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(conversation);
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 user.setAvatar(avatar);
90 } else {
91 mXmppConnectionService.fetchAvatar(mucOptions.getAccount(), avatar);
92 }
93 }
94 }
95 }
96 } else if (type.equals("unavailable")) {
97 if (codes.contains(MucOptions.STATUS_CODE_SELF_PRESENCE) ||
98 packet.getFrom().equals(mucOptions.getConversation().getJid())) {
99 if (codes.contains(MucOptions.STATUS_CODE_CHANGED_NICK)) {
100 mucOptions.mNickChangingInProgress = true;
101 } else if (codes.contains(MucOptions.STATUS_CODE_KICKED)) {
102 mucOptions.setError(MucOptions.KICKED_FROM_ROOM);
103 } else if (codes.contains(MucOptions.STATUS_CODE_BANNED)) {
104 mucOptions.setError(MucOptions.ERROR_BANNED);
105 } else if (codes.contains(MucOptions.STATUS_CODE_LOST_MEMBERSHIP)) {
106 mucOptions.setError(MucOptions.ERROR_MEMBERS_ONLY);
107 } else {
108 mucOptions.setError(MucOptions.ERROR_UNKNOWN);
109 }
110 } else if (!from.isBareJid()){
111 mucOptions.deleteUser(from.getResourcepart());
112 }
113 } else if (type.equals("error")) {
114 Element error = packet.findChild("error");
115 if (error != null && error.hasChild("conflict")) {
116 if (mucOptions.online()) {
117 if (mucOptions.onRenameListener != null) {
118 mucOptions.onRenameListener.onFailure();
119 }
120 } else {
121 mucOptions.setError(MucOptions.ERROR_NICK_IN_USE);
122 }
123 } else if (error != null && error.hasChild("not-authorized")) {
124 mucOptions.setError(MucOptions.ERROR_PASSWORD_REQUIRED);
125 } else if (error != null && error.hasChild("forbidden")) {
126 mucOptions.setError(MucOptions.ERROR_BANNED);
127 } else if (error != null && error.hasChild("registration-required")) {
128 mucOptions.setError(MucOptions.ERROR_MEMBERS_ONLY);
129 }
130 }
131 }
132 }
133
134 private static List<String> getStatusCodes(Element x) {
135 List<String> codes = new ArrayList<>();
136 if (x != null) {
137 for (Element child : x.getChildren()) {
138 if (child.getName().equals("status")) {
139 String code = child.getAttribute("code");
140 if (code != null) {
141 codes.add(code);
142 }
143 }
144 }
145 }
146 return codes;
147 }
148
149 public void parseContactPresence(final PresencePacket packet, final Account account) {
150 final PresenceGenerator mPresenceGenerator = mXmppConnectionService.getPresenceGenerator();
151 final Jid from = packet.getFrom();
152 if (from == null) {
153 return;
154 }
155 final String type = packet.getAttribute("type");
156 final Contact contact = account.getRoster().getContact(from);
157 if (type == null) {
158 String presence = from.isBareJid() ? "" : from.getResourcepart();
159 contact.setPresenceName(packet.findChildContent("nick", "http://jabber.org/protocol/nick"));
160 Avatar avatar = Avatar.parsePresence(packet.findChild("x", "vcard-temp:x:update"));
161 if (avatar != null && !contact.isSelf()) {
162 avatar.owner = from.toBareJid();
163 if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
164 if (contact.setAvatar(avatar)) {
165 mXmppConnectionService.getAvatarService().clear(contact);
166 mXmppConnectionService.updateConversationUi();
167 mXmppConnectionService.updateRosterUi();
168 }
169 } else {
170 mXmppConnectionService.fetchAvatar(account, avatar);
171 }
172 }
173 int sizeBefore = contact.getPresences().size();
174 contact.updatePresence(presence, Presences.parseShow(packet.findChild("show")));
175 PgpEngine pgp = mXmppConnectionService.getPgpEngine();
176 Element x = packet.findChild("x", "jabber:x:signed");
177 if (pgp != null && x != null) {
178 Element status = packet.findChild("status");
179 String msg = status != null ? status.getContent() : "";
180 contact.setPgpKeyId(pgp.fetchKeyId(account, msg, x.getContent()));
181 }
182 boolean online = sizeBefore < contact.getPresences().size();
183 updateLastseen(packet, account, false);
184 mXmppConnectionService.onContactStatusChanged.onContactStatusChanged(contact, online);
185 } else if (type.equals("unavailable")) {
186 if (from.isBareJid()) {
187 contact.clearPresences();
188 } else {
189 contact.removePresence(from.getResourcepart());
190 }
191 mXmppConnectionService.onContactStatusChanged.onContactStatusChanged(contact, false);
192 } else if (type.equals("subscribe")) {
193 if (contact.getOption(Contact.Options.PREEMPTIVE_GRANT)) {
194 mXmppConnectionService.sendPresencePacket(account,
195 mPresenceGenerator.sendPresenceUpdatesTo(contact));
196 } else {
197 contact.setOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
198 final String statusMessage = packet.findChildContent("status");
199 if (statusMessage != null && !statusMessage.isEmpty()) {
200 final Conversation conversation = mXmppConnectionService.findOrCreateConversation(
201 account, contact.getJid().toBareJid(), false);
202 conversation.add(new Message(
203 conversation,
204 statusMessage,
205 Message.ENCRYPTION_NONE,
206 Message.STATUS_RECEIVED
207 ));
208 }
209 }
210 }
211 mXmppConnectionService.updateRosterUi();
212 }
213
214 @Override
215 public void onPresencePacketReceived(Account account, PresencePacket packet) {
216 if (packet.hasChild("x", "http://jabber.org/protocol/muc#user")) {
217 this.parseConferencePresence(packet, account);
218 } else if (packet.hasChild("x", "http://jabber.org/protocol/muc")) {
219 this.parseConferencePresence(packet, account);
220 } else {
221 this.parseContactPresence(packet, account);
222 }
223 }
224
225}