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