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         if (m.isRegistered()) {
 254             m.updateAccountAttributes();
 255         }
 256
 257         return m;
 258     }
 259
 260     private void migrateLegacyConfigs() {
 261         if (account.getProfileKey() == null && isRegistered()) {
 262             // Old config file, creating new profile key
 263             account.setProfileKey(KeyUtils.createProfileKey());
 264             account.save();
 265         }
 266         // Store profile keys only in profile store
 267         for (ContactInfo contact : account.getContactStore().getContacts()) {
 268             String profileKeyString = contact.profileKey;
 269             if (profileKeyString == null) {
 270                 continue;
 271             }
 272             final ProfileKey profileKey;
 273             try {
 274                 profileKey = new ProfileKey(Base64.decode(profileKeyString));
 275             } catch (InvalidInputException | IOException e) {
 276                 continue;
 277             }
 278             contact.profileKey = null;
 279             account.getProfileStore().storeProfileKey(contact.getAddress(), profileKey);
 280         }
 281     }
 282
 283     public void checkAccountState() throws IOException {
 284         if (account.isRegistered()) {
 285             if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 286                 refreshPreKeys();
 287                 account.save();
 288             }
 289             if (account.getUuid() == null) {
 290                 account.setUuid(accountManager.getOwnUuid());
 291                 account.save();
 292             }
 293         }
 294     }
 295
 296     public boolean isRegistered() {
 297         return account.isRegistered();
 298     }
 299
 300     public void register(boolean voiceVerification, String captcha) throws IOException {
 301         account.setPassword(KeyUtils.createPassword());
 302
 303         // Resetting UUID, because registering doesn't work otherwise
 304         account.setUuid(null);
 305         accountManager = createSignalServiceAccountManager();
 306         this.groupsV2Api = accountManager.getGroupsV2Api();
 307
 308         if (voiceVerification) {
 309             accountManager.requestVoiceVerificationCode(Locale.getDefault(), Optional.fromNullable(captcha), Optional.absent());
 310         } else {
 311             accountManager.requestSmsVerificationCode(false, Optional.fromNullable(captcha), Optional.absent());
 312         }
 313
 314         account.setRegistered(false);
 315         account.save();
 316     }
 317
 318     public void updateAccountAttributes() throws IOException {
 319         accountManager.setAccountAttributes(account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, account.getRegistrationLockPin(), account.getRegistrationLock(), getSelfUnidentifiedAccessKey(), false, capabilities, discoverableByPhoneNumber);
 320     }
 321
 322     public void setProfile(String name, File avatar) throws IOException {
 323         try (final StreamDetails streamDetails = avatar == null ? null : Utils.createStreamDetailsFromFile(avatar)) {
 324             accountManager.setVersionedProfile(account.getUuid(), account.getProfileKey(), name, streamDetails);
 325         }
 326     }
 327
 328     public void unregister() throws IOException {
 329         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 330         // If this is the master device, other users can't send messages to this number anymore.
 331         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 332         accountManager.setGcmId(Optional.absent());
 333
 334         account.setRegistered(false);
 335         account.save();
 336     }
 337
 338     public List<DeviceInfo> getLinkedDevices() throws IOException {
 339         List<DeviceInfo> devices = accountManager.getDevices();
 340         account.setMultiDevice(devices.size() > 1);
 341         account.save();
 342         return devices;
 343     }
 344
 345     public void removeLinkedDevices(int deviceId) throws IOException {
 346         accountManager.removeDevice(deviceId);
 347         List<DeviceInfo> devices = accountManager.getDevices();
 348         account.setMultiDevice(devices.size() > 1);
 349         account.save();
 350     }
 351
 352     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 353         Utils.DeviceLinkInfo info = Utils.parseDeviceLinkUri(linkUri);
 354
 355         addDevice(info.deviceIdentifier, info.deviceKey);
 356     }
 357
 358     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 359         IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 360         String verificationCode = accountManager.getNewDeviceVerificationCode();
 361
 362         accountManager.addDevice(deviceIdentifier, deviceKey, identityKeyPair, Optional.of(account.getProfileKey().serialize()), verificationCode);
 363         account.setMultiDevice(true);
 364         account.save();
 365     }
 366
 367     private List<PreKeyRecord> generatePreKeys() {
 368         List<PreKeyRecord> records = new ArrayList<>(ServiceConfig.PREKEY_BATCH_SIZE);
 369
 370         final int offset = account.getPreKeyIdOffset();
 371         for (int i = 0; i < ServiceConfig.PREKEY_BATCH_SIZE; i++) {
 372             int preKeyId = (offset + i) % Medium.MAX_VALUE;
 373             ECKeyPair keyPair = Curve.generateKeyPair();
 374             PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);
 375
 376             records.add(record);
 377         }
 378
 379         account.addPreKeys(records);
 380         account.save();
 381
 382         return records;
 383     }
 384
 385     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 386         try {
 387             ECKeyPair keyPair = Curve.generateKeyPair();
 388             byte[] signature = Curve.calculateSignature(identityKeyPair.getPrivateKey(), keyPair.getPublicKey().serialize());
 389             SignedPreKeyRecord record = new SignedPreKeyRecord(account.getNextSignedPreKeyId(), System.currentTimeMillis(), keyPair, signature);
 390
 391             account.addSignedPreKey(record);
 392             account.save();
 393
 394             return record;
 395         } catch (InvalidKeyException e) {
 396             throw new AssertionError(e);
 397         }
 398     }
 399
 400     public void verifyAccount(String verificationCode, String pin) throws IOException {
 401         verificationCode = verificationCode.replace("-", "");
 402         account.setSignalingKey(KeyUtils.createSignalingKey());
 403         // TODO make unrestricted unidentified access configurable
 404         VerifyAccountResponse response = accountManager.verifyAccountWithCode(verificationCode, account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, pin, null, getSelfUnidentifiedAccessKey(), false, capabilities, discoverableByPhoneNumber);
 405
 406         UUID uuid = UuidUtil.parseOrNull(response.getUuid());
 407         // TODO response.isStorageCapable()
 408         //accountManager.setGcmId(Optional.of(GoogleCloudMessaging.getInstance(this).register(REGISTRATION_ID)));
 409         account.setRegistered(true);
 410         account.setUuid(uuid);
 411         account.setRegistrationLockPin(pin);
 412         account.getSignalProtocolStore().saveIdentity(account.getSelfAddress(), getIdentityKeyPair().getPublicKey(), TrustLevel.TRUSTED_VERIFIED);
 413
 414         refreshPreKeys();
 415         account.save();
 416     }
 417
 418     public void setRegistrationLockPin(Optional<String> pin) throws IOException {
 419         if (pin.isPresent()) {
 420             account.setRegistrationLockPin(pin.get());
 421             throw new RuntimeException("Not implemented anymore, will be replaced with KBS");
 422         } else {
 423             account.setRegistrationLockPin(null);
 424             accountManager.removeRegistrationLockV1();
 425         }
 426         account.save();
 427     }
 428
 429     void refreshPreKeys() throws IOException {
 430         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 431         final IdentityKeyPair identityKeyPair = getIdentityKeyPair();
 432         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 433
 434         accountManager.setPreKeys(identityKeyPair.getPublicKey(), signedPreKeyRecord, oneTimePreKeys);
 435     }
 436
 437     private SignalServiceMessageReceiver getMessageReceiver() {
 438         final ClientZkProfileOperations clientZkProfileOperations = capabilities.isGv2()
 439                 ? ClientZkOperations.create(serviceConfiguration).getProfileOperations()
 440                 : null;
 441         return new SignalServiceMessageReceiver(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(), account.getDeviceId(), account.getSignalingKey(), userAgent, null, timer, clientZkProfileOperations);
 442     }
 443
 444     private SignalServiceMessageSender getMessageSender() {
 445         final ClientZkProfileOperations clientZkProfileOperations = capabilities.isGv2()
 446                 ? ClientZkOperations.create(serviceConfiguration).getProfileOperations()
 447                 : null;
 448         final ExecutorService executor = null;
 449         return new SignalServiceMessageSender(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(),
 450                 account.getDeviceId(), account.getSignalProtocolStore(), userAgent, account.isMultiDevice(), Optional.fromNullable(messagePipe), Optional.fromNullable(unidentifiedMessagePipe), Optional.absent(), clientZkProfileOperations, executor, ServiceConfig.MAX_ENVELOPE_SIZE);
 451     }
 452
 453     private SignalServiceProfile getEncryptedRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess) throws IOException {
 454         SignalServiceMessagePipe pipe = unidentifiedMessagePipe != null && unidentifiedAccess.isPresent() ? unidentifiedMessagePipe
 455                 : messagePipe;
 456
 457         if (pipe != null) {
 458             try {
 459                 return pipe.getProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).get(10, TimeUnit.SECONDS).getProfile();
 460             } catch (IOException | InterruptedException | ExecutionException | TimeoutException ignored) {
 461             }
 462         }
 463
 464         SignalServiceMessageReceiver receiver = getMessageReceiver();
 465         try {
 466             return receiver.retrieveProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).get(10, TimeUnit.SECONDS).getProfile();
 467         } catch (InterruptedException | ExecutionException | TimeoutException e) {
 468             throw new IOException("Failed to retrieve profile", e);
 469         }
 470     }
 471
 472     private SignalProfile getRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess, ProfileKey profileKey) throws IOException {
 473         SignalProfileEntry profileEntry = account.getProfileStore().getProfile(address);
 474         long now = new Date().getTime();
 475         // Profiles are cache for 24h before retrieving them again
 476         if (profileEntry == null || profileEntry.getProfile() == null || now - profileEntry.getLastUpdateTimestamp() > 24 * 60 * 60 * 1000) {
 477             SignalProfile profile = retrieveRecipientProfile(address, unidentifiedAccess, profileKey);
 478             account.getProfileStore().updateProfile(address, profileKey, now, profile);
 479             return profile;
 480         }
 481         return profileEntry.getProfile();
 482     }
 483
 484     private SignalProfile retrieveRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess, ProfileKey profileKey) throws IOException {
 485         final SignalServiceProfile encryptedProfile = getEncryptedRecipientProfile(address, unidentifiedAccess);
 486
 487         File avatarFile = null;
 488         try {
 489             avatarFile = encryptedProfile.getAvatar() == null ? null : retrieveProfileAvatar(address, encryptedProfile.getAvatar(), profileKey);
 490         } catch (Throwable e) {
 491             System.err.println("Failed to retrieve profile avatar, ignoring: " + e.getMessage());
 492         }
 493
 494         ProfileCipher profileCipher = new ProfileCipher(profileKey);
 495         try {
 496             return new SignalProfile(
 497                     encryptedProfile.getIdentityKey(),
 498                     encryptedProfile.getName() == null ? null : new String(profileCipher.decryptName(Base64.decode(encryptedProfile.getName()))),
 499                     avatarFile,
 500                     encryptedProfile.getUnidentifiedAccess() == null || !profileCipher.verifyUnidentifiedAccess(Base64.decode(encryptedProfile.getUnidentifiedAccess())) ? null : encryptedProfile.getUnidentifiedAccess(),
 501                     encryptedProfile.isUnrestrictedUnidentifiedAccess(),
 502                     encryptedProfile.getCapabilities());
 503         } catch (InvalidCiphertextException e) {
 504             return null;
 505         }
 506     }
 507
 508     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(byte[] groupId) throws IOException {
 509         File file = getGroupAvatarFile(groupId);
 510         if (!file.exists()) {
 511             return Optional.absent();
 512         }
 513
 514         return Optional.of(Utils.createAttachment(file));
 515     }
 516
 517     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(String number) throws IOException {
 518         File file = getContactAvatarFile(number);
 519         if (!file.exists()) {
 520             return Optional.absent();
 521         }
 522
 523         return Optional.of(Utils.createAttachment(file));
 524     }
 525
 526     private GroupInfo getGroupForSending(byte[] groupId) throws GroupNotFoundException, NotAGroupMemberException {
 527         GroupInfo g = account.getGroupStore().getGroup(groupId);
 528         if (g == null) {
 529             throw new GroupNotFoundException(groupId);
 530         }
 531         if (!g.isMember(account.getSelfAddress())) {
 532             throw new NotAGroupMemberException(groupId, g.getTitle());
 533         }
 534         return g;
 535     }
 536
 537     public List<GroupInfo> getGroups() {
 538         return account.getGroupStore().getGroups();
 539     }
 540
 541     public Pair<Long, List<SendMessageResult>> sendGroupMessage(
 542             String messageText,
 543             List<String> attachments,
 544             byte[] groupId
 545     )
 546             throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 547         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 548         if (attachments != null) {
 549             messageBuilder.withAttachments(Utils.getSignalServiceAttachments(attachments));
 550         }
 551
 552         final GroupInfo g = getGroupForSending(groupId);
 553
 554         setGroupContext(messageBuilder, g);
 555         messageBuilder.withExpiration(g.getMessageExpirationTime());
 556
 557         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 558     }
 559
 560     private void setGroupContext(final SignalServiceDataMessage.Builder messageBuilder, final GroupInfo groupInfo) {
 561         if (groupInfo instanceof GroupInfoV1) {
 562             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 563                     .withId(groupInfo.groupId)
 564                     .build();
 565             messageBuilder.asGroupMessage(group);
 566         } else {
 567             final GroupInfoV2 groupInfoV2 = (GroupInfoV2) groupInfo;
 568             SignalServiceGroupV2 group = SignalServiceGroupV2.newBuilder(groupInfoV2.getMasterKey())
 569                     .withRevision(groupInfoV2.getGroup() == null ? 0 : groupInfoV2.getGroup().getRevision())
 570                     .build();
 571             messageBuilder.asGroupMessage(group);
 572         }
 573     }
 574
 575     public Pair<Long, List<SendMessageResult>> sendGroupMessageReaction(String emoji, boolean remove, String targetAuthor,
 576                                                                         long targetSentTimestamp, byte[] groupId)
 577             throws IOException, InvalidNumberException, NotAGroupMemberException, GroupNotFoundException {
 578         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, canonicalizeAndResolveSignalServiceAddress(targetAuthor), targetSentTimestamp);
 579         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 580                 .withReaction(reaction);
 581         final GroupInfo g = getGroupForSending(groupId);
 582         setGroupContext(messageBuilder, g);
 583         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 584     }
 585
 586     public Pair<Long, List<SendMessageResult>> sendQuitGroupMessage(byte[] groupId) throws GroupNotFoundException, IOException, NotAGroupMemberException {
 587         SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 588                 .withId(groupId)
 589                 .build();
 590
 591         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 592                 .asGroupMessage(group);
 593
 594         final GroupInfo g = getGroupForSending(groupId);
 595         if (g instanceof GroupInfoV1) {
 596             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
 597             groupInfoV1.removeMember(account.getSelfAddress());
 598             account.getGroupStore().updateGroup(groupInfoV1);
 599         } else {
 600             throw new RuntimeException("TODO Not implemented!");
 601         }
 602
 603         return sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 604     }
 605
 606     private Pair<byte[], List<SendMessageResult>> sendUpdateGroupMessage(byte[] groupId, String name, Collection<SignalServiceAddress> members, String avatarFile) throws IOException, GroupNotFoundException, AttachmentInvalidException, NotAGroupMemberException {
 607         GroupInfoV1 g;
 608         if (groupId == null) {
 609             // Create new group
 610             g = new GroupInfoV1(KeyUtils.createGroupId());
 611             g.addMembers(Collections.singleton(account.getSelfAddress()));
 612         } else {
 613             GroupInfo group = getGroupForSending(groupId);
 614             if (!(group instanceof GroupInfoV1)) {
 615                 throw new RuntimeException("TODO Not implemented!");
 616             }
 617             g = (GroupInfoV1) group;
 618         }
 619
 620         if (name != null) {
 621             g.name = name;
 622         }
 623
 624         if (members != null) {
 625             final Set<String> newE164Members = new HashSet<>();
 626             for (SignalServiceAddress member : members) {
 627                 if (g.isMember(member) || !member.getNumber().isPresent()) {
 628                     continue;
 629                 }
 630                 newE164Members.add(member.getNumber().get());
 631             }
 632
 633             final List<ContactTokenDetails> contacts = accountManager.getContacts(newE164Members);
 634             if (contacts.size() != newE164Members.size()) {
 635                 // Some of the new members are not registered on Signal
 636                 for (ContactTokenDetails contact : contacts) {
 637                     newE164Members.remove(contact.getNumber());
 638                 }
 639                 throw new IOException("Failed to add members " + Util.join(", ", newE164Members) + " to group: Not registered on Signal");
 640             }
 641
 642             g.addMembers(members);
 643         }
 644
 645         if (avatarFile != null) {
 646             IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
 647             File aFile = getGroupAvatarFile(g.groupId);
 648             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 649         }
 650
 651         account.getGroupStore().updateGroup(g);
 652
 653         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 654
 655         final Pair<Long, List<SendMessageResult>> result = sendMessage(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 656         return new Pair<>(g.groupId, result.second());
 657     }
 658
 659     Pair<Long, List<SendMessageResult>> sendUpdateGroupMessage(byte[] groupId, SignalServiceAddress recipient) throws IOException, NotAGroupMemberException, GroupNotFoundException, AttachmentInvalidException {
 660         GroupInfoV1 g;
 661         GroupInfo group = getGroupForSending(groupId);
 662         if (!(group instanceof GroupInfoV1)) {
 663             throw new RuntimeException("TODO Not implemented!");
 664         }
 665         g = (GroupInfoV1) group;
 666
 667         if (!g.isMember(recipient)) {
 668             throw new NotAGroupMemberException(groupId, g.name);
 669         }
 670
 671         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 672
 673         // Send group message only to the recipient who requested it
 674         return sendMessage(messageBuilder, Collections.singleton(recipient));
 675     }
 676
 677     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfoV1 g) throws AttachmentInvalidException {
 678         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 679                 .withId(g.groupId)
 680                 .withName(g.name)
 681                 .withMembers(new ArrayList<>(g.getMembers()));
 682
 683         File aFile = getGroupAvatarFile(g.groupId);
 684         if (aFile.exists()) {
 685             try {
 686                 group.withAvatar(Utils.createAttachment(aFile));
 687             } catch (IOException e) {
 688                 throw new AttachmentInvalidException(aFile.toString(), e);
 689             }
 690         }
 691
 692         return SignalServiceDataMessage.newBuilder()
 693                 .asGroupMessage(group.build())
 694                 .withExpiration(g.messageExpirationTime);
 695     }
 696
 697     Pair<Long, List<SendMessageResult>> sendGroupInfoRequest(byte[] groupId, SignalServiceAddress recipient) throws IOException {
 698         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 699                 .withId(groupId);
 700
 701         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 702                 .asGroupMessage(group.build());
 703
 704         // Send group info request message to the recipient who sent us a message with this groupId
 705         return sendMessage(messageBuilder, Collections.singleton(recipient));
 706     }
 707
 708     void sendReceipt(SignalServiceAddress remoteAddress, long messageId) throws IOException, UntrustedIdentityException {
 709         SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
 710                 Collections.singletonList(messageId),
 711                 System.currentTimeMillis());
 712
 713         getMessageSender().sendReceipt(remoteAddress, getAccessFor(remoteAddress), receiptMessage);
 714     }
 715
 716     public Pair<Long, List<SendMessageResult>> sendMessage(String messageText, List<String> attachments,
 717                                                            List<String> recipients)
 718             throws IOException, AttachmentInvalidException, InvalidNumberException {
 719         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 720         if (attachments != null) {
 721             List<SignalServiceAttachment> attachmentStreams = Utils.getSignalServiceAttachments(attachments);
 722
 723             // Upload attachments here, so we only upload once even for multiple recipients
 724             SignalServiceMessageSender messageSender = getMessageSender();
 725             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 726             for (SignalServiceAttachment attachment : attachmentStreams) {
 727                 if (attachment.isStream()) {
 728                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 729                 } else if (attachment.isPointer()) {
 730                     attachmentPointers.add(attachment.asPointer());
 731                 }
 732             }
 733
 734             messageBuilder.withAttachments(attachmentPointers);
 735         }
 736         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
 737     }
 738
 739     public Pair<Long, List<SendMessageResult>> sendMessageReaction(String emoji, boolean remove, String targetAuthor,
 740                                                                    long targetSentTimestamp, List<String> recipients)
 741             throws IOException, InvalidNumberException {
 742         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, canonicalizeAndResolveSignalServiceAddress(targetAuthor), targetSentTimestamp);
 743         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 744                 .withReaction(reaction);
 745         return sendMessage(messageBuilder, getSignalServiceAddresses(recipients));
 746     }
 747
 748     public Pair<Long, List<SendMessageResult>> sendEndSessionMessage(List<String> recipients) throws IOException, InvalidNumberException {
 749         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 750                 .asEndSessionMessage();
 751
 752         final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
 753         try {
 754             return sendMessage(messageBuilder, signalServiceAddresses);
 755         } catch (Exception e) {
 756             for (SignalServiceAddress address : signalServiceAddresses) {
 757                 handleEndSession(address);
 758             }
 759             account.save();
 760             throw e;
 761         }
 762     }
 763
 764     public String getContactName(String number) throws InvalidNumberException {
 765         ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));
 766         if (contact == null) {
 767             return "";
 768         } else {
 769             return contact.name;
 770         }
 771     }
 772
 773     public void setContactName(String number, String name) throws InvalidNumberException {
 774         final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 775         ContactInfo contact = account.getContactStore().getContact(address);
 776         if (contact == null) {
 777             contact = new ContactInfo(address);
 778         }
 779         contact.name = name;
 780         account.getContactStore().updateContact(contact);
 781         account.save();
 782     }
 783
 784     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
 785         setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
 786     }
 787
 788     private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
 789         ContactInfo contact = account.getContactStore().getContact(address);
 790         if (contact == null) {
 791             contact = new ContactInfo(address);
 792         }
 793         contact.blocked = blocked;
 794         account.getContactStore().updateContact(contact);
 795         account.save();
 796     }
 797
 798     public void setGroupBlocked(final byte[] groupId, final boolean blocked) throws GroupNotFoundException {
 799         GroupInfo group = getGroup(groupId);
 800         if (group == null) {
 801             throw new GroupNotFoundException(groupId);
 802         }
 803
 804         group.setBlocked(blocked);
 805         account.getGroupStore().updateGroup(group);
 806         account.save();
 807     }
 808
 809     public Pair<byte[], List<SendMessageResult>> updateGroup(byte[] groupId, String name, List<String> members, String avatar) throws IOException, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException, NotAGroupMemberException {
 810         if (groupId.length == 0) {
 811             groupId = null;
 812         }
 813         if (name.isEmpty()) {
 814             name = null;
 815         }
 816         if (members.isEmpty()) {
 817             members = null;
 818         }
 819         if (avatar.isEmpty()) {
 820             avatar = null;
 821         }
 822         return sendUpdateGroupMessage(groupId, name, members == null ? null : getSignalServiceAddresses(members), avatar);
 823     }
 824
 825     /**
 826      * Change the expiration timer for a contact
 827      */
 828     public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) throws IOException {
 829         ContactInfo contact = account.getContactStore().getContact(address);
 830         contact.messageExpirationTime = messageExpirationTimer;
 831         account.getContactStore().updateContact(contact);
 832         sendExpirationTimerUpdate(address);
 833         account.save();
 834     }
 835
 836     private void sendExpirationTimerUpdate(SignalServiceAddress address) throws IOException {
 837         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 838                 .asExpirationUpdate();
 839         sendMessage(messageBuilder, Collections.singleton(address));
 840     }
 841
 842     /**
 843      * Change the expiration timer for a contact
 844      */
 845     public void setExpirationTimer(String number, int messageExpirationTimer) throws IOException, InvalidNumberException {
 846         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 847         setExpirationTimer(address, messageExpirationTimer);
 848     }
 849
 850     /**
 851      * Change the expiration timer for a group
 852      */
 853     public void setExpirationTimer(byte[] groupId, int messageExpirationTimer) {
 854         GroupInfo g = account.getGroupStore().getGroup(groupId);
 855         if (g instanceof GroupInfoV1) {
 856             GroupInfoV1 groupInfoV1 = (GroupInfoV1) g;
 857             groupInfoV1.messageExpirationTime = messageExpirationTimer;
 858             account.getGroupStore().updateGroup(groupInfoV1);
 859         } else {
 860             throw new RuntimeException("TODO Not implemented!");
 861         }
 862     }
 863
 864     /**
 865      * Upload the sticker pack from path.
 866      *
 867      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
 868      * @return if successful, returns the URL to install the sticker pack in the signal app
 869      */
 870     public String uploadStickerPack(String path) throws IOException, StickerPackInvalidException {
 871         SignalServiceStickerManifestUpload manifest = getSignalServiceStickerManifestUpload(path);
 872
 873         SignalServiceMessageSender messageSender = getMessageSender();
 874
 875         byte[] packKey = KeyUtils.createStickerUploadKey();
 876         String packId = messageSender.uploadStickerManifest(manifest, packKey);
 877
 878         Sticker sticker = new Sticker(Hex.fromStringCondensed(packId), packKey);
 879         account.getStickerStore().updateSticker(sticker);
 880         account.save();
 881
 882         try {
 883             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))
 884                     .toString();
 885         } catch (URISyntaxException e) {
 886             throw new AssertionError(e);
 887         }
 888     }
 889
 890     private SignalServiceStickerManifestUpload getSignalServiceStickerManifestUpload(final String path) throws IOException, StickerPackInvalidException {
 891         ZipFile zip = null;
 892         String rootPath = null;
 893
 894         final File file = new File(path);
 895         if (file.getName().endsWith(".zip")) {
 896             zip = new ZipFile(file);
 897         } else if (file.getName().equals("manifest.json")) {
 898             rootPath = file.getParent();
 899         } else {
 900             throw new StickerPackInvalidException("Could not find manifest.json");
 901         }
 902
 903         JsonStickerPack pack = parseStickerPack(rootPath, zip);
 904
 905         if (pack.stickers == null) {
 906             throw new StickerPackInvalidException("Must set a 'stickers' field.");
 907         }
 908
 909         if (pack.stickers.isEmpty()) {
 910             throw new StickerPackInvalidException("Must include stickers.");
 911         }
 912
 913         List<StickerInfo> stickers = new ArrayList<>(pack.stickers.size());
 914         for (JsonStickerPack.JsonSticker sticker : pack.stickers) {
 915             if (sticker.file == null) {
 916                 throw new StickerPackInvalidException("Must set a 'file' field on each sticker.");
 917             }
 918
 919             Pair<InputStream, Long> data;
 920             try {
 921                 data = getInputStreamAndLength(rootPath, zip, sticker.file);
 922             } catch (IOException ignored) {
 923                 throw new StickerPackInvalidException("Could not find find " + sticker.file);
 924             }
 925
 926             String contentType = Utils.getFileMimeType(new File(sticker.file), null);
 927             StickerInfo stickerInfo = new StickerInfo(data.first(), data.second(), Optional.fromNullable(sticker.emoji).or(""), contentType);
 928             stickers.add(stickerInfo);
 929         }
 930
 931         StickerInfo cover = null;
 932         if (pack.cover != null) {
 933             if (pack.cover.file == null) {
 934                 throw new StickerPackInvalidException("Must set a 'file' field on the cover.");
 935             }
 936
 937             Pair<InputStream, Long> data;
 938             try {
 939                 data = getInputStreamAndLength(rootPath, zip, pack.cover.file);
 940             } catch (IOException ignored) {
 941                 throw new StickerPackInvalidException("Could not find find " + pack.cover.file);
 942             }
 943
 944             String contentType = Utils.getFileMimeType(new File(pack.cover.file), null);
 945             cover = new StickerInfo(data.first(), data.second(), Optional.fromNullable(pack.cover.emoji).or(""), contentType);
 946         }
 947
 948         return new SignalServiceStickerManifestUpload(
 949                 pack.title,
 950                 pack.author,
 951                 cover,
 952                 stickers);
 953     }
 954
 955     private static JsonStickerPack parseStickerPack(String rootPath, ZipFile zip) throws IOException {
 956         InputStream inputStream;
 957         if (zip != null) {
 958             inputStream = zip.getInputStream(zip.getEntry("manifest.json"));
 959         } else {
 960             inputStream = new FileInputStream((new File(rootPath, "manifest.json")));
 961         }
 962         return new ObjectMapper().readValue(inputStream, JsonStickerPack.class);
 963     }
 964
 965     private static Pair<InputStream, Long> getInputStreamAndLength(final String rootPath, final ZipFile zip, final String subfile) throws IOException {
 966         if (zip != null) {
 967             final ZipEntry entry = zip.getEntry(subfile);
 968             return new Pair<>(zip.getInputStream(entry), entry.getSize());
 969         } else {
 970             final File file = new File(rootPath, subfile);
 971             return new Pair<>(new FileInputStream(file), file.length());
 972         }
 973     }
 974
 975     void requestSyncGroups() throws IOException {
 976         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS).build();
 977         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 978         try {
 979             sendSyncMessage(message);
 980         } catch (UntrustedIdentityException e) {
 981             e.printStackTrace();
 982         }
 983     }
 984
 985     void requestSyncContacts() throws IOException {
 986         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS).build();
 987         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 988         try {
 989             sendSyncMessage(message);
 990         } catch (UntrustedIdentityException e) {
 991             e.printStackTrace();
 992         }
 993     }
 994
 995     void requestSyncBlocked() throws IOException {
 996         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED).build();
 997         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 998         try {
 999             sendSyncMessage(message);
1000         } catch (UntrustedIdentityException e) {
1001             e.printStackTrace();
1002         }
1003     }
1004
1005     void requestSyncConfiguration() throws IOException {
1006         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION).build();
1007         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1008         try {
1009             sendSyncMessage(message);
1010         } catch (UntrustedIdentityException e) {
1011             e.printStackTrace();
1012         }
1013     }
1014
1015     private byte[] getSenderCertificate() {
1016         // TODO support UUID capable sender certificates
1017         // byte[] certificate = accountManager.getSenderCertificateForPhoneNumberPrivacy();
1018         byte[] certificate;
1019         try {
1020             certificate = accountManager.getSenderCertificate();
1021         } catch (IOException e) {
1022             System.err.println("Failed to get sender certificate: " + e);
1023             return null;
1024         }
1025         // TODO cache for a day
1026         return certificate;
1027     }
1028
1029     private byte[] getSelfUnidentifiedAccessKey() {
1030         return UnidentifiedAccess.deriveAccessKeyFrom(account.getProfileKey());
1031     }
1032
1033     private byte[] getTargetUnidentifiedAccessKey(SignalServiceAddress recipient) {
1034         ProfileKey theirProfileKey = account.getProfileStore().getProfileKey(recipient);
1035         if (theirProfileKey == null) {
1036             return null;
1037         }
1038         SignalProfile targetProfile;
1039         try {
1040             targetProfile = getRecipientProfile(recipient, Optional.absent(), theirProfileKey);
1041         } catch (IOException e) {
1042             System.err.println("Failed to get recipient profile: " + e);
1043             return null;
1044         }
1045
1046         if (targetProfile == null || targetProfile.getUnidentifiedAccess() == null) {
1047             return null;
1048         }
1049
1050         if (targetProfile.isUnrestrictedUnidentifiedAccess()) {
1051             return KeyUtils.createUnrestrictedUnidentifiedAccess();
1052         }
1053
1054         return UnidentifiedAccess.deriveAccessKeyFrom(theirProfileKey);
1055     }
1056
1057     private Optional<UnidentifiedAccessPair> getAccessForSync() {
1058         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
1059         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
1060
1061         if (selfUnidentifiedAccessKey == null || selfUnidentifiedAccessCertificate == null) {
1062             return Optional.absent();
1063         }
1064
1065         try {
1066             return Optional.of(new UnidentifiedAccessPair(
1067                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate),
1068                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate)
1069             ));
1070         } catch (InvalidCertificateException e) {
1071             return Optional.absent();
1072         }
1073     }
1074
1075     private List<Optional<UnidentifiedAccessPair>> getAccessFor(Collection<SignalServiceAddress> recipients) {
1076         List<Optional<UnidentifiedAccessPair>> result = new ArrayList<>(recipients.size());
1077         for (SignalServiceAddress recipient : recipients) {
1078             result.add(getAccessFor(recipient));
1079         }
1080         return result;
1081     }
1082
1083     private Optional<UnidentifiedAccessPair> getAccessFor(SignalServiceAddress recipient) {
1084         byte[] recipientUnidentifiedAccessKey = getTargetUnidentifiedAccessKey(recipient);
1085         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
1086         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
1087
1088         if (recipientUnidentifiedAccessKey == null || selfUnidentifiedAccessKey == null || selfUnidentifiedAccessCertificate == null) {
1089             return Optional.absent();
1090         }
1091
1092         try {
1093             return Optional.of(new UnidentifiedAccessPair(
1094                     new UnidentifiedAccess(recipientUnidentifiedAccessKey, selfUnidentifiedAccessCertificate),
1095                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate)
1096             ));
1097         } catch (InvalidCertificateException e) {
1098             return Optional.absent();
1099         }
1100     }
1101
1102     private Optional<UnidentifiedAccess> getUnidentifiedAccess(SignalServiceAddress recipient) {
1103         Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
1104
1105         if (unidentifiedAccess.isPresent()) {
1106             return unidentifiedAccess.get().getTargetUnidentifiedAccess();
1107         }
1108
1109         return Optional.absent();
1110     }
1111
1112     private void sendSyncMessage(SignalServiceSyncMessage message)
1113             throws IOException, UntrustedIdentityException {
1114         SignalServiceMessageSender messageSender = getMessageSender();
1115         try {
1116             messageSender.sendMessage(message, getAccessForSync());
1117         } catch (UntrustedIdentityException e) {
1118             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1119             throw e;
1120         }
1121     }
1122
1123     private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1124         final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
1125
1126         for (String number : numbers) {
1127             signalServiceAddresses.add(canonicalizeAndResolveSignalServiceAddress(number));
1128         }
1129         return signalServiceAddresses;
1130     }
1131
1132     private Pair<Long, List<SendMessageResult>> sendMessage(SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients)
1133             throws IOException {
1134         recipients = recipients.stream().map(this::resolveSignalServiceAddress).collect(Collectors.toSet());
1135         final long timestamp = System.currentTimeMillis();
1136         messageBuilder.withTimestamp(timestamp);
1137         if (messagePipe == null) {
1138             messagePipe = getMessageReceiver().createMessagePipe();
1139         }
1140         if (unidentifiedMessagePipe == null) {
1141             unidentifiedMessagePipe = getMessageReceiver().createUnidentifiedMessagePipe();
1142         }
1143         SignalServiceDataMessage message = null;
1144         try {
1145             message = messageBuilder.build();
1146             if (message.getGroupContext().isPresent()) {
1147                 try {
1148                     SignalServiceMessageSender messageSender = getMessageSender();
1149                     final boolean isRecipientUpdate = false;
1150                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients), getAccessFor(recipients), isRecipientUpdate, message);
1151                     for (SendMessageResult r : result) {
1152                         if (r.getIdentityFailure() != null) {
1153                             account.getSignalProtocolStore().saveIdentity(r.getAddress(), r.getIdentityFailure().getIdentityKey(), TrustLevel.UNTRUSTED);
1154                         }
1155                     }
1156                     return new Pair<>(timestamp, result);
1157                 } catch (UntrustedIdentityException e) {
1158                     account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1159                     return new Pair<>(timestamp, Collections.emptyList());
1160                 }
1161             } else {
1162                 // Send to all individually, so sync messages are sent correctly
1163                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1164                 for (SignalServiceAddress address : recipients) {
1165                     ContactInfo contact = account.getContactStore().getContact(address);
1166                     if (contact != null) {
1167                         messageBuilder.withExpiration(contact.messageExpirationTime);
1168                         messageBuilder.withProfileKey(account.getProfileKey().serialize());
1169                     } else {
1170                         messageBuilder.withExpiration(0);
1171                         messageBuilder.withProfileKey(null);
1172                     }
1173                     message = messageBuilder.build();
1174                     if (address.matches(account.getSelfAddress())) {
1175                         results.add(sendSelfMessage(message));
1176                     } else {
1177                         results.add(sendMessage(address, message));
1178                     }
1179                 }
1180                 return new Pair<>(timestamp, results);
1181             }
1182         } finally {
1183             if (message != null && message.isEndSession()) {
1184                 for (SignalServiceAddress recipient : recipients) {
1185                     handleEndSession(recipient);
1186                 }
1187             }
1188             account.save();
1189         }
1190     }
1191
1192     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) throws IOException {
1193         SignalServiceMessageSender messageSender = getMessageSender();
1194
1195         SignalServiceAddress recipient = account.getSelfAddress();
1196
1197         final Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
1198         SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1199                 message.getTimestamp(),
1200                 message,
1201                 message.getExpiresInSeconds(),
1202                 Collections.singletonMap(recipient, unidentifiedAccess.isPresent()),
1203                 false);
1204         SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1205
1206         try {
1207             long startTime = System.currentTimeMillis();
1208             messageSender.sendMessage(syncMessage, unidentifiedAccess);
1209             return SendMessageResult.success(recipient, unidentifiedAccess.isPresent(), false, System.currentTimeMillis() - startTime);
1210         } catch (UntrustedIdentityException e) {
1211             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1212             return SendMessageResult.identityFailure(recipient, e.getIdentityKey());
1213         }
1214     }
1215
1216     private SendMessageResult sendMessage(SignalServiceAddress address, SignalServiceDataMessage message) throws IOException {
1217         SignalServiceMessageSender messageSender = getMessageSender();
1218
1219         try {
1220             return messageSender.sendMessage(address, getAccessFor(address), message);
1221         } catch (UntrustedIdentityException e) {
1222             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1223             return SendMessageResult.identityFailure(address, e.getIdentityKey());
1224         }
1225     }
1226
1227     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1228         SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(), account.getSignalProtocolStore(), Utils.getCertificateValidator());
1229         try {
1230             return cipher.decrypt(envelope);
1231         } catch (ProtocolUntrustedIdentityException e) {
1232             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1233                 org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e.getCause();
1234                 account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(identityException.getName()), identityException.getUntrustedIdentity(), TrustLevel.UNTRUSTED);
1235                 throw identityException;
1236             }
1237             throw new AssertionError(e);
1238         }
1239     }
1240
1241     private void handleEndSession(SignalServiceAddress source) {
1242         account.getSignalProtocolStore().deleteAllSessions(source);
1243     }
1244
1245     private static int currentTimeDays() {
1246         return (int) TimeUnit.MILLISECONDS.toDays(System.currentTimeMillis());
1247     }
1248
1249     private GroupsV2AuthorizationString getGroupAuthForToday(final GroupSecretParams groupSecretParams) throws IOException, VerificationFailedException {
1250         final int today = currentTimeDays();
1251         // Returns credentials for the next 7 days
1252         final HashMap<Integer, AuthCredentialResponse> credentials = groupsV2Api.getCredentials(today);
1253         // TODO cache credentials until they expire
1254         AuthCredentialResponse authCredentialResponse = credentials.get(today);
1255         return groupsV2Api.getGroupsV2AuthorizationString(account.getUuid(), today, groupSecretParams, authCredentialResponse);
1256     }
1257
1258     private List<HandleAction> handleSignalServiceDataMessage(SignalServiceDataMessage message, boolean isSync, SignalServiceAddress source, SignalServiceAddress destination, boolean ignoreAttachments) {
1259         List<HandleAction> actions = new ArrayList<>();
1260         if (message.getGroupContext().isPresent()) {
1261             if (message.getGroupContext().get().getGroupV1().isPresent()) {
1262                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1263                 GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
1264                 if (group == null || group instanceof GroupInfoV1) {
1265                     GroupInfoV1 groupV1 = (GroupInfoV1) group;
1266                     switch (groupInfo.getType()) {
1267                         case UPDATE: {
1268                             if (groupV1 == null) {
1269                                 groupV1 = new GroupInfoV1(groupInfo.getGroupId());
1270                             }
1271
1272                             if (groupInfo.getAvatar().isPresent()) {
1273                                 SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1274                                 if (avatar.isPointer()) {
1275                                     try {
1276                                         retrieveGroupAvatarAttachment(avatar.asPointer(), groupV1.groupId);
1277                                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1278                                         System.err.println("Failed to retrieve group avatar (" + avatar.asPointer().getRemoteId() + "): " + e.getMessage());
1279                                     }
1280                                 }
1281                             }
1282
1283                             if (groupInfo.getName().isPresent()) {
1284                                 groupV1.name = groupInfo.getName().get();
1285                             }
1286
1287                             if (groupInfo.getMembers().isPresent()) {
1288                                 groupV1.addMembers(groupInfo.getMembers().get()
1289                                         .stream()
1290                                         .map(this::resolveSignalServiceAddress)
1291                                         .collect(Collectors.toSet()));
1292                             }
1293
1294                             account.getGroupStore().updateGroup(groupV1);
1295                             break;
1296                         }
1297                         case DELIVER:
1298                             if (groupV1 == null && !isSync) {
1299                                 actions.add(new SendGroupInfoRequestAction(source, groupInfo.getGroupId()));
1300                             }
1301                             break;
1302                         case QUIT: {
1303                             if (groupV1 != null) {
1304                                 groupV1.removeMember(source);
1305                                 account.getGroupStore().updateGroup(groupV1);
1306                             }
1307                             break;
1308                         }
1309                         case REQUEST_INFO:
1310                             if (groupV1 != null && !isSync) {
1311                                 actions.add(new SendGroupUpdateAction(source, groupV1.groupId));
1312                             }
1313                             break;
1314                     }
1315                 } else {
1316                     System.err.println("Received a group v1 message for a v2 group: " + group.getTitle());
1317                 }
1318             }
1319             if (message.getGroupContext().get().getGroupV2().isPresent()) {
1320                 final SignalServiceGroupV2 groupContext = message.getGroupContext().get().getGroupV2().get();
1321                 final GroupMasterKey groupMasterKey = groupContext.getMasterKey();
1322
1323                 final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
1324
1325                 byte[] groupId = groupSecretParams.getPublicParams().getGroupIdentifier().serialize();
1326                 GroupInfo groupInfo = account.getGroupStore().getGroup(groupId);
1327                 if (groupInfo instanceof GroupInfoV1) {
1328                     // TODO upgrade group
1329                 } else if (groupInfo == null || groupInfo instanceof GroupInfoV2) {
1330                     GroupInfoV2 groupInfoV2 = groupInfo == null
1331                             ? new GroupInfoV2(groupId, groupMasterKey)
1332                             : (GroupInfoV2) groupInfo;
1333
1334                     if (groupInfoV2.getGroup() == null || groupInfoV2.getGroup().getRevision() < groupContext.getRevision()) {
1335                         // TODO check if revision is only 1 behind and a signedGroupChange is available
1336                         try {
1337                             final GroupsV2AuthorizationString groupsV2AuthorizationString = getGroupAuthForToday(groupSecretParams);
1338                             final DecryptedGroup group = groupsV2Api.getGroup(groupSecretParams, groupsV2AuthorizationString);
1339                             groupInfoV2.setGroup(group);
1340                             for (DecryptedMember member : group.getMembersList()) {
1341                                 final SignalServiceAddress address = resolveSignalServiceAddress(new SignalServiceAddress(UuidUtil.parseOrThrow(member.getUuid().toByteArray()), null));
1342                                 try {
1343                                     account.getProfileStore().storeProfileKey(address, new ProfileKey(member.getProfileKey().toByteArray()));
1344                                 } catch (InvalidInputException ignored) {
1345                                 }
1346                             }
1347                         } catch (IOException | VerificationFailedException | InvalidGroupStateException e) {
1348                             System.err.println("Failed to retrieve Group V2 info, ignoring ...");
1349                         }
1350                         account.getGroupStore().updateGroup(groupInfoV2);
1351                     }
1352                 }
1353             }
1354         }
1355         final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;
1356         if (message.isEndSession()) {
1357             handleEndSession(conversationPartnerAddress);
1358         }
1359         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1360             if (message.getGroupContext().isPresent()) {
1361                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
1362                     SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1363                     GroupInfoV1 group = account.getGroupStore().getOrCreateGroupV1(groupInfo.getGroupId());
1364                     if (group != null) {
1365                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1366                             group.messageExpirationTime = message.getExpiresInSeconds();
1367                             account.getGroupStore().updateGroup(group);
1368                         }
1369                     }
1370                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
1371                     // disappearing message timer already stored in the DecryptedGroup
1372                 }
1373             } else {
1374                 ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
1375                 if (contact == null) {
1376                     contact = new ContactInfo(conversationPartnerAddress);
1377                 }
1378                 if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
1379                     contact.messageExpirationTime = message.getExpiresInSeconds();
1380                     account.getContactStore().updateContact(contact);
1381                 }
1382             }
1383         }
1384         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1385             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1386                 if (attachment.isPointer()) {
1387                     try {
1388                         retrieveAttachment(attachment.asPointer());
1389                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1390                         System.err.println("Failed to retrieve attachment (" + attachment.asPointer().getRemoteId() + "): " + e.getMessage());
1391                     }
1392                 }
1393             }
1394         }
1395         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1396             final ProfileKey profileKey;
1397             try {
1398                 profileKey = new ProfileKey(message.getProfileKey().get());
1399             } catch (InvalidInputException e) {
1400                 throw new AssertionError(e);
1401             }
1402             if (source.matches(account.getSelfAddress())) {
1403                 this.account.setProfileKey(profileKey);
1404             }
1405             this.account.getProfileStore().storeProfileKey(source, profileKey);
1406         }
1407         if (message.getPreviews().isPresent()) {
1408             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1409             for (SignalServiceDataMessage.Preview preview : previews) {
1410                 if (preview.getImage().isPresent() && preview.getImage().get().isPointer()) {
1411                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
1412                     try {
1413                         retrieveAttachment(attachment);
1414                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1415                         System.err.println("Failed to retrieve attachment (" + attachment.getRemoteId() + "): " + e.getMessage());
1416                     }
1417                 }
1418             }
1419         }
1420         if (message.getSticker().isPresent()) {
1421             final SignalServiceDataMessage.Sticker messageSticker = message.getSticker().get();
1422             Sticker sticker = account.getStickerStore().getSticker(messageSticker.getPackId());
1423             if (sticker == null) {
1424                 sticker = new Sticker(messageSticker.getPackId(), messageSticker.getPackKey());
1425                 account.getStickerStore().updateSticker(sticker);
1426             }
1427         }
1428         return actions;
1429     }
1430
1431     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1432         final File cachePath = new File(getMessageCachePath());
1433         if (!cachePath.exists()) {
1434             return;
1435         }
1436         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
1437             if (!dir.isDirectory()) {
1438                 retryFailedReceivedMessage(handler, ignoreAttachments, dir);
1439                 continue;
1440             }
1441
1442             for (final File fileEntry : Objects.requireNonNull(dir.listFiles())) {
1443                 if (!fileEntry.isFile()) {
1444                     continue;
1445                 }
1446                 retryFailedReceivedMessage(handler, ignoreAttachments, fileEntry);
1447             }
1448             // Try to delete directory if empty
1449             dir.delete();
1450         }
1451     }
1452
1453     private void retryFailedReceivedMessage(final ReceiveMessageHandler handler, final boolean ignoreAttachments, final File fileEntry) {
1454         SignalServiceEnvelope envelope;
1455         try {
1456             envelope = Utils.loadEnvelope(fileEntry);
1457             if (envelope == null) {
1458                 return;
1459             }
1460         } catch (IOException e) {
1461             e.printStackTrace();
1462             return;
1463         }
1464         SignalServiceContent content = null;
1465         if (!envelope.isReceipt()) {
1466             try {
1467                 content = decryptMessage(envelope);
1468             } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
1469                 return;
1470             } catch (Exception er) {
1471                 // All other errors are not recoverable, so delete the cached message
1472                 try {
1473                     Files.delete(fileEntry.toPath());
1474                 } catch (IOException e) {
1475                     System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1476                 }
1477                 return;
1478             }
1479             List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1480             for (HandleAction action : actions) {
1481                 try {
1482                     action.execute(this);
1483                 } catch (Throwable e) {
1484                     e.printStackTrace();
1485                 }
1486             }
1487         }
1488         account.save();
1489         handler.handleMessage(envelope, content, null);
1490         try {
1491             Files.delete(fileEntry.toPath());
1492         } catch (IOException e) {
1493             System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1494         }
1495     }
1496
1497     public void receiveMessages(long timeout, TimeUnit unit, boolean returnOnTimeout, boolean ignoreAttachments, ReceiveMessageHandler handler) throws IOException {
1498         retryFailedReceivedMessages(handler, ignoreAttachments);
1499         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1500
1501         Set<HandleAction> queuedActions = null;
1502
1503         if (messagePipe == null) {
1504             messagePipe = messageReceiver.createMessagePipe();
1505         }
1506
1507         boolean hasCaughtUpWithOldMessages = false;
1508
1509         while (true) {
1510             SignalServiceEnvelope envelope;
1511             SignalServiceContent content = null;
1512             Exception exception = null;
1513             final long now = new Date().getTime();
1514             try {
1515                 Optional<SignalServiceEnvelope> result = messagePipe.readOrEmpty(timeout, unit, envelope1 -> {
1516                     // store message on disk, before acknowledging receipt to the server
1517                     try {
1518                         String source = envelope1.getSourceE164().isPresent() ? envelope1.getSourceE164().get() : "";
1519                         File cacheFile = getMessageCacheFile(source, now, envelope1.getTimestamp());
1520                         Utils.storeEnvelope(envelope1, cacheFile);
1521                     } catch (IOException e) {
1522                         System.err.println("Failed to store encrypted message in disk cache, ignoring: " + e.getMessage());
1523                     }
1524                 });
1525                 if (result.isPresent()) {
1526                     envelope = result.get();
1527                 } else {
1528                     // Received indicator that server queue is empty
1529                     hasCaughtUpWithOldMessages = true;
1530
1531                     if (queuedActions != null) {
1532                         for (HandleAction action : queuedActions) {
1533                             try {
1534                                 action.execute(this);
1535                             } catch (Throwable e) {
1536                                 e.printStackTrace();
1537                             }
1538                         }
1539                         account.save();
1540                         queuedActions.clear();
1541                         queuedActions = null;
1542                     }
1543
1544                     // Continue to wait another timeout for new messages
1545                     continue;
1546                 }
1547             } catch (TimeoutException e) {
1548                 if (returnOnTimeout)
1549                     return;
1550                 continue;
1551             } catch (InvalidVersionException e) {
1552                 System.err.println("Ignoring error: " + e.getMessage());
1553                 continue;
1554             }
1555
1556             if (envelope.hasSource()) {
1557                 // Store uuid if we don't have it already
1558                 SignalServiceAddress source = envelope.getSourceAddress();
1559                 resolveSignalServiceAddress(source);
1560             }
1561             if (!envelope.isReceipt()) {
1562                 try {
1563                     content = decryptMessage(envelope);
1564                 } catch (Exception e) {
1565                     exception = e;
1566                 }
1567                 List<HandleAction> actions = handleMessage(envelope, content, ignoreAttachments);
1568                 if (hasCaughtUpWithOldMessages) {
1569                     for (HandleAction action : actions) {
1570                         try {
1571                             action.execute(this);
1572                         } catch (Throwable e) {
1573                             e.printStackTrace();
1574                         }
1575                     }
1576                 } else {
1577                     if (queuedActions == null) {
1578                         queuedActions = new HashSet<>();
1579                     }
1580                     queuedActions.addAll(actions);
1581                 }
1582             }
1583             account.save();
1584             if (!isMessageBlocked(envelope, content)) {
1585                 handler.handleMessage(envelope, content, exception);
1586             }
1587             if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
1588                 File cacheFile = null;
1589                 try {
1590                     String source = envelope.getSourceE164().isPresent() ? envelope.getSourceE164().get() : "";
1591                     cacheFile = getMessageCacheFile(source, now, envelope.getTimestamp());
1592                     Files.delete(cacheFile.toPath());
1593                     // Try to delete directory if empty
1594                     new File(getMessageCachePath()).delete();
1595                 } catch (IOException e) {
1596                     System.err.println("Failed to delete cached message file “" + cacheFile + "”: " + e.getMessage());
1597                 }
1598             }
1599         }
1600     }
1601
1602     private boolean isMessageBlocked(SignalServiceEnvelope envelope, SignalServiceContent content) {
1603         SignalServiceAddress source;
1604         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1605             source = envelope.getSourceAddress();
1606         } else if (content != null) {
1607             source = content.getSender();
1608         } else {
1609             return false;
1610         }
1611         ContactInfo sourceContact = account.getContactStore().getContact(source);
1612         if (sourceContact != null && sourceContact.blocked) {
1613             return true;
1614         }
1615
1616         if (content != null && content.getDataMessage().isPresent()) {
1617             SignalServiceDataMessage message = content.getDataMessage().get();
1618             if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1619                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1620                 GroupInfo group = getGroup(groupInfo.getGroupId());
1621                 return groupInfo.getType() == SignalServiceGroup.Type.DELIVER && group != null && group.isBlocked();
1622             }
1623         }
1624         return false;
1625     }
1626
1627     private List<HandleAction> handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments) {
1628         List<HandleAction> actions = new ArrayList<>();
1629         if (content != null) {
1630             SignalServiceAddress sender;
1631             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1632                 sender = envelope.getSourceAddress();
1633             } else {
1634                 sender = content.getSender();
1635             }
1636             // Store uuid if we don't have it already
1637             resolveSignalServiceAddress(sender);
1638
1639             if (content.getDataMessage().isPresent()) {
1640                 SignalServiceDataMessage message = content.getDataMessage().get();
1641
1642                 if (content.isNeedsReceipt()) {
1643                     actions.add(new SendReceiptAction(sender, message.getTimestamp()));
1644                 }
1645
1646                 actions.addAll(handleSignalServiceDataMessage(message, false, sender, account.getSelfAddress(), ignoreAttachments));
1647             }
1648             if (content.getSyncMessage().isPresent()) {
1649                 account.setMultiDevice(true);
1650                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1651                 if (syncMessage.getSent().isPresent()) {
1652                     SentTranscriptMessage message = syncMessage.getSent().get();
1653                     actions.addAll(handleSignalServiceDataMessage(message.getMessage(), true, sender, message.getDestination().orNull(), ignoreAttachments));
1654                 }
1655                 if (syncMessage.getRequest().isPresent()) {
1656                     RequestMessage rm = syncMessage.getRequest().get();
1657                     if (rm.isContactsRequest()) {
1658                         actions.add(SendSyncContactsAction.create());
1659                     }
1660                     if (rm.isGroupsRequest()) {
1661                         actions.add(SendSyncGroupsAction.create());
1662                     }
1663                     if (rm.isBlockedListRequest()) {
1664                         actions.add(SendSyncBlockedListAction.create());
1665                     }
1666                     // TODO Handle rm.isConfigurationRequest(); rm.isKeysRequest();
1667                 }
1668                 if (syncMessage.getGroups().isPresent()) {
1669                     File tmpFile = null;
1670                     try {
1671                         tmpFile = IOUtils.createTempFile();
1672                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups().get().asPointer(), tmpFile)) {
1673                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1674                             DeviceGroup g;
1675                             while ((g = s.read()) != null) {
1676                                 GroupInfoV1 syncGroup = account.getGroupStore().getOrCreateGroupV1(g.getId());
1677                                 if (syncGroup != null) {
1678                                     if (g.getName().isPresent()) {
1679                                         syncGroup.name = g.getName().get();
1680                                     }
1681                                     syncGroup.addMembers(g.getMembers()
1682                                             .stream()
1683                                             .map(this::resolveSignalServiceAddress)
1684                                             .collect(Collectors.toSet()));
1685                                     if (!g.isActive()) {
1686                                         syncGroup.removeMember(account.getSelfAddress());
1687                                     } else {
1688                                         // Add ourself to the member set as it's marked as active
1689                                         syncGroup.addMembers(Collections.singleton(account.getSelfAddress()));
1690                                     }
1691                                     syncGroup.blocked = g.isBlocked();
1692                                     if (g.getColor().isPresent()) {
1693                                         syncGroup.color = g.getColor().get();
1694                                     }
1695
1696                                     if (g.getAvatar().isPresent()) {
1697                                         retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId);
1698                                     }
1699                                     syncGroup.inboxPosition = g.getInboxPosition().orNull();
1700                                     syncGroup.archived = g.isArchived();
1701                                     account.getGroupStore().updateGroup(syncGroup);
1702                                 }
1703                             }
1704                         }
1705                     } catch (Exception e) {
1706                         e.printStackTrace();
1707                     } finally {
1708                         if (tmpFile != null) {
1709                             try {
1710                                 Files.delete(tmpFile.toPath());
1711                             } catch (IOException e) {
1712                                 System.err.println("Failed to delete received groups temp file “" + tmpFile + "”: " + e.getMessage());
1713                             }
1714                         }
1715                     }
1716                 }
1717                 if (syncMessage.getBlockedList().isPresent()) {
1718                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1719                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1720                         setContactBlocked(resolveSignalServiceAddress(address), true);
1721                     }
1722                     for (byte[] groupId : blockedListMessage.getGroupIds()) {
1723                         try {
1724                             setGroupBlocked(groupId, true);
1725                         } catch (GroupNotFoundException e) {
1726                             System.err.println("BlockedListMessage contained groupID that was not found in GroupStore: " + Base64.encodeBytes(groupId));
1727                         }
1728                     }
1729                 }
1730                 if (syncMessage.getContacts().isPresent()) {
1731                     File tmpFile = null;
1732                     try {
1733                         tmpFile = IOUtils.createTempFile();
1734                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1735                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream().asPointer(), tmpFile)) {
1736                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1737                             if (contactsMessage.isComplete()) {
1738                                 account.getContactStore().clear();
1739                             }
1740                             DeviceContact c;
1741                             while ((c = s.read()) != null) {
1742                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
1743                                     account.setProfileKey(c.getProfileKey().get());
1744                                 }
1745                                 final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
1746                                 ContactInfo contact = account.getContactStore().getContact(address);
1747                                 if (contact == null) {
1748                                     contact = new ContactInfo(address);
1749                                 }
1750                                 if (c.getName().isPresent()) {
1751                                     contact.name = c.getName().get();
1752                                 }
1753                                 if (c.getColor().isPresent()) {
1754                                     contact.color = c.getColor().get();
1755                                 }
1756                                 if (c.getProfileKey().isPresent()) {
1757                                     account.getProfileStore().storeProfileKey(address, c.getProfileKey().get());
1758                                 }
1759                                 if (c.getVerified().isPresent()) {
1760                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
1761                                     account.getSignalProtocolStore().setIdentityTrustLevel(verifiedMessage.getDestination(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1762                                 }
1763                                 if (c.getExpirationTimer().isPresent()) {
1764                                     contact.messageExpirationTime = c.getExpirationTimer().get();
1765                                 }
1766                                 contact.blocked = c.isBlocked();
1767                                 contact.inboxPosition = c.getInboxPosition().orNull();
1768                                 contact.archived = c.isArchived();
1769                                 account.getContactStore().updateContact(contact);
1770
1771                                 if (c.getAvatar().isPresent()) {
1772                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
1773                                 }
1774                             }
1775                         }
1776                     } catch (Exception e) {
1777                         e.printStackTrace();
1778                     } finally {
1779                         if (tmpFile != null) {
1780                             try {
1781                                 Files.delete(tmpFile.toPath());
1782                             } catch (IOException e) {
1783                                 System.err.println("Failed to delete received contacts temp file “" + tmpFile + "”: " + e.getMessage());
1784                             }
1785                         }
1786                     }
1787                 }
1788                 if (syncMessage.getVerified().isPresent()) {
1789                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
1790                     account.getSignalProtocolStore().setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1791                 }
1792                 if (syncMessage.getStickerPackOperations().isPresent()) {
1793                     final List<StickerPackOperationMessage> stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
1794                     for (StickerPackOperationMessage m : stickerPackOperationMessages) {
1795                         if (!m.getPackId().isPresent()) {
1796                             continue;
1797                         }
1798                         Sticker sticker = account.getStickerStore().getSticker(m.getPackId().get());
1799                         if (sticker == null) {
1800                             if (!m.getPackKey().isPresent()) {
1801                                 continue;
1802                             }
1803                             sticker = new Sticker(m.getPackId().get(), m.getPackKey().get());
1804                         }
1805                         sticker.setInstalled(!m.getType().isPresent() || m.getType().get() == StickerPackOperationMessage.Type.INSTALL);
1806                         account.getStickerStore().updateSticker(sticker);
1807                     }
1808                 }
1809                 if (syncMessage.getConfiguration().isPresent()) {
1810                     // TODO
1811                 }
1812             }
1813         }
1814         return actions;
1815     }
1816
1817     private File getContactAvatarFile(String number) {
1818         return new File(pathConfig.getAvatarsPath(), "contact-" + number);
1819     }
1820
1821     private File retrieveContactAvatarAttachment(SignalServiceAttachment attachment, String number) throws IOException, InvalidMessageException, MissingConfigurationException {
1822         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1823         if (attachment.isPointer()) {
1824             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1825             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
1826         } else {
1827             SignalServiceAttachmentStream stream = attachment.asStream();
1828             return Utils.retrieveAttachment(stream, getContactAvatarFile(number));
1829         }
1830     }
1831
1832     private File getGroupAvatarFile(byte[] groupId) {
1833         return new File(pathConfig.getAvatarsPath(), "group-" + Base64.encodeBytes(groupId).replace("/", "_"));
1834     }
1835
1836     private File retrieveGroupAvatarAttachment(SignalServiceAttachment attachment, byte[] groupId) throws IOException, InvalidMessageException, MissingConfigurationException {
1837         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1838         if (attachment.isPointer()) {
1839             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1840             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
1841         } else {
1842             SignalServiceAttachmentStream stream = attachment.asStream();
1843             return Utils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
1844         }
1845     }
1846
1847     private File getProfileAvatarFile(SignalServiceAddress address) {
1848         return new File(pathConfig.getAvatarsPath(), "profile-" + address.getLegacyIdentifier());
1849     }
1850
1851     private File retrieveProfileAvatar(SignalServiceAddress address, String avatarPath, ProfileKey profileKey) throws IOException {
1852         IOUtils.createPrivateDirectories(pathConfig.getAvatarsPath());
1853         SignalServiceMessageReceiver receiver = getMessageReceiver();
1854         File outputFile = getProfileAvatarFile(address);
1855
1856         File tmpFile = IOUtils.createTempFile();
1857         try (InputStream input = receiver.retrieveProfileAvatar(avatarPath, tmpFile, profileKey, ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
1858             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
1859             IOUtils.copyStreamToFile(input, outputFile, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
1860         } finally {
1861             try {
1862                 Files.delete(tmpFile.toPath());
1863             } catch (IOException e) {
1864                 System.err.println("Failed to delete received avatar temp file “" + tmpFile + "”: " + e.getMessage());
1865             }
1866         }
1867         return outputFile;
1868     }
1869
1870     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
1871         return new File(pathConfig.getAttachmentsPath(), attachmentId.toString());
1872     }
1873
1874     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException, MissingConfigurationException {
1875         IOUtils.createPrivateDirectories(pathConfig.getAttachmentsPath());
1876         return retrieveAttachment(pointer, getAttachmentFile(pointer.getRemoteId()), true);
1877     }
1878
1879     private File retrieveAttachment(SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview) throws IOException, InvalidMessageException, MissingConfigurationException {
1880         if (storePreview && pointer.getPreview().isPresent()) {
1881             File previewFile = new File(outputFile + ".preview");
1882             try (OutputStream output = new FileOutputStream(previewFile)) {
1883                 byte[] preview = pointer.getPreview().get();
1884                 output.write(preview, 0, preview.length);
1885             } catch (FileNotFoundException e) {
1886                 e.printStackTrace();
1887                 return null;
1888             }
1889         }
1890
1891         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1892
1893         File tmpFile = IOUtils.createTempFile();
1894         try (InputStream input = messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE)) {
1895             IOUtils.copyStreamToFile(input, outputFile);
1896         } finally {
1897             try {
1898                 Files.delete(tmpFile.toPath());
1899             } catch (IOException e) {
1900                 System.err.println("Failed to delete received attachment temp file “" + tmpFile + "”: " + e.getMessage());
1901             }
1902         }
1903         return outputFile;
1904     }
1905
1906     private InputStream retrieveAttachmentAsStream(SignalServiceAttachmentPointer pointer, File tmpFile) throws IOException, InvalidMessageException, MissingConfigurationException {
1907         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1908         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
1909     }
1910
1911     void sendGroups() throws IOException, UntrustedIdentityException {
1912         File groupsFile = IOUtils.createTempFile();
1913
1914         try {
1915             try (OutputStream fos = new FileOutputStream(groupsFile)) {
1916                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
1917                 for (GroupInfo record : account.getGroupStore().getGroups()) {
1918                     if (record instanceof GroupInfoV1) {
1919                         GroupInfoV1 groupInfo = (GroupInfoV1) record;
1920                         out.write(new DeviceGroup(groupInfo.groupId, Optional.fromNullable(groupInfo.name),
1921                                 new ArrayList<>(groupInfo.getMembers()), createGroupAvatarAttachment(groupInfo.groupId),
1922                                 groupInfo.isMember(account.getSelfAddress()), Optional.of(groupInfo.messageExpirationTime),
1923                                 Optional.fromNullable(groupInfo.color), groupInfo.blocked, Optional.fromNullable(groupInfo.inboxPosition), groupInfo.archived));
1924                     }
1925                 }
1926             }
1927
1928             if (groupsFile.exists() && groupsFile.length() > 0) {
1929                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
1930                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1931                             .withStream(groupsFileStream)
1932                             .withContentType("application/octet-stream")
1933                             .withLength(groupsFile.length())
1934                             .build();
1935
1936                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
1937                 }
1938             }
1939         } finally {
1940             try {
1941                 Files.delete(groupsFile.toPath());
1942             } catch (IOException e) {
1943                 System.err.println("Failed to delete groups temp file “" + groupsFile + "”: " + e.getMessage());
1944             }
1945         }
1946     }
1947
1948     public void sendContacts() throws IOException, UntrustedIdentityException {
1949         File contactsFile = IOUtils.createTempFile();
1950
1951         try {
1952             try (OutputStream fos = new FileOutputStream(contactsFile)) {
1953                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
1954                 for (ContactInfo record : account.getContactStore().getContacts()) {
1955                     VerifiedMessage verifiedMessage = null;
1956                     JsonIdentityKeyStore.Identity currentIdentity = account.getSignalProtocolStore().getIdentity(record.getAddress());
1957                     if (currentIdentity != null) {
1958                         verifiedMessage = new VerifiedMessage(record.getAddress(), currentIdentity.getIdentityKey(), currentIdentity.getTrustLevel().toVerifiedState(), currentIdentity.getDateAdded().getTime());
1959                     }
1960
1961                     ProfileKey profileKey = account.getProfileStore().getProfileKey(record.getAddress());
1962                     out.write(new DeviceContact(record.getAddress(), Optional.fromNullable(record.name),
1963                             createContactAvatarAttachment(record.number), Optional.fromNullable(record.color),
1964                             Optional.fromNullable(verifiedMessage), Optional.fromNullable(profileKey), record.blocked,
1965                             Optional.of(record.messageExpirationTime),
1966                             Optional.fromNullable(record.inboxPosition), record.archived));
1967                 }
1968
1969                 if (account.getProfileKey() != null) {
1970                     // Send our own profile key as well
1971                     out.write(new DeviceContact(account.getSelfAddress(),
1972                             Optional.absent(), Optional.absent(),
1973                             Optional.absent(), Optional.absent(),
1974                             Optional.of(account.getProfileKey()),
1975                             false, Optional.absent(), Optional.absent(), false));
1976                 }
1977             }
1978
1979             if (contactsFile.exists() && contactsFile.length() > 0) {
1980                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
1981                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1982                             .withStream(contactsFileStream)
1983                             .withContentType("application/octet-stream")
1984                             .withLength(contactsFile.length())
1985                             .build();
1986
1987                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
1988                 }
1989             }
1990         } finally {
1991             try {
1992                 Files.delete(contactsFile.toPath());
1993             } catch (IOException e) {
1994                 System.err.println("Failed to delete contacts temp file “" + contactsFile + "”: " + e.getMessage());
1995             }
1996         }
1997     }
1998
1999     void sendBlockedList() throws IOException, UntrustedIdentityException {
2000         List<SignalServiceAddress> addresses = new ArrayList<>();
2001         for (ContactInfo record : account.getContactStore().getContacts()) {
2002             if (record.blocked) {
2003                 addresses.add(record.getAddress());
2004             }
2005         }
2006         List<byte[]> groupIds = new ArrayList<>();
2007         for (GroupInfo record : account.getGroupStore().getGroups()) {
2008             if (record.isBlocked()) {
2009                 groupIds.add(record.groupId);
2010             }
2011         }
2012         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
2013     }
2014
2015     private void sendVerifiedMessage(SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel) throws IOException, UntrustedIdentityException {
2016         VerifiedMessage verifiedMessage = new VerifiedMessage(destination, identityKey, trustLevel.toVerifiedState(), System.currentTimeMillis());
2017         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
2018     }
2019
2020     public List<ContactInfo> getContacts() {
2021         return account.getContactStore().getContacts();
2022     }
2023
2024     public ContactInfo getContact(String number) {
2025         return account.getContactStore().getContact(Util.getSignalServiceAddressFromIdentifier(number));
2026     }
2027
2028     public GroupInfo getGroup(byte[] groupId) {
2029         return account.getGroupStore().getGroup(groupId);
2030     }
2031
2032     public byte[] getGroupId(GroupMasterKey groupMasterKey) {
2033         final GroupSecretParams groupSecretParams = GroupSecretParams.deriveFromMasterKey(groupMasterKey);
2034         return groupSecretParams.getPublicParams().getGroupIdentifier().serialize();
2035     }
2036
2037     public List<JsonIdentityKeyStore.Identity> getIdentities() {
2038         return account.getSignalProtocolStore().getIdentities();
2039     }
2040
2041     public List<JsonIdentityKeyStore.Identity> getIdentities(String number) throws InvalidNumberException {
2042         return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));
2043     }
2044
2045     /**
2046      * Trust this the identity with this fingerprint
2047      *
2048      * @param name        username of the identity
2049      * @param fingerprint Fingerprint
2050      */
2051     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
2052         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2053         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2054         if (ids == null) {
2055             return false;
2056         }
2057         for (JsonIdentityKeyStore.Identity id : ids) {
2058             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
2059                 continue;
2060             }
2061
2062             account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2063             try {
2064                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2065             } catch (IOException | UntrustedIdentityException e) {
2066                 e.printStackTrace();
2067             }
2068             account.save();
2069             return true;
2070         }
2071         return false;
2072     }
2073
2074     /**
2075      * Trust this the identity with this safety number
2076      *
2077      * @param name         username of the identity
2078      * @param safetyNumber Safety number
2079      */
2080     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2081         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2082         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2083         if (ids == null) {
2084             return false;
2085         }
2086         for (JsonIdentityKeyStore.Identity id : ids) {
2087             if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {
2088                 continue;
2089             }
2090
2091             account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2092             try {
2093                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2094             } catch (IOException | UntrustedIdentityException e) {
2095                 e.printStackTrace();
2096             }
2097             account.save();
2098             return true;
2099         }
2100         return false;
2101     }
2102
2103     /**
2104      * Trust all keys of this identity without verification
2105      *
2106      * @param name username of the identity
2107      */
2108     public boolean trustIdentityAllKeys(String name) {
2109         SignalServiceAddress address = resolveSignalServiceAddress(name);
2110         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2111         if (ids == null) {
2112             return false;
2113         }
2114         for (JsonIdentityKeyStore.Identity id : ids) {
2115             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2116                 account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2117                 try {
2118                     sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2119                 } catch (IOException | UntrustedIdentityException e) {
2120                     e.printStackTrace();
2121                 }
2122             }
2123         }
2124         account.save();
2125         return true;
2126     }
2127
2128     public String computeSafetyNumber(SignalServiceAddress theirAddress, IdentityKey theirIdentityKey) {
2129         return Utils.computeSafetyNumber(account.getSelfAddress(), getIdentityKeyPair().getPublicKey(), theirAddress, theirIdentityKey);
2130     }
2131
2132     void saveAccount() {
2133         account.save();
2134     }
2135
2136     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2137         String canonicalizedNumber = UuidUtil.isUuid(identifier) ? identifier : Util.canonicalizeNumber(identifier, account.getUsername());
2138         return resolveSignalServiceAddress(canonicalizedNumber);
2139     }
2140
2141     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2142         SignalServiceAddress address = Util.getSignalServiceAddressFromIdentifier(identifier);
2143
2144         return resolveSignalServiceAddress(address);
2145     }
2146
2147     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2148         if (address.matches(account.getSelfAddress())) {
2149             return account.getSelfAddress();
2150         }
2151
2152         return account.getRecipientStore().resolveServiceAddress(address);
2153     }
2154
2155     @Override
2156     public void close() throws IOException {
2157         if (messagePipe != null) {
2158             messagePipe.shutdown();
2159             messagePipe = null;
2160         }
2161
2162         if (unidentifiedMessagePipe != null) {
2163             unidentifiedMessagePipe.shutdown();
2164             unidentifiedMessagePipe = null;
2165         }
2166
2167         account.close();
2168     }
2169
2170     public interface ReceiveMessageHandler {
2171
2172         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2173     }
2174 }