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.JsonStickerPack;
  25 import org.asamk.signal.NotAGroupMemberException;
  26 import org.asamk.signal.StickerPackInvalidException;
  27 import org.asamk.signal.TrustLevel;
  28 import org.asamk.signal.UserAlreadyExists;
  29 import org.asamk.signal.storage.SignalAccount;
  30 import org.asamk.signal.storage.contacts.ContactInfo;
  31 import org.asamk.signal.storage.groups.GroupInfo;
  32 import org.asamk.signal.storage.groups.JsonGroupStore;
  33 import org.asamk.signal.storage.protocol.JsonIdentityKeyStore;
  34 import org.asamk.signal.storage.threads.ThreadInfo;
  35 import org.asamk.signal.util.IOUtils;
  36 import org.asamk.signal.util.Util;
  37 import org.signal.libsignal.metadata.InvalidMetadataMessageException;
  38 import org.signal.libsignal.metadata.InvalidMetadataVersionException;
  39 import org.signal.libsignal.metadata.ProtocolDuplicateMessageException;
  40 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  41 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  42 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  43 import org.signal.libsignal.metadata.ProtocolInvalidVersionException;
  44 import org.signal.libsignal.metadata.ProtocolLegacyMessageException;
  45 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  46 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  47 import org.signal.libsignal.metadata.SelfSendException;
  48 import org.signal.libsignal.metadata.certificate.InvalidCertificateException;
  49 import org.signal.zkgroup.InvalidInputException;
  50 import org.signal.zkgroup.VerificationFailedException;
  51 import org.signal.zkgroup.profiles.ProfileKey;
  52 import org.whispersystems.libsignal.IdentityKey;
  53 import org.whispersystems.libsignal.IdentityKeyPair;
  54 import org.whispersystems.libsignal.InvalidKeyException;
  55 import org.whispersystems.libsignal.InvalidMessageException;
  56 import org.whispersystems.libsignal.InvalidVersionException;
  57 import org.whispersystems.libsignal.ecc.Curve;
  58 import org.whispersystems.libsignal.ecc.ECKeyPair;
  59 import org.whispersystems.libsignal.ecc.ECPublicKey;
  60 import org.whispersystems.libsignal.state.PreKeyRecord;
  61 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  62 import org.whispersystems.libsignal.util.KeyHelper;
  63 import org.whispersystems.libsignal.util.Medium;
  64 import org.whispersystems.libsignal.util.Pair;
  65 import org.whispersystems.libsignal.util.guava.Optional;
  66 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  67 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  68 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  69 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  70 import org.whispersystems.signalservice.api.crypto.InvalidCiphertextException;
  71 import org.whispersystems.signalservice.api.crypto.ProfileCipher;
  72 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  73 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccess;
  74 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
  75 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  76 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  77 import org.whispersystems.signalservice.api.messages.SignalServiceAttachment;
  78 import org.whispersystems.signalservice.api.messages.SignalServiceAttachmentPointer;
  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.SignalServiceStickerManifest;
  85 import org.whispersystems.signalservice.api.messages.SignalServiceStickerManifest.StickerInfo;
  86 import org.whispersystems.signalservice.api.messages.multidevice.BlockedListMessage;
  87 import org.whispersystems.signalservice.api.messages.multidevice.ContactsMessage;
  88 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContact;
  89 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsInputStream;
  90 import org.whispersystems.signalservice.api.messages.multidevice.DeviceContactsOutputStream;
  91 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroup;
  92 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsInputStream;
  93 import org.whispersystems.signalservice.api.messages.multidevice.DeviceGroupsOutputStream;
  94 import org.whispersystems.signalservice.api.messages.multidevice.DeviceInfo;
  95 import org.whispersystems.signalservice.api.messages.multidevice.RequestMessage;
  96 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
  97 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
  98 import org.whispersystems.signalservice.api.messages.multidevice.VerifiedMessage;
  99 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
 100 import org.whispersystems.signalservice.api.push.ContactTokenDetails;
 101 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 102 import org.whispersystems.signalservice.api.push.exceptions.AuthorizationFailedException;
 103 import org.whispersystems.signalservice.api.push.exceptions.EncapsulatedExceptions;
 104 import org.whispersystems.signalservice.api.push.exceptions.NetworkFailureException;
 105 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 106 import org.whispersystems.signalservice.api.util.InvalidNumberException;
 107 import org.whispersystems.signalservice.api.util.SleepTimer;
 108 import org.whispersystems.signalservice.api.util.StreamDetails;
 109 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
 110 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
 111 import org.whispersystems.signalservice.internal.push.StickerUploadAttributes;
 112 import org.whispersystems.signalservice.internal.push.StickerUploadAttributesResponse;
 113 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
 114 import org.whispersystems.signalservice.internal.util.Hex;
 115 import org.whispersystems.util.Base64;
 116
 117 import java.io.ByteArrayInputStream;
 118 import java.io.File;
 119 import java.io.FileInputStream;
 120 import java.io.FileNotFoundException;
 121 import java.io.FileOutputStream;
 122 import java.io.IOException;
 123 import java.io.InputStream;
 124 import java.io.OutputStream;
 125 import java.net.URI;
 126 import java.nio.file.Files;
 127 import java.nio.file.Paths;
 128 import java.nio.file.StandardCopyOption;
 129 import java.util.ArrayList;
 130 import java.util.Arrays;
 131 import java.util.Collection;
 132 import java.util.Collections;
 133 import java.util.Date;
 134 import java.util.HashMap;
 135 import java.util.HashSet;
 136 import java.util.LinkedList;
 137 import java.util.List;
 138 import java.util.Locale;
 139 import java.util.Map;
 140 import java.util.Objects;
 141 import java.util.Set;
 142 import java.util.concurrent.TimeUnit;
 143 import java.util.concurrent.TimeoutException;
 144 import java.util.zip.ZipEntry;
 145 import java.util.zip.ZipFile;
 146
 147 public class Manager implements Signal {
 148
 149     private static final SignalServiceProfile.Capabilities capabilities = new SignalServiceProfile.Capabilities(false, false);
 150
 151     private final String settingsPath;
 152     private final String dataPath;
 153     private final String attachmentsPath;
 154     private final String avatarsPath;
 155     private final SleepTimer timer = new UptimeSleepTimer();
 156
 157     private SignalAccount account;
 158     private String username;
 159     private SignalServiceAccountManager accountManager;
 160     private SignalServiceMessagePipe messagePipe = null;
 161     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
 162
 163     public Manager(String username, String settingsPath) {
 164         this.username = username;
 165         this.settingsPath = settingsPath;
 166         this.dataPath = this.settingsPath + "/data";
 167         this.attachmentsPath = this.settingsPath + "/attachments";
 168         this.avatarsPath = this.settingsPath + "/avatars";
 169
 170     }
 171
 172     public String getUsername() {
 173         return username;
 174     }
 175
 176     private SignalServiceAddress getSelfAddress() {
 177         return new SignalServiceAddress(null, username);
 178     }
 179
 180     private SignalServiceAccountManager getSignalServiceAccountManager() {
 181         return new SignalServiceAccountManager(BaseConfig.serviceConfiguration, null, account.getUsername(), account.getPassword(), account.getDeviceId(), BaseConfig.USER_AGENT, timer);
 182     }
 183
 184     private IdentityKey getIdentity() {
 185         return account.getSignalProtocolStore().getIdentityKeyPair().getPublicKey();
 186     }
 187
 188     public int getDeviceId() {
 189         return account.getDeviceId();
 190     }
 191
 192     private String getMessageCachePath() {
 193         return this.dataPath + "/" + username + ".d/msg-cache";
 194     }
 195
 196     private String getMessageCachePath(String sender) {
 197         return getMessageCachePath() + "/" + sender.replace("/", "_");
 198     }
 199
 200     private File getMessageCacheFile(String sender, long now, long timestamp) throws IOException {
 201         String cachePath = getMessageCachePath(sender);
 202         IOUtils.createPrivateDirectories(cachePath);
 203         return new File(cachePath + "/" + now + "_" + timestamp);
 204     }
 205
 206     public boolean userHasKeys() {
 207         return account != null && account.getSignalProtocolStore() != null;
 208     }
 209
 210     public void init() throws IOException {
 211         if (!SignalAccount.userExists(dataPath, username)) {
 212             return;
 213         }
 214         account = SignalAccount.load(dataPath, username);
 215
 216         migrateLegacyConfigs();
 217
 218         accountManager = getSignalServiceAccountManager();
 219         try {
 220             if (account.isRegistered() && accountManager.getPreKeysCount() < BaseConfig.PREKEY_MINIMUM_COUNT) {
 221                 refreshPreKeys();
 222                 account.save();
 223             }
 224         } catch (AuthorizationFailedException e) {
 225             System.err.println("Authorization failed, was the number registered elsewhere?");
 226             throw e;
 227         }
 228     }
 229
 230     private void migrateLegacyConfigs() {
 231         // Copy group avatars that were previously stored in the attachments folder
 232         // to the new avatar folder
 233         if (JsonGroupStore.groupsWithLegacyAvatarId.size() > 0) {
 234             for (GroupInfo g : JsonGroupStore.groupsWithLegacyAvatarId) {
 235                 File avatarFile = getGroupAvatarFile(g.groupId);
 236                 File attachmentFile = getAttachmentFile(g.getAvatarId());
 237                 if (!avatarFile.exists() && attachmentFile.exists()) {
 238                     try {
 239                         IOUtils.createPrivateDirectories(avatarsPath);
 240                         Files.copy(attachmentFile.toPath(), avatarFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 241                     } catch (Exception e) {
 242                         // Ignore
 243                     }
 244                 }
 245             }
 246             JsonGroupStore.groupsWithLegacyAvatarId.clear();
 247             account.save();
 248         }
 249         if (account.getProfileKey() == null) {
 250             // Old config file, creating new profile key
 251             account.setProfileKey(KeyUtils.createProfileKey());
 252             account.save();
 253         }
 254     }
 255
 256     private void createNewIdentity() throws IOException {
 257         IdentityKeyPair identityKey = KeyHelper.generateIdentityKeyPair();
 258         int registrationId = KeyHelper.generateRegistrationId(false);
 259         if (username == null) {
 260             account = SignalAccount.createTemporaryAccount(identityKey, registrationId);
 261         } else {
 262             ProfileKey profileKey = KeyUtils.createProfileKey();
 263             account = SignalAccount.create(dataPath, username, identityKey, registrationId, profileKey);
 264             account.save();
 265         }
 266     }
 267
 268     public boolean isRegistered() {
 269         return account != null && account.isRegistered();
 270     }
 271
 272     public void register(boolean voiceVerification) throws IOException {
 273         if (account == null) {
 274             createNewIdentity();
 275         }
 276         account.setPassword(KeyUtils.createPassword());
 277         accountManager = getSignalServiceAccountManager();
 278
 279         if (voiceVerification) {
 280             accountManager.requestVoiceVerificationCode(Locale.getDefault(), Optional.absent(), Optional.absent());
 281         } else {
 282             accountManager.requestSmsVerificationCode(false, Optional.absent(), Optional.absent());
 283         }
 284
 285         account.setRegistered(false);
 286         account.save();
 287     }
 288
 289     public void updateAccountAttributes() throws IOException {
 290         accountManager.setAccountAttributes(account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, account.getRegistrationLockPin(), account.getRegistrationLock(), getSelfUnidentifiedAccessKey(), false, capabilities);
 291     }
 292
 293     public void setProfileName(String name) throws IOException {
 294         accountManager.setProfileName(account.getProfileKey(), name);
 295     }
 296
 297     public void setProfileAvatar(File avatar) throws IOException {
 298         final StreamDetails streamDetails = Utils.createStreamDetailsFromFile(avatar);
 299         accountManager.setProfileAvatar(account.getProfileKey(), streamDetails);
 300         streamDetails.getStream().close();
 301     }
 302
 303     public void removeProfileAvatar() throws IOException {
 304         accountManager.setProfileAvatar(account.getProfileKey(), null);
 305     }
 306
 307     public void unregister() throws IOException {
 308         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 309         // If this is the master device, other users can't send messages to this number anymore.
 310         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 311         accountManager.setGcmId(Optional.absent());
 312
 313         account.setRegistered(false);
 314         account.save();
 315     }
 316
 317     public String getDeviceLinkUri() throws TimeoutException, IOException {
 318         if (account == null) {
 319             createNewIdentity();
 320         }
 321         account.setPassword(KeyUtils.createPassword());
 322         accountManager = getSignalServiceAccountManager();
 323         String uuid = accountManager.getNewDeviceUuid();
 324
 325         return Utils.createDeviceLinkUri(new Utils.DeviceLinkInfo(uuid, getIdentity().getPublicKey()));
 326     }
 327
 328     public void finishDeviceLink(String deviceName) throws IOException, InvalidKeyException, TimeoutException, UserAlreadyExists {
 329         account.setSignalingKey(KeyUtils.createSignalingKey());
 330         SignalServiceAccountManager.NewDeviceRegistrationReturn ret = accountManager.finishNewDeviceRegistration(account.getSignalProtocolStore().getIdentityKeyPair(), account.getSignalingKey(), false, true, account.getSignalProtocolStore().getLocalRegistrationId(), deviceName);
 331
 332         username = ret.getNumber();
 333         // TODO do this check before actually registering
 334         if (SignalAccount.userExists(dataPath, username)) {
 335             throw new UserAlreadyExists(username, SignalAccount.getFileName(dataPath, username));
 336         }
 337
 338         // Create new account with the synced identity
 339         byte[] profileKeyBytes = ret.getProfileKey();
 340         ProfileKey profileKey;
 341         if (profileKeyBytes == null) {
 342             profileKey = KeyUtils.createProfileKey();
 343         } else {
 344             try {
 345                 profileKey = new ProfileKey(profileKeyBytes);
 346             } catch (InvalidInputException e) {
 347                 throw new IOException("Received invalid profileKey", e);
 348             }
 349         }
 350         account = SignalAccount.createLinkedAccount(dataPath, username, account.getPassword(), ret.getDeviceId(), ret.getIdentity(), account.getSignalProtocolStore().getLocalRegistrationId(), account.getSignalingKey(), profileKey);
 351
 352         refreshPreKeys();
 353
 354         requestSyncGroups();
 355         requestSyncContacts();
 356         requestSyncBlocked();
 357         requestSyncConfiguration();
 358
 359         account.save();
 360     }
 361
 362     public List<DeviceInfo> getLinkedDevices() throws IOException {
 363         List<DeviceInfo> devices = accountManager.getDevices();
 364         account.setMultiDevice(devices.size() > 1);
 365         account.save();
 366         return devices;
 367     }
 368
 369     public void removeLinkedDevices(int deviceId) throws IOException {
 370         accountManager.removeDevice(deviceId);
 371         List<DeviceInfo> devices = accountManager.getDevices();
 372         account.setMultiDevice(devices.size() > 1);
 373         account.save();
 374     }
 375
 376     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 377         Utils.DeviceLinkInfo info = Utils.parseDeviceLinkUri(linkUri);
 378
 379         addDevice(info.deviceIdentifier, info.deviceKey);
 380     }
 381
 382     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 383         IdentityKeyPair identityKeyPair = account.getSignalProtocolStore().getIdentityKeyPair();
 384         String verificationCode = accountManager.getNewDeviceVerificationCode();
 385
 386         accountManager.addDevice(deviceIdentifier, deviceKey, identityKeyPair, Optional.of(account.getProfileKey().serialize()), verificationCode);
 387         account.setMultiDevice(true);
 388         account.save();
 389     }
 390
 391     private List<PreKeyRecord> generatePreKeys() {
 392         List<PreKeyRecord> records = new ArrayList<>(BaseConfig.PREKEY_BATCH_SIZE);
 393
 394         final int offset = account.getPreKeyIdOffset();
 395         for (int i = 0; i < BaseConfig.PREKEY_BATCH_SIZE; i++) {
 396             int preKeyId = (offset + i) % Medium.MAX_VALUE;
 397             ECKeyPair keyPair = Curve.generateKeyPair();
 398             PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);
 399
 400             records.add(record);
 401         }
 402
 403         account.addPreKeys(records);
 404         account.save();
 405
 406         return records;
 407     }
 408
 409     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 410         try {
 411             ECKeyPair keyPair = Curve.generateKeyPair();
 412             byte[] signature = Curve.calculateSignature(identityKeyPair.getPrivateKey(), keyPair.getPublicKey().serialize());
 413             SignedPreKeyRecord record = new SignedPreKeyRecord(account.getNextSignedPreKeyId(), System.currentTimeMillis(), keyPair, signature);
 414
 415             account.addSignedPreKey(record);
 416             account.save();
 417
 418             return record;
 419         } catch (InvalidKeyException e) {
 420             throw new AssertionError(e);
 421         }
 422     }
 423
 424     public void verifyAccount(String verificationCode, String pin) throws IOException {
 425         verificationCode = verificationCode.replace("-", "");
 426         account.setSignalingKey(KeyUtils.createSignalingKey());
 427         // TODO make unrestricted unidentified access configurable
 428         accountManager.verifyAccountWithCode(verificationCode, account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, pin, null, getSelfUnidentifiedAccessKey(), false, capabilities);
 429
 430         //accountManager.setGcmId(Optional.of(GoogleCloudMessaging.getInstance(this).register(REGISTRATION_ID)));
 431         account.setRegistered(true);
 432         account.setRegistrationLockPin(pin);
 433
 434         refreshPreKeys();
 435         account.save();
 436     }
 437
 438     public void setRegistrationLockPin(Optional<String> pin) throws IOException {
 439         if (pin.isPresent()) {
 440             account.setRegistrationLockPin(pin.get());
 441             throw new RuntimeException("Not implemented anymore, will be replaced with KBS");
 442         } else {
 443             account.setRegistrationLockPin(null);
 444             accountManager.removeV1Pin();
 445         }
 446         account.save();
 447     }
 448
 449     private void refreshPreKeys() throws IOException {
 450         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 451         final IdentityKeyPair identityKeyPair = account.getSignalProtocolStore().getIdentityKeyPair();
 452         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 453
 454         accountManager.setPreKeys(getIdentity(), signedPreKeyRecord, oneTimePreKeys);
 455     }
 456
 457     private SignalServiceMessageReceiver getMessageReceiver() {
 458         return new SignalServiceMessageReceiver(BaseConfig.serviceConfiguration, null, username, account.getPassword(), account.getDeviceId(), account.getSignalingKey(), BaseConfig.USER_AGENT, null, timer);
 459     }
 460
 461     private SignalServiceMessageSender getMessageSender() {
 462         return new SignalServiceMessageSender(BaseConfig.serviceConfiguration, null, username, account.getPassword(),
 463                 account.getDeviceId(), account.getSignalProtocolStore(), BaseConfig.USER_AGENT, account.isMultiDevice(), Optional.fromNullable(messagePipe), Optional.fromNullable(unidentifiedMessagePipe), Optional.absent());
 464     }
 465
 466     private SignalServiceProfile getRecipientProfile(SignalServiceAddress address, Optional<UnidentifiedAccess> unidentifiedAccess) throws IOException {
 467         SignalServiceMessagePipe pipe = unidentifiedMessagePipe != null && unidentifiedAccess.isPresent() ? unidentifiedMessagePipe
 468                 : messagePipe;
 469
 470         if (pipe != null) {
 471             try {
 472                 return pipe.getProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).getProfile();
 473             } catch (IOException ignored) {
 474             }
 475         }
 476
 477         SignalServiceMessageReceiver receiver = getMessageReceiver();
 478         try {
 479             return receiver.retrieveProfile(address, Optional.absent(), unidentifiedAccess, SignalServiceProfile.RequestType.PROFILE).getProfile();
 480         } catch (VerificationFailedException e) {
 481             throw new AssertionError(e);
 482         }
 483     }
 484
 485     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(byte[] groupId) throws IOException {
 486         File file = getGroupAvatarFile(groupId);
 487         if (!file.exists()) {
 488             return Optional.absent();
 489         }
 490
 491         return Optional.of(Utils.createAttachment(file));
 492     }
 493
 494     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(String number) throws IOException {
 495         File file = getContactAvatarFile(number);
 496         if (!file.exists()) {
 497             return Optional.absent();
 498         }
 499
 500         return Optional.of(Utils.createAttachment(file));
 501     }
 502
 503     private GroupInfo getGroupForSending(byte[] groupId) throws GroupNotFoundException, NotAGroupMemberException {
 504         GroupInfo g = account.getGroupStore().getGroup(groupId);
 505         if (g == null) {
 506             throw new GroupNotFoundException(groupId);
 507         }
 508         for (String member : g.members) {
 509             if (member.equals(this.username)) {
 510                 return g;
 511             }
 512         }
 513         throw new NotAGroupMemberException(groupId, g.name);
 514     }
 515
 516     public List<GroupInfo> getGroups() {
 517         return account.getGroupStore().getGroups();
 518     }
 519
 520     @Override
 521     public void sendGroupMessage(String messageText, List<String> attachments,
 522                                  byte[] groupId)
 523             throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 524         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 525         if (attachments != null) {
 526             messageBuilder.withAttachments(Utils.getSignalServiceAttachments(attachments));
 527         }
 528         if (groupId != null) {
 529             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 530                     .withId(groupId)
 531                     .build();
 532             messageBuilder.asGroupMessage(group);
 533         }
 534         ThreadInfo thread = account.getThreadStore().getThread(Base64.encodeBytes(groupId));
 535         if (thread != null) {
 536             messageBuilder.withExpiration(thread.messageExpirationTime);
 537         }
 538
 539         final GroupInfo g = getGroupForSending(groupId);
 540
 541         // Don't send group message to ourself
 542         final List<String> membersSend = new ArrayList<>(g.members);
 543         membersSend.remove(this.username);
 544         sendMessageLegacy(messageBuilder, membersSend);
 545     }
 546
 547     public void sendGroupMessageReaction(String emoji, boolean remove, SignalServiceAddress targetAuthor,
 548                                          long targetSentTimestamp, byte[] groupId)
 549             throws IOException, EncapsulatedExceptions, AttachmentInvalidException {
 550         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, targetAuthor, targetSentTimestamp);
 551         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 552                 .withReaction(reaction)
 553                 .withProfileKey(account.getProfileKey().serialize());
 554         if (groupId != null) {
 555             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 556                     .withId(groupId)
 557                     .build();
 558             messageBuilder.asGroupMessage(group);
 559         }
 560         final GroupInfo g = getGroupForSending(groupId);
 561         // Don't send group message to ourself
 562         final List<String> membersSend = new ArrayList<>(g.members);
 563         membersSend.remove(this.username);
 564         sendMessageLegacy(messageBuilder, membersSend);
 565     }
 566
 567     public void sendQuitGroupMessage(byte[] groupId) throws GroupNotFoundException, IOException, EncapsulatedExceptions {
 568         SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 569                 .withId(groupId)
 570                 .build();
 571
 572         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 573                 .asGroupMessage(group);
 574
 575         final GroupInfo g = getGroupForSending(groupId);
 576         g.members.remove(this.username);
 577         account.getGroupStore().updateGroup(g);
 578
 579         sendMessageLegacy(messageBuilder, g.members);
 580     }
 581
 582     private byte[] sendUpdateGroupMessage(byte[] groupId, String name, Collection<String> members, String avatarFile) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 583         GroupInfo g;
 584         if (groupId == null) {
 585             // Create new group
 586             g = new GroupInfo(KeyUtils.createGroupId());
 587             g.members.add(username);
 588         } else {
 589             g = getGroupForSending(groupId);
 590         }
 591
 592         if (name != null) {
 593             g.name = name;
 594         }
 595
 596         if (members != null) {
 597             Set<String> newMembers = new HashSet<>();
 598             for (String member : members) {
 599                 try {
 600                     member = Utils.canonicalizeNumber(member, username);
 601                 } catch (InvalidNumberException e) {
 602                     System.err.println("Failed to add member \"" + member + "\" to group: " + e.getMessage());
 603                     System.err.println("Aborting…");
 604                     System.exit(1);
 605                 }
 606                 if (g.members.contains(member)) {
 607                     continue;
 608                 }
 609                 newMembers.add(member);
 610                 g.members.add(member);
 611             }
 612             final List<ContactTokenDetails> contacts = accountManager.getContacts(newMembers);
 613             if (contacts.size() != newMembers.size()) {
 614                 // Some of the new members are not registered on Signal
 615                 for (ContactTokenDetails contact : contacts) {
 616                     newMembers.remove(contact.getNumber());
 617                 }
 618                 System.err.println("Failed to add members " + Util.join(", ", newMembers) + " to group: Not registered on Signal");
 619                 System.err.println("Aborting…");
 620                 System.exit(1);
 621             }
 622         }
 623
 624         if (avatarFile != null) {
 625             IOUtils.createPrivateDirectories(avatarsPath);
 626             File aFile = getGroupAvatarFile(g.groupId);
 627             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 628         }
 629
 630         account.getGroupStore().updateGroup(g);
 631
 632         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 633
 634         // Don't send group message to ourself
 635         final List<String> membersSend = new ArrayList<>(g.members);
 636         membersSend.remove(this.username);
 637         sendMessageLegacy(messageBuilder, membersSend);
 638         return g.groupId;
 639     }
 640
 641     private void sendUpdateGroupMessage(byte[] groupId, String recipient) throws IOException, EncapsulatedExceptions {
 642         if (groupId == null) {
 643             return;
 644         }
 645         GroupInfo g = getGroupForSending(groupId);
 646
 647         if (!g.members.contains(recipient)) {
 648             return;
 649         }
 650
 651         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 652
 653         // Send group message only to the recipient who requested it
 654         final List<String> membersSend = new ArrayList<>();
 655         membersSend.add(recipient);
 656         sendMessageLegacy(messageBuilder, membersSend);
 657     }
 658
 659     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfo g) {
 660         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 661                 .withId(g.groupId)
 662                 .withName(g.name)
 663                 .withMembers(new ArrayList<>(g.getMembers()));
 664
 665         File aFile = getGroupAvatarFile(g.groupId);
 666         if (aFile.exists()) {
 667             try {
 668                 group.withAvatar(Utils.createAttachment(aFile));
 669             } catch (IOException e) {
 670                 throw new AttachmentInvalidException(aFile.toString(), e);
 671             }
 672         }
 673
 674         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 675                 .asGroupMessage(group.build());
 676
 677         ThreadInfo thread = account.getThreadStore().getThread(Base64.encodeBytes(g.groupId));
 678         if (thread != null) {
 679             messageBuilder.withExpiration(thread.messageExpirationTime);
 680         }
 681
 682         return messageBuilder;
 683     }
 684
 685     private void sendGroupInfoRequest(byte[] groupId, String recipient) throws IOException, EncapsulatedExceptions {
 686         if (groupId == null) {
 687             return;
 688         }
 689
 690         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 691                 .withId(groupId);
 692
 693         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 694                 .asGroupMessage(group.build());
 695
 696         ThreadInfo thread = account.getThreadStore().getThread(Base64.encodeBytes(groupId));
 697         if (thread != null) {
 698             messageBuilder.withExpiration(thread.messageExpirationTime);
 699         }
 700
 701         // Send group info request message to the recipient who sent us a message with this groupId
 702         final List<String> membersSend = new ArrayList<>();
 703         membersSend.add(recipient);
 704         sendMessageLegacy(messageBuilder, membersSend);
 705     }
 706
 707     @Override
 708     public void sendMessage(String message, List<String> attachments, String recipient)
 709             throws EncapsulatedExceptions, AttachmentInvalidException, IOException {
 710         List<String> recipients = new ArrayList<>(1);
 711         recipients.add(recipient);
 712         sendMessage(message, attachments, recipients);
 713     }
 714
 715     @Override
 716     public void sendMessage(String messageText, List<String> attachments,
 717                             List<String> recipients)
 718             throws IOException, EncapsulatedExceptions, AttachmentInvalidException {
 719         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 720         if (attachments != null) {
 721             List<SignalServiceAttachment> attachmentStreams = Utils.getSignalServiceAttachments(attachments);
 722
 723             // Upload attachments here, so we only upload once even for multiple recipients
 724             SignalServiceMessageSender messageSender = getMessageSender();
 725             List<SignalServiceAttachment> attachmentPointers = new ArrayList<>(attachmentStreams.size());
 726             for (SignalServiceAttachment attachment : attachmentStreams) {
 727                 if (attachment.isStream()) {
 728                     attachmentPointers.add(messageSender.uploadAttachment(attachment.asStream()));
 729                 } else if (attachment.isPointer()) {
 730                     attachmentPointers.add(attachment.asPointer());
 731                 }
 732             }
 733
 734             messageBuilder.withAttachments(attachmentPointers);
 735         }
 736         messageBuilder.withProfileKey(account.getProfileKey().serialize());
 737         sendMessageLegacy(messageBuilder, recipients);
 738     }
 739
 740     public void sendMessageReaction(String emoji, boolean remove, SignalServiceAddress targetAuthor,
 741                                     long targetSentTimestamp, List<String> recipients)
 742             throws IOException, EncapsulatedExceptions, AttachmentInvalidException {
 743         SignalServiceDataMessage.Reaction reaction = new SignalServiceDataMessage.Reaction(emoji, remove, targetAuthor, targetSentTimestamp);
 744         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 745                 .withReaction(reaction)
 746                 .withProfileKey(account.getProfileKey().serialize());
 747         sendMessageLegacy(messageBuilder, recipients);
 748     }
 749
 750     @Override
 751     public void sendEndSessionMessage(List<String> recipients) throws IOException, EncapsulatedExceptions {
 752         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 753                 .asEndSessionMessage();
 754
 755         sendMessageLegacy(messageBuilder, recipients);
 756     }
 757
 758     @Override
 759     public String getContactName(String number) throws InvalidNumberException {
 760         String canonicalizedNumber = Utils.canonicalizeNumber(number, username);
 761         ContactInfo contact = account.getContactStore().getContact(canonicalizedNumber);
 762         if (contact == null) {
 763             return "";
 764         } else {
 765             return contact.name;
 766         }
 767     }
 768
 769     @Override
 770     public void setContactName(String number, String name) throws InvalidNumberException {
 771         String canonicalizedNumber = Utils.canonicalizeNumber(number, username);
 772         ContactInfo contact = account.getContactStore().getContact(canonicalizedNumber);
 773         if (contact == null) {
 774             contact = new ContactInfo();
 775             contact.number = canonicalizedNumber;
 776             System.err.println("Add contact " + canonicalizedNumber + " named " + name);
 777         } else {
 778             System.err.println("Updating contact " + canonicalizedNumber + " name " + contact.name + " -> " + name);
 779         }
 780         contact.name = name;
 781         account.getContactStore().updateContact(contact);
 782         account.save();
 783     }
 784
 785     @Override
 786     public void setContactBlocked(String number, boolean blocked) throws InvalidNumberException {
 787         number = Utils.canonicalizeNumber(number, username);
 788         ContactInfo contact = account.getContactStore().getContact(number);
 789         if (contact == null) {
 790             contact = new ContactInfo();
 791             contact.number = number;
 792             System.err.println("Adding and " + (blocked ? "blocking" : "unblocking") + " contact " + number);
 793         } else {
 794             System.err.println((blocked ? "Blocking" : "Unblocking") + " contact " + number);
 795         }
 796         contact.blocked = blocked;
 797         account.getContactStore().updateContact(contact);
 798         account.save();
 799     }
 800
 801     @Override
 802     public void setGroupBlocked(final byte[] groupId, final boolean blocked) throws GroupNotFoundException {
 803         GroupInfo group = getGroup(groupId);
 804         if (group == null) {
 805             throw new GroupNotFoundException(groupId);
 806         } else {
 807             System.err.println((blocked ? "Blocking" : "Unblocking") + " group " + Base64.encodeBytes(groupId));
 808             group.blocked = blocked;
 809             account.getGroupStore().updateGroup(group);
 810             account.save();
 811         }
 812     }
 813
 814     @Override
 815     public List<byte[]> getGroupIds() {
 816         List<GroupInfo> groups = getGroups();
 817         List<byte[]> ids = new ArrayList<>(groups.size());
 818         for (GroupInfo group : groups) {
 819             ids.add(group.groupId);
 820         }
 821         return ids;
 822     }
 823
 824     @Override
 825     public String getGroupName(byte[] groupId) {
 826         GroupInfo group = getGroup(groupId);
 827         if (group == null) {
 828             return "";
 829         } else {
 830             return group.name;
 831         }
 832     }
 833
 834     @Override
 835     public List<String> getGroupMembers(byte[] groupId) {
 836         GroupInfo group = getGroup(groupId);
 837         if (group == null) {
 838             return new ArrayList<>();
 839         } else {
 840             return new ArrayList<>(group.members);
 841         }
 842     }
 843
 844     @Override
 845     public byte[] updateGroup(byte[] groupId, String name, List<String> members, String avatar) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 846         if (groupId.length == 0) {
 847             groupId = null;
 848         }
 849         if (name.isEmpty()) {
 850             name = null;
 851         }
 852         if (members.size() == 0) {
 853             members = null;
 854         }
 855         if (avatar.isEmpty()) {
 856             avatar = null;
 857         }
 858         return sendUpdateGroupMessage(groupId, name, members, avatar);
 859     }
 860
 861     /**
 862      * Change the expiration timer for a thread (number of groupId)
 863      *
 864      * @param numberOrGroupId
 865      * @param messageExpirationTimer
 866      */
 867     public void setExpirationTimer(String numberOrGroupId, int messageExpirationTimer) {
 868         ThreadInfo thread = account.getThreadStore().getThread(numberOrGroupId);
 869         thread.messageExpirationTime = messageExpirationTimer;
 870         account.getThreadStore().updateThread(thread);
 871     }
 872
 873     public String uploadStickerPack(String path) throws IOException, StickerPackInvalidException {
 874         JsonStickerPack pack = parseStickerPack(path);
 875
 876         if (pack.stickers == null) {
 877             throw new StickerPackInvalidException("Must set a 'stickers' field.");
 878         }
 879
 880         if (pack.stickers.isEmpty()) {
 881             throw new StickerPackInvalidException("Must include stickers.");
 882         }
 883
 884         List<StickerInfo> stickers = new ArrayList<>(pack.stickers.size());
 885         for (int i = 0; i < pack.stickers.size(); i++) {
 886             if (pack.stickers.get(i).file == null) {
 887                 throw new StickerPackInvalidException("Must set a 'file' field on each sticker.");
 888             }
 889             if (!stickerDataContainsPath(path, pack.stickers.get(i).file)) {
 890                 throw new StickerPackInvalidException("Could not find find " + pack.stickers.get(i).file);
 891             }
 892
 893             StickerInfo stickerInfo = new StickerInfo(i, Optional.fromNullable(pack.stickers.get(i).emoji).or(""));
 894             stickers.add(stickerInfo);
 895         }
 896
 897         boolean uniqueCover = false;
 898         StickerInfo cover = stickers.get(0);
 899         if (pack.cover != null) {
 900             if (pack.cover.file == null) {
 901                 throw new StickerPackInvalidException("Must set a 'file' field on the cover.");
 902             }
 903             if (!stickerDataContainsPath(path, pack.cover.file)) {
 904                 throw new StickerPackInvalidException("Could not find find cover " + pack.cover.file);
 905             }
 906
 907             uniqueCover = true;
 908             cover = new StickerInfo(pack.stickers.size(), Optional.fromNullable(pack.cover.emoji).or(""));
 909         }
 910
 911         SignalServiceStickerManifest manifest = new SignalServiceStickerManifest(
 912                 Optional.fromNullable(pack.title).or(""),
 913                 Optional.fromNullable(pack.author).or(""),
 914                 cover,
 915                 stickers);
 916
 917         SignalServiceMessageSender messageSender = new SignalServiceMessageSender(
 918                 BaseConfig.serviceConfiguration,
 919                 null,
 920                 username,
 921                 account.getPassword(),
 922                 account.getDeviceId(),
 923                 account.getSignalProtocolStore(),
 924                 BaseConfig.USER_AGENT,
 925                 account.isMultiDevice(),
 926                 Optional.fromNullable(messagePipe),
 927                 Optional.fromNullable(unidentifiedMessagePipe),
 928                 Optional.<SignalServiceMessageSender.EventListener>absent());
 929
 930         System.out.println("Starting upload process...");
 931         Pair<byte[], StickerUploadAttributesResponse> responsePair = messageSender.getStickerUploadAttributes(stickers.size() + (uniqueCover ? 1 : 0));
 932         byte[] packKey = responsePair.first();
 933         StickerUploadAttributesResponse response = responsePair.second();
 934
 935         System.out.println("Uploading manifest...");
 936         messageSender.uploadStickerManifest(manifest, packKey, response.getManifest());
 937
 938         Map<Integer, StickerUploadAttributes> attrById = new HashMap<>();
 939
 940         for (StickerUploadAttributes attr : response.getStickers()) {
 941             attrById.put(attr.getId(), attr);
 942         }
 943
 944         for (int i = 0; i < pack.stickers.size(); i++) {
 945             System.out.println("Uploading sticker " + (i+1) + "/" + pack.stickers.size() + "...");
 946             StickerUploadAttributes attr = attrById.get(i);
 947             if (attr == null) {
 948                 throw new StickerPackInvalidException("Upload attributes missing for id " + i);
 949             }
 950
 951             byte[] data = readStickerDataFromPath(path, pack.stickers.get(i).file);
 952             messageSender.uploadSticker(new ByteArrayInputStream(data), data.length, packKey, attr);
 953         }
 954
 955         if (uniqueCover) {
 956             System.out.println("Uploading unique cover...");
 957             StickerUploadAttributes attr = attrById.get(pack.stickers.size());
 958             if (attr == null) {
 959                 throw new StickerPackInvalidException("Upload attributes missing for cover with id " + pack.stickers.size());
 960             }
 961
 962             byte[] data = readStickerDataFromPath(path, pack.cover.file);
 963             messageSender.uploadSticker(new ByteArrayInputStream(data), data.length, packKey, attr);
 964         }
 965
 966         return "https://signal.art/addstickers/#pack_id=" + response.getPackId() + "&pack_key=" + Hex.toStringCondensed(packKey).replaceAll(" ", "");
 967     }
 968
 969     private static byte[] readStickerDataFromPath(String rootPath, String subFile) throws IOException, StickerPackInvalidException {
 970         if (rootPath.endsWith(".zip")) {
 971             ZipFile zip = new ZipFile(rootPath);
 972             ZipEntry entry = zip.getEntry(subFile);
 973             return IOUtils.readFully(zip.getInputStream(entry));
 974         } else if (rootPath.endsWith(".json")) {
 975             String dir = new File(rootPath).getParent();
 976             FileInputStream fis = new FileInputStream(new File(dir, subFile));
 977             return IOUtils.readFully(fis);
 978         } else {
 979             throw new StickerPackInvalidException("Must point to either a ZIP or JSON file.");
 980         }
 981     }
 982
 983     private static boolean stickerDataContainsPath(String rootPath, String subFile) throws IOException {
 984         if (rootPath.endsWith(".zip")) {
 985             ZipFile zip = new ZipFile(rootPath);
 986             return zip.getEntry(subFile) != null;
 987         } else if (rootPath.endsWith(".json")) {
 988             String dir = new File(rootPath).getParent();
 989             return new File(dir, subFile).exists();
 990         } else {
 991             return false;
 992         }
 993     }
 994
 995     private static JsonStickerPack parseStickerPack(String rootPath) throws IOException, StickerPackInvalidException {
 996         if (!stickerDataContainsPath(rootPath, "manifest.json")) {
 997             throw new StickerPackInvalidException("Could not find manifest.json");
 998         }
 999
1000         String json = new String(readStickerDataFromPath(rootPath, "manifest.json"));
1001
1002         return new ObjectMapper().readValue(json, JsonStickerPack.class);
1003     }
1004
1005     private void requestSyncGroups() throws IOException {
1006         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS).build();
1007         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1008         try {
1009             sendSyncMessage(message);
1010         } catch (UntrustedIdentityException e) {
1011             e.printStackTrace();
1012         }
1013     }
1014
1015     private void requestSyncContacts() throws IOException {
1016         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS).build();
1017         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1018         try {
1019             sendSyncMessage(message);
1020         } catch (UntrustedIdentityException e) {
1021             e.printStackTrace();
1022         }
1023     }
1024
1025     private void requestSyncBlocked() throws IOException {
1026         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED).build();
1027         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1028         try {
1029             sendSyncMessage(message);
1030         } catch (UntrustedIdentityException e) {
1031             e.printStackTrace();
1032         }
1033     }
1034
1035     private void requestSyncConfiguration() throws IOException {
1036         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION).build();
1037         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
1038         try {
1039             sendSyncMessage(message);
1040         } catch (UntrustedIdentityException e) {
1041             e.printStackTrace();
1042         }
1043     }
1044
1045     private byte[] getSenderCertificate() throws IOException {
1046         byte[] certificate = accountManager.getSenderCertificate();
1047         // TODO cache for a day
1048         return certificate;
1049     }
1050
1051     private byte[] getSelfUnidentifiedAccessKey() {
1052         return UnidentifiedAccess.deriveAccessKeyFrom(account.getProfileKey());
1053     }
1054
1055     private static SignalProfile decryptProfile(SignalServiceProfile encryptedProfile, ProfileKey profileKey) throws IOException {
1056         ProfileCipher profileCipher = new ProfileCipher(profileKey);
1057         try {
1058             return new SignalProfile(
1059                     encryptedProfile.getIdentityKey(),
1060                     encryptedProfile.getName() == null ? null : new String(profileCipher.decryptName(Base64.decode(encryptedProfile.getName()))),
1061                     encryptedProfile.getAvatar(),
1062                     encryptedProfile.getUnidentifiedAccess() == null || !profileCipher.verifyUnidentifiedAccess(Base64.decode(encryptedProfile.getUnidentifiedAccess())) ? null : encryptedProfile.getUnidentifiedAccess(),
1063                     encryptedProfile.isUnrestrictedUnidentifiedAccess()
1064             );
1065         } catch (InvalidCiphertextException e) {
1066             return null;
1067         }
1068     }
1069
1070     private byte[] getTargetUnidentifiedAccessKey(SignalServiceAddress recipient) throws IOException {
1071         ContactInfo contact = account.getContactStore().getContact(recipient.getNumber().get());
1072         if (contact == null || contact.profileKey == null) {
1073             return null;
1074         }
1075         ProfileKey theirProfileKey;
1076         try {
1077             theirProfileKey = new ProfileKey(Base64.decode(contact.profileKey));
1078         } catch (InvalidInputException e) {
1079             throw new AssertionError(e);
1080         }
1081         SignalProfile targetProfile = decryptProfile(getRecipientProfile(recipient, Optional.absent()), theirProfileKey);
1082
1083         if (targetProfile == null || targetProfile.getUnidentifiedAccess() == null) {
1084             return null;
1085         }
1086
1087         if (targetProfile.isUnrestrictedUnidentifiedAccess()) {
1088             return KeyUtils.createUnrestrictedUnidentifiedAccess();
1089         }
1090
1091         return UnidentifiedAccess.deriveAccessKeyFrom(theirProfileKey);
1092     }
1093
1094     private Optional<UnidentifiedAccessPair> getAccessForSync() throws IOException {
1095         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
1096         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
1097
1098         if (selfUnidentifiedAccessKey == null || selfUnidentifiedAccessCertificate == null) {
1099             return Optional.absent();
1100         }
1101
1102         try {
1103             return Optional.of(new UnidentifiedAccessPair(
1104                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate),
1105                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate)
1106             ));
1107         } catch (InvalidCertificateException e) {
1108             return Optional.absent();
1109         }
1110     }
1111
1112     private List<Optional<UnidentifiedAccessPair>> getAccessFor(Collection<SignalServiceAddress> recipients) throws IOException {
1113         List<Optional<UnidentifiedAccessPair>> result = new ArrayList<>(recipients.size());
1114         for (SignalServiceAddress recipient : recipients) {
1115             result.add(getAccessFor(recipient));
1116         }
1117         return result;
1118     }
1119
1120     private Optional<UnidentifiedAccessPair> getAccessFor(SignalServiceAddress recipient) throws IOException {
1121         byte[] recipientUnidentifiedAccessKey = getTargetUnidentifiedAccessKey(recipient);
1122         byte[] selfUnidentifiedAccessKey = getSelfUnidentifiedAccessKey();
1123         byte[] selfUnidentifiedAccessCertificate = getSenderCertificate();
1124
1125         if (recipientUnidentifiedAccessKey == null || selfUnidentifiedAccessKey == null || selfUnidentifiedAccessCertificate == null) {
1126             return Optional.absent();
1127         }
1128
1129         try {
1130             return Optional.of(new UnidentifiedAccessPair(
1131                     new UnidentifiedAccess(recipientUnidentifiedAccessKey, selfUnidentifiedAccessCertificate),
1132                     new UnidentifiedAccess(selfUnidentifiedAccessKey, selfUnidentifiedAccessCertificate)
1133             ));
1134         } catch (InvalidCertificateException e) {
1135             return Optional.absent();
1136         }
1137     }
1138
1139     private void sendSyncMessage(SignalServiceSyncMessage message)
1140             throws IOException, UntrustedIdentityException {
1141         SignalServiceMessageSender messageSender = getMessageSender();
1142         try {
1143             messageSender.sendMessage(message, getAccessForSync());
1144         } catch (UntrustedIdentityException e) {
1145             account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1146             throw e;
1147         }
1148     }
1149
1150     /**
1151      * This method throws an EncapsulatedExceptions exception instead of returning a list of SendMessageResult.
1152      */
1153     private void sendMessageLegacy(SignalServiceDataMessage.Builder messageBuilder, Collection<String> recipients)
1154             throws EncapsulatedExceptions, IOException {
1155         List<SendMessageResult> results = sendMessage(messageBuilder, recipients);
1156
1157         List<UntrustedIdentityException> untrustedIdentities = new LinkedList<>();
1158         List<UnregisteredUserException> unregisteredUsers = new LinkedList<>();
1159         List<NetworkFailureException> networkExceptions = new LinkedList<>();
1160
1161         for (SendMessageResult result : results) {
1162             if (result.isUnregisteredFailure()) {
1163                 unregisteredUsers.add(new UnregisteredUserException(result.getAddress().getNumber().get(), null));
1164             } else if (result.isNetworkFailure()) {
1165                 networkExceptions.add(new NetworkFailureException(result.getAddress().getNumber().get(), null));
1166             } else if (result.getIdentityFailure() != null) {
1167                 untrustedIdentities.add(new UntrustedIdentityException("Untrusted", result.getAddress().getNumber().get(), result.getIdentityFailure().getIdentityKey()));
1168             }
1169         }
1170         if (!untrustedIdentities.isEmpty() || !unregisteredUsers.isEmpty() || !networkExceptions.isEmpty()) {
1171             throw new EncapsulatedExceptions(untrustedIdentities, unregisteredUsers, networkExceptions);
1172         }
1173     }
1174
1175     private List<SendMessageResult> sendMessage(SignalServiceDataMessage.Builder messageBuilder, Collection<String> recipients)
1176             throws IOException {
1177         Set<SignalServiceAddress> recipientsTS = Utils.getSignalServiceAddresses(recipients, username);
1178         if (recipientsTS == null) {
1179             account.save();
1180             return Collections.emptyList();
1181         }
1182
1183         if (messagePipe == null) {
1184             messagePipe = getMessageReceiver().createMessagePipe();
1185         }
1186         if (unidentifiedMessagePipe == null) {
1187             unidentifiedMessagePipe = getMessageReceiver().createUnidentifiedMessagePipe();
1188         }
1189         SignalServiceDataMessage message = null;
1190         try {
1191             SignalServiceMessageSender messageSender = getMessageSender();
1192
1193             message = messageBuilder.build();
1194             if (message.getGroupInfo().isPresent()) {
1195                 try {
1196                     final boolean isRecipientUpdate = false;
1197                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipientsTS), getAccessFor(recipientsTS), isRecipientUpdate, message);
1198                     for (SendMessageResult r : result) {
1199                         if (r.getIdentityFailure() != null) {
1200                             account.getSignalProtocolStore().saveIdentity(r.getAddress().getNumber().get(), r.getIdentityFailure().getIdentityKey(), TrustLevel.UNTRUSTED);
1201                         }
1202                     }
1203                     return result;
1204                 } catch (UntrustedIdentityException e) {
1205                     account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1206                     return Collections.emptyList();
1207                 }
1208             } else if (recipientsTS.size() == 1 && recipientsTS.contains(getSelfAddress())) {
1209                 SignalServiceAddress recipient = getSelfAddress();
1210                 final Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
1211                 SentTranscriptMessage transcript = new SentTranscriptMessage(Optional.of(recipient),
1212                         message.getTimestamp(),
1213                         message,
1214                         message.getExpiresInSeconds(),
1215                         Collections.singletonMap(recipient, unidentifiedAccess.isPresent()),
1216                         false);
1217                 SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
1218
1219                 List<SendMessageResult> results = new ArrayList<>(recipientsTS.size());
1220                 try {
1221                     messageSender.sendMessage(syncMessage, unidentifiedAccess);
1222                 } catch (UntrustedIdentityException e) {
1223                     account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1224                     results.add(SendMessageResult.identityFailure(recipient, e.getIdentityKey()));
1225                 }
1226                 return results;
1227             } else {
1228                 // Send to all individually, so sync messages are sent correctly
1229                 List<SendMessageResult> results = new ArrayList<>(recipientsTS.size());
1230                 for (SignalServiceAddress address : recipientsTS) {
1231                     ThreadInfo thread = account.getThreadStore().getThread(address.getNumber().get());
1232                     if (thread != null) {
1233                         messageBuilder.withExpiration(thread.messageExpirationTime);
1234                     } else {
1235                         messageBuilder.withExpiration(0);
1236                     }
1237                     message = messageBuilder.build();
1238                     try {
1239                         SendMessageResult result = messageSender.sendMessage(address, getAccessFor(address), message);
1240                         results.add(result);
1241                     } catch (UntrustedIdentityException e) {
1242                         account.getSignalProtocolStore().saveIdentity(e.getIdentifier(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
1243                         results.add(SendMessageResult.identityFailure(address, e.getIdentityKey()));
1244                     }
1245                 }
1246                 return results;
1247             }
1248         } finally {
1249             if (message != null && message.isEndSession()) {
1250                 for (SignalServiceAddress recipient : recipientsTS) {
1251                     handleEndSession(recipient.getNumber().get());
1252                 }
1253             }
1254             account.save();
1255         }
1256     }
1257
1258     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, ProtocolUntrustedIdentityException, SelfSendException, UnsupportedDataMessageException {
1259         SignalServiceCipher cipher = new SignalServiceCipher(getSelfAddress(), account.getSignalProtocolStore(), Utils.getCertificateValidator());
1260         try {
1261             return cipher.decrypt(envelope);
1262         } catch (ProtocolUntrustedIdentityException e) {
1263             // TODO We don't get the new untrusted identity from ProtocolUntrustedIdentityException anymore ... we need to get it from somewhere else
1264 //            account.getSignalProtocolStore().saveIdentity(e.getSender(), e.getUntrustedIdentity(), TrustLevel.UNTRUSTED);
1265             throw e;
1266         }
1267     }
1268
1269     private void handleEndSession(String source) {
1270         account.getSignalProtocolStore().deleteAllSessions(source);
1271     }
1272
1273     private void handleSignalServiceDataMessage(SignalServiceDataMessage message, boolean isSync, String source, SignalServiceAddress destination, boolean ignoreAttachments) {
1274         String threadId;
1275         if (message.getGroupInfo().isPresent()) {
1276             SignalServiceGroup groupInfo = message.getGroupInfo().get();
1277             threadId = Base64.encodeBytes(groupInfo.getGroupId());
1278             GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
1279             switch (groupInfo.getType()) {
1280                 case UPDATE:
1281                     if (group == null) {
1282                         group = new GroupInfo(groupInfo.getGroupId());
1283                     }
1284
1285                     if (groupInfo.getAvatar().isPresent()) {
1286                         SignalServiceAttachment avatar = groupInfo.getAvatar().get();
1287                         if (avatar.isPointer()) {
1288                             try {
1289                                 retrieveGroupAvatarAttachment(avatar.asPointer(), group.groupId);
1290                             } catch (IOException | InvalidMessageException e) {
1291                                 System.err.println("Failed to retrieve group avatar (" + avatar.asPointer().getId() + "): " + e.getMessage());
1292                             }
1293                         }
1294                     }
1295
1296                     if (groupInfo.getName().isPresent()) {
1297                         group.name = groupInfo.getName().get();
1298                     }
1299
1300                     if (groupInfo.getMembers().isPresent()) {
1301                         group.addMembers(groupInfo.getMembers().get());
1302                     }
1303
1304                     account.getGroupStore().updateGroup(group);
1305                     break;
1306                 case DELIVER:
1307                     if (group == null) {
1308                         try {
1309                             sendGroupInfoRequest(groupInfo.getGroupId(), source);
1310                         } catch (IOException | EncapsulatedExceptions e) {
1311                             e.printStackTrace();
1312                         }
1313                     }
1314                     break;
1315                 case QUIT:
1316                     if (group == null) {
1317                         try {
1318                             sendGroupInfoRequest(groupInfo.getGroupId(), source);
1319                         } catch (IOException | EncapsulatedExceptions e) {
1320                             e.printStackTrace();
1321                         }
1322                     } else {
1323                         group.members.remove(source);
1324                         account.getGroupStore().updateGroup(group);
1325                     }
1326                     break;
1327                 case REQUEST_INFO:
1328                     if (group != null) {
1329                         try {
1330                             sendUpdateGroupMessage(groupInfo.getGroupId(), source);
1331                         } catch (IOException | EncapsulatedExceptions e) {
1332                             e.printStackTrace();
1333                         } catch (NotAGroupMemberException e) {
1334                             // We have left this group, so don't send a group update message
1335                         }
1336                     }
1337                     break;
1338             }
1339         } else {
1340             if (isSync) {
1341                 threadId = destination.getNumber().get();
1342             } else {
1343                 threadId = source;
1344             }
1345         }
1346         if (message.isEndSession()) {
1347             handleEndSession(isSync ? destination.getNumber().get() : source);
1348         }
1349         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
1350             ThreadInfo thread = account.getThreadStore().getThread(threadId);
1351             if (thread == null) {
1352                 thread = new ThreadInfo();
1353                 thread.id = threadId;
1354             }
1355             if (thread.messageExpirationTime != message.getExpiresInSeconds()) {
1356                 thread.messageExpirationTime = message.getExpiresInSeconds();
1357                 account.getThreadStore().updateThread(thread);
1358             }
1359         }
1360         if (message.getAttachments().isPresent() && !ignoreAttachments) {
1361             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
1362                 if (attachment.isPointer()) {
1363                     try {
1364                         retrieveAttachment(attachment.asPointer());
1365                     } catch (IOException | InvalidMessageException e) {
1366                         System.err.println("Failed to retrieve attachment (" + attachment.asPointer().getId() + "): " + e.getMessage());
1367                     }
1368                 }
1369             }
1370         }
1371         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
1372             if (source.equals(username)) {
1373                 try {
1374                     this.account.setProfileKey(new ProfileKey(message.getProfileKey().get()));
1375                 } catch (InvalidInputException ignored) {
1376                 }
1377             }
1378             ContactInfo contact = account.getContactStore().getContact(source);
1379             if (contact == null) {
1380                 contact = new ContactInfo();
1381                 contact.number = source;
1382             }
1383             contact.profileKey = Base64.encodeBytes(message.getProfileKey().get());
1384             account.getContactStore().updateContact(contact);
1385         }
1386         if (message.getPreviews().isPresent()) {
1387             final List<SignalServiceDataMessage.Preview> previews = message.getPreviews().get();
1388             for (SignalServiceDataMessage.Preview preview : previews) {
1389                 if (preview.getImage().isPresent() && preview.getImage().get().isPointer()) {
1390                     SignalServiceAttachmentPointer attachment = preview.getImage().get().asPointer();
1391                     try {
1392                         retrieveAttachment(attachment);
1393                     } catch (IOException | InvalidMessageException e) {
1394                         System.err.println("Failed to retrieve attachment (" + attachment.getId() + "): " + e.getMessage());
1395                     }
1396                 }
1397             }
1398         }
1399     }
1400
1401     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
1402         final File cachePath = new File(getMessageCachePath());
1403         if (!cachePath.exists()) {
1404             return;
1405         }
1406         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
1407             if (!dir.isDirectory()) {
1408                 continue;
1409             }
1410
1411             for (final File fileEntry : Objects.requireNonNull(dir.listFiles())) {
1412                 if (!fileEntry.isFile()) {
1413                     continue;
1414                 }
1415                 SignalServiceEnvelope envelope;
1416                 try {
1417                     envelope = Utils.loadEnvelope(fileEntry);
1418                     if (envelope == null) {
1419                         continue;
1420                     }
1421                 } catch (IOException e) {
1422                     e.printStackTrace();
1423                     continue;
1424                 }
1425                 SignalServiceContent content = null;
1426                 if (!envelope.isReceipt()) {
1427                     try {
1428                         content = decryptMessage(envelope);
1429                     } catch (Exception e) {
1430                         continue;
1431                     }
1432                     handleMessage(envelope, content, ignoreAttachments);
1433                 }
1434                 account.save();
1435                 handler.handleMessage(envelope, content, null);
1436                 try {
1437                     Files.delete(fileEntry.toPath());
1438                 } catch (IOException e) {
1439                     System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1440                 }
1441             }
1442             // Try to delete directory if empty
1443             dir.delete();
1444         }
1445     }
1446
1447     public void receiveMessages(long timeout, TimeUnit unit, boolean returnOnTimeout, boolean ignoreAttachments, ReceiveMessageHandler handler) throws IOException {
1448         retryFailedReceivedMessages(handler, ignoreAttachments);
1449         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1450
1451         try {
1452             if (messagePipe == null) {
1453                 messagePipe = messageReceiver.createMessagePipe();
1454             }
1455
1456             while (true) {
1457                 SignalServiceEnvelope envelope;
1458                 SignalServiceContent content = null;
1459                 Exception exception = null;
1460                 final long now = new Date().getTime();
1461                 try {
1462                     envelope = messagePipe.read(timeout, unit, envelope1 -> {
1463                         // store message on disk, before acknowledging receipt to the server
1464                         try {
1465                             File cacheFile = getMessageCacheFile(envelope1.getSourceE164().get(), now, envelope1.getTimestamp());
1466                             Utils.storeEnvelope(envelope1, cacheFile);
1467                         } catch (IOException e) {
1468                             System.err.println("Failed to store encrypted message in disk cache, ignoring: " + e.getMessage());
1469                         }
1470                     });
1471                 } catch (TimeoutException e) {
1472                     if (returnOnTimeout)
1473                         return;
1474                     continue;
1475                 } catch (InvalidVersionException e) {
1476                     System.err.println("Ignoring error: " + e.getMessage());
1477                     continue;
1478                 }
1479                 if (!envelope.isReceipt()) {
1480                     try {
1481                         content = decryptMessage(envelope);
1482                     } catch (Exception e) {
1483                         exception = e;
1484                     }
1485                     handleMessage(envelope, content, ignoreAttachments);
1486                 }
1487                 account.save();
1488                 if (!isMessageBlocked(envelope, content)) {
1489                     handler.handleMessage(envelope, content, exception);
1490                 }
1491                 if (!(exception instanceof ProtocolUntrustedIdentityException)) {
1492                     File cacheFile = null;
1493                     try {
1494                         cacheFile = getMessageCacheFile(envelope.getSourceE164().get(), now, envelope.getTimestamp());
1495                         Files.delete(cacheFile.toPath());
1496                         // Try to delete directory if empty
1497                         new File(getMessageCachePath()).delete();
1498                     } catch (IOException e) {
1499                         System.err.println("Failed to delete cached message file “" + cacheFile + "”: " + e.getMessage());
1500                     }
1501                 }
1502             }
1503         } finally {
1504             if (messagePipe != null) {
1505                 messagePipe.shutdown();
1506                 messagePipe = null;
1507             }
1508         }
1509     }
1510
1511     private boolean isMessageBlocked(SignalServiceEnvelope envelope, SignalServiceContent content) {
1512         SignalServiceAddress source;
1513         if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1514             source = envelope.getSourceAddress();
1515         } else if (content != null) {
1516             source = content.getSender();
1517         } else {
1518             return false;
1519         }
1520         ContactInfo sourceContact = getContact(source.getNumber().get());
1521         if (sourceContact != null && sourceContact.blocked) {
1522             return true;
1523         }
1524
1525         if (content != null && content.getDataMessage().isPresent()) {
1526             SignalServiceDataMessage message = content.getDataMessage().get();
1527             if (message.getGroupInfo().isPresent()) {
1528                 SignalServiceGroup groupInfo = message.getGroupInfo().get();
1529                 GroupInfo group = getGroup(groupInfo.getGroupId());
1530                 if (groupInfo.getType() == SignalServiceGroup.Type.DELIVER && group != null && group.blocked) {
1531                     return true;
1532                 }
1533             }
1534         }
1535         return false;
1536     }
1537
1538     private void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments) {
1539         if (content != null) {
1540             SignalServiceAddress sender;
1541             if (!envelope.isUnidentifiedSender() && envelope.hasSource()) {
1542                 sender = envelope.getSourceAddress();
1543             } else {
1544                 sender = content.getSender();
1545             }
1546             if (content.getDataMessage().isPresent()) {
1547                 SignalServiceDataMessage message = content.getDataMessage().get();
1548                 handleSignalServiceDataMessage(message, false, sender.getNumber().get(), getSelfAddress(), ignoreAttachments);
1549             }
1550             if (content.getSyncMessage().isPresent()) {
1551                 account.setMultiDevice(true);
1552                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1553                 if (syncMessage.getSent().isPresent()) {
1554                     SentTranscriptMessage message = syncMessage.getSent().get();
1555                     handleSignalServiceDataMessage(message.getMessage(), true, sender.getNumber().get(), message.getDestination().orNull(), ignoreAttachments);
1556                 }
1557                 if (syncMessage.getRequest().isPresent()) {
1558                     RequestMessage rm = syncMessage.getRequest().get();
1559                     if (rm.isContactsRequest()) {
1560                         try {
1561                             sendContacts();
1562                         } catch (UntrustedIdentityException | IOException e) {
1563                             e.printStackTrace();
1564                         }
1565                     }
1566                     if (rm.isGroupsRequest()) {
1567                         try {
1568                             sendGroups();
1569                         } catch (UntrustedIdentityException | IOException e) {
1570                             e.printStackTrace();
1571                         }
1572                     }
1573                     if (rm.isBlockedListRequest()) {
1574                         try {
1575                             sendBlockedList();
1576                         } catch (UntrustedIdentityException | IOException e) {
1577                             e.printStackTrace();
1578                         }
1579                     }
1580                     // TODO Handle rm.isConfigurationRequest();
1581                 }
1582                 if (syncMessage.getGroups().isPresent()) {
1583                     File tmpFile = null;
1584                     try {
1585                         tmpFile = IOUtils.createTempFile();
1586                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups().get().asPointer(), tmpFile)) {
1587                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1588                             DeviceGroup g;
1589                             while ((g = s.read()) != null) {
1590                                 GroupInfo syncGroup = account.getGroupStore().getGroup(g.getId());
1591                                 if (syncGroup == null) {
1592                                     syncGroup = new GroupInfo(g.getId());
1593                                 }
1594                                 if (g.getName().isPresent()) {
1595                                     syncGroup.name = g.getName().get();
1596                                 }
1597                                 syncGroup.addMembers(g.getMembers());
1598                                 if (!g.isActive()) {
1599                                     syncGroup.members.remove(username);
1600                                 }
1601                                 syncGroup.blocked = g.isBlocked();
1602                                 if (g.getColor().isPresent()) {
1603                                     syncGroup.color = g.getColor().get();
1604                                 }
1605
1606                                 if (g.getAvatar().isPresent()) {
1607                                     retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId);
1608                                 }
1609                                 syncGroup.inboxPosition = g.getInboxPosition().orNull();
1610                                 syncGroup.archived = g.isArchived();
1611                                 account.getGroupStore().updateGroup(syncGroup);
1612                             }
1613                         }
1614                     } catch (Exception e) {
1615                         e.printStackTrace();
1616                     } finally {
1617                         if (tmpFile != null) {
1618                             try {
1619                                 Files.delete(tmpFile.toPath());
1620                             } catch (IOException e) {
1621                                 System.err.println("Failed to delete received groups temp file “" + tmpFile + "”: " + e.getMessage());
1622                             }
1623                         }
1624                     }
1625                 }
1626                 if (syncMessage.getBlockedList().isPresent()) {
1627                     final BlockedListMessage blockedListMessage = syncMessage.getBlockedList().get();
1628                     for (SignalServiceAddress address : blockedListMessage.getAddresses()) {
1629                         if (address.getNumber().isPresent()) {
1630                             try {
1631                                 setContactBlocked(address.getNumber().get(), true);
1632                             } catch (InvalidNumberException e) {
1633                                 e.printStackTrace();
1634                             }
1635                         }
1636                     }
1637                     for (byte[] groupId : blockedListMessage.getGroupIds()) {
1638                         try {
1639                             setGroupBlocked(groupId, true);
1640                         } catch (GroupNotFoundException e) {
1641                             System.err.println("BlockedListMessage contained groupID that was not found in GroupStore: " + Base64.encodeBytes(groupId));
1642                         }
1643                     }
1644                 }
1645                 if (syncMessage.getContacts().isPresent()) {
1646                     File tmpFile = null;
1647                     try {
1648                         tmpFile = IOUtils.createTempFile();
1649                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1650                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream().asPointer(), tmpFile)) {
1651                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1652                             if (contactsMessage.isComplete()) {
1653                                 account.getContactStore().clear();
1654                             }
1655                             DeviceContact c;
1656                             while ((c = s.read()) != null) {
1657                                 if (c.getAddress().matches(account.getSelfAddress()) && c.getProfileKey().isPresent()) {
1658                                     account.setProfileKey(c.getProfileKey().get());
1659                                 }
1660                                 ContactInfo contact = account.getContactStore().getContact(c.getAddress().getNumber().get());
1661                                 if (contact == null) {
1662                                     contact = new ContactInfo();
1663                                     contact.number = c.getAddress().getNumber().get();
1664                                 }
1665                                 if (c.getName().isPresent()) {
1666                                     contact.name = c.getName().get();
1667                                 }
1668                                 if (c.getColor().isPresent()) {
1669                                     contact.color = c.getColor().get();
1670                                 }
1671                                 if (c.getProfileKey().isPresent()) {
1672                                     contact.profileKey = Base64.encodeBytes(c.getProfileKey().get().serialize());
1673                                 }
1674                                 if (c.getVerified().isPresent()) {
1675                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
1676                                     account.getSignalProtocolStore().saveIdentity(verifiedMessage.getDestination().getNumber().get(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1677                                 }
1678                                 if (c.getExpirationTimer().isPresent()) {
1679                                     ThreadInfo thread = account.getThreadStore().getThread(c.getAddress().getNumber().get());
1680                                     if (thread == null) {
1681                                         thread = new ThreadInfo();
1682                                         thread.id = c.getAddress().getNumber().get();
1683                                     }
1684                                     thread.messageExpirationTime = c.getExpirationTimer().get();
1685                                     account.getThreadStore().updateThread(thread);
1686                                 }
1687                                 contact.blocked = c.isBlocked();
1688                                 contact.inboxPosition = c.getInboxPosition().orNull();
1689                                 contact.archived = c.isArchived();
1690                                 account.getContactStore().updateContact(contact);
1691
1692                                 if (c.getAvatar().isPresent()) {
1693                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
1694                                 }
1695                             }
1696                         }
1697                     } catch (Exception e) {
1698                         e.printStackTrace();
1699                     } finally {
1700                         if (tmpFile != null) {
1701                             try {
1702                                 Files.delete(tmpFile.toPath());
1703                             } catch (IOException e) {
1704                                 System.err.println("Failed to delete received contacts temp file “" + tmpFile + "”: " + e.getMessage());
1705                             }
1706                         }
1707                     }
1708                 }
1709                 if (syncMessage.getVerified().isPresent()) {
1710                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
1711                     account.getSignalProtocolStore().saveIdentity(verifiedMessage.getDestination().getNumber().get(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1712                 }
1713                 if (syncMessage.getConfiguration().isPresent()) {
1714                     // TODO
1715                 }
1716             }
1717         }
1718     }
1719
1720     private File getContactAvatarFile(String number) {
1721         return new File(avatarsPath, "contact-" + number);
1722     }
1723
1724     private File retrieveContactAvatarAttachment(SignalServiceAttachment attachment, String number) throws IOException, InvalidMessageException {
1725         IOUtils.createPrivateDirectories(avatarsPath);
1726         if (attachment.isPointer()) {
1727             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1728             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
1729         } else {
1730             SignalServiceAttachmentStream stream = attachment.asStream();
1731             return Utils.retrieveAttachment(stream, getContactAvatarFile(number));
1732         }
1733     }
1734
1735     private File getGroupAvatarFile(byte[] groupId) {
1736         return new File(avatarsPath, "group-" + Base64.encodeBytes(groupId).replace("/", "_"));
1737     }
1738
1739     private File retrieveGroupAvatarAttachment(SignalServiceAttachment attachment, byte[] groupId) throws IOException, InvalidMessageException {
1740         IOUtils.createPrivateDirectories(avatarsPath);
1741         if (attachment.isPointer()) {
1742             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1743             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
1744         } else {
1745             SignalServiceAttachmentStream stream = attachment.asStream();
1746             return Utils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
1747         }
1748     }
1749
1750     public File getAttachmentFile(long attachmentId) {
1751         return new File(attachmentsPath, attachmentId + "");
1752     }
1753
1754     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException {
1755         IOUtils.createPrivateDirectories(attachmentsPath);
1756         return retrieveAttachment(pointer, getAttachmentFile(pointer.getId()), true);
1757     }
1758
1759     private File retrieveAttachment(SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview) throws IOException, InvalidMessageException {
1760         if (storePreview && pointer.getPreview().isPresent()) {
1761             File previewFile = new File(outputFile + ".preview");
1762             try (OutputStream output = new FileOutputStream(previewFile)) {
1763                 byte[] preview = pointer.getPreview().get();
1764                 output.write(preview, 0, preview.length);
1765             } catch (FileNotFoundException e) {
1766                 e.printStackTrace();
1767                 return null;
1768             }
1769         }
1770
1771         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1772
1773         File tmpFile = IOUtils.createTempFile();
1774         try (InputStream input = messageReceiver.retrieveAttachment(pointer, tmpFile, BaseConfig.MAX_ATTACHMENT_SIZE)) {
1775             try (OutputStream output = new FileOutputStream(outputFile)) {
1776                 byte[] buffer = new byte[4096];
1777                 int read;
1778
1779                 while ((read = input.read(buffer)) != -1) {
1780                     output.write(buffer, 0, read);
1781                 }
1782             } catch (FileNotFoundException e) {
1783                 e.printStackTrace();
1784                 return null;
1785             }
1786         } finally {
1787             try {
1788                 Files.delete(tmpFile.toPath());
1789             } catch (IOException e) {
1790                 System.err.println("Failed to delete received attachment temp file “" + tmpFile + "”: " + e.getMessage());
1791             }
1792         }
1793         return outputFile;
1794     }
1795
1796     private InputStream retrieveAttachmentAsStream(SignalServiceAttachmentPointer pointer, File tmpFile) throws IOException, InvalidMessageException {
1797         final SignalServiceMessageReceiver messageReceiver = getMessageReceiver();
1798         return messageReceiver.retrieveAttachment(pointer, tmpFile, BaseConfig.MAX_ATTACHMENT_SIZE);
1799     }
1800
1801     @Override
1802     public boolean isRemote() {
1803         return false;
1804     }
1805
1806     private void sendGroups() throws IOException, UntrustedIdentityException {
1807         File groupsFile = IOUtils.createTempFile();
1808
1809         try {
1810             try (OutputStream fos = new FileOutputStream(groupsFile)) {
1811                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
1812                 for (GroupInfo record : account.getGroupStore().getGroups()) {
1813                     ThreadInfo info = account.getThreadStore().getThread(Base64.encodeBytes(record.groupId));
1814                     out.write(new DeviceGroup(record.groupId, Optional.fromNullable(record.name),
1815                             new ArrayList<>(record.getMembers()), createGroupAvatarAttachment(record.groupId),
1816                             record.members.contains(username), Optional.fromNullable(info != null ? info.messageExpirationTime : null),
1817                             Optional.fromNullable(record.color), record.blocked, Optional.fromNullable(record.inboxPosition), record.archived));
1818                 }
1819             }
1820
1821             if (groupsFile.exists() && groupsFile.length() > 0) {
1822                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
1823                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1824                             .withStream(groupsFileStream)
1825                             .withContentType("application/octet-stream")
1826                             .withLength(groupsFile.length())
1827                             .build();
1828
1829                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
1830                 }
1831             }
1832         } finally {
1833             try {
1834                 Files.delete(groupsFile.toPath());
1835             } catch (IOException e) {
1836                 System.err.println("Failed to delete groups temp file “" + groupsFile + "”: " + e.getMessage());
1837             }
1838         }
1839     }
1840
1841     public void sendContacts() throws IOException, UntrustedIdentityException {
1842         File contactsFile = IOUtils.createTempFile();
1843
1844         try {
1845             try (OutputStream fos = new FileOutputStream(contactsFile)) {
1846                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
1847                 for (ContactInfo record : account.getContactStore().getContacts()) {
1848                     VerifiedMessage verifiedMessage = null;
1849                     ThreadInfo info = account.getThreadStore().getThread(record.number);
1850                     if (getIdentities().containsKey(record.number)) {
1851                         JsonIdentityKeyStore.Identity currentIdentity = null;
1852                         for (JsonIdentityKeyStore.Identity id : getIdentities().get(record.number)) {
1853                             if (currentIdentity == null || id.getDateAdded().after(currentIdentity.getDateAdded())) {
1854                                 currentIdentity = id;
1855                             }
1856                         }
1857                         if (currentIdentity != null) {
1858                             verifiedMessage = new VerifiedMessage(record.getAddress(), currentIdentity.getIdentityKey(), currentIdentity.getTrustLevel().toVerifiedState(), currentIdentity.getDateAdded().getTime());
1859                         }
1860                     }
1861
1862                     ProfileKey profileKey = null;
1863                     try {
1864                         profileKey = record.profileKey == null ? null : new ProfileKey(Base64.decode(record.profileKey));
1865                     } catch (InvalidInputException ignored) {
1866                     }
1867                     out.write(new DeviceContact(record.getAddress(), Optional.fromNullable(record.name),
1868                             createContactAvatarAttachment(record.number), Optional.fromNullable(record.color),
1869                             Optional.fromNullable(verifiedMessage), Optional.fromNullable(profileKey), record.blocked,
1870                             Optional.fromNullable(info != null ? info.messageExpirationTime : null),
1871                             Optional.fromNullable(record.inboxPosition), record.archived));
1872                 }
1873
1874                 if (account.getProfileKey() != null) {
1875                     // Send our own profile key as well
1876                     out.write(new DeviceContact(account.getSelfAddress(),
1877                             Optional.absent(), Optional.absent(),
1878                             Optional.absent(), Optional.absent(),
1879                             Optional.of(account.getProfileKey()),
1880                             false, Optional.absent(), Optional.absent(), false));
1881                 }
1882             }
1883
1884             if (contactsFile.exists() && contactsFile.length() > 0) {
1885                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
1886                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1887                             .withStream(contactsFileStream)
1888                             .withContentType("application/octet-stream")
1889                             .withLength(contactsFile.length())
1890                             .build();
1891
1892                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
1893                 }
1894             }
1895         } finally {
1896             try {
1897                 Files.delete(contactsFile.toPath());
1898             } catch (IOException e) {
1899                 System.err.println("Failed to delete contacts temp file “" + contactsFile + "”: " + e.getMessage());
1900             }
1901         }
1902     }
1903
1904     private void sendBlockedList() throws IOException, UntrustedIdentityException {
1905         List<SignalServiceAddress> addresses = new ArrayList<>();
1906         for (ContactInfo record : account.getContactStore().getContacts()) {
1907             if (record.blocked) {
1908                 addresses.add(record.getAddress());
1909             }
1910         }
1911         List<byte[]> groupIds = new ArrayList<>();
1912         for (GroupInfo record : account.getGroupStore().getGroups()) {
1913             if (record.blocked) {
1914                 groupIds.add(record.groupId);
1915             }
1916         }
1917         sendSyncMessage(SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds)));
1918     }
1919
1920     private void sendVerifiedMessage(SignalServiceAddress destination, IdentityKey identityKey, TrustLevel trustLevel) throws IOException, UntrustedIdentityException {
1921         VerifiedMessage verifiedMessage = new VerifiedMessage(destination, identityKey, trustLevel.toVerifiedState(), System.currentTimeMillis());
1922         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
1923     }
1924
1925     public List<ContactInfo> getContacts() {
1926         return account.getContactStore().getContacts();
1927     }
1928
1929     public ContactInfo getContact(String number) {
1930         return account.getContactStore().getContact(number);
1931     }
1932
1933     public GroupInfo getGroup(byte[] groupId) {
1934         return account.getGroupStore().getGroup(groupId);
1935     }
1936
1937     public Map<String, List<JsonIdentityKeyStore.Identity>> getIdentities() {
1938         return account.getSignalProtocolStore().getIdentities();
1939     }
1940
1941     public Pair<String, List<JsonIdentityKeyStore.Identity>> getIdentities(String number) throws InvalidNumberException {
1942         String canonicalizedNumber = Utils.canonicalizeNumber(number, username);
1943         return new Pair<>(canonicalizedNumber, account.getSignalProtocolStore().getIdentities(canonicalizedNumber));
1944     }
1945
1946     /**
1947      * Trust this the identity with this fingerprint
1948      *
1949      * @param name        username of the identity
1950      * @param fingerprint Fingerprint
1951      */
1952     public boolean trustIdentityVerified(String name, byte[] fingerprint) {
1953         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(name);
1954         if (ids == null) {
1955             return false;
1956         }
1957         for (JsonIdentityKeyStore.Identity id : ids) {
1958             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
1959                 continue;
1960             }
1961
1962             account.getSignalProtocolStore().saveIdentity(name, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1963             try {
1964                 sendVerifiedMessage(new SignalServiceAddress(null, name), id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1965             } catch (IOException | UntrustedIdentityException e) {
1966                 e.printStackTrace();
1967             }
1968             account.save();
1969             return true;
1970         }
1971         return false;
1972     }
1973
1974     /**
1975      * Trust this the identity with this safety number
1976      *
1977      * @param name         username of the identity
1978      * @param safetyNumber Safety number
1979      */
1980     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) {
1981         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(name);
1982         if (ids == null) {
1983             return false;
1984         }
1985         for (JsonIdentityKeyStore.Identity id : ids) {
1986             if (!safetyNumber.equals(computeSafetyNumber(name, id.getIdentityKey()))) {
1987                 continue;
1988             }
1989
1990             account.getSignalProtocolStore().saveIdentity(name, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1991             try {
1992                 sendVerifiedMessage(new SignalServiceAddress(null, name), 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 all keys of this identity without verification
2004      *
2005      * @param name username of the identity
2006      */
2007     public boolean trustIdentityAllKeys(String name) {
2008         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(name);
2009         if (ids == null) {
2010             return false;
2011         }
2012         for (JsonIdentityKeyStore.Identity id : ids) {
2013             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
2014                 account.getSignalProtocolStore().saveIdentity(name, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2015                 try {
2016                     sendVerifiedMessage(new SignalServiceAddress(null, name), id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
2017                 } catch (IOException | UntrustedIdentityException e) {
2018                     e.printStackTrace();
2019                 }
2020             }
2021         }
2022         account.save();
2023         return true;
2024     }
2025
2026     public String computeSafetyNumber(String theirUsername, IdentityKey theirIdentityKey) {
2027         return Utils.computeSafetyNumber(username, getIdentity(), theirUsername, theirIdentityKey);
2028     }
2029
2030     public interface ReceiveMessageHandler {
2031
2032         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
2033     }
2034 }