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;
  22 import org.asamk.signal.AttachmentInvalidException;
  23 import org.asamk.signal.GroupNotFoundException;
  24 import org.asamk.signal.NotAGroupMemberException;
  25 import org.asamk.signal.StickerPackInvalidException;
  26 import org.asamk.signal.TrustLevel;
  27 import org.asamk.signal.UserAlreadyExists;
  28 import org.asamk.signal.storage.SignalAccount;
  29 import org.asamk.signal.storage.contacts.ContactInfo;
  30 import org.asamk.signal.storage.groups.GroupInfo;
  31 import org.asamk.signal.storage.groups.JsonGroupStore;
  32 import org.asamk.signal.storage.protocol.JsonIdentityKeyStore;
  33 import org.asamk.signal.util.IOUtils;
  34 import org.asamk.signal.util.Util;
  35 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  36 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  37 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  38 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  39 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  40 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  41 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  42 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  43 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  44 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  45 import org.signal.libsignal.metadata.SelfSendException;
  46 import org.signal.libsignal.metadata.certificate.InvalidCertificateException;
  47 import org.signal.zkgroup.InvalidInputException;
  48 import org.signal.zkgroup.VerificationFailedException;
  49 import org.signal.zkgroup.profiles.ClientZkProfileOperations;
  50 import org.signal.zkgroup.profiles.ProfileKey;
  51 import org.whispersystems.libsignal.IdentityKey;
  52 import org.whispersystems.libsignal.IdentityKeyPair;
  53 import org.whispersystems.libsignal.InvalidKeyException;
  54 import org.whispersystems.libsignal.InvalidMessageException;
  55 import org.whispersystems.libsignal.InvalidVersionException;
  56 import org.whispersystems.libsignal.ecc.Curve;
  57 import org.whispersystems.libsignal.ecc.ECKeyPair;
  58 import org.whispersystems.libsignal.ecc.ECPublicKey;
  59 import org.whispersystems.libsignal.state.PreKeyRecord;
  60 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  61 import org.whispersystems.libsignal.util.KeyHelper;
  62 import org.whispersystems.libsignal.util.Medium;
  63 import org.whispersystems.libsignal.util.Pair;
  64 import org.whispersystems.libsignal.util.guava.Optional;
  65 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  66 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  67 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  68 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  69 import org.whispersystems.signalservice.api.crypto.InvalidCiphertextException;
  70 import org.whispersystems.signalservice.api.crypto.ProfileCipher;
  71 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  72 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccess;
  73 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
  74 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  75 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  76 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  77 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  78 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentRemoteId;
  79 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentStream;
  80 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
  81 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  82 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
  83 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
  84 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
  85 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload;
  86 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifestUpload.StickerInfo;
  87 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
  88 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
  89 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
  90 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
  91 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
  92 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
  93 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
  94 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
  95 import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
  96 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
  97 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
  98 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
  99 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
 100 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 101 import org.whispersystems.signalservice.api.push.ContactTokenDetails;
 102 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 103 import org.whispersystems.signalservice.api.push.exceptions.EncapsulatedExceptions;
 104 import org.whispersystems.signalservice.api.push.exceptions.MissingConfigurationException;
 105 import org.whispersystems.signalservice.api.push.exceptions.NetworkFailureException;
 106 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 107 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 108 import org.whispersystems.signalservice.api.util.SleepTimer;
 109 import org.whispersystems.signalservice.api.util.StreamDetails;
 110 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 111 import org.whispersystems.signalservice.api.util.UuidUtil;
 112 import org.whispersystems.signalservice.internal.configuration.SignalServiceConfiguration;
 113 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 114 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 115 import org.whispersystems.signalservice.internal.push.VerifyAccountResponse;
 116 import org.whispersystems.signalservice.internal.util.Hex;
 117 import org.whispersystems.util.Base64;
 118
 119 import java.io.File;
 120 import java.io.FileInputStream;
 121 import java.io.FileNotFoundException;
 122 import java.io.FileOutputStream;
 123 import java.io.IOException;
 124 import java.io.InputStream;
 125 import java.io.OutputStream;
 126 import java.net.URI;
 127 import java.net.URISyntaxException;
 128 import java.net.URLEncoder;
 129 import java.nio.file.Files;
 130 import java.nio.file.Paths;
 131 import java.nio.file.StandardCopyOption;
 132 import java.util.ArrayList;
 133 import java.util.Arrays;
 134 import java.util.Collection;
 135 import java.util.Collections;
 136 import java.util.Date;
 137 import java.util.HashSet;
 138 import java.util.LinkedList;
 139 import java.util.List;
 140 import java.util.Locale;
 141 import java.util.Objects;
 142 import java.util.Set;
 143 import java.util.UUID;
 144 import java.util.concurrent.TimeUnit;
 145 import java.util.concurrent.TimeoutException;
 146 import java.util.stream.Collectors;
 147 import java.util.zip.ZipEntry;
 148 import java.util.zip.ZipFile;
 149
 150 public class Manager implements Signal {
 151
 152     private final String settingsPath;
 153     private final String dataPath;
 154     private final String attachmentsPath;
 155     private final String avatarsPath;
 156     private final SleepTimer timer = new UptimeSleepTimer();
 157     private final SignalServiceConfiguration serviceConfiguration;
 158     private final String userAgent;
 159
 160     private SignalAccount account;
 161     private String username;
 162     private SignalServiceAccountManager accountManager;
 163     private SignalServiceMessagePipe messagePipe = null;
 164     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 165
 166     public Manager(String username, String settingsPath, SignalServiceConfiguration serviceConfiguration, String userAgent) {
 167         this.username = username;
 168         this.settingsPath = settingsPath;
 169         this.dataPath = this.settingsPath + "/data";
 170         this.attachmentsPath = this.settingsPath + "/attachments";
 171         this.avatarsPath = this.settingsPath + "/avatars";
 172         this.serviceConfiguration = serviceConfiguration;
 173         this.userAgent = userAgent;
 174     }
 175
 176     public String getUsername() {
 177         return username;
 178     }
 179
 180     public SignalServiceAddress getSelfAddress() {
 181         return account.getSelfAddress();
 182     }
 183
 184     private SignalServiceAccountManager getSignalServiceAccountManager() {
 185         return new SignalServiceAccountManager(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(), account.getDeviceId(), userAgent, timer);
 186     }
 187
 188     private IdentityKey getIdentity() {
 189         return account.getSignalProtocolStore().getIdentityKeyPair().getPublicKey();
 190     }
 191
 192     public int getDeviceId() {
 193         return account.getDeviceId();
 194     }
 195
 196     private String getMessageCachePath() {
 197         return this.dataPath + "/" + username + ".d/msg-cache";
 198     }
 199
 200     private String getMessageCachePath(String sender) {
 201         if (sender == null || sender.isEmpty()) {
 202             return getMessageCachePath();
 203         }
 204
 205         return getMessageCachePath() + "/" + sender.replace("/", "_");
 206     }
 207
 208     private File getMessageCacheFile(String sender, long now, long timestamp) throws IOException {
 209         String cachePath = getMessageCachePath(sender);
 210         IOUtils.createPrivateDirectories(cachePath);
 211         return new File(cachePath + "/" + now + "_" + timestamp);
 212     }
 213
 214     public boolean userHasKeys() {
 215         return account != null && account.getSignalProtocolStore() != null;
 216     }
 217
 218     public void init() throws IOException {
 219         if (!SignalAccount.userExists(dataPath, username)) {
 220             return;
 221         }
 222         account = SignalAccount.load(dataPath, username);
 223         account.setResolver(this::resolveSignalServiceAddress);
 224
 225         migrateLegacyConfigs();
 226
 227         accountManager = getSignalServiceAccountManager();
 228         if (account.isRegistered()) {
 229             if (accountManager.getPreKeysCount() < ServiceConfig.PREKEY_MINIMUM_COUNT) {
 230                 refreshPreKeys();
 231                 account.save();
 232             }
 233             if (account.getUuid() == null) {
 234                 account.setUuid(accountManager.getOwnUuid());
 235                 account.save();
 236             }
 237         }
 238     }
 239
 240     private void migrateLegacyConfigs() {
 241         // Copy group avatars that were previously stored in the attachments folder
 242         // to the new avatar folder
 243         if (JsonGroupStore.groupsWithLegacyAvatarId.size() > 0) {
 244             for (GroupInfo g : JsonGroupStore.groupsWithLegacyAvatarId) {
 245                 File avatarFile = getGroupAvatarFile(g.groupId);
 246                 File attachmentFile = getAttachmentFile(new SignalServiceAttachmentRemoteId(g.getAvatarId()));
 247                 if (!avatarFile.exists() && attachmentFile.exists()) {
 248                     try {
 249                         IOUtils.createPrivateDirectories(avatarsPath);
 250                         Files.copy(attachmentFile.toPath(), avatarFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 251                     } catch (Exception e) {
 252                         // Ignore
 253                     }
 254                 }
 255             }
 256             JsonGroupStore.groupsWithLegacyAvatarId.clear();
 257             account.save();
 258         }
 259         if (account.getProfileKey() == null) {
 260             // Old config file, creating new profile key
 261             account.setProfileKey(KeyUtils.createProfileKey());
 262             account.save();
 263         }
 264     }
 265
 266     private void createNewIdentity() throws IOException {
 267         IdentityKeyPair identityKey = KeyHelper.generateIdentityKeyPair();
 268         int registrationId = KeyHelper.generateRegistrationId(false);
 269         if (username == null) {
 270             account = SignalAccount.createTemporaryAccount(identityKey, registrationId);
 271             account.setResolver(this::resolveSignalServiceAddress);
 272         } else {
 273             ProfileKey profileKey = KeyUtils.createProfileKey();
 274             account = SignalAccount.create(dataPath, username, identityKey, registrationId, profileKey);
 275             account.setResolver(this::resolveSignalServiceAddress);
 276             account.save();
 277         }
 278     }
 279
 280     public boolean isRegistered() {
 281         return account != null && account.isRegistered();
 282     }
 283
 284     public void register(boolean voiceVerification) throws IOException {
 285         if (account == null) {
 286             createNewIdentity();
 287         }
 288         account.setPassword(KeyUtils.createPassword());
 289         account.setUuid(null);
 290         accountManager = getSignalServiceAccountManager();
 291
 292         if (voiceVerification) {
 293             accountManager.requestVoiceVerificationCode(Locale.getDefault(), Optional.absent(), Optional.absent());
 294         } else {
 295             accountManager.requestSmsVerificationCode(false, Optional.absent(), Optional.absent());
 296         }
 297
 298         account.setRegistered(false);
 299         account.save();
 300     }
 301
 302     public void updateAccountAttributes() throws IOException {
 303         accountManager.setAccountAttributes(account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, account.getRegistrationLockPin(), account.getRegistrationLock(), getSelfUnidentifiedAccessKey(), false, ServiceConfig.capabilities);
 304     }
 305
 306     public void setProfileName(String name) throws IOException {
 307         accountManager.setProfileName(account.getProfileKey(), name);
 308     }
 309
 310     public void setProfileAvatar(File avatar) throws IOException {
 311         final StreamDetails streamDetails = Utils.createStreamDetailsFromFile(avatar);
 312         accountManager.setProfileAvatar(account.getProfileKey(), streamDetails);
 313         streamDetails.getStream().close();
 314     }
 315
 316     public void removeProfileAvatar() throws IOException {
 317         accountManager.setProfileAvatar(account.getProfileKey(), null);
 318     }
 319
 320     public void unregister() throws IOException {
 321         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 322         // If this is the master device, other users can't send messages to this number anymore.
 323         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 324         accountManager.setGcmId(Optional.absent());
 325
 326         account.setRegistered(false);
 327         account.save();
 328     }
 329
 330     public String getDeviceLinkUri() throws TimeoutException, IOException {
 331         if (account == null) {
 332             createNewIdentity();
 333         }
 334         account.setPassword(KeyUtils.createPassword());
 335         accountManager = getSignalServiceAccountManager();
 336         String uuid = accountManager.getNewDeviceUuid();
 337
 338         return Utils.createDeviceLinkUri(new Utils.DeviceLinkInfo(uuid, getIdentity().getPublicKey()));
 339     }
 340
 341     public void finishDeviceLink(String deviceName) throws IOException, InvalidKeyException, TimeoutException, UserAlreadyExists {
 342         account.setSignalingKey(KeyUtils.createSignalingKey());
 343         SignalServiceAccountManager.NewDeviceRegistrationReturn ret = accountManager.finishNewDeviceRegistration(account.getSignalProtocolStore().getIdentityKeyPair(), account.getSignalingKey(), false, true, account.getSignalProtocolStore().getLocalRegistrationId(), deviceName);
 344
 345         username = ret.getNumber();
 346         // TODO do this check before actually registering
 347         if (SignalAccount.userExists(dataPath, username)) {
 348             throw new UserAlreadyExists(username, SignalAccount.getFileName(dataPath, username));
 349         }
 350
 351         // Create new account with the synced identity
 352         byte[] profileKeyBytes = ret.getProfileKey();
 353         ProfileKey profileKey;
 354         if (profileKeyBytes == null) {
 355             profileKey = KeyUtils.createProfileKey();
 356         } else {
 357             try {
 358                 profileKey = new ProfileKey(profileKeyBytes);
 359             } catch (InvalidInputException e) {
 360                 throw new IOException("Received invalid profileKey", e);
 361             }
 362         }
 363         account = SignalAccount.createLinkedAccount(dataPath, username, ret.getUuid(), account.getPassword(), ret.getDeviceId(), ret.getIdentity(), account.getSignalProtocolStore().getLocalRegistrationId(), account.getSignalingKey(), profileKey);
 364         account.setResolver(this::resolveSignalServiceAddress);
 365
 366         refreshPreKeys();
 367
 368         requestSyncGroups();
 369         requestSyncContacts();
 370         requestSyncBlocked();
 371         requestSyncConfiguration();
 372
 373         account.save();
 374     }
 375
 376     public List<DeviceInfo> getLinkedDevices() throws IOException {
 377         List<DeviceInfo> devices = accountManager.getDevices();
 378         account.setMultiDevice(devices.size() > 1);
 379         account.save();
 380         return devices;
 381     }
 382
 383     public void removeLinkedDevices(int deviceId) throws IOException {
 384         accountManager.removeDevice(deviceId);
 385         List<DeviceInfo> devices = accountManager.getDevices();
 386         account.setMultiDevice(devices.size() > 1);
 387         account.save();
 388     }
 389
 390     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 391         Utils.DeviceLinkInfo info = Utils.parseDeviceLinkUri(linkUri);
 392
 393         addDevice(info.deviceIdentifier, info.deviceKey);
 394     }
 395
 396     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 397         IdentityKeyPair identityKeyPair = account.getSignalProtocolStore().getIdentityKeyPair();
 398         String verificationCode = accountManager.getNewDeviceVerificationCode();
 399
 400         accountManager.addDevice(deviceIdentifier, deviceKey, identityKeyPair, Optional.of(account.getProfileKey().serialize()), verificationCode);
 401         account.setMultiDevice(true);
 402         account.save();
 403     }
 404
 405     private List<PreKeyRecord> generatePreKeys() {
 406         List<PreKeyRecord> records = new ArrayList<>(ServiceConfig.PREKEY_BATCH_SIZE);
 407
 408         final int offset = account.getPreKeyIdOffset();
 409         for (int i = 0; i < ServiceConfig.PREKEY_BATCH_SIZE; i++) {
 410             int preKeyId = (offset + i) % Medium.MAX_VALUE;
 411             ECKeyPair keyPair = Curve.generateKeyPair();
 412             PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);
 413
 414             records.add(record);
 415         }
 416
 417         account.addPreKeys(records);
 418         account.save();
 419
 420         return records;
 421     }
 422
 423     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 424         try {
 425             ECKeyPair keyPair = Curve.generateKeyPair();
 426             byte[] signature = Curve.calculateSignature(identityKeyPair.getPrivateKey(), keyPair.getPublicKey().serialize());
 427             SignedPreKeyRecord record = new SignedPreKeyRecord(account.getNextSignedPreKeyId(), System.currentTimeMillis(), keyPair, signature);
 428
 429             account.addSignedPreKey(record);
 430             account.save();
 431
 432             return record;
 433         } catch (InvalidKeyException e) {
 434             throw new AssertionError(e);
 435         }
 436     }
 437
 438     public void verifyAccount(String verificationCode, String pin) throws IOException {
 439         verificationCode = verificationCode.replace("-", "");
 440         account.setSignalingKey(KeyUtils.createSignalingKey());
 441         // TODO make unrestricted unidentified access configurable
 442         VerifyAccountResponse response = accountManager.verifyAccountWithCode(verificationCode, account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, pin, null, getSelfUnidentifiedAccessKey(), false, ServiceConfig.capabilities);
 443
 444         UUID uuid = UuidUtil.parseOrNull(response.getUuid());
 445         // TODO response.isStorageCapable()
 446         //accountManager.setGcmId(Optional.of(GoogleCloudMessaging.getInstance(this).register(REGISTRATION_ID)));
 447         account.setRegistered(true);
 448         account.setUuid(uuid);
 449         account.setRegistrationLockPin(pin);
 450         account.getSignalProtocolStore().saveIdentity(account.getSelfAddress(), account.getSignalProtocolStore().getIdentityKeyPair().getPublicKey(), TrustLevel.TRUSTED_VERIFIED);
 451
 452         refreshPreKeys();
 453         account.save();
 454     }
 455
 456     public void setRegistrationLockPin(Optional<String> pin) throws IOException {
 457         if (pin.isPresent()) {
 458             account.setRegistrationLockPin(pin.get());
 459             throw new RuntimeException("Not implemented anymore, will be replaced with KBS");
 460         } else {
 461             account.setRegistrationLockPin(null);
 462             accountManager.removeRegistrationLockV1();
 463         }
 464         account.save();
 465     }
 466
 467     private void refreshPreKeys() throws IOException {
 468         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 469         final IdentityKeyPair identityKeyPair = account.getSignalProtocolStore().getIdentityKeyPair();
 470         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 471
 472         accountManager.setPreKeys(getIdentity(), signedPreKeyRecord, oneTimePreKeys);
 473     }
 474
 475     private SignalServiceMessageReceiver getMessageReceiver() {
 476         // TODO implement ZkGroup support
 477         final ClientZkProfileOperations clientZkProfileOperations = null;
 478         return new SignalServiceMessageReceiver(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(), account.getDeviceId(), account.getSignalingKey(), userAgent, null, timer, clientZkProfileOperations);
 479     }
 480
 481     private SignalServiceMessageSender getMessageSender() {
 482         // TODO implement ZkGroup support
 483         final ClientZkProfileOperations clientZkProfileOperations = null;
 484         final boolean attachmentsV3 = false;
 485         return new SignalServiceMessageSender(serviceConfiguration, account.getUuid(), account.getUsername(), account.getPassword(),
 486                 account.getDeviceId(), account.getSignalProtocolStore(), userAgent, account.isMultiDevice(), attachmentsV3, Optional.fromNullable(messagePipe), Optional.fromNullable(unidentifiedMessagePipe), Optional.absent(), clientZkProfileOperations);
 487     }
 488
 489     private SignalServiceProfile getRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess) throws IOException {
 490         SignalServiceMessagePipe pipe = unidentifiedMessagePipe != null && unidentifiedAccess.isPresent() ? unidentifiedMessagePipe
 491                 : messagePipe;
 492
 493         if (pipe != null) {
 494             try {
 495                 return pipe.getProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).getProfile();
 496             } catch (IOException ignored) {
 497             }
 498         }
 499
 500         SignalServiceMessageReceiver receiver = getMessageReceiver();
 501         try {
 502             return receiver.retrieveProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).getProfile();
 503         } catch (VerificationFailedException e) {
 504             throw new AssertionError(e);
 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.name);
 533         }
 534         return g;
 535     }
 536
 537     public List<GroupInfo> getGroups() {
 538         return account.getGroupStore().getGroups();
 539     }
 540
 541     @Override
 542     public long sendGroupMessage(String messageText, List<String> attachments,
 543                                  byte[] groupId)
 544             throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 545         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 546         if (attachments != null) {
 547             messageBuilder.withAttachments(Utils.getSignalServiceAttachments(attachments));
 548         }
 549         if (groupId != null) {
 550             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 551                     .withId(groupId)
 552                     .build();
 553             messageBuilder.asGroupMessage(group);
 554         }
 555
 556         final GroupInfo g = getGroupForSending(groupId);
 557
 558         messageBuilder.withExpiration(g.messageExpirationTime);
 559
 560         return sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 561     }
 562
 563     public void sendGroupMessageReaction(String emoji, boolean remove, String targetAuthor,
 564                                          long targetSentTimestamp, byte[] groupId)
 565             throws IOException, EncapsulatedExceptions, AttachmentInvalidException, InvalidNumberException {
 566         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, canonicalizeAndResolveSignalServiceAddress(targetAuthor), targetSentTimestamp);
 567         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 568                 .withReaction(reaction);
 569         if (groupId != null) {
 570             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 571                     .withId(groupId)
 572                     .build();
 573             messageBuilder.asGroupMessage(group);
 574         }
 575         final GroupInfo g = getGroupForSending(groupId);
 576         sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 577     }
 578
 579     public void sendQuitGroupMessage(byte[] groupId) throws GroupNotFoundException, IOException, EncapsulatedExceptions {
 580         SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 581                 .withId(groupId)
 582                 .build();
 583
 584         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 585                 .asGroupMessage(group);
 586
 587         final GroupInfo g = getGroupForSending(groupId);
 588         g.removeMember(account.getSelfAddress());
 589         account.getGroupStore().updateGroup(g);
 590
 591         sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 592     }
 593
 594     private byte[] sendUpdateGroupMessage(byte[] groupId, String name, Collection<SignalServiceAddress> members, String avatarFile) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 595         GroupInfo g;
 596         if (groupId == null) {
 597             // Create new group
 598             g = new GroupInfo(KeyUtils.createGroupId());
 599             g.addMembers(Collections.singleton(account.getSelfAddress()));
 600         } else {
 601             g = getGroupForSending(groupId);
 602         }
 603
 604         if (name != null) {
 605             g.name = name;
 606         }
 607
 608         if (members != null) {
 609             final Set<String> newE164Members = new HashSet<>();
 610             for (SignalServiceAddress member : members) {
 611                 if (g.isMember(member) || !member.getNumber().isPresent()) {
 612                     continue;
 613                 }
 614                 newE164Members.add(member.getNumber().get());
 615             }
 616
 617             final List<ContactTokenDetails> contacts = accountManager.getContacts(newE164Members);
 618             if (contacts.size() != newE164Members.size()) {
 619                 // Some of the new members are not registered on Signal
 620                 for (ContactTokenDetails contact : contacts) {
 621                     newE164Members.remove(contact.getNumber());
 622                 }
 623                 System.err.println("Failed to add members " + Util.join(", ", newE164Members) + " to group: Not registered on Signal");
 624                 System.err.println("Aborting…");
 625                 System.exit(1);
 626             }
 627
 628             g.addMembers(members);
 629         }
 630
 631         if (avatarFile != null) {
 632             IOUtils.createPrivateDirectories(avatarsPath);
 633             File aFile = getGroupAvatarFile(g.groupId);
 634             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 635         }
 636
 637         account.getGroupStore().updateGroup(g);
 638
 639         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 640
 641         sendMessageLegacy(messageBuilder, g.getMembersWithout(account.getSelfAddress()));
 642         return g.groupId;
 643     }
 644
 645     private void sendUpdateGroupMessage(byte[] groupId, SignalServiceAddress recipient) throws IOException, EncapsulatedExceptions {
 646         if (groupId == null) {
 647             return;
 648         }
 649         GroupInfo g = getGroupForSending(groupId);
 650
 651         if (!g.isMember(recipient)) {
 652             return;
 653         }
 654
 655         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 656
 657         // Send group message only to the recipient who requested it
 658         sendMessageLegacy(messageBuilder, Collections.singleton(recipient));
 659     }
 660
 661     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfo g) {
 662         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 663                 .withId(g.groupId)
 664                 .withName(g.name)
 665                 .withMembers(new ArrayList<>(g.getMembers()));
 666
 667         File aFile = getGroupAvatarFile(g.groupId);
 668         if (aFile.exists()) {
 669             try {
 670                 group.withAvatar(Utils.createAttachment(aFile));
 671             } catch (IOException e) {
 672                 throw new AttachmentInvalidException(aFile.toString(), e);
 673             }
 674         }
 675
 676         return SignalServiceDataMessage.newBuilder()
 677                 .asGroupMessage(group.build())
 678                 .withExpiration(g.messageExpirationTime);
 679     }
 680
 681     private void sendGroupInfoRequest(byte[] groupId, SignalServiceAddress recipient) throws IOException, EncapsulatedExceptions {
 682         if (groupId == null) {
 683             return;
 684         }
 685
 686         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 687                 .withId(groupId);
 688
 689         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 690                 .asGroupMessage(group.build());
 691
 692         // Send group info request message to the recipient who sent us a message with this groupId
 693         sendMessageLegacy(messageBuilder, Collections.singleton(recipient));
 694     }
 695
 696     private void sendReceipt(SignalServiceAddress remoteAddress, long messageId) throws IOException, UntrustedIdentityException {
 697         SignalServiceReceiptMessage receiptMessage = new SignalServiceReceiptMessage(SignalServiceReceiptMessage.Type.DELIVERY,
 698                 Collections.singletonList(messageId),
 699                 System.currentTimeMillis());
 700
 701         getMessageSender().sendReceipt(remoteAddress, getAccessFor(remoteAddress), receiptMessage);
 702     }
 703
 704     @Override
 705     public long sendMessage(String message, List<String> attachments, String recipient)
 706             throws EncapsulatedExceptions, AttachmentInvalidException, IOException, InvalidNumberException {
 707         List<String> recipients = new ArrayList<>(1);
 708         recipients.add(recipient);
 709         return sendMessage(message, attachments, recipients);
 710     }
 711
 712     @Override
 713     public long sendMessage(String messageText, List<String> attachments,
 714                             List<String> recipients)
 715             throws IOException, EncapsulatedExceptions, AttachmentInvalidException, InvalidNumberException {
 716         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 717         if (attachments != null) {
 718             List<SignalServiceAttachment> attachmentStreams = Utils.getSignalServiceAttachments(attachments);
 719
 720             // Upload attachments here, so we only upload once even for multiple recipients
 721             SignalServiceMessageSender messageSender = getMessageSender();
 722             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 723             for (SignalServiceAttachment attachment : attachmentStreams) {
 724                 if (attachment.isStream()) {
 725                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 726                 } else if (attachment.isPointer()) {
 727                     attachmentPointers.add(attachment.asPointer());
 728                 }
 729             }
 730
 731             messageBuilder.withAttachments(attachmentPointers);
 732         }
 733         return sendMessageLegacy(messageBuilder, getSignalServiceAddresses(recipients));
 734     }
 735
 736     public void sendMessageReaction(String emoji, boolean remove, String targetAuthor,
 737                                     long targetSentTimestamp, List<String> recipients)
 738             throws IOException, EncapsulatedExceptions, AttachmentInvalidException, InvalidNumberException {
 739         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, canonicalizeAndResolveSignalServiceAddress(targetAuthor), targetSentTimestamp);
 740         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 741                 .withReaction(reaction);
 742         sendMessageLegacy(messageBuilder, getSignalServiceAddresses(recipients));
 743     }
 744
 745     @Override
 746     public void sendEndSessionMessage(List<String> recipients) throws IOException, EncapsulatedExceptions, InvalidNumberException {
 747         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 748                 .asEndSessionMessage();
 749
 750         final Collection<SignalServiceAddress> signalServiceAddresses = getSignalServiceAddresses(recipients);
 751         try {
 752             sendMessageLegacy(messageBuilder, signalServiceAddresses);
 753         } catch (Exception e) {
 754             for (SignalServiceAddress address : signalServiceAddresses) {
 755                 handleEndSession(address);
 756             }
 757             throw e;
 758         }
 759     }
 760
 761     @Override
 762     public String getContactName(String number) throws InvalidNumberException {
 763         ContactInfo contact = account.getContactStore().getContact(canonicalizeAndResolveSignalServiceAddress(number));
 764         if (contact == null) {
 765             return "";
 766         } else {
 767             return contact.name;
 768         }
 769     }
 770
 771     @Override
 772     public void setContactName(String number, String name) throws InvalidNumberException {
 773         final SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(number);
 774         ContactInfo contact = account.getContactStore().getContact(address);
 775         if (contact == null) {
 776             contact = new ContactInfo(address);
 777             System.err.println("Add contact " + contact.number + " named " + name);
 778         } else {
 779             System.err.println("Updating contact " + contact.number + " name " + contact.name + " -> " + name);
 780         }
 781         contact.name = name;
 782         account.getContactStore().updateContact(contact);
 783         account.save();
 784     }
 785
 786     @Override
 787     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
 788         setContactBlocked(canonicalizeAndResolveSignalServiceAddress(number), blocked);
 789     }
 790
 791     private void setContactBlocked(SignalServiceAddress address, boolean blocked) {
 792         ContactInfo contact = account.getContactStore().getContact(address);
 793         if (contact == null) {
 794             contact = new ContactInfo(address);
 795             System.err.println("Adding and " + (blocked ? "blocking" : "unblocking") + " contact " + address.getNumber().orNull());
 796         } else {
 797             System.err.println((blocked ? "Blocking" : "Unblocking") + " contact " + address.getNumber().orNull());
 798         }
 799         contact.blocked = blocked;
 800         account.getContactStore().updateContact(contact);
 801         account.save();
 802     }
 803
 804     @Override
 805     public void setGroupBlocked(final byte[] groupId, final boolean blocked) throws GroupNotFoundException {
 806         GroupInfo group = getGroup(groupId);
 807         if (group == null) {
 808             throw new GroupNotFoundException(groupId);
 809         } else {
 810             System.err.println((blocked ? "Blocking" : "Unblocking") + " group " + Base64.encodeBytes(groupId));
 811             group.blocked = blocked;
 812             account.getGroupStore().updateGroup(group);
 813             account.save();
 814         }
 815     }
 816
 817     @Override
 818     public List<byte[]> getGroupIds() {
 819         List<GroupInfo> groups = getGroups();
 820         List<byte[]> ids = new ArrayList<>(groups.size());
 821         for (GroupInfo group : groups) {
 822             ids.add(group.groupId);
 823         }
 824         return ids;
 825     }
 826
 827     @Override
 828     public String getGroupName(byte[] groupId) {
 829         GroupInfo group = getGroup(groupId);
 830         if (group == null) {
 831             return "";
 832         } else {
 833             return group.name;
 834         }
 835     }
 836
 837     @Override
 838     public List<String> getGroupMembers(byte[] groupId) {
 839         GroupInfo group = getGroup(groupId);
 840         if (group == null) {
 841             return Collections.emptyList();
 842         } else {
 843             return new ArrayList<>(group.getMembersE164());
 844         }
 845     }
 846
 847     @Override
 848     public byte[] updateGroup(byte[] groupId, String name, List<String> members, String avatar) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException, InvalidNumberException {
 849         if (groupId.length == 0) {
 850             groupId = null;
 851         }
 852         if (name.isEmpty()) {
 853             name = null;
 854         }
 855         if (members.size() == 0) {
 856             members = null;
 857         }
 858         if (avatar.isEmpty()) {
 859             avatar = null;
 860         }
 861         return sendUpdateGroupMessage(groupId, name, members == null ? null : getSignalServiceAddresses(members), avatar);
 862     }
 863
 864     /**
 865      * Change the expiration timer for a contact
 866      */
 867     public void setExpirationTimer(SignalServiceAddress address, int messageExpirationTimer) {
 868         ContactInfo c = account.getContactStore().getContact(address);
 869         c.messageExpirationTime = messageExpirationTimer;
 870         account.getContactStore().updateContact(c);
 871     }
 872
 873     /**
 874      * Change the expiration timer for a group
 875      */
 876     public void setExpirationTimer(byte[] groupId, int messageExpirationTimer) {
 877         GroupInfo g = account.getGroupStore().getGroup(groupId);
 878         g.messageExpirationTime = messageExpirationTimer;
 879         account.getGroupStore().updateGroup(g);
 880     }
 881
 882     /**
 883      * Upload the sticker pack from path.
 884      *
 885      * @param path Path can be a path to a manifest.json file or to a zip file that contains a manifest.json file
 886      * @return if successful, returns the URL to install the sticker pack in the signal app
 887      */
 888     public String uploadStickerPack(String path) throws IOException, StickerPackInvalidException {
 889         SignalServiceStickerManifestUpload manifest = getSignalServiceStickerManifestUpload(path);
 890
 891         SignalServiceMessageSender messageSender = getMessageSender();
 892
 893         byte[] packKey = KeyUtils.createStickerUploadKey();
 894         String packId = messageSender.uploadStickerManifest(manifest, packKey);
 895
 896         try {
 897             return new URI("https", "signal.art", "/addstickers/", "pack_id=" + URLEncoder.encode(packId, "utf-8") + "&pack_key=" + URLEncoder.encode(Hex.toStringCondensed(packKey), "utf-8"))
 898                     .toString();
 899         } catch (URISyntaxException e) {
 900             throw new AssertionError(e);
 901         }
 902     }
 903
 904     private SignalServiceStickerManifestUpload getSignalServiceStickerManifestUpload(final String path) throws IOException, StickerPackInvalidException {
 905         ZipFile zip = null;
 906         String rootPath = null;
 907
 908         final File file = new File(path);
 909         if (file.getName().endsWith(".zip")) {
 910             zip = new ZipFile(file);
 911         } else if (file.getName().equals("manifest.json")) {
 912             rootPath = file.getParent();
 913         } else {
 914             throw new StickerPackInvalidException("Could not find manifest.json");
 915         }
 916
 917         JsonStickerPack pack = parseStickerPack(rootPath, zip);
 918
 919         if (pack.stickers == null) {
 920             throw new StickerPackInvalidException("Must set a 'stickers' field.");
 921         }
 922
 923         if (pack.stickers.isEmpty()) {
 924             throw new StickerPackInvalidException("Must include stickers.");
 925         }
 926
 927         List<StickerInfo> stickers = new ArrayList<>(pack.stickers.size());
 928         for (JsonStickerPack.JsonSticker sticker : pack.stickers) {
 929             if (sticker.file == null) {
 930                 throw new StickerPackInvalidException("Must set a 'file' field on each sticker.");
 931             }
 932
 933             Pair<InputStream, Long> data;
 934             try {
 935                 data = getInputStreamAndLength(rootPath, zip, sticker.file);
 936             } catch (IOException ignored) {
 937                 throw new StickerPackInvalidException("Could not find find " + sticker.file);
 938             }
 939
 940             StickerInfo stickerInfo = new StickerInfo(data.first(), data.second(), Optional.fromNullable(sticker.emoji).or(""));
 941             stickers.add(stickerInfo);
 942         }
 943
 944         StickerInfo cover = null;
 945         if (pack.cover != null) {
 946             if (pack.cover.file == null) {
 947                 throw new StickerPackInvalidException("Must set a 'file' field on the cover.");
 948             }
 949
 950             Pair<InputStream, Long> data;
 951             try {
 952                 data = getInputStreamAndLength(rootPath, zip, pack.cover.file);
 953             } catch (IOException ignored) {
 954                 throw new StickerPackInvalidException("Could not find find " + pack.cover.file);
 955             }
 956
 957             cover = new StickerInfo(data.first(), data.second(), Optional.fromNullable(pack.cover.emoji).or(""));
 958         }
 959
 960         return new SignalServiceStickerManifestUpload(
 961                 pack.title,
 962                 pack.author,
 963                 cover,
 964                 stickers);
 965     }
 966
 967     private static JsonStickerPack parseStickerPack(String rootPath, ZipFile zip) throws IOException {
 968         InputStream inputStream;
 969         if (zip != null) {
 970             inputStream = zip.getInputStream(zip.getEntry("manifest.json"));
 971         } else {
 972             inputStream = new FileInputStream((new File(rootPath, "manifest.json")));
 973         }
 974         return new ObjectMapper().readValue(inputStream, JsonStickerPack.class);
 975     }
 976
 977     private static Pair<InputStream, Long> getInputStreamAndLength(final String rootPath, final ZipFile zip, final String subfile) throws IOException {
 978         if (zip != null) {
 979             final ZipEntry entry = zip.getEntry(subfile);
 980             return new Pair<>(zip.getInputStream(entry), entry.getSize());
 981         } else {
 982             final File file = new File(rootPath, subfile);
 983             return new Pair<>(new FileInputStream(file), file.length());
 984         }
 985     }
 986
 987     private void requestSyncGroups() throws IOException {
 988         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS).build();
 989         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 990         try {
 991             sendSyncMessage(message);
 992         } catch (UntrustedIdentityException e) {
 993             e.printStackTrace();
 994         }
 995     }
 996
 997     private void requestSyncContacts() throws IOException {
 998         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS).build();
 999         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1000         try {
1001             sendSyncMessage(message);
1002         } catch (UntrustedIdentityException e) {
1003             e.printStackTrace();
1004         }
1005     }
1006
1007     private void requestSyncBlocked() throws IOException {
1008         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED).build();
1009         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1010         try {
1011             sendSyncMessage(message);
1012         } catch (UntrustedIdentityException e) {
1013             e.printStackTrace();
1014         }
1015     }
1016
1017     private void requestSyncConfiguration() throws IOException {
1018         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION).build();
1019         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1020         try {
1021             sendSyncMessage(message);
1022         } catch (UntrustedIdentityException e) {
1023             e.printStackTrace();
1024         }
1025     }
1026
1027     private byte[] getSenderCertificate() {
1028         // TODO support UUID capable sender certificates
1029         // byte[] certificate = accountManager.getSenderCertificate();
1030         byte[] certificate;
1031         try {
1032             certificate = accountManager.getSenderCertificateLegacy();
1033         } catch (IOException e) {
1034             System.err.println("Failed to get sender certificate: " + e);
1035             return null;
1036         }
1037         // TODO cache for a day
1038         return certificate;
1039     }
1040
1041     private byte[] getSelfUnidentifiedAccessKey() {
1042         return UnidentifiedAccess.deriveAccessKeyFrom(account.getProfileKey());
1043     }
1044
1045     private static SignalProfile decryptProfile(SignalServiceProfile encryptedProfile, ProfileKey profileKey) throws IOException {
1046         ProfileCipher profileCipher = new ProfileCipher(profileKey);
1047         try {
1048             return new SignalProfile(
1049                     encryptedProfile.getIdentityKey(),
1050                     encryptedProfile.getName() == null ? null : new String(profileCipher.decryptName(Base64.decode(encryptedProfile.getName()))),
1051                     encryptedProfile.getAvatar(),
1052                     encryptedProfile.getUnidentifiedAccess() == null || !profileCipher.verifyUnidentifiedAccess(Base64.decode(encryptedProfile.getUnidentifiedAccess())) ? null : encryptedProfile.getUnidentifiedAccess(),
1053                     encryptedProfile.isUnrestrictedUnidentifiedAccess()
1054             );
1055         } catch (InvalidCiphertextException e) {
1056             return null;
1057         }
1058     }
1059
1060     private byte[] getTargetUnidentifiedAccessKey(SignalServiceAddress recipient) {
1061         ContactInfo contact = account.getContactStore().getContact(recipient);
1062         if (contact == null || contact.profileKey == null) {
1063             return null;
1064         }
1065         ProfileKey theirProfileKey;
1066         try {
1067             theirProfileKey = new ProfileKey(Base64.decode(contact.profileKey));
1068         } catch (InvalidInputException | IOException e) {
1069             throw new AssertionError(e);
1070         }
1071         SignalProfile targetProfile;
1072         try {
1073             targetProfile = decryptProfile(getRecipientProfile(recipient, Optional.absent()), theirProfileKey);
1074         } catch (IOException e) {
1075             System.err.println("Failed to get recipient profile: " + e);
1076             return null;
1077         }
1078
1079         if (targetProfile == null || targetProfile.getUnidentifiedAccess() == null) {
1080             return null;
1081         }
1082
1083         if (targetProfile.isUnrestrictedUnidentifiedAccess()) {
1084             return KeyUtils.createUnrestrictedUnidentifiedAccess();
1085         }
1086
1087         return UnidentifiedAccess.deriveAccessKeyFrom(theirProfileKey);
1088     }
1089
1090     private Optional<UnidentifiedAccessPair> getAccessForSync() {
1091         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
1092         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
1093
1094         if (selfUnidentifiedAccessKey == null || selfUnidentifiedAccessCertificate == null) {
1095             return Optional.absent();
1096         }
1097
1098         try {
1099             return Optional.of(new UnidentifiedAccessPair(
1100                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate),
1101                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate)
1102             ));
1103         } catch (InvalidCertificateException e) {
1104             return Optional.absent();
1105         }
1106     }
1107
1108     private List<Optional<UnidentifiedAccessPair>> getAccessFor(Collection<SignalServiceAddress> recipients) {
1109         List<Optional<UnidentifiedAccessPair>> result = new ArrayList<>(recipients.size());
1110         for (SignalServiceAddress recipient : recipients) {
1111             result.add(getAccessFor(recipient));
1112         }
1113         return result;
1114     }
1115
1116     private Optional<UnidentifiedAccessPair> getAccessFor(SignalServiceAddress recipient) {
1117         byte[] recipientUnidentifiedAccessKey = getTargetUnidentifiedAccessKey(recipient);
1118         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
1119         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
1120
1121         if (recipientUnidentifiedAccessKey == null || selfUnidentifiedAccessKey == null || selfUnidentifiedAccessCertificate == null) {
1122             return Optional.absent();
1123         }
1124
1125         try {
1126             return Optional.of(new UnidentifiedAccessPair(
1127                     new UnidentifiedAccess(recipientUnidentifiedAccessKey, selfUnidentifiedAccessCertificate),
1128                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate)
1129             ));
1130         } catch (InvalidCertificateException e) {
1131             return Optional.absent();
1132         }
1133     }
1134
1135     private Optional<UnidentifiedAccess> getUnidentifiedAccess(SignalServiceAddress recipient) {
1136         Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
1137
1138         if (unidentifiedAccess.isPresent()) {
1139             return unidentifiedAccess.get().getTargetUnidentifiedAccess();
1140         }
1141
1142         return Optional.absent();
1143     }
1144
1145     private void sendSyncMessage(SignalServiceSyncMessage message)
1146             throws IOException, UntrustedIdentityException {
1147         SignalServiceMessageSender messageSender = getMessageSender();
1148         try {
1149             messageSender.sendMessage(message, getAccessForSync());
1150         } catch (UntrustedIdentityException e) {
1151             account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1152             throw e;
1153         }
1154     }
1155
1156     /**
1157      * This method throws an EncapsulatedExceptions exception instead of returning a list of SendMessageResult.
1158      */
1159     private long sendMessageLegacy(SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients)
1160             throws EncapsulatedExceptions, IOException {
1161         final long timestamp = System.currentTimeMillis();
1162         messageBuilder.withTimestamp(timestamp);
1163         List<SendMessageResult> results = sendMessage(messageBuilder, recipients);
1164
1165         List<UntrustedIdentityException> untrustedIdentities = new LinkedList<>();
1166         List<UnregisteredUserException> unregisteredUsers = new LinkedList<>();
1167         List<NetworkFailureException> networkExceptions = new LinkedList<>();
1168
1169         for (SendMessageResult result : results) {
1170             if (result.isUnregisteredFailure()) {
1171                 unregisteredUsers.add(new UnregisteredUserException(result.getAddress().getLegacyIdentifier(), null));
1172             } else if (result.isNetworkFailure()) {
1173                 networkExceptions.add(new NetworkFailureException(result.getAddress().getLegacyIdentifier(), null));
1174             } else if (result.getIdentityFailure() != null) {
1175                 untrustedIdentities.add(new UntrustedIdentityException("Untrusted", result.getAddress().getLegacyIdentifier(), result.getIdentityFailure().getIdentityKey()));
1176             }
1177         }
1178         if (!untrustedIdentities.isEmpty() || !unregisteredUsers.isEmpty() || !networkExceptions.isEmpty()) {
1179             throw new EncapsulatedExceptions(untrustedIdentities, unregisteredUsers, networkExceptions);
1180         }
1181         return timestamp;
1182     }
1183
1184     private Collection<SignalServiceAddress> getSignalServiceAddresses(Collection<String> numbers) throws InvalidNumberException {
1185         final Set<SignalServiceAddress> signalServiceAddresses = new HashSet<>(numbers.size());
1186
1187         for (String number : numbers) {
1188             signalServiceAddresses.add(canonicalizeAndResolveSignalServiceAddress(number));
1189         }
1190         return signalServiceAddresses;
1191     }
1192
1193     private List<SendMessageResult> sendMessage(SignalServiceDataMessage.Builder messageBuilder, Collection<SignalServiceAddress> recipients)
1194             throws IOException {
1195         if (messagePipe == null) {
1196             messagePipe = getMessageReceiver().createMessagePipe();
1197         }
1198         if (unidentifiedMessagePipe == null) {
1199             unidentifiedMessagePipe = getMessageReceiver().createUnidentifiedMessagePipe();
1200         }
1201         SignalServiceDataMessage message = null;
1202         try {
1203             SignalServiceMessageSender messageSender = getMessageSender();
1204
1205             message = messageBuilder.build();
1206             if (message.getGroupContext().isPresent()) {
1207                 try {
1208                     final boolean isRecipientUpdate = false;
1209                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipients), getAccessFor(recipients), isRecipientUpdate, message);
1210                     for (SendMessageResult r : result) {
1211                         if (r.getIdentityFailure() != null) {
1212                             account.getSignalProtocolStore().saveIdentity(r.getAddress(), r.getIdentityFailure().getIdentityKey(), TrustLevel.UNTRUSTED);
1213                         }
1214                     }
1215                     return result;
1216                 } catch (UntrustedIdentityException e) {
1217                     account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1218                     return Collections.emptyList();
1219                 }
1220             } else if (recipients.size() == 1 && recipients.contains(account.getSelfAddress())) {
1221                 SignalServiceAddress recipient = account.getSelfAddress();
1222                 final Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
1223                 SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1224                         message.getTimestamp(),
1225                         message,
1226                         message.getExpiresInSeconds(),
1227                         Collections.singletonMap(recipient, unidentifiedAccess.isPresent()),
1228                         false);
1229                 SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1230
1231                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1232                 try {
1233                     messageSender.sendMessage(syncMessage, unidentifiedAccess);
1234                 } catch (UntrustedIdentityException e) {
1235                     account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1236                     results.add(SendMessageResult.identityFailure(recipient, e.getIdentityKey()));
1237                 }
1238                 return results;
1239             } else {
1240                 // Send to all individually, so sync messages are sent correctly
1241                 List<SendMessageResult> results = new ArrayList<>(recipients.size());
1242                 for (SignalServiceAddress address : recipients) {
1243                     ContactInfo contact = account.getContactStore().getContact(address);
1244                     if (contact != null) {
1245                         messageBuilder.withExpiration(contact.messageExpirationTime);
1246                         messageBuilder.withProfileKey(account.getProfileKey().serialize());
1247                     } else {
1248                         messageBuilder.withExpiration(0);
1249                         messageBuilder.withProfileKey(null);
1250                     }
1251                     message = messageBuilder.build();
1252                     try {
1253                         SendMessageResult result = messageSender.sendMessage(address, getAccessFor(address), message);
1254                         results.add(result);
1255                     } catch (UntrustedIdentityException e) {
1256                         account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(e.getIdentifier()), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1257                         results.add(SendMessageResult.identityFailure(address, e.getIdentityKey()));
1258                     }
1259                 }
1260                 return results;
1261             }
1262         } finally {
1263             if (message != null && message.isEndSession()) {
1264                 for (SignalServiceAddress recipient : recipients) {
1265                     handleEndSession(recipient);
1266                 }
1267             }
1268             account.save();
1269         }
1270     }
1271
1272     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, SelfSendException, UnsupportedDataMessageException, org.whispersystems.libsignal.UntrustedIdentityException {
1273         SignalServiceCipher cipher = new SignalServiceCipher(account.getSelfAddress(), account.getSignalProtocolStore(), Utils.getCertificateValidator());
1274         try {
1275             return cipher.decrypt(envelope);
1276         } catch (ProtocolUntrustedIdentityException e) {
1277             if (e.getCause() instanceof org.whispersystems.libsignal.UntrustedIdentityException) {
1278                 org.whispersystems.libsignal.UntrustedIdentityException identityException = (org.whispersystems.libsignal.UntrustedIdentityException) e.getCause();
1279                 account.getSignalProtocolStore().saveIdentity(resolveSignalServiceAddress(identityException.getName()), identityException.getUntrustedIdentity(), TrustLevel.UNTRUSTED);
1280                 throw identityException;
1281             }
1282             throw new AssertionError(e);
1283         }
1284     }
1285
1286     private void handleEndSession(SignalServiceAddress source) {
1287         account.getSignalProtocolStore().deleteAllSessions(source);
1288     }
1289
1290     private void handleSignalServiceDataMessage(SignalServiceDataMessage message, boolean isSync, SignalServiceAddress source, SignalServiceAddress destination, boolean ignoreAttachments) {
1291         if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1292             SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1293             GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
1294             switch (groupInfo.getType()) {
1295                 case UPDATE:
1296                     if (group == null) {
1297                         group = new GroupInfo(groupInfo.getGroupId());
1298                     }
1299
1300                     if (groupInfo.getAvatar().isPresent()) {
1301                         SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1302                         if (avatar.isPointer()) {
1303                             try {
1304                                 retrieveGroupAvatarAttachment(avatar.asPointer(), group.groupId);
1305                             } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1306                                 System.err.println("Failed to retrieve group avatar (" + avatar.asPointer().getRemoteId() + "): " + e.getMessage());
1307                             }
1308                         }
1309                     }
1310
1311                     if (groupInfo.getName().isPresent()) {
1312                         group.name = groupInfo.getName().get();
1313                     }
1314
1315                     if (groupInfo.getMembers().isPresent()) {
1316                         group.addMembers(groupInfo.getMembers().get()
1317                                 .stream()
1318                                 .map(this::resolveSignalServiceAddress)
1319                                 .collect(Collectors.toSet()));
1320                     }
1321
1322                     account.getGroupStore().updateGroup(group);
1323                     break;
1324                 case DELIVER:
1325                     if (group == null) {
1326                         try {
1327                             sendGroupInfoRequest(groupInfo.getGroupId(), source);
1328                         } catch (IOException | EncapsulatedExceptions e) {
1329                             e.printStackTrace();
1330                         }
1331                     }
1332                     break;
1333                 case QUIT:
1334                     if (group != null) {
1335                         group.removeMember(source);
1336                         account.getGroupStore().updateGroup(group);
1337                     }
1338                     break;
1339                 case REQUEST_INFO:
1340                     if (group != null) {
1341                         try {
1342                             sendUpdateGroupMessage(groupInfo.getGroupId(), source);
1343                         } catch (IOException | EncapsulatedExceptions e) {
1344                             e.printStackTrace();
1345                         } catch (NotAGroupMemberException e) {
1346                             // We have left this group, so don't send a group update message
1347                         }
1348                     }
1349                     break;
1350             }
1351         }
1352         final SignalServiceAddress conversationPartnerAddress = isSync ? destination : source;
1353         if (message.isEndSession()) {
1354             handleEndSession(conversationPartnerAddress);
1355         }
1356         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1357             if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1358                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1359                 GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
1360                 if (group == null) {
1361                     group = new GroupInfo(groupInfo.getGroupId());
1362                 }
1363                 if (group.messageExpirationTime != message.getExpiresInSeconds()) {
1364                     group.messageExpirationTime = message.getExpiresInSeconds();
1365                     account.getGroupStore().updateGroup(group);
1366                 }
1367             } else {
1368                 ContactInfo contact = account.getContactStore().getContact(conversationPartnerAddress);
1369                 if (contact == null) {
1370                     contact = new ContactInfo(conversationPartnerAddress);
1371                 }
1372                 if (contact.messageExpirationTime != message.getExpiresInSeconds()) {
1373                     contact.messageExpirationTime = message.getExpiresInSeconds();
1374                     account.getContactStore().updateContact(contact);
1375                 }
1376             }
1377         }
1378         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1379             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1380                 if (attachment.isPointer()) {
1381                     try {
1382                         retrieveAttachment(attachment.asPointer());
1383                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1384                         System.err.println("Failed to retrieve attachment (" + attachment.asPointer().getRemoteId() + "): " + e.getMessage());
1385                     }
1386                 }
1387             }
1388         }
1389         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1390             if (source.matches(account.getSelfAddress())) {
1391                 try {
1392                     this.account.setProfileKey(new ProfileKey(message.getProfileKey().get()));
1393                 } catch (InvalidInputException ignored) {
1394                 }
1395                 ContactInfo contact = account.getContactStore().getContact(source);
1396                 if (contact != null) {
1397                     contact.profileKey = Base64.encodeBytes(message.getProfileKey().get());
1398                     account.getContactStore().updateContact(contact);
1399                 }
1400             } else {
1401                 ContactInfo contact = account.getContactStore().getContact(source);
1402                 if (contact == null) {
1403                     contact = new ContactInfo(source);
1404                 }
1405                 contact.profileKey = Base64.encodeBytes(message.getProfileKey().get());
1406                 account.getContactStore().updateContact(contact);
1407             }
1408         }
1409         if (message.getPreviews().isPresent()) {
1410             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1411             for (SignalServiceDataMessage.Preview preview : previews) {
1412                 if (preview.getImage().isPresent() && preview.getImage().get().isPointer()) {
1413                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
1414                     try {
1415                         retrieveAttachment(attachment);
1416                     } catch (IOException | InvalidMessageException | MissingConfigurationException e) {
1417                         System.err.println("Failed to retrieve attachment (" + attachment.getRemoteId() + "): " + e.getMessage());
1418                     }
1419                 }
1420             }
1421         }
1422     }
1423
1424     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1425         final File cachePath = new File(getMessageCachePath());
1426         if (!cachePath.exists()) {
1427             return;
1428         }
1429         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
1430             if (!dir.isDirectory()) {
1431                 retryFailedReceivedMessage(handler, ignoreAttachments, dir);
1432                 continue;
1433             }
1434
1435             for (final File fileEntry : Objects.requireNonNull(dir.listFiles())) {
1436                 if (!fileEntry.isFile()) {
1437                     continue;
1438                 }
1439                 retryFailedReceivedMessage(handler, ignoreAttachments, fileEntry);
1440             }
1441             // Try to delete directory if empty
1442             dir.delete();
1443         }
1444     }
1445
1446     private void retryFailedReceivedMessage(final ReceiveMessageHandler handler, final boolean ignoreAttachments, final File fileEntry) {
1447         SignalServiceEnvelope envelope;
1448         try {
1449             envelope = Utils.loadEnvelope(fileEntry);
1450             if (envelope == null) {
1451                 return;
1452             }
1453         } catch (IOException e) {
1454             e.printStackTrace();
1455             return;
1456         }
1457         SignalServiceContent content = null;
1458         if (!envelope.isReceipt()) {
1459             try {
1460                 content = decryptMessage(envelope);
1461             } catch (Exception e) {
1462                 return;
1463             }
1464             handleMessage(envelope, content, ignoreAttachments);
1465         }
1466         account.save();
1467         handler.handleMessage(envelope, content, null);
1468         try {
1469             Files.delete(fileEntry.toPath());
1470         } catch (IOException e) {
1471             System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1472         }
1473     }
1474
1475     public void receiveMessages(long timeout, TimeUnit unit, boolean returnOnTimeout, boolean ignoreAttachments, ReceiveMessageHandler handler) throws IOException {
1476         retryFailedReceivedMessages(handler, ignoreAttachments);
1477         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1478
1479         try {
1480             if (messagePipe == null) {
1481                 messagePipe = messageReceiver.createMessagePipe();
1482             }
1483
1484             while (true) {
1485                 SignalServiceEnvelope envelope;
1486                 SignalServiceContent content = null;
1487                 Exception exception = null;
1488                 final long now = new Date().getTime();
1489                 try {
1490                     envelope = messagePipe.read(timeout, unit, envelope1 -> {
1491                         // store message on disk, before acknowledging receipt to the server
1492                         try {
1493                             String source = envelope1.getSourceE164().isPresent() ? envelope1.getSourceE164().get() : "";
1494                             File cacheFile = getMessageCacheFile(source, now, envelope1.getTimestamp());
1495                             Utils.storeEnvelope(envelope1, cacheFile);
1496                         } catch (IOException e) {
1497                             System.err.println("Failed to store encrypted message in disk cache, ignoring: " + e.getMessage());
1498                         }
1499                     });
1500                 } catch (TimeoutException e) {
1501                     if (returnOnTimeout)
1502                         return;
1503                     continue;
1504                 } catch (InvalidVersionException e) {
1505                     System.err.println("Ignoring error: " + e.getMessage());
1506                     continue;
1507                 }
1508                 if (!envelope.isReceipt()) {
1509                     try {
1510                         content = decryptMessage(envelope);
1511                     } catch (Exception e) {
1512                         exception = e;
1513                     }
1514                     handleMessage(envelope, content, ignoreAttachments);
1515                 }
1516                 account.save();
1517                 if (!isMessageBlocked(envelope, content)) {
1518                     handler.handleMessage(envelope, content, exception);
1519                 }
1520                 if (!(exception instanceof org.whispersystems.libsignal.UntrustedIdentityException)) {
1521                     File cacheFile = null;
1522                     try {
1523                         cacheFile = getMessageCacheFile(envelope.getSourceE164().get(), now, envelope.getTimestamp());
1524                         Files.delete(cacheFile.toPath());
1525                         // Try to delete directory if empty
1526                         new File(getMessageCachePath()).delete();
1527                     } catch (IOException e) {
1528                         System.err.println("Failed to delete cached message file “" + cacheFile + "”: " + e.getMessage());
1529                     }
1530                 }
1531             }
1532         } finally {
1533             if (messagePipe != null) {
1534                 messagePipe.shutdown();
1535                 messagePipe = null;
1536             }
1537         }
1538     }
1539
1540     private boolean isMessageBlocked(SignalServiceEnvelope envelope, SignalServiceContent content) {
1541         SignalServiceAddress source;
1542         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1543             source = envelope.getSourceAddress();
1544         } else if (content != null) {
1545             source = content.getSender();
1546         } else {
1547             return false;
1548         }
1549         ContactInfo sourceContact = account.getContactStore().getContact(source);
1550         if (sourceContact != null && sourceContact.blocked) {
1551             return true;
1552         }
1553
1554         if (content != null && content.getDataMessage().isPresent()) {
1555             SignalServiceDataMessage message = content.getDataMessage().get();
1556             if (message.getGroupContext().isPresent() && message.getGroupContext().get().getGroupV1().isPresent()) {
1557                 SignalServiceGroup groupInfo = message.getGroupContext().get().getGroupV1().get();
1558                 GroupInfo group = getGroup(groupInfo.getGroupId());
1559                 if (groupInfo.getType() == SignalServiceGroup.Type.DELIVER && group != null && group.blocked) {
1560                     return true;
1561                 }
1562             }
1563         }
1564         return false;
1565     }
1566
1567     private void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments) {
1568         if (content != null) {
1569             SignalServiceAddress sender;
1570             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1571                 sender = envelope.getSourceAddress();
1572             } else {
1573                 sender = content.getSender();
1574             }
1575             if (content.getDataMessage().isPresent()) {
1576                 SignalServiceDataMessage message = content.getDataMessage().get();
1577
1578                 if (content.isNeedsReceipt()) {
1579                     try {
1580                         sendReceipt(sender, message.getTimestamp());
1581                     } catch (IOException | UntrustedIdentityException | IllegalArgumentException e) {
1582                         e.printStackTrace();
1583                     }
1584                 }
1585
1586                 handleSignalServiceDataMessage(message, false, sender, account.getSelfAddress(), ignoreAttachments);
1587             }
1588             if (content.getSyncMessage().isPresent()) {
1589                 account.setMultiDevice(true);
1590                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1591                 if (syncMessage.getSent().isPresent()) {
1592                     SentTranscriptMessage message = syncMessage.getSent().get();
1593                     handleSignalServiceDataMessage(message.getMessage(), true, sender, message.getDestination().orNull(), ignoreAttachments);
1594                 }
1595                 if (syncMessage.getRequest().isPresent()) {
1596                     RequestMessage rm = syncMessage.getRequest().get();
1597                     if (rm.isContactsRequest()) {
1598                         try {
1599                             sendContacts();
1600                         } catch (UntrustedIdentityException | IOException | IllegalArgumentException e) {
1601                             e.printStackTrace();
1602                         }
1603                     }
1604                     if (rm.isGroupsRequest()) {
1605                         try {
1606                             sendGroups();
1607                         } catch (UntrustedIdentityException | IOException | IllegalArgumentException e) {
1608                             e.printStackTrace();
1609                         }
1610                     }
1611                     if (rm.isBlockedListRequest()) {
1612                         try {
1613                             sendBlockedList();
1614                         } catch (UntrustedIdentityException | IOException | IllegalArgumentException e) {
1615                             e.printStackTrace();
1616                         }
1617                     }
1618                     // TODO Handle rm.isConfigurationRequest();
1619                 }
1620                 if (syncMessage.getGroups().isPresent()) {
1621                     File tmpFile = null;
1622                     try {
1623                         tmpFile = IOUtils.createTempFile();
1624                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups().get().asPointer(), tmpFile)) {
1625                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1626                             DeviceGroup g;
1627                             while ((g = s.read()) != null) {
1628                                 GroupInfo syncGroup = account.getGroupStore().getGroup(g.getId());
1629                                 if (syncGroup == null) {
1630                                     syncGroup = new GroupInfo(g.getId());
1631                                 }
1632                                 if (g.getName().isPresent()) {
1633                                     syncGroup.name = g.getName().get();
1634                                 }
1635                                 syncGroup.addMembers(g.getMembers()
1636                                         .stream()
1637                                         .map(this::resolveSignalServiceAddress)
1638                                         .collect(Collectors.toSet()));
1639                                 if (!g.isActive()) {
1640                                     syncGroup.removeMember(account.getSelfAddress());
1641                                 } else {
1642                                     // Add ourself to the member set as it's marked as active
1643                                     syncGroup.addMembers(Collections.singleton(account.getSelfAddress()));
1644                                 }
1645                                 syncGroup.blocked = g.isBlocked();
1646                                 if (g.getColor().isPresent()) {
1647                                     syncGroup.color = g.getColor().get();
1648                                 }
1649
1650                                 if (g.getAvatar().isPresent()) {
1651                                     retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId);
1652                                 }
1653                                 syncGroup.inboxPosition = g.getInboxPosition().orNull();
1654                                 syncGroup.archived = g.isArchived();
1655                                 account.getGroupStore().updateGroup(syncGroup);
1656                             }
1657                         }
1658                     } catch (Exception e) {
1659                         e.printStackTrace();
1660                     } finally {
1661                         if (tmpFile != null) {
1662                             try {
1663                                 Files.delete(tmpFile.toPath());
1664                             } catch (IOException e) {
1665                                 System.err.println("Failed to delete received groups temp file “" + tmpFile + "”: " + e.getMessage());
1666                             }
1667                         }
1668                     }
1669                 }
1670                 if (syncMessage.getBlockedList().isPresent()) {
1671                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1672                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1673                         setContactBlocked(resolveSignalServiceAddress(address), true);
1674                     }
1675                     for (byte[] groupId : blockedListMessage.getGroupIds()) {
1676                         try {
1677                             setGroupBlocked(groupId, true);
1678                         } catch (GroupNotFoundException e) {
1679                             System.err.println("BlockedListMessage contained groupID that was not found in GroupStore: " + Base64.encodeBytes(groupId));
1680                         }
1681                     }
1682                 }
1683                 if (syncMessage.getContacts().isPresent()) {
1684                     File tmpFile = null;
1685                     try {
1686                         tmpFile = IOUtils.createTempFile();
1687                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1688                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream().asPointer(), tmpFile)) {
1689                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1690                             if (contactsMessage.isComplete()) {
1691                                 account.getContactStore().clear();
1692                             }
1693                             DeviceContact c;
1694                             while ((c = s.read()) != null) {
1695                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
1696                                     account.setProfileKey(c.getProfileKey().get());
1697                                 }
1698                                 final SignalServiceAddress address = resolveSignalServiceAddress(c.getAddress());
1699                                 ContactInfo contact = account.getContactStore().getContact(address);
1700                                 if (contact == null) {
1701                                     contact = new ContactInfo(address);
1702                                 }
1703                                 if (c.getName().isPresent()) {
1704                                     contact.name = c.getName().get();
1705                                 }
1706                                 if (c.getColor().isPresent()) {
1707                                     contact.color = c.getColor().get();
1708                                 }
1709                                 if (c.getProfileKey().isPresent()) {
1710                                     contact.profileKey = Base64.encodeBytes(c.getProfileKey().get().serialize());
1711                                 }
1712                                 if (c.getVerified().isPresent()) {
1713                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
1714                                     account.getSignalProtocolStore().setIdentityTrustLevel(verifiedMessage.getDestination(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1715                                 }
1716                                 if (c.getExpirationTimer().isPresent()) {
1717                                     contact.messageExpirationTime = c.getExpirationTimer().get();
1718                                 }
1719                                 contact.blocked = c.isBlocked();
1720                                 contact.inboxPosition = c.getInboxPosition().orNull();
1721                                 contact.archived = c.isArchived();
1722                                 account.getContactStore().updateContact(contact);
1723
1724                                 if (c.getAvatar().isPresent()) {
1725                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
1726                                 }
1727                             }
1728                         }
1729                     } catch (Exception e) {
1730                         e.printStackTrace();
1731                     } finally {
1732                         if (tmpFile != null) {
1733                             try {
1734                                 Files.delete(tmpFile.toPath());
1735                             } catch (IOException e) {
1736                                 System.err.println("Failed to delete received contacts temp file “" + tmpFile + "”: " + e.getMessage());
1737                             }
1738                         }
1739                     }
1740                 }
1741                 if (syncMessage.getVerified().isPresent()) {
1742                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
1743                     account.getSignalProtocolStore().setIdentityTrustLevel(resolveSignalServiceAddress(verifiedMessage.getDestination()), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1744                 }
1745                 if (syncMessage.getConfiguration().isPresent()) {
1746                     // TODO
1747                 }
1748             }
1749         }
1750     }
1751
1752     private File getContactAvatarFile(String number) {
1753         return new File(avatarsPath, "contact-" + number);
1754     }
1755
1756     private File retrieveContactAvatarAttachment(SignalServiceAttachment attachment, String number) throws IOException, InvalidMessageException, MissingConfigurationException {
1757         IOUtils.createPrivateDirectories(avatarsPath);
1758         if (attachment.isPointer()) {
1759             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1760             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
1761         } else {
1762             SignalServiceAttachmentStream stream = attachment.asStream();
1763             return Utils.retrieveAttachment(stream, getContactAvatarFile(number));
1764         }
1765     }
1766
1767     private File getGroupAvatarFile(byte[] groupId) {
1768         return new File(avatarsPath, "group-" + Base64.encodeBytes(groupId).replace("/", "_"));
1769     }
1770
1771     private File retrieveGroupAvatarAttachment(SignalServiceAttachment attachment, byte[] groupId) throws IOException, InvalidMessageException, MissingConfigurationException {
1772         IOUtils.createPrivateDirectories(avatarsPath);
1773         if (attachment.isPointer()) {
1774             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1775             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
1776         } else {
1777             SignalServiceAttachmentStream stream = attachment.asStream();
1778             return Utils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
1779         }
1780     }
1781
1782     public File getAttachmentFile(SignalServiceAttachmentRemoteId attachmentId) {
1783         return new File(attachmentsPath, attachmentId.toString());
1784     }
1785
1786     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException, MissingConfigurationException {
1787         IOUtils.createPrivateDirectories(attachmentsPath);
1788         return retrieveAttachment(pointer, getAttachmentFile(pointer.getRemoteId()), true);
1789     }
1790
1791     private File retrieveAttachment(SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview) throws IOException, InvalidMessageException, MissingConfigurationException {
1792         if (storePreview && pointer.getPreview().isPresent()) {
1793             File previewFile = new File(outputFile + ".preview");
1794             try (OutputStream output = new FileOutputStream(previewFile)) {
1795                 byte[] preview = pointer.getPreview().get();
1796                 output.write(preview, 0, preview.length);
1797             } catch (FileNotFoundException e) {
1798                 e.printStackTrace();
1799                 return null;
1800             }
1801         }
1802
1803         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1804
1805         File tmpFile = IOUtils.createTempFile();
1806         try (InputStream input = messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE)) {
1807             try (OutputStream output = new FileOutputStream(outputFile)) {
1808                 byte[] buffer = new byte[4096];
1809                 int read;
1810
1811                 while ((read = input.read(buffer)) != -1) {
1812                     output.write(buffer, 0, read);
1813                 }
1814             } catch (FileNotFoundException e) {
1815                 e.printStackTrace();
1816                 return null;
1817             }
1818         } finally {
1819             try {
1820                 Files.delete(tmpFile.toPath());
1821             } catch (IOException e) {
1822                 System.err.println("Failed to delete received attachment temp file “" + tmpFile + "”: " + e.getMessage());
1823             }
1824         }
1825         return outputFile;
1826     }
1827
1828     private InputStream retrieveAttachmentAsStream(SignalServiceAttachmentPointer pointer, File tmpFile) throws IOException, InvalidMessageException, MissingConfigurationException {
1829         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1830         return messageReceiver.retrieveAttachment(pointer, tmpFile, ServiceConfig.MAX_ATTACHMENT_SIZE);
1831     }
1832
1833     @Override
1834     public boolean isRemote() {
1835         return false;
1836     }
1837
1838     @Override
1839     public String getObjectPath() {
1840         return null;
1841     }
1842
1843     private void sendGroups() throws IOException, UntrustedIdentityException {
1844         File groupsFile = IOUtils.createTempFile();
1845
1846         try {
1847             try (OutputStream fos = new FileOutputStream(groupsFile)) {
1848                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
1849                 for (GroupInfo record : account.getGroupStore().getGroups()) {
1850                     out.write(new DeviceGroup(record.groupId, Optional.fromNullable(record.name),
1851                             new ArrayList<>(record.getMembers()), createGroupAvatarAttachment(record.groupId),
1852                             record.isMember(account.getSelfAddress()), Optional.of(record.messageExpirationTime),
1853                             Optional.fromNullable(record.color), record.blocked, Optional.fromNullable(record.inboxPosition), record.archived));
1854                 }
1855             }
1856
1857             if (groupsFile.exists() && groupsFile.length() > 0) {
1858                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
1859                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1860                             .withStream(groupsFileStream)
1861                             .withContentType("application/octet-stream")
1862                             .withLength(groupsFile.length())
1863                             .build();
1864
1865                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
1866                 }
1867             }
1868         } finally {
1869             try {
1870                 Files.delete(groupsFile.toPath());
1871             } catch (IOException e) {
1872                 System.err.println("Failed to delete groups temp file “" + groupsFile + "”: " + e.getMessage());
1873             }
1874         }
1875     }
1876
1877     public void sendContacts() throws IOException, UntrustedIdentityException {
1878         File contactsFile = IOUtils.createTempFile();
1879
1880         try {
1881             try (OutputStream fos = new FileOutputStream(contactsFile)) {
1882                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
1883                 for (ContactInfo record : account.getContactStore().getContacts()) {
1884                     VerifiedMessage verifiedMessage = null;
1885                     JsonIdentityKeyStore.Identity currentIdentity = account.getSignalProtocolStore().getIdentity(record.getAddress());
1886                     if (currentIdentity != null) {
1887                         verifiedMessage = new VerifiedMessage(record.getAddress(), currentIdentity.getIdentityKey(), currentIdentity.getTrustLevel().toVerifiedState(), currentIdentity.getDateAdded().getTime());
1888                     }
1889
1890                     ProfileKey profileKey = null;
1891                     try {
1892                         profileKey = record.profileKey == null ? null : new ProfileKey(Base64.decode(record.profileKey));
1893                     } catch (InvalidInputException ignored) {
1894                     }
1895                     out.write(new DeviceContact(record.getAddress(), Optional.fromNullable(record.name),
1896                             createContactAvatarAttachment(record.number), Optional.fromNullable(record.color),
1897                             Optional.fromNullable(verifiedMessage), Optional.fromNullable(profileKey), record.blocked,
1898                             Optional.of(record.messageExpirationTime),
1899                             Optional.fromNullable(record.inboxPosition), record.archived));
1900                 }
1901
1902                 if (account.getProfileKey() != null) {
1903                     // Send our own profile key as well
1904                     out.write(new DeviceContact(account.getSelfAddress(),
1905                             Optional.absent(), Optional.absent(),
1906                             Optional.absent(), Optional.absent(),
1907                             Optional.of(account.getProfileKey()),
1908                             false, Optional.absent(), Optional.absent(), false));
1909                 }
1910             }
1911
1912             if (contactsFile.exists() && contactsFile.length() > 0) {
1913                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
1914                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1915                             .withStream(contactsFileStream)
1916                             .withContentType("application/octet-stream")
1917                             .withLength(contactsFile.length())
1918                             .build();
1919
1920                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
1921                 }
1922             }
1923         } finally {
1924             try {
1925                 Files.delete(contactsFile.toPath());
1926             } catch (IOException e) {
1927                 System.err.println("Failed to delete contacts temp file “" + contactsFile + "”: " + e.getMessage());
1928             }
1929         }
1930     }
1931
1932     private void sendBlockedList() throws IOException, UntrustedIdentityException {
1933         List<SignalServiceAddress> addresses = new ArrayList<>();
1934         for (ContactInfo record : account.getContactStore().getContacts()) {
1935             if (record.blocked) {
1936                 addresses.add(record.getAddress());
1937             }
1938         }
1939         List<byte[]> groupIds = new ArrayList<>();
1940         for (GroupInfo record : account.getGroupStore().getGroups()) {
1941             if (record.blocked) {
1942                 groupIds.add(record.groupId);
1943             }
1944         }
1945         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
1946     }
1947
1948     private void sendVerifiedMessage(SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel) throws IOException, UntrustedIdentityException {
1949         VerifiedMessage verifiedMessage = new VerifiedMessage(destination, identityKey, trustLevel.toVerifiedState(), System.currentTimeMillis());
1950         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
1951     }
1952
1953     public List<ContactInfo> getContacts() {
1954         return account.getContactStore().getContacts();
1955     }
1956
1957     public ContactInfo getContact(String number) {
1958         return account.getContactStore().getContact(Util.getSignalServiceAddressFromIdentifier(number));
1959     }
1960
1961     public GroupInfo getGroup(byte[] groupId) {
1962         return account.getGroupStore().getGroup(groupId);
1963     }
1964
1965     public List<JsonIdentityKeyStore.Identity> getIdentities() {
1966         return account.getSignalProtocolStore().getIdentities();
1967     }
1968
1969     public List<JsonIdentityKeyStore.Identity> getIdentities(String number) throws InvalidNumberException {
1970         return account.getSignalProtocolStore().getIdentities(canonicalizeAndResolveSignalServiceAddress(number));
1971     }
1972
1973     /**
1974      * Trust this the identity with this fingerprint
1975      *
1976      * @param name        username of the identity
1977      * @param fingerprint Fingerprint
1978      */
1979     public boolean trustIdentityVerified(String name, byte[] fingerprint) throws InvalidNumberException {
1980         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
1981         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
1982         if (ids == null) {
1983             return false;
1984         }
1985         for (JsonIdentityKeyStore.Identity id : ids) {
1986             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
1987                 continue;
1988             }
1989
1990             account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1991             try {
1992                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1993             } catch (IOException | UntrustedIdentityException e) {
1994                 e.printStackTrace();
1995             }
1996             account.save();
1997             return true;
1998         }
1999         return false;
2000     }
2001
2002     /**
2003      * Trust this the identity with this safety number
2004      *
2005      * @param name         username of the identity
2006      * @param safetyNumber Safety number
2007      */
2008     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) throws InvalidNumberException {
2009         SignalServiceAddress address = canonicalizeAndResolveSignalServiceAddress(name);
2010         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2011         if (ids == null) {
2012             return false;
2013         }
2014         for (JsonIdentityKeyStore.Identity id : ids) {
2015             if (!safetyNumber.equals(computeSafetyNumber(address, id.getIdentityKey()))) {
2016                 continue;
2017             }
2018
2019             account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2020             try {
2021                 sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
2022             } catch (IOException | UntrustedIdentityException e) {
2023                 e.printStackTrace();
2024             }
2025             account.save();
2026             return true;
2027         }
2028         return false;
2029     }
2030
2031     /**
2032      * Trust all keys of this identity without verification
2033      *
2034      * @param name username of the identity
2035      */
2036     public boolean trustIdentityAllKeys(String name) {
2037         SignalServiceAddress address = resolveSignalServiceAddress(name);
2038         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(address);
2039         if (ids == null) {
2040             return false;
2041         }
2042         for (JsonIdentityKeyStore.Identity id : ids) {
2043             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2044                 account.getSignalProtocolStore().setIdentityTrustLevel(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2045                 try {
2046                     sendVerifiedMessage(address, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2047                 } catch (IOException | UntrustedIdentityException e) {
2048                     e.printStackTrace();
2049                 }
2050             }
2051         }
2052         account.save();
2053         return true;
2054     }
2055
2056     public String computeSafetyNumber(SignalServiceAddress theirAddress, IdentityKey theirIdentityKey) {
2057         return Utils.computeSafetyNumber(account.getSelfAddress(), getIdentity(), theirAddress, theirIdentityKey);
2058     }
2059
2060     public SignalServiceAddress canonicalizeAndResolveSignalServiceAddress(String identifier) throws InvalidNumberException {
2061         String canonicalizedNumber = UuidUtil.isUuid(identifier) ? identifier : Util.canonicalizeNumber(identifier, account.getUsername());
2062         return resolveSignalServiceAddress(canonicalizedNumber);
2063     }
2064
2065     public SignalServiceAddress resolveSignalServiceAddress(String identifier) {
2066         SignalServiceAddress address = Util.getSignalServiceAddressFromIdentifier(identifier);
2067
2068         return resolveSignalServiceAddress(address);
2069     }
2070
2071     public SignalServiceAddress resolveSignalServiceAddress(SignalServiceAddress address) {
2072         if (address.matches(account.getSelfAddress())) {
2073             return account.getSelfAddress();
2074         }
2075
2076         return account.getRecipientStore().resolveServiceAddress(address);
2077     }
2078
2079     public interface ReceiveMessageHandler {
2080
2081         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2082     }
2083 }