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.addChild("nick", Namespace.NICK).setContent(nick);
135 return publish(Namespace.NICK, item);
136 }
137
138 public IqPacket deleteNode(String node) {
139 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
140 final Element pubsub = packet.addChild("pubsub", Namespace.PUBSUB_OWNER);
141 pubsub.addChild("delete").setAttribute("node", node);
142 return packet;
143 }
144
145 public IqPacket deleteItem(final String node, final String id) {
146 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
147 final Element pubsub = packet.addChild("pubsub", Namespace.PUBSUB);
148 final Element retract = pubsub.addChild("retract");
149 retract.setAttribute("node", node);
150 retract.setAttribute("notify","true");
151 retract.addChild("item").setAttribute("id", id);
152 return packet;
153 }
154
155 public IqPacket publishAvatar(Avatar avatar, Bundle options) {
156 final Element item = new Element("item");
157 item.setAttribute("id", avatar.sha1sum);
158 final Element data = item.addChild("data", "urn:xmpp:avatar:data");
159 data.setContent(avatar.image);
160 return publish("urn:xmpp:avatar:data", item, options);
161 }
162
163 public IqPacket publishElement(final String namespace, final Element element, String id, final Bundle options) {
164 final Element item = new Element("item");
165 item.setAttribute("id", id);
166 item.addChild(element);
167 return publish(namespace, item, options);
168 }
169
170 public IqPacket publishAvatarMetadata(final Avatar avatar, final Bundle options) {
171 final Element item = new Element("item");
172 item.setAttribute("id", avatar.sha1sum);
173 final Element metadata = item
174 .addChild("metadata", "urn:xmpp:avatar:metadata");
175 final Element info = metadata.addChild("info");
176 info.setAttribute("bytes", avatar.size);
177 info.setAttribute("id", avatar.sha1sum);
178 info.setAttribute("height", avatar.height);
179 info.setAttribute("width", avatar.height);
180 info.setAttribute("type", avatar.type);
181 return publish("urn:xmpp:avatar:metadata", item, options);
182 }
183
184 public IqPacket retrievePepAvatar(final Avatar avatar) {
185 final Element item = new Element("item");
186 item.setAttribute("id", avatar.sha1sum);
187 final IqPacket packet = retrieve("urn:xmpp:avatar:data", item);
188 packet.setTo(avatar.owner);
189 return packet;
190 }
191
192 public IqPacket retrieveVcardAvatar(final Avatar avatar) {
193 final IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
194 packet.setTo(avatar.owner);
195 packet.addChild("vCard", "vcard-temp");
196 return packet;
197 }
198
199 public IqPacket retrieveAvatarMetaData(final Jid to) {
200 final IqPacket packet = retrieve("urn:xmpp:avatar:metadata", null);
201 if (to != null) {
202 packet.setTo(to);
203 }
204 return packet;
205 }
206
207 public IqPacket retrieveDeviceIds(final Jid to) {
208 final IqPacket packet = retrieve(AxolotlService.PEP_DEVICE_LIST, null);
209 if (to != null) {
210 packet.setTo(to);
211 }
212 return packet;
213 }
214
215 public IqPacket retrieveBundlesForDevice(final Jid to, final int deviceid) {
216 final IqPacket packet = retrieve(AxolotlService.PEP_BUNDLES + ":" + deviceid, null);
217 packet.setTo(to);
218 return packet;
219 }
220
221 public IqPacket retrieveVerificationForDevice(final Jid to, final int deviceid) {
222 final IqPacket packet = retrieve(AxolotlService.PEP_VERIFICATION + ":" + deviceid, null);
223 packet.setTo(to);
224 return packet;
225 }
226
227 public IqPacket publishDeviceIds(final Set<Integer> ids, final Bundle publishOptions) {
228 final Element item = new Element("item");
229 item.setAttribute("id", "current");
230 final Element list = item.addChild("list", AxolotlService.PEP_PREFIX);
231 for (Integer id : ids) {
232 final Element device = new Element("device");
233 device.setAttribute("id", id);
234 list.addChild(device);
235 }
236 return publish(AxolotlService.PEP_DEVICE_LIST, item, publishOptions);
237 }
238
239 public Element publishBookmarkItem(final Bookmark bookmark) {
240 final String name = bookmark.getBookmarkName();
241 final String nick = bookmark.getNick();
242 final boolean autojoin = bookmark.autojoin();
243 final Element conference = new Element("conference", Namespace.BOOKMARKS2);
244 if (name != null) {
245 conference.setAttribute("name", name);
246 }
247 if (nick != null) {
248 conference.addChild("nick").setContent(nick);
249 }
250 conference.setAttribute("autojoin",String.valueOf(autojoin));
251 return conference;
252 }
253
254 public IqPacket publishBundles(final SignedPreKeyRecord signedPreKeyRecord, final IdentityKey identityKey,
255 final Set<PreKeyRecord> preKeyRecords, final int deviceId, Bundle publishOptions) {
256 final Element item = new Element("item");
257 item.setAttribute("id", "current");
258 final Element bundle = item.addChild("bundle", AxolotlService.PEP_PREFIX);
259 final Element signedPreKeyPublic = bundle.addChild("signedPreKeyPublic");
260 signedPreKeyPublic.setAttribute("signedPreKeyId", signedPreKeyRecord.getId());
261 ECPublicKey publicKey = signedPreKeyRecord.getKeyPair().getPublicKey();
262 signedPreKeyPublic.setContent(Base64.encodeToString(publicKey.serialize(), Base64.NO_WRAP));
263 final Element signedPreKeySignature = bundle.addChild("signedPreKeySignature");
264 signedPreKeySignature.setContent(Base64.encodeToString(signedPreKeyRecord.getSignature(), Base64.NO_WRAP));
265 final Element identityKeyElement = bundle.addChild("identityKey");
266 identityKeyElement.setContent(Base64.encodeToString(identityKey.serialize(), Base64.NO_WRAP));
267
268 final Element prekeys = bundle.addChild("prekeys", AxolotlService.PEP_PREFIX);
269 for (PreKeyRecord preKeyRecord : preKeyRecords) {
270 final Element prekey = prekeys.addChild("preKeyPublic");
271 prekey.setAttribute("preKeyId", preKeyRecord.getId());
272 prekey.setContent(Base64.encodeToString(preKeyRecord.getKeyPair().getPublicKey().serialize(), Base64.NO_WRAP));
273 }
274
275 return publish(AxolotlService.PEP_BUNDLES + ":" + deviceId, item, publishOptions);
276 }
277
278 public IqPacket publishVerification(byte[] signature, X509Certificate[] certificates, final int deviceId) {
279 final Element item = new Element("item");
280 item.setAttribute("id", "current");
281 final Element verification = item.addChild("verification", AxolotlService.PEP_PREFIX);
282 final Element chain = verification.addChild("chain");
283 for (int i = 0; i < certificates.length; ++i) {
284 try {
285 Element certificate = chain.addChild("certificate");
286 certificate.setContent(Base64.encodeToString(certificates[i].getEncoded(), Base64.NO_WRAP));
287 certificate.setAttribute("index", i);
288 } catch (CertificateEncodingException e) {
289 Log.d(Config.LOGTAG, "could not encode certificate");
290 }
291 }
292 verification.addChild("signature").setContent(Base64.encodeToString(signature, Base64.NO_WRAP));
293 return publish(AxolotlService.PEP_VERIFICATION + ":" + deviceId, item);
294 }
295
296 public IqPacket queryMessageArchiveManagement(final MessageArchiveService.Query mam) {
297 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
298 final Element query = packet.query(mam.version.namespace);
299 query.setAttribute("queryid", mam.getQueryId());
300 final Data data = new Data();
301 data.setFormType(mam.version.namespace);
302 if (mam.muc()) {
303 packet.setTo(mam.getWith());
304 } else if (mam.getWith() != null) {
305 data.put("with", mam.getWith().toEscapedString());
306 }
307 final long start = mam.getStart();
308 final long end = mam.getEnd();
309 if (start != 0) {
310 data.put("start", getTimestamp(start));
311 }
312 if (end != 0) {
313 data.put("end", getTimestamp(end));
314 }
315 data.submit();
316 query.addChild(data);
317 Element set = query.addChild("set", "http://jabber.org/protocol/rsm");
318 if (mam.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
319 set.addChild("before").setContent(mam.getReference());
320 } else if (mam.getReference() != null) {
321 set.addChild("after").setContent(mam.getReference());
322 }
323 set.addChild("max").setContent(String.valueOf(Config.PAGE_SIZE));
324 return packet;
325 }
326
327 public IqPacket generateGetBlockList() {
328 final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
329 iq.addChild("blocklist", Namespace.BLOCKING);
330
331 return iq;
332 }
333
334 public IqPacket generateSetBlockRequest(final Jid jid, boolean reportSpam) {
335 final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
336 final Element block = iq.addChild("block", Namespace.BLOCKING);
337 final Element item = block.addChild("item").setAttribute("jid", jid);
338 if (reportSpam) {
339 item.addChild("report", "urn:xmpp:reporting:0").addChild("spam");
340 }
341 Log.d(Config.LOGTAG, iq.toString());
342 return iq;
343 }
344
345 public IqPacket generateSetUnblockRequest(final Jid jid) {
346 final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
347 final Element block = iq.addChild("unblock", Namespace.BLOCKING);
348 block.addChild("item").setAttribute("jid", jid);
349 return iq;
350 }
351
352 public IqPacket generateSetPassword(final Account account, final String newPassword) {
353 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
354 packet.setTo(account.getDomain());
355 final Element query = packet.addChild("query", Namespace.REGISTER);
356 final Jid jid = account.getJid();
357 query.addChild("username").setContent(jid.getLocal());
358 query.addChild("password").setContent(newPassword);
359 return packet;
360 }
361
362 public IqPacket changeAffiliation(Conversation conference, Jid jid, String affiliation) {
363 List<Jid> jids = new ArrayList<>();
364 jids.add(jid);
365 return changeAffiliation(conference, jids, affiliation);
366 }
367
368 public IqPacket changeAffiliation(Conversation conference, List<Jid> jids, String affiliation) {
369 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
370 packet.setTo(conference.getJid().asBareJid());
371 packet.setFrom(conference.getAccount().getJid());
372 Element query = packet.query("http://jabber.org/protocol/muc#admin");
373 for (Jid jid : jids) {
374 Element item = query.addChild("item");
375 item.setAttribute("jid", jid);
376 item.setAttribute("affiliation", affiliation);
377 }
378 return packet;
379 }
380
381 public IqPacket changeRole(Conversation conference, String nick, String role) {
382 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
383 packet.setTo(conference.getJid().asBareJid());
384 packet.setFrom(conference.getAccount().getJid());
385 Element item = packet.query("http://jabber.org/protocol/muc#admin").addChild("item");
386 item.setAttribute("nick", nick);
387 item.setAttribute("role", role);
388 return packet;
389 }
390
391 public IqPacket requestHttpUploadSlot(Jid host, DownloadableFile file, String mime) {
392 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
393 packet.setTo(host);
394 Element request = packet.addChild("request", Namespace.HTTP_UPLOAD);
395 request.setAttribute("filename", convertFilename(file.getName()));
396 request.setAttribute("size", file.getExpectedSize());
397 request.setAttribute("content-type", mime);
398 return packet;
399 }
400
401 public IqPacket requestHttpUploadLegacySlot(Jid host, DownloadableFile file, String mime) {
402 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
403 packet.setTo(host);
404 Element request = packet.addChild("request", Namespace.HTTP_UPLOAD_LEGACY);
405 request.addChild("filename").setContent(convertFilename(file.getName()));
406 request.addChild("size").setContent(String.valueOf(file.getExpectedSize()));
407 request.addChild("content-type").setContent(mime);
408 return packet;
409 }
410
411 private static String convertFilename(String name) {
412 int pos = name.indexOf('.');
413 if (pos != -1) {
414 try {
415 UUID uuid = UUID.fromString(name.substring(0, pos));
416 ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
417 bb.putLong(uuid.getMostSignificantBits());
418 bb.putLong(uuid.getLeastSignificantBits());
419 return Base64.encodeToString(bb.array(), Base64.URL_SAFE | Base64.NO_PADDING | Base64.NO_WRAP) + name.substring(pos);
420 } catch (Exception e) {
421 return name;
422 }
423 } else {
424 return name;
425 }
426 }
427
428 public IqPacket generateCreateAccountWithCaptcha(Account account, String id, Data data) {
429 final IqPacket register = new IqPacket(IqPacket.TYPE.SET);
430 register.setFrom(account.getJid().asBareJid());
431 register.setTo(account.getDomain());
432 register.setId(id);
433 Element query = register.query(Namespace.REGISTER);
434 if (data != null) {
435 query.addChild(data);
436 }
437 return register;
438 }
439
440 public IqPacket pushTokenToAppServer(Jid appServer, String token, String deviceId) {
441 return pushTokenToAppServer(appServer, token, deviceId, null);
442 }
443
444 public IqPacket pushTokenToAppServer(Jid appServer, String token, String deviceId, Jid muc) {
445 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
446 packet.setTo(appServer);
447 final Element command = packet.addChild("command", Namespace.COMMANDS);
448 command.setAttribute("node", "register-push-fcm");
449 command.setAttribute("action", "execute");
450 final Data data = new Data();
451 data.put("token", token);
452 data.put("android-id", deviceId);
453 if (muc != null) {
454 data.put("muc", muc.toEscapedString());
455 }
456 data.submit();
457 command.addChild(data);
458 return packet;
459 }
460
461 public IqPacket unregisterChannelOnAppServer(Jid appServer, String deviceId, String channel) {
462 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
463 packet.setTo(appServer);
464 final Element command = packet.addChild("command", Namespace.COMMANDS);
465 command.setAttribute("node", "unregister-push-fcm");
466 command.setAttribute("action", "execute");
467 final Data data = new Data();
468 data.put("channel", channel);
469 data.put("android-id", deviceId);
470 data.submit();
471 command.addChild(data);
472 return packet;
473 }
474
475 public IqPacket enablePush(final Jid jid, final String node, final String secret) {
476 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
477 Element enable = packet.addChild("enable", Namespace.PUSH);
478 enable.setAttribute("jid", jid);
479 enable.setAttribute("node", node);
480 if (secret != null) {
481 Data data = new Data();
482 data.setFormType(Namespace.PUBSUB_PUBLISH_OPTIONS);
483 data.put("secret", secret);
484 data.submit();
485 enable.addChild(data);
486 }
487 return packet;
488 }
489
490 public IqPacket disablePush(final Jid jid, final String node) {
491 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
492 Element disable = packet.addChild("disable", Namespace.PUSH);
493 disable.setAttribute("jid", jid);
494 disable.setAttribute("node", node);
495 return packet;
496 }
497
498 public IqPacket queryAffiliation(Conversation conversation, String affiliation) {
499 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
500 packet.setTo(conversation.getJid().asBareJid());
501 packet.query("http://jabber.org/protocol/muc#admin").addChild("item").setAttribute("affiliation", affiliation);
502 return packet;
503 }
504
505 public static Bundle defaultGroupChatConfiguration() {
506 Bundle options = new Bundle();
507 options.putString("muc#roomconfig_persistentroom", "1");
508 options.putString("muc#roomconfig_membersonly", "1");
509 options.putString("muc#roomconfig_publicroom", "0");
510 options.putString("muc#roomconfig_whois", "anyone");
511 options.putString("muc#roomconfig_changesubject", "0");
512 options.putString("muc#roomconfig_allowinvites", "0");
513 options.putString("muc#roomconfig_enablearchiving", "1"); //prosody
514 options.putString("mam", "1"); //ejabberd community
515 options.putString("muc#roomconfig_mam", "1"); //ejabberd saas
516 return options;
517 }
518
519 public static Bundle defaultChannelConfiguration() {
520 Bundle options = new Bundle();
521 options.putString("muc#roomconfig_persistentroom", "1");
522 options.putString("muc#roomconfig_membersonly", "0");
523 options.putString("muc#roomconfig_publicroom", "1");
524 options.putString("muc#roomconfig_whois", "moderators");
525 options.putString("muc#roomconfig_changesubject", "0");
526 options.putString("muc#roomconfig_enablearchiving", "1"); //prosody
527 options.putString("mam", "1"); //ejabberd community
528 options.putString("muc#roomconfig_mam", "1"); //ejabberd saas
529 return options;
530 }
531
532 public IqPacket requestPubsubConfiguration(Jid jid, String node) {
533 return pubsubConfiguration(jid, node, null);
534 }
535
536 public IqPacket publishPubsubConfiguration(Jid jid, String node, Data data) {
537 return pubsubConfiguration(jid, node, data);
538 }
539
540 private IqPacket pubsubConfiguration(Jid jid, String node, Data data) {
541 IqPacket packet = new IqPacket(data == null ? IqPacket.TYPE.GET : IqPacket.TYPE.SET);
542 packet.setTo(jid);
543 Element pubsub = packet.addChild("pubsub", "http://jabber.org/protocol/pubsub#owner");
544 Element configure = pubsub.addChild("configure").setAttribute("node", node);
545 if (data != null) {
546 configure.addChild(data);
547 }
548 return packet;
549 }
550
551 public IqPacket queryDiscoItems(Jid jid) {
552 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
553 packet.setTo(jid);
554 packet.addChild("query",Namespace.DISCO_ITEMS);
555 return packet;
556 }
557
558 public IqPacket queryDiscoInfo(Jid jid) {
559 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
560 packet.setTo(jid);
561 packet.addChild("query",Namespace.DISCO_INFO);
562 return packet;
563 }
564}