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