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