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