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.storage.SignalAccount;
  22 import org.asamk.signal.storage.contacts.ContactInfo;
  23 import org.asamk.signal.storage.groups.GroupInfo;
  24 import org.asamk.signal.storage.groups.GroupInfoV1;
  25 import org.asamk.signal.storage.groups.GroupInfoV2;
  26 import org.asamk.signal.storage.profiles.SignalProfile;
  27 import org.asamk.signal.storage.profiles.SignalProfileEntry;
  28 import org.asamk.signal.storage.protocol.JsonIdentityKeyStore;
  29 import org.asamk.signal.storage.stickers.Sticker;
  30 import org.asamk.signal.util.IOUtils;
  31 import org.asamk.signal.util.Util;
  32 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  33 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  34 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  35 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  36 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  37 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  38 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  39 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  40 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  41 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  42 import org.signal.libsignal.metadata.SelfSendException;
  43 import org.signal.libsignal.metadata.certificate.InvalidCertificateException;
  44 import org.signal.storageservice.protos.groups.local.DecryptedGroup;
  45 import org.signal.storageservice.protos.groups.local.DecryptedMember;
  46 import org.signal.zkgroup.InvalidInputException;
  47 import org.signal.zkgroup.VerificationFailedException;
  48 import org.signal.zkgroup.auth.AuthCredentialResponse;
  49 import org.signal.zkgroup.groups.GroupMasterKey;
  50 import org.signal.zkgroup.groups.GroupSecretParams;
  51 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  52 import org.signal.zkgroup.profiles.ProfileKey;
  53 import org.whispersystems.libsignal.IdentityKey;
  54 import org.whispersystems.libsignal.IdentityKeyPair;
  55 import org.whispersystems.libsignal.InvalidKeyException;
  56 import org.whispersystems.libsignal.InvalidMessageException;
  57 import org.whispersystems.libsignal.InvalidVersionException;
  58 import org.whispersystems.libsignal.ecc.Curve;
  59 import org.whispersystems.libsignal.ecc.ECKeyPair;
  60 import org.whispersystems.libsignal.ecc.ECPublicKey;
  61 import org.whispersystems.libsignal.state.PreKeyRecord;
  62 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  63 import org.whispersystems.libsignal.util.KeyHelper;
  64 import org.whispersystems.libsignal.util.Medium;
  65 import org.whispersystems.libsignal.util.Pair;
  66 import org.whispersystems.libsignal.util.guava.Optional;
  67 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  68 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  69 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  70 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  71 import org.whispersystems.signalservice.api.crypto.InvalidCiphertextException;
  72 import org.whispersystems.signalservice.api.crypto.ProfileCipher;
  73 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  74 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccess;
  75 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
  76 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  77 import org.whispersystems.signalservice.api.groupsv2.ClientZkOperations;
  78 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Api;
  79 import org.whispersystems.signalservice.api.groupsv2.GroupsV2AuthorizationString;
  80 import org.whispersystems.signalservice.api.groupsv2.GroupsV2Operations;
  81 import org.whispersystems.signalservice.api.groupsv2.InvalidGroupStateException;
  82 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  83 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  84 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  85 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
  86 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
  87 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
  88 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  89 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
  90 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
  91 import org.whispersystems.signalservice.api.messages.SignalServiceGroupV2;
  92 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
  93 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload;
  94 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload.StickerInfo;
  95 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
  96 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
  97 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
  98 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
  99 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
 100 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
 101 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
 102 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
 103 import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
 104 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
 105 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
 106 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
 107 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
 108 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 109 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 110 import org.whispersystems.signalservice.api.push.ContactTokenDetails;
 111 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 112 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 113 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 114 import org.whispersystems.signalservice.api.util.SleepTimer;
 115 import org.whispersystems.signalservice.api.util.StreamDetails;
 116 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 117 import org.whispersystems.signalservice.api.util.UuidUtil;
 118 import org.whispersystems.signalservice.internal.configuration.SignalServiceConfiguration;
 119 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 120 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 121 import org.whispersystems.signalservice.internal.push.VerifyAccountResponse;
 122 import org.whispersystems.signalservice.internal.util.DynamicCredentialsProvider;
 123 import org.whispersystems.signalservice.internal.util.Hex;
 124 import org.whispersystems.util.Base64;
 125
 126 import java.io.Closeable;
 127 import java.io.File;
 128 import java.io.FileInputStream;
 129 import java.io.FileNotFoundException;
 130 import java.io.FileOutputStream;
 131 import java.io.IOException;
 132 import java.io.InputStream;
 133 import java.io.OutputStream;
 134 import java.net.URI;
 135 import java.net.URISyntaxException;
 136 import java.net.URLEncoder;
 137 import java.nio.charset.StandardCharsets;
 138 import java.nio.file.Files;
 139 import java.nio.file.Paths;
 140 import java.nio.file.StandardCopyOption;
 141 import java.util.ArrayList;
 142 import java.util.Arrays;
 143 import java.util.Collection;
 144 import java.util.Collections;
 145 import java.util.Date;
 146 import java.util.HashMap;
 147 import java.util.HashSet;
 148 import java.util.List;
 149 import java.util.Locale;
 150 import java.util.Objects;
 151 import java.util.Set;
 152 import java.util.UUID;
 153 import java.util.concurrent.ExecutionException;
 154 import java.util.concurrent.ExecutorService;
 155 import java.util.concurrent.TimeUnit;
 156 import java.util.concurrent.TimeoutException;
 157 import java.util.stream.Collectors;
 158 import java.util.zip.ZipEntry;
 159 import java.util.zip.ZipFile;
 160
 161 import static org.asamk.signal.manager.ServiceConfig.capabilities;
 162
 163 public class Manager implements Closeable {
 164
 165     private final SleepTimer timer = new UptimeSleepTimer();
 166     private final SignalServiceConfiguration serviceConfiguration;
 167     private final String userAgent;
 168
 169     private final SignalAccount account;
 170     private final PathConfig pathConfig;
 171     private SignalServiceAccountManager accountManager;
 172     private GroupsV2Api groupsV2Api;
 173     private SignalServiceMessagePipe messagePipe = null;
 174     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 175     private final boolean discoverableByPhoneNumber = true;
 176
 177     public Manager(SignalAccount account, PathConfig pathConfig, SignalServiceConfiguration serviceConfiguration, String userAgent) {
 178         this.account = account;
 179         this.pathConfig = pathConfig;
 180         this.serviceConfiguration = serviceConfiguration;
 181         this.userAgent = userAgent;
 182         this.accountManager = createSignalServiceAccountManager();
 183         this.groupsV2Api = accountManager.getGroupsV2Api();
 184
 185         this.account.setResolver(this::resolveSignalServiceAddress);
 186     }
 187
 188     public String getUsername() {
 189         return account.getUsername();
 190     }
 191
 192     public SignalServiceAddress getSelfAddress() {
 193         return account.getSelfAddress();
 194     }
 195
 196     private SignalServiceAccountManager createSignalServiceAccountManager() {
 197         GroupsV2Operations groupsV2Operations = capabilities.isGv2()
 198                 ? new GroupsV2Operations(ClientZkOperations.create(serviceConfiguration))
 199                 : null;
 200
 201         return new SignalServiceAccountManager(serviceConfiguration,
 202                 new DynamicCredentialsProvider(account.getUuid(), account.getUsername(), account.getPassword(), null, account.getDeviceId()),
 203                 userAgent,
 204                 groupsV2Operations,
 205                 timer);
 206     }
 207
 208     private IdentityKeyPair getIdentityKeyPair() {
 209         return account.getSignalProtocolStore().getIdentityKeyPair();
 210     }
 211
 212     public int getDeviceId() {
 213         return account.getDeviceId();
 214     }
 215
 216     private String getMessageCachePath() {
 217         return pathConfig.getDataPath() + "/" + account.getUsername() + ".d/msg-cache";
 218     }
 219
 220     private String getMessageCachePath(String sender) {
 221         if (sender == null || sender.isEmpty()) {
 222             return getMessageCachePath();
 223         }
 224
 225         return getMessageCachePath() + "/" + sender.replace("/", "_");
 226     }
 227
 228     private File getMessageCacheFile(String sender, long now, long timestamp) throws IOException {
 229         String cachePath = getMessageCachePath(sender);
 230         IOUtils.createPrivateDirectories(cachePath);
 231         return new File(cachePath + "/" + now + "_" + timestamp);
 232     }
 233
 234     public static Manager init(String username, String settingsPath, SignalServiceConfiguration serviceConfiguration, String userAgent) throws IOException {
 235         PathConfig pathConfig = PathConfig.createDefault(settingsPath);
 236
 237         if (!SignalAccount.userExists(pathConfig.getDataPath(), username)) {
 238             IdentityKeyPair identityKey = KeyHelper.generateIdentityKeyPair();
 239             int registrationId = KeyHelper.generateRegistrationId(false);
 240
 241             ProfileKey profileKey = KeyUtils.createProfileKey();
 242             SignalAccount account = SignalAccount.create(pathConfig.getDataPath(), username, identityKey, registrationId, profileKey);
 243             account.save();
 244
 245             return new Manager(account, pathConfig, serviceConfiguration, userAgent);
 246         }
 247
 248         SignalAccount account = SignalAccount.load(pathConfig.getDataPath(), username);
 249
 250         Manager m = new Manager(account, pathConfig, serviceConfiguration, userAgent);
 251
 252         m.migrateLegacyConfigs();
 253         m.updateAccountAttributes();
 254
 255         return m;
 256     }
 257
 258     private void migrateLegacyConfigs() {
 259         if (account.getProfileKey() == null) {
 260             // Old config file, creating new profile key
 261             account.setProfileKey(KeyUtils.createProfileKey());
 262             account.save();
 263         }
 264         // Store profile keys only in profile store
 265         for (ContactInfo contact : account.getContactStore().getContacts()) {
 266             String profileKeyString = contact.profileKey;
 267             if (profileKeyString == null) {
 268                 continue;
 269             }
 270             final ProfileKey profileKey;
 271             try {
 272                 profileKey = new ProfileKey(Base64.decode(profileKeyString));
 273             } catch (InvalidInputException | IOException e) {
 274                 continue;
 275             }
 276             contact.profileKey = null;
 277             account.getProfileStore().storeProfileKey(contact.getAddress(), profileKey);
 278         }
 279     }
 280
 281     public void checkAccountState() throws IOException {
 282         if (account.isRegistered()) {
 283             if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 284                 refreshPreKeys();
 285                 account.save();
 286             }
 287             if (account.getUuid() == null) {
 288                 account.setUuid(accountManager.getOwnUuid());
 289                 account.save();
 290             }
 291         }
 292     }
 293
 294     public boolean isRegistered() {
 295         return account.isRegistered();
 296     }
 297
 298     public void register(boolean voiceVerification, String captcha) throws IOException {
 299         account.setPassword(KeyUtils.createPassword());
 300
 301         // Resetting UUID, because registering doesn't work otherwise
 302         account.setUuid(null);
 303         accountManager = createSignalServiceAccountManager();
 304         this.groupsV2Api = accountManager.getGroupsV2Api();
 305
 306         if (voiceVerification) {
 307             accountManager.requestVoiceVerificationCode(Locale.getDefault(), Optional.fromNullable(captcha), Optional.absent());
 308         } else {
 309             accountManager.requestSmsVerificationCode(false, Optional.fromNullable(captcha), Optional.absent());
 310         }
 311
 312         account.setRegistered(false);
 313         account.save();
 314     }
 315
 316     public void updateAccountAttributes() throws IOException {
 317         accountManager.setAccountAttributes(account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, account.getRegistrationLockPin(), account.getRegistrationLock(), getSelfUnidentifiedAccessKey(), false, capabilities, discoverableByPhoneNumber);
 318     }
 319
 320     public void setProfile(String name, File avatar) throws IOException {
 321         try (final StreamDetails streamDetails = avatar == null ? null : Utils.createStreamDetailsFromFile(avatar)) {
 322             accountManager.setVersionedProfile(account.getUuid(), account.getProfileKey(), name, streamDetails);
 323         }
 324     }
 325
 326     public void unregister() throws IOException {
 327         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 328         // If this is the master device, other users can't send messages to this number anymore.
 329         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 330         accountManager.setGcmId(Optional.absent());
 331
 332         account.setRegistered(false);
 333         account.save();
 334     }
 335
 336     public List<DeviceInfo> getLinkedDevices() throws IOException {
 337         List<DeviceInfo> devices = accountManager.getDevices();
 338         account.setMultiDevice(devices.size() > 1);
 339         account.save();
 340         return devices;
 341     }
 342
 343     public void removeLinkedDevices(int deviceId) throws IOException {
 344         accountManager.removeDevice(deviceId);
 345         List<DeviceInfo> devices = accountManager.getDevices();
 346         account.setMultiDevice(devices.size() > 1);
 347         account.save();
 348     }
 349
 350     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 351         Utils.DeviceLinkInfo info = Utils.parseDeviceLinkUri(linkUri);
 352
 353         addDevice(info.deviceIdentifier, info.deviceKey);
 354     }
 355
 356     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 357         IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 358         String verificationCode = accountManager.getNewDeviceVerificationCode();
 359
 360         accountManager.addDevice(deviceIdentifier, deviceKey, identityKeyPair, Optional.of(account.getProfileKey().serialize()), verificationCode);
 361         account.setMultiDevice(true);
 362         account.save();
 363     }
 364
 365     private List<PreKeyRecord> generatePreKeys() {
 366         List<PreKeyRecord> records = new ArrayList<>(ServiceConfig.PREKEY_BATCH_SIZE);
 367
 368         final int offset = account.getPreKeyIdOffset();
 369         for (int i = 0; i < ServiceConfig.PREKEY_BATCH_SIZE; i++) {
 370             int preKeyId = (offset + i) % Medium.MAX_VALUE;
 371             ECKeyPair keyPair = Curve.generateKeyPair();
 372             PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);
 373
 374             records.add(record);
 375         }
 376
 377         account.addPreKeys(records);
 378         account.save();
 379
 380         return records;
 381     }
 382
 383     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 384         try {
 385             ECKeyPair keyPair = Curve.generateKeyPair();
 386             byte[] signature = Curve.calculateSignature(identityKeyPair.getPrivateKey(), keyPair.getPublicKey().serialize());
 387             SignedPreKeyRecord record = new SignedPreKeyRecord(account.getNextSignedPreKeyId(), System.currentTimeMillis(), keyPair, signature);
 388
 389             account.addSignedPreKey(record);
 390             account.save();
 391
 392             return record;
 393         } catch (InvalidKeyException e) {
 394             throw new AssertionError(e);
 395         }
 396     }
 397
 398     public void verifyAccount(String verificationCode, String pin) throws IOException {
 399         verificationCode = verificationCode.replace("-", "");
 400         account.setSignalingKey(KeyUtils.createSignalingKey());
 401         // TODO make unrestricted unidentified access configurable
 402         VerifyAccountResponse response = accountManager.verifyAccountWithCode(verificationCode, account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, pin, null, getSelfUnidentifiedAccessKey(), false, capabilities, discoverableByPhoneNumber);
 403
 404         UUID uuid = UuidUtil.parseOrNull(response.getUuid());
 405         // TODO response.isStorageCapable()
 406         //accountManager.setGcmId(Optional.of(GoogleCloudMessaging.getInstance(this).register(REGISTRATION_ID)));
 407         account.setRegistered(true);
 408         account.setUuid(uuid);
 409         account.setRegistrationLockPin(pin);
 410         account.getSignalProtocolStore().saveIdentity(account.getSelfAddress(), getIdentityKeyPair().getPublicKey(), TrustLevel.TRUSTED_VERIFIED);
 411
 412         refreshPreKeys();
 413         account.save();
 414     }
 415
 416     public void setRegistrationLockPin(Optional<String> pin) throws IOException {
 417         if (pin.isPresent()) {
 418             account.setRegistrationLockPin(pin.get());
 419             throw new RuntimeException("Not implemented anymore, will be replaced with KBS");
 420         } else {
 421             account.setRegistrationLockPin(null);
 422             accountManager.removeRegistrationLockV1();
 423         }
 424         account.save();
 425     }
 426
 427     void refreshPreKeys() throws IOException {
 428         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 429         final IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 430         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 431
 432         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 433     }
 434
 435     private SignalServiceMessageReceiver getMessageReceiver() {
 436         final ClientZkProfileOperations clientZkProfileOperations = capabilities.isGv2()
 437                 ? ClientZkOperations.create(serviceConfiguration).getProfileOperations()
 438                 : null;
 439         return new SignalServiceMessageReceiver(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(), account.getDeviceId(), account.getSignalingKey(), userAgent, null, timer, clientZkProfileOperations);
 440     }
 441
 442     private SignalServiceMessageSender getMessageSender() {
 443         final ClientZkProfileOperations clientZkProfileOperations = capabilities.isGv2()
 444                 ? ClientZkOperations.create(serviceConfiguration).getProfileOperations()
 445                 : null;
 446         final ExecutorService executor = null;
 447         return new SignalServiceMessageSender(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(),
 448                 account.getDeviceId(), account.getSignalProtocolStore(), userAgent, account.isMultiDevice(), Optional.fromNullable(messagePipe), Optional.fromNullable(unidentifiedMessagePipe), Optional.absent(), clientZkProfileOperations, executor, ServiceConfig.MAX_ENVELOPE_SIZE);
 449     }
 450
 451     private SignalServiceProfile getEncryptedRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess) throws IOException {
 452         SignalServiceMessagePipe pipe = unidentifiedMessagePipe != null && unidentifiedAccess.isPresent() ? unidentifiedMessagePipe
 453                 : messagePipe;
 454
 455         if (pipe != null) {
 456             try {
 457                 return pipe.getProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).get(10, TimeUnit.SECONDS).getProfile();
 458             } catch (IOException | InterruptedException | ExecutionException | TimeoutException ignored) {
 459             }
 460         }
 461
 462         SignalServiceMessageReceiver receiver = getMessageReceiver();
 463         try {
 464             return receiver.retrieveProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).get(10, TimeUnit.SECONDS).getProfile();
 465         } catch (InterruptedException | ExecutionException | TimeoutException e) {
 466             throw new IOException("Failed to retrieve profile", e);
 467         }
 468     }
 469
 470     private SignalProfile getRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess, ProfileKey profileKey) throws IOException {
 471         SignalProfileEntry profileEntry = account.getProfileStore().getProfile(address);
 472         long now = new Date().getTime();
 473         // Profiles are cache for 24h before retrieving them again
 474         if (profileEntry == null || profileEntry.getProfile() == null || now - profileEntry.getLastUpdateTimestamp() > 24 * 60 * 60 * 1000) {
 475             SignalProfile profile = retrieveRecipientProfile(address, unidentifiedAccess, profileKey);
 476             account.getProfileStore().updateProfile(address, profileKey, now, profile);
 477             return profile;
 478         }
 479         return profileEntry.getProfile();
 480     }
 481
 482     private SignalProfile retrieveRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess, ProfileKey profileKey) throws IOException {
 483         final SignalServiceProfile encryptedProfile = getEncryptedRecipientProfile(address, unidentifiedAccess);
 484
 485         File avatarFile = null;
 486         try {
 487             avatarFile = encryptedProfile.getAvatar() == null ? null : retrieveProfileAvatar(address, encryptedProfile.getAvatar(), profileKey);
 488         } catch (Throwable e) {
 489             System.err.println("Failed to retrieve profile avatar, ignoring: " + e.getMessage());
 490         }
 491
 492         ProfileCipher profileCipher = new ProfileCipher(profileKey);
 493         try {
 494             return new SignalProfile(
 495                     encryptedProfile.getIdentityKey(),
 496                     encryptedProfile.getName() == null ? null : new String(profileCipher.decryptName(Base64.decode(encryptedProfile.getName()))),
 497                     avatarFile,
 498                     encryptedProfile.getUnidentifiedAccess() == null || !profileCipher.verifyUnidentifiedAccess(Base64.decode(encryptedProfile.getUnidentifiedAccess())) ? null : encryptedProfile.getUnidentifiedAccess(),
 499                     encryptedProfile.isUnrestrictedUnidentifiedAccess(),
 500                     encryptedProfile.getCapabilities());
 501         } catch (InvalidCiphertextException e) {
 502             return null;
 503         }
 504     }
 505
 506     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(byte[] groupId) throws IOException {
 507         File file = getGroupAvatarFile(groupId);
 508         if (!file.exists()) {
 509             return Optional.absent();
 510         }
 511
 512         return Optional.of(Utils.createAttachment(file));
 513     }
 514
 515     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(String number) throws IOException {
 516         File file = getContactAvatarFile(number);
 517         if (!file.exists()) {
 518             return Optional.absent();
 519         }
 520
 521         return Optional.of(Utils.createAttachment(file));
 522     }
 523
 524     private GroupInfo getGroupForSending(byte[] groupId) throws GroupNotFoundException, NotAGroupMemberException {
 525         GroupInfo g = account.getGroupStore().getGroup(groupId);
 526         if (g == null) {
 527             throw new GroupNotFoundException(groupId);
 528         }
 529         if (!g.isMember(account.getSelfAddress())) {
 530             throw new NotAGroupMemberException(groupId, g.getTitle());
 531         }
 532         return g;
 533     }
 534
 535     public List<GroupInfo> getGroups() {
 536         return account.getGroupStore().getGroups();
 537     }
 538
 539     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 540             String messageText,
 541             List<String> attachments,
 542             byte[] groupId
 543     )
 544             throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 545         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 546         if (attachments != null) {
 547             messageBuilder.withAttachments(Utils.getSignalServiceAttachments(attachments));
 548         }
 549
 550         final GroupInfo g = getGroupForSending(groupId);
 551
 552         setGroupContext(messageBuilder, g);
 553         messageBuilder.withExpiration(g.getMessageExpirationTime());
 554
 555         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 556     }
 557
 558     private void setGroupContext(final SignalServiceDataMessage.Builder messageBuilder, final GroupInfo groupInfo) {
 559         if (groupInfo instanceof GroupInfoV1) {
 560             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 561                     .withId(groupInfo.groupId)
 562                     .build();
 563             messageBuilder.asGroupMessage(group);
 564         } else {
 565             final GroupInfoV2 groupInfoV2 = (GroupInfoV2) groupInfo;
 566             SignalServiceGroupV2 group = SignalServiceGroupV2.newBuilder(groupInfoV2.getMasterKey())
 567                     .withRevision(groupInfoV2.getGroup() == null ? 0 : groupInfoV2.getGroup().getRevision())
 568                     .build();
 569             messageBuilder.asGroupMessage(group);
 570         }
 571     }
 572
 573     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(String emoji, boolean remove, String targetAuthor,
 574                                                                         long targetSentTimestamp, byte[] groupId)
 575             throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 576         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, canonicalizeAndResolveSignalServiceAddress(targetAuthor), targetSentTimestamp);
 577         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 578                 .withReaction(reaction);
 579         final GroupInfo g = getGroupForSending(groupId);
 580         setGroupContext(messageBuilder, g);
 581         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 582     }
 583
 584     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(byte[] groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 585         SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 586                 .withId(groupId)
 587                 .build();
 588
 589         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 590                 .asGroupMessage(group);
 591
 592         final GroupInfo g = getGroupForSending(groupId);
 593         if (g instanceof GroupInfoV1) {
 594             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
 595             groupInfoV1.removeMember(account.getSelfAddress());
 596             account.getGroupStore().updateGroup(groupInfoV1);
 597         } else {
 598             throw new RuntimeException("TODO Not implemented!");
 599         }
 600
 601         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 602     }
 603
 604     private Pair<byte[], List<SendMessageResult>> sendUpdateGroupMessage(byte[] groupId, String name, Collection<SignalServiceAddress> members, String avatarFile) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 605         GroupInfoV1 g;
 606         if (groupId == null) {
 607             // Create new group
 608             g = new GroupInfoV1(KeyUtils.createGroupId());
 609             g.addMembers(Collections.singleton(account.getSelfAddress()));
 610         } else {
 611             GroupInfo group = getGroupForSending(groupId);
 612             if (!(group instanceof GroupInfoV1)) {
 613                 throw new RuntimeException("TODO Not implemented!");
 614             }
 615             g = (GroupInfoV1) group;
 616         }
 617
 618         if (name != null) {
 619             g.name = name;
 620         }
 621
 622         if (members != null) {
 623             final Set<String> newE164Members = new HashSet<>();
 624             for (SignalServiceAddress member : members) {
 625                 if (g.isMember(member) || !member.getNumber().isPresent()) {
 626                     continue;
 627                 }
 628                 newE164Members.add(member.getNumber().get());
 629             }
 630
 631             final List<ContactTokenDetails> contacts = accountManager.getContacts(newE164Members);
 632             if (contacts.size() != newE164Members.size()) {
 633                 // Some of the new members are not registered on Signal
 634                 for (ContactTokenDetails contact : contacts) {
 635                     newE164Members.remove(contact.getNumber());
 636                 }
 637                 throw new IOException("Failed to add members " + Util.join(", ", newE164Members) + " to group: Not registered on Signal");
 638             }
 639
 640             g.addMembers(members);
 641         }
 642
 643         if (avatarFile != null) {
 644             IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
 645             File aFile = getGroupAvatarFile(g.groupId);
 646             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 647         }
 648
 649         account.getGroupStore().updateGroup(g);
 650
 651         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 652
 653         final Pair<Long, List<SendMessageResult>> result = sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 654         return new Pair<>(g.groupId, result.second());
 655     }
 656
 657     Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(byte[] groupId, SignalServiceAddress recipient) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 658         GroupInfoV1 g;
 659         GroupInfo group = getGroupForSending(groupId);
 660         if (!(group instanceof GroupInfoV1)) {
 661             throw new RuntimeException("TODO Not implemented!");
 662         }
 663         g = (GroupInfoV1) group;
 664
 665         if (!g.isMember(recipient)) {
 666             throw new NotAGroupMemberException(groupId, g.name);
 667         }
 668
 669         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 670
 671         // Send group message only to the recipient who requested it
 672         return sendMessage(messageBuilder, Collections.singleton(recipient));
 673     }
 674
 675     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 676         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 677                 .withId(g.groupId)
 678                 .withName(g.name)
 679                 .withMembers(new ArrayList<>(g.getMembers()));
 680
 681         File aFile = getGroupAvatarFile(g.groupId);
 682         if (aFile.exists()) {
 683             try {
 684                 group.withAvatar(Utils.createAttachment(aFile));
 685             } catch (IOException e) {
 686                 throw new AttachmentInvalidException(aFile.toString(), e);
 687             }
 688         }
 689
 690         return SignalServiceDataMessage.newBuilder()
 691                 .asGroupMessage(group.build())
 692                 .withExpiration(g.messageExpirationTime);
 693     }
 694
 695     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(byte[] groupId, SignalServiceAddress recipient) throws IOException {
 696         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 697                 .withId(groupId);
 698
 699         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 700                 .asGroupMessage(group.build());
 701
 702         // Send group info request message to the recipient who sent us a message with this groupId
 703         return sendMessage(messageBuilder, Collections.singleton(recipient));
 704     }
 705
 706     void sendReceipt(SignalServiceAddress remoteAddress, long messageId) throws IOException, UntrustedIdentityException {
 707         SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
 708                 Collections.singletonList(messageId),
 709                 System.currentTimeMillis());
 710
 711         getMessageSender().sendReceipt(remoteAddress, getAccessFor(remoteAddress), receiptMessage);
 712     }
 713
 714     public Pair<Long, List<SendMessageResult>> sendMessage(String messageText, List<String> attachments,
 715                                                            List<String> recipients)
 716             throws IOException, AttachmentInvalidException, InvalidNumberException {
 717         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 718         if (attachments != null) {
 719             List<SignalServiceAttachment> attachmentStreams = Utils.getSignalServiceAttachments(attachments);
 720
 721             // Upload attachments here, so we only upload once even for multiple recipients
 722             SignalServiceMessageSender messageSender = getMessageSender();
 723             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 724             for (SignalServiceAttachment attachment : attachmentStreams) {
 725                 if (attachment.isStream()) {
 726                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 727                 } else if (attachment.isPointer()) {
 728                     attachmentPointers.add(attachment.asPointer());
 729                 }
 730             }
 731
 732             messageBuilder.withAttachments(attachmentPointers);
 733         }
 734         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
 735     }
 736
 737     public Pair<Long, List<SendMessageResult>> sendMessageReaction(String emoji, boolean remove, String targetAuthor,
 738                                                                    long targetSentTimestamp, List<String> recipients)
 739             throws IOException, InvalidNumberException {
 740         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, canonicalizeAndResolveSignalServiceAddress(targetAuthor), targetSentTimestamp);
 741         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 742                 .withReaction(reaction);
 743         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
 744     }
 745
 746     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
 747         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 748                 .asEndSessionMessage();
 749
 750         final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
 751         try {
 752             return sendMessage(messageBuilder, signalServiceAddresses);
 753         } catch (Exception e) {
 754             for (SignalServiceAddress address : signalServiceAddresses) {
 755                 handleEndSession(address);
 756             }
 757             account.save();
 758             throw e;
 759         }
 760     }
 761
 762     public String getContactName(String number) throws InvalidNumberException {
 763         ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));
 764         if (contact == null) {
 765             return "";
 766         } else {
 767             return contact.name;
 768         }
 769     }
 770
 771     public void setContactName(String number, String name) throws InvalidNumberException {
 772         final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 773         ContactInfo contact = account.getContactStore().getContact(address);
 774         if (contact == null) {
 775             contact = new ContactInfo(address);
 776         }
 777         contact.name = name;
 778         account.getContactStore().updateContact(contact);
 779         account.save();
 780     }
 781
 782     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
 783         setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
 784     }
 785
 786     private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
 787         ContactInfo contact = account.getContactStore().getContact(address);
 788         if (contact == null) {
 789             contact = new ContactInfo(address);
 790         }
 791         contact.blocked = blocked;
 792         account.getContactStore().updateContact(contact);
 793         account.save();
 794     }
 795
 796     public void setGroupBlocked(final byte[] groupId, final boolean blocked) throws GroupNotFoundException {
 797         GroupInfo group = getGroup(groupId);
 798         if (group == null) {
 799             throw new GroupNotFoundException(groupId);
 800         }
 801
 802         group.setBlocked(blocked);
 803         account.getGroupStore().updateGroup(group);
 804         account.save();
 805     }
 806
 807     public Pair<byte[], List<SendMessageResult>> updateGroup(byte[] groupId, String name, List<String> members, String avatar) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 808         if (groupId.length == 0) {
 809             groupId = null;
 810         }
 811         if (name.isEmpty()) {
 812             name = null;
 813         }
 814         if (members.isEmpty()) {
 815             members = null;
 816         }
 817         if (avatar.isEmpty()) {
 818             avatar = null;
 819         }
 820         return sendUpdateGroupMessage(groupId, name, members == null ? null : getSignalServiceAddresses(members), avatar);
 821     }
 822
 823     /**
 824      * Change the expiration timer for a contact
 825      */
 826     public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) throws IOException {
 827         ContactInfo contact = account.getContactStore().getContact(address);
 828         contact.messageExpirationTime = messageExpirationTimer;
 829         account.getContactStore().updateContact(contact);
 830         sendExpirationTimerUpdate(address);
 831         account.save();
 832     }
 833
 834     private void sendExpirationTimerUpdate(SignalServiceAddress address) throws IOException {
 835         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 836                 .asExpirationUpdate();
 837         sendMessage(messageBuilder, Collections.singleton(address));
 838     }
 839
 840     /**
 841      * Change the expiration timer for a contact
 842      */
 843     public void setExpirationTimer(String number, int messageExpirationTimer) throws IOException, InvalidNumberException {
 844         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 845         setExpirationTimer(address, messageExpirationTimer);
 846     }
 847
 848     /**
 849      * Change the expiration timer for a group
 850      */
 851     public void setExpirationTimer(byte[] groupId, int messageExpirationTimer) {
 852         GroupInfo g = account.getGroupStore().getGroup(groupId);
 853         if (g instanceof GroupInfoV1) {
 854             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
 855             groupInfoV1.messageExpirationTime = messageExpirationTimer;
 856             account.getGroupStore().updateGroup(groupInfoV1);
 857         } else {
 858             throw new RuntimeException("TODO Not implemented!");
 859         }
 860     }
 861
 862     /**
 863      * Upload the sticker pack from path.
 864      *
 865      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
 866      * @return if successful, returns the URL to install the sticker pack in the signal app
 867      */
 868     public String uploadStickerPack(String path) throws IOException, StickerPackInvalidException {
 869         SignalServiceStickerManifestUpload manifest = getSignalServiceStickerManifestUpload(path);
 870
 871         SignalServiceMessageSender messageSender = getMessageSender();
 872
 873         byte[] packKey = KeyUtils.createStickerUploadKey();
 874         String packId = messageSender.uploadStickerManifest(manifest, packKey);
 875
 876         Sticker sticker = new Sticker(Hex.fromStringCondensed(packId), packKey);
 877         account.getStickerStore().updateSticker(sticker);
 878         account.save();
 879
 880         try {
 881             return new URI("https", "signal.art", "/addstickers/", "pack_id=" + URLEncoder.encode(packId, StandardCharsets.UTF_8) + "&pack_key=" + URLEncoder.encode(Hex.toStringCondensed(packKey), StandardCharsets.UTF_8))
 882                     .toString();
 883         } catch (URISyntaxException e) {
 884             throw new AssertionError(e);
 885         }
 886     }
 887
 888     private SignalServiceStickerManifestUpload getSignalServiceStickerManifestUpload(final String path) throws IOException, StickerPackInvalidException {
 889         ZipFile zip = null;
 890         String rootPath = null;
 891
 892         final File file = new File(path);
 893         if (file.getName().endsWith(".zip")) {
 894             zip = new ZipFile(file);
 895         } else if (file.getName().equals("manifest.json")) {
 896             rootPath = file.getParent();
 897         } else {
 898             throw new StickerPackInvalidException("Could not find manifest.json");
 899         }
 900
 901         JsonStickerPack pack = parseStickerPack(rootPath, zip);
 902
 903         if (pack.stickers == null) {
 904             throw new StickerPackInvalidException("Must set a 'stickers' field.");
 905         }
 906
 907         if (pack.stickers.isEmpty()) {
 908             throw new StickerPackInvalidException("Must include stickers.");
 909         }
 910
 911         List<StickerInfo> stickers = new ArrayList<>(pack.stickers.size());
 912         for (JsonStickerPack.JsonSticker sticker : pack.stickers) {
 913             if (sticker.file == null) {
 914                 throw new StickerPackInvalidException("Must set a 'file' field on each sticker.");
 915             }
 916
 917             Pair<InputStream, Long> data;
 918             try {
 919                 data = getInputStreamAndLength(rootPath, zip, sticker.file);
 920             } catch (IOException ignored) {
 921                 throw new StickerPackInvalidException("Could not find find " + sticker.file);
 922             }
 923
 924             String contentType = Utils.getFileMimeType(new File(sticker.file), null);
 925             StickerInfo stickerInfo = new StickerInfo(data.first(), data.second(), Optional.fromNullable(sticker.emoji).or(""), contentType);
 926             stickers.add(stickerInfo);
 927         }
 928
 929         StickerInfo cover = null;
 930         if (pack.cover != null) {
 931             if (pack.cover.file == null) {
 932                 throw new StickerPackInvalidException("Must set a 'file' field on the cover.");
 933             }
 934
 935             Pair<InputStream, Long> data;
 936             try {
 937                 data = getInputStreamAndLength(rootPath, zip, pack.cover.file);
 938             } catch (IOException ignored) {
 939                 throw new StickerPackInvalidException("Could not find find " + pack.cover.file);
 940             }
 941
 942             String contentType = Utils.getFileMimeType(new File(pack.cover.file), null);
 943             cover = new StickerInfo(data.first(), data.second(), Optional.fromNullable(pack.cover.emoji).or(""), contentType);
 944         }
 945
 946         return new SignalServiceStickerManifestUpload(
 947                 pack.title,
 948                 pack.author,
 949                 cover,
 950                 stickers);
 951     }
 952
 953     private static JsonStickerPack parseStickerPack(String rootPath, ZipFile zip) throws IOException {
 954         InputStream inputStream;
 955         if (zip != null) {
 956             inputStream = zip.getInputStream(zip.getEntry("manifest.json"));
 957         } else {
 958             inputStream = new FileInputStream((new File(rootPath, "manifest.json")));
 959         }
 960         return new ObjectMapper().readValue(inputStream, JsonStickerPack.class);
 961     }
 962
 963     private static Pair<InputStream, Long> getInputStreamAndLength(final String rootPath, final ZipFile zip, final String subfile) throws IOException {
 964         if (zip != null) {
 965             final ZipEntry entry = zip.getEntry(subfile);
 966             return new Pair<>(zip.getInputStream(entry), entry.getSize());
 967         } else {
 968             final File file = new File(rootPath, subfile);
 969             return new Pair<>(new FileInputStream(file), file.length());
 970         }
 971     }
 972
 973     void requestSyncGroups() throws IOException {
 974         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS).build();
 975         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 976         try {
 977             sendSyncMessage(message);
 978         } catch (UntrustedIdentityException e) {
 979             e.printStackTrace();
 980         }
 981     }
 982
 983     void requestSyncContacts() throws IOException {
 984         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS).build();
 985         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 986         try {
 987             sendSyncMessage(message);
 988         } catch (UntrustedIdentityException e) {
 989             e.printStackTrace();
 990         }
 991     }
 992
 993     void requestSyncBlocked() throws IOException {
 994         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED).build();
 995         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 996         try {
 997             sendSyncMessage(message);
 998         } catch (UntrustedIdentityException e) {
 999             e.printStackTrace();
1000         }
1001     }
1002
1003     void requestSyncConfiguration() throws IOException {
1004         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION).build();
1005         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1006         try {
1007             sendSyncMessage(message);
1008         } catch (UntrustedIdentityException e) {
1009             e.printStackTrace();
1010         }
1011     }
1012
1013     private byte[] getSenderCertificate() {
1014         // TODO support UUID capable sender certificates
1015         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1016         byte[] certificate;
1017         try {
1018             certificate = accountManager.getSenderCertificate();
1019         } catch (IOException e) {
1020             System.err.println("Failed to get sender certificate: " + e);
1021             return null;
1022         }
1023         // TODO cache for a day
1024         return certificate;
1025     }
1026
1027     private byte[] getSelfUnidentifiedAccessKey() {
1028         return UnidentifiedAccess.deriveAccessKeyFrom(account.getProfileKey());
1029     }
1030
1031     private byte[] getTargetUnidentifiedAccessKey(SignalServiceAddress recipient) {
1032         ProfileKey theirProfileKey = account.getProfileStore().getProfileKey(recipient);
1033         if (theirProfileKey == null) {
1034             return null;
1035         }
1036         SignalProfile targetProfile;
1037         try {
1038             targetProfile = getRecipientProfile(recipient, Optional.absent(), theirProfileKey);
1039         } catch (IOException e) {
1040             System.err.println("Failed to get recipient profile: " + e);
1041             return null;
1042         }
1043
1044         if (targetProfile == null || targetProfile.getUnidentifiedAccess() == null) {
1045             return null;
1046         }
1047
1048         if (targetProfile.isUnrestrictedUnidentifiedAccess()) {
1049             return KeyUtils.createUnrestrictedUnidentifiedAccess();
1050         }
1051
1052         return UnidentifiedAccess.deriveAccessKeyFrom(theirProfileKey);
1053     }
1054
1055     private Optional<UnidentifiedAccessPair> getAccessForSync() {
1056         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
1057         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
1058
1059         if (selfUnidentifiedAccessKey == null || selfUnidentifiedAccessCertificate == null) {
1060             return Optional.absent();
1061         }
1062
1063         try {
1064             return Optional.of(new UnidentifiedAccessPair(
1065                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate),
1066                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate)
1067             ));
1068         } catch (InvalidCertificateException e) {
1069             return Optional.absent();
1070         }
1071     }
1072
1073     private List<Optional<UnidentifiedAccessPair>> getAccessFor(Collection<SignalServiceAddress> recipients) {
1074         List<Optional<UnidentifiedAccessPair>> result = new ArrayList<>(recipients.size());
1075         for (SignalServiceAddress recipient : recipients) {
1076             result.add(getAccessFor(recipient));
1077         }
1078         return result;
1079     }
1080
1081     private Optional<UnidentifiedAccessPair> getAccessFor(SignalServiceAddress recipient) {
1082         byte[] recipientUnidentifiedAccessKey = getTargetUnidentifiedAccessKey(recipient);
1083         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
1084         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
1085
1086         if (recipientUnidentifiedAccessKey == null || selfUnidentifiedAccessKey == null || selfUnidentifiedAccessCertificate == null) {
1087             return Optional.absent();
1088         }
1089
1090         try {
1091             return Optional.of(new UnidentifiedAccessPair(
1092                     new UnidentifiedAccess(recipientUnidentifiedAccessKey, selfUnidentifiedAccessCertificate),
1093                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate)
1094             ));
1095         } catch (InvalidCertificateException e) {
1096             return Optional.absent();
1097         }
1098     }
1099
1100     private Optional<UnidentifiedAccess> getUnidentifiedAccess(SignalServiceAddress recipient) {
1101         Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
1102
1103         if (unidentifiedAccess.isPresent()) {
1104             return unidentifiedAccess.get().getTargetUnidentifiedAccess();
1105         }
1106
1107         return Optional.absent();
1108     }
1109
1110     private void sendSyncMessage(SignalServiceSyncMessage message)
1111             throws IOException, UntrustedIdentityException {
1112         SignalServiceMessageSender messageSender = getMessageSender();
1113         try {
1114             messageSender.sendMessage(message, getAccessForSync());
1115         } catch (UntrustedIdentityException e) {
1116             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1117             throw e;
1118         }
1119     }
1120
1121     private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1122         final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
1123
1124         for (String number : numbers) {
1125             signalServiceAddresses.add(canonicalizeAndResolveSignalServiceAddress(number));
1126         }
1127         return signalServiceAddresses;
1128     }
1129
1130     private Pair<Long, List<SendMessageResult>> sendMessage(SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients)
1131             throws IOException {
1132         recipients = recipients.stream().map(this::resolveSignalServiceAddress).collect(Collectors.toSet());
1133         final long timestamp = System.currentTimeMillis();
1134         messageBuilder.withTimestamp(timestamp);
1135         if (messagePipe == null) {
1136             messagePipe = getMessageReceiver().createMessagePipe();
1137         }
1138         if (unidentifiedMessagePipe == null) {
1139             unidentifiedMessagePipe = getMessageReceiver().createUnidentifiedMessagePipe();
1140         }
1141         SignalServiceDataMessage message = null;
1142         try {
1143             message = messageBuilder.build();
1144             if (message.getGroupContext().isPresent()) {
1145                 try {
1146                     SignalServiceMessageSender messageSender = getMessageSender();
1147                     final boolean isRecipientUpdate = false;
1148                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients), getAccessFor(recipients), isRecipientUpdate, message);
1149                     for (SendMessageResult r : result) {
1150                         if (r.getIdentityFailure() != null) {
1151                             account.getSignalProtocolStore().saveIdentity(r.getAddress(), r.getIdentityFailure().getIdentityKey(), TrustLevel.UNTRUSTED);
1152                         }
1153                     }
1154                     return new Pair<>(timestamp, result);
1155                 } catch (UntrustedIdentityException e) {
1156                     account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1157                     return new Pair<>(timestamp, Collections.emptyList());
1158                 }
1159             } else {
1160                 // Send to all individually, so sync messages are sent correctly
1161                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1162                 for (SignalServiceAddress address : recipients) {
1163                     ContactInfo contact = account.getContactStore().getContact(address);
1164                     if (contact != null) {
1165                         messageBuilder.withExpiration(contact.messageExpirationTime);
1166                         messageBuilder.withProfileKey(account.getProfileKey().serialize());
1167                     } else {
1168                         messageBuilder.withExpiration(0);
1169                         messageBuilder.withProfileKey(null);
1170                     }
1171                     message = messageBuilder.build();
1172                     if (address.matches(account.getSelfAddress())) {
1173                         results.add(sendSelfMessage(message));
1174                     } else {
1175                         results.add(sendMessage(address, message));
1176                     }
1177                 }
1178                 return new Pair<>(timestamp, results);
1179             }
1180         } finally {
1181             if (message != null && message.isEndSession()) {
1182                 for (SignalServiceAddress recipient : recipients) {
1183                     handleEndSession(recipient);
1184                 }
1185             }
1186             account.save();
1187         }
1188     }
1189
1190     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1191         SignalServiceMessageSender messageSender = getMessageSender();
1192
1193         SignalServiceAddress recipient = account.getSelfAddress();
1194
1195         final Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
1196         SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1197                 message.getTimestamp(),
1198                 message,
1199                 message.getExpiresInSeconds(),
1200                 Collections.singletonMap(recipient, unidentifiedAccess.isPresent()),
1201                 false);
1202         SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1203
1204         try {
1205             long startTime = System.currentTimeMillis();
1206             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1207             return SendMessageResult.success(recipient, unidentifiedAccess.isPresent(), false, System.currentTimeMillis() - startTime);
1208         } catch (UntrustedIdentityException e) {
1209             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1210             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1211         }
1212     }
1213
1214     private SendMessageResult sendMessage(SignalServiceAddress address, SignalServiceDataMessage message) throws IOException {
1215         SignalServiceMessageSender messageSender = getMessageSender();
1216
1217         try {
1218             return messageSender.sendMessage(address, getAccessFor(address), message);
1219         } catch (UntrustedIdentityException e) {
1220             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1221             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1222         }
1223     }
1224
1225     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1226         SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(), account.getSignalProtocolStore(), Utils.getCertificateValidator());
1227         try {
1228             return cipher.decrypt(envelope);
1229         } catch (ProtocolUntrustedIdentityException e) {
1230             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1231                 org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e.getCause();
1232                 account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(identityException.getName()), identityException.getUntrustedIdentity(), TrustLevel.UNTRUSTED);
1233                 throw identityException;
1234             }
1235             throw new AssertionError(e);
1236         }
1237     }
1238
1239     private void handleEndSession(SignalServiceAddress source) {
1240         account.getSignalProtocolStore().deleteAllSessions(source);
1241     }
1242
1243     private static int currentTimeDays() {
1244         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
1245     }
1246
1247     private GroupsV2AuthorizationString getGroupAuthForToday(final GroupSecretParams groupSecretParams) throws IOException, VerificationFailedException {
1248         final int today = currentTimeDays();
1249         // Returns credentials for the next 7 days
1250         final HashMap<Integer, AuthCredentialResponse> credentials = groupsV2Api.getCredentials(today);
1251         // TODO cache credentials until they expire
1252         AuthCredentialResponse authCredentialResponse = credentials.get(today);
1253         return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(), today, groupSecretParams, authCredentialResponse);
1254     }
1255
1256     private List<HandleAction> handleSignalServiceDataMessage(SignalServiceDataMessage message, boolean isSync, SignalServiceAddress source, SignalServiceAddress destination, boolean ignoreAttachments) {
1257         List<HandleAction> actions = new ArrayList<>();
1258         if (message.getGroupContext().isPresent()) {
1259             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1260                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1261                 GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
1262                 if (group == null || group instanceof GroupInfoV1) {
1263                     GroupInfoV1 groupV1 = (GroupInfoV1) group;
1264                     switch (groupInfo.getType()) {
1265                         case UPDATE: {
1266                             if (groupV1 == null) {
1267                                 groupV1 = new GroupInfoV1(groupInfo.getGroupId());
1268                             }
1269
1270                             if (groupInfo.getAvatar().isPresent()) {
1271                                 SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1272                                 if (avatar.isPointer()) {
1273                                     try {
1274                                         retrieveGroupAvatarAttachment(avatar.asPointer(), groupV1.groupId);
1275                                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1276                                         System.err.println("Failed to retrieve group avatar (" + avatar.asPointer().getRemoteId() + "): " + e.getMessage());
1277                                     }
1278                                 }
1279                             }
1280
1281                             if (groupInfo.getName().isPresent()) {
1282                                 groupV1.name = groupInfo.getName().get();
1283                             }
1284
1285                             if (groupInfo.getMembers().isPresent()) {
1286                                 groupV1.addMembers(groupInfo.getMembers().get()
1287                                         .stream()
1288                                         .map(this::resolveSignalServiceAddress)
1289                                         .collect(Collectors.toSet()));
1290                             }
1291
1292                             account.getGroupStore().updateGroup(groupV1);
1293                             break;
1294                         }
1295                         case DELIVER:
1296                             if (groupV1 == null && !isSync) {
1297                                 actions.add(new SendGroupInfoRequestAction(source, groupInfo.getGroupId()));
1298                             }
1299                             break;
1300                         case QUIT: {
1301                             if (groupV1 != null) {
1302                                 groupV1.removeMember(source);
1303                                 account.getGroupStore().updateGroup(groupV1);
1304                             }
1305                             break;
1306                         }
1307                         case REQUEST_INFO:
1308                             if (groupV1 != null && !isSync) {
1309                                 actions.add(new SendGroupUpdateAction(source, groupV1.groupId));
1310                             }
1311                             break;
1312                     }
1313                 } else {
1314                     System.err.println("Received a group v1 message for a v2 group: " + group.getTitle());
1315                 }
1316             }
1317             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1318                 final SignalServiceGroupV2 groupContext = message.getGroupContext().get().getGroupV2().get();
1319                 final GroupMasterKey groupMasterKey = groupContext.getMasterKey();
1320
1321                 final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1322
1323                 byte[] groupId = groupSecretParams.getPublicParams().getGroupIdentifier().serialize();
1324                 GroupInfo groupInfo = account.getGroupStore().getGroup(groupId);
1325                 if (groupInfo instanceof GroupInfoV1) {
1326                     // TODO upgrade group
1327                 } else if (groupInfo == null || groupInfo instanceof GroupInfoV2) {
1328                     GroupInfoV2 groupInfoV2 = groupInfo == null
1329                             ? new GroupInfoV2(groupId, groupMasterKey)
1330                             : (GroupInfoV2) groupInfo;
1331
1332                     if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < groupContext.getRevision()) {
1333                         // TODO check if revision is only 1 behind and a signedGroupChange is available
1334                         try {
1335                             final GroupsV2AuthorizationString groupsV2AuthorizationString = getGroupAuthForToday(groupSecretParams);
1336                             final DecryptedGroup group = groupsV2Api.getGroup(groupSecretParams, groupsV2AuthorizationString);
1337                             groupInfoV2.setGroup(group);
1338                             for (DecryptedMember member : group.getMembersList()) {
1339                                 final SignalServiceAddress address = resolveSignalServiceAddress(new SignalServiceAddress(UuidUtil.parseOrThrow(member.getUuid().toByteArray()), null));
1340                                 try {
1341                                     account.getProfileStore().storeProfileKey(address, new ProfileKey(member.getProfileKey().toByteArray()));
1342                                 } catch (InvalidInputException ignored) {
1343                                 }
1344                             }
1345                         } catch (IOException | VerificationFailedException | InvalidGroupStateException e) {
1346                             System.err.println("Failed to retrieve Group V2 info, ignoring ...");
1347                         }
1348                         account.getGroupStore().updateGroup(groupInfoV2);
1349                     }
1350                 }
1351             }
1352         }
1353         final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;
1354         if (message.isEndSession()) {
1355             handleEndSession(conversationPartnerAddress);
1356         }
1357         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1358             if (message.getGroupContext().isPresent()) {
1359                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1360                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1361                     GroupInfoV1 group = account.getGroupStore().getOrCreateGroupV1(groupInfo.getGroupId());
1362                     if (group != null) {
1363                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1364                             group.messageExpirationTime = message.getExpiresInSeconds();
1365                             account.getGroupStore().updateGroup(group);
1366                         }
1367                     }
1368                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1369                     // disappearing message timer already stored in the DecryptedGroup
1370                 }
1371             } else {
1372                 ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
1373                 if (contact == null) {
1374                     contact = new ContactInfo(conversationPartnerAddress);
1375                 }
1376                 if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
1377                     contact.messageExpirationTime = message.getExpiresInSeconds();
1378                     account.getContactStore().updateContact(contact);
1379                 }
1380             }
1381         }
1382         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1383             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1384                 if (attachment.isPointer()) {
1385                     try {
1386                         retrieveAttachment(attachment.asPointer());
1387                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1388                         System.err.println("Failed to retrieve attachment (" + attachment.asPointer().getRemoteId() + "): " + e.getMessage());
1389                     }
1390                 }
1391             }
1392         }
1393         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1394             final ProfileKey profileKey;
1395             try {
1396                 profileKey = new ProfileKey(message.getProfileKey().get());
1397             } catch (InvalidInputException e) {
1398                 throw new AssertionError(e);
1399             }
1400             if (source.matches(account.getSelfAddress())) {
1401                 this.account.setProfileKey(profileKey);
1402             }
1403             this.account.getProfileStore().storeProfileKey(source, profileKey);
1404         }
1405         if (message.getPreviews().isPresent()) {
1406             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1407             for (SignalServiceDataMessage.Preview preview : previews) {
1408                 if (preview.getImage().isPresent() && preview.getImage().get().isPointer()) {
1409                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
1410                     try {
1411                         retrieveAttachment(attachment);
1412                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1413                         System.err.println("Failed to retrieve attachment (" + attachment.getRemoteId() + "): " + e.getMessage());
1414                     }
1415                 }
1416             }
1417         }
1418         if (message.getSticker().isPresent()) {
1419             final SignalServiceDataMessage.Sticker messageSticker = message.getSticker().get();
1420             Sticker sticker = account.getStickerStore().getSticker(messageSticker.getPackId());
1421             if (sticker == null) {
1422                 sticker = new Sticker(messageSticker.getPackId(), messageSticker.getPackKey());
1423                 account.getStickerStore().updateSticker(sticker);
1424             }
1425         }
1426         return actions;
1427     }
1428
1429     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1430         final File cachePath = new File(getMessageCachePath());
1431         if (!cachePath.exists()) {
1432             return;
1433         }
1434         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
1435             if (!dir.isDirectory()) {
1436                 retryFailedReceivedMessage(handler, ignoreAttachments, dir);
1437                 continue;
1438             }
1439
1440             for (final File fileEntry : Objects.requireNonNull(dir.listFiles())) {
1441                 if (!fileEntry.isFile()) {
1442                     continue;
1443                 }
1444                 retryFailedReceivedMessage(handler, ignoreAttachments, fileEntry);
1445             }
1446             // Try to delete directory if empty
1447             dir.delete();
1448         }
1449     }
1450
1451     private void retryFailedReceivedMessage(final ReceiveMessageHandler handler, final boolean ignoreAttachments, final File fileEntry) {
1452         SignalServiceEnvelope envelope;
1453         try {
1454             envelope = Utils.loadEnvelope(fileEntry);
1455             if (envelope == null) {
1456                 return;
1457             }
1458         } catch (IOException e) {
1459             e.printStackTrace();
1460             return;
1461         }
1462         SignalServiceContent content = null;
1463         if (!envelope.isReceipt()) {
1464             try {
1465                 content = decryptMessage(envelope);
1466             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1467                 return;
1468             } catch (Exception er) {
1469                 // All other errors are not recoverable, so delete the cached message
1470                 try {
1471                     Files.delete(fileEntry.toPath());
1472                 } catch (IOException e) {
1473                     System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1474                 }
1475                 return;
1476             }
1477             List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1478             for (HandleAction action : actions) {
1479                 try {
1480                     action.execute(this);
1481                 } catch (Throwable e) {
1482                     e.printStackTrace();
1483                 }
1484             }
1485         }
1486         account.save();
1487         handler.handleMessage(envelope, content, null);
1488         try {
1489             Files.delete(fileEntry.toPath());
1490         } catch (IOException e) {
1491             System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1492         }
1493     }
1494
1495     public void receiveMessages(long timeout, TimeUnit unit, boolean returnOnTimeout, boolean ignoreAttachments, ReceiveMessageHandler handler) throws IOException {
1496         retryFailedReceivedMessages(handler, ignoreAttachments);
1497         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1498
1499         Set<HandleAction> queuedActions = null;
1500
1501         if (messagePipe == null) {
1502             messagePipe = messageReceiver.createMessagePipe();
1503         }
1504
1505         boolean hasCaughtUpWithOldMessages = false;
1506
1507         while (true) {
1508             SignalServiceEnvelope envelope;
1509             SignalServiceContent content = null;
1510             Exception exception = null;
1511             final long now = new Date().getTime();
1512             try {
1513                 Optional<SignalServiceEnvelope> result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1514                     // store message on disk, before acknowledging receipt to the server
1515                     try {
1516                         String source = envelope1.getSourceE164().isPresent() ? envelope1.getSourceE164().get() : "";
1517                         File cacheFile = getMessageCacheFile(source, now, envelope1.getTimestamp());
1518                         Utils.storeEnvelope(envelope1, cacheFile);
1519                     } catch (IOException e) {
1520                         System.err.println("Failed to store encrypted message in disk cache, ignoring: " + e.getMessage());
1521                     }
1522                 });
1523                 if (result.isPresent()) {
1524                     envelope = result.get();
1525                 } else {
1526                     // Received indicator that server queue is empty
1527                     hasCaughtUpWithOldMessages = true;
1528
1529                     if (queuedActions != null) {
1530                         for (HandleAction action : queuedActions) {
1531                             try {
1532                                 action.execute(this);
1533                             } catch (Throwable e) {
1534                                 e.printStackTrace();
1535                             }
1536                         }
1537                         account.save();
1538                         queuedActions.clear();
1539                         queuedActions = null;
1540                     }
1541
1542                     // Continue to wait another timeout for new messages
1543                     continue;
1544                 }
1545             } catch (TimeoutException e) {
1546                 if (returnOnTimeout)
1547                     return;
1548                 continue;
1549             } catch (InvalidVersionException e) {
1550                 System.err.println("Ignoring error: " + e.getMessage());
1551                 continue;
1552             }
1553
1554             if (envelope.hasSource()) {
1555                 // Store uuid if we don't have it already
1556                 SignalServiceAddress source = envelope.getSourceAddress();
1557                 resolveSignalServiceAddress(source);
1558             }
1559             if (!envelope.isReceipt()) {
1560                 try {
1561                     content = decryptMessage(envelope);
1562                 } catch (Exception e) {
1563                     exception = e;
1564                 }
1565                 List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1566                 if (hasCaughtUpWithOldMessages) {
1567                     for (HandleAction action : actions) {
1568                         try {
1569                             action.execute(this);
1570                         } catch (Throwable e) {
1571                             e.printStackTrace();
1572                         }
1573                     }
1574                 } else {
1575                     if (queuedActions == null) {
1576                         queuedActions = new HashSet<>();
1577                     }
1578                     queuedActions.addAll(actions);
1579                 }
1580             }
1581             account.save();
1582             if (!isMessageBlocked(envelope, content)) {
1583                 handler.handleMessage(envelope, content, exception);
1584             }
1585             if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
1586                 File cacheFile = null;
1587                 try {
1588                     String source = envelope.getSourceE164().isPresent() ? envelope.getSourceE164().get() : "";
1589                     cacheFile = getMessageCacheFile(source, now, envelope.getTimestamp());
1590                     Files.delete(cacheFile.toPath());
1591                     // Try to delete directory if empty
1592                     new File(getMessageCachePath()).delete();
1593                 } catch (IOException e) {
1594                     System.err.println("Failed to delete cached message file “" + cacheFile + "”: " + e.getMessage());
1595                 }
1596             }
1597         }
1598     }
1599
1600     private boolean isMessageBlocked(SignalServiceEnvelope envelope, SignalServiceContent content) {
1601         SignalServiceAddress source;
1602         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1603             source = envelope.getSourceAddress();
1604         } else if (content != null) {
1605             source = content.getSender();
1606         } else {
1607             return false;
1608         }
1609         ContactInfo sourceContact = account.getContactStore().getContact(source);
1610         if (sourceContact != null && sourceContact.blocked) {
1611             return true;
1612         }
1613
1614         if (content != null && content.getDataMessage().isPresent()) {
1615             SignalServiceDataMessage message = content.getDataMessage().get();
1616             if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1617                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1618                 GroupInfo group = getGroup(groupInfo.getGroupId());
1619                 return groupInfo.getType() == SignalServiceGroup.Type.DELIVER && group != null && group.isBlocked();
1620             }
1621         }
1622         return false;
1623     }
1624
1625     private List<HandleAction> handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments) {
1626         List<HandleAction> actions = new ArrayList<>();
1627         if (content != null) {
1628             SignalServiceAddress sender;
1629             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1630                 sender = envelope.getSourceAddress();
1631             } else {
1632                 sender = content.getSender();
1633             }
1634             // Store uuid if we don't have it already
1635             resolveSignalServiceAddress(sender);
1636
1637             if (content.getDataMessage().isPresent()) {
1638                 SignalServiceDataMessage message = content.getDataMessage().get();
1639
1640                 if (content.isNeedsReceipt()) {
1641                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1642                 }
1643
1644                 actions.addAll(handleSignalServiceDataMessage(message, false, sender, account.getSelfAddress(), ignoreAttachments));
1645             }
1646             if (content.getSyncMessage().isPresent()) {
1647                 account.setMultiDevice(true);
1648                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1649                 if (syncMessage.getSent().isPresent()) {
1650                     SentTranscriptMessage message = syncMessage.getSent().get();
1651                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(), true, sender, message.getDestination().orNull(), ignoreAttachments));
1652                 }
1653                 if (syncMessage.getRequest().isPresent()) {
1654                     RequestMessage rm = syncMessage.getRequest().get();
1655                     if (rm.isContactsRequest()) {
1656                         actions.add(SendSyncContactsAction.create());
1657                     }
1658                     if (rm.isGroupsRequest()) {
1659                         actions.add(SendSyncGroupsAction.create());
1660                     }
1661                     if (rm.isBlockedListRequest()) {
1662                         actions.add(SendSyncBlockedListAction.create());
1663                     }
1664                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
1665                 }
1666                 if (syncMessage.getGroups().isPresent()) {
1667                     File tmpFile = null;
1668                     try {
1669                         tmpFile = IOUtils.createTempFile();
1670                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups().get().asPointer(), tmpFile)) {
1671                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1672                             DeviceGroup g;
1673                             while ((g = s.read()) != null) {
1674                                 GroupInfoV1 syncGroup = account.getGroupStore().getOrCreateGroupV1(g.getId());
1675                                 if (syncGroup != null) {
1676                                     if (g.getName().isPresent()) {
1677                                         syncGroup.name = g.getName().get();
1678                                     }
1679                                     syncGroup.addMembers(g.getMembers()
1680                                             .stream()
1681                                             .map(this::resolveSignalServiceAddress)
1682                                             .collect(Collectors.toSet()));
1683                                     if (!g.isActive()) {
1684                                         syncGroup.removeMember(account.getSelfAddress());
1685                                     } else {
1686                                         // Add ourself to the member set as it's marked as active
1687                                         syncGroup.addMembers(Collections.singleton(account.getSelfAddress()));
1688                                     }
1689                                     syncGroup.blocked = g.isBlocked();
1690                                     if (g.getColor().isPresent()) {
1691                                         syncGroup.color = g.getColor().get();
1692                                     }
1693
1694                                     if (g.getAvatar().isPresent()) {
1695                                         retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId);
1696                                     }
1697                                     syncGroup.inboxPosition = g.getInboxPosition().orNull();
1698                                     syncGroup.archived = g.isArchived();
1699                                     account.getGroupStore().updateGroup(syncGroup);
1700                                 }
1701                             }
1702                         }
1703                     } catch (Exception e) {
1704                         e.printStackTrace();
1705                     } finally {
1706                         if (tmpFile != null) {
1707                             try {
1708                                 Files.delete(tmpFile.toPath());
1709                             } catch (IOException e) {
1710                                 System.err.println("Failed to delete received groups temp file “" + tmpFile + "”: " + e.getMessage());
1711                             }
1712                         }
1713                     }
1714                 }
1715                 if (syncMessage.getBlockedList().isPresent()) {
1716                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1717                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1718                         setContactBlocked(resolveSignalServiceAddress(address), true);
1719                     }
1720                     for (byte[] groupId : blockedListMessage.getGroupIds()) {
1721                         try {
1722                             setGroupBlocked(groupId, true);
1723                         } catch (GroupNotFoundException e) {
1724                             System.err.println("BlockedListMessage contained groupID that was not found in GroupStore: " + Base64.encodeBytes(groupId));
1725                         }
1726                     }
1727                 }
1728                 if (syncMessage.getContacts().isPresent()) {
1729                     File tmpFile = null;
1730                     try {
1731                         tmpFile = IOUtils.createTempFile();
1732                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1733                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream().asPointer(), tmpFile)) {
1734                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1735                             if (contactsMessage.isComplete()) {
1736                                 account.getContactStore().clear();
1737                             }
1738                             DeviceContact c;
1739                             while ((c = s.read()) != null) {
1740                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
1741                                     account.setProfileKey(c.getProfileKey().get());
1742                                 }
1743                                 final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
1744                                 ContactInfo contact = account.getContactStore().getContact(address);
1745                                 if (contact == null) {
1746                                     contact = new ContactInfo(address);
1747                                 }
1748                                 if (c.getName().isPresent()) {
1749                                     contact.name = c.getName().get();
1750                                 }
1751                                 if (c.getColor().isPresent()) {
1752                                     contact.color = c.getColor().get();
1753                                 }
1754                                 if (c.getProfileKey().isPresent()) {
1755                                     account.getProfileStore().storeProfileKey(address, c.getProfileKey().get());
1756                                 }
1757                                 if (c.getVerified().isPresent()) {
1758                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
1759                                     account.getSignalProtocolStore().setIdentityTrustLevel(verifiedMessage.getDestination(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1760                                 }
1761                                 if (c.getExpirationTimer().isPresent()) {
1762                                     contact.messageExpirationTime = c.getExpirationTimer().get();
1763                                 }
1764                                 contact.blocked = c.isBlocked();
1765                                 contact.inboxPosition = c.getInboxPosition().orNull();
1766                                 contact.archived = c.isArchived();
1767                                 account.getContactStore().updateContact(contact);
1768
1769                                 if (c.getAvatar().isPresent()) {
1770                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
1771                                 }
1772                             }
1773                         }
1774                     } catch (Exception e) {
1775                         e.printStackTrace();
1776                     } finally {
1777                         if (tmpFile != null) {
1778                             try {
1779                                 Files.delete(tmpFile.toPath());
1780                             } catch (IOException e) {
1781                                 System.err.println("Failed to delete received contacts temp file “" + tmpFile + "”: " + e.getMessage());
1782                             }
1783                         }
1784                     }
1785                 }
1786                 if (syncMessage.getVerified().isPresent()) {
1787                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
1788                     account.getSignalProtocolStore().setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1789                 }
1790                 if (syncMessage.getStickerPackOperations().isPresent()) {
1791                     final List<StickerPackOperationMessage> stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
1792                     for (StickerPackOperationMessage m : stickerPackOperationMessages) {
1793                         if (!m.getPackId().isPresent()) {
1794                             continue;
1795                         }
1796                         Sticker sticker = account.getStickerStore().getSticker(m.getPackId().get());
1797                         if (sticker == null) {
1798                             if (!m.getPackKey().isPresent()) {
1799                                 continue;
1800                             }
1801                             sticker = new Sticker(m.getPackId().get(), m.getPackKey().get());
1802                         }
1803                         sticker.setInstalled(!m.getType().isPresent() || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
1804                         account.getStickerStore().updateSticker(sticker);
1805                     }
1806                 }
1807                 if (syncMessage.getConfiguration().isPresent()) {
1808                     // TODO
1809                 }
1810             }
1811         }
1812         return actions;
1813     }
1814
1815     private File getContactAvatarFile(String number) {
1816         return new File(pathConfig.getAvatarsPath(), "contact-" + number);
1817     }
1818
1819     private File retrieveContactAvatarAttachment(SignalServiceAttachment attachment, String number) throws IOException, InvalidMessageException, MissingConfigurationException {
1820         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1821         if (attachment.isPointer()) {
1822             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1823             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
1824         } else {
1825             SignalServiceAttachmentStream stream = attachment.asStream();
1826             return Utils.retrieveAttachment(stream, getContactAvatarFile(number));
1827         }
1828     }
1829
1830     private File getGroupAvatarFile(byte[] groupId) {
1831         return new File(pathConfig.getAvatarsPath(), "group-" + Base64.encodeBytes(groupId).replace("/", "_"));
1832     }
1833
1834     private File retrieveGroupAvatarAttachment(SignalServiceAttachment attachment, byte[] groupId) throws IOException, InvalidMessageException, MissingConfigurationException {
1835         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1836         if (attachment.isPointer()) {
1837             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1838             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
1839         } else {
1840             SignalServiceAttachmentStream stream = attachment.asStream();
1841             return Utils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
1842         }
1843     }
1844
1845     private File getProfileAvatarFile(SignalServiceAddress address) {
1846         return new File(pathConfig.getAvatarsPath(), "profile-" + address.getLegacyIdentifier());
1847     }
1848
1849     private File retrieveProfileAvatar(SignalServiceAddress address, String avatarPath, ProfileKey profileKey) throws IOException {
1850         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1851         SignalServiceMessageReceiver receiver = getMessageReceiver();
1852         File outputFile = getProfileAvatarFile(address);
1853
1854         File tmpFile = IOUtils.createTempFile();
1855         try (InputStream input = receiver.retrieveProfileAvatar(avatarPath, tmpFile, profileKey, ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
1856             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
1857             IOUtils.copyStreamToFile(input, outputFile, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
1858         } finally {
1859             try {
1860                 Files.delete(tmpFile.toPath());
1861             } catch (IOException e) {
1862                 System.err.println("Failed to delete received avatar temp file “" + tmpFile + "”: " + e.getMessage());
1863             }
1864         }
1865         return outputFile;
1866     }
1867
1868     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
1869         return new File(pathConfig.getAttachmentsPath(), attachmentId.toString());
1870     }
1871
1872     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException, MissingConfigurationException {
1873         IOUtils.createPrivateDirectories(pathConfig.getAttachmentsPath());
1874         return retrieveAttachment(pointer, getAttachmentFile(pointer.getRemoteId()), true);
1875     }
1876
1877     private File retrieveAttachment(SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview) throws IOException, InvalidMessageException, MissingConfigurationException {
1878         if (storePreview && pointer.getPreview().isPresent()) {
1879             File previewFile = new File(outputFile + ".preview");
1880             try (OutputStream output = new FileOutputStream(previewFile)) {
1881                 byte[] preview = pointer.getPreview().get();
1882                 output.write(preview, 0, preview.length);
1883             } catch (FileNotFoundException e) {
1884                 e.printStackTrace();
1885                 return null;
1886             }
1887         }
1888
1889         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1890
1891         File tmpFile = IOUtils.createTempFile();
1892         try (InputStream input = messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE)) {
1893             IOUtils.copyStreamToFile(input, outputFile);
1894         } finally {
1895             try {
1896                 Files.delete(tmpFile.toPath());
1897             } catch (IOException e) {
1898                 System.err.println("Failed to delete received attachment temp file “" + tmpFile + "”: " + e.getMessage());
1899             }
1900         }
1901         return outputFile;
1902     }
1903
1904     private InputStream retrieveAttachmentAsStream(SignalServiceAttachmentPointer pointer, File tmpFile) throws IOException, InvalidMessageException, MissingConfigurationException {
1905         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1906         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
1907     }
1908
1909     void sendGroups() throws IOException, UntrustedIdentityException {
1910         File groupsFile = IOUtils.createTempFile();
1911
1912         try {
1913             try (OutputStream fos = new FileOutputStream(groupsFile)) {
1914                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
1915                 for (GroupInfo record : account.getGroupStore().getGroups()) {
1916                     if (record instanceof GroupInfoV1) {
1917                         GroupInfoV1 groupInfo = (GroupInfoV1) record;
1918                         out.write(new DeviceGroup(groupInfo.groupId, Optional.fromNullable(groupInfo.name),
1919                                 new ArrayList<>(groupInfo.getMembers()), createGroupAvatarAttachment(groupInfo.groupId),
1920                                 groupInfo.isMember(account.getSelfAddress()), Optional.of(groupInfo.messageExpirationTime),
1921                                 Optional.fromNullable(groupInfo.color), groupInfo.blocked, Optional.fromNullable(groupInfo.inboxPosition), groupInfo.archived));
1922                     }
1923                 }
1924             }
1925
1926             if (groupsFile.exists() && groupsFile.length() > 0) {
1927                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
1928                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1929                             .withStream(groupsFileStream)
1930                             .withContentType("application/octet-stream")
1931                             .withLength(groupsFile.length())
1932                             .build();
1933
1934                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
1935                 }
1936             }
1937         } finally {
1938             try {
1939                 Files.delete(groupsFile.toPath());
1940             } catch (IOException e) {
1941                 System.err.println("Failed to delete groups temp file “" + groupsFile + "”: " + e.getMessage());
1942             }
1943         }
1944     }
1945
1946     public void sendContacts() throws IOException, UntrustedIdentityException {
1947         File contactsFile = IOUtils.createTempFile();
1948
1949         try {
1950             try (OutputStream fos = new FileOutputStream(contactsFile)) {
1951                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
1952                 for (ContactInfo record : account.getContactStore().getContacts()) {
1953                     VerifiedMessage verifiedMessage = null;
1954                     JsonIdentityKeyStore.Identity currentIdentity = account.getSignalProtocolStore().getIdentity(record.getAddress());
1955                     if (currentIdentity != null) {
1956                         verifiedMessage = new VerifiedMessage(record.getAddress(), currentIdentity.getIdentityKey(), currentIdentity.getTrustLevel().toVerifiedState(), currentIdentity.getDateAdded().getTime());
1957                     }
1958
1959                     ProfileKey profileKey = account.getProfileStore().getProfileKey(record.getAddress());
1960                     out.write(new DeviceContact(record.getAddress(), Optional.fromNullable(record.name),
1961                             createContactAvatarAttachment(record.number), Optional.fromNullable(record.color),
1962                             Optional.fromNullable(verifiedMessage), Optional.fromNullable(profileKey), record.blocked,
1963                             Optional.of(record.messageExpirationTime),
1964                             Optional.fromNullable(record.inboxPosition), record.archived));
1965                 }
1966
1967                 if (account.getProfileKey() != null) {
1968                     // Send our own profile key as well
1969                     out.write(new DeviceContact(account.getSelfAddress(),
1970                             Optional.absent(), Optional.absent(),
1971                             Optional.absent(), Optional.absent(),
1972                             Optional.of(account.getProfileKey()),
1973                             false, Optional.absent(), Optional.absent(), false));
1974                 }
1975             }
1976
1977             if (contactsFile.exists() && contactsFile.length() > 0) {
1978                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
1979                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1980                             .withStream(contactsFileStream)
1981                             .withContentType("application/octet-stream")
1982                             .withLength(contactsFile.length())
1983                             .build();
1984
1985                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
1986                 }
1987             }
1988         } finally {
1989             try {
1990                 Files.delete(contactsFile.toPath());
1991             } catch (IOException e) {
1992                 System.err.println("Failed to delete contacts temp file “" + contactsFile + "”: " + e.getMessage());
1993             }
1994         }
1995     }
1996
1997     void sendBlockedList() throws IOException, UntrustedIdentityException {
1998         List<SignalServiceAddress> addresses = new ArrayList<>();
1999         for (ContactInfo record : account.getContactStore().getContacts()) {
2000             if (record.blocked) {
2001                 addresses.add(record.getAddress());
2002             }
2003         }
2004         List<byte[]> groupIds = new ArrayList<>();
2005         for (GroupInfo record : account.getGroupStore().getGroups()) {
2006             if (record.isBlocked()) {
2007                 groupIds.add(record.groupId);
2008             }
2009         }
2010         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2011     }
2012
2013     private void sendVerifiedMessage(SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel) throws IOException, UntrustedIdentityException {
2014         VerifiedMessage verifiedMessage = new VerifiedMessage(destination, identityKey, trustLevel.toVerifiedState(), System.currentTimeMillis());
2015         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2016     }
2017
2018     public List<ContactInfo> getContacts() {
2019         return account.getContactStore().getContacts();
2020     }
2021
2022     public ContactInfo getContact(String number) {
2023         return account.getContactStore().getContact(Util.getSignalServiceAddressFromIdentifier(number));
2024     }
2025
2026     public GroupInfo getGroup(byte[] groupId) {
2027         return account.getGroupStore().getGroup(groupId);
2028     }
2029
2030     public byte[] getGroupId(GroupMasterKey groupMasterKey) {
2031         final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
2032         return groupSecretParams.getPublicParams().getGroupIdentifier().serialize();
2033     }
2034
2035     public List<JsonIdentityKeyStore.Identity> getIdentities() {
2036         return account.getSignalProtocolStore().getIdentities();
2037     }
2038
2039     public List<JsonIdentityKeyStore.Identity> getIdentities(String number) throws InvalidNumberException {
2040         return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));
2041     }
2042
2043     /**
2044      * Trust this the identity with this fingerprint
2045      *
2046      * @param name        username of the identity
2047      * @param fingerprint Fingerprint
2048      */
2049     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2050         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2051         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2052         if (ids == null) {
2053             return false;
2054         }
2055         for (JsonIdentityKeyStore.Identity id : ids) {
2056             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
2057                 continue;
2058             }
2059
2060             account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2061             try {
2062                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2063             } catch (IOException | UntrustedIdentityException e) {
2064                 e.printStackTrace();
2065             }
2066             account.save();
2067             return true;
2068         }
2069         return false;
2070     }
2071
2072     /**
2073      * Trust this the identity with this safety number
2074      *
2075      * @param name         username of the identity
2076      * @param safetyNumber Safety number
2077      */
2078     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2079         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2080         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2081         if (ids == null) {
2082             return false;
2083         }
2084         for (JsonIdentityKeyStore.Identity id : ids) {
2085             if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {
2086                 continue;
2087             }
2088
2089             account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2090             try {
2091                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2092             } catch (IOException | UntrustedIdentityException e) {
2093                 e.printStackTrace();
2094             }
2095             account.save();
2096             return true;
2097         }
2098         return false;
2099     }
2100
2101     /**
2102      * Trust all keys of this identity without verification
2103      *
2104      * @param name username of the identity
2105      */
2106     public boolean trustIdentityAllKeys(String name) {
2107         SignalServiceAddress address = resolveSignalServiceAddress(name);
2108         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2109         if (ids == null) {
2110             return false;
2111         }
2112         for (JsonIdentityKeyStore.Identity id : ids) {
2113             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2114                 account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2115                 try {
2116                     sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2117                 } catch (IOException | UntrustedIdentityException e) {
2118                     e.printStackTrace();
2119                 }
2120             }
2121         }
2122         account.save();
2123         return true;
2124     }
2125
2126     public String computeSafetyNumber(SignalServiceAddress theirAddress, IdentityKey theirIdentityKey) {
2127         return Utils.computeSafetyNumber(account.getSelfAddress(), getIdentityKeyPair().getPublicKey(), theirAddress, theirIdentityKey);
2128     }
2129
2130     void saveAccount() {
2131         account.save();
2132     }
2133
2134     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2135         String canonicalizedNumber = UuidUtil.isUuid(identifier) ? identifier : Util.canonicalizeNumber(identifier, account.getUsername());
2136         return resolveSignalServiceAddress(canonicalizedNumber);
2137     }
2138
2139     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2140         SignalServiceAddress address = Util.getSignalServiceAddressFromIdentifier(identifier);
2141
2142         return resolveSignalServiceAddress(address);
2143     }
2144
2145     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2146         if (address.matches(account.getSelfAddress())) {
2147             return account.getSelfAddress();
2148         }
2149
2150         return account.getRecipientStore().resolveServiceAddress(address);
2151     }
2152
2153     @Override
2154     public void close() throws IOException {
2155         if (messagePipe != null) {
2156             messagePipe.shutdown();
2157             messagePipe = null;
2158         }
2159
2160         if (unidentifiedMessagePipe != null) {
2161             unidentifiedMessagePipe.shutdown();
2162             unidentifiedMessagePipe = null;
2163         }
2164
2165         account.close();
2166     }
2167
2168     public interface ReceiveMessageHandler {
2169
2170         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2171     }
2172 }