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.Arrays;
10import java.util.Collections;
11import java.util.Date;
12import java.util.List;
13import java.util.Locale;
14import java.util.Map;
15import java.util.Set;
16import java.util.UUID;
17
18import eu.siacs.conversations.Config;
19import eu.siacs.conversations.R;
20import eu.siacs.conversations.crypto.axolotl.AxolotlService;
21import eu.siacs.conversations.crypto.axolotl.BrokenSessionException;
22import eu.siacs.conversations.crypto.axolotl.NotEncryptedForThisDeviceException;
23import eu.siacs.conversations.crypto.axolotl.OutdatedSenderException;
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.Conversational;
30import eu.siacs.conversations.entities.Message;
31import eu.siacs.conversations.entities.MucOptions;
32import eu.siacs.conversations.entities.ReadByMarker;
33import eu.siacs.conversations.entities.ReceiptRequest;
34import eu.siacs.conversations.http.HttpConnectionManager;
35import eu.siacs.conversations.http.P1S3UrlStreamHandler;
36import eu.siacs.conversations.services.MessageArchiveService;
37import eu.siacs.conversations.services.QuickConversationsService;
38import eu.siacs.conversations.services.XmppConnectionService;
39import eu.siacs.conversations.utils.CryptoHelper;
40import eu.siacs.conversations.xml.LocalizedContent;
41import eu.siacs.conversations.xml.Namespace;
42import eu.siacs.conversations.xml.Element;
43import eu.siacs.conversations.xmpp.InvalidJid;
44import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
45import eu.siacs.conversations.xmpp.chatstate.ChatState;
46import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
47import eu.siacs.conversations.xmpp.jingle.JingleRtpConnection;
48import eu.siacs.conversations.xmpp.pep.Avatar;
49import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
50import rocks.xmpp.addr.Jid;
51
52public class MessageParser extends AbstractParser implements OnMessagePacketReceived {
53
54 private static final SimpleDateFormat TIME_FORMAT = new SimpleDateFormat("HH:mm:ss", Locale.ENGLISH);
55
56 private static final List<String> JINGLE_MESSAGE_ELEMENT_NAMES = Arrays.asList("accept", "propose", "proceed", "reject", "retract");
57
58 public MessageParser(XmppConnectionService service) {
59 super(service);
60 }
61
62 private static String extractStanzaId(Element packet, boolean isTypeGroupChat, Conversation conversation) {
63 final Jid by;
64 final boolean safeToExtract;
65 if (isTypeGroupChat) {
66 by = conversation.getJid().asBareJid();
67 safeToExtract = conversation.getMucOptions().hasFeature(Namespace.STANZA_IDS);
68 } else {
69 Account account = conversation.getAccount();
70 by = account.getJid().asBareJid();
71 safeToExtract = account.getXmppConnection().getFeatures().stanzaIds();
72 }
73 return safeToExtract ? extractStanzaId(packet, by) : null;
74 }
75
76 private static String extractStanzaId(Element packet, Jid by) {
77 for (Element child : packet.getChildren()) {
78 if (child.getName().equals("stanza-id")
79 && Namespace.STANZA_IDS.equals(child.getNamespace())
80 && by.equals(InvalidJid.getNullForInvalid(child.getAttributeAsJid("by")))) {
81 return child.getAttribute("id");
82 }
83 }
84 return null;
85 }
86
87 private static Jid getTrueCounterpart(Element mucUserElement, Jid fallback) {
88 final Element item = mucUserElement == null ? null : mucUserElement.findChild("item");
89 Jid result = item == null ? null : InvalidJid.getNullForInvalid(item.getAttributeAsJid("jid"));
90 return result != null ? result : fallback;
91 }
92
93 private boolean extractChatState(Conversation c, final boolean isTypeGroupChat, final MessagePacket packet) {
94 ChatState state = ChatState.parse(packet);
95 if (state != null && c != null) {
96 final Account account = c.getAccount();
97 Jid from = packet.getFrom();
98 if (from.asBareJid().equals(account.getJid().asBareJid())) {
99 c.setOutgoingChatState(state);
100 if (state == ChatState.ACTIVE || state == ChatState.COMPOSING) {
101 mXmppConnectionService.markRead(c);
102 activateGracePeriod(account);
103 }
104 return false;
105 } else {
106 if (isTypeGroupChat) {
107 MucOptions.User user = c.getMucOptions().findUserByFullJid(from);
108 if (user != null) {
109 return user.setChatState(state);
110 } else {
111 return false;
112 }
113 } else {
114 return c.setIncomingChatState(state);
115 }
116 }
117 }
118 return false;
119 }
120
121 private Message parseAxolotlChat(Element axolotlMessage, Jid from, Conversation conversation, int status, final boolean checkedForDuplicates, boolean postpone) {
122 final AxolotlService service = conversation.getAccount().getAxolotlService();
123 final XmppAxolotlMessage xmppAxolotlMessage;
124 try {
125 xmppAxolotlMessage = XmppAxolotlMessage.fromElement(axolotlMessage, from.asBareJid());
126 } catch (Exception e) {
127 Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": invalid omemo message received " + e.getMessage());
128 return null;
129 }
130 if (xmppAxolotlMessage.hasPayload()) {
131 final XmppAxolotlMessage.XmppAxolotlPlaintextMessage plaintextMessage;
132 try {
133 plaintextMessage = service.processReceivingPayloadMessage(xmppAxolotlMessage, postpone);
134 } catch (BrokenSessionException e) {
135 if (checkedForDuplicates) {
136 if (service.trustedOrPreviouslyResponded(from.asBareJid())) {
137 service.reportBrokenSessionException(e, postpone);
138 return new Message(conversation, "", Message.ENCRYPTION_AXOLOTL_FAILED, status);
139 } else {
140 Log.d(Config.LOGTAG, "ignoring broken session exception because contact was not trusted");
141 return new Message(conversation, "", Message.ENCRYPTION_AXOLOTL_FAILED, status);
142 }
143 } else {
144 Log.d(Config.LOGTAG, "ignoring broken session exception because checkForDuplicates failed");
145 return null;
146 }
147 } catch (NotEncryptedForThisDeviceException e) {
148 return new Message(conversation, "", Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE, status);
149 } catch (OutdatedSenderException e) {
150 return new Message(conversation, "", Message.ENCRYPTION_AXOLOTL_FAILED, status);
151 }
152 if (plaintextMessage != null) {
153 Message finishedMessage = new Message(conversation, plaintextMessage.getPlaintext(), Message.ENCRYPTION_AXOLOTL, status);
154 finishedMessage.setFingerprint(plaintextMessage.getFingerprint());
155 Log.d(Config.LOGTAG, AxolotlService.getLogprefix(finishedMessage.getConversation().getAccount()) + " Received Message with session fingerprint: " + plaintextMessage.getFingerprint());
156 return finishedMessage;
157 }
158 } else {
159 Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": received OMEMO key transport message");
160 service.processReceivingKeyTransportMessage(xmppAxolotlMessage, postpone);
161 }
162 return null;
163 }
164
165 private Invite extractInvite(Element message) {
166 final Element mucUser = message.findChild("x", Namespace.MUC_USER);
167 if (mucUser != null) {
168 Element invite = mucUser.findChild("invite");
169 if (invite != null) {
170 String password = mucUser.findChildContent("password");
171 Jid from = InvalidJid.getNullForInvalid(invite.getAttributeAsJid("from"));
172 Jid room = InvalidJid.getNullForInvalid(message.getAttributeAsJid("from"));
173 if (room == null) {
174 return null;
175 }
176 return new Invite(room, password, false, from);
177 }
178 }
179 final Element conference = message.findChild("x", "jabber:x:conference");
180 if (conference != null) {
181 Jid from = InvalidJid.getNullForInvalid(message.getAttributeAsJid("from"));
182 Jid room = InvalidJid.getNullForInvalid(conference.getAttributeAsJid("jid"));
183 if (room == null) {
184 return null;
185 }
186 return new Invite(room, conference.getAttribute("password"), true, from);
187 }
188 return null;
189 }
190
191 private void parseEvent(final Element event, final Jid from, final Account account) {
192 Element items = event.findChild("items");
193 String node = items == null ? null : items.getAttribute("node");
194 if ("urn:xmpp:avatar:metadata".equals(node)) {
195 Avatar avatar = Avatar.parseMetadata(items);
196 if (avatar != null) {
197 avatar.owner = from.asBareJid();
198 if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
199 if (account.getJid().asBareJid().equals(from)) {
200 if (account.setAvatar(avatar.getFilename())) {
201 mXmppConnectionService.databaseBackend.updateAccount(account);
202 mXmppConnectionService.notifyAccountAvatarHasChanged(account);
203 }
204 mXmppConnectionService.getAvatarService().clear(account);
205 mXmppConnectionService.updateConversationUi();
206 mXmppConnectionService.updateAccountUi();
207 } else {
208 Contact contact = account.getRoster().getContact(from);
209 if (contact.setAvatar(avatar)) {
210 mXmppConnectionService.syncRoster(account);
211 mXmppConnectionService.getAvatarService().clear(contact);
212 mXmppConnectionService.updateConversationUi();
213 mXmppConnectionService.updateRosterUi();
214 }
215 }
216 } else if (mXmppConnectionService.isDataSaverDisabled()) {
217 mXmppConnectionService.fetchAvatar(account, avatar);
218 }
219 }
220 } else if (Namespace.NICK.equals(node)) {
221 final Element i = items.findChild("item");
222 final String nick = i == null ? null : i.findChildContent("nick", Namespace.NICK);
223 if (nick != null) {
224 setNick(account, from, nick);
225 }
226 } else if (AxolotlService.PEP_DEVICE_LIST.equals(node)) {
227 Element item = items.findChild("item");
228 Set<Integer> deviceIds = mXmppConnectionService.getIqParser().deviceIds(item);
229 Log.d(Config.LOGTAG, AxolotlService.getLogprefix(account) + "Received PEP device list " + deviceIds + " update from " + from + ", processing... ");
230 AxolotlService axolotlService = account.getAxolotlService();
231 axolotlService.registerDevices(from, deviceIds);
232 } else if (Namespace.BOOKMARKS.equals(node) && account.getJid().asBareJid().equals(from)) {
233 if (account.getXmppConnection().getFeatures().bookmarksConversion()) {
234 final Element i = items.findChild("item");
235 final Element storage = i == null ? null : i.findChild("storage", Namespace.BOOKMARKS);
236 Map<Jid, Bookmark> bookmarks = Bookmark.parseFromStorage(storage, account);
237 mXmppConnectionService.processBookmarksInitial(account, bookmarks, true);
238 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": processing bookmark PEP event");
239 } else {
240 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": ignoring bookmark PEP event because bookmark conversion was not detected");
241 }
242 } else if (Namespace.BOOKMARKS2.equals(node) && account.getJid().asBareJid().equals(from)) {
243 final Element item = items.findChild("item");
244 final Element retract = items.findChild("retract");
245 if (item != null) {
246 final Bookmark bookmark = Bookmark.parseFromItem(item, account);
247 if (bookmark != null) {
248 account.putBookmark(bookmark);
249 mXmppConnectionService.processModifiedBookmark(bookmark);
250 mXmppConnectionService.updateConversationUi();
251 }
252 }
253 if (retract != null) {
254 final Jid id = InvalidJid.getNullForInvalid(retract.getAttributeAsJid("id"));
255 if (id != null) {
256 account.removeBookmark(id);
257 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": deleted bookmark for " + id);
258 mXmppConnectionService.processDeletedBookmark(account, id);
259 mXmppConnectionService.updateConversationUi();
260 }
261 }
262 } else {
263 Log.d(Config.LOGTAG, account.getJid().asBareJid() + " received pubsub notification for node=" + node);
264 }
265 }
266
267 private void parseDeleteEvent(final Element event, final Jid from, final Account account) {
268 final Element delete = event.findChild("delete");
269 final String node = delete == null ? null : delete.getAttribute("node");
270 if (Namespace.NICK.equals(node)) {
271 Log.d(Config.LOGTAG, "parsing nick delete event from " + from);
272 setNick(account, from, null);
273 } else if (Namespace.BOOKMARKS2.equals(node) && account.getJid().asBareJid().equals(from)) {
274 account.setBookmarks(Collections.emptyMap());
275 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": deleted bookmarks node");
276 }
277 }
278
279 private void parsePurgeEvent(final Element event, final Jid from, final Account account) {
280 final Element purge = event.findChild("purge");
281 final String node = purge == null ? null : purge.getAttribute("node");
282 if (Namespace.BOOKMARKS2.equals(node) && account.getJid().asBareJid().equals(from)) {
283 account.setBookmarks(Collections.emptyMap());
284 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": purged bookmarks");
285 }
286 }
287
288 private void setNick(Account account, Jid user, String nick) {
289 if (user.asBareJid().equals(account.getJid().asBareJid())) {
290 account.setDisplayName(nick);
291 if (QuickConversationsService.isQuicksy()) {
292 mXmppConnectionService.getAvatarService().clear(account);
293 }
294 } else {
295 Contact contact = account.getRoster().getContact(user);
296 if (contact.setPresenceName(nick)) {
297 mXmppConnectionService.getAvatarService().clear(contact);
298 }
299 }
300 mXmppConnectionService.updateConversationUi();
301 mXmppConnectionService.updateAccountUi();
302 }
303
304 private boolean handleErrorMessage(Account account, MessagePacket packet) {
305 if (packet.getType() == MessagePacket.TYPE_ERROR) {
306 final Jid from = packet.getFrom();
307 final String id = packet.getId();
308 if (from != null && id != null) {
309 if (id.startsWith(JingleRtpConnection.JINGLE_MESSAGE_ID_PREFIX)) {
310 final String sessionId = id.substring(JingleRtpConnection.JINGLE_MESSAGE_ID_PREFIX.length());
311 mXmppConnectionService.getJingleConnectionManager()
312 .updateProposedSessionDiscovered(account, from, sessionId, JingleConnectionManager.DeviceDiscoveryState.FAILED);
313 return true;
314 }
315 mXmppConnectionService.markMessage(account,
316 from.asBareJid(),
317 id,
318 Message.STATUS_SEND_FAILED,
319 extractErrorMessage(packet));
320 final Element error = packet.findChild("error");
321 final boolean pingWorthyError = error != null && (error.hasChild("not-acceptable") || error.hasChild("remote-server-timeout") || error.hasChild("remote-server-not-found"));
322 if (pingWorthyError) {
323 Conversation conversation = mXmppConnectionService.find(account, from);
324 if (conversation != null && conversation.getMode() == Conversational.MODE_MULTI) {
325 if (conversation.getMucOptions().online()) {
326 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received ping worthy error for seemingly online muc at " + from);
327 mXmppConnectionService.mucSelfPingAndRejoin(conversation);
328 }
329 }
330 }
331 }
332 return true;
333 }
334 return false;
335 }
336
337 @Override
338 public void onMessagePacketReceived(Account account, MessagePacket original) {
339 if (handleErrorMessage(account, original)) {
340 return;
341 }
342 final MessagePacket packet;
343 Long timestamp = null;
344 boolean isCarbon = false;
345 String serverMsgId = null;
346 final Element fin = original.findChild("fin", MessageArchiveService.Version.MAM_0.namespace);
347 if (fin != null) {
348 mXmppConnectionService.getMessageArchiveService().processFinLegacy(fin, original.getFrom());
349 return;
350 }
351 final Element result = MessageArchiveService.Version.findResult(original);
352 final MessageArchiveService.Query query = result == null ? null : mXmppConnectionService.getMessageArchiveService().findQuery(result.getAttribute("queryid"));
353 if (query != null && query.validFrom(original.getFrom())) {
354 Pair<MessagePacket, Long> f = original.getForwardedMessagePacket("result", query.version.namespace);
355 if (f == null) {
356 return;
357 }
358 timestamp = f.second;
359 packet = f.first;
360 serverMsgId = result.getAttribute("id");
361 query.incrementMessageCount();
362 } else if (query != null) {
363 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received mam result from invalid sender");
364 return;
365 } else if (original.fromServer(account)) {
366 Pair<MessagePacket, Long> f;
367 f = original.getForwardedMessagePacket("received", "urn:xmpp:carbons:2");
368 f = f == null ? original.getForwardedMessagePacket("sent", "urn:xmpp:carbons:2") : f;
369 packet = f != null ? f.first : original;
370 if (handleErrorMessage(account, packet)) {
371 return;
372 }
373 timestamp = f != null ? f.second : null;
374 isCarbon = f != null;
375 } else {
376 packet = original;
377 }
378
379 if (timestamp == null) {
380 timestamp = AbstractParser.parseTimestamp(original, AbstractParser.parseTimestamp(packet));
381 }
382 final LocalizedContent body = packet.getBody();
383 final Element mucUserElement = packet.findChild("x", Namespace.MUC_USER);
384 final String pgpEncrypted = packet.findChildContent("x", "jabber:x:encrypted");
385 final Element replaceElement = packet.findChild("replace", "urn:xmpp:message-correct:0");
386 final Element oob = packet.findChild("x", Namespace.OOB);
387 final Element xP1S3 = packet.findChild("x", Namespace.P1_S3_FILE_TRANSFER);
388 final URL xP1S3url = xP1S3 == null ? null : P1S3UrlStreamHandler.of(xP1S3);
389 final String oobUrl = oob != null ? oob.findChildContent("url") : null;
390 final String replacementId = replaceElement == null ? null : replaceElement.getAttribute("id");
391 final Element axolotlEncrypted = packet.findChildEnsureSingle(XmppAxolotlMessage.CONTAINERTAG, AxolotlService.PEP_PREFIX);
392 int status;
393 final Jid counterpart;
394 final Jid to = packet.getTo();
395 final Jid from = packet.getFrom();
396 final Element originId = packet.findChild("origin-id", Namespace.STANZA_IDS);
397 final String remoteMsgId;
398 if (originId != null && originId.getAttribute("id") != null) {
399 remoteMsgId = originId.getAttribute("id");
400 } else {
401 remoteMsgId = packet.getId();
402 }
403 boolean notify = false;
404
405 if (from == null || !InvalidJid.isValid(from) || !InvalidJid.isValid(to)) {
406 Log.e(Config.LOGTAG, "encountered invalid message from='" + from + "' to='" + to + "'");
407 return;
408 }
409
410 boolean isTypeGroupChat = packet.getType() == MessagePacket.TYPE_GROUPCHAT;
411 if (query != null && !query.muc() && isTypeGroupChat) {
412 Log.e(Config.LOGTAG, account.getJid().asBareJid() + ": received groupchat (" + from + ") message on regular MAM request. skipping");
413 return;
414 }
415 boolean isMucStatusMessage = InvalidJid.hasValidFrom(packet) && from.isBareJid() && mucUserElement != null && mucUserElement.hasChild("status");
416 boolean selfAddressed;
417 if (packet.fromAccount(account)) {
418 status = Message.STATUS_SEND;
419 selfAddressed = to == null || account.getJid().asBareJid().equals(to.asBareJid());
420 if (selfAddressed) {
421 counterpart = from;
422 } else {
423 counterpart = to != null ? to : account.getJid();
424 }
425 } else {
426 status = Message.STATUS_RECEIVED;
427 counterpart = from;
428 selfAddressed = false;
429 }
430
431 final Invite invite = extractInvite(packet);
432 if (invite != null) {
433 if (isTypeGroupChat) {
434 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": ignoring invite to " + invite.jid + " because type=groupchat");
435 } else if (invite.direct && (mucUserElement != null || invite.inviter == null || mXmppConnectionService.isMuc(account, invite.inviter))) {
436 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": ignoring direct invite to " + invite.jid + " because it was received in MUC");
437 } else {
438 invite.execute(account);
439 return;
440 }
441 }
442
443 if ((body != null || pgpEncrypted != null || (axolotlEncrypted != null && axolotlEncrypted.hasChild("payload")) || oobUrl != null || xP1S3 != null) && !isMucStatusMessage) {
444 final boolean conversationIsProbablyMuc = isTypeGroupChat || mucUserElement != null || account.getXmppConnection().getMucServersWithholdAccount().contains(counterpart.getDomain());
445 final Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, counterpart.asBareJid(), conversationIsProbablyMuc, false, query, false);
446 final boolean conversationMultiMode = conversation.getMode() == Conversation.MODE_MULTI;
447
448 if (serverMsgId == null) {
449 serverMsgId = extractStanzaId(packet, isTypeGroupChat, conversation);
450 }
451
452
453 if (selfAddressed) {
454 if (mXmppConnectionService.markMessage(conversation, remoteMsgId, Message.STATUS_SEND_RECEIVED, serverMsgId)) {
455 return;
456 }
457 status = Message.STATUS_RECEIVED;
458 if (remoteMsgId != null && conversation.findMessageWithRemoteId(remoteMsgId, counterpart) != null) {
459 return;
460 }
461 }
462
463 if (isTypeGroupChat) {
464 if (conversation.getMucOptions().isSelf(counterpart)) {
465 status = Message.STATUS_SEND_RECEIVED;
466 isCarbon = true; //not really carbon but received from another resource
467 //TODO this would be the place to change the body after something like mod_pastebin
468 if (mXmppConnectionService.markMessage(conversation, remoteMsgId, status, serverMsgId)) {
469 return;
470 } else if (remoteMsgId == null || Config.IGNORE_ID_REWRITE_IN_MUC) {
471 LocalizedContent localizedBody = packet.getBody();
472 if (localizedBody != null) {
473 Message message = conversation.findSentMessageWithBody(localizedBody.content);
474 if (message != null) {
475 mXmppConnectionService.markMessage(message, status);
476 return;
477 }
478 }
479 }
480 } else {
481 status = Message.STATUS_RECEIVED;
482 }
483 }
484 final Message message;
485 if (xP1S3url != null) {
486 message = new Message(conversation, xP1S3url.toString(), Message.ENCRYPTION_NONE, status);
487 message.setOob(true);
488 if (CryptoHelper.isPgpEncryptedUrl(xP1S3url.toString())) {
489 message.setEncryption(Message.ENCRYPTION_DECRYPTED);
490 }
491 } else if (pgpEncrypted != null && Config.supportOpenPgp()) {
492 message = new Message(conversation, pgpEncrypted, Message.ENCRYPTION_PGP, status);
493 } else if (axolotlEncrypted != null && Config.supportOmemo()) {
494 Jid origin;
495 Set<Jid> fallbacksBySourceId = Collections.emptySet();
496 if (conversationMultiMode) {
497 final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
498 origin = getTrueCounterpart(query != null ? mucUserElement : null, fallback);
499 if (origin == null) {
500 try {
501 fallbacksBySourceId = account.getAxolotlService().findCounterpartsBySourceId(XmppAxolotlMessage.parseSourceId(axolotlEncrypted));
502 } catch (IllegalArgumentException e) {
503 //ignoring
504 }
505 }
506 if (origin == null && fallbacksBySourceId.size() == 0) {
507 Log.d(Config.LOGTAG, "axolotl message in anonymous conference received and no possible fallbacks");
508 return;
509 }
510 } else {
511 fallbacksBySourceId = Collections.emptySet();
512 origin = from;
513 }
514
515 final boolean liveMessage = query == null && !isTypeGroupChat && mucUserElement == null;
516 final boolean checkedForDuplicates = liveMessage || (serverMsgId != null && remoteMsgId != null && !conversation.possibleDuplicate(serverMsgId, remoteMsgId));
517
518 if (origin != null) {
519 message = parseAxolotlChat(axolotlEncrypted, origin, conversation, status, checkedForDuplicates, query != null);
520 } else {
521 Message trial = null;
522 for (Jid fallback : fallbacksBySourceId) {
523 trial = parseAxolotlChat(axolotlEncrypted, fallback, conversation, status, checkedForDuplicates && fallbacksBySourceId.size() == 1, query != null);
524 if (trial != null) {
525 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": decoded muc message using fallback");
526 origin = fallback;
527 break;
528 }
529 }
530 message = trial;
531 }
532 if (message == null) {
533 if (query == null && extractChatState(mXmppConnectionService.find(account, counterpart.asBareJid()), isTypeGroupChat, packet)) {
534 mXmppConnectionService.updateConversationUi();
535 }
536 if (query != null && status == Message.STATUS_SEND && remoteMsgId != null) {
537 Message previouslySent = conversation.findSentMessageWithUuid(remoteMsgId);
538 if (previouslySent != null && previouslySent.getServerMsgId() == null && serverMsgId != null) {
539 previouslySent.setServerMsgId(serverMsgId);
540 mXmppConnectionService.databaseBackend.updateMessage(previouslySent, false);
541 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": encountered previously sent OMEMO message without serverId. updating...");
542 }
543 }
544 return;
545 }
546 if (conversationMultiMode) {
547 message.setTrueCounterpart(origin);
548 }
549 } else if (body == null && oobUrl != null) {
550 message = new Message(conversation, oobUrl, Message.ENCRYPTION_NONE, status);
551 message.setOob(true);
552 if (CryptoHelper.isPgpEncryptedUrl(oobUrl)) {
553 message.setEncryption(Message.ENCRYPTION_DECRYPTED);
554 }
555 } else {
556 message = new Message(conversation, body.content, Message.ENCRYPTION_NONE, status);
557 if (body.count > 1) {
558 message.setBodyLanguage(body.language);
559 }
560 }
561
562 message.setCounterpart(counterpart);
563 message.setRemoteMsgId(remoteMsgId);
564 message.setServerMsgId(serverMsgId);
565 message.setCarbon(isCarbon);
566 message.setTime(timestamp);
567 if (body != null && body.content != null && body.content.equals(oobUrl)) {
568 message.setOob(true);
569 if (CryptoHelper.isPgpEncryptedUrl(oobUrl)) {
570 message.setEncryption(Message.ENCRYPTION_DECRYPTED);
571 }
572 }
573 message.markable = packet.hasChild("markable", "urn:xmpp:chat-markers:0");
574 if (conversationMultiMode) {
575 message.setMucUser(conversation.getMucOptions().findUserByFullJid(counterpart));
576 final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
577 Jid trueCounterpart;
578 if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL) {
579 trueCounterpart = message.getTrueCounterpart();
580 } else if (query != null && query.safeToExtractTrueCounterpart()) {
581 trueCounterpart = getTrueCounterpart(mucUserElement, fallback);
582 } else {
583 trueCounterpart = fallback;
584 }
585 if (trueCounterpart != null && isTypeGroupChat) {
586 if (trueCounterpart.asBareJid().equals(account.getJid().asBareJid())) {
587 status = isTypeGroupChat ? Message.STATUS_SEND_RECEIVED : Message.STATUS_SEND;
588 } else {
589 status = Message.STATUS_RECEIVED;
590 message.setCarbon(false);
591 }
592 }
593 message.setStatus(status);
594 message.setTrueCounterpart(trueCounterpart);
595 if (!isTypeGroupChat) {
596 message.setType(Message.TYPE_PRIVATE);
597 }
598 } else {
599 updateLastseen(account, from);
600 }
601
602 if (replacementId != null && mXmppConnectionService.allowMessageCorrection()) {
603 final Message replacedMessage = conversation.findMessageWithRemoteIdAndCounterpart(replacementId,
604 counterpart,
605 message.getStatus() == Message.STATUS_RECEIVED,
606 message.isCarbon());
607 if (replacedMessage != null) {
608 final boolean fingerprintsMatch = replacedMessage.getFingerprint() == null
609 || replacedMessage.getFingerprint().equals(message.getFingerprint());
610 final boolean trueCountersMatch = replacedMessage.getTrueCounterpart() != null
611 && message.getTrueCounterpart() != null
612 && replacedMessage.getTrueCounterpart().asBareJid().equals(message.getTrueCounterpart().asBareJid());
613 final boolean mucUserMatches = query == null && replacedMessage.sameMucUser(message); //can not be checked when using mam
614 final boolean duplicate = conversation.hasDuplicateMessage(message);
615 if (fingerprintsMatch && (trueCountersMatch || !conversationMultiMode || mucUserMatches) && !duplicate) {
616 Log.d(Config.LOGTAG, "replaced message '" + replacedMessage.getBody() + "' with '" + message.getBody() + "'");
617 synchronized (replacedMessage) {
618 final String uuid = replacedMessage.getUuid();
619 replacedMessage.setUuid(UUID.randomUUID().toString());
620 replacedMessage.setBody(message.getBody());
621 replacedMessage.putEdited(replacedMessage.getRemoteMsgId(), replacedMessage.getServerMsgId());
622 replacedMessage.setRemoteMsgId(remoteMsgId);
623 if (replacedMessage.getServerMsgId() == null || message.getServerMsgId() != null) {
624 replacedMessage.setServerMsgId(message.getServerMsgId());
625 }
626 replacedMessage.setEncryption(message.getEncryption());
627 if (replacedMessage.getStatus() == Message.STATUS_RECEIVED) {
628 replacedMessage.markUnread();
629 }
630 extractChatState(mXmppConnectionService.find(account, counterpart.asBareJid()), isTypeGroupChat, packet);
631 mXmppConnectionService.updateMessage(replacedMessage, uuid);
632 if (mXmppConnectionService.confirmMessages()
633 && replacedMessage.getStatus() == Message.STATUS_RECEIVED
634 && (replacedMessage.trusted() || replacedMessage.isPrivateMessage()) //TODO do we really want to send receipts for all PMs?
635 && remoteMsgId != null
636 && !selfAddressed
637 && !isTypeGroupChat) {
638 processMessageReceipts(account, packet, query);
639 }
640 if (replacedMessage.getEncryption() == Message.ENCRYPTION_PGP) {
641 conversation.getAccount().getPgpDecryptionService().discard(replacedMessage);
642 conversation.getAccount().getPgpDecryptionService().decrypt(replacedMessage, false);
643 }
644 }
645 mXmppConnectionService.getNotificationService().updateNotification();
646 return;
647 } else {
648 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received message correction but verification didn't check out");
649 }
650 }
651 }
652
653 long deletionDate = mXmppConnectionService.getAutomaticMessageDeletionDate();
654 if (deletionDate != 0 && message.getTimeSent() < deletionDate) {
655 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": skipping message from " + message.getCounterpart().toString() + " because it was sent prior to our deletion date");
656 return;
657 }
658
659 boolean checkForDuplicates = (isTypeGroupChat && packet.hasChild("delay", "urn:xmpp:delay"))
660 || message.isPrivateMessage()
661 || message.getServerMsgId() != null
662 || (query == null && mXmppConnectionService.getMessageArchiveService().isCatchupInProgress(conversation));
663 if (checkForDuplicates) {
664 final Message duplicate = conversation.findDuplicateMessage(message);
665 if (duplicate != null) {
666 final boolean serverMsgIdUpdated;
667 if (duplicate.getStatus() != Message.STATUS_RECEIVED
668 && duplicate.getUuid().equals(message.getRemoteMsgId())
669 && duplicate.getServerMsgId() == null
670 && message.getServerMsgId() != null) {
671 duplicate.setServerMsgId(message.getServerMsgId());
672 if (mXmppConnectionService.databaseBackend.updateMessage(duplicate, false)) {
673 serverMsgIdUpdated = true;
674 } else {
675 serverMsgIdUpdated = false;
676 Log.e(Config.LOGTAG, "failed to update message");
677 }
678 } else {
679 serverMsgIdUpdated = false;
680 }
681 Log.d(Config.LOGTAG, "skipping duplicate message with " + message.getCounterpart() + ". serverMsgIdUpdated=" + serverMsgIdUpdated);
682 return;
683 }
684 }
685
686 if (query != null && query.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
687 conversation.prepend(query.getActualInThisQuery(), message);
688 } else {
689 conversation.add(message);
690 }
691 if (query != null) {
692 query.incrementActualMessageCount();
693 }
694
695 if (query == null || query.isCatchup()) { //either no mam or catchup
696 if (status == Message.STATUS_SEND || status == Message.STATUS_SEND_RECEIVED) {
697 mXmppConnectionService.markRead(conversation);
698 if (query == null) {
699 activateGracePeriod(account);
700 }
701 } else {
702 message.markUnread();
703 notify = true;
704 }
705 }
706
707 if (message.getEncryption() == Message.ENCRYPTION_PGP) {
708 notify = conversation.getAccount().getPgpDecryptionService().decrypt(message, notify);
709 } else if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL_NOT_FOR_THIS_DEVICE || message.getEncryption() == Message.ENCRYPTION_AXOLOTL_FAILED) {
710 notify = false;
711 }
712
713 if (query == null) {
714 extractChatState(mXmppConnectionService.find(account, counterpart.asBareJid()), isTypeGroupChat, packet);
715 mXmppConnectionService.updateConversationUi();
716 }
717
718 if (mXmppConnectionService.confirmMessages()
719 && message.getStatus() == Message.STATUS_RECEIVED
720 && (message.trusted() || message.isPrivateMessage())
721 && remoteMsgId != null
722 && !selfAddressed
723 && !isTypeGroupChat) {
724 processMessageReceipts(account, packet, query);
725 }
726
727 mXmppConnectionService.databaseBackend.createMessage(message);
728 final HttpConnectionManager manager = this.mXmppConnectionService.getHttpConnectionManager();
729 if (message.trusted() && message.treatAsDownloadable() && manager.getAutoAcceptFileSize() > 0) {
730 manager.createNewDownloadConnection(message);
731 } else if (notify) {
732 if (query != null && query.isCatchup()) {
733 mXmppConnectionService.getNotificationService().pushFromBacklog(message);
734 } else {
735 mXmppConnectionService.getNotificationService().push(message);
736 }
737 }
738 } else if (!packet.hasChild("body")) { //no body
739
740 final Conversation conversation = mXmppConnectionService.find(account, from.asBareJid());
741 if (axolotlEncrypted != null) {
742 Jid origin;
743 if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
744 final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
745 origin = getTrueCounterpart(query != null ? mucUserElement : null, fallback);
746 if (origin == null) {
747 Log.d(Config.LOGTAG, "omemo key transport message in anonymous conference received");
748 return;
749 }
750 } else if (isTypeGroupChat) {
751 return;
752 } else {
753 origin = from;
754 }
755 try {
756 final XmppAxolotlMessage xmppAxolotlMessage = XmppAxolotlMessage.fromElement(axolotlEncrypted, origin.asBareJid());
757 account.getAxolotlService().processReceivingKeyTransportMessage(xmppAxolotlMessage, query != null);
758 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": omemo key transport message received from " + origin);
759 } catch (Exception e) {
760 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": invalid omemo key transport message received " + e.getMessage());
761 return;
762 }
763 }
764
765 if (query == null && extractChatState(mXmppConnectionService.find(account, counterpart.asBareJid()), isTypeGroupChat, packet)) {
766 mXmppConnectionService.updateConversationUi();
767 }
768
769 if (isTypeGroupChat) {
770 if (packet.hasChild("subject")) { //TODO usually we would want to check for lack of body; however some servers do set a body :(
771 if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
772 conversation.setHasMessagesLeftOnServer(conversation.countMessages() > 0);
773 final LocalizedContent subject = packet.findInternationalizedChildContentInDefaultNamespace("subject");
774 if (subject != null && conversation.getMucOptions().setSubject(subject.content)) {
775 mXmppConnectionService.updateConversation(conversation);
776 }
777 mXmppConnectionService.updateConversationUi();
778 return;
779 }
780 }
781 }
782 if (conversation != null && mucUserElement != null && InvalidJid.hasValidFrom(packet) && from.isBareJid()) {
783 for (Element child : mucUserElement.getChildren()) {
784 if ("status".equals(child.getName())) {
785 try {
786 int code = Integer.parseInt(child.getAttribute("code"));
787 if ((code >= 170 && code <= 174) || (code >= 102 && code <= 104)) {
788 mXmppConnectionService.fetchConferenceConfiguration(conversation);
789 break;
790 }
791 } catch (Exception e) {
792 //ignored
793 }
794 } else if ("item".equals(child.getName())) {
795 MucOptions.User user = AbstractParser.parseItem(conversation, child);
796 Log.d(Config.LOGTAG, account.getJid() + ": changing affiliation for "
797 + user.getRealJid() + " to " + user.getAffiliation() + " in "
798 + conversation.getJid().asBareJid());
799 if (!user.realJidMatchesAccount()) {
800 boolean isNew = conversation.getMucOptions().updateUser(user);
801 mXmppConnectionService.getAvatarService().clear(conversation);
802 mXmppConnectionService.updateMucRosterUi();
803 mXmppConnectionService.updateConversationUi();
804 Contact contact = user.getContact();
805 if (!user.getAffiliation().ranks(MucOptions.Affiliation.MEMBER)) {
806 Jid jid = user.getRealJid();
807 List<Jid> cryptoTargets = conversation.getAcceptedCryptoTargets();
808 if (cryptoTargets.remove(user.getRealJid())) {
809 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": removed " + jid + " from crypto targets of " + conversation.getName());
810 conversation.setAcceptedCryptoTargets(cryptoTargets);
811 mXmppConnectionService.updateConversation(conversation);
812 }
813 } else if (isNew
814 && user.getRealJid() != null
815 && conversation.getMucOptions().isPrivateAndNonAnonymous()
816 && (contact == null || !contact.mutualPresenceSubscription())
817 && account.getAxolotlService().hasEmptyDeviceList(user.getRealJid())) {
818 account.getAxolotlService().fetchDeviceIds(user.getRealJid());
819 }
820 }
821 }
822 }
823 }
824 if (!isTypeGroupChat) {
825 for (Element child : packet.getChildren()) {
826 if (Namespace.JINGLE_MESSAGE.equals(child.getNamespace()) && JINGLE_MESSAGE_ELEMENT_NAMES.contains(child.getName())) {
827 if (!account.getJid().asBareJid().equals(from.asBareJid())) {
828 processMessageReceipts(account, packet, query);
829 }
830 mXmppConnectionService.getJingleConnectionManager().deliverMessage(account, packet.getTo(), packet.getFrom(), child);
831 break;
832 }
833 }
834 }
835 }
836
837 Element received = packet.findChild("received", "urn:xmpp:chat-markers:0");
838 if (received == null) {
839 received = packet.findChild("received", "urn:xmpp:receipts");
840 }
841 if (received != null) {
842 String id = received.getAttribute("id");
843 if (packet.fromAccount(account)) {
844 if (query != null && id != null && packet.getTo() != null) {
845 query.removePendingReceiptRequest(new ReceiptRequest(packet.getTo(), id));
846 }
847 } else if (id != null) {
848 if (id.startsWith(JingleRtpConnection.JINGLE_MESSAGE_ID_PREFIX)) {
849 final String sessionId = id.substring(JingleRtpConnection.JINGLE_MESSAGE_ID_PREFIX.length());
850 mXmppConnectionService.getJingleConnectionManager()
851 .updateProposedSessionDiscovered(account, from, sessionId, JingleConnectionManager.DeviceDiscoveryState.DISCOVERED);
852 } else {
853 mXmppConnectionService.markMessage(account, from.asBareJid(), id, Message.STATUS_SEND_RECEIVED);
854 }
855 }
856 }
857 Element displayed = packet.findChild("displayed", "urn:xmpp:chat-markers:0");
858 if (displayed != null) {
859 final String id = displayed.getAttribute("id");
860 final Jid sender = InvalidJid.getNullForInvalid(displayed.getAttributeAsJid("sender"));
861 if (packet.fromAccount(account) && !selfAddressed) {
862 dismissNotification(account, counterpart, query);
863 if (query == null) {
864 activateGracePeriod(account);
865 }
866 } else if (isTypeGroupChat) {
867 Conversation conversation = mXmppConnectionService.find(account, counterpart.asBareJid());
868 if (conversation != null && id != null && sender != null) {
869 Message message = conversation.findMessageWithRemoteId(id, sender);
870 if (message != null) {
871 final Jid fallback = conversation.getMucOptions().getTrueCounterpart(counterpart);
872 final Jid trueJid = getTrueCounterpart((query != null && query.safeToExtractTrueCounterpart()) ? mucUserElement : null, fallback);
873 final boolean trueJidMatchesAccount = account.getJid().asBareJid().equals(trueJid == null ? null : trueJid.asBareJid());
874 if (trueJidMatchesAccount || conversation.getMucOptions().isSelf(counterpart)) {
875 if (!message.isRead() && (query == null || query.isCatchup())) { //checking if message is unread fixes race conditions with reflections
876 mXmppConnectionService.markRead(conversation);
877 }
878 } else if (!counterpart.isBareJid() && trueJid != null) {
879 final ReadByMarker readByMarker = ReadByMarker.from(counterpart, trueJid);
880 if (message.addReadByMarker(readByMarker)) {
881 mXmppConnectionService.updateMessage(message, false);
882 }
883 }
884 }
885 }
886 } else {
887 final Message displayedMessage = mXmppConnectionService.markMessage(account, from.asBareJid(), id, Message.STATUS_SEND_DISPLAYED);
888 Message message = displayedMessage == null ? null : displayedMessage.prev();
889 while (message != null
890 && message.getStatus() == Message.STATUS_SEND_RECEIVED
891 && message.getTimeSent() < displayedMessage.getTimeSent()) {
892 mXmppConnectionService.markMessage(message, Message.STATUS_SEND_DISPLAYED);
893 message = message.prev();
894 }
895 if (displayedMessage != null && selfAddressed) {
896 dismissNotification(account, counterpart, query);
897 }
898 }
899 }
900
901 final Element event = original.findChild("event", "http://jabber.org/protocol/pubsub#event");
902 if (event != null && InvalidJid.hasValidFrom(original)) {
903 if (event.hasChild("items")) {
904 parseEvent(event, original.getFrom(), account);
905 } else if (event.hasChild("delete")) {
906 parseDeleteEvent(event, original.getFrom(), account);
907 } else if (event.hasChild("purge")) {
908 parsePurgeEvent(event, original.getFrom(), account);
909 }
910 }
911
912 final String nick = packet.findChildContent("nick", Namespace.NICK);
913 if (nick != null && InvalidJid.hasValidFrom(original)) {
914 Contact contact = account.getRoster().getContact(from);
915 if (contact.setPresenceName(nick)) {
916 mXmppConnectionService.getAvatarService().clear(contact);
917 }
918 }
919 }
920
921 private void dismissNotification(Account account, Jid counterpart, MessageArchiveService.Query query) {
922 Conversation conversation = mXmppConnectionService.find(account, counterpart.asBareJid());
923 if (conversation != null && (query == null || query.isCatchup())) {
924 mXmppConnectionService.markRead(conversation); //TODO only mark messages read that are older than timestamp
925 }
926 }
927
928 private void processMessageReceipts(Account account, MessagePacket packet, MessageArchiveService.Query query) {
929 final boolean markable = packet.hasChild("markable", "urn:xmpp:chat-markers:0");
930 final boolean request = packet.hasChild("request", "urn:xmpp:receipts");
931 if (query == null) {
932 final ArrayList<String> receiptsNamespaces = new ArrayList<>();
933 if (markable) {
934 receiptsNamespaces.add("urn:xmpp:chat-markers:0");
935 }
936 if (request) {
937 receiptsNamespaces.add("urn:xmpp:receipts");
938 }
939 if (receiptsNamespaces.size() > 0) {
940 MessagePacket receipt = mXmppConnectionService.getMessageGenerator().received(account,
941 packet,
942 receiptsNamespaces,
943 packet.getType());
944 mXmppConnectionService.sendMessagePacket(account, receipt);
945 }
946 } else if (query.isCatchup()) {
947 if (request) {
948 query.addPendingReceiptRequest(new ReceiptRequest(packet.getFrom(), packet.getId()));
949 }
950 }
951 }
952
953 private void activateGracePeriod(Account account) {
954 long duration = mXmppConnectionService.getLongPreference("grace_period_length", R.integer.grace_period) * 1000;
955 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": activating grace period till " + TIME_FORMAT.format(new Date(System.currentTimeMillis() + duration)));
956 account.activateGracePeriod(duration);
957 }
958
959 private class Invite {
960 final Jid jid;
961 final String password;
962 final boolean direct;
963 final Jid inviter;
964
965 Invite(Jid jid, String password, boolean direct, Jid inviter) {
966 this.jid = jid;
967 this.password = password;
968 this.direct = direct;
969 this.inviter = inviter;
970 }
971
972 public boolean execute(Account account) {
973 if (jid != null) {
974 Conversation conversation = mXmppConnectionService.findOrCreateConversation(account, jid, true, false);
975 if (conversation.getMucOptions().online()) {
976 Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received invite to " + jid + " but muc is considered to be online");
977 mXmppConnectionService.mucSelfPingAndRejoin(conversation);
978 } else {
979 conversation.getMucOptions().setPassword(password);
980 mXmppConnectionService.databaseBackend.updateConversation(conversation);
981 final Contact contact = inviter != null ? account.getRoster().getContactFromContactList(inviter) : null;
982 mXmppConnectionService.joinMuc(conversation, contact != null && contact.mutualPresenceSubscription());
983 mXmppConnectionService.updateConversationUi();
984 }
985 return true;
986 }
987 return false;
988 }
989 }
990}