1package eu.siacs.conversations.parser;
2
3import android.util.Log;
4import android.util.Pair;
5
6import java.net.URL;
7import java.text.SimpleDateFormat;
8import java.util.ArrayList;
9import java.util.Collections;
10import java.util.Date;
11import java.util.List;
12import java.util.Locale;
13import java.util.Set;
14import java.util.UUID;
15
16import eu.siacs.conversations.Config;
17import eu.siacs.conversations.R;
18import eu.siacs.conversations.crypto.axolotl.AxolotlService;
19import eu.siacs.conversations.crypto.axolotl.BrokenSessionException;
20import eu.siacs.conversations.crypto.axolotl.NotEncryptedForThisDeviceException;
21import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
22import eu.siacs.conversations.entities.Account;
23import eu.siacs.conversations.entities.Contact;
24import eu.siacs.conversations.entities.Conversation;
25import eu.siacs.conversations.entities.Conversational;
26import eu.siacs.conversations.entities.Message;
27import eu.siacs.conversations.entities.MucOptions;
28import eu.siacs.conversations.entities.ReadByMarker;
29import eu.siacs.conversations.entities.ReceiptRequest;
30import eu.siacs.conversations.http.HttpConnectionManager;
31import eu.siacs.conversations.http.P1S3UrlStreamHandler;
32import eu.siacs.conversations.services.MessageArchiveService;
33import eu.siacs.conversations.services.QuickConversationsService;
34import eu.siacs.conversations.services.XmppConnectionService;
35import eu.siacs.conversations.utils.CryptoHelper;
36import eu.siacs.conversations.xml.LocalizedContent;
37import eu.siacs.conversations.xml.Namespace;
38import eu.siacs.conversations.xml.Element;
39import eu.siacs.conversations.xmpp.InvalidJid;
40import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
41import eu.siacs.conversations.xmpp.chatstate.ChatState;
42import eu.siacs.conversations.xmpp.pep.Avatar;
43import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
44import rocks.xmpp.addr.Jid;
45
46public class MessageParser extends AbstractParser implements OnMessagePacketReceived {
47
48 private static final SimpleDateFormat TIME_FORMAT = new SimpleDateFormat("HH:mm:ss", Locale.ENGLISH);
49
50 public MessageParser(XmppConnectionService service) {
51 super(service);
52 }
53
54 private static String extractStanzaId(Element packet, boolean isTypeGroupChat, Conversation conversation) {
55 final Jid by;
56 final boolean safeToExtract;
57 if (isTypeGroupChat) {
58 by = conversation.getJid().asBareJid();
59 safeToExtract = conversation.getMucOptions().hasFeature(Namespace.STANZA_IDS);
60 } else {
61 Account account = conversation.getAccount();
62 by = account.getJid().asBareJid();
63 safeToExtract = account.getXmppConnection().getFeatures().stanzaIds();
64 }
65 return safeToExtract ? extractStanzaId(packet, by) : null;
66 }
67
68 private static String extractStanzaId(Element packet, Jid by) {
69 for (Element child : packet.getChildren()) {
70 if (child.getName().equals("stanza-id")
71 && Namespace.STANZA_IDS.equals(child.getNamespace())
72 && by.equals(InvalidJid.getNullForInvalid(child.getAttributeAsJid("by")))) {
73 return child.getAttribute("id");
74 }
75 }
76 return null;
77 }
78
79 private static Jid getTrueCounterpart(Element mucUserElement, Jid fallback) {
80 final Element item = mucUserElement == null ? null : mucUserElement.findChild("item");
81 Jid result = item == null ? null : InvalidJid.getNullForInvalid(item.getAttributeAsJid("jid"));
82 return result != null ? result : fallback;
83 }
84
85 private boolean extractChatState(Conversation c, final boolean isTypeGroupChat, final MessagePacket packet) {
86 ChatState state = ChatState.parse(packet);
87 if (state != null && c != null) {
88 final Account account = c.getAccount();
89 Jid from = packet.getFrom();
90 if (from.asBareJid().equals(account.getJid().asBareJid())) {
91 c.setOutgoingChatState(state);
92 if (state == ChatState.ACTIVE || state == ChatState.COMPOSING) {
93 mXmppConnectionService.markRead(c);
94 activateGracePeriod(account);
95 }
96 return false;
97 } else {
98 if (isTypeGroupChat) {
99 MucOptions.User user = c.getMucOptions().findUserByFullJid(from);
100 if (user != null) {
101 return user.setChatState(state);
102 } else {
103 return false;
104 }
105 } else {
106 return c.setIncomingChatState(state);
107 }
108 }
109 }
110 return false;
111 }
112
113 private Message parseAxolotlChat(Element axolotlMessage, Jid from, Conversation conversation, int status, boolean checkedForDuplicates, boolean postpone) {
114 final AxolotlService service = conversation.getAccount().getAxolotlService();
115 final XmppAxolotlMessage xmppAxolotlMessage;
116 try {
117 xmppAxolotlMessage = XmppAxolotlMessage.fromElement(axolotlMessage, from.asBareJid());
118 } catch (Exception e) {
119 Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": invalid omemo message received " + e.getMessage());
120 return null;
121 }
122 if (xmppAxolotlMessage.hasPayload()) {
123 final XmppAxolotlMessage.XmppAxolotlPlaintextMessage plaintextMessage;
124 try {
125 plaintextMessage = service.processReceivingPayloadMessage(xmppAxolotlMessage, postpone);
126 } catch (BrokenSessionException e) {
127 if (checkedForDuplicates) {
128 if (service.trustedOrPreviouslyResponded(from.asBareJid())) {
129 service.reportBrokenSessionException(e, postpone);
130 return new Message(conversation, "", Message.ENCRYPTION_AXOLOTL_FAILED, status);
131 } else {
132 Log.d(Config.LOGTAG, "ignoring broken session exception because contact was not trusted");
133 return new Message(conversation, "", Message.ENCRYPTION_AXOLOTL_FAILED, status);
134 }
135 } else {
136 Log.d(Config.LOGTAG,"ignoring broken session exception because checkForDuplicates failed");
137 //TODO should be still emit a failed message?
138 return null;
139 }
140 } catch (NotEncryptedForThisDeviceException e) {
141 return new Message(conversation, "", Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE, status);
142 }
143 if (plaintextMessage != null) {
144 Message finishedMessage = new Message(conversation, plaintextMessage.getPlaintext(), Message.ENCRYPTION_AXOLOTL, status);
145 finishedMessage.setFingerprint(plaintextMessage.getFingerprint());
146 Log.d(Config.LOGTAG, AxolotlService.getLogprefix(finishedMessage.getConversation().getAccount()) + " Received Message with session fingerprint: " + plaintextMessage.getFingerprint());
147 return finishedMessage;
148 }
149 } else {
150 Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": received OMEMO key transport message");
151 service.processReceivingKeyTransportMessage(xmppAxolotlMessage, postpone);
152 }
153 return null;
154 }
155
156 private Invite extractInvite(Account account, Element message) {
157 Element x = message.findChild("x", "http://jabber.org/protocol/muc#user");
158 if (x != null) {
159 Element invite = x.findChild("invite");
160 if (invite != null) {
161 String password = x.findChildContent("password");
162 Jid from = InvalidJid.getNullForInvalid(invite.getAttributeAsJid("from"));
163 Contact contact = from == null ? null : account.getRoster().getContact(from);
164 Jid room = InvalidJid.getNullForInvalid(message.getAttributeAsJid("from"));
165 if (room == null) {
166 return null;
167 }
168 return new Invite(room, password, contact);
169 }
170 } else {
171 x = message.findChild("x", "jabber:x:conference");
172 if (x != null) {
173 Jid from = InvalidJid.getNullForInvalid(message.getAttributeAsJid("from"));
174 Contact contact = from == null ? null : account.getRoster().getContact(from);
175 Jid room = InvalidJid.getNullForInvalid(x.getAttributeAsJid("jid"));
176 if (room == null) {
177 return null;
178 }
179 return new Invite(room, x.getAttribute("password"), contact);
180 }
181 }
182 return null;
183 }
184
185 private void parseEvent(final Element event, final Jid from, final Account account) {
186 Element items = event.findChild("items");
187 String node = items == null ? null : items.getAttribute("node");
188 if ("urn:xmpp:avatar:metadata".equals(node)) {
189 Avatar avatar = Avatar.parseMetadata(items);
190 if (avatar != null) {
191 avatar.owner = from.asBareJid();
192 if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
193 if (account.getJid().asBareJid().equals(from)) {
194 if (account.setAvatar(avatar.getFilename())) {
195 mXmppConnectionService.databaseBackend.updateAccount(account);
196 mXmppConnectionService.notifyAccountAvatarHasChanged(account);
197 }
198 mXmppConnectionService.getAvatarService().clear(account);
199 mXmppConnectionService.updateConversationUi();
200 mXmppConnectionService.updateAccountUi();
201 } else {
202 Contact contact = account.getRoster().getContact(from);
203 if (contact.setAvatar(avatar)) {
204 mXmppConnectionService.syncRoster(account);
205 mXmppConnectionService.getAvatarService().clear(contact);
206 mXmppConnectionService.updateConversationUi();
207 mXmppConnectionService.updateRosterUi();
208 }
209 }
210 } else if (mXmppConnectionService.isDataSaverDisabled()) {
211 mXmppConnectionService.fetchAvatar(account, avatar);
212 }
213 }
214 } else if (Namespace.NICK.equals(node)) {
215 final Element i = items.findChild("item");
216 final String nick = i == null ? null : i.findChildContent("nick", Namespace.NICK);
217 if (nick != null) {
218 setNick(account, from, nick);
219 }
220 } else if (AxolotlService.PEP_DEVICE_LIST.equals(node)) {
221 Element item = items.findChild("item");
222 Set<Integer> deviceIds = mXmppConnectionService.getIqParser().deviceIds(item);
223 Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Received PEP device list " + deviceIds + " update from " + from + ", processing... ");
224 AxolotlService axolotlService = account.getAxolotlService();
225 axolotlService.registerDevices(from, deviceIds);
226 } else if (Namespace.BOOKMARKS.equals(node) && account.getJid().asBareJid().equals(from)) {
227 if (account.getXmppConnection().getFeatures().bookmarksConversion()) {
228 final Element i = items.findChild("item");
229 final Element storage = i == null ? null : i.findChild("storage", Namespace.BOOKMARKS);
230 mXmppConnectionService.processBookmarks(account, storage, true);
231 Log.d(Config.LOGTAG,account.getJid().asBareJid()+": processing bookmark PEP event");
232 } else {
233 Log.d(Config.LOGTAG,account.getJid().asBareJid()+": ignoring bookmark PEP event because bookmark conversion was not detected");
234 }
235 }
236 }
237
238 private void parseDeleteEvent(final Element event, final Jid from, final Account account) {
239 final Element delete = event.findChild("delete");
240 if (delete == null) {
241 return;
242 }
243 String node = delete.getAttribute("node");
244 if (Namespace.NICK.equals(node)) {
245 Log.d(Config.LOGTAG, "parsing nick delete event from " + from);
246 setNick(account, from, null);
247 }
248 }
249
250 private void setNick(Account account, Jid user, String nick) {
251 if (user.asBareJid().equals(account.getJid().asBareJid())) {
252 account.setDisplayName(nick);
253 if (QuickConversationsService.isQuicksy()) {
254 mXmppConnectionService.getAvatarService().clear(account);
255 }
256 } else {
257 Contact contact = account.getRoster().getContact(user);
258 if (contact.setPresenceName(nick)) {
259 mXmppConnectionService.getAvatarService().clear(contact);
260 }
261 }
262 mXmppConnectionService.updateConversationUi();
263 mXmppConnectionService.updateAccountUi();
264 }
265
266 private boolean handleErrorMessage(Account account, MessagePacket packet) {
267 if (packet.getType() == MessagePacket.TYPE_ERROR) {
268 Jid from = packet.getFrom();
269 if (from != null) {
270 mXmppConnectionService.markMessage(account,
271 from.asBareJid(),
272 packet.getId(),
273 Message.STATUS_SEND_FAILED,
274 extractErrorMessage(packet));
275 final Element error = packet.findChild("error");
276 final boolean pingWorthyError = error != null && (error.hasChild("not-acceptable") || error.hasChild("remote-server-timeout") || error.hasChild("remote-server-not-found"));
277 if (pingWorthyError) {
278 Conversation conversation = mXmppConnectionService.find(account,from);
279 if (conversation != null && conversation.getMode() == Conversational.MODE_MULTI) {
280 if (conversation.getMucOptions().online()) {
281 Log.d(Config.LOGTAG,account.getJid().asBareJid()+": received ping worthy error for seemingly online muc at "+from);
282 mXmppConnectionService.mucSelfPingAndRejoin(conversation);
283 }
284 }
285 }
286 }
287 return true;
288 }
289 return false;
290 }
291
292 @Override
293 public void onMessagePacketReceived(Account account, MessagePacket original) {
294 if (handleErrorMessage(account, original)) {
295 return;
296 }
297 final MessagePacket packet;
298 Long timestamp = null;
299 boolean isCarbon = false;
300 String serverMsgId = null;
301 final Element fin = original.findChild("fin", MessageArchiveService.Version.MAM_0.namespace);
302 if (fin != null) {
303 mXmppConnectionService.getMessageArchiveService().processFinLegacy(fin, original.getFrom());
304 return;
305 }
306 final Element result = MessageArchiveService.Version.findResult(original);
307 final MessageArchiveService.Query query = result == null ? null : mXmppConnectionService.getMessageArchiveService().findQuery(result.getAttribute("queryid"));
308 if (query != null && query.validFrom(original.getFrom())) {
309 Pair<MessagePacket, Long> f = original.getForwardedMessagePacket("result", query.version.namespace);
310 if (f == null) {
311 return;
312 }
313 timestamp = f.second;
314 packet = f.first;
315 serverMsgId = result.getAttribute("id");
316 query.incrementMessageCount();
317 } else if (query != null) {
318 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received mam result from invalid sender");
319 return;
320 } else if (original.fromServer(account)) {
321 Pair<MessagePacket, Long> f;
322 f = original.getForwardedMessagePacket("received", "urn:xmpp:carbons:2");
323 f = f == null ? original.getForwardedMessagePacket("sent", "urn:xmpp:carbons:2") : f;
324 packet = f != null ? f.first : original;
325 if (handleErrorMessage(account, packet)) {
326 return;
327 }
328 timestamp = f != null ? f.second : null;
329 isCarbon = f != null;
330 } else {
331 packet = original;
332 }
333
334 if (timestamp == null) {
335 timestamp = AbstractParser.parseTimestamp(original, AbstractParser.parseTimestamp(packet));
336 }
337 final LocalizedContent body = packet.getBody();
338 final Element mucUserElement = packet.findChild("x", "http://jabber.org/protocol/muc#user");
339 final String pgpEncrypted = packet.findChildContent("x", "jabber:x:encrypted");
340 final Element replaceElement = packet.findChild("replace", "urn:xmpp:message-correct:0");
341 final Element oob = packet.findChild("x", Namespace.OOB);
342 final Element xP1S3 = packet.findChild("x", Namespace.P1_S3_FILE_TRANSFER);
343 final URL xP1S3url = xP1S3 == null ? null : P1S3UrlStreamHandler.of(xP1S3);
344 final String oobUrl = oob != null ? oob.findChildContent("url") : null;
345 final String replacementId = replaceElement == null ? null : replaceElement.getAttribute("id");
346 final Element axolotlEncrypted = packet.findChildEnsureSingle(XmppAxolotlMessage.CONTAINERTAG, AxolotlService.PEP_PREFIX);
347 int status;
348 final Jid counterpart;
349 final Jid to = packet.getTo();
350 final Jid from = packet.getFrom();
351 final Element originId = packet.findChild("origin-id", Namespace.STANZA_IDS);
352 final String remoteMsgId;
353 if (originId != null && originId.getAttribute("id") != null) {
354 remoteMsgId = originId.getAttribute("id");
355 } else {
356 remoteMsgId = packet.getId();
357 }
358 boolean notify = false;
359
360 if (from == null || !InvalidJid.isValid(from) || !InvalidJid.isValid(to)) {
361 Log.e(Config.LOGTAG, "encountered invalid message from='" + from + "' to='" + to + "'");
362 return;
363 }
364
365 boolean isTypeGroupChat = packet.getType() == MessagePacket.TYPE_GROUPCHAT;
366 if (query != null && !query.muc() && isTypeGroupChat) {
367 Log.e(Config.LOGTAG, account.getJid().asBareJid() + ": received groupchat (" + from + ") message on regular MAM request. skipping");
368 return;
369 }
370 boolean isMucStatusMessage = InvalidJid.hasValidFrom(packet) && from.isBareJid() && mucUserElement != null && mucUserElement.hasChild("status");
371 boolean selfAddressed;
372 if (packet.fromAccount(account)) {
373 status = Message.STATUS_SEND;
374 selfAddressed = to == null || account.getJid().asBareJid().equals(to.asBareJid());
375 if (selfAddressed) {
376 counterpart = from;
377 } else {
378 counterpart = to != null ? to : account.getJid();
379 }
380 } else {
381 status = Message.STATUS_RECEIVED;
382 counterpart = from;
383 selfAddressed = false;
384 }
385
386 Invite invite = extractInvite(account, packet);
387 if (invite != null && invite.execute(account)) {
388 return;
389 }
390
391 if ((body != null || pgpEncrypted != null || (axolotlEncrypted != null && axolotlEncrypted.hasChild("payload")) || oobUrl != null || xP1S3 != null) && !isMucStatusMessage) {
392 final boolean conversationIsProbablyMuc = isTypeGroupChat || mucUserElement != null || account.getXmppConnection().getMucServersWithholdAccount().contains(counterpart.getDomain());
393 final Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, counterpart.asBareJid(), conversationIsProbablyMuc, false, query, false);
394 final boolean conversationMultiMode = conversation.getMode() == Conversation.MODE_MULTI;
395
396 if (serverMsgId == null) {
397 serverMsgId = extractStanzaId(packet, isTypeGroupChat, conversation);
398 }
399
400
401 if (selfAddressed) {
402 if (mXmppConnectionService.markMessage(conversation, remoteMsgId, Message.STATUS_SEND_RECEIVED, serverMsgId)) {
403 return;
404 }
405 status = Message.STATUS_RECEIVED;
406 if (remoteMsgId != null && conversation.findMessageWithRemoteId(remoteMsgId, counterpart) != null) {
407 return;
408 }
409 }
410
411 if (isTypeGroupChat) {
412 if (conversation.getMucOptions().isSelf(counterpart)) {
413 status = Message.STATUS_SEND_RECEIVED;
414 isCarbon = true; //not really carbon but received from another resource
415 if (mXmppConnectionService.markMessage(conversation, remoteMsgId, status, serverMsgId)) {
416 return;
417 } else if (remoteMsgId == null || Config.IGNORE_ID_REWRITE_IN_MUC) {
418 LocalizedContent localizedBody = packet.getBody();
419 if (localizedBody != null) {
420 Message message = conversation.findSentMessageWithBody(localizedBody.content);
421 if (message != null) {
422 mXmppConnectionService.markMessage(message, status);
423 return;
424 }
425 }
426 }
427 } else {
428 status = Message.STATUS_RECEIVED;
429 }
430 }
431 final Message message;
432 if (xP1S3url != null) {
433 message = new Message(conversation, xP1S3url.toString(), Message.ENCRYPTION_NONE, status);
434 message.setOob(true);
435 if (CryptoHelper.isPgpEncryptedUrl(xP1S3url.toString())) {
436 message.setEncryption(Message.ENCRYPTION_DECRYPTED);
437 }
438 } else if (pgpEncrypted != null && Config.supportOpenPgp()) {
439 message = new Message(conversation, pgpEncrypted, Message.ENCRYPTION_PGP, status);
440 } else if (axolotlEncrypted != null && Config.supportOmemo()) {
441 Jid origin;
442 Set<Jid> fallbacksBySourceId = Collections.emptySet();
443 if (conversationMultiMode) {
444 final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
445 origin = getTrueCounterpart(query != null ? mucUserElement : null, fallback);
446 if (origin == null) {
447 try {
448 fallbacksBySourceId = account.getAxolotlService().findCounterpartsBySourceId(XmppAxolotlMessage.parseSourceId(axolotlEncrypted));
449 } catch (IllegalArgumentException e) {
450 //ignoring
451 }
452 }
453 if (origin == null && fallbacksBySourceId.size() == 0) {
454 Log.d(Config.LOGTAG, "axolotl message in anonymous conference received and no possible fallbacks");
455 return;
456 }
457 } else {
458 fallbacksBySourceId = Collections.emptySet();
459 origin = from;
460 }
461
462 //TODO either or is probably fine?
463 final boolean checkedForDuplicates = serverMsgId != null && remoteMsgId != null && !conversation.possibleDuplicate(serverMsgId, remoteMsgId);
464
465 if (origin != null) {
466 message = parseAxolotlChat(axolotlEncrypted, origin, conversation, status, checkedForDuplicates,query != null);
467 } else {
468 Message trial = null;
469 for (Jid fallback : fallbacksBySourceId) {
470 trial = parseAxolotlChat(axolotlEncrypted, fallback, conversation, status, checkedForDuplicates && fallbacksBySourceId.size() == 1, query != null);
471 if (trial != null) {
472 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": decoded muc message using fallback");
473 origin = fallback;
474 break;
475 }
476 }
477 message = trial;
478 }
479 if (message == null) {
480 if (query == null && extractChatState(mXmppConnectionService.find(account, counterpart.asBareJid()), isTypeGroupChat, packet)) {
481 mXmppConnectionService.updateConversationUi();
482 }
483 if (query != null && status == Message.STATUS_SEND && remoteMsgId != null) {
484 Message previouslySent = conversation.findSentMessageWithUuid(remoteMsgId);
485 if (previouslySent != null && previouslySent.getServerMsgId() == null && serverMsgId != null) {
486 previouslySent.setServerMsgId(serverMsgId);
487 mXmppConnectionService.databaseBackend.updateMessage(previouslySent, false);
488 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": encountered previously sent OMEMO message without serverId. updating...");
489 }
490 }
491 return;
492 }
493 if (conversationMultiMode) {
494 message.setTrueCounterpart(origin);
495 }
496 } else if (body == null && oobUrl != null) {
497 message = new Message(conversation, oobUrl, Message.ENCRYPTION_NONE, status);
498 message.setOob(true);
499 if (CryptoHelper.isPgpEncryptedUrl(oobUrl)) {
500 message.setEncryption(Message.ENCRYPTION_DECRYPTED);
501 }
502 } else {
503 message = new Message(conversation, body.content, Message.ENCRYPTION_NONE, status);
504 if (body.count > 1) {
505 message.setBodyLanguage(body.language);
506 }
507 }
508
509 message.setCounterpart(counterpart);
510 message.setRemoteMsgId(remoteMsgId);
511 message.setServerMsgId(serverMsgId);
512 message.setCarbon(isCarbon);
513 message.setTime(timestamp);
514 if (body != null && body.content != null && body.content.equals(oobUrl)) {
515 message.setOob(true);
516 if (CryptoHelper.isPgpEncryptedUrl(oobUrl)) {
517 message.setEncryption(Message.ENCRYPTION_DECRYPTED);
518 }
519 }
520 message.markable = packet.hasChild("markable", "urn:xmpp:chat-markers:0");
521 if (conversationMultiMode) {
522 message.setMucUser(conversation.getMucOptions().findUserByFullJid(counterpart));
523 final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
524 Jid trueCounterpart;
525 if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL) {
526 trueCounterpart = message.getTrueCounterpart();
527 } else if (query != null && query.safeToExtractTrueCounterpart()) {
528 trueCounterpart = getTrueCounterpart(mucUserElement, fallback);
529 } else {
530 trueCounterpart = fallback;
531 }
532 if (trueCounterpart != null && isTypeGroupChat) {
533 if (trueCounterpart.asBareJid().equals(account.getJid().asBareJid())) {
534 status = isTypeGroupChat ? Message.STATUS_SEND_RECEIVED : Message.STATUS_SEND;
535 } else {
536 status = Message.STATUS_RECEIVED;
537 message.setCarbon(false);
538 }
539 }
540 message.setStatus(status);
541 message.setTrueCounterpart(trueCounterpart);
542 if (!isTypeGroupChat) {
543 message.setType(Message.TYPE_PRIVATE);
544 }
545 } else {
546 updateLastseen(account, from);
547 }
548
549 if (replacementId != null && mXmppConnectionService.allowMessageCorrection()) {
550 final Message replacedMessage = conversation.findMessageWithRemoteIdAndCounterpart(replacementId,
551 counterpart,
552 message.getStatus() == Message.STATUS_RECEIVED,
553 message.isCarbon());
554 if (replacedMessage != null) {
555 final boolean fingerprintsMatch = replacedMessage.getFingerprint() == null
556 || replacedMessage.getFingerprint().equals(message.getFingerprint());
557 final boolean trueCountersMatch = replacedMessage.getTrueCounterpart() != null
558 && message.getTrueCounterpart() != null
559 && replacedMessage.getTrueCounterpart().asBareJid().equals(message.getTrueCounterpart().asBareJid());
560 final boolean mucUserMatches = query == null && replacedMessage.sameMucUser(message); //can not be checked when using mam
561 final boolean duplicate = conversation.hasDuplicateMessage(message);
562 if (fingerprintsMatch && (trueCountersMatch || !conversationMultiMode || mucUserMatches) && !duplicate) {
563 Log.d(Config.LOGTAG, "replaced message '" + replacedMessage.getBody() + "' with '" + message.getBody() + "'");
564 synchronized (replacedMessage) {
565 final String uuid = replacedMessage.getUuid();
566 replacedMessage.setUuid(UUID.randomUUID().toString());
567 replacedMessage.setBody(message.getBody());
568 replacedMessage.putEdited(replacedMessage.getRemoteMsgId(), replacedMessage.getServerMsgId());
569 replacedMessage.setRemoteMsgId(remoteMsgId);
570 if (replacedMessage.getServerMsgId() == null || message.getServerMsgId() != null) {
571 replacedMessage.setServerMsgId(message.getServerMsgId());
572 }
573 replacedMessage.setEncryption(message.getEncryption());
574 if (replacedMessage.getStatus() == Message.STATUS_RECEIVED) {
575 replacedMessage.markUnread();
576 }
577 extractChatState(mXmppConnectionService.find(account, counterpart.asBareJid()), isTypeGroupChat, packet);
578 mXmppConnectionService.updateMessage(replacedMessage, uuid);
579 if (mXmppConnectionService.confirmMessages()
580 && replacedMessage.getStatus() == Message.STATUS_RECEIVED
581 && (replacedMessage.trusted() || replacedMessage.isPrivateMessage()) //TODO do we really want to send receipts for all PMs?
582 && remoteMsgId != null
583 && !selfAddressed
584 && !isTypeGroupChat) {
585 processMessageReceipts(account, packet, query);
586 }
587 if (replacedMessage.getEncryption() == Message.ENCRYPTION_PGP) {
588 conversation.getAccount().getPgpDecryptionService().discard(replacedMessage);
589 conversation.getAccount().getPgpDecryptionService().decrypt(replacedMessage, false);
590 }
591 }
592 mXmppConnectionService.getNotificationService().updateNotification();
593 return;
594 } else {
595 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received message correction but verification didn't check out");
596 }
597 }
598 }
599
600 long deletionDate = mXmppConnectionService.getAutomaticMessageDeletionDate();
601 if (deletionDate != 0 && message.getTimeSent() < deletionDate) {
602 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": skipping message from " + message.getCounterpart().toString() + " because it was sent prior to our deletion date");
603 return;
604 }
605
606 boolean checkForDuplicates = (isTypeGroupChat && packet.hasChild("delay", "urn:xmpp:delay"))
607 || message.isPrivateMessage()
608 || message.getServerMsgId() != null
609 || (query == null && mXmppConnectionService.getMessageArchiveService().isCatchupInProgress(conversation));
610 if (checkForDuplicates) {
611 final Message duplicate = conversation.findDuplicateMessage(message);
612 if (duplicate != null) {
613 final boolean serverMsgIdUpdated;
614 if (duplicate.getStatus() != Message.STATUS_RECEIVED
615 && duplicate.getUuid().equals(message.getRemoteMsgId())
616 && duplicate.getServerMsgId() == null
617 && message.getServerMsgId() != null) {
618 duplicate.setServerMsgId(message.getServerMsgId());
619 if (mXmppConnectionService.databaseBackend.updateMessage(duplicate, false)) {
620 serverMsgIdUpdated = true;
621 } else {
622 serverMsgIdUpdated = false;
623 Log.e(Config.LOGTAG, "failed to update message");
624 }
625 } else {
626 serverMsgIdUpdated = false;
627 }
628 Log.d(Config.LOGTAG, "skipping duplicate message with " + message.getCounterpart() + ". serverMsgIdUpdated=" + serverMsgIdUpdated);
629 return;
630 }
631 }
632
633 if (query != null && query.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
634 conversation.prepend(query.getActualInThisQuery(), message);
635 } else {
636 conversation.add(message);
637 }
638 if (query != null) {
639 query.incrementActualMessageCount();
640 }
641
642 if (query == null || query.isCatchup()) { //either no mam or catchup
643 if (status == Message.STATUS_SEND || status == Message.STATUS_SEND_RECEIVED) {
644 mXmppConnectionService.markRead(conversation);
645 if (query == null) {
646 activateGracePeriod(account);
647 }
648 } else {
649 message.markUnread();
650 notify = true;
651 }
652 }
653
654 if (message.getEncryption() == Message.ENCRYPTION_PGP) {
655 notify = conversation.getAccount().getPgpDecryptionService().decrypt(message, notify);
656 } else if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE || message.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
657 notify = false;
658 }
659
660 if (query == null) {
661 extractChatState(mXmppConnectionService.find(account, counterpart.asBareJid()), isTypeGroupChat, packet);
662 mXmppConnectionService.updateConversationUi();
663 }
664
665 if (mXmppConnectionService.confirmMessages()
666 && message.getStatus() == Message.STATUS_RECEIVED
667 && (message.trusted() || message.isPrivateMessage())
668 && remoteMsgId != null
669 && !selfAddressed
670 && !isTypeGroupChat) {
671 processMessageReceipts(account, packet, query);
672 }
673
674 mXmppConnectionService.databaseBackend.createMessage(message);
675 final HttpConnectionManager manager = this.mXmppConnectionService.getHttpConnectionManager();
676 if (message.trusted() && message.treatAsDownloadable() && manager.getAutoAcceptFileSize() > 0) {
677 manager.createNewDownloadConnection(message);
678 } else if (notify) {
679 if (query != null && query.isCatchup()) {
680 mXmppConnectionService.getNotificationService().pushFromBacklog(message);
681 } else {
682 mXmppConnectionService.getNotificationService().push(message);
683 }
684 }
685 } else if (!packet.hasChild("body")) { //no body
686
687 final Conversation conversation = mXmppConnectionService.find(account, from.asBareJid());
688 if (axolotlEncrypted != null) {
689 Jid origin;
690 if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
691 final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
692 origin = getTrueCounterpart(query != null ? mucUserElement : null, fallback);
693 if (origin == null) {
694 Log.d(Config.LOGTAG, "omemo key transport message in anonymous conference received");
695 return;
696 }
697 } else if (isTypeGroupChat) {
698 return;
699 } else {
700 origin = from;
701 }
702 try {
703 final XmppAxolotlMessage xmppAxolotlMessage = XmppAxolotlMessage.fromElement(axolotlEncrypted, origin.asBareJid());
704 account.getAxolotlService().processReceivingKeyTransportMessage(xmppAxolotlMessage, query != null);
705 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": omemo key transport message received from " + origin);
706 } catch (Exception e) {
707 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": invalid omemo key transport message received " + e.getMessage());
708 return;
709 }
710 }
711
712 if (query == null && extractChatState(mXmppConnectionService.find(account, counterpart.asBareJid()), isTypeGroupChat, packet)) {
713 mXmppConnectionService.updateConversationUi();
714 }
715
716 if (isTypeGroupChat) {
717 if (packet.hasChild("subject")) { //TODO usually we would want to check for lack of body; however some servers do set a body :(
718 if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
719 conversation.setHasMessagesLeftOnServer(conversation.countMessages() > 0);
720 final LocalizedContent subject = packet.findInternationalizedChildContentInDefaultNamespace("subject");
721 if (subject != null && conversation.getMucOptions().setSubject(subject.content)) {
722 mXmppConnectionService.updateConversation(conversation);
723 }
724 mXmppConnectionService.updateConversationUi();
725 return;
726 }
727 }
728 }
729 if (conversation != null && mucUserElement != null && InvalidJid.hasValidFrom(packet) && from.isBareJid()) {
730 for (Element child : mucUserElement.getChildren()) {
731 if ("status".equals(child.getName())) {
732 try {
733 int code = Integer.parseInt(child.getAttribute("code"));
734 if ((code >= 170 && code <= 174) || (code >= 102 && code <= 104)) {
735 mXmppConnectionService.fetchConferenceConfiguration(conversation);
736 break;
737 }
738 } catch (Exception e) {
739 //ignored
740 }
741 } else if ("item".equals(child.getName())) {
742 MucOptions.User user = AbstractParser.parseItem(conversation, child);
743 Log.d(Config.LOGTAG, account.getJid() + ": changing affiliation for "
744 + user.getRealJid() + " to " + user.getAffiliation() + " in "
745 + conversation.getJid().asBareJid());
746 if (!user.realJidMatchesAccount()) {
747 boolean isNew = conversation.getMucOptions().updateUser(user);
748 mXmppConnectionService.getAvatarService().clear(conversation);
749 mXmppConnectionService.updateMucRosterUi();
750 mXmppConnectionService.updateConversationUi();
751 Contact contact = user.getContact();
752 if (!user.getAffiliation().ranks(MucOptions.Affiliation.MEMBER)) {
753 Jid jid = user.getRealJid();
754 List<Jid> cryptoTargets = conversation.getAcceptedCryptoTargets();
755 if (cryptoTargets.remove(user.getRealJid())) {
756 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": removed " + jid + " from crypto targets of " + conversation.getName());
757 conversation.setAcceptedCryptoTargets(cryptoTargets);
758 mXmppConnectionService.updateConversation(conversation);
759 }
760 } else if (isNew
761 && user.getRealJid() != null
762 && conversation.getMucOptions().isPrivateAndNonAnonymous()
763 && (contact == null || !contact.mutualPresenceSubscription())
764 && account.getAxolotlService().hasEmptyDeviceList(user.getRealJid())) {
765 account.getAxolotlService().fetchDeviceIds(user.getRealJid());
766 }
767 }
768 }
769 }
770 }
771 }
772
773 Element received = packet.findChild("received", "urn:xmpp:chat-markers:0");
774 if (received == null) {
775 received = packet.findChild("received", "urn:xmpp:receipts");
776 }
777 if (received != null) {
778 String id = received.getAttribute("id");
779 if (packet.fromAccount(account)) {
780 if (query != null && id != null && packet.getTo() != null) {
781 query.removePendingReceiptRequest(new ReceiptRequest(packet.getTo(), id));
782 }
783 } else {
784 mXmppConnectionService.markMessage(account, from.asBareJid(), received.getAttribute("id"), Message.STATUS_SEND_RECEIVED);
785 }
786 }
787 Element displayed = packet.findChild("displayed", "urn:xmpp:chat-markers:0");
788 if (displayed != null) {
789 final String id = displayed.getAttribute("id");
790 final Jid sender = InvalidJid.getNullForInvalid(displayed.getAttributeAsJid("sender"));
791 if (packet.fromAccount(account) && !selfAddressed) {
792 dismissNotification(account, counterpart, query);
793 } else if (isTypeGroupChat) {
794 Conversation conversation = mXmppConnectionService.find(account, counterpart.asBareJid());
795 if (conversation != null && id != null && sender != null) {
796 Message message = conversation.findMessageWithRemoteId(id, sender);
797 if (message != null) {
798 final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
799 final Jid trueJid = getTrueCounterpart((query != null && query.safeToExtractTrueCounterpart()) ? mucUserElement : null, fallback);
800 final boolean trueJidMatchesAccount = account.getJid().asBareJid().equals(trueJid == null ? null : trueJid.asBareJid());
801 if (trueJidMatchesAccount || conversation.getMucOptions().isSelf(counterpart)) {
802 if (!message.isRead() && (query == null || query.isCatchup())) { //checking if message is unread fixes race conditions with reflections
803 mXmppConnectionService.markRead(conversation);
804 }
805 } else if (!counterpart.isBareJid() && trueJid != null) {
806 final ReadByMarker readByMarker = ReadByMarker.from(counterpart, trueJid);
807 if (message.addReadByMarker(readByMarker)) {
808 mXmppConnectionService.updateMessage(message, false);
809 }
810 }
811 }
812 }
813 } else {
814 final Message displayedMessage = mXmppConnectionService.markMessage(account, from.asBareJid(), id, Message.STATUS_SEND_DISPLAYED);
815 Message message = displayedMessage == null ? null : displayedMessage.prev();
816 while (message != null
817 && message.getStatus() == Message.STATUS_SEND_RECEIVED
818 && message.getTimeSent() < displayedMessage.getTimeSent()) {
819 mXmppConnectionService.markMessage(message, Message.STATUS_SEND_DISPLAYED);
820 message = message.prev();
821 }
822 if (displayedMessage != null && selfAddressed) {
823 dismissNotification(account, counterpart, query);
824 }
825 }
826 }
827
828 final Element event = original.findChild("event", "http://jabber.org/protocol/pubsub#event");
829 if (event != null && InvalidJid.hasValidFrom(original)) {
830 if (event.hasChild("items")) {
831 parseEvent(event, original.getFrom(), account);
832 } else if (event.hasChild("delete")) {
833 parseDeleteEvent(event, original.getFrom(), account);
834 }
835 }
836
837 final String nick = packet.findChildContent("nick", Namespace.NICK);
838 if (nick != null && InvalidJid.hasValidFrom(original)) {
839 Contact contact = account.getRoster().getContact(from);
840 if (contact.setPresenceName(nick)) {
841 mXmppConnectionService.getAvatarService().clear(contact);
842 }
843 }
844 }
845
846 private void dismissNotification(Account account, Jid counterpart, MessageArchiveService.Query query) {
847 Conversation conversation = mXmppConnectionService.find(account, counterpart.asBareJid());
848 if (conversation != null && (query == null || query.isCatchup())) {
849 mXmppConnectionService.markRead(conversation); //TODO only mark messages read that are older than timestamp
850 }
851 }
852
853 private void processMessageReceipts(Account account, MessagePacket packet, MessageArchiveService.Query query) {
854 final boolean markable = packet.hasChild("markable", "urn:xmpp:chat-markers:0");
855 final boolean request = packet.hasChild("request", "urn:xmpp:receipts");
856 if (query == null) {
857 final ArrayList<String> receiptsNamespaces = new ArrayList<>();
858 if (markable) {
859 receiptsNamespaces.add("urn:xmpp:chat-markers:0");
860 }
861 if (request) {
862 receiptsNamespaces.add("urn:xmpp:receipts");
863 }
864 if (receiptsNamespaces.size() > 0) {
865 MessagePacket receipt = mXmppConnectionService.getMessageGenerator().received(account,
866 packet,
867 receiptsNamespaces,
868 packet.getType());
869 mXmppConnectionService.sendMessagePacket(account, receipt);
870 }
871 } else if (query.isCatchup()) {
872 if (request) {
873 query.addPendingReceiptRequest(new ReceiptRequest(packet.getFrom(), packet.getId()));
874 }
875 }
876 }
877
878 private void activateGracePeriod(Account account) {
879 long duration = mXmppConnectionService.getLongPreference("grace_period_length", R.integer.grace_period) * 1000;
880 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": activating grace period till " + TIME_FORMAT.format(new Date(System.currentTimeMillis() + duration)));
881 account.activateGracePeriod(duration);
882 }
883
884 private class Invite {
885 final Jid jid;
886 final String password;
887 final Contact inviter;
888
889 Invite(Jid jid, String password, Contact inviter) {
890 this.jid = jid;
891 this.password = password;
892 this.inviter = inviter;
893 }
894
895 public boolean execute(Account account) {
896 if (jid != null) {
897 Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, jid, true, false);
898 if (conversation.getMucOptions().online()) {
899 Log.d(Config.LOGTAG,account.getJid().asBareJid()+": received invite to "+jid+" but muc is considered to be online");
900 mXmppConnectionService.mucSelfPingAndRejoin(conversation);
901 } else {
902 conversation.getMucOptions().setPassword(password);
903 mXmppConnectionService.databaseBackend.updateConversation(conversation);
904 mXmppConnectionService.joinMuc(conversation, inviter != null && inviter.mutualPresenceSubscription());
905 mXmppConnectionService.updateConversationUi();
906 }
907 return true;
908 }
909 return false;
910 }
911 }
912}