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.groupsv2.ClientZkOperations;
  70 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  71 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  72 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  73 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  74 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
  75 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
  76 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
  77 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  78 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
  79 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
  80 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
  81 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload;
  82 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload.StickerInfo;
  83 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
  84 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
  85 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
  86 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
  87 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
  88 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
  89 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
  90 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
  91 import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
  92 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
  93 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
  94 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
  95 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
  96 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
  97 import org.whispersystems.signalservice.api.push.ContactTokenDetails;
  98 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  99 import org.whispersystems.signalservice.api.push.exceptions.EncapsulatedExceptions;
 100 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 101 import org.whispersystems.signalservice.api.push.exceptions.NetworkFailureException;
 102 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 103 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 104 import org.whispersystems.signalservice.api.util.SleepTimer;
 105 import org.whispersystems.signalservice.api.util.StreamDetails;
 106 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 107 import org.whispersystems.signalservice.api.util.UuidUtil;
 108 import org.whispersystems.signalservice.internal.configuration.SignalServiceConfiguration;
 109 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 110 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 111 import org.whispersystems.signalservice.internal.push.VerifyAccountResponse;
 112 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 113 import org.whispersystems.signalservice.internal.util.Hex;
 114 import org.whispersystems.util.Base64;
 115
 116 import java.io.Closeable;
 117 import java.io.File;
 118 import java.io.FileInputStream;
 119 import java.io.FileNotFoundException;
 120 import java.io.FileOutputStream;
 121 import java.io.IOException;
 122 import java.io.InputStream;
 123 import java.io.OutputStream;
 124 import java.net.URI;
 125 import java.net.URISyntaxException;
 126 import java.net.URLEncoder;
 127 import java.nio.file.Files;
 128 import java.nio.file.Paths;
 129 import java.nio.file.StandardCopyOption;
 130 import java.util.ArrayList;
 131 import java.util.Arrays;
 132 import java.util.Collection;
 133 import java.util.Collections;
 134 import java.util.Date;
 135 import java.util.HashSet;
 136 import java.util.LinkedList;
 137 import java.util.List;
 138 import java.util.Locale;
 139 import java.util.Objects;
 140 import java.util.Set;
 141 import java.util.UUID;
 142 import java.util.concurrent.ExecutionException;
 143 import java.util.concurrent.ExecutorService;
 144 import java.util.concurrent.TimeUnit;
 145 import java.util.concurrent.TimeoutException;
 146 import java.util.stream.Collectors;
 147 import java.util.zip.ZipEntry;
 148 import java.util.zip.ZipFile;
 149
 150 import static org.asamk.signal.manager.ServiceConfig.capabilities;
 151
 152 public class Manager implements Closeable {
 153
 154     private final SleepTimer timer = new UptimeSleepTimer();
 155     private final SignalServiceConfiguration serviceConfiguration;
 156     private final String userAgent;
 157
 158     private final SignalAccount account;
 159     private final PathConfig pathConfig;
 160     private SignalServiceAccountManager accountManager;
 161     private SignalServiceMessagePipe messagePipe = null;
 162     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 163     private boolean discoverableByPhoneNumber = true;
 164
 165     public Manager(SignalAccount account, PathConfig pathConfig, SignalServiceConfiguration serviceConfiguration, String userAgent) {
 166         this.account = account;
 167         this.pathConfig = pathConfig;
 168         this.serviceConfiguration = serviceConfiguration;
 169         this.userAgent = userAgent;
 170         this.accountManager = createSignalServiceAccountManager();
 171
 172         this.account.setResolver(this::resolveSignalServiceAddress);
 173     }
 174
 175     public String getUsername() {
 176         return account.getUsername();
 177     }
 178
 179     public SignalServiceAddress getSelfAddress() {
 180         return account.getSelfAddress();
 181     }
 182
 183     private SignalServiceAccountManager createSignalServiceAccountManager() {
 184         GroupsV2Operations groupsV2Operations;
 185         try {
 186             groupsV2Operations = new GroupsV2Operations(ClientZkOperations.create(serviceConfiguration));
 187         } catch (Throwable ignored) {
 188             groupsV2Operations = null;
 189         }
 190         return new SignalServiceAccountManager(serviceConfiguration,
 191                 new DynamicCredentialsProvider(account.getUuid(), account.getUsername(), account.getPassword(), null, account.getDeviceId()),
 192                 userAgent,
 193                 groupsV2Operations,
 194                 timer);
 195     }
 196
 197     private IdentityKeyPair getIdentityKeyPair() {
 198         return account.getSignalProtocolStore().getIdentityKeyPair();
 199     }
 200
 201     public int getDeviceId() {
 202         return account.getDeviceId();
 203     }
 204
 205     private String getMessageCachePath() {
 206         return pathConfig.getDataPath() + "/" + account.getUsername() + ".d/msg-cache";
 207     }
 208
 209     private String getMessageCachePath(String sender) {
 210         if (sender == null || sender.isEmpty()) {
 211             return getMessageCachePath();
 212         }
 213
 214         return getMessageCachePath() + "/" + sender.replace("/", "_");
 215     }
 216
 217     private File getMessageCacheFile(String sender, long now, long timestamp) throws IOException {
 218         String cachePath = getMessageCachePath(sender);
 219         IOUtils.createPrivateDirectories(cachePath);
 220         return new File(cachePath + "/" + now + "_" + timestamp);
 221     }
 222
 223     public static Manager init(String username, String settingsPath, SignalServiceConfiguration serviceConfiguration, String userAgent) throws IOException {
 224         PathConfig pathConfig = PathConfig.createDefault(settingsPath);
 225
 226         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 227             IdentityKeyPair identityKey = KeyHelper.generateIdentityKeyPair();
 228             int registrationId = KeyHelper.generateRegistrationId(false);
 229
 230             ProfileKey profileKey = KeyUtils.createProfileKey();
 231             SignalAccount account = SignalAccount.create(pathConfig.getDataPath(), username, identityKey, registrationId, profileKey);
 232             account.save();
 233
 234             return new Manager(account, pathConfig, serviceConfiguration, userAgent);
 235         }
 236
 237         SignalAccount account = SignalAccount.load(pathConfig.getDataPath(), username);
 238
 239         Manager m = new Manager(account, pathConfig, serviceConfiguration, userAgent);
 240
 241         m.migrateLegacyConfigs();
 242
 243         return m;
 244     }
 245
 246     private void migrateLegacyConfigs() {
 247         // Copy group avatars that were previously stored in the attachments folder
 248         // to the new avatar folder
 249         if (JsonGroupStore.groupsWithLegacyAvatarId.size() > 0) {
 250             for (GroupInfo g : JsonGroupStore.groupsWithLegacyAvatarId) {
 251                 File avatarFile = getGroupAvatarFile(g.groupId);
 252                 File attachmentFile = getAttachmentFile(new SignalServiceAttachmentRemoteId(g.getAvatarId()));
 253                 if (!avatarFile.exists() && attachmentFile.exists()) {
 254                     try {
 255                         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
 256                         Files.copy(attachmentFile.toPath(), avatarFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 257                     } catch (Exception e) {
 258                         // Ignore
 259                     }
 260                 }
 261             }
 262             JsonGroupStore.groupsWithLegacyAvatarId.clear();
 263             account.save();
 264         }
 265         if (account.getProfileKey() == null) {
 266             // Old config file, creating new profile key
 267             account.setProfileKey(KeyUtils.createProfileKey());
 268             account.save();
 269         }
 270         // Store profile keys only in profile store
 271         for (ContactInfo contact : account.getContactStore().getContacts()) {
 272             String profileKeyString = contact.profileKey;
 273             if (profileKeyString == null) {
 274                 continue;
 275             }
 276             final ProfileKey profileKey;
 277             try {
 278                 profileKey = new ProfileKey(Base64.decode(profileKeyString));
 279             } catch (InvalidInputException | IOException e) {
 280                 continue;
 281             }
 282             contact.profileKey = null;
 283             account.getProfileStore().storeProfileKey(contact.getAddress(), profileKey);
 284         }
 285     }
 286
 287     public void checkAccountState() throws IOException {
 288         if (account.isRegistered()) {
 289             if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 290                 refreshPreKeys();
 291                 account.save();
 292             }
 293             if (account.getUuid() == null) {
 294                 account.setUuid(accountManager.getOwnUuid());
 295                 account.save();
 296             }
 297         }
 298     }
 299
 300     public boolean isRegistered() {
 301         return account.isRegistered();
 302     }
 303
 304     public void register(boolean voiceVerification) throws IOException {
 305         account.setPassword(KeyUtils.createPassword());
 306
 307         // Resetting UUID, because registering doesn't work otherwise
 308         account.setUuid(null);
 309         accountManager = createSignalServiceAccountManager();
 310
 311         if (voiceVerification) {
 312             accountManager.requestVoiceVerificationCode(Locale.getDefault(), Optional.absent(), Optional.absent());
 313         } else {
 314             accountManager.requestSmsVerificationCode(false, Optional.absent(), Optional.absent());
 315         }
 316
 317         account.setRegistered(false);
 318         account.save();
 319     }
 320
 321     public void updateAccountAttributes() throws IOException {
 322         accountManager.setAccountAttributes(account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, account.getRegistrationLockPin(), account.getRegistrationLock(), getSelfUnidentifiedAccessKey(), false, capabilities, discoverableByPhoneNumber);
 323     }
 324
 325     public void setProfile(String name, File avatar) throws IOException {
 326         try (final StreamDetails streamDetails = avatar == null ? null : Utils.createStreamDetailsFromFile(avatar)) {
 327             accountManager.setVersionedProfile(account.getUuid(), account.getProfileKey(), name, streamDetails);
 328         }
 329     }
 330
 331     public void unregister() throws IOException {
 332         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 333         // If this is the master device, other users can't send messages to this number anymore.
 334         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 335         accountManager.setGcmId(Optional.absent());
 336
 337         account.setRegistered(false);
 338         account.save();
 339     }
 340
 341     public List<DeviceInfo> getLinkedDevices() throws IOException {
 342         List<DeviceInfo> devices = accountManager.getDevices();
 343         account.setMultiDevice(devices.size() > 1);
 344         account.save();
 345         return devices;
 346     }
 347
 348     public void removeLinkedDevices(int deviceId) throws IOException {
 349         accountManager.removeDevice(deviceId);
 350         List<DeviceInfo> devices = accountManager.getDevices();
 351         account.setMultiDevice(devices.size() > 1);
 352         account.save();
 353     }
 354
 355     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 356         Utils.DeviceLinkInfo info = Utils.parseDeviceLinkUri(linkUri);
 357
 358         addDevice(info.deviceIdentifier, info.deviceKey);
 359     }
 360
 361     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 362         IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 363         String verificationCode = accountManager.getNewDeviceVerificationCode();
 364
 365         accountManager.addDevice(deviceIdentifier, deviceKey, identityKeyPair, Optional.of(account.getProfileKey().serialize()), verificationCode);
 366         account.setMultiDevice(true);
 367         account.save();
 368     }
 369
 370     private List<PreKeyRecord> generatePreKeys() {
 371         List<PreKeyRecord> records = new ArrayList<>(ServiceConfig.PREKEY_BATCH_SIZE);
 372
 373         final int offset = account.getPreKeyIdOffset();
 374         for (int i = 0; i < ServiceConfig.PREKEY_BATCH_SIZE; i++) {
 375             int preKeyId = (offset + i) % Medium.MAX_VALUE;
 376             ECKeyPair keyPair = Curve.generateKeyPair();
 377             PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);
 378
 379             records.add(record);
 380         }
 381
 382         account.addPreKeys(records);
 383         account.save();
 384
 385         return records;
 386     }
 387
 388     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 389         try {
 390             ECKeyPair keyPair = Curve.generateKeyPair();
 391             byte[] signature = Curve.calculateSignature(identityKeyPair.getPrivateKey(), keyPair.getPublicKey().serialize());
 392             SignedPreKeyRecord record = new SignedPreKeyRecord(account.getNextSignedPreKeyId(), System.currentTimeMillis(), keyPair, signature);
 393
 394             account.addSignedPreKey(record);
 395             account.save();
 396
 397             return record;
 398         } catch (InvalidKeyException e) {
 399             throw new AssertionError(e);
 400         }
 401     }
 402
 403     public void verifyAccount(String verificationCode, String pin) throws IOException {
 404         verificationCode = verificationCode.replace("-", "");
 405         account.setSignalingKey(KeyUtils.createSignalingKey());
 406         // TODO make unrestricted unidentified access configurable
 407         VerifyAccountResponse response = accountManager.verifyAccountWithCode(verificationCode, account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, pin, null, getSelfUnidentifiedAccessKey(), false, capabilities, discoverableByPhoneNumber);
 408
 409         UUID uuid = UuidUtil.parseOrNull(response.getUuid());
 410         // TODO response.isStorageCapable()
 411         //accountManager.setGcmId(Optional.of(GoogleCloudMessaging.getInstance(this).register(REGISTRATION_ID)));
 412         account.setRegistered(true);
 413         account.setUuid(uuid);
 414         account.setRegistrationLockPin(pin);
 415         account.getSignalProtocolStore().saveIdentity(account.getSelfAddress(), getIdentityKeyPair().getPublicKey(), TrustLevel.TRUSTED_VERIFIED);
 416
 417         refreshPreKeys();
 418         account.save();
 419     }
 420
 421     public void setRegistrationLockPin(Optional<String> pin) throws IOException {
 422         if (pin.isPresent()) {
 423             account.setRegistrationLockPin(pin.get());
 424             throw new RuntimeException("Not implemented anymore, will be replaced with KBS");
 425         } else {
 426             account.setRegistrationLockPin(null);
 427             accountManager.removeRegistrationLockV1();
 428         }
 429         account.save();
 430     }
 431
 432     void refreshPreKeys() throws IOException {
 433         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 434         final IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 435         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 436
 437         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 438     }
 439
 440     private SignalServiceMessageReceiver getMessageReceiver() {
 441         // TODO implement ZkGroup support
 442         final ClientZkProfileOperations clientZkProfileOperations = null;
 443         return new SignalServiceMessageReceiver(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(), account.getDeviceId(), account.getSignalingKey(), userAgent, null, timer, clientZkProfileOperations);
 444     }
 445
 446     private SignalServiceMessageSender getMessageSender() {
 447         // TODO implement ZkGroup support
 448         final ClientZkProfileOperations clientZkProfileOperations = null;
 449         final ExecutorService executor = null;
 450         return new SignalServiceMessageSender(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(),
 451                 account.getDeviceId(), account.getSignalProtocolStore(), userAgent, account.isMultiDevice(), Optional.fromNullable(messagePipe), Optional.fromNullable(unidentifiedMessagePipe), Optional.absent(), clientZkProfileOperations, executor, ServiceConfig.MAX_ENVELOPE_SIZE);
 452     }
 453
 454     private SignalServiceProfile getEncryptedRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess) throws IOException {
 455         SignalServiceMessagePipe pipe = unidentifiedMessagePipe != null && unidentifiedAccess.isPresent() ? unidentifiedMessagePipe
 456                 : messagePipe;
 457
 458         if (pipe != null) {
 459             try {
 460                 return pipe.getProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).get(10, TimeUnit.SECONDS).getProfile();
 461             } catch (IOException | InterruptedException | ExecutionException | TimeoutException ignored) {
 462             }
 463         }
 464
 465         SignalServiceMessageReceiver receiver = getMessageReceiver();
 466         try {
 467             return receiver.retrieveProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).get(10, TimeUnit.SECONDS).getProfile();
 468         } catch (InterruptedException | ExecutionException | TimeoutException e) {
 469             throw new IOException("Failed to retrieve profile", e);
 470         }
 471     }
 472
 473     private SignalProfile getRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess, ProfileKey profileKey) throws IOException {
 474         SignalProfileEntry profileEntry = account.getProfileStore().getProfile(address);
 475         long now = new Date().getTime();
 476         // Profiles are cache for 24h before retrieving them again
 477         if (profileEntry == null || profileEntry.getProfile() == null || now - profileEntry.getLastUpdateTimestamp() > 24 * 60 * 60 * 1000) {
 478             SignalProfile profile = retrieveRecipientProfile(address, unidentifiedAccess, profileKey);
 479             account.getProfileStore().updateProfile(address, profileKey, now, profile);
 480             return profile;
 481         }
 482         return profileEntry.getProfile();
 483     }
 484
 485     private SignalProfile retrieveRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess, ProfileKey profileKey) throws IOException {
 486         final SignalServiceProfile encryptedProfile = getEncryptedRecipientProfile(address, unidentifiedAccess);
 487
 488         File avatarFile = null;
 489         try {
 490             avatarFile = encryptedProfile.getAvatar() == null ? null : retrieveProfileAvatar(address, encryptedProfile.getAvatar(), profileKey);
 491         } catch (Throwable e) {
 492             System.err.println("Failed to retrieve profile avatar, ignoring: " + e.getMessage());
 493         }
 494
 495         ProfileCipher profileCipher = new ProfileCipher(profileKey);
 496         try {
 497             return new SignalProfile(
 498                     encryptedProfile.getIdentityKey(),
 499                     encryptedProfile.getName() == null ? null : new String(profileCipher.decryptName(Base64.decode(encryptedProfile.getName()))),
 500                     avatarFile,
 501                     encryptedProfile.getUnidentifiedAccess() == null || !profileCipher.verifyUnidentifiedAccess(Base64.decode(encryptedProfile.getUnidentifiedAccess())) ? null : encryptedProfile.getUnidentifiedAccess(),
 502                     encryptedProfile.isUnrestrictedUnidentifiedAccess(),
 503                     encryptedProfile.getCapabilities());
 504         } catch (InvalidCiphertextException e) {
 505             return null;
 506         }
 507     }
 508
 509     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(byte[] groupId) throws IOException {
 510         File file = getGroupAvatarFile(groupId);
 511         if (!file.exists()) {
 512             return Optional.absent();
 513         }
 514
 515         return Optional.of(Utils.createAttachment(file));
 516     }
 517
 518     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(String number) throws IOException {
 519         File file = getContactAvatarFile(number);
 520         if (!file.exists()) {
 521             return Optional.absent();
 522         }
 523
 524         return Optional.of(Utils.createAttachment(file));
 525     }
 526
 527     private GroupInfo getGroupForSending(byte[] groupId) throws GroupNotFoundException, NotAGroupMemberException {
 528         GroupInfo g = account.getGroupStore().getGroup(groupId);
 529         if (g == null) {
 530             throw new GroupNotFoundException(groupId);
 531         }
 532         if (!g.isMember(account.getSelfAddress())) {
 533             throw new NotAGroupMemberException(groupId, g.name);
 534         }
 535         return g;
 536     }
 537
 538     public List<GroupInfo> getGroups() {
 539         return account.getGroupStore().getGroups();
 540     }
 541
 542     public long sendGroupMessage(String messageText, List<String> attachments,
 543                                  byte[] groupId)
 544             throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 545         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 546         if (attachments != null) {
 547             messageBuilder.withAttachments(Utils.getSignalServiceAttachments(attachments));
 548         }
 549         if (groupId != null) {
 550             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 551                     .withId(groupId)
 552                     .build();
 553             messageBuilder.asGroupMessage(group);
 554         }
 555
 556         final GroupInfo g = getGroupForSending(groupId);
 557
 558         messageBuilder.withExpiration(g.messageExpirationTime);
 559
 560         return sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 561     }
 562
 563     public void sendGroupMessageReaction(String emoji, boolean remove, String targetAuthor,
 564                                          long targetSentTimestamp, byte[] groupId)
 565             throws IOException, EncapsulatedExceptions, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 566         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, canonicalizeAndResolveSignalServiceAddress(targetAuthor), targetSentTimestamp);
 567         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 568                 .withReaction(reaction);
 569         if (groupId != null) {
 570             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 571                     .withId(groupId)
 572                     .build();
 573             messageBuilder.asGroupMessage(group);
 574         }
 575         final GroupInfo g = getGroupForSending(groupId);
 576         sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 577     }
 578
 579     public void sendQuitGroupMessage(byte[] groupId) throws GroupNotFoundException, IOException, EncapsulatedExceptions, NotAGroupMemberException {
 580         SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 581                 .withId(groupId)
 582                 .build();
 583
 584         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 585                 .asGroupMessage(group);
 586
 587         final GroupInfo g = getGroupForSending(groupId);
 588         g.removeMember(account.getSelfAddress());
 589         account.getGroupStore().updateGroup(g);
 590
 591         sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 592     }
 593
 594     private byte[] sendUpdateGroupMessage(byte[] groupId, String name, Collection<SignalServiceAddress> members, String avatarFile) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 595         GroupInfo g;
 596         if (groupId == null) {
 597             // Create new group
 598             g = new GroupInfo(KeyUtils.createGroupId());
 599             g.addMembers(Collections.singleton(account.getSelfAddress()));
 600         } else {
 601             g = getGroupForSending(groupId);
 602         }
 603
 604         if (name != null) {
 605             g.name = name;
 606         }
 607
 608         if (members != null) {
 609             final Set<String> newE164Members = new HashSet<>();
 610             for (SignalServiceAddress member : members) {
 611                 if (g.isMember(member) || !member.getNumber().isPresent()) {
 612                     continue;
 613                 }
 614                 newE164Members.add(member.getNumber().get());
 615             }
 616
 617             final List<ContactTokenDetails> contacts = accountManager.getContacts(newE164Members);
 618             if (contacts.size() != newE164Members.size()) {
 619                 // Some of the new members are not registered on Signal
 620                 for (ContactTokenDetails contact : contacts) {
 621                     newE164Members.remove(contact.getNumber());
 622                 }
 623                 throw new IOException("Failed to add members " + Util.join(", ", newE164Members) + " to group: Not registered on Signal");
 624             }
 625
 626             g.addMembers(members);
 627         }
 628
 629         if (avatarFile != null) {
 630             IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
 631             File aFile = getGroupAvatarFile(g.groupId);
 632             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 633         }
 634
 635         account.getGroupStore().updateGroup(g);
 636
 637         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 638
 639         sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 640         return g.groupId;
 641     }
 642
 643     void sendUpdateGroupMessage(byte[] groupId, SignalServiceAddress recipient) throws IOException, EncapsulatedExceptions, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 644         if (groupId == null) {
 645             return;
 646         }
 647         GroupInfo g = getGroupForSending(groupId);
 648
 649         if (!g.isMember(recipient)) {
 650             return;
 651         }
 652
 653         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 654
 655         // Send group message only to the recipient who requested it
 656         sendMessageLegacy(messageBuilder, Collections.singleton(recipient));
 657     }
 658
 659     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfo g) throws AttachmentInvalidException {
 660         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 661                 .withId(g.groupId)
 662                 .withName(g.name)
 663                 .withMembers(new ArrayList<>(g.getMembers()));
 664
 665         File aFile = getGroupAvatarFile(g.groupId);
 666         if (aFile.exists()) {
 667             try {
 668                 group.withAvatar(Utils.createAttachment(aFile));
 669             } catch (IOException e) {
 670                 throw new AttachmentInvalidException(aFile.toString(), e);
 671             }
 672         }
 673
 674         return SignalServiceDataMessage.newBuilder()
 675                 .asGroupMessage(group.build())
 676                 .withExpiration(g.messageExpirationTime);
 677     }
 678
 679     void sendGroupInfoRequest(byte[] groupId, SignalServiceAddress recipient) throws IOException, EncapsulatedExceptions {
 680         if (groupId == null) {
 681             return;
 682         }
 683
 684         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 685                 .withId(groupId);
 686
 687         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 688                 .asGroupMessage(group.build());
 689
 690         // Send group info request message to the recipient who sent us a message with this groupId
 691         sendMessageLegacy(messageBuilder, Collections.singleton(recipient));
 692     }
 693
 694     void sendReceipt(SignalServiceAddress remoteAddress, long messageId) throws IOException, UntrustedIdentityException {
 695         SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
 696                 Collections.singletonList(messageId),
 697                 System.currentTimeMillis());
 698
 699         getMessageSender().sendReceipt(remoteAddress, getAccessFor(remoteAddress), receiptMessage);
 700     }
 701
 702     public long sendMessage(String messageText, List<String> attachments,
 703                             List<String> recipients)
 704             throws IOException, EncapsulatedExceptions, AttachmentInvalidException, InvalidNumberException {
 705         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 706         if (attachments != null) {
 707             List<SignalServiceAttachment> attachmentStreams = Utils.getSignalServiceAttachments(attachments);
 708
 709             // Upload attachments here, so we only upload once even for multiple recipients
 710             SignalServiceMessageSender messageSender = getMessageSender();
 711             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 712             for (SignalServiceAttachment attachment : attachmentStreams) {
 713                 if (attachment.isStream()) {
 714                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 715                 } else if (attachment.isPointer()) {
 716                     attachmentPointers.add(attachment.asPointer());
 717                 }
 718             }
 719
 720             messageBuilder.withAttachments(attachmentPointers);
 721         }
 722         return sendMessageLegacy(messageBuilder, getSignalServiceAddresses(recipients));
 723     }
 724
 725     public void sendMessageReaction(String emoji, boolean remove, String targetAuthor,
 726                                     long targetSentTimestamp, List<String> recipients)
 727             throws IOException, EncapsulatedExceptions, InvalidNumberException {
 728         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, canonicalizeAndResolveSignalServiceAddress(targetAuthor), targetSentTimestamp);
 729         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 730                 .withReaction(reaction);
 731         sendMessageLegacy(messageBuilder, getSignalServiceAddresses(recipients));
 732     }
 733
 734     public void sendEndSessionMessage(List<String> recipients) throws IOException, EncapsulatedExceptions, InvalidNumberException {
 735         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 736                 .asEndSessionMessage();
 737
 738         final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
 739         try {
 740             sendMessageLegacy(messageBuilder, signalServiceAddresses);
 741         } catch (Exception e) {
 742             for (SignalServiceAddress address : signalServiceAddresses) {
 743                 handleEndSession(address);
 744             }
 745             account.save();
 746             throw e;
 747         }
 748     }
 749
 750     public String getContactName(String number) throws InvalidNumberException {
 751         ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));
 752         if (contact == null) {
 753             return "";
 754         } else {
 755             return contact.name;
 756         }
 757     }
 758
 759     public void setContactName(String number, String name) throws InvalidNumberException {
 760         final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 761         ContactInfo contact = account.getContactStore().getContact(address);
 762         if (contact == null) {
 763             contact = new ContactInfo(address);
 764         }
 765         contact.name = name;
 766         account.getContactStore().updateContact(contact);
 767         account.save();
 768     }
 769
 770     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
 771         setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
 772     }
 773
 774     private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
 775         ContactInfo contact = account.getContactStore().getContact(address);
 776         if (contact == null) {
 777             contact = new ContactInfo(address);
 778         }
 779         contact.blocked = blocked;
 780         account.getContactStore().updateContact(contact);
 781         account.save();
 782     }
 783
 784     public void setGroupBlocked(final byte[] groupId, final boolean blocked) throws GroupNotFoundException {
 785         GroupInfo group = getGroup(groupId);
 786         if (group == null) {
 787             throw new GroupNotFoundException(groupId);
 788         }
 789
 790         group.blocked = blocked;
 791         account.getGroupStore().updateGroup(group);
 792         account.save();
 793     }
 794
 795     public byte[] updateGroup(byte[] groupId, String name, List<String> members, String avatar) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 796         if (groupId.length == 0) {
 797             groupId = null;
 798         }
 799         if (name.isEmpty()) {
 800             name = null;
 801         }
 802         if (members.isEmpty()) {
 803             members = null;
 804         }
 805         if (avatar.isEmpty()) {
 806             avatar = null;
 807         }
 808         return sendUpdateGroupMessage(groupId, name, members == null ? null : getSignalServiceAddresses(members), avatar);
 809     }
 810
 811     /**
 812      * Change the expiration timer for a contact
 813      */
 814     public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) throws IOException {
 815         ContactInfo contact = account.getContactStore().getContact(address);
 816         contact.messageExpirationTime = messageExpirationTimer;
 817         account.getContactStore().updateContact(contact);
 818         sendExpirationTimerUpdate(address);
 819         account.save();
 820     }
 821
 822     private void sendExpirationTimerUpdate(SignalServiceAddress address) throws IOException {
 823         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 824                 .asExpirationUpdate();
 825         sendMessage(messageBuilder, Collections.singleton(address));
 826     }
 827
 828     /**
 829      * Change the expiration timer for a contact
 830      */
 831     public void setExpirationTimer(String number, int messageExpirationTimer) throws IOException, InvalidNumberException {
 832         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 833         setExpirationTimer(address, messageExpirationTimer);
 834     }
 835
 836     /**
 837      * Change the expiration timer for a group
 838      */
 839     public void setExpirationTimer(byte[] groupId, int messageExpirationTimer) {
 840         GroupInfo g = account.getGroupStore().getGroup(groupId);
 841         g.messageExpirationTime = messageExpirationTimer;
 842         account.getGroupStore().updateGroup(g);
 843     }
 844
 845     /**
 846      * Upload the sticker pack from path.
 847      *
 848      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
 849      * @return if successful, returns the URL to install the sticker pack in the signal app
 850      */
 851     public String uploadStickerPack(String path) throws IOException, StickerPackInvalidException {
 852         SignalServiceStickerManifestUpload manifest = getSignalServiceStickerManifestUpload(path);
 853
 854         SignalServiceMessageSender messageSender = getMessageSender();
 855
 856         byte[] packKey = KeyUtils.createStickerUploadKey();
 857         String packId = messageSender.uploadStickerManifest(manifest, packKey);
 858
 859         try {
 860             return new URI("https", "signal.art", "/addstickers/", "pack_id=" + URLEncoder.encode(packId, "utf-8") + "&pack_key=" + URLEncoder.encode(Hex.toStringCondensed(packKey), "utf-8"))
 861                     .toString();
 862         } catch (URISyntaxException e) {
 863             throw new AssertionError(e);
 864         }
 865     }
 866
 867     private SignalServiceStickerManifestUpload getSignalServiceStickerManifestUpload(final String path) throws IOException, StickerPackInvalidException {
 868         ZipFile zip = null;
 869         String rootPath = null;
 870
 871         final File file = new File(path);
 872         if (file.getName().endsWith(".zip")) {
 873             zip = new ZipFile(file);
 874         } else if (file.getName().equals("manifest.json")) {
 875             rootPath = file.getParent();
 876         } else {
 877             throw new StickerPackInvalidException("Could not find manifest.json");
 878         }
 879
 880         JsonStickerPack pack = parseStickerPack(rootPath, zip);
 881
 882         if (pack.stickers == null) {
 883             throw new StickerPackInvalidException("Must set a 'stickers' field.");
 884         }
 885
 886         if (pack.stickers.isEmpty()) {
 887             throw new StickerPackInvalidException("Must include stickers.");
 888         }
 889
 890         List<StickerInfo> stickers = new ArrayList<>(pack.stickers.size());
 891         for (JsonStickerPack.JsonSticker sticker : pack.stickers) {
 892             if (sticker.file == null) {
 893                 throw new StickerPackInvalidException("Must set a 'file' field on each sticker.");
 894             }
 895
 896             Pair<InputStream, Long> data;
 897             try {
 898                 data = getInputStreamAndLength(rootPath, zip, sticker.file);
 899             } catch (IOException ignored) {
 900                 throw new StickerPackInvalidException("Could not find find " + sticker.file);
 901             }
 902
 903             String contentType = Utils.getFileMimeType(new File(sticker.file), null);
 904             StickerInfo stickerInfo = new StickerInfo(data.first(), data.second(), Optional.fromNullable(sticker.emoji).or(""), contentType);
 905             stickers.add(stickerInfo);
 906         }
 907
 908         StickerInfo cover = null;
 909         if (pack.cover != null) {
 910             if (pack.cover.file == null) {
 911                 throw new StickerPackInvalidException("Must set a 'file' field on the cover.");
 912             }
 913
 914             Pair<InputStream, Long> data;
 915             try {
 916                 data = getInputStreamAndLength(rootPath, zip, pack.cover.file);
 917             } catch (IOException ignored) {
 918                 throw new StickerPackInvalidException("Could not find find " + pack.cover.file);
 919             }
 920
 921             String contentType = Utils.getFileMimeType(new File(pack.cover.file), null);
 922             cover = new StickerInfo(data.first(), data.second(), Optional.fromNullable(pack.cover.emoji).or(""), contentType);
 923         }
 924
 925         return new SignalServiceStickerManifestUpload(
 926                 pack.title,
 927                 pack.author,
 928                 cover,
 929                 stickers);
 930     }
 931
 932     private static JsonStickerPack parseStickerPack(String rootPath, ZipFile zip) throws IOException {
 933         InputStream inputStream;
 934         if (zip != null) {
 935             inputStream = zip.getInputStream(zip.getEntry("manifest.json"));
 936         } else {
 937             inputStream = new FileInputStream((new File(rootPath, "manifest.json")));
 938         }
 939         return new ObjectMapper().readValue(inputStream, JsonStickerPack.class);
 940     }
 941
 942     private static Pair<InputStream, Long> getInputStreamAndLength(final String rootPath, final ZipFile zip, final String subfile) throws IOException {
 943         if (zip != null) {
 944             final ZipEntry entry = zip.getEntry(subfile);
 945             return new Pair<>(zip.getInputStream(entry), entry.getSize());
 946         } else {
 947             final File file = new File(rootPath, subfile);
 948             return new Pair<>(new FileInputStream(file), file.length());
 949         }
 950     }
 951
 952     void requestSyncGroups() throws IOException {
 953         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS).build();
 954         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 955         try {
 956             sendSyncMessage(message);
 957         } catch (UntrustedIdentityException e) {
 958             e.printStackTrace();
 959         }
 960     }
 961
 962     void requestSyncContacts() throws IOException {
 963         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS).build();
 964         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 965         try {
 966             sendSyncMessage(message);
 967         } catch (UntrustedIdentityException e) {
 968             e.printStackTrace();
 969         }
 970     }
 971
 972     void requestSyncBlocked() throws IOException {
 973         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED).build();
 974         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 975         try {
 976             sendSyncMessage(message);
 977         } catch (UntrustedIdentityException e) {
 978             e.printStackTrace();
 979         }
 980     }
 981
 982     void requestSyncConfiguration() throws IOException {
 983         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION).build();
 984         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 985         try {
 986             sendSyncMessage(message);
 987         } catch (UntrustedIdentityException e) {
 988             e.printStackTrace();
 989         }
 990     }
 991
 992     private byte[] getSenderCertificate() {
 993         // TODO support UUID capable sender certificates
 994         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
 995         byte[] certificate;
 996         try {
 997             certificate = accountManager.getSenderCertificate();
 998         } catch (IOException e) {
 999             System.err.println("Failed to get sender certificate: " + e);
1000             return null;
1001         }
1002         // TODO cache for a day
1003         return certificate;
1004     }
1005
1006     private byte[] getSelfUnidentifiedAccessKey() {
1007         return UnidentifiedAccess.deriveAccessKeyFrom(account.getProfileKey());
1008     }
1009
1010     private byte[] getTargetUnidentifiedAccessKey(SignalServiceAddress recipient) {
1011         ProfileKey theirProfileKey = account.getProfileStore().getProfileKey(recipient);
1012         if (theirProfileKey == null) {
1013             return null;
1014         }
1015         SignalProfile targetProfile;
1016         try {
1017             targetProfile = getRecipientProfile(recipient, Optional.absent(), theirProfileKey);
1018         } catch (IOException e) {
1019             System.err.println("Failed to get recipient profile: " + e);
1020             return null;
1021         }
1022
1023         if (targetProfile == null || targetProfile.getUnidentifiedAccess() == null) {
1024             return null;
1025         }
1026
1027         if (targetProfile.isUnrestrictedUnidentifiedAccess()) {
1028             return KeyUtils.createUnrestrictedUnidentifiedAccess();
1029         }
1030
1031         return UnidentifiedAccess.deriveAccessKeyFrom(theirProfileKey);
1032     }
1033
1034     private Optional<UnidentifiedAccessPair> getAccessForSync() {
1035         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
1036         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
1037
1038         if (selfUnidentifiedAccessKey == null || selfUnidentifiedAccessCertificate == null) {
1039             return Optional.absent();
1040         }
1041
1042         try {
1043             return Optional.of(new UnidentifiedAccessPair(
1044                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate),
1045                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate)
1046             ));
1047         } catch (InvalidCertificateException e) {
1048             return Optional.absent();
1049         }
1050     }
1051
1052     private List<Optional<UnidentifiedAccessPair>> getAccessFor(Collection<SignalServiceAddress> recipients) {
1053         List<Optional<UnidentifiedAccessPair>> result = new ArrayList<>(recipients.size());
1054         for (SignalServiceAddress recipient : recipients) {
1055             result.add(getAccessFor(recipient));
1056         }
1057         return result;
1058     }
1059
1060     private Optional<UnidentifiedAccessPair> getAccessFor(SignalServiceAddress recipient) {
1061         byte[] recipientUnidentifiedAccessKey = getTargetUnidentifiedAccessKey(recipient);
1062         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
1063         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
1064
1065         if (recipientUnidentifiedAccessKey == null || selfUnidentifiedAccessKey == null || selfUnidentifiedAccessCertificate == null) {
1066             return Optional.absent();
1067         }
1068
1069         try {
1070             return Optional.of(new UnidentifiedAccessPair(
1071                     new UnidentifiedAccess(recipientUnidentifiedAccessKey, selfUnidentifiedAccessCertificate),
1072                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate)
1073             ));
1074         } catch (InvalidCertificateException e) {
1075             return Optional.absent();
1076         }
1077     }
1078
1079     private Optional<UnidentifiedAccess> getUnidentifiedAccess(SignalServiceAddress recipient) {
1080         Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
1081
1082         if (unidentifiedAccess.isPresent()) {
1083             return unidentifiedAccess.get().getTargetUnidentifiedAccess();
1084         }
1085
1086         return Optional.absent();
1087     }
1088
1089     private void sendSyncMessage(SignalServiceSyncMessage message)
1090             throws IOException, UntrustedIdentityException {
1091         SignalServiceMessageSender messageSender = getMessageSender();
1092         try {
1093             messageSender.sendMessage(message, getAccessForSync());
1094         } catch (UntrustedIdentityException e) {
1095             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1096             throw e;
1097         }
1098     }
1099
1100     /**
1101      * This method throws an EncapsulatedExceptions exception instead of returning a list of SendMessageResult.
1102      */
1103     private long sendMessageLegacy(SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients)
1104             throws EncapsulatedExceptions, IOException {
1105         final long timestamp = System.currentTimeMillis();
1106         messageBuilder.withTimestamp(timestamp);
1107         List<SendMessageResult> results = sendMessage(messageBuilder, recipients);
1108
1109         List<UntrustedIdentityException> untrustedIdentities = new LinkedList<>();
1110         List<UnregisteredUserException> unregisteredUsers = new LinkedList<>();
1111         List<NetworkFailureException> networkExceptions = new LinkedList<>();
1112
1113         for (SendMessageResult result : results) {
1114             if (result.isUnregisteredFailure()) {
1115                 unregisteredUsers.add(new UnregisteredUserException(result.getAddress().getLegacyIdentifier(), null));
1116             } else if (result.isNetworkFailure()) {
1117                 networkExceptions.add(new NetworkFailureException(result.getAddress().getLegacyIdentifier(), null));
1118             } else if (result.getIdentityFailure() != null) {
1119                 untrustedIdentities.add(new UntrustedIdentityException("Untrusted", result.getAddress().getLegacyIdentifier(), result.getIdentityFailure().getIdentityKey()));
1120             }
1121         }
1122         if (!untrustedIdentities.isEmpty() || !unregisteredUsers.isEmpty() || !networkExceptions.isEmpty()) {
1123             throw new EncapsulatedExceptions(untrustedIdentities, unregisteredUsers, networkExceptions);
1124         }
1125         return timestamp;
1126     }
1127
1128     private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1129         final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
1130
1131         for (String number : numbers) {
1132             signalServiceAddresses.add(canonicalizeAndResolveSignalServiceAddress(number));
1133         }
1134         return signalServiceAddresses;
1135     }
1136
1137     private List<SendMessageResult> sendMessage(SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients)
1138             throws IOException {
1139         if (messagePipe == null) {
1140             messagePipe = getMessageReceiver().createMessagePipe();
1141         }
1142         if (unidentifiedMessagePipe == null) {
1143             unidentifiedMessagePipe = getMessageReceiver().createUnidentifiedMessagePipe();
1144         }
1145         SignalServiceDataMessage message = null;
1146         try {
1147             message = messageBuilder.build();
1148             if (message.getGroupContext().isPresent()) {
1149                 try {
1150                     SignalServiceMessageSender messageSender = getMessageSender();
1151                     final boolean isRecipientUpdate = false;
1152                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients), getAccessFor(recipients), isRecipientUpdate, message);
1153                     for (SendMessageResult r : result) {
1154                         if (r.getIdentityFailure() != null) {
1155                             account.getSignalProtocolStore().saveIdentity(r.getAddress(), r.getIdentityFailure().getIdentityKey(), TrustLevel.UNTRUSTED);
1156                         }
1157                     }
1158                     return result;
1159                 } catch (UntrustedIdentityException e) {
1160                     account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1161                     return Collections.emptyList();
1162                 }
1163             } else {
1164                 // Send to all individually, so sync messages are sent correctly
1165                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1166                 for (SignalServiceAddress address : recipients) {
1167                     ContactInfo contact = account.getContactStore().getContact(address);
1168                     if (contact != null) {
1169                         messageBuilder.withExpiration(contact.messageExpirationTime);
1170                         messageBuilder.withProfileKey(account.getProfileKey().serialize());
1171                     } else {
1172                         messageBuilder.withExpiration(0);
1173                         messageBuilder.withProfileKey(null);
1174                     }
1175                     message = messageBuilder.build();
1176                     if (address.matches(account.getSelfAddress())) {
1177                         results.add(sendSelfMessage(message));
1178                     } else {
1179                         results.add(sendMessage(address, message));
1180                     }
1181                 }
1182                 return results;
1183             }
1184         } finally {
1185             if (message != null && message.isEndSession()) {
1186                 for (SignalServiceAddress recipient : recipients) {
1187                     handleEndSession(recipient);
1188                 }
1189             }
1190             account.save();
1191         }
1192     }
1193
1194     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1195         SignalServiceMessageSender messageSender = getMessageSender();
1196
1197         SignalServiceAddress recipient = account.getSelfAddress();
1198
1199         final Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
1200         SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1201                 message.getTimestamp(),
1202                 message,
1203                 message.getExpiresInSeconds(),
1204                 Collections.singletonMap(recipient, unidentifiedAccess.isPresent()),
1205                 false);
1206         SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1207
1208         try {
1209             long startTime = System.currentTimeMillis();
1210             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1211             return SendMessageResult.success(recipient, unidentifiedAccess.isPresent(), false, System.currentTimeMillis() - startTime);
1212         } catch (UntrustedIdentityException e) {
1213             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1214             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1215         }
1216     }
1217
1218     private SendMessageResult sendMessage(SignalServiceAddress address, SignalServiceDataMessage message) throws IOException {
1219         SignalServiceMessageSender messageSender = getMessageSender();
1220
1221         try {
1222             return messageSender.sendMessage(address, getAccessFor(address), message);
1223         } catch (UntrustedIdentityException e) {
1224             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1225             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1226         }
1227     }
1228
1229     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1230         SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(), account.getSignalProtocolStore(), Utils.getCertificateValidator());
1231         try {
1232             return cipher.decrypt(envelope);
1233         } catch (ProtocolUntrustedIdentityException e) {
1234             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1235                 org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e.getCause();
1236                 account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(identityException.getName()), identityException.getUntrustedIdentity(), TrustLevel.UNTRUSTED);
1237                 throw identityException;
1238             }
1239             throw new AssertionError(e);
1240         }
1241     }
1242
1243     private void handleEndSession(SignalServiceAddress source) {
1244         account.getSignalProtocolStore().deleteAllSessions(source);
1245     }
1246
1247     private List<HandleAction> handleSignalServiceDataMessage(SignalServiceDataMessage message, boolean isSync, SignalServiceAddress source, SignalServiceAddress destination, boolean ignoreAttachments) {
1248         List<HandleAction> actions = new ArrayList<>();
1249         if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1250             SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1251             GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
1252             switch (groupInfo.getType()) {
1253                 case UPDATE:
1254                     if (group == null) {
1255                         group = new GroupInfo(groupInfo.getGroupId());
1256                     }
1257
1258                     if (groupInfo.getAvatar().isPresent()) {
1259                         SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1260                         if (avatar.isPointer()) {
1261                             try {
1262                                 retrieveGroupAvatarAttachment(avatar.asPointer(), group.groupId);
1263                             } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1264                                 System.err.println("Failed to retrieve group avatar (" + avatar.asPointer().getRemoteId() + "): " + e.getMessage());
1265                             }
1266                         }
1267                     }
1268
1269                     if (groupInfo.getName().isPresent()) {
1270                         group.name = groupInfo.getName().get();
1271                     }
1272
1273                     if (groupInfo.getMembers().isPresent()) {
1274                         group.addMembers(groupInfo.getMembers().get()
1275                                 .stream()
1276                                 .map(this::resolveSignalServiceAddress)
1277                                 .collect(Collectors.toSet()));
1278                     }
1279
1280                     account.getGroupStore().updateGroup(group);
1281                     break;
1282                 case DELIVER:
1283                     if (group == null && !isSync) {
1284                         actions.add(new SendGroupInfoRequestAction(source, groupInfo.getGroupId()));
1285                     }
1286                     break;
1287                 case QUIT:
1288                     if (group != null) {
1289                         group.removeMember(source);
1290                         account.getGroupStore().updateGroup(group);
1291                     }
1292                     break;
1293                 case REQUEST_INFO:
1294                     if (group != null && !isSync) {
1295                         actions.add(new SendGroupUpdateAction(source, group.groupId));
1296                     }
1297                     break;
1298             }
1299         }
1300         final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;
1301         if (message.isEndSession()) {
1302             handleEndSession(conversationPartnerAddress);
1303         }
1304         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1305             if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1306                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1307                 GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
1308                 if (group == null) {
1309                     group = new GroupInfo(groupInfo.getGroupId());
1310                 }
1311                 if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1312                     group.messageExpirationTime = message.getExpiresInSeconds();
1313                     account.getGroupStore().updateGroup(group);
1314                 }
1315             } else {
1316                 ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
1317                 if (contact == null) {
1318                     contact = new ContactInfo(conversationPartnerAddress);
1319                 }
1320                 if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
1321                     contact.messageExpirationTime = message.getExpiresInSeconds();
1322                     account.getContactStore().updateContact(contact);
1323                 }
1324             }
1325         }
1326         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1327             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1328                 if (attachment.isPointer()) {
1329                     try {
1330                         retrieveAttachment(attachment.asPointer());
1331                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1332                         System.err.println("Failed to retrieve attachment (" + attachment.asPointer().getRemoteId() + "): " + e.getMessage());
1333                     }
1334                 }
1335             }
1336         }
1337         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1338             final ProfileKey profileKey;
1339             try {
1340                 profileKey = new ProfileKey(message.getProfileKey().get());
1341             } catch (InvalidInputException e) {
1342                 throw new AssertionError(e);
1343             }
1344             if (source.matches(account.getSelfAddress())) {
1345                 this.account.setProfileKey(profileKey);
1346             }
1347             this.account.getProfileStore().storeProfileKey(source, profileKey);
1348         }
1349         if (message.getPreviews().isPresent()) {
1350             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1351             for (SignalServiceDataMessage.Preview preview : previews) {
1352                 if (preview.getImage().isPresent() && preview.getImage().get().isPointer()) {
1353                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
1354                     try {
1355                         retrieveAttachment(attachment);
1356                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1357                         System.err.println("Failed to retrieve attachment (" + attachment.getRemoteId() + "): " + e.getMessage());
1358                     }
1359                 }
1360             }
1361         }
1362         return actions;
1363     }
1364
1365     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1366         final File cachePath = new File(getMessageCachePath());
1367         if (!cachePath.exists()) {
1368             return;
1369         }
1370         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
1371             if (!dir.isDirectory()) {
1372                 retryFailedReceivedMessage(handler, ignoreAttachments, dir);
1373                 continue;
1374             }
1375
1376             for (final File fileEntry : Objects.requireNonNull(dir.listFiles())) {
1377                 if (!fileEntry.isFile()) {
1378                     continue;
1379                 }
1380                 retryFailedReceivedMessage(handler, ignoreAttachments, fileEntry);
1381             }
1382             // Try to delete directory if empty
1383             dir.delete();
1384         }
1385     }
1386
1387     private void retryFailedReceivedMessage(final ReceiveMessageHandler handler, final boolean ignoreAttachments, final File fileEntry) {
1388         SignalServiceEnvelope envelope;
1389         try {
1390             envelope = Utils.loadEnvelope(fileEntry);
1391             if (envelope == null) {
1392                 return;
1393             }
1394         } catch (IOException e) {
1395             e.printStackTrace();
1396             return;
1397         }
1398         SignalServiceContent content = null;
1399         if (!envelope.isReceipt()) {
1400             try {
1401                 content = decryptMessage(envelope);
1402             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1403                 return;
1404             } catch (Exception er) {
1405                 // All other errors are not recoverable, so delete the cached message
1406                 try {
1407                     Files.delete(fileEntry.toPath());
1408                 } catch (IOException e) {
1409                     System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1410                 }
1411                 return;
1412             }
1413             List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1414             for (HandleAction action : actions) {
1415                 try {
1416                     action.execute(this);
1417                 } catch (Throwable e) {
1418                     e.printStackTrace();
1419                 }
1420             }
1421         }
1422         account.save();
1423         handler.handleMessage(envelope, content, null);
1424         try {
1425             Files.delete(fileEntry.toPath());
1426         } catch (IOException e) {
1427             System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1428         }
1429     }
1430
1431     public void receiveMessages(long timeout, TimeUnit unit, boolean returnOnTimeout, boolean ignoreAttachments, ReceiveMessageHandler handler) throws IOException {
1432         retryFailedReceivedMessages(handler, ignoreAttachments);
1433         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1434
1435         Set<HandleAction> queuedActions = null;
1436
1437         if (messagePipe == null) {
1438             messagePipe = messageReceiver.createMessagePipe();
1439         }
1440
1441         boolean hasCaughtUpWithOldMessages = false;
1442
1443         while (true) {
1444             SignalServiceEnvelope envelope;
1445             SignalServiceContent content = null;
1446             Exception exception = null;
1447             final long now = new Date().getTime();
1448             try {
1449                 Optional<SignalServiceEnvelope> result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1450                     // store message on disk, before acknowledging receipt to the server
1451                     try {
1452                         String source = envelope1.getSourceE164().isPresent() ? envelope1.getSourceE164().get() : "";
1453                         File cacheFile = getMessageCacheFile(source, now, envelope1.getTimestamp());
1454                         Utils.storeEnvelope(envelope1, cacheFile);
1455                     } catch (IOException e) {
1456                         System.err.println("Failed to store encrypted message in disk cache, ignoring: " + e.getMessage());
1457                     }
1458                 });
1459                 if (result.isPresent()) {
1460                     envelope = result.get();
1461                 } else {
1462                     // Received indicator that server queue is empty
1463                     hasCaughtUpWithOldMessages = true;
1464
1465                     if (queuedActions != null) {
1466                         for (HandleAction action : queuedActions) {
1467                             try {
1468                                 action.execute(this);
1469                             } catch (Throwable e) {
1470                                 e.printStackTrace();
1471                             }
1472                         }
1473                         account.save();
1474                         queuedActions.clear();
1475                         queuedActions = null;
1476                     }
1477
1478                     // Continue to wait another timeout for new messages
1479                     continue;
1480                 }
1481             } catch (TimeoutException e) {
1482                 if (returnOnTimeout)
1483                     return;
1484                 continue;
1485             } catch (InvalidVersionException e) {
1486                 System.err.println("Ignoring error: " + e.getMessage());
1487                 continue;
1488             }
1489
1490             if (envelope.hasSource()) {
1491                 // Store uuid if we don't have it already
1492                 SignalServiceAddress source = envelope.getSourceAddress();
1493                 resolveSignalServiceAddress(source);
1494             }
1495             if (!envelope.isReceipt()) {
1496                 try {
1497                     content = decryptMessage(envelope);
1498                 } catch (Exception e) {
1499                     exception = e;
1500                 }
1501                 List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1502                 if (hasCaughtUpWithOldMessages) {
1503                     for (HandleAction action : actions) {
1504                         try {
1505                             action.execute(this);
1506                         } catch (Throwable e) {
1507                             e.printStackTrace();
1508                         }
1509                     }
1510                 } else {
1511                     if (queuedActions == null) {
1512                         queuedActions = new HashSet<>();
1513                     }
1514                     queuedActions.addAll(actions);
1515                 }
1516             }
1517             account.save();
1518             if (!isMessageBlocked(envelope, content)) {
1519                 handler.handleMessage(envelope, content, exception);
1520             }
1521             if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
1522                 File cacheFile = null;
1523                 try {
1524                     String source = envelope.getSourceE164().isPresent() ? envelope.getSourceE164().get() : "";
1525                     cacheFile = getMessageCacheFile(source, now, envelope.getTimestamp());
1526                     Files.delete(cacheFile.toPath());
1527                     // Try to delete directory if empty
1528                     new File(getMessageCachePath()).delete();
1529                 } catch (IOException e) {
1530                     System.err.println("Failed to delete cached message file “" + cacheFile + "”: " + e.getMessage());
1531                 }
1532             }
1533         }
1534     }
1535
1536     private boolean isMessageBlocked(SignalServiceEnvelope envelope, SignalServiceContent content) {
1537         SignalServiceAddress source;
1538         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1539             source = envelope.getSourceAddress();
1540         } else if (content != null) {
1541             source = content.getSender();
1542         } else {
1543             return false;
1544         }
1545         ContactInfo sourceContact = account.getContactStore().getContact(source);
1546         if (sourceContact != null && sourceContact.blocked) {
1547             return true;
1548         }
1549
1550         if (content != null && content.getDataMessage().isPresent()) {
1551             SignalServiceDataMessage message = content.getDataMessage().get();
1552             if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1553                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1554                 GroupInfo group = getGroup(groupInfo.getGroupId());
1555                 if (groupInfo.getType() == SignalServiceGroup.Type.DELIVER && group != null && group.blocked) {
1556                     return true;
1557                 }
1558             }
1559         }
1560         return false;
1561     }
1562
1563     private List<HandleAction> handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments) {
1564         List<HandleAction> actions = new ArrayList<>();
1565         if (content != null) {
1566             SignalServiceAddress sender;
1567             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1568                 sender = envelope.getSourceAddress();
1569             } else {
1570                 sender = content.getSender();
1571             }
1572             // Store uuid if we don't have it already
1573             resolveSignalServiceAddress(sender);
1574
1575             if (content.getDataMessage().isPresent()) {
1576                 SignalServiceDataMessage message = content.getDataMessage().get();
1577
1578                 if (content.isNeedsReceipt()) {
1579                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1580                 }
1581
1582                 actions.addAll(handleSignalServiceDataMessage(message, false, sender, account.getSelfAddress(), ignoreAttachments));
1583             }
1584             if (content.getSyncMessage().isPresent()) {
1585                 account.setMultiDevice(true);
1586                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1587                 if (syncMessage.getSent().isPresent()) {
1588                     SentTranscriptMessage message = syncMessage.getSent().get();
1589                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(), true, sender, message.getDestination().orNull(), ignoreAttachments));
1590                 }
1591                 if (syncMessage.getRequest().isPresent()) {
1592                     RequestMessage rm = syncMessage.getRequest().get();
1593                     if (rm.isContactsRequest()) {
1594                         actions.add(SendSyncContactsAction.create());
1595                     }
1596                     if (rm.isGroupsRequest()) {
1597                         actions.add(SendSyncGroupsAction.create());
1598                     }
1599                     if (rm.isBlockedListRequest()) {
1600                         actions.add(SendSyncBlockedListAction.create());
1601                     }
1602                     // TODO Handle rm.isConfigurationRequest();
1603                 }
1604                 if (syncMessage.getGroups().isPresent()) {
1605                     File tmpFile = null;
1606                     try {
1607                         tmpFile = IOUtils.createTempFile();
1608                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups().get().asPointer(), tmpFile)) {
1609                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1610                             DeviceGroup g;
1611                             while ((g = s.read()) != null) {
1612                                 GroupInfo syncGroup = account.getGroupStore().getGroup(g.getId());
1613                                 if (syncGroup == null) {
1614                                     syncGroup = new GroupInfo(g.getId());
1615                                 }
1616                                 if (g.getName().isPresent()) {
1617                                     syncGroup.name = g.getName().get();
1618                                 }
1619                                 syncGroup.addMembers(g.getMembers()
1620                                         .stream()
1621                                         .map(this::resolveSignalServiceAddress)
1622                                         .collect(Collectors.toSet()));
1623                                 if (!g.isActive()) {
1624                                     syncGroup.removeMember(account.getSelfAddress());
1625                                 } else {
1626                                     // Add ourself to the member set as it's marked as active
1627                                     syncGroup.addMembers(Collections.singleton(account.getSelfAddress()));
1628                                 }
1629                                 syncGroup.blocked = g.isBlocked();
1630                                 if (g.getColor().isPresent()) {
1631                                     syncGroup.color = g.getColor().get();
1632                                 }
1633
1634                                 if (g.getAvatar().isPresent()) {
1635                                     retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId);
1636                                 }
1637                                 syncGroup.inboxPosition = g.getInboxPosition().orNull();
1638                                 syncGroup.archived = g.isArchived();
1639                                 account.getGroupStore().updateGroup(syncGroup);
1640                             }
1641                         }
1642                     } catch (Exception e) {
1643                         e.printStackTrace();
1644                     } finally {
1645                         if (tmpFile != null) {
1646                             try {
1647                                 Files.delete(tmpFile.toPath());
1648                             } catch (IOException e) {
1649                                 System.err.println("Failed to delete received groups temp file “" + tmpFile + "”: " + e.getMessage());
1650                             }
1651                         }
1652                     }
1653                 }
1654                 if (syncMessage.getBlockedList().isPresent()) {
1655                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1656                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1657                         setContactBlocked(resolveSignalServiceAddress(address), true);
1658                     }
1659                     for (byte[] groupId : blockedListMessage.getGroupIds()) {
1660                         try {
1661                             setGroupBlocked(groupId, true);
1662                         } catch (GroupNotFoundException e) {
1663                             System.err.println("BlockedListMessage contained groupID that was not found in GroupStore: " + Base64.encodeBytes(groupId));
1664                         }
1665                     }
1666                 }
1667                 if (syncMessage.getContacts().isPresent()) {
1668                     File tmpFile = null;
1669                     try {
1670                         tmpFile = IOUtils.createTempFile();
1671                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1672                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream().asPointer(), tmpFile)) {
1673                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1674                             if (contactsMessage.isComplete()) {
1675                                 account.getContactStore().clear();
1676                             }
1677                             DeviceContact c;
1678                             while ((c = s.read()) != null) {
1679                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
1680                                     account.setProfileKey(c.getProfileKey().get());
1681                                 }
1682                                 final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
1683                                 ContactInfo contact = account.getContactStore().getContact(address);
1684                                 if (contact == null) {
1685                                     contact = new ContactInfo(address);
1686                                 }
1687                                 if (c.getName().isPresent()) {
1688                                     contact.name = c.getName().get();
1689                                 }
1690                                 if (c.getColor().isPresent()) {
1691                                     contact.color = c.getColor().get();
1692                                 }
1693                                 if (c.getProfileKey().isPresent()) {
1694                                     account.getProfileStore().storeProfileKey(address, c.getProfileKey().get());
1695                                 }
1696                                 if (c.getVerified().isPresent()) {
1697                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
1698                                     account.getSignalProtocolStore().setIdentityTrustLevel(verifiedMessage.getDestination(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1699                                 }
1700                                 if (c.getExpirationTimer().isPresent()) {
1701                                     contact.messageExpirationTime = c.getExpirationTimer().get();
1702                                 }
1703                                 contact.blocked = c.isBlocked();
1704                                 contact.inboxPosition = c.getInboxPosition().orNull();
1705                                 contact.archived = c.isArchived();
1706                                 account.getContactStore().updateContact(contact);
1707
1708                                 if (c.getAvatar().isPresent()) {
1709                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
1710                                 }
1711                             }
1712                         }
1713                     } catch (Exception e) {
1714                         e.printStackTrace();
1715                     } finally {
1716                         if (tmpFile != null) {
1717                             try {
1718                                 Files.delete(tmpFile.toPath());
1719                             } catch (IOException e) {
1720                                 System.err.println("Failed to delete received contacts temp file “" + tmpFile + "”: " + e.getMessage());
1721                             }
1722                         }
1723                     }
1724                 }
1725                 if (syncMessage.getVerified().isPresent()) {
1726                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
1727                     account.getSignalProtocolStore().setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1728                 }
1729                 if (syncMessage.getConfiguration().isPresent()) {
1730                     // TODO
1731                 }
1732             }
1733         }
1734         return actions;
1735     }
1736
1737     private File getContactAvatarFile(String number) {
1738         return new File(pathConfig.getAvatarsPath(), "contact-" + number);
1739     }
1740
1741     private File retrieveContactAvatarAttachment(SignalServiceAttachment attachment, String number) throws IOException, InvalidMessageException, MissingConfigurationException {
1742         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1743         if (attachment.isPointer()) {
1744             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1745             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
1746         } else {
1747             SignalServiceAttachmentStream stream = attachment.asStream();
1748             return Utils.retrieveAttachment(stream, getContactAvatarFile(number));
1749         }
1750     }
1751
1752     private File getGroupAvatarFile(byte[] groupId) {
1753         return new File(pathConfig.getAvatarsPath(), "group-" + Base64.encodeBytes(groupId).replace("/", "_"));
1754     }
1755
1756     private File retrieveGroupAvatarAttachment(SignalServiceAttachment attachment, byte[] groupId) throws IOException, InvalidMessageException, MissingConfigurationException {
1757         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1758         if (attachment.isPointer()) {
1759             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1760             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
1761         } else {
1762             SignalServiceAttachmentStream stream = attachment.asStream();
1763             return Utils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
1764         }
1765     }
1766
1767     private File getProfileAvatarFile(SignalServiceAddress address) {
1768         return new File(pathConfig.getAvatarsPath(), "profile-" + address.getLegacyIdentifier());
1769     }
1770
1771     private File retrieveProfileAvatar(SignalServiceAddress address, String avatarPath, ProfileKey profileKey) throws IOException {
1772         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1773         SignalServiceMessageReceiver receiver = getMessageReceiver();
1774         File outputFile = getProfileAvatarFile(address);
1775
1776         File tmpFile = IOUtils.createTempFile();
1777         try (InputStream input = receiver.retrieveProfileAvatar(avatarPath, tmpFile, profileKey, ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
1778             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
1779             IOUtils.copyStreamToFile(input, outputFile, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
1780         } finally {
1781             try {
1782                 Files.delete(tmpFile.toPath());
1783             } catch (IOException e) {
1784                 System.err.println("Failed to delete received avatar temp file “" + tmpFile + "”: " + e.getMessage());
1785             }
1786         }
1787         return outputFile;
1788     }
1789
1790     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
1791         return new File(pathConfig.getAttachmentsPath(), attachmentId.toString());
1792     }
1793
1794     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException, MissingConfigurationException {
1795         IOUtils.createPrivateDirectories(pathConfig.getAttachmentsPath());
1796         return retrieveAttachment(pointer, getAttachmentFile(pointer.getRemoteId()), true);
1797     }
1798
1799     private File retrieveAttachment(SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview) throws IOException, InvalidMessageException, MissingConfigurationException {
1800         if (storePreview && pointer.getPreview().isPresent()) {
1801             File previewFile = new File(outputFile + ".preview");
1802             try (OutputStream output = new FileOutputStream(previewFile)) {
1803                 byte[] preview = pointer.getPreview().get();
1804                 output.write(preview, 0, preview.length);
1805             } catch (FileNotFoundException e) {
1806                 e.printStackTrace();
1807                 return null;
1808             }
1809         }
1810
1811         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1812
1813         File tmpFile = IOUtils.createTempFile();
1814         try (InputStream input = messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE)) {
1815             IOUtils.copyStreamToFile(input, outputFile);
1816         } finally {
1817             try {
1818                 Files.delete(tmpFile.toPath());
1819             } catch (IOException e) {
1820                 System.err.println("Failed to delete received attachment temp file “" + tmpFile + "”: " + e.getMessage());
1821             }
1822         }
1823         return outputFile;
1824     }
1825
1826     private InputStream retrieveAttachmentAsStream(SignalServiceAttachmentPointer pointer, File tmpFile) throws IOException, InvalidMessageException, MissingConfigurationException {
1827         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1828         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
1829     }
1830
1831     void sendGroups() throws IOException, UntrustedIdentityException {
1832         File groupsFile = IOUtils.createTempFile();
1833
1834         try {
1835             try (OutputStream fos = new FileOutputStream(groupsFile)) {
1836                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
1837                 for (GroupInfo record : account.getGroupStore().getGroups()) {
1838                     out.write(new DeviceGroup(record.groupId, Optional.fromNullable(record.name),
1839                             new ArrayList<>(record.getMembers()), createGroupAvatarAttachment(record.groupId),
1840                             record.isMember(account.getSelfAddress()), Optional.of(record.messageExpirationTime),
1841                             Optional.fromNullable(record.color), record.blocked, Optional.fromNullable(record.inboxPosition), record.archived));
1842                 }
1843             }
1844
1845             if (groupsFile.exists() && groupsFile.length() > 0) {
1846                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
1847                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1848                             .withStream(groupsFileStream)
1849                             .withContentType("application/octet-stream")
1850                             .withLength(groupsFile.length())
1851                             .build();
1852
1853                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
1854                 }
1855             }
1856         } finally {
1857             try {
1858                 Files.delete(groupsFile.toPath());
1859             } catch (IOException e) {
1860                 System.err.println("Failed to delete groups temp file “" + groupsFile + "”: " + e.getMessage());
1861             }
1862         }
1863     }
1864
1865     public void sendContacts() throws IOException, UntrustedIdentityException {
1866         File contactsFile = IOUtils.createTempFile();
1867
1868         try {
1869             try (OutputStream fos = new FileOutputStream(contactsFile)) {
1870                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
1871                 for (ContactInfo record : account.getContactStore().getContacts()) {
1872                     VerifiedMessage verifiedMessage = null;
1873                     JsonIdentityKeyStore.Identity currentIdentity = account.getSignalProtocolStore().getIdentity(record.getAddress());
1874                     if (currentIdentity != null) {
1875                         verifiedMessage = new VerifiedMessage(record.getAddress(), currentIdentity.getIdentityKey(), currentIdentity.getTrustLevel().toVerifiedState(), currentIdentity.getDateAdded().getTime());
1876                     }
1877
1878                     ProfileKey profileKey = account.getProfileStore().getProfileKey(record.getAddress());
1879                     out.write(new DeviceContact(record.getAddress(), Optional.fromNullable(record.name),
1880                             createContactAvatarAttachment(record.number), Optional.fromNullable(record.color),
1881                             Optional.fromNullable(verifiedMessage), Optional.fromNullable(profileKey), record.blocked,
1882                             Optional.of(record.messageExpirationTime),
1883                             Optional.fromNullable(record.inboxPosition), record.archived));
1884                 }
1885
1886                 if (account.getProfileKey() != null) {
1887                     // Send our own profile key as well
1888                     out.write(new DeviceContact(account.getSelfAddress(),
1889                             Optional.absent(), Optional.absent(),
1890                             Optional.absent(), Optional.absent(),
1891                             Optional.of(account.getProfileKey()),
1892                             false, Optional.absent(), Optional.absent(), false));
1893                 }
1894             }
1895
1896             if (contactsFile.exists() && contactsFile.length() > 0) {
1897                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
1898                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1899                             .withStream(contactsFileStream)
1900                             .withContentType("application/octet-stream")
1901                             .withLength(contactsFile.length())
1902                             .build();
1903
1904                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
1905                 }
1906             }
1907         } finally {
1908             try {
1909                 Files.delete(contactsFile.toPath());
1910             } catch (IOException e) {
1911                 System.err.println("Failed to delete contacts temp file “" + contactsFile + "”: " + e.getMessage());
1912             }
1913         }
1914     }
1915
1916     void sendBlockedList() throws IOException, UntrustedIdentityException {
1917         List<SignalServiceAddress> addresses = new ArrayList<>();
1918         for (ContactInfo record : account.getContactStore().getContacts()) {
1919             if (record.blocked) {
1920                 addresses.add(record.getAddress());
1921             }
1922         }
1923         List<byte[]> groupIds = new ArrayList<>();
1924         for (GroupInfo record : account.getGroupStore().getGroups()) {
1925             if (record.blocked) {
1926                 groupIds.add(record.groupId);
1927             }
1928         }
1929         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
1930     }
1931
1932     private void sendVerifiedMessage(SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel) throws IOException, UntrustedIdentityException {
1933         VerifiedMessage verifiedMessage = new VerifiedMessage(destination, identityKey, trustLevel.toVerifiedState(), System.currentTimeMillis());
1934         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
1935     }
1936
1937     public List<ContactInfo> getContacts() {
1938         return account.getContactStore().getContacts();
1939     }
1940
1941     public ContactInfo getContact(String number) {
1942         return account.getContactStore().getContact(Util.getSignalServiceAddressFromIdentifier(number));
1943     }
1944
1945     public GroupInfo getGroup(byte[] groupId) {
1946         return account.getGroupStore().getGroup(groupId);
1947     }
1948
1949     public List<JsonIdentityKeyStore.Identity> getIdentities() {
1950         return account.getSignalProtocolStore().getIdentities();
1951     }
1952
1953     public List<JsonIdentityKeyStore.Identity> getIdentities(String number) throws InvalidNumberException {
1954         return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));
1955     }
1956
1957     /**
1958      * Trust this the identity with this fingerprint
1959      *
1960      * @param name        username of the identity
1961      * @param fingerprint Fingerprint
1962      */
1963     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
1964         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
1965         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
1966         if (ids == null) {
1967             return false;
1968         }
1969         for (JsonIdentityKeyStore.Identity id : ids) {
1970             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
1971                 continue;
1972             }
1973
1974             account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1975             try {
1976                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1977             } catch (IOException | UntrustedIdentityException e) {
1978                 e.printStackTrace();
1979             }
1980             account.save();
1981             return true;
1982         }
1983         return false;
1984     }
1985
1986     /**
1987      * Trust this the identity with this safety number
1988      *
1989      * @param name         username of the identity
1990      * @param safetyNumber Safety number
1991      */
1992     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
1993         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
1994         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
1995         if (ids == null) {
1996             return false;
1997         }
1998         for (JsonIdentityKeyStore.Identity id : ids) {
1999             if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {
2000                 continue;
2001             }
2002
2003             account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2004             try {
2005                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2006             } catch (IOException | UntrustedIdentityException e) {
2007                 e.printStackTrace();
2008             }
2009             account.save();
2010             return true;
2011         }
2012         return false;
2013     }
2014
2015     /**
2016      * Trust all keys of this identity without verification
2017      *
2018      * @param name username of the identity
2019      */
2020     public boolean trustIdentityAllKeys(String name) {
2021         SignalServiceAddress address = resolveSignalServiceAddress(name);
2022         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2023         if (ids == null) {
2024             return false;
2025         }
2026         for (JsonIdentityKeyStore.Identity id : ids) {
2027             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2028                 account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2029                 try {
2030                     sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2031                 } catch (IOException | UntrustedIdentityException e) {
2032                     e.printStackTrace();
2033                 }
2034             }
2035         }
2036         account.save();
2037         return true;
2038     }
2039
2040     public String computeSafetyNumber(SignalServiceAddress theirAddress, IdentityKey theirIdentityKey) {
2041         return Utils.computeSafetyNumber(account.getSelfAddress(), getIdentityKeyPair().getPublicKey(), theirAddress, theirIdentityKey);
2042     }
2043
2044     void saveAccount() {
2045         account.save();
2046     }
2047
2048     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2049         String canonicalizedNumber = UuidUtil.isUuid(identifier) ? identifier : Util.canonicalizeNumber(identifier, account.getUsername());
2050         return resolveSignalServiceAddress(canonicalizedNumber);
2051     }
2052
2053     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2054         SignalServiceAddress address = Util.getSignalServiceAddressFromIdentifier(identifier);
2055
2056         return resolveSignalServiceAddress(address);
2057     }
2058
2059     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2060         if (address.matches(account.getSelfAddress())) {
2061             return account.getSelfAddress();
2062         }
2063
2064         return account.getRecipientStore().resolveServiceAddress(address);
2065     }
2066
2067     @Override
2068     public void close() throws IOException {
2069         if (messagePipe != null) {
2070             messagePipe.shutdown();
2071             messagePipe = null;
2072         }
2073
2074         if (unidentifiedMessagePipe != null) {
2075             unidentifiedMessagePipe.shutdown();
2076             unidentifiedMessagePipe = null;
2077         }
2078
2079         account.close();
2080     }
2081
2082     public interface ReceiveMessageHandler {
2083
2084         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2085     }
2086 }