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
297 Element item = items.findChild("item");
298 Set<Integer> deviceIds = mXmppConnectionService.getIqParser().deviceIds(item);
299 Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Received PEP device list (" + deviceIds + ") update from " + from + ", processing...");
300 AxolotlService axolotlService = account.getAxolotlService();
301 axolotlService.registerDevices(from, deviceIds);
302 mXmppConnectionService.updateAccountUi();
303 }
304 }
305
306 private boolean handleErrorMessage(Account account, MessagePacket packet) {
307 if (packet.getType() == MessagePacket.TYPE_ERROR) {
308 Jid from = packet.getFrom();
309 if (from != null) {
310 Message message = mXmppConnectionService.markMessage(account,
311 from.toBareJid(),
312 packet.getId(),
313 Message.STATUS_SEND_FAILED,
314 extractErrorMessage(packet));
315 if (message != null) {
316 if (message.getEncryption() == Message.ENCRYPTION_OTR) {
317 message.getConversation().endOtrIfNeeded();
318 }
319 }
320 }
321 return true;
322 }
323 return false;
324 }
325
326 @Override
327 public void onMessagePacketReceived(Account account, MessagePacket original) {
328 if (handleErrorMessage(account, original)) {
329 return;
330 }
331 final MessagePacket packet;
332 Long timestamp = null;
333 final boolean isForwarded;
334 boolean isCarbon = false;
335 String serverMsgId = null;
336 final Element fin = original.findChild("fin", Namespace.MAM_LEGACY);
337 if (fin != null) {
338 mXmppConnectionService.getMessageArchiveService().processFinLegacy(fin, original.getFrom());
339 return;
340 }
341 final boolean mamLegacy = original.hasChild("result", Namespace.MAM_LEGACY);
342 final Element result = original.findChild("result", mamLegacy ? Namespace.MAM_LEGACY : Namespace.MAM);
343 final MessageArchiveService.Query query = result == null ? null : mXmppConnectionService.getMessageArchiveService().findQuery(result.getAttribute("queryid"));
344 if (query != null && query.validFrom(original.getFrom())) {
345 Pair<MessagePacket, Long> f = original.getForwardedMessagePacket("result", mamLegacy ? Namespace.MAM_LEGACY : Namespace.MAM);
346 if (f == null) {
347 return;
348 }
349 timestamp = f.second;
350 packet = f.first;
351 isForwarded = true;
352 serverMsgId = result.getAttribute("id");
353 query.incrementMessageCount();
354 } else if (query != null) {
355 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": received mam result from invalid sender");
356 return;
357 } else if (original.fromServer(account)) {
358 Pair<MessagePacket, Long> f;
359 f = original.getForwardedMessagePacket("received", "urn:xmpp:carbons:2");
360 f = f == null ? original.getForwardedMessagePacket("sent", "urn:xmpp:carbons:2") : f;
361 packet = f != null ? f.first : original;
362 if (handleErrorMessage(account, packet)) {
363 return;
364 }
365 timestamp = f != null ? f.second : null;
366 isCarbon = f != null;
367 isForwarded = isCarbon;
368 } else {
369 packet = original;
370 isForwarded = false;
371 }
372
373 if (timestamp == null) {
374 timestamp = AbstractParser.parseTimestamp(original, AbstractParser.parseTimestamp(packet));
375 }
376 final String body = packet.getBody();
377 final Element mucUserElement = packet.findChild("x", "http://jabber.org/protocol/muc#user");
378 final String pgpEncrypted = packet.findChildContent("x", "jabber:x:encrypted");
379 final Element replaceElement = packet.findChild("replace", "urn:xmpp:message-correct:0");
380 final Element oob = packet.findChild("x", Namespace.OOB);
381 final String oobUrl = oob != null ? oob.findChildContent("url") : null;
382 final String replacementId = replaceElement == null ? null : replaceElement.getAttribute("id");
383 final Element axolotlEncrypted = packet.findChild(XmppAxolotlMessage.CONTAINERTAG, AxolotlService.PEP_PREFIX);
384 int status;
385 final Jid counterpart;
386 final Jid to = packet.getTo();
387 final Jid from = packet.getFrom();
388 final Element originId = packet.findChild("origin-id", Namespace.STANZA_IDS);
389 final String remoteMsgId;
390 if (originId != null && originId.getAttribute("id") != null) {
391 remoteMsgId = originId.getAttribute("id");
392 } else {
393 remoteMsgId = packet.getId();
394 }
395 boolean notify = false;
396
397 if (from == null) {
398 Log.d(Config.LOGTAG, "no from in: " + packet.toString());
399 return;
400 }
401
402 boolean isTypeGroupChat = packet.getType() == MessagePacket.TYPE_GROUPCHAT;
403 boolean isProperlyAddressed = (to != null) && (!to.isBareJid() || account.countPresences() == 0);
404 boolean isMucStatusMessage = from.isBareJid() && mucUserElement != null && mucUserElement.hasChild("status");
405 if (packet.fromAccount(account)) {
406 status = Message.STATUS_SEND;
407 counterpart = to != null ? to : account.getJid();
408 } else {
409 status = Message.STATUS_RECEIVED;
410 counterpart = from;
411 }
412
413 Invite invite = extractInvite(account, packet);
414 if (invite != null && invite.execute(account)) {
415 return;
416 }
417
418 if ((body != null || pgpEncrypted != null || axolotlEncrypted != null || oobUrl != null) && !isMucStatusMessage) {
419 final Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, counterpart.toBareJid(), isTypeGroupChat, false, query, false);
420 final boolean conversationMultiMode = conversation.getMode() == Conversation.MODE_MULTI;
421
422 if (serverMsgId == null) {
423 serverMsgId = extractStanzaId(packet, isTypeGroupChat, conversation);
424 }
425
426 if (isTypeGroupChat) {
427 if (conversation.getMucOptions().isSelf(counterpart)) {
428 status = Message.STATUS_SEND_RECEIVED;
429 isCarbon = true; //not really carbon but received from another resource
430 if (mXmppConnectionService.markMessage(conversation, remoteMsgId, status, serverMsgId)) {
431 return;
432 } else if (remoteMsgId == null || Config.IGNORE_ID_REWRITE_IN_MUC) {
433 Message message = conversation.findSentMessageWithBody(packet.getBody());
434 if (message != null) {
435 mXmppConnectionService.markMessage(message, status);
436 return;
437 }
438 }
439 } else {
440 status = Message.STATUS_RECEIVED;
441 }
442 }
443 final Message message;
444 if (body != null && body.startsWith("?OTR") && Config.supportOtr()) {
445 if (!isForwarded && !isTypeGroupChat && isProperlyAddressed && !conversationMultiMode) {
446 message = parseOtrChat(body, from, remoteMsgId, conversation);
447 if (message == null) {
448 return;
449 }
450 } else {
451 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": ignoring OTR message from " + from + " isForwarded=" + Boolean.toString(isForwarded) + ", isProperlyAddressed=" + Boolean.valueOf(isProperlyAddressed));
452 message = new Message(conversation, body, Message.ENCRYPTION_NONE, status);
453 }
454 } else if (pgpEncrypted != null && Config.supportOpenPgp()) {
455 message = new Message(conversation, pgpEncrypted, Message.ENCRYPTION_PGP, status);
456 } else if (axolotlEncrypted != null && Config.supportOmemo()) {
457 Jid origin;
458 if (conversationMultiMode) {
459 final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
460 origin = getTrueCounterpart(query != null ? mucUserElement : null, fallback);
461 if (origin == null) {
462 Log.d(Config.LOGTAG, "axolotl message in non anonymous conference received");
463 return;
464 }
465 } else {
466 origin = from;
467 }
468 message = parseAxolotlChat(axolotlEncrypted, origin, conversation, status);
469 if (message == null) {
470 if (query == null && extractChatState(mXmppConnectionService.find(account, counterpart.toBareJid()), isTypeGroupChat, packet)) {
471 mXmppConnectionService.updateConversationUi();
472 }
473 return;
474 }
475 if (conversationMultiMode) {
476 message.setTrueCounterpart(origin);
477 }
478 } else if (body == null && oobUrl != null) {
479 message = new Message(conversation, oobUrl, Message.ENCRYPTION_NONE, status);
480 message.setOob(true);
481 if (CryptoHelper.isPgpEncryptedUrl(oobUrl)) {
482 message.setEncryption(Message.ENCRYPTION_DECRYPTED);
483 }
484 } else {
485 message = new Message(conversation, body, Message.ENCRYPTION_NONE, status);
486 }
487
488 message.setCounterpart(counterpart);
489 message.setRemoteMsgId(remoteMsgId);
490 message.setServerMsgId(serverMsgId);
491 message.setCarbon(isCarbon);
492 message.setTime(timestamp);
493 if (body != null && body.equals(oobUrl)) {
494 message.setOob(true);
495 if (CryptoHelper.isPgpEncryptedUrl(oobUrl)) {
496 message.setEncryption(Message.ENCRYPTION_DECRYPTED);
497 }
498 }
499 message.markable = packet.hasChild("markable", "urn:xmpp:chat-markers:0");
500 if (conversationMultiMode) {
501 final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
502 Jid trueCounterpart;
503 if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL) {
504 trueCounterpart = message.getTrueCounterpart();
505 } else if (Config.PARSE_REAL_JID_FROM_MUC_MAM) {
506 trueCounterpart = getTrueCounterpart(query != null ? mucUserElement : null, fallback);
507 } else {
508 trueCounterpart = fallback;
509 }
510 if (trueCounterpart != null && trueCounterpart.toBareJid().equals(account.getJid().toBareJid())) {
511 status = isTypeGroupChat ? Message.STATUS_SEND_RECEIVED : Message.STATUS_SEND;
512 }
513 message.setStatus(status);
514 message.setTrueCounterpart(trueCounterpart);
515 if (!isTypeGroupChat) {
516 message.setType(Message.TYPE_PRIVATE);
517 }
518 } else {
519 updateLastseen(account, from);
520 }
521
522 if (replacementId != null && mXmppConnectionService.allowMessageCorrection()) {
523 Message replacedMessage = conversation.findMessageWithRemoteIdAndCounterpart(replacementId,
524 counterpart,
525 message.getStatus() == Message.STATUS_RECEIVED,
526 message.isCarbon());
527 if (replacedMessage != null) {
528 final boolean fingerprintsMatch = replacedMessage.getFingerprint() == null
529 || replacedMessage.getFingerprint().equals(message.getFingerprint());
530 final boolean trueCountersMatch = replacedMessage.getTrueCounterpart() != null
531 && replacedMessage.getTrueCounterpart().equals(message.getTrueCounterpart());
532 final boolean duplicate = conversation.hasDuplicateMessage(message);
533 if (fingerprintsMatch && (trueCountersMatch || !conversationMultiMode) && !duplicate) {
534 Log.d(Config.LOGTAG, "replaced message '" + replacedMessage.getBody() + "' with '" + message.getBody() + "'");
535 synchronized (replacedMessage) {
536 final String uuid = replacedMessage.getUuid();
537 replacedMessage.setUuid(UUID.randomUUID().toString());
538 replacedMessage.setBody(message.getBody());
539 replacedMessage.setEdited(replacedMessage.getRemoteMsgId());
540 replacedMessage.setRemoteMsgId(remoteMsgId);
541 replacedMessage.setEncryption(message.getEncryption());
542 if (replacedMessage.getStatus() == Message.STATUS_RECEIVED) {
543 replacedMessage.markUnread();
544 }
545 extractChatState(mXmppConnectionService.find(account, counterpart.toBareJid()), isTypeGroupChat, packet);
546 mXmppConnectionService.updateMessage(replacedMessage, uuid);
547 mXmppConnectionService.getNotificationService().updateNotification(false);
548 if (mXmppConnectionService.confirmMessages()
549 && (replacedMessage.trusted() || replacedMessage.getType() == Message.TYPE_PRIVATE)
550 && remoteMsgId != null
551 && !isForwarded
552 && !isTypeGroupChat) {
553 sendMessageReceipts(account, packet);
554 }
555 if (replacedMessage.getEncryption() == Message.ENCRYPTION_PGP) {
556 conversation.getAccount().getPgpDecryptionService().discard(replacedMessage);
557 conversation.getAccount().getPgpDecryptionService().decrypt(replacedMessage, false);
558 }
559 }
560 return;
561 } else {
562 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": received message correction but verification didn't check out");
563 }
564 }
565 }
566
567 long deletionDate = mXmppConnectionService.getAutomaticMessageDeletionDate();
568 if (deletionDate != 0 && message.getTimeSent() < deletionDate) {
569 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": skipping message from " + message.getCounterpart().toString() + " because it was sent prior to our deletion date");
570 return;
571 }
572
573 boolean checkForDuplicates = (isTypeGroupChat && packet.hasChild("delay", "urn:xmpp:delay"))
574 || message.getType() == Message.TYPE_PRIVATE
575 || message.getServerMsgId() != null;
576 if (checkForDuplicates && conversation.hasDuplicateMessage(message)) {
577 Log.d(Config.LOGTAG, "skipping duplicate message from " + message.getCounterpart().toString() + " " + message.getBody());
578 return;
579 }
580
581 if (query != null && query.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
582 conversation.prepend(message);
583 } else {
584 conversation.add(message);
585 }
586 if (query != null) {
587 query.incrementActualMessageCount();
588 }
589
590 if (query == null || query.isCatchup()) { //either no mam or catchup
591 if (status == Message.STATUS_SEND || status == Message.STATUS_SEND_RECEIVED) {
592 mXmppConnectionService.markRead(conversation);
593 if (query == null) {
594 activateGracePeriod(account);
595 }
596 } else {
597 message.markUnread();
598 notify = true;
599 }
600 }
601
602 if (message.getEncryption() == Message.ENCRYPTION_PGP) {
603 notify = conversation.getAccount().getPgpDecryptionService().decrypt(message, notify);
604 }
605
606 if (query == null) {
607 extractChatState(mXmppConnectionService.find(account, counterpart.toBareJid()), isTypeGroupChat, packet);
608 mXmppConnectionService.updateConversationUi();
609 }
610
611 if (mXmppConnectionService.confirmMessages()
612 && (message.trusted() || message.getType() == Message.TYPE_PRIVATE)
613 && remoteMsgId != null
614 && !isForwarded
615 && !isTypeGroupChat) {
616 sendMessageReceipts(account, packet);
617 }
618
619 if (message.getStatus() == Message.STATUS_RECEIVED
620 && conversation.getOtrSession() != null
621 && !conversation.getOtrSession().getSessionID().getUserID()
622 .equals(message.getCounterpart().getResourcepart())) {
623 conversation.endOtrIfNeeded();
624 }
625
626 mXmppConnectionService.databaseBackend.createMessage(message);
627 final HttpConnectionManager manager = this.mXmppConnectionService.getHttpConnectionManager();
628 if (message.trusted() && message.treatAsDownloadable() && manager.getAutoAcceptFileSize() > 0) {
629 manager.createNewDownloadConnection(message);
630 } else if (notify) {
631 if (query != null && query.isCatchup()) {
632 mXmppConnectionService.getNotificationService().pushFromBacklog(message);
633 } else {
634 mXmppConnectionService.getNotificationService().push(message);
635 }
636 }
637 } else if (!packet.hasChild("body")) { //no body
638
639 if (query == null && extractChatState(mXmppConnectionService.find(account, counterpart.toBareJid()), isTypeGroupChat, packet)) {
640 mXmppConnectionService.updateConversationUi();
641 }
642
643 final Conversation conversation = mXmppConnectionService.find(account, from.toBareJid());
644 if (isTypeGroupChat) {
645 if (packet.hasChild("subject")) {
646 if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
647 conversation.setHasMessagesLeftOnServer(conversation.countMessages() > 0);
648 String subject = packet.findChildContent("subject");
649 conversation.getMucOptions().setSubject(subject);
650 final Bookmark bookmark = conversation.getBookmark();
651 if (bookmark != null && bookmark.getBookmarkName() == null) {
652 if (bookmark.setBookmarkName(subject)) {
653 mXmppConnectionService.pushBookmarks(account);
654 }
655 }
656 mXmppConnectionService.updateConversationUi();
657 return;
658 }
659 }
660 }
661 if (conversation != null && mucUserElement != null && from.isBareJid()) {
662 for (Element child : mucUserElement.getChildren()) {
663 if ("status".equals(child.getName())) {
664 try {
665 int code = Integer.parseInt(child.getAttribute("code"));
666 if ((code >= 170 && code <= 174) || (code >= 102 && code <= 104)) {
667 mXmppConnectionService.fetchConferenceConfiguration(conversation);
668 break;
669 }
670 } catch (Exception e) {
671 //ignored
672 }
673 } else if ("item".equals(child.getName())) {
674 MucOptions.User user = AbstractParser.parseItem(conversation, child);
675 Log.d(Config.LOGTAG, account.getJid() + ": changing affiliation for "
676 + user.getRealJid() + " to " + user.getAffiliation() + " in "
677 + conversation.getJid().toBareJid());
678 if (!user.realJidMatchesAccount()) {
679 boolean isNew = conversation.getMucOptions().updateUser(user);
680 mXmppConnectionService.getAvatarService().clear(conversation);
681 mXmppConnectionService.updateMucRosterUi();
682 mXmppConnectionService.updateConversationUi();
683 if (!user.getAffiliation().ranks(MucOptions.Affiliation.MEMBER)) {
684 Jid jid = user.getRealJid();
685 List<Jid> cryptoTargets = conversation.getAcceptedCryptoTargets();
686 if (cryptoTargets.remove(user.getRealJid())) {
687 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": removed " + jid + " from crypto targets of " + conversation.getName());
688 conversation.setAcceptedCryptoTargets(cryptoTargets);
689 mXmppConnectionService.updateConversation(conversation);
690 }
691 } else if (isNew && user.getRealJid() != null && account.getAxolotlService().hasEmptyDeviceList(user.getRealJid())) {
692 account.getAxolotlService().fetchDeviceIds(user.getRealJid());
693 }
694 }
695 }
696 }
697 }
698 }
699
700 Element received = packet.findChild("received", "urn:xmpp:chat-markers:0");
701 if (received == null) {
702 received = packet.findChild("received", "urn:xmpp:receipts");
703 }
704 if (received != null && !packet.fromAccount(account)) {
705 mXmppConnectionService.markMessage(account, from.toBareJid(), received.getAttribute("id"), Message.STATUS_SEND_RECEIVED);
706 }
707 Element displayed = packet.findChild("displayed", "urn:xmpp:chat-markers:0");
708 if (displayed != null) {
709 final String id = displayed.getAttribute("id");
710 final Jid sender = displayed.getAttributeAsJid("sender");
711 if (packet.fromAccount(account)) {
712 Conversation conversation = mXmppConnectionService.find(account, counterpart.toBareJid());
713 if (conversation != null && (query == null || query.isCatchup())) {
714 mXmppConnectionService.markRead(conversation);
715 }
716 } else if (isTypeGroupChat) {
717 Conversation conversation = mXmppConnectionService.find(account, counterpart.toBareJid());
718 if (conversation != null && id != null && sender != null) {
719 Message message = conversation.findMessageWithRemoteId(id, sender);
720 if (message != null) {
721 if (conversation.getMucOptions().isSelf(counterpart)) {
722 if (!message.isRead() && (query == null || query.isCatchup())) { //checking if message is unread fixes race conditions with reflections
723 mXmppConnectionService.markRead(conversation);
724 }
725 } else {
726 final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
727 Jid trueJid = getTrueCounterpart(query != null ? mucUserElement : null, fallback);
728 ReadByMarker readByMarker = ReadByMarker.from(counterpart, trueJid);
729 if (message.addReadByMarker(readByMarker)) {
730 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": added read by (" + readByMarker.getRealJid() + ") to message '" + message.getBody() + "'");
731 mXmppConnectionService.updateMessage(message);
732 }
733 }
734 }
735 }
736 } else {
737 final Message displayedMessage = mXmppConnectionService.markMessage(account, from.toBareJid(), id, Message.STATUS_SEND_DISPLAYED);
738 Message message = displayedMessage == null ? null : displayedMessage.prev();
739 while (message != null
740 && message.getStatus() == Message.STATUS_SEND_RECEIVED
741 && message.getTimeSent() < displayedMessage.getTimeSent()) {
742 mXmppConnectionService.markMessage(message, Message.STATUS_SEND_DISPLAYED);
743 message = message.prev();
744 }
745 }
746 }
747
748 Element event = original.findChild("event", "http://jabber.org/protocol/pubsub#event");
749 if (event != null) {
750 parseEvent(event, original.getFrom(), account);
751 }
752
753 final String nick = packet.findChildContent("nick", Namespace.NICK);
754 if (nick != null) {
755 Contact contact = account.getRoster().getContact(from);
756 if (contact.setPresenceName(nick)) {
757 mXmppConnectionService.getAvatarService().clear(contact);
758 }
759 }
760 }
761
762 private static Jid getTrueCounterpart(Element mucUserElement, Jid fallback) {
763 final Element item = mucUserElement == null ? null : mucUserElement.findChild("item");
764 Jid result = item == null ? null : item.getAttributeAsJid("jid");
765 return result != null ? result : fallback;
766 }
767
768 private void sendMessageReceipts(Account account, MessagePacket packet) {
769 ArrayList<String> receiptsNamespaces = new ArrayList<>();
770 if (packet.hasChild("markable", "urn:xmpp:chat-markers:0")) {
771 receiptsNamespaces.add("urn:xmpp:chat-markers:0");
772 }
773 if (packet.hasChild("request", "urn:xmpp:receipts")) {
774 receiptsNamespaces.add("urn:xmpp:receipts");
775 }
776 if (receiptsNamespaces.size() > 0) {
777 MessagePacket receipt = mXmppConnectionService.getMessageGenerator().received(account,
778 packet,
779 receiptsNamespaces,
780 packet.getType());
781 mXmppConnectionService.sendMessagePacket(account, receipt);
782 }
783 }
784
785 private static final SimpleDateFormat TIME_FORMAT = new SimpleDateFormat("HH:mm:ss", Locale.ENGLISH);
786
787 private void activateGracePeriod(Account account) {
788 long duration = mXmppConnectionService.getLongPreference("grace_period_length", R.integer.grace_period) * 1000;
789 Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": activating grace period till " + TIME_FORMAT.format(new Date(System.currentTimeMillis() + duration)));
790 account.activateGracePeriod(duration);
791 }
792}