421 lines
14 KiB
Java
421 lines
14 KiB
Java
package eu.siacs.conversations.parser;
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import android.os.SystemClock;
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import android.util.Log;
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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 eu.siacs.conversations.entities.Account;
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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.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.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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private long lastCarbonMessageReceived = -XmppConnectionService.CARBON_GRACE_PERIOD;
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public MessageParser(XmppConnectionService service) {
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super(service);
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}
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private Message parseChat(MessagePacket packet, Account account) {
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String[] fromParts = packet.getFrom().split("/");
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Conversation conversation = mXmppConnectionService
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.findOrCreateConversation(account, fromParts[0], false);
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conversation.setLatestMarkableMessageId(getMarkableMessageId(packet));
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updateLastseen(packet, account, true);
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String pgpBody = getPgpBody(packet);
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Message finishedMessage;
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if (pgpBody != null) {
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finishedMessage = new Message(conversation, packet.getFrom(),
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pgpBody, Message.ENCRYPTION_PGP, Message.STATUS_RECIEVED);
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} else {
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finishedMessage = new Message(conversation, packet.getFrom(),
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packet.getBody(), Message.ENCRYPTION_NONE,
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Message.STATUS_RECIEVED);
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}
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if (conversation.getMode() == Conversation.MODE_MULTI
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&& fromParts.length >= 2) {
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finishedMessage.setType(Message.TYPE_PRIVATE);
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finishedMessage.setPresence(fromParts[1]);
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finishedMessage.setTrueCounterpart(conversation.getMucOptions()
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.getTrueCounterpart(fromParts[1]));
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}
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finishedMessage.setTime(getTimestamp(packet));
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return finishedMessage;
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}
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private Message parseOtrChat(MessagePacket packet, Account account) {
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boolean properlyAddressed = (packet.getTo().split("/").length == 2)
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|| (account.countPresences() == 1);
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String[] fromParts = packet.getFrom().split("/");
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Conversation conversation = mXmppConnectionService
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.findOrCreateConversation(account, fromParts[0], false);
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updateLastseen(packet, account, true);
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String body = packet.getBody();
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if (!conversation.hasValidOtrSession()) {
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if (properlyAddressed) {
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conversation.startOtrSession(
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mXmppConnectionService.getApplicationContext(),
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fromParts[1], false);
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} else {
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return null;
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}
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} else {
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String foreignPresence = conversation.getOtrSession()
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.getSessionID().getUserID();
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if (!foreignPresence.equals(fromParts[1])) {
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conversation.endOtrIfNeeded();
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if (properlyAddressed) {
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conversation.startOtrSession(
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mXmppConnectionService.getApplicationContext(),
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fromParts[1], false);
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} else {
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return null;
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}
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}
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}
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try {
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Session otrSession = conversation.getOtrSession();
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SessionStatus before = otrSession.getSessionStatus();
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body = otrSession.transformReceiving(body);
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SessionStatus after = otrSession.getSessionStatus();
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if ((before != after) && (after == SessionStatus.ENCRYPTED)) {
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mXmppConnectionService.onOtrSessionEstablished(conversation);
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} else if ((before != after) && (after == SessionStatus.FINISHED)) {
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conversation.resetOtrSession();
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mXmppConnectionService.updateConversationUi();
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}
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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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conversation
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.setLatestMarkableMessageId(getMarkableMessageId(packet));
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Message finishedMessage = new Message(conversation,
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packet.getFrom(), body, Message.ENCRYPTION_OTR,
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Message.STATUS_RECIEVED);
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finishedMessage.setTime(getTimestamp(packet));
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return finishedMessage;
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} catch (Exception e) {
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String receivedId = packet.getId();
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if (receivedId != null) {
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mXmppConnectionService.replyWithNotAcceptable(account, packet);
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}
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conversation.endOtrIfNeeded();
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return null;
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}
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}
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private Message parseGroupchat(MessagePacket packet, Account account) {
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int status;
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String[] fromParts = packet.getFrom().split("/");
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if (mXmppConnectionService.find(account.pendingConferenceLeaves,
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account, fromParts[0]) != null) {
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return null;
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}
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Conversation conversation = mXmppConnectionService
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.findOrCreateConversation(account, fromParts[0], true);
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if (packet.hasChild("subject")) {
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conversation.getMucOptions().setSubject(
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packet.findChild("subject").getContent());
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mXmppConnectionService.updateConversationUi();
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return null;
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}
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if ((fromParts.length == 1)) {
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return null;
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}
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String counterPart = fromParts[1];
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if (counterPart.equals(conversation.getMucOptions().getActualNick())) {
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if (mXmppConnectionService.markMessage(conversation,
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packet.getId(), Message.STATUS_SEND)) {
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return null;
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} else {
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status = Message.STATUS_SEND;
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}
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} else {
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status = Message.STATUS_RECIEVED;
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}
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String pgpBody = getPgpBody(packet);
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conversation.setLatestMarkableMessageId(getMarkableMessageId(packet));
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Message finishedMessage;
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if (pgpBody == null) {
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finishedMessage = new Message(conversation, counterPart,
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packet.getBody(), Message.ENCRYPTION_NONE, status);
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} else {
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finishedMessage = new Message(conversation, counterPart, pgpBody,
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Message.ENCRYPTION_PGP, status);
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}
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finishedMessage.setTime(getTimestamp(packet));
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if (status == Message.STATUS_RECIEVED) {
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finishedMessage.setTrueCounterpart(conversation.getMucOptions()
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.getTrueCounterpart(counterPart));
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}
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return finishedMessage;
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}
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private Message parseCarbonMessage(MessagePacket packet, Account account) {
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int status;
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String fullJid;
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Element forwarded;
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if (packet.hasChild("received")) {
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forwarded = packet.findChild("received").findChild("forwarded");
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status = Message.STATUS_RECIEVED;
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} else if (packet.hasChild("sent")) {
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forwarded = packet.findChild("sent").findChild("forwarded");
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status = Message.STATUS_SEND;
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} else {
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return null;
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}
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if (forwarded == null) {
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return null;
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}
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Element message = forwarded.findChild("message");
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if ((message == null) || (!message.hasChild("body"))) {
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if (status == Message.STATUS_RECIEVED) {
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parseNormal(message, account);
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}
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return null;
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}
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if (status == Message.STATUS_RECIEVED) {
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fullJid = message.getAttribute("from");
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if (fullJid == null) {
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return null;
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} else {
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updateLastseen(message, account, true);
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}
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} else {
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fullJid = message.getAttribute("to");
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if (fullJid == null) {
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return null;
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}
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}
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String[] parts = fullJid.split("/");
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Conversation conversation = mXmppConnectionService
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.findOrCreateConversation(account, parts[0], false);
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conversation.setLatestMarkableMessageId(getMarkableMessageId(packet));
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String pgpBody = getPgpBody(message);
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Message finishedMessage;
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if (pgpBody != null) {
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finishedMessage = new Message(conversation, fullJid, pgpBody,
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Message.ENCRYPTION_PGP, status);
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} else {
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String body = message.findChild("body").getContent();
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finishedMessage = new Message(conversation, fullJid, body,
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Message.ENCRYPTION_NONE, status);
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}
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finishedMessage.setTime(getTimestamp(message));
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if (conversation.getMode() == Conversation.MODE_MULTI
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&& parts.length >= 2) {
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finishedMessage.setType(Message.TYPE_PRIVATE);
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finishedMessage.setPresence(parts[1]);
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finishedMessage.setTrueCounterpart(conversation.getMucOptions()
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.getTrueCounterpart(parts[1]));
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}
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return finishedMessage;
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}
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private void parseError(MessagePacket packet, Account account) {
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String[] fromParts = packet.getFrom().split("/");
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mXmppConnectionService.markMessage(account, fromParts[0],
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packet.getId(), Message.STATUS_SEND_FAILED);
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}
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private void parseNormal(Element packet, Account account) {
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if (packet.hasChild("event", "http://jabber.org/protocol/pubsub#event")) {
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Element event = packet.findChild("event",
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"http://jabber.org/protocol/pubsub#event");
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parseEvent(event, packet.getAttribute("from"), account);
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}
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if (packet.hasChild("displayed", "urn:xmpp:chat-markers:0")) {
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String id = packet
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.findChild("displayed", "urn:xmpp:chat-markers:0")
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.getAttribute("id");
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String[] fromParts = packet.getAttribute("from").split("/");
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updateLastseen(packet, account, true);
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mXmppConnectionService.markMessage(account, fromParts[0], id,
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Message.STATUS_SEND_DISPLAYED);
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} else if (packet.hasChild("received", "urn:xmpp:chat-markers:0")) {
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String id = packet.findChild("received", "urn:xmpp:chat-markers:0")
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.getAttribute("id");
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String[] fromParts = packet.getAttribute("from").split("/");
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updateLastseen(packet, account, false);
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mXmppConnectionService.markMessage(account, fromParts[0], id,
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Message.STATUS_SEND_RECEIVED);
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} else if (packet.hasChild("x", "http://jabber.org/protocol/muc#user")) {
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Element x = packet.findChild("x",
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"http://jabber.org/protocol/muc#user");
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if (x.hasChild("invite")) {
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Conversation conversation = mXmppConnectionService
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.findOrCreateConversation(account,
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packet.getAttribute("from"), true);
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if (!conversation.getMucOptions().online()) {
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mXmppConnectionService.joinMuc(conversation);
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mXmppConnectionService.updateConversationUi();
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}
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}
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} else if (packet.hasChild("x", "jabber:x:conference")) {
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Element x = packet.findChild("x", "jabber:x:conference");
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String jid = x.getAttribute("jid");
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if (jid != null) {
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Conversation conversation = mXmppConnectionService
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.findOrCreateConversation(account, jid, true);
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if (!conversation.getMucOptions().online()) {
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mXmppConnectionService.joinMuc(conversation);
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mXmppConnectionService.updateConversationUi();
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}
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}
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}
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}
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private void parseEvent(Element event, String from, Account account) {
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Element items = event.findChild("items");
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String node = items.getAttribute("node");
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if (node != null) {
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if (node.equals("urn:xmpp:avatar:metadata")) {
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Avatar avatar = Avatar.parseMetadata(items);
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avatar.owner = from;
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if (mXmppConnectionService.getFileBackend().isAvatarCached(
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avatar)) {
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if (account.getJid().equals(from)) {
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account.setAvatar(avatar.getFilename());
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} else {
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Contact contact = account.getRoster().getContact(from);
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contact.setAvatar(avatar.getFilename());
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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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} else {
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Log.d("xmppService", account.getJid() + ": " + node + " from "
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+ from);
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}
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} else {
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Log.d("xmppService", event.toString());
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}
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}
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private String getPgpBody(Element message) {
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Element child = message.findChild("x", "jabber:x:encrypted");
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if (child == null) {
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return null;
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} else {
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return child.getContent();
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}
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}
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private String getMarkableMessageId(Element message) {
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if (message.hasChild("markable", "urn:xmpp:chat-markers:0")) {
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return message.getAttribute("id");
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} else {
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return null;
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}
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}
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@Override
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public void onMessagePacketReceived(Account account, MessagePacket packet) {
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Message message = null;
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boolean notify = true;
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if (mXmppConnectionService.getPreferences().getBoolean(
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"notification_grace_period_after_carbon_received", true)) {
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notify = (SystemClock.elapsedRealtime() - lastCarbonMessageReceived) > XmppConnectionService.CARBON_GRACE_PERIOD;
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}
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if ((packet.getType() == MessagePacket.TYPE_CHAT)) {
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if ((packet.getBody() != null)
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&& (packet.getBody().startsWith("?OTR"))) {
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message = this.parseOtrChat(packet, account);
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if (message != null) {
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message.markUnread();
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}
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} else if (packet.hasChild("body")) {
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message = this.parseChat(packet, account);
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message.markUnread();
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} else if (packet.hasChild("received") || (packet.hasChild("sent"))) {
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message = this.parseCarbonMessage(packet, account);
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if (message != null) {
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if (message.getStatus() == Message.STATUS_SEND) {
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lastCarbonMessageReceived = SystemClock
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.elapsedRealtime();
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notify = false;
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message.getConversation().markRead();
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} else {
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message.markUnread();
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}
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}
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} else {
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parseNormal(packet, account);
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}
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} else if (packet.getType() == MessagePacket.TYPE_GROUPCHAT) {
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message = this.parseGroupchat(packet, account);
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if (message != null) {
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if (message.getStatus() == Message.STATUS_RECIEVED) {
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message.markUnread();
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} else {
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message.getConversation().markRead();
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lastCarbonMessageReceived = SystemClock.elapsedRealtime();
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notify = false;
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}
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}
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} else if (packet.getType() == MessagePacket.TYPE_ERROR) {
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this.parseError(packet, account);
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return;
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} else if (packet.getType() == MessagePacket.TYPE_NORMAL) {
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this.parseNormal(packet, account);
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return;
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} else if (packet.getType() == MessagePacket.TYPE_HEADLINE) {
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this.parseHeadline(packet, account);
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return;
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}
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if ((message == null) || (message.getBody() == null)) {
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return;
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}
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if ((mXmppConnectionService.confirmMessages())
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&& ((packet.getId() != null))) {
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if (packet.hasChild("markable", "urn:xmpp:chat-markers:0")) {
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MessagePacket receipt = mXmppConnectionService
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.getMessageGenerator().received(account, packet,
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"urn:xmpp:chat-markers:0");
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mXmppConnectionService.sendMessagePacket(account, receipt);
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}
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if (packet.hasChild("request", "urn:xmpp:receipts")) {
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MessagePacket receipt = mXmppConnectionService
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.getMessageGenerator().received(account, packet,
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"urn:xmpp:receipts");
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mXmppConnectionService.sendMessagePacket(account, receipt);
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}
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}
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Conversation conversation = message.getConversation();
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conversation.getMessages().add(message);
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if (packet.getType() != MessagePacket.TYPE_ERROR) {
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mXmppConnectionService.databaseBackend.createMessage(message);
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}
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mXmppConnectionService.notifyUi(conversation, notify);
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}
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private void parseHeadline(MessagePacket packet, Account account) {
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if (packet.hasChild("event", "http://jabber.org/protocol/pubsub#event")) {
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Element event = packet.findChild("event",
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"http://jabber.org/protocol/pubsub#event");
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parseEvent(event, packet.getFrom(), account);
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}
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}
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}
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