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.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.xml.Element;
23import eu.siacs.conversations.xml.Namespace;
24import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
25import eu.siacs.conversations.xmpp.jid.Jid;
26import eu.siacs.conversations.xmpp.pep.Avatar;
27import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
28
29public class PresenceParser extends AbstractParser implements
30 OnPresencePacketReceived {
31
32 public PresenceParser(XmppConnectionService service) {
33 super(service);
34 }
35
36 public void parseConferencePresence(PresencePacket packet, Account account) {
37 final Conversation conversation = packet.getFrom() == null ? null : mXmppConnectionService.find(account, packet.getFrom().toBareJid());
38 if (conversation != null) {
39 final MucOptions mucOptions = conversation.getMucOptions();
40 boolean before = mucOptions.online();
41 int count = mucOptions.getUserCount();
42 final List<MucOptions.User> tileUserBefore = mucOptions.getUsers(5);
43 processConferencePresence(packet, conversation);
44 final List<MucOptions.User> tileUserAfter = mucOptions.getUsers(5);
45 if (!tileUserAfter.equals(tileUserBefore)) {
46 mXmppConnectionService.getAvatarService().clear(mucOptions);
47 }
48 if (before != mucOptions.online() || (mucOptions.online() && count != mucOptions.getUserCount())) {
49 mXmppConnectionService.updateConversationUi();
50 } else if (mucOptions.online()) {
51 mXmppConnectionService.updateMucRosterUi();
52 }
53 }
54 }
55
56 private void processConferencePresence(PresencePacket packet, Conversation conversation) {
57 MucOptions mucOptions = conversation.getMucOptions();
58 final Jid jid = conversation.getAccount().getJid();
59 final Jid from = packet.getFrom();
60 if (!from.isBareJid()) {
61 final String type = packet.getAttribute("type");
62 final Element x = packet.findChild("x", "http://jabber.org/protocol/muc#user");
63 Avatar avatar = Avatar.parsePresence(packet.findChild("x", "vcard-temp:x:update"));
64 final List<String> codes = getStatusCodes(x);
65 if (type == null) {
66 if (x != null) {
67 Element item = x.findChild("item");
68 if (item != null && !from.isBareJid()) {
69 mucOptions.setError(MucOptions.Error.NONE);
70 MucOptions.User user = parseItem(conversation, item, from);
71 if (codes.contains(MucOptions.STATUS_CODE_SELF_PRESENCE)
72 || ((codes.isEmpty() || codes.contains(MucOptions.STATUS_CODE_ROOM_CREATED)) && jid.equals(item.getAttributeAsJid("jid")))) {
73 mucOptions.setOnline();
74 mucOptions.setSelf(user);
75 if (mucOptions.onRenameListener != null) {
76 mucOptions.onRenameListener.onSuccess();
77 mucOptions.onRenameListener = null;
78 }
79 }
80 boolean isNew = mucOptions.updateUser(user);
81 final AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
82 if (isNew && user.getRealJid() != null && mucOptions.membersOnly() && mucOptions.nonanonymous() && axolotlService.hasEmptyDeviceList(user.getRealJid())) {
83 axolotlService.fetchDeviceIds(user.getRealJid());
84 }
85 if (codes.contains(MucOptions.STATUS_CODE_ROOM_CREATED) && mucOptions.autoPushConfiguration()) {
86 Log.d(Config.LOGTAG,mucOptions.getAccount().getJid().toBareJid()
87 +": room '"
88 +mucOptions.getConversation().getJid().toBareJid()
89 +"' created. pushing default configuration");
90 mXmppConnectionService.pushConferenceConfiguration(mucOptions.getConversation(),
91 IqGenerator.defaultRoomConfiguration(),
92 null);
93 }
94 if (mXmppConnectionService.getPgpEngine() != null) {
95 Element signed = packet.findChild("x", "jabber:x:signed");
96 if (signed != null) {
97 Element status = packet.findChild("status");
98 String msg = status == null ? "" : status.getContent();
99 long keyId = mXmppConnectionService.getPgpEngine().fetchKeyId(mucOptions.getAccount(), msg, signed.getContent());
100 if (keyId != 0) {
101 user.setPgpKeyId(keyId);
102 }
103 }
104 }
105 if (avatar != null) {
106 avatar.owner = from;
107 if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
108 if (user.setAvatar(avatar)) {
109 mXmppConnectionService.getAvatarService().clear(user);
110 }
111 } else if (mXmppConnectionService.isDataSaverDisabled()) {
112 mXmppConnectionService.fetchAvatar(mucOptions.getAccount(), avatar);
113 }
114 }
115 }
116 }
117 } else if (type.equals("unavailable")) {
118 if (codes.contains(MucOptions.STATUS_CODE_SELF_PRESENCE)) {
119 if (codes.contains(MucOptions.STATUS_CODE_KICKED)) {
120 mucOptions.setError(MucOptions.Error.KICKED);
121 } else if (codes.contains(MucOptions.STATUS_CODE_BANNED)) {
122 mucOptions.setError(MucOptions.Error.BANNED);
123 } else if (codes.contains(MucOptions.STATUS_CODE_LOST_MEMBERSHIP)) {
124 mucOptions.setError(MucOptions.Error.MEMBERS_ONLY);
125 } else if (codes.contains(MucOptions.STATUS_CODE_AFFILIATION_CHANGE)) {
126 mucOptions.setError(MucOptions.Error.MEMBERS_ONLY);
127 } else if (codes.contains(MucOptions.STATUS_CODE_SHUTDOWN)) {
128 mucOptions.setError(MucOptions.Error.SHUTDOWN);
129 } else if (!codes.contains(MucOptions.STATUS_CODE_CHANGED_NICK)) {
130 mucOptions.setError(MucOptions.Error.UNKNOWN);
131 Log.d(Config.LOGTAG, "unknown error in conference: " + packet);
132 }
133 } else if (!from.isBareJid()){
134 Element item = x.findChild("item");
135 if (item != null) {
136 mucOptions.updateUser(parseItem(conversation, item, from));
137 }
138 MucOptions.User user = mucOptions.deleteUser(from);
139 if (user != null) {
140 mXmppConnectionService.getAvatarService().clear(user);
141 }
142 }
143 } else if (type.equals("error")) {
144 Element error = packet.findChild("error");
145 if (error != null && error.hasChild("conflict")) {
146 if (mucOptions.online()) {
147 if (mucOptions.onRenameListener != null) {
148 mucOptions.onRenameListener.onFailure();
149 mucOptions.onRenameListener = null;
150 }
151 } else {
152 mucOptions.setError(MucOptions.Error.NICK_IN_USE);
153 }
154 } else if (error != null && error.hasChild("not-authorized")) {
155 mucOptions.setError(MucOptions.Error.PASSWORD_REQUIRED);
156 } else if (error != null && error.hasChild("forbidden")) {
157 mucOptions.setError(MucOptions.Error.BANNED);
158 } else if (error != null && error.hasChild("registration-required")) {
159 mucOptions.setError(MucOptions.Error.MEMBERS_ONLY);
160 }
161 }
162 }
163 }
164
165 private static List<String> getStatusCodes(Element x) {
166 List<String> codes = new ArrayList<>();
167 if (x != null) {
168 for (Element child : x.getChildren()) {
169 if (child.getName().equals("status")) {
170 String code = child.getAttribute("code");
171 if (code != null) {
172 codes.add(code);
173 }
174 }
175 }
176 }
177 return codes;
178 }
179
180 public void parseContactPresence(final PresencePacket packet, final Account account) {
181 final PresenceGenerator mPresenceGenerator = mXmppConnectionService.getPresenceGenerator();
182 final Jid from = packet.getFrom();
183 if (from == null || from.equals(account.getJid())) {
184 return;
185 }
186 final String type = packet.getAttribute("type");
187 final Contact contact = account.getRoster().getContact(from);
188 if (type == null) {
189 final String resource = from.isBareJid() ? "" : from.getResourcepart();
190 if (contact.setPresenceName(packet.findChildContent("nick", Namespace.NICK))) {
191 mXmppConnectionService.getAvatarService().clear(contact);
192 }
193 Avatar avatar = Avatar.parsePresence(packet.findChild("x", "vcard-temp:x:update"));
194 if (avatar != null && (!contact.isSelf() || account.getAvatar() == null)) {
195 avatar.owner = from.toBareJid();
196 if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
197 if (avatar.owner.equals(account.getJid().toBareJid())) {
198 account.setAvatar(avatar.getFilename());
199 mXmppConnectionService.databaseBackend.updateAccount(account);
200 mXmppConnectionService.getAvatarService().clear(account);
201 mXmppConnectionService.updateConversationUi();
202 mXmppConnectionService.updateAccountUi();
203 } else if (contact.setAvatar(avatar)) {
204 mXmppConnectionService.getAvatarService().clear(contact);
205 mXmppConnectionService.updateConversationUi();
206 mXmppConnectionService.updateRosterUi();
207 }
208 } else if (mXmppConnectionService.isDataSaverDisabled()){
209 mXmppConnectionService.fetchAvatar(account, avatar);
210 }
211 }
212 int sizeBefore = contact.getPresences().size();
213
214 final String show = packet.findChildContent("show");
215 final Element caps = packet.findChild("c", "http://jabber.org/protocol/caps");
216 final String message = packet.findChildContent("status");
217 final Presence presence = Presence.parse(show, caps, message);
218 contact.updatePresence(resource, presence);
219 if (presence.hasCaps()) {
220 mXmppConnectionService.fetchCaps(account, from, presence);
221 }
222
223 final Element idle = packet.findChild("idle", Namespace.IDLE);
224 if (idle != null) {
225 try {
226 final String since = idle.getAttribute("since");
227 contact.setLastseen(AbstractParser.parseTimestamp(since));
228 contact.flagInactive();
229 } catch (NullPointerException | ParseException e) {
230 if (contact.setLastseen(AbstractParser.parseTimestamp(packet))) {
231 contact.flagActive();
232 }
233 }
234 } else {
235 if (contact.setLastseen(AbstractParser.parseTimestamp(packet))) {
236 contact.flagActive();
237 }
238 }
239
240 PgpEngine pgp = mXmppConnectionService.getPgpEngine();
241 Element x = packet.findChild("x", "jabber:x:signed");
242 if (pgp != null && x != null) {
243 Element status = packet.findChild("status");
244 String msg = status != null ? status.getContent() : "";
245 contact.setPgpKeyId(pgp.fetchKeyId(account, msg, x.getContent()));
246 }
247 boolean online = sizeBefore < contact.getPresences().size();
248 mXmppConnectionService.onContactStatusChanged.onContactStatusChanged(contact, online);
249 } else if (type.equals("unavailable")) {
250 if (contact.setLastseen(AbstractParser.parseTimestamp(packet,0L,true))) {
251 contact.flagInactive();
252 }
253 if (from.isBareJid()) {
254 contact.clearPresences();
255 } else {
256 contact.removePresence(from.getResourcepart());
257 }
258 mXmppConnectionService.onContactStatusChanged.onContactStatusChanged(contact, false);
259 } else if (type.equals("subscribe")) {
260 if (contact.getOption(Contact.Options.PREEMPTIVE_GRANT)) {
261 mXmppConnectionService.sendPresencePacket(account,
262 mPresenceGenerator.sendPresenceUpdatesTo(contact));
263 } else {
264 contact.setOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
265 final Conversation conversation = mXmppConnectionService.findOrCreateConversation(
266 account, contact.getJid().toBareJid(), false, false);
267 final String statusMessage = packet.findChildContent("status");
268 if (statusMessage != null
269 && !statusMessage.isEmpty()
270 && conversation.countMessages() == 0) {
271 conversation.add(new Message(
272 conversation,
273 statusMessage,
274 Message.ENCRYPTION_NONE,
275 Message.STATUS_RECEIVED
276 ));
277 }
278 }
279 }
280 mXmppConnectionService.updateRosterUi();
281 }
282
283 @Override
284 public void onPresencePacketReceived(Account account, PresencePacket packet) {
285 if (packet.hasChild("x", "http://jabber.org/protocol/muc#user")) {
286 this.parseConferencePresence(packet, account);
287 } else if (packet.hasChild("x", "http://jabber.org/protocol/muc")) {
288 this.parseConferencePresence(packet, account);
289 } else {
290 this.parseContactPresence(packet, account);
291 }
292 }
293
294}