1package eu.siacs.conversations.generator;
2
3import android.os.Bundle;
4import android.util.Base64;
5import android.util.Log;
6import eu.siacs.conversations.Config;
7import eu.siacs.conversations.crypto.axolotl.AxolotlService;
8import eu.siacs.conversations.entities.Account;
9import eu.siacs.conversations.entities.Conversation;
10import eu.siacs.conversations.entities.DownloadableFile;
11import eu.siacs.conversations.services.MessageArchiveService;
12import eu.siacs.conversations.services.XmppConnectionService;
13import eu.siacs.conversations.xml.Element;
14import eu.siacs.conversations.xml.Namespace;
15import eu.siacs.conversations.xmpp.Jid;
16import eu.siacs.conversations.xmpp.forms.Data;
17import eu.siacs.conversations.xmpp.pep.Avatar;
18import im.conversations.android.xmpp.model.stanza.Iq;
19import im.conversations.android.xmpp.model.upload.Request;
20import java.nio.ByteBuffer;
21import java.security.cert.CertificateEncodingException;
22import java.security.cert.X509Certificate;
23import java.util.ArrayList;
24import java.util.List;
25import java.util.Set;
26import java.util.UUID;
27import org.whispersystems.libsignal.IdentityKey;
28import org.whispersystems.libsignal.ecc.ECPublicKey;
29import org.whispersystems.libsignal.state.PreKeyRecord;
30import org.whispersystems.libsignal.state.SignedPreKeyRecord;
31
32public class IqGenerator extends AbstractGenerator {
33
34 public IqGenerator(final XmppConnectionService service) {
35 super(service);
36 }
37
38 public static Iq purgeOfflineMessages() {
39 final Iq packet = new Iq(Iq.Type.SET);
40 packet.addChild("offline", Namespace.FLEXIBLE_OFFLINE_MESSAGE_RETRIEVAL).addChild("purge");
41 return packet;
42 }
43
44 protected Iq publish(final String node, final Element item, final Bundle options) {
45 final var packet = new Iq(Iq.Type.SET);
46 final Element pubsub = packet.addChild("pubsub", Namespace.PUBSUB);
47 final Element publish = pubsub.addChild("publish");
48 publish.setAttribute("node", node);
49 publish.addChild(item);
50 if (options != null) {
51 final Element publishOptions = pubsub.addChild("publish-options");
52 publishOptions.addChild(Data.create(Namespace.PUBSUB_PUBLISH_OPTIONS, options));
53 }
54 return packet;
55 }
56
57 protected Iq publish(final String node, final Element item) {
58 return publish(node, item, null);
59 }
60
61 private Iq retrieve(String node, Element item) {
62 final var packet = new Iq(Iq.Type.GET);
63 final Element pubsub = packet.addChild("pubsub", Namespace.PUBSUB);
64 final Element items = pubsub.addChild("items");
65 items.setAttribute("node", node);
66 if (item != null) {
67 items.addChild(item);
68 }
69 return packet;
70 }
71
72 public Iq retrieveBookmarks() {
73 return retrieve(Namespace.BOOKMARKS2, null);
74 }
75
76 public Iq retrieveMds() {
77 return retrieve(Namespace.MDS_DISPLAYED, null);
78 }
79
80 public Iq publishNick(String nick) {
81 final Element item = new Element("item");
82 item.setAttribute("id", "current");
83 item.addChild("nick", Namespace.NICK).setContent(nick);
84 return publish(Namespace.NICK, item);
85 }
86
87 public Iq deleteNode(final String node) {
88 final var packet = new Iq(Iq.Type.SET);
89 final Element pubsub = packet.addChild("pubsub", Namespace.PUBSUB_OWNER);
90 pubsub.addChild("delete").setAttribute("node", node);
91 return packet;
92 }
93
94 public Iq deleteItem(final String node, final String id) {
95 final var packet = new Iq(Iq.Type.SET);
96 final Element pubsub = packet.addChild("pubsub", Namespace.PUBSUB);
97 final Element retract = pubsub.addChild("retract");
98 retract.setAttribute("node", node);
99 retract.setAttribute("notify", "true");
100 retract.addChild("item").setAttribute("id", id);
101 return packet;
102 }
103
104 public Iq publishAvatar(Avatar avatar, Bundle options) {
105 final Element item = new Element("item");
106 item.setAttribute("id", avatar.sha1sum);
107 final Element data = item.addChild("data", Namespace.AVATAR_DATA);
108 data.setContent(avatar.image);
109 return publish(Namespace.AVATAR_DATA, item, options);
110 }
111
112 public Iq publishElement(
113 final String namespace, final Element element, String id, final Bundle options) {
114 final Element item = new Element("item");
115 item.setAttribute("id", id);
116 item.addChild(element);
117 return publish(namespace, item, options);
118 }
119
120 public Iq publishAvatarMetadata(final Avatar avatar, final Bundle options) {
121 final Element item = new Element("item");
122 item.setAttribute("id", avatar.sha1sum);
123 final Element metadata = item.addChild("metadata", Namespace.AVATAR_METADATA);
124 final Element info = metadata.addChild("info");
125 info.setAttribute("bytes", avatar.size);
126 info.setAttribute("id", avatar.sha1sum);
127 info.setAttribute("height", avatar.height);
128 info.setAttribute("width", avatar.height);
129 info.setAttribute("type", avatar.type);
130 return publish(Namespace.AVATAR_METADATA, item, options);
131 }
132
133 public Iq retrievePepAvatar(final Avatar avatar) {
134 final Element item = new Element("item");
135 item.setAttribute("id", avatar.sha1sum);
136 final var packet = retrieve(Namespace.AVATAR_DATA, item);
137 packet.setTo(avatar.owner);
138 return packet;
139 }
140
141 public Iq retrieveVcardAvatar(final Avatar avatar) {
142 final Iq packet = new Iq(Iq.Type.GET);
143 packet.setTo(avatar.owner);
144 packet.addChild("vCard", "vcard-temp");
145 return packet;
146 }
147
148 public Iq retrieveVcardAvatar(final Jid to) {
149 final Iq packet = new Iq(Iq.Type.GET);
150 packet.setTo(to);
151 packet.addChild("vCard", "vcard-temp");
152 return packet;
153 }
154
155 public Iq retrieveAvatarMetaData(final Jid to) {
156 final Iq packet = retrieve("urn:xmpp:avatar:metadata", null);
157 if (to != null) {
158 packet.setTo(to);
159 }
160 return packet;
161 }
162
163 public Iq retrieveDeviceIds(final Jid to) {
164 final var packet = retrieve(AxolotlService.PEP_DEVICE_LIST, null);
165 if (to != null) {
166 packet.setTo(to);
167 }
168 return packet;
169 }
170
171 public Iq retrieveBundlesForDevice(final Jid to, final int deviceid) {
172 final var packet = retrieve(AxolotlService.PEP_BUNDLES + ":" + deviceid, null);
173 packet.setTo(to);
174 return packet;
175 }
176
177 public Iq retrieveVerificationForDevice(final Jid to, final int deviceid) {
178 final var packet = retrieve(AxolotlService.PEP_VERIFICATION + ":" + deviceid, null);
179 packet.setTo(to);
180 return packet;
181 }
182
183 public Iq publishDeviceIds(final Set<Integer> ids, final Bundle publishOptions) {
184 final Element item = new Element("item");
185 item.setAttribute("id", "current");
186 final Element list = item.addChild("list", AxolotlService.PEP_PREFIX);
187 for (Integer id : ids) {
188 final Element device = new Element("device");
189 device.setAttribute("id", id);
190 list.addChild(device);
191 }
192 return publish(AxolotlService.PEP_DEVICE_LIST, item, publishOptions);
193 }
194
195 public Iq publishBundles(
196 final SignedPreKeyRecord signedPreKeyRecord,
197 final IdentityKey identityKey,
198 final Set<PreKeyRecord> preKeyRecords,
199 final int deviceId,
200 Bundle publishOptions) {
201 final Element item = new Element("item");
202 item.setAttribute("id", "current");
203 final Element bundle = item.addChild("bundle", AxolotlService.PEP_PREFIX);
204 final Element signedPreKeyPublic = bundle.addChild("signedPreKeyPublic");
205 signedPreKeyPublic.setAttribute("signedPreKeyId", signedPreKeyRecord.getId());
206 ECPublicKey publicKey = signedPreKeyRecord.getKeyPair().getPublicKey();
207 signedPreKeyPublic.setContent(Base64.encodeToString(publicKey.serialize(), Base64.NO_WRAP));
208 final Element signedPreKeySignature = bundle.addChild("signedPreKeySignature");
209 signedPreKeySignature.setContent(
210 Base64.encodeToString(signedPreKeyRecord.getSignature(), Base64.NO_WRAP));
211 final Element identityKeyElement = bundle.addChild("identityKey");
212 identityKeyElement.setContent(
213 Base64.encodeToString(identityKey.serialize(), Base64.NO_WRAP));
214
215 final Element prekeys = bundle.addChild("prekeys", AxolotlService.PEP_PREFIX);
216 for (PreKeyRecord preKeyRecord : preKeyRecords) {
217 final Element prekey = prekeys.addChild("preKeyPublic");
218 prekey.setAttribute("preKeyId", preKeyRecord.getId());
219 prekey.setContent(
220 Base64.encodeToString(
221 preKeyRecord.getKeyPair().getPublicKey().serialize(), Base64.NO_WRAP));
222 }
223
224 return publish(AxolotlService.PEP_BUNDLES + ":" + deviceId, item, publishOptions);
225 }
226
227 public Iq publishVerification(
228 byte[] signature, X509Certificate[] certificates, final int deviceId) {
229 final Element item = new Element("item");
230 item.setAttribute("id", "current");
231 final Element verification = item.addChild("verification", AxolotlService.PEP_PREFIX);
232 final Element chain = verification.addChild("chain");
233 for (int i = 0; i < certificates.length; ++i) {
234 try {
235 Element certificate = chain.addChild("certificate");
236 certificate.setContent(
237 Base64.encodeToString(certificates[i].getEncoded(), Base64.NO_WRAP));
238 certificate.setAttribute("index", i);
239 } catch (CertificateEncodingException e) {
240 Log.d(Config.LOGTAG, "could not encode certificate");
241 }
242 }
243 verification
244 .addChild("signature")
245 .setContent(Base64.encodeToString(signature, Base64.NO_WRAP));
246 return publish(AxolotlService.PEP_VERIFICATION + ":" + deviceId, item);
247 }
248
249 public Iq queryMessageArchiveManagement(final MessageArchiveService.Query mam) {
250 final Iq packet = new Iq(Iq.Type.SET);
251 final Element query = packet.query(mam.version.namespace);
252 query.setAttribute("queryid", mam.getQueryId());
253 final Data data = new Data();
254 data.setFormType(mam.version.namespace);
255 if (mam.muc()) {
256 packet.setTo(mam.getWith());
257 } else if (mam.getWith() != null) {
258 data.put("with", mam.getWith().toString());
259 }
260 final long start = mam.getStart();
261 final long end = mam.getEnd();
262 if (start != 0) {
263 data.put("start", getTimestamp(start));
264 }
265 if (end != 0) {
266 data.put("end", getTimestamp(end));
267 }
268 data.submit();
269 query.addChild(data);
270 Element set = query.addChild("set", "http://jabber.org/protocol/rsm");
271 if (mam.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
272 set.addChild("before").setContent(mam.getReference());
273 } else if (mam.getReference() != null) {
274 set.addChild("after").setContent(mam.getReference());
275 }
276 set.addChild("max").setContent(String.valueOf(Config.PAGE_SIZE));
277 return packet;
278 }
279
280 public Iq generateSetPassword(final Account account, final String newPassword) {
281 final Iq packet = new Iq(Iq.Type.SET);
282 packet.setTo(account.getDomain());
283 final Element query = packet.addChild("query", Namespace.REGISTER);
284 final Jid jid = account.getJid();
285 query.addChild("username").setContent(jid.getLocal());
286 query.addChild("password").setContent(newPassword);
287 return packet;
288 }
289
290 public Iq changeAffiliation(Conversation conference, Jid jid, String affiliation) {
291 List<Jid> jids = new ArrayList<>();
292 jids.add(jid);
293 return changeAffiliation(conference, jids, affiliation);
294 }
295
296 public Iq changeAffiliation(Conversation conference, List<Jid> jids, String affiliation) {
297 final Iq packet = new Iq(Iq.Type.SET);
298 packet.setTo(conference.getJid().asBareJid());
299 packet.setFrom(conference.getAccount().getJid());
300 Element query = packet.query("http://jabber.org/protocol/muc#admin");
301 for (Jid jid : jids) {
302 Element item = query.addChild("item");
303 item.setAttribute("jid", jid);
304 item.setAttribute("affiliation", affiliation);
305 }
306 return packet;
307 }
308
309 public Iq changeRole(Conversation conference, String nick, String role) {
310 final Iq packet = new Iq(Iq.Type.SET);
311 packet.setTo(conference.getJid().asBareJid());
312 packet.setFrom(conference.getAccount().getJid());
313 Element item = packet.query("http://jabber.org/protocol/muc#admin").addChild("item");
314 item.setAttribute("nick", nick);
315 item.setAttribute("role", role);
316 return packet;
317 }
318
319 public Iq requestHttpUploadSlot(
320 final Jid host, final DownloadableFile file, final String mime) {
321 final Iq packet = new Iq(Iq.Type.GET);
322 packet.setTo(host);
323 final var request = packet.addExtension(new Request());
324 request.setFilename(convertFilename(file.getName()));
325 request.setSize(file.getExpectedSize());
326 return packet;
327 }
328
329 private static String convertFilename(String name) {
330 int pos = name.indexOf('.');
331 if (pos != -1) {
332 try {
333 UUID uuid = UUID.fromString(name.substring(0, pos));
334 ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
335 bb.putLong(uuid.getMostSignificantBits());
336 bb.putLong(uuid.getLeastSignificantBits());
337 return Base64.encodeToString(
338 bb.array(), Base64.URL_SAFE | Base64.NO_PADDING | Base64.NO_WRAP)
339 + name.substring(pos);
340 } catch (Exception e) {
341 return name;
342 }
343 } else {
344 return name;
345 }
346 }
347
348 public static Iq generateCreateAccountWithCaptcha(
349 final Account account, final String id, final Data data) {
350 final Iq register = new Iq(Iq.Type.SET);
351 register.setFrom(account.getJid().asBareJid());
352 register.setTo(account.getDomain());
353 register.setId(id);
354 Element query = register.query(Namespace.REGISTER);
355 if (data != null) {
356 query.addChild(data);
357 }
358 return register;
359 }
360
361 public Iq pushTokenToAppServer(Jid appServer, String token, String deviceId) {
362 return pushTokenToAppServer(appServer, token, deviceId, null);
363 }
364
365 public Iq pushTokenToAppServer(Jid appServer, String token, String deviceId, Jid muc) {
366 final Iq packet = new Iq(Iq.Type.SET);
367 packet.setTo(appServer);
368 final Element command = packet.addChild("command", Namespace.COMMANDS);
369 command.setAttribute("node", "register-push-fcm");
370 command.setAttribute("action", "execute");
371 final Data data = new Data();
372 data.put("token", token);
373 data.put("android-id", deviceId);
374 if (muc != null) {
375 data.put("muc", muc.toString());
376 }
377 data.submit();
378 command.addChild(data);
379 return packet;
380 }
381
382 public Iq unregisterChannelOnAppServer(Jid appServer, String deviceId, String channel) {
383 final Iq packet = new Iq(Iq.Type.SET);
384 packet.setTo(appServer);
385 final Element command = packet.addChild("command", Namespace.COMMANDS);
386 command.setAttribute("node", "unregister-push-fcm");
387 command.setAttribute("action", "execute");
388 final Data data = new Data();
389 data.put("channel", channel);
390 data.put("android-id", deviceId);
391 data.submit();
392 command.addChild(data);
393 return packet;
394 }
395
396 public Iq enablePush(final Jid jid, final String node, final String secret) {
397 final Iq packet = new Iq(Iq.Type.SET);
398 Element enable = packet.addChild("enable", Namespace.PUSH);
399 enable.setAttribute("jid", jid);
400 enable.setAttribute("node", node);
401 if (secret != null) {
402 Data data = new Data();
403 data.setFormType(Namespace.PUBSUB_PUBLISH_OPTIONS);
404 data.put("secret", secret);
405 data.submit();
406 enable.addChild(data);
407 }
408 return packet;
409 }
410
411 public Iq disablePush(final Jid jid, final String node) {
412 Iq packet = new Iq(Iq.Type.SET);
413 Element disable = packet.addChild("disable", Namespace.PUSH);
414 disable.setAttribute("jid", jid);
415 disable.setAttribute("node", node);
416 return packet;
417 }
418
419 public Iq queryAffiliation(Conversation conversation, String affiliation) {
420 final Iq packet = new Iq(Iq.Type.GET);
421 packet.setTo(conversation.getJid().asBareJid());
422 packet.query("http://jabber.org/protocol/muc#admin")
423 .addChild("item")
424 .setAttribute("affiliation", affiliation);
425 return packet;
426 }
427
428 public static Bundle defaultGroupChatConfiguration() {
429 Bundle options = new Bundle();
430 options.putString("muc#roomconfig_persistentroom", "1");
431 options.putString("muc#roomconfig_membersonly", "1");
432 options.putString("muc#roomconfig_publicroom", "0");
433 options.putString("muc#roomconfig_whois", "anyone");
434 options.putString("muc#roomconfig_changesubject", "0");
435 options.putString("muc#roomconfig_allowinvites", "0");
436 options.putString("muc#roomconfig_enablearchiving", "1"); // prosody
437 options.putString("mam", "1"); // ejabberd community
438 options.putString("muc#roomconfig_mam", "1"); // ejabberd saas
439 return options;
440 }
441
442 public static Bundle defaultChannelConfiguration() {
443 Bundle options = new Bundle();
444 options.putString("muc#roomconfig_persistentroom", "1");
445 options.putString("muc#roomconfig_membersonly", "0");
446 options.putString("muc#roomconfig_publicroom", "1");
447 options.putString("muc#roomconfig_whois", "moderators");
448 options.putString("muc#roomconfig_changesubject", "0");
449 options.putString("muc#roomconfig_enablearchiving", "1"); // prosody
450 options.putString("mam", "1"); // ejabberd community
451 options.putString("muc#roomconfig_mam", "1"); // ejabberd saas
452 return options;
453 }
454
455 public Iq requestPubsubConfiguration(Jid jid, String node) {
456 return pubsubConfiguration(jid, node, null);
457 }
458
459 public Iq publishPubsubConfiguration(Jid jid, String node, Data data) {
460 return pubsubConfiguration(jid, node, data);
461 }
462
463 private Iq pubsubConfiguration(Jid jid, String node, Data data) {
464 final Iq packet = new Iq(data == null ? Iq.Type.GET : Iq.Type.SET);
465 packet.setTo(jid);
466 Element pubsub = packet.addChild("pubsub", "http://jabber.org/protocol/pubsub#owner");
467 Element configure = pubsub.addChild("configure").setAttribute("node", node);
468 if (data != null) {
469 configure.addChild(data);
470 }
471 return packet;
472 }
473}