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 com.fasterxml.jackson.databind.ObjectMapper;
  20
  21 import org.asamk.signal.manager.groups.GroupId;
  22 import org.asamk.signal.manager.groups.GroupIdV1;
  23 import org.asamk.signal.manager.groups.GroupIdV2;
  24 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  25 import org.asamk.signal.manager.groups.GroupNotFoundException;
  26 import org.asamk.signal.manager.groups.GroupUtils;
  27 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  28 import org.asamk.signal.manager.helper.GroupHelper;
  29 import org.asamk.signal.manager.helper.PinHelper;
  30 import org.asamk.signal.manager.helper.ProfileHelper;
  31 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  32 import org.asamk.signal.manager.storage.SignalAccount;
  33 import org.asamk.signal.manager.storage.contacts.ContactInfo;
  34 import org.asamk.signal.manager.storage.groups.GroupInfo;
  35 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  36 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  37 import org.asamk.signal.manager.storage.messageCache.CachedMessage;
  38 import org.asamk.signal.manager.storage.profiles.SignalProfile;
  39 import org.asamk.signal.manager.storage.profiles.SignalProfileEntry;
  40 import org.asamk.signal.manager.storage.protocol.IdentityInfo;
  41 import org.asamk.signal.manager.storage.stickers.Sticker;
  42 import org.asamk.signal.manager.util.AttachmentUtils;
  43 import org.asamk.signal.manager.util.IOUtils;
  44 import org.asamk.signal.manager.util.KeyUtils;
  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.InvalidCiphertextException;
  88 import org.whispersystems.signalservice.api.crypto.ProfileCipher;
  89 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  90 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
  91 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  92 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  93 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  94 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
  95 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  96 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  97 import org.whispersystems.signalservice.api.kbs.MasterKey;
  98 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  99 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
 100 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
 101 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 104 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 105 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 106 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 107 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 108 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 109 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload;
 110 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload.StickerInfo;
 111 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 112 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 113 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 114 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 115 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 116 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 117 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 118 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 119 import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
 120 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 121 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 122 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 123 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 124 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 125 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 126 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 127 import org.whispersystems.signalservice.api.push.ContactTokenDetails;
 128 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 129 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 130 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 131 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 132 import org.whispersystems.signalservice.api.util.SleepTimer;
 133 import org.whispersystems.signalservice.api.util.StreamDetails;
 134 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 135 import org.whispersystems.signalservice.api.util.UuidUtil;
 136 import org.whispersystems.signalservice.internal.configuration.SignalServiceConfiguration;
 137 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 138 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 139 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 140 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 141 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 142 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 143 import org.whispersystems.signalservice.internal.util.Hex;
 144 import org.whispersystems.util.Base64;
 145
 146 import java.io.Closeable;
 147 import java.io.File;
 148 import java.io.FileInputStream;
 149 import java.io.FileNotFoundException;
 150 import java.io.FileOutputStream;
 151 import java.io.IOException;
 152 import java.io.InputStream;
 153 import java.io.OutputStream;
 154 import java.net.URI;
 155 import java.net.URISyntaxException;
 156 import java.net.URLEncoder;
 157 import java.nio.charset.StandardCharsets;
 158 import java.nio.file.Files;
 159 import java.nio.file.Paths;
 160 import java.nio.file.StandardCopyOption;
 161 import java.security.SignatureException;
 162 import java.util.ArrayList;
 163 import java.util.Arrays;
 164 import java.util.Collection;
 165 import java.util.Date;
 166 import java.util.HashMap;
 167 import java.util.HashSet;
 168 import java.util.List;
 169 import java.util.Map;
 170 import java.util.Set;
 171 import java.util.UUID;
 172 import java.util.concurrent.ExecutorService;
 173 import java.util.concurrent.TimeUnit;
 174 import java.util.concurrent.TimeoutException;
 175 import java.util.stream.Collectors;
 176 import java.util.zip.ZipEntry;
 177 import java.util.zip.ZipFile;
 178
 179 import static org.asamk.signal.manager.ServiceConfig.CDS_MRENCLAVE;
 180 import static org.asamk.signal.manager.ServiceConfig.capabilities;
 181 import static org.asamk.signal.manager.ServiceConfig.getIasKeyStore;
 182
 183 public class Manager implements Closeable {
 184
 185     private final static Logger logger = LoggerFactory.getLogger(Manager.class);
 186
 187     private final CertificateValidator certificateValidator = new CertificateValidator(ServiceConfig.getUnidentifiedSenderTrustRoot());
 188
 189     private final SignalServiceConfiguration serviceConfiguration;
 190     private final String userAgent;
 191
 192     private SignalAccount account;
 193     private final PathConfig pathConfig;
 194     private final SignalServiceAccountManager accountManager;
 195     private final GroupsV2Api groupsV2Api;
 196     private final GroupsV2Operations groupsV2Operations;
 197     private final SignalServiceMessageReceiver messageReceiver;
 198     private final ClientZkProfileOperations clientZkProfileOperations;
 199
 200     private SignalServiceMessagePipe messagePipe = null;
 201     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 202
 203     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 204     private final ProfileHelper profileHelper;
 205     private final GroupHelper groupHelper;
 206     private final PinHelper pinHelper;
 207
 208     Manager(
 209             SignalAccount account,
 210             PathConfig pathConfig,
 211             SignalServiceConfiguration serviceConfiguration,
 212             String userAgent
 213     ) {
 214         this.account = account;
 215         this.pathConfig = pathConfig;
 216         this.serviceConfiguration = serviceConfiguration;
 217         this.userAgent = userAgent;
 218         this.groupsV2Operations = capabilities.isGv2() ? new GroupsV2Operations(ClientZkOperations.create(
 219                 serviceConfiguration)) : null;
 220         final SleepTimer timer = new UptimeSleepTimer();
 221         this.accountManager = new SignalServiceAccountManager(serviceConfiguration,
 222                 new DynamicCredentialsProvider(account.getUuid(),
 223                         account.getUsername(),
 224                         account.getPassword(),
 225                         account.getSignalingKey(),
 226                         account.getDeviceId()),
 227                 userAgent,
 228                 groupsV2Operations,
 229                 timer);
 230         this.groupsV2Api = accountManager.getGroupsV2Api();
 231         final KeyBackupService keyBackupService = ServiceConfig.createKeyBackupService(accountManager);
 232         this.pinHelper = new PinHelper(keyBackupService);
 233         this.clientZkProfileOperations = capabilities.isGv2() ? ClientZkOperations.create(serviceConfiguration)
 234                 .getProfileOperations() : null;
 235         this.messageReceiver = new SignalServiceMessageReceiver(serviceConfiguration,
 236                 account.getUuid(),
 237                 account.getUsername(),
 238                 account.getPassword(),
 239                 account.getDeviceId(),
 240                 account.getSignalingKey(),
 241                 userAgent,
 242                 null,
 243                 timer,
 244                 clientZkProfileOperations);
 245
 246         this.account.setResolver(this::resolveSignalServiceAddress);
 247
 248         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 249                 account.getProfileStore()::getProfileKey,
 250                 this::getRecipientProfile,
 251                 this::getSenderCertificate);
 252         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 253                 unidentifiedAccessHelper::getAccessFor,
 254                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 255                 () -> messageReceiver);
 256         this.groupHelper = new GroupHelper(this::getRecipientProfileKeyCredential,
 257                 this::getRecipientProfile,
 258                 account::getSelfAddress,
 259                 groupsV2Operations,
 260                 groupsV2Api,
 261                 this::getGroupAuthForToday);
 262     }
 263
 264     public String getUsername() {
 265         return account.getUsername();
 266     }
 267
 268     public SignalServiceAddress getSelfAddress() {
 269         return account.getSelfAddress();
 270     }
 271
 272     private IdentityKeyPair getIdentityKeyPair() {
 273         return account.getSignalProtocolStore().getIdentityKeyPair();
 274     }
 275
 276     public int getDeviceId() {
 277         return account.getDeviceId();
 278     }
 279
 280     public static Manager init(
 281             String username, File settingsPath, SignalServiceConfiguration serviceConfiguration, String userAgent
 282     ) throws IOException, NotRegisteredException {
 283         PathConfig pathConfig = PathConfig.createDefault(settingsPath);
 284
 285         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 286             throw new NotRegisteredException();
 287         }
 288
 289         SignalAccount account = SignalAccount.load(pathConfig.getDataPath(), username);
 290
 291         if (!account.isRegistered()) {
 292             throw new NotRegisteredException();
 293         }
 294
 295         return new Manager(account, pathConfig, serviceConfiguration, userAgent);
 296     }
 297
 298     public void checkAccountState() throws IOException {
 299         if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 300             refreshPreKeys();
 301             account.save();
 302         }
 303         if (account.getUuid() == null) {
 304             account.setUuid(accountManager.getOwnUuid());
 305             account.save();
 306         }
 307         updateAccountAttributes();
 308     }
 309
 310     /**
 311      * This is used for checking a set of phone numbers for registration on Signal
 312      *
 313      * @param numbers The set of phone number in question
 314      * @return A map of numbers to booleans. True if registered, false otherwise. Should never be null
 315      * @throws IOException if its unable to get the contacts to check if they're registered
 316      */
 317     public Map<String, Boolean> areUsersRegistered(Set<String> numbers) throws IOException {
 318         // Note "contactDetails" has no optionals. It only gives us info on users who are registered
 319         List<ContactTokenDetails> contactDetails = this.accountManager.getContacts(numbers);
 320
 321         Set<String> registeredUsers = contactDetails.stream()
 322                 .map(ContactTokenDetails::getNumber)
 323                 .collect(Collectors.toSet());
 324
 325         return numbers.stream().collect(Collectors.toMap(x -> x, registeredUsers::contains));
 326     }
 327
 328     public void updateAccountAttributes() throws IOException {
 329         accountManager.setAccountAttributes(account.getSignalingKey(),
 330                 account.getSignalProtocolStore().getLocalRegistrationId(),
 331                 true,
 332                 // set legacy pin only if no KBS master key is set
 333                 account.getPinMasterKey() == null ? account.getRegistrationLockPin() : null,
 334                 account.getPinMasterKey() == null ? null : account.getPinMasterKey().deriveRegistrationLock(),
 335                 account.getSelfUnidentifiedAccessKey(),
 336                 account.isUnrestrictedUnidentifiedAccess(),
 337                 capabilities,
 338                 account.isDiscoverableByPhoneNumber());
 339     }
 340
 341     public void setProfile(String name, File avatar) throws IOException {
 342         try (final StreamDetails streamDetails = avatar == null ? null : Utils.createStreamDetailsFromFile(avatar)) {
 343             accountManager.setVersionedProfile(account.getUuid(), account.getProfileKey(), name, streamDetails);
 344         }
 345     }
 346
 347     public void unregister() throws IOException {
 348         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 349         // If this is the master device, other users can't send messages to this number anymore.
 350         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 351         accountManager.setGcmId(Optional.absent());
 352
 353         account.setRegistered(false);
 354         account.save();
 355     }
 356
 357     public List<DeviceInfo> getLinkedDevices() throws IOException {
 358         List<DeviceInfo> devices = accountManager.getDevices();
 359         account.setMultiDevice(devices.size() > 1);
 360         account.save();
 361         return devices;
 362     }
 363
 364     public void removeLinkedDevices(int deviceId) throws IOException {
 365         accountManager.removeDevice(deviceId);
 366         List<DeviceInfo> devices = accountManager.getDevices();
 367         account.setMultiDevice(devices.size() > 1);
 368         account.save();
 369     }
 370
 371     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 372         DeviceLinkInfo info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 373
 374         addDevice(info.deviceIdentifier, info.deviceKey);
 375     }
 376
 377     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 378         IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 379         String verificationCode = accountManager.getNewDeviceVerificationCode();
 380
 381         accountManager.addDevice(deviceIdentifier,
 382                 deviceKey,
 383                 identityKeyPair,
 384                 Optional.of(account.getProfileKey().serialize()),
 385                 verificationCode);
 386         account.setMultiDevice(true);
 387         account.save();
 388     }
 389
 390     public void setRegistrationLockPin(Optional<String> pin) throws IOException, UnauthenticatedResponseException {
 391         if (pin.isPresent()) {
 392             final MasterKey masterKey = account.getPinMasterKey() != null
 393                     ? account.getPinMasterKey()
 394                     : KeyUtils.createMasterKey();
 395
 396             pinHelper.setRegistrationLockPin(pin.get(), masterKey);
 397
 398             account.setRegistrationLockPin(pin.get());
 399             account.setPinMasterKey(masterKey);
 400         } else {
 401             // Remove legacy registration lock
 402             accountManager.removeRegistrationLockV1();
 403
 404             // Remove KBS Pin
 405             pinHelper.removeRegistrationLockPin();
 406
 407             account.setRegistrationLockPin(null);
 408             account.setPinMasterKey(null);
 409         }
 410         account.save();
 411     }
 412
 413     void refreshPreKeys() throws IOException {
 414         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 415         final IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 416         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 417
 418         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 419     }
 420
 421     private List<PreKeyRecord> generatePreKeys() {
 422         final int offset = account.getPreKeyIdOffset();
 423
 424         List<PreKeyRecord> records = KeyUtils.generatePreKeyRecords(offset, ServiceConfig.PREKEY_BATCH_SIZE);
 425         account.addPreKeys(records);
 426         account.save();
 427
 428         return records;
 429     }
 430
 431     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 432         final int signedPreKeyId = account.getNextSignedPreKeyId();
 433
 434         SignedPreKeyRecord record = KeyUtils.generateSignedPreKeyRecord(identityKeyPair, signedPreKeyId);
 435         account.addSignedPreKey(record);
 436         account.save();
 437
 438         return record;
 439     }
 440
 441     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 442         if (messagePipe == null) {
 443             messagePipe = messageReceiver.createMessagePipe();
 444         }
 445         return messagePipe;
 446     }
 447
 448     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 449         if (unidentifiedMessagePipe == null) {
 450             unidentifiedMessagePipe = messageReceiver.createUnidentifiedMessagePipe();
 451         }
 452         return unidentifiedMessagePipe;
 453     }
 454
 455     private SignalServiceMessageSender createMessageSender() {
 456         final ExecutorService executor = null;
 457         return new SignalServiceMessageSender(serviceConfiguration,
 458                 account.getUuid(),
 459                 account.getUsername(),
 460                 account.getPassword(),
 461                 account.getDeviceId(),
 462                 account.getSignalProtocolStore(),
 463                 userAgent,
 464                 account.isMultiDevice(),
 465                 Optional.fromNullable(messagePipe),
 466                 Optional.fromNullable(unidentifiedMessagePipe),
 467                 Optional.absent(),
 468                 clientZkProfileOperations,
 469                 executor,
 470                 ServiceConfig.MAX_ENVELOPE_SIZE);
 471     }
 472
 473     private SignalProfile getRecipientProfile(
 474             SignalServiceAddress address
 475     ) {
 476         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
 477         if (profileEntry == null) {
 478             return null;
 479         }
 480         long now = new Date().getTime();
 481         // Profiles are cache for 24h before retrieving them again
 482         if (!profileEntry.isRequestPending() && (
 483                 profileEntry.getProfile() == null || now - profileEntry.getLastUpdateTimestamp() > 24 * 60 * 60 * 1000
 484         )) {
 485             ProfileKey profileKey = profileEntry.getProfileKey();
 486             profileEntry.setRequestPending(true);
 487             SignalProfile profile;
 488             try {
 489                 profile = retrieveRecipientProfile(address, profileKey);
 490             } catch (IOException e) {
 491                 logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 492                 profileEntry.setRequestPending(false);
 493                 return null;
 494             }
 495             profileEntry.setRequestPending(false);
 496             account.getProfileStore()
 497                     .updateProfile(address, profileKey, now, profile, profileEntry.getProfileKeyCredential());
 498             return profile;
 499         }
 500         return profileEntry.getProfile();
 501     }
 502
 503     private ProfileKeyCredential getRecipientProfileKeyCredential(SignalServiceAddress address) {
 504         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
 505         if (profileEntry == null) {
 506             return null;
 507         }
 508         if (profileEntry.getProfileKeyCredential() == null) {
 509             ProfileAndCredential profileAndCredential;
 510             try {
 511                 profileAndCredential = profileHelper.retrieveProfileSync(address,
 512                         SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 513             } catch (IOException e) {
 514                 logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 515                 return null;
 516             }
 517
 518             long now = new Date().getTime();
 519             final ProfileKeyCredential profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 520             final SignalProfile profile = decryptProfile(address,
 521                     profileEntry.getProfileKey(),
 522                     profileAndCredential.getProfile());
 523             account.getProfileStore()
 524                     .updateProfile(address, profileEntry.getProfileKey(), now, profile, profileKeyCredential);
 525             return profileKeyCredential;
 526         }
 527         return profileEntry.getProfileKeyCredential();
 528     }
 529
 530     private SignalProfile retrieveRecipientProfile(
 531             SignalServiceAddress address, ProfileKey profileKey
 532     ) throws IOException {
 533         final SignalServiceProfile encryptedProfile = profileHelper.retrieveProfileSync(address,
 534                 SignalServiceProfile.RequestType.PROFILE).getProfile();
 535
 536         return decryptProfile(address, profileKey, encryptedProfile);
 537     }
 538
 539     private SignalProfile decryptProfile(
 540             final SignalServiceAddress address, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 541     ) {
 542         File avatarFile = null;
 543         try {
 544             avatarFile = encryptedProfile.getAvatar() == null
 545                     ? null
 546                     : retrieveProfileAvatar(address, encryptedProfile.getAvatar(), profileKey);
 547         } catch (Throwable e) {
 548             logger.warn("Failed to retrieve profile avatar, ignoring: {}", e.getMessage());
 549         }
 550
 551         ProfileCipher profileCipher = new ProfileCipher(profileKey);
 552         try {
 553             String name;
 554             try {
 555                 name = encryptedProfile.getName() == null
 556                         ? null
 557                         : new String(profileCipher.decryptName(Base64.decode(encryptedProfile.getName())));
 558             } catch (IOException e) {
 559                 name = null;
 560             }
 561             String unidentifiedAccess;
 562             try {
 563                 unidentifiedAccess = encryptedProfile.getUnidentifiedAccess() == null
 564                         || !profileCipher.verifyUnidentifiedAccess(Base64.decode(encryptedProfile.getUnidentifiedAccess()))
 565                         ? null
 566                         : encryptedProfile.getUnidentifiedAccess();
 567             } catch (IOException e) {
 568                 unidentifiedAccess = null;
 569             }
 570             return new SignalProfile(encryptedProfile.getIdentityKey(),
 571                     name,
 572                     avatarFile,
 573                     unidentifiedAccess,
 574                     encryptedProfile.isUnrestrictedUnidentifiedAccess(),
 575                     encryptedProfile.getCapabilities());
 576         } catch (InvalidCiphertextException e) {
 577             return null;
 578         }
 579     }
 580
 581     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 582         File file = getGroupAvatarFile(groupId);
 583         if (!file.exists()) {
 584             return Optional.absent();
 585         }
 586
 587         return Optional.of(AttachmentUtils.createAttachment(file));
 588     }
 589
 590     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(String number) throws IOException {
 591         File file = getContactAvatarFile(number);
 592         if (!file.exists()) {
 593             return Optional.absent();
 594         }
 595
 596         return Optional.of(AttachmentUtils.createAttachment(file));
 597     }
 598
 599     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 600         GroupInfo g = getGroup(groupId);
 601         if (g == null) {
 602             throw new GroupNotFoundException(groupId);
 603         }
 604         if (!g.isMember(account.getSelfAddress())) {
 605             throw new NotAGroupMemberException(groupId, g.getTitle());
 606         }
 607         return g;
 608     }
 609
 610     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 611         GroupInfo g = getGroup(groupId);
 612         if (g == null) {
 613             throw new GroupNotFoundException(groupId);
 614         }
 615         if (!g.isMember(account.getSelfAddress()) && !g.isPendingMember(account.getSelfAddress())) {
 616             throw new NotAGroupMemberException(groupId, g.getTitle());
 617         }
 618         return g;
 619     }
 620
 621     public List<GroupInfo> getGroups() {
 622         return account.getGroupStore().getGroups();
 623     }
 624
 625     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 626             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 627     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 628         final GroupInfo g = getGroupForSending(groupId);
 629
 630         GroupUtils.setGroupContext(messageBuilder, g);
 631         messageBuilder.withExpiration(g.getMessageExpirationTime());
 632
 633         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 634     }
 635
 636     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 637             String messageText, List<String> attachments, GroupId groupId
 638     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 639         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 640                 .withBody(messageText);
 641         if (attachments != null) {
 642             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 643         }
 644
 645         return sendGroupMessage(messageBuilder, groupId);
 646     }
 647
 648     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 649             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 650     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 651         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
 652                 remove,
 653                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
 654                 targetSentTimestamp);
 655         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 656                 .withReaction(reaction);
 657
 658         return sendGroupMessage(messageBuilder, groupId);
 659     }
 660
 661     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(GroupId groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 662
 663         SignalServiceDataMessage.Builder messageBuilder;
 664
 665         final GroupInfo g = getGroupForUpdating(groupId);
 666         if (g instanceof GroupInfoV1) {
 667             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
 668             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 669                     .withId(groupId.serialize())
 670                     .build();
 671             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 672             groupInfoV1.removeMember(account.getSelfAddress());
 673             account.getGroupStore().updateGroup(groupInfoV1);
 674         } else {
 675             final GroupInfoV2 groupInfoV2 = (GroupInfoV2) g;
 676             final Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.leaveGroup(groupInfoV2);
 677             groupInfoV2.setGroup(groupGroupChangePair.first());
 678             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 679             account.getGroupStore().updateGroup(groupInfoV2);
 680         }
 681
 682         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 683     }
 684
 685     private Pair<GroupId, List<SendMessageResult>> sendUpdateGroupMessage(
 686             GroupId groupId, String name, Collection<SignalServiceAddress> members, String avatarFile
 687     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 688         GroupInfo g;
 689         SignalServiceDataMessage.Builder messageBuilder;
 690         if (groupId == null) {
 691             // Create new group
 692             GroupInfoV2 gv2 = groupHelper.createGroupV2(name, members, avatarFile);
 693             if (gv2 == null) {
 694                 GroupInfoV1 gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 695                 gv1.addMembers(List.of(account.getSelfAddress()));
 696                 updateGroupV1(gv1, name, members, avatarFile);
 697                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 698                 g = gv1;
 699             } else {
 700                 messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 701                 g = gv2;
 702             }
 703         } else {
 704             GroupInfo group = getGroupForUpdating(groupId);
 705             if (group instanceof GroupInfoV2) {
 706                 final GroupInfoV2 groupInfoV2 = (GroupInfoV2) group;
 707
 708                 Pair<Long, List<SendMessageResult>> result = null;
 709                 if (groupInfoV2.isPendingMember(getSelfAddress())) {
 710                     Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.acceptInvite(groupInfoV2);
 711                     result = sendUpdateGroupMessage(groupInfoV2,
 712                             groupGroupChangePair.first(),
 713                             groupGroupChangePair.second());
 714                 }
 715
 716                 if (members != null) {
 717                     final Set<SignalServiceAddress> newMembers = new HashSet<>(members);
 718                     newMembers.removeAll(group.getMembers()
 719                             .stream()
 720                             .map(this::resolveSignalServiceAddress)
 721                             .collect(Collectors.toSet()));
 722                     if (newMembers.size() > 0) {
 723                         Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2,
 724                                 newMembers);
 725                         result = sendUpdateGroupMessage(groupInfoV2,
 726                                 groupGroupChangePair.first(),
 727                                 groupGroupChangePair.second());
 728                     }
 729                 }
 730                 if (result == null || name != null || avatarFile != null) {
 731                     Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2,
 732                             name,
 733                             avatarFile);
 734                     result = sendUpdateGroupMessage(groupInfoV2,
 735                             groupGroupChangePair.first(),
 736                             groupGroupChangePair.second());
 737                 }
 738
 739                 return new Pair<>(group.getGroupId(), result.second());
 740             } else {
 741                 GroupInfoV1 gv1 = (GroupInfoV1) group;
 742                 updateGroupV1(gv1, name, members, avatarFile);
 743                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 744                 g = gv1;
 745             }
 746         }
 747
 748         account.getGroupStore().updateGroup(g);
 749
 750         final Pair<Long, List<SendMessageResult>> result = sendMessage(messageBuilder,
 751                 g.getMembersIncludingPendingWithout(account.getSelfAddress()));
 752         return new Pair<>(g.getGroupId(), result.second());
 753     }
 754
 755     public Pair<GroupId, List<SendMessageResult>> joinGroup(
 756             GroupInviteLinkUrl inviteLinkUrl
 757     ) throws IOException, GroupLinkNotActiveException {
 758         return sendJoinGroupMessage(inviteLinkUrl);
 759     }
 760
 761     private Pair<GroupId, List<SendMessageResult>> sendJoinGroupMessage(
 762             GroupInviteLinkUrl inviteLinkUrl
 763     ) throws IOException, GroupLinkNotActiveException {
 764         final DecryptedGroupJoinInfo groupJoinInfo = groupHelper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
 765                 inviteLinkUrl.getPassword());
 766         final GroupChange groupChange = groupHelper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
 767                 inviteLinkUrl.getPassword(),
 768                 groupJoinInfo);
 769         final GroupInfoV2 group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
 770                 groupJoinInfo.getRevision() + 1,
 771                 groupChange.toByteArray());
 772
 773         if (group.getGroup() == null) {
 774             // Only requested member, can't send update to group members
 775             return new Pair<>(group.getGroupId(), List.of());
 776         }
 777
 778         final Pair<Long, List<SendMessageResult>> result = sendUpdateGroupMessage(group, group.getGroup(), groupChange);
 779
 780         return new Pair<>(group.getGroupId(), result.second());
 781     }
 782
 783     private Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 784             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
 785     ) throws IOException {
 786         group.setGroup(newDecryptedGroup);
 787         final SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(group,
 788                 groupChange.toByteArray());
 789         account.getGroupStore().updateGroup(group);
 790         return sendMessage(messageBuilder, group.getMembersIncludingPendingWithout(account.getSelfAddress()));
 791     }
 792
 793     private void updateGroupV1(
 794             final GroupInfoV1 g,
 795             final String name,
 796             final Collection<SignalServiceAddress> members,
 797             final String avatarFile
 798     ) throws IOException {
 799         if (name != null) {
 800             g.name = name;
 801         }
 802
 803         if (members != null) {
 804             final Set<String> newE164Members = new HashSet<>();
 805             for (SignalServiceAddress member : members) {
 806                 if (g.isMember(member) || !member.getNumber().isPresent()) {
 807                     continue;
 808                 }
 809                 newE164Members.add(member.getNumber().get());
 810             }
 811
 812             final List<ContactTokenDetails> contacts = accountManager.getContacts(newE164Members);
 813             if (contacts.size() != newE164Members.size()) {
 814                 // Some of the new members are not registered on Signal
 815                 for (ContactTokenDetails contact : contacts) {
 816                     newE164Members.remove(contact.getNumber());
 817                 }
 818                 throw new IOException("Failed to add members "
 819                         + String.join(", ", newE164Members)
 820                         + " to group: Not registered on Signal");
 821             }
 822
 823             g.addMembers(members);
 824         }
 825
 826         if (avatarFile != null) {
 827             IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
 828             File aFile = getGroupAvatarFile(g.getGroupId());
 829             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 830         }
 831     }
 832
 833     Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 834             GroupIdV1 groupId, SignalServiceAddress recipient
 835     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 836         GroupInfoV1 g;
 837         GroupInfo group = getGroupForSending(groupId);
 838         if (!(group instanceof GroupInfoV1)) {
 839             throw new RuntimeException("Received an invalid group request for a v2 group!");
 840         }
 841         g = (GroupInfoV1) group;
 842
 843         if (!g.isMember(recipient)) {
 844             throw new NotAGroupMemberException(groupId, g.name);
 845         }
 846
 847         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 848
 849         // Send group message only to the recipient who requested it
 850         return sendMessage(messageBuilder, List.of(recipient));
 851     }
 852
 853     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 854         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 855                 .withId(g.getGroupId().serialize())
 856                 .withName(g.name)
 857                 .withMembers(new ArrayList<>(g.getMembers()));
 858
 859         File aFile = getGroupAvatarFile(g.getGroupId());
 860         if (aFile.exists()) {
 861             try {
 862                 group.withAvatar(AttachmentUtils.createAttachment(aFile));
 863             } catch (IOException e) {
 864                 throw new AttachmentInvalidException(aFile.toString(), e);
 865             }
 866         }
 867
 868         return SignalServiceDataMessage.newBuilder()
 869                 .asGroupMessage(group.build())
 870                 .withExpiration(g.getMessageExpirationTime());
 871     }
 872
 873     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
 874         SignalServiceGroupV2.Builder group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
 875                 .withRevision(g.getGroup().getRevision())
 876                 .withSignedGroupChange(signedGroupChange);
 877         return SignalServiceDataMessage.newBuilder()
 878                 .asGroupMessage(group.build())
 879                 .withExpiration(g.getMessageExpirationTime());
 880     }
 881
 882     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
 883             GroupIdV1 groupId, SignalServiceAddress recipient
 884     ) throws IOException {
 885         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 886                 .withId(groupId.serialize());
 887
 888         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 889                 .asGroupMessage(group.build());
 890
 891         // Send group info request message to the recipient who sent us a message with this groupId
 892         return sendMessage(messageBuilder, List.of(recipient));
 893     }
 894
 895     void sendReceipt(
 896             SignalServiceAddress remoteAddress, long messageId
 897     ) throws IOException, UntrustedIdentityException {
 898         SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
 899                 List.of(messageId),
 900                 System.currentTimeMillis());
 901
 902         createMessageSender().sendReceipt(remoteAddress,
 903                 unidentifiedAccessHelper.getAccessFor(remoteAddress),
 904                 receiptMessage);
 905     }
 906
 907     public Pair<Long, List<SendMessageResult>> sendMessage(
 908             String messageText, List<String> attachments, List<String> recipients
 909     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
 910         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 911                 .withBody(messageText);
 912         if (attachments != null) {
 913             List<SignalServiceAttachment> attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
 914
 915             // Upload attachments here, so we only upload once even for multiple recipients
 916             SignalServiceMessageSender messageSender = createMessageSender();
 917             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 918             for (SignalServiceAttachment attachment : attachmentStreams) {
 919                 if (attachment.isStream()) {
 920                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 921                 } else if (attachment.isPointer()) {
 922                     attachmentPointers.add(attachment.asPointer());
 923                 }
 924             }
 925
 926             messageBuilder.withAttachments(attachmentPointers);
 927         }
 928         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
 929     }
 930
 931     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
 932             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
 933     ) throws IOException, InvalidNumberException {
 934         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
 935                 remove,
 936                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
 937                 targetSentTimestamp);
 938         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 939                 .withReaction(reaction);
 940         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
 941     }
 942
 943     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
 944         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
 945
 946         final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
 947         try {
 948             return sendMessage(messageBuilder, signalServiceAddresses);
 949         } catch (Exception e) {
 950             for (SignalServiceAddress address : signalServiceAddresses) {
 951                 handleEndSession(address);
 952             }
 953             account.save();
 954             throw e;
 955         }
 956     }
 957
 958     public String getContactName(String number) throws InvalidNumberException {
 959         ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));
 960         if (contact == null) {
 961             return "";
 962         } else {
 963             return contact.name;
 964         }
 965     }
 966
 967     public void setContactName(String number, String name) throws InvalidNumberException {
 968         final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 969         ContactInfo contact = account.getContactStore().getContact(address);
 970         if (contact == null) {
 971             contact = new ContactInfo(address);
 972         }
 973         contact.name = name;
 974         account.getContactStore().updateContact(contact);
 975         account.save();
 976     }
 977
 978     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
 979         setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
 980     }
 981
 982     private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
 983         ContactInfo contact = account.getContactStore().getContact(address);
 984         if (contact == null) {
 985             contact = new ContactInfo(address);
 986         }
 987         contact.blocked = blocked;
 988         account.getContactStore().updateContact(contact);
 989         account.save();
 990     }
 991
 992     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
 993         GroupInfo group = getGroup(groupId);
 994         if (group == null) {
 995             throw new GroupNotFoundException(groupId);
 996         }
 997
 998         group.setBlocked(blocked);
 999         account.getGroupStore().updateGroup(group);
1000         account.save();
1001     }
1002
1003     public Pair<GroupId, List<SendMessageResult>> updateGroup(
1004             GroupId groupId, String name, List<String> members, String avatar
1005     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
1006         return sendUpdateGroupMessage(groupId,
1007                 name,
1008                 members == null ? null : getSignalServiceAddresses(members),
1009                 avatar);
1010     }
1011
1012     /**
1013      * Change the expiration timer for a contact
1014      */
1015     public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) throws IOException {
1016         ContactInfo contact = account.getContactStore().getContact(address);
1017         contact.messageExpirationTime = messageExpirationTimer;
1018         account.getContactStore().updateContact(contact);
1019         sendExpirationTimerUpdate(address);
1020         account.save();
1021     }
1022
1023     private void sendExpirationTimerUpdate(SignalServiceAddress address) throws IOException {
1024         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1025                 .asExpirationUpdate();
1026         sendMessage(messageBuilder, List.of(address));
1027     }
1028
1029     /**
1030      * Change the expiration timer for a contact
1031      */
1032     public void setExpirationTimer(
1033             String number, int messageExpirationTimer
1034     ) throws IOException, InvalidNumberException {
1035         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
1036         setExpirationTimer(address, messageExpirationTimer);
1037     }
1038
1039     /**
1040      * Change the expiration timer for a group
1041      */
1042     public void setExpirationTimer(GroupId groupId, int messageExpirationTimer) {
1043         GroupInfo g = getGroup(groupId);
1044         if (g instanceof GroupInfoV1) {
1045             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
1046             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1047             account.getGroupStore().updateGroup(groupInfoV1);
1048         } else {
1049             throw new RuntimeException("TODO Not implemented!");
1050         }
1051     }
1052
1053     /**
1054      * Upload the sticker pack from path.
1055      *
1056      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1057      * @return if successful, returns the URL to install the sticker pack in the signal app
1058      */
1059     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1060         SignalServiceStickerManifestUpload manifest = getSignalServiceStickerManifestUpload(path);
1061
1062         SignalServiceMessageSender messageSender = createMessageSender();
1063
1064         byte[] packKey = KeyUtils.createStickerUploadKey();
1065         String packId = messageSender.uploadStickerManifest(manifest, packKey);
1066
1067         Sticker sticker = new Sticker(Hex.fromStringCondensed(packId), packKey);
1068         account.getStickerStore().updateSticker(sticker);
1069         account.save();
1070
1071         try {
1072             return new URI("https",
1073                     "signal.art",
1074                     "/addstickers/",
1075                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1076                             Hex.toStringCondensed(packKey),
1077                             StandardCharsets.UTF_8)).toString();
1078         } catch (URISyntaxException e) {
1079             throw new AssertionError(e);
1080         }
1081     }
1082
1083     private SignalServiceStickerManifestUpload getSignalServiceStickerManifestUpload(
1084             final File file
1085     ) throws IOException, StickerPackInvalidException {
1086         ZipFile zip = null;
1087         String rootPath = null;
1088
1089         if (file.getName().endsWith(".zip")) {
1090             zip = new ZipFile(file);
1091         } else if (file.getName().equals("manifest.json")) {
1092             rootPath = file.getParent();
1093         } else {
1094             throw new StickerPackInvalidException("Could not find manifest.json");
1095         }
1096
1097         JsonStickerPack pack = parseStickerPack(rootPath, zip);
1098
1099         if (pack.stickers == null) {
1100             throw new StickerPackInvalidException("Must set a 'stickers' field.");
1101         }
1102
1103         if (pack.stickers.isEmpty()) {
1104             throw new StickerPackInvalidException("Must include stickers.");
1105         }
1106
1107         List<StickerInfo> stickers = new ArrayList<>(pack.stickers.size());
1108         for (JsonStickerPack.JsonSticker sticker : pack.stickers) {
1109             if (sticker.file == null) {
1110                 throw new StickerPackInvalidException("Must set a 'file' field on each sticker.");
1111             }
1112
1113             Pair<InputStream, Long> data;
1114             try {
1115                 data = getInputStreamAndLength(rootPath, zip, sticker.file);
1116             } catch (IOException ignored) {
1117                 throw new StickerPackInvalidException("Could not find find " + sticker.file);
1118             }
1119
1120             String contentType = Utils.getFileMimeType(new File(sticker.file), null);
1121             StickerInfo stickerInfo = new StickerInfo(data.first(),
1122                     data.second(),
1123                     Optional.fromNullable(sticker.emoji).or(""),
1124                     contentType);
1125             stickers.add(stickerInfo);
1126         }
1127
1128         StickerInfo cover = null;
1129         if (pack.cover != null) {
1130             if (pack.cover.file == null) {
1131                 throw new StickerPackInvalidException("Must set a 'file' field on the cover.");
1132             }
1133
1134             Pair<InputStream, Long> data;
1135             try {
1136                 data = getInputStreamAndLength(rootPath, zip, pack.cover.file);
1137             } catch (IOException ignored) {
1138                 throw new StickerPackInvalidException("Could not find find " + pack.cover.file);
1139             }
1140
1141             String contentType = Utils.getFileMimeType(new File(pack.cover.file), null);
1142             cover = new StickerInfo(data.first(),
1143                     data.second(),
1144                     Optional.fromNullable(pack.cover.emoji).or(""),
1145                     contentType);
1146         }
1147
1148         return new SignalServiceStickerManifestUpload(pack.title, pack.author, cover, stickers);
1149     }
1150
1151     private static JsonStickerPack parseStickerPack(String rootPath, ZipFile zip) throws IOException {
1152         InputStream inputStream;
1153         if (zip != null) {
1154             inputStream = zip.getInputStream(zip.getEntry("manifest.json"));
1155         } else {
1156             inputStream = new FileInputStream((new File(rootPath, "manifest.json")));
1157         }
1158         return new ObjectMapper().readValue(inputStream, JsonStickerPack.class);
1159     }
1160
1161     private static Pair<InputStream, Long> getInputStreamAndLength(
1162             final String rootPath, final ZipFile zip, final String subfile
1163     ) throws IOException {
1164         if (zip != null) {
1165             final ZipEntry entry = zip.getEntry(subfile);
1166             return new Pair<>(zip.getInputStream(entry), entry.getSize());
1167         } else {
1168             final File file = new File(rootPath, subfile);
1169             return new Pair<>(new FileInputStream(file), file.length());
1170         }
1171     }
1172
1173     void requestSyncGroups() throws IOException {
1174         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1175                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1176                 .build();
1177         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1178         try {
1179             sendSyncMessage(message);
1180         } catch (UntrustedIdentityException e) {
1181             e.printStackTrace();
1182         }
1183     }
1184
1185     void requestSyncContacts() throws IOException {
1186         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1187                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1188                 .build();
1189         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1190         try {
1191             sendSyncMessage(message);
1192         } catch (UntrustedIdentityException e) {
1193             e.printStackTrace();
1194         }
1195     }
1196
1197     void requestSyncBlocked() throws IOException {
1198         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1199                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1200                 .build();
1201         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1202         try {
1203             sendSyncMessage(message);
1204         } catch (UntrustedIdentityException e) {
1205             e.printStackTrace();
1206         }
1207     }
1208
1209     void requestSyncConfiguration() throws IOException {
1210         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1211                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1212                 .build();
1213         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1214         try {
1215             sendSyncMessage(message);
1216         } catch (UntrustedIdentityException e) {
1217             e.printStackTrace();
1218         }
1219     }
1220
1221     private byte[] getSenderCertificate() {
1222         // TODO support UUID capable sender certificates
1223         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1224         byte[] certificate;
1225         try {
1226             certificate = accountManager.getSenderCertificate();
1227         } catch (IOException e) {
1228             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1229             return null;
1230         }
1231         // TODO cache for a day
1232         return certificate;
1233     }
1234
1235     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1236         SignalServiceMessageSender messageSender = createMessageSender();
1237         try {
1238             messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1239         } catch (UntrustedIdentityException e) {
1240             account.getSignalProtocolStore()
1241                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1242                             e.getIdentityKey(),
1243                             TrustLevel.UNTRUSTED);
1244             throw e;
1245         }
1246     }
1247
1248     private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1249         final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
1250         final Set<SignalServiceAddress> missingUuids = new HashSet<>();
1251
1252         for (String number : numbers) {
1253             final SignalServiceAddress resolvedAddress = canonicalizeAndResolveSignalServiceAddress(number);
1254             if (resolvedAddress.getUuid().isPresent()) {
1255                 signalServiceAddresses.add(resolvedAddress);
1256             } else {
1257                 missingUuids.add(resolvedAddress);
1258             }
1259         }
1260
1261         Map<String, UUID> registeredUsers;
1262         try {
1263             registeredUsers = accountManager.getRegisteredUsers(getIasKeyStore(),
1264                     missingUuids.stream().map(a -> a.getNumber().get()).collect(Collectors.toSet()),
1265                     CDS_MRENCLAVE);
1266         } catch (IOException | Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException e) {
1267             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1268             registeredUsers = new HashMap<>();
1269         }
1270
1271         for (SignalServiceAddress address : missingUuids) {
1272             final String number = address.getNumber().get();
1273             if (registeredUsers.containsKey(number)) {
1274                 final SignalServiceAddress newAddress = resolveSignalServiceAddress(new SignalServiceAddress(
1275                         registeredUsers.get(number),
1276                         number));
1277                 signalServiceAddresses.add(newAddress);
1278             } else {
1279                 signalServiceAddresses.add(address);
1280             }
1281         }
1282
1283         return signalServiceAddresses;
1284     }
1285
1286     private Pair<Long, List<SendMessageResult>> sendMessage(
1287             SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients
1288     ) throws IOException {
1289         recipients = recipients.stream().map(this::resolveSignalServiceAddress).collect(Collectors.toSet());
1290         final long timestamp = System.currentTimeMillis();
1291         messageBuilder.withTimestamp(timestamp);
1292         getOrCreateMessagePipe();
1293         getOrCreateUnidentifiedMessagePipe();
1294         SignalServiceDataMessage message = null;
1295         try {
1296             message = messageBuilder.build();
1297             if (message.getGroupContext().isPresent()) {
1298                 try {
1299                     SignalServiceMessageSender messageSender = createMessageSender();
1300                     final boolean isRecipientUpdate = false;
1301                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients),
1302                             unidentifiedAccessHelper.getAccessFor(recipients),
1303                             isRecipientUpdate,
1304                             message);
1305                     for (SendMessageResult r : result) {
1306                         if (r.getIdentityFailure() != null) {
1307                             account.getSignalProtocolStore()
1308                                     .saveIdentity(r.getAddress(),
1309                                             r.getIdentityFailure().getIdentityKey(),
1310                                             TrustLevel.UNTRUSTED);
1311                         }
1312                     }
1313                     return new Pair<>(timestamp, result);
1314                 } catch (UntrustedIdentityException e) {
1315                     account.getSignalProtocolStore()
1316                             .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1317                                     e.getIdentityKey(),
1318                                     TrustLevel.UNTRUSTED);
1319                     return new Pair<>(timestamp, List.of());
1320                 }
1321             } else {
1322                 // Send to all individually, so sync messages are sent correctly
1323                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1324                 for (SignalServiceAddress address : recipients) {
1325                     ContactInfo contact = account.getContactStore().getContact(address);
1326                     if (contact != null) {
1327                         messageBuilder.withExpiration(contact.messageExpirationTime);
1328                         messageBuilder.withProfileKey(account.getProfileKey().serialize());
1329                     } else {
1330                         messageBuilder.withExpiration(0);
1331                         messageBuilder.withProfileKey(null);
1332                     }
1333                     message = messageBuilder.build();
1334                     if (address.matches(account.getSelfAddress())) {
1335                         results.add(sendSelfMessage(message));
1336                     } else {
1337                         results.add(sendMessage(address, message));
1338                     }
1339                 }
1340                 return new Pair<>(timestamp, results);
1341             }
1342         } finally {
1343             if (message != null && message.isEndSession()) {
1344                 for (SignalServiceAddress recipient : recipients) {
1345                     handleEndSession(recipient);
1346                 }
1347             }
1348             account.save();
1349         }
1350     }
1351
1352     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1353         SignalServiceMessageSender messageSender = createMessageSender();
1354
1355         SignalServiceAddress recipient = account.getSelfAddress();
1356
1357         final Optional<UnidentifiedAccessPair> unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipient);
1358         SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1359                 message.getTimestamp(),
1360                 message,
1361                 message.getExpiresInSeconds(),
1362                 Map.of(recipient, unidentifiedAccess.isPresent()),
1363                 false);
1364         SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1365
1366         try {
1367             long startTime = System.currentTimeMillis();
1368             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1369             return SendMessageResult.success(recipient,
1370                     unidentifiedAccess.isPresent(),
1371                     false,
1372                     System.currentTimeMillis() - startTime);
1373         } catch (UntrustedIdentityException e) {
1374             account.getSignalProtocolStore()
1375                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1376                             e.getIdentityKey(),
1377                             TrustLevel.UNTRUSTED);
1378             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1379         }
1380     }
1381
1382     private SendMessageResult sendMessage(
1383             SignalServiceAddress address, SignalServiceDataMessage message
1384     ) throws IOException {
1385         SignalServiceMessageSender messageSender = createMessageSender();
1386
1387         try {
1388             return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(address), message);
1389         } catch (UntrustedIdentityException e) {
1390             account.getSignalProtocolStore()
1391                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1392                             e.getIdentityKey(),
1393                             TrustLevel.UNTRUSTED);
1394             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1395         }
1396     }
1397
1398     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1399         SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(),
1400                 account.getSignalProtocolStore(),
1401                 certificateValidator);
1402         try {
1403             return cipher.decrypt(envelope);
1404         } catch (ProtocolUntrustedIdentityException e) {
1405             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1406                 org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e
1407                         .getCause();
1408                 account.getSignalProtocolStore()
1409                         .saveIdentity(resolveSignalServiceAddress(identityException.getName()),
1410                                 identityException.getUntrustedIdentity(),
1411                                 TrustLevel.UNTRUSTED);
1412                 throw identityException;
1413             }
1414             throw new AssertionError(e);
1415         }
1416     }
1417
1418     private void handleEndSession(SignalServiceAddress source) {
1419         account.getSignalProtocolStore().deleteAllSessions(source);
1420     }
1421
1422     private static int currentTimeDays() {
1423         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
1424     }
1425
1426     private GroupsV2AuthorizationString getGroupAuthForToday(
1427             final GroupSecretParams groupSecretParams
1428     ) throws IOException {
1429         final int today = currentTimeDays();
1430         // Returns credentials for the next 7 days
1431         final HashMap<Integer, AuthCredentialResponse> credentials = groupsV2Api.getCredentials(today);
1432         // TODO cache credentials until they expire
1433         AuthCredentialResponse authCredentialResponse = credentials.get(today);
1434         try {
1435             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
1436                     today,
1437                     groupSecretParams,
1438                     authCredentialResponse);
1439         } catch (VerificationFailedException e) {
1440             throw new IOException(e);
1441         }
1442     }
1443
1444     private List<HandleAction> handleSignalServiceDataMessage(
1445             SignalServiceDataMessage message,
1446             boolean isSync,
1447             SignalServiceAddress source,
1448             SignalServiceAddress destination,
1449             boolean ignoreAttachments
1450     ) {
1451         List<HandleAction> actions = new ArrayList<>();
1452         if (message.getGroupContext().isPresent()) {
1453             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1454                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1455                 GroupIdV1 groupId = GroupId.v1(groupInfo.getGroupId());
1456                 GroupInfo group = getGroup(groupId);
1457                 if (group == null || group instanceof GroupInfoV1) {
1458                     GroupInfoV1 groupV1 = (GroupInfoV1) group;
1459                     switch (groupInfo.getType()) {
1460                         case UPDATE: {
1461                             if (groupV1 == null) {
1462                                 groupV1 = new GroupInfoV1(groupId);
1463                             }
1464
1465                             if (groupInfo.getAvatar().isPresent()) {
1466                                 SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1467                                 if (avatar.isPointer()) {
1468                                     try {
1469                                         retrieveGroupAvatarAttachment(avatar.asPointer(), groupV1.getGroupId());
1470                                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1471                                         logger.warn("Failed to retrieve avatar for group {}, ignoring: {}",
1472                                                 groupId.toBase64(),
1473                                                 e.getMessage());
1474                                     }
1475                                 }
1476                             }
1477
1478                             if (groupInfo.getName().isPresent()) {
1479                                 groupV1.name = groupInfo.getName().get();
1480                             }
1481
1482                             if (groupInfo.getMembers().isPresent()) {
1483                                 groupV1.addMembers(groupInfo.getMembers()
1484                                         .get()
1485                                         .stream()
1486                                         .map(this::resolveSignalServiceAddress)
1487                                         .collect(Collectors.toSet()));
1488                             }
1489
1490                             account.getGroupStore().updateGroup(groupV1);
1491                             break;
1492                         }
1493                         case DELIVER:
1494                             if (groupV1 == null && !isSync) {
1495                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1496                             }
1497                             break;
1498                         case QUIT: {
1499                             if (groupV1 != null) {
1500                                 groupV1.removeMember(source);
1501                                 account.getGroupStore().updateGroup(groupV1);
1502                             }
1503                             break;
1504                         }
1505                         case REQUEST_INFO:
1506                             if (groupV1 != null && !isSync) {
1507                                 actions.add(new SendGroupUpdateAction(source, groupV1.getGroupId()));
1508                             }
1509                             break;
1510                     }
1511                 } else {
1512                     // Received a group v1 message for a v2 group
1513                 }
1514             }
1515             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1516                 final SignalServiceGroupV2 groupContext = message.getGroupContext().get().getGroupV2().get();
1517                 final GroupMasterKey groupMasterKey = groupContext.getMasterKey();
1518
1519                 getOrMigrateGroup(groupMasterKey,
1520                         groupContext.getRevision(),
1521                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1522             }
1523         }
1524
1525         final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;
1526         if (conversationPartnerAddress != null && message.isEndSession()) {
1527             handleEndSession(conversationPartnerAddress);
1528         }
1529         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1530             if (message.getGroupContext().isPresent()) {
1531                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1532                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1533                     GroupInfoV1 group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1534                     if (group != null) {
1535                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1536                             group.messageExpirationTime = message.getExpiresInSeconds();
1537                             account.getGroupStore().updateGroup(group);
1538                         }
1539                     }
1540                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1541                     // disappearing message timer already stored in the DecryptedGroup
1542                 }
1543             } else if (conversationPartnerAddress != null) {
1544                 ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
1545                 if (contact == null) {
1546                     contact = new ContactInfo(conversationPartnerAddress);
1547                 }
1548                 if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
1549                     contact.messageExpirationTime = message.getExpiresInSeconds();
1550                     account.getContactStore().updateContact(contact);
1551                 }
1552             }
1553         }
1554         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1555             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1556                 if (attachment.isPointer()) {
1557                     try {
1558                         retrieveAttachment(attachment.asPointer());
1559                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1560                         logger.warn("Failed to retrieve attachment ({}), ignoring: {}",
1561                                 attachment.asPointer().getRemoteId(),
1562                                 e.getMessage());
1563                     }
1564                 }
1565             }
1566         }
1567         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1568             final ProfileKey profileKey;
1569             try {
1570                 profileKey = new ProfileKey(message.getProfileKey().get());
1571             } catch (InvalidInputException e) {
1572                 throw new AssertionError(e);
1573             }
1574             if (source.matches(account.getSelfAddress())) {
1575                 this.account.setProfileKey(profileKey);
1576             }
1577             this.account.getProfileStore().storeProfileKey(source, profileKey);
1578         }
1579         if (message.getPreviews().isPresent()) {
1580             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1581             for (SignalServiceDataMessage.Preview preview : previews) {
1582                 if (preview.getImage().isPresent() && preview.getImage().get().isPointer()) {
1583                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
1584                     try {
1585                         retrieveAttachment(attachment);
1586                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1587                         logger.warn("Failed to retrieve preview image ({}), ignoring: {}",
1588                                 attachment.getRemoteId(),
1589                                 e.getMessage());
1590                     }
1591                 }
1592             }
1593         }
1594         if (message.getQuote().isPresent()) {
1595             final SignalServiceDataMessage.Quote quote = message.getQuote().get();
1596
1597             for (SignalServiceDataMessage.Quote.QuotedAttachment quotedAttachment : quote.getAttachments()) {
1598                 final SignalServiceAttachment attachment = quotedAttachment.getThumbnail();
1599                 if (attachment != null && attachment.isPointer()) {
1600                     try {
1601                         retrieveAttachment(attachment.asPointer());
1602                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1603                         logger.warn("Failed to retrieve quote attachment thumbnail ({}), ignoring: {}",
1604                                 attachment.asPointer().getRemoteId(),
1605                                 e.getMessage());
1606                     }
1607                 }
1608             }
1609         }
1610         if (message.getSticker().isPresent()) {
1611             final SignalServiceDataMessage.Sticker messageSticker = message.getSticker().get();
1612             Sticker sticker = account.getStickerStore().getSticker(messageSticker.getPackId());
1613             if (sticker == null) {
1614                 sticker = new Sticker(messageSticker.getPackId(), messageSticker.getPackKey());
1615                 account.getStickerStore().updateSticker(sticker);
1616             }
1617         }
1618         return actions;
1619     }
1620
1621     private GroupInfoV2 getOrMigrateGroup(
1622             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1623     ) {
1624         final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1625
1626         GroupIdV2 groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1627         GroupInfo groupInfo = getGroup(groupId);
1628         final GroupInfoV2 groupInfoV2;
1629         if (groupInfo instanceof GroupInfoV1) {
1630             // Received a v2 group message for a v1 group, we need to locally migrate the group
1631             account.getGroupStore().deleteGroup(groupInfo.getGroupId());
1632             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1633             logger.info("Locally migrated group {} to group v2, id: {}",
1634                     groupInfo.getGroupId().toBase64(),
1635                     groupInfoV2.getGroupId().toBase64());
1636         } else if (groupInfo instanceof GroupInfoV2) {
1637             groupInfoV2 = (GroupInfoV2) groupInfo;
1638         } else {
1639             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1640         }
1641
1642         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1643             DecryptedGroup group = null;
1644             if (signedGroupChange != null
1645                     && groupInfoV2.getGroup() != null
1646                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1647                 group = groupHelper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(), signedGroupChange, groupMasterKey);
1648             }
1649             if (group == null) {
1650                 group = groupHelper.getDecryptedGroup(groupSecretParams);
1651             }
1652             if (group != null) {
1653                 storeProfileKeysFromMembers(group);
1654                 final String avatar = group.getAvatar();
1655                 if (avatar != null && !avatar.isEmpty()) {
1656                     try {
1657                         retrieveGroupAvatar(groupId, groupSecretParams, avatar);
1658                     } catch (IOException e) {
1659                         logger.warn("Failed to download group avatar, ignoring: {}", e.getMessage());
1660                     }
1661                 }
1662             }
1663             groupInfoV2.setGroup(group);
1664             account.getGroupStore().updateGroup(groupInfoV2);
1665         }
1666
1667         return groupInfoV2;
1668     }
1669
1670     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1671         for (DecryptedMember member : group.getMembersList()) {
1672             final SignalServiceAddress address = resolveSignalServiceAddress(new SignalServiceAddress(UuidUtil.parseOrThrow(
1673                     member.getUuid().toByteArray()), null));
1674             try {
1675                 account.getProfileStore()
1676                         .storeProfileKey(address, new ProfileKey(member.getProfileKey().toByteArray()));
1677             } catch (InvalidInputException ignored) {
1678             }
1679         }
1680     }
1681
1682     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1683         for (CachedMessage cachedMessage : account.getMessageCache().getCachedMessages()) {
1684             retryFailedReceivedMessage(handler, ignoreAttachments, cachedMessage);
1685         }
1686     }
1687
1688     private void retryFailedReceivedMessage(
1689             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final CachedMessage cachedMessage
1690     ) {
1691         SignalServiceEnvelope envelope = cachedMessage.loadEnvelope();
1692         if (envelope == null) {
1693             return;
1694         }
1695         SignalServiceContent content = null;
1696         if (!envelope.isReceipt()) {
1697             try {
1698                 content = decryptMessage(envelope);
1699             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1700                 return;
1701             } catch (Exception er) {
1702                 // All other errors are not recoverable, so delete the cached message
1703                 cachedMessage.delete();
1704                 return;
1705             }
1706             List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1707             for (HandleAction action : actions) {
1708                 try {
1709                     action.execute(this);
1710                 } catch (Throwable e) {
1711                     e.printStackTrace();
1712                 }
1713             }
1714         }
1715         account.save();
1716         handler.handleMessage(envelope, content, null);
1717         cachedMessage.delete();
1718     }
1719
1720     public void receiveMessages(
1721             long timeout,
1722             TimeUnit unit,
1723             boolean returnOnTimeout,
1724             boolean ignoreAttachments,
1725             ReceiveMessageHandler handler
1726     ) throws IOException {
1727         retryFailedReceivedMessages(handler, ignoreAttachments);
1728
1729         Set<HandleAction> queuedActions = null;
1730
1731         final SignalServiceMessagePipe messagePipe = getOrCreateMessagePipe();
1732
1733         boolean hasCaughtUpWithOldMessages = false;
1734
1735         while (true) {
1736             SignalServiceEnvelope envelope;
1737             SignalServiceContent content = null;
1738             Exception exception = null;
1739             final CachedMessage[] cachedMessage = {null};
1740             try {
1741                 Optional<SignalServiceEnvelope> result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1742                     // store message on disk, before acknowledging receipt to the server
1743                     cachedMessage[0] = account.getMessageCache().cacheMessage(envelope1);
1744                 });
1745                 if (result.isPresent()) {
1746                     envelope = result.get();
1747                 } else {
1748                     // Received indicator that server queue is empty
1749                     hasCaughtUpWithOldMessages = true;
1750
1751                     if (queuedActions != null) {
1752                         for (HandleAction action : queuedActions) {
1753                             try {
1754                                 action.execute(this);
1755                             } catch (Throwable e) {
1756                                 e.printStackTrace();
1757                             }
1758                         }
1759                         account.save();
1760                         queuedActions.clear();
1761                         queuedActions = null;
1762                     }
1763
1764                     // Continue to wait another timeout for new messages
1765                     continue;
1766                 }
1767             } catch (TimeoutException e) {
1768                 if (returnOnTimeout) return;
1769                 continue;
1770             } catch (InvalidVersionException e) {
1771                 logger.warn("Error while receiving messages, ignoring: {}", e.getMessage());
1772                 continue;
1773             }
1774
1775             if (envelope.hasSource()) {
1776                 // Store uuid if we don't have it already
1777                 SignalServiceAddress source = envelope.getSourceAddress();
1778                 resolveSignalServiceAddress(source);
1779             }
1780             if (!envelope.isReceipt()) {
1781                 try {
1782                     content = decryptMessage(envelope);
1783                 } catch (Exception e) {
1784                     exception = e;
1785                 }
1786                 List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1787                 if (hasCaughtUpWithOldMessages) {
1788                     for (HandleAction action : actions) {
1789                         try {
1790                             action.execute(this);
1791                         } catch (Throwable e) {
1792                             e.printStackTrace();
1793                         }
1794                     }
1795                 } else {
1796                     if (queuedActions == null) {
1797                         queuedActions = new HashSet<>();
1798                     }
1799                     queuedActions.addAll(actions);
1800                 }
1801             }
1802             account.save();
1803             if (isMessageBlocked(envelope, content)) {
1804                 logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
1805             } else if (isNotAGroupMember(envelope, content)) {
1806                 logger.info("Ignoring a message from a non group member: {}", envelope.getTimestamp());
1807             } else {
1808                 handler.handleMessage(envelope, content, exception);
1809             }
1810             if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
1811                 if (cachedMessage[0] != null) {
1812                     cachedMessage[0].delete();
1813                 }
1814             }
1815         }
1816     }
1817
1818     private boolean isMessageBlocked(
1819             SignalServiceEnvelope envelope, SignalServiceContent content
1820     ) {
1821         SignalServiceAddress source;
1822         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1823             source = envelope.getSourceAddress();
1824         } else if (content != null) {
1825             source = content.getSender();
1826         } else {
1827             return false;
1828         }
1829         ContactInfo sourceContact = account.getContactStore().getContact(source);
1830         if (sourceContact != null && sourceContact.blocked) {
1831             return true;
1832         }
1833
1834         if (content != null && content.getDataMessage().isPresent()) {
1835             SignalServiceDataMessage message = content.getDataMessage().get();
1836             if (message.getGroupContext().isPresent()) {
1837                 GroupId groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1838                 GroupInfo group = getGroup(groupId);
1839                 if (group != null && group.isBlocked()) {
1840                     return true;
1841                 }
1842             }
1843         }
1844         return false;
1845     }
1846
1847     private boolean isNotAGroupMember(
1848             SignalServiceEnvelope envelope, SignalServiceContent content
1849     ) {
1850         SignalServiceAddress source;
1851         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1852             source = envelope.getSourceAddress();
1853         } else if (content != null) {
1854             source = content.getSender();
1855         } else {
1856             return false;
1857         }
1858
1859         if (content != null && content.getDataMessage().isPresent()) {
1860             SignalServiceDataMessage message = content.getDataMessage().get();
1861             if (message.getGroupContext().isPresent()) {
1862                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1863                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1864                     if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
1865                         return false;
1866                     }
1867                 }
1868                 GroupId groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1869                 GroupInfo group = getGroup(groupId);
1870                 if (group != null && !group.isMember(source)) {
1871                     return true;
1872                 }
1873             }
1874         }
1875         return false;
1876     }
1877
1878     private List<HandleAction> handleMessage(
1879             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
1880     ) {
1881         List<HandleAction> actions = new ArrayList<>();
1882         if (content != null) {
1883             final SignalServiceAddress sender;
1884             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1885                 sender = envelope.getSourceAddress();
1886             } else {
1887                 sender = content.getSender();
1888             }
1889             // Store uuid if we don't have it already
1890             resolveSignalServiceAddress(sender);
1891
1892             if (content.getDataMessage().isPresent()) {
1893                 SignalServiceDataMessage message = content.getDataMessage().get();
1894
1895                 if (content.isNeedsReceipt()) {
1896                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1897                 }
1898
1899                 actions.addAll(handleSignalServiceDataMessage(message,
1900                         false,
1901                         sender,
1902                         account.getSelfAddress(),
1903                         ignoreAttachments));
1904             }
1905             if (content.getSyncMessage().isPresent()) {
1906                 account.setMultiDevice(true);
1907                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1908                 if (syncMessage.getSent().isPresent()) {
1909                     SentTranscriptMessage message = syncMessage.getSent().get();
1910                     final SignalServiceAddress destination = message.getDestination().orNull();
1911                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
1912                             true,
1913                             sender,
1914                             destination,
1915                             ignoreAttachments));
1916                 }
1917                 if (syncMessage.getRequest().isPresent()) {
1918                     RequestMessage rm = syncMessage.getRequest().get();
1919                     if (rm.isContactsRequest()) {
1920                         actions.add(SendSyncContactsAction.create());
1921                     }
1922                     if (rm.isGroupsRequest()) {
1923                         actions.add(SendSyncGroupsAction.create());
1924                     }
1925                     if (rm.isBlockedListRequest()) {
1926                         actions.add(SendSyncBlockedListAction.create());
1927                     }
1928                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
1929                 }
1930                 if (syncMessage.getGroups().isPresent()) {
1931                     File tmpFile = null;
1932                     try {
1933                         tmpFile = IOUtils.createTempFile();
1934                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups()
1935                                 .get()
1936                                 .asPointer(), tmpFile)) {
1937                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1938                             DeviceGroup g;
1939                             while ((g = s.read()) != null) {
1940                                 GroupInfoV1 syncGroup = account.getGroupStore()
1941                                         .getOrCreateGroupV1(GroupId.v1(g.getId()));
1942                                 if (syncGroup != null) {
1943                                     if (g.getName().isPresent()) {
1944                                         syncGroup.name = g.getName().get();
1945                                     }
1946                                     syncGroup.addMembers(g.getMembers()
1947                                             .stream()
1948                                             .map(this::resolveSignalServiceAddress)
1949                                             .collect(Collectors.toSet()));
1950                                     if (!g.isActive()) {
1951                                         syncGroup.removeMember(account.getSelfAddress());
1952                                     } else {
1953                                         // Add ourself to the member set as it's marked as active
1954                                         syncGroup.addMembers(List.of(account.getSelfAddress()));
1955                                     }
1956                                     syncGroup.blocked = g.isBlocked();
1957                                     if (g.getColor().isPresent()) {
1958                                         syncGroup.color = g.getColor().get();
1959                                     }
1960
1961                                     if (g.getAvatar().isPresent()) {
1962                                         retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.getGroupId());
1963                                     }
1964                                     syncGroup.inboxPosition = g.getInboxPosition().orNull();
1965                                     syncGroup.archived = g.isArchived();
1966                                     account.getGroupStore().updateGroup(syncGroup);
1967                                 }
1968                             }
1969                         }
1970                     } catch (Exception e) {
1971                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
1972                                 tmpFile,
1973                                 e.getMessage());
1974                         e.printStackTrace();
1975                     } finally {
1976                         if (tmpFile != null) {
1977                             try {
1978                                 Files.delete(tmpFile.toPath());
1979                             } catch (IOException e) {
1980                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
1981                                         tmpFile,
1982                                         e.getMessage());
1983                             }
1984                         }
1985                     }
1986                 }
1987                 if (syncMessage.getBlockedList().isPresent()) {
1988                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1989                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1990                         setContactBlocked(resolveSignalServiceAddress(address), true);
1991                     }
1992                     for (GroupId groupId : blockedListMessage.getGroupIds()
1993                             .stream()
1994                             .map(GroupId::unknownVersion)
1995                             .collect(Collectors.toSet())) {
1996                         try {
1997                             setGroupBlocked(groupId, true);
1998                         } catch (GroupNotFoundException e) {
1999                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2000                                     groupId.toBase64());
2001                         }
2002                     }
2003                 }
2004                 if (syncMessage.getContacts().isPresent()) {
2005                     File tmpFile = null;
2006                     try {
2007                         tmpFile = IOUtils.createTempFile();
2008                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
2009                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2010                                 .asPointer(), tmpFile)) {
2011                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
2012                             if (contactsMessage.isComplete()) {
2013                                 account.getContactStore().clear();
2014                             }
2015                             DeviceContact c;
2016                             while ((c = s.read()) != null) {
2017                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2018                                     account.setProfileKey(c.getProfileKey().get());
2019                                 }
2020                                 final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
2021                                 ContactInfo contact = account.getContactStore().getContact(address);
2022                                 if (contact == null) {
2023                                     contact = new ContactInfo(address);
2024                                 }
2025                                 if (c.getName().isPresent()) {
2026                                     contact.name = c.getName().get();
2027                                 }
2028                                 if (c.getColor().isPresent()) {
2029                                     contact.color = c.getColor().get();
2030                                 }
2031                                 if (c.getProfileKey().isPresent()) {
2032                                     account.getProfileStore().storeProfileKey(address, c.getProfileKey().get());
2033                                 }
2034                                 if (c.getVerified().isPresent()) {
2035                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
2036                                     account.getSignalProtocolStore()
2037                                             .setIdentityTrustLevel(verifiedMessage.getDestination(),
2038                                                     verifiedMessage.getIdentityKey(),
2039                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2040                                 }
2041                                 if (c.getExpirationTimer().isPresent()) {
2042                                     contact.messageExpirationTime = c.getExpirationTimer().get();
2043                                 }
2044                                 contact.blocked = c.isBlocked();
2045                                 contact.inboxPosition = c.getInboxPosition().orNull();
2046                                 contact.archived = c.isArchived();
2047                                 account.getContactStore().updateContact(contact);
2048
2049                                 if (c.getAvatar().isPresent()) {
2050                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
2051                                 }
2052                             }
2053                         }
2054                     } catch (Exception e) {
2055                         e.printStackTrace();
2056                     } finally {
2057                         if (tmpFile != null) {
2058                             try {
2059                                 Files.delete(tmpFile.toPath());
2060                             } catch (IOException e) {
2061                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2062                                         tmpFile,
2063                                         e.getMessage());
2064                             }
2065                         }
2066                     }
2067                 }
2068                 if (syncMessage.getVerified().isPresent()) {
2069                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
2070                     account.getSignalProtocolStore()
2071                             .setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()),
2072                                     verifiedMessage.getIdentityKey(),
2073                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2074                 }
2075                 if (syncMessage.getStickerPackOperations().isPresent()) {
2076                     final List<StickerPackOperationMessage> stickerPackOperationMessages = syncMessage.getStickerPackOperations()
2077                             .get();
2078                     for (StickerPackOperationMessage m : stickerPackOperationMessages) {
2079                         if (!m.getPackId().isPresent()) {
2080                             continue;
2081                         }
2082                         Sticker sticker = account.getStickerStore().getSticker(m.getPackId().get());
2083                         if (sticker == null) {
2084                             if (!m.getPackKey().isPresent()) {
2085                                 continue;
2086                             }
2087                             sticker = new Sticker(m.getPackId().get(), m.getPackKey().get());
2088                         }
2089                         sticker.setInstalled(!m.getType().isPresent()
2090                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2091                         account.getStickerStore().updateSticker(sticker);
2092                     }
2093                 }
2094                 if (syncMessage.getConfiguration().isPresent()) {
2095                     // TODO
2096                 }
2097             }
2098         }
2099         return actions;
2100     }
2101
2102     private File getContactAvatarFile(String number) {
2103         return new File(pathConfig.getAvatarsPath(), "contact-" + number);
2104     }
2105
2106     private File retrieveContactAvatarAttachment(
2107             SignalServiceAttachment attachment, String number
2108     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2109         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2110         if (attachment.isPointer()) {
2111             SignalServiceAttachmentPointer pointer = attachment.asPointer();
2112             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
2113         } else {
2114             SignalServiceAttachmentStream stream = attachment.asStream();
2115             return AttachmentUtils.retrieveAttachment(stream, getContactAvatarFile(number));
2116         }
2117     }
2118
2119     private File getGroupAvatarFile(GroupId groupId) {
2120         return new File(pathConfig.getAvatarsPath(), "group-" + groupId.toBase64().replace("/", "_"));
2121     }
2122
2123     private File retrieveGroupAvatarAttachment(
2124             SignalServiceAttachment attachment, GroupId groupId
2125     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2126         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2127         if (attachment.isPointer()) {
2128             SignalServiceAttachmentPointer pointer = attachment.asPointer();
2129             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
2130         } else {
2131             SignalServiceAttachmentStream stream = attachment.asStream();
2132             return AttachmentUtils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
2133         }
2134     }
2135
2136     private File retrieveGroupAvatar(
2137             GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey
2138     ) throws IOException {
2139         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2140         File outputFile = getGroupAvatarFile(groupId);
2141         GroupsV2Operations.GroupOperations groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2142
2143         File tmpFile = IOUtils.createTempFile();
2144         try (InputStream input = messageReceiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2145                 tmpFile,
2146                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2147             byte[] encryptedData = IOUtils.readFully(input);
2148
2149             byte[] decryptedData = groupOperations.decryptAvatar(encryptedData);
2150             try (OutputStream output = new FileOutputStream(outputFile)) {
2151                 output.write(decryptedData);
2152             }
2153         } finally {
2154             try {
2155                 Files.delete(tmpFile.toPath());
2156             } catch (IOException e) {
2157                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2158                         tmpFile,
2159                         e.getMessage());
2160             }
2161         }
2162         return outputFile;
2163     }
2164
2165     private File getProfileAvatarFile(SignalServiceAddress address) {
2166         return new File(pathConfig.getAvatarsPath(), "profile-" + address.getLegacyIdentifier());
2167     }
2168
2169     private File retrieveProfileAvatar(
2170             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2171     ) throws IOException {
2172         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2173         File outputFile = getProfileAvatarFile(address);
2174
2175         File tmpFile = IOUtils.createTempFile();
2176         try (InputStream input = messageReceiver.retrieveProfileAvatar(avatarPath,
2177                 tmpFile,
2178                 profileKey,
2179                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2180             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2181             IOUtils.copyStreamToFile(input, outputFile, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2182         } finally {
2183             try {
2184                 Files.delete(tmpFile.toPath());
2185             } catch (IOException e) {
2186                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2187                         tmpFile,
2188                         e.getMessage());
2189             }
2190         }
2191         return outputFile;
2192     }
2193
2194     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2195         return new File(pathConfig.getAttachmentsPath(), attachmentId.toString());
2196     }
2197
2198     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException, MissingConfigurationException {
2199         IOUtils.createPrivateDirectories(pathConfig.getAttachmentsPath());
2200         return retrieveAttachment(pointer, getAttachmentFile(pointer.getRemoteId()), true);
2201     }
2202
2203     private File retrieveAttachment(
2204             SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview
2205     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2206         if (storePreview && pointer.getPreview().isPresent()) {
2207             File previewFile = new File(outputFile + ".preview");
2208             try (OutputStream output = new FileOutputStream(previewFile)) {
2209                 byte[] preview = pointer.getPreview().get();
2210                 output.write(preview, 0, preview.length);
2211             } catch (FileNotFoundException e) {
2212                 e.printStackTrace();
2213                 return null;
2214             }
2215         }
2216
2217         File tmpFile = IOUtils.createTempFile();
2218         try (InputStream input = messageReceiver.retrieveAttachment(pointer,
2219                 tmpFile,
2220                 ServiceConfig.MAX_ATTACHMENT_SIZE)) {
2221             IOUtils.copyStreamToFile(input, outputFile);
2222         } finally {
2223             try {
2224                 Files.delete(tmpFile.toPath());
2225             } catch (IOException e) {
2226                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2227                         tmpFile,
2228                         e.getMessage());
2229             }
2230         }
2231         return outputFile;
2232     }
2233
2234     private InputStream retrieveAttachmentAsStream(
2235             SignalServiceAttachmentPointer pointer, File tmpFile
2236     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2237         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2238     }
2239
2240     void sendGroups() throws IOException, UntrustedIdentityException {
2241         File groupsFile = IOUtils.createTempFile();
2242
2243         try {
2244             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2245                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
2246                 for (GroupInfo record : getGroups()) {
2247                     if (record instanceof GroupInfoV1) {
2248                         GroupInfoV1 groupInfo = (GroupInfoV1) record;
2249                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2250                                 Optional.fromNullable(groupInfo.name),
2251                                 new ArrayList<>(groupInfo.getMembers()),
2252                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2253                                 groupInfo.isMember(account.getSelfAddress()),
2254                                 Optional.of(groupInfo.messageExpirationTime),
2255                                 Optional.fromNullable(groupInfo.color),
2256                                 groupInfo.blocked,
2257                                 Optional.fromNullable(groupInfo.inboxPosition),
2258                                 groupInfo.archived));
2259                     }
2260                 }
2261             }
2262
2263             if (groupsFile.exists() && groupsFile.length() > 0) {
2264                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
2265                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2266                             .withStream(groupsFileStream)
2267                             .withContentType("application/octet-stream")
2268                             .withLength(groupsFile.length())
2269                             .build();
2270
2271                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2272                 }
2273             }
2274         } finally {
2275             try {
2276                 Files.delete(groupsFile.toPath());
2277             } catch (IOException e) {
2278                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2279             }
2280         }
2281     }
2282
2283     public void sendContacts() throws IOException, UntrustedIdentityException {
2284         File contactsFile = IOUtils.createTempFile();
2285
2286         try {
2287             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2288                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
2289                 for (ContactInfo record : account.getContactStore().getContacts()) {
2290                     VerifiedMessage verifiedMessage = null;
2291                     IdentityInfo currentIdentity = account.getSignalProtocolStore().getIdentity(record.getAddress());
2292                     if (currentIdentity != null) {
2293                         verifiedMessage = new VerifiedMessage(record.getAddress(),
2294                                 currentIdentity.getIdentityKey(),
2295                                 currentIdentity.getTrustLevel().toVerifiedState(),
2296                                 currentIdentity.getDateAdded().getTime());
2297                     }
2298
2299                     ProfileKey profileKey = account.getProfileStore().getProfileKey(record.getAddress());
2300                     out.write(new DeviceContact(record.getAddress(),
2301                             Optional.fromNullable(record.name),
2302                             createContactAvatarAttachment(record.number),
2303                             Optional.fromNullable(record.color),
2304                             Optional.fromNullable(verifiedMessage),
2305                             Optional.fromNullable(profileKey),
2306                             record.blocked,
2307                             Optional.of(record.messageExpirationTime),
2308                             Optional.fromNullable(record.inboxPosition),
2309                             record.archived));
2310                 }
2311
2312                 if (account.getProfileKey() != null) {
2313                     // Send our own profile key as well
2314                     out.write(new DeviceContact(account.getSelfAddress(),
2315                             Optional.absent(),
2316                             Optional.absent(),
2317                             Optional.absent(),
2318                             Optional.absent(),
2319                             Optional.of(account.getProfileKey()),
2320                             false,
2321                             Optional.absent(),
2322                             Optional.absent(),
2323                             false));
2324                 }
2325             }
2326
2327             if (contactsFile.exists() && contactsFile.length() > 0) {
2328                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
2329                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2330                             .withStream(contactsFileStream)
2331                             .withContentType("application/octet-stream")
2332                             .withLength(contactsFile.length())
2333                             .build();
2334
2335                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2336                 }
2337             }
2338         } finally {
2339             try {
2340                 Files.delete(contactsFile.toPath());
2341             } catch (IOException e) {
2342                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2343             }
2344         }
2345     }
2346
2347     void sendBlockedList() throws IOException, UntrustedIdentityException {
2348         List<SignalServiceAddress> addresses = new ArrayList<>();
2349         for (ContactInfo record : account.getContactStore().getContacts()) {
2350             if (record.blocked) {
2351                 addresses.add(record.getAddress());
2352             }
2353         }
2354         List<byte[]> groupIds = new ArrayList<>();
2355         for (GroupInfo record : getGroups()) {
2356             if (record.isBlocked()) {
2357                 groupIds.add(record.getGroupId().serialize());
2358             }
2359         }
2360         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2361     }
2362
2363     private void sendVerifiedMessage(
2364             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2365     ) throws IOException, UntrustedIdentityException {
2366         VerifiedMessage verifiedMessage = new VerifiedMessage(destination,
2367                 identityKey,
2368                 trustLevel.toVerifiedState(),
2369                 System.currentTimeMillis());
2370         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2371     }
2372
2373     public List<ContactInfo> getContacts() {
2374         return account.getContactStore().getContacts();
2375     }
2376
2377     public ContactInfo getContact(String number) {
2378         return account.getContactStore().getContact(Utils.getSignalServiceAddressFromIdentifier(number));
2379     }
2380
2381     public GroupInfo getGroup(GroupId groupId) {
2382         final GroupInfo group = account.getGroupStore().getGroup(groupId);
2383         if (group instanceof GroupInfoV2 && ((GroupInfoV2) group).getGroup() == null) {
2384             final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(((GroupInfoV2) group).getMasterKey());
2385             ((GroupInfoV2) group).setGroup(groupHelper.getDecryptedGroup(groupSecretParams));
2386             account.getGroupStore().updateGroup(group);
2387         }
2388         return group;
2389     }
2390
2391     public List<IdentityInfo> getIdentities() {
2392         return account.getSignalProtocolStore().getIdentities();
2393     }
2394
2395     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2396         return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));
2397     }
2398
2399     /**
2400      * Trust this the identity with this fingerprint
2401      *
2402      * @param name        username of the identity
2403      * @param fingerprint Fingerprint
2404      */
2405     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2406         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2407         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2408         if (ids == null) {
2409             return false;
2410         }
2411         for (IdentityInfo id : ids) {
2412             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
2413                 continue;
2414             }
2415
2416             account.getSignalProtocolStore()
2417                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2418             try {
2419                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2420             } catch (IOException | UntrustedIdentityException e) {
2421                 e.printStackTrace();
2422             }
2423             account.save();
2424             return true;
2425         }
2426         return false;
2427     }
2428
2429     /**
2430      * Trust this the identity with this safety number
2431      *
2432      * @param name         username of the identity
2433      * @param safetyNumber Safety number
2434      */
2435     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2436         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2437         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2438         if (ids == null) {
2439             return false;
2440         }
2441         for (IdentityInfo id : ids) {
2442             if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {
2443                 continue;
2444             }
2445
2446             account.getSignalProtocolStore()
2447                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2448             try {
2449                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2450             } catch (IOException | UntrustedIdentityException e) {
2451                 e.printStackTrace();
2452             }
2453             account.save();
2454             return true;
2455         }
2456         return false;
2457     }
2458
2459     /**
2460      * Trust all keys of this identity without verification
2461      *
2462      * @param name username of the identity
2463      */
2464     public boolean trustIdentityAllKeys(String name) {
2465         SignalServiceAddress address = resolveSignalServiceAddress(name);
2466         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2467         if (ids == null) {
2468             return false;
2469         }
2470         for (IdentityInfo id : ids) {
2471             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2472                 account.getSignalProtocolStore()
2473                         .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2474                 try {
2475                     sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2476                 } catch (IOException | UntrustedIdentityException e) {
2477                     e.printStackTrace();
2478                 }
2479             }
2480         }
2481         account.save();
2482         return true;
2483     }
2484
2485     public String computeSafetyNumber(
2486             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2487     ) {
2488         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2489                 account.getSelfAddress(),
2490                 getIdentityKeyPair().getPublicKey(),
2491                 theirAddress,
2492                 theirIdentityKey);
2493     }
2494
2495     void saveAccount() {
2496         account.save();
2497     }
2498
2499     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2500         String canonicalizedNumber = UuidUtil.isUuid(identifier)
2501                 ? identifier
2502                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2503         return resolveSignalServiceAddress(canonicalizedNumber);
2504     }
2505
2506     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2507         SignalServiceAddress address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2508
2509         return resolveSignalServiceAddress(address);
2510     }
2511
2512     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2513         if (address.matches(account.getSelfAddress())) {
2514             return account.getSelfAddress();
2515         }
2516
2517         return account.getRecipientStore().resolveServiceAddress(address);
2518     }
2519
2520     @Override
2521     public void close() throws IOException {
2522         close(true);
2523     }
2524
2525     void close(boolean closeAccount) throws IOException {
2526         if (messagePipe != null) {
2527             messagePipe.shutdown();
2528             messagePipe = null;
2529         }
2530
2531         if (unidentifiedMessagePipe != null) {
2532             unidentifiedMessagePipe.shutdown();
2533             unidentifiedMessagePipe = null;
2534         }
2535
2536         if (closeAccount && account != null) {
2537             account.close();
2538         }
2539         account = null;
2540     }
2541
2542     public interface ReceiveMessageHandler {
2543
2544         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2545     }
2546 }