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(), 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, 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         accountManager.setPin(pin);
 411         if (pin.isPresent()) {
 412             account.setRegistrationLockPin(pin.get());
 413         } else {
 414             account.setRegistrationLockPin(null);
 415         }
 416         account.save();
 417     }
 418
 419     private void refreshPreKeys() throws IOException {
 420         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 421         final IdentityKeyPair identityKeyPair = account.getSignalProtocolStore().getIdentityKeyPair();
 422         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 423
 424         accountManager.setPreKeys(getIdentity(), signedPreKeyRecord, oneTimePreKeys);
 425     }
 426
 427     private SignalServiceMessageReceiver getMessageReceiver() {
 428         return new SignalServiceMessageReceiver(BaseConfig.serviceConfiguration, null, username, account.getPassword(), account.getDeviceId(), account.getSignalingKey(), BaseConfig.USER_AGENT, null, timer);
 429     }
 430
 431     private SignalServiceMessageSender getMessageSender() {
 432         return new SignalServiceMessageSender(BaseConfig.serviceConfiguration, null, username, account.getPassword(),
 433                 account.getDeviceId(), account.getSignalProtocolStore(), BaseConfig.USER_AGENT, account.isMultiDevice(), Optional.fromNullable(messagePipe), Optional.fromNullable(unidentifiedMessagePipe), Optional.<SignalServiceMessageSender.EventListener>absent());
 434     }
 435
 436     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(byte[] groupId) throws IOException {
 437         File file = getGroupAvatarFile(groupId);
 438         if (!file.exists()) {
 439             return Optional.absent();
 440         }
 441
 442         return Optional.of(Utils.createAttachment(file));
 443     }
 444
 445     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(String number) throws IOException {
 446         File file = getContactAvatarFile(number);
 447         if (!file.exists()) {
 448             return Optional.absent();
 449         }
 450
 451         return Optional.of(Utils.createAttachment(file));
 452     }
 453
 454     private GroupInfo getGroupForSending(byte[] groupId) throws GroupNotFoundException, NotAGroupMemberException {
 455         GroupInfo g = account.getGroupStore().getGroup(groupId);
 456         if (g == null) {
 457             throw new GroupNotFoundException(groupId);
 458         }
 459         for (String member : g.members) {
 460             if (member.equals(this.username)) {
 461                 return g;
 462             }
 463         }
 464         throw new NotAGroupMemberException(groupId, g.name);
 465     }
 466
 467     public List<GroupInfo> getGroups() {
 468         return account.getGroupStore().getGroups();
 469     }
 470
 471     @Override
 472     public void sendGroupMessage(String messageText, List<String> attachments,
 473                                  byte[] groupId)
 474             throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 475         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 476         if (attachments != null) {
 477             messageBuilder.withAttachments(Utils.getSignalServiceAttachments(attachments));
 478         }
 479         if (groupId != null) {
 480             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 481                     .withId(groupId)
 482                     .build();
 483             messageBuilder.asGroupMessage(group);
 484         }
 485         ThreadInfo thread = account.getThreadStore().getThread(Base64.encodeBytes(groupId));
 486         if (thread != null) {
 487             messageBuilder.withExpiration(thread.messageExpirationTime);
 488         }
 489
 490         final GroupInfo g = getGroupForSending(groupId);
 491
 492         // Don't send group message to ourself
 493         final List<String> membersSend = new ArrayList<>(g.members);
 494         membersSend.remove(this.username);
 495         sendMessageLegacy(messageBuilder, membersSend);
 496     }
 497
 498     public void sendQuitGroupMessage(byte[] groupId) throws GroupNotFoundException, IOException, EncapsulatedExceptions {
 499         SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 500                 .withId(groupId)
 501                 .build();
 502
 503         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 504                 .asGroupMessage(group);
 505
 506         final GroupInfo g = getGroupForSending(groupId);
 507         g.members.remove(this.username);
 508         account.getGroupStore().updateGroup(g);
 509
 510         sendMessageLegacy(messageBuilder, g.members);
 511     }
 512
 513     private byte[] sendUpdateGroupMessage(byte[] groupId, String name, Collection<String> members, String avatarFile) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 514         GroupInfo g;
 515         if (groupId == null) {
 516             // Create new group
 517             g = new GroupInfo(KeyUtils.createGroupId());
 518             g.members.add(username);
 519         } else {
 520             g = getGroupForSending(groupId);
 521         }
 522
 523         if (name != null) {
 524             g.name = name;
 525         }
 526
 527         if (members != null) {
 528             Set<String> newMembers = new HashSet<>();
 529             for (String member : members) {
 530                 try {
 531                     member = Utils.canonicalizeNumber(member, username);
 532                 } catch (InvalidNumberException e) {
 533                     System.err.println("Failed to add member \"" + member + "\" to group: " + e.getMessage());
 534                     System.err.println("Aborting…");
 535                     System.exit(1);
 536                 }
 537                 if (g.members.contains(member)) {
 538                     continue;
 539                 }
 540                 newMembers.add(member);
 541                 g.members.add(member);
 542             }
 543             final List<ContactTokenDetails> contacts = accountManager.getContacts(newMembers);
 544             if (contacts.size() != newMembers.size()) {
 545                 // Some of the new members are not registered on Signal
 546                 for (ContactTokenDetails contact : contacts) {
 547                     newMembers.remove(contact.getNumber());
 548                 }
 549                 System.err.println("Failed to add members " + Util.join(", ", newMembers) + " to group: Not registered on Signal");
 550                 System.err.println("Aborting…");
 551                 System.exit(1);
 552             }
 553         }
 554
 555         if (avatarFile != null) {
 556             IOUtils.createPrivateDirectories(avatarsPath);
 557             File aFile = getGroupAvatarFile(g.groupId);
 558             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 559         }
 560
 561         account.getGroupStore().updateGroup(g);
 562
 563         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 564
 565         // Don't send group message to ourself
 566         final List<String> membersSend = new ArrayList<>(g.members);
 567         membersSend.remove(this.username);
 568         sendMessageLegacy(messageBuilder, membersSend);
 569         return g.groupId;
 570     }
 571
 572     private void sendUpdateGroupMessage(byte[] groupId, String recipient) throws IOException, EncapsulatedExceptions {
 573         if (groupId == null) {
 574             return;
 575         }
 576         GroupInfo g = getGroupForSending(groupId);
 577
 578         if (!g.members.contains(recipient)) {
 579             return;
 580         }
 581
 582         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 583
 584         // Send group message only to the recipient who requested it
 585         final List<String> membersSend = new ArrayList<>();
 586         membersSend.add(recipient);
 587         sendMessageLegacy(messageBuilder, membersSend);
 588     }
 589
 590     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfo g) {
 591         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 592                 .withId(g.groupId)
 593                 .withName(g.name)
 594                 .withMembers(new ArrayList<>(g.getMembers()));
 595
 596         File aFile = getGroupAvatarFile(g.groupId);
 597         if (aFile.exists()) {
 598             try {
 599                 group.withAvatar(Utils.createAttachment(aFile));
 600             } catch (IOException e) {
 601                 throw new AttachmentInvalidException(aFile.toString(), e);
 602             }
 603         }
 604
 605         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 606                 .asGroupMessage(group.build());
 607
 608         ThreadInfo thread = account.getThreadStore().getThread(Base64.encodeBytes(g.groupId));
 609         if (thread != null) {
 610             messageBuilder.withExpiration(thread.messageExpirationTime);
 611         }
 612
 613         return messageBuilder;
 614     }
 615
 616     private void sendGroupInfoRequest(byte[] groupId, String recipient) throws IOException, EncapsulatedExceptions {
 617         if (groupId == null) {
 618             return;
 619         }
 620
 621         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 622                 .withId(groupId);
 623
 624         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 625                 .asGroupMessage(group.build());
 626
 627         ThreadInfo thread = account.getThreadStore().getThread(Base64.encodeBytes(groupId));
 628         if (thread != null) {
 629             messageBuilder.withExpiration(thread.messageExpirationTime);
 630         }
 631
 632         // Send group info request message to the recipient who sent us a message with this groupId
 633         final List<String> membersSend = new ArrayList<>();
 634         membersSend.add(recipient);
 635         sendMessageLegacy(messageBuilder, membersSend);
 636     }
 637
 638     @Override
 639     public void sendMessage(String message, List<String> attachments, String recipient)
 640             throws EncapsulatedExceptions, AttachmentInvalidException, IOException {
 641         List<String> recipients = new ArrayList<>(1);
 642         recipients.add(recipient);
 643         sendMessage(message, attachments, recipients);
 644     }
 645
 646     @Override
 647     public void sendMessage(String messageText, List<String> attachments,
 648                             List<String> recipients)
 649             throws IOException, EncapsulatedExceptions, AttachmentInvalidException {
 650         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 651         if (attachments != null) {
 652             List<SignalServiceAttachment> attachmentStreams = Utils.getSignalServiceAttachments(attachments);
 653
 654             // Upload attachments here, so we only upload once even for multiple recipients
 655             SignalServiceMessageSender messageSender = getMessageSender();
 656             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 657             for (SignalServiceAttachment attachment : attachmentStreams) {
 658                 if (attachment.isStream()) {
 659                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 660                 } else if (attachment.isPointer()) {
 661                     attachmentPointers.add(attachment.asPointer());
 662                 }
 663             }
 664
 665             messageBuilder.withAttachments(attachmentPointers);
 666         }
 667         messageBuilder.withProfileKey(account.getProfileKey());
 668         sendMessageLegacy(messageBuilder, recipients);
 669     }
 670
 671     @Override
 672     public void sendEndSessionMessage(List<String> recipients) throws IOException, EncapsulatedExceptions {
 673         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 674                 .asEndSessionMessage();
 675
 676         sendMessageLegacy(messageBuilder, recipients);
 677     }
 678
 679     @Override
 680     public String getContactName(String number) throws InvalidNumberException {
 681         String canonicalizedNumber = Utils.canonicalizeNumber(number, username);
 682         ContactInfo contact = account.getContactStore().getContact(canonicalizedNumber);
 683         if (contact == null) {
 684             return "";
 685         } else {
 686             return contact.name;
 687         }
 688     }
 689
 690     @Override
 691     public void setContactName(String number, String name) throws InvalidNumberException {
 692         String canonicalizedNumber = Utils.canonicalizeNumber(number, username);
 693         ContactInfo contact = account.getContactStore().getContact(canonicalizedNumber);
 694         if (contact == null) {
 695             contact = new ContactInfo();
 696             contact.number = canonicalizedNumber;
 697             System.err.println("Add contact " + canonicalizedNumber + " named " + name);
 698         } else {
 699             System.err.println("Updating contact " + canonicalizedNumber + " name " + contact.name + " -> " + name);
 700         }
 701         contact.name = name;
 702         account.getContactStore().updateContact(contact);
 703         account.save();
 704     }
 705
 706     @Override
 707     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
 708         number = Utils.canonicalizeNumber(number, username);
 709         ContactInfo contact = account.getContactStore().getContact(number);
 710         if (contact == null) {
 711             contact = new ContactInfo();
 712             contact.number = number;
 713             System.err.println("Adding and " + (blocked ? "blocking" : "unblocking") + " contact " + number);
 714         } else {
 715             System.err.println((blocked ? "Blocking" : "Unblocking") + " contact " + number);
 716         }
 717         contact.blocked = blocked;
 718         account.getContactStore().updateContact(contact);
 719         account.save();
 720     }
 721
 722     @Override
 723     public void setGroupBlocked(final byte[] groupId, final boolean blocked) throws GroupNotFoundException {
 724         GroupInfo group = getGroup(groupId);
 725         if (group == null) {
 726             throw new GroupNotFoundException(groupId);
 727         } else {
 728             System.err.println((blocked ? "Blocking" : "Unblocking") + " group " + Base64.encodeBytes(groupId));
 729             group.blocked = blocked;
 730             account.getGroupStore().updateGroup(group);
 731             account.save();
 732         }
 733     }
 734
 735     @Override
 736     public List<byte[]> getGroupIds() {
 737         List<GroupInfo> groups = getGroups();
 738         List<byte[]> ids = new ArrayList<>(groups.size());
 739         for (GroupInfo group : groups) {
 740             ids.add(group.groupId);
 741         }
 742         return ids;
 743     }
 744
 745     @Override
 746     public String getGroupName(byte[] groupId) {
 747         GroupInfo group = getGroup(groupId);
 748         if (group == null) {
 749             return "";
 750         } else {
 751             return group.name;
 752         }
 753     }
 754
 755     @Override
 756     public List<String> getGroupMembers(byte[] groupId) {
 757         GroupInfo group = getGroup(groupId);
 758         if (group == null) {
 759             return new ArrayList<>();
 760         } else {
 761             return new ArrayList<>(group.members);
 762         }
 763     }
 764
 765     @Override
 766     public byte[] updateGroup(byte[] groupId, String name, List<String> members, String avatar) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 767         if (groupId.length == 0) {
 768             groupId = null;
 769         }
 770         if (name.isEmpty()) {
 771             name = null;
 772         }
 773         if (members.size() == 0) {
 774             members = null;
 775         }
 776         if (avatar.isEmpty()) {
 777             avatar = null;
 778         }
 779         return sendUpdateGroupMessage(groupId, name, members, avatar);
 780     }
 781
 782     /**
 783      * Change the expiration timer for a thread (number of groupId)
 784      *
 785      * @param numberOrGroupId
 786      * @param messageExpirationTimer
 787      */
 788     public void setExpirationTimer(String numberOrGroupId, int messageExpirationTimer) {
 789         ThreadInfo thread = account.getThreadStore().getThread(numberOrGroupId);
 790         thread.messageExpirationTime = messageExpirationTimer;
 791         account.getThreadStore().updateThread(thread);
 792     }
 793
 794     private void requestSyncGroups() throws IOException {
 795         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS).build();
 796         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 797         try {
 798             sendSyncMessage(message);
 799         } catch (UntrustedIdentityException e) {
 800             e.printStackTrace();
 801         }
 802     }
 803
 804     private void requestSyncContacts() throws IOException {
 805         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS).build();
 806         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 807         try {
 808             sendSyncMessage(message);
 809         } catch (UntrustedIdentityException e) {
 810             e.printStackTrace();
 811         }
 812     }
 813
 814     private void requestSyncBlocked() throws IOException {
 815         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED).build();
 816         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 817         try {
 818             sendSyncMessage(message);
 819         } catch (UntrustedIdentityException e) {
 820             e.printStackTrace();
 821         }
 822     }
 823
 824     private void requestSyncConfiguration() throws IOException {
 825         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION).build();
 826         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 827         try {
 828             sendSyncMessage(message);
 829         } catch (UntrustedIdentityException e) {
 830             e.printStackTrace();
 831         }
 832     }
 833
 834     private byte[] getSelfUnidentifiedAccessKey() {
 835         return UnidentifiedAccess.deriveAccessKeyFrom(account.getProfileKey());
 836     }
 837
 838     private byte[] getTargetUnidentifiedAccessKey(SignalServiceAddress recipient) {
 839         // TODO implement
 840         return null;
 841     }
 842
 843     private Optional<UnidentifiedAccessPair> getAccessForSync() {
 844         // TODO implement
 845         return Optional.absent();
 846     }
 847
 848     private List<Optional<UnidentifiedAccessPair>> getAccessFor(Collection<SignalServiceAddress> recipients) {
 849         List<Optional<UnidentifiedAccessPair>> result = new ArrayList<>(recipients.size());
 850         for (SignalServiceAddress recipient : recipients) {
 851             result.add(Optional.<UnidentifiedAccessPair>absent());
 852         }
 853         return result;
 854     }
 855
 856     private Optional<UnidentifiedAccessPair> getAccessFor(SignalServiceAddress recipient) {
 857         // TODO implement
 858         return Optional.absent();
 859     }
 860
 861     private void sendSyncMessage(SignalServiceSyncMessage message)
 862             throws IOException, UntrustedIdentityException {
 863         SignalServiceMessageSender messageSender = getMessageSender();
 864         try {
 865             messageSender.sendMessage(message, getAccessForSync());
 866         } catch (UntrustedIdentityException e) {
 867             account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
 868             throw e;
 869         }
 870     }
 871
 872     /**
 873      * This method throws an EncapsulatedExceptions exception instead of returning a list of SendMessageResult.
 874      */
 875     private void sendMessageLegacy(SignalServiceDataMessage.Builder messageBuilder, Collection<String> recipients)
 876             throws EncapsulatedExceptions, IOException {
 877         List<SendMessageResult> results = sendMessage(messageBuilder, recipients);
 878
 879         List<UntrustedIdentityException> untrustedIdentities = new LinkedList<>();
 880         List<UnregisteredUserException> unregisteredUsers = new LinkedList<>();
 881         List<NetworkFailureException> networkExceptions = new LinkedList<>();
 882
 883         for (SendMessageResult result : results) {
 884             if (result.isUnregisteredFailure()) {
 885                 unregisteredUsers.add(new UnregisteredUserException(result.getAddress().getNumber().get(), null));
 886             } else if (result.isNetworkFailure()) {
 887                 networkExceptions.add(new NetworkFailureException(result.getAddress().getNumber().get(), null));
 888             } else if (result.getIdentityFailure() != null) {
 889                 untrustedIdentities.add(new UntrustedIdentityException("Untrusted", result.getAddress().getNumber().get(), result.getIdentityFailure().getIdentityKey()));
 890             }
 891         }
 892         if (!untrustedIdentities.isEmpty() || !unregisteredUsers.isEmpty() || !networkExceptions.isEmpty()) {
 893             throw new EncapsulatedExceptions(untrustedIdentities, unregisteredUsers, networkExceptions);
 894         }
 895     }
 896
 897     private List<SendMessageResult> sendMessage(SignalServiceDataMessage.Builder messageBuilder, Collection<String> recipients)
 898             throws IOException {
 899         Set<SignalServiceAddress> recipientsTS = Utils.getSignalServiceAddresses(recipients, username);
 900         if (recipientsTS == null) {
 901             account.save();
 902             return Collections.emptyList();
 903         }
 904
 905         SignalServiceDataMessage message = null;
 906         try {
 907             SignalServiceMessageSender messageSender = getMessageSender();
 908
 909             message = messageBuilder.build();
 910             if (message.getGroupInfo().isPresent()) {
 911                 try {
 912                     final boolean isRecipientUpdate = false;
 913                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipientsTS), getAccessFor(recipientsTS), isRecipientUpdate, message);
 914                     for (SendMessageResult r : result) {
 915                         if (r.getIdentityFailure() != null) {
 916                             account.getSignalProtocolStore().saveIdentity(r.getAddress().getNumber().get(), r.getIdentityFailure().getIdentityKey(), TrustLevel.UNTRUSTED);
 917                         }
 918                     }
 919                     return result;
 920                 } catch (UntrustedIdentityException e) {
 921                     account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
 922                     return Collections.emptyList();
 923                 }
 924             } else if (recipientsTS.size() == 1 && recipientsTS.contains(getSelfAddress())) {
 925                 SignalServiceAddress recipient = getSelfAddress();
 926                 final Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
 927                 SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
 928                         message.getTimestamp(),
 929                         message,
 930                         message.getExpiresInSeconds(),
 931                         Collections.singletonMap(recipient, unidentifiedAccess.isPresent()),
 932                         false);
 933                 SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
 934
 935                 List<SendMessageResult> results = new ArrayList<>(recipientsTS.size());
 936                 try {
 937                     messageSender.sendMessage(syncMessage, unidentifiedAccess);
 938                 } catch (UntrustedIdentityException e) {
 939                     account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
 940                     results.add(SendMessageResult.identityFailure(recipient, e.getIdentityKey()));
 941                 }
 942                 return results;
 943             } else {
 944                 // Send to all individually, so sync messages are sent correctly
 945                 List<SendMessageResult> results = new ArrayList<>(recipientsTS.size());
 946                 for (SignalServiceAddress address : recipientsTS) {
 947                     ThreadInfo thread = account.getThreadStore().getThread(address.getNumber().get());
 948                     if (thread != null) {
 949                         messageBuilder.withExpiration(thread.messageExpirationTime);
 950                     } else {
 951                         messageBuilder.withExpiration(0);
 952                     }
 953                     message = messageBuilder.build();
 954                     try {
 955                         SendMessageResult result = messageSender.sendMessage(address, getAccessFor(address), message);
 956                         results.add(result);
 957                     } catch (UntrustedIdentityException e) {
 958                         account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
 959                         results.add(SendMessageResult.identityFailure(address, e.getIdentityKey()));
 960                     }
 961                 }
 962                 return results;
 963             }
 964         } finally {
 965             if (message != null && message.isEndSession()) {
 966                 for (SignalServiceAddress recipient : recipientsTS) {
 967                     handleEndSession(recipient.getNumber().get());
 968                 }
 969             }
 970             account.save();
 971         }
 972     }
 973
 974     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, ProtocolUntrustedIdentityException, SelfSendException, UnsupportedDataMessageException {
 975         SignalServiceCipher cipher = new SignalServiceCipher(getSelfAddress(), account.getSignalProtocolStore(), Utils.getCertificateValidator());
 976         try {
 977             return cipher.decrypt(envelope);
 978         } catch (ProtocolUntrustedIdentityException e) {
 979             // TODO We don't get the new untrusted identity from ProtocolUntrustedIdentityException anymore ... we need to get it from somewhere else
 980 //            account.getSignalProtocolStore().saveIdentity(e.getSender(), e.getUntrustedIdentity(), TrustLevel.UNTRUSTED);
 981             throw e;
 982         }
 983     }
 984
 985     private void handleEndSession(String source) {
 986         account.getSignalProtocolStore().deleteAllSessions(source);
 987     }
 988
 989     private void handleSignalServiceDataMessage(SignalServiceDataMessage message, boolean isSync, String source, SignalServiceAddress destination, boolean ignoreAttachments) {
 990         String threadId;
 991         if (message.getGroupInfo().isPresent()) {
 992             SignalServiceGroup groupInfo = message.getGroupInfo().get();
 993             threadId = Base64.encodeBytes(groupInfo.getGroupId());
 994             GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
 995             switch (groupInfo.getType()) {
 996                 case UPDATE:
 997                     if (group == null) {
 998                         group = new GroupInfo(groupInfo.getGroupId());
 999                     }
1000
1001                     if (groupInfo.getAvatar().isPresent()) {
1002                         SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1003                         if (avatar.isPointer()) {
1004                             try {
1005                                 retrieveGroupAvatarAttachment(avatar.asPointer(), group.groupId);
1006                             } catch (IOException | InvalidMessageException e) {
1007                                 System.err.println("Failed to retrieve group avatar (" + avatar.asPointer().getId() + "): " + e.getMessage());
1008                             }
1009                         }
1010                     }
1011
1012                     if (groupInfo.getName().isPresent()) {
1013                         group.name = groupInfo.getName().get();
1014                     }
1015
1016                     if (groupInfo.getMembers().isPresent()) {
1017                         group.addMembers(groupInfo.getMembers().get());
1018                     }
1019
1020                     account.getGroupStore().updateGroup(group);
1021                     break;
1022                 case DELIVER:
1023                     if (group == null) {
1024                         try {
1025                             sendGroupInfoRequest(groupInfo.getGroupId(), source);
1026                         } catch (IOException | EncapsulatedExceptions e) {
1027                             e.printStackTrace();
1028                         }
1029                     }
1030                     break;
1031                 case QUIT:
1032                     if (group == null) {
1033                         try {
1034                             sendGroupInfoRequest(groupInfo.getGroupId(), source);
1035                         } catch (IOException | EncapsulatedExceptions e) {
1036                             e.printStackTrace();
1037                         }
1038                     } else {
1039                         group.members.remove(source);
1040                         account.getGroupStore().updateGroup(group);
1041                     }
1042                     break;
1043                 case REQUEST_INFO:
1044                     if (group != null) {
1045                         try {
1046                             sendUpdateGroupMessage(groupInfo.getGroupId(), source);
1047                         } catch (IOException | EncapsulatedExceptions e) {
1048                             e.printStackTrace();
1049                         } catch (NotAGroupMemberException e) {
1050                             // We have left this group, so don't send a group update message
1051                         }
1052                     }
1053                     break;
1054             }
1055         } else {
1056             if (isSync) {
1057                 threadId = destination.getNumber().get();
1058             } else {
1059                 threadId = source;
1060             }
1061         }
1062         if (message.isEndSession()) {
1063             handleEndSession(isSync ? destination.getNumber().get() : source);
1064         }
1065         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1066             ThreadInfo thread = account.getThreadStore().getThread(threadId);
1067             if (thread == null) {
1068                 thread = new ThreadInfo();
1069                 thread.id = threadId;
1070             }
1071             if (thread.messageExpirationTime != message.getExpiresInSeconds()) {
1072                 thread.messageExpirationTime = message.getExpiresInSeconds();
1073                 account.getThreadStore().updateThread(thread);
1074             }
1075         }
1076         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1077             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1078                 if (attachment.isPointer()) {
1079                     try {
1080                         retrieveAttachment(attachment.asPointer());
1081                     } catch (IOException | InvalidMessageException e) {
1082                         System.err.println("Failed to retrieve attachment (" + attachment.asPointer().getId() + "): " + e.getMessage());
1083                     }
1084                 }
1085             }
1086         }
1087         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1088             if (source.equals(username)) {
1089                 this.account.setProfileKey(message.getProfileKey().get());
1090             }
1091             ContactInfo contact = account.getContactStore().getContact(source);
1092             if (contact == null) {
1093                 contact = new ContactInfo();
1094                 contact.number = source;
1095             }
1096             contact.profileKey = Base64.encodeBytes(message.getProfileKey().get());
1097         }
1098         if (message.getPreviews().isPresent()) {
1099             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1100             for (SignalServiceDataMessage.Preview preview : previews) {
1101                 if (preview.getImage().isPresent() && preview.getImage().get().isPointer()) {
1102                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
1103                     try {
1104                         retrieveAttachment(attachment);
1105                     } catch (IOException | InvalidMessageException e) {
1106                         System.err.println("Failed to retrieve attachment (" + attachment.getId() + "): " + e.getMessage());
1107                     }
1108                 }
1109             }
1110         }
1111     }
1112
1113     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1114         final File cachePath = new File(getMessageCachePath());
1115         if (!cachePath.exists()) {
1116             return;
1117         }
1118         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
1119             if (!dir.isDirectory()) {
1120                 continue;
1121             }
1122
1123             for (final File fileEntry : Objects.requireNonNull(dir.listFiles())) {
1124                 if (!fileEntry.isFile()) {
1125                     continue;
1126                 }
1127                 SignalServiceEnvelope envelope;
1128                 try {
1129                     envelope = Utils.loadEnvelope(fileEntry);
1130                     if (envelope == null) {
1131                         continue;
1132                     }
1133                 } catch (IOException e) {
1134                     e.printStackTrace();
1135                     continue;
1136                 }
1137                 SignalServiceContent content = null;
1138                 if (!envelope.isReceipt()) {
1139                     try {
1140                         content = decryptMessage(envelope);
1141                     } catch (Exception e) {
1142                         continue;
1143                     }
1144                     handleMessage(envelope, content, ignoreAttachments);
1145                 }
1146                 account.save();
1147                 handler.handleMessage(envelope, content, null);
1148                 try {
1149                     Files.delete(fileEntry.toPath());
1150                 } catch (IOException e) {
1151                     System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1152                 }
1153             }
1154             // Try to delete directory if empty
1155             dir.delete();
1156         }
1157     }
1158
1159     public void receiveMessages(long timeout, TimeUnit unit, boolean returnOnTimeout, boolean ignoreAttachments, ReceiveMessageHandler handler) throws IOException {
1160         retryFailedReceivedMessages(handler, ignoreAttachments);
1161         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1162
1163         try {
1164             if (messagePipe == null) {
1165                 messagePipe = messageReceiver.createMessagePipe();
1166             }
1167
1168             while (true) {
1169                 SignalServiceEnvelope envelope;
1170                 SignalServiceContent content = null;
1171                 Exception exception = null;
1172                 final long now = new Date().getTime();
1173                 try {
1174                     envelope = messagePipe.read(timeout, unit, new SignalServiceMessagePipe.MessagePipeCallback() {
1175                         @Override
1176                         public void onMessage(SignalServiceEnvelope envelope) {
1177                             // store message on disk, before acknowledging receipt to the server
1178                             try {
1179                                 File cacheFile = getMessageCacheFile(envelope.getSourceE164().get(), now, envelope.getTimestamp());
1180                                 Utils.storeEnvelope(envelope, cacheFile);
1181                             } catch (IOException e) {
1182                                 System.err.println("Failed to store encrypted message in disk cache, ignoring: " + e.getMessage());
1183                             }
1184                         }
1185                     });
1186                 } catch (TimeoutException e) {
1187                     if (returnOnTimeout)
1188                         return;
1189                     continue;
1190                 } catch (InvalidVersionException e) {
1191                     System.err.println("Ignoring error: " + e.getMessage());
1192                     continue;
1193                 }
1194                 if (!envelope.isReceipt()) {
1195                     try {
1196                         content = decryptMessage(envelope);
1197                     } catch (Exception e) {
1198                         exception = e;
1199                     }
1200                     handleMessage(envelope, content, ignoreAttachments);
1201                 }
1202                 account.save();
1203                 if (!isMessageBlocked(envelope, content)) {
1204                     handler.handleMessage(envelope, content, exception);
1205                 }
1206                 if (!(exception instanceof ProtocolUntrustedIdentityException)) {
1207                     File cacheFile = null;
1208                     try {
1209                         cacheFile = getMessageCacheFile(envelope.getSourceE164().get(), now, envelope.getTimestamp());
1210                         Files.delete(cacheFile.toPath());
1211                         // Try to delete directory if empty
1212                         new File(getMessageCachePath()).delete();
1213                     } catch (IOException e) {
1214                         System.err.println("Failed to delete cached message file “" + cacheFile + "”: " + e.getMessage());
1215                     }
1216                 }
1217             }
1218         } finally {
1219             if (messagePipe != null) {
1220                 messagePipe.shutdown();
1221                 messagePipe = null;
1222             }
1223         }
1224     }
1225
1226     private boolean isMessageBlocked(SignalServiceEnvelope envelope, SignalServiceContent content) {
1227         SignalServiceAddress source;
1228         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1229             source = envelope.getSourceAddress();
1230         } else if (content != null) {
1231             source = content.getSender();
1232         } else {
1233             return false;
1234         }
1235         ContactInfo sourceContact = getContact(source.getNumber().get());
1236         if (sourceContact != null && sourceContact.blocked) {
1237             return true;
1238         }
1239
1240         if (content != null && content.getDataMessage().isPresent()) {
1241             SignalServiceDataMessage message = content.getDataMessage().get();
1242             if (message.getGroupInfo().isPresent()) {
1243                 SignalServiceGroup groupInfo = message.getGroupInfo().get();
1244                 GroupInfo group = getGroup(groupInfo.getGroupId());
1245                 if (groupInfo.getType() == SignalServiceGroup.Type.DELIVER && group != null && group.blocked) {
1246                     return true;
1247                 }
1248             }
1249         }
1250         return false;
1251     }
1252
1253     private void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments) {
1254         if (content != null) {
1255             SignalServiceAddress sender;
1256             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1257                 sender = envelope.getSourceAddress();
1258             } else {
1259                 sender = content.getSender();
1260             }
1261             if (content.getDataMessage().isPresent()) {
1262                 SignalServiceDataMessage message = content.getDataMessage().get();
1263                 handleSignalServiceDataMessage(message, false, sender.getNumber().get(), getSelfAddress(), ignoreAttachments);
1264             }
1265             if (content.getSyncMessage().isPresent()) {
1266                 account.setMultiDevice(true);
1267                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1268                 if (syncMessage.getSent().isPresent()) {
1269                     SentTranscriptMessage message = syncMessage.getSent().get();
1270                     handleSignalServiceDataMessage(message.getMessage(), true, sender.getNumber().get(), message.getDestination().orNull(), ignoreAttachments);
1271                 }
1272                 if (syncMessage.getRequest().isPresent()) {
1273                     RequestMessage rm = syncMessage.getRequest().get();
1274                     if (rm.isContactsRequest()) {
1275                         try {
1276                             sendContacts();
1277                         } catch (UntrustedIdentityException | IOException e) {
1278                             e.printStackTrace();
1279                         }
1280                     }
1281                     if (rm.isGroupsRequest()) {
1282                         try {
1283                             sendGroups();
1284                         } catch (UntrustedIdentityException | IOException e) {
1285                             e.printStackTrace();
1286                         }
1287                     }
1288                     if (rm.isBlockedListRequest()) {
1289                         try {
1290                             sendBlockedList();
1291                         } catch (UntrustedIdentityException | IOException e) {
1292                             e.printStackTrace();
1293                         }
1294                     }
1295                     // TODO Handle rm.isConfigurationRequest();
1296                 }
1297                 if (syncMessage.getGroups().isPresent()) {
1298                     File tmpFile = null;
1299                     try {
1300                         tmpFile = IOUtils.createTempFile();
1301                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups().get().asPointer(), tmpFile)) {
1302                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1303                             DeviceGroup g;
1304                             while ((g = s.read()) != null) {
1305                                 GroupInfo syncGroup = account.getGroupStore().getGroup(g.getId());
1306                                 if (syncGroup == null) {
1307                                     syncGroup = new GroupInfo(g.getId());
1308                                 }
1309                                 if (g.getName().isPresent()) {
1310                                     syncGroup.name = g.getName().get();
1311                                 }
1312                                 syncGroup.addMembers(g.getMembers());
1313                                 syncGroup.active = g.isActive();
1314                                 syncGroup.blocked = g.isBlocked();
1315                                 if (g.getColor().isPresent()) {
1316                                     syncGroup.color = g.getColor().get();
1317                                 }
1318
1319                                 if (g.getAvatar().isPresent()) {
1320                                     retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId);
1321                                 }
1322                                 account.getGroupStore().updateGroup(syncGroup);
1323                             }
1324                         }
1325                     } catch (Exception e) {
1326                         e.printStackTrace();
1327                     } finally {
1328                         if (tmpFile != null) {
1329                             try {
1330                                 Files.delete(tmpFile.toPath());
1331                             } catch (IOException e) {
1332                                 System.err.println("Failed to delete received groups temp file “" + tmpFile + "”: " + e.getMessage());
1333                             }
1334                         }
1335                     }
1336                 }
1337                 if (syncMessage.getBlockedList().isPresent()) {
1338                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1339                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1340                         if (address.getNumber().isPresent()) {
1341                             try {
1342                                 setContactBlocked(address.getNumber().get(), true);
1343                             } catch (InvalidNumberException e) {
1344                                 e.printStackTrace();
1345                             }
1346                         }
1347                     }
1348                     for (byte[] groupId : blockedListMessage.getGroupIds()) {
1349                         try {
1350                             setGroupBlocked(groupId, true);
1351                         } catch (GroupNotFoundException e) {
1352                             System.err.println("BlockedListMessage contained groupID that was not found in GroupStore: " + Base64.encodeBytes(groupId));
1353                         }
1354                     }
1355                 }
1356                 if (syncMessage.getContacts().isPresent()) {
1357                     File tmpFile = null;
1358                     try {
1359                         tmpFile = IOUtils.createTempFile();
1360                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1361                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream().asPointer(), tmpFile)) {
1362                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1363                             if (contactsMessage.isComplete()) {
1364                                 account.getContactStore().clear();
1365                             }
1366                             DeviceContact c;
1367                             while ((c = s.read()) != null) {
1368                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
1369                                     account.setProfileKey(c.getProfileKey().get());
1370                                 }
1371                                 ContactInfo contact = account.getContactStore().getContact(c.getAddress().getNumber().get());
1372                                 if (contact == null) {
1373                                     contact = new ContactInfo();
1374                                     contact.number = c.getAddress().getNumber().get();
1375                                 }
1376                                 if (c.getName().isPresent()) {
1377                                     contact.name = c.getName().get();
1378                                 }
1379                                 if (c.getColor().isPresent()) {
1380                                     contact.color = c.getColor().get();
1381                                 }
1382                                 if (c.getProfileKey().isPresent()) {
1383                                     contact.profileKey = Base64.encodeBytes(c.getProfileKey().get());
1384                                 }
1385                                 if (c.getVerified().isPresent()) {
1386                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
1387                                     account.getSignalProtocolStore().saveIdentity(verifiedMessage.getDestination().getNumber().get(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1388                                 }
1389                                 if (c.getExpirationTimer().isPresent()) {
1390                                     ThreadInfo thread = account.getThreadStore().getThread(c.getAddress().getNumber().get());
1391                                     if (thread == null) {
1392                                         thread = new ThreadInfo();
1393                                         thread.id = c.getAddress().getNumber().get();
1394                                     }
1395                                     thread.messageExpirationTime = c.getExpirationTimer().get();
1396                                     account.getThreadStore().updateThread(thread);
1397                                 }
1398                                 contact.blocked = c.isBlocked();
1399                                 account.getContactStore().updateContact(contact);
1400
1401                                 if (c.getAvatar().isPresent()) {
1402                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
1403                                 }
1404                             }
1405                         }
1406                     } catch (Exception e) {
1407                         e.printStackTrace();
1408                     } finally {
1409                         if (tmpFile != null) {
1410                             try {
1411                                 Files.delete(tmpFile.toPath());
1412                             } catch (IOException e) {
1413                                 System.err.println("Failed to delete received contacts temp file “" + tmpFile + "”: " + e.getMessage());
1414                             }
1415                         }
1416                     }
1417                 }
1418                 if (syncMessage.getVerified().isPresent()) {
1419                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
1420                     account.getSignalProtocolStore().saveIdentity(verifiedMessage.getDestination().getNumber().get(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1421                 }
1422                 if (syncMessage.getConfiguration().isPresent()) {
1423                     // TODO
1424                 }
1425             }
1426         }
1427     }
1428
1429     private File getContactAvatarFile(String number) {
1430         return new File(avatarsPath, "contact-" + number);
1431     }
1432
1433     private File retrieveContactAvatarAttachment(SignalServiceAttachment attachment, String number) throws IOException, InvalidMessageException {
1434         IOUtils.createPrivateDirectories(avatarsPath);
1435         if (attachment.isPointer()) {
1436             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1437             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
1438         } else {
1439             SignalServiceAttachmentStream stream = attachment.asStream();
1440             return Utils.retrieveAttachment(stream, getContactAvatarFile(number));
1441         }
1442     }
1443
1444     private File getGroupAvatarFile(byte[] groupId) {
1445         return new File(avatarsPath, "group-" + Base64.encodeBytes(groupId).replace("/", "_"));
1446     }
1447
1448     private File retrieveGroupAvatarAttachment(SignalServiceAttachment attachment, byte[] groupId) throws IOException, InvalidMessageException {
1449         IOUtils.createPrivateDirectories(avatarsPath);
1450         if (attachment.isPointer()) {
1451             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1452             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
1453         } else {
1454             SignalServiceAttachmentStream stream = attachment.asStream();
1455             return Utils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
1456         }
1457     }
1458
1459     public File getAttachmentFile(long attachmentId) {
1460         return new File(attachmentsPath, attachmentId + "");
1461     }
1462
1463     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException {
1464         IOUtils.createPrivateDirectories(attachmentsPath);
1465         return retrieveAttachment(pointer, getAttachmentFile(pointer.getId()), true);
1466     }
1467
1468     private File retrieveAttachment(SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview) throws IOException, InvalidMessageException {
1469         if (storePreview && pointer.getPreview().isPresent()) {
1470             File previewFile = new File(outputFile + ".preview");
1471             try (OutputStream output = new FileOutputStream(previewFile)) {
1472                 byte[] preview = pointer.getPreview().get();
1473                 output.write(preview, 0, preview.length);
1474             } catch (FileNotFoundException e) {
1475                 e.printStackTrace();
1476                 return null;
1477             }
1478         }
1479
1480         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1481
1482         File tmpFile = IOUtils.createTempFile();
1483         try (InputStream input = messageReceiver.retrieveAttachment(pointer, tmpFile, BaseConfig.MAX_ATTACHMENT_SIZE)) {
1484             try (OutputStream output = new FileOutputStream(outputFile)) {
1485                 byte[] buffer = new byte[4096];
1486                 int read;
1487
1488                 while ((read = input.read(buffer)) != -1) {
1489                     output.write(buffer, 0, read);
1490                 }
1491             } catch (FileNotFoundException e) {
1492                 e.printStackTrace();
1493                 return null;
1494             }
1495         } finally {
1496             try {
1497                 Files.delete(tmpFile.toPath());
1498             } catch (IOException e) {
1499                 System.err.println("Failed to delete received attachment temp file “" + tmpFile + "”: " + e.getMessage());
1500             }
1501         }
1502         return outputFile;
1503     }
1504
1505     private InputStream retrieveAttachmentAsStream(SignalServiceAttachmentPointer pointer, File tmpFile) throws IOException, InvalidMessageException {
1506         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1507         return messageReceiver.retrieveAttachment(pointer, tmpFile, BaseConfig.MAX_ATTACHMENT_SIZE);
1508     }
1509
1510     @Override
1511     public boolean isRemote() {
1512         return false;
1513     }
1514
1515     private void sendGroups() throws IOException, UntrustedIdentityException {
1516         File groupsFile = IOUtils.createTempFile();
1517
1518         try {
1519             try (OutputStream fos = new FileOutputStream(groupsFile)) {
1520                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
1521                 for (GroupInfo record : account.getGroupStore().getGroups()) {
1522                     ThreadInfo info = account.getThreadStore().getThread(Base64.encodeBytes(record.groupId));
1523                     out.write(new DeviceGroup(record.groupId, Optional.fromNullable(record.name),
1524                             new ArrayList<>(record.getMembers()), createGroupAvatarAttachment(record.groupId),
1525                             record.active, Optional.fromNullable(info != null ? info.messageExpirationTime : null),
1526                             Optional.fromNullable(record.color), record.blocked));
1527                 }
1528             }
1529
1530             if (groupsFile.exists() && groupsFile.length() > 0) {
1531                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
1532                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1533                             .withStream(groupsFileStream)
1534                             .withContentType("application/octet-stream")
1535                             .withLength(groupsFile.length())
1536                             .build();
1537
1538                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
1539                 }
1540             }
1541         } finally {
1542             try {
1543                 Files.delete(groupsFile.toPath());
1544             } catch (IOException e) {
1545                 System.err.println("Failed to delete groups temp file “" + groupsFile + "”: " + e.getMessage());
1546             }
1547         }
1548     }
1549
1550     public void sendContacts() throws IOException, UntrustedIdentityException {
1551         File contactsFile = IOUtils.createTempFile();
1552
1553         try {
1554             try (OutputStream fos = new FileOutputStream(contactsFile)) {
1555                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
1556                 for (ContactInfo record : account.getContactStore().getContacts()) {
1557                     VerifiedMessage verifiedMessage = null;
1558                     ThreadInfo info = account.getThreadStore().getThread(record.number);
1559                     if (getIdentities().containsKey(record.number)) {
1560                         JsonIdentityKeyStore.Identity currentIdentity = null;
1561                         for (JsonIdentityKeyStore.Identity id : getIdentities().get(record.number)) {
1562                             if (currentIdentity == null || id.getDateAdded().after(currentIdentity.getDateAdded())) {
1563                                 currentIdentity = id;
1564                             }
1565                         }
1566                         if (currentIdentity != null) {
1567                             verifiedMessage = new VerifiedMessage(record.getAddress(), currentIdentity.getIdentityKey(), currentIdentity.getTrustLevel().toVerifiedState(), currentIdentity.getDateAdded().getTime());
1568                         }
1569                     }
1570
1571                     byte[] profileKey = record.profileKey == null ? null : Base64.decode(record.profileKey);
1572                     out.write(new DeviceContact(record.getAddress(), Optional.fromNullable(record.name),
1573                             createContactAvatarAttachment(record.number), Optional.fromNullable(record.color),
1574                             Optional.fromNullable(verifiedMessage), Optional.fromNullable(profileKey), record.blocked,
1575                             Optional.fromNullable(info != null ? info.messageExpirationTime : null)));
1576                 }
1577
1578                 if (account.getProfileKey() != null) {
1579                     // Send our own profile key as well
1580                     out.write(new DeviceContact(account.getSelfAddress(),
1581                             Optional.<String>absent(), Optional.<SignalServiceAttachmentStream>absent(),
1582                             Optional.<String>absent(), Optional.<VerifiedMessage>absent(),
1583                             Optional.of(account.getProfileKey()),
1584                             false, Optional.<Integer>absent()));
1585                 }
1586             }
1587
1588             if (contactsFile.exists() && contactsFile.length() > 0) {
1589                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
1590                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1591                             .withStream(contactsFileStream)
1592                             .withContentType("application/octet-stream")
1593                             .withLength(contactsFile.length())
1594                             .build();
1595
1596                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
1597                 }
1598             }
1599         } finally {
1600             try {
1601                 Files.delete(contactsFile.toPath());
1602             } catch (IOException e) {
1603                 System.err.println("Failed to delete contacts temp file “" + contactsFile + "”: " + e.getMessage());
1604             }
1605         }
1606     }
1607
1608     private void sendBlockedList() throws IOException, UntrustedIdentityException {
1609         List<SignalServiceAddress> addresses = new ArrayList<>();
1610         for (ContactInfo record : account.getContactStore().getContacts()) {
1611             if (record.blocked) {
1612                 addresses.add(record.getAddress());
1613             }
1614         }
1615         List<byte[]> groupIds = new ArrayList<>();
1616         for (GroupInfo record : account.getGroupStore().getGroups()) {
1617             if (record.blocked) {
1618                 groupIds.add(record.groupId);
1619             }
1620         }
1621         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
1622     }
1623
1624     private void sendVerifiedMessage(SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel) throws IOException, UntrustedIdentityException {
1625         VerifiedMessage verifiedMessage = new VerifiedMessage(destination, identityKey, trustLevel.toVerifiedState(), System.currentTimeMillis());
1626         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
1627     }
1628
1629     public List<ContactInfo> getContacts() {
1630         return account.getContactStore().getContacts();
1631     }
1632
1633     public ContactInfo getContact(String number) {
1634         return account.getContactStore().getContact(number);
1635     }
1636
1637     public GroupInfo getGroup(byte[] groupId) {
1638         return account.getGroupStore().getGroup(groupId);
1639     }
1640
1641     public Map<String, List<JsonIdentityKeyStore.Identity>> getIdentities() {
1642         return account.getSignalProtocolStore().getIdentities();
1643     }
1644
1645     public Pair<String, List<JsonIdentityKeyStore.Identity>> getIdentities(String number) throws InvalidNumberException {
1646         String canonicalizedNumber = Utils.canonicalizeNumber(number, username);
1647         return new Pair<>(canonicalizedNumber, account.getSignalProtocolStore().getIdentities(canonicalizedNumber));
1648     }
1649
1650     /**
1651      * Trust this the identity with this fingerprint
1652      *
1653      * @param name        username of the identity
1654      * @param fingerprint Fingerprint
1655      */
1656     public boolean trustIdentityVerified(String name, byte[] fingerprint) {
1657         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(name);
1658         if (ids == null) {
1659             return false;
1660         }
1661         for (JsonIdentityKeyStore.Identity id : ids) {
1662             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
1663                 continue;
1664             }
1665
1666             account.getSignalProtocolStore().saveIdentity(name, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1667             try {
1668                 sendVerifiedMessage(new SignalServiceAddress(null, name), id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1669             } catch (IOException | UntrustedIdentityException e) {
1670                 e.printStackTrace();
1671             }
1672             account.save();
1673             return true;
1674         }
1675         return false;
1676     }
1677
1678     /**
1679      * Trust this the identity with this safety number
1680      *
1681      * @param name         username of the identity
1682      * @param safetyNumber Safety number
1683      */
1684     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) {
1685         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(name);
1686         if (ids == null) {
1687             return false;
1688         }
1689         for (JsonIdentityKeyStore.Identity id : ids) {
1690             if (!safetyNumber.equals(computeSafetyNumber(name, id.getIdentityKey()))) {
1691                 continue;
1692             }
1693
1694             account.getSignalProtocolStore().saveIdentity(name, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1695             try {
1696                 sendVerifiedMessage(new SignalServiceAddress(null, name), id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1697             } catch (IOException | UntrustedIdentityException e) {
1698                 e.printStackTrace();
1699             }
1700             account.save();
1701             return true;
1702         }
1703         return false;
1704     }
1705
1706     /**
1707      * Trust all keys of this identity without verification
1708      *
1709      * @param name username of the identity
1710      */
1711     public boolean trustIdentityAllKeys(String name) {
1712         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(name);
1713         if (ids == null) {
1714             return false;
1715         }
1716         for (JsonIdentityKeyStore.Identity id : ids) {
1717             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
1718                 account.getSignalProtocolStore().saveIdentity(name, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
1719                 try {
1720                     sendVerifiedMessage(new SignalServiceAddress(null, name), id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
1721                 } catch (IOException | UntrustedIdentityException e) {
1722                     e.printStackTrace();
1723                 }
1724             }
1725         }
1726         account.save();
1727         return true;
1728     }
1729
1730     public String computeSafetyNumber(String theirUsername, IdentityKey theirIdentityKey) {
1731         return Utils.computeSafetyNumber(username, getIdentity(), theirUsername, theirIdentityKey);
1732     }
1733
1734     public interface ReceiveMessageHandler {
1735
1736         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
1737     }
1738 }