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.ReadByMarker;
33import eu.siacs.conversations.entities.ServiceDiscoveryResult;
34import eu.siacs.conversations.http.HttpConnectionManager;
35import eu.siacs.conversations.services.MessageArchiveService;
36import eu.siacs.conversations.services.XmppConnectionService;
37import eu.siacs.conversations.utils.CryptoHelper;
38import eu.siacs.conversations.xml.Namespace;
39import eu.siacs.conversations.xml.Element;
40import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
41import eu.siacs.conversations.xmpp.chatstate.ChatState;
42import eu.siacs.conversations.xmpp.jid.Jid;
43import eu.siacs.conversations.xmpp.pep.Avatar;
44import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
45
46public class MessageParser extends AbstractParser implements OnMessagePacketReceived {
47
48 private static final List<String> CLIENTS_SENDING_HTML_IN_OTR = Arrays.asList("Pidgin", "Adium", "Trillian");
49
50 public MessageParser(XmppConnectionService service) {
51 super(service);
52 }
53
54 private boolean extractChatState(Conversation c, final boolean isTypeGroupChat, final MessagePacket packet) {
55 ChatState state = ChatState.parse(packet);
56 if (state != null && c != null) {
57 final Account account = c.getAccount();
58 Jid from = packet.getFrom();
59 if (from.toBareJid().equals(account.getJid().toBareJid())) {
60 c.setOutgoingChatState(state);
61 if (state == ChatState.ACTIVE || state == ChatState.COMPOSING) {
62 mXmppConnectionService.markRead(c);
63 activateGracePeriod(account);
64 }
65 return false;
66 } else {
67 if (isTypeGroupChat) {
68 MucOptions.User user = c.getMucOptions().findUserByFullJid(from);
69 if (user != null) {
70 return user.setChatState(state);
71 } else {
72 return false;
73 }
74 } else {
75 return c.setIncomingChatState(state);
76 }
77 }
78 }
79 return false;
80 }
81
82 private Message parseOtrChat(String body, Jid from, String id, Conversation conversation) {
83 String presence;
84 if (from.isBareJid()) {
85 presence = "";
86 } else {
87 presence = from.getResourcepart();
88 }
89 if (body.matches("^\\?OTRv\\d{1,2}\\?.*")) {
90 conversation.endOtrIfNeeded();
91 }
92 if (!conversation.hasValidOtrSession()) {
93 conversation.startOtrSession(presence, false);
94 } else {
95 String foreignPresence = conversation.getOtrSession().getSessionID().getUserID();
96 if (!foreignPresence.equals(presence)) {
97 conversation.endOtrIfNeeded();
98 conversation.startOtrSession(presence, false);
99 }
100 }
101 try {
102 conversation.setLastReceivedOtrMessageId(id);
103 Session otrSession = conversation.getOtrSession();
104 body = otrSession.transformReceiving(body);
105 SessionStatus status = otrSession.getSessionStatus();
106 if (body == null && status == SessionStatus.ENCRYPTED) {
107 mXmppConnectionService.onOtrSessionEstablished(conversation);
108 return null;
109 } else if (body == null && status == SessionStatus.FINISHED) {
110 conversation.resetOtrSession();
111 mXmppConnectionService.updateConversationUi();
112 return null;
113 } else if (body == null || (body.isEmpty())) {
114 return null;
115 }
116 if (body.startsWith(CryptoHelper.FILETRANSFER)) {
117 String key = body.substring(CryptoHelper.FILETRANSFER.length());
118 conversation.setSymmetricKey(CryptoHelper.hexToBytes(key));
119 return null;
120 }
121 if (clientMightSendHtml(conversation.getAccount(), from)) {
122 Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": received OTR message from bad behaving client. escaping HTML…");
123 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
124 body = Html.fromHtml(body, Html.FROM_HTML_MODE_LEGACY).toString();
125 } else {
126 body = Html.fromHtml(body).toString();
127 }
128 }
129
130 final OtrService otrService = conversation.getAccount().getOtrService();
131 Message finishedMessage = new Message(conversation, body, Message.ENCRYPTION_OTR, Message.STATUS_RECEIVED);
132 finishedMessage.setFingerprint(otrService.getFingerprint(otrSession.getRemotePublicKey()));
133 conversation.setLastReceivedOtrMessageId(null);
134
135 return finishedMessage;
136 } catch (Exception e) {
137 conversation.resetOtrSession();
138 return null;
139 }
140 }
141
142 private static boolean clientMightSendHtml(Account account, Jid from) {
143 String resource = from.getResourcepart();
144 if (resource == null) {
145 return false;
146 }
147 Presence presence = account.getRoster().getContact(from).getPresences().getPresences().get(resource);
148 ServiceDiscoveryResult disco = presence == null ? null : presence.getServiceDiscoveryResult();
149 if (disco == null) {
150 return false;
151 }
152 return hasIdentityKnowForSendingHtml(disco.getIdentities());
153 }
154
155 private static boolean hasIdentityKnowForSendingHtml(List<ServiceDiscoveryResult.Identity> identities) {
156 for (ServiceDiscoveryResult.Identity identity : identities) {
157 if (identity.getName() != null) {
158 if (CLIENTS_SENDING_HTML_IN_OTR.contains(identity.getName())) {
159 return true;
160 }
161 }
162 }
163 return false;
164 }
165
166 private Message parseAxolotlChat(Element axolotlMessage, Jid from, Conversation conversation, int status) {
167 AxolotlService service = conversation.getAccount().getAxolotlService();
168 XmppAxolotlMessage xmppAxolotlMessage;
169 try {
170 xmppAxolotlMessage = XmppAxolotlMessage.fromElement(axolotlMessage, from.toBareJid());
171 } catch (Exception e) {
172 Log.d(Config.LOGTAG, conversation.getAccount().getJid().toBareJid() + ": invalid omemo message received " + e.getMessage());
173 return null;
174 }
175 XmppAxolotlMessage.XmppAxolotlPlaintextMessage plaintextMessage = service.processReceivingPayloadMessage(xmppAxolotlMessage);
176 if (plaintextMessage != null) {
177 Message finishedMessage = new Message(conversation, plaintextMessage.getPlaintext(), Message.ENCRYPTION_AXOLOTL, status);
178 finishedMessage.setFingerprint(plaintextMessage.getFingerprint());
179 Log.d(Config.LOGTAG, AxolotlService.getLogprefix(finishedMessage.getConversation().getAccount()) + " Received Message with session fingerprint: " + plaintextMessage.getFingerprint());
180 return finishedMessage;
181 } else {
182 return null;
183 }
184 }
185
186 private class Invite {
187 final Jid jid;
188 final String password;
189 final Contact inviter;
190
191 Invite(Jid jid, String password, Contact inviter) {
192 this.jid = jid;
193 this.password = password;
194 this.inviter = inviter;
195 }
196
197 public boolean execute(Account account) {
198 if (jid != null) {
199 Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, jid, true, false);
200 if (!conversation.getMucOptions().online()) {
201 conversation.getMucOptions().setPassword(password);
202 mXmppConnectionService.databaseBackend.updateConversation(conversation);
203 mXmppConnectionService.joinMuc(conversation, inviter != null && inviter.mutualPresenceSubscription());
204 mXmppConnectionService.updateConversationUi();
205 }
206 return true;
207 }
208 return false;
209 }
210 }
211
212 private Invite extractInvite(Account account, Element message) {
213 Element x = message.findChild("x", "http://jabber.org/protocol/muc#user");
214 if (x != null) {
215 Element invite = x.findChild("invite");
216 if (invite != null) {
217 Element pw = x.findChild("password");
218 Jid from = invite.getAttributeAsJid("from");
219 Contact contact = from == null ? null : account.getRoster().getContact(from);
220 return new Invite(message.getAttributeAsJid("from"), pw != null ? pw.getContent() : null, contact);
221 }
222 } else {
223 x = message.findChild("x", "jabber:x:conference");
224 if (x != null) {
225 Jid from = message.getAttributeAsJid("from");
226 Contact contact = from == null ? null : account.getRoster().getContact(from);
227 return new Invite(x.getAttributeAsJid("jid"), x.getAttribute("password"), contact);
228 }
229 }
230 return null;
231 }
232
233 private static String extractStanzaId(Element packet, boolean isTypeGroupChat, Conversation conversation) {
234 final Jid by;
235 final boolean safeToExtract;
236 if (isTypeGroupChat) {
237 by = conversation.getJid().toBareJid();
238 safeToExtract = conversation.getMucOptions().hasFeature(Namespace.STANZA_IDS);
239 } else {
240 Account account = conversation.getAccount();
241 by = account.getJid().toBareJid();
242 safeToExtract = account.getXmppConnection().getFeatures().stanzaIds();
243 }
244 return safeToExtract ? extractStanzaId(packet, by) : null;
245 }
246
247 private static String extractStanzaId(Element packet, Jid by) {
248 for (Element child : packet.getChildren()) {
249 if (child.getName().equals("stanza-id")
250 && Namespace.STANZA_IDS.equals(child.getNamespace())
251 && by.equals(child.getAttributeAsJid("by"))) {
252 return child.getAttribute("id");
253 }
254 }
255 return null;
256 }
257
258 private void parseEvent(final Element event, final Jid from, final Account account) {
259 Element items = event.findChild("items");
260 String node = items == null ? null : items.getAttribute("node");
261 if ("urn:xmpp:avatar:metadata".equals(node)) {
262 Avatar avatar = Avatar.parseMetadata(items);
263 if (avatar != null) {
264 avatar.owner = from.toBareJid();
265 if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
266 if (account.getJid().toBareJid().equals(from)) {
267 if (account.setAvatar(avatar.getFilename())) {
268 mXmppConnectionService.databaseBackend.updateAccount(account);
269 }
270 mXmppConnectionService.getAvatarService().clear(account);
271 mXmppConnectionService.updateConversationUi();
272 mXmppConnectionService.updateAccountUi();
273 } else {
274 Contact contact = account.getRoster().getContact(from);
275 contact.setAvatar(avatar);
276 mXmppConnectionService.getAvatarService().clear(contact);
277 mXmppConnectionService.updateConversationUi();
278 mXmppConnectionService.updateRosterUi();
279 }
280 } else if (mXmppConnectionService.isDataSaverDisabled()) {
281 mXmppConnectionService.fetchAvatar(account, avatar);
282 }
283 }
284 } else if ("http://jabber.org/protocol/nick".equals(node)) {
285 final Element i = items.findChild("item");
286 final String nick = i == null ? null : i.findChildContent("nick", Namespace.NICK);
287 if (nick != null) {
288 Contact contact = account.getRoster().getContact(from);
289 if (contact.setPresenceName(nick)) {
290 mXmppConnectionService.getAvatarService().clear(contact);
291 }
292 mXmppConnectionService.updateConversationUi();
293 mXmppConnectionService.updateAccountUi();
294 }
295 } else if (AxolotlService.PEP_DEVICE_LIST.equals(node)) {
296 Element item = items.findChild("item");
297 Set<Integer> deviceIds = mXmppConnectionService.getIqParser().deviceIds(item);
298 Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Received PEP device list " + deviceIds + " update from " + from + ", processing... ");
299 AxolotlService axolotlService = account.getAxolotlService();
300 axolotlService.registerDevices(from, deviceIds);
301 mXmppConnectionService.updateAccountUi();
302 }
303 }
304
305 private boolean handleErrorMessage(Account account, MessagePacket packet) {
306 if (packet.getType() == MessagePacket.TYPE_ERROR) {
307 Jid from = packet.getFrom();
308 if (from != null) {
309 Message message = mXmppConnectionService.markMessage(account,
310 from.toBareJid(),
311 packet.getId(),
312 Message.STATUS_SEND_FAILED,
313 extractErrorMessage(packet));
314 if (message != null) {
315 if (message.getEncryption() == Message.ENCRYPTION_OTR) {
316 message.getConversation().endOtrIfNeeded();
317 }
318 }
319 }
320 return true;
321 }
322 return false;
323 }
324
325 @Override
326 public void onMessagePacketReceived(Account account, MessagePacket original) {
327 if (handleErrorMessage(account, original)) {
328 return;
329 }
330 final MessagePacket packet;
331 Long timestamp = null;
332 final boolean isForwarded;
333 boolean isCarbon = false;
334 String serverMsgId = null;
335 final Element fin = original.findChild("fin", Namespace.MAM_LEGACY);
336 if (fin != null) {
337 mXmppConnectionService.getMessageArchiveService().processFinLegacy(fin, original.getFrom());
338 return;
339 }
340 final boolean mamLegacy = original.hasChild("result", Namespace.MAM_LEGACY);
341 final Element result = original.findChild("result", mamLegacy ? Namespace.MAM_LEGACY : Namespace.MAM);
342 final MessageArchiveService.Query query = result == null ? null : mXmppConnectionService.getMessageArchiveService().findQuery(result.getAttribute("queryid"));
343 if (query != null && query.validFrom(original.getFrom())) {
344 Pair<MessagePacket, Long> f = original.getForwardedMessagePacket("result", mamLegacy ? Namespace.MAM_LEGACY : Namespace.MAM);
345 if (f == null) {
346 return;
347 }
348 timestamp = f.second;
349 packet = f.first;
350 isForwarded = true;
351 serverMsgId = result.getAttribute("id");
352 query.incrementMessageCount();
353 } else if (query != null) {
354 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": received mam result from invalid sender");
355 return;
356 } else if (original.fromServer(account)) {
357 Pair<MessagePacket, Long> f;
358 f = original.getForwardedMessagePacket("received", "urn:xmpp:carbons:2");
359 f = f == null ? original.getForwardedMessagePacket("sent", "urn:xmpp:carbons:2") : f;
360 packet = f != null ? f.first : original;
361 if (handleErrorMessage(account, packet)) {
362 return;
363 }
364 timestamp = f != null ? f.second : null;
365 isCarbon = f != null;
366 isForwarded = isCarbon;
367 } else {
368 packet = original;
369 isForwarded = false;
370 }
371
372 if (timestamp == null) {
373 timestamp = AbstractParser.parseTimestamp(original, AbstractParser.parseTimestamp(packet));
374 }
375 final String body = packet.getBody();
376 final Element mucUserElement = packet.findChild("x", "http://jabber.org/protocol/muc#user");
377 final String pgpEncrypted = packet.findChildContent("x", "jabber:x:encrypted");
378 final Element replaceElement = packet.findChild("replace", "urn:xmpp:message-correct:0");
379 final Element oob = packet.findChild("x", Namespace.OOB);
380 final String oobUrl = oob != null ? oob.findChildContent("url") : null;
381 final String replacementId = replaceElement == null ? null : replaceElement.getAttribute("id");
382 final Element axolotlEncrypted = packet.findChild(XmppAxolotlMessage.CONTAINERTAG, AxolotlService.PEP_PREFIX);
383 int status;
384 final Jid counterpart;
385 final Jid to = packet.getTo();
386 final Jid from = packet.getFrom();
387 final Element originId = packet.findChild("origin-id", Namespace.STANZA_IDS);
388 final String remoteMsgId;
389 if (originId != null && originId.getAttribute("id") != null) {
390 remoteMsgId = originId.getAttribute("id");
391 } else {
392 remoteMsgId = packet.getId();
393 }
394 boolean notify = false;
395
396 if (from == null) {
397 Log.d(Config.LOGTAG, "no from in: " + packet.toString());
398 return;
399 }
400
401 boolean isTypeGroupChat = packet.getType() == MessagePacket.TYPE_GROUPCHAT;
402 if (query != null && !query.muc() && isTypeGroupChat) {
403 Log.e(Config.LOGTAG,account.getJid().toBareJid()+": received groupchat ("+from+") message on regular MAM request. skipping");
404 return;
405 }
406 boolean isProperlyAddressed = (to != null) && (!to.isBareJid() || account.countPresences() == 0);
407 boolean isMucStatusMessage = from.isBareJid() && mucUserElement != null && mucUserElement.hasChild("status");
408 if (packet.fromAccount(account)) {
409 status = Message.STATUS_SEND;
410 counterpart = to != null ? to : account.getJid();
411 } else {
412 status = Message.STATUS_RECEIVED;
413 counterpart = from;
414 }
415
416 Invite invite = extractInvite(account, packet);
417 if (invite != null && invite.execute(account)) {
418 return;
419 }
420
421 if ((body != null || pgpEncrypted != null || axolotlEncrypted != null || oobUrl != null) && !isMucStatusMessage) {
422 final Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, counterpart.toBareJid(), isTypeGroupChat, false, query, false);
423 final boolean conversationMultiMode = conversation.getMode() == Conversation.MODE_MULTI;
424
425 if (serverMsgId == null) {
426 serverMsgId = extractStanzaId(packet, isTypeGroupChat, conversation);
427 }
428
429 if (isTypeGroupChat) {
430 if (conversation.getMucOptions().isSelf(counterpart)) {
431 status = Message.STATUS_SEND_RECEIVED;
432 isCarbon = true; //not really carbon but received from another resource
433 if (mXmppConnectionService.markMessage(conversation, remoteMsgId, status, serverMsgId)) {
434 return;
435 } else if (remoteMsgId == null || Config.IGNORE_ID_REWRITE_IN_MUC) {
436 Message message = conversation.findSentMessageWithBody(packet.getBody());
437 if (message != null) {
438 mXmppConnectionService.markMessage(message, status);
439 return;
440 }
441 }
442 } else {
443 status = Message.STATUS_RECEIVED;
444 }
445 }
446 final Message message;
447 if (body != null && body.startsWith("?OTR") && Config.supportOtr()) {
448 if (!isForwarded && !isTypeGroupChat && isProperlyAddressed && !conversationMultiMode) {
449 message = parseOtrChat(body, from, remoteMsgId, conversation);
450 if (message == null) {
451 return;
452 }
453 } else {
454 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ignoring OTR message from " + from + " isForwarded=" + Boolean.toString(isForwarded) + ", isProperlyAddressed=" + Boolean.valueOf(isProperlyAddressed));
455 message = new Message(conversation, body, Message.ENCRYPTION_NONE, status);
456 }
457 } else if (pgpEncrypted != null && Config.supportOpenPgp()) {
458 message = new Message(conversation, pgpEncrypted, Message.ENCRYPTION_PGP, status);
459 } else if (axolotlEncrypted != null && Config.supportOmemo()) {
460 Jid origin;
461 if (conversationMultiMode) {
462 final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
463 origin = getTrueCounterpart(query != null ? mucUserElement : null, fallback);
464 if (origin == null) {
465 Log.d(Config.LOGTAG, "axolotl message in non anonymous conference received");
466 return;
467 }
468 } else {
469 origin = from;
470 }
471 message = parseAxolotlChat(axolotlEncrypted, origin, conversation, status);
472 if (message == null) {
473 if (query == null && extractChatState(mXmppConnectionService.find(account, counterpart.toBareJid()), isTypeGroupChat, packet)) {
474 mXmppConnectionService.updateConversationUi();
475 }
476 if (query != null && status == Message.STATUS_SEND && remoteMsgId != null) {
477 Message previouslySent = conversation.findSentMessageWithUuid(remoteMsgId);
478 if (previouslySent != null && previouslySent.getServerMsgId() == null && serverMsgId != null) {
479 previouslySent.setServerMsgId(serverMsgId);
480 mXmppConnectionService.databaseBackend.updateMessage(previouslySent);
481 Log.d(Config.LOGTAG,account.getJid().toBareJid()+": encountered previously sent OMEMO message without serverId. updating...");
482 }
483 }
484 return;
485 }
486 if (conversationMultiMode) {
487 message.setTrueCounterpart(origin);
488 }
489 } else if (body == null && oobUrl != null) {
490 message = new Message(conversation, oobUrl, Message.ENCRYPTION_NONE, status);
491 message.setOob(true);
492 if (CryptoHelper.isPgpEncryptedUrl(oobUrl)) {
493 message.setEncryption(Message.ENCRYPTION_DECRYPTED);
494 }
495 } else {
496 message = new Message(conversation, body, Message.ENCRYPTION_NONE, status);
497 }
498
499 message.setCounterpart(counterpart);
500 message.setRemoteMsgId(remoteMsgId);
501 message.setServerMsgId(serverMsgId);
502 message.setCarbon(isCarbon);
503 message.setTime(timestamp);
504 if (body != null && body.equals(oobUrl)) {
505 message.setOob(true);
506 if (CryptoHelper.isPgpEncryptedUrl(oobUrl)) {
507 message.setEncryption(Message.ENCRYPTION_DECRYPTED);
508 }
509 }
510 message.markable = packet.hasChild("markable", "urn:xmpp:chat-markers:0");
511 if (conversationMultiMode) {
512 final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
513 Jid trueCounterpart;
514 if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL) {
515 trueCounterpart = message.getTrueCounterpart();
516 } else if (query != null && query.safeToExtractTrueCounterpart()) {
517 trueCounterpart = getTrueCounterpart(mucUserElement, fallback);
518 } else {
519 trueCounterpart = fallback;
520 }
521 if (trueCounterpart != null && trueCounterpart.toBareJid().equals(account.getJid().toBareJid())) {
522 status = isTypeGroupChat ? Message.STATUS_SEND_RECEIVED : Message.STATUS_SEND;
523 }
524 message.setStatus(status);
525 message.setTrueCounterpart(trueCounterpart);
526 if (!isTypeGroupChat) {
527 message.setType(Message.TYPE_PRIVATE);
528 }
529 } else {
530 updateLastseen(account, from);
531 }
532
533 if (replacementId != null && mXmppConnectionService.allowMessageCorrection()) {
534 Message replacedMessage = conversation.findMessageWithRemoteIdAndCounterpart(replacementId,
535 counterpart,
536 message.getStatus() == Message.STATUS_RECEIVED,
537 message.isCarbon());
538 if (replacedMessage != null) {
539 final boolean fingerprintsMatch = replacedMessage.getFingerprint() == null
540 || replacedMessage.getFingerprint().equals(message.getFingerprint());
541 final boolean trueCountersMatch = replacedMessage.getTrueCounterpart() != null
542 && replacedMessage.getTrueCounterpart().equals(message.getTrueCounterpart());
543 final boolean duplicate = conversation.hasDuplicateMessage(message);
544 if (fingerprintsMatch && (trueCountersMatch || !conversationMultiMode) && !duplicate) {
545 Log.d(Config.LOGTAG, "replaced message '" + replacedMessage.getBody() + "' with '" + message.getBody() + "'");
546 synchronized (replacedMessage) {
547 final String uuid = replacedMessage.getUuid();
548 replacedMessage.setUuid(UUID.randomUUID().toString());
549 replacedMessage.setBody(message.getBody());
550 replacedMessage.setEdited(replacedMessage.getRemoteMsgId());
551 replacedMessage.setRemoteMsgId(remoteMsgId);
552 replacedMessage.setEncryption(message.getEncryption());
553 if (replacedMessage.getStatus() == Message.STATUS_RECEIVED) {
554 replacedMessage.markUnread();
555 }
556 extractChatState(mXmppConnectionService.find(account, counterpart.toBareJid()), isTypeGroupChat, packet);
557 mXmppConnectionService.updateMessage(replacedMessage, uuid);
558 mXmppConnectionService.getNotificationService().updateNotification(false);
559 if (mXmppConnectionService.confirmMessages()
560 && (replacedMessage.trusted() || replacedMessage.getType() == Message.TYPE_PRIVATE)
561 && remoteMsgId != null
562 && !isForwarded
563 && !isTypeGroupChat) {
564 sendMessageReceipts(account, packet);
565 }
566 if (replacedMessage.getEncryption() == Message.ENCRYPTION_PGP) {
567 conversation.getAccount().getPgpDecryptionService().discard(replacedMessage);
568 conversation.getAccount().getPgpDecryptionService().decrypt(replacedMessage, false);
569 }
570 }
571 return;
572 } else {
573 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": received message correction but verification didn't check out");
574 }
575 }
576 }
577
578 long deletionDate = mXmppConnectionService.getAutomaticMessageDeletionDate();
579 if (deletionDate != 0 && message.getTimeSent() < deletionDate) {
580 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": skipping message from " + message.getCounterpart().toString() + " because it was sent prior to our deletion date");
581 return;
582 }
583
584 boolean checkForDuplicates = (isTypeGroupChat && packet.hasChild("delay", "urn:xmpp:delay"))
585 || message.getType() == Message.TYPE_PRIVATE
586 || message.getServerMsgId() != null;
587 if (checkForDuplicates ) {
588 final Message duplicate = conversation.findDuplicateMessage(message);
589 if (duplicate != null) {
590 final boolean serverMsgIdUpdated;
591 if (duplicate.getStatus() != Message.STATUS_RECEIVED
592 && duplicate.getUuid().equals(message.getRemoteMsgId())
593 && duplicate.getServerMsgId() == null
594 && message.getServerMsgId() != null) {
595 duplicate.setServerMsgId(message.getServerMsgId());
596 mXmppConnectionService.databaseBackend.updateMessage(message);
597 serverMsgIdUpdated = true;
598 } else {
599 serverMsgIdUpdated = false;
600 }
601 Log.d(Config.LOGTAG, "skipping duplicate message with " + message.getCounterpart()+". serverMsgIdUpdated="+Boolean.toString(serverMsgIdUpdated));
602 return;
603 }
604 }
605
606 if (query != null && query.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
607 conversation.prepend(message);
608 } else {
609 conversation.add(message);
610 }
611 if (query != null) {
612 query.incrementActualMessageCount();
613 }
614
615 if (query == null || query.isCatchup()) { //either no mam or catchup
616 if (status == Message.STATUS_SEND || status == Message.STATUS_SEND_RECEIVED) {
617 mXmppConnectionService.markRead(conversation);
618 if (query == null) {
619 activateGracePeriod(account);
620 }
621 } else {
622 message.markUnread();
623 notify = true;
624 }
625 }
626
627 if (message.getEncryption() == Message.ENCRYPTION_PGP) {
628 notify = conversation.getAccount().getPgpDecryptionService().decrypt(message, notify);
629 }
630
631 if (query == null) {
632 extractChatState(mXmppConnectionService.find(account, counterpart.toBareJid()), isTypeGroupChat, packet);
633 mXmppConnectionService.updateConversationUi();
634 }
635
636 if (mXmppConnectionService.confirmMessages()
637 && (message.trusted() || message.getType() == Message.TYPE_PRIVATE)
638 && remoteMsgId != null
639 && !isForwarded
640 && !isTypeGroupChat) {
641 sendMessageReceipts(account, packet);
642 }
643
644 if (message.getStatus() == Message.STATUS_RECEIVED
645 && conversation.getOtrSession() != null
646 && !conversation.getOtrSession().getSessionID().getUserID()
647 .equals(message.getCounterpart().getResourcepart())) {
648 conversation.endOtrIfNeeded();
649 }
650
651 mXmppConnectionService.databaseBackend.createMessage(message);
652 final HttpConnectionManager manager = this.mXmppConnectionService.getHttpConnectionManager();
653 if (message.trusted() && message.treatAsDownloadable() && manager.getAutoAcceptFileSize() > 0) {
654 manager.createNewDownloadConnection(message);
655 } else if (notify) {
656 if (query != null && query.isCatchup()) {
657 mXmppConnectionService.getNotificationService().pushFromBacklog(message);
658 } else {
659 mXmppConnectionService.getNotificationService().push(message);
660 }
661 }
662 } else if (!packet.hasChild("body")) { //no body
663
664 if (query == null && extractChatState(mXmppConnectionService.find(account, counterpart.toBareJid()), isTypeGroupChat, packet)) {
665 mXmppConnectionService.updateConversationUi();
666 }
667
668 final Conversation conversation = mXmppConnectionService.find(account, from.toBareJid());
669 if (isTypeGroupChat) {
670 if (packet.hasChild("subject")) {
671 if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
672 conversation.setHasMessagesLeftOnServer(conversation.countMessages() > 0);
673 String subject = packet.findChildContent("subject");
674 conversation.getMucOptions().setSubject(subject);
675 final Bookmark bookmark = conversation.getBookmark();
676 if (bookmark != null && bookmark.getBookmarkName() == null) {
677 if (bookmark.setBookmarkName(subject)) {
678 mXmppConnectionService.pushBookmarks(account);
679 }
680 }
681 mXmppConnectionService.updateConversationUi();
682 return;
683 }
684 }
685 }
686 if (conversation != null && mucUserElement != null && from.isBareJid()) {
687 for (Element child : mucUserElement.getChildren()) {
688 if ("status".equals(child.getName())) {
689 try {
690 int code = Integer.parseInt(child.getAttribute("code"));
691 if ((code >= 170 && code <= 174) || (code >= 102 && code <= 104)) {
692 mXmppConnectionService.fetchConferenceConfiguration(conversation);
693 break;
694 }
695 } catch (Exception e) {
696 //ignored
697 }
698 } else if ("item".equals(child.getName())) {
699 MucOptions.User user = AbstractParser.parseItem(conversation, child);
700 Log.d(Config.LOGTAG, account.getJid() + ": changing affiliation for "
701 + user.getRealJid() + " to " + user.getAffiliation() + " in "
702 + conversation.getJid().toBareJid());
703 if (!user.realJidMatchesAccount()) {
704 boolean isNew = conversation.getMucOptions().updateUser(user);
705 mXmppConnectionService.getAvatarService().clear(conversation);
706 mXmppConnectionService.updateMucRosterUi();
707 mXmppConnectionService.updateConversationUi();
708 if (!user.getAffiliation().ranks(MucOptions.Affiliation.MEMBER)) {
709 Jid jid = user.getRealJid();
710 List<Jid> cryptoTargets = conversation.getAcceptedCryptoTargets();
711 if (cryptoTargets.remove(user.getRealJid())) {
712 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": removed " + jid + " from crypto targets of " + conversation.getName());
713 conversation.setAcceptedCryptoTargets(cryptoTargets);
714 mXmppConnectionService.updateConversation(conversation);
715 }
716 } else if (isNew && user.getRealJid() != null && account.getAxolotlService().hasEmptyDeviceList(user.getRealJid())) {
717 account.getAxolotlService().fetchDeviceIds(user.getRealJid());
718 }
719 }
720 }
721 }
722 }
723 }
724
725 Element received = packet.findChild("received", "urn:xmpp:chat-markers:0");
726 if (received == null) {
727 received = packet.findChild("received", "urn:xmpp:receipts");
728 }
729 if (received != null && !packet.fromAccount(account)) {
730 mXmppConnectionService.markMessage(account, from.toBareJid(), received.getAttribute("id"), Message.STATUS_SEND_RECEIVED);
731 }
732 Element displayed = packet.findChild("displayed", "urn:xmpp:chat-markers:0");
733 if (displayed != null) {
734 final String id = displayed.getAttribute("id");
735 final Jid sender = displayed.getAttributeAsJid("sender");
736 if (packet.fromAccount(account)) {
737 Conversation conversation = mXmppConnectionService.find(account, counterpart.toBareJid());
738 if (conversation != null && (query == null || query.isCatchup())) {
739 mXmppConnectionService.markRead(conversation);
740 }
741 } else if (isTypeGroupChat) {
742 Conversation conversation = mXmppConnectionService.find(account, counterpart.toBareJid());
743 if (conversation != null && id != null && sender != null) {
744 Message message = conversation.findMessageWithRemoteId(id, sender);
745 if (message != null) {
746 if (conversation.getMucOptions().isSelf(counterpart)) {
747 if (!message.isRead() && (query == null || query.isCatchup())) { //checking if message is unread fixes race conditions with reflections
748 mXmppConnectionService.markRead(conversation);
749 }
750 } else {
751 final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
752 Jid trueJid = getTrueCounterpart((query != null && query.safeToExtractTrueCounterpart()) ? mucUserElement : null, fallback);
753 ReadByMarker readByMarker = ReadByMarker.from(counterpart, trueJid);
754 if (message.addReadByMarker(readByMarker)) {
755 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": added read by (" + readByMarker.getRealJid() + ") to message '" + message.getBody() + "'");
756 mXmppConnectionService.updateMessage(message);
757 }
758 }
759 }
760 }
761 } else {
762 final Message displayedMessage = mXmppConnectionService.markMessage(account, from.toBareJid(), id, Message.STATUS_SEND_DISPLAYED);
763 Message message = displayedMessage == null ? null : displayedMessage.prev();
764 while (message != null
765 && message.getStatus() == Message.STATUS_SEND_RECEIVED
766 && message.getTimeSent() < displayedMessage.getTimeSent()) {
767 mXmppConnectionService.markMessage(message, Message.STATUS_SEND_DISPLAYED);
768 message = message.prev();
769 }
770 }
771 }
772
773 Element event = original.findChild("event", "http://jabber.org/protocol/pubsub#event");
774 if (event != null) {
775 parseEvent(event, original.getFrom(), account);
776 }
777
778 final String nick = packet.findChildContent("nick", Namespace.NICK);
779 if (nick != null) {
780 Contact contact = account.getRoster().getContact(from);
781 if (contact.setPresenceName(nick)) {
782 mXmppConnectionService.getAvatarService().clear(contact);
783 }
784 }
785 }
786
787 private static Jid getTrueCounterpart(Element mucUserElement, Jid fallback) {
788 final Element item = mucUserElement == null ? null : mucUserElement.findChild("item");
789 Jid result = item == null ? null : item.getAttributeAsJid("jid");
790 return result != null ? result : fallback;
791 }
792
793 private void sendMessageReceipts(Account account, MessagePacket packet) {
794 ArrayList<String> receiptsNamespaces = new ArrayList<>();
795 if (packet.hasChild("markable", "urn:xmpp:chat-markers:0")) {
796 receiptsNamespaces.add("urn:xmpp:chat-markers:0");
797 }
798 if (packet.hasChild("request", "urn:xmpp:receipts")) {
799 receiptsNamespaces.add("urn:xmpp:receipts");
800 }
801 if (receiptsNamespaces.size() > 0) {
802 MessagePacket receipt = mXmppConnectionService.getMessageGenerator().received(account,
803 packet,
804 receiptsNamespaces,
805 packet.getType());
806 mXmppConnectionService.sendMessagePacket(account, receipt);
807 }
808 }
809
810 private static final SimpleDateFormat TIME_FORMAT = new SimpleDateFormat("HH:mm:ss", Locale.ENGLISH);
811
812 private void activateGracePeriod(Account account) {
813 long duration = mXmppConnectionService.getLongPreference("grace_period_length", R.integer.grace_period) * 1000;
814 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": activating grace period till " + TIME_FORMAT.format(new Date(System.currentTimeMillis() + duration)));
815 account.activateGracePeriod(duration);
816 }
817}