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.Locale;
17import java.util.Set;
18import java.util.UUID;
19
20import eu.siacs.conversations.Config;
21import eu.siacs.conversations.R;
22import eu.siacs.conversations.crypto.OtrService;
23import eu.siacs.conversations.crypto.axolotl.AxolotlService;
24import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
25import eu.siacs.conversations.entities.Account;
26import eu.siacs.conversations.entities.Bookmark;
27import eu.siacs.conversations.entities.Contact;
28import eu.siacs.conversations.entities.Conversation;
29import eu.siacs.conversations.entities.Message;
30import eu.siacs.conversations.entities.MucOptions;
31import eu.siacs.conversations.entities.Presence;
32import eu.siacs.conversations.entities.ServiceDiscoveryResult;
33import eu.siacs.conversations.http.HttpConnectionManager;
34import eu.siacs.conversations.services.MessageArchiveService;
35import eu.siacs.conversations.services.XmppConnectionService;
36import eu.siacs.conversations.utils.CryptoHelper;
37import eu.siacs.conversations.xml.Namespace;
38import eu.siacs.conversations.xml.Element;
39import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
40import eu.siacs.conversations.xmpp.chatstate.ChatState;
41import eu.siacs.conversations.xmpp.jid.Jid;
42import eu.siacs.conversations.xmpp.pep.Avatar;
43import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
44
45public class MessageParser extends AbstractParser implements OnMessagePacketReceived {
46
47 private static final List<String> CLIENTS_SENDING_HTML_IN_OTR = Arrays.asList("Pidgin","Adium","Trillian");
48
49 public MessageParser(XmppConnectionService service) {
50 super(service);
51 }
52
53 private boolean extractChatState(Conversation c, final boolean isTypeGroupChat, final MessagePacket packet) {
54 ChatState state = ChatState.parse(packet);
55 if (state != null && c != null) {
56 final Account account = c.getAccount();
57 Jid from = packet.getFrom();
58 if (from.toBareJid().equals(account.getJid().toBareJid())) {
59 c.setOutgoingChatState(state);
60 if (state == ChatState.ACTIVE || state == ChatState.COMPOSING) {
61 mXmppConnectionService.markRead(c);
62 activateGracePeriod(account);
63 }
64 return false;
65 } else {
66 if (isTypeGroupChat) {
67 MucOptions.User user = c.getMucOptions().findUserByFullJid(from);
68 if (user != null) {
69 return user.setChatState(state);
70 } else {
71 return false;
72 }
73 } else {
74 return c.setIncomingChatState(state);
75 }
76 }
77 }
78 return false;
79 }
80
81 private Message parseOtrChat(String body, Jid from, String id, Conversation conversation) {
82 String presence;
83 if (from.isBareJid()) {
84 presence = "";
85 } else {
86 presence = from.getResourcepart();
87 }
88 if (body.matches("^\\?OTRv\\d{1,2}\\?.*")) {
89 conversation.endOtrIfNeeded();
90 }
91 if (!conversation.hasValidOtrSession()) {
92 conversation.startOtrSession(presence,false);
93 } else {
94 String foreignPresence = conversation.getOtrSession().getSessionID().getUserID();
95 if (!foreignPresence.equals(presence)) {
96 conversation.endOtrIfNeeded();
97 conversation.startOtrSession(presence, false);
98 }
99 }
100 try {
101 conversation.setLastReceivedOtrMessageId(id);
102 Session otrSession = conversation.getOtrSession();
103 body = otrSession.transformReceiving(body);
104 SessionStatus status = otrSession.getSessionStatus();
105 if (body == null && status == SessionStatus.ENCRYPTED) {
106 mXmppConnectionService.onOtrSessionEstablished(conversation);
107 return null;
108 } else if (body == null && status == SessionStatus.FINISHED) {
109 conversation.resetOtrSession();
110 mXmppConnectionService.updateConversationUi();
111 return null;
112 } else if (body == null || (body.isEmpty())) {
113 return null;
114 }
115 if (body.startsWith(CryptoHelper.FILETRANSFER)) {
116 String key = body.substring(CryptoHelper.FILETRANSFER.length());
117 conversation.setSymmetricKey(CryptoHelper.hexToBytes(key));
118 return null;
119 }
120 if (clientMightSendHtml(conversation.getAccount(), from)) {
121 Log.d(Config.LOGTAG,conversation.getAccount().getJid().toBareJid()+": received OTR message from bad behaving client. escaping HTML…");
122 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
123 body = Html.fromHtml(body,Html.FROM_HTML_MODE_LEGACY).toString();
124 } else {
125 body = Html.fromHtml(body).toString();
126 }
127 }
128
129 final OtrService otrService = conversation.getAccount().getOtrService();
130 Message finishedMessage = new Message(conversation, body, Message.ENCRYPTION_OTR, Message.STATUS_RECEIVED);
131 finishedMessage.setFingerprint(otrService.getFingerprint(otrSession.getRemotePublicKey()));
132 conversation.setLastReceivedOtrMessageId(null);
133
134 return finishedMessage;
135 } catch (Exception e) {
136 conversation.resetOtrSession();
137 return null;
138 }
139 }
140
141 private static boolean clientMightSendHtml(Account account, Jid from) {
142 String resource = from.getResourcepart();
143 if (resource == null) {
144 return false;
145 }
146 Presence presence = account.getRoster().getContact(from).getPresences().getPresences().get(resource);
147 ServiceDiscoveryResult disco = presence == null ? null : presence.getServiceDiscoveryResult();
148 if (disco == null) {
149 return false;
150 }
151 return hasIdentityKnowForSendingHtml(disco.getIdentities());
152 }
153
154 private static boolean hasIdentityKnowForSendingHtml(List<ServiceDiscoveryResult.Identity> identities) {
155 for(ServiceDiscoveryResult.Identity identity : identities) {
156 if (identity.getName() != null) {
157 if (CLIENTS_SENDING_HTML_IN_OTR.contains(identity.getName())) {
158 return true;
159 }
160 }
161 }
162 return false;
163 }
164
165 private Message parseAxolotlChat(Element axolotlMessage, Jid from, Conversation conversation, int status) {
166 AxolotlService service = conversation.getAccount().getAxolotlService();
167 XmppAxolotlMessage xmppAxolotlMessage;
168 try {
169 xmppAxolotlMessage = XmppAxolotlMessage.fromElement(axolotlMessage, from.toBareJid());
170 } catch (Exception e) {
171 Log.d(Config.LOGTAG,conversation.getAccount().getJid().toBareJid()+": invalid omemo message received "+e.getMessage());
172 return null;
173 }
174 XmppAxolotlMessage.XmppAxolotlPlaintextMessage plaintextMessage = service.processReceivingPayloadMessage(xmppAxolotlMessage);
175 if(plaintextMessage != null) {
176 Message finishedMessage = new Message(conversation, plaintextMessage.getPlaintext(), Message.ENCRYPTION_AXOLOTL, status);
177 finishedMessage.setFingerprint(plaintextMessage.getFingerprint());
178 Log.d(Config.LOGTAG, AxolotlService.getLogprefix(finishedMessage.getConversation().getAccount())+" Received Message with session fingerprint: "+plaintextMessage.getFingerprint());
179 return finishedMessage;
180 } else {
181 return null;
182 }
183 }
184
185 private class Invite {
186 final Jid jid;
187 final String password;
188 final Contact inviter;
189 Invite(Jid jid, String password, Contact inviter) {
190 this.jid = jid;
191 this.password = password;
192 this.inviter = inviter;
193 }
194
195 public boolean execute(Account account) {
196 if (jid != null) {
197 Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, jid, true, false);
198 if (!conversation.getMucOptions().online()) {
199 conversation.getMucOptions().setPassword(password);
200 mXmppConnectionService.databaseBackend.updateConversation(conversation);
201 mXmppConnectionService.joinMuc(conversation, inviter != null && inviter.mutualPresenceSubscription());
202 mXmppConnectionService.updateConversationUi();
203 }
204 return true;
205 }
206 return false;
207 }
208 }
209
210 private Invite extractInvite(Account account, Element message) {
211 Element x = message.findChild("x", "http://jabber.org/protocol/muc#user");
212 if (x != null) {
213 Element invite = x.findChild("invite");
214 if (invite != null) {
215 Element pw = x.findChild("password");
216 Jid from = invite.getAttributeAsJid("from");
217 Contact contact = from == null ? null : account.getRoster().getContact(from);
218 return new Invite(message.getAttributeAsJid("from"), pw != null ? pw.getContent(): null, contact);
219 }
220 } else {
221 x = message.findChild("x","jabber:x:conference");
222 if (x != null) {
223 Jid from = message.getAttributeAsJid("from");
224 Contact contact = from == null ? null : account.getRoster().getContact(from);
225 return new Invite(x.getAttributeAsJid("jid"),x.getAttribute("password"),contact);
226 }
227 }
228 return null;
229 }
230
231 private static String extractStanzaId(Element packet, boolean isTypeGroupChat, Conversation conversation) {
232 final Jid by;
233 final boolean safeToExtract;
234 if (isTypeGroupChat) {
235 by = conversation.getJid().toBareJid();
236 safeToExtract = conversation.getMucOptions().hasFeature(Namespace.STANZA_IDS);
237 } else {
238 Account account = conversation.getAccount();
239 by = account.getJid().toBareJid();
240 safeToExtract = account.getXmppConnection().getFeatures().stanzaIds();
241 }
242 return safeToExtract ? extractStanzaId(packet, by) : null;
243 }
244
245 private static String extractStanzaId(Element packet, Jid by) {
246 for(Element child : packet.getChildren()) {
247 if (child.getName().equals("stanza-id")
248 && Namespace.STANZA_IDS.equals(child.getNamespace())
249 && by.equals(child.getAttributeAsJid("by"))) {
250 return child.getAttribute("id");
251 }
252 }
253 return null;
254 }
255
256 private void parseEvent(final Element event, final Jid from, final Account account) {
257 Element items = event.findChild("items");
258 String node = items == null ? null : items.getAttribute("node");
259 if ("urn:xmpp:avatar:metadata".equals(node)) {
260 Avatar avatar = Avatar.parseMetadata(items);
261 if (avatar != null) {
262 avatar.owner = from.toBareJid();
263 if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
264 if (account.getJid().toBareJid().equals(from)) {
265 if (account.setAvatar(avatar.getFilename())) {
266 mXmppConnectionService.databaseBackend.updateAccount(account);
267 }
268 mXmppConnectionService.getAvatarService().clear(account);
269 mXmppConnectionService.updateConversationUi();
270 mXmppConnectionService.updateAccountUi();
271 } else {
272 Contact contact = account.getRoster().getContact(from);
273 contact.setAvatar(avatar);
274 mXmppConnectionService.getAvatarService().clear(contact);
275 mXmppConnectionService.updateConversationUi();
276 mXmppConnectionService.updateRosterUi();
277 }
278 } else if (mXmppConnectionService.isDataSaverDisabled()) {
279 mXmppConnectionService.fetchAvatar(account, avatar);
280 }
281 }
282 } else if ("http://jabber.org/protocol/nick".equals(node)) {
283 Element i = items.findChild("item");
284 Element nick = i == null ? null : i.findChild("nick", "http://jabber.org/protocol/nick");
285 if (nick != null && nick.getContent() != null) {
286 Contact contact = account.getRoster().getContact(from);
287 contact.setPresenceName(nick.getContent());
288 mXmppConnectionService.getAvatarService().clear(account);
289 mXmppConnectionService.updateConversationUi();
290 mXmppConnectionService.updateAccountUi();
291 }
292 } else if (AxolotlService.PEP_DEVICE_LIST.equals(node)) {
293
294 Element item = items.findChild("item");
295 Set<Integer> deviceIds = mXmppConnectionService.getIqParser().deviceIds(item);
296 Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account)+"Received PEP device list ("+deviceIds+") update from "+ from + ", processing...");
297 AxolotlService axolotlService = account.getAxolotlService();
298 axolotlService.registerDevices(from, deviceIds);
299 mXmppConnectionService.updateAccountUi();
300 }
301 }
302
303 private boolean handleErrorMessage(Account account, MessagePacket packet) {
304 if (packet.getType() == MessagePacket.TYPE_ERROR) {
305 Jid from = packet.getFrom();
306 if (from != null) {
307 Message message = mXmppConnectionService.markMessage(account,
308 from.toBareJid(),
309 packet.getId(),
310 Message.STATUS_SEND_FAILED,
311 extractErrorMessage(packet));
312 if (message != null) {
313 if (message.getEncryption() == Message.ENCRYPTION_OTR) {
314 message.getConversation().endOtrIfNeeded();
315 }
316 }
317 }
318 return true;
319 }
320 return false;
321 }
322
323 @Override
324 public void onMessagePacketReceived(Account account, MessagePacket original) {
325 if (handleErrorMessage(account, original)) {
326 return;
327 }
328 final MessagePacket packet;
329 Long timestamp = null;
330 final boolean isForwarded;
331 boolean isCarbon = false;
332 String serverMsgId = null;
333 final Element fin = original.findChild("fin", Namespace.MAM_LEGACY);
334 if (fin != null) {
335 mXmppConnectionService.getMessageArchiveService().processFinLegacy(fin,original.getFrom());
336 return;
337 }
338 final boolean mamLegacy = original.hasChild("result", Namespace.MAM_LEGACY);
339 final Element result = original.findChild("result",mamLegacy ? Namespace.MAM_LEGACY : Namespace.MAM);
340 final MessageArchiveService.Query query = result == null ? null : mXmppConnectionService.getMessageArchiveService().findQuery(result.getAttribute("queryid"));
341 if (query != null && query.validFrom(original.getFrom())) {
342 Pair<MessagePacket, Long> f = original.getForwardedMessagePacket("result", mamLegacy ? Namespace.MAM_LEGACY : Namespace.MAM);
343 if (f == null) {
344 return;
345 }
346 timestamp = f.second;
347 packet = f.first;
348 isForwarded = true;
349 serverMsgId = result.getAttribute("id");
350 query.incrementMessageCount();
351 } else if (query != null) {
352 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": received mam result from invalid sender");
353 return;
354 } else if (original.fromServer(account)) {
355 Pair<MessagePacket, Long> f;
356 f = original.getForwardedMessagePacket("received", "urn:xmpp:carbons:2");
357 f = f == null ? original.getForwardedMessagePacket("sent", "urn:xmpp:carbons:2") : f;
358 packet = f != null ? f.first : original;
359 if (handleErrorMessage(account, packet)) {
360 return;
361 }
362 timestamp = f != null ? f.second : null;
363 isCarbon = f != null;
364 isForwarded = isCarbon;
365 } else {
366 packet = original;
367 isForwarded = false;
368 }
369
370 if (timestamp == null) {
371 timestamp = AbstractParser.parseTimestamp(original,AbstractParser.parseTimestamp(packet));
372 }
373 final String body = packet.getBody();
374 final Element mucUserElement = packet.findChild("x", "http://jabber.org/protocol/muc#user");
375 final String pgpEncrypted = packet.findChildContent("x", "jabber:x:encrypted");
376 final Element replaceElement = packet.findChild("replace", "urn:xmpp:message-correct:0");
377 final Element oob = packet.findChild("x", Namespace.OOB);
378 final String oobUrl = oob != null ? oob.findChildContent("url") : null;
379 final String replacementId = replaceElement == null ? null : replaceElement.getAttribute("id");
380 final Element axolotlEncrypted = packet.findChild(XmppAxolotlMessage.CONTAINERTAG, AxolotlService.PEP_PREFIX);
381 int status;
382 final Jid counterpart;
383 final Jid to = packet.getTo();
384 final Jid from = packet.getFrom();
385 final Element originId = packet.findChild("origin-id",Namespace.STANZA_IDS);
386 final String remoteMsgId;
387 if (originId != null && originId.getAttribute("id") != null) {
388 remoteMsgId = originId.getAttribute("id");
389 } else {
390 remoteMsgId = packet.getId();
391 }
392 boolean notify = false;
393
394 if (from == null) {
395 Log.d(Config.LOGTAG,"no from in: "+packet.toString());
396 return;
397 }
398
399 boolean isTypeGroupChat = packet.getType() == MessagePacket.TYPE_GROUPCHAT;
400 boolean isProperlyAddressed = (to != null ) && (!to.isBareJid() || account.countPresences() == 0);
401 boolean isMucStatusMessage = from.isBareJid() && mucUserElement != null && mucUserElement.hasChild("status");
402 if (packet.fromAccount(account)) {
403 status = Message.STATUS_SEND;
404 counterpart = to != null ? to : account.getJid();
405 } else {
406 status = Message.STATUS_RECEIVED;
407 counterpart = from;
408 }
409
410 Invite invite = extractInvite(account, packet);
411 if (invite != null && invite.execute(account)) {
412 return;
413 }
414
415 if (query == null && extractChatState(mXmppConnectionService.find(account, counterpart.toBareJid()), isTypeGroupChat, packet)) {
416 mXmppConnectionService.updateConversationUi();
417 }
418
419 if ((body != null || pgpEncrypted != null || axolotlEncrypted != null || oobUrl != null) && !isMucStatusMessage) {
420 final Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, counterpart.toBareJid(), isTypeGroupChat, false, query, false);
421 final boolean conversationMultiMode = conversation.getMode() == Conversation.MODE_MULTI;
422
423 if (serverMsgId == null) {
424 serverMsgId = extractStanzaId(packet, isTypeGroupChat, conversation);
425 }
426
427 if (isTypeGroupChat) {
428 if (conversation.getMucOptions().isSelf(counterpart)) {
429 status = Message.STATUS_SEND_RECEIVED;
430 isCarbon = true; //not really carbon but received from another resource
431 if (mXmppConnectionService.markMessage(conversation, remoteMsgId, status, serverMsgId)) {
432 return;
433 } else if (remoteMsgId == null || Config.IGNORE_ID_REWRITE_IN_MUC) {
434 Message message = conversation.findSentMessageWithBody(packet.getBody());
435 if (message != null) {
436 mXmppConnectionService.markMessage(message, status);
437 return;
438 }
439 }
440 } else {
441 status = Message.STATUS_RECEIVED;
442 }
443 }
444 final Message message;
445 if (body != null && body.startsWith("?OTR") && Config.supportOtr()) {
446 if (!isForwarded && !isTypeGroupChat && isProperlyAddressed && !conversationMultiMode) {
447 message = parseOtrChat(body, from, remoteMsgId, conversation);
448 if (message == null) {
449 return;
450 }
451 } else {
452 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": ignoring OTR message from "+from+" isForwarded="+Boolean.toString(isForwarded)+", isProperlyAddressed="+Boolean.valueOf(isProperlyAddressed));
453 message = new Message(conversation, body, Message.ENCRYPTION_NONE, status);
454 }
455 } else if (pgpEncrypted != null && Config.supportOpenPgp()) {
456 message = new Message(conversation, pgpEncrypted, Message.ENCRYPTION_PGP, status);
457 } else if (axolotlEncrypted != null && Config.supportOmemo()) {
458 Jid origin;
459 if (conversationMultiMode) {
460 final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
461 origin = getTrueCounterpart(query != null ? mucUserElement : null, fallback);
462 if (origin == null) {
463 Log.d(Config.LOGTAG, "axolotl message in non anonymous conference received");
464 return;
465 }
466 } else {
467 origin = from;
468 }
469 message = parseAxolotlChat(axolotlEncrypted, origin, conversation, status);
470 if (message == null) {
471 return;
472 }
473 if (conversationMultiMode) {
474 message.setTrueCounterpart(origin);
475 }
476 } else if (body == null && oobUrl != null) {
477 message = new Message(conversation, oobUrl, Message.ENCRYPTION_NONE, status);
478 message.setOob(true);
479 if (CryptoHelper.isPgpEncryptedUrl(oobUrl)) {
480 message.setEncryption(Message.ENCRYPTION_DECRYPTED);
481 }
482 } else {
483 message = new Message(conversation, body, Message.ENCRYPTION_NONE, status);
484 }
485
486 message.setCounterpart(counterpart);
487 message.setRemoteMsgId(remoteMsgId);
488 message.setServerMsgId(serverMsgId);
489 message.setCarbon(isCarbon);
490 message.setTime(timestamp);
491 if (body != null && body.equals(oobUrl)) {
492 message.setOob(true);
493 if (CryptoHelper.isPgpEncryptedUrl(oobUrl)) {
494 message.setEncryption(Message.ENCRYPTION_DECRYPTED);
495 }
496 }
497 message.markable = packet.hasChild("markable", "urn:xmpp:chat-markers:0");
498 if (conversationMultiMode) {
499 final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
500 Jid trueCounterpart;
501 if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL) {
502 trueCounterpart = message.getTrueCounterpart();
503 } else if (Config.PARSE_REAL_JID_FROM_MUC_MAM) {
504 trueCounterpart = getTrueCounterpart(query != null ? mucUserElement : null, fallback);
505 } else {
506 trueCounterpart = fallback;
507 }
508 if (trueCounterpart != null && trueCounterpart.toBareJid().equals(account.getJid().toBareJid())) {
509 status = isTypeGroupChat ? Message.STATUS_SEND_RECEIVED : Message.STATUS_SEND;
510 }
511 message.setStatus(status);
512 message.setTrueCounterpart(trueCounterpart);
513 if (!isTypeGroupChat) {
514 message.setType(Message.TYPE_PRIVATE);
515 }
516 } else {
517 updateLastseen(account, from);
518 }
519
520 if (replacementId != null && mXmppConnectionService.allowMessageCorrection()) {
521 Message replacedMessage = conversation.findMessageWithRemoteIdAndCounterpart(replacementId,
522 counterpart,
523 message.getStatus() == Message.STATUS_RECEIVED,
524 message.isCarbon());
525 if (replacedMessage != null) {
526 final boolean fingerprintsMatch = replacedMessage.getFingerprint() == null
527 || replacedMessage.getFingerprint().equals(message.getFingerprint());
528 final boolean trueCountersMatch = replacedMessage.getTrueCounterpart() != null
529 && replacedMessage.getTrueCounterpart().equals(message.getTrueCounterpart());
530 final boolean duplicate = conversation.hasDuplicateMessage(message);
531 if (fingerprintsMatch && (trueCountersMatch || !conversationMultiMode) && !duplicate) {
532 Log.d(Config.LOGTAG, "replaced message '" + replacedMessage.getBody() + "' with '" + message.getBody() + "'");
533 synchronized (replacedMessage) {
534 final String uuid = replacedMessage.getUuid();
535 replacedMessage.setUuid(UUID.randomUUID().toString());
536 replacedMessage.setBody(message.getBody());
537 replacedMessage.setEdited(replacedMessage.getRemoteMsgId());
538 replacedMessage.setRemoteMsgId(remoteMsgId);
539 replacedMessage.setEncryption(message.getEncryption());
540 if (replacedMessage.getStatus() == Message.STATUS_RECEIVED) {
541 replacedMessage.markUnread();
542 }
543 mXmppConnectionService.updateMessage(replacedMessage, uuid);
544 mXmppConnectionService.getNotificationService().updateNotification(false);
545 if (mXmppConnectionService.confirmMessages()
546 && (replacedMessage.trusted() || replacedMessage.getType() == Message.TYPE_PRIVATE)
547 && remoteMsgId != null
548 && !isForwarded
549 && !isTypeGroupChat) {
550 sendMessageReceipts(account, packet);
551 }
552 if (replacedMessage.getEncryption() == Message.ENCRYPTION_PGP) {
553 conversation.getAccount().getPgpDecryptionService().discard(replacedMessage);
554 conversation.getAccount().getPgpDecryptionService().decrypt(replacedMessage, false);
555 }
556 }
557 return;
558 } else {
559 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": received message correction but verification didn't check out");
560 }
561 }
562 }
563
564 long deletionDate = mXmppConnectionService.getAutomaticMessageDeletionDate();
565 if (deletionDate != 0 && message.getTimeSent() < deletionDate) {
566 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": skipping message from "+message.getCounterpart().toString()+" because it was sent prior to our deletion date");
567 return;
568 }
569
570 boolean checkForDuplicates = (isTypeGroupChat && packet.hasChild("delay","urn:xmpp:delay"))
571 || message.getType() == Message.TYPE_PRIVATE
572 || message.getServerMsgId() != null;
573 if (checkForDuplicates && conversation.hasDuplicateMessage(message)) {
574 Log.d(Config.LOGTAG,"skipping duplicate message from "+message.getCounterpart().toString()+" "+message.getBody());
575 return;
576 }
577
578 if (query != null && query.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
579 conversation.prepend(message);
580 } else {
581 conversation.add(message);
582 }
583 if (query != null) {
584 query.incrementActualMessageCount();
585 }
586
587 if (query == null || query.isCatchup()) { //either no mam or catchup
588 if (status == Message.STATUS_SEND || status == Message.STATUS_SEND_RECEIVED) {
589 mXmppConnectionService.markRead(conversation);
590 if (query == null) {
591 activateGracePeriod(account);
592 }
593 } else {
594 message.markUnread();
595 notify = true;
596 }
597 }
598
599 if (message.getEncryption() == Message.ENCRYPTION_PGP) {
600 notify = conversation.getAccount().getPgpDecryptionService().decrypt(message, notify);
601 }
602
603 if (query == null) {
604 mXmppConnectionService.updateConversationUi();
605 }
606
607 if (mXmppConnectionService.confirmMessages()
608 && (message.trusted() || message.getType() == Message.TYPE_PRIVATE)
609 && remoteMsgId != null
610 && !isForwarded
611 && !isTypeGroupChat) {
612 sendMessageReceipts(account, packet);
613 }
614
615 if (message.getStatus() == Message.STATUS_RECEIVED
616 && conversation.getOtrSession() != null
617 && !conversation.getOtrSession().getSessionID().getUserID()
618 .equals(message.getCounterpart().getResourcepart())) {
619 conversation.endOtrIfNeeded();
620 }
621
622 mXmppConnectionService.databaseBackend.createMessage(message);
623 final HttpConnectionManager manager = this.mXmppConnectionService.getHttpConnectionManager();
624 if (message.trusted() && message.treatAsDownloadable() && manager.getAutoAcceptFileSize() > 0) {
625 manager.createNewDownloadConnection(message);
626 } else if (notify) {
627 if (query != null && query.isCatchup()) {
628 mXmppConnectionService.getNotificationService().pushFromBacklog(message);
629 } else {
630 mXmppConnectionService.getNotificationService().push(message);
631 }
632 }
633 } else if (!packet.hasChild("body")){ //no body
634 final Conversation conversation = mXmppConnectionService.find(account, from.toBareJid());
635 if (isTypeGroupChat) {
636 if (packet.hasChild("subject")) {
637 if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
638 conversation.setHasMessagesLeftOnServer(conversation.countMessages() > 0);
639 String subject = packet.findChildContent("subject");
640 conversation.getMucOptions().setSubject(subject);
641 final Bookmark bookmark = conversation.getBookmark();
642 if (bookmark != null && bookmark.getBookmarkName() == null) {
643 if (bookmark.setBookmarkName(subject)) {
644 mXmppConnectionService.pushBookmarks(account);
645 }
646 }
647 mXmppConnectionService.updateConversationUi();
648 return;
649 }
650 }
651 }
652 if (conversation != null && mucUserElement != null && from.isBareJid()) {
653 for (Element child : mucUserElement.getChildren()) {
654 if ("status".equals(child.getName())) {
655 try {
656 int code = Integer.parseInt(child.getAttribute("code"));
657 if ((code >= 170 && code <= 174) || (code >= 102 && code <= 104)) {
658 mXmppConnectionService.fetchConferenceConfiguration(conversation);
659 break;
660 }
661 } catch (Exception e) {
662 //ignored
663 }
664 } else if ("item".equals(child.getName())) {
665 MucOptions.User user = AbstractParser.parseItem(conversation,child);
666 Log.d(Config.LOGTAG,account.getJid()+": changing affiliation for "
667 +user.getRealJid()+" to "+user.getAffiliation()+" in "
668 +conversation.getJid().toBareJid());
669 if (!user.realJidMatchesAccount()) {
670 boolean isNew =conversation.getMucOptions().updateUser(user);
671 mXmppConnectionService.getAvatarService().clear(conversation);
672 mXmppConnectionService.updateMucRosterUi();
673 mXmppConnectionService.updateConversationUi();
674 if (!user.getAffiliation().ranks(MucOptions.Affiliation.MEMBER)) {
675 Jid jid = user.getRealJid();
676 List<Jid> cryptoTargets = conversation.getAcceptedCryptoTargets();
677 if (cryptoTargets.remove(user.getRealJid())) {
678 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": removed "+jid+" from crypto targets of "+conversation.getName());
679 conversation.setAcceptedCryptoTargets(cryptoTargets);
680 mXmppConnectionService.updateConversation(conversation);
681 }
682 } else if (isNew && user.getRealJid() != null && account.getAxolotlService().hasEmptyDeviceList(user.getRealJid())) {
683 account.getAxolotlService().fetchDeviceIds(user.getRealJid());
684 }
685 }
686 }
687 }
688 }
689 }
690
691
692
693 Element received = packet.findChild("received", "urn:xmpp:chat-markers:0");
694 if (received == null) {
695 received = packet.findChild("received", "urn:xmpp:receipts");
696 }
697 if (received != null && !packet.fromAccount(account)) {
698 mXmppConnectionService.markMessage(account, from.toBareJid(), received.getAttribute("id"), Message.STATUS_SEND_RECEIVED);
699 }
700 Element displayed = packet.findChild("displayed", "urn:xmpp:chat-markers:0");
701 if (displayed != null) {
702 if (packet.fromAccount(account)) {
703 Conversation conversation = mXmppConnectionService.find(account,counterpart.toBareJid());
704 if (conversation != null && (query == null || query.isCatchup())) {
705 mXmppConnectionService.markRead(conversation);
706 }
707 } else {
708 final Message displayedMessage = mXmppConnectionService.markMessage(account, from.toBareJid(), displayed.getAttribute("id"), Message.STATUS_SEND_DISPLAYED);
709 Message message = displayedMessage == null ? null : displayedMessage.prev();
710 while (message != null
711 && message.getStatus() == Message.STATUS_SEND_RECEIVED
712 && message.getTimeSent() < displayedMessage.getTimeSent()) {
713 mXmppConnectionService.markMessage(message, Message.STATUS_SEND_DISPLAYED);
714 message = message.prev();
715 }
716 }
717 }
718
719 Element event = original.findChild("event", "http://jabber.org/protocol/pubsub#event");
720 if (event != null) {
721 parseEvent(event, original.getFrom(), account);
722 }
723
724 String nick = packet.findChildContent("nick", "http://jabber.org/protocol/nick");
725 if (nick != null) {
726 Contact contact = account.getRoster().getContact(from);
727 contact.setPresenceName(nick);
728 }
729 }
730
731 private static Jid getTrueCounterpart(Element mucUserElement, Jid fallback) {
732 final Element item = mucUserElement == null ? null : mucUserElement.findChild("item");
733 Jid result = item == null ? null : item.getAttributeAsJid("jid");
734 return result != null ? result : fallback;
735 }
736
737 private void sendMessageReceipts(Account account, MessagePacket packet) {
738 ArrayList<String> receiptsNamespaces = new ArrayList<>();
739 if (packet.hasChild("markable", "urn:xmpp:chat-markers:0")) {
740 receiptsNamespaces.add("urn:xmpp:chat-markers:0");
741 }
742 if (packet.hasChild("request", "urn:xmpp:receipts")) {
743 receiptsNamespaces.add("urn:xmpp:receipts");
744 }
745 if (receiptsNamespaces.size() > 0) {
746 MessagePacket receipt = mXmppConnectionService.getMessageGenerator().received(account,
747 packet,
748 receiptsNamespaces,
749 packet.getType());
750 mXmppConnectionService.sendMessagePacket(account, receipt);
751 }
752 }
753
754 private static final SimpleDateFormat TIME_FORMAT = new SimpleDateFormat("HH:mm:ss", Locale.ENGLISH);
755
756 private void activateGracePeriod(Account account) {
757 long duration = mXmppConnectionService.getLongPreference("grace_period_length",R.integer.grace_period) * 1000;
758 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": activating grace period till "+TIME_FORMAT.format(new Date(System.currentTimeMillis() + duration)));
759 account.activateGracePeriod(duration);
760 }
761}