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