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

   1 /*
   2   Copyright (C) 2015-2020 AsamK and contributors
   3
   4   This program is free software: you can redistribute it and/or modify
   5   it under the terms of the GNU General Public License as published by
   6   the Free Software Foundation, either version 3 of the License, or
   7   (at your option) any later version.
   8
   9   This program is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12   GNU General Public License for more details.
  13
  14   You should have received a copy of the GNU General Public License
  15   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.asamk.signal.manager;
  18
  19 import com.fasterxml.jackson.databind.ObjectMapper;
  20
  21 import org.asamk.signal.manager.groups.GroupId;
  22 import org.asamk.signal.manager.groups.GroupIdV1;
  23 import org.asamk.signal.manager.groups.GroupIdV2;
  24 import org.asamk.signal.manager.groups.GroupInviteLinkUrl;
  25 import org.asamk.signal.manager.groups.GroupNotFoundException;
  26 import org.asamk.signal.manager.groups.GroupUtils;
  27 import org.asamk.signal.manager.groups.NotAGroupMemberException;
  28 import org.asamk.signal.manager.helper.GroupHelper;
  29 import org.asamk.signal.manager.helper.ProfileHelper;
  30 import org.asamk.signal.manager.helper.UnidentifiedAccessHelper;
  31 import org.asamk.signal.manager.storage.SignalAccount;
  32 import org.asamk.signal.manager.storage.contacts.ContactInfo;
  33 import org.asamk.signal.manager.storage.groups.GroupInfo;
  34 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  35 import org.asamk.signal.manager.storage.groups.GroupInfoV2;
  36 import org.asamk.signal.manager.storage.profiles.SignalProfile;
  37 import org.asamk.signal.manager.storage.profiles.SignalProfileEntry;
  38 import org.asamk.signal.manager.storage.protocol.IdentityInfo;
  39 import org.asamk.signal.manager.storage.stickers.Sticker;
  40 import org.asamk.signal.util.IOUtils;
  41 import org.asamk.signal.util.Util;
  42 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  43 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  44 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  45 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  46 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  47 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  48 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  49 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  50 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  51 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  52 import org.signal.libsignal.metadata.SelfSendException;
  53 import org.signal.storageservice.protos.groups.GroupChange;
  54 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  55 import org.signal.storageservice.protos.groups.local.DecryptedGroupJoinInfo;
  56 import org.signal.storageservice.protos.groups.local.DecryptedMember;
  57 import org.signal.zkgroup.InvalidInputException;
  58 import org.signal.zkgroup.VerificationFailedException;
  59 import org.signal.zkgroup.auth.AuthCredentialResponse;
  60 import org.signal.zkgroup.groups.GroupMasterKey;
  61 import org.signal.zkgroup.groups.GroupSecretParams;
  62 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  63 import org.signal.zkgroup.profiles.ProfileKey;
  64 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  65 import org.slf4j.Logger;
  66 import org.slf4j.LoggerFactory;
  67 import org.whispersystems.libsignal.IdentityKey;
  68 import org.whispersystems.libsignal.IdentityKeyPair;
  69 import org.whispersystems.libsignal.InvalidKeyException;
  70 import org.whispersystems.libsignal.InvalidMessageException;
  71 import org.whispersystems.libsignal.InvalidVersionException;
  72 import org.whispersystems.libsignal.ecc.Curve;
  73 import org.whispersystems.libsignal.ecc.ECKeyPair;
  74 import org.whispersystems.libsignal.ecc.ECPublicKey;
  75 import org.whispersystems.libsignal.state.PreKeyRecord;
  76 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  77 import org.whispersystems.libsignal.util.KeyHelper;
  78 import org.whispersystems.libsignal.util.Medium;
  79 import org.whispersystems.libsignal.util.Pair;
  80 import org.whispersystems.libsignal.util.guava.Optional;
  81 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  82 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  83 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  84 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  85 import org.whispersystems.signalservice.api.crypto.InvalidCiphertextException;
  86 import org.whispersystems.signalservice.api.crypto.ProfileCipher;
  87 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  88 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
  89 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  90 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  91 import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException;
  92 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
  93 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  94 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  95 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  96 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  97 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  98 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
  99 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
 100 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
 101 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
 102 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
 103 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 104 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
 105 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
 106 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload;
 107 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload.StickerInfo;
 108 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
 109 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
 110 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
 111 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
 112 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 113 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 114 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 115 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 116 import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
 117 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 118 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 119 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 120 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 121 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 122 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
 123 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 124 import org.whispersystems.signalservice.api.push.ContactTokenDetails;
 125 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 126 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 127 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 128 import org.whispersystems.signalservice.api.util.SleepTimer;
 129 import org.whispersystems.signalservice.api.util.StreamDetails;
 130 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 131 import org.whispersystems.signalservice.api.util.UuidUtil;
 132 import org.whispersystems.signalservice.internal.configuration.SignalServiceConfiguration;
 133 import org.whispersystems.signalservice.internal.contacts.crypto.Quote;
 134 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedQuoteException;
 135 import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 136 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 137 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 138 import org.whispersystems.signalservice.internal.push.VerifyAccountResponse;
 139 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 140 import org.whispersystems.signalservice.internal.util.Hex;
 141 import org.whispersystems.util.Base64;
 142
 143 import java.io.Closeable;
 144 import java.io.File;
 145 import java.io.FileInputStream;
 146 import java.io.FileNotFoundException;
 147 import java.io.FileOutputStream;
 148 import java.io.IOException;
 149 import java.io.InputStream;
 150 import java.io.OutputStream;
 151 import java.net.URI;
 152 import java.net.URISyntaxException;
 153 import java.net.URLEncoder;
 154 import java.nio.charset.StandardCharsets;
 155 import java.nio.file.Files;
 156 import java.nio.file.Paths;
 157 import java.nio.file.StandardCopyOption;
 158 import java.security.SignatureException;
 159 import java.util.ArrayList;
 160 import java.util.Arrays;
 161 import java.util.Collection;
 162 import java.util.Collections;
 163 import java.util.Date;
 164 import java.util.HashMap;
 165 import java.util.HashSet;
 166 import java.util.List;
 167 import java.util.Locale;
 168 import java.util.Map;
 169 import java.util.Objects;
 170 import java.util.Set;
 171 import java.util.UUID;
 172 import java.util.concurrent.ExecutorService;
 173 import java.util.concurrent.TimeUnit;
 174 import java.util.concurrent.TimeoutException;
 175 import java.util.stream.Collectors;
 176 import java.util.zip.ZipEntry;
 177 import java.util.zip.ZipFile;
 178
 179 import static org.asamk.signal.manager.ServiceConfig.CDS_MRENCLAVE;
 180 import static org.asamk.signal.manager.ServiceConfig.capabilities;
 181 import static org.asamk.signal.manager.ServiceConfig.getIasKeyStore;
 182
 183 public class Manager implements Closeable {
 184
 185     final static Logger logger = LoggerFactory.getLogger(Manager.class);
 186
 187     private final SleepTimer timer = new UptimeSleepTimer();
 188
 189     private final SignalServiceConfiguration serviceConfiguration;
 190     private final String userAgent;
 191     private final boolean discoverableByPhoneNumber = true;
 192     private final boolean unrestrictedUnidentifiedAccess = false;
 193
 194     private final SignalAccount account;
 195     private final PathConfig pathConfig;
 196     private SignalServiceAccountManager accountManager;
 197     private GroupsV2Api groupsV2Api;
 198     private final GroupsV2Operations groupsV2Operations;
 199
 200     private SignalServiceMessageReceiver messageReceiver = null;
 201     private SignalServiceMessagePipe messagePipe = null;
 202     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 203
 204     private final UnidentifiedAccessHelper unidentifiedAccessHelper;
 205     private final ProfileHelper profileHelper;
 206     private final GroupHelper groupHelper;
 207
 208     public Manager(
 209             SignalAccount account,
 210             PathConfig pathConfig,
 211             SignalServiceConfiguration serviceConfiguration,
 212             String userAgent
 213     ) {
 214         this.account = account;
 215         this.pathConfig = pathConfig;
 216         this.serviceConfiguration = serviceConfiguration;
 217         this.userAgent = userAgent;
 218         this.groupsV2Operations = capabilities.isGv2() ? new GroupsV2Operations(ClientZkOperations.create(
 219                 serviceConfiguration)) : null;
 220         this.accountManager = createSignalServiceAccountManager();
 221         this.groupsV2Api = accountManager.getGroupsV2Api();
 222
 223         this.account.setResolver(this::resolveSignalServiceAddress);
 224
 225         this.unidentifiedAccessHelper = new UnidentifiedAccessHelper(account::getProfileKey,
 226                 account.getProfileStore()::getProfileKey,
 227                 this::getRecipientProfile,
 228                 this::getSenderCertificate);
 229         this.profileHelper = new ProfileHelper(account.getProfileStore()::getProfileKey,
 230                 unidentifiedAccessHelper::getAccessFor,
 231                 unidentified -> unidentified ? getOrCreateUnidentifiedMessagePipe() : getOrCreateMessagePipe(),
 232                 this::getOrCreateMessageReceiver);
 233         this.groupHelper = new GroupHelper(this::getRecipientProfileKeyCredential,
 234                 this::getRecipientProfile,
 235                 account::getSelfAddress,
 236                 groupsV2Operations,
 237                 groupsV2Api,
 238                 this::getGroupAuthForToday);
 239     }
 240
 241     public String getUsername() {
 242         return account.getUsername();
 243     }
 244
 245     public SignalServiceAddress getSelfAddress() {
 246         return account.getSelfAddress();
 247     }
 248
 249     private SignalServiceAccountManager createSignalServiceAccountManager() {
 250         return new SignalServiceAccountManager(serviceConfiguration,
 251                 new DynamicCredentialsProvider(account.getUuid(),
 252                         account.getUsername(),
 253                         account.getPassword(),
 254                         null,
 255                         account.getDeviceId()),
 256                 userAgent,
 257                 groupsV2Operations,
 258                 timer);
 259     }
 260
 261     private IdentityKeyPair getIdentityKeyPair() {
 262         return account.getSignalProtocolStore().getIdentityKeyPair();
 263     }
 264
 265     public int getDeviceId() {
 266         return account.getDeviceId();
 267     }
 268
 269     private File getMessageCachePath() {
 270         return SignalAccount.getMessageCachePath(pathConfig.getDataPath(), account.getUsername());
 271     }
 272
 273     private File getMessageCachePath(String sender) {
 274         if (sender == null || sender.isEmpty()) {
 275             return getMessageCachePath();
 276         }
 277
 278         return new File(getMessageCachePath(), sender.replace("/", "_"));
 279     }
 280
 281     private File getMessageCacheFile(String sender, long now, long timestamp) throws IOException {
 282         File cachePath = getMessageCachePath(sender);
 283         IOUtils.createPrivateDirectories(cachePath);
 284         return new File(cachePath, now + "_" + timestamp);
 285     }
 286
 287     public static Manager init(
 288             String username, File settingsPath, SignalServiceConfiguration serviceConfiguration, String userAgent
 289     ) throws IOException {
 290         PathConfig pathConfig = PathConfig.createDefault(settingsPath);
 291
 292         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 293             IdentityKeyPair identityKey = KeyHelper.generateIdentityKeyPair();
 294             int registrationId = KeyHelper.generateRegistrationId(false);
 295
 296             ProfileKey profileKey = KeyUtils.createProfileKey();
 297             SignalAccount account = SignalAccount.create(pathConfig.getDataPath(),
 298                     username,
 299                     identityKey,
 300                     registrationId,
 301                     profileKey);
 302             account.save();
 303
 304             return new Manager(account, pathConfig, serviceConfiguration, userAgent);
 305         }
 306
 307         SignalAccount account = SignalAccount.load(pathConfig.getDataPath(), username);
 308
 309         Manager m = new Manager(account, pathConfig, serviceConfiguration, userAgent);
 310
 311         m.migrateLegacyConfigs();
 312
 313         return m;
 314     }
 315
 316     private void migrateLegacyConfigs() {
 317         if (account.getProfileKey() == null && isRegistered()) {
 318             // Old config file, creating new profile key
 319             account.setProfileKey(KeyUtils.createProfileKey());
 320             account.save();
 321         }
 322         // Store profile keys only in profile store
 323         for (ContactInfo contact : account.getContactStore().getContacts()) {
 324             String profileKeyString = contact.profileKey;
 325             if (profileKeyString == null) {
 326                 continue;
 327             }
 328             final ProfileKey profileKey;
 329             try {
 330                 profileKey = new ProfileKey(Base64.decode(profileKeyString));
 331             } catch (InvalidInputException | IOException e) {
 332                 continue;
 333             }
 334             contact.profileKey = null;
 335             account.getProfileStore().storeProfileKey(contact.getAddress(), profileKey);
 336         }
 337         // Ensure our profile key is stored in profile store
 338         account.getProfileStore().storeProfileKey(getSelfAddress(), account.getProfileKey());
 339     }
 340
 341     public void checkAccountState() throws IOException {
 342         if (account.isRegistered()) {
 343             if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 344                 refreshPreKeys();
 345                 account.save();
 346             }
 347             if (account.getUuid() == null) {
 348                 account.setUuid(accountManager.getOwnUuid());
 349                 account.save();
 350             }
 351             updateAccountAttributes();
 352         }
 353     }
 354
 355     public boolean isRegistered() {
 356         return account.isRegistered();
 357     }
 358
 359     public void register(boolean voiceVerification, String captcha) throws IOException {
 360         account.setPassword(KeyUtils.createPassword());
 361
 362         // Resetting UUID, because registering doesn't work otherwise
 363         account.setUuid(null);
 364         accountManager = createSignalServiceAccountManager();
 365         this.groupsV2Api = accountManager.getGroupsV2Api();
 366
 367         if (voiceVerification) {
 368             accountManager.requestVoiceVerificationCode(Locale.getDefault(),
 369                     Optional.fromNullable(captcha),
 370                     Optional.absent());
 371         } else {
 372             accountManager.requestSmsVerificationCode(false, Optional.fromNullable(captcha), Optional.absent());
 373         }
 374
 375         account.setRegistered(false);
 376         account.save();
 377     }
 378
 379     public void updateAccountAttributes() throws IOException {
 380         accountManager.setAccountAttributes(account.getSignalingKey(),
 381                 account.getSignalProtocolStore().getLocalRegistrationId(),
 382                 true,
 383                 account.getRegistrationLockPin(),
 384                 account.getRegistrationLock(),
 385                 unidentifiedAccessHelper.getSelfUnidentifiedAccessKey(),
 386                 unrestrictedUnidentifiedAccess,
 387                 capabilities,
 388                 discoverableByPhoneNumber);
 389     }
 390
 391     public void setProfile(String name, File avatar) throws IOException {
 392         try (final StreamDetails streamDetails = avatar == null ? null : Utils.createStreamDetailsFromFile(avatar)) {
 393             accountManager.setVersionedProfile(account.getUuid(), account.getProfileKey(), name, streamDetails);
 394         }
 395     }
 396
 397     public void unregister() throws IOException {
 398         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 399         // If this is the master device, other users can't send messages to this number anymore.
 400         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 401         accountManager.setGcmId(Optional.absent());
 402
 403         account.setRegistered(false);
 404         account.save();
 405     }
 406
 407     public List<DeviceInfo> getLinkedDevices() throws IOException {
 408         List<DeviceInfo> devices = accountManager.getDevices();
 409         account.setMultiDevice(devices.size() > 1);
 410         account.save();
 411         return devices;
 412     }
 413
 414     public void removeLinkedDevices(int deviceId) throws IOException {
 415         accountManager.removeDevice(deviceId);
 416         List<DeviceInfo> devices = accountManager.getDevices();
 417         account.setMultiDevice(devices.size() > 1);
 418         account.save();
 419     }
 420
 421     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 422         Utils.DeviceLinkInfo info = Utils.parseDeviceLinkUri(linkUri);
 423
 424         addDevice(info.deviceIdentifier, info.deviceKey);
 425     }
 426
 427     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 428         IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 429         String verificationCode = accountManager.getNewDeviceVerificationCode();
 430
 431         accountManager.addDevice(deviceIdentifier,
 432                 deviceKey,
 433                 identityKeyPair,
 434                 Optional.of(account.getProfileKey().serialize()),
 435                 verificationCode);
 436         account.setMultiDevice(true);
 437         account.save();
 438     }
 439
 440     private List<PreKeyRecord> generatePreKeys() {
 441         List<PreKeyRecord> records = new ArrayList<>(ServiceConfig.PREKEY_BATCH_SIZE);
 442
 443         final int offset = account.getPreKeyIdOffset();
 444         for (int i = 0; i < ServiceConfig.PREKEY_BATCH_SIZE; i++) {
 445             int preKeyId = (offset + i) % Medium.MAX_VALUE;
 446             ECKeyPair keyPair = Curve.generateKeyPair();
 447             PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);
 448
 449             records.add(record);
 450         }
 451
 452         account.addPreKeys(records);
 453         account.save();
 454
 455         return records;
 456     }
 457
 458     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 459         try {
 460             ECKeyPair keyPair = Curve.generateKeyPair();
 461             byte[] signature = Curve.calculateSignature(identityKeyPair.getPrivateKey(),
 462                     keyPair.getPublicKey().serialize());
 463             SignedPreKeyRecord record = new SignedPreKeyRecord(account.getNextSignedPreKeyId(),
 464                     System.currentTimeMillis(),
 465                     keyPair,
 466                     signature);
 467
 468             account.addSignedPreKey(record);
 469             account.save();
 470
 471             return record;
 472         } catch (InvalidKeyException e) {
 473             throw new AssertionError(e);
 474         }
 475     }
 476
 477     public void verifyAccount(String verificationCode, String pin) throws IOException {
 478         verificationCode = verificationCode.replace("-", "");
 479         account.setSignalingKey(KeyUtils.createSignalingKey());
 480         // TODO make unrestricted unidentified access configurable
 481         VerifyAccountResponse response = accountManager.verifyAccountWithCode(verificationCode,
 482                 account.getSignalingKey(),
 483                 account.getSignalProtocolStore().getLocalRegistrationId(),
 484                 true,
 485                 pin,
 486                 null,
 487                 unidentifiedAccessHelper.getSelfUnidentifiedAccessKey(),
 488                 unrestrictedUnidentifiedAccess,
 489                 capabilities,
 490                 discoverableByPhoneNumber);
 491
 492         UUID uuid = UuidUtil.parseOrNull(response.getUuid());
 493         // TODO response.isStorageCapable()
 494         //accountManager.setGcmId(Optional.of(GoogleCloudMessaging.getInstance(this).register(REGISTRATION_ID)));
 495         account.setRegistered(true);
 496         account.setUuid(uuid);
 497         account.setRegistrationLockPin(pin);
 498         account.getSignalProtocolStore()
 499                 .saveIdentity(account.getSelfAddress(),
 500                         getIdentityKeyPair().getPublicKey(),
 501                         TrustLevel.TRUSTED_VERIFIED);
 502
 503         refreshPreKeys();
 504         account.save();
 505     }
 506
 507     public void setRegistrationLockPin(Optional<String> pin) throws IOException {
 508         if (pin.isPresent()) {
 509             account.setRegistrationLockPin(pin.get());
 510             throw new RuntimeException("Not implemented anymore, will be replaced with KBS");
 511         } else {
 512             account.setRegistrationLockPin(null);
 513             accountManager.removeRegistrationLockV1();
 514         }
 515         account.save();
 516     }
 517
 518     void refreshPreKeys() throws IOException {
 519         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 520         final IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 521         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 522
 523         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 524     }
 525
 526     private SignalServiceMessageReceiver createMessageReceiver() {
 527         final ClientZkProfileOperations clientZkProfileOperations = capabilities.isGv2() ? ClientZkOperations.create(
 528                 serviceConfiguration).getProfileOperations() : null;
 529         return new SignalServiceMessageReceiver(serviceConfiguration,
 530                 account.getUuid(),
 531                 account.getUsername(),
 532                 account.getPassword(),
 533                 account.getDeviceId(),
 534                 account.getSignalingKey(),
 535                 userAgent,
 536                 null,
 537                 timer,
 538                 clientZkProfileOperations);
 539     }
 540
 541     private SignalServiceMessageReceiver getOrCreateMessageReceiver() {
 542         if (messageReceiver == null) {
 543             messageReceiver = createMessageReceiver();
 544         }
 545         return messageReceiver;
 546     }
 547
 548     private SignalServiceMessagePipe getOrCreateMessagePipe() {
 549         if (messagePipe == null) {
 550             messagePipe = getOrCreateMessageReceiver().createMessagePipe();
 551         }
 552         return messagePipe;
 553     }
 554
 555     private SignalServiceMessagePipe getOrCreateUnidentifiedMessagePipe() {
 556         if (unidentifiedMessagePipe == null) {
 557             unidentifiedMessagePipe = getOrCreateMessageReceiver().createUnidentifiedMessagePipe();
 558         }
 559         return unidentifiedMessagePipe;
 560     }
 561
 562     private SignalServiceMessageSender createMessageSender() {
 563         final ClientZkProfileOperations clientZkProfileOperations = capabilities.isGv2() ? ClientZkOperations.create(
 564                 serviceConfiguration).getProfileOperations() : null;
 565         final ExecutorService executor = null;
 566         return new SignalServiceMessageSender(serviceConfiguration,
 567                 account.getUuid(),
 568                 account.getUsername(),
 569                 account.getPassword(),
 570                 account.getDeviceId(),
 571                 account.getSignalProtocolStore(),
 572                 userAgent,
 573                 account.isMultiDevice(),
 574                 Optional.fromNullable(messagePipe),
 575                 Optional.fromNullable(unidentifiedMessagePipe),
 576                 Optional.absent(),
 577                 clientZkProfileOperations,
 578                 executor,
 579                 ServiceConfig.MAX_ENVELOPE_SIZE);
 580     }
 581
 582     private SignalServiceProfile getEncryptedRecipientProfile(SignalServiceAddress address) throws IOException {
 583         return profileHelper.retrieveProfileSync(address, SignalServiceProfile.RequestType.PROFILE).getProfile();
 584     }
 585
 586     private SignalProfile getRecipientProfile(
 587             SignalServiceAddress address
 588     ) {
 589         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
 590         if (profileEntry == null) {
 591             return null;
 592         }
 593         long now = new Date().getTime();
 594         // Profiles are cache for 24h before retrieving them again
 595         if (!profileEntry.isRequestPending() && (
 596                 profileEntry.getProfile() == null || now - profileEntry.getLastUpdateTimestamp() > 24 * 60 * 60 * 1000
 597         )) {
 598             ProfileKey profileKey = profileEntry.getProfileKey();
 599             profileEntry.setRequestPending(true);
 600             SignalProfile profile;
 601             try {
 602                 profile = retrieveRecipientProfile(address, profileKey);
 603             } catch (IOException e) {
 604                 logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 605                 profileEntry.setRequestPending(false);
 606                 return null;
 607             }
 608             profileEntry.setRequestPending(false);
 609             account.getProfileStore()
 610                     .updateProfile(address, profileKey, now, profile, profileEntry.getProfileKeyCredential());
 611             return profile;
 612         }
 613         return profileEntry.getProfile();
 614     }
 615
 616     private ProfileKeyCredential getRecipientProfileKeyCredential(SignalServiceAddress address) {
 617         SignalProfileEntry profileEntry = account.getProfileStore().getProfileEntry(address);
 618         if (profileEntry == null) {
 619             return null;
 620         }
 621         if (profileEntry.getProfileKeyCredential() == null) {
 622             ProfileAndCredential profileAndCredential;
 623             try {
 624                 profileAndCredential = profileHelper.retrieveProfileSync(address,
 625                         SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
 626             } catch (IOException e) {
 627                 logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
 628                 return null;
 629             }
 630
 631             long now = new Date().getTime();
 632             final ProfileKeyCredential profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
 633             final SignalProfile profile = decryptProfile(address,
 634                     profileEntry.getProfileKey(),
 635                     profileAndCredential.getProfile());
 636             account.getProfileStore()
 637                     .updateProfile(address, profileEntry.getProfileKey(), now, profile, profileKeyCredential);
 638             return profileKeyCredential;
 639         }
 640         return profileEntry.getProfileKeyCredential();
 641     }
 642
 643     private SignalProfile retrieveRecipientProfile(
 644             SignalServiceAddress address, ProfileKey profileKey
 645     ) throws IOException {
 646         final SignalServiceProfile encryptedProfile = getEncryptedRecipientProfile(address);
 647
 648         return decryptProfile(address, profileKey, encryptedProfile);
 649     }
 650
 651     private SignalProfile decryptProfile(
 652             final SignalServiceAddress address, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 653     ) {
 654         File avatarFile = null;
 655         try {
 656             avatarFile = encryptedProfile.getAvatar() == null
 657                     ? null
 658                     : retrieveProfileAvatar(address, encryptedProfile.getAvatar(), profileKey);
 659         } catch (Throwable e) {
 660             logger.warn("Failed to retrieve profile avatar, ignoring: {}", e.getMessage());
 661         }
 662
 663         ProfileCipher profileCipher = new ProfileCipher(profileKey);
 664         try {
 665             String name;
 666             try {
 667                 name = encryptedProfile.getName() == null
 668                         ? null
 669                         : new String(profileCipher.decryptName(Base64.decode(encryptedProfile.getName())));
 670             } catch (IOException e) {
 671                 name = null;
 672             }
 673             String unidentifiedAccess;
 674             try {
 675                 unidentifiedAccess = encryptedProfile.getUnidentifiedAccess() == null
 676                         || !profileCipher.verifyUnidentifiedAccess(Base64.decode(encryptedProfile.getUnidentifiedAccess()))
 677                         ? null
 678                         : encryptedProfile.getUnidentifiedAccess();
 679             } catch (IOException e) {
 680                 unidentifiedAccess = null;
 681             }
 682             return new SignalProfile(encryptedProfile.getIdentityKey(),
 683                     name,
 684                     avatarFile,
 685                     unidentifiedAccess,
 686                     encryptedProfile.isUnrestrictedUnidentifiedAccess(),
 687                     encryptedProfile.getCapabilities());
 688         } catch (InvalidCiphertextException e) {
 689             return null;
 690         }
 691     }
 692
 693     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(GroupId groupId) throws IOException {
 694         File file = getGroupAvatarFile(groupId);
 695         if (!file.exists()) {
 696             return Optional.absent();
 697         }
 698
 699         return Optional.of(Utils.createAttachment(file));
 700     }
 701
 702     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(String number) throws IOException {
 703         File file = getContactAvatarFile(number);
 704         if (!file.exists()) {
 705             return Optional.absent();
 706         }
 707
 708         return Optional.of(Utils.createAttachment(file));
 709     }
 710
 711     private GroupInfo getGroupForSending(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())) {
 717             throw new NotAGroupMemberException(groupId, g.getTitle());
 718         }
 719         return g;
 720     }
 721
 722     private GroupInfo getGroupForUpdating(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 723         GroupInfo g = account.getGroupStore().getGroup(groupId);
 724         if (g == null) {
 725             throw new GroupNotFoundException(groupId);
 726         }
 727         if (!g.isMember(account.getSelfAddress()) && !g.isPendingMember(account.getSelfAddress())) {
 728             throw new NotAGroupMemberException(groupId, g.getTitle());
 729         }
 730         return g;
 731     }
 732
 733     public List<GroupInfo> getGroups() {
 734         return account.getGroupStore().getGroups();
 735     }
 736
 737     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 738             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId
 739     ) throws IOException, GroupNotFoundException, NotAGroupMemberException {
 740         final GroupInfo g = getGroupForSending(groupId);
 741
 742         GroupUtils.setGroupContext(messageBuilder, g);
 743         messageBuilder.withExpiration(g.getMessageExpirationTime());
 744
 745         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 746     }
 747
 748     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 749             String messageText, List<String> attachments, GroupId groupId
 750     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 751         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 752                 .withBody(messageText);
 753         if (attachments != null) {
 754             messageBuilder.withAttachments(Utils.getSignalServiceAttachments(attachments));
 755         }
 756
 757         return sendGroupMessage(messageBuilder, groupId);
 758     }
 759
 760     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(
 761             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, GroupId groupId
 762     ) throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 763         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
 764                 remove,
 765                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
 766                 targetSentTimestamp);
 767         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 768                 .withReaction(reaction);
 769
 770         return sendGroupMessage(messageBuilder, groupId);
 771     }
 772
 773     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(GroupId groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 774
 775         SignalServiceDataMessage.Builder messageBuilder;
 776
 777         final GroupInfo g = getGroupForUpdating(groupId);
 778         if (g instanceof GroupInfoV1) {
 779             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
 780             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 781                     .withId(groupId.serialize())
 782                     .build();
 783             messageBuilder = SignalServiceDataMessage.newBuilder().asGroupMessage(group);
 784             groupInfoV1.removeMember(account.getSelfAddress());
 785             account.getGroupStore().updateGroup(groupInfoV1);
 786         } else {
 787             final GroupInfoV2 groupInfoV2 = (GroupInfoV2) g;
 788             final Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.leaveGroup(groupInfoV2);
 789             groupInfoV2.setGroup(groupGroupChangePair.first());
 790             messageBuilder = getGroupUpdateMessageBuilder(groupInfoV2, groupGroupChangePair.second().toByteArray());
 791             account.getGroupStore().updateGroup(groupInfoV2);
 792         }
 793
 794         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 795     }
 796
 797     private Pair<GroupId, List<SendMessageResult>> sendUpdateGroupMessage(
 798             GroupId groupId, String name, Collection<SignalServiceAddress> members, String avatarFile
 799     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 800         GroupInfo g;
 801         SignalServiceDataMessage.Builder messageBuilder;
 802         if (groupId == null) {
 803             // Create new group
 804             GroupInfoV2 gv2 = groupHelper.createGroupV2(name, members, avatarFile);
 805             if (gv2 == null) {
 806                 GroupInfoV1 gv1 = new GroupInfoV1(GroupIdV1.createRandom());
 807                 gv1.addMembers(Collections.singleton(account.getSelfAddress()));
 808                 updateGroupV1(gv1, name, members, avatarFile);
 809                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 810                 g = gv1;
 811             } else {
 812                 messageBuilder = getGroupUpdateMessageBuilder(gv2, null);
 813                 g = gv2;
 814             }
 815         } else {
 816             GroupInfo group = getGroupForUpdating(groupId);
 817             if (group instanceof GroupInfoV2) {
 818                 final GroupInfoV2 groupInfoV2 = (GroupInfoV2) group;
 819
 820                 Pair<Long, List<SendMessageResult>> result = null;
 821                 if (groupInfoV2.isPendingMember(getSelfAddress())) {
 822                     Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.acceptInvite(groupInfoV2);
 823                     result = sendUpdateGroupMessage(groupInfoV2,
 824                             groupGroupChangePair.first(),
 825                             groupGroupChangePair.second());
 826                 }
 827
 828                 if (members != null) {
 829                     final Set<SignalServiceAddress> newMembers = new HashSet<>(members);
 830                     newMembers.removeAll(group.getMembers()
 831                             .stream()
 832                             .map(this::resolveSignalServiceAddress)
 833                             .collect(Collectors.toSet()));
 834                     if (newMembers.size() > 0) {
 835                         Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2,
 836                                 newMembers);
 837                         result = sendUpdateGroupMessage(groupInfoV2,
 838                                 groupGroupChangePair.first(),
 839                                 groupGroupChangePair.second());
 840                     }
 841                 }
 842                 if (result == null || name != null || avatarFile != null) {
 843                     Pair<DecryptedGroup, GroupChange> groupGroupChangePair = groupHelper.updateGroupV2(groupInfoV2,
 844                             name,
 845                             avatarFile);
 846                     result = sendUpdateGroupMessage(groupInfoV2,
 847                             groupGroupChangePair.first(),
 848                             groupGroupChangePair.second());
 849                 }
 850
 851                 return new Pair<>(group.getGroupId(), result.second());
 852             } else {
 853                 GroupInfoV1 gv1 = (GroupInfoV1) group;
 854                 updateGroupV1(gv1, name, members, avatarFile);
 855                 messageBuilder = getGroupUpdateMessageBuilder(gv1);
 856                 g = gv1;
 857             }
 858         }
 859
 860         account.getGroupStore().updateGroup(g);
 861
 862         final Pair<Long, List<SendMessageResult>> result = sendMessage(messageBuilder,
 863                 g.getMembersIncludingPendingWithout(account.getSelfAddress()));
 864         return new Pair<>(g.getGroupId(), result.second());
 865     }
 866
 867     public Pair<GroupId, List<SendMessageResult>> joinGroup(
 868             GroupInviteLinkUrl inviteLinkUrl
 869     ) throws IOException, GroupLinkNotActiveException {
 870         return sendJoinGroupMessage(inviteLinkUrl);
 871     }
 872
 873     private Pair<GroupId, List<SendMessageResult>> sendJoinGroupMessage(
 874             GroupInviteLinkUrl inviteLinkUrl
 875     ) throws IOException, GroupLinkNotActiveException {
 876         final DecryptedGroupJoinInfo groupJoinInfo = groupHelper.getDecryptedGroupJoinInfo(inviteLinkUrl.getGroupMasterKey(),
 877                 inviteLinkUrl.getPassword());
 878         final GroupChange groupChange = groupHelper.joinGroup(inviteLinkUrl.getGroupMasterKey(),
 879                 inviteLinkUrl.getPassword(),
 880                 groupJoinInfo);
 881         final GroupInfoV2 group = getOrMigrateGroup(inviteLinkUrl.getGroupMasterKey(),
 882                 groupJoinInfo.getRevision() + 1,
 883                 groupChange.toByteArray());
 884
 885         if (group.getGroup() == null) {
 886             // Only requested member, can't send update to group members
 887             return new Pair<>(group.getGroupId(), List.of());
 888         }
 889
 890         final Pair<Long, List<SendMessageResult>> result = sendUpdateGroupMessage(group, group.getGroup(), groupChange);
 891
 892         return new Pair<>(group.getGroupId(), result.second());
 893     }
 894
 895     private Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 896             GroupInfoV2 group, DecryptedGroup newDecryptedGroup, GroupChange groupChange
 897     ) throws IOException {
 898         group.setGroup(newDecryptedGroup);
 899         final SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(group,
 900                 groupChange.toByteArray());
 901         account.getGroupStore().updateGroup(group);
 902         return sendMessage(messageBuilder, group.getMembersIncludingPendingWithout(account.getSelfAddress()));
 903     }
 904
 905     private void updateGroupV1(
 906             final GroupInfoV1 g,
 907             final String name,
 908             final Collection<SignalServiceAddress> members,
 909             final String avatarFile
 910     ) throws IOException {
 911         if (name != null) {
 912             g.name = name;
 913         }
 914
 915         if (members != null) {
 916             final Set<String> newE164Members = new HashSet<>();
 917             for (SignalServiceAddress member : members) {
 918                 if (g.isMember(member) || !member.getNumber().isPresent()) {
 919                     continue;
 920                 }
 921                 newE164Members.add(member.getNumber().get());
 922             }
 923
 924             final List<ContactTokenDetails> contacts = accountManager.getContacts(newE164Members);
 925             if (contacts.size() != newE164Members.size()) {
 926                 // Some of the new members are not registered on Signal
 927                 for (ContactTokenDetails contact : contacts) {
 928                     newE164Members.remove(contact.getNumber());
 929                 }
 930                 throw new IOException("Failed to add members "
 931                         + Util.join(", ", newE164Members)
 932                         + " to group: Not registered on Signal");
 933             }
 934
 935             g.addMembers(members);
 936         }
 937
 938         if (avatarFile != null) {
 939             IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
 940             File aFile = getGroupAvatarFile(g.getGroupId());
 941             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 942         }
 943     }
 944
 945     Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(
 946             GroupIdV1 groupId, SignalServiceAddress recipient
 947     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 948         GroupInfoV1 g;
 949         GroupInfo group = getGroupForSending(groupId);
 950         if (!(group instanceof GroupInfoV1)) {
 951             throw new RuntimeException("Received an invalid group request for a v2 group!");
 952         }
 953         g = (GroupInfoV1) group;
 954
 955         if (!g.isMember(recipient)) {
 956             throw new NotAGroupMemberException(groupId, g.name);
 957         }
 958
 959         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 960
 961         // Send group message only to the recipient who requested it
 962         return sendMessage(messageBuilder, Collections.singleton(recipient));
 963     }
 964
 965     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 966         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 967                 .withId(g.getGroupId().serialize())
 968                 .withName(g.name)
 969                 .withMembers(new ArrayList<>(g.getMembers()));
 970
 971         File aFile = getGroupAvatarFile(g.getGroupId());
 972         if (aFile.exists()) {
 973             try {
 974                 group.withAvatar(Utils.createAttachment(aFile));
 975             } catch (IOException e) {
 976                 throw new AttachmentInvalidException(aFile.toString(), e);
 977             }
 978         }
 979
 980         return SignalServiceDataMessage.newBuilder()
 981                 .asGroupMessage(group.build())
 982                 .withExpiration(g.getMessageExpirationTime());
 983     }
 984
 985     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV2 g, byte[] signedGroupChange) {
 986         SignalServiceGroupV2.Builder group = SignalServiceGroupV2.newBuilder(g.getMasterKey())
 987                 .withRevision(g.getGroup().getRevision())
 988                 .withSignedGroupChange(signedGroupChange);
 989         return SignalServiceDataMessage.newBuilder()
 990                 .asGroupMessage(group.build())
 991                 .withExpiration(g.getMessageExpirationTime());
 992     }
 993
 994     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(
 995             GroupIdV1 groupId, SignalServiceAddress recipient
 996     ) throws IOException {
 997         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 998                 .withId(groupId.serialize());
 999
1000         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1001                 .asGroupMessage(group.build());
1002
1003         // Send group info request message to the recipient who sent us a message with this groupId
1004         return sendMessage(messageBuilder, Collections.singleton(recipient));
1005     }
1006
1007     void sendReceipt(
1008             SignalServiceAddress remoteAddress, long messageId
1009     ) throws IOException, UntrustedIdentityException {
1010         SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
1011                 Collections.singletonList(messageId),
1012                 System.currentTimeMillis());
1013
1014         createMessageSender().sendReceipt(remoteAddress,
1015                 unidentifiedAccessHelper.getAccessFor(remoteAddress),
1016                 receiptMessage);
1017     }
1018
1019     public Pair<Long, List<SendMessageResult>> sendMessage(
1020             String messageText, List<String> attachments, List<String> recipients
1021     ) throws IOException, AttachmentInvalidException, InvalidNumberException {
1022         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1023                 .withBody(messageText);
1024         if (attachments != null) {
1025             List<SignalServiceAttachment> attachmentStreams = Utils.getSignalServiceAttachments(attachments);
1026
1027             // Upload attachments here, so we only upload once even for multiple recipients
1028             SignalServiceMessageSender messageSender = createMessageSender();
1029             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
1030             for (SignalServiceAttachment attachment : attachmentStreams) {
1031                 if (attachment.isStream()) {
1032                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
1033                 } else if (attachment.isPointer()) {
1034                     attachmentPointers.add(attachment.asPointer());
1035                 }
1036             }
1037
1038             messageBuilder.withAttachments(attachmentPointers);
1039         }
1040         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1041     }
1042
1043     public Pair<Long, List<SendMessageResult>> sendMessageReaction(
1044             String emoji, boolean remove, String targetAuthor, long targetSentTimestamp, List<String> recipients
1045     ) throws IOException, InvalidNumberException {
1046         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji,
1047                 remove,
1048                 canonicalizeAndResolveSignalServiceAddress(targetAuthor),
1049                 targetSentTimestamp);
1050         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1051                 .withReaction(reaction);
1052         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
1053     }
1054
1055     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
1056         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().asEndSessionMessage();
1057
1058         final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
1059         try {
1060             return sendMessage(messageBuilder, signalServiceAddresses);
1061         } catch (Exception e) {
1062             for (SignalServiceAddress address : signalServiceAddresses) {
1063                 handleEndSession(address);
1064             }
1065             account.save();
1066             throw e;
1067         }
1068     }
1069
1070     public String getContactName(String number) throws InvalidNumberException {
1071         ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));
1072         if (contact == null) {
1073             return "";
1074         } else {
1075             return contact.name;
1076         }
1077     }
1078
1079     public void setContactName(String number, String name) throws InvalidNumberException {
1080         final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
1081         ContactInfo contact = account.getContactStore().getContact(address);
1082         if (contact == null) {
1083             contact = new ContactInfo(address);
1084         }
1085         contact.name = name;
1086         account.getContactStore().updateContact(contact);
1087         account.save();
1088     }
1089
1090     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
1091         setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
1092     }
1093
1094     private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
1095         ContactInfo contact = account.getContactStore().getContact(address);
1096         if (contact == null) {
1097             contact = new ContactInfo(address);
1098         }
1099         contact.blocked = blocked;
1100         account.getContactStore().updateContact(contact);
1101         account.save();
1102     }
1103
1104     public void setGroupBlocked(final GroupId groupId, final boolean blocked) throws GroupNotFoundException {
1105         GroupInfo group = getGroup(groupId);
1106         if (group == null) {
1107             throw new GroupNotFoundException(groupId);
1108         }
1109
1110         group.setBlocked(blocked);
1111         account.getGroupStore().updateGroup(group);
1112         account.save();
1113     }
1114
1115     public Pair<GroupId, List<SendMessageResult>> updateGroup(
1116             GroupId groupId, String name, List<String> members, String avatar
1117     ) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
1118         return sendUpdateGroupMessage(groupId,
1119                 name,
1120                 members == null ? null : getSignalServiceAddresses(members),
1121                 avatar);
1122     }
1123
1124     /**
1125      * Change the expiration timer for a contact
1126      */
1127     public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) throws IOException {
1128         ContactInfo contact = account.getContactStore().getContact(address);
1129         contact.messageExpirationTime = messageExpirationTimer;
1130         account.getContactStore().updateContact(contact);
1131         sendExpirationTimerUpdate(address);
1132         account.save();
1133     }
1134
1135     private void sendExpirationTimerUpdate(SignalServiceAddress address) throws IOException {
1136         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
1137                 .asExpirationUpdate();
1138         sendMessage(messageBuilder, Collections.singleton(address));
1139     }
1140
1141     /**
1142      * Change the expiration timer for a contact
1143      */
1144     public void setExpirationTimer(
1145             String number, int messageExpirationTimer
1146     ) throws IOException, InvalidNumberException {
1147         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
1148         setExpirationTimer(address, messageExpirationTimer);
1149     }
1150
1151     /**
1152      * Change the expiration timer for a group
1153      */
1154     public void setExpirationTimer(GroupId groupId, int messageExpirationTimer) {
1155         GroupInfo g = account.getGroupStore().getGroup(groupId);
1156         if (g instanceof GroupInfoV1) {
1157             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
1158             groupInfoV1.messageExpirationTime = messageExpirationTimer;
1159             account.getGroupStore().updateGroup(groupInfoV1);
1160         } else {
1161             throw new RuntimeException("TODO Not implemented!");
1162         }
1163     }
1164
1165     /**
1166      * Upload the sticker pack from path.
1167      *
1168      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
1169      * @return if successful, returns the URL to install the sticker pack in the signal app
1170      */
1171     public String uploadStickerPack(File path) throws IOException, StickerPackInvalidException {
1172         SignalServiceStickerManifestUpload manifest = getSignalServiceStickerManifestUpload(path);
1173
1174         SignalServiceMessageSender messageSender = createMessageSender();
1175
1176         byte[] packKey = KeyUtils.createStickerUploadKey();
1177         String packId = messageSender.uploadStickerManifest(manifest, packKey);
1178
1179         Sticker sticker = new Sticker(Hex.fromStringCondensed(packId), packKey);
1180         account.getStickerStore().updateSticker(sticker);
1181         account.save();
1182
1183         try {
1184             return new URI("https",
1185                     "signal.art",
1186                     "/addstickers/",
1187                     "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(
1188                             Hex.toStringCondensed(packKey),
1189                             StandardCharsets.UTF_8)).toString();
1190         } catch (URISyntaxException e) {
1191             throw new AssertionError(e);
1192         }
1193     }
1194
1195     private SignalServiceStickerManifestUpload getSignalServiceStickerManifestUpload(
1196             final File file
1197     ) throws IOException, StickerPackInvalidException {
1198         ZipFile zip = null;
1199         String rootPath = null;
1200
1201         if (file.getName().endsWith(".zip")) {
1202             zip = new ZipFile(file);
1203         } else if (file.getName().equals("manifest.json")) {
1204             rootPath = file.getParent();
1205         } else {
1206             throw new StickerPackInvalidException("Could not find manifest.json");
1207         }
1208
1209         JsonStickerPack pack = parseStickerPack(rootPath, zip);
1210
1211         if (pack.stickers == null) {
1212             throw new StickerPackInvalidException("Must set a 'stickers' field.");
1213         }
1214
1215         if (pack.stickers.isEmpty()) {
1216             throw new StickerPackInvalidException("Must include stickers.");
1217         }
1218
1219         List<StickerInfo> stickers = new ArrayList<>(pack.stickers.size());
1220         for (JsonStickerPack.JsonSticker sticker : pack.stickers) {
1221             if (sticker.file == null) {
1222                 throw new StickerPackInvalidException("Must set a 'file' field on each sticker.");
1223             }
1224
1225             Pair<InputStream, Long> data;
1226             try {
1227                 data = getInputStreamAndLength(rootPath, zip, sticker.file);
1228             } catch (IOException ignored) {
1229                 throw new StickerPackInvalidException("Could not find find " + sticker.file);
1230             }
1231
1232             String contentType = Utils.getFileMimeType(new File(sticker.file), null);
1233             StickerInfo stickerInfo = new StickerInfo(data.first(),
1234                     data.second(),
1235                     Optional.fromNullable(sticker.emoji).or(""),
1236                     contentType);
1237             stickers.add(stickerInfo);
1238         }
1239
1240         StickerInfo cover = null;
1241         if (pack.cover != null) {
1242             if (pack.cover.file == null) {
1243                 throw new StickerPackInvalidException("Must set a 'file' field on the cover.");
1244             }
1245
1246             Pair<InputStream, Long> data;
1247             try {
1248                 data = getInputStreamAndLength(rootPath, zip, pack.cover.file);
1249             } catch (IOException ignored) {
1250                 throw new StickerPackInvalidException("Could not find find " + pack.cover.file);
1251             }
1252
1253             String contentType = Utils.getFileMimeType(new File(pack.cover.file), null);
1254             cover = new StickerInfo(data.first(),
1255                     data.second(),
1256                     Optional.fromNullable(pack.cover.emoji).or(""),
1257                     contentType);
1258         }
1259
1260         return new SignalServiceStickerManifestUpload(pack.title, pack.author, cover, stickers);
1261     }
1262
1263     private static JsonStickerPack parseStickerPack(String rootPath, ZipFile zip) throws IOException {
1264         InputStream inputStream;
1265         if (zip != null) {
1266             inputStream = zip.getInputStream(zip.getEntry("manifest.json"));
1267         } else {
1268             inputStream = new FileInputStream((new File(rootPath, "manifest.json")));
1269         }
1270         return new ObjectMapper().readValue(inputStream, JsonStickerPack.class);
1271     }
1272
1273     private static Pair<InputStream, Long> getInputStreamAndLength(
1274             final String rootPath, final ZipFile zip, final String subfile
1275     ) throws IOException {
1276         if (zip != null) {
1277             final ZipEntry entry = zip.getEntry(subfile);
1278             return new Pair<>(zip.getInputStream(entry), entry.getSize());
1279         } else {
1280             final File file = new File(rootPath, subfile);
1281             return new Pair<>(new FileInputStream(file), file.length());
1282         }
1283     }
1284
1285     void requestSyncGroups() throws IOException {
1286         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1287                 .setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS)
1288                 .build();
1289         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1290         try {
1291             sendSyncMessage(message);
1292         } catch (UntrustedIdentityException e) {
1293             e.printStackTrace();
1294         }
1295     }
1296
1297     void requestSyncContacts() throws IOException {
1298         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1299                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS)
1300                 .build();
1301         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1302         try {
1303             sendSyncMessage(message);
1304         } catch (UntrustedIdentityException e) {
1305             e.printStackTrace();
1306         }
1307     }
1308
1309     void requestSyncBlocked() throws IOException {
1310         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1311                 .setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED)
1312                 .build();
1313         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1314         try {
1315             sendSyncMessage(message);
1316         } catch (UntrustedIdentityException e) {
1317             e.printStackTrace();
1318         }
1319     }
1320
1321     void requestSyncConfiguration() throws IOException {
1322         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder()
1323                 .setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION)
1324                 .build();
1325         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1326         try {
1327             sendSyncMessage(message);
1328         } catch (UntrustedIdentityException e) {
1329             e.printStackTrace();
1330         }
1331     }
1332
1333     private byte[] getSenderCertificate() {
1334         // TODO support UUID capable sender certificates
1335         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1336         byte[] certificate;
1337         try {
1338             certificate = accountManager.getSenderCertificate();
1339         } catch (IOException e) {
1340             logger.warn("Failed to get sender certificate, ignoring: {}", e.getMessage());
1341             return null;
1342         }
1343         // TODO cache for a day
1344         return certificate;
1345     }
1346
1347     private void sendSyncMessage(SignalServiceSyncMessage message) throws IOException, UntrustedIdentityException {
1348         SignalServiceMessageSender messageSender = createMessageSender();
1349         try {
1350             messageSender.sendMessage(message, unidentifiedAccessHelper.getAccessForSync());
1351         } catch (UntrustedIdentityException e) {
1352             account.getSignalProtocolStore()
1353                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1354                             e.getIdentityKey(),
1355                             TrustLevel.UNTRUSTED);
1356             throw e;
1357         }
1358     }
1359
1360     private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1361         final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
1362         final Set<SignalServiceAddress> missingUuids = new HashSet<>();
1363
1364         for (String number : numbers) {
1365             final SignalServiceAddress resolvedAddress = canonicalizeAndResolveSignalServiceAddress(number);
1366             if (resolvedAddress.getUuid().isPresent()) {
1367                 signalServiceAddresses.add(resolvedAddress);
1368             } else {
1369                 missingUuids.add(resolvedAddress);
1370             }
1371         }
1372
1373         Map<String, UUID> registeredUsers;
1374         try {
1375             registeredUsers = accountManager.getRegisteredUsers(getIasKeyStore(),
1376                     missingUuids.stream().map(a -> a.getNumber().get()).collect(Collectors.toSet()),
1377                     CDS_MRENCLAVE);
1378         } catch (IOException | Quote.InvalidQuoteFormatException | UnauthenticatedQuoteException | SignatureException | UnauthenticatedResponseException e) {
1379             logger.warn("Failed to resolve uuids from server, ignoring: {}", e.getMessage());
1380             registeredUsers = new HashMap<>();
1381         }
1382
1383         for (SignalServiceAddress address : missingUuids) {
1384             final String number = address.getNumber().get();
1385             if (registeredUsers.containsKey(number)) {
1386                 final SignalServiceAddress newAddress = resolveSignalServiceAddress(new SignalServiceAddress(
1387                         registeredUsers.get(number),
1388                         number));
1389                 signalServiceAddresses.add(newAddress);
1390             } else {
1391                 signalServiceAddresses.add(address);
1392             }
1393         }
1394
1395         return signalServiceAddresses;
1396     }
1397
1398     private Pair<Long, List<SendMessageResult>> sendMessage(
1399             SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients
1400     ) throws IOException {
1401         recipients = recipients.stream().map(this::resolveSignalServiceAddress).collect(Collectors.toSet());
1402         final long timestamp = System.currentTimeMillis();
1403         messageBuilder.withTimestamp(timestamp);
1404         getOrCreateMessagePipe();
1405         getOrCreateUnidentifiedMessagePipe();
1406         SignalServiceDataMessage message = null;
1407         try {
1408             message = messageBuilder.build();
1409             if (message.getGroupContext().isPresent()) {
1410                 try {
1411                     SignalServiceMessageSender messageSender = createMessageSender();
1412                     final boolean isRecipientUpdate = false;
1413                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients),
1414                             unidentifiedAccessHelper.getAccessFor(recipients),
1415                             isRecipientUpdate,
1416                             message);
1417                     for (SendMessageResult r : result) {
1418                         if (r.getIdentityFailure() != null) {
1419                             account.getSignalProtocolStore()
1420                                     .saveIdentity(r.getAddress(),
1421                                             r.getIdentityFailure().getIdentityKey(),
1422                                             TrustLevel.UNTRUSTED);
1423                         }
1424                     }
1425                     return new Pair<>(timestamp, result);
1426                 } catch (UntrustedIdentityException e) {
1427                     account.getSignalProtocolStore()
1428                             .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1429                                     e.getIdentityKey(),
1430                                     TrustLevel.UNTRUSTED);
1431                     return new Pair<>(timestamp, Collections.emptyList());
1432                 }
1433             } else {
1434                 // Send to all individually, so sync messages are sent correctly
1435                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1436                 for (SignalServiceAddress address : recipients) {
1437                     ContactInfo contact = account.getContactStore().getContact(address);
1438                     if (contact != null) {
1439                         messageBuilder.withExpiration(contact.messageExpirationTime);
1440                         messageBuilder.withProfileKey(account.getProfileKey().serialize());
1441                     } else {
1442                         messageBuilder.withExpiration(0);
1443                         messageBuilder.withProfileKey(null);
1444                     }
1445                     message = messageBuilder.build();
1446                     if (address.matches(account.getSelfAddress())) {
1447                         results.add(sendSelfMessage(message));
1448                     } else {
1449                         results.add(sendMessage(address, message));
1450                     }
1451                 }
1452                 return new Pair<>(timestamp, results);
1453             }
1454         } finally {
1455             if (message != null && message.isEndSession()) {
1456                 for (SignalServiceAddress recipient : recipients) {
1457                     handleEndSession(recipient);
1458                 }
1459             }
1460             account.save();
1461         }
1462     }
1463
1464     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1465         SignalServiceMessageSender messageSender = createMessageSender();
1466
1467         SignalServiceAddress recipient = account.getSelfAddress();
1468
1469         final Optional<UnidentifiedAccessPair> unidentifiedAccess = unidentifiedAccessHelper.getAccessFor(recipient);
1470         SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1471                 message.getTimestamp(),
1472                 message,
1473                 message.getExpiresInSeconds(),
1474                 Collections.singletonMap(recipient, unidentifiedAccess.isPresent()),
1475                 false);
1476         SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1477
1478         try {
1479             long startTime = System.currentTimeMillis();
1480             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1481             return SendMessageResult.success(recipient,
1482                     unidentifiedAccess.isPresent(),
1483                     false,
1484                     System.currentTimeMillis() - startTime);
1485         } catch (UntrustedIdentityException e) {
1486             account.getSignalProtocolStore()
1487                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1488                             e.getIdentityKey(),
1489                             TrustLevel.UNTRUSTED);
1490             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1491         }
1492     }
1493
1494     private SendMessageResult sendMessage(
1495             SignalServiceAddress address, SignalServiceDataMessage message
1496     ) throws IOException {
1497         SignalServiceMessageSender messageSender = createMessageSender();
1498
1499         try {
1500             return messageSender.sendMessage(address, unidentifiedAccessHelper.getAccessFor(address), message);
1501         } catch (UntrustedIdentityException e) {
1502             account.getSignalProtocolStore()
1503                     .saveIdentity(resolveSignalServiceAddress(e.getIdentifier()),
1504                             e.getIdentityKey(),
1505                             TrustLevel.UNTRUSTED);
1506             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1507         }
1508     }
1509
1510     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1511         SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(),
1512                 account.getSignalProtocolStore(),
1513                 Utils.getCertificateValidator());
1514         try {
1515             return cipher.decrypt(envelope);
1516         } catch (ProtocolUntrustedIdentityException e) {
1517             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1518                 org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e
1519                         .getCause();
1520                 account.getSignalProtocolStore()
1521                         .saveIdentity(resolveSignalServiceAddress(identityException.getName()),
1522                                 identityException.getUntrustedIdentity(),
1523                                 TrustLevel.UNTRUSTED);
1524                 throw identityException;
1525             }
1526             throw new AssertionError(e);
1527         }
1528     }
1529
1530     private void handleEndSession(SignalServiceAddress source) {
1531         account.getSignalProtocolStore().deleteAllSessions(source);
1532     }
1533
1534     private static int currentTimeDays() {
1535         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
1536     }
1537
1538     private GroupsV2AuthorizationString getGroupAuthForToday(
1539             final GroupSecretParams groupSecretParams
1540     ) throws IOException {
1541         final int today = currentTimeDays();
1542         // Returns credentials for the next 7 days
1543         final HashMap<Integer, AuthCredentialResponse> credentials = groupsV2Api.getCredentials(today);
1544         // TODO cache credentials until they expire
1545         AuthCredentialResponse authCredentialResponse = credentials.get(today);
1546         try {
1547             return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(),
1548                     today,
1549                     groupSecretParams,
1550                     authCredentialResponse);
1551         } catch (VerificationFailedException e) {
1552             throw new IOException(e);
1553         }
1554     }
1555
1556     private List<HandleAction> handleSignalServiceDataMessage(
1557             SignalServiceDataMessage message,
1558             boolean isSync,
1559             SignalServiceAddress source,
1560             SignalServiceAddress destination,
1561             boolean ignoreAttachments
1562     ) {
1563         List<HandleAction> actions = new ArrayList<>();
1564         if (message.getGroupContext().isPresent()) {
1565             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1566                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1567                 GroupIdV1 groupId = GroupId.v1(groupInfo.getGroupId());
1568                 GroupInfo group = account.getGroupStore().getGroup(groupId);
1569                 if (group == null || group instanceof GroupInfoV1) {
1570                     GroupInfoV1 groupV1 = (GroupInfoV1) group;
1571                     switch (groupInfo.getType()) {
1572                         case UPDATE: {
1573                             if (groupV1 == null) {
1574                                 groupV1 = new GroupInfoV1(groupId);
1575                             }
1576
1577                             if (groupInfo.getAvatar().isPresent()) {
1578                                 SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1579                                 if (avatar.isPointer()) {
1580                                     try {
1581                                         retrieveGroupAvatarAttachment(avatar.asPointer(), groupV1.getGroupId());
1582                                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1583                                         logger.warn("Failed to retrieve avatar for group {}, ignoring: {}",
1584                                                 groupId.toBase64(),
1585                                                 e.getMessage());
1586                                     }
1587                                 }
1588                             }
1589
1590                             if (groupInfo.getName().isPresent()) {
1591                                 groupV1.name = groupInfo.getName().get();
1592                             }
1593
1594                             if (groupInfo.getMembers().isPresent()) {
1595                                 groupV1.addMembers(groupInfo.getMembers()
1596                                         .get()
1597                                         .stream()
1598                                         .map(this::resolveSignalServiceAddress)
1599                                         .collect(Collectors.toSet()));
1600                             }
1601
1602                             account.getGroupStore().updateGroup(groupV1);
1603                             break;
1604                         }
1605                         case DELIVER:
1606                             if (groupV1 == null && !isSync) {
1607                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
1608                             }
1609                             break;
1610                         case QUIT: {
1611                             if (groupV1 != null) {
1612                                 groupV1.removeMember(source);
1613                                 account.getGroupStore().updateGroup(groupV1);
1614                             }
1615                             break;
1616                         }
1617                         case REQUEST_INFO:
1618                             if (groupV1 != null && !isSync) {
1619                                 actions.add(new SendGroupUpdateAction(source, groupV1.getGroupId()));
1620                             }
1621                             break;
1622                     }
1623                 } else {
1624                     // Received a group v1 message for a v2 group
1625                 }
1626             }
1627             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1628                 final SignalServiceGroupV2 groupContext = message.getGroupContext().get().getGroupV2().get();
1629                 final GroupMasterKey groupMasterKey = groupContext.getMasterKey();
1630
1631                 getOrMigrateGroup(groupMasterKey,
1632                         groupContext.getRevision(),
1633                         groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
1634             }
1635         }
1636
1637         final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;
1638         if (conversationPartnerAddress != null && message.isEndSession()) {
1639             handleEndSession(conversationPartnerAddress);
1640         }
1641         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1642             if (message.getGroupContext().isPresent()) {
1643                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1644                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1645                     GroupInfoV1 group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
1646                     if (group != null) {
1647                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1648                             group.messageExpirationTime = message.getExpiresInSeconds();
1649                             account.getGroupStore().updateGroup(group);
1650                         }
1651                     }
1652                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1653                     // disappearing message timer already stored in the DecryptedGroup
1654                 }
1655             } else if (conversationPartnerAddress != null) {
1656                 ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
1657                 if (contact == null) {
1658                     contact = new ContactInfo(conversationPartnerAddress);
1659                 }
1660                 if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
1661                     contact.messageExpirationTime = message.getExpiresInSeconds();
1662                     account.getContactStore().updateContact(contact);
1663                 }
1664             }
1665         }
1666         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1667             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1668                 if (attachment.isPointer()) {
1669                     try {
1670                         retrieveAttachment(attachment.asPointer());
1671                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1672                         logger.warn("Failed to retrieve attachment ({}), ignoring: {}",
1673                                 attachment.asPointer().getRemoteId(),
1674                                 e.getMessage());
1675                     }
1676                 }
1677             }
1678         }
1679         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1680             final ProfileKey profileKey;
1681             try {
1682                 profileKey = new ProfileKey(message.getProfileKey().get());
1683             } catch (InvalidInputException e) {
1684                 throw new AssertionError(e);
1685             }
1686             if (source.matches(account.getSelfAddress())) {
1687                 this.account.setProfileKey(profileKey);
1688             }
1689             this.account.getProfileStore().storeProfileKey(source, profileKey);
1690         }
1691         if (message.getPreviews().isPresent()) {
1692             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1693             for (SignalServiceDataMessage.Preview preview : previews) {
1694                 if (preview.getImage().isPresent() && preview.getImage().get().isPointer()) {
1695                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
1696                     try {
1697                         retrieveAttachment(attachment);
1698                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1699                         logger.warn("Failed to retrieve preview image ({}), ignoring: {}",
1700                                 attachment.getRemoteId(),
1701                                 e.getMessage());
1702                     }
1703                 }
1704             }
1705         }
1706         if (message.getQuote().isPresent()) {
1707             final SignalServiceDataMessage.Quote quote = message.getQuote().get();
1708
1709             for (SignalServiceDataMessage.Quote.QuotedAttachment quotedAttachment : quote.getAttachments()) {
1710                 final SignalServiceAttachment attachment = quotedAttachment.getThumbnail();
1711                 if (attachment != null && attachment.isPointer()) {
1712                     try {
1713                         retrieveAttachment(attachment.asPointer());
1714                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1715                         logger.warn("Failed to retrieve quote attachment thumbnail ({}), ignoring: {}",
1716                                 attachment.asPointer().getRemoteId(),
1717                                 e.getMessage());
1718                     }
1719                 }
1720             }
1721         }
1722         if (message.getSticker().isPresent()) {
1723             final SignalServiceDataMessage.Sticker messageSticker = message.getSticker().get();
1724             Sticker sticker = account.getStickerStore().getSticker(messageSticker.getPackId());
1725             if (sticker == null) {
1726                 sticker = new Sticker(messageSticker.getPackId(), messageSticker.getPackKey());
1727                 account.getStickerStore().updateSticker(sticker);
1728             }
1729         }
1730         return actions;
1731     }
1732
1733     private GroupInfoV2 getOrMigrateGroup(
1734             final GroupMasterKey groupMasterKey, final int revision, final byte[] signedGroupChange
1735     ) {
1736         final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1737
1738         GroupIdV2 groupId = GroupUtils.getGroupIdV2(groupSecretParams);
1739         GroupInfo groupInfo = account.getGroupStore().getGroup(groupId);
1740         final GroupInfoV2 groupInfoV2;
1741         if (groupInfo instanceof GroupInfoV1) {
1742             // Received a v2 group message for a v1 group, we need to locally migrate the group
1743             account.getGroupStore().deleteGroup(groupInfo.getGroupId());
1744             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1745             logger.info("Locally migrated group {} to group v2, id: {}",
1746                     groupInfo.getGroupId().toBase64(),
1747                     groupInfoV2.getGroupId().toBase64());
1748         } else if (groupInfo instanceof GroupInfoV2) {
1749             groupInfoV2 = (GroupInfoV2) groupInfo;
1750         } else {
1751             groupInfoV2 = new GroupInfoV2(groupId, groupMasterKey);
1752         }
1753
1754         if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < revision) {
1755             DecryptedGroup group = null;
1756             if (signedGroupChange != null
1757                     && groupInfoV2.getGroup() != null
1758                     && groupInfoV2.getGroup().getRevision() + 1 == revision) {
1759                 group = groupHelper.getUpdatedDecryptedGroup(groupInfoV2.getGroup(), signedGroupChange, groupMasterKey);
1760             }
1761             if (group == null) {
1762                 group = groupHelper.getDecryptedGroup(groupSecretParams);
1763             }
1764             if (group != null) {
1765                 storeProfileKeysFromMembers(group);
1766                 final String avatar = group.getAvatar();
1767                 if (avatar != null && !avatar.isEmpty()) {
1768                     try {
1769                         retrieveGroupAvatar(groupId, groupSecretParams, avatar);
1770                     } catch (IOException e) {
1771                         logger.warn("Failed to download group avatar, ignoring: {}", e.getMessage());
1772                     }
1773                 }
1774             }
1775             groupInfoV2.setGroup(group);
1776             account.getGroupStore().updateGroup(groupInfoV2);
1777         }
1778
1779         return groupInfoV2;
1780     }
1781
1782     private void storeProfileKeysFromMembers(final DecryptedGroup group) {
1783         for (DecryptedMember member : group.getMembersList()) {
1784             final SignalServiceAddress address = resolveSignalServiceAddress(new SignalServiceAddress(UuidUtil.parseOrThrow(
1785                     member.getUuid().toByteArray()), null));
1786             try {
1787                 account.getProfileStore()
1788                         .storeProfileKey(address, new ProfileKey(member.getProfileKey().toByteArray()));
1789             } catch (InvalidInputException ignored) {
1790             }
1791         }
1792     }
1793
1794     private void retryFailedReceivedMessages(
1795             ReceiveMessageHandler handler, boolean ignoreAttachments
1796     ) {
1797         final File cachePath = getMessageCachePath();
1798         if (!cachePath.exists()) {
1799             return;
1800         }
1801         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
1802             if (!dir.isDirectory()) {
1803                 retryFailedReceivedMessage(handler, ignoreAttachments, dir);
1804                 continue;
1805             }
1806
1807             for (final File fileEntry : Objects.requireNonNull(dir.listFiles())) {
1808                 if (!fileEntry.isFile()) {
1809                     continue;
1810                 }
1811                 retryFailedReceivedMessage(handler, ignoreAttachments, fileEntry);
1812             }
1813             // Try to delete directory if empty
1814             dir.delete();
1815         }
1816     }
1817
1818     private void retryFailedReceivedMessage(
1819             final ReceiveMessageHandler handler, final boolean ignoreAttachments, final File fileEntry
1820     ) {
1821         SignalServiceEnvelope envelope;
1822         try {
1823             envelope = Utils.loadEnvelope(fileEntry);
1824             if (envelope == null) {
1825                 return;
1826             }
1827         } catch (IOException e) {
1828             e.printStackTrace();
1829             return;
1830         }
1831         SignalServiceContent content = null;
1832         if (!envelope.isReceipt()) {
1833             try {
1834                 content = decryptMessage(envelope);
1835             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1836                 return;
1837             } catch (Exception er) {
1838                 // All other errors are not recoverable, so delete the cached message
1839                 try {
1840                     Files.delete(fileEntry.toPath());
1841                 } catch (IOException e) {
1842                     logger.warn("Failed to delete cached message file “{}”, ignoring: {}", fileEntry, e.getMessage());
1843                 }
1844                 return;
1845             }
1846             List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1847             for (HandleAction action : actions) {
1848                 try {
1849                     action.execute(this);
1850                 } catch (Throwable e) {
1851                     e.printStackTrace();
1852                 }
1853             }
1854         }
1855         account.save();
1856         handler.handleMessage(envelope, content, null);
1857         try {
1858             Files.delete(fileEntry.toPath());
1859         } catch (IOException e) {
1860             logger.warn("Failed to delete cached message file “{}”, ignoring: {}", fileEntry, e.getMessage());
1861         }
1862     }
1863
1864     public void receiveMessages(
1865             long timeout,
1866             TimeUnit unit,
1867             boolean returnOnTimeout,
1868             boolean ignoreAttachments,
1869             ReceiveMessageHandler handler
1870     ) throws IOException {
1871         retryFailedReceivedMessages(handler, ignoreAttachments);
1872
1873         Set<HandleAction> queuedActions = null;
1874
1875         getOrCreateMessagePipe();
1876
1877         boolean hasCaughtUpWithOldMessages = false;
1878
1879         while (true) {
1880             SignalServiceEnvelope envelope;
1881             SignalServiceContent content = null;
1882             Exception exception = null;
1883             final long now = new Date().getTime();
1884             try {
1885                 Optional<SignalServiceEnvelope> result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1886                     // store message on disk, before acknowledging receipt to the server
1887                     try {
1888                         String source = envelope1.getSourceE164().isPresent() ? envelope1.getSourceE164().get() : "";
1889                         File cacheFile = getMessageCacheFile(source, now, envelope1.getTimestamp());
1890                         Utils.storeEnvelope(envelope1, cacheFile);
1891                     } catch (IOException e) {
1892                         logger.warn("Failed to store encrypted message in disk cache, ignoring: {}", e.getMessage());
1893                     }
1894                 });
1895                 if (result.isPresent()) {
1896                     envelope = result.get();
1897                 } else {
1898                     // Received indicator that server queue is empty
1899                     hasCaughtUpWithOldMessages = true;
1900
1901                     if (queuedActions != null) {
1902                         for (HandleAction action : queuedActions) {
1903                             try {
1904                                 action.execute(this);
1905                             } catch (Throwable e) {
1906                                 e.printStackTrace();
1907                             }
1908                         }
1909                         account.save();
1910                         queuedActions.clear();
1911                         queuedActions = null;
1912                     }
1913
1914                     // Continue to wait another timeout for new messages
1915                     continue;
1916                 }
1917             } catch (TimeoutException e) {
1918                 if (returnOnTimeout) return;
1919                 continue;
1920             } catch (InvalidVersionException e) {
1921                 logger.warn("Error while receiving messages, ignoring: {}", e.getMessage());
1922                 continue;
1923             }
1924
1925             if (envelope.hasSource()) {
1926                 // Store uuid if we don't have it already
1927                 SignalServiceAddress source = envelope.getSourceAddress();
1928                 resolveSignalServiceAddress(source);
1929             }
1930             if (!envelope.isReceipt()) {
1931                 try {
1932                     content = decryptMessage(envelope);
1933                 } catch (Exception e) {
1934                     exception = e;
1935                 }
1936                 List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1937                 if (hasCaughtUpWithOldMessages) {
1938                     for (HandleAction action : actions) {
1939                         try {
1940                             action.execute(this);
1941                         } catch (Throwable e) {
1942                             e.printStackTrace();
1943                         }
1944                     }
1945                 } else {
1946                     if (queuedActions == null) {
1947                         queuedActions = new HashSet<>();
1948                     }
1949                     queuedActions.addAll(actions);
1950                 }
1951             }
1952             account.save();
1953             if (!isMessageBlocked(envelope, content)) {
1954                 handler.handleMessage(envelope, content, exception);
1955             }
1956             if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
1957                 File cacheFile = null;
1958                 try {
1959                     String source = envelope.getSourceE164().isPresent() ? envelope.getSourceE164().get() : "";
1960                     cacheFile = getMessageCacheFile(source, now, envelope.getTimestamp());
1961                     Files.delete(cacheFile.toPath());
1962                     // Try to delete directory if empty
1963                     getMessageCachePath().delete();
1964                 } catch (IOException e) {
1965                     logger.warn("Failed to delete cached message file “{}”, ignoring: {}", cacheFile, e.getMessage());
1966                 }
1967             }
1968         }
1969     }
1970
1971     private boolean isMessageBlocked(
1972             SignalServiceEnvelope envelope, SignalServiceContent content
1973     ) {
1974         SignalServiceAddress source;
1975         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1976             source = envelope.getSourceAddress();
1977         } else if (content != null) {
1978             source = content.getSender();
1979         } else {
1980             return false;
1981         }
1982         ContactInfo sourceContact = account.getContactStore().getContact(source);
1983         if (sourceContact != null && sourceContact.blocked) {
1984             return true;
1985         }
1986
1987         if (content != null && content.getDataMessage().isPresent()) {
1988             SignalServiceDataMessage message = content.getDataMessage().get();
1989             if (message.getGroupContext().isPresent()) {
1990                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1991                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1992                     if (groupInfo.getType() != SignalServiceGroup.Type.DELIVER) {
1993                         return false;
1994                     }
1995                 }
1996                 GroupId groupId = GroupUtils.getGroupId(message.getGroupContext().get());
1997                 GroupInfo group = account.getGroupStore().getGroup(groupId);
1998                 if (group != null && group.isBlocked()) {
1999                     return true;
2000                 }
2001             }
2002         }
2003         return false;
2004     }
2005
2006     private List<HandleAction> handleMessage(
2007             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
2008     ) {
2009         List<HandleAction> actions = new ArrayList<>();
2010         if (content != null) {
2011             final SignalServiceAddress sender;
2012             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
2013                 sender = envelope.getSourceAddress();
2014             } else {
2015                 sender = content.getSender();
2016             }
2017             // Store uuid if we don't have it already
2018             resolveSignalServiceAddress(sender);
2019
2020             if (content.getDataMessage().isPresent()) {
2021                 SignalServiceDataMessage message = content.getDataMessage().get();
2022
2023                 if (content.isNeedsReceipt()) {
2024                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
2025                 }
2026
2027                 actions.addAll(handleSignalServiceDataMessage(message,
2028                         false,
2029                         sender,
2030                         account.getSelfAddress(),
2031                         ignoreAttachments));
2032             }
2033             if (content.getSyncMessage().isPresent()) {
2034                 account.setMultiDevice(true);
2035                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
2036                 if (syncMessage.getSent().isPresent()) {
2037                     SentTranscriptMessage message = syncMessage.getSent().get();
2038                     final SignalServiceAddress destination = message.getDestination().orNull();
2039                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
2040                             true,
2041                             sender,
2042                             destination,
2043                             ignoreAttachments));
2044                 }
2045                 if (syncMessage.getRequest().isPresent()) {
2046                     RequestMessage rm = syncMessage.getRequest().get();
2047                     if (rm.isContactsRequest()) {
2048                         actions.add(SendSyncContactsAction.create());
2049                     }
2050                     if (rm.isGroupsRequest()) {
2051                         actions.add(SendSyncGroupsAction.create());
2052                     }
2053                     if (rm.isBlockedListRequest()) {
2054                         actions.add(SendSyncBlockedListAction.create());
2055                     }
2056                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
2057                 }
2058                 if (syncMessage.getGroups().isPresent()) {
2059                     File tmpFile = null;
2060                     try {
2061                         tmpFile = IOUtils.createTempFile();
2062                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups()
2063                                 .get()
2064                                 .asPointer(), tmpFile)) {
2065                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
2066                             DeviceGroup g;
2067                             while ((g = s.read()) != null) {
2068                                 GroupInfoV1 syncGroup = account.getGroupStore()
2069                                         .getOrCreateGroupV1(GroupId.v1(g.getId()));
2070                                 if (syncGroup != null) {
2071                                     if (g.getName().isPresent()) {
2072                                         syncGroup.name = g.getName().get();
2073                                     }
2074                                     syncGroup.addMembers(g.getMembers()
2075                                             .stream()
2076                                             .map(this::resolveSignalServiceAddress)
2077                                             .collect(Collectors.toSet()));
2078                                     if (!g.isActive()) {
2079                                         syncGroup.removeMember(account.getSelfAddress());
2080                                     } else {
2081                                         // Add ourself to the member set as it's marked as active
2082                                         syncGroup.addMembers(Collections.singleton(account.getSelfAddress()));
2083                                     }
2084                                     syncGroup.blocked = g.isBlocked();
2085                                     if (g.getColor().isPresent()) {
2086                                         syncGroup.color = g.getColor().get();
2087                                     }
2088
2089                                     if (g.getAvatar().isPresent()) {
2090                                         retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.getGroupId());
2091                                     }
2092                                     syncGroup.inboxPosition = g.getInboxPosition().orNull();
2093                                     syncGroup.archived = g.isArchived();
2094                                     account.getGroupStore().updateGroup(syncGroup);
2095                                 }
2096                             }
2097                         }
2098                     } catch (Exception e) {
2099                         logger.warn("Failed to handle received sync groups “{}”, ignoring: {}",
2100                                 tmpFile,
2101                                 e.getMessage());
2102                         e.printStackTrace();
2103                     } finally {
2104                         if (tmpFile != null) {
2105                             try {
2106                                 Files.delete(tmpFile.toPath());
2107                             } catch (IOException e) {
2108                                 logger.warn("Failed to delete received groups temp file “{}”, ignoring: {}",
2109                                         tmpFile,
2110                                         e.getMessage());
2111                             }
2112                         }
2113                     }
2114                 }
2115                 if (syncMessage.getBlockedList().isPresent()) {
2116                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
2117                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
2118                         setContactBlocked(resolveSignalServiceAddress(address), true);
2119                     }
2120                     for (GroupId groupId : blockedListMessage.getGroupIds()
2121                             .stream()
2122                             .map(GroupId::unknownVersion)
2123                             .collect(Collectors.toSet())) {
2124                         try {
2125                             setGroupBlocked(groupId, true);
2126                         } catch (GroupNotFoundException e) {
2127                             logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
2128                                     groupId.toBase64());
2129                         }
2130                     }
2131                 }
2132                 if (syncMessage.getContacts().isPresent()) {
2133                     File tmpFile = null;
2134                     try {
2135                         tmpFile = IOUtils.createTempFile();
2136                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
2137                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream()
2138                                 .asPointer(), tmpFile)) {
2139                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
2140                             if (contactsMessage.isComplete()) {
2141                                 account.getContactStore().clear();
2142                             }
2143                             DeviceContact c;
2144                             while ((c = s.read()) != null) {
2145                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
2146                                     account.setProfileKey(c.getProfileKey().get());
2147                                 }
2148                                 final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
2149                                 ContactInfo contact = account.getContactStore().getContact(address);
2150                                 if (contact == null) {
2151                                     contact = new ContactInfo(address);
2152                                 }
2153                                 if (c.getName().isPresent()) {
2154                                     contact.name = c.getName().get();
2155                                 }
2156                                 if (c.getColor().isPresent()) {
2157                                     contact.color = c.getColor().get();
2158                                 }
2159                                 if (c.getProfileKey().isPresent()) {
2160                                     account.getProfileStore().storeProfileKey(address, c.getProfileKey().get());
2161                                 }
2162                                 if (c.getVerified().isPresent()) {
2163                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
2164                                     account.getSignalProtocolStore()
2165                                             .setIdentityTrustLevel(verifiedMessage.getDestination(),
2166                                                     verifiedMessage.getIdentityKey(),
2167                                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2168                                 }
2169                                 if (c.getExpirationTimer().isPresent()) {
2170                                     contact.messageExpirationTime = c.getExpirationTimer().get();
2171                                 }
2172                                 contact.blocked = c.isBlocked();
2173                                 contact.inboxPosition = c.getInboxPosition().orNull();
2174                                 contact.archived = c.isArchived();
2175                                 account.getContactStore().updateContact(contact);
2176
2177                                 if (c.getAvatar().isPresent()) {
2178                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
2179                                 }
2180                             }
2181                         }
2182                     } catch (Exception e) {
2183                         e.printStackTrace();
2184                     } finally {
2185                         if (tmpFile != null) {
2186                             try {
2187                                 Files.delete(tmpFile.toPath());
2188                             } catch (IOException e) {
2189                                 logger.warn("Failed to delete received contacts temp file “{}”, ignoring: {}",
2190                                         tmpFile,
2191                                         e.getMessage());
2192                             }
2193                         }
2194                     }
2195                 }
2196                 if (syncMessage.getVerified().isPresent()) {
2197                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
2198                     account.getSignalProtocolStore()
2199                             .setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()),
2200                                     verifiedMessage.getIdentityKey(),
2201                                     TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
2202                 }
2203                 if (syncMessage.getStickerPackOperations().isPresent()) {
2204                     final List<StickerPackOperationMessage> stickerPackOperationMessages = syncMessage.getStickerPackOperations()
2205                             .get();
2206                     for (StickerPackOperationMessage m : stickerPackOperationMessages) {
2207                         if (!m.getPackId().isPresent()) {
2208                             continue;
2209                         }
2210                         Sticker sticker = account.getStickerStore().getSticker(m.getPackId().get());
2211                         if (sticker == null) {
2212                             if (!m.getPackKey().isPresent()) {
2213                                 continue;
2214                             }
2215                             sticker = new Sticker(m.getPackId().get(), m.getPackKey().get());
2216                         }
2217                         sticker.setInstalled(!m.getType().isPresent()
2218                                 || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
2219                         account.getStickerStore().updateSticker(sticker);
2220                     }
2221                 }
2222                 if (syncMessage.getConfiguration().isPresent()) {
2223                     // TODO
2224                 }
2225             }
2226         }
2227         return actions;
2228     }
2229
2230     private File getContactAvatarFile(String number) {
2231         return new File(pathConfig.getAvatarsPath(), "contact-" + number);
2232     }
2233
2234     private File retrieveContactAvatarAttachment(
2235             SignalServiceAttachment attachment, String number
2236     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2237         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2238         if (attachment.isPointer()) {
2239             SignalServiceAttachmentPointer pointer = attachment.asPointer();
2240             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
2241         } else {
2242             SignalServiceAttachmentStream stream = attachment.asStream();
2243             return Utils.retrieveAttachment(stream, getContactAvatarFile(number));
2244         }
2245     }
2246
2247     private File getGroupAvatarFile(GroupId groupId) {
2248         return new File(pathConfig.getAvatarsPath(), "group-" + groupId.toBase64().replace("/", "_"));
2249     }
2250
2251     private File retrieveGroupAvatarAttachment(
2252             SignalServiceAttachment attachment, GroupId groupId
2253     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2254         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2255         if (attachment.isPointer()) {
2256             SignalServiceAttachmentPointer pointer = attachment.asPointer();
2257             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
2258         } else {
2259             SignalServiceAttachmentStream stream = attachment.asStream();
2260             return Utils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
2261         }
2262     }
2263
2264     private File retrieveGroupAvatar(
2265             GroupId groupId, GroupSecretParams groupSecretParams, String cdnKey
2266     ) throws IOException {
2267         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2268         SignalServiceMessageReceiver receiver = getOrCreateMessageReceiver();
2269         File outputFile = getGroupAvatarFile(groupId);
2270         GroupsV2Operations.GroupOperations groupOperations = groupsV2Operations.forGroup(groupSecretParams);
2271
2272         File tmpFile = IOUtils.createTempFile();
2273         tmpFile.deleteOnExit();
2274         try (InputStream input = receiver.retrieveGroupsV2ProfileAvatar(cdnKey,
2275                 tmpFile,
2276                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2277             byte[] encryptedData = IOUtils.readFully(input);
2278
2279             byte[] decryptedData = groupOperations.decryptAvatar(encryptedData);
2280             try (OutputStream output = new FileOutputStream(outputFile)) {
2281                 output.write(decryptedData);
2282             }
2283         } finally {
2284             try {
2285                 Files.delete(tmpFile.toPath());
2286             } catch (IOException e) {
2287                 logger.warn("Failed to delete received group avatar temp file “{}”, ignoring: {}",
2288                         tmpFile,
2289                         e.getMessage());
2290             }
2291         }
2292         return outputFile;
2293     }
2294
2295     private File getProfileAvatarFile(SignalServiceAddress address) {
2296         return new File(pathConfig.getAvatarsPath(), "profile-" + address.getLegacyIdentifier());
2297     }
2298
2299     private File retrieveProfileAvatar(
2300             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
2301     ) throws IOException {
2302         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
2303         SignalServiceMessageReceiver receiver = getOrCreateMessageReceiver();
2304         File outputFile = getProfileAvatarFile(address);
2305
2306         File tmpFile = IOUtils.createTempFile();
2307         try (InputStream input = receiver.retrieveProfileAvatar(avatarPath,
2308                 tmpFile,
2309                 profileKey,
2310                 ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
2311             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
2312             IOUtils.copyStreamToFile(input, outputFile, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
2313         } finally {
2314             try {
2315                 Files.delete(tmpFile.toPath());
2316             } catch (IOException e) {
2317                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
2318                         tmpFile,
2319                         e.getMessage());
2320             }
2321         }
2322         return outputFile;
2323     }
2324
2325     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
2326         return new File(pathConfig.getAttachmentsPath(), attachmentId.toString());
2327     }
2328
2329     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException, MissingConfigurationException {
2330         IOUtils.createPrivateDirectories(pathConfig.getAttachmentsPath());
2331         return retrieveAttachment(pointer, getAttachmentFile(pointer.getRemoteId()), true);
2332     }
2333
2334     private File retrieveAttachment(
2335             SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview
2336     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2337         if (storePreview && pointer.getPreview().isPresent()) {
2338             File previewFile = new File(outputFile + ".preview");
2339             try (OutputStream output = new FileOutputStream(previewFile)) {
2340                 byte[] preview = pointer.getPreview().get();
2341                 output.write(preview, 0, preview.length);
2342             } catch (FileNotFoundException e) {
2343                 e.printStackTrace();
2344                 return null;
2345             }
2346         }
2347
2348         final SignalServiceMessageReceiver messageReceiver = getOrCreateMessageReceiver();
2349
2350         File tmpFile = IOUtils.createTempFile();
2351         try (InputStream input = messageReceiver.retrieveAttachment(pointer,
2352                 tmpFile,
2353                 ServiceConfig.MAX_ATTACHMENT_SIZE)) {
2354             IOUtils.copyStreamToFile(input, outputFile);
2355         } finally {
2356             try {
2357                 Files.delete(tmpFile.toPath());
2358             } catch (IOException e) {
2359                 logger.warn("Failed to delete received attachment temp file “{}”, ignoring: {}",
2360                         tmpFile,
2361                         e.getMessage());
2362             }
2363         }
2364         return outputFile;
2365     }
2366
2367     private InputStream retrieveAttachmentAsStream(
2368             SignalServiceAttachmentPointer pointer, File tmpFile
2369     ) throws IOException, InvalidMessageException, MissingConfigurationException {
2370         final SignalServiceMessageReceiver messageReceiver = getOrCreateMessageReceiver();
2371         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
2372     }
2373
2374     void sendGroups() throws IOException, UntrustedIdentityException {
2375         File groupsFile = IOUtils.createTempFile();
2376
2377         try {
2378             try (OutputStream fos = new FileOutputStream(groupsFile)) {
2379                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
2380                 for (GroupInfo record : account.getGroupStore().getGroups()) {
2381                     if (record instanceof GroupInfoV1) {
2382                         GroupInfoV1 groupInfo = (GroupInfoV1) record;
2383                         out.write(new DeviceGroup(groupInfo.getGroupId().serialize(),
2384                                 Optional.fromNullable(groupInfo.name),
2385                                 new ArrayList<>(groupInfo.getMembers()),
2386                                 createGroupAvatarAttachment(groupInfo.getGroupId()),
2387                                 groupInfo.isMember(account.getSelfAddress()),
2388                                 Optional.of(groupInfo.messageExpirationTime),
2389                                 Optional.fromNullable(groupInfo.color),
2390                                 groupInfo.blocked,
2391                                 Optional.fromNullable(groupInfo.inboxPosition),
2392                                 groupInfo.archived));
2393                     }
2394                 }
2395             }
2396
2397             if (groupsFile.exists() && groupsFile.length() > 0) {
2398                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
2399                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2400                             .withStream(groupsFileStream)
2401                             .withContentType("application/octet-stream")
2402                             .withLength(groupsFile.length())
2403                             .build();
2404
2405                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
2406                 }
2407             }
2408         } finally {
2409             try {
2410                 Files.delete(groupsFile.toPath());
2411             } catch (IOException e) {
2412                 logger.warn("Failed to delete groups temp file “{}”, ignoring: {}", groupsFile, e.getMessage());
2413             }
2414         }
2415     }
2416
2417     public void sendContacts() throws IOException, UntrustedIdentityException {
2418         File contactsFile = IOUtils.createTempFile();
2419
2420         try {
2421             try (OutputStream fos = new FileOutputStream(contactsFile)) {
2422                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
2423                 for (ContactInfo record : account.getContactStore().getContacts()) {
2424                     VerifiedMessage verifiedMessage = null;
2425                     IdentityInfo currentIdentity = account.getSignalProtocolStore().getIdentity(record.getAddress());
2426                     if (currentIdentity != null) {
2427                         verifiedMessage = new VerifiedMessage(record.getAddress(),
2428                                 currentIdentity.getIdentityKey(),
2429                                 currentIdentity.getTrustLevel().toVerifiedState(),
2430                                 currentIdentity.getDateAdded().getTime());
2431                     }
2432
2433                     ProfileKey profileKey = account.getProfileStore().getProfileKey(record.getAddress());
2434                     out.write(new DeviceContact(record.getAddress(),
2435                             Optional.fromNullable(record.name),
2436                             createContactAvatarAttachment(record.number),
2437                             Optional.fromNullable(record.color),
2438                             Optional.fromNullable(verifiedMessage),
2439                             Optional.fromNullable(profileKey),
2440                             record.blocked,
2441                             Optional.of(record.messageExpirationTime),
2442                             Optional.fromNullable(record.inboxPosition),
2443                             record.archived));
2444                 }
2445
2446                 if (account.getProfileKey() != null) {
2447                     // Send our own profile key as well
2448                     out.write(new DeviceContact(account.getSelfAddress(),
2449                             Optional.absent(),
2450                             Optional.absent(),
2451                             Optional.absent(),
2452                             Optional.absent(),
2453                             Optional.of(account.getProfileKey()),
2454                             false,
2455                             Optional.absent(),
2456                             Optional.absent(),
2457                             false));
2458                 }
2459             }
2460
2461             if (contactsFile.exists() && contactsFile.length() > 0) {
2462                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
2463                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
2464                             .withStream(contactsFileStream)
2465                             .withContentType("application/octet-stream")
2466                             .withLength(contactsFile.length())
2467                             .build();
2468
2469                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
2470                 }
2471             }
2472         } finally {
2473             try {
2474                 Files.delete(contactsFile.toPath());
2475             } catch (IOException e) {
2476                 logger.warn("Failed to delete contacts temp file “{}”, ignoring: {}", contactsFile, e.getMessage());
2477             }
2478         }
2479     }
2480
2481     void sendBlockedList() throws IOException, UntrustedIdentityException {
2482         List<SignalServiceAddress> addresses = new ArrayList<>();
2483         for (ContactInfo record : account.getContactStore().getContacts()) {
2484             if (record.blocked) {
2485                 addresses.add(record.getAddress());
2486             }
2487         }
2488         List<byte[]> groupIds = new ArrayList<>();
2489         for (GroupInfo record : account.getGroupStore().getGroups()) {
2490             if (record.isBlocked()) {
2491                 groupIds.add(record.getGroupId().serialize());
2492             }
2493         }
2494         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2495     }
2496
2497     private void sendVerifiedMessage(
2498             SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel
2499     ) throws IOException, UntrustedIdentityException {
2500         VerifiedMessage verifiedMessage = new VerifiedMessage(destination,
2501                 identityKey,
2502                 trustLevel.toVerifiedState(),
2503                 System.currentTimeMillis());
2504         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2505     }
2506
2507     public List<ContactInfo> getContacts() {
2508         return account.getContactStore().getContacts();
2509     }
2510
2511     public ContactInfo getContact(String number) {
2512         return account.getContactStore().getContact(Util.getSignalServiceAddressFromIdentifier(number));
2513     }
2514
2515     public GroupInfo getGroup(GroupId groupId) {
2516         return account.getGroupStore().getGroup(groupId);
2517     }
2518
2519     public List<IdentityInfo> getIdentities() {
2520         return account.getSignalProtocolStore().getIdentities();
2521     }
2522
2523     public List<IdentityInfo> getIdentities(String number) throws InvalidNumberException {
2524         return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));
2525     }
2526
2527     /**
2528      * Trust this the identity with this fingerprint
2529      *
2530      * @param name        username of the identity
2531      * @param fingerprint Fingerprint
2532      */
2533     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2534         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2535         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2536         if (ids == null) {
2537             return false;
2538         }
2539         for (IdentityInfo id : ids) {
2540             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
2541                 continue;
2542             }
2543
2544             account.getSignalProtocolStore()
2545                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2546             try {
2547                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2548             } catch (IOException | UntrustedIdentityException e) {
2549                 e.printStackTrace();
2550             }
2551             account.save();
2552             return true;
2553         }
2554         return false;
2555     }
2556
2557     /**
2558      * Trust this the identity with this safety number
2559      *
2560      * @param name         username of the identity
2561      * @param safetyNumber Safety number
2562      */
2563     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2564         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2565         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2566         if (ids == null) {
2567             return false;
2568         }
2569         for (IdentityInfo id : ids) {
2570             if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {
2571                 continue;
2572             }
2573
2574             account.getSignalProtocolStore()
2575                     .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2576             try {
2577                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2578             } catch (IOException | UntrustedIdentityException e) {
2579                 e.printStackTrace();
2580             }
2581             account.save();
2582             return true;
2583         }
2584         return false;
2585     }
2586
2587     /**
2588      * Trust all keys of this identity without verification
2589      *
2590      * @param name username of the identity
2591      */
2592     public boolean trustIdentityAllKeys(String name) {
2593         SignalServiceAddress address = resolveSignalServiceAddress(name);
2594         List<IdentityInfo> ids = account.getSignalProtocolStore().getIdentities(address);
2595         if (ids == null) {
2596             return false;
2597         }
2598         for (IdentityInfo id : ids) {
2599             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2600                 account.getSignalProtocolStore()
2601                         .setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2602                 try {
2603                     sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2604                 } catch (IOException | UntrustedIdentityException e) {
2605                     e.printStackTrace();
2606                 }
2607             }
2608         }
2609         account.save();
2610         return true;
2611     }
2612
2613     public String computeSafetyNumber(
2614             SignalServiceAddress theirAddress, IdentityKey theirIdentityKey
2615     ) {
2616         return Utils.computeSafetyNumber(account.getSelfAddress(),
2617                 getIdentityKeyPair().getPublicKey(),
2618                 theirAddress,
2619                 theirIdentityKey);
2620     }
2621
2622     void saveAccount() {
2623         account.save();
2624     }
2625
2626     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2627         String canonicalizedNumber = UuidUtil.isUuid(identifier)
2628                 ? identifier
2629                 : Util.canonicalizeNumber(identifier, account.getUsername());
2630         return resolveSignalServiceAddress(canonicalizedNumber);
2631     }
2632
2633     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2634         SignalServiceAddress address = Util.getSignalServiceAddressFromIdentifier(identifier);
2635
2636         return resolveSignalServiceAddress(address);
2637     }
2638
2639     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2640         if (address.matches(account.getSelfAddress())) {
2641             return account.getSelfAddress();
2642         }
2643
2644         return account.getRecipientStore().resolveServiceAddress(address);
2645     }
2646
2647     @Override
2648     public void close() throws IOException {
2649         if (messagePipe != null) {
2650             messagePipe.shutdown();
2651             messagePipe = null;
2652         }
2653
2654         if (unidentifiedMessagePipe != null) {
2655             unidentifiedMessagePipe.shutdown();
2656             unidentifiedMessagePipe = null;
2657         }
2658
2659         account.close();
2660     }
2661
2662     public interface ReceiveMessageHandler {
2663
2664         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2665     }
2666 }