1package eu.siacs.conversations.generator;
2
3
4import android.os.Bundle;
5import android.util.Base64;
6import android.util.Log;
7
8import org.whispersystems.libsignal.IdentityKey;
9import org.whispersystems.libsignal.ecc.ECPublicKey;
10import org.whispersystems.libsignal.state.PreKeyRecord;
11import org.whispersystems.libsignal.state.SignedPreKeyRecord;
12
13import java.nio.ByteBuffer;
14import java.security.cert.CertificateEncodingException;
15import java.security.cert.X509Certificate;
16import java.util.ArrayList;
17import java.util.List;
18import java.util.Locale;
19import java.util.Set;
20import java.util.TimeZone;
21import java.util.UUID;
22
23import eu.siacs.conversations.Config;
24import eu.siacs.conversations.R;
25import eu.siacs.conversations.crypto.axolotl.AxolotlService;
26import eu.siacs.conversations.entities.Account;
27import eu.siacs.conversations.entities.Bookmark;
28import eu.siacs.conversations.entities.Conversation;
29import eu.siacs.conversations.entities.DownloadableFile;
30import eu.siacs.conversations.services.MessageArchiveService;
31import eu.siacs.conversations.services.XmppConnectionService;
32import eu.siacs.conversations.xml.Element;
33import eu.siacs.conversations.xml.Namespace;
34import eu.siacs.conversations.xmpp.Jid;
35import eu.siacs.conversations.xmpp.forms.Data;
36import eu.siacs.conversations.xmpp.pep.Avatar;
37import eu.siacs.conversations.xmpp.stanzas.IqPacket;
38
39public class IqGenerator extends AbstractGenerator {
40
41 public IqGenerator(final XmppConnectionService service) {
42 super(service);
43 }
44
45 public IqPacket discoResponse(final Account account, final IqPacket request) {
46 final IqPacket packet = new IqPacket(IqPacket.TYPE.RESULT);
47 packet.setId(request.getId());
48 packet.setTo(request.getFrom());
49 final Element query = packet.addChild("query", "http://jabber.org/protocol/disco#info");
50 query.setAttribute("node", request.query().getAttribute("node"));
51 final Element identity = query.addChild("identity");
52 identity.setAttribute("category", "client");
53 identity.setAttribute("type", getIdentityType());
54 identity.setAttribute("name", getIdentityName());
55 for (final String feature : getFeatures(account)) {
56 query.addChild("feature").setAttribute("var", feature);
57 }
58 return packet;
59 }
60
61 public IqPacket versionResponse(final IqPacket request) {
62 final IqPacket packet = request.generateResponse(IqPacket.TYPE.RESULT);
63 Element query = packet.query("jabber:iq:version");
64 query.addChild("name").setContent(mXmppConnectionService.getString(R.string.app_name));
65 query.addChild("version").setContent(getIdentityVersion());
66 if ("chromium".equals(android.os.Build.BRAND)) {
67 query.addChild("os").setContent("Chrome OS");
68 } else {
69 query.addChild("os").setContent("Android");
70 }
71 return packet;
72 }
73
74 public IqPacket entityTimeResponse(IqPacket request) {
75 final IqPacket packet = request.generateResponse(IqPacket.TYPE.RESULT);
76 Element time = packet.addChild("time", "urn:xmpp:time");
77 final long now = System.currentTimeMillis();
78 time.addChild("utc").setContent(getTimestamp(now));
79 TimeZone ourTimezone = TimeZone.getDefault();
80 long offsetSeconds = ourTimezone.getOffset(now) / 1000;
81 long offsetMinutes = Math.abs((offsetSeconds % 3600) / 60);
82 long offsetHours = offsetSeconds / 3600;
83 String hours;
84 if (offsetHours < 0) {
85 hours = String.format(Locale.US, "%03d", offsetHours);
86 } else {
87 hours = String.format(Locale.US, "%02d", offsetHours);
88 }
89 String minutes = String.format(Locale.US, "%02d", offsetMinutes);
90 time.addChild("tzo").setContent(hours + ":" + minutes);
91 return packet;
92 }
93
94 public IqPacket purgeOfflineMessages() {
95 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
96 packet.addChild("offline", Namespace.FLEXIBLE_OFFLINE_MESSAGE_RETRIEVAL).addChild("purge");
97 return packet;
98 }
99
100 protected IqPacket publish(final String node, final Element item, final Bundle options) {
101 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
102 final Element pubsub = packet.addChild("pubsub", Namespace.PUBSUB);
103 final Element publish = pubsub.addChild("publish");
104 publish.setAttribute("node", node);
105 publish.addChild(item);
106 if (options != null) {
107 final Element publishOptions = pubsub.addChild("publish-options");
108 publishOptions.addChild(Data.create(Namespace.PUBSUB_PUBLISH_OPTIONS, options));
109 }
110 return packet;
111 }
112
113 protected IqPacket publish(final String node, final Element item) {
114 return publish(node, item, null);
115 }
116
117 private IqPacket retrieve(String node, Element item) {
118 final IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
119 final Element pubsub = packet.addChild("pubsub", Namespace.PUBSUB);
120 final Element items = pubsub.addChild("items");
121 items.setAttribute("node", node);
122 if (item != null) {
123 items.addChild(item);
124 }
125 return packet;
126 }
127
128 public IqPacket retrieveBookmarks() {
129 return retrieve(Namespace.BOOKMARKS2, null);
130 }
131
132 public IqPacket publishNick(String nick) {
133 final Element item = new Element("item");
134 item.setAttribute("id", "current");
135 item.addChild("nick", Namespace.NICK).setContent(nick);
136 return publish(Namespace.NICK, item);
137 }
138
139 public IqPacket deleteNode(final String node) {
140 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
141 final Element pubsub = packet.addChild("pubsub", Namespace.PUBSUB_OWNER);
142 pubsub.addChild("delete").setAttribute("node", node);
143 return packet;
144 }
145
146 public IqPacket deleteItem(final String node, final String id) {
147 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
148 final Element pubsub = packet.addChild("pubsub", Namespace.PUBSUB);
149 final Element retract = pubsub.addChild("retract");
150 retract.setAttribute("node", node);
151 retract.setAttribute("notify","true");
152 retract.addChild("item").setAttribute("id", id);
153 return packet;
154 }
155
156 public IqPacket publishAvatar(Avatar avatar, Bundle options) {
157 final Element item = new Element("item");
158 item.setAttribute("id", avatar.sha1sum);
159 final Element data = item.addChild("data", Namespace.AVATAR_DATA);
160 data.setContent(avatar.image);
161 return publish(Namespace.AVATAR_DATA, item, options);
162 }
163
164 public IqPacket publishElement(final String namespace, final Element element, String id, final Bundle options) {
165 final Element item = new Element("item");
166 item.setAttribute("id", id);
167 item.addChild(element);
168 return publish(namespace, item, options);
169 }
170
171 public IqPacket publishAvatarMetadata(final Avatar avatar, final Bundle options) {
172 final Element item = new Element("item");
173 item.setAttribute("id", avatar.sha1sum);
174 final Element metadata = item
175 .addChild("metadata", Namespace.AVATAR_METADATA);
176 final Element info = metadata.addChild("info");
177 info.setAttribute("bytes", avatar.size);
178 info.setAttribute("id", avatar.sha1sum);
179 info.setAttribute("height", avatar.height);
180 info.setAttribute("width", avatar.height);
181 info.setAttribute("type", avatar.type);
182 return publish(Namespace.AVATAR_METADATA, item, options);
183 }
184
185 public IqPacket retrievePepAvatar(final Avatar avatar) {
186 final Element item = new Element("item");
187 item.setAttribute("id", avatar.sha1sum);
188 final IqPacket packet = retrieve(Namespace.AVATAR_DATA, item);
189 packet.setTo(avatar.owner);
190 return packet;
191 }
192
193 public IqPacket retrieveVcardAvatar(final Avatar avatar) {
194 final IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
195 packet.setTo(avatar.owner);
196 packet.addChild("vCard", "vcard-temp");
197 return packet;
198 }
199
200 public IqPacket retrieveVcardAvatar(final Jid to) {
201 final IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
202 packet.setTo(to);
203 packet.addChild("vCard", "vcard-temp");
204 return packet;
205 }
206
207 public IqPacket retrieveAvatarMetaData(final Jid to) {
208 final IqPacket packet = retrieve("urn:xmpp:avatar:metadata", null);
209 if (to != null) {
210 packet.setTo(to);
211 }
212 return packet;
213 }
214
215 public IqPacket retrieveDeviceIds(final Jid to) {
216 final IqPacket packet = retrieve(AxolotlService.PEP_DEVICE_LIST, null);
217 if (to != null) {
218 packet.setTo(to);
219 }
220 return packet;
221 }
222
223 public IqPacket retrieveBundlesForDevice(final Jid to, final int deviceid) {
224 final IqPacket packet = retrieve(AxolotlService.PEP_BUNDLES + ":" + deviceid, null);
225 packet.setTo(to);
226 return packet;
227 }
228
229 public IqPacket retrieveVerificationForDevice(final Jid to, final int deviceid) {
230 final IqPacket packet = retrieve(AxolotlService.PEP_VERIFICATION + ":" + deviceid, null);
231 packet.setTo(to);
232 return packet;
233 }
234
235 public IqPacket publishDeviceIds(final Set<Integer> ids, final Bundle publishOptions) {
236 final Element item = new Element("item");
237 item.setAttribute("id", "current");
238 final Element list = item.addChild("list", AxolotlService.PEP_PREFIX);
239 for (Integer id : ids) {
240 final Element device = new Element("device");
241 device.setAttribute("id", id);
242 list.addChild(device);
243 }
244 return publish(AxolotlService.PEP_DEVICE_LIST, item, publishOptions);
245 }
246
247 public Element publishBookmarkItem(final Bookmark bookmark) {
248 final String name = bookmark.getBookmarkName();
249 final String nick = bookmark.getNick();
250 final boolean autojoin = bookmark.autojoin();
251 final Element conference = new Element("conference", Namespace.BOOKMARKS2);
252 if (name != null) {
253 conference.setAttribute("name", name);
254 }
255 if (nick != null) {
256 conference.addChild("nick").setContent(nick);
257 }
258 conference.setAttribute("autojoin",String.valueOf(autojoin));
259 return conference;
260 }
261
262 public IqPacket publishBundles(final SignedPreKeyRecord signedPreKeyRecord, final IdentityKey identityKey,
263 final Set<PreKeyRecord> preKeyRecords, final int deviceId, Bundle publishOptions) {
264 final Element item = new Element("item");
265 item.setAttribute("id", "current");
266 final Element bundle = item.addChild("bundle", AxolotlService.PEP_PREFIX);
267 final Element signedPreKeyPublic = bundle.addChild("signedPreKeyPublic");
268 signedPreKeyPublic.setAttribute("signedPreKeyId", signedPreKeyRecord.getId());
269 ECPublicKey publicKey = signedPreKeyRecord.getKeyPair().getPublicKey();
270 signedPreKeyPublic.setContent(Base64.encodeToString(publicKey.serialize(), Base64.NO_WRAP));
271 final Element signedPreKeySignature = bundle.addChild("signedPreKeySignature");
272 signedPreKeySignature.setContent(Base64.encodeToString(signedPreKeyRecord.getSignature(), Base64.NO_WRAP));
273 final Element identityKeyElement = bundle.addChild("identityKey");
274 identityKeyElement.setContent(Base64.encodeToString(identityKey.serialize(), Base64.NO_WRAP));
275
276 final Element prekeys = bundle.addChild("prekeys", AxolotlService.PEP_PREFIX);
277 for (PreKeyRecord preKeyRecord : preKeyRecords) {
278 final Element prekey = prekeys.addChild("preKeyPublic");
279 prekey.setAttribute("preKeyId", preKeyRecord.getId());
280 prekey.setContent(Base64.encodeToString(preKeyRecord.getKeyPair().getPublicKey().serialize(), Base64.NO_WRAP));
281 }
282
283 return publish(AxolotlService.PEP_BUNDLES + ":" + deviceId, item, publishOptions);
284 }
285
286 public IqPacket publishVerification(byte[] signature, X509Certificate[] certificates, final int deviceId) {
287 final Element item = new Element("item");
288 item.setAttribute("id", "current");
289 final Element verification = item.addChild("verification", AxolotlService.PEP_PREFIX);
290 final Element chain = verification.addChild("chain");
291 for (int i = 0; i < certificates.length; ++i) {
292 try {
293 Element certificate = chain.addChild("certificate");
294 certificate.setContent(Base64.encodeToString(certificates[i].getEncoded(), Base64.NO_WRAP));
295 certificate.setAttribute("index", i);
296 } catch (CertificateEncodingException e) {
297 Log.d(Config.LOGTAG, "could not encode certificate");
298 }
299 }
300 verification.addChild("signature").setContent(Base64.encodeToString(signature, Base64.NO_WRAP));
301 return publish(AxolotlService.PEP_VERIFICATION + ":" + deviceId, item);
302 }
303
304 public IqPacket queryMessageArchiveManagement(final MessageArchiveService.Query mam) {
305 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
306 final Element query = packet.query(mam.version.namespace);
307 query.setAttribute("queryid", mam.getQueryId());
308 final Data data = new Data();
309 data.setFormType(mam.version.namespace);
310 if (mam.muc()) {
311 packet.setTo(mam.getWith());
312 } else if (mam.getWith() != null) {
313 data.put("with", mam.getWith().toEscapedString());
314 }
315 final long start = mam.getStart();
316 final long end = mam.getEnd();
317 if (start != 0) {
318 data.put("start", getTimestamp(start));
319 }
320 if (end != 0) {
321 data.put("end", getTimestamp(end));
322 }
323 data.submit();
324 query.addChild(data);
325 Element set = query.addChild("set", "http://jabber.org/protocol/rsm");
326 if (mam.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
327 set.addChild("before").setContent(mam.getReference());
328 } else if (mam.getReference() != null) {
329 set.addChild("after").setContent(mam.getReference());
330 }
331 set.addChild("max").setContent(String.valueOf(Config.PAGE_SIZE));
332 return packet;
333 }
334
335 public IqPacket generateGetBlockList() {
336 final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
337 iq.addChild("blocklist", Namespace.BLOCKING);
338
339 return iq;
340 }
341
342 public IqPacket generateSetBlockRequest(final Jid jid, boolean reportSpam) {
343 final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
344 final Element block = iq.addChild("block", Namespace.BLOCKING);
345 final Element item = block.addChild("item").setAttribute("jid", jid);
346 if (reportSpam) {
347 item.addChild("report", "urn:xmpp:reporting:0").addChild("spam");
348 }
349 Log.d(Config.LOGTAG, iq.toString());
350 return iq;
351 }
352
353 public IqPacket generateSetUnblockRequest(final Jid jid) {
354 final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
355 final Element block = iq.addChild("unblock", Namespace.BLOCKING);
356 block.addChild("item").setAttribute("jid", jid);
357 return iq;
358 }
359
360 public IqPacket generateSetPassword(final Account account, final String newPassword) {
361 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
362 packet.setTo(account.getDomain());
363 final Element query = packet.addChild("query", Namespace.REGISTER);
364 final Jid jid = account.getJid();
365 query.addChild("username").setContent(jid.getLocal());
366 query.addChild("password").setContent(newPassword);
367 return packet;
368 }
369
370 public IqPacket changeAffiliation(Conversation conference, Jid jid, String affiliation) {
371 List<Jid> jids = new ArrayList<>();
372 jids.add(jid);
373 return changeAffiliation(conference, jids, affiliation);
374 }
375
376 public IqPacket changeAffiliation(Conversation conference, List<Jid> jids, String affiliation) {
377 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
378 packet.setTo(conference.getJid().asBareJid());
379 packet.setFrom(conference.getAccount().getJid());
380 Element query = packet.query("http://jabber.org/protocol/muc#admin");
381 for (Jid jid : jids) {
382 Element item = query.addChild("item");
383 item.setAttribute("jid", jid);
384 item.setAttribute("affiliation", affiliation);
385 }
386 return packet;
387 }
388
389 public IqPacket changeRole(Conversation conference, String nick, String role) {
390 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
391 packet.setTo(conference.getJid().asBareJid());
392 packet.setFrom(conference.getAccount().getJid());
393 Element item = packet.query("http://jabber.org/protocol/muc#admin").addChild("item");
394 item.setAttribute("nick", nick);
395 item.setAttribute("role", role);
396 return packet;
397 }
398
399 public IqPacket requestHttpUploadSlot(Jid host, DownloadableFile file, String mime) {
400 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
401 packet.setTo(host);
402 Element request = packet.addChild("request", Namespace.HTTP_UPLOAD);
403 request.setAttribute("filename", convertFilename(file.getName()));
404 request.setAttribute("size", file.getExpectedSize());
405 request.setAttribute("content-type", mime);
406 return packet;
407 }
408
409 public IqPacket requestHttpUploadLegacySlot(Jid host, DownloadableFile file, String mime) {
410 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
411 packet.setTo(host);
412 Element request = packet.addChild("request", Namespace.HTTP_UPLOAD_LEGACY);
413 request.addChild("filename").setContent(convertFilename(file.getName()));
414 request.addChild("size").setContent(String.valueOf(file.getExpectedSize()));
415 request.addChild("content-type").setContent(mime);
416 return packet;
417 }
418
419 private static String convertFilename(String name) {
420 int pos = name.indexOf('.');
421 if (pos != -1) {
422 try {
423 UUID uuid = UUID.fromString(name.substring(0, pos));
424 ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
425 bb.putLong(uuid.getMostSignificantBits());
426 bb.putLong(uuid.getLeastSignificantBits());
427 return Base64.encodeToString(bb.array(), Base64.URL_SAFE | Base64.NO_PADDING | Base64.NO_WRAP) + name.substring(pos);
428 } catch (Exception e) {
429 return name;
430 }
431 } else {
432 return name;
433 }
434 }
435
436 public IqPacket generateCreateAccountWithCaptcha(Account account, String id, Data data) {
437 final IqPacket register = new IqPacket(IqPacket.TYPE.SET);
438 register.setFrom(account.getJid().asBareJid());
439 register.setTo(account.getDomain());
440 register.setId(id);
441 Element query = register.query(Namespace.REGISTER);
442 if (data != null) {
443 query.addChild(data);
444 }
445 return register;
446 }
447
448 public IqPacket pushTokenToAppServer(Jid appServer, String token, String deviceId) {
449 return pushTokenToAppServer(appServer, token, deviceId, null);
450 }
451
452 public IqPacket pushTokenToAppServer(Jid appServer, String token, String deviceId, Jid muc) {
453 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
454 packet.setTo(appServer);
455 final Element command = packet.addChild("command", Namespace.COMMANDS);
456 command.setAttribute("node", "register-push-fcm");
457 command.setAttribute("action", "execute");
458 final Data data = new Data();
459 data.put("token", token);
460 data.put("android-id", deviceId);
461 if (muc != null) {
462 data.put("muc", muc.toEscapedString());
463 }
464 data.submit();
465 command.addChild(data);
466 return packet;
467 }
468
469 public IqPacket unregisterChannelOnAppServer(Jid appServer, String deviceId, String channel) {
470 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
471 packet.setTo(appServer);
472 final Element command = packet.addChild("command", Namespace.COMMANDS);
473 command.setAttribute("node", "unregister-push-fcm");
474 command.setAttribute("action", "execute");
475 final Data data = new Data();
476 data.put("channel", channel);
477 data.put("android-id", deviceId);
478 data.submit();
479 command.addChild(data);
480 return packet;
481 }
482
483 public IqPacket enablePush(final Jid jid, final String node, final String secret) {
484 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
485 Element enable = packet.addChild("enable", Namespace.PUSH);
486 enable.setAttribute("jid", jid);
487 enable.setAttribute("node", node);
488 if (secret != null) {
489 Data data = new Data();
490 data.setFormType(Namespace.PUBSUB_PUBLISH_OPTIONS);
491 data.put("secret", secret);
492 data.submit();
493 enable.addChild(data);
494 }
495 return packet;
496 }
497
498 public IqPacket disablePush(final Jid jid, final String node) {
499 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
500 Element disable = packet.addChild("disable", Namespace.PUSH);
501 disable.setAttribute("jid", jid);
502 disable.setAttribute("node", node);
503 return packet;
504 }
505
506 public IqPacket queryAffiliation(Conversation conversation, String affiliation) {
507 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
508 packet.setTo(conversation.getJid().asBareJid());
509 packet.query("http://jabber.org/protocol/muc#admin").addChild("item").setAttribute("affiliation", affiliation);
510 return packet;
511 }
512
513 public static Bundle defaultGroupChatConfiguration() {
514 Bundle options = new Bundle();
515 options.putString("muc#roomconfig_persistentroom", "1");
516 options.putString("muc#roomconfig_membersonly", "1");
517 options.putString("muc#roomconfig_publicroom", "0");
518 options.putString("muc#roomconfig_whois", "anyone");
519 options.putString("muc#roomconfig_changesubject", "0");
520 options.putString("muc#roomconfig_allowinvites", "0");
521 options.putString("muc#roomconfig_enablearchiving", "1"); //prosody
522 options.putString("mam", "1"); //ejabberd community
523 options.putString("muc#roomconfig_mam", "1"); //ejabberd saas
524 return options;
525 }
526
527 public static Bundle defaultChannelConfiguration() {
528 Bundle options = new Bundle();
529 options.putString("muc#roomconfig_persistentroom", "1");
530 options.putString("muc#roomconfig_membersonly", "0");
531 options.putString("muc#roomconfig_publicroom", "1");
532 options.putString("muc#roomconfig_whois", "moderators");
533 options.putString("muc#roomconfig_changesubject", "0");
534 options.putString("muc#roomconfig_enablearchiving", "1"); //prosody
535 options.putString("mam", "1"); //ejabberd community
536 options.putString("muc#roomconfig_mam", "1"); //ejabberd saas
537 return options;
538 }
539
540 public IqPacket requestPubsubConfiguration(Jid jid, String node) {
541 return pubsubConfiguration(jid, node, null);
542 }
543
544 public IqPacket publishPubsubConfiguration(Jid jid, String node, Data data) {
545 return pubsubConfiguration(jid, node, data);
546 }
547
548 private IqPacket pubsubConfiguration(Jid jid, String node, Data data) {
549 IqPacket packet = new IqPacket(data == null ? IqPacket.TYPE.GET : IqPacket.TYPE.SET);
550 packet.setTo(jid);
551 Element pubsub = packet.addChild("pubsub", "http://jabber.org/protocol/pubsub#owner");
552 Element configure = pubsub.addChild("configure").setAttribute("node", node);
553 if (data != null) {
554 configure.addChild(data);
555 }
556 return packet;
557 }
558
559 public IqPacket queryDiscoItems(Jid jid) {
560 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
561 packet.setTo(jid);
562 packet.addChild("query",Namespace.DISCO_ITEMS);
563 return packet;
564 }
565
566 public IqPacket queryDiscoInfo(Jid jid) {
567 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
568 packet.setTo(jid);
569 packet.addChild("query",Namespace.DISCO_INFO);
570 return packet;
571 }
572}