nmode's Git Repositories - signal-cli/blob - src/main/java/cli/Manager.java

   1 /**
   2  * Copyright (C) 2015 AsamK
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package cli;
  18
  19 import com.fasterxml.jackson.annotation.JsonAutoDetect;
  20 import com.fasterxml.jackson.annotation.PropertyAccessor;
  21 import com.fasterxml.jackson.databind.DeserializationFeature;
  22 import com.fasterxml.jackson.databind.JsonNode;
  23 import com.fasterxml.jackson.databind.ObjectMapper;
  24 import com.fasterxml.jackson.databind.SerializationFeature;
  25 import com.fasterxml.jackson.databind.node.ObjectNode;
  26 import org.whispersystems.libaxolotl.*;
  27 import org.whispersystems.libaxolotl.ecc.Curve;
  28 import org.whispersystems.libaxolotl.ecc.ECKeyPair;
  29 import org.whispersystems.libaxolotl.state.PreKeyRecord;
  30 import org.whispersystems.libaxolotl.state.SignedPreKeyRecord;
  31 import org.whispersystems.libaxolotl.util.KeyHelper;
  32 import org.whispersystems.libaxolotl.util.Medium;
  33 import org.whispersystems.libaxolotl.util.guava.Optional;
  34 import org.whispersystems.textsecure.api.TextSecureAccountManager;
  35 import org.whispersystems.textsecure.api.TextSecureMessagePipe;
  36 import org.whispersystems.textsecure.api.TextSecureMessageReceiver;
  37 import org.whispersystems.textsecure.api.TextSecureMessageSender;
  38 import org.whispersystems.textsecure.api.crypto.TextSecureCipher;
  39 import org.whispersystems.textsecure.api.messages.*;
  40 import org.whispersystems.textsecure.api.push.TextSecureAddress;
  41 import org.whispersystems.textsecure.api.push.TrustStore;
  42 import org.whispersystems.textsecure.api.push.exceptions.EncapsulatedExceptions;
  43 import org.whispersystems.textsecure.api.util.InvalidNumberException;
  44 import org.whispersystems.textsecure.api.util.PhoneNumberFormatter;
  45
  46 import java.io.*;
  47 import java.nio.file.Files;
  48 import java.nio.file.Paths;
  49 import java.util.*;
  50 import java.util.concurrent.TimeUnit;
  51 import java.util.concurrent.TimeoutException;
  52
  53 class Manager {
  54     private final static String URL = "https://textsecure-service.whispersystems.org";
  55     private final static TrustStore TRUST_STORE = new WhisperTrustStore();
  56
  57     public final static String PROJECT_NAME = Manager.class.getPackage().getImplementationTitle();
  58     public final static String PROJECT_VERSION = Manager.class.getPackage().getImplementationVersion();
  59     private final static String USER_AGENT = PROJECT_NAME + " " + PROJECT_VERSION;
  60
  61     private final static String settingsPath = System.getProperty("user.home") + "/.config/textsecure";
  62     private final static String dataPath = settingsPath + "/data";
  63     private final static String attachmentsPath = settingsPath + "/attachments";
  64
  65     private final ObjectMapper jsonProcessot = new ObjectMapper();
  66     private String username;
  67     private String password;
  68     private String signalingKey;
  69     private int preKeyIdOffset;
  70     private int nextSignedPreKeyId;
  71
  72     private boolean registered = false;
  73
  74     private JsonAxolotlStore axolotlStore;
  75     private TextSecureAccountManager accountManager;
  76     private JsonGroupStore groupStore;
  77
  78     public Manager(String username) {
  79         this.username = username;
  80         jsonProcessot.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.NONE); // disable autodetect
  81         jsonProcessot.enable(SerializationFeature.INDENT_OUTPUT); // for pretty print, you can disable it.
  82         jsonProcessot.enable(SerializationFeature.WRITE_NULL_MAP_VALUES);
  83         jsonProcessot.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
  84     }
  85
  86     public String getFileName() {
  87         new File(dataPath).mkdirs();
  88         return dataPath + "/" + username;
  89     }
  90
  91     public boolean userExists() {
  92         File f = new File(getFileName());
  93         return !(!f.exists() || f.isDirectory());
  94     }
  95
  96     public boolean userHasKeys() {
  97         return axolotlStore != null;
  98     }
  99
 100     private JsonNode getNotNullNode(JsonNode parent, String name) throws InvalidObjectException {
 101         JsonNode node = parent.get(name);
 102         if (node == null) {
 103             throw new InvalidObjectException(String.format("Incorrect file format: expected parameter %s not found ", name));
 104         }
 105
 106         return node;
 107     }
 108
 109     public void load() throws IOException, InvalidKeyException {
 110         JsonNode rootNode = jsonProcessot.readTree(new File(getFileName()));
 111
 112         username = getNotNullNode(rootNode, "username").asText();
 113         password = getNotNullNode(rootNode, "password").asText();
 114         if (rootNode.has("signalingKey")) {
 115             signalingKey = getNotNullNode(rootNode, "signalingKey").asText();
 116         }
 117         if (rootNode.has("preKeyIdOffset")) {
 118             preKeyIdOffset = getNotNullNode(rootNode, "preKeyIdOffset").asInt(0);
 119         } else {
 120             preKeyIdOffset = 0;
 121         }
 122         if (rootNode.has("nextSignedPreKeyId")) {
 123             nextSignedPreKeyId = getNotNullNode(rootNode, "nextSignedPreKeyId").asInt();
 124         } else {
 125             nextSignedPreKeyId = 0;
 126         }
 127         axolotlStore = jsonProcessot.convertValue(getNotNullNode(rootNode, "axolotlStore"), JsonAxolotlStore.class); //new JsonAxolotlStore(in.getJSONObject("axolotlStore"));
 128         registered = getNotNullNode(rootNode, "registered").asBoolean();
 129         JsonNode groupStoreNode = rootNode.get("groupStore");
 130         if (groupStoreNode != null) {
 131             groupStore = jsonProcessot.convertValue(groupStoreNode, JsonGroupStore.class);
 132         }
 133         if (groupStore == null) {
 134             groupStore = new JsonGroupStore();
 135         }
 136         accountManager = new TextSecureAccountManager(URL, TRUST_STORE, username, password, USER_AGENT);
 137     }
 138
 139     public void save() {
 140         ObjectNode rootNode = jsonProcessot.createObjectNode();
 141         rootNode.put("username", username)
 142                 .put("password", password)
 143                 .put("signalingKey", signalingKey)
 144                 .put("preKeyIdOffset", preKeyIdOffset)
 145                 .put("nextSignedPreKeyId", nextSignedPreKeyId)
 146                 .put("registered", registered)
 147                 .putPOJO("axolotlStore", axolotlStore)
 148                 .putPOJO("groupStore", groupStore)
 149         ;
 150         try {
 151             jsonProcessot.writeValue(new File(getFileName()), rootNode);
 152         } catch (Exception e) {
 153             System.err.println(String.format("Error saving file: %s", e.getMessage()));
 154         }
 155     }
 156
 157     public void createNewIdentity() {
 158         IdentityKeyPair identityKey = KeyHelper.generateIdentityKeyPair();
 159         int registrationId = KeyHelper.generateRegistrationId(false);
 160         axolotlStore = new JsonAxolotlStore(identityKey, registrationId);
 161         groupStore = new JsonGroupStore();
 162         registered = false;
 163     }
 164
 165     public boolean isRegistered() {
 166         return registered;
 167     }
 168
 169     public void register(boolean voiceVerication) throws IOException {
 170         password = Util.getSecret(18);
 171
 172         accountManager = new TextSecureAccountManager(URL, TRUST_STORE, username, password, USER_AGENT);
 173
 174         if (voiceVerication)
 175             accountManager.requestVoiceVerificationCode();
 176         else
 177             accountManager.requestSmsVerificationCode();
 178
 179         registered = false;
 180     }
 181
 182     private static final int BATCH_SIZE = 100;
 183
 184     private List<PreKeyRecord> generatePreKeys() {
 185         List<PreKeyRecord> records = new LinkedList<>();
 186
 187         for (int i = 0; i < BATCH_SIZE; i++) {
 188             int preKeyId = (preKeyIdOffset + i) % Medium.MAX_VALUE;
 189             ECKeyPair keyPair = Curve.generateKeyPair();
 190             PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);
 191
 192             axolotlStore.storePreKey(preKeyId, record);
 193             records.add(record);
 194         }
 195
 196         preKeyIdOffset = (preKeyIdOffset + BATCH_SIZE + 1) % Medium.MAX_VALUE;
 197         return records;
 198     }
 199
 200     private PreKeyRecord generateLastResortPreKey() {
 201         if (axolotlStore.containsPreKey(Medium.MAX_VALUE)) {
 202             try {
 203                 return axolotlStore.loadPreKey(Medium.MAX_VALUE);
 204             } catch (InvalidKeyIdException e) {
 205                 axolotlStore.removePreKey(Medium.MAX_VALUE);
 206             }
 207         }
 208
 209         ECKeyPair keyPair = Curve.generateKeyPair();
 210         PreKeyRecord record = new PreKeyRecord(Medium.MAX_VALUE, keyPair);
 211
 212         axolotlStore.storePreKey(Medium.MAX_VALUE, record);
 213
 214         return record;
 215     }
 216
 217     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 218         try {
 219             ECKeyPair keyPair = Curve.generateKeyPair();
 220             byte[] signature = Curve.calculateSignature(identityKeyPair.getPrivateKey(), keyPair.getPublicKey().serialize());
 221             SignedPreKeyRecord record = new SignedPreKeyRecord(nextSignedPreKeyId, System.currentTimeMillis(), keyPair, signature);
 222
 223             axolotlStore.storeSignedPreKey(nextSignedPreKeyId, record);
 224             nextSignedPreKeyId = (nextSignedPreKeyId + 1) % Medium.MAX_VALUE;
 225
 226             return record;
 227         } catch (InvalidKeyException e) {
 228             throw new AssertionError(e);
 229         }
 230     }
 231
 232     public void verifyAccount(String verificationCode) throws IOException {
 233         verificationCode = verificationCode.replace("-", "");
 234         signalingKey = Util.getSecret(52);
 235         accountManager.verifyAccountWithCode(verificationCode, signalingKey, axolotlStore.getLocalRegistrationId(), false);
 236
 237         //accountManager.setGcmId(Optional.of(GoogleCloudMessaging.getInstance(this).register(REGISTRATION_ID)));
 238         registered = true;
 239
 240         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 241
 242         PreKeyRecord lastResortKey = generateLastResortPreKey();
 243
 244         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(axolotlStore.getIdentityKeyPair());
 245
 246         accountManager.setPreKeys(axolotlStore.getIdentityKeyPair().getPublicKey(), lastResortKey, signedPreKeyRecord, oneTimePreKeys);
 247     }
 248
 249
 250     private static List<TextSecureAttachment> getTextSecureAttachments(List<String> attachments) throws AttachmentInvalidException {
 251         List<TextSecureAttachment> textSecureAttachments = null;
 252         if (attachments != null) {
 253             textSecureAttachments = new ArrayList<>(attachments.size());
 254             for (String attachment : attachments) {
 255                 try {
 256                     textSecureAttachments.add(createAttachment(attachment));
 257                 } catch (IOException e) {
 258                     throw new AttachmentInvalidException(attachment, e);
 259                 }
 260             }
 261         }
 262         return textSecureAttachments;
 263     }
 264
 265     private static TextSecureAttachmentStream createAttachment(String attachment) throws IOException {
 266         File attachmentFile = new File(attachment);
 267         InputStream attachmentStream = new FileInputStream(attachmentFile);
 268         final long attachmentSize = attachmentFile.length();
 269         String mime = Files.probeContentType(Paths.get(attachment));
 270         return new TextSecureAttachmentStream(attachmentStream, mime, attachmentSize, null);
 271     }
 272
 273     public void sendGroupMessage(String messageText, List<String> attachments,
 274                                  byte[] groupId)
 275             throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 276         final TextSecureDataMessage.Builder messageBuilder = TextSecureDataMessage.newBuilder().withBody(messageText);
 277         if (attachments != null) {
 278             messageBuilder.withAttachments(getTextSecureAttachments(attachments));
 279         }
 280         if (groupId != null) {
 281             TextSecureGroup group = TextSecureGroup.newBuilder(TextSecureGroup.Type.DELIVER)
 282                     .withId(groupId)
 283                     .build();
 284             messageBuilder.asGroupMessage(group);
 285         }
 286         TextSecureDataMessage message = messageBuilder.build();
 287
 288         sendMessage(message, getGroupInfo(groupId).members);
 289     }
 290
 291     public void sendQuitGroupMessage(byte[] groupId) throws GroupNotFoundException, IOException, EncapsulatedExceptions {
 292         TextSecureGroup group = TextSecureGroup.newBuilder(TextSecureGroup.Type.QUIT)
 293                 .withId(groupId)
 294                 .build();
 295
 296         TextSecureDataMessage message = TextSecureDataMessage.newBuilder()
 297                 .asGroupMessage(group)
 298                 .build();
 299
 300         sendMessage(message, getGroupInfo(groupId).members);
 301     }
 302
 303     public byte[] sendUpdateGroupMessage(byte[] groupId, String name, Collection<String> members, String avatarFile) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 304         GroupInfo g;
 305         if (groupId == null) {
 306             // Create new group
 307             g = new GroupInfo(Util.getSecretBytes(16));
 308             g.members.add(getUsername());
 309         } else {
 310             g = getGroupInfo(groupId);
 311         }
 312
 313         if (name != null) {
 314             g.name = name;
 315         }
 316
 317         if (members != null) {
 318             for (String member : members) {
 319                 try {
 320                     g.members.add(canonicalizeNumber(member));
 321                 } catch (InvalidNumberException e) {
 322                     System.err.println("Failed to add member \"" + member + "\" to group: " + e.getMessage());
 323                     System.err.println("Aborting…");
 324                     System.exit(1);
 325                 }
 326             }
 327         }
 328
 329         TextSecureGroup.Builder group = TextSecureGroup.newBuilder(TextSecureGroup.Type.UPDATE)
 330                 .withId(g.groupId)
 331                 .withName(g.name)
 332                 .withMembers(new ArrayList<>(g.members));
 333
 334         if (avatarFile != null) {
 335             try {
 336                 group.withAvatar(createAttachment(avatarFile));
 337                 // TODO
 338                 g.avatarId = 0;
 339             } catch (IOException e) {
 340                 throw new AttachmentInvalidException(avatarFile, e);
 341             }
 342         }
 343
 344         setGroupInfo(g);
 345
 346         TextSecureDataMessage message = TextSecureDataMessage.newBuilder()
 347                 .asGroupMessage(group.build())
 348                 .build();
 349
 350         sendMessage(message, g.members);
 351         return g.groupId;
 352     }
 353
 354     public void sendMessage(String messageText, List<String> attachments,
 355                             Collection<String> recipients)
 356             throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 357         final TextSecureDataMessage.Builder messageBuilder = TextSecureDataMessage.newBuilder().withBody(messageText);
 358         if (attachments != null) {
 359             messageBuilder.withAttachments(getTextSecureAttachments(attachments));
 360         }
 361         TextSecureDataMessage message = messageBuilder.build();
 362
 363         sendMessage(message, recipients);
 364     }
 365
 366     public void sendEndSessionMessage(List<String> recipients) throws IOException, EncapsulatedExceptions {
 367         TextSecureDataMessage message = TextSecureDataMessage.newBuilder()
 368                 .asEndSessionMessage()
 369                 .build();
 370
 371         sendMessage(message, recipients);
 372     }
 373
 374     private void sendMessage(TextSecureDataMessage message, Collection<String> recipients)
 375             throws IOException, EncapsulatedExceptions {
 376         TextSecureMessageSender messageSender = new TextSecureMessageSender(URL, TRUST_STORE, username, password,
 377                 axolotlStore, USER_AGENT, Optional.<TextSecureMessageSender.EventListener>absent());
 378
 379         Set<TextSecureAddress> recipientsTS = new HashSet<>(recipients.size());
 380         for (String recipient : recipients) {
 381             try {
 382                 recipientsTS.add(getPushAddress(recipient));
 383             } catch (InvalidNumberException e) {
 384                 System.err.println("Failed to add recipient \"" + recipient + "\": " + e.getMessage());
 385                 System.err.println("Aborting sending.");
 386                 return;
 387             }
 388         }
 389
 390         messageSender.sendMessage(new ArrayList<>(recipientsTS), message);
 391
 392         if (message.isEndSession()) {
 393             for (TextSecureAddress recipient : recipientsTS) {
 394                 handleEndSession(recipient.getNumber());
 395             }
 396         }
 397     }
 398
 399     private TextSecureContent decryptMessage(TextSecureEnvelope envelope) {
 400         TextSecureCipher cipher = new TextSecureCipher(new TextSecureAddress(username), axolotlStore);
 401         try {
 402             return cipher.decrypt(envelope);
 403         } catch (Exception e) {
 404             // TODO handle all exceptions
 405             e.printStackTrace();
 406             return null;
 407         }
 408     }
 409
 410     private void handleEndSession(String source) {
 411         axolotlStore.deleteAllSessions(source);
 412     }
 413
 414     public interface ReceiveMessageHandler {
 415         void handleMessage(TextSecureEnvelope envelope, TextSecureContent decryptedContent, GroupInfo group);
 416     }
 417
 418     public void receiveMessages(int timeoutSeconds, boolean returnOnTimeout, ReceiveMessageHandler handler) throws IOException {
 419         final TextSecureMessageReceiver messageReceiver = new TextSecureMessageReceiver(URL, TRUST_STORE, username, password, signalingKey, USER_AGENT);
 420         TextSecureMessagePipe messagePipe = null;
 421
 422         try {
 423             messagePipe = messageReceiver.createMessagePipe();
 424
 425             while (true) {
 426                 TextSecureEnvelope envelope;
 427                 TextSecureContent content = null;
 428                 GroupInfo group = null;
 429                 try {
 430                     envelope = messagePipe.read(timeoutSeconds, TimeUnit.SECONDS);
 431                     if (!envelope.isReceipt()) {
 432                         content = decryptMessage(envelope);
 433                         if (content != null) {
 434                             if (content.getDataMessage().isPresent()) {
 435                                 TextSecureDataMessage message = content.getDataMessage().get();
 436                                 if (message.getGroupInfo().isPresent()) {
 437                                     TextSecureGroup groupInfo = message.getGroupInfo().get();
 438                                     switch (groupInfo.getType()) {
 439                                         case UPDATE:
 440                                             try {
 441                                                 group = groupStore.getGroup(groupInfo.getGroupId());
 442                                             } catch (GroupNotFoundException e) {
 443                                                 group = new GroupInfo(groupInfo.getGroupId());
 444                                             }
 445
 446                                             if (groupInfo.getAvatar().isPresent()) {
 447                                                 TextSecureAttachment avatar = groupInfo.getAvatar().get();
 448                                                 if (avatar.isPointer()) {
 449                                                     long avatarId = avatar.asPointer().getId();
 450                                                     try {
 451                                                         retrieveAttachment(avatar.asPointer());
 452                                                         group.avatarId = avatarId;
 453                                                     } catch (IOException | InvalidMessageException e) {
 454                                                         System.err.println("Failed to retrieve group avatar (" + avatarId + "): " + e.getMessage());
 455                                                     }
 456                                                 }
 457                                             }
 458
 459                                             if (groupInfo.getName().isPresent()) {
 460                                                 group.name = groupInfo.getName().get();
 461                                             }
 462
 463                                             if (groupInfo.getMembers().isPresent()) {
 464                                                 group.members.addAll(groupInfo.getMembers().get());
 465                                             }
 466
 467                                             groupStore.updateGroup(group);
 468                                             break;
 469                                         case DELIVER:
 470                                             try {
 471                                                 group = groupStore.getGroup(groupInfo.getGroupId());
 472                                             } catch (GroupNotFoundException e) {
 473                                             }
 474                                             break;
 475                                         case QUIT:
 476                                             try {
 477                                                 group = groupStore.getGroup(groupInfo.getGroupId());
 478                                                 group.members.remove(envelope.getSource());
 479                                             } catch (GroupNotFoundException e) {
 480                                             }
 481                                             break;
 482                                     }
 483                                 }
 484                                 if (message.isEndSession()) {
 485                                     handleEndSession(envelope.getSource());
 486                                 }
 487                                 if (message.getAttachments().isPresent()) {
 488                                     for (TextSecureAttachment attachment : message.getAttachments().get()) {
 489                                         if (attachment.isPointer()) {
 490                                             try {
 491                                                 retrieveAttachment(attachment.asPointer());
 492                                             } catch (IOException | InvalidMessageException e) {
 493                                                 System.err.println("Failed to retrieve attachment (" + attachment.asPointer().getId() + "): " + e.getMessage());
 494                                             }
 495                                         }
 496                                     }
 497                                 }
 498                             }
 499                         }
 500                     }
 501                     handler.handleMessage(envelope, content, group);
 502                 } catch (TimeoutException e) {
 503                     if (returnOnTimeout)
 504                         return;
 505                 } catch (InvalidVersionException e) {
 506                     System.err.println("Ignoring error: " + e.getMessage());
 507                 }
 508                 save();
 509             }
 510         } finally {
 511             if (messagePipe != null)
 512                 messagePipe.shutdown();
 513         }
 514     }
 515
 516     public File getAttachmentFile(long attachmentId) {
 517         return new File(attachmentsPath + "/" + attachmentId);
 518     }
 519
 520     private File retrieveAttachment(TextSecureAttachmentPointer pointer) throws IOException, InvalidMessageException {
 521         final TextSecureMessageReceiver messageReceiver = new TextSecureMessageReceiver(URL, TRUST_STORE, username, password, signalingKey, USER_AGENT);
 522
 523         File tmpFile = File.createTempFile("ts_attach_" + pointer.getId(), ".tmp");
 524         InputStream input = messageReceiver.retrieveAttachment(pointer, tmpFile);
 525
 526         new File(attachmentsPath).mkdirs();
 527         File outputFile = getAttachmentFile(pointer.getId());
 528         OutputStream output = null;
 529         try {
 530             output = new FileOutputStream(outputFile);
 531             byte[] buffer = new byte[4096];
 532             int read;
 533
 534             while ((read = input.read(buffer)) != -1) {
 535                 output.write(buffer, 0, read);
 536             }
 537         } catch (FileNotFoundException e) {
 538             e.printStackTrace();
 539             return null;
 540         } finally {
 541             if (output != null) {
 542                 output.close();
 543                 output = null;
 544             }
 545             if (!tmpFile.delete()) {
 546                 System.err.println("Failed to delete temp file: " + tmpFile);
 547             }
 548         }
 549         if (pointer.getPreview().isPresent()) {
 550             File previewFile = new File(outputFile + ".preview");
 551             try {
 552                 output = new FileOutputStream(previewFile);
 553                 byte[] preview = pointer.getPreview().get();
 554                 output.write(preview, 0, preview.length);
 555             } catch (FileNotFoundException e) {
 556                 e.printStackTrace();
 557                 return null;
 558             } finally {
 559                 if (output != null) {
 560                     output.close();
 561                 }
 562             }
 563         }
 564         return outputFile;
 565     }
 566
 567     public String canonicalizeNumber(String number) throws InvalidNumberException {
 568         String localNumber = username;
 569         return PhoneNumberFormatter.formatNumber(number, localNumber);
 570     }
 571
 572     private TextSecureAddress getPushAddress(String number) throws InvalidNumberException {
 573         String e164number = canonicalizeNumber(number);
 574         return new TextSecureAddress(e164number);
 575     }
 576
 577     public GroupInfo getGroupInfo(byte[] groupId) throws GroupNotFoundException {
 578         return groupStore.getGroup(groupId);
 579     }
 580
 581     public void setGroupInfo(GroupInfo group) {
 582         groupStore.updateGroup(group);
 583     }
 584
 585     public String getUsername() {
 586         return username;
 587     }
 588 }