1package eu.siacs.conversations.parser;
2
3import android.util.Log;
4
5import java.text.ParseException;
6import java.util.ArrayList;
7import java.util.List;
8
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.Bookmark;
15import eu.siacs.conversations.entities.Contact;
16import eu.siacs.conversations.entities.Conversation;
17import eu.siacs.conversations.entities.Message;
18import eu.siacs.conversations.entities.MucOptions;
19import eu.siacs.conversations.entities.Presence;
20import eu.siacs.conversations.generator.IqGenerator;
21import eu.siacs.conversations.generator.PresenceGenerator;
22import eu.siacs.conversations.services.XmppConnectionService;
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.OnPresencePacketReceived;
28import eu.siacs.conversations.xmpp.pep.Avatar;
29import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
30import rocks.xmpp.addr.Jid;
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", "http://jabber.org/protocol/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.defaultRoomConfiguration(),
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 } else if (mXmppConnectionService.isDataSaverDisabled()) {
123 mXmppConnectionService.fetchAvatar(mucOptions.getAccount(), avatar);
124 }
125 }
126 }
127 }
128 } else if (type.equals("unavailable")) {
129 final boolean fullJidMatches = from.equals(mucOptions.getSelf().getFullJid());
130 if (x.hasChild("destroy") && fullJidMatches) {
131 Element destroy = x.findChild("destroy");
132 final Jid alternate = destroy == null ? null : InvalidJid.getNullForInvalid(destroy.getAttributeAsJid("jid"));
133 mucOptions.setError(MucOptions.Error.DESTROYED);
134 if (alternate != null) {
135 Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": muc destroyed. alternate location " + alternate);
136 }
137 } else if (codes.contains(MucOptions.STATUS_CODE_SHUTDOWN) && fullJidMatches) {
138 mucOptions.setError(MucOptions.Error.SHUTDOWN);
139 } else if (codes.contains(MucOptions.STATUS_CODE_SELF_PRESENCE)) {
140 if (codes.contains(MucOptions.STATUS_CODE_KICKED)) {
141 mucOptions.setError(MucOptions.Error.KICKED);
142 } else if (codes.contains(MucOptions.STATUS_CODE_BANNED)) {
143 mucOptions.setError(MucOptions.Error.BANNED);
144 } else if (codes.contains(MucOptions.STATUS_CODE_LOST_MEMBERSHIP)) {
145 mucOptions.setError(MucOptions.Error.MEMBERS_ONLY);
146 } else if (codes.contains(MucOptions.STATUS_CODE_AFFILIATION_CHANGE)) {
147 mucOptions.setError(MucOptions.Error.MEMBERS_ONLY);
148 } else if (codes.contains(MucOptions.STATUS_CODE_SHUTDOWN)) {
149 mucOptions.setError(MucOptions.Error.SHUTDOWN);
150 } else if (!codes.contains(MucOptions.STATUS_CODE_CHANGED_NICK)) {
151 mucOptions.setError(MucOptions.Error.UNKNOWN);
152 Log.d(Config.LOGTAG, "unknown error in conference: " + packet);
153 }
154 } else if (!from.isBareJid()){
155 Element item = x.findChild("item");
156 if (item != null) {
157 mucOptions.updateUser(parseItem(conversation, item, from));
158 }
159 MucOptions.User user = mucOptions.deleteUser(from);
160 if (user != null) {
161 mXmppConnectionService.getAvatarService().clear(user);
162 }
163 }
164 } else if (type.equals("error")) {
165 final Element error = packet.findChild("error");
166 if (error == null) {
167 return;
168 }
169 if (error.hasChild("conflict")) {
170 if (mucOptions.online()) {
171 invokeRenameListener(mucOptions, false);
172 } else {
173 mucOptions.setError(MucOptions.Error.NICK_IN_USE);
174 }
175 } else if (error.hasChild("not-authorized")) {
176 mucOptions.setError(MucOptions.Error.PASSWORD_REQUIRED);
177 } else if (error.hasChild("forbidden")) {
178 mucOptions.setError(MucOptions.Error.BANNED);
179 } else if (error.hasChild("registration-required")) {
180 mucOptions.setError(MucOptions.Error.MEMBERS_ONLY);
181 } else if (error.hasChild("resource-constraint")) {
182 mucOptions.setError(MucOptions.Error.RESOURCE_CONSTRAINT);
183 } else if (error.hasChild("gone")) {
184 final String gone = error.findChildContent("gone");
185 final Jid alternate;
186 if (gone != null) {
187 final XmppUri xmppUri = new XmppUri(gone);
188 if (xmppUri.isJidValid()) {
189 alternate = xmppUri.getJid();
190 } else {
191 alternate = null;
192 }
193 } else {
194 alternate = null;
195 }
196 mucOptions.setError(MucOptions.Error.DESTROYED);
197 if (alternate != null) {
198 Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": muc destroyed. alternate location " + alternate);
199 }
200 } else {
201 final String text = error.findChildContent("text");
202 if (text != null && text.contains("attribute 'to'")) {
203 if (mucOptions.online()) {
204 invokeRenameListener(mucOptions, false);
205 } else {
206 mucOptions.setError(MucOptions.Error.INVALID_NICK);
207 }
208 } else {
209 mucOptions.setError(MucOptions.Error.UNKNOWN);
210 Log.d(Config.LOGTAG, "unknown error in conference: " + packet);
211 }
212 }
213 }
214 }
215 }
216
217 private static void invokeRenameListener(final MucOptions options, boolean success) {
218 if (options.onRenameListener != null) {
219 if (success) {
220 options.onRenameListener.onSuccess();
221 } else {
222 options.onRenameListener.onFailure();
223 }
224 options.onRenameListener = null;
225 }
226 }
227
228 private static List<String> getStatusCodes(Element x) {
229 List<String> codes = new ArrayList<>();
230 if (x != null) {
231 for (Element child : x.getChildren()) {
232 if (child.getName().equals("status")) {
233 String code = child.getAttribute("code");
234 if (code != null) {
235 codes.add(code);
236 }
237 }
238 }
239 }
240 return codes;
241 }
242
243 public void parseContactPresence(final PresencePacket packet, final Account account) {
244 final PresenceGenerator mPresenceGenerator = mXmppConnectionService.getPresenceGenerator();
245 final Jid from = packet.getFrom();
246 if (from == null || from.equals(account.getJid())) {
247 return;
248 }
249 final String type = packet.getAttribute("type");
250 final Contact contact = account.getRoster().getContact(from);
251 if (type == null) {
252 final String resource = from.isBareJid() ? "" : from.getResource();
253 if (contact.setPresenceName(packet.findChildContent("nick", Namespace.NICK))) {
254 mXmppConnectionService.getAvatarService().clear(contact);
255 }
256 Avatar avatar = Avatar.parsePresence(packet.findChild("x", "vcard-temp:x:update"));
257 if (avatar != null && (!contact.isSelf() || account.getAvatar() == null)) {
258 avatar.owner = from.asBareJid();
259 if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
260 if (avatar.owner.equals(account.getJid().asBareJid())) {
261 account.setAvatar(avatar.getFilename());
262 mXmppConnectionService.databaseBackend.updateAccount(account);
263 mXmppConnectionService.getAvatarService().clear(account);
264 mXmppConnectionService.updateConversationUi();
265 mXmppConnectionService.updateAccountUi();
266 } else if (contact.setAvatar(avatar)) {
267 mXmppConnectionService.syncRoster(account);
268 mXmppConnectionService.getAvatarService().clear(contact);
269 mXmppConnectionService.updateConversationUi();
270 mXmppConnectionService.updateRosterUi();
271 }
272 } else if (mXmppConnectionService.isDataSaverDisabled()){
273 mXmppConnectionService.fetchAvatar(account, avatar);
274 }
275 }
276 int sizeBefore = contact.getPresences().size();
277
278 final String show = packet.findChildContent("show");
279 final Element caps = packet.findChild("c", "http://jabber.org/protocol/caps");
280 final String message = packet.findChildContent("status");
281 final Presence presence = Presence.parse(show, caps, message);
282 contact.updatePresence(resource, presence);
283 if (presence.hasCaps()) {
284 mXmppConnectionService.fetchCaps(account, from, presence);
285 }
286
287 final Element idle = packet.findChild("idle", Namespace.IDLE);
288 if (idle != null) {
289 try {
290 final String since = idle.getAttribute("since");
291 contact.setLastseen(AbstractParser.parseTimestamp(since));
292 contact.flagInactive();
293 } catch (Throwable throwable) {
294 if (contact.setLastseen(AbstractParser.parseTimestamp(packet))) {
295 contact.flagActive();
296 }
297 }
298 } else {
299 if (contact.setLastseen(AbstractParser.parseTimestamp(packet))) {
300 contact.flagActive();
301 }
302 }
303
304 PgpEngine pgp = mXmppConnectionService.getPgpEngine();
305 Element x = packet.findChild("x", "jabber:x:signed");
306 if (pgp != null && x != null) {
307 Element status = packet.findChild("status");
308 String msg = status != null ? status.getContent() : "";
309 contact.setPgpKeyId(pgp.fetchKeyId(account, msg, x.getContent()));
310 }
311 boolean online = sizeBefore < contact.getPresences().size();
312 mXmppConnectionService.onContactStatusChanged.onContactStatusChanged(contact, online);
313 } else if (type.equals("unavailable")) {
314 if (contact.setLastseen(AbstractParser.parseTimestamp(packet,0L,true))) {
315 contact.flagInactive();
316 }
317 if (from.isBareJid()) {
318 contact.clearPresences();
319 } else {
320 contact.removePresence(from.getResource());
321 }
322 if (contact.getShownStatus() == Presence.Status.OFFLINE) {
323 contact.flagInactive();
324 }
325 mXmppConnectionService.onContactStatusChanged.onContactStatusChanged(contact, false);
326 } else if (type.equals("subscribe")) {
327 if (contact.getOption(Contact.Options.PREEMPTIVE_GRANT)) {
328 mXmppConnectionService.sendPresencePacket(account,
329 mPresenceGenerator.sendPresenceUpdatesTo(contact));
330 } else {
331 contact.setOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
332 final Conversation conversation = mXmppConnectionService.findOrCreateConversation(
333 account, contact.getJid().asBareJid(), false, false);
334 final String statusMessage = packet.findChildContent("status");
335 if (statusMessage != null
336 && !statusMessage.isEmpty()
337 && conversation.countMessages() == 0) {
338 conversation.add(new Message(
339 conversation,
340 statusMessage,
341 Message.ENCRYPTION_NONE,
342 Message.STATUS_RECEIVED
343 ));
344 }
345 }
346 }
347 mXmppConnectionService.updateRosterUi();
348 }
349
350 @Override
351 public void onPresencePacketReceived(Account account, PresencePacket packet) {
352 if (packet.hasChild("x", "http://jabber.org/protocol/muc#user")) {
353 this.parseConferencePresence(packet, account);
354 } else if (packet.hasChild("x", "http://jabber.org/protocol/muc")) {
355 this.parseConferencePresence(packet, account);
356 } else if ("error".equals(packet.getAttribute("type")) && mXmppConnectionService.isMuc(account, packet.getFrom())) {
357 this.parseConferencePresence(packet, account);
358 } else {
359 this.parseContactPresence(packet, account);
360 }
361 }
362}