diff options
Diffstat (limited to 'conversations/src/main/java/eu/siacs/conversations/parser/MessageParser.java')
| -rw-r--r-- | conversations/src/main/java/eu/siacs/conversations/parser/MessageParser.java | 517 |
1 files changed, 517 insertions, 0 deletions
diff --git a/conversations/src/main/java/eu/siacs/conversations/parser/MessageParser.java b/conversations/src/main/java/eu/siacs/conversations/parser/MessageParser.java new file mode 100644 index 00000000..b5e14305 --- /dev/null +++ b/conversations/src/main/java/eu/siacs/conversations/parser/MessageParser.java @@ -0,0 +1,517 @@ +package eu.siacs.conversations.parser; + +import net.java.otr4j.session.Session; +import net.java.otr4j.session.SessionStatus; +import eu.siacs.conversations.entities.Account; +import eu.siacs.conversations.entities.Contact; +import eu.siacs.conversations.entities.Conversation; +import eu.siacs.conversations.entities.Message; +import eu.siacs.conversations.services.NotificationService; +import eu.siacs.conversations.services.XmppConnectionService; +import eu.siacs.conversations.utils.CryptoHelper; +import eu.siacs.conversations.xml.Element; +import eu.siacs.conversations.xmpp.OnMessagePacketReceived; +import eu.siacs.conversations.xmpp.pep.Avatar; +import eu.siacs.conversations.xmpp.stanzas.MessagePacket; + +public class MessageParser extends AbstractParser implements + OnMessagePacketReceived { + public MessageParser(XmppConnectionService service) { + super(service); + } + + private Message parseChat(MessagePacket packet, Account account) { + String[] fromParts = packet.getFrom().split("/", 2); + Conversation conversation = mXmppConnectionService + .findOrCreateConversation(account, fromParts[0], false); + updateLastseen(packet, account, true); + String pgpBody = getPgpBody(packet); + Message finishedMessage; + if (pgpBody != null) { + finishedMessage = new Message(conversation, packet.getFrom(), + pgpBody, Message.ENCRYPTION_PGP, Message.STATUS_RECEIVED); + } else { + finishedMessage = new Message(conversation, packet.getFrom(), + packet.getBody(), Message.ENCRYPTION_NONE, + Message.STATUS_RECEIVED); + } + finishedMessage.setRemoteMsgId(packet.getId()); + finishedMessage.markable = isMarkable(packet); + if (conversation.getMode() == Conversation.MODE_MULTI + && fromParts.length >= 2) { + finishedMessage.setType(Message.TYPE_PRIVATE); + finishedMessage.setPresence(fromParts[1]); + finishedMessage.setTrueCounterpart(conversation.getMucOptions() + .getTrueCounterpart(fromParts[1])); + if (conversation.hasDuplicateMessage(finishedMessage)) { + return null; + } + + } + finishedMessage.setTime(getTimestamp(packet)); + return finishedMessage; + } + + private Message parseOtrChat(MessagePacket packet, Account account) { + boolean properlyAddressed = (packet.getTo().split("/", 2).length == 2) + || (account.countPresences() == 1); + String[] fromParts = packet.getFrom().split("/", 2); + Conversation conversation = mXmppConnectionService + .findOrCreateConversation(account, fromParts[0], false); + String presence; + if (fromParts.length >= 2) { + presence = fromParts[1]; + } else { + presence = ""; + } + updateLastseen(packet, account, true); + String body = packet.getBody(); + if (body.matches("^\\?OTRv\\d*\\?")) { + conversation.endOtrIfNeeded(); + } + if (!conversation.hasValidOtrSession()) { + if (properlyAddressed) { + conversation.startOtrSession(mXmppConnectionService, presence, + false); + } else { + return null; + } + } else { + String foreignPresence = conversation.getOtrSession() + .getSessionID().getUserID(); + if (!foreignPresence.equals(presence)) { + conversation.endOtrIfNeeded(); + if (properlyAddressed) { + conversation.startOtrSession(mXmppConnectionService, + presence, false); + } else { + return null; + } + } + } + try { + Session otrSession = conversation.getOtrSession(); + SessionStatus before = otrSession.getSessionStatus(); + body = otrSession.transformReceiving(body); + SessionStatus after = otrSession.getSessionStatus(); + if ((before != after) && (after == SessionStatus.ENCRYPTED)) { + mXmppConnectionService.onOtrSessionEstablished(conversation); + } else if ((before != after) && (after == SessionStatus.FINISHED)) { + conversation.resetOtrSession(); + mXmppConnectionService.updateConversationUi(); + } + if ((body == null) || (body.isEmpty())) { + return null; + } + if (body.startsWith(CryptoHelper.FILETRANSFER)) { + String key = body.substring(CryptoHelper.FILETRANSFER.length()); + conversation.setSymmetricKey(CryptoHelper.hexToBytes(key)); + return null; + } + Message finishedMessage = new Message(conversation, + packet.getFrom(), body, Message.ENCRYPTION_OTR, + Message.STATUS_RECEIVED); + finishedMessage.setTime(getTimestamp(packet)); + finishedMessage.setRemoteMsgId(packet.getId()); + finishedMessage.markable = isMarkable(packet); + return finishedMessage; + } catch (Exception e) { + String receivedId = packet.getId(); + if (receivedId != null) { + mXmppConnectionService.replyWithNotAcceptable(account, packet); + } + conversation.resetOtrSession(); + return null; + } + } + + private Message parseGroupchat(MessagePacket packet, Account account) { + int status; + String[] fromParts = packet.getFrom().split("/", 2); + if (mXmppConnectionService.find(account.pendingConferenceLeaves, + account, fromParts[0]) != null) { + return null; + } + Conversation conversation = mXmppConnectionService + .findOrCreateConversation(account, fromParts[0], true); + if (packet.hasChild("subject")) { + conversation.getMucOptions().setSubject( + packet.findChild("subject").getContent()); + mXmppConnectionService.updateConversationUi(); + return null; + } + if ((fromParts.length == 1)) { + return null; + } + String counterPart = fromParts[1]; + if (counterPart.equals(conversation.getMucOptions().getActualNick())) { + if (mXmppConnectionService.markMessage(conversation, + packet.getId(), Message.STATUS_SEND)) { + return null; + } else { + status = Message.STATUS_SEND; + } + } else { + status = Message.STATUS_RECEIVED; + } + String pgpBody = getPgpBody(packet); + Message finishedMessage; + if (pgpBody == null) { + finishedMessage = new Message(conversation, counterPart, + packet.getBody(), Message.ENCRYPTION_NONE, status); + } else { + finishedMessage = new Message(conversation, counterPart, pgpBody, + Message.ENCRYPTION_PGP, status); + } + finishedMessage.setRemoteMsgId(packet.getId()); + finishedMessage.markable = isMarkable(packet); + if (status == Message.STATUS_RECEIVED) { + finishedMessage.setTrueCounterpart(conversation.getMucOptions() + .getTrueCounterpart(counterPart)); + } + if (packet.hasChild("delay") + && conversation.hasDuplicateMessage(finishedMessage)) { + return null; + } + finishedMessage.setTime(getTimestamp(packet)); + return finishedMessage; + } + + private Message parseCarbonMessage(MessagePacket packet, Account account) { + int status; + String fullJid; + Element forwarded; + if (packet.hasChild("received", "urn:xmpp:carbons:2")) { + forwarded = packet.findChild("received", "urn:xmpp:carbons:2") + .findChild("forwarded", "urn:xmpp:forward:0"); + status = Message.STATUS_RECEIVED; + } else if (packet.hasChild("sent", "urn:xmpp:carbons:2")) { + forwarded = packet.findChild("sent", "urn:xmpp:carbons:2") + .findChild("forwarded", "urn:xmpp:forward:0"); + status = Message.STATUS_SEND; + } else { + return null; + } + if (forwarded == null) { + return null; + } + Element message = forwarded.findChild("message"); + if (message == null) { + return null; + } + if (!message.hasChild("body")) { + if (status == Message.STATUS_RECEIVED + && message.getAttribute("from") != null) { + parseNonMessage(message, account); + } else if (status == Message.STATUS_SEND + && message.hasChild("displayed", "urn:xmpp:chat-markers:0")) { + String to = message.getAttribute("to"); + if (to != null) { + Conversation conversation = mXmppConnectionService.find( + mXmppConnectionService.getConversations(), account, + to.split("/")[0]); + if (conversation != null) { + mXmppConnectionService.markRead(conversation, false); + } + } + } + return null; + } + if (status == Message.STATUS_RECEIVED) { + fullJid = message.getAttribute("from"); + if (fullJid == null) { + return null; + } else { + updateLastseen(message, account, true); + } + } else { + fullJid = message.getAttribute("to"); + if (fullJid == null) { + return null; + } + } + String[] parts = fullJid.split("/", 2); + Conversation conversation = mXmppConnectionService + .findOrCreateConversation(account, parts[0], false); + String pgpBody = getPgpBody(message); + Message finishedMessage; + if (pgpBody != null) { + finishedMessage = new Message(conversation, fullJid, pgpBody, + Message.ENCRYPTION_PGP, status); + } else { + String body = message.findChild("body").getContent(); + finishedMessage = new Message(conversation, fullJid, body, + Message.ENCRYPTION_NONE, status); + } + finishedMessage.setTime(getTimestamp(message)); + finishedMessage.setRemoteMsgId(message.getAttribute("id")); + finishedMessage.markable = isMarkable(message); + if (conversation.getMode() == Conversation.MODE_MULTI + && parts.length >= 2) { + finishedMessage.setType(Message.TYPE_PRIVATE); + finishedMessage.setPresence(parts[1]); + finishedMessage.setTrueCounterpart(conversation.getMucOptions() + .getTrueCounterpart(parts[1])); + if (conversation.hasDuplicateMessage(finishedMessage)) { + return null; + } + } + + return finishedMessage; + } + + private void parseError(MessagePacket packet, Account account) { + String[] fromParts = packet.getFrom().split("/", 2); + mXmppConnectionService.markMessage(account, fromParts[0], + packet.getId(), Message.STATUS_SEND_FAILED); + } + + private void parseNonMessage(Element packet, Account account) { + String from = packet.getAttribute("from"); + if (packet.hasChild("event", "http://jabber.org/protocol/pubsub#event")) { + Element event = packet.findChild("event", + "http://jabber.org/protocol/pubsub#event"); + parseEvent(event, packet.getAttribute("from"), account); + } else if (from != null + && packet.hasChild("displayed", "urn:xmpp:chat-markers:0")) { + String id = packet + .findChild("displayed", "urn:xmpp:chat-markers:0") + .getAttribute("id"); + updateLastseen(packet, account, true); + mXmppConnectionService.markMessage(account, from.split("/", 2)[0], + id, Message.STATUS_SEND_DISPLAYED); + } else if (from != null + && packet.hasChild("received", "urn:xmpp:chat-markers:0")) { + String id = packet.findChild("received", "urn:xmpp:chat-markers:0") + .getAttribute("id"); + updateLastseen(packet, account, false); + mXmppConnectionService.markMessage(account, from.split("/", 2)[0], + id, Message.STATUS_SEND_RECEIVED); + } else if (from != null + && packet.hasChild("received", "urn:xmpp:receipts")) { + String id = packet.findChild("received", "urn:xmpp:receipts") + .getAttribute("id"); + updateLastseen(packet, account, false); + mXmppConnectionService.markMessage(account, from.split("/", 2)[0], + id, Message.STATUS_SEND_RECEIVED); + } else if (packet.hasChild("x", "http://jabber.org/protocol/muc#user")) { + Element x = packet.findChild("x", + "http://jabber.org/protocol/muc#user"); + if (x.hasChild("invite")) { + Conversation conversation = mXmppConnectionService + .findOrCreateConversation(account, + packet.getAttribute("from"), true); + if (!conversation.getMucOptions().online()) { + if (x.hasChild("password")) { + Element password = x.findChild("password"); + conversation.getMucOptions().setPassword( + password.getContent()); + mXmppConnectionService.databaseBackend + .updateConversation(conversation); + } + mXmppConnectionService.joinMuc(conversation); + mXmppConnectionService.updateConversationUi(); + } + } + } else if (packet.hasChild("x", "jabber:x:conference")) { + Element x = packet.findChild("x", "jabber:x:conference"); + String jid = x.getAttribute("jid"); + String password = x.getAttribute("password"); + if (jid != null) { + Conversation conversation = mXmppConnectionService + .findOrCreateConversation(account, jid, true); + if (!conversation.getMucOptions().online()) { + if (password != null) { + conversation.getMucOptions().setPassword(password); + mXmppConnectionService.databaseBackend + .updateConversation(conversation); + } + mXmppConnectionService.joinMuc(conversation); + mXmppConnectionService.updateConversationUi(); + } + } + } + } + + private void parseEvent(Element event, String from, Account account) { + Element items = event.findChild("items"); + String node = items.getAttribute("node"); + if (node != null) { + if (node.equals("urn:xmpp:avatar:metadata")) { + Avatar avatar = Avatar.parseMetadata(items); + if (avatar != null) { + avatar.owner = from; + if (mXmppConnectionService.getFileBackend().isAvatarCached( + avatar)) { + if (account.getJid().equals(from)) { + if (account.setAvatar(avatar.getFilename())) { + mXmppConnectionService.databaseBackend + .updateAccount(account); + } + mXmppConnectionService.getAvatarService().clear( + account); + mXmppConnectionService.updateConversationUi(); + mXmppConnectionService.updateAccountUi(); + } else { + Contact contact = account.getRoster().getContact( + from); + contact.setAvatar(avatar.getFilename()); + mXmppConnectionService.getAvatarService().clear( + contact); + mXmppConnectionService.updateConversationUi(); + mXmppConnectionService.updateRosterUi(); + } + } else { + mXmppConnectionService.fetchAvatar(account, avatar); + } + } + } else if (node.equals("http://jabber.org/protocol/nick")) { + Element item = items.findChild("item"); + if (item != null) { + Element nick = item.findChild("nick", + "http://jabber.org/protocol/nick"); + if (nick != null) { + if (from != null) { + Contact contact = account.getRoster().getContact( + from); + contact.setPresenceName(nick.getContent()); + } + } + } + } + } + } + + private String getPgpBody(Element message) { + Element child = message.findChild("x", "jabber:x:encrypted"); + if (child == null) { + return null; + } else { + return child.getContent(); + } + } + + private boolean isMarkable(Element message) { + return message.hasChild("markable", "urn:xmpp:chat-markers:0"); + } + + @Override + public void onMessagePacketReceived(Account account, MessagePacket packet) { + Message message = null; + boolean notify = mXmppConnectionService.getPreferences().getBoolean( + "show_notification", true); + boolean alwaysNotifyInConference = notify + && mXmppConnectionService.getPreferences().getBoolean( + "always_notify_in_conference", false); + + this.parseNick(packet, account); + + if ((packet.getType() == MessagePacket.TYPE_CHAT || packet.getType() == MessagePacket.TYPE_NORMAL)) { + if ((packet.getBody() != null) + && (packet.getBody().startsWith("?OTR"))) { + message = this.parseOtrChat(packet, account); + if (message != null) { + message.markUnread(); + } + } else if (packet.hasChild("body") + && !(packet.hasChild("x", + "http://jabber.org/protocol/muc#user"))) { + message = this.parseChat(packet, account); + if (message != null) { + message.markUnread(); + } + } else if (packet.hasChild("received", "urn:xmpp:carbons:2") + || (packet.hasChild("sent", "urn:xmpp:carbons:2"))) { + message = this.parseCarbonMessage(packet, account); + if (message != null) { + if (message.getStatus() == Message.STATUS_SEND) { + account.activateGracePeriod(); + notify = false; + mXmppConnectionService.markRead( + message.getConversation(), false); + } else { + message.markUnread(); + } + } + } else { + parseNonMessage(packet, account); + } + } else if (packet.getType() == MessagePacket.TYPE_GROUPCHAT) { + message = this.parseGroupchat(packet, account); + if (message != null) { + if (message.getStatus() == Message.STATUS_RECEIVED) { + message.markUnread(); + notify = alwaysNotifyInConference + || NotificationService + .wasHighlightedOrPrivate(message); + } else { + mXmppConnectionService.markRead(message.getConversation(), + false); + account.activateGracePeriod(); + notify = false; + } + } + } else if (packet.getType() == MessagePacket.TYPE_ERROR) { + this.parseError(packet, account); + return; + } else if (packet.getType() == MessagePacket.TYPE_HEADLINE) { + this.parseHeadline(packet, account); + return; + } + if ((message == null) || (message.getBody() == null)) { + return; + } + if ((mXmppConnectionService.confirmMessages()) + && ((packet.getId() != null))) { + if (packet.hasChild("markable", "urn:xmpp:chat-markers:0")) { + MessagePacket receipt = mXmppConnectionService + .getMessageGenerator().received(account, packet, + "urn:xmpp:chat-markers:0"); + mXmppConnectionService.sendMessagePacket(account, receipt); + } + if (packet.hasChild("request", "urn:xmpp:receipts")) { + MessagePacket receipt = mXmppConnectionService + .getMessageGenerator().received(account, packet, + "urn:xmpp:receipts"); + mXmppConnectionService.sendMessagePacket(account, receipt); + } + } + Conversation conversation = message.getConversation(); + conversation.add(message); + if (packet.getType() != MessagePacket.TYPE_ERROR) { + if (message.getEncryption() == Message.ENCRYPTION_NONE + || mXmppConnectionService.saveEncryptedMessages()) { + mXmppConnectionService.databaseBackend.createMessage(message); + } + } + if (message.bodyContainsDownloadable()) { + this.mXmppConnectionService.getHttpConnectionManager() + .createNewConnection(message); + } + notify = notify && !conversation.isMuted(); + if (notify) { + mXmppConnectionService.getNotificationService().push(message); + } + mXmppConnectionService.updateConversationUi(); + } + + private void parseHeadline(MessagePacket packet, Account account) { + if (packet.hasChild("event", "http://jabber.org/protocol/pubsub#event")) { + Element event = packet.findChild("event", + "http://jabber.org/protocol/pubsub#event"); + parseEvent(event, packet.getFrom(), account); + } + } + + private void parseNick(MessagePacket packet, Account account) { + Element nick = packet.findChild("nick", + "http://jabber.org/protocol/nick"); + if (nick != null) { + if (packet.getFrom() != null) { + Contact contact = account.getRoster().getContact( + packet.getFrom()); + contact.setPresenceName(nick.getContent()); + } + } + } +} |