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