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 sendGroupMessageReaction(String emoji, boolean remove, SignalServiceAddress targetAuthor,
 500                                          long targetSentTimestamp, byte[] groupId)
 501             throws IOException, EncapsulatedExceptions, AttachmentInvalidException {
 502         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, targetAuthor, targetSentTimestamp);
 503         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 504                 .withReaction(reaction)
 505                 .withProfileKey(account.getProfileKey());
 506         if (groupId != null) {
 507             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 508                     .withId(groupId)
 509                     .build();
 510             messageBuilder.asGroupMessage(group);
 511         }
 512         final GroupInfo g = getGroupForSending(groupId);
 513         // Don't send group message to ourself
 514         final List<String> membersSend = new ArrayList<>(g.members);
 515         membersSend.remove(this.username);
 516         sendMessageLegacy(messageBuilder, membersSend);
 517     }
 518
 519     public void sendQuitGroupMessage(byte[] groupId) throws GroupNotFoundException, IOException, EncapsulatedExceptions {
 520         SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 521                 .withId(groupId)
 522                 .build();
 523
 524         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 525                 .asGroupMessage(group);
 526
 527         final GroupInfo g = getGroupForSending(groupId);
 528         g.members.remove(this.username);
 529         account.getGroupStore().updateGroup(g);
 530
 531         sendMessageLegacy(messageBuilder, g.members);
 532     }
 533
 534     private byte[] sendUpdateGroupMessage(byte[] groupId, String name, Collection<String> members, String avatarFile) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 535         GroupInfo g;
 536         if (groupId == null) {
 537             // Create new group
 538             g = new GroupInfo(KeyUtils.createGroupId());
 539             g.members.add(username);
 540         } else {
 541             g = getGroupForSending(groupId);
 542         }
 543
 544         if (name != null) {
 545             g.name = name;
 546         }
 547
 548         if (members != null) {
 549             Set<String> newMembers = new HashSet<>();
 550             for (String member : members) {
 551                 try {
 552                     member = Utils.canonicalizeNumber(member, username);
 553                 } catch (InvalidNumberException e) {
 554                     System.err.println("Failed to add member \"" + member + "\" to group: " + e.getMessage());
 555                     System.err.println("Aborting…");
 556                     System.exit(1);
 557                 }
 558                 if (g.members.contains(member)) {
 559                     continue;
 560                 }
 561                 newMembers.add(member);
 562                 g.members.add(member);
 563             }
 564             final List<ContactTokenDetails> contacts = accountManager.getContacts(newMembers);
 565             if (contacts.size() != newMembers.size()) {
 566                 // Some of the new members are not registered on Signal
 567                 for (ContactTokenDetails contact : contacts) {
 568                     newMembers.remove(contact.getNumber());
 569                 }
 570                 System.err.println("Failed to add members " + Util.join(", ", newMembers) + " to group: Not registered on Signal");
 571                 System.err.println("Aborting…");
 572                 System.exit(1);
 573             }
 574         }
 575
 576         if (avatarFile != null) {
 577             IOUtils.createPrivateDirectories(avatarsPath);
 578             File aFile = getGroupAvatarFile(g.groupId);
 579             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 580         }
 581
 582         account.getGroupStore().updateGroup(g);
 583
 584         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 585
 586         // Don't send group message to ourself
 587         final List<String> membersSend = new ArrayList<>(g.members);
 588         membersSend.remove(this.username);
 589         sendMessageLegacy(messageBuilder, membersSend);
 590         return g.groupId;
 591     }
 592
 593     private void sendUpdateGroupMessage(byte[] groupId, String recipient) throws IOException, EncapsulatedExceptions {
 594         if (groupId == null) {
 595             return;
 596         }
 597         GroupInfo g = getGroupForSending(groupId);
 598
 599         if (!g.members.contains(recipient)) {
 600             return;
 601         }
 602
 603         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 604
 605         // Send group message only to the recipient who requested it
 606         final List<String> membersSend = new ArrayList<>();
 607         membersSend.add(recipient);
 608         sendMessageLegacy(messageBuilder, membersSend);
 609     }
 610
 611     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfo g) {
 612         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 613                 .withId(g.groupId)
 614                 .withName(g.name)
 615                 .withMembers(new ArrayList<>(g.getMembers()));
 616
 617         File aFile = getGroupAvatarFile(g.groupId);
 618         if (aFile.exists()) {
 619             try {
 620                 group.withAvatar(Utils.createAttachment(aFile));
 621             } catch (IOException e) {
 622                 throw new AttachmentInvalidException(aFile.toString(), e);
 623             }
 624         }
 625
 626         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 627                 .asGroupMessage(group.build());
 628
 629         ThreadInfo thread = account.getThreadStore().getThread(Base64.encodeBytes(g.groupId));
 630         if (thread != null) {
 631             messageBuilder.withExpiration(thread.messageExpirationTime);
 632         }
 633
 634         return messageBuilder;
 635     }
 636
 637     private void sendGroupInfoRequest(byte[] groupId, String recipient) throws IOException, EncapsulatedExceptions {
 638         if (groupId == null) {
 639             return;
 640         }
 641
 642         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 643                 .withId(groupId);
 644
 645         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 646                 .asGroupMessage(group.build());
 647
 648         ThreadInfo thread = account.getThreadStore().getThread(Base64.encodeBytes(groupId));
 649         if (thread != null) {
 650             messageBuilder.withExpiration(thread.messageExpirationTime);
 651         }
 652
 653         // Send group info request message to the recipient who sent us a message with this groupId
 654         final List<String> membersSend = new ArrayList<>();
 655         membersSend.add(recipient);
 656         sendMessageLegacy(messageBuilder, membersSend);
 657     }
 658
 659     @Override
 660     public void sendMessage(String message, List<String> attachments, String recipient)
 661             throws EncapsulatedExceptions, AttachmentInvalidException, IOException {
 662         List<String> recipients = new ArrayList<>(1);
 663         recipients.add(recipient);
 664         sendMessage(message, attachments, recipients);
 665     }
 666
 667     @Override
 668     public void sendMessage(String messageText, List<String> attachments,
 669                             List<String> recipients)
 670             throws IOException, EncapsulatedExceptions, AttachmentInvalidException {
 671         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 672         if (attachments != null) {
 673             List<SignalServiceAttachment> attachmentStreams = Utils.getSignalServiceAttachments(attachments);
 674
 675             // Upload attachments here, so we only upload once even for multiple recipients
 676             SignalServiceMessageSender messageSender = getMessageSender();
 677             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 678             for (SignalServiceAttachment attachment : attachmentStreams) {
 679                 if (attachment.isStream()) {
 680                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 681                 } else if (attachment.isPointer()) {
 682                     attachmentPointers.add(attachment.asPointer());
 683                 }
 684             }
 685
 686             messageBuilder.withAttachments(attachmentPointers);
 687         }
 688         messageBuilder.withProfileKey(account.getProfileKey());
 689         sendMessageLegacy(messageBuilder, recipients);
 690     }
 691
 692     public void sendMessageReaction(String emoji, boolean remove, SignalServiceAddress targetAuthor,
 693                                     long targetSentTimestamp, List<String> recipients)
 694             throws IOException, EncapsulatedExceptions, AttachmentInvalidException {
 695         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, targetAuthor, targetSentTimestamp);
 696         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 697                 .withReaction(reaction)
 698                 .withProfileKey(account.getProfileKey());
 699         sendMessageLegacy(messageBuilder, recipients);
 700     }
 701
 702     @Override
 703     public void sendEndSessionMessage(List<String> recipients) throws IOException, EncapsulatedExceptions {
 704         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 705                 .asEndSessionMessage();
 706
 707         sendMessageLegacy(messageBuilder, recipients);
 708     }
 709
 710     @Override
 711     public String getContactName(String number) throws InvalidNumberException {
 712         String canonicalizedNumber = Utils.canonicalizeNumber(number, username);
 713         ContactInfo contact = account.getContactStore().getContact(canonicalizedNumber);
 714         if (contact == null) {
 715             return "";
 716         } else {
 717             return contact.name;
 718         }
 719     }
 720
 721     @Override
 722     public void setContactName(String number, String name) throws InvalidNumberException {
 723         String canonicalizedNumber = Utils.canonicalizeNumber(number, username);
 724         ContactInfo contact = account.getContactStore().getContact(canonicalizedNumber);
 725         if (contact == null) {
 726             contact = new ContactInfo();
 727             contact.number = canonicalizedNumber;
 728             System.err.println("Add contact " + canonicalizedNumber + " named " + name);
 729         } else {
 730             System.err.println("Updating contact " + canonicalizedNumber + " name " + contact.name + " -> " + name);
 731         }
 732         contact.name = name;
 733         account.getContactStore().updateContact(contact);
 734         account.save();
 735     }
 736
 737     @Override
 738     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
 739         number = Utils.canonicalizeNumber(number, username);
 740         ContactInfo contact = account.getContactStore().getContact(number);
 741         if (contact == null) {
 742             contact = new ContactInfo();
 743             contact.number = number;
 744             System.err.println("Adding and " + (blocked ? "blocking" : "unblocking") + " contact " + number);
 745         } else {
 746             System.err.println((blocked ? "Blocking" : "Unblocking") + " contact " + number);
 747         }
 748         contact.blocked = blocked;
 749         account.getContactStore().updateContact(contact);
 750         account.save();
 751     }
 752
 753     @Override
 754     public void setGroupBlocked(final byte[] groupId, final boolean blocked) throws GroupNotFoundException {
 755         GroupInfo group = getGroup(groupId);
 756         if (group == null) {
 757             throw new GroupNotFoundException(groupId);
 758         } else {
 759             System.err.println((blocked ? "Blocking" : "Unblocking") + " group " + Base64.encodeBytes(groupId));
 760             group.blocked = blocked;
 761             account.getGroupStore().updateGroup(group);
 762             account.save();
 763         }
 764     }
 765
 766     @Override
 767     public List<byte[]> getGroupIds() {
 768         List<GroupInfo> groups = getGroups();
 769         List<byte[]> ids = new ArrayList<>(groups.size());
 770         for (GroupInfo group : groups) {
 771             ids.add(group.groupId);
 772         }
 773         return ids;
 774     }
 775
 776     @Override
 777     public String getGroupName(byte[] groupId) {
 778         GroupInfo group = getGroup(groupId);
 779         if (group == null) {
 780             return "";
 781         } else {
 782             return group.name;
 783         }
 784     }
 785
 786     @Override
 787     public List<String> getGroupMembers(byte[] groupId) {
 788         GroupInfo group = getGroup(groupId);
 789         if (group == null) {
 790             return new ArrayList<>();
 791         } else {
 792             return new ArrayList<>(group.members);
 793         }
 794     }
 795
 796     @Override
 797     public byte[] updateGroup(byte[] groupId, String name, List<String> members, String avatar) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 798         if (groupId.length == 0) {
 799             groupId = null;
 800         }
 801         if (name.isEmpty()) {
 802             name = null;
 803         }
 804         if (members.size() == 0) {
 805             members = null;
 806         }
 807         if (avatar.isEmpty()) {
 808             avatar = null;
 809         }
 810         return sendUpdateGroupMessage(groupId, name, members, avatar);
 811     }
 812
 813     /**
 814      * Change the expiration timer for a thread (number of groupId)
 815      *
 816      * @param numberOrGroupId
 817      * @param messageExpirationTimer
 818      */
 819     public void setExpirationTimer(String numberOrGroupId, int messageExpirationTimer) {
 820         ThreadInfo thread = account.getThreadStore().getThread(numberOrGroupId);
 821         thread.messageExpirationTime = messageExpirationTimer;
 822         account.getThreadStore().updateThread(thread);
 823     }
 824
 825     private void requestSyncGroups() throws IOException {
 826         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS).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 void requestSyncContacts() throws IOException {
 836         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS).build();
 837         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 838         try {
 839             sendSyncMessage(message);
 840         } catch (UntrustedIdentityException e) {
 841             e.printStackTrace();
 842         }
 843     }
 844
 845     private void requestSyncBlocked() throws IOException {
 846         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED).build();
 847         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 848         try {
 849             sendSyncMessage(message);
 850         } catch (UntrustedIdentityException e) {
 851             e.printStackTrace();
 852         }
 853     }
 854
 855     private void requestSyncConfiguration() throws IOException {
 856         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION).build();
 857         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 858         try {
 859             sendSyncMessage(message);
 860         } catch (UntrustedIdentityException e) {
 861             e.printStackTrace();
 862         }
 863     }
 864
 865     private byte[] getSelfUnidentifiedAccessKey() {
 866         return UnidentifiedAccess.deriveAccessKeyFrom(account.getProfileKey());
 867     }
 868
 869     private byte[] getTargetUnidentifiedAccessKey(SignalServiceAddress recipient) {
 870         // TODO implement
 871         return null;
 872     }
 873
 874     private Optional<UnidentifiedAccessPair> getAccessForSync() {
 875         // TODO implement
 876         return Optional.absent();
 877     }
 878
 879     private List<Optional<UnidentifiedAccessPair>> getAccessFor(Collection<SignalServiceAddress> recipients) {
 880         List<Optional<UnidentifiedAccessPair>> result = new ArrayList<>(recipients.size());
 881         for (SignalServiceAddress recipient : recipients) {
 882             result.add(Optional.<UnidentifiedAccessPair>absent());
 883         }
 884         return result;
 885     }
 886
 887     private Optional<UnidentifiedAccessPair> getAccessFor(SignalServiceAddress recipient) {
 888         // TODO implement
 889         return Optional.absent();
 890     }
 891
 892     private void sendSyncMessage(SignalServiceSyncMessage message)
 893             throws IOException, UntrustedIdentityException {
 894         SignalServiceMessageSender messageSender = getMessageSender();
 895         try {
 896             messageSender.sendMessage(message, getAccessForSync());
 897         } catch (UntrustedIdentityException e) {
 898             account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
 899             throw e;
 900         }
 901     }
 902
 903     /**
 904      * This method throws an EncapsulatedExceptions exception instead of returning a list of SendMessageResult.
 905      */
 906     private void sendMessageLegacy(SignalServiceDataMessage.Builder messageBuilder, Collection<String> recipients)
 907             throws EncapsulatedExceptions, IOException {
 908         List<SendMessageResult> results = sendMessage(messageBuilder, recipients);
 909
 910         List<UntrustedIdentityException> untrustedIdentities = new LinkedList<>();
 911         List<UnregisteredUserException> unregisteredUsers = new LinkedList<>();
 912         List<NetworkFailureException> networkExceptions = new LinkedList<>();
 913
 914         for (SendMessageResult result : results) {
 915             if (result.isUnregisteredFailure()) {
 916                 unregisteredUsers.add(new UnregisteredUserException(result.getAddress().getNumber().get(), null));
 917             } else if (result.isNetworkFailure()) {
 918                 networkExceptions.add(new NetworkFailureException(result.getAddress().getNumber().get(), null));
 919             } else if (result.getIdentityFailure() != null) {
 920                 untrustedIdentities.add(new UntrustedIdentityException("Untrusted", result.getAddress().getNumber().get(), result.getIdentityFailure().getIdentityKey()));
 921             }
 922         }
 923         if (!untrustedIdentities.isEmpty() || !unregisteredUsers.isEmpty() || !networkExceptions.isEmpty()) {
 924             throw new EncapsulatedExceptions(untrustedIdentities, unregisteredUsers, networkExceptions);
 925         }
 926     }
 927
 928     private List<SendMessageResult> sendMessage(SignalServiceDataMessage.Builder messageBuilder, Collection<String> recipients)
 929             throws IOException {
 930         Set<SignalServiceAddress> recipientsTS = Utils.getSignalServiceAddresses(recipients, username);
 931         if (recipientsTS == null) {
 932             account.save();
 933             return Collections.emptyList();
 934         }
 935
 936         SignalServiceDataMessage message = null;
 937         try {
 938             SignalServiceMessageSender messageSender = getMessageSender();
 939
 940             message = messageBuilder.build();
 941             if (message.getGroupInfo().isPresent()) {
 942                 try {
 943                     final boolean isRecipientUpdate = false;
 944                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipientsTS), getAccessFor(recipientsTS), isRecipientUpdate, message);
 945                     for (SendMessageResult r : result) {
 946                         if (r.getIdentityFailure() != null) {
 947                             account.getSignalProtocolStore().saveIdentity(r.getAddress().getNumber().get(), r.getIdentityFailure().getIdentityKey(), TrustLevel.UNTRUSTED);
 948                         }
 949                     }
 950                     return result;
 951                 } catch (UntrustedIdentityException e) {
 952                     account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
 953                     return Collections.emptyList();
 954                 }
 955             } else if (recipientsTS.size() == 1 && recipientsTS.contains(getSelfAddress())) {
 956                 SignalServiceAddress recipient = getSelfAddress();
 957                 final Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
 958                 SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
 959                         message.getTimestamp(),
 960                         message,
 961                         message.getExpiresInSeconds(),
 962                         Collections.singletonMap(recipient, unidentifiedAccess.isPresent()),
 963                         false);
 964                 SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
 965
 966                 List<SendMessageResult> results = new ArrayList<>(recipientsTS.size());
 967                 try {
 968                     messageSender.sendMessage(syncMessage, unidentifiedAccess);
 969                 } catch (UntrustedIdentityException e) {
 970                     account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
 971                     results.add(SendMessageResult.identityFailure(recipient, e.getIdentityKey()));
 972                 }
 973                 return results;
 974             } else {
 975                 // Send to all individually, so sync messages are sent correctly
 976                 List<SendMessageResult> results = new ArrayList<>(recipientsTS.size());
 977                 for (SignalServiceAddress address : recipientsTS) {
 978                     ThreadInfo thread = account.getThreadStore().getThread(address.getNumber().get());
 979                     if (thread != null) {
 980                         messageBuilder.withExpiration(thread.messageExpirationTime);
 981                     } else {
 982                         messageBuilder.withExpiration(0);
 983                     }
 984                     message = messageBuilder.build();
 985                     try {
 986                         SendMessageResult result = messageSender.sendMessage(address, getAccessFor(address), message);
 987                         results.add(result);
 988                     } catch (UntrustedIdentityException e) {
 989                         account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
 990                         results.add(SendMessageResult.identityFailure(address, e.getIdentityKey()));
 991                     }
 992                 }
 993                 return results;
 994             }
 995         } finally {
 996             if (message != null && message.isEndSession()) {
 997                 for (SignalServiceAddress recipient : recipientsTS) {
 998                     handleEndSession(recipient.getNumber().get());
 999                 }
1000             }
1001             account.save();
1002         }
1003     }
1004
1005     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, ProtocolUntrustedIdentityException, SelfSendException, UnsupportedDataMessageException {
1006         SignalServiceCipher cipher = new SignalServiceCipher(getSelfAddress(), account.getSignalProtocolStore(), Utils.getCertificateValidator());
1007         try {
1008             return cipher.decrypt(envelope);
1009         } catch (ProtocolUntrustedIdentityException e) {
1010             // TODO We don't get the new untrusted identity from ProtocolUntrustedIdentityException anymore ... we need to get it from somewhere else
1011 //            account.getSignalProtocolStore().saveIdentity(e.getSender(), e.getUntrustedIdentity(), TrustLevel.UNTRUSTED);
1012             throw e;
1013         }
1014     }
1015
1016     private void handleEndSession(String source) {
1017         account.getSignalProtocolStore().deleteAllSessions(source);
1018     }
1019
1020     private void handleSignalServiceDataMessage(SignalServiceDataMessage message, boolean isSync, String source, SignalServiceAddress destination, boolean ignoreAttachments) {
1021         String threadId;
1022         if (message.getGroupInfo().isPresent()) {
1023             SignalServiceGroup groupInfo = message.getGroupInfo().get();
1024             threadId = Base64.encodeBytes(groupInfo.getGroupId());
1025             GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
1026             switch (groupInfo.getType()) {
1027                 case UPDATE:
1028                     if (group == null) {
1029                         group = new GroupInfo(groupInfo.getGroupId());
1030                     }
1031
1032                     if (groupInfo.getAvatar().isPresent()) {
1033                         SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1034                         if (avatar.isPointer()) {
1035                             try {
1036                                 retrieveGroupAvatarAttachment(avatar.asPointer(), group.groupId);
1037                             } catch (IOException | InvalidMessageException e) {
1038                                 System.err.println("Failed to retrieve group avatar (" + avatar.asPointer().getId() + "): " + e.getMessage());
1039                             }
1040                         }
1041                     }
1042
1043                     if (groupInfo.getName().isPresent()) {
1044                         group.name = groupInfo.getName().get();
1045                     }
1046
1047                     if (groupInfo.getMembers().isPresent()) {
1048                         group.addMembers(groupInfo.getMembers().get());
1049                     }
1050
1051                     account.getGroupStore().updateGroup(group);
1052                     break;
1053                 case DELIVER:
1054                     if (group == null) {
1055                         try {
1056                             sendGroupInfoRequest(groupInfo.getGroupId(), source);
1057                         } catch (IOException | EncapsulatedExceptions e) {
1058                             e.printStackTrace();
1059                         }
1060                     }
1061                     break;
1062                 case QUIT:
1063                     if (group == null) {
1064                         try {
1065                             sendGroupInfoRequest(groupInfo.getGroupId(), source);
1066                         } catch (IOException | EncapsulatedExceptions e) {
1067                             e.printStackTrace();
1068                         }
1069                     } else {
1070                         group.members.remove(source);
1071                         account.getGroupStore().updateGroup(group);
1072                     }
1073                     break;
1074                 case REQUEST_INFO:
1075                     if (group != null) {
1076                         try {
1077                             sendUpdateGroupMessage(groupInfo.getGroupId(), source);
1078                         } catch (IOException | EncapsulatedExceptions e) {
1079                             e.printStackTrace();
1080                         } catch (NotAGroupMemberException e) {
1081                             // We have left this group, so don't send a group update message
1082                         }
1083                     }
1084                     break;
1085             }
1086         } else {
1087             if (isSync) {
1088                 threadId = destination.getNumber().get();
1089             } else {
1090                 threadId = source;
1091             }
1092         }
1093         if (message.isEndSession()) {
1094             handleEndSession(isSync ? destination.getNumber().get() : source);
1095         }
1096         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1097             ThreadInfo thread = account.getThreadStore().getThread(threadId);
1098             if (thread == null) {
1099                 thread = new ThreadInfo();
1100                 thread.id = threadId;
1101             }
1102             if (thread.messageExpirationTime != message.getExpiresInSeconds()) {
1103                 thread.messageExpirationTime = message.getExpiresInSeconds();
1104                 account.getThreadStore().updateThread(thread);
1105             }
1106         }
1107         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1108             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1109                 if (attachment.isPointer()) {
1110                     try {
1111                         retrieveAttachment(attachment.asPointer());
1112                     } catch (IOException | InvalidMessageException e) {
1113                         System.err.println("Failed to retrieve attachment (" + attachment.asPointer().getId() + "): " + e.getMessage());
1114                     }
1115                 }
1116             }
1117         }
1118         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1119             if (source.equals(username)) {
1120                 this.account.setProfileKey(message.getProfileKey().get());
1121             }
1122             ContactInfo contact = account.getContactStore().getContact(source);
1123             if (contact == null) {
1124                 contact = new ContactInfo();
1125                 contact.number = source;
1126             }
1127             contact.profileKey = Base64.encodeBytes(message.getProfileKey().get());
1128         }
1129         if (message.getPreviews().isPresent()) {
1130             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1131             for (SignalServiceDataMessage.Preview preview : previews) {
1132                 if (preview.getImage().isPresent() && preview.getImage().get().isPointer()) {
1133                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
1134                     try {
1135                         retrieveAttachment(attachment);
1136                     } catch (IOException | InvalidMessageException e) {
1137                         System.err.println("Failed to retrieve attachment (" + attachment.getId() + "): " + e.getMessage());
1138                     }
1139                 }
1140             }
1141         }
1142     }
1143
1144     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1145         final File cachePath = new File(getMessageCachePath());
1146         if (!cachePath.exists()) {
1147             return;
1148         }
1149         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
1150             if (!dir.isDirectory()) {
1151                 continue;
1152             }
1153
1154             for (final File fileEntry : Objects.requireNonNull(dir.listFiles())) {
1155                 if (!fileEntry.isFile()) {
1156                     continue;
1157                 }
1158                 SignalServiceEnvelope envelope;
1159                 try {
1160                     envelope = Utils.loadEnvelope(fileEntry);
1161                     if (envelope == null) {
1162                         continue;
1163                     }
1164                 } catch (IOException e) {
1165                     e.printStackTrace();
1166                     continue;
1167                 }
1168                 SignalServiceContent content = null;
1169                 if (!envelope.isReceipt()) {
1170                     try {
1171                         content = decryptMessage(envelope);
1172                     } catch (Exception e) {
1173                         continue;
1174                     }
1175                     handleMessage(envelope, content, ignoreAttachments);
1176                 }
1177                 account.save();
1178                 handler.handleMessage(envelope, content, null);
1179                 try {
1180                     Files.delete(fileEntry.toPath());
1181                 } catch (IOException e) {
1182                     System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1183                 }
1184             }
1185             // Try to delete directory if empty
1186             dir.delete();
1187         }
1188     }
1189
1190     public void receiveMessages(long timeout, TimeUnit unit, boolean returnOnTimeout, boolean ignoreAttachments, ReceiveMessageHandler handler) throws IOException {
1191         retryFailedReceivedMessages(handler, ignoreAttachments);
1192         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1193
1194         try {
1195             if (messagePipe == null) {
1196                 messagePipe = messageReceiver.createMessagePipe();
1197             }
1198
1199             while (true) {
1200                 SignalServiceEnvelope envelope;
1201                 SignalServiceContent content = null;
1202                 Exception exception = null;
1203                 final long now = new Date().getTime();
1204                 try {
1205                     envelope = messagePipe.read(timeout, unit, new SignalServiceMessagePipe.MessagePipeCallback() {
1206                         @Override
1207                         public void onMessage(SignalServiceEnvelope envelope) {
1208                             // store message on disk, before acknowledging receipt to the server
1209                             try {
1210                                 File cacheFile = getMessageCacheFile(envelope.getSourceE164().get(), now, envelope.getTimestamp());
1211                                 Utils.storeEnvelope(envelope, cacheFile);
1212                             } catch (IOException e) {
1213                                 System.err.println("Failed to store encrypted message in disk cache, ignoring: " + e.getMessage());
1214                             }
1215                         }
1216                     });
1217                 } catch (TimeoutException e) {
1218                     if (returnOnTimeout)
1219                         return;
1220                     continue;
1221                 } catch (InvalidVersionException e) {
1222                     System.err.println("Ignoring error: " + e.getMessage());
1223                     continue;
1224                 }
1225                 if (!envelope.isReceipt()) {
1226                     try {
1227                         content = decryptMessage(envelope);
1228                     } catch (Exception e) {
1229                         exception = e;
1230                     }
1231                     handleMessage(envelope, content, ignoreAttachments);
1232                 }
1233                 account.save();
1234                 if (!isMessageBlocked(envelope, content)) {
1235                     handler.handleMessage(envelope, content, exception);
1236                 }
1237                 if (!(exception instanceof ProtocolUntrustedIdentityException)) {
1238                     File cacheFile = null;
1239                     try {
1240                         cacheFile = getMessageCacheFile(envelope.getSourceE164().get(), now, envelope.getTimestamp());
1241                         Files.delete(cacheFile.toPath());
1242                         // Try to delete directory if empty
1243                         new File(getMessageCachePath()).delete();
1244                     } catch (IOException e) {
1245                         System.err.println("Failed to delete cached message file “" + cacheFile + "”: " + e.getMessage());
1246                     }
1247                 }
1248             }
1249         } finally {
1250             if (messagePipe != null) {
1251                 messagePipe.shutdown();
1252                 messagePipe = null;
1253             }
1254         }
1255     }
1256
1257     private boolean isMessageBlocked(SignalServiceEnvelope envelope, SignalServiceContent content) {
1258         SignalServiceAddress source;
1259         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1260             source = envelope.getSourceAddress();
1261         } else if (content != null) {
1262             source = content.getSender();
1263         } else {
1264             return false;
1265         }
1266         ContactInfo sourceContact = getContact(source.getNumber().get());
1267         if (sourceContact != null && sourceContact.blocked) {
1268             return true;
1269         }
1270
1271         if (content != null && content.getDataMessage().isPresent()) {
1272             SignalServiceDataMessage message = content.getDataMessage().get();
1273             if (message.getGroupInfo().isPresent()) {
1274                 SignalServiceGroup groupInfo = message.getGroupInfo().get();
1275                 GroupInfo group = getGroup(groupInfo.getGroupId());
1276                 if (groupInfo.getType() == SignalServiceGroup.Type.DELIVER && group != null && group.blocked) {
1277                     return true;
1278                 }
1279             }
1280         }
1281         return false;
1282     }
1283
1284     private void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments) {
1285         if (content != null) {
1286             SignalServiceAddress sender;
1287             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1288                 sender = envelope.getSourceAddress();
1289             } else {
1290                 sender = content.getSender();
1291             }
1292             if (content.getDataMessage().isPresent()) {
1293                 SignalServiceDataMessage message = content.getDataMessage().get();
1294                 handleSignalServiceDataMessage(message, false, sender.getNumber().get(), getSelfAddress(), ignoreAttachments);
1295             }
1296             if (content.getSyncMessage().isPresent()) {
1297                 account.setMultiDevice(true);
1298                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1299                 if (syncMessage.getSent().isPresent()) {
1300                     SentTranscriptMessage message = syncMessage.getSent().get();
1301                     handleSignalServiceDataMessage(message.getMessage(), true, sender.getNumber().get(), message.getDestination().orNull(), ignoreAttachments);
1302                 }
1303                 if (syncMessage.getRequest().isPresent()) {
1304                     RequestMessage rm = syncMessage.getRequest().get();
1305                     if (rm.isContactsRequest()) {
1306                         try {
1307                             sendContacts();
1308                         } catch (UntrustedIdentityException | IOException e) {
1309                             e.printStackTrace();
1310                         }
1311                     }
1312                     if (rm.isGroupsRequest()) {
1313                         try {
1314                             sendGroups();
1315                         } catch (UntrustedIdentityException | IOException e) {
1316                             e.printStackTrace();
1317                         }
1318                     }
1319                     if (rm.isBlockedListRequest()) {
1320                         try {
1321                             sendBlockedList();
1322                         } catch (UntrustedIdentityException | IOException e) {
1323                             e.printStackTrace();
1324                         }
1325                     }
1326                     // TODO Handle rm.isConfigurationRequest();
1327                 }
1328                 if (syncMessage.getGroups().isPresent()) {
1329                     File tmpFile = null;
1330                     try {
1331                         tmpFile = IOUtils.createTempFile();
1332                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups().get().asPointer(), tmpFile)) {
1333                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1334                             DeviceGroup g;
1335                             while ((g = s.read()) != null) {
1336                                 GroupInfo syncGroup = account.getGroupStore().getGroup(g.getId());
1337                                 if (syncGroup == null) {
1338                                     syncGroup = new GroupInfo(g.getId());
1339                                 }
1340                                 if (g.getName().isPresent()) {
1341                                     syncGroup.name = g.getName().get();
1342                                 }
1343                                 syncGroup.addMembers(g.getMembers());
1344                                 syncGroup.active = g.isActive();
1345                                 syncGroup.blocked = g.isBlocked();
1346                                 if (g.getColor().isPresent()) {
1347                                     syncGroup.color = g.getColor().get();
1348                                 }
1349
1350                                 if (g.getAvatar().isPresent()) {
1351                                     retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId);
1352                                 }
1353                                 syncGroup.inboxPosition = g.getInboxPosition().orNull();
1354                                 syncGroup.archived = g.isArchived();
1355                                 account.getGroupStore().updateGroup(syncGroup);
1356                             }
1357                         }
1358                     } catch (Exception e) {
1359                         e.printStackTrace();
1360                     } finally {
1361                         if (tmpFile != null) {
1362                             try {
1363                                 Files.delete(tmpFile.toPath());
1364                             } catch (IOException e) {
1365                                 System.err.println("Failed to delete received groups temp file “" + tmpFile + "”: " + e.getMessage());
1366                             }
1367                         }
1368                     }
1369                 }
1370                 if (syncMessage.getBlockedList().isPresent()) {
1371                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1372                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1373                         if (address.getNumber().isPresent()) {
1374                             try {
1375                                 setContactBlocked(address.getNumber().get(), true);
1376                             } catch (InvalidNumberException e) {
1377                                 e.printStackTrace();
1378                             }
1379                         }
1380                     }
1381                     for (byte[] groupId : blockedListMessage.getGroupIds()) {
1382                         try {
1383                             setGroupBlocked(groupId, true);
1384                         } catch (GroupNotFoundException e) {
1385                             System.err.println("BlockedListMessage contained groupID that was not found in GroupStore: " + Base64.encodeBytes(groupId));
1386                         }
1387                     }
1388                 }
1389                 if (syncMessage.getContacts().isPresent()) {
1390                     File tmpFile = null;
1391                     try {
1392                         tmpFile = IOUtils.createTempFile();
1393                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1394                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream().asPointer(), tmpFile)) {
1395                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1396                             if (contactsMessage.isComplete()) {
1397                                 account.getContactStore().clear();
1398                             }
1399                             DeviceContact c;
1400                             while ((c = s.read()) != null) {
1401                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
1402                                     account.setProfileKey(c.getProfileKey().get());
1403                                 }
1404                                 ContactInfo contact = account.getContactStore().getContact(c.getAddress().getNumber().get());
1405                                 if (contact == null) {
1406                                     contact = new ContactInfo();
1407                                     contact.number = c.getAddress().getNumber().get();
1408                                 }
1409                                 if (c.getName().isPresent()) {
1410                                     contact.name = c.getName().get();
1411                                 }
1412                                 if (c.getColor().isPresent()) {
1413                                     contact.color = c.getColor().get();
1414                                 }
1415                                 if (c.getProfileKey().isPresent()) {
1416                                     contact.profileKey = Base64.encodeBytes(c.getProfileKey().get());
1417                                 }
1418                                 if (c.getVerified().isPresent()) {
1419                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
1420                                     account.getSignalProtocolStore().saveIdentity(verifiedMessage.getDestination().getNumber().get(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1421                                 }
1422                                 if (c.getExpirationTimer().isPresent()) {
1423                                     ThreadInfo thread = account.getThreadStore().getThread(c.getAddress().getNumber().get());
1424                                     if (thread == null) {
1425                                         thread = new ThreadInfo();
1426                                         thread.id = c.getAddress().getNumber().get();
1427                                     }
1428                                     thread.messageExpirationTime = c.getExpirationTimer().get();
1429                                     account.getThreadStore().updateThread(thread);
1430                                 }
1431                                 contact.blocked = c.isBlocked();
1432                                 contact.inboxPosition = c.getInboxPosition().orNull();
1433                                 contact.archived = c.isArchived();
1434                                 account.getContactStore().updateContact(contact);
1435
1436                                 if (c.getAvatar().isPresent()) {
1437                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
1438                                 }
1439                             }
1440                         }
1441                     } catch (Exception e) {
1442                         e.printStackTrace();
1443                     } finally {
1444                         if (tmpFile != null) {
1445                             try {
1446                                 Files.delete(tmpFile.toPath());
1447                             } catch (IOException e) {
1448                                 System.err.println("Failed to delete received contacts temp file “" + tmpFile + "”: " + e.getMessage());
1449                             }
1450                         }
1451                     }
1452                 }
1453                 if (syncMessage.getVerified().isPresent()) {
1454                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
1455                     account.getSignalProtocolStore().saveIdentity(verifiedMessage.getDestination().getNumber().get(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1456                 }
1457                 if (syncMessage.getConfiguration().isPresent()) {
1458                     // TODO
1459                 }
1460             }
1461         }
1462     }
1463
1464     private File getContactAvatarFile(String number) {
1465         return new File(avatarsPath, "contact-" + number);
1466     }
1467
1468     private File retrieveContactAvatarAttachment(SignalServiceAttachment attachment, String number) throws IOException, InvalidMessageException {
1469         IOUtils.createPrivateDirectories(avatarsPath);
1470         if (attachment.isPointer()) {
1471             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1472             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
1473         } else {
1474             SignalServiceAttachmentStream stream = attachment.asStream();
1475             return Utils.retrieveAttachment(stream, getContactAvatarFile(number));
1476         }
1477     }
1478
1479     private File getGroupAvatarFile(byte[] groupId) {
1480         return new File(avatarsPath, "group-" + Base64.encodeBytes(groupId).replace("/", "_"));
1481     }
1482
1483     private File retrieveGroupAvatarAttachment(SignalServiceAttachment attachment, byte[] groupId) throws IOException, InvalidMessageException {
1484         IOUtils.createPrivateDirectories(avatarsPath);
1485         if (attachment.isPointer()) {
1486             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1487             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
1488         } else {
1489             SignalServiceAttachmentStream stream = attachment.asStream();
1490             return Utils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
1491         }
1492     }
1493
1494     public File getAttachmentFile(long attachmentId) {
1495         return new File(attachmentsPath, attachmentId + "");
1496     }
1497
1498     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException {
1499         IOUtils.createPrivateDirectories(attachmentsPath);
1500         return retrieveAttachment(pointer, getAttachmentFile(pointer.getId()), true);
1501     }
1502
1503     private File retrieveAttachment(SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview) throws IOException, InvalidMessageException {
1504         if (storePreview && pointer.getPreview().isPresent()) {
1505             File previewFile = new File(outputFile + ".preview");
1506             try (OutputStream output = new FileOutputStream(previewFile)) {
1507                 byte[] preview = pointer.getPreview().get();
1508                 output.write(preview, 0, preview.length);
1509             } catch (FileNotFoundException e) {
1510                 e.printStackTrace();
1511                 return null;
1512             }
1513         }
1514
1515         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1516
1517         File tmpFile = IOUtils.createTempFile();
1518         try (InputStream input = messageReceiver.retrieveAttachment(pointer, tmpFile, BaseConfig.MAX_ATTACHMENT_SIZE)) {
1519             try (OutputStream output = new FileOutputStream(outputFile)) {
1520                 byte[] buffer = new byte[4096];
1521                 int read;
1522
1523                 while ((read = input.read(buffer)) != -1) {
1524                     output.write(buffer, 0, read);
1525                 }
1526             } catch (FileNotFoundException e) {
1527                 e.printStackTrace();
1528                 return null;
1529             }
1530         } finally {
1531             try {
1532                 Files.delete(tmpFile.toPath());
1533             } catch (IOException e) {
1534                 System.err.println("Failed to delete received attachment temp file “" + tmpFile + "”: " + e.getMessage());
1535             }
1536         }
1537         return outputFile;
1538     }
1539
1540     private InputStream retrieveAttachmentAsStream(SignalServiceAttachmentPointer pointer, File tmpFile) throws IOException, InvalidMessageException {
1541         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1542         return messageReceiver.retrieveAttachment(pointer, tmpFile, BaseConfig.MAX_ATTACHMENT_SIZE);
1543     }
1544
1545     @Override
1546     public boolean isRemote() {
1547         return false;
1548     }
1549
1550     private void sendGroups() throws IOException, UntrustedIdentityException {
1551         File groupsFile = IOUtils.createTempFile();
1552
1553         try {
1554             try (OutputStream fos = new FileOutputStream(groupsFile)) {
1555                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
1556                 for (GroupInfo record : account.getGroupStore().getGroups()) {
1557                     ThreadInfo info = account.getThreadStore().getThread(Base64.encodeBytes(record.groupId));
1558                     out.write(new DeviceGroup(record.groupId, Optional.fromNullable(record.name),
1559                             new ArrayList<>(record.getMembers()), createGroupAvatarAttachment(record.groupId),
1560                             record.active, Optional.fromNullable(info != null ? info.messageExpirationTime : null),
1561                             Optional.fromNullable(record.color), record.blocked, Optional.fromNullable(record.inboxPosition), record.archived));
1562                 }
1563             }
1564
1565             if (groupsFile.exists() && groupsFile.length() > 0) {
1566                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
1567                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1568                             .withStream(groupsFileStream)
1569                             .withContentType("application/octet-stream")
1570                             .withLength(groupsFile.length())
1571                             .build();
1572
1573                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
1574                 }
1575             }
1576         } finally {
1577             try {
1578                 Files.delete(groupsFile.toPath());
1579             } catch (IOException e) {
1580                 System.err.println("Failed to delete groups temp file “" + groupsFile + "”: " + e.getMessage());
1581             }
1582         }
1583     }
1584
1585     public void sendContacts() throws IOException, UntrustedIdentityException {
1586         File contactsFile = IOUtils.createTempFile();
1587
1588         try {
1589             try (OutputStream fos = new FileOutputStream(contactsFile)) {
1590                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
1591                 for (ContactInfo record : account.getContactStore().getContacts()) {
1592                     VerifiedMessage verifiedMessage = null;
1593                     ThreadInfo info = account.getThreadStore().getThread(record.number);
1594                     if (getIdentities().containsKey(record.number)) {
1595                         JsonIdentityKeyStore.Identity currentIdentity = null;
1596                         for (JsonIdentityKeyStore.Identity id : getIdentities().get(record.number)) {
1597                             if (currentIdentity == null || id.getDateAdded().after(currentIdentity.getDateAdded())) {
1598                                 currentIdentity = id;
1599                             }
1600                         }
1601                         if (currentIdentity != null) {
1602                             verifiedMessage = new VerifiedMessage(record.getAddress(), currentIdentity.getIdentityKey(), currentIdentity.getTrustLevel().toVerifiedState(), currentIdentity.getDateAdded().getTime());
1603                         }
1604                     }
1605
1606                     byte[] profileKey = record.profileKey == null ? null : Base64.decode(record.profileKey);
1607                     out.write(new DeviceContact(record.getAddress(), Optional.fromNullable(record.name),
1608                             createContactAvatarAttachment(record.number), Optional.fromNullable(record.color),
1609                             Optional.fromNullable(verifiedMessage), Optional.fromNullable(profileKey), record.blocked,
1610                             Optional.fromNullable(info != null ? info.messageExpirationTime : null),
1611                             Optional.fromNullable(record.inboxPosition), record.archived));
1612                 }
1613
1614                 if (account.getProfileKey() != null) {
1615                     // Send our own profile key as well
1616                     out.write(new DeviceContact(account.getSelfAddress(),
1617                             Optional.<String>absent(), Optional.<SignalServiceAttachmentStream>absent(),
1618                             Optional.<String>absent(), Optional.<VerifiedMessage>absent(),
1619                             Optional.of(account.getProfileKey()),
1620                             false, Optional.<Integer>absent(), Optional.<Integer>absent(), false));
1621                 }
1622             }
1623
1624             if (contactsFile.exists() && contactsFile.length() > 0) {
1625                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
1626                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1627                             .withStream(contactsFileStream)
1628                             .withContentType("application/octet-stream")
1629                             .withLength(contactsFile.length())
1630                             .build();
1631
1632                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
1633                 }
1634             }
1635         } finally {
1636             try {
1637                 Files.delete(contactsFile.toPath());
1638             } catch (IOException e) {
1639                 System.err.println("Failed to delete contacts temp file “" + contactsFile + "”: " + e.getMessage());
1640             }
1641         }
1642     }
1643
1644     private void sendBlockedList() throws IOException, UntrustedIdentityException {
1645         List<SignalServiceAddress> addresses = new ArrayList<>();
1646         for (ContactInfo record : account.getContactStore().getContacts()) {
1647             if (record.blocked) {
1648                 addresses.add(record.getAddress());
1649             }
1650         }
1651         List<byte[]> groupIds = new ArrayList<>();
1652         for (GroupInfo record : account.getGroupStore().getGroups()) {
1653             if (record.blocked) {
1654                 groupIds.add(record.groupId);
1655             }
1656         }
1657         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
1658     }
1659
1660     private void sendVerifiedMessage(SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel) throws IOException, UntrustedIdentityException {
1661         VerifiedMessage verifiedMessage = new VerifiedMessage(destination, identityKey, trustLevel.toVerifiedState(), System.currentTimeMillis());
1662         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
1663     }
1664
1665     public List<ContactInfo> getContacts() {
1666         return account.getContactStore().getContacts();
1667     }
1668
1669     public ContactInfo getContact(String number) {
1670         return account.getContactStore().getContact(number);
1671     }
1672
1673     public GroupInfo getGroup(byte[] groupId) {
1674         return account.getGroupStore().getGroup(groupId);
1675     }
1676
1677     public Map<String, List<JsonIdentityKeyStore.Identity>> getIdentities() {
1678         return account.getSignalProtocolStore().getIdentities();
1679     }
1680
1681     public Pair<String, List<JsonIdentityKeyStore.Identity>> getIdentities(String number) throws InvalidNumberException {
1682         String canonicalizedNumber = Utils.canonicalizeNumber(number, username);
1683         return new Pair<>(canonicalizedNumber, account.getSignalProtocolStore().getIdentities(canonicalizedNumber));
1684     }
1685
1686     /**
1687      * Trust this the identity with this fingerprint
1688      *
1689      * @param name        username of the identity
1690      * @param fingerprint Fingerprint
1691      */
1692     public boolean trustIdentityVerified(String name, byte[] fingerprint) {
1693         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(name);
1694         if (ids == null) {
1695             return false;
1696         }
1697         for (JsonIdentityKeyStore.Identity id : ids) {
1698             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
1699                 continue;
1700             }
1701
1702             account.getSignalProtocolStore().saveIdentity(name, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1703             try {
1704                 sendVerifiedMessage(new SignalServiceAddress(null, name), id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1705             } catch (IOException | UntrustedIdentityException e) {
1706                 e.printStackTrace();
1707             }
1708             account.save();
1709             return true;
1710         }
1711         return false;
1712     }
1713
1714     /**
1715      * Trust this the identity with this safety number
1716      *
1717      * @param name         username of the identity
1718      * @param safetyNumber Safety number
1719      */
1720     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) {
1721         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(name);
1722         if (ids == null) {
1723             return false;
1724         }
1725         for (JsonIdentityKeyStore.Identity id : ids) {
1726             if (!safetyNumber.equals(computeSafetyNumber(name, id.getIdentityKey()))) {
1727                 continue;
1728             }
1729
1730             account.getSignalProtocolStore().saveIdentity(name, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1731             try {
1732                 sendVerifiedMessage(new SignalServiceAddress(null, name), id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1733             } catch (IOException | UntrustedIdentityException e) {
1734                 e.printStackTrace();
1735             }
1736             account.save();
1737             return true;
1738         }
1739         return false;
1740     }
1741
1742     /**
1743      * Trust all keys of this identity without verification
1744      *
1745      * @param name username of the identity
1746      */
1747     public boolean trustIdentityAllKeys(String name) {
1748         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(name);
1749         if (ids == null) {
1750             return false;
1751         }
1752         for (JsonIdentityKeyStore.Identity id : ids) {
1753             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
1754                 account.getSignalProtocolStore().saveIdentity(name, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
1755                 try {
1756                     sendVerifiedMessage(new SignalServiceAddress(null, name), id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
1757                 } catch (IOException | UntrustedIdentityException e) {
1758                     e.printStackTrace();
1759                 }
1760             }
1761         }
1762         account.save();
1763         return true;
1764     }
1765
1766     public String computeSafetyNumber(String theirUsername, IdentityKey theirIdentityKey) {
1767         return Utils.computeSafetyNumber(username, getIdentity(), theirUsername, theirIdentityKey);
1768     }
1769
1770     public interface ReceiveMessageHandler {
1771
1772         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
1773     }
1774 }