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

   1 /*
   2   Copyright (C) 2015-2021 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.manager.groups.GroupId;
  22 import org.asamk.signal.manager.groups.GroupIdV1;
  23 import org.asamk.signal.manager.groups.GroupIdV2;
  24 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  25 import org.asamk.signal.manager.groups.GroupNotFoundException;
  26 import org.asamk.signal.manager.groups.GroupUtils;
  27 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  28 import org.asamk.signal.manager.helper.GroupHelper;
  29 import org.asamk.signal.manager.helper.PinHelper;
  30 import org.asamk.signal.manager.helper.ProfileHelper;
  31 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  32 import org.asamk.signal.manager.storage.SignalAccount;
  33 import org.asamk.signal.manager.storage.contacts.ContactInfo;
  34 import org.asamk.signal.manager.storage.groups.GroupInfo;
  35 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  36 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  37 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  38 import org.asamk.signal.manager.storage.profiles.SignalProfile;
  39 import org.asamk.signal.manager.storage.profiles.SignalProfileEntry;
  40 import org.asamk.signal.manager.storage.protocol.IdentityInfo;
  41 import org.asamk.signal.manager.storage.stickers.Sticker;
  42 import org.asamk.signal.manager.util.AttachmentUtils;
  43 import org.asamk.signal.manager.util.IOUtils;
  44 import org.asamk.signal.manager.util.KeyUtils;
  45 import org.asamk.signal.manager.util.Utils;
  46 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  47 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  48 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  49 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  50 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  51 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  52 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  53 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  54 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  55 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  56 import org.signal.libsignal.metadata.SelfSendException;
  57 import org.signal.libsignal.metadata.certificate.CertificateValidator;
  58 import org.signal.storageservice.protos.groups.GroupChange;
  59 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  60 import org.signal.storageservice.protos.groups.local.DecryptedGroupJoinInfo;
  61 import org.signal.storageservice.protos.groups.local.DecryptedMember;
  62 import org.signal.zkgroup.InvalidInputException;
  63 import org.signal.zkgroup.VerificationFailedException;
  64 import org.signal.zkgroup.auth.AuthCredentialResponse;
  65 import org.signal.zkgroup.groups.GroupMasterKey;
  66 import org.signal.zkgroup.groups.GroupSecretParams;
  67 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  68 import org.signal.zkgroup.profiles.ProfileKey;
  69 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  70 import org.slf4j.Logger;
  71 import org.slf4j.LoggerFactory;
  72 import org.whispersystems.libsignal.IdentityKey;
  73 import org.whispersystems.libsignal.IdentityKeyPair;
  74 import org.whispersystems.libsignal.InvalidKeyException;
  75 import org.whispersystems.libsignal.InvalidMessageException;
  76 import org.whispersystems.libsignal.InvalidVersionException;
  77 import org.whispersystems.libsignal.ecc.Curve;
  78 import org.whispersystems.libsignal.ecc.ECKeyPair;
  79 import org.whispersystems.libsignal.ecc.ECPublicKey;
  80 import org.whispersystems.libsignal.state.PreKeyRecord;
  81 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  82 import org.whispersystems.libsignal.util.Medium;
  83 import org.whispersystems.libsignal.util.Pair;
  84 import org.whispersystems.libsignal.util.guava.Optional;
  85 import org.whispersystems.signalservice.api.KeyBackupService;
  86 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  87 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  88 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  89 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  90 import org.whispersystems.signalservice.api.crypto.InvalidCiphertextException;
  91 import org.whispersystems.signalservice.api.crypto.ProfileCipher;
  92 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  93 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
  94 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  95 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  96 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  97 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
  98 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  99 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
 100 import org.whispersystems.signalservice.api.kbs.MasterKey;
 101 import org.whispersystems.signalservice.api.messages.SendMessageResult;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
 104 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
 105 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
 106 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 107 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 108 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 109 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 110 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 111 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 112 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload;
 113 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload.StickerInfo;
 114 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 115 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 116 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 117 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 118 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 119 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 120 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 121 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 122 import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
 123 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 124 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 125 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 126 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 127 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 128 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 129 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 130 import org.whispersystems.signalservice.api.push.ContactTokenDetails;
 131 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 132 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 133 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 134 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 135 import org.whispersystems.signalservice.api.util.SleepTimer;
 136 import org.whispersystems.signalservice.api.util.StreamDetails;
 137 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 138 import org.whispersystems.signalservice.api.util.UuidUtil;
 139 import org.whispersystems.signalservice.internal.configuration.SignalServiceConfiguration;
 140 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 141 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 142 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 143 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 144 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 145 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 146 import org.whispersystems.signalservice.internal.util.Hex;
 147 import org.whispersystems.util.Base64;
 148
 149 import java.io.Closeable;
 150 import java.io.File;
 151 import java.io.FileInputStream;
 152 import java.io.FileNotFoundException;
 153 import java.io.FileOutputStream;
 154 import java.io.IOException;
 155 import java.io.InputStream;
 156 import java.io.OutputStream;
 157 import java.net.URI;
 158 import java.net.URISyntaxException;
 159 import java.net.URLEncoder;
 160 import java.nio.charset.StandardCharsets;
 161 import java.nio.file.Files;
 162 import java.nio.file.Paths;
 163 import java.nio.file.StandardCopyOption;
 164 import java.security.SignatureException;
 165 import java.util.ArrayList;
 166 import java.util.Arrays;
 167 import java.util.Collection;
 168 import java.util.Date;
 169 import java.util.HashMap;
 170 import java.util.HashSet;
 171 import java.util.List;
 172 import java.util.Map;
 173 import java.util.Set;
 174 import java.util.UUID;
 175 import java.util.concurrent.ExecutorService;
 176 import java.util.concurrent.TimeUnit;
 177 import java.util.concurrent.TimeoutException;
 178 import java.util.stream.Collectors;
 179 import java.util.zip.ZipEntry;
 180 import java.util.zip.ZipFile;
 181
 182 import static org.asamk.signal.manager.ServiceConfig.CDS_MRENCLAVE;
 183 import static org.asamk.signal.manager.ServiceConfig.capabilities;
 184 import static org.asamk.signal.manager.ServiceConfig.getIasKeyStore;
 185
 186 public class Manager implements Closeable {
 187
 188     final static Logger logger = LoggerFactory.getLogger(Manager.class);
 189
 190     private final CertificateValidator certificateValidator = new CertificateValidator(ServiceConfig.getUnidentifiedSenderTrustRoot());
 191
 192     private final SignalServiceConfiguration serviceConfiguration;
 193     private final String userAgent;
 194
 195     private SignalAccount account;
 196     private final PathConfig pathConfig;
 197     private final SignalServiceAccountManager accountManager;
 198     private final GroupsV2Api groupsV2Api;
 199     private final GroupsV2Operations groupsV2Operations;
 200     private final SignalServiceMessageReceiver messageReceiver;
 201     private final ClientZkProfileOperations clientZkProfileOperations;
 202
 203     private SignalServiceMessagePipe messagePipe = null;
 204     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 205
 206     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 207     private final ProfileHelper profileHelper;
 208     private final GroupHelper groupHelper;
 209     private final PinHelper pinHelper;
 210
 211     Manager(
 212             SignalAccount account,
 213             PathConfig pathConfig,
 214             SignalServiceConfiguration serviceConfiguration,
 215             String userAgent
 216     ) {
 217         this.account = account;
 218         this.pathConfig = pathConfig;
 219         this.serviceConfiguration = serviceConfiguration;
 220         this.userAgent = userAgent;
 221         this.groupsV2Operations = capabilities.isGv2() ? new GroupsV2Operations(ClientZkOperations.create(
 222                 serviceConfiguration)) : null;
 223         final SleepTimer timer = new UptimeSleepTimer();
 224         this.accountManager = new SignalServiceAccountManager(serviceConfiguration,
 225                 new DynamicCredentialsProvider(account.getUuid(),
 226                         account.getUsername(),
 227                         account.getPassword(),
 228                         account.getSignalingKey(),
 229                         account.getDeviceId()),
 230                 userAgent,
 231                 groupsV2Operations,
 232                 timer);
 233         this.groupsV2Api = accountManager.getGroupsV2Api();
 234         final KeyBackupService keyBackupService = ServiceConfig.createKeyBackupService(accountManager);
 235         this.pinHelper = new PinHelper(keyBackupService);
 236         this.clientZkProfileOperations = capabilities.isGv2() ? ClientZkOperations.create(serviceConfiguration)
 237                 .getProfileOperations() : null;
 238         this.messageReceiver = new SignalServiceMessageReceiver(serviceConfiguration,
 239                 account.getUuid(),
 240                 account.getUsername(),
 241                 account.getPassword(),
 242                 account.getDeviceId(),
 243                 account.getSignalingKey(),
 244                 userAgent,
 245                 null,
 246                 timer,
 247                 clientZkProfileOperations);
 248
 249         this.account.setResolver(this::resolveSignalServiceAddress);
 250
 251         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 252                 account.getProfileStore()::getProfileKey,
 253                 this::getRecipientProfile,
 254                 this::getSenderCertificate);
 255         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 256                 unidentifiedAccessHelper::getAccessFor,
 257                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 258                 () -> messageReceiver);
 259         this.groupHelper = new GroupHelper(this::getRecipientProfileKeyCredential,
 260                 this::getRecipientProfile,
 261                 account::getSelfAddress,
 262                 groupsV2Operations,
 263                 groupsV2Api,
 264                 this::getGroupAuthForToday);
 265     }
 266
 267     public String getUsername() {
 268         return account.getUsername();
 269     }
 270
 271     public SignalServiceAddress getSelfAddress() {
 272         return account.getSelfAddress();
 273     }
 274
 275     private IdentityKeyPair getIdentityKeyPair() {
 276         return account.getSignalProtocolStore().getIdentityKeyPair();
 277     }
 278
 279     public int getDeviceId() {
 280         return account.getDeviceId();
 281     }
 282
 283     public static Manager init(
 284             String username, File settingsPath, SignalServiceConfiguration serviceConfiguration, String userAgent
 285     ) throws IOException, NotRegisteredException {
 286         PathConfig pathConfig = PathConfig.createDefault(settingsPath);
 287
 288         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 289             throw new NotRegisteredException();
 290         }
 291
 292         SignalAccount account = SignalAccount.load(pathConfig.getDataPath(), username);
 293
 294         if (!account.isRegistered()) {
 295             throw new NotRegisteredException();
 296         }
 297
 298         return new Manager(account, pathConfig, serviceConfiguration, userAgent);
 299     }
 300
 301     public void checkAccountState() throws IOException {
 302         if (account.isRegistered()) {
 303             if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 304                 refreshPreKeys();
 305                 account.save();
 306             }
 307             if (account.getUuid() == null) {
 308                 account.setUuid(accountManager.getOwnUuid());
 309                 account.save();
 310             }
 311             updateAccountAttributes();
 312         }
 313     }
 314
 315     public boolean isRegistered() {
 316         return account.isRegistered();
 317     }
 318
 319     /**
 320      * This is used for checking a set of phone numbers for registration on Signal
 321      *
 322      * @param numbers The set of phone number in question
 323      * @return A map of numbers to booleans. True if registered, false otherwise. Should never be null
 324      * @throws IOException if its unable to check if the users are registered
 325      */
 326     public Map<String, Boolean> areUsersRegistered(Set<String> numbers) throws IOException {
 327         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 328         List<ContactTokenDetails> contactDetails = this.accountManager.getContacts(numbers);
 329
 330         Set<String> registeredUsers = contactDetails.stream()
 331                 .map(ContactTokenDetails::getNumber)
 332                 .collect(Collectors.toSet());
 333
 334         return numbers.stream().collect(Collectors.toMap(x -> x, registeredUsers::contains));
 335     }
 336
 337     public void updateAccountAttributes() throws IOException {
 338         accountManager.setAccountAttributes(account.getSignalingKey(),
 339                 account.getSignalProtocolStore().getLocalRegistrationId(),
 340                 true,
 341                 // set legacy pin only if no KBS master key is set
 342                 account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 343                 account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 344                 account.getSelfUnidentifiedAccessKey(),
 345                 account.isUnrestrictedUnidentifiedAccess(),
 346                 capabilities,
 347                 account.isDiscoverableByPhoneNumber());
 348     }
 349
 350     public void setProfile(String name, File avatar) throws IOException {
 351         try (final StreamDetails streamDetails = avatar == null ? null : Utils.createStreamDetailsFromFile(avatar)) {
 352             accountManager.setVersionedProfile(account.getUuid(), account.getProfileKey(), name, streamDetails);
 353         }
 354     }
 355
 356     public void unregister() throws IOException {
 357         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 358         // If this is the master device, other users can't send messages to this number anymore.
 359         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 360         accountManager.setGcmId(Optional.absent());
 361
 362         account.setRegistered(false);
 363         account.save();
 364     }
 365
 366     public List<DeviceInfo> getLinkedDevices() throws IOException {
 367         List<DeviceInfo> devices = accountManager.getDevices();
 368         account.setMultiDevice(devices.size() > 1);
 369         account.save();
 370         return devices;
 371     }
 372
 373     public void removeLinkedDevices(int deviceId) throws IOException {
 374         accountManager.removeDevice(deviceId);
 375         List<DeviceInfo> devices = accountManager.getDevices();
 376         account.setMultiDevice(devices.size() > 1);
 377         account.save();
 378     }
 379
 380     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 381         DeviceLinkInfo info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 382
 383         addDevice(info.deviceIdentifier, info.deviceKey);
 384     }
 385
 386     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 387         IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 388         String verificationCode = accountManager.getNewDeviceVerificationCode();
 389
 390         accountManager.addDevice(deviceIdentifier,
 391                 deviceKey,
 392                 identityKeyPair,
 393                 Optional.of(account.getProfileKey().serialize()),
 394                 verificationCode);
 395         account.setMultiDevice(true);
 396         account.save();
 397     }
 398
 399     private List<PreKeyRecord> generatePreKeys() {
 400         List<PreKeyRecord> records = new ArrayList<>(ServiceConfig.PREKEY_BATCH_SIZE);
 401
 402         final int offset = account.getPreKeyIdOffset();
 403         for (int i = 0; i < ServiceConfig.PREKEY_BATCH_SIZE; i++) {
 404             int preKeyId = (offset + i) % Medium.MAX_VALUE;
 405             ECKeyPair keyPair = Curve.generateKeyPair();
 406             PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);
 407
 408             records.add(record);
 409         }
 410
 411         account.addPreKeys(records);
 412         account.save();
 413
 414         return records;
 415     }
 416
 417     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 418         try {
 419             ECKeyPair keyPair = Curve.generateKeyPair();
 420             byte[] signature = Curve.calculateSignature(identityKeyPair.getPrivateKey(),
 421                     keyPair.getPublicKey().serialize());
 422             SignedPreKeyRecord record = new SignedPreKeyRecord(account.getNextSignedPreKeyId(),
 423                     System.currentTimeMillis(),
 424                     keyPair,
 425                     signature);
 426
 427             account.addSignedPreKey(record);
 428             account.save();
 429
 430             return record;
 431         } catch (InvalidKeyException e) {
 432             throw new AssertionError(e);
 433         }
 434     }
 435
 436     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 437         if (pin.isPresent()) {
 438             final MasterKey masterKey = account.getPinMasterKey() != null
 439                     ? account.getPinMasterKey()
 440                     : KeyUtils.createMasterKey();
 441
 442             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 443
 444             account.setRegistrationLockPin(pin.get());
 445             account.setPinMasterKey(masterKey);
 446         } else {
 447             // Remove legacy registration lock
 448             accountManager.removeRegistrationLockV1();
 449
 450             // Remove KBS Pin
 451             pinHelper.removeRegistrationLockPin();
 452
 453             account.setRegistrationLockPin(null);
 454             account.setPinMasterKey(null);
 455         }
 456         account.save();
 457     }
 458
 459     void refreshPreKeys() throws IOException {
 460         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 461         final IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 462         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 463
 464         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 465     }
 466
 467     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 468         if (messagePipe == null) {
 469             messagePipe = messageReceiver.createMessagePipe();
 470         }
 471         return messagePipe;
 472     }
 473
 474     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 475         if (unidentifiedMessagePipe == null) {
 476             unidentifiedMessagePipe = messageReceiver.createUnidentifiedMessagePipe();
 477         }
 478         return unidentifiedMessagePipe;
 479     }
 480
 481     private SignalServiceMessageSender createMessageSender() {
 482         final ExecutorService executor = null;
 483         return new SignalServiceMessageSender(serviceConfiguration,
 484                 account.getUuid(),
 485                 account.getUsername(),
 486                 account.getPassword(),
 487                 account.getDeviceId(),
 488                 account.getSignalProtocolStore(),
 489                 userAgent,
 490                 account.isMultiDevice(),
 491                 Optional.fromNullable(messagePipe),
 492                 Optional.fromNullable(unidentifiedMessagePipe),
 493                 Optional.absent(),
 494                 clientZkProfileOperations,
 495                 executor,
 496                 ServiceConfig.MAX_ENVELOPE_SIZE);
 497     }
 498
 499     private SignalServiceProfile getEncryptedRecipientProfile(SignalServiceAddress address) throws IOException {
 500         return profileHelper.retrieveProfileSync(address, SignalServiceProfile.RequestType.PROFILE).getProfile();
 501     }
 502
 503     private SignalProfile getRecipientProfile(
 504             SignalServiceAddress address
 505     ) {
 506         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
 507         if (profileEntry == null) {
 508             return null;
 509         }
 510         long now = new Date().getTime();
 511         // Profiles are cache for 24h before retrieving them again
 512         if (!profileEntry.isRequestPending() && (
 513                 profileEntry.getProfile() == null || now - profileEntry.getLastUpdateTimestamp() > 24 * 60 * 60 * 1000
 514         )) {
 515             ProfileKey profileKey = profileEntry.getProfileKey();
 516             profileEntry.setRequestPending(true);
 517             SignalProfile profile;
 518             try {
 519                 profile = retrieveRecipientProfile(address, profileKey);
 520             } catch (IOException e) {
 521                 logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 522                 profileEntry.setRequestPending(false);
 523                 return null;
 524             }
 525             profileEntry.setRequestPending(false);
 526             account.getProfileStore()
 527                     .updateProfile(address, profileKey, now, profile, profileEntry.getProfileKeyCredential());
 528             return profile;
 529         }
 530         return profileEntry.getProfile();
 531     }
 532
 533     private ProfileKeyCredential getRecipientProfileKeyCredential(SignalServiceAddress address) {
 534         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
 535         if (profileEntry == null) {
 536             return null;
 537         }
 538         if (profileEntry.getProfileKeyCredential() == null) {
 539             ProfileAndCredential profileAndCredential;
 540             try {
 541                 profileAndCredential = profileHelper.retrieveProfileSync(address,
 542                         SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 543             } catch (IOException e) {
 544                 logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 545                 return null;
 546             }
 547
 548             long now = new Date().getTime();
 549             final ProfileKeyCredential profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 550             final SignalProfile profile = decryptProfile(address,
 551                     profileEntry.getProfileKey(),
 552                     profileAndCredential.getProfile());
 553             account.getProfileStore()
 554                     .updateProfile(address, profileEntry.getProfileKey(), now, profile, profileKeyCredential);
 555             return profileKeyCredential;
 556         }
 557         return profileEntry.getProfileKeyCredential();
 558     }
 559
 560     private SignalProfile retrieveRecipientProfile(
 561             SignalServiceAddress address, ProfileKey profileKey
 562     ) throws IOException {
 563         final SignalServiceProfile encryptedProfile = getEncryptedRecipientProfile(address);
 564
 565         return decryptProfile(address, profileKey, encryptedProfile);
 566     }
 567
 568     private SignalProfile decryptProfile(
 569             final SignalServiceAddress address, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 570     ) {
 571         File avatarFile = null;
 572         try {
 573             avatarFile = encryptedProfile.getAvatar() == null
 574                     ? null
 575                     : retrieveProfileAvatar(address, encryptedProfile.getAvatar(), profileKey);
 576         } catch (Throwable e) {
 577             logger.warn("Failed to retrieve profile avatar, ignoring: {}", e.getMessage());
 578         }
 579
 580         ProfileCipher profileCipher = new ProfileCipher(profileKey);
 581         try {
 582             String name;
 583             try {
 584                 name = encryptedProfile.getName() == null
 585                         ? null
 586                         : new String(profileCipher.decryptName(Base64.decode(encryptedProfile.getName())));
 587             } catch (IOException e) {
 588                 name = null;
 589             }
 590             String unidentifiedAccess;
 591             try {
 592                 unidentifiedAccess = encryptedProfile.getUnidentifiedAccess() == null
 593                         || !profileCipher.verifyUnidentifiedAccess(Base64.decode(encryptedProfile.getUnidentifiedAccess()))
 594                         ? null
 595                         : encryptedProfile.getUnidentifiedAccess();
 596             } catch (IOException e) {
 597                 unidentifiedAccess = null;
 598             }
 599             return new SignalProfile(encryptedProfile.getIdentityKey(),
 600                     name,
 601                     avatarFile,
 602                     unidentifiedAccess,
 603                     encryptedProfile.isUnrestrictedUnidentifiedAccess(),
 604                     encryptedProfile.getCapabilities());
 605         } catch (InvalidCiphertextException e) {
 606             return null;
 607         }
 608     }
 609
 610     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 611         File file = getGroupAvatarFile(groupId);
 612         if (!file.exists()) {
 613             return Optional.absent();
 614         }
 615
 616         return Optional.of(AttachmentUtils.createAttachment(file));
 617     }
 618
 619     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(String number) throws IOException {
 620         File file = getContactAvatarFile(number);
 621         if (!file.exists()) {
 622             return Optional.absent();
 623         }
 624
 625         return Optional.of(AttachmentUtils.createAttachment(file));
 626     }
 627
 628     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 629         GroupInfo g = getGroup(groupId);
 630         if (g == null) {
 631             throw new GroupNotFoundException(groupId);
 632         }
 633         if (!g.isMember(account.getSelfAddress())) {
 634             throw new NotAGroupMemberException(groupId, g.getTitle());
 635         }
 636         return g;
 637     }
 638
 639     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 640         GroupInfo g = getGroup(groupId);
 641         if (g == null) {
 642             throw new GroupNotFoundException(groupId);
 643         }
 644         if (!g.isMember(account.getSelfAddress()) && !g.isPendingMember(account.getSelfAddress())) {
 645             throw new NotAGroupMemberException(groupId, g.getTitle());
 646         }
 647         return g;
 648     }
 649
 650     public List<GroupInfo> getGroups() {
 651         return account.getGroupStore().getGroups();
 652     }
 653
 654     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 655             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 656     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 657         final GroupInfo g = getGroupForSending(groupId);
 658
 659         GroupUtils.setGroupContext(messageBuilder, g);
 660         messageBuilder.withExpiration(g.getMessageExpirationTime());
 661
 662         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 663     }
 664
 665     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 666             String messageText, List<String> attachments, GroupId groupId
 667     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 668         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 669                 .withBody(messageText);
 670         if (attachments != null) {
 671             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 672         }
 673
 674         return sendGroupMessage(messageBuilder, groupId);
 675     }
 676
 677     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 678             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 679     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 680         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
 681                 remove,
 682                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
 683                 targetSentTimestamp);
 684         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 685                 .withReaction(reaction);
 686
 687         return sendGroupMessage(messageBuilder, groupId);
 688     }
 689
 690     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(GroupId groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 691
 692         SignalServiceDataMessage.Builder messageBuilder;
 693
 694         final GroupInfo g = getGroupForUpdating(groupId);
 695         if (g instanceof GroupInfoV1) {
 696             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
 697             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 698                     .withId(groupId.serialize())
 699                     .build();
 700             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 701             groupInfoV1.removeMember(account.getSelfAddress());
 702             account.getGroupStore().updateGroup(groupInfoV1);
 703         } else {
 704             final GroupInfoV2 groupInfoV2 = (GroupInfoV2) g;
 705             final Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.leaveGroup(groupInfoV2);
 706             groupInfoV2.setGroup(groupGroupChangePair.first());
 707             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 708             account.getGroupStore().updateGroup(groupInfoV2);
 709         }
 710
 711         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 712     }
 713
 714     private Pair<GroupId, List<SendMessageResult>> sendUpdateGroupMessage(
 715             GroupId groupId, String name, Collection<SignalServiceAddress> members, String avatarFile
 716     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 717         GroupInfo g;
 718         SignalServiceDataMessage.Builder messageBuilder;
 719         if (groupId == null) {
 720             // Create new group
 721             GroupInfoV2 gv2 = groupHelper.createGroupV2(name, members, avatarFile);
 722             if (gv2 == null) {
 723                 GroupInfoV1 gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 724                 gv1.addMembers(List.of(account.getSelfAddress()));
 725                 updateGroupV1(gv1, name, members, avatarFile);
 726                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 727                 g = gv1;
 728             } else {
 729                 messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 730                 g = gv2;
 731             }
 732         } else {
 733             GroupInfo group = getGroupForUpdating(groupId);
 734             if (group instanceof GroupInfoV2) {
 735                 final GroupInfoV2 groupInfoV2 = (GroupInfoV2) group;
 736
 737                 Pair<Long, List<SendMessageResult>> result = null;
 738                 if (groupInfoV2.isPendingMember(getSelfAddress())) {
 739                     Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.acceptInvite(groupInfoV2);
 740                     result = sendUpdateGroupMessage(groupInfoV2,
 741                             groupGroupChangePair.first(),
 742                             groupGroupChangePair.second());
 743                 }
 744
 745                 if (members != null) {
 746                     final Set<SignalServiceAddress> newMembers = new HashSet<>(members);
 747                     newMembers.removeAll(group.getMembers()
 748                             .stream()
 749                             .map(this::resolveSignalServiceAddress)
 750                             .collect(Collectors.toSet()));
 751                     if (newMembers.size() > 0) {
 752                         Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2,
 753                                 newMembers);
 754                         result = sendUpdateGroupMessage(groupInfoV2,
 755                                 groupGroupChangePair.first(),
 756                                 groupGroupChangePair.second());
 757                     }
 758                 }
 759                 if (result == null || name != null || avatarFile != null) {
 760                     Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2,
 761                             name,
 762                             avatarFile);
 763                     result = sendUpdateGroupMessage(groupInfoV2,
 764                             groupGroupChangePair.first(),
 765                             groupGroupChangePair.second());
 766                 }
 767
 768                 return new Pair<>(group.getGroupId(), result.second());
 769             } else {
 770                 GroupInfoV1 gv1 = (GroupInfoV1) group;
 771                 updateGroupV1(gv1, name, members, avatarFile);
 772                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 773                 g = gv1;
 774             }
 775         }
 776
 777         account.getGroupStore().updateGroup(g);
 778
 779         final Pair<Long, List<SendMessageResult>> result = sendMessage(messageBuilder,
 780                 g.getMembersIncludingPendingWithout(account.getSelfAddress()));
 781         return new Pair<>(g.getGroupId(), result.second());
 782     }
 783
 784     public Pair<GroupId, List<SendMessageResult>> joinGroup(
 785             GroupInviteLinkUrl inviteLinkUrl
 786     ) throws IOException, GroupLinkNotActiveException {
 787         return sendJoinGroupMessage(inviteLinkUrl);
 788     }
 789
 790     private Pair<GroupId, List<SendMessageResult>> sendJoinGroupMessage(
 791             GroupInviteLinkUrl inviteLinkUrl
 792     ) throws IOException, GroupLinkNotActiveException {
 793         final DecryptedGroupJoinInfo groupJoinInfo = groupHelper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
 794                 inviteLinkUrl.getPassword());
 795         final GroupChange groupChange = groupHelper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
 796                 inviteLinkUrl.getPassword(),
 797                 groupJoinInfo);
 798         final GroupInfoV2 group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
 799                 groupJoinInfo.getRevision() + 1,
 800                 groupChange.toByteArray());
 801
 802         if (group.getGroup() == null) {
 803             // Only requested member, can't send update to group members
 804             return new Pair<>(group.getGroupId(), List.of());
 805         }
 806
 807         final Pair<Long, List<SendMessageResult>> result = sendUpdateGroupMessage(group, group.getGroup(), groupChange);
 808
 809         return new Pair<>(group.getGroupId(), result.second());
 810     }
 811
 812     private Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 813             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
 814     ) throws IOException {
 815         group.setGroup(newDecryptedGroup);
 816         final SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(group,
 817                 groupChange.toByteArray());
 818         account.getGroupStore().updateGroup(group);
 819         return sendMessage(messageBuilder, group.getMembersIncludingPendingWithout(account.getSelfAddress()));
 820     }
 821
 822     private void updateGroupV1(
 823             final GroupInfoV1 g,
 824             final String name,
 825             final Collection<SignalServiceAddress> members,
 826             final String avatarFile
 827     ) throws IOException {
 828         if (name != null) {
 829             g.name = name;
 830         }
 831
 832         if (members != null) {
 833             final Set<String> newE164Members = new HashSet<>();
 834             for (SignalServiceAddress member : members) {
 835                 if (g.isMember(member) || !member.getNumber().isPresent()) {
 836                     continue;
 837                 }
 838                 newE164Members.add(member.getNumber().get());
 839             }
 840
 841             final List<ContactTokenDetails> contacts = accountManager.getContacts(newE164Members);
 842             if (contacts.size() != newE164Members.size()) {
 843                 // Some of the new members are not registered on Signal
 844                 for (ContactTokenDetails contact : contacts) {
 845                     newE164Members.remove(contact.getNumber());
 846                 }
 847                 throw new IOException("Failed to add members "
 848                         + String.join(", ", newE164Members)
 849                         + " to group: Not registered on Signal");
 850             }
 851
 852             g.addMembers(members);
 853         }
 854
 855         if (avatarFile != null) {
 856             IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
 857             File aFile = getGroupAvatarFile(g.getGroupId());
 858             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 859         }
 860     }
 861
 862     Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 863             GroupIdV1 groupId, SignalServiceAddress recipient
 864     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 865         GroupInfoV1 g;
 866         GroupInfo group = getGroupForSending(groupId);
 867         if (!(group instanceof GroupInfoV1)) {
 868             throw new RuntimeException("Received an invalid group request for a v2 group!");
 869         }
 870         g = (GroupInfoV1) group;
 871
 872         if (!g.isMember(recipient)) {
 873             throw new NotAGroupMemberException(groupId, g.name);
 874         }
 875
 876         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 877
 878         // Send group message only to the recipient who requested it
 879         return sendMessage(messageBuilder, List.of(recipient));
 880     }
 881
 882     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 883         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 884                 .withId(g.getGroupId().serialize())
 885                 .withName(g.name)
 886                 .withMembers(new ArrayList<>(g.getMembers()));
 887
 888         File aFile = getGroupAvatarFile(g.getGroupId());
 889         if (aFile.exists()) {
 890             try {
 891                 group.withAvatar(AttachmentUtils.createAttachment(aFile));
 892             } catch (IOException e) {
 893                 throw new AttachmentInvalidException(aFile.toString(), e);
 894             }
 895         }
 896
 897         return SignalServiceDataMessage.newBuilder()
 898                 .asGroupMessage(group.build())
 899                 .withExpiration(g.getMessageExpirationTime());
 900     }
 901
 902     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
 903         SignalServiceGroupV2.Builder group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
 904                 .withRevision(g.getGroup().getRevision())
 905                 .withSignedGroupChange(signedGroupChange);
 906         return SignalServiceDataMessage.newBuilder()
 907                 .asGroupMessage(group.build())
 908                 .withExpiration(g.getMessageExpirationTime());
 909     }
 910
 911     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
 912             GroupIdV1 groupId, SignalServiceAddress recipient
 913     ) throws IOException {
 914         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 915                 .withId(groupId.serialize());
 916
 917         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 918                 .asGroupMessage(group.build());
 919
 920         // Send group info request message to the recipient who sent us a message with this groupId
 921         return sendMessage(messageBuilder, List.of(recipient));
 922     }
 923
 924     void sendReceipt(
 925             SignalServiceAddress remoteAddress, long messageId
 926     ) throws IOException, UntrustedIdentityException {
 927         SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
 928                 List.of(messageId),
 929                 System.currentTimeMillis());
 930
 931         createMessageSender().sendReceipt(remoteAddress,
 932                 unidentifiedAccessHelper.getAccessFor(remoteAddress),
 933                 receiptMessage);
 934     }
 935
 936     public Pair<Long, List<SendMessageResult>> sendMessage(
 937             String messageText, List<String> attachments, List<String> recipients
 938     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
 939         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 940                 .withBody(messageText);
 941         if (attachments != null) {
 942             List<SignalServiceAttachment> attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
 943
 944             // Upload attachments here, so we only upload once even for multiple recipients
 945             SignalServiceMessageSender messageSender = createMessageSender();
 946             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 947             for (SignalServiceAttachment attachment : attachmentStreams) {
 948                 if (attachment.isStream()) {
 949                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 950                 } else if (attachment.isPointer()) {
 951                     attachmentPointers.add(attachment.asPointer());
 952                 }
 953             }
 954
 955             messageBuilder.withAttachments(attachmentPointers);
 956         }
 957         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
 958     }
 959
 960     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
 961             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
 962     ) throws IOException, InvalidNumberException {
 963         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
 964                 remove,
 965                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
 966                 targetSentTimestamp);
 967         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 968                 .withReaction(reaction);
 969         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
 970     }
 971
 972     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
 973         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
 974
 975         final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
 976         try {
 977             return sendMessage(messageBuilder, signalServiceAddresses);
 978         } catch (Exception e) {
 979             for (SignalServiceAddress address : signalServiceAddresses) {
 980                 handleEndSession(address);
 981             }
 982             account.save();
 983             throw e;
 984         }
 985     }
 986
 987     public String getContactName(String number) throws InvalidNumberException {
 988         ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));
 989         if (contact == null) {
 990             return "";
 991         } else {
 992             return contact.name;
 993         }
 994     }
 995
 996     public void setContactName(String number, String name) throws InvalidNumberException {
 997         final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 998         ContactInfo contact = account.getContactStore().getContact(address);
 999         if (contact == null) {
1000             contact = new ContactInfo(address);
1001         }
1002         contact.name = name;
1003         account.getContactStore().updateContact(contact);
1004         account.save();
1005     }
1006
1007     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
1008         setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
1009     }
1010
1011     private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
1012         ContactInfo contact = account.getContactStore().getContact(address);
1013         if (contact == null) {
1014             contact = new ContactInfo(address);
1015         }
1016         contact.blocked = blocked;
1017         account.getContactStore().updateContact(contact);
1018         account.save();
1019     }
1020
1021     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1022         GroupInfo group = getGroup(groupId);
1023         if (group == null) {
1024             throw new GroupNotFoundException(groupId);
1025         }
1026
1027         group.setBlocked(blocked);
1028         account.getGroupStore().updateGroup(group);
1029         account.save();
1030     }
1031
1032     public Pair<GroupId, List<SendMessageResult>> updateGroup(
1033             GroupId groupId, String name, List<String> members, String avatar
1034     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
1035         return sendUpdateGroupMessage(groupId,
1036                 name,
1037                 members == null ? null : getSignalServiceAddresses(members),
1038                 avatar);
1039     }
1040
1041     /**
1042      * Change the expiration timer for a contact
1043      */
1044     public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) throws IOException {
1045         ContactInfo contact = account.getContactStore().getContact(address);
1046         contact.messageExpirationTime = messageExpirationTimer;
1047         account.getContactStore().updateContact(contact);
1048         sendExpirationTimerUpdate(address);
1049         account.save();
1050     }
1051
1052     private void sendExpirationTimerUpdate(SignalServiceAddress address) throws IOException {
1053         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1054                 .asExpirationUpdate();
1055         sendMessage(messageBuilder, List.of(address));
1056     }
1057
1058     /**
1059      * Change the expiration timer for a contact
1060      */
1061     public void setExpirationTimer(
1062             String number, int messageExpirationTimer
1063     ) throws IOException, InvalidNumberException {
1064         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
1065         setExpirationTimer(address, messageExpirationTimer);
1066     }
1067
1068     /**
1069      * Change the expiration timer for a group
1070      */
1071     public void setExpirationTimer(GroupId groupId, int messageExpirationTimer) {
1072         GroupInfo g = getGroup(groupId);
1073         if (g instanceof GroupInfoV1) {
1074             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
1075             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1076             account.getGroupStore().updateGroup(groupInfoV1);
1077         } else {
1078             throw new RuntimeException("TODO Not implemented!");
1079         }
1080     }
1081
1082     /**
1083      * Upload the sticker pack from path.
1084      *
1085      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1086      * @return if successful, returns the URL to install the sticker pack in the signal app
1087      */
1088     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1089         SignalServiceStickerManifestUpload manifest = getSignalServiceStickerManifestUpload(path);
1090
1091         SignalServiceMessageSender messageSender = createMessageSender();
1092
1093         byte[] packKey = KeyUtils.createStickerUploadKey();
1094         String packId = messageSender.uploadStickerManifest(manifest, packKey);
1095
1096         Sticker sticker = new Sticker(Hex.fromStringCondensed(packId), packKey);
1097         account.getStickerStore().updateSticker(sticker);
1098         account.save();
1099
1100         try {
1101             return new URI("https",
1102                     "signal.art",
1103                     "/addstickers/",
1104                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1105                             Hex.toStringCondensed(packKey),
1106                             StandardCharsets.UTF_8)).toString();
1107         } catch (URISyntaxException e) {
1108             throw new AssertionError(e);
1109         }
1110     }
1111
1112     private SignalServiceStickerManifestUpload getSignalServiceStickerManifestUpload(
1113             final File file
1114     ) throws IOException, StickerPackInvalidException {
1115         ZipFile zip = null;
1116         String rootPath = null;
1117
1118         if (file.getName().endsWith(".zip")) {
1119             zip = new ZipFile(file);
1120         } else if (file.getName().equals("manifest.json")) {
1121             rootPath = file.getParent();
1122         } else {
1123             throw new StickerPackInvalidException("Could not find manifest.json");
1124         }
1125
1126         JsonStickerPack pack = parseStickerPack(rootPath, zip);
1127
1128         if (pack.stickers == null) {
1129             throw new StickerPackInvalidException("Must set a 'stickers' field.");
1130         }
1131
1132         if (pack.stickers.isEmpty()) {
1133             throw new StickerPackInvalidException("Must include stickers.");
1134         }
1135
1136         List<StickerInfo> stickers = new ArrayList<>(pack.stickers.size());
1137         for (JsonStickerPack.JsonSticker sticker : pack.stickers) {
1138             if (sticker.file == null) {
1139                 throw new StickerPackInvalidException("Must set a 'file' field on each sticker.");
1140             }
1141
1142             Pair<InputStream, Long> data;
1143             try {
1144                 data = getInputStreamAndLength(rootPath, zip, sticker.file);
1145             } catch (IOException ignored) {
1146                 throw new StickerPackInvalidException("Could not find find " + sticker.file);
1147             }
1148
1149             String contentType = Utils.getFileMimeType(new File(sticker.file), null);
1150             StickerInfo stickerInfo = new StickerInfo(data.first(),
1151                     data.second(),
1152                     Optional.fromNullable(sticker.emoji).or(""),
1153                     contentType);
1154             stickers.add(stickerInfo);
1155         }
1156
1157         StickerInfo cover = null;
1158         if (pack.cover != null) {
1159             if (pack.cover.file == null) {
1160                 throw new StickerPackInvalidException("Must set a 'file' field on the cover.");
1161             }
1162
1163             Pair<InputStream, Long> data;
1164             try {
1165                 data = getInputStreamAndLength(rootPath, zip, pack.cover.file);
1166             } catch (IOException ignored) {
1167                 throw new StickerPackInvalidException("Could not find find " + pack.cover.file);
1168             }
1169
1170             String contentType = Utils.getFileMimeType(new File(pack.cover.file), null);
1171             cover = new StickerInfo(data.first(),
1172                     data.second(),
1173                     Optional.fromNullable(pack.cover.emoji).or(""),
1174                     contentType);
1175         }
1176
1177         return new SignalServiceStickerManifestUpload(pack.title, pack.author, cover, stickers);
1178     }
1179
1180     private static JsonStickerPack parseStickerPack(String rootPath, ZipFile zip) throws IOException {
1181         InputStream inputStream;
1182         if (zip != null) {
1183             inputStream = zip.getInputStream(zip.getEntry("manifest.json"));
1184         } else {
1185             inputStream = new FileInputStream((new File(rootPath, "manifest.json")));
1186         }
1187         return new ObjectMapper().readValue(inputStream, JsonStickerPack.class);
1188     }
1189
1190     private static Pair<InputStream, Long> getInputStreamAndLength(
1191             final String rootPath, final ZipFile zip, final String subfile
1192     ) throws IOException {
1193         if (zip != null) {
1194             final ZipEntry entry = zip.getEntry(subfile);
1195             return new Pair<>(zip.getInputStream(entry), entry.getSize());
1196         } else {
1197             final File file = new File(rootPath, subfile);
1198             return new Pair<>(new FileInputStream(file), file.length());
1199         }
1200     }
1201
1202     void requestSyncGroups() throws IOException {
1203         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1204                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1205                 .build();
1206         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1207         try {
1208             sendSyncMessage(message);
1209         } catch (UntrustedIdentityException e) {
1210             e.printStackTrace();
1211         }
1212     }
1213
1214     void requestSyncContacts() throws IOException {
1215         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1216                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1217                 .build();
1218         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1219         try {
1220             sendSyncMessage(message);
1221         } catch (UntrustedIdentityException e) {
1222             e.printStackTrace();
1223         }
1224     }
1225
1226     void requestSyncBlocked() throws IOException {
1227         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1228                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1229                 .build();
1230         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1231         try {
1232             sendSyncMessage(message);
1233         } catch (UntrustedIdentityException e) {
1234             e.printStackTrace();
1235         }
1236     }
1237
1238     void requestSyncConfiguration() throws IOException {
1239         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1240                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1241                 .build();
1242         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1243         try {
1244             sendSyncMessage(message);
1245         } catch (UntrustedIdentityException e) {
1246             e.printStackTrace();
1247         }
1248     }
1249
1250     private byte[] getSenderCertificate() {
1251         // TODO support UUID capable sender certificates
1252         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1253         byte[] certificate;
1254         try {
1255             certificate = accountManager.getSenderCertificate();
1256         } catch (IOException e) {
1257             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1258             return null;
1259         }
1260         // TODO cache for a day
1261         return certificate;
1262     }
1263
1264     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1265         SignalServiceMessageSender messageSender = createMessageSender();
1266         try {
1267             messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1268         } catch (UntrustedIdentityException e) {
1269             account.getSignalProtocolStore()
1270                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1271                             e.getIdentityKey(),
1272                             TrustLevel.UNTRUSTED);
1273             throw e;
1274         }
1275     }
1276
1277     private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1278         final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
1279         final Set<SignalServiceAddress> missingUuids = new HashSet<>();
1280
1281         for (String number : numbers) {
1282             final SignalServiceAddress resolvedAddress = canonicalizeAndResolveSignalServiceAddress(number);
1283             if (resolvedAddress.getUuid().isPresent()) {
1284                 signalServiceAddresses.add(resolvedAddress);
1285             } else {
1286                 missingUuids.add(resolvedAddress);
1287             }
1288         }
1289
1290         Map<String, UUID> registeredUsers;
1291         try {
1292             registeredUsers = accountManager.getRegisteredUsers(getIasKeyStore(),
1293                     missingUuids.stream().map(a -> a.getNumber().get()).collect(Collectors.toSet()),
1294                     CDS_MRENCLAVE);
1295         } catch (IOException | Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException e) {
1296             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1297             registeredUsers = new HashMap<>();
1298         }
1299
1300         for (SignalServiceAddress address : missingUuids) {
1301             final String number = address.getNumber().get();
1302             if (registeredUsers.containsKey(number)) {
1303                 final SignalServiceAddress newAddress = resolveSignalServiceAddress(new SignalServiceAddress(
1304                         registeredUsers.get(number),
1305                         number));
1306                 signalServiceAddresses.add(newAddress);
1307             } else {
1308                 signalServiceAddresses.add(address);
1309             }
1310         }
1311
1312         return signalServiceAddresses;
1313     }
1314
1315     private Pair<Long, List<SendMessageResult>> sendMessage(
1316             SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients
1317     ) throws IOException {
1318         recipients = recipients.stream().map(this::resolveSignalServiceAddress).collect(Collectors.toSet());
1319         final long timestamp = System.currentTimeMillis();
1320         messageBuilder.withTimestamp(timestamp);
1321         getOrCreateMessagePipe();
1322         getOrCreateUnidentifiedMessagePipe();
1323         SignalServiceDataMessage message = null;
1324         try {
1325             message = messageBuilder.build();
1326             if (message.getGroupContext().isPresent()) {
1327                 try {
1328                     SignalServiceMessageSender messageSender = createMessageSender();
1329                     final boolean isRecipientUpdate = false;
1330                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients),
1331                             unidentifiedAccessHelper.getAccessFor(recipients),
1332                             isRecipientUpdate,
1333                             message);
1334                     for (SendMessageResult r : result) {
1335                         if (r.getIdentityFailure() != null) {
1336                             account.getSignalProtocolStore()
1337                                     .saveIdentity(r.getAddress(),
1338                                             r.getIdentityFailure().getIdentityKey(),
1339                                             TrustLevel.UNTRUSTED);
1340                         }
1341                     }
1342                     return new Pair<>(timestamp, result);
1343                 } catch (UntrustedIdentityException e) {
1344                     account.getSignalProtocolStore()
1345                             .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1346                                     e.getIdentityKey(),
1347                                     TrustLevel.UNTRUSTED);
1348                     return new Pair<>(timestamp, List.of());
1349                 }
1350             } else {
1351                 // Send to all individually, so sync messages are sent correctly
1352                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1353                 for (SignalServiceAddress address : recipients) {
1354                     ContactInfo contact = account.getContactStore().getContact(address);
1355                     if (contact != null) {
1356                         messageBuilder.withExpiration(contact.messageExpirationTime);
1357                         messageBuilder.withProfileKey(account.getProfileKey().serialize());
1358                     } else {
1359                         messageBuilder.withExpiration(0);
1360                         messageBuilder.withProfileKey(null);
1361                     }
1362                     message = messageBuilder.build();
1363                     if (address.matches(account.getSelfAddress())) {
1364                         results.add(sendSelfMessage(message));
1365                     } else {
1366                         results.add(sendMessage(address, message));
1367                     }
1368                 }
1369                 return new Pair<>(timestamp, results);
1370             }
1371         } finally {
1372             if (message != null && message.isEndSession()) {
1373                 for (SignalServiceAddress recipient : recipients) {
1374                     handleEndSession(recipient);
1375                 }
1376             }
1377             account.save();
1378         }
1379     }
1380
1381     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1382         SignalServiceMessageSender messageSender = createMessageSender();
1383
1384         SignalServiceAddress recipient = account.getSelfAddress();
1385
1386         final Optional<UnidentifiedAccessPair> unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipient);
1387         SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1388                 message.getTimestamp(),
1389                 message,
1390                 message.getExpiresInSeconds(),
1391                 Map.of(recipient, unidentifiedAccess.isPresent()),
1392                 false);
1393         SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1394
1395         try {
1396             long startTime = System.currentTimeMillis();
1397             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1398             return SendMessageResult.success(recipient,
1399                     unidentifiedAccess.isPresent(),
1400                     false,
1401                     System.currentTimeMillis() - startTime);
1402         } catch (UntrustedIdentityException e) {
1403             account.getSignalProtocolStore()
1404                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1405                             e.getIdentityKey(),
1406                             TrustLevel.UNTRUSTED);
1407             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1408         }
1409     }
1410
1411     private SendMessageResult sendMessage(
1412             SignalServiceAddress address, SignalServiceDataMessage message
1413     ) throws IOException {
1414         SignalServiceMessageSender messageSender = createMessageSender();
1415
1416         try {
1417             return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(address), message);
1418         } catch (UntrustedIdentityException e) {
1419             account.getSignalProtocolStore()
1420                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1421                             e.getIdentityKey(),
1422                             TrustLevel.UNTRUSTED);
1423             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1424         }
1425     }
1426
1427     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1428         SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(),
1429                 account.getSignalProtocolStore(),
1430                 certificateValidator);
1431         try {
1432             return cipher.decrypt(envelope);
1433         } catch (ProtocolUntrustedIdentityException e) {
1434             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1435                 org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e
1436                         .getCause();
1437                 account.getSignalProtocolStore()
1438                         .saveIdentity(resolveSignalServiceAddress(identityException.getName()),
1439                                 identityException.getUntrustedIdentity(),
1440                                 TrustLevel.UNTRUSTED);
1441                 throw identityException;
1442             }
1443             throw new AssertionError(e);
1444         }
1445     }
1446
1447     private void handleEndSession(SignalServiceAddress source) {
1448         account.getSignalProtocolStore().deleteAllSessions(source);
1449     }
1450
1451     private static int currentTimeDays() {
1452         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
1453     }
1454
1455     private GroupsV2AuthorizationString getGroupAuthForToday(
1456             final GroupSecretParams groupSecretParams
1457     ) throws IOException {
1458         final int today = currentTimeDays();
1459         // Returns credentials for the next 7 days
1460         final HashMap<Integer, AuthCredentialResponse> credentials = groupsV2Api.getCredentials(today);
1461         // TODO cache credentials until they expire
1462         AuthCredentialResponse authCredentialResponse = credentials.get(today);
1463         try {
1464             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
1465                     today,
1466                     groupSecretParams,
1467                     authCredentialResponse);
1468         } catch (VerificationFailedException e) {
1469             throw new IOException(e);
1470         }
1471     }
1472
1473     private List<HandleAction> handleSignalServiceDataMessage(
1474             SignalServiceDataMessage message,
1475             boolean isSync,
1476             SignalServiceAddress source,
1477             SignalServiceAddress destination,
1478             boolean ignoreAttachments
1479     ) {
1480         List<HandleAction> actions = new ArrayList<>();
1481         if (message.getGroupContext().isPresent()) {
1482             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1483                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1484                 GroupIdV1 groupId = GroupId.v1(groupInfo.getGroupId());
1485                 GroupInfo group = getGroup(groupId);
1486                 if (group == null || group instanceof GroupInfoV1) {
1487                     GroupInfoV1 groupV1 = (GroupInfoV1) group;
1488                     switch (groupInfo.getType()) {
1489                         case UPDATE: {
1490                             if (groupV1 == null) {
1491                                 groupV1 = new GroupInfoV1(groupId);
1492                             }
1493
1494                             if (groupInfo.getAvatar().isPresent()) {
1495                                 SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1496                                 if (avatar.isPointer()) {
1497                                     try {
1498                                         retrieveGroupAvatarAttachment(avatar.asPointer(), groupV1.getGroupId());
1499                                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1500                                         logger.warn("Failed to retrieve avatar for group {}, ignoring: {}",
1501                                                 groupId.toBase64(),
1502                                                 e.getMessage());
1503                                     }
1504                                 }
1505                             }
1506
1507                             if (groupInfo.getName().isPresent()) {
1508                                 groupV1.name = groupInfo.getName().get();
1509                             }
1510
1511                             if (groupInfo.getMembers().isPresent()) {
1512                                 groupV1.addMembers(groupInfo.getMembers()
1513                                         .get()
1514                                         .stream()
1515                                         .map(this::resolveSignalServiceAddress)
1516                                         .collect(Collectors.toSet()));
1517                             }
1518
1519                             account.getGroupStore().updateGroup(groupV1);
1520                             break;
1521                         }
1522                         case DELIVER:
1523                             if (groupV1 == null && !isSync) {
1524                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1525                             }
1526                             break;
1527                         case QUIT: {
1528                             if (groupV1 != null) {
1529                                 groupV1.removeMember(source);
1530                                 account.getGroupStore().updateGroup(groupV1);
1531                             }
1532                             break;
1533                         }
1534                         case REQUEST_INFO:
1535                             if (groupV1 != null && !isSync) {
1536                                 actions.add(new SendGroupUpdateAction(source, groupV1.getGroupId()));
1537                             }
1538                             break;
1539                     }
1540                 } else {
1541                     // Received a group v1 message for a v2 group
1542                 }
1543             }
1544             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1545                 final SignalServiceGroupV2 groupContext = message.getGroupContext().get().getGroupV2().get();
1546                 final GroupMasterKey groupMasterKey = groupContext.getMasterKey();
1547
1548                 getOrMigrateGroup(groupMasterKey,
1549                         groupContext.getRevision(),
1550                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1551             }
1552         }
1553
1554         final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;
1555         if (conversationPartnerAddress != null && message.isEndSession()) {
1556             handleEndSession(conversationPartnerAddress);
1557         }
1558         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1559             if (message.getGroupContext().isPresent()) {
1560                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1561                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1562                     GroupInfoV1 group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1563                     if (group != null) {
1564                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1565                             group.messageExpirationTime = message.getExpiresInSeconds();
1566                             account.getGroupStore().updateGroup(group);
1567                         }
1568                     }
1569                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1570                     // disappearing message timer already stored in the DecryptedGroup
1571                 }
1572             } else if (conversationPartnerAddress != null) {
1573                 ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
1574                 if (contact == null) {
1575                     contact = new ContactInfo(conversationPartnerAddress);
1576                 }
1577                 if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
1578                     contact.messageExpirationTime = message.getExpiresInSeconds();
1579                     account.getContactStore().updateContact(contact);
1580                 }
1581             }
1582         }
1583         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1584             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1585                 if (attachment.isPointer()) {
1586                     try {
1587                         retrieveAttachment(attachment.asPointer());
1588                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1589                         logger.warn("Failed to retrieve attachment ({}), ignoring: {}",
1590                                 attachment.asPointer().getRemoteId(),
1591                                 e.getMessage());
1592                     }
1593                 }
1594             }
1595         }
1596         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1597             final ProfileKey profileKey;
1598             try {
1599                 profileKey = new ProfileKey(message.getProfileKey().get());
1600             } catch (InvalidInputException e) {
1601                 throw new AssertionError(e);
1602             }
1603             if (source.matches(account.getSelfAddress())) {
1604                 this.account.setProfileKey(profileKey);
1605             }
1606             this.account.getProfileStore().storeProfileKey(source, profileKey);
1607         }
1608         if (message.getPreviews().isPresent()) {
1609             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1610             for (SignalServiceDataMessage.Preview preview : previews) {
1611                 if (preview.getImage().isPresent() && preview.getImage().get().isPointer()) {
1612                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
1613                     try {
1614                         retrieveAttachment(attachment);
1615                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1616                         logger.warn("Failed to retrieve preview image ({}), ignoring: {}",
1617                                 attachment.getRemoteId(),
1618                                 e.getMessage());
1619                     }
1620                 }
1621             }
1622         }
1623         if (message.getQuote().isPresent()) {
1624             final SignalServiceDataMessage.Quote quote = message.getQuote().get();
1625
1626             for (SignalServiceDataMessage.Quote.QuotedAttachment quotedAttachment : quote.getAttachments()) {
1627                 final SignalServiceAttachment attachment = quotedAttachment.getThumbnail();
1628                 if (attachment != null && attachment.isPointer()) {
1629                     try {
1630                         retrieveAttachment(attachment.asPointer());
1631                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1632                         logger.warn("Failed to retrieve quote attachment thumbnail ({}), ignoring: {}",
1633                                 attachment.asPointer().getRemoteId(),
1634                                 e.getMessage());
1635                     }
1636                 }
1637             }
1638         }
1639         if (message.getSticker().isPresent()) {
1640             final SignalServiceDataMessage.Sticker messageSticker = message.getSticker().get();
1641             Sticker sticker = account.getStickerStore().getSticker(messageSticker.getPackId());
1642             if (sticker == null) {
1643                 sticker = new Sticker(messageSticker.getPackId(), messageSticker.getPackKey());
1644                 account.getStickerStore().updateSticker(sticker);
1645             }
1646         }
1647         return actions;
1648     }
1649
1650     private GroupInfoV2 getOrMigrateGroup(
1651             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1652     ) {
1653         final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1654
1655         GroupIdV2 groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1656         GroupInfo groupInfo = getGroup(groupId);
1657         final GroupInfoV2 groupInfoV2;
1658         if (groupInfo instanceof GroupInfoV1) {
1659             // Received a v2 group message for a v1 group, we need to locally migrate the group
1660             account.getGroupStore().deleteGroup(groupInfo.getGroupId());
1661             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1662             logger.info("Locally migrated group {} to group v2, id: {}",
1663                     groupInfo.getGroupId().toBase64(),
1664                     groupInfoV2.getGroupId().toBase64());
1665         } else if (groupInfo instanceof GroupInfoV2) {
1666             groupInfoV2 = (GroupInfoV2) groupInfo;
1667         } else {
1668             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1669         }
1670
1671         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1672             DecryptedGroup group = null;
1673             if (signedGroupChange != null
1674                     && groupInfoV2.getGroup() != null
1675                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1676                 group = groupHelper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(), signedGroupChange, groupMasterKey);
1677             }
1678             if (group == null) {
1679                 group = groupHelper.getDecryptedGroup(groupSecretParams);
1680             }
1681             if (group != null) {
1682                 storeProfileKeysFromMembers(group);
1683                 final String avatar = group.getAvatar();
1684                 if (avatar != null && !avatar.isEmpty()) {
1685                     try {
1686                         retrieveGroupAvatar(groupId, groupSecretParams, avatar);
1687                     } catch (IOException e) {
1688                         logger.warn("Failed to download group avatar, ignoring: {}", e.getMessage());
1689                     }
1690                 }
1691             }
1692             groupInfoV2.setGroup(group);
1693             account.getGroupStore().updateGroup(groupInfoV2);
1694         }
1695
1696         return groupInfoV2;
1697     }
1698
1699     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1700         for (DecryptedMember member : group.getMembersList()) {
1701             final SignalServiceAddress address = resolveSignalServiceAddress(new SignalServiceAddress(UuidUtil.parseOrThrow(
1702                     member.getUuid().toByteArray()), null));
1703             try {
1704                 account.getProfileStore()
1705                         .storeProfileKey(address, new ProfileKey(member.getProfileKey().toByteArray()));
1706             } catch (InvalidInputException ignored) {
1707             }
1708         }
1709     }
1710
1711     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1712         for (CachedMessage cachedMessage : account.getMessageCache().getCachedMessages()) {
1713             retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1714         }
1715     }
1716
1717     private void retryFailedReceivedMessage(
1718             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1719     ) {
1720         SignalServiceEnvelope envelope = cachedMessage.loadEnvelope();
1721         if (envelope == null) {
1722             return;
1723         }
1724         SignalServiceContent content = null;
1725         if (!envelope.isReceipt()) {
1726             try {
1727                 content = decryptMessage(envelope);
1728             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1729                 return;
1730             } catch (Exception er) {
1731                 // All other errors are not recoverable, so delete the cached message
1732                 cachedMessage.delete();
1733                 return;
1734             }
1735             List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1736             for (HandleAction action : actions) {
1737                 try {
1738                     action.execute(this);
1739                 } catch (Throwable e) {
1740                     e.printStackTrace();
1741                 }
1742             }
1743         }
1744         account.save();
1745         handler.handleMessage(envelope, content, null);
1746         cachedMessage.delete();
1747     }
1748
1749     public void receiveMessages(
1750             long timeout,
1751             TimeUnit unit,
1752             boolean returnOnTimeout,
1753             boolean ignoreAttachments,
1754             ReceiveMessageHandler handler
1755     ) throws IOException {
1756         retryFailedReceivedMessages(handler, ignoreAttachments);
1757
1758         Set<HandleAction> queuedActions = null;
1759
1760         final SignalServiceMessagePipe messagePipe = getOrCreateMessagePipe();
1761
1762         boolean hasCaughtUpWithOldMessages = false;
1763
1764         while (true) {
1765             SignalServiceEnvelope envelope;
1766             SignalServiceContent content = null;
1767             Exception exception = null;
1768             final CachedMessage[] cachedMessage = {null};
1769             try {
1770                 Optional<SignalServiceEnvelope> result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1771                     // store message on disk, before acknowledging receipt to the server
1772                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1);
1773                 });
1774                 if (result.isPresent()) {
1775                     envelope = result.get();
1776                 } else {
1777                     // Received indicator that server queue is empty
1778                     hasCaughtUpWithOldMessages = true;
1779
1780                     if (queuedActions != null) {
1781                         for (HandleAction action : queuedActions) {
1782                             try {
1783                                 action.execute(this);
1784                             } catch (Throwable e) {
1785                                 e.printStackTrace();
1786                             }
1787                         }
1788                         account.save();
1789                         queuedActions.clear();
1790                         queuedActions = null;
1791                     }
1792
1793                     // Continue to wait another timeout for new messages
1794                     continue;
1795                 }
1796             } catch (TimeoutException e) {
1797                 if (returnOnTimeout) return;
1798                 continue;
1799             } catch (InvalidVersionException e) {
1800                 logger.warn("Error while receiving messages, ignoring: {}", e.getMessage());
1801                 continue;
1802             }
1803
1804             if (envelope.hasSource()) {
1805                 // Store uuid if we don't have it already
1806                 SignalServiceAddress source = envelope.getSourceAddress();
1807                 resolveSignalServiceAddress(source);
1808             }
1809             if (!envelope.isReceipt()) {
1810                 try {
1811                     content = decryptMessage(envelope);
1812                 } catch (Exception e) {
1813                     exception = e;
1814                 }
1815                 List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1816                 if (hasCaughtUpWithOldMessages) {
1817                     for (HandleAction action : actions) {
1818                         try {
1819                             action.execute(this);
1820                         } catch (Throwable e) {
1821                             e.printStackTrace();
1822                         }
1823                     }
1824                 } else {
1825                     if (queuedActions == null) {
1826                         queuedActions = new HashSet<>();
1827                     }
1828                     queuedActions.addAll(actions);
1829                 }
1830             }
1831             account.save();
1832             if (!isMessageBlocked(envelope, content)) {
1833                 handler.handleMessage(envelope, content, exception);
1834             }
1835             if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
1836                 if (cachedMessage[0] != null) {
1837                     cachedMessage[0].delete();
1838                 }
1839             }
1840         }
1841     }
1842
1843     private boolean isMessageBlocked(
1844             SignalServiceEnvelope envelope, SignalServiceContent content
1845     ) {
1846         SignalServiceAddress source;
1847         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1848             source = envelope.getSourceAddress();
1849         } else if (content != null) {
1850             source = content.getSender();
1851         } else {
1852             return false;
1853         }
1854         ContactInfo sourceContact = account.getContactStore().getContact(source);
1855         if (sourceContact != null && sourceContact.blocked) {
1856             return true;
1857         }
1858
1859         if (content != null && content.getDataMessage().isPresent()) {
1860             SignalServiceDataMessage message = content.getDataMessage().get();
1861             if (message.getGroupContext().isPresent()) {
1862                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1863                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1864                     if (groupInfo.getType() != SignalServiceGroup.Type.DELIVER) {
1865                         return false;
1866                     }
1867                 }
1868                 GroupId groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1869                 GroupInfo group = getGroup(groupId);
1870                 if (group != null && group.isBlocked()) {
1871                     return true;
1872                 }
1873             }
1874         }
1875         return false;
1876     }
1877
1878     private List<HandleAction> handleMessage(
1879             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
1880     ) {
1881         List<HandleAction> actions = new ArrayList<>();
1882         if (content != null) {
1883             final SignalServiceAddress sender;
1884             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1885                 sender = envelope.getSourceAddress();
1886             } else {
1887                 sender = content.getSender();
1888             }
1889             // Store uuid if we don't have it already
1890             resolveSignalServiceAddress(sender);
1891
1892             if (content.getDataMessage().isPresent()) {
1893                 SignalServiceDataMessage message = content.getDataMessage().get();
1894
1895                 if (content.isNeedsReceipt()) {
1896                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1897                 }
1898
1899                 actions.addAll(handleSignalServiceDataMessage(message,
1900                         false,
1901                         sender,
1902                         account.getSelfAddress(),
1903                         ignoreAttachments));
1904             }
1905             if (content.getSyncMessage().isPresent()) {
1906                 account.setMultiDevice(true);
1907                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1908                 if (syncMessage.getSent().isPresent()) {
1909                     SentTranscriptMessage message = syncMessage.getSent().get();
1910                     final SignalServiceAddress destination = message.getDestination().orNull();
1911                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
1912                             true,
1913                             sender,
1914                             destination,
1915                             ignoreAttachments));
1916                 }
1917                 if (syncMessage.getRequest().isPresent()) {
1918                     RequestMessage rm = syncMessage.getRequest().get();
1919                     if (rm.isContactsRequest()) {
1920                         actions.add(SendSyncContactsAction.create());
1921                     }
1922                     if (rm.isGroupsRequest()) {
1923                         actions.add(SendSyncGroupsAction.create());
1924                     }
1925                     if (rm.isBlockedListRequest()) {
1926                         actions.add(SendSyncBlockedListAction.create());
1927                     }
1928                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
1929                 }
1930                 if (syncMessage.getGroups().isPresent()) {
1931                     File tmpFile = null;
1932                     try {
1933                         tmpFile = IOUtils.createTempFile();
1934                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups()
1935                                 .get()
1936                                 .asPointer(), tmpFile)) {
1937                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1938                             DeviceGroup g;
1939                             while ((g = s.read()) != null) {
1940                                 GroupInfoV1 syncGroup = account.getGroupStore()
1941                                         .getOrCreateGroupV1(GroupId.v1(g.getId()));
1942                                 if (syncGroup != null) {
1943                                     if (g.getName().isPresent()) {
1944                                         syncGroup.name = g.getName().get();
1945                                     }
1946                                     syncGroup.addMembers(g.getMembers()
1947                                             .stream()
1948                                             .map(this::resolveSignalServiceAddress)
1949                                             .collect(Collectors.toSet()));
1950                                     if (!g.isActive()) {
1951                                         syncGroup.removeMember(account.getSelfAddress());
1952                                     } else {
1953                                         // Add ourself to the member set as it's marked as active
1954                                         syncGroup.addMembers(List.of(account.getSelfAddress()));
1955                                     }
1956                                     syncGroup.blocked = g.isBlocked();
1957                                     if (g.getColor().isPresent()) {
1958                                         syncGroup.color = g.getColor().get();
1959                                     }
1960
1961                                     if (g.getAvatar().isPresent()) {
1962                                         retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.getGroupId());
1963                                     }
1964                                     syncGroup.inboxPosition = g.getInboxPosition().orNull();
1965                                     syncGroup.archived = g.isArchived();
1966                                     account.getGroupStore().updateGroup(syncGroup);
1967                                 }
1968                             }
1969                         }
1970                     } catch (Exception e) {
1971                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
1972                                 tmpFile,
1973                                 e.getMessage());
1974                         e.printStackTrace();
1975                     } finally {
1976                         if (tmpFile != null) {
1977                             try {
1978                                 Files.delete(tmpFile.toPath());
1979                             } catch (IOException e) {
1980                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
1981                                         tmpFile,
1982                                         e.getMessage());
1983                             }
1984                         }
1985                     }
1986                 }
1987                 if (syncMessage.getBlockedList().isPresent()) {
1988                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1989                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1990                         setContactBlocked(resolveSignalServiceAddress(address), true);
1991                     }
1992                     for (GroupId groupId : blockedListMessage.getGroupIds()
1993                             .stream()
1994                             .map(GroupId::unknownVersion)
1995                             .collect(Collectors.toSet())) {
1996                         try {
1997                             setGroupBlocked(groupId, true);
1998                         } catch (GroupNotFoundException e) {
1999                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2000                                     groupId.toBase64());
2001                         }
2002                     }
2003                 }
2004                 if (syncMessage.getContacts().isPresent()) {
2005                     File tmpFile = null;
2006                     try {
2007                         tmpFile = IOUtils.createTempFile();
2008                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
2009                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2010                                 .asPointer(), tmpFile)) {
2011                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
2012                             if (contactsMessage.isComplete()) {
2013                                 account.getContactStore().clear();
2014                             }
2015                             DeviceContact c;
2016                             while ((c = s.read()) != null) {
2017                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2018                                     account.setProfileKey(c.getProfileKey().get());
2019                                 }
2020                                 final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
2021                                 ContactInfo contact = account.getContactStore().getContact(address);
2022                                 if (contact == null) {
2023                                     contact = new ContactInfo(address);
2024                                 }
2025                                 if (c.getName().isPresent()) {
2026                                     contact.name = c.getName().get();
2027                                 }
2028                                 if (c.getColor().isPresent()) {
2029                                     contact.color = c.getColor().get();
2030                                 }
2031                                 if (c.getProfileKey().isPresent()) {
2032                                     account.getProfileStore().storeProfileKey(address, c.getProfileKey().get());
2033                                 }
2034                                 if (c.getVerified().isPresent()) {
2035                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
2036                                     account.getSignalProtocolStore()
2037                                             .setIdentityTrustLevel(verifiedMessage.getDestination(),
2038                                                     verifiedMessage.getIdentityKey(),
2039                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2040                                 }
2041                                 if (c.getExpirationTimer().isPresent()) {
2042                                     contact.messageExpirationTime = c.getExpirationTimer().get();
2043                                 }
2044                                 contact.blocked = c.isBlocked();
2045                                 contact.inboxPosition = c.getInboxPosition().orNull();
2046                                 contact.archived = c.isArchived();
2047                                 account.getContactStore().updateContact(contact);
2048
2049                                 if (c.getAvatar().isPresent()) {
2050                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
2051                                 }
2052                             }
2053                         }
2054                     } catch (Exception e) {
2055                         e.printStackTrace();
2056                     } finally {
2057                         if (tmpFile != null) {
2058                             try {
2059                                 Files.delete(tmpFile.toPath());
2060                             } catch (IOException e) {
2061                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2062                                         tmpFile,
2063                                         e.getMessage());
2064                             }
2065                         }
2066                     }
2067                 }
2068                 if (syncMessage.getVerified().isPresent()) {
2069                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
2070                     account.getSignalProtocolStore()
2071                             .setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()),
2072                                     verifiedMessage.getIdentityKey(),
2073                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2074                 }
2075                 if (syncMessage.getStickerPackOperations().isPresent()) {
2076                     final List<StickerPackOperationMessage> stickerPackOperationMessages = syncMessage.getStickerPackOperations()
2077                             .get();
2078                     for (StickerPackOperationMessage m : stickerPackOperationMessages) {
2079                         if (!m.getPackId().isPresent()) {
2080                             continue;
2081                         }
2082                         Sticker sticker = account.getStickerStore().getSticker(m.getPackId().get());
2083                         if (sticker == null) {
2084                             if (!m.getPackKey().isPresent()) {
2085                                 continue;
2086                             }
2087                             sticker = new Sticker(m.getPackId().get(), m.getPackKey().get());
2088                         }
2089                         sticker.setInstalled(!m.getType().isPresent()
2090                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2091                         account.getStickerStore().updateSticker(sticker);
2092                     }
2093                 }
2094                 if (syncMessage.getConfiguration().isPresent()) {
2095                     // TODO
2096                 }
2097             }
2098         }
2099         return actions;
2100     }
2101
2102     private File getContactAvatarFile(String number) {
2103         return new File(pathConfig.getAvatarsPath(), "contact-" + number);
2104     }
2105
2106     private File retrieveContactAvatarAttachment(
2107             SignalServiceAttachment attachment, String number
2108     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2109         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2110         if (attachment.isPointer()) {
2111             SignalServiceAttachmentPointer pointer = attachment.asPointer();
2112             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
2113         } else {
2114             SignalServiceAttachmentStream stream = attachment.asStream();
2115             return AttachmentUtils.retrieveAttachment(stream, getContactAvatarFile(number));
2116         }
2117     }
2118
2119     private File getGroupAvatarFile(GroupId groupId) {
2120         return new File(pathConfig.getAvatarsPath(), "group-" + groupId.toBase64().replace("/", "_"));
2121     }
2122
2123     private File retrieveGroupAvatarAttachment(
2124             SignalServiceAttachment attachment, GroupId groupId
2125     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2126         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2127         if (attachment.isPointer()) {
2128             SignalServiceAttachmentPointer pointer = attachment.asPointer();
2129             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
2130         } else {
2131             SignalServiceAttachmentStream stream = attachment.asStream();
2132             return AttachmentUtils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
2133         }
2134     }
2135
2136     private File retrieveGroupAvatar(
2137             GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey
2138     ) throws IOException {
2139         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2140         File outputFile = getGroupAvatarFile(groupId);
2141         GroupsV2Operations.GroupOperations groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2142
2143         File tmpFile = IOUtils.createTempFile();
2144         tmpFile.deleteOnExit();
2145         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2146                 tmpFile,
2147                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2148             byte[] encryptedData = IOUtils.readFully(input);
2149
2150             byte[] decryptedData = groupOperations.decryptAvatar(encryptedData);
2151             try (OutputStream output = new FileOutputStream(outputFile)) {
2152                 output.write(decryptedData);
2153             }
2154         } finally {
2155             try {
2156                 Files.delete(tmpFile.toPath());
2157             } catch (IOException e) {
2158                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2159                         tmpFile,
2160                         e.getMessage());
2161             }
2162         }
2163         return outputFile;
2164     }
2165
2166     private File getProfileAvatarFile(SignalServiceAddress address) {
2167         return new File(pathConfig.getAvatarsPath(), "profile-" + address.getLegacyIdentifier());
2168     }
2169
2170     private File retrieveProfileAvatar(
2171             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2172     ) throws IOException {
2173         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2174         File outputFile = getProfileAvatarFile(address);
2175
2176         File tmpFile = IOUtils.createTempFile();
2177         try (InputStream input = messageReceiver.retrieveProfileAvatar(avatarPath,
2178                 tmpFile,
2179                 profileKey,
2180                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2181             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2182             IOUtils.copyStreamToFile(input, outputFile, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2183         } finally {
2184             try {
2185                 Files.delete(tmpFile.toPath());
2186             } catch (IOException e) {
2187                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2188                         tmpFile,
2189                         e.getMessage());
2190             }
2191         }
2192         return outputFile;
2193     }
2194
2195     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2196         return new File(pathConfig.getAttachmentsPath(), attachmentId.toString());
2197     }
2198
2199     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException, MissingConfigurationException {
2200         IOUtils.createPrivateDirectories(pathConfig.getAttachmentsPath());
2201         return retrieveAttachment(pointer, getAttachmentFile(pointer.getRemoteId()), true);
2202     }
2203
2204     private File retrieveAttachment(
2205             SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview
2206     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2207         if (storePreview && pointer.getPreview().isPresent()) {
2208             File previewFile = new File(outputFile + ".preview");
2209             try (OutputStream output = new FileOutputStream(previewFile)) {
2210                 byte[] preview = pointer.getPreview().get();
2211                 output.write(preview, 0, preview.length);
2212             } catch (FileNotFoundException e) {
2213                 e.printStackTrace();
2214                 return null;
2215             }
2216         }
2217
2218         File tmpFile = IOUtils.createTempFile();
2219         try (InputStream input = messageReceiver.retrieveAttachment(pointer,
2220                 tmpFile,
2221                 ServiceConfig.MAX_ATTACHMENT_SIZE)) {
2222             IOUtils.copyStreamToFile(input, outputFile);
2223         } finally {
2224             try {
2225                 Files.delete(tmpFile.toPath());
2226             } catch (IOException e) {
2227                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2228                         tmpFile,
2229                         e.getMessage());
2230             }
2231         }
2232         return outputFile;
2233     }
2234
2235     private InputStream retrieveAttachmentAsStream(
2236             SignalServiceAttachmentPointer pointer, File tmpFile
2237     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2238         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2239     }
2240
2241     void sendGroups() throws IOException, UntrustedIdentityException {
2242         File groupsFile = IOUtils.createTempFile();
2243
2244         try {
2245             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2246                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
2247                 for (GroupInfo record : getGroups()) {
2248                     if (record instanceof GroupInfoV1) {
2249                         GroupInfoV1 groupInfo = (GroupInfoV1) record;
2250                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2251                                 Optional.fromNullable(groupInfo.name),
2252                                 new ArrayList<>(groupInfo.getMembers()),
2253                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2254                                 groupInfo.isMember(account.getSelfAddress()),
2255                                 Optional.of(groupInfo.messageExpirationTime),
2256                                 Optional.fromNullable(groupInfo.color),
2257                                 groupInfo.blocked,
2258                                 Optional.fromNullable(groupInfo.inboxPosition),
2259                                 groupInfo.archived));
2260                     }
2261                 }
2262             }
2263
2264             if (groupsFile.exists() && groupsFile.length() > 0) {
2265                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
2266                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2267                             .withStream(groupsFileStream)
2268                             .withContentType("application/octet-stream")
2269                             .withLength(groupsFile.length())
2270                             .build();
2271
2272                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2273                 }
2274             }
2275         } finally {
2276             try {
2277                 Files.delete(groupsFile.toPath());
2278             } catch (IOException e) {
2279                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2280             }
2281         }
2282     }
2283
2284     public void sendContacts() throws IOException, UntrustedIdentityException {
2285         File contactsFile = IOUtils.createTempFile();
2286
2287         try {
2288             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2289                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
2290                 for (ContactInfo record : account.getContactStore().getContacts()) {
2291                     VerifiedMessage verifiedMessage = null;
2292                     IdentityInfo currentIdentity = account.getSignalProtocolStore().getIdentity(record.getAddress());
2293                     if (currentIdentity != null) {
2294                         verifiedMessage = new VerifiedMessage(record.getAddress(),
2295                                 currentIdentity.getIdentityKey(),
2296                                 currentIdentity.getTrustLevel().toVerifiedState(),
2297                                 currentIdentity.getDateAdded().getTime());
2298                     }
2299
2300                     ProfileKey profileKey = account.getProfileStore().getProfileKey(record.getAddress());
2301                     out.write(new DeviceContact(record.getAddress(),
2302                             Optional.fromNullable(record.name),
2303                             createContactAvatarAttachment(record.number),
2304                             Optional.fromNullable(record.color),
2305                             Optional.fromNullable(verifiedMessage),
2306                             Optional.fromNullable(profileKey),
2307                             record.blocked,
2308                             Optional.of(record.messageExpirationTime),
2309                             Optional.fromNullable(record.inboxPosition),
2310                             record.archived));
2311                 }
2312
2313                 if (account.getProfileKey() != null) {
2314                     // Send our own profile key as well
2315                     out.write(new DeviceContact(account.getSelfAddress(),
2316                             Optional.absent(),
2317                             Optional.absent(),
2318                             Optional.absent(),
2319                             Optional.absent(),
2320                             Optional.of(account.getProfileKey()),
2321                             false,
2322                             Optional.absent(),
2323                             Optional.absent(),
2324                             false));
2325                 }
2326             }
2327
2328             if (contactsFile.exists() && contactsFile.length() > 0) {
2329                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
2330                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2331                             .withStream(contactsFileStream)
2332                             .withContentType("application/octet-stream")
2333                             .withLength(contactsFile.length())
2334                             .build();
2335
2336                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2337                 }
2338             }
2339         } finally {
2340             try {
2341                 Files.delete(contactsFile.toPath());
2342             } catch (IOException e) {
2343                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2344             }
2345         }
2346     }
2347
2348     void sendBlockedList() throws IOException, UntrustedIdentityException {
2349         List<SignalServiceAddress> addresses = new ArrayList<>();
2350         for (ContactInfo record : account.getContactStore().getContacts()) {
2351             if (record.blocked) {
2352                 addresses.add(record.getAddress());
2353             }
2354         }
2355         List<byte[]> groupIds = new ArrayList<>();
2356         for (GroupInfo record : getGroups()) {
2357             if (record.isBlocked()) {
2358                 groupIds.add(record.getGroupId().serialize());
2359             }
2360         }
2361         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2362     }
2363
2364     private void sendVerifiedMessage(
2365             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2366     ) throws IOException, UntrustedIdentityException {
2367         VerifiedMessage verifiedMessage = new VerifiedMessage(destination,
2368                 identityKey,
2369                 trustLevel.toVerifiedState(),
2370                 System.currentTimeMillis());
2371         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2372     }
2373
2374     public List<ContactInfo> getContacts() {
2375         return account.getContactStore().getContacts();
2376     }
2377
2378     public ContactInfo getContact(String number) {
2379         return account.getContactStore().getContact(Utils.getSignalServiceAddressFromIdentifier(number));
2380     }
2381
2382     public GroupInfo getGroup(GroupId groupId) {
2383         final GroupInfo group = account.getGroupStore().getGroup(groupId);
2384         if (group instanceof GroupInfoV2 && ((GroupInfoV2) group).getGroup() == null) {
2385             final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2386             ((GroupInfoV2) group).setGroup(groupHelper.getDecryptedGroup(groupSecretParams));
2387             account.getGroupStore().updateGroup(group);
2388         }
2389         return group;
2390     }
2391
2392     public List<IdentityInfo> getIdentities() {
2393         return account.getSignalProtocolStore().getIdentities();
2394     }
2395
2396     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2397         return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));
2398     }
2399
2400     /**
2401      * Trust this the identity with this fingerprint
2402      *
2403      * @param name        username of the identity
2404      * @param fingerprint Fingerprint
2405      */
2406     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2407         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2408         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2409         if (ids == null) {
2410             return false;
2411         }
2412         for (IdentityInfo id : ids) {
2413             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
2414                 continue;
2415             }
2416
2417             account.getSignalProtocolStore()
2418                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2419             try {
2420                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2421             } catch (IOException | UntrustedIdentityException e) {
2422                 e.printStackTrace();
2423             }
2424             account.save();
2425             return true;
2426         }
2427         return false;
2428     }
2429
2430     /**
2431      * Trust this the identity with this safety number
2432      *
2433      * @param name         username of the identity
2434      * @param safetyNumber Safety number
2435      */
2436     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2437         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2438         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2439         if (ids == null) {
2440             return false;
2441         }
2442         for (IdentityInfo id : ids) {
2443             if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {
2444                 continue;
2445             }
2446
2447             account.getSignalProtocolStore()
2448                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2449             try {
2450                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2451             } catch (IOException | UntrustedIdentityException e) {
2452                 e.printStackTrace();
2453             }
2454             account.save();
2455             return true;
2456         }
2457         return false;
2458     }
2459
2460     /**
2461      * Trust all keys of this identity without verification
2462      *
2463      * @param name username of the identity
2464      */
2465     public boolean trustIdentityAllKeys(String name) {
2466         SignalServiceAddress address = resolveSignalServiceAddress(name);
2467         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2468         if (ids == null) {
2469             return false;
2470         }
2471         for (IdentityInfo id : ids) {
2472             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2473                 account.getSignalProtocolStore()
2474                         .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2475                 try {
2476                     sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2477                 } catch (IOException | UntrustedIdentityException e) {
2478                     e.printStackTrace();
2479                 }
2480             }
2481         }
2482         account.save();
2483         return true;
2484     }
2485
2486     public String computeSafetyNumber(
2487             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2488     ) {
2489         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2490                 account.getSelfAddress(),
2491                 getIdentityKeyPair().getPublicKey(),
2492                 theirAddress,
2493                 theirIdentityKey);
2494     }
2495
2496     void saveAccount() {
2497         account.save();
2498     }
2499
2500     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2501         String canonicalizedNumber = UuidUtil.isUuid(identifier)
2502                 ? identifier
2503                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2504         return resolveSignalServiceAddress(canonicalizedNumber);
2505     }
2506
2507     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2508         SignalServiceAddress address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2509
2510         return resolveSignalServiceAddress(address);
2511     }
2512
2513     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2514         if (address.matches(account.getSelfAddress())) {
2515             return account.getSelfAddress();
2516         }
2517
2518         return account.getRecipientStore().resolveServiceAddress(address);
2519     }
2520
2521     @Override
2522     public void close() throws IOException {
2523         close(true);
2524     }
2525
2526     void close(boolean closeAccount) throws IOException {
2527         if (messagePipe != null) {
2528             messagePipe.shutdown();
2529             messagePipe = null;
2530         }
2531
2532         if (unidentifiedMessagePipe != null) {
2533             unidentifiedMessagePipe.shutdown();
2534             unidentifiedMessagePipe = null;
2535         }
2536
2537         if (closeAccount && account != null) {
2538             account.close();
2539         }
2540         account = null;
2541     }
2542
2543     public interface ReceiveMessageHandler {
2544
2545         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2546     }
2547 }