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