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.CryptoHelper;
23import eu.siacs.conversations.utils.XmppUri;
24import eu.siacs.conversations.xml.Element;
25import eu.siacs.conversations.xml.Namespace;
26import eu.siacs.conversations.xmpp.InvalidJid;
27import eu.siacs.conversations.xmpp.Jid;
28import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
29import eu.siacs.conversations.xmpp.pep.Avatar;
30import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
31
32public class PresenceParser extends AbstractParser implements
33 OnPresencePacketReceived {
34
35 public PresenceParser(XmppConnectionService service) {
36 super(service);
37 }
38
39 public void parseConferencePresence(PresencePacket packet, Account account) {
40 final Conversation conversation = packet.getFrom() == null ? null : mXmppConnectionService.find(account, packet.getFrom().asBareJid());
41 if (conversation != null) {
42 final MucOptions mucOptions = conversation.getMucOptions();
43 boolean before = mucOptions.online();
44 int count = mucOptions.getUserCount();
45 final List<MucOptions.User> tileUserBefore = mucOptions.getUsers(5);
46 processConferencePresence(packet, conversation);
47 final List<MucOptions.User> tileUserAfter = mucOptions.getUsers(5);
48 if (!tileUserAfter.equals(tileUserBefore)) {
49 mXmppConnectionService.getAvatarService().clear(mucOptions);
50 }
51 if (before != mucOptions.online() || (mucOptions.online() && count != mucOptions.getUserCount())) {
52 mXmppConnectionService.updateConversationUi();
53 } else if (mucOptions.online()) {
54 mXmppConnectionService.updateMucRosterUi();
55 }
56 }
57 }
58
59 private void processConferencePresence(PresencePacket packet, Conversation conversation) {
60 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,mucOptions.getAccount().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, conversation.getAccount().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_KICKED)) {
148 mucOptions.setError(MucOptions.Error.KICKED);
149 } else if (codes.contains(MucOptions.STATUS_CODE_BANNED)) {
150 mucOptions.setError(MucOptions.Error.BANNED);
151 } else if (codes.contains(MucOptions.STATUS_CODE_LOST_MEMBERSHIP)) {
152 mucOptions.setError(MucOptions.Error.MEMBERS_ONLY);
153 } else if (codes.contains(MucOptions.STATUS_CODE_AFFILIATION_CHANGE)) {
154 mucOptions.setError(MucOptions.Error.MEMBERS_ONLY);
155 } else if (codes.contains(MucOptions.STATUS_CODE_SHUTDOWN)) {
156 mucOptions.setError(MucOptions.Error.SHUTDOWN);
157 } else if (!codes.contains(MucOptions.STATUS_CODE_CHANGED_NICK)) {
158 mucOptions.setError(MucOptions.Error.UNKNOWN);
159 Log.d(Config.LOGTAG, "unknown error in conference: " + packet);
160 }
161 } else if (!from.isBareJid()){
162 Element item = x.findChild("item");
163 if (item != null) {
164 mucOptions.updateUser(parseItem(conversation, item, from));
165 }
166 MucOptions.User user = mucOptions.deleteUser(from);
167 if (user != null) {
168 mXmppConnectionService.getAvatarService().clear(user);
169 }
170 }
171 } else if (type.equals("error")) {
172 final Element error = packet.findChild("error");
173 if (error == null) {
174 return;
175 }
176 if (error.hasChild("conflict")) {
177 if (mucOptions.online()) {
178 invokeRenameListener(mucOptions, false);
179 } else {
180 mucOptions.setError(MucOptions.Error.NICK_IN_USE);
181 }
182 } else if (error.hasChild("not-authorized")) {
183 mucOptions.setError(MucOptions.Error.PASSWORD_REQUIRED);
184 } else if (error.hasChild("forbidden")) {
185 mucOptions.setError(MucOptions.Error.BANNED);
186 } else if (error.hasChild("registration-required")) {
187 mucOptions.setError(MucOptions.Error.MEMBERS_ONLY);
188 } else if (error.hasChild("resource-constraint")) {
189 mucOptions.setError(MucOptions.Error.RESOURCE_CONSTRAINT);
190 } else if (error.hasChild("remote-server-timeout")) {
191 mucOptions.setError(MucOptions.Error.REMOTE_SERVER_TIMEOUT);
192 } else if (error.hasChild("gone")) {
193 final String gone = error.findChildContent("gone");
194 final Jid alternate;
195 if (gone != null) {
196 final XmppUri xmppUri = new XmppUri(gone);
197 if (xmppUri.isValidJid()) {
198 alternate = xmppUri.getJid();
199 } else {
200 alternate = null;
201 }
202 } else {
203 alternate = null;
204 }
205 mucOptions.setError(MucOptions.Error.DESTROYED);
206 if (alternate != null) {
207 Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": muc destroyed. alternate location " + alternate);
208 }
209 } else {
210 final String text = error.findChildContent("text");
211 if (text != null && text.contains("attribute 'to'")) {
212 if (mucOptions.online()) {
213 invokeRenameListener(mucOptions, false);
214 } else {
215 mucOptions.setError(MucOptions.Error.INVALID_NICK);
216 }
217 } else {
218 mucOptions.setError(MucOptions.Error.UNKNOWN);
219 Log.d(Config.LOGTAG, "unknown error in conference: " + packet);
220 }
221 }
222 }
223 }
224 }
225
226 private static void invokeRenameListener(final MucOptions options, boolean success) {
227 if (options.onRenameListener != null) {
228 if (success) {
229 options.onRenameListener.onSuccess();
230 } else {
231 options.onRenameListener.onFailure();
232 }
233 options.onRenameListener = null;
234 }
235 }
236
237 private static List<String> getStatusCodes(Element x) {
238 List<String> codes = new ArrayList<>();
239 if (x != null) {
240 for (Element child : x.getChildren()) {
241 if (child.getName().equals("status")) {
242 String code = child.getAttribute("code");
243 if (code != null) {
244 codes.add(code);
245 }
246 }
247 }
248 }
249 return codes;
250 }
251
252 private void parseContactPresence(final PresencePacket packet, final Account account) {
253 final PresenceGenerator mPresenceGenerator = mXmppConnectionService.getPresenceGenerator();
254 final Jid from = packet.getFrom();
255 if (from == null || from.equals(account.getJid())) {
256 return;
257 }
258 final String type = packet.getAttribute("type");
259 final Contact contact = account.getRoster().getContact(from);
260 if (type == null) {
261 final String resource = from.isBareJid() ? "" : from.getResource();
262 Avatar avatar = Avatar.parsePresence(packet.findChild("x", "vcard-temp:x:update"));
263 if (avatar != null && (!contact.isSelf() || account.getAvatar() == null)) {
264 avatar.owner = from.asBareJid();
265 if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
266 if (avatar.owner.equals(account.getJid().asBareJid())) {
267 account.setAvatar(avatar.getFilename());
268 mXmppConnectionService.databaseBackend.updateAccount(account);
269 mXmppConnectionService.getAvatarService().clear(account);
270 mXmppConnectionService.updateConversationUi();
271 mXmppConnectionService.updateAccountUi();
272 } else {
273 contact.setAvatar(avatar);
274 mXmppConnectionService.syncRoster(account);
275 mXmppConnectionService.getAvatarService().clear(contact);
276 mXmppConnectionService.updateConversationUi();
277 mXmppConnectionService.updateRosterUi();
278 }
279 } else if (mXmppConnectionService.isDataSaverDisabled()){
280 mXmppConnectionService.fetchAvatar(account, avatar);
281 }
282 }
283
284 if (mXmppConnectionService.isMuc(account, from)) {
285 return;
286 }
287
288 int sizeBefore = contact.getPresences().size();
289
290 final String show = packet.findChildContent("show");
291 final Element caps = packet.findChild("c", "http://jabber.org/protocol/caps");
292 final String message = packet.findChildContent("status");
293 final Presence presence = Presence.parse(show, caps, message);
294 contact.updatePresence(resource, presence);
295 if (presence.hasCaps()) {
296 mXmppConnectionService.fetchCaps(account, from, presence);
297 }
298
299 final Element idle = packet.findChild("idle", Namespace.IDLE);
300 if (idle != null) {
301 try {
302 final String since = idle.getAttribute("since");
303 contact.setLastseen(AbstractParser.parseTimestamp(since));
304 contact.flagInactive();
305 } catch (Throwable throwable) {
306 if (contact.setLastseen(AbstractParser.parseTimestamp(packet))) {
307 contact.flagActive();
308 }
309 }
310 } else {
311 if (contact.setLastseen(AbstractParser.parseTimestamp(packet))) {
312 contact.flagActive();
313 }
314 }
315
316 PgpEngine pgp = mXmppConnectionService.getPgpEngine();
317 Element x = packet.findChild("x", "jabber:x:signed");
318 if (pgp != null && x != null) {
319 final String status = packet.findChildContent("status");
320 final long keyId = pgp.fetchKeyId(account, status, x.getContent());
321 if (keyId != 0 && contact.setPgpKeyId(keyId)) {
322 Log.d(Config.LOGTAG,account.getJid().asBareJid()+": found OpenPGP key id for "+contact.getJid()+" "+OpenPgpUtils.convertKeyIdToHex(keyId));
323 mXmppConnectionService.syncRoster(account);
324 }
325 }
326 boolean online = sizeBefore < contact.getPresences().size();
327 mXmppConnectionService.onContactStatusChanged.onContactStatusChanged(contact, online);
328 } else if (type.equals("unavailable")) {
329 if (contact.setLastseen(AbstractParser.parseTimestamp(packet,0L,true))) {
330 contact.flagInactive();
331 }
332 if (from.isBareJid()) {
333 contact.clearPresences();
334 } else {
335 contact.removePresence(from.getResource());
336 }
337 if (contact.getShownStatus() == Presence.Status.OFFLINE) {
338 contact.flagInactive();
339 }
340 mXmppConnectionService.onContactStatusChanged.onContactStatusChanged(contact, false);
341 } else if (type.equals("subscribe")) {
342 if (contact.setPresenceName(packet.findChildContent("nick", Namespace.NICK))) {
343 mXmppConnectionService.syncRoster(account);
344 mXmppConnectionService.getAvatarService().clear(contact);
345 }
346 if (contact.getOption(Contact.Options.PREEMPTIVE_GRANT)) {
347 mXmppConnectionService.sendPresencePacket(account,
348 mPresenceGenerator.sendPresenceUpdatesTo(contact));
349 } else {
350 contact.setOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
351 final Conversation conversation = mXmppConnectionService.findOrCreateConversation(
352 account, contact.getJid().asBareJid(), false, false);
353 final String statusMessage = packet.findChildContent("status");
354 if (statusMessage != null
355 && !statusMessage.isEmpty()
356 && conversation.countMessages() == 0) {
357 conversation.add(new Message(
358 conversation,
359 statusMessage,
360 Message.ENCRYPTION_NONE,
361 Message.STATUS_RECEIVED
362 ));
363 }
364 }
365 }
366 mXmppConnectionService.updateRosterUi();
367 }
368
369 @Override
370 public void onPresencePacketReceived(Account account, PresencePacket packet) {
371 if (packet.hasChild("x", Namespace.MUC_USER)) {
372 this.parseConferencePresence(packet, account);
373 } else if (packet.hasChild("x", "http://jabber.org/protocol/muc")) {
374 this.parseConferencePresence(packet, account);
375 } else if ("error".equals(packet.getAttribute("type")) && mXmppConnectionService.isMuc(account, packet.getFrom())) {
376 this.parseConferencePresence(packet, account);
377 } else {
378 this.parseContactPresence(packet, account);
379 }
380 }
381}