nmode's Git Repositories - signal-cli/blob - src/main/java/org/asamk/signal/manager/Manager.java

   1 /*
   2   Copyright (C) 2015-2020 AsamK and contributors
   3
   4   This program is free software: you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation, either version 3 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.asamk.signal.manager;
  18
  19 import com.fasterxml.jackson.databind.ObjectMapper;
  20
  21 import org.asamk.signal.storage.SignalAccount;
  22 import org.asamk.signal.storage.contacts.ContactInfo;
  23 import org.asamk.signal.storage.groups.GroupInfo;
  24 import org.asamk.signal.storage.groups.JsonGroupStore;
  25 import org.asamk.signal.storage.profiles.SignalProfile;
  26 import org.asamk.signal.storage.profiles.SignalProfileEntry;
  27 import org.asamk.signal.storage.protocol.JsonIdentityKeyStore;
  28 import org.asamk.signal.util.IOUtils;
  29 import org.asamk.signal.util.Util;
  30 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  31 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  32 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  33 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  34 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  35 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  36 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  37 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  38 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  39 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  40 import org.signal.libsignal.metadata.SelfSendException;
  41 import org.signal.libsignal.metadata.certificate.InvalidCertificateException;
  42 import org.signal.zkgroup.InvalidInputException;
  43 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  44 import org.signal.zkgroup.profiles.ProfileKey;
  45 import org.whispersystems.libsignal.IdentityKey;
  46 import org.whispersystems.libsignal.IdentityKeyPair;
  47 import org.whispersystems.libsignal.InvalidKeyException;
  48 import org.whispersystems.libsignal.InvalidMessageException;
  49 import org.whispersystems.libsignal.InvalidVersionException;
  50 import org.whispersystems.libsignal.ecc.Curve;
  51 import org.whispersystems.libsignal.ecc.ECKeyPair;
  52 import org.whispersystems.libsignal.ecc.ECPublicKey;
  53 import org.whispersystems.libsignal.state.PreKeyRecord;
  54 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  55 import org.whispersystems.libsignal.util.KeyHelper;
  56 import org.whispersystems.libsignal.util.Medium;
  57 import org.whispersystems.libsignal.util.Pair;
  58 import org.whispersystems.libsignal.util.guava.Optional;
  59 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  60 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  61 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  62 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  63 import org.whispersystems.signalservice.api.crypto.InvalidCiphertextException;
  64 import org.whispersystems.signalservice.api.crypto.ProfileCipher;
  65 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  66 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccess;
  67 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
  68 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  69 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  70 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  71 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  72 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  73 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  74 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
  75 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
  76 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
  77 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  78 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
  79 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
  80 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
  81 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload;
  82 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload.StickerInfo;
  83 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
  84 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
  85 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
  86 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
  87 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
  88 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
  89 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
  90 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
  91 import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
  92 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
  93 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
  94 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
  95 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
  96 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
  97 import org.whispersystems.signalservice.api.push.ContactTokenDetails;
  98 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  99 import org.whispersystems.signalservice.api.push.exceptions.EncapsulatedExceptions;
 100 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 101 import org.whispersystems.signalservice.api.push.exceptions.NetworkFailureException;
 102 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 103 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 104 import org.whispersystems.signalservice.api.util.SleepTimer;
 105 import org.whispersystems.signalservice.api.util.StreamDetails;
 106 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 107 import org.whispersystems.signalservice.api.util.UuidUtil;
 108 import org.whispersystems.signalservice.internal.configuration.SignalServiceConfiguration;
 109 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 110 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 111 import org.whispersystems.signalservice.internal.push.VerifyAccountResponse;
 112 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 113 import org.whispersystems.signalservice.internal.util.Hex;
 114 import org.whispersystems.util.Base64;
 115
 116 import java.io.Closeable;
 117 import java.io.File;
 118 import java.io.FileInputStream;
 119 import java.io.FileNotFoundException;
 120 import java.io.FileOutputStream;
 121 import java.io.IOException;
 122 import java.io.InputStream;
 123 import java.io.OutputStream;
 124 import java.net.URI;
 125 import java.net.URISyntaxException;
 126 import java.net.URLEncoder;
 127 import java.nio.file.Files;
 128 import java.nio.file.Paths;
 129 import java.nio.file.StandardCopyOption;
 130 import java.util.ArrayList;
 131 import java.util.Arrays;
 132 import java.util.Collection;
 133 import java.util.Collections;
 134 import java.util.Date;
 135 import java.util.HashSet;
 136 import java.util.LinkedList;
 137 import java.util.List;
 138 import java.util.Locale;
 139 import java.util.Objects;
 140 import java.util.Set;
 141 import java.util.UUID;
 142 import java.util.concurrent.ExecutionException;
 143 import java.util.concurrent.ExecutorService;
 144 import java.util.concurrent.TimeUnit;
 145 import java.util.concurrent.TimeoutException;
 146 import java.util.stream.Collectors;
 147 import java.util.zip.ZipEntry;
 148 import java.util.zip.ZipFile;
 149
 150 import static org.asamk.signal.manager.ServiceConfig.capabilities;
 151
 152 public class Manager implements Closeable {
 153
 154     private final SleepTimer timer = new UptimeSleepTimer();
 155     private final SignalServiceConfiguration serviceConfiguration;
 156     private final String userAgent;
 157
 158     private final SignalAccount account;
 159     private final PathConfig pathConfig;
 160     private SignalServiceAccountManager accountManager;
 161     private SignalServiceMessagePipe messagePipe = null;
 162     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 163     private boolean discoverableByPhoneNumber = true;
 164
 165     public Manager(SignalAccount account, PathConfig pathConfig, SignalServiceConfiguration serviceConfiguration, String userAgent) {
 166         this.account = account;
 167         this.pathConfig = pathConfig;
 168         this.serviceConfiguration = serviceConfiguration;
 169         this.userAgent = userAgent;
 170         this.accountManager = createSignalServiceAccountManager();
 171
 172         this.account.setResolver(this::resolveSignalServiceAddress);
 173     }
 174
 175     public String getUsername() {
 176         return account.getUsername();
 177     }
 178
 179     public SignalServiceAddress getSelfAddress() {
 180         return account.getSelfAddress();
 181     }
 182
 183     private SignalServiceAccountManager createSignalServiceAccountManager() {
 184         GroupsV2Operations groupsV2Operations;
 185         try {
 186             groupsV2Operations = new GroupsV2Operations(ClientZkOperations.create(serviceConfiguration));
 187         } catch (Throwable ignored) {
 188             groupsV2Operations = null;
 189         }
 190         return new SignalServiceAccountManager(serviceConfiguration,
 191                 new DynamicCredentialsProvider(account.getUuid(), account.getUsername(), account.getPassword(), null, account.getDeviceId()),
 192                 userAgent,
 193                 groupsV2Operations,
 194                 timer);
 195     }
 196
 197     private IdentityKeyPair getIdentityKeyPair() {
 198         return account.getSignalProtocolStore().getIdentityKeyPair();
 199     }
 200
 201     public int getDeviceId() {
 202         return account.getDeviceId();
 203     }
 204
 205     private String getMessageCachePath() {
 206         return pathConfig.getDataPath() + "/" + account.getUsername() + ".d/msg-cache";
 207     }
 208
 209     private String getMessageCachePath(String sender) {
 210         if (sender == null || sender.isEmpty()) {
 211             return getMessageCachePath();
 212         }
 213
 214         return getMessageCachePath() + "/" + sender.replace("/", "_");
 215     }
 216
 217     private File getMessageCacheFile(String sender, long now, long timestamp) throws IOException {
 218         String cachePath = getMessageCachePath(sender);
 219         IOUtils.createPrivateDirectories(cachePath);
 220         return new File(cachePath + "/" + now + "_" + timestamp);
 221     }
 222
 223     public static Manager init(String username, String settingsPath, SignalServiceConfiguration serviceConfiguration, String userAgent) throws IOException {
 224         PathConfig pathConfig = PathConfig.createDefault(settingsPath);
 225
 226         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 227             IdentityKeyPair identityKey = KeyHelper.generateIdentityKeyPair();
 228             int registrationId = KeyHelper.generateRegistrationId(false);
 229
 230             ProfileKey profileKey = KeyUtils.createProfileKey();
 231             SignalAccount account = SignalAccount.create(pathConfig.getDataPath(), username, identityKey, registrationId, profileKey);
 232             account.save();
 233
 234             return new Manager(account, pathConfig, serviceConfiguration, userAgent);
 235         }
 236
 237         SignalAccount account = SignalAccount.load(pathConfig.getDataPath(), username);
 238
 239         Manager m = new Manager(account, pathConfig, serviceConfiguration, userAgent);
 240
 241         m.migrateLegacyConfigs();
 242
 243         return m;
 244     }
 245
 246     private void migrateLegacyConfigs() {
 247         // Copy group avatars that were previously stored in the attachments folder
 248         // to the new avatar folder
 249         if (JsonGroupStore.groupsWithLegacyAvatarId.size() > 0) {
 250             for (GroupInfo g : JsonGroupStore.groupsWithLegacyAvatarId) {
 251                 File avatarFile = getGroupAvatarFile(g.groupId);
 252                 File attachmentFile = getAttachmentFile(new SignalServiceAttachmentRemoteId(g.getAvatarId()));
 253                 if (!avatarFile.exists() && attachmentFile.exists()) {
 254                     try {
 255                         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
 256                         Files.copy(attachmentFile.toPath(), avatarFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 257                     } catch (Exception e) {
 258                         // Ignore
 259                     }
 260                 }
 261             }
 262             JsonGroupStore.groupsWithLegacyAvatarId.clear();
 263             account.save();
 264         }
 265         if (account.getProfileKey() == null) {
 266             // Old config file, creating new profile key
 267             account.setProfileKey(KeyUtils.createProfileKey());
 268             account.save();
 269         }
 270     }
 271
 272     public void checkAccountState() throws IOException {
 273         if (account.isRegistered()) {
 274             if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 275                 refreshPreKeys();
 276                 account.save();
 277             }
 278             if (account.getUuid() == null) {
 279                 account.setUuid(accountManager.getOwnUuid());
 280                 account.save();
 281             }
 282         }
 283     }
 284
 285     public boolean isRegistered() {
 286         return account.isRegistered();
 287     }
 288
 289     public void register(boolean voiceVerification) throws IOException {
 290         account.setPassword(KeyUtils.createPassword());
 291
 292         // Resetting UUID, because registering doesn't work otherwise
 293         account.setUuid(null);
 294         accountManager = createSignalServiceAccountManager();
 295
 296         if (voiceVerification) {
 297             accountManager.requestVoiceVerificationCode(Locale.getDefault(), Optional.absent(), Optional.absent());
 298         } else {
 299             accountManager.requestSmsVerificationCode(false, Optional.absent(), Optional.absent());
 300         }
 301
 302         account.setRegistered(false);
 303         account.save();
 304     }
 305
 306     public void updateAccountAttributes() throws IOException {
 307         accountManager.setAccountAttributes(account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, account.getRegistrationLockPin(), account.getRegistrationLock(), getSelfUnidentifiedAccessKey(), false, capabilities, discoverableByPhoneNumber);
 308     }
 309
 310     public void setProfile(String name, File avatar) throws IOException {
 311         try (final StreamDetails streamDetails = avatar == null ? null : Utils.createStreamDetailsFromFile(avatar)) {
 312             accountManager.setVersionedProfile(account.getUuid(), account.getProfileKey(), name, streamDetails);
 313         }
 314     }
 315
 316     public void unregister() throws IOException {
 317         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 318         // If this is the master device, other users can't send messages to this number anymore.
 319         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 320         accountManager.setGcmId(Optional.absent());
 321
 322         account.setRegistered(false);
 323         account.save();
 324     }
 325
 326     public List<DeviceInfo> getLinkedDevices() throws IOException {
 327         List<DeviceInfo> devices = accountManager.getDevices();
 328         account.setMultiDevice(devices.size() > 1);
 329         account.save();
 330         return devices;
 331     }
 332
 333     public void removeLinkedDevices(int deviceId) throws IOException {
 334         accountManager.removeDevice(deviceId);
 335         List<DeviceInfo> devices = accountManager.getDevices();
 336         account.setMultiDevice(devices.size() > 1);
 337         account.save();
 338     }
 339
 340     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 341         Utils.DeviceLinkInfo info = Utils.parseDeviceLinkUri(linkUri);
 342
 343         addDevice(info.deviceIdentifier, info.deviceKey);
 344     }
 345
 346     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 347         IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 348         String verificationCode = accountManager.getNewDeviceVerificationCode();
 349
 350         accountManager.addDevice(deviceIdentifier, deviceKey, identityKeyPair, Optional.of(account.getProfileKey().serialize()), verificationCode);
 351         account.setMultiDevice(true);
 352         account.save();
 353     }
 354
 355     private List<PreKeyRecord> generatePreKeys() {
 356         List<PreKeyRecord> records = new ArrayList<>(ServiceConfig.PREKEY_BATCH_SIZE);
 357
 358         final int offset = account.getPreKeyIdOffset();
 359         for (int i = 0; i < ServiceConfig.PREKEY_BATCH_SIZE; i++) {
 360             int preKeyId = (offset + i) % Medium.MAX_VALUE;
 361             ECKeyPair keyPair = Curve.generateKeyPair();
 362             PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);
 363
 364             records.add(record);
 365         }
 366
 367         account.addPreKeys(records);
 368         account.save();
 369
 370         return records;
 371     }
 372
 373     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 374         try {
 375             ECKeyPair keyPair = Curve.generateKeyPair();
 376             byte[] signature = Curve.calculateSignature(identityKeyPair.getPrivateKey(), keyPair.getPublicKey().serialize());
 377             SignedPreKeyRecord record = new SignedPreKeyRecord(account.getNextSignedPreKeyId(), System.currentTimeMillis(), keyPair, signature);
 378
 379             account.addSignedPreKey(record);
 380             account.save();
 381
 382             return record;
 383         } catch (InvalidKeyException e) {
 384             throw new AssertionError(e);
 385         }
 386     }
 387
 388     public void verifyAccount(String verificationCode, String pin) throws IOException {
 389         verificationCode = verificationCode.replace("-", "");
 390         account.setSignalingKey(KeyUtils.createSignalingKey());
 391         // TODO make unrestricted unidentified access configurable
 392         VerifyAccountResponse response = accountManager.verifyAccountWithCode(verificationCode, account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, pin, null, getSelfUnidentifiedAccessKey(), false, capabilities, discoverableByPhoneNumber);
 393
 394         UUID uuid = UuidUtil.parseOrNull(response.getUuid());
 395         // TODO response.isStorageCapable()
 396         //accountManager.setGcmId(Optional.of(GoogleCloudMessaging.getInstance(this).register(REGISTRATION_ID)));
 397         account.setRegistered(true);
 398         account.setUuid(uuid);
 399         account.setRegistrationLockPin(pin);
 400         account.getSignalProtocolStore().saveIdentity(account.getSelfAddress(), getIdentityKeyPair().getPublicKey(), TrustLevel.TRUSTED_VERIFIED);
 401
 402         refreshPreKeys();
 403         account.save();
 404     }
 405
 406     public void setRegistrationLockPin(Optional<String> pin) throws IOException {
 407         if (pin.isPresent()) {
 408             account.setRegistrationLockPin(pin.get());
 409             throw new RuntimeException("Not implemented anymore, will be replaced with KBS");
 410         } else {
 411             account.setRegistrationLockPin(null);
 412             accountManager.removeRegistrationLockV1();
 413         }
 414         account.save();
 415     }
 416
 417     void refreshPreKeys() throws IOException {
 418         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 419         final IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 420         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 421
 422         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 423     }
 424
 425     private SignalServiceMessageReceiver getMessageReceiver() {
 426         // TODO implement ZkGroup support
 427         final ClientZkProfileOperations clientZkProfileOperations = null;
 428         return new SignalServiceMessageReceiver(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(), account.getDeviceId(), account.getSignalingKey(), userAgent, null, timer, clientZkProfileOperations);
 429     }
 430
 431     private SignalServiceMessageSender getMessageSender() {
 432         // TODO implement ZkGroup support
 433         final ClientZkProfileOperations clientZkProfileOperations = null;
 434         final boolean attachmentsV3 = false;
 435         final ExecutorService executor = null;
 436         return new SignalServiceMessageSender(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(),
 437                 account.getDeviceId(), account.getSignalProtocolStore(), userAgent, account.isMultiDevice(), attachmentsV3, Optional.fromNullable(messagePipe), Optional.fromNullable(unidentifiedMessagePipe), Optional.absent(), clientZkProfileOperations, executor);
 438     }
 439
 440     private SignalServiceProfile getEncryptedRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess) throws IOException {
 441         SignalServiceMessagePipe pipe = unidentifiedMessagePipe != null && unidentifiedAccess.isPresent() ? unidentifiedMessagePipe
 442                 : messagePipe;
 443
 444         if (pipe != null) {
 445             try {
 446                 return pipe.getProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).get(10, TimeUnit.SECONDS).getProfile();
 447             } catch (IOException | InterruptedException | ExecutionException | TimeoutException ignored) {
 448             }
 449         }
 450
 451         SignalServiceMessageReceiver receiver = getMessageReceiver();
 452         try {
 453             return receiver.retrieveProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).get(10, TimeUnit.SECONDS).getProfile();
 454         } catch (InterruptedException | ExecutionException | TimeoutException e) {
 455             throw new IOException("Failed to retrieve profile", e);
 456         }
 457     }
 458
 459     private SignalProfile getRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess, ProfileKey profileKey) throws IOException {
 460         SignalProfileEntry profileEntry = account.getProfileStore().getProfile(address);
 461         long now = new Date().getTime();
 462         // Profiles are cache for 24h before retrieving them again
 463         if (profileEntry == null || profileEntry.getProfile() == null || now - profileEntry.getLastUpdateTimestamp() > 24 * 60 * 60 * 1000) {
 464             SignalProfile profile = retrieveRecipientProfile(address, unidentifiedAccess, profileKey);
 465             account.getProfileStore().updateProfile(address, profileKey, now, profile);
 466             return profile;
 467         }
 468         return profileEntry.getProfile();
 469     }
 470
 471     private SignalProfile retrieveRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess, ProfileKey profileKey) throws IOException {
 472         final SignalServiceProfile encryptedProfile = getEncryptedRecipientProfile(address, unidentifiedAccess);
 473
 474         File avatarFile = null;
 475         try {
 476             avatarFile = encryptedProfile.getAvatar() == null ? null : retrieveProfileAvatar(address, encryptedProfile.getAvatar(), profileKey);
 477         } catch (Throwable e) {
 478             System.err.println("Failed to retrieve profile avatar, ignoring: " + e.getMessage());
 479         }
 480
 481         ProfileCipher profileCipher = new ProfileCipher(profileKey);
 482         try {
 483             return new SignalProfile(
 484                     encryptedProfile.getIdentityKey(),
 485                     encryptedProfile.getName() == null ? null : new String(profileCipher.decryptName(Base64.decode(encryptedProfile.getName()))),
 486                     avatarFile,
 487                     encryptedProfile.getUnidentifiedAccess() == null || !profileCipher.verifyUnidentifiedAccess(Base64.decode(encryptedProfile.getUnidentifiedAccess())) ? null : encryptedProfile.getUnidentifiedAccess(),
 488                     encryptedProfile.isUnrestrictedUnidentifiedAccess(),
 489                     encryptedProfile.getCapabilities());
 490         } catch (InvalidCiphertextException e) {
 491             return null;
 492         }
 493     }
 494
 495     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(byte[] groupId) throws IOException {
 496         File file = getGroupAvatarFile(groupId);
 497         if (!file.exists()) {
 498             return Optional.absent();
 499         }
 500
 501         return Optional.of(Utils.createAttachment(file));
 502     }
 503
 504     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(String number) throws IOException {
 505         File file = getContactAvatarFile(number);
 506         if (!file.exists()) {
 507             return Optional.absent();
 508         }
 509
 510         return Optional.of(Utils.createAttachment(file));
 511     }
 512
 513     private GroupInfo getGroupForSending(byte[] groupId) throws GroupNotFoundException, NotAGroupMemberException {
 514         GroupInfo g = account.getGroupStore().getGroup(groupId);
 515         if (g == null) {
 516             throw new GroupNotFoundException(groupId);
 517         }
 518         if (!g.isMember(account.getSelfAddress())) {
 519             throw new NotAGroupMemberException(groupId, g.name);
 520         }
 521         return g;
 522     }
 523
 524     public List<GroupInfo> getGroups() {
 525         return account.getGroupStore().getGroups();
 526     }
 527
 528     public long sendGroupMessage(String messageText, List<String> attachments,
 529                                  byte[] groupId)
 530             throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 531         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 532         if (attachments != null) {
 533             messageBuilder.withAttachments(Utils.getSignalServiceAttachments(attachments));
 534         }
 535         if (groupId != null) {
 536             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 537                     .withId(groupId)
 538                     .build();
 539             messageBuilder.asGroupMessage(group);
 540         }
 541
 542         final GroupInfo g = getGroupForSending(groupId);
 543
 544         messageBuilder.withExpiration(g.messageExpirationTime);
 545
 546         return sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 547     }
 548
 549     public void sendGroupMessageReaction(String emoji, boolean remove, String targetAuthor,
 550                                          long targetSentTimestamp, byte[] groupId)
 551             throws IOException, EncapsulatedExceptions, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 552         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, canonicalizeAndResolveSignalServiceAddress(targetAuthor), targetSentTimestamp);
 553         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 554                 .withReaction(reaction);
 555         if (groupId != null) {
 556             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 557                     .withId(groupId)
 558                     .build();
 559             messageBuilder.asGroupMessage(group);
 560         }
 561         final GroupInfo g = getGroupForSending(groupId);
 562         sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 563     }
 564
 565     public void sendQuitGroupMessage(byte[] groupId) throws GroupNotFoundException, IOException, EncapsulatedExceptions, NotAGroupMemberException {
 566         SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 567                 .withId(groupId)
 568                 .build();
 569
 570         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 571                 .asGroupMessage(group);
 572
 573         final GroupInfo g = getGroupForSending(groupId);
 574         g.removeMember(account.getSelfAddress());
 575         account.getGroupStore().updateGroup(g);
 576
 577         sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 578     }
 579
 580     private byte[] sendUpdateGroupMessage(byte[] groupId, String name, Collection<SignalServiceAddress> members, String avatarFile) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 581         GroupInfo g;
 582         if (groupId == null) {
 583             // Create new group
 584             g = new GroupInfo(KeyUtils.createGroupId());
 585             g.addMembers(Collections.singleton(account.getSelfAddress()));
 586         } else {
 587             g = getGroupForSending(groupId);
 588         }
 589
 590         if (name != null) {
 591             g.name = name;
 592         }
 593
 594         if (members != null) {
 595             final Set<String> newE164Members = new HashSet<>();
 596             for (SignalServiceAddress member : members) {
 597                 if (g.isMember(member) || !member.getNumber().isPresent()) {
 598                     continue;
 599                 }
 600                 newE164Members.add(member.getNumber().get());
 601             }
 602
 603             final List<ContactTokenDetails> contacts = accountManager.getContacts(newE164Members);
 604             if (contacts.size() != newE164Members.size()) {
 605                 // Some of the new members are not registered on Signal
 606                 for (ContactTokenDetails contact : contacts) {
 607                     newE164Members.remove(contact.getNumber());
 608                 }
 609                 throw new IOException("Failed to add members " + Util.join(", ", newE164Members) + " to group: Not registered on Signal");
 610             }
 611
 612             g.addMembers(members);
 613         }
 614
 615         if (avatarFile != null) {
 616             IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
 617             File aFile = getGroupAvatarFile(g.groupId);
 618             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 619         }
 620
 621         account.getGroupStore().updateGroup(g);
 622
 623         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 624
 625         sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 626         return g.groupId;
 627     }
 628
 629     void sendUpdateGroupMessage(byte[] groupId, SignalServiceAddress recipient) throws IOException, EncapsulatedExceptions, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 630         if (groupId == null) {
 631             return;
 632         }
 633         GroupInfo g = getGroupForSending(groupId);
 634
 635         if (!g.isMember(recipient)) {
 636             return;
 637         }
 638
 639         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 640
 641         // Send group message only to the recipient who requested it
 642         sendMessageLegacy(messageBuilder, Collections.singleton(recipient));
 643     }
 644
 645     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfo g) throws AttachmentInvalidException {
 646         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 647                 .withId(g.groupId)
 648                 .withName(g.name)
 649                 .withMembers(new ArrayList<>(g.getMembers()));
 650
 651         File aFile = getGroupAvatarFile(g.groupId);
 652         if (aFile.exists()) {
 653             try {
 654                 group.withAvatar(Utils.createAttachment(aFile));
 655             } catch (IOException e) {
 656                 throw new AttachmentInvalidException(aFile.toString(), e);
 657             }
 658         }
 659
 660         return SignalServiceDataMessage.newBuilder()
 661                 .asGroupMessage(group.build())
 662                 .withExpiration(g.messageExpirationTime);
 663     }
 664
 665     void sendGroupInfoRequest(byte[] groupId, SignalServiceAddress recipient) throws IOException, EncapsulatedExceptions {
 666         if (groupId == null) {
 667             return;
 668         }
 669
 670         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 671                 .withId(groupId);
 672
 673         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 674                 .asGroupMessage(group.build());
 675
 676         // Send group info request message to the recipient who sent us a message with this groupId
 677         sendMessageLegacy(messageBuilder, Collections.singleton(recipient));
 678     }
 679
 680     void sendReceipt(SignalServiceAddress remoteAddress, long messageId) throws IOException, UntrustedIdentityException {
 681         SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
 682                 Collections.singletonList(messageId),
 683                 System.currentTimeMillis());
 684
 685         getMessageSender().sendReceipt(remoteAddress, getAccessFor(remoteAddress), receiptMessage);
 686     }
 687
 688     public long sendMessage(String messageText, List<String> attachments,
 689                             List<String> recipients)
 690             throws IOException, EncapsulatedExceptions, AttachmentInvalidException, InvalidNumberException {
 691         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 692         if (attachments != null) {
 693             List<SignalServiceAttachment> attachmentStreams = Utils.getSignalServiceAttachments(attachments);
 694
 695             // Upload attachments here, so we only upload once even for multiple recipients
 696             SignalServiceMessageSender messageSender = getMessageSender();
 697             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 698             for (SignalServiceAttachment attachment : attachmentStreams) {
 699                 if (attachment.isStream()) {
 700                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 701                 } else if (attachment.isPointer()) {
 702                     attachmentPointers.add(attachment.asPointer());
 703                 }
 704             }
 705
 706             messageBuilder.withAttachments(attachmentPointers);
 707         }
 708         return sendMessageLegacy(messageBuilder, getSignalServiceAddresses(recipients));
 709     }
 710
 711     public void sendMessageReaction(String emoji, boolean remove, String targetAuthor,
 712                                     long targetSentTimestamp, List<String> recipients)
 713             throws IOException, EncapsulatedExceptions, InvalidNumberException {
 714         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, canonicalizeAndResolveSignalServiceAddress(targetAuthor), targetSentTimestamp);
 715         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 716                 .withReaction(reaction);
 717         sendMessageLegacy(messageBuilder, getSignalServiceAddresses(recipients));
 718     }
 719
 720     public void sendEndSessionMessage(List<String> recipients) throws IOException, EncapsulatedExceptions, InvalidNumberException {
 721         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 722                 .asEndSessionMessage();
 723
 724         final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
 725         try {
 726             sendMessageLegacy(messageBuilder, signalServiceAddresses);
 727         } catch (Exception e) {
 728             for (SignalServiceAddress address : signalServiceAddresses) {
 729                 handleEndSession(address);
 730             }
 731             account.save();
 732             throw e;
 733         }
 734     }
 735
 736     public String getContactName(String number) throws InvalidNumberException {
 737         ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));
 738         if (contact == null) {
 739             return "";
 740         } else {
 741             return contact.name;
 742         }
 743     }
 744
 745     public void setContactName(String number, String name) throws InvalidNumberException {
 746         final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 747         ContactInfo contact = account.getContactStore().getContact(address);
 748         if (contact == null) {
 749             contact = new ContactInfo(address);
 750         }
 751         contact.name = name;
 752         account.getContactStore().updateContact(contact);
 753         account.save();
 754     }
 755
 756     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
 757         setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
 758     }
 759
 760     private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
 761         ContactInfo contact = account.getContactStore().getContact(address);
 762         if (contact == null) {
 763             contact = new ContactInfo(address);
 764         }
 765         contact.blocked = blocked;
 766         account.getContactStore().updateContact(contact);
 767         account.save();
 768     }
 769
 770     public void setGroupBlocked(final byte[] groupId, final boolean blocked) throws GroupNotFoundException {
 771         GroupInfo group = getGroup(groupId);
 772         if (group == null) {
 773             throw new GroupNotFoundException(groupId);
 774         }
 775
 776         group.blocked = blocked;
 777         account.getGroupStore().updateGroup(group);
 778         account.save();
 779     }
 780
 781     public byte[] updateGroup(byte[] groupId, String name, List<String> members, String avatar) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 782         if (groupId.length == 0) {
 783             groupId = null;
 784         }
 785         if (name.isEmpty()) {
 786             name = null;
 787         }
 788         if (members.isEmpty()) {
 789             members = null;
 790         }
 791         if (avatar.isEmpty()) {
 792             avatar = null;
 793         }
 794         return sendUpdateGroupMessage(groupId, name, members == null ? null : getSignalServiceAddresses(members), avatar);
 795     }
 796
 797     /**
 798      * Change the expiration timer for a contact
 799      */
 800     public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) throws IOException {
 801         ContactInfo contact = account.getContactStore().getContact(address);
 802         contact.messageExpirationTime = messageExpirationTimer;
 803         account.getContactStore().updateContact(contact);
 804         sendExpirationTimerUpdate(address);
 805         account.save();
 806     }
 807
 808     private void sendExpirationTimerUpdate(SignalServiceAddress address) throws IOException {
 809         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 810                 .asExpirationUpdate();
 811         sendMessage(messageBuilder, Collections.singleton(address));
 812     }
 813
 814     /**
 815      * Change the expiration timer for a contact
 816      */
 817     public void setExpirationTimer(String number, int messageExpirationTimer) throws IOException, InvalidNumberException {
 818         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 819         setExpirationTimer(address, messageExpirationTimer);
 820     }
 821
 822     /**
 823      * Change the expiration timer for a group
 824      */
 825     public void setExpirationTimer(byte[] groupId, int messageExpirationTimer) {
 826         GroupInfo g = account.getGroupStore().getGroup(groupId);
 827         g.messageExpirationTime = messageExpirationTimer;
 828         account.getGroupStore().updateGroup(g);
 829     }
 830
 831     /**
 832      * Upload the sticker pack from path.
 833      *
 834      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
 835      * @return if successful, returns the URL to install the sticker pack in the signal app
 836      */
 837     public String uploadStickerPack(String path) throws IOException, StickerPackInvalidException {
 838         SignalServiceStickerManifestUpload manifest = getSignalServiceStickerManifestUpload(path);
 839
 840         SignalServiceMessageSender messageSender = getMessageSender();
 841
 842         byte[] packKey = KeyUtils.createStickerUploadKey();
 843         String packId = messageSender.uploadStickerManifest(manifest, packKey);
 844
 845         try {
 846             return new URI("https", "signal.art", "/addstickers/", "pack_id=" + URLEncoder.encode(packId, "utf-8") + "&pack_key=" + URLEncoder.encode(Hex.toStringCondensed(packKey), "utf-8"))
 847                     .toString();
 848         } catch (URISyntaxException e) {
 849             throw new AssertionError(e);
 850         }
 851     }
 852
 853     private SignalServiceStickerManifestUpload getSignalServiceStickerManifestUpload(final String path) throws IOException, StickerPackInvalidException {
 854         ZipFile zip = null;
 855         String rootPath = null;
 856
 857         final File file = new File(path);
 858         if (file.getName().endsWith(".zip")) {
 859             zip = new ZipFile(file);
 860         } else if (file.getName().equals("manifest.json")) {
 861             rootPath = file.getParent();
 862         } else {
 863             throw new StickerPackInvalidException("Could not find manifest.json");
 864         }
 865
 866         JsonStickerPack pack = parseStickerPack(rootPath, zip);
 867
 868         if (pack.stickers == null) {
 869             throw new StickerPackInvalidException("Must set a 'stickers' field.");
 870         }
 871
 872         if (pack.stickers.isEmpty()) {
 873             throw new StickerPackInvalidException("Must include stickers.");
 874         }
 875
 876         List<StickerInfo> stickers = new ArrayList<>(pack.stickers.size());
 877         for (JsonStickerPack.JsonSticker sticker : pack.stickers) {
 878             if (sticker.file == null) {
 879                 throw new StickerPackInvalidException("Must set a 'file' field on each sticker.");
 880             }
 881
 882             Pair<InputStream, Long> data;
 883             try {
 884                 data = getInputStreamAndLength(rootPath, zip, sticker.file);
 885             } catch (IOException ignored) {
 886                 throw new StickerPackInvalidException("Could not find find " + sticker.file);
 887             }
 888
 889             String contentType = Utils.getFileMimeType(new File(sticker.file), null);
 890             StickerInfo stickerInfo = new StickerInfo(data.first(), data.second(), Optional.fromNullable(sticker.emoji).or(""), contentType);
 891             stickers.add(stickerInfo);
 892         }
 893
 894         StickerInfo cover = null;
 895         if (pack.cover != null) {
 896             if (pack.cover.file == null) {
 897                 throw new StickerPackInvalidException("Must set a 'file' field on the cover.");
 898             }
 899
 900             Pair<InputStream, Long> data;
 901             try {
 902                 data = getInputStreamAndLength(rootPath, zip, pack.cover.file);
 903             } catch (IOException ignored) {
 904                 throw new StickerPackInvalidException("Could not find find " + pack.cover.file);
 905             }
 906
 907             String contentType = Utils.getFileMimeType(new File(pack.cover.file), null);
 908             cover = new StickerInfo(data.first(), data.second(), Optional.fromNullable(pack.cover.emoji).or(""), contentType);
 909         }
 910
 911         return new SignalServiceStickerManifestUpload(
 912                 pack.title,
 913                 pack.author,
 914                 cover,
 915                 stickers);
 916     }
 917
 918     private static JsonStickerPack parseStickerPack(String rootPath, ZipFile zip) throws IOException {
 919         InputStream inputStream;
 920         if (zip != null) {
 921             inputStream = zip.getInputStream(zip.getEntry("manifest.json"));
 922         } else {
 923             inputStream = new FileInputStream((new File(rootPath, "manifest.json")));
 924         }
 925         return new ObjectMapper().readValue(inputStream, JsonStickerPack.class);
 926     }
 927
 928     private static Pair<InputStream, Long> getInputStreamAndLength(final String rootPath, final ZipFile zip, final String subfile) throws IOException {
 929         if (zip != null) {
 930             final ZipEntry entry = zip.getEntry(subfile);
 931             return new Pair<>(zip.getInputStream(entry), entry.getSize());
 932         } else {
 933             final File file = new File(rootPath, subfile);
 934             return new Pair<>(new FileInputStream(file), file.length());
 935         }
 936     }
 937
 938     void requestSyncGroups() throws IOException {
 939         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS).build();
 940         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 941         try {
 942             sendSyncMessage(message);
 943         } catch (UntrustedIdentityException e) {
 944             e.printStackTrace();
 945         }
 946     }
 947
 948     void requestSyncContacts() throws IOException {
 949         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS).build();
 950         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 951         try {
 952             sendSyncMessage(message);
 953         } catch (UntrustedIdentityException e) {
 954             e.printStackTrace();
 955         }
 956     }
 957
 958     void requestSyncBlocked() throws IOException {
 959         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED).build();
 960         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 961         try {
 962             sendSyncMessage(message);
 963         } catch (UntrustedIdentityException e) {
 964             e.printStackTrace();
 965         }
 966     }
 967
 968     void requestSyncConfiguration() throws IOException {
 969         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION).build();
 970         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 971         try {
 972             sendSyncMessage(message);
 973         } catch (UntrustedIdentityException e) {
 974             e.printStackTrace();
 975         }
 976     }
 977
 978     private byte[] getSenderCertificate() {
 979         // TODO support UUID capable sender certificates
 980         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
 981         byte[] certificate;
 982         try {
 983             certificate = accountManager.getSenderCertificate();
 984         } catch (IOException e) {
 985             System.err.println("Failed to get sender certificate: " + e);
 986             return null;
 987         }
 988         // TODO cache for a day
 989         return certificate;
 990     }
 991
 992     private byte[] getSelfUnidentifiedAccessKey() {
 993         return UnidentifiedAccess.deriveAccessKeyFrom(account.getProfileKey());
 994     }
 995
 996     private byte[] getTargetUnidentifiedAccessKey(SignalServiceAddress recipient) {
 997         ContactInfo contact = account.getContactStore().getContact(recipient);
 998         if (contact == null || contact.profileKey == null) {
 999             return null;
1000         }
1001         ProfileKey theirProfileKey;
1002         try {
1003             theirProfileKey = new ProfileKey(Base64.decode(contact.profileKey));
1004         } catch (InvalidInputException | IOException e) {
1005             throw new AssertionError(e);
1006         }
1007         SignalProfile targetProfile;
1008         try {
1009             targetProfile = getRecipientProfile(recipient, Optional.absent(), theirProfileKey);
1010         } catch (IOException e) {
1011             System.err.println("Failed to get recipient profile: " + e);
1012             return null;
1013         }
1014
1015         if (targetProfile == null || targetProfile.getUnidentifiedAccess() == null) {
1016             return null;
1017         }
1018
1019         if (targetProfile.isUnrestrictedUnidentifiedAccess()) {
1020             return KeyUtils.createUnrestrictedUnidentifiedAccess();
1021         }
1022
1023         return UnidentifiedAccess.deriveAccessKeyFrom(theirProfileKey);
1024     }
1025
1026     private Optional<UnidentifiedAccessPair> getAccessForSync() {
1027         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
1028         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
1029
1030         if (selfUnidentifiedAccessKey == null || selfUnidentifiedAccessCertificate == null) {
1031             return Optional.absent();
1032         }
1033
1034         try {
1035             return Optional.of(new UnidentifiedAccessPair(
1036                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate),
1037                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate)
1038             ));
1039         } catch (InvalidCertificateException e) {
1040             return Optional.absent();
1041         }
1042     }
1043
1044     private List<Optional<UnidentifiedAccessPair>> getAccessFor(Collection<SignalServiceAddress> recipients) {
1045         List<Optional<UnidentifiedAccessPair>> result = new ArrayList<>(recipients.size());
1046         for (SignalServiceAddress recipient : recipients) {
1047             result.add(getAccessFor(recipient));
1048         }
1049         return result;
1050     }
1051
1052     private Optional<UnidentifiedAccessPair> getAccessFor(SignalServiceAddress recipient) {
1053         byte[] recipientUnidentifiedAccessKey = getTargetUnidentifiedAccessKey(recipient);
1054         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
1055         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
1056
1057         if (recipientUnidentifiedAccessKey == null || selfUnidentifiedAccessKey == null || selfUnidentifiedAccessCertificate == null) {
1058             return Optional.absent();
1059         }
1060
1061         try {
1062             return Optional.of(new UnidentifiedAccessPair(
1063                     new UnidentifiedAccess(recipientUnidentifiedAccessKey, selfUnidentifiedAccessCertificate),
1064                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate)
1065             ));
1066         } catch (InvalidCertificateException e) {
1067             return Optional.absent();
1068         }
1069     }
1070
1071     private Optional<UnidentifiedAccess> getUnidentifiedAccess(SignalServiceAddress recipient) {
1072         Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
1073
1074         if (unidentifiedAccess.isPresent()) {
1075             return unidentifiedAccess.get().getTargetUnidentifiedAccess();
1076         }
1077
1078         return Optional.absent();
1079     }
1080
1081     private void sendSyncMessage(SignalServiceSyncMessage message)
1082             throws IOException, UntrustedIdentityException {
1083         SignalServiceMessageSender messageSender = getMessageSender();
1084         try {
1085             messageSender.sendMessage(message, getAccessForSync());
1086         } catch (UntrustedIdentityException e) {
1087             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1088             throw e;
1089         }
1090     }
1091
1092     /**
1093      * This method throws an EncapsulatedExceptions exception instead of returning a list of SendMessageResult.
1094      */
1095     private long sendMessageLegacy(SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients)
1096             throws EncapsulatedExceptions, IOException {
1097         final long timestamp = System.currentTimeMillis();
1098         messageBuilder.withTimestamp(timestamp);
1099         List<SendMessageResult> results = sendMessage(messageBuilder, recipients);
1100
1101         List<UntrustedIdentityException> untrustedIdentities = new LinkedList<>();
1102         List<UnregisteredUserException> unregisteredUsers = new LinkedList<>();
1103         List<NetworkFailureException> networkExceptions = new LinkedList<>();
1104
1105         for (SendMessageResult result : results) {
1106             if (result.isUnregisteredFailure()) {
1107                 unregisteredUsers.add(new UnregisteredUserException(result.getAddress().getLegacyIdentifier(), null));
1108             } else if (result.isNetworkFailure()) {
1109                 networkExceptions.add(new NetworkFailureException(result.getAddress().getLegacyIdentifier(), null));
1110             } else if (result.getIdentityFailure() != null) {
1111                 untrustedIdentities.add(new UntrustedIdentityException("Untrusted", result.getAddress().getLegacyIdentifier(), result.getIdentityFailure().getIdentityKey()));
1112             }
1113         }
1114         if (!untrustedIdentities.isEmpty() || !unregisteredUsers.isEmpty() || !networkExceptions.isEmpty()) {
1115             throw new EncapsulatedExceptions(untrustedIdentities, unregisteredUsers, networkExceptions);
1116         }
1117         return timestamp;
1118     }
1119
1120     private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1121         final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
1122
1123         for (String number : numbers) {
1124             signalServiceAddresses.add(canonicalizeAndResolveSignalServiceAddress(number));
1125         }
1126         return signalServiceAddresses;
1127     }
1128
1129     private List<SendMessageResult> sendMessage(SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients)
1130             throws IOException {
1131         if (messagePipe == null) {
1132             messagePipe = getMessageReceiver().createMessagePipe();
1133         }
1134         if (unidentifiedMessagePipe == null) {
1135             unidentifiedMessagePipe = getMessageReceiver().createUnidentifiedMessagePipe();
1136         }
1137         SignalServiceDataMessage message = null;
1138         try {
1139             message = messageBuilder.build();
1140             if (message.getGroupContext().isPresent()) {
1141                 try {
1142                     SignalServiceMessageSender messageSender = getMessageSender();
1143                     final boolean isRecipientUpdate = false;
1144                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients), getAccessFor(recipients), isRecipientUpdate, message);
1145                     for (SendMessageResult r : result) {
1146                         if (r.getIdentityFailure() != null) {
1147                             account.getSignalProtocolStore().saveIdentity(r.getAddress(), r.getIdentityFailure().getIdentityKey(), TrustLevel.UNTRUSTED);
1148                         }
1149                     }
1150                     return result;
1151                 } catch (UntrustedIdentityException e) {
1152                     account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1153                     return Collections.emptyList();
1154                 }
1155             } else {
1156                 // Send to all individually, so sync messages are sent correctly
1157                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1158                 for (SignalServiceAddress address : recipients) {
1159                     ContactInfo contact = account.getContactStore().getContact(address);
1160                     if (contact != null) {
1161                         messageBuilder.withExpiration(contact.messageExpirationTime);
1162                         messageBuilder.withProfileKey(account.getProfileKey().serialize());
1163                     } else {
1164                         messageBuilder.withExpiration(0);
1165                         messageBuilder.withProfileKey(null);
1166                     }
1167                     message = messageBuilder.build();
1168                     if (address.matches(account.getSelfAddress())) {
1169                         results.add(sendSelfMessage(message));
1170                     } else {
1171                         results.add(sendMessage(address, message));
1172                     }
1173                 }
1174                 return results;
1175             }
1176         } finally {
1177             if (message != null && message.isEndSession()) {
1178                 for (SignalServiceAddress recipient : recipients) {
1179                     handleEndSession(recipient);
1180                 }
1181             }
1182             account.save();
1183         }
1184     }
1185
1186     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1187         SignalServiceMessageSender messageSender = getMessageSender();
1188
1189         SignalServiceAddress recipient = account.getSelfAddress();
1190
1191         final Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
1192         SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1193                 message.getTimestamp(),
1194                 message,
1195                 message.getExpiresInSeconds(),
1196                 Collections.singletonMap(recipient, unidentifiedAccess.isPresent()),
1197                 false);
1198         SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1199
1200         try {
1201             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1202             return SendMessageResult.success(recipient, unidentifiedAccess.isPresent(), false);
1203         } catch (UntrustedIdentityException e) {
1204             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1205             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1206         }
1207     }
1208
1209     private SendMessageResult sendMessage(SignalServiceAddress address, SignalServiceDataMessage message) throws IOException {
1210         SignalServiceMessageSender messageSender = getMessageSender();
1211
1212         try {
1213             return messageSender.sendMessage(address, getAccessFor(address), message);
1214         } catch (UntrustedIdentityException e) {
1215             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1216             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1217         }
1218     }
1219
1220     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1221         SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(), account.getSignalProtocolStore(), Utils.getCertificateValidator());
1222         try {
1223             return cipher.decrypt(envelope);
1224         } catch (ProtocolUntrustedIdentityException e) {
1225             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1226                 org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e.getCause();
1227                 account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(identityException.getName()), identityException.getUntrustedIdentity(), TrustLevel.UNTRUSTED);
1228                 throw identityException;
1229             }
1230             throw new AssertionError(e);
1231         }
1232     }
1233
1234     private void handleEndSession(SignalServiceAddress source) {
1235         account.getSignalProtocolStore().deleteAllSessions(source);
1236     }
1237
1238     private List<HandleAction> handleSignalServiceDataMessage(SignalServiceDataMessage message, boolean isSync, SignalServiceAddress source, SignalServiceAddress destination, boolean ignoreAttachments) {
1239         List<HandleAction> actions = new ArrayList<>();
1240         if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1241             SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1242             GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
1243             switch (groupInfo.getType()) {
1244                 case UPDATE:
1245                     if (group == null) {
1246                         group = new GroupInfo(groupInfo.getGroupId());
1247                     }
1248
1249                     if (groupInfo.getAvatar().isPresent()) {
1250                         SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1251                         if (avatar.isPointer()) {
1252                             try {
1253                                 retrieveGroupAvatarAttachment(avatar.asPointer(), group.groupId);
1254                             } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1255                                 System.err.println("Failed to retrieve group avatar (" + avatar.asPointer().getRemoteId() + "): " + e.getMessage());
1256                             }
1257                         }
1258                     }
1259
1260                     if (groupInfo.getName().isPresent()) {
1261                         group.name = groupInfo.getName().get();
1262                     }
1263
1264                     if (groupInfo.getMembers().isPresent()) {
1265                         group.addMembers(groupInfo.getMembers().get()
1266                                 .stream()
1267                                 .map(this::resolveSignalServiceAddress)
1268                                 .collect(Collectors.toSet()));
1269                     }
1270
1271                     account.getGroupStore().updateGroup(group);
1272                     break;
1273                 case DELIVER:
1274                     if (group == null && !isSync) {
1275                         actions.add(new SendGroupInfoRequestAction(source, groupInfo.getGroupId()));
1276                     }
1277                     break;
1278                 case QUIT:
1279                     if (group != null) {
1280                         group.removeMember(source);
1281                         account.getGroupStore().updateGroup(group);
1282                     }
1283                     break;
1284                 case REQUEST_INFO:
1285                     if (group != null && !isSync) {
1286                         actions.add(new SendGroupUpdateAction(source, group.groupId));
1287                     }
1288                     break;
1289             }
1290         }
1291         final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;
1292         if (message.isEndSession()) {
1293             handleEndSession(conversationPartnerAddress);
1294         }
1295         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1296             if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1297                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1298                 GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
1299                 if (group == null) {
1300                     group = new GroupInfo(groupInfo.getGroupId());
1301                 }
1302                 if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1303                     group.messageExpirationTime = message.getExpiresInSeconds();
1304                     account.getGroupStore().updateGroup(group);
1305                 }
1306             } else {
1307                 ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
1308                 if (contact == null) {
1309                     contact = new ContactInfo(conversationPartnerAddress);
1310                 }
1311                 if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
1312                     contact.messageExpirationTime = message.getExpiresInSeconds();
1313                     account.getContactStore().updateContact(contact);
1314                 }
1315             }
1316         }
1317         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1318             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1319                 if (attachment.isPointer()) {
1320                     try {
1321                         retrieveAttachment(attachment.asPointer());
1322                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1323                         System.err.println("Failed to retrieve attachment (" + attachment.asPointer().getRemoteId() + "): " + e.getMessage());
1324                     }
1325                 }
1326             }
1327         }
1328         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1329             if (source.matches(account.getSelfAddress())) {
1330                 try {
1331                     this.account.setProfileKey(new ProfileKey(message.getProfileKey().get()));
1332                 } catch (InvalidInputException ignored) {
1333                 }
1334                 ContactInfo contact = account.getContactStore().getContact(source);
1335                 if (contact != null) {
1336                     contact.profileKey = Base64.encodeBytes(message.getProfileKey().get());
1337                     account.getContactStore().updateContact(contact);
1338                 }
1339             } else {
1340                 ContactInfo contact = account.getContactStore().getContact(source);
1341                 if (contact == null) {
1342                     contact = new ContactInfo(source);
1343                 }
1344                 contact.profileKey = Base64.encodeBytes(message.getProfileKey().get());
1345                 account.getContactStore().updateContact(contact);
1346             }
1347         }
1348         if (message.getPreviews().isPresent()) {
1349             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1350             for (SignalServiceDataMessage.Preview preview : previews) {
1351                 if (preview.getImage().isPresent() && preview.getImage().get().isPointer()) {
1352                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
1353                     try {
1354                         retrieveAttachment(attachment);
1355                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1356                         System.err.println("Failed to retrieve attachment (" + attachment.getRemoteId() + "): " + e.getMessage());
1357                     }
1358                 }
1359             }
1360         }
1361         return actions;
1362     }
1363
1364     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1365         final File cachePath = new File(getMessageCachePath());
1366         if (!cachePath.exists()) {
1367             return;
1368         }
1369         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
1370             if (!dir.isDirectory()) {
1371                 retryFailedReceivedMessage(handler, ignoreAttachments, dir);
1372                 continue;
1373             }
1374
1375             for (final File fileEntry : Objects.requireNonNull(dir.listFiles())) {
1376                 if (!fileEntry.isFile()) {
1377                     continue;
1378                 }
1379                 retryFailedReceivedMessage(handler, ignoreAttachments, fileEntry);
1380             }
1381             // Try to delete directory if empty
1382             dir.delete();
1383         }
1384     }
1385
1386     private void retryFailedReceivedMessage(final ReceiveMessageHandler handler, final boolean ignoreAttachments, final File fileEntry) {
1387         SignalServiceEnvelope envelope;
1388         try {
1389             envelope = Utils.loadEnvelope(fileEntry);
1390             if (envelope == null) {
1391                 return;
1392             }
1393         } catch (IOException e) {
1394             e.printStackTrace();
1395             return;
1396         }
1397         SignalServiceContent content = null;
1398         if (!envelope.isReceipt()) {
1399             try {
1400                 content = decryptMessage(envelope);
1401             } catch (Exception e) {
1402                 return;
1403             }
1404             List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1405             for (HandleAction action : actions) {
1406                 try {
1407                     action.execute(this);
1408                 } catch (Throwable e) {
1409                     e.printStackTrace();
1410                 }
1411             }
1412         }
1413         account.save();
1414         handler.handleMessage(envelope, content, null);
1415         try {
1416             Files.delete(fileEntry.toPath());
1417         } catch (IOException e) {
1418             System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1419         }
1420     }
1421
1422     public void receiveMessages(long timeout, TimeUnit unit, boolean returnOnTimeout, boolean ignoreAttachments, ReceiveMessageHandler handler) throws IOException {
1423         retryFailedReceivedMessages(handler, ignoreAttachments);
1424         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1425
1426         Set<HandleAction> queuedActions = null;
1427
1428         if (messagePipe == null) {
1429             messagePipe = messageReceiver.createMessagePipe();
1430         }
1431
1432         boolean hasCaughtUpWithOldMessages = false;
1433
1434         while (true) {
1435             SignalServiceEnvelope envelope;
1436             SignalServiceContent content = null;
1437             Exception exception = null;
1438             final long now = new Date().getTime();
1439             try {
1440                 Optional<SignalServiceEnvelope> result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1441                     // store message on disk, before acknowledging receipt to the server
1442                     try {
1443                         String source = envelope1.getSourceE164().isPresent() ? envelope1.getSourceE164().get() : "";
1444                         File cacheFile = getMessageCacheFile(source, now, envelope1.getTimestamp());
1445                         Utils.storeEnvelope(envelope1, cacheFile);
1446                     } catch (IOException e) {
1447                         System.err.println("Failed to store encrypted message in disk cache, ignoring: " + e.getMessage());
1448                     }
1449                 });
1450                 if (result.isPresent()) {
1451                     envelope = result.get();
1452                 } else {
1453                     // Received indicator that server queue is empty
1454                     hasCaughtUpWithOldMessages = true;
1455
1456                     if (queuedActions != null) {
1457                         for (HandleAction action : queuedActions) {
1458                             try {
1459                                 action.execute(this);
1460                             } catch (Throwable e) {
1461                                 e.printStackTrace();
1462                             }
1463                         }
1464                         queuedActions.clear();
1465                         queuedActions = null;
1466                     }
1467
1468                     // Continue to wait another timeout for new messages
1469                     continue;
1470                 }
1471             } catch (TimeoutException e) {
1472                 if (returnOnTimeout)
1473                     return;
1474                 continue;
1475             } catch (InvalidVersionException e) {
1476                 System.err.println("Ignoring error: " + e.getMessage());
1477                 continue;
1478             }
1479             if (envelope.hasSource()) {
1480                 // Store uuid if we don't have it already
1481                 SignalServiceAddress source = envelope.getSourceAddress();
1482                 resolveSignalServiceAddress(source);
1483             }
1484             if (!envelope.isReceipt()) {
1485                 try {
1486                     content = decryptMessage(envelope);
1487                 } catch (Exception e) {
1488                     exception = e;
1489                 }
1490                 List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1491                 if (hasCaughtUpWithOldMessages) {
1492                     for (HandleAction action : actions) {
1493                         try {
1494                             action.execute(this);
1495                         } catch (Throwable e) {
1496                             e.printStackTrace();
1497                         }
1498                     }
1499                 } else {
1500                     if (queuedActions == null) {
1501                         queuedActions = new HashSet<>();
1502                     }
1503                     queuedActions.addAll(actions);
1504                 }
1505             }
1506             account.save();
1507             if (!isMessageBlocked(envelope, content)) {
1508                 handler.handleMessage(envelope, content, exception);
1509             }
1510             if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
1511                 File cacheFile = null;
1512                 try {
1513                     cacheFile = getMessageCacheFile(envelope.getSourceE164().get(), now, envelope.getTimestamp());
1514                     Files.delete(cacheFile.toPath());
1515                     // Try to delete directory if empty
1516                     new File(getMessageCachePath()).delete();
1517                 } catch (IOException e) {
1518                     System.err.println("Failed to delete cached message file “" + cacheFile + "”: " + e.getMessage());
1519                 }
1520             }
1521         }
1522     }
1523
1524     private boolean isMessageBlocked(SignalServiceEnvelope envelope, SignalServiceContent content) {
1525         SignalServiceAddress source;
1526         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1527             source = envelope.getSourceAddress();
1528         } else if (content != null) {
1529             source = content.getSender();
1530         } else {
1531             return false;
1532         }
1533         ContactInfo sourceContact = account.getContactStore().getContact(source);
1534         if (sourceContact != null && sourceContact.blocked) {
1535             return true;
1536         }
1537
1538         if (content != null && content.getDataMessage().isPresent()) {
1539             SignalServiceDataMessage message = content.getDataMessage().get();
1540             if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1541                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1542                 GroupInfo group = getGroup(groupInfo.getGroupId());
1543                 if (groupInfo.getType() == SignalServiceGroup.Type.DELIVER && group != null && group.blocked) {
1544                     return true;
1545                 }
1546             }
1547         }
1548         return false;
1549     }
1550
1551     private List<HandleAction> handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments) {
1552         List<HandleAction> actions = new ArrayList<>();
1553         if (content != null) {
1554             SignalServiceAddress sender;
1555             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1556                 sender = envelope.getSourceAddress();
1557             } else {
1558                 sender = content.getSender();
1559             }
1560             // Store uuid if we don't have it already
1561             resolveSignalServiceAddress(sender);
1562
1563             if (content.getDataMessage().isPresent()) {
1564                 SignalServiceDataMessage message = content.getDataMessage().get();
1565
1566                 if (content.isNeedsReceipt()) {
1567                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1568                 }
1569
1570                 actions.addAll(handleSignalServiceDataMessage(message, false, sender, account.getSelfAddress(), ignoreAttachments));
1571             }
1572             if (content.getSyncMessage().isPresent()) {
1573                 account.setMultiDevice(true);
1574                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1575                 if (syncMessage.getSent().isPresent()) {
1576                     SentTranscriptMessage message = syncMessage.getSent().get();
1577                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(), true, sender, message.getDestination().orNull(), ignoreAttachments));
1578                 }
1579                 if (syncMessage.getRequest().isPresent()) {
1580                     RequestMessage rm = syncMessage.getRequest().get();
1581                     if (rm.isContactsRequest()) {
1582                         actions.add(SendSyncContactsAction.create());
1583                     }
1584                     if (rm.isGroupsRequest()) {
1585                         actions.add(SendSyncGroupsAction.create());
1586                     }
1587                     if (rm.isBlockedListRequest()) {
1588                         actions.add(SendSyncBlockedListAction.create());
1589                     }
1590                     // TODO Handle rm.isConfigurationRequest();
1591                 }
1592                 if (syncMessage.getGroups().isPresent()) {
1593                     File tmpFile = null;
1594                     try {
1595                         tmpFile = IOUtils.createTempFile();
1596                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups().get().asPointer(), tmpFile)) {
1597                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1598                             DeviceGroup g;
1599                             while ((g = s.read()) != null) {
1600                                 GroupInfo syncGroup = account.getGroupStore().getGroup(g.getId());
1601                                 if (syncGroup == null) {
1602                                     syncGroup = new GroupInfo(g.getId());
1603                                 }
1604                                 if (g.getName().isPresent()) {
1605                                     syncGroup.name = g.getName().get();
1606                                 }
1607                                 syncGroup.addMembers(g.getMembers()
1608                                         .stream()
1609                                         .map(this::resolveSignalServiceAddress)
1610                                         .collect(Collectors.toSet()));
1611                                 if (!g.isActive()) {
1612                                     syncGroup.removeMember(account.getSelfAddress());
1613                                 } else {
1614                                     // Add ourself to the member set as it's marked as active
1615                                     syncGroup.addMembers(Collections.singleton(account.getSelfAddress()));
1616                                 }
1617                                 syncGroup.blocked = g.isBlocked();
1618                                 if (g.getColor().isPresent()) {
1619                                     syncGroup.color = g.getColor().get();
1620                                 }
1621
1622                                 if (g.getAvatar().isPresent()) {
1623                                     retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId);
1624                                 }
1625                                 syncGroup.inboxPosition = g.getInboxPosition().orNull();
1626                                 syncGroup.archived = g.isArchived();
1627                                 account.getGroupStore().updateGroup(syncGroup);
1628                             }
1629                         }
1630                     } catch (Exception e) {
1631                         e.printStackTrace();
1632                     } finally {
1633                         if (tmpFile != null) {
1634                             try {
1635                                 Files.delete(tmpFile.toPath());
1636                             } catch (IOException e) {
1637                                 System.err.println("Failed to delete received groups temp file “" + tmpFile + "”: " + e.getMessage());
1638                             }
1639                         }
1640                     }
1641                 }
1642                 if (syncMessage.getBlockedList().isPresent()) {
1643                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1644                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1645                         setContactBlocked(resolveSignalServiceAddress(address), true);
1646                     }
1647                     for (byte[] groupId : blockedListMessage.getGroupIds()) {
1648                         try {
1649                             setGroupBlocked(groupId, true);
1650                         } catch (GroupNotFoundException e) {
1651                             System.err.println("BlockedListMessage contained groupID that was not found in GroupStore: " + Base64.encodeBytes(groupId));
1652                         }
1653                     }
1654                 }
1655                 if (syncMessage.getContacts().isPresent()) {
1656                     File tmpFile = null;
1657                     try {
1658                         tmpFile = IOUtils.createTempFile();
1659                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1660                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream().asPointer(), tmpFile)) {
1661                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1662                             if (contactsMessage.isComplete()) {
1663                                 account.getContactStore().clear();
1664                             }
1665                             DeviceContact c;
1666                             while ((c = s.read()) != null) {
1667                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
1668                                     account.setProfileKey(c.getProfileKey().get());
1669                                 }
1670                                 final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
1671                                 ContactInfo contact = account.getContactStore().getContact(address);
1672                                 if (contact == null) {
1673                                     contact = new ContactInfo(address);
1674                                 }
1675                                 if (c.getName().isPresent()) {
1676                                     contact.name = c.getName().get();
1677                                 }
1678                                 if (c.getColor().isPresent()) {
1679                                     contact.color = c.getColor().get();
1680                                 }
1681                                 if (c.getProfileKey().isPresent()) {
1682                                     contact.profileKey = Base64.encodeBytes(c.getProfileKey().get().serialize());
1683                                 }
1684                                 if (c.getVerified().isPresent()) {
1685                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
1686                                     account.getSignalProtocolStore().setIdentityTrustLevel(verifiedMessage.getDestination(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1687                                 }
1688                                 if (c.getExpirationTimer().isPresent()) {
1689                                     contact.messageExpirationTime = c.getExpirationTimer().get();
1690                                 }
1691                                 contact.blocked = c.isBlocked();
1692                                 contact.inboxPosition = c.getInboxPosition().orNull();
1693                                 contact.archived = c.isArchived();
1694                                 account.getContactStore().updateContact(contact);
1695
1696                                 if (c.getAvatar().isPresent()) {
1697                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
1698                                 }
1699                             }
1700                         }
1701                     } catch (Exception e) {
1702                         e.printStackTrace();
1703                     } finally {
1704                         if (tmpFile != null) {
1705                             try {
1706                                 Files.delete(tmpFile.toPath());
1707                             } catch (IOException e) {
1708                                 System.err.println("Failed to delete received contacts temp file “" + tmpFile + "”: " + e.getMessage());
1709                             }
1710                         }
1711                     }
1712                 }
1713                 if (syncMessage.getVerified().isPresent()) {
1714                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
1715                     account.getSignalProtocolStore().setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1716                 }
1717                 if (syncMessage.getConfiguration().isPresent()) {
1718                     // TODO
1719                 }
1720             }
1721         }
1722         return actions;
1723     }
1724
1725     private File getContactAvatarFile(String number) {
1726         return new File(pathConfig.getAvatarsPath(), "contact-" + number);
1727     }
1728
1729     private File retrieveContactAvatarAttachment(SignalServiceAttachment attachment, String number) throws IOException, InvalidMessageException, MissingConfigurationException {
1730         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1731         if (attachment.isPointer()) {
1732             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1733             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
1734         } else {
1735             SignalServiceAttachmentStream stream = attachment.asStream();
1736             return Utils.retrieveAttachment(stream, getContactAvatarFile(number));
1737         }
1738     }
1739
1740     private File getGroupAvatarFile(byte[] groupId) {
1741         return new File(pathConfig.getAvatarsPath(), "group-" + Base64.encodeBytes(groupId).replace("/", "_"));
1742     }
1743
1744     private File retrieveGroupAvatarAttachment(SignalServiceAttachment attachment, byte[] groupId) throws IOException, InvalidMessageException, MissingConfigurationException {
1745         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1746         if (attachment.isPointer()) {
1747             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1748             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
1749         } else {
1750             SignalServiceAttachmentStream stream = attachment.asStream();
1751             return Utils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
1752         }
1753     }
1754
1755     private File getProfileAvatarFile(SignalServiceAddress address) {
1756         return new File(pathConfig.getAvatarsPath(), "profile-" + address.getLegacyIdentifier());
1757     }
1758
1759     private File retrieveProfileAvatar(SignalServiceAddress address, String avatarPath, ProfileKey profileKey) throws IOException {
1760         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1761         SignalServiceMessageReceiver receiver = getMessageReceiver();
1762         File outputFile = getProfileAvatarFile(address);
1763
1764         File tmpFile = IOUtils.createTempFile();
1765         try (InputStream input = receiver.retrieveProfileAvatar(avatarPath, tmpFile, profileKey, ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
1766             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
1767             IOUtils.copyStreamToFile(input, outputFile, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
1768         } finally {
1769             try {
1770                 Files.delete(tmpFile.toPath());
1771             } catch (IOException e) {
1772                 System.err.println("Failed to delete received avatar temp file “" + tmpFile + "”: " + e.getMessage());
1773             }
1774         }
1775         return outputFile;
1776     }
1777
1778     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
1779         return new File(pathConfig.getAttachmentsPath(), attachmentId.toString());
1780     }
1781
1782     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException, MissingConfigurationException {
1783         IOUtils.createPrivateDirectories(pathConfig.getAttachmentsPath());
1784         return retrieveAttachment(pointer, getAttachmentFile(pointer.getRemoteId()), true);
1785     }
1786
1787     private File retrieveAttachment(SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview) throws IOException, InvalidMessageException, MissingConfigurationException {
1788         if (storePreview && pointer.getPreview().isPresent()) {
1789             File previewFile = new File(outputFile + ".preview");
1790             try (OutputStream output = new FileOutputStream(previewFile)) {
1791                 byte[] preview = pointer.getPreview().get();
1792                 output.write(preview, 0, preview.length);
1793             } catch (FileNotFoundException e) {
1794                 e.printStackTrace();
1795                 return null;
1796             }
1797         }
1798
1799         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1800
1801         File tmpFile = IOUtils.createTempFile();
1802         try (InputStream input = messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE)) {
1803             IOUtils.copyStreamToFile(input, outputFile);
1804         } finally {
1805             try {
1806                 Files.delete(tmpFile.toPath());
1807             } catch (IOException e) {
1808                 System.err.println("Failed to delete received attachment temp file “" + tmpFile + "”: " + e.getMessage());
1809             }
1810         }
1811         return outputFile;
1812     }
1813
1814     private InputStream retrieveAttachmentAsStream(SignalServiceAttachmentPointer pointer, File tmpFile) throws IOException, InvalidMessageException, MissingConfigurationException {
1815         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1816         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
1817     }
1818
1819     void sendGroups() throws IOException, UntrustedIdentityException {
1820         File groupsFile = IOUtils.createTempFile();
1821
1822         try {
1823             try (OutputStream fos = new FileOutputStream(groupsFile)) {
1824                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
1825                 for (GroupInfo record : account.getGroupStore().getGroups()) {
1826                     out.write(new DeviceGroup(record.groupId, Optional.fromNullable(record.name),
1827                             new ArrayList<>(record.getMembers()), createGroupAvatarAttachment(record.groupId),
1828                             record.isMember(account.getSelfAddress()), Optional.of(record.messageExpirationTime),
1829                             Optional.fromNullable(record.color), record.blocked, Optional.fromNullable(record.inboxPosition), record.archived));
1830                 }
1831             }
1832
1833             if (groupsFile.exists() && groupsFile.length() > 0) {
1834                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
1835                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1836                             .withStream(groupsFileStream)
1837                             .withContentType("application/octet-stream")
1838                             .withLength(groupsFile.length())
1839                             .build();
1840
1841                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
1842                 }
1843             }
1844         } finally {
1845             try {
1846                 Files.delete(groupsFile.toPath());
1847             } catch (IOException e) {
1848                 System.err.println("Failed to delete groups temp file “" + groupsFile + "”: " + e.getMessage());
1849             }
1850         }
1851     }
1852
1853     public void sendContacts() throws IOException, UntrustedIdentityException {
1854         File contactsFile = IOUtils.createTempFile();
1855
1856         try {
1857             try (OutputStream fos = new FileOutputStream(contactsFile)) {
1858                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
1859                 for (ContactInfo record : account.getContactStore().getContacts()) {
1860                     VerifiedMessage verifiedMessage = null;
1861                     JsonIdentityKeyStore.Identity currentIdentity = account.getSignalProtocolStore().getIdentity(record.getAddress());
1862                     if (currentIdentity != null) {
1863                         verifiedMessage = new VerifiedMessage(record.getAddress(), currentIdentity.getIdentityKey(), currentIdentity.getTrustLevel().toVerifiedState(), currentIdentity.getDateAdded().getTime());
1864                     }
1865
1866                     ProfileKey profileKey = null;
1867                     try {
1868                         profileKey = record.profileKey == null ? null : new ProfileKey(Base64.decode(record.profileKey));
1869                     } catch (InvalidInputException ignored) {
1870                     }
1871                     out.write(new DeviceContact(record.getAddress(), Optional.fromNullable(record.name),
1872                             createContactAvatarAttachment(record.number), Optional.fromNullable(record.color),
1873                             Optional.fromNullable(verifiedMessage), Optional.fromNullable(profileKey), record.blocked,
1874                             Optional.of(record.messageExpirationTime),
1875                             Optional.fromNullable(record.inboxPosition), record.archived));
1876                 }
1877
1878                 if (account.getProfileKey() != null) {
1879                     // Send our own profile key as well
1880                     out.write(new DeviceContact(account.getSelfAddress(),
1881                             Optional.absent(), Optional.absent(),
1882                             Optional.absent(), Optional.absent(),
1883                             Optional.of(account.getProfileKey()),
1884                             false, Optional.absent(), Optional.absent(), false));
1885                 }
1886             }
1887
1888             if (contactsFile.exists() && contactsFile.length() > 0) {
1889                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
1890                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1891                             .withStream(contactsFileStream)
1892                             .withContentType("application/octet-stream")
1893                             .withLength(contactsFile.length())
1894                             .build();
1895
1896                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
1897                 }
1898             }
1899         } finally {
1900             try {
1901                 Files.delete(contactsFile.toPath());
1902             } catch (IOException e) {
1903                 System.err.println("Failed to delete contacts temp file “" + contactsFile + "”: " + e.getMessage());
1904             }
1905         }
1906     }
1907
1908     void sendBlockedList() throws IOException, UntrustedIdentityException {
1909         List<SignalServiceAddress> addresses = new ArrayList<>();
1910         for (ContactInfo record : account.getContactStore().getContacts()) {
1911             if (record.blocked) {
1912                 addresses.add(record.getAddress());
1913             }
1914         }
1915         List<byte[]> groupIds = new ArrayList<>();
1916         for (GroupInfo record : account.getGroupStore().getGroups()) {
1917             if (record.blocked) {
1918                 groupIds.add(record.groupId);
1919             }
1920         }
1921         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
1922     }
1923
1924     private void sendVerifiedMessage(SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel) throws IOException, UntrustedIdentityException {
1925         VerifiedMessage verifiedMessage = new VerifiedMessage(destination, identityKey, trustLevel.toVerifiedState(), System.currentTimeMillis());
1926         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
1927     }
1928
1929     public List<ContactInfo> getContacts() {
1930         return account.getContactStore().getContacts();
1931     }
1932
1933     public ContactInfo getContact(String number) {
1934         return account.getContactStore().getContact(Util.getSignalServiceAddressFromIdentifier(number));
1935     }
1936
1937     public GroupInfo getGroup(byte[] groupId) {
1938         return account.getGroupStore().getGroup(groupId);
1939     }
1940
1941     public List<JsonIdentityKeyStore.Identity> getIdentities() {
1942         return account.getSignalProtocolStore().getIdentities();
1943     }
1944
1945     public List<JsonIdentityKeyStore.Identity> getIdentities(String number) throws InvalidNumberException {
1946         return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));
1947     }
1948
1949     /**
1950      * Trust this the identity with this fingerprint
1951      *
1952      * @param name        username of the identity
1953      * @param fingerprint Fingerprint
1954      */
1955     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
1956         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
1957         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
1958         if (ids == null) {
1959             return false;
1960         }
1961         for (JsonIdentityKeyStore.Identity id : ids) {
1962             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
1963                 continue;
1964             }
1965
1966             account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1967             try {
1968                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1969             } catch (IOException | UntrustedIdentityException e) {
1970                 e.printStackTrace();
1971             }
1972             account.save();
1973             return true;
1974         }
1975         return false;
1976     }
1977
1978     /**
1979      * Trust this the identity with this safety number
1980      *
1981      * @param name         username of the identity
1982      * @param safetyNumber Safety number
1983      */
1984     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
1985         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
1986         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
1987         if (ids == null) {
1988             return false;
1989         }
1990         for (JsonIdentityKeyStore.Identity id : ids) {
1991             if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {
1992                 continue;
1993             }
1994
1995             account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1996             try {
1997                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1998             } catch (IOException | UntrustedIdentityException e) {
1999                 e.printStackTrace();
2000             }
2001             account.save();
2002             return true;
2003         }
2004         return false;
2005     }
2006
2007     /**
2008      * Trust all keys of this identity without verification
2009      *
2010      * @param name username of the identity
2011      */
2012     public boolean trustIdentityAllKeys(String name) {
2013         SignalServiceAddress address = resolveSignalServiceAddress(name);
2014         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2015         if (ids == null) {
2016             return false;
2017         }
2018         for (JsonIdentityKeyStore.Identity id : ids) {
2019             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2020                 account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2021                 try {
2022                     sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2023                 } catch (IOException | UntrustedIdentityException e) {
2024                     e.printStackTrace();
2025                 }
2026             }
2027         }
2028         account.save();
2029         return true;
2030     }
2031
2032     public String computeSafetyNumber(SignalServiceAddress theirAddress, IdentityKey theirIdentityKey) {
2033         return Utils.computeSafetyNumber(account.getSelfAddress(), getIdentityKeyPair().getPublicKey(), theirAddress, theirIdentityKey);
2034     }
2035
2036     void saveAccount() {
2037         account.save();
2038     }
2039
2040     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2041         String canonicalizedNumber = UuidUtil.isUuid(identifier) ? identifier : Util.canonicalizeNumber(identifier, account.getUsername());
2042         return resolveSignalServiceAddress(canonicalizedNumber);
2043     }
2044
2045     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2046         SignalServiceAddress address = Util.getSignalServiceAddressFromIdentifier(identifier);
2047
2048         return resolveSignalServiceAddress(address);
2049     }
2050
2051     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2052         if (address.matches(account.getSelfAddress())) {
2053             return account.getSelfAddress();
2054         }
2055
2056         return account.getRecipientStore().resolveServiceAddress(address);
2057     }
2058
2059     @Override
2060     public void close() throws IOException {
2061         if (messagePipe != null) {
2062             messagePipe.shutdown();
2063             messagePipe = null;
2064         }
2065
2066         if (unidentifiedMessagePipe != null) {
2067             unidentifiedMessagePipe.shutdown();
2068             unidentifiedMessagePipe = null;
2069         }
2070
2071         account.close();
2072     }
2073
2074     public interface ReceiveMessageHandler {
2075
2076         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2077     }
2078 }