587 lines
23 KiB
Java
587 lines
23 KiB
Java
package eu.siacs.conversations.parser;
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import android.util.Log;
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import android.util.Pair;
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import net.java.otr4j.session.Session;
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import net.java.otr4j.session.SessionStatus;
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import java.util.ArrayList;
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import java.util.Set;
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import java.util.UUID;
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import eu.siacs.conversations.Config;
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import eu.siacs.conversations.crypto.OtrService;
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import eu.siacs.conversations.crypto.axolotl.AxolotlService;
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import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
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import eu.siacs.conversations.entities.Account;
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import eu.siacs.conversations.entities.Bookmark;
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import eu.siacs.conversations.entities.Contact;
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import eu.siacs.conversations.entities.Conversation;
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import eu.siacs.conversations.entities.Message;
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import eu.siacs.conversations.entities.MucOptions;
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import eu.siacs.conversations.http.HttpConnectionManager;
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import eu.siacs.conversations.services.MessageArchiveService;
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import eu.siacs.conversations.services.XmppConnectionService;
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import eu.siacs.conversations.utils.CryptoHelper;
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import eu.siacs.conversations.xml.Element;
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import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
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import eu.siacs.conversations.xmpp.chatstate.ChatState;
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import eu.siacs.conversations.xmpp.jid.Jid;
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import eu.siacs.conversations.xmpp.pep.Avatar;
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import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
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public class MessageParser extends AbstractParser implements
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OnMessagePacketReceived {
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public MessageParser(XmppConnectionService service) {
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super(service);
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}
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private boolean extractChatState(Conversation conversation, final MessagePacket packet) {
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ChatState state = ChatState.parse(packet);
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if (state != null && conversation != null) {
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final Account account = conversation.getAccount();
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Jid from = packet.getFrom();
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if (from.toBareJid().equals(account.getJid().toBareJid())) {
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conversation.setOutgoingChatState(state);
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if (state == ChatState.ACTIVE || state == ChatState.COMPOSING) {
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mXmppConnectionService.markRead(conversation);
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account.activateGracePeriod();
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}
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return false;
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} else {
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return conversation.setIncomingChatState(state);
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}
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}
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return false;
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}
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private Message parseOtrChat(String body, Jid from, String id, Conversation conversation) {
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String presence;
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if (from.isBareJid()) {
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presence = "";
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} else {
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presence = from.getResourcepart();
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}
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if (body.matches("^\\?OTRv\\d{1,2}\\?.*")) {
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conversation.endOtrIfNeeded();
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}
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if (!conversation.hasValidOtrSession()) {
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conversation.startOtrSession(presence,false);
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} else {
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String foreignPresence = conversation.getOtrSession().getSessionID().getUserID();
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if (!foreignPresence.equals(presence)) {
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conversation.endOtrIfNeeded();
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conversation.startOtrSession(presence, false);
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}
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}
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try {
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conversation.setLastReceivedOtrMessageId(id);
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Session otrSession = conversation.getOtrSession();
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body = otrSession.transformReceiving(body);
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SessionStatus status = otrSession.getSessionStatus();
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if (body == null && status == SessionStatus.ENCRYPTED) {
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mXmppConnectionService.onOtrSessionEstablished(conversation);
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return null;
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} else if (body == null && status == SessionStatus.FINISHED) {
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conversation.resetOtrSession();
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mXmppConnectionService.updateConversationUi();
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return null;
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} else if (body == null || (body.isEmpty())) {
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return null;
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}
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if (body.startsWith(CryptoHelper.FILETRANSFER)) {
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String key = body.substring(CryptoHelper.FILETRANSFER.length());
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conversation.setSymmetricKey(CryptoHelper.hexToBytes(key));
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return null;
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}
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final OtrService otrService = conversation.getAccount().getOtrService();
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Message finishedMessage = new Message(conversation, body, Message.ENCRYPTION_OTR, Message.STATUS_RECEIVED);
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finishedMessage.setFingerprint(otrService.getFingerprint(otrSession.getRemotePublicKey()));
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conversation.setLastReceivedOtrMessageId(null);
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return finishedMessage;
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} catch (Exception e) {
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conversation.resetOtrSession();
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return null;
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}
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}
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private Message parseAxolotlChat(Element axolotlMessage, Jid from, Conversation conversation, int status) {
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Message finishedMessage = null;
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AxolotlService service = conversation.getAccount().getAxolotlService();
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XmppAxolotlMessage xmppAxolotlMessage = XmppAxolotlMessage.fromElement(axolotlMessage, from.toBareJid());
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XmppAxolotlMessage.XmppAxolotlPlaintextMessage plaintextMessage = service.processReceivingPayloadMessage(xmppAxolotlMessage);
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if(plaintextMessage != null) {
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finishedMessage = new Message(conversation, plaintextMessage.getPlaintext(), Message.ENCRYPTION_AXOLOTL, status);
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finishedMessage.setFingerprint(plaintextMessage.getFingerprint());
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Log.d(Config.LOGTAG, AxolotlService.getLogprefix(finishedMessage.getConversation().getAccount())+" Received Message with session fingerprint: "+plaintextMessage.getFingerprint());
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}
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return finishedMessage;
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}
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private class Invite {
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Jid jid;
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String password;
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Invite(Jid jid, String password) {
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this.jid = jid;
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this.password = password;
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}
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public boolean execute(Account account) {
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if (jid != null) {
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Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, jid, true);
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if (!conversation.getMucOptions().online()) {
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conversation.getMucOptions().setPassword(password);
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mXmppConnectionService.databaseBackend.updateConversation(conversation);
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mXmppConnectionService.joinMuc(conversation);
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mXmppConnectionService.updateConversationUi();
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}
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return true;
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}
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return false;
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}
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}
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private Invite extractInvite(Element message) {
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Element x = message.findChild("x", "http://jabber.org/protocol/muc#user");
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if (x != null) {
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Element invite = x.findChild("invite");
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if (invite != null) {
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Element pw = x.findChild("password");
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return new Invite(message.getAttributeAsJid("from"), pw != null ? pw.getContent(): null);
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}
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} else {
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x = message.findChild("x","jabber:x:conference");
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if (x != null) {
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return new Invite(x.getAttributeAsJid("jid"),x.getAttribute("password"));
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}
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}
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return null;
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}
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private static String extractStanzaId(Element packet, Jid by) {
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for(Element child : packet.getChildren()) {
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if (child.getName().equals("stanza-id")
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&& "urn:xmpp:sid:0".equals(child.getNamespace())
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&& by.equals(child.getAttributeAsJid("by"))) {
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return child.getAttribute("id");
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}
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}
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return null;
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}
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private void parseEvent(final Element event, final Jid from, final Account account) {
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Element items = event.findChild("items");
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String node = items == null ? null : items.getAttribute("node");
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if ("urn:xmpp:avatar:metadata".equals(node)) {
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Avatar avatar = Avatar.parseMetadata(items);
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if (avatar != null) {
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avatar.owner = from.toBareJid();
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if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
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if (account.getJid().toBareJid().equals(from)) {
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if (account.setAvatar(avatar.getFilename())) {
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mXmppConnectionService.databaseBackend.updateAccount(account);
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}
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mXmppConnectionService.getAvatarService().clear(account);
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mXmppConnectionService.updateConversationUi();
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mXmppConnectionService.updateAccountUi();
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} else {
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Contact contact = account.getRoster().getContact(from);
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contact.setAvatar(avatar);
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mXmppConnectionService.getAvatarService().clear(contact);
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mXmppConnectionService.updateConversationUi();
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mXmppConnectionService.updateRosterUi();
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}
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} else {
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mXmppConnectionService.fetchAvatar(account, avatar);
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}
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}
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} else if ("http://jabber.org/protocol/nick".equals(node)) {
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Element i = items.findChild("item");
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Element nick = i == null ? null : i.findChild("nick", "http://jabber.org/protocol/nick");
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if (nick != null && nick.getContent() != null) {
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Contact contact = account.getRoster().getContact(from);
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contact.setPresenceName(nick.getContent());
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mXmppConnectionService.getAvatarService().clear(account);
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mXmppConnectionService.updateConversationUi();
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mXmppConnectionService.updateAccountUi();
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}
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} else if (AxolotlService.PEP_DEVICE_LIST.equals(node)) {
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Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account)+"Received PEP device list update from "+ from + ", processing...");
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Element item = items.findChild("item");
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Set<Integer> deviceIds = mXmppConnectionService.getIqParser().deviceIds(item);
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AxolotlService axolotlService = account.getAxolotlService();
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axolotlService.registerDevices(from, deviceIds);
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mXmppConnectionService.updateAccountUi();
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}
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}
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private boolean handleErrorMessage(Account account, MessagePacket packet) {
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if (packet.getType() == MessagePacket.TYPE_ERROR) {
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Jid from = packet.getFrom();
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if (from != null) {
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Element error = packet.findChild("error");
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String text = error == null ? null : error.findChildContent("text");
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if (text != null) {
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Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": sending message to "+ from+ " failed - " + text);
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} else if (error != null) {
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Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": sending message to "+ from+ " failed - " + error);
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}
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Message message = mXmppConnectionService.markMessage(account,
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from.toBareJid(),
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packet.getId(),
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Message.STATUS_SEND_FAILED);
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if (message != null && message.getEncryption() == Message.ENCRYPTION_OTR) {
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message.getConversation().endOtrIfNeeded();
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}
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}
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return true;
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}
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return false;
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}
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@Override
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public void onMessagePacketReceived(Account account, MessagePacket original) {
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if (handleErrorMessage(account, original)) {
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return;
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}
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final MessagePacket packet;
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Long timestamp = null;
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final boolean isForwarded;
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boolean isCarbon = false;
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String serverMsgId = null;
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final Element fin = original.findChild("fin", "urn:xmpp:mam:0");
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if (fin != null) {
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mXmppConnectionService.getMessageArchiveService().processFin(fin,original.getFrom());
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return;
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}
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final Element result = original.findChild("result","urn:xmpp:mam:0");
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final MessageArchiveService.Query query = result == null ? null : mXmppConnectionService.getMessageArchiveService().findQuery(result.getAttribute("queryid"));
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if (query != null && query.validFrom(original.getFrom())) {
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Pair<MessagePacket, Long> f = original.getForwardedMessagePacket("result", "urn:xmpp:mam:0");
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if (f == null) {
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return;
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}
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timestamp = f.second;
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packet = f.first;
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isForwarded = true;
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serverMsgId = result.getAttribute("id");
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query.incrementMessageCount();
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} else if (query != null) {
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Log.d(Config.LOGTAG,account.getJid().toBareJid()+": received mam result from invalid sender");
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return;
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} else if (original.fromServer(account)) {
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Pair<MessagePacket, Long> f;
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f = original.getForwardedMessagePacket("received", "urn:xmpp:carbons:2");
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f = f == null ? original.getForwardedMessagePacket("sent", "urn:xmpp:carbons:2") : f;
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packet = f != null ? f.first : original;
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if (handleErrorMessage(account, packet)) {
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return;
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}
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timestamp = f != null ? f.second : null;
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isCarbon = f != null;
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isForwarded = isCarbon;
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} else {
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packet = original;
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isForwarded = false;
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}
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if (timestamp == null) {
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timestamp = AbstractParser.getTimestamp(packet, System.currentTimeMillis());
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}
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final String body = packet.getBody();
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final Element mucUserElement = packet.findChild("x", "http://jabber.org/protocol/muc#user");
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final String pgpEncrypted = packet.findChildContent("x", "jabber:x:encrypted");
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final Element replaceElement = packet.findChild("replace", "urn:xmpp:message-correct:0");
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final Element oob = packet.findChild("x", "jabber:x:oob");
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final boolean isOob = oob!= null && body != null && body.equals(oob.findChildContent("url"));
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final String replacementId = replaceElement == null ? null : replaceElement.getAttribute("id");
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final Element axolotlEncrypted = packet.findChild(XmppAxolotlMessage.CONTAINERTAG, AxolotlService.PEP_PREFIX);
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int status;
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final Jid counterpart;
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final Jid to = packet.getTo();
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final Jid from = packet.getFrom();
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final String remoteMsgId = packet.getId();
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if (from == null) {
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Log.d(Config.LOGTAG,"no from in: "+packet.toString());
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return;
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}
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boolean isTypeGroupChat = packet.getType() == MessagePacket.TYPE_GROUPCHAT;
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boolean isProperlyAddressed = (to != null ) && (!to.isBareJid() || account.countPresences() <= 1);
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boolean isMucStatusMessage = from.isBareJid() && mucUserElement != null && mucUserElement.hasChild("status");
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if (packet.fromAccount(account)) {
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status = Message.STATUS_SEND;
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counterpart = to != null ? to : account.getJid();
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} else {
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status = Message.STATUS_RECEIVED;
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counterpart = from;
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}
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Invite invite = extractInvite(packet);
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if (invite != null && invite.execute(account)) {
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return;
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}
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if (extractChatState(mXmppConnectionService.find(account, counterpart.toBareJid()), packet)) {
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mXmppConnectionService.updateConversationUi();
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}
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if ((body != null || pgpEncrypted != null || axolotlEncrypted != null) && !isMucStatusMessage) {
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Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, counterpart.toBareJid(), isTypeGroupChat, query);
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if (isTypeGroupChat) {
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if (counterpart.getResourcepart().equals(conversation.getMucOptions().getActualNick())) {
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status = Message.STATUS_SEND_RECEIVED;
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isCarbon = true; //not really carbon but received from another resource
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if (mXmppConnectionService.markMessage(conversation, remoteMsgId, status)) {
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return;
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} else if (remoteMsgId == null || Config.IGNORE_ID_REWRITE_IN_MUC) {
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Message message = conversation.findSentMessageWithBody(packet.getBody());
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if (message != null) {
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mXmppConnectionService.markMessage(message, status);
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return;
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}
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}
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} else {
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status = Message.STATUS_RECEIVED;
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}
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}
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Message message;
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if (body != null && body.startsWith("?OTR") && Config.supportOtr()) {
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if (!isForwarded && !isTypeGroupChat && isProperlyAddressed) {
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message = parseOtrChat(body, from, remoteMsgId, conversation);
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if (message == null) {
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return;
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}
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} else {
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Log.d(Config.LOGTAG,account.getJid().toBareJid()+": ignoring OTR message from "+from+" isForwarded="+Boolean.toString(isForwarded)+", isProperlyAddressed="+Boolean.valueOf(isProperlyAddressed));
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message = new Message(conversation, body, Message.ENCRYPTION_NONE, status);
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}
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} else if (pgpEncrypted != null && Config.supportOpenPgp()) {
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message = new Message(conversation, pgpEncrypted, Message.ENCRYPTION_PGP, status);
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} else if (axolotlEncrypted != null && Config.supportOmemo()) {
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Jid origin;
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if (conversation.getMode() == Conversation.MODE_MULTI) {
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origin = conversation.getMucOptions().getTrueCounterpart(counterpart.getResourcepart());
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if (origin == null) {
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Log.d(Config.LOGTAG,"axolotl message in non anonymous conference received");
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return;
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}
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} else {
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origin = from;
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}
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message = parseAxolotlChat(axolotlEncrypted, origin, conversation, status);
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if (message == null) {
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return;
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}
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} else {
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message = new Message(conversation, body, Message.ENCRYPTION_NONE, status);
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}
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if (serverMsgId == null) {
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serverMsgId = extractStanzaId(packet, isTypeGroupChat ? conversation.getJid().toBareJid() : account.getServer());
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}
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message.setCounterpart(counterpart);
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message.setRemoteMsgId(remoteMsgId);
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message.setServerMsgId(serverMsgId);
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message.setCarbon(isCarbon);
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message.setTime(timestamp);
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message.setOob(isOob);
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message.markable = packet.hasChild("markable", "urn:xmpp:chat-markers:0");
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if (conversation.getMode() == Conversation.MODE_MULTI) {
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Jid trueCounterpart = conversation.getMucOptions().getTrueCounterpart(counterpart.getResourcepart());
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message.setTrueCounterpart(trueCounterpart);
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if (trueCounterpart != null) {
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updateLastseen(timestamp, account, trueCounterpart, false);
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}
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if (!isTypeGroupChat) {
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message.setType(Message.TYPE_PRIVATE);
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}
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} else {
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updateLastseen(timestamp, account, packet.getFrom(), true);
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}
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if (replacementId != null && mXmppConnectionService.allowMessageCorrection()) {
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Message replacedMessage = conversation.findMessageWithRemoteIdAndCounterpart(replacementId,
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counterpart,
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message.getStatus() == Message.STATUS_RECEIVED,
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message.isCarbon());
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if (replacedMessage != null) {
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final boolean fingerprintsMatch = replacedMessage.getFingerprint() == null
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|| replacedMessage.getFingerprint().equals(message.getFingerprint());
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final boolean trueCountersMatch = replacedMessage.getTrueCounterpart() != null
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&& replacedMessage.getTrueCounterpart().equals(message.getTrueCounterpart());
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if (fingerprintsMatch && (trueCountersMatch || conversation.getMode() == Conversation.MODE_SINGLE)) {
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Log.d(Config.LOGTAG, "replaced message '" + replacedMessage.getBody() + "' with '" + message.getBody() + "'");
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final String uuid = replacedMessage.getUuid();
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replacedMessage.setUuid(UUID.randomUUID().toString());
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replacedMessage.setBody(message.getBody());
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replacedMessage.setEdited(replacedMessage.getRemoteMsgId());
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replacedMessage.setRemoteMsgId(remoteMsgId);
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replacedMessage.setEncryption(message.getEncryption());
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if (replacedMessage.getStatus() == Message.STATUS_RECEIVED) {
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replacedMessage.markUnread();
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}
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mXmppConnectionService.updateMessage(replacedMessage, uuid);
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mXmppConnectionService.getNotificationService().updateNotification(false);
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if (mXmppConnectionService.confirmMessages() && remoteMsgId != null && !isForwarded && !isTypeGroupChat) {
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sendMessageReceipts(account, packet);
|
|
}
|
|
if (replacedMessage.getEncryption() == Message.ENCRYPTION_PGP) {
|
|
conversation.getAccount().getPgpDecryptionService().add(replacedMessage);
|
|
}
|
|
return;
|
|
} else {
|
|
Log.d(Config.LOGTAG,account.getJid().toBareJid()+": received message correction but verification didn't check out");
|
|
}
|
|
}
|
|
}
|
|
|
|
boolean checkForDuplicates = query != null
|
|
|| (isTypeGroupChat && packet.hasChild("delay","urn:xmpp:delay"))
|
|
|| message.getType() == Message.TYPE_PRIVATE;
|
|
if (checkForDuplicates && conversation.hasDuplicateMessage(message)) {
|
|
Log.d(Config.LOGTAG,"skipping duplicate message from "+message.getCounterpart().toString()+" "+message.getBody());
|
|
return;
|
|
}
|
|
|
|
if (query != null && query.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
|
|
conversation.prepend(message);
|
|
} else {
|
|
conversation.add(message);
|
|
}
|
|
|
|
if (message.getEncryption() == Message.ENCRYPTION_PGP) {
|
|
conversation.getAccount().getPgpDecryptionService().add(message);
|
|
}
|
|
|
|
if (query == null || query.getWith() == null) { //either no mam or catchup
|
|
if (status == Message.STATUS_SEND || status == Message.STATUS_SEND_RECEIVED) {
|
|
mXmppConnectionService.markRead(conversation);
|
|
if (query == null) {
|
|
account.activateGracePeriod();
|
|
}
|
|
} else {
|
|
message.markUnread();
|
|
}
|
|
}
|
|
|
|
if (query == null) {
|
|
mXmppConnectionService.updateConversationUi();
|
|
}
|
|
|
|
if (mXmppConnectionService.confirmMessages() && remoteMsgId != null && !isForwarded && !isTypeGroupChat) {
|
|
sendMessageReceipts(account, packet);
|
|
}
|
|
|
|
if (message.getStatus() == Message.STATUS_RECEIVED
|
|
&& conversation.getOtrSession() != null
|
|
&& !conversation.getOtrSession().getSessionID().getUserID()
|
|
.equals(message.getCounterpart().getResourcepart())) {
|
|
conversation.endOtrIfNeeded();
|
|
}
|
|
|
|
if (message.getEncryption() == Message.ENCRYPTION_NONE || mXmppConnectionService.saveEncryptedMessages()) {
|
|
mXmppConnectionService.databaseBackend.createMessage(message);
|
|
}
|
|
final HttpConnectionManager manager = this.mXmppConnectionService.getHttpConnectionManager();
|
|
if (message.trusted() && message.treatAsDownloadable() != Message.Decision.NEVER && manager.getAutoAcceptFileSize() > 0) {
|
|
manager.createNewDownloadConnection(message);
|
|
} else if (!message.isRead()) {
|
|
if (query == null) {
|
|
mXmppConnectionService.getNotificationService().push(message);
|
|
} else if (query.getWith() == null) { // mam catchup
|
|
mXmppConnectionService.getNotificationService().pushFromBacklog(message);
|
|
}
|
|
}
|
|
} else if (!packet.hasChild("body")){ //no body
|
|
if (isTypeGroupChat) {
|
|
Conversation conversation = mXmppConnectionService.find(account, from.toBareJid());
|
|
if (packet.hasChild("subject")) {
|
|
if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
|
|
conversation.setHasMessagesLeftOnServer(conversation.countMessages() > 0);
|
|
String subject = packet.findChildContent("subject");
|
|
conversation.getMucOptions().setSubject(subject);
|
|
final Bookmark bookmark = conversation.getBookmark();
|
|
if (bookmark != null && bookmark.getBookmarkName() == null) {
|
|
if (bookmark.setBookmarkName(subject)) {
|
|
mXmppConnectionService.pushBookmarks(account);
|
|
}
|
|
}
|
|
mXmppConnectionService.updateConversationUi();
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (conversation != null && isMucStatusMessage) {
|
|
for (Element child : mucUserElement.getChildren()) {
|
|
if (child.getName().equals("status")
|
|
&& MucOptions.STATUS_CODE_ROOM_CONFIG_CHANGED.equals(child.getAttribute("code"))) {
|
|
mXmppConnectionService.fetchConferenceConfiguration(conversation);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
Element received = packet.findChild("received", "urn:xmpp:chat-markers:0");
|
|
if (received == null) {
|
|
received = packet.findChild("received", "urn:xmpp:receipts");
|
|
}
|
|
if (received != null && !packet.fromAccount(account)) {
|
|
mXmppConnectionService.markMessage(account, from.toBareJid(), received.getAttribute("id"), Message.STATUS_SEND_RECEIVED);
|
|
}
|
|
Element displayed = packet.findChild("displayed", "urn:xmpp:chat-markers:0");
|
|
if (displayed != null) {
|
|
if (packet.fromAccount(account)) {
|
|
Conversation conversation = mXmppConnectionService.find(account,counterpart.toBareJid());
|
|
if (conversation != null) {
|
|
mXmppConnectionService.markRead(conversation);
|
|
}
|
|
} else {
|
|
updateLastseen(timestamp, account, packet.getFrom(), true);
|
|
final Message displayedMessage = mXmppConnectionService.markMessage(account, from.toBareJid(), displayed.getAttribute("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();
|
|
}
|
|
}
|
|
}
|
|
|
|
Element event = packet.findChild("event", "http://jabber.org/protocol/pubsub#event");
|
|
if (event != null) {
|
|
parseEvent(event, from, account);
|
|
}
|
|
|
|
String nick = packet.findChildContent("nick", "http://jabber.org/protocol/nick");
|
|
if (nick != null) {
|
|
Contact contact = account.getRoster().getContact(from);
|
|
contact.setPresenceName(nick);
|
|
}
|
|
}
|
|
|
|
private void sendMessageReceipts(Account account, MessagePacket packet) {
|
|
ArrayList<String> receiptsNamespaces = new ArrayList<>();
|
|
if (packet.hasChild("markable", "urn:xmpp:chat-markers:0")) {
|
|
receiptsNamespaces.add("urn:xmpp:chat-markers:0");
|
|
}
|
|
if (packet.hasChild("request", "urn:xmpp:receipts")) {
|
|
receiptsNamespaces.add("urn:xmpp:receipts");
|
|
}
|
|
if (receiptsNamespaces.size() > 0) {
|
|
MessagePacket receipt = mXmppConnectionService.getMessageGenerator().received(account,
|
|
packet,
|
|
receiptsNamespaces,
|
|
packet.getType());
|
|
mXmppConnectionService.sendMessagePacket(account, receipt);
|
|
}
|
|
}
|
|
}
|