nmode's Git Repositories - signal-cli/blob - src/main/java/org/asamk/signal/manager/Manager.java

   1 /*
   2   Copyright (C) 2015-2020 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.ProfileHelper;
  30 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  31 import org.asamk.signal.manager.storage.SignalAccount;
  32 import org.asamk.signal.manager.storage.contacts.ContactInfo;
  33 import org.asamk.signal.manager.storage.groups.GroupInfo;
  34 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  35 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  36 import org.asamk.signal.manager.storage.profiles.SignalProfile;
  37 import org.asamk.signal.manager.storage.profiles.SignalProfileEntry;
  38 import org.asamk.signal.manager.storage.protocol.IdentityInfo;
  39 import org.asamk.signal.manager.storage.stickers.Sticker;
  40 import org.asamk.signal.manager.util.AttachmentUtils;
  41 import org.asamk.signal.manager.util.IOUtils;
  42 import org.asamk.signal.manager.util.KeyUtils;
  43 import org.asamk.signal.manager.util.MessageCacheUtils;
  44 import org.asamk.signal.manager.util.Utils;
  45 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  46 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  47 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  48 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  49 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  50 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  51 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  52 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  53 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  54 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  55 import org.signal.libsignal.metadata.SelfSendException;
  56 import org.signal.libsignal.metadata.certificate.CertificateValidator;
  57 import org.signal.storageservice.protos.groups.GroupChange;
  58 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  59 import org.signal.storageservice.protos.groups.local.DecryptedGroupJoinInfo;
  60 import org.signal.storageservice.protos.groups.local.DecryptedMember;
  61 import org.signal.zkgroup.InvalidInputException;
  62 import org.signal.zkgroup.VerificationFailedException;
  63 import org.signal.zkgroup.auth.AuthCredentialResponse;
  64 import org.signal.zkgroup.groups.GroupMasterKey;
  65 import org.signal.zkgroup.groups.GroupSecretParams;
  66 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  67 import org.signal.zkgroup.profiles.ProfileKey;
  68 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  69 import org.slf4j.Logger;
  70 import org.slf4j.LoggerFactory;
  71 import org.whispersystems.libsignal.IdentityKey;
  72 import org.whispersystems.libsignal.IdentityKeyPair;
  73 import org.whispersystems.libsignal.InvalidKeyException;
  74 import org.whispersystems.libsignal.InvalidMessageException;
  75 import org.whispersystems.libsignal.InvalidVersionException;
  76 import org.whispersystems.libsignal.ecc.Curve;
  77 import org.whispersystems.libsignal.ecc.ECKeyPair;
  78 import org.whispersystems.libsignal.ecc.ECPublicKey;
  79 import org.whispersystems.libsignal.state.PreKeyRecord;
  80 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  81 import org.whispersystems.libsignal.util.KeyHelper;
  82 import org.whispersystems.libsignal.util.Medium;
  83 import org.whispersystems.libsignal.util.Pair;
  84 import org.whispersystems.libsignal.util.guava.Optional;
  85 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  86 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  87 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  88 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  89 import org.whispersystems.signalservice.api.crypto.InvalidCiphertextException;
  90 import org.whispersystems.signalservice.api.crypto.ProfileCipher;
  91 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  92 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
  93 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  94 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  95 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  96 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
  97 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  98 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  99 import org.whispersystems.signalservice.api.messages.SendMessageResult;
 100 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
 101 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
 104 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 105 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 106 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 107 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 108 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 109 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 110 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload;
 111 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload.StickerInfo;
 112 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 113 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 114 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 115 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 116 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 117 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 118 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 119 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 120 import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
 121 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 122 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 123 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 124 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 125 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 126 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 127 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 128 import org.whispersystems.signalservice.api.push.ContactTokenDetails;
 129 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 130 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 131 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 132 import org.whispersystems.signalservice.api.util.PhoneNumberFormatter;
 133 import org.whispersystems.signalservice.api.util.SleepTimer;
 134 import org.whispersystems.signalservice.api.util.StreamDetails;
 135 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 136 import org.whispersystems.signalservice.api.util.UuidUtil;
 137 import org.whispersystems.signalservice.internal.configuration.SignalServiceConfiguration;
 138 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 139 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 140 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 141 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 142 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 143 import org.whispersystems.signalservice.internal.push.VerifyAccountResponse;
 144 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 145 import org.whispersystems.signalservice.internal.util.Hex;
 146 import org.whispersystems.util.Base64;
 147
 148 import java.io.Closeable;
 149 import java.io.File;
 150 import java.io.FileInputStream;
 151 import java.io.FileNotFoundException;
 152 import java.io.FileOutputStream;
 153 import java.io.IOException;
 154 import java.io.InputStream;
 155 import java.io.OutputStream;
 156 import java.net.URI;
 157 import java.net.URISyntaxException;
 158 import java.net.URLEncoder;
 159 import java.nio.charset.StandardCharsets;
 160 import java.nio.file.Files;
 161 import java.nio.file.Paths;
 162 import java.nio.file.StandardCopyOption;
 163 import java.security.SignatureException;
 164 import java.util.ArrayList;
 165 import java.util.Arrays;
 166 import java.util.Collection;
 167 import java.util.Date;
 168 import java.util.HashMap;
 169 import java.util.HashSet;
 170 import java.util.List;
 171 import java.util.Locale;
 172 import java.util.Map;
 173 import java.util.Objects;
 174 import java.util.Set;
 175 import java.util.UUID;
 176 import java.util.concurrent.ExecutorService;
 177 import java.util.concurrent.TimeUnit;
 178 import java.util.concurrent.TimeoutException;
 179 import java.util.stream.Collectors;
 180 import java.util.zip.ZipEntry;
 181 import java.util.zip.ZipFile;
 182
 183 import static org.asamk.signal.manager.ServiceConfig.CDS_MRENCLAVE;
 184 import static org.asamk.signal.manager.ServiceConfig.capabilities;
 185 import static org.asamk.signal.manager.ServiceConfig.getIasKeyStore;
 186
 187 public class Manager implements Closeable {
 188
 189     final static Logger logger = LoggerFactory.getLogger(Manager.class);
 190
 191     private final SleepTimer timer = new UptimeSleepTimer();
 192     private final CertificateValidator certificateValidator = new CertificateValidator(ServiceConfig.getUnidentifiedSenderTrustRoot());
 193
 194     private final SignalServiceConfiguration serviceConfiguration;
 195     private final String userAgent;
 196     private final boolean discoverableByPhoneNumber = true;
 197     private final boolean unrestrictedUnidentifiedAccess = false;
 198
 199     private final SignalAccount account;
 200     private final PathConfig pathConfig;
 201     private SignalServiceAccountManager accountManager;
 202     private GroupsV2Api groupsV2Api;
 203     private final GroupsV2Operations groupsV2Operations;
 204
 205     private SignalServiceMessageReceiver messageReceiver = null;
 206     private SignalServiceMessagePipe messagePipe = null;
 207     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 208
 209     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 210     private final ProfileHelper profileHelper;
 211     private final GroupHelper groupHelper;
 212
 213     Manager(
 214             SignalAccount account,
 215             PathConfig pathConfig,
 216             SignalServiceConfiguration serviceConfiguration,
 217             String userAgent
 218     ) {
 219         this.account = account;
 220         this.pathConfig = pathConfig;
 221         this.serviceConfiguration = serviceConfiguration;
 222         this.userAgent = userAgent;
 223         this.groupsV2Operations = capabilities.isGv2() ? new GroupsV2Operations(ClientZkOperations.create(
 224                 serviceConfiguration)) : null;
 225         this.accountManager = createSignalServiceAccountManager();
 226         this.groupsV2Api = accountManager.getGroupsV2Api();
 227
 228         this.account.setResolver(this::resolveSignalServiceAddress);
 229
 230         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 231                 account.getProfileStore()::getProfileKey,
 232                 this::getRecipientProfile,
 233                 this::getSenderCertificate);
 234         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 235                 unidentifiedAccessHelper::getAccessFor,
 236                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 237                 this::getOrCreateMessageReceiver);
 238         this.groupHelper = new GroupHelper(this::getRecipientProfileKeyCredential,
 239                 this::getRecipientProfile,
 240                 account::getSelfAddress,
 241                 groupsV2Operations,
 242                 groupsV2Api,
 243                 this::getGroupAuthForToday);
 244     }
 245
 246     public String getUsername() {
 247         return account.getUsername();
 248     }
 249
 250     public SignalServiceAddress getSelfAddress() {
 251         return account.getSelfAddress();
 252     }
 253
 254     private SignalServiceAccountManager createSignalServiceAccountManager() {
 255         return new SignalServiceAccountManager(serviceConfiguration,
 256                 new DynamicCredentialsProvider(account.getUuid(),
 257                         account.getUsername(),
 258                         account.getPassword(),
 259                         null,
 260                         account.getDeviceId()),
 261                 userAgent,
 262                 groupsV2Operations,
 263                 timer);
 264     }
 265
 266     private IdentityKeyPair getIdentityKeyPair() {
 267         return account.getSignalProtocolStore().getIdentityKeyPair();
 268     }
 269
 270     public int getDeviceId() {
 271         return account.getDeviceId();
 272     }
 273
 274     private File getMessageCachePath() {
 275         return SignalAccount.getMessageCachePath(pathConfig.getDataPath(), account.getUsername());
 276     }
 277
 278     private File getMessageCachePath(String sender) {
 279         if (sender == null || sender.isEmpty()) {
 280             return getMessageCachePath();
 281         }
 282
 283         return new File(getMessageCachePath(), sender.replace("/", "_"));
 284     }
 285
 286     private File getMessageCacheFile(String sender, long now, long timestamp) throws IOException {
 287         File cachePath = getMessageCachePath(sender);
 288         IOUtils.createPrivateDirectories(cachePath);
 289         return new File(cachePath, now + "_" + timestamp);
 290     }
 291
 292     public static Manager init(
 293             String username, File settingsPath, SignalServiceConfiguration serviceConfiguration, String userAgent
 294     ) throws IOException {
 295         PathConfig pathConfig = PathConfig.createDefault(settingsPath);
 296
 297         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 298             IdentityKeyPair identityKey = KeyHelper.generateIdentityKeyPair();
 299             int registrationId = KeyHelper.generateRegistrationId(false);
 300
 301             ProfileKey profileKey = KeyUtils.createProfileKey();
 302             SignalAccount account = SignalAccount.create(pathConfig.getDataPath(),
 303                     username,
 304                     identityKey,
 305                     registrationId,
 306                     profileKey);
 307             account.save();
 308
 309             return new Manager(account, pathConfig, serviceConfiguration, userAgent);
 310         }
 311
 312         SignalAccount account = SignalAccount.load(pathConfig.getDataPath(), username);
 313
 314         Manager m = new Manager(account, pathConfig, serviceConfiguration, userAgent);
 315
 316         m.migrateLegacyConfigs();
 317
 318         return m;
 319     }
 320
 321     private void migrateLegacyConfigs() {
 322         if (account.getProfileKey() == null && isRegistered()) {
 323             // Old config file, creating new profile key
 324             account.setProfileKey(KeyUtils.createProfileKey());
 325             account.save();
 326         }
 327         // Store profile keys only in profile store
 328         for (ContactInfo contact : account.getContactStore().getContacts()) {
 329             String profileKeyString = contact.profileKey;
 330             if (profileKeyString == null) {
 331                 continue;
 332             }
 333             final ProfileKey profileKey;
 334             try {
 335                 profileKey = new ProfileKey(Base64.decode(profileKeyString));
 336             } catch (InvalidInputException | IOException e) {
 337                 continue;
 338             }
 339             contact.profileKey = null;
 340             account.getProfileStore().storeProfileKey(contact.getAddress(), profileKey);
 341         }
 342         // Ensure our profile key is stored in profile store
 343         account.getProfileStore().storeProfileKey(getSelfAddress(), account.getProfileKey());
 344     }
 345
 346     public void checkAccountState() throws IOException {
 347         if (account.isRegistered()) {
 348             if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 349                 refreshPreKeys();
 350                 account.save();
 351             }
 352             if (account.getUuid() == null) {
 353                 account.setUuid(accountManager.getOwnUuid());
 354                 account.save();
 355             }
 356             updateAccountAttributes();
 357         }
 358     }
 359
 360     public boolean isRegistered() {
 361         return account.isRegistered();
 362     }
 363
 364     public void register(boolean voiceVerification, String captcha) throws IOException {
 365         account.setPassword(KeyUtils.createPassword());
 366
 367         // Resetting UUID, because registering doesn't work otherwise
 368         account.setUuid(null);
 369         accountManager = createSignalServiceAccountManager();
 370         this.groupsV2Api = accountManager.getGroupsV2Api();
 371
 372         if (voiceVerification) {
 373             accountManager.requestVoiceVerificationCode(Locale.getDefault(),
 374                     Optional.fromNullable(captcha),
 375                     Optional.absent());
 376         } else {
 377             accountManager.requestSmsVerificationCode(false, Optional.fromNullable(captcha), Optional.absent());
 378         }
 379
 380         account.setRegistered(false);
 381         account.save();
 382     }
 383
 384     public void updateAccountAttributes() throws IOException {
 385         accountManager.setAccountAttributes(account.getSignalingKey(),
 386                 account.getSignalProtocolStore().getLocalRegistrationId(),
 387                 true,
 388                 account.getRegistrationLockPin(),
 389                 account.getRegistrationLock(),
 390                 unidentifiedAccessHelper.getSelfUnidentifiedAccessKey(),
 391                 unrestrictedUnidentifiedAccess,
 392                 capabilities,
 393                 discoverableByPhoneNumber);
 394     }
 395
 396     public void setProfile(String name, File avatar) throws IOException {
 397         try (final StreamDetails streamDetails = avatar == null ? null : Utils.createStreamDetailsFromFile(avatar)) {
 398             accountManager.setVersionedProfile(account.getUuid(), account.getProfileKey(), name, streamDetails);
 399         }
 400     }
 401
 402     public void unregister() throws IOException {
 403         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 404         // If this is the master device, other users can't send messages to this number anymore.
 405         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 406         accountManager.setGcmId(Optional.absent());
 407
 408         account.setRegistered(false);
 409         account.save();
 410     }
 411
 412     public List<DeviceInfo> getLinkedDevices() throws IOException {
 413         List<DeviceInfo> devices = accountManager.getDevices();
 414         account.setMultiDevice(devices.size() > 1);
 415         account.save();
 416         return devices;
 417     }
 418
 419     public void removeLinkedDevices(int deviceId) throws IOException {
 420         accountManager.removeDevice(deviceId);
 421         List<DeviceInfo> devices = accountManager.getDevices();
 422         account.setMultiDevice(devices.size() > 1);
 423         account.save();
 424     }
 425
 426     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 427         DeviceLinkInfo info = DeviceLinkInfo.parseDeviceLinkUri(linkUri);
 428
 429         addDevice(info.deviceIdentifier, info.deviceKey);
 430     }
 431
 432     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 433         IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 434         String verificationCode = accountManager.getNewDeviceVerificationCode();
 435
 436         accountManager.addDevice(deviceIdentifier,
 437                 deviceKey,
 438                 identityKeyPair,
 439                 Optional.of(account.getProfileKey().serialize()),
 440                 verificationCode);
 441         account.setMultiDevice(true);
 442         account.save();
 443     }
 444
 445     private List<PreKeyRecord> generatePreKeys() {
 446         List<PreKeyRecord> records = new ArrayList<>(ServiceConfig.PREKEY_BATCH_SIZE);
 447
 448         final int offset = account.getPreKeyIdOffset();
 449         for (int i = 0; i < ServiceConfig.PREKEY_BATCH_SIZE; i++) {
 450             int preKeyId = (offset + i) % Medium.MAX_VALUE;
 451             ECKeyPair keyPair = Curve.generateKeyPair();
 452             PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);
 453
 454             records.add(record);
 455         }
 456
 457         account.addPreKeys(records);
 458         account.save();
 459
 460         return records;
 461     }
 462
 463     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 464         try {
 465             ECKeyPair keyPair = Curve.generateKeyPair();
 466             byte[] signature = Curve.calculateSignature(identityKeyPair.getPrivateKey(),
 467                     keyPair.getPublicKey().serialize());
 468             SignedPreKeyRecord record = new SignedPreKeyRecord(account.getNextSignedPreKeyId(),
 469                     System.currentTimeMillis(),
 470                     keyPair,
 471                     signature);
 472
 473             account.addSignedPreKey(record);
 474             account.save();
 475
 476             return record;
 477         } catch (InvalidKeyException e) {
 478             throw new AssertionError(e);
 479         }
 480     }
 481
 482     public void verifyAccount(String verificationCode, String pin) throws IOException {
 483         verificationCode = verificationCode.replace("-", "");
 484         account.setSignalingKey(KeyUtils.createSignalingKey());
 485         // TODO make unrestricted unidentified access configurable
 486         VerifyAccountResponse response = accountManager.verifyAccountWithCode(verificationCode,
 487                 account.getSignalingKey(),
 488                 account.getSignalProtocolStore().getLocalRegistrationId(),
 489                 true,
 490                 pin,
 491                 null,
 492                 unidentifiedAccessHelper.getSelfUnidentifiedAccessKey(),
 493                 unrestrictedUnidentifiedAccess,
 494                 capabilities,
 495                 discoverableByPhoneNumber);
 496
 497         UUID uuid = UuidUtil.parseOrNull(response.getUuid());
 498         // TODO response.isStorageCapable()
 499         //accountManager.setGcmId(Optional.of(GoogleCloudMessaging.getInstance(this).register(REGISTRATION_ID)));
 500         account.setRegistered(true);
 501         account.setUuid(uuid);
 502         account.setRegistrationLockPin(pin);
 503         account.getSignalProtocolStore()
 504                 .saveIdentity(account.getSelfAddress(),
 505                         getIdentityKeyPair().getPublicKey(),
 506                         TrustLevel.TRUSTED_VERIFIED);
 507
 508         refreshPreKeys();
 509         account.save();
 510     }
 511
 512     public void setRegistrationLockPin(Optional<String> pin) throws IOException {
 513         if (pin.isPresent()) {
 514             account.setRegistrationLockPin(pin.get());
 515             throw new RuntimeException("Not implemented anymore, will be replaced with KBS");
 516         } else {
 517             account.setRegistrationLockPin(null);
 518             accountManager.removeRegistrationLockV1();
 519         }
 520         account.save();
 521     }
 522
 523     void refreshPreKeys() throws IOException {
 524         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 525         final IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 526         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 527
 528         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 529     }
 530
 531     private SignalServiceMessageReceiver createMessageReceiver() {
 532         final ClientZkProfileOperations clientZkProfileOperations = capabilities.isGv2() ? ClientZkOperations.create(
 533                 serviceConfiguration).getProfileOperations() : null;
 534         return new SignalServiceMessageReceiver(serviceConfiguration,
 535                 account.getUuid(),
 536                 account.getUsername(),
 537                 account.getPassword(),
 538                 account.getDeviceId(),
 539                 account.getSignalingKey(),
 540                 userAgent,
 541                 null,
 542                 timer,
 543                 clientZkProfileOperations);
 544     }
 545
 546     private SignalServiceMessageReceiver getOrCreateMessageReceiver() {
 547         if (messageReceiver == null) {
 548             messageReceiver = createMessageReceiver();
 549         }
 550         return messageReceiver;
 551     }
 552
 553     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 554         if (messagePipe == null) {
 555             messagePipe = getOrCreateMessageReceiver().createMessagePipe();
 556         }
 557         return messagePipe;
 558     }
 559
 560     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 561         if (unidentifiedMessagePipe == null) {
 562             unidentifiedMessagePipe = getOrCreateMessageReceiver().createUnidentifiedMessagePipe();
 563         }
 564         return unidentifiedMessagePipe;
 565     }
 566
 567     private SignalServiceMessageSender createMessageSender() {
 568         final ClientZkProfileOperations clientZkProfileOperations = capabilities.isGv2() ? ClientZkOperations.create(
 569                 serviceConfiguration).getProfileOperations() : null;
 570         final ExecutorService executor = null;
 571         return new SignalServiceMessageSender(serviceConfiguration,
 572                 account.getUuid(),
 573                 account.getUsername(),
 574                 account.getPassword(),
 575                 account.getDeviceId(),
 576                 account.getSignalProtocolStore(),
 577                 userAgent,
 578                 account.isMultiDevice(),
 579                 Optional.fromNullable(messagePipe),
 580                 Optional.fromNullable(unidentifiedMessagePipe),
 581                 Optional.absent(),
 582                 clientZkProfileOperations,
 583                 executor,
 584                 ServiceConfig.MAX_ENVELOPE_SIZE);
 585     }
 586
 587     private SignalServiceProfile getEncryptedRecipientProfile(SignalServiceAddress address) throws IOException {
 588         return profileHelper.retrieveProfileSync(address, SignalServiceProfile.RequestType.PROFILE).getProfile();
 589     }
 590
 591     private SignalProfile getRecipientProfile(
 592             SignalServiceAddress address
 593     ) {
 594         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
 595         if (profileEntry == null) {
 596             return null;
 597         }
 598         long now = new Date().getTime();
 599         // Profiles are cache for 24h before retrieving them again
 600         if (!profileEntry.isRequestPending() && (
 601                 profileEntry.getProfile() == null || now - profileEntry.getLastUpdateTimestamp() > 24 * 60 * 60 * 1000
 602         )) {
 603             ProfileKey profileKey = profileEntry.getProfileKey();
 604             profileEntry.setRequestPending(true);
 605             SignalProfile profile;
 606             try {
 607                 profile = retrieveRecipientProfile(address, profileKey);
 608             } catch (IOException e) {
 609                 logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 610                 profileEntry.setRequestPending(false);
 611                 return null;
 612             }
 613             profileEntry.setRequestPending(false);
 614             account.getProfileStore()
 615                     .updateProfile(address, profileKey, now, profile, profileEntry.getProfileKeyCredential());
 616             return profile;
 617         }
 618         return profileEntry.getProfile();
 619     }
 620
 621     private ProfileKeyCredential getRecipientProfileKeyCredential(SignalServiceAddress address) {
 622         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
 623         if (profileEntry == null) {
 624             return null;
 625         }
 626         if (profileEntry.getProfileKeyCredential() == null) {
 627             ProfileAndCredential profileAndCredential;
 628             try {
 629                 profileAndCredential = profileHelper.retrieveProfileSync(address,
 630                         SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 631             } catch (IOException e) {
 632                 logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 633                 return null;
 634             }
 635
 636             long now = new Date().getTime();
 637             final ProfileKeyCredential profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 638             final SignalProfile profile = decryptProfile(address,
 639                     profileEntry.getProfileKey(),
 640                     profileAndCredential.getProfile());
 641             account.getProfileStore()
 642                     .updateProfile(address, profileEntry.getProfileKey(), now, profile, profileKeyCredential);
 643             return profileKeyCredential;
 644         }
 645         return profileEntry.getProfileKeyCredential();
 646     }
 647
 648     private SignalProfile retrieveRecipientProfile(
 649             SignalServiceAddress address, ProfileKey profileKey
 650     ) throws IOException {
 651         final SignalServiceProfile encryptedProfile = getEncryptedRecipientProfile(address);
 652
 653         return decryptProfile(address, profileKey, encryptedProfile);
 654     }
 655
 656     private SignalProfile decryptProfile(
 657             final SignalServiceAddress address, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 658     ) {
 659         File avatarFile = null;
 660         try {
 661             avatarFile = encryptedProfile.getAvatar() == null
 662                     ? null
 663                     : retrieveProfileAvatar(address, encryptedProfile.getAvatar(), profileKey);
 664         } catch (Throwable e) {
 665             logger.warn("Failed to retrieve profile avatar, ignoring: {}", e.getMessage());
 666         }
 667
 668         ProfileCipher profileCipher = new ProfileCipher(profileKey);
 669         try {
 670             String name;
 671             try {
 672                 name = encryptedProfile.getName() == null
 673                         ? null
 674                         : new String(profileCipher.decryptName(Base64.decode(encryptedProfile.getName())));
 675             } catch (IOException e) {
 676                 name = null;
 677             }
 678             String unidentifiedAccess;
 679             try {
 680                 unidentifiedAccess = encryptedProfile.getUnidentifiedAccess() == null
 681                         || !profileCipher.verifyUnidentifiedAccess(Base64.decode(encryptedProfile.getUnidentifiedAccess()))
 682                         ? null
 683                         : encryptedProfile.getUnidentifiedAccess();
 684             } catch (IOException e) {
 685                 unidentifiedAccess = null;
 686             }
 687             return new SignalProfile(encryptedProfile.getIdentityKey(),
 688                     name,
 689                     avatarFile,
 690                     unidentifiedAccess,
 691                     encryptedProfile.isUnrestrictedUnidentifiedAccess(),
 692                     encryptedProfile.getCapabilities());
 693         } catch (InvalidCiphertextException e) {
 694             return null;
 695         }
 696     }
 697
 698     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 699         File file = getGroupAvatarFile(groupId);
 700         if (!file.exists()) {
 701             return Optional.absent();
 702         }
 703
 704         return Optional.of(AttachmentUtils.createAttachment(file));
 705     }
 706
 707     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(String number) throws IOException {
 708         File file = getContactAvatarFile(number);
 709         if (!file.exists()) {
 710             return Optional.absent();
 711         }
 712
 713         return Optional.of(AttachmentUtils.createAttachment(file));
 714     }
 715
 716     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 717         GroupInfo g = account.getGroupStore().getGroup(groupId);
 718         if (g == null) {
 719             throw new GroupNotFoundException(groupId);
 720         }
 721         if (!g.isMember(account.getSelfAddress())) {
 722             throw new NotAGroupMemberException(groupId, g.getTitle());
 723         }
 724         return g;
 725     }
 726
 727     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 728         GroupInfo g = account.getGroupStore().getGroup(groupId);
 729         if (g == null) {
 730             throw new GroupNotFoundException(groupId);
 731         }
 732         if (!g.isMember(account.getSelfAddress()) && !g.isPendingMember(account.getSelfAddress())) {
 733             throw new NotAGroupMemberException(groupId, g.getTitle());
 734         }
 735         return g;
 736     }
 737
 738     public List<GroupInfo> getGroups() {
 739         return account.getGroupStore().getGroups();
 740     }
 741
 742     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 743             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 744     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 745         final GroupInfo g = getGroupForSending(groupId);
 746
 747         GroupUtils.setGroupContext(messageBuilder, g);
 748         messageBuilder.withExpiration(g.getMessageExpirationTime());
 749
 750         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 751     }
 752
 753     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 754             String messageText, List<String> attachments, GroupId groupId
 755     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 756         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 757                 .withBody(messageText);
 758         if (attachments != null) {
 759             messageBuilder.withAttachments(AttachmentUtils.getSignalServiceAttachments(attachments));
 760         }
 761
 762         return sendGroupMessage(messageBuilder, groupId);
 763     }
 764
 765     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 766             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 767     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 768         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
 769                 remove,
 770                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
 771                 targetSentTimestamp);
 772         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 773                 .withReaction(reaction);
 774
 775         return sendGroupMessage(messageBuilder, groupId);
 776     }
 777
 778     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(GroupId groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 779
 780         SignalServiceDataMessage.Builder messageBuilder;
 781
 782         final GroupInfo g = getGroupForUpdating(groupId);
 783         if (g instanceof GroupInfoV1) {
 784             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
 785             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 786                     .withId(groupId.serialize())
 787                     .build();
 788             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 789             groupInfoV1.removeMember(account.getSelfAddress());
 790             account.getGroupStore().updateGroup(groupInfoV1);
 791         } else {
 792             final GroupInfoV2 groupInfoV2 = (GroupInfoV2) g;
 793             final Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.leaveGroup(groupInfoV2);
 794             groupInfoV2.setGroup(groupGroupChangePair.first());
 795             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 796             account.getGroupStore().updateGroup(groupInfoV2);
 797         }
 798
 799         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 800     }
 801
 802     private Pair<GroupId, List<SendMessageResult>> sendUpdateGroupMessage(
 803             GroupId groupId, String name, Collection<SignalServiceAddress> members, String avatarFile
 804     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 805         GroupInfo g;
 806         SignalServiceDataMessage.Builder messageBuilder;
 807         if (groupId == null) {
 808             // Create new group
 809             GroupInfoV2 gv2 = groupHelper.createGroupV2(name, members, avatarFile);
 810             if (gv2 == null) {
 811                 GroupInfoV1 gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 812                 gv1.addMembers(List.of(account.getSelfAddress()));
 813                 updateGroupV1(gv1, name, members, avatarFile);
 814                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 815                 g = gv1;
 816             } else {
 817                 messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 818                 g = gv2;
 819             }
 820         } else {
 821             GroupInfo group = getGroupForUpdating(groupId);
 822             if (group instanceof GroupInfoV2) {
 823                 final GroupInfoV2 groupInfoV2 = (GroupInfoV2) group;
 824
 825                 Pair<Long, List<SendMessageResult>> result = null;
 826                 if (groupInfoV2.isPendingMember(getSelfAddress())) {
 827                     Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.acceptInvite(groupInfoV2);
 828                     result = sendUpdateGroupMessage(groupInfoV2,
 829                             groupGroupChangePair.first(),
 830                             groupGroupChangePair.second());
 831                 }
 832
 833                 if (members != null) {
 834                     final Set<SignalServiceAddress> newMembers = new HashSet<>(members);
 835                     newMembers.removeAll(group.getMembers()
 836                             .stream()
 837                             .map(this::resolveSignalServiceAddress)
 838                             .collect(Collectors.toSet()));
 839                     if (newMembers.size() > 0) {
 840                         Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2,
 841                                 newMembers);
 842                         result = sendUpdateGroupMessage(groupInfoV2,
 843                                 groupGroupChangePair.first(),
 844                                 groupGroupChangePair.second());
 845                     }
 846                 }
 847                 if (result == null || name != null || avatarFile != null) {
 848                     Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2,
 849                             name,
 850                             avatarFile);
 851                     result = sendUpdateGroupMessage(groupInfoV2,
 852                             groupGroupChangePair.first(),
 853                             groupGroupChangePair.second());
 854                 }
 855
 856                 return new Pair<>(group.getGroupId(), result.second());
 857             } else {
 858                 GroupInfoV1 gv1 = (GroupInfoV1) group;
 859                 updateGroupV1(gv1, name, members, avatarFile);
 860                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 861                 g = gv1;
 862             }
 863         }
 864
 865         account.getGroupStore().updateGroup(g);
 866
 867         final Pair<Long, List<SendMessageResult>> result = sendMessage(messageBuilder,
 868                 g.getMembersIncludingPendingWithout(account.getSelfAddress()));
 869         return new Pair<>(g.getGroupId(), result.second());
 870     }
 871
 872     public Pair<GroupId, List<SendMessageResult>> joinGroup(
 873             GroupInviteLinkUrl inviteLinkUrl
 874     ) throws IOException, GroupLinkNotActiveException {
 875         return sendJoinGroupMessage(inviteLinkUrl);
 876     }
 877
 878     private Pair<GroupId, List<SendMessageResult>> sendJoinGroupMessage(
 879             GroupInviteLinkUrl inviteLinkUrl
 880     ) throws IOException, GroupLinkNotActiveException {
 881         final DecryptedGroupJoinInfo groupJoinInfo = groupHelper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
 882                 inviteLinkUrl.getPassword());
 883         final GroupChange groupChange = groupHelper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
 884                 inviteLinkUrl.getPassword(),
 885                 groupJoinInfo);
 886         final GroupInfoV2 group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
 887                 groupJoinInfo.getRevision() + 1,
 888                 groupChange.toByteArray());
 889
 890         if (group.getGroup() == null) {
 891             // Only requested member, can't send update to group members
 892             return new Pair<>(group.getGroupId(), List.of());
 893         }
 894
 895         final Pair<Long, List<SendMessageResult>> result = sendUpdateGroupMessage(group, group.getGroup(), groupChange);
 896
 897         return new Pair<>(group.getGroupId(), result.second());
 898     }
 899
 900     private Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 901             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
 902     ) throws IOException {
 903         group.setGroup(newDecryptedGroup);
 904         final SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(group,
 905                 groupChange.toByteArray());
 906         account.getGroupStore().updateGroup(group);
 907         return sendMessage(messageBuilder, group.getMembersIncludingPendingWithout(account.getSelfAddress()));
 908     }
 909
 910     private void updateGroupV1(
 911             final GroupInfoV1 g,
 912             final String name,
 913             final Collection<SignalServiceAddress> members,
 914             final String avatarFile
 915     ) throws IOException {
 916         if (name != null) {
 917             g.name = name;
 918         }
 919
 920         if (members != null) {
 921             final Set<String> newE164Members = new HashSet<>();
 922             for (SignalServiceAddress member : members) {
 923                 if (g.isMember(member) || !member.getNumber().isPresent()) {
 924                     continue;
 925                 }
 926                 newE164Members.add(member.getNumber().get());
 927             }
 928
 929             final List<ContactTokenDetails> contacts = accountManager.getContacts(newE164Members);
 930             if (contacts.size() != newE164Members.size()) {
 931                 // Some of the new members are not registered on Signal
 932                 for (ContactTokenDetails contact : contacts) {
 933                     newE164Members.remove(contact.getNumber());
 934                 }
 935                 throw new IOException("Failed to add members "
 936                         + String.join(", ", newE164Members)
 937                         + " to group: Not registered on Signal");
 938             }
 939
 940             g.addMembers(members);
 941         }
 942
 943         if (avatarFile != null) {
 944             IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
 945             File aFile = getGroupAvatarFile(g.getGroupId());
 946             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 947         }
 948     }
 949
 950     Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 951             GroupIdV1 groupId, SignalServiceAddress recipient
 952     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 953         GroupInfoV1 g;
 954         GroupInfo group = getGroupForSending(groupId);
 955         if (!(group instanceof GroupInfoV1)) {
 956             throw new RuntimeException("Received an invalid group request for a v2 group!");
 957         }
 958         g = (GroupInfoV1) group;
 959
 960         if (!g.isMember(recipient)) {
 961             throw new NotAGroupMemberException(groupId, g.name);
 962         }
 963
 964         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 965
 966         // Send group message only to the recipient who requested it
 967         return sendMessage(messageBuilder, List.of(recipient));
 968     }
 969
 970     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 971         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 972                 .withId(g.getGroupId().serialize())
 973                 .withName(g.name)
 974                 .withMembers(new ArrayList<>(g.getMembers()));
 975
 976         File aFile = getGroupAvatarFile(g.getGroupId());
 977         if (aFile.exists()) {
 978             try {
 979                 group.withAvatar(AttachmentUtils.createAttachment(aFile));
 980             } catch (IOException e) {
 981                 throw new AttachmentInvalidException(aFile.toString(), e);
 982             }
 983         }
 984
 985         return SignalServiceDataMessage.newBuilder()
 986                 .asGroupMessage(group.build())
 987                 .withExpiration(g.getMessageExpirationTime());
 988     }
 989
 990     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
 991         SignalServiceGroupV2.Builder group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
 992                 .withRevision(g.getGroup().getRevision())
 993                 .withSignedGroupChange(signedGroupChange);
 994         return SignalServiceDataMessage.newBuilder()
 995                 .asGroupMessage(group.build())
 996                 .withExpiration(g.getMessageExpirationTime());
 997     }
 998
 999     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
1000             GroupIdV1 groupId, SignalServiceAddress recipient
1001     ) throws IOException {
1002         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
1003                 .withId(groupId.serialize());
1004
1005         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1006                 .asGroupMessage(group.build());
1007
1008         // Send group info request message to the recipient who sent us a message with this groupId
1009         return sendMessage(messageBuilder, List.of(recipient));
1010     }
1011
1012     void sendReceipt(
1013             SignalServiceAddress remoteAddress, long messageId
1014     ) throws IOException, UntrustedIdentityException {
1015         SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1016                 List.of(messageId),
1017                 System.currentTimeMillis());
1018
1019         createMessageSender().sendReceipt(remoteAddress,
1020                 unidentifiedAccessHelper.getAccessFor(remoteAddress),
1021                 receiptMessage);
1022     }
1023
1024     public Pair<Long, List<SendMessageResult>> sendMessage(
1025             String messageText, List<String> attachments, List<String> recipients
1026     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1027         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1028                 .withBody(messageText);
1029         if (attachments != null) {
1030             List<SignalServiceAttachment> attachmentStreams = AttachmentUtils.getSignalServiceAttachments(attachments);
1031
1032             // Upload attachments here, so we only upload once even for multiple recipients
1033             SignalServiceMessageSender messageSender = createMessageSender();
1034             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
1035             for (SignalServiceAttachment attachment : attachmentStreams) {
1036                 if (attachment.isStream()) {
1037                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1038                 } else if (attachment.isPointer()) {
1039                     attachmentPointers.add(attachment.asPointer());
1040                 }
1041             }
1042
1043             messageBuilder.withAttachments(attachmentPointers);
1044         }
1045         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1046     }
1047
1048     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1049             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1050     ) throws IOException, InvalidNumberException {
1051         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
1052                 remove,
1053                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
1054                 targetSentTimestamp);
1055         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1056                 .withReaction(reaction);
1057         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1058     }
1059
1060     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1061         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
1062
1063         final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
1064         try {
1065             return sendMessage(messageBuilder, signalServiceAddresses);
1066         } catch (Exception e) {
1067             for (SignalServiceAddress address : signalServiceAddresses) {
1068                 handleEndSession(address);
1069             }
1070             account.save();
1071             throw e;
1072         }
1073     }
1074
1075     public String getContactName(String number) throws InvalidNumberException {
1076         ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));
1077         if (contact == null) {
1078             return "";
1079         } else {
1080             return contact.name;
1081         }
1082     }
1083
1084     public void setContactName(String number, String name) throws InvalidNumberException {
1085         final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
1086         ContactInfo contact = account.getContactStore().getContact(address);
1087         if (contact == null) {
1088             contact = new ContactInfo(address);
1089         }
1090         contact.name = name;
1091         account.getContactStore().updateContact(contact);
1092         account.save();
1093     }
1094
1095     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
1096         setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
1097     }
1098
1099     private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
1100         ContactInfo contact = account.getContactStore().getContact(address);
1101         if (contact == null) {
1102             contact = new ContactInfo(address);
1103         }
1104         contact.blocked = blocked;
1105         account.getContactStore().updateContact(contact);
1106         account.save();
1107     }
1108
1109     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1110         GroupInfo group = getGroup(groupId);
1111         if (group == null) {
1112             throw new GroupNotFoundException(groupId);
1113         }
1114
1115         group.setBlocked(blocked);
1116         account.getGroupStore().updateGroup(group);
1117         account.save();
1118     }
1119
1120     public Pair<GroupId, List<SendMessageResult>> updateGroup(
1121             GroupId groupId, String name, List<String> members, String avatar
1122     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
1123         return sendUpdateGroupMessage(groupId,
1124                 name,
1125                 members == null ? null : getSignalServiceAddresses(members),
1126                 avatar);
1127     }
1128
1129     /**
1130      * Change the expiration timer for a contact
1131      */
1132     public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) throws IOException {
1133         ContactInfo contact = account.getContactStore().getContact(address);
1134         contact.messageExpirationTime = messageExpirationTimer;
1135         account.getContactStore().updateContact(contact);
1136         sendExpirationTimerUpdate(address);
1137         account.save();
1138     }
1139
1140     private void sendExpirationTimerUpdate(SignalServiceAddress address) throws IOException {
1141         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1142                 .asExpirationUpdate();
1143         sendMessage(messageBuilder, List.of(address));
1144     }
1145
1146     /**
1147      * Change the expiration timer for a contact
1148      */
1149     public void setExpirationTimer(
1150             String number, int messageExpirationTimer
1151     ) throws IOException, InvalidNumberException {
1152         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
1153         setExpirationTimer(address, messageExpirationTimer);
1154     }
1155
1156     /**
1157      * Change the expiration timer for a group
1158      */
1159     public void setExpirationTimer(GroupId groupId, int messageExpirationTimer) {
1160         GroupInfo g = account.getGroupStore().getGroup(groupId);
1161         if (g instanceof GroupInfoV1) {
1162             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
1163             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1164             account.getGroupStore().updateGroup(groupInfoV1);
1165         } else {
1166             throw new RuntimeException("TODO Not implemented!");
1167         }
1168     }
1169
1170     /**
1171      * Upload the sticker pack from path.
1172      *
1173      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1174      * @return if successful, returns the URL to install the sticker pack in the signal app
1175      */
1176     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1177         SignalServiceStickerManifestUpload manifest = getSignalServiceStickerManifestUpload(path);
1178
1179         SignalServiceMessageSender messageSender = createMessageSender();
1180
1181         byte[] packKey = KeyUtils.createStickerUploadKey();
1182         String packId = messageSender.uploadStickerManifest(manifest, packKey);
1183
1184         Sticker sticker = new Sticker(Hex.fromStringCondensed(packId), packKey);
1185         account.getStickerStore().updateSticker(sticker);
1186         account.save();
1187
1188         try {
1189             return new URI("https",
1190                     "signal.art",
1191                     "/addstickers/",
1192                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1193                             Hex.toStringCondensed(packKey),
1194                             StandardCharsets.UTF_8)).toString();
1195         } catch (URISyntaxException e) {
1196             throw new AssertionError(e);
1197         }
1198     }
1199
1200     private SignalServiceStickerManifestUpload getSignalServiceStickerManifestUpload(
1201             final File file
1202     ) throws IOException, StickerPackInvalidException {
1203         ZipFile zip = null;
1204         String rootPath = null;
1205
1206         if (file.getName().endsWith(".zip")) {
1207             zip = new ZipFile(file);
1208         } else if (file.getName().equals("manifest.json")) {
1209             rootPath = file.getParent();
1210         } else {
1211             throw new StickerPackInvalidException("Could not find manifest.json");
1212         }
1213
1214         JsonStickerPack pack = parseStickerPack(rootPath, zip);
1215
1216         if (pack.stickers == null) {
1217             throw new StickerPackInvalidException("Must set a 'stickers' field.");
1218         }
1219
1220         if (pack.stickers.isEmpty()) {
1221             throw new StickerPackInvalidException("Must include stickers.");
1222         }
1223
1224         List<StickerInfo> stickers = new ArrayList<>(pack.stickers.size());
1225         for (JsonStickerPack.JsonSticker sticker : pack.stickers) {
1226             if (sticker.file == null) {
1227                 throw new StickerPackInvalidException("Must set a 'file' field on each sticker.");
1228             }
1229
1230             Pair<InputStream, Long> data;
1231             try {
1232                 data = getInputStreamAndLength(rootPath, zip, sticker.file);
1233             } catch (IOException ignored) {
1234                 throw new StickerPackInvalidException("Could not find find " + sticker.file);
1235             }
1236
1237             String contentType = Utils.getFileMimeType(new File(sticker.file), null);
1238             StickerInfo stickerInfo = new StickerInfo(data.first(),
1239                     data.second(),
1240                     Optional.fromNullable(sticker.emoji).or(""),
1241                     contentType);
1242             stickers.add(stickerInfo);
1243         }
1244
1245         StickerInfo cover = null;
1246         if (pack.cover != null) {
1247             if (pack.cover.file == null) {
1248                 throw new StickerPackInvalidException("Must set a 'file' field on the cover.");
1249             }
1250
1251             Pair<InputStream, Long> data;
1252             try {
1253                 data = getInputStreamAndLength(rootPath, zip, pack.cover.file);
1254             } catch (IOException ignored) {
1255                 throw new StickerPackInvalidException("Could not find find " + pack.cover.file);
1256             }
1257
1258             String contentType = Utils.getFileMimeType(new File(pack.cover.file), null);
1259             cover = new StickerInfo(data.first(),
1260                     data.second(),
1261                     Optional.fromNullable(pack.cover.emoji).or(""),
1262                     contentType);
1263         }
1264
1265         return new SignalServiceStickerManifestUpload(pack.title, pack.author, cover, stickers);
1266     }
1267
1268     private static JsonStickerPack parseStickerPack(String rootPath, ZipFile zip) throws IOException {
1269         InputStream inputStream;
1270         if (zip != null) {
1271             inputStream = zip.getInputStream(zip.getEntry("manifest.json"));
1272         } else {
1273             inputStream = new FileInputStream((new File(rootPath, "manifest.json")));
1274         }
1275         return new ObjectMapper().readValue(inputStream, JsonStickerPack.class);
1276     }
1277
1278     private static Pair<InputStream, Long> getInputStreamAndLength(
1279             final String rootPath, final ZipFile zip, final String subfile
1280     ) throws IOException {
1281         if (zip != null) {
1282             final ZipEntry entry = zip.getEntry(subfile);
1283             return new Pair<>(zip.getInputStream(entry), entry.getSize());
1284         } else {
1285             final File file = new File(rootPath, subfile);
1286             return new Pair<>(new FileInputStream(file), file.length());
1287         }
1288     }
1289
1290     void requestSyncGroups() throws IOException {
1291         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1292                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1293                 .build();
1294         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1295         try {
1296             sendSyncMessage(message);
1297         } catch (UntrustedIdentityException e) {
1298             e.printStackTrace();
1299         }
1300     }
1301
1302     void requestSyncContacts() throws IOException {
1303         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1304                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1305                 .build();
1306         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1307         try {
1308             sendSyncMessage(message);
1309         } catch (UntrustedIdentityException e) {
1310             e.printStackTrace();
1311         }
1312     }
1313
1314     void requestSyncBlocked() throws IOException {
1315         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1316                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1317                 .build();
1318         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1319         try {
1320             sendSyncMessage(message);
1321         } catch (UntrustedIdentityException e) {
1322             e.printStackTrace();
1323         }
1324     }
1325
1326     void requestSyncConfiguration() throws IOException {
1327         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1328                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1329                 .build();
1330         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1331         try {
1332             sendSyncMessage(message);
1333         } catch (UntrustedIdentityException e) {
1334             e.printStackTrace();
1335         }
1336     }
1337
1338     private byte[] getSenderCertificate() {
1339         // TODO support UUID capable sender certificates
1340         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1341         byte[] certificate;
1342         try {
1343             certificate = accountManager.getSenderCertificate();
1344         } catch (IOException e) {
1345             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1346             return null;
1347         }
1348         // TODO cache for a day
1349         return certificate;
1350     }
1351
1352     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1353         SignalServiceMessageSender messageSender = createMessageSender();
1354         try {
1355             messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1356         } catch (UntrustedIdentityException e) {
1357             account.getSignalProtocolStore()
1358                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1359                             e.getIdentityKey(),
1360                             TrustLevel.UNTRUSTED);
1361             throw e;
1362         }
1363     }
1364
1365     private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1366         final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
1367         final Set<SignalServiceAddress> missingUuids = new HashSet<>();
1368
1369         for (String number : numbers) {
1370             final SignalServiceAddress resolvedAddress = canonicalizeAndResolveSignalServiceAddress(number);
1371             if (resolvedAddress.getUuid().isPresent()) {
1372                 signalServiceAddresses.add(resolvedAddress);
1373             } else {
1374                 missingUuids.add(resolvedAddress);
1375             }
1376         }
1377
1378         Map<String, UUID> registeredUsers;
1379         try {
1380             registeredUsers = accountManager.getRegisteredUsers(getIasKeyStore(),
1381                     missingUuids.stream().map(a -> a.getNumber().get()).collect(Collectors.toSet()),
1382                     CDS_MRENCLAVE);
1383         } catch (IOException | Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException e) {
1384             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1385             registeredUsers = new HashMap<>();
1386         }
1387
1388         for (SignalServiceAddress address : missingUuids) {
1389             final String number = address.getNumber().get();
1390             if (registeredUsers.containsKey(number)) {
1391                 final SignalServiceAddress newAddress = resolveSignalServiceAddress(new SignalServiceAddress(
1392                         registeredUsers.get(number),
1393                         number));
1394                 signalServiceAddresses.add(newAddress);
1395             } else {
1396                 signalServiceAddresses.add(address);
1397             }
1398         }
1399
1400         return signalServiceAddresses;
1401     }
1402
1403     private Pair<Long, List<SendMessageResult>> sendMessage(
1404             SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients
1405     ) throws IOException {
1406         recipients = recipients.stream().map(this::resolveSignalServiceAddress).collect(Collectors.toSet());
1407         final long timestamp = System.currentTimeMillis();
1408         messageBuilder.withTimestamp(timestamp);
1409         getOrCreateMessagePipe();
1410         getOrCreateUnidentifiedMessagePipe();
1411         SignalServiceDataMessage message = null;
1412         try {
1413             message = messageBuilder.build();
1414             if (message.getGroupContext().isPresent()) {
1415                 try {
1416                     SignalServiceMessageSender messageSender = createMessageSender();
1417                     final boolean isRecipientUpdate = false;
1418                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients),
1419                             unidentifiedAccessHelper.getAccessFor(recipients),
1420                             isRecipientUpdate,
1421                             message);
1422                     for (SendMessageResult r : result) {
1423                         if (r.getIdentityFailure() != null) {
1424                             account.getSignalProtocolStore()
1425                                     .saveIdentity(r.getAddress(),
1426                                             r.getIdentityFailure().getIdentityKey(),
1427                                             TrustLevel.UNTRUSTED);
1428                         }
1429                     }
1430                     return new Pair<>(timestamp, result);
1431                 } catch (UntrustedIdentityException e) {
1432                     account.getSignalProtocolStore()
1433                             .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1434                                     e.getIdentityKey(),
1435                                     TrustLevel.UNTRUSTED);
1436                     return new Pair<>(timestamp, List.of());
1437                 }
1438             } else {
1439                 // Send to all individually, so sync messages are sent correctly
1440                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1441                 for (SignalServiceAddress address : recipients) {
1442                     ContactInfo contact = account.getContactStore().getContact(address);
1443                     if (contact != null) {
1444                         messageBuilder.withExpiration(contact.messageExpirationTime);
1445                         messageBuilder.withProfileKey(account.getProfileKey().serialize());
1446                     } else {
1447                         messageBuilder.withExpiration(0);
1448                         messageBuilder.withProfileKey(null);
1449                     }
1450                     message = messageBuilder.build();
1451                     if (address.matches(account.getSelfAddress())) {
1452                         results.add(sendSelfMessage(message));
1453                     } else {
1454                         results.add(sendMessage(address, message));
1455                     }
1456                 }
1457                 return new Pair<>(timestamp, results);
1458             }
1459         } finally {
1460             if (message != null && message.isEndSession()) {
1461                 for (SignalServiceAddress recipient : recipients) {
1462                     handleEndSession(recipient);
1463                 }
1464             }
1465             account.save();
1466         }
1467     }
1468
1469     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1470         SignalServiceMessageSender messageSender = createMessageSender();
1471
1472         SignalServiceAddress recipient = account.getSelfAddress();
1473
1474         final Optional<UnidentifiedAccessPair> unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipient);
1475         SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1476                 message.getTimestamp(),
1477                 message,
1478                 message.getExpiresInSeconds(),
1479                 Map.of(recipient, unidentifiedAccess.isPresent()),
1480                 false);
1481         SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1482
1483         try {
1484             long startTime = System.currentTimeMillis();
1485             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1486             return SendMessageResult.success(recipient,
1487                     unidentifiedAccess.isPresent(),
1488                     false,
1489                     System.currentTimeMillis() - startTime);
1490         } catch (UntrustedIdentityException e) {
1491             account.getSignalProtocolStore()
1492                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1493                             e.getIdentityKey(),
1494                             TrustLevel.UNTRUSTED);
1495             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1496         }
1497     }
1498
1499     private SendMessageResult sendMessage(
1500             SignalServiceAddress address, SignalServiceDataMessage message
1501     ) throws IOException {
1502         SignalServiceMessageSender messageSender = createMessageSender();
1503
1504         try {
1505             return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(address), message);
1506         } catch (UntrustedIdentityException e) {
1507             account.getSignalProtocolStore()
1508                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1509                             e.getIdentityKey(),
1510                             TrustLevel.UNTRUSTED);
1511             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1512         }
1513     }
1514
1515     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1516         SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(),
1517                 account.getSignalProtocolStore(),
1518                 certificateValidator);
1519         try {
1520             return cipher.decrypt(envelope);
1521         } catch (ProtocolUntrustedIdentityException e) {
1522             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1523                 org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e
1524                         .getCause();
1525                 account.getSignalProtocolStore()
1526                         .saveIdentity(resolveSignalServiceAddress(identityException.getName()),
1527                                 identityException.getUntrustedIdentity(),
1528                                 TrustLevel.UNTRUSTED);
1529                 throw identityException;
1530             }
1531             throw new AssertionError(e);
1532         }
1533     }
1534
1535     private void handleEndSession(SignalServiceAddress source) {
1536         account.getSignalProtocolStore().deleteAllSessions(source);
1537     }
1538
1539     private static int currentTimeDays() {
1540         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
1541     }
1542
1543     private GroupsV2AuthorizationString getGroupAuthForToday(
1544             final GroupSecretParams groupSecretParams
1545     ) throws IOException {
1546         final int today = currentTimeDays();
1547         // Returns credentials for the next 7 days
1548         final HashMap<Integer, AuthCredentialResponse> credentials = groupsV2Api.getCredentials(today);
1549         // TODO cache credentials until they expire
1550         AuthCredentialResponse authCredentialResponse = credentials.get(today);
1551         try {
1552             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
1553                     today,
1554                     groupSecretParams,
1555                     authCredentialResponse);
1556         } catch (VerificationFailedException e) {
1557             throw new IOException(e);
1558         }
1559     }
1560
1561     private List<HandleAction> handleSignalServiceDataMessage(
1562             SignalServiceDataMessage message,
1563             boolean isSync,
1564             SignalServiceAddress source,
1565             SignalServiceAddress destination,
1566             boolean ignoreAttachments
1567     ) {
1568         List<HandleAction> actions = new ArrayList<>();
1569         if (message.getGroupContext().isPresent()) {
1570             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1571                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1572                 GroupIdV1 groupId = GroupId.v1(groupInfo.getGroupId());
1573                 GroupInfo group = account.getGroupStore().getGroup(groupId);
1574                 if (group == null || group instanceof GroupInfoV1) {
1575                     GroupInfoV1 groupV1 = (GroupInfoV1) group;
1576                     switch (groupInfo.getType()) {
1577                         case UPDATE: {
1578                             if (groupV1 == null) {
1579                                 groupV1 = new GroupInfoV1(groupId);
1580                             }
1581
1582                             if (groupInfo.getAvatar().isPresent()) {
1583                                 SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1584                                 if (avatar.isPointer()) {
1585                                     try {
1586                                         retrieveGroupAvatarAttachment(avatar.asPointer(), groupV1.getGroupId());
1587                                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1588                                         logger.warn("Failed to retrieve avatar for group {}, ignoring: {}",
1589                                                 groupId.toBase64(),
1590                                                 e.getMessage());
1591                                     }
1592                                 }
1593                             }
1594
1595                             if (groupInfo.getName().isPresent()) {
1596                                 groupV1.name = groupInfo.getName().get();
1597                             }
1598
1599                             if (groupInfo.getMembers().isPresent()) {
1600                                 groupV1.addMembers(groupInfo.getMembers()
1601                                         .get()
1602                                         .stream()
1603                                         .map(this::resolveSignalServiceAddress)
1604                                         .collect(Collectors.toSet()));
1605                             }
1606
1607                             account.getGroupStore().updateGroup(groupV1);
1608                             break;
1609                         }
1610                         case DELIVER:
1611                             if (groupV1 == null && !isSync) {
1612                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1613                             }
1614                             break;
1615                         case QUIT: {
1616                             if (groupV1 != null) {
1617                                 groupV1.removeMember(source);
1618                                 account.getGroupStore().updateGroup(groupV1);
1619                             }
1620                             break;
1621                         }
1622                         case REQUEST_INFO:
1623                             if (groupV1 != null && !isSync) {
1624                                 actions.add(new SendGroupUpdateAction(source, groupV1.getGroupId()));
1625                             }
1626                             break;
1627                     }
1628                 } else {
1629                     // Received a group v1 message for a v2 group
1630                 }
1631             }
1632             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1633                 final SignalServiceGroupV2 groupContext = message.getGroupContext().get().getGroupV2().get();
1634                 final GroupMasterKey groupMasterKey = groupContext.getMasterKey();
1635
1636                 getOrMigrateGroup(groupMasterKey,
1637                         groupContext.getRevision(),
1638                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1639             }
1640         }
1641
1642         final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;
1643         if (conversationPartnerAddress != null && message.isEndSession()) {
1644             handleEndSession(conversationPartnerAddress);
1645         }
1646         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1647             if (message.getGroupContext().isPresent()) {
1648                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1649                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1650                     GroupInfoV1 group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1651                     if (group != null) {
1652                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1653                             group.messageExpirationTime = message.getExpiresInSeconds();
1654                             account.getGroupStore().updateGroup(group);
1655                         }
1656                     }
1657                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1658                     // disappearing message timer already stored in the DecryptedGroup
1659                 }
1660             } else if (conversationPartnerAddress != null) {
1661                 ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
1662                 if (contact == null) {
1663                     contact = new ContactInfo(conversationPartnerAddress);
1664                 }
1665                 if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
1666                     contact.messageExpirationTime = message.getExpiresInSeconds();
1667                     account.getContactStore().updateContact(contact);
1668                 }
1669             }
1670         }
1671         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1672             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1673                 if (attachment.isPointer()) {
1674                     try {
1675                         retrieveAttachment(attachment.asPointer());
1676                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1677                         logger.warn("Failed to retrieve attachment ({}), ignoring: {}",
1678                                 attachment.asPointer().getRemoteId(),
1679                                 e.getMessage());
1680                     }
1681                 }
1682             }
1683         }
1684         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1685             final ProfileKey profileKey;
1686             try {
1687                 profileKey = new ProfileKey(message.getProfileKey().get());
1688             } catch (InvalidInputException e) {
1689                 throw new AssertionError(e);
1690             }
1691             if (source.matches(account.getSelfAddress())) {
1692                 this.account.setProfileKey(profileKey);
1693             }
1694             this.account.getProfileStore().storeProfileKey(source, profileKey);
1695         }
1696         if (message.getPreviews().isPresent()) {
1697             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1698             for (SignalServiceDataMessage.Preview preview : previews) {
1699                 if (preview.getImage().isPresent() && preview.getImage().get().isPointer()) {
1700                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
1701                     try {
1702                         retrieveAttachment(attachment);
1703                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1704                         logger.warn("Failed to retrieve preview image ({}), ignoring: {}",
1705                                 attachment.getRemoteId(),
1706                                 e.getMessage());
1707                     }
1708                 }
1709             }
1710         }
1711         if (message.getQuote().isPresent()) {
1712             final SignalServiceDataMessage.Quote quote = message.getQuote().get();
1713
1714             for (SignalServiceDataMessage.Quote.QuotedAttachment quotedAttachment : quote.getAttachments()) {
1715                 final SignalServiceAttachment attachment = quotedAttachment.getThumbnail();
1716                 if (attachment != null && attachment.isPointer()) {
1717                     try {
1718                         retrieveAttachment(attachment.asPointer());
1719                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1720                         logger.warn("Failed to retrieve quote attachment thumbnail ({}), ignoring: {}",
1721                                 attachment.asPointer().getRemoteId(),
1722                                 e.getMessage());
1723                     }
1724                 }
1725             }
1726         }
1727         if (message.getSticker().isPresent()) {
1728             final SignalServiceDataMessage.Sticker messageSticker = message.getSticker().get();
1729             Sticker sticker = account.getStickerStore().getSticker(messageSticker.getPackId());
1730             if (sticker == null) {
1731                 sticker = new Sticker(messageSticker.getPackId(), messageSticker.getPackKey());
1732                 account.getStickerStore().updateSticker(sticker);
1733             }
1734         }
1735         return actions;
1736     }
1737
1738     private GroupInfoV2 getOrMigrateGroup(
1739             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1740     ) {
1741         final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1742
1743         GroupIdV2 groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1744         GroupInfo groupInfo = account.getGroupStore().getGroup(groupId);
1745         final GroupInfoV2 groupInfoV2;
1746         if (groupInfo instanceof GroupInfoV1) {
1747             // Received a v2 group message for a v1 group, we need to locally migrate the group
1748             account.getGroupStore().deleteGroup(groupInfo.getGroupId());
1749             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1750             logger.info("Locally migrated group {} to group v2, id: {}",
1751                     groupInfo.getGroupId().toBase64(),
1752                     groupInfoV2.getGroupId().toBase64());
1753         } else if (groupInfo instanceof GroupInfoV2) {
1754             groupInfoV2 = (GroupInfoV2) groupInfo;
1755         } else {
1756             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1757         }
1758
1759         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1760             DecryptedGroup group = null;
1761             if (signedGroupChange != null
1762                     && groupInfoV2.getGroup() != null
1763                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1764                 group = groupHelper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(), signedGroupChange, groupMasterKey);
1765             }
1766             if (group == null) {
1767                 group = groupHelper.getDecryptedGroup(groupSecretParams);
1768             }
1769             if (group != null) {
1770                 storeProfileKeysFromMembers(group);
1771                 final String avatar = group.getAvatar();
1772                 if (avatar != null && !avatar.isEmpty()) {
1773                     try {
1774                         retrieveGroupAvatar(groupId, groupSecretParams, avatar);
1775                     } catch (IOException e) {
1776                         logger.warn("Failed to download group avatar, ignoring: {}", e.getMessage());
1777                     }
1778                 }
1779             }
1780             groupInfoV2.setGroup(group);
1781             account.getGroupStore().updateGroup(groupInfoV2);
1782         }
1783
1784         return groupInfoV2;
1785     }
1786
1787     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1788         for (DecryptedMember member : group.getMembersList()) {
1789             final SignalServiceAddress address = resolveSignalServiceAddress(new SignalServiceAddress(UuidUtil.parseOrThrow(
1790                     member.getUuid().toByteArray()), null));
1791             try {
1792                 account.getProfileStore()
1793                         .storeProfileKey(address, new ProfileKey(member.getProfileKey().toByteArray()));
1794             } catch (InvalidInputException ignored) {
1795             }
1796         }
1797     }
1798
1799     private void retryFailedReceivedMessages(
1800             ReceiveMessageHandler handler, boolean ignoreAttachments
1801     ) {
1802         final File cachePath = getMessageCachePath();
1803         if (!cachePath.exists()) {
1804             return;
1805         }
1806         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
1807             if (!dir.isDirectory()) {
1808                 retryFailedReceivedMessage(handler, ignoreAttachments, dir);
1809                 continue;
1810             }
1811
1812             for (final File fileEntry : Objects.requireNonNull(dir.listFiles())) {
1813                 if (!fileEntry.isFile()) {
1814                     continue;
1815                 }
1816                 retryFailedReceivedMessage(handler, ignoreAttachments, fileEntry);
1817             }
1818             // Try to delete directory if empty
1819             dir.delete();
1820         }
1821     }
1822
1823     private void retryFailedReceivedMessage(
1824             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final File fileEntry
1825     ) {
1826         SignalServiceEnvelope envelope;
1827         try {
1828             envelope = MessageCacheUtils.loadEnvelope(fileEntry);
1829             if (envelope == null) {
1830                 return;
1831             }
1832         } catch (IOException e) {
1833             e.printStackTrace();
1834             return;
1835         }
1836         SignalServiceContent content = null;
1837         if (!envelope.isReceipt()) {
1838             try {
1839                 content = decryptMessage(envelope);
1840             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1841                 return;
1842             } catch (Exception er) {
1843                 // All other errors are not recoverable, so delete the cached message
1844                 try {
1845                     Files.delete(fileEntry.toPath());
1846                 } catch (IOException e) {
1847                     logger.warn("Failed to delete cached message file “{}”, ignoring: {}", fileEntry, e.getMessage());
1848                 }
1849                 return;
1850             }
1851             List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1852             for (HandleAction action : actions) {
1853                 try {
1854                     action.execute(this);
1855                 } catch (Throwable e) {
1856                     e.printStackTrace();
1857                 }
1858             }
1859         }
1860         account.save();
1861         handler.handleMessage(envelope, content, null);
1862         try {
1863             Files.delete(fileEntry.toPath());
1864         } catch (IOException e) {
1865             logger.warn("Failed to delete cached message file “{}”, ignoring: {}", fileEntry, e.getMessage());
1866         }
1867     }
1868
1869     public void receiveMessages(
1870             long timeout,
1871             TimeUnit unit,
1872             boolean returnOnTimeout,
1873             boolean ignoreAttachments,
1874             ReceiveMessageHandler handler
1875     ) throws IOException {
1876         retryFailedReceivedMessages(handler, ignoreAttachments);
1877
1878         Set<HandleAction> queuedActions = null;
1879
1880         getOrCreateMessagePipe();
1881
1882         boolean hasCaughtUpWithOldMessages = false;
1883
1884         while (true) {
1885             SignalServiceEnvelope envelope;
1886             SignalServiceContent content = null;
1887             Exception exception = null;
1888             final long now = new Date().getTime();
1889             try {
1890                 Optional<SignalServiceEnvelope> result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1891                     // store message on disk, before acknowledging receipt to the server
1892                     try {
1893                         String source = envelope1.getSourceE164().isPresent() ? envelope1.getSourceE164().get() : "";
1894                         File cacheFile = getMessageCacheFile(source, now, envelope1.getTimestamp());
1895                         MessageCacheUtils.storeEnvelope(envelope1, cacheFile);
1896                     } catch (IOException e) {
1897                         logger.warn("Failed to store encrypted message in disk cache, ignoring: {}", e.getMessage());
1898                     }
1899                 });
1900                 if (result.isPresent()) {
1901                     envelope = result.get();
1902                 } else {
1903                     // Received indicator that server queue is empty
1904                     hasCaughtUpWithOldMessages = true;
1905
1906                     if (queuedActions != null) {
1907                         for (HandleAction action : queuedActions) {
1908                             try {
1909                                 action.execute(this);
1910                             } catch (Throwable e) {
1911                                 e.printStackTrace();
1912                             }
1913                         }
1914                         account.save();
1915                         queuedActions.clear();
1916                         queuedActions = null;
1917                     }
1918
1919                     // Continue to wait another timeout for new messages
1920                     continue;
1921                 }
1922             } catch (TimeoutException e) {
1923                 if (returnOnTimeout) return;
1924                 continue;
1925             } catch (InvalidVersionException e) {
1926                 logger.warn("Error while receiving messages, ignoring: {}", e.getMessage());
1927                 continue;
1928             }
1929
1930             if (envelope.hasSource()) {
1931                 // Store uuid if we don't have it already
1932                 SignalServiceAddress source = envelope.getSourceAddress();
1933                 resolveSignalServiceAddress(source);
1934             }
1935             if (!envelope.isReceipt()) {
1936                 try {
1937                     content = decryptMessage(envelope);
1938                 } catch (Exception e) {
1939                     exception = e;
1940                 }
1941                 List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1942                 if (hasCaughtUpWithOldMessages) {
1943                     for (HandleAction action : actions) {
1944                         try {
1945                             action.execute(this);
1946                         } catch (Throwable e) {
1947                             e.printStackTrace();
1948                         }
1949                     }
1950                 } else {
1951                     if (queuedActions == null) {
1952                         queuedActions = new HashSet<>();
1953                     }
1954                     queuedActions.addAll(actions);
1955                 }
1956             }
1957             account.save();
1958             if (!isMessageBlocked(envelope, content)) {
1959                 handler.handleMessage(envelope, content, exception);
1960             }
1961             if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
1962                 File cacheFile = null;
1963                 try {
1964                     String source = envelope.getSourceE164().isPresent() ? envelope.getSourceE164().get() : "";
1965                     cacheFile = getMessageCacheFile(source, now, envelope.getTimestamp());
1966                     Files.delete(cacheFile.toPath());
1967                     // Try to delete directory if empty
1968                     getMessageCachePath().delete();
1969                 } catch (IOException e) {
1970                     logger.warn("Failed to delete cached message file “{}”, ignoring: {}", cacheFile, e.getMessage());
1971                 }
1972             }
1973         }
1974     }
1975
1976     private boolean isMessageBlocked(
1977             SignalServiceEnvelope envelope, SignalServiceContent content
1978     ) {
1979         SignalServiceAddress source;
1980         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1981             source = envelope.getSourceAddress();
1982         } else if (content != null) {
1983             source = content.getSender();
1984         } else {
1985             return false;
1986         }
1987         ContactInfo sourceContact = account.getContactStore().getContact(source);
1988         if (sourceContact != null && sourceContact.blocked) {
1989             return true;
1990         }
1991
1992         if (content != null && content.getDataMessage().isPresent()) {
1993             SignalServiceDataMessage message = content.getDataMessage().get();
1994             if (message.getGroupContext().isPresent()) {
1995                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1996                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1997                     if (groupInfo.getType() != SignalServiceGroup.Type.DELIVER) {
1998                         return false;
1999                     }
2000                 }
2001                 GroupId groupId = GroupUtils.getGroupId(message.getGroupContext().get());
2002                 GroupInfo group = account.getGroupStore().getGroup(groupId);
2003                 if (group != null && group.isBlocked()) {
2004                     return true;
2005                 }
2006             }
2007         }
2008         return false;
2009     }
2010
2011     private List<HandleAction> handleMessage(
2012             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
2013     ) {
2014         List<HandleAction> actions = new ArrayList<>();
2015         if (content != null) {
2016             final SignalServiceAddress sender;
2017             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2018                 sender = envelope.getSourceAddress();
2019             } else {
2020                 sender = content.getSender();
2021             }
2022             // Store uuid if we don't have it already
2023             resolveSignalServiceAddress(sender);
2024
2025             if (content.getDataMessage().isPresent()) {
2026                 SignalServiceDataMessage message = content.getDataMessage().get();
2027
2028                 if (content.isNeedsReceipt()) {
2029                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
2030                 }
2031
2032                 actions.addAll(handleSignalServiceDataMessage(message,
2033                         false,
2034                         sender,
2035                         account.getSelfAddress(),
2036                         ignoreAttachments));
2037             }
2038             if (content.getSyncMessage().isPresent()) {
2039                 account.setMultiDevice(true);
2040                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
2041                 if (syncMessage.getSent().isPresent()) {
2042                     SentTranscriptMessage message = syncMessage.getSent().get();
2043                     final SignalServiceAddress destination = message.getDestination().orNull();
2044                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
2045                             true,
2046                             sender,
2047                             destination,
2048                             ignoreAttachments));
2049                 }
2050                 if (syncMessage.getRequest().isPresent()) {
2051                     RequestMessage rm = syncMessage.getRequest().get();
2052                     if (rm.isContactsRequest()) {
2053                         actions.add(SendSyncContactsAction.create());
2054                     }
2055                     if (rm.isGroupsRequest()) {
2056                         actions.add(SendSyncGroupsAction.create());
2057                     }
2058                     if (rm.isBlockedListRequest()) {
2059                         actions.add(SendSyncBlockedListAction.create());
2060                     }
2061                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
2062                 }
2063                 if (syncMessage.getGroups().isPresent()) {
2064                     File tmpFile = null;
2065                     try {
2066                         tmpFile = IOUtils.createTempFile();
2067                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups()
2068                                 .get()
2069                                 .asPointer(), tmpFile)) {
2070                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
2071                             DeviceGroup g;
2072                             while ((g = s.read()) != null) {
2073                                 GroupInfoV1 syncGroup = account.getGroupStore()
2074                                         .getOrCreateGroupV1(GroupId.v1(g.getId()));
2075                                 if (syncGroup != null) {
2076                                     if (g.getName().isPresent()) {
2077                                         syncGroup.name = g.getName().get();
2078                                     }
2079                                     syncGroup.addMembers(g.getMembers()
2080                                             .stream()
2081                                             .map(this::resolveSignalServiceAddress)
2082                                             .collect(Collectors.toSet()));
2083                                     if (!g.isActive()) {
2084                                         syncGroup.removeMember(account.getSelfAddress());
2085                                     } else {
2086                                         // Add ourself to the member set as it's marked as active
2087                                         syncGroup.addMembers(List.of(account.getSelfAddress()));
2088                                     }
2089                                     syncGroup.blocked = g.isBlocked();
2090                                     if (g.getColor().isPresent()) {
2091                                         syncGroup.color = g.getColor().get();
2092                                     }
2093
2094                                     if (g.getAvatar().isPresent()) {
2095                                         retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.getGroupId());
2096                                     }
2097                                     syncGroup.inboxPosition = g.getInboxPosition().orNull();
2098                                     syncGroup.archived = g.isArchived();
2099                                     account.getGroupStore().updateGroup(syncGroup);
2100                                 }
2101                             }
2102                         }
2103                     } catch (Exception e) {
2104                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2105                                 tmpFile,
2106                                 e.getMessage());
2107                         e.printStackTrace();
2108                     } finally {
2109                         if (tmpFile != null) {
2110                             try {
2111                                 Files.delete(tmpFile.toPath());
2112                             } catch (IOException e) {
2113                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2114                                         tmpFile,
2115                                         e.getMessage());
2116                             }
2117                         }
2118                     }
2119                 }
2120                 if (syncMessage.getBlockedList().isPresent()) {
2121                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
2122                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
2123                         setContactBlocked(resolveSignalServiceAddress(address), true);
2124                     }
2125                     for (GroupId groupId : blockedListMessage.getGroupIds()
2126                             .stream()
2127                             .map(GroupId::unknownVersion)
2128                             .collect(Collectors.toSet())) {
2129                         try {
2130                             setGroupBlocked(groupId, true);
2131                         } catch (GroupNotFoundException e) {
2132                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2133                                     groupId.toBase64());
2134                         }
2135                     }
2136                 }
2137                 if (syncMessage.getContacts().isPresent()) {
2138                     File tmpFile = null;
2139                     try {
2140                         tmpFile = IOUtils.createTempFile();
2141                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
2142                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2143                                 .asPointer(), tmpFile)) {
2144                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
2145                             if (contactsMessage.isComplete()) {
2146                                 account.getContactStore().clear();
2147                             }
2148                             DeviceContact c;
2149                             while ((c = s.read()) != null) {
2150                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2151                                     account.setProfileKey(c.getProfileKey().get());
2152                                 }
2153                                 final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
2154                                 ContactInfo contact = account.getContactStore().getContact(address);
2155                                 if (contact == null) {
2156                                     contact = new ContactInfo(address);
2157                                 }
2158                                 if (c.getName().isPresent()) {
2159                                     contact.name = c.getName().get();
2160                                 }
2161                                 if (c.getColor().isPresent()) {
2162                                     contact.color = c.getColor().get();
2163                                 }
2164                                 if (c.getProfileKey().isPresent()) {
2165                                     account.getProfileStore().storeProfileKey(address, c.getProfileKey().get());
2166                                 }
2167                                 if (c.getVerified().isPresent()) {
2168                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
2169                                     account.getSignalProtocolStore()
2170                                             .setIdentityTrustLevel(verifiedMessage.getDestination(),
2171                                                     verifiedMessage.getIdentityKey(),
2172                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2173                                 }
2174                                 if (c.getExpirationTimer().isPresent()) {
2175                                     contact.messageExpirationTime = c.getExpirationTimer().get();
2176                                 }
2177                                 contact.blocked = c.isBlocked();
2178                                 contact.inboxPosition = c.getInboxPosition().orNull();
2179                                 contact.archived = c.isArchived();
2180                                 account.getContactStore().updateContact(contact);
2181
2182                                 if (c.getAvatar().isPresent()) {
2183                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
2184                                 }
2185                             }
2186                         }
2187                     } catch (Exception e) {
2188                         e.printStackTrace();
2189                     } finally {
2190                         if (tmpFile != null) {
2191                             try {
2192                                 Files.delete(tmpFile.toPath());
2193                             } catch (IOException e) {
2194                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2195                                         tmpFile,
2196                                         e.getMessage());
2197                             }
2198                         }
2199                     }
2200                 }
2201                 if (syncMessage.getVerified().isPresent()) {
2202                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
2203                     account.getSignalProtocolStore()
2204                             .setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()),
2205                                     verifiedMessage.getIdentityKey(),
2206                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2207                 }
2208                 if (syncMessage.getStickerPackOperations().isPresent()) {
2209                     final List<StickerPackOperationMessage> stickerPackOperationMessages = syncMessage.getStickerPackOperations()
2210                             .get();
2211                     for (StickerPackOperationMessage m : stickerPackOperationMessages) {
2212                         if (!m.getPackId().isPresent()) {
2213                             continue;
2214                         }
2215                         Sticker sticker = account.getStickerStore().getSticker(m.getPackId().get());
2216                         if (sticker == null) {
2217                             if (!m.getPackKey().isPresent()) {
2218                                 continue;
2219                             }
2220                             sticker = new Sticker(m.getPackId().get(), m.getPackKey().get());
2221                         }
2222                         sticker.setInstalled(!m.getType().isPresent()
2223                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2224                         account.getStickerStore().updateSticker(sticker);
2225                     }
2226                 }
2227                 if (syncMessage.getConfiguration().isPresent()) {
2228                     // TODO
2229                 }
2230             }
2231         }
2232         return actions;
2233     }
2234
2235     private File getContactAvatarFile(String number) {
2236         return new File(pathConfig.getAvatarsPath(), "contact-" + number);
2237     }
2238
2239     private File retrieveContactAvatarAttachment(
2240             SignalServiceAttachment attachment, String number
2241     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2242         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2243         if (attachment.isPointer()) {
2244             SignalServiceAttachmentPointer pointer = attachment.asPointer();
2245             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
2246         } else {
2247             SignalServiceAttachmentStream stream = attachment.asStream();
2248             return AttachmentUtils.retrieveAttachment(stream, getContactAvatarFile(number));
2249         }
2250     }
2251
2252     private File getGroupAvatarFile(GroupId groupId) {
2253         return new File(pathConfig.getAvatarsPath(), "group-" + groupId.toBase64().replace("/", "_"));
2254     }
2255
2256     private File retrieveGroupAvatarAttachment(
2257             SignalServiceAttachment attachment, GroupId groupId
2258     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2259         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2260         if (attachment.isPointer()) {
2261             SignalServiceAttachmentPointer pointer = attachment.asPointer();
2262             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
2263         } else {
2264             SignalServiceAttachmentStream stream = attachment.asStream();
2265             return AttachmentUtils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
2266         }
2267     }
2268
2269     private File retrieveGroupAvatar(
2270             GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey
2271     ) throws IOException {
2272         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2273         SignalServiceMessageReceiver receiver = getOrCreateMessageReceiver();
2274         File outputFile = getGroupAvatarFile(groupId);
2275         GroupsV2Operations.GroupOperations groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2276
2277         File tmpFile = IOUtils.createTempFile();
2278         tmpFile.deleteOnExit();
2279         try (InputStream input = receiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2280                 tmpFile,
2281                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2282             byte[] encryptedData = IOUtils.readFully(input);
2283
2284             byte[] decryptedData = groupOperations.decryptAvatar(encryptedData);
2285             try (OutputStream output = new FileOutputStream(outputFile)) {
2286                 output.write(decryptedData);
2287             }
2288         } finally {
2289             try {
2290                 Files.delete(tmpFile.toPath());
2291             } catch (IOException e) {
2292                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2293                         tmpFile,
2294                         e.getMessage());
2295             }
2296         }
2297         return outputFile;
2298     }
2299
2300     private File getProfileAvatarFile(SignalServiceAddress address) {
2301         return new File(pathConfig.getAvatarsPath(), "profile-" + address.getLegacyIdentifier());
2302     }
2303
2304     private File retrieveProfileAvatar(
2305             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2306     ) throws IOException {
2307         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2308         SignalServiceMessageReceiver receiver = getOrCreateMessageReceiver();
2309         File outputFile = getProfileAvatarFile(address);
2310
2311         File tmpFile = IOUtils.createTempFile();
2312         try (InputStream input = receiver.retrieveProfileAvatar(avatarPath,
2313                 tmpFile,
2314                 profileKey,
2315                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2316             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2317             IOUtils.copyStreamToFile(input, outputFile, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2318         } finally {
2319             try {
2320                 Files.delete(tmpFile.toPath());
2321             } catch (IOException e) {
2322                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2323                         tmpFile,
2324                         e.getMessage());
2325             }
2326         }
2327         return outputFile;
2328     }
2329
2330     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2331         return new File(pathConfig.getAttachmentsPath(), attachmentId.toString());
2332     }
2333
2334     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException, MissingConfigurationException {
2335         IOUtils.createPrivateDirectories(pathConfig.getAttachmentsPath());
2336         return retrieveAttachment(pointer, getAttachmentFile(pointer.getRemoteId()), true);
2337     }
2338
2339     private File retrieveAttachment(
2340             SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview
2341     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2342         if (storePreview && pointer.getPreview().isPresent()) {
2343             File previewFile = new File(outputFile + ".preview");
2344             try (OutputStream output = new FileOutputStream(previewFile)) {
2345                 byte[] preview = pointer.getPreview().get();
2346                 output.write(preview, 0, preview.length);
2347             } catch (FileNotFoundException e) {
2348                 e.printStackTrace();
2349                 return null;
2350             }
2351         }
2352
2353         final SignalServiceMessageReceiver messageReceiver = getOrCreateMessageReceiver();
2354
2355         File tmpFile = IOUtils.createTempFile();
2356         try (InputStream input = messageReceiver.retrieveAttachment(pointer,
2357                 tmpFile,
2358                 ServiceConfig.MAX_ATTACHMENT_SIZE)) {
2359             IOUtils.copyStreamToFile(input, outputFile);
2360         } finally {
2361             try {
2362                 Files.delete(tmpFile.toPath());
2363             } catch (IOException e) {
2364                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2365                         tmpFile,
2366                         e.getMessage());
2367             }
2368         }
2369         return outputFile;
2370     }
2371
2372     private InputStream retrieveAttachmentAsStream(
2373             SignalServiceAttachmentPointer pointer, File tmpFile
2374     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2375         final SignalServiceMessageReceiver messageReceiver = getOrCreateMessageReceiver();
2376         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2377     }
2378
2379     void sendGroups() throws IOException, UntrustedIdentityException {
2380         File groupsFile = IOUtils.createTempFile();
2381
2382         try {
2383             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2384                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
2385                 for (GroupInfo record : account.getGroupStore().getGroups()) {
2386                     if (record instanceof GroupInfoV1) {
2387                         GroupInfoV1 groupInfo = (GroupInfoV1) record;
2388                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2389                                 Optional.fromNullable(groupInfo.name),
2390                                 new ArrayList<>(groupInfo.getMembers()),
2391                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2392                                 groupInfo.isMember(account.getSelfAddress()),
2393                                 Optional.of(groupInfo.messageExpirationTime),
2394                                 Optional.fromNullable(groupInfo.color),
2395                                 groupInfo.blocked,
2396                                 Optional.fromNullable(groupInfo.inboxPosition),
2397                                 groupInfo.archived));
2398                     }
2399                 }
2400             }
2401
2402             if (groupsFile.exists() && groupsFile.length() > 0) {
2403                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
2404                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2405                             .withStream(groupsFileStream)
2406                             .withContentType("application/octet-stream")
2407                             .withLength(groupsFile.length())
2408                             .build();
2409
2410                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2411                 }
2412             }
2413         } finally {
2414             try {
2415                 Files.delete(groupsFile.toPath());
2416             } catch (IOException e) {
2417                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2418             }
2419         }
2420     }
2421
2422     public void sendContacts() throws IOException, UntrustedIdentityException {
2423         File contactsFile = IOUtils.createTempFile();
2424
2425         try {
2426             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2427                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
2428                 for (ContactInfo record : account.getContactStore().getContacts()) {
2429                     VerifiedMessage verifiedMessage = null;
2430                     IdentityInfo currentIdentity = account.getSignalProtocolStore().getIdentity(record.getAddress());
2431                     if (currentIdentity != null) {
2432                         verifiedMessage = new VerifiedMessage(record.getAddress(),
2433                                 currentIdentity.getIdentityKey(),
2434                                 currentIdentity.getTrustLevel().toVerifiedState(),
2435                                 currentIdentity.getDateAdded().getTime());
2436                     }
2437
2438                     ProfileKey profileKey = account.getProfileStore().getProfileKey(record.getAddress());
2439                     out.write(new DeviceContact(record.getAddress(),
2440                             Optional.fromNullable(record.name),
2441                             createContactAvatarAttachment(record.number),
2442                             Optional.fromNullable(record.color),
2443                             Optional.fromNullable(verifiedMessage),
2444                             Optional.fromNullable(profileKey),
2445                             record.blocked,
2446                             Optional.of(record.messageExpirationTime),
2447                             Optional.fromNullable(record.inboxPosition),
2448                             record.archived));
2449                 }
2450
2451                 if (account.getProfileKey() != null) {
2452                     // Send our own profile key as well
2453                     out.write(new DeviceContact(account.getSelfAddress(),
2454                             Optional.absent(),
2455                             Optional.absent(),
2456                             Optional.absent(),
2457                             Optional.absent(),
2458                             Optional.of(account.getProfileKey()),
2459                             false,
2460                             Optional.absent(),
2461                             Optional.absent(),
2462                             false));
2463                 }
2464             }
2465
2466             if (contactsFile.exists() && contactsFile.length() > 0) {
2467                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
2468                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2469                             .withStream(contactsFileStream)
2470                             .withContentType("application/octet-stream")
2471                             .withLength(contactsFile.length())
2472                             .build();
2473
2474                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2475                 }
2476             }
2477         } finally {
2478             try {
2479                 Files.delete(contactsFile.toPath());
2480             } catch (IOException e) {
2481                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2482             }
2483         }
2484     }
2485
2486     void sendBlockedList() throws IOException, UntrustedIdentityException {
2487         List<SignalServiceAddress> addresses = new ArrayList<>();
2488         for (ContactInfo record : account.getContactStore().getContacts()) {
2489             if (record.blocked) {
2490                 addresses.add(record.getAddress());
2491             }
2492         }
2493         List<byte[]> groupIds = new ArrayList<>();
2494         for (GroupInfo record : account.getGroupStore().getGroups()) {
2495             if (record.isBlocked()) {
2496                 groupIds.add(record.getGroupId().serialize());
2497             }
2498         }
2499         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2500     }
2501
2502     private void sendVerifiedMessage(
2503             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2504     ) throws IOException, UntrustedIdentityException {
2505         VerifiedMessage verifiedMessage = new VerifiedMessage(destination,
2506                 identityKey,
2507                 trustLevel.toVerifiedState(),
2508                 System.currentTimeMillis());
2509         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2510     }
2511
2512     public List<ContactInfo> getContacts() {
2513         return account.getContactStore().getContacts();
2514     }
2515
2516     public ContactInfo getContact(String number) {
2517         return account.getContactStore().getContact(Utils.getSignalServiceAddressFromIdentifier(number));
2518     }
2519
2520     public GroupInfo getGroup(GroupId groupId) {
2521         return account.getGroupStore().getGroup(groupId);
2522     }
2523
2524     public List<IdentityInfo> getIdentities() {
2525         return account.getSignalProtocolStore().getIdentities();
2526     }
2527
2528     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2529         return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));
2530     }
2531
2532     /**
2533      * Trust this the identity with this fingerprint
2534      *
2535      * @param name        username of the identity
2536      * @param fingerprint Fingerprint
2537      */
2538     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2539         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2540         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2541         if (ids == null) {
2542             return false;
2543         }
2544         for (IdentityInfo id : ids) {
2545             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
2546                 continue;
2547             }
2548
2549             account.getSignalProtocolStore()
2550                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2551             try {
2552                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2553             } catch (IOException | UntrustedIdentityException e) {
2554                 e.printStackTrace();
2555             }
2556             account.save();
2557             return true;
2558         }
2559         return false;
2560     }
2561
2562     /**
2563      * Trust this the identity with this safety number
2564      *
2565      * @param name         username of the identity
2566      * @param safetyNumber Safety number
2567      */
2568     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2569         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2570         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2571         if (ids == null) {
2572             return false;
2573         }
2574         for (IdentityInfo id : ids) {
2575             if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {
2576                 continue;
2577             }
2578
2579             account.getSignalProtocolStore()
2580                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2581             try {
2582                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2583             } catch (IOException | UntrustedIdentityException e) {
2584                 e.printStackTrace();
2585             }
2586             account.save();
2587             return true;
2588         }
2589         return false;
2590     }
2591
2592     /**
2593      * Trust all keys of this identity without verification
2594      *
2595      * @param name username of the identity
2596      */
2597     public boolean trustIdentityAllKeys(String name) {
2598         SignalServiceAddress address = resolveSignalServiceAddress(name);
2599         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2600         if (ids == null) {
2601             return false;
2602         }
2603         for (IdentityInfo id : ids) {
2604             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2605                 account.getSignalProtocolStore()
2606                         .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2607                 try {
2608                     sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2609                 } catch (IOException | UntrustedIdentityException e) {
2610                     e.printStackTrace();
2611                 }
2612             }
2613         }
2614         account.save();
2615         return true;
2616     }
2617
2618     public String computeSafetyNumber(
2619             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2620     ) {
2621         return Utils.computeSafetyNumber(ServiceConfig.capabilities.isUuid(),
2622                 account.getSelfAddress(),
2623                 getIdentityKeyPair().getPublicKey(),
2624                 theirAddress,
2625                 theirIdentityKey);
2626     }
2627
2628     void saveAccount() {
2629         account.save();
2630     }
2631
2632     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2633         String canonicalizedNumber = UuidUtil.isUuid(identifier)
2634                 ? identifier
2635                 : PhoneNumberFormatter.formatNumber(identifier, account.getUsername());
2636         return resolveSignalServiceAddress(canonicalizedNumber);
2637     }
2638
2639     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2640         SignalServiceAddress address = Utils.getSignalServiceAddressFromIdentifier(identifier);
2641
2642         return resolveSignalServiceAddress(address);
2643     }
2644
2645     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2646         if (address.matches(account.getSelfAddress())) {
2647             return account.getSelfAddress();
2648         }
2649
2650         return account.getRecipientStore().resolveServiceAddress(address);
2651     }
2652
2653     @Override
2654     public void close() throws IOException {
2655         if (messagePipe != null) {
2656             messagePipe.shutdown();
2657             messagePipe = null;
2658         }
2659
2660         if (unidentifiedMessagePipe != null) {
2661             unidentifiedMessagePipe.shutdown();
2662             unidentifiedMessagePipe = null;
2663         }
2664
2665         account.close();
2666     }
2667
2668     public interface ReceiveMessageHandler {
2669
2670         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2671     }
2672 }