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