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

   1 /*
   2   Copyright (C) 2015-2020 AsamK and contributors
   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 org.asamk.signal.manager;
  18
  19 import org.asamk.Signal;
  20 import org.asamk.signal.AttachmentInvalidException;
  21 import org.asamk.signal.GroupNotFoundException;
  22 import org.asamk.signal.NotAGroupMemberException;
  23 import org.asamk.signal.TrustLevel;
  24 import org.asamk.signal.UserAlreadyExists;
  25 import org.asamk.signal.storage.SignalAccount;
  26 import org.asamk.signal.storage.contacts.ContactInfo;
  27 import org.asamk.signal.storage.groups.GroupInfo;
  28 import org.asamk.signal.storage.groups.JsonGroupStore;
  29 import org.asamk.signal.storage.protocol.JsonIdentityKeyStore;
  30 import org.asamk.signal.storage.threads.ThreadInfo;
  31 import org.asamk.signal.util.IOUtils;
  32 import org.asamk.signal.util.Util;
  33 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  34 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  35 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  36 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  37 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  38 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  39 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  40 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  41 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  42 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  43 import org.signal.libsignal.metadata.SelfSendException;
  44 import org.whispersystems.libsignal.IdentityKey;
  45 import org.whispersystems.libsignal.IdentityKeyPair;
  46 import org.whispersystems.libsignal.InvalidKeyException;
  47 import org.whispersystems.libsignal.InvalidMessageException;
  48 import org.whispersystems.libsignal.InvalidVersionException;
  49 import org.whispersystems.libsignal.ecc.Curve;
  50 import org.whispersystems.libsignal.ecc.ECKeyPair;
  51 import org.whispersystems.libsignal.ecc.ECPublicKey;
  52 import org.whispersystems.libsignal.state.PreKeyRecord;
  53 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  54 import org.whispersystems.libsignal.util.KeyHelper;
  55 import org.whispersystems.libsignal.util.Medium;
  56 import org.whispersystems.libsignal.util.Pair;
  57 import org.whispersystems.libsignal.util.guava.Optional;
  58 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  59 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  60 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  61 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  62 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  63 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccess;
  64 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
  65 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  66 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  67 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  68 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  69 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
  70 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
  71 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  72 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
  73 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
  74 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
  75 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
  76 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
  77 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
  78 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
  79 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
  80 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
  81 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
  82 import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
  83 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
  84 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
  85 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
  86 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
  87 import org.whispersystems.signalservice.api.push.ContactTokenDetails;
  88 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  89 import org.whispersystems.signalservice.api.push.exceptions.AuthorizationFailedException;
  90 import org.whispersystems.signalservice.api.push.exceptions.EncapsulatedExceptions;
  91 import org.whispersystems.signalservice.api.push.exceptions.NetworkFailureException;
  92 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
  93 import org.whispersystems.signalservice.api.util.InvalidNumberException;
  94 import org.whispersystems.signalservice.api.util.SleepTimer;
  95 import org.whispersystems.signalservice.api.util.StreamDetails;
  96 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
  97 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
  98 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
  99 import org.whispersystems.util.Base64;
 100
 101 import java.io.File;
 102 import java.io.FileInputStream;
 103 import java.io.FileNotFoundException;
 104 import java.io.FileOutputStream;
 105 import java.io.IOException;
 106 import java.io.InputStream;
 107 import java.io.OutputStream;
 108 import java.net.URI;
 109 import java.nio.file.Files;
 110 import java.nio.file.Paths;
 111 import java.nio.file.StandardCopyOption;
 112 import java.util.ArrayList;
 113 import java.util.Arrays;
 114 import java.util.Collection;
 115 import java.util.Collections;
 116 import java.util.Date;
 117 import java.util.HashSet;
 118 import java.util.LinkedList;
 119 import java.util.List;
 120 import java.util.Locale;
 121 import java.util.Map;
 122 import java.util.Objects;
 123 import java.util.Set;
 124 import java.util.concurrent.TimeUnit;
 125 import java.util.concurrent.TimeoutException;
 126
 127 public class Manager implements Signal {
 128
 129     private final String settingsPath;
 130     private final String dataPath;
 131     private final String attachmentsPath;
 132     private final String avatarsPath;
 133     private final SleepTimer timer = new UptimeSleepTimer();
 134
 135     private SignalAccount account;
 136     private String username;
 137     private SignalServiceAccountManager accountManager;
 138     private SignalServiceMessagePipe messagePipe = null;
 139     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 140
 141     public Manager(String username, String settingsPath) {
 142         this.username = username;
 143         this.settingsPath = settingsPath;
 144         this.dataPath = this.settingsPath + "/data";
 145         this.attachmentsPath = this.settingsPath + "/attachments";
 146         this.avatarsPath = this.settingsPath + "/avatars";
 147
 148     }
 149
 150     public String getUsername() {
 151         return username;
 152     }
 153
 154     private SignalServiceAddress getSelfAddress() {
 155         return new SignalServiceAddress(null, username);
 156     }
 157
 158     private SignalServiceAccountManager getSignalServiceAccountManager() {
 159         return new SignalServiceAccountManager(BaseConfig.serviceConfiguration, null, account.getUsername(), account.getPassword(), account.getDeviceId(), BaseConfig.USER_AGENT, timer);
 160     }
 161
 162     private IdentityKey getIdentity() {
 163         return account.getSignalProtocolStore().getIdentityKeyPair().getPublicKey();
 164     }
 165
 166     public int getDeviceId() {
 167         return account.getDeviceId();
 168     }
 169
 170     private String getMessageCachePath() {
 171         return this.dataPath + "/" + username + ".d/msg-cache";
 172     }
 173
 174     private String getMessageCachePath(String sender) {
 175         return getMessageCachePath() + "/" + sender.replace("/", "_");
 176     }
 177
 178     private File getMessageCacheFile(String sender, long now, long timestamp) throws IOException {
 179         String cachePath = getMessageCachePath(sender);
 180         IOUtils.createPrivateDirectories(cachePath);
 181         return new File(cachePath + "/" + now + "_" + timestamp);
 182     }
 183
 184     public boolean userHasKeys() {
 185         return account != null && account.getSignalProtocolStore() != null;
 186     }
 187
 188     public void init() throws IOException {
 189         if (!SignalAccount.userExists(dataPath, username)) {
 190             return;
 191         }
 192         account = SignalAccount.load(dataPath, username);
 193
 194         migrateLegacyConfigs();
 195
 196         accountManager = getSignalServiceAccountManager();
 197         try {
 198             if (account.isRegistered() && accountManager.getPreKeysCount() < BaseConfig.PREKEY_MINIMUM_COUNT) {
 199                 refreshPreKeys();
 200                 account.save();
 201             }
 202         } catch (AuthorizationFailedException e) {
 203             System.err.println("Authorization failed, was the number registered elsewhere?");
 204             throw e;
 205         }
 206     }
 207
 208     private void migrateLegacyConfigs() {
 209         // Copy group avatars that were previously stored in the attachments folder
 210         // to the new avatar folder
 211         if (JsonGroupStore.groupsWithLegacyAvatarId.size() > 0) {
 212             for (GroupInfo g : JsonGroupStore.groupsWithLegacyAvatarId) {
 213                 File avatarFile = getGroupAvatarFile(g.groupId);
 214                 File attachmentFile = getAttachmentFile(g.getAvatarId());
 215                 if (!avatarFile.exists() && attachmentFile.exists()) {
 216                     try {
 217                         IOUtils.createPrivateDirectories(avatarsPath);
 218                         Files.copy(attachmentFile.toPath(), avatarFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 219                     } catch (Exception e) {
 220                         // Ignore
 221                     }
 222                 }
 223             }
 224             JsonGroupStore.groupsWithLegacyAvatarId.clear();
 225             account.save();
 226         }
 227         if (account.getProfileKey() == null) {
 228             // Old config file, creating new profile key
 229             account.setProfileKey(KeyUtils.createProfileKey());
 230             account.save();
 231         }
 232     }
 233
 234     private void createNewIdentity() throws IOException {
 235         IdentityKeyPair identityKey = KeyHelper.generateIdentityKeyPair();
 236         int registrationId = KeyHelper.generateRegistrationId(false);
 237         if (username == null) {
 238             account = SignalAccount.createTemporaryAccount(identityKey, registrationId);
 239         } else {
 240             byte[] profileKey = KeyUtils.createProfileKey();
 241             account = SignalAccount.create(dataPath, username, identityKey, registrationId, profileKey);
 242             account.save();
 243         }
 244     }
 245
 246     public boolean isRegistered() {
 247         return account != null && account.isRegistered();
 248     }
 249
 250     public void register(boolean voiceVerification) throws IOException {
 251         if (account == null) {
 252             createNewIdentity();
 253         }
 254         account.setPassword(KeyUtils.createPassword());
 255         accountManager = getSignalServiceAccountManager();
 256
 257         if (voiceVerification) {
 258             accountManager.requestVoiceVerificationCode(Locale.getDefault(), Optional.<String>absent(), Optional.<String>absent());
 259         } else {
 260             accountManager.requestSmsVerificationCode(false, Optional.<String>absent(), Optional.<String>absent());
 261         }
 262
 263         account.setRegistered(false);
 264         account.save();
 265     }
 266
 267     public void updateAccountAttributes() throws IOException {
 268         accountManager.setAccountAttributes(account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, account.getRegistrationLockPin(), account.getRegistrationLock(), getSelfUnidentifiedAccessKey(), false);
 269     }
 270
 271     public void setProfileName(String name) throws IOException {
 272         accountManager.setProfileName(account.getProfileKey(), name);
 273     }
 274
 275     public void setProfileAvatar(File avatar) throws IOException {
 276         final StreamDetails streamDetails = Utils.createStreamDetailsFromFile(avatar);
 277         accountManager.setProfileAvatar(account.getProfileKey(), streamDetails);
 278         streamDetails.getStream().close();
 279     }
 280
 281     public void removeProfileAvatar() throws IOException {
 282         accountManager.setProfileAvatar(account.getProfileKey(), null);
 283     }
 284
 285     public void unregister() throws IOException {
 286         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 287         // If this is the master device, other users can't send messages to this number anymore.
 288         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 289         accountManager.setGcmId(Optional.<String>absent());
 290
 291         account.setRegistered(false);
 292         account.save();
 293     }
 294
 295     public String getDeviceLinkUri() throws TimeoutException, IOException {
 296         if (account == null) {
 297             createNewIdentity();
 298         }
 299         account.setPassword(KeyUtils.createPassword());
 300         accountManager = getSignalServiceAccountManager();
 301         String uuid = accountManager.getNewDeviceUuid();
 302
 303         return Utils.createDeviceLinkUri(new Utils.DeviceLinkInfo(uuid, getIdentity().getPublicKey()));
 304     }
 305
 306     public void finishDeviceLink(String deviceName) throws IOException, InvalidKeyException, TimeoutException, UserAlreadyExists {
 307         account.setSignalingKey(KeyUtils.createSignalingKey());
 308         SignalServiceAccountManager.NewDeviceRegistrationReturn ret = accountManager.finishNewDeviceRegistration(account.getSignalProtocolStore().getIdentityKeyPair(), account.getSignalingKey(), false, true, account.getSignalProtocolStore().getLocalRegistrationId(), deviceName);
 309
 310         username = ret.getNumber();
 311         // TODO do this check before actually registering
 312         if (SignalAccount.userExists(dataPath, username)) {
 313             throw new UserAlreadyExists(username, SignalAccount.getFileName(dataPath, username));
 314         }
 315
 316         // Create new account with the synced identity
 317         byte[] profileKey = ret.getProfileKey();
 318         if (profileKey == null) {
 319             profileKey = KeyUtils.createProfileKey();
 320         }
 321         account = SignalAccount.createLinkedAccount(dataPath, username, account.getPassword(), ret.getDeviceId(), ret.getIdentity(), account.getSignalProtocolStore().getLocalRegistrationId(), account.getSignalingKey(), profileKey);
 322
 323         refreshPreKeys();
 324
 325         requestSyncGroups();
 326         requestSyncContacts();
 327         requestSyncBlocked();
 328         requestSyncConfiguration();
 329
 330         account.save();
 331     }
 332
 333     public List<DeviceInfo> getLinkedDevices() throws IOException {
 334         List<DeviceInfo> devices = accountManager.getDevices();
 335         account.setMultiDevice(devices.size() > 1);
 336         account.save();
 337         return devices;
 338     }
 339
 340     public void removeLinkedDevices(int deviceId) throws IOException {
 341         accountManager.removeDevice(deviceId);
 342         List<DeviceInfo> devices = accountManager.getDevices();
 343         account.setMultiDevice(devices.size() > 1);
 344         account.save();
 345     }
 346
 347     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 348         Utils.DeviceLinkInfo info = Utils.parseDeviceLinkUri(linkUri);
 349
 350         addDevice(info.deviceIdentifier, info.deviceKey);
 351     }
 352
 353     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 354         IdentityKeyPair identityKeyPair = account.getSignalProtocolStore().getIdentityKeyPair();
 355         String verificationCode = accountManager.getNewDeviceVerificationCode();
 356
 357         accountManager.addDevice(deviceIdentifier, deviceKey, identityKeyPair, Optional.of(account.getProfileKey()), verificationCode);
 358         account.setMultiDevice(true);
 359         account.save();
 360     }
 361
 362     private List<PreKeyRecord> generatePreKeys() {
 363         List<PreKeyRecord> records = new ArrayList<>(BaseConfig.PREKEY_BATCH_SIZE);
 364
 365         final int offset = account.getPreKeyIdOffset();
 366         for (int i = 0; i < BaseConfig.PREKEY_BATCH_SIZE; i++) {
 367             int preKeyId = (offset + i) % Medium.MAX_VALUE;
 368             ECKeyPair keyPair = Curve.generateKeyPair();
 369             PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);
 370
 371             records.add(record);
 372         }
 373
 374         account.addPreKeys(records);
 375         account.save();
 376
 377         return records;
 378     }
 379
 380     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 381         try {
 382             ECKeyPair keyPair = Curve.generateKeyPair();
 383             byte[] signature = Curve.calculateSignature(identityKeyPair.getPrivateKey(), keyPair.getPublicKey().serialize());
 384             SignedPreKeyRecord record = new SignedPreKeyRecord(account.getNextSignedPreKeyId(), System.currentTimeMillis(), keyPair, signature);
 385
 386             account.addSignedPreKey(record);
 387             account.save();
 388
 389             return record;
 390         } catch (InvalidKeyException e) {
 391             throw new AssertionError(e);
 392         }
 393     }
 394
 395     public void verifyAccount(String verificationCode, String pin) throws IOException {
 396         verificationCode = verificationCode.replace("-", "");
 397         account.setSignalingKey(KeyUtils.createSignalingKey());
 398         // TODO make unrestricted unidentified access configurable
 399         accountManager.verifyAccountWithCode(verificationCode, account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, pin, null, getSelfUnidentifiedAccessKey(), false);
 400
 401         //accountManager.setGcmId(Optional.of(GoogleCloudMessaging.getInstance(this).register(REGISTRATION_ID)));
 402         account.setRegistered(true);
 403         account.setRegistrationLockPin(pin);
 404
 405         refreshPreKeys();
 406         account.save();
 407     }
 408
 409     public void setRegistrationLockPin(Optional<String> pin) throws IOException {
 410         if (pin.isPresent()) {
 411             account.setRegistrationLockPin(pin.get());
 412             throw new RuntimeException("Not implemented anymore, will be replaced with KBS");
 413         } else {
 414             account.setRegistrationLockPin(null);
 415             accountManager.removeV1Pin();
 416         }
 417         account.save();
 418     }
 419
 420     private void refreshPreKeys() throws IOException {
 421         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 422         final IdentityKeyPair identityKeyPair = account.getSignalProtocolStore().getIdentityKeyPair();
 423         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 424
 425         accountManager.setPreKeys(getIdentity(), signedPreKeyRecord, oneTimePreKeys);
 426     }
 427
 428     private SignalServiceMessageReceiver getMessageReceiver() {
 429         return new SignalServiceMessageReceiver(BaseConfig.serviceConfiguration, null, username, account.getPassword(), account.getDeviceId(), account.getSignalingKey(), BaseConfig.USER_AGENT, null, timer);
 430     }
 431
 432     private SignalServiceMessageSender getMessageSender() {
 433         return new SignalServiceMessageSender(BaseConfig.serviceConfiguration, null, username, account.getPassword(),
 434                 account.getDeviceId(), account.getSignalProtocolStore(), BaseConfig.USER_AGENT, account.isMultiDevice(), Optional.fromNullable(messagePipe), Optional.fromNullable(unidentifiedMessagePipe), Optional.<SignalServiceMessageSender.EventListener>absent());
 435     }
 436
 437     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(byte[] groupId) throws IOException {
 438         File file = getGroupAvatarFile(groupId);
 439         if (!file.exists()) {
 440             return Optional.absent();
 441         }
 442
 443         return Optional.of(Utils.createAttachment(file));
 444     }
 445
 446     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(String number) throws IOException {
 447         File file = getContactAvatarFile(number);
 448         if (!file.exists()) {
 449             return Optional.absent();
 450         }
 451
 452         return Optional.of(Utils.createAttachment(file));
 453     }
 454
 455     private GroupInfo getGroupForSending(byte[] groupId) throws GroupNotFoundException, NotAGroupMemberException {
 456         GroupInfo g = account.getGroupStore().getGroup(groupId);
 457         if (g == null) {
 458             throw new GroupNotFoundException(groupId);
 459         }
 460         for (String member : g.members) {
 461             if (member.equals(this.username)) {
 462                 return g;
 463             }
 464         }
 465         throw new NotAGroupMemberException(groupId, g.name);
 466     }
 467
 468     public List<GroupInfo> getGroups() {
 469         return account.getGroupStore().getGroups();
 470     }
 471
 472     @Override
 473     public void sendGroupMessage(String messageText, List<String> attachments,
 474                                  byte[] groupId)
 475             throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 476         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 477         if (attachments != null) {
 478             messageBuilder.withAttachments(Utils.getSignalServiceAttachments(attachments));
 479         }
 480         if (groupId != null) {
 481             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 482                     .withId(groupId)
 483                     .build();
 484             messageBuilder.asGroupMessage(group);
 485         }
 486         ThreadInfo thread = account.getThreadStore().getThread(Base64.encodeBytes(groupId));
 487         if (thread != null) {
 488             messageBuilder.withExpiration(thread.messageExpirationTime);
 489         }
 490
 491         final GroupInfo g = getGroupForSending(groupId);
 492
 493         // Don't send group message to ourself
 494         final List<String> membersSend = new ArrayList<>(g.members);
 495         membersSend.remove(this.username);
 496         sendMessageLegacy(messageBuilder, membersSend);
 497     }
 498
 499     public void sendQuitGroupMessage(byte[] groupId) throws GroupNotFoundException, IOException, EncapsulatedExceptions {
 500         SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 501                 .withId(groupId)
 502                 .build();
 503
 504         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 505                 .asGroupMessage(group);
 506
 507         final GroupInfo g = getGroupForSending(groupId);
 508         g.members.remove(this.username);
 509         account.getGroupStore().updateGroup(g);
 510
 511         sendMessageLegacy(messageBuilder, g.members);
 512     }
 513
 514     private byte[] sendUpdateGroupMessage(byte[] groupId, String name, Collection<String> members, String avatarFile) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 515         GroupInfo g;
 516         if (groupId == null) {
 517             // Create new group
 518             g = new GroupInfo(KeyUtils.createGroupId());
 519             g.members.add(username);
 520         } else {
 521             g = getGroupForSending(groupId);
 522         }
 523
 524         if (name != null) {
 525             g.name = name;
 526         }
 527
 528         if (members != null) {
 529             Set<String> newMembers = new HashSet<>();
 530             for (String member : members) {
 531                 try {
 532                     member = Utils.canonicalizeNumber(member, username);
 533                 } catch (InvalidNumberException e) {
 534                     System.err.println("Failed to add member \"" + member + "\" to group: " + e.getMessage());
 535                     System.err.println("Aborting…");
 536                     System.exit(1);
 537                 }
 538                 if (g.members.contains(member)) {
 539                     continue;
 540                 }
 541                 newMembers.add(member);
 542                 g.members.add(member);
 543             }
 544             final List<ContactTokenDetails> contacts = accountManager.getContacts(newMembers);
 545             if (contacts.size() != newMembers.size()) {
 546                 // Some of the new members are not registered on Signal
 547                 for (ContactTokenDetails contact : contacts) {
 548                     newMembers.remove(contact.getNumber());
 549                 }
 550                 System.err.println("Failed to add members " + Util.join(", ", newMembers) + " to group: Not registered on Signal");
 551                 System.err.println("Aborting…");
 552                 System.exit(1);
 553             }
 554         }
 555
 556         if (avatarFile != null) {
 557             IOUtils.createPrivateDirectories(avatarsPath);
 558             File aFile = getGroupAvatarFile(g.groupId);
 559             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 560         }
 561
 562         account.getGroupStore().updateGroup(g);
 563
 564         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 565
 566         // Don't send group message to ourself
 567         final List<String> membersSend = new ArrayList<>(g.members);
 568         membersSend.remove(this.username);
 569         sendMessageLegacy(messageBuilder, membersSend);
 570         return g.groupId;
 571     }
 572
 573     private void sendUpdateGroupMessage(byte[] groupId, String recipient) throws IOException, EncapsulatedExceptions {
 574         if (groupId == null) {
 575             return;
 576         }
 577         GroupInfo g = getGroupForSending(groupId);
 578
 579         if (!g.members.contains(recipient)) {
 580             return;
 581         }
 582
 583         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 584
 585         // Send group message only to the recipient who requested it
 586         final List<String> membersSend = new ArrayList<>();
 587         membersSend.add(recipient);
 588         sendMessageLegacy(messageBuilder, membersSend);
 589     }
 590
 591     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfo g) {
 592         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 593                 .withId(g.groupId)
 594                 .withName(g.name)
 595                 .withMembers(new ArrayList<>(g.getMembers()));
 596
 597         File aFile = getGroupAvatarFile(g.groupId);
 598         if (aFile.exists()) {
 599             try {
 600                 group.withAvatar(Utils.createAttachment(aFile));
 601             } catch (IOException e) {
 602                 throw new AttachmentInvalidException(aFile.toString(), e);
 603             }
 604         }
 605
 606         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 607                 .asGroupMessage(group.build());
 608
 609         ThreadInfo thread = account.getThreadStore().getThread(Base64.encodeBytes(g.groupId));
 610         if (thread != null) {
 611             messageBuilder.withExpiration(thread.messageExpirationTime);
 612         }
 613
 614         return messageBuilder;
 615     }
 616
 617     private void sendGroupInfoRequest(byte[] groupId, String recipient) throws IOException, EncapsulatedExceptions {
 618         if (groupId == null) {
 619             return;
 620         }
 621
 622         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 623                 .withId(groupId);
 624
 625         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 626                 .asGroupMessage(group.build());
 627
 628         ThreadInfo thread = account.getThreadStore().getThread(Base64.encodeBytes(groupId));
 629         if (thread != null) {
 630             messageBuilder.withExpiration(thread.messageExpirationTime);
 631         }
 632
 633         // Send group info request message to the recipient who sent us a message with this groupId
 634         final List<String> membersSend = new ArrayList<>();
 635         membersSend.add(recipient);
 636         sendMessageLegacy(messageBuilder, membersSend);
 637     }
 638
 639     @Override
 640     public void sendMessage(String message, List<String> attachments, String recipient)
 641             throws EncapsulatedExceptions, AttachmentInvalidException, IOException {
 642         List<String> recipients = new ArrayList<>(1);
 643         recipients.add(recipient);
 644         sendMessage(message, attachments, recipients);
 645     }
 646
 647     @Override
 648     public void sendMessage(String messageText, List<String> attachments,
 649                             List<String> recipients)
 650             throws IOException, EncapsulatedExceptions, AttachmentInvalidException {
 651         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 652         if (attachments != null) {
 653             List<SignalServiceAttachment> attachmentStreams = Utils.getSignalServiceAttachments(attachments);
 654
 655             // Upload attachments here, so we only upload once even for multiple recipients
 656             SignalServiceMessageSender messageSender = getMessageSender();
 657             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 658             for (SignalServiceAttachment attachment : attachmentStreams) {
 659                 if (attachment.isStream()) {
 660                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 661                 } else if (attachment.isPointer()) {
 662                     attachmentPointers.add(attachment.asPointer());
 663                 }
 664             }
 665
 666             messageBuilder.withAttachments(attachmentPointers);
 667         }
 668         messageBuilder.withProfileKey(account.getProfileKey());
 669         sendMessageLegacy(messageBuilder, recipients);
 670     }
 671
 672     @Override
 673     public void sendEndSessionMessage(List<String> recipients) throws IOException, EncapsulatedExceptions {
 674         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 675                 .asEndSessionMessage();
 676
 677         sendMessageLegacy(messageBuilder, recipients);
 678     }
 679
 680     @Override
 681     public String getContactName(String number) throws InvalidNumberException {
 682         String canonicalizedNumber = Utils.canonicalizeNumber(number, username);
 683         ContactInfo contact = account.getContactStore().getContact(canonicalizedNumber);
 684         if (contact == null) {
 685             return "";
 686         } else {
 687             return contact.name;
 688         }
 689     }
 690
 691     @Override
 692     public void setContactName(String number, String name) throws InvalidNumberException {
 693         String canonicalizedNumber = Utils.canonicalizeNumber(number, username);
 694         ContactInfo contact = account.getContactStore().getContact(canonicalizedNumber);
 695         if (contact == null) {
 696             contact = new ContactInfo();
 697             contact.number = canonicalizedNumber;
 698             System.err.println("Add contact " + canonicalizedNumber + " named " + name);
 699         } else {
 700             System.err.println("Updating contact " + canonicalizedNumber + " name " + contact.name + " -> " + name);
 701         }
 702         contact.name = name;
 703         account.getContactStore().updateContact(contact);
 704         account.save();
 705     }
 706
 707     @Override
 708     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
 709         number = Utils.canonicalizeNumber(number, username);
 710         ContactInfo contact = account.getContactStore().getContact(number);
 711         if (contact == null) {
 712             contact = new ContactInfo();
 713             contact.number = number;
 714             System.err.println("Adding and " + (blocked ? "blocking" : "unblocking") + " contact " + number);
 715         } else {
 716             System.err.println((blocked ? "Blocking" : "Unblocking") + " contact " + number);
 717         }
 718         contact.blocked = blocked;
 719         account.getContactStore().updateContact(contact);
 720         account.save();
 721     }
 722
 723     @Override
 724     public void setGroupBlocked(final byte[] groupId, final boolean blocked) throws GroupNotFoundException {
 725         GroupInfo group = getGroup(groupId);
 726         if (group == null) {
 727             throw new GroupNotFoundException(groupId);
 728         } else {
 729             System.err.println((blocked ? "Blocking" : "Unblocking") + " group " + Base64.encodeBytes(groupId));
 730             group.blocked = blocked;
 731             account.getGroupStore().updateGroup(group);
 732             account.save();
 733         }
 734     }
 735
 736     @Override
 737     public List<byte[]> getGroupIds() {
 738         List<GroupInfo> groups = getGroups();
 739         List<byte[]> ids = new ArrayList<>(groups.size());
 740         for (GroupInfo group : groups) {
 741             ids.add(group.groupId);
 742         }
 743         return ids;
 744     }
 745
 746     @Override
 747     public String getGroupName(byte[] groupId) {
 748         GroupInfo group = getGroup(groupId);
 749         if (group == null) {
 750             return "";
 751         } else {
 752             return group.name;
 753         }
 754     }
 755
 756     @Override
 757     public List<String> getGroupMembers(byte[] groupId) {
 758         GroupInfo group = getGroup(groupId);
 759         if (group == null) {
 760             return new ArrayList<>();
 761         } else {
 762             return new ArrayList<>(group.members);
 763         }
 764     }
 765
 766     @Override
 767     public byte[] updateGroup(byte[] groupId, String name, List<String> members, String avatar) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 768         if (groupId.length == 0) {
 769             groupId = null;
 770         }
 771         if (name.isEmpty()) {
 772             name = null;
 773         }
 774         if (members.size() == 0) {
 775             members = null;
 776         }
 777         if (avatar.isEmpty()) {
 778             avatar = null;
 779         }
 780         return sendUpdateGroupMessage(groupId, name, members, avatar);
 781     }
 782
 783     /**
 784      * Change the expiration timer for a thread (number of groupId)
 785      *
 786      * @param numberOrGroupId
 787      * @param messageExpirationTimer
 788      */
 789     public void setExpirationTimer(String numberOrGroupId, int messageExpirationTimer) {
 790         ThreadInfo thread = account.getThreadStore().getThread(numberOrGroupId);
 791         thread.messageExpirationTime = messageExpirationTimer;
 792         account.getThreadStore().updateThread(thread);
 793     }
 794
 795     private void requestSyncGroups() throws IOException {
 796         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS).build();
 797         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 798         try {
 799             sendSyncMessage(message);
 800         } catch (UntrustedIdentityException e) {
 801             e.printStackTrace();
 802         }
 803     }
 804
 805     private void requestSyncContacts() throws IOException {
 806         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS).build();
 807         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 808         try {
 809             sendSyncMessage(message);
 810         } catch (UntrustedIdentityException e) {
 811             e.printStackTrace();
 812         }
 813     }
 814
 815     private void requestSyncBlocked() throws IOException {
 816         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED).build();
 817         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 818         try {
 819             sendSyncMessage(message);
 820         } catch (UntrustedIdentityException e) {
 821             e.printStackTrace();
 822         }
 823     }
 824
 825     private void requestSyncConfiguration() throws IOException {
 826         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION).build();
 827         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 828         try {
 829             sendSyncMessage(message);
 830         } catch (UntrustedIdentityException e) {
 831             e.printStackTrace();
 832         }
 833     }
 834
 835     private byte[] getSelfUnidentifiedAccessKey() {
 836         return UnidentifiedAccess.deriveAccessKeyFrom(account.getProfileKey());
 837     }
 838
 839     private byte[] getTargetUnidentifiedAccessKey(SignalServiceAddress recipient) {
 840         // TODO implement
 841         return null;
 842     }
 843
 844     private Optional<UnidentifiedAccessPair> getAccessForSync() {
 845         // TODO implement
 846         return Optional.absent();
 847     }
 848
 849     private List<Optional<UnidentifiedAccessPair>> getAccessFor(Collection<SignalServiceAddress> recipients) {
 850         List<Optional<UnidentifiedAccessPair>> result = new ArrayList<>(recipients.size());
 851         for (SignalServiceAddress recipient : recipients) {
 852             result.add(Optional.<UnidentifiedAccessPair>absent());
 853         }
 854         return result;
 855     }
 856
 857     private Optional<UnidentifiedAccessPair> getAccessFor(SignalServiceAddress recipient) {
 858         // TODO implement
 859         return Optional.absent();
 860     }
 861
 862     private void sendSyncMessage(SignalServiceSyncMessage message)
 863             throws IOException, UntrustedIdentityException {
 864         SignalServiceMessageSender messageSender = getMessageSender();
 865         try {
 866             messageSender.sendMessage(message, getAccessForSync());
 867         } catch (UntrustedIdentityException e) {
 868             account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
 869             throw e;
 870         }
 871     }
 872
 873     /**
 874      * This method throws an EncapsulatedExceptions exception instead of returning a list of SendMessageResult.
 875      */
 876     private void sendMessageLegacy(SignalServiceDataMessage.Builder messageBuilder, Collection<String> recipients)
 877             throws EncapsulatedExceptions, IOException {
 878         List<SendMessageResult> results = sendMessage(messageBuilder, recipients);
 879
 880         List<UntrustedIdentityException> untrustedIdentities = new LinkedList<>();
 881         List<UnregisteredUserException> unregisteredUsers = new LinkedList<>();
 882         List<NetworkFailureException> networkExceptions = new LinkedList<>();
 883
 884         for (SendMessageResult result : results) {
 885             if (result.isUnregisteredFailure()) {
 886                 unregisteredUsers.add(new UnregisteredUserException(result.getAddress().getNumber().get(), null));
 887             } else if (result.isNetworkFailure()) {
 888                 networkExceptions.add(new NetworkFailureException(result.getAddress().getNumber().get(), null));
 889             } else if (result.getIdentityFailure() != null) {
 890                 untrustedIdentities.add(new UntrustedIdentityException("Untrusted", result.getAddress().getNumber().get(), result.getIdentityFailure().getIdentityKey()));
 891             }
 892         }
 893         if (!untrustedIdentities.isEmpty() || !unregisteredUsers.isEmpty() || !networkExceptions.isEmpty()) {
 894             throw new EncapsulatedExceptions(untrustedIdentities, unregisteredUsers, networkExceptions);
 895         }
 896     }
 897
 898     private List<SendMessageResult> sendMessage(SignalServiceDataMessage.Builder messageBuilder, Collection<String> recipients)
 899             throws IOException {
 900         Set<SignalServiceAddress> recipientsTS = Utils.getSignalServiceAddresses(recipients, username);
 901         if (recipientsTS == null) {
 902             account.save();
 903             return Collections.emptyList();
 904         }
 905
 906         SignalServiceDataMessage message = null;
 907         try {
 908             SignalServiceMessageSender messageSender = getMessageSender();
 909
 910             message = messageBuilder.build();
 911             if (message.getGroupInfo().isPresent()) {
 912                 try {
 913                     final boolean isRecipientUpdate = false;
 914                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipientsTS), getAccessFor(recipientsTS), isRecipientUpdate, message);
 915                     for (SendMessageResult r : result) {
 916                         if (r.getIdentityFailure() != null) {
 917                             account.getSignalProtocolStore().saveIdentity(r.getAddress().getNumber().get(), r.getIdentityFailure().getIdentityKey(), TrustLevel.UNTRUSTED);
 918                         }
 919                     }
 920                     return result;
 921                 } catch (UntrustedIdentityException e) {
 922                     account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
 923                     return Collections.emptyList();
 924                 }
 925             } else if (recipientsTS.size() == 1 && recipientsTS.contains(getSelfAddress())) {
 926                 SignalServiceAddress recipient = getSelfAddress();
 927                 final Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
 928                 SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
 929                         message.getTimestamp(),
 930                         message,
 931                         message.getExpiresInSeconds(),
 932                         Collections.singletonMap(recipient, unidentifiedAccess.isPresent()),
 933                         false);
 934                 SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
 935
 936                 List<SendMessageResult> results = new ArrayList<>(recipientsTS.size());
 937                 try {
 938                     messageSender.sendMessage(syncMessage, unidentifiedAccess);
 939                 } catch (UntrustedIdentityException e) {
 940                     account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
 941                     results.add(SendMessageResult.identityFailure(recipient, e.getIdentityKey()));
 942                 }
 943                 return results;
 944             } else {
 945                 // Send to all individually, so sync messages are sent correctly
 946                 List<SendMessageResult> results = new ArrayList<>(recipientsTS.size());
 947                 for (SignalServiceAddress address : recipientsTS) {
 948                     ThreadInfo thread = account.getThreadStore().getThread(address.getNumber().get());
 949                     if (thread != null) {
 950                         messageBuilder.withExpiration(thread.messageExpirationTime);
 951                     } else {
 952                         messageBuilder.withExpiration(0);
 953                     }
 954                     message = messageBuilder.build();
 955                     try {
 956                         SendMessageResult result = messageSender.sendMessage(address, getAccessFor(address), message);
 957                         results.add(result);
 958                     } catch (UntrustedIdentityException e) {
 959                         account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
 960                         results.add(SendMessageResult.identityFailure(address, e.getIdentityKey()));
 961                     }
 962                 }
 963                 return results;
 964             }
 965         } finally {
 966             if (message != null && message.isEndSession()) {
 967                 for (SignalServiceAddress recipient : recipientsTS) {
 968                     handleEndSession(recipient.getNumber().get());
 969                 }
 970             }
 971             account.save();
 972         }
 973     }
 974
 975     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, ProtocolUntrustedIdentityException, SelfSendException, UnsupportedDataMessageException {
 976         SignalServiceCipher cipher = new SignalServiceCipher(getSelfAddress(), account.getSignalProtocolStore(), Utils.getCertificateValidator());
 977         try {
 978             return cipher.decrypt(envelope);
 979         } catch (ProtocolUntrustedIdentityException e) {
 980             // TODO We don't get the new untrusted identity from ProtocolUntrustedIdentityException anymore ... we need to get it from somewhere else
 981 //            account.getSignalProtocolStore().saveIdentity(e.getSender(), e.getUntrustedIdentity(), TrustLevel.UNTRUSTED);
 982             throw e;
 983         }
 984     }
 985
 986     private void handleEndSession(String source) {
 987         account.getSignalProtocolStore().deleteAllSessions(source);
 988     }
 989
 990     private void handleSignalServiceDataMessage(SignalServiceDataMessage message, boolean isSync, String source, SignalServiceAddress destination, boolean ignoreAttachments) {
 991         String threadId;
 992         if (message.getGroupInfo().isPresent()) {
 993             SignalServiceGroup groupInfo = message.getGroupInfo().get();
 994             threadId = Base64.encodeBytes(groupInfo.getGroupId());
 995             GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
 996             switch (groupInfo.getType()) {
 997                 case UPDATE:
 998                     if (group == null) {
 999                         group = new GroupInfo(groupInfo.getGroupId());
1000                     }
1001
1002                     if (groupInfo.getAvatar().isPresent()) {
1003                         SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1004                         if (avatar.isPointer()) {
1005                             try {
1006                                 retrieveGroupAvatarAttachment(avatar.asPointer(), group.groupId);
1007                             } catch (IOException | InvalidMessageException e) {
1008                                 System.err.println("Failed to retrieve group avatar (" + avatar.asPointer().getId() + "): " + e.getMessage());
1009                             }
1010                         }
1011                     }
1012
1013                     if (groupInfo.getName().isPresent()) {
1014                         group.name = groupInfo.getName().get();
1015                     }
1016
1017                     if (groupInfo.getMembers().isPresent()) {
1018                         group.addMembers(groupInfo.getMembers().get());
1019                     }
1020
1021                     account.getGroupStore().updateGroup(group);
1022                     break;
1023                 case DELIVER:
1024                     if (group == null) {
1025                         try {
1026                             sendGroupInfoRequest(groupInfo.getGroupId(), source);
1027                         } catch (IOException | EncapsulatedExceptions e) {
1028                             e.printStackTrace();
1029                         }
1030                     }
1031                     break;
1032                 case QUIT:
1033                     if (group == null) {
1034                         try {
1035                             sendGroupInfoRequest(groupInfo.getGroupId(), source);
1036                         } catch (IOException | EncapsulatedExceptions e) {
1037                             e.printStackTrace();
1038                         }
1039                     } else {
1040                         group.members.remove(source);
1041                         account.getGroupStore().updateGroup(group);
1042                     }
1043                     break;
1044                 case REQUEST_INFO:
1045                     if (group != null) {
1046                         try {
1047                             sendUpdateGroupMessage(groupInfo.getGroupId(), source);
1048                         } catch (IOException | EncapsulatedExceptions e) {
1049                             e.printStackTrace();
1050                         } catch (NotAGroupMemberException e) {
1051                             // We have left this group, so don't send a group update message
1052                         }
1053                     }
1054                     break;
1055             }
1056         } else {
1057             if (isSync) {
1058                 threadId = destination.getNumber().get();
1059             } else {
1060                 threadId = source;
1061             }
1062         }
1063         if (message.isEndSession()) {
1064             handleEndSession(isSync ? destination.getNumber().get() : source);
1065         }
1066         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1067             ThreadInfo thread = account.getThreadStore().getThread(threadId);
1068             if (thread == null) {
1069                 thread = new ThreadInfo();
1070                 thread.id = threadId;
1071             }
1072             if (thread.messageExpirationTime != message.getExpiresInSeconds()) {
1073                 thread.messageExpirationTime = message.getExpiresInSeconds();
1074                 account.getThreadStore().updateThread(thread);
1075             }
1076         }
1077         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1078             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1079                 if (attachment.isPointer()) {
1080                     try {
1081                         retrieveAttachment(attachment.asPointer());
1082                     } catch (IOException | InvalidMessageException e) {
1083                         System.err.println("Failed to retrieve attachment (" + attachment.asPointer().getId() + "): " + e.getMessage());
1084                     }
1085                 }
1086             }
1087         }
1088         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1089             if (source.equals(username)) {
1090                 this.account.setProfileKey(message.getProfileKey().get());
1091             }
1092             ContactInfo contact = account.getContactStore().getContact(source);
1093             if (contact == null) {
1094                 contact = new ContactInfo();
1095                 contact.number = source;
1096             }
1097             contact.profileKey = Base64.encodeBytes(message.getProfileKey().get());
1098         }
1099         if (message.getPreviews().isPresent()) {
1100             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1101             for (SignalServiceDataMessage.Preview preview : previews) {
1102                 if (preview.getImage().isPresent() && preview.getImage().get().isPointer()) {
1103                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
1104                     try {
1105                         retrieveAttachment(attachment);
1106                     } catch (IOException | InvalidMessageException e) {
1107                         System.err.println("Failed to retrieve attachment (" + attachment.getId() + "): " + e.getMessage());
1108                     }
1109                 }
1110             }
1111         }
1112     }
1113
1114     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1115         final File cachePath = new File(getMessageCachePath());
1116         if (!cachePath.exists()) {
1117             return;
1118         }
1119         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
1120             if (!dir.isDirectory()) {
1121                 continue;
1122             }
1123
1124             for (final File fileEntry : Objects.requireNonNull(dir.listFiles())) {
1125                 if (!fileEntry.isFile()) {
1126                     continue;
1127                 }
1128                 SignalServiceEnvelope envelope;
1129                 try {
1130                     envelope = Utils.loadEnvelope(fileEntry);
1131                     if (envelope == null) {
1132                         continue;
1133                     }
1134                 } catch (IOException e) {
1135                     e.printStackTrace();
1136                     continue;
1137                 }
1138                 SignalServiceContent content = null;
1139                 if (!envelope.isReceipt()) {
1140                     try {
1141                         content = decryptMessage(envelope);
1142                     } catch (Exception e) {
1143                         continue;
1144                     }
1145                     handleMessage(envelope, content, ignoreAttachments);
1146                 }
1147                 account.save();
1148                 handler.handleMessage(envelope, content, null);
1149                 try {
1150                     Files.delete(fileEntry.toPath());
1151                 } catch (IOException e) {
1152                     System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1153                 }
1154             }
1155             // Try to delete directory if empty
1156             dir.delete();
1157         }
1158     }
1159
1160     public void receiveMessages(long timeout, TimeUnit unit, boolean returnOnTimeout, boolean ignoreAttachments, ReceiveMessageHandler handler) throws IOException {
1161         retryFailedReceivedMessages(handler, ignoreAttachments);
1162         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1163
1164         try {
1165             if (messagePipe == null) {
1166                 messagePipe = messageReceiver.createMessagePipe();
1167             }
1168
1169             while (true) {
1170                 SignalServiceEnvelope envelope;
1171                 SignalServiceContent content = null;
1172                 Exception exception = null;
1173                 final long now = new Date().getTime();
1174                 try {
1175                     envelope = messagePipe.read(timeout, unit, new SignalServiceMessagePipe.MessagePipeCallback() {
1176                         @Override
1177                         public void onMessage(SignalServiceEnvelope envelope) {
1178                             // store message on disk, before acknowledging receipt to the server
1179                             try {
1180                                 File cacheFile = getMessageCacheFile(envelope.getSourceE164().get(), now, envelope.getTimestamp());
1181                                 Utils.storeEnvelope(envelope, cacheFile);
1182                             } catch (IOException e) {
1183                                 System.err.println("Failed to store encrypted message in disk cache, ignoring: " + e.getMessage());
1184                             }
1185                         }
1186                     });
1187                 } catch (TimeoutException e) {
1188                     if (returnOnTimeout)
1189                         return;
1190                     continue;
1191                 } catch (InvalidVersionException e) {
1192                     System.err.println("Ignoring error: " + e.getMessage());
1193                     continue;
1194                 }
1195                 if (!envelope.isReceipt()) {
1196                     try {
1197                         content = decryptMessage(envelope);
1198                     } catch (Exception e) {
1199                         exception = e;
1200                     }
1201                     handleMessage(envelope, content, ignoreAttachments);
1202                 }
1203                 account.save();
1204                 if (!isMessageBlocked(envelope, content)) {
1205                     handler.handleMessage(envelope, content, exception);
1206                 }
1207                 if (!(exception instanceof ProtocolUntrustedIdentityException)) {
1208                     File cacheFile = null;
1209                     try {
1210                         cacheFile = getMessageCacheFile(envelope.getSourceE164().get(), now, envelope.getTimestamp());
1211                         Files.delete(cacheFile.toPath());
1212                         // Try to delete directory if empty
1213                         new File(getMessageCachePath()).delete();
1214                     } catch (IOException e) {
1215                         System.err.println("Failed to delete cached message file “" + cacheFile + "”: " + e.getMessage());
1216                     }
1217                 }
1218             }
1219         } finally {
1220             if (messagePipe != null) {
1221                 messagePipe.shutdown();
1222                 messagePipe = null;
1223             }
1224         }
1225     }
1226
1227     private boolean isMessageBlocked(SignalServiceEnvelope envelope, SignalServiceContent content) {
1228         SignalServiceAddress source;
1229         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1230             source = envelope.getSourceAddress();
1231         } else if (content != null) {
1232             source = content.getSender();
1233         } else {
1234             return false;
1235         }
1236         ContactInfo sourceContact = getContact(source.getNumber().get());
1237         if (sourceContact != null && sourceContact.blocked) {
1238             return true;
1239         }
1240
1241         if (content != null && content.getDataMessage().isPresent()) {
1242             SignalServiceDataMessage message = content.getDataMessage().get();
1243             if (message.getGroupInfo().isPresent()) {
1244                 SignalServiceGroup groupInfo = message.getGroupInfo().get();
1245                 GroupInfo group = getGroup(groupInfo.getGroupId());
1246                 if (groupInfo.getType() == SignalServiceGroup.Type.DELIVER && group != null && group.blocked) {
1247                     return true;
1248                 }
1249             }
1250         }
1251         return false;
1252     }
1253
1254     private void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments) {
1255         if (content != null) {
1256             SignalServiceAddress sender;
1257             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1258                 sender = envelope.getSourceAddress();
1259             } else {
1260                 sender = content.getSender();
1261             }
1262             if (content.getDataMessage().isPresent()) {
1263                 SignalServiceDataMessage message = content.getDataMessage().get();
1264                 handleSignalServiceDataMessage(message, false, sender.getNumber().get(), getSelfAddress(), ignoreAttachments);
1265             }
1266             if (content.getSyncMessage().isPresent()) {
1267                 account.setMultiDevice(true);
1268                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1269                 if (syncMessage.getSent().isPresent()) {
1270                     SentTranscriptMessage message = syncMessage.getSent().get();
1271                     handleSignalServiceDataMessage(message.getMessage(), true, sender.getNumber().get(), message.getDestination().orNull(), ignoreAttachments);
1272                 }
1273                 if (syncMessage.getRequest().isPresent()) {
1274                     RequestMessage rm = syncMessage.getRequest().get();
1275                     if (rm.isContactsRequest()) {
1276                         try {
1277                             sendContacts();
1278                         } catch (UntrustedIdentityException | IOException e) {
1279                             e.printStackTrace();
1280                         }
1281                     }
1282                     if (rm.isGroupsRequest()) {
1283                         try {
1284                             sendGroups();
1285                         } catch (UntrustedIdentityException | IOException e) {
1286                             e.printStackTrace();
1287                         }
1288                     }
1289                     if (rm.isBlockedListRequest()) {
1290                         try {
1291                             sendBlockedList();
1292                         } catch (UntrustedIdentityException | IOException e) {
1293                             e.printStackTrace();
1294                         }
1295                     }
1296                     // TODO Handle rm.isConfigurationRequest();
1297                 }
1298                 if (syncMessage.getGroups().isPresent()) {
1299                     File tmpFile = null;
1300                     try {
1301                         tmpFile = IOUtils.createTempFile();
1302                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups().get().asPointer(), tmpFile)) {
1303                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1304                             DeviceGroup g;
1305                             while ((g = s.read()) != null) {
1306                                 GroupInfo syncGroup = account.getGroupStore().getGroup(g.getId());
1307                                 if (syncGroup == null) {
1308                                     syncGroup = new GroupInfo(g.getId());
1309                                 }
1310                                 if (g.getName().isPresent()) {
1311                                     syncGroup.name = g.getName().get();
1312                                 }
1313                                 syncGroup.addMembers(g.getMembers());
1314                                 syncGroup.active = g.isActive();
1315                                 syncGroup.blocked = g.isBlocked();
1316                                 if (g.getColor().isPresent()) {
1317                                     syncGroup.color = g.getColor().get();
1318                                 }
1319
1320                                 if (g.getAvatar().isPresent()) {
1321                                     retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId);
1322                                 }
1323                                 syncGroup.inboxPosition = g.getInboxPosition().orNull();
1324                                 syncGroup.archived = g.isArchived();
1325                                 account.getGroupStore().updateGroup(syncGroup);
1326                             }
1327                         }
1328                     } catch (Exception e) {
1329                         e.printStackTrace();
1330                     } finally {
1331                         if (tmpFile != null) {
1332                             try {
1333                                 Files.delete(tmpFile.toPath());
1334                             } catch (IOException e) {
1335                                 System.err.println("Failed to delete received groups temp file “" + tmpFile + "”: " + e.getMessage());
1336                             }
1337                         }
1338                     }
1339                 }
1340                 if (syncMessage.getBlockedList().isPresent()) {
1341                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1342                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1343                         if (address.getNumber().isPresent()) {
1344                             try {
1345                                 setContactBlocked(address.getNumber().get(), true);
1346                             } catch (InvalidNumberException e) {
1347                                 e.printStackTrace();
1348                             }
1349                         }
1350                     }
1351                     for (byte[] groupId : blockedListMessage.getGroupIds()) {
1352                         try {
1353                             setGroupBlocked(groupId, true);
1354                         } catch (GroupNotFoundException e) {
1355                             System.err.println("BlockedListMessage contained groupID that was not found in GroupStore: " + Base64.encodeBytes(groupId));
1356                         }
1357                     }
1358                 }
1359                 if (syncMessage.getContacts().isPresent()) {
1360                     File tmpFile = null;
1361                     try {
1362                         tmpFile = IOUtils.createTempFile();
1363                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1364                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream().asPointer(), tmpFile)) {
1365                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1366                             if (contactsMessage.isComplete()) {
1367                                 account.getContactStore().clear();
1368                             }
1369                             DeviceContact c;
1370                             while ((c = s.read()) != null) {
1371                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
1372                                     account.setProfileKey(c.getProfileKey().get());
1373                                 }
1374                                 ContactInfo contact = account.getContactStore().getContact(c.getAddress().getNumber().get());
1375                                 if (contact == null) {
1376                                     contact = new ContactInfo();
1377                                     contact.number = c.getAddress().getNumber().get();
1378                                 }
1379                                 if (c.getName().isPresent()) {
1380                                     contact.name = c.getName().get();
1381                                 }
1382                                 if (c.getColor().isPresent()) {
1383                                     contact.color = c.getColor().get();
1384                                 }
1385                                 if (c.getProfileKey().isPresent()) {
1386                                     contact.profileKey = Base64.encodeBytes(c.getProfileKey().get());
1387                                 }
1388                                 if (c.getVerified().isPresent()) {
1389                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
1390                                     account.getSignalProtocolStore().saveIdentity(verifiedMessage.getDestination().getNumber().get(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1391                                 }
1392                                 if (c.getExpirationTimer().isPresent()) {
1393                                     ThreadInfo thread = account.getThreadStore().getThread(c.getAddress().getNumber().get());
1394                                     if (thread == null) {
1395                                         thread = new ThreadInfo();
1396                                         thread.id = c.getAddress().getNumber().get();
1397                                     }
1398                                     thread.messageExpirationTime = c.getExpirationTimer().get();
1399                                     account.getThreadStore().updateThread(thread);
1400                                 }
1401                                 contact.blocked = c.isBlocked();
1402                                 contact.inboxPosition = c.getInboxPosition().orNull();
1403                                 contact.archived = c.isArchived();
1404                                 account.getContactStore().updateContact(contact);
1405
1406                                 if (c.getAvatar().isPresent()) {
1407                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
1408                                 }
1409                             }
1410                         }
1411                     } catch (Exception e) {
1412                         e.printStackTrace();
1413                     } finally {
1414                         if (tmpFile != null) {
1415                             try {
1416                                 Files.delete(tmpFile.toPath());
1417                             } catch (IOException e) {
1418                                 System.err.println("Failed to delete received contacts temp file “" + tmpFile + "”: " + e.getMessage());
1419                             }
1420                         }
1421                     }
1422                 }
1423                 if (syncMessage.getVerified().isPresent()) {
1424                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
1425                     account.getSignalProtocolStore().saveIdentity(verifiedMessage.getDestination().getNumber().get(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1426                 }
1427                 if (syncMessage.getConfiguration().isPresent()) {
1428                     // TODO
1429                 }
1430             }
1431         }
1432     }
1433
1434     private File getContactAvatarFile(String number) {
1435         return new File(avatarsPath, "contact-" + number);
1436     }
1437
1438     private File retrieveContactAvatarAttachment(SignalServiceAttachment attachment, String number) throws IOException, InvalidMessageException {
1439         IOUtils.createPrivateDirectories(avatarsPath);
1440         if (attachment.isPointer()) {
1441             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1442             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
1443         } else {
1444             SignalServiceAttachmentStream stream = attachment.asStream();
1445             return Utils.retrieveAttachment(stream, getContactAvatarFile(number));
1446         }
1447     }
1448
1449     private File getGroupAvatarFile(byte[] groupId) {
1450         return new File(avatarsPath, "group-" + Base64.encodeBytes(groupId).replace("/", "_"));
1451     }
1452
1453     private File retrieveGroupAvatarAttachment(SignalServiceAttachment attachment, byte[] groupId) throws IOException, InvalidMessageException {
1454         IOUtils.createPrivateDirectories(avatarsPath);
1455         if (attachment.isPointer()) {
1456             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1457             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
1458         } else {
1459             SignalServiceAttachmentStream stream = attachment.asStream();
1460             return Utils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
1461         }
1462     }
1463
1464     public File getAttachmentFile(long attachmentId) {
1465         return new File(attachmentsPath, attachmentId + "");
1466     }
1467
1468     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException {
1469         IOUtils.createPrivateDirectories(attachmentsPath);
1470         return retrieveAttachment(pointer, getAttachmentFile(pointer.getId()), true);
1471     }
1472
1473     private File retrieveAttachment(SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview) throws IOException, InvalidMessageException {
1474         if (storePreview && pointer.getPreview().isPresent()) {
1475             File previewFile = new File(outputFile + ".preview");
1476             try (OutputStream output = new FileOutputStream(previewFile)) {
1477                 byte[] preview = pointer.getPreview().get();
1478                 output.write(preview, 0, preview.length);
1479             } catch (FileNotFoundException e) {
1480                 e.printStackTrace();
1481                 return null;
1482             }
1483         }
1484
1485         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1486
1487         File tmpFile = IOUtils.createTempFile();
1488         try (InputStream input = messageReceiver.retrieveAttachment(pointer, tmpFile, BaseConfig.MAX_ATTACHMENT_SIZE)) {
1489             try (OutputStream output = new FileOutputStream(outputFile)) {
1490                 byte[] buffer = new byte[4096];
1491                 int read;
1492
1493                 while ((read = input.read(buffer)) != -1) {
1494                     output.write(buffer, 0, read);
1495                 }
1496             } catch (FileNotFoundException e) {
1497                 e.printStackTrace();
1498                 return null;
1499             }
1500         } finally {
1501             try {
1502                 Files.delete(tmpFile.toPath());
1503             } catch (IOException e) {
1504                 System.err.println("Failed to delete received attachment temp file “" + tmpFile + "”: " + e.getMessage());
1505             }
1506         }
1507         return outputFile;
1508     }
1509
1510     private InputStream retrieveAttachmentAsStream(SignalServiceAttachmentPointer pointer, File tmpFile) throws IOException, InvalidMessageException {
1511         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1512         return messageReceiver.retrieveAttachment(pointer, tmpFile, BaseConfig.MAX_ATTACHMENT_SIZE);
1513     }
1514
1515     @Override
1516     public boolean isRemote() {
1517         return false;
1518     }
1519
1520     private void sendGroups() throws IOException, UntrustedIdentityException {
1521         File groupsFile = IOUtils.createTempFile();
1522
1523         try {
1524             try (OutputStream fos = new FileOutputStream(groupsFile)) {
1525                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
1526                 for (GroupInfo record : account.getGroupStore().getGroups()) {
1527                     ThreadInfo info = account.getThreadStore().getThread(Base64.encodeBytes(record.groupId));
1528                     out.write(new DeviceGroup(record.groupId, Optional.fromNullable(record.name),
1529                             new ArrayList<>(record.getMembers()), createGroupAvatarAttachment(record.groupId),
1530                             record.active, Optional.fromNullable(info != null ? info.messageExpirationTime : null),
1531                             Optional.fromNullable(record.color), record.blocked, Optional.fromNullable(record.inboxPosition), record.archived));
1532                 }
1533             }
1534
1535             if (groupsFile.exists() && groupsFile.length() > 0) {
1536                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
1537                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1538                             .withStream(groupsFileStream)
1539                             .withContentType("application/octet-stream")
1540                             .withLength(groupsFile.length())
1541                             .build();
1542
1543                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
1544                 }
1545             }
1546         } finally {
1547             try {
1548                 Files.delete(groupsFile.toPath());
1549             } catch (IOException e) {
1550                 System.err.println("Failed to delete groups temp file “" + groupsFile + "”: " + e.getMessage());
1551             }
1552         }
1553     }
1554
1555     public void sendContacts() throws IOException, UntrustedIdentityException {
1556         File contactsFile = IOUtils.createTempFile();
1557
1558         try {
1559             try (OutputStream fos = new FileOutputStream(contactsFile)) {
1560                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
1561                 for (ContactInfo record : account.getContactStore().getContacts()) {
1562                     VerifiedMessage verifiedMessage = null;
1563                     ThreadInfo info = account.getThreadStore().getThread(record.number);
1564                     if (getIdentities().containsKey(record.number)) {
1565                         JsonIdentityKeyStore.Identity currentIdentity = null;
1566                         for (JsonIdentityKeyStore.Identity id : getIdentities().get(record.number)) {
1567                             if (currentIdentity == null || id.getDateAdded().after(currentIdentity.getDateAdded())) {
1568                                 currentIdentity = id;
1569                             }
1570                         }
1571                         if (currentIdentity != null) {
1572                             verifiedMessage = new VerifiedMessage(record.getAddress(), currentIdentity.getIdentityKey(), currentIdentity.getTrustLevel().toVerifiedState(), currentIdentity.getDateAdded().getTime());
1573                         }
1574                     }
1575
1576                     byte[] profileKey = record.profileKey == null ? null : Base64.decode(record.profileKey);
1577                     out.write(new DeviceContact(record.getAddress(), Optional.fromNullable(record.name),
1578                             createContactAvatarAttachment(record.number), Optional.fromNullable(record.color),
1579                             Optional.fromNullable(verifiedMessage), Optional.fromNullable(profileKey), record.blocked,
1580                             Optional.fromNullable(info != null ? info.messageExpirationTime : null),
1581                             Optional.fromNullable(record.inboxPosition), record.archived));
1582                 }
1583
1584                 if (account.getProfileKey() != null) {
1585                     // Send our own profile key as well
1586                     out.write(new DeviceContact(account.getSelfAddress(),
1587                             Optional.<String>absent(), Optional.<SignalServiceAttachmentStream>absent(),
1588                             Optional.<String>absent(), Optional.<VerifiedMessage>absent(),
1589                             Optional.of(account.getProfileKey()),
1590                             false, Optional.<Integer>absent(), Optional.<Integer>absent(), false));
1591                 }
1592             }
1593
1594             if (contactsFile.exists() && contactsFile.length() > 0) {
1595                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
1596                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1597                             .withStream(contactsFileStream)
1598                             .withContentType("application/octet-stream")
1599                             .withLength(contactsFile.length())
1600                             .build();
1601
1602                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
1603                 }
1604             }
1605         } finally {
1606             try {
1607                 Files.delete(contactsFile.toPath());
1608             } catch (IOException e) {
1609                 System.err.println("Failed to delete contacts temp file “" + contactsFile + "”: " + e.getMessage());
1610             }
1611         }
1612     }
1613
1614     private void sendBlockedList() throws IOException, UntrustedIdentityException {
1615         List<SignalServiceAddress> addresses = new ArrayList<>();
1616         for (ContactInfo record : account.getContactStore().getContacts()) {
1617             if (record.blocked) {
1618                 addresses.add(record.getAddress());
1619             }
1620         }
1621         List<byte[]> groupIds = new ArrayList<>();
1622         for (GroupInfo record : account.getGroupStore().getGroups()) {
1623             if (record.blocked) {
1624                 groupIds.add(record.groupId);
1625             }
1626         }
1627         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
1628     }
1629
1630     private void sendVerifiedMessage(SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel) throws IOException, UntrustedIdentityException {
1631         VerifiedMessage verifiedMessage = new VerifiedMessage(destination, identityKey, trustLevel.toVerifiedState(), System.currentTimeMillis());
1632         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
1633     }
1634
1635     public List<ContactInfo> getContacts() {
1636         return account.getContactStore().getContacts();
1637     }
1638
1639     public ContactInfo getContact(String number) {
1640         return account.getContactStore().getContact(number);
1641     }
1642
1643     public GroupInfo getGroup(byte[] groupId) {
1644         return account.getGroupStore().getGroup(groupId);
1645     }
1646
1647     public Map<String, List<JsonIdentityKeyStore.Identity>> getIdentities() {
1648         return account.getSignalProtocolStore().getIdentities();
1649     }
1650
1651     public Pair<String, List<JsonIdentityKeyStore.Identity>> getIdentities(String number) throws InvalidNumberException {
1652         String canonicalizedNumber = Utils.canonicalizeNumber(number, username);
1653         return new Pair<>(canonicalizedNumber, account.getSignalProtocolStore().getIdentities(canonicalizedNumber));
1654     }
1655
1656     /**
1657      * Trust this the identity with this fingerprint
1658      *
1659      * @param name        username of the identity
1660      * @param fingerprint Fingerprint
1661      */
1662     public boolean trustIdentityVerified(String name, byte[] fingerprint) {
1663         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(name);
1664         if (ids == null) {
1665             return false;
1666         }
1667         for (JsonIdentityKeyStore.Identity id : ids) {
1668             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
1669                 continue;
1670             }
1671
1672             account.getSignalProtocolStore().saveIdentity(name, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1673             try {
1674                 sendVerifiedMessage(new SignalServiceAddress(null, name), id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1675             } catch (IOException | UntrustedIdentityException e) {
1676                 e.printStackTrace();
1677             }
1678             account.save();
1679             return true;
1680         }
1681         return false;
1682     }
1683
1684     /**
1685      * Trust this the identity with this safety number
1686      *
1687      * @param name         username of the identity
1688      * @param safetyNumber Safety number
1689      */
1690     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) {
1691         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(name);
1692         if (ids == null) {
1693             return false;
1694         }
1695         for (JsonIdentityKeyStore.Identity id : ids) {
1696             if (!safetyNumber.equals(computeSafetyNumber(name, id.getIdentityKey()))) {
1697                 continue;
1698             }
1699
1700             account.getSignalProtocolStore().saveIdentity(name, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1701             try {
1702                 sendVerifiedMessage(new SignalServiceAddress(null, name), id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1703             } catch (IOException | UntrustedIdentityException e) {
1704                 e.printStackTrace();
1705             }
1706             account.save();
1707             return true;
1708         }
1709         return false;
1710     }
1711
1712     /**
1713      * Trust all keys of this identity without verification
1714      *
1715      * @param name username of the identity
1716      */
1717     public boolean trustIdentityAllKeys(String name) {
1718         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(name);
1719         if (ids == null) {
1720             return false;
1721         }
1722         for (JsonIdentityKeyStore.Identity id : ids) {
1723             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
1724                 account.getSignalProtocolStore().saveIdentity(name, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
1725                 try {
1726                     sendVerifiedMessage(new SignalServiceAddress(null, name), id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
1727                 } catch (IOException | UntrustedIdentityException e) {
1728                     e.printStackTrace();
1729                 }
1730             }
1731         }
1732         account.save();
1733         return true;
1734     }
1735
1736     public String computeSafetyNumber(String theirUsername, IdentityKey theirIdentityKey) {
1737         return Utils.computeSafetyNumber(username, getIdentity(), theirUsername, theirIdentityKey);
1738     }
1739
1740     public interface ReceiveMessageHandler {
1741
1742         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
1743     }
1744 }