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