XmppConnectionService.java

   1package eu.siacs.conversations.services;
   2
   3import android.Manifest;
   4import android.annotation.SuppressLint;
   5import android.annotation.TargetApi;
   6import android.app.AlarmManager;
   7import android.app.Notification;
   8import android.app.NotificationManager;
   9import android.app.PendingIntent;
  10import android.app.Service;
  11import android.content.BroadcastReceiver;
  12import android.content.ComponentName;
  13import android.content.Context;
  14import android.content.Intent;
  15import android.content.IntentFilter;
  16import android.content.SharedPreferences;
  17import android.content.pm.PackageManager;
  18import android.database.ContentObserver;
  19import android.graphics.Bitmap;
  20import android.media.AudioManager;
  21import android.net.ConnectivityManager;
  22import android.net.NetworkInfo;
  23import android.net.Uri;
  24import android.os.Binder;
  25import android.os.Build;
  26import android.os.Bundle;
  27import android.os.Environment;
  28import android.os.IBinder;
  29import android.os.PowerManager;
  30import android.os.PowerManager.WakeLock;
  31import android.os.SystemClock;
  32import android.preference.PreferenceManager;
  33import android.provider.ContactsContract;
  34import android.security.KeyChain;
  35import android.support.annotation.BoolRes;
  36import android.support.annotation.IntegerRes;
  37import android.support.v4.app.RemoteInput;
  38import android.support.v4.content.ContextCompat;
  39import android.text.TextUtils;
  40import android.util.DisplayMetrics;
  41import android.util.Log;
  42import android.util.LruCache;
  43import android.util.Pair;
  44
  45import org.conscrypt.Conscrypt;
  46import org.openintents.openpgp.IOpenPgpService2;
  47import org.openintents.openpgp.util.OpenPgpApi;
  48import org.openintents.openpgp.util.OpenPgpServiceConnection;
  49
  50import java.io.File;
  51import java.net.URL;
  52import java.security.SecureRandom;
  53import java.security.Security;
  54import java.security.cert.CertificateException;
  55import java.security.cert.X509Certificate;
  56import java.util.ArrayList;
  57import java.util.Arrays;
  58import java.util.Collection;
  59import java.util.Collections;
  60import java.util.HashMap;
  61import java.util.HashSet;
  62import java.util.Hashtable;
  63import java.util.Iterator;
  64import java.util.List;
  65import java.util.ListIterator;
  66import java.util.Map;
  67import java.util.Set;
  68import java.util.WeakHashMap;
  69import java.util.concurrent.CopyOnWriteArrayList;
  70import java.util.concurrent.CountDownLatch;
  71import java.util.concurrent.ExecutorService;
  72import java.util.concurrent.Executors;
  73import java.util.concurrent.ThreadPoolExecutor;
  74import java.util.concurrent.atomic.AtomicBoolean;
  75import java.util.concurrent.atomic.AtomicLong;
  76
  77
  78import eu.siacs.conversations.Config;
  79import eu.siacs.conversations.R;
  80import eu.siacs.conversations.android.JabberIdContact;
  81import eu.siacs.conversations.crypto.OmemoSetting;
  82import eu.siacs.conversations.crypto.PgpDecryptionService;
  83import eu.siacs.conversations.crypto.PgpEngine;
  84import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  85import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
  86import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
  87import eu.siacs.conversations.entities.Account;
  88import eu.siacs.conversations.entities.Blockable;
  89import eu.siacs.conversations.entities.Bookmark;
  90import eu.siacs.conversations.entities.Contact;
  91import eu.siacs.conversations.entities.Conversation;
  92import eu.siacs.conversations.entities.Conversational;
  93import eu.siacs.conversations.entities.Message;
  94import eu.siacs.conversations.entities.MucOptions;
  95import eu.siacs.conversations.entities.MucOptions.OnRenameListener;
  96import eu.siacs.conversations.entities.Presence;
  97import eu.siacs.conversations.entities.PresenceTemplate;
  98import eu.siacs.conversations.entities.Roster;
  99import eu.siacs.conversations.entities.ServiceDiscoveryResult;
 100import eu.siacs.conversations.generator.AbstractGenerator;
 101import eu.siacs.conversations.generator.IqGenerator;
 102import eu.siacs.conversations.generator.MessageGenerator;
 103import eu.siacs.conversations.generator.PresenceGenerator;
 104import eu.siacs.conversations.http.HttpConnectionManager;
 105import eu.siacs.conversations.http.CustomURLStreamHandlerFactory;
 106import eu.siacs.conversations.http.services.MuclumbusService;
 107import eu.siacs.conversations.parser.AbstractParser;
 108import eu.siacs.conversations.parser.IqParser;
 109import eu.siacs.conversations.parser.MessageParser;
 110import eu.siacs.conversations.parser.PresenceParser;
 111import eu.siacs.conversations.persistance.DatabaseBackend;
 112import eu.siacs.conversations.persistance.FileBackend;
 113import eu.siacs.conversations.ui.ChooseAccountForProfilePictureActivity;
 114import eu.siacs.conversations.ui.SettingsActivity;
 115import eu.siacs.conversations.ui.UiCallback;
 116import eu.siacs.conversations.ui.interfaces.OnAvatarPublication;
 117import eu.siacs.conversations.ui.interfaces.OnMediaLoaded;
 118import eu.siacs.conversations.ui.interfaces.OnSearchResultsAvailable;
 119import eu.siacs.conversations.utils.Compatibility;
 120import eu.siacs.conversations.utils.ConversationsFileObserver;
 121import eu.siacs.conversations.utils.CryptoHelper;
 122import eu.siacs.conversations.utils.ExceptionHelper;
 123import eu.siacs.conversations.utils.MimeUtils;
 124import eu.siacs.conversations.utils.PhoneHelper;
 125import eu.siacs.conversations.utils.QuickLoader;
 126import eu.siacs.conversations.utils.ReplacingSerialSingleThreadExecutor;
 127import eu.siacs.conversations.utils.ReplacingTaskManager;
 128import eu.siacs.conversations.utils.Resolver;
 129import eu.siacs.conversations.utils.SerialSingleThreadExecutor;
 130import eu.siacs.conversations.utils.StringUtils;
 131import eu.siacs.conversations.utils.WakeLockHelper;
 132import eu.siacs.conversations.xml.Namespace;
 133import eu.siacs.conversations.utils.XmppUri;
 134import eu.siacs.conversations.xml.Element;
 135import eu.siacs.conversations.xmpp.OnBindListener;
 136import eu.siacs.conversations.xmpp.OnContactStatusChanged;
 137import eu.siacs.conversations.xmpp.OnIqPacketReceived;
 138import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
 139import eu.siacs.conversations.xmpp.OnMessageAcknowledged;
 140import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
 141import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
 142import eu.siacs.conversations.xmpp.OnStatusChanged;
 143import eu.siacs.conversations.xmpp.OnUpdateBlocklist;
 144import eu.siacs.conversations.xmpp.Patches;
 145import eu.siacs.conversations.xmpp.XmppConnection;
 146import eu.siacs.conversations.xmpp.chatstate.ChatState;
 147import eu.siacs.conversations.xmpp.forms.Data;
 148import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
 149import eu.siacs.conversations.xmpp.jingle.OnJinglePacketReceived;
 150import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
 151import eu.siacs.conversations.xmpp.mam.MamReference;
 152import eu.siacs.conversations.xmpp.pep.Avatar;
 153import eu.siacs.conversations.xmpp.pep.PublishOptions;
 154import eu.siacs.conversations.xmpp.stanzas.IqPacket;
 155import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
 156import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
 157import me.leolin.shortcutbadger.ShortcutBadger;
 158import retrofit2.Call;
 159import retrofit2.Callback;
 160import retrofit2.Response;
 161import retrofit2.Retrofit;
 162import retrofit2.converter.gson.GsonConverterFactory;
 163import rocks.xmpp.addr.Jid;
 164
 165public class XmppConnectionService extends Service {
 166
 167    public static final String ACTION_REPLY_TO_CONVERSATION = "reply_to_conversations";
 168    public static final String ACTION_MARK_AS_READ = "mark_as_read";
 169    public static final String ACTION_SNOOZE = "snooze";
 170    public static final String ACTION_CLEAR_NOTIFICATION = "clear_notification";
 171    public static final String ACTION_DISMISS_ERROR_NOTIFICATIONS = "dismiss_error";
 172    public static final String ACTION_TRY_AGAIN = "try_again";
 173    public static final String ACTION_IDLE_PING = "idle_ping";
 174    public static final String ACTION_FCM_TOKEN_REFRESH = "fcm_token_refresh";
 175    public static final String ACTION_FCM_MESSAGE_RECEIVED = "fcm_message_received";
 176    private static final String ACTION_POST_CONNECTIVITY_CHANGE = "eu.siacs.conversations.POST_CONNECTIVITY_CHANGE";
 177
 178    private static final String SETTING_LAST_ACTIVITY_TS = "last_activity_timestamp";
 179
 180    static {
 181        URL.setURLStreamHandlerFactory(new CustomURLStreamHandlerFactory());
 182    }
 183
 184    public final CountDownLatch restoredFromDatabaseLatch = new CountDownLatch(1);
 185    private final SerialSingleThreadExecutor mFileAddingExecutor = new SerialSingleThreadExecutor("FileAdding");
 186    private final SerialSingleThreadExecutor mVideoCompressionExecutor = new SerialSingleThreadExecutor("VideoCompression");
 187    private final SerialSingleThreadExecutor mDatabaseWriterExecutor = new SerialSingleThreadExecutor("DatabaseWriter");
 188    private final SerialSingleThreadExecutor mDatabaseReaderExecutor = new SerialSingleThreadExecutor("DatabaseReader");
 189    private final SerialSingleThreadExecutor mNotificationExecutor = new SerialSingleThreadExecutor("NotificationExecutor");
 190    private final ReplacingTaskManager mRosterSyncTaskManager = new ReplacingTaskManager();
 191    private final IBinder mBinder = new XmppConnectionBinder();
 192    private final List<Conversation> conversations = new CopyOnWriteArrayList<>();
 193    private final IqGenerator mIqGenerator = new IqGenerator(this);
 194    private final Set<String> mInProgressAvatarFetches = new HashSet<>();
 195    private final Set<String> mOmittedPepAvatarFetches = new HashSet<>();
 196    private final HashSet<Jid> mLowPingTimeoutMode = new HashSet<>();
 197    private final OnIqPacketReceived mDefaultIqHandler = (account, packet) -> {
 198        if (packet.getType() != IqPacket.TYPE.RESULT) {
 199            Element error = packet.findChild("error");
 200            String text = error != null ? error.findChildContent("text") : null;
 201            if (text != null) {
 202                Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received iq error - " + text);
 203            }
 204        }
 205    };
 206    public DatabaseBackend databaseBackend;
 207    private ReplacingSerialSingleThreadExecutor mContactMergerExecutor = new ReplacingSerialSingleThreadExecutor("ContactMerger");
 208    private long mLastActivity = 0;
 209    private FileBackend fileBackend = new FileBackend(this);
 210    private MemorizingTrustManager mMemorizingTrustManager;
 211    private NotificationService mNotificationService = new NotificationService(this);
 212    private ChannelDiscoveryService mChannelDiscoveryService = new ChannelDiscoveryService(this);
 213    private ShortcutService mShortcutService = new ShortcutService(this);
 214    private AtomicBoolean mInitialAddressbookSyncCompleted = new AtomicBoolean(false);
 215    private AtomicBoolean mForceForegroundService = new AtomicBoolean(false);
 216    private AtomicBoolean mForceDuringOnCreate = new AtomicBoolean(false);
 217    private OnMessagePacketReceived mMessageParser = new MessageParser(this);
 218    private OnPresencePacketReceived mPresenceParser = new PresenceParser(this);
 219    private IqParser mIqParser = new IqParser(this);
 220    private MessageGenerator mMessageGenerator = new MessageGenerator(this);
 221    public OnContactStatusChanged onContactStatusChanged = (contact, online) -> {
 222        Conversation conversation = find(getConversations(), contact);
 223        if (conversation != null) {
 224            if (online) {
 225                if (contact.getPresences().size() == 1) {
 226                    sendUnsentMessages(conversation);
 227                }
 228            }
 229        }
 230    };
 231    private PresenceGenerator mPresenceGenerator = new PresenceGenerator(this);
 232    private List<Account> accounts;
 233    private JingleConnectionManager mJingleConnectionManager = new JingleConnectionManager(
 234            this);
 235    private final OnJinglePacketReceived jingleListener = new OnJinglePacketReceived() {
 236
 237        @Override
 238        public void onJinglePacketReceived(Account account, JinglePacket packet) {
 239            mJingleConnectionManager.deliverPacket(account, packet);
 240        }
 241    };
 242    private HttpConnectionManager mHttpConnectionManager = new HttpConnectionManager(this);
 243    private AvatarService mAvatarService = new AvatarService(this);
 244    private MessageArchiveService mMessageArchiveService = new MessageArchiveService(this);
 245    private PushManagementService mPushManagementService = new PushManagementService(this);
 246    private QuickConversationsService mQuickConversationsService = new QuickConversationsService(this);
 247    private final ConversationsFileObserver fileObserver = new ConversationsFileObserver(
 248            Environment.getExternalStorageDirectory().getAbsolutePath()
 249    ) {
 250        @Override
 251        public void onEvent(int event, String path) {
 252            markFileDeleted(path);
 253        }
 254    };
 255    private final OnMessageAcknowledged mOnMessageAcknowledgedListener = new OnMessageAcknowledged() {
 256
 257        @Override
 258        public boolean onMessageAcknowledged(Account account, String uuid) {
 259            for (final Conversation conversation : getConversations()) {
 260                if (conversation.getAccount() == account) {
 261                    Message message = conversation.findUnsentMessageWithUuid(uuid);
 262                    if (message != null) {
 263                        message.setStatus(Message.STATUS_SEND);
 264                        message.setErrorMessage(null);
 265                        databaseBackend.updateMessage(message, false);
 266                        return true;
 267                    }
 268                }
 269            }
 270            return false;
 271        }
 272    };
 273
 274    private boolean destroyed = false;
 275
 276    private int unreadCount = -1;
 277
 278    //Ui callback listeners
 279    private final Set<OnConversationUpdate> mOnConversationUpdates = Collections.newSetFromMap(new WeakHashMap<OnConversationUpdate, Boolean>());
 280    private final Set<OnShowErrorToast> mOnShowErrorToasts = Collections.newSetFromMap(new WeakHashMap<OnShowErrorToast, Boolean>());
 281    private final Set<OnAccountUpdate> mOnAccountUpdates = Collections.newSetFromMap(new WeakHashMap<OnAccountUpdate, Boolean>());
 282    private final Set<OnCaptchaRequested> mOnCaptchaRequested = Collections.newSetFromMap(new WeakHashMap<OnCaptchaRequested, Boolean>());
 283    private final Set<OnRosterUpdate> mOnRosterUpdates = Collections.newSetFromMap(new WeakHashMap<OnRosterUpdate, Boolean>());
 284    private final Set<OnUpdateBlocklist> mOnUpdateBlocklist = Collections.newSetFromMap(new WeakHashMap<OnUpdateBlocklist, Boolean>());
 285    private final Set<OnMucRosterUpdate> mOnMucRosterUpdate = Collections.newSetFromMap(new WeakHashMap<OnMucRosterUpdate, Boolean>());
 286    private final Set<OnKeyStatusUpdated> mOnKeyStatusUpdated = Collections.newSetFromMap(new WeakHashMap<OnKeyStatusUpdated, Boolean>());
 287
 288    private final Object LISTENER_LOCK = new Object();
 289
 290
 291    private final OnBindListener mOnBindListener = new OnBindListener() {
 292
 293        @Override
 294        public void onBind(final Account account) {
 295            synchronized (mInProgressAvatarFetches) {
 296                for (Iterator<String> iterator = mInProgressAvatarFetches.iterator(); iterator.hasNext(); ) {
 297                    final String KEY = iterator.next();
 298                    if (KEY.startsWith(account.getJid().asBareJid() + "_")) {
 299                        iterator.remove();
 300                    }
 301                }
 302            }
 303            boolean loggedInSuccessfully = account.setOption(Account.OPTION_LOGGED_IN_SUCCESSFULLY, true);
 304            boolean gainedFeature = account.setOption(Account.OPTION_HTTP_UPLOAD_AVAILABLE, account.getXmppConnection().getFeatures().httpUpload(0));
 305            if (loggedInSuccessfully || gainedFeature) {
 306                databaseBackend.updateAccount(account);
 307            }
 308
 309            if (loggedInSuccessfully) {
 310                if (!TextUtils.isEmpty(account.getDisplayName())) {
 311                    Log.d(Config.LOGTAG,account.getJid().asBareJid()+": display name wasn't empty on first log in. publishing");
 312                    publishDisplayName(account);
 313                }
 314            }
 315
 316            account.getRoster().clearPresences();
 317            mJingleConnectionManager.cancelInTransmission();
 318            mQuickConversationsService.considerSyncBackground(false);
 319            fetchRosterFromServer(account);
 320            if (!account.getXmppConnection().getFeatures().bookmarksConversion()) {
 321                fetchBookmarks(account);
 322            }
 323            final boolean flexible = account.getXmppConnection().getFeatures().flexibleOfflineMessageRetrieval();
 324            final boolean catchup = getMessageArchiveService().inCatchup(account);
 325            if (flexible && catchup && account.getXmppConnection().isMamPreferenceAlways()) {
 326                sendIqPacket(account, mIqGenerator.purgeOfflineMessages(), (acc, packet) -> {
 327                    if (packet.getType() == IqPacket.TYPE.RESULT) {
 328                        Log.d(Config.LOGTAG, acc.getJid().asBareJid() + ": successfully purged offline messages");
 329                    }
 330                });
 331            }
 332            sendPresence(account);
 333            if (mPushManagementService.available(account)) {
 334                mPushManagementService.registerPushTokenOnServer(account);
 335            }
 336            connectMultiModeConversations(account);
 337            syncDirtyContacts(account);
 338        }
 339    };
 340    private AtomicLong mLastExpiryRun = new AtomicLong(0);
 341    private SecureRandom mRandom;
 342    private LruCache<Pair<String, String>, ServiceDiscoveryResult> discoCache = new LruCache<>(20);
 343    private OnStatusChanged statusListener = new OnStatusChanged() {
 344
 345        @Override
 346        public void onStatusChanged(final Account account) {
 347            XmppConnection connection = account.getXmppConnection();
 348            updateAccountUi();
 349
 350            if (account.getStatus() == Account.State.ONLINE || account.getStatus().isError()) {
 351                mQuickConversationsService.signalAccountStateChange();
 352            }
 353
 354            if (account.getStatus() == Account.State.ONLINE) {
 355                synchronized (mLowPingTimeoutMode) {
 356                    if (mLowPingTimeoutMode.remove(account.getJid().asBareJid())) {
 357                        Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": leaving low ping timeout mode");
 358                    }
 359                }
 360                if (account.setShowErrorNotification(true)) {
 361                    databaseBackend.updateAccount(account);
 362                }
 363                mMessageArchiveService.executePendingQueries(account);
 364                if (connection != null && connection.getFeatures().csi()) {
 365                    if (checkListeners()) {
 366                        Log.d(Config.LOGTAG, account.getJid().asBareJid() + " sending csi//inactive");
 367                        connection.sendInactive();
 368                    } else {
 369                        Log.d(Config.LOGTAG, account.getJid().asBareJid() + " sending csi//active");
 370                        connection.sendActive();
 371                    }
 372                }
 373                List<Conversation> conversations = getConversations();
 374                for (Conversation conversation : conversations) {
 375                    if (conversation.getAccount() == account && !account.pendingConferenceJoins.contains(conversation)) {
 376                        sendUnsentMessages(conversation);
 377                    }
 378                }
 379                for (Conversation conversation : account.pendingConferenceLeaves) {
 380                    leaveMuc(conversation);
 381                }
 382                account.pendingConferenceLeaves.clear();
 383                for (Conversation conversation : account.pendingConferenceJoins) {
 384                    joinMuc(conversation);
 385                }
 386                account.pendingConferenceJoins.clear();
 387                scheduleWakeUpCall(Config.PING_MAX_INTERVAL, account.getUuid().hashCode());
 388            } else if (account.getStatus() == Account.State.OFFLINE || account.getStatus() == Account.State.DISABLED) {
 389                resetSendingToWaiting(account);
 390                if (account.isEnabled() && isInLowPingTimeoutMode(account)) {
 391                    Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": went into offline state during low ping mode. reconnecting now");
 392                    reconnectAccount(account, true, false);
 393                } else {
 394                    int timeToReconnect = mRandom.nextInt(10) + 2;
 395                    scheduleWakeUpCall(timeToReconnect, account.getUuid().hashCode());
 396                }
 397            } else if (account.getStatus() == Account.State.REGISTRATION_SUCCESSFUL) {
 398                databaseBackend.updateAccount(account);
 399                reconnectAccount(account, true, false);
 400            } else if (account.getStatus() != Account.State.CONNECTING && account.getStatus() != Account.State.NO_INTERNET) {
 401                resetSendingToWaiting(account);
 402                if (connection != null && account.getStatus().isAttemptReconnect()) {
 403                    final int next = connection.getTimeToNextAttempt();
 404                    final boolean lowPingTimeoutMode = isInLowPingTimeoutMode(account);
 405                    if (next <= 0) {
 406                        Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": error connecting account. reconnecting now. lowPingTimeout=" + Boolean.toString(lowPingTimeoutMode));
 407                        reconnectAccount(account, true, false);
 408                    } else {
 409                        final int attempt = connection.getAttempt() + 1;
 410                        Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": error connecting account. try again in " + next + "s for the " + attempt + " time. lowPingTimeout=" + Boolean.toString(lowPingTimeoutMode));
 411                        scheduleWakeUpCall(next, account.getUuid().hashCode());
 412                    }
 413                }
 414            }
 415            getNotificationService().updateErrorNotification();
 416        }
 417    };
 418    private OpenPgpServiceConnection pgpServiceConnection;
 419    private PgpEngine mPgpEngine = null;
 420    private WakeLock wakeLock;
 421    private PowerManager pm;
 422    private LruCache<String, Bitmap> mBitmapCache;
 423    private BroadcastReceiver mInternalEventReceiver = new InternalEventReceiver();
 424    private BroadcastReceiver mInternalScreenEventReceiver = new InternalEventReceiver();
 425
 426    private static String generateFetchKey(Account account, final Avatar avatar) {
 427        return account.getJid().asBareJid() + "_" + avatar.owner + "_" + avatar.sha1sum;
 428    }
 429
 430    private boolean isInLowPingTimeoutMode(Account account) {
 431        synchronized (mLowPingTimeoutMode) {
 432            return mLowPingTimeoutMode.contains(account.getJid().asBareJid());
 433        }
 434    }
 435
 436    public void startForcingForegroundNotification() {
 437        mForceForegroundService.set(true);
 438        toggleForegroundService();
 439    }
 440
 441    public void stopForcingForegroundNotification() {
 442        mForceForegroundService.set(false);
 443        toggleForegroundService();
 444    }
 445
 446    public boolean areMessagesInitialized() {
 447        return this.restoredFromDatabaseLatch.getCount() == 0;
 448    }
 449
 450    public PgpEngine getPgpEngine() {
 451        if (!Config.supportOpenPgp()) {
 452            return null;
 453        } else if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 454            if (this.mPgpEngine == null) {
 455                this.mPgpEngine = new PgpEngine(new OpenPgpApi(
 456                        getApplicationContext(),
 457                        pgpServiceConnection.getService()), this);
 458            }
 459            return mPgpEngine;
 460        } else {
 461            return null;
 462        }
 463
 464    }
 465
 466    public OpenPgpApi getOpenPgpApi() {
 467        if (!Config.supportOpenPgp()) {
 468            return null;
 469        } else if (pgpServiceConnection != null && pgpServiceConnection.isBound()) {
 470            return new OpenPgpApi(this, pgpServiceConnection.getService());
 471        } else {
 472            return null;
 473        }
 474    }
 475
 476    public FileBackend getFileBackend() {
 477        return this.fileBackend;
 478    }
 479
 480    public AvatarService getAvatarService() {
 481        return this.mAvatarService;
 482    }
 483
 484    public void attachLocationToConversation(final Conversation conversation, final Uri uri, final UiCallback<Message> callback) {
 485        int encryption = conversation.getNextEncryption();
 486        if (encryption == Message.ENCRYPTION_PGP) {
 487            encryption = Message.ENCRYPTION_DECRYPTED;
 488        }
 489        Message message = new Message(conversation, uri.toString(), encryption);
 490        Message.configurePrivateMessage(message);
 491        if (encryption == Message.ENCRYPTION_DECRYPTED) {
 492            getPgpEngine().encrypt(message, callback);
 493        } else {
 494            sendMessage(message);
 495            callback.success(message);
 496        }
 497    }
 498
 499    public void attachFileToConversation(final Conversation conversation, final Uri uri, final String type, final UiCallback<Message> callback) {
 500        final Message message;
 501        if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 502            message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 503        } else {
 504            message = new Message(conversation, "", conversation.getNextEncryption());
 505        }
 506        if (!Message.configurePrivateFileMessage(message)) {
 507            message.setCounterpart(conversation.getNextCounterpart());
 508            message.setType(Message.TYPE_FILE);
 509        }
 510        Log.d(Config.LOGTAG,"attachFile: type="+message.getType());
 511        Log.d(Config.LOGTAG,"counterpart="+message.getCounterpart());
 512        final AttachFileToConversationRunnable runnable = new AttachFileToConversationRunnable(this, uri, type, message, callback);
 513        if (runnable.isVideoMessage()) {
 514            mVideoCompressionExecutor.execute(runnable);
 515        } else {
 516            mFileAddingExecutor.execute(runnable);
 517        }
 518    }
 519
 520    public void attachImageToConversation(final Conversation conversation, final Uri uri, final UiCallback<Message> callback) {
 521        final String mimeType = MimeUtils.guessMimeTypeFromUri(this, uri);
 522        final String compressPictures = getCompressPicturesPreference();
 523
 524        if ("never".equals(compressPictures)
 525                || ("auto".equals(compressPictures) && getFileBackend().useImageAsIs(uri))
 526                || (mimeType != null && mimeType.endsWith("/gif"))
 527                || getFileBackend().unusualBounds(uri)) {
 528            Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": not compressing picture. sending as file");
 529            attachFileToConversation(conversation, uri, mimeType, callback);
 530            return;
 531        }
 532        final Message message;
 533        if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 534            message = new Message(conversation, "", Message.ENCRYPTION_DECRYPTED);
 535        } else {
 536            message = new Message(conversation, "", conversation.getNextEncryption());
 537        }
 538        if (!Message.configurePrivateFileMessage(message)) {
 539            message.setCounterpart(conversation.getNextCounterpart());
 540            message.setType(Message.TYPE_IMAGE);
 541        }
 542        Log.d(Config.LOGTAG,"attachImage: type="+message.getType());
 543        mFileAddingExecutor.execute(() -> {
 544            try {
 545                getFileBackend().copyImageToPrivateStorage(message, uri);
 546                if (conversation.getNextEncryption() == Message.ENCRYPTION_PGP) {
 547                    final PgpEngine pgpEngine = getPgpEngine();
 548                    if (pgpEngine != null) {
 549                        pgpEngine.encrypt(message, callback);
 550                    } else if (callback != null) {
 551                        callback.error(R.string.unable_to_connect_to_keychain, null);
 552                    }
 553                } else {
 554                    sendMessage(message);
 555                    callback.success(message);
 556                }
 557            } catch (final FileBackend.FileCopyException e) {
 558                callback.error(e.getResId(), message);
 559            }
 560        });
 561    }
 562
 563    public Conversation find(Bookmark bookmark) {
 564        return find(bookmark.getAccount(), bookmark.getJid());
 565    }
 566
 567    public Conversation find(final Account account, final Jid jid) {
 568        return find(getConversations(), account, jid);
 569    }
 570
 571    public boolean isMuc(final Account account, final Jid jid) {
 572        final Conversation c = find(account, jid);
 573        return c != null && c.getMode() == Conversational.MODE_MULTI;
 574    }
 575
 576    public void search(List<String> term, OnSearchResultsAvailable onSearchResultsAvailable) {
 577        MessageSearchTask.search(this, term, onSearchResultsAvailable);
 578    }
 579
 580    @Override
 581    public int onStartCommand(Intent intent, int flags, int startId) {
 582        final String action = intent == null ? null : intent.getAction();
 583        final boolean needsForegroundService = intent != null && intent.getBooleanExtra(EventReceiver.EXTRA_NEEDS_FOREGROUND_SERVICE, false);
 584        if (needsForegroundService) {
 585            Log.d(Config.LOGTAG,"toggle forced foreground service after receiving event (action="+action+")");
 586            toggleForegroundService(true);
 587        }
 588        String pushedAccountHash = null;
 589        boolean interactive = false;
 590        if (action != null) {
 591            final String uuid = intent.getStringExtra("uuid");
 592            switch (action) {
 593                case ConnectivityManager.CONNECTIVITY_ACTION:
 594                    if (hasInternetConnection()) {
 595                        if (Config.POST_CONNECTIVITY_CHANGE_PING_INTERVAL > 0) {
 596                            schedulePostConnectivityChange();
 597                        }
 598                        if (Config.RESET_ATTEMPT_COUNT_ON_NETWORK_CHANGE) {
 599                            resetAllAttemptCounts(true, false);
 600                        }
 601                    }
 602                    break;
 603                case Intent.ACTION_SHUTDOWN:
 604                    logoutAndSave(true);
 605                    return START_NOT_STICKY;
 606                case ACTION_CLEAR_NOTIFICATION:
 607                    mNotificationExecutor.execute(() -> {
 608                        try {
 609                            final Conversation c = findConversationByUuid(uuid);
 610                            if (c != null) {
 611                                mNotificationService.clear(c);
 612                            } else {
 613                                mNotificationService.clear();
 614                            }
 615                            restoredFromDatabaseLatch.await();
 616
 617                        } catch (InterruptedException e) {
 618                            Log.d(Config.LOGTAG, "unable to process clear notification");
 619                        }
 620                    });
 621                    break;
 622                case ACTION_DISMISS_ERROR_NOTIFICATIONS:
 623                    dismissErrorNotifications();
 624                    break;
 625                case ACTION_TRY_AGAIN:
 626                    resetAllAttemptCounts(false, true);
 627                    interactive = true;
 628                    break;
 629                case ACTION_REPLY_TO_CONVERSATION:
 630                    Bundle remoteInput = RemoteInput.getResultsFromIntent(intent);
 631                    if (remoteInput == null) {
 632                        break;
 633                    }
 634                    final CharSequence body = remoteInput.getCharSequence("text_reply");
 635                    final boolean dismissNotification = intent.getBooleanExtra("dismiss_notification", false);
 636                    if (body == null || body.length() <= 0) {
 637                        break;
 638                    }
 639                    mNotificationExecutor.execute(() -> {
 640                        try {
 641                            restoredFromDatabaseLatch.await();
 642                            final Conversation c = findConversationByUuid(uuid);
 643                            if (c != null) {
 644                                directReply(c, body.toString(), dismissNotification);
 645                            }
 646                        } catch (InterruptedException e) {
 647                            Log.d(Config.LOGTAG, "unable to process direct reply");
 648                        }
 649                    });
 650                    break;
 651                case ACTION_MARK_AS_READ:
 652                    mNotificationExecutor.execute(() -> {
 653                        final Conversation c = findConversationByUuid(uuid);
 654                        if (c == null) {
 655                            Log.d(Config.LOGTAG, "received mark read intent for unknown conversation (" + uuid + ")");
 656                            return;
 657                        }
 658                        try {
 659                            restoredFromDatabaseLatch.await();
 660                            sendReadMarker(c, null);
 661                        } catch (InterruptedException e) {
 662                            Log.d(Config.LOGTAG, "unable to process notification read marker for conversation " + c.getName());
 663                        }
 664
 665                    });
 666                    break;
 667                case ACTION_SNOOZE:
 668                    mNotificationExecutor.execute(() -> {
 669                        final Conversation c = findConversationByUuid(uuid);
 670                        if (c == null) {
 671                            Log.d(Config.LOGTAG, "received snooze intent for unknown conversation (" + uuid + ")");
 672                            return;
 673                        }
 674                        c.setMutedTill(System.currentTimeMillis() + 30 * 60 * 1000);
 675                        mNotificationService.clear(c);
 676                        updateConversation(c);
 677                    });
 678                case AudioManager.RINGER_MODE_CHANGED_ACTION:
 679                case NotificationManager.ACTION_INTERRUPTION_FILTER_CHANGED:
 680                    if (dndOnSilentMode()) {
 681                        refreshAllPresences();
 682                    }
 683                    break;
 684                case Intent.ACTION_SCREEN_ON:
 685                    deactivateGracePeriod();
 686                case Intent.ACTION_SCREEN_OFF:
 687                    if (awayWhenScreenOff()) {
 688                        refreshAllPresences();
 689                    }
 690                    break;
 691                case ACTION_FCM_TOKEN_REFRESH:
 692                    refreshAllFcmTokens();
 693                    break;
 694                case ACTION_IDLE_PING:
 695                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 696                        scheduleNextIdlePing();
 697                    }
 698                    break;
 699                case ACTION_FCM_MESSAGE_RECEIVED:
 700                    pushedAccountHash = intent.getStringExtra("account");
 701                    Log.d(Config.LOGTAG, "push message arrived in service. account=" + pushedAccountHash);
 702                    break;
 703                case Intent.ACTION_SEND:
 704                    Uri uri = intent.getData();
 705                    if (uri != null) {
 706                        Log.d(Config.LOGTAG, "received uri permission for " + uri.toString());
 707                    }
 708                    return START_STICKY;
 709            }
 710        }
 711        synchronized (this) {
 712            WakeLockHelper.acquire(wakeLock);
 713            boolean pingNow = ConnectivityManager.CONNECTIVITY_ACTION.equals(action) || (Config.POST_CONNECTIVITY_CHANGE_PING_INTERVAL > 0 && ACTION_POST_CONNECTIVITY_CHANGE.equals(action));
 714            HashSet<Account> pingCandidates = new HashSet<>();
 715            for (Account account : accounts) {
 716                pingNow |= processAccountState(account,
 717                        interactive,
 718                        "ui".equals(action),
 719                        CryptoHelper.getAccountFingerprint(account, PhoneHelper.getAndroidId(this)).equals(pushedAccountHash),
 720                        pingCandidates);
 721            }
 722            if (pingNow) {
 723                for (Account account : pingCandidates) {
 724                    final boolean lowTimeout = isInLowPingTimeoutMode(account);
 725                    account.getXmppConnection().sendPing();
 726                    Log.d(Config.LOGTAG, account.getJid().asBareJid() + " send ping (action=" + action + ",lowTimeout=" + Boolean.toString(lowTimeout) + ")");
 727                    scheduleWakeUpCall(lowTimeout ? Config.LOW_PING_TIMEOUT : Config.PING_TIMEOUT, account.getUuid().hashCode());
 728                }
 729            }
 730            WakeLockHelper.release(wakeLock);
 731        }
 732        if (SystemClock.elapsedRealtime() - mLastExpiryRun.get() >= Config.EXPIRY_INTERVAL) {
 733            expireOldMessages();
 734        }
 735        return START_STICKY;
 736    }
 737
 738    private boolean processAccountState(Account account, boolean interactive, boolean isUiAction, boolean isAccountPushed, HashSet<Account> pingCandidates) {
 739        boolean pingNow = false;
 740        if (account.getStatus().isAttemptReconnect()) {
 741            if (!hasInternetConnection()) {
 742                account.setStatus(Account.State.NO_INTERNET);
 743                if (statusListener != null) {
 744                    statusListener.onStatusChanged(account);
 745                }
 746            } else {
 747                if (account.getStatus() == Account.State.NO_INTERNET) {
 748                    account.setStatus(Account.State.OFFLINE);
 749                    if (statusListener != null) {
 750                        statusListener.onStatusChanged(account);
 751                    }
 752                }
 753                if (account.getStatus() == Account.State.ONLINE) {
 754                    synchronized (mLowPingTimeoutMode) {
 755                        long lastReceived = account.getXmppConnection().getLastPacketReceived();
 756                        long lastSent = account.getXmppConnection().getLastPingSent();
 757                        long pingInterval = isUiAction ? Config.PING_MIN_INTERVAL * 1000 : Config.PING_MAX_INTERVAL * 1000;
 758                        long msToNextPing = (Math.max(lastReceived, lastSent) + pingInterval) - SystemClock.elapsedRealtime();
 759                        int pingTimeout = mLowPingTimeoutMode.contains(account.getJid().asBareJid()) ? Config.LOW_PING_TIMEOUT * 1000 : Config.PING_TIMEOUT * 1000;
 760                        long pingTimeoutIn = (lastSent + pingTimeout) - SystemClock.elapsedRealtime();
 761                        if (lastSent > lastReceived) {
 762                            if (pingTimeoutIn < 0) {
 763                                Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": ping timeout");
 764                                this.reconnectAccount(account, true, interactive);
 765                            } else {
 766                                int secs = (int) (pingTimeoutIn / 1000);
 767                                this.scheduleWakeUpCall(secs, account.getUuid().hashCode());
 768                            }
 769                        } else {
 770                            pingCandidates.add(account);
 771                            if (isAccountPushed) {
 772                                pingNow = true;
 773                                if (mLowPingTimeoutMode.add(account.getJid().asBareJid())) {
 774                                    Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": entering low ping timeout mode");
 775                                }
 776                            } else if (msToNextPing <= 0) {
 777                                pingNow = true;
 778                            } else {
 779                                this.scheduleWakeUpCall((int) (msToNextPing / 1000), account.getUuid().hashCode());
 780                                if (mLowPingTimeoutMode.remove(account.getJid().asBareJid())) {
 781                                    Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": leaving low ping timeout mode");
 782                                }
 783                            }
 784                        }
 785                    }
 786                } else if (account.getStatus() == Account.State.OFFLINE) {
 787                    reconnectAccount(account, true, interactive);
 788                } else if (account.getStatus() == Account.State.CONNECTING) {
 789                    long secondsSinceLastConnect = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastConnect()) / 1000;
 790                    long secondsSinceLastDisco = (SystemClock.elapsedRealtime() - account.getXmppConnection().getLastDiscoStarted()) / 1000;
 791                    long discoTimeout = Config.CONNECT_DISCO_TIMEOUT - secondsSinceLastDisco;
 792                    long timeout = Config.CONNECT_TIMEOUT - secondsSinceLastConnect;
 793                    if (timeout < 0) {
 794                        Log.d(Config.LOGTAG, account.getJid() + ": time out during connect reconnecting (secondsSinceLast=" + secondsSinceLastConnect + ")");
 795                        account.getXmppConnection().resetAttemptCount(false);
 796                        reconnectAccount(account, true, interactive);
 797                    } else if (discoTimeout < 0) {
 798                        account.getXmppConnection().sendDiscoTimeout();
 799                        scheduleWakeUpCall((int) Math.min(timeout, discoTimeout), account.getUuid().hashCode());
 800                    } else {
 801                        scheduleWakeUpCall((int) Math.min(timeout, discoTimeout), account.getUuid().hashCode());
 802                    }
 803                } else {
 804                    if (account.getXmppConnection().getTimeToNextAttempt() <= 0) {
 805                        reconnectAccount(account, true, interactive);
 806                    }
 807                }
 808            }
 809        }
 810        return pingNow;
 811    }
 812
 813    public void reinitializeMuclumbusService() {
 814        mChannelDiscoveryService.initializeMuclumbusService();
 815    }
 816
 817    public void discoverChannels(String query, ChannelDiscoveryService.OnChannelSearchResultsFound onChannelSearchResultsFound) {
 818        mChannelDiscoveryService.discover(query, onChannelSearchResultsFound);
 819    }
 820
 821    public boolean isDataSaverDisabled() {
 822        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 823            ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
 824            return !connectivityManager.isActiveNetworkMetered()
 825                    || connectivityManager.getRestrictBackgroundStatus() == ConnectivityManager.RESTRICT_BACKGROUND_STATUS_DISABLED;
 826        } else {
 827            return true;
 828        }
 829    }
 830
 831    private void directReply(Conversation conversation, String body, final boolean dismissAfterReply) {
 832        Message message = new Message(conversation, body, conversation.getNextEncryption());
 833        message.markUnread();
 834        if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 835            getPgpEngine().encrypt(message, new UiCallback<Message>() {
 836                @Override
 837                public void success(Message message) {
 838                    if (dismissAfterReply) {
 839                        markRead((Conversation) message.getConversation(), true);
 840                    } else {
 841                        mNotificationService.pushFromDirectReply(message);
 842                    }
 843                }
 844
 845                @Override
 846                public void error(int errorCode, Message object) {
 847
 848                }
 849
 850                @Override
 851                public void userInputRequried(PendingIntent pi, Message object) {
 852
 853                }
 854            });
 855        } else {
 856            sendMessage(message);
 857            if (dismissAfterReply) {
 858                markRead(conversation, true);
 859            } else {
 860                mNotificationService.pushFromDirectReply(message);
 861            }
 862        }
 863    }
 864
 865    private boolean dndOnSilentMode() {
 866        return getBooleanPreference(SettingsActivity.DND_ON_SILENT_MODE, R.bool.dnd_on_silent_mode);
 867    }
 868
 869    private boolean manuallyChangePresence() {
 870        return getBooleanPreference(SettingsActivity.MANUALLY_CHANGE_PRESENCE, R.bool.manually_change_presence);
 871    }
 872
 873    private boolean treatVibrateAsSilent() {
 874        return getBooleanPreference(SettingsActivity.TREAT_VIBRATE_AS_SILENT, R.bool.treat_vibrate_as_silent);
 875    }
 876
 877    private boolean awayWhenScreenOff() {
 878        return getBooleanPreference(SettingsActivity.AWAY_WHEN_SCREEN_IS_OFF, R.bool.away_when_screen_off);
 879    }
 880
 881    private String getCompressPicturesPreference() {
 882        return getPreferences().getString("picture_compression", getResources().getString(R.string.picture_compression));
 883    }
 884
 885    private Presence.Status getTargetPresence() {
 886        if (dndOnSilentMode() && isPhoneSilenced()) {
 887            return Presence.Status.DND;
 888        } else if (awayWhenScreenOff() && !isInteractive()) {
 889            return Presence.Status.AWAY;
 890        } else {
 891            return Presence.Status.ONLINE;
 892        }
 893    }
 894
 895    @SuppressLint("NewApi")
 896    @SuppressWarnings("deprecation")
 897    public boolean isInteractive() {
 898        try {
 899            final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
 900
 901            final boolean isScreenOn;
 902            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
 903                isScreenOn = pm.isScreenOn();
 904            } else {
 905                isScreenOn = pm.isInteractive();
 906            }
 907            return isScreenOn;
 908        } catch (RuntimeException e) {
 909            return false;
 910        }
 911    }
 912
 913    private boolean isPhoneSilenced() {
 914        final boolean notificationDnd;
 915        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 916            final NotificationManager notificationManager = getSystemService(NotificationManager.class);
 917            final int filter = notificationManager == null ? NotificationManager.INTERRUPTION_FILTER_UNKNOWN : notificationManager.getCurrentInterruptionFilter();
 918            notificationDnd = filter >= NotificationManager.INTERRUPTION_FILTER_PRIORITY;
 919        } else {
 920            notificationDnd = false;
 921        }
 922        final AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
 923        final int ringerMode = audioManager == null ? AudioManager.RINGER_MODE_NORMAL : audioManager.getRingerMode();
 924        try {
 925            if (treatVibrateAsSilent()) {
 926                return notificationDnd || ringerMode != AudioManager.RINGER_MODE_NORMAL;
 927            } else {
 928                return notificationDnd || ringerMode == AudioManager.RINGER_MODE_SILENT;
 929            }
 930        } catch (Throwable throwable) {
 931            Log.d(Config.LOGTAG, "platform bug in isPhoneSilenced (" + throwable.getMessage() + ")");
 932            return notificationDnd;
 933        }
 934    }
 935
 936    private void resetAllAttemptCounts(boolean reallyAll, boolean retryImmediately) {
 937        Log.d(Config.LOGTAG, "resetting all attempt counts");
 938        for (Account account : accounts) {
 939            if (account.hasErrorStatus() || reallyAll) {
 940                final XmppConnection connection = account.getXmppConnection();
 941                if (connection != null) {
 942                    connection.resetAttemptCount(retryImmediately);
 943                }
 944            }
 945            if (account.setShowErrorNotification(true)) {
 946                mDatabaseWriterExecutor.execute(() -> databaseBackend.updateAccount(account));
 947            }
 948        }
 949        mNotificationService.updateErrorNotification();
 950    }
 951
 952    private void dismissErrorNotifications() {
 953        for (final Account account : this.accounts) {
 954            if (account.hasErrorStatus()) {
 955                Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": dismissing error notification");
 956                if (account.setShowErrorNotification(false)) {
 957                    mDatabaseWriterExecutor.execute(() -> databaseBackend.updateAccount(account));
 958                }
 959            }
 960        }
 961    }
 962
 963    private void expireOldMessages() {
 964        expireOldMessages(false);
 965    }
 966
 967    public void expireOldMessages(final boolean resetHasMessagesLeftOnServer) {
 968        mLastExpiryRun.set(SystemClock.elapsedRealtime());
 969        mDatabaseWriterExecutor.execute(() -> {
 970            long timestamp = getAutomaticMessageDeletionDate();
 971            if (timestamp > 0) {
 972                databaseBackend.expireOldMessages(timestamp);
 973                synchronized (XmppConnectionService.this.conversations) {
 974                    for (Conversation conversation : XmppConnectionService.this.conversations) {
 975                        conversation.expireOldMessages(timestamp);
 976                        if (resetHasMessagesLeftOnServer) {
 977                            conversation.messagesLoaded.set(true);
 978                            conversation.setHasMessagesLeftOnServer(true);
 979                        }
 980                    }
 981                }
 982                updateConversationUi();
 983            }
 984        });
 985    }
 986
 987    public boolean hasInternetConnection() {
 988        final ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
 989        try {
 990            final NetworkInfo activeNetwork = cm == null ? null : cm.getActiveNetworkInfo();
 991            return activeNetwork != null && (activeNetwork.isConnected() || activeNetwork.getType() == ConnectivityManager.TYPE_ETHERNET);
 992        } catch (RuntimeException e) {
 993            Log.d(Config.LOGTAG, "unable to check for internet connection", e);
 994            return true; //if internet connection can not be checked it is probably best to just try
 995        }
 996    }
 997
 998    @SuppressLint("TrulyRandom")
 999    @Override
1000    public void onCreate() {
1001        if (Compatibility.runsTwentySix()) {
1002            mNotificationService.initializeChannels();
1003        }
1004        mChannelDiscoveryService.initializeMuclumbusService();
1005        mForceDuringOnCreate.set(Compatibility.runsAndTargetsTwentySix(this));
1006        toggleForegroundService();
1007        this.destroyed = false;
1008        OmemoSetting.load(this);
1009        ExceptionHelper.init(getApplicationContext());
1010        try {
1011            Security.insertProviderAt(Conscrypt.newProvider(), 1);
1012        } catch (Throwable throwable) {
1013            Log.e(Config.LOGTAG,"unable to initialize security provider", throwable);
1014        }
1015        Resolver.init(this);
1016        this.mRandom = new SecureRandom();
1017        updateMemorizingTrustmanager();
1018        final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
1019        final int cacheSize = maxMemory / 8;
1020        this.mBitmapCache = new LruCache<String, Bitmap>(cacheSize) {
1021            @Override
1022            protected int sizeOf(final String key, final Bitmap bitmap) {
1023                return bitmap.getByteCount() / 1024;
1024            }
1025        };
1026        if (mLastActivity == 0) {
1027            mLastActivity = getPreferences().getLong(SETTING_LAST_ACTIVITY_TS, System.currentTimeMillis());
1028        }
1029
1030        Log.d(Config.LOGTAG, "initializing database...");
1031        this.databaseBackend = DatabaseBackend.getInstance(getApplicationContext());
1032        Log.d(Config.LOGTAG, "restoring accounts...");
1033        this.accounts = databaseBackend.getAccounts();
1034        final SharedPreferences.Editor editor = getPreferences().edit();
1035        if (this.accounts.size() == 0 && Arrays.asList("Sony", "Sony Ericsson").contains(Build.MANUFACTURER)) {
1036            editor.putBoolean(SettingsActivity.KEEP_FOREGROUND_SERVICE, true);
1037            Log.d(Config.LOGTAG, Build.MANUFACTURER + " is on blacklist. enabling foreground service");
1038        }
1039        final boolean hasEnabledAccounts = hasEnabledAccounts();
1040        editor.putBoolean(EventReceiver.SETTING_ENABLED_ACCOUNTS, hasEnabledAccounts).apply();
1041        editor.apply();
1042        toggleSetProfilePictureActivity(hasEnabledAccounts);
1043
1044        restoreFromDatabase();
1045
1046        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M || ContextCompat.checkSelfPermission(this, Manifest.permission.READ_CONTACTS) == PackageManager.PERMISSION_GRANTED) {
1047            startContactObserver();
1048        }
1049        if (Compatibility.hasStoragePermission(this)) {
1050            Log.d(Config.LOGTAG, "starting file observer");
1051            mFileAddingExecutor.execute(this.fileObserver::startWatching);
1052            mFileAddingExecutor.execute(this::checkForDeletedFiles);
1053        }
1054        if (Config.supportOpenPgp()) {
1055            this.pgpServiceConnection = new OpenPgpServiceConnection(this, "org.sufficientlysecure.keychain", new OpenPgpServiceConnection.OnBound() {
1056                @Override
1057                public void onBound(IOpenPgpService2 service) {
1058                    for (Account account : accounts) {
1059                        final PgpDecryptionService pgp = account.getPgpDecryptionService();
1060                        if (pgp != null) {
1061                            pgp.continueDecryption(true);
1062                        }
1063                    }
1064                }
1065
1066                @Override
1067                public void onError(Exception e) {
1068                }
1069            });
1070            this.pgpServiceConnection.bindToService();
1071        }
1072
1073        this.pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
1074        this.wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "Conversations:Service");
1075
1076        toggleForegroundService();
1077        updateUnreadCountBadge();
1078        toggleScreenEventReceiver();
1079        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1080            scheduleNextIdlePing();
1081            IntentFilter intentFilter = new IntentFilter();
1082            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
1083                intentFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
1084            }
1085            intentFilter.addAction(NotificationManager.ACTION_INTERRUPTION_FILTER_CHANGED);
1086            registerReceiver(this.mInternalEventReceiver, intentFilter);
1087        }
1088        mForceDuringOnCreate.set(false);
1089        toggleForegroundService();
1090    }
1091
1092    private void checkForDeletedFiles() {
1093        if (destroyed) {
1094            Log.d(Config.LOGTAG, "Do not check for deleted files because service has been destroyed");
1095            return;
1096        }
1097        final long start = SystemClock.elapsedRealtime();
1098        final List<DatabaseBackend.FilePathInfo> relativeFilePaths = databaseBackend.getFilePathInfo();
1099        final List<DatabaseBackend.FilePathInfo> changed = new ArrayList<>();
1100        for(final DatabaseBackend.FilePathInfo filePath : relativeFilePaths) {
1101            if (destroyed) {
1102                Log.d(Config.LOGTAG, "Stop checking for deleted files because service has been destroyed");
1103                return;
1104            }
1105            final File file = fileBackend.getFileForPath(filePath.path);
1106            if (filePath.setDeleted(!file.exists())) {
1107                changed.add(filePath);
1108            }
1109        }
1110        final long duration = SystemClock.elapsedRealtime() - start;
1111        Log.d(Config.LOGTAG,"found "+changed.size()+" changed files on start up. total="+relativeFilePaths.size()+". ("+duration+"ms)");
1112        if (changed.size() > 0) {
1113            databaseBackend.markFilesAsChanged(changed);
1114            markChangedFiles(changed);
1115        }
1116    }
1117
1118    public void startContactObserver() {
1119        getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true, new ContentObserver(null) {
1120            @Override
1121            public void onChange(boolean selfChange) {
1122                super.onChange(selfChange);
1123                if (restoredFromDatabaseLatch.getCount() == 0) {
1124                    loadPhoneContacts();
1125                }
1126            }
1127        });
1128    }
1129
1130    @Override
1131    public void onTrimMemory(int level) {
1132        super.onTrimMemory(level);
1133        if (level >= TRIM_MEMORY_COMPLETE) {
1134            Log.d(Config.LOGTAG, "clear cache due to low memory");
1135            getBitmapCache().evictAll();
1136        }
1137    }
1138
1139    @Override
1140    public void onDestroy() {
1141        try {
1142            unregisterReceiver(this.mInternalEventReceiver);
1143        } catch (IllegalArgumentException e) {
1144            //ignored
1145        }
1146        destroyed = false;
1147        fileObserver.stopWatching();
1148        super.onDestroy();
1149    }
1150
1151    public void restartFileObserver() {
1152        Log.d(Config.LOGTAG, "restarting file observer");
1153        mFileAddingExecutor.execute(this.fileObserver::restartWatching);
1154        mFileAddingExecutor.execute(this::checkForDeletedFiles);
1155    }
1156
1157    public void toggleScreenEventReceiver() {
1158        if (awayWhenScreenOff() && !manuallyChangePresence()) {
1159            final IntentFilter filter = new IntentFilter();
1160            filter.addAction(Intent.ACTION_SCREEN_ON);
1161            filter.addAction(Intent.ACTION_SCREEN_OFF);
1162            registerReceiver(this.mInternalScreenEventReceiver, filter);
1163        } else {
1164            try {
1165                unregisterReceiver(this.mInternalScreenEventReceiver);
1166            } catch (IllegalArgumentException e) {
1167                //ignored
1168            }
1169        }
1170    }
1171
1172    public void toggleForegroundService() {
1173        toggleForegroundService(false);
1174    }
1175
1176    private void toggleForegroundService(boolean force) {
1177        final boolean status;
1178        if (force || mForceDuringOnCreate.get() || mForceForegroundService.get() || (Compatibility.keepForegroundService(this) && hasEnabledAccounts())) {
1179            final Notification notification = this.mNotificationService.createForegroundNotification();
1180            startForeground(NotificationService.FOREGROUND_NOTIFICATION_ID, notification);
1181            if (!mForceForegroundService.get()) {
1182                mNotificationService.notify(NotificationService.FOREGROUND_NOTIFICATION_ID, notification);
1183            }
1184            status = true;
1185        } else {
1186            stopForeground(true);
1187            status = false;
1188        }
1189        if (!mForceForegroundService.get()) {
1190            mNotificationService.dismissForcedForegroundNotification(); //if the channel was changed the previous call might fail
1191        }
1192        Log.d(Config.LOGTAG,"ForegroundService: "+(status?"on":"off"));
1193    }
1194
1195    public boolean foregroundNotificationNeedsUpdatingWhenErrorStateChanges() {
1196        return !mForceForegroundService.get() && Compatibility.keepForegroundService(this) && hasEnabledAccounts();
1197    }
1198
1199    @Override
1200    public void onTaskRemoved(final Intent rootIntent) {
1201        super.onTaskRemoved(rootIntent);
1202        if ((Compatibility.keepForegroundService(this) && hasEnabledAccounts()) || mForceForegroundService.get()) {
1203            Log.d(Config.LOGTAG, "ignoring onTaskRemoved because foreground service is activated");
1204        } else {
1205            this.logoutAndSave(false);
1206        }
1207    }
1208
1209    private void logoutAndSave(boolean stop) {
1210        int activeAccounts = 0;
1211        for (final Account account : accounts) {
1212            if (account.getStatus() != Account.State.DISABLED) {
1213                databaseBackend.writeRoster(account.getRoster());
1214                activeAccounts++;
1215            }
1216            if (account.getXmppConnection() != null) {
1217                new Thread(() -> disconnect(account, false)).start();
1218            }
1219        }
1220        if (stop || activeAccounts == 0) {
1221            Log.d(Config.LOGTAG, "good bye");
1222            stopSelf();
1223        }
1224    }
1225
1226    private void schedulePostConnectivityChange() {
1227        final AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
1228        if (alarmManager == null) {
1229            return;
1230        }
1231        final long triggerAtMillis = SystemClock.elapsedRealtime() + (Config.POST_CONNECTIVITY_CHANGE_PING_INTERVAL * 1000);
1232        final Intent intent = new Intent(this, EventReceiver.class);
1233        intent.setAction(ACTION_POST_CONNECTIVITY_CHANGE);
1234        try {
1235            final PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 1, intent, 0);
1236            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
1237                alarmManager.setAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME_WAKEUP, triggerAtMillis, pendingIntent);
1238            } else {
1239                alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, triggerAtMillis, pendingIntent);
1240            }
1241        } catch (RuntimeException e) {
1242            Log.e(Config.LOGTAG, "unable to schedule alarm for post connectivity change", e);
1243        }
1244    }
1245
1246    public void scheduleWakeUpCall(int seconds, int requestCode) {
1247        final long timeToWake = SystemClock.elapsedRealtime() + (seconds < 0 ? 1 : seconds + 1) * 1000;
1248        final AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
1249        if (alarmManager == null) {
1250            return;
1251        }
1252        final Intent intent = new Intent(this, EventReceiver.class);
1253        intent.setAction("ping");
1254        try {
1255            PendingIntent pendingIntent = PendingIntent.getBroadcast(this, requestCode, intent, 0);
1256            alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, pendingIntent);
1257        } catch (RuntimeException e) {
1258            Log.e(Config.LOGTAG, "unable to schedule alarm for ping", e);
1259        }
1260    }
1261
1262    @TargetApi(Build.VERSION_CODES.M)
1263    private void scheduleNextIdlePing() {
1264        final long timeToWake = SystemClock.elapsedRealtime() + (Config.IDLE_PING_INTERVAL * 1000);
1265        final AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
1266        if (alarmManager == null) {
1267            return;
1268        }
1269        final Intent intent = new Intent(this, EventReceiver.class);
1270        intent.setAction(ACTION_IDLE_PING);
1271        try {
1272            PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
1273            alarmManager.setAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME_WAKEUP, timeToWake, pendingIntent);
1274        } catch (RuntimeException e) {
1275            Log.d(Config.LOGTAG, "unable to schedule alarm for idle ping", e);
1276        }
1277    }
1278
1279    public XmppConnection createConnection(final Account account) {
1280        final XmppConnection connection = new XmppConnection(account, this);
1281        connection.setOnMessagePacketReceivedListener(this.mMessageParser);
1282        connection.setOnStatusChangedListener(this.statusListener);
1283        connection.setOnPresencePacketReceivedListener(this.mPresenceParser);
1284        connection.setOnUnregisteredIqPacketReceivedListener(this.mIqParser);
1285        connection.setOnJinglePacketReceivedListener(this.jingleListener);
1286        connection.setOnBindListener(this.mOnBindListener);
1287        connection.setOnMessageAcknowledgeListener(this.mOnMessageAcknowledgedListener);
1288        connection.addOnAdvancedStreamFeaturesAvailableListener(this.mMessageArchiveService);
1289        connection.addOnAdvancedStreamFeaturesAvailableListener(this.mAvatarService);
1290        AxolotlService axolotlService = account.getAxolotlService();
1291        if (axolotlService != null) {
1292            connection.addOnAdvancedStreamFeaturesAvailableListener(axolotlService);
1293        }
1294        return connection;
1295    }
1296
1297    public void sendChatState(Conversation conversation) {
1298        if (sendChatStates()) {
1299            MessagePacket packet = mMessageGenerator.generateChatState(conversation);
1300            sendMessagePacket(conversation.getAccount(), packet);
1301        }
1302    }
1303
1304    private void sendFileMessage(final Message message, final boolean delay) {
1305        Log.d(Config.LOGTAG, "send file message");
1306        final Account account = message.getConversation().getAccount();
1307        if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1308                || message.getConversation().getMode() == Conversation.MODE_MULTI) {
1309            mHttpConnectionManager.createNewUploadConnection(message, delay);
1310        } else {
1311            mJingleConnectionManager.createNewConnection(message);
1312        }
1313    }
1314
1315    public void sendMessage(final Message message) {
1316        sendMessage(message, false, false);
1317    }
1318
1319    private void sendMessage(final Message message, final boolean resend, final boolean delay) {
1320        final Account account = message.getConversation().getAccount();
1321        if (account.setShowErrorNotification(true)) {
1322            databaseBackend.updateAccount(account);
1323            mNotificationService.updateErrorNotification();
1324        }
1325        final Conversation conversation = (Conversation) message.getConversation();
1326        account.deactivateGracePeriod();
1327
1328
1329        if (QuickConversationsService.isQuicksy() && conversation.getMode() == Conversation.MODE_SINGLE) {
1330            final Contact contact = conversation.getContact();
1331            if (!contact.showInRoster() && contact.getOption(Contact.Options.SYNCED_VIA_OTHER)) {
1332                Log.d(Config.LOGTAG,account.getJid().asBareJid()+": adding "+contact.getJid()+" on sending message");
1333                createContact(contact, true);
1334            }
1335        }
1336
1337        MessagePacket packet = null;
1338        final boolean addToConversation = (conversation.getMode() != Conversation.MODE_MULTI
1339                || !Patches.BAD_MUC_REFLECTION.contains(account.getServerIdentity()))
1340                && !message.edited();
1341        boolean saveInDb = addToConversation;
1342        message.setStatus(Message.STATUS_WAITING);
1343
1344        if (message.getEncryption() != Message.ENCRYPTION_NONE && conversation.getMode() == Conversation.MODE_MULTI && conversation.isPrivateAndNonAnonymous()) {
1345            if (conversation.setAttribute(Conversation.ATTRIBUTE_FORMERLY_PRIVATE_NON_ANONYMOUS, true)) {
1346                databaseBackend.updateConversation(conversation);
1347            }
1348        }
1349
1350        if (account.isOnlineAndConnected()) {
1351            switch (message.getEncryption()) {
1352                case Message.ENCRYPTION_NONE:
1353                    if (message.needsUploading()) {
1354                        if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1355                                || conversation.getMode() == Conversation.MODE_MULTI
1356                                || message.fixCounterpart()) {
1357                            this.sendFileMessage(message, delay);
1358                        } else {
1359                            break;
1360                        }
1361                    } else {
1362                        packet = mMessageGenerator.generateChat(message);
1363                    }
1364                    break;
1365                case Message.ENCRYPTION_PGP:
1366                case Message.ENCRYPTION_DECRYPTED:
1367                    if (message.needsUploading()) {
1368                        if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1369                                || conversation.getMode() == Conversation.MODE_MULTI
1370                                || message.fixCounterpart()) {
1371                            this.sendFileMessage(message, delay);
1372                        } else {
1373                            break;
1374                        }
1375                    } else {
1376                        packet = mMessageGenerator.generatePgpChat(message);
1377                    }
1378                    break;
1379                case Message.ENCRYPTION_AXOLOTL:
1380                    message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
1381                    if (message.needsUploading()) {
1382                        if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize())
1383                                || conversation.getMode() == Conversation.MODE_MULTI
1384                                || message.fixCounterpart()) {
1385                            this.sendFileMessage(message, delay);
1386                        } else {
1387                            break;
1388                        }
1389                    } else {
1390                        XmppAxolotlMessage axolotlMessage = account.getAxolotlService().fetchAxolotlMessageFromCache(message);
1391                        if (axolotlMessage == null) {
1392                            account.getAxolotlService().preparePayloadMessage(message, delay);
1393                        } else {
1394                            packet = mMessageGenerator.generateAxolotlChat(message, axolotlMessage);
1395                        }
1396                    }
1397                    break;
1398
1399            }
1400            if (packet != null) {
1401                if (account.getXmppConnection().getFeatures().sm()
1402                        || (conversation.getMode() == Conversation.MODE_MULTI && message.getCounterpart().isBareJid())) {
1403                    message.setStatus(Message.STATUS_UNSEND);
1404                } else {
1405                    message.setStatus(Message.STATUS_SEND);
1406                }
1407            }
1408        } else {
1409            switch (message.getEncryption()) {
1410                case Message.ENCRYPTION_DECRYPTED:
1411                    if (!message.needsUploading()) {
1412                        String pgpBody = message.getEncryptedBody();
1413                        String decryptedBody = message.getBody();
1414                        message.setBody(pgpBody); //TODO might throw NPE
1415                        message.setEncryption(Message.ENCRYPTION_PGP);
1416                        if (message.edited()) {
1417                            message.setBody(decryptedBody);
1418                            message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1419                            if (!databaseBackend.updateMessage(message, message.getEditedId())) {
1420                                Log.e(Config.LOGTAG,"error updated message in DB after edit");
1421                            }
1422                            updateConversationUi();
1423                            return;
1424                        } else {
1425                            databaseBackend.createMessage(message);
1426                            saveInDb = false;
1427                            message.setBody(decryptedBody);
1428                            message.setEncryption(Message.ENCRYPTION_DECRYPTED);
1429                        }
1430                    }
1431                    break;
1432                case Message.ENCRYPTION_AXOLOTL:
1433                    message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
1434                    break;
1435            }
1436        }
1437
1438
1439        boolean mucMessage = conversation.getMode() == Conversation.MODE_MULTI && !message.isPrivateMessage();
1440        if (mucMessage) {
1441            message.setCounterpart(conversation.getMucOptions().getSelf().getFullJid());
1442        }
1443
1444        if (resend) {
1445            if (packet != null && addToConversation) {
1446                if (account.getXmppConnection().getFeatures().sm() || mucMessage) {
1447                    markMessage(message, Message.STATUS_UNSEND);
1448                } else {
1449                    markMessage(message, Message.STATUS_SEND);
1450                }
1451            }
1452        } else {
1453            if (addToConversation) {
1454                conversation.add(message);
1455            }
1456            if (saveInDb) {
1457                databaseBackend.createMessage(message);
1458            } else if (message.edited()) {
1459                if (!databaseBackend.updateMessage(message, message.getEditedId())) {
1460                    Log.e(Config.LOGTAG,"error updated message in DB after edit");
1461                }
1462            }
1463            updateConversationUi();
1464        }
1465        if (packet != null) {
1466            if (delay) {
1467                mMessageGenerator.addDelay(packet, message.getTimeSent());
1468            }
1469            if (conversation.setOutgoingChatState(Config.DEFAULT_CHATSTATE)) {
1470                if (this.sendChatStates()) {
1471                    packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
1472                }
1473            }
1474            Log.d(Config.LOGTAG,packet.toString());
1475            sendMessagePacket(account, packet);
1476        }
1477    }
1478
1479    private void sendUnsentMessages(final Conversation conversation) {
1480        conversation.findWaitingMessages(message -> resendMessage(message, true));
1481    }
1482
1483    public void resendMessage(final Message message, final boolean delay) {
1484        sendMessage(message, true, delay);
1485    }
1486
1487    public void fetchRosterFromServer(final Account account) {
1488        final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1489        if (!"".equals(account.getRosterVersion())) {
1490            Log.d(Config.LOGTAG, account.getJid().asBareJid()
1491                    + ": fetching roster version " + account.getRosterVersion());
1492        } else {
1493            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": fetching roster");
1494        }
1495        iqPacket.query(Namespace.ROSTER).setAttribute("ver", account.getRosterVersion());
1496        sendIqPacket(account, iqPacket, mIqParser);
1497    }
1498
1499    public void fetchBookmarks(final Account account) {
1500        final IqPacket iqPacket = new IqPacket(IqPacket.TYPE.GET);
1501        final Element query = iqPacket.query("jabber:iq:private");
1502        query.addChild("storage", Namespace.BOOKMARKS);
1503        final OnIqPacketReceived callback = (a, response) -> {
1504            if (response.getType() == IqPacket.TYPE.RESULT) {
1505                final Element query1 = response.query();
1506                final Element storage = query1.findChild("storage", "storage:bookmarks");
1507                processBookmarks(a, storage, false);
1508            } else {
1509                Log.d(Config.LOGTAG, a.getJid().asBareJid() + ": could not fetch bookmarks");
1510            }
1511        };
1512        sendIqPacket(account, iqPacket, callback);
1513    }
1514
1515    public void processBookmarks(Account account, Element storage, final boolean pep) {
1516        final Set<Jid> previousBookmarks = account.getBookmarkedJids();
1517        final HashMap<Jid, Bookmark> bookmarks = new HashMap<>();
1518        final boolean synchronizeWithBookmarks = synchronizeWithBookmarks();
1519        if (storage != null) {
1520            for (final Element item : storage.getChildren()) {
1521                if (item.getName().equals("conference")) {
1522                    final Bookmark bookmark = Bookmark.parse(item, account);
1523                    Bookmark old = bookmarks.put(bookmark.getJid(), bookmark);
1524                    if (old != null && old.getBookmarkName() != null && bookmark.getBookmarkName() == null) {
1525                        bookmark.setBookmarkName(old.getBookmarkName());
1526                    }
1527                    if (bookmark.getJid() == null) {
1528                        continue;
1529                    }
1530                    previousBookmarks.remove(bookmark.getJid().asBareJid());
1531                    Conversation conversation = find(bookmark);
1532                    if (conversation != null) {
1533                        if (conversation.getMode() != Conversation.MODE_MULTI) {
1534                            continue;
1535                        }
1536                        bookmark.setConversation(conversation);
1537                        if (pep && synchronizeWithBookmarks && !bookmark.autojoin()) {
1538                            Log.d(Config.LOGTAG,account.getJid().asBareJid()+": archiving conference ("+conversation.getJid()+") after receiving pep");
1539                            archiveConversation(conversation, false);
1540                        }
1541                    } else if (synchronizeWithBookmarks && bookmark.autojoin()) {
1542                        conversation = findOrCreateConversation(account, bookmark.getFullJid(), true, true, false);
1543                        bookmark.setConversation(conversation);
1544                    }
1545                }
1546            }
1547            if (pep && synchronizeWithBookmarks) {
1548                Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": " + previousBookmarks.size() + " bookmarks have been removed");
1549                for (Jid jid : previousBookmarks) {
1550                    final Conversation conversation = find(account, jid);
1551                    if (conversation != null && conversation.getMucOptions().getError() == MucOptions.Error.DESTROYED) {
1552                        Log.d(Config.LOGTAG,account.getJid().asBareJid()+": archiving destroyed conference ("+conversation.getJid()+") after receiving pep");
1553                        archiveConversation(conversation, false);
1554                    }
1555                }
1556            }
1557        }
1558        account.setBookmarks(new CopyOnWriteArrayList<>(bookmarks.values()));
1559    }
1560
1561    public void pushBookmarks(Account account) {
1562        if (account.getXmppConnection().getFeatures().bookmarksConversion()) {
1563            pushBookmarksPep(account);
1564        } else {
1565            pushBookmarksPrivateXml(account);
1566        }
1567    }
1568
1569    private void pushBookmarksPrivateXml(Account account) {
1570        Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": pushing bookmarks via private xml");
1571        IqPacket iqPacket = new IqPacket(IqPacket.TYPE.SET);
1572        Element query = iqPacket.query("jabber:iq:private");
1573        Element storage = query.addChild("storage", "storage:bookmarks");
1574        for (Bookmark bookmark : account.getBookmarks()) {
1575            storage.addChild(bookmark);
1576        }
1577        sendIqPacket(account, iqPacket, mDefaultIqHandler);
1578    }
1579
1580    private void pushBookmarksPep(Account account) {
1581        Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": pushing bookmarks via pep");
1582        Element storage = new Element("storage", "storage:bookmarks");
1583        for (Bookmark bookmark : account.getBookmarks()) {
1584            storage.addChild(bookmark);
1585        }
1586        pushNodeAndEnforcePublishOptions(account,Namespace.BOOKMARKS,storage, PublishOptions.persistentWhitelistAccess());
1587
1588    }
1589
1590
1591    private void pushNodeAndEnforcePublishOptions(final Account account, final String node, final Element element, final Bundle options) {
1592        pushNodeAndEnforcePublishOptions(account, node, element, options, true);
1593
1594    }
1595
1596	private void pushNodeAndEnforcePublishOptions(final Account account, final String node, final Element element, final Bundle options, final boolean retry) {
1597        final IqPacket packet = mIqGenerator.publishElement(node, element, options);
1598        sendIqPacket(account, packet, (a, response) -> {
1599            if (response.getType() == IqPacket.TYPE.RESULT) {
1600                return;
1601            }
1602            if (retry && PublishOptions.preconditionNotMet(response)) {
1603                pushNodeConfiguration(account, node, options, new OnConfigurationPushed() {
1604                    @Override
1605                    public void onPushSucceeded() {
1606                        pushNodeAndEnforcePublishOptions(account, node, element, options, false);
1607                    }
1608
1609                    @Override
1610                    public void onPushFailed() {
1611                        Log.d(Config.LOGTAG,account.getJid().asBareJid()+": unable to push node configuration ("+node+")");
1612                    }
1613                });
1614            } else {
1615                Log.d(Config.LOGTAG,account.getJid().asBareJid()+": error publishing bookmarks (retry="+Boolean.toString(retry)+") "+response);
1616            }
1617        });
1618    }
1619
1620	private void restoreFromDatabase() {
1621		synchronized (this.conversations) {
1622			final Map<String, Account> accountLookupTable = new Hashtable<>();
1623			for (Account account : this.accounts) {
1624				accountLookupTable.put(account.getUuid(), account);
1625			}
1626			Log.d(Config.LOGTAG, "restoring conversations...");
1627			final long startTimeConversationsRestore = SystemClock.elapsedRealtime();
1628			this.conversations.addAll(databaseBackend.getConversations(Conversation.STATUS_AVAILABLE));
1629			for (Iterator<Conversation> iterator = conversations.listIterator(); iterator.hasNext(); ) {
1630				Conversation conversation = iterator.next();
1631				Account account = accountLookupTable.get(conversation.getAccountUuid());
1632				if (account != null) {
1633					conversation.setAccount(account);
1634				} else {
1635					Log.e(Config.LOGTAG, "unable to restore Conversations with " + conversation.getJid());
1636					iterator.remove();
1637				}
1638			}
1639			long diffConversationsRestore = SystemClock.elapsedRealtime() - startTimeConversationsRestore;
1640			Log.d(Config.LOGTAG, "finished restoring conversations in " + diffConversationsRestore + "ms");
1641			Runnable runnable = () -> {
1642				long deletionDate = getAutomaticMessageDeletionDate();
1643				mLastExpiryRun.set(SystemClock.elapsedRealtime());
1644				if (deletionDate > 0) {
1645					Log.d(Config.LOGTAG, "deleting messages that are older than " + AbstractGenerator.getTimestamp(deletionDate));
1646					databaseBackend.expireOldMessages(deletionDate);
1647				}
1648				Log.d(Config.LOGTAG, "restoring roster...");
1649				for (Account account : accounts) {
1650					databaseBackend.readRoster(account.getRoster());
1651					account.initAccountServices(XmppConnectionService.this); //roster needs to be loaded at this stage
1652				}
1653				getBitmapCache().evictAll();
1654				loadPhoneContacts();
1655				Log.d(Config.LOGTAG, "restoring messages...");
1656				final long startMessageRestore = SystemClock.elapsedRealtime();
1657				final Conversation quickLoad = QuickLoader.get(this.conversations);
1658				if (quickLoad != null) {
1659					restoreMessages(quickLoad);
1660					updateConversationUi();
1661					final long diffMessageRestore = SystemClock.elapsedRealtime() - startMessageRestore;
1662					Log.d(Config.LOGTAG,"quickly restored "+quickLoad.getName()+" after " + diffMessageRestore + "ms");
1663				}
1664				for (Conversation conversation : this.conversations) {
1665					if (quickLoad != conversation) {
1666						restoreMessages(conversation);
1667					}
1668				}
1669				mNotificationService.finishBacklog(false);
1670				restoredFromDatabaseLatch.countDown();
1671				final long diffMessageRestore = SystemClock.elapsedRealtime() - startMessageRestore;
1672				Log.d(Config.LOGTAG, "finished restoring messages in " + diffMessageRestore + "ms");
1673				updateConversationUi();
1674			};
1675			mDatabaseReaderExecutor.execute(runnable); //will contain one write command (expiry) but that's fine
1676		}
1677	}
1678
1679	private void restoreMessages(Conversation conversation) {
1680		conversation.addAll(0, databaseBackend.getMessages(conversation, Config.PAGE_SIZE));
1681		conversation.findUnsentTextMessages(message -> markMessage(message, Message.STATUS_WAITING));
1682		conversation.findUnreadMessages(message -> mNotificationService.pushFromBacklog(message));
1683	}
1684
1685	public void loadPhoneContacts() {
1686        mContactMergerExecutor.execute(() -> {
1687            Map<Jid, JabberIdContact> contacts = JabberIdContact.load(this);
1688            Log.d(Config.LOGTAG, "start merging phone contacts with roster");
1689            for (Account account : accounts) {
1690                List<Contact> withSystemAccounts = account.getRoster().getWithSystemAccounts(JabberIdContact.class);
1691                for (JabberIdContact jidContact : contacts.values()) {
1692                    final Contact contact = account.getRoster().getContact(jidContact.getJid());
1693                    boolean needsCacheClean = contact.setPhoneContact(jidContact);
1694                    if (needsCacheClean) {
1695                        getAvatarService().clear(contact);
1696                    }
1697                    withSystemAccounts.remove(contact);
1698                }
1699                for (Contact contact : withSystemAccounts) {
1700                    boolean needsCacheClean = contact.unsetPhoneContact(JabberIdContact.class);
1701                    if (needsCacheClean) {
1702                        getAvatarService().clear(contact);
1703                    }
1704                }
1705            }
1706            Log.d(Config.LOGTAG, "finished merging phone contacts");
1707            mShortcutService.refresh(mInitialAddressbookSyncCompleted.compareAndSet(false, true));
1708            updateRosterUi();
1709            mQuickConversationsService.considerSync();
1710        });
1711	}
1712
1713
1714	public void syncRoster(final Account account) {
1715		mRosterSyncTaskManager.execute(account, () -> databaseBackend.writeRoster(account.getRoster()));
1716	}
1717
1718	public List<Conversation> getConversations() {
1719		return this.conversations;
1720	}
1721
1722	private void markFileDeleted(final String path) {
1723        final File file = new File(path);
1724        final boolean isInternalFile = fileBackend.isInternalFile(file);
1725        final List<String> uuids = databaseBackend.markFileAsDeleted(file, isInternalFile);
1726        Log.d(Config.LOGTAG, "deleted file " + path+" internal="+isInternalFile+", database hits="+uuids.size());
1727        markUuidsAsDeletedFiles(uuids);
1728	}
1729
1730	private void markUuidsAsDeletedFiles(List<String> uuids) {
1731        boolean deleted = false;
1732        for (Conversation conversation : getConversations()) {
1733            deleted |= conversation.markAsDeleted(uuids);
1734        }
1735        if (deleted) {
1736            updateConversationUi();
1737        }
1738    }
1739
1740    private void markChangedFiles(List<DatabaseBackend.FilePathInfo> infos) {
1741        boolean changed = false;
1742        for (Conversation conversation : getConversations()) {
1743            changed |= conversation.markAsChanged(infos);
1744        }
1745        if (changed) {
1746            updateConversationUi();
1747        }
1748    }
1749
1750	public void populateWithOrderedConversations(final List<Conversation> list) {
1751		populateWithOrderedConversations(list, true, true);
1752	}
1753
1754	public void populateWithOrderedConversations(final List<Conversation> list, final boolean includeNoFileUpload) {
1755        populateWithOrderedConversations(list, includeNoFileUpload, true);
1756    }
1757
1758	public void populateWithOrderedConversations(final List<Conversation> list, final boolean includeNoFileUpload, final boolean sort) {
1759        final List<String> orderedUuids;
1760        if (sort) {
1761            orderedUuids = null;
1762        } else {
1763            orderedUuids = new ArrayList<>();
1764            for(Conversation conversation : list) {
1765                orderedUuids.add(conversation.getUuid());
1766            }
1767        }
1768		list.clear();
1769		if (includeNoFileUpload) {
1770			list.addAll(getConversations());
1771		} else {
1772			for (Conversation conversation : getConversations()) {
1773				if (conversation.getMode() == Conversation.MODE_SINGLE
1774						|| (conversation.getAccount().httpUploadAvailable() && conversation.getMucOptions().participating())) {
1775					list.add(conversation);
1776				}
1777			}
1778		}
1779		try {
1780		    if (orderedUuids != null) {
1781                Collections.sort(list, (a, b) -> {
1782                    final int indexA = orderedUuids.indexOf(a.getUuid());
1783                    final int indexB = orderedUuids.indexOf(b.getUuid());
1784                    if (indexA == -1 || indexB == -1 || indexA == indexB) {
1785                        return a.compareTo(b);
1786                    }
1787                    return indexA - indexB;
1788                });
1789            } else {
1790                Collections.sort(list);
1791            }
1792		} catch (IllegalArgumentException e) {
1793			//ignore
1794		}
1795	}
1796
1797	public void loadMoreMessages(final Conversation conversation, final long timestamp, final OnMoreMessagesLoaded callback) {
1798		if (XmppConnectionService.this.getMessageArchiveService().queryInProgress(conversation, callback)) {
1799			return;
1800		} else if (timestamp == 0) {
1801			return;
1802		}
1803		Log.d(Config.LOGTAG, "load more messages for " + conversation.getName() + " prior to " + MessageGenerator.getTimestamp(timestamp));
1804		final Runnable runnable = () -> {
1805			final Account account = conversation.getAccount();
1806			List<Message> messages = databaseBackend.getMessages(conversation, 50, timestamp);
1807			if (messages.size() > 0) {
1808				conversation.addAll(0, messages);
1809				callback.onMoreMessagesLoaded(messages.size(), conversation);
1810			} else if (conversation.hasMessagesLeftOnServer()
1811					&& account.isOnlineAndConnected()
1812					&& conversation.getLastClearHistory().getTimestamp() == 0) {
1813				final boolean mamAvailable;
1814				if (conversation.getMode() == Conversation.MODE_SINGLE) {
1815					mamAvailable = account.getXmppConnection().getFeatures().mam() && !conversation.getContact().isBlocked();
1816				} else {
1817					mamAvailable = conversation.getMucOptions().mamSupport();
1818				}
1819				if (mamAvailable) {
1820					MessageArchiveService.Query query = getMessageArchiveService().query(conversation, new MamReference(0), timestamp, false);
1821					if (query != null) {
1822						query.setCallback(callback);
1823						callback.informUser(R.string.fetching_history_from_server);
1824					} else {
1825						callback.informUser(R.string.not_fetching_history_retention_period);
1826					}
1827
1828				}
1829			}
1830		};
1831		mDatabaseReaderExecutor.execute(runnable);
1832	}
1833
1834	public List<Account> getAccounts() {
1835		return this.accounts;
1836	}
1837
1838
1839    /**
1840     * This will find all conferences with the contact as member and also the conference that is the contact (that 'fake' contact is used to store the avatar)
1841     */
1842	public List<Conversation> findAllConferencesWith(Contact contact) {
1843		ArrayList<Conversation> results = new ArrayList<>();
1844		for (final Conversation c : conversations) {
1845			if (c.getMode() == Conversation.MODE_MULTI && (c.getJid().asBareJid().equals(contact.getJid().asBareJid()) || c.getMucOptions().isContactInRoom(contact))) {
1846			    results.add(c);
1847			}
1848		}
1849		return results;
1850	}
1851
1852	public Conversation find(final Iterable<Conversation> haystack, final Contact contact) {
1853		for (final Conversation conversation : haystack) {
1854			if (conversation.getContact() == contact) {
1855				return conversation;
1856			}
1857		}
1858		return null;
1859	}
1860
1861	public Conversation find(final Iterable<Conversation> haystack, final Account account, final Jid jid) {
1862		if (jid == null) {
1863			return null;
1864		}
1865		for (final Conversation conversation : haystack) {
1866			if ((account == null || conversation.getAccount() == account)
1867					&& (conversation.getJid().asBareJid().equals(jid.asBareJid()))) {
1868				return conversation;
1869			}
1870		}
1871		return null;
1872	}
1873
1874	public boolean isConversationsListEmpty(final Conversation ignore) {
1875		synchronized (this.conversations) {
1876			final int size = this.conversations.size();
1877			return size == 0 || size == 1 && this.conversations.get(0) == ignore;
1878		}
1879	}
1880
1881	public boolean isConversationStillOpen(final Conversation conversation) {
1882		synchronized (this.conversations) {
1883			for (Conversation current : this.conversations) {
1884				if (current == conversation) {
1885					return true;
1886				}
1887			}
1888		}
1889		return false;
1890	}
1891
1892	public Conversation findOrCreateConversation(Account account, Jid jid, boolean muc, final boolean async) {
1893		return this.findOrCreateConversation(account, jid, muc, false, async);
1894	}
1895
1896	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final boolean joinAfterCreate, final boolean async) {
1897		return this.findOrCreateConversation(account, jid, muc, joinAfterCreate, null, async);
1898	}
1899
1900	public Conversation findOrCreateConversation(final Account account, final Jid jid, final boolean muc, final boolean joinAfterCreate, final MessageArchiveService.Query query, final boolean async) {
1901		synchronized (this.conversations) {
1902			Conversation conversation = find(account, jid);
1903			if (conversation != null) {
1904				return conversation;
1905			}
1906			conversation = databaseBackend.findConversation(account, jid);
1907			final boolean loadMessagesFromDb;
1908			if (conversation != null) {
1909				conversation.setStatus(Conversation.STATUS_AVAILABLE);
1910				conversation.setAccount(account);
1911				if (muc) {
1912					conversation.setMode(Conversation.MODE_MULTI);
1913					conversation.setContactJid(jid);
1914				} else {
1915					conversation.setMode(Conversation.MODE_SINGLE);
1916					conversation.setContactJid(jid.asBareJid());
1917				}
1918				databaseBackend.updateConversation(conversation);
1919				loadMessagesFromDb = conversation.messagesLoaded.compareAndSet(true, false);
1920			} else {
1921				String conversationName;
1922				Contact contact = account.getRoster().getContact(jid);
1923				if (contact != null) {
1924					conversationName = contact.getDisplayName();
1925				} else {
1926					conversationName = jid.getLocal();
1927				}
1928				if (muc) {
1929					conversation = new Conversation(conversationName, account, jid,
1930							Conversation.MODE_MULTI);
1931				} else {
1932					conversation = new Conversation(conversationName, account, jid.asBareJid(),
1933							Conversation.MODE_SINGLE);
1934				}
1935				this.databaseBackend.createConversation(conversation);
1936				loadMessagesFromDb = false;
1937			}
1938			final Conversation c = conversation;
1939			final Runnable runnable = () -> {
1940				if (loadMessagesFromDb) {
1941					c.addAll(0, databaseBackend.getMessages(c, Config.PAGE_SIZE));
1942					updateConversationUi();
1943					c.messagesLoaded.set(true);
1944				}
1945				if (account.getXmppConnection() != null
1946						&& !c.getContact().isBlocked()
1947						&& account.getXmppConnection().getFeatures().mam()
1948						&& !muc) {
1949					if (query == null) {
1950						mMessageArchiveService.query(c);
1951					} else {
1952						if (query.getConversation() == null) {
1953							mMessageArchiveService.query(c, query.getStart(), query.isCatchup());
1954						}
1955					}
1956				}
1957				if (joinAfterCreate) {
1958					joinMuc(c);
1959				}
1960			};
1961			if (async) {
1962				mDatabaseReaderExecutor.execute(runnable);
1963			} else {
1964				runnable.run();
1965			}
1966			this.conversations.add(conversation);
1967			updateConversationUi();
1968			return conversation;
1969		}
1970	}
1971
1972	public void archiveConversation(Conversation conversation) {
1973	    archiveConversation(conversation, true);
1974    }
1975
1976	private void archiveConversation(Conversation conversation, final boolean maySyncronizeWithBookmarks) {
1977		getNotificationService().clear(conversation);
1978		conversation.setStatus(Conversation.STATUS_ARCHIVED);
1979		conversation.setNextMessage(null);
1980		synchronized (this.conversations) {
1981			getMessageArchiveService().kill(conversation);
1982			if (conversation.getMode() == Conversation.MODE_MULTI) {
1983				if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
1984					Bookmark bookmark = conversation.getBookmark();
1985					if (maySyncronizeWithBookmarks && bookmark != null && synchronizeWithBookmarks()) {
1986						if (conversation.getMucOptions().getError() == MucOptions.Error.DESTROYED) {
1987							Account account = bookmark.getAccount();
1988							bookmark.setConversation(null);
1989							account.getBookmarks().remove(bookmark);
1990							pushBookmarks(account);
1991						} else if (bookmark.autojoin()) {
1992							bookmark.setAutojoin(false);
1993							pushBookmarks(bookmark.getAccount());
1994						}
1995					}
1996				}
1997				leaveMuc(conversation);
1998			} else {
1999				if (conversation.getContact().getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)) {
2000				    stopPresenceUpdatesTo(conversation.getContact());
2001				}
2002			}
2003			updateConversation(conversation);
2004			this.conversations.remove(conversation);
2005			updateConversationUi();
2006		}
2007	}
2008
2009	public void stopPresenceUpdatesTo(Contact contact) {
2010        Log.d(Config.LOGTAG, "Canceling presence request from " + contact.getJid().toString());
2011        sendPresencePacket(contact.getAccount(), mPresenceGenerator.stopPresenceUpdatesTo(contact));
2012        contact.resetOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
2013    }
2014
2015	public void createAccount(final Account account) {
2016		account.initAccountServices(this);
2017		databaseBackend.createAccount(account);
2018		this.accounts.add(account);
2019		this.reconnectAccountInBackground(account);
2020		updateAccountUi();
2021		syncEnabledAccountSetting();
2022		toggleForegroundService();
2023	}
2024
2025	private void syncEnabledAccountSetting() {
2026	    final boolean hasEnabledAccounts = hasEnabledAccounts();
2027		getPreferences().edit().putBoolean(EventReceiver.SETTING_ENABLED_ACCOUNTS, hasEnabledAccounts).apply();
2028		toggleSetProfilePictureActivity(hasEnabledAccounts);
2029	}
2030
2031	private void toggleSetProfilePictureActivity(final boolean enabled) {
2032	    try {
2033	        final ComponentName name = new ComponentName(this, ChooseAccountForProfilePictureActivity.class);
2034	        final int targetState =  enabled ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED : PackageManager.COMPONENT_ENABLED_STATE_DISABLED;
2035            getPackageManager().setComponentEnabledSetting(name, targetState, PackageManager.DONT_KILL_APP);
2036        } catch (IllegalStateException e) {
2037	        Log.d(Config.LOGTAG,"unable to toggle profile picture actvitiy");
2038        }
2039    }
2040
2041	public void createAccountFromKey(final String alias, final OnAccountCreated callback) {
2042		new Thread(() -> {
2043			try {
2044				final X509Certificate[] chain = KeyChain.getCertificateChain(this, alias);
2045				final X509Certificate cert = chain != null && chain.length > 0 ? chain[0] : null;
2046				if (cert == null) {
2047					callback.informUser(R.string.unable_to_parse_certificate);
2048					return;
2049				}
2050				Pair<Jid, String> info = CryptoHelper.extractJidAndName(cert);
2051				if (info == null) {
2052					callback.informUser(R.string.certificate_does_not_contain_jid);
2053					return;
2054				}
2055				if (findAccountByJid(info.first) == null) {
2056					Account account = new Account(info.first, "");
2057					account.setPrivateKeyAlias(alias);
2058					account.setOption(Account.OPTION_DISABLED, true);
2059					account.setDisplayName(info.second);
2060					createAccount(account);
2061					callback.onAccountCreated(account);
2062					if (Config.X509_VERIFICATION) {
2063						try {
2064							getMemorizingTrustManager().getNonInteractive(account.getJid().getDomain()).checkClientTrusted(chain, "RSA");
2065						} catch (CertificateException e) {
2066							callback.informUser(R.string.certificate_chain_is_not_trusted);
2067						}
2068					}
2069				} else {
2070					callback.informUser(R.string.account_already_exists);
2071				}
2072			} catch (Exception e) {
2073				e.printStackTrace();
2074				callback.informUser(R.string.unable_to_parse_certificate);
2075			}
2076		}).start();
2077
2078	}
2079
2080	public void updateKeyInAccount(final Account account, final String alias) {
2081		Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": update key in account " + alias);
2082		try {
2083			X509Certificate[] chain = KeyChain.getCertificateChain(XmppConnectionService.this, alias);
2084			Log.d(Config.LOGTAG, account.getJid().asBareJid() + " loaded certificate chain");
2085			Pair<Jid, String> info = CryptoHelper.extractJidAndName(chain[0]);
2086			if (info == null) {
2087				showErrorToastInUi(R.string.certificate_does_not_contain_jid);
2088				return;
2089			}
2090			if (account.getJid().asBareJid().equals(info.first)) {
2091				account.setPrivateKeyAlias(alias);
2092				account.setDisplayName(info.second);
2093				databaseBackend.updateAccount(account);
2094				if (Config.X509_VERIFICATION) {
2095					try {
2096						getMemorizingTrustManager().getNonInteractive().checkClientTrusted(chain, "RSA");
2097					} catch (CertificateException e) {
2098						showErrorToastInUi(R.string.certificate_chain_is_not_trusted);
2099					}
2100					account.getAxolotlService().regenerateKeys(true);
2101				}
2102			} else {
2103				showErrorToastInUi(R.string.jid_does_not_match_certificate);
2104			}
2105		} catch (Exception e) {
2106			e.printStackTrace();
2107		}
2108	}
2109
2110	public boolean updateAccount(final Account account) {
2111		if (databaseBackend.updateAccount(account)) {
2112			account.setShowErrorNotification(true);
2113			this.statusListener.onStatusChanged(account);
2114			databaseBackend.updateAccount(account);
2115			reconnectAccountInBackground(account);
2116			updateAccountUi();
2117			getNotificationService().updateErrorNotification();
2118			toggleForegroundService();
2119			syncEnabledAccountSetting();
2120			return true;
2121		} else {
2122			return false;
2123		}
2124	}
2125
2126	public void updateAccountPasswordOnServer(final Account account, final String newPassword, final OnAccountPasswordChanged callback) {
2127		final IqPacket iq = getIqGenerator().generateSetPassword(account, newPassword);
2128		sendIqPacket(account, iq, (a, packet) -> {
2129			if (packet.getType() == IqPacket.TYPE.RESULT) {
2130				a.setPassword(newPassword);
2131				a.setOption(Account.OPTION_MAGIC_CREATE, false);
2132				databaseBackend.updateAccount(a);
2133				callback.onPasswordChangeSucceeded();
2134			} else {
2135				callback.onPasswordChangeFailed();
2136			}
2137		});
2138	}
2139
2140	public void deleteAccount(final Account account) {
2141		synchronized (this.conversations) {
2142			for (final Conversation conversation : conversations) {
2143				if (conversation.getAccount() == account) {
2144					if (conversation.getMode() == Conversation.MODE_MULTI) {
2145						leaveMuc(conversation);
2146					}
2147					conversations.remove(conversation);
2148				}
2149			}
2150			if (account.getXmppConnection() != null) {
2151				new Thread(() -> disconnect(account, true)).start();
2152			}
2153			final Runnable runnable = () -> {
2154				if (!databaseBackend.deleteAccount(account)) {
2155					Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": unable to delete account");
2156				}
2157			};
2158			mDatabaseWriterExecutor.execute(runnable);
2159			this.accounts.remove(account);
2160			this.mRosterSyncTaskManager.clear(account);
2161			updateAccountUi();
2162			getNotificationService().updateErrorNotification();
2163			syncEnabledAccountSetting();
2164			toggleForegroundService();
2165		}
2166	}
2167
2168	public void setOnConversationListChangedListener(OnConversationUpdate listener) {
2169		final boolean remainingListeners;
2170		synchronized (LISTENER_LOCK) {
2171			remainingListeners = checkListeners();
2172			if (!this.mOnConversationUpdates.add(listener)) {
2173				Log.w(Config.LOGTAG,listener.getClass().getName()+" is already registered as ConversationListChangedListener");
2174			}
2175			this.mNotificationService.setIsInForeground(this.mOnConversationUpdates.size() > 0);
2176		}
2177		if (remainingListeners) {
2178			switchToForeground();
2179		}
2180	}
2181
2182	public void removeOnConversationListChangedListener(OnConversationUpdate listener) {
2183		final boolean remainingListeners;
2184		synchronized (LISTENER_LOCK) {
2185			this.mOnConversationUpdates.remove(listener);
2186			this.mNotificationService.setIsInForeground(this.mOnConversationUpdates.size() > 0);
2187			remainingListeners = checkListeners();
2188		}
2189		if (remainingListeners) {
2190			switchToBackground();
2191		}
2192	}
2193
2194	public void setOnShowErrorToastListener(OnShowErrorToast listener) {
2195		final boolean remainingListeners;
2196		synchronized (LISTENER_LOCK) {
2197			remainingListeners = checkListeners();
2198			if (!this.mOnShowErrorToasts.add(listener)) {
2199				Log.w(Config.LOGTAG,listener.getClass().getName()+" is already registered as OnShowErrorToastListener");
2200			}
2201		}
2202		if (remainingListeners) {
2203			switchToForeground();
2204		}
2205	}
2206
2207	public void removeOnShowErrorToastListener(OnShowErrorToast onShowErrorToast) {
2208		final boolean remainingListeners;
2209		synchronized (LISTENER_LOCK) {
2210			this.mOnShowErrorToasts.remove(onShowErrorToast);
2211			remainingListeners = checkListeners();
2212		}
2213		if (remainingListeners) {
2214			switchToBackground();
2215		}
2216	}
2217
2218	public void setOnAccountListChangedListener(OnAccountUpdate listener) {
2219		final boolean remainingListeners;
2220		synchronized (LISTENER_LOCK) {
2221			remainingListeners = checkListeners();
2222			if (!this.mOnAccountUpdates.add(listener)) {
2223				Log.w(Config.LOGTAG,listener.getClass().getName()+" is already registered as OnAccountListChangedtListener");
2224			}
2225		}
2226		if (remainingListeners) {
2227			switchToForeground();
2228		}
2229	}
2230
2231	public void removeOnAccountListChangedListener(OnAccountUpdate listener) {
2232		final boolean remainingListeners;
2233		synchronized (LISTENER_LOCK) {
2234			this.mOnAccountUpdates.remove(listener);
2235			remainingListeners = checkListeners();
2236		}
2237		if (remainingListeners) {
2238			switchToBackground();
2239		}
2240	}
2241
2242	public void setOnCaptchaRequestedListener(OnCaptchaRequested listener) {
2243		final boolean remainingListeners;
2244		synchronized (LISTENER_LOCK) {
2245			remainingListeners = checkListeners();
2246			if (!this.mOnCaptchaRequested.add(listener)) {
2247				Log.w(Config.LOGTAG,listener.getClass().getName()+" is already registered as OnCaptchaRequestListener");
2248			}
2249		}
2250		if (remainingListeners) {
2251			switchToForeground();
2252		}
2253	}
2254
2255	public void removeOnCaptchaRequestedListener(OnCaptchaRequested listener) {
2256		final boolean remainingListeners;
2257		synchronized (LISTENER_LOCK) {
2258			this.mOnCaptchaRequested.remove(listener);
2259			remainingListeners = checkListeners();
2260		}
2261		if (remainingListeners) {
2262			switchToBackground();
2263		}
2264	}
2265
2266	public void setOnRosterUpdateListener(final OnRosterUpdate listener) {
2267		final boolean remainingListeners;
2268		synchronized (LISTENER_LOCK) {
2269			remainingListeners = checkListeners();
2270			if (!this.mOnRosterUpdates.add(listener)) {
2271				Log.w(Config.LOGTAG,listener.getClass().getName()+" is already registered as OnRosterUpdateListener");
2272			}
2273		}
2274		if (remainingListeners) {
2275			switchToForeground();
2276		}
2277	}
2278
2279	public void removeOnRosterUpdateListener(final OnRosterUpdate listener) {
2280		final boolean remainingListeners;
2281		synchronized (LISTENER_LOCK) {
2282			this.mOnRosterUpdates.remove(listener);
2283			remainingListeners = checkListeners();
2284		}
2285		if (remainingListeners) {
2286			switchToBackground();
2287		}
2288	}
2289
2290	public void setOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
2291		final boolean remainingListeners;
2292		synchronized (LISTENER_LOCK) {
2293			remainingListeners = checkListeners();
2294			if (!this.mOnUpdateBlocklist.add(listener)) {
2295				Log.w(Config.LOGTAG,listener.getClass().getName()+" is already registered as OnUpdateBlocklistListener");
2296			}
2297		}
2298		if (remainingListeners) {
2299			switchToForeground();
2300		}
2301	}
2302
2303	public void removeOnUpdateBlocklistListener(final OnUpdateBlocklist listener) {
2304		final boolean remainingListeners;
2305		synchronized (LISTENER_LOCK) {
2306			this.mOnUpdateBlocklist.remove(listener);
2307			remainingListeners = checkListeners();
2308		}
2309		if (remainingListeners) {
2310			switchToBackground();
2311		}
2312	}
2313
2314	public void setOnKeyStatusUpdatedListener(final OnKeyStatusUpdated listener) {
2315		final boolean remainingListeners;
2316		synchronized (LISTENER_LOCK) {
2317			remainingListeners = checkListeners();
2318			if (!this.mOnKeyStatusUpdated.add(listener)) {
2319				Log.w(Config.LOGTAG,listener.getClass().getName()+" is already registered as OnKeyStatusUpdateListener");
2320			}
2321		}
2322		if (remainingListeners) {
2323			switchToForeground();
2324		}
2325	}
2326
2327	public void removeOnNewKeysAvailableListener(final OnKeyStatusUpdated listener) {
2328		final boolean remainingListeners;
2329		synchronized (LISTENER_LOCK) {
2330			this.mOnKeyStatusUpdated.remove(listener);
2331			remainingListeners = checkListeners();
2332		}
2333		if (remainingListeners) {
2334			switchToBackground();
2335		}
2336	}
2337
2338	public void setOnMucRosterUpdateListener(OnMucRosterUpdate listener) {
2339		final boolean remainingListeners;
2340		synchronized (LISTENER_LOCK) {
2341			remainingListeners = checkListeners();
2342			if (!this.mOnMucRosterUpdate.add(listener)) {
2343				Log.w(Config.LOGTAG,listener.getClass().getName()+" is already registered as OnMucRosterListener");
2344			}
2345		}
2346		if (remainingListeners) {
2347			switchToForeground();
2348		}
2349	}
2350
2351	public void removeOnMucRosterUpdateListener(final OnMucRosterUpdate listener) {
2352		final boolean remainingListeners;
2353		synchronized (LISTENER_LOCK) {
2354			this.mOnMucRosterUpdate.remove(listener);
2355			remainingListeners = checkListeners();
2356		}
2357		if (remainingListeners) {
2358			switchToBackground();
2359		}
2360	}
2361
2362	public boolean checkListeners() {
2363		return (this.mOnAccountUpdates.size() == 0
2364				&& this.mOnConversationUpdates.size() == 0
2365				&& this.mOnRosterUpdates.size() == 0
2366				&& this.mOnCaptchaRequested.size() == 0
2367				&& this.mOnMucRosterUpdate.size() == 0
2368				&& this.mOnUpdateBlocklist.size() == 0
2369				&& this.mOnShowErrorToasts.size() == 0
2370				&& this.mOnKeyStatusUpdated.size() == 0);
2371	}
2372
2373	private void switchToForeground() {
2374		final boolean broadcastLastActivity = broadcastLastActivity();
2375		for (Conversation conversation : getConversations()) {
2376			if (conversation.getMode() == Conversation.MODE_MULTI) {
2377				conversation.getMucOptions().resetChatState();
2378			} else {
2379				conversation.setIncomingChatState(Config.DEFAULT_CHATSTATE);
2380			}
2381		}
2382		for (Account account : getAccounts()) {
2383			if (account.getStatus() == Account.State.ONLINE) {
2384				account.deactivateGracePeriod();
2385				final XmppConnection connection = account.getXmppConnection();
2386				if (connection != null) {
2387					if (connection.getFeatures().csi()) {
2388						connection.sendActive();
2389					}
2390					if (broadcastLastActivity) {
2391						sendPresence(account, false); //send new presence but don't include idle because we are not
2392					}
2393				}
2394			}
2395		}
2396		Log.d(Config.LOGTAG, "app switched into foreground");
2397	}
2398
2399	private void switchToBackground() {
2400		final boolean broadcastLastActivity = broadcastLastActivity();
2401		if (broadcastLastActivity) {
2402			mLastActivity = System.currentTimeMillis();
2403			final SharedPreferences.Editor editor = getPreferences().edit();
2404			editor.putLong(SETTING_LAST_ACTIVITY_TS, mLastActivity);
2405			editor.apply();
2406		}
2407		for (Account account : getAccounts()) {
2408			if (account.getStatus() == Account.State.ONLINE) {
2409				XmppConnection connection = account.getXmppConnection();
2410				if (connection != null) {
2411					if (broadcastLastActivity) {
2412						sendPresence(account, true);
2413					}
2414					if (connection.getFeatures().csi()) {
2415						connection.sendInactive();
2416					}
2417				}
2418			}
2419		}
2420		this.mNotificationService.setIsInForeground(false);
2421		Log.d(Config.LOGTAG, "app switched into background");
2422	}
2423
2424	private void connectMultiModeConversations(Account account) {
2425		List<Conversation> conversations = getConversations();
2426		for (Conversation conversation : conversations) {
2427			if (conversation.getMode() == Conversation.MODE_MULTI && conversation.getAccount() == account) {
2428				joinMuc(conversation);
2429			}
2430		}
2431	}
2432
2433	public void joinMuc(Conversation conversation) {
2434		joinMuc(conversation, null, false);
2435	}
2436
2437	public void joinMuc(Conversation conversation, boolean followedInvite) {
2438		joinMuc(conversation, null, followedInvite);
2439	}
2440
2441	private void joinMuc(Conversation conversation, final OnConferenceJoined onConferenceJoined) {
2442		joinMuc(conversation, onConferenceJoined, false);
2443	}
2444
2445	private void joinMuc(Conversation conversation, final OnConferenceJoined onConferenceJoined, final boolean followedInvite) {
2446		Account account = conversation.getAccount();
2447		account.pendingConferenceJoins.remove(conversation);
2448		account.pendingConferenceLeaves.remove(conversation);
2449		if (account.getStatus() == Account.State.ONLINE) {
2450			sendPresencePacket(account, mPresenceGenerator.leave(conversation.getMucOptions()));
2451			conversation.resetMucOptions();
2452			if (onConferenceJoined != null) {
2453				conversation.getMucOptions().flagNoAutoPushConfiguration();
2454			}
2455			conversation.setHasMessagesLeftOnServer(false);
2456			fetchConferenceConfiguration(conversation, new OnConferenceConfigurationFetched() {
2457
2458				private void join(Conversation conversation) {
2459					Account account = conversation.getAccount();
2460					final MucOptions mucOptions = conversation.getMucOptions();
2461
2462					if (mucOptions.nonanonymous() && !mucOptions.membersOnly() && !conversation.getBooleanAttribute("accept_non_anonymous", false)) {
2463					    mucOptions.setError(MucOptions.Error.NON_ANONYMOUS);
2464					    updateConversationUi();
2465                        if (onConferenceJoined != null) {
2466                            onConferenceJoined.onConferenceJoined(conversation);
2467                        }
2468					    return;
2469                    }
2470
2471					final Jid joinJid = mucOptions.getSelf().getFullJid();
2472					Log.d(Config.LOGTAG, account.getJid().asBareJid().toString() + ": joining conversation " + joinJid.toString());
2473					PresencePacket packet = mPresenceGenerator.selfPresence(account, Presence.Status.ONLINE, mucOptions.nonanonymous() || onConferenceJoined != null);
2474					packet.setTo(joinJid);
2475					Element x = packet.addChild("x", "http://jabber.org/protocol/muc");
2476					if (conversation.getMucOptions().getPassword() != null) {
2477						x.addChild("password").setContent(mucOptions.getPassword());
2478					}
2479
2480					if (mucOptions.mamSupport()) {
2481						// Use MAM instead of the limited muc history to get history
2482						x.addChild("history").setAttribute("maxchars", "0");
2483					} else {
2484						// Fallback to muc history
2485						x.addChild("history").setAttribute("since", PresenceGenerator.getTimestamp(conversation.getLastMessageTransmitted().getTimestamp()));
2486					}
2487					sendPresencePacket(account, packet);
2488					if (onConferenceJoined != null) {
2489						onConferenceJoined.onConferenceJoined(conversation);
2490					}
2491					if (!joinJid.equals(conversation.getJid())) {
2492						conversation.setContactJid(joinJid);
2493						databaseBackend.updateConversation(conversation);
2494					}
2495
2496					if (mucOptions.mamSupport()) {
2497						getMessageArchiveService().catchupMUC(conversation);
2498					}
2499					if (mucOptions.isPrivateAndNonAnonymous()) {
2500						fetchConferenceMembers(conversation);
2501						if (followedInvite && conversation.getBookmark() == null) {
2502							saveConversationAsBookmark(conversation, null);
2503						}
2504					}
2505					sendUnsentMessages(conversation);
2506				}
2507
2508				@Override
2509				public void onConferenceConfigurationFetched(Conversation conversation) {
2510				    if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2511				        Log.d(Config.LOGTAG,account.getJid().asBareJid()+": conversation ("+conversation.getJid()+") got archived before IQ result");
2512				        return;
2513                    }
2514					join(conversation);
2515				}
2516
2517				@Override
2518				public void onFetchFailed(final Conversation conversation, Element error) {
2519                    if (conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
2520                        Log.d(Config.LOGTAG,account.getJid().asBareJid()+": conversation ("+conversation.getJid()+") got archived before IQ result");
2521                        return;
2522                    }
2523					if (error != null && "remote-server-not-found".equals(error.getName())) {
2524						conversation.getMucOptions().setError(MucOptions.Error.SERVER_NOT_FOUND);
2525						updateConversationUi();
2526					} else {
2527						join(conversation);
2528						fetchConferenceConfiguration(conversation);
2529					}
2530				}
2531			});
2532			updateConversationUi();
2533		} else {
2534			account.pendingConferenceJoins.add(conversation);
2535			conversation.resetMucOptions();
2536			conversation.setHasMessagesLeftOnServer(false);
2537			updateConversationUi();
2538		}
2539	}
2540
2541	private void fetchConferenceMembers(final Conversation conversation) {
2542		final Account account = conversation.getAccount();
2543		final AxolotlService axolotlService = account.getAxolotlService();
2544		final String[] affiliations = {"member", "admin", "owner"};
2545		OnIqPacketReceived callback = new OnIqPacketReceived() {
2546
2547			private int i = 0;
2548			private boolean success = true;
2549
2550			@Override
2551			public void onIqPacketReceived(Account account, IqPacket packet) {
2552				final boolean omemoEnabled = conversation.getNextEncryption() == Message.ENCRYPTION_AXOLOTL;
2553				Element query = packet.query("http://jabber.org/protocol/muc#admin");
2554				if (packet.getType() == IqPacket.TYPE.RESULT && query != null) {
2555					for (Element child : query.getChildren()) {
2556						if ("item".equals(child.getName())) {
2557							MucOptions.User user = AbstractParser.parseItem(conversation, child);
2558							if (!user.realJidMatchesAccount()) {
2559								boolean isNew = conversation.getMucOptions().updateUser(user);
2560								Contact contact = user.getContact();
2561								if (omemoEnabled
2562										&& isNew
2563										&& user.getRealJid() != null
2564										&& (contact == null || !contact.mutualPresenceSubscription())
2565										&& axolotlService.hasEmptyDeviceList(user.getRealJid())) {
2566									axolotlService.fetchDeviceIds(user.getRealJid());
2567								}
2568							}
2569						}
2570					}
2571				} else {
2572					success = false;
2573					Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": could not request affiliation " + affiliations[i] + " in " + conversation.getJid().asBareJid());
2574				}
2575				++i;
2576				if (i >= affiliations.length) {
2577					List<Jid> members = conversation.getMucOptions().getMembers(true);
2578					if (success) {
2579						List<Jid> cryptoTargets = conversation.getAcceptedCryptoTargets();
2580						boolean changed = false;
2581						for (ListIterator<Jid> iterator = cryptoTargets.listIterator(); iterator.hasNext(); ) {
2582							Jid jid = iterator.next();
2583							if (!members.contains(jid) && !members.contains(Jid.ofDomain(jid.getDomain()))) {
2584								iterator.remove();
2585								Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": removed " + jid + " from crypto targets of " + conversation.getName());
2586								changed = true;
2587							}
2588						}
2589						if (changed) {
2590							conversation.setAcceptedCryptoTargets(cryptoTargets);
2591							updateConversation(conversation);
2592						}
2593					}
2594					getAvatarService().clear(conversation);
2595					updateMucRosterUi();
2596					updateConversationUi();
2597				}
2598			}
2599		};
2600		for (String affiliation : affiliations) {
2601			sendIqPacket(account, mIqGenerator.queryAffiliation(conversation, affiliation), callback);
2602		}
2603		Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": fetching members for " + conversation.getName());
2604	}
2605
2606	public void providePasswordForMuc(Conversation conversation, String password) {
2607		if (conversation.getMode() == Conversation.MODE_MULTI) {
2608			conversation.getMucOptions().setPassword(password);
2609			if (conversation.getBookmark() != null) {
2610				if (synchronizeWithBookmarks()) {
2611					conversation.getBookmark().setAutojoin(true);
2612				}
2613				pushBookmarks(conversation.getAccount());
2614			}
2615			updateConversation(conversation);
2616			joinMuc(conversation);
2617		}
2618	}
2619
2620	private boolean hasEnabledAccounts() {
2621	    if (this.accounts == null) {
2622	        return false;
2623	    }
2624	    for (Account account : this.accounts) {
2625	        if (account.isEnabled()) {
2626	            return true;
2627	        }
2628	    }
2629	    return false;
2630	}
2631
2632
2633	public void getAttachments(final Conversation conversation, int limit, final OnMediaLoaded onMediaLoaded) {
2634        getAttachments(conversation.getAccount(), conversation.getJid().asBareJid(), limit, onMediaLoaded);
2635    }
2636
2637    public void getAttachments(final Account account, final Jid jid, final int limit, final OnMediaLoaded onMediaLoaded) {
2638        getAttachments(account.getUuid(),jid.asBareJid(),limit, onMediaLoaded);
2639    }
2640
2641
2642	public void getAttachments(final String account, final Jid jid, final int limit, final OnMediaLoaded onMediaLoaded) {
2643        new Thread(() -> onMediaLoaded.onMediaLoaded(fileBackend.convertToAttachments(databaseBackend.getRelativeFilePaths(account, jid, limit)))).start();
2644    }
2645
2646	public void persistSelfNick(MucOptions.User self) {
2647		final Conversation conversation = self.getConversation();
2648		final boolean tookProposedNickFromBookmark = conversation.getMucOptions().isTookProposedNickFromBookmark();
2649		Jid full = self.getFullJid();
2650		if (!full.equals(conversation.getJid())) {
2651			Log.d(Config.LOGTAG, "nick changed. updating");
2652			conversation.setContactJid(full);
2653			databaseBackend.updateConversation(conversation);
2654		}
2655
2656		final Bookmark bookmark = conversation.getBookmark();
2657		final String bookmarkedNick = bookmark == null ? null : bookmark.getNick();
2658        if (bookmark != null && (tookProposedNickFromBookmark || TextUtils.isEmpty(bookmarkedNick)) && !full.getResource().equals(bookmarkedNick)) {
2659            Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": persist nick '" + full.getResource() + "' into bookmark for " + conversation.getJid().asBareJid());
2660            bookmark.setNick(full.getResource());
2661            pushBookmarks(bookmark.getAccount());
2662        }
2663	}
2664
2665	public boolean renameInMuc(final Conversation conversation, final String nick, final UiCallback<Conversation> callback) {
2666		final MucOptions options = conversation.getMucOptions();
2667		final Jid joinJid = options.createJoinJid(nick);
2668		if (joinJid == null) {
2669			return false;
2670		}
2671		if (options.online()) {
2672			Account account = conversation.getAccount();
2673			options.setOnRenameListener(new OnRenameListener() {
2674
2675				@Override
2676				public void onSuccess() {
2677					callback.success(conversation);
2678				}
2679
2680				@Override
2681				public void onFailure() {
2682					callback.error(R.string.nick_in_use, conversation);
2683				}
2684			});
2685
2686			PresencePacket packet = new PresencePacket();
2687			packet.setTo(joinJid);
2688			packet.setFrom(conversation.getAccount().getJid());
2689
2690			String sig = account.getPgpSignature();
2691			if (sig != null) {
2692				packet.addChild("status").setContent("online");
2693				packet.addChild("x", "jabber:x:signed").setContent(sig);
2694			}
2695			sendPresencePacket(account, packet);
2696		} else {
2697			conversation.setContactJid(joinJid);
2698			databaseBackend.updateConversation(conversation);
2699			if (conversation.getAccount().getStatus() == Account.State.ONLINE) {
2700				Bookmark bookmark = conversation.getBookmark();
2701				if (bookmark != null) {
2702					bookmark.setNick(nick);
2703					pushBookmarks(bookmark.getAccount());
2704				}
2705				joinMuc(conversation);
2706			}
2707		}
2708		return true;
2709	}
2710
2711	public void leaveMuc(Conversation conversation) {
2712		leaveMuc(conversation, false);
2713	}
2714
2715	private void leaveMuc(Conversation conversation, boolean now) {
2716		Account account = conversation.getAccount();
2717		account.pendingConferenceJoins.remove(conversation);
2718		account.pendingConferenceLeaves.remove(conversation);
2719		if (account.getStatus() == Account.State.ONLINE || now) {
2720			sendPresencePacket(conversation.getAccount(), mPresenceGenerator.leave(conversation.getMucOptions()));
2721			conversation.getMucOptions().setOffline();
2722			Bookmark bookmark = conversation.getBookmark();
2723			if (bookmark != null) {
2724				bookmark.setConversation(null);
2725			}
2726			Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": leaving muc " + conversation.getJid());
2727		} else {
2728			account.pendingConferenceLeaves.add(conversation);
2729		}
2730	}
2731
2732	public String findConferenceServer(final Account account) {
2733		String server;
2734		if (account.getXmppConnection() != null) {
2735			server = account.getXmppConnection().getMucServer();
2736			if (server != null) {
2737				return server;
2738			}
2739		}
2740		for (Account other : getAccounts()) {
2741			if (other != account && other.getXmppConnection() != null) {
2742				server = other.getXmppConnection().getMucServer();
2743				if (server != null) {
2744					return server;
2745				}
2746			}
2747		}
2748		return null;
2749	}
2750
2751
2752	public void createPublicChannel(final Account account, final String name, final Jid address, final UiCallback<Conversation> callback) {
2753        joinMuc(findOrCreateConversation(account, address, true, false, true), conversation -> {
2754            final Bundle configuration = IqGenerator.defaultChannelConfiguration();
2755            if (!TextUtils.isEmpty(name)) {
2756                configuration.putString("muc#roomconfig_roomname", name);
2757            }
2758            pushConferenceConfiguration(conversation, configuration, new OnConfigurationPushed() {
2759                @Override
2760                public void onPushSucceeded() {
2761                    saveConversationAsBookmark(conversation, name);
2762                    callback.success(conversation);
2763                }
2764
2765                @Override
2766                public void onPushFailed() {
2767                    if (conversation.getMucOptions().getSelf().getAffiliation().ranks(MucOptions.Affiliation.OWNER)) {
2768                        callback.error(R.string.unable_to_set_channel_configuration, conversation);
2769                    } else {
2770                        callback.error(R.string.joined_an_existing_channel, conversation);
2771                    }
2772                }
2773            });
2774        });
2775    }
2776
2777	public boolean createAdhocConference(final Account account,
2778	                                     final String name,
2779	                                     final Iterable<Jid> jids,
2780	                                     final UiCallback<Conversation> callback) {
2781		Log.d(Config.LOGTAG, account.getJid().asBareJid().toString() + ": creating adhoc conference with " + jids.toString());
2782		if (account.getStatus() == Account.State.ONLINE) {
2783			try {
2784				String server = findConferenceServer(account);
2785				if (server == null) {
2786					if (callback != null) {
2787						callback.error(R.string.no_conference_server_found, null);
2788					}
2789					return false;
2790				}
2791				final Jid jid = Jid.of(CryptoHelper.pronounceable(getRNG()), server, null);
2792				final Conversation conversation = findOrCreateConversation(account, jid, true, false, true);
2793				joinMuc(conversation, new OnConferenceJoined() {
2794					@Override
2795					public void onConferenceJoined(final Conversation conversation) {
2796						final Bundle configuration = IqGenerator.defaultGroupChatConfiguration();
2797						if (!TextUtils.isEmpty(name)) {
2798							configuration.putString("muc#roomconfig_roomname", name);
2799						}
2800						pushConferenceConfiguration(conversation, configuration, new OnConfigurationPushed() {
2801							@Override
2802							public void onPushSucceeded() {
2803								for (Jid invite : jids) {
2804									invite(conversation, invite);
2805								}
2806								if (account.countPresences() > 1) {
2807									directInvite(conversation, account.getJid().asBareJid());
2808								}
2809								saveConversationAsBookmark(conversation, name);
2810								if (callback != null) {
2811									callback.success(conversation);
2812								}
2813							}
2814
2815							@Override
2816							public void onPushFailed() {
2817								archiveConversation(conversation);
2818								if (callback != null) {
2819									callback.error(R.string.conference_creation_failed, conversation);
2820								}
2821							}
2822						});
2823					}
2824				});
2825				return true;
2826			} catch (IllegalArgumentException e) {
2827				if (callback != null) {
2828					callback.error(R.string.conference_creation_failed, null);
2829				}
2830				return false;
2831			}
2832		} else {
2833			if (callback != null) {
2834				callback.error(R.string.not_connected_try_again, null);
2835			}
2836			return false;
2837		}
2838	}
2839
2840	public void fetchConferenceConfiguration(final Conversation conversation) {
2841		fetchConferenceConfiguration(conversation, null);
2842	}
2843
2844	public void fetchConferenceConfiguration(final Conversation conversation, final OnConferenceConfigurationFetched callback) {
2845		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2846		request.setTo(conversation.getJid().asBareJid());
2847		request.query("http://jabber.org/protocol/disco#info");
2848		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2849			@Override
2850			public void onIqPacketReceived(Account account, IqPacket packet) {
2851				if (packet.getType() == IqPacket.TYPE.RESULT) {
2852
2853					final MucOptions mucOptions = conversation.getMucOptions();
2854					final Bookmark bookmark = conversation.getBookmark();
2855					final boolean sameBefore = StringUtils.equals(bookmark == null ? null : bookmark.getBookmarkName(), mucOptions.getName());
2856
2857					if (mucOptions.updateConfiguration(new ServiceDiscoveryResult(packet))) {
2858						Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": muc configuration changed for " + conversation.getJid().asBareJid());
2859						updateConversation(conversation);
2860					}
2861
2862					if (bookmark != null && (sameBefore || bookmark.getBookmarkName() == null)) {
2863						if (bookmark.setBookmarkName(StringUtils.nullOnEmpty(mucOptions.getName()))) {
2864							pushBookmarks(account);
2865						}
2866					}
2867
2868
2869					if (callback != null) {
2870						callback.onConferenceConfigurationFetched(conversation);
2871					}
2872
2873
2874
2875					updateConversationUi();
2876				} else if (packet.getType() == IqPacket.TYPE.ERROR) {
2877					if (callback != null) {
2878						callback.onFetchFailed(conversation, packet.getError());
2879					}
2880				}
2881			}
2882		});
2883	}
2884
2885	public void pushNodeConfiguration(Account account, final String node, final Bundle options, final OnConfigurationPushed callback) {
2886		pushNodeConfiguration(account, account.getJid().asBareJid(), node, options, callback);
2887	}
2888
2889	public void pushNodeConfiguration(Account account, final Jid jid, final String node, final Bundle options, final OnConfigurationPushed callback) {
2890        Log.d(Config.LOGTAG,"pushing node configuration");
2891		sendIqPacket(account, mIqGenerator.requestPubsubConfiguration(jid, node), new OnIqPacketReceived() {
2892			@Override
2893			public void onIqPacketReceived(Account account, IqPacket packet) {
2894				if (packet.getType() == IqPacket.TYPE.RESULT) {
2895					Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub#owner");
2896					Element configuration = pubsub == null ? null : pubsub.findChild("configure");
2897					Element x = configuration == null ? null : configuration.findChild("x", Namespace.DATA);
2898					if (x != null) {
2899						Data data = Data.parse(x);
2900						data.submit(options);
2901						sendIqPacket(account, mIqGenerator.publishPubsubConfiguration(jid, node, data), new OnIqPacketReceived() {
2902							@Override
2903							public void onIqPacketReceived(Account account, IqPacket packet) {
2904								if (packet.getType() == IqPacket.TYPE.RESULT && callback != null) {
2905									Log.d(Config.LOGTAG,account.getJid().asBareJid()+": successfully changed node configuration for node "+node);
2906									callback.onPushSucceeded();
2907								} else if (packet.getType() == IqPacket.TYPE.ERROR && callback != null) {
2908									callback.onPushFailed();
2909								}
2910							}
2911						});
2912					} else if (callback != null) {
2913						callback.onPushFailed();
2914					}
2915				} else if (packet.getType() == IqPacket.TYPE.ERROR && callback != null) {
2916					callback.onPushFailed();
2917				}
2918			}
2919		});
2920	}
2921
2922	public void pushConferenceConfiguration(final Conversation conversation, final Bundle options, final OnConfigurationPushed callback) {
2923	    if (options.getString("muc#roomconfig_whois","moderators").equals("anyone")) {
2924	        conversation.setAttribute("accept_non_anonymous",true);
2925            updateConversation(conversation);
2926        }
2927		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
2928		request.setTo(conversation.getJid().asBareJid());
2929		request.query("http://jabber.org/protocol/muc#owner");
2930		sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
2931			@Override
2932			public void onIqPacketReceived(Account account, IqPacket packet) {
2933				if (packet.getType() == IqPacket.TYPE.RESULT) {
2934					Data data = Data.parse(packet.query().findChild("x", Namespace.DATA));
2935					data.submit(options);
2936					Log.d(Config.LOGTAG,data.toString());
2937					IqPacket set = new IqPacket(IqPacket.TYPE.SET);
2938					set.setTo(conversation.getJid().asBareJid());
2939					set.query("http://jabber.org/protocol/muc#owner").addChild(data);
2940					sendIqPacket(account, set, new OnIqPacketReceived() {
2941						@Override
2942						public void onIqPacketReceived(Account account, IqPacket packet) {
2943							if (callback != null) {
2944								if (packet.getType() == IqPacket.TYPE.RESULT) {
2945									callback.onPushSucceeded();
2946								} else {
2947									callback.onPushFailed();
2948								}
2949							}
2950						}
2951					});
2952				} else {
2953					if (callback != null) {
2954						callback.onPushFailed();
2955					}
2956				}
2957			}
2958		});
2959	}
2960
2961	public void pushSubjectToConference(final Conversation conference, final String subject) {
2962		MessagePacket packet = this.getMessageGenerator().conferenceSubject(conference, StringUtils.nullOnEmpty(subject));
2963		this.sendMessagePacket(conference.getAccount(), packet);
2964	}
2965
2966	public void changeAffiliationInConference(final Conversation conference, Jid user, final MucOptions.Affiliation affiliation, final OnAffiliationChanged callback) {
2967		final Jid jid = user.asBareJid();
2968		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jid, affiliation.toString());
2969		sendIqPacket(conference.getAccount(), request, new OnIqPacketReceived() {
2970			@Override
2971			public void onIqPacketReceived(Account account, IqPacket packet) {
2972				if (packet.getType() == IqPacket.TYPE.RESULT) {
2973					conference.getMucOptions().changeAffiliation(jid, affiliation);
2974					getAvatarService().clear(conference);
2975					callback.onAffiliationChangedSuccessful(jid);
2976				} else {
2977					callback.onAffiliationChangeFailed(jid, R.string.could_not_change_affiliation);
2978				}
2979			}
2980		});
2981	}
2982
2983	public void changeAffiliationsInConference(final Conversation conference, MucOptions.Affiliation before, MucOptions.Affiliation after) {
2984		List<Jid> jids = new ArrayList<>();
2985		for (MucOptions.User user : conference.getMucOptions().getUsers()) {
2986			if (user.getAffiliation() == before && user.getRealJid() != null) {
2987				jids.add(user.getRealJid());
2988			}
2989		}
2990		IqPacket request = this.mIqGenerator.changeAffiliation(conference, jids, after.toString());
2991		sendIqPacket(conference.getAccount(), request, mDefaultIqHandler);
2992	}
2993
2994	public void changeRoleInConference(final Conversation conference, final String nick, MucOptions.Role role) {
2995		IqPacket request = this.mIqGenerator.changeRole(conference, nick, role.toString());
2996		Log.d(Config.LOGTAG, request.toString());
2997		sendIqPacket(conference.getAccount(), request, (account, packet) -> {
2998            if (packet.getType() != IqPacket.TYPE.RESULT) {
2999                Log.d(Config.LOGTAG,account.getJid().asBareJid()+" unable to change role of "+nick);
3000            }
3001        });
3002	}
3003
3004    public void destroyRoom(final Conversation conversation, final OnRoomDestroy callback) {
3005        IqPacket request = new IqPacket(IqPacket.TYPE.SET);
3006        request.setTo(conversation.getJid().asBareJid());
3007        request.query("http://jabber.org/protocol/muc#owner").addChild("destroy");
3008        sendIqPacket(conversation.getAccount(), request, new OnIqPacketReceived() {
3009            @Override
3010            public void onIqPacketReceived(Account account, IqPacket packet) {
3011                if (packet.getType() == IqPacket.TYPE.RESULT) {
3012                    if (callback != null) {
3013                        callback.onRoomDestroySucceeded();
3014                    }
3015                } else if (packet.getType() == IqPacket.TYPE.ERROR) {
3016                    if (callback != null) {
3017                        callback.onRoomDestroyFailed();
3018                    }
3019                }
3020            }
3021        });
3022    }
3023
3024	private void disconnect(Account account, boolean force) {
3025		if ((account.getStatus() == Account.State.ONLINE)
3026				|| (account.getStatus() == Account.State.DISABLED)) {
3027			final XmppConnection connection = account.getXmppConnection();
3028			if (!force) {
3029				List<Conversation> conversations = getConversations();
3030				for (Conversation conversation : conversations) {
3031					if (conversation.getAccount() == account) {
3032						if (conversation.getMode() == Conversation.MODE_MULTI) {
3033							leaveMuc(conversation, true);
3034						}
3035					}
3036				}
3037				sendOfflinePresence(account);
3038			}
3039			connection.disconnect(force);
3040		}
3041	}
3042
3043	@Override
3044	public IBinder onBind(Intent intent) {
3045		return mBinder;
3046	}
3047
3048	public void updateMessage(Message message) {
3049		updateMessage(message, true);
3050	}
3051
3052	public void updateMessage(Message message, boolean includeBody) {
3053		databaseBackend.updateMessage(message, includeBody);
3054		updateConversationUi();
3055	}
3056
3057	public void updateMessage(Message message, String uuid) {
3058		if (!databaseBackend.updateMessage(message, uuid)) {
3059            Log.e(Config.LOGTAG,"error updated message in DB after edit");
3060        }
3061		updateConversationUi();
3062	}
3063
3064	protected void syncDirtyContacts(Account account) {
3065		for (Contact contact : account.getRoster().getContacts()) {
3066			if (contact.getOption(Contact.Options.DIRTY_PUSH)) {
3067				pushContactToServer(contact);
3068			}
3069			if (contact.getOption(Contact.Options.DIRTY_DELETE)) {
3070				deleteContactOnServer(contact);
3071			}
3072		}
3073	}
3074
3075	public void createContact(Contact contact, boolean autoGrant) {
3076		if (autoGrant) {
3077			contact.setOption(Contact.Options.PREEMPTIVE_GRANT);
3078			contact.setOption(Contact.Options.ASKING);
3079		}
3080		pushContactToServer(contact);
3081	}
3082
3083	public void pushContactToServer(final Contact contact) {
3084		contact.resetOption(Contact.Options.DIRTY_DELETE);
3085		contact.setOption(Contact.Options.DIRTY_PUSH);
3086		final Account account = contact.getAccount();
3087		if (account.getStatus() == Account.State.ONLINE) {
3088			final boolean ask = contact.getOption(Contact.Options.ASKING);
3089			final boolean sendUpdates = contact
3090					.getOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST)
3091					&& contact.getOption(Contact.Options.PREEMPTIVE_GRANT);
3092			final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
3093			iq.query(Namespace.ROSTER).addChild(contact.asElement());
3094			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
3095			if (sendUpdates) {
3096				sendPresencePacket(account, mPresenceGenerator.sendPresenceUpdatesTo(contact));
3097			}
3098			if (ask) {
3099				sendPresencePacket(account, mPresenceGenerator.requestPresenceUpdatesFrom(contact));
3100			}
3101		} else {
3102			syncRoster(contact.getAccount());
3103		}
3104	}
3105
3106	public void publishMucAvatar(final Conversation conversation, final Uri image, final OnAvatarPublication callback) {
3107		new Thread(() -> {
3108			final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
3109			final int size = Config.AVATAR_SIZE;
3110			final Avatar avatar = getFileBackend().getPepAvatar(image, size, format);
3111			if (avatar != null) {
3112				if (!getFileBackend().save(avatar)) {
3113					callback.onAvatarPublicationFailed(R.string.error_saving_avatar);
3114					return;
3115				}
3116				avatar.owner = conversation.getJid().asBareJid();
3117				publishMucAvatar(conversation, avatar, callback);
3118			} else {
3119				callback.onAvatarPublicationFailed(R.string.error_publish_avatar_converting);
3120			}
3121		}).start();
3122	}
3123
3124	public void publishAvatar(final Account account, final Uri image, final OnAvatarPublication callback) {
3125		new Thread(() -> {
3126			final Bitmap.CompressFormat format = Config.AVATAR_FORMAT;
3127			final int size = Config.AVATAR_SIZE;
3128			final Avatar avatar = getFileBackend().getPepAvatar(image, size, format);
3129			if (avatar != null) {
3130				if (!getFileBackend().save(avatar)) {
3131					Log.d(Config.LOGTAG,"unable to save vcard");
3132					callback.onAvatarPublicationFailed(R.string.error_saving_avatar);
3133					return;
3134				}
3135				publishAvatar(account, avatar, callback);
3136			} else {
3137				callback.onAvatarPublicationFailed(R.string.error_publish_avatar_converting);
3138			}
3139		}).start();
3140
3141	}
3142
3143	private void publishMucAvatar(Conversation conversation, Avatar avatar, OnAvatarPublication callback) {
3144		final IqPacket retrieve = mIqGenerator.retrieveVcardAvatar(avatar);
3145		sendIqPacket(conversation.getAccount(), retrieve, (account, response) -> {
3146			boolean itemNotFound = response.getType() == IqPacket.TYPE.ERROR && response.hasChild("error") && response.findChild("error").hasChild("item-not-found");
3147			if (response.getType() == IqPacket.TYPE.RESULT || itemNotFound) {
3148				Element vcard = response.findChild("vCard", "vcard-temp");
3149				if (vcard == null) {
3150					vcard = new Element("vCard", "vcard-temp");
3151				}
3152				Element photo = vcard.findChild("PHOTO");
3153				if (photo == null) {
3154					photo = vcard.addChild("PHOTO");
3155				}
3156				photo.clearChildren();
3157				photo.addChild("TYPE").setContent(avatar.type);
3158				photo.addChild("BINVAL").setContent(avatar.image);
3159				IqPacket publication = new IqPacket(IqPacket.TYPE.SET);
3160				publication.setTo(conversation.getJid().asBareJid());
3161				publication.addChild(vcard);
3162				sendIqPacket(account, publication, (a1, publicationResponse) -> {
3163					if (publicationResponse.getType() == IqPacket.TYPE.RESULT) {
3164						callback.onAvatarPublicationSucceeded();
3165					} else {
3166						Log.d(Config.LOGTAG, "failed to publish vcard " + publicationResponse.getError());
3167						callback.onAvatarPublicationFailed(R.string.error_publish_avatar_server_reject);
3168					}
3169				});
3170			} else {
3171				Log.d(Config.LOGTAG, "failed to request vcard " + response.toString());
3172				callback.onAvatarPublicationFailed(R.string.error_publish_avatar_no_server_support);
3173			}
3174		});
3175	}
3176
3177    public void publishAvatar(Account account, final Avatar avatar, final OnAvatarPublication callback) {
3178        final Bundle options;
3179        if (account.getXmppConnection().getFeatures().pepPublishOptions()) {
3180            options = PublishOptions.openAccess();
3181        } else {
3182            options = null;
3183        }
3184        publishAvatar(account, avatar, options, true, callback);
3185    }
3186
3187	public void publishAvatar(Account account, final Avatar avatar, final Bundle options, final boolean retry, final OnAvatarPublication callback) {
3188        Log.d(Config.LOGTAG,account.getJid().asBareJid()+": publishing avatar. options="+options);
3189		IqPacket packet = this.mIqGenerator.publishAvatar(avatar, options);
3190		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
3191
3192			@Override
3193			public void onIqPacketReceived(Account account, IqPacket result) {
3194				if (result.getType() == IqPacket.TYPE.RESULT) {
3195                    publishAvatarMetadata(account, avatar, options,true, callback);
3196                } else if (retry && PublishOptions.preconditionNotMet(result)) {
3197				    pushNodeConfiguration(account, "urn:xmpp:avatar:data", options, new OnConfigurationPushed() {
3198                        @Override
3199                        public void onPushSucceeded() {
3200                            Log.d(Config.LOGTAG,account.getJid().asBareJid()+": changed node configuration for avatar node");
3201                            publishAvatar(account, avatar, options, false, callback);
3202                        }
3203
3204                        @Override
3205                        public void onPushFailed() {
3206                            Log.d(Config.LOGTAG,account.getJid().asBareJid()+": unable to change node configuration for avatar node");
3207                            publishAvatar(account, avatar, null, false, callback);
3208                        }
3209                    });
3210				} else {
3211					Element error = result.findChild("error");
3212					Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": server rejected avatar " + (avatar.size / 1024) + "KiB " + (error != null ? error.toString() : ""));
3213					if (callback != null) {
3214						callback.onAvatarPublicationFailed(R.string.error_publish_avatar_server_reject);
3215					}
3216				}
3217			}
3218		});
3219	}
3220
3221	public void publishAvatarMetadata(Account account, final Avatar avatar, final Bundle options, final boolean retry, final OnAvatarPublication callback) {
3222        final IqPacket packet = XmppConnectionService.this.mIqGenerator.publishAvatarMetadata(avatar, options);
3223        sendIqPacket(account, packet, new OnIqPacketReceived() {
3224            @Override
3225            public void onIqPacketReceived(Account account, IqPacket result) {
3226                if (result.getType() == IqPacket.TYPE.RESULT) {
3227                    if (account.setAvatar(avatar.getFilename())) {
3228                        getAvatarService().clear(account);
3229                        databaseBackend.updateAccount(account);
3230                        notifyAccountAvatarHasChanged(account);
3231                    }
3232                    Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": published avatar " + (avatar.size / 1024) + "KiB");
3233                    if (callback != null) {
3234                        callback.onAvatarPublicationSucceeded();
3235                    }
3236                } else if (retry && PublishOptions.preconditionNotMet(result)) {
3237                    pushNodeConfiguration(account, "urn:xmpp:avatar:metadata", options, new OnConfigurationPushed() {
3238                        @Override
3239                        public void onPushSucceeded() {
3240                            Log.d(Config.LOGTAG,account.getJid().asBareJid()+": changed node configuration for avatar meta data node");
3241                            publishAvatarMetadata(account, avatar, options,false, callback);
3242                        }
3243
3244                        @Override
3245                        public void onPushFailed() {
3246                            Log.d(Config.LOGTAG,account.getJid().asBareJid()+": unable to change node configuration for avatar meta data node");
3247                            publishAvatarMetadata(account, avatar,  null,false, callback);
3248                        }
3249                    });
3250                } else {
3251                    if (callback != null) {
3252                        callback.onAvatarPublicationFailed(R.string.error_publish_avatar_server_reject);
3253                    }
3254                }
3255            }
3256        });
3257    }
3258
3259	public void republishAvatarIfNeeded(Account account) {
3260		if (account.getAxolotlService().isPepBroken()) {
3261			Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": skipping republication of avatar because pep is broken");
3262			return;
3263		}
3264		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
3265		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
3266
3267			private Avatar parseAvatar(IqPacket packet) {
3268				Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub");
3269				if (pubsub != null) {
3270					Element items = pubsub.findChild("items");
3271					if (items != null) {
3272						return Avatar.parseMetadata(items);
3273					}
3274				}
3275				return null;
3276			}
3277
3278			private boolean errorIsItemNotFound(IqPacket packet) {
3279				Element error = packet.findChild("error");
3280				return packet.getType() == IqPacket.TYPE.ERROR
3281						&& error != null
3282						&& error.hasChild("item-not-found");
3283			}
3284
3285			@Override
3286			public void onIqPacketReceived(Account account, IqPacket packet) {
3287				if (packet.getType() == IqPacket.TYPE.RESULT || errorIsItemNotFound(packet)) {
3288					Avatar serverAvatar = parseAvatar(packet);
3289					if (serverAvatar == null && account.getAvatar() != null) {
3290						Avatar avatar = fileBackend.getStoredPepAvatar(account.getAvatar());
3291						if (avatar != null) {
3292							Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": avatar on server was null. republishing");
3293							publishAvatar(account, fileBackend.getStoredPepAvatar(account.getAvatar()), null);
3294						} else {
3295							Log.e(Config.LOGTAG, account.getJid().asBareJid() + ": error rereading avatar");
3296						}
3297					}
3298				}
3299			}
3300		});
3301	}
3302
3303	public void fetchAvatar(Account account, Avatar avatar) {
3304		fetchAvatar(account, avatar, null);
3305	}
3306
3307	public void fetchAvatar(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
3308		final String KEY = generateFetchKey(account, avatar);
3309		synchronized (this.mInProgressAvatarFetches) {
3310		    if (mInProgressAvatarFetches.add(KEY)) {
3311                switch (avatar.origin) {
3312                    case PEP:
3313                        this.mInProgressAvatarFetches.add(KEY);
3314                        fetchAvatarPep(account, avatar, callback);
3315                        break;
3316                    case VCARD:
3317                        this.mInProgressAvatarFetches.add(KEY);
3318                        fetchAvatarVcard(account, avatar, callback);
3319                        break;
3320                }
3321            } else if (avatar.origin == Avatar.Origin.PEP) {
3322		        mOmittedPepAvatarFetches.add(KEY);
3323            } else {
3324		        Log.d(Config.LOGTAG,account.getJid().asBareJid()+": already fetching "+avatar.origin+" avatar for "+avatar.owner);
3325            }
3326		}
3327	}
3328
3329	private void fetchAvatarPep(Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
3330		IqPacket packet = this.mIqGenerator.retrievePepAvatar(avatar);
3331		sendIqPacket(account, packet, (a, result) -> {
3332			synchronized (mInProgressAvatarFetches) {
3333				mInProgressAvatarFetches.remove(generateFetchKey(a, avatar));
3334			}
3335			final String ERROR = a.getJid().asBareJid() + ": fetching avatar for " + avatar.owner + " failed ";
3336			if (result.getType() == IqPacket.TYPE.RESULT) {
3337				avatar.image = mIqParser.avatarData(result);
3338				if (avatar.image != null) {
3339					if (getFileBackend().save(avatar)) {
3340						if (a.getJid().asBareJid().equals(avatar.owner)) {
3341							if (a.setAvatar(avatar.getFilename())) {
3342								databaseBackend.updateAccount(a);
3343							}
3344							getAvatarService().clear(a);
3345							updateConversationUi();
3346							updateAccountUi();
3347						} else {
3348							Contact contact = a.getRoster().getContact(avatar.owner);
3349							if (contact.setAvatar(avatar)) {
3350								syncRoster(account);
3351								getAvatarService().clear(contact);
3352								updateConversationUi();
3353								updateRosterUi();
3354							}
3355						}
3356						if (callback != null) {
3357							callback.success(avatar);
3358						}
3359						Log.d(Config.LOGTAG, a.getJid().asBareJid()
3360								+ ": successfully fetched pep avatar for " + avatar.owner);
3361						return;
3362					}
3363				} else {
3364
3365					Log.d(Config.LOGTAG, ERROR + "(parsing error)");
3366				}
3367			} else {
3368				Element error = result.findChild("error");
3369				if (error == null) {
3370					Log.d(Config.LOGTAG, ERROR + "(server error)");
3371				} else {
3372					Log.d(Config.LOGTAG, ERROR + error.toString());
3373				}
3374			}
3375			if (callback != null) {
3376				callback.error(0, null);
3377			}
3378
3379		});
3380	}
3381
3382	private void fetchAvatarVcard(final Account account, final Avatar avatar, final UiCallback<Avatar> callback) {
3383		IqPacket packet = this.mIqGenerator.retrieveVcardAvatar(avatar);
3384		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
3385			@Override
3386			public void onIqPacketReceived(Account account, IqPacket packet) {
3387			    final boolean previouslyOmittedPepFetch;
3388				synchronized (mInProgressAvatarFetches) {
3389				    final String KEY = generateFetchKey(account, avatar);
3390					mInProgressAvatarFetches.remove(KEY);
3391					previouslyOmittedPepFetch = mOmittedPepAvatarFetches.remove(KEY);
3392				}
3393				if (packet.getType() == IqPacket.TYPE.RESULT) {
3394					Element vCard = packet.findChild("vCard", "vcard-temp");
3395					Element photo = vCard != null ? vCard.findChild("PHOTO") : null;
3396					String image = photo != null ? photo.findChildContent("BINVAL") : null;
3397					if (image != null) {
3398						avatar.image = image;
3399						if (getFileBackend().save(avatar)) {
3400							Log.d(Config.LOGTAG, account.getJid().asBareJid()
3401									+ ": successfully fetched vCard avatar for " + avatar.owner+" omittedPep="+previouslyOmittedPepFetch);
3402							if (avatar.owner.isBareJid()) {
3403								if (account.getJid().asBareJid().equals(avatar.owner) && account.getAvatar() == null) {
3404									Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": had no avatar. replacing with vcard");
3405									account.setAvatar(avatar.getFilename());
3406									databaseBackend.updateAccount(account);
3407									getAvatarService().clear(account);
3408									updateAccountUi();
3409								} else {
3410									Contact contact = account.getRoster().getContact(avatar.owner);
3411									if (contact.setAvatar(avatar, previouslyOmittedPepFetch)) {
3412										syncRoster(account);
3413										getAvatarService().clear(contact);
3414										updateRosterUi();
3415									}
3416								}
3417								updateConversationUi();
3418							} else {
3419								Conversation conversation = find(account, avatar.owner.asBareJid());
3420								if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
3421									MucOptions.User user = conversation.getMucOptions().findUserByFullJid(avatar.owner);
3422									if (user != null) {
3423										if (user.setAvatar(avatar)) {
3424											getAvatarService().clear(user);
3425											updateConversationUi();
3426											updateMucRosterUi();
3427										}
3428										if (user.getRealJid() != null) {
3429										    Contact contact = account.getRoster().getContact(user.getRealJid());
3430										    if (contact.setAvatar(avatar)) {
3431                                                syncRoster(account);
3432                                                getAvatarService().clear(contact);
3433                                                updateRosterUi();
3434                                            }
3435                                        }
3436									}
3437								}
3438							}
3439						}
3440					}
3441				}
3442			}
3443		});
3444	}
3445
3446	public void checkForAvatar(Account account, final UiCallback<Avatar> callback) {
3447		IqPacket packet = this.mIqGenerator.retrieveAvatarMetaData(null);
3448		this.sendIqPacket(account, packet, new OnIqPacketReceived() {
3449
3450			@Override
3451			public void onIqPacketReceived(Account account, IqPacket packet) {
3452				if (packet.getType() == IqPacket.TYPE.RESULT) {
3453					Element pubsub = packet.findChild("pubsub", "http://jabber.org/protocol/pubsub");
3454					if (pubsub != null) {
3455						Element items = pubsub.findChild("items");
3456						if (items != null) {
3457							Avatar avatar = Avatar.parseMetadata(items);
3458							if (avatar != null) {
3459								avatar.owner = account.getJid().asBareJid();
3460								if (fileBackend.isAvatarCached(avatar)) {
3461									if (account.setAvatar(avatar.getFilename())) {
3462										databaseBackend.updateAccount(account);
3463									}
3464									getAvatarService().clear(account);
3465									callback.success(avatar);
3466								} else {
3467									fetchAvatarPep(account, avatar, callback);
3468								}
3469								return;
3470							}
3471						}
3472					}
3473				}
3474				callback.error(0, null);
3475			}
3476		});
3477	}
3478
3479	public void notifyAccountAvatarHasChanged(final Account account) {
3480	    final XmppConnection connection = account.getXmppConnection();
3481	    if (connection != null && connection.getFeatures().bookmarksConversion()) {
3482            Log.d(Config.LOGTAG,account.getJid().asBareJid()+": avatar changed. resending presence to online group chats");
3483            for(Conversation conversation : conversations) {
3484                if (conversation.getAccount() == account && conversation.getMode() == Conversational.MODE_MULTI) {
3485                    final MucOptions mucOptions = conversation.getMucOptions();
3486                    if (mucOptions.online()) {
3487                        PresencePacket packet = mPresenceGenerator.selfPresence(account, Presence.Status.ONLINE, mucOptions.nonanonymous());
3488                        packet.setTo(mucOptions.getSelf().getFullJid());
3489                        connection.sendPresencePacket(packet);
3490                    }
3491                }
3492            }
3493        }
3494    }
3495
3496	public void deleteContactOnServer(Contact contact) {
3497		contact.resetOption(Contact.Options.PREEMPTIVE_GRANT);
3498		contact.resetOption(Contact.Options.DIRTY_PUSH);
3499		contact.setOption(Contact.Options.DIRTY_DELETE);
3500		Account account = contact.getAccount();
3501		if (account.getStatus() == Account.State.ONLINE) {
3502			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
3503			Element item = iq.query(Namespace.ROSTER).addChild("item");
3504			item.setAttribute("jid", contact.getJid().toString());
3505			item.setAttribute("subscription", "remove");
3506			account.getXmppConnection().sendIqPacket(iq, mDefaultIqHandler);
3507		}
3508	}
3509
3510	public void updateConversation(final Conversation conversation) {
3511		mDatabaseWriterExecutor.execute(() -> databaseBackend.updateConversation(conversation));
3512	}
3513
3514	private void reconnectAccount(final Account account, final boolean force, final boolean interactive) {
3515		synchronized (account) {
3516			XmppConnection connection = account.getXmppConnection();
3517			if (connection == null) {
3518				connection = createConnection(account);
3519				account.setXmppConnection(connection);
3520			}
3521			boolean hasInternet = hasInternetConnection();
3522			if (account.isEnabled() && hasInternet) {
3523				if (!force) {
3524					disconnect(account, false);
3525				}
3526				Thread thread = new Thread(connection);
3527				connection.setInteractive(interactive);
3528				connection.prepareNewConnection();
3529				connection.interrupt();
3530				thread.start();
3531				scheduleWakeUpCall(Config.CONNECT_DISCO_TIMEOUT, account.getUuid().hashCode());
3532			} else {
3533				disconnect(account, force || account.getTrueStatus().isError() || !hasInternet);
3534				account.getRoster().clearPresences();
3535				connection.resetEverything();
3536				final AxolotlService axolotlService = account.getAxolotlService();
3537				if (axolotlService != null) {
3538					axolotlService.resetBrokenness();
3539				}
3540				if (!hasInternet) {
3541					account.setStatus(Account.State.NO_INTERNET);
3542				}
3543			}
3544		}
3545	}
3546
3547	public void reconnectAccountInBackground(final Account account) {
3548		new Thread(() -> reconnectAccount(account, false, true)).start();
3549	}
3550
3551	public void invite(Conversation conversation, Jid contact) {
3552		Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": inviting " + contact + " to " + conversation.getJid().asBareJid());
3553		MessagePacket packet = mMessageGenerator.invite(conversation, contact);
3554		sendMessagePacket(conversation.getAccount(), packet);
3555	}
3556
3557	public void directInvite(Conversation conversation, Jid jid) {
3558		MessagePacket packet = mMessageGenerator.directInvite(conversation, jid);
3559		sendMessagePacket(conversation.getAccount(), packet);
3560	}
3561
3562	public void resetSendingToWaiting(Account account) {
3563		for (Conversation conversation : getConversations()) {
3564			if (conversation.getAccount() == account) {
3565				conversation.findUnsentTextMessages(message -> markMessage(message, Message.STATUS_WAITING));
3566			}
3567		}
3568	}
3569
3570	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status) {
3571		return markMessage(account, recipient, uuid, status, null);
3572	}
3573
3574	public Message markMessage(final Account account, final Jid recipient, final String uuid, final int status, String errorMessage) {
3575		if (uuid == null) {
3576			return null;
3577		}
3578		for (Conversation conversation : getConversations()) {
3579			if (conversation.getJid().asBareJid().equals(recipient) && conversation.getAccount() == account) {
3580				final Message message = conversation.findSentMessageWithUuidOrRemoteId(uuid);
3581				if (message != null) {
3582					markMessage(message, status, errorMessage);
3583				}
3584				return message;
3585			}
3586		}
3587		return null;
3588	}
3589
3590	public boolean markMessage(Conversation conversation, String uuid, int status, String serverMessageId) {
3591		if (uuid == null) {
3592			return false;
3593		} else {
3594			Message message = conversation.findSentMessageWithUuid(uuid);
3595			if (message != null) {
3596				if (message.getServerMsgId() == null) {
3597					message.setServerMsgId(serverMessageId);
3598				}
3599				markMessage(message, status);
3600				return true;
3601			} else {
3602				return false;
3603			}
3604		}
3605	}
3606
3607	public void markMessage(Message message, int status) {
3608		markMessage(message, status, null);
3609	}
3610
3611
3612	public void markMessage(Message message, int status, String errorMessage) {
3613		final int c = message.getStatus();
3614		if (status == Message.STATUS_SEND_FAILED && (c == Message.STATUS_SEND_RECEIVED || c == Message.STATUS_SEND_DISPLAYED)) {
3615			return;
3616		}
3617		if (status == Message.STATUS_SEND_RECEIVED && c == Message.STATUS_SEND_DISPLAYED) {
3618			return;
3619		}
3620		message.setErrorMessage(errorMessage);
3621		message.setStatus(status);
3622		databaseBackend.updateMessage(message, false);
3623		updateConversationUi();
3624	}
3625
3626	private SharedPreferences getPreferences() {
3627		return PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
3628	}
3629
3630	public long getAutomaticMessageDeletionDate() {
3631		final long timeout = getLongPreference(SettingsActivity.AUTOMATIC_MESSAGE_DELETION, R.integer.automatic_message_deletion);
3632		return timeout == 0 ? timeout : (System.currentTimeMillis() - (timeout * 1000));
3633	}
3634
3635	public long getLongPreference(String name, @IntegerRes int res) {
3636		long defaultValue = getResources().getInteger(res);
3637		try {
3638			return Long.parseLong(getPreferences().getString(name, String.valueOf(defaultValue)));
3639		} catch (NumberFormatException e) {
3640			return defaultValue;
3641		}
3642	}
3643
3644	public boolean getBooleanPreference(String name, @BoolRes int res) {
3645		return getPreferences().getBoolean(name, getResources().getBoolean(res));
3646	}
3647
3648	public boolean confirmMessages() {
3649		return getBooleanPreference("confirm_messages", R.bool.confirm_messages);
3650	}
3651
3652	public boolean allowMessageCorrection() {
3653		return getBooleanPreference("allow_message_correction", R.bool.allow_message_correction);
3654	}
3655
3656	public boolean sendChatStates() {
3657		return getBooleanPreference("chat_states", R.bool.chat_states);
3658	}
3659
3660	private boolean synchronizeWithBookmarks() {
3661		return getBooleanPreference("autojoin", R.bool.autojoin);
3662	}
3663
3664	public boolean indicateReceived() {
3665		return getBooleanPreference("indicate_received", R.bool.indicate_received);
3666	}
3667
3668	public boolean useTorToConnect() {
3669		return QuickConversationsService.isConversations() && getBooleanPreference("use_tor", R.bool.use_tor);
3670	}
3671
3672	public boolean showExtendedConnectionOptions() {
3673		return QuickConversationsService.isConversations() && getBooleanPreference("show_connection_options", R.bool.show_connection_options);
3674	}
3675
3676	public boolean broadcastLastActivity() {
3677		return getBooleanPreference(SettingsActivity.BROADCAST_LAST_ACTIVITY, R.bool.last_activity);
3678	}
3679
3680	public int unreadCount() {
3681		int count = 0;
3682		for (Conversation conversation : getConversations()) {
3683			count += conversation.unreadCount();
3684		}
3685		return count;
3686	}
3687
3688
3689	private <T> List<T> threadSafeList(Set<T> set) {
3690		synchronized (LISTENER_LOCK) {
3691			return set.size() == 0 ? Collections.emptyList() : new ArrayList<>(set);
3692		}
3693	}
3694
3695	public void showErrorToastInUi(int resId) {
3696		for (OnShowErrorToast listener : threadSafeList(this.mOnShowErrorToasts)) {
3697			listener.onShowErrorToast(resId);
3698		}
3699	}
3700
3701	public void updateConversationUi() {
3702		for (OnConversationUpdate listener : threadSafeList(this.mOnConversationUpdates)) {
3703			listener.onConversationUpdate();
3704		}
3705	}
3706
3707	public void updateAccountUi() {
3708		for (OnAccountUpdate listener : threadSafeList(this.mOnAccountUpdates)) {
3709			listener.onAccountUpdate();
3710		}
3711	}
3712
3713	public void updateRosterUi() {
3714		for (OnRosterUpdate listener : threadSafeList(this.mOnRosterUpdates)) {
3715			listener.onRosterUpdate();
3716		}
3717	}
3718
3719	public boolean displayCaptchaRequest(Account account, String id, Data data, Bitmap captcha) {
3720		if (mOnCaptchaRequested.size() > 0) {
3721			DisplayMetrics metrics = getApplicationContext().getResources().getDisplayMetrics();
3722			Bitmap scaled = Bitmap.createScaledBitmap(captcha, (int) (captcha.getWidth() * metrics.scaledDensity),
3723					(int) (captcha.getHeight() * metrics.scaledDensity), false);
3724			for (OnCaptchaRequested listener : threadSafeList(this.mOnCaptchaRequested)) {
3725				listener.onCaptchaRequested(account, id, data, scaled);
3726			}
3727			return true;
3728		}
3729		return false;
3730	}
3731
3732	public void updateBlocklistUi(final OnUpdateBlocklist.Status status) {
3733		for (OnUpdateBlocklist listener : threadSafeList(this.mOnUpdateBlocklist)) {
3734			listener.OnUpdateBlocklist(status);
3735		}
3736	}
3737
3738	public void updateMucRosterUi() {
3739		for (OnMucRosterUpdate listener : threadSafeList(this.mOnMucRosterUpdate)) {
3740			listener.onMucRosterUpdate();
3741		}
3742	}
3743
3744	public void keyStatusUpdated(AxolotlService.FetchStatus report) {
3745		for (OnKeyStatusUpdated listener : threadSafeList(this.mOnKeyStatusUpdated)) {
3746			listener.onKeyStatusUpdated(report);
3747		}
3748	}
3749
3750	public Account findAccountByJid(final Jid accountJid) {
3751		for (Account account : this.accounts) {
3752			if (account.getJid().asBareJid().equals(accountJid.asBareJid())) {
3753				return account;
3754			}
3755		}
3756		return null;
3757	}
3758
3759	public Account findAccountByUuid(final String uuid) {
3760		for(Account account : this.accounts) {
3761			if (account.getUuid().equals(uuid)) {
3762				return account;
3763			}
3764		}
3765		return null;
3766	}
3767
3768	public Conversation findConversationByUuid(String uuid) {
3769		for (Conversation conversation : getConversations()) {
3770			if (conversation.getUuid().equals(uuid)) {
3771				return conversation;
3772			}
3773		}
3774		return null;
3775	}
3776
3777	public Conversation findUniqueConversationByJid(XmppUri xmppUri) {
3778		List<Conversation> findings = new ArrayList<>();
3779		for (Conversation c : getConversations()) {
3780			if (c.getAccount().isEnabled() && c.getJid().asBareJid().equals(xmppUri.getJid()) && ((c.getMode() == Conversational.MODE_MULTI) == xmppUri.isAction(XmppUri.ACTION_JOIN))) {
3781				findings.add(c);
3782			}
3783		}
3784		return findings.size() == 1 ? findings.get(0) : null;
3785	}
3786
3787	public boolean markRead(final Conversation conversation, boolean dismiss) {
3788		return markRead(conversation, null, dismiss).size() > 0;
3789	}
3790
3791	public void markRead(final Conversation conversation) {
3792		markRead(conversation, null, true);
3793	}
3794
3795	public List<Message> markRead(final Conversation conversation, String upToUuid, boolean dismiss) {
3796		if (dismiss) {
3797			mNotificationService.clear(conversation);
3798		}
3799		final List<Message> readMessages = conversation.markRead(upToUuid);
3800		if (readMessages.size() > 0) {
3801			Runnable runnable = () -> {
3802				for (Message message : readMessages) {
3803					databaseBackend.updateMessage(message, false);
3804				}
3805			};
3806			mDatabaseWriterExecutor.execute(runnable);
3807			updateUnreadCountBadge();
3808			return readMessages;
3809		} else {
3810			return readMessages;
3811		}
3812	}
3813
3814	public synchronized void updateUnreadCountBadge() {
3815		int count = unreadCount();
3816		if (unreadCount != count) {
3817			Log.d(Config.LOGTAG, "update unread count to " + count);
3818			if (count > 0) {
3819				ShortcutBadger.applyCount(getApplicationContext(), count);
3820			} else {
3821				ShortcutBadger.removeCount(getApplicationContext());
3822			}
3823			unreadCount = count;
3824		}
3825	}
3826
3827	public void sendReadMarker(final Conversation conversation, String upToUuid) {
3828		final boolean isPrivateAndNonAnonymousMuc = conversation.getMode() == Conversation.MODE_MULTI && conversation.isPrivateAndNonAnonymous();
3829		final List<Message> readMessages = this.markRead(conversation, upToUuid, true);
3830		if (readMessages.size() > 0) {
3831			updateConversationUi();
3832		}
3833		final Message markable = Conversation.getLatestMarkableMessage(readMessages, isPrivateAndNonAnonymousMuc);
3834		if (confirmMessages()
3835				&& markable != null
3836				&& (markable.trusted() || isPrivateAndNonAnonymousMuc)
3837				&& markable.getRemoteMsgId() != null) {
3838			Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": sending read marker to " + markable.getCounterpart().toString());
3839			Account account = conversation.getAccount();
3840			final Jid to = markable.getCounterpart();
3841			final boolean groupChat = conversation.getMode() == Conversation.MODE_MULTI;
3842			MessagePacket packet = mMessageGenerator.confirm(account, to, markable.getRemoteMsgId(), markable.getCounterpart(), groupChat);
3843			this.sendMessagePacket(conversation.getAccount(), packet);
3844		}
3845	}
3846
3847	public SecureRandom getRNG() {
3848		return this.mRandom;
3849	}
3850
3851	public MemorizingTrustManager getMemorizingTrustManager() {
3852		return this.mMemorizingTrustManager;
3853	}
3854
3855	public void setMemorizingTrustManager(MemorizingTrustManager trustManager) {
3856		this.mMemorizingTrustManager = trustManager;
3857	}
3858
3859	public void updateMemorizingTrustmanager() {
3860		final MemorizingTrustManager tm;
3861		final boolean dontTrustSystemCAs = getBooleanPreference("dont_trust_system_cas", R.bool.dont_trust_system_cas);
3862		if (dontTrustSystemCAs) {
3863			tm = new MemorizingTrustManager(getApplicationContext(), null);
3864		} else {
3865			tm = new MemorizingTrustManager(getApplicationContext());
3866		}
3867		setMemorizingTrustManager(tm);
3868	}
3869
3870	public LruCache<String, Bitmap> getBitmapCache() {
3871		return this.mBitmapCache;
3872	}
3873
3874	public Collection<String> getKnownHosts() {
3875		final Set<String> hosts = new HashSet<>();
3876		for (final Account account : getAccounts()) {
3877			hosts.add(account.getServer());
3878			for (final Contact contact : account.getRoster().getContacts()) {
3879				if (contact.showInRoster()) {
3880					final String server = contact.getServer();
3881					if (server != null) {
3882						hosts.add(server);
3883					}
3884				}
3885			}
3886		}
3887		if (Config.QUICKSY_DOMAIN != null) {
3888		    hosts.remove(Config.QUICKSY_DOMAIN); //we only want to show this when we type a e164 number
3889        }
3890		if (Config.DOMAIN_LOCK != null) {
3891			hosts.add(Config.DOMAIN_LOCK);
3892		}
3893		if (Config.MAGIC_CREATE_DOMAIN != null) {
3894			hosts.add(Config.MAGIC_CREATE_DOMAIN);
3895		}
3896		return hosts;
3897	}
3898
3899	public Collection<String> getKnownConferenceHosts() {
3900		final Set<String> mucServers = new HashSet<>();
3901		for (final Account account : accounts) {
3902			if (account.getXmppConnection() != null) {
3903				mucServers.addAll(account.getXmppConnection().getMucServers());
3904				for (Bookmark bookmark : account.getBookmarks()) {
3905					final Jid jid = bookmark.getJid();
3906					final String s = jid == null ? null : jid.getDomain();
3907					if (s != null) {
3908						mucServers.add(s);
3909					}
3910				}
3911			}
3912		}
3913		return mucServers;
3914	}
3915
3916	public void sendMessagePacket(Account account, MessagePacket packet) {
3917		XmppConnection connection = account.getXmppConnection();
3918		if (connection != null) {
3919			connection.sendMessagePacket(packet);
3920		}
3921	}
3922
3923	public void sendPresencePacket(Account account, PresencePacket packet) {
3924		XmppConnection connection = account.getXmppConnection();
3925		if (connection != null) {
3926			connection.sendPresencePacket(packet);
3927		}
3928	}
3929
3930	public void sendCreateAccountWithCaptchaPacket(Account account, String id, Data data) {
3931		final XmppConnection connection = account.getXmppConnection();
3932		if (connection != null) {
3933			IqPacket request = mIqGenerator.generateCreateAccountWithCaptcha(account, id, data);
3934			connection.sendUnmodifiedIqPacket(request, connection.registrationResponseListener, true);
3935		}
3936	}
3937
3938	public void sendIqPacket(final Account account, final IqPacket packet, final OnIqPacketReceived callback) {
3939		final XmppConnection connection = account.getXmppConnection();
3940		if (connection != null) {
3941			connection.sendIqPacket(packet, callback);
3942		} else if (callback != null) {
3943		    callback.onIqPacketReceived(account,new IqPacket(IqPacket.TYPE.TIMEOUT));
3944        }
3945	}
3946
3947	public void sendPresence(final Account account) {
3948		sendPresence(account, checkListeners() && broadcastLastActivity());
3949	}
3950
3951	private void sendPresence(final Account account, final boolean includeIdleTimestamp) {
3952		Presence.Status status;
3953		if (manuallyChangePresence()) {
3954			status = account.getPresenceStatus();
3955		} else {
3956			status = getTargetPresence();
3957		}
3958		PresencePacket packet = mPresenceGenerator.selfPresence(account, status);
3959		String message = account.getPresenceStatusMessage();
3960		if (message != null && !message.isEmpty()) {
3961			packet.addChild(new Element("status").setContent(message));
3962		}
3963		if (mLastActivity > 0 && includeIdleTimestamp) {
3964			long since = Math.min(mLastActivity, System.currentTimeMillis()); //don't send future dates
3965			packet.addChild("idle", Namespace.IDLE).setAttribute("since", AbstractGenerator.getTimestamp(since));
3966		}
3967		sendPresencePacket(account, packet);
3968	}
3969
3970	private void deactivateGracePeriod() {
3971		for (Account account : getAccounts()) {
3972			account.deactivateGracePeriod();
3973		}
3974	}
3975
3976	public void refreshAllPresences() {
3977		boolean includeIdleTimestamp = checkListeners() && broadcastLastActivity();
3978		for (Account account : getAccounts()) {
3979			if (account.isEnabled()) {
3980				sendPresence(account, includeIdleTimestamp);
3981			}
3982		}
3983	}
3984
3985	private void refreshAllFcmTokens() {
3986		for (Account account : getAccounts()) {
3987			if (account.isOnlineAndConnected() && mPushManagementService.available(account)) {
3988				mPushManagementService.registerPushTokenOnServer(account);
3989			}
3990		}
3991	}
3992
3993	private void sendOfflinePresence(final Account account) {
3994		Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": sending offline presence");
3995		sendPresencePacket(account, mPresenceGenerator.sendOfflinePresence(account));
3996	}
3997
3998	public MessageGenerator getMessageGenerator() {
3999		return this.mMessageGenerator;
4000	}
4001
4002	public PresenceGenerator getPresenceGenerator() {
4003		return this.mPresenceGenerator;
4004	}
4005
4006	public IqGenerator getIqGenerator() {
4007		return this.mIqGenerator;
4008	}
4009
4010	public IqParser getIqParser() {
4011		return this.mIqParser;
4012	}
4013
4014	public JingleConnectionManager getJingleConnectionManager() {
4015		return this.mJingleConnectionManager;
4016	}
4017
4018	public MessageArchiveService getMessageArchiveService() {
4019		return this.mMessageArchiveService;
4020	}
4021
4022	public QuickConversationsService getQuickConversationsService() {
4023        return this.mQuickConversationsService;
4024    }
4025
4026	public List<Contact> findContacts(Jid jid, String accountJid) {
4027		ArrayList<Contact> contacts = new ArrayList<>();
4028		for (Account account : getAccounts()) {
4029			if ((account.isEnabled() || accountJid != null)
4030					&& (accountJid == null || accountJid.equals(account.getJid().asBareJid().toString()))) {
4031				Contact contact = account.getRoster().getContactFromContactList(jid);
4032				if (contact != null) {
4033					contacts.add(contact);
4034				}
4035			}
4036		}
4037		return contacts;
4038	}
4039
4040	public Conversation findFirstMuc(Jid jid) {
4041		for (Conversation conversation : getConversations()) {
4042			if (conversation.getAccount().isEnabled() && conversation.getJid().asBareJid().equals(jid.asBareJid()) && conversation.getMode() == Conversation.MODE_MULTI) {
4043				return conversation;
4044			}
4045		}
4046		return null;
4047	}
4048
4049	public NotificationService getNotificationService() {
4050		return this.mNotificationService;
4051	}
4052
4053	public HttpConnectionManager getHttpConnectionManager() {
4054		return this.mHttpConnectionManager;
4055	}
4056
4057	public void resendFailedMessages(final Message message) {
4058		final Collection<Message> messages = new ArrayList<>();
4059		Message current = message;
4060		while (current.getStatus() == Message.STATUS_SEND_FAILED) {
4061			messages.add(current);
4062			if (current.mergeable(current.next())) {
4063				current = current.next();
4064			} else {
4065				break;
4066			}
4067		}
4068		for (final Message msg : messages) {
4069			msg.setTime(System.currentTimeMillis());
4070			markMessage(msg, Message.STATUS_WAITING);
4071			this.resendMessage(msg, false);
4072		}
4073		if (message.getConversation() instanceof Conversation) {
4074			((Conversation) message.getConversation()).sort();
4075		}
4076		updateConversationUi();
4077	}
4078
4079	public void clearConversationHistory(final Conversation conversation) {
4080		final long clearDate;
4081		final String reference;
4082		if (conversation.countMessages() > 0) {
4083			Message latestMessage = conversation.getLatestMessage();
4084			clearDate = latestMessage.getTimeSent() + 1000;
4085			reference = latestMessage.getServerMsgId();
4086		} else {
4087			clearDate = System.currentTimeMillis();
4088			reference = null;
4089		}
4090		conversation.clearMessages();
4091		conversation.setHasMessagesLeftOnServer(false); //avoid messages getting loaded through mam
4092		conversation.setLastClearHistory(clearDate, reference);
4093		Runnable runnable = () -> {
4094			databaseBackend.deleteMessagesInConversation(conversation);
4095			databaseBackend.updateConversation(conversation);
4096		};
4097		mDatabaseWriterExecutor.execute(runnable);
4098	}
4099
4100	public boolean sendBlockRequest(final Blockable blockable, boolean reportSpam) {
4101		if (blockable != null && blockable.getBlockedJid() != null) {
4102			final Jid jid = blockable.getBlockedJid();
4103			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetBlockRequest(jid, reportSpam), new OnIqPacketReceived() {
4104
4105				@Override
4106				public void onIqPacketReceived(final Account account, final IqPacket packet) {
4107					if (packet.getType() == IqPacket.TYPE.RESULT) {
4108						account.getBlocklist().add(jid);
4109						updateBlocklistUi(OnUpdateBlocklist.Status.BLOCKED);
4110					}
4111				}
4112			});
4113			if (removeBlockedConversations(blockable.getAccount(), jid)) {
4114				updateConversationUi();
4115				return true;
4116			} else {
4117				return false;
4118			}
4119		} else {
4120			return false;
4121		}
4122	}
4123
4124	public boolean removeBlockedConversations(final Account account, final Jid blockedJid) {
4125		boolean removed = false;
4126		synchronized (this.conversations) {
4127			boolean domainJid = blockedJid.getLocal() == null;
4128			for (Conversation conversation : this.conversations) {
4129				boolean jidMatches = (domainJid && blockedJid.getDomain().equals(conversation.getJid().getDomain()))
4130						|| blockedJid.equals(conversation.getJid().asBareJid());
4131				if (conversation.getAccount() == account
4132						&& conversation.getMode() == Conversation.MODE_SINGLE
4133						&& jidMatches) {
4134					this.conversations.remove(conversation);
4135					markRead(conversation);
4136					conversation.setStatus(Conversation.STATUS_ARCHIVED);
4137					Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": archiving conversation " + conversation.getJid().asBareJid() + " because jid was blocked");
4138					updateConversation(conversation);
4139					removed = true;
4140				}
4141			}
4142		}
4143		return removed;
4144	}
4145
4146	public void sendUnblockRequest(final Blockable blockable) {
4147		if (blockable != null && blockable.getJid() != null) {
4148			final Jid jid = blockable.getBlockedJid();
4149			this.sendIqPacket(blockable.getAccount(), getIqGenerator().generateSetUnblockRequest(jid), new OnIqPacketReceived() {
4150				@Override
4151				public void onIqPacketReceived(final Account account, final IqPacket packet) {
4152					if (packet.getType() == IqPacket.TYPE.RESULT) {
4153						account.getBlocklist().remove(jid);
4154						updateBlocklistUi(OnUpdateBlocklist.Status.UNBLOCKED);
4155					}
4156				}
4157			});
4158		}
4159	}
4160
4161	public void publishDisplayName(Account account) {
4162		String displayName = account.getDisplayName();
4163		final IqPacket request;
4164		if (TextUtils.isEmpty(displayName)) {
4165            request = mIqGenerator.deleteNode(Namespace.NICK);
4166		} else {
4167            request = mIqGenerator.publishNick(displayName);
4168        }
4169        mAvatarService.clear(account);
4170        sendIqPacket(account, request, (account1, packet) -> {
4171            if (packet.getType() == IqPacket.TYPE.ERROR) {
4172                Log.d(Config.LOGTAG, account1.getJid().asBareJid() + ": unable to modify nick name "+packet.toString());
4173            }
4174        });
4175	}
4176
4177	public ServiceDiscoveryResult getCachedServiceDiscoveryResult(Pair<String, String> key) {
4178		ServiceDiscoveryResult result = discoCache.get(key);
4179		if (result != null) {
4180			return result;
4181		} else {
4182			result = databaseBackend.findDiscoveryResult(key.first, key.second);
4183			if (result != null) {
4184				discoCache.put(key, result);
4185			}
4186			return result;
4187		}
4188	}
4189
4190	public void fetchCaps(Account account, final Jid jid, final Presence presence) {
4191		final Pair<String, String> key = new Pair<>(presence.getHash(), presence.getVer());
4192		ServiceDiscoveryResult disco = getCachedServiceDiscoveryResult(key);
4193		if (disco != null) {
4194			presence.setServiceDiscoveryResult(disco);
4195		} else {
4196			if (!account.inProgressDiscoFetches.contains(key)) {
4197				account.inProgressDiscoFetches.add(key);
4198				IqPacket request = new IqPacket(IqPacket.TYPE.GET);
4199				request.setTo(jid);
4200				final String node = presence.getNode();
4201				final String ver = presence.getVer();
4202				final Element query = request.query("http://jabber.org/protocol/disco#info");
4203				if (node != null && ver != null) {
4204					query.setAttribute("node",node+"#"+ver);
4205				}
4206				Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": making disco request for " + key.second + " to " + jid);
4207				sendIqPacket(account, request, (a, response) -> {
4208					if (response.getType() == IqPacket.TYPE.RESULT) {
4209						ServiceDiscoveryResult discoveryResult = new ServiceDiscoveryResult(response);
4210						if (presence.getVer().equals(discoveryResult.getVer())) {
4211							databaseBackend.insertDiscoveryResult(discoveryResult);
4212							injectServiceDiscoveryResult(a.getRoster(), presence.getHash(), presence.getVer(), discoveryResult);
4213						} else {
4214							Log.d(Config.LOGTAG, a.getJid().asBareJid() + ": mismatch in caps for contact " + jid + " " + presence.getVer() + " vs " + discoveryResult.getVer());
4215						}
4216					}
4217					a.inProgressDiscoFetches.remove(key);
4218				});
4219			}
4220		}
4221	}
4222
4223	private void injectServiceDiscoveryResult(Roster roster, String hash, String ver, ServiceDiscoveryResult disco) {
4224		for (Contact contact : roster.getContacts()) {
4225			for (Presence presence : contact.getPresences().getPresences().values()) {
4226				if (hash.equals(presence.getHash()) && ver.equals(presence.getVer())) {
4227					presence.setServiceDiscoveryResult(disco);
4228				}
4229			}
4230		}
4231	}
4232
4233	public void fetchMamPreferences(Account account, final OnMamPreferencesFetched callback) {
4234		final MessageArchiveService.Version version = MessageArchiveService.Version.get(account);
4235		IqPacket request = new IqPacket(IqPacket.TYPE.GET);
4236		request.addChild("prefs", version.namespace);
4237		sendIqPacket(account, request, (account1, packet) -> {
4238			Element prefs = packet.findChild("prefs", version.namespace);
4239			if (packet.getType() == IqPacket.TYPE.RESULT && prefs != null) {
4240				callback.onPreferencesFetched(prefs);
4241			} else {
4242				callback.onPreferencesFetchFailed();
4243			}
4244		});
4245	}
4246
4247	public PushManagementService getPushManagementService() {
4248		return mPushManagementService;
4249	}
4250
4251	public void changeStatus(Account account, PresenceTemplate template, String signature) {
4252		if (!template.getStatusMessage().isEmpty()) {
4253			databaseBackend.insertPresenceTemplate(template);
4254		}
4255		account.setPgpSignature(signature);
4256		account.setPresenceStatus(template.getStatus());
4257		account.setPresenceStatusMessage(template.getStatusMessage());
4258		databaseBackend.updateAccount(account);
4259		sendPresence(account);
4260	}
4261
4262	public List<PresenceTemplate> getPresenceTemplates(Account account) {
4263		List<PresenceTemplate> templates = databaseBackend.getPresenceTemplates();
4264		for (PresenceTemplate template : account.getSelfContact().getPresences().asTemplates()) {
4265			if (!templates.contains(template)) {
4266				templates.add(0, template);
4267			}
4268		}
4269		return templates;
4270	}
4271
4272	public void saveConversationAsBookmark(Conversation conversation, String name) {
4273		Account account = conversation.getAccount();
4274		Bookmark bookmark = new Bookmark(account, conversation.getJid().asBareJid());
4275		if (!conversation.getJid().isBareJid()) {
4276			bookmark.setNick(conversation.getJid().getResource());
4277		}
4278		if (!TextUtils.isEmpty(name)) {
4279			bookmark.setBookmarkName(name);
4280		}
4281		bookmark.setAutojoin(getPreferences().getBoolean("autojoin", getResources().getBoolean(R.bool.autojoin)));
4282		account.getBookmarks().add(bookmark);
4283		pushBookmarks(account);
4284		bookmark.setConversation(conversation);
4285	}
4286
4287	public boolean verifyFingerprints(Contact contact, List<XmppUri.Fingerprint> fingerprints) {
4288		boolean performedVerification = false;
4289		final AxolotlService axolotlService = contact.getAccount().getAxolotlService();
4290		for (XmppUri.Fingerprint fp : fingerprints) {
4291			if (fp.type == XmppUri.FingerprintType.OMEMO) {
4292				String fingerprint = "05" + fp.fingerprint.replaceAll("\\s", "");
4293				FingerprintStatus fingerprintStatus = axolotlService.getFingerprintTrust(fingerprint);
4294				if (fingerprintStatus != null) {
4295					if (!fingerprintStatus.isVerified()) {
4296						performedVerification = true;
4297						axolotlService.setFingerprintTrust(fingerprint, fingerprintStatus.toVerified());
4298					}
4299				} else {
4300					axolotlService.preVerifyFingerprint(contact, fingerprint);
4301				}
4302			}
4303		}
4304		return performedVerification;
4305	}
4306
4307	public boolean verifyFingerprints(Account account, List<XmppUri.Fingerprint> fingerprints) {
4308		final AxolotlService axolotlService = account.getAxolotlService();
4309		boolean verifiedSomething = false;
4310		for (XmppUri.Fingerprint fp : fingerprints) {
4311			if (fp.type == XmppUri.FingerprintType.OMEMO) {
4312				String fingerprint = "05" + fp.fingerprint.replaceAll("\\s", "");
4313				Log.d(Config.LOGTAG, "trying to verify own fp=" + fingerprint);
4314				FingerprintStatus fingerprintStatus = axolotlService.getFingerprintTrust(fingerprint);
4315				if (fingerprintStatus != null) {
4316					if (!fingerprintStatus.isVerified()) {
4317						axolotlService.setFingerprintTrust(fingerprint, fingerprintStatus.toVerified());
4318						verifiedSomething = true;
4319					}
4320				} else {
4321					axolotlService.preVerifyFingerprint(account, fingerprint);
4322					verifiedSomething = true;
4323				}
4324			}
4325		}
4326		return verifiedSomething;
4327	}
4328
4329	public boolean blindTrustBeforeVerification() {
4330		return getBooleanPreference(SettingsActivity.BLIND_TRUST_BEFORE_VERIFICATION, R.bool.btbv);
4331	}
4332
4333	public ShortcutService getShortcutService() {
4334		return mShortcutService;
4335	}
4336
4337	public void pushMamPreferences(Account account, Element prefs) {
4338		IqPacket set = new IqPacket(IqPacket.TYPE.SET);
4339		set.addChild(prefs);
4340		sendIqPacket(account, set, null);
4341	}
4342
4343	public interface OnMamPreferencesFetched {
4344		void onPreferencesFetched(Element prefs);
4345
4346		void onPreferencesFetchFailed();
4347	}
4348
4349	public interface OnAccountCreated {
4350		void onAccountCreated(Account account);
4351
4352		void informUser(int r);
4353	}
4354
4355	public interface OnMoreMessagesLoaded {
4356		void onMoreMessagesLoaded(int count, Conversation conversation);
4357
4358		void informUser(int r);
4359	}
4360
4361	public interface OnAccountPasswordChanged {
4362		void onPasswordChangeSucceeded();
4363
4364		void onPasswordChangeFailed();
4365	}
4366
4367    public interface OnRoomDestroy {
4368        void onRoomDestroySucceeded();
4369
4370        void onRoomDestroyFailed();
4371    }
4372
4373	public interface OnAffiliationChanged {
4374		void onAffiliationChangedSuccessful(Jid jid);
4375
4376		void onAffiliationChangeFailed(Jid jid, int resId);
4377	}
4378
4379	public interface OnConversationUpdate {
4380		void onConversationUpdate();
4381	}
4382
4383	public interface OnAccountUpdate {
4384		void onAccountUpdate();
4385	}
4386
4387	public interface OnCaptchaRequested {
4388		void onCaptchaRequested(Account account, String id, Data data, Bitmap captcha);
4389	}
4390
4391	public interface OnRosterUpdate {
4392		void onRosterUpdate();
4393	}
4394
4395	public interface OnMucRosterUpdate {
4396		void onMucRosterUpdate();
4397	}
4398
4399	public interface OnConferenceConfigurationFetched {
4400		void onConferenceConfigurationFetched(Conversation conversation);
4401
4402		void onFetchFailed(Conversation conversation, Element error);
4403	}
4404
4405	public interface OnConferenceJoined {
4406		void onConferenceJoined(Conversation conversation);
4407	}
4408
4409	public interface OnConfigurationPushed {
4410		void onPushSucceeded();
4411
4412		void onPushFailed();
4413	}
4414
4415	public interface OnShowErrorToast {
4416		void onShowErrorToast(int resId);
4417	}
4418
4419	public class XmppConnectionBinder extends Binder {
4420		public XmppConnectionService getService() {
4421			return XmppConnectionService.this;
4422		}
4423	}
4424
4425	private class InternalEventReceiver extends BroadcastReceiver {
4426
4427        @Override
4428        public void onReceive(Context context, Intent intent) {
4429            onStartCommand(intent,0,0);
4430        }
4431    }
4432}