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         SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT).withId(groupId).build();
 743
 744         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 745
 746         final GroupInfo g = getGroupForSending(groupId);
 747         if (g instanceof GroupInfoV1) {
 748             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
 749             groupInfoV1.removeMember(account.getSelfAddress());
 750             account.getGroupStore().updateGroup(groupInfoV1);
 751         } else {
 752             throw new RuntimeException("TODO Not implemented!");
 753         }
 754
 755         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 756     }
 757
 758     private Pair<byte[], List<SendMessageResult>> sendUpdateGroupMessage(
 759             byte[] groupId, String name, Collection<SignalServiceAddress> members, String avatarFile
 760     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 761         GroupInfo g;
 762         SignalServiceDataMessage.Builder messageBuilder;
 763         if (groupId == null) {
 764             // Create new group
 765             GroupInfoV2 gv2 = groupHelper.createGroupV2(name, members, avatarFile);
 766             if (gv2 == null) {
 767                 GroupInfoV1 gv1 = new GroupInfoV1(KeyUtils.createGroupId());
 768                 gv1.addMembers(Collections.singleton(account.getSelfAddress()));
 769                 updateGroupV1(gv1, name, members, avatarFile);
 770                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 771                 g = gv1;
 772             } else {
 773                 messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 774                 g = gv2;
 775             }
 776         } else {
 777             GroupInfo group = getGroupForSending(groupId);
 778             if (group instanceof GroupInfoV2) {
 779                 Pair<DecryptedGroup, GroupChange> groupGroupChangePair = null;
 780                 if (members != null) {
 781                     final Set<SignalServiceAddress> newMembers = new HashSet<>(members);
 782                     newMembers.removeAll(group.getMembers());
 783                     if (newMembers.size() > 0) {
 784                         groupGroupChangePair = groupHelper.updateGroupV2((GroupInfoV2) group, newMembers);
 785                     }
 786                 }
 787                 if (groupGroupChangePair == null || name != null || avatarFile != null) {
 788                     if (groupGroupChangePair != null) {
 789                         ((GroupInfoV2) group).setGroup(groupGroupChangePair.first());
 790                         messageBuilder = getGroupUpdateMessageBuilder((GroupInfoV2) group,
 791                                 groupGroupChangePair.second().toByteArray());
 792                         sendMessage(messageBuilder, group.getMembersWithout(account.getSelfAddress()));
 793                     }
 794
 795                     groupGroupChangePair = groupHelper.updateGroupV2((GroupInfoV2) group, name, avatarFile);
 796                 }
 797
 798                 ((GroupInfoV2) group).setGroup(groupGroupChangePair.first());
 799                 messageBuilder = getGroupUpdateMessageBuilder((GroupInfoV2) group,
 800                         groupGroupChangePair.second().toByteArray());
 801                 g = group;
 802             } else {
 803                 GroupInfoV1 gv1 = (GroupInfoV1) group;
 804                 updateGroupV1(gv1, name, members, avatarFile);
 805                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 806                 g = gv1;
 807             }
 808         }
 809
 810         account.getGroupStore().updateGroup(g);
 811
 812         final Pair<Long, List<SendMessageResult>> result = sendMessage(messageBuilder,
 813                 g.getMembersWithout(account.getSelfAddress()));
 814         return new Pair<>(g.groupId, result.second());
 815     }
 816
 817     private void updateGroupV1(
 818             final GroupInfoV1 g,
 819             final String name,
 820             final Collection<SignalServiceAddress> members,
 821             final String avatarFile
 822     ) throws IOException {
 823         if (name != null) {
 824             g.name = name;
 825         }
 826
 827         if (members != null) {
 828             final Set<String> newE164Members = new HashSet<>();
 829             for (SignalServiceAddress member : members) {
 830                 if (g.isMember(member) || !member.getNumber().isPresent()) {
 831                     continue;
 832                 }
 833                 newE164Members.add(member.getNumber().get());
 834             }
 835
 836             final List<ContactTokenDetails> contacts = accountManager.getContacts(newE164Members);
 837             if (contacts.size() != newE164Members.size()) {
 838                 // Some of the new members are not registered on Signal
 839                 for (ContactTokenDetails contact : contacts) {
 840                     newE164Members.remove(contact.getNumber());
 841                 }
 842                 throw new IOException("Failed to add members "
 843                         + Util.join(", ", newE164Members)
 844                         + " to group: Not registered on Signal");
 845             }
 846
 847             g.addMembers(members);
 848         }
 849
 850         if (avatarFile != null) {
 851             IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
 852             File aFile = getGroupAvatarFile(g.groupId);
 853             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 854         }
 855     }
 856
 857     Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 858             byte[] groupId, SignalServiceAddress recipient
 859     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 860         GroupInfoV1 g;
 861         GroupInfo group = getGroupForSending(groupId);
 862         if (!(group instanceof GroupInfoV1)) {
 863             throw new RuntimeException("Received an invalid group request for a v2 group!");
 864         }
 865         g = (GroupInfoV1) group;
 866
 867         if (!g.isMember(recipient)) {
 868             throw new NotAGroupMemberException(groupId, g.name);
 869         }
 870
 871         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 872
 873         // Send group message only to the recipient who requested it
 874         return sendMessage(messageBuilder, Collections.singleton(recipient));
 875     }
 876
 877     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 878         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 879                 .withId(g.groupId)
 880                 .withName(g.name)
 881                 .withMembers(new ArrayList<>(g.getMembers()));
 882
 883         File aFile = getGroupAvatarFile(g.groupId);
 884         if (aFile.exists()) {
 885             try {
 886                 group.withAvatar(Utils.createAttachment(aFile));
 887             } catch (IOException e) {
 888                 throw new AttachmentInvalidException(aFile.toString(), e);
 889             }
 890         }
 891
 892         return SignalServiceDataMessage.newBuilder()
 893                 .asGroupMessage(group.build())
 894                 .withExpiration(g.getMessageExpirationTime());
 895     }
 896
 897     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
 898         SignalServiceGroupV2.Builder group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
 899                 .withRevision(g.getGroup().getRevision())
 900                 .withSignedGroupChange(signedGroupChange);
 901         return SignalServiceDataMessage.newBuilder()
 902                 .asGroupMessage(group.build())
 903                 .withExpiration(g.getMessageExpirationTime());
 904     }
 905
 906     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
 907             byte[] groupId, SignalServiceAddress recipient
 908     ) throws IOException {
 909         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 910                 .withId(groupId);
 911
 912         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 913                 .asGroupMessage(group.build());
 914
 915         // Send group info request message to the recipient who sent us a message with this groupId
 916         return sendMessage(messageBuilder, Collections.singleton(recipient));
 917     }
 918
 919     void sendReceipt(
 920             SignalServiceAddress remoteAddress, long messageId
 921     ) throws IOException, UntrustedIdentityException {
 922         SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
 923                 Collections.singletonList(messageId),
 924                 System.currentTimeMillis());
 925
 926         createMessageSender().sendReceipt(remoteAddress,
 927                 unidentifiedAccessHelper.getAccessFor(remoteAddress),
 928                 receiptMessage);
 929     }
 930
 931     public Pair<Long, List<SendMessageResult>> sendMessage(
 932             String messageText, List<String> attachments, List<String> recipients
 933     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
 934         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 935                 .withBody(messageText);
 936         if (attachments != null) {
 937             List<SignalServiceAttachment> attachmentStreams = Utils.getSignalServiceAttachments(attachments);
 938
 939             // Upload attachments here, so we only upload once even for multiple recipients
 940             SignalServiceMessageSender messageSender = createMessageSender();
 941             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 942             for (SignalServiceAttachment attachment : attachmentStreams) {
 943                 if (attachment.isStream()) {
 944                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 945                 } else if (attachment.isPointer()) {
 946                     attachmentPointers.add(attachment.asPointer());
 947                 }
 948             }
 949
 950             messageBuilder.withAttachments(attachmentPointers);
 951         }
 952         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
 953     }
 954
 955     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
 956             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
 957     ) throws IOException, InvalidNumberException {
 958         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
 959                 remove,
 960                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
 961                 targetSentTimestamp);
 962         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 963                 .withReaction(reaction);
 964         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
 965     }
 966
 967     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
 968         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
 969
 970         final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
 971         try {
 972             return sendMessage(messageBuilder, signalServiceAddresses);
 973         } catch (Exception e) {
 974             for (SignalServiceAddress address : signalServiceAddresses) {
 975                 handleEndSession(address);
 976             }
 977             account.save();
 978             throw e;
 979         }
 980     }
 981
 982     public String getContactName(String number) throws InvalidNumberException {
 983         ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));
 984         if (contact == null) {
 985             return "";
 986         } else {
 987             return contact.name;
 988         }
 989     }
 990
 991     public void setContactName(String number, String name) throws InvalidNumberException {
 992         final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 993         ContactInfo contact = account.getContactStore().getContact(address);
 994         if (contact == null) {
 995             contact = new ContactInfo(address);
 996         }
 997         contact.name = name;
 998         account.getContactStore().updateContact(contact);
 999         account.save();
1000     }
1001
1002     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
1003         setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
1004     }
1005
1006     private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
1007         ContactInfo contact = account.getContactStore().getContact(address);
1008         if (contact == null) {
1009             contact = new ContactInfo(address);
1010         }
1011         contact.blocked = blocked;
1012         account.getContactStore().updateContact(contact);
1013         account.save();
1014     }
1015
1016     public void setGroupBlocked(final byte[] groupId, final boolean blocked) throws GroupNotFoundException {
1017         GroupInfo group = getGroup(groupId);
1018         if (group == null) {
1019             throw new GroupNotFoundException(groupId);
1020         }
1021
1022         group.setBlocked(blocked);
1023         account.getGroupStore().updateGroup(group);
1024         account.save();
1025     }
1026
1027     public Pair<byte[], List<SendMessageResult>> updateGroup(
1028             byte[] groupId, String name, List<String> members, String avatar
1029     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
1030         return sendUpdateGroupMessage(groupId,
1031                 name,
1032                 members == null ? null : getSignalServiceAddresses(members),
1033                 avatar);
1034     }
1035
1036     /**
1037      * Change the expiration timer for a contact
1038      */
1039     public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) throws IOException {
1040         ContactInfo contact = account.getContactStore().getContact(address);
1041         contact.messageExpirationTime = messageExpirationTimer;
1042         account.getContactStore().updateContact(contact);
1043         sendExpirationTimerUpdate(address);
1044         account.save();
1045     }
1046
1047     private void sendExpirationTimerUpdate(SignalServiceAddress address) throws IOException {
1048         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1049                 .asExpirationUpdate();
1050         sendMessage(messageBuilder, Collections.singleton(address));
1051     }
1052
1053     /**
1054      * Change the expiration timer for a contact
1055      */
1056     public void setExpirationTimer(
1057             String number, int messageExpirationTimer
1058     ) throws IOException, InvalidNumberException {
1059         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
1060         setExpirationTimer(address, messageExpirationTimer);
1061     }
1062
1063     /**
1064      * Change the expiration timer for a group
1065      */
1066     public void setExpirationTimer(byte[] groupId, int messageExpirationTimer) {
1067         GroupInfo g = account.getGroupStore().getGroup(groupId);
1068         if (g instanceof GroupInfoV1) {
1069             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
1070             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1071             account.getGroupStore().updateGroup(groupInfoV1);
1072         } else {
1073             throw new RuntimeException("TODO Not implemented!");
1074         }
1075     }
1076
1077     /**
1078      * Upload the sticker pack from path.
1079      *
1080      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1081      * @return if successful, returns the URL to install the sticker pack in the signal app
1082      */
1083     public String uploadStickerPack(String path) throws IOException, StickerPackInvalidException {
1084         SignalServiceStickerManifestUpload manifest = getSignalServiceStickerManifestUpload(path);
1085
1086         SignalServiceMessageSender messageSender = createMessageSender();
1087
1088         byte[] packKey = KeyUtils.createStickerUploadKey();
1089         String packId = messageSender.uploadStickerManifest(manifest, packKey);
1090
1091         Sticker sticker = new Sticker(Hex.fromStringCondensed(packId), packKey);
1092         account.getStickerStore().updateSticker(sticker);
1093         account.save();
1094
1095         try {
1096             return new URI("https",
1097                     "signal.art",
1098                     "/addstickers/",
1099                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1100                             Hex.toStringCondensed(packKey),
1101                             StandardCharsets.UTF_8)).toString();
1102         } catch (URISyntaxException e) {
1103             throw new AssertionError(e);
1104         }
1105     }
1106
1107     private SignalServiceStickerManifestUpload getSignalServiceStickerManifestUpload(
1108             final String path
1109     ) throws IOException, StickerPackInvalidException {
1110         ZipFile zip = null;
1111         String rootPath = null;
1112
1113         final File file = new File(path);
1114         if (file.getName().endsWith(".zip")) {
1115             zip = new ZipFile(file);
1116         } else if (file.getName().equals("manifest.json")) {
1117             rootPath = file.getParent();
1118         } else {
1119             throw new StickerPackInvalidException("Could not find manifest.json");
1120         }
1121
1122         JsonStickerPack pack = parseStickerPack(rootPath, zip);
1123
1124         if (pack.stickers == null) {
1125             throw new StickerPackInvalidException("Must set a 'stickers' field.");
1126         }
1127
1128         if (pack.stickers.isEmpty()) {
1129             throw new StickerPackInvalidException("Must include stickers.");
1130         }
1131
1132         List<StickerInfo> stickers = new ArrayList<>(pack.stickers.size());
1133         for (JsonStickerPack.JsonSticker sticker : pack.stickers) {
1134             if (sticker.file == null) {
1135                 throw new StickerPackInvalidException("Must set a 'file' field on each sticker.");
1136             }
1137
1138             Pair<InputStream, Long> data;
1139             try {
1140                 data = getInputStreamAndLength(rootPath, zip, sticker.file);
1141             } catch (IOException ignored) {
1142                 throw new StickerPackInvalidException("Could not find find " + sticker.file);
1143             }
1144
1145             String contentType = Utils.getFileMimeType(new File(sticker.file), null);
1146             StickerInfo stickerInfo = new StickerInfo(data.first(),
1147                     data.second(),
1148                     Optional.fromNullable(sticker.emoji).or(""),
1149                     contentType);
1150             stickers.add(stickerInfo);
1151         }
1152
1153         StickerInfo cover = null;
1154         if (pack.cover != null) {
1155             if (pack.cover.file == null) {
1156                 throw new StickerPackInvalidException("Must set a 'file' field on the cover.");
1157             }
1158
1159             Pair<InputStream, Long> data;
1160             try {
1161                 data = getInputStreamAndLength(rootPath, zip, pack.cover.file);
1162             } catch (IOException ignored) {
1163                 throw new StickerPackInvalidException("Could not find find " + pack.cover.file);
1164             }
1165
1166             String contentType = Utils.getFileMimeType(new File(pack.cover.file), null);
1167             cover = new StickerInfo(data.first(),
1168                     data.second(),
1169                     Optional.fromNullable(pack.cover.emoji).or(""),
1170                     contentType);
1171         }
1172
1173         return new SignalServiceStickerManifestUpload(pack.title, pack.author, cover, stickers);
1174     }
1175
1176     private static JsonStickerPack parseStickerPack(String rootPath, ZipFile zip) throws IOException {
1177         InputStream inputStream;
1178         if (zip != null) {
1179             inputStream = zip.getInputStream(zip.getEntry("manifest.json"));
1180         } else {
1181             inputStream = new FileInputStream((new File(rootPath, "manifest.json")));
1182         }
1183         return new ObjectMapper().readValue(inputStream, JsonStickerPack.class);
1184     }
1185
1186     private static Pair<InputStream, Long> getInputStreamAndLength(
1187             final String rootPath, final ZipFile zip, final String subfile
1188     ) throws IOException {
1189         if (zip != null) {
1190             final ZipEntry entry = zip.getEntry(subfile);
1191             return new Pair<>(zip.getInputStream(entry), entry.getSize());
1192         } else {
1193             final File file = new File(rootPath, subfile);
1194             return new Pair<>(new FileInputStream(file), file.length());
1195         }
1196     }
1197
1198     void requestSyncGroups() throws IOException {
1199         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1200                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1201                 .build();
1202         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1203         try {
1204             sendSyncMessage(message);
1205         } catch (UntrustedIdentityException e) {
1206             e.printStackTrace();
1207         }
1208     }
1209
1210     void requestSyncContacts() throws IOException {
1211         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1212                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1213                 .build();
1214         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1215         try {
1216             sendSyncMessage(message);
1217         } catch (UntrustedIdentityException e) {
1218             e.printStackTrace();
1219         }
1220     }
1221
1222     void requestSyncBlocked() throws IOException {
1223         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1224                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1225                 .build();
1226         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1227         try {
1228             sendSyncMessage(message);
1229         } catch (UntrustedIdentityException e) {
1230             e.printStackTrace();
1231         }
1232     }
1233
1234     void requestSyncConfiguration() throws IOException {
1235         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1236                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1237                 .build();
1238         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1239         try {
1240             sendSyncMessage(message);
1241         } catch (UntrustedIdentityException e) {
1242             e.printStackTrace();
1243         }
1244     }
1245
1246     private byte[] getSenderCertificate() {
1247         // TODO support UUID capable sender certificates
1248         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1249         byte[] certificate;
1250         try {
1251             certificate = accountManager.getSenderCertificate();
1252         } catch (IOException e) {
1253             System.err.println("Failed to get sender certificate: " + e);
1254             return null;
1255         }
1256         // TODO cache for a day
1257         return certificate;
1258     }
1259
1260     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1261         SignalServiceMessageSender messageSender = createMessageSender();
1262         try {
1263             messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1264         } catch (UntrustedIdentityException e) {
1265             account.getSignalProtocolStore()
1266                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1267                             e.getIdentityKey(),
1268                             TrustLevel.UNTRUSTED);
1269             throw e;
1270         }
1271     }
1272
1273     private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1274         final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
1275
1276         for (String number : numbers) {
1277             signalServiceAddresses.add(canonicalizeAndResolveSignalServiceAddress(number));
1278         }
1279         return signalServiceAddresses;
1280     }
1281
1282     private Pair<Long, List<SendMessageResult>> sendMessage(
1283             SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients
1284     ) throws IOException {
1285         recipients = recipients.stream().map(this::resolveSignalServiceAddress).collect(Collectors.toSet());
1286         final long timestamp = System.currentTimeMillis();
1287         messageBuilder.withTimestamp(timestamp);
1288         getOrCreateMessagePipe();
1289         getOrCreateUnidentifiedMessagePipe();
1290         SignalServiceDataMessage message = null;
1291         try {
1292             message = messageBuilder.build();
1293             if (message.getGroupContext().isPresent()) {
1294                 try {
1295                     SignalServiceMessageSender messageSender = createMessageSender();
1296                     final boolean isRecipientUpdate = false;
1297                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients),
1298                             unidentifiedAccessHelper.getAccessFor(recipients),
1299                             isRecipientUpdate,
1300                             message);
1301                     for (SendMessageResult r : result) {
1302                         if (r.getIdentityFailure() != null) {
1303                             account.getSignalProtocolStore()
1304                                     .saveIdentity(r.getAddress(),
1305                                             r.getIdentityFailure().getIdentityKey(),
1306                                             TrustLevel.UNTRUSTED);
1307                         }
1308                     }
1309                     return new Pair<>(timestamp, result);
1310                 } catch (UntrustedIdentityException e) {
1311                     account.getSignalProtocolStore()
1312                             .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1313                                     e.getIdentityKey(),
1314                                     TrustLevel.UNTRUSTED);
1315                     return new Pair<>(timestamp, Collections.emptyList());
1316                 }
1317             } else {
1318                 // Send to all individually, so sync messages are sent correctly
1319                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1320                 for (SignalServiceAddress address : recipients) {
1321                     ContactInfo contact = account.getContactStore().getContact(address);
1322                     if (contact != null) {
1323                         messageBuilder.withExpiration(contact.messageExpirationTime);
1324                         messageBuilder.withProfileKey(account.getProfileKey().serialize());
1325                     } else {
1326                         messageBuilder.withExpiration(0);
1327                         messageBuilder.withProfileKey(null);
1328                     }
1329                     message = messageBuilder.build();
1330                     if (address.matches(account.getSelfAddress())) {
1331                         results.add(sendSelfMessage(message));
1332                     } else {
1333                         results.add(sendMessage(address, message));
1334                     }
1335                 }
1336                 return new Pair<>(timestamp, results);
1337             }
1338         } finally {
1339             if (message != null && message.isEndSession()) {
1340                 for (SignalServiceAddress recipient : recipients) {
1341                     handleEndSession(recipient);
1342                 }
1343             }
1344             account.save();
1345         }
1346     }
1347
1348     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1349         SignalServiceMessageSender messageSender = createMessageSender();
1350
1351         SignalServiceAddress recipient = account.getSelfAddress();
1352
1353         final Optional<UnidentifiedAccessPair> unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipient);
1354         SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1355                 message.getTimestamp(),
1356                 message,
1357                 message.getExpiresInSeconds(),
1358                 Collections.singletonMap(recipient, unidentifiedAccess.isPresent()),
1359                 false);
1360         SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1361
1362         try {
1363             long startTime = System.currentTimeMillis();
1364             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1365             return SendMessageResult.success(recipient,
1366                     unidentifiedAccess.isPresent(),
1367                     false,
1368                     System.currentTimeMillis() - startTime);
1369         } catch (UntrustedIdentityException e) {
1370             account.getSignalProtocolStore()
1371                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1372                             e.getIdentityKey(),
1373                             TrustLevel.UNTRUSTED);
1374             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1375         }
1376     }
1377
1378     private SendMessageResult sendMessage(
1379             SignalServiceAddress address, SignalServiceDataMessage message
1380     ) throws IOException {
1381         SignalServiceMessageSender messageSender = createMessageSender();
1382
1383         try {
1384             return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(address), message);
1385         } catch (UntrustedIdentityException e) {
1386             account.getSignalProtocolStore()
1387                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1388                             e.getIdentityKey(),
1389                             TrustLevel.UNTRUSTED);
1390             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1391         }
1392     }
1393
1394     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1395         SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(),
1396                 account.getSignalProtocolStore(),
1397                 Utils.getCertificateValidator());
1398         try {
1399             return cipher.decrypt(envelope);
1400         } catch (ProtocolUntrustedIdentityException e) {
1401             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1402                 org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e
1403                         .getCause();
1404                 account.getSignalProtocolStore()
1405                         .saveIdentity(resolveSignalServiceAddress(identityException.getName()),
1406                                 identityException.getUntrustedIdentity(),
1407                                 TrustLevel.UNTRUSTED);
1408                 throw identityException;
1409             }
1410             throw new AssertionError(e);
1411         }
1412     }
1413
1414     private void handleEndSession(SignalServiceAddress source) {
1415         account.getSignalProtocolStore().deleteAllSessions(source);
1416     }
1417
1418     private static int currentTimeDays() {
1419         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
1420     }
1421
1422     private GroupsV2AuthorizationString getGroupAuthForToday(
1423             final GroupSecretParams groupSecretParams
1424     ) throws IOException {
1425         final int today = currentTimeDays();
1426         // Returns credentials for the next 7 days
1427         final HashMap<Integer, AuthCredentialResponse> credentials = groupsV2Api.getCredentials(today);
1428         // TODO cache credentials until they expire
1429         AuthCredentialResponse authCredentialResponse = credentials.get(today);
1430         try {
1431             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
1432                     today,
1433                     groupSecretParams,
1434                     authCredentialResponse);
1435         } catch (VerificationFailedException e) {
1436             throw new IOException(e);
1437         }
1438     }
1439
1440     private List<HandleAction> handleSignalServiceDataMessage(
1441             SignalServiceDataMessage message,
1442             boolean isSync,
1443             SignalServiceAddress source,
1444             SignalServiceAddress destination,
1445             boolean ignoreAttachments
1446     ) {
1447         List<HandleAction> actions = new ArrayList<>();
1448         if (message.getGroupContext().isPresent()) {
1449             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1450                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1451                 GroupInfo group = account.getGroupStore().getGroupByV1Id(groupInfo.getGroupId());
1452                 if (group == null || group instanceof GroupInfoV1) {
1453                     GroupInfoV1 groupV1 = (GroupInfoV1) group;
1454                     switch (groupInfo.getType()) {
1455                         case UPDATE: {
1456                             if (groupV1 == null) {
1457                                 groupV1 = new GroupInfoV1(groupInfo.getGroupId());
1458                             }
1459
1460                             if (groupInfo.getAvatar().isPresent()) {
1461                                 SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1462                                 if (avatar.isPointer()) {
1463                                     try {
1464                                         retrieveGroupAvatarAttachment(avatar.asPointer(), groupV1.groupId);
1465                                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1466                                         System.err.println("Failed to retrieve group avatar (" + avatar.asPointer()
1467                                                 .getRemoteId() + "): " + e.getMessage());
1468                                     }
1469                                 }
1470                             }
1471
1472                             if (groupInfo.getName().isPresent()) {
1473                                 groupV1.name = groupInfo.getName().get();
1474                             }
1475
1476                             if (groupInfo.getMembers().isPresent()) {
1477                                 groupV1.addMembers(groupInfo.getMembers()
1478                                         .get()
1479                                         .stream()
1480                                         .map(this::resolveSignalServiceAddress)
1481                                         .collect(Collectors.toSet()));
1482                             }
1483
1484                             account.getGroupStore().updateGroup(groupV1);
1485                             break;
1486                         }
1487                         case DELIVER:
1488                             if (groupV1 == null && !isSync) {
1489                                 actions.add(new SendGroupInfoRequestAction(source, groupInfo.getGroupId()));
1490                             }
1491                             break;
1492                         case QUIT: {
1493                             if (groupV1 != null) {
1494                                 groupV1.removeMember(source);
1495                                 account.getGroupStore().updateGroup(groupV1);
1496                             }
1497                             break;
1498                         }
1499                         case REQUEST_INFO:
1500                             if (groupV1 != null && !isSync) {
1501                                 actions.add(new SendGroupUpdateAction(source, groupV1.groupId));
1502                             }
1503                             break;
1504                     }
1505                 } else {
1506                     // Received a group v1 message for a v2 group
1507                 }
1508             }
1509             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1510                 final SignalServiceGroupV2 groupContext = message.getGroupContext().get().getGroupV2().get();
1511                 final GroupMasterKey groupMasterKey = groupContext.getMasterKey();
1512
1513                 final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1514
1515                 byte[] groupId = groupSecretParams.getPublicParams().getGroupIdentifier().serialize();
1516                 GroupInfo groupInfo = account.getGroupStore().getGroupByV2Id(groupId);
1517                 if (groupInfo instanceof GroupInfoV1) {
1518                     // Received a v2 group message for a v2 group, we need to locally migrate the group
1519                     account.getGroupStore().deleteGroup(groupInfo.groupId);
1520                     GroupInfoV2 groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1521                     groupInfoV2.setGroup(getDecryptedGroup(groupSecretParams));
1522                     account.getGroupStore().updateGroup(groupInfoV2);
1523                     System.err.println("Locally migrated group "
1524                             + Base64.encodeBytes(groupInfo.groupId)
1525                             + " to group v2, id: "
1526                             + Base64.encodeBytes(groupInfoV2.groupId)
1527                             + " !!!");
1528                 } else if (groupInfo == null || groupInfo instanceof GroupInfoV2) {
1529                     GroupInfoV2 groupInfoV2 = groupInfo == null
1530                             ? new GroupInfoV2(groupId, groupMasterKey)
1531                             : (GroupInfoV2) groupInfo;
1532
1533                     if (groupInfoV2.getGroup() == null
1534                             || groupInfoV2.getGroup().getRevision() < groupContext.getRevision()) {
1535                         DecryptedGroup group = null;
1536                         if (groupContext.hasSignedGroupChange()
1537                                 && groupInfoV2.getGroup() != null
1538                                 && groupInfoV2.getGroup().getRevision() + 1 == groupContext.getRevision()) {
1539                             group = groupHelper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(),
1540                                     groupContext.getSignedGroupChange(),
1541                                     groupMasterKey);
1542                         }
1543                         if (group == null) {
1544                             group = getDecryptedGroup(groupSecretParams);
1545                         }
1546                         groupInfoV2.setGroup(group);
1547                         account.getGroupStore().updateGroup(groupInfoV2);
1548                     }
1549                 }
1550             }
1551         }
1552         final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;
1553         if (message.isEndSession()) {
1554             handleEndSession(conversationPartnerAddress);
1555         }
1556         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1557             if (message.getGroupContext().isPresent()) {
1558                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1559                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1560                     GroupInfoV1 group = account.getGroupStore().getOrCreateGroupV1(groupInfo.getGroupId());
1561                     if (group != null) {
1562                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1563                             group.messageExpirationTime = message.getExpiresInSeconds();
1564                             account.getGroupStore().updateGroup(group);
1565                         }
1566                     }
1567                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1568                     // disappearing message timer already stored in the DecryptedGroup
1569                 }
1570             } else {
1571                 ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
1572                 if (contact == null) {
1573                     contact = new ContactInfo(conversationPartnerAddress);
1574                 }
1575                 if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
1576                     contact.messageExpirationTime = message.getExpiresInSeconds();
1577                     account.getContactStore().updateContact(contact);
1578                 }
1579             }
1580         }
1581         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1582             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1583                 if (attachment.isPointer()) {
1584                     try {
1585                         retrieveAttachment(attachment.asPointer());
1586                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1587                         System.err.println("Failed to retrieve attachment ("
1588                                 + attachment.asPointer().getRemoteId()
1589                                 + "): "
1590                                 + e.getMessage());
1591                     }
1592                 }
1593             }
1594         }
1595         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1596             final ProfileKey profileKey;
1597             try {
1598                 profileKey = new ProfileKey(message.getProfileKey().get());
1599             } catch (InvalidInputException e) {
1600                 throw new AssertionError(e);
1601             }
1602             if (source.matches(account.getSelfAddress())) {
1603                 this.account.setProfileKey(profileKey);
1604             }
1605             this.account.getProfileStore().storeProfileKey(source, profileKey);
1606         }
1607         if (message.getPreviews().isPresent()) {
1608             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1609             for (SignalServiceDataMessage.Preview preview : previews) {
1610                 if (preview.getImage().isPresent() && preview.getImage().get().isPointer()) {
1611                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
1612                     try {
1613                         retrieveAttachment(attachment);
1614                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1615                         System.err.println("Failed to retrieve attachment ("
1616                                 + attachment.getRemoteId()
1617                                 + "): "
1618                                 + e.getMessage());
1619                     }
1620                 }
1621             }
1622         }
1623         if (message.getSticker().isPresent()) {
1624             final SignalServiceDataMessage.Sticker messageSticker = message.getSticker().get();
1625             Sticker sticker = account.getStickerStore().getSticker(messageSticker.getPackId());
1626             if (sticker == null) {
1627                 sticker = new Sticker(messageSticker.getPackId(), messageSticker.getPackKey());
1628                 account.getStickerStore().updateSticker(sticker);
1629             }
1630         }
1631         return actions;
1632     }
1633
1634     private DecryptedGroup getDecryptedGroup(final GroupSecretParams groupSecretParams) {
1635         try {
1636             final GroupsV2AuthorizationString groupsV2AuthorizationString = getGroupAuthForToday(groupSecretParams);
1637             DecryptedGroup group = groupsV2Api.getGroup(groupSecretParams, groupsV2AuthorizationString);
1638             for (DecryptedMember member : group.getMembersList()) {
1639                 final SignalServiceAddress address = resolveSignalServiceAddress(new SignalServiceAddress(UuidUtil.parseOrThrow(
1640                         member.getUuid().toByteArray()), null));
1641                 try {
1642                     account.getProfileStore()
1643                             .storeProfileKey(address, new ProfileKey(member.getProfileKey().toByteArray()));
1644                 } catch (InvalidInputException ignored) {
1645                 }
1646             }
1647             return group;
1648         } catch (IOException | VerificationFailedException | InvalidGroupStateException e) {
1649             System.err.println("Failed to retrieve Group V2 info, ignoring ...");
1650             return null;
1651         }
1652     }
1653
1654     private void retryFailedReceivedMessages(
1655             ReceiveMessageHandler handler, boolean ignoreAttachments
1656     ) {
1657         final File cachePath = new File(getMessageCachePath());
1658         if (!cachePath.exists()) {
1659             return;
1660         }
1661         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
1662             if (!dir.isDirectory()) {
1663                 retryFailedReceivedMessage(handler, ignoreAttachments, dir);
1664                 continue;
1665             }
1666
1667             for (final File fileEntry : Objects.requireNonNull(dir.listFiles())) {
1668                 if (!fileEntry.isFile()) {
1669                     continue;
1670                 }
1671                 retryFailedReceivedMessage(handler, ignoreAttachments, fileEntry);
1672             }
1673             // Try to delete directory if empty
1674             dir.delete();
1675         }
1676     }
1677
1678     private void retryFailedReceivedMessage(
1679             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final File fileEntry
1680     ) {
1681         SignalServiceEnvelope envelope;
1682         try {
1683             envelope = Utils.loadEnvelope(fileEntry);
1684             if (envelope == null) {
1685                 return;
1686             }
1687         } catch (IOException e) {
1688             e.printStackTrace();
1689             return;
1690         }
1691         SignalServiceContent content = null;
1692         if (!envelope.isReceipt()) {
1693             try {
1694                 content = decryptMessage(envelope);
1695             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1696                 return;
1697             } catch (Exception er) {
1698                 // All other errors are not recoverable, so delete the cached message
1699                 try {
1700                     Files.delete(fileEntry.toPath());
1701                 } catch (IOException e) {
1702                     System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1703                 }
1704                 return;
1705             }
1706             List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1707             for (HandleAction action : actions) {
1708                 try {
1709                     action.execute(this);
1710                 } catch (Throwable e) {
1711                     e.printStackTrace();
1712                 }
1713             }
1714         }
1715         account.save();
1716         handler.handleMessage(envelope, content, null);
1717         try {
1718             Files.delete(fileEntry.toPath());
1719         } catch (IOException e) {
1720             System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1721         }
1722     }
1723
1724     public void receiveMessages(
1725             long timeout,
1726             TimeUnit unit,
1727             boolean returnOnTimeout,
1728             boolean ignoreAttachments,
1729             ReceiveMessageHandler handler
1730     ) throws IOException {
1731         retryFailedReceivedMessages(handler, ignoreAttachments);
1732
1733         Set<HandleAction> queuedActions = null;
1734
1735         getOrCreateMessagePipe();
1736
1737         boolean hasCaughtUpWithOldMessages = false;
1738
1739         while (true) {
1740             SignalServiceEnvelope envelope;
1741             SignalServiceContent content = null;
1742             Exception exception = null;
1743             final long now = new Date().getTime();
1744             try {
1745                 Optional<SignalServiceEnvelope> result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1746                     // store message on disk, before acknowledging receipt to the server
1747                     try {
1748                         String source = envelope1.getSourceE164().isPresent() ? envelope1.getSourceE164().get() : "";
1749                         File cacheFile = getMessageCacheFile(source, now, envelope1.getTimestamp());
1750                         Utils.storeEnvelope(envelope1, cacheFile);
1751                     } catch (IOException e) {
1752                         System.err.println("Failed to store encrypted message in disk cache, ignoring: "
1753                                 + e.getMessage());
1754                     }
1755                 });
1756                 if (result.isPresent()) {
1757                     envelope = result.get();
1758                 } else {
1759                     // Received indicator that server queue is empty
1760                     hasCaughtUpWithOldMessages = true;
1761
1762                     if (queuedActions != null) {
1763                         for (HandleAction action : queuedActions) {
1764                             try {
1765                                 action.execute(this);
1766                             } catch (Throwable e) {
1767                                 e.printStackTrace();
1768                             }
1769                         }
1770                         account.save();
1771                         queuedActions.clear();
1772                         queuedActions = null;
1773                     }
1774
1775                     // Continue to wait another timeout for new messages
1776                     continue;
1777                 }
1778             } catch (TimeoutException e) {
1779                 if (returnOnTimeout) return;
1780                 continue;
1781             } catch (InvalidVersionException e) {
1782                 System.err.println("Ignoring error: " + e.getMessage());
1783                 continue;
1784             }
1785
1786             if (envelope.hasSource()) {
1787                 // Store uuid if we don't have it already
1788                 SignalServiceAddress source = envelope.getSourceAddress();
1789                 resolveSignalServiceAddress(source);
1790             }
1791             if (!envelope.isReceipt()) {
1792                 try {
1793                     content = decryptMessage(envelope);
1794                 } catch (Exception e) {
1795                     exception = e;
1796                 }
1797                 List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1798                 if (hasCaughtUpWithOldMessages) {
1799                     for (HandleAction action : actions) {
1800                         try {
1801                             action.execute(this);
1802                         } catch (Throwable e) {
1803                             e.printStackTrace();
1804                         }
1805                     }
1806                 } else {
1807                     if (queuedActions == null) {
1808                         queuedActions = new HashSet<>();
1809                     }
1810                     queuedActions.addAll(actions);
1811                 }
1812             }
1813             account.save();
1814             if (!isMessageBlocked(envelope, content)) {
1815                 handler.handleMessage(envelope, content, exception);
1816             }
1817             if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
1818                 File cacheFile = null;
1819                 try {
1820                     String source = envelope.getSourceE164().isPresent() ? envelope.getSourceE164().get() : "";
1821                     cacheFile = getMessageCacheFile(source, now, envelope.getTimestamp());
1822                     Files.delete(cacheFile.toPath());
1823                     // Try to delete directory if empty
1824                     new File(getMessageCachePath()).delete();
1825                 } catch (IOException e) {
1826                     System.err.println("Failed to delete cached message file “" + cacheFile + "”: " + e.getMessage());
1827                 }
1828             }
1829         }
1830     }
1831
1832     private boolean isMessageBlocked(
1833             SignalServiceEnvelope envelope, SignalServiceContent content
1834     ) {
1835         SignalServiceAddress source;
1836         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1837             source = envelope.getSourceAddress();
1838         } else if (content != null) {
1839             source = content.getSender();
1840         } else {
1841             return false;
1842         }
1843         ContactInfo sourceContact = account.getContactStore().getContact(source);
1844         if (sourceContact != null && sourceContact.blocked) {
1845             return true;
1846         }
1847
1848         if (content != null && content.getDataMessage().isPresent()) {
1849             SignalServiceDataMessage message = content.getDataMessage().get();
1850             if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1851                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1852                 GroupInfo group = getGroup(groupInfo.getGroupId());
1853                 return groupInfo.getType() == SignalServiceGroup.Type.DELIVER && group != null && group.isBlocked();
1854             }
1855         }
1856         return false;
1857     }
1858
1859     private List<HandleAction> handleMessage(
1860             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
1861     ) {
1862         List<HandleAction> actions = new ArrayList<>();
1863         if (content != null) {
1864             SignalServiceAddress sender;
1865             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1866                 sender = envelope.getSourceAddress();
1867             } else {
1868                 sender = content.getSender();
1869             }
1870             // Store uuid if we don't have it already
1871             resolveSignalServiceAddress(sender);
1872
1873             if (content.getDataMessage().isPresent()) {
1874                 SignalServiceDataMessage message = content.getDataMessage().get();
1875
1876                 if (content.isNeedsReceipt()) {
1877                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1878                 }
1879
1880                 actions.addAll(handleSignalServiceDataMessage(message,
1881                         false,
1882                         sender,
1883                         account.getSelfAddress(),
1884                         ignoreAttachments));
1885             }
1886             if (content.getSyncMessage().isPresent()) {
1887                 account.setMultiDevice(true);
1888                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1889                 if (syncMessage.getSent().isPresent()) {
1890                     SentTranscriptMessage message = syncMessage.getSent().get();
1891                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
1892                             true,
1893                             sender,
1894                             message.getDestination().orNull(),
1895                             ignoreAttachments));
1896                 }
1897                 if (syncMessage.getRequest().isPresent()) {
1898                     RequestMessage rm = syncMessage.getRequest().get();
1899                     if (rm.isContactsRequest()) {
1900                         actions.add(SendSyncContactsAction.create());
1901                     }
1902                     if (rm.isGroupsRequest()) {
1903                         actions.add(SendSyncGroupsAction.create());
1904                     }
1905                     if (rm.isBlockedListRequest()) {
1906                         actions.add(SendSyncBlockedListAction.create());
1907                     }
1908                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
1909                 }
1910                 if (syncMessage.getGroups().isPresent()) {
1911                     File tmpFile = null;
1912                     try {
1913                         tmpFile = IOUtils.createTempFile();
1914                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups()
1915                                 .get()
1916                                 .asPointer(), tmpFile)) {
1917                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1918                             DeviceGroup g;
1919                             while ((g = s.read()) != null) {
1920                                 GroupInfoV1 syncGroup = account.getGroupStore().getOrCreateGroupV1(g.getId());
1921                                 if (syncGroup != null) {
1922                                     if (g.getName().isPresent()) {
1923                                         syncGroup.name = g.getName().get();
1924                                     }
1925                                     syncGroup.addMembers(g.getMembers()
1926                                             .stream()
1927                                             .map(this::resolveSignalServiceAddress)
1928                                             .collect(Collectors.toSet()));
1929                                     if (!g.isActive()) {
1930                                         syncGroup.removeMember(account.getSelfAddress());
1931                                     } else {
1932                                         // Add ourself to the member set as it's marked as active
1933                                         syncGroup.addMembers(Collections.singleton(account.getSelfAddress()));
1934                                     }
1935                                     syncGroup.blocked = g.isBlocked();
1936                                     if (g.getColor().isPresent()) {
1937                                         syncGroup.color = g.getColor().get();
1938                                     }
1939
1940                                     if (g.getAvatar().isPresent()) {
1941                                         retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId);
1942                                     }
1943                                     syncGroup.inboxPosition = g.getInboxPosition().orNull();
1944                                     syncGroup.archived = g.isArchived();
1945                                     account.getGroupStore().updateGroup(syncGroup);
1946                                 }
1947                             }
1948                         }
1949                     } catch (Exception e) {
1950                         e.printStackTrace();
1951                     } finally {
1952                         if (tmpFile != null) {
1953                             try {
1954                                 Files.delete(tmpFile.toPath());
1955                             } catch (IOException e) {
1956                                 System.err.println("Failed to delete received groups temp file “"
1957                                         + tmpFile
1958                                         + "”: "
1959                                         + e.getMessage());
1960                             }
1961                         }
1962                     }
1963                 }
1964                 if (syncMessage.getBlockedList().isPresent()) {
1965                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1966                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1967                         setContactBlocked(resolveSignalServiceAddress(address), true);
1968                     }
1969                     for (byte[] groupId : blockedListMessage.getGroupIds()) {
1970                         try {
1971                             setGroupBlocked(groupId, true);
1972                         } catch (GroupNotFoundException e) {
1973                             System.err.println("BlockedListMessage contained groupID that was not found in GroupStore: "
1974                                     + Base64.encodeBytes(groupId));
1975                         }
1976                     }
1977                 }
1978                 if (syncMessage.getContacts().isPresent()) {
1979                     File tmpFile = null;
1980                     try {
1981                         tmpFile = IOUtils.createTempFile();
1982                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1983                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
1984                                 .asPointer(), tmpFile)) {
1985                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1986                             if (contactsMessage.isComplete()) {
1987                                 account.getContactStore().clear();
1988                             }
1989                             DeviceContact c;
1990                             while ((c = s.read()) != null) {
1991                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
1992                                     account.setProfileKey(c.getProfileKey().get());
1993                                 }
1994                                 final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
1995                                 ContactInfo contact = account.getContactStore().getContact(address);
1996                                 if (contact == null) {
1997                                     contact = new ContactInfo(address);
1998                                 }
1999                                 if (c.getName().isPresent()) {
2000                                     contact.name = c.getName().get();
2001                                 }
2002                                 if (c.getColor().isPresent()) {
2003                                     contact.color = c.getColor().get();
2004                                 }
2005                                 if (c.getProfileKey().isPresent()) {
2006                                     account.getProfileStore().storeProfileKey(address, c.getProfileKey().get());
2007                                 }
2008                                 if (c.getVerified().isPresent()) {
2009                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
2010                                     account.getSignalProtocolStore()
2011                                             .setIdentityTrustLevel(verifiedMessage.getDestination(),
2012                                                     verifiedMessage.getIdentityKey(),
2013                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2014                                 }
2015                                 if (c.getExpirationTimer().isPresent()) {
2016                                     contact.messageExpirationTime = c.getExpirationTimer().get();
2017                                 }
2018                                 contact.blocked = c.isBlocked();
2019                                 contact.inboxPosition = c.getInboxPosition().orNull();
2020                                 contact.archived = c.isArchived();
2021                                 account.getContactStore().updateContact(contact);
2022
2023                                 if (c.getAvatar().isPresent()) {
2024                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
2025                                 }
2026                             }
2027                         }
2028                     } catch (Exception e) {
2029                         e.printStackTrace();
2030                     } finally {
2031                         if (tmpFile != null) {
2032                             try {
2033                                 Files.delete(tmpFile.toPath());
2034                             } catch (IOException e) {
2035                                 System.err.println("Failed to delete received contacts temp file “"
2036                                         + tmpFile
2037                                         + "”: "
2038                                         + e.getMessage());
2039                             }
2040                         }
2041                     }
2042                 }
2043                 if (syncMessage.getVerified().isPresent()) {
2044                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
2045                     account.getSignalProtocolStore()
2046                             .setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()),
2047                                     verifiedMessage.getIdentityKey(),
2048                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2049                 }
2050                 if (syncMessage.getStickerPackOperations().isPresent()) {
2051                     final List<StickerPackOperationMessage> stickerPackOperationMessages = syncMessage.getStickerPackOperations()
2052                             .get();
2053                     for (StickerPackOperationMessage m : stickerPackOperationMessages) {
2054                         if (!m.getPackId().isPresent()) {
2055                             continue;
2056                         }
2057                         Sticker sticker = account.getStickerStore().getSticker(m.getPackId().get());
2058                         if (sticker == null) {
2059                             if (!m.getPackKey().isPresent()) {
2060                                 continue;
2061                             }
2062                             sticker = new Sticker(m.getPackId().get(), m.getPackKey().get());
2063                         }
2064                         sticker.setInstalled(!m.getType().isPresent()
2065                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2066                         account.getStickerStore().updateSticker(sticker);
2067                     }
2068                 }
2069                 if (syncMessage.getConfiguration().isPresent()) {
2070                     // TODO
2071                 }
2072             }
2073         }
2074         return actions;
2075     }
2076
2077     private File getContactAvatarFile(String number) {
2078         return new File(pathConfig.getAvatarsPath(), "contact-" + number);
2079     }
2080
2081     private File retrieveContactAvatarAttachment(
2082             SignalServiceAttachment attachment, String number
2083     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2084         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2085         if (attachment.isPointer()) {
2086             SignalServiceAttachmentPointer pointer = attachment.asPointer();
2087             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
2088         } else {
2089             SignalServiceAttachmentStream stream = attachment.asStream();
2090             return Utils.retrieveAttachment(stream, getContactAvatarFile(number));
2091         }
2092     }
2093
2094     private File getGroupAvatarFile(byte[] groupId) {
2095         return new File(pathConfig.getAvatarsPath(), "group-" + Base64.encodeBytes(groupId).replace("/", "_"));
2096     }
2097
2098     private File retrieveGroupAvatarAttachment(
2099             SignalServiceAttachment attachment, byte[] groupId
2100     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2101         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2102         if (attachment.isPointer()) {
2103             SignalServiceAttachmentPointer pointer = attachment.asPointer();
2104             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
2105         } else {
2106             SignalServiceAttachmentStream stream = attachment.asStream();
2107             return Utils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
2108         }
2109     }
2110
2111     private File getProfileAvatarFile(SignalServiceAddress address) {
2112         return new File(pathConfig.getAvatarsPath(), "profile-" + address.getLegacyIdentifier());
2113     }
2114
2115     private File retrieveProfileAvatar(
2116             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2117     ) throws IOException {
2118         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2119         SignalServiceMessageReceiver receiver = getOrCreateMessageReceiver();
2120         File outputFile = getProfileAvatarFile(address);
2121
2122         File tmpFile = IOUtils.createTempFile();
2123         try (InputStream input = receiver.retrieveProfileAvatar(avatarPath,
2124                 tmpFile,
2125                 profileKey,
2126                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2127             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2128             IOUtils.copyStreamToFile(input, outputFile, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2129         } finally {
2130             try {
2131                 Files.delete(tmpFile.toPath());
2132             } catch (IOException e) {
2133                 System.err.println("Failed to delete received avatar temp file “" + tmpFile + "”: " + e.getMessage());
2134             }
2135         }
2136         return outputFile;
2137     }
2138
2139     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2140         return new File(pathConfig.getAttachmentsPath(), attachmentId.toString());
2141     }
2142
2143     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException, MissingConfigurationException {
2144         IOUtils.createPrivateDirectories(pathConfig.getAttachmentsPath());
2145         return retrieveAttachment(pointer, getAttachmentFile(pointer.getRemoteId()), true);
2146     }
2147
2148     private File retrieveAttachment(
2149             SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview
2150     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2151         if (storePreview && pointer.getPreview().isPresent()) {
2152             File previewFile = new File(outputFile + ".preview");
2153             try (OutputStream output = new FileOutputStream(previewFile)) {
2154                 byte[] preview = pointer.getPreview().get();
2155                 output.write(preview, 0, preview.length);
2156             } catch (FileNotFoundException e) {
2157                 e.printStackTrace();
2158                 return null;
2159             }
2160         }
2161
2162         final SignalServiceMessageReceiver messageReceiver = getOrCreateMessageReceiver();
2163
2164         File tmpFile = IOUtils.createTempFile();
2165         try (InputStream input = messageReceiver.retrieveAttachment(pointer,
2166                 tmpFile,
2167                 ServiceConfig.MAX_ATTACHMENT_SIZE)) {
2168             IOUtils.copyStreamToFile(input, outputFile);
2169         } finally {
2170             try {
2171                 Files.delete(tmpFile.toPath());
2172             } catch (IOException e) {
2173                 System.err.println("Failed to delete received attachment temp file “"
2174                         + tmpFile
2175                         + "”: "
2176                         + e.getMessage());
2177             }
2178         }
2179         return outputFile;
2180     }
2181
2182     private InputStream retrieveAttachmentAsStream(
2183             SignalServiceAttachmentPointer pointer, File tmpFile
2184     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2185         final SignalServiceMessageReceiver messageReceiver = getOrCreateMessageReceiver();
2186         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2187     }
2188
2189     void sendGroups() throws IOException, UntrustedIdentityException {
2190         File groupsFile = IOUtils.createTempFile();
2191
2192         try {
2193             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2194                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
2195                 for (GroupInfo record : account.getGroupStore().getGroups()) {
2196                     if (record instanceof GroupInfoV1) {
2197                         GroupInfoV1 groupInfo = (GroupInfoV1) record;
2198                         out.write(new DeviceGroup(groupInfo.groupId,
2199                                 Optional.fromNullable(groupInfo.name),
2200                                 new ArrayList<>(groupInfo.getMembers()),
2201                                 createGroupAvatarAttachment(groupInfo.groupId),
2202                                 groupInfo.isMember(account.getSelfAddress()),
2203                                 Optional.of(groupInfo.messageExpirationTime),
2204                                 Optional.fromNullable(groupInfo.color),
2205                                 groupInfo.blocked,
2206                                 Optional.fromNullable(groupInfo.inboxPosition),
2207                                 groupInfo.archived));
2208                     }
2209                 }
2210             }
2211
2212             if (groupsFile.exists() && groupsFile.length() > 0) {
2213                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
2214                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2215                             .withStream(groupsFileStream)
2216                             .withContentType("application/octet-stream")
2217                             .withLength(groupsFile.length())
2218                             .build();
2219
2220                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2221                 }
2222             }
2223         } finally {
2224             try {
2225                 Files.delete(groupsFile.toPath());
2226             } catch (IOException e) {
2227                 System.err.println("Failed to delete groups temp file “" + groupsFile + "”: " + e.getMessage());
2228             }
2229         }
2230     }
2231
2232     public void sendContacts() throws IOException, UntrustedIdentityException {
2233         File contactsFile = IOUtils.createTempFile();
2234
2235         try {
2236             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2237                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
2238                 for (ContactInfo record : account.getContactStore().getContacts()) {
2239                     VerifiedMessage verifiedMessage = null;
2240                     JsonIdentityKeyStore.Identity currentIdentity = account.getSignalProtocolStore()
2241                             .getIdentity(record.getAddress());
2242                     if (currentIdentity != null) {
2243                         verifiedMessage = new VerifiedMessage(record.getAddress(),
2244                                 currentIdentity.getIdentityKey(),
2245                                 currentIdentity.getTrustLevel().toVerifiedState(),
2246                                 currentIdentity.getDateAdded().getTime());
2247                     }
2248
2249                     ProfileKey profileKey = account.getProfileStore().getProfileKey(record.getAddress());
2250                     out.write(new DeviceContact(record.getAddress(),
2251                             Optional.fromNullable(record.name),
2252                             createContactAvatarAttachment(record.number),
2253                             Optional.fromNullable(record.color),
2254                             Optional.fromNullable(verifiedMessage),
2255                             Optional.fromNullable(profileKey),
2256                             record.blocked,
2257                             Optional.of(record.messageExpirationTime),
2258                             Optional.fromNullable(record.inboxPosition),
2259                             record.archived));
2260                 }
2261
2262                 if (account.getProfileKey() != null) {
2263                     // Send our own profile key as well
2264                     out.write(new DeviceContact(account.getSelfAddress(),
2265                             Optional.absent(),
2266                             Optional.absent(),
2267                             Optional.absent(),
2268                             Optional.absent(),
2269                             Optional.of(account.getProfileKey()),
2270                             false,
2271                             Optional.absent(),
2272                             Optional.absent(),
2273                             false));
2274                 }
2275             }
2276
2277             if (contactsFile.exists() && contactsFile.length() > 0) {
2278                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
2279                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2280                             .withStream(contactsFileStream)
2281                             .withContentType("application/octet-stream")
2282                             .withLength(contactsFile.length())
2283                             .build();
2284
2285                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2286                 }
2287             }
2288         } finally {
2289             try {
2290                 Files.delete(contactsFile.toPath());
2291             } catch (IOException e) {
2292                 System.err.println("Failed to delete contacts temp file “" + contactsFile + "”: " + e.getMessage());
2293             }
2294         }
2295     }
2296
2297     void sendBlockedList() throws IOException, UntrustedIdentityException {
2298         List<SignalServiceAddress> addresses = new ArrayList<>();
2299         for (ContactInfo record : account.getContactStore().getContacts()) {
2300             if (record.blocked) {
2301                 addresses.add(record.getAddress());
2302             }
2303         }
2304         List<byte[]> groupIds = new ArrayList<>();
2305         for (GroupInfo record : account.getGroupStore().getGroups()) {
2306             if (record.isBlocked()) {
2307                 groupIds.add(record.groupId);
2308             }
2309         }
2310         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2311     }
2312
2313     private void sendVerifiedMessage(
2314             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2315     ) throws IOException, UntrustedIdentityException {
2316         VerifiedMessage verifiedMessage = new VerifiedMessage(destination,
2317                 identityKey,
2318                 trustLevel.toVerifiedState(),
2319                 System.currentTimeMillis());
2320         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2321     }
2322
2323     public List<ContactInfo> getContacts() {
2324         return account.getContactStore().getContacts();
2325     }
2326
2327     public ContactInfo getContact(String number) {
2328         return account.getContactStore().getContact(Util.getSignalServiceAddressFromIdentifier(number));
2329     }
2330
2331     public GroupInfo getGroup(byte[] groupId) {
2332         return account.getGroupStore().getGroup(groupId);
2333     }
2334
2335     public List<JsonIdentityKeyStore.Identity> getIdentities() {
2336         return account.getSignalProtocolStore().getIdentities();
2337     }
2338
2339     public List<JsonIdentityKeyStore.Identity> getIdentities(String number) throws InvalidNumberException {
2340         return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));
2341     }
2342
2343     /**
2344      * Trust this the identity with this fingerprint
2345      *
2346      * @param name        username of the identity
2347      * @param fingerprint Fingerprint
2348      */
2349     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2350         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2351         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2352         if (ids == null) {
2353             return false;
2354         }
2355         for (JsonIdentityKeyStore.Identity id : ids) {
2356             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
2357                 continue;
2358             }
2359
2360             account.getSignalProtocolStore()
2361                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2362             try {
2363                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2364             } catch (IOException | UntrustedIdentityException e) {
2365                 e.printStackTrace();
2366             }
2367             account.save();
2368             return true;
2369         }
2370         return false;
2371     }
2372
2373     /**
2374      * Trust this the identity with this safety number
2375      *
2376      * @param name         username of the identity
2377      * @param safetyNumber Safety number
2378      */
2379     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2380         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2381         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2382         if (ids == null) {
2383             return false;
2384         }
2385         for (JsonIdentityKeyStore.Identity id : ids) {
2386             if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {
2387                 continue;
2388             }
2389
2390             account.getSignalProtocolStore()
2391                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2392             try {
2393                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2394             } catch (IOException | UntrustedIdentityException e) {
2395                 e.printStackTrace();
2396             }
2397             account.save();
2398             return true;
2399         }
2400         return false;
2401     }
2402
2403     /**
2404      * Trust all keys of this identity without verification
2405      *
2406      * @param name username of the identity
2407      */
2408     public boolean trustIdentityAllKeys(String name) {
2409         SignalServiceAddress address = resolveSignalServiceAddress(name);
2410         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2411         if (ids == null) {
2412             return false;
2413         }
2414         for (JsonIdentityKeyStore.Identity id : ids) {
2415             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2416                 account.getSignalProtocolStore()
2417                         .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2418                 try {
2419                     sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2420                 } catch (IOException | UntrustedIdentityException e) {
2421                     e.printStackTrace();
2422                 }
2423             }
2424         }
2425         account.save();
2426         return true;
2427     }
2428
2429     public String computeSafetyNumber(
2430             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2431     ) {
2432         return Utils.computeSafetyNumber(account.getSelfAddress(),
2433                 getIdentityKeyPair().getPublicKey(),
2434                 theirAddress,
2435                 theirIdentityKey);
2436     }
2437
2438     void saveAccount() {
2439         account.save();
2440     }
2441
2442     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2443         String canonicalizedNumber = UuidUtil.isUuid(identifier)
2444                 ? identifier
2445                 : Util.canonicalizeNumber(identifier, account.getUsername());
2446         return resolveSignalServiceAddress(canonicalizedNumber);
2447     }
2448
2449     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2450         SignalServiceAddress address = Util.getSignalServiceAddressFromIdentifier(identifier);
2451
2452         return resolveSignalServiceAddress(address);
2453     }
2454
2455     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2456         if (address.matches(account.getSelfAddress())) {
2457             return account.getSelfAddress();
2458         }
2459
2460         return account.getRecipientStore().resolveServiceAddress(address);
2461     }
2462
2463     @Override
2464     public void close() throws IOException {
2465         if (messagePipe != null) {
2466             messagePipe.shutdown();
2467             messagePipe = null;
2468         }
2469
2470         if (unidentifiedMessagePipe != null) {
2471             unidentifiedMessagePipe.shutdown();
2472             unidentifiedMessagePipe = null;
2473         }
2474
2475         account.close();
2476     }
2477
2478     public interface ReceiveMessageHandler {
2479
2480         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2481     }
2482 }