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.helper.GroupHelper;
  22 import org.asamk.signal.manager.helper.ProfileHelper;
  23 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  24 import org.asamk.signal.storage.SignalAccount;
  25 import org.asamk.signal.storage.contacts.ContactInfo;
  26 import org.asamk.signal.storage.groups.GroupInfo;
  27 import org.asamk.signal.storage.groups.GroupInfoV1;
  28 import org.asamk.signal.storage.groups.GroupInfoV2;
  29 import org.asamk.signal.storage.profiles.SignalProfile;
  30 import org.asamk.signal.storage.profiles.SignalProfileEntry;
  31 import org.asamk.signal.storage.protocol.JsonIdentityKeyStore;
  32 import org.asamk.signal.storage.stickers.Sticker;
  33 import org.asamk.signal.util.IOUtils;
  34 import org.asamk.signal.util.Util;
  35 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  36 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  37 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  38 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  39 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  40 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  41 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  42 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  43 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  44 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  45 import org.signal.libsignal.metadata.SelfSendException;
  46 import org.signal.storageservice.protos.groups.GroupChange;
  47 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  48 import org.signal.storageservice.protos.groups.local.DecryptedMember;
  49 import org.signal.zkgroup.InvalidInputException;
  50 import org.signal.zkgroup.VerificationFailedException;
  51 import org.signal.zkgroup.auth.AuthCredentialResponse;
  52 import org.signal.zkgroup.groups.GroupMasterKey;
  53 import org.signal.zkgroup.groups.GroupSecretParams;
  54 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  55 import org.signal.zkgroup.profiles.ProfileKey;
  56 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  57 import org.whispersystems.libsignal.IdentityKey;
  58 import org.whispersystems.libsignal.IdentityKeyPair;
  59 import org.whispersystems.libsignal.InvalidKeyException;
  60 import org.whispersystems.libsignal.InvalidMessageException;
  61 import org.whispersystems.libsignal.InvalidVersionException;
  62 import org.whispersystems.libsignal.ecc.Curve;
  63 import org.whispersystems.libsignal.ecc.ECKeyPair;
  64 import org.whispersystems.libsignal.ecc.ECPublicKey;
  65 import org.whispersystems.libsignal.state.PreKeyRecord;
  66 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  67 import org.whispersystems.libsignal.util.KeyHelper;
  68 import org.whispersystems.libsignal.util.Medium;
  69 import org.whispersystems.libsignal.util.Pair;
  70 import org.whispersystems.libsignal.util.guava.Optional;
  71 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  72 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  73 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  74 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  75 import org.whispersystems.signalservice.api.crypto.InvalidCiphertextException;
  76 import org.whispersystems.signalservice.api.crypto.ProfileCipher;
  77 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  78 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
  79 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  80 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  81 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
  82 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  83 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  84 import org.whispersystems.signalservice.api.groupsv2.InvalidGroupStateException;
  85 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  86 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  87 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  88 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
  89 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
  90 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
  91 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  92 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
  93 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
  94 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
  95 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
  96 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload;
  97 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload.StickerInfo;
  98 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
  99 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 100 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 101 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 102 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 103 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 104 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 105 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 106 import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
 107 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 108 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 109 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 110 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 111 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 112 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 113 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 114 import org.whispersystems.signalservice.api.push.ContactTokenDetails;
 115 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 116 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 117 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 118 import org.whispersystems.signalservice.api.util.SleepTimer;
 119 import org.whispersystems.signalservice.api.util.StreamDetails;
 120 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 121 import org.whispersystems.signalservice.api.util.UuidUtil;
 122 import org.whispersystems.signalservice.internal.configuration.SignalServiceConfiguration;
 123 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 124 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 125 import org.whispersystems.signalservice.internal.push.VerifyAccountResponse;
 126 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 127 import org.whispersystems.signalservice.internal.util.Hex;
 128 import org.whispersystems.util.Base64;
 129
 130 import java.io.Closeable;
 131 import java.io.File;
 132 import java.io.FileInputStream;
 133 import java.io.FileNotFoundException;
 134 import java.io.FileOutputStream;
 135 import java.io.IOException;
 136 import java.io.InputStream;
 137 import java.io.OutputStream;
 138 import java.net.URI;
 139 import java.net.URISyntaxException;
 140 import java.net.URLEncoder;
 141 import java.nio.charset.StandardCharsets;
 142 import java.nio.file.Files;
 143 import java.nio.file.Paths;
 144 import java.nio.file.StandardCopyOption;
 145 import java.util.ArrayList;
 146 import java.util.Arrays;
 147 import java.util.Collection;
 148 import java.util.Collections;
 149 import java.util.Date;
 150 import java.util.HashMap;
 151 import java.util.HashSet;
 152 import java.util.List;
 153 import java.util.Locale;
 154 import java.util.Objects;
 155 import java.util.Set;
 156 import java.util.UUID;
 157 import java.util.concurrent.ExecutorService;
 158 import java.util.concurrent.TimeUnit;
 159 import java.util.concurrent.TimeoutException;
 160 import java.util.stream.Collectors;
 161 import java.util.zip.ZipEntry;
 162 import java.util.zip.ZipFile;
 163
 164 import static org.asamk.signal.manager.ServiceConfig.capabilities;
 165
 166 public class Manager implements Closeable {
 167
 168     private final SleepTimer timer = new UptimeSleepTimer();
 169
 170     private final SignalServiceConfiguration serviceConfiguration;
 171     private final String userAgent;
 172     private final boolean discoverableByPhoneNumber = true;
 173     private final boolean unrestrictedUnidentifiedAccess = false;
 174
 175     private final SignalAccount account;
 176     private final PathConfig pathConfig;
 177     private SignalServiceAccountManager accountManager;
 178     private GroupsV2Api groupsV2Api;
 179     private final GroupsV2Operations groupsV2Operations;
 180
 181     private SignalServiceMessageReceiver messageReceiver = null;
 182     private SignalServiceMessagePipe messagePipe = null;
 183     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 184
 185     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 186     private final ProfileHelper profileHelper;
 187     private final GroupHelper groupHelper;
 188
 189     public Manager(
 190             SignalAccount account,
 191             PathConfig pathConfig,
 192             SignalServiceConfiguration serviceConfiguration,
 193             String userAgent
 194     ) {
 195         this.account = account;
 196         this.pathConfig = pathConfig;
 197         this.serviceConfiguration = serviceConfiguration;
 198         this.userAgent = userAgent;
 199         this.groupsV2Operations = capabilities.isGv2() ? new GroupsV2Operations(ClientZkOperations.create(
 200                 serviceConfiguration)) : null;
 201         this.accountManager = createSignalServiceAccountManager();
 202         this.groupsV2Api = accountManager.getGroupsV2Api();
 203
 204         this.account.setResolver(this::resolveSignalServiceAddress);
 205
 206         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 207                 account.getProfileStore()::getProfileKey,
 208                 this::getRecipientProfile,
 209                 this::getSenderCertificate);
 210         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 211                 unidentifiedAccessHelper::getAccessFor,
 212                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 213                 this::getOrCreateMessageReceiver);
 214         this.groupHelper = new GroupHelper(this::getRecipientProfileKeyCredential,
 215                 this::getRecipientProfile,
 216                 account::getSelfAddress,
 217                 groupsV2Operations,
 218                 groupsV2Api,
 219                 this::getGroupAuthForToday);
 220     }
 221
 222     public String getUsername() {
 223         return account.getUsername();
 224     }
 225
 226     public SignalServiceAddress getSelfAddress() {
 227         return account.getSelfAddress();
 228     }
 229
 230     private SignalServiceAccountManager createSignalServiceAccountManager() {
 231         return new SignalServiceAccountManager(serviceConfiguration,
 232                 new DynamicCredentialsProvider(account.getUuid(),
 233                         account.getUsername(),
 234                         account.getPassword(),
 235                         null,
 236                         account.getDeviceId()),
 237                 userAgent,
 238                 groupsV2Operations,
 239                 timer);
 240     }
 241
 242     private IdentityKeyPair getIdentityKeyPair() {
 243         return account.getSignalProtocolStore().getIdentityKeyPair();
 244     }
 245
 246     public int getDeviceId() {
 247         return account.getDeviceId();
 248     }
 249
 250     private String getMessageCachePath() {
 251         return pathConfig.getDataPath() + "/" + account.getUsername() + ".d/msg-cache";
 252     }
 253
 254     private String getMessageCachePath(String sender) {
 255         if (sender == null || sender.isEmpty()) {
 256             return getMessageCachePath();
 257         }
 258
 259         return getMessageCachePath() + "/" + sender.replace("/", "_");
 260     }
 261
 262     private File getMessageCacheFile(String sender, long now, long timestamp) throws IOException {
 263         String cachePath = getMessageCachePath(sender);
 264         IOUtils.createPrivateDirectories(cachePath);
 265         return new File(cachePath + "/" + now + "_" + timestamp);
 266     }
 267
 268     public static Manager init(
 269             String username, String settingsPath, SignalServiceConfiguration serviceConfiguration, String userAgent
 270     ) throws IOException {
 271         PathConfig pathConfig = PathConfig.createDefault(settingsPath);
 272
 273         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 274             IdentityKeyPair identityKey = KeyHelper.generateIdentityKeyPair();
 275             int registrationId = KeyHelper.generateRegistrationId(false);
 276
 277             ProfileKey profileKey = KeyUtils.createProfileKey();
 278             SignalAccount account = SignalAccount.create(pathConfig.getDataPath(),
 279                     username,
 280                     identityKey,
 281                     registrationId,
 282                     profileKey);
 283             account.save();
 284
 285             return new Manager(account, pathConfig, serviceConfiguration, userAgent);
 286         }
 287
 288         SignalAccount account = SignalAccount.load(pathConfig.getDataPath(), username);
 289
 290         Manager m = new Manager(account, pathConfig, serviceConfiguration, userAgent);
 291
 292         m.migrateLegacyConfigs();
 293
 294         return m;
 295     }
 296
 297     private void migrateLegacyConfigs() {
 298         if (account.getProfileKey() == null && isRegistered()) {
 299             // Old config file, creating new profile key
 300             account.setProfileKey(KeyUtils.createProfileKey());
 301             account.save();
 302         }
 303         // Store profile keys only in profile store
 304         for (ContactInfo contact : account.getContactStore().getContacts()) {
 305             String profileKeyString = contact.profileKey;
 306             if (profileKeyString == null) {
 307                 continue;
 308             }
 309             final ProfileKey profileKey;
 310             try {
 311                 profileKey = new ProfileKey(Base64.decode(profileKeyString));
 312             } catch (InvalidInputException | IOException e) {
 313                 continue;
 314             }
 315             contact.profileKey = null;
 316             account.getProfileStore().storeProfileKey(contact.getAddress(), profileKey);
 317         }
 318     }
 319
 320     public void checkAccountState() throws IOException {
 321         if (account.isRegistered()) {
 322             if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 323                 refreshPreKeys();
 324                 account.save();
 325             }
 326             if (account.getUuid() == null) {
 327                 account.setUuid(accountManager.getOwnUuid());
 328                 account.save();
 329             }
 330             updateAccountAttributes();
 331         }
 332     }
 333
 334     public boolean isRegistered() {
 335         return account.isRegistered();
 336     }
 337
 338     public void register(boolean voiceVerification, String captcha) throws IOException {
 339         account.setPassword(KeyUtils.createPassword());
 340
 341         // Resetting UUID, because registering doesn't work otherwise
 342         account.setUuid(null);
 343         accountManager = createSignalServiceAccountManager();
 344         this.groupsV2Api = accountManager.getGroupsV2Api();
 345
 346         if (voiceVerification) {
 347             accountManager.requestVoiceVerificationCode(Locale.getDefault(),
 348                     Optional.fromNullable(captcha),
 349                     Optional.absent());
 350         } else {
 351             accountManager.requestSmsVerificationCode(false, Optional.fromNullable(captcha), Optional.absent());
 352         }
 353
 354         account.setRegistered(false);
 355         account.save();
 356     }
 357
 358     public void updateAccountAttributes() throws IOException {
 359         accountManager.setAccountAttributes(account.getSignalingKey(),
 360                 account.getSignalProtocolStore().getLocalRegistrationId(),
 361                 true,
 362                 account.getRegistrationLockPin(),
 363                 account.getRegistrationLock(),
 364                 unidentifiedAccessHelper.getSelfUnidentifiedAccessKey(),
 365                 unrestrictedUnidentifiedAccess,
 366                 capabilities,
 367                 discoverableByPhoneNumber);
 368     }
 369
 370     public void setProfile(String name, File avatar) throws IOException {
 371         try (final StreamDetails streamDetails = avatar == null ? null : Utils.createStreamDetailsFromFile(avatar)) {
 372             accountManager.setVersionedProfile(account.getUuid(), account.getProfileKey(), name, streamDetails);
 373         }
 374     }
 375
 376     public void unregister() throws IOException {
 377         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 378         // If this is the master device, other users can't send messages to this number anymore.
 379         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 380         accountManager.setGcmId(Optional.absent());
 381
 382         account.setRegistered(false);
 383         account.save();
 384     }
 385
 386     public List<DeviceInfo> getLinkedDevices() throws IOException {
 387         List<DeviceInfo> devices = accountManager.getDevices();
 388         account.setMultiDevice(devices.size() > 1);
 389         account.save();
 390         return devices;
 391     }
 392
 393     public void removeLinkedDevices(int deviceId) throws IOException {
 394         accountManager.removeDevice(deviceId);
 395         List<DeviceInfo> devices = accountManager.getDevices();
 396         account.setMultiDevice(devices.size() > 1);
 397         account.save();
 398     }
 399
 400     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 401         Utils.DeviceLinkInfo info = Utils.parseDeviceLinkUri(linkUri);
 402
 403         addDevice(info.deviceIdentifier, info.deviceKey);
 404     }
 405
 406     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 407         IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 408         String verificationCode = accountManager.getNewDeviceVerificationCode();
 409
 410         accountManager.addDevice(deviceIdentifier,
 411                 deviceKey,
 412                 identityKeyPair,
 413                 Optional.of(account.getProfileKey().serialize()),
 414                 verificationCode);
 415         account.setMultiDevice(true);
 416         account.save();
 417     }
 418
 419     private List<PreKeyRecord> generatePreKeys() {
 420         List<PreKeyRecord> records = new ArrayList<>(ServiceConfig.PREKEY_BATCH_SIZE);
 421
 422         final int offset = account.getPreKeyIdOffset();
 423         for (int i = 0; i < ServiceConfig.PREKEY_BATCH_SIZE; i++) {
 424             int preKeyId = (offset + i) % Medium.MAX_VALUE;
 425             ECKeyPair keyPair = Curve.generateKeyPair();
 426             PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);
 427
 428             records.add(record);
 429         }
 430
 431         account.addPreKeys(records);
 432         account.save();
 433
 434         return records;
 435     }
 436
 437     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 438         try {
 439             ECKeyPair keyPair = Curve.generateKeyPair();
 440             byte[] signature = Curve.calculateSignature(identityKeyPair.getPrivateKey(),
 441                     keyPair.getPublicKey().serialize());
 442             SignedPreKeyRecord record = new SignedPreKeyRecord(account.getNextSignedPreKeyId(),
 443                     System.currentTimeMillis(),
 444                     keyPair,
 445                     signature);
 446
 447             account.addSignedPreKey(record);
 448             account.save();
 449
 450             return record;
 451         } catch (InvalidKeyException e) {
 452             throw new AssertionError(e);
 453         }
 454     }
 455
 456     public void verifyAccount(String verificationCode, String pin) throws IOException {
 457         verificationCode = verificationCode.replace("-", "");
 458         account.setSignalingKey(KeyUtils.createSignalingKey());
 459         // TODO make unrestricted unidentified access configurable
 460         VerifyAccountResponse response = accountManager.verifyAccountWithCode(verificationCode,
 461                 account.getSignalingKey(),
 462                 account.getSignalProtocolStore().getLocalRegistrationId(),
 463                 true,
 464                 pin,
 465                 null,
 466                 unidentifiedAccessHelper.getSelfUnidentifiedAccessKey(),
 467                 unrestrictedUnidentifiedAccess,
 468                 capabilities,
 469                 discoverableByPhoneNumber);
 470
 471         UUID uuid = UuidUtil.parseOrNull(response.getUuid());
 472         // TODO response.isStorageCapable()
 473         //accountManager.setGcmId(Optional.of(GoogleCloudMessaging.getInstance(this).register(REGISTRATION_ID)));
 474         account.setRegistered(true);
 475         account.setUuid(uuid);
 476         account.setRegistrationLockPin(pin);
 477         account.getSignalProtocolStore()
 478                 .saveIdentity(account.getSelfAddress(),
 479                         getIdentityKeyPair().getPublicKey(),
 480                         TrustLevel.TRUSTED_VERIFIED);
 481
 482         refreshPreKeys();
 483         account.save();
 484     }
 485
 486     public void setRegistrationLockPin(Optional<String> pin) throws IOException {
 487         if (pin.isPresent()) {
 488             account.setRegistrationLockPin(pin.get());
 489             throw new RuntimeException("Not implemented anymore, will be replaced with KBS");
 490         } else {
 491             account.setRegistrationLockPin(null);
 492             accountManager.removeRegistrationLockV1();
 493         }
 494         account.save();
 495     }
 496
 497     void refreshPreKeys() throws IOException {
 498         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 499         final IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 500         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 501
 502         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 503     }
 504
 505     private SignalServiceMessageReceiver createMessageReceiver() {
 506         final ClientZkProfileOperations clientZkProfileOperations = capabilities.isGv2() ? ClientZkOperations.create(
 507                 serviceConfiguration).getProfileOperations() : null;
 508         return new SignalServiceMessageReceiver(serviceConfiguration,
 509                 account.getUuid(),
 510                 account.getUsername(),
 511                 account.getPassword(),
 512                 account.getDeviceId(),
 513                 account.getSignalingKey(),
 514                 userAgent,
 515                 null,
 516                 timer,
 517                 clientZkProfileOperations);
 518     }
 519
 520     private SignalServiceMessageReceiver getOrCreateMessageReceiver() {
 521         if (messageReceiver == null) {
 522             messageReceiver = createMessageReceiver();
 523         }
 524         return messageReceiver;
 525     }
 526
 527     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 528         if (messagePipe == null) {
 529             messagePipe = getOrCreateMessageReceiver().createMessagePipe();
 530         }
 531         return messagePipe;
 532     }
 533
 534     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 535         if (unidentifiedMessagePipe == null) {
 536             unidentifiedMessagePipe = getOrCreateMessageReceiver().createUnidentifiedMessagePipe();
 537         }
 538         return unidentifiedMessagePipe;
 539     }
 540
 541     private SignalServiceMessageSender createMessageSender() {
 542         final ClientZkProfileOperations clientZkProfileOperations = capabilities.isGv2() ? ClientZkOperations.create(
 543                 serviceConfiguration).getProfileOperations() : null;
 544         final ExecutorService executor = null;
 545         return new SignalServiceMessageSender(serviceConfiguration,
 546                 account.getUuid(),
 547                 account.getUsername(),
 548                 account.getPassword(),
 549                 account.getDeviceId(),
 550                 account.getSignalProtocolStore(),
 551                 userAgent,
 552                 account.isMultiDevice(),
 553                 Optional.fromNullable(messagePipe),
 554                 Optional.fromNullable(unidentifiedMessagePipe),
 555                 Optional.absent(),
 556                 clientZkProfileOperations,
 557                 executor,
 558                 ServiceConfig.MAX_ENVELOPE_SIZE);
 559     }
 560
 561     private SignalServiceProfile getEncryptedRecipientProfile(SignalServiceAddress address) throws IOException {
 562         return profileHelper.retrieveProfileSync(address, SignalServiceProfile.RequestType.PROFILE).getProfile();
 563     }
 564
 565     private SignalProfile getRecipientProfile(
 566             SignalServiceAddress address
 567     ) {
 568         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
 569         if (profileEntry == null) {
 570             return null;
 571         }
 572         long now = new Date().getTime();
 573         // Profiles are cache for 24h before retrieving them again
 574         if (!profileEntry.isRequestPending() && (
 575                 profileEntry.getProfile() == null || now - profileEntry.getLastUpdateTimestamp() > 24 * 60 * 60 * 1000
 576         )) {
 577             ProfileKey profileKey = profileEntry.getProfileKey();
 578             profileEntry.setRequestPending(true);
 579             SignalProfile profile;
 580             try {
 581                 profile = retrieveRecipientProfile(address, profileKey);
 582             } catch (IOException e) {
 583                 System.err.println("Failed to retrieve profile, ignoring: " + e.getMessage());
 584                 profileEntry.setRequestPending(false);
 585                 return null;
 586             }
 587             profileEntry.setRequestPending(false);
 588             account.getProfileStore()
 589                     .updateProfile(address, profileKey, now, profile, profileEntry.getProfileKeyCredential());
 590             return profile;
 591         }
 592         return profileEntry.getProfile();
 593     }
 594
 595     private ProfileKeyCredential getRecipientProfileKeyCredential(SignalServiceAddress address) {
 596         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
 597         if (profileEntry == null) {
 598             return null;
 599         }
 600         if (profileEntry.getProfileKeyCredential() == null) {
 601             ProfileAndCredential profileAndCredential;
 602             try {
 603                 profileAndCredential = profileHelper.retrieveProfileSync(address,
 604                         SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 605             } catch (IOException e) {
 606                 System.err.println("Failed to retrieve profile key credential, ignoring: " + e.getMessage());
 607                 return null;
 608             }
 609
 610             long now = new Date().getTime();
 611             final ProfileKeyCredential profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 612             final SignalProfile profile = decryptProfile(address,
 613                     profileEntry.getProfileKey(),
 614                     profileAndCredential.getProfile());
 615             account.getProfileStore()
 616                     .updateProfile(address, profileEntry.getProfileKey(), now, profile, profileKeyCredential);
 617             return profileKeyCredential;
 618         }
 619         return profileEntry.getProfileKeyCredential();
 620     }
 621
 622     private SignalProfile retrieveRecipientProfile(
 623             SignalServiceAddress address, ProfileKey profileKey
 624     ) throws IOException {
 625         final SignalServiceProfile encryptedProfile = getEncryptedRecipientProfile(address);
 626
 627         return decryptProfile(address, profileKey, encryptedProfile);
 628     }
 629
 630     private SignalProfile decryptProfile(
 631             final SignalServiceAddress address, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 632     ) {
 633         File avatarFile = null;
 634         try {
 635             avatarFile = encryptedProfile.getAvatar() == null
 636                     ? null
 637                     : retrieveProfileAvatar(address, encryptedProfile.getAvatar(), profileKey);
 638         } catch (Throwable e) {
 639             System.err.println("Failed to retrieve profile avatar, ignoring: " + e.getMessage());
 640         }
 641
 642         ProfileCipher profileCipher = new ProfileCipher(profileKey);
 643         try {
 644             String name;
 645             try {
 646                 name = encryptedProfile.getName() == null
 647                         ? null
 648                         : new String(profileCipher.decryptName(Base64.decode(encryptedProfile.getName())));
 649             } catch (IOException e) {
 650                 name = null;
 651             }
 652             String unidentifiedAccess;
 653             try {
 654                 unidentifiedAccess = encryptedProfile.getUnidentifiedAccess() == null
 655                         || !profileCipher.verifyUnidentifiedAccess(Base64.decode(encryptedProfile.getUnidentifiedAccess()))
 656                         ? null
 657                         : encryptedProfile.getUnidentifiedAccess();
 658             } catch (IOException e) {
 659                 unidentifiedAccess = null;
 660             }
 661             return new SignalProfile(encryptedProfile.getIdentityKey(),
 662                     name,
 663                     avatarFile,
 664                     unidentifiedAccess,
 665                     encryptedProfile.isUnrestrictedUnidentifiedAccess(),
 666                     encryptedProfile.getCapabilities());
 667         } catch (InvalidCiphertextException e) {
 668             return null;
 669         }
 670     }
 671
 672     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(byte[] groupId) throws IOException {
 673         File file = getGroupAvatarFile(groupId);
 674         if (!file.exists()) {
 675             return Optional.absent();
 676         }
 677
 678         return Optional.of(Utils.createAttachment(file));
 679     }
 680
 681     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(String number) throws IOException {
 682         File file = getContactAvatarFile(number);
 683         if (!file.exists()) {
 684             return Optional.absent();
 685         }
 686
 687         return Optional.of(Utils.createAttachment(file));
 688     }
 689
 690     private GroupInfo getGroupForSending(byte[] groupId) throws GroupNotFoundException, NotAGroupMemberException {
 691         GroupInfo g = account.getGroupStore().getGroup(groupId);
 692         if (g == null) {
 693             throw new GroupNotFoundException(groupId);
 694         }
 695         if (!g.isMember(account.getSelfAddress())) {
 696             throw new NotAGroupMemberException(groupId, g.getTitle());
 697         }
 698         return g;
 699     }
 700
 701     public List<GroupInfo> getGroups() {
 702         return account.getGroupStore().getGroups();
 703     }
 704
 705     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 706             SignalServiceDataMessage.Builder messageBuilder, byte[] groupId
 707     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 708         final GroupInfo g = getGroupForSending(groupId);
 709
 710         GroupUtils.setGroupContext(messageBuilder, g);
 711         messageBuilder.withExpiration(g.getMessageExpirationTime());
 712
 713         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 714     }
 715
 716     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 717             String messageText, List<String> attachments, byte[] groupId
 718     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 719         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 720                 .withBody(messageText);
 721         if (attachments != null) {
 722             messageBuilder.withAttachments(Utils.getSignalServiceAttachments(attachments));
 723         }
 724
 725         return sendGroupMessage(messageBuilder, groupId);
 726     }
 727
 728     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 729             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, byte[] groupId
 730     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 731         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
 732                 remove,
 733                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
 734                 targetSentTimestamp);
 735         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 736                 .withReaction(reaction);
 737
 738         return sendGroupMessage(messageBuilder, groupId);
 739     }
 740
 741     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(byte[] groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 742
 743         SignalServiceDataMessage.Builder messageBuilder;
 744
 745         final GroupInfo g = getGroupForSending(groupId);
 746         if (g instanceof GroupInfoV1) {
 747             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
 748             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 749                     .withId(groupId)
 750                     .build();
 751             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 752             groupInfoV1.removeMember(account.getSelfAddress());
 753             account.getGroupStore().updateGroup(groupInfoV1);
 754         } else {
 755             final GroupInfoV2 groupInfoV2 = (GroupInfoV2) g;
 756             final Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.leaveGroup(groupInfoV2);
 757             groupInfoV2.setGroup(groupGroupChangePair.first());
 758             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 759             account.getGroupStore().updateGroup(groupInfoV2);
 760         }
 761
 762         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 763     }
 764
 765     private Pair<byte[], List<SendMessageResult>> sendUpdateGroupMessage(
 766             byte[] groupId, String name, Collection<SignalServiceAddress> members, String avatarFile
 767     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 768         GroupInfo g;
 769         SignalServiceDataMessage.Builder messageBuilder;
 770         if (groupId == null) {
 771             // Create new group
 772             GroupInfoV2 gv2 = groupHelper.createGroupV2(name, members, avatarFile);
 773             if (gv2 == null) {
 774                 GroupInfoV1 gv1 = new GroupInfoV1(KeyUtils.createGroupId());
 775                 gv1.addMembers(Collections.singleton(account.getSelfAddress()));
 776                 updateGroupV1(gv1, name, members, avatarFile);
 777                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 778                 g = gv1;
 779             } else {
 780                 messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 781                 g = gv2;
 782             }
 783         } else {
 784             GroupInfo group = getGroupForSending(groupId);
 785             if (group instanceof GroupInfoV2) {
 786                 Pair<DecryptedGroup, GroupChange> groupGroupChangePair = null;
 787                 if (members != null) {
 788                     final Set<SignalServiceAddress> newMembers = new HashSet<>(members);
 789                     newMembers.removeAll(group.getMembers());
 790                     if (newMembers.size() > 0) {
 791                         groupGroupChangePair = groupHelper.updateGroupV2((GroupInfoV2) group, newMembers);
 792                     }
 793                 }
 794                 if (groupGroupChangePair == null || name != null || avatarFile != null) {
 795                     if (groupGroupChangePair != null) {
 796                         ((GroupInfoV2) group).setGroup(groupGroupChangePair.first());
 797                         messageBuilder = getGroupUpdateMessageBuilder((GroupInfoV2) group,
 798                                 groupGroupChangePair.second().toByteArray());
 799                         sendMessage(messageBuilder, group.getMembersWithout(account.getSelfAddress()));
 800                     }
 801
 802                     groupGroupChangePair = groupHelper.updateGroupV2((GroupInfoV2) group, name, avatarFile);
 803                 }
 804
 805                 ((GroupInfoV2) group).setGroup(groupGroupChangePair.first());
 806                 messageBuilder = getGroupUpdateMessageBuilder((GroupInfoV2) group,
 807                         groupGroupChangePair.second().toByteArray());
 808                 g = group;
 809             } else {
 810                 GroupInfoV1 gv1 = (GroupInfoV1) group;
 811                 updateGroupV1(gv1, name, members, avatarFile);
 812                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 813                 g = gv1;
 814             }
 815         }
 816
 817         account.getGroupStore().updateGroup(g);
 818
 819         final Pair<Long, List<SendMessageResult>> result = sendMessage(messageBuilder,
 820                 g.getMembersWithout(account.getSelfAddress()));
 821         return new Pair<>(g.groupId, result.second());
 822     }
 823
 824     private void updateGroupV1(
 825             final GroupInfoV1 g,
 826             final String name,
 827             final Collection<SignalServiceAddress> members,
 828             final String avatarFile
 829     ) throws IOException {
 830         if (name != null) {
 831             g.name = name;
 832         }
 833
 834         if (members != null) {
 835             final Set<String> newE164Members = new HashSet<>();
 836             for (SignalServiceAddress member : members) {
 837                 if (g.isMember(member) || !member.getNumber().isPresent()) {
 838                     continue;
 839                 }
 840                 newE164Members.add(member.getNumber().get());
 841             }
 842
 843             final List<ContactTokenDetails> contacts = accountManager.getContacts(newE164Members);
 844             if (contacts.size() != newE164Members.size()) {
 845                 // Some of the new members are not registered on Signal
 846                 for (ContactTokenDetails contact : contacts) {
 847                     newE164Members.remove(contact.getNumber());
 848                 }
 849                 throw new IOException("Failed to add members "
 850                         + Util.join(", ", newE164Members)
 851                         + " to group: Not registered on Signal");
 852             }
 853
 854             g.addMembers(members);
 855         }
 856
 857         if (avatarFile != null) {
 858             IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
 859             File aFile = getGroupAvatarFile(g.groupId);
 860             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 861         }
 862     }
 863
 864     Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 865             byte[] groupId, SignalServiceAddress recipient
 866     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 867         GroupInfoV1 g;
 868         GroupInfo group = getGroupForSending(groupId);
 869         if (!(group instanceof GroupInfoV1)) {
 870             throw new RuntimeException("Received an invalid group request for a v2 group!");
 871         }
 872         g = (GroupInfoV1) group;
 873
 874         if (!g.isMember(recipient)) {
 875             throw new NotAGroupMemberException(groupId, g.name);
 876         }
 877
 878         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 879
 880         // Send group message only to the recipient who requested it
 881         return sendMessage(messageBuilder, Collections.singleton(recipient));
 882     }
 883
 884     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 885         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 886                 .withId(g.groupId)
 887                 .withName(g.name)
 888                 .withMembers(new ArrayList<>(g.getMembers()));
 889
 890         File aFile = getGroupAvatarFile(g.groupId);
 891         if (aFile.exists()) {
 892             try {
 893                 group.withAvatar(Utils.createAttachment(aFile));
 894             } catch (IOException e) {
 895                 throw new AttachmentInvalidException(aFile.toString(), e);
 896             }
 897         }
 898
 899         return SignalServiceDataMessage.newBuilder()
 900                 .asGroupMessage(group.build())
 901                 .withExpiration(g.getMessageExpirationTime());
 902     }
 903
 904     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
 905         SignalServiceGroupV2.Builder group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
 906                 .withRevision(g.getGroup().getRevision())
 907                 .withSignedGroupChange(signedGroupChange);
 908         return SignalServiceDataMessage.newBuilder()
 909                 .asGroupMessage(group.build())
 910                 .withExpiration(g.getMessageExpirationTime());
 911     }
 912
 913     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
 914             byte[] groupId, SignalServiceAddress recipient
 915     ) throws IOException {
 916         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 917                 .withId(groupId);
 918
 919         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 920                 .asGroupMessage(group.build());
 921
 922         // Send group info request message to the recipient who sent us a message with this groupId
 923         return sendMessage(messageBuilder, Collections.singleton(recipient));
 924     }
 925
 926     void sendReceipt(
 927             SignalServiceAddress remoteAddress, long messageId
 928     ) throws IOException, UntrustedIdentityException {
 929         SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
 930                 Collections.singletonList(messageId),
 931                 System.currentTimeMillis());
 932
 933         createMessageSender().sendReceipt(remoteAddress,
 934                 unidentifiedAccessHelper.getAccessFor(remoteAddress),
 935                 receiptMessage);
 936     }
 937
 938     public Pair<Long, List<SendMessageResult>> sendMessage(
 939             String messageText, List<String> attachments, List<String> recipients
 940     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
 941         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 942                 .withBody(messageText);
 943         if (attachments != null) {
 944             List<SignalServiceAttachment> attachmentStreams = Utils.getSignalServiceAttachments(attachments);
 945
 946             // Upload attachments here, so we only upload once even for multiple recipients
 947             SignalServiceMessageSender messageSender = createMessageSender();
 948             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 949             for (SignalServiceAttachment attachment : attachmentStreams) {
 950                 if (attachment.isStream()) {
 951                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 952                 } else if (attachment.isPointer()) {
 953                     attachmentPointers.add(attachment.asPointer());
 954                 }
 955             }
 956
 957             messageBuilder.withAttachments(attachmentPointers);
 958         }
 959         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
 960     }
 961
 962     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
 963             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
 964     ) throws IOException, InvalidNumberException {
 965         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
 966                 remove,
 967                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
 968                 targetSentTimestamp);
 969         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 970                 .withReaction(reaction);
 971         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
 972     }
 973
 974     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
 975         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
 976
 977         final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
 978         try {
 979             return sendMessage(messageBuilder, signalServiceAddresses);
 980         } catch (Exception e) {
 981             for (SignalServiceAddress address : signalServiceAddresses) {
 982                 handleEndSession(address);
 983             }
 984             account.save();
 985             throw e;
 986         }
 987     }
 988
 989     public String getContactName(String number) throws InvalidNumberException {
 990         ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));
 991         if (contact == null) {
 992             return "";
 993         } else {
 994             return contact.name;
 995         }
 996     }
 997
 998     public void setContactName(String number, String name) throws InvalidNumberException {
 999         final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
1000         ContactInfo contact = account.getContactStore().getContact(address);
1001         if (contact == null) {
1002             contact = new ContactInfo(address);
1003         }
1004         contact.name = name;
1005         account.getContactStore().updateContact(contact);
1006         account.save();
1007     }
1008
1009     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
1010         setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
1011     }
1012
1013     private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
1014         ContactInfo contact = account.getContactStore().getContact(address);
1015         if (contact == null) {
1016             contact = new ContactInfo(address);
1017         }
1018         contact.blocked = blocked;
1019         account.getContactStore().updateContact(contact);
1020         account.save();
1021     }
1022
1023     public void setGroupBlocked(final byte[] groupId, final boolean blocked) throws GroupNotFoundException {
1024         GroupInfo group = getGroup(groupId);
1025         if (group == null) {
1026             throw new GroupNotFoundException(groupId);
1027         }
1028
1029         group.setBlocked(blocked);
1030         account.getGroupStore().updateGroup(group);
1031         account.save();
1032     }
1033
1034     public Pair<byte[], List<SendMessageResult>> updateGroup(
1035             byte[] groupId, String name, List<String> members, String avatar
1036     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
1037         return sendUpdateGroupMessage(groupId,
1038                 name,
1039                 members == null ? null : getSignalServiceAddresses(members),
1040                 avatar);
1041     }
1042
1043     /**
1044      * Change the expiration timer for a contact
1045      */
1046     public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) throws IOException {
1047         ContactInfo contact = account.getContactStore().getContact(address);
1048         contact.messageExpirationTime = messageExpirationTimer;
1049         account.getContactStore().updateContact(contact);
1050         sendExpirationTimerUpdate(address);
1051         account.save();
1052     }
1053
1054     private void sendExpirationTimerUpdate(SignalServiceAddress address) throws IOException {
1055         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1056                 .asExpirationUpdate();
1057         sendMessage(messageBuilder, Collections.singleton(address));
1058     }
1059
1060     /**
1061      * Change the expiration timer for a contact
1062      */
1063     public void setExpirationTimer(
1064             String number, int messageExpirationTimer
1065     ) throws IOException, InvalidNumberException {
1066         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
1067         setExpirationTimer(address, messageExpirationTimer);
1068     }
1069
1070     /**
1071      * Change the expiration timer for a group
1072      */
1073     public void setExpirationTimer(byte[] groupId, int messageExpirationTimer) {
1074         GroupInfo g = account.getGroupStore().getGroup(groupId);
1075         if (g instanceof GroupInfoV1) {
1076             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
1077             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1078             account.getGroupStore().updateGroup(groupInfoV1);
1079         } else {
1080             throw new RuntimeException("TODO Not implemented!");
1081         }
1082     }
1083
1084     /**
1085      * Upload the sticker pack from path.
1086      *
1087      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1088      * @return if successful, returns the URL to install the sticker pack in the signal app
1089      */
1090     public String uploadStickerPack(String path) throws IOException, StickerPackInvalidException {
1091         SignalServiceStickerManifestUpload manifest = getSignalServiceStickerManifestUpload(path);
1092
1093         SignalServiceMessageSender messageSender = createMessageSender();
1094
1095         byte[] packKey = KeyUtils.createStickerUploadKey();
1096         String packId = messageSender.uploadStickerManifest(manifest, packKey);
1097
1098         Sticker sticker = new Sticker(Hex.fromStringCondensed(packId), packKey);
1099         account.getStickerStore().updateSticker(sticker);
1100         account.save();
1101
1102         try {
1103             return new URI("https",
1104                     "signal.art",
1105                     "/addstickers/",
1106                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1107                             Hex.toStringCondensed(packKey),
1108                             StandardCharsets.UTF_8)).toString();
1109         } catch (URISyntaxException e) {
1110             throw new AssertionError(e);
1111         }
1112     }
1113
1114     private SignalServiceStickerManifestUpload getSignalServiceStickerManifestUpload(
1115             final String path
1116     ) throws IOException, StickerPackInvalidException {
1117         ZipFile zip = null;
1118         String rootPath = null;
1119
1120         final File file = new File(path);
1121         if (file.getName().endsWith(".zip")) {
1122             zip = new ZipFile(file);
1123         } else if (file.getName().equals("manifest.json")) {
1124             rootPath = file.getParent();
1125         } else {
1126             throw new StickerPackInvalidException("Could not find manifest.json");
1127         }
1128
1129         JsonStickerPack pack = parseStickerPack(rootPath, zip);
1130
1131         if (pack.stickers == null) {
1132             throw new StickerPackInvalidException("Must set a 'stickers' field.");
1133         }
1134
1135         if (pack.stickers.isEmpty()) {
1136             throw new StickerPackInvalidException("Must include stickers.");
1137         }
1138
1139         List<StickerInfo> stickers = new ArrayList<>(pack.stickers.size());
1140         for (JsonStickerPack.JsonSticker sticker : pack.stickers) {
1141             if (sticker.file == null) {
1142                 throw new StickerPackInvalidException("Must set a 'file' field on each sticker.");
1143             }
1144
1145             Pair<InputStream, Long> data;
1146             try {
1147                 data = getInputStreamAndLength(rootPath, zip, sticker.file);
1148             } catch (IOException ignored) {
1149                 throw new StickerPackInvalidException("Could not find find " + sticker.file);
1150             }
1151
1152             String contentType = Utils.getFileMimeType(new File(sticker.file), null);
1153             StickerInfo stickerInfo = new StickerInfo(data.first(),
1154                     data.second(),
1155                     Optional.fromNullable(sticker.emoji).or(""),
1156                     contentType);
1157             stickers.add(stickerInfo);
1158         }
1159
1160         StickerInfo cover = null;
1161         if (pack.cover != null) {
1162             if (pack.cover.file == null) {
1163                 throw new StickerPackInvalidException("Must set a 'file' field on the cover.");
1164             }
1165
1166             Pair<InputStream, Long> data;
1167             try {
1168                 data = getInputStreamAndLength(rootPath, zip, pack.cover.file);
1169             } catch (IOException ignored) {
1170                 throw new StickerPackInvalidException("Could not find find " + pack.cover.file);
1171             }
1172
1173             String contentType = Utils.getFileMimeType(new File(pack.cover.file), null);
1174             cover = new StickerInfo(data.first(),
1175                     data.second(),
1176                     Optional.fromNullable(pack.cover.emoji).or(""),
1177                     contentType);
1178         }
1179
1180         return new SignalServiceStickerManifestUpload(pack.title, pack.author, cover, stickers);
1181     }
1182
1183     private static JsonStickerPack parseStickerPack(String rootPath, ZipFile zip) throws IOException {
1184         InputStream inputStream;
1185         if (zip != null) {
1186             inputStream = zip.getInputStream(zip.getEntry("manifest.json"));
1187         } else {
1188             inputStream = new FileInputStream((new File(rootPath, "manifest.json")));
1189         }
1190         return new ObjectMapper().readValue(inputStream, JsonStickerPack.class);
1191     }
1192
1193     private static Pair<InputStream, Long> getInputStreamAndLength(
1194             final String rootPath, final ZipFile zip, final String subfile
1195     ) throws IOException {
1196         if (zip != null) {
1197             final ZipEntry entry = zip.getEntry(subfile);
1198             return new Pair<>(zip.getInputStream(entry), entry.getSize());
1199         } else {
1200             final File file = new File(rootPath, subfile);
1201             return new Pair<>(new FileInputStream(file), file.length());
1202         }
1203     }
1204
1205     void requestSyncGroups() throws IOException {
1206         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1207                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1208                 .build();
1209         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1210         try {
1211             sendSyncMessage(message);
1212         } catch (UntrustedIdentityException e) {
1213             e.printStackTrace();
1214         }
1215     }
1216
1217     void requestSyncContacts() throws IOException {
1218         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1219                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1220                 .build();
1221         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1222         try {
1223             sendSyncMessage(message);
1224         } catch (UntrustedIdentityException e) {
1225             e.printStackTrace();
1226         }
1227     }
1228
1229     void requestSyncBlocked() throws IOException {
1230         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1231                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1232                 .build();
1233         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1234         try {
1235             sendSyncMessage(message);
1236         } catch (UntrustedIdentityException e) {
1237             e.printStackTrace();
1238         }
1239     }
1240
1241     void requestSyncConfiguration() throws IOException {
1242         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1243                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1244                 .build();
1245         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1246         try {
1247             sendSyncMessage(message);
1248         } catch (UntrustedIdentityException e) {
1249             e.printStackTrace();
1250         }
1251     }
1252
1253     private byte[] getSenderCertificate() {
1254         // TODO support UUID capable sender certificates
1255         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1256         byte[] certificate;
1257         try {
1258             certificate = accountManager.getSenderCertificate();
1259         } catch (IOException e) {
1260             System.err.println("Failed to get sender certificate: " + e);
1261             return null;
1262         }
1263         // TODO cache for a day
1264         return certificate;
1265     }
1266
1267     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1268         SignalServiceMessageSender messageSender = createMessageSender();
1269         try {
1270             messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1271         } catch (UntrustedIdentityException e) {
1272             account.getSignalProtocolStore()
1273                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1274                             e.getIdentityKey(),
1275                             TrustLevel.UNTRUSTED);
1276             throw e;
1277         }
1278     }
1279
1280     private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1281         final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
1282
1283         for (String number : numbers) {
1284             signalServiceAddresses.add(canonicalizeAndResolveSignalServiceAddress(number));
1285         }
1286         return signalServiceAddresses;
1287     }
1288
1289     private Pair<Long, List<SendMessageResult>> sendMessage(
1290             SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients
1291     ) throws IOException {
1292         recipients = recipients.stream().map(this::resolveSignalServiceAddress).collect(Collectors.toSet());
1293         final long timestamp = System.currentTimeMillis();
1294         messageBuilder.withTimestamp(timestamp);
1295         getOrCreateMessagePipe();
1296         getOrCreateUnidentifiedMessagePipe();
1297         SignalServiceDataMessage message = null;
1298         try {
1299             message = messageBuilder.build();
1300             if (message.getGroupContext().isPresent()) {
1301                 try {
1302                     SignalServiceMessageSender messageSender = createMessageSender();
1303                     final boolean isRecipientUpdate = false;
1304                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients),
1305                             unidentifiedAccessHelper.getAccessFor(recipients),
1306                             isRecipientUpdate,
1307                             message);
1308                     for (SendMessageResult r : result) {
1309                         if (r.getIdentityFailure() != null) {
1310                             account.getSignalProtocolStore()
1311                                     .saveIdentity(r.getAddress(),
1312                                             r.getIdentityFailure().getIdentityKey(),
1313                                             TrustLevel.UNTRUSTED);
1314                         }
1315                     }
1316                     return new Pair<>(timestamp, result);
1317                 } catch (UntrustedIdentityException e) {
1318                     account.getSignalProtocolStore()
1319                             .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1320                                     e.getIdentityKey(),
1321                                     TrustLevel.UNTRUSTED);
1322                     return new Pair<>(timestamp, Collections.emptyList());
1323                 }
1324             } else {
1325                 // Send to all individually, so sync messages are sent correctly
1326                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1327                 for (SignalServiceAddress address : recipients) {
1328                     ContactInfo contact = account.getContactStore().getContact(address);
1329                     if (contact != null) {
1330                         messageBuilder.withExpiration(contact.messageExpirationTime);
1331                         messageBuilder.withProfileKey(account.getProfileKey().serialize());
1332                     } else {
1333                         messageBuilder.withExpiration(0);
1334                         messageBuilder.withProfileKey(null);
1335                     }
1336                     message = messageBuilder.build();
1337                     if (address.matches(account.getSelfAddress())) {
1338                         results.add(sendSelfMessage(message));
1339                     } else {
1340                         results.add(sendMessage(address, message));
1341                     }
1342                 }
1343                 return new Pair<>(timestamp, results);
1344             }
1345         } finally {
1346             if (message != null && message.isEndSession()) {
1347                 for (SignalServiceAddress recipient : recipients) {
1348                     handleEndSession(recipient);
1349                 }
1350             }
1351             account.save();
1352         }
1353     }
1354
1355     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1356         SignalServiceMessageSender messageSender = createMessageSender();
1357
1358         SignalServiceAddress recipient = account.getSelfAddress();
1359
1360         final Optional<UnidentifiedAccessPair> unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipient);
1361         SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1362                 message.getTimestamp(),
1363                 message,
1364                 message.getExpiresInSeconds(),
1365                 Collections.singletonMap(recipient, unidentifiedAccess.isPresent()),
1366                 false);
1367         SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1368
1369         try {
1370             long startTime = System.currentTimeMillis();
1371             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1372             return SendMessageResult.success(recipient,
1373                     unidentifiedAccess.isPresent(),
1374                     false,
1375                     System.currentTimeMillis() - startTime);
1376         } catch (UntrustedIdentityException e) {
1377             account.getSignalProtocolStore()
1378                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1379                             e.getIdentityKey(),
1380                             TrustLevel.UNTRUSTED);
1381             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1382         }
1383     }
1384
1385     private SendMessageResult sendMessage(
1386             SignalServiceAddress address, SignalServiceDataMessage message
1387     ) throws IOException {
1388         SignalServiceMessageSender messageSender = createMessageSender();
1389
1390         try {
1391             return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(address), message);
1392         } catch (UntrustedIdentityException e) {
1393             account.getSignalProtocolStore()
1394                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1395                             e.getIdentityKey(),
1396                             TrustLevel.UNTRUSTED);
1397             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1398         }
1399     }
1400
1401     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1402         SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(),
1403                 account.getSignalProtocolStore(),
1404                 Utils.getCertificateValidator());
1405         try {
1406             return cipher.decrypt(envelope);
1407         } catch (ProtocolUntrustedIdentityException e) {
1408             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1409                 org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e
1410                         .getCause();
1411                 account.getSignalProtocolStore()
1412                         .saveIdentity(resolveSignalServiceAddress(identityException.getName()),
1413                                 identityException.getUntrustedIdentity(),
1414                                 TrustLevel.UNTRUSTED);
1415                 throw identityException;
1416             }
1417             throw new AssertionError(e);
1418         }
1419     }
1420
1421     private void handleEndSession(SignalServiceAddress source) {
1422         account.getSignalProtocolStore().deleteAllSessions(source);
1423     }
1424
1425     private static int currentTimeDays() {
1426         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
1427     }
1428
1429     private GroupsV2AuthorizationString getGroupAuthForToday(
1430             final GroupSecretParams groupSecretParams
1431     ) throws IOException {
1432         final int today = currentTimeDays();
1433         // Returns credentials for the next 7 days
1434         final HashMap<Integer, AuthCredentialResponse> credentials = groupsV2Api.getCredentials(today);
1435         // TODO cache credentials until they expire
1436         AuthCredentialResponse authCredentialResponse = credentials.get(today);
1437         try {
1438             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
1439                     today,
1440                     groupSecretParams,
1441                     authCredentialResponse);
1442         } catch (VerificationFailedException e) {
1443             throw new IOException(e);
1444         }
1445     }
1446
1447     private List<HandleAction> handleSignalServiceDataMessage(
1448             SignalServiceDataMessage message,
1449             boolean isSync,
1450             SignalServiceAddress source,
1451             SignalServiceAddress destination,
1452             boolean ignoreAttachments
1453     ) {
1454         List<HandleAction> actions = new ArrayList<>();
1455         if (message.getGroupContext().isPresent()) {
1456             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1457                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1458                 GroupInfo group = account.getGroupStore().getGroupByV1Id(groupInfo.getGroupId());
1459                 if (group == null || group instanceof GroupInfoV1) {
1460                     GroupInfoV1 groupV1 = (GroupInfoV1) group;
1461                     switch (groupInfo.getType()) {
1462                         case UPDATE: {
1463                             if (groupV1 == null) {
1464                                 groupV1 = new GroupInfoV1(groupInfo.getGroupId());
1465                             }
1466
1467                             if (groupInfo.getAvatar().isPresent()) {
1468                                 SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1469                                 if (avatar.isPointer()) {
1470                                     try {
1471                                         retrieveGroupAvatarAttachment(avatar.asPointer(), groupV1.groupId);
1472                                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1473                                         System.err.println("Failed to retrieve group avatar (" + avatar.asPointer()
1474                                                 .getRemoteId() + "): " + e.getMessage());
1475                                     }
1476                                 }
1477                             }
1478
1479                             if (groupInfo.getName().isPresent()) {
1480                                 groupV1.name = groupInfo.getName().get();
1481                             }
1482
1483                             if (groupInfo.getMembers().isPresent()) {
1484                                 groupV1.addMembers(groupInfo.getMembers()
1485                                         .get()
1486                                         .stream()
1487                                         .map(this::resolveSignalServiceAddress)
1488                                         .collect(Collectors.toSet()));
1489                             }
1490
1491                             account.getGroupStore().updateGroup(groupV1);
1492                             break;
1493                         }
1494                         case DELIVER:
1495                             if (groupV1 == null && !isSync) {
1496                                 actions.add(new SendGroupInfoRequestAction(source, groupInfo.getGroupId()));
1497                             }
1498                             break;
1499                         case QUIT: {
1500                             if (groupV1 != null) {
1501                                 groupV1.removeMember(source);
1502                                 account.getGroupStore().updateGroup(groupV1);
1503                             }
1504                             break;
1505                         }
1506                         case REQUEST_INFO:
1507                             if (groupV1 != null && !isSync) {
1508                                 actions.add(new SendGroupUpdateAction(source, groupV1.groupId));
1509                             }
1510                             break;
1511                     }
1512                 } else {
1513                     // Received a group v1 message for a v2 group
1514                 }
1515             }
1516             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1517                 final SignalServiceGroupV2 groupContext = message.getGroupContext().get().getGroupV2().get();
1518                 final GroupMasterKey groupMasterKey = groupContext.getMasterKey();
1519
1520                 final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1521
1522                 byte[] groupId = groupSecretParams.getPublicParams().getGroupIdentifier().serialize();
1523                 GroupInfo groupInfo = account.getGroupStore().getGroupByV2Id(groupId);
1524                 if (groupInfo instanceof GroupInfoV1) {
1525                     // Received a v2 group message for a v2 group, we need to locally migrate the group
1526                     account.getGroupStore().deleteGroup(groupInfo.groupId);
1527                     GroupInfoV2 groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1528                     groupInfoV2.setGroup(getDecryptedGroup(groupSecretParams));
1529                     account.getGroupStore().updateGroup(groupInfoV2);
1530                     System.err.println("Locally migrated group "
1531                             + Base64.encodeBytes(groupInfo.groupId)
1532                             + " to group v2, id: "
1533                             + Base64.encodeBytes(groupInfoV2.groupId)
1534                             + " !!!");
1535                 } else if (groupInfo == null || groupInfo instanceof GroupInfoV2) {
1536                     GroupInfoV2 groupInfoV2 = groupInfo == null
1537                             ? new GroupInfoV2(groupId, groupMasterKey)
1538                             : (GroupInfoV2) groupInfo;
1539
1540                     if (groupInfoV2.getGroup() == null
1541                             || groupInfoV2.getGroup().getRevision() < groupContext.getRevision()) {
1542                         DecryptedGroup group = null;
1543                         if (groupContext.hasSignedGroupChange()
1544                                 && groupInfoV2.getGroup() != null
1545                                 && groupInfoV2.getGroup().getRevision() + 1 == groupContext.getRevision()) {
1546                             group = groupHelper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(),
1547                                     groupContext.getSignedGroupChange(),
1548                                     groupMasterKey);
1549                         }
1550                         if (group == null) {
1551                             group = getDecryptedGroup(groupSecretParams);
1552                         }
1553                         groupInfoV2.setGroup(group);
1554                         account.getGroupStore().updateGroup(groupInfoV2);
1555                     }
1556                 }
1557             }
1558         }
1559         final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;
1560         if (message.isEndSession()) {
1561             handleEndSession(conversationPartnerAddress);
1562         }
1563         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1564             if (message.getGroupContext().isPresent()) {
1565                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1566                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1567                     GroupInfoV1 group = account.getGroupStore().getOrCreateGroupV1(groupInfo.getGroupId());
1568                     if (group != null) {
1569                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1570                             group.messageExpirationTime = message.getExpiresInSeconds();
1571                             account.getGroupStore().updateGroup(group);
1572                         }
1573                     }
1574                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1575                     // disappearing message timer already stored in the DecryptedGroup
1576                 }
1577             } else {
1578                 ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
1579                 if (contact == null) {
1580                     contact = new ContactInfo(conversationPartnerAddress);
1581                 }
1582                 if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
1583                     contact.messageExpirationTime = message.getExpiresInSeconds();
1584                     account.getContactStore().updateContact(contact);
1585                 }
1586             }
1587         }
1588         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1589             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1590                 if (attachment.isPointer()) {
1591                     try {
1592                         retrieveAttachment(attachment.asPointer());
1593                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1594                         System.err.println("Failed to retrieve attachment ("
1595                                 + attachment.asPointer().getRemoteId()
1596                                 + "): "
1597                                 + e.getMessage());
1598                     }
1599                 }
1600             }
1601         }
1602         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1603             final ProfileKey profileKey;
1604             try {
1605                 profileKey = new ProfileKey(message.getProfileKey().get());
1606             } catch (InvalidInputException e) {
1607                 throw new AssertionError(e);
1608             }
1609             if (source.matches(account.getSelfAddress())) {
1610                 this.account.setProfileKey(profileKey);
1611             }
1612             this.account.getProfileStore().storeProfileKey(source, profileKey);
1613         }
1614         if (message.getPreviews().isPresent()) {
1615             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1616             for (SignalServiceDataMessage.Preview preview : previews) {
1617                 if (preview.getImage().isPresent() && preview.getImage().get().isPointer()) {
1618                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
1619                     try {
1620                         retrieveAttachment(attachment);
1621                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1622                         System.err.println("Failed to retrieve attachment ("
1623                                 + attachment.getRemoteId()
1624                                 + "): "
1625                                 + e.getMessage());
1626                     }
1627                 }
1628             }
1629         }
1630         if (message.getSticker().isPresent()) {
1631             final SignalServiceDataMessage.Sticker messageSticker = message.getSticker().get();
1632             Sticker sticker = account.getStickerStore().getSticker(messageSticker.getPackId());
1633             if (sticker == null) {
1634                 sticker = new Sticker(messageSticker.getPackId(), messageSticker.getPackKey());
1635                 account.getStickerStore().updateSticker(sticker);
1636             }
1637         }
1638         return actions;
1639     }
1640
1641     private DecryptedGroup getDecryptedGroup(final GroupSecretParams groupSecretParams) {
1642         try {
1643             final GroupsV2AuthorizationString groupsV2AuthorizationString = getGroupAuthForToday(groupSecretParams);
1644             DecryptedGroup group = groupsV2Api.getGroup(groupSecretParams, groupsV2AuthorizationString);
1645             for (DecryptedMember member : group.getMembersList()) {
1646                 final SignalServiceAddress address = resolveSignalServiceAddress(new SignalServiceAddress(UuidUtil.parseOrThrow(
1647                         member.getUuid().toByteArray()), null));
1648                 try {
1649                     account.getProfileStore()
1650                             .storeProfileKey(address, new ProfileKey(member.getProfileKey().toByteArray()));
1651                 } catch (InvalidInputException ignored) {
1652                 }
1653             }
1654             return group;
1655         } catch (IOException | VerificationFailedException | InvalidGroupStateException e) {
1656             System.err.println("Failed to retrieve Group V2 info, ignoring ...");
1657             return null;
1658         }
1659     }
1660
1661     private void retryFailedReceivedMessages(
1662             ReceiveMessageHandler handler, boolean ignoreAttachments
1663     ) {
1664         final File cachePath = new File(getMessageCachePath());
1665         if (!cachePath.exists()) {
1666             return;
1667         }
1668         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
1669             if (!dir.isDirectory()) {
1670                 retryFailedReceivedMessage(handler, ignoreAttachments, dir);
1671                 continue;
1672             }
1673
1674             for (final File fileEntry : Objects.requireNonNull(dir.listFiles())) {
1675                 if (!fileEntry.isFile()) {
1676                     continue;
1677                 }
1678                 retryFailedReceivedMessage(handler, ignoreAttachments, fileEntry);
1679             }
1680             // Try to delete directory if empty
1681             dir.delete();
1682         }
1683     }
1684
1685     private void retryFailedReceivedMessage(
1686             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final File fileEntry
1687     ) {
1688         SignalServiceEnvelope envelope;
1689         try {
1690             envelope = Utils.loadEnvelope(fileEntry);
1691             if (envelope == null) {
1692                 return;
1693             }
1694         } catch (IOException e) {
1695             e.printStackTrace();
1696             return;
1697         }
1698         SignalServiceContent content = null;
1699         if (!envelope.isReceipt()) {
1700             try {
1701                 content = decryptMessage(envelope);
1702             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1703                 return;
1704             } catch (Exception er) {
1705                 // All other errors are not recoverable, so delete the cached message
1706                 try {
1707                     Files.delete(fileEntry.toPath());
1708                 } catch (IOException e) {
1709                     System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1710                 }
1711                 return;
1712             }
1713             List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1714             for (HandleAction action : actions) {
1715                 try {
1716                     action.execute(this);
1717                 } catch (Throwable e) {
1718                     e.printStackTrace();
1719                 }
1720             }
1721         }
1722         account.save();
1723         handler.handleMessage(envelope, content, null);
1724         try {
1725             Files.delete(fileEntry.toPath());
1726         } catch (IOException e) {
1727             System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1728         }
1729     }
1730
1731     public void receiveMessages(
1732             long timeout,
1733             TimeUnit unit,
1734             boolean returnOnTimeout,
1735             boolean ignoreAttachments,
1736             ReceiveMessageHandler handler
1737     ) throws IOException {
1738         retryFailedReceivedMessages(handler, ignoreAttachments);
1739
1740         Set<HandleAction> queuedActions = null;
1741
1742         getOrCreateMessagePipe();
1743
1744         boolean hasCaughtUpWithOldMessages = false;
1745
1746         while (true) {
1747             SignalServiceEnvelope envelope;
1748             SignalServiceContent content = null;
1749             Exception exception = null;
1750             final long now = new Date().getTime();
1751             try {
1752                 Optional<SignalServiceEnvelope> result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1753                     // store message on disk, before acknowledging receipt to the server
1754                     try {
1755                         String source = envelope1.getSourceE164().isPresent() ? envelope1.getSourceE164().get() : "";
1756                         File cacheFile = getMessageCacheFile(source, now, envelope1.getTimestamp());
1757                         Utils.storeEnvelope(envelope1, cacheFile);
1758                     } catch (IOException e) {
1759                         System.err.println("Failed to store encrypted message in disk cache, ignoring: "
1760                                 + e.getMessage());
1761                     }
1762                 });
1763                 if (result.isPresent()) {
1764                     envelope = result.get();
1765                 } else {
1766                     // Received indicator that server queue is empty
1767                     hasCaughtUpWithOldMessages = true;
1768
1769                     if (queuedActions != null) {
1770                         for (HandleAction action : queuedActions) {
1771                             try {
1772                                 action.execute(this);
1773                             } catch (Throwable e) {
1774                                 e.printStackTrace();
1775                             }
1776                         }
1777                         account.save();
1778                         queuedActions.clear();
1779                         queuedActions = null;
1780                     }
1781
1782                     // Continue to wait another timeout for new messages
1783                     continue;
1784                 }
1785             } catch (TimeoutException e) {
1786                 if (returnOnTimeout) return;
1787                 continue;
1788             } catch (InvalidVersionException e) {
1789                 System.err.println("Ignoring error: " + e.getMessage());
1790                 continue;
1791             }
1792
1793             if (envelope.hasSource()) {
1794                 // Store uuid if we don't have it already
1795                 SignalServiceAddress source = envelope.getSourceAddress();
1796                 resolveSignalServiceAddress(source);
1797             }
1798             if (!envelope.isReceipt()) {
1799                 try {
1800                     content = decryptMessage(envelope);
1801                 } catch (Exception e) {
1802                     exception = e;
1803                 }
1804                 List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1805                 if (hasCaughtUpWithOldMessages) {
1806                     for (HandleAction action : actions) {
1807                         try {
1808                             action.execute(this);
1809                         } catch (Throwable e) {
1810                             e.printStackTrace();
1811                         }
1812                     }
1813                 } else {
1814                     if (queuedActions == null) {
1815                         queuedActions = new HashSet<>();
1816                     }
1817                     queuedActions.addAll(actions);
1818                 }
1819             }
1820             account.save();
1821             if (!isMessageBlocked(envelope, content)) {
1822                 handler.handleMessage(envelope, content, exception);
1823             }
1824             if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
1825                 File cacheFile = null;
1826                 try {
1827                     String source = envelope.getSourceE164().isPresent() ? envelope.getSourceE164().get() : "";
1828                     cacheFile = getMessageCacheFile(source, now, envelope.getTimestamp());
1829                     Files.delete(cacheFile.toPath());
1830                     // Try to delete directory if empty
1831                     new File(getMessageCachePath()).delete();
1832                 } catch (IOException e) {
1833                     System.err.println("Failed to delete cached message file “" + cacheFile + "”: " + e.getMessage());
1834                 }
1835             }
1836         }
1837     }
1838
1839     private boolean isMessageBlocked(
1840             SignalServiceEnvelope envelope, SignalServiceContent content
1841     ) {
1842         SignalServiceAddress source;
1843         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1844             source = envelope.getSourceAddress();
1845         } else if (content != null) {
1846             source = content.getSender();
1847         } else {
1848             return false;
1849         }
1850         ContactInfo sourceContact = account.getContactStore().getContact(source);
1851         if (sourceContact != null && sourceContact.blocked) {
1852             return true;
1853         }
1854
1855         if (content != null && content.getDataMessage().isPresent()) {
1856             SignalServiceDataMessage message = content.getDataMessage().get();
1857             if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1858                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1859                 GroupInfo group = getGroup(groupInfo.getGroupId());
1860                 return groupInfo.getType() == SignalServiceGroup.Type.DELIVER && group != null && group.isBlocked();
1861             }
1862         }
1863         return false;
1864     }
1865
1866     private List<HandleAction> handleMessage(
1867             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
1868     ) {
1869         List<HandleAction> actions = new ArrayList<>();
1870         if (content != null) {
1871             final SignalServiceAddress sender;
1872             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1873                 sender = envelope.getSourceAddress();
1874             } else {
1875                 sender = content.getSender();
1876             }
1877             // Store uuid if we don't have it already
1878             resolveSignalServiceAddress(sender);
1879
1880             if (content.getDataMessage().isPresent()) {
1881                 SignalServiceDataMessage message = content.getDataMessage().get();
1882
1883                 if (content.isNeedsReceipt()) {
1884                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1885                 }
1886
1887                 actions.addAll(handleSignalServiceDataMessage(message,
1888                         false,
1889                         sender,
1890                         account.getSelfAddress(),
1891                         ignoreAttachments));
1892             }
1893             if (content.getSyncMessage().isPresent()) {
1894                 account.setMultiDevice(true);
1895                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1896                 if (syncMessage.getSent().isPresent()) {
1897                     SentTranscriptMessage message = syncMessage.getSent().get();
1898                     final SignalServiceAddress destination = message.getDestination().orNull();
1899                     if (destination != null) {
1900                         actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
1901                                 true,
1902                                 sender,
1903                                 destination,
1904                                 ignoreAttachments));
1905                     }
1906                 }
1907                 if (syncMessage.getRequest().isPresent()) {
1908                     RequestMessage rm = syncMessage.getRequest().get();
1909                     if (rm.isContactsRequest()) {
1910                         actions.add(SendSyncContactsAction.create());
1911                     }
1912                     if (rm.isGroupsRequest()) {
1913                         actions.add(SendSyncGroupsAction.create());
1914                     }
1915                     if (rm.isBlockedListRequest()) {
1916                         actions.add(SendSyncBlockedListAction.create());
1917                     }
1918                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
1919                 }
1920                 if (syncMessage.getGroups().isPresent()) {
1921                     File tmpFile = null;
1922                     try {
1923                         tmpFile = IOUtils.createTempFile();
1924                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups()
1925                                 .get()
1926                                 .asPointer(), tmpFile)) {
1927                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1928                             DeviceGroup g;
1929                             while ((g = s.read()) != null) {
1930                                 GroupInfoV1 syncGroup = account.getGroupStore().getOrCreateGroupV1(g.getId());
1931                                 if (syncGroup != null) {
1932                                     if (g.getName().isPresent()) {
1933                                         syncGroup.name = g.getName().get();
1934                                     }
1935                                     syncGroup.addMembers(g.getMembers()
1936                                             .stream()
1937                                             .map(this::resolveSignalServiceAddress)
1938                                             .collect(Collectors.toSet()));
1939                                     if (!g.isActive()) {
1940                                         syncGroup.removeMember(account.getSelfAddress());
1941                                     } else {
1942                                         // Add ourself to the member set as it's marked as active
1943                                         syncGroup.addMembers(Collections.singleton(account.getSelfAddress()));
1944                                     }
1945                                     syncGroup.blocked = g.isBlocked();
1946                                     if (g.getColor().isPresent()) {
1947                                         syncGroup.color = g.getColor().get();
1948                                     }
1949
1950                                     if (g.getAvatar().isPresent()) {
1951                                         retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId);
1952                                     }
1953                                     syncGroup.inboxPosition = g.getInboxPosition().orNull();
1954                                     syncGroup.archived = g.isArchived();
1955                                     account.getGroupStore().updateGroup(syncGroup);
1956                                 }
1957                             }
1958                         }
1959                     } catch (Exception e) {
1960                         e.printStackTrace();
1961                     } finally {
1962                         if (tmpFile != null) {
1963                             try {
1964                                 Files.delete(tmpFile.toPath());
1965                             } catch (IOException e) {
1966                                 System.err.println("Failed to delete received groups temp file “"
1967                                         + tmpFile
1968                                         + "”: "
1969                                         + e.getMessage());
1970                             }
1971                         }
1972                     }
1973                 }
1974                 if (syncMessage.getBlockedList().isPresent()) {
1975                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1976                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1977                         setContactBlocked(resolveSignalServiceAddress(address), true);
1978                     }
1979                     for (byte[] groupId : blockedListMessage.getGroupIds()) {
1980                         try {
1981                             setGroupBlocked(groupId, true);
1982                         } catch (GroupNotFoundException e) {
1983                             System.err.println("BlockedListMessage contained groupID that was not found in GroupStore: "
1984                                     + Base64.encodeBytes(groupId));
1985                         }
1986                     }
1987                 }
1988                 if (syncMessage.getContacts().isPresent()) {
1989                     File tmpFile = null;
1990                     try {
1991                         tmpFile = IOUtils.createTempFile();
1992                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1993                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
1994                                 .asPointer(), tmpFile)) {
1995                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1996                             if (contactsMessage.isComplete()) {
1997                                 account.getContactStore().clear();
1998                             }
1999                             DeviceContact c;
2000                             while ((c = s.read()) != null) {
2001                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2002                                     account.setProfileKey(c.getProfileKey().get());
2003                                 }
2004                                 final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
2005                                 ContactInfo contact = account.getContactStore().getContact(address);
2006                                 if (contact == null) {
2007                                     contact = new ContactInfo(address);
2008                                 }
2009                                 if (c.getName().isPresent()) {
2010                                     contact.name = c.getName().get();
2011                                 }
2012                                 if (c.getColor().isPresent()) {
2013                                     contact.color = c.getColor().get();
2014                                 }
2015                                 if (c.getProfileKey().isPresent()) {
2016                                     account.getProfileStore().storeProfileKey(address, c.getProfileKey().get());
2017                                 }
2018                                 if (c.getVerified().isPresent()) {
2019                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
2020                                     account.getSignalProtocolStore()
2021                                             .setIdentityTrustLevel(verifiedMessage.getDestination(),
2022                                                     verifiedMessage.getIdentityKey(),
2023                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2024                                 }
2025                                 if (c.getExpirationTimer().isPresent()) {
2026                                     contact.messageExpirationTime = c.getExpirationTimer().get();
2027                                 }
2028                                 contact.blocked = c.isBlocked();
2029                                 contact.inboxPosition = c.getInboxPosition().orNull();
2030                                 contact.archived = c.isArchived();
2031                                 account.getContactStore().updateContact(contact);
2032
2033                                 if (c.getAvatar().isPresent()) {
2034                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
2035                                 }
2036                             }
2037                         }
2038                     } catch (Exception e) {
2039                         e.printStackTrace();
2040                     } finally {
2041                         if (tmpFile != null) {
2042                             try {
2043                                 Files.delete(tmpFile.toPath());
2044                             } catch (IOException e) {
2045                                 System.err.println("Failed to delete received contacts temp file “"
2046                                         + tmpFile
2047                                         + "”: "
2048                                         + e.getMessage());
2049                             }
2050                         }
2051                     }
2052                 }
2053                 if (syncMessage.getVerified().isPresent()) {
2054                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
2055                     account.getSignalProtocolStore()
2056                             .setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()),
2057                                     verifiedMessage.getIdentityKey(),
2058                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2059                 }
2060                 if (syncMessage.getStickerPackOperations().isPresent()) {
2061                     final List<StickerPackOperationMessage> stickerPackOperationMessages = syncMessage.getStickerPackOperations()
2062                             .get();
2063                     for (StickerPackOperationMessage m : stickerPackOperationMessages) {
2064                         if (!m.getPackId().isPresent()) {
2065                             continue;
2066                         }
2067                         Sticker sticker = account.getStickerStore().getSticker(m.getPackId().get());
2068                         if (sticker == null) {
2069                             if (!m.getPackKey().isPresent()) {
2070                                 continue;
2071                             }
2072                             sticker = new Sticker(m.getPackId().get(), m.getPackKey().get());
2073                         }
2074                         sticker.setInstalled(!m.getType().isPresent()
2075                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2076                         account.getStickerStore().updateSticker(sticker);
2077                     }
2078                 }
2079                 if (syncMessage.getConfiguration().isPresent()) {
2080                     // TODO
2081                 }
2082             }
2083         }
2084         return actions;
2085     }
2086
2087     private File getContactAvatarFile(String number) {
2088         return new File(pathConfig.getAvatarsPath(), "contact-" + number);
2089     }
2090
2091     private File retrieveContactAvatarAttachment(
2092             SignalServiceAttachment attachment, String number
2093     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2094         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2095         if (attachment.isPointer()) {
2096             SignalServiceAttachmentPointer pointer = attachment.asPointer();
2097             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
2098         } else {
2099             SignalServiceAttachmentStream stream = attachment.asStream();
2100             return Utils.retrieveAttachment(stream, getContactAvatarFile(number));
2101         }
2102     }
2103
2104     private File getGroupAvatarFile(byte[] groupId) {
2105         return new File(pathConfig.getAvatarsPath(), "group-" + Base64.encodeBytes(groupId).replace("/", "_"));
2106     }
2107
2108     private File retrieveGroupAvatarAttachment(
2109             SignalServiceAttachment attachment, byte[] groupId
2110     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2111         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2112         if (attachment.isPointer()) {
2113             SignalServiceAttachmentPointer pointer = attachment.asPointer();
2114             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
2115         } else {
2116             SignalServiceAttachmentStream stream = attachment.asStream();
2117             return Utils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
2118         }
2119     }
2120
2121     private File getProfileAvatarFile(SignalServiceAddress address) {
2122         return new File(pathConfig.getAvatarsPath(), "profile-" + address.getLegacyIdentifier());
2123     }
2124
2125     private File retrieveProfileAvatar(
2126             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2127     ) throws IOException {
2128         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2129         SignalServiceMessageReceiver receiver = getOrCreateMessageReceiver();
2130         File outputFile = getProfileAvatarFile(address);
2131
2132         File tmpFile = IOUtils.createTempFile();
2133         try (InputStream input = receiver.retrieveProfileAvatar(avatarPath,
2134                 tmpFile,
2135                 profileKey,
2136                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2137             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2138             IOUtils.copyStreamToFile(input, outputFile, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2139         } finally {
2140             try {
2141                 Files.delete(tmpFile.toPath());
2142             } catch (IOException e) {
2143                 System.err.println("Failed to delete received avatar temp file “" + tmpFile + "”: " + e.getMessage());
2144             }
2145         }
2146         return outputFile;
2147     }
2148
2149     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2150         return new File(pathConfig.getAttachmentsPath(), attachmentId.toString());
2151     }
2152
2153     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException, MissingConfigurationException {
2154         IOUtils.createPrivateDirectories(pathConfig.getAttachmentsPath());
2155         return retrieveAttachment(pointer, getAttachmentFile(pointer.getRemoteId()), true);
2156     }
2157
2158     private File retrieveAttachment(
2159             SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview
2160     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2161         if (storePreview && pointer.getPreview().isPresent()) {
2162             File previewFile = new File(outputFile + ".preview");
2163             try (OutputStream output = new FileOutputStream(previewFile)) {
2164                 byte[] preview = pointer.getPreview().get();
2165                 output.write(preview, 0, preview.length);
2166             } catch (FileNotFoundException e) {
2167                 e.printStackTrace();
2168                 return null;
2169             }
2170         }
2171
2172         final SignalServiceMessageReceiver messageReceiver = getOrCreateMessageReceiver();
2173
2174         File tmpFile = IOUtils.createTempFile();
2175         try (InputStream input = messageReceiver.retrieveAttachment(pointer,
2176                 tmpFile,
2177                 ServiceConfig.MAX_ATTACHMENT_SIZE)) {
2178             IOUtils.copyStreamToFile(input, outputFile);
2179         } finally {
2180             try {
2181                 Files.delete(tmpFile.toPath());
2182             } catch (IOException e) {
2183                 System.err.println("Failed to delete received attachment temp file “"
2184                         + tmpFile
2185                         + "”: "
2186                         + e.getMessage());
2187             }
2188         }
2189         return outputFile;
2190     }
2191
2192     private InputStream retrieveAttachmentAsStream(
2193             SignalServiceAttachmentPointer pointer, File tmpFile
2194     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2195         final SignalServiceMessageReceiver messageReceiver = getOrCreateMessageReceiver();
2196         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2197     }
2198
2199     void sendGroups() throws IOException, UntrustedIdentityException {
2200         File groupsFile = IOUtils.createTempFile();
2201
2202         try {
2203             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2204                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
2205                 for (GroupInfo record : account.getGroupStore().getGroups()) {
2206                     if (record instanceof GroupInfoV1) {
2207                         GroupInfoV1 groupInfo = (GroupInfoV1) record;
2208                         out.write(new DeviceGroup(groupInfo.groupId,
2209                                 Optional.fromNullable(groupInfo.name),
2210                                 new ArrayList<>(groupInfo.getMembers()),
2211                                 createGroupAvatarAttachment(groupInfo.groupId),
2212                                 groupInfo.isMember(account.getSelfAddress()),
2213                                 Optional.of(groupInfo.messageExpirationTime),
2214                                 Optional.fromNullable(groupInfo.color),
2215                                 groupInfo.blocked,
2216                                 Optional.fromNullable(groupInfo.inboxPosition),
2217                                 groupInfo.archived));
2218                     }
2219                 }
2220             }
2221
2222             if (groupsFile.exists() && groupsFile.length() > 0) {
2223                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
2224                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2225                             .withStream(groupsFileStream)
2226                             .withContentType("application/octet-stream")
2227                             .withLength(groupsFile.length())
2228                             .build();
2229
2230                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2231                 }
2232             }
2233         } finally {
2234             try {
2235                 Files.delete(groupsFile.toPath());
2236             } catch (IOException e) {
2237                 System.err.println("Failed to delete groups temp file “" + groupsFile + "”: " + e.getMessage());
2238             }
2239         }
2240     }
2241
2242     public void sendContacts() throws IOException, UntrustedIdentityException {
2243         File contactsFile = IOUtils.createTempFile();
2244
2245         try {
2246             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2247                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
2248                 for (ContactInfo record : account.getContactStore().getContacts()) {
2249                     VerifiedMessage verifiedMessage = null;
2250                     JsonIdentityKeyStore.Identity currentIdentity = account.getSignalProtocolStore()
2251                             .getIdentity(record.getAddress());
2252                     if (currentIdentity != null) {
2253                         verifiedMessage = new VerifiedMessage(record.getAddress(),
2254                                 currentIdentity.getIdentityKey(),
2255                                 currentIdentity.getTrustLevel().toVerifiedState(),
2256                                 currentIdentity.getDateAdded().getTime());
2257                     }
2258
2259                     ProfileKey profileKey = account.getProfileStore().getProfileKey(record.getAddress());
2260                     out.write(new DeviceContact(record.getAddress(),
2261                             Optional.fromNullable(record.name),
2262                             createContactAvatarAttachment(record.number),
2263                             Optional.fromNullable(record.color),
2264                             Optional.fromNullable(verifiedMessage),
2265                             Optional.fromNullable(profileKey),
2266                             record.blocked,
2267                             Optional.of(record.messageExpirationTime),
2268                             Optional.fromNullable(record.inboxPosition),
2269                             record.archived));
2270                 }
2271
2272                 if (account.getProfileKey() != null) {
2273                     // Send our own profile key as well
2274                     out.write(new DeviceContact(account.getSelfAddress(),
2275                             Optional.absent(),
2276                             Optional.absent(),
2277                             Optional.absent(),
2278                             Optional.absent(),
2279                             Optional.of(account.getProfileKey()),
2280                             false,
2281                             Optional.absent(),
2282                             Optional.absent(),
2283                             false));
2284                 }
2285             }
2286
2287             if (contactsFile.exists() && contactsFile.length() > 0) {
2288                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
2289                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2290                             .withStream(contactsFileStream)
2291                             .withContentType("application/octet-stream")
2292                             .withLength(contactsFile.length())
2293                             .build();
2294
2295                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2296                 }
2297             }
2298         } finally {
2299             try {
2300                 Files.delete(contactsFile.toPath());
2301             } catch (IOException e) {
2302                 System.err.println("Failed to delete contacts temp file “" + contactsFile + "”: " + e.getMessage());
2303             }
2304         }
2305     }
2306
2307     void sendBlockedList() throws IOException, UntrustedIdentityException {
2308         List<SignalServiceAddress> addresses = new ArrayList<>();
2309         for (ContactInfo record : account.getContactStore().getContacts()) {
2310             if (record.blocked) {
2311                 addresses.add(record.getAddress());
2312             }
2313         }
2314         List<byte[]> groupIds = new ArrayList<>();
2315         for (GroupInfo record : account.getGroupStore().getGroups()) {
2316             if (record.isBlocked()) {
2317                 groupIds.add(record.groupId);
2318             }
2319         }
2320         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2321     }
2322
2323     private void sendVerifiedMessage(
2324             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2325     ) throws IOException, UntrustedIdentityException {
2326         VerifiedMessage verifiedMessage = new VerifiedMessage(destination,
2327                 identityKey,
2328                 trustLevel.toVerifiedState(),
2329                 System.currentTimeMillis());
2330         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2331     }
2332
2333     public List<ContactInfo> getContacts() {
2334         return account.getContactStore().getContacts();
2335     }
2336
2337     public ContactInfo getContact(String number) {
2338         return account.getContactStore().getContact(Util.getSignalServiceAddressFromIdentifier(number));
2339     }
2340
2341     public GroupInfo getGroup(byte[] groupId) {
2342         return account.getGroupStore().getGroup(groupId);
2343     }
2344
2345     public List<JsonIdentityKeyStore.Identity> getIdentities() {
2346         return account.getSignalProtocolStore().getIdentities();
2347     }
2348
2349     public List<JsonIdentityKeyStore.Identity> getIdentities(String number) throws InvalidNumberException {
2350         return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));
2351     }
2352
2353     /**
2354      * Trust this the identity with this fingerprint
2355      *
2356      * @param name        username of the identity
2357      * @param fingerprint Fingerprint
2358      */
2359     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2360         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2361         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2362         if (ids == null) {
2363             return false;
2364         }
2365         for (JsonIdentityKeyStore.Identity id : ids) {
2366             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
2367                 continue;
2368             }
2369
2370             account.getSignalProtocolStore()
2371                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2372             try {
2373                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2374             } catch (IOException | UntrustedIdentityException e) {
2375                 e.printStackTrace();
2376             }
2377             account.save();
2378             return true;
2379         }
2380         return false;
2381     }
2382
2383     /**
2384      * Trust this the identity with this safety number
2385      *
2386      * @param name         username of the identity
2387      * @param safetyNumber Safety number
2388      */
2389     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2390         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2391         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2392         if (ids == null) {
2393             return false;
2394         }
2395         for (JsonIdentityKeyStore.Identity id : ids) {
2396             if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {
2397                 continue;
2398             }
2399
2400             account.getSignalProtocolStore()
2401                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2402             try {
2403                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2404             } catch (IOException | UntrustedIdentityException e) {
2405                 e.printStackTrace();
2406             }
2407             account.save();
2408             return true;
2409         }
2410         return false;
2411     }
2412
2413     /**
2414      * Trust all keys of this identity without verification
2415      *
2416      * @param name username of the identity
2417      */
2418     public boolean trustIdentityAllKeys(String name) {
2419         SignalServiceAddress address = resolveSignalServiceAddress(name);
2420         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2421         if (ids == null) {
2422             return false;
2423         }
2424         for (JsonIdentityKeyStore.Identity id : ids) {
2425             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2426                 account.getSignalProtocolStore()
2427                         .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2428                 try {
2429                     sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2430                 } catch (IOException | UntrustedIdentityException e) {
2431                     e.printStackTrace();
2432                 }
2433             }
2434         }
2435         account.save();
2436         return true;
2437     }
2438
2439     public String computeSafetyNumber(
2440             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2441     ) {
2442         return Utils.computeSafetyNumber(account.getSelfAddress(),
2443                 getIdentityKeyPair().getPublicKey(),
2444                 theirAddress,
2445                 theirIdentityKey);
2446     }
2447
2448     void saveAccount() {
2449         account.save();
2450     }
2451
2452     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2453         String canonicalizedNumber = UuidUtil.isUuid(identifier)
2454                 ? identifier
2455                 : Util.canonicalizeNumber(identifier, account.getUsername());
2456         return resolveSignalServiceAddress(canonicalizedNumber);
2457     }
2458
2459     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2460         SignalServiceAddress address = Util.getSignalServiceAddressFromIdentifier(identifier);
2461
2462         return resolveSignalServiceAddress(address);
2463     }
2464
2465     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2466         if (address.matches(account.getSelfAddress())) {
2467             return account.getSelfAddress();
2468         }
2469
2470         return account.getRecipientStore().resolveServiceAddress(address);
2471     }
2472
2473     @Override
2474     public void close() throws IOException {
2475         if (messagePipe != null) {
2476             messagePipe.shutdown();
2477             messagePipe = null;
2478         }
2479
2480         if (unidentifiedMessagePipe != null) {
2481             unidentifiedMessagePipe.shutdown();
2482             unidentifiedMessagePipe = null;
2483         }
2484
2485         account.close();
2486     }
2487
2488     public interface ReceiveMessageHandler {
2489
2490         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2491     }
2492 }