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.Set;
  59import java.util.concurrent.CopyOnWriteArrayList;
  60import java.util.concurrent.CountDownLatch;
  61import java.util.concurrent.atomic.AtomicBoolean;
  62import java.util.concurrent.atomic.AtomicLong;
  63
  64import eu.siacs.conversations.Config;
  65import eu.siacs.conversations.R;
  66import eu.siacs.conversations.crypto.OmemoSetting;
  67import eu.siacs.conversations.crypto.PgpDecryptionService;
  68import eu.siacs.conversations.crypto.PgpEngine;
  69import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  70import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  71import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
  72import eu.siacs.conversations.entities.Account;
  73import eu.siacs.conversations.entities.Blockable;
  74import eu.siacs.conversations.entities.Bookmark;
  75import eu.siacs.conversations.entities.Contact;
  76import eu.siacs.conversations.entities.Conversation;
  77import eu.siacs.conversations.entities.DownloadableFile;
  78import eu.siacs.conversations.entities.Message;
  79import eu.siacs.conversations.entities.MucOptions;
  80import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  81import eu.siacs.conversations.entities.Presence;
  82import eu.siacs.conversations.entities.PresenceTemplate;
  83import eu.siacs.conversations.entities.Roster;
  84import eu.siacs.conversations.entities.ServiceDiscoveryResult;
  85import eu.siacs.conversations.entities.Transferable;
  86import eu.siacs.conversations.entities.TransferablePlaceholder;
  87import eu.siacs.conversations.generator.AbstractGenerator;
  88import eu.siacs.conversations.generator.IqGenerator;
  89import eu.siacs.conversations.generator.MessageGenerator;
  90import eu.siacs.conversations.generator.PresenceGenerator;
  91import eu.siacs.conversations.http.HttpConnectionManager;
  92import eu.siacs.conversations.http.AesGcmURLStreamHandlerFactory;
  93import eu.siacs.conversations.parser.AbstractParser;
  94import eu.siacs.conversations.parser.IqParser;
  95import eu.siacs.conversations.parser.MessageParser;
  96import eu.siacs.conversations.parser.PresenceParser;
  97import eu.siacs.conversations.persistance.DatabaseBackend;
  98import eu.siacs.conversations.persistance.FileBackend;
  99import eu.siacs.conversations.ui.SettingsActivity;
 100import eu.siacs.conversations.ui.UiCallback;
 101import eu.siacs.conversations.ui.interfaces.OnSearchResultsAvailable;
 102import eu.siacs.conversations.utils.ConversationsFileObserver;
 103import eu.siacs.conversations.utils.CryptoHelper;
 104import eu.siacs.conversations.utils.ExceptionHelper;
 105import eu.siacs.conversations.utils.MimeUtils;
 106import eu.siacs.conversations.utils.OnPhoneContactsLoadedListener;
 107import eu.siacs.conversations.utils.PRNGFixes;
 108import eu.siacs.conversations.utils.PhoneHelper;
 109import eu.siacs.conversations.utils.QuickLoader;
 110import eu.siacs.conversations.utils.ReplacingSerialSingleThreadExecutor;
 111import eu.siacs.conversations.utils.ReplacingTaskManager;
 112import eu.siacs.conversations.utils.Resolver;
 113import eu.siacs.conversations.utils.SerialSingleThreadExecutor;
 114import eu.siacs.conversations.utils.WakeLockHelper;
 115import eu.siacs.conversations.xml.Namespace;
 116import eu.siacs.conversations.utils.XmppUri;
 117import eu.siacs.conversations.xml.Element;
 118import eu.siacs.conversations.xmpp.OnBindListener;
 119import eu.siacs.conversations.xmpp.OnContactStatusChanged;
 120import eu.siacs.conversations.xmpp.OnIqPacketReceived;
 121import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
 122import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
 123import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
 124import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
 125import eu.siacs.conversations.xmpp.OnStatusChanged;
 126import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
 127import eu.siacs.conversations.xmpp.Patches;
 128import eu.siacs.conversations.xmpp.XmppConnection;
 129import eu.siacs.conversations.xmpp.chatstate.ChatState;
 130import eu.siacs.conversations.xmpp.forms.Data;
 131import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 132import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
 133import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
 134import eu.siacs.conversations.xmpp.mam.MamReference;
 135import eu.siacs.conversations.xmpp.pep.Avatar;
 136import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 137import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 138import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 139import me.leolin.shortcutbadger.ShortcutBadger;
 140import rocks.xmpp.addr.Jid;
 141
 142public class XmppConnectionService extends Service {
 143
 144	public static final String ACTION_REPLY_TO_CONVERSATION = "reply_to_conversations";
 145	public static final String ACTION_MARK_AS_READ = "mark_as_read";
 146	public static final String ACTION_SNOOZE = "snooze";
 147	public static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 148	public static final String ACTION_DISMISS_ERROR_NOTIFICATIONS = "dismiss_error";
 149	public static final String ACTION_TRY_AGAIN = "try_again";
 150	public static final String ACTION_IDLE_PING = "idle_ping";
 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 static final String ACTION_MERGE_PHONE_CONTACTS = "merge_phone_contacts";
 154
 155	static {
 156		URL.setURLStreamHandlerFactory(new AesGcmURLStreamHandlerFactory());
 157	}
 158
 159	public final CountDownLatch restoredFromDatabaseLatch = new CountDownLatch(1);
 160	private final SerialSingleThreadExecutor mFileAddingExecutor = new SerialSingleThreadExecutor("FileAdding");
 161	private final SerialSingleThreadExecutor mVideoCompressionExecutor = new SerialSingleThreadExecutor("VideoCompression");
 162	private final SerialSingleThreadExecutor mDatabaseWriterExecutor = new SerialSingleThreadExecutor("DatabaseWriter");
 163	private final SerialSingleThreadExecutor mDatabaseReaderExecutor = new SerialSingleThreadExecutor("DatabaseReader");
 164	private final SerialSingleThreadExecutor mNotificationExecutor = new SerialSingleThreadExecutor("NotificationExecutor");
 165	private final ReplacingTaskManager mRosterSyncTaskManager = new ReplacingTaskManager();
 166	private final IBinder mBinder = new XmppConnectionBinder();
 167	private final List<Conversation> conversations = new CopyOnWriteArrayList<>();
 168	private final IqGenerator mIqGenerator = new IqGenerator(this);
 169	private final List<String> mInProgressAvatarFetches = new ArrayList<>();
 170	private final HashSet<Jid> mLowPingTimeoutMode = new HashSet<>();
 171	private final OnIqPacketReceived mDefaultIqHandler = (account, packet) -> {
 172		if (packet.getType() != IqPacket.TYPE.RESULT) {
 173			Element error = packet.findChild("error");
 174			String text = error != null ? error.findChildContent("text") : null;
 175			if (text != null) {
 176				Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received iq error - " + text);
 177			}
 178		}
 179	};
 180	public DatabaseBackend databaseBackend;
 181	private ReplacingSerialSingleThreadExecutor mContactMergerExecutor = new ReplacingSerialSingleThreadExecutor(true);
 182	private long mLastActivity = 0;
 183	private ContentObserver contactObserver = new ContentObserver(null) {
 184		@Override
 185		public void onChange(boolean selfChange) {
 186			super.onChange(selfChange);
 187			Intent intent = new Intent(getApplicationContext(),
 188					XmppConnectionService.class);
 189			intent.setAction(ACTION_MERGE_PHONE_CONTACTS);
 190			startService(intent);
 191		}
 192	};
 193	private FileBackend fileBackend = new FileBackend(this);
 194	private MemorizingTrustManager mMemorizingTrustManager;
 195	private NotificationService mNotificationService = new NotificationService(this);
 196	private ShortcutService mShortcutService = new ShortcutService(this);
 197	private AtomicBoolean mInitialAddressbookSyncCompleted = new AtomicBoolean(false);
 198	private AtomicBoolean mForceForegroundService = new AtomicBoolean(false);
 199	private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 200	private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 201	private IqParser mIqParser = new IqParser(this);
 202	private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 203	public OnContactStatusChanged onContactStatusChanged = (contact, online) -> {
 204		Conversation conversation = find(getConversations(), contact);
 205		if (conversation != null) {
 206			if (online) {
 207				if (contact.getPresences().size() == 1) {
 208					sendUnsentMessages(conversation);
 209				}
 210			}
 211		}
 212	};
 213	private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 214	private List<Account> accounts;
 215	private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 216			this);
 217	private final OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 218
 219		@Override
 220		public void onJinglePacketReceived(Account account, JinglePacket packet) {
 221			mJingleConnectionManager.deliverPacket(account, packet);
 222		}
 223	};
 224	private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(
 225			this);
 226	private AvatarService mAvatarService = new AvatarService(this);
 227	private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 228	private PushManagementService mPushManagementService = new PushManagementService(this);
 229	private OnConversationUpdate mOnConversationUpdate = null;
 230	private final ConversationsFileObserver fileObserver = new ConversationsFileObserver(
 231			Environment.getExternalStorageDirectory().getAbsolutePath()
 232	) {
 233		@Override
 234		public void onEvent(int event, String path) {
 235			markFileDeleted(path);
 236		}
 237	};
 238	private final OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 239
 240		@Override
 241		public void onMessageAcknowledged(Account account, String uuid) {
 242			for (final Conversation conversation : getConversations()) {
 243				if (conversation.getAccount() == account) {
 244					Message message = conversation.findUnsentMessageWithUuid(uuid);
 245					if (message != null) {
 246						markMessage(message, Message.STATUS_SEND);
 247					}
 248				}
 249			}
 250		}
 251	};
 252	private int convChangedListenerCount = 0;
 253	private OnShowErrorToast mOnShowErrorToast = null;
 254	private int showErrorToastListenerCount = 0;
 255	private int unreadCount = -1;
 256	private OnAccountUpdate mOnAccountUpdate = null;
 257	private OnCaptchaRequested mOnCaptchaRequested = null;
 258	private int accountChangedListenerCount = 0;
 259	private int captchaRequestedListenerCount = 0;
 260	private OnRosterUpdate mOnRosterUpdate = null;
 261	private OnUpdateBlocklist mOnUpdateBlocklist = null;
 262	private int updateBlocklistListenerCount = 0;
 263	private int rosterChangedListenerCount = 0;
 264	private OnMucRosterUpdate mOnMucRosterUpdate = null;
 265	private int mucRosterChangedListenerCount = 0;
 266	private OnKeyStatusUpdated mOnKeyStatusUpdated = null;
 267	private final OnBindListener mOnBindListener = new OnBindListener() {
 268
 269		@Override
 270		public void onBind(final Account account) {
 271			synchronized (mInProgressAvatarFetches) {
 272				for (Iterator<String> iterator = mInProgressAvatarFetches.iterator(); iterator.hasNext(); ) {
 273					final String KEY = iterator.next();
 274					if (KEY.startsWith(account.getJid().asBareJid() + "_")) {
 275						iterator.remove();
 276					}
 277				}
 278			}
 279			boolean needsUpdating = account.setOption(Account.OPTION_LOGGED_IN_SUCCESSFULLY, true);
 280			needsUpdating |= account.setOption(Account.OPTION_HTTP_UPLOAD_AVAILABLE, account.getXmppConnection().getFeatures().httpUpload(0));
 281			if (needsUpdating) {
 282				databaseBackend.updateAccount(account);
 283			}
 284			account.getRoster().clearPresences();
 285			mJingleConnectionManager.cancelInTransmission();
 286			fetchRosterFromServer(account);
 287			fetchBookmarks(account);
 288			final boolean flexible = account.getXmppConnection().getFeatures().flexibleOfflineMessageRetrieval();
 289			final boolean catchup = getMessageArchiveService().inCatchup(account);
 290			if (flexible && catchup) {
 291				sendIqPacket(account, mIqGenerator.purgeOfflineMessages(), (acc, packet) -> {
 292					if (packet.getType() == IqPacket.TYPE.RESULT) {
 293						Log.d(Config.LOGTAG, acc.getJid().asBareJid() + ": successfully purged offline messages");
 294					}
 295				});
 296			}
 297			sendPresence(account);
 298			if (mPushManagementService.available(account)) {
 299				mPushManagementService.registerPushTokenOnServer(account);
 300			}
 301			connectMultiModeConversations(account);
 302			syncDirtyContacts(account);
 303		}
 304	};
 305	private int keyStatusUpdatedListenerCount = 0;
 306	private AtomicLong mLastExpiryRun = new AtomicLong(0);
 307	private SecureRandom mRandom;
 308	private LruCache<Pair<String, String>, ServiceDiscoveryResult> discoCache = new LruCache<>(20);
 309	private OnStatusChanged statusListener = new OnStatusChanged() {
 310
 311		@Override
 312		public void onStatusChanged(final Account account) {
 313			XmppConnection connection = account.getXmppConnection();
 314			if (mOnAccountUpdate != null) {
 315				mOnAccountUpdate.onAccountUpdate();
 316			}
 317			if (account.getStatus() == Account.State.ONLINE) {
 318				synchronized (mLowPingTimeoutMode) {
 319					if (mLowPingTimeoutMode.remove(account.getJid().asBareJid())) {
 320						Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": leaving low ping timeout mode");
 321					}
 322				}
 323				if (account.setShowErrorNotification(true)) {
 324					databaseBackend.updateAccount(account);
 325				}
 326				mMessageArchiveService.executePendingQueries(account);
 327				if (connection != null && connection.getFeatures().csi()) {
 328					if (checkListeners()) {
 329						Log.d(Config.LOGTAG, account.getJid().asBareJid() + " sending csi//inactive");
 330						connection.sendInactive();
 331					} else {
 332						Log.d(Config.LOGTAG, account.getJid().asBareJid() + " sending csi//active");
 333						connection.sendActive();
 334					}
 335				}
 336				List<Conversation> conversations = getConversations();
 337				for (Conversation conversation : conversations) {
 338					if (conversation.getAccount() == account && !account.pendingConferenceJoins.contains(conversation)) {
 339						sendUnsentMessages(conversation);
 340					}
 341				}
 342				for (Conversation conversation : account.pendingConferenceLeaves) {
 343					leaveMuc(conversation);
 344				}
 345				account.pendingConferenceLeaves.clear();
 346				for (Conversation conversation : account.pendingConferenceJoins) {
 347					joinMuc(conversation);
 348				}
 349				account.pendingConferenceJoins.clear();
 350				scheduleWakeUpCall(Config.PING_MAX_INTERVAL, account.getUuid().hashCode());
 351			} else if (account.getStatus() == Account.State.OFFLINE || account.getStatus() == Account.State.DISABLED) {
 352				resetSendingToWaiting(account);
 353				if (account.isEnabled() && isInLowPingTimeoutMode(account)) {
 354					Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": went into offline state during low ping mode. reconnecting now");
 355					reconnectAccount(account, true, false);
 356				} else {
 357					int timeToReconnect = mRandom.nextInt(10) + 2;
 358					scheduleWakeUpCall(timeToReconnect, account.getUuid().hashCode());
 359				}
 360			} else if (account.getStatus() == Account.State.REGISTRATION_SUCCESSFUL) {
 361				databaseBackend.updateAccount(account);
 362				reconnectAccount(account, true, false);
 363			} else if (account.getStatus() != Account.State.CONNECTING && account.getStatus() != Account.State.NO_INTERNET) {
 364				resetSendingToWaiting(account);
 365				if (connection != null && account.getStatus().isAttemptReconnect()) {
 366					final int next = connection.getTimeToNextAttempt();
 367					final boolean lowPingTimeoutMode = isInLowPingTimeoutMode(account);
 368					if (next <= 0) {
 369						Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": error connecting account. reconnecting now. lowPingTimeout=" + Boolean.toString(lowPingTimeoutMode));
 370						reconnectAccount(account, true, false);
 371					} else {
 372						final int attempt = connection.getAttempt() + 1;
 373						Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": error connecting account. try again in " + next + "s for the " + attempt + " time. lowPingTimeout=" + Boolean.toString(lowPingTimeoutMode));
 374						scheduleWakeUpCall(next, account.getUuid().hashCode());
 375					}
 376				}
 377			}
 378			getNotificationService().updateErrorNotification();
 379		}
 380	};
 381	private OpenPgpServiceConnection pgpServiceConnection;
 382	private PgpEngine mPgpEngine = null;
 383	private WakeLock wakeLock;
 384	private PowerManager pm;
 385	private LruCache<String, Bitmap> mBitmapCache;
 386	private EventReceiver mEventReceiver = new EventReceiver();
 387
 388	private static String generateFetchKey(Account account, final Avatar avatar) {
 389		return account.getJid().asBareJid() + "_" + avatar.owner + "_" + avatar.sha1sum;
 390	}
 391
 392	private boolean isInLowPingTimeoutMode(Account account) {
 393		synchronized (mLowPingTimeoutMode) {
 394			return mLowPingTimeoutMode.contains(account.getJid().asBareJid());
 395		}
 396	}
 397
 398	public void startForcingForegroundNotification() {
 399		mForceForegroundService.set(true);
 400		toggleForegroundService();
 401	}
 402
 403	public void stopForcingForegroundNotification() {
 404		mForceForegroundService.set(false);
 405		toggleForegroundService();
 406	}
 407
 408	public boolean areMessagesInitialized() {
 409		return this.restoredFromDatabaseLatch.getCount() == 0;
 410	}
 411
 412	public PgpEngine getPgpEngine() {
 413		if (!Config.supportOpenPgp()) {
 414			return null;
 415		} else if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 416			if (this.mPgpEngine == null) {
 417				this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 418						getApplicationContext(),
 419						pgpServiceConnection.getService()), this);
 420			}
 421			return mPgpEngine;
 422		} else {
 423			return null;
 424		}
 425
 426	}
 427
 428	public OpenPgpApi getOpenPgpApi() {
 429		if (!Config.supportOpenPgp()) {
 430			return null;
 431		} else if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 432			return new OpenPgpApi(this, pgpServiceConnection.getService());
 433		} else {
 434			return null;
 435		}
 436	}
 437
 438	public FileBackend getFileBackend() {
 439		return this.fileBackend;
 440	}
 441
 442	public AvatarService getAvatarService() {
 443		return this.mAvatarService;
 444	}
 445
 446	public void attachLocationToConversation(final Conversation conversation, final Uri uri, final UiCallback<Message> callback) {
 447		int encryption = conversation.getNextEncryption();
 448		if (encryption == Message.ENCRYPTION_PGP) {
 449			encryption = Message.ENCRYPTION_DECRYPTED;
 450		}
 451		Message message = new Message(conversation, uri.toString(), encryption);
 452		if (conversation.getNextCounterpart() != null) {
 453			message.setCounterpart(conversation.getNextCounterpart());
 454		}
 455		if (encryption == Message.ENCRYPTION_DECRYPTED) {
 456			getPgpEngine().encrypt(message, callback);
 457		} else {
 458			sendMessage(message);
 459			callback.success(message);
 460		}
 461	}
 462
 463	public void attachFileToConversation(final Conversation conversation, final Uri uri, final String type, final UiCallback<Message> callback) {
 464		if (FileBackend.weOwnFile(this, uri)) {
 465			Log.d(Config.LOGTAG, "trying to attach file that belonged to us");
 466			callback.error(R.string.security_error_invalid_file_access, null);
 467			return;
 468		}
 469		final Message message;
 470		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 471			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 472		} else {
 473			message = new Message(conversation, "", conversation.getNextEncryption());
 474		}
 475		message.setCounterpart(conversation.getNextCounterpart());
 476		message.setType(Message.TYPE_FILE);
 477		final AttachFileToConversationRunnable runnable = new AttachFileToConversationRunnable(this, uri, type, message, callback);
 478		if (runnable.isVideoMessage()) {
 479			mVideoCompressionExecutor.execute(runnable);
 480		} else {
 481			mFileAddingExecutor.execute(runnable);
 482		}
 483	}
 484
 485	public void attachImageToConversation(final Conversation conversation, final Uri uri, final UiCallback<Message> callback) {
 486		if (FileBackend.weOwnFile(this, uri)) {
 487			Log.d(Config.LOGTAG, "trying to attach file that belonged to us");
 488			callback.error(R.string.security_error_invalid_file_access, null);
 489			return;
 490		}
 491
 492		final String mimeType = MimeUtils.guessMimeTypeFromUri(this, uri);
 493		final String compressPictures = getCompressPicturesPreference();
 494
 495		if ("never".equals(compressPictures)
 496				|| ("auto".equals(compressPictures) && getFileBackend().useImageAsIs(uri))
 497				|| (mimeType != null && mimeType.endsWith("/gif"))) {
 498			Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": not compressing picture. sending as file");
 499			attachFileToConversation(conversation, uri, mimeType, callback);
 500			return;
 501		}
 502		final Message message;
 503		if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 504			message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 505		} else {
 506			message = new Message(conversation, "", conversation.getNextEncryption());
 507		}
 508		message.setCounterpart(conversation.getNextCounterpart());
 509		message.setType(Message.TYPE_IMAGE);
 510		mFileAddingExecutor.execute(() -> {
 511			try {
 512				getFileBackend().copyImageToPrivateStorage(message, uri);
 513				if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 514					final PgpEngine pgpEngine = getPgpEngine();
 515					if (pgpEngine != null) {
 516						pgpEngine.encrypt(message, callback);
 517					} else if (callback != null) {
 518						callback.error(R.string.unable_to_connect_to_keychain, null);
 519					}
 520				} else {
 521					sendMessage(message);
 522					callback.success(message);
 523				}
 524			} catch (final FileBackend.FileCopyException e) {
 525				callback.error(e.getResId(), message);
 526			}
 527		});
 528	}
 529
 530	public Conversation find(Bookmark bookmark) {
 531		return find(bookmark.getAccount(), bookmark.getJid());
 532	}
 533
 534	public Conversation find(final Account account, final Jid jid) {
 535		return find(getConversations(), account, jid);
 536	}
 537
 538	public void search(List<String> term, OnSearchResultsAvailable onSearchResultsAvailable) {
 539		MessageSearchTask.search(this, term, onSearchResultsAvailable);
 540	}
 541
 542	@Override
 543	public int onStartCommand(Intent intent, int flags, int startId) {
 544		final String action = intent == null ? null : intent.getAction();
 545		String pushedAccountHash = null;
 546		boolean interactive = false;
 547		if (action != null) {
 548			final String uuid = intent.getStringExtra("uuid");
 549			switch (action) {
 550				case ConnectivityManager.CONNECTIVITY_ACTION:
 551					if (hasInternetConnection() && Config.RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE) {
 552						resetAllAttemptCounts(true, false);
 553					}
 554					break;
 555				case ACTION_MERGE_PHONE_CONTACTS:
 556					if (restoredFromDatabaseLatch.getCount() == 0) {
 557						loadPhoneContacts();
 558					}
 559					return START_STICKY;
 560				case Intent.ACTION_SHUTDOWN:
 561					logoutAndSave(true);
 562					return START_NOT_STICKY;
 563				case ACTION_CLEAR_NOTIFICATION:
 564					mNotificationExecutor.execute(() -> {
 565						try {
 566							final Conversation c = findConversationByUuid(uuid);
 567							if (c != null) {
 568								mNotificationService.clear(c);
 569							} else {
 570								mNotificationService.clear();
 571							}
 572							restoredFromDatabaseLatch.await();
 573
 574						} catch (InterruptedException e) {
 575							Log.d(Config.LOGTAG, "unable to process clear notification");
 576						}
 577					});
 578					break;
 579				case ACTION_DISMISS_ERROR_NOTIFICATIONS:
 580					dismissErrorNotifications();
 581					break;
 582				case ACTION_TRY_AGAIN:
 583					resetAllAttemptCounts(false, true);
 584					interactive = true;
 585					break;
 586				case ACTION_REPLY_TO_CONVERSATION:
 587					Bundle remoteInput = RemoteInput.getResultsFromIntent(intent);
 588					if (remoteInput == null) {
 589						break;
 590					}
 591					final CharSequence body = remoteInput.getCharSequence("text_reply");
 592					final boolean dismissNotification = intent.getBooleanExtra("dismiss_notification", false);
 593					if (body == null || body.length() <= 0) {
 594						break;
 595					}
 596					mNotificationExecutor.execute(() -> {
 597						try {
 598							restoredFromDatabaseLatch.await();
 599							final Conversation c = findConversationByUuid(uuid);
 600							if (c != null) {
 601								directReply(c, body.toString(), dismissNotification);
 602							}
 603						} catch (InterruptedException e) {
 604							Log.d(Config.LOGTAG, "unable to process direct reply");
 605						}
 606					});
 607					break;
 608				case ACTION_MARK_AS_READ:
 609					mNotificationExecutor.execute(() -> {
 610						final Conversation c = findConversationByUuid(uuid);
 611						if (c == null) {
 612							Log.d(Config.LOGTAG, "received mark read intent for unknown conversation (" + uuid + ")");
 613							return;
 614						}
 615						try {
 616							restoredFromDatabaseLatch.await();
 617							sendReadMarker(c, null);
 618						} catch (InterruptedException e) {
 619							Log.d(Config.LOGTAG, "unable to process notification read marker for conversation " + c.getName());
 620						}
 621
 622					});
 623					break;
 624				case ACTION_SNOOZE:
 625					mNotificationExecutor.execute(() -> {
 626						final Conversation c = findConversationByUuid(uuid);
 627						if (c == null) {
 628							Log.d(Config.LOGTAG, "received snooze intent for unknown conversation (" + uuid + ")");
 629							return;
 630						}
 631						c.setMutedTill(System.currentTimeMillis() + 30 * 60 * 1000);
 632						mNotificationService.clear(c);
 633						updateConversation(c);
 634					});
 635				case AudioManager.RINGER_MODE_CHANGED_ACTION:
 636					if (dndOnSilentMode()) {
 637						refreshAllPresences();
 638					}
 639					break;
 640				case Intent.ACTION_SCREEN_ON:
 641					deactivateGracePeriod();
 642				case Intent.ACTION_SCREEN_OFF:
 643					if (awayWhenScreenOff()) {
 644						refreshAllPresences();
 645					}
 646					break;
 647				case ACTION_GCM_TOKEN_REFRESH:
 648					refreshAllGcmTokens();
 649					break;
 650				case ACTION_IDLE_PING:
 651					if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 652						scheduleNextIdlePing();
 653					}
 654					break;
 655				case ACTION_GCM_MESSAGE_RECEIVED:
 656					Log.d(Config.LOGTAG, "gcm push message arrived in service. extras=" + intent.getExtras());
 657					pushedAccountHash = intent.getStringExtra("account");
 658					break;
 659				case Intent.ACTION_SEND:
 660					Uri uri = intent.getData();
 661					if (uri != null) {
 662						Log.d(Config.LOGTAG, "received uri permission for " + uri.toString());
 663					}
 664					return START_STICKY;
 665			}
 666		}
 667		synchronized (this) {
 668			WakeLockHelper.acquire(wakeLock);
 669			boolean pingNow = ConnectivityManager.CONNECTIVITY_ACTION.equals(action);
 670			HashSet<Account> pingCandidates = new HashSet<>();
 671			for (Account account : accounts) {
 672				pingNow |= processAccountState(account,
 673						interactive,
 674						"ui".equals(action),
 675						CryptoHelper.getAccountFingerprint(account).equals(pushedAccountHash),
 676						pingCandidates);
 677			}
 678			if (pingNow) {
 679				for (Account account : pingCandidates) {
 680					final boolean lowTimeout = isInLowPingTimeoutMode(account);
 681					account.getXmppConnection().sendPing();
 682					Log.d(Config.LOGTAG, account.getJid().asBareJid() + " send ping (action=" + action + ",lowTimeout=" + Boolean.toString(lowTimeout) + ")");
 683					scheduleWakeUpCall(lowTimeout ? Config.LOW_PING_TIMEOUT : Config.PING_TIMEOUT, account.getUuid().hashCode());
 684				}
 685			}
 686			WakeLockHelper.release(wakeLock);
 687		}
 688		if (SystemClock.elapsedRealtime() - mLastExpiryRun.get() >= Config.EXPIRY_INTERVAL) {
 689			expireOldMessages();
 690		}
 691		return START_STICKY;
 692	}
 693
 694	private boolean processAccountState(Account account, boolean interactive, boolean isUiAction, boolean isAccountPushed, HashSet<Account> pingCandidates) {
 695		boolean pingNow = false;
 696		if (account.getStatus().isAttemptReconnect()) {
 697			if (!hasInternetConnection()) {
 698				account.setStatus(Account.State.NO_INTERNET);
 699				if (statusListener != null) {
 700					statusListener.onStatusChanged(account);
 701				}
 702			} else {
 703				if (account.getStatus() == Account.State.NO_INTERNET) {
 704					account.setStatus(Account.State.OFFLINE);
 705					if (statusListener != null) {
 706						statusListener.onStatusChanged(account);
 707					}
 708				}
 709				if (account.getStatus() == Account.State.ONLINE) {
 710					synchronized (mLowPingTimeoutMode) {
 711						long lastReceived = account.getXmppConnection().getLastPacketReceived();
 712						long lastSent = account.getXmppConnection().getLastPingSent();
 713						long pingInterval = isUiAction ? Config.PING_MIN_INTERVAL * 1000 : Config.PING_MAX_INTERVAL * 1000;
 714						long msToNextPing = (Math.max(lastReceived, lastSent) + pingInterval) - SystemClock.elapsedRealtime();
 715						int pingTimeout = mLowPingTimeoutMode.contains(account.getJid().asBareJid()) ? Config.LOW_PING_TIMEOUT * 1000 : Config.PING_TIMEOUT * 1000;
 716						long pingTimeoutIn = (lastSent + pingTimeout) - SystemClock.elapsedRealtime();
 717						if (lastSent > lastReceived) {
 718							if (pingTimeoutIn < 0) {
 719								Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": ping timeout");
 720								this.reconnectAccount(account, true, interactive);
 721							} else {
 722								int secs = (int) (pingTimeoutIn / 1000);
 723								this.scheduleWakeUpCall(secs, account.getUuid().hashCode());
 724							}
 725						} else {
 726							pingCandidates.add(account);
 727							if (isAccountPushed) {
 728								pingNow = true;
 729								if (mLowPingTimeoutMode.add(account.getJid().asBareJid())) {
 730									Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": entering low ping timeout mode");
 731								}
 732							} else if (msToNextPing <= 0) {
 733								pingNow = true;
 734							} else {
 735								this.scheduleWakeUpCall((int) (msToNextPing / 1000), account.getUuid().hashCode());
 736								if (mLowPingTimeoutMode.remove(account.getJid().asBareJid())) {
 737									Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": leaving low ping timeout mode");
 738								}
 739							}
 740						}
 741					}
 742				} else if (account.getStatus() == Account.State.OFFLINE) {
 743					reconnectAccount(account, true, interactive);
 744				} else if (account.getStatus() == Account.State.CONNECTING) {
 745					long secondsSinceLastConnect = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000;
 746					long secondsSinceLastDisco = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastDiscoStarted()) / 1000;
 747					long discoTimeout = Config.CONNECT_DISCO_TIMEOUT - secondsSinceLastDisco;
 748					long timeout = Config.CONNECT_TIMEOUT - secondsSinceLastConnect;
 749					if (timeout < 0) {
 750						Log.d(Config.LOGTAG, account.getJid() + ": time out during connect reconnecting (secondsSinceLast=" + secondsSinceLastConnect + ")");
 751						account.getXmppConnection().resetAttemptCount(false);
 752						reconnectAccount(account, true, interactive);
 753					} else if (discoTimeout < 0) {
 754						account.getXmppConnection().sendDiscoTimeout();
 755						scheduleWakeUpCall((int) Math.min(timeout, discoTimeout), account.getUuid().hashCode());
 756					} else {
 757						scheduleWakeUpCall((int) Math.min(timeout, discoTimeout), account.getUuid().hashCode());
 758					}
 759				} else {
 760					if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 761						reconnectAccount(account, true, interactive);
 762					}
 763				}
 764			}
 765		}
 766		return pingNow;
 767	}
 768
 769	public boolean isDataSaverDisabled() {
 770		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 771			ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
 772			return !connectivityManager.isActiveNetworkMetered()
 773					|| connectivityManager.getRestrictBackgroundStatus() == ConnectivityManager.RESTRICT_BACKGROUND_STATUS_DISABLED;
 774		} else {
 775			return true;
 776		}
 777	}
 778
 779	private void directReply(Conversation conversation, String body, final boolean dismissAfterReply) {
 780		Message message = new Message(conversation, body, conversation.getNextEncryption());
 781		message.markUnread();
 782		if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 783			getPgpEngine().encrypt(message, new UiCallback<Message>() {
 784				@Override
 785				public void success(Message message) {
 786					message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 787					sendMessage(message);
 788					if (dismissAfterReply) {
 789						markRead((Conversation) message.getConversation(), true);
 790					} else {
 791						mNotificationService.pushFromDirectReply(message);
 792					}
 793				}
 794
 795				@Override
 796				public void error(int errorCode, Message object) {
 797
 798				}
 799
 800				@Override
 801				public void userInputRequried(PendingIntent pi, Message object) {
 802
 803				}
 804			});
 805		} else {
 806			sendMessage(message);
 807			if (dismissAfterReply) {
 808				markRead(conversation, true);
 809			} else {
 810				mNotificationService.pushFromDirectReply(message);
 811			}
 812		}
 813	}
 814
 815	private boolean dndOnSilentMode() {
 816		return getBooleanPreference(SettingsActivity.DND_ON_SILENT_MODE, R.bool.dnd_on_silent_mode);
 817	}
 818
 819	private boolean manuallyChangePresence() {
 820		return getBooleanPreference(SettingsActivity.MANUALLY_CHANGE_PRESENCE, R.bool.manually_change_presence);
 821	}
 822
 823	private boolean treatVibrateAsSilent() {
 824		return getBooleanPreference(SettingsActivity.TREAT_VIBRATE_AS_SILENT, R.bool.treat_vibrate_as_silent);
 825	}
 826
 827	private boolean awayWhenScreenOff() {
 828		return getBooleanPreference(SettingsActivity.AWAY_WHEN_SCREEN_IS_OFF, R.bool.away_when_screen_off);
 829	}
 830
 831	private String getCompressPicturesPreference() {
 832		return getPreferences().getString("picture_compression", getResources().getString(R.string.picture_compression));
 833	}
 834
 835	private Presence.Status getTargetPresence() {
 836		if (dndOnSilentMode() && isPhoneSilenced()) {
 837			return Presence.Status.DND;
 838		} else if (awayWhenScreenOff() && !isInteractive()) {
 839			return Presence.Status.AWAY;
 840		} else {
 841			return Presence.Status.ONLINE;
 842		}
 843	}
 844
 845	@SuppressLint("NewApi")
 846	@SuppressWarnings("deprecation")
 847	public boolean isInteractive() {
 848		final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 849
 850		final boolean isScreenOn;
 851		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
 852			isScreenOn = pm.isScreenOn();
 853		} else {
 854			isScreenOn = pm.isInteractive();
 855		}
 856		return isScreenOn;
 857	}
 858
 859	private boolean isPhoneSilenced() {
 860		AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
 861		try {
 862			if (treatVibrateAsSilent()) {
 863				return audioManager.getRingerMode() != AudioManager.RINGER_MODE_NORMAL;
 864			} else {
 865				return audioManager.getRingerMode() == AudioManager.RINGER_MODE_SILENT;
 866			}
 867		} catch (Throwable throwable) {
 868			Log.d(Config.LOGTAG, "platform bug in isPhoneSilenced (" + throwable.getMessage() + ")");
 869			return false;
 870		}
 871	}
 872
 873	private void resetAllAttemptCounts(boolean reallyAll, boolean retryImmediately) {
 874		Log.d(Config.LOGTAG, "resetting all attempt counts");
 875		for (Account account : accounts) {
 876			if (account.hasErrorStatus() || reallyAll) {
 877				final XmppConnection connection = account.getXmppConnection();
 878				if (connection != null) {
 879					connection.resetAttemptCount(retryImmediately);
 880				}
 881			}
 882			if (account.setShowErrorNotification(true)) {
 883				databaseBackend.updateAccount(account);
 884			}
 885		}
 886		mNotificationService.updateErrorNotification();
 887	}
 888
 889	private void dismissErrorNotifications() {
 890		for (final Account account : this.accounts) {
 891			if (account.hasErrorStatus()) {
 892				Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": dismissing error notification");
 893				if (account.setShowErrorNotification(false)) {
 894					databaseBackend.updateAccount(account);
 895				}
 896			}
 897		}
 898	}
 899
 900	private void expireOldMessages() {
 901		expireOldMessages(false);
 902	}
 903
 904	public void expireOldMessages(final boolean resetHasMessagesLeftOnServer) {
 905		mLastExpiryRun.set(SystemClock.elapsedRealtime());
 906		mDatabaseWriterExecutor.execute(() -> {
 907			long timestamp = getAutomaticMessageDeletionDate();
 908			if (timestamp > 0) {
 909				databaseBackend.expireOldMessages(timestamp);
 910				synchronized (XmppConnectionService.this.conversations) {
 911					for (Conversation conversation : XmppConnectionService.this.conversations) {
 912						conversation.expireOldMessages(timestamp);
 913						if (resetHasMessagesLeftOnServer) {
 914							conversation.messagesLoaded.set(true);
 915							conversation.setHasMessagesLeftOnServer(true);
 916						}
 917					}
 918				}
 919				updateConversationUi();
 920			}
 921		});
 922	}
 923
 924	public boolean hasInternetConnection() {
 925		final ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
 926		try {
 927			final NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
 928			return activeNetwork != null && activeNetwork.isConnected();
 929		} catch (RuntimeException e) {
 930			Log.d(Config.LOGTAG, "unable to check for internet connection", e);
 931			return true; //if internet connection can not be checked it is probably best to just try
 932		}
 933	}
 934
 935	@SuppressLint("TrulyRandom")
 936	@Override
 937	public void onCreate() {
 938		OmemoSetting.load(this);
 939		ExceptionHelper.init(getApplicationContext());
 940		PRNGFixes.apply();
 941		Resolver.init(this);
 942		this.mRandom = new SecureRandom();
 943		updateMemorizingTrustmanager();
 944		final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
 945		final int cacheSize = maxMemory / 8;
 946		this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
 947			@Override
 948			protected int sizeOf(final String key, final Bitmap bitmap) {
 949				return bitmap.getByteCount() / 1024;
 950			}
 951		};
 952
 953		Log.d(Config.LOGTAG, "initializing database...");
 954		this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
 955		Log.d(Config.LOGTAG, "restoring accounts...");
 956		this.accounts = databaseBackend.getAccounts();
 957		final SharedPreferences.Editor editor = getPreferences().edit();
 958		if (this.accounts.size() == 0 && Arrays.asList("Sony", "Sony Ericsson").contains(Build.MANUFACTURER)) {
 959			editor.putBoolean(SettingsActivity.KEEP_FOREGROUND_SERVICE, true);
 960			Log.d(Config.LOGTAG, Build.MANUFACTURER + " is on blacklist. enabling foreground service");
 961		}
 962		editor.putBoolean(EventReceiver.SETTING_ENABLED_ACCOUNTS, hasEnabledAccounts()).apply();
 963		editor.apply();
 964
 965		restoreFromDatabase();
 966
 967		getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, contactObserver);
 968		new Thread(fileObserver::startWatching).start();
 969		if (Config.supportOpenPgp()) {
 970			this.pgpServiceConnection = new OpenPgpServiceConnection(this, "org.sufficientlysecure.keychain", new OpenPgpServiceConnection.OnBound() {
 971				@Override
 972				public void onBound(IOpenPgpService2 service) {
 973					for (Account account : accounts) {
 974						final PgpDecryptionService pgp = account.getPgpDecryptionService();
 975						if (pgp != null) {
 976							pgp.continueDecryption(true);
 977						}
 978					}
 979				}
 980
 981				@Override
 982				public void onError(Exception e) {
 983				}
 984			});
 985			this.pgpServiceConnection.bindToService();
 986		}
 987
 988		this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 989		this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "XmppConnectionService");
 990
 991		toggleForegroundService();
 992		updateUnreadCountBadge();
 993		toggleScreenEventReceiver();
 994		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 995			scheduleNextIdlePing();
 996		}
 997		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 998			registerReceiver(this.mEventReceiver, new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
 999		}
1000	}
1001
1002	@Override
1003	public void onTrimMemory(int level) {
1004		super.onTrimMemory(level);
1005		if (level >= TRIM_MEMORY_COMPLETE) {
1006			Log.d(Config.LOGTAG, "clear cache due to low memory");
1007			getBitmapCache().evictAll();
1008		}
1009	}
1010
1011	@Override
1012	public void onDestroy() {
1013		try {
1014			unregisterReceiver(this.mEventReceiver);
1015		} catch (IllegalArgumentException e) {
1016			//ignored
1017		}
1018		fileObserver.stopWatching();
1019		super.onDestroy();
1020	}
1021
1022	public void toggleScreenEventReceiver() {
1023		if (awayWhenScreenOff() && !manuallyChangePresence()) {
1024			final IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);
1025			filter.addAction(Intent.ACTION_SCREEN_OFF);
1026			registerReceiver(this.mEventReceiver, filter);
1027		} else {
1028			try {
1029				unregisterReceiver(this.mEventReceiver);
1030			} catch (IllegalArgumentException e) {
1031				//ignored
1032			}
1033		}
1034	}
1035
1036	public void toggleForegroundService() {
1037		if (mForceForegroundService.get() || (keepForegroundService() && hasEnabledAccounts())) {
1038			startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, this.mNotificationService.createForegroundNotification());
1039			Log.d(Config.LOGTAG, "started foreground service");
1040		} else {
1041			stopForeground(true);
1042			Log.d(Config.LOGTAG, "stopped foreground service");
1043		}
1044	}
1045
1046	public boolean keepForegroundService() {
1047		return getBooleanPreference(SettingsActivity.KEEP_FOREGROUND_SERVICE, R.bool.enable_foreground_service);
1048	}
1049
1050	@Override
1051	public void onTaskRemoved(final Intent rootIntent) {
1052		super.onTaskRemoved(rootIntent);
1053		if (keepForegroundService() || mForceForegroundService.get()) {
1054			Log.d(Config.LOGTAG, "ignoring onTaskRemoved because foreground service is activated");
1055		} else {
1056			this.logoutAndSave(false);
1057		}
1058	}
1059
1060	private void logoutAndSave(boolean stop) {
1061		int activeAccounts = 0;
1062		for (final Account account : accounts) {
1063			if (account.getStatus() != Account.State.DISABLED) {
1064				databaseBackend.writeRoster(account.getRoster());
1065				activeAccounts++;
1066			}
1067			if (account.getXmppConnection() != null) {
1068				new Thread(() -> disconnect(account, false)).start();
1069			}
1070		}
1071		if (stop || activeAccounts == 0) {
1072			Log.d(Config.LOGTAG, "good bye");
1073			stopSelf();
1074		}
1075	}
1076
1077	public void scheduleWakeUpCall(int seconds, int requestCode) {
1078		final long timeToWake = SystemClock.elapsedRealtime() + (seconds < 0 ? 1 : seconds + 1) * 1000;
1079		final AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
1080		Intent intent = new Intent(this, EventReceiver.class);
1081		intent.setAction("ping");
1082		PendingIntent pendingIntent = PendingIntent.getBroadcast(this, requestCode, intent, 0);
1083		try {
1084			alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, pendingIntent);
1085		} catch (RuntimeException e) {
1086			Log.e(Config.LOGTAG, "unable to schedule alarm for ping", e);
1087		}
1088	}
1089
1090	@TargetApi(Build.VERSION_CODES.M)
1091	private void scheduleNextIdlePing() {
1092		final long timeToWake = SystemClock.elapsedRealtime() + (Config.IDLE_PING_INTERVAL * 1000);
1093		final AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
1094		Intent intent = new Intent(this, EventReceiver.class);
1095		intent.setAction(ACTION_IDLE_PING);
1096		PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
1097		try {
1098			alarmManager.setAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, pendingIntent);
1099		} catch (RuntimeException e) {
1100			Log.d(Config.LOGTAG, "unable to schedule alarm for idle ping", e);
1101		}
1102	}
1103
1104	public XmppConnection createConnection(final Account account) {
1105		final XmppConnection connection = new XmppConnection(account, this);
1106		connection.setOnMessagePacketReceivedListener(this.mMessageParser);
1107		connection.setOnStatusChangedListener(this.statusListener);
1108		connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
1109		connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
1110		connection.setOnJinglePacketReceivedListener(this.jingleListener);
1111		connection.setOnBindListener(this.mOnBindListener);
1112		connection.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
1113		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mMessageArchiveService);
1114		connection.addOnAdvancedStreamFeaturesAvailableListener(this.mAvatarService);
1115		AxolotlService axolotlService = account.getAxolotlService();
1116		if (axolotlService != null) {
1117			connection.addOnAdvancedStreamFeaturesAvailableListener(axolotlService);
1118		}
1119		return connection;
1120	}
1121
1122	public void sendChatState(Conversation conversation) {
1123		if (sendChatStates()) {
1124			MessagePacket packet = mMessageGenerator.generateChatState(conversation);
1125			sendMessagePacket(conversation.getAccount(), packet);
1126		}
1127	}
1128
1129	private void sendFileMessage(final Message message, final boolean delay) {
1130		Log.d(Config.LOGTAG, "send file message");
1131		final Account account = message.getConversation().getAccount();
1132		if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1133				|| message.getConversation().getMode() == Conversation.MODE_MULTI) {
1134			mHttpConnectionManager.createNewUploadConnection(message, delay);
1135		} else {
1136			mJingleConnectionManager.createNewConnection(message);
1137		}
1138	}
1139
1140	public void sendMessage(final Message message) {
1141		sendMessage(message, false, false);
1142	}
1143
1144	private void sendMessage(final Message message, final boolean resend, final boolean delay) {
1145		final Account account = message.getConversation().getAccount();
1146		if (account.setShowErrorNotification(true)) {
1147			databaseBackend.updateAccount(account);
1148			mNotificationService.updateErrorNotification();
1149		}
1150		final Conversation conversation = (Conversation) message.getConversation();
1151		account.deactivateGracePeriod();
1152		MessagePacket packet = null;
1153		final boolean addToConversation = (conversation.getMode() != Conversation.MODE_MULTI
1154				|| !Patches.BAD_MUC_REFLECTION.contains(account.getServerIdentity()))
1155				&& !message.edited();
1156		boolean saveInDb = addToConversation;
1157		message.setStatus(Message.STATUS_WAITING);
1158
1159		if (account.isOnlineAndConnected()) {
1160			switch (message.getEncryption()) {
1161				case Message.ENCRYPTION_NONE:
1162					if (message.needsUploading()) {
1163						if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1164								|| conversation.getMode() == Conversation.MODE_MULTI
1165								|| message.fixCounterpart()) {
1166							this.sendFileMessage(message, delay);
1167						} else {
1168							break;
1169						}
1170					} else {
1171						packet = mMessageGenerator.generateChat(message);
1172					}
1173					break;
1174				case Message.ENCRYPTION_PGP:
1175				case Message.ENCRYPTION_DECRYPTED:
1176					if (message.needsUploading()) {
1177						if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1178								|| conversation.getMode() == Conversation.MODE_MULTI
1179								|| message.fixCounterpart()) {
1180							this.sendFileMessage(message, delay);
1181						} else {
1182							break;
1183						}
1184					} else {
1185						packet = mMessageGenerator.generatePgpChat(message);
1186					}
1187					break;
1188				case Message.ENCRYPTION_AXOLOTL:
1189					message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
1190					if (message.needsUploading()) {
1191						if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1192								|| conversation.getMode() == Conversation.MODE_MULTI
1193								|| message.fixCounterpart()) {
1194							this.sendFileMessage(message, delay);
1195						} else {
1196							break;
1197						}
1198					} else {
1199						XmppAxolotlMessage axolotlMessage = account.getAxolotlService().fetchAxolotlMessageFromCache(message);
1200						if (axolotlMessage == null) {
1201							account.getAxolotlService().preparePayloadMessage(message, delay);
1202						} else {
1203							packet = mMessageGenerator.generateAxolotlChat(message, axolotlMessage);
1204						}
1205					}
1206					break;
1207
1208			}
1209			if (packet != null) {
1210				if (account.getXmppConnection().getFeatures().sm()
1211						|| (conversation.getMode() == Conversation.MODE_MULTI && message.getCounterpart().isBareJid())) {
1212					message.setStatus(Message.STATUS_UNSEND);
1213				} else {
1214					message.setStatus(Message.STATUS_SEND);
1215				}
1216			}
1217		} else {
1218			switch (message.getEncryption()) {
1219				case Message.ENCRYPTION_DECRYPTED:
1220					if (!message.needsUploading()) {
1221						String pgpBody = message.getEncryptedBody();
1222						String decryptedBody = message.getBody();
1223						message.setBody(pgpBody); //TODO might throw NPE
1224						message.setEncryption(Message.ENCRYPTION_PGP);
1225						if (message.edited()) {
1226							message.setBody(decryptedBody);
1227							message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1228							databaseBackend.updateMessage(message, message.getEditedId());
1229							updateConversationUi();
1230							return;
1231						} else {
1232							databaseBackend.createMessage(message);
1233							saveInDb = false;
1234							message.setBody(decryptedBody);
1235							message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1236						}
1237					}
1238					break;
1239				case Message.ENCRYPTION_AXOLOTL:
1240					message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
1241					break;
1242			}
1243		}
1244
1245
1246		boolean mucMessage = conversation.getMode() == Conversation.MODE_MULTI && message.getType() != Message.TYPE_PRIVATE;
1247		if (mucMessage) {
1248			message.setCounterpart(conversation.getMucOptions().getSelf().getFullJid());
1249		}
1250
1251		if (resend) {
1252			if (packet != null && addToConversation) {
1253				if (account.getXmppConnection().getFeatures().sm() || mucMessage) {
1254					markMessage(message, Message.STATUS_UNSEND);
1255				} else {
1256					markMessage(message, Message.STATUS_SEND);
1257				}
1258			}
1259		} else {
1260			if (addToConversation) {
1261				conversation.add(message);
1262			}
1263			if (saveInDb) {
1264				databaseBackend.createMessage(message);
1265			} else if (message.edited()) {
1266				databaseBackend.updateMessage(message, message.getEditedId());
1267			}
1268			updateConversationUi();
1269		}
1270		if (packet != null) {
1271			if (delay) {
1272				mMessageGenerator.addDelay(packet, message.getTimeSent());
1273			}
1274			if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1275				if (this.sendChatStates()) {
1276					packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
1277				}
1278			}
1279			sendMessagePacket(account, packet);
1280		}
1281	}
1282
1283	private void sendUnsentMessages(final Conversation conversation) {
1284		conversation.findWaitingMessages(new Conversation.OnMessageFound() {
1285
1286			@Override
1287			public void onMessageFound(Message message) {
1288				resendMessage(message, true);
1289			}
1290		});
1291	}
1292
1293	public void resendMessage(final Message message, final boolean delay) {
1294		sendMessage(message, true, delay);
1295	}
1296
1297	public void fetchRosterFromServer(final Account account) {
1298		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1299		if (!"".equals(account.getRosterVersion())) {
1300			Log.d(Config.LOGTAG, account.getJid().asBareJid()
1301					+ ": fetching roster version " + account.getRosterVersion());
1302		} else {
1303			Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": fetching roster");
1304		}
1305		iqPacket.query(Namespace.ROSTER).setAttribute("ver", account.getRosterVersion());
1306		sendIqPacket(account, iqPacket, mIqParser);
1307	}
1308
1309	public void fetchBookmarks(final Account account) {
1310		final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1311		final Element query = iqPacket.query("jabber:iq:private");
1312		query.addChild("storage", "storage:bookmarks");
1313		final OnIqPacketReceived callback = new OnIqPacketReceived() {
1314
1315			@Override
1316			public void onIqPacketReceived(final Account account, final IqPacket packet) {
1317				if (packet.getType() == IqPacket.TYPE.RESULT) {
1318					final Element query = packet.query();
1319					final HashMap<Jid, Bookmark> bookmarks = new HashMap<>();
1320					final Element storage = query.findChild("storage", "storage:bookmarks");
1321					final boolean autojoin = respectAutojoin();
1322					if (storage != null) {
1323						for (final Element item : storage.getChildren()) {
1324							if (item.getName().equals("conference")) {
1325								final Bookmark bookmark = Bookmark.parse(item, account);
1326								Bookmark old = bookmarks.put(bookmark.getJid(), bookmark);
1327								if (old != null && old.getBookmarkName() != null && bookmark.getBookmarkName() == null) {
1328									bookmark.setBookmarkName(old.getBookmarkName());
1329								}
1330								Conversation conversation = find(bookmark);
1331								if (conversation != null) {
1332									bookmark.setConversation(conversation);
1333								} else if (bookmark.autojoin() && bookmark.getJid() != null && autojoin) {
1334									conversation = findOrCreateConversation(account, bookmark.getJid(), true, true, false);
1335									bookmark.setConversation(conversation);
1336								}
1337							}
1338						}
1339					}
1340					account.setBookmarks(new CopyOnWriteArrayList<>(bookmarks.values()));
1341				} else {
1342					Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": could not fetch bookmarks");
1343				}
1344			}
1345		};
1346		sendIqPacket(account, iqPacket, callback);
1347	}
1348
1349	public void pushBookmarks(Account account) {
1350		Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": pushing bookmarks");
1351		IqPacket iqPacket = new IqPacket(IqPacket.TYPE.SET);
1352		Element query = iqPacket.query("jabber:iq:private");
1353		Element storage = query.addChild("storage", "storage:bookmarks");
1354		for (Bookmark bookmark : account.getBookmarks()) {
1355			storage.addChild(bookmark);
1356		}
1357		sendIqPacket(account, iqPacket, mDefaultIqHandler);
1358	}
1359
1360	private void restoreFromDatabase() {
1361		synchronized (this.conversations) {
1362			final Map<String, Account> accountLookupTable = new Hashtable<>();
1363			for (Account account : this.accounts) {
1364				accountLookupTable.put(account.getUuid(), account);
1365			}
1366			Log.d(Config.LOGTAG, "restoring conversations...");
1367			final long startTimeConversationsRestore = SystemClock.elapsedRealtime();
1368			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
1369			for (Iterator<Conversation> iterator = conversations.listIterator(); iterator.hasNext(); ) {
1370				Conversation conversation = iterator.next();
1371				Account account = accountLookupTable.get(conversation.getAccountUuid());
1372				if (account != null) {
1373					conversation.setAccount(account);
1374				} else {
1375					Log.e(Config.LOGTAG, "unable to restore Conversations with " + conversation.getJid());
1376					iterator.remove();
1377				}
1378			}
1379			long diffConversationsRestore = SystemClock.elapsedRealtime() - startTimeConversationsRestore;
1380			Log.d(Config.LOGTAG, "finished restoring conversations in " + diffConversationsRestore + "ms");
1381			Runnable runnable = () -> {
1382				long deletionDate = getAutomaticMessageDeletionDate();
1383				mLastExpiryRun.set(SystemClock.elapsedRealtime());
1384				if (deletionDate > 0) {
1385					Log.d(Config.LOGTAG, "deleting messages that are older than " + AbstractGenerator.getTimestamp(deletionDate));
1386					databaseBackend.expireOldMessages(deletionDate);
1387				}
1388				Log.d(Config.LOGTAG, "restoring roster...");
1389				for (Account account : accounts) {
1390					databaseBackend.readRoster(account.getRoster());
1391					account.initAccountServices(XmppConnectionService.this); //roster needs to be loaded at this stage
1392				}
1393				getBitmapCache().evictAll();
1394				loadPhoneContacts();
1395				Log.d(Config.LOGTAG, "restoring messages...");
1396				final long startMessageRestore = SystemClock.elapsedRealtime();
1397				final Conversation quickLoad = QuickLoader.get(this.conversations);
1398				if (quickLoad != null) {
1399					restoreMessages(quickLoad);
1400					updateConversationUi();
1401					final long diffMessageRestore = SystemClock.elapsedRealtime() - startMessageRestore;
1402					Log.d(Config.LOGTAG,"quickly restored "+quickLoad.getName()+" after " + diffMessageRestore + "ms");
1403				}
1404				for (Conversation conversation : this.conversations) {
1405					if (quickLoad != conversation) {
1406						restoreMessages(conversation);
1407					}
1408				}
1409				mNotificationService.finishBacklog(false);
1410				restoredFromDatabaseLatch.countDown();
1411				final long diffMessageRestore = SystemClock.elapsedRealtime() - startMessageRestore;
1412				Log.d(Config.LOGTAG, "finished restoring messages in " + diffMessageRestore + "ms");
1413				updateConversationUi();
1414			};
1415			mDatabaseReaderExecutor.execute(runnable); //will contain one write command (expiry) but that's fine
1416		}
1417	}
1418
1419	private void restoreMessages(Conversation conversation) {
1420		conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1421		checkDeletedFiles(conversation);
1422		conversation.findUnsentTextMessages(message -> markMessage(message, Message.STATUS_WAITING));
1423		conversation.findUnreadMessages(message -> mNotificationService.pushFromBacklog(message));
1424	}
1425
1426	public void loadPhoneContacts() {
1427		mContactMergerExecutor.execute(() -> PhoneHelper.loadPhoneContacts(XmppConnectionService.this, new OnPhoneContactsLoadedListener() {
1428			@Override
1429			public void onPhoneContactsLoaded(List<Bundle> phoneContacts) {
1430				Log.d(Config.LOGTAG, "start merging phone contacts with roster");
1431				for (Account account : accounts) {
1432					List<Contact> withSystemAccounts = account.getRoster().getWithSystemAccounts();
1433					for (Bundle phoneContact : phoneContacts) {
1434						Jid jid;
1435						try {
1436							jid = Jid.of(phoneContact.getString("jid"));
1437						} catch (final IllegalArgumentException e) {
1438							continue;
1439						}
1440						final Contact contact = account.getRoster().getContact(jid);
1441						String systemAccount = phoneContact.getInt("phoneid")
1442								+ "#"
1443								+ phoneContact.getString("lookup");
1444						contact.setSystemAccount(systemAccount);
1445						boolean needsCacheClean = contact.setPhotoUri(phoneContact.getString("photouri"));
1446						needsCacheClean |= contact.setSystemName(phoneContact.getString("displayname"));
1447						if (needsCacheClean) {
1448							getAvatarService().clear(contact);
1449						}
1450						withSystemAccounts.remove(contact);
1451					}
1452					for (Contact contact : withSystemAccounts) {
1453						contact.setSystemAccount(null);
1454						boolean needsCacheClean = contact.setPhotoUri(null);
1455						needsCacheClean |= contact.setSystemName(null);
1456						if (needsCacheClean) {
1457							getAvatarService().clear(contact);
1458						}
1459					}
1460				}
1461				Log.d(Config.LOGTAG, "finished merging phone contacts");
1462				mShortcutService.refresh(mInitialAddressbookSyncCompleted.compareAndSet(false, true));
1463				updateAccountUi();
1464			}
1465		}));
1466	}
1467
1468
1469	public void syncRoster(final Account account) {
1470		mRosterSyncTaskManager.execute(account, () -> databaseBackend.writeRoster(account.getRoster()));
1471	}
1472
1473	public List<Conversation> getConversations() {
1474		return this.conversations;
1475	}
1476
1477	private void checkDeletedFiles(Conversation conversation) {
1478		conversation.findMessagesWithFiles(message -> {
1479			if (!getFileBackend().isFileAvailable(message)) {
1480				message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1481				final int s = message.getStatus();
1482				if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1483					markMessage(message, Message.STATUS_SEND_FAILED);
1484				}
1485			}
1486		});
1487	}
1488
1489	private void markFileDeleted(final String path) {
1490		Log.d(Config.LOGTAG, "deleted file " + path);
1491		for (Conversation conversation : getConversations()) {
1492			conversation.findMessagesWithFiles(message -> {
1493				DownloadableFile file = fileBackend.getFile(message);
1494				if (file.getAbsolutePath().equals(path)) {
1495					if (!file.exists()) {
1496						message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
1497						final int s = message.getStatus();
1498						if (s == Message.STATUS_WAITING || s == Message.STATUS_OFFERED || s == Message.STATUS_UNSEND) {
1499							markMessage(message, Message.STATUS_SEND_FAILED);
1500						} else {
1501							updateConversationUi();
1502						}
1503					} else {
1504						Log.d(Config.LOGTAG, "found matching message for file " + path + " but file still exists");
1505					}
1506				}
1507			});
1508		}
1509	}
1510
1511	public void populateWithOrderedConversations(final List<Conversation> list) {
1512		populateWithOrderedConversations(list, true);
1513	}
1514
1515	public void populateWithOrderedConversations(final List<Conversation> list, boolean includeNoFileUpload) {
1516		list.clear();
1517		if (includeNoFileUpload) {
1518			list.addAll(getConversations());
1519		} else {
1520			for (Conversation conversation : getConversations()) {
1521				if (conversation.getMode() == Conversation.MODE_SINGLE
1522						|| conversation.getAccount().httpUploadAvailable()) {
1523					list.add(conversation);
1524				}
1525			}
1526		}
1527		try {
1528			Collections.sort(list);
1529		} catch (IllegalArgumentException e) {
1530			//ignore
1531		}
1532	}
1533
1534	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
1535		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation, callback)) {
1536			return;
1537		} else if (timestamp == 0) {
1538			return;
1539		}
1540		Log.d(Config.LOGTAG, "load more messages for " + conversation.getName() + " prior to " + MessageGenerator.getTimestamp(timestamp));
1541		final Runnable runnable = () -> {
1542			final Account account = conversation.getAccount();
1543			List<Message> messages = databaseBackend.getMessages(conversation, 50, timestamp);
1544			if (messages.size() > 0) {
1545				conversation.addAll(0, messages);
1546				checkDeletedFiles(conversation);
1547				callback.onMoreMessagesLoaded(messages.size(), conversation);
1548			} else if (conversation.hasMessagesLeftOnServer()
1549					&& account.isOnlineAndConnected()
1550					&& conversation.getLastClearHistory().getTimestamp() == 0) {
1551				final boolean mamAvailable;
1552				if (conversation.getMode() == Conversation.MODE_SINGLE) {
1553					mamAvailable = account.getXmppConnection().getFeatures().mam() && !conversation.getContact().isBlocked();
1554				} else {
1555					mamAvailable = conversation.getMucOptions().mamSupport();
1556				}
1557				if (mamAvailable) {
1558					MessageArchiveService.Query query = getMessageArchiveService().query(conversation, new MamReference(0), timestamp, false);
1559					if (query != null) {
1560						query.setCallback(callback);
1561						callback.informUser(R.string.fetching_history_from_server);
1562					} else {
1563						callback.informUser(R.string.not_fetching_history_retention_period);
1564					}
1565
1566				}
1567			}
1568		};
1569		mDatabaseReaderExecutor.execute(runnable);
1570	}
1571
1572	public List<Account> getAccounts() {
1573		return this.accounts;
1574	}
1575
1576	public List<Conversation> findAllConferencesWith(Contact contact) {
1577		ArrayList<Conversation> results = new ArrayList<>();
1578		for (final Conversation c : conversations) {
1579			if (c.getMode() == Conversation.MODE_MULTI
1580					&& (c.getJid().asBareJid().equals(c.getJid().asBareJid()) || c.getMucOptions().isContactInRoom(contact))) {
1581				results.add(c);
1582			}
1583		}
1584		return results;
1585	}
1586
1587	public Conversation find(final Iterable<Conversation> haystack, final Contact contact) {
1588		for (final Conversation conversation : haystack) {
1589			if (conversation.getContact() == contact) {
1590				return conversation;
1591			}
1592		}
1593		return null;
1594	}
1595
1596	public Conversation find(final Iterable<Conversation> haystack, final Account account, final Jid jid) {
1597		if (jid == null) {
1598			return null;
1599		}
1600		for (final Conversation conversation : haystack) {
1601			if ((account == null || conversation.getAccount() == account)
1602					&& (conversation.getJid().asBareJid().equals(jid.asBareJid()))) {
1603				return conversation;
1604			}
1605		}
1606		return null;
1607	}
1608
1609	public boolean isConversationsListEmpty(final Conversation ignore) {
1610		synchronized (this.conversations) {
1611			final int size = this.conversations.size();
1612			return size == 0 || size == 1 && this.conversations.get(0) == ignore;
1613		}
1614	}
1615
1616	public boolean isConversationStillOpen(final Conversation conversation) {
1617		synchronized (this.conversations) {
1618			for (Conversation current : this.conversations) {
1619				if (current == conversation) {
1620					return true;
1621				}
1622			}
1623		}
1624		return false;
1625	}
1626
1627	public Conversation findOrCreateConversation(Account account, Jid jid, boolean muc, final boolean async) {
1628		return this.findOrCreateConversation(account, jid, muc, false, async);
1629	}
1630
1631	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final boolean joinAfterCreate, final boolean async) {
1632		return this.findOrCreateConversation(account, jid, muc, joinAfterCreate, null, async);
1633	}
1634
1635	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final boolean joinAfterCreate, final MessageArchiveService.Query query, final boolean async) {
1636		synchronized (this.conversations) {
1637			Conversation conversation = find(account, jid);
1638			if (conversation != null) {
1639				return conversation;
1640			}
1641			conversation = databaseBackend.findConversation(account, jid);
1642			final boolean loadMessagesFromDb;
1643			if (conversation != null) {
1644				conversation.setStatus(Conversation.STATUS_AVAILABLE);
1645				conversation.setAccount(account);
1646				if (muc) {
1647					conversation.setMode(Conversation.MODE_MULTI);
1648					conversation.setContactJid(jid);
1649				} else {
1650					conversation.setMode(Conversation.MODE_SINGLE);
1651					conversation.setContactJid(jid.asBareJid());
1652				}
1653				databaseBackend.updateConversation(conversation);
1654				loadMessagesFromDb = conversation.messagesLoaded.compareAndSet(true, false);
1655			} else {
1656				String conversationName;
1657				Contact contact = account.getRoster().getContact(jid);
1658				if (contact != null) {
1659					conversationName = contact.getDisplayName();
1660				} else {
1661					conversationName = jid.getLocal();
1662				}
1663				if (muc) {
1664					conversation = new Conversation(conversationName, account, jid,
1665							Conversation.MODE_MULTI);
1666				} else {
1667					conversation = new Conversation(conversationName, account, jid.asBareJid(),
1668							Conversation.MODE_SINGLE);
1669				}
1670				this.databaseBackend.createConversation(conversation);
1671				loadMessagesFromDb = false;
1672			}
1673			final Conversation c = conversation;
1674			final Runnable runnable = () -> {
1675				if (loadMessagesFromDb) {
1676					c.addAll(0, databaseBackend.getMessages(c, Config.PAGE_SIZE));
1677					updateConversationUi();
1678					c.messagesLoaded.set(true);
1679				}
1680				if (account.getXmppConnection() != null
1681						&& !c.getContact().isBlocked()
1682						&& account.getXmppConnection().getFeatures().mam()
1683						&& !muc) {
1684					if (query == null) {
1685						mMessageArchiveService.query(c);
1686					} else {
1687						if (query.getConversation() == null) {
1688							mMessageArchiveService.query(c, query.getStart(), query.isCatchup());
1689						}
1690					}
1691				}
1692				checkDeletedFiles(c);
1693				if (joinAfterCreate) {
1694					joinMuc(c);
1695				}
1696			};
1697			if (async) {
1698				mDatabaseReaderExecutor.execute(runnable);
1699			} else {
1700				runnable.run();
1701			}
1702			this.conversations.add(conversation);
1703			updateConversationUi();
1704			return conversation;
1705		}
1706	}
1707
1708	public void archiveConversation(Conversation conversation) {
1709		getNotificationService().clear(conversation);
1710		conversation.setStatus(Conversation.STATUS_ARCHIVED);
1711		conversation.setNextMessage(null);
1712		synchronized (this.conversations) {
1713			getMessageArchiveService().kill(conversation);
1714			if (conversation.getMode() == Conversation.MODE_MULTI) {
1715				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1716					Bookmark bookmark = conversation.getBookmark();
1717					if (bookmark != null && bookmark.autojoin() && respectAutojoin()) {
1718						bookmark.setAutojoin(false);
1719						pushBookmarks(bookmark.getAccount());
1720					}
1721				}
1722				leaveMuc(conversation);
1723			} else {
1724				if (conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
1725					Log.d(Config.LOGTAG, "Canceling presence request from " + conversation.getJid().toString());
1726					sendPresencePacket(
1727							conversation.getAccount(),
1728							mPresenceGenerator.stopPresenceUpdatesTo(conversation.getContact())
1729					);
1730				}
1731			}
1732			updateConversation(conversation);
1733			this.conversations.remove(conversation);
1734			updateConversationUi();
1735		}
1736	}
1737
1738	public void createAccount(final Account account) {
1739		account.initAccountServices(this);
1740		databaseBackend.createAccount(account);
1741		this.accounts.add(account);
1742		this.reconnectAccountInBackground(account);
1743		updateAccountUi();
1744		syncEnabledAccountSetting();
1745		toggleForegroundService();
1746	}
1747
1748	private void syncEnabledAccountSetting() {
1749		getPreferences().edit().putBoolean(EventReceiver.SETTING_ENABLED_ACCOUNTS, hasEnabledAccounts()).apply();
1750	}
1751
1752	public void createAccountFromKey(final String alias, final OnAccountCreated callback) {
1753		new Thread(() -> {
1754			try {
1755				final X509Certificate[] chain = KeyChain.getCertificateChain(this, alias);
1756				final X509Certificate cert = chain != null && chain.length > 0 ? chain[0] : null;
1757				if (cert == null) {
1758					callback.informUser(R.string.unable_to_parse_certificate);
1759					return;
1760				}
1761				Pair<Jid, String> info = CryptoHelper.extractJidAndName(cert);
1762				if (info == null) {
1763					callback.informUser(R.string.certificate_does_not_contain_jid);
1764					return;
1765				}
1766				if (findAccountByJid(info.first) == null) {
1767					Account account = new Account(info.first, "");
1768					account.setPrivateKeyAlias(alias);
1769					account.setOption(Account.OPTION_DISABLED, true);
1770					account.setDisplayName(info.second);
1771					createAccount(account);
1772					callback.onAccountCreated(account);
1773					if (Config.X509_VERIFICATION) {
1774						try {
1775							getMemorizingTrustManager().getNonInteractive(account.getJid().getDomain()).checkClientTrusted(chain, "RSA");
1776						} catch (CertificateException e) {
1777							callback.informUser(R.string.certificate_chain_is_not_trusted);
1778						}
1779					}
1780				} else {
1781					callback.informUser(R.string.account_already_exists);
1782				}
1783			} catch (Exception e) {
1784				e.printStackTrace();
1785				callback.informUser(R.string.unable_to_parse_certificate);
1786			}
1787		}).start();
1788
1789	}
1790
1791	public void updateKeyInAccount(final Account account, final String alias) {
1792		Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": update key in account " + alias);
1793		try {
1794			X509Certificate[] chain = KeyChain.getCertificateChain(XmppConnectionService.this, alias);
1795			Log.d(Config.LOGTAG, account.getJid().asBareJid() + " loaded certificate chain");
1796			Pair<Jid, String> info = CryptoHelper.extractJidAndName(chain[0]);
1797			if (info == null) {
1798				showErrorToastInUi(R.string.certificate_does_not_contain_jid);
1799				return;
1800			}
1801			if (account.getJid().asBareJid().equals(info.first)) {
1802				account.setPrivateKeyAlias(alias);
1803				account.setDisplayName(info.second);
1804				databaseBackend.updateAccount(account);
1805				if (Config.X509_VERIFICATION) {
1806					try {
1807						getMemorizingTrustManager().getNonInteractive().checkClientTrusted(chain, "RSA");
1808					} catch (CertificateException e) {
1809						showErrorToastInUi(R.string.certificate_chain_is_not_trusted);
1810					}
1811					account.getAxolotlService().regenerateKeys(true);
1812				}
1813			} else {
1814				showErrorToastInUi(R.string.jid_does_not_match_certificate);
1815			}
1816		} catch (Exception e) {
1817			e.printStackTrace();
1818		}
1819	}
1820
1821	public boolean updateAccount(final Account account) {
1822		if (databaseBackend.updateAccount(account)) {
1823			account.setShowErrorNotification(true);
1824			this.statusListener.onStatusChanged(account);
1825			databaseBackend.updateAccount(account);
1826			reconnectAccountInBackground(account);
1827			updateAccountUi();
1828			getNotificationService().updateErrorNotification();
1829			toggleForegroundService();
1830			syncEnabledAccountSetting();
1831			return true;
1832		} else {
1833			return false;
1834		}
1835	}
1836
1837	public void updateAccountPasswordOnServer(final Account account, final String newPassword, final OnAccountPasswordChanged callback) {
1838		final IqPacket iq = getIqGenerator().generateSetPassword(account, newPassword);
1839		sendIqPacket(account, iq, (a, packet) -> {
1840			if (packet.getType() == IqPacket.TYPE.RESULT) {
1841				a.setPassword(newPassword);
1842				a.setOption(Account.OPTION_MAGIC_CREATE, false);
1843				databaseBackend.updateAccount(a);
1844				callback.onPasswordChangeSucceeded();
1845			} else {
1846				callback.onPasswordChangeFailed();
1847			}
1848		});
1849	}
1850
1851	public void deleteAccount(final Account account) {
1852		synchronized (this.conversations) {
1853			for (final Conversation conversation : conversations) {
1854				if (conversation.getAccount() == account) {
1855					if (conversation.getMode() == Conversation.MODE_MULTI) {
1856						leaveMuc(conversation);
1857					}
1858					conversations.remove(conversation);
1859				}
1860			}
1861			if (account.getXmppConnection() != null) {
1862				new Thread(() -> disconnect(account, true)).start();
1863			}
1864			final Runnable runnable = () -> {
1865				if (!databaseBackend.deleteAccount(account)) {
1866					Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": unable to delete account");
1867				}
1868			};
1869			mDatabaseWriterExecutor.execute(runnable);
1870			this.accounts.remove(account);
1871			this.mRosterSyncTaskManager.clear(account);
1872			updateAccountUi();
1873			getNotificationService().updateErrorNotification();
1874			syncEnabledAccountSetting();
1875		}
1876	}
1877
1878	public void setOnConversationListChangedListener(OnConversationUpdate listener) {
1879		synchronized (this) {
1880			this.mLastActivity = System.currentTimeMillis();
1881			if (checkListeners()) {
1882				switchToForeground();
1883			}
1884			this.mOnConversationUpdate = listener;
1885			this.mNotificationService.setIsInForeground(true);
1886			if (this.convChangedListenerCount < 2) {
1887				this.convChangedListenerCount++;
1888			}
1889		}
1890	}
1891
1892	public void removeOnConversationListChangedListener() {
1893		synchronized (this) {
1894			this.convChangedListenerCount--;
1895			if (this.convChangedListenerCount <= 0) {
1896				this.convChangedListenerCount = 0;
1897				this.mOnConversationUpdate = null;
1898				this.mNotificationService.setIsInForeground(false);
1899				if (checkListeners()) {
1900					switchToBackground();
1901				}
1902			}
1903		}
1904	}
1905
1906	public void setOnShowErrorToastListener(OnShowErrorToast onShowErrorToast) {
1907		synchronized (this) {
1908			if (checkListeners()) {
1909				switchToForeground();
1910			}
1911			this.mOnShowErrorToast = onShowErrorToast;
1912			if (this.showErrorToastListenerCount < 2) {
1913				this.showErrorToastListenerCount++;
1914			}
1915		}
1916		this.mOnShowErrorToast = onShowErrorToast;
1917	}
1918
1919	public void removeOnShowErrorToastListener() {
1920		synchronized (this) {
1921			this.showErrorToastListenerCount--;
1922			if (this.showErrorToastListenerCount <= 0) {
1923				this.showErrorToastListenerCount = 0;
1924				this.mOnShowErrorToast = null;
1925				if (checkListeners()) {
1926					switchToBackground();
1927				}
1928			}
1929		}
1930	}
1931
1932	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
1933		synchronized (this) {
1934			if (checkListeners()) {
1935				switchToForeground();
1936			}
1937			this.mOnAccountUpdate = listener;
1938			if (this.accountChangedListenerCount < 2) {
1939				this.accountChangedListenerCount++;
1940			}
1941		}
1942	}
1943
1944	public void removeOnAccountListChangedListener() {
1945		synchronized (this) {
1946			this.accountChangedListenerCount--;
1947			if (this.accountChangedListenerCount <= 0) {
1948				this.mOnAccountUpdate = null;
1949				this.accountChangedListenerCount = 0;
1950				if (checkListeners()) {
1951					switchToBackground();
1952				}
1953			}
1954		}
1955	}
1956
1957	public void setOnCaptchaRequestedListener(OnCaptchaRequested listener) {
1958		synchronized (this) {
1959			if (checkListeners()) {
1960				switchToForeground();
1961			}
1962			this.mOnCaptchaRequested = listener;
1963			if (this.captchaRequestedListenerCount < 2) {
1964				this.captchaRequestedListenerCount++;
1965			}
1966		}
1967	}
1968
1969	public void removeOnCaptchaRequestedListener() {
1970		synchronized (this) {
1971			this.captchaRequestedListenerCount--;
1972			if (this.captchaRequestedListenerCount <= 0) {
1973				this.mOnCaptchaRequested = null;
1974				this.captchaRequestedListenerCount = 0;
1975				if (checkListeners()) {
1976					switchToBackground();
1977				}
1978			}
1979		}
1980	}
1981
1982	public void setOnRosterUpdateListener(final OnRosterUpdate listener) {
1983		synchronized (this) {
1984			if (checkListeners()) {
1985				switchToForeground();
1986			}
1987			this.mOnRosterUpdate = listener;
1988			if (this.rosterChangedListenerCount < 2) {
1989				this.rosterChangedListenerCount++;
1990			}
1991		}
1992	}
1993
1994	public void removeOnRosterUpdateListener() {
1995		synchronized (this) {
1996			this.rosterChangedListenerCount--;
1997			if (this.rosterChangedListenerCount <= 0) {
1998				this.rosterChangedListenerCount = 0;
1999				this.mOnRosterUpdate = null;
2000				if (checkListeners()) {
2001					switchToBackground();
2002				}
2003			}
2004		}
2005	}
2006
2007	public void setOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
2008		synchronized (this) {
2009			if (checkListeners()) {
2010				switchToForeground();
2011			}
2012			this.mOnUpdateBlocklist = listener;
2013			if (this.updateBlocklistListenerCount < 2) {
2014				this.updateBlocklistListenerCount++;
2015			}
2016		}
2017	}
2018
2019	public void removeOnUpdateBlocklistListener() {
2020		synchronized (this) {
2021			this.updateBlocklistListenerCount--;
2022			if (this.updateBlocklistListenerCount <= 0) {
2023				this.updateBlocklistListenerCount = 0;
2024				this.mOnUpdateBlocklist = null;
2025				if (checkListeners()) {
2026					switchToBackground();
2027				}
2028			}
2029		}
2030	}
2031
2032	public void setOnKeyStatusUpdatedListener(final OnKeyStatusUpdated listener) {
2033		synchronized (this) {
2034			if (checkListeners()) {
2035				switchToForeground();
2036			}
2037			this.mOnKeyStatusUpdated = listener;
2038			if (this.keyStatusUpdatedListenerCount < 2) {
2039				this.keyStatusUpdatedListenerCount++;
2040			}
2041		}
2042	}
2043
2044	public void removeOnNewKeysAvailableListener() {
2045		synchronized (this) {
2046			this.keyStatusUpdatedListenerCount--;
2047			if (this.keyStatusUpdatedListenerCount <= 0) {
2048				this.keyStatusUpdatedListenerCount = 0;
2049				this.mOnKeyStatusUpdated = null;
2050				if (checkListeners()) {
2051					switchToBackground();
2052				}
2053			}
2054		}
2055	}
2056
2057	public void setOnMucRosterUpdateListener(OnMucRosterUpdate listener) {
2058		synchronized (this) {
2059			if (checkListeners()) {
2060				switchToForeground();
2061			}
2062			this.mOnMucRosterUpdate = listener;
2063			if (this.mucRosterChangedListenerCount < 2) {
2064				this.mucRosterChangedListenerCount++;
2065			}
2066		}
2067	}
2068
2069	public void removeOnMucRosterUpdateListener() {
2070		synchronized (this) {
2071			this.mucRosterChangedListenerCount--;
2072			if (this.mucRosterChangedListenerCount <= 0) {
2073				this.mucRosterChangedListenerCount = 0;
2074				this.mOnMucRosterUpdate = null;
2075				if (checkListeners()) {
2076					switchToBackground();
2077				}
2078			}
2079		}
2080	}
2081
2082	public boolean checkListeners() {
2083		return (this.mOnAccountUpdate == null
2084				&& this.mOnConversationUpdate == null
2085				&& this.mOnRosterUpdate == null
2086				&& this.mOnCaptchaRequested == null
2087				&& this.mOnUpdateBlocklist == null
2088				&& this.mOnShowErrorToast == null
2089				&& this.mOnKeyStatusUpdated == null);
2090	}
2091
2092	private void switchToForeground() {
2093		final boolean broadcastLastActivity = broadcastLastActivity();
2094		for (Conversation conversation : getConversations()) {
2095			if (conversation.getMode() == Conversation.MODE_MULTI) {
2096				conversation.getMucOptions().resetChatState();
2097			} else {
2098				conversation.setIncomingChatState(Config.DEFAULT_CHATSTATE);
2099			}
2100		}
2101		for (Account account : getAccounts()) {
2102			if (account.getStatus() == Account.State.ONLINE) {
2103				account.deactivateGracePeriod();
2104				final XmppConnection connection = account.getXmppConnection();
2105				if (connection != null) {
2106					if (connection.getFeatures().csi()) {
2107						connection.sendActive();
2108					}
2109					if (broadcastLastActivity) {
2110						sendPresence(account, false); //send new presence but don't include idle because we are not
2111					}
2112				}
2113			}
2114		}
2115		Log.d(Config.LOGTAG, "app switched into foreground");
2116	}
2117
2118	private void switchToBackground() {
2119		final boolean broadcastLastActivity = broadcastLastActivity();
2120		for (Account account : getAccounts()) {
2121			if (account.getStatus() == Account.State.ONLINE) {
2122				XmppConnection connection = account.getXmppConnection();
2123				if (connection != null) {
2124					if (broadcastLastActivity) {
2125						sendPresence(account, true);
2126					}
2127					if (connection.getFeatures().csi()) {
2128						connection.sendInactive();
2129					}
2130				}
2131			}
2132		}
2133		this.mNotificationService.setIsInForeground(false);
2134		Log.d(Config.LOGTAG, "app switched into background");
2135	}
2136
2137	private void connectMultiModeConversations(Account account) {
2138		List<Conversation> conversations = getConversations();
2139		for (Conversation conversation : conversations) {
2140			if (conversation.getMode() == Conversation.MODE_MULTI && conversation.getAccount() == account) {
2141				joinMuc(conversation);
2142			}
2143		}
2144	}
2145
2146	public void joinMuc(Conversation conversation) {
2147		joinMuc(conversation, null, false);
2148	}
2149
2150	public void joinMuc(Conversation conversation, boolean followedInvite) {
2151		joinMuc(conversation, null, followedInvite);
2152	}
2153
2154	private void joinMuc(Conversation conversation, final OnConferenceJoined onConferenceJoined) {
2155		joinMuc(conversation, onConferenceJoined, false);
2156	}
2157
2158	private void joinMuc(Conversation conversation, final OnConferenceJoined onConferenceJoined, final boolean followedInvite) {
2159		Account account = conversation.getAccount();
2160		account.pendingConferenceJoins.remove(conversation);
2161		account.pendingConferenceLeaves.remove(conversation);
2162		if (account.getStatus() == Account.State.ONLINE) {
2163			sendPresencePacket(account, mPresenceGenerator.leave(conversation.getMucOptions()));
2164			conversation.resetMucOptions();
2165			if (onConferenceJoined != null) {
2166				conversation.getMucOptions().flagNoAutoPushConfiguration();
2167			}
2168			conversation.setHasMessagesLeftOnServer(false);
2169			fetchConferenceConfiguration(conversation, new OnConferenceConfigurationFetched() {
2170
2171				private void join(Conversation conversation) {
2172					Account account = conversation.getAccount();
2173					final MucOptions mucOptions = conversation.getMucOptions();
2174					final Jid joinJid = mucOptions.getSelf().getFullJid();
2175					Log.d(Config.LOGTAG, account.getJid().asBareJid().toString() + ": joining conversation " + joinJid.toString());
2176					PresencePacket packet = mPresenceGenerator.selfPresence(account, Presence.Status.ONLINE, mucOptions.nonanonymous() || onConferenceJoined != null);
2177					packet.setTo(joinJid);
2178					Element x = packet.addChild("x", "http://jabber.org/protocol/muc");
2179					if (conversation.getMucOptions().getPassword() != null) {
2180						x.addChild("password").setContent(mucOptions.getPassword());
2181					}
2182
2183					if (mucOptions.mamSupport()) {
2184						// Use MAM instead of the limited muc history to get history
2185						x.addChild("history").setAttribute("maxchars", "0");
2186					} else {
2187						// Fallback to muc history
2188						x.addChild("history").setAttribute("since", PresenceGenerator.getTimestamp(conversation.getLastMessageTransmitted().getTimestamp()));
2189					}
2190					sendPresencePacket(account, packet);
2191					if (onConferenceJoined != null) {
2192						onConferenceJoined.onConferenceJoined(conversation);
2193					}
2194					if (!joinJid.equals(conversation.getJid())) {
2195						conversation.setContactJid(joinJid);
2196						databaseBackend.updateConversation(conversation);
2197					}
2198
2199					if (mucOptions.mamSupport()) {
2200						getMessageArchiveService().catchupMUC(conversation);
2201					}
2202					if (mucOptions.isPrivateAndNonAnonymous()) {
2203						fetchConferenceMembers(conversation);
2204						if (followedInvite && conversation.getBookmark() == null) {
2205							saveConversationAsBookmark(conversation, null);
2206						}
2207					}
2208					sendUnsentMessages(conversation);
2209				}
2210
2211				@Override
2212				public void onConferenceConfigurationFetched(Conversation conversation) {
2213					join(conversation);
2214				}
2215
2216				@Override
2217				public void onFetchFailed(final Conversation conversation, Element error) {
2218					if (error != null && "remote-server-not-found".equals(error.getName())) {
2219						conversation.getMucOptions().setError(MucOptions.Error.SERVER_NOT_FOUND);
2220						updateConversationUi();
2221					} else {
2222						join(conversation);
2223						fetchConferenceConfiguration(conversation);
2224					}
2225				}
2226			});
2227			updateConversationUi();
2228		} else {
2229			account.pendingConferenceJoins.add(conversation);
2230			conversation.resetMucOptions();
2231			conversation.setHasMessagesLeftOnServer(false);
2232			updateConversationUi();
2233		}
2234	}
2235
2236	private void fetchConferenceMembers(final Conversation conversation) {
2237		final Account account = conversation.getAccount();
2238		final AxolotlService axolotlService = account.getAxolotlService();
2239		final String[] affiliations = {"member", "admin", "owner"};
2240		OnIqPacketReceived callback = new OnIqPacketReceived() {
2241
2242			private int i = 0;
2243			private boolean success = true;
2244
2245			@Override
2246			public void onIqPacketReceived(Account account, IqPacket packet) {
2247
2248				Element query = packet.query("http://jabber.org/protocol/muc#admin");
2249				if (packet.getType() == IqPacket.TYPE.RESULT && query != null) {
2250					for (Element child : query.getChildren()) {
2251						if ("item".equals(child.getName())) {
2252							MucOptions.User user = AbstractParser.parseItem(conversation, child);
2253							if (!user.realJidMatchesAccount()) {
2254								boolean isNew = conversation.getMucOptions().updateUser(user);
2255								Contact contact = user.getContact();
2256								if (isNew
2257										&& user.getRealJid() != null
2258										&& (contact == null || !contact.mutualPresenceSubscription())
2259										&& axolotlService.hasEmptyDeviceList(user.getRealJid())) {
2260									axolotlService.fetchDeviceIds(user.getRealJid());
2261								}
2262							}
2263						}
2264					}
2265				} else {
2266					success = false;
2267					Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": could not request affiliation " + affiliations[i] + " in " + conversation.getJid().asBareJid());
2268				}
2269				++i;
2270				if (i >= affiliations.length) {
2271					List<Jid> members = conversation.getMucOptions().getMembers();
2272					if (success) {
2273						List<Jid> cryptoTargets = conversation.getAcceptedCryptoTargets();
2274						boolean changed = false;
2275						for (ListIterator<Jid> iterator = cryptoTargets.listIterator(); iterator.hasNext(); ) {
2276							Jid jid = iterator.next();
2277							if (!members.contains(jid)) {
2278								iterator.remove();
2279								Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": removed " + jid + " from crypto targets of " + conversation.getName());
2280								changed = true;
2281							}
2282						}
2283						if (changed) {
2284							conversation.setAcceptedCryptoTargets(cryptoTargets);
2285							updateConversation(conversation);
2286						}
2287					}
2288					Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": retrieved members for " + conversation.getJid().asBareJid() + ": " + conversation.getMucOptions().getMembers());
2289					getAvatarService().clear(conversation);
2290					updateMucRosterUi();
2291					updateConversationUi();
2292				}
2293			}
2294		};
2295		for (String affiliation : affiliations) {
2296			sendIqPacket(account, mIqGenerator.queryAffiliation(conversation, affiliation), callback);
2297		}
2298		Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": fetching members for " + conversation.getName());
2299	}
2300
2301	public void providePasswordForMuc(Conversation conversation, String password) {
2302		if (conversation.getMode() == Conversation.MODE_MULTI) {
2303			conversation.getMucOptions().setPassword(password);
2304			if (conversation.getBookmark() != null) {
2305				if (respectAutojoin()) {
2306					conversation.getBookmark().setAutojoin(true);
2307				}
2308				pushBookmarks(conversation.getAccount());
2309			}
2310			updateConversation(conversation);
2311			joinMuc(conversation);
2312		}
2313	}
2314
2315	private boolean hasEnabledAccounts() {
2316		for (Account account : this.accounts) {
2317			if (account.isEnabled()) {
2318				return true;
2319			}
2320		}
2321		return false;
2322	}
2323
2324	public void persistSelfNick(MucOptions.User self) {
2325		final Conversation conversation = self.getConversation();
2326		Jid full = self.getFullJid();
2327		if (!full.equals(conversation.getJid())) {
2328			Log.d(Config.LOGTAG, "nick changed. updating");
2329			conversation.setContactJid(full);
2330			databaseBackend.updateConversation(conversation);
2331		}
2332
2333		Bookmark bookmark = conversation.getBookmark();
2334		if (bookmark != null && !full.getResource().equals(bookmark.getNick())) {
2335			bookmark.setNick(full.getResource());
2336			pushBookmarks(bookmark.getAccount());
2337		}
2338	}
2339
2340	public boolean renameInMuc(final Conversation conversation, final String nick, final UiCallback<Conversation> callback) {
2341		final MucOptions options = conversation.getMucOptions();
2342		final Jid joinJid = options.createJoinJid(nick);
2343		if (joinJid == null) {
2344			return false;
2345		}
2346		if (options.online()) {
2347			Account account = conversation.getAccount();
2348			options.setOnRenameListener(new OnRenameListener() {
2349
2350				@Override
2351				public void onSuccess() {
2352					callback.success(conversation);
2353				}
2354
2355				@Override
2356				public void onFailure() {
2357					callback.error(R.string.nick_in_use, conversation);
2358				}
2359			});
2360
2361			PresencePacket packet = new PresencePacket();
2362			packet.setTo(joinJid);
2363			packet.setFrom(conversation.getAccount().getJid());
2364
2365			String sig = account.getPgpSignature();
2366			if (sig != null) {
2367				packet.addChild("status").setContent("online");
2368				packet.addChild("x", "jabber:x:signed").setContent(sig);
2369			}
2370			sendPresencePacket(account, packet);
2371		} else {
2372			conversation.setContactJid(joinJid);
2373			databaseBackend.updateConversation(conversation);
2374			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
2375				Bookmark bookmark = conversation.getBookmark();
2376				if (bookmark != null) {
2377					bookmark.setNick(nick);
2378					pushBookmarks(bookmark.getAccount());
2379				}
2380				joinMuc(conversation);
2381			}
2382		}
2383		return true;
2384	}
2385
2386	public void leaveMuc(Conversation conversation) {
2387		leaveMuc(conversation, false);
2388	}
2389
2390	private void leaveMuc(Conversation conversation, boolean now) {
2391		Account account = conversation.getAccount();
2392		account.pendingConferenceJoins.remove(conversation);
2393		account.pendingConferenceLeaves.remove(conversation);
2394		if (account.getStatus() == Account.State.ONLINE || now) {
2395			sendPresencePacket(conversation.getAccount(), mPresenceGenerator.leave(conversation.getMucOptions()));
2396			conversation.getMucOptions().setOffline();
2397			Bookmark bookmark = conversation.getBookmark();
2398			if (bookmark != null) {
2399				bookmark.setConversation(null);
2400			}
2401			Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": leaving muc " + conversation.getJid());
2402		} else {
2403			account.pendingConferenceLeaves.add(conversation);
2404		}
2405	}
2406
2407	public String findConferenceServer(final Account account) {
2408		String server;
2409		if (account.getXmppConnection() != null) {
2410			server = account.getXmppConnection().getMucServer();
2411			if (server != null) {
2412				return server;
2413			}
2414		}
2415		for (Account other : getAccounts()) {
2416			if (other != account && other.getXmppConnection() != null) {
2417				server = other.getXmppConnection().getMucServer();
2418				if (server != null) {
2419					return server;
2420				}
2421			}
2422		}
2423		return null;
2424	}
2425
2426	public boolean createAdhocConference(final Account account,
2427	                                     final String subject,
2428	                                     final Iterable<Jid> jids,
2429	                                     final UiCallback<Conversation> callback) {
2430		Log.d(Config.LOGTAG, account.getJid().asBareJid().toString() + ": creating adhoc conference with " + jids.toString());
2431		if (account.getStatus() == Account.State.ONLINE) {
2432			try {
2433				String server = findConferenceServer(account);
2434				if (server == null) {
2435					if (callback != null) {
2436						callback.error(R.string.no_conference_server_found, null);
2437					}
2438					return false;
2439				}
2440				final Jid jid = Jid.of(new BigInteger(64, getRNG()).toString(Character.MAX_RADIX), server, null);
2441				final Conversation conversation = findOrCreateConversation(account, jid, true, false, true);
2442				joinMuc(conversation, new OnConferenceJoined() {
2443					@Override
2444					public void onConferenceJoined(final Conversation conversation) {
2445						pushConferenceConfiguration(conversation, IqGenerator.defaultRoomConfiguration(), new OnConfigurationPushed() {
2446							@Override
2447							public void onPushSucceeded() {
2448								if (subject != null && !subject.trim().isEmpty()) {
2449									pushSubjectToConference(conversation, subject.trim());
2450								}
2451								for (Jid invite : jids) {
2452									invite(conversation, invite);
2453								}
2454								if (account.countPresences() > 1) {
2455									directInvite(conversation, account.getJid().asBareJid());
2456								}
2457								saveConversationAsBookmark(conversation, subject);
2458								if (callback != null) {
2459									callback.success(conversation);
2460								}
2461							}
2462
2463							@Override
2464							public void onPushFailed() {
2465								archiveConversation(conversation);
2466								if (callback != null) {
2467									callback.error(R.string.conference_creation_failed, conversation);
2468								}
2469							}
2470						});
2471					}
2472				});
2473				return true;
2474			} catch (IllegalArgumentException e) {
2475				if (callback != null) {
2476					callback.error(R.string.conference_creation_failed, null);
2477				}
2478				return false;
2479			}
2480		} else {
2481			if (callback != null) {
2482				callback.error(R.string.not_connected_try_again, null);
2483			}
2484			return false;
2485		}
2486	}
2487
2488	public void fetchConferenceConfiguration(final Conversation conversation) {
2489		fetchConferenceConfiguration(conversation, null);
2490	}
2491
2492	public void fetchConferenceConfiguration(final Conversation conversation, final OnConferenceConfigurationFetched callback) {
2493		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2494		request.setTo(conversation.getJid().asBareJid());
2495		request.query("http://jabber.org/protocol/disco#info");
2496		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2497			@Override
2498			public void onIqPacketReceived(Account account, IqPacket packet) {
2499				Element query = packet.findChild("query", "http://jabber.org/protocol/disco#info");
2500				if (packet.getType() == IqPacket.TYPE.RESULT && query != null) {
2501					ArrayList<String> features = new ArrayList<>();
2502					for (Element child : query.getChildren()) {
2503						if (child != null && child.getName().equals("feature")) {
2504							String var = child.getAttribute("var");
2505							if (var != null) {
2506								features.add(var);
2507							}
2508						}
2509					}
2510					Element form = query.findChild("x", Namespace.DATA);
2511					Data data = form == null ? null : Data.parse(form);
2512					if (conversation.getMucOptions().updateConfiguration(features, data)) {
2513						Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": muc configuration changed for " + conversation.getJid().asBareJid());
2514						updateConversation(conversation);
2515					}
2516					if (callback != null) {
2517						callback.onConferenceConfigurationFetched(conversation);
2518					}
2519					updateConversationUi();
2520				} else if (packet.getType() == IqPacket.TYPE.ERROR) {
2521					if (callback != null) {
2522						callback.onFetchFailed(conversation, packet.getError());
2523					}
2524				}
2525			}
2526		});
2527	}
2528
2529	public void pushNodeConfiguration(Account account, final String node, final Bundle options, final OnConfigurationPushed callback) {
2530		pushNodeConfiguration(account, account.getJid().asBareJid(), node, options, callback);
2531	}
2532
2533	public void pushNodeConfiguration(Account account, final Jid jid, final String node, final Bundle options, final OnConfigurationPushed callback) {
2534		sendIqPacket(account, mIqGenerator.requestPubsubConfiguration(jid, node), new OnIqPacketReceived() {
2535			@Override
2536			public void onIqPacketReceived(Account account, IqPacket packet) {
2537				if (packet.getType() == IqPacket.TYPE.RESULT) {
2538					Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub#owner");
2539					Element configuration = pubsub == null ? null : pubsub.findChild("configure");
2540					Element x = configuration == null ? null : configuration.findChild("x", Namespace.DATA);
2541					if (x != null) {
2542						Data data = Data.parse(x);
2543						data.submit(options);
2544						sendIqPacket(account, mIqGenerator.publishPubsubConfiguration(jid, node, data), new OnIqPacketReceived() {
2545							@Override
2546							public void onIqPacketReceived(Account account, IqPacket packet) {
2547								if (packet.getType() == IqPacket.TYPE.RESULT && callback != null) {
2548									callback.onPushSucceeded();
2549								} else if (packet.getType() == IqPacket.TYPE.ERROR && callback != null) {
2550									callback.onPushFailed();
2551								}
2552							}
2553						});
2554					} else if (callback != null) {
2555						callback.onPushFailed();
2556					}
2557				} else if (packet.getType() == IqPacket.TYPE.ERROR && callback != null) {
2558					callback.onPushFailed();
2559				}
2560			}
2561		});
2562	}
2563
2564	public void pushConferenceConfiguration(final Conversation conversation, final Bundle options, final OnConfigurationPushed callback) {
2565		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2566		request.setTo(conversation.getJid().asBareJid());
2567		request.query("http://jabber.org/protocol/muc#owner");
2568		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2569			@Override
2570			public void onIqPacketReceived(Account account, IqPacket packet) {
2571				if (packet.getType() == IqPacket.TYPE.RESULT) {
2572					Data data = Data.parse(packet.query().findChild("x", Namespace.DATA));
2573					data.submit(options);
2574					IqPacket set = new IqPacket(IqPacket.TYPE.SET);
2575					set.setTo(conversation.getJid().asBareJid());
2576					set.query("http://jabber.org/protocol/muc#owner").addChild(data);
2577					sendIqPacket(account, set, new OnIqPacketReceived() {
2578						@Override
2579						public void onIqPacketReceived(Account account, IqPacket packet) {
2580							if (callback != null) {
2581								if (packet.getType() == IqPacket.TYPE.RESULT) {
2582									callback.onPushSucceeded();
2583								} else {
2584									callback.onPushFailed();
2585								}
2586							}
2587						}
2588					});
2589				} else {
2590					if (callback != null) {
2591						callback.onPushFailed();
2592					}
2593				}
2594			}
2595		});
2596	}
2597
2598	public void pushSubjectToConference(final Conversation conference, final String subject) {
2599		MessagePacket packet = this.getMessageGenerator().conferenceSubject(conference, subject);
2600		this.sendMessagePacket(conference.getAccount(), packet);
2601		final MucOptions mucOptions = conference.getMucOptions();
2602		final MucOptions.User self = mucOptions.getSelf();
2603		if (self.getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
2604			Bundle options = new Bundle();
2605			options.putString("muc#roomconfig_persistentroom", "1");
2606			options.putString("muc#roomconfig_roomname", subject);
2607			this.pushConferenceConfiguration(conference, options, null);
2608		}
2609	}
2610
2611	public void changeAffiliationInConference(final Conversation conference, Jid user, final MucOptions.Affiliation affiliation, final OnAffiliationChanged callback) {
2612		final Jid jid = user.asBareJid();
2613		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jid, affiliation.toString());
2614		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2615			@Override
2616			public void onIqPacketReceived(Account account, IqPacket packet) {
2617				if (packet.getType() == IqPacket.TYPE.RESULT) {
2618					conference.getMucOptions().changeAffiliation(jid, affiliation);
2619					getAvatarService().clear(conference);
2620					callback.onAffiliationChangedSuccessful(jid);
2621				} else {
2622					callback.onAffiliationChangeFailed(jid, R.string.could_not_change_affiliation);
2623				}
2624			}
2625		});
2626	}
2627
2628	public void changeAffiliationsInConference(final Conversation conference, MucOptions.Affiliation before, MucOptions.Affiliation after) {
2629		List<Jid> jids = new ArrayList<>();
2630		for (MucOptions.User user : conference.getMucOptions().getUsers()) {
2631			if (user.getAffiliation() == before && user.getRealJid() != null) {
2632				jids.add(user.getRealJid());
2633			}
2634		}
2635		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
2636		sendIqPacket(conference.getAccount(), request, mDefaultIqHandler);
2637	}
2638
2639	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role, final OnRoleChanged callback) {
2640		IqPacket request = this.mIqGenerator.changeRole(conference, nick, role.toString());
2641		Log.d(Config.LOGTAG, request.toString());
2642		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2643			@Override
2644			public void onIqPacketReceived(Account account, IqPacket packet) {
2645				Log.d(Config.LOGTAG, packet.toString());
2646				if (packet.getType() == IqPacket.TYPE.RESULT) {
2647					callback.onRoleChangedSuccessful(nick);
2648				} else {
2649					callback.onRoleChangeFailed(nick, R.string.could_not_change_role);
2650				}
2651			}
2652		});
2653	}
2654
2655	private void disconnect(Account account, boolean force) {
2656		if ((account.getStatus() == Account.State.ONLINE)
2657				|| (account.getStatus() == Account.State.DISABLED)) {
2658			final XmppConnection connection = account.getXmppConnection();
2659			if (!force) {
2660				List<Conversation> conversations = getConversations();
2661				for (Conversation conversation : conversations) {
2662					if (conversation.getAccount() == account) {
2663						if (conversation.getMode() == Conversation.MODE_MULTI) {
2664							leaveMuc(conversation, true);
2665						}
2666					}
2667				}
2668				sendOfflinePresence(account);
2669			}
2670			connection.disconnect(force);
2671		}
2672	}
2673
2674	@Override
2675	public IBinder onBind(Intent intent) {
2676		return mBinder;
2677	}
2678
2679	public void updateMessage(Message message) {
2680		databaseBackend.updateMessage(message);
2681		updateConversationUi();
2682	}
2683
2684	public void updateMessage(Message message, String uuid) {
2685		databaseBackend.updateMessage(message, uuid);
2686		updateConversationUi();
2687	}
2688
2689	protected void syncDirtyContacts(Account account) {
2690		for (Contact contact : account.getRoster().getContacts()) {
2691			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
2692				pushContactToServer(contact);
2693			}
2694			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
2695				deleteContactOnServer(contact);
2696			}
2697		}
2698	}
2699
2700	public void createContact(Contact contact, boolean autoGrant) {
2701		if (autoGrant) {
2702			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
2703			contact.setOption(Contact.Options.ASKING);
2704		}
2705		pushContactToServer(contact);
2706	}
2707
2708	public void pushContactToServer(final Contact contact) {
2709		contact.resetOption(Contact.Options.DIRTY_DELETE);
2710		contact.setOption(Contact.Options.DIRTY_PUSH);
2711		final Account account = contact.getAccount();
2712		if (account.getStatus() == Account.State.ONLINE) {
2713			final boolean ask = contact.getOption(Contact.Options.ASKING);
2714			final boolean sendUpdates = contact
2715					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
2716					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
2717			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2718			iq.query(Namespace.ROSTER).addChild(contact.asElement());
2719			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2720			if (sendUpdates) {
2721				sendPresencePacket(account, mPresenceGenerator.sendPresenceUpdatesTo(contact));
2722			}
2723			if (ask) {
2724				sendPresencePacket(account, mPresenceGenerator.requestPresenceUpdatesFrom(contact));
2725			}
2726		} else {
2727			syncRoster(contact.getAccount());
2728		}
2729	}
2730
2731	public void publishAvatar(final Account account, final Uri image, final UiCallback<Avatar> callback) {
2732		new Thread(() -> {
2733			final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
2734			final int size = Config.AVATAR_SIZE;
2735			final Avatar avatar = getFileBackend().getPepAvatar(image, size, format);
2736			if (avatar != null) {
2737				if (!getFileBackend().save(avatar)) {
2738					callback.error(R.string.error_saving_avatar, avatar);
2739					return;
2740				}
2741				publishAvatar(account, avatar, callback);
2742			} else {
2743				callback.error(R.string.error_publish_avatar_converting, null);
2744			}
2745		}).start();
2746
2747	}
2748
2749	public void publishAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2750		IqPacket packet = this.mIqGenerator.publishAvatar(avatar);
2751		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2752
2753			@Override
2754			public void onIqPacketReceived(Account account, IqPacket result) {
2755				if (result.getType() == IqPacket.TYPE.RESULT) {
2756					final IqPacket packet = XmppConnectionService.this.mIqGenerator.publishAvatarMetadata(avatar);
2757					sendIqPacket(account, packet, new OnIqPacketReceived() {
2758						@Override
2759						public void onIqPacketReceived(Account account, IqPacket result) {
2760							if (result.getType() == IqPacket.TYPE.RESULT) {
2761								if (account.setAvatar(avatar.getFilename())) {
2762									getAvatarService().clear(account);
2763									databaseBackend.updateAccount(account);
2764								}
2765								Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": published avatar " + (avatar.size / 1024) + "KiB");
2766								if (callback != null) {
2767									callback.success(avatar);
2768								}
2769							} else {
2770								if (callback != null) {
2771									callback.error(R.string.error_publish_avatar_server_reject, avatar);
2772								}
2773							}
2774						}
2775					});
2776				} else {
2777					Element error = result.findChild("error");
2778					Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": server rejected avatar " + (avatar.size / 1024) + "KiB " + (error != null ? error.toString() : ""));
2779					if (callback != null) {
2780						callback.error(R.string.error_publish_avatar_server_reject, avatar);
2781					}
2782				}
2783			}
2784		});
2785	}
2786
2787	public void republishAvatarIfNeeded(Account account) {
2788		if (account.getAxolotlService().isPepBroken()) {
2789			Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": skipping republication of avatar because pep is broken");
2790			return;
2791		}
2792		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2793		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2794
2795			private Avatar parseAvatar(IqPacket packet) {
2796				Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub");
2797				if (pubsub != null) {
2798					Element items = pubsub.findChild("items");
2799					if (items != null) {
2800						return Avatar.parseMetadata(items);
2801					}
2802				}
2803				return null;
2804			}
2805
2806			private boolean errorIsItemNotFound(IqPacket packet) {
2807				Element error = packet.findChild("error");
2808				return packet.getType() == IqPacket.TYPE.ERROR
2809						&& error != null
2810						&& error.hasChild("item-not-found");
2811			}
2812
2813			@Override
2814			public void onIqPacketReceived(Account account, IqPacket packet) {
2815				if (packet.getType() == IqPacket.TYPE.RESULT || errorIsItemNotFound(packet)) {
2816					Avatar serverAvatar = parseAvatar(packet);
2817					if (serverAvatar == null && account.getAvatar() != null) {
2818						Avatar avatar = fileBackend.getStoredPepAvatar(account.getAvatar());
2819						if (avatar != null) {
2820							Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": avatar on server was null. republishing");
2821							publishAvatar(account, fileBackend.getStoredPepAvatar(account.getAvatar()), null);
2822						} else {
2823							Log.e(Config.LOGTAG, account.getJid().asBareJid() + ": error rereading avatar");
2824						}
2825					}
2826				}
2827			}
2828		});
2829	}
2830
2831	public void fetchAvatar(Account account, Avatar avatar) {
2832		fetchAvatar(account, avatar, null);
2833	}
2834
2835	public void fetchAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2836		final String KEY = generateFetchKey(account, avatar);
2837		synchronized (this.mInProgressAvatarFetches) {
2838			if (!this.mInProgressAvatarFetches.contains(KEY)) {
2839				switch (avatar.origin) {
2840					case PEP:
2841						this.mInProgressAvatarFetches.add(KEY);
2842						fetchAvatarPep(account, avatar, callback);
2843						break;
2844					case VCARD:
2845						this.mInProgressAvatarFetches.add(KEY);
2846						fetchAvatarVcard(account, avatar, callback);
2847						break;
2848				}
2849			}
2850		}
2851	}
2852
2853	private void fetchAvatarPep(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2854		IqPacket packet = this.mIqGenerator.retrievePepAvatar(avatar);
2855		sendIqPacket(account, packet, (a, result) -> {
2856			synchronized (mInProgressAvatarFetches) {
2857				mInProgressAvatarFetches.remove(generateFetchKey(a, avatar));
2858			}
2859			final String ERROR = a.getJid().asBareJid() + ": fetching avatar for " + avatar.owner + " failed ";
2860			if (result.getType() == IqPacket.TYPE.RESULT) {
2861				avatar.image = mIqParser.avatarData(result);
2862				if (avatar.image != null) {
2863					if (getFileBackend().save(avatar)) {
2864						if (a.getJid().asBareJid().equals(avatar.owner)) {
2865							if (a.setAvatar(avatar.getFilename())) {
2866								databaseBackend.updateAccount(a);
2867							}
2868							getAvatarService().clear(a);
2869							updateConversationUi();
2870							updateAccountUi();
2871						} else {
2872							Contact contact = a.getRoster().getContact(avatar.owner);
2873							contact.setAvatar(avatar);
2874							getAvatarService().clear(contact);
2875							updateConversationUi();
2876							updateRosterUi();
2877						}
2878						if (callback != null) {
2879							callback.success(avatar);
2880						}
2881						Log.d(Config.LOGTAG, a.getJid().asBareJid()
2882								+ ": successfully fetched pep avatar for " + avatar.owner);
2883						return;
2884					}
2885				} else {
2886
2887					Log.d(Config.LOGTAG, ERROR + "(parsing error)");
2888				}
2889			} else {
2890				Element error = result.findChild("error");
2891				if (error == null) {
2892					Log.d(Config.LOGTAG, ERROR + "(server error)");
2893				} else {
2894					Log.d(Config.LOGTAG, ERROR + error.toString());
2895				}
2896			}
2897			if (callback != null) {
2898				callback.error(0, null);
2899			}
2900
2901		});
2902	}
2903
2904	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
2905		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
2906		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2907			@Override
2908			public void onIqPacketReceived(Account account, IqPacket packet) {
2909				synchronized (mInProgressAvatarFetches) {
2910					mInProgressAvatarFetches.remove(generateFetchKey(account, avatar));
2911				}
2912				if (packet.getType() == IqPacket.TYPE.RESULT) {
2913					Element vCard = packet.findChild("vCard", "vcard-temp");
2914					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
2915					String image = photo != null ? photo.findChildContent("BINVAL") : null;
2916					if (image != null) {
2917						avatar.image = image;
2918						if (getFileBackend().save(avatar)) {
2919							Log.d(Config.LOGTAG, account.getJid().asBareJid()
2920									+ ": successfully fetched vCard avatar for " + avatar.owner);
2921							if (avatar.owner.isBareJid()) {
2922								if (account.getJid().asBareJid().equals(avatar.owner) && account.getAvatar() == null) {
2923									Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": had no avatar. replacing with vcard");
2924									account.setAvatar(avatar.getFilename());
2925									databaseBackend.updateAccount(account);
2926									getAvatarService().clear(account);
2927									updateAccountUi();
2928								} else {
2929									Contact contact = account.getRoster().getContact(avatar.owner);
2930									contact.setAvatar(avatar);
2931									getAvatarService().clear(contact);
2932									updateRosterUi();
2933								}
2934								updateConversationUi();
2935							} else {
2936								Conversation conversation = find(account, avatar.owner.asBareJid());
2937								if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
2938									MucOptions.User user = conversation.getMucOptions().findUserByFullJid(avatar.owner);
2939									if (user != null) {
2940										if (user.setAvatar(avatar)) {
2941											getAvatarService().clear(user);
2942											updateConversationUi();
2943											updateMucRosterUi();
2944										}
2945									}
2946								}
2947							}
2948						}
2949					}
2950				}
2951			}
2952		});
2953	}
2954
2955	public void checkForAvatar(Account account, final UiCallback<Avatar> callback) {
2956		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
2957		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
2958
2959			@Override
2960			public void onIqPacketReceived(Account account, IqPacket packet) {
2961				if (packet.getType() == IqPacket.TYPE.RESULT) {
2962					Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub");
2963					if (pubsub != null) {
2964						Element items = pubsub.findChild("items");
2965						if (items != null) {
2966							Avatar avatar = Avatar.parseMetadata(items);
2967							if (avatar != null) {
2968								avatar.owner = account.getJid().asBareJid();
2969								if (fileBackend.isAvatarCached(avatar)) {
2970									if (account.setAvatar(avatar.getFilename())) {
2971										databaseBackend.updateAccount(account);
2972									}
2973									getAvatarService().clear(account);
2974									callback.success(avatar);
2975								} else {
2976									fetchAvatarPep(account, avatar, callback);
2977								}
2978								return;
2979							}
2980						}
2981					}
2982				}
2983				callback.error(0, null);
2984			}
2985		});
2986	}
2987
2988	public void deleteContactOnServer(Contact contact) {
2989		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
2990		contact.resetOption(Contact.Options.DIRTY_PUSH);
2991		contact.setOption(Contact.Options.DIRTY_DELETE);
2992		Account account = contact.getAccount();
2993		if (account.getStatus() == Account.State.ONLINE) {
2994			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
2995			Element item = iq.query(Namespace.ROSTER).addChild("item");
2996			item.setAttribute("jid", contact.getJid().toString());
2997			item.setAttribute("subscription", "remove");
2998			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
2999		}
3000	}
3001
3002	public void updateConversation(final Conversation conversation) {
3003		mDatabaseWriterExecutor.execute(() -> databaseBackend.updateConversation(conversation));
3004	}
3005
3006	private void reconnectAccount(final Account account, final boolean force, final boolean interactive) {
3007		synchronized (account) {
3008			XmppConnection connection = account.getXmppConnection();
3009			if (connection == null) {
3010				connection = createConnection(account);
3011				account.setXmppConnection(connection);
3012			}
3013			boolean hasInternet = hasInternetConnection();
3014			if (account.isEnabled() && hasInternet) {
3015				if (!force) {
3016					disconnect(account, false);
3017				}
3018				Thread thread = new Thread(connection);
3019				connection.setInteractive(interactive);
3020				connection.prepareNewConnection();
3021				connection.interrupt();
3022				thread.start();
3023				scheduleWakeUpCall(Config.CONNECT_DISCO_TIMEOUT, account.getUuid().hashCode());
3024			} else {
3025				disconnect(account, force || account.getTrueStatus().isError() || !hasInternet);
3026				account.getRoster().clearPresences();
3027				connection.resetEverything();
3028				final AxolotlService axolotlService = account.getAxolotlService();
3029				if (axolotlService != null) {
3030					axolotlService.resetBrokenness();
3031				}
3032				if (!hasInternet) {
3033					account.setStatus(Account.State.NO_INTERNET);
3034				}
3035			}
3036		}
3037	}
3038
3039	public void reconnectAccountInBackground(final Account account) {
3040		new Thread(() -> reconnectAccount(account, false, true)).start();
3041	}
3042
3043	public void invite(Conversation conversation, Jid contact) {
3044		Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": inviting " + contact + " to " + conversation.getJid().asBareJid());
3045		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
3046		sendMessagePacket(conversation.getAccount(), packet);
3047	}
3048
3049	public void directInvite(Conversation conversation, Jid jid) {
3050		MessagePacket packet = mMessageGenerator.directInvite(conversation, jid);
3051		sendMessagePacket(conversation.getAccount(), packet);
3052	}
3053
3054	public void resetSendingToWaiting(Account account) {
3055		for (Conversation conversation : getConversations()) {
3056			if (conversation.getAccount() == account) {
3057				conversation.findUnsentTextMessages(new Conversation.OnMessageFound() {
3058
3059					@Override
3060					public void onMessageFound(Message message) {
3061						markMessage(message, Message.STATUS_WAITING);
3062					}
3063				});
3064			}
3065		}
3066	}
3067
3068	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status) {
3069		return markMessage(account, recipient, uuid, status, null);
3070	}
3071
3072	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status, String errorMessage) {
3073		if (uuid == null) {
3074			return null;
3075		}
3076		for (Conversation conversation : getConversations()) {
3077			if (conversation.getJid().asBareJid().equals(recipient) && conversation.getAccount() == account) {
3078				final Message message = conversation.findSentMessageWithUuidOrRemoteId(uuid);
3079				if (message != null) {
3080					markMessage(message, status, errorMessage);
3081				}
3082				return message;
3083			}
3084		}
3085		return null;
3086	}
3087
3088	public boolean markMessage(Conversation conversation, String uuid, int status, String serverMessageId) {
3089		if (uuid == null) {
3090			return false;
3091		} else {
3092			Message message = conversation.findSentMessageWithUuid(uuid);
3093			if (message != null) {
3094				if (message.getServerMsgId() == null) {
3095					message.setServerMsgId(serverMessageId);
3096				}
3097				markMessage(message, status);
3098				return true;
3099			} else {
3100				return false;
3101			}
3102		}
3103	}
3104
3105	public void markMessage(Message message, int status) {
3106		markMessage(message, status, null);
3107	}
3108
3109
3110	public void markMessage(Message message, int status, String errorMessage) {
3111		final int c = message.getStatus();
3112		if (status == Message.STATUS_SEND_FAILED && (c == Message.STATUS_SEND_RECEIVED || c == Message.STATUS_SEND_DISPLAYED)) {
3113			return;
3114		}
3115		if (status == Message.STATUS_SEND_RECEIVED && c == Message.STATUS_SEND_DISPLAYED) {
3116			return;
3117		}
3118		message.setErrorMessage(errorMessage);
3119		message.setStatus(status);
3120		databaseBackend.updateMessage(message);
3121		updateConversationUi();
3122	}
3123
3124	private SharedPreferences getPreferences() {
3125		return PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
3126	}
3127
3128	public long getAutomaticMessageDeletionDate() {
3129		final long timeout = getLongPreference(SettingsActivity.AUTOMATIC_MESSAGE_DELETION, R.integer.automatic_message_deletion);
3130		return timeout == 0 ? timeout : (System.currentTimeMillis() - (timeout * 1000));
3131	}
3132
3133	public long getLongPreference(String name, @IntegerRes int res) {
3134		long defaultValue = getResources().getInteger(res);
3135		try {
3136			return Long.parseLong(getPreferences().getString(name, String.valueOf(defaultValue)));
3137		} catch (NumberFormatException e) {
3138			return defaultValue;
3139		}
3140	}
3141
3142	public boolean getBooleanPreference(String name, @BoolRes int res) {
3143		return getPreferences().getBoolean(name, getResources().getBoolean(res));
3144	}
3145
3146	public boolean confirmMessages() {
3147		return getBooleanPreference("confirm_messages", R.bool.confirm_messages);
3148	}
3149
3150	public boolean allowMessageCorrection() {
3151		return getBooleanPreference("allow_message_correction", R.bool.allow_message_correction);
3152	}
3153
3154	public boolean sendChatStates() {
3155		return getBooleanPreference("chat_states", R.bool.chat_states);
3156	}
3157
3158	private boolean respectAutojoin() {
3159		return getBooleanPreference("autojoin", R.bool.autojoin);
3160	}
3161
3162	public boolean indicateReceived() {
3163		return getBooleanPreference("indicate_received", R.bool.indicate_received);
3164	}
3165
3166	public boolean useTorToConnect() {
3167		return Config.FORCE_ORBOT || getBooleanPreference("use_tor", R.bool.use_tor);
3168	}
3169
3170	public boolean showExtendedConnectionOptions() {
3171		return getBooleanPreference("show_connection_options", R.bool.show_connection_options);
3172	}
3173
3174	public boolean broadcastLastActivity() {
3175		return getBooleanPreference(SettingsActivity.BROADCAST_LAST_ACTIVITY, R.bool.last_activity);
3176	}
3177
3178	public int unreadCount() {
3179		int count = 0;
3180		for (Conversation conversation : getConversations()) {
3181			count += conversation.unreadCount();
3182		}
3183		return count;
3184	}
3185
3186
3187	public void showErrorToastInUi(int resId) {
3188		if (mOnShowErrorToast != null) {
3189			mOnShowErrorToast.onShowErrorToast(resId);
3190		}
3191	}
3192
3193	public void updateConversationUi() {
3194		if (mOnConversationUpdate != null) {
3195			mOnConversationUpdate.onConversationUpdate();
3196		}
3197	}
3198
3199	public void updateAccountUi() {
3200		if (mOnAccountUpdate != null) {
3201			mOnAccountUpdate.onAccountUpdate();
3202		}
3203	}
3204
3205	public void updateRosterUi() {
3206		if (mOnRosterUpdate != null) {
3207			mOnRosterUpdate.onRosterUpdate();
3208		}
3209	}
3210
3211	public boolean displayCaptchaRequest(Account account, String id, Data data, Bitmap captcha) {
3212		if (mOnCaptchaRequested != null) {
3213			DisplayMetrics metrics = getApplicationContext().getResources().getDisplayMetrics();
3214			Bitmap scaled = Bitmap.createScaledBitmap(captcha, (int) (captcha.getWidth() * metrics.scaledDensity),
3215					(int) (captcha.getHeight() * metrics.scaledDensity), false);
3216
3217			mOnCaptchaRequested.onCaptchaRequested(account, id, data, scaled);
3218			return true;
3219		}
3220		return false;
3221	}
3222
3223	public void updateBlocklistUi(final OnUpdateBlocklist.Status status) {
3224		if (mOnUpdateBlocklist != null) {
3225			mOnUpdateBlocklist.OnUpdateBlocklist(status);
3226		}
3227	}
3228
3229	public void updateMucRosterUi() {
3230		if (mOnMucRosterUpdate != null) {
3231			mOnMucRosterUpdate.onMucRosterUpdate();
3232		}
3233	}
3234
3235	public void keyStatusUpdated(AxolotlService.FetchStatus report) {
3236		if (mOnKeyStatusUpdated != null) {
3237			mOnKeyStatusUpdated.onKeyStatusUpdated(report);
3238		}
3239	}
3240
3241	public Account findAccountByJid(final Jid accountJid) {
3242		for (Account account : this.accounts) {
3243			if (account.getJid().asBareJid().equals(accountJid.asBareJid())) {
3244				return account;
3245			}
3246		}
3247		return null;
3248	}
3249
3250	public Account findAccountByUuid(final String uuid) {
3251		for(Account account : this.accounts) {
3252			if (account.getUuid().equals(uuid)) {
3253				return account;
3254			}
3255		}
3256		return null;
3257	}
3258
3259	public Conversation findConversationByUuid(String uuid) {
3260		for (Conversation conversation : getConversations()) {
3261			if (conversation.getUuid().equals(uuid)) {
3262				return conversation;
3263			}
3264		}
3265		return null;
3266	}
3267
3268	public boolean markRead(final Conversation conversation, boolean dismiss) {
3269		return markRead(conversation, null, dismiss).size() > 0;
3270	}
3271
3272	public void markRead(final Conversation conversation) {
3273		markRead(conversation, null, true);
3274	}
3275
3276	public List<Message> markRead(final Conversation conversation, String upToUuid, boolean dismiss) {
3277		if (dismiss) {
3278			mNotificationService.clear(conversation);
3279		}
3280		final List<Message> readMessages = conversation.markRead(upToUuid);
3281		if (readMessages.size() > 0) {
3282			Runnable runnable = () -> {
3283				for (Message message : readMessages) {
3284					databaseBackend.updateMessage(message);
3285				}
3286			};
3287			mDatabaseWriterExecutor.execute(runnable);
3288			updateUnreadCountBadge();
3289			return readMessages;
3290		} else {
3291			return readMessages;
3292		}
3293	}
3294
3295	public synchronized void updateUnreadCountBadge() {
3296		int count = unreadCount();
3297		if (unreadCount != count) {
3298			Log.d(Config.LOGTAG, "update unread count to " + count);
3299			if (count > 0) {
3300				ShortcutBadger.applyCount(getApplicationContext(), count);
3301			} else {
3302				ShortcutBadger.removeCount(getApplicationContext());
3303			}
3304			unreadCount = count;
3305		}
3306	}
3307
3308	public void sendReadMarker(final Conversation conversation, String upToUuid) {
3309		final boolean isPrivateAndNonAnonymousMuc = conversation.getMode() == Conversation.MODE_MULTI && conversation.isPrivateAndNonAnonymous();
3310		final List<Message> readMessages = this.markRead(conversation, upToUuid, true);
3311		if (readMessages.size() > 0) {
3312			updateConversationUi();
3313		}
3314		final Message markable = Conversation.getLatestMarkableMessage(readMessages, isPrivateAndNonAnonymousMuc);
3315		if (confirmMessages()
3316				&& markable != null
3317				&& (markable.trusted() || isPrivateAndNonAnonymousMuc)
3318				&& markable.getRemoteMsgId() != null) {
3319			Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": sending read marker to " + markable.getCounterpart().toString());
3320			Account account = conversation.getAccount();
3321			final Jid to = markable.getCounterpart();
3322			final boolean groupChat = conversation.getMode() == Conversation.MODE_MULTI;
3323			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId(), markable.getCounterpart(), groupChat);
3324			this.sendMessagePacket(conversation.getAccount(), packet);
3325		}
3326	}
3327
3328	public SecureRandom getRNG() {
3329		return this.mRandom;
3330	}
3331
3332	public MemorizingTrustManager getMemorizingTrustManager() {
3333		return this.mMemorizingTrustManager;
3334	}
3335
3336	public void setMemorizingTrustManager(MemorizingTrustManager trustManager) {
3337		this.mMemorizingTrustManager = trustManager;
3338	}
3339
3340	public void updateMemorizingTrustmanager() {
3341		final MemorizingTrustManager tm;
3342		final boolean dontTrustSystemCAs = getBooleanPreference("dont_trust_system_cas", R.bool.dont_trust_system_cas);
3343		if (dontTrustSystemCAs) {
3344			tm = new MemorizingTrustManager(getApplicationContext(), null);
3345		} else {
3346			tm = new MemorizingTrustManager(getApplicationContext());
3347		}
3348		setMemorizingTrustManager(tm);
3349	}
3350
3351	public LruCache<String, Bitmap> getBitmapCache() {
3352		return this.mBitmapCache;
3353	}
3354
3355	public Collection<String> getKnownHosts() {
3356		final Set<String> hosts = new HashSet<>();
3357		for (final Account account : getAccounts()) {
3358			hosts.add(account.getServer());
3359			for (final Contact contact : account.getRoster().getContacts()) {
3360				if (contact.showInRoster()) {
3361					final String server = contact.getServer();
3362					if (server != null && !hosts.contains(server)) {
3363						hosts.add(server);
3364					}
3365				}
3366			}
3367		}
3368		if (Config.DOMAIN_LOCK != null) {
3369			hosts.add(Config.DOMAIN_LOCK);
3370		}
3371		if (Config.MAGIC_CREATE_DOMAIN != null) {
3372			hosts.add(Config.MAGIC_CREATE_DOMAIN);
3373		}
3374		return hosts;
3375	}
3376
3377	public Collection<String> getKnownConferenceHosts() {
3378		final Set<String> mucServers = new HashSet<>();
3379		for (final Account account : accounts) {
3380			if (account.getXmppConnection() != null) {
3381				mucServers.addAll(account.getXmppConnection().getMucServers());
3382				for (Bookmark bookmark : account.getBookmarks()) {
3383					final Jid jid = bookmark.getJid();
3384					final String s = jid == null ? null : jid.getDomain();
3385					if (s != null) {
3386						mucServers.add(s);
3387					}
3388				}
3389			}
3390		}
3391		return mucServers;
3392	}
3393
3394	public void sendMessagePacket(Account account, MessagePacket packet) {
3395		XmppConnection connection = account.getXmppConnection();
3396		if (connection != null) {
3397			connection.sendMessagePacket(packet);
3398		}
3399	}
3400
3401	public void sendPresencePacket(Account account, PresencePacket packet) {
3402		XmppConnection connection = account.getXmppConnection();
3403		if (connection != null) {
3404			connection.sendPresencePacket(packet);
3405		}
3406	}
3407
3408	public void sendCreateAccountWithCaptchaPacket(Account account, String id, Data data) {
3409		final XmppConnection connection = account.getXmppConnection();
3410		if (connection != null) {
3411			IqPacket request = mIqGenerator.generateCreateAccountWithCaptcha(account, id, data);
3412			connection.sendUnmodifiedIqPacket(request, connection.registrationResponseListener, true);
3413		}
3414	}
3415
3416	public void sendIqPacket(final Account account, final IqPacket packet, final OnIqPacketReceived callback) {
3417		final XmppConnection connection = account.getXmppConnection();
3418		if (connection != null) {
3419			connection.sendIqPacket(packet, callback);
3420		}
3421	}
3422
3423	public void sendPresence(final Account account) {
3424		sendPresence(account, checkListeners() && broadcastLastActivity());
3425	}
3426
3427	private void sendPresence(final Account account, final boolean includeIdleTimestamp) {
3428		Presence.Status status;
3429		if (manuallyChangePresence()) {
3430			status = account.getPresenceStatus();
3431		} else {
3432			status = getTargetPresence();
3433		}
3434		PresencePacket packet = mPresenceGenerator.selfPresence(account, status);
3435		String message = account.getPresenceStatusMessage();
3436		if (message != null && !message.isEmpty()) {
3437			packet.addChild(new Element("status").setContent(message));
3438		}
3439		if (mLastActivity > 0 && includeIdleTimestamp) {
3440			long since = Math.min(mLastActivity, System.currentTimeMillis()); //don't send future dates
3441			packet.addChild("idle", Namespace.IDLE).setAttribute("since", AbstractGenerator.getTimestamp(since));
3442		}
3443		sendPresencePacket(account, packet);
3444	}
3445
3446	private void deactivateGracePeriod() {
3447		for (Account account : getAccounts()) {
3448			account.deactivateGracePeriod();
3449		}
3450	}
3451
3452	public void refreshAllPresences() {
3453		boolean includeIdleTimestamp = checkListeners() && broadcastLastActivity();
3454		for (Account account : getAccounts()) {
3455			if (account.isEnabled()) {
3456				sendPresence(account, includeIdleTimestamp);
3457			}
3458		}
3459	}
3460
3461	private void refreshAllGcmTokens() {
3462		for (Account account : getAccounts()) {
3463			if (account.isOnlineAndConnected() && mPushManagementService.available(account)) {
3464				mPushManagementService.registerPushTokenOnServer(account);
3465			}
3466		}
3467	}
3468
3469	private void sendOfflinePresence(final Account account) {
3470		Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": sending offline presence");
3471		sendPresencePacket(account, mPresenceGenerator.sendOfflinePresence(account));
3472	}
3473
3474	public MessageGenerator getMessageGenerator() {
3475		return this.mMessageGenerator;
3476	}
3477
3478	public PresenceGenerator getPresenceGenerator() {
3479		return this.mPresenceGenerator;
3480	}
3481
3482	public IqGenerator getIqGenerator() {
3483		return this.mIqGenerator;
3484	}
3485
3486	public IqParser getIqParser() {
3487		return this.mIqParser;
3488	}
3489
3490	public JingleConnectionManager getJingleConnectionManager() {
3491		return this.mJingleConnectionManager;
3492	}
3493
3494	public MessageArchiveService getMessageArchiveService() {
3495		return this.mMessageArchiveService;
3496	}
3497
3498	public List<Contact> findContacts(Jid jid, String accountJid) {
3499		ArrayList<Contact> contacts = new ArrayList<>();
3500		for (Account account : getAccounts()) {
3501			if ((account.isEnabled() || accountJid != null)
3502					&& (accountJid == null || accountJid.equals(account.getJid().asBareJid().toString()))) {
3503				Contact contact = account.getRoster().getContactFromRoster(jid);
3504				if (contact != null) {
3505					contacts.add(contact);
3506				}
3507			}
3508		}
3509		return contacts;
3510	}
3511
3512	public Conversation findFirstMuc(Jid jid) {
3513		for (Conversation conversation : getConversations()) {
3514			if (conversation.getAccount().isEnabled() && conversation.getJid().asBareJid().equals(jid.asBareJid()) && conversation.getMode() == Conversation.MODE_MULTI) {
3515				return conversation;
3516			}
3517		}
3518		return null;
3519	}
3520
3521	public NotificationService getNotificationService() {
3522		return this.mNotificationService;
3523	}
3524
3525	public HttpConnectionManager getHttpConnectionManager() {
3526		return this.mHttpConnectionManager;
3527	}
3528
3529	public void resendFailedMessages(final Message message) {
3530		final Collection<Message> messages = new ArrayList<>();
3531		Message current = message;
3532		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
3533			messages.add(current);
3534			if (current.mergeable(current.next())) {
3535				current = current.next();
3536			} else {
3537				break;
3538			}
3539		}
3540		for (final Message msg : messages) {
3541			msg.setTime(System.currentTimeMillis());
3542			markMessage(msg, Message.STATUS_WAITING);
3543			this.resendMessage(msg, false);
3544		}
3545		if (message.getConversation() instanceof Conversation) {
3546			((Conversation) message.getConversation()).sort();
3547		}
3548		updateConversationUi();
3549	}
3550
3551	public void clearConversationHistory(final Conversation conversation) {
3552		final long clearDate;
3553		final String reference;
3554		if (conversation.countMessages() > 0) {
3555			Message latestMessage = conversation.getLatestMessage();
3556			clearDate = latestMessage.getTimeSent() + 1000;
3557			reference = latestMessage.getServerMsgId();
3558		} else {
3559			clearDate = System.currentTimeMillis();
3560			reference = null;
3561		}
3562		conversation.clearMessages();
3563		conversation.setHasMessagesLeftOnServer(false); //avoid messages getting loaded through mam
3564		conversation.setLastClearHistory(clearDate, reference);
3565		Runnable runnable = () -> {
3566			databaseBackend.deleteMessagesInConversation(conversation);
3567			databaseBackend.updateConversation(conversation);
3568		};
3569		mDatabaseWriterExecutor.execute(runnable);
3570	}
3571
3572	public boolean sendBlockRequest(final Blockable blockable, boolean reportSpam) {
3573		if (blockable != null && blockable.getBlockedJid() != null) {
3574			final Jid jid = blockable.getBlockedJid();
3575			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetBlockRequest(jid, reportSpam), new OnIqPacketReceived() {
3576
3577				@Override
3578				public void onIqPacketReceived(final Account account, final IqPacket packet) {
3579					if (packet.getType() == IqPacket.TYPE.RESULT) {
3580						account.getBlocklist().add(jid);
3581						updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
3582					}
3583				}
3584			});
3585			if (removeBlockedConversations(blockable.getAccount(), jid)) {
3586				updateConversationUi();
3587				return true;
3588			} else {
3589				return false;
3590			}
3591		} else {
3592			return false;
3593		}
3594	}
3595
3596	public boolean removeBlockedConversations(final Account account, final Jid blockedJid) {
3597		boolean removed = false;
3598		synchronized (this.conversations) {
3599			boolean domainJid = blockedJid.getLocal() == null;
3600			for (Conversation conversation : this.conversations) {
3601				boolean jidMatches = (domainJid && blockedJid.getDomain().equals(conversation.getJid().getDomain()))
3602						|| blockedJid.equals(conversation.getJid().asBareJid());
3603				if (conversation.getAccount() == account
3604						&& conversation.getMode() == Conversation.MODE_SINGLE
3605						&& jidMatches) {
3606					this.conversations.remove(conversation);
3607					markRead(conversation);
3608					conversation.setStatus(Conversation.STATUS_ARCHIVED);
3609					Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": archiving conversation " + conversation.getJid().asBareJid() + " because jid was blocked");
3610					updateConversation(conversation);
3611					removed = true;
3612				}
3613			}
3614		}
3615		return removed;
3616	}
3617
3618	public void sendUnblockRequest(final Blockable blockable) {
3619		if (blockable != null && blockable.getJid() != null) {
3620			final Jid jid = blockable.getBlockedJid();
3621			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetUnblockRequest(jid), new OnIqPacketReceived() {
3622				@Override
3623				public void onIqPacketReceived(final Account account, final IqPacket packet) {
3624					if (packet.getType() == IqPacket.TYPE.RESULT) {
3625						account.getBlocklist().remove(jid);
3626						updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
3627					}
3628				}
3629			});
3630		}
3631	}
3632
3633	public void publishDisplayName(Account account) {
3634		String displayName = account.getDisplayName();
3635		if (displayName != null && !displayName.isEmpty()) {
3636			IqPacket publish = mIqGenerator.publishNick(displayName);
3637			sendIqPacket(account, publish, (account1, packet) -> {
3638				if (packet.getType() == IqPacket.TYPE.ERROR) {
3639					Log.d(Config.LOGTAG, account1.getJid().asBareJid() + ": could not publish nick");
3640				}
3641			});
3642		}
3643	}
3644
3645	public ServiceDiscoveryResult getCachedServiceDiscoveryResult(Pair<String, String> key) {
3646		ServiceDiscoveryResult result = discoCache.get(key);
3647		if (result != null) {
3648			return result;
3649		} else {
3650			result = databaseBackend.findDiscoveryResult(key.first, key.second);
3651			if (result != null) {
3652				discoCache.put(key, result);
3653			}
3654			return result;
3655		}
3656	}
3657
3658	public void fetchCaps(Account account, final Jid jid, final Presence presence) {
3659		final Pair<String, String> key = new Pair<>(presence.getHash(), presence.getVer());
3660		ServiceDiscoveryResult disco = getCachedServiceDiscoveryResult(key);
3661		if (disco != null) {
3662			presence.setServiceDiscoveryResult(disco);
3663		} else {
3664			if (!account.inProgressDiscoFetches.contains(key)) {
3665				account.inProgressDiscoFetches.add(key);
3666				IqPacket request = new IqPacket(IqPacket.TYPE.GET);
3667				request.setTo(jid);
3668				final String node = presence.getNode();
3669				final String ver = presence.getVer();
3670				final Element query = request.query("http://jabber.org/protocol/disco#info");
3671				if (node != null && ver != null) {
3672					query.setAttribute("node",node+"#"+ver);
3673				}
3674				Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": making disco request for " + key.second + " to " + jid);
3675				sendIqPacket(account, request, (a, response) -> {
3676					if (response.getType() == IqPacket.TYPE.RESULT) {
3677						ServiceDiscoveryResult discoveryResult = new ServiceDiscoveryResult(response);
3678						if (presence.getVer().equals(discoveryResult.getVer())) {
3679							databaseBackend.insertDiscoveryResult(discoveryResult);
3680							injectServiceDiscorveryResult(a.getRoster(), presence.getHash(), presence.getVer(), discoveryResult);
3681						} else {
3682							Log.d(Config.LOGTAG, a.getJid().asBareJid() + ": mismatch in caps for contact " + jid + " " + presence.getVer() + " vs " + discoveryResult.getVer());
3683						}
3684					}
3685					a.inProgressDiscoFetches.remove(key);
3686				});
3687			}
3688		}
3689	}
3690
3691	private void injectServiceDiscorveryResult(Roster roster, String hash, String ver, ServiceDiscoveryResult disco) {
3692		for (Contact contact : roster.getContacts()) {
3693			for (Presence presence : contact.getPresences().getPresences().values()) {
3694				if (hash.equals(presence.getHash()) && ver.equals(presence.getVer())) {
3695					presence.setServiceDiscoveryResult(disco);
3696				}
3697			}
3698		}
3699	}
3700
3701	public void fetchMamPreferences(Account account, final OnMamPreferencesFetched callback) {
3702		final boolean legacy = account.getXmppConnection().getFeatures().mamLegacy();
3703		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
3704		request.addChild("prefs", legacy ? Namespace.MAM_LEGACY : Namespace.MAM);
3705		sendIqPacket(account, request, (account1, packet) -> {
3706			Element prefs = packet.findChild("prefs", legacy ? Namespace.MAM_LEGACY : Namespace.MAM);
3707			if (packet.getType() == IqPacket.TYPE.RESULT && prefs != null) {
3708				callback.onPreferencesFetched(prefs);
3709			} else {
3710				callback.onPreferencesFetchFailed();
3711			}
3712		});
3713	}
3714
3715	public PushManagementService getPushManagementService() {
3716		return mPushManagementService;
3717	}
3718
3719	public Account getPendingAccount() {
3720		Account pending = null;
3721		for (Account account : getAccounts()) {
3722			if (!account.isOptionSet(Account.OPTION_LOGGED_IN_SUCCESSFULLY)) {
3723				pending = account;
3724			} else {
3725				return null;
3726			}
3727		}
3728		return pending;
3729	}
3730
3731	public void changeStatus(Account account, PresenceTemplate template, String signature) {
3732		if (!template.getStatusMessage().isEmpty()) {
3733			databaseBackend.insertPresenceTemplate(template);
3734		}
3735		account.setPgpSignature(signature);
3736		account.setPresenceStatus(template.getStatus());
3737		account.setPresenceStatusMessage(template.getStatusMessage());
3738		databaseBackend.updateAccount(account);
3739		sendPresence(account);
3740	}
3741
3742	public List<PresenceTemplate> getPresenceTemplates(Account account) {
3743		List<PresenceTemplate> templates = databaseBackend.getPresenceTemplates();
3744		for (PresenceTemplate template : account.getSelfContact().getPresences().asTemplates()) {
3745			if (!templates.contains(template)) {
3746				templates.add(0, template);
3747			}
3748		}
3749		return templates;
3750	}
3751
3752	public void saveConversationAsBookmark(Conversation conversation, String name) {
3753		Account account = conversation.getAccount();
3754		Bookmark bookmark = new Bookmark(account, conversation.getJid().asBareJid());
3755		if (!conversation.getJid().isBareJid()) {
3756			bookmark.setNick(conversation.getJid().getResource());
3757		}
3758		if (name != null && !name.trim().isEmpty()) {
3759			bookmark.setBookmarkName(name.trim());
3760		}
3761		bookmark.setAutojoin(getPreferences().getBoolean("autojoin", getResources().getBoolean(R.bool.autojoin)));
3762		account.getBookmarks().add(bookmark);
3763		pushBookmarks(account);
3764		bookmark.setConversation(conversation);
3765	}
3766
3767	public boolean verifyFingerprints(Contact contact, List<XmppUri.Fingerprint> fingerprints) {
3768		boolean performedVerification = false;
3769		final AxolotlService axolotlService = contact.getAccount().getAxolotlService();
3770		for (XmppUri.Fingerprint fp : fingerprints) {
3771			if (fp.type == XmppUri.FingerprintType.OMEMO) {
3772				String fingerprint = "05" + fp.fingerprint.replaceAll("\\s", "");
3773				FingerprintStatus fingerprintStatus = axolotlService.getFingerprintTrust(fingerprint);
3774				if (fingerprintStatus != null) {
3775					if (!fingerprintStatus.isVerified()) {
3776						performedVerification = true;
3777						axolotlService.setFingerprintTrust(fingerprint, fingerprintStatus.toVerified());
3778					}
3779				} else {
3780					axolotlService.preVerifyFingerprint(contact, fingerprint);
3781				}
3782			}
3783		}
3784		return performedVerification;
3785	}
3786
3787	public boolean verifyFingerprints(Account account, List<XmppUri.Fingerprint> fingerprints) {
3788		final AxolotlService axolotlService = account.getAxolotlService();
3789		boolean verifiedSomething = false;
3790		for (XmppUri.Fingerprint fp : fingerprints) {
3791			if (fp.type == XmppUri.FingerprintType.OMEMO) {
3792				String fingerprint = "05" + fp.fingerprint.replaceAll("\\s", "");
3793				Log.d(Config.LOGTAG, "trying to verify own fp=" + fingerprint);
3794				FingerprintStatus fingerprintStatus = axolotlService.getFingerprintTrust(fingerprint);
3795				if (fingerprintStatus != null) {
3796					if (!fingerprintStatus.isVerified()) {
3797						axolotlService.setFingerprintTrust(fingerprint, fingerprintStatus.toVerified());
3798						verifiedSomething = true;
3799					}
3800				} else {
3801					axolotlService.preVerifyFingerprint(account, fingerprint);
3802					verifiedSomething = true;
3803				}
3804			}
3805		}
3806		return verifiedSomething;
3807	}
3808
3809	public boolean blindTrustBeforeVerification() {
3810		return getBooleanPreference(SettingsActivity.BLIND_TRUST_BEFORE_VERIFICATION, R.bool.btbv);
3811	}
3812
3813	public ShortcutService getShortcutService() {
3814		return mShortcutService;
3815	}
3816
3817	public void pushMamPreferences(Account account, Element prefs) {
3818		IqPacket set = new IqPacket(IqPacket.TYPE.SET);
3819		set.addChild(prefs);
3820		sendIqPacket(account, set, null);
3821	}
3822
3823	public interface OnMamPreferencesFetched {
3824		void onPreferencesFetched(Element prefs);
3825
3826		void onPreferencesFetchFailed();
3827	}
3828
3829	public interface OnAccountCreated {
3830		void onAccountCreated(Account account);
3831
3832		void informUser(int r);
3833	}
3834
3835	public interface OnMoreMessagesLoaded {
3836		void onMoreMessagesLoaded(int count, Conversation conversation);
3837
3838		void informUser(int r);
3839	}
3840
3841	public interface OnAccountPasswordChanged {
3842		void onPasswordChangeSucceeded();
3843
3844		void onPasswordChangeFailed();
3845	}
3846
3847	public interface OnAffiliationChanged {
3848		void onAffiliationChangedSuccessful(Jid jid);
3849
3850		void onAffiliationChangeFailed(Jid jid, int resId);
3851	}
3852
3853	public interface OnRoleChanged {
3854		void onRoleChangedSuccessful(String nick);
3855
3856		void onRoleChangeFailed(String nick, int resid);
3857	}
3858
3859	public interface OnConversationUpdate {
3860		void onConversationUpdate();
3861	}
3862
3863	public interface OnAccountUpdate {
3864		void onAccountUpdate();
3865	}
3866
3867	public interface OnCaptchaRequested {
3868		void onCaptchaRequested(Account account, String id, Data data, Bitmap captcha);
3869	}
3870
3871	public interface OnRosterUpdate {
3872		void onRosterUpdate();
3873	}
3874
3875	public interface OnMucRosterUpdate {
3876		void onMucRosterUpdate();
3877	}
3878
3879	public interface OnConferenceConfigurationFetched {
3880		void onConferenceConfigurationFetched(Conversation conversation);
3881
3882		void onFetchFailed(Conversation conversation, Element error);
3883	}
3884
3885	public interface OnConferenceJoined {
3886		void onConferenceJoined(Conversation conversation);
3887	}
3888
3889	public interface OnConfigurationPushed {
3890		void onPushSucceeded();
3891
3892		void onPushFailed();
3893	}
3894
3895	public interface OnShowErrorToast {
3896		void onShowErrorToast(int resId);
3897	}
3898
3899	public class XmppConnectionBinder extends Binder {
3900		public XmppConnectionService getService() {
3901			return XmppConnectionService.this;
3902		}
3903	}
3904}