1package eu.siacs.conversations.parser;
2
3import java.util.ArrayList;
4import java.util.List;
5
6import eu.siacs.conversations.crypto.PgpEngine;
7import eu.siacs.conversations.entities.Account;
8import eu.siacs.conversations.entities.Contact;
9import eu.siacs.conversations.entities.Conversation;
10import eu.siacs.conversations.entities.Message;
11import eu.siacs.conversations.entities.MucOptions;
12import eu.siacs.conversations.entities.Presence;
13import eu.siacs.conversations.entities.ServiceDiscoveryResult;
14import eu.siacs.conversations.generator.PresenceGenerator;
15import eu.siacs.conversations.services.XmppConnectionService;
16import eu.siacs.conversations.xml.Element;
17import eu.siacs.conversations.xmpp.OnIqPacketReceived;
18import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
19import eu.siacs.conversations.xmpp.jid.Jid;
20import eu.siacs.conversations.xmpp.pep.Avatar;
21import eu.siacs.conversations.xmpp.stanzas.IqPacket;
22import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
23
24public class PresenceParser extends AbstractParser implements
25 OnPresencePacketReceived {
26
27 public PresenceParser(XmppConnectionService service) {
28 super(service);
29 }
30
31 public void parseConferencePresence(PresencePacket packet, Account account) {
32 final Conversation conversation = packet.getFrom() == null ? null : mXmppConnectionService.find(account, packet.getFrom().toBareJid());
33 if (conversation != null) {
34 final MucOptions mucOptions = conversation.getMucOptions();
35 boolean before = mucOptions.online();
36 int count = mucOptions.getUserCount();
37 final List<MucOptions.User> tileUserBefore = mucOptions.getUsers(5);
38 processConferencePresence(packet, mucOptions);
39 final List<MucOptions.User> tileUserAfter = mucOptions.getUsers(5);
40 if (!tileUserAfter.equals(tileUserBefore)) {
41 mXmppConnectionService.getAvatarService().clear(mucOptions);
42 }
43 if (before != mucOptions.online() || (mucOptions.online() && count != mucOptions.getUserCount())) {
44 mXmppConnectionService.updateConversationUi();
45 } else if (mucOptions.online()) {
46 mXmppConnectionService.updateMucRosterUi();
47 }
48 }
49 }
50
51 private void processConferencePresence(PresencePacket packet, MucOptions mucOptions) {
52 final Jid from = packet.getFrom();
53 if (!from.isBareJid()) {
54 final String type = packet.getAttribute("type");
55 final Element x = packet.findChild("x", "http://jabber.org/protocol/muc#user");
56 Avatar avatar = Avatar.parsePresence(packet.findChild("x", "vcard-temp:x:update"));
57 final List<String> codes = getStatusCodes(x);
58 if (type == null) {
59 if (x != null) {
60 Element item = x.findChild("item");
61 if (item != null && !from.isBareJid()) {
62 MucOptions.User user = new MucOptions.User(mucOptions,from);
63 user.setAffiliation(item.getAttribute("affiliation"));
64 user.setRole(item.getAttribute("role"));
65 user.setJid(item.getAttributeAsJid("jid"));
66 if (codes.contains(MucOptions.STATUS_CODE_SELF_PRESENCE) || packet.getFrom().equals(mucOptions.getConversation().getJid())) {
67 mucOptions.setError(MucOptions.ERROR_NO_ERROR);
68 mucOptions.setSelf(user);
69 if (mucOptions.mNickChangingInProgress) {
70 if (mucOptions.onRenameListener != null) {
71 mucOptions.onRenameListener.onSuccess();
72 }
73 mucOptions.mNickChangingInProgress = false;
74 }
75 } else {
76 mucOptions.addUser(user);
77 }
78 if (mXmppConnectionService.getPgpEngine() != null) {
79 Element signed = packet.findChild("x", "jabber:x:signed");
80 if (signed != null) {
81 Element status = packet.findChild("status");
82 String msg = status == null ? "" : status.getContent();
83 long keyId = mXmppConnectionService.getPgpEngine().fetchKeyId(mucOptions.getAccount(), msg, signed.getContent());
84 if (keyId != 0) {
85 user.setPgpKeyId(keyId);
86 }
87 }
88 }
89 if (avatar != null) {
90 avatar.owner = from;
91 if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
92 if (user.setAvatar(avatar)) {
93 mXmppConnectionService.getAvatarService().clear(user);
94 }
95 } else {
96 mXmppConnectionService.fetchAvatar(mucOptions.getAccount(), avatar);
97 }
98 }
99 }
100 }
101 } else if (type.equals("unavailable")) {
102 if (codes.contains(MucOptions.STATUS_CODE_SELF_PRESENCE) ||
103 packet.getFrom().equals(mucOptions.getConversation().getJid())) {
104 if (codes.contains(MucOptions.STATUS_CODE_CHANGED_NICK)) {
105 mucOptions.mNickChangingInProgress = true;
106 } else if (codes.contains(MucOptions.STATUS_CODE_KICKED)) {
107 mucOptions.setError(MucOptions.KICKED_FROM_ROOM);
108 } else if (codes.contains(MucOptions.STATUS_CODE_BANNED)) {
109 mucOptions.setError(MucOptions.ERROR_BANNED);
110 } else if (codes.contains(MucOptions.STATUS_CODE_LOST_MEMBERSHIP)) {
111 mucOptions.setError(MucOptions.ERROR_MEMBERS_ONLY);
112 } else {
113 mucOptions.setError(MucOptions.ERROR_UNKNOWN);
114 }
115 } else if (!from.isBareJid()){
116 MucOptions.User user = mucOptions.deleteUser(from.getResourcepart());
117 if (user != null) {
118 mXmppConnectionService.getAvatarService().clear(user);
119 }
120 }
121 } else if (type.equals("error")) {
122 Element error = packet.findChild("error");
123 if (error != null && error.hasChild("conflict")) {
124 if (mucOptions.online()) {
125 if (mucOptions.onRenameListener != null) {
126 mucOptions.onRenameListener.onFailure();
127 }
128 } else {
129 mucOptions.setError(MucOptions.ERROR_NICK_IN_USE);
130 }
131 } else if (error != null && error.hasChild("not-authorized")) {
132 mucOptions.setError(MucOptions.ERROR_PASSWORD_REQUIRED);
133 } else if (error != null && error.hasChild("forbidden")) {
134 mucOptions.setError(MucOptions.ERROR_BANNED);
135 } else if (error != null && error.hasChild("registration-required")) {
136 mucOptions.setError(MucOptions.ERROR_MEMBERS_ONLY);
137 }
138 }
139 }
140 }
141
142 private static List<String> getStatusCodes(Element x) {
143 List<String> codes = new ArrayList<>();
144 if (x != null) {
145 for (Element child : x.getChildren()) {
146 if (child.getName().equals("status")) {
147 String code = child.getAttribute("code");
148 if (code != null) {
149 codes.add(code);
150 }
151 }
152 }
153 }
154 return codes;
155 }
156
157 public void parseContactPresence(final PresencePacket packet, final Account account) {
158 final PresenceGenerator mPresenceGenerator = mXmppConnectionService.getPresenceGenerator();
159 final Jid from = packet.getFrom();
160 if (from == null) {
161 return;
162 }
163 final String type = packet.getAttribute("type");
164 final Contact contact = account.getRoster().getContact(from);
165 if (type == null) {
166 final String presence = from.isBareJid() ? "" : from.getResourcepart();
167 contact.setPresenceName(packet.findChildContent("nick", "http://jabber.org/protocol/nick"));
168 Avatar avatar = Avatar.parsePresence(packet.findChild("x", "vcard-temp:x:update"));
169 if (avatar != null && !contact.isSelf()) {
170 avatar.owner = from.toBareJid();
171 if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
172 if (contact.setAvatar(avatar)) {
173 mXmppConnectionService.getAvatarService().clear(contact);
174 mXmppConnectionService.updateConversationUi();
175 mXmppConnectionService.updateRosterUi();
176 }
177 } else {
178 mXmppConnectionService.fetchAvatar(account, avatar);
179 }
180 }
181 int sizeBefore = contact.getPresences().size();
182
183 ServiceDiscoveryResult disco = null;
184 Element caps = packet.findChild("c", "http://jabber.org/protocol/caps");
185
186 if (caps != null) {
187 disco = mXmppConnectionService.databaseBackend.
188 findDiscoveryResult(caps.getAttribute("hash"), caps.getAttribute("ver"));
189 }
190
191 if (disco != null || caps == null) {
192 contact.updatePresence(presence, new Presence(packet.findChild("show"), disco));
193 } else {
194 IqPacket request = new IqPacket(IqPacket.TYPE.GET);
195 request.setTo(from);
196 request.query("http://jabber.org/protocol/disco#info");
197
198 mXmppConnectionService.sendIqPacket(account, request, new OnIqPacketReceived() {
199 @Override
200 public void onIqPacketReceived(Account account, IqPacket discoPacket) {
201 if (discoPacket.getType() == IqPacket.TYPE.RESULT) {
202 ServiceDiscoveryResult disco = new ServiceDiscoveryResult(discoPacket);
203 contact.updatePresence(presence, new Presence(packet.findChild("show"), disco));
204 mXmppConnectionService.databaseBackend.insertDiscoveryResult(disco);
205 }
206 }
207 });
208 }
209
210 PgpEngine pgp = mXmppConnectionService.getPgpEngine();
211 Element x = packet.findChild("x", "jabber:x:signed");
212 if (pgp != null && x != null) {
213 Element status = packet.findChild("status");
214 String msg = status != null ? status.getContent() : "";
215 contact.setPgpKeyId(pgp.fetchKeyId(account, msg, x.getContent()));
216 }
217 boolean online = sizeBefore < contact.getPresences().size();
218 updateLastseen(packet, account, false);
219 mXmppConnectionService.onContactStatusChanged.onContactStatusChanged(contact, online);
220 } else if (type.equals("unavailable")) {
221 if (from.isBareJid()) {
222 contact.clearPresences();
223 } else {
224 contact.removePresence(from.getResourcepart());
225 }
226 mXmppConnectionService.onContactStatusChanged.onContactStatusChanged(contact, false);
227 } else if (type.equals("subscribe")) {
228 if (contact.getOption(Contact.Options.PREEMPTIVE_GRANT)) {
229 mXmppConnectionService.sendPresencePacket(account,
230 mPresenceGenerator.sendPresenceUpdatesTo(contact));
231 } else {
232 contact.setOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
233 final Conversation conversation = mXmppConnectionService.findOrCreateConversation(
234 account, contact.getJid().toBareJid(), false);
235 final String statusMessage = packet.findChildContent("status");
236 if (statusMessage != null
237 && !statusMessage.isEmpty()
238 && conversation.countMessages() == 0) {
239 conversation.add(new Message(
240 conversation,
241 statusMessage,
242 Message.ENCRYPTION_NONE,
243 Message.STATUS_RECEIVED
244 ));
245 }
246 }
247 }
248 mXmppConnectionService.updateRosterUi();
249 }
250
251 @Override
252 public void onPresencePacketReceived(Account account, PresencePacket packet) {
253 if (packet.hasChild("x", "http://jabber.org/protocol/muc#user")) {
254 this.parseConferencePresence(packet, account);
255 } else if (packet.hasChild("x", "http://jabber.org/protocol/muc")) {
256 this.parseConferencePresence(packet, account);
257 } else {
258 this.parseContactPresence(packet, account);
259 }
260 }
261
262}