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.Namespace;
33import eu.siacs.conversations.xml.Element;
34import eu.siacs.conversations.xmpp.forms.Data;
35import eu.siacs.conversations.xmpp.pep.Avatar;
36import eu.siacs.conversations.xmpp.stanzas.IqPacket;
37import rocks.xmpp.addr.Jid;
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 publishNick(String nick) {
129 final Element item = new Element("item");
130 item.addChild("nick", Namespace.NICK).setContent(nick);
131 return publish(Namespace.NICK, item);
132 }
133
134 public IqPacket deleteNode(String node) {
135 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
136 final Element pubsub = packet.addChild("pubsub", Namespace.PUBSUB_OWNER);
137 pubsub.addChild("delete").setAttribute("node",node);
138 return packet;
139 }
140
141 public IqPacket publishAvatar(Avatar avatar, Bundle options) {
142 final Element item = new Element("item");
143 item.setAttribute("id", avatar.sha1sum);
144 final Element data = item.addChild("data", "urn:xmpp:avatar:data");
145 data.setContent(avatar.image);
146 return publish("urn:xmpp:avatar:data", item, options);
147 }
148
149 public IqPacket publishElement(final String namespace,final Element element, final Bundle options) {
150 final Element item = new Element("item");
151 item.setAttribute("id","current");
152 item.addChild(element);
153 return publish(namespace, item, options);
154 }
155
156 public IqPacket publishAvatarMetadata(final Avatar avatar, final Bundle options) {
157 final Element item = new Element("item");
158 item.setAttribute("id", avatar.sha1sum);
159 final Element metadata = item
160 .addChild("metadata", "urn:xmpp:avatar:metadata");
161 final Element info = metadata.addChild("info");
162 info.setAttribute("bytes", avatar.size);
163 info.setAttribute("id", avatar.sha1sum);
164 info.setAttribute("height", avatar.height);
165 info.setAttribute("width", avatar.height);
166 info.setAttribute("type", avatar.type);
167 return publish("urn:xmpp:avatar:metadata", item, options);
168 }
169
170 public IqPacket retrievePepAvatar(final Avatar avatar) {
171 final Element item = new Element("item");
172 item.setAttribute("id", avatar.sha1sum);
173 final IqPacket packet = retrieve("urn:xmpp:avatar:data", item);
174 packet.setTo(avatar.owner);
175 return packet;
176 }
177
178 public IqPacket retrieveVcardAvatar(final Avatar avatar) {
179 final IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
180 packet.setTo(avatar.owner);
181 packet.addChild("vCard", "vcard-temp");
182 return packet;
183 }
184
185 public IqPacket retrieveAvatarMetaData(final Jid to) {
186 final IqPacket packet = retrieve("urn:xmpp:avatar:metadata", null);
187 if (to != null) {
188 packet.setTo(to);
189 }
190 return packet;
191 }
192
193 public IqPacket retrieveDeviceIds(final Jid to) {
194 final IqPacket packet = retrieve(AxolotlService.PEP_DEVICE_LIST, null);
195 if (to != null) {
196 packet.setTo(to);
197 }
198 return packet;
199 }
200
201 public IqPacket retrieveBundlesForDevice(final Jid to, final int deviceid) {
202 final IqPacket packet = retrieve(AxolotlService.PEP_BUNDLES + ":" + deviceid, null);
203 packet.setTo(to);
204 return packet;
205 }
206
207 public IqPacket retrieveVerificationForDevice(final Jid to, final int deviceid) {
208 final IqPacket packet = retrieve(AxolotlService.PEP_VERIFICATION + ":" + deviceid, null);
209 packet.setTo(to);
210 return packet;
211 }
212
213 public IqPacket publishDeviceIds(final Set<Integer> ids, final Bundle publishOptions) {
214 final Element item = new Element("item");
215 item.setAttribute("id", "current");
216 final Element list = item.addChild("list", AxolotlService.PEP_PREFIX);
217 for (Integer id : ids) {
218 final Element device = new Element("device");
219 device.setAttribute("id", id);
220 list.addChild(device);
221 }
222 return publish(AxolotlService.PEP_DEVICE_LIST, item, publishOptions);
223 }
224
225 public IqPacket publishBundles(final SignedPreKeyRecord signedPreKeyRecord, final IdentityKey identityKey,
226 final Set<PreKeyRecord> preKeyRecords, final int deviceId, Bundle publishOptions) {
227 final Element item = new Element("item");
228 item.setAttribute("id", "current");
229 final Element bundle = item.addChild("bundle", AxolotlService.PEP_PREFIX);
230 final Element signedPreKeyPublic = bundle.addChild("signedPreKeyPublic");
231 signedPreKeyPublic.setAttribute("signedPreKeyId", signedPreKeyRecord.getId());
232 ECPublicKey publicKey = signedPreKeyRecord.getKeyPair().getPublicKey();
233 signedPreKeyPublic.setContent(Base64.encodeToString(publicKey.serialize(), Base64.DEFAULT));
234 final Element signedPreKeySignature = bundle.addChild("signedPreKeySignature");
235 signedPreKeySignature.setContent(Base64.encodeToString(signedPreKeyRecord.getSignature(), Base64.DEFAULT));
236 final Element identityKeyElement = bundle.addChild("identityKey");
237 identityKeyElement.setContent(Base64.encodeToString(identityKey.serialize(), Base64.DEFAULT));
238
239 final Element prekeys = bundle.addChild("prekeys", AxolotlService.PEP_PREFIX);
240 for (PreKeyRecord preKeyRecord : preKeyRecords) {
241 final Element prekey = prekeys.addChild("preKeyPublic");
242 prekey.setAttribute("preKeyId", preKeyRecord.getId());
243 prekey.setContent(Base64.encodeToString(preKeyRecord.getKeyPair().getPublicKey().serialize(), Base64.DEFAULT));
244 }
245
246 return publish(AxolotlService.PEP_BUNDLES + ":" + deviceId, item, publishOptions);
247 }
248
249 public IqPacket publishVerification(byte[] signature, X509Certificate[] certificates, final int deviceId) {
250 final Element item = new Element("item");
251 item.setAttribute("id", "current");
252 final Element verification = item.addChild("verification", AxolotlService.PEP_PREFIX);
253 final Element chain = verification.addChild("chain");
254 for (int i = 0; i < certificates.length; ++i) {
255 try {
256 Element certificate = chain.addChild("certificate");
257 certificate.setContent(Base64.encodeToString(certificates[i].getEncoded(), Base64.DEFAULT));
258 certificate.setAttribute("index", i);
259 } catch (CertificateEncodingException e) {
260 Log.d(Config.LOGTAG, "could not encode certificate");
261 }
262 }
263 verification.addChild("signature").setContent(Base64.encodeToString(signature, Base64.DEFAULT));
264 return publish(AxolotlService.PEP_VERIFICATION + ":" + deviceId, item);
265 }
266
267 public IqPacket queryMessageArchiveManagement(final MessageArchiveService.Query mam) {
268 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
269 final Element query = packet.query(mam.version.namespace);
270 query.setAttribute("queryid", mam.getQueryId());
271 final Data data = new Data();
272 data.setFormType(mam.version.namespace);
273 if (mam.muc()) {
274 packet.setTo(mam.getWith());
275 } else if (mam.getWith() != null) {
276 data.put("with", mam.getWith().toString());
277 }
278 final long start = mam.getStart();
279 final long end = mam.getEnd();
280 if (start != 0) {
281 data.put("start", getTimestamp(start));
282 }
283 if (end != 0) {
284 data.put("end", getTimestamp(end));
285 }
286 data.submit();
287 query.addChild(data);
288 Element set = query.addChild("set", "http://jabber.org/protocol/rsm");
289 if (mam.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
290 set.addChild("before").setContent(mam.getReference());
291 } else if (mam.getReference() != null) {
292 set.addChild("after").setContent(mam.getReference());
293 }
294 set.addChild("max").setContent(String.valueOf(Config.PAGE_SIZE));
295 return packet;
296 }
297
298 public IqPacket generateGetBlockList() {
299 final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
300 iq.addChild("blocklist", Namespace.BLOCKING);
301
302 return iq;
303 }
304
305 public IqPacket generateSetBlockRequest(final Jid jid, boolean reportSpam) {
306 final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
307 final Element block = iq.addChild("block", Namespace.BLOCKING);
308 final Element item = block.addChild("item").setAttribute("jid", jid.toEscapedString());
309 if (reportSpam) {
310 item.addChild("report", "urn:xmpp:reporting:0").addChild("spam");
311 }
312 Log.d(Config.LOGTAG, iq.toString());
313 return iq;
314 }
315
316 public IqPacket generateSetUnblockRequest(final Jid jid) {
317 final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
318 final Element block = iq.addChild("unblock", Namespace.BLOCKING);
319 block.addChild("item").setAttribute("jid", jid.toEscapedString());
320 return iq;
321 }
322
323 public IqPacket generateSetPassword(final Account account, final String newPassword) {
324 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
325 packet.setTo(Jid.of(account.getServer()));
326 final Element query = packet.addChild("query", Namespace.REGISTER);
327 final Jid jid = account.getJid();
328 query.addChild("username").setContent(jid.getLocal());
329 query.addChild("password").setContent(newPassword);
330 return packet;
331 }
332
333 public IqPacket changeAffiliation(Conversation conference, Jid jid, String affiliation) {
334 List<Jid> jids = new ArrayList<>();
335 jids.add(jid);
336 return changeAffiliation(conference, jids, affiliation);
337 }
338
339 public IqPacket changeAffiliation(Conversation conference, List<Jid> jids, String affiliation) {
340 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
341 packet.setTo(conference.getJid().asBareJid());
342 packet.setFrom(conference.getAccount().getJid());
343 Element query = packet.query("http://jabber.org/protocol/muc#admin");
344 for (Jid jid : jids) {
345 Element item = query.addChild("item");
346 item.setAttribute("jid", jid.toEscapedString());
347 item.setAttribute("affiliation", affiliation);
348 }
349 return packet;
350 }
351
352 public IqPacket changeRole(Conversation conference, String nick, String role) {
353 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
354 packet.setTo(conference.getJid().asBareJid());
355 packet.setFrom(conference.getAccount().getJid());
356 Element item = packet.query("http://jabber.org/protocol/muc#admin").addChild("item");
357 item.setAttribute("nick", nick);
358 item.setAttribute("role", role);
359 return packet;
360 }
361
362 public IqPacket requestHttpUploadSlot(Jid host, DownloadableFile file, String mime) {
363 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
364 packet.setTo(host);
365 Element request = packet.addChild("request", Namespace.HTTP_UPLOAD);
366 request.setAttribute("filename", convertFilename(file.getName()));
367 request.setAttribute("size", file.getExpectedSize());
368 request.setAttribute("content-type", mime);
369 return packet;
370 }
371
372 public IqPacket requestHttpUploadLegacySlot(Jid host, DownloadableFile file, String mime) {
373 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
374 packet.setTo(host);
375 Element request = packet.addChild("request", Namespace.HTTP_UPLOAD_LEGACY);
376 request.addChild("filename").setContent(convertFilename(file.getName()));
377 request.addChild("size").setContent(String.valueOf(file.getExpectedSize()));
378 request.addChild("content-type").setContent(mime);
379 return packet;
380 }
381
382 public IqPacket requestP1S3Slot(Jid host, String md5) {
383 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
384 packet.setTo(host);
385 packet.query(Namespace.P1_S3_FILE_TRANSFER).setAttribute("md5", md5);
386 return packet;
387 }
388
389 public IqPacket requestP1S3Url(Jid host, String fileId) {
390 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
391 packet.setTo(host);
392 packet.query(Namespace.P1_S3_FILE_TRANSFER).setAttribute("fileid", fileId);
393 return packet;
394 }
395
396 private static String convertFilename(String name) {
397 int pos = name.indexOf('.');
398 if (pos != -1) {
399 try {
400 UUID uuid = UUID.fromString(name.substring(0, pos));
401 ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
402 bb.putLong(uuid.getMostSignificantBits());
403 bb.putLong(uuid.getLeastSignificantBits());
404 return Base64.encodeToString(bb.array(), Base64.URL_SAFE | Base64.NO_PADDING | Base64.NO_WRAP) + name.substring(pos, name.length());
405 } catch (Exception e) {
406 return name;
407 }
408 } else {
409 return name;
410 }
411 }
412
413 public IqPacket generateCreateAccountWithCaptcha(Account account, String id, Data data) {
414 final IqPacket register = new IqPacket(IqPacket.TYPE.SET);
415 register.setFrom(account.getJid().asBareJid());
416 register.setTo(Jid.of(account.getServer()));
417 register.setId(id);
418 Element query = register.query(Namespace.REGISTER);
419 if (data != null) {
420 query.addChild(data);
421 }
422 return register;
423 }
424
425 public IqPacket pushTokenToAppServer(Jid appServer, String token, String deviceId) {
426 return pushTokenToAppServer(appServer, token, deviceId, null);
427 }
428
429 public IqPacket pushTokenToAppServer(Jid appServer, String token, String deviceId, Jid muc) {
430 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
431 packet.setTo(appServer);
432 final Element command = packet.addChild("command", Namespace.COMMANDS);
433 command.setAttribute("node", "register-push-fcm");
434 command.setAttribute("action", "execute");
435 final Data data = new Data();
436 data.put("token", token);
437 data.put("android-id", deviceId);
438 if (muc != null) {
439 data.put("muc", muc.toEscapedString());
440 }
441 data.submit();
442 command.addChild(data);
443 return packet;
444 }
445
446 public IqPacket unregisterChannelOnAppServer(Jid appServer, String deviceId, String channel) {
447 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
448 packet.setTo(appServer);
449 final Element command = packet.addChild("command", Namespace.COMMANDS);
450 command.setAttribute("node", "unregister-push-fcm");
451 command.setAttribute("action", "execute");
452 final Data data = new Data();
453 data.put("channel", channel);
454 data.put("android-id", deviceId);
455 data.submit();
456 command.addChild(data);
457 return packet;
458 }
459
460 public IqPacket enablePush(final Jid jid, final String node, final String secret) {
461 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
462 Element enable = packet.addChild("enable", Namespace.PUSH);
463 enable.setAttribute("jid", jid.toString());
464 enable.setAttribute("node", node);
465 if (secret != null) {
466 Data data = new Data();
467 data.setFormType(Namespace.PUBSUB_PUBLISH_OPTIONS);
468 data.put("secret", secret);
469 data.submit();
470 enable.addChild(data);
471 }
472 return packet;
473 }
474
475 public IqPacket disablePush(final Jid jid, final String node) {
476 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
477 Element disable = packet.addChild("disable", Namespace.PUSH);
478 disable.setAttribute("jid", jid.toEscapedString());
479 disable.setAttribute("node", node);
480 return packet;
481 }
482
483 public IqPacket queryAffiliation(Conversation conversation, String affiliation) {
484 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
485 packet.setTo(conversation.getJid().asBareJid());
486 packet.query("http://jabber.org/protocol/muc#admin").addChild("item").setAttribute("affiliation", affiliation);
487 return packet;
488 }
489
490 public static Bundle defaultGroupChatConfiguration() {
491 Bundle options = new Bundle();
492 options.putString("muc#roomconfig_persistentroom", "1");
493 options.putString("muc#roomconfig_membersonly", "1");
494 options.putString("muc#roomconfig_publicroom", "0");
495 options.putString("muc#roomconfig_whois", "anyone");
496 options.putString("muc#roomconfig_changesubject", "0");
497 options.putString("muc#roomconfig_allowinvites", "0");
498 options.putString("muc#roomconfig_enablearchiving", "1"); //prosody
499 options.putString("mam", "1"); //ejabberd community
500 options.putString("muc#roomconfig_mam","1"); //ejabberd saas
501 return options;
502 }
503
504 public static Bundle defaultChannelConfiguration() {
505 Bundle options = new Bundle();
506 options.putString("muc#roomconfig_persistentroom", "1");
507 options.putString("muc#roomconfig_membersonly", "0");
508 options.putString("muc#roomconfig_publicroom", "1");
509 options.putString("muc#roomconfig_whois", "moderators");
510 options.putString("muc#roomconfig_changesubject", "0");
511 options.putString("muc#roomconfig_enablearchiving", "1"); //prosody
512 options.putString("mam", "1"); //ejabberd community
513 options.putString("muc#roomconfig_mam","1"); //ejabberd saas
514 return options;
515 }
516
517 public IqPacket requestPubsubConfiguration(Jid jid, String node) {
518 return pubsubConfiguration(jid, node, null);
519 }
520
521 public IqPacket publishPubsubConfiguration(Jid jid, String node, Data data) {
522 return pubsubConfiguration(jid, node, data);
523 }
524
525 private IqPacket pubsubConfiguration(Jid jid, String node, Data data) {
526 IqPacket packet = new IqPacket(data == null ? IqPacket.TYPE.GET : IqPacket.TYPE.SET);
527 packet.setTo(jid);
528 Element pubsub = packet.addChild("pubsub", "http://jabber.org/protocol/pubsub#owner");
529 Element configure = pubsub.addChild("configure").setAttribute("node", node);
530 if (data != null) {
531 configure.addChild(data);
532 }
533 return packet;
534 }
535}