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.jid.Jid;
35import eu.siacs.conversations.xmpp.pep.Avatar;
36import eu.siacs.conversations.xmpp.stanzas.IqPacket;
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",
49 "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()) {
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 protected IqPacket publish(final String node, final Element item, final Bundle options) {
95 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
96 final Element pubsub = packet.addChild("pubsub",
97 "http://jabber.org/protocol/pubsub");
98 final Element publish = pubsub.addChild("publish");
99 publish.setAttribute("node", node);
100 publish.addChild(item);
101 if (options != null) {
102 final Element publishOptions = pubsub.addChild("publish-options");
103 publishOptions.addChild(Data.create(Namespace.PUBSUB_PUBLISH_OPTIONS, options));
104 }
105 return packet;
106 }
107
108 protected IqPacket publish(final String node, final Element item) {
109 return publish(node,item,null);
110 }
111
112 protected IqPacket retrieve(String node, Element item) {
113 final IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
114 final Element pubsub = packet.addChild("pubsub",
115 "http://jabber.org/protocol/pubsub");
116 final Element items = pubsub.addChild("items");
117 items.setAttribute("node", node);
118 if (item != null) {
119 items.addChild(item);
120 }
121 return packet;
122 }
123
124 public IqPacket publishNick(String nick) {
125 final Element item = new Element("item");
126 item.addChild("nick","http://jabber.org/protocol/nick").setContent(nick);
127 return publish("http://jabber.org/protocol/nick", item);
128 }
129
130 public IqPacket publishAvatar(Avatar avatar) {
131 final Element item = new Element("item");
132 item.setAttribute("id", avatar.sha1sum);
133 final Element data = item.addChild("data", "urn:xmpp:avatar:data");
134 data.setContent(avatar.image);
135 return publish("urn:xmpp:avatar:data", item);
136 }
137
138 public IqPacket publishAvatarMetadata(final Avatar avatar) {
139 final Element item = new Element("item");
140 item.setAttribute("id", avatar.sha1sum);
141 final Element metadata = item
142 .addChild("metadata", "urn:xmpp:avatar:metadata");
143 final Element info = metadata.addChild("info");
144 info.setAttribute("bytes", avatar.size);
145 info.setAttribute("id", avatar.sha1sum);
146 info.setAttribute("height", avatar.height);
147 info.setAttribute("width", avatar.height);
148 info.setAttribute("type", avatar.type);
149 return publish("urn:xmpp:avatar:metadata", item);
150 }
151
152 public IqPacket retrievePepAvatar(final Avatar avatar) {
153 final Element item = new Element("item");
154 item.setAttribute("id", avatar.sha1sum);
155 final IqPacket packet = retrieve("urn:xmpp:avatar:data", item);
156 packet.setTo(avatar.owner);
157 return packet;
158 }
159
160 public IqPacket retrieveVcardAvatar(final Avatar avatar) {
161 final IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
162 packet.setTo(avatar.owner);
163 packet.addChild("vCard", "vcard-temp");
164 return packet;
165 }
166
167 public IqPacket retrieveAvatarMetaData(final Jid to) {
168 final IqPacket packet = retrieve("urn:xmpp:avatar:metadata", null);
169 if (to != null) {
170 packet.setTo(to);
171 }
172 return packet;
173 }
174
175 public IqPacket retrieveDeviceIds(final Jid to) {
176 final IqPacket packet = retrieve(AxolotlService.PEP_DEVICE_LIST, null);
177 if(to != null) {
178 packet.setTo(to);
179 }
180 return packet;
181 }
182
183 public IqPacket retrieveBundlesForDevice(final Jid to, final int deviceid) {
184 final IqPacket packet = retrieve(AxolotlService.PEP_BUNDLES+":"+deviceid, null);
185 packet.setTo(to);
186 return packet;
187 }
188
189 public IqPacket retrieveVerificationForDevice(final Jid to, final int deviceid) {
190 final IqPacket packet = retrieve(AxolotlService.PEP_VERIFICATION+":"+deviceid, null);
191 packet.setTo(to);
192 return packet;
193 }
194
195 public IqPacket publishDeviceIds(final Set<Integer> ids, final Bundle publishOptions) {
196 final Element item = new Element("item");
197 final Element list = item.addChild("list", AxolotlService.PEP_PREFIX);
198 for(Integer id:ids) {
199 final Element device = new Element("device");
200 device.setAttribute("id", id);
201 list.addChild(device);
202 }
203 return publish(AxolotlService.PEP_DEVICE_LIST, item, publishOptions);
204 }
205
206 public IqPacket publishBundles(final SignedPreKeyRecord signedPreKeyRecord, final IdentityKey identityKey,
207 final Set<PreKeyRecord> preKeyRecords, final int deviceId, Bundle publishOptions) {
208 final Element item = new Element("item");
209 final Element bundle = item.addChild("bundle", AxolotlService.PEP_PREFIX);
210 final Element signedPreKeyPublic = bundle.addChild("signedPreKeyPublic");
211 signedPreKeyPublic.setAttribute("signedPreKeyId", signedPreKeyRecord.getId());
212 ECPublicKey publicKey = signedPreKeyRecord.getKeyPair().getPublicKey();
213 signedPreKeyPublic.setContent(Base64.encodeToString(publicKey.serialize(),Base64.DEFAULT));
214 final Element signedPreKeySignature = bundle.addChild("signedPreKeySignature");
215 signedPreKeySignature.setContent(Base64.encodeToString(signedPreKeyRecord.getSignature(),Base64.DEFAULT));
216 final Element identityKeyElement = bundle.addChild("identityKey");
217 identityKeyElement.setContent(Base64.encodeToString(identityKey.serialize(), Base64.DEFAULT));
218
219 final Element prekeys = bundle.addChild("prekeys", AxolotlService.PEP_PREFIX);
220 for(PreKeyRecord preKeyRecord:preKeyRecords) {
221 final Element prekey = prekeys.addChild("preKeyPublic");
222 prekey.setAttribute("preKeyId", preKeyRecord.getId());
223 prekey.setContent(Base64.encodeToString(preKeyRecord.getKeyPair().getPublicKey().serialize(), Base64.DEFAULT));
224 }
225
226 return publish(AxolotlService.PEP_BUNDLES+":"+deviceId, item, publishOptions);
227 }
228
229 public IqPacket publishVerification(byte[] signature, X509Certificate[] certificates, final int deviceId) {
230 final Element item = new Element("item");
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(Base64.encodeToString(certificates[i].getEncoded(), Base64.DEFAULT));
237 certificate.setAttribute("index",i);
238 } catch (CertificateEncodingException e) {
239 Log.d(Config.LOGTAG, "could not encode certificate");
240 }
241 }
242 verification.addChild("signature").setContent(Base64.encodeToString(signature, Base64.DEFAULT));
243 return publish(AxolotlService.PEP_VERIFICATION+":"+deviceId, item);
244 }
245
246 public IqPacket queryMessageArchiveManagement(final MessageArchiveService.Query mam) {
247 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
248 final Element query = packet.query(mam.isLegacy() ? Namespace.MAM_LEGACY : Namespace.MAM);
249 query.setAttribute("queryid", mam.getQueryId());
250 final Data data = new Data();
251 data.setFormType(mam.isLegacy() ? Namespace.MAM_LEGACY : Namespace.MAM);
252 if (mam.muc()) {
253 packet.setTo(mam.getWith());
254 } else if (mam.getWith()!=null) {
255 data.put("with", mam.getWith().toString());
256 }
257 if (mam.getStart() != 0) {
258 data.put("start", getTimestamp(mam.getStart()));
259 }
260 data.put("end", getTimestamp(mam.getEnd()));
261 data.submit();
262 query.addChild(data);
263 Element set = query.addChild("set", "http://jabber.org/protocol/rsm");
264 if (mam.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
265 set.addChild("before").setContent(mam.getReference());
266 } else if (mam.getReference() != null) {
267 set.addChild("after").setContent(mam.getReference());
268 }
269 set.addChild("max").setContent(String.valueOf(Config.PAGE_SIZE));
270 return packet;
271 }
272 public IqPacket generateGetBlockList() {
273 final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
274 iq.addChild("blocklist", Namespace.BLOCKING);
275
276 return iq;
277 }
278
279 public IqPacket generateSetBlockRequest(final Jid jid, boolean reportSpam) {
280 final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
281 final Element block = iq.addChild("block", Namespace.BLOCKING);
282 final Element item = block.addChild("item").setAttribute("jid", jid.toBareJid().toString());
283 if (reportSpam) {
284 item.addChild("report", "urn:xmpp:reporting:0").addChild("spam");
285 }
286 Log.d(Config.LOGTAG,iq.toString());
287 return iq;
288 }
289
290 public IqPacket generateSetUnblockRequest(final Jid jid) {
291 final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
292 final Element block = iq.addChild("unblock", Namespace.BLOCKING);
293 block.addChild("item").setAttribute("jid", jid.toBareJid().toString());
294 return iq;
295 }
296
297 public IqPacket generateSetPassword(final Account account, final String newPassword) {
298 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
299 packet.setTo(account.getServer());
300 final Element query = packet.addChild("query", Namespace.REGISTER);
301 final Jid jid = account.getJid();
302 query.addChild("username").setContent(jid.getLocalpart());
303 query.addChild("password").setContent(newPassword);
304 return packet;
305 }
306
307 public IqPacket changeAffiliation(Conversation conference, Jid jid, String affiliation) {
308 List<Jid> jids = new ArrayList<>();
309 jids.add(jid);
310 return changeAffiliation(conference,jids,affiliation);
311 }
312
313 public IqPacket changeAffiliation(Conversation conference, List<Jid> jids, String affiliation) {
314 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
315 packet.setTo(conference.getJid().toBareJid());
316 packet.setFrom(conference.getAccount().getJid());
317 Element query = packet.query("http://jabber.org/protocol/muc#admin");
318 for(Jid jid : jids) {
319 Element item = query.addChild("item");
320 item.setAttribute("jid", jid.toString());
321 item.setAttribute("affiliation", affiliation);
322 }
323 return packet;
324 }
325
326 public IqPacket changeRole(Conversation conference, String nick, String role) {
327 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
328 packet.setTo(conference.getJid().toBareJid());
329 packet.setFrom(conference.getAccount().getJid());
330 Element item = packet.query("http://jabber.org/protocol/muc#admin").addChild("item");
331 item.setAttribute("nick", nick);
332 item.setAttribute("role", role);
333 return packet;
334 }
335
336 public IqPacket requestHttpUploadSlot(Jid host, DownloadableFile file, String mime) {
337 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
338 packet.setTo(host);
339 Element request = packet.addChild("request", Namespace.HTTP_UPLOAD);
340 request.addChild("filename").setContent(convertFilename(file.getName()));
341 request.addChild("size").setContent(String.valueOf(file.getExpectedSize()));
342 if (mime != null) {
343 request.addChild("content-type").setContent(mime);
344 }
345 return packet;
346 }
347
348 private static String convertFilename(String name) {
349 int pos = name.indexOf('.');
350 if (pos != -1) {
351 try {
352 UUID uuid = UUID.fromString(name.substring(0, pos));
353 ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
354 bb.putLong(uuid.getMostSignificantBits());
355 bb.putLong(uuid.getLeastSignificantBits());
356 return Base64.encodeToString(bb.array(), Base64.URL_SAFE | Base64.NO_PADDING | Base64.NO_WRAP) + name.substring(pos, name.length());
357 } catch (Exception e) {
358 return name;
359 }
360 } else {
361 return name;
362 }
363 }
364
365 public IqPacket generateCreateAccountWithCaptcha(Account account, String id, Data data) {
366 final IqPacket register = new IqPacket(IqPacket.TYPE.SET);
367 register.setFrom(account.getJid().toBareJid());
368 register.setTo(account.getServer());
369 register.setId(id);
370 Element query = register.query("jabber:iq:register");
371 if (data != null) {
372 query.addChild(data);
373 }
374 return register;
375 }
376
377 public IqPacket pushTokenToAppServer(Jid appServer, String token, String deviceId) {
378 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
379 packet.setTo(appServer);
380 Element command = packet.addChild("command", "http://jabber.org/protocol/commands");
381 command.setAttribute("node","register-push-gcm");
382 command.setAttribute("action","execute");
383 Data data = new Data();
384 data.put("token", token);
385 data.put("device-id", deviceId);
386 data.submit();
387 command.addChild(data);
388 return packet;
389 }
390
391 public IqPacket enablePush(Jid jid, String node, String secret) {
392 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
393 Element enable = packet.addChild("enable","urn:xmpp:push:0");
394 enable.setAttribute("jid",jid.toString());
395 enable.setAttribute("node", node);
396 Data data = new Data();
397 data.setFormType("http://jabber.org/protocol/pubsub#publish-options");
398 data.put("secret",secret);
399 data.submit();
400 enable.addChild(data);
401 return packet;
402 }
403
404 public IqPacket queryAffiliation(Conversation conversation, String affiliation) {
405 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
406 packet.setTo(conversation.getJid().toBareJid());
407 packet.query("http://jabber.org/protocol/muc#admin").addChild("item").setAttribute("affiliation",affiliation);
408 return packet;
409 }
410
411 public static Bundle defaultRoomConfiguration() {
412 Bundle options = new Bundle();
413 options.putString("muc#roomconfig_persistentroom", "1");
414 options.putString("muc#roomconfig_membersonly", "1");
415 options.putString("muc#roomconfig_publicroom", "0");
416 options.putString("muc#roomconfig_whois", "anyone");
417 options.putString("mam","1");
418 return options;
419 }
420
421 public IqPacket requestPubsubConfiguration(Jid jid, String node) {
422 return pubsubConfiguration(jid, node, null);
423 }
424
425 public IqPacket publishPubsubConfiguration(Jid jid, String node, Data data) {
426 return pubsubConfiguration(jid,node,data);
427 }
428
429 private IqPacket pubsubConfiguration(Jid jid, String node, Data data) {
430 IqPacket packet = new IqPacket(data == null ? IqPacket.TYPE.GET : IqPacket.TYPE.SET);
431 packet.setTo(jid);
432 Element pubsub = packet.addChild("pubsub","http://jabber.org/protocol/pubsub#owner");
433 Element configure = pubsub.addChild("configure").setAttribute("node",node);
434 if (data != null) {
435 configure.addChild(data);
436 }
437 return packet;
438 }
439}