diff options
Diffstat (limited to 'src/main/java/de/thedevstack/conversationsplus/parser/MessageParser.java')
| -rw-r--r-- | src/main/java/de/thedevstack/conversationsplus/parser/MessageParser.java | 653 |
1 files changed, 653 insertions, 0 deletions
diff --git a/src/main/java/de/thedevstack/conversationsplus/parser/MessageParser.java b/src/main/java/de/thedevstack/conversationsplus/parser/MessageParser.java new file mode 100644 index 00000000..67ff94d2 --- /dev/null +++ b/src/main/java/de/thedevstack/conversationsplus/parser/MessageParser.java @@ -0,0 +1,653 @@ +package de.thedevstack.conversationsplus.parser; + +import net.java.otr4j.session.Session; +import net.java.otr4j.session.SessionStatus; + +import de.tzur.conversations.Settings; +import de.thedevstack.conversationsplus.entities.Account; +import de.thedevstack.conversationsplus.entities.Contact; +import de.thedevstack.conversationsplus.entities.Conversation; +import de.thedevstack.conversationsplus.entities.Message; +import de.thedevstack.conversationsplus.entities.MucOptions; +import de.thedevstack.conversationsplus.http.HttpConnectionManager; +import de.thedevstack.conversationsplus.services.MessageArchiveService; +import de.thedevstack.conversationsplus.services.XmppConnectionService; +import de.thedevstack.conversationsplus.utils.CryptoHelper; +import de.thedevstack.conversationsplus.xml.Element; +import de.thedevstack.conversationsplus.xmpp.OnMessagePacketReceived; +import de.thedevstack.conversationsplus.xmpp.chatstate.ChatState; +import de.thedevstack.conversationsplus.xmpp.jid.Jid; +import de.thedevstack.conversationsplus.xmpp.pep.Avatar; +import de.thedevstack.conversationsplus.xmpp.stanzas.MessagePacket; + +public class MessageParser extends AbstractParser implements + OnMessagePacketReceived { + public MessageParser(XmppConnectionService service) { + super(service); + } + + private boolean extractChatState(Conversation conversation, final Element element) { + ChatState state = ChatState.parse(element); + if (state != null && conversation != null) { + final Account account = conversation.getAccount(); + Jid from = element.getAttributeAsJid("from"); + if (from != null && from.toBareJid().equals(account.getJid().toBareJid())) { + conversation.setOutgoingChatState(state); + return false; + } else { + return conversation.setIncomingChatState(state); + } + } + return false; + } + + private Message parseChat(MessagePacket packet, Account account) { + final Jid jid = packet.getFrom(); + if (jid == null) { + return null; + } + Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, jid.toBareJid(), false); + String pgpBody = getPgpBody(packet); + Message finishedMessage; + if (pgpBody != null) { + finishedMessage = new Message(conversation, + pgpBody, Message.ENCRYPTION_PGP, Message.STATUS_RECEIVED); + } else { + finishedMessage = new Message(conversation, + packet.getBody(), Message.ENCRYPTION_NONE, + Message.STATUS_RECEIVED); + } + finishedMessage.setRemoteMsgId(packet.getId()); + finishedMessage.markable = isMarkable(packet); + if (conversation.getMode() == Conversation.MODE_MULTI + && !jid.isBareJid()) { + final Jid trueCounterpart = conversation.getMucOptions() + .getTrueCounterpart(jid.getResourcepart()); + if (trueCounterpart != null) { + updateLastseen(packet, account, trueCounterpart, false); + } + finishedMessage.setType(Message.TYPE_PRIVATE); + finishedMessage.setTrueCounterpart(trueCounterpart); + if (conversation.hasDuplicateMessage(finishedMessage)) { + return null; + } + } else { + updateLastseen(packet, account, true); + } + finishedMessage.setCounterpart(jid); + finishedMessage.setTime(getTimestamp(packet)); + extractChatState(conversation,packet); + return finishedMessage; + } + + private Message parseOtrChat(MessagePacket packet, Account account) { + final Jid to = packet.getTo(); + final Jid from = packet.getFrom(); + if (to == null || from == null) { + return null; + } + boolean properlyAddressed = !to.isBareJid() || account.countPresences() == 1; + Conversation conversation = mXmppConnectionService + .findOrCreateConversation(account, from.toBareJid(), false); + String presence; + if (from.isBareJid()) { + presence = ""; + } else { + presence = from.getResourcepart(); + } + extractChatState(conversation, packet); + updateLastseen(packet, account, true); + String body = packet.getBody(); + if (body.matches("^\\?OTRv\\d{1,2}\\?.*")) { + conversation.endOtrIfNeeded(); + } + if (!conversation.hasValidOtrSession()) { + if (properlyAddressed) { + conversation.startOtrSession(presence,false); + } else { + return null; + } + } else { + String foreignPresence = conversation.getOtrSession() + .getSessionID().getUserID(); + if (!foreignPresence.equals(presence)) { + conversation.endOtrIfNeeded(); + if (properlyAddressed) { + conversation.startOtrSession(presence, false); + } else { + return null; + } + } + } + try { + conversation.setLastReceivedOtrMessageId(packet.getId()); + Session otrSession = conversation.getOtrSession(); + SessionStatus before = otrSession.getSessionStatus(); + body = otrSession.transformReceiving(body); + SessionStatus after = otrSession.getSessionStatus(); + if ((before != after) && (after == SessionStatus.ENCRYPTED)) { + conversation.setNextEncryption(Message.ENCRYPTION_OTR); + mXmppConnectionService.onOtrSessionEstablished(conversation); + } else if ((before != after) && (after == SessionStatus.FINISHED)) { + conversation.setNextEncryption(Message.ENCRYPTION_NONE); + 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, body, Message.ENCRYPTION_OTR, + Message.STATUS_RECEIVED); + finishedMessage.setTime(getTimestamp(packet)); + finishedMessage.setRemoteMsgId(packet.getId()); + finishedMessage.markable = isMarkable(packet); + finishedMessage.setCounterpart(from); + conversation.setLastReceivedOtrMessageId(null); + return finishedMessage; + } catch (Exception e) { + conversation.resetOtrSession(); + return null; + } + } + + private Message parseGroupchat(MessagePacket packet, Account account) { + int status; + final Jid from = packet.getFrom(); + if (from == null) { + return null; + } + if (mXmppConnectionService.find(account.pendingConferenceLeaves, + account, from.toBareJid()) != null) { + return null; + } + Conversation conversation = mXmppConnectionService + .findOrCreateConversation(account, from.toBareJid(), true); + final Jid trueCounterpart = conversation.getMucOptions().getTrueCounterpart(from.getResourcepart()); + if (trueCounterpart != null) { + updateLastseen(packet, account, trueCounterpart, false); + } + if (packet.hasChild("subject")) { + conversation.setHasMessagesLeftOnServer(true); + conversation.getMucOptions().setSubject(packet.findChild("subject").getContent()); + mXmppConnectionService.updateConversationUi(); + return null; + } + + final Element x = packet.findChild("x", "http://jabber.org/protocol/muc#user"); + if (from.isBareJid() && (x == null || !x.hasChild("status"))) { + return null; + } else if (from.isBareJid() && x.hasChild("status")) { + for(Element child : x.getChildren()) { + if (child.getName().equals("status")) { + String code = child.getAttribute("code"); + if (code.contains(MucOptions.STATUS_CODE_ROOM_CONFIG_CHANGED)) { + mXmppConnectionService.fetchConferenceConfiguration(conversation); + } + } + } + return null; + } + + if (from.getResourcepart().equals(conversation.getMucOptions().getActualNick())) { + if (mXmppConnectionService.markMessage(conversation, + packet.getId(), Message.STATUS_SEND_RECEIVED)) { + return null; + } else if (packet.getId() == null) { + Message message = conversation.findSentMessageWithBody(packet.getBody()); + if (message != null) { + mXmppConnectionService.markMessage(message,Message.STATUS_SEND_RECEIVED); + return null; + } else { + status = Message.STATUS_SEND; + } + } else { + status = Message.STATUS_SEND; + } + } else { + status = Message.STATUS_RECEIVED; + } + String pgpBody = getPgpBody(packet); + Message finishedMessage; + if (pgpBody == null) { + finishedMessage = new Message(conversation, + packet.getBody(), Message.ENCRYPTION_NONE, status); + } else { + finishedMessage = new Message(conversation, pgpBody, + Message.ENCRYPTION_PGP, status); + } + finishedMessage.setRemoteMsgId(packet.getId()); + finishedMessage.markable = isMarkable(packet); + finishedMessage.setCounterpart(from); + if (status == Message.STATUS_RECEIVED) { + finishedMessage.setTrueCounterpart(conversation.getMucOptions() + .getTrueCounterpart(from.getResourcepart())); + } + if (packet.hasChild("delay") + && conversation.hasDuplicateMessage(finishedMessage)) { + return null; + } + finishedMessage.setTime(getTimestamp(packet)); + return finishedMessage; + } + + private Message parseCarbonMessage(final MessagePacket packet, final Account account) { + int status; + final Jid 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")) { + final Jid to = message.getAttributeAsJid("to"); + if (to != null) { + final Conversation conversation = mXmppConnectionService.find( + mXmppConnectionService.getConversations(), account, + to.toBareJid()); + if (conversation != null) { + mXmppConnectionService.markRead(conversation); + } + } + } + return null; + } + if (status == Message.STATUS_RECEIVED) { + fullJid = message.getAttributeAsJid("from"); + if (fullJid == null) { + return null; + } else { + updateLastseen(message, account, true); + } + } else { + fullJid = message.getAttributeAsJid("to"); + if (fullJid == null) { + return null; + } + } + if (message.hasChild("x","http://jabber.org/protocol/muc#user") + && "chat".equals(message.getAttribute("type"))) { + return null; + } + Conversation conversation = mXmppConnectionService + .findOrCreateConversation(account, fullJid.toBareJid(), false); + String pgpBody = getPgpBody(message); + Message finishedMessage; + if (pgpBody != null) { + finishedMessage = new Message(conversation, pgpBody, + Message.ENCRYPTION_PGP, status); + } else { + String body = message.findChild("body").getContent(); + finishedMessage = new Message(conversation, body, + Message.ENCRYPTION_NONE, status); + } + extractChatState(conversation,message); + finishedMessage.setTime(getTimestamp(message)); + finishedMessage.setRemoteMsgId(message.getAttribute("id")); + finishedMessage.markable = isMarkable(message); + finishedMessage.setCounterpart(fullJid); + if (conversation.getMode() == Conversation.MODE_MULTI + && !fullJid.isBareJid()) { + finishedMessage.setType(Message.TYPE_PRIVATE); + finishedMessage.setTrueCounterpart(conversation.getMucOptions() + .getTrueCounterpart(fullJid.getResourcepart())); + if (conversation.hasDuplicateMessage(finishedMessage)) { + return null; + } + } + return finishedMessage; + } + + private Message parseMamMessage(MessagePacket packet, final Account account) { + final Element result = packet.findChild("result","urn:xmpp:mam:0"); + if (result == null ) { + return null; + } + final MessageArchiveService.Query query = this.mXmppConnectionService.getMessageArchiveService().findQuery(result.getAttribute("queryid")); + if (query!=null) { + query.incrementTotalCount(); + } + final Element forwarded = result.findChild("forwarded","urn:xmpp:forward:0"); + if (forwarded == null) { + return null; + } + final Element message = forwarded.findChild("message"); + if (message == null) { + return null; + } + final Element body = message.findChild("body"); + if (body == null || message.hasChild("private","urn:xmpp:carbons:2") || message.hasChild("no-copy","urn:xmpp:hints")) { + return null; + } + int encryption; + String content = getPgpBody(message); + if (content != null) { + encryption = Message.ENCRYPTION_PGP; + } else { + encryption = Message.ENCRYPTION_NONE; + content = body.getContent(); + } + if (content == null) { + return null; + } + final long timestamp = getTimestamp(forwarded); + final Jid to = message.getAttributeAsJid("to"); + final Jid from = message.getAttributeAsJid("from"); + Jid counterpart; + int status; + Conversation conversation; + if (from!=null && to != null && from.toBareJid().equals(account.getJid().toBareJid())) { + status = Message.STATUS_SEND; + conversation = this.mXmppConnectionService.findOrCreateConversation(account,to.toBareJid(),false,query); + counterpart = to; + } else if (from !=null && to != null) { + status = Message.STATUS_RECEIVED; + conversation = this.mXmppConnectionService.findOrCreateConversation(account,from.toBareJid(),false,query); + counterpart = from; + } else { + return null; + } + Message finishedMessage = new Message(conversation,content,encryption,status); + finishedMessage.setTime(timestamp); + finishedMessage.setCounterpart(counterpart); + finishedMessage.setRemoteMsgId(message.getAttribute("id")); + finishedMessage.setServerMsgId(result.getAttribute("id")); + if (conversation.hasDuplicateMessage(finishedMessage)) { + return null; + } + if (query!=null) { + query.incrementMessageCount(); + } + return finishedMessage; + } + + private void parseError(final MessagePacket packet, final Account account) { + final Jid from = packet.getFrom(); + mXmppConnectionService.markMessage(account, from.toBareJid(), + packet.getId(), Message.STATUS_SEND_FAILED); + } + + private void parseNonMessage(Element packet, Account account) { + final Jid from = packet.getAttributeAsJid("from"); + if (extractChatState(from == null ? null : mXmppConnectionService.find(account,from), packet)) { + mXmppConnectionService.updateConversationUi(); + } + Element invite = extractInvite(packet); + if (invite != null) { + Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, from, true); + if (!conversation.getMucOptions().online()) { + Element password = invite.findChild("password"); + conversation.getMucOptions().setPassword(password == null ? null : password.getContent()); + mXmppConnectionService.databaseBackend.updateConversation(conversation); + mXmppConnectionService.joinMuc(conversation); + mXmppConnectionService.updateConversationUi(); + } + } + if (packet.hasChild("event", "http://jabber.org/protocol/pubsub#event")) { + Element event = packet.findChild("event", + "http://jabber.org/protocol/pubsub#event"); + parseEvent(event, 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); + final Message displayedMessage = mXmppConnectionService.markMessage(account, from.toBareJid(), 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(); + } + } 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.toBareJid(), + 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.toBareJid(), + id, Message.STATUS_SEND_RECEIVED); + } + } + + private Element extractInvite(Element message) { + Element x = message.findChild("x","http://jabber.org/protocol/muc#user"); + if (x == null) { + x = message.findChild("x","jabber:x:conference"); + } + if (x != null && x.hasChild("invite")) { + return x; + } else { + return null; + } + } + + private void parseEvent(final Element event, final Jid from, final Account account) { + Element items = event.findChild("items"); + if (items == null) { + return; + } + String node = items.getAttribute("node"); + if (node == null) { + return; + } + 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().toBareJid().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()); + mXmppConnectionService.getAvatarService().clear(account); + mXmppConnectionService.updateConversationUi(); + mXmppConnectionService.updateAccountUi(); + } + } + } + } + } + + 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; + 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") && extractInvite(packet) == null) { + 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(); + mXmppConnectionService.markRead(message.getConversation()); + } else { + message.markUnread(); + } + } + } else if (packet.hasChild("result","urn:xmpp:mam:0")) { + message = parseMamMessage(packet, account); + if (message != null) { + Conversation conversation = message.getConversation(); + conversation.add(message); + mXmppConnectionService.databaseBackend.createMessage(message); + } + return; + } else if (packet.hasChild("fin","urn:xmpp:mam:0")) { + Element fin = packet.findChild("fin","urn:xmpp:mam:0"); + mXmppConnectionService.getMessageArchiveService().processFin(fin); + } 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(); + } else { + mXmppConnectionService.markRead(message.getConversation()); + account.activateGracePeriod(); + } + } + } 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 ((Settings.CONFIRM_MESSAGE_RECEIVED) + && ((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 (account.getXmppConnection() != null && account.getXmppConnection().getFeatures().advancedStreamFeaturesLoaded()) { + if (conversation.setLastMessageTransmitted(System.currentTimeMillis())) { + mXmppConnectionService.updateConversation(conversation); + } + } + + if (message.getStatus() == Message.STATUS_RECEIVED + && conversation.getOtrSession() != null + && !conversation.getOtrSession().getSessionID().getUserID() + .equals(message.getCounterpart().getResourcepart())) { + conversation.endOtrIfNeeded(); + } + + if (packet.getType() != MessagePacket.TYPE_ERROR) { + if (message.getEncryption() == Message.ENCRYPTION_NONE + || mXmppConnectionService.saveEncryptedMessages()) { + mXmppConnectionService.databaseBackend.createMessage(message); + } + } + final HttpConnectionManager manager = this.mXmppConnectionService.getHttpConnectionManager(); + if (message.trusted() + && Settings.DOWNLOAD_IMAGE_LINKS + && mXmppConnectionService.isDownloadAllowedInConnection() + && message.bodyContainsDownloadable() + && manager.getAutoAcceptFileSize() > 0) { + manager.createNewConnection(message); + } else if (!message.isRead()) { + 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()); + } + } + } +} |