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.entities.Account;
13import eu.siacs.conversations.entities.Contact;
14import eu.siacs.conversations.entities.Conversation;
15import eu.siacs.conversations.entities.Message;
16import eu.siacs.conversations.entities.MucOptions;
17import eu.siacs.conversations.entities.Presence;
18import eu.siacs.conversations.generator.IqGenerator;
19import eu.siacs.conversations.generator.PresenceGenerator;
20import eu.siacs.conversations.services.XmppConnectionService;
21import eu.siacs.conversations.xml.Element;
22import eu.siacs.conversations.xml.Namespace;
23import eu.siacs.conversations.xmpp.OnPresencePacketReceived;
24import eu.siacs.conversations.xmpp.jid.Jid;
25import eu.siacs.conversations.xmpp.pep.Avatar;
26import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
27
28public class PresenceParser extends AbstractParser implements
29 OnPresencePacketReceived {
30
31 public PresenceParser(XmppConnectionService service) {
32 super(service);
33 }
34
35 public void parseConferencePresence(PresencePacket packet, Account account) {
36 final Conversation conversation = packet.getFrom() == null ? null : mXmppConnectionService.find(account, packet.getFrom().toBareJid());
37 if (conversation != null) {
38 final MucOptions mucOptions = conversation.getMucOptions();
39 boolean before = mucOptions.online();
40 int count = mucOptions.getUserCount();
41 final List<MucOptions.User> tileUserBefore = mucOptions.getUsers(5);
42 processConferencePresence(packet, conversation);
43 final List<MucOptions.User> tileUserAfter = mucOptions.getUsers(5);
44 if (!tileUserAfter.equals(tileUserBefore)) {
45 mXmppConnectionService.getAvatarService().clear(mucOptions);
46 }
47 if (before != mucOptions.online() || (mucOptions.online() && count != mucOptions.getUserCount())) {
48 mXmppConnectionService.updateConversationUi();
49 } else if (mucOptions.online()) {
50 mXmppConnectionService.updateMucRosterUi();
51 }
52 }
53 }
54
55 private void processConferencePresence(PresencePacket packet, Conversation conversation) {
56 MucOptions mucOptions = conversation.getMucOptions();
57 final Jid jid = conversation.getAccount().getJid();
58 final Jid from = packet.getFrom();
59 if (!from.isBareJid()) {
60 final String type = packet.getAttribute("type");
61 final Element x = packet.findChild("x", "http://jabber.org/protocol/muc#user");
62 Avatar avatar = Avatar.parsePresence(packet.findChild("x", "vcard-temp:x:update"));
63 final List<String> codes = getStatusCodes(x);
64 if (type == null) {
65 if (x != null) {
66 Element item = x.findChild("item");
67 if (item != null && !from.isBareJid()) {
68 mucOptions.setError(MucOptions.Error.NONE);
69 MucOptions.User user = parseItem(conversation, item, from);
70 if (codes.contains(MucOptions.STATUS_CODE_SELF_PRESENCE)
71 || ((codes.isEmpty() || codes.contains(MucOptions.STATUS_CODE_ROOM_CREATED)) && jid.equals(item.getAttributeAsJid("jid")))) {
72 mucOptions.setOnline();
73 mucOptions.setSelf(user);
74 if (mucOptions.onRenameListener != null) {
75 mucOptions.onRenameListener.onSuccess();
76 mucOptions.onRenameListener = null;
77 }
78 }
79 mucOptions.updateUser(user);
80 if (codes.contains(MucOptions.STATUS_CODE_ROOM_CREATED) && mucOptions.autoPushConfiguration()) {
81 Log.d(Config.LOGTAG,mucOptions.getAccount().getJid().toBareJid()
82 +": room '"
83 +mucOptions.getConversation().getJid().toBareJid()
84 +"' created. pushing default configuration");
85 mXmppConnectionService.pushConferenceConfiguration(mucOptions.getConversation(),
86 IqGenerator.defaultRoomConfiguration(),
87 null);
88 }
89 if (mXmppConnectionService.getPgpEngine() != null) {
90 Element signed = packet.findChild("x", "jabber:x:signed");
91 if (signed != null) {
92 Element status = packet.findChild("status");
93 String msg = status == null ? "" : status.getContent();
94 long keyId = mXmppConnectionService.getPgpEngine().fetchKeyId(mucOptions.getAccount(), msg, signed.getContent());
95 if (keyId != 0) {
96 user.setPgpKeyId(keyId);
97 }
98 }
99 }
100 if (avatar != null) {
101 avatar.owner = from;
102 if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
103 if (user.setAvatar(avatar)) {
104 mXmppConnectionService.getAvatarService().clear(user);
105 }
106 } else if (mXmppConnectionService.isDataSaverDisabled()) {
107 mXmppConnectionService.fetchAvatar(mucOptions.getAccount(), avatar);
108 }
109 }
110 }
111 }
112 } else if (type.equals("unavailable")) {
113 if (codes.contains(MucOptions.STATUS_CODE_SELF_PRESENCE)) {
114 if (codes.contains(MucOptions.STATUS_CODE_KICKED)) {
115 mucOptions.setError(MucOptions.Error.KICKED);
116 } else if (codes.contains(MucOptions.STATUS_CODE_BANNED)) {
117 mucOptions.setError(MucOptions.Error.BANNED);
118 } else if (codes.contains(MucOptions.STATUS_CODE_LOST_MEMBERSHIP)) {
119 mucOptions.setError(MucOptions.Error.MEMBERS_ONLY);
120 } else if (codes.contains(MucOptions.STATUS_CODE_AFFILIATION_CHANGE)) {
121 mucOptions.setError(MucOptions.Error.MEMBERS_ONLY);
122 } else if (codes.contains(MucOptions.STATUS_CODE_SHUTDOWN)) {
123 mucOptions.setError(MucOptions.Error.SHUTDOWN);
124 } else if (!codes.contains(MucOptions.STATUS_CODE_CHANGED_NICK)) {
125 mucOptions.setError(MucOptions.Error.UNKNOWN);
126 Log.d(Config.LOGTAG, "unknown error in conference: " + packet);
127 }
128 } else if (!from.isBareJid()){
129 Element item = x.findChild("item");
130 if (item != null) {
131 mucOptions.updateUser(parseItem(conversation, item, from));
132 }
133 MucOptions.User user = mucOptions.deleteUser(from);
134 if (user != null) {
135 mXmppConnectionService.getAvatarService().clear(user);
136 }
137 }
138 } else if (type.equals("error")) {
139 Element error = packet.findChild("error");
140 if (error != null && error.hasChild("conflict")) {
141 if (mucOptions.online()) {
142 if (mucOptions.onRenameListener != null) {
143 mucOptions.onRenameListener.onFailure();
144 mucOptions.onRenameListener = null;
145 }
146 } else {
147 mucOptions.setError(MucOptions.Error.NICK_IN_USE);
148 }
149 } else if (error != null && error.hasChild("not-authorized")) {
150 mucOptions.setError(MucOptions.Error.PASSWORD_REQUIRED);
151 } else if (error != null && error.hasChild("forbidden")) {
152 mucOptions.setError(MucOptions.Error.BANNED);
153 } else if (error != null && error.hasChild("registration-required")) {
154 mucOptions.setError(MucOptions.Error.MEMBERS_ONLY);
155 }
156 }
157 }
158 }
159
160 private static List<String> getStatusCodes(Element x) {
161 List<String> codes = new ArrayList<>();
162 if (x != null) {
163 for (Element child : x.getChildren()) {
164 if (child.getName().equals("status")) {
165 String code = child.getAttribute("code");
166 if (code != null) {
167 codes.add(code);
168 }
169 }
170 }
171 }
172 return codes;
173 }
174
175 public void parseContactPresence(final PresencePacket packet, final Account account) {
176 final PresenceGenerator mPresenceGenerator = mXmppConnectionService.getPresenceGenerator();
177 final Jid from = packet.getFrom();
178 if (from == null || from.equals(account.getJid())) {
179 return;
180 }
181 final String type = packet.getAttribute("type");
182 final Contact contact = account.getRoster().getContact(from);
183 if (type == null) {
184 final String resource = from.isBareJid() ? "" : from.getResourcepart();
185 contact.setPresenceName(packet.findChildContent("nick", "http://jabber.org/protocol/nick"));
186 Avatar avatar = Avatar.parsePresence(packet.findChild("x", "vcard-temp:x:update"));
187 if (avatar != null && (!contact.isSelf() || account.getAvatar() == null)) {
188 avatar.owner = from.toBareJid();
189 if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
190 if (avatar.owner.equals(account.getJid().toBareJid())) {
191 account.setAvatar(avatar.getFilename());
192 mXmppConnectionService.databaseBackend.updateAccount(account);
193 mXmppConnectionService.getAvatarService().clear(account);
194 mXmppConnectionService.updateConversationUi();
195 mXmppConnectionService.updateAccountUi();
196 } else if (contact.setAvatar(avatar)) {
197 mXmppConnectionService.getAvatarService().clear(contact);
198 mXmppConnectionService.updateConversationUi();
199 mXmppConnectionService.updateRosterUi();
200 }
201 } else if (mXmppConnectionService.isDataSaverDisabled()){
202 mXmppConnectionService.fetchAvatar(account, avatar);
203 }
204 }
205 int sizeBefore = contact.getPresences().size();
206
207 final String show = packet.findChildContent("show");
208 final Element caps = packet.findChild("c", "http://jabber.org/protocol/caps");
209 final String message = packet.findChildContent("status");
210 final Presence presence = Presence.parse(show, caps, message);
211 contact.updatePresence(resource, presence);
212 if (presence.hasCaps()) {
213 mXmppConnectionService.fetchCaps(account, from, presence);
214 }
215
216 final Element idle = packet.findChild("idle", Namespace.IDLE);
217 if (idle != null) {
218 try {
219 final String since = idle.getAttribute("since");
220 contact.setLastseen(AbstractParser.parseTimestamp(since));
221 contact.flagInactive();
222 } catch (NullPointerException | ParseException e) {
223 if (contact.setLastseen(AbstractParser.parseTimestamp(packet))) {
224 contact.flagActive();
225 }
226 }
227 } else {
228 if (contact.setLastseen(AbstractParser.parseTimestamp(packet))) {
229 contact.flagActive();
230 }
231 }
232
233 PgpEngine pgp = mXmppConnectionService.getPgpEngine();
234 Element x = packet.findChild("x", "jabber:x:signed");
235 if (pgp != null && x != null) {
236 Element status = packet.findChild("status");
237 String msg = status != null ? status.getContent() : "";
238 contact.setPgpKeyId(pgp.fetchKeyId(account, msg, x.getContent()));
239 }
240 boolean online = sizeBefore < contact.getPresences().size();
241 mXmppConnectionService.onContactStatusChanged.onContactStatusChanged(contact, online);
242 } else if (type.equals("unavailable")) {
243 if (contact.setLastseen(AbstractParser.parseTimestamp(packet))) {
244 contact.flagInactive();
245 }
246 if (from.isBareJid()) {
247 contact.clearPresences();
248 } else {
249 contact.removePresence(from.getResourcepart());
250 }
251 mXmppConnectionService.onContactStatusChanged.onContactStatusChanged(contact, false);
252 } else if (type.equals("subscribe")) {
253 if (contact.getOption(Contact.Options.PREEMPTIVE_GRANT)) {
254 mXmppConnectionService.sendPresencePacket(account,
255 mPresenceGenerator.sendPresenceUpdatesTo(contact));
256 } else {
257 contact.setOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
258 final Conversation conversation = mXmppConnectionService.findOrCreateConversation(
259 account, contact.getJid().toBareJid(), false, false);
260 final String statusMessage = packet.findChildContent("status");
261 if (statusMessage != null
262 && !statusMessage.isEmpty()
263 && conversation.countMessages() == 0) {
264 conversation.add(new Message(
265 conversation,
266 statusMessage,
267 Message.ENCRYPTION_NONE,
268 Message.STATUS_RECEIVED
269 ));
270 }
271 }
272 }
273 mXmppConnectionService.updateRosterUi();
274 }
275
276 @Override
277 public void onPresencePacketReceived(Account account, PresencePacket packet) {
278 if (packet.hasChild("x", "http://jabber.org/protocol/muc#user")) {
279 this.parseConferencePresence(packet, account);
280 } else if (packet.hasChild("x", "http://jabber.org/protocol/muc")) {
281 this.parseConferencePresence(packet, account);
282 } else {
283 this.parseContactPresence(packet, account);
284 }
285 }
286
287}