1package eu.siacs.conversations.parser;
   2
   3import android.util.Log;
   4import android.util.Pair;
   5
   6import com.google.common.collect.ImmutableSet;
   7
   8import java.text.SimpleDateFormat;
   9import java.util.ArrayList;
  10import java.util.Arrays;
  11import java.util.Collections;
  12import java.util.Date;
  13import java.util.List;
  14import java.util.Locale;
  15import java.util.Map;
  16import java.util.Set;
  17import java.util.UUID;
  18
  19import eu.siacs.conversations.AppSettings;
  20import eu.siacs.conversations.Config;
  21import eu.siacs.conversations.R;
  22import eu.siacs.conversations.crypto.axolotl.AxolotlService;
  23import eu.siacs.conversations.crypto.axolotl.BrokenSessionException;
  24import eu.siacs.conversations.crypto.axolotl.NotEncryptedForThisDeviceException;
  25import eu.siacs.conversations.crypto.axolotl.OutdatedSenderException;
  26import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
  27import eu.siacs.conversations.entities.Account;
  28import eu.siacs.conversations.entities.Bookmark;
  29import eu.siacs.conversations.entities.Contact;
  30import eu.siacs.conversations.entities.Conversation;
  31import eu.siacs.conversations.entities.Conversational;
  32import eu.siacs.conversations.entities.Message;
  33import eu.siacs.conversations.entities.MucOptions;
  34import eu.siacs.conversations.entities.ReadByMarker;
  35import eu.siacs.conversations.entities.ReceiptRequest;
  36import eu.siacs.conversations.entities.RtpSessionStatus;
  37import eu.siacs.conversations.http.HttpConnectionManager;
  38import eu.siacs.conversations.services.MessageArchiveService;
  39import eu.siacs.conversations.services.QuickConversationsService;
  40import eu.siacs.conversations.services.XmppConnectionService;
  41import eu.siacs.conversations.utils.CryptoHelper;
  42import eu.siacs.conversations.xml.Element;
  43import eu.siacs.conversations.xml.LocalizedContent;
  44import eu.siacs.conversations.xml.Namespace;
  45import eu.siacs.conversations.xmpp.InvalidJid;
  46import eu.siacs.conversations.xmpp.Jid;
  47import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
  48import eu.siacs.conversations.xmpp.chatstate.ChatState;
  49import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  50import eu.siacs.conversations.xmpp.jingle.JingleRtpConnection;
  51import eu.siacs.conversations.xmpp.pep.Avatar;
  52import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
  53
  54public class MessageParser extends AbstractParser implements OnMessagePacketReceived {
  55
  56    private static final SimpleDateFormat TIME_FORMAT = new SimpleDateFormat("HH:mm:ss", Locale.ENGLISH);
  57
  58    private static final List<String> JINGLE_MESSAGE_ELEMENT_NAMES =
  59            Arrays.asList("accept", "propose", "proceed", "reject", "retract", "ringing", "finish");
  60
  61    public MessageParser(XmppConnectionService service) {
  62        super(service);
  63    }
  64
  65    private static String extractStanzaId(Element packet, boolean isTypeGroupChat, Conversation conversation) {
  66        final Jid by;
  67        final boolean safeToExtract;
  68        if (isTypeGroupChat) {
  69            by = conversation.getJid().asBareJid();
  70            safeToExtract = conversation.getMucOptions().hasFeature(Namespace.STANZA_IDS);
  71        } else {
  72            Account account = conversation.getAccount();
  73            by = account.getJid().asBareJid();
  74            safeToExtract = account.getXmppConnection().getFeatures().stanzaIds();
  75        }
  76        return safeToExtract ? extractStanzaId(packet, by) : null;
  77    }
  78
  79    private static String extractStanzaId(Account account, Element packet) {
  80        final boolean safeToExtract = account.getXmppConnection().getFeatures().stanzaIds();
  81        return safeToExtract ? extractStanzaId(packet, account.getJid().asBareJid()) : null;
  82    }
  83
  84    private static String extractStanzaId(Element packet, Jid by) {
  85        for (Element child : packet.getChildren()) {
  86            if (child.getName().equals("stanza-id")
  87                    && Namespace.STANZA_IDS.equals(child.getNamespace())
  88                    && by.equals(InvalidJid.getNullForInvalid(child.getAttributeAsJid("by")))) {
  89                return child.getAttribute("id");
  90            }
  91        }
  92        return null;
  93    }
  94
  95    private static Jid getTrueCounterpart(Element mucUserElement, Jid fallback) {
  96        final Element item = mucUserElement == null ? null : mucUserElement.findChild("item");
  97        Jid result = item == null ? null : InvalidJid.getNullForInvalid(item.getAttributeAsJid("jid"));
  98        return result != null ? result : fallback;
  99    }
 100
 101    private boolean extractChatState(Conversation c, final boolean isTypeGroupChat, final MessagePacket packet) {
 102        ChatState state = ChatState.parse(packet);
 103        if (state != null && c != null) {
 104            final Account account = c.getAccount();
 105            final Jid from = packet.getFrom();
 106            if (from.asBareJid().equals(account.getJid().asBareJid())) {
 107                c.setOutgoingChatState(state);
 108                if (state == ChatState.ACTIVE || state == ChatState.COMPOSING) {
 109                    if (c.getContact().isSelf()) {
 110                        return false;
 111                    }
 112                    mXmppConnectionService.markRead(c);
 113                    activateGracePeriod(account);
 114                }
 115                return false;
 116            } else {
 117                if (isTypeGroupChat) {
 118                    MucOptions.User user = c.getMucOptions().findUserByFullJid(from);
 119                    if (user != null) {
 120                        return user.setChatState(state);
 121                    } else {
 122                        return false;
 123                    }
 124                } else {
 125                    return c.setIncomingChatState(state);
 126                }
 127            }
 128        }
 129        return false;
 130    }
 131
 132    private Message parseAxolotlChat(Element axolotlMessage, Jid from, Conversation conversation, int status, final boolean checkedForDuplicates, boolean postpone) {
 133        final AxolotlService service = conversation.getAccount().getAxolotlService();
 134        final XmppAxolotlMessage xmppAxolotlMessage;
 135        try {
 136            xmppAxolotlMessage = XmppAxolotlMessage.fromElement(axolotlMessage, from.asBareJid());
 137        } catch (Exception e) {
 138            Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": invalid omemo message received " + e.getMessage());
 139            return null;
 140        }
 141        if (xmppAxolotlMessage.hasPayload()) {
 142            final XmppAxolotlMessage.XmppAxolotlPlaintextMessage plaintextMessage;
 143            try {
 144                plaintextMessage = service.processReceivingPayloadMessage(xmppAxolotlMessage, postpone);
 145            } catch (BrokenSessionException e) {
 146                if (checkedForDuplicates) {
 147                    if (service.trustedOrPreviouslyResponded(from.asBareJid())) {
 148                        service.reportBrokenSessionException(e, postpone);
 149                        return new Message(conversation, "", Message.ENCRYPTION_AXOLOTL_FAILED, status);
 150                    } else {
 151                        Log.d(Config.LOGTAG, "ignoring broken session exception because contact was not trusted");
 152                        return new Message(conversation, "", Message.ENCRYPTION_AXOLOTL_FAILED, status);
 153                    }
 154                } else {
 155                    Log.d(Config.LOGTAG, "ignoring broken session exception because checkForDuplicates failed");
 156                    return null;
 157                }
 158            } catch (NotEncryptedForThisDeviceException e) {
 159                return new Message(conversation, "", Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE, status);
 160            } catch (OutdatedSenderException e) {
 161                return new Message(conversation, "", Message.ENCRYPTION_AXOLOTL_FAILED, status);
 162            }
 163            if (plaintextMessage != null) {
 164                Message finishedMessage = new Message(conversation, plaintextMessage.getPlaintext(), Message.ENCRYPTION_AXOLOTL, status);
 165                finishedMessage.setFingerprint(plaintextMessage.getFingerprint());
 166                Log.d(Config.LOGTAG, AxolotlService.getLogprefix(finishedMessage.getConversation().getAccount()) + " Received Message with session fingerprint: " + plaintextMessage.getFingerprint());
 167                return finishedMessage;
 168            }
 169        } else {
 170            Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": received OMEMO key transport message");
 171            service.processReceivingKeyTransportMessage(xmppAxolotlMessage, postpone);
 172        }
 173        return null;
 174    }
 175
 176    private Invite extractInvite(final Element message) {
 177        final Element mucUser = message.findChild("x", Namespace.MUC_USER);
 178        if (mucUser != null) {
 179            final Element invite = mucUser.findChild("invite");
 180            if (invite != null) {
 181                final String password = mucUser.findChildContent("password");
 182                final Jid from = InvalidJid.getNullForInvalid(invite.getAttributeAsJid("from"));
 183                final Jid to = InvalidJid.getNullForInvalid(invite.getAttributeAsJid("to"));
 184                if (to != null && from == null) {
 185                    Log.d(Config.LOGTAG,"do not parse outgoing mediated invite "+message);
 186                    return null;
 187                }
 188                final Jid room = InvalidJid.getNullForInvalid(message.getAttributeAsJid("from"));
 189                if (room == null) {
 190                    return null;
 191                }
 192                return new Invite(room, password, false, from);
 193            }
 194        }
 195        final Element conference = message.findChild("x", "jabber:x:conference");
 196        if (conference != null) {
 197            Jid from = InvalidJid.getNullForInvalid(message.getAttributeAsJid("from"));
 198            Jid room = InvalidJid.getNullForInvalid(conference.getAttributeAsJid("jid"));
 199            if (room == null) {
 200                return null;
 201            }
 202            return new Invite(room, conference.getAttribute("password"), true, from);
 203        }
 204        return null;
 205    }
 206
 207    private void parseEvent(final Element event, final Jid from, final Account account) {
 208        final Element items = event.findChild("items");
 209        final String node = items == null ? null : items.getAttribute("node");
 210        if ("urn:xmpp:avatar:metadata".equals(node)) {
 211            Avatar avatar = Avatar.parseMetadata(items);
 212            if (avatar != null) {
 213                avatar.owner = from.asBareJid();
 214                if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
 215                    if (account.getJid().asBareJid().equals(from)) {
 216                        if (account.setAvatar(avatar.getFilename())) {
 217                            mXmppConnectionService.databaseBackend.updateAccount(account);
 218                            mXmppConnectionService.notifyAccountAvatarHasChanged(account);
 219                        }
 220                        mXmppConnectionService.getAvatarService().clear(account);
 221                        mXmppConnectionService.updateConversationUi();
 222                        mXmppConnectionService.updateAccountUi();
 223                    } else {
 224                        final Contact contact = account.getRoster().getContact(from);
 225                        contact.setAvatar(avatar);
 226                        mXmppConnectionService.syncRoster(account);
 227                        mXmppConnectionService.getAvatarService().clear(contact);
 228                        mXmppConnectionService.updateConversationUi();
 229                        mXmppConnectionService.updateRosterUi();
 230                    }
 231                } else if (mXmppConnectionService.isDataSaverDisabled()) {
 232                    mXmppConnectionService.fetchAvatar(account, avatar);
 233                }
 234            }
 235        } else if (Namespace.NICK.equals(node)) {
 236            final Element i = items.findChild("item");
 237            final String nick = i == null ? null : i.findChildContent("nick", Namespace.NICK);
 238            if (nick != null) {
 239                setNick(account, from, nick);
 240            }
 241        } else if (AxolotlService.PEP_DEVICE_LIST.equals(node)) {
 242            Element item = items.findChild("item");
 243            Set<Integer> deviceIds = mXmppConnectionService.getIqParser().deviceIds(item);
 244            Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Received PEP device list " + deviceIds + " update from " + from + ", processing... ");
 245            final AxolotlService axolotlService = account.getAxolotlService();
 246            axolotlService.registerDevices(from, deviceIds);
 247        } else if (Namespace.BOOKMARKS.equals(node) && account.getJid().asBareJid().equals(from)) {
 248            final var connection = account.getXmppConnection();
 249            if (connection.getFeatures().bookmarksConversion()) {
 250                if (connection.getFeatures().bookmarks2()) {
 251                    Log.w(
 252                            Config.LOGTAG,
 253                            account.getJid().asBareJid()
 254                                    + ": received storage:bookmark notification even though we opted into bookmarks:1");
 255                }
 256                final Element i = items.findChild("item");
 257                final Element storage =
 258                        i == null ? null : i.findChild("storage", Namespace.BOOKMARKS);
 259                final Map<Jid, Bookmark> bookmarks = Bookmark.parseFromStorage(storage, account);
 260                mXmppConnectionService.processBookmarksInitial(account, bookmarks, true);
 261                Log.d(
 262                        Config.LOGTAG,
 263                        account.getJid().asBareJid() + ": processing bookmark PEP event");
 264            } else {
 265                Log.d(
 266                        Config.LOGTAG,
 267                        account.getJid().asBareJid()
 268                                + ": ignoring bookmark PEP event because bookmark conversion was not detected");
 269            }
 270        } else if (Namespace.BOOKMARKS2.equals(node) && account.getJid().asBareJid().equals(from)) {
 271            final Element item = items.findChild("item");
 272            final Element retract = items.findChild("retract");
 273            if (item != null) {
 274                final Bookmark bookmark = Bookmark.parseFromItem(item, account);
 275                if (bookmark != null) {
 276                    account.putBookmark(bookmark);
 277                    mXmppConnectionService.processModifiedBookmark(bookmark);
 278                    mXmppConnectionService.updateConversationUi();
 279                }
 280            }
 281            if (retract != null) {
 282                final Jid id = InvalidJid.getNullForInvalid(retract.getAttributeAsJid("id"));
 283                if (id != null) {
 284                    account.removeBookmark(id);
 285                    Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": deleted bookmark for " + id);
 286                    mXmppConnectionService.processDeletedBookmark(account, id);
 287                    mXmppConnectionService.updateConversationUi();
 288                }
 289            }
 290        } else if (Config.MESSAGE_DISPLAYED_SYNCHRONIZATION
 291                && Namespace.MDS_DISPLAYED.equals(node)
 292                && account.getJid().asBareJid().equals(from)) {
 293            final Element item = items.findChild("item");
 294            mXmppConnectionService.processMdsItem(account, item);
 295        } else {
 296            Log.d(
 297                    Config.LOGTAG,
 298                    account.getJid().asBareJid()
 299                            + " received pubsub notification for node="
 300                            + node);
 301        }
 302    }
 303
 304    private void parseDeleteEvent(final Element event, final Jid from, final Account account) {
 305        final Element delete = event.findChild("delete");
 306        final String node = delete == null ? null : delete.getAttribute("node");
 307        if (Namespace.NICK.equals(node)) {
 308            Log.d(Config.LOGTAG, "parsing nick delete event from " + from);
 309            setNick(account, from, null);
 310        } else if (Namespace.BOOKMARKS2.equals(node) && account.getJid().asBareJid().equals(from)) {
 311            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": deleted bookmarks node");
 312            deleteAllBookmarks(account);
 313        } else if (Namespace.AVATAR_METADATA.equals(node) && account.getJid().asBareJid().equals(from)) {
 314            Log.d(Config.LOGTAG,account.getJid().asBareJid()+": deleted avatar metadata node");
 315        }
 316    }
 317
 318    private void parsePurgeEvent(final Element event, final Jid from, final Account account) {
 319        final Element purge = event.findChild("purge");
 320        final String node = purge == null ? null : purge.getAttribute("node");
 321        if (Namespace.BOOKMARKS2.equals(node) && account.getJid().asBareJid().equals(from)) {
 322            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": purged bookmarks");
 323            deleteAllBookmarks(account);
 324        }
 325    }
 326
 327    private void deleteAllBookmarks(final Account account) {
 328        final var previous = account.getBookmarkedJids();
 329        account.setBookmarks(Collections.emptyMap());
 330        mXmppConnectionService.processDeletedBookmarks(account, previous);
 331    }
 332
 333    private void setNick(Account account, Jid user, String nick) {
 334        if (user.asBareJid().equals(account.getJid().asBareJid())) {
 335            account.setDisplayName(nick);
 336            if (QuickConversationsService.isQuicksy()) {
 337                mXmppConnectionService.getAvatarService().clear(account);
 338            }
 339        } else {
 340            Contact contact = account.getRoster().getContact(user);
 341            if (contact.setPresenceName(nick)) {
 342                mXmppConnectionService.syncRoster(account);
 343                mXmppConnectionService.getAvatarService().clear(contact);
 344            }
 345        }
 346        mXmppConnectionService.updateConversationUi();
 347        mXmppConnectionService.updateAccountUi();
 348    }
 349
 350    private boolean handleErrorMessage(final Account account, final MessagePacket packet) {
 351        if (packet.getType() == MessagePacket.TYPE_ERROR) {
 352            if (packet.fromServer(account)) {
 353                final Pair<MessagePacket, Long> forwarded = packet.getForwardedMessagePacket("received", Namespace.CARBONS);
 354                if (forwarded != null) {
 355                    return handleErrorMessage(account, forwarded.first);
 356                }
 357            }
 358            final Jid from = packet.getFrom();
 359            final String id = packet.getId();
 360            if (from != null && id != null) {
 361                if (id.startsWith(JingleRtpConnection.JINGLE_MESSAGE_PROPOSE_ID_PREFIX)) {
 362                    final String sessionId = id.substring(JingleRtpConnection.JINGLE_MESSAGE_PROPOSE_ID_PREFIX.length());
 363                    mXmppConnectionService.getJingleConnectionManager()
 364                            .updateProposedSessionDiscovered(account, from, sessionId, JingleConnectionManager.DeviceDiscoveryState.FAILED);
 365                    return true;
 366                }
 367                if (id.startsWith(JingleRtpConnection.JINGLE_MESSAGE_PROCEED_ID_PREFIX)) {
 368                    final String sessionId = id.substring(JingleRtpConnection.JINGLE_MESSAGE_PROCEED_ID_PREFIX.length());
 369                    final String message = extractErrorMessage(packet);
 370                    mXmppConnectionService.getJingleConnectionManager().failProceed(account, from, sessionId, message);
 371                    return true;
 372                }
 373                mXmppConnectionService.markMessage(account,
 374                        from.asBareJid(),
 375                        id,
 376                        Message.STATUS_SEND_FAILED,
 377                        extractErrorMessage(packet));
 378                final Element error = packet.findChild("error");
 379                final boolean pingWorthyError = error != null && (error.hasChild("not-acceptable") || error.hasChild("remote-server-timeout") || error.hasChild("remote-server-not-found"));
 380                if (pingWorthyError) {
 381                    Conversation conversation = mXmppConnectionService.find(account, from);
 382                    if (conversation != null && conversation.getMode() == Conversational.MODE_MULTI) {
 383                        if (conversation.getMucOptions().online()) {
 384                            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received ping worthy error for seemingly online muc at " + from);
 385                            mXmppConnectionService.mucSelfPingAndRejoin(conversation);
 386                        }
 387                    }
 388                }
 389            }
 390            return true;
 391        }
 392        return false;
 393    }
 394
 395    @Override
 396    public void onMessagePacketReceived(Account account, MessagePacket original) {
 397        if (handleErrorMessage(account, original)) {
 398            return;
 399        }
 400        final MessagePacket packet;
 401        Long timestamp = null;
 402        boolean isCarbon = false;
 403        String serverMsgId = null;
 404        final Element fin = original.findChild("fin", MessageArchiveService.Version.MAM_0.namespace);
 405        if (fin != null) {
 406            mXmppConnectionService.getMessageArchiveService().processFinLegacy(fin, original.getFrom());
 407            return;
 408        }
 409        final Element result = MessageArchiveService.Version.findResult(original);
 410        final String queryId = result == null ? null : result.getAttribute("queryid");
 411        final MessageArchiveService.Query query = queryId == null ? null : mXmppConnectionService.getMessageArchiveService().findQuery(queryId);
 412        final boolean offlineMessagesRetrieved = account.getXmppConnection().isOfflineMessagesRetrieved();
 413        if (query != null && query.validFrom(original.getFrom())) {
 414            final Pair<MessagePacket, Long> f = original.getForwardedMessagePacket("result", query.version.namespace);
 415            if (f == null) {
 416                return;
 417            }
 418            timestamp = f.second;
 419            packet = f.first;
 420            serverMsgId = result.getAttribute("id");
 421            query.incrementMessageCount();
 422            if (handleErrorMessage(account, packet)) {
 423                return;
 424            }
 425        } else if (query != null) {
 426            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received mam result with invalid from (" + original.getFrom() + ") or queryId (" + queryId + ")");
 427            return;
 428        } else if (original.fromServer(account)) {
 429            Pair<MessagePacket, Long> f;
 430            f = original.getForwardedMessagePacket("received", Namespace.CARBONS);
 431            f = f == null ? original.getForwardedMessagePacket("sent", Namespace.CARBONS) : f;
 432            packet = f != null ? f.first : original;
 433            if (handleErrorMessage(account, packet)) {
 434                return;
 435            }
 436            timestamp = f != null ? f.second : null;
 437            isCarbon = f != null;
 438        } else {
 439            packet = original;
 440        }
 441
 442        if (timestamp == null) {
 443            timestamp = AbstractParser.parseTimestamp(original, AbstractParser.parseTimestamp(packet));
 444        }
 445        final LocalizedContent body = packet.getBody();
 446        final Element mucUserElement = packet.findChild("x", Namespace.MUC_USER);
 447        final String pgpEncrypted = packet.findChildContent("x", "jabber:x:encrypted");
 448        final Element replaceElement = packet.findChild("replace", "urn:xmpp:message-correct:0");
 449        final Element oob = packet.findChild("x", Namespace.OOB);
 450        final String oobUrl = oob != null ? oob.findChildContent("url") : null;
 451        final String replacementId = replaceElement == null ? null : replaceElement.getAttribute("id");
 452        final Element axolotlEncrypted = packet.findChildEnsureSingle(XmppAxolotlMessage.CONTAINERTAG, AxolotlService.PEP_PREFIX);
 453        int status;
 454        final Jid counterpart;
 455        final Jid to = packet.getTo();
 456        final Jid from = packet.getFrom();
 457        final Element originId = packet.findChild("origin-id", Namespace.STANZA_IDS);
 458        final String remoteMsgId;
 459        if (originId != null && originId.getAttribute("id") != null) {
 460            remoteMsgId = originId.getAttribute("id");
 461        } else {
 462            remoteMsgId = packet.getId();
 463        }
 464        boolean notify = false;
 465
 466        if (from == null || !InvalidJid.isValid(from) || !InvalidJid.isValid(to)) {
 467            Log.e(Config.LOGTAG, "encountered invalid message from='" + from + "' to='" + to + "'");
 468            return;
 469        }
 470
 471        boolean isTypeGroupChat = packet.getType() == MessagePacket.TYPE_GROUPCHAT;
 472        if (query != null && !query.muc() && isTypeGroupChat) {
 473            Log.e(Config.LOGTAG, account.getJid().asBareJid() + ": received groupchat (" + from + ") message on regular MAM request. skipping");
 474            return;
 475        }
 476        boolean isMucStatusMessage = InvalidJid.hasValidFrom(packet) && from.isBareJid() && mucUserElement != null && mucUserElement.hasChild("status");
 477        boolean selfAddressed;
 478        if (packet.fromAccount(account)) {
 479            status = Message.STATUS_SEND;
 480            selfAddressed = to == null || account.getJid().asBareJid().equals(to.asBareJid());
 481            if (selfAddressed) {
 482                counterpart = from;
 483            } else {
 484                counterpart = to;
 485            }
 486        } else {
 487            status = Message.STATUS_RECEIVED;
 488            counterpart = from;
 489            selfAddressed = false;
 490        }
 491
 492        final Invite invite = extractInvite(packet);
 493        if (invite != null) {
 494            if (invite.jid.asBareJid().equals(account.getJid().asBareJid())) {
 495                Log.d(Config.LOGTAG,account.getJid().asBareJid()+": ignore invite to "+invite.jid+" because it matches account");
 496            } else if (isTypeGroupChat) {
 497                Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": ignoring invite to " + invite.jid + " because it was received as group chat");
 498            } else if (invite.direct && (mucUserElement != null || invite.inviter == null || mXmppConnectionService.isMuc(account, invite.inviter))) {
 499                Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": ignoring direct invite to " + invite.jid + " because it was received in MUC");
 500            } else {
 501                invite.execute(account);
 502                return;
 503            }
 504        }
 505
 506        if ((body != null || pgpEncrypted != null || (axolotlEncrypted != null && axolotlEncrypted.hasChild("payload")) || oobUrl != null) && !isMucStatusMessage) {
 507            final boolean conversationIsProbablyMuc = isTypeGroupChat || mucUserElement != null || account.getXmppConnection().getMucServersWithholdAccount().contains(counterpart.getDomain().toEscapedString());
 508            final Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, counterpart.asBareJid(), conversationIsProbablyMuc, false, query, false);
 509            final boolean conversationMultiMode = conversation.getMode() == Conversation.MODE_MULTI;
 510
 511            if (serverMsgId == null) {
 512                serverMsgId = extractStanzaId(packet, isTypeGroupChat, conversation);
 513            }
 514
 515
 516            if (selfAddressed) {
 517                if (mXmppConnectionService.markMessage(conversation, remoteMsgId, Message.STATUS_SEND_RECEIVED, serverMsgId)) {
 518                    return;
 519                }
 520                status = Message.STATUS_RECEIVED;
 521                if (remoteMsgId != null && conversation.findMessageWithRemoteId(remoteMsgId, counterpart) != null) {
 522                    return;
 523                }
 524            }
 525
 526            if (isTypeGroupChat) {
 527                if (conversation.getMucOptions().isSelf(counterpart)) {
 528                    status = Message.STATUS_SEND_RECEIVED;
 529                    isCarbon = true; //not really carbon but received from another resource
 530                    if (mXmppConnectionService.markMessage(conversation, remoteMsgId, status, serverMsgId, body)) {
 531                        return;
 532                    } else if (remoteMsgId == null || Config.IGNORE_ID_REWRITE_IN_MUC) {
 533                        if (body != null) {
 534                            Message message = conversation.findSentMessageWithBody(body.content);
 535                            if (message != null) {
 536                                mXmppConnectionService.markMessage(message, status);
 537                                return;
 538                            }
 539                        }
 540                    }
 541                } else {
 542                    status = Message.STATUS_RECEIVED;
 543                }
 544            }
 545            final Message message;
 546            if (pgpEncrypted != null && Config.supportOpenPgp()) {
 547                message = new Message(conversation, pgpEncrypted, Message.ENCRYPTION_PGP, status);
 548            } else if (axolotlEncrypted != null && Config.supportOmemo()) {
 549                Jid origin;
 550                Set<Jid> fallbacksBySourceId = Collections.emptySet();
 551                if (conversationMultiMode) {
 552                    final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
 553                    origin = getTrueCounterpart(query != null ? mucUserElement : null, fallback);
 554                    if (origin == null) {
 555                        try {
 556                            fallbacksBySourceId = account.getAxolotlService().findCounterpartsBySourceId(XmppAxolotlMessage.parseSourceId(axolotlEncrypted));
 557                        } catch (IllegalArgumentException e) {
 558                            //ignoring
 559                        }
 560                    }
 561                    if (origin == null && fallbacksBySourceId.size() == 0) {
 562                        Log.d(Config.LOGTAG, "axolotl message in anonymous conference received and no possible fallbacks");
 563                        return;
 564                    }
 565                } else {
 566                    fallbacksBySourceId = Collections.emptySet();
 567                    origin = from;
 568                }
 569
 570                final boolean liveMessage = query == null && !isTypeGroupChat && mucUserElement == null;
 571                final boolean checkedForDuplicates = liveMessage || (serverMsgId != null && remoteMsgId != null && !conversation.possibleDuplicate(serverMsgId, remoteMsgId));
 572
 573                if (origin != null) {
 574                    message = parseAxolotlChat(axolotlEncrypted, origin, conversation, status, checkedForDuplicates, query != null);
 575                } else {
 576                    Message trial = null;
 577                    for (Jid fallback : fallbacksBySourceId) {
 578                        trial = parseAxolotlChat(axolotlEncrypted, fallback, conversation, status, checkedForDuplicates && fallbacksBySourceId.size() == 1, query != null);
 579                        if (trial != null) {
 580                            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": decoded muc message using fallback");
 581                            origin = fallback;
 582                            break;
 583                        }
 584                    }
 585                    message = trial;
 586                }
 587                if (message == null) {
 588                    if (query == null && extractChatState(mXmppConnectionService.find(account, counterpart.asBareJid()), isTypeGroupChat, packet)) {
 589                        mXmppConnectionService.updateConversationUi();
 590                    }
 591                    if (query != null && status == Message.STATUS_SEND && remoteMsgId != null) {
 592                        Message previouslySent = conversation.findSentMessageWithUuid(remoteMsgId);
 593                        if (previouslySent != null && previouslySent.getServerMsgId() == null && serverMsgId != null) {
 594                            previouslySent.setServerMsgId(serverMsgId);
 595                            mXmppConnectionService.databaseBackend.updateMessage(previouslySent, false);
 596                            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": encountered previously sent OMEMO message without serverId. updating...");
 597                        }
 598                    }
 599                    return;
 600                }
 601                if (conversationMultiMode) {
 602                    message.setTrueCounterpart(origin);
 603                }
 604            } else if (body == null && oobUrl != null) {
 605                message = new Message(conversation, oobUrl, Message.ENCRYPTION_NONE, status);
 606                message.setOob(true);
 607                if (CryptoHelper.isPgpEncryptedUrl(oobUrl)) {
 608                    message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 609                }
 610            } else {
 611                message = new Message(conversation, body.content, Message.ENCRYPTION_NONE, status);
 612                if (body.count > 1) {
 613                    message.setBodyLanguage(body.language);
 614                }
 615            }
 616
 617            message.setCounterpart(counterpart);
 618            message.setRemoteMsgId(remoteMsgId);
 619            message.setServerMsgId(serverMsgId);
 620            message.setCarbon(isCarbon);
 621            message.setTime(timestamp);
 622            if (body != null && body.content != null && body.content.equals(oobUrl)) {
 623                message.setOob(true);
 624                if (CryptoHelper.isPgpEncryptedUrl(oobUrl)) {
 625                    message.setEncryption(Message.ENCRYPTION_DECRYPTED);
 626                }
 627            }
 628            message.markable = packet.hasChild("markable", "urn:xmpp:chat-markers:0");
 629            if (conversationMultiMode) {
 630                message.setMucUser(conversation.getMucOptions().findUserByFullJid(counterpart));
 631                final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
 632                Jid trueCounterpart;
 633                if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL) {
 634                    trueCounterpart = message.getTrueCounterpart();
 635                } else if (query != null && query.safeToExtractTrueCounterpart()) {
 636                    trueCounterpart = getTrueCounterpart(mucUserElement, fallback);
 637                } else {
 638                    trueCounterpart = fallback;
 639                }
 640                if (trueCounterpart != null && isTypeGroupChat) {
 641                    if (trueCounterpart.asBareJid().equals(account.getJid().asBareJid())) {
 642                        status = isTypeGroupChat ? Message.STATUS_SEND_RECEIVED : Message.STATUS_SEND;
 643                    } else {
 644                        status = Message.STATUS_RECEIVED;
 645                        message.setCarbon(false);
 646                    }
 647                }
 648                message.setStatus(status);
 649                message.setTrueCounterpart(trueCounterpart);
 650                if (!isTypeGroupChat) {
 651                    message.setType(Message.TYPE_PRIVATE);
 652                }
 653            } else {
 654                updateLastseen(account, from);
 655            }
 656
 657            if (replacementId != null && mXmppConnectionService.allowMessageCorrection()) {
 658                final Message replacedMessage = conversation.findMessageWithRemoteIdAndCounterpart(replacementId,
 659                        counterpart,
 660                        message.getStatus() == Message.STATUS_RECEIVED,
 661                        message.isCarbon());
 662                if (replacedMessage != null) {
 663                    final boolean fingerprintsMatch = replacedMessage.getFingerprint() == null
 664                            || replacedMessage.getFingerprint().equals(message.getFingerprint());
 665                    final boolean trueCountersMatch = replacedMessage.getTrueCounterpart() != null
 666                            && message.getTrueCounterpart() != null
 667                            && replacedMessage.getTrueCounterpart().asBareJid().equals(message.getTrueCounterpart().asBareJid());
 668                    final boolean mucUserMatches = query == null && replacedMessage.sameMucUser(message); //can not be checked when using mam
 669                    final boolean duplicate = conversation.hasDuplicateMessage(message);
 670                    if (fingerprintsMatch && (trueCountersMatch || !conversationMultiMode || mucUserMatches) && !duplicate) {
 671                        synchronized (replacedMessage) {
 672                            final String uuid = replacedMessage.getUuid();
 673                            replacedMessage.setUuid(UUID.randomUUID().toString());
 674                            replacedMessage.setBody(message.getBody());
 675                            replacedMessage.putEdited(replacedMessage.getRemoteMsgId(), replacedMessage.getServerMsgId());
 676                            replacedMessage.setRemoteMsgId(remoteMsgId);
 677                            if (replacedMessage.getServerMsgId() == null || message.getServerMsgId() != null) {
 678                                replacedMessage.setServerMsgId(message.getServerMsgId());
 679                            }
 680                            replacedMessage.setEncryption(message.getEncryption());
 681                            if (replacedMessage.getStatus() == Message.STATUS_RECEIVED) {
 682                                replacedMessage.markUnread();
 683                            }
 684                            extractChatState(mXmppConnectionService.find(account, counterpart.asBareJid()), isTypeGroupChat, packet);
 685                            mXmppConnectionService.updateMessage(replacedMessage, uuid);
 686                            if (mXmppConnectionService.confirmMessages()
 687                                    && replacedMessage.getStatus() == Message.STATUS_RECEIVED
 688                                    && (replacedMessage.trusted() || replacedMessage.isPrivateMessage()) //TODO do we really want to send receipts for all PMs?
 689                                    && remoteMsgId != null
 690                                    && !selfAddressed
 691                                    && !isTypeGroupChat) {
 692                                processMessageReceipts(account, packet, remoteMsgId, query);
 693                            }
 694                            if (replacedMessage.getEncryption() == Message.ENCRYPTION_PGP) {
 695                                conversation.getAccount().getPgpDecryptionService().discard(replacedMessage);
 696                                conversation.getAccount().getPgpDecryptionService().decrypt(replacedMessage, false);
 697                            }
 698                        }
 699                        mXmppConnectionService.getNotificationService().updateNotification();
 700                        return;
 701                    } else {
 702                        Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received message correction but verification didn't check out");
 703                    }
 704                }
 705            }
 706
 707            long deletionDate = mXmppConnectionService.getAutomaticMessageDeletionDate();
 708            if (deletionDate != 0 && message.getTimeSent() < deletionDate) {
 709                Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": skipping message from " + message.getCounterpart().toString() + " because it was sent prior to our deletion date");
 710                return;
 711            }
 712
 713            boolean checkForDuplicates = (isTypeGroupChat && packet.hasChild("delay", "urn:xmpp:delay"))
 714                    || message.isPrivateMessage()
 715                    || message.getServerMsgId() != null
 716                    || (query == null && mXmppConnectionService.getMessageArchiveService().isCatchupInProgress(conversation));
 717            if (checkForDuplicates) {
 718                final Message duplicate = conversation.findDuplicateMessage(message);
 719                if (duplicate != null) {
 720                    final boolean serverMsgIdUpdated;
 721                    if (duplicate.getStatus() != Message.STATUS_RECEIVED
 722                            && duplicate.getUuid().equals(message.getRemoteMsgId())
 723                            && duplicate.getServerMsgId() == null
 724                            && message.getServerMsgId() != null) {
 725                        duplicate.setServerMsgId(message.getServerMsgId());
 726                        if (mXmppConnectionService.databaseBackend.updateMessage(duplicate, false)) {
 727                            serverMsgIdUpdated = true;
 728                        } else {
 729                            serverMsgIdUpdated = false;
 730                            Log.e(Config.LOGTAG, "failed to update message");
 731                        }
 732                    } else {
 733                        serverMsgIdUpdated = false;
 734                    }
 735                    Log.d(Config.LOGTAG, "skipping duplicate message with " + message.getCounterpart() + ". serverMsgIdUpdated=" + serverMsgIdUpdated);
 736                    return;
 737                }
 738            }
 739
 740            if (query != null && query.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
 741                conversation.prepend(query.getActualInThisQuery(), message);
 742            } else {
 743                conversation.add(message);
 744            }
 745            if (query != null) {
 746                query.incrementActualMessageCount();
 747            }
 748
 749            if (query == null || query.isCatchup()) { //either no mam or catchup
 750                if (status == Message.STATUS_SEND || status == Message.STATUS_SEND_RECEIVED) {
 751                    mXmppConnectionService.markRead(conversation);
 752                    if (query == null) {
 753                        activateGracePeriod(account);
 754                    }
 755                } else {
 756                    message.markUnread();
 757                    notify = true;
 758                }
 759            }
 760
 761            if (message.getEncryption() == Message.ENCRYPTION_PGP) {
 762                notify = conversation.getAccount().getPgpDecryptionService().decrypt(message, notify);
 763            } else if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE || message.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
 764                notify = false;
 765            }
 766
 767            if (query == null) {
 768                extractChatState(mXmppConnectionService.find(account, counterpart.asBareJid()), isTypeGroupChat, packet);
 769                mXmppConnectionService.updateConversationUi();
 770            }
 771
 772            if (mXmppConnectionService.confirmMessages()
 773                    && message.getStatus() == Message.STATUS_RECEIVED
 774                    && (message.trusted() || message.isPrivateMessage())
 775                    && remoteMsgId != null
 776                    && !selfAddressed
 777                    && !isTypeGroupChat) {
 778                processMessageReceipts(account, packet, remoteMsgId, query);
 779            }
 780
 781            mXmppConnectionService.databaseBackend.createMessage(message);
 782            final HttpConnectionManager manager = this.mXmppConnectionService.getHttpConnectionManager();
 783            if (message.trusted() && message.treatAsDownloadable() && manager.getAutoAcceptFileSize() > 0) {
 784                manager.createNewDownloadConnection(message);
 785            } else if (notify) {
 786                if (query != null && query.isCatchup()) {
 787                    mXmppConnectionService.getNotificationService().pushFromBacklog(message);
 788                } else {
 789                    mXmppConnectionService.getNotificationService().push(message);
 790                }
 791            }
 792        } else if (!packet.hasChild("body")) { //no body
 793
 794            final Conversation conversation = mXmppConnectionService.find(account, from.asBareJid());
 795            if (axolotlEncrypted != null) {
 796                Jid origin;
 797                if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
 798                    final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
 799                    origin = getTrueCounterpart(query != null ? mucUserElement : null, fallback);
 800                    if (origin == null) {
 801                        Log.d(Config.LOGTAG, "omemo key transport message in anonymous conference received");
 802                        return;
 803                    }
 804                } else if (isTypeGroupChat) {
 805                    return;
 806                } else {
 807                    origin = from;
 808                }
 809                try {
 810                    final XmppAxolotlMessage xmppAxolotlMessage = XmppAxolotlMessage.fromElement(axolotlEncrypted, origin.asBareJid());
 811                    account.getAxolotlService().processReceivingKeyTransportMessage(xmppAxolotlMessage, query != null);
 812                    Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": omemo key transport message received from " + origin);
 813                } catch (Exception e) {
 814                    Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": invalid omemo key transport message received " + e.getMessage());
 815                    return;
 816                }
 817            }
 818
 819            if (query == null && extractChatState(mXmppConnectionService.find(account, counterpart.asBareJid()), isTypeGroupChat, packet)) {
 820                mXmppConnectionService.updateConversationUi();
 821            }
 822
 823            if (isTypeGroupChat) {
 824                if (packet.hasChild("subject") && !packet.hasChild("thread")) { // We already know it has no body per above
 825                    if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
 826                        conversation.setHasMessagesLeftOnServer(conversation.countMessages() > 0);
 827                        final LocalizedContent subject = packet.findInternationalizedChildContentInDefaultNamespace("subject");
 828                        if (subject != null && conversation.getMucOptions().setSubject(subject.content)) {
 829                            mXmppConnectionService.updateConversation(conversation);
 830                        }
 831                        mXmppConnectionService.updateConversationUi();
 832                        return;
 833                    }
 834                }
 835            }
 836            if (conversation != null && mucUserElement != null && InvalidJid.hasValidFrom(packet) && from.isBareJid()) {
 837                for (Element child : mucUserElement.getChildren()) {
 838                    if ("status".equals(child.getName())) {
 839                        try {
 840                            int code = Integer.parseInt(child.getAttribute("code"));
 841                            if ((code >= 170 && code <= 174) || (code >= 102 && code <= 104)) {
 842                                mXmppConnectionService.fetchConferenceConfiguration(conversation);
 843                                break;
 844                            }
 845                        } catch (Exception e) {
 846                            //ignored
 847                        }
 848                    } else if ("item".equals(child.getName())) {
 849                        MucOptions.User user = AbstractParser.parseItem(conversation, child);
 850                        Log.d(Config.LOGTAG, account.getJid() + ": changing affiliation for "
 851                                + user.getRealJid() + " to " + user.getAffiliation() + " in "
 852                                + conversation.getJid().asBareJid());
 853                        if (!user.realJidMatchesAccount()) {
 854                            boolean isNew = conversation.getMucOptions().updateUser(user);
 855                            mXmppConnectionService.getAvatarService().clear(conversation);
 856                            mXmppConnectionService.updateMucRosterUi();
 857                            mXmppConnectionService.updateConversationUi();
 858                            Contact contact = user.getContact();
 859                            if (!user.getAffiliation().ranks(MucOptions.Affiliation.MEMBER)) {
 860                                Jid jid = user.getRealJid();
 861                                List<Jid> cryptoTargets = conversation.getAcceptedCryptoTargets();
 862                                if (cryptoTargets.remove(user.getRealJid())) {
 863                                    Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": removed " + jid + " from crypto targets of " + conversation.getName());
 864                                    conversation.setAcceptedCryptoTargets(cryptoTargets);
 865                                    mXmppConnectionService.updateConversation(conversation);
 866                                }
 867                            } else if (isNew
 868                                    && user.getRealJid() != null
 869                                    && conversation.getMucOptions().isPrivateAndNonAnonymous()
 870                                    && (contact == null || !contact.mutualPresenceSubscription())
 871                                    && account.getAxolotlService().hasEmptyDeviceList(user.getRealJid())) {
 872                                account.getAxolotlService().fetchDeviceIds(user.getRealJid());
 873                            }
 874                        }
 875                    }
 876                }
 877            }
 878            if (!isTypeGroupChat) {
 879                for (Element child : packet.getChildren()) {
 880                    if (Namespace.JINGLE_MESSAGE.equals(child.getNamespace()) && JINGLE_MESSAGE_ELEMENT_NAMES.contains(child.getName())) {
 881                        final String action = child.getName();
 882                        final String sessionId = child.getAttribute("id");
 883                        if (sessionId == null) {
 884                            break;
 885                        }
 886                        if (query == null && offlineMessagesRetrieved) {
 887                            if (serverMsgId == null) {
 888                                serverMsgId = extractStanzaId(account, packet);
 889                            }
 890                            mXmppConnectionService
 891                                    .getJingleConnectionManager()
 892                                    .deliverMessage(
 893                                            account,
 894                                            packet.getTo(),
 895                                            packet.getFrom(),
 896                                            child,
 897                                            remoteMsgId,
 898                                            serverMsgId,
 899                                            timestamp);
 900                            final Contact contact = account.getRoster().getContact(from);
 901                            if (mXmppConnectionService.confirmMessages()
 902                                    && !contact.isSelf()
 903                                    && remoteMsgId != null
 904                                    && contact.showInContactList()) {
 905                                processMessageReceipts(account, packet, remoteMsgId, null);
 906                            }
 907                        } else if ((query != null && query.isCatchup()) || !offlineMessagesRetrieved) {
 908                            if ("propose".equals(action)) {
 909                                final Element description = child.findChild("description");
 910                                final String namespace =
 911                                        description == null ? null : description.getNamespace();
 912                                if (Namespace.JINGLE_APPS_RTP.equals(namespace)) {
 913                                    final Conversation c =
 914                                            mXmppConnectionService.findOrCreateConversation(
 915                                                    account, counterpart.asBareJid(), false, false);
 916                                    final Message preExistingMessage =
 917                                            c.findRtpSession(sessionId, status);
 918                                    if (preExistingMessage != null) {
 919                                        preExistingMessage.setServerMsgId(serverMsgId);
 920                                        mXmppConnectionService.updateMessage(preExistingMessage);
 921                                        break;
 922                                    }
 923                                    final Message message =
 924                                            new Message(
 925                                                    c, status, Message.TYPE_RTP_SESSION, sessionId);
 926                                    message.setServerMsgId(serverMsgId);
 927                                    message.setTime(timestamp);
 928                                    message.setBody(new RtpSessionStatus(false, 0).toString());
 929                                    c.add(message);
 930                                    mXmppConnectionService.databaseBackend.createMessage(message);
 931                                }
 932                            } else if ("proceed".equals(action)) {
 933                                // status needs to be flipped to find the original propose
 934                                final Conversation c =
 935                                        mXmppConnectionService.findOrCreateConversation(
 936                                                account, counterpart.asBareJid(), false, false);
 937                                final int s =
 938                                        packet.fromAccount(account)
 939                                                ? Message.STATUS_RECEIVED
 940                                                : Message.STATUS_SEND;
 941                                final Message message = c.findRtpSession(sessionId, s);
 942                                if (message != null) {
 943                                    message.setBody(new RtpSessionStatus(true, 0).toString());
 944                                    if (serverMsgId != null) {
 945                                        message.setServerMsgId(serverMsgId);
 946                                    }
 947                                    message.setTime(timestamp);
 948                                    mXmppConnectionService.updateMessage(message, true);
 949                                } else {
 950                                    Log.d(
 951                                            Config.LOGTAG,
 952                                            "unable to find original rtp session message for received propose");
 953                                }
 954
 955                            } else if ("finish".equals(action)) {
 956                                Log.d(
 957                                        Config.LOGTAG,
 958                                        "received JMI 'finish' during MAM catch-up. Can be used to update success/failure and duration");
 959                            }
 960                        } else {
 961                            //MAM reloads (non catchups
 962                            if ("propose".equals(action)) {
 963                                final Element description = child.findChild("description");
 964                                final String namespace = description == null ? null : description.getNamespace();
 965                                if (Namespace.JINGLE_APPS_RTP.equals(namespace)) {
 966                                    final Conversation c = mXmppConnectionService.findOrCreateConversation(account, counterpart.asBareJid(), false, false);
 967                                    final Message preExistingMessage = c.findRtpSession(sessionId, status);
 968                                    if (preExistingMessage != null) {
 969                                        preExistingMessage.setServerMsgId(serverMsgId);
 970                                        mXmppConnectionService.updateMessage(preExistingMessage);
 971                                        break;
 972                                    }
 973                                    final Message message = new Message(
 974                                            c,
 975                                            status,
 976                                            Message.TYPE_RTP_SESSION,
 977                                            sessionId
 978                                    );
 979                                    message.setServerMsgId(serverMsgId);
 980                                    message.setTime(timestamp);
 981                                    message.setBody(new RtpSessionStatus(true, 0).toString());
 982                                    if (query.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
 983                                        c.prepend(query.getActualInThisQuery(), message);
 984                                    } else {
 985                                        c.add(message);
 986                                    }
 987                                    query.incrementActualMessageCount();
 988                                    mXmppConnectionService.databaseBackend.createMessage(message);
 989                                }
 990                            }
 991                        }
 992                        break;
 993                    }
 994                }
 995            }
 996        }
 997
 998        Element received = packet.findChild("received", "urn:xmpp:chat-markers:0");
 999        if (received == null) {
1000            received = packet.findChild("received", "urn:xmpp:receipts");
1001        }
1002        if (received != null) {
1003            String id = received.getAttribute("id");
1004            if (packet.fromAccount(account)) {
1005                if (query != null && id != null && packet.getTo() != null) {
1006                    query.removePendingReceiptRequest(new ReceiptRequest(packet.getTo(), id));
1007                }
1008            } else if (id != null) {
1009                if (id.startsWith(JingleRtpConnection.JINGLE_MESSAGE_PROPOSE_ID_PREFIX)) {
1010                    final String sessionId = id.substring(JingleRtpConnection.JINGLE_MESSAGE_PROPOSE_ID_PREFIX.length());
1011                    mXmppConnectionService.getJingleConnectionManager()
1012                            .updateProposedSessionDiscovered(account, from, sessionId, JingleConnectionManager.DeviceDiscoveryState.DISCOVERED);
1013                } else {
1014                    mXmppConnectionService.markMessage(account, from.asBareJid(), id, Message.STATUS_SEND_RECEIVED);
1015                }
1016            }
1017        }
1018        final Element displayed = packet.findChild("displayed", "urn:xmpp:chat-markers:0");
1019        if (displayed != null) {
1020            final String id = displayed.getAttribute("id");
1021            final Jid sender = InvalidJid.getNullForInvalid(displayed.getAttributeAsJid("sender"));
1022            if (packet.fromAccount(account) && !selfAddressed) {
1023                final Conversation c =
1024                        mXmppConnectionService.find(account, counterpart.asBareJid());
1025                final Message message =
1026                        (c == null || id == null) ? null : c.findReceivedWithRemoteId(id);
1027                if (message != null && (query == null || query.isCatchup())) {
1028                    mXmppConnectionService.markReadUpTo(c, message);
1029                }
1030                if (query == null) {
1031                    activateGracePeriod(account);
1032                }
1033            } else if (isTypeGroupChat) {
1034                final Conversation conversation = mXmppConnectionService.find(account, counterpart.asBareJid());
1035                final Message message;
1036                if (conversation != null && id != null) {
1037                    if (sender != null) {
1038                        message = conversation.findMessageWithRemoteId(id, sender);
1039                    } else {
1040                        message = conversation.findMessageWithServerMsgId(id);
1041                    }
1042                } else {
1043                    message = null;
1044                }
1045                if (message != null) {
1046                    final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
1047                    final Jid trueJid = getTrueCounterpart((query != null && query.safeToExtractTrueCounterpart()) ? mucUserElement : null, fallback);
1048                    final boolean trueJidMatchesAccount = account.getJid().asBareJid().equals(trueJid == null ? null : trueJid.asBareJid());
1049                    if (trueJidMatchesAccount || conversation.getMucOptions().isSelf(counterpart)) {
1050                        if (!message.isRead() && (query == null || query.isCatchup())) { //checking if message is unread fixes race conditions with reflections
1051                            mXmppConnectionService.markReadUpTo(conversation, message);
1052                        }
1053                    } else if (!counterpart.isBareJid() && trueJid != null) {
1054                        final ReadByMarker readByMarker = ReadByMarker.from(counterpart, trueJid);
1055                        if (message.addReadByMarker(readByMarker)) {
1056                            final var mucOptions = conversation.getMucOptions();
1057                            final var everyone = ImmutableSet.copyOf(mucOptions.getMembers(false));
1058                            final var readyBy = message.getReadyByTrue();
1059                            final var mStatus = message.getStatus();
1060                            if (mucOptions.isPrivateAndNonAnonymous()
1061                                    && (mStatus == Message.STATUS_SEND_RECEIVED
1062                                            || mStatus == Message.STATUS_SEND)
1063                                    && readyBy.containsAll(everyone)) {
1064                                message.setStatus(Message.STATUS_SEND_DISPLAYED);
1065                            }
1066                            mXmppConnectionService.updateMessage(message, false);
1067                        }
1068                    }
1069                }
1070            } else {
1071                final Message displayedMessage = mXmppConnectionService.markMessage(account, from.asBareJid(), id, Message.STATUS_SEND_DISPLAYED);
1072                Message message = displayedMessage == null ? null : displayedMessage.prev();
1073                while (message != null
1074                        && message.getStatus() == Message.STATUS_SEND_RECEIVED
1075                        && message.getTimeSent() < displayedMessage.getTimeSent()) {
1076                    mXmppConnectionService.markMessage(message, Message.STATUS_SEND_DISPLAYED);
1077                    message = message.prev();
1078                }
1079                if (displayedMessage != null && selfAddressed) {
1080                    dismissNotification(account, counterpart, query, id);
1081                }
1082            }
1083        }
1084
1085        final Element event = original.findChild("event", "http://jabber.org/protocol/pubsub#event");
1086        if (event != null && InvalidJid.hasValidFrom(original) && original.getFrom().isBareJid()) {
1087            if (event.hasChild("items")) {
1088                parseEvent(event, original.getFrom(), account);
1089            } else if (event.hasChild("delete")) {
1090                parseDeleteEvent(event, original.getFrom(), account);
1091            } else if (event.hasChild("purge")) {
1092                parsePurgeEvent(event, original.getFrom(), account);
1093            }
1094        }
1095
1096        final String nick = packet.findChildContent("nick", Namespace.NICK);
1097        if (nick != null && InvalidJid.hasValidFrom(original)) {
1098            if (mXmppConnectionService.isMuc(account, from)) {
1099                return;
1100            }
1101            final Contact contact = account.getRoster().getContact(from);
1102            if (contact.setPresenceName(nick)) {
1103                mXmppConnectionService.syncRoster(account);
1104                mXmppConnectionService.getAvatarService().clear(contact);
1105            }
1106        }
1107    }
1108
1109    private void dismissNotification(Account account, Jid counterpart, MessageArchiveService.Query query, final String id) {
1110        final Conversation conversation = mXmppConnectionService.find(account, counterpart.asBareJid());
1111        if (conversation != null && (query == null || query.isCatchup())) {
1112            final String displayableId = conversation.findMostRecentRemoteDisplayableId();
1113            if (displayableId != null && displayableId.equals(id)) {
1114                mXmppConnectionService.markRead(conversation);
1115            } else {
1116                Log.w(Config.LOGTAG, account.getJid().asBareJid() + ": received dismissing display marker that did not match our last id in that conversation");
1117            }
1118        }
1119    }
1120
1121    private void processMessageReceipts(final Account account, final MessagePacket packet, final String remoteMsgId, MessageArchiveService.Query query) {
1122        final boolean markable = packet.hasChild("markable", "urn:xmpp:chat-markers:0");
1123        final boolean request = packet.hasChild("request", "urn:xmpp:receipts");
1124        if (query == null) {
1125            final ArrayList<String> receiptsNamespaces = new ArrayList<>();
1126            if (markable) {
1127                receiptsNamespaces.add("urn:xmpp:chat-markers:0");
1128            }
1129            if (request) {
1130                receiptsNamespaces.add("urn:xmpp:receipts");
1131            }
1132            if (receiptsNamespaces.size() > 0) {
1133                final MessagePacket receipt = mXmppConnectionService.getMessageGenerator().received(account,
1134                        packet.getFrom(),
1135                        remoteMsgId,
1136                        receiptsNamespaces,
1137                        packet.getType());
1138                mXmppConnectionService.sendMessagePacket(account, receipt);
1139            }
1140        } else if (query.isCatchup()) {
1141            if (request) {
1142                query.addPendingReceiptRequest(new ReceiptRequest(packet.getFrom(), remoteMsgId));
1143            }
1144        }
1145    }
1146
1147    private void activateGracePeriod(Account account) {
1148        long duration = mXmppConnectionService.getLongPreference("grace_period_length", R.integer.grace_period) * 1000;
1149        Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": activating grace period till " + TIME_FORMAT.format(new Date(System.currentTimeMillis() + duration)));
1150        account.activateGracePeriod(duration);
1151    }
1152
1153    private class Invite {
1154        final Jid jid;
1155        final String password;
1156        final boolean direct;
1157        final Jid inviter;
1158
1159        Invite(Jid jid, String password, boolean direct, Jid inviter) {
1160            this.jid = jid;
1161            this.password = password;
1162            this.direct = direct;
1163            this.inviter = inviter;
1164        }
1165
1166        public boolean execute(final Account account) {
1167            if (this.jid == null) {
1168                return false;
1169            }
1170            final Contact contact =
1171                    this.inviter != null ? account.getRoster().getContact(this.inviter) : null;
1172            if (contact != null && contact.isBlocked()) {
1173                Log.d(
1174                        Config.LOGTAG,
1175                        account.getJid().asBareJid()
1176                                + ": ignore invite from "
1177                                + contact.getJid()
1178                                + " because contact is blocked");
1179                return false;
1180            }
1181            final AppSettings appSettings = new AppSettings(mXmppConnectionService);
1182            if ((contact != null && contact.showInContactList())
1183                    || appSettings.isAcceptInvitesFromStrangers()) {
1184                final Conversation conversation =
1185                        mXmppConnectionService.findOrCreateConversation(account, jid, true, false);
1186                if (conversation.getMucOptions().online()) {
1187                    Log.d(
1188                            Config.LOGTAG,
1189                            account.getJid().asBareJid()
1190                                    + ": received invite to "
1191                                    + jid
1192                                    + " but muc is considered to be online");
1193                    mXmppConnectionService.mucSelfPingAndRejoin(conversation);
1194                } else {
1195                    conversation.getMucOptions().setPassword(password);
1196                    mXmppConnectionService.databaseBackend.updateConversation(conversation);
1197                    mXmppConnectionService.joinMuc(
1198                            conversation, contact != null && contact.showInContactList());
1199                    mXmppConnectionService.updateConversationUi();
1200                }
1201                return true;
1202            } else {
1203                Log.d(
1204                        Config.LOGTAG,
1205                        account.getJid().asBareJid()
1206                                + ": ignoring invite from "
1207                                + this.inviter
1208                                + " because we are not accepting invites from strangers. direct="
1209                                + direct);
1210                return false;
1211            }
1212        }
1213    }
1214}