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