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