1package eu.siacs.conversations.parser;
2
3import android.os.Build;
4import android.text.Html;
5import android.util.Log;
6import android.util.Pair;
7
8import net.java.otr4j.session.Session;
9import net.java.otr4j.session.SessionStatus;
10
11import java.text.SimpleDateFormat;
12import java.util.ArrayList;
13import java.util.Arrays;
14import java.util.Date;
15import java.util.List;
16import java.util.Set;
17import java.util.UUID;
18
19import eu.siacs.conversations.Config;
20import eu.siacs.conversations.crypto.OtrService;
21import eu.siacs.conversations.crypto.axolotl.AxolotlService;
22import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
23import eu.siacs.conversations.entities.Account;
24import eu.siacs.conversations.entities.Bookmark;
25import eu.siacs.conversations.entities.Contact;
26import eu.siacs.conversations.entities.Conversation;
27import eu.siacs.conversations.entities.Message;
28import eu.siacs.conversations.entities.MucOptions;
29import eu.siacs.conversations.entities.Presence;
30import eu.siacs.conversations.entities.ServiceDiscoveryResult;
31import eu.siacs.conversations.http.HttpConnectionManager;
32import eu.siacs.conversations.services.MessageArchiveService;
33import eu.siacs.conversations.services.XmppConnectionService;
34import eu.siacs.conversations.utils.CryptoHelper;
35import eu.siacs.conversations.xml.Namespace;
36import eu.siacs.conversations.xml.Element;
37import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
38import eu.siacs.conversations.xmpp.chatstate.ChatState;
39import eu.siacs.conversations.xmpp.jid.Jid;
40import eu.siacs.conversations.xmpp.pep.Avatar;
41import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
42
43public class MessageParser extends AbstractParser implements OnMessagePacketReceived {
44
45 private static final List<String> CLIENTS_SENDING_HTML_IN_OTR = Arrays.asList("Pidgin","Adium","Trillian");
46
47 public MessageParser(XmppConnectionService service) {
48 super(service);
49 }
50
51 private boolean extractChatState(Conversation c, final boolean isTypeGroupChat, final MessagePacket packet) {
52 ChatState state = ChatState.parse(packet);
53 if (state != null && c != null) {
54 final Account account = c.getAccount();
55 Jid from = packet.getFrom();
56 if (from.toBareJid().equals(account.getJid().toBareJid())) {
57 c.setOutgoingChatState(state);
58 if (state == ChatState.ACTIVE || state == ChatState.COMPOSING) {
59 mXmppConnectionService.markRead(c);
60 activateGracePeriod(account);
61 }
62 return false;
63 } else {
64 if (isTypeGroupChat) {
65 MucOptions.User user = c.getMucOptions().findUserByFullJid(from);
66 if (user != null) {
67 return user.setChatState(state);
68 } else {
69 return false;
70 }
71 } else {
72 return c.setIncomingChatState(state);
73 }
74 }
75 }
76 return false;
77 }
78
79 private Message parseOtrChat(String body, Jid from, String id, Conversation conversation) {
80 String presence;
81 if (from.isBareJid()) {
82 presence = "";
83 } else {
84 presence = from.getResourcepart();
85 }
86 if (body.matches("^\\?OTRv\\d{1,2}\\?.*")) {
87 conversation.endOtrIfNeeded();
88 }
89 if (!conversation.hasValidOtrSession()) {
90 conversation.startOtrSession(presence,false);
91 } else {
92 String foreignPresence = conversation.getOtrSession().getSessionID().getUserID();
93 if (!foreignPresence.equals(presence)) {
94 conversation.endOtrIfNeeded();
95 conversation.startOtrSession(presence, false);
96 }
97 }
98 try {
99 conversation.setLastReceivedOtrMessageId(id);
100 Session otrSession = conversation.getOtrSession();
101 body = otrSession.transformReceiving(body);
102 SessionStatus status = otrSession.getSessionStatus();
103 if (body == null && status == SessionStatus.ENCRYPTED) {
104 mXmppConnectionService.onOtrSessionEstablished(conversation);
105 return null;
106 } else if (body == null && status == SessionStatus.FINISHED) {
107 conversation.resetOtrSession();
108 mXmppConnectionService.updateConversationUi();
109 return null;
110 } else if (body == null || (body.isEmpty())) {
111 return null;
112 }
113 if (body.startsWith(CryptoHelper.FILETRANSFER)) {
114 String key = body.substring(CryptoHelper.FILETRANSFER.length());
115 conversation.setSymmetricKey(CryptoHelper.hexToBytes(key));
116 return null;
117 }
118 if (clientMightSendHtml(conversation.getAccount(), from)) {
119 Log.d(Config.LOGTAG,conversation.getAccount().getJid().toBareJid()+": received OTR message from bad behaving client. escaping HTML…");
120 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
121 body = Html.fromHtml(body,Html.FROM_HTML_MODE_LEGACY).toString();
122 } else {
123 body = Html.fromHtml(body).toString();
124 }
125 }
126
127 final OtrService otrService = conversation.getAccount().getOtrService();
128 Message finishedMessage = new Message(conversation, body, Message.ENCRYPTION_OTR, Message.STATUS_RECEIVED);
129 finishedMessage.setFingerprint(otrService.getFingerprint(otrSession.getRemotePublicKey()));
130 conversation.setLastReceivedOtrMessageId(null);
131
132 return finishedMessage;
133 } catch (Exception e) {
134 conversation.resetOtrSession();
135 return null;
136 }
137 }
138
139 private static boolean clientMightSendHtml(Account account, Jid from) {
140 String resource = from.getResourcepart();
141 if (resource == null) {
142 return false;
143 }
144 Presence presence = account.getRoster().getContact(from).getPresences().getPresences().get(resource);
145 ServiceDiscoveryResult disco = presence == null ? null : presence.getServiceDiscoveryResult();
146 if (disco == null) {
147 return false;
148 }
149 return hasIdentityKnowForSendingHtml(disco.getIdentities());
150 }
151
152 private static boolean hasIdentityKnowForSendingHtml(List<ServiceDiscoveryResult.Identity> identities) {
153 for(ServiceDiscoveryResult.Identity identity : identities) {
154 if (identity.getName() != null) {
155 if (CLIENTS_SENDING_HTML_IN_OTR.contains(identity.getName())) {
156 return true;
157 }
158 }
159 }
160 return false;
161 }
162
163 private Message parseAxolotlChat(Element axolotlMessage, Jid from, Conversation conversation, int status) {
164 AxolotlService service = conversation.getAccount().getAxolotlService();
165 XmppAxolotlMessage xmppAxolotlMessage;
166 try {
167 xmppAxolotlMessage = XmppAxolotlMessage.fromElement(axolotlMessage, from.toBareJid());
168 } catch (Exception e) {
169 Log.d(Config.LOGTAG,conversation.getAccount().getJid().toBareJid()+": invalid omemo message received "+e.getMessage());
170 return null;
171 }
172 XmppAxolotlMessage.XmppAxolotlPlaintextMessage plaintextMessage = service.processReceivingPayloadMessage(xmppAxolotlMessage);
173 if(plaintextMessage != null) {
174 Message finishedMessage = new Message(conversation, plaintextMessage.getPlaintext(), Message.ENCRYPTION_AXOLOTL, status);
175 finishedMessage.setFingerprint(plaintextMessage.getFingerprint());
176 Log.d(Config.LOGTAG, AxolotlService.getLogprefix(finishedMessage.getConversation().getAccount())+" Received Message with session fingerprint: "+plaintextMessage.getFingerprint());
177 return finishedMessage;
178 } else {
179 return null;
180 }
181 }
182
183 private class Invite {
184 final Jid jid;
185 final String password;
186 final Contact inviter;
187 Invite(Jid jid, String password, Contact inviter) {
188 this.jid = jid;
189 this.password = password;
190 this.inviter = inviter;
191 }
192
193 public boolean execute(Account account) {
194 if (jid != null) {
195 Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, jid, true, false);
196 if (!conversation.getMucOptions().online()) {
197 conversation.getMucOptions().setPassword(password);
198 mXmppConnectionService.databaseBackend.updateConversation(conversation);
199 mXmppConnectionService.joinMuc(conversation, inviter != null && inviter.mutualPresenceSubscription());
200 mXmppConnectionService.updateConversationUi();
201 }
202 return true;
203 }
204 return false;
205 }
206 }
207
208 private Invite extractInvite(Account account, Element message) {
209 Element x = message.findChild("x", "http://jabber.org/protocol/muc#user");
210 if (x != null) {
211 Element invite = x.findChild("invite");
212 if (invite != null) {
213 Element pw = x.findChild("password");
214 Jid from = invite.getAttributeAsJid("from");
215 Contact contact = from == null ? null : account.getRoster().getContact(from);
216 return new Invite(message.getAttributeAsJid("from"), pw != null ? pw.getContent(): null, contact);
217 }
218 } else {
219 x = message.findChild("x","jabber:x:conference");
220 if (x != null) {
221 Jid from = message.getAttributeAsJid("from");
222 Contact contact = from == null ? null : account.getRoster().getContact(from);
223 return new Invite(x.getAttributeAsJid("jid"),x.getAttribute("password"),contact);
224 }
225 }
226 return null;
227 }
228
229 private static String extractStanzaId(Element packet, boolean isTypeGroupChat, Conversation conversation) {
230 final Jid by;
231 final boolean safeToExtract;
232 if (isTypeGroupChat) {
233 by = conversation.getJid().toBareJid();
234 safeToExtract = conversation.getMucOptions().hasFeature(Namespace.STANZA_IDS);
235 } else {
236 Account account = conversation.getAccount();
237 by = account.getJid().toBareJid();
238 safeToExtract = account.getXmppConnection().getFeatures().stanzaIds();
239 }
240 return safeToExtract ? extractStanzaId(packet, by) : null;
241 }
242
243 private static String extractStanzaId(Element packet, Jid by) {
244 for(Element child : packet.getChildren()) {
245 if (child.getName().equals("stanza-id")
246 && Namespace.STANZA_IDS.equals(child.getNamespace())
247 && by.equals(child.getAttributeAsJid("by"))) {
248 return child.getAttribute("id");
249 }
250 }
251 return null;
252 }
253
254 private void parseEvent(final Element event, final Jid from, final Account account) {
255 Element items = event.findChild("items");
256 String node = items == null ? null : items.getAttribute("node");
257 if ("urn:xmpp:avatar:metadata".equals(node)) {
258 Avatar avatar = Avatar.parseMetadata(items);
259 if (avatar != null) {
260 avatar.owner = from.toBareJid();
261 if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
262 if (account.getJid().toBareJid().equals(from)) {
263 if (account.setAvatar(avatar.getFilename())) {
264 mXmppConnectionService.databaseBackend.updateAccount(account);
265 }
266 mXmppConnectionService.getAvatarService().clear(account);
267 mXmppConnectionService.updateConversationUi();
268 mXmppConnectionService.updateAccountUi();
269 } else {
270 Contact contact = account.getRoster().getContact(from);
271 contact.setAvatar(avatar);
272 mXmppConnectionService.getAvatarService().clear(contact);
273 mXmppConnectionService.updateConversationUi();
274 mXmppConnectionService.updateRosterUi();
275 }
276 } else if (mXmppConnectionService.isDataSaverDisabled()) {
277 mXmppConnectionService.fetchAvatar(account, avatar);
278 }
279 }
280 } else if ("http://jabber.org/protocol/nick".equals(node)) {
281 Element i = items.findChild("item");
282 Element nick = i == null ? null : i.findChild("nick", "http://jabber.org/protocol/nick");
283 if (nick != null && nick.getContent() != null) {
284 Contact contact = account.getRoster().getContact(from);
285 contact.setPresenceName(nick.getContent());
286 mXmppConnectionService.getAvatarService().clear(account);
287 mXmppConnectionService.updateConversationUi();
288 mXmppConnectionService.updateAccountUi();
289 }
290 } else if (AxolotlService.PEP_DEVICE_LIST.equals(node)) {
291
292 Element item = items.findChild("item");
293 Set<Integer> deviceIds = mXmppConnectionService.getIqParser().deviceIds(item);
294 Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account)+"Received PEP device list ("+deviceIds+") update from "+ from + ", processing...");
295 AxolotlService axolotlService = account.getAxolotlService();
296 axolotlService.registerDevices(from, deviceIds);
297 mXmppConnectionService.updateAccountUi();
298 }
299 }
300
301 private boolean handleErrorMessage(Account account, MessagePacket packet) {
302 if (packet.getType() == MessagePacket.TYPE_ERROR) {
303 Jid from = packet.getFrom();
304 if (from != null) {
305 Message message = mXmppConnectionService.markMessage(account,
306 from.toBareJid(),
307 packet.getId(),
308 Message.STATUS_SEND_FAILED,
309 extractErrorMessage(packet));
310 if (message != null) {
311 if (message.getEncryption() == Message.ENCRYPTION_OTR) {
312 message.getConversation().endOtrIfNeeded();
313 }
314 }
315 }
316 return true;
317 }
318 return false;
319 }
320
321 @Override
322 public void onMessagePacketReceived(Account account, MessagePacket original) {
323 if (handleErrorMessage(account, original)) {
324 return;
325 }
326 final MessagePacket packet;
327 Long timestamp = null;
328 final boolean isForwarded;
329 boolean isCarbon = false;
330 String serverMsgId = null;
331 final Element fin = original.findChild("fin", Namespace.MAM_LEGACY);
332 if (fin != null) {
333 mXmppConnectionService.getMessageArchiveService().processFinLegacy(fin,original.getFrom());
334 return;
335 }
336 final boolean mamLegacy = original.hasChild("result", Namespace.MAM_LEGACY);
337 final Element result = original.findChild("result",mamLegacy ? Namespace.MAM_LEGACY : Namespace.MAM);
338 final MessageArchiveService.Query query = result == null ? null : mXmppConnectionService.getMessageArchiveService().findQuery(result.getAttribute("queryid"));
339 if (query != null && query.validFrom(original.getFrom())) {
340 Pair<MessagePacket, Long> f = original.getForwardedMessagePacket("result", mamLegacy ? Namespace.MAM_LEGACY : Namespace.MAM);
341 if (f == null) {
342 return;
343 }
344 timestamp = f.second;
345 packet = f.first;
346 isForwarded = true;
347 serverMsgId = result.getAttribute("id");
348 query.incrementMessageCount();
349 } else if (query != null) {
350 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": received mam result from invalid sender");
351 return;
352 } else if (original.fromServer(account)) {
353 Pair<MessagePacket, Long> f;
354 f = original.getForwardedMessagePacket("received", "urn:xmpp:carbons:2");
355 f = f == null ? original.getForwardedMessagePacket("sent", "urn:xmpp:carbons:2") : f;
356 packet = f != null ? f.first : original;
357 if (handleErrorMessage(account, packet)) {
358 return;
359 }
360 timestamp = f != null ? f.second : null;
361 isCarbon = f != null;
362 isForwarded = isCarbon;
363 } else {
364 packet = original;
365 isForwarded = false;
366 }
367
368 if (timestamp == null) {
369 timestamp = AbstractParser.parseTimestamp(original,AbstractParser.parseTimestamp(packet));
370 }
371 final String body = packet.getBody();
372 final Element mucUserElement = packet.findChild("x", "http://jabber.org/protocol/muc#user");
373 final String pgpEncrypted = packet.findChildContent("x", "jabber:x:encrypted");
374 final Element replaceElement = packet.findChild("replace", "urn:xmpp:message-correct:0");
375 final Element oob = packet.findChild("x", Namespace.OOB);
376 final String oobUrl = oob != null ? oob.findChildContent("url") : null;
377 final String replacementId = replaceElement == null ? null : replaceElement.getAttribute("id");
378 final Element axolotlEncrypted = packet.findChild(XmppAxolotlMessage.CONTAINERTAG, AxolotlService.PEP_PREFIX);
379 int status;
380 final Jid counterpart;
381 final Jid to = packet.getTo();
382 final Jid from = packet.getFrom();
383 final Element originId = packet.findChild("origin-id",Namespace.STANZA_IDS);
384 final String remoteMsgId;
385 if (originId != null && originId.getAttribute("id") != null) {
386 remoteMsgId = originId.getAttribute("id");
387 } else {
388 remoteMsgId = packet.getId();
389 }
390 boolean notify = false;
391
392 if (from == null) {
393 Log.d(Config.LOGTAG,"no from in: "+packet.toString());
394 return;
395 }
396
397 boolean isTypeGroupChat = packet.getType() == MessagePacket.TYPE_GROUPCHAT;
398 boolean isProperlyAddressed = (to != null ) && (!to.isBareJid() || account.countPresences() == 0);
399 boolean isMucStatusMessage = from.isBareJid() && mucUserElement != null && mucUserElement.hasChild("status");
400 if (packet.fromAccount(account)) {
401 status = Message.STATUS_SEND;
402 counterpart = to != null ? to : account.getJid();
403 } else {
404 status = Message.STATUS_RECEIVED;
405 counterpart = from;
406 }
407
408 Invite invite = extractInvite(account, packet);
409 if (invite != null && invite.execute(account)) {
410 return;
411 }
412
413 if (query == null && extractChatState(mXmppConnectionService.find(account, counterpart.toBareJid()), isTypeGroupChat, packet)) {
414 mXmppConnectionService.updateConversationUi();
415 }
416
417 if ((body != null || pgpEncrypted != null || axolotlEncrypted != null || oobUrl != null) && !isMucStatusMessage) {
418 final Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, counterpart.toBareJid(), isTypeGroupChat, false, query, false);
419 final boolean conversationMultiMode = conversation.getMode() == Conversation.MODE_MULTI;
420
421 if (serverMsgId == null) {
422 serverMsgId = extractStanzaId(packet, isTypeGroupChat, conversation);
423 }
424
425 if (isTypeGroupChat) {
426 if (conversation.getMucOptions().isSelf(counterpart)) {
427 status = Message.STATUS_SEND_RECEIVED;
428 isCarbon = true; //not really carbon but received from another resource
429 if (mXmppConnectionService.markMessage(conversation, remoteMsgId, status, serverMsgId)) {
430 return;
431 } else if (remoteMsgId == null || Config.IGNORE_ID_REWRITE_IN_MUC) {
432 Message message = conversation.findSentMessageWithBody(packet.getBody());
433 if (message != null) {
434 mXmppConnectionService.markMessage(message, status);
435 return;
436 }
437 }
438 } else {
439 status = Message.STATUS_RECEIVED;
440 }
441 }
442 final Message message;
443 if (body != null && body.startsWith("?OTR") && Config.supportOtr()) {
444 if (!isForwarded && !isTypeGroupChat && isProperlyAddressed && !conversationMultiMode) {
445 message = parseOtrChat(body, from, remoteMsgId, conversation);
446 if (message == null) {
447 return;
448 }
449 } else {
450 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": ignoring OTR message from "+from+" isForwarded="+Boolean.toString(isForwarded)+", isProperlyAddressed="+Boolean.valueOf(isProperlyAddressed));
451 message = new Message(conversation, body, Message.ENCRYPTION_NONE, status);
452 }
453 } else if (pgpEncrypted != null && Config.supportOpenPgp()) {
454 message = new Message(conversation, pgpEncrypted, Message.ENCRYPTION_PGP, status);
455 } else if (axolotlEncrypted != null && Config.supportOmemo()) {
456 Jid origin;
457 if (conversationMultiMode) {
458 final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
459 origin = getTrueCounterpart(query != null ? mucUserElement : null, fallback);
460 if (origin == null) {
461 Log.d(Config.LOGTAG, "axolotl message in non anonymous conference received");
462 return;
463 }
464 } else {
465 origin = from;
466 }
467 message = parseAxolotlChat(axolotlEncrypted, origin, conversation, status);
468 if (message == null) {
469 return;
470 }
471 if (conversationMultiMode) {
472 message.setTrueCounterpart(origin);
473 }
474 } else if (body == null && oobUrl != null) {
475 message = new Message(conversation, oobUrl, Message.ENCRYPTION_NONE, status);
476 message.setOob(true);
477 if (CryptoHelper.isPgpEncryptedUrl(oobUrl)) {
478 message.setEncryption(Message.ENCRYPTION_DECRYPTED);
479 }
480 } else {
481 message = new Message(conversation, body, Message.ENCRYPTION_NONE, status);
482 }
483
484 message.setCounterpart(counterpart);
485 message.setRemoteMsgId(remoteMsgId);
486 message.setServerMsgId(serverMsgId);
487 message.setCarbon(isCarbon);
488 message.setTime(timestamp);
489 if (body != null && body.equals(oobUrl)) {
490 message.setOob(true);
491 if (CryptoHelper.isPgpEncryptedUrl(oobUrl)) {
492 message.setEncryption(Message.ENCRYPTION_DECRYPTED);
493 }
494 }
495 message.markable = packet.hasChild("markable", "urn:xmpp:chat-markers:0");
496 if (conversationMultiMode) {
497 final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
498 Jid trueCounterpart;
499 if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL) {
500 trueCounterpart = message.getTrueCounterpart();
501 } else if (Config.PARSE_REAL_JID_FROM_MUC_MAM) {
502 trueCounterpart = getTrueCounterpart(query != null ? mucUserElement : null, fallback);
503 } else {
504 trueCounterpart = fallback;
505 }
506 if (trueCounterpart != null && trueCounterpart.toBareJid().equals(account.getJid().toBareJid())) {
507 status = isTypeGroupChat ? Message.STATUS_SEND_RECEIVED : Message.STATUS_SEND;
508 }
509 message.setStatus(status);
510 message.setTrueCounterpart(trueCounterpart);
511 if (!isTypeGroupChat) {
512 message.setType(Message.TYPE_PRIVATE);
513 }
514 } else {
515 updateLastseen(account, from);
516 }
517
518 if (replacementId != null && mXmppConnectionService.allowMessageCorrection()) {
519 Message replacedMessage = conversation.findMessageWithRemoteIdAndCounterpart(replacementId,
520 counterpart,
521 message.getStatus() == Message.STATUS_RECEIVED,
522 message.isCarbon());
523 if (replacedMessage != null) {
524 final boolean fingerprintsMatch = replacedMessage.getFingerprint() == null
525 || replacedMessage.getFingerprint().equals(message.getFingerprint());
526 final boolean trueCountersMatch = replacedMessage.getTrueCounterpart() != null
527 && replacedMessage.getTrueCounterpart().equals(message.getTrueCounterpart());
528 final boolean duplicate = conversation.hasDuplicateMessage(message);
529 if (fingerprintsMatch && (trueCountersMatch || !conversationMultiMode) && !duplicate) {
530 Log.d(Config.LOGTAG, "replaced message '" + replacedMessage.getBody() + "' with '" + message.getBody() + "'");
531 synchronized (replacedMessage) {
532 final String uuid = replacedMessage.getUuid();
533 replacedMessage.setUuid(UUID.randomUUID().toString());
534 replacedMessage.setBody(message.getBody());
535 replacedMessage.setEdited(replacedMessage.getRemoteMsgId());
536 replacedMessage.setRemoteMsgId(remoteMsgId);
537 replacedMessage.setEncryption(message.getEncryption());
538 if (replacedMessage.getStatus() == Message.STATUS_RECEIVED) {
539 replacedMessage.markUnread();
540 }
541 mXmppConnectionService.updateMessage(replacedMessage, uuid);
542 mXmppConnectionService.getNotificationService().updateNotification(false);
543 if (mXmppConnectionService.confirmMessages()
544 && (replacedMessage.trusted() || replacedMessage.getType() == Message.TYPE_PRIVATE)
545 && remoteMsgId != null
546 && !isForwarded
547 && !isTypeGroupChat) {
548 sendMessageReceipts(account, packet);
549 }
550 if (replacedMessage.getEncryption() == Message.ENCRYPTION_PGP) {
551 conversation.getAccount().getPgpDecryptionService().discard(replacedMessage);
552 conversation.getAccount().getPgpDecryptionService().decrypt(replacedMessage, false);
553 }
554 }
555 return;
556 } else {
557 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": received message correction but verification didn't check out");
558 }
559 }
560 }
561
562 long deletionDate = mXmppConnectionService.getAutomaticMessageDeletionDate();
563 if (deletionDate != 0 && message.getTimeSent() < deletionDate) {
564 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": skipping message from "+message.getCounterpart().toString()+" because it was sent prior to our deletion date");
565 return;
566 }
567
568 boolean checkForDuplicates = (isTypeGroupChat && packet.hasChild("delay","urn:xmpp:delay"))
569 || message.getType() == Message.TYPE_PRIVATE
570 || message.getServerMsgId() != null;
571 if (checkForDuplicates && conversation.hasDuplicateMessage(message)) {
572 Log.d(Config.LOGTAG,"skipping duplicate message from "+message.getCounterpart().toString()+" "+message.getBody());
573 return;
574 }
575
576 if (query != null && query.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
577 conversation.prepend(message);
578 } else {
579 conversation.add(message);
580 }
581 if (query != null) {
582 query.incrementActualMessageCount();
583 }
584
585 if (query == null || query.isCatchup()) { //either no mam or catchup
586 if (status == Message.STATUS_SEND || status == Message.STATUS_SEND_RECEIVED) {
587 mXmppConnectionService.markRead(conversation);
588 if (query == null) {
589 activateGracePeriod(account);
590 }
591 } else {
592 message.markUnread();
593 notify = true;
594 }
595 }
596
597 if (message.getEncryption() == Message.ENCRYPTION_PGP) {
598 notify = conversation.getAccount().getPgpDecryptionService().decrypt(message, notify);
599 }
600
601 if (query == null) {
602 mXmppConnectionService.updateConversationUi();
603 }
604
605 if (mXmppConnectionService.confirmMessages()
606 && (message.trusted() || message.getType() == Message.TYPE_PRIVATE)
607 && remoteMsgId != null
608 && !isForwarded
609 && !isTypeGroupChat) {
610 sendMessageReceipts(account, packet);
611 }
612
613 if (message.getStatus() == Message.STATUS_RECEIVED
614 && conversation.getOtrSession() != null
615 && !conversation.getOtrSession().getSessionID().getUserID()
616 .equals(message.getCounterpart().getResourcepart())) {
617 conversation.endOtrIfNeeded();
618 }
619
620 mXmppConnectionService.databaseBackend.createMessage(message);
621 final HttpConnectionManager manager = this.mXmppConnectionService.getHttpConnectionManager();
622 if (message.trusted() && message.treatAsDownloadable() && manager.getAutoAcceptFileSize() > 0) {
623 manager.createNewDownloadConnection(message);
624 } else if (notify) {
625 if (query != null && query.isCatchup()) {
626 mXmppConnectionService.getNotificationService().pushFromBacklog(message);
627 } else if (account.getXmppConnection().isWaitingForSmCatchup()) {
628 account.getXmppConnection().incrementSmCatchupMessageCounter();
629 mXmppConnectionService.getNotificationService().pushFromBacklog(message);
630 } else {
631 mXmppConnectionService.getNotificationService().push(message);
632 }
633 }
634 } else if (!packet.hasChild("body")){ //no body
635 final Conversation conversation = mXmppConnectionService.find(account, from.toBareJid());
636 if (isTypeGroupChat) {
637 if (packet.hasChild("subject")) {
638 if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
639 conversation.setHasMessagesLeftOnServer(conversation.countMessages() > 0);
640 String subject = packet.findChildContent("subject");
641 conversation.getMucOptions().setSubject(subject);
642 final Bookmark bookmark = conversation.getBookmark();
643 if (bookmark != null && bookmark.getBookmarkName() == null) {
644 if (bookmark.setBookmarkName(subject)) {
645 mXmppConnectionService.pushBookmarks(account);
646 }
647 }
648 mXmppConnectionService.updateConversationUi();
649 return;
650 }
651 }
652 }
653 if (conversation != null && mucUserElement != null && from.isBareJid()) {
654 for (Element child : mucUserElement.getChildren()) {
655 if ("status".equals(child.getName())) {
656 try {
657 int code = Integer.parseInt(child.getAttribute("code"));
658 if ((code >= 170 && code <= 174) || (code >= 102 && code <= 104)) {
659 mXmppConnectionService.fetchConferenceConfiguration(conversation);
660 break;
661 }
662 } catch (Exception e) {
663 //ignored
664 }
665 } else if ("item".equals(child.getName())) {
666 MucOptions.User user = AbstractParser.parseItem(conversation,child);
667 Log.d(Config.LOGTAG,account.getJid()+": changing affiliation for "
668 +user.getRealJid()+" to "+user.getAffiliation()+" in "
669 +conversation.getJid().toBareJid());
670 if (!user.realJidMatchesAccount()) {
671 conversation.getMucOptions().updateUser(user);
672 mXmppConnectionService.getAvatarService().clear(conversation);
673 mXmppConnectionService.updateMucRosterUi();
674 mXmppConnectionService.updateConversationUi();
675 if (!user.getAffiliation().ranks(MucOptions.Affiliation.MEMBER)) {
676 Jid jid = user.getRealJid();
677 List<Jid> cryptoTargets = conversation.getAcceptedCryptoTargets();
678 if (cryptoTargets.remove(user.getRealJid())) {
679 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": removed "+jid+" from crypto targets of "+conversation.getName());
680 conversation.setAcceptedCryptoTargets(cryptoTargets);
681 mXmppConnectionService.updateConversation(conversation);
682 }
683 }
684 }
685 }
686 }
687 }
688 }
689
690
691
692 Element received = packet.findChild("received", "urn:xmpp:chat-markers:0");
693 if (received == null) {
694 received = packet.findChild("received", "urn:xmpp:receipts");
695 }
696 if (received != null && !packet.fromAccount(account)) {
697 mXmppConnectionService.markMessage(account, from.toBareJid(), received.getAttribute("id"), Message.STATUS_SEND_RECEIVED);
698 }
699 Element displayed = packet.findChild("displayed", "urn:xmpp:chat-markers:0");
700 if (displayed != null) {
701 if (packet.fromAccount(account)) {
702 Conversation conversation = mXmppConnectionService.find(account,counterpart.toBareJid());
703 if (conversation != null) {
704 mXmppConnectionService.markRead(conversation);
705 }
706 } else {
707 final Message displayedMessage = mXmppConnectionService.markMessage(account, from.toBareJid(), displayed.getAttribute("id"), Message.STATUS_SEND_DISPLAYED);
708 Message message = displayedMessage == null ? null : displayedMessage.prev();
709 while (message != null
710 && message.getStatus() == Message.STATUS_SEND_RECEIVED
711 && message.getTimeSent() < displayedMessage.getTimeSent()) {
712 mXmppConnectionService.markMessage(message, Message.STATUS_SEND_DISPLAYED);
713 message = message.prev();
714 }
715 }
716 }
717
718 Element event = original.findChild("event", "http://jabber.org/protocol/pubsub#event");
719 if (event != null) {
720 parseEvent(event, original.getFrom(), account);
721 }
722
723 String nick = packet.findChildContent("nick", "http://jabber.org/protocol/nick");
724 if (nick != null) {
725 Contact contact = account.getRoster().getContact(from);
726 contact.setPresenceName(nick);
727 }
728 }
729
730 private static Jid getTrueCounterpart(Element mucUserElement, Jid fallback) {
731 final Element item = mucUserElement == null ? null : mucUserElement.findChild("item");
732 Jid result = item == null ? null : item.getAttributeAsJid("jid");
733 return result != null ? result : fallback;
734 }
735
736 private void sendMessageReceipts(Account account, MessagePacket packet) {
737 ArrayList<String> receiptsNamespaces = new ArrayList<>();
738 if (packet.hasChild("markable", "urn:xmpp:chat-markers:0")) {
739 receiptsNamespaces.add("urn:xmpp:chat-markers:0");
740 }
741 if (packet.hasChild("request", "urn:xmpp:receipts")) {
742 receiptsNamespaces.add("urn:xmpp:receipts");
743 }
744 if (receiptsNamespaces.size() > 0) {
745 MessagePacket receipt = mXmppConnectionService.getMessageGenerator().received(account,
746 packet,
747 receiptsNamespaces,
748 packet.getType());
749 mXmppConnectionService.sendMessagePacket(account, receipt);
750 }
751 }
752
753 private static SimpleDateFormat TIME_FORMAT = new SimpleDateFormat("HH:mm:ss");
754
755 private void activateGracePeriod(Account account) {
756 long duration = mXmppConnectionService.getPreferences().getLong("race_period_length", 144) * 1000;
757 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": activating grace period till "+TIME_FORMAT.format(new Date(System.currentTimeMillis() + duration)));
758 account.activateGracePeriod(duration);
759 }
760}