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 com.fasterxml.jackson.databind.ObjectMapper;
  20
  21 import org.asamk.signal.storage.SignalAccount;
  22 import org.asamk.signal.storage.contacts.ContactInfo;
  23 import org.asamk.signal.storage.groups.GroupInfo;
  24 import org.asamk.signal.storage.groups.JsonGroupStore;
  25 import org.asamk.signal.storage.profiles.SignalProfile;
  26 import org.asamk.signal.storage.profiles.SignalProfileEntry;
  27 import org.asamk.signal.storage.protocol.JsonIdentityKeyStore;
  28 import org.asamk.signal.util.IOUtils;
  29 import org.asamk.signal.util.Util;
  30 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  31 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  32 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  33 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  34 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  35 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  36 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  37 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  38 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  39 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  40 import org.signal.libsignal.metadata.SelfSendException;
  41 import org.signal.libsignal.metadata.certificate.InvalidCertificateException;
  42 import org.signal.zkgroup.InvalidInputException;
  43 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  44 import org.signal.zkgroup.profiles.ProfileKey;
  45 import org.whispersystems.libsignal.IdentityKey;
  46 import org.whispersystems.libsignal.IdentityKeyPair;
  47 import org.whispersystems.libsignal.InvalidKeyException;
  48 import org.whispersystems.libsignal.InvalidMessageException;
  49 import org.whispersystems.libsignal.InvalidVersionException;
  50 import org.whispersystems.libsignal.ecc.Curve;
  51 import org.whispersystems.libsignal.ecc.ECKeyPair;
  52 import org.whispersystems.libsignal.ecc.ECPublicKey;
  53 import org.whispersystems.libsignal.state.PreKeyRecord;
  54 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  55 import org.whispersystems.libsignal.util.KeyHelper;
  56 import org.whispersystems.libsignal.util.Medium;
  57 import org.whispersystems.libsignal.util.Pair;
  58 import org.whispersystems.libsignal.util.guava.Optional;
  59 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  60 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  61 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  62 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  63 import org.whispersystems.signalservice.api.crypto.InvalidCiphertextException;
  64 import org.whispersystems.signalservice.api.crypto.ProfileCipher;
  65 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  66 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccess;
  67 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
  68 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  69 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  70 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  71 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  72 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
  73 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
  74 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
  75 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  76 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
  77 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
  78 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
  79 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload;
  80 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload.StickerInfo;
  81 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
  82 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
  83 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
  84 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
  85 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
  86 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
  87 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
  88 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
  89 import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
  90 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
  91 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
  92 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
  93 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
  94 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
  95 import org.whispersystems.signalservice.api.push.ContactTokenDetails;
  96 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  97 import org.whispersystems.signalservice.api.push.exceptions.EncapsulatedExceptions;
  98 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
  99 import org.whispersystems.signalservice.api.push.exceptions.NetworkFailureException;
 100 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 101 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 102 import org.whispersystems.signalservice.api.util.SleepTimer;
 103 import org.whispersystems.signalservice.api.util.StreamDetails;
 104 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 105 import org.whispersystems.signalservice.api.util.UuidUtil;
 106 import org.whispersystems.signalservice.internal.configuration.SignalServiceConfiguration;
 107 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 108 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 109 import org.whispersystems.signalservice.internal.push.VerifyAccountResponse;
 110 import org.whispersystems.signalservice.internal.util.Hex;
 111 import org.whispersystems.util.Base64;
 112
 113 import java.io.Closeable;
 114 import java.io.File;
 115 import java.io.FileInputStream;
 116 import java.io.FileNotFoundException;
 117 import java.io.FileOutputStream;
 118 import java.io.IOException;
 119 import java.io.InputStream;
 120 import java.io.OutputStream;
 121 import java.net.URI;
 122 import java.net.URISyntaxException;
 123 import java.net.URLEncoder;
 124 import java.nio.file.Files;
 125 import java.nio.file.Paths;
 126 import java.nio.file.StandardCopyOption;
 127 import java.util.ArrayList;
 128 import java.util.Arrays;
 129 import java.util.Collection;
 130 import java.util.Collections;
 131 import java.util.Date;
 132 import java.util.HashSet;
 133 import java.util.LinkedList;
 134 import java.util.List;
 135 import java.util.Locale;
 136 import java.util.Objects;
 137 import java.util.Set;
 138 import java.util.UUID;
 139 import java.util.concurrent.ExecutionException;
 140 import java.util.concurrent.ExecutorService;
 141 import java.util.concurrent.TimeUnit;
 142 import java.util.concurrent.TimeoutException;
 143 import java.util.stream.Collectors;
 144 import java.util.zip.ZipEntry;
 145 import java.util.zip.ZipFile;
 146
 147 import static org.asamk.signal.manager.ServiceConfig.capabilities;
 148
 149 public class Manager implements Closeable {
 150
 151     private final SleepTimer timer = new UptimeSleepTimer();
 152     private final SignalServiceConfiguration serviceConfiguration;
 153     private final String userAgent;
 154
 155     private final SignalAccount account;
 156     private final PathConfig pathConfig;
 157     private SignalServiceAccountManager accountManager;
 158     private SignalServiceMessagePipe messagePipe = null;
 159     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 160     private boolean discoverableByPhoneNumber = true;
 161
 162     public Manager(SignalAccount account, PathConfig pathConfig, SignalServiceConfiguration serviceConfiguration, String userAgent) {
 163         this.account = account;
 164         this.pathConfig = pathConfig;
 165         this.serviceConfiguration = serviceConfiguration;
 166         this.userAgent = userAgent;
 167         this.accountManager = createSignalServiceAccountManager();
 168
 169         this.account.setResolver(this::resolveSignalServiceAddress);
 170     }
 171
 172     public String getUsername() {
 173         return account.getUsername();
 174     }
 175
 176     public SignalServiceAddress getSelfAddress() {
 177         return account.getSelfAddress();
 178     }
 179
 180     private SignalServiceAccountManager createSignalServiceAccountManager() {
 181         return new SignalServiceAccountManager(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(), account.getDeviceId(), userAgent, timer);
 182     }
 183
 184     private IdentityKeyPair getIdentityKeyPair() {
 185         return account.getSignalProtocolStore().getIdentityKeyPair();
 186     }
 187
 188     public int getDeviceId() {
 189         return account.getDeviceId();
 190     }
 191
 192     private String getMessageCachePath() {
 193         return pathConfig.getDataPath() + "/" + account.getUsername() + ".d/msg-cache";
 194     }
 195
 196     private String getMessageCachePath(String sender) {
 197         if (sender == null || sender.isEmpty()) {
 198             return getMessageCachePath();
 199         }
 200
 201         return getMessageCachePath() + "/" + sender.replace("/", "_");
 202     }
 203
 204     private File getMessageCacheFile(String sender, long now, long timestamp) throws IOException {
 205         String cachePath = getMessageCachePath(sender);
 206         IOUtils.createPrivateDirectories(cachePath);
 207         return new File(cachePath + "/" + now + "_" + timestamp);
 208     }
 209
 210     public static Manager init(String username, String settingsPath, SignalServiceConfiguration serviceConfiguration, String userAgent) throws IOException {
 211         PathConfig pathConfig = PathConfig.createDefault(settingsPath);
 212
 213         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 214             IdentityKeyPair identityKey = KeyHelper.generateIdentityKeyPair();
 215             int registrationId = KeyHelper.generateRegistrationId(false);
 216
 217             ProfileKey profileKey = KeyUtils.createProfileKey();
 218             SignalAccount account = SignalAccount.create(pathConfig.getDataPath(), username, identityKey, registrationId, profileKey);
 219             account.save();
 220
 221             return new Manager(account, pathConfig, serviceConfiguration, userAgent);
 222         }
 223
 224         SignalAccount account = SignalAccount.load(pathConfig.getDataPath(), username);
 225
 226         Manager m = new Manager(account, pathConfig, serviceConfiguration, userAgent);
 227
 228         m.migrateLegacyConfigs();
 229
 230         return m;
 231     }
 232
 233     private void migrateLegacyConfigs() {
 234         // Copy group avatars that were previously stored in the attachments folder
 235         // to the new avatar folder
 236         if (JsonGroupStore.groupsWithLegacyAvatarId.size() > 0) {
 237             for (GroupInfo g : JsonGroupStore.groupsWithLegacyAvatarId) {
 238                 File avatarFile = getGroupAvatarFile(g.groupId);
 239                 File attachmentFile = getAttachmentFile(new SignalServiceAttachmentRemoteId(g.getAvatarId()));
 240                 if (!avatarFile.exists() && attachmentFile.exists()) {
 241                     try {
 242                         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
 243                         Files.copy(attachmentFile.toPath(), avatarFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 244                     } catch (Exception e) {
 245                         // Ignore
 246                     }
 247                 }
 248             }
 249             JsonGroupStore.groupsWithLegacyAvatarId.clear();
 250             account.save();
 251         }
 252         if (account.getProfileKey() == null) {
 253             // Old config file, creating new profile key
 254             account.setProfileKey(KeyUtils.createProfileKey());
 255             account.save();
 256         }
 257     }
 258
 259     public void checkAccountState() throws IOException {
 260         if (account.isRegistered()) {
 261             if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 262                 refreshPreKeys();
 263                 account.save();
 264             }
 265             if (account.getUuid() == null) {
 266                 account.setUuid(accountManager.getOwnUuid());
 267                 account.save();
 268             }
 269         }
 270     }
 271
 272     public boolean isRegistered() {
 273         return account.isRegistered();
 274     }
 275
 276     public void register(boolean voiceVerification) throws IOException {
 277         account.setPassword(KeyUtils.createPassword());
 278
 279         // Resetting UUID, because registering doesn't work otherwise
 280         account.setUuid(null);
 281         accountManager = createSignalServiceAccountManager();
 282
 283         if (voiceVerification) {
 284             accountManager.requestVoiceVerificationCode(Locale.getDefault(), Optional.absent(), Optional.absent());
 285         } else {
 286             accountManager.requestSmsVerificationCode(false, Optional.absent(), Optional.absent());
 287         }
 288
 289         account.setRegistered(false);
 290         account.save();
 291     }
 292
 293     public void updateAccountAttributes() throws IOException {
 294         accountManager.setAccountAttributes(account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, account.getRegistrationLockPin(), account.getRegistrationLock(), getSelfUnidentifiedAccessKey(), false, capabilities, discoverableByPhoneNumber);
 295     }
 296
 297     public void setProfile(String name, File avatar) throws IOException {
 298         try (final StreamDetails streamDetails = avatar == null ? null : Utils.createStreamDetailsFromFile(avatar)) {
 299             accountManager.setVersionedProfile(account.getUuid(), account.getProfileKey(), name, streamDetails);
 300         }
 301     }
 302
 303     public void unregister() throws IOException {
 304         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 305         // If this is the master device, other users can't send messages to this number anymore.
 306         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 307         accountManager.setGcmId(Optional.absent());
 308
 309         account.setRegistered(false);
 310         account.save();
 311     }
 312
 313     public List<DeviceInfo> getLinkedDevices() throws IOException {
 314         List<DeviceInfo> devices = accountManager.getDevices();
 315         account.setMultiDevice(devices.size() > 1);
 316         account.save();
 317         return devices;
 318     }
 319
 320     public void removeLinkedDevices(int deviceId) throws IOException {
 321         accountManager.removeDevice(deviceId);
 322         List<DeviceInfo> devices = accountManager.getDevices();
 323         account.setMultiDevice(devices.size() > 1);
 324         account.save();
 325     }
 326
 327     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 328         Utils.DeviceLinkInfo info = Utils.parseDeviceLinkUri(linkUri);
 329
 330         addDevice(info.deviceIdentifier, info.deviceKey);
 331     }
 332
 333     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 334         IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 335         String verificationCode = accountManager.getNewDeviceVerificationCode();
 336
 337         accountManager.addDevice(deviceIdentifier, deviceKey, identityKeyPair, Optional.of(account.getProfileKey().serialize()), verificationCode);
 338         account.setMultiDevice(true);
 339         account.save();
 340     }
 341
 342     private List<PreKeyRecord> generatePreKeys() {
 343         List<PreKeyRecord> records = new ArrayList<>(ServiceConfig.PREKEY_BATCH_SIZE);
 344
 345         final int offset = account.getPreKeyIdOffset();
 346         for (int i = 0; i < ServiceConfig.PREKEY_BATCH_SIZE; i++) {
 347             int preKeyId = (offset + i) % Medium.MAX_VALUE;
 348             ECKeyPair keyPair = Curve.generateKeyPair();
 349             PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);
 350
 351             records.add(record);
 352         }
 353
 354         account.addPreKeys(records);
 355         account.save();
 356
 357         return records;
 358     }
 359
 360     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 361         try {
 362             ECKeyPair keyPair = Curve.generateKeyPair();
 363             byte[] signature = Curve.calculateSignature(identityKeyPair.getPrivateKey(), keyPair.getPublicKey().serialize());
 364             SignedPreKeyRecord record = new SignedPreKeyRecord(account.getNextSignedPreKeyId(), System.currentTimeMillis(), keyPair, signature);
 365
 366             account.addSignedPreKey(record);
 367             account.save();
 368
 369             return record;
 370         } catch (InvalidKeyException e) {
 371             throw new AssertionError(e);
 372         }
 373     }
 374
 375     public void verifyAccount(String verificationCode, String pin) throws IOException {
 376         verificationCode = verificationCode.replace("-", "");
 377         account.setSignalingKey(KeyUtils.createSignalingKey());
 378         // TODO make unrestricted unidentified access configurable
 379         VerifyAccountResponse response = accountManager.verifyAccountWithCode(verificationCode, account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, pin, null, getSelfUnidentifiedAccessKey(), false, capabilities, discoverableByPhoneNumber);
 380
 381         UUID uuid = UuidUtil.parseOrNull(response.getUuid());
 382         // TODO response.isStorageCapable()
 383         //accountManager.setGcmId(Optional.of(GoogleCloudMessaging.getInstance(this).register(REGISTRATION_ID)));
 384         account.setRegistered(true);
 385         account.setUuid(uuid);
 386         account.setRegistrationLockPin(pin);
 387         account.getSignalProtocolStore().saveIdentity(account.getSelfAddress(), getIdentityKeyPair().getPublicKey(), TrustLevel.TRUSTED_VERIFIED);
 388
 389         refreshPreKeys();
 390         account.save();
 391     }
 392
 393     public void setRegistrationLockPin(Optional<String> pin) throws IOException {
 394         if (pin.isPresent()) {
 395             account.setRegistrationLockPin(pin.get());
 396             throw new RuntimeException("Not implemented anymore, will be replaced with KBS");
 397         } else {
 398             account.setRegistrationLockPin(null);
 399             accountManager.removeRegistrationLockV1();
 400         }
 401         account.save();
 402     }
 403
 404     void refreshPreKeys() throws IOException {
 405         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 406         final IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 407         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 408
 409         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 410     }
 411
 412     private SignalServiceMessageReceiver getMessageReceiver() {
 413         // TODO implement ZkGroup support
 414         final ClientZkProfileOperations clientZkProfileOperations = null;
 415         return new SignalServiceMessageReceiver(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(), account.getDeviceId(), account.getSignalingKey(), userAgent, null, timer, clientZkProfileOperations);
 416     }
 417
 418     private SignalServiceMessageSender getMessageSender() {
 419         // TODO implement ZkGroup support
 420         final ClientZkProfileOperations clientZkProfileOperations = null;
 421         final boolean attachmentsV3 = false;
 422         final ExecutorService executor = null;
 423         return new SignalServiceMessageSender(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(),
 424                 account.getDeviceId(), account.getSignalProtocolStore(), userAgent, account.isMultiDevice(), attachmentsV3, Optional.fromNullable(messagePipe), Optional.fromNullable(unidentifiedMessagePipe), Optional.absent(), clientZkProfileOperations, executor);
 425     }
 426
 427     private SignalServiceProfile getEncryptedRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess) throws IOException {
 428         SignalServiceMessagePipe pipe = unidentifiedMessagePipe != null && unidentifiedAccess.isPresent() ? unidentifiedMessagePipe
 429                 : messagePipe;
 430
 431         if (pipe != null) {
 432             try {
 433                 return pipe.getProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).get(10, TimeUnit.SECONDS).getProfile();
 434             } catch (IOException | InterruptedException | ExecutionException | TimeoutException ignored) {
 435             }
 436         }
 437
 438         SignalServiceMessageReceiver receiver = getMessageReceiver();
 439         try {
 440             return receiver.retrieveProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).get(10, TimeUnit.SECONDS).getProfile();
 441         } catch (InterruptedException | ExecutionException | TimeoutException e) {
 442             throw new IOException("Failed to retrieve profile", e);
 443         }
 444     }
 445
 446     private SignalProfile getRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess, ProfileKey profileKey) throws IOException {
 447         SignalProfileEntry profileEntry = account.getProfileStore().getProfile(address);
 448         long now = new Date().getTime();
 449         // Profiles are cache for 24h before retrieving them again
 450         if (profileEntry == null || profileEntry.getProfile() == null || now - profileEntry.getLastUpdateTimestamp() > 24 * 60 * 60 * 1000) {
 451             SignalProfile profile = retrieveRecipientProfile(address, unidentifiedAccess, profileKey);
 452             profileEntry = new SignalProfileEntry(profileKey, now, profile);
 453             account.getProfileStore().updateProfile(address, profileEntry);
 454         }
 455         return profileEntry.getProfile();
 456     }
 457
 458     private SignalProfile retrieveRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess, ProfileKey profileKey) throws IOException {
 459         final SignalServiceProfile encryptedProfile = getEncryptedRecipientProfile(address, unidentifiedAccess);
 460
 461         File avatarFile = null;
 462         try {
 463             avatarFile = encryptedProfile.getAvatar() == null ? null : retrieveProfileAvatar(address, encryptedProfile.getAvatar(), profileKey);
 464         } catch (AssertionError e) {
 465             System.err.println("Failed to retrieve profile avatar: " + e.getMessage());
 466         }
 467
 468         ProfileCipher profileCipher = new ProfileCipher(profileKey);
 469         try {
 470             return new SignalProfile(
 471                     encryptedProfile.getIdentityKey(),
 472                     encryptedProfile.getName() == null ? null : new String(profileCipher.decryptName(Base64.decode(encryptedProfile.getName()))),
 473                     avatarFile,
 474                     encryptedProfile.getUnidentifiedAccess() == null || !profileCipher.verifyUnidentifiedAccess(Base64.decode(encryptedProfile.getUnidentifiedAccess())) ? null : encryptedProfile.getUnidentifiedAccess(),
 475                     encryptedProfile.isUnrestrictedUnidentifiedAccess(),
 476                     encryptedProfile.getCapabilities());
 477         } catch (InvalidCiphertextException e) {
 478             return null;
 479         }
 480     }
 481
 482     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(byte[] groupId) throws IOException {
 483         File file = getGroupAvatarFile(groupId);
 484         if (!file.exists()) {
 485             return Optional.absent();
 486         }
 487
 488         return Optional.of(Utils.createAttachment(file));
 489     }
 490
 491     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(String number) throws IOException {
 492         File file = getContactAvatarFile(number);
 493         if (!file.exists()) {
 494             return Optional.absent();
 495         }
 496
 497         return Optional.of(Utils.createAttachment(file));
 498     }
 499
 500     private GroupInfo getGroupForSending(byte[] groupId) throws GroupNotFoundException, NotAGroupMemberException {
 501         GroupInfo g = account.getGroupStore().getGroup(groupId);
 502         if (g == null) {
 503             throw new GroupNotFoundException(groupId);
 504         }
 505         if (!g.isMember(account.getSelfAddress())) {
 506             throw new NotAGroupMemberException(groupId, g.name);
 507         }
 508         return g;
 509     }
 510
 511     public List<GroupInfo> getGroups() {
 512         return account.getGroupStore().getGroups();
 513     }
 514
 515     public long sendGroupMessage(String messageText, List<String> attachments,
 516                                  byte[] groupId)
 517             throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 518         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 519         if (attachments != null) {
 520             messageBuilder.withAttachments(Utils.getSignalServiceAttachments(attachments));
 521         }
 522         if (groupId != null) {
 523             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 524                     .withId(groupId)
 525                     .build();
 526             messageBuilder.asGroupMessage(group);
 527         }
 528
 529         final GroupInfo g = getGroupForSending(groupId);
 530
 531         messageBuilder.withExpiration(g.messageExpirationTime);
 532
 533         return sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 534     }
 535
 536     public void sendGroupMessageReaction(String emoji, boolean remove, String targetAuthor,
 537                                          long targetSentTimestamp, byte[] groupId)
 538             throws IOException, EncapsulatedExceptions, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 539         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, canonicalizeAndResolveSignalServiceAddress(targetAuthor), targetSentTimestamp);
 540         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 541                 .withReaction(reaction);
 542         if (groupId != null) {
 543             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 544                     .withId(groupId)
 545                     .build();
 546             messageBuilder.asGroupMessage(group);
 547         }
 548         final GroupInfo g = getGroupForSending(groupId);
 549         sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 550     }
 551
 552     public void sendQuitGroupMessage(byte[] groupId) throws GroupNotFoundException, IOException, EncapsulatedExceptions, NotAGroupMemberException {
 553         SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 554                 .withId(groupId)
 555                 .build();
 556
 557         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 558                 .asGroupMessage(group);
 559
 560         final GroupInfo g = getGroupForSending(groupId);
 561         g.removeMember(account.getSelfAddress());
 562         account.getGroupStore().updateGroup(g);
 563
 564         sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 565     }
 566
 567     private byte[] sendUpdateGroupMessage(byte[] groupId, String name, Collection<SignalServiceAddress> members, String avatarFile) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 568         GroupInfo g;
 569         if (groupId == null) {
 570             // Create new group
 571             g = new GroupInfo(KeyUtils.createGroupId());
 572             g.addMembers(Collections.singleton(account.getSelfAddress()));
 573         } else {
 574             g = getGroupForSending(groupId);
 575         }
 576
 577         if (name != null) {
 578             g.name = name;
 579         }
 580
 581         if (members != null) {
 582             final Set<String> newE164Members = new HashSet<>();
 583             for (SignalServiceAddress member : members) {
 584                 if (g.isMember(member) || !member.getNumber().isPresent()) {
 585                     continue;
 586                 }
 587                 newE164Members.add(member.getNumber().get());
 588             }
 589
 590             final List<ContactTokenDetails> contacts = accountManager.getContacts(newE164Members);
 591             if (contacts.size() != newE164Members.size()) {
 592                 // Some of the new members are not registered on Signal
 593                 for (ContactTokenDetails contact : contacts) {
 594                     newE164Members.remove(contact.getNumber());
 595                 }
 596                 throw new IOException("Failed to add members " + Util.join(", ", newE164Members) + " to group: Not registered on Signal");
 597             }
 598
 599             g.addMembers(members);
 600         }
 601
 602         if (avatarFile != null) {
 603             IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
 604             File aFile = getGroupAvatarFile(g.groupId);
 605             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 606         }
 607
 608         account.getGroupStore().updateGroup(g);
 609
 610         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 611
 612         sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 613         return g.groupId;
 614     }
 615
 616     void sendUpdateGroupMessage(byte[] groupId, SignalServiceAddress recipient) throws IOException, EncapsulatedExceptions, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 617         if (groupId == null) {
 618             return;
 619         }
 620         GroupInfo g = getGroupForSending(groupId);
 621
 622         if (!g.isMember(recipient)) {
 623             return;
 624         }
 625
 626         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 627
 628         // Send group message only to the recipient who requested it
 629         sendMessageLegacy(messageBuilder, Collections.singleton(recipient));
 630     }
 631
 632     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfo g) throws AttachmentInvalidException {
 633         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 634                 .withId(g.groupId)
 635                 .withName(g.name)
 636                 .withMembers(new ArrayList<>(g.getMembers()));
 637
 638         File aFile = getGroupAvatarFile(g.groupId);
 639         if (aFile.exists()) {
 640             try {
 641                 group.withAvatar(Utils.createAttachment(aFile));
 642             } catch (IOException e) {
 643                 throw new AttachmentInvalidException(aFile.toString(), e);
 644             }
 645         }
 646
 647         return SignalServiceDataMessage.newBuilder()
 648                 .asGroupMessage(group.build())
 649                 .withExpiration(g.messageExpirationTime);
 650     }
 651
 652     void sendGroupInfoRequest(byte[] groupId, SignalServiceAddress recipient) throws IOException, EncapsulatedExceptions {
 653         if (groupId == null) {
 654             return;
 655         }
 656
 657         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 658                 .withId(groupId);
 659
 660         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 661                 .asGroupMessage(group.build());
 662
 663         // Send group info request message to the recipient who sent us a message with this groupId
 664         sendMessageLegacy(messageBuilder, Collections.singleton(recipient));
 665     }
 666
 667     void sendReceipt(SignalServiceAddress remoteAddress, long messageId) throws IOException, UntrustedIdentityException {
 668         SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
 669                 Collections.singletonList(messageId),
 670                 System.currentTimeMillis());
 671
 672         getMessageSender().sendReceipt(remoteAddress, getAccessFor(remoteAddress), receiptMessage);
 673     }
 674
 675     public long sendMessage(String messageText, List<String> attachments,
 676                             List<String> recipients)
 677             throws IOException, EncapsulatedExceptions, AttachmentInvalidException, InvalidNumberException {
 678         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 679         if (attachments != null) {
 680             List<SignalServiceAttachment> attachmentStreams = Utils.getSignalServiceAttachments(attachments);
 681
 682             // Upload attachments here, so we only upload once even for multiple recipients
 683             SignalServiceMessageSender messageSender = getMessageSender();
 684             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 685             for (SignalServiceAttachment attachment : attachmentStreams) {
 686                 if (attachment.isStream()) {
 687                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 688                 } else if (attachment.isPointer()) {
 689                     attachmentPointers.add(attachment.asPointer());
 690                 }
 691             }
 692
 693             messageBuilder.withAttachments(attachmentPointers);
 694         }
 695         return sendMessageLegacy(messageBuilder, getSignalServiceAddresses(recipients));
 696     }
 697
 698     public void sendMessageReaction(String emoji, boolean remove, String targetAuthor,
 699                                     long targetSentTimestamp, List<String> recipients)
 700             throws IOException, EncapsulatedExceptions, InvalidNumberException {
 701         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, canonicalizeAndResolveSignalServiceAddress(targetAuthor), targetSentTimestamp);
 702         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 703                 .withReaction(reaction);
 704         sendMessageLegacy(messageBuilder, getSignalServiceAddresses(recipients));
 705     }
 706
 707     public void sendEndSessionMessage(List<String> recipients) throws IOException, EncapsulatedExceptions, InvalidNumberException {
 708         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 709                 .asEndSessionMessage();
 710
 711         final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
 712         try {
 713             sendMessageLegacy(messageBuilder, signalServiceAddresses);
 714         } catch (Exception e) {
 715             for (SignalServiceAddress address : signalServiceAddresses) {
 716                 handleEndSession(address);
 717             }
 718             account.save();
 719             throw e;
 720         }
 721     }
 722
 723     public String getContactName(String number) throws InvalidNumberException {
 724         ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));
 725         if (contact == null) {
 726             return "";
 727         } else {
 728             return contact.name;
 729         }
 730     }
 731
 732     public void setContactName(String number, String name) throws InvalidNumberException {
 733         final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 734         ContactInfo contact = account.getContactStore().getContact(address);
 735         if (contact == null) {
 736             contact = new ContactInfo(address);
 737         }
 738         contact.name = name;
 739         account.getContactStore().updateContact(contact);
 740         account.save();
 741     }
 742
 743     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
 744         setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
 745     }
 746
 747     private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
 748         ContactInfo contact = account.getContactStore().getContact(address);
 749         if (contact == null) {
 750             contact = new ContactInfo(address);
 751         }
 752         contact.blocked = blocked;
 753         account.getContactStore().updateContact(contact);
 754         account.save();
 755     }
 756
 757     public void setGroupBlocked(final byte[] groupId, final boolean blocked) throws GroupNotFoundException {
 758         GroupInfo group = getGroup(groupId);
 759         if (group == null) {
 760             throw new GroupNotFoundException(groupId);
 761         }
 762
 763         group.blocked = blocked;
 764         account.getGroupStore().updateGroup(group);
 765         account.save();
 766     }
 767
 768     public byte[] updateGroup(byte[] groupId, String name, List<String> members, String avatar) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 769         if (groupId.length == 0) {
 770             groupId = null;
 771         }
 772         if (name.isEmpty()) {
 773             name = null;
 774         }
 775         if (members.isEmpty()) {
 776             members = null;
 777         }
 778         if (avatar.isEmpty()) {
 779             avatar = null;
 780         }
 781         return sendUpdateGroupMessage(groupId, name, members == null ? null : getSignalServiceAddresses(members), avatar);
 782     }
 783
 784     /**
 785      * Change the expiration timer for a contact
 786      */
 787     public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) throws IOException {
 788         ContactInfo contact = account.getContactStore().getContact(address);
 789         contact.messageExpirationTime = messageExpirationTimer;
 790         account.getContactStore().updateContact(contact);
 791         sendExpirationTimerUpdate(address);
 792         account.save();
 793     }
 794
 795     private void sendExpirationTimerUpdate(SignalServiceAddress address) throws IOException {
 796         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 797                 .asExpirationUpdate();
 798         sendMessage(messageBuilder, Collections.singleton(address));
 799     }
 800
 801     /**
 802      * Change the expiration timer for a contact
 803      */
 804     public void setExpirationTimer(String number, int messageExpirationTimer) throws IOException, InvalidNumberException {
 805         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 806         setExpirationTimer(address, messageExpirationTimer);
 807     }
 808
 809     /**
 810      * Change the expiration timer for a group
 811      */
 812     public void setExpirationTimer(byte[] groupId, int messageExpirationTimer) {
 813         GroupInfo g = account.getGroupStore().getGroup(groupId);
 814         g.messageExpirationTime = messageExpirationTimer;
 815         account.getGroupStore().updateGroup(g);
 816     }
 817
 818     /**
 819      * Upload the sticker pack from path.
 820      *
 821      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
 822      * @return if successful, returns the URL to install the sticker pack in the signal app
 823      */
 824     public String uploadStickerPack(String path) throws IOException, StickerPackInvalidException {
 825         SignalServiceStickerManifestUpload manifest = getSignalServiceStickerManifestUpload(path);
 826
 827         SignalServiceMessageSender messageSender = getMessageSender();
 828
 829         byte[] packKey = KeyUtils.createStickerUploadKey();
 830         String packId = messageSender.uploadStickerManifest(manifest, packKey);
 831
 832         try {
 833             return new URI("https", "signal.art", "/addstickers/", "pack_id=" + URLEncoder.encode(packId, "utf-8") + "&pack_key=" + URLEncoder.encode(Hex.toStringCondensed(packKey), "utf-8"))
 834                     .toString();
 835         } catch (URISyntaxException e) {
 836             throw new AssertionError(e);
 837         }
 838     }
 839
 840     private SignalServiceStickerManifestUpload getSignalServiceStickerManifestUpload(final String path) throws IOException, StickerPackInvalidException {
 841         ZipFile zip = null;
 842         String rootPath = null;
 843
 844         final File file = new File(path);
 845         if (file.getName().endsWith(".zip")) {
 846             zip = new ZipFile(file);
 847         } else if (file.getName().equals("manifest.json")) {
 848             rootPath = file.getParent();
 849         } else {
 850             throw new StickerPackInvalidException("Could not find manifest.json");
 851         }
 852
 853         JsonStickerPack pack = parseStickerPack(rootPath, zip);
 854
 855         if (pack.stickers == null) {
 856             throw new StickerPackInvalidException("Must set a 'stickers' field.");
 857         }
 858
 859         if (pack.stickers.isEmpty()) {
 860             throw new StickerPackInvalidException("Must include stickers.");
 861         }
 862
 863         List<StickerInfo> stickers = new ArrayList<>(pack.stickers.size());
 864         for (JsonStickerPack.JsonSticker sticker : pack.stickers) {
 865             if (sticker.file == null) {
 866                 throw new StickerPackInvalidException("Must set a 'file' field on each sticker.");
 867             }
 868
 869             Pair<InputStream, Long> data;
 870             try {
 871                 data = getInputStreamAndLength(rootPath, zip, sticker.file);
 872             } catch (IOException ignored) {
 873                 throw new StickerPackInvalidException("Could not find find " + sticker.file);
 874             }
 875
 876             String contentType = Utils.getFileMimeType(new File(sticker.file), null);
 877             StickerInfo stickerInfo = new StickerInfo(data.first(), data.second(), Optional.fromNullable(sticker.emoji).or(""), contentType);
 878             stickers.add(stickerInfo);
 879         }
 880
 881         StickerInfo cover = null;
 882         if (pack.cover != null) {
 883             if (pack.cover.file == null) {
 884                 throw new StickerPackInvalidException("Must set a 'file' field on the cover.");
 885             }
 886
 887             Pair<InputStream, Long> data;
 888             try {
 889                 data = getInputStreamAndLength(rootPath, zip, pack.cover.file);
 890             } catch (IOException ignored) {
 891                 throw new StickerPackInvalidException("Could not find find " + pack.cover.file);
 892             }
 893
 894             String contentType = Utils.getFileMimeType(new File(pack.cover.file), null);
 895             cover = new StickerInfo(data.first(), data.second(), Optional.fromNullable(pack.cover.emoji).or(""), contentType);
 896         }
 897
 898         return new SignalServiceStickerManifestUpload(
 899                 pack.title,
 900                 pack.author,
 901                 cover,
 902                 stickers);
 903     }
 904
 905     private static JsonStickerPack parseStickerPack(String rootPath, ZipFile zip) throws IOException {
 906         InputStream inputStream;
 907         if (zip != null) {
 908             inputStream = zip.getInputStream(zip.getEntry("manifest.json"));
 909         } else {
 910             inputStream = new FileInputStream((new File(rootPath, "manifest.json")));
 911         }
 912         return new ObjectMapper().readValue(inputStream, JsonStickerPack.class);
 913     }
 914
 915     private static Pair<InputStream, Long> getInputStreamAndLength(final String rootPath, final ZipFile zip, final String subfile) throws IOException {
 916         if (zip != null) {
 917             final ZipEntry entry = zip.getEntry(subfile);
 918             return new Pair<>(zip.getInputStream(entry), entry.getSize());
 919         } else {
 920             final File file = new File(rootPath, subfile);
 921             return new Pair<>(new FileInputStream(file), file.length());
 922         }
 923     }
 924
 925     void requestSyncGroups() throws IOException {
 926         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS).build();
 927         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 928         try {
 929             sendSyncMessage(message);
 930         } catch (UntrustedIdentityException e) {
 931             e.printStackTrace();
 932         }
 933     }
 934
 935     void requestSyncContacts() throws IOException {
 936         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS).build();
 937         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 938         try {
 939             sendSyncMessage(message);
 940         } catch (UntrustedIdentityException e) {
 941             e.printStackTrace();
 942         }
 943     }
 944
 945     void requestSyncBlocked() throws IOException {
 946         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED).build();
 947         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 948         try {
 949             sendSyncMessage(message);
 950         } catch (UntrustedIdentityException e) {
 951             e.printStackTrace();
 952         }
 953     }
 954
 955     void requestSyncConfiguration() throws IOException {
 956         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION).build();
 957         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 958         try {
 959             sendSyncMessage(message);
 960         } catch (UntrustedIdentityException e) {
 961             e.printStackTrace();
 962         }
 963     }
 964
 965     private byte[] getSenderCertificate() {
 966         // TODO support UUID capable sender certificates
 967         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
 968         byte[] certificate;
 969         try {
 970             certificate = accountManager.getSenderCertificate();
 971         } catch (IOException e) {
 972             System.err.println("Failed to get sender certificate: " + e);
 973             return null;
 974         }
 975         // TODO cache for a day
 976         return certificate;
 977     }
 978
 979     private byte[] getSelfUnidentifiedAccessKey() {
 980         return UnidentifiedAccess.deriveAccessKeyFrom(account.getProfileKey());
 981     }
 982
 983     private byte[] getTargetUnidentifiedAccessKey(SignalServiceAddress recipient) {
 984         ContactInfo contact = account.getContactStore().getContact(recipient);
 985         if (contact == null || contact.profileKey == null) {
 986             return null;
 987         }
 988         ProfileKey theirProfileKey;
 989         try {
 990             theirProfileKey = new ProfileKey(Base64.decode(contact.profileKey));
 991         } catch (InvalidInputException | IOException e) {
 992             throw new AssertionError(e);
 993         }
 994         SignalProfile targetProfile;
 995         try {
 996             targetProfile = getRecipientProfile(recipient, Optional.absent(), theirProfileKey);
 997         } catch (IOException e) {
 998             System.err.println("Failed to get recipient profile: " + e);
 999             return null;
1000         }
1001
1002         if (targetProfile == null || targetProfile.getUnidentifiedAccess() == null) {
1003             return null;
1004         }
1005
1006         if (targetProfile.isUnrestrictedUnidentifiedAccess()) {
1007             return KeyUtils.createUnrestrictedUnidentifiedAccess();
1008         }
1009
1010         return UnidentifiedAccess.deriveAccessKeyFrom(theirProfileKey);
1011     }
1012
1013     private Optional<UnidentifiedAccessPair> getAccessForSync() {
1014         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
1015         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
1016
1017         if (selfUnidentifiedAccessKey == null || selfUnidentifiedAccessCertificate == null) {
1018             return Optional.absent();
1019         }
1020
1021         try {
1022             return Optional.of(new UnidentifiedAccessPair(
1023                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate),
1024                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate)
1025             ));
1026         } catch (InvalidCertificateException e) {
1027             return Optional.absent();
1028         }
1029     }
1030
1031     private List<Optional<UnidentifiedAccessPair>> getAccessFor(Collection<SignalServiceAddress> recipients) {
1032         List<Optional<UnidentifiedAccessPair>> result = new ArrayList<>(recipients.size());
1033         for (SignalServiceAddress recipient : recipients) {
1034             result.add(getAccessFor(recipient));
1035         }
1036         return result;
1037     }
1038
1039     private Optional<UnidentifiedAccessPair> getAccessFor(SignalServiceAddress recipient) {
1040         byte[] recipientUnidentifiedAccessKey = getTargetUnidentifiedAccessKey(recipient);
1041         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
1042         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
1043
1044         if (recipientUnidentifiedAccessKey == null || selfUnidentifiedAccessKey == null || selfUnidentifiedAccessCertificate == null) {
1045             return Optional.absent();
1046         }
1047
1048         try {
1049             return Optional.of(new UnidentifiedAccessPair(
1050                     new UnidentifiedAccess(recipientUnidentifiedAccessKey, selfUnidentifiedAccessCertificate),
1051                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate)
1052             ));
1053         } catch (InvalidCertificateException e) {
1054             return Optional.absent();
1055         }
1056     }
1057
1058     private Optional<UnidentifiedAccess> getUnidentifiedAccess(SignalServiceAddress recipient) {
1059         Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
1060
1061         if (unidentifiedAccess.isPresent()) {
1062             return unidentifiedAccess.get().getTargetUnidentifiedAccess();
1063         }
1064
1065         return Optional.absent();
1066     }
1067
1068     private void sendSyncMessage(SignalServiceSyncMessage message)
1069             throws IOException, UntrustedIdentityException {
1070         SignalServiceMessageSender messageSender = getMessageSender();
1071         try {
1072             messageSender.sendMessage(message, getAccessForSync());
1073         } catch (UntrustedIdentityException e) {
1074             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1075             throw e;
1076         }
1077     }
1078
1079     /**
1080      * This method throws an EncapsulatedExceptions exception instead of returning a list of SendMessageResult.
1081      */
1082     private long sendMessageLegacy(SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients)
1083             throws EncapsulatedExceptions, IOException {
1084         final long timestamp = System.currentTimeMillis();
1085         messageBuilder.withTimestamp(timestamp);
1086         List<SendMessageResult> results = sendMessage(messageBuilder, recipients);
1087
1088         List<UntrustedIdentityException> untrustedIdentities = new LinkedList<>();
1089         List<UnregisteredUserException> unregisteredUsers = new LinkedList<>();
1090         List<NetworkFailureException> networkExceptions = new LinkedList<>();
1091
1092         for (SendMessageResult result : results) {
1093             if (result.isUnregisteredFailure()) {
1094                 unregisteredUsers.add(new UnregisteredUserException(result.getAddress().getLegacyIdentifier(), null));
1095             } else if (result.isNetworkFailure()) {
1096                 networkExceptions.add(new NetworkFailureException(result.getAddress().getLegacyIdentifier(), null));
1097             } else if (result.getIdentityFailure() != null) {
1098                 untrustedIdentities.add(new UntrustedIdentityException("Untrusted", result.getAddress().getLegacyIdentifier(), result.getIdentityFailure().getIdentityKey()));
1099             }
1100         }
1101         if (!untrustedIdentities.isEmpty() || !unregisteredUsers.isEmpty() || !networkExceptions.isEmpty()) {
1102             throw new EncapsulatedExceptions(untrustedIdentities, unregisteredUsers, networkExceptions);
1103         }
1104         return timestamp;
1105     }
1106
1107     private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1108         final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
1109
1110         for (String number : numbers) {
1111             signalServiceAddresses.add(canonicalizeAndResolveSignalServiceAddress(number));
1112         }
1113         return signalServiceAddresses;
1114     }
1115
1116     private List<SendMessageResult> sendMessage(SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients)
1117             throws IOException {
1118         if (messagePipe == null) {
1119             messagePipe = getMessageReceiver().createMessagePipe();
1120         }
1121         if (unidentifiedMessagePipe == null) {
1122             unidentifiedMessagePipe = getMessageReceiver().createUnidentifiedMessagePipe();
1123         }
1124         SignalServiceDataMessage message = null;
1125         try {
1126             message = messageBuilder.build();
1127             if (message.getGroupContext().isPresent()) {
1128                 try {
1129                     SignalServiceMessageSender messageSender = getMessageSender();
1130                     final boolean isRecipientUpdate = false;
1131                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients), getAccessFor(recipients), isRecipientUpdate, message);
1132                     for (SendMessageResult r : result) {
1133                         if (r.getIdentityFailure() != null) {
1134                             account.getSignalProtocolStore().saveIdentity(r.getAddress(), r.getIdentityFailure().getIdentityKey(), TrustLevel.UNTRUSTED);
1135                         }
1136                     }
1137                     return result;
1138                 } catch (UntrustedIdentityException e) {
1139                     account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1140                     return Collections.emptyList();
1141                 }
1142             } else {
1143                 // Send to all individually, so sync messages are sent correctly
1144                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1145                 for (SignalServiceAddress address : recipients) {
1146                     ContactInfo contact = account.getContactStore().getContact(address);
1147                     if (contact != null) {
1148                         messageBuilder.withExpiration(contact.messageExpirationTime);
1149                         messageBuilder.withProfileKey(account.getProfileKey().serialize());
1150                     } else {
1151                         messageBuilder.withExpiration(0);
1152                         messageBuilder.withProfileKey(null);
1153                     }
1154                     message = messageBuilder.build();
1155                     if (address.matches(account.getSelfAddress())) {
1156                         results.add(sendSelfMessage(message));
1157                     } else {
1158                         results.add(sendMessage(address, message));
1159                     }
1160                 }
1161                 return results;
1162             }
1163         } finally {
1164             if (message != null && message.isEndSession()) {
1165                 for (SignalServiceAddress recipient : recipients) {
1166                     handleEndSession(recipient);
1167                 }
1168             }
1169             account.save();
1170         }
1171     }
1172
1173     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1174         SignalServiceMessageSender messageSender = getMessageSender();
1175
1176         SignalServiceAddress recipient = account.getSelfAddress();
1177
1178         final Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
1179         SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1180                 message.getTimestamp(),
1181                 message,
1182                 message.getExpiresInSeconds(),
1183                 Collections.singletonMap(recipient, unidentifiedAccess.isPresent()),
1184                 false);
1185         SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1186
1187         try {
1188             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1189             return SendMessageResult.success(recipient, unidentifiedAccess.isPresent(), false);
1190         } catch (UntrustedIdentityException e) {
1191             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1192             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1193         }
1194     }
1195
1196     private SendMessageResult sendMessage(SignalServiceAddress address, SignalServiceDataMessage message) throws IOException {
1197         SignalServiceMessageSender messageSender = getMessageSender();
1198
1199         try {
1200             return messageSender.sendMessage(address, getAccessFor(address), message);
1201         } catch (UntrustedIdentityException e) {
1202             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1203             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1204         }
1205     }
1206
1207     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1208         SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(), account.getSignalProtocolStore(), Utils.getCertificateValidator());
1209         try {
1210             return cipher.decrypt(envelope);
1211         } catch (ProtocolUntrustedIdentityException e) {
1212             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1213                 org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e.getCause();
1214                 account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(identityException.getName()), identityException.getUntrustedIdentity(), TrustLevel.UNTRUSTED);
1215                 throw identityException;
1216             }
1217             throw new AssertionError(e);
1218         }
1219     }
1220
1221     private void handleEndSession(SignalServiceAddress source) {
1222         account.getSignalProtocolStore().deleteAllSessions(source);
1223     }
1224
1225     private List<HandleAction> handleSignalServiceDataMessage(SignalServiceDataMessage message, boolean isSync, SignalServiceAddress source, SignalServiceAddress destination, boolean ignoreAttachments) {
1226         List<HandleAction> actions = new ArrayList<>();
1227         if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1228             SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1229             GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
1230             switch (groupInfo.getType()) {
1231                 case UPDATE:
1232                     if (group == null) {
1233                         group = new GroupInfo(groupInfo.getGroupId());
1234                     }
1235
1236                     if (groupInfo.getAvatar().isPresent()) {
1237                         SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1238                         if (avatar.isPointer()) {
1239                             try {
1240                                 retrieveGroupAvatarAttachment(avatar.asPointer(), group.groupId);
1241                             } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1242                                 System.err.println("Failed to retrieve group avatar (" + avatar.asPointer().getRemoteId() + "): " + e.getMessage());
1243                             }
1244                         }
1245                     }
1246
1247                     if (groupInfo.getName().isPresent()) {
1248                         group.name = groupInfo.getName().get();
1249                     }
1250
1251                     if (groupInfo.getMembers().isPresent()) {
1252                         group.addMembers(groupInfo.getMembers().get()
1253                                 .stream()
1254                                 .map(this::resolveSignalServiceAddress)
1255                                 .collect(Collectors.toSet()));
1256                     }
1257
1258                     account.getGroupStore().updateGroup(group);
1259                     break;
1260                 case DELIVER:
1261                     if (group == null && !isSync) {
1262                         actions.add(new SendGroupInfoRequestAction(source, groupInfo.getGroupId()));
1263                     }
1264                     break;
1265                 case QUIT:
1266                     if (group != null) {
1267                         group.removeMember(source);
1268                         account.getGroupStore().updateGroup(group);
1269                     }
1270                     break;
1271                 case REQUEST_INFO:
1272                     if (group != null && !isSync) {
1273                         actions.add(new SendGroupUpdateAction(source, group.groupId));
1274                     }
1275                     break;
1276             }
1277         }
1278         final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;
1279         if (message.isEndSession()) {
1280             handleEndSession(conversationPartnerAddress);
1281         }
1282         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1283             if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1284                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1285                 GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
1286                 if (group == null) {
1287                     group = new GroupInfo(groupInfo.getGroupId());
1288                 }
1289                 if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1290                     group.messageExpirationTime = message.getExpiresInSeconds();
1291                     account.getGroupStore().updateGroup(group);
1292                 }
1293             } else {
1294                 ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
1295                 if (contact == null) {
1296                     contact = new ContactInfo(conversationPartnerAddress);
1297                 }
1298                 if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
1299                     contact.messageExpirationTime = message.getExpiresInSeconds();
1300                     account.getContactStore().updateContact(contact);
1301                 }
1302             }
1303         }
1304         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1305             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1306                 if (attachment.isPointer()) {
1307                     try {
1308                         retrieveAttachment(attachment.asPointer());
1309                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1310                         System.err.println("Failed to retrieve attachment (" + attachment.asPointer().getRemoteId() + "): " + e.getMessage());
1311                     }
1312                 }
1313             }
1314         }
1315         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1316             if (source.matches(account.getSelfAddress())) {
1317                 try {
1318                     this.account.setProfileKey(new ProfileKey(message.getProfileKey().get()));
1319                 } catch (InvalidInputException ignored) {
1320                 }
1321                 ContactInfo contact = account.getContactStore().getContact(source);
1322                 if (contact != null) {
1323                     contact.profileKey = Base64.encodeBytes(message.getProfileKey().get());
1324                     account.getContactStore().updateContact(contact);
1325                 }
1326             } else {
1327                 ContactInfo contact = account.getContactStore().getContact(source);
1328                 if (contact == null) {
1329                     contact = new ContactInfo(source);
1330                 }
1331                 contact.profileKey = Base64.encodeBytes(message.getProfileKey().get());
1332                 account.getContactStore().updateContact(contact);
1333             }
1334         }
1335         if (message.getPreviews().isPresent()) {
1336             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1337             for (SignalServiceDataMessage.Preview preview : previews) {
1338                 if (preview.getImage().isPresent() && preview.getImage().get().isPointer()) {
1339                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
1340                     try {
1341                         retrieveAttachment(attachment);
1342                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1343                         System.err.println("Failed to retrieve attachment (" + attachment.getRemoteId() + "): " + e.getMessage());
1344                     }
1345                 }
1346             }
1347         }
1348         return actions;
1349     }
1350
1351     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1352         final File cachePath = new File(getMessageCachePath());
1353         if (!cachePath.exists()) {
1354             return;
1355         }
1356         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
1357             if (!dir.isDirectory()) {
1358                 retryFailedReceivedMessage(handler, ignoreAttachments, dir);
1359                 continue;
1360             }
1361
1362             for (final File fileEntry : Objects.requireNonNull(dir.listFiles())) {
1363                 if (!fileEntry.isFile()) {
1364                     continue;
1365                 }
1366                 retryFailedReceivedMessage(handler, ignoreAttachments, fileEntry);
1367             }
1368             // Try to delete directory if empty
1369             dir.delete();
1370         }
1371     }
1372
1373     private void retryFailedReceivedMessage(final ReceiveMessageHandler handler, final boolean ignoreAttachments, final File fileEntry) {
1374         SignalServiceEnvelope envelope;
1375         try {
1376             envelope = Utils.loadEnvelope(fileEntry);
1377             if (envelope == null) {
1378                 return;
1379             }
1380         } catch (IOException e) {
1381             e.printStackTrace();
1382             return;
1383         }
1384         SignalServiceContent content = null;
1385         if (!envelope.isReceipt()) {
1386             try {
1387                 content = decryptMessage(envelope);
1388             } catch (Exception e) {
1389                 return;
1390             }
1391             List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1392             for (HandleAction action : actions) {
1393                 try {
1394                     action.execute(this);
1395                 } catch (Throwable e) {
1396                     e.printStackTrace();
1397                 }
1398             }
1399         }
1400         account.save();
1401         handler.handleMessage(envelope, content, null);
1402         try {
1403             Files.delete(fileEntry.toPath());
1404         } catch (IOException e) {
1405             System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1406         }
1407     }
1408
1409     public void receiveMessages(long timeout, TimeUnit unit, boolean returnOnTimeout, boolean ignoreAttachments, ReceiveMessageHandler handler) throws IOException {
1410         retryFailedReceivedMessages(handler, ignoreAttachments);
1411         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1412
1413         Set<HandleAction> queuedActions = null;
1414
1415         if (messagePipe == null) {
1416             messagePipe = messageReceiver.createMessagePipe();
1417         }
1418
1419         boolean hasCaughtUpWithOldMessages = false;
1420
1421         while (true) {
1422             SignalServiceEnvelope envelope;
1423             SignalServiceContent content = null;
1424             Exception exception = null;
1425             final long now = new Date().getTime();
1426             try {
1427                 Optional<SignalServiceEnvelope> result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1428                     // store message on disk, before acknowledging receipt to the server
1429                     try {
1430                         String source = envelope1.getSourceE164().isPresent() ? envelope1.getSourceE164().get() : "";
1431                         File cacheFile = getMessageCacheFile(source, now, envelope1.getTimestamp());
1432                         Utils.storeEnvelope(envelope1, cacheFile);
1433                     } catch (IOException e) {
1434                         System.err.println("Failed to store encrypted message in disk cache, ignoring: " + e.getMessage());
1435                     }
1436                 });
1437                 if (result.isPresent()) {
1438                     envelope = result.get();
1439                 } else {
1440                     // Received indicator that server queue is empty
1441                     hasCaughtUpWithOldMessages = true;
1442
1443                     if (queuedActions != null) {
1444                         for (HandleAction action : queuedActions) {
1445                             try {
1446                                 action.execute(this);
1447                             } catch (Throwable e) {
1448                                 e.printStackTrace();
1449                             }
1450                         }
1451                         queuedActions.clear();
1452                         queuedActions = null;
1453                     }
1454
1455                     // Continue to wait another timeout for new messages
1456                     continue;
1457                 }
1458             } catch (TimeoutException e) {
1459                 if (returnOnTimeout)
1460                     return;
1461                 continue;
1462             } catch (InvalidVersionException e) {
1463                 System.err.println("Ignoring error: " + e.getMessage());
1464                 continue;
1465             }
1466             if (envelope.hasSource()) {
1467                 // Store uuid if we don't have it already
1468                 SignalServiceAddress source = envelope.getSourceAddress();
1469                 resolveSignalServiceAddress(source);
1470             }
1471             if (!envelope.isReceipt()) {
1472                 try {
1473                     content = decryptMessage(envelope);
1474                 } catch (Exception e) {
1475                     exception = e;
1476                 }
1477                 List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1478                 if (hasCaughtUpWithOldMessages) {
1479                     for (HandleAction action : actions) {
1480                         try {
1481                             action.execute(this);
1482                         } catch (Throwable e) {
1483                             e.printStackTrace();
1484                         }
1485                     }
1486                 } else {
1487                     if (queuedActions == null) {
1488                         queuedActions = new HashSet<>();
1489                     }
1490                     queuedActions.addAll(actions);
1491                 }
1492             }
1493             account.save();
1494             if (!isMessageBlocked(envelope, content)) {
1495                 handler.handleMessage(envelope, content, exception);
1496             }
1497             if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
1498                 File cacheFile = null;
1499                 try {
1500                     cacheFile = getMessageCacheFile(envelope.getSourceE164().get(), now, envelope.getTimestamp());
1501                     Files.delete(cacheFile.toPath());
1502                     // Try to delete directory if empty
1503                     new File(getMessageCachePath()).delete();
1504                 } catch (IOException e) {
1505                     System.err.println("Failed to delete cached message file “" + cacheFile + "”: " + e.getMessage());
1506                 }
1507             }
1508         }
1509     }
1510
1511     private boolean isMessageBlocked(SignalServiceEnvelope envelope, SignalServiceContent content) {
1512         SignalServiceAddress source;
1513         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1514             source = envelope.getSourceAddress();
1515         } else if (content != null) {
1516             source = content.getSender();
1517         } else {
1518             return false;
1519         }
1520         ContactInfo sourceContact = account.getContactStore().getContact(source);
1521         if (sourceContact != null && sourceContact.blocked) {
1522             return true;
1523         }
1524
1525         if (content != null && content.getDataMessage().isPresent()) {
1526             SignalServiceDataMessage message = content.getDataMessage().get();
1527             if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1528                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1529                 GroupInfo group = getGroup(groupInfo.getGroupId());
1530                 if (groupInfo.getType() == SignalServiceGroup.Type.DELIVER && group != null && group.blocked) {
1531                     return true;
1532                 }
1533             }
1534         }
1535         return false;
1536     }
1537
1538     private List<HandleAction> handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments) {
1539         List<HandleAction> actions = new ArrayList<>();
1540         if (content != null) {
1541             SignalServiceAddress sender;
1542             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1543                 sender = envelope.getSourceAddress();
1544             } else {
1545                 sender = content.getSender();
1546             }
1547             // Store uuid if we don't have it already
1548             resolveSignalServiceAddress(sender);
1549
1550             if (content.getDataMessage().isPresent()) {
1551                 SignalServiceDataMessage message = content.getDataMessage().get();
1552
1553                 if (content.isNeedsReceipt()) {
1554                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1555                 }
1556
1557                 actions.addAll(handleSignalServiceDataMessage(message, false, sender, account.getSelfAddress(), ignoreAttachments));
1558             }
1559             if (content.getSyncMessage().isPresent()) {
1560                 account.setMultiDevice(true);
1561                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1562                 if (syncMessage.getSent().isPresent()) {
1563                     SentTranscriptMessage message = syncMessage.getSent().get();
1564                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(), true, sender, message.getDestination().orNull(), ignoreAttachments));
1565                 }
1566                 if (syncMessage.getRequest().isPresent()) {
1567                     RequestMessage rm = syncMessage.getRequest().get();
1568                     if (rm.isContactsRequest()) {
1569                         actions.add(SendSyncContactsAction.create());
1570                     }
1571                     if (rm.isGroupsRequest()) {
1572                         actions.add(SendSyncGroupsAction.create());
1573                     }
1574                     if (rm.isBlockedListRequest()) {
1575                         actions.add(SendSyncBlockedListAction.create());
1576                     }
1577                     // TODO Handle rm.isConfigurationRequest();
1578                 }
1579                 if (syncMessage.getGroups().isPresent()) {
1580                     File tmpFile = null;
1581                     try {
1582                         tmpFile = IOUtils.createTempFile();
1583                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups().get().asPointer(), tmpFile)) {
1584                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1585                             DeviceGroup g;
1586                             while ((g = s.read()) != null) {
1587                                 GroupInfo syncGroup = account.getGroupStore().getGroup(g.getId());
1588                                 if (syncGroup == null) {
1589                                     syncGroup = new GroupInfo(g.getId());
1590                                 }
1591                                 if (g.getName().isPresent()) {
1592                                     syncGroup.name = g.getName().get();
1593                                 }
1594                                 syncGroup.addMembers(g.getMembers()
1595                                         .stream()
1596                                         .map(this::resolveSignalServiceAddress)
1597                                         .collect(Collectors.toSet()));
1598                                 if (!g.isActive()) {
1599                                     syncGroup.removeMember(account.getSelfAddress());
1600                                 } else {
1601                                     // Add ourself to the member set as it's marked as active
1602                                     syncGroup.addMembers(Collections.singleton(account.getSelfAddress()));
1603                                 }
1604                                 syncGroup.blocked = g.isBlocked();
1605                                 if (g.getColor().isPresent()) {
1606                                     syncGroup.color = g.getColor().get();
1607                                 }
1608
1609                                 if (g.getAvatar().isPresent()) {
1610                                     retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId);
1611                                 }
1612                                 syncGroup.inboxPosition = g.getInboxPosition().orNull();
1613                                 syncGroup.archived = g.isArchived();
1614                                 account.getGroupStore().updateGroup(syncGroup);
1615                             }
1616                         }
1617                     } catch (Exception e) {
1618                         e.printStackTrace();
1619                     } finally {
1620                         if (tmpFile != null) {
1621                             try {
1622                                 Files.delete(tmpFile.toPath());
1623                             } catch (IOException e) {
1624                                 System.err.println("Failed to delete received groups temp file “" + tmpFile + "”: " + e.getMessage());
1625                             }
1626                         }
1627                     }
1628                 }
1629                 if (syncMessage.getBlockedList().isPresent()) {
1630                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1631                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1632                         setContactBlocked(resolveSignalServiceAddress(address), true);
1633                     }
1634                     for (byte[] groupId : blockedListMessage.getGroupIds()) {
1635                         try {
1636                             setGroupBlocked(groupId, true);
1637                         } catch (GroupNotFoundException e) {
1638                             System.err.println("BlockedListMessage contained groupID that was not found in GroupStore: " + Base64.encodeBytes(groupId));
1639                         }
1640                     }
1641                 }
1642                 if (syncMessage.getContacts().isPresent()) {
1643                     File tmpFile = null;
1644                     try {
1645                         tmpFile = IOUtils.createTempFile();
1646                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1647                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream().asPointer(), tmpFile)) {
1648                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1649                             if (contactsMessage.isComplete()) {
1650                                 account.getContactStore().clear();
1651                             }
1652                             DeviceContact c;
1653                             while ((c = s.read()) != null) {
1654                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
1655                                     account.setProfileKey(c.getProfileKey().get());
1656                                 }
1657                                 final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
1658                                 ContactInfo contact = account.getContactStore().getContact(address);
1659                                 if (contact == null) {
1660                                     contact = new ContactInfo(address);
1661                                 }
1662                                 if (c.getName().isPresent()) {
1663                                     contact.name = c.getName().get();
1664                                 }
1665                                 if (c.getColor().isPresent()) {
1666                                     contact.color = c.getColor().get();
1667                                 }
1668                                 if (c.getProfileKey().isPresent()) {
1669                                     contact.profileKey = Base64.encodeBytes(c.getProfileKey().get().serialize());
1670                                 }
1671                                 if (c.getVerified().isPresent()) {
1672                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
1673                                     account.getSignalProtocolStore().setIdentityTrustLevel(verifiedMessage.getDestination(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1674                                 }
1675                                 if (c.getExpirationTimer().isPresent()) {
1676                                     contact.messageExpirationTime = c.getExpirationTimer().get();
1677                                 }
1678                                 contact.blocked = c.isBlocked();
1679                                 contact.inboxPosition = c.getInboxPosition().orNull();
1680                                 contact.archived = c.isArchived();
1681                                 account.getContactStore().updateContact(contact);
1682
1683                                 if (c.getAvatar().isPresent()) {
1684                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
1685                                 }
1686                             }
1687                         }
1688                     } catch (Exception e) {
1689                         e.printStackTrace();
1690                     } finally {
1691                         if (tmpFile != null) {
1692                             try {
1693                                 Files.delete(tmpFile.toPath());
1694                             } catch (IOException e) {
1695                                 System.err.println("Failed to delete received contacts temp file “" + tmpFile + "”: " + e.getMessage());
1696                             }
1697                         }
1698                     }
1699                 }
1700                 if (syncMessage.getVerified().isPresent()) {
1701                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
1702                     account.getSignalProtocolStore().setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1703                 }
1704                 if (syncMessage.getConfiguration().isPresent()) {
1705                     // TODO
1706                 }
1707             }
1708         }
1709         return actions;
1710     }
1711
1712     private File getContactAvatarFile(String number) {
1713         return new File(pathConfig.getAvatarsPath(), "contact-" + number);
1714     }
1715
1716     private File retrieveContactAvatarAttachment(SignalServiceAttachment attachment, String number) throws IOException, InvalidMessageException, MissingConfigurationException {
1717         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1718         if (attachment.isPointer()) {
1719             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1720             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
1721         } else {
1722             SignalServiceAttachmentStream stream = attachment.asStream();
1723             return Utils.retrieveAttachment(stream, getContactAvatarFile(number));
1724         }
1725     }
1726
1727     private File getGroupAvatarFile(byte[] groupId) {
1728         return new File(pathConfig.getAvatarsPath(), "group-" + Base64.encodeBytes(groupId).replace("/", "_"));
1729     }
1730
1731     private File retrieveGroupAvatarAttachment(SignalServiceAttachment attachment, byte[] groupId) throws IOException, InvalidMessageException, MissingConfigurationException {
1732         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1733         if (attachment.isPointer()) {
1734             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1735             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
1736         } else {
1737             SignalServiceAttachmentStream stream = attachment.asStream();
1738             return Utils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
1739         }
1740     }
1741
1742     private File getProfileAvatarFile(SignalServiceAddress address) {
1743         return new File(pathConfig.getAvatarsPath(), "profile-" + address.getLegacyIdentifier());
1744     }
1745
1746     private File retrieveProfileAvatar(SignalServiceAddress address, String avatarPath, ProfileKey profileKey) throws IOException {
1747         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1748         SignalServiceMessageReceiver receiver = getMessageReceiver();
1749         File outputFile = getProfileAvatarFile(address);
1750
1751         File tmpFile = IOUtils.createTempFile();
1752         try (InputStream input = receiver.retrieveProfileAvatar(avatarPath, tmpFile, profileKey, ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
1753             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
1754             IOUtils.copyStreamToFile(input, outputFile, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
1755         } finally {
1756             try {
1757                 Files.delete(tmpFile.toPath());
1758             } catch (IOException e) {
1759                 System.err.println("Failed to delete received avatar temp file “" + tmpFile + "”: " + e.getMessage());
1760             }
1761         }
1762         return outputFile;
1763     }
1764
1765     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
1766         return new File(pathConfig.getAttachmentsPath(), attachmentId.toString());
1767     }
1768
1769     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException, MissingConfigurationException {
1770         IOUtils.createPrivateDirectories(pathConfig.getAttachmentsPath());
1771         return retrieveAttachment(pointer, getAttachmentFile(pointer.getRemoteId()), true);
1772     }
1773
1774     private File retrieveAttachment(SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview) throws IOException, InvalidMessageException, MissingConfigurationException {
1775         if (storePreview && pointer.getPreview().isPresent()) {
1776             File previewFile = new File(outputFile + ".preview");
1777             try (OutputStream output = new FileOutputStream(previewFile)) {
1778                 byte[] preview = pointer.getPreview().get();
1779                 output.write(preview, 0, preview.length);
1780             } catch (FileNotFoundException e) {
1781                 e.printStackTrace();
1782                 return null;
1783             }
1784         }
1785
1786         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1787
1788         File tmpFile = IOUtils.createTempFile();
1789         try (InputStream input = messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE)) {
1790             IOUtils.copyStreamToFile(input, outputFile);
1791         } finally {
1792             try {
1793                 Files.delete(tmpFile.toPath());
1794             } catch (IOException e) {
1795                 System.err.println("Failed to delete received attachment temp file “" + tmpFile + "”: " + e.getMessage());
1796             }
1797         }
1798         return outputFile;
1799     }
1800
1801     private InputStream retrieveAttachmentAsStream(SignalServiceAttachmentPointer pointer, File tmpFile) throws IOException, InvalidMessageException, MissingConfigurationException {
1802         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1803         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
1804     }
1805
1806     void sendGroups() throws IOException, UntrustedIdentityException {
1807         File groupsFile = IOUtils.createTempFile();
1808
1809         try {
1810             try (OutputStream fos = new FileOutputStream(groupsFile)) {
1811                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
1812                 for (GroupInfo record : account.getGroupStore().getGroups()) {
1813                     out.write(new DeviceGroup(record.groupId, Optional.fromNullable(record.name),
1814                             new ArrayList<>(record.getMembers()), createGroupAvatarAttachment(record.groupId),
1815                             record.isMember(account.getSelfAddress()), Optional.of(record.messageExpirationTime),
1816                             Optional.fromNullable(record.color), record.blocked, Optional.fromNullable(record.inboxPosition), record.archived));
1817                 }
1818             }
1819
1820             if (groupsFile.exists() && groupsFile.length() > 0) {
1821                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
1822                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1823                             .withStream(groupsFileStream)
1824                             .withContentType("application/octet-stream")
1825                             .withLength(groupsFile.length())
1826                             .build();
1827
1828                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
1829                 }
1830             }
1831         } finally {
1832             try {
1833                 Files.delete(groupsFile.toPath());
1834             } catch (IOException e) {
1835                 System.err.println("Failed to delete groups temp file “" + groupsFile + "”: " + e.getMessage());
1836             }
1837         }
1838     }
1839
1840     public void sendContacts() throws IOException, UntrustedIdentityException {
1841         File contactsFile = IOUtils.createTempFile();
1842
1843         try {
1844             try (OutputStream fos = new FileOutputStream(contactsFile)) {
1845                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
1846                 for (ContactInfo record : account.getContactStore().getContacts()) {
1847                     VerifiedMessage verifiedMessage = null;
1848                     JsonIdentityKeyStore.Identity currentIdentity = account.getSignalProtocolStore().getIdentity(record.getAddress());
1849                     if (currentIdentity != null) {
1850                         verifiedMessage = new VerifiedMessage(record.getAddress(), currentIdentity.getIdentityKey(), currentIdentity.getTrustLevel().toVerifiedState(), currentIdentity.getDateAdded().getTime());
1851                     }
1852
1853                     ProfileKey profileKey = null;
1854                     try {
1855                         profileKey = record.profileKey == null ? null : new ProfileKey(Base64.decode(record.profileKey));
1856                     } catch (InvalidInputException ignored) {
1857                     }
1858                     out.write(new DeviceContact(record.getAddress(), Optional.fromNullable(record.name),
1859                             createContactAvatarAttachment(record.number), Optional.fromNullable(record.color),
1860                             Optional.fromNullable(verifiedMessage), Optional.fromNullable(profileKey), record.blocked,
1861                             Optional.of(record.messageExpirationTime),
1862                             Optional.fromNullable(record.inboxPosition), record.archived));
1863                 }
1864
1865                 if (account.getProfileKey() != null) {
1866                     // Send our own profile key as well
1867                     out.write(new DeviceContact(account.getSelfAddress(),
1868                             Optional.absent(), Optional.absent(),
1869                             Optional.absent(), Optional.absent(),
1870                             Optional.of(account.getProfileKey()),
1871                             false, Optional.absent(), Optional.absent(), false));
1872                 }
1873             }
1874
1875             if (contactsFile.exists() && contactsFile.length() > 0) {
1876                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
1877                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1878                             .withStream(contactsFileStream)
1879                             .withContentType("application/octet-stream")
1880                             .withLength(contactsFile.length())
1881                             .build();
1882
1883                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
1884                 }
1885             }
1886         } finally {
1887             try {
1888                 Files.delete(contactsFile.toPath());
1889             } catch (IOException e) {
1890                 System.err.println("Failed to delete contacts temp file “" + contactsFile + "”: " + e.getMessage());
1891             }
1892         }
1893     }
1894
1895     void sendBlockedList() throws IOException, UntrustedIdentityException {
1896         List<SignalServiceAddress> addresses = new ArrayList<>();
1897         for (ContactInfo record : account.getContactStore().getContacts()) {
1898             if (record.blocked) {
1899                 addresses.add(record.getAddress());
1900             }
1901         }
1902         List<byte[]> groupIds = new ArrayList<>();
1903         for (GroupInfo record : account.getGroupStore().getGroups()) {
1904             if (record.blocked) {
1905                 groupIds.add(record.groupId);
1906             }
1907         }
1908         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
1909     }
1910
1911     private void sendVerifiedMessage(SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel) throws IOException, UntrustedIdentityException {
1912         VerifiedMessage verifiedMessage = new VerifiedMessage(destination, identityKey, trustLevel.toVerifiedState(), System.currentTimeMillis());
1913         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
1914     }
1915
1916     public List<ContactInfo> getContacts() {
1917         return account.getContactStore().getContacts();
1918     }
1919
1920     public ContactInfo getContact(String number) {
1921         return account.getContactStore().getContact(Util.getSignalServiceAddressFromIdentifier(number));
1922     }
1923
1924     public GroupInfo getGroup(byte[] groupId) {
1925         return account.getGroupStore().getGroup(groupId);
1926     }
1927
1928     public List<JsonIdentityKeyStore.Identity> getIdentities() {
1929         return account.getSignalProtocolStore().getIdentities();
1930     }
1931
1932     public List<JsonIdentityKeyStore.Identity> getIdentities(String number) throws InvalidNumberException {
1933         return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));
1934     }
1935
1936     /**
1937      * Trust this the identity with this fingerprint
1938      *
1939      * @param name        username of the identity
1940      * @param fingerprint Fingerprint
1941      */
1942     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
1943         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
1944         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
1945         if (ids == null) {
1946             return false;
1947         }
1948         for (JsonIdentityKeyStore.Identity id : ids) {
1949             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
1950                 continue;
1951             }
1952
1953             account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1954             try {
1955                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1956             } catch (IOException | UntrustedIdentityException e) {
1957                 e.printStackTrace();
1958             }
1959             account.save();
1960             return true;
1961         }
1962         return false;
1963     }
1964
1965     /**
1966      * Trust this the identity with this safety number
1967      *
1968      * @param name         username of the identity
1969      * @param safetyNumber Safety number
1970      */
1971     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
1972         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
1973         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
1974         if (ids == null) {
1975             return false;
1976         }
1977         for (JsonIdentityKeyStore.Identity id : ids) {
1978             if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {
1979                 continue;
1980             }
1981
1982             account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1983             try {
1984                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1985             } catch (IOException | UntrustedIdentityException e) {
1986                 e.printStackTrace();
1987             }
1988             account.save();
1989             return true;
1990         }
1991         return false;
1992     }
1993
1994     /**
1995      * Trust all keys of this identity without verification
1996      *
1997      * @param name username of the identity
1998      */
1999     public boolean trustIdentityAllKeys(String name) {
2000         SignalServiceAddress address = resolveSignalServiceAddress(name);
2001         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2002         if (ids == null) {
2003             return false;
2004         }
2005         for (JsonIdentityKeyStore.Identity id : ids) {
2006             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2007                 account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2008                 try {
2009                     sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2010                 } catch (IOException | UntrustedIdentityException e) {
2011                     e.printStackTrace();
2012                 }
2013             }
2014         }
2015         account.save();
2016         return true;
2017     }
2018
2019     public String computeSafetyNumber(SignalServiceAddress theirAddress, IdentityKey theirIdentityKey) {
2020         return Utils.computeSafetyNumber(account.getSelfAddress(), getIdentityKeyPair().getPublicKey(), theirAddress, theirIdentityKey);
2021     }
2022
2023     void saveAccount() {
2024         account.save();
2025     }
2026
2027     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2028         String canonicalizedNumber = UuidUtil.isUuid(identifier) ? identifier : Util.canonicalizeNumber(identifier, account.getUsername());
2029         return resolveSignalServiceAddress(canonicalizedNumber);
2030     }
2031
2032     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2033         SignalServiceAddress address = Util.getSignalServiceAddressFromIdentifier(identifier);
2034
2035         return resolveSignalServiceAddress(address);
2036     }
2037
2038     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2039         if (address.matches(account.getSelfAddress())) {
2040             return account.getSelfAddress();
2041         }
2042
2043         return account.getRecipientStore().resolveServiceAddress(address);
2044     }
2045
2046     @Override
2047     public void close() throws IOException {
2048         if (messagePipe != null) {
2049             messagePipe.shutdown();
2050             messagePipe = null;
2051         }
2052
2053         if (unidentifiedMessagePipe != null) {
2054             unidentifiedMessagePipe.shutdown();
2055             unidentifiedMessagePipe = null;
2056         }
2057
2058         account.close();
2059     }
2060
2061     public interface ReceiveMessageHandler {
2062
2063         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2064     }
2065 }