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