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.Conversation;
28import eu.siacs.conversations.entities.DownloadableFile;
29import eu.siacs.conversations.services.MessageArchiveService;
30import eu.siacs.conversations.services.XmppConnectionService;
31import eu.siacs.conversations.xml.Namespace;
32import eu.siacs.conversations.xml.Element;
33import eu.siacs.conversations.xmpp.forms.Data;
34import eu.siacs.conversations.xmpp.pep.Avatar;
35import eu.siacs.conversations.xmpp.stanzas.IqPacket;
36import rocks.xmpp.addr.Jid;
37
38public class IqGenerator extends AbstractGenerator {
39
40 public IqGenerator(final XmppConnectionService service) {
41 super(service);
42 }
43
44 public IqPacket discoResponse(final IqPacket request) {
45 final IqPacket packet = new IqPacket(IqPacket.TYPE.RESULT);
46 packet.setId(request.getId());
47 packet.setTo(request.getFrom());
48 final Element query = packet.addChild("query", "http://jabber.org/protocol/disco#info");
49 query.setAttribute("node", request.query().getAttribute("node"));
50 final Element identity = query.addChild("identity");
51 identity.setAttribute("category", "client");
52 identity.setAttribute("type", getIdentityType());
53 identity.setAttribute("name", getIdentityName());
54 for (final String feature : getFeatures()) {
55 query.addChild("feature").setAttribute("var", feature);
56 }
57 return packet;
58 }
59
60 public IqPacket versionResponse(final IqPacket request) {
61 final IqPacket packet = request.generateResponse(IqPacket.TYPE.RESULT);
62 Element query = packet.query("jabber:iq:version");
63 query.addChild("name").setContent(mXmppConnectionService.getString(R.string.app_name));
64 query.addChild("version").setContent(getIdentityVersion());
65 if ("chromium".equals(android.os.Build.BRAND)) {
66 query.addChild("os").setContent("Chrome OS");
67 } else{
68 query.addChild("os").setContent("Android");
69 }
70 return packet;
71 }
72
73 public IqPacket entityTimeResponse(IqPacket request) {
74 final IqPacket packet = request.generateResponse(IqPacket.TYPE.RESULT);
75 Element time = packet.addChild("time","urn:xmpp:time");
76 final long now = System.currentTimeMillis();
77 time.addChild("utc").setContent(getTimestamp(now));
78 TimeZone ourTimezone = TimeZone.getDefault();
79 long offsetSeconds = ourTimezone.getOffset(now) / 1000;
80 long offsetMinutes = Math.abs((offsetSeconds % 3600) / 60);
81 long offsetHours = offsetSeconds / 3600;
82 String hours;
83 if (offsetHours<0) {
84 hours = String.format(Locale.US,"%03d",offsetHours);
85 } else {
86 hours = String.format(Locale.US,"%02d",offsetHours);
87 }
88 String minutes = String.format(Locale.US,"%02d",offsetMinutes);
89 time.addChild("tzo").setContent(hours+":"+minutes);
90 return packet;
91 }
92
93 public IqPacket purgeOfflineMessages() {
94 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
95 packet.addChild("offline",Namespace.FLEXIBLE_OFFLINE_MESSAGE_RETRIEVAL).addChild("purge");
96 return packet;
97 }
98
99 protected IqPacket publish(final String node, final Element item, final Bundle options) {
100 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
101 final Element pubsub = packet.addChild("pubsub",
102 "http://jabber.org/protocol/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 protected IqPacket retrieve(String node, Element item) {
118 final IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
119 final Element pubsub = packet.addChild("pubsub",
120 "http://jabber.org/protocol/pubsub");
121 final Element items = pubsub.addChild("items");
122 items.setAttribute("node", node);
123 if (item != null) {
124 items.addChild(item);
125 }
126 return packet;
127 }
128
129 public IqPacket publishNick(String nick) {
130 final Element item = new Element("item");
131 item.addChild("nick","http://jabber.org/protocol/nick").setContent(nick);
132 return publish("http://jabber.org/protocol/nick", item);
133 }
134
135 public IqPacket publishAvatar(Avatar avatar) {
136 final Element item = new Element("item");
137 item.setAttribute("id", avatar.sha1sum);
138 final Element data = item.addChild("data", "urn:xmpp:avatar:data");
139 data.setContent(avatar.image);
140 return publish("urn:xmpp:avatar:data", item);
141 }
142
143 public IqPacket publishAvatarMetadata(final Avatar avatar) {
144 final Element item = new Element("item");
145 item.setAttribute("id", avatar.sha1sum);
146 final Element metadata = item
147 .addChild("metadata", "urn:xmpp:avatar:metadata");
148 final Element info = metadata.addChild("info");
149 info.setAttribute("bytes", avatar.size);
150 info.setAttribute("id", avatar.sha1sum);
151 info.setAttribute("height", avatar.height);
152 info.setAttribute("width", avatar.height);
153 info.setAttribute("type", avatar.type);
154 return publish("urn:xmpp:avatar:metadata", item);
155 }
156
157 public IqPacket retrievePepAvatar(final Avatar avatar) {
158 final Element item = new Element("item");
159 item.setAttribute("id", avatar.sha1sum);
160 final IqPacket packet = retrieve("urn:xmpp:avatar:data", item);
161 packet.setTo(avatar.owner);
162 return packet;
163 }
164
165 public IqPacket retrieveVcardAvatar(final Avatar avatar) {
166 final IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
167 packet.setTo(avatar.owner);
168 packet.addChild("vCard", "vcard-temp");
169 return packet;
170 }
171
172 public IqPacket retrieveAvatarMetaData(final Jid to) {
173 final IqPacket packet = retrieve("urn:xmpp:avatar:metadata", null);
174 if (to != null) {
175 packet.setTo(to);
176 }
177 return packet;
178 }
179
180 public IqPacket retrieveDeviceIds(final Jid to) {
181 final IqPacket packet = retrieve(AxolotlService.PEP_DEVICE_LIST, null);
182 if(to != null) {
183 packet.setTo(to);
184 }
185 return packet;
186 }
187
188 public IqPacket retrieveBundlesForDevice(final Jid to, final int deviceid) {
189 final IqPacket packet = retrieve(AxolotlService.PEP_BUNDLES+":"+deviceid, null);
190 packet.setTo(to);
191 return packet;
192 }
193
194 public IqPacket retrieveVerificationForDevice(final Jid to, final int deviceid) {
195 final IqPacket packet = retrieve(AxolotlService.PEP_VERIFICATION+":"+deviceid, null);
196 packet.setTo(to);
197 return packet;
198 }
199
200 public IqPacket publishDeviceIds(final Set<Integer> ids, final Bundle publishOptions) {
201 final Element item = new Element("item");
202 final Element list = item.addChild("list", AxolotlService.PEP_PREFIX);
203 for(Integer id:ids) {
204 final Element device = new Element("device");
205 device.setAttribute("id", id);
206 list.addChild(device);
207 }
208 return publish(AxolotlService.PEP_DEVICE_LIST, item, publishOptions);
209 }
210
211 public IqPacket publishBundles(final SignedPreKeyRecord signedPreKeyRecord, final IdentityKey identityKey,
212 final Set<PreKeyRecord> preKeyRecords, final int deviceId, Bundle publishOptions) {
213 final Element item = new Element("item");
214 final Element bundle = item.addChild("bundle", AxolotlService.PEP_PREFIX);
215 final Element signedPreKeyPublic = bundle.addChild("signedPreKeyPublic");
216 signedPreKeyPublic.setAttribute("signedPreKeyId", signedPreKeyRecord.getId());
217 ECPublicKey publicKey = signedPreKeyRecord.getKeyPair().getPublicKey();
218 signedPreKeyPublic.setContent(Base64.encodeToString(publicKey.serialize(),Base64.DEFAULT));
219 final Element signedPreKeySignature = bundle.addChild("signedPreKeySignature");
220 signedPreKeySignature.setContent(Base64.encodeToString(signedPreKeyRecord.getSignature(),Base64.DEFAULT));
221 final Element identityKeyElement = bundle.addChild("identityKey");
222 identityKeyElement.setContent(Base64.encodeToString(identityKey.serialize(), Base64.DEFAULT));
223
224 final Element prekeys = bundle.addChild("prekeys", AxolotlService.PEP_PREFIX);
225 for(PreKeyRecord preKeyRecord:preKeyRecords) {
226 final Element prekey = prekeys.addChild("preKeyPublic");
227 prekey.setAttribute("preKeyId", preKeyRecord.getId());
228 prekey.setContent(Base64.encodeToString(preKeyRecord.getKeyPair().getPublicKey().serialize(), Base64.DEFAULT));
229 }
230
231 return publish(AxolotlService.PEP_BUNDLES+":"+deviceId, item, publishOptions);
232 }
233
234 public IqPacket publishVerification(byte[] signature, X509Certificate[] certificates, final int deviceId) {
235 final Element item = new Element("item");
236 final Element verification = item.addChild("verification", AxolotlService.PEP_PREFIX);
237 final Element chain = verification.addChild("chain");
238 for(int i = 0; i < certificates.length; ++i) {
239 try {
240 Element certificate = chain.addChild("certificate");
241 certificate.setContent(Base64.encodeToString(certificates[i].getEncoded(), Base64.DEFAULT));
242 certificate.setAttribute("index",i);
243 } catch (CertificateEncodingException e) {
244 Log.d(Config.LOGTAG, "could not encode certificate");
245 }
246 }
247 verification.addChild("signature").setContent(Base64.encodeToString(signature, Base64.DEFAULT));
248 return publish(AxolotlService.PEP_VERIFICATION+":"+deviceId, item);
249 }
250
251 public IqPacket queryMessageArchiveManagement(final MessageArchiveService.Query mam) {
252 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
253 final Element query = packet.query(mam.isLegacy() ? Namespace.MAM_LEGACY : Namespace.MAM);
254 query.setAttribute("queryid", mam.getQueryId());
255 final Data data = new Data();
256 data.setFormType(mam.isLegacy() ? Namespace.MAM_LEGACY : Namespace.MAM);
257 if (mam.muc()) {
258 packet.setTo(mam.getWith());
259 } else if (mam.getWith()!=null) {
260 data.put("with", mam.getWith().toString());
261 }
262 if (mam.getStart() != 0) {
263 data.put("start", getTimestamp(mam.getStart()));
264 }
265 data.put("end", getTimestamp(mam.getEnd()));
266 data.submit();
267 query.addChild(data);
268 Element set = query.addChild("set", "http://jabber.org/protocol/rsm");
269 if (mam.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
270 set.addChild("before").setContent(mam.getReference());
271 } else if (mam.getReference() != null) {
272 set.addChild("after").setContent(mam.getReference());
273 }
274 set.addChild("max").setContent(String.valueOf(Config.PAGE_SIZE));
275 return packet;
276 }
277 public IqPacket generateGetBlockList() {
278 final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
279 iq.addChild("blocklist", Namespace.BLOCKING);
280
281 return iq;
282 }
283
284 public IqPacket generateSetBlockRequest(final Jid jid, boolean reportSpam) {
285 final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
286 final Element block = iq.addChild("block", Namespace.BLOCKING);
287 final Element item = block.addChild("item").setAttribute("jid", jid.asBareJid().toString());
288 if (reportSpam) {
289 item.addChild("report", "urn:xmpp:reporting:0").addChild("spam");
290 }
291 Log.d(Config.LOGTAG,iq.toString());
292 return iq;
293 }
294
295 public IqPacket generateSetUnblockRequest(final Jid jid) {
296 final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
297 final Element block = iq.addChild("unblock", Namespace.BLOCKING);
298 block.addChild("item").setAttribute("jid", jid.asBareJid().toString());
299 return iq;
300 }
301
302 public IqPacket generateSetPassword(final Account account, final String newPassword) {
303 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
304 packet.setTo(Jid.of(account.getServer()));
305 final Element query = packet.addChild("query", Namespace.REGISTER);
306 final Jid jid = account.getJid();
307 query.addChild("username").setContent(jid.getLocal());
308 query.addChild("password").setContent(newPassword);
309 return packet;
310 }
311
312 public IqPacket changeAffiliation(Conversation conference, Jid jid, String affiliation) {
313 List<Jid> jids = new ArrayList<>();
314 jids.add(jid);
315 return changeAffiliation(conference,jids,affiliation);
316 }
317
318 public IqPacket changeAffiliation(Conversation conference, List<Jid> jids, String affiliation) {
319 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
320 packet.setTo(conference.getJid().asBareJid());
321 packet.setFrom(conference.getAccount().getJid());
322 Element query = packet.query("http://jabber.org/protocol/muc#admin");
323 for(Jid jid : jids) {
324 Element item = query.addChild("item");
325 item.setAttribute("jid", jid.toString());
326 item.setAttribute("affiliation", affiliation);
327 }
328 return packet;
329 }
330
331 public IqPacket changeRole(Conversation conference, String nick, String role) {
332 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
333 packet.setTo(conference.getJid().asBareJid());
334 packet.setFrom(conference.getAccount().getJid());
335 Element item = packet.query("http://jabber.org/protocol/muc#admin").addChild("item");
336 item.setAttribute("nick", nick);
337 item.setAttribute("role", role);
338 return packet;
339 }
340
341 public IqPacket requestHttpUploadSlot(Jid host, DownloadableFile file, String mime) {
342 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
343 packet.setTo(host);
344 Element request = packet.addChild("request", Namespace.HTTP_UPLOAD);
345 request.setAttribute("filename",convertFilename(file.getName()));
346 request.setAttribute("size",file.getExpectedSize());
347 request.setAttribute("content-type",mime);
348 return packet;
349 }
350
351 private static String convertFilename(String name) {
352 int pos = name.indexOf('.');
353 if (pos != -1) {
354 try {
355 UUID uuid = UUID.fromString(name.substring(0, pos));
356 ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
357 bb.putLong(uuid.getMostSignificantBits());
358 bb.putLong(uuid.getLeastSignificantBits());
359 return Base64.encodeToString(bb.array(), Base64.URL_SAFE | Base64.NO_PADDING | Base64.NO_WRAP) + name.substring(pos, name.length());
360 } catch (Exception e) {
361 return name;
362 }
363 } else {
364 return name;
365 }
366 }
367
368 public IqPacket generateCreateAccountWithCaptcha(Account account, String id, Data data) {
369 final IqPacket register = new IqPacket(IqPacket.TYPE.SET);
370 register.setFrom(account.getJid().asBareJid());
371 register.setTo(Jid.of(account.getServer()));
372 register.setId(id);
373 Element query = register.query("jabber:iq:register");
374 if (data != null) {
375 query.addChild(data);
376 }
377 return register;
378 }
379
380 public IqPacket pushTokenToAppServer(Jid appServer, String token, String deviceId) {
381 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
382 packet.setTo(appServer);
383 Element command = packet.addChild("command", "http://jabber.org/protocol/commands");
384 command.setAttribute("node","register-push-gcm");
385 command.setAttribute("action","execute");
386 Data data = new Data();
387 data.put("token", token);
388 data.put("device-id", deviceId);
389 data.submit();
390 command.addChild(data);
391 return packet;
392 }
393
394 public IqPacket enablePush(Jid jid, String node, String secret) {
395 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
396 Element enable = packet.addChild("enable","urn:xmpp:push:0");
397 enable.setAttribute("jid",jid.toString());
398 enable.setAttribute("node", node);
399 Data data = new Data();
400 data.setFormType("http://jabber.org/protocol/pubsub#publish-options");
401 data.put("secret",secret);
402 data.submit();
403 enable.addChild(data);
404 return packet;
405 }
406
407 public IqPacket queryAffiliation(Conversation conversation, String affiliation) {
408 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
409 packet.setTo(conversation.getJid().asBareJid());
410 packet.query("http://jabber.org/protocol/muc#admin").addChild("item").setAttribute("affiliation",affiliation);
411 return packet;
412 }
413
414 public static Bundle defaultRoomConfiguration() {
415 Bundle options = new Bundle();
416 options.putString("muc#roomconfig_persistentroom", "1");
417 options.putString("muc#roomconfig_membersonly", "1");
418 options.putString("muc#roomconfig_publicroom", "0");
419 options.putString("muc#roomconfig_whois", "anyone");
420 options.putString("mam","1");
421 return options;
422 }
423
424 public IqPacket requestPubsubConfiguration(Jid jid, String node) {
425 return pubsubConfiguration(jid, node, null);
426 }
427
428 public IqPacket publishPubsubConfiguration(Jid jid, String node, Data data) {
429 return pubsubConfiguration(jid,node,data);
430 }
431
432 private IqPacket pubsubConfiguration(Jid jid, String node, Data data) {
433 IqPacket packet = new IqPacket(data == null ? IqPacket.TYPE.GET : IqPacket.TYPE.SET);
434 packet.setTo(jid);
435 Element pubsub = packet.addChild("pubsub","http://jabber.org/protocol/pubsub#owner");
436 Element configure = pubsub.addChild("configure").setAttribute("node",node);
437 if (data != null) {
438 configure.addChild(data);
439 }
440 return packet;
441 }
442}