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