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