1package eu.siacs.conversations.parser;
2
3import android.util.Log;
4
5import eu.siacs.conversations.Config;
6import eu.siacs.conversations.crypto.PgpEngine;
7import eu.siacs.conversations.crypto.axolotl.AxolotlService;
8import eu.siacs.conversations.entities.Account;
9import eu.siacs.conversations.entities.Contact;
10import eu.siacs.conversations.entities.Conversation;
11import eu.siacs.conversations.entities.Message;
12import eu.siacs.conversations.entities.MucOptions;
13import eu.siacs.conversations.entities.Presence;
14import eu.siacs.conversations.generator.IqGenerator;
15import eu.siacs.conversations.generator.PresenceGenerator;
16import eu.siacs.conversations.services.XmppConnectionService;
17import eu.siacs.conversations.utils.XmppUri;
18import eu.siacs.conversations.xml.Element;
19import eu.siacs.conversations.xml.Namespace;
20import eu.siacs.conversations.xmpp.InvalidJid;
21import eu.siacs.conversations.xmpp.Jid;
22import eu.siacs.conversations.xmpp.pep.Avatar;
23
24import org.openintents.openpgp.util.OpenPgpUtils;
25
26import java.util.ArrayList;
27import java.util.List;
28import java.util.function.Consumer;
29
30public class PresenceParser extends AbstractParser implements Consumer<im.conversations.android.xmpp.model.stanza.Presence> {
31
32 public PresenceParser(final XmppConnectionService service, final Account account) {
33 super(service, account);
34 }
35
36 public void parseConferencePresence(final im.conversations.android.xmpp.model.stanza.Presence packet, Account account) {
37 final Conversation conversation =
38 packet.getFrom() == null
39 ? null
40 : mXmppConnectionService.find(account, packet.getFrom().asBareJid());
41 if (conversation != null) {
42 final MucOptions mucOptions = conversation.getMucOptions();
43 boolean before = mucOptions.online();
44 int count = mucOptions.getUserCount();
45 final List<MucOptions.User> tileUserBefore = mucOptions.getUsers(5);
46 processConferencePresence(packet, conversation);
47 final List<MucOptions.User> tileUserAfter = mucOptions.getUsers(5);
48 if (!tileUserAfter.equals(tileUserBefore)) {
49 mXmppConnectionService.getAvatarService().clear(mucOptions);
50 }
51 if (before != mucOptions.online()
52 || (mucOptions.online() && count != mucOptions.getUserCount())) {
53 mXmppConnectionService.updateConversationUi();
54 } else if (mucOptions.online()) {
55 mXmppConnectionService.updateMucRosterUi();
56 }
57 }
58 }
59
60 private void processConferencePresence(final im.conversations.android.xmpp.model.stanza.Presence packet, Conversation conversation) {
61 final Account account = conversation.getAccount();
62 final MucOptions mucOptions = conversation.getMucOptions();
63 final Jid jid = conversation.getAccount().getJid();
64 final Jid from = packet.getFrom();
65 if (!from.isBareJid()) {
66 final String type = packet.getAttribute("type");
67 final Element x = packet.findChild("x", Namespace.MUC_USER);
68 final Element nick = packet.findChild("nick", Namespace.NICK);
69 Element hats = packet.findChild("hats", "urn:xmpp:hats:0");
70 if (hats == null) {
71 hats = packet.findChild("hats", "xmpp:prosody.im/protocol/hats:1");
72 }
73 if (hats == null) hats = new Element("hats", "urn:xmpp:hats:0");
74 final Element occupantId = packet.findChild("occupant-id", "urn:xmpp:occupant-id:0");
75 Avatar avatar = Avatar.parsePresence(packet.findChild("x", "vcard-temp:x:update"));
76 final List<String> codes = getStatusCodes(x);
77 if (type == null) {
78 if (x != null) {
79 Element item = x.findChild("item");
80 if (item != null && !from.isBareJid()) {
81 mucOptions.setError(MucOptions.Error.NONE);
82 MucOptions.User user = parseItem(conversation, item, from, occupantId, nick == null ? null : nick.getContent(), hats);
83 if (codes.contains(MucOptions.STATUS_CODE_SELF_PRESENCE) || (codes.contains(MucOptions.STATUS_CODE_ROOM_CREATED) && jid.equals(InvalidJid.getNullForInvalid(item.getAttributeAsJid("jid"))))) {
84 if (mucOptions.setOnline()) {
85 mXmppConnectionService.getAvatarService().clear(mucOptions);
86 }
87 if (mucOptions.setSelf(user)) {
88 Log.d(Config.LOGTAG,"role or affiliation changed");
89 mXmppConnectionService.databaseBackend.updateConversation(conversation);
90 }
91 mXmppConnectionService.persistSelfNick(user);
92 invokeRenameListener(mucOptions, true);
93 }
94 boolean isNew = mucOptions.updateUser(user);
95 final AxolotlService axolotlService =
96 conversation.getAccount().getAxolotlService();
97 Contact contact = user.getContact();
98 if (isNew
99 && user.getRealJid() != null
100 && mucOptions.isPrivateAndNonAnonymous()
101 && (contact == null || !contact.mutualPresenceSubscription())
102 && axolotlService.hasEmptyDeviceList(user.getRealJid())) {
103 axolotlService.fetchDeviceIds(user.getRealJid());
104 }
105 if (codes.contains(MucOptions.STATUS_CODE_ROOM_CREATED)
106 && mucOptions.autoPushConfiguration()) {
107 Log.d(
108 Config.LOGTAG,
109 account.getJid().asBareJid()
110 + ": room '"
111 + mucOptions.getConversation().getJid().asBareJid()
112 + "' created. pushing default configuration");
113 mXmppConnectionService.pushConferenceConfiguration(
114 mucOptions.getConversation(),
115 IqGenerator.defaultChannelConfiguration(),
116 null);
117 }
118 if (mXmppConnectionService.getPgpEngine() != null) {
119 Element signed = packet.findChild("x", "jabber:x:signed");
120 if (signed != null) {
121 Element status = packet.findChild("status");
122 String msg = status == null ? "" : status.getContent();
123 long keyId =
124 mXmppConnectionService
125 .getPgpEngine()
126 .fetchKeyId(
127 mucOptions.getAccount(),
128 msg,
129 signed.getContent());
130 if (keyId != 0) {
131 user.setPgpKeyId(keyId);
132 }
133 }
134 }
135 if (avatar != null) {
136 avatar.owner = from;
137 if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
138 if (user.setAvatar(avatar)) {
139 mXmppConnectionService.getAvatarService().clear(user);
140 }
141 if (user.getRealJid() != null) {
142 final Contact c =
143 conversation
144 .getAccount()
145 .getRoster()
146 .getContact(user.getRealJid());
147 c.setAvatar(avatar);
148 mXmppConnectionService.syncRoster(conversation.getAccount());
149 mXmppConnectionService.getAvatarService().clear(c);
150 mXmppConnectionService.updateRosterUi(XmppConnectionService.UpdateRosterReason.AVATAR);
151 }
152 } else if (mXmppConnectionService.isDataSaverDisabled()) {
153 mXmppConnectionService.fetchAvatar(mucOptions.getAccount(), avatar);
154 }
155 }
156 }
157 }
158 } else if (type.equals("unavailable")) {
159 final boolean fullJidMatches = from.equals(mucOptions.getSelf().getFullJid());
160 if (x.hasChild("destroy") && fullJidMatches) {
161 Element destroy = x.findChild("destroy");
162 final Jid alternate =
163 destroy == null
164 ? null
165 : InvalidJid.getNullForInvalid(
166 destroy.getAttributeAsJid("jid"));
167 mucOptions.setError(MucOptions.Error.DESTROYED);
168 if (alternate != null) {
169 Log.d(
170 Config.LOGTAG,
171 account.getJid().asBareJid()
172 + ": muc destroyed. alternate location "
173 + alternate);
174 }
175 } else if (codes.contains(MucOptions.STATUS_CODE_SHUTDOWN) && fullJidMatches) {
176 mucOptions.setError(MucOptions.Error.SHUTDOWN);
177 } else if (codes.contains(MucOptions.STATUS_CODE_SELF_PRESENCE)) {
178 if (codes.contains(MucOptions.STATUS_CODE_TECHNICAL_REASONS)) {
179 final boolean wasOnline = mucOptions.online();
180 mucOptions.setError(MucOptions.Error.TECHNICAL_PROBLEMS);
181 Log.d(
182 Config.LOGTAG,
183 account.getJid().asBareJid()
184 + ": received status code 333 in room "
185 + mucOptions.getConversation().getJid().asBareJid()
186 + " online="
187 + wasOnline);
188 if (wasOnline) {
189 mXmppConnectionService.mucSelfPingAndRejoin(conversation);
190 }
191 } else if (codes.contains(MucOptions.STATUS_CODE_KICKED)) {
192 mucOptions.setError(MucOptions.Error.KICKED);
193 } else if (codes.contains(MucOptions.STATUS_CODE_BANNED)) {
194 mucOptions.setError(MucOptions.Error.BANNED);
195 } else if (codes.contains(MucOptions.STATUS_CODE_LOST_MEMBERSHIP)) {
196 mucOptions.setError(MucOptions.Error.MEMBERS_ONLY);
197 } else if (codes.contains(MucOptions.STATUS_CODE_AFFILIATION_CHANGE)) {
198 mucOptions.setError(MucOptions.Error.MEMBERS_ONLY);
199 } else if (codes.contains(MucOptions.STATUS_CODE_SHUTDOWN)) {
200 mucOptions.setError(MucOptions.Error.SHUTDOWN);
201 } else if (!codes.contains(MucOptions.STATUS_CODE_CHANGED_NICK)) {
202 mucOptions.setError(MucOptions.Error.UNKNOWN);
203 Log.d(Config.LOGTAG, "unknown error in conference: " + packet);
204 }
205 } else if (!from.isBareJid()) {
206 Element item = x.findChild("item");
207 if (item != null) {
208 mucOptions.updateUser(parseItem(conversation, item, from, occupantId, nick == null ? null : nick.getContent(), hats));
209 }
210 MucOptions.User user = mucOptions.deleteUser(from);
211 if (user != null && occupantId == null) {
212 mXmppConnectionService.getAvatarService().clear(user);
213 }
214 }
215 } else if (type.equals("error")) {
216 final Element error = packet.findChild("error");
217 if (error == null) {
218 return;
219 }
220 if (error.hasChild("conflict")) {
221 if (mucOptions.online()) {
222 invokeRenameListener(mucOptions, false);
223 } else {
224 mucOptions.setError(MucOptions.Error.NICK_IN_USE);
225 }
226 } else if (error.hasChild("not-authorized")) {
227 mucOptions.setError(MucOptions.Error.PASSWORD_REQUIRED);
228 } else if (error.hasChild("forbidden")) {
229 mucOptions.setError(MucOptions.Error.BANNED);
230 } else if (error.hasChild("registration-required")) {
231 mucOptions.setError(MucOptions.Error.MEMBERS_ONLY);
232 } else if (error.hasChild("resource-constraint")) {
233 mucOptions.setError(MucOptions.Error.RESOURCE_CONSTRAINT);
234 } else if (error.hasChild("remote-server-timeout")) {
235 mucOptions.setError(MucOptions.Error.REMOTE_SERVER_TIMEOUT);
236 } else if (error.hasChild("gone")) {
237 final String gone = error.findChildContent("gone");
238 final Jid alternate;
239 if (gone != null) {
240 final XmppUri xmppUri = new XmppUri(gone);
241 if (xmppUri.isValidJid()) {
242 alternate = xmppUri.getJid();
243 } else {
244 alternate = null;
245 }
246 } else {
247 alternate = null;
248 }
249 mucOptions.setError(MucOptions.Error.DESTROYED);
250 if (alternate != null) {
251 Log.d(
252 Config.LOGTAG,
253 conversation.getAccount().getJid().asBareJid()
254 + ": muc destroyed. alternate location "
255 + alternate);
256 }
257 } else {
258 final String text = error.findChildContent("text");
259 if (text != null && text.contains("attribute 'to'")) {
260 if (mucOptions.online()) {
261 invokeRenameListener(mucOptions, false);
262 } else {
263 mucOptions.setError(MucOptions.Error.INVALID_NICK);
264 }
265 } else {
266 mucOptions.setError(MucOptions.Error.UNKNOWN);
267 Log.d(Config.LOGTAG, "unknown error in conference: " + packet);
268 }
269 }
270 }
271 }
272 }
273
274 private static void invokeRenameListener(final MucOptions options, boolean success) {
275 if (options.onRenameListener != null) {
276 if (success) {
277 options.onRenameListener.onSuccess();
278 } else {
279 options.onRenameListener.onFailure();
280 }
281 options.onRenameListener = null;
282 }
283 }
284
285 private static List<String> getStatusCodes(Element x) {
286 List<String> codes = new ArrayList<>();
287 if (x != null) {
288 for (Element child : x.getChildren()) {
289 if (child.getName().equals("status")) {
290 String code = child.getAttribute("code");
291 if (code != null) {
292 codes.add(code);
293 }
294 }
295 }
296 }
297 return codes;
298 }
299
300 private void parseContactPresence(final im.conversations.android.xmpp.model.stanza.Presence packet, final Account account) {
301 final PresenceGenerator mPresenceGenerator = mXmppConnectionService.getPresenceGenerator();
302 final Jid from = packet.getFrom();
303 if (from == null || from.equals(account.getJid())) {
304 return;
305 }
306 final String type = packet.getAttribute("type");
307 final Contact contact = account.getRoster().getContact(from);
308 if (type == null) {
309 final String resource = from.isBareJid() ? "" : from.getResource();
310 final Avatar avatar =
311 Avatar.parsePresence(packet.findChild("x", "vcard-temp:x:update"));
312 if (avatar != null && (!contact.isSelf() || account.getAvatar() == null)) {
313 avatar.owner = from.asBareJid();
314 if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
315 if (avatar.owner.equals(account.getJid().asBareJid())) {
316 account.setAvatar(avatar.getFilename());
317 mXmppConnectionService.databaseBackend.updateAccount(account);
318 mXmppConnectionService.getAvatarService().clear(account);
319 mXmppConnectionService.updateConversationUi();
320 mXmppConnectionService.updateAccountUi();
321 } else {
322 contact.setAvatar(avatar);
323 mXmppConnectionService.syncRoster(account);
324 mXmppConnectionService.getAvatarService().clear(contact);
325 mXmppConnectionService.updateConversationUi();
326 mXmppConnectionService.updateRosterUi(XmppConnectionService.UpdateRosterReason.AVATAR);
327 }
328 } else if (mXmppConnectionService.isDataSaverDisabled()) {
329 mXmppConnectionService.fetchAvatar(account, avatar);
330 }
331 }
332
333 if (mXmppConnectionService.isMuc(account, from)) {
334 return;
335 }
336
337 final int sizeBefore = contact.getPresences().size();
338
339 final String show = packet.findChildContent("show");
340 final Element caps = packet.findChild("c", "http://jabber.org/protocol/caps");
341 final String message = packet.findChildContent("status");
342 final Presence presence = Presence.parse(show, caps, message);
343 contact.updatePresence(resource, presence);
344 if (presence.hasCaps()) {
345 mXmppConnectionService.fetchCaps(account, from, presence);
346 }
347
348 final Element idle = packet.findChild("idle", Namespace.IDLE);
349 if (idle != null) {
350 try {
351 final String since = idle.getAttribute("since");
352 contact.setLastseen(AbstractParser.parseTimestamp(since));
353 contact.flagInactive();
354 } catch (Throwable throwable) {
355 if (contact.setLastseen(AbstractParser.parseTimestamp(packet))) {
356 contact.flagActive();
357 }
358 }
359 } else {
360 if (contact.setLastseen(AbstractParser.parseTimestamp(packet))) {
361 contact.flagActive();
362 }
363 }
364
365 final PgpEngine pgp = mXmppConnectionService.getPgpEngine();
366 final Element x = packet.findChild("x", "jabber:x:signed");
367 if (pgp != null && x != null) {
368 final String status = packet.findChildContent("status");
369 final long keyId = pgp.fetchKeyId(account, status, x.getContent());
370 if (keyId != 0 && contact.setPgpKeyId(keyId)) {
371 Log.d(
372 Config.LOGTAG,
373 account.getJid().asBareJid()
374 + ": found OpenPGP key id for "
375 + contact.getJid()
376 + " "
377 + OpenPgpUtils.convertKeyIdToHex(keyId));
378 mXmppConnectionService.syncRoster(account);
379 }
380 }
381 boolean online = sizeBefore < contact.getPresences().size();
382 mXmppConnectionService.onContactStatusChanged.onContactStatusChanged(contact, online);
383 } else if (type.equals("unavailable")) {
384 if (contact.setLastseen(AbstractParser.parseTimestamp(packet, 0L, true))) {
385 contact.flagInactive();
386 }
387 if (from.isBareJid()) {
388 contact.clearPresences();
389 } else {
390 contact.removePresence(from.getResource());
391 }
392 if (contact.getShownStatus() == Presence.Status.OFFLINE) {
393 contact.flagInactive();
394 }
395 mXmppConnectionService.onContactStatusChanged.onContactStatusChanged(contact, false);
396 } else if (type.equals("subscribe")) {
397 if (contact.isBlocked()) {
398 Log.d(
399 Config.LOGTAG,
400 account.getJid().asBareJid()
401 + ": ignoring 'subscribe' presence from blocked "
402 + from);
403 return;
404 }
405 if (contact.setPresenceName(packet.findChildContent("nick", Namespace.NICK))) {
406 mXmppConnectionService.syncRoster(account);
407 mXmppConnectionService.getAvatarService().clear(contact);
408 }
409 if (contact.getOption(Contact.Options.PREEMPTIVE_GRANT)) {
410 mXmppConnectionService.sendPresencePacket(
411 account, mPresenceGenerator.sendPresenceUpdatesTo(contact));
412 } else {
413 contact.setOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
414 final Conversation conversation =
415 mXmppConnectionService.findOrCreateConversation(
416 account, contact.getJid().asBareJid(), false, false);
417 final String statusMessage = packet.findChildContent("status");
418 if (statusMessage != null
419 && !statusMessage.isEmpty()
420 && conversation.countMessages() == 0) {
421 conversation.add(
422 new Message(
423 conversation,
424 statusMessage,
425 Message.ENCRYPTION_NONE,
426 Message.STATUS_RECEIVED));
427 }
428 }
429 }
430 mXmppConnectionService.updateRosterUi(XmppConnectionService.UpdateRosterReason.PRESENCE, contact);
431 }
432
433 @Override
434 public void accept(final im.conversations.android.xmpp.model.stanza.Presence packet) {
435 if (packet.hasChild("x", Namespace.MUC_USER)) {
436 this.parseConferencePresence(packet, account);
437 } else if (packet.hasChild("x", "http://jabber.org/protocol/muc")) {
438 this.parseConferencePresence(packet, account);
439 } else if ("error".equals(packet.getAttribute("type"))
440 && mXmppConnectionService.isMuc(account, packet.getFrom())) {
441 this.parseConferencePresence(packet, account);
442 } else {
443 this.parseContactPresence(packet, account);
444 }
445 }
446}