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