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.charset.StandardCharsets;
 128 import java.nio.file.Files;
 129 import java.nio.file.Paths;
 130 import java.nio.file.StandardCopyOption;
 131 import java.util.ArrayList;
 132 import java.util.Arrays;
 133 import java.util.Collection;
 134 import java.util.Collections;
 135 import java.util.Date;
 136 import java.util.HashSet;
 137 import java.util.LinkedList;
 138 import java.util.List;
 139 import java.util.Locale;
 140 import java.util.Objects;
 141 import java.util.Set;
 142 import java.util.UUID;
 143 import java.util.concurrent.ExecutionException;
 144 import java.util.concurrent.ExecutorService;
 145 import java.util.concurrent.TimeUnit;
 146 import java.util.concurrent.TimeoutException;
 147 import java.util.stream.Collectors;
 148 import java.util.zip.ZipEntry;
 149 import java.util.zip.ZipFile;
 150
 151 import static org.asamk.signal.manager.ServiceConfig.capabilities;
 152
 153 public class Manager implements Closeable {
 154
 155     private final SleepTimer timer = new UptimeSleepTimer();
 156     private final SignalServiceConfiguration serviceConfiguration;
 157     private final String userAgent;
 158
 159     private final SignalAccount account;
 160     private final PathConfig pathConfig;
 161     private SignalServiceAccountManager accountManager;
 162     private SignalServiceMessagePipe messagePipe = null;
 163     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 164     private boolean discoverableByPhoneNumber = true;
 165
 166     public Manager(SignalAccount account, PathConfig pathConfig, SignalServiceConfiguration serviceConfiguration, String userAgent) {
 167         this.account = account;
 168         this.pathConfig = pathConfig;
 169         this.serviceConfiguration = serviceConfiguration;
 170         this.userAgent = userAgent;
 171         this.accountManager = createSignalServiceAccountManager();
 172
 173         this.account.setResolver(this::resolveSignalServiceAddress);
 174     }
 175
 176     public String getUsername() {
 177         return account.getUsername();
 178     }
 179
 180     public SignalServiceAddress getSelfAddress() {
 181         return account.getSelfAddress();
 182     }
 183
 184     private SignalServiceAccountManager createSignalServiceAccountManager() {
 185         GroupsV2Operations groupsV2Operations;
 186         try {
 187             groupsV2Operations = new GroupsV2Operations(ClientZkOperations.create(serviceConfiguration));
 188         } catch (Throwable ignored) {
 189             groupsV2Operations = null;
 190         }
 191         return new SignalServiceAccountManager(serviceConfiguration,
 192                 new DynamicCredentialsProvider(account.getUuid(), account.getUsername(), account.getPassword(), null, account.getDeviceId()),
 193                 userAgent,
 194                 groupsV2Operations,
 195                 timer);
 196     }
 197
 198     private IdentityKeyPair getIdentityKeyPair() {
 199         return account.getSignalProtocolStore().getIdentityKeyPair();
 200     }
 201
 202     public int getDeviceId() {
 203         return account.getDeviceId();
 204     }
 205
 206     private String getMessageCachePath() {
 207         return pathConfig.getDataPath() + "/" + account.getUsername() + ".d/msg-cache";
 208     }
 209
 210     private String getMessageCachePath(String sender) {
 211         if (sender == null || sender.isEmpty()) {
 212             return getMessageCachePath();
 213         }
 214
 215         return getMessageCachePath() + "/" + sender.replace("/", "_");
 216     }
 217
 218     private File getMessageCacheFile(String sender, long now, long timestamp) throws IOException {
 219         String cachePath = getMessageCachePath(sender);
 220         IOUtils.createPrivateDirectories(cachePath);
 221         return new File(cachePath + "/" + now + "_" + timestamp);
 222     }
 223
 224     public static Manager init(String username, String settingsPath, SignalServiceConfiguration serviceConfiguration, String userAgent) throws IOException {
 225         PathConfig pathConfig = PathConfig.createDefault(settingsPath);
 226
 227         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 228             IdentityKeyPair identityKey = KeyHelper.generateIdentityKeyPair();
 229             int registrationId = KeyHelper.generateRegistrationId(false);
 230
 231             ProfileKey profileKey = KeyUtils.createProfileKey();
 232             SignalAccount account = SignalAccount.create(pathConfig.getDataPath(), username, identityKey, registrationId, profileKey);
 233             account.save();
 234
 235             return new Manager(account, pathConfig, serviceConfiguration, userAgent);
 236         }
 237
 238         SignalAccount account = SignalAccount.load(pathConfig.getDataPath(), username);
 239
 240         Manager m = new Manager(account, pathConfig, serviceConfiguration, userAgent);
 241
 242         m.migrateLegacyConfigs();
 243
 244         return m;
 245     }
 246
 247     private void migrateLegacyConfigs() {
 248         // Copy group avatars that were previously stored in the attachments folder
 249         // to the new avatar folder
 250         if (JsonGroupStore.groupsWithLegacyAvatarId.size() > 0) {
 251             for (GroupInfo g : JsonGroupStore.groupsWithLegacyAvatarId) {
 252                 File avatarFile = getGroupAvatarFile(g.groupId);
 253                 File attachmentFile = getAttachmentFile(new SignalServiceAttachmentRemoteId(g.getAvatarId()));
 254                 if (!avatarFile.exists() && attachmentFile.exists()) {
 255                     try {
 256                         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
 257                         Files.copy(attachmentFile.toPath(), avatarFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 258                     } catch (Exception e) {
 259                         // Ignore
 260                     }
 261                 }
 262             }
 263             JsonGroupStore.groupsWithLegacyAvatarId.clear();
 264             account.save();
 265         }
 266         if (account.getProfileKey() == null) {
 267             // Old config file, creating new profile key
 268             account.setProfileKey(KeyUtils.createProfileKey());
 269             account.save();
 270         }
 271         // Store profile keys only in profile store
 272         for (ContactInfo contact : account.getContactStore().getContacts()) {
 273             String profileKeyString = contact.profileKey;
 274             if (profileKeyString == null) {
 275                 continue;
 276             }
 277             final ProfileKey profileKey;
 278             try {
 279                 profileKey = new ProfileKey(Base64.decode(profileKeyString));
 280             } catch (InvalidInputException | IOException e) {
 281                 continue;
 282             }
 283             contact.profileKey = null;
 284             account.getProfileStore().storeProfileKey(contact.getAddress(), profileKey);
 285         }
 286     }
 287
 288     public void checkAccountState() throws IOException {
 289         if (account.isRegistered()) {
 290             if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 291                 refreshPreKeys();
 292                 account.save();
 293             }
 294             if (account.getUuid() == null) {
 295                 account.setUuid(accountManager.getOwnUuid());
 296                 account.save();
 297             }
 298         }
 299     }
 300
 301     public boolean isRegistered() {
 302         return account.isRegistered();
 303     }
 304
 305     public void register(boolean voiceVerification) throws IOException {
 306         account.setPassword(KeyUtils.createPassword());
 307
 308         // Resetting UUID, because registering doesn't work otherwise
 309         account.setUuid(null);
 310         accountManager = createSignalServiceAccountManager();
 311
 312         if (voiceVerification) {
 313             accountManager.requestVoiceVerificationCode(Locale.getDefault(), Optional.absent(), Optional.absent());
 314         } else {
 315             accountManager.requestSmsVerificationCode(false, Optional.absent(), Optional.absent());
 316         }
 317
 318         account.setRegistered(false);
 319         account.save();
 320     }
 321
 322     public void updateAccountAttributes() throws IOException {
 323         accountManager.setAccountAttributes(account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, account.getRegistrationLockPin(), account.getRegistrationLock(), getSelfUnidentifiedAccessKey(), false, capabilities, discoverableByPhoneNumber);
 324     }
 325
 326     public void setProfile(String name, File avatar) throws IOException {
 327         try (final StreamDetails streamDetails = avatar == null ? null : Utils.createStreamDetailsFromFile(avatar)) {
 328             accountManager.setVersionedProfile(account.getUuid(), account.getProfileKey(), name, streamDetails);
 329         }
 330     }
 331
 332     public void unregister() throws IOException {
 333         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 334         // If this is the master device, other users can't send messages to this number anymore.
 335         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 336         accountManager.setGcmId(Optional.absent());
 337
 338         account.setRegistered(false);
 339         account.save();
 340     }
 341
 342     public List<DeviceInfo> getLinkedDevices() throws IOException {
 343         List<DeviceInfo> devices = accountManager.getDevices();
 344         account.setMultiDevice(devices.size() > 1);
 345         account.save();
 346         return devices;
 347     }
 348
 349     public void removeLinkedDevices(int deviceId) throws IOException {
 350         accountManager.removeDevice(deviceId);
 351         List<DeviceInfo> devices = accountManager.getDevices();
 352         account.setMultiDevice(devices.size() > 1);
 353         account.save();
 354     }
 355
 356     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 357         Utils.DeviceLinkInfo info = Utils.parseDeviceLinkUri(linkUri);
 358
 359         addDevice(info.deviceIdentifier, info.deviceKey);
 360     }
 361
 362     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 363         IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 364         String verificationCode = accountManager.getNewDeviceVerificationCode();
 365
 366         accountManager.addDevice(deviceIdentifier, deviceKey, identityKeyPair, Optional.of(account.getProfileKey().serialize()), verificationCode);
 367         account.setMultiDevice(true);
 368         account.save();
 369     }
 370
 371     private List<PreKeyRecord> generatePreKeys() {
 372         List<PreKeyRecord> records = new ArrayList<>(ServiceConfig.PREKEY_BATCH_SIZE);
 373
 374         final int offset = account.getPreKeyIdOffset();
 375         for (int i = 0; i < ServiceConfig.PREKEY_BATCH_SIZE; i++) {
 376             int preKeyId = (offset + i) % Medium.MAX_VALUE;
 377             ECKeyPair keyPair = Curve.generateKeyPair();
 378             PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);
 379
 380             records.add(record);
 381         }
 382
 383         account.addPreKeys(records);
 384         account.save();
 385
 386         return records;
 387     }
 388
 389     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 390         try {
 391             ECKeyPair keyPair = Curve.generateKeyPair();
 392             byte[] signature = Curve.calculateSignature(identityKeyPair.getPrivateKey(), keyPair.getPublicKey().serialize());
 393             SignedPreKeyRecord record = new SignedPreKeyRecord(account.getNextSignedPreKeyId(), System.currentTimeMillis(), keyPair, signature);
 394
 395             account.addSignedPreKey(record);
 396             account.save();
 397
 398             return record;
 399         } catch (InvalidKeyException e) {
 400             throw new AssertionError(e);
 401         }
 402     }
 403
 404     public void verifyAccount(String verificationCode, String pin) throws IOException {
 405         verificationCode = verificationCode.replace("-", "");
 406         account.setSignalingKey(KeyUtils.createSignalingKey());
 407         // TODO make unrestricted unidentified access configurable
 408         VerifyAccountResponse response = accountManager.verifyAccountWithCode(verificationCode, account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, pin, null, getSelfUnidentifiedAccessKey(), false, capabilities, discoverableByPhoneNumber);
 409
 410         UUID uuid = UuidUtil.parseOrNull(response.getUuid());
 411         // TODO response.isStorageCapable()
 412         //accountManager.setGcmId(Optional.of(GoogleCloudMessaging.getInstance(this).register(REGISTRATION_ID)));
 413         account.setRegistered(true);
 414         account.setUuid(uuid);
 415         account.setRegistrationLockPin(pin);
 416         account.getSignalProtocolStore().saveIdentity(account.getSelfAddress(), getIdentityKeyPair().getPublicKey(), TrustLevel.TRUSTED_VERIFIED);
 417
 418         refreshPreKeys();
 419         account.save();
 420     }
 421
 422     public void setRegistrationLockPin(Optional<String> pin) throws IOException {
 423         if (pin.isPresent()) {
 424             account.setRegistrationLockPin(pin.get());
 425             throw new RuntimeException("Not implemented anymore, will be replaced with KBS");
 426         } else {
 427             account.setRegistrationLockPin(null);
 428             accountManager.removeRegistrationLockV1();
 429         }
 430         account.save();
 431     }
 432
 433     void refreshPreKeys() throws IOException {
 434         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 435         final IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 436         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 437
 438         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 439     }
 440
 441     private SignalServiceMessageReceiver getMessageReceiver() {
 442         // TODO implement ZkGroup support
 443         final ClientZkProfileOperations clientZkProfileOperations = null;
 444         return new SignalServiceMessageReceiver(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(), account.getDeviceId(), account.getSignalingKey(), userAgent, null, timer, clientZkProfileOperations);
 445     }
 446
 447     private SignalServiceMessageSender getMessageSender() {
 448         // TODO implement ZkGroup support
 449         final ClientZkProfileOperations clientZkProfileOperations = null;
 450         final ExecutorService executor = null;
 451         return new SignalServiceMessageSender(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(),
 452                 account.getDeviceId(), account.getSignalProtocolStore(), userAgent, account.isMultiDevice(), Optional.fromNullable(messagePipe), Optional.fromNullable(unidentifiedMessagePipe), Optional.absent(), clientZkProfileOperations, executor, ServiceConfig.MAX_ENVELOPE_SIZE);
 453     }
 454
 455     private SignalServiceProfile getEncryptedRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess) throws IOException {
 456         SignalServiceMessagePipe pipe = unidentifiedMessagePipe != null && unidentifiedAccess.isPresent() ? unidentifiedMessagePipe
 457                 : messagePipe;
 458
 459         if (pipe != null) {
 460             try {
 461                 return pipe.getProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).get(10, TimeUnit.SECONDS).getProfile();
 462             } catch (IOException | InterruptedException | ExecutionException | TimeoutException ignored) {
 463             }
 464         }
 465
 466         SignalServiceMessageReceiver receiver = getMessageReceiver();
 467         try {
 468             return receiver.retrieveProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).get(10, TimeUnit.SECONDS).getProfile();
 469         } catch (InterruptedException | ExecutionException | TimeoutException e) {
 470             throw new IOException("Failed to retrieve profile", e);
 471         }
 472     }
 473
 474     private SignalProfile getRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess, ProfileKey profileKey) throws IOException {
 475         SignalProfileEntry profileEntry = account.getProfileStore().getProfile(address);
 476         long now = new Date().getTime();
 477         // Profiles are cache for 24h before retrieving them again
 478         if (profileEntry == null || profileEntry.getProfile() == null || now - profileEntry.getLastUpdateTimestamp() > 24 * 60 * 60 * 1000) {
 479             SignalProfile profile = retrieveRecipientProfile(address, unidentifiedAccess, profileKey);
 480             account.getProfileStore().updateProfile(address, profileKey, now, profile);
 481             return profile;
 482         }
 483         return profileEntry.getProfile();
 484     }
 485
 486     private SignalProfile retrieveRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess, ProfileKey profileKey) throws IOException {
 487         final SignalServiceProfile encryptedProfile = getEncryptedRecipientProfile(address, unidentifiedAccess);
 488
 489         File avatarFile = null;
 490         try {
 491             avatarFile = encryptedProfile.getAvatar() == null ? null : retrieveProfileAvatar(address, encryptedProfile.getAvatar(), profileKey);
 492         } catch (Throwable e) {
 493             System.err.println("Failed to retrieve profile avatar, ignoring: " + e.getMessage());
 494         }
 495
 496         ProfileCipher profileCipher = new ProfileCipher(profileKey);
 497         try {
 498             return new SignalProfile(
 499                     encryptedProfile.getIdentityKey(),
 500                     encryptedProfile.getName() == null ? null : new String(profileCipher.decryptName(Base64.decode(encryptedProfile.getName()))),
 501                     avatarFile,
 502                     encryptedProfile.getUnidentifiedAccess() == null || !profileCipher.verifyUnidentifiedAccess(Base64.decode(encryptedProfile.getUnidentifiedAccess())) ? null : encryptedProfile.getUnidentifiedAccess(),
 503                     encryptedProfile.isUnrestrictedUnidentifiedAccess(),
 504                     encryptedProfile.getCapabilities());
 505         } catch (InvalidCiphertextException e) {
 506             return null;
 507         }
 508     }
 509
 510     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(byte[] groupId) throws IOException {
 511         File file = getGroupAvatarFile(groupId);
 512         if (!file.exists()) {
 513             return Optional.absent();
 514         }
 515
 516         return Optional.of(Utils.createAttachment(file));
 517     }
 518
 519     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(String number) throws IOException {
 520         File file = getContactAvatarFile(number);
 521         if (!file.exists()) {
 522             return Optional.absent();
 523         }
 524
 525         return Optional.of(Utils.createAttachment(file));
 526     }
 527
 528     private GroupInfo getGroupForSending(byte[] groupId) throws GroupNotFoundException, NotAGroupMemberException {
 529         GroupInfo g = account.getGroupStore().getGroup(groupId);
 530         if (g == null) {
 531             throw new GroupNotFoundException(groupId);
 532         }
 533         if (!g.isMember(account.getSelfAddress())) {
 534             throw new NotAGroupMemberException(groupId, g.name);
 535         }
 536         return g;
 537     }
 538
 539     public List<GroupInfo> getGroups() {
 540         return account.getGroupStore().getGroups();
 541     }
 542
 543     public long sendGroupMessage(String messageText, List<String> attachments,
 544                                  byte[] groupId)
 545             throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 546         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 547         if (attachments != null) {
 548             messageBuilder.withAttachments(Utils.getSignalServiceAttachments(attachments));
 549         }
 550         if (groupId != null) {
 551             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 552                     .withId(groupId)
 553                     .build();
 554             messageBuilder.asGroupMessage(group);
 555         }
 556
 557         final GroupInfo g = getGroupForSending(groupId);
 558
 559         messageBuilder.withExpiration(g.messageExpirationTime);
 560
 561         return sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 562     }
 563
 564     public void sendGroupMessageReaction(String emoji, boolean remove, String targetAuthor,
 565                                          long targetSentTimestamp, byte[] groupId)
 566             throws IOException, EncapsulatedExceptions, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 567         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, canonicalizeAndResolveSignalServiceAddress(targetAuthor), targetSentTimestamp);
 568         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 569                 .withReaction(reaction);
 570         if (groupId != null) {
 571             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 572                     .withId(groupId)
 573                     .build();
 574             messageBuilder.asGroupMessage(group);
 575         }
 576         final GroupInfo g = getGroupForSending(groupId);
 577         sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 578     }
 579
 580     public void sendQuitGroupMessage(byte[] groupId) throws GroupNotFoundException, IOException, EncapsulatedExceptions, NotAGroupMemberException {
 581         SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 582                 .withId(groupId)
 583                 .build();
 584
 585         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 586                 .asGroupMessage(group);
 587
 588         final GroupInfo g = getGroupForSending(groupId);
 589         g.removeMember(account.getSelfAddress());
 590         account.getGroupStore().updateGroup(g);
 591
 592         sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 593     }
 594
 595     private byte[] sendUpdateGroupMessage(byte[] groupId, String name, Collection<SignalServiceAddress> members, String avatarFile) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 596         GroupInfo g;
 597         if (groupId == null) {
 598             // Create new group
 599             g = new GroupInfo(KeyUtils.createGroupId());
 600             g.addMembers(Collections.singleton(account.getSelfAddress()));
 601         } else {
 602             g = getGroupForSending(groupId);
 603         }
 604
 605         if (name != null) {
 606             g.name = name;
 607         }
 608
 609         if (members != null) {
 610             final Set<String> newE164Members = new HashSet<>();
 611             for (SignalServiceAddress member : members) {
 612                 if (g.isMember(member) || !member.getNumber().isPresent()) {
 613                     continue;
 614                 }
 615                 newE164Members.add(member.getNumber().get());
 616             }
 617
 618             final List<ContactTokenDetails> contacts = accountManager.getContacts(newE164Members);
 619             if (contacts.size() != newE164Members.size()) {
 620                 // Some of the new members are not registered on Signal
 621                 for (ContactTokenDetails contact : contacts) {
 622                     newE164Members.remove(contact.getNumber());
 623                 }
 624                 throw new IOException("Failed to add members " + Util.join(", ", newE164Members) + " to group: Not registered on Signal");
 625             }
 626
 627             g.addMembers(members);
 628         }
 629
 630         if (avatarFile != null) {
 631             IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
 632             File aFile = getGroupAvatarFile(g.groupId);
 633             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 634         }
 635
 636         account.getGroupStore().updateGroup(g);
 637
 638         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 639
 640         sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 641         return g.groupId;
 642     }
 643
 644     void sendUpdateGroupMessage(byte[] groupId, SignalServiceAddress recipient) throws IOException, EncapsulatedExceptions, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 645         if (groupId == null) {
 646             return;
 647         }
 648         GroupInfo g = getGroupForSending(groupId);
 649
 650         if (!g.isMember(recipient)) {
 651             return;
 652         }
 653
 654         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 655
 656         // Send group message only to the recipient who requested it
 657         sendMessageLegacy(messageBuilder, Collections.singleton(recipient));
 658     }
 659
 660     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfo g) throws AttachmentInvalidException {
 661         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 662                 .withId(g.groupId)
 663                 .withName(g.name)
 664                 .withMembers(new ArrayList<>(g.getMembers()));
 665
 666         File aFile = getGroupAvatarFile(g.groupId);
 667         if (aFile.exists()) {
 668             try {
 669                 group.withAvatar(Utils.createAttachment(aFile));
 670             } catch (IOException e) {
 671                 throw new AttachmentInvalidException(aFile.toString(), e);
 672             }
 673         }
 674
 675         return SignalServiceDataMessage.newBuilder()
 676                 .asGroupMessage(group.build())
 677                 .withExpiration(g.messageExpirationTime);
 678     }
 679
 680     void sendGroupInfoRequest(byte[] groupId, SignalServiceAddress recipient) throws IOException, EncapsulatedExceptions {
 681         if (groupId == null) {
 682             return;
 683         }
 684
 685         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 686                 .withId(groupId);
 687
 688         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 689                 .asGroupMessage(group.build());
 690
 691         // Send group info request message to the recipient who sent us a message with this groupId
 692         sendMessageLegacy(messageBuilder, Collections.singleton(recipient));
 693     }
 694
 695     void sendReceipt(SignalServiceAddress remoteAddress, long messageId) throws IOException, UntrustedIdentityException {
 696         SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
 697                 Collections.singletonList(messageId),
 698                 System.currentTimeMillis());
 699
 700         getMessageSender().sendReceipt(remoteAddress, getAccessFor(remoteAddress), receiptMessage);
 701     }
 702
 703     public long sendMessage(String messageText, List<String> attachments,
 704                             List<String> recipients)
 705             throws IOException, EncapsulatedExceptions, AttachmentInvalidException, InvalidNumberException {
 706         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 707         if (attachments != null) {
 708             List<SignalServiceAttachment> attachmentStreams = Utils.getSignalServiceAttachments(attachments);
 709
 710             // Upload attachments here, so we only upload once even for multiple recipients
 711             SignalServiceMessageSender messageSender = getMessageSender();
 712             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 713             for (SignalServiceAttachment attachment : attachmentStreams) {
 714                 if (attachment.isStream()) {
 715                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 716                 } else if (attachment.isPointer()) {
 717                     attachmentPointers.add(attachment.asPointer());
 718                 }
 719             }
 720
 721             messageBuilder.withAttachments(attachmentPointers);
 722         }
 723         return sendMessageLegacy(messageBuilder, getSignalServiceAddresses(recipients));
 724     }
 725
 726     public void sendMessageReaction(String emoji, boolean remove, String targetAuthor,
 727                                     long targetSentTimestamp, List<String> recipients)
 728             throws IOException, EncapsulatedExceptions, InvalidNumberException {
 729         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, canonicalizeAndResolveSignalServiceAddress(targetAuthor), targetSentTimestamp);
 730         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 731                 .withReaction(reaction);
 732         sendMessageLegacy(messageBuilder, getSignalServiceAddresses(recipients));
 733     }
 734
 735     public void sendEndSessionMessage(List<String> recipients) throws IOException, EncapsulatedExceptions, InvalidNumberException {
 736         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 737                 .asEndSessionMessage();
 738
 739         final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
 740         try {
 741             sendMessageLegacy(messageBuilder, signalServiceAddresses);
 742         } catch (Exception e) {
 743             for (SignalServiceAddress address : signalServiceAddresses) {
 744                 handleEndSession(address);
 745             }
 746             account.save();
 747             throw e;
 748         }
 749     }
 750
 751     public String getContactName(String number) throws InvalidNumberException {
 752         ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));
 753         if (contact == null) {
 754             return "";
 755         } else {
 756             return contact.name;
 757         }
 758     }
 759
 760     public void setContactName(String number, String name) throws InvalidNumberException {
 761         final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 762         ContactInfo contact = account.getContactStore().getContact(address);
 763         if (contact == null) {
 764             contact = new ContactInfo(address);
 765         }
 766         contact.name = name;
 767         account.getContactStore().updateContact(contact);
 768         account.save();
 769     }
 770
 771     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
 772         setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
 773     }
 774
 775     private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
 776         ContactInfo contact = account.getContactStore().getContact(address);
 777         if (contact == null) {
 778             contact = new ContactInfo(address);
 779         }
 780         contact.blocked = blocked;
 781         account.getContactStore().updateContact(contact);
 782         account.save();
 783     }
 784
 785     public void setGroupBlocked(final byte[] groupId, final boolean blocked) throws GroupNotFoundException {
 786         GroupInfo group = getGroup(groupId);
 787         if (group == null) {
 788             throw new GroupNotFoundException(groupId);
 789         }
 790
 791         group.blocked = blocked;
 792         account.getGroupStore().updateGroup(group);
 793         account.save();
 794     }
 795
 796     public byte[] updateGroup(byte[] groupId, String name, List<String> members, String avatar) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 797         if (groupId.length == 0) {
 798             groupId = null;
 799         }
 800         if (name.isEmpty()) {
 801             name = null;
 802         }
 803         if (members.isEmpty()) {
 804             members = null;
 805         }
 806         if (avatar.isEmpty()) {
 807             avatar = null;
 808         }
 809         return sendUpdateGroupMessage(groupId, name, members == null ? null : getSignalServiceAddresses(members), avatar);
 810     }
 811
 812     /**
 813      * Change the expiration timer for a contact
 814      */
 815     public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) throws IOException {
 816         ContactInfo contact = account.getContactStore().getContact(address);
 817         contact.messageExpirationTime = messageExpirationTimer;
 818         account.getContactStore().updateContact(contact);
 819         sendExpirationTimerUpdate(address);
 820         account.save();
 821     }
 822
 823     private void sendExpirationTimerUpdate(SignalServiceAddress address) throws IOException {
 824         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 825                 .asExpirationUpdate();
 826         sendMessage(messageBuilder, Collections.singleton(address));
 827     }
 828
 829     /**
 830      * Change the expiration timer for a contact
 831      */
 832     public void setExpirationTimer(String number, int messageExpirationTimer) throws IOException, InvalidNumberException {
 833         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 834         setExpirationTimer(address, messageExpirationTimer);
 835     }
 836
 837     /**
 838      * Change the expiration timer for a group
 839      */
 840     public void setExpirationTimer(byte[] groupId, int messageExpirationTimer) {
 841         GroupInfo g = account.getGroupStore().getGroup(groupId);
 842         g.messageExpirationTime = messageExpirationTimer;
 843         account.getGroupStore().updateGroup(g);
 844     }
 845
 846     /**
 847      * Upload the sticker pack from path.
 848      *
 849      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
 850      * @return if successful, returns the URL to install the sticker pack in the signal app
 851      */
 852     public String uploadStickerPack(String path) throws IOException, StickerPackInvalidException {
 853         SignalServiceStickerManifestUpload manifest = getSignalServiceStickerManifestUpload(path);
 854
 855         SignalServiceMessageSender messageSender = getMessageSender();
 856
 857         byte[] packKey = KeyUtils.createStickerUploadKey();
 858         String packId = messageSender.uploadStickerManifest(manifest, packKey);
 859
 860         try {
 861             return new URI("https", "signal.art", "/addstickers/", "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(Hex.toStringCondensed(packKey), StandardCharsets.UTF_8))
 862                     .toString();
 863         } catch (URISyntaxException e) {
 864             throw new AssertionError(e);
 865         }
 866     }
 867
 868     private SignalServiceStickerManifestUpload getSignalServiceStickerManifestUpload(final String path) throws IOException, StickerPackInvalidException {
 869         ZipFile zip = null;
 870         String rootPath = null;
 871
 872         final File file = new File(path);
 873         if (file.getName().endsWith(".zip")) {
 874             zip = new ZipFile(file);
 875         } else if (file.getName().equals("manifest.json")) {
 876             rootPath = file.getParent();
 877         } else {
 878             throw new StickerPackInvalidException("Could not find manifest.json");
 879         }
 880
 881         JsonStickerPack pack = parseStickerPack(rootPath, zip);
 882
 883         if (pack.stickers == null) {
 884             throw new StickerPackInvalidException("Must set a 'stickers' field.");
 885         }
 886
 887         if (pack.stickers.isEmpty()) {
 888             throw new StickerPackInvalidException("Must include stickers.");
 889         }
 890
 891         List<StickerInfo> stickers = new ArrayList<>(pack.stickers.size());
 892         for (JsonStickerPack.JsonSticker sticker : pack.stickers) {
 893             if (sticker.file == null) {
 894                 throw new StickerPackInvalidException("Must set a 'file' field on each sticker.");
 895             }
 896
 897             Pair<InputStream, Long> data;
 898             try {
 899                 data = getInputStreamAndLength(rootPath, zip, sticker.file);
 900             } catch (IOException ignored) {
 901                 throw new StickerPackInvalidException("Could not find find " + sticker.file);
 902             }
 903
 904             String contentType = Utils.getFileMimeType(new File(sticker.file), null);
 905             StickerInfo stickerInfo = new StickerInfo(data.first(), data.second(), Optional.fromNullable(sticker.emoji).or(""), contentType);
 906             stickers.add(stickerInfo);
 907         }
 908
 909         StickerInfo cover = null;
 910         if (pack.cover != null) {
 911             if (pack.cover.file == null) {
 912                 throw new StickerPackInvalidException("Must set a 'file' field on the cover.");
 913             }
 914
 915             Pair<InputStream, Long> data;
 916             try {
 917                 data = getInputStreamAndLength(rootPath, zip, pack.cover.file);
 918             } catch (IOException ignored) {
 919                 throw new StickerPackInvalidException("Could not find find " + pack.cover.file);
 920             }
 921
 922             String contentType = Utils.getFileMimeType(new File(pack.cover.file), null);
 923             cover = new StickerInfo(data.first(), data.second(), Optional.fromNullable(pack.cover.emoji).or(""), contentType);
 924         }
 925
 926         return new SignalServiceStickerManifestUpload(
 927                 pack.title,
 928                 pack.author,
 929                 cover,
 930                 stickers);
 931     }
 932
 933     private static JsonStickerPack parseStickerPack(String rootPath, ZipFile zip) throws IOException {
 934         InputStream inputStream;
 935         if (zip != null) {
 936             inputStream = zip.getInputStream(zip.getEntry("manifest.json"));
 937         } else {
 938             inputStream = new FileInputStream((new File(rootPath, "manifest.json")));
 939         }
 940         return new ObjectMapper().readValue(inputStream, JsonStickerPack.class);
 941     }
 942
 943     private static Pair<InputStream, Long> getInputStreamAndLength(final String rootPath, final ZipFile zip, final String subfile) throws IOException {
 944         if (zip != null) {
 945             final ZipEntry entry = zip.getEntry(subfile);
 946             return new Pair<>(zip.getInputStream(entry), entry.getSize());
 947         } else {
 948             final File file = new File(rootPath, subfile);
 949             return new Pair<>(new FileInputStream(file), file.length());
 950         }
 951     }
 952
 953     void requestSyncGroups() throws IOException {
 954         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS).build();
 955         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 956         try {
 957             sendSyncMessage(message);
 958         } catch (UntrustedIdentityException e) {
 959             e.printStackTrace();
 960         }
 961     }
 962
 963     void requestSyncContacts() throws IOException {
 964         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS).build();
 965         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 966         try {
 967             sendSyncMessage(message);
 968         } catch (UntrustedIdentityException e) {
 969             e.printStackTrace();
 970         }
 971     }
 972
 973     void requestSyncBlocked() throws IOException {
 974         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED).build();
 975         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 976         try {
 977             sendSyncMessage(message);
 978         } catch (UntrustedIdentityException e) {
 979             e.printStackTrace();
 980         }
 981     }
 982
 983     void requestSyncConfiguration() throws IOException {
 984         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION).build();
 985         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 986         try {
 987             sendSyncMessage(message);
 988         } catch (UntrustedIdentityException e) {
 989             e.printStackTrace();
 990         }
 991     }
 992
 993     private byte[] getSenderCertificate() {
 994         // TODO support UUID capable sender certificates
 995         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
 996         byte[] certificate;
 997         try {
 998             certificate = accountManager.getSenderCertificate();
 999         } catch (IOException e) {
1000             System.err.println("Failed to get sender certificate: " + e);
1001             return null;
1002         }
1003         // TODO cache for a day
1004         return certificate;
1005     }
1006
1007     private byte[] getSelfUnidentifiedAccessKey() {
1008         return UnidentifiedAccess.deriveAccessKeyFrom(account.getProfileKey());
1009     }
1010
1011     private byte[] getTargetUnidentifiedAccessKey(SignalServiceAddress recipient) {
1012         ProfileKey theirProfileKey = account.getProfileStore().getProfileKey(recipient);
1013         if (theirProfileKey == null) {
1014             return null;
1015         }
1016         SignalProfile targetProfile;
1017         try {
1018             targetProfile = getRecipientProfile(recipient, Optional.absent(), theirProfileKey);
1019         } catch (IOException e) {
1020             System.err.println("Failed to get recipient profile: " + e);
1021             return null;
1022         }
1023
1024         if (targetProfile == null || targetProfile.getUnidentifiedAccess() == null) {
1025             return null;
1026         }
1027
1028         if (targetProfile.isUnrestrictedUnidentifiedAccess()) {
1029             return KeyUtils.createUnrestrictedUnidentifiedAccess();
1030         }
1031
1032         return UnidentifiedAccess.deriveAccessKeyFrom(theirProfileKey);
1033     }
1034
1035     private Optional<UnidentifiedAccessPair> getAccessForSync() {
1036         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
1037         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
1038
1039         if (selfUnidentifiedAccessKey == null || selfUnidentifiedAccessCertificate == null) {
1040             return Optional.absent();
1041         }
1042
1043         try {
1044             return Optional.of(new UnidentifiedAccessPair(
1045                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate),
1046                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate)
1047             ));
1048         } catch (InvalidCertificateException e) {
1049             return Optional.absent();
1050         }
1051     }
1052
1053     private List<Optional<UnidentifiedAccessPair>> getAccessFor(Collection<SignalServiceAddress> recipients) {
1054         List<Optional<UnidentifiedAccessPair>> result = new ArrayList<>(recipients.size());
1055         for (SignalServiceAddress recipient : recipients) {
1056             result.add(getAccessFor(recipient));
1057         }
1058         return result;
1059     }
1060
1061     private Optional<UnidentifiedAccessPair> getAccessFor(SignalServiceAddress recipient) {
1062         byte[] recipientUnidentifiedAccessKey = getTargetUnidentifiedAccessKey(recipient);
1063         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
1064         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
1065
1066         if (recipientUnidentifiedAccessKey == null || selfUnidentifiedAccessKey == null || selfUnidentifiedAccessCertificate == null) {
1067             return Optional.absent();
1068         }
1069
1070         try {
1071             return Optional.of(new UnidentifiedAccessPair(
1072                     new UnidentifiedAccess(recipientUnidentifiedAccessKey, selfUnidentifiedAccessCertificate),
1073                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate)
1074             ));
1075         } catch (InvalidCertificateException e) {
1076             return Optional.absent();
1077         }
1078     }
1079
1080     private Optional<UnidentifiedAccess> getUnidentifiedAccess(SignalServiceAddress recipient) {
1081         Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
1082
1083         if (unidentifiedAccess.isPresent()) {
1084             return unidentifiedAccess.get().getTargetUnidentifiedAccess();
1085         }
1086
1087         return Optional.absent();
1088     }
1089
1090     private void sendSyncMessage(SignalServiceSyncMessage message)
1091             throws IOException, UntrustedIdentityException {
1092         SignalServiceMessageSender messageSender = getMessageSender();
1093         try {
1094             messageSender.sendMessage(message, getAccessForSync());
1095         } catch (UntrustedIdentityException e) {
1096             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1097             throw e;
1098         }
1099     }
1100
1101     /**
1102      * This method throws an EncapsulatedExceptions exception instead of returning a list of SendMessageResult.
1103      */
1104     private long sendMessageLegacy(SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients)
1105             throws EncapsulatedExceptions, IOException {
1106         final long timestamp = System.currentTimeMillis();
1107         messageBuilder.withTimestamp(timestamp);
1108         List<SendMessageResult> results = sendMessage(messageBuilder, recipients);
1109
1110         List<UntrustedIdentityException> untrustedIdentities = new LinkedList<>();
1111         List<UnregisteredUserException> unregisteredUsers = new LinkedList<>();
1112         List<NetworkFailureException> networkExceptions = new LinkedList<>();
1113
1114         for (SendMessageResult result : results) {
1115             if (result.isUnregisteredFailure()) {
1116                 unregisteredUsers.add(new UnregisteredUserException(result.getAddress().getLegacyIdentifier(), null));
1117             } else if (result.isNetworkFailure()) {
1118                 networkExceptions.add(new NetworkFailureException(result.getAddress().getLegacyIdentifier(), null));
1119             } else if (result.getIdentityFailure() != null) {
1120                 untrustedIdentities.add(new UntrustedIdentityException("Untrusted", result.getAddress().getLegacyIdentifier(), result.getIdentityFailure().getIdentityKey()));
1121             }
1122         }
1123         if (!untrustedIdentities.isEmpty() || !unregisteredUsers.isEmpty() || !networkExceptions.isEmpty()) {
1124             throw new EncapsulatedExceptions(untrustedIdentities, unregisteredUsers, networkExceptions);
1125         }
1126         return timestamp;
1127     }
1128
1129     private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1130         final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
1131
1132         for (String number : numbers) {
1133             signalServiceAddresses.add(canonicalizeAndResolveSignalServiceAddress(number));
1134         }
1135         return signalServiceAddresses;
1136     }
1137
1138     private List<SendMessageResult> sendMessage(SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients)
1139             throws IOException {
1140         if (messagePipe == null) {
1141             messagePipe = getMessageReceiver().createMessagePipe();
1142         }
1143         if (unidentifiedMessagePipe == null) {
1144             unidentifiedMessagePipe = getMessageReceiver().createUnidentifiedMessagePipe();
1145         }
1146         SignalServiceDataMessage message = null;
1147         try {
1148             message = messageBuilder.build();
1149             if (message.getGroupContext().isPresent()) {
1150                 try {
1151                     SignalServiceMessageSender messageSender = getMessageSender();
1152                     final boolean isRecipientUpdate = false;
1153                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients), getAccessFor(recipients), isRecipientUpdate, message);
1154                     for (SendMessageResult r : result) {
1155                         if (r.getIdentityFailure() != null) {
1156                             account.getSignalProtocolStore().saveIdentity(r.getAddress(), r.getIdentityFailure().getIdentityKey(), TrustLevel.UNTRUSTED);
1157                         }
1158                     }
1159                     return result;
1160                 } catch (UntrustedIdentityException e) {
1161                     account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1162                     return Collections.emptyList();
1163                 }
1164             } else {
1165                 // Send to all individually, so sync messages are sent correctly
1166                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1167                 for (SignalServiceAddress address : recipients) {
1168                     ContactInfo contact = account.getContactStore().getContact(address);
1169                     if (contact != null) {
1170                         messageBuilder.withExpiration(contact.messageExpirationTime);
1171                         messageBuilder.withProfileKey(account.getProfileKey().serialize());
1172                     } else {
1173                         messageBuilder.withExpiration(0);
1174                         messageBuilder.withProfileKey(null);
1175                     }
1176                     message = messageBuilder.build();
1177                     if (address.matches(account.getSelfAddress())) {
1178                         results.add(sendSelfMessage(message));
1179                     } else {
1180                         results.add(sendMessage(address, message));
1181                     }
1182                 }
1183                 return results;
1184             }
1185         } finally {
1186             if (message != null && message.isEndSession()) {
1187                 for (SignalServiceAddress recipient : recipients) {
1188                     handleEndSession(recipient);
1189                 }
1190             }
1191             account.save();
1192         }
1193     }
1194
1195     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1196         SignalServiceMessageSender messageSender = getMessageSender();
1197
1198         SignalServiceAddress recipient = account.getSelfAddress();
1199
1200         final Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
1201         SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1202                 message.getTimestamp(),
1203                 message,
1204                 message.getExpiresInSeconds(),
1205                 Collections.singletonMap(recipient, unidentifiedAccess.isPresent()),
1206                 false);
1207         SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1208
1209         try {
1210             long startTime = System.currentTimeMillis();
1211             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1212             return SendMessageResult.success(recipient, unidentifiedAccess.isPresent(), false, System.currentTimeMillis() - startTime);
1213         } catch (UntrustedIdentityException e) {
1214             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1215             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1216         }
1217     }
1218
1219     private SendMessageResult sendMessage(SignalServiceAddress address, SignalServiceDataMessage message) throws IOException {
1220         SignalServiceMessageSender messageSender = getMessageSender();
1221
1222         try {
1223             return messageSender.sendMessage(address, getAccessFor(address), message);
1224         } catch (UntrustedIdentityException e) {
1225             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1226             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1227         }
1228     }
1229
1230     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1231         SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(), account.getSignalProtocolStore(), Utils.getCertificateValidator());
1232         try {
1233             return cipher.decrypt(envelope);
1234         } catch (ProtocolUntrustedIdentityException e) {
1235             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1236                 org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e.getCause();
1237                 account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(identityException.getName()), identityException.getUntrustedIdentity(), TrustLevel.UNTRUSTED);
1238                 throw identityException;
1239             }
1240             throw new AssertionError(e);
1241         }
1242     }
1243
1244     private void handleEndSession(SignalServiceAddress source) {
1245         account.getSignalProtocolStore().deleteAllSessions(source);
1246     }
1247
1248     private List<HandleAction> handleSignalServiceDataMessage(SignalServiceDataMessage message, boolean isSync, SignalServiceAddress source, SignalServiceAddress destination, boolean ignoreAttachments) {
1249         List<HandleAction> actions = new ArrayList<>();
1250         if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1251             SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1252             GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
1253             switch (groupInfo.getType()) {
1254                 case UPDATE:
1255                     if (group == null) {
1256                         group = new GroupInfo(groupInfo.getGroupId());
1257                     }
1258
1259                     if (groupInfo.getAvatar().isPresent()) {
1260                         SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1261                         if (avatar.isPointer()) {
1262                             try {
1263                                 retrieveGroupAvatarAttachment(avatar.asPointer(), group.groupId);
1264                             } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1265                                 System.err.println("Failed to retrieve group avatar (" + avatar.asPointer().getRemoteId() + "): " + e.getMessage());
1266                             }
1267                         }
1268                     }
1269
1270                     if (groupInfo.getName().isPresent()) {
1271                         group.name = groupInfo.getName().get();
1272                     }
1273
1274                     if (groupInfo.getMembers().isPresent()) {
1275                         group.addMembers(groupInfo.getMembers().get()
1276                                 .stream()
1277                                 .map(this::resolveSignalServiceAddress)
1278                                 .collect(Collectors.toSet()));
1279                     }
1280
1281                     account.getGroupStore().updateGroup(group);
1282                     break;
1283                 case DELIVER:
1284                     if (group == null && !isSync) {
1285                         actions.add(new SendGroupInfoRequestAction(source, groupInfo.getGroupId()));
1286                     }
1287                     break;
1288                 case QUIT:
1289                     if (group != null) {
1290                         group.removeMember(source);
1291                         account.getGroupStore().updateGroup(group);
1292                     }
1293                     break;
1294                 case REQUEST_INFO:
1295                     if (group != null && !isSync) {
1296                         actions.add(new SendGroupUpdateAction(source, group.groupId));
1297                     }
1298                     break;
1299             }
1300         }
1301         final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;
1302         if (message.isEndSession()) {
1303             handleEndSession(conversationPartnerAddress);
1304         }
1305         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1306             if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1307                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1308                 GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
1309                 if (group == null) {
1310                     group = new GroupInfo(groupInfo.getGroupId());
1311                 }
1312                 if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1313                     group.messageExpirationTime = message.getExpiresInSeconds();
1314                     account.getGroupStore().updateGroup(group);
1315                 }
1316             } else {
1317                 ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
1318                 if (contact == null) {
1319                     contact = new ContactInfo(conversationPartnerAddress);
1320                 }
1321                 if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
1322                     contact.messageExpirationTime = message.getExpiresInSeconds();
1323                     account.getContactStore().updateContact(contact);
1324                 }
1325             }
1326         }
1327         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1328             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1329                 if (attachment.isPointer()) {
1330                     try {
1331                         retrieveAttachment(attachment.asPointer());
1332                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1333                         System.err.println("Failed to retrieve attachment (" + attachment.asPointer().getRemoteId() + "): " + e.getMessage());
1334                     }
1335                 }
1336             }
1337         }
1338         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1339             final ProfileKey profileKey;
1340             try {
1341                 profileKey = new ProfileKey(message.getProfileKey().get());
1342             } catch (InvalidInputException e) {
1343                 throw new AssertionError(e);
1344             }
1345             if (source.matches(account.getSelfAddress())) {
1346                 this.account.setProfileKey(profileKey);
1347             }
1348             this.account.getProfileStore().storeProfileKey(source, profileKey);
1349         }
1350         if (message.getPreviews().isPresent()) {
1351             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1352             for (SignalServiceDataMessage.Preview preview : previews) {
1353                 if (preview.getImage().isPresent() && preview.getImage().get().isPointer()) {
1354                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
1355                     try {
1356                         retrieveAttachment(attachment);
1357                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1358                         System.err.println("Failed to retrieve attachment (" + attachment.getRemoteId() + "): " + e.getMessage());
1359                     }
1360                 }
1361             }
1362         }
1363         return actions;
1364     }
1365
1366     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1367         final File cachePath = new File(getMessageCachePath());
1368         if (!cachePath.exists()) {
1369             return;
1370         }
1371         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
1372             if (!dir.isDirectory()) {
1373                 retryFailedReceivedMessage(handler, ignoreAttachments, dir);
1374                 continue;
1375             }
1376
1377             for (final File fileEntry : Objects.requireNonNull(dir.listFiles())) {
1378                 if (!fileEntry.isFile()) {
1379                     continue;
1380                 }
1381                 retryFailedReceivedMessage(handler, ignoreAttachments, fileEntry);
1382             }
1383             // Try to delete directory if empty
1384             dir.delete();
1385         }
1386     }
1387
1388     private void retryFailedReceivedMessage(final ReceiveMessageHandler handler, final boolean ignoreAttachments, final File fileEntry) {
1389         SignalServiceEnvelope envelope;
1390         try {
1391             envelope = Utils.loadEnvelope(fileEntry);
1392             if (envelope == null) {
1393                 return;
1394             }
1395         } catch (IOException e) {
1396             e.printStackTrace();
1397             return;
1398         }
1399         SignalServiceContent content = null;
1400         if (!envelope.isReceipt()) {
1401             try {
1402                 content = decryptMessage(envelope);
1403             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1404                 return;
1405             } catch (Exception er) {
1406                 // All other errors are not recoverable, so delete the cached message
1407                 try {
1408                     Files.delete(fileEntry.toPath());
1409                 } catch (IOException e) {
1410                     System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1411                 }
1412                 return;
1413             }
1414             List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1415             for (HandleAction action : actions) {
1416                 try {
1417                     action.execute(this);
1418                 } catch (Throwable e) {
1419                     e.printStackTrace();
1420                 }
1421             }
1422         }
1423         account.save();
1424         handler.handleMessage(envelope, content, null);
1425         try {
1426             Files.delete(fileEntry.toPath());
1427         } catch (IOException e) {
1428             System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1429         }
1430     }
1431
1432     public void receiveMessages(long timeout, TimeUnit unit, boolean returnOnTimeout, boolean ignoreAttachments, ReceiveMessageHandler handler) throws IOException {
1433         retryFailedReceivedMessages(handler, ignoreAttachments);
1434         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1435
1436         Set<HandleAction> queuedActions = null;
1437
1438         if (messagePipe == null) {
1439             messagePipe = messageReceiver.createMessagePipe();
1440         }
1441
1442         boolean hasCaughtUpWithOldMessages = false;
1443
1444         while (true) {
1445             SignalServiceEnvelope envelope;
1446             SignalServiceContent content = null;
1447             Exception exception = null;
1448             final long now = new Date().getTime();
1449             try {
1450                 Optional<SignalServiceEnvelope> result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1451                     // store message on disk, before acknowledging receipt to the server
1452                     try {
1453                         String source = envelope1.getSourceE164().isPresent() ? envelope1.getSourceE164().get() : "";
1454                         File cacheFile = getMessageCacheFile(source, now, envelope1.getTimestamp());
1455                         Utils.storeEnvelope(envelope1, cacheFile);
1456                     } catch (IOException e) {
1457                         System.err.println("Failed to store encrypted message in disk cache, ignoring: " + e.getMessage());
1458                     }
1459                 });
1460                 if (result.isPresent()) {
1461                     envelope = result.get();
1462                 } else {
1463                     // Received indicator that server queue is empty
1464                     hasCaughtUpWithOldMessages = true;
1465
1466                     if (queuedActions != null) {
1467                         for (HandleAction action : queuedActions) {
1468                             try {
1469                                 action.execute(this);
1470                             } catch (Throwable e) {
1471                                 e.printStackTrace();
1472                             }
1473                         }
1474                         account.save();
1475                         queuedActions.clear();
1476                         queuedActions = null;
1477                     }
1478
1479                     // Continue to wait another timeout for new messages
1480                     continue;
1481                 }
1482             } catch (TimeoutException e) {
1483                 if (returnOnTimeout)
1484                     return;
1485                 continue;
1486             } catch (InvalidVersionException e) {
1487                 System.err.println("Ignoring error: " + e.getMessage());
1488                 continue;
1489             }
1490
1491             if (envelope.hasSource()) {
1492                 // Store uuid if we don't have it already
1493                 SignalServiceAddress source = envelope.getSourceAddress();
1494                 resolveSignalServiceAddress(source);
1495             }
1496             if (!envelope.isReceipt()) {
1497                 try {
1498                     content = decryptMessage(envelope);
1499                 } catch (Exception e) {
1500                     exception = e;
1501                 }
1502                 List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1503                 if (hasCaughtUpWithOldMessages) {
1504                     for (HandleAction action : actions) {
1505                         try {
1506                             action.execute(this);
1507                         } catch (Throwable e) {
1508                             e.printStackTrace();
1509                         }
1510                     }
1511                 } else {
1512                     if (queuedActions == null) {
1513                         queuedActions = new HashSet<>();
1514                     }
1515                     queuedActions.addAll(actions);
1516                 }
1517             }
1518             account.save();
1519             if (!isMessageBlocked(envelope, content)) {
1520                 handler.handleMessage(envelope, content, exception);
1521             }
1522             if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
1523                 File cacheFile = null;
1524                 try {
1525                     String source = envelope.getSourceE164().isPresent() ? envelope.getSourceE164().get() : "";
1526                     cacheFile = getMessageCacheFile(source, now, envelope.getTimestamp());
1527                     Files.delete(cacheFile.toPath());
1528                     // Try to delete directory if empty
1529                     new File(getMessageCachePath()).delete();
1530                 } catch (IOException e) {
1531                     System.err.println("Failed to delete cached message file “" + cacheFile + "”: " + e.getMessage());
1532                 }
1533             }
1534         }
1535     }
1536
1537     private boolean isMessageBlocked(SignalServiceEnvelope envelope, SignalServiceContent content) {
1538         SignalServiceAddress source;
1539         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1540             source = envelope.getSourceAddress();
1541         } else if (content != null) {
1542             source = content.getSender();
1543         } else {
1544             return false;
1545         }
1546         ContactInfo sourceContact = account.getContactStore().getContact(source);
1547         if (sourceContact != null && sourceContact.blocked) {
1548             return true;
1549         }
1550
1551         if (content != null && content.getDataMessage().isPresent()) {
1552             SignalServiceDataMessage message = content.getDataMessage().get();
1553             if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1554                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1555                 GroupInfo group = getGroup(groupInfo.getGroupId());
1556                 if (groupInfo.getType() == SignalServiceGroup.Type.DELIVER && group != null && group.blocked) {
1557                     return true;
1558                 }
1559             }
1560         }
1561         return false;
1562     }
1563
1564     private List<HandleAction> handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments) {
1565         List<HandleAction> actions = new ArrayList<>();
1566         if (content != null) {
1567             SignalServiceAddress sender;
1568             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1569                 sender = envelope.getSourceAddress();
1570             } else {
1571                 sender = content.getSender();
1572             }
1573             // Store uuid if we don't have it already
1574             resolveSignalServiceAddress(sender);
1575
1576             if (content.getDataMessage().isPresent()) {
1577                 SignalServiceDataMessage message = content.getDataMessage().get();
1578
1579                 if (content.isNeedsReceipt()) {
1580                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1581                 }
1582
1583                 actions.addAll(handleSignalServiceDataMessage(message, false, sender, account.getSelfAddress(), ignoreAttachments));
1584             }
1585             if (content.getSyncMessage().isPresent()) {
1586                 account.setMultiDevice(true);
1587                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1588                 if (syncMessage.getSent().isPresent()) {
1589                     SentTranscriptMessage message = syncMessage.getSent().get();
1590                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(), true, sender, message.getDestination().orNull(), ignoreAttachments));
1591                 }
1592                 if (syncMessage.getRequest().isPresent()) {
1593                     RequestMessage rm = syncMessage.getRequest().get();
1594                     if (rm.isContactsRequest()) {
1595                         actions.add(SendSyncContactsAction.create());
1596                     }
1597                     if (rm.isGroupsRequest()) {
1598                         actions.add(SendSyncGroupsAction.create());
1599                     }
1600                     if (rm.isBlockedListRequest()) {
1601                         actions.add(SendSyncBlockedListAction.create());
1602                     }
1603                     // TODO Handle rm.isConfigurationRequest();
1604                 }
1605                 if (syncMessage.getGroups().isPresent()) {
1606                     File tmpFile = null;
1607                     try {
1608                         tmpFile = IOUtils.createTempFile();
1609                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups().get().asPointer(), tmpFile)) {
1610                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1611                             DeviceGroup g;
1612                             while ((g = s.read()) != null) {
1613                                 GroupInfo syncGroup = account.getGroupStore().getGroup(g.getId());
1614                                 if (syncGroup == null) {
1615                                     syncGroup = new GroupInfo(g.getId());
1616                                 }
1617                                 if (g.getName().isPresent()) {
1618                                     syncGroup.name = g.getName().get();
1619                                 }
1620                                 syncGroup.addMembers(g.getMembers()
1621                                         .stream()
1622                                         .map(this::resolveSignalServiceAddress)
1623                                         .collect(Collectors.toSet()));
1624                                 if (!g.isActive()) {
1625                                     syncGroup.removeMember(account.getSelfAddress());
1626                                 } else {
1627                                     // Add ourself to the member set as it's marked as active
1628                                     syncGroup.addMembers(Collections.singleton(account.getSelfAddress()));
1629                                 }
1630                                 syncGroup.blocked = g.isBlocked();
1631                                 if (g.getColor().isPresent()) {
1632                                     syncGroup.color = g.getColor().get();
1633                                 }
1634
1635                                 if (g.getAvatar().isPresent()) {
1636                                     retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId);
1637                                 }
1638                                 syncGroup.inboxPosition = g.getInboxPosition().orNull();
1639                                 syncGroup.archived = g.isArchived();
1640                                 account.getGroupStore().updateGroup(syncGroup);
1641                             }
1642                         }
1643                     } catch (Exception e) {
1644                         e.printStackTrace();
1645                     } finally {
1646                         if (tmpFile != null) {
1647                             try {
1648                                 Files.delete(tmpFile.toPath());
1649                             } catch (IOException e) {
1650                                 System.err.println("Failed to delete received groups temp file “" + tmpFile + "”: " + e.getMessage());
1651                             }
1652                         }
1653                     }
1654                 }
1655                 if (syncMessage.getBlockedList().isPresent()) {
1656                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1657                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1658                         setContactBlocked(resolveSignalServiceAddress(address), true);
1659                     }
1660                     for (byte[] groupId : blockedListMessage.getGroupIds()) {
1661                         try {
1662                             setGroupBlocked(groupId, true);
1663                         } catch (GroupNotFoundException e) {
1664                             System.err.println("BlockedListMessage contained groupID that was not found in GroupStore: " + Base64.encodeBytes(groupId));
1665                         }
1666                     }
1667                 }
1668                 if (syncMessage.getContacts().isPresent()) {
1669                     File tmpFile = null;
1670                     try {
1671                         tmpFile = IOUtils.createTempFile();
1672                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1673                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream().asPointer(), tmpFile)) {
1674                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1675                             if (contactsMessage.isComplete()) {
1676                                 account.getContactStore().clear();
1677                             }
1678                             DeviceContact c;
1679                             while ((c = s.read()) != null) {
1680                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
1681                                     account.setProfileKey(c.getProfileKey().get());
1682                                 }
1683                                 final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
1684                                 ContactInfo contact = account.getContactStore().getContact(address);
1685                                 if (contact == null) {
1686                                     contact = new ContactInfo(address);
1687                                 }
1688                                 if (c.getName().isPresent()) {
1689                                     contact.name = c.getName().get();
1690                                 }
1691                                 if (c.getColor().isPresent()) {
1692                                     contact.color = c.getColor().get();
1693                                 }
1694                                 if (c.getProfileKey().isPresent()) {
1695                                     account.getProfileStore().storeProfileKey(address, c.getProfileKey().get());
1696                                 }
1697                                 if (c.getVerified().isPresent()) {
1698                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
1699                                     account.getSignalProtocolStore().setIdentityTrustLevel(verifiedMessage.getDestination(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1700                                 }
1701                                 if (c.getExpirationTimer().isPresent()) {
1702                                     contact.messageExpirationTime = c.getExpirationTimer().get();
1703                                 }
1704                                 contact.blocked = c.isBlocked();
1705                                 contact.inboxPosition = c.getInboxPosition().orNull();
1706                                 contact.archived = c.isArchived();
1707                                 account.getContactStore().updateContact(contact);
1708
1709                                 if (c.getAvatar().isPresent()) {
1710                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
1711                                 }
1712                             }
1713                         }
1714                     } catch (Exception e) {
1715                         e.printStackTrace();
1716                     } finally {
1717                         if (tmpFile != null) {
1718                             try {
1719                                 Files.delete(tmpFile.toPath());
1720                             } catch (IOException e) {
1721                                 System.err.println("Failed to delete received contacts temp file “" + tmpFile + "”: " + e.getMessage());
1722                             }
1723                         }
1724                     }
1725                 }
1726                 if (syncMessage.getVerified().isPresent()) {
1727                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
1728                     account.getSignalProtocolStore().setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1729                 }
1730                 if (syncMessage.getConfiguration().isPresent()) {
1731                     // TODO
1732                 }
1733             }
1734         }
1735         return actions;
1736     }
1737
1738     private File getContactAvatarFile(String number) {
1739         return new File(pathConfig.getAvatarsPath(), "contact-" + number);
1740     }
1741
1742     private File retrieveContactAvatarAttachment(SignalServiceAttachment attachment, String number) throws IOException, InvalidMessageException, MissingConfigurationException {
1743         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1744         if (attachment.isPointer()) {
1745             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1746             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
1747         } else {
1748             SignalServiceAttachmentStream stream = attachment.asStream();
1749             return Utils.retrieveAttachment(stream, getContactAvatarFile(number));
1750         }
1751     }
1752
1753     private File getGroupAvatarFile(byte[] groupId) {
1754         return new File(pathConfig.getAvatarsPath(), "group-" + Base64.encodeBytes(groupId).replace("/", "_"));
1755     }
1756
1757     private File retrieveGroupAvatarAttachment(SignalServiceAttachment attachment, byte[] groupId) throws IOException, InvalidMessageException, MissingConfigurationException {
1758         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1759         if (attachment.isPointer()) {
1760             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1761             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
1762         } else {
1763             SignalServiceAttachmentStream stream = attachment.asStream();
1764             return Utils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
1765         }
1766     }
1767
1768     private File getProfileAvatarFile(SignalServiceAddress address) {
1769         return new File(pathConfig.getAvatarsPath(), "profile-" + address.getLegacyIdentifier());
1770     }
1771
1772     private File retrieveProfileAvatar(SignalServiceAddress address, String avatarPath, ProfileKey profileKey) throws IOException {
1773         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1774         SignalServiceMessageReceiver receiver = getMessageReceiver();
1775         File outputFile = getProfileAvatarFile(address);
1776
1777         File tmpFile = IOUtils.createTempFile();
1778         try (InputStream input = receiver.retrieveProfileAvatar(avatarPath, tmpFile, profileKey, ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
1779             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
1780             IOUtils.copyStreamToFile(input, outputFile, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
1781         } finally {
1782             try {
1783                 Files.delete(tmpFile.toPath());
1784             } catch (IOException e) {
1785                 System.err.println("Failed to delete received avatar temp file “" + tmpFile + "”: " + e.getMessage());
1786             }
1787         }
1788         return outputFile;
1789     }
1790
1791     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
1792         return new File(pathConfig.getAttachmentsPath(), attachmentId.toString());
1793     }
1794
1795     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException, MissingConfigurationException {
1796         IOUtils.createPrivateDirectories(pathConfig.getAttachmentsPath());
1797         return retrieveAttachment(pointer, getAttachmentFile(pointer.getRemoteId()), true);
1798     }
1799
1800     private File retrieveAttachment(SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview) throws IOException, InvalidMessageException, MissingConfigurationException {
1801         if (storePreview && pointer.getPreview().isPresent()) {
1802             File previewFile = new File(outputFile + ".preview");
1803             try (OutputStream output = new FileOutputStream(previewFile)) {
1804                 byte[] preview = pointer.getPreview().get();
1805                 output.write(preview, 0, preview.length);
1806             } catch (FileNotFoundException e) {
1807                 e.printStackTrace();
1808                 return null;
1809             }
1810         }
1811
1812         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1813
1814         File tmpFile = IOUtils.createTempFile();
1815         try (InputStream input = messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE)) {
1816             IOUtils.copyStreamToFile(input, outputFile);
1817         } finally {
1818             try {
1819                 Files.delete(tmpFile.toPath());
1820             } catch (IOException e) {
1821                 System.err.println("Failed to delete received attachment temp file “" + tmpFile + "”: " + e.getMessage());
1822             }
1823         }
1824         return outputFile;
1825     }
1826
1827     private InputStream retrieveAttachmentAsStream(SignalServiceAttachmentPointer pointer, File tmpFile) throws IOException, InvalidMessageException, MissingConfigurationException {
1828         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1829         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
1830     }
1831
1832     void sendGroups() throws IOException, UntrustedIdentityException {
1833         File groupsFile = IOUtils.createTempFile();
1834
1835         try {
1836             try (OutputStream fos = new FileOutputStream(groupsFile)) {
1837                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
1838                 for (GroupInfo record : account.getGroupStore().getGroups()) {
1839                     out.write(new DeviceGroup(record.groupId, Optional.fromNullable(record.name),
1840                             new ArrayList<>(record.getMembers()), createGroupAvatarAttachment(record.groupId),
1841                             record.isMember(account.getSelfAddress()), Optional.of(record.messageExpirationTime),
1842                             Optional.fromNullable(record.color), record.blocked, Optional.fromNullable(record.inboxPosition), record.archived));
1843                 }
1844             }
1845
1846             if (groupsFile.exists() && groupsFile.length() > 0) {
1847                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
1848                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1849                             .withStream(groupsFileStream)
1850                             .withContentType("application/octet-stream")
1851                             .withLength(groupsFile.length())
1852                             .build();
1853
1854                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
1855                 }
1856             }
1857         } finally {
1858             try {
1859                 Files.delete(groupsFile.toPath());
1860             } catch (IOException e) {
1861                 System.err.println("Failed to delete groups temp file “" + groupsFile + "”: " + e.getMessage());
1862             }
1863         }
1864     }
1865
1866     public void sendContacts() throws IOException, UntrustedIdentityException {
1867         File contactsFile = IOUtils.createTempFile();
1868
1869         try {
1870             try (OutputStream fos = new FileOutputStream(contactsFile)) {
1871                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
1872                 for (ContactInfo record : account.getContactStore().getContacts()) {
1873                     VerifiedMessage verifiedMessage = null;
1874                     JsonIdentityKeyStore.Identity currentIdentity = account.getSignalProtocolStore().getIdentity(record.getAddress());
1875                     if (currentIdentity != null) {
1876                         verifiedMessage = new VerifiedMessage(record.getAddress(), currentIdentity.getIdentityKey(), currentIdentity.getTrustLevel().toVerifiedState(), currentIdentity.getDateAdded().getTime());
1877                     }
1878
1879                     ProfileKey profileKey = account.getProfileStore().getProfileKey(record.getAddress());
1880                     out.write(new DeviceContact(record.getAddress(), Optional.fromNullable(record.name),
1881                             createContactAvatarAttachment(record.number), Optional.fromNullable(record.color),
1882                             Optional.fromNullable(verifiedMessage), Optional.fromNullable(profileKey), record.blocked,
1883                             Optional.of(record.messageExpirationTime),
1884                             Optional.fromNullable(record.inboxPosition), record.archived));
1885                 }
1886
1887                 if (account.getProfileKey() != null) {
1888                     // Send our own profile key as well
1889                     out.write(new DeviceContact(account.getSelfAddress(),
1890                             Optional.absent(), Optional.absent(),
1891                             Optional.absent(), Optional.absent(),
1892                             Optional.of(account.getProfileKey()),
1893                             false, Optional.absent(), Optional.absent(), false));
1894                 }
1895             }
1896
1897             if (contactsFile.exists() && contactsFile.length() > 0) {
1898                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
1899                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1900                             .withStream(contactsFileStream)
1901                             .withContentType("application/octet-stream")
1902                             .withLength(contactsFile.length())
1903                             .build();
1904
1905                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
1906                 }
1907             }
1908         } finally {
1909             try {
1910                 Files.delete(contactsFile.toPath());
1911             } catch (IOException e) {
1912                 System.err.println("Failed to delete contacts temp file “" + contactsFile + "”: " + e.getMessage());
1913             }
1914         }
1915     }
1916
1917     void sendBlockedList() throws IOException, UntrustedIdentityException {
1918         List<SignalServiceAddress> addresses = new ArrayList<>();
1919         for (ContactInfo record : account.getContactStore().getContacts()) {
1920             if (record.blocked) {
1921                 addresses.add(record.getAddress());
1922             }
1923         }
1924         List<byte[]> groupIds = new ArrayList<>();
1925         for (GroupInfo record : account.getGroupStore().getGroups()) {
1926             if (record.blocked) {
1927                 groupIds.add(record.groupId);
1928             }
1929         }
1930         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
1931     }
1932
1933     private void sendVerifiedMessage(SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel) throws IOException, UntrustedIdentityException {
1934         VerifiedMessage verifiedMessage = new VerifiedMessage(destination, identityKey, trustLevel.toVerifiedState(), System.currentTimeMillis());
1935         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
1936     }
1937
1938     public List<ContactInfo> getContacts() {
1939         return account.getContactStore().getContacts();
1940     }
1941
1942     public ContactInfo getContact(String number) {
1943         return account.getContactStore().getContact(Util.getSignalServiceAddressFromIdentifier(number));
1944     }
1945
1946     public GroupInfo getGroup(byte[] groupId) {
1947         return account.getGroupStore().getGroup(groupId);
1948     }
1949
1950     public List<JsonIdentityKeyStore.Identity> getIdentities() {
1951         return account.getSignalProtocolStore().getIdentities();
1952     }
1953
1954     public List<JsonIdentityKeyStore.Identity> getIdentities(String number) throws InvalidNumberException {
1955         return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));
1956     }
1957
1958     /**
1959      * Trust this the identity with this fingerprint
1960      *
1961      * @param name        username of the identity
1962      * @param fingerprint Fingerprint
1963      */
1964     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
1965         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
1966         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
1967         if (ids == null) {
1968             return false;
1969         }
1970         for (JsonIdentityKeyStore.Identity id : ids) {
1971             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
1972                 continue;
1973             }
1974
1975             account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1976             try {
1977                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1978             } catch (IOException | UntrustedIdentityException e) {
1979                 e.printStackTrace();
1980             }
1981             account.save();
1982             return true;
1983         }
1984         return false;
1985     }
1986
1987     /**
1988      * Trust this the identity with this safety number
1989      *
1990      * @param name         username of the identity
1991      * @param safetyNumber Safety number
1992      */
1993     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
1994         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
1995         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
1996         if (ids == null) {
1997             return false;
1998         }
1999         for (JsonIdentityKeyStore.Identity id : ids) {
2000             if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {
2001                 continue;
2002             }
2003
2004             account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2005             try {
2006                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2007             } catch (IOException | UntrustedIdentityException e) {
2008                 e.printStackTrace();
2009             }
2010             account.save();
2011             return true;
2012         }
2013         return false;
2014     }
2015
2016     /**
2017      * Trust all keys of this identity without verification
2018      *
2019      * @param name username of the identity
2020      */
2021     public boolean trustIdentityAllKeys(String name) {
2022         SignalServiceAddress address = resolveSignalServiceAddress(name);
2023         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2024         if (ids == null) {
2025             return false;
2026         }
2027         for (JsonIdentityKeyStore.Identity id : ids) {
2028             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2029                 account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2030                 try {
2031                     sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2032                 } catch (IOException | UntrustedIdentityException e) {
2033                     e.printStackTrace();
2034                 }
2035             }
2036         }
2037         account.save();
2038         return true;
2039     }
2040
2041     public String computeSafetyNumber(SignalServiceAddress theirAddress, IdentityKey theirIdentityKey) {
2042         return Utils.computeSafetyNumber(account.getSelfAddress(), getIdentityKeyPair().getPublicKey(), theirAddress, theirIdentityKey);
2043     }
2044
2045     void saveAccount() {
2046         account.save();
2047     }
2048
2049     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2050         String canonicalizedNumber = UuidUtil.isUuid(identifier) ? identifier : Util.canonicalizeNumber(identifier, account.getUsername());
2051         return resolveSignalServiceAddress(canonicalizedNumber);
2052     }
2053
2054     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2055         SignalServiceAddress address = Util.getSignalServiceAddressFromIdentifier(identifier);
2056
2057         return resolveSignalServiceAddress(address);
2058     }
2059
2060     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2061         if (address.matches(account.getSelfAddress())) {
2062             return account.getSelfAddress();
2063         }
2064
2065         return account.getRecipientStore().resolveServiceAddress(address);
2066     }
2067
2068     @Override
2069     public void close() throws IOException {
2070         if (messagePipe != null) {
2071             messagePipe.shutdown();
2072             messagePipe = null;
2073         }
2074
2075         if (unidentifiedMessagePipe != null) {
2076             unidentifiedMessagePipe.shutdown();
2077             unidentifiedMessagePipe = null;
2078         }
2079
2080         account.close();
2081     }
2082
2083     public interface ReceiveMessageHandler {
2084
2085         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2086     }
2087 }