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.KeysMessage;
 118 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 119 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 120 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 121 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 122 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 123 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 124 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 125 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 126 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 127 import org.whispersystems.signalservice.api.storage.StorageKey;
 128 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 129 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 130 import org.whispersystems.signalservice.api.util.SleepTimer;
 131 import org.whispersystems.signalservice.api.util.StreamDetails;
 132 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 133 import org.whispersystems.signalservice.api.util.UuidUtil;
 134 import org.whispersystems.signalservice.internal.configuration.SignalServiceConfiguration;
 135 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 136 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 137 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 138 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 139 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 140 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 141 import org.whispersystems.signalservice.internal.util.Hex;
 142 import org.whispersystems.signalservice.internal.util.Util;
 143
 144 import java.io.Closeable;
 145 import java.io.File;
 146 import java.io.FileInputStream;
 147 import java.io.FileOutputStream;
 148 import java.io.IOException;
 149 import java.io.InputStream;
 150 import java.io.OutputStream;
 151 import java.net.URI;
 152 import java.net.URISyntaxException;
 153 import java.net.URLEncoder;
 154 import java.nio.charset.StandardCharsets;
 155 import java.nio.file.Files;
 156 import java.security.SignatureException;
 157 import java.util.ArrayList;
 158 import java.util.Arrays;
 159 import java.util.Collection;
 160 import java.util.Date;
 161 import java.util.HashMap;
 162 import java.util.HashSet;
 163 import java.util.List;
 164 import java.util.Map;
 165 import java.util.Set;
 166 import java.util.UUID;
 167 import java.util.concurrent.ExecutorService;
 168 import java.util.concurrent.TimeUnit;
 169 import java.util.concurrent.TimeoutException;
 170 import java.util.stream.Collectors;
 171
 172 import static org.asamk.signal.manager.ServiceConfig.CDS_MRENCLAVE;
 173 import static org.asamk.signal.manager.ServiceConfig.capabilities;
 174 import static org.asamk.signal.manager.ServiceConfig.getIasKeyStore;
 175
 176 public class Manager implements Closeable {
 177
 178     private final static Logger logger = LoggerFactory.getLogger(Manager.class);
 179
 180     private final CertificateValidator certificateValidator = new CertificateValidator(ServiceConfig.getUnidentifiedSenderTrustRoot());
 181
 182     private final SignalServiceConfiguration serviceConfiguration;
 183     private final String userAgent;
 184
 185     private SignalAccount account;
 186     private final SignalServiceAccountManager accountManager;
 187     private final GroupsV2Api groupsV2Api;
 188     private final GroupsV2Operations groupsV2Operations;
 189     private final SignalServiceMessageReceiver messageReceiver;
 190     private final ClientZkProfileOperations clientZkProfileOperations;
 191
 192     private SignalServiceMessagePipe messagePipe = null;
 193     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 194
 195     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 196     private final ProfileHelper profileHelper;
 197     private final GroupHelper groupHelper;
 198     private final PinHelper pinHelper;
 199     private final AvatarStore avatarStore;
 200     private final AttachmentStore attachmentStore;
 201
 202     Manager(
 203             SignalAccount account,
 204             PathConfig pathConfig,
 205             SignalServiceConfiguration serviceConfiguration,
 206             String userAgent
 207     ) {
 208         this.account = account;
 209         this.serviceConfiguration = serviceConfiguration;
 210         this.userAgent = userAgent;
 211         this.groupsV2Operations = capabilities.isGv2() ? new GroupsV2Operations(ClientZkOperations.create(
 212                 serviceConfiguration)) : null;
 213         final SleepTimer timer = new UptimeSleepTimer();
 214         this.accountManager = new SignalServiceAccountManager(serviceConfiguration,
 215                 new DynamicCredentialsProvider(account.getUuid(),
 216                         account.getUsername(),
 217                         account.getPassword(),
 218                         account.getSignalingKey(),
 219                         account.getDeviceId()),
 220                 userAgent,
 221                 groupsV2Operations,
 222                 timer);
 223         this.groupsV2Api = accountManager.getGroupsV2Api();
 224         final KeyBackupService keyBackupService = ServiceConfig.createKeyBackupService(accountManager);
 225         this.pinHelper = new PinHelper(keyBackupService);
 226         this.clientZkProfileOperations = capabilities.isGv2() ? ClientZkOperations.create(serviceConfiguration)
 227                 .getProfileOperations() : null;
 228         this.messageReceiver = new SignalServiceMessageReceiver(serviceConfiguration,
 229                 account.getUuid(),
 230                 account.getUsername(),
 231                 account.getPassword(),
 232                 account.getDeviceId(),
 233                 account.getSignalingKey(),
 234                 userAgent,
 235                 null,
 236                 timer,
 237                 clientZkProfileOperations);
 238
 239         this.account.setResolver(this::resolveSignalServiceAddress);
 240
 241         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 242                 account.getProfileStore()::getProfileKey,
 243                 this::getRecipientProfile,
 244                 this::getSenderCertificate);
 245         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 246                 unidentifiedAccessHelper::getAccessFor,
 247                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 248                 () -> messageReceiver);
 249         this.groupHelper = new GroupHelper(this::getRecipientProfileKeyCredential,
 250                 this::getRecipientProfile,
 251                 account::getSelfAddress,
 252                 groupsV2Operations,
 253                 groupsV2Api,
 254                 this::getGroupAuthForToday);
 255         this.avatarStore = new AvatarStore(pathConfig.getAvatarsPath());
 256         this.attachmentStore = new AttachmentStore(pathConfig.getAttachmentsPath());
 257     }
 258
 259     public String getUsername() {
 260         return account.getUsername();
 261     }
 262
 263     public SignalServiceAddress getSelfAddress() {
 264         return account.getSelfAddress();
 265     }
 266
 267     private IdentityKeyPair getIdentityKeyPair() {
 268         return account.getSignalProtocolStore().getIdentityKeyPair();
 269     }
 270
 271     public int getDeviceId() {
 272         return account.getDeviceId();
 273     }
 274
 275     public static Manager init(
 276             String username, File settingsPath, SignalServiceConfiguration serviceConfiguration, String userAgent
 277     ) throws IOException, NotRegisteredException {
 278         PathConfig pathConfig = PathConfig.createDefault(settingsPath);
 279
 280         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 281             throw new NotRegisteredException();
 282         }
 283
 284         SignalAccount account = SignalAccount.load(pathConfig.getDataPath(), username);
 285
 286         if (!account.isRegistered()) {
 287             throw new NotRegisteredException();
 288         }
 289
 290         return new Manager(account, pathConfig, serviceConfiguration, userAgent);
 291     }
 292
 293     public static List<String> getAllLocalUsernames(File settingsPath) {
 294         PathConfig pathConfig = PathConfig.createDefault(settingsPath);
 295         final File dataPath = pathConfig.getDataPath();
 296         final File[] files = dataPath.listFiles();
 297
 298         if (files == null) {
 299             return List.of();
 300         }
 301
 302         return Arrays.stream(files)
 303                 .filter(File::isFile)
 304                 .map(File::getName)
 305                 .filter(file -> PhoneNumberFormatter.isValidNumber(file, null))
 306                 .collect(Collectors.toList());
 307     }
 308
 309     public void checkAccountState() throws IOException {
 310         if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 311             refreshPreKeys();
 312             account.save();
 313         }
 314         if (account.getUuid() == null) {
 315             account.setUuid(accountManager.getOwnUuid());
 316             account.save();
 317         }
 318         updateAccountAttributes();
 319     }
 320
 321     /**
 322      * This is used for checking a set of phone numbers for registration on Signal
 323      *
 324      * @param numbers The set of phone number in question
 325      * @return A map of numbers to booleans. True if registered, false otherwise. Should never be null
 326      * @throws IOException if its unable to get the contacts to check if they're registered
 327      */
 328     public Map<String, Boolean> areUsersRegistered(Set<String> numbers) throws IOException {
 329         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 330         Map<String, UUID> contactDetails = getRegisteredUsers(numbers);
 331
 332         Set<String> registeredUsers = contactDetails.keySet();
 333
 334         return numbers.stream().collect(Collectors.toMap(x -> x, registeredUsers::contains));
 335     }
 336
 337     public void updateAccountAttributes() throws IOException {
 338         accountManager.setAccountAttributes(account.getSignalingKey(),
 339                 account.getSignalProtocolStore().getLocalRegistrationId(),
 340                 true,
 341                 // set legacy pin only if no KBS master key is set
 342                 account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 343                 account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 344                 account.getSelfUnidentifiedAccessKey(),
 345                 account.isUnrestrictedUnidentifiedAccess(),
 346                 capabilities,
 347                 account.isDiscoverableByPhoneNumber());
 348     }
 349
 350     /**
 351      * @param avatar if avatar is null the image from the local avatar store is used (if present),
 352      *               if it's Optional.absent(), the avatar will be removed
 353      */
 354     public void setProfile(String name, Optional<File> avatar) throws IOException {
 355         try (final StreamDetails streamDetails = avatar == null
 356                 ? avatarStore.retrieveProfileAvatar(getSelfAddress())
 357                 : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 358             accountManager.setVersionedProfile(account.getUuid(), account.getProfileKey(), name, streamDetails);
 359         }
 360
 361         if (avatar != null) {
 362             if (avatar.isPresent()) {
 363                 avatarStore.storeProfileAvatar(getSelfAddress(),
 364                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 365             } else {
 366                 avatarStore.deleteProfileAvatar(getSelfAddress());
 367             }
 368         }
 369
 370         try {
 371             sendSyncMessage(SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE));
 372         } catch (UntrustedIdentityException ignored) {
 373         }
 374     }
 375
 376     public void unregister() throws IOException {
 377         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 378         // If this is the master device, other users can't send messages to this number anymore.
 379         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 380         accountManager.setGcmId(Optional.absent());
 381
 382         account.setRegistered(false);
 383         account.save();
 384     }
 385
 386     public List<DeviceInfo> getLinkedDevices() throws IOException {
 387         List<DeviceInfo> devices = accountManager.getDevices();
 388         account.setMultiDevice(devices.size() > 1);
 389         account.save();
 390         return devices;
 391     }
 392
 393     public void removeLinkedDevices(int deviceId) throws IOException {
 394         accountManager.removeDevice(deviceId);
 395         List<DeviceInfo> devices = accountManager.getDevices();
 396         account.setMultiDevice(devices.size() > 1);
 397         account.save();
 398     }
 399
 400     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 401         DeviceLinkInfo info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 402
 403         addDevice(info.deviceIdentifier, info.deviceKey);
 404     }
 405
 406     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 407         IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 408         String verificationCode = accountManager.getNewDeviceVerificationCode();
 409
 410         accountManager.addDevice(deviceIdentifier,
 411                 deviceKey,
 412                 identityKeyPair,
 413                 Optional.of(account.getProfileKey().serialize()),
 414                 verificationCode);
 415         account.setMultiDevice(true);
 416         account.save();
 417     }
 418
 419     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 420         if (!account.isMasterDevice()) {
 421             throw new RuntimeException("Only master device can set a PIN");
 422         }
 423         if (pin.isPresent()) {
 424             final MasterKey masterKey = account.getPinMasterKey() != null
 425                     ? account.getPinMasterKey()
 426                     : KeyUtils.createMasterKey();
 427
 428             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 429
 430             account.setRegistrationLockPin(pin.get());
 431             account.setPinMasterKey(masterKey);
 432         } else {
 433             // Remove legacy registration lock
 434             accountManager.removeRegistrationLockV1();
 435
 436             // Remove KBS Pin
 437             pinHelper.removeRegistrationLockPin();
 438
 439             account.setRegistrationLockPin(null);
 440             account.setPinMasterKey(null);
 441         }
 442         account.save();
 443     }
 444
 445     void refreshPreKeys() throws IOException {
 446         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 447         final IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 448         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 449
 450         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 451     }
 452
 453     private List<PreKeyRecord> generatePreKeys() {
 454         final int offset = account.getPreKeyIdOffset();
 455
 456         List<PreKeyRecord> records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 457         account.addPreKeys(records);
 458         account.save();
 459
 460         return records;
 461     }
 462
 463     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 464         final int signedPreKeyId = account.getNextSignedPreKeyId();
 465
 466         SignedPreKeyRecord record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 467         account.addSignedPreKey(record);
 468         account.save();
 469
 470         return record;
 471     }
 472
 473     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 474         if (messagePipe == null) {
 475             messagePipe = messageReceiver.createMessagePipe();
 476         }
 477         return messagePipe;
 478     }
 479
 480     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 481         if (unidentifiedMessagePipe == null) {
 482             unidentifiedMessagePipe = messageReceiver.createUnidentifiedMessagePipe();
 483         }
 484         return unidentifiedMessagePipe;
 485     }
 486
 487     private SignalServiceMessageSender createMessageSender() {
 488         final ExecutorService executor = null;
 489         return new SignalServiceMessageSender(serviceConfiguration,
 490                 account.getUuid(),
 491                 account.getUsername(),
 492                 account.getPassword(),
 493                 account.getDeviceId(),
 494                 account.getSignalProtocolStore(),
 495                 userAgent,
 496                 account.isMultiDevice(),
 497                 Optional.fromNullable(messagePipe),
 498                 Optional.fromNullable(unidentifiedMessagePipe),
 499                 Optional.absent(),
 500                 clientZkProfileOperations,
 501                 executor,
 502                 ServiceConfig.MAX_ENVELOPE_SIZE);
 503     }
 504
 505     private SignalProfile getRecipientProfile(
 506             SignalServiceAddress address
 507     ) {
 508         return getRecipientProfile(address, false);
 509     }
 510
 511     private SignalProfile getRecipientProfile(
 512             SignalServiceAddress address, boolean force
 513     ) {
 514         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
 515         if (profileEntry == null) {
 516             return null;
 517         }
 518         long now = new Date().getTime();
 519         // Profiles are cached for 24h before retrieving them again
 520         if (!profileEntry.isRequestPending() && (
 521                 force
 522                         || profileEntry.getProfile() == null
 523                         || now - profileEntry.getLastUpdateTimestamp() > 24 * 60 * 60 * 1000
 524         )) {
 525             profileEntry.setRequestPending(true);
 526             final SignalServiceProfile encryptedProfile;
 527             try {
 528                 encryptedProfile = profileHelper.retrieveProfileSync(address, SignalServiceProfile.RequestType.PROFILE)
 529                         .getProfile();
 530             } catch (IOException e) {
 531                 logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 532                 return null;
 533             } finally {
 534                 profileEntry.setRequestPending(false);
 535             }
 536
 537             final ProfileKey profileKey = profileEntry.getProfileKey();
 538             final SignalProfile profile = decryptProfileAndDownloadAvatar(address, profileKey, encryptedProfile);
 539             account.getProfileStore()
 540                     .updateProfile(address, profileKey, now, profile, profileEntry.getProfileKeyCredential());
 541             return profile;
 542         }
 543         return profileEntry.getProfile();
 544     }
 545
 546     private ProfileKeyCredential getRecipientProfileKeyCredential(SignalServiceAddress address) {
 547         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
 548         if (profileEntry == null) {
 549             return null;
 550         }
 551         if (profileEntry.getProfileKeyCredential() == null) {
 552             ProfileAndCredential profileAndCredential;
 553             try {
 554                 profileAndCredential = profileHelper.retrieveProfileSync(address,
 555                         SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 556             } catch (IOException e) {
 557                 logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 558                 return null;
 559             }
 560
 561             long now = new Date().getTime();
 562             final ProfileKeyCredential profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 563             final SignalProfile profile = decryptProfileAndDownloadAvatar(address,
 564                     profileEntry.getProfileKey(),
 565                     profileAndCredential.getProfile());
 566             account.getProfileStore()
 567                     .updateProfile(address, profileEntry.getProfileKey(), now, profile, profileKeyCredential);
 568             return profileKeyCredential;
 569         }
 570         return profileEntry.getProfileKeyCredential();
 571     }
 572
 573     private SignalProfile decryptProfileAndDownloadAvatar(
 574             final SignalServiceAddress address, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 575     ) {
 576         if (encryptedProfile.getAvatar() != null) {
 577             downloadProfileAvatar(address, encryptedProfile.getAvatar(), profileKey);
 578         }
 579
 580         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 581     }
 582
 583     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 584         final StreamDetails streamDetails = avatarStore.retrieveGroupAvatar(groupId);
 585         if (streamDetails == null) {
 586             return Optional.absent();
 587         }
 588
 589         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 590     }
 591
 592     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(SignalServiceAddress address) throws IOException {
 593         final StreamDetails streamDetails = avatarStore.retrieveContactAvatar(address);
 594         if (streamDetails == null) {
 595             return Optional.absent();
 596         }
 597
 598         return Optional.of(AttachmentUtils.createAttachment(streamDetails, Optional.absent()));
 599     }
 600
 601     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 602         GroupInfo g = getGroup(groupId);
 603         if (g == null) {
 604             throw new GroupNotFoundException(groupId);
 605         }
 606         if (!g.isMember(account.getSelfAddress())) {
 607             throw new NotAGroupMemberException(groupId, g.getTitle());
 608         }
 609         return g;
 610     }
 611
 612     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 613         GroupInfo g = getGroup(groupId);
 614         if (g == null) {
 615             throw new GroupNotFoundException(groupId);
 616         }
 617         if (!g.isMember(account.getSelfAddress()) && !g.isPendingMember(account.getSelfAddress())) {
 618             throw new NotAGroupMemberException(groupId, g.getTitle());
 619         }
 620         return g;
 621     }
 622
 623     public List<GroupInfo> getGroups() {
 624         return account.getGroupStore().getGroups();
 625     }
 626
 627     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 628             String messageText, List<String> attachments, GroupId groupId
 629     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 630         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 631                 .withBody(messageText);
 632         if (attachments != null) {
 633             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 634         }
 635
 636         return sendGroupMessage(messageBuilder, groupId);
 637     }
 638
 639     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 640             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 641     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 642         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
 643                 remove,
 644                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
 645                 targetSentTimestamp);
 646         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 647                 .withReaction(reaction);
 648
 649         return sendGroupMessage(messageBuilder, groupId);
 650     }
 651
 652     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 653             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 654     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 655         final GroupInfo g = getGroupForSending(groupId);
 656
 657         GroupUtils.setGroupContext(messageBuilder, g);
 658         messageBuilder.withExpiration(g.getMessageExpirationTime());
 659
 660         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 661     }
 662
 663     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(GroupId groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 664         SignalServiceDataMessage.Builder messageBuilder;
 665
 666         final GroupInfo g = getGroupForUpdating(groupId);
 667         if (g instanceof GroupInfoV1) {
 668             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
 669             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 670                     .withId(groupId.serialize())
 671                     .build();
 672             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 673             groupInfoV1.removeMember(account.getSelfAddress());
 674             account.getGroupStore().updateGroup(groupInfoV1);
 675         } else {
 676             final GroupInfoV2 groupInfoV2 = (GroupInfoV2) g;
 677             final Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.leaveGroup(groupInfoV2);
 678             groupInfoV2.setGroup(groupGroupChangePair.first());
 679             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 680             account.getGroupStore().updateGroup(groupInfoV2);
 681         }
 682
 683         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 684     }
 685
 686     public Pair<GroupId, List<SendMessageResult>> updateGroup(
 687             GroupId groupId, String name, List<String> members, File avatarFile
 688     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 689         return sendUpdateGroupMessage(groupId,
 690                 name,
 691                 members == null ? null : getSignalServiceAddresses(members),
 692                 avatarFile);
 693     }
 694
 695     private Pair<GroupId, List<SendMessageResult>> sendUpdateGroupMessage(
 696             GroupId groupId, String name, Collection<SignalServiceAddress> members, File avatarFile
 697     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 698         GroupInfo g;
 699         SignalServiceDataMessage.Builder messageBuilder;
 700         if (groupId == null) {
 701             // Create new group
 702             GroupInfoV2 gv2 = groupHelper.createGroupV2(name == null ? "" : name,
 703                     members == null ? List.of() : members,
 704                     avatarFile);
 705             if (gv2 == null) {
 706                 GroupInfoV1 gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 707                 gv1.addMembers(List.of(account.getSelfAddress()));
 708                 updateGroupV1(gv1, name, members, avatarFile);
 709                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 710                 g = gv1;
 711             } else {
 712                 if (avatarFile != null) {
 713                     avatarStore.storeGroupAvatar(gv2.getGroupId(),
 714                             outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 715                 }
 716                 messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 717                 g = gv2;
 718             }
 719         } else {
 720             GroupInfo group = getGroupForUpdating(groupId);
 721             if (group instanceof GroupInfoV2) {
 722                 final GroupInfoV2 groupInfoV2 = (GroupInfoV2) group;
 723
 724                 Pair<Long, List<SendMessageResult>> result = null;
 725                 if (groupInfoV2.isPendingMember(getSelfAddress())) {
 726                     Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.acceptInvite(groupInfoV2);
 727                     result = sendUpdateGroupMessage(groupInfoV2,
 728                             groupGroupChangePair.first(),
 729                             groupGroupChangePair.second());
 730                 }
 731
 732                 if (members != null) {
 733                     final Set<SignalServiceAddress> newMembers = new HashSet<>(members);
 734                     newMembers.removeAll(group.getMembers()
 735                             .stream()
 736                             .map(this::resolveSignalServiceAddress)
 737                             .collect(Collectors.toSet()));
 738                     if (newMembers.size() > 0) {
 739                         Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2,
 740                                 newMembers);
 741                         result = sendUpdateGroupMessage(groupInfoV2,
 742                                 groupGroupChangePair.first(),
 743                                 groupGroupChangePair.second());
 744                     }
 745                 }
 746                 if (result == null || name != null || avatarFile != null) {
 747                     Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2,
 748                             name,
 749                             avatarFile);
 750                     if (avatarFile != null) {
 751                         avatarStore.storeGroupAvatar(groupInfoV2.getGroupId(),
 752                                 outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 753                     }
 754                     result = sendUpdateGroupMessage(groupInfoV2,
 755                             groupGroupChangePair.first(),
 756                             groupGroupChangePair.second());
 757                 }
 758
 759                 return new Pair<>(group.getGroupId(), result.second());
 760             } else {
 761                 GroupInfoV1 gv1 = (GroupInfoV1) group;
 762                 updateGroupV1(gv1, name, members, avatarFile);
 763                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 764                 g = gv1;
 765             }
 766         }
 767
 768         account.getGroupStore().updateGroup(g);
 769
 770         final Pair<Long, List<SendMessageResult>> result = sendMessage(messageBuilder,
 771                 g.getMembersIncludingPendingWithout(account.getSelfAddress()));
 772         return new Pair<>(g.getGroupId(), result.second());
 773     }
 774
 775     private void updateGroupV1(
 776             final GroupInfoV1 g,
 777             final String name,
 778             final Collection<SignalServiceAddress> members,
 779             final File avatarFile
 780     ) throws IOException {
 781         if (name != null) {
 782             g.name = name;
 783         }
 784
 785         if (members != null) {
 786             final Set<String> newE164Members = new HashSet<>();
 787             for (SignalServiceAddress member : members) {
 788                 if (g.isMember(member) || !member.getNumber().isPresent()) {
 789                     continue;
 790                 }
 791                 newE164Members.add(member.getNumber().get());
 792             }
 793
 794             final Map<String, UUID> registeredUsers = getRegisteredUsers(newE164Members);
 795             if (registeredUsers.size() != newE164Members.size()) {
 796                 // Some of the new members are not registered on Signal
 797                 newE164Members.removeAll(registeredUsers.keySet());
 798                 throw new IOException("Failed to add members "
 799                         + String.join(", ", newE164Members)
 800                         + " to group: Not registered on Signal");
 801             }
 802
 803             g.addMembers(members);
 804         }
 805
 806         if (avatarFile != null) {
 807             avatarStore.storeGroupAvatar(g.getGroupId(),
 808                     outputStream -> IOUtils.copyFileToStream(avatarFile, outputStream));
 809         }
 810     }
 811
 812     public Pair<GroupId, List<SendMessageResult>> joinGroup(
 813             GroupInviteLinkUrl inviteLinkUrl
 814     ) throws IOException, GroupLinkNotActiveException {
 815         return sendJoinGroupMessage(inviteLinkUrl);
 816     }
 817
 818     private Pair<GroupId, List<SendMessageResult>> sendJoinGroupMessage(
 819             GroupInviteLinkUrl inviteLinkUrl
 820     ) throws IOException, GroupLinkNotActiveException {
 821         final DecryptedGroupJoinInfo groupJoinInfo = groupHelper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
 822                 inviteLinkUrl.getPassword());
 823         final GroupChange groupChange = groupHelper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
 824                 inviteLinkUrl.getPassword(),
 825                 groupJoinInfo);
 826         final GroupInfoV2 group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
 827                 groupJoinInfo.getRevision() + 1,
 828                 groupChange.toByteArray());
 829
 830         if (group.getGroup() == null) {
 831             // Only requested member, can't send update to group members
 832             return new Pair<>(group.getGroupId(), List.of());
 833         }
 834
 835         final Pair<Long, List<SendMessageResult>> result = sendUpdateGroupMessage(group, group.getGroup(), groupChange);
 836
 837         return new Pair<>(group.getGroupId(), result.second());
 838     }
 839
 840     private static int currentTimeDays() {
 841         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
 842     }
 843
 844     private GroupsV2AuthorizationString getGroupAuthForToday(
 845             final GroupSecretParams groupSecretParams
 846     ) throws IOException {
 847         final int today = currentTimeDays();
 848         // Returns credentials for the next 7 days
 849         final HashMap<Integer, AuthCredentialResponse> credentials = groupsV2Api.getCredentials(today);
 850         // TODO cache credentials until they expire
 851         AuthCredentialResponse authCredentialResponse = credentials.get(today);
 852         try {
 853             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
 854                     today,
 855                     groupSecretParams,
 856                     authCredentialResponse);
 857         } catch (VerificationFailedException e) {
 858             throw new IOException(e);
 859         }
 860     }
 861
 862     private Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 863             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
 864     ) throws IOException {
 865         group.setGroup(newDecryptedGroup);
 866         final SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(group,
 867                 groupChange.toByteArray());
 868         account.getGroupStore().updateGroup(group);
 869         return sendMessage(messageBuilder, group.getMembersIncludingPendingWithout(account.getSelfAddress()));
 870     }
 871
 872     Pair<Long, List<SendMessageResult>> sendGroupInfoMessage(
 873             GroupIdV1 groupId, SignalServiceAddress recipient
 874     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 875         GroupInfoV1 g;
 876         GroupInfo group = getGroupForSending(groupId);
 877         if (!(group instanceof GroupInfoV1)) {
 878             throw new RuntimeException("Received an invalid group request for a v2 group!");
 879         }
 880         g = (GroupInfoV1) group;
 881
 882         if (!g.isMember(recipient)) {
 883             throw new NotAGroupMemberException(groupId, g.name);
 884         }
 885
 886         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 887
 888         // Send group message only to the recipient who requested it
 889         return sendMessage(messageBuilder, List.of(recipient));
 890     }
 891
 892     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 893         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 894                 .withId(g.getGroupId().serialize())
 895                 .withName(g.name)
 896                 .withMembers(new ArrayList<>(g.getMembers()));
 897
 898         try {
 899             final Optional<SignalServiceAttachmentStream> attachment = createGroupAvatarAttachment(g.getGroupId());
 900             if (attachment.isPresent()) {
 901                 group.withAvatar(attachment.get());
 902             }
 903         } catch (IOException e) {
 904             throw new AttachmentInvalidException(g.getGroupId().toBase64(), e);
 905         }
 906
 907         return SignalServiceDataMessage.newBuilder()
 908                 .asGroupMessage(group.build())
 909                 .withExpiration(g.getMessageExpirationTime());
 910     }
 911
 912     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
 913         SignalServiceGroupV2.Builder group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
 914                 .withRevision(g.getGroup().getRevision())
 915                 .withSignedGroupChange(signedGroupChange);
 916         return SignalServiceDataMessage.newBuilder()
 917                 .asGroupMessage(group.build())
 918                 .withExpiration(g.getMessageExpirationTime());
 919     }
 920
 921     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
 922             GroupIdV1 groupId, SignalServiceAddress recipient
 923     ) throws IOException {
 924         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 925                 .withId(groupId.serialize());
 926
 927         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 928                 .asGroupMessage(group.build());
 929
 930         // Send group info request message to the recipient who sent us a message with this groupId
 931         return sendMessage(messageBuilder, List.of(recipient));
 932     }
 933
 934     void sendReceipt(
 935             SignalServiceAddress remoteAddress, long messageId
 936     ) throws IOException, UntrustedIdentityException {
 937         SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
 938                 List.of(messageId),
 939                 System.currentTimeMillis());
 940
 941         createMessageSender().sendReceipt(remoteAddress,
 942                 unidentifiedAccessHelper.getAccessFor(remoteAddress),
 943                 receiptMessage);
 944     }
 945
 946     public Pair<Long, List<SendMessageResult>> sendMessage(
 947             String messageText, List<String> attachments, List<String> recipients
 948     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
 949         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 950                 .withBody(messageText);
 951         if (attachments != null) {
 952             List<SignalServiceAttachment> attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
 953
 954             // Upload attachments here, so we only upload once even for multiple recipients
 955             SignalServiceMessageSender messageSender = createMessageSender();
 956             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 957             for (SignalServiceAttachment attachment : attachmentStreams) {
 958                 if (attachment.isStream()) {
 959                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 960                 } else if (attachment.isPointer()) {
 961                     attachmentPointers.add(attachment.asPointer());
 962                 }
 963             }
 964
 965             messageBuilder.withAttachments(attachmentPointers);
 966         }
 967         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
 968     }
 969
 970     public Pair<Long, SendMessageResult> sendSelfMessage(
 971             String messageText, List<String> attachments
 972     ) throws IOException, AttachmentInvalidException {
 973         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 974                 .withBody(messageText);
 975         if (attachments != null) {
 976             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 977         }
 978         return sendSelfMessage(messageBuilder);
 979     }
 980
 981     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
 982             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
 983     ) throws IOException, InvalidNumberException {
 984         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
 985                 remove,
 986                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
 987                 targetSentTimestamp);
 988         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 989                 .withReaction(reaction);
 990         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
 991     }
 992
 993     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
 994         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
 995
 996         final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
 997         try {
 998             return sendMessage(messageBuilder, signalServiceAddresses);
 999         } catch (Exception e) {
1000             for (SignalServiceAddress address : signalServiceAddresses) {
1001                 handleEndSession(address);
1002             }
1003             account.save();
1004             throw e;
1005         }
1006     }
1007
1008     public String getContactName(String number) throws InvalidNumberException {
1009         ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));
1010         if (contact == null) {
1011             return "";
1012         } else {
1013             return contact.name;
1014         }
1015     }
1016
1017     public void setContactName(String number, String name) throws InvalidNumberException {
1018         final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
1019         ContactInfo contact = account.getContactStore().getContact(address);
1020         if (contact == null) {
1021             contact = new ContactInfo(address);
1022         }
1023         contact.name = name;
1024         account.getContactStore().updateContact(contact);
1025         account.save();
1026     }
1027
1028     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
1029         setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
1030     }
1031
1032     private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
1033         ContactInfo contact = account.getContactStore().getContact(address);
1034         if (contact == null) {
1035             contact = new ContactInfo(address);
1036         }
1037         contact.blocked = blocked;
1038         account.getContactStore().updateContact(contact);
1039         account.save();
1040     }
1041
1042     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1043         GroupInfo group = getGroup(groupId);
1044         if (group == null) {
1045             throw new GroupNotFoundException(groupId);
1046         }
1047
1048         group.setBlocked(blocked);
1049         account.getGroupStore().updateGroup(group);
1050         account.save();
1051     }
1052
1053     /**
1054      * Change the expiration timer for a contact
1055      */
1056     public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) throws IOException {
1057         ContactInfo contact = account.getContactStore().getContact(address);
1058         contact.messageExpirationTime = messageExpirationTimer;
1059         account.getContactStore().updateContact(contact);
1060         sendExpirationTimerUpdate(address);
1061         account.save();
1062     }
1063
1064     private void sendExpirationTimerUpdate(SignalServiceAddress address) throws IOException {
1065         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1066                 .asExpirationUpdate();
1067         sendMessage(messageBuilder, List.of(address));
1068     }
1069
1070     /**
1071      * Change the expiration timer for a contact
1072      */
1073     public void setExpirationTimer(
1074             String number, int messageExpirationTimer
1075     ) throws IOException, InvalidNumberException {
1076         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
1077         setExpirationTimer(address, messageExpirationTimer);
1078     }
1079
1080     /**
1081      * Change the expiration timer for a group
1082      */
1083     public void setExpirationTimer(GroupId groupId, int messageExpirationTimer) {
1084         GroupInfo g = getGroup(groupId);
1085         if (g instanceof GroupInfoV1) {
1086             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
1087             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1088             account.getGroupStore().updateGroup(groupInfoV1);
1089         } else {
1090             throw new RuntimeException("TODO Not implemented!");
1091         }
1092     }
1093
1094     /**
1095      * Upload the sticker pack from path.
1096      *
1097      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1098      * @return if successful, returns the URL to install the sticker pack in the signal app
1099      */
1100     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1101         SignalServiceStickerManifestUpload manifest = StickerUtils.getSignalServiceStickerManifestUpload(path);
1102
1103         SignalServiceMessageSender messageSender = createMessageSender();
1104
1105         byte[] packKey = KeyUtils.createStickerUploadKey();
1106         String packId = messageSender.uploadStickerManifest(manifest, packKey);
1107
1108         Sticker sticker = new Sticker(Hex.fromStringCondensed(packId), packKey);
1109         account.getStickerStore().updateSticker(sticker);
1110         account.save();
1111
1112         try {
1113             return new URI("https",
1114                     "signal.art",
1115                     "/addstickers/",
1116                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1117                             Hex.toStringCondensed(packKey),
1118                             StandardCharsets.UTF_8)).toString();
1119         } catch (URISyntaxException e) {
1120             throw new AssertionError(e);
1121         }
1122     }
1123
1124     void requestSyncGroups() throws IOException {
1125         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1126                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1127                 .build();
1128         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1129         try {
1130             sendSyncMessage(message);
1131         } catch (UntrustedIdentityException e) {
1132             throw new AssertionError(e);
1133         }
1134     }
1135
1136     void requestSyncContacts() throws IOException {
1137         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1138                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1139                 .build();
1140         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1141         try {
1142             sendSyncMessage(message);
1143         } catch (UntrustedIdentityException e) {
1144             throw new AssertionError(e);
1145         }
1146     }
1147
1148     void requestSyncBlocked() throws IOException {
1149         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1150                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1151                 .build();
1152         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1153         try {
1154             sendSyncMessage(message);
1155         } catch (UntrustedIdentityException e) {
1156             throw new AssertionError(e);
1157         }
1158     }
1159
1160     void requestSyncConfiguration() throws IOException {
1161         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1162                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1163                 .build();
1164         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1165         try {
1166             sendSyncMessage(message);
1167         } catch (UntrustedIdentityException e) {
1168             throw new AssertionError(e);
1169         }
1170     }
1171
1172     void requestSyncKeys() throws IOException {
1173         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1174                 .setType(SignalServiceProtos.SyncMessage.Request.Type.KEYS)
1175                 .build();
1176         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1177         try {
1178             sendSyncMessage(message);
1179         } catch (UntrustedIdentityException e) {
1180             throw new AssertionError(e);
1181         }
1182     }
1183
1184     private byte[] getSenderCertificate() {
1185         // TODO support UUID capable sender certificates
1186         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1187         byte[] certificate;
1188         try {
1189             certificate = accountManager.getSenderCertificate();
1190         } catch (IOException e) {
1191             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1192             return null;
1193         }
1194         // TODO cache for a day
1195         return certificate;
1196     }
1197
1198     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1199         SignalServiceMessageSender messageSender = createMessageSender();
1200         try {
1201             messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1202         } catch (UntrustedIdentityException e) {
1203             account.getSignalProtocolStore()
1204                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1205                             e.getIdentityKey(),
1206                             TrustLevel.UNTRUSTED);
1207             throw e;
1208         }
1209     }
1210
1211     private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1212         final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
1213         final Set<SignalServiceAddress> addressesMissingUuid = new HashSet<>();
1214
1215         for (String number : numbers) {
1216             final SignalServiceAddress resolvedAddress = canonicalizeAndResolveSignalServiceAddress(number);
1217             if (resolvedAddress.getUuid().isPresent()) {
1218                 signalServiceAddresses.add(resolvedAddress);
1219             } else {
1220                 addressesMissingUuid.add(resolvedAddress);
1221             }
1222         }
1223
1224         final Set<String> numbersMissingUuid = addressesMissingUuid.stream()
1225                 .map(a -> a.getNumber().get())
1226                 .collect(Collectors.toSet());
1227         Map<String, UUID> registeredUsers;
1228         try {
1229             registeredUsers = getRegisteredUsers(numbersMissingUuid);
1230         } catch (IOException e) {
1231             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1232             registeredUsers = Map.of();
1233         }
1234
1235         for (SignalServiceAddress address : addressesMissingUuid) {
1236             final String number = address.getNumber().get();
1237             if (registeredUsers.containsKey(number)) {
1238                 final SignalServiceAddress newAddress = resolveSignalServiceAddress(new SignalServiceAddress(
1239                         registeredUsers.get(number),
1240                         number));
1241                 signalServiceAddresses.add(newAddress);
1242             } else {
1243                 signalServiceAddresses.add(address);
1244             }
1245         }
1246
1247         return signalServiceAddresses;
1248     }
1249
1250     private Map<String, UUID> getRegisteredUsers(final Set<String> numbersMissingUuid) throws IOException {
1251         try {
1252             return accountManager.getRegisteredUsers(getIasKeyStore(), numbersMissingUuid, CDS_MRENCLAVE);
1253         } catch (Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException e) {
1254             throw new IOException(e);
1255         }
1256     }
1257
1258     private Pair<Long, List<SendMessageResult>> sendMessage(
1259             SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients
1260     ) throws IOException {
1261         recipients = recipients.stream().map(this::resolveSignalServiceAddress).collect(Collectors.toSet());
1262         final long timestamp = System.currentTimeMillis();
1263         messageBuilder.withTimestamp(timestamp);
1264         getOrCreateMessagePipe();
1265         getOrCreateUnidentifiedMessagePipe();
1266         SignalServiceDataMessage message = null;
1267         try {
1268             message = messageBuilder.build();
1269             if (message.getGroupContext().isPresent()) {
1270                 try {
1271                     SignalServiceMessageSender messageSender = createMessageSender();
1272                     final boolean isRecipientUpdate = false;
1273                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients),
1274                             unidentifiedAccessHelper.getAccessFor(recipients),
1275                             isRecipientUpdate,
1276                             message);
1277                     for (SendMessageResult r : result) {
1278                         if (r.getIdentityFailure() != null) {
1279                             account.getSignalProtocolStore()
1280                                     .saveIdentity(r.getAddress(),
1281                                             r.getIdentityFailure().getIdentityKey(),
1282                                             TrustLevel.UNTRUSTED);
1283                         }
1284                     }
1285                     return new Pair<>(timestamp, result);
1286                 } catch (UntrustedIdentityException e) {
1287                     account.getSignalProtocolStore()
1288                             .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1289                                     e.getIdentityKey(),
1290                                     TrustLevel.UNTRUSTED);
1291                     return new Pair<>(timestamp, List.of());
1292                 }
1293             } else {
1294                 // Send to all individually, so sync messages are sent correctly
1295                 messageBuilder.withProfileKey(account.getProfileKey().serialize());
1296                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1297                 for (SignalServiceAddress address : recipients) {
1298                     final ContactInfo contact = account.getContactStore().getContact(address);
1299                     final int expirationTime = contact != null ? contact.messageExpirationTime : 0;
1300                     messageBuilder.withExpiration(expirationTime);
1301                     message = messageBuilder.build();
1302                     results.add(sendMessage(address, message));
1303                 }
1304                 return new Pair<>(timestamp, results);
1305             }
1306         } finally {
1307             if (message != null && message.isEndSession()) {
1308                 for (SignalServiceAddress recipient : recipients) {
1309                     handleEndSession(recipient);
1310                 }
1311             }
1312             account.save();
1313         }
1314     }
1315
1316     private Pair<Long, SendMessageResult> sendSelfMessage(
1317             SignalServiceDataMessage.Builder messageBuilder
1318     ) throws IOException {
1319         final long timestamp = System.currentTimeMillis();
1320         messageBuilder.withTimestamp(timestamp);
1321         getOrCreateMessagePipe();
1322         getOrCreateUnidentifiedMessagePipe();
1323         try {
1324             final SignalServiceAddress address = getSelfAddress();
1325
1326             final ContactInfo contact = account.getContactStore().getContact(address);
1327             final int expirationTime = contact != null ? contact.messageExpirationTime : 0;
1328             messageBuilder.withExpiration(expirationTime);
1329
1330             SignalServiceDataMessage message = messageBuilder.build();
1331             final SendMessageResult result = sendSelfMessage(message);
1332             return new Pair<>(timestamp, result);
1333         } finally {
1334             account.save();
1335         }
1336     }
1337
1338     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1339         SignalServiceMessageSender messageSender = createMessageSender();
1340
1341         SignalServiceAddress recipient = account.getSelfAddress();
1342
1343         final Optional<UnidentifiedAccessPair> unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipient);
1344         SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1345                 message.getTimestamp(),
1346                 message,
1347                 message.getExpiresInSeconds(),
1348                 Map.of(recipient, unidentifiedAccess.isPresent()),
1349                 false);
1350         SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1351
1352         try {
1353             long startTime = System.currentTimeMillis();
1354             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1355             return SendMessageResult.success(recipient,
1356                     unidentifiedAccess.isPresent(),
1357                     false,
1358                     System.currentTimeMillis() - startTime);
1359         } catch (UntrustedIdentityException e) {
1360             account.getSignalProtocolStore()
1361                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1362                             e.getIdentityKey(),
1363                             TrustLevel.UNTRUSTED);
1364             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1365         }
1366     }
1367
1368     private SendMessageResult sendMessage(
1369             SignalServiceAddress address, SignalServiceDataMessage message
1370     ) throws IOException {
1371         SignalServiceMessageSender messageSender = createMessageSender();
1372
1373         try {
1374             return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(address), message);
1375         } catch (UntrustedIdentityException e) {
1376             account.getSignalProtocolStore()
1377                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1378                             e.getIdentityKey(),
1379                             TrustLevel.UNTRUSTED);
1380             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1381         }
1382     }
1383
1384     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1385         SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(),
1386                 account.getSignalProtocolStore(),
1387                 certificateValidator);
1388         try {
1389             return cipher.decrypt(envelope);
1390         } catch (ProtocolUntrustedIdentityException e) {
1391             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1392                 org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e
1393                         .getCause();
1394                 account.getSignalProtocolStore()
1395                         .saveIdentity(resolveSignalServiceAddress(identityException.getName()),
1396                                 identityException.getUntrustedIdentity(),
1397                                 TrustLevel.UNTRUSTED);
1398                 throw identityException;
1399             }
1400             throw new AssertionError(e);
1401         }
1402     }
1403
1404     private void handleEndSession(SignalServiceAddress source) {
1405         account.getSignalProtocolStore().deleteAllSessions(source);
1406     }
1407
1408     private List<HandleAction> handleSignalServiceDataMessage(
1409             SignalServiceDataMessage message,
1410             boolean isSync,
1411             SignalServiceAddress source,
1412             SignalServiceAddress destination,
1413             boolean ignoreAttachments
1414     ) {
1415         List<HandleAction> actions = new ArrayList<>();
1416         if (message.getGroupContext().isPresent()) {
1417             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1418                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1419                 GroupIdV1 groupId = GroupId.v1(groupInfo.getGroupId());
1420                 GroupInfo group = getGroup(groupId);
1421                 if (group == null || group instanceof GroupInfoV1) {
1422                     GroupInfoV1 groupV1 = (GroupInfoV1) group;
1423                     switch (groupInfo.getType()) {
1424                         case UPDATE: {
1425                             if (groupV1 == null) {
1426                                 groupV1 = new GroupInfoV1(groupId);
1427                             }
1428
1429                             if (groupInfo.getAvatar().isPresent()) {
1430                                 SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1431                                 downloadGroupAvatar(avatar, groupV1.getGroupId());
1432                             }
1433
1434                             if (groupInfo.getName().isPresent()) {
1435                                 groupV1.name = groupInfo.getName().get();
1436                             }
1437
1438                             if (groupInfo.getMembers().isPresent()) {
1439                                 groupV1.addMembers(groupInfo.getMembers()
1440                                         .get()
1441                                         .stream()
1442                                         .map(this::resolveSignalServiceAddress)
1443                                         .collect(Collectors.toSet()));
1444                             }
1445
1446                             account.getGroupStore().updateGroup(groupV1);
1447                             break;
1448                         }
1449                         case DELIVER:
1450                             if (groupV1 == null && !isSync) {
1451                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1452                             }
1453                             break;
1454                         case QUIT: {
1455                             if (groupV1 != null) {
1456                                 groupV1.removeMember(source);
1457                                 account.getGroupStore().updateGroup(groupV1);
1458                             }
1459                             break;
1460                         }
1461                         case REQUEST_INFO:
1462                             if (groupV1 != null && !isSync) {
1463                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
1464                             }
1465                             break;
1466                     }
1467                 } else {
1468                     // Received a group v1 message for a v2 group
1469                 }
1470             }
1471             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1472                 final SignalServiceGroupV2 groupContext = message.getGroupContext().get().getGroupV2().get();
1473                 final GroupMasterKey groupMasterKey = groupContext.getMasterKey();
1474
1475                 getOrMigrateGroup(groupMasterKey,
1476                         groupContext.getRevision(),
1477                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1478             }
1479         }
1480
1481         final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;
1482         if (conversationPartnerAddress != null && message.isEndSession()) {
1483             handleEndSession(conversationPartnerAddress);
1484         }
1485         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1486             if (message.getGroupContext().isPresent()) {
1487                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1488                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1489                     GroupInfoV1 group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1490                     if (group != null) {
1491                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1492                             group.messageExpirationTime = message.getExpiresInSeconds();
1493                             account.getGroupStore().updateGroup(group);
1494                         }
1495                     }
1496                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1497                     // disappearing message timer already stored in the DecryptedGroup
1498                 }
1499             } else if (conversationPartnerAddress != null) {
1500                 ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
1501                 if (contact == null) {
1502                     contact = new ContactInfo(conversationPartnerAddress);
1503                 }
1504                 if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
1505                     contact.messageExpirationTime = message.getExpiresInSeconds();
1506                     account.getContactStore().updateContact(contact);
1507                 }
1508             }
1509         }
1510         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1511             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1512                 downloadAttachment(attachment);
1513             }
1514         }
1515         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1516             final ProfileKey profileKey;
1517             try {
1518                 profileKey = new ProfileKey(message.getProfileKey().get());
1519             } catch (InvalidInputException e) {
1520                 throw new AssertionError(e);
1521             }
1522             if (source.matches(account.getSelfAddress())) {
1523                 this.account.setProfileKey(profileKey);
1524             }
1525             this.account.getProfileStore().storeProfileKey(source, profileKey);
1526         }
1527         if (message.getPreviews().isPresent()) {
1528             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1529             for (SignalServiceDataMessage.Preview preview : previews) {
1530                 if (preview.getImage().isPresent()) {
1531                     downloadAttachment(preview.getImage().get());
1532                 }
1533             }
1534         }
1535         if (message.getQuote().isPresent()) {
1536             final SignalServiceDataMessage.Quote quote = message.getQuote().get();
1537
1538             for (SignalServiceDataMessage.Quote.QuotedAttachment quotedAttachment : quote.getAttachments()) {
1539                 final SignalServiceAttachment thumbnail = quotedAttachment.getThumbnail();
1540                 if (thumbnail != null) {
1541                     downloadAttachment(thumbnail);
1542                 }
1543             }
1544         }
1545         if (message.getSticker().isPresent()) {
1546             final SignalServiceDataMessage.Sticker messageSticker = message.getSticker().get();
1547             Sticker sticker = account.getStickerStore().getSticker(messageSticker.getPackId());
1548             if (sticker == null) {
1549                 sticker = new Sticker(messageSticker.getPackId(), messageSticker.getPackKey());
1550                 account.getStickerStore().updateSticker(sticker);
1551             }
1552         }
1553         return actions;
1554     }
1555
1556     private GroupInfoV2 getOrMigrateGroup(
1557             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1558     ) {
1559         final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1560
1561         GroupIdV2 groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1562         GroupInfo groupInfo = getGroup(groupId);
1563         final GroupInfoV2 groupInfoV2;
1564         if (groupInfo instanceof GroupInfoV1) {
1565             // Received a v2 group message for a v1 group, we need to locally migrate the group
1566             account.getGroupStore().deleteGroup(groupInfo.getGroupId());
1567             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1568             logger.info("Locally migrated group {} to group v2, id: {}",
1569                     groupInfo.getGroupId().toBase64(),
1570                     groupInfoV2.getGroupId().toBase64());
1571         } else if (groupInfo instanceof GroupInfoV2) {
1572             groupInfoV2 = (GroupInfoV2) groupInfo;
1573         } else {
1574             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1575         }
1576
1577         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1578             DecryptedGroup group = null;
1579             if (signedGroupChange != null
1580                     && groupInfoV2.getGroup() != null
1581                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1582                 group = groupHelper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(), signedGroupChange, groupMasterKey);
1583             }
1584             if (group == null) {
1585                 group = groupHelper.getDecryptedGroup(groupSecretParams);
1586             }
1587             if (group != null) {
1588                 storeProfileKeysFromMembers(group);
1589                 final String avatar = group.getAvatar();
1590                 if (avatar != null && !avatar.isEmpty()) {
1591                     downloadGroupAvatar(groupId, groupSecretParams, avatar);
1592                 }
1593             }
1594             groupInfoV2.setGroup(group);
1595             account.getGroupStore().updateGroup(groupInfoV2);
1596         }
1597
1598         return groupInfoV2;
1599     }
1600
1601     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1602         for (DecryptedMember member : group.getMembersList()) {
1603             final SignalServiceAddress address = resolveSignalServiceAddress(new SignalServiceAddress(UuidUtil.parseOrThrow(
1604                     member.getUuid().toByteArray()), null));
1605             try {
1606                 account.getProfileStore()
1607                         .storeProfileKey(address, new ProfileKey(member.getProfileKey().toByteArray()));
1608             } catch (InvalidInputException ignored) {
1609             }
1610         }
1611     }
1612
1613     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1614         for (CachedMessage cachedMessage : account.getMessageCache().getCachedMessages()) {
1615             retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1616         }
1617     }
1618
1619     private void retryFailedReceivedMessage(
1620             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1621     ) {
1622         SignalServiceEnvelope envelope = cachedMessage.loadEnvelope();
1623         if (envelope == null) {
1624             return;
1625         }
1626         SignalServiceContent content = null;
1627         if (!envelope.isReceipt()) {
1628             try {
1629                 content = decryptMessage(envelope);
1630             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1631                 return;
1632             } catch (Exception er) {
1633                 // All other errors are not recoverable, so delete the cached message
1634                 cachedMessage.delete();
1635                 return;
1636             }
1637             List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1638             for (HandleAction action : actions) {
1639                 try {
1640                     action.execute(this);
1641                 } catch (Throwable e) {
1642                     logger.warn("Message action failed.", e);
1643                 }
1644             }
1645         }
1646         account.save();
1647         handler.handleMessage(envelope, content, null);
1648         cachedMessage.delete();
1649     }
1650
1651     public void receiveMessages(
1652             long timeout,
1653             TimeUnit unit,
1654             boolean returnOnTimeout,
1655             boolean ignoreAttachments,
1656             ReceiveMessageHandler handler
1657     ) throws IOException {
1658         retryFailedReceivedMessages(handler, ignoreAttachments);
1659
1660         Set<HandleAction> queuedActions = null;
1661
1662         final SignalServiceMessagePipe messagePipe = getOrCreateMessagePipe();
1663
1664         boolean hasCaughtUpWithOldMessages = false;
1665
1666         while (true) {
1667             SignalServiceEnvelope envelope;
1668             SignalServiceContent content = null;
1669             Exception exception = null;
1670             final CachedMessage[] cachedMessage = {null};
1671             try {
1672                 Optional<SignalServiceEnvelope> result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1673                     // store message on disk, before acknowledging receipt to the server
1674                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1);
1675                 });
1676                 if (result.isPresent()) {
1677                     envelope = result.get();
1678                 } else {
1679                     // Received indicator that server queue is empty
1680                     hasCaughtUpWithOldMessages = true;
1681
1682                     if (queuedActions != null) {
1683                         for (HandleAction action : queuedActions) {
1684                             try {
1685                                 action.execute(this);
1686                             } catch (Throwable e) {
1687                                 logger.warn("Message action failed.", e);
1688                             }
1689                         }
1690                         account.save();
1691                         queuedActions.clear();
1692                         queuedActions = null;
1693                     }
1694
1695                     // Continue to wait another timeout for new messages
1696                     continue;
1697                 }
1698             } catch (TimeoutException e) {
1699                 if (returnOnTimeout) return;
1700                 continue;
1701             } catch (InvalidVersionException e) {
1702                 logger.warn("Error while receiving messages, ignoring: {}", e.getMessage());
1703                 continue;
1704             }
1705
1706             if (envelope.hasSource()) {
1707                 // Store uuid if we don't have it already
1708                 SignalServiceAddress source = envelope.getSourceAddress();
1709                 resolveSignalServiceAddress(source);
1710             }
1711             if (!envelope.isReceipt()) {
1712                 try {
1713                     content = decryptMessage(envelope);
1714                 } catch (Exception e) {
1715                     exception = e;
1716                 }
1717                 List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1718                 if (hasCaughtUpWithOldMessages) {
1719                     for (HandleAction action : actions) {
1720                         try {
1721                             action.execute(this);
1722                         } catch (Throwable e) {
1723                             logger.warn("Message action failed.", e);
1724                         }
1725                     }
1726                 } else {
1727                     if (queuedActions == null) {
1728                         queuedActions = new HashSet<>();
1729                     }
1730                     queuedActions.addAll(actions);
1731                 }
1732             }
1733             account.save();
1734             if (isMessageBlocked(envelope, content)) {
1735                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
1736             } else if (isNotAGroupMember(envelope, content)) {
1737                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
1738             } else {
1739                 handler.handleMessage(envelope, content, exception);
1740             }
1741             if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
1742                 if (cachedMessage[0] != null) {
1743                     cachedMessage[0].delete();
1744                 }
1745             }
1746         }
1747     }
1748
1749     private boolean isMessageBlocked(
1750             SignalServiceEnvelope envelope, SignalServiceContent content
1751     ) {
1752         SignalServiceAddress source;
1753         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1754             source = envelope.getSourceAddress();
1755         } else if (content != null) {
1756             source = content.getSender();
1757         } else {
1758             return false;
1759         }
1760         ContactInfo sourceContact = account.getContactStore().getContact(source);
1761         if (sourceContact != null && sourceContact.blocked) {
1762             return true;
1763         }
1764
1765         if (content != null && content.getDataMessage().isPresent()) {
1766             SignalServiceDataMessage message = content.getDataMessage().get();
1767             if (message.getGroupContext().isPresent()) {
1768                 GroupId groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1769                 GroupInfo group = getGroup(groupId);
1770                 if (group != null && group.isBlocked()) {
1771                     return true;
1772                 }
1773             }
1774         }
1775         return false;
1776     }
1777
1778     private boolean isNotAGroupMember(
1779             SignalServiceEnvelope envelope, SignalServiceContent content
1780     ) {
1781         SignalServiceAddress source;
1782         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1783             source = envelope.getSourceAddress();
1784         } else if (content != null) {
1785             source = content.getSender();
1786         } else {
1787             return false;
1788         }
1789
1790         if (content != null && content.getDataMessage().isPresent()) {
1791             SignalServiceDataMessage message = content.getDataMessage().get();
1792             if (message.getGroupContext().isPresent()) {
1793                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1794                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1795                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
1796                         return false;
1797                     }
1798                 }
1799                 GroupId groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1800                 GroupInfo group = getGroup(groupId);
1801                 if (group != null && !group.isMember(source)) {
1802                     return true;
1803                 }
1804             }
1805         }
1806         return false;
1807     }
1808
1809     private List<HandleAction> handleMessage(
1810             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
1811     ) {
1812         List<HandleAction> actions = new ArrayList<>();
1813         if (content != null) {
1814             final SignalServiceAddress sender;
1815             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1816                 sender = envelope.getSourceAddress();
1817             } else {
1818                 sender = content.getSender();
1819             }
1820             // Store uuid if we don't have it already
1821             resolveSignalServiceAddress(sender);
1822
1823             if (content.getDataMessage().isPresent()) {
1824                 SignalServiceDataMessage message = content.getDataMessage().get();
1825
1826                 if (content.isNeedsReceipt()) {
1827                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1828                 }
1829
1830                 actions.addAll(handleSignalServiceDataMessage(message,
1831                         false,
1832                         sender,
1833                         account.getSelfAddress(),
1834                         ignoreAttachments));
1835             }
1836             if (content.getSyncMessage().isPresent()) {
1837                 account.setMultiDevice(true);
1838                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1839                 if (syncMessage.getSent().isPresent()) {
1840                     SentTranscriptMessage message = syncMessage.getSent().get();
1841                     final SignalServiceAddress destination = message.getDestination().orNull();
1842                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
1843                             true,
1844                             sender,
1845                             destination,
1846                             ignoreAttachments));
1847                 }
1848                 if (syncMessage.getRequest().isPresent()) {
1849                     RequestMessage rm = syncMessage.getRequest().get();
1850                     if (rm.isContactsRequest()) {
1851                         actions.add(SendSyncContactsAction.create());
1852                     }
1853                     if (rm.isGroupsRequest()) {
1854                         actions.add(SendSyncGroupsAction.create());
1855                     }
1856                     if (rm.isBlockedListRequest()) {
1857                         actions.add(SendSyncBlockedListAction.create());
1858                     }
1859                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
1860                 }
1861                 if (syncMessage.getGroups().isPresent()) {
1862                     File tmpFile = null;
1863                     try {
1864                         tmpFile = IOUtils.createTempFile();
1865                         final SignalServiceAttachment groupsMessage = syncMessage.getGroups().get();
1866                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(groupsMessage.asPointer(),
1867                                 tmpFile)) {
1868                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1869                             DeviceGroup g;
1870                             while ((g = s.read()) != null) {
1871                                 GroupInfoV1 syncGroup = account.getGroupStore()
1872                                         .getOrCreateGroupV1(GroupId.v1(g.getId()));
1873                                 if (syncGroup != null) {
1874                                     if (g.getName().isPresent()) {
1875                                         syncGroup.name = g.getName().get();
1876                                     }
1877                                     syncGroup.addMembers(g.getMembers()
1878                                             .stream()
1879                                             .map(this::resolveSignalServiceAddress)
1880                                             .collect(Collectors.toSet()));
1881                                     if (!g.isActive()) {
1882                                         syncGroup.removeMember(account.getSelfAddress());
1883                                     } else {
1884                                         // Add ourself to the member set as it's marked as active
1885                                         syncGroup.addMembers(List.of(account.getSelfAddress()));
1886                                     }
1887                                     syncGroup.blocked = g.isBlocked();
1888                                     if (g.getColor().isPresent()) {
1889                                         syncGroup.color = g.getColor().get();
1890                                     }
1891
1892                                     if (g.getAvatar().isPresent()) {
1893                                         downloadGroupAvatar(g.getAvatar().get(), syncGroup.getGroupId());
1894                                     }
1895                                     syncGroup.inboxPosition = g.getInboxPosition().orNull();
1896                                     syncGroup.archived = g.isArchived();
1897                                     account.getGroupStore().updateGroup(syncGroup);
1898                                 }
1899                             }
1900                         }
1901                     } catch (Exception e) {
1902                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
1903                                 tmpFile,
1904                                 e.getMessage());
1905                     } finally {
1906                         if (tmpFile != null) {
1907                             try {
1908                                 Files.delete(tmpFile.toPath());
1909                             } catch (IOException e) {
1910                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
1911                                         tmpFile,
1912                                         e.getMessage());
1913                             }
1914                         }
1915                     }
1916                 }
1917                 if (syncMessage.getBlockedList().isPresent()) {
1918                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1919                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1920                         setContactBlocked(resolveSignalServiceAddress(address), true);
1921                     }
1922                     for (GroupId groupId : blockedListMessage.getGroupIds()
1923                             .stream()
1924                             .map(GroupId::unknownVersion)
1925                             .collect(Collectors.toSet())) {
1926                         try {
1927                             setGroupBlocked(groupId, true);
1928                         } catch (GroupNotFoundException e) {
1929                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
1930                                     groupId.toBase64());
1931                         }
1932                     }
1933                 }
1934                 if (syncMessage.getContacts().isPresent()) {
1935                     File tmpFile = null;
1936                     try {
1937                         tmpFile = IOUtils.createTempFile();
1938                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1939                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
1940                                 .asPointer(), tmpFile)) {
1941                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1942                             if (contactsMessage.isComplete()) {
1943                                 account.getContactStore().clear();
1944                             }
1945                             DeviceContact c;
1946                             while ((c = s.read()) != null) {
1947                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
1948                                     account.setProfileKey(c.getProfileKey().get());
1949                                 }
1950                                 final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
1951                                 ContactInfo contact = account.getContactStore().getContact(address);
1952                                 if (contact == null) {
1953                                     contact = new ContactInfo(address);
1954                                 }
1955                                 if (c.getName().isPresent()) {
1956                                     contact.name = c.getName().get();
1957                                 }
1958                                 if (c.getColor().isPresent()) {
1959                                     contact.color = c.getColor().get();
1960                                 }
1961                                 if (c.getProfileKey().isPresent()) {
1962                                     account.getProfileStore().storeProfileKey(address, c.getProfileKey().get());
1963                                 }
1964                                 if (c.getVerified().isPresent()) {
1965                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
1966                                     account.getSignalProtocolStore()
1967                                             .setIdentityTrustLevel(verifiedMessage.getDestination(),
1968                                                     verifiedMessage.getIdentityKey(),
1969                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1970                                 }
1971                                 if (c.getExpirationTimer().isPresent()) {
1972                                     contact.messageExpirationTime = c.getExpirationTimer().get();
1973                                 }
1974                                 contact.blocked = c.isBlocked();
1975                                 contact.inboxPosition = c.getInboxPosition().orNull();
1976                                 contact.archived = c.isArchived();
1977                                 account.getContactStore().updateContact(contact);
1978
1979                                 if (c.getAvatar().isPresent()) {
1980                                     downloadContactAvatar(c.getAvatar().get(), contact.getAddress());
1981                                 }
1982                             }
1983                         }
1984                     } catch (Exception e) {
1985                         logger.warn("Failed to handle received sync contacts “{}”, ignoring: {}",
1986                                 tmpFile,
1987                                 e.getMessage());
1988                     } finally {
1989                         if (tmpFile != null) {
1990                             try {
1991                                 Files.delete(tmpFile.toPath());
1992                             } catch (IOException e) {
1993                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
1994                                         tmpFile,
1995                                         e.getMessage());
1996                             }
1997                         }
1998                     }
1999                 }
2000                 if (syncMessage.getVerified().isPresent()) {
2001                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
2002                     account.getSignalProtocolStore()
2003                             .setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()),
2004                                     verifiedMessage.getIdentityKey(),
2005                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2006                 }
2007                 if (syncMessage.getStickerPackOperations().isPresent()) {
2008                     final List<StickerPackOperationMessage> stickerPackOperationMessages = syncMessage.getStickerPackOperations()
2009                             .get();
2010                     for (StickerPackOperationMessage m : stickerPackOperationMessages) {
2011                         if (!m.getPackId().isPresent()) {
2012                             continue;
2013                         }
2014                         Sticker sticker = account.getStickerStore().getSticker(m.getPackId().get());
2015                         if (sticker == null) {
2016                             if (!m.getPackKey().isPresent()) {
2017                                 continue;
2018                             }
2019                             sticker = new Sticker(m.getPackId().get(), m.getPackKey().get());
2020                         }
2021                         sticker.setInstalled(!m.getType().isPresent()
2022                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2023                         account.getStickerStore().updateSticker(sticker);
2024                     }
2025                 }
2026                 if (syncMessage.getFetchType().isPresent()) {
2027                     switch (syncMessage.getFetchType().get()) {
2028                         case LOCAL_PROFILE:
2029                             getRecipientProfile(getSelfAddress(), true);
2030                         case STORAGE_MANIFEST:
2031                             // TODO
2032                     }
2033                 }
2034                 if (syncMessage.getKeys().isPresent()) {
2035                     final KeysMessage keysMessage = syncMessage.getKeys().get();
2036                     if (keysMessage.getStorageService().isPresent()) {
2037                         final StorageKey storageKey = keysMessage.getStorageService().get();
2038                         account.setStorageKey(storageKey);
2039                     }
2040                 }
2041                 if (syncMessage.getConfiguration().isPresent()) {
2042                     // TODO
2043                 }
2044             }
2045         }
2046         return actions;
2047     }
2048
2049     private void downloadContactAvatar(SignalServiceAttachment avatar, SignalServiceAddress address) {
2050         try {
2051             avatarStore.storeContactAvatar(address, outputStream -> retrieveAttachment(avatar, outputStream));
2052         } catch (IOException e) {
2053             logger.warn("Failed to download avatar for contact {}, ignoring: {}", address, e.getMessage());
2054         }
2055     }
2056
2057     private void downloadGroupAvatar(SignalServiceAttachment avatar, GroupId groupId) {
2058         try {
2059             avatarStore.storeGroupAvatar(groupId, outputStream -> retrieveAttachment(avatar, outputStream));
2060         } catch (IOException e) {
2061             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2062         }
2063     }
2064
2065     private void downloadGroupAvatar(GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey) {
2066         try {
2067             avatarStore.storeGroupAvatar(groupId,
2068                     outputStream -> retrieveGroupV2Avatar(groupSecretParams, cdnKey, outputStream));
2069         } catch (IOException e) {
2070             logger.warn("Failed to download avatar for group {}, ignoring: {}", groupId.toBase64(), e.getMessage());
2071         }
2072     }
2073
2074     private void downloadProfileAvatar(
2075             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2076     ) {
2077         try {
2078             avatarStore.storeProfileAvatar(address,
2079                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
2080         } catch (Throwable e) {
2081             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
2082         }
2083     }
2084
2085     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2086         return attachmentStore.getAttachmentFile(attachmentId);
2087     }
2088
2089     private void downloadAttachment(final SignalServiceAttachment attachment) {
2090         if (!attachment.isPointer()) {
2091             logger.warn("Invalid state, can't store an attachment stream.");
2092         }
2093
2094         SignalServiceAttachmentPointer pointer = attachment.asPointer();
2095         if (pointer.getPreview().isPresent()) {
2096             final byte[] preview = pointer.getPreview().get();
2097             try {
2098                 attachmentStore.storeAttachmentPreview(pointer.getRemoteId(),
2099                         outputStream -> outputStream.write(preview, 0, preview.length));
2100             } catch (IOException e) {
2101                 logger.warn("Failed to download attachment preview, ignoring: {}", e.getMessage());
2102             }
2103         }
2104
2105         try {
2106             attachmentStore.storeAttachment(pointer.getRemoteId(),
2107                     outputStream -> retrieveAttachmentPointer(pointer, outputStream));
2108         } catch (IOException e) {
2109             logger.warn("Failed to download attachment ({}), ignoring: {}", pointer.getRemoteId(), e.getMessage());
2110         }
2111     }
2112
2113     private void retrieveGroupV2Avatar(
2114             GroupSecretParams groupSecretParams, String cdnKey, OutputStream outputStream
2115     ) throws IOException {
2116         GroupsV2Operations.GroupOperations groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2117
2118         File tmpFile = IOUtils.createTempFile();
2119         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2120                 tmpFile,
2121                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2122             byte[] encryptedData = IOUtils.readFully(input);
2123
2124             byte[] decryptedData = groupOperations.decryptAvatar(encryptedData);
2125             outputStream.write(decryptedData);
2126         } finally {
2127             try {
2128                 Files.delete(tmpFile.toPath());
2129             } catch (IOException e) {
2130                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2131                         tmpFile,
2132                         e.getMessage());
2133             }
2134         }
2135     }
2136
2137     private void retrieveProfileAvatar(
2138             String avatarPath, ProfileKey profileKey, OutputStream outputStream
2139     ) throws IOException {
2140         File tmpFile = IOUtils.createTempFile();
2141         try (InputStream input = messageReceiver.retrieveProfileAvatar(avatarPath,
2142                 tmpFile,
2143                 profileKey,
2144                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2145             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2146             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2147         } finally {
2148             try {
2149                 Files.delete(tmpFile.toPath());
2150             } catch (IOException e) {
2151                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2152                         tmpFile,
2153                         e.getMessage());
2154             }
2155         }
2156     }
2157
2158     private void retrieveAttachment(
2159             final SignalServiceAttachment attachment, final OutputStream outputStream
2160     ) throws IOException {
2161         if (attachment.isPointer()) {
2162             SignalServiceAttachmentPointer pointer = attachment.asPointer();
2163             retrieveAttachmentPointer(pointer, outputStream);
2164         } else {
2165             SignalServiceAttachmentStream stream = attachment.asStream();
2166             IOUtils.copyStream(stream.getInputStream(), outputStream);
2167         }
2168     }
2169
2170     private void retrieveAttachmentPointer(
2171             SignalServiceAttachmentPointer pointer, OutputStream outputStream
2172     ) throws IOException {
2173         File tmpFile = IOUtils.createTempFile();
2174         try (InputStream input = retrieveAttachmentAsStream(pointer, tmpFile)) {
2175             IOUtils.copyStream(input, outputStream);
2176         } catch (MissingConfigurationException | InvalidMessageException e) {
2177             throw new IOException(e);
2178         } finally {
2179             try {
2180                 Files.delete(tmpFile.toPath());
2181             } catch (IOException e) {
2182                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2183                         tmpFile,
2184                         e.getMessage());
2185             }
2186         }
2187     }
2188
2189     private InputStream retrieveAttachmentAsStream(
2190             SignalServiceAttachmentPointer pointer, File tmpFile
2191     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2192         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2193     }
2194
2195     void sendGroups() throws IOException, UntrustedIdentityException {
2196         File groupsFile = IOUtils.createTempFile();
2197
2198         try {
2199             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2200                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
2201                 for (GroupInfo record : getGroups()) {
2202                     if (record instanceof GroupInfoV1) {
2203                         GroupInfoV1 groupInfo = (GroupInfoV1) record;
2204                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2205                                 Optional.fromNullable(groupInfo.name),
2206                                 new ArrayList<>(groupInfo.getMembers()),
2207                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2208                                 groupInfo.isMember(account.getSelfAddress()),
2209                                 Optional.of(groupInfo.messageExpirationTime),
2210                                 Optional.fromNullable(groupInfo.color),
2211                                 groupInfo.blocked,
2212                                 Optional.fromNullable(groupInfo.inboxPosition),
2213                                 groupInfo.archived));
2214                     }
2215                 }
2216             }
2217
2218             if (groupsFile.exists() && groupsFile.length() > 0) {
2219                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
2220                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2221                             .withStream(groupsFileStream)
2222                             .withContentType("application/octet-stream")
2223                             .withLength(groupsFile.length())
2224                             .build();
2225
2226                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2227                 }
2228             }
2229         } finally {
2230             try {
2231                 Files.delete(groupsFile.toPath());
2232             } catch (IOException e) {
2233                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2234             }
2235         }
2236     }
2237
2238     public void sendContacts() throws IOException, UntrustedIdentityException {
2239         File contactsFile = IOUtils.createTempFile();
2240
2241         try {
2242             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2243                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
2244                 for (ContactInfo record : account.getContactStore().getContacts()) {
2245                     VerifiedMessage verifiedMessage = null;
2246                     IdentityInfo currentIdentity = account.getSignalProtocolStore().getIdentity(record.getAddress());
2247                     if (currentIdentity != null) {
2248                         verifiedMessage = new VerifiedMessage(record.getAddress(),
2249                                 currentIdentity.getIdentityKey(),
2250                                 currentIdentity.getTrustLevel().toVerifiedState(),
2251                                 currentIdentity.getDateAdded().getTime());
2252                     }
2253
2254                     ProfileKey profileKey = account.getProfileStore().getProfileKey(record.getAddress());
2255                     out.write(new DeviceContact(record.getAddress(),
2256                             Optional.fromNullable(record.name),
2257                             createContactAvatarAttachment(record.getAddress()),
2258                             Optional.fromNullable(record.color),
2259                             Optional.fromNullable(verifiedMessage),
2260                             Optional.fromNullable(profileKey),
2261                             record.blocked,
2262                             Optional.of(record.messageExpirationTime),
2263                             Optional.fromNullable(record.inboxPosition),
2264                             record.archived));
2265                 }
2266
2267                 if (account.getProfileKey() != null) {
2268                     // Send our own profile key as well
2269                     out.write(new DeviceContact(account.getSelfAddress(),
2270                             Optional.absent(),
2271                             Optional.absent(),
2272                             Optional.absent(),
2273                             Optional.absent(),
2274                             Optional.of(account.getProfileKey()),
2275                             false,
2276                             Optional.absent(),
2277                             Optional.absent(),
2278                             false));
2279                 }
2280             }
2281
2282             if (contactsFile.exists() && contactsFile.length() > 0) {
2283                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
2284                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2285                             .withStream(contactsFileStream)
2286                             .withContentType("application/octet-stream")
2287                             .withLength(contactsFile.length())
2288                             .build();
2289
2290                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2291                 }
2292             }
2293         } finally {
2294             try {
2295                 Files.delete(contactsFile.toPath());
2296             } catch (IOException e) {
2297                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2298             }
2299         }
2300     }
2301
2302     void sendBlockedList() throws IOException, UntrustedIdentityException {
2303         List<SignalServiceAddress> addresses = new ArrayList<>();
2304         for (ContactInfo record : account.getContactStore().getContacts()) {
2305             if (record.blocked) {
2306                 addresses.add(record.getAddress());
2307             }
2308         }
2309         List<byte[]> groupIds = new ArrayList<>();
2310         for (GroupInfo record : getGroups()) {
2311             if (record.isBlocked()) {
2312                 groupIds.add(record.getGroupId().serialize());
2313             }
2314         }
2315         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2316     }
2317
2318     private void sendVerifiedMessage(
2319             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2320     ) throws IOException, UntrustedIdentityException {
2321         VerifiedMessage verifiedMessage = new VerifiedMessage(destination,
2322                 identityKey,
2323                 trustLevel.toVerifiedState(),
2324                 System.currentTimeMillis());
2325         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2326     }
2327
2328     public List<ContactInfo> getContacts() {
2329         return account.getContactStore().getContacts();
2330     }
2331
2332     public String getContactOrProfileName(String number) {
2333         final SignalServiceAddress address = Utils.getSignalServiceAddressFromIdentifier(number);
2334
2335         final ContactInfo contact = account.getContactStore().getContact(address);
2336         if (contact != null && !Util.isEmpty(contact.name)) {
2337             return contact.name;
2338         }
2339
2340         final SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
2341         if (profileEntry != null && profileEntry.getProfile() != null) {
2342             return profileEntry.getProfile().getName();
2343         }
2344
2345         return null;
2346     }
2347
2348     public GroupInfo getGroup(GroupId groupId) {
2349         final GroupInfo group = account.getGroupStore().getGroup(groupId);
2350         if (group instanceof GroupInfoV2 && ((GroupInfoV2) group).getGroup() == null) {
2351             final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2352             ((GroupInfoV2) group).setGroup(groupHelper.getDecryptedGroup(groupSecretParams));
2353             account.getGroupStore().updateGroup(group);
2354         }
2355         return group;
2356     }
2357
2358     public List<IdentityInfo> getIdentities() {
2359         return account.getSignalProtocolStore().getIdentities();
2360     }
2361
2362     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2363         return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));
2364     }
2365
2366     /**
2367      * Trust this the identity with this fingerprint
2368      *
2369      * @param name        username of the identity
2370      * @param fingerprint Fingerprint
2371      */
2372     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2373         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2374         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2375         if (ids == null) {
2376             return false;
2377         }
2378         for (IdentityInfo id : ids) {
2379             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
2380                 continue;
2381             }
2382
2383             account.getSignalProtocolStore()
2384                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2385             try {
2386                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2387             } catch (IOException | UntrustedIdentityException e) {
2388                 logger.warn("Failed to send verification sync message: {}", e.getMessage());
2389             }
2390             account.save();
2391             return true;
2392         }
2393         return false;
2394     }
2395
2396     /**
2397      * Trust this the identity with this safety number
2398      *
2399      * @param name         username of the identity
2400      * @param safetyNumber Safety number
2401      */
2402     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2403         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2404         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2405         if (ids == null) {
2406             return false;
2407         }
2408         for (IdentityInfo id : ids) {
2409             if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {
2410                 continue;
2411             }
2412
2413             account.getSignalProtocolStore()
2414                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2415             try {
2416                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2417             } catch (IOException | UntrustedIdentityException e) {
2418                 logger.warn("Failed to send verification sync message: {}", e.getMessage());
2419             }
2420             account.save();
2421             return true;
2422         }
2423         return false;
2424     }
2425
2426     /**
2427      * Trust all keys of this identity without verification
2428      *
2429      * @param name username of the identity
2430      */
2431     public boolean trustIdentityAllKeys(String name) {
2432         SignalServiceAddress address = resolveSignalServiceAddress(name);
2433         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2434         if (ids == null) {
2435             return false;
2436         }
2437         for (IdentityInfo id : ids) {
2438             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2439                 account.getSignalProtocolStore()
2440                         .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2441                 try {
2442                     sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2443                 } catch (IOException | UntrustedIdentityException e) {
2444                     logger.warn("Failed to send verification sync message: {}", e.getMessage());
2445                 }
2446             }
2447         }
2448         account.save();
2449         return true;
2450     }
2451
2452     public String computeSafetyNumber(
2453             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2454     ) {
2455         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2456                 account.getSelfAddress(),
2457                 getIdentityKeyPair().getPublicKey(),
2458                 theirAddress,
2459                 theirIdentityKey);
2460     }
2461
2462     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2463         String canonicalizedNumber = UuidUtil.isUuid(identifier)
2464                 ? identifier
2465                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2466         return resolveSignalServiceAddress(canonicalizedNumber);
2467     }
2468
2469     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2470         SignalServiceAddress address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2471
2472         return resolveSignalServiceAddress(address);
2473     }
2474
2475     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2476         if (address.matches(account.getSelfAddress())) {
2477             return account.getSelfAddress();
2478         }
2479
2480         return account.getRecipientStore().resolveServiceAddress(address);
2481     }
2482
2483     @Override
2484     public void close() throws IOException {
2485         close(true);
2486     }
2487
2488     void close(boolean closeAccount) throws IOException {
2489         if (messagePipe != null) {
2490             messagePipe.shutdown();
2491             messagePipe = null;
2492         }
2493
2494         if (unidentifiedMessagePipe != null) {
2495             unidentifiedMessagePipe.shutdown();
2496             unidentifiedMessagePipe = null;
2497         }
2498
2499         if (closeAccount && account != null) {
2500             account.close();
2501         }
2502         account = null;
2503     }
2504
2505     public interface ReceiveMessageHandler {
2506
2507         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2508     }
2509 }