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