1package eu.siacs.conversations.generator;
2
3
4import android.os.Bundle;
5import android.util.Base64;
6import android.util.Log;
7
8import org.whispersystems.libaxolotl.IdentityKey;
9import org.whispersystems.libaxolotl.ecc.ECPublicKey;
10import org.whispersystems.libaxolotl.state.PreKeyRecord;
11import org.whispersystems.libaxolotl.state.SignedPreKeyRecord;
12
13import java.math.BigInteger;
14import java.nio.ByteBuffer;
15import java.security.cert.CertificateEncodingException;
16import java.security.cert.X509Certificate;
17import java.util.ArrayList;
18import java.util.List;
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.utils.Xmlns;
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 = offsetSeconds % (60 * 60);
82 long offsetHours = offsetSeconds / (60 * 60);
83 time.addChild("tzo").setContent(String.format("%02d",offsetHours)+":"+String.format("%02d",offsetMinutes));
84 return packet;
85 }
86
87 protected IqPacket publish(final String node, final Element item) {
88 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
89 final Element pubsub = packet.addChild("pubsub",
90 "http://jabber.org/protocol/pubsub");
91 final Element publish = pubsub.addChild("publish");
92 publish.setAttribute("node", node);
93 publish.addChild(item);
94 return packet;
95 }
96
97 protected IqPacket retrieve(String node, Element item) {
98 final IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
99 final Element pubsub = packet.addChild("pubsub",
100 "http://jabber.org/protocol/pubsub");
101 final Element items = pubsub.addChild("items");
102 items.setAttribute("node", node);
103 if (item != null) {
104 items.addChild(item);
105 }
106 return packet;
107 }
108
109 public IqPacket publishNick(String nick) {
110 final Element item = new Element("item");
111 item.addChild("nick","http://jabber.org/protocol/nick").setContent(nick);
112 return publish("http://jabber.org/protocol/nick", item);
113 }
114
115 public IqPacket publishAvatar(Avatar avatar) {
116 final Element item = new Element("item");
117 item.setAttribute("id", avatar.sha1sum);
118 final Element data = item.addChild("data", "urn:xmpp:avatar:data");
119 data.setContent(avatar.image);
120 return publish("urn:xmpp:avatar:data", item);
121 }
122
123 public IqPacket publishAvatarMetadata(final Avatar avatar) {
124 final Element item = new Element("item");
125 item.setAttribute("id", avatar.sha1sum);
126 final Element metadata = item
127 .addChild("metadata", "urn:xmpp:avatar:metadata");
128 final Element info = metadata.addChild("info");
129 info.setAttribute("bytes", avatar.size);
130 info.setAttribute("id", avatar.sha1sum);
131 info.setAttribute("height", avatar.height);
132 info.setAttribute("width", avatar.height);
133 info.setAttribute("type", avatar.type);
134 return publish("urn:xmpp:avatar:metadata", item);
135 }
136
137 public IqPacket retrievePepAvatar(final Avatar avatar) {
138 final Element item = new Element("item");
139 item.setAttribute("id", avatar.sha1sum);
140 final IqPacket packet = retrieve("urn:xmpp:avatar:data", item);
141 packet.setTo(avatar.owner);
142 return packet;
143 }
144
145 public IqPacket retrieveVcardAvatar(final Avatar avatar) {
146 final IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
147 packet.setTo(avatar.owner);
148 packet.addChild("vCard", "vcard-temp");
149 return packet;
150 }
151
152 public IqPacket retrieveAvatarMetaData(final Jid to) {
153 final IqPacket packet = retrieve("urn:xmpp:avatar:metadata", null);
154 if (to != null) {
155 packet.setTo(to);
156 }
157 return packet;
158 }
159
160 public IqPacket retrieveDeviceIds(final Jid to) {
161 final IqPacket packet = retrieve(AxolotlService.PEP_DEVICE_LIST, null);
162 if(to != null) {
163 packet.setTo(to);
164 }
165 return packet;
166 }
167
168 public IqPacket retrieveBundlesForDevice(final Jid to, final int deviceid) {
169 final IqPacket packet = retrieve(AxolotlService.PEP_BUNDLES+":"+deviceid, null);
170 packet.setTo(to);
171 return packet;
172 }
173
174 public IqPacket retrieveVerificationForDevice(final Jid to, final int deviceid) {
175 final IqPacket packet = retrieve(AxolotlService.PEP_VERIFICATION+":"+deviceid, null);
176 packet.setTo(to);
177 return packet;
178 }
179
180 public IqPacket publishDeviceIds(final Set<Integer> ids) {
181 final Element item = new Element("item");
182 final Element list = item.addChild("list", AxolotlService.PEP_PREFIX);
183 for(Integer id:ids) {
184 final Element device = new Element("device");
185 device.setAttribute("id", id);
186 list.addChild(device);
187 }
188 return publish(AxolotlService.PEP_DEVICE_LIST, item);
189 }
190
191 public IqPacket publishBundles(final SignedPreKeyRecord signedPreKeyRecord, final IdentityKey identityKey,
192 final Set<PreKeyRecord> preKeyRecords, final int deviceId) {
193 final Element item = new Element("item");
194 final Element bundle = item.addChild("bundle", AxolotlService.PEP_PREFIX);
195 final Element signedPreKeyPublic = bundle.addChild("signedPreKeyPublic");
196 signedPreKeyPublic.setAttribute("signedPreKeyId", signedPreKeyRecord.getId());
197 ECPublicKey publicKey = signedPreKeyRecord.getKeyPair().getPublicKey();
198 signedPreKeyPublic.setContent(Base64.encodeToString(publicKey.serialize(),Base64.DEFAULT));
199 final Element signedPreKeySignature = bundle.addChild("signedPreKeySignature");
200 signedPreKeySignature.setContent(Base64.encodeToString(signedPreKeyRecord.getSignature(),Base64.DEFAULT));
201 final Element identityKeyElement = bundle.addChild("identityKey");
202 identityKeyElement.setContent(Base64.encodeToString(identityKey.serialize(), Base64.DEFAULT));
203
204 final Element prekeys = bundle.addChild("prekeys", AxolotlService.PEP_PREFIX);
205 for(PreKeyRecord preKeyRecord:preKeyRecords) {
206 final Element prekey = prekeys.addChild("preKeyPublic");
207 prekey.setAttribute("preKeyId", preKeyRecord.getId());
208 prekey.setContent(Base64.encodeToString(preKeyRecord.getKeyPair().getPublicKey().serialize(), Base64.DEFAULT));
209 }
210
211 return publish(AxolotlService.PEP_BUNDLES+":"+deviceId, item);
212 }
213
214 public IqPacket publishVerification(byte[] signature, X509Certificate[] certificates, final int deviceId) {
215 final Element item = new Element("item");
216 final Element verification = item.addChild("verification", AxolotlService.PEP_PREFIX);
217 final Element chain = verification.addChild("chain");
218 for(int i = 0; i < certificates.length; ++i) {
219 try {
220 Element certificate = chain.addChild("certificate");
221 certificate.setContent(Base64.encodeToString(certificates[i].getEncoded(), Base64.DEFAULT));
222 certificate.setAttribute("index",i);
223 } catch (CertificateEncodingException e) {
224 Log.d(Config.LOGTAG, "could not encode certificate");
225 }
226 }
227 verification.addChild("signature").setContent(Base64.encodeToString(signature, Base64.DEFAULT));
228 return publish(AxolotlService.PEP_VERIFICATION+":"+deviceId, item);
229 }
230
231 public IqPacket queryMessageArchiveManagement(final MessageArchiveService.Query mam) {
232 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
233 final Element query = packet.query("urn:xmpp:mam:0");
234 query.setAttribute("queryid", mam.getQueryId());
235 final Data data = new Data();
236 data.setFormType("urn:xmpp:mam:0");
237 if (mam.muc()) {
238 packet.setTo(mam.getWith());
239 } else if (mam.getWith()!=null) {
240 data.put("with", mam.getWith().toString());
241 }
242 data.put("start", getTimestamp(mam.getStart()));
243 data.put("end", getTimestamp(mam.getEnd()));
244 data.submit();
245 query.addChild(data);
246 if (mam.getPagingOrder() == MessageArchiveService.PagingOrder.REVERSE) {
247 query.addChild("set", "http://jabber.org/protocol/rsm").addChild("before").setContent(mam.getReference());
248 } else if (mam.getReference() != null) {
249 query.addChild("set", "http://jabber.org/protocol/rsm").addChild("after").setContent(mam.getReference());
250 }
251 return packet;
252 }
253 public IqPacket generateGetBlockList() {
254 final IqPacket iq = new IqPacket(IqPacket.TYPE.GET);
255 iq.addChild("blocklist", Xmlns.BLOCKING);
256
257 return iq;
258 }
259
260 public IqPacket generateSetBlockRequest(final Jid jid, boolean reportSpam) {
261 final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
262 final Element block = iq.addChild("block", Xmlns.BLOCKING);
263 final Element item = block.addChild("item").setAttribute("jid", jid.toBareJid().toString());
264 if (reportSpam) {
265 item.addChild("report", "urn:xmpp:reporting:0").addChild("spam");
266 }
267 Log.d(Config.LOGTAG,iq.toString());
268 return iq;
269 }
270
271 public IqPacket generateSetUnblockRequest(final Jid jid) {
272 final IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
273 final Element block = iq.addChild("unblock", Xmlns.BLOCKING);
274 block.addChild("item").setAttribute("jid", jid.toBareJid().toString());
275 return iq;
276 }
277
278 public IqPacket generateSetPassword(final Account account, final String newPassword) {
279 final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
280 packet.setTo(account.getServer());
281 final Element query = packet.addChild("query", Xmlns.REGISTER);
282 final Jid jid = account.getJid();
283 query.addChild("username").setContent(jid.getLocalpart());
284 query.addChild("password").setContent(newPassword);
285 return packet;
286 }
287
288 public IqPacket changeAffiliation(Conversation conference, Jid jid, String affiliation) {
289 List<Jid> jids = new ArrayList<>();
290 jids.add(jid);
291 return changeAffiliation(conference,jids,affiliation);
292 }
293
294 public IqPacket changeAffiliation(Conversation conference, List<Jid> jids, String affiliation) {
295 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
296 packet.setTo(conference.getJid().toBareJid());
297 packet.setFrom(conference.getAccount().getJid());
298 Element query = packet.query("http://jabber.org/protocol/muc#admin");
299 for(Jid jid : jids) {
300 Element item = query.addChild("item");
301 item.setAttribute("jid", jid.toString());
302 item.setAttribute("affiliation", affiliation);
303 }
304 return packet;
305 }
306
307 public IqPacket changeRole(Conversation conference, String nick, String role) {
308 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
309 packet.setTo(conference.getJid().toBareJid());
310 packet.setFrom(conference.getAccount().getJid());
311 Element item = packet.query("http://jabber.org/protocol/muc#admin").addChild("item");
312 item.setAttribute("nick", nick);
313 item.setAttribute("role", role);
314 return packet;
315 }
316
317 public IqPacket requestHttpUploadSlot(Jid host, DownloadableFile file, String mime) {
318 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
319 packet.setTo(host);
320 Element request = packet.addChild("request", Xmlns.HTTP_UPLOAD);
321 request.addChild("filename").setContent(convertFilename(file.getName()));
322 request.addChild("size").setContent(String.valueOf(file.getExpectedSize()));
323 if (mime != null) {
324 request.addChild("content-type").setContent(mime);
325 }
326 return packet;
327 }
328
329 private static String convertFilename(String name) {
330 int pos = name.indexOf('.');
331 if (pos != -1) {
332 try {
333 UUID uuid = UUID.fromString(name.substring(0, pos));
334 ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
335 bb.putLong(uuid.getMostSignificantBits());
336 bb.putLong(uuid.getLeastSignificantBits());
337 return Base64.encodeToString(bb.array(), Base64.URL_SAFE) + name.substring(pos, name.length());
338 } catch (Exception e) {
339 return name;
340 }
341 } else {
342 return name;
343 }
344 }
345
346 public IqPacket generateCreateAccountWithCaptcha(Account account, String id, Data data) {
347 final IqPacket register = new IqPacket(IqPacket.TYPE.SET);
348 register.setFrom(account.getJid().toBareJid());
349 register.setTo(account.getServer());
350 register.setId(id);
351 Element query = register.query("jabber:iq:register");
352 if (data != null) {
353 query.addChild(data);
354 }
355 return register;
356 }
357
358 public IqPacket pushTokenToAppServer(Jid appServer, String token, String deviceId) {
359 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
360 packet.setTo(appServer);
361 Element command = packet.addChild("command", "http://jabber.org/protocol/commands");
362 command.setAttribute("node","register-push-gcm");
363 command.setAttribute("action","execute");
364 Data data = new Data();
365 data.put("token", token);
366 data.put("device-id", deviceId);
367 data.submit();
368 command.addChild(data);
369 return packet;
370 }
371
372 public IqPacket enablePush(Jid jid, String node, String secret) {
373 IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
374 Element enable = packet.addChild("enable","urn:xmpp:push:0");
375 enable.setAttribute("jid",jid.toString());
376 enable.setAttribute("node", node);
377 Data data = new Data();
378 data.setFormType("http://jabber.org/protocol/pubsub#publish-options");
379 data.put("secret",secret);
380 data.submit();
381 enable.addChild(data);
382 return packet;
383 }
384
385 public IqPacket queryAffiliation(Conversation conversation, String affiliation) {
386 IqPacket packet = new IqPacket(IqPacket.TYPE.GET);
387 packet.setTo(conversation.getJid().toBareJid());
388 packet.query("http://jabber.org/protocol/muc#admin").addChild("item").setAttribute("affiliation",affiliation);
389 return packet;
390 }
391
392 public static Bundle defaultRoomConfiguration() {
393 Bundle options = new Bundle();
394 options.putString("muc#roomconfig_persistentroom", "1");
395 options.putString("muc#roomconfig_membersonly", "1");
396 options.putString("muc#roomconfig_publicroom", "0");
397 options.putString("muc#roomconfig_whois", "anyone");
398 return options;
399 }
400}