Examples with XmppAxolotlMessage eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage used on opensource projects

Example 1 with XmppAxolotlMessage

use of eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage in project Conversations by siacs.

the class JingleConnection method init.

public void init(final Message message) {
    if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL) {
        Conversation conversation = message.getConversation();
        conversation.getAccount().getAxolotlService().prepareKeyTransportMessage(conversation, new OnMessageCreatedCallback() {

            @Override
            public void run(XmppAxolotlMessage xmppAxolotlMessage) {
                if (xmppAxolotlMessage != null) {
                    init(message, xmppAxolotlMessage);
                } else {
                    fail();
                }
            }
        });
    } else {
        init(message, null);
    }
}

Example 2 with XmppAxolotlMessage

use of eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage in project Conversations by siacs.

the class XmppConnectionService method sendMessage.

private void sendMessage(final Message message, final boolean resend, final boolean delay) {
    final Account account = message.getConversation().getAccount();
    if (account.setShowErrorNotification(true)) {
        databaseBackend.updateAccount(account);
        mNotificationService.updateErrorNotification();
    }
    final Conversation conversation = (Conversation) message.getConversation();
    account.deactivateGracePeriod();
    if (QuickConversationsService.isQuicksy() && conversation.getMode() == Conversation.MODE_SINGLE) {
        final Contact contact = conversation.getContact();
        if (!contact.showInRoster() && contact.getOption(Contact.Options.SYNCED_VIA_OTHER)) {
            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": adding " + contact.getJid() + " on sending message");
            createContact(contact, true);
        }
    }
    MessagePacket packet = null;
    final boolean addToConversation = (conversation.getMode() != Conversation.MODE_MULTI || !Patches.BAD_MUC_REFLECTION.contains(account.getServerIdentity())) && !message.edited();
    boolean saveInDb = addToConversation;
    message.setStatus(Message.STATUS_WAITING);
    if (message.getEncryption() != Message.ENCRYPTION_NONE && conversation.getMode() == Conversation.MODE_MULTI && conversation.isPrivateAndNonAnonymous()) {
        if (conversation.setAttribute(Conversation.ATTRIBUTE_FORMERLY_PRIVATE_NON_ANONYMOUS, true)) {
            databaseBackend.updateConversation(conversation);
        }
    }
    final boolean inProgressJoin = isJoinInProgress(conversation);
    if (account.isOnlineAndConnected() && !inProgressJoin) {
        switch(message.getEncryption()) {
            case Message.ENCRYPTION_NONE:
                if (message.needsUploading()) {
                    if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize()) || conversation.getMode() == Conversation.MODE_MULTI || message.fixCounterpart()) {
                        this.sendFileMessage(message, delay);
                    } else {
                        break;
                    }
                } else {
                    packet = mMessageGenerator.generateChat(message);
                }
                break;
            case Message.ENCRYPTION_PGP:
            case Message.ENCRYPTION_DECRYPTED:
                if (message.needsUploading()) {
                    if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize()) || conversation.getMode() == Conversation.MODE_MULTI || message.fixCounterpart()) {
                        this.sendFileMessage(message, delay);
                    } else {
                        break;
                    }
                } else {
                    packet = mMessageGenerator.generatePgpChat(message);
                }
                break;
            case Message.ENCRYPTION_AXOLOTL:
                message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
                if (message.needsUploading()) {
                    if (account.httpUploadAvailable(fileBackend.getFile(message, false).getSize()) || conversation.getMode() == Conversation.MODE_MULTI || message.fixCounterpart()) {
                        this.sendFileMessage(message, delay);
                    } else {
                        break;
                    }
                } else {
                    XmppAxolotlMessage axolotlMessage = account.getAxolotlService().fetchAxolotlMessageFromCache(message);
                    if (axolotlMessage == null) {
                        account.getAxolotlService().preparePayloadMessage(message, delay);
                    } else {
                        packet = mMessageGenerator.generateAxolotlChat(message, axolotlMessage);
                    }
                }
                break;
        }
        if (packet != null) {
            if (account.getXmppConnection().getFeatures().sm() || (conversation.getMode() == Conversation.MODE_MULTI && message.getCounterpart().isBareJid())) {
                message.setStatus(Message.STATUS_UNSEND);
            } else {
                message.setStatus(Message.STATUS_SEND);
            }
        }
    } else {
        switch(message.getEncryption()) {
            case Message.ENCRYPTION_DECRYPTED:
                if (!message.needsUploading()) {
                    String pgpBody = message.getEncryptedBody();
                    String decryptedBody = message.getBody();
                    // TODO might throw NPE
                    message.setBody(pgpBody);
                    message.setEncryption(Message.ENCRYPTION_PGP);
                    if (message.edited()) {
                        message.setBody(decryptedBody);
                        message.setEncryption(Message.ENCRYPTION_DECRYPTED);
                        if (!databaseBackend.updateMessage(message, message.getEditedId())) {
                            Log.e(Config.LOGTAG, "error updated message in DB after edit");
                        }
                        updateConversationUi();
                        return;
                    } else {
                        databaseBackend.createMessage(message);
                        saveInDb = false;
                        message.setBody(decryptedBody);
                        message.setEncryption(Message.ENCRYPTION_DECRYPTED);
                    }
                }
                break;
            case Message.ENCRYPTION_AXOLOTL:
                message.setFingerprint(account.getAxolotlService().getOwnFingerprint());
                break;
        }
    }
    boolean mucMessage = conversation.getMode() == Conversation.MODE_MULTI && !message.isPrivateMessage();
    if (mucMessage) {
        message.setCounterpart(conversation.getMucOptions().getSelf().getFullJid());
    }
    if (resend) {
        if (packet != null && addToConversation) {
            if (account.getXmppConnection().getFeatures().sm() || mucMessage) {
                markMessage(message, Message.STATUS_UNSEND);
            } else {
                markMessage(message, Message.STATUS_SEND);
            }
        }
    } else {
        if (addToConversation) {
            conversation.add(message);
        }
        if (saveInDb) {
            databaseBackend.createMessage(message);
        } else if (message.edited()) {
            if (!databaseBackend.updateMessage(message, message.getEditedId())) {
                Log.e(Config.LOGTAG, "error updated message in DB after edit");
            }
        }
        updateConversationUi();
    }
    if (packet != null) {
        if (delay) {
            mMessageGenerator.addDelay(packet, message.getTimeSent());
        }
        if (conversation.setOutgoingChatState(Config.DEFAULT_CHAT_STATE)) {
            if (this.sendChatStates()) {
                packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
            }
        }
        sendMessagePacket(account, packet);
    }
}

Example 3 with XmppAxolotlMessage

use of eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage in project Conversations by siacs.

the class MessageParser method parseAxolotlChat.

private Message parseAxolotlChat(Element axolotlMessage, Jid from, Conversation conversation, int status, final boolean checkedForDuplicates, boolean postpone) {
    final AxolotlService service = conversation.getAccount().getAxolotlService();
    final XmppAxolotlMessage xmppAxolotlMessage;
    try {
        xmppAxolotlMessage = XmppAxolotlMessage.fromElement(axolotlMessage, from.asBareJid());
    } catch (Exception e) {
        Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": invalid omemo message received " + e.getMessage());
        return null;
    }
    if (xmppAxolotlMessage.hasPayload()) {
        final XmppAxolotlMessage.XmppAxolotlPlaintextMessage plaintextMessage;
        try {
            plaintextMessage = service.processReceivingPayloadMessage(xmppAxolotlMessage, postpone);
        } catch (BrokenSessionException e) {
            if (checkedForDuplicates) {
                if (service.trustedOrPreviouslyResponded(from.asBareJid())) {
                    service.reportBrokenSessionException(e, postpone);
                    return new Message(conversation, "", Message.ENCRYPTION_AXOLOTL_FAILED, status);
                } else {
                    Log.d(Config.LOGTAG, "ignoring broken session exception because contact was not trusted");
                    return new Message(conversation, "", Message.ENCRYPTION_AXOLOTL_FAILED, status);
                }
            } else {
                Log.d(Config.LOGTAG, "ignoring broken session exception because checkForDuplicates failed");
                return null;
            }
        } catch (NotEncryptedForThisDeviceException e) {
            return new Message(conversation, "", Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE, status);
        } catch (OutdatedSenderException e) {
            return new Message(conversation, "", Message.ENCRYPTION_AXOLOTL_FAILED, status);
        }
        if (plaintextMessage != null) {
            Message finishedMessage = new Message(conversation, plaintextMessage.getPlaintext(), Message.ENCRYPTION_AXOLOTL, status);
            finishedMessage.setFingerprint(plaintextMessage.getFingerprint());
            Log.d(Config.LOGTAG, AxolotlService.getLogprefix(finishedMessage.getConversation().getAccount()) + " Received Message with session fingerprint: " + plaintextMessage.getFingerprint());
            return finishedMessage;
        }
    } else {
        Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": received OMEMO key transport message");
        service.processReceivingKeyTransportMessage(xmppAxolotlMessage, postpone);
    }
    return null;
}

Example 4 with XmppAxolotlMessage

use of eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage in project Conversations by siacs.

the class MessageParser method parseAxolotlChat.

private Message parseAxolotlChat(Element axolotlMessage, Jid from, Conversation conversation, int status) {
    AxolotlService service = conversation.getAccount().getAxolotlService();
    XmppAxolotlMessage xmppAxolotlMessage;
    try {
        xmppAxolotlMessage = XmppAxolotlMessage.fromElement(axolotlMessage, from.toBareJid());
    } catch (Exception e) {
        Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": invalid omemo message received " + e.getMessage());
        return null;
    }
    XmppAxolotlMessage.XmppAxolotlPlaintextMessage plaintextMessage = service.processReceivingPayloadMessage(xmppAxolotlMessage);
    if (plaintextMessage != null) {
        Message finishedMessage = new Message(conversation, plaintextMessage.getPlaintext(), Message.ENCRYPTION_AXOLOTL, status);
        finishedMessage.setFingerprint(plaintextMessage.getFingerprint());
        Log.d(Config.LOGTAG, AxolotlService.getLogprefix(finishedMessage.getConversation().getAccount()) + " Received Message with session fingerprint: " + plaintextMessage.getFingerprint());
        return finishedMessage;
    } else {
        return null;
    }
}

Example 5 with XmppAxolotlMessage

use of eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage in project Conversations by siacs.

the class MessageParser method onMessagePacketReceived.

@Override
public void onMessagePacketReceived(Account account, MessagePacket original) {
    if (handleErrorMessage(account, original)) {
        return;
    }
    final MessagePacket packet;
    Long timestamp = null;
    boolean isCarbon = false;
    String serverMsgId = null;
    final Element fin = original.findChild("fin", MessageArchiveService.Version.MAM_0.namespace);
    if (fin != null) {
        mXmppConnectionService.getMessageArchiveService().processFinLegacy(fin, original.getFrom());
        return;
    }
    final Element result = MessageArchiveService.Version.findResult(original);
    final String queryId = result == null ? null : result.getAttribute("queryid");
    final MessageArchiveService.Query query = queryId == null ? null : mXmppConnectionService.getMessageArchiveService().findQuery(queryId);
    if (query != null && query.validFrom(original.getFrom())) {
        final Pair<MessagePacket, Long> f = original.getForwardedMessagePacket("result", query.version.namespace);
        if (f == null) {
            return;
        }
        timestamp = f.second;
        packet = f.first;
        serverMsgId = result.getAttribute("id");
        query.incrementMessageCount();
        if (handleErrorMessage(account, packet)) {
            return;
        }
    } else if (query != null) {
        Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received mam result with invalid from (" + original.getFrom() + ") or queryId (" + queryId + ")");
        return;
    } else if (original.fromServer(account)) {
        Pair<MessagePacket, Long> f;
        f = original.getForwardedMessagePacket("received", "urn:xmpp:carbons:2");
        f = f == null ? original.getForwardedMessagePacket("sent", "urn:xmpp:carbons:2") : f;
        packet = f != null ? f.first : original;
        if (handleErrorMessage(account, packet)) {
            return;
        }
        timestamp = f != null ? f.second : null;
        isCarbon = f != null;
    } else {
        packet = original;
    }
    if (timestamp == null) {
        timestamp = AbstractParser.parseTimestamp(original, AbstractParser.parseTimestamp(packet));
    }
    final LocalizedContent body = packet.getBody();
    final Element mucUserElement = packet.findChild("x", Namespace.MUC_USER);
    final String pgpEncrypted = packet.findChildContent("x", "jabber:x:encrypted");
    final Element replaceElement = packet.findChild("replace", "urn:xmpp:message-correct:0");
    final Element oob = packet.findChild("x", Namespace.OOB);
    final String oobUrl = oob != null ? oob.findChildContent("url") : null;
    final String replacementId = replaceElement == null ? null : replaceElement.getAttribute("id");
    final Element axolotlEncrypted = packet.findChildEnsureSingle(XmppAxolotlMessage.CONTAINERTAG, AxolotlService.PEP_PREFIX);
    int status;
    final Jid counterpart;
    final Jid to = packet.getTo();
    final Jid from = packet.getFrom();
    final Element originId = packet.findChild("origin-id", Namespace.STANZA_IDS);
    final String remoteMsgId;
    if (originId != null && originId.getAttribute("id") != null) {
        remoteMsgId = originId.getAttribute("id");
    } else {
        remoteMsgId = packet.getId();
    }
    boolean notify = false;
    if (from == null || !InvalidJid.isValid(from) || !InvalidJid.isValid(to)) {
        Log.e(Config.LOGTAG, "encountered invalid message from='" + from + "' to='" + to + "'");
        return;
    }
    boolean isTypeGroupChat = packet.getType() == MessagePacket.TYPE_GROUPCHAT;
    if (query != null && !query.muc() && isTypeGroupChat) {
        Log.e(Config.LOGTAG, account.getJid().asBareJid() + ": received groupchat (" + from + ") message on regular MAM request. skipping");
        return;
    }
    boolean isMucStatusMessage = InvalidJid.hasValidFrom(packet) && from.isBareJid() && mucUserElement != null && mucUserElement.hasChild("status");
    boolean selfAddressed;
    if (packet.fromAccount(account)) {
        status = Message.STATUS_SEND;
        selfAddressed = to == null || account.getJid().asBareJid().equals(to.asBareJid());
        if (selfAddressed) {
            counterpart = from;
        } else {
            counterpart = to != null ? to : account.getJid();
        }
    } else {
        status = Message.STATUS_RECEIVED;
        counterpart = from;
        selfAddressed = false;
    }
    final Invite invite = extractInvite(packet);
    if (invite != null) {
        if (isTypeGroupChat) {
            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": ignoring invite to " + invite.jid + " because type=groupchat");
        } else if (invite.direct && (mucUserElement != null || invite.inviter == null || mXmppConnectionService.isMuc(account, invite.inviter))) {
            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": ignoring direct invite to " + invite.jid + " because it was received in MUC");
        } else {
            invite.execute(account);
            return;
        }
    }
    if ((body != null || pgpEncrypted != null || (axolotlEncrypted != null && axolotlEncrypted.hasChild("payload")) || oobUrl != null) && !isMucStatusMessage) {
        final boolean conversationIsProbablyMuc = isTypeGroupChat || mucUserElement != null || account.getXmppConnection().getMucServersWithholdAccount().contains(counterpart.getDomain().toEscapedString());
        final Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, counterpart.asBareJid(), conversationIsProbablyMuc, false, query, false);
        final boolean conversationMultiMode = conversation.getMode() == Conversation.MODE_MULTI;
        if (serverMsgId == null) {
            serverMsgId = extractStanzaId(packet, isTypeGroupChat, conversation);
        }
        if (selfAddressed) {
            if (mXmppConnectionService.markMessage(conversation, remoteMsgId, Message.STATUS_SEND_RECEIVED, serverMsgId)) {
                return;
            }
            status = Message.STATUS_RECEIVED;
            if (remoteMsgId != null && conversation.findMessageWithRemoteId(remoteMsgId, counterpart) != null) {
                return;
            }
        }
        if (isTypeGroupChat) {
            if (conversation.getMucOptions().isSelf(counterpart)) {
                status = Message.STATUS_SEND_RECEIVED;
                // not really carbon but received from another resource
                isCarbon = true;
                if (mXmppConnectionService.markMessage(conversation, remoteMsgId, status, serverMsgId, body)) {
                    return;
                } else if (remoteMsgId == null || Config.IGNORE_ID_REWRITE_IN_MUC) {
                    if (body != null) {
                        Message message = conversation.findSentMessageWithBody(body.content);
                        if (message != null) {
                            mXmppConnectionService.markMessage(message, status);
                            return;
                        }
                    }
                }
            } else {
                status = Message.STATUS_RECEIVED;
            }
        }
        final Message message;
        if (pgpEncrypted != null && Config.supportOpenPgp()) {
            message = new Message(conversation, pgpEncrypted, Message.ENCRYPTION_PGP, status);
        } else if (axolotlEncrypted != null && Config.supportOmemo()) {
            Jid origin;
            Set<Jid> fallbacksBySourceId = Collections.emptySet();
            if (conversationMultiMode) {
                final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
                origin = getTrueCounterpart(query != null ? mucUserElement : null, fallback);
                if (origin == null) {
                    try {
                        fallbacksBySourceId = account.getAxolotlService().findCounterpartsBySourceId(XmppAxolotlMessage.parseSourceId(axolotlEncrypted));
                    } catch (IllegalArgumentException e) {
                    // ignoring
                    }
                }
                if (origin == null && fallbacksBySourceId.size() == 0) {
                    Log.d(Config.LOGTAG, "axolotl message in anonymous conference received and no possible fallbacks");
                    return;
                }
            } else {
                fallbacksBySourceId = Collections.emptySet();
                origin = from;
            }
            final boolean liveMessage = query == null && !isTypeGroupChat && mucUserElement == null;
            final boolean checkedForDuplicates = liveMessage || (serverMsgId != null && remoteMsgId != null && !conversation.possibleDuplicate(serverMsgId, remoteMsgId));
            if (origin != null) {
                message = parseAxolotlChat(axolotlEncrypted, origin, conversation, status, checkedForDuplicates, query != null);
            } else {
                Message trial = null;
                for (Jid fallback : fallbacksBySourceId) {
                    trial = parseAxolotlChat(axolotlEncrypted, fallback, conversation, status, checkedForDuplicates && fallbacksBySourceId.size() == 1, query != null);
                    if (trial != null) {
                        Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": decoded muc message using fallback");
                        origin = fallback;
                        break;
                    }
                }
                message = trial;
            }
            if (message == null) {
                if (query == null && extractChatState(mXmppConnectionService.find(account, counterpart.asBareJid()), isTypeGroupChat, packet)) {
                    mXmppConnectionService.updateConversationUi();
                }
                if (query != null && status == Message.STATUS_SEND && remoteMsgId != null) {
                    Message previouslySent = conversation.findSentMessageWithUuid(remoteMsgId);
                    if (previouslySent != null && previouslySent.getServerMsgId() == null && serverMsgId != null) {
                        previouslySent.setServerMsgId(serverMsgId);
                        mXmppConnectionService.databaseBackend.updateMessage(previouslySent, false);
                        Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": encountered previously sent OMEMO message without serverId. updating...");
                    }
                }
                return;
            }
            if (conversationMultiMode) {
                message.setTrueCounterpart(origin);
            }
        } else if (body == null && oobUrl != null) {
            message = new Message(conversation, oobUrl, Message.ENCRYPTION_NONE, status);
            message.setOob(true);
            if (CryptoHelper.isPgpEncryptedUrl(oobUrl)) {
                message.setEncryption(Message.ENCRYPTION_DECRYPTED);
            }
        } else {
            message = new Message(conversation, body.content, Message.ENCRYPTION_NONE, status);
            if (body.count > 1) {
                message.setBodyLanguage(body.language);
            }
        }
        message.setCounterpart(counterpart);
        message.setRemoteMsgId(remoteMsgId);
        message.setServerMsgId(serverMsgId);
        message.setCarbon(isCarbon);
        message.setTime(timestamp);
        if (body != null && body.content != null && body.content.equals(oobUrl)) {
            message.setOob(true);
            if (CryptoHelper.isPgpEncryptedUrl(oobUrl)) {
                message.setEncryption(Message.ENCRYPTION_DECRYPTED);
            }
        }
        message.markable = packet.hasChild("markable", "urn:xmpp:chat-markers:0");
        if (conversationMultiMode) {
            message.setMucUser(conversation.getMucOptions().findUserByFullJid(counterpart));
            final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
            Jid trueCounterpart;
            if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL) {
                trueCounterpart = message.getTrueCounterpart();
            } else if (query != null && query.safeToExtractTrueCounterpart()) {
                trueCounterpart = getTrueCounterpart(mucUserElement, fallback);
            } else {
                trueCounterpart = fallback;
            }
            if (trueCounterpart != null && isTypeGroupChat) {
                if (trueCounterpart.asBareJid().equals(account.getJid().asBareJid())) {
                    status = isTypeGroupChat ? Message.STATUS_SEND_RECEIVED : Message.STATUS_SEND;
                } else {
                    status = Message.STATUS_RECEIVED;
                    message.setCarbon(false);
                }
            }
            message.setStatus(status);
            message.setTrueCounterpart(trueCounterpart);
            if (!isTypeGroupChat) {
                message.setType(Message.TYPE_PRIVATE);
            }
        } else {
            updateLastseen(account, from);
        }
        if (replacementId != null && mXmppConnectionService.allowMessageCorrection()) {
            final Message replacedMessage = conversation.findMessageWithRemoteIdAndCounterpart(replacementId, counterpart, message.getStatus() == Message.STATUS_RECEIVED, message.isCarbon());
            if (replacedMessage != null) {
                final boolean fingerprintsMatch = replacedMessage.getFingerprint() == null || replacedMessage.getFingerprint().equals(message.getFingerprint());
                final boolean trueCountersMatch = replacedMessage.getTrueCounterpart() != null && message.getTrueCounterpart() != null && replacedMessage.getTrueCounterpart().asBareJid().equals(message.getTrueCounterpart().asBareJid());
                // can not be checked when using mam
                final boolean mucUserMatches = query == null && replacedMessage.sameMucUser(message);
                final boolean duplicate = conversation.hasDuplicateMessage(message);
                if (fingerprintsMatch && (trueCountersMatch || !conversationMultiMode || mucUserMatches) && !duplicate) {
                    Log.d(Config.LOGTAG, "replaced message '" + replacedMessage.getBody() + "' with '" + message.getBody() + "'");
                    synchronized (replacedMessage) {
                        final String uuid = replacedMessage.getUuid();
                        replacedMessage.setUuid(UUID.randomUUID().toString());
                        replacedMessage.setBody(message.getBody());
                        replacedMessage.putEdited(replacedMessage.getRemoteMsgId(), replacedMessage.getServerMsgId());
                        replacedMessage.setRemoteMsgId(remoteMsgId);
                        if (replacedMessage.getServerMsgId() == null || message.getServerMsgId() != null) {
                            replacedMessage.setServerMsgId(message.getServerMsgId());
                        }
                        replacedMessage.setEncryption(message.getEncryption());
                        if (replacedMessage.getStatus() == Message.STATUS_RECEIVED) {
                            replacedMessage.markUnread();
                        }
                        extractChatState(mXmppConnectionService.find(account, counterpart.asBareJid()), isTypeGroupChat, packet);
                        mXmppConnectionService.updateMessage(replacedMessage, uuid);
                        if (mXmppConnectionService.confirmMessages() && replacedMessage.getStatus() == Message.STATUS_RECEIVED && // TODO do we really want to send receipts for all PMs?
                        (replacedMessage.trusted() || replacedMessage.isPrivateMessage()) && remoteMsgId != null && !selfAddressed && !isTypeGroupChat) {
                            processMessageReceipts(account, packet, remoteMsgId, query);
                        }
                        if (replacedMessage.getEncryption() == Message.ENCRYPTION_PGP) {
                            conversation.getAccount().getPgpDecryptionService().discard(replacedMessage);
                            conversation.getAccount().getPgpDecryptionService().decrypt(replacedMessage, false);
                        }
                    }
                    mXmppConnectionService.getNotificationService().updateNotification();
                    return;
                } else {
                    Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received message correction but verification didn't check out");
                }
            }
        }
        long deletionDate = mXmppConnectionService.getAutomaticMessageDeletionDate();
        if (deletionDate != 0 && message.getTimeSent() < deletionDate) {
            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": skipping message from " + message.getCounterpart().toString() + " because it was sent prior to our deletion date");
            return;
        }
        boolean checkForDuplicates = (isTypeGroupChat && packet.hasChild("delay", "urn:xmpp:delay")) || message.isPrivateMessage() || message.getServerMsgId() != null || (query == null && mXmppConnectionService.getMessageArchiveService().isCatchupInProgress(conversation));
        if (checkForDuplicates) {
            final Message duplicate = conversation.findDuplicateMessage(message);
            if (duplicate != null) {
                final boolean serverMsgIdUpdated;
                if (duplicate.getStatus() != Message.STATUS_RECEIVED && duplicate.getUuid().equals(message.getRemoteMsgId()) && duplicate.getServerMsgId() == null && message.getServerMsgId() != null) {
                    duplicate.setServerMsgId(message.getServerMsgId());
                    if (mXmppConnectionService.databaseBackend.updateMessage(duplicate, false)) {
                        serverMsgIdUpdated = true;
                    } else {
                        serverMsgIdUpdated = false;
                        Log.e(Config.LOGTAG, "failed to update message");
                    }
                } else {
                    serverMsgIdUpdated = false;
                }
                Log.d(Config.LOGTAG, "skipping duplicate message with " + message.getCounterpart() + ". serverMsgIdUpdated=" + serverMsgIdUpdated);
                return;
            }
        }
        if (query != null && query.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
            conversation.prepend(query.getActualInThisQuery(), message);
        } else {
            conversation.add(message);
        }
        if (query != null) {
            query.incrementActualMessageCount();
        }
        if (query == null || query.isCatchup()) {
            // either no mam or catchup
            if (status == Message.STATUS_SEND || status == Message.STATUS_SEND_RECEIVED) {
                mXmppConnectionService.markRead(conversation);
                if (query == null) {
                    activateGracePeriod(account);
                }
            } else {
                message.markUnread();
                notify = true;
            }
        }
        if (message.getEncryption() == Message.ENCRYPTION_PGP) {
            notify = conversation.getAccount().getPgpDecryptionService().decrypt(message, notify);
        } else if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE || message.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
            notify = false;
        }
        if (query == null) {
            extractChatState(mXmppConnectionService.find(account, counterpart.asBareJid()), isTypeGroupChat, packet);
            mXmppConnectionService.updateConversationUi();
        }
        if (mXmppConnectionService.confirmMessages() && message.getStatus() == Message.STATUS_RECEIVED && (message.trusted() || message.isPrivateMessage()) && remoteMsgId != null && !selfAddressed && !isTypeGroupChat) {
            processMessageReceipts(account, packet, remoteMsgId, query);
        }
        mXmppConnectionService.databaseBackend.createMessage(message);
        final HttpConnectionManager manager = this.mXmppConnectionService.getHttpConnectionManager();
        if (message.trusted() && message.treatAsDownloadable() && manager.getAutoAcceptFileSize() > 0) {
            manager.createNewDownloadConnection(message);
        } else if (notify) {
            if (query != null && query.isCatchup()) {
                mXmppConnectionService.getNotificationService().pushFromBacklog(message);
            } else {
                mXmppConnectionService.getNotificationService().push(message);
            }
        }
    } else if (!packet.hasChild("body")) {
        // no body
        final Conversation conversation = mXmppConnectionService.find(account, from.asBareJid());
        if (axolotlEncrypted != null) {
            Jid origin;
            if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
                final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
                origin = getTrueCounterpart(query != null ? mucUserElement : null, fallback);
                if (origin == null) {
                    Log.d(Config.LOGTAG, "omemo key transport message in anonymous conference received");
                    return;
                }
            } else if (isTypeGroupChat) {
                return;
            } else {
                origin = from;
            }
            try {
                final XmppAxolotlMessage xmppAxolotlMessage = XmppAxolotlMessage.fromElement(axolotlEncrypted, origin.asBareJid());
                account.getAxolotlService().processReceivingKeyTransportMessage(xmppAxolotlMessage, query != null);
                Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": omemo key transport message received from " + origin);
            } catch (Exception e) {
                Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": invalid omemo key transport message received " + e.getMessage());
                return;
            }
        }
        if (query == null && extractChatState(mXmppConnectionService.find(account, counterpart.asBareJid()), isTypeGroupChat, packet)) {
            mXmppConnectionService.updateConversationUi();
        }
        if (isTypeGroupChat) {
            if (packet.hasChild("subject")) {
                // TODO usually we would want to check for lack of body; however some servers do set a body :(
                if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
                    conversation.setHasMessagesLeftOnServer(conversation.countMessages() > 0);
                    final LocalizedContent subject = packet.findInternationalizedChildContentInDefaultNamespace("subject");
                    if (subject != null && conversation.getMucOptions().setSubject(subject.content)) {
                        mXmppConnectionService.updateConversation(conversation);
                    }
                    mXmppConnectionService.updateConversationUi();
                    return;
                }
            }
        }
        if (conversation != null && mucUserElement != null && InvalidJid.hasValidFrom(packet) && from.isBareJid()) {
            for (Element child : mucUserElement.getChildren()) {
                if ("status".equals(child.getName())) {
                    try {
                        int code = Integer.parseInt(child.getAttribute("code"));
                        if ((code >= 170 && code <= 174) || (code >= 102 && code <= 104)) {
                            mXmppConnectionService.fetchConferenceConfiguration(conversation);
                            break;
                        }
                    } catch (Exception e) {
                    // ignored
                    }
                } else if ("item".equals(child.getName())) {
                    MucOptions.User user = AbstractParser.parseItem(conversation, child);
                    Log.d(Config.LOGTAG, account.getJid() + ": changing affiliation for " + user.getRealJid() + " to " + user.getAffiliation() + " in " + conversation.getJid().asBareJid());
                    if (!user.realJidMatchesAccount()) {
                        boolean isNew = conversation.getMucOptions().updateUser(user);
                        mXmppConnectionService.getAvatarService().clear(conversation);
                        mXmppConnectionService.updateMucRosterUi();
                        mXmppConnectionService.updateConversationUi();
                        Contact contact = user.getContact();
                        if (!user.getAffiliation().ranks(MucOptions.Affiliation.MEMBER)) {
                            Jid jid = user.getRealJid();
                            List<Jid> cryptoTargets = conversation.getAcceptedCryptoTargets();
                            if (cryptoTargets.remove(user.getRealJid())) {
                                Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": removed " + jid + " from crypto targets of " + conversation.getName());
                                conversation.setAcceptedCryptoTargets(cryptoTargets);
                                mXmppConnectionService.updateConversation(conversation);
                            }
                        } else if (isNew && user.getRealJid() != null && conversation.getMucOptions().isPrivateAndNonAnonymous() && (contact == null || !contact.mutualPresenceSubscription()) && account.getAxolotlService().hasEmptyDeviceList(user.getRealJid())) {
                            account.getAxolotlService().fetchDeviceIds(user.getRealJid());
                        }
                    }
                }
            }
        }
        if (!isTypeGroupChat) {
            for (Element child : packet.getChildren()) {
                if (Namespace.JINGLE_MESSAGE.equals(child.getNamespace()) && JINGLE_MESSAGE_ELEMENT_NAMES.contains(child.getName())) {
                    final String action = child.getName();
                    final String sessionId = child.getAttribute("id");
                    if (sessionId == null) {
                        break;
                    }
                    if (query == null) {
                        if (serverMsgId == null) {
                            serverMsgId = extractStanzaId(account, packet);
                        }
                        mXmppConnectionService.getJingleConnectionManager().deliverMessage(account, packet.getTo(), packet.getFrom(), child, remoteMsgId, serverMsgId, timestamp);
                        if (!account.getJid().asBareJid().equals(from.asBareJid()) && remoteMsgId != null) {
                            processMessageReceipts(account, packet, remoteMsgId, query);
                        }
                    } else if (query.isCatchup()) {
                        if ("propose".equals(action)) {
                            final Element description = child.findChild("description");
                            final String namespace = description == null ? null : description.getNamespace();
                            if (Namespace.JINGLE_APPS_RTP.equals(namespace)) {
                                final Conversation c = mXmppConnectionService.findOrCreateConversation(account, counterpart.asBareJid(), false, false);
                                final Message preExistingMessage = c.findRtpSession(sessionId, status);
                                if (preExistingMessage != null) {
                                    preExistingMessage.setServerMsgId(serverMsgId);
                                    mXmppConnectionService.updateMessage(preExistingMessage);
                                    break;
                                }
                                final Message message = new Message(c, status, Message.TYPE_RTP_SESSION, sessionId);
                                message.setServerMsgId(serverMsgId);
                                message.setTime(timestamp);
                                message.setBody(new RtpSessionStatus(false, 0).toString());
                                c.add(message);
                                mXmppConnectionService.databaseBackend.createMessage(message);
                            }
                        } else if ("proceed".equals(action)) {
                            // status needs to be flipped to find the original propose
                            final Conversation c = mXmppConnectionService.findOrCreateConversation(account, counterpart.asBareJid(), false, false);
                            final int s = packet.fromAccount(account) ? Message.STATUS_RECEIVED : Message.STATUS_SEND;
                            final Message message = c.findRtpSession(sessionId, s);
                            if (message != null) {
                                message.setBody(new RtpSessionStatus(true, 0).toString());
                                if (serverMsgId != null) {
                                    message.setServerMsgId(serverMsgId);
                                }
                                message.setTime(timestamp);
                                mXmppConnectionService.updateMessage(message, true);
                            } else {
                                Log.d(Config.LOGTAG, "unable to find original rtp session message for received propose");
                            }
                        }
                    } else {
                        // MAM reloads (non catchups
                        if ("propose".equals(action)) {
                            final Element description = child.findChild("description");
                            final String namespace = description == null ? null : description.getNamespace();
                            if (Namespace.JINGLE_APPS_RTP.equals(namespace)) {
                                final Conversation c = mXmppConnectionService.findOrCreateConversation(account, counterpart.asBareJid(), false, false);
                                final Message preExistingMessage = c.findRtpSession(sessionId, status);
                                if (preExistingMessage != null) {
                                    preExistingMessage.setServerMsgId(serverMsgId);
                                    mXmppConnectionService.updateMessage(preExistingMessage);
                                    break;
                                }
                                final Message message = new Message(c, status, Message.TYPE_RTP_SESSION, sessionId);
                                message.setServerMsgId(serverMsgId);
                                message.setTime(timestamp);
                                message.setBody(new RtpSessionStatus(true, 0).toString());
                                if (query.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
                                    c.prepend(query.getActualInThisQuery(), message);
                                } else {
                                    c.add(message);
                                }
                                query.incrementActualMessageCount();
                                mXmppConnectionService.databaseBackend.createMessage(message);
                            }
                        }
                    }
                    break;
                }
            }
        }
    }
    Element received = packet.findChild("received", "urn:xmpp:chat-markers:0");
    if (received == null) {
        received = packet.findChild("received", "urn:xmpp:receipts");
    }
    if (received != null) {
        String id = received.getAttribute("id");
        if (packet.fromAccount(account)) {
            if (query != null && id != null && packet.getTo() != null) {
                query.removePendingReceiptRequest(new ReceiptRequest(packet.getTo(), id));
            }
        } else if (id != null) {
            if (id.startsWith(JingleRtpConnection.JINGLE_MESSAGE_PROPOSE_ID_PREFIX)) {
                final String sessionId = id.substring(JingleRtpConnection.JINGLE_MESSAGE_PROPOSE_ID_PREFIX.length());
                mXmppConnectionService.getJingleConnectionManager().updateProposedSessionDiscovered(account, from, sessionId, JingleConnectionManager.DeviceDiscoveryState.DISCOVERED);
            } else {
                mXmppConnectionService.markMessage(account, from.asBareJid(), id, Message.STATUS_SEND_RECEIVED);
            }
        }
    }
    Element displayed = packet.findChild("displayed", "urn:xmpp:chat-markers:0");
    if (displayed != null) {
        final String id = displayed.getAttribute("id");
        final Jid sender = InvalidJid.getNullForInvalid(displayed.getAttributeAsJid("sender"));
        if (packet.fromAccount(account) && !selfAddressed) {
            dismissNotification(account, counterpart, query, id);
            if (query == null) {
                activateGracePeriod(account);
            }
        } else if (isTypeGroupChat) {
            final Conversation conversation = mXmppConnectionService.find(account, counterpart.asBareJid());
            final Message message;
            if (conversation != null && id != null) {
                if (sender != null) {
                    message = conversation.findMessageWithRemoteId(id, sender);
                } else {
                    message = conversation.findMessageWithServerMsgId(id);
                }
            } else {
                message = null;
            }
            if (message != null) {
                final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
                final Jid trueJid = getTrueCounterpart((query != null && query.safeToExtractTrueCounterpart()) ? mucUserElement : null, fallback);
                final boolean trueJidMatchesAccount = account.getJid().asBareJid().equals(trueJid == null ? null : trueJid.asBareJid());
                if (trueJidMatchesAccount || conversation.getMucOptions().isSelf(counterpart)) {
                    if (!message.isRead() && (query == null || query.isCatchup())) {
                        // checking if message is unread fixes race conditions with reflections
                        mXmppConnectionService.markRead(conversation);
                    }
                } else if (!counterpart.isBareJid() && trueJid != null) {
                    final ReadByMarker readByMarker = ReadByMarker.from(counterpart, trueJid);
                    if (message.addReadByMarker(readByMarker)) {
                        mXmppConnectionService.updateMessage(message, false);
                    }
                }
            }
        } else {
            final Message displayedMessage = mXmppConnectionService.markMessage(account, from.asBareJid(), id, Message.STATUS_SEND_DISPLAYED);
            Message message = displayedMessage == null ? null : displayedMessage.prev();
            while (message != null && message.getStatus() == Message.STATUS_SEND_RECEIVED && message.getTimeSent() < displayedMessage.getTimeSent()) {
                mXmppConnectionService.markMessage(message, Message.STATUS_SEND_DISPLAYED);
                message = message.prev();
            }
            if (displayedMessage != null && selfAddressed) {
                dismissNotification(account, counterpart, query, id);
            }
        }
    }
    final Element event = original.findChild("event", "http://jabber.org/protocol/pubsub#event");
    if (event != null && InvalidJid.hasValidFrom(original)) {
        if (event.hasChild("items")) {
            parseEvent(event, original.getFrom(), account);
        } else if (event.hasChild("delete")) {
            parseDeleteEvent(event, original.getFrom(), account);
        } else if (event.hasChild("purge")) {
            parsePurgeEvent(event, original.getFrom(), account);
        }
    }
    final String nick = packet.findChildContent("nick", Namespace.NICK);
    if (nick != null && InvalidJid.hasValidFrom(original)) {
        final Contact contact = account.getRoster().getContact(from);
        if (contact.setPresenceName(nick)) {
            mXmppConnectionService.syncRoster(account);
            mXmppConnectionService.getAvatarService().clear(contact);
        }
    }
}