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.ECPublicKey;
  78 import org.whispersystems.libsignal.state.PreKeyRecord;
  79 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  80 import org.whispersystems.libsignal.util.Pair;
  81 import org.whispersystems.libsignal.util.guava.Optional;
  82 import org.whispersystems.signalservice.api.KeyBackupService;
  83 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  84 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  85 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  86 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  87 import org.whispersystems.signalservice.api.crypto.InvalidCiphertextException;
  88 import org.whispersystems.signalservice.api.crypto.ProfileCipher;
  89 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  90 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
  91 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  92 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  93 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  94 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
  95 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  96 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  97 import org.whispersystems.signalservice.api.kbs.MasterKey;
  98 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  99 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
 100 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
 101 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 104 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 105 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 106 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 107 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 108 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 109 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload;
 110 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload.StickerInfo;
 111 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 112 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 113 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 114 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 115 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 116 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 117 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 118 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 119 import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
 120 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 121 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 122 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 123 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 124 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 125 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 126 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 127 import org.whispersystems.signalservice.api.push.ContactTokenDetails;
 128 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 129 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 130 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 131 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 132 import org.whispersystems.signalservice.api.util.SleepTimer;
 133 import org.whispersystems.signalservice.api.util.StreamDetails;
 134 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 135 import org.whispersystems.signalservice.api.util.UuidUtil;
 136 import org.whispersystems.signalservice.internal.configuration.SignalServiceConfiguration;
 137 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 138 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 139 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 140 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 141 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 142 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 143 import org.whispersystems.signalservice.internal.util.Hex;
 144 import org.whispersystems.util.Base64;
 145
 146 import java.io.Closeable;
 147 import java.io.File;
 148 import java.io.FileInputStream;
 149 import java.io.FileOutputStream;
 150 import java.io.IOException;
 151 import java.io.InputStream;
 152 import java.io.OutputStream;
 153 import java.net.URI;
 154 import java.net.URISyntaxException;
 155 import java.net.URLEncoder;
 156 import java.nio.charset.StandardCharsets;
 157 import java.nio.file.Files;
 158 import java.security.SignatureException;
 159 import java.util.ArrayList;
 160 import java.util.Arrays;
 161 import java.util.Collection;
 162 import java.util.Date;
 163 import java.util.HashMap;
 164 import java.util.HashSet;
 165 import java.util.List;
 166 import java.util.Map;
 167 import java.util.Set;
 168 import java.util.UUID;
 169 import java.util.concurrent.ExecutorService;
 170 import java.util.concurrent.TimeUnit;
 171 import java.util.concurrent.TimeoutException;
 172 import java.util.stream.Collectors;
 173 import java.util.zip.ZipEntry;
 174 import java.util.zip.ZipFile;
 175
 176 import static org.asamk.signal.manager.ServiceConfig.CDS_MRENCLAVE;
 177 import static org.asamk.signal.manager.ServiceConfig.capabilities;
 178 import static org.asamk.signal.manager.ServiceConfig.getIasKeyStore;
 179
 180 public class Manager implements Closeable {
 181
 182     private final static Logger logger = LoggerFactory.getLogger(Manager.class);
 183
 184     private final CertificateValidator certificateValidator = new CertificateValidator(ServiceConfig.getUnidentifiedSenderTrustRoot());
 185
 186     private final SignalServiceConfiguration serviceConfiguration;
 187     private final String userAgent;
 188
 189     private SignalAccount account;
 190     private final SignalServiceAccountManager accountManager;
 191     private final GroupsV2Api groupsV2Api;
 192     private final GroupsV2Operations groupsV2Operations;
 193     private final SignalServiceMessageReceiver messageReceiver;
 194     private final ClientZkProfileOperations clientZkProfileOperations;
 195
 196     private SignalServiceMessagePipe messagePipe = null;
 197     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 198
 199     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 200     private final ProfileHelper profileHelper;
 201     private final GroupHelper groupHelper;
 202     private final PinHelper pinHelper;
 203     private final AvatarStore avatarStore;
 204     private final AttachmentStore attachmentStore;
 205
 206     Manager(
 207             SignalAccount account,
 208             PathConfig pathConfig,
 209             SignalServiceConfiguration serviceConfiguration,
 210             String userAgent
 211     ) {
 212         this.account = account;
 213         this.serviceConfiguration = serviceConfiguration;
 214         this.userAgent = userAgent;
 215         this.groupsV2Operations = capabilities.isGv2() ? new GroupsV2Operations(ClientZkOperations.create(
 216                 serviceConfiguration)) : null;
 217         final SleepTimer timer = new UptimeSleepTimer();
 218         this.accountManager = new SignalServiceAccountManager(serviceConfiguration,
 219                 new DynamicCredentialsProvider(account.getUuid(),
 220                         account.getUsername(),
 221                         account.getPassword(),
 222                         account.getSignalingKey(),
 223                         account.getDeviceId()),
 224                 userAgent,
 225                 groupsV2Operations,
 226                 timer);
 227         this.groupsV2Api = accountManager.getGroupsV2Api();
 228         final KeyBackupService keyBackupService = ServiceConfig.createKeyBackupService(accountManager);
 229         this.pinHelper = new PinHelper(keyBackupService);
 230         this.clientZkProfileOperations = capabilities.isGv2() ? ClientZkOperations.create(serviceConfiguration)
 231                 .getProfileOperations() : null;
 232         this.messageReceiver = new SignalServiceMessageReceiver(serviceConfiguration,
 233                 account.getUuid(),
 234                 account.getUsername(),
 235                 account.getPassword(),
 236                 account.getDeviceId(),
 237                 account.getSignalingKey(),
 238                 userAgent,
 239                 null,
 240                 timer,
 241                 clientZkProfileOperations);
 242
 243         this.account.setResolver(this::resolveSignalServiceAddress);
 244
 245         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 246                 account.getProfileStore()::getProfileKey,
 247                 this::getRecipientProfile,
 248                 this::getSenderCertificate);
 249         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 250                 unidentifiedAccessHelper::getAccessFor,
 251                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 252                 () -> messageReceiver);
 253         this.groupHelper = new GroupHelper(this::getRecipientProfileKeyCredential,
 254                 this::getRecipientProfile,
 255                 account::getSelfAddress,
 256                 groupsV2Operations,
 257                 groupsV2Api,
 258                 this::getGroupAuthForToday);
 259         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 260         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 261     }
 262
 263     public String getUsername() {
 264         return account.getUsername();
 265     }
 266
 267     public SignalServiceAddress getSelfAddress() {
 268         return account.getSelfAddress();
 269     }
 270
 271     private IdentityKeyPair getIdentityKeyPair() {
 272         return account.getSignalProtocolStore().getIdentityKeyPair();
 273     }
 274
 275     public int getDeviceId() {
 276         return account.getDeviceId();
 277     }
 278
 279     public static Manager init(
 280             String username, File settingsPath, SignalServiceConfiguration serviceConfiguration, String userAgent
 281     ) throws IOException, NotRegisteredException {
 282         PathConfig pathConfig = PathConfig.createDefault(settingsPath);
 283
 284         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 285             throw new NotRegisteredException();
 286         }
 287
 288         SignalAccount account = SignalAccount.load(pathConfig.getDataPath(), username);
 289
 290         if (!account.isRegistered()) {
 291             throw new NotRegisteredException();
 292         }
 293
 294         return new Manager(account, pathConfig, serviceConfiguration, userAgent);
 295     }
 296
 297     public void checkAccountState() throws IOException {
 298         if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 299             refreshPreKeys();
 300             account.save();
 301         }
 302         if (account.getUuid() == null) {
 303             account.setUuid(accountManager.getOwnUuid());
 304             account.save();
 305         }
 306         updateAccountAttributes();
 307     }
 308
 309     /**
 310      * This is used for checking a set of phone numbers for registration on Signal
 311      *
 312      * @param numbers The set of phone number in question
 313      * @return A map of numbers to booleans. True if registered, false otherwise. Should never be null
 314      * @throws IOException if its unable to get the contacts to check if they're registered
 315      */
 316     public Map<String, Boolean> areUsersRegistered(Set<String> numbers) throws IOException {
 317         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 318         List<ContactTokenDetails> contactDetails = this.accountManager.getContacts(numbers);
 319
 320         Set<String> registeredUsers = contactDetails.stream()
 321                 .map(ContactTokenDetails::getNumber)
 322                 .collect(Collectors.toSet());
 323
 324         return numbers.stream().collect(Collectors.toMap(x -> x, registeredUsers::contains));
 325     }
 326
 327     public void updateAccountAttributes() throws IOException {
 328         accountManager.setAccountAttributes(account.getSignalingKey(),
 329                 account.getSignalProtocolStore().getLocalRegistrationId(),
 330                 true,
 331                 // set legacy pin only if no KBS master key is set
 332                 account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 333                 account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 334                 account.getSelfUnidentifiedAccessKey(),
 335                 account.isUnrestrictedUnidentifiedAccess(),
 336                 capabilities,
 337                 account.isDiscoverableByPhoneNumber());
 338     }
 339
 340     /**
 341      * @param avatar if avatar is null the image from the local avatar store is used (if present),
 342      *               if it's Optional.absent(), the avatar will be removed
 343      */
 344     public void setProfile(String name, Optional<File> avatar) throws IOException {
 345         try (final StreamDetails streamDetails = avatar == null
 346                 ? avatarStore.retrieveProfileAvatar(getSelfAddress())
 347                 : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 348             accountManager.setVersionedProfile(account.getUuid(), account.getProfileKey(), name, streamDetails);
 349         }
 350
 351         if (avatar != null) {
 352             if (avatar.isPresent()) {
 353                 avatarStore.storeProfileAvatar(getSelfAddress(),
 354                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 355             } else {
 356                 avatarStore.deleteProfileAvatar(getSelfAddress());
 357             }
 358         }
 359     }
 360
 361     public void unregister() throws IOException {
 362         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 363         // If this is the master device, other users can't send messages to this number anymore.
 364         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 365         accountManager.setGcmId(Optional.absent());
 366
 367         account.setRegistered(false);
 368         account.save();
 369     }
 370
 371     public List<DeviceInfo> getLinkedDevices() throws IOException {
 372         List<DeviceInfo> devices = accountManager.getDevices();
 373         account.setMultiDevice(devices.size() > 1);
 374         account.save();
 375         return devices;
 376     }
 377
 378     public void removeLinkedDevices(int deviceId) throws IOException {
 379         accountManager.removeDevice(deviceId);
 380         List<DeviceInfo> devices = accountManager.getDevices();
 381         account.setMultiDevice(devices.size() > 1);
 382         account.save();
 383     }
 384
 385     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 386         DeviceLinkInfo info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 387
 388         addDevice(info.deviceIdentifier, info.deviceKey);
 389     }
 390
 391     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 392         IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 393         String verificationCode = accountManager.getNewDeviceVerificationCode();
 394
 395         accountManager.addDevice(deviceIdentifier,
 396                 deviceKey,
 397                 identityKeyPair,
 398                 Optional.of(account.getProfileKey().serialize()),
 399                 verificationCode);
 400         account.setMultiDevice(true);
 401         account.save();
 402     }
 403
 404     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 405         if (pin.isPresent()) {
 406             final MasterKey masterKey = account.getPinMasterKey() != null
 407                     ? account.getPinMasterKey()
 408                     : KeyUtils.createMasterKey();
 409
 410             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 411
 412             account.setRegistrationLockPin(pin.get());
 413             account.setPinMasterKey(masterKey);
 414         } else {
 415             // Remove legacy registration lock
 416             accountManager.removeRegistrationLockV1();
 417
 418             // Remove KBS Pin
 419             pinHelper.removeRegistrationLockPin();
 420
 421             account.setRegistrationLockPin(null);
 422             account.setPinMasterKey(null);
 423         }
 424         account.save();
 425     }
 426
 427     void refreshPreKeys() throws IOException {
 428         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 429         final IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 430         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 431
 432         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 433     }
 434
 435     private List<PreKeyRecord> generatePreKeys() {
 436         final int offset = account.getPreKeyIdOffset();
 437
 438         List<PreKeyRecord> records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 439         account.addPreKeys(records);
 440         account.save();
 441
 442         return records;
 443     }
 444
 445     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 446         final int signedPreKeyId = account.getNextSignedPreKeyId();
 447
 448         SignedPreKeyRecord record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 449         account.addSignedPreKey(record);
 450         account.save();
 451
 452         return record;
 453     }
 454
 455     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 456         if (messagePipe == null) {
 457             messagePipe = messageReceiver.createMessagePipe();
 458         }
 459         return messagePipe;
 460     }
 461
 462     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 463         if (unidentifiedMessagePipe == null) {
 464             unidentifiedMessagePipe = messageReceiver.createUnidentifiedMessagePipe();
 465         }
 466         return unidentifiedMessagePipe;
 467     }
 468
 469     private SignalServiceMessageSender createMessageSender() {
 470         final ExecutorService executor = null;
 471         return new SignalServiceMessageSender(serviceConfiguration,
 472                 account.getUuid(),
 473                 account.getUsername(),
 474                 account.getPassword(),
 475                 account.getDeviceId(),
 476                 account.getSignalProtocolStore(),
 477                 userAgent,
 478                 account.isMultiDevice(),
 479                 Optional.fromNullable(messagePipe),
 480                 Optional.fromNullable(unidentifiedMessagePipe),
 481                 Optional.absent(),
 482                 clientZkProfileOperations,
 483                 executor,
 484                 ServiceConfig.MAX_ENVELOPE_SIZE);
 485     }
 486
 487     private SignalProfile getRecipientProfile(
 488             SignalServiceAddress address
 489     ) {
 490         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
 491         if (profileEntry == null) {
 492             return null;
 493         }
 494         long now = new Date().getTime();
 495         // Profiles are cache for 24h before retrieving them again
 496         if (!profileEntry.isRequestPending() && (
 497                 profileEntry.getProfile() == null || now - profileEntry.getLastUpdateTimestamp() > 24 * 60 * 60 * 1000
 498         )) {
 499             profileEntry.setRequestPending(true);
 500             final SignalServiceProfile encryptedProfile;
 501             try {
 502                 encryptedProfile = profileHelper.retrieveProfileSync(address, SignalServiceProfile.RequestType.PROFILE)
 503                         .getProfile();
 504             } catch (IOException e) {
 505                 logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 506                 return null;
 507             } finally {
 508                 profileEntry.setRequestPending(false);
 509             }
 510
 511             ProfileKey profileKey = profileEntry.getProfileKey();
 512             SignalProfile profile = decryptProfile(address, profileKey, encryptedProfile);
 513             account.getProfileStore()
 514                     .updateProfile(address, profileKey, now, profile, profileEntry.getProfileKeyCredential());
 515             return profile;
 516         }
 517         return profileEntry.getProfile();
 518     }
 519
 520     private ProfileKeyCredential getRecipientProfileKeyCredential(SignalServiceAddress address) {
 521         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
 522         if (profileEntry == null) {
 523             return null;
 524         }
 525         if (profileEntry.getProfileKeyCredential() == null) {
 526             ProfileAndCredential profileAndCredential;
 527             try {
 528                 profileAndCredential = profileHelper.retrieveProfileSync(address,
 529                         SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 530             } catch (IOException e) {
 531                 logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 532                 return null;
 533             }
 534
 535             long now = new Date().getTime();
 536             final ProfileKeyCredential profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 537             final SignalProfile profile = decryptProfile(address,
 538                     profileEntry.getProfileKey(),
 539                     profileAndCredential.getProfile());
 540             account.getProfileStore()
 541                     .updateProfile(address, profileEntry.getProfileKey(), now, profile, profileKeyCredential);
 542             return profileKeyCredential;
 543         }
 544         return profileEntry.getProfileKeyCredential();
 545     }
 546
 547     private SignalProfile decryptProfile(
 548             final SignalServiceAddress address, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 549     ) {
 550         if (encryptedProfile.getAvatar() != null) {
 551             downloadProfileAvatar(address, encryptedProfile.getAvatar(), profileKey);
 552         }
 553
 554         ProfileCipher profileCipher = new ProfileCipher(profileKey);
 555         try {
 556             String name;
 557             try {
 558                 name = encryptedProfile.getName() == null
 559                         ? null
 560                         : new String(profileCipher.decryptName(Base64.decode(encryptedProfile.getName())));
 561             } catch (IOException e) {
 562                 name = null;
 563             }
 564             String unidentifiedAccess;
 565             try {
 566                 unidentifiedAccess = encryptedProfile.getUnidentifiedAccess() == null
 567                         || !profileCipher.verifyUnidentifiedAccess(Base64.decode(encryptedProfile.getUnidentifiedAccess()))
 568                         ? null
 569                         : encryptedProfile.getUnidentifiedAccess();
 570             } catch (IOException e) {
 571                 unidentifiedAccess = null;
 572             }
 573             return new SignalProfile(encryptedProfile.getIdentityKey(),
 574                     name,
 575                     unidentifiedAccess,
 576                     encryptedProfile.isUnrestrictedUnidentifiedAccess(),
 577                     encryptedProfile.getCapabilities());
 578         } catch (InvalidCiphertextException e) {
 579             return null;
 580         }
 581     }
 582
 583     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 584         final StreamDetails streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 585         if (streamDetails == null) {
 586             return Optional.absent();
 587         }
 588
 589         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 590     }
 591
 592     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 593         final StreamDetails streamDetails = avatarStore.retrieveContactAvatar(address);
 594         if (streamDetails == null) {
 595             return Optional.absent();
 596         }
 597
 598         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 599     }
 600
 601     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 602         GroupInfo g = getGroup(groupId);
 603         if (g == null) {
 604             throw new GroupNotFoundException(groupId);
 605         }
 606         if (!g.isMember(account.getSelfAddress())) {
 607             throw new NotAGroupMemberException(groupId, g.getTitle());
 608         }
 609         return g;
 610     }
 611
 612     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 613         GroupInfo g = getGroup(groupId);
 614         if (g == null) {
 615             throw new GroupNotFoundException(groupId);
 616         }
 617         if (!g.isMember(account.getSelfAddress()) && !g.isPendingMember(account.getSelfAddress())) {
 618             throw new NotAGroupMemberException(groupId, g.getTitle());
 619         }
 620         return g;
 621     }
 622
 623     public List<GroupInfo> getGroups() {
 624         return account.getGroupStore().getGroups();
 625     }
 626
 627     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 628             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 629     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 630         final GroupInfo g = getGroupForSending(groupId);
 631
 632         GroupUtils.setGroupContext(messageBuilder, g);
 633         messageBuilder.withExpiration(g.getMessageExpirationTime());
 634
 635         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 636     }
 637
 638     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 639             String messageText, List<String> attachments, GroupId groupId
 640     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 641         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 642                 .withBody(messageText);
 643         if (attachments != null) {
 644             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 645         }
 646
 647         return sendGroupMessage(messageBuilder, groupId);
 648     }
 649
 650     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 651             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 652     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 653         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
 654                 remove,
 655                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
 656                 targetSentTimestamp);
 657         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 658                 .withReaction(reaction);
 659
 660         return sendGroupMessage(messageBuilder, groupId);
 661     }
 662
 663     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(GroupId groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 664
 665         SignalServiceDataMessage.Builder messageBuilder;
 666
 667         final GroupInfo g = getGroupForUpdating(groupId);
 668         if (g instanceof GroupInfoV1) {
 669             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
 670             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 671                     .withId(groupId.serialize())
 672                     .build();
 673             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 674             groupInfoV1.removeMember(account.getSelfAddress());
 675             account.getGroupStore().updateGroup(groupInfoV1);
 676         } else {
 677             final GroupInfoV2 groupInfoV2 = (GroupInfoV2) g;
 678             final Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.leaveGroup(groupInfoV2);
 679             groupInfoV2.setGroup(groupGroupChangePair.first());
 680             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 681             account.getGroupStore().updateGroup(groupInfoV2);
 682         }
 683
 684         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 685     }
 686
 687     private Pair<GroupId, List<SendMessageResult>> sendUpdateGroupMessage(
 688             GroupId groupId, String name, Collection<SignalServiceAddress> members, File avatarFile
 689     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 690         GroupInfo g;
 691         SignalServiceDataMessage.Builder messageBuilder;
 692         if (groupId == null) {
 693             // Create new group
 694             GroupInfoV2 gv2 = groupHelper.createGroupV2(name == null ? "" : name,
 695                     members == null ? List.of() : members,
 696                     avatarFile);
 697             if (gv2 == null) {
 698                 GroupInfoV1 gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 699                 gv1.addMembers(List.of(account.getSelfAddress()));
 700                 updateGroupV1(gv1, name, members, avatarFile);
 701                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 702                 g = gv1;
 703             } else {
 704                 if (avatarFile != null) {
 705                     avatarStore.storeGroupAvatar(gv2.getGroupId(),
 706                             outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 707                 }
 708                 messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 709                 g = gv2;
 710             }
 711         } else {
 712             GroupInfo group = getGroupForUpdating(groupId);
 713             if (group instanceof GroupInfoV2) {
 714                 final GroupInfoV2 groupInfoV2 = (GroupInfoV2) group;
 715
 716                 Pair<Long, List<SendMessageResult>> result = null;
 717                 if (groupInfoV2.isPendingMember(getSelfAddress())) {
 718                     Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.acceptInvite(groupInfoV2);
 719                     result = sendUpdateGroupMessage(groupInfoV2,
 720                             groupGroupChangePair.first(),
 721                             groupGroupChangePair.second());
 722                 }
 723
 724                 if (members != null) {
 725                     final Set<SignalServiceAddress> newMembers = new HashSet<>(members);
 726                     newMembers.removeAll(group.getMembers()
 727                             .stream()
 728                             .map(this::resolveSignalServiceAddress)
 729                             .collect(Collectors.toSet()));
 730                     if (newMembers.size() > 0) {
 731                         Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2,
 732                                 newMembers);
 733                         result = sendUpdateGroupMessage(groupInfoV2,
 734                                 groupGroupChangePair.first(),
 735                                 groupGroupChangePair.second());
 736                     }
 737                 }
 738                 if (result == null || name != null || avatarFile != null) {
 739                     Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2,
 740                             name,
 741                             avatarFile);
 742                     if (avatarFile != null) {
 743                         avatarStore.storeGroupAvatar(groupInfoV2.getGroupId(),
 744                                 outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 745                     }
 746                     result = sendUpdateGroupMessage(groupInfoV2,
 747                             groupGroupChangePair.first(),
 748                             groupGroupChangePair.second());
 749                 }
 750
 751                 return new Pair<>(group.getGroupId(), result.second());
 752             } else {
 753                 GroupInfoV1 gv1 = (GroupInfoV1) group;
 754                 updateGroupV1(gv1, name, members, avatarFile);
 755                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 756                 g = gv1;
 757             }
 758         }
 759
 760         account.getGroupStore().updateGroup(g);
 761
 762         final Pair<Long, List<SendMessageResult>> result = sendMessage(messageBuilder,
 763                 g.getMembersIncludingPendingWithout(account.getSelfAddress()));
 764         return new Pair<>(g.getGroupId(), result.second());
 765     }
 766
 767     public Pair<GroupId, List<SendMessageResult>> joinGroup(
 768             GroupInviteLinkUrl inviteLinkUrl
 769     ) throws IOException, GroupLinkNotActiveException {
 770         return sendJoinGroupMessage(inviteLinkUrl);
 771     }
 772
 773     private Pair<GroupId, List<SendMessageResult>> sendJoinGroupMessage(
 774             GroupInviteLinkUrl inviteLinkUrl
 775     ) throws IOException, GroupLinkNotActiveException {
 776         final DecryptedGroupJoinInfo groupJoinInfo = groupHelper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
 777                 inviteLinkUrl.getPassword());
 778         final GroupChange groupChange = groupHelper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
 779                 inviteLinkUrl.getPassword(),
 780                 groupJoinInfo);
 781         final GroupInfoV2 group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
 782                 groupJoinInfo.getRevision() + 1,
 783                 groupChange.toByteArray());
 784
 785         if (group.getGroup() == null) {
 786             // Only requested member, can't send update to group members
 787             return new Pair<>(group.getGroupId(), List.of());
 788         }
 789
 790         final Pair<Long, List<SendMessageResult>> result = sendUpdateGroupMessage(group, group.getGroup(), groupChange);
 791
 792         return new Pair<>(group.getGroupId(), result.second());
 793     }
 794
 795     private Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 796             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
 797     ) throws IOException {
 798         group.setGroup(newDecryptedGroup);
 799         final SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(group,
 800                 groupChange.toByteArray());
 801         account.getGroupStore().updateGroup(group);
 802         return sendMessage(messageBuilder, group.getMembersIncludingPendingWithout(account.getSelfAddress()));
 803     }
 804
 805     private void updateGroupV1(
 806             final GroupInfoV1 g,
 807             final String name,
 808             final Collection<SignalServiceAddress> members,
 809             final File avatarFile
 810     ) throws IOException {
 811         if (name != null) {
 812             g.name = name;
 813         }
 814
 815         if (members != null) {
 816             final Set<String> newE164Members = new HashSet<>();
 817             for (SignalServiceAddress member : members) {
 818                 if (g.isMember(member) || !member.getNumber().isPresent()) {
 819                     continue;
 820                 }
 821                 newE164Members.add(member.getNumber().get());
 822             }
 823
 824             final List<ContactTokenDetails> contacts = accountManager.getContacts(newE164Members);
 825             if (contacts.size() != newE164Members.size()) {
 826                 // Some of the new members are not registered on Signal
 827                 for (ContactTokenDetails contact : contacts) {
 828                     newE164Members.remove(contact.getNumber());
 829                 }
 830                 throw new IOException("Failed to add members "
 831                         + String.join(", ", newE164Members)
 832                         + " to group: Not registered on Signal");
 833             }
 834
 835             g.addMembers(members);
 836         }
 837
 838         if (avatarFile != null) {
 839             avatarStore.storeGroupAvatar(g.getGroupId(),
 840                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 841         }
 842     }
 843
 844     Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 845             GroupIdV1 groupId, SignalServiceAddress recipient
 846     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 847         GroupInfoV1 g;
 848         GroupInfo group = getGroupForSending(groupId);
 849         if (!(group instanceof GroupInfoV1)) {
 850             throw new RuntimeException("Received an invalid group request for a v2 group!");
 851         }
 852         g = (GroupInfoV1) group;
 853
 854         if (!g.isMember(recipient)) {
 855             throw new NotAGroupMemberException(groupId, g.name);
 856         }
 857
 858         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 859
 860         // Send group message only to the recipient who requested it
 861         return sendMessage(messageBuilder, List.of(recipient));
 862     }
 863
 864     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 865         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 866                 .withId(g.getGroupId().serialize())
 867                 .withName(g.name)
 868                 .withMembers(new ArrayList<>(g.getMembers()));
 869
 870         try {
 871             final Optional<SignalServiceAttachmentStream> attachment = createGroupAvatarAttachment(g.getGroupId());
 872             if (attachment.isPresent()) {
 873                 group.withAvatar(attachment.get());
 874             }
 875         } catch (IOException e) {
 876             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
 877         }
 878
 879         return SignalServiceDataMessage.newBuilder()
 880                 .asGroupMessage(group.build())
 881                 .withExpiration(g.getMessageExpirationTime());
 882     }
 883
 884     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
 885         SignalServiceGroupV2.Builder group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
 886                 .withRevision(g.getGroup().getRevision())
 887                 .withSignedGroupChange(signedGroupChange);
 888         return SignalServiceDataMessage.newBuilder()
 889                 .asGroupMessage(group.build())
 890                 .withExpiration(g.getMessageExpirationTime());
 891     }
 892
 893     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
 894             GroupIdV1 groupId, SignalServiceAddress recipient
 895     ) throws IOException {
 896         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 897                 .withId(groupId.serialize());
 898
 899         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 900                 .asGroupMessage(group.build());
 901
 902         // Send group info request message to the recipient who sent us a message with this groupId
 903         return sendMessage(messageBuilder, List.of(recipient));
 904     }
 905
 906     void sendReceipt(
 907             SignalServiceAddress remoteAddress, long messageId
 908     ) throws IOException, UntrustedIdentityException {
 909         SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
 910                 List.of(messageId),
 911                 System.currentTimeMillis());
 912
 913         createMessageSender().sendReceipt(remoteAddress,
 914                 unidentifiedAccessHelper.getAccessFor(remoteAddress),
 915                 receiptMessage);
 916     }
 917
 918     public Pair<Long, List<SendMessageResult>> sendMessage(
 919             String messageText, List<String> attachments, List<String> recipients
 920     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
 921         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 922                 .withBody(messageText);
 923         if (attachments != null) {
 924             List<SignalServiceAttachment> attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
 925
 926             // Upload attachments here, so we only upload once even for multiple recipients
 927             SignalServiceMessageSender messageSender = createMessageSender();
 928             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 929             for (SignalServiceAttachment attachment : attachmentStreams) {
 930                 if (attachment.isStream()) {
 931                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 932                 } else if (attachment.isPointer()) {
 933                     attachmentPointers.add(attachment.asPointer());
 934                 }
 935             }
 936
 937             messageBuilder.withAttachments(attachmentPointers);
 938         }
 939         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
 940     }
 941
 942     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
 943             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
 944     ) throws IOException, InvalidNumberException {
 945         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
 946                 remove,
 947                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
 948                 targetSentTimestamp);
 949         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 950                 .withReaction(reaction);
 951         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
 952     }
 953
 954     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
 955         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
 956
 957         final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
 958         try {
 959             return sendMessage(messageBuilder, signalServiceAddresses);
 960         } catch (Exception e) {
 961             for (SignalServiceAddress address : signalServiceAddresses) {
 962                 handleEndSession(address);
 963             }
 964             account.save();
 965             throw e;
 966         }
 967     }
 968
 969     public String getContactName(String number) throws InvalidNumberException {
 970         ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));
 971         if (contact == null) {
 972             return "";
 973         } else {
 974             return contact.name;
 975         }
 976     }
 977
 978     public void setContactName(String number, String name) throws InvalidNumberException {
 979         final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 980         ContactInfo contact = account.getContactStore().getContact(address);
 981         if (contact == null) {
 982             contact = new ContactInfo(address);
 983         }
 984         contact.name = name;
 985         account.getContactStore().updateContact(contact);
 986         account.save();
 987     }
 988
 989     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
 990         setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
 991     }
 992
 993     private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
 994         ContactInfo contact = account.getContactStore().getContact(address);
 995         if (contact == null) {
 996             contact = new ContactInfo(address);
 997         }
 998         contact.blocked = blocked;
 999         account.getContactStore().updateContact(contact);
1000         account.save();
1001     }
1002
1003     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1004         GroupInfo group = getGroup(groupId);
1005         if (group == null) {
1006             throw new GroupNotFoundException(groupId);
1007         }
1008
1009         group.setBlocked(blocked);
1010         account.getGroupStore().updateGroup(group);
1011         account.save();
1012     }
1013
1014     public Pair<GroupId, List<SendMessageResult>> updateGroup(
1015             GroupId groupId, String name, List<String> members, File avatarFile
1016     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
1017         return sendUpdateGroupMessage(groupId,
1018                 name,
1019                 members == null ? null : getSignalServiceAddresses(members),
1020                 avatarFile);
1021     }
1022
1023     /**
1024      * Change the expiration timer for a contact
1025      */
1026     public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) throws IOException {
1027         ContactInfo contact = account.getContactStore().getContact(address);
1028         contact.messageExpirationTime = messageExpirationTimer;
1029         account.getContactStore().updateContact(contact);
1030         sendExpirationTimerUpdate(address);
1031         account.save();
1032     }
1033
1034     private void sendExpirationTimerUpdate(SignalServiceAddress address) throws IOException {
1035         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1036                 .asExpirationUpdate();
1037         sendMessage(messageBuilder, List.of(address));
1038     }
1039
1040     /**
1041      * Change the expiration timer for a contact
1042      */
1043     public void setExpirationTimer(
1044             String number, int messageExpirationTimer
1045     ) throws IOException, InvalidNumberException {
1046         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
1047         setExpirationTimer(address, messageExpirationTimer);
1048     }
1049
1050     /**
1051      * Change the expiration timer for a group
1052      */
1053     public void setExpirationTimer(GroupId groupId, int messageExpirationTimer) {
1054         GroupInfo g = getGroup(groupId);
1055         if (g instanceof GroupInfoV1) {
1056             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
1057             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1058             account.getGroupStore().updateGroup(groupInfoV1);
1059         } else {
1060             throw new RuntimeException("TODO Not implemented!");
1061         }
1062     }
1063
1064     /**
1065      * Upload the sticker pack from path.
1066      *
1067      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1068      * @return if successful, returns the URL to install the sticker pack in the signal app
1069      */
1070     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1071         SignalServiceStickerManifestUpload manifest = getSignalServiceStickerManifestUpload(path);
1072
1073         SignalServiceMessageSender messageSender = createMessageSender();
1074
1075         byte[] packKey = KeyUtils.createStickerUploadKey();
1076         String packId = messageSender.uploadStickerManifest(manifest, packKey);
1077
1078         Sticker sticker = new Sticker(Hex.fromStringCondensed(packId), packKey);
1079         account.getStickerStore().updateSticker(sticker);
1080         account.save();
1081
1082         try {
1083             return new URI("https",
1084                     "signal.art",
1085                     "/addstickers/",
1086                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1087                             Hex.toStringCondensed(packKey),
1088                             StandardCharsets.UTF_8)).toString();
1089         } catch (URISyntaxException e) {
1090             throw new AssertionError(e);
1091         }
1092     }
1093
1094     private SignalServiceStickerManifestUpload getSignalServiceStickerManifestUpload(
1095             final File file
1096     ) throws IOException, StickerPackInvalidException {
1097         ZipFile zip = null;
1098         String rootPath = null;
1099
1100         if (file.getName().endsWith(".zip")) {
1101             zip = new ZipFile(file);
1102         } else if (file.getName().equals("manifest.json")) {
1103             rootPath = file.getParent();
1104         } else {
1105             throw new StickerPackInvalidException("Could not find manifest.json");
1106         }
1107
1108         JsonStickerPack pack = parseStickerPack(rootPath, zip);
1109
1110         if (pack.stickers == null) {
1111             throw new StickerPackInvalidException("Must set a 'stickers' field.");
1112         }
1113
1114         if (pack.stickers.isEmpty()) {
1115             throw new StickerPackInvalidException("Must include stickers.");
1116         }
1117
1118         List<StickerInfo> stickers = new ArrayList<>(pack.stickers.size());
1119         for (JsonStickerPack.JsonSticker sticker : pack.stickers) {
1120             if (sticker.file == null) {
1121                 throw new StickerPackInvalidException("Must set a 'file' field on each sticker.");
1122             }
1123
1124             Pair<InputStream, Long> data;
1125             try {
1126                 data = getInputStreamAndLength(rootPath, zip, sticker.file);
1127             } catch (IOException ignored) {
1128                 throw new StickerPackInvalidException("Could not find find " + sticker.file);
1129             }
1130
1131             String contentType = Utils.getFileMimeType(new File(sticker.file), null);
1132             StickerInfo stickerInfo = new StickerInfo(data.first(),
1133                     data.second(),
1134                     Optional.fromNullable(sticker.emoji).or(""),
1135                     contentType);
1136             stickers.add(stickerInfo);
1137         }
1138
1139         StickerInfo cover = null;
1140         if (pack.cover != null) {
1141             if (pack.cover.file == null) {
1142                 throw new StickerPackInvalidException("Must set a 'file' field on the cover.");
1143             }
1144
1145             Pair<InputStream, Long> data;
1146             try {
1147                 data = getInputStreamAndLength(rootPath, zip, pack.cover.file);
1148             } catch (IOException ignored) {
1149                 throw new StickerPackInvalidException("Could not find find " + pack.cover.file);
1150             }
1151
1152             String contentType = Utils.getFileMimeType(new File(pack.cover.file), null);
1153             cover = new StickerInfo(data.first(),
1154                     data.second(),
1155                     Optional.fromNullable(pack.cover.emoji).or(""),
1156                     contentType);
1157         }
1158
1159         return new SignalServiceStickerManifestUpload(pack.title, pack.author, cover, stickers);
1160     }
1161
1162     private static JsonStickerPack parseStickerPack(String rootPath, ZipFile zip) throws IOException {
1163         InputStream inputStream;
1164         if (zip != null) {
1165             inputStream = zip.getInputStream(zip.getEntry("manifest.json"));
1166         } else {
1167             inputStream = new FileInputStream((new File(rootPath, "manifest.json")));
1168         }
1169         return new ObjectMapper().readValue(inputStream, JsonStickerPack.class);
1170     }
1171
1172     private static Pair<InputStream, Long> getInputStreamAndLength(
1173             final String rootPath, final ZipFile zip, final String subfile
1174     ) throws IOException {
1175         if (zip != null) {
1176             final ZipEntry entry = zip.getEntry(subfile);
1177             return new Pair<>(zip.getInputStream(entry), entry.getSize());
1178         } else {
1179             final File file = new File(rootPath, subfile);
1180             return new Pair<>(new FileInputStream(file), file.length());
1181         }
1182     }
1183
1184     void requestSyncGroups() throws IOException {
1185         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1186                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1187                 .build();
1188         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1189         try {
1190             sendSyncMessage(message);
1191         } catch (UntrustedIdentityException e) {
1192             e.printStackTrace();
1193         }
1194     }
1195
1196     void requestSyncContacts() throws IOException {
1197         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1198                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1199                 .build();
1200         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1201         try {
1202             sendSyncMessage(message);
1203         } catch (UntrustedIdentityException e) {
1204             e.printStackTrace();
1205         }
1206     }
1207
1208     void requestSyncBlocked() throws IOException {
1209         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1210                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1211                 .build();
1212         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1213         try {
1214             sendSyncMessage(message);
1215         } catch (UntrustedIdentityException e) {
1216             e.printStackTrace();
1217         }
1218     }
1219
1220     void requestSyncConfiguration() throws IOException {
1221         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1222                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1223                 .build();
1224         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1225         try {
1226             sendSyncMessage(message);
1227         } catch (UntrustedIdentityException e) {
1228             e.printStackTrace();
1229         }
1230     }
1231
1232     private byte[] getSenderCertificate() {
1233         // TODO support UUID capable sender certificates
1234         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1235         byte[] certificate;
1236         try {
1237             certificate = accountManager.getSenderCertificate();
1238         } catch (IOException e) {
1239             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1240             return null;
1241         }
1242         // TODO cache for a day
1243         return certificate;
1244     }
1245
1246     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1247         SignalServiceMessageSender messageSender = createMessageSender();
1248         try {
1249             messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1250         } catch (UntrustedIdentityException e) {
1251             account.getSignalProtocolStore()
1252                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1253                             e.getIdentityKey(),
1254                             TrustLevel.UNTRUSTED);
1255             throw e;
1256         }
1257     }
1258
1259     private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1260         final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
1261         final Set<SignalServiceAddress> missingUuids = new HashSet<>();
1262
1263         for (String number : numbers) {
1264             final SignalServiceAddress resolvedAddress = canonicalizeAndResolveSignalServiceAddress(number);
1265             if (resolvedAddress.getUuid().isPresent()) {
1266                 signalServiceAddresses.add(resolvedAddress);
1267             } else {
1268                 missingUuids.add(resolvedAddress);
1269             }
1270         }
1271
1272         Map<String, UUID> registeredUsers;
1273         try {
1274             registeredUsers = accountManager.getRegisteredUsers(getIasKeyStore(),
1275                     missingUuids.stream().map(a -> a.getNumber().get()).collect(Collectors.toSet()),
1276                     CDS_MRENCLAVE);
1277         } catch (IOException | Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException e) {
1278             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1279             registeredUsers = new HashMap<>();
1280         }
1281
1282         for (SignalServiceAddress address : missingUuids) {
1283             final String number = address.getNumber().get();
1284             if (registeredUsers.containsKey(number)) {
1285                 final SignalServiceAddress newAddress = resolveSignalServiceAddress(new SignalServiceAddress(
1286                         registeredUsers.get(number),
1287                         number));
1288                 signalServiceAddresses.add(newAddress);
1289             } else {
1290                 signalServiceAddresses.add(address);
1291             }
1292         }
1293
1294         return signalServiceAddresses;
1295     }
1296
1297     private Pair<Long, List<SendMessageResult>> sendMessage(
1298             SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients
1299     ) throws IOException {
1300         recipients = recipients.stream().map(this::resolveSignalServiceAddress).collect(Collectors.toSet());
1301         final long timestamp = System.currentTimeMillis();
1302         messageBuilder.withTimestamp(timestamp);
1303         getOrCreateMessagePipe();
1304         getOrCreateUnidentifiedMessagePipe();
1305         SignalServiceDataMessage message = null;
1306         try {
1307             message = messageBuilder.build();
1308             if (message.getGroupContext().isPresent()) {
1309                 try {
1310                     SignalServiceMessageSender messageSender = createMessageSender();
1311                     final boolean isRecipientUpdate = false;
1312                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients),
1313                             unidentifiedAccessHelper.getAccessFor(recipients),
1314                             isRecipientUpdate,
1315                             message);
1316                     for (SendMessageResult r : result) {
1317                         if (r.getIdentityFailure() != null) {
1318                             account.getSignalProtocolStore()
1319                                     .saveIdentity(r.getAddress(),
1320                                             r.getIdentityFailure().getIdentityKey(),
1321                                             TrustLevel.UNTRUSTED);
1322                         }
1323                     }
1324                     return new Pair<>(timestamp, result);
1325                 } catch (UntrustedIdentityException e) {
1326                     account.getSignalProtocolStore()
1327                             .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1328                                     e.getIdentityKey(),
1329                                     TrustLevel.UNTRUSTED);
1330                     return new Pair<>(timestamp, List.of());
1331                 }
1332             } else {
1333                 // Send to all individually, so sync messages are sent correctly
1334                 messageBuilder.withProfileKey(account.getProfileKey().serialize());
1335                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1336                 for (SignalServiceAddress address : recipients) {
1337                     final ContactInfo contact = account.getContactStore().getContact(address);
1338                     final int expirationTime = contact != null ? contact.messageExpirationTime : 0;
1339                     messageBuilder.withExpiration(expirationTime);
1340                     message = messageBuilder.build();
1341                     if (address.matches(account.getSelfAddress())) {
1342                         results.add(sendSelfMessage(message));
1343                     } else {
1344                         results.add(sendMessage(address, message));
1345                     }
1346                 }
1347                 return new Pair<>(timestamp, results);
1348             }
1349         } finally {
1350             if (message != null && message.isEndSession()) {
1351                 for (SignalServiceAddress recipient : recipients) {
1352                     handleEndSession(recipient);
1353                 }
1354             }
1355             account.save();
1356         }
1357     }
1358
1359     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1360         SignalServiceMessageSender messageSender = createMessageSender();
1361
1362         SignalServiceAddress recipient = account.getSelfAddress();
1363
1364         final Optional<UnidentifiedAccessPair> unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipient);
1365         SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1366                 message.getTimestamp(),
1367                 message,
1368                 message.getExpiresInSeconds(),
1369                 Map.of(recipient, unidentifiedAccess.isPresent()),
1370                 false);
1371         SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1372
1373         try {
1374             long startTime = System.currentTimeMillis();
1375             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1376             return SendMessageResult.success(recipient,
1377                     unidentifiedAccess.isPresent(),
1378                     false,
1379                     System.currentTimeMillis() - startTime);
1380         } catch (UntrustedIdentityException e) {
1381             account.getSignalProtocolStore()
1382                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1383                             e.getIdentityKey(),
1384                             TrustLevel.UNTRUSTED);
1385             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1386         }
1387     }
1388
1389     private SendMessageResult sendMessage(
1390             SignalServiceAddress address, SignalServiceDataMessage message
1391     ) throws IOException {
1392         SignalServiceMessageSender messageSender = createMessageSender();
1393
1394         try {
1395             return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(address), message);
1396         } catch (UntrustedIdentityException e) {
1397             account.getSignalProtocolStore()
1398                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1399                             e.getIdentityKey(),
1400                             TrustLevel.UNTRUSTED);
1401             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1402         }
1403     }
1404
1405     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1406         SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(),
1407                 account.getSignalProtocolStore(),
1408                 certificateValidator);
1409         try {
1410             return cipher.decrypt(envelope);
1411         } catch (ProtocolUntrustedIdentityException e) {
1412             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1413                 org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e
1414                         .getCause();
1415                 account.getSignalProtocolStore()
1416                         .saveIdentity(resolveSignalServiceAddress(identityException.getName()),
1417                                 identityException.getUntrustedIdentity(),
1418                                 TrustLevel.UNTRUSTED);
1419                 throw identityException;
1420             }
1421             throw new AssertionError(e);
1422         }
1423     }
1424
1425     private void handleEndSession(SignalServiceAddress source) {
1426         account.getSignalProtocolStore().deleteAllSessions(source);
1427     }
1428
1429     private static int currentTimeDays() {
1430         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
1431     }
1432
1433     private GroupsV2AuthorizationString getGroupAuthForToday(
1434             final GroupSecretParams groupSecretParams
1435     ) throws IOException {
1436         final int today = currentTimeDays();
1437         // Returns credentials for the next 7 days
1438         final HashMap<Integer, AuthCredentialResponse> credentials = groupsV2Api.getCredentials(today);
1439         // TODO cache credentials until they expire
1440         AuthCredentialResponse authCredentialResponse = credentials.get(today);
1441         try {
1442             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
1443                     today,
1444                     groupSecretParams,
1445                     authCredentialResponse);
1446         } catch (VerificationFailedException e) {
1447             throw new IOException(e);
1448         }
1449     }
1450
1451     private List<HandleAction> handleSignalServiceDataMessage(
1452             SignalServiceDataMessage message,
1453             boolean isSync,
1454             SignalServiceAddress source,
1455             SignalServiceAddress destination,
1456             boolean ignoreAttachments
1457     ) {
1458         List<HandleAction> actions = new ArrayList<>();
1459         if (message.getGroupContext().isPresent()) {
1460             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1461                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1462                 GroupIdV1 groupId = GroupId.v1(groupInfo.getGroupId());
1463                 GroupInfo group = getGroup(groupId);
1464                 if (group == null || group instanceof GroupInfoV1) {
1465                     GroupInfoV1 groupV1 = (GroupInfoV1) group;
1466                     switch (groupInfo.getType()) {
1467                         case UPDATE: {
1468                             if (groupV1 == null) {
1469                                 groupV1 = new GroupInfoV1(groupId);
1470                             }
1471
1472                             if (groupInfo.getAvatar().isPresent()) {
1473                                 SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1474                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1475                             }
1476
1477                             if (groupInfo.getName().isPresent()) {
1478                                 groupV1.name = groupInfo.getName().get();
1479                             }
1480
1481                             if (groupInfo.getMembers().isPresent()) {
1482                                 groupV1.addMembers(groupInfo.getMembers()
1483                                         .get()
1484                                         .stream()
1485                                         .map(this::resolveSignalServiceAddress)
1486                                         .collect(Collectors.toSet()));
1487                             }
1488
1489                             account.getGroupStore().updateGroup(groupV1);
1490                             break;
1491                         }
1492                         case DELIVER:
1493                             if (groupV1 == null && !isSync) {
1494                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1495                             }
1496                             break;
1497                         case QUIT: {
1498                             if (groupV1 != null) {
1499                                 groupV1.removeMember(source);
1500                                 account.getGroupStore().updateGroup(groupV1);
1501                             }
1502                             break;
1503                         }
1504                         case REQUEST_INFO:
1505                             if (groupV1 != null && !isSync) {
1506                                 actions.add(new SendGroupUpdateAction(source, groupV1.getGroupId()));
1507                             }
1508                             break;
1509                     }
1510                 } else {
1511                     // Received a group v1 message for a v2 group
1512                 }
1513             }
1514             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1515                 final SignalServiceGroupV2 groupContext = message.getGroupContext().get().getGroupV2().get();
1516                 final GroupMasterKey groupMasterKey = groupContext.getMasterKey();
1517
1518                 getOrMigrateGroup(groupMasterKey,
1519                         groupContext.getRevision(),
1520                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1521             }
1522         }
1523
1524         final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;
1525         if (conversationPartnerAddress != null && message.isEndSession()) {
1526             handleEndSession(conversationPartnerAddress);
1527         }
1528         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1529             if (message.getGroupContext().isPresent()) {
1530                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1531                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1532                     GroupInfoV1 group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1533                     if (group != null) {
1534                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1535                             group.messageExpirationTime = message.getExpiresInSeconds();
1536                             account.getGroupStore().updateGroup(group);
1537                         }
1538                     }
1539                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1540                     // disappearing message timer already stored in the DecryptedGroup
1541                 }
1542             } else if (conversationPartnerAddress != null) {
1543                 ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
1544                 if (contact == null) {
1545                     contact = new ContactInfo(conversationPartnerAddress);
1546                 }
1547                 if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
1548                     contact.messageExpirationTime = message.getExpiresInSeconds();
1549                     account.getContactStore().updateContact(contact);
1550                 }
1551             }
1552         }
1553         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1554             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1555                 downloadAttachment(attachment);
1556             }
1557         }
1558         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1559             final ProfileKey profileKey;
1560             try {
1561                 profileKey = new ProfileKey(message.getProfileKey().get());
1562             } catch (InvalidInputException e) {
1563                 throw new AssertionError(e);
1564             }
1565             if (source.matches(account.getSelfAddress())) {
1566                 this.account.setProfileKey(profileKey);
1567             }
1568             this.account.getProfileStore().storeProfileKey(source, profileKey);
1569         }
1570         if (message.getPreviews().isPresent()) {
1571             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1572             for (SignalServiceDataMessage.Preview preview : previews) {
1573                 if (preview.getImage().isPresent()) {
1574                     downloadAttachment(preview.getImage().get());
1575                 }
1576             }
1577         }
1578         if (message.getQuote().isPresent()) {
1579             final SignalServiceDataMessage.Quote quote = message.getQuote().get();
1580
1581             for (SignalServiceDataMessage.Quote.QuotedAttachment quotedAttachment : quote.getAttachments()) {
1582                 final SignalServiceAttachment thumbnail = quotedAttachment.getThumbnail();
1583                 if (thumbnail != null) {
1584                     downloadAttachment(thumbnail);
1585                 }
1586             }
1587         }
1588         if (message.getSticker().isPresent()) {
1589             final SignalServiceDataMessage.Sticker messageSticker = message.getSticker().get();
1590             Sticker sticker = account.getStickerStore().getSticker(messageSticker.getPackId());
1591             if (sticker == null) {
1592                 sticker = new Sticker(messageSticker.getPackId(), messageSticker.getPackKey());
1593                 account.getStickerStore().updateSticker(sticker);
1594             }
1595         }
1596         return actions;
1597     }
1598
1599     private GroupInfoV2 getOrMigrateGroup(
1600             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1601     ) {
1602         final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1603
1604         GroupIdV2 groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1605         GroupInfo groupInfo = getGroup(groupId);
1606         final GroupInfoV2 groupInfoV2;
1607         if (groupInfo instanceof GroupInfoV1) {
1608             // Received a v2 group message for a v1 group, we need to locally migrate the group
1609             account.getGroupStore().deleteGroup(groupInfo.getGroupId());
1610             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1611             logger.info("Locally migrated group {} to group v2, id: {}",
1612                     groupInfo.getGroupId().toBase64(),
1613                     groupInfoV2.getGroupId().toBase64());
1614         } else if (groupInfo instanceof GroupInfoV2) {
1615             groupInfoV2 = (GroupInfoV2) groupInfo;
1616         } else {
1617             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1618         }
1619
1620         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1621             DecryptedGroup group = null;
1622             if (signedGroupChange != null
1623                     && groupInfoV2.getGroup() != null
1624                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1625                 group = groupHelper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(), signedGroupChange, groupMasterKey);
1626             }
1627             if (group == null) {
1628                 group = groupHelper.getDecryptedGroup(groupSecretParams);
1629             }
1630             if (group != null) {
1631                 storeProfileKeysFromMembers(group);
1632                 final String avatar = group.getAvatar();
1633                 if (avatar != null && !avatar.isEmpty()) {
1634                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1635                 }
1636             }
1637             groupInfoV2.setGroup(group);
1638             account.getGroupStore().updateGroup(groupInfoV2);
1639         }
1640
1641         return groupInfoV2;
1642     }
1643
1644     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1645         for (DecryptedMember member : group.getMembersList()) {
1646             final SignalServiceAddress address = resolveSignalServiceAddress(new SignalServiceAddress(UuidUtil.parseOrThrow(
1647                     member.getUuid().toByteArray()), null));
1648             try {
1649                 account.getProfileStore()
1650                         .storeProfileKey(address, new ProfileKey(member.getProfileKey().toByteArray()));
1651             } catch (InvalidInputException ignored) {
1652             }
1653         }
1654     }
1655
1656     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1657         for (CachedMessage cachedMessage : account.getMessageCache().getCachedMessages()) {
1658             retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1659         }
1660     }
1661
1662     private void retryFailedReceivedMessage(
1663             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1664     ) {
1665         SignalServiceEnvelope envelope = cachedMessage.loadEnvelope();
1666         if (envelope == null) {
1667             return;
1668         }
1669         SignalServiceContent content = null;
1670         if (!envelope.isReceipt()) {
1671             try {
1672                 content = decryptMessage(envelope);
1673             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1674                 return;
1675             } catch (Exception er) {
1676                 // All other errors are not recoverable, so delete the cached message
1677                 cachedMessage.delete();
1678                 return;
1679             }
1680             List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1681             for (HandleAction action : actions) {
1682                 try {
1683                     action.execute(this);
1684                 } catch (Throwable e) {
1685                     e.printStackTrace();
1686                 }
1687             }
1688         }
1689         account.save();
1690         handler.handleMessage(envelope, content, null);
1691         cachedMessage.delete();
1692     }
1693
1694     public void receiveMessages(
1695             long timeout,
1696             TimeUnit unit,
1697             boolean returnOnTimeout,
1698             boolean ignoreAttachments,
1699             ReceiveMessageHandler handler
1700     ) throws IOException {
1701         retryFailedReceivedMessages(handler, ignoreAttachments);
1702
1703         Set<HandleAction> queuedActions = null;
1704
1705         final SignalServiceMessagePipe messagePipe = getOrCreateMessagePipe();
1706
1707         boolean hasCaughtUpWithOldMessages = false;
1708
1709         while (true) {
1710             SignalServiceEnvelope envelope;
1711             SignalServiceContent content = null;
1712             Exception exception = null;
1713             final CachedMessage[] cachedMessage = {null};
1714             try {
1715                 Optional<SignalServiceEnvelope> result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1716                     // store message on disk, before acknowledging receipt to the server
1717                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1);
1718                 });
1719                 if (result.isPresent()) {
1720                     envelope = result.get();
1721                 } else {
1722                     // Received indicator that server queue is empty
1723                     hasCaughtUpWithOldMessages = true;
1724
1725                     if (queuedActions != null) {
1726                         for (HandleAction action : queuedActions) {
1727                             try {
1728                                 action.execute(this);
1729                             } catch (Throwable e) {
1730                                 e.printStackTrace();
1731                             }
1732                         }
1733                         account.save();
1734                         queuedActions.clear();
1735                         queuedActions = null;
1736                     }
1737
1738                     // Continue to wait another timeout for new messages
1739                     continue;
1740                 }
1741             } catch (TimeoutException e) {
1742                 if (returnOnTimeout) return;
1743                 continue;
1744             } catch (InvalidVersionException e) {
1745                 logger.warn("Error while receiving messages, ignoring: {}", e.getMessage());
1746                 continue;
1747             }
1748
1749             if (envelope.hasSource()) {
1750                 // Store uuid if we don't have it already
1751                 SignalServiceAddress source = envelope.getSourceAddress();
1752                 resolveSignalServiceAddress(source);
1753             }
1754             if (!envelope.isReceipt()) {
1755                 try {
1756                     content = decryptMessage(envelope);
1757                 } catch (Exception e) {
1758                     exception = e;
1759                 }
1760                 List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1761                 if (hasCaughtUpWithOldMessages) {
1762                     for (HandleAction action : actions) {
1763                         try {
1764                             action.execute(this);
1765                         } catch (Throwable e) {
1766                             e.printStackTrace();
1767                         }
1768                     }
1769                 } else {
1770                     if (queuedActions == null) {
1771                         queuedActions = new HashSet<>();
1772                     }
1773                     queuedActions.addAll(actions);
1774                 }
1775             }
1776             account.save();
1777             if (isMessageBlocked(envelope, content)) {
1778                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
1779             } else if (isNotAGroupMember(envelope, content)) {
1780                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
1781             } else {
1782                 handler.handleMessage(envelope, content, exception);
1783             }
1784             if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
1785                 if (cachedMessage[0] != null) {
1786                     cachedMessage[0].delete();
1787                 }
1788             }
1789         }
1790     }
1791
1792     private boolean isMessageBlocked(
1793             SignalServiceEnvelope envelope, SignalServiceContent content
1794     ) {
1795         SignalServiceAddress source;
1796         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1797             source = envelope.getSourceAddress();
1798         } else if (content != null) {
1799             source = content.getSender();
1800         } else {
1801             return false;
1802         }
1803         ContactInfo sourceContact = account.getContactStore().getContact(source);
1804         if (sourceContact != null && sourceContact.blocked) {
1805             return true;
1806         }
1807
1808         if (content != null && content.getDataMessage().isPresent()) {
1809             SignalServiceDataMessage message = content.getDataMessage().get();
1810             if (message.getGroupContext().isPresent()) {
1811                 GroupId groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1812                 GroupInfo group = getGroup(groupId);
1813                 if (group != null && group.isBlocked()) {
1814                     return true;
1815                 }
1816             }
1817         }
1818         return false;
1819     }
1820
1821     private boolean isNotAGroupMember(
1822             SignalServiceEnvelope envelope, SignalServiceContent content
1823     ) {
1824         SignalServiceAddress source;
1825         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1826             source = envelope.getSourceAddress();
1827         } else if (content != null) {
1828             source = content.getSender();
1829         } else {
1830             return false;
1831         }
1832
1833         if (content != null && content.getDataMessage().isPresent()) {
1834             SignalServiceDataMessage message = content.getDataMessage().get();
1835             if (message.getGroupContext().isPresent()) {
1836                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1837                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1838                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
1839                         return false;
1840                     }
1841                 }
1842                 GroupId groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1843                 GroupInfo group = getGroup(groupId);
1844                 if (group != null && !group.isMember(source)) {
1845                     return true;
1846                 }
1847             }
1848         }
1849         return false;
1850     }
1851
1852     private List<HandleAction> handleMessage(
1853             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
1854     ) {
1855         List<HandleAction> actions = new ArrayList<>();
1856         if (content != null) {
1857             final SignalServiceAddress sender;
1858             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1859                 sender = envelope.getSourceAddress();
1860             } else {
1861                 sender = content.getSender();
1862             }
1863             // Store uuid if we don't have it already
1864             resolveSignalServiceAddress(sender);
1865
1866             if (content.getDataMessage().isPresent()) {
1867                 SignalServiceDataMessage message = content.getDataMessage().get();
1868
1869                 if (content.isNeedsReceipt()) {
1870                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1871                 }
1872
1873                 actions.addAll(handleSignalServiceDataMessage(message,
1874                         false,
1875                         sender,
1876                         account.getSelfAddress(),
1877                         ignoreAttachments));
1878             }
1879             if (content.getSyncMessage().isPresent()) {
1880                 account.setMultiDevice(true);
1881                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1882                 if (syncMessage.getSent().isPresent()) {
1883                     SentTranscriptMessage message = syncMessage.getSent().get();
1884                     final SignalServiceAddress destination = message.getDestination().orNull();
1885                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
1886                             true,
1887                             sender,
1888                             destination,
1889                             ignoreAttachments));
1890                 }
1891                 if (syncMessage.getRequest().isPresent()) {
1892                     RequestMessage rm = syncMessage.getRequest().get();
1893                     if (rm.isContactsRequest()) {
1894                         actions.add(SendSyncContactsAction.create());
1895                     }
1896                     if (rm.isGroupsRequest()) {
1897                         actions.add(SendSyncGroupsAction.create());
1898                     }
1899                     if (rm.isBlockedListRequest()) {
1900                         actions.add(SendSyncBlockedListAction.create());
1901                     }
1902                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
1903                 }
1904                 if (syncMessage.getGroups().isPresent()) {
1905                     File tmpFile = null;
1906                     try {
1907                         tmpFile = IOUtils.createTempFile();
1908                         final SignalServiceAttachment groupsMessage = syncMessage.getGroups().get();
1909                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(),
1910                                 tmpFile)) {
1911                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1912                             DeviceGroup g;
1913                             while ((g = s.read()) != null) {
1914                                 GroupInfoV1 syncGroup = account.getGroupStore()
1915                                         .getOrCreateGroupV1(GroupId.v1(g.getId()));
1916                                 if (syncGroup != null) {
1917                                     if (g.getName().isPresent()) {
1918                                         syncGroup.name = g.getName().get();
1919                                     }
1920                                     syncGroup.addMembers(g.getMembers()
1921                                             .stream()
1922                                             .map(this::resolveSignalServiceAddress)
1923                                             .collect(Collectors.toSet()));
1924                                     if (!g.isActive()) {
1925                                         syncGroup.removeMember(account.getSelfAddress());
1926                                     } else {
1927                                         // Add ourself to the member set as it's marked as active
1928                                         syncGroup.addMembers(List.of(account.getSelfAddress()));
1929                                     }
1930                                     syncGroup.blocked = g.isBlocked();
1931                                     if (g.getColor().isPresent()) {
1932                                         syncGroup.color = g.getColor().get();
1933                                     }
1934
1935                                     if (g.getAvatar().isPresent()) {
1936                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
1937                                     }
1938                                     syncGroup.inboxPosition = g.getInboxPosition().orNull();
1939                                     syncGroup.archived = g.isArchived();
1940                                     account.getGroupStore().updateGroup(syncGroup);
1941                                 }
1942                             }
1943                         }
1944                     } catch (Exception e) {
1945                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
1946                                 tmpFile,
1947                                 e.getMessage());
1948                         e.printStackTrace();
1949                     } finally {
1950                         if (tmpFile != null) {
1951                             try {
1952                                 Files.delete(tmpFile.toPath());
1953                             } catch (IOException e) {
1954                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
1955                                         tmpFile,
1956                                         e.getMessage());
1957                             }
1958                         }
1959                     }
1960                 }
1961                 if (syncMessage.getBlockedList().isPresent()) {
1962                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1963                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1964                         setContactBlocked(resolveSignalServiceAddress(address), true);
1965                     }
1966                     for (GroupId groupId : blockedListMessage.getGroupIds()
1967                             .stream()
1968                             .map(GroupId::unknownVersion)
1969                             .collect(Collectors.toSet())) {
1970                         try {
1971                             setGroupBlocked(groupId, true);
1972                         } catch (GroupNotFoundException e) {
1973                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
1974                                     groupId.toBase64());
1975                         }
1976                     }
1977                 }
1978                 if (syncMessage.getContacts().isPresent()) {
1979                     File tmpFile = null;
1980                     try {
1981                         tmpFile = IOUtils.createTempFile();
1982                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1983                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
1984                                 .asPointer(), tmpFile)) {
1985                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1986                             if (contactsMessage.isComplete()) {
1987                                 account.getContactStore().clear();
1988                             }
1989                             DeviceContact c;
1990                             while ((c = s.read()) != null) {
1991                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
1992                                     account.setProfileKey(c.getProfileKey().get());
1993                                 }
1994                                 final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
1995                                 ContactInfo contact = account.getContactStore().getContact(address);
1996                                 if (contact == null) {
1997                                     contact = new ContactInfo(address);
1998                                 }
1999                                 if (c.getName().isPresent()) {
2000                                     contact.name = c.getName().get();
2001                                 }
2002                                 if (c.getColor().isPresent()) {
2003                                     contact.color = c.getColor().get();
2004                                 }
2005                                 if (c.getProfileKey().isPresent()) {
2006                                     account.getProfileStore().storeProfileKey(address, c.getProfileKey().get());
2007                                 }
2008                                 if (c.getVerified().isPresent()) {
2009                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
2010                                     account.getSignalProtocolStore()
2011                                             .setIdentityTrustLevel(verifiedMessage.getDestination(),
2012                                                     verifiedMessage.getIdentityKey(),
2013                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2014                                 }
2015                                 if (c.getExpirationTimer().isPresent()) {
2016                                     contact.messageExpirationTime = c.getExpirationTimer().get();
2017                                 }
2018                                 contact.blocked = c.isBlocked();
2019                                 contact.inboxPosition = c.getInboxPosition().orNull();
2020                                 contact.archived = c.isArchived();
2021                                 account.getContactStore().updateContact(contact);
2022
2023                                 if (c.getAvatar().isPresent()) {
2024                                     downloadContactAvatar(c.getAvatar().get(), contact.getAddress());
2025                                 }
2026                             }
2027                         }
2028                     } catch (Exception e) {
2029                         e.printStackTrace();
2030                     } finally {
2031                         if (tmpFile != null) {
2032                             try {
2033                                 Files.delete(tmpFile.toPath());
2034                             } catch (IOException e) {
2035                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2036                                         tmpFile,
2037                                         e.getMessage());
2038                             }
2039                         }
2040                     }
2041                 }
2042                 if (syncMessage.getVerified().isPresent()) {
2043                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
2044                     account.getSignalProtocolStore()
2045                             .setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()),
2046                                     verifiedMessage.getIdentityKey(),
2047                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2048                 }
2049                 if (syncMessage.getStickerPackOperations().isPresent()) {
2050                     final List<StickerPackOperationMessage> stickerPackOperationMessages = syncMessage.getStickerPackOperations()
2051                             .get();
2052                     for (StickerPackOperationMessage m : stickerPackOperationMessages) {
2053                         if (!m.getPackId().isPresent()) {
2054                             continue;
2055                         }
2056                         Sticker sticker = account.getStickerStore().getSticker(m.getPackId().get());
2057                         if (sticker == null) {
2058                             if (!m.getPackKey().isPresent()) {
2059                                 continue;
2060                             }
2061                             sticker = new Sticker(m.getPackId().get(), m.getPackKey().get());
2062                         }
2063                         sticker.setInstalled(!m.getType().isPresent()
2064                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2065                         account.getStickerStore().updateSticker(sticker);
2066                     }
2067                 }
2068                 if (syncMessage.getConfiguration().isPresent()) {
2069                     // TODO
2070                 }
2071             }
2072         }
2073         return actions;
2074     }
2075
2076     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2077         try {
2078             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2079         } catch (IOException e) {
2080             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2081         }
2082     }
2083
2084     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2085         try {
2086             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2087         } catch (IOException e) {
2088             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2089         }
2090     }
2091
2092     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2093         try {
2094             avatarStore.storeGroupAvatar(groupId,
2095                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2096         } catch (IOException e) {
2097             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2098         }
2099     }
2100
2101     private void downloadProfileAvatar(
2102             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2103     ) {
2104         try {
2105             avatarStore.storeProfileAvatar(address,
2106                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2107         } catch (Throwable e) {
2108             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2109         }
2110     }
2111
2112     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2113         return attachmentStore.getAttachmentFile(attachmentId);
2114     }
2115
2116     private void downloadAttachment(final SignalServiceAttachment attachment) {
2117         if (!attachment.isPointer()) {
2118             logger.warn("Invalid state, can't store an attachment stream.");
2119         }
2120
2121         SignalServiceAttachmentPointer pointer = attachment.asPointer();
2122         if (pointer.getPreview().isPresent()) {
2123             final byte[] preview = pointer.getPreview().get();
2124             try {
2125                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2126                         outputStream -> outputStream.write(preview, 0, preview.length));
2127             } catch (IOException e) {
2128                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2129             }
2130         }
2131
2132         try {
2133             attachmentStore.storeAttachment(pointer.getRemoteId(),
2134                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2135         } catch (IOException e) {
2136             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2137         }
2138     }
2139
2140     private void retrieveGroupV2Avatar(
2141             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2142     ) throws IOException {
2143         GroupsV2Operations.GroupOperations groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2144
2145         File tmpFile = IOUtils.createTempFile();
2146         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2147                 tmpFile,
2148                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2149             byte[] encryptedData = IOUtils.readFully(input);
2150
2151             byte[] decryptedData = groupOperations.decryptAvatar(encryptedData);
2152             outputStream.write(decryptedData);
2153         } finally {
2154             try {
2155                 Files.delete(tmpFile.toPath());
2156             } catch (IOException e) {
2157                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2158                         tmpFile,
2159                         e.getMessage());
2160             }
2161         }
2162     }
2163
2164     private void retrieveProfileAvatar(
2165             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2166     ) throws IOException {
2167         File tmpFile = IOUtils.createTempFile();
2168         try (InputStream input = messageReceiver.retrieveProfileAvatar(avatarPath,
2169                 tmpFile,
2170                 profileKey,
2171                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2172             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2173             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2174         } finally {
2175             try {
2176                 Files.delete(tmpFile.toPath());
2177             } catch (IOException e) {
2178                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2179                         tmpFile,
2180                         e.getMessage());
2181             }
2182         }
2183     }
2184
2185     private void retrieveAttachment(
2186             final SignalServiceAttachment attachment, final OutputStream outputStream
2187     ) throws IOException {
2188         if (attachment.isPointer()) {
2189             SignalServiceAttachmentPointer pointer = attachment.asPointer();
2190             retrieveAttachmentPointer(pointer, outputStream);
2191         } else {
2192             SignalServiceAttachmentStream stream = attachment.asStream();
2193             IOUtils.copyStream(stream.getInputStream(), outputStream);
2194         }
2195     }
2196
2197     private void retrieveAttachmentPointer(
2198             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2199     ) throws IOException {
2200         File tmpFile = IOUtils.createTempFile();
2201         try (InputStream input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2202             IOUtils.copyStream(input, outputStream);
2203         } catch (MissingConfigurationException | InvalidMessageException e) {
2204             throw new IOException(e);
2205         } finally {
2206             try {
2207                 Files.delete(tmpFile.toPath());
2208             } catch (IOException e) {
2209                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2210                         tmpFile,
2211                         e.getMessage());
2212             }
2213         }
2214     }
2215
2216     private InputStream retrieveAttachmentAsStream(
2217             SignalServiceAttachmentPointer pointer, File tmpFile
2218     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2219         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2220     }
2221
2222     void sendGroups() throws IOException, UntrustedIdentityException {
2223         File groupsFile = IOUtils.createTempFile();
2224
2225         try {
2226             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2227                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
2228                 for (GroupInfo record : getGroups()) {
2229                     if (record instanceof GroupInfoV1) {
2230                         GroupInfoV1 groupInfo = (GroupInfoV1) record;
2231                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2232                                 Optional.fromNullable(groupInfo.name),
2233                                 new ArrayList<>(groupInfo.getMembers()),
2234                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2235                                 groupInfo.isMember(account.getSelfAddress()),
2236                                 Optional.of(groupInfo.messageExpirationTime),
2237                                 Optional.fromNullable(groupInfo.color),
2238                                 groupInfo.blocked,
2239                                 Optional.fromNullable(groupInfo.inboxPosition),
2240                                 groupInfo.archived));
2241                     }
2242                 }
2243             }
2244
2245             if (groupsFile.exists() && groupsFile.length() > 0) {
2246                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
2247                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2248                             .withStream(groupsFileStream)
2249                             .withContentType("application/octet-stream")
2250                             .withLength(groupsFile.length())
2251                             .build();
2252
2253                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2254                 }
2255             }
2256         } finally {
2257             try {
2258                 Files.delete(groupsFile.toPath());
2259             } catch (IOException e) {
2260                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2261             }
2262         }
2263     }
2264
2265     public void sendContacts() throws IOException, UntrustedIdentityException {
2266         File contactsFile = IOUtils.createTempFile();
2267
2268         try {
2269             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2270                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
2271                 for (ContactInfo record : account.getContactStore().getContacts()) {
2272                     VerifiedMessage verifiedMessage = null;
2273                     IdentityInfo currentIdentity = account.getSignalProtocolStore().getIdentity(record.getAddress());
2274                     if (currentIdentity != null) {
2275                         verifiedMessage = new VerifiedMessage(record.getAddress(),
2276                                 currentIdentity.getIdentityKey(),
2277                                 currentIdentity.getTrustLevel().toVerifiedState(),
2278                                 currentIdentity.getDateAdded().getTime());
2279                     }
2280
2281                     ProfileKey profileKey = account.getProfileStore().getProfileKey(record.getAddress());
2282                     out.write(new DeviceContact(record.getAddress(),
2283                             Optional.fromNullable(record.name),
2284                             createContactAvatarAttachment(record.getAddress()),
2285                             Optional.fromNullable(record.color),
2286                             Optional.fromNullable(verifiedMessage),
2287                             Optional.fromNullable(profileKey),
2288                             record.blocked,
2289                             Optional.of(record.messageExpirationTime),
2290                             Optional.fromNullable(record.inboxPosition),
2291                             record.archived));
2292                 }
2293
2294                 if (account.getProfileKey() != null) {
2295                     // Send our own profile key as well
2296                     out.write(new DeviceContact(account.getSelfAddress(),
2297                             Optional.absent(),
2298                             Optional.absent(),
2299                             Optional.absent(),
2300                             Optional.absent(),
2301                             Optional.of(account.getProfileKey()),
2302                             false,
2303                             Optional.absent(),
2304                             Optional.absent(),
2305                             false));
2306                 }
2307             }
2308
2309             if (contactsFile.exists() && contactsFile.length() > 0) {
2310                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
2311                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2312                             .withStream(contactsFileStream)
2313                             .withContentType("application/octet-stream")
2314                             .withLength(contactsFile.length())
2315                             .build();
2316
2317                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2318                 }
2319             }
2320         } finally {
2321             try {
2322                 Files.delete(contactsFile.toPath());
2323             } catch (IOException e) {
2324                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2325             }
2326         }
2327     }
2328
2329     void sendBlockedList() throws IOException, UntrustedIdentityException {
2330         List<SignalServiceAddress> addresses = new ArrayList<>();
2331         for (ContactInfo record : account.getContactStore().getContacts()) {
2332             if (record.blocked) {
2333                 addresses.add(record.getAddress());
2334             }
2335         }
2336         List<byte[]> groupIds = new ArrayList<>();
2337         for (GroupInfo record : getGroups()) {
2338             if (record.isBlocked()) {
2339                 groupIds.add(record.getGroupId().serialize());
2340             }
2341         }
2342         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2343     }
2344
2345     private void sendVerifiedMessage(
2346             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2347     ) throws IOException, UntrustedIdentityException {
2348         VerifiedMessage verifiedMessage = new VerifiedMessage(destination,
2349                 identityKey,
2350                 trustLevel.toVerifiedState(),
2351                 System.currentTimeMillis());
2352         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2353     }
2354
2355     public List<ContactInfo> getContacts() {
2356         return account.getContactStore().getContacts();
2357     }
2358
2359     public ContactInfo getContact(String number) {
2360         return account.getContactStore().getContact(Utils.getSignalServiceAddressFromIdentifier(number));
2361     }
2362
2363     public GroupInfo getGroup(GroupId groupId) {
2364         final GroupInfo group = account.getGroupStore().getGroup(groupId);
2365         if (group instanceof GroupInfoV2 && ((GroupInfoV2) group).getGroup() == null) {
2366             final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2367             ((GroupInfoV2) group).setGroup(groupHelper.getDecryptedGroup(groupSecretParams));
2368             account.getGroupStore().updateGroup(group);
2369         }
2370         return group;
2371     }
2372
2373     public List<IdentityInfo> getIdentities() {
2374         return account.getSignalProtocolStore().getIdentities();
2375     }
2376
2377     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2378         return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));
2379     }
2380
2381     /**
2382      * Trust this the identity with this fingerprint
2383      *
2384      * @param name        username of the identity
2385      * @param fingerprint Fingerprint
2386      */
2387     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2388         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2389         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2390         if (ids == null) {
2391             return false;
2392         }
2393         for (IdentityInfo id : ids) {
2394             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
2395                 continue;
2396             }
2397
2398             account.getSignalProtocolStore()
2399                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2400             try {
2401                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2402             } catch (IOException | UntrustedIdentityException e) {
2403                 e.printStackTrace();
2404             }
2405             account.save();
2406             return true;
2407         }
2408         return false;
2409     }
2410
2411     /**
2412      * Trust this the identity with this safety number
2413      *
2414      * @param name         username of the identity
2415      * @param safetyNumber Safety number
2416      */
2417     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2418         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2419         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2420         if (ids == null) {
2421             return false;
2422         }
2423         for (IdentityInfo id : ids) {
2424             if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {
2425                 continue;
2426             }
2427
2428             account.getSignalProtocolStore()
2429                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2430             try {
2431                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2432             } catch (IOException | UntrustedIdentityException e) {
2433                 e.printStackTrace();
2434             }
2435             account.save();
2436             return true;
2437         }
2438         return false;
2439     }
2440
2441     /**
2442      * Trust all keys of this identity without verification
2443      *
2444      * @param name username of the identity
2445      */
2446     public boolean trustIdentityAllKeys(String name) {
2447         SignalServiceAddress address = resolveSignalServiceAddress(name);
2448         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2449         if (ids == null) {
2450             return false;
2451         }
2452         for (IdentityInfo id : ids) {
2453             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2454                 account.getSignalProtocolStore()
2455                         .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2456                 try {
2457                     sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2458                 } catch (IOException | UntrustedIdentityException e) {
2459                     e.printStackTrace();
2460                 }
2461             }
2462         }
2463         account.save();
2464         return true;
2465     }
2466
2467     public String computeSafetyNumber(
2468             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2469     ) {
2470         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2471                 account.getSelfAddress(),
2472                 getIdentityKeyPair().getPublicKey(),
2473                 theirAddress,
2474                 theirIdentityKey);
2475     }
2476
2477     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2478         String canonicalizedNumber = UuidUtil.isUuid(identifier)
2479                 ? identifier
2480                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2481         return resolveSignalServiceAddress(canonicalizedNumber);
2482     }
2483
2484     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2485         SignalServiceAddress address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2486
2487         return resolveSignalServiceAddress(address);
2488     }
2489
2490     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2491         if (address.matches(account.getSelfAddress())) {
2492             return account.getSelfAddress();
2493         }
2494
2495         return account.getRecipientStore().resolveServiceAddress(address);
2496     }
2497
2498     @Override
2499     public void close() throws IOException {
2500         close(true);
2501     }
2502
2503     void close(boolean closeAccount) throws IOException {
2504         if (messagePipe != null) {
2505             messagePipe.shutdown();
2506             messagePipe = null;
2507         }
2508
2509         if (unidentifiedMessagePipe != null) {
2510             unidentifiedMessagePipe.shutdown();
2511             unidentifiedMessagePipe = null;
2512         }
2513
2514         if (closeAccount && account != null) {
2515             account.close();
2516         }
2517         account = null;
2518     }
2519
2520     public interface ReceiveMessageHandler {
2521
2522         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2523     }
2524 }