequested = null;
 261	private int accountChangedListenerCount = 0;
 262	private int captchaRequestedListenerCount = 0;
 263	private OnRosterUpdate mOnRosterUpdate = null;
 264	private OnUpdateBlocklist mOnUpdateBlocklist = null;
 265	private int updateBlocklistListenerCount = 0;
 266	private int rosterChangedListenerCount = 0;
 267	private OnMucRosterUpdate mOnMucRosterUpdate = null;
 268	private int mucRosterChangedListenerCount = 0;
 269	private OnKeyStatusUpdated mOnKeyStatusUpdated = null;
 270	private int keyStatusUpdatedListenerCount = 0;
 271	private AtomicLong mLastExpiryRun = new AtomicLong(0);
 272	private SecureRandom mRandom;
 273	private LruCache<Pair<String, String>, ServiceDiscoveryResult> discoCache = new LruCache<>(20);
 274	private final OnBindListener mOnBindListener = new OnBindListener() {
 275
 276		@Override
 277		public void onBind(final Account account) {
 278			synchronized (mInProgressAvatarFetches) {
 279				for (Iterator<String> iterator = mInProgressAvatarFetches.iterator(); iterator.hasNext(); ) {
 280					final String KEY = iterator.next();
 281					if (KEY.startsWith(account.getJid().toBareJid() + "_")) {
 282						iterator.remove();
 283					}
 284				}
 285			}
 286			if (account.setOption(Account.OPTION_LOGGED_IN_SUCCESSFULLY, true)) {
 287				databaseBackend.updateAccount(account);
 288			}
 289			account.getRoster().clearPresences();
 290			mJingleConnectionManager.cancelInTransmission();
 291			fetchRosterFromServer(account);
 292			fetchBookmarks(account);
 293			final boolean flexible= account.getXmppConnection().getFeatures().flexibleOfflineMessageRetrieval();
 294			final boolean catchup = getMessageArchiveService().inCatchup(account);
 295			if (flexible && catchup) {
 296				sendIqPacket(account, mIqGenerator.purgeOfflineMessages(), (acc, packet) -> {
 297					if (packet.getType() == IqPacket.TYPE.RESULT) {
 298						Log.d(Config.LOGTAG, acc.getJid().toBareJid()+": successfully purged offline messages");
 299					}
 300				});
 301			}
 302			sendPresence(account);
 303			if (mPushManagementService.available(account)) {
 304				mPushManagementService.registerPushTokenOnServer(account);
 305			}
 306			connectMultiModeConversations(account);
 307			syncDirtyContacts(account);
 308		}
 309	};
 310	private OnStatusChanged statusListener = new OnStatusChanged() {
 311
 312		@Override
 313		public void onStatusChanged(final Account account) {
 314			XmppConnection connection = account.getXmppConnection();
 315			if (mOnAccountUpdate != null) {
 316				mOnAccountUpdate.onAccountUpdate();
 317			}
 318			if (account.getStatus() == Account.State.ONLINE) {
 319				synchronized (mLowPingTimeoutMode) {
 320					if (mLowPingTimeoutMode.remove(account.getJid().toBareJid())) {
 321						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": leaving low ping timeout mode");
 322					}
 323				}
 324				if (account.setShowErrorNotification(true)) {
 325					databaseBackend.updateAccount(account);
 326				}
 327				mMessageArchiveService.executePendingQueries(account);
 328				if (connection != null && connection.getFeatures().csi()) {
 329					if (checkListeners()) {
 330						Log.d(Config.LOGTAG, account.getJid().toBareJid() + " sending csi//inactive");
 331						connection.sendInactive();
 332					} else {
 333						Log.d(Config.LOGTAG, account.getJid().toBareJid() + " sending csi//active");
 334						connection.sendActive();
 335					}
 336				}
 337				List<Conversation> conversations = getConversations();
 338				for (Conversation conversation : conversations) {
 339					if (conversation.getAccount() == account && !account.pendingConferenceJoins.contains(conversation)) {
 340						sendUnsentMessages(conversation);
 341					}
 342				}
 343				for (Conversation conversation : account.pendingConferenceLeaves) {
 344					leaveMuc(conversation);
 345				}
 346				account.pendingConferenceLeaves.clear();
 347				for (Conversation conversation : account.pendingConferenceJoins) {
 348					joinMuc(conversation);
 349				}
 350				account.pendingConferenceJoins.clear();
 351				scheduleWakeUpCall(Config.PING_MAX_INTERVAL, account.getUuid().hashCode());
 352			} else if (account.getStatus() == Account.State.OFFLINE || account.getStatus() == Account.State.DISABLED) {
 353				resetSendingToWaiting(account);
 354				if (account.isEnabled() && isInLowPingTimeoutMode(account)) {
 355					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": went into offline state during low ping mode. reconnecting now");
 356					reconnectAccount(account, true, false);
 357				} else {
 358					int timeToReconnect = mRandom.nextInt(10) + 2;
 359					scheduleWakeUpCall(timeToReconnect, account.getUuid().hashCode());
 360				}
 361			} else if (account.getStatus() == Account.State.REGISTRATION_SUCCESSFUL) {
 362				databaseBackend.updateAccount(account);
 363				reconnectAccount(account, true, false);
 364			} else if (account.getStatus() != Account.State.CONNECTING && account.getStatus() != Account.State.NO_INTERNET) {
 365				resetSendingToWaiting(account);
 366				if (connection != null && account.getStatus().isAttemptReconnect()) {
 367					final int next = connection.getTimeToNextAttempt();
 368					final boolean lowPingTimeoutMode = isInLowPingTimeoutMode(account);
 369					if (next <= 0) {
 370						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": error connecting account. reconnecting now. lowPingTimeout=" + Boolean.toString(lowPingTimeoutMode));
 371						reconnectAccount(account, true, false);
 372					} else {
 373						final int attempt = connection.getAttempt() + 1;
 374						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": error connecting account. try again in " + next + "s for the " + attempt + " time. lowPingTimeout=" + Boolean.toString(lowPingTimeoutMode));
 375						scheduleWakeUpCall(next, account.getUuid().hashCode());
 376					}
 377				}
 378			}
 379			getNotificationService().updateErrorNotification();
 380		}
 381	};
 382
 383	private boolean isInLowPingTimeoutMode(Account account) {
 384		synchronized (mLowPingTimeoutMode) {
 385			return mLowPingTimeoutMode.contains(account.getJid().toBareJid());
 386		}
 387	}
 388
 389	public void startForcingForegroundNotification() {
 390		mForceForegroundService.set(true);
 391		toggleForegroundService();
 392	}
 393
 394	public void stopForcingForegroundNotification() {
 395		mForceForegroundService.set(false);
 396		toggleForegroundService();
 397	}
 398
 399	private OpenPgpServiceConnection pgpServiceConnection;
 400	private PgpEngine mPgpEngine = null;
 401	private WakeLock wakeLock;
 402	private PowerManager pm;
 403	private LruCache<String, Bitmap> mBitmapCache;
 404	private EventReceiver mEventReceiver = new EventReceiver();
 405
 406	public final CountDownLatch restoredFromDatabaseLatch = new CountDownLatch(1);
 407
 408	private static String generateFetchKey(Account account, final Avatar avatar) {
 409		return account.getJid().toBareJid() + "_" + avatar.owner + "_" + avatar.sha1sum;
 410	}
 411
 412	public boolean areMessagesInitialized() {
 413		return this.restoredFromDatabaseLatch.getCount() == 0;
 414	}
 415
 416	public PgpEngine getPgpEngine() {
 417		if (!Config.supportOpenPgp()) {
 418			return null;
 419		} else if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 420			if (this.mPgpEngine == null) {
 421				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 422						getApplicationContext(),
 423						pgpServiceConnection.getService()), this);
 424			}
 425			return mPgpEngine;
 426		} else {
 427			return null;
 428		}
 429
 430	}
 431
 432	public OpenPgpApi getOpenPgpApi() {
 433		if (!Config.supportOpenPgp()) {
 434			return null;
 435		} else if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 436			return new OpenPgpApi(this, pgpServiceConnection.getService());
 437		} else {
 438			return null;
 439		}
 440	}
 441
 442	public FileBackend getFileBackend() {
 443		return this.fileBackend;
 444	}
 445
 446	public AvatarService getAvatarService() {
 447		return this.mAvatarService;
 448	}
 449
 450	public void attachLocationToConversation(final Conversation conversation,
 451	                                         final Uri uri,
 452	                                         final UiCallback<Message> callback) {
 453		int encryption = conversation.getNextEncryption();
 454		if (encryption == Message.ENCRYPTION_PGP) {
 455			encryption = Message.ENCRYPTION_DECRYPTED;
 456		}
 457		Message message = new Message(conversation, uri.toString(), encryption);
 458		if (conversation.getNextCounterpart() != null) {
 459			message.setCounterpart(conversation.getNextCounterpart());
 460		}
 461		if (encryption == Message.ENCRYPTION_DECRYPTED) {
 462			getPgpEngine().encrypt(message, callback);
 463		} else {
 464			callback.success(message);
 465		}
 466	}
 467
 468	public void attachFileToConversation(final Conversation conversation,
 469	                                     final Uri uri,
 470	                                     final UiCallback<Message> callback) {
 471		if (FileBackend.weOwnFile(this, uri)) {
 472			Log.d(Config.LOGTAG, "trying to attach file that belonged to us");
 473			callback.error(R.string.security_error_invalid_file_access, null);
 474			return;
 475		}
 476		final Message message;
 477		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 478			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 479		} else {
 480			message = new Message(conversation, "", conversation.getNextEncryption());
 481		}
 482		message.setCounterpart(conversation.getNextCounterpart());
 483		message.setType(Message.TYPE_FILE);
 484		final AttachFileToConversationRunnable runnable = new AttachFileToConversationRunnable(this, uri, message, callback);
 485		if (runnable.isVideoMessage()) {
 486			mVideoCompressionExecutor.execute(runnable);
 487		} else {
 488			mFileAddingExecutor.execute(runnable);
 489		}
 490	}
 491
 492	public void attachImageToConversation(final Conversation conversation, final Uri uri, final UiCallback<Message> callback) {
 493		if (FileBackend.weOwnFile(this, uri)) {
 494			Log.d(Config.LOGTAG, "trying to attach file that belonged to us");
 495			callback.error(R.string.security_error_invalid_file_access, null);
 496			return;
 497		}
 498
 499		final String mimeType = MimeUtils.guessMimeTypeFromUri(this, uri);
 500		final String compressPictures = getCompressPicturesPreference();
 501
 502		if ("never".equals(compressPictures)
 503				|| ("auto".equals(compressPictures) && getFileBackend().useImageAsIs(uri))
 504				|| (mimeType != null && mimeType.endsWith("/gif"))) {
 505			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": not compressing picture. sending as file");
 506			attachFileToConversation(conversation, uri, callback);
 507			return;
 508		}
 509		final Message message;
 510		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 511			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 512		} else {
 513			message = new Message(conversation, "", conversation.getNextEncryption());
 514		}
 515		message.setCounterpart(conversation.getNextCounterpart());
 516		message.setType(Message.TYPE_IMAGE);
 517		mFileAddingExecutor.execute(new Runnable() {
 518
 519			@Override
 520			public void run() {
 521				try {
 522					getFileBackend().copyImageToPrivateStorage(message, uri);
 523					if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 524						final PgpEngine pgpEngine = getPgpEngine();
 525						if (pgpEngine != null) {
 526							pgpEngine.encrypt(message, callback);
 527						} else if (callback != null) {
 528							callback.error(R.string.unable_to_connect_to_keychain, null);
 529						}
 530					} else {
 531						callback.success(message);
 532					}
 533				} catch (final FileBackend.FileCopyException e) {
 534					callback.error(e.getResId(), message);
 535				}
 536			}
 537		});
 538	}
 539
 540	public Conversation find(Bookmark bookmark) {
 541		return find(bookmark.getAccount(), bookmark.getJid());
 542	}
 543
 544	public Conversation find(final Account account, final Jid jid) {
 545		return find(getConversations(), account, jid);
 546	}
 547
 548	@Override
 549	public int onStartCommand(Intent intent, int flags, int startId) {
 550		final String action = intent == null ? null : intent.getAction();
 551		String pushedAccountHash = null;
 552		boolean interactive = false;
 553		if (action != null) {
 554			final String uuid = intent.getStringExtra("uuid");
 555			switch (action) {
 556				case ConnectivityManager.CONNECTIVITY_ACTION:
 557					if (hasInternetConnection() && Config.RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE) {
 558						resetAllAttemptCounts(true, false);
 559					}
 560					break;
 561				case ACTION_MERGE_PHONE_CONTACTS:
 562					if (restoredFromDatabaseLatch.getCount() == 0) {
 563						loadPhoneContacts();
 564					}
 565					return START_STICKY;
 566				case Intent.ACTION_SHUTDOWN:
 567					logoutAndSave(true);
 568					return START_NOT_STICKY;
 569				case ACTION_CLEAR_NOTIFICATION:
 570					mNotificationExecutor.execute(() -> {
 571						try {
 572							final Conversation c = findConversationByUuid(uuid);
 573							if (c != null) {
 574								mNotificationService.clear(c);
 575							} else {
 576								mNotificationService.clear();
 577							}
 578							restoredFromDatabaseLatch.await();
 579
 580						} catch (InterruptedException e) {
 581							Log.d(Config.LOGTAG,"unable to process clear notification");
 582						}
 583					});
 584					break;
 585				case ACTION_DISMISS_ERROR_NOTIFICATIONS:
 586					dismissErrorNotifications();
 587					break;
 588				case ACTION_TRY_AGAIN:
 589					resetAllAttemptCounts(false, true);
 590					interactive = true;
 591					break;
 592				case ACTION_REPLY_TO_CONVERSATION:
 593					Bundle remoteInput = RemoteInput.getResultsFromIntent(intent);
 594					if (remoteInput == null) {
 595						break;
 596					}
 597					final CharSequence body = remoteInput.getCharSequence("text_reply");
 598					final boolean dismissNotification = intent.getBooleanExtra("dismiss_notification", false);
 599					if (body == null || body.length() <= 0) {
 600						break;
 601					}
 602					mNotificationExecutor.execute(()-> {
 603						try {
 604							restoredFromDatabaseLatch.await();
 605							final Conversation c = findConversationByUuid(uuid);
 606							if (c != null) {
 607								directReply(c, body.toString(), dismissNotification);
 608							}
 609						} catch (InterruptedException e) {
 610							Log.d(Config.LOGTAG,"unable to process direct reply");
 611						}
 612					});
 613					break;
 614				case ACTION_MARK_AS_READ:
 615					mNotificationExecutor.execute(() -> {
 616						final Conversation c = findConversationByUuid(uuid);
 617						if (c == null) {
 618							Log.d(Config.LOGTAG, "received mark read intent for unknown conversation (" + uuid + ")");
 619							return;
 620						}
 621						try {
 622							restoredFromDatabaseLatch.await();
 623							sendReadMarker(c);
 624						} catch (InterruptedException e) {
 625							Log.d(Config.LOGTAG,"unable to process notification read marker for conversation "+c.getName());
 626						}
 627
 628					});
 629					break;
 630				case ACTION_SNOOZE:
 631					mNotificationExecutor.execute(() -> {
 632						final Conversation c = findConversationByUuid(uuid);
 633						if (c == null) {
 634							Log.d(Config.LOGTAG,"received snooze intent for unknown conversation ("+ uuid +")");
 635							return;
 636						}
 637						c.setMutedTill(System.currentTimeMillis() + 30 * 60 * 1000);
 638						mNotificationService.clear(c);
 639						updateConversation(c);
 640					});
 641				case AudioManager.RINGER_MODE_CHANGED_ACTION:
 642					if (dndOnSilentMode()) {
 643						refreshAllPresences();
 644					}
 645					break;
 646				case Intent.ACTION_SCREEN_ON:
 647					deactivateGracePeriod();
 648				case Intent.ACTION_SCREEN_OFF:
 649					if (awayWhenScreenOff()) {
 650						refreshAllPresences();
 651					}
 652					break;
 653				case ACTION_GCM_TOKEN_REFRESH:
 654					refreshAllGcmTokens();
 655					break;
 656				case ACTION_IDLE_PING:
 657					if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 658						scheduleNextIdlePing();
 659					}
 660					break;
 661				case ACTION_GCM_MESSAGE_RECEIVED:
 662					Log.d(Config.LOGTAG, "gcm push message arrived in service. extras=" + intent.getExtras());
 663					pushedAccountHash = intent.getStringExtra("account");
 664					break;
 665				case Intent.ACTION_SEND:
 666					Uri uri = intent.getData();
 667					if (uri != null) {
 668						Log.d(Config.LOGTAG, "received uri permission for "+uri.toString());
 669					}
 670					return START_STICKY;
 671			}
 672		}
 673		synchronized (this) {
 674			this.wakeLock.acquire();
 675			boolean pingNow = ConnectivityManager.CONNECTIVITY_ACTION.equals(action);
 676			HashSet<Account> pingCandidates = new HashSet<>();
 677			for (Account account : accounts) {
 678				pingNow |= processAccountState(account,
 679						interactive,
 680						"ui".equals(action),
 681						CryptoHelper.getAccountFingerprint(account).equals(pushedAccountHash),
 682						pingCandidates);
 683			}
 684			if (pingNow) {
 685				for (Account account : pingCandidates) {
 686					final boolean lowTimeout = isInLowPingTimeoutMode(account);
 687					account.getXmppConnection().sendPing();
 688					Log.d(Config.LOGTAG, account.getJid().toBareJid() + " send ping (action=" + action + ",lowTimeout=" + Boolean.toString(lowTimeout) + ")");
 689					scheduleWakeUpCall(lowTimeout ? Config.LOW_PING_TIMEOUT : Config.PING_TIMEOUT, account.getUuid().hashCode());
 690				}
 691			}
 692			if (wakeLock.isHeld()) {
 693				try {
 694					wakeLock.release();
 695				} catch (final RuntimeException ignored) {
 696				}
 697			}
 698		}
 699		if (SystemClock.elapsedRealtime() - mLastExpiryRun.get() >= Config.EXPIRY_INTERVAL) {
 700			expireOldMessages();
 701		}
 702		return START_STICKY;
 703	}
 704
 705	private boolean processAccountState(Account account, boolean interactive, boolean isUiAction, boolean isAccountPushed, HashSet<Account> pingCandidates) {
 706		boolean pingNow = false;
 707		if (account.getStatus().isAttemptReconnect()) {
 708			if (!hasInternetConnection()) {
 709				account.setStatus(Account.State.NO_INTERNET);
 710				if (statusListener != null) {
 711					statusListener.onStatusChanged(account);
 712				}
 713			} else {
 714				if (account.getStatus() == Account.State.NO_INTERNET) {
 715					account.setStatus(Account.State.OFFLINE);
 716					if (statusListener != null) {
 717						statusListener.onStatusChanged(account);
 718					}
 719				}
 720				if (account.getStatus() == Account.State.ONLINE) {
 721					synchronized (mLowPingTimeoutMode) {
 722						long lastReceived = account.getXmppConnection().getLastPacketReceived();
 723						long lastSent = account.getXmppConnection().getLastPingSent();
 724						long pingInterval = isUiAction ? Config.PING_MIN_INTERVAL * 1000 : Config.PING_MAX_INTERVAL * 1000;
 725						long msToNextPing = (Math.max(lastReceived, lastSent) + pingInterval) - SystemClock.elapsedRealtime();
 726						int pingTimeout = mLowPingTimeoutMode.contains(account.getJid().toBareJid()) ? Config.LOW_PING_TIMEOUT * 1000 : Config.PING_TIMEOUT * 1000;
 727						long pingTimeoutIn = (lastSent + pingTimeout) - SystemClock.elapsedRealtime();
 728						if (lastSent > lastReceived) {
 729							if (pingTimeoutIn < 0) {
 730								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ping timeout");
 731								this.reconnectAccount(account, true, interactive);
 732							} else {
 733								int secs = (int) (pingTimeoutIn / 1000);
 734								this.scheduleWakeUpCall(secs, account.getUuid().hashCode());
 735							}
 736						} else {
 737							pingCandidates.add(account);
 738							if (isAccountPushed) {
 739								pingNow = true;
 740								if (mLowPingTimeoutMode.add(account.getJid().toBareJid())) {
 741									Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": entering low ping timeout mode");
 742								}
 743							} else if (msToNextPing <= 0) {
 744								pingNow = true;
 745							} else {
 746								this.scheduleWakeUpCall((int) (msToNextPing / 1000), account.getUuid().hashCode());
 747								if (mLowPingTimeoutMode.remove(account.getJid().toBareJid())) {
 748									Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": leaving low ping timeout mode");
 749								}
 750							}
 751						}
 752					}
 753				} else if (account.getStatus() == Account.State.OFFLINE) {
 754					reconnectAccount(account, true, interactive);
 755				} else if (account.getStatus() == Account.State.CONNECTING) {
 756					long secondsSinceLastConnect = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000;
 757					long secondsSinceLastDisco = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastDiscoStarted()) / 1000;
 758					long discoTimeout = Config.CONNECT_DISCO_TIMEOUT - secondsSinceLastDisco;
 759					long timeout = Config.CONNECT_TIMEOUT - secondsSinceLastConnect;
 760					if (timeout < 0) {
 761						Log.d(Config.LOGTAG, account.getJid() + ": time out during connect reconnecting (secondsSinceLast=" + secondsSinceLastConnect + ")");
 762						account.getXmppConnection().resetAttemptCount(false);
 763						reconnectAccount(account, true, interactive);
 764					} else if (discoTimeout < 0) {
 765						account.getXmppConnection().sendDiscoTimeout();
 766						scheduleWakeUpCall((int) Math.min(timeout, discoTimeout), account.getUuid().hashCode());
 767					} else {
 768						scheduleWakeUpCall((int) Math.min(timeout, discoTimeout), account.getUuid().hashCode());
 769					}
 770				} else {
 771					if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 772						reconnectAccount(account, true, interactive);
 773					}
 774				}
 775			}
 776		}
 777		return pingNow;
 778	}
 779
 780	public boolean isDataSaverDisabled() {
 781		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 782			ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
 783			return !connectivityManager.isActiveNetworkMetered()
 784					|| connectivityManager.getRestrictBackgroundStatus() == ConnectivityManager.RESTRICT_BACKGROUND_STATUS_DISABLED;
 785		} else {
 786			return true;
 787		}
 788	}
 789
 790	private void directReply(Conversation conversation, String body, final boolean dismissAfterReply) {
 791		Message message = new Message(conversation, body, conversation.getNextEncryption());
 792		message.markUnread();
 793		if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 794			getPgpEngine().encrypt(message, new UiCallback<Message>() {
 795				@Override
 796				public void success(Message message) {
 797					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 798					sendMessage(message);
 799					if (dismissAfterReply) {
 800						markRead(message.getConversation(), true);
 801					} else {
 802						mNotificationService.pushFromDirectReply(message);
 803					}
 804				}
 805
 806				@Override
 807				public void error(int errorCode, Message object) {
 808
 809				}
 810
 811				@Override
 812				public void userInputRequried(PendingIntent pi, Message object) {
 813
 814				}
 815			});
 816		} else {
 817			sendMessage(message);
 818			if (dismissAfterReply) {
 819				markRead(conversation, true);
 820			} else {
 821				mNotificationService.pushFromDirectReply(message);
 822			}
 823		}
 824	}
 825
 826	private boolean dndOnSilentMode() {
 827		return getBooleanPreference(SettingsActivity.DND_ON_SILENT_MODE, R.bool.dnd_on_silent_mode);
 828	}
 829
 830	private boolean manuallyChangePresence() {
 831		return getBooleanPreference(SettingsActivity.MANUALLY_CHANGE_PRESENCE, R.bool.manually_change_presence);
 832	}
 833
 834	private boolean treatVibrateAsSilent() {
 835		return getBooleanPreference(SettingsActivity.TREAT_VIBRATE_AS_SILENT, R.bool.treat_vibrate_as_silent);
 836	}
 837
 838	private boolean awayWhenScreenOff() {
 839		return getBooleanPreference(SettingsActivity.AWAY_WHEN_SCREEN_IS_OFF, R.bool.away_when_screen_off);
 840	}
 841
 842	private String getCompressPicturesPreference() {
 843		return getPreferences().getString("picture_compression", getResources().getString(R.string.picture_compression));
 844	}
 845
 846	private Presence.Status getTargetPresence() {
 847		if (dndOnSilentMode() && isPhoneSilenced()) {
 848			return Presence.Status.DND;
 849		} else if (awayWhenScreenOff() && !isInteractive()) {
 850			return Presence.Status.AWAY;
 851		} else {
 852			return Presence.Status.ONLINE;
 853		}
 854	}
 855
 856	@SuppressLint("NewApi")
 857	@SuppressWarnings("deprecation")
 858	public boolean isInteractive() {
 859		final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 860
 861		final boolean isScreenOn;
 862		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
 863			isScreenOn = pm.isScreenOn();
 864		} else {
 865			isScreenOn = pm.isInteractive();
 866		}
 867		return isScreenOn;
 868	}
 869
 870	private boolean isPhoneSilenced() {
 871		AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
 872		try {
 873			if (treatVibrateAsSilent()) {
 874				return audioManager.getRingerMode() != AudioManager.RINGER_MODE_NORMAL;
 875			} else {
 876				return audioManager.getRingerMode() == AudioManager.RINGER_MODE_SILENT;
 877			}
 878		} catch (Throwable throwable) {
 879			Log.d(Config.LOGTAG, "platform bug in isPhoneSilenced (" + throwable.getMessage() + ")");
 880			return false;
 881		}
 882	}
 883
 884	private void resetAllAttemptCounts(boolean reallyAll, boolean retryImmediately) {
 885		Log.d(Config.LOGTAG, "resetting all attempt counts");
 886		for (Account account : accounts) {
 887			if (account.hasErrorStatus() || reallyAll) {
 888				final XmppConnection connection = account.getXmppConnection();
 889				if (connection != null) {
 890					connection.resetAttemptCount(retryImmediately);
 891				}
 892			}
 893			if (account.setShowErrorNotification(true)) {
 894				databaseBackend.updateAccount(account);
 895			}
 896		}
 897		mNotificationService.updateErrorNotification();
 898	}
 899
 900	private void dismissErrorNotifications() {
 901		for (final Account account : this.accounts) {
 902			if (account.hasErrorStatus()) {
 903				Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": dismissing error notification");
 904				if (account.setShowErrorNotification(false)) {
 905					databaseBackend.updateAccount(account);
 906				}
 907			}
 908		}
 909	}
 910
 911	private void expireOldMessages() {
 912		expireOldMessages(false);
 913	}
 914
 915	public void expireOldMessages(final boolean resetHasMessagesLeftOnServer) {
 916		mLastExpiryRun.set(SystemClock.elapsedRealtime());
 917		mDatabaseWriterExecutor.execute(new Runnable() {
 918			@Override
 919			public void run() {
 920				long timestamp = getAutomaticMessageDeletionDate();
 921				if (timestamp > 0) {
 922					databaseBackend.expireOldMessages(timestamp);
 923					synchronized (XmppConnectionService.this.conversations) {
 924						for (Conversation conversation : XmppConnectionService.this.conversations) {
 925							conversation.expireOldMessages(timestamp);
 926							if (resetHasMessagesLeftOnServer) {
 927								conversation.messagesLoaded.set(true);
 928								conversation.setHasMessagesLeftOnServer(true);
 929							}
 930						}
 931					}
 932					updateConversationUi();
 933				}
 934			}
 935		});
 936	}
 937
 938	public boolean hasInternetConnection() {
 939		final ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
 940		try {
 941			final NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 942			return activeNetwork != null && activeNetwork.isConnected();
 943		} catch (RuntimeException e) {
 944			Log.d(Config.LOGTAG,"unable to check for internet connection",e);
 945			return true; //if internet connection can not be checked it is probably best to just try
 946		}
 947	}
 948
 949	@SuppressLint("TrulyRandom")
 950	@Override
 951	public void onCreate() {
 952		ExceptionHelper.init(getApplicationContext());
 953		PRNGFixes.apply();
 954		Resolver.init(this);
 955		this.mRandom = new SecureRandom();
 956		updateMemorizingTrustmanager();
 957		final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
 958		final int cacheSize = maxMemory / 8;
 959		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
 960			@Override
 961			protected int sizeOf(final String key, final Bitmap bitmap) {
 962				return bitmap.getByteCount() / 1024;
 963			}
 964		};
 965
 966		Log.d(Config.LOGTAG, "initializing database...");
 967		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 968		Log.d(Config.LOGTAG, "restoring accounts...");
 969		this.accounts = databaseBackend.getAccounts();
 970		final SharedPreferences.Editor editor = getPreferences().edit();
 971		if (this.accounts.size() == 0 && Arrays.asList("Sony", "Sony Ericsson").contains(Build.MANUFACTURER)) {
 972			editor.putBoolean(SettingsActivity.KEEP_FOREGROUND_SERVICE, true);
 973			Log.d(Config.LOGTAG, Build.MANUFACTURER + " is on blacklist. enabling foreground service");
 974		}
 975		editor.putBoolean(EventReceiver.SETTING_ENABLED_ACCOUNTS, hasEnabledAccounts()).apply();
 976		editor.apply();
 977
 978		restoreFromDatabase();
 979
 980		getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 981		new Thread(new Runnable() {
 982			@Override
 983			public void run() {
 984				fileObserver.startWatching();
 985			}
 986		}).start();
 987		if (Config.supportOpenPgp()) {
 988			this.pgpServiceConnection = new OpenPgpServiceConnection(this, "org.sufficientlysecure.keychain", new OpenPgpServiceConnection.OnBound() {
 989				@Override
 990				public void onBound(IOpenPgpService2 service) {
 991					for (Account account : accounts) {
 992						final PgpDecryptionService pgp = account.getPgpDecryptionService();
 993						if (pgp != null) {
 994							pgp.continueDecryption(true);
 995						}
 996					}
 997				}
 998
 999				@Override
1000				public void onError(Exception e) {
1001				}
1002			});
1003			this.pgpServiceConnection.bindToService();
1004		}
1005
1006		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
1007		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "XmppConnectionService");
1008
1009		toggleForegroundService();
1010		updateUnreadCountBadge();
1011		toggleScreenEventReceiver();
1012		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1013			scheduleNextIdlePing();
1014		}
1015		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
1016			registerReceiver(this.mEventReceiver, new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
1017		}
1018	}
1019
1020	@Override
1021	public void onTrimMemory(int level) {
1022		super.onTrimMemory(level);
1023		if (level >= TRIM_MEMORY_COMPLETE) {
1024			Log.d(Config.LOGTAG, "clear cache due to low memory");
1025			getBitmapCache().evictAll();
1026		}
1027	}
1028
1029	@Override
1030	public void onDestroy() {
1031		try {
1032			unregisterReceiver(this.mEventReceiver);
1033		} catch (IllegalArgumentException e) {
1034			//ignored
1035		}
1036		fileObserver.stopWatching();
1037		super.onDestroy();
1038	}
1039
1040	public void toggleScreenEventReceiver() {
1041		if (awayWhenScreenOff() && !manuallyChangePresence()) {
1042			final IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);
1043			filter.addAction(Intent.ACTION_SCREEN_OFF);
1044			registerReceiver(this.mEventReceiver, filter);
1045		} else {
1046			try {
1047				unregisterReceiver(this.mEventReceiver);
1048			} catch (IllegalArgumentException e) {
1049				//ignored
1050			}
1051		}
1052	}
1053
1054	public void toggleForegroundService() {
1055		if (mForceForegroundService.get() || (keepForegroundService() && hasEnabledAccounts())) {
1056			startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, this.mNotificationService.createForegroundNotification());
1057			Log.d(Config.LOGTAG, "started foreground service");
1058		} else {
1059			stopForeground(true);
1060			Log.d(Config.LOGTAG, "stopped foreground service");
1061		}
1062	}
1063
1064	public boolean keepForegroundService() {
1065		return getBooleanPreference(SettingsActivity.KEEP_FOREGROUND_SERVICE, R.bool.enable_foreground_service);
1066	}
1067
1068	@Override
1069	public void onTaskRemoved(final Intent rootIntent) {
1070		super.onTaskRemoved(rootIntent);
1071		if (keepForegroundService() || mForceForegroundService.get()) {
1072			Log.d(Config.LOGTAG, "ignoring onTaskRemoved because foreground service is activated");
1073		} else {
1074			this.logoutAndSave(false);
1075		}
1076	}
1077
1078	private void logoutAndSave(boolean stop) {
1079		int activeAccounts = 0;
1080		for (final Account account : accounts) {
1081			if (account.getStatus() != Account.State.DISABLED) {
1082				activeAccounts++;
1083			}
1084			databaseBackend.writeRoster(account.getRoster());
1085			if (account.getXmppConnection() != null) {
1086				new Thread(new Runnable() {
1087					@Override
1088					public void run() {
1089						disconnect(account, false);
1090					}
1091				}).start();
1092			}
1093		}
1094		if (stop || activeAccounts == 0) {
1095			Log.d(Config.LOGTAG, "good bye");
1096			stopSelf();
1097		}
1098	}
1099
1100	public void scheduleWakeUpCall(int seconds, int requestCode) {
1101		final long timeToWake = SystemClock.elapsedRealtime() + (seconds < 0 ? 1 : seconds + 1) * 1000;
1102		final AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
1103		Intent intent = new Intent(this, EventReceiver.class);
1104		intent.setAction("ping");
1105		PendingIntent pendingIntent = PendingIntent.getBroadcast(this, requestCode, intent, 0);
1106		try {
1107			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, pendingIntent);
1108		} catch (RuntimeException e) {
1109			Log.e(Config.LOGTAG, "unable to schedule alarm for ping", e);
1110		}
1111	}
1112
1113	@TargetApi(Build.VERSION_CODES.M)
1114	private void scheduleNextIdlePing() {
1115		final long timeToWake = SystemClock.elapsedRealtime() + (Config.IDLE_PING_INTERVAL * 1000);
1116		final AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
1117		Intent intent = new Intent(this, EventReceiver.class);
1118		intent.setAction(ACTION_IDLE_PING);
1119		PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
1120		try {
1121			alarmManager.setAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, pendingIntent);
1122		} catch (RuntimeException e) {
1123			Log.d(Config.LOGTAG, "unable to schedule alarm for idle ping", e);
1124		}
1125	}
1126
1127	public XmppConnection createConnection(final Account account) {
1128		final SharedPreferences sharedPref = getPreferences();
1129		String resource;
1130		try {
1131			resource = sharedPref.getString("resource", getString(R.string.default_resource)).toLowerCase(Locale.ENGLISH);
1132			if (resource.trim().isEmpty()) {
1133				throw new Exception();
1134			}
1135		} catch (Exception e) {
1136			resource = "conversations";
1137		}
1138		account.setResource(resource);
1139		final XmppConnection connection = new XmppConnection(account, this);
1140		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
1141		connection.setOnStatusChangedListener(this.statusListener);
1142		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
1143		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
1144		connection.setOnJinglePacketReceivedListener(this.jingleListener);
1145		connection.setOnBindListener(this.mOnBindListener);
1146		connection.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
1147		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mMessageArchiveService);
1148		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mAvatarService);
1149		AxolotlService axolotlService = account.getAxolotlService();
1150		if (axolotlService != null) {
1151			connection.addOnAdvancedStreamFeaturesAvailableListener(axolotlService);
1152		}
1153		return connection;
1154	}
1155
1156	public void sendChatState(Conversation conversation) {
1157		if (sendChatStates()) {
1158			MessagePacket packet = mMessageGenerator.generateChatState(conversation);
1159			sendMessagePacket(conversation.getAccount(), packet);
1160		}
1161	}
1162
1163	private void sendFileMessage(final Message message, final boolean delay) {
1164		Log.d(Config.LOGTAG, "send file message");
1165		final Account account = message.getConversation().getAccount();
1166		if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1167				|| message.getConversation().getMode() == Conversation.MODE_MULTI) {
1168			mHttpConnectionManager.createNewUploadConnection(message, delay);
1169		} else {
1170			mJingleConnectionManager.createNewConnection(message);
1171		}
1172	}
1173
1174	public void sendMessage(final Message message) {
1175		sendMessage(message, false, false);
1176	}
1177
1178	private void sendMessage(final Message message, final boolean resend, final boolean delay) {
1179		final Account account = message.getConversation().getAccount();
1180		if (account.setShowErrorNotification(true)) {
1181			databaseBackend.updateAccount(account);
1182			mNotificationService.updateErrorNotification();
1183		}
1184		final Conversation conversation = message.getConversation();
1185		account.deactivateGracePeriod();
1186		MessagePacket packet = null;
1187		final boolean addToConversation = (conversation.getMode() != Conversation.MODE_MULTI
1188				|| !Patches.BAD_MUC_REFLECTION.contains(account.getServerIdentity()))
1189				&& !message.edited();
1190		boolean saveInDb = addToConversation;
1191		message.setStatus(Message.STATUS_WAITING);
1192
1193		if (account.isOnlineAndConnected()) {
1194			switch (message.getEncryption()) {
1195				case Message.ENCRYPTION_NONE:
1196					if (message.needsUploading()) {
1197						if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1198								|| conversation.getMode() == Conversation.MODE_MULTI
1199								|| message.fixCounterpart()) {
1200							this.sendFileMessage(message, delay);
1201						} else {
1202							break;
1203						}
1204					} else {
1205						packet = mMessageGenerator.generateChat(message);
1206					}
1207					break;
1208				case Message.ENCRYPTION_PGP:
1209				case Message.ENCRYPTION_DECRYPTED:
1210					if (message.needsUploading()) {
1211						if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1212								|| conversation.getMode() == Conversation.MODE_MULTI
1213								|| message.fixCounterpart()) {
1214							this.sendFileMessage(message, delay);
1215						} else {
1216							break;
1217						}
1218					} else {
1219						packet = mMessageGenerator.generatePgpChat(message);
1220					}
1221					break;
1222				case Message.ENCRYPTION_AXOLOTL:
1223					message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
1224					if (message.needsUploading()) {
1225						if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1226								|| conversation.getMode() == Conversation.MODE_MULTI
1227								|| message.fixCounterpart()) {
1228							this.sendFileMessage(message, delay);
1229						} else {
1230							break;
1231						}
1232					} else {
1233						XmppAxolotlMessage axolotlMessage = account.getAxolotlService().fetchAxolotlMessageFromCache(message);
1234						if (axolotlMessage == null) {
1235							account.getAxolotlService().preparePayloadMessage(message, delay);
1236						} else {
1237							packet = mMessageGenerator.generateAxolotlChat(message, axolotlMessage);
1238						}
1239					}
1240					break;
1241
1242			}
1243			if (packet != null) {
1244				if (account.getXmppConnection().getFeatures().sm()
1245						|| (conversation.getMode() == Conversation.MODE_MULTI && message.getCounterpart().isBareJid())) {
1246					message.setStatus(Message.STATUS_UNSEND);
1247				} else {
1248					message.setStatus(Message.STATUS_SEND);
1249				}
1250			}
1251		} else {
1252			switch (message.getEncryption()) {
1253				case Message.ENCRYPTION_DECRYPTED:
1254					if (!message.needsUploading()) {
1255						String pgpBody = message.getEncryptedBody();
1256						String decryptedBody = message.getBody();
1257						message.setBody(pgpBody); //TODO might throw NPE
1258						message.setEncryption(Message.ENCRYPTION_PGP);
1259						if (message.edited()) {
1260							message.setBody(decryptedBody);
1261							message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1262							databaseBackend.updateMessage(message, message.getEditedId());
1263							updateConversationUi();
1264							return;
1265						} else {
1266							databaseBackend.createMessage(message);
1267							saveInDb = false;
1268							message.setBody(decryptedBody);
1269							message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1270						}
1271					}
1272					break;
1273				case Message.ENCRYPTION_AXOLOTL:
1274					message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
1275					break;
1276			}
1277		}
1278
1279
1280		boolean mucMessage = conversation.getMode() == Conversation.MODE_MULTI && message.getType() != Message.TYPE_PRIVATE;
1281		if (mucMessage) {
1282			message.setCounterpart(conversation.getMucOptions().getSelf().getFullJid());
1283		}
1284
1285		if (resend) {
1286			if (packet != null && addToConversation) {
1287				if (account.getXmppConnection().getFeatures().sm() || mucMessage) {
1288					markMessage(message, Message.STATUS_UNSEND);
1289				} else {
1290					markMessage(message, Message.STATUS_SEND);
1291				}
1292			}
1293		} else {
1294			if (addToConversation) {
1295				conversation.add(message);
1296			}
1297			if (saveInDb) {
1298				databaseBackend.createMessage(message);
1299			} else if (message.edited()) {
1300				databaseBackend.updateMessage(message, message.getEditedId());
1301			}
1302			updateConversationUi();
1303		}
1304		if (packet != null) {
1305			if (delay) {
1306				mMessageGenerator.addDelay(packet, message.getTimeSent());
1307			}
1308			if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1309				if (this.sendChatStates()) {
1310					packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
1311				}
1312			}
1313			sendMessagePacket(account, packet);
1314		}
1315	}
1316
1317	private void sendUnsentMessages(final Conversation conversation) {
1318		conversation.findWaitingMessages(new Conversation.OnMessageFound() {
1319
1320			@Override
1321			public void onMessageFound(Message message) {
1322				resendMessage(message, true);
1323			}
1324		});
1325	}
1326
1327	public void resendMessage(final Message message, final boolean delay) {
1328		sendMessage(message, true, delay);
1329	}
1330
1331	public void fetchRosterFromServer(final Account account) {
1332		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1333		if (!"".equals(account.getRosterVersion())) {
1334			Log.d(Config.LOGTAG, account.getJid().toBareJid()
1335					+ ": fetching roster version " + account.getRosterVersion());
1336		} else {
1337			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching roster");
1338		}
1339		iqPacket.query(Namespace.ROSTER).setAttribute("ver", account.getRosterVersion());
1340		sendIqPacket(account, iqPacket, mIqParser);
1341	}
1342
1343	public void fetchBookmarks(final Account account) {
1344		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1345		final Element query = iqPacket.query("jabber:iq:private");
1346		query.addChild("storage", "storage:bookmarks");
1347		final OnIqPacketReceived callback = new OnIqPacketReceived() {
1348
1349			@Override
1350			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1351				if (packet.getType() == IqPacket.TYPE.RESULT) {
1352					final Element query = packet.query();
1353					final HashMap<Jid, Bookmark> bookmarks = new HashMap<>();
1354					final Element storage = query.findChild("storage", "storage:bookmarks");
1355					final boolean autojoin = respectAutojoin();
1356					if (storage != null) {
1357						for (final Element item : storage.getChildren()) {
1358							if (item.getName().equals("conference")) {
1359								final Bookmark bookmark = Bookmark.parse(item, account);
1360								Bookmark old = bookmarks.put(bookmark.getJid(), bookmark);
1361								if (old != null && old.getBookmarkName() != null && bookmark.getBookmarkName() == null) {
1362									bookmark.setBookmarkName(old.getBookmarkName());
1363								}
1364								Conversation conversation = find(bookmark);
1365								if (conversation != null) {
1366									bookmark.setConversation(conversation);
1367								} else if (bookmark.autojoin() && bookmark.getJid() != null && autojoin) {
1368									conversation = findOrCreateConversation(account, bookmark.getJid(), true, true, false);
1369									bookmark.setConversation(conversation);
1370								}
1371							}
1372						}
1373					}
1374					account.setBookmarks(new CopyOnWriteArrayList<>(bookmarks.values()));
1375				} else {
1376					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not fetch bookmarks");
1377				}
1378			}
1379		};
1380		sendIqPacket(account, iqPacket, callback);
1381	}
1382
1383	public void pushBookmarks(Account account) {
1384		Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": pushing bookmarks");
1385		IqPacket iqPacket = new IqPacket(IqPacket.TYPE.SET);
1386		Element query = iqPacket.query("jabber:iq:private");
1387		Element storage = query.addChild("storage", "storage:bookmarks");
1388		for (Bookmark bookmark : account.getBookmarks()) {
1389			storage.addChild(bookmark);
1390		}
1391		sendIqPacket(account, iqPacket, mDefaultIqHandler);
1392	}
1393
1394	private void restoreFromDatabase() {
1395		synchronized (this.conversations) {
1396			final Map<String, Account> accountLookupTable = new Hashtable<>();
1397			for (Account account : this.accounts) {
1398				accountLookupTable.put(account.getUuid(), account);
1399			}
1400			Log.d(Config.LOGTAG, "restoring conversations...");
1401			final long startTimeConversationsRestore = SystemClock.elapsedRealtime();
1402			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
1403			for (Iterator<Conversation> iterator = conversations.listIterator(); iterator.hasNext(); ) {
1404				Conversation conversation = iterator.next();
1405				Account account = accountLookupTable.get(conversation.getAccountUuid());
1406				if (account != null) {
1407					conversation.setAccount(account);
1408				} else {
1409					Log.e(Config.LOGTAG, "unable to restore Conversations with " + conversation.getJid());
1410					iterator.remove();
1411				}
1412			}
1413			long diffConversationsRestore = SystemClock.elapsedRealtime() - startTimeConversationsRestore;
1414			Log.d(Config.LOGTAG, "finished restoring conversations in " + diffConversationsRestore + "ms");
1415			Runnable runnable = new Runnable() {
1416				@Override
1417				public void run() {
1418					long deletionDate = getAutomaticMessageDeletionDate();
1419					mLastExpiryRun.set(SystemClock.elapsedRealtime());
1420					if (deletionDate > 0) {
1421						Log.d(Config.LOGTAG, "deleting messages that are older than " + AbstractGenerator.getTimestamp(deletionDate));
1422						databaseBackend.expireOldMessages(deletionDate);
1423					}
1424					Log.d(Config.LOGTAG, "restoring roster...");
1425					for (Account account : accounts) {
1426						databaseBackend.readRoster(account.getRoster());
1427						account.initAccountServices(XmppConnectionService.this); //roster needs to be loaded at this stage
1428					}
1429					getBitmapCache().evictAll();
1430					loadPhoneContacts();
1431					Log.d(Config.LOGTAG, "restoring messages...");
1432					final long startMessageRestore = SystemClock.elapsedRealtime();
1433					for (Conversation conversation : conversations) {
1434						conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1435						checkDeletedFiles(conversation);
1436						conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
1437
1438							@Override
1439							public void onMessageFound(Message message) {
1440								markMessage(message, Message.STATUS_WAITING);
1441							}
1442						});
1443						conversation.findUnreadMessages(new Conversation.OnMessageFound() {
1444							@Override
1445							public void onMessageFound(Message message) {
1446								mNotificationService.pushFromBacklog(message);
1447							}
1448						});
1449					}
1450					mNotificationService.finishBacklog(false);
1451					restoredFromDatabaseLatch.countDown();
1452					final long diffMessageRestore = SystemClock.elapsedRealtime() - startMessageRestore;
1453					Log.d(Config.LOGTAG, "finished restoring messages in " + diffMessageRestore + "ms");
1454					updateConversationUi();
1455				}
1456			};
1457			mDatabaseReaderExecutor.execute(runnable); //will contain one write command (expiry) but that's fine
1458		}
1459	}
1460
1461	public void loadPhoneContacts() {
1462		mContactMergerExecutor.execute(new Runnable() {
1463			@Override
1464			public void run() {
1465				PhoneHelper.loadPhoneContacts(XmppConnectionService.this, new OnPhoneContactsLoadedListener() {
1466					@Override
1467					public void onPhoneContactsLoaded(List<Bundle> phoneContacts) {
1468						Log.d(Config.LOGTAG, "start merging phone contacts with roster");
1469						for (Account account : accounts) {
1470							List<Contact> withSystemAccounts = account.getRoster().getWithSystemAccounts();
1471							for (Bundle phoneContact : phoneContacts) {
1472								Jid jid;
1473								try {
1474									jid = Jid.fromString(phoneContact.getString("jid"));
1475								} catch (final InvalidJidException e) {
1476									continue;
1477								}
1478								final Contact contact = account.getRoster().getContact(jid);
1479								String systemAccount = phoneContact.getInt("phoneid")
1480										+ "#"
1481										+ phoneContact.getString("lookup");
1482								contact.setSystemAccount(systemAccount);
1483								boolean needsCacheClean = contact.setPhotoUri(phoneContact.getString("photouri"));
1484								needsCacheClean |= contact.setSystemName(phoneContact.getString("displayname"));
1485								if (needsCacheClean) {
1486									getAvatarService().clear(contact);
1487								}
1488								withSystemAccounts.remove(contact);
1489							}
1490							for (Contact contact : withSystemAccounts) {
1491								contact.setSystemAccount(null);
1492								boolean needsCacheClean = contact.setPhotoUri(null);
1493								needsCacheClean |= contact.setSystemName(null);
1494								if (needsCacheClean) {
1495									getAvatarService().clear(contact);
1496								}
1497							}
1498						}
1499						Log.d(Config.LOGTAG, "finished merging phone contacts");
1500						mShortcutService.refresh(mInitialAddressbookSyncCompleted.compareAndSet(false, true));
1501						updateAccountUi();
1502					}
1503				});
1504			}
1505		});
1506	}
1507
1508	public List<Conversation> getConversations() {
1509		return this.conversations;
1510	}
1511
1512	private void checkDeletedFiles(Conversation conversation) {
1513		conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1514
1515			@Override
1516			public void onMessageFound(Message message) {
1517				if (!getFileBackend().isFileAvailable(message)) {
1518					message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1519					final int s = message.getStatus();
1520					if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1521						markMessage(message, Message.STATUS_SEND_FAILED);
1522					}
1523				}
1524			}
1525		});
1526	}
1527
1528	private void markFileDeleted(final String path) {
1529		Log.d(Config.LOGTAG, "deleted file " + path);
1530		for (Conversation conversation : getConversations()) {
1531			conversation.findMessagesWithFiles(new Conversation.OnMessageFound() {
1532				@Override
1533				public void onMessageFound(Message message) {
1534					DownloadableFile file = fileBackend.getFile(message);
1535					if (file.getAbsolutePath().equals(path)) {
1536						if (!file.exists()) {
1537							message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1538							final int s = message.getStatus();
1539							if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1540								markMessage(message, Message.STATUS_SEND_FAILED);
1541							} else {
1542								updateConversationUi();
1543							}
1544						} else {
1545							Log.d(Config.LOGTAG, "found matching message for file " + path + " but file still exists");
1546						}
1547					}
1548				}
1549			});
1550		}
1551	}
1552
1553	public void populateWithOrderedConversations(final List<Conversation> list) {
1554		populateWithOrderedConversations(list, true);
1555	}
1556
1557	public void populateWithOrderedConversations(final List<Conversation> list, boolean includeNoFileUpload) {
1558		list.clear();
1559		if (includeNoFileUpload) {
1560			list.addAll(getConversations());
1561		} else {
1562			for (Conversation conversation : getConversations()) {
1563				if (conversation.getMode() == Conversation.MODE_SINGLE
1564						|| conversation.getAccount().httpUploadAvailable()) {
1565					list.add(conversation);
1566				}
1567			}
1568		}
1569		try {
1570			Collections.sort(list);
1571		} catch (IllegalArgumentException e) {
1572			//ignore
1573		}
1574	}
1575
1576	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
1577		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation, callback)) {
1578			return;
1579		} else if (timestamp == 0) {
1580			return;
1581		}
1582		Log.d(Config.LOGTAG, "load more messages for " + conversation.getName() + " prior to " + MessageGenerator.getTimestamp(timestamp));
1583		final Runnable runnable = () -> {
1584			final Account account = conversation.getAccount();
1585			List<Message> messages = databaseBackend.getMessages(conversation, 50, timestamp);
1586			if (messages.size() > 0) {
1587				conversation.addAll(0, messages);
1588				checkDeletedFiles(conversation);
1589				callback.onMoreMessagesLoaded(messages.size(), conversation);
1590			} else if (conversation.hasMessagesLeftOnServer()
1591					&& account.isOnlineAndConnected()
1592					&& conversation.getLastClearHistory().getTimestamp() == 0) {
1593				final boolean mamAvailable;
1594				if (conversation.getMode() == Conversation.MODE_SINGLE) {
1595					mamAvailable = account.getXmppConnection().getFeatures().mam() && !conversation.getContact().isBlocked();
1596				} else {
1597					mamAvailable = conversation.getMucOptions().mamSupport();
1598				}
1599				if (mamAvailable) {
1600					MessageArchiveService.Query query = getMessageArchiveService().query(conversation, new MamReference(0), timestamp, false);
1601					if (query != null) {
1602						query.setCallback(callback);
1603						callback.informUser(R.string.fetching_history_from_server);
1604					} else {
1605						callback.informUser(R.string.not_fetching_history_retention_period);
1606					}
1607
1608				}
1609			}
1610		};
1611		mDatabaseReaderExecutor.execute(runnable);
1612	}
1613
1614	public List<Account> getAccounts() {
1615		return this.accounts;
1616	}
1617
1618	public List<Conversation> findAllConferencesWith(Contact contact) {
1619		ArrayList<Conversation> results = new ArrayList<>();
1620		for (Conversation conversation : conversations) {
1621			if (conversation.getMode() == Conversation.MODE_MULTI
1622					&& conversation.getMucOptions().isContactInRoom(contact)) {
1623				results.add(conversation);
1624			}
1625		}
1626		return results;
1627	}
1628
1629	public Conversation find(final Iterable<Conversation> haystack, final Contact contact) {
1630		for (final Conversation conversation : haystack) {
1631			if (conversation.getContact() == contact) {
1632				return conversation;
1633			}
1634		}
1635		return null;
1636	}
1637
1638	public Conversation find(final Iterable<Conversation> haystack, final Account account, final Jid jid) {
1639		if (jid == null) {
1640			return null;
1641		}
1642		for (final Conversation conversation : haystack) {
1643			if ((account == null || conversation.getAccount() == account)
1644					&& (conversation.getJid().toBareJid().equals(jid.toBareJid()))) {
1645				return conversation;
1646			}
1647		}
1648		return null;
1649	}
1650
1651	public Conversation findOrCreateConversation(Account account, Jid jid, boolean muc, final boolean async) {
1652		return this.findOrCreateConversation(account, jid, muc, false, async);
1653	}
1654
1655	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final boolean joinAfterCreate, final boolean async) {
1656		return this.findOrCreateConversation(account, jid, muc, joinAfterCreate, null, async);
1657	}
1658
1659	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final boolean joinAfterCreate, final MessageArchiveService.Query query, final boolean async) {
1660		synchronized (this.conversations) {
1661			Conversation conversation = find(account, jid);
1662			if (conversation != null) {
1663				return conversation;
1664			}
1665			conversation = databaseBackend.findConversation(account, jid);
1666			final boolean loadMessagesFromDb;
1667			if (conversation != null) {
1668				conversation.setStatus(Conversation.STATUS_AVAILABLE);
1669				conversation.setAccount(account);
1670				if (muc) {
1671					conversation.setMode(Conversation.MODE_MULTI);
1672					conversation.setContactJid(jid);
1673				} else {
1674					conversation.setMode(Conversation.MODE_SINGLE);
1675					conversation.setContactJid(jid.toBareJid());
1676				}
1677				databaseBackend.updateConversation(conversation);
1678				loadMessagesFromDb = conversation.messagesLoaded.compareAndSet(true, false);
1679			} else {
1680				String conversationName;
1681				Contact contact = account.getRoster().getContact(jid);
1682				if (contact != null) {
1683					conversationName = contact.getDisplayName();
1684				} else {
1685					conversationName = jid.getLocalpart();
1686				}
1687				if (muc) {
1688					conversation = new Conversation(conversationName, account, jid,
1689							Conversation.MODE_MULTI);
1690				} else {
1691					conversation = new Conversation(conversationName, account, jid.toBareJid(),
1692							Conversation.MODE_SINGLE);
1693				}
1694				this.databaseBackend.createConversation(conversation);
1695				loadMessagesFromDb = false;
1696			}
1697			final Conversation c = conversation;
1698			final Runnable runnable = () -> {
1699				if (loadMessagesFromDb) {
1700					c.addAll(0, databaseBackend.getMessages(c, Config.PAGE_SIZE));
1701					updateConversationUi();
1702					c.messagesLoaded.set(true);
1703				}
1704				if (account.getXmppConnection() != null
1705						&& !c.getContact().isBlocked()
1706						&& account.getXmppConnection().getFeatures().mam()
1707						&& !muc) {
1708					if (query == null) {
1709						mMessageArchiveService.query(c);
1710					} else {
1711						if (query.getConversation() == null) {
1712							mMessageArchiveService.query(c, query.getStart(), query.isCatchup());
1713						}
1714					}
1715				}
1716				checkDeletedFiles(c);
1717				if (joinAfterCreate) {
1718					joinMuc(c);
1719				}
1720			};
1721			if (async) {
1722				mDatabaseReaderExecutor.execute(runnable);
1723			} else {
1724				runnable.run();
1725			}
1726			this.conversations.add(conversation);
1727			updateConversationUi();
1728			return conversation;
1729		}
1730	}
1731
1732	public void archiveConversation(Conversation conversation) {
1733		getNotificationService().clear(conversation);
1734		conversation.setStatus(Conversation.STATUS_ARCHIVED);
1735		synchronized (this.conversations) {
1736			getMessageArchiveService().kill(conversation);
1737			if (conversation.getMode() == Conversation.MODE_MULTI) {
1738				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1739					Bookmark bookmark = conversation.getBookmark();
1740					if (bookmark != null && bookmark.autojoin() && respectAutojoin()) {
1741						bookmark.setAutojoin(false);
1742						pushBookmarks(bookmark.getAccount());
1743					}
1744				}
1745				leaveMuc(conversation);
1746			} else {
1747				if (conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1748					Log.d(Config.LOGTAG, "Canceling presence request from " + conversation.getJid().toString());
1749					sendPresencePacket(
1750							conversation.getAccount(),
1751							mPresenceGenerator.stopPresenceUpdatesTo(conversation.getContact())
1752					);
1753				}
1754			}
1755			updateConversation(conversation);
1756			this.conversations.remove(conversation);
1757			updateConversationUi();
1758		}
1759	}
1760
1761	public void createAccount(final Account account) {
1762		account.initAccountServices(this);
1763		databaseBackend.createAccount(account);
1764		this.accounts.add(account);
1765		this.reconnectAccountInBackground(account);
1766		updateAccountUi();
1767		syncEnabledAccountSetting();
1768		toggleForegroundService();
1769	}
1770
1771	private void syncEnabledAccountSetting() {
1772		getPreferences().edit().putBoolean(EventReceiver.SETTING_ENABLED_ACCOUNTS, hasEnabledAccounts()).apply();
1773	}
1774
1775	public void createAccountFromKey(final String alias, final OnAccountCreated callback) {
1776		new Thread(() -> {
1777			try {
1778				final X509Certificate[] chain = KeyChain.getCertificateChain(this, alias);
1779				final X509Certificate cert = chain != null && chain.length > 0 ? chain[0] : null;
1780				if (cert == null) {
1781					callback.informUser(R.string.unable_to_parse_certificate);
1782					return;
1783				}
1784				Pair<Jid, String> info = CryptoHelper.extractJidAndName(cert);
1785				if (info == null) {
1786					callback.informUser(R.string.certificate_does_not_contain_jid);
1787					return;
1788				}
1789				if (findAccountByJid(info.first) == null) {
1790					Account account = new Account(info.first, "");
1791					account.setPrivateKeyAlias(alias);
1792					account.setOption(Account.OPTION_DISABLED, true);
1793					account.setDisplayName(info.second);
1794					createAccount(account);
1795					callback.onAccountCreated(account);
1796					if (Config.X509_VERIFICATION) {
1797						try {
1798							getMemorizingTrustManager().getNonInteractive(account.getJid().getDomainpart()).checkClientTrusted(chain, "RSA");
1799						} catch (CertificateException e) {
1800							callback.informUser(R.string.certificate_chain_is_not_trusted);
1801						}
1802					}
1803				} else {
1804					callback.informUser(R.string.account_already_exists);
1805				}
1806			} catch (Exception e) {
1807				e.printStackTrace();
1808				callback.informUser(R.string.unable_to_parse_certificate);
1809			}
1810		}).start();
1811
1812	}
1813
1814	public void updateKeyInAccount(final Account account, final String alias) {
1815		Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": update key in account " + alias);
1816		try {
1817			X509Certificate[] chain = KeyChain.getCertificateChain(XmppConnectionService.this, alias);
1818			Log.d(Config.LOGTAG, account.getJid().toBareJid() + " loaded certificate chain");
1819			Pair<Jid, String> info = CryptoHelper.extractJidAndName(chain[0]);
1820			if (info == null) {
1821				showErrorToastInUi(R.string.certificate_does_not_contain_jid);
1822				return;
1823			}
1824			if (account.getJid().toBareJid().equals(info.first)) {
1825				account.setPrivateKeyAlias(alias);
1826				account.setDisplayName(info.second);
1827				databaseBackend.updateAccount(account);
1828				if (Config.X509_VERIFICATION) {
1829					try {
1830						getMemorizingTrustManager().getNonInteractive().checkClientTrusted(chain, "RSA");
1831					} catch (CertificateException e) {
1832						showErrorToastInUi(R.string.certificate_chain_is_not_trusted);
1833					}
1834					account.getAxolotlService().regenerateKeys(true);
1835				}
1836			} else {
1837				showErrorToastInUi(R.string.jid_does_not_match_certificate);
1838			}
1839		} catch (Exception e) {
1840			e.printStackTrace();
1841		}
1842	}
1843
1844	public boolean updateAccount(final Account account) {
1845		if (databaseBackend.updateAccount(account)) {
1846			account.setShowErrorNotification(true);
1847			this.statusListener.onStatusChanged(account);
1848			databaseBackend.updateAccount(account);
1849			reconnectAccountInBackground(account);
1850			updateAccountUi();
1851			getNotificationService().updateErrorNotification();
1852			toggleForegroundService();
1853			syncEnabledAccountSetting();
1854			return true;
1855		} else {
1856			return false;
1857		}
1858	}
1859
1860	public void updateAccountPasswordOnServer(final Account account, final String newPassword, final OnAccountPasswordChanged callback) {
1861		final IqPacket iq = getIqGenerator().generateSetPassword(account, newPassword);
1862		sendIqPacket(account, iq, new OnIqPacketReceived() {
1863			@Override
1864			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1865				if (packet.getType() == IqPacket.TYPE.RESULT) {
1866					account.setPassword(newPassword);
1867					account.setOption(Account.OPTION_MAGIC_CREATE, false);
1868					databaseBackend.updateAccount(account);
1869					callback.onPasswordChangeSucceeded();
1870				} else {
1871					callback.onPasswordChangeFailed();
1872				}
1873			}
1874		});
1875	}
1876
1877	public void deleteAccount(final Account account) {
1878		synchronized (this.conversations) {
1879			for (final Conversation conversation : conversations) {
1880				if (conversation.getAccount() == account) {
1881					if (conversation.getMode() == Conversation.MODE_MULTI) {
1882						leaveMuc(conversation);
1883					}
1884					conversations.remove(conversation);
1885				}
1886			}
1887			if (account.getXmppConnection() != null) {
1888				new Thread(() -> disconnect(account, true)).start();
1889			}
1890			final Runnable runnable = () -> {
1891				if (!databaseBackend.deleteAccount(account)) {
1892					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": unable to delete account");
1893				}
1894			};
1895			mDatabaseWriterExecutor.execute(runnable);
1896			this.accounts.remove(account);
1897			updateAccountUi();
1898			getNotificationService().updateErrorNotification();
1899			syncEnabledAccountSetting();
1900		}
1901	}
1902
1903	public void setOnConversationListChangedListener(OnConversationUpdate listener) {
1904		synchronized (this) {
1905			this.mLastActivity = System.currentTimeMillis();
1906			if (checkListeners()) {
1907				switchToForeground();
1908			}
1909			this.mOnConversationUpdate = listener;
1910			this.mNotificationService.setIsInForeground(true);
1911			if (this.convChangedListenerCount < 2) {
1912				this.convChangedListenerCount++;
1913			}
1914		}
1915	}
1916
1917	public void removeOnConversationListChangedListener() {
1918		synchronized (this) {
1919			this.convChangedListenerCount--;
1920			if (this.convChangedListenerCount <= 0) {
1921				this.convChangedListenerCount = 0;
1922				this.mOnConversationUpdate = null;
1923				this.mNotificationService.setIsInForeground(false);
1924				if (checkListeners()) {
1925					switchToBackground();
1926				}
1927			}
1928		}
1929	}
1930
1931	public void setOnShowErrorToastListener(OnShowErrorToast onShowErrorToast) {
1932		synchronized (this) {
1933			if (checkListeners()) {
1934				switchToForeground();
1935			}
1936			this.mOnShowErrorToast = onShowErrorToast;
1937			if (this.showErrorToastListenerCount < 2) {
1938				this.showErrorToastListenerCount++;
1939			}
1940		}
1941		this.mOnShowErrorToast = onShowErrorToast;
1942	}
1943
1944	public void removeOnShowErrorToastListener() {
1945		synchronized (this) {
1946			this.showErrorToastListenerCount--;
1947			if (this.showErrorToastListenerCount <= 0) {
1948				this.showErrorToastListenerCount = 0;
1949				this.mOnShowErrorToast = null;
1950				if (checkListeners()) {
1951					switchToBackground();
1952				}
1953			}
1954		}
1955	}
1956
1957	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
1958		synchronized (this) {
1959			if (checkListeners()) {
1960				switchToForeground();
1961			}
1962			this.mOnAccountUpdate = listener;
1963			if (this.accountChangedListenerCount < 2) {
1964				this.accountChangedListenerCount++;
1965			}
1966		}
1967	}
1968
1969	public void removeOnAccountListChangedListener() {
1970		synchronized (this) {
1971			this.accountChangedListenerCount--;
1972			if (this.accountChangedListenerCount <= 0) {
1973				this.mOnAccountUpdate = null;
1974				this.accountChangedListenerCount = 0;
1975				if (checkListeners()) {
1976					switchToBackground();
1977				}
1978			}
1979		}
1980	}
1981
1982	public void setOnCaptchaRequestedListener(OnCaptchaRequested listener) {
1983		synchronized (this) {
1984			if (checkListeners()) {
1985				switchToForeground();
1986			}
1987			this.mOnCaptchaRequested = listener;
1988			if (this.captchaRequestedListenerCount < 2) {
1989				this.captchaRequestedListenerCount++;
1990			}
1991		}
1992	}
1993
1994	public void removeOnCaptchaRequestedListener() {
1995		synchronized (this) {
1996			this.captchaRequestedListenerCount--;
1997			if (this.captchaRequestedListenerCount <= 0) {
1998				this.mOnCaptchaRequested = null;
1999				this.captchaRequestedListenerCount = 0;
2000				if (checkListeners()) {
2001					switchToBackground();
2002				}
2003			}
2004		}
2005	}
2006
2007	public void setOnRosterUpdateListener(final OnRosterUpdate listener) {
2008		synchronized (this) {
2009			if (checkListeners()) {
2010				switchToForeground();
2011			}
2012			this.mOnRosterUpdate = listener;
2013			if (this.rosterChangedListenerCount < 2) {
2014				this.rosterChangedListenerCount++;
2015			}
2016		}
2017	}
2018
2019	public void removeOnRosterUpdateListener() {
2020		synchronized (this) {
2021			this.rosterChangedListenerCount--;
2022			if (this.rosterChangedListenerCount <= 0) {
2023				this.rosterChangedListenerCount = 0;
2024				this.mOnRosterUpdate = null;
2025				if (checkListeners()) {
2026					switchToBackground();
2027				}
2028			}
2029		}
2030	}
2031
2032	public void setOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
2033		synchronized (this) {
2034			if (checkListeners()) {
2035				switchToForeground();
2036			}
2037			this.mOnUpdateBlocklist = listener;
2038			if (this.updateBlocklistListenerCount < 2) {
2039				this.updateBlocklistListenerCount++;
2040			}
2041		}
2042	}
2043
2044	public void removeOnUpdateBlocklistListener() {
2045		synchronized (this) {
2046			this.updateBlocklistListenerCount--;
2047			if (this.updateBlocklistListenerCount <= 0) {
2048				this.updateBlocklistListenerCount = 0;
2049				this.mOnUpdateBlocklist = null;
2050				if (checkListeners()) {
2051					switchToBackground();
2052				}
2053			}
2054		}
2055	}
2056
2057	public void setOnKeyStatusUpdatedListener(final OnKeyStatusUpdated listener) {
2058		synchronized (this) {
2059			if (checkListeners()) {
2060				switchToForeground();
2061			}
2062			this.mOnKeyStatusUpdated = listener;
2063			if (this.keyStatusUpdatedListenerCount < 2) {
2064				this.keyStatusUpdatedListenerCount++;
2065			}
2066		}
2067	}
2068
2069	public void removeOnNewKeysAvailableListener() {
2070		synchronized (this) {
2071			this.keyStatusUpdatedListenerCount--;
2072			if (this.keyStatusUpdatedListenerCount <= 0) {
2073				this.keyStatusUpdatedListenerCount = 0;
2074				this.mOnKeyStatusUpdated = null;
2075				if (checkListeners()) {
2076					switchToBackground();
2077				}
2078			}
2079		}
2080	}
2081
2082	public void setOnMucRosterUpdateListener(OnMucRosterUpdate listener) {
2083		synchronized (this) {
2084			if (checkListeners()) {
2085				switchToForeground();
2086			}
2087			this.mOnMucRosterUpdate = listener;
2088			if (this.mucRosterChangedListenerCount < 2) {
2089				this.mucRosterChangedListenerCount++;
2090			}
2091		}
2092	}
2093
2094	public void removeOnMucRosterUpdateListener() {
2095		synchronized (this) {
2096			this.mucRosterChangedListenerCount--;
2097			if (this.mucRosterChangedListenerCount <= 0) {
2098				this.mucRosterChangedListenerCount = 0;
2099				this.mOnMucRosterUpdate = null;
2100				if (checkListeners()) {
2101					switchToBackground();
2102				}
2103			}
2104		}
2105	}
2106
2107	public boolean checkListeners() {
2108		return (this.mOnAccountUpdate == null
2109				&& this.mOnConversationUpdate == null
2110				&& this.mOnRosterUpdate == null
2111				&& this.mOnCaptchaRequested == null
2112				&& this.mOnUpdateBlocklist == null
2113				&& this.mOnShowErrorToast == null
2114				&& this.mOnKeyStatusUpdated == null);
2115	}
2116
2117	private void switchToForeground() {
2118		final boolean broadcastLastActivity = broadcastLastActivity();
2119		for (Conversation conversation : getConversations()) {
2120			if (conversation.getMode() == Conversation.MODE_MULTI) {
2121				conversation.getMucOptions().resetChatState();
2122			} else {
2123				conversation.setIncomingChatState(Config.DEFAULT_CHATSTATE);
2124			}
2125		}
2126		for (Account account : getAccounts()) {
2127			if (account.getStatus() == Account.State.ONLINE) {
2128				account.deactivateGracePeriod();
2129				final XmppConnection connection = account.getXmppConnection();
2130				if (connection != null) {
2131					if (connection.getFeatures().csi()) {
2132						connection.sendActive();
2133					}
2134					if (broadcastLastActivity) {
2135						sendPresence(account, false); //send new presence but don't include idle because we are not
2136					}
2137				}
2138			}
2139		}
2140		Log.d(Config.LOGTAG, "app switched into foreground");
2141	}
2142
2143	private void switchToBackground() {
2144		final boolean broadcastLastActivity = broadcastLastActivity();
2145		for (Account account : getAccounts()) {
2146			if (account.getStatus() == Account.State.ONLINE) {
2147				XmppConnection connection = account.getXmppConnection();
2148				if (connection != null) {
2149					if (broadcastLastActivity) {
2150						sendPresence(account, true);
2151					}
2152					if (connection.getFeatures().csi()) {
2153						connection.sendInactive();
2154					}
2155				}
2156			}
2157		}
2158		this.mNotificationService.setIsInForeground(false);
2159		Log.d(Config.LOGTAG, "app switched into background");
2160	}
2161
2162	private void connectMultiModeConversations(Account account) {
2163		List<Conversation> conversations = getConversations();
2164		for (Conversation conversation : conversations) {
2165			if (conversation.getMode() == Conversation.MODE_MULTI && conversation.getAccount() == account) {
2166				joinMuc(conversation);
2167			}
2168		}
2169	}
2170
2171	public void joinMuc(Conversation conversation) {
2172		joinMuc(conversation, null, false);
2173	}
2174
2175	public void joinMuc(Conversation conversation, boolean followedInvite) {
2176		joinMuc(conversation, null, followedInvite);
2177	}
2178
2179	private void joinMuc(Conversation conversation, final OnConferenceJoined onConferenceJoined) {
2180		joinMuc(conversation, onConferenceJoined, false);
2181	}
2182
2183	private void joinMuc(Conversation conversation, final OnConferenceJoined onConferenceJoined, final boolean followedInvite) {
2184		Account account = conversation.getAccount();
2185		account.pendingConferenceJoins.remove(conversation);
2186		account.pendingConferenceLeaves.remove(conversation);
2187		if (account.getStatus() == Account.State.ONLINE) {
2188			sendPresencePacket(account, mPresenceGenerator.leave(conversation.getMucOptions()));
2189			conversation.resetMucOptions();
2190			if (onConferenceJoined != null) {
2191				conversation.getMucOptions().flagNoAutoPushConfiguration();
2192			}
2193			conversation.setHasMessagesLeftOnServer(false);
2194			fetchConferenceConfiguration(conversation, new OnConferenceConfigurationFetched() {
2195
2196				private void join(Conversation conversation) {
2197					Account account = conversation.getAccount();
2198					final MucOptions mucOptions = conversation.getMucOptions();
2199					final Jid joinJid = mucOptions.getSelf().getFullJid();
2200					Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": joining conversation " + joinJid.toString());
2201					PresencePacket packet = mPresenceGenerator.selfPresence(account, Presence.Status.ONLINE, mucOptions.nonanonymous() || onConferenceJoined != null);
2202					packet.setTo(joinJid);
2203					Element x = packet.addChild("x", "http://jabber.org/protocol/muc");
2204					if (conversation.getMucOptions().getPassword() != null) {
2205						x.addChild("password").setContent(mucOptions.getPassword());
2206					}
2207
2208					if (mucOptions.mamSupport()) {
2209						// Use MAM instead of the limited muc history to get history
2210						x.addChild("history").setAttribute("maxchars", "0");
2211					} else {
2212						// Fallback to muc history
2213						x.addChild("history").setAttribute("since", PresenceGenerator.getTimestamp(conversation.getLastMessageTransmitted().getTimestamp()));
2214					}
2215					sendPresencePacket(account, packet);
2216					if (onConferenceJoined != null) {
2217						onConferenceJoined.onConferenceJoined(conversation);
2218					}
2219					if (!joinJid.equals(conversation.getJid())) {
2220						conversation.setContactJid(joinJid);
2221						databaseBackend.updateConversation(conversation);
2222					}
2223
2224					if (mucOptions.mamSupport()) {
2225						getMessageArchiveService().catchupMUC(conversation);
2226					}
2227					if (mucOptions.isPrivateAndNonAnonymous()) {
2228						fetchConferenceMembers(conversation);
2229						if (followedInvite && conversation.getBookmark() == null) {
2230							saveConversationAsBookmark(conversation, null);
2231						}
2232					}
2233					sendUnsentMessages(conversation);
2234				}
2235
2236				@Override
2237				public void onConferenceConfigurationFetched(Conversation conversation) {
2238					join(conversation);
2239				}
2240
2241				@Override
2242				public void onFetchFailed(final Conversation conversation, Element error) {
2243					if (error != null && "remote-server-not-found".equals(error.getName())) {
2244						conversation.getMucOptions().setError(MucOptions.Error.SERVER_NOT_FOUND);
2245						updateConversationUi();
2246					} else {
2247						join(conversation);
2248						fetchConferenceConfiguration(conversation);
2249					}
2250				}
2251			});
2252			updateConversationUi();
2253		} else {
2254			account.pendingConferenceJoins.add(conversation);
2255			conversation.resetMucOptions();
2256			conversation.setHasMessagesLeftOnServer(false);
2257			updateConversationUi();
2258		}
2259	}
2260
2261	private void fetchConferenceMembers(final Conversation conversation) {
2262		final Account account = conversation.getAccount();
2263		final AxolotlService axolotlService = account.getAxolotlService();
2264		final String[] affiliations = {"member", "admin", "owner"};
2265		OnIqPacketReceived callback = new OnIqPacketReceived() {
2266
2267			private int i = 0;
2268			private boolean success = true;
2269
2270			@Override
2271			public void onIqPacketReceived(Account account, IqPacket packet) {
2272
2273				Element query = packet.query("http://jabber.org/protocol/muc#admin");
2274				if (packet.getType() == IqPacket.TYPE.RESULT && query != null) {
2275					for (Element child : query.getChildren()) {
2276						if ("item".equals(child.getName())) {
2277							MucOptions.User user = AbstractParser.parseItem(conversation, child);
2278							if (!user.realJidMatchesAccount()) {
2279								boolean isNew = conversation.getMucOptions().updateUser(user);
2280								Contact contact = user.getContact();
2281								if (isNew
2282										&& user.getRealJid() != null
2283										&& (contact == null || !contact.mutualPresenceSubscription())
2284										&& axolotlService.hasEmptyDeviceList(user.getRealJid())) {
2285									axolotlService.fetchDeviceIds(user.getRealJid());
2286								}
2287							}
2288						}
2289					}
2290				} else {
2291					success = false;
2292					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not request affiliation " + affiliations[i] + " in " + conversation.getJid().toBareJid());
2293				}
2294				++i;
2295				if (i >= affiliations.length) {
2296					List<Jid> members = conversation.getMucOptions().getMembers();
2297					if (success) {
2298						List<Jid> cryptoTargets = conversation.getAcceptedCryptoTargets();
2299						boolean changed = false;
2300						for (ListIterator<Jid> iterator = cryptoTargets.listIterator(); iterator.hasNext(); ) {
2301							Jid jid = iterator.next();
2302							if (!members.contains(jid)) {
2303								iterator.remove();
2304								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": removed " + jid + " from crypto targets of " + conversation.getName());
2305								changed = true;
2306							}
2307						}
2308						if (changed) {
2309							conversation.setAcceptedCryptoTargets(cryptoTargets);
2310							updateConversation(conversation);
2311						}
2312					}
2313					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": retrieved members for " + conversation.getJid().toBareJid() + ": " + conversation.getMucOptions().getMembers());
2314					getAvatarService().clear(conversation);
2315					updateMucRosterUi();
2316					updateConversationUi();
2317				}
2318			}
2319		};
2320		for (String affiliation : affiliations) {
2321			sendIqPacket(account, mIqGenerator.queryAffiliation(conversation, affiliation), callback);
2322		}
2323		Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetching members for " + conversation.getName());
2324	}
2325
2326	public void providePasswordForMuc(Conversation conversation, String password) {
2327		if (conversation.getMode() == Conversation.MODE_MULTI) {
2328			conversation.getMucOptions().setPassword(password);
2329			if (conversation.getBookmark() != null) {
2330				if (respectAutojoin()) {
2331					conversation.getBookmark().setAutojoin(true);
2332				}
2333				pushBookmarks(conversation.getAccount());
2334			}
2335			updateConversation(conversation);
2336			joinMuc(conversation);
2337		}
2338	}
2339
2340	private boolean hasEnabledAccounts() {
2341		for (Account account : this.accounts) {
2342			if (account.isEnabled()) {
2343				return true;
2344			}
2345		}
2346		return false;
2347	}
2348
2349	public void persistSelfNick(MucOptions.User self) {
2350		final Conversation conversation = self.getConversation();
2351		Jid full = self.getFullJid();
2352		if (!full.equals(conversation.getJid())) {
2353			Log.d(Config.LOGTAG,"nick changed. updating");
2354			conversation.setContactJid(full);
2355			databaseBackend.updateConversation(conversation);
2356		}
2357
2358		Bookmark bookmark = conversation.getBookmark();
2359		if (bookmark != null && !full.getResourcepart().equals(bookmark.getNick())) {
2360			bookmark.setNick(full.getResourcepart());
2361			pushBookmarks(bookmark.getAccount());
2362		}
2363	}
2364
2365	public boolean renameInMuc(final Conversation conversation, final String nick, final UiCallback<Conversation> callback) {
2366		final MucOptions options = conversation.getMucOptions();
2367		final Jid joinJid = options.createJoinJid(nick);
2368		if (joinJid == null) {
2369			return false;
2370		}
2371		if (options.online()) {
2372			Account account = conversation.getAccount();
2373			options.setOnRenameListener(new OnRenameListener() {
2374
2375				@Override
2376				public void onSuccess() {
2377					callback.success(conversation);
2378				}
2379
2380				@Override
2381				public void onFailure() {
2382					callback.error(R.string.nick_in_use, conversation);
2383				}
2384			});
2385
2386			PresencePacket packet = new PresencePacket();
2387			packet.setTo(joinJid);
2388			packet.setFrom(conversation.getAccount().getJid());
2389
2390			String sig = account.getPgpSignature();
2391			if (sig != null) {
2392				packet.addChild("status").setContent("online");
2393				packet.addChild("x", "jabber:x:signed").setContent(sig);
2394			}
2395			sendPresencePacket(account, packet);
2396		} else {
2397			conversation.setContactJid(joinJid);
2398			databaseBackend.updateConversation(conversation);
2399			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
2400				Bookmark bookmark = conversation.getBookmark();
2401				if (bookmark != null) {
2402					bookmark.setNick(nick);
2403					pushBookmarks(bookmark.getAccount());
2404				}
2405				joinMuc(conversation);
2406			}
2407		}
2408		return true;
2409	}
2410
2411	public void leaveMuc(Conversation conversation) {
2412		leaveMuc(conversation, false);
2413	}
2414
2415	private void leaveMuc(Conversation conversation, boolean now) {
2416		Account account = conversation.getAccount();
2417		account.pendingConferenceJoins.remove(conversation);
2418		account.pendingConferenceLeaves.remove(conversation);
2419		if (account.getStatus() == Account.State.ONLINE || now) {
2420			sendPresencePacket(conversation.getAccount(), mPresenceGenerator.leave(conversation.getMucOptions()));
2421			conversation.getMucOptions().setOffline();
2422			Bookmark bookmark = conversation.getBookmark();
2423			if (bookmark != null) {
2424				bookmark.setConversation(null);
2425			}
2426			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": leaving muc " + conversation.getJid());
2427		} else {
2428			account.pendingConferenceLeaves.add(conversation);
2429		}
2430	}
2431
2432	public String findConferenceServer(final Account account) {
2433		String server;
2434		if (account.getXmppConnection() != null) {
2435			server = account.getXmppConnection().getMucServer();
2436			if (server != null) {
2437				return server;
2438			}
2439		}
2440		for (Account other : getAccounts()) {
2441			if (other != account && other.getXmppConnection() != null) {
2442				server = other.getXmppConnection().getMucServer();
2443				if (server != null) {
2444					return server;
2445				}
2446			}
2447		}
2448		return null;
2449	}
2450
2451	public boolean createAdhocConference(final Account account,
2452	                                     final String subject,
2453	                                     final Iterable<Jid> jids,
2454	                                     final UiCallback<Conversation> callback) {
2455		Log.d(Config.LOGTAG, account.getJid().toBareJid().toString() + ": creating adhoc conference with " + jids.toString());
2456		if (account.getStatus() == Account.State.ONLINE) {
2457			try {
2458				String server = findConferenceServer(account);
2459				if (server == null) {
2460					if (callback != null) {
2461						callback.error(R.string.no_conference_server_found, null);
2462					}
2463					return false;
2464				}
2465				final Jid jid = Jid.fromParts(new BigInteger(64, getRNG()).toString(Character.MAX_RADIX), server, null);
2466				final Conversation conversation = findOrCreateConversation(account, jid, true, false, true);
2467				joinMuc(conversation, new OnConferenceJoined() {
2468					@Override
2469					public void onConferenceJoined(final Conversation conversation) {
2470						pushConferenceConfiguration(conversation, IqGenerator.defaultRoomConfiguration(), new OnConfigurationPushed() {
2471							@Override
2472							public void onPushSucceeded() {
2473								if (subject != null && !subject.trim().isEmpty()) {
2474									pushSubjectToConference(conversation, subject.trim());
2475								}
2476								for (Jid invite : jids) {
2477									invite(conversation, invite);
2478								}
2479								if (account.countPresences() > 1) {
2480									directInvite(conversation, account.getJid().toBareJid());
2481								}
2482								saveConversationAsBookmark(conversation, subject);
2483								if (callback != null) {
2484									callback.success(conversation);
2485								}
2486							}
2487
2488							@Override
2489							public void onPushFailed() {
2490								archiveConversation(conversation);
2491								if (callback != null) {
2492									callback.error(R.string.conference_creation_failed, conversation);
2493								}
2494							}
2495						});
2496					}
2497				});
2498				return true;
2499			} catch (InvalidJidException e) {
2500				if (callback != null) {
2501					callback.error(R.string.conference_creation_failed, null);
2502				}
2503				return false;
2504			}
2505		} else {
2506			if (callback != null) {
2507				callback.error(R.string.not_connected_try_again, null);
2508			}
2509			return false;
2510		}
2511	}
2512
2513	public void fetchConferenceConfiguration(final Conversation conversation) {
2514		fetchConferenceConfiguration(conversation, null);
2515	}
2516
2517	public void fetchConferenceConfiguration(final Conversation conversation, final OnConferenceConfigurationFetched callback) {
2518		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2519		request.setTo(conversation.getJid().toBareJid());
2520		request.query("http://jabber.org/protocol/disco#info");
2521		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2522			@Override
2523			public void onIqPacketReceived(Account account, IqPacket packet) {
2524				Element query = packet.findChild("query", "http://jabber.org/protocol/disco#info");
2525				if (packet.getType() == IqPacket.TYPE.RESULT && query != null) {
2526					ArrayList<String> features = new ArrayList<>();
2527					for (Element child : query.getChildren()) {
2528						if (child != null && child.getName().equals("feature")) {
2529							String var = child.getAttribute("var");
2530							if (var != null) {
2531								features.add(var);
2532							}
2533						}
2534					}
2535					Element form = query.findChild("x", Namespace.DATA);
2536					if (form != null) {
2537						conversation.getMucOptions().updateFormData(Data.parse(form));
2538					}
2539					conversation.getMucOptions().updateFeatures(features);
2540					if (callback != null) {
2541						callback.onConferenceConfigurationFetched(conversation);
2542					}
2543					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": fetched muc configuration for " + conversation.getJid().toBareJid() + " - " + features.toString());
2544					updateConversationUi();
2545				} else if (packet.getType() == IqPacket.TYPE.ERROR) {
2546					if (callback != null) {
2547						callback.onFetchFailed(conversation, packet.getError());
2548					}
2549				}
2550			}
2551		});
2552	}
2553
2554	public void pushNodeConfiguration(Account account, final String node, final Bundle options, final OnConfigurationPushed callback) {
2555		pushNodeConfiguration(account, account.getJid().toBareJid(), node, options, callback);
2556	}
2557
2558	public void pushNodeConfiguration(Account account, final Jid jid, final String node, final Bundle options, final OnConfigurationPushed callback) {
2559		sendIqPacket(account, mIqGenerator.requestPubsubConfiguration(jid, node), new OnIqPacketReceived() {
2560			@Override
2561			public void onIqPacketReceived(Account account, IqPacket packet) {
2562				if (packet.getType() == IqPacket.TYPE.RESULT) {
2563					Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub#owner");
2564					Element configuration = pubsub == null ? null : pubsub.findChild("configure");
2565					Element x = configuration == null ? null : configuration.findChild("x", Namespace.DATA);
2566					if (x != null) {
2567						Data data = Data.parse(x);
2568						data.submit(options);
2569						sendIqPacket(account, mIqGenerator.publishPubsubConfiguration(jid, node, data), new OnIqPacketReceived() {
2570							@Override
2571							public void onIqPacketReceived(Account account, IqPacket packet) {
2572								if (packet.getType() == IqPacket.TYPE.RESULT && callback != null) {
2573									callback.onPushSucceeded();
2574								} else {
2575									Log.d(Config.LOGTAG, packet.toString());
2576								}
2577							}
2578						});
2579					} else if (callback != null) {
2580						callback.onPushFailed();
2581					}
2582				} else if (callback != null) {
2583					callback.onPushFailed();
2584				}
2585			}
2586		});
2587	}
2588
2589	public void pushConferenceConfiguration(final Conversation conversation, final Bundle options, final OnConfigurationPushed callback) {
2590		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2591		request.setTo(conversation.getJid().toBareJid());
2592		request.query("http://jabber.org/protocol/muc#owner");
2593		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2594			@Override
2595			public void onIqPacketReceived(Account account, IqPacket packet) {
2596				if (packet.getType() == IqPacket.TYPE.RESULT) {
2597					Data data = Data.parse(packet.query().findChild("x", Namespace.DATA));
2598					data.submit(options);
2599					IqPacket set = new IqPacket(IqPacket.TYPE.SET);
2600					set.setTo(conversation.getJid().toBareJid());
2601					set.query("http://jabber.org/protocol/muc#owner").addChild(data);
2602					sendIqPacket(account, set, new OnIqPacketReceived() {
2603						@Override
2604						public void onIqPacketReceived(Account account, IqPacket packet) {
2605							if (callback != null) {
2606								if (packet.getType() == IqPacket.TYPE.RESULT) {
2607									callback.onPushSucceeded();
2608								} else {
2609									callback.onPushFailed();
2610								}
2611							}
2612						}
2613					});
2614				} else {
2615					if (callback != null) {
2616						callback.onPushFailed();
2617					}
2618				}
2619			}
2620		});
2621	}
2622
2623	public void pushSubjectToConference(final Conversation conference, final String subject) {
2624		MessagePacket packet = this.getMessageGenerator().conferenceSubject(conference, subject);
2625		this.sendMessagePacket(conference.getAccount(), packet);
2626		final MucOptions mucOptions = conference.getMucOptions();
2627		final MucOptions.User self = mucOptions.getSelf();
2628		if (self.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
2629			Bundle options = new Bundle();
2630			options.putString("muc#roomconfig_persistentroom", "1");
2631			options.putString("muc#roomconfig_roomname", subject);
2632			this.pushConferenceConfiguration(conference, options, null);
2633		}
2634	}
2635
2636	public void changeAffiliationInConference(final Conversation conference, Jid user, final MucOptions.Affiliation affiliation, final OnAffiliationChanged callback) {
2637		final Jid jid = user.toBareJid();
2638		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jid, affiliation.toString());
2639		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2640			@Override
2641			public void onIqPacketReceived(Account account, IqPacket packet) {
2642				if (packet.getType() == IqPacket.TYPE.RESULT) {
2643					conference.getMucOptions().changeAffiliation(jid, affiliation);
2644					getAvatarService().clear(conference);
2645					callback.onAffiliationChangedSuccessful(jid);
2646				} else {
2647					callback.onAffiliationChangeFailed(jid, R.string.could_not_change_affiliation);
2648				}
2649			}
2650		});
2651	}
2652
2653	public void changeAffiliationsInConference(final Conversation conference, MucOptions.Affiliation before, MucOptions.Affiliation after) {
2654		List<Jid> jids = new ArrayList<>();
2655		for (MucOptions.User user : conference.getMucOptions().getUsers()) {
2656			if (user.getAffiliation() == before && user.getRealJid() != null) {
2657				jids.add(user.getRealJid());
2658			}
2659		}
2660		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
2661		sendIqPacket(conference.getAccount(), request, mDefaultIqHandler);
2662	}
2663
2664	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role, final OnRoleChanged callback) {
2665		IqPacket request = this.mIqGenerator.changeRole(conference, nick, role.toString());
2666		Log.d(Config.LOGTAG, request.toString());
2667		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2668			@Override
2669			public void onIqPacketReceived(Account account, IqPacket packet) {
2670				Log.d(Config.LOGTAG, packet.toString());
2671				if (packet.getType() == IqPacket.TYPE.RESULT) {
2672					callback.onRoleChangedSuccessful(nick);
2673				} else {
2674					callback.onRoleChangeFailed(nick, R.string.could_not_change_role);
2675				}
2676			}
2677		});
2678	}
2679
2680	private void disconnect(Account account, boolean force) {
2681		if ((account.getStatus() == Account.State.ONLINE)
2682				|| (account.getStatus() == Account.State.DISABLED)) {
2683			final XmppConnection connection = account.getXmppConnection();
2684			if (!force) {
2685				List<Conversation> conversations = getConversations();
2686				for (Conversation conversation : conversations) {
2687					if (conversation.getAccount() == account) {
2688						if (conversation.getMode() == Conversation.MODE_MULTI) {
2689							leaveMuc(conversation, true);
2690						}
2691					}
2692				}
2693				sendOfflinePresence(account);
2694			}
2695			connection.disconnect(force);
2696		}
2697	}
2698
2699	@Override
2700	public IBinder onBind(Intent intent) {
2701		return mBinder;
2702	}
2703
2704	public void updateMessage(Message message) {
2705		databaseBackend.updateMessage(message);
2706		updateConversationUi();
2707	}
2708
2709	public void updateMessage(Message message, String uuid) {
2710		databaseBackend.updateMessage(message, uuid);
2711		updateConversationUi();
2712	}
2713
2714	protected void syncDirtyContacts(Account account) {
2715		for (Contact contact : account.getRoster().getContacts()) {
2716			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
2717				pushContactToServer(contact);
2718			}
2719			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
2720				deleteContactOnServer(contact);
2721			}
2722		}
2723	}
2724
2725	public void createContact(Contact contact) {
2726		boolean autoGrant = getBooleanPreference("grant_new_contacts", R.bool.grant_new_contacts);
2727		if (autoGrant) {
2728			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
2729			contact.setOption(Contact.Options.ASKING);
2730		}
2731		pushContactToServer(contact);
2732	}
2733
2734	public void pushContactToServer(final Contact contact) {
2735		contact.resetOption(Contact.Options.DIRTY_DELETE);
2736		contact.setOption(Contact.Options.DIRTY_PUSH);
2737		final Account account = contact.getAccount();
2738		if (account.getStatus() == Account.State.ONLINE) {
2739			final boolean ask = contact.getOption(Contact.Options.ASKING);
2740			final boolean sendUpdates = contact
2741					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
2742					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
2743			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2744			iq.query(Namespace.ROSTER).addChild(contact.asElement());
2745			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2746			if (sendUpdates) {
2747				sendPresencePacket(account,
2748						mPresenceGenerator.sendPresenceUpdatesTo(contact));
2749			}
2750			if (ask) {
2751				sendPresencePacket(account,
2752						mPresenceGenerator.requestPresenceUpdatesFrom(contact));
2753			}
2754		}
2755	}
2756
2757	public void publishAvatar(final Account account, final Uri image, final UiCallback<Avatar> callback) {
2758		new Thread(() -> {
2759			final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
2760			final int size = Config.AVATAR_SIZE;
2761			final Avatar avatar = getFileBackend().getPepAvatar(image, size, format);
2762			if (avatar != null) {
2763				if (!getFileBackend().save(avatar)) {
2764					callback.error(R.string.error_saving_avatar, avatar);
2765					return;
2766				}
2767				publishAvatar(account, avatar, callback);
2768			} else {
2769				callback.error(R.string.error_publish_avatar_converting, null);
2770			}
2771		}).start();
2772
2773	}
2774
2775	public void publishAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2776		IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
2777		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2778
2779			@Override
2780			public void onIqPacketReceived(Account account, IqPacket result) {
2781				if (result.getType() == IqPacket.TYPE.RESULT) {
2782					final IqPacket packet = XmppConnectionService.this.mIqGenerator.publishAvatarMetadata(avatar);
2783					sendIqPacket(account, packet, new OnIqPacketReceived() {
2784						@Override
2785						public void onIqPacketReceived(Account account, IqPacket result) {
2786							if (result.getType() == IqPacket.TYPE.RESULT) {
2787								if (account.setAvatar(avatar.getFilename())) {
2788									getAvatarService().clear(account);
2789									databaseBackend.updateAccount(account);
2790								}
2791								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": published avatar " + (avatar.size / 1024) + "KiB");
2792								if (callback != null) {
2793									callback.success(avatar);
2794								}
2795							} else {
2796								if (callback != null) {
2797									callback.error(R.string.error_publish_avatar_server_reject, avatar);
2798								}
2799							}
2800						}
2801					});
2802				} else {
2803					Element error = result.findChild("error");
2804					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": server rejected avatar " + (avatar.size / 1024) + "KiB " + (error != null ? error.toString() : ""));
2805					if (callback != null) {
2806						callback.error(R.string.error_publish_avatar_server_reject, avatar);
2807					}
2808				}
2809			}
2810		});
2811	}
2812
2813	public void republishAvatarIfNeeded(Account account) {
2814		if (account.getAxolotlService().isPepBroken()) {
2815			Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": skipping republication of avatar because pep is broken");
2816			return;
2817		}
2818		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2819		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2820
2821			private Avatar parseAvatar(IqPacket packet) {
2822				Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub");
2823				if (pubsub != null) {
2824					Element items = pubsub.findChild("items");
2825					if (items != null) {
2826						return Avatar.parseMetadata(items);
2827					}
2828				}
2829				return null;
2830			}
2831
2832			private boolean errorIsItemNotFound(IqPacket packet) {
2833				Element error = packet.findChild("error");
2834				return packet.getType() == IqPacket.TYPE.ERROR
2835						&& error != null
2836						&& error.hasChild("item-not-found");
2837			}
2838
2839			@Override
2840			public void onIqPacketReceived(Account account, IqPacket packet) {
2841				if (packet.getType() == IqPacket.TYPE.RESULT || errorIsItemNotFound(packet)) {
2842					Avatar serverAvatar = parseAvatar(packet);
2843					if (serverAvatar == null && account.getAvatar() != null) {
2844						Avatar avatar = fileBackend.getStoredPepAvatar(account.getAvatar());
2845						if (avatar != null) {
2846							Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": avatar on server was null. republishing");
2847							publishAvatar(account, fileBackend.getStoredPepAvatar(account.getAvatar()), null);
2848						} else {
2849							Log.e(Config.LOGTAG, account.getJid().toBareJid() + ": error rereading avatar");
2850						}
2851					}
2852				}
2853			}
2854		});
2855	}
2856
2857	public void fetchAvatar(Account account, Avatar avatar) {
2858		fetchAvatar(account, avatar, null);
2859	}
2860
2861	public void fetchAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2862		final String KEY = generateFetchKey(account, avatar);
2863		synchronized (this.mInProgressAvatarFetches) {
2864			if (!this.mInProgressAvatarFetches.contains(KEY)) {
2865				switch (avatar.origin) {
2866					case PEP:
2867						this.mInProgressAvatarFetches.add(KEY);
2868						fetchAvatarPep(account, avatar, callback);
2869						break;
2870					case VCARD:
2871						this.mInProgressAvatarFetches.add(KEY);
2872						fetchAvatarVcard(account, avatar, callback);
2873						break;
2874				}
2875			}
2876		}
2877	}
2878
2879	private void fetchAvatarPep(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2880		IqPacket packet = this.mIqGenerator.retrievePepAvatar(avatar);
2881		sendIqPacket(account, packet, new OnIqPacketReceived() {
2882
2883			@Override
2884			public void onIqPacketReceived(Account account, IqPacket result) {
2885				synchronized (mInProgressAvatarFetches) {
2886					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2887				}
2888				final String ERROR = account.getJid().toBareJid()
2889						+ ": fetching avatar for " + avatar.owner + " failed ";
2890				if (result.getType() == IqPacket.TYPE.RESULT) {
2891					avatar.image = mIqParser.avatarData(result);
2892					if (avatar.image != null) {
2893						if (getFileBackend().save(avatar)) {
2894							if (account.getJid().toBareJid().equals(avatar.owner)) {
2895								if (account.setAvatar(avatar.getFilename())) {
2896									databaseBackend.updateAccount(account);
2897								}
2898								getAvatarService().clear(account);
2899								updateConversationUi();
2900								updateAccountUi();
2901							} else {
2902								Contact contact = account.getRoster()
2903										.getContact(avatar.owner);
2904								contact.setAvatar(avatar);
2905								getAvatarService().clear(contact);
2906								updateConversationUi();
2907								updateRosterUi();
2908							}
2909							if (callback != null) {
2910								callback.success(avatar);
2911							}
2912							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2913									+ ": successfully fetched pep avatar for " + avatar.owner);
2914							return;
2915						}
2916					} else {
2917
2918						Log.d(Config.LOGTAG, ERROR + "(parsing error)");
2919					}
2920				} else {
2921					Element error = result.findChild("error");
2922					if (error == null) {
2923						Log.d(Config.LOGTAG, ERROR + "(server error)");
2924					} else {
2925						Log.d(Config.LOGTAG, ERROR + error.toString());
2926					}
2927				}
2928				if (callback != null) {
2929					callback.error(0, null);
2930				}
2931
2932			}
2933		});
2934	}
2935
2936	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2937		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
2938		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2939			@Override
2940			public void onIqPacketReceived(Account account, IqPacket packet) {
2941				synchronized (mInProgressAvatarFetches) {
2942					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2943				}
2944				if (packet.getType() == IqPacket.TYPE.RESULT) {
2945					Element vCard = packet.findChild("vCard", "vcard-temp");
2946					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
2947					String image = photo != null ? photo.findChildContent("BINVAL") : null;
2948					if (image != null) {
2949						avatar.image = image;
2950						if (getFileBackend().save(avatar)) {
2951							Log.d(Config.LOGTAG, account.getJid().toBareJid()
2952									+ ": successfully fetched vCard avatar for " + avatar.owner);
2953							if (avatar.owner.isBareJid()) {
2954								if (account.getJid().toBareJid().equals(avatar.owner) && account.getAvatar() == null) {
2955									Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": had no avatar. replacing with vcard");
2956									account.setAvatar(avatar.getFilename());
2957									databaseBackend.updateAccount(account);
2958									getAvatarService().clear(account);
2959									updateAccountUi();
2960								} else {
2961									Contact contact = account.getRoster().getContact(avatar.owner);
2962									contact.setAvatar(avatar);
2963									getAvatarService().clear(contact);
2964									updateRosterUi();
2965								}
2966								updateConversationUi();
2967							} else {
2968								Conversation conversation = find(account, avatar.owner.toBareJid());
2969								if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
2970									MucOptions.User user = conversation.getMucOptions().findUserByFullJid(avatar.owner);
2971									if (user != null) {
2972										if (user.setAvatar(avatar)) {
2973											getAvatarService().clear(user);
2974											updateConversationUi();
2975											updateMucRosterUi();
2976										}
2977									}
2978								}
2979							}
2980						}
2981					}
2982				}
2983			}
2984		});
2985	}
2986
2987	public void checkForAvatar(Account account, final UiCallback<Avatar> callback) {
2988		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2989		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2990
2991			@Override
2992			public void onIqPacketReceived(Account account, IqPacket packet) {
2993				if (packet.getType() == IqPacket.TYPE.RESULT) {
2994					Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub");
2995					if (pubsub != null) {
2996						Element items = pubsub.findChild("items");
2997						if (items != null) {
2998							Avatar avatar = Avatar.parseMetadata(items);
2999							if (avatar != null) {
3000								avatar.owner = account.getJid().toBareJid();
3001								if (fileBackend.isAvatarCached(avatar)) {
3002									if (account.setAvatar(avatar.getFilename())) {
3003										databaseBackend.updateAccount(account);
3004									}
3005									getAvatarService().clear(account);
3006									callback.success(avatar);
3007								} else {
3008									fetchAvatarPep(account, avatar, callback);
3009								}
3010								return;
3011							}
3012						}
3013					}
3014				}
3015				callback.error(0, null);
3016			}
3017		});
3018	}
3019
3020	public void deleteContactOnServer(Contact contact) {
3021		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
3022		contact.resetOption(Contact.Options.DIRTY_PUSH);
3023		contact.setOption(Contact.Options.DIRTY_DELETE);
3024		Account account = contact.getAccount();
3025		if (account.getStatus() == Account.State.ONLINE) {
3026			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
3027			Element item = iq.query(Namespace.ROSTER).addChild("item");
3028			item.setAttribute("jid", contact.getJid().toString());
3029			item.setAttribute("subscription", "remove");
3030			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
3031		}
3032	}
3033
3034	public void updateConversation(final Conversation conversation) {
3035		mDatabaseWriterExecutor.execute(new Runnable() {
3036			@Override
3037			public void run() {
3038				databaseBackend.updateConversation(conversation);
3039			}
3040		});
3041	}
3042
3043	private void reconnectAccount(final Account account, final boolean force, final boolean interactive) {
3044		synchronized (account) {
3045			XmppConnection connection = account.getXmppConnection();
3046			if (connection == null) {
3047				connection = createConnection(account);
3048				account.setXmppConnection(connection);
3049			}
3050			boolean hasInternet = hasInternetConnection();
3051			if (account.isEnabled() && hasInternet) {
3052				if (!force) {
3053					disconnect(account, false);
3054				}
3055				Thread thread = new Thread(connection);
3056				connection.setInteractive(interactive);
3057				connection.prepareNewConnection();
3058				connection.interrupt();
3059				thread.start();
3060				scheduleWakeUpCall(Config.CONNECT_DISCO_TIMEOUT, account.getUuid().hashCode());
3061			} else {
3062				disconnect(account, force || account.getTrueStatus().isError() || !hasInternet);
3063				account.getRoster().clearPresences();
3064				connection.resetEverything();
3065				final AxolotlService axolotlService = account.getAxolotlService();
3066				if (axolotlService != null) {
3067					axolotlService.resetBrokenness();
3068				}
3069				if (!hasInternet) {
3070					account.setStatus(Account.State.NO_INTERNET);
3071				}
3072			}
3073		}
3074	}
3075
3076	public void reconnectAccountInBackground(final Account account) {
3077		new Thread(new Runnable() {
3078			@Override
3079			public void run() {
3080				reconnectAccount(account, false, true);
3081			}
3082		}).start();
3083	}
3084
3085	public void invite(Conversation conversation, Jid contact) {
3086		Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": inviting " + contact + " to " + conversation.getJid().toBareJid());
3087		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
3088		sendMessagePacket(conversation.getAccount(), packet);
3089	}
3090
3091	public void directInvite(Conversation conversation, Jid jid) {
3092		MessagePacket packet = mMessageGenerator.directInvite(conversation, jid);
3093		sendMessagePacket(conversation.getAccount(), packet);
3094	}
3095
3096	public void resetSendingToWaiting(Account account) {
3097		for (Conversation conversation : getConversations()) {
3098			if (conversation.getAccount() == account) {
3099				conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
3100
3101					@Override
3102					public void onMessageFound(Message message) {
3103						markMessage(message, Message.STATUS_WAITING);
3104					}
3105				});
3106			}
3107		}
3108	}
3109
3110	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status) {
3111		return markMessage(account, recipient, uuid, status, null);
3112	}
3113
3114	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status, String errorMessage) {
3115		if (uuid == null) {
3116			return null;
3117		}
3118		for (Conversation conversation : getConversations()) {
3119			if (conversation.getJid().toBareJid().equals(recipient) && conversation.getAccount() == account) {
3120				final Message message = conversation.findSentMessageWithUuidOrRemoteId(uuid);
3121				if (message != null) {
3122					markMessage(message, status, errorMessage);
3123				}
3124				return message;
3125			}
3126		}
3127		return null;
3128	}
3129
3130	public boolean markMessage(Conversation conversation, String uuid, int status, String serverMessageId) {
3131		if (uuid == null) {
3132			return false;
3133		} else {
3134			Message message = conversation.findSentMessageWithUuid(uuid);
3135			if (message != null) {
3136				if (message.getServerMsgId() == null) {
3137					message.setServerMsgId(serverMessageId);
3138				}
3139				markMessage(message, status);
3140				return true;
3141			} else {
3142				return false;
3143			}
3144		}
3145	}
3146
3147	public void markMessage(Message message, int status) {
3148		markMessage(message, status, null);
3149	}
3150
3151
3152	public void markMessage(Message message, int status, String errorMessage) {
3153		if (status == Message.STATUS_SEND_FAILED
3154				&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
3155				.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
3156			return;
3157		}
3158		message.setErrorMessage(errorMessage);
3159		message.setStatus(status);
3160		databaseBackend.updateMessage(message);
3161		updateConversationUi();
3162	}
3163
3164	private SharedPreferences getPreferences() {
3165		return PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
3166	}
3167
3168	public long getAutomaticMessageDeletionDate() {
3169		final long timeout = getLongPreference(SettingsActivity.AUTOMATIC_MESSAGE_DELETION, R.integer.automatic_message_deletion);
3170		return timeout == 0 ? timeout : (System.currentTimeMillis() - (timeout * 1000));
3171	}
3172
3173	public long getLongPreference(String name, @IntegerRes int res) {
3174		long defaultValue = getResources().getInteger(res);
3175		try {
3176			return Long.parseLong(getPreferences().getString(name, String.valueOf(defaultValue)));
3177		} catch (NumberFormatException e) {
3178			return defaultValue;
3179		}
3180	}
3181
3182	public boolean getBooleanPreference(String name, @BoolRes int res) {
3183		return getPreferences().getBoolean(name, getResources().getBoolean(res));
3184	}
3185
3186	public boolean confirmMessages() {
3187		return getBooleanPreference("confirm_messages", R.bool.confirm_messages);
3188	}
3189
3190	public boolean allowMessageCorrection() {
3191		return getBooleanPreference("allow_message_correction", R.bool.allow_message_correction);
3192	}
3193
3194	public boolean sendChatStates() {
3195		return getBooleanPreference("chat_states", R.bool.chat_states);
3196	}
3197
3198	private boolean respectAutojoin() {
3199		return getBooleanPreference("autojoin", R.bool.autojoin);
3200	}
3201
3202	public boolean indicateReceived() {
3203		return getBooleanPreference("indicate_received", R.bool.indicate_received);
3204	}
3205
3206	public boolean useTorToConnect() {
3207		return Config.FORCE_ORBOT || getBooleanPreference("use_tor", R.bool.use_tor);
3208	}
3209
3210	public boolean showExtendedConnectionOptions() {
3211		return getBooleanPreference("show_connection_options", R.bool.show_connection_options);
3212	}
3213
3214	public boolean broadcastLastActivity() {
3215		return getBooleanPreference(SettingsActivity.BROADCAST_LAST_ACTIVITY, R.bool.last_activity);
3216	}
3217
3218	public int unreadCount() {
3219		int count = 0;
3220		for (Conversation conversation : getConversations()) {
3221			count += conversation.unreadCount();
3222		}
3223		return count;
3224	}
3225
3226
3227	public void showErrorToastInUi(int resId) {
3228		if (mOnShowErrorToast != null) {
3229			mOnShowErrorToast.onShowErrorToast(resId);
3230		}
3231	}
3232
3233	public void updateConversationUi() {
3234		if (mOnConversationUpdate != null) {
3235			mOnConversationUpdate.onConversationUpdate();
3236		}
3237	}
3238
3239	public void updateAccountUi() {
3240		if (mOnAccountUpdate != null) {
3241			mOnAccountUpdate.onAccountUpdate();
3242		}
3243	}
3244
3245	public void updateRosterUi() {
3246		if (mOnRosterUpdate != null) {
3247			mOnRosterUpdate.onRosterUpdate();
3248		}
3249	}
3250
3251	public boolean displayCaptchaRequest(Account account, String id, Data data, Bitmap captcha) {
3252		if (mOnCaptchaRequested != null) {
3253			DisplayMetrics metrics = getApplicationContext().getResources().getDisplayMetrics();
3254			Bitmap scaled = Bitmap.createScaledBitmap(captcha, (int) (captcha.getWidth() * metrics.scaledDensity),
3255					(int) (captcha.getHeight() * metrics.scaledDensity), false);
3256
3257			mOnCaptchaRequested.onCaptchaRequested(account, id, data, scaled);
3258			return true;
3259		}
3260		return false;
3261	}
3262
3263	public void updateBlocklistUi(final OnUpdateBlocklist.Status status) {
3264		if (mOnUpdateBlocklist != null) {
3265			mOnUpdateBlocklist.OnUpdateBlocklist(status);
3266		}
3267	}
3268
3269	public void updateMucRosterUi() {
3270		if (mOnMucRosterUpdate != null) {
3271			mOnMucRosterUpdate.onMucRosterUpdate();
3272		}
3273	}
3274
3275	public void keyStatusUpdated(AxolotlService.FetchStatus report) {
3276		if (mOnKeyStatusUpdated != null) {
3277			mOnKeyStatusUpdated.onKeyStatusUpdated(report);
3278		}
3279	}
3280
3281	public Account findAccountByJid(final Jid accountJid) {
3282		for (Account account : this.accounts) {
3283			if (account.getJid().toBareJid().equals(accountJid.toBareJid())) {
3284				return account;
3285			}
3286		}
3287		return null;
3288	}
3289
3290	public Conversation findConversationByUuid(String uuid) {
3291		for (Conversation conversation : getConversations()) {
3292			if (conversation.getUuid().equals(uuid)) {
3293				return conversation;
3294			}
3295		}
3296		return null;
3297	}
3298
3299	public boolean markRead(final Conversation conversation) {
3300		return markRead(conversation, true);
3301	}
3302
3303	public boolean markRead(final Conversation conversation, boolean clear) {
3304		if (clear) {
3305			mNotificationService.clear(conversation);
3306		}
3307		final List<Message> readMessages = conversation.markRead();
3308		if (readMessages.size() > 0) {
3309			Runnable runnable = new Runnable() {
3310				@Override
3311				public void run() {
3312					for (Message message : readMessages) {
3313						databaseBackend.updateMessage(message);
3314					}
3315				}
3316			};
3317			mDatabaseWriterExecutor.execute(runnable);
3318			updateUnreadCountBadge();
3319			return true;
3320		} else {
3321			return false;
3322		}
3323	}
3324
3325	public synchronized void updateUnreadCountBadge() {
3326		int count = unreadCount();
3327		if (unreadCount != count) {
3328			Log.d(Config.LOGTAG, "update unread count to " + count);
3329			if (count > 0) {
3330				ShortcutBadger.applyCount(getApplicationContext(), count);
3331			} else {
3332				ShortcutBadger.removeCount(getApplicationContext());
3333			}
3334			unreadCount = count;
3335		}
3336	}
3337
3338	public void sendReadMarker(final Conversation conversation) {
3339		final boolean isPrivateAndNonAnonymousMuc = conversation.getMode() == Conversation.MODE_MULTI && conversation.isPrivateAndNonAnonymous();
3340		final Message markable = conversation.getLatestMarkableMessage(isPrivateAndNonAnonymousMuc);
3341		if (this.markRead(conversation)) {
3342			updateConversationUi();
3343		}
3344		if (confirmMessages()
3345				&& markable != null
3346				&& (markable.trusted() || isPrivateAndNonAnonymousMuc)
3347				&& markable.getRemoteMsgId() != null) {
3348			Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": sending read marker to " + markable.getCounterpart().toString());
3349			Account account = conversation.getAccount();
3350			final Jid to = markable.getCounterpart();
3351			final boolean groupChat = conversation.getMode() == Conversation.MODE_MULTI;
3352			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId(), markable.getCounterpart(), groupChat);
3353			this.sendMessagePacket(conversation.getAccount(), packet);
3354		}
3355	}
3356
3357	public SecureRandom getRNG() {
3358		return this.mRandom;
3359	}
3360
3361	public MemorizingTrustManager getMemorizingTrustManager() {
3362		return this.mMemorizingTrustManager;
3363	}
3364
3365	public void setMemorizingTrustManager(MemorizingTrustManager trustManager) {
3366		this.mMemorizingTrustManager = trustManager;
3367	}
3368
3369	public void updateMemorizingTrustmanager() {
3370		final MemorizingTrustManager tm;
3371		final boolean dontTrustSystemCAs = getBooleanPreference("dont_trust_system_cas", R.bool.dont_trust_system_cas);
3372		if (dontTrustSystemCAs) {
3373			tm = new MemorizingTrustManager(getApplicationContext(), null);
3374		} else {
3375			tm = new MemorizingTrustManager(getApplicationContext());
3376		}
3377		setMemorizingTrustManager(tm);
3378	}
3379
3380	public PowerManager getPowerManager() {
3381		return this.pm;
3382	}
3383
3384	public LruCache<String, Bitmap> getBitmapCache() {
3385		return this.mBitmapCache;
3386	}
3387
3388	public void syncRosterToDisk(final Account account) {
3389		Runnable runnable = new Runnable() {
3390
3391			@Override
3392			public void run() {
3393				databaseBackend.writeRoster(account.getRoster());
3394			}
3395		};
3396		mDatabaseWriterExecutor.execute(runnable);
3397
3398	}
3399
3400	public List<String> getKnownHosts() {
3401		final List<String> hosts = new ArrayList<>();
3402		for (final Account account : getAccounts()) {
3403			if (!hosts.contains(account.getServer().toString())) {
3404				hosts.add(account.getServer().toString());
3405			}
3406			for (final Contact contact : account.getRoster().getContacts()) {
3407				if (contact.showInRoster()) {
3408					final String server = contact.getServer().toString();
3409					if (server != null && !hosts.contains(server)) {
3410						hosts.add(server);
3411					}
3412				}
3413			}
3414		}
3415		if (Config.DOMAIN_LOCK != null && !hosts.contains(Config.DOMAIN_LOCK)) {
3416			hosts.add(Config.DOMAIN_LOCK);
3417		}
3418		if (Config.MAGIC_CREATE_DOMAIN != null && !hosts.contains(Config.MAGIC_CREATE_DOMAIN)) {
3419			hosts.add(Config.MAGIC_CREATE_DOMAIN);
3420		}
3421		return hosts;
3422	}
3423
3424	public List<String> getKnownConferenceHosts() {
3425		final ArrayList<String> mucServers = new ArrayList<>();
3426		for (final Account account : accounts) {
3427			if (account.getXmppConnection() != null) {
3428				final String server = account.getXmppConnection().getMucServer();
3429				if (server != null && !mucServers.contains(server)) {
3430					mucServers.add(server);
3431				}
3432				for (Bookmark bookmark : account.getBookmarks()) {
3433					final Jid jid = bookmark.getJid();
3434					final String s = jid == null ? null : jid.getDomainpart();
3435					if (s != null && !mucServers.contains(s)) {
3436						mucServers.add(s);
3437					}
3438				}
3439			}
3440		}
3441		return mucServers;
3442	}
3443
3444	public void sendMessagePacket(Account account, MessagePacket packet) {
3445		XmppConnection connection = account.getXmppConnection();
3446		if (connection != null) {
3447			connection.sendMessagePacket(packet);
3448		}
3449	}
3450
3451	public void sendPresencePacket(Account account, PresencePacket packet) {
3452		XmppConnection connection = account.getXmppConnection();
3453		if (connection != null) {
3454			connection.sendPresencePacket(packet);
3455		}
3456	}
3457
3458	public void sendCreateAccountWithCaptchaPacket(Account account, String id, Data data) {
3459		final XmppConnection connection = account.getXmppConnection();
3460		if (connection != null) {
3461			IqPacket request = mIqGenerator.generateCreateAccountWithCaptcha(account, id, data);
3462			connection.sendUnmodifiedIqPacket(request, connection.registrationResponseListener,true);
3463		}
3464	}
3465
3466	public void sendIqPacket(final Account account, final IqPacket packet, final OnIqPacketReceived callback) {
3467		final XmppConnection connection = account.getXmppConnection();
3468		if (connection != null) {
3469			connection.sendIqPacket(packet, callback);
3470		}
3471	}
3472
3473	public void sendPresence(final Account account) {
3474		sendPresence(account, checkListeners() && broadcastLastActivity());
3475	}
3476
3477	private void sendPresence(final Account account, final boolean includeIdleTimestamp) {
3478		PresencePacket packet;
3479		if (manuallyChangePresence()) {
3480			packet = mPresenceGenerator.selfPresence(account, account.getPresenceStatus());
3481			String message = account.getPresenceStatusMessage();
3482			if (message != null && !message.isEmpty()) {
3483				packet.addChild(new Element("status").setContent(message));
3484			}
3485		} else {
3486			packet = mPresenceGenerator.selfPresence(account, getTargetPresence());
3487		}
3488		if (mLastActivity > 0 && includeIdleTimestamp) {
3489			long since = Math.min(mLastActivity, System.currentTimeMillis()); //don't send future dates
3490			packet.addChild("idle", Namespace.IDLE).setAttribute("since", AbstractGenerator.getTimestamp(since));
3491		}
3492		sendPresencePacket(account, packet);
3493	}
3494
3495	private void deactivateGracePeriod() {
3496		for (Account account : getAccounts()) {
3497			account.deactivateGracePeriod();
3498		}
3499	}
3500
3501	public void refreshAllPresences() {
3502		boolean includeIdleTimestamp = checkListeners() && broadcastLastActivity();
3503		for (Account account : getAccounts()) {
3504			if (account.isEnabled()) {
3505				sendPresence(account, includeIdleTimestamp);
3506			}
3507		}
3508	}
3509
3510	private void refreshAllGcmTokens() {
3511		for (Account account : getAccounts()) {
3512			if (account.isOnlineAndConnected() && mPushManagementService.available(account)) {
3513				mPushManagementService.registerPushTokenOnServer(account);
3514			}
3515		}
3516	}
3517
3518	private void sendOfflinePresence(final Account account) {
3519		Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": sending offline presence");
3520		sendPresencePacket(account, mPresenceGenerator.sendOfflinePresence(account));
3521	}
3522
3523	public MessageGenerator getMessageGenerator() {
3524		return this.mMessageGenerator;
3525	}
3526
3527	public PresenceGenerator getPresenceGenerator() {
3528		return this.mPresenceGenerator;
3529	}
3530
3531	public IqGenerator getIqGenerator() {
3532		return this.mIqGenerator;
3533	}
3534
3535	public IqParser getIqParser() {
3536		return this.mIqParser;
3537	}
3538
3539	public JingleConnectionManager getJingleConnectionManager() {
3540		return this.mJingleConnectionManager;
3541	}
3542
3543	public MessageArchiveService getMessageArchiveService() {
3544		return this.mMessageArchiveService;
3545	}
3546
3547	public List<Contact> findContacts(Jid jid, String accountJid) {
3548		ArrayList<Contact> contacts = new ArrayList<>();
3549		for (Account account : getAccounts()) {
3550			if ((account.isEnabled() || accountJid != null)
3551					&& (accountJid == null || accountJid.equals(account.getJid().toBareJid().toString()))) {
3552				Contact contact = account.getRoster().getContactFromRoster(jid);
3553				if (contact != null) {
3554					contacts.add(contact);
3555				}
3556			}
3557		}
3558		return contacts;
3559	}
3560
3561	public Conversation findFirstMuc(Jid jid) {
3562		for (Conversation conversation : getConversations()) {
3563			if (conversation.getAccount().isEnabled() && conversation.getJid().toBareJid().equals(jid.toBareJid()) && conversation.getMode() == Conversation.MODE_MULTI) {
3564				return conversation;
3565			}
3566		}
3567		return null;
3568	}
3569
3570	public NotificationService getNotificationService() {
3571		return this.mNotificationService;
3572	}
3573
3574	public HttpConnectionManager getHttpConnectionManager() {
3575		return this.mHttpConnectionManager;
3576	}
3577
3578	public void resendFailedMessages(final Message message) {
3579		final Collection<Message> messages = new ArrayList<>();
3580		Message current = message;
3581		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
3582			messages.add(current);
3583			if (current.mergeable(current.next())) {
3584				current = current.next();
3585			} else {
3586				break;
3587			}
3588		}
3589		for (final Message msg : messages) {
3590			msg.setTime(System.currentTimeMillis());
3591			markMessage(msg, Message.STATUS_WAITING);
3592			this.resendMessage(msg, false);
3593		}
3594	}
3595
3596	public void clearConversationHistory(final Conversation conversation) {
3597		final long clearDate;
3598		final String reference;
3599		if (conversation.countMessages() > 0) {
3600			Message latestMessage = conversation.getLatestMessage();
3601			clearDate = latestMessage.getTimeSent() + 1000;
3602			reference = latestMessage.getServerMsgId();
3603		} else {
3604			clearDate = System.currentTimeMillis();
3605			reference = null;
3606		}
3607		conversation.clearMessages();
3608		conversation.setHasMessagesLeftOnServer(false); //avoid messages getting loaded through mam
3609		conversation.setLastClearHistory(clearDate, reference);
3610		Runnable runnable = new Runnable() {
3611			@Override
3612			public void run() {
3613				databaseBackend.deleteMessagesInConversation(conversation);
3614				databaseBackend.updateConversation(conversation);
3615			}
3616		};
3617		mDatabaseWriterExecutor.execute(runnable);
3618	}
3619
3620	public boolean sendBlockRequest(final Blockable blockable, boolean reportSpam) {
3621		if (blockable != null && blockable.getBlockedJid() != null) {
3622			final Jid jid = blockable.getBlockedJid();
3623			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetBlockRequest(jid, reportSpam), new OnIqPacketReceived() {
3624
3625				@Override
3626				public void onIqPacketReceived(final Account account, final IqPacket packet) {
3627					if (packet.getType() == IqPacket.TYPE.RESULT) {
3628						account.getBlocklist().add(jid);
3629						updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
3630					}
3631				}
3632			});
3633			if (removeBlockedConversations(blockable.getAccount(), jid)) {
3634				updateConversationUi();
3635				return true;
3636			} else {
3637				return false;
3638			}
3639		} else {
3640			return false;
3641		}
3642	}
3643
3644	public boolean removeBlockedConversations(final Account account, final Jid blockedJid) {
3645		boolean removed = false;
3646		synchronized (this.conversations) {
3647			boolean domainJid = blockedJid.isDomainJid();
3648			for (Conversation conversation : this.conversations) {
3649				boolean jidMatches = (domainJid && blockedJid.getDomainpart().equals(conversation.getJid().getDomainpart()))
3650						|| blockedJid.equals(conversation.getJid().toBareJid());
3651				if (conversation.getAccount() == account
3652						&& conversation.getMode() == Conversation.MODE_SINGLE
3653						&& jidMatches) {
3654					this.conversations.remove(conversation);
3655					markRead(conversation);
3656					conversation.setStatus(Conversation.STATUS_ARCHIVED);
3657					Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": archiving conversation " + conversation.getJid().toBareJid() + " because jid was blocked");
3658					updateConversation(conversation);
3659					removed = true;
3660				}
3661			}
3662		}
3663		return removed;
3664	}
3665
3666	public void sendUnblockRequest(final Blockable blockable) {
3667		if (blockable != null && blockable.getJid() != null) {
3668			final Jid jid = blockable.getBlockedJid();
3669			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetUnblockRequest(jid), new OnIqPacketReceived() {
3670				@Override
3671				public void onIqPacketReceived(final Account account, final IqPacket packet) {
3672					if (packet.getType() == IqPacket.TYPE.RESULT) {
3673						account.getBlocklist().remove(jid);
3674						updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
3675					}
3676				}
3677			});
3678		}
3679	}
3680
3681	public void publishDisplayName(Account account) {
3682		String displayName = account.getDisplayName();
3683		if (displayName != null && !displayName.isEmpty()) {
3684			IqPacket publish = mIqGenerator.publishNick(displayName);
3685			sendIqPacket(account, publish, new OnIqPacketReceived() {
3686				@Override
3687				public void onIqPacketReceived(Account account, IqPacket packet) {
3688					if (packet.getType() == IqPacket.TYPE.ERROR) {
3689						Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": could not publish nick");
3690					}
3691				}
3692			});
3693		}
3694	}
3695
3696	public ServiceDiscoveryResult getCachedServiceDiscoveryResult(Pair<String, String> key) {
3697		ServiceDiscoveryResult result = discoCache.get(key);
3698		if (result != null) {
3699			return result;
3700		} else {
3701			result = databaseBackend.findDiscoveryResult(key.first, key.second);
3702			if (result != null) {
3703				discoCache.put(key, result);
3704			}
3705			return result;
3706		}
3707	}
3708
3709	public void fetchCaps(Account account, final Jid jid, final Presence presence) {
3710		final Pair<String, String> key = new Pair<>(presence.getHash(), presence.getVer());
3711		ServiceDiscoveryResult disco = getCachedServiceDiscoveryResult(key);
3712		if (disco != null) {
3713			presence.setServiceDiscoveryResult(disco);
3714		} else {
3715			if (!account.inProgressDiscoFetches.contains(key)) {
3716				account.inProgressDiscoFetches.add(key);
3717				IqPacket request = new IqPacket(IqPacket.TYPE.GET);
3718				request.setTo(jid);
3719				request.query("http://jabber.org/protocol/disco#info");
3720				Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": making disco request for " + key.second + " to " + jid);
3721				sendIqPacket(account, request, new OnIqPacketReceived() {
3722					@Override
3723					public void onIqPacketReceived(Account account, IqPacket discoPacket) {
3724						if (discoPacket.getType() == IqPacket.TYPE.RESULT) {
3725							ServiceDiscoveryResult disco = new ServiceDiscoveryResult(discoPacket);
3726							if (presence.getVer().equals(disco.getVer())) {
3727								databaseBackend.insertDiscoveryResult(disco);
3728								injectServiceDiscorveryResult(account.getRoster(), presence.getHash(), presence.getVer(), disco);
3729							} else {
3730								Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": mismatch in caps for contact " + jid + " " + presence.getVer() + " vs " + disco.getVer());
3731							}
3732						}
3733						account.inProgressDiscoFetches.remove(key);
3734					}
3735				});
3736			}
3737		}
3738	}
3739
3740	private void injectServiceDiscorveryResult(Roster roster, String hash, String ver, ServiceDiscoveryResult disco) {
3741		for (Contact contact : roster.getContacts()) {
3742			for (Presence presence : contact.getPresences().getPresences().values()) {
3743				if (hash.equals(presence.getHash()) && ver.equals(presence.getVer())) {
3744					presence.setServiceDiscoveryResult(disco);
3745				}
3746			}
3747		}
3748	}
3749
3750	public void fetchMamPreferences(Account account, final OnMamPreferencesFetched callback) {
3751		final boolean legacy = account.getXmppConnection().getFeatures().mamLegacy();
3752		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
3753		request.addChild("prefs", legacy ? Namespace.MAM_LEGACY : Namespace.MAM);
3754		sendIqPacket(account, request, new OnIqPacketReceived() {
3755			@Override
3756			public void onIqPacketReceived(Account account, IqPacket packet) {
3757				Element prefs = packet.findChild("prefs", legacy ? Namespace.MAM_LEGACY : Namespace.MAM);
3758				if (packet.getType() == IqPacket.TYPE.RESULT && prefs != null) {
3759					callback.onPreferencesFetched(prefs);
3760				} else {
3761					callback.onPreferencesFetchFailed();
3762				}
3763			}
3764		});
3765	}
3766
3767	public PushManagementService getPushManagementService() {
3768		return mPushManagementService;
3769	}
3770
3771	public Account getPendingAccount() {
3772		Account pending = null;
3773		for (Account account : getAccounts()) {
3774			if (account.isOptionSet(Account.OPTION_REGISTER)) {
3775				pending = account;
3776			} else {
3777				return null;
3778			}
3779		}
3780		return pending;
3781	}
3782
3783	public void changeStatus(Account account, Presence.Status status, String statusMessage, boolean send) {
3784		if (!statusMessage.isEmpty()) {
3785			databaseBackend.insertPresenceTemplate(new PresenceTemplate(status, statusMessage));
3786		}
3787		changeStatusReal(account, status, statusMessage, send);
3788	}
3789
3790	private void changeStatusReal(Account account, Presence.Status status, String statusMessage, boolean send) {
3791		account.setPresenceStatus(status);
3792		account.setPresenceStatusMessage(statusMessage);
3793		databaseBackend.updateAccount(account);
3794		if (account.isEnabled() && send) {
3795			sendPresence(account);
3796		}
3797	}
3798
3799	public void changeStatus(Presence.Status status, String statusMessage) {
3800		if (!statusMessage.isEmpty()) {
3801			databaseBackend.insertPresenceTemplate(new PresenceTemplate(status, statusMessage));
3802		}
3803		for (Account account : getAccounts()) {
3804			changeStatusReal(account, status, statusMessage, true);
3805		}
3806	}
3807
3808	public List<PresenceTemplate> getPresenceTemplates(Account account) {
3809		List<PresenceTemplate> templates = databaseBackend.getPresenceTemplates();
3810		for (PresenceTemplate template : account.getSelfContact().getPresences().asTemplates()) {
3811			if (!templates.contains(template)) {
3812				templates.add(0, template);
3813			}
3814		}
3815		return templates;
3816	}
3817
3818	public void saveConversationAsBookmark(Conversation conversation, String name) {
3819		Account account = conversation.getAccount();
3820		Bookmark bookmark = new Bookmark(account, conversation.getJid().toBareJid());
3821		if (!conversation.getJid().isBareJid()) {
3822			bookmark.setNick(conversation.getJid().getResourcepart());
3823		}
3824		if (name != null && !name.trim().isEmpty()) {
3825			bookmark.setBookmarkName(name.trim());
3826		}
3827		bookmark.setAutojoin(getPreferences().getBoolean("autojoin", getResources().getBoolean(R.bool.autojoin)));
3828		account.getBookmarks().add(bookmark);
3829		pushBookmarks(account);
3830		bookmark.setConversation(conversation);
3831	}
3832
3833	public boolean verifyFingerprints(Contact contact, List<XmppUri.Fingerprint> fingerprints) {
3834		boolean performedVerification = false;
3835		final AxolotlService axolotlService = contact.getAccount().getAxolotlService();
3836		for (XmppUri.Fingerprint fp : fingerprints) {
3837			if (fp.type == XmppUri.FingerprintType.OMEMO) {
3838				String fingerprint = "05" + fp.fingerprint.replaceAll("\\s", "");
3839				FingerprintStatus fingerprintStatus = axolotlService.getFingerprintTrust(fingerprint);
3840				if (fingerprintStatus != null) {
3841					if (!fingerprintStatus.isVerified()) {
3842						performedVerification = true;
3843						axolotlService.setFingerprintTrust(fingerprint, fingerprintStatus.toVerified());
3844					}
3845				} else {
3846					axolotlService.preVerifyFingerprint(contact, fingerprint);
3847				}
3848			}
3849		}
3850		return performedVerification;
3851	}
3852
3853	public boolean verifyFingerprints(Account account, List<XmppUri.Fingerprint> fingerprints) {
3854		final AxolotlService axolotlService = account.getAxolotlService();
3855		boolean verifiedSomething = false;
3856		for (XmppUri.Fingerprint fp : fingerprints) {
3857			if (fp.type == XmppUri.FingerprintType.OMEMO) {
3858				String fingerprint = "05" + fp.fingerprint.replaceAll("\\s", "");
3859				Log.d(Config.LOGTAG, "trying to verify own fp=" + fingerprint);
3860				FingerprintStatus fingerprintStatus = axolotlService.getFingerprintTrust(fingerprint);
3861				if (fingerprintStatus != null) {
3862					if (!fingerprintStatus.isVerified()) {
3863						axolotlService.setFingerprintTrust(fingerprint, fingerprintStatus.toVerified());
3864						verifiedSomething = true;
3865					}
3866				} else {
3867					axolotlService.preVerifyFingerprint(account, fingerprint);
3868					verifiedSomething = true;
3869				}
3870			}
3871		}
3872		return verifiedSomething;
3873	}
3874
3875	public boolean blindTrustBeforeVerification() {
3876		return getBooleanPreference(SettingsActivity.BLIND_TRUST_BEFORE_VERIFICATION, R.bool.btbv);
3877	}
3878
3879	public ShortcutService getShortcutService() {
3880		return mShortcutService;
3881	}
3882
3883	public interface OnMamPreferencesFetched {
3884		void onPreferencesFetched(Element prefs);
3885
3886		void onPreferencesFetchFailed();
3887	}
3888
3889	public void pushMamPreferences(Account account, Element prefs) {
3890		IqPacket set = new IqPacket(IqPacket.TYPE.SET);
3891		set.addChild(prefs);
3892		sendIqPacket(account, set, null);
3893	}
3894
3895	public interface OnAccountCreated {
3896		void onAccountCreated(Account account);
3897
3898		void informUser(int r);
3899	}
3900
3901	public interface OnMoreMessagesLoaded {
3902		void onMoreMessagesLoaded(int count, Conversation conversation);
3903
3904		void informUser(int r);
3905	}
3906
3907	public interface OnAccountPasswordChanged {
3908		void onPasswordChangeSucceeded();
3909
3910		void onPasswordChangeFailed();
3911	}
3912
3913	public interface OnAffiliationChanged {
3914		void onAffiliationChangedSuccessful(Jid jid);
3915
3916		void onAffiliationChangeFailed(Jid jid, int resId);
3917	}
3918
3919	public interface OnRoleChanged {
3920		void onRoleChangedSuccessful(String nick);
3921
3922		void onRoleChangeFailed(String nick, int resid);
3923	}
3924
3925	public interface OnConversationUpdate {
3926		void onConversationUpdate();
3927	}
3928
3929	public interface OnAccountUpdate {
3930		void onAccountUpdate();
3931	}
3932
3933	public interface OnCaptchaRequested {
3934		void onCaptchaRequested(Account account,
3935		                        String id,
3936		                        Data data,
3937		                        Bitmap captcha);
3938	}
3939
3940	public interface OnRosterUpdate {
3941		void onRosterUpdate();
3942	}
3943
3944	public interface OnMucRosterUpdate {
3945		void onMucRosterUpdate();
3946	}
3947
3948	public interface OnConferenceConfigurationFetched {
3949		void onConferenceConfigurationFetched(Conversation conversation);
3950
3951		void onFetchFailed(Conversation conversation, Element error);
3952	}
3953
3954	public interface OnConferenceJoined {
3955		void onConferenceJoined(Conversation conversation);
3956	}
3957
3958	public interface OnConfigurationPushed {
3959		void onPushSucceeded();
3960
3961		void onPushFailed();
3962	}
3963
3964	public interface OnShowErrorToast {
3965		void onShowErrorToast(int resId);
3966	}
3967
3968	public class XmppConnectionBinder extends Binder {
3969		public XmppConnectionService getService() {
3970			return XmppConnectionService.this;
3971		}
3972	}
3973}