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

   1 /*
   2   Copyright (C) 2015-2018 AsamK
   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 org.asamk.Signal;
  20 import org.asamk.signal.*;
  21 import org.asamk.signal.storage.SignalAccount;
  22 import org.asamk.signal.storage.contacts.ContactInfo;
  23 import org.asamk.signal.storage.groups.GroupInfo;
  24 import org.asamk.signal.storage.groups.JsonGroupStore;
  25 import org.asamk.signal.storage.protocol.JsonIdentityKeyStore;
  26 import org.asamk.signal.storage.threads.ThreadInfo;
  27 import org.asamk.signal.util.IOUtils;
  28 import org.asamk.signal.util.Util;
  29 import org.signal.libsignal.metadata.*;
  30 import org.whispersystems.libsignal.*;
  31 import org.whispersystems.libsignal.ecc.Curve;
  32 import org.whispersystems.libsignal.ecc.ECKeyPair;
  33 import org.whispersystems.libsignal.ecc.ECPublicKey;
  34 import org.whispersystems.libsignal.state.PreKeyRecord;
  35 import org.whispersystems.libsignal.state.SignedPreKeyRecord;
  36 import org.whispersystems.libsignal.util.KeyHelper;
  37 import org.whispersystems.libsignal.util.Medium;
  38 import org.whispersystems.libsignal.util.guava.Optional;
  39 import org.whispersystems.signalservice.api.SignalServiceAccountManager;
  40 import org.whispersystems.signalservice.api.SignalServiceMessagePipe;
  41 import org.whispersystems.signalservice.api.SignalServiceMessageReceiver;
  42 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  43 import org.whispersystems.signalservice.api.crypto.SignalServiceCipher;
  44 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccess;
  45 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
  46 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  47 import org.whispersystems.signalservice.api.messages.*;
  48 import org.whispersystems.signalservice.api.messages.multidevice.*;
  49 import org.whispersystems.signalservice.api.push.ContactTokenDetails;
  50 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  51 import org.whispersystems.signalservice.api.push.exceptions.AuthorizationFailedException;
  52 import org.whispersystems.signalservice.api.push.exceptions.EncapsulatedExceptions;
  53 import org.whispersystems.signalservice.api.push.exceptions.NetworkFailureException;
  54 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
  55 import org.whispersystems.signalservice.api.util.InvalidNumberException;
  56 import org.whispersystems.signalservice.api.util.SleepTimer;
  57 import org.whispersystems.signalservice.api.util.StreamDetails;
  58 import org.whispersystems.signalservice.api.util.UptimeSleepTimer;
  59 import org.whispersystems.signalservice.internal.push.SignalServiceProtos;
  60 import org.whispersystems.signalservice.internal.push.UnsupportedDataMessageException;
  61 import org.whispersystems.signalservice.internal.util.Base64;
  62
  63 import java.io.*;
  64 import java.net.URI;
  65 import java.nio.file.Files;
  66 import java.nio.file.Paths;
  67 import java.nio.file.StandardCopyOption;
  68 import java.util.*;
  69 import java.util.concurrent.TimeUnit;
  70 import java.util.concurrent.TimeoutException;
  71
  72 public class Manager implements Signal {
  73
  74     private final String settingsPath;
  75     private final String dataPath;
  76     private final String attachmentsPath;
  77     private final String avatarsPath;
  78     private final SleepTimer timer = new UptimeSleepTimer();
  79
  80     private SignalAccount account;
  81     private String username;
  82     private SignalServiceAccountManager accountManager;
  83     private SignalServiceMessagePipe messagePipe = null;
  84     private SignalServiceMessagePipe unidentifiedMessagePipe = null;
  85
  86     public Manager(String username, String settingsPath) {
  87         this.username = username;
  88         this.settingsPath = settingsPath;
  89         this.dataPath = this.settingsPath + "/data";
  90         this.attachmentsPath = this.settingsPath + "/attachments";
  91         this.avatarsPath = this.settingsPath + "/avatars";
  92
  93     }
  94
  95     public String getUsername() {
  96         return username;
  97     }
  98
  99     private IdentityKey getIdentity() {
 100         return account.getSignalProtocolStore().getIdentityKeyPair().getPublicKey();
 101     }
 102
 103     public int getDeviceId() {
 104         return account.getDeviceId();
 105     }
 106
 107     private String getMessageCachePath() {
 108         return this.dataPath + "/" + username + ".d/msg-cache";
 109     }
 110
 111     private String getMessageCachePath(String sender) {
 112         return getMessageCachePath() + "/" + sender.replace("/", "_");
 113     }
 114
 115     private File getMessageCacheFile(String sender, long now, long timestamp) throws IOException {
 116         String cachePath = getMessageCachePath(sender);
 117         IOUtils.createPrivateDirectories(cachePath);
 118         return new File(cachePath + "/" + now + "_" + timestamp);
 119     }
 120
 121     public boolean userHasKeys() {
 122         return account != null && account.getSignalProtocolStore() != null;
 123     }
 124
 125     public void init() throws IOException {
 126         if (!SignalAccount.userExists(dataPath, username)) {
 127             return;
 128         }
 129         account = SignalAccount.load(dataPath, username);
 130
 131         migrateLegacyConfigs();
 132
 133         accountManager = new SignalServiceAccountManager(BaseConfig.serviceConfiguration, username, account.getPassword(), account.getDeviceId(), BaseConfig.USER_AGENT, timer);
 134         try {
 135             if (account.isRegistered() && accountManager.getPreKeysCount() < BaseConfig.PREKEY_MINIMUM_COUNT) {
 136                 refreshPreKeys();
 137                 account.save();
 138             }
 139         } catch (AuthorizationFailedException e) {
 140             System.err.println("Authorization failed, was the number registered elsewhere?");
 141             throw e;
 142         }
 143     }
 144
 145     private void migrateLegacyConfigs() {
 146         // Copy group avatars that were previously stored in the attachments folder
 147         // to the new avatar folder
 148         if (JsonGroupStore.groupsWithLegacyAvatarId.size() > 0) {
 149             for (GroupInfo g : JsonGroupStore.groupsWithLegacyAvatarId) {
 150                 File avatarFile = getGroupAvatarFile(g.groupId);
 151                 File attachmentFile = getAttachmentFile(g.getAvatarId());
 152                 if (!avatarFile.exists() && attachmentFile.exists()) {
 153                     try {
 154                         IOUtils.createPrivateDirectories(avatarsPath);
 155                         Files.copy(attachmentFile.toPath(), avatarFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 156                     } catch (Exception e) {
 157                         // Ignore
 158                     }
 159                 }
 160             }
 161             JsonGroupStore.groupsWithLegacyAvatarId.clear();
 162             account.save();
 163         }
 164         if (account.getProfileKey() == null) {
 165             // Old config file, creating new profile key
 166             account.setProfileKey(KeyUtils.createProfileKey());
 167             account.save();
 168         }
 169     }
 170
 171     private void createNewIdentity() throws IOException {
 172         IdentityKeyPair identityKey = KeyHelper.generateIdentityKeyPair();
 173         int registrationId = KeyHelper.generateRegistrationId(false);
 174         if (username == null) {
 175             account = SignalAccount.createTemporaryAccount(identityKey, registrationId);
 176         } else {
 177             byte[] profileKey = KeyUtils.createProfileKey();
 178             account = SignalAccount.create(dataPath, username, identityKey, registrationId, profileKey);
 179             account.save();
 180         }
 181     }
 182
 183     public boolean isRegistered() {
 184         return account != null && account.isRegistered();
 185     }
 186
 187     public void register(boolean voiceVerification) throws IOException {
 188         if (account == null) {
 189             createNewIdentity();
 190         }
 191         account.setPassword(KeyUtils.createPassword());
 192         accountManager = new SignalServiceAccountManager(BaseConfig.serviceConfiguration, account.getUsername(), account.getPassword(), BaseConfig.USER_AGENT, timer);
 193
 194         if (voiceVerification) {
 195             accountManager.requestVoiceVerificationCode(Locale.getDefault(), Optional.<String>absent(), Optional.<String>absent());
 196         } else {
 197             accountManager.requestSmsVerificationCode(false, Optional.<String>absent(), Optional.<String>absent());
 198         }
 199
 200         account.setRegistered(false);
 201         account.save();
 202     }
 203
 204     public void updateAccountAttributes() throws IOException {
 205         accountManager.setAccountAttributes(account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, account.getRegistrationLockPin(), getSelfUnidentifiedAccessKey(), false);
 206     }
 207
 208     public void setProfileName(String name) throws IOException {
 209         accountManager.setProfileName(account.getProfileKey(), name);
 210     }
 211
 212     public void setProfileAvatar(File avatar) throws IOException {
 213         final StreamDetails streamDetails = Utils.createStreamDetailsFromFile(avatar);
 214         accountManager.setProfileAvatar(account.getProfileKey(), streamDetails);
 215         streamDetails.getStream().close();
 216     }
 217
 218     public void removeProfileAvatar() throws IOException {
 219         accountManager.setProfileAvatar(account.getProfileKey(), null);
 220     }
 221
 222     public void unregister() throws IOException {
 223         // When setting an empty GCM id, the Signal-Server also sets the fetchesMessages property to false.
 224         // If this is the master device, other users can't send messages to this number anymore.
 225         // If this is a linked device, other users can still send messages, but this device doesn't receive them anymore.
 226         accountManager.setGcmId(Optional.<String>absent());
 227
 228         account.setRegistered(false);
 229         account.save();
 230     }
 231
 232     public String getDeviceLinkUri() throws TimeoutException, IOException {
 233         if (account == null) {
 234             createNewIdentity();
 235         }
 236         account.setPassword(KeyUtils.createPassword());
 237         accountManager = new SignalServiceAccountManager(BaseConfig.serviceConfiguration, username, account.getPassword(), BaseConfig.USER_AGENT, timer);
 238         String uuid = accountManager.getNewDeviceUuid();
 239
 240         return Utils.createDeviceLinkUri(new Utils.DeviceLinkInfo(uuid, getIdentity().getPublicKey()));
 241     }
 242
 243     public void finishDeviceLink(String deviceName) throws IOException, InvalidKeyException, TimeoutException, UserAlreadyExists {
 244         account.setSignalingKey(KeyUtils.createSignalingKey());
 245         SignalServiceAccountManager.NewDeviceRegistrationReturn ret = accountManager.finishNewDeviceRegistration(account.getSignalProtocolStore().getIdentityKeyPair(), account.getSignalingKey(), false, true, account.getSignalProtocolStore().getLocalRegistrationId(), deviceName);
 246
 247         username = ret.getNumber();
 248         // TODO do this check before actually registering
 249         if (SignalAccount.userExists(dataPath, username)) {
 250             throw new UserAlreadyExists(username, SignalAccount.getFileName(dataPath, username));
 251         }
 252
 253         // Create new account with the synced identity
 254         byte[] profileKey = ret.getProfileKey();
 255         if (profileKey == null) {
 256             profileKey = KeyUtils.createProfileKey();
 257         }
 258         account = SignalAccount.createLinkedAccount(dataPath, username, account.getPassword(), ret.getDeviceId(), ret.getIdentity(), account.getSignalProtocolStore().getLocalRegistrationId(), account.getSignalingKey(), profileKey);
 259
 260         refreshPreKeys();
 261
 262         requestSyncGroups();
 263         requestSyncContacts();
 264         requestSyncBlocked();
 265         requestSyncConfiguration();
 266
 267         account.save();
 268     }
 269
 270     public List<DeviceInfo> getLinkedDevices() throws IOException {
 271         List<DeviceInfo> devices = accountManager.getDevices();
 272         account.setMultiDevice(devices.size() > 1);
 273         account.save();
 274         return devices;
 275     }
 276
 277     public void removeLinkedDevices(int deviceId) throws IOException {
 278         accountManager.removeDevice(deviceId);
 279         List<DeviceInfo> devices = accountManager.getDevices();
 280         account.setMultiDevice(devices.size() > 1);
 281         account.save();
 282     }
 283
 284     public void addDeviceLink(URI linkUri) throws IOException, InvalidKeyException {
 285         Utils.DeviceLinkInfo info = Utils.parseDeviceLinkUri(linkUri);
 286
 287         addDevice(info.deviceIdentifier, info.deviceKey);
 288     }
 289
 290     private void addDevice(String deviceIdentifier, ECPublicKey deviceKey) throws IOException, InvalidKeyException {
 291         IdentityKeyPair identityKeyPair = account.getSignalProtocolStore().getIdentityKeyPair();
 292         String verificationCode = accountManager.getNewDeviceVerificationCode();
 293
 294         accountManager.addDevice(deviceIdentifier, deviceKey, identityKeyPair, Optional.of(account.getProfileKey()), verificationCode);
 295         account.setMultiDevice(true);
 296         account.save();
 297     }
 298
 299     private List<PreKeyRecord> generatePreKeys() {
 300         List<PreKeyRecord> records = new ArrayList<>(BaseConfig.PREKEY_BATCH_SIZE);
 301
 302         final int offset = account.getPreKeyIdOffset();
 303         for (int i = 0; i < BaseConfig.PREKEY_BATCH_SIZE; i++) {
 304             int preKeyId = (offset + i) % Medium.MAX_VALUE;
 305             ECKeyPair keyPair = Curve.generateKeyPair();
 306             PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);
 307
 308             records.add(record);
 309         }
 310
 311         account.addPreKeys(records);
 312         account.save();
 313
 314         return records;
 315     }
 316
 317     private SignedPreKeyRecord generateSignedPreKey(IdentityKeyPair identityKeyPair) {
 318         try {
 319             ECKeyPair keyPair = Curve.generateKeyPair();
 320             byte[] signature = Curve.calculateSignature(identityKeyPair.getPrivateKey(), keyPair.getPublicKey().serialize());
 321             SignedPreKeyRecord record = new SignedPreKeyRecord(account.getNextSignedPreKeyId(), System.currentTimeMillis(), keyPair, signature);
 322
 323             account.addSignedPreKey(record);
 324             account.save();
 325
 326             return record;
 327         } catch (InvalidKeyException e) {
 328             throw new AssertionError(e);
 329         }
 330     }
 331
 332     public void verifyAccount(String verificationCode, String pin) throws IOException {
 333         verificationCode = verificationCode.replace("-", "");
 334         account.setSignalingKey(KeyUtils.createSignalingKey());
 335         // TODO make unrestricted unidentified access configurable
 336         accountManager.verifyAccountWithCode(verificationCode, account.getSignalingKey(), account.getSignalProtocolStore().getLocalRegistrationId(), true, pin, getSelfUnidentifiedAccessKey(), false);
 337
 338         //accountManager.setGcmId(Optional.of(GoogleCloudMessaging.getInstance(this).register(REGISTRATION_ID)));
 339         account.setRegistered(true);
 340         account.setRegistrationLockPin(pin);
 341
 342         refreshPreKeys();
 343         account.save();
 344     }
 345
 346     public void setRegistrationLockPin(Optional<String> pin) throws IOException {
 347         accountManager.setPin(pin);
 348         if (pin.isPresent()) {
 349             account.setRegistrationLockPin(pin.get());
 350         } else {
 351             account.setRegistrationLockPin(null);
 352         }
 353         account.save();
 354     }
 355
 356     private void refreshPreKeys() throws IOException {
 357         List<PreKeyRecord> oneTimePreKeys = generatePreKeys();
 358         final IdentityKeyPair identityKeyPair = account.getSignalProtocolStore().getIdentityKeyPair();
 359         SignedPreKeyRecord signedPreKeyRecord = generateSignedPreKey(identityKeyPair);
 360
 361         accountManager.setPreKeys(getIdentity(), signedPreKeyRecord, oneTimePreKeys);
 362     }
 363
 364     private Optional<SignalServiceAttachmentStream> createGroupAvatarAttachment(byte[] groupId) throws IOException {
 365         File file = getGroupAvatarFile(groupId);
 366         if (!file.exists()) {
 367             return Optional.absent();
 368         }
 369
 370         return Optional.of(Utils.createAttachment(file));
 371     }
 372
 373     private Optional<SignalServiceAttachmentStream> createContactAvatarAttachment(String number) throws IOException {
 374         File file = getContactAvatarFile(number);
 375         if (!file.exists()) {
 376             return Optional.absent();
 377         }
 378
 379         return Optional.of(Utils.createAttachment(file));
 380     }
 381
 382     private GroupInfo getGroupForSending(byte[] groupId) throws GroupNotFoundException, NotAGroupMemberException {
 383         GroupInfo g = account.getGroupStore().getGroup(groupId);
 384         if (g == null) {
 385             throw new GroupNotFoundException(groupId);
 386         }
 387         for (String member : g.members) {
 388             if (member.equals(this.username)) {
 389                 return g;
 390             }
 391         }
 392         throw new NotAGroupMemberException(groupId, g.name);
 393     }
 394
 395     public List<GroupInfo> getGroups() {
 396         return account.getGroupStore().getGroups();
 397     }
 398
 399     @Override
 400     public void sendGroupMessage(String messageText, List<String> attachments,
 401                                  byte[] groupId)
 402             throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 403         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 404         if (attachments != null) {
 405             messageBuilder.withAttachments(Utils.getSignalServiceAttachments(attachments));
 406         }
 407         if (groupId != null) {
 408             SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.DELIVER)
 409                     .withId(groupId)
 410                     .build();
 411             messageBuilder.asGroupMessage(group);
 412         }
 413         ThreadInfo thread = account.getThreadStore().getThread(Base64.encodeBytes(groupId));
 414         if (thread != null) {
 415             messageBuilder.withExpiration(thread.messageExpirationTime);
 416         }
 417
 418         final GroupInfo g = getGroupForSending(groupId);
 419
 420         // Don't send group message to ourself
 421         final List<String> membersSend = new ArrayList<>(g.members);
 422         membersSend.remove(this.username);
 423         sendMessageLegacy(messageBuilder, membersSend);
 424     }
 425
 426     public void sendQuitGroupMessage(byte[] groupId) throws GroupNotFoundException, IOException, EncapsulatedExceptions {
 427         SignalServiceGroup group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.QUIT)
 428                 .withId(groupId)
 429                 .build();
 430
 431         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 432                 .asGroupMessage(group);
 433
 434         final GroupInfo g = getGroupForSending(groupId);
 435         g.members.remove(this.username);
 436         account.getGroupStore().updateGroup(g);
 437
 438         sendMessageLegacy(messageBuilder, g.members);
 439     }
 440
 441     private byte[] sendUpdateGroupMessage(byte[] groupId, String name, Collection<String> members, String avatarFile) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 442         GroupInfo g;
 443         if (groupId == null) {
 444             // Create new group
 445             g = new GroupInfo(KeyUtils.createGroupId());
 446             g.members.add(username);
 447         } else {
 448             g = getGroupForSending(groupId);
 449         }
 450
 451         if (name != null) {
 452             g.name = name;
 453         }
 454
 455         if (members != null) {
 456             Set<String> newMembers = new HashSet<>();
 457             for (String member : members) {
 458                 try {
 459                     member = Utils.canonicalizeNumber(member, username);
 460                 } catch (InvalidNumberException e) {
 461                     System.err.println("Failed to add member \"" + member + "\" to group: " + e.getMessage());
 462                     System.err.println("Aborting…");
 463                     System.exit(1);
 464                 }
 465                 if (g.members.contains(member)) {
 466                     continue;
 467                 }
 468                 newMembers.add(member);
 469                 g.members.add(member);
 470             }
 471             final List<ContactTokenDetails> contacts = accountManager.getContacts(newMembers);
 472             if (contacts.size() != newMembers.size()) {
 473                 // Some of the new members are not registered on Signal
 474                 for (ContactTokenDetails contact : contacts) {
 475                     newMembers.remove(contact.getNumber());
 476                 }
 477                 System.err.println("Failed to add members " + Util.join(", ", newMembers) + " to group: Not registered on Signal");
 478                 System.err.println("Aborting…");
 479                 System.exit(1);
 480             }
 481         }
 482
 483         if (avatarFile != null) {
 484             IOUtils.createPrivateDirectories(avatarsPath);
 485             File aFile = getGroupAvatarFile(g.groupId);
 486             Files.copy(Paths.get(avatarFile), aFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
 487         }
 488
 489         account.getGroupStore().updateGroup(g);
 490
 491         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 492
 493         // Don't send group message to ourself
 494         final List<String> membersSend = new ArrayList<>(g.members);
 495         membersSend.remove(this.username);
 496         sendMessageLegacy(messageBuilder, membersSend);
 497         return g.groupId;
 498     }
 499
 500     private void sendUpdateGroupMessage(byte[] groupId, String recipient) throws IOException, EncapsulatedExceptions {
 501         if (groupId == null) {
 502             return;
 503         }
 504         GroupInfo g = getGroupForSending(groupId);
 505
 506         if (!g.members.contains(recipient)) {
 507             return;
 508         }
 509
 510         SignalServiceDataMessage.Builder messageBuilder = getGroupUpdateMessageBuilder(g);
 511
 512         // Send group message only to the recipient who requested it
 513         final List<String> membersSend = new ArrayList<>();
 514         membersSend.add(recipient);
 515         sendMessageLegacy(messageBuilder, membersSend);
 516     }
 517
 518     private SignalServiceDataMessage.Builder getGroupUpdateMessageBuilder(GroupInfo g) {
 519         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.UPDATE)
 520                 .withId(g.groupId)
 521                 .withName(g.name)
 522                 .withMembers(new ArrayList<>(g.members));
 523
 524         File aFile = getGroupAvatarFile(g.groupId);
 525         if (aFile.exists()) {
 526             try {
 527                 group.withAvatar(Utils.createAttachment(aFile));
 528             } catch (IOException e) {
 529                 throw new AttachmentInvalidException(aFile.toString(), e);
 530             }
 531         }
 532
 533         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 534                 .asGroupMessage(group.build());
 535
 536         ThreadInfo thread = account.getThreadStore().getThread(Base64.encodeBytes(g.groupId));
 537         if (thread != null) {
 538             messageBuilder.withExpiration(thread.messageExpirationTime);
 539         }
 540
 541         return messageBuilder;
 542     }
 543
 544     private void sendGroupInfoRequest(byte[] groupId, String recipient) throws IOException, EncapsulatedExceptions {
 545         if (groupId == null) {
 546             return;
 547         }
 548
 549         SignalServiceGroup.Builder group = SignalServiceGroup.newBuilder(SignalServiceGroup.Type.REQUEST_INFO)
 550                 .withId(groupId);
 551
 552         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 553                 .asGroupMessage(group.build());
 554
 555         ThreadInfo thread = account.getThreadStore().getThread(Base64.encodeBytes(groupId));
 556         if (thread != null) {
 557             messageBuilder.withExpiration(thread.messageExpirationTime);
 558         }
 559
 560         // Send group info request message to the recipient who sent us a message with this groupId
 561         final List<String> membersSend = new ArrayList<>();
 562         membersSend.add(recipient);
 563         sendMessageLegacy(messageBuilder, membersSend);
 564     }
 565
 566     @Override
 567     public void sendMessage(String message, List<String> attachments, String recipient)
 568             throws EncapsulatedExceptions, AttachmentInvalidException, IOException {
 569         List<String> recipients = new ArrayList<>(1);
 570         recipients.add(recipient);
 571         sendMessage(message, attachments, recipients);
 572     }
 573
 574     @Override
 575     public void sendMessage(String messageText, List<String> attachments,
 576                             List<String> recipients)
 577             throws IOException, EncapsulatedExceptions, AttachmentInvalidException {
 578         final SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder().withBody(messageText);
 579         if (attachments != null) {
 580             messageBuilder.withAttachments(Utils.getSignalServiceAttachments(attachments));
 581         }
 582         messageBuilder.withProfileKey(account.getProfileKey());
 583         sendMessageLegacy(messageBuilder, recipients);
 584     }
 585
 586     @Override
 587     public void sendEndSessionMessage(List<String> recipients) throws IOException, EncapsulatedExceptions {
 588         SignalServiceDataMessage.Builder messageBuilder = SignalServiceDataMessage.newBuilder()
 589                 .asEndSessionMessage();
 590
 591         sendMessageLegacy(messageBuilder, recipients);
 592     }
 593
 594     @Override
 595     public String getContactName(String number) {
 596         ContactInfo contact = account.getContactStore().getContact(number);
 597         if (contact == null) {
 598             return "";
 599         } else {
 600             return contact.name;
 601         }
 602     }
 603
 604     @Override
 605     public void setContactName(String number, String name) {
 606         ContactInfo contact = account.getContactStore().getContact(number);
 607         if (contact == null) {
 608             contact = new ContactInfo();
 609             contact.number = number;
 610             System.err.println("Add contact " + number + " named " + name);
 611         } else {
 612             System.err.println("Updating contact " + number + " name " + contact.name + " -> " + name);
 613         }
 614         contact.name = name;
 615         account.getContactStore().updateContact(contact);
 616         account.save();
 617     }
 618
 619     @Override
 620     public List<byte[]> getGroupIds() {
 621         List<GroupInfo> groups = getGroups();
 622         List<byte[]> ids = new ArrayList<>(groups.size());
 623         for (GroupInfo group : groups) {
 624             ids.add(group.groupId);
 625         }
 626         return ids;
 627     }
 628
 629     @Override
 630     public String getGroupName(byte[] groupId) {
 631         GroupInfo group = getGroup(groupId);
 632         if (group == null) {
 633             return "";
 634         } else {
 635             return group.name;
 636         }
 637     }
 638
 639     @Override
 640     public List<String> getGroupMembers(byte[] groupId) {
 641         GroupInfo group = getGroup(groupId);
 642         if (group == null) {
 643             return new ArrayList<>();
 644         } else {
 645             return new ArrayList<>(group.members);
 646         }
 647     }
 648
 649     @Override
 650     public byte[] updateGroup(byte[] groupId, String name, List<String> members, String avatar) throws IOException, EncapsulatedExceptions, GroupNotFoundException, AttachmentInvalidException {
 651         if (groupId.length == 0) {
 652             groupId = null;
 653         }
 654         if (name.isEmpty()) {
 655             name = null;
 656         }
 657         if (members.size() == 0) {
 658             members = null;
 659         }
 660         if (avatar.isEmpty()) {
 661             avatar = null;
 662         }
 663         return sendUpdateGroupMessage(groupId, name, members, avatar);
 664     }
 665
 666     /**
 667      * Change the expiration timer for a thread (number of groupId)
 668      *
 669      * @param numberOrGroupId
 670      * @param messageExpirationTimer
 671      */
 672     public void setExpirationTimer(String numberOrGroupId, int messageExpirationTimer) {
 673         ThreadInfo thread = account.getThreadStore().getThread(numberOrGroupId);
 674         thread.messageExpirationTime = messageExpirationTimer;
 675         account.getThreadStore().updateThread(thread);
 676     }
 677
 678     private void requestSyncGroups() throws IOException {
 679         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.GROUPS).build();
 680         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 681         try {
 682             sendSyncMessage(message);
 683         } catch (UntrustedIdentityException e) {
 684             e.printStackTrace();
 685         }
 686     }
 687
 688     private void requestSyncContacts() throws IOException {
 689         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONTACTS).build();
 690         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 691         try {
 692             sendSyncMessage(message);
 693         } catch (UntrustedIdentityException e) {
 694             e.printStackTrace();
 695         }
 696     }
 697
 698     private void requestSyncBlocked() throws IOException {
 699         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.BLOCKED).build();
 700         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 701         try {
 702             sendSyncMessage(message);
 703         } catch (UntrustedIdentityException e) {
 704             e.printStackTrace();
 705         }
 706     }
 707
 708     private void requestSyncConfiguration() throws IOException {
 709         SignalServiceProtos.SyncMessage.Request r = SignalServiceProtos.SyncMessage.Request.newBuilder().setType(SignalServiceProtos.SyncMessage.Request.Type.CONFIGURATION).build();
 710         SignalServiceSyncMessage message = SignalServiceSyncMessage.forRequest(new RequestMessage(r));
 711         try {
 712             sendSyncMessage(message);
 713         } catch (UntrustedIdentityException e) {
 714             e.printStackTrace();
 715         }
 716     }
 717
 718     private byte[] getSelfUnidentifiedAccessKey() {
 719         return UnidentifiedAccess.deriveAccessKeyFrom(account.getProfileKey());
 720     }
 721
 722     private byte[] getTargetUnidentifiedAccessKey(SignalServiceAddress recipient) {
 723         // TODO implement
 724         return null;
 725     }
 726
 727     private Optional<UnidentifiedAccessPair> getAccessForSync() {
 728         // TODO implement
 729         return Optional.absent();
 730     }
 731
 732     private List<Optional<UnidentifiedAccessPair>> getAccessFor(Collection<SignalServiceAddress> recipients) {
 733         List<Optional<UnidentifiedAccessPair>> result = new ArrayList<>(recipients.size());
 734         for (SignalServiceAddress recipient : recipients) {
 735             result.add(Optional.<UnidentifiedAccessPair>absent());
 736         }
 737         return result;
 738     }
 739
 740     private Optional<UnidentifiedAccessPair> getAccessFor(SignalServiceAddress recipient) {
 741         // TODO implement
 742         return Optional.absent();
 743     }
 744
 745     private void sendSyncMessage(SignalServiceSyncMessage message)
 746             throws IOException, UntrustedIdentityException {
 747         SignalServiceMessageSender messageSender = new SignalServiceMessageSender(BaseConfig.serviceConfiguration, username, account.getPassword(),
 748                 account.getDeviceId(), account.getSignalProtocolStore(), BaseConfig.USER_AGENT, account.isMultiDevice(), Optional.fromNullable(messagePipe), Optional.fromNullable(unidentifiedMessagePipe), Optional.<SignalServiceMessageSender.EventListener>absent());
 749         try {
 750             messageSender.sendMessage(message, getAccessForSync());
 751         } catch (UntrustedIdentityException e) {
 752             account.getSignalProtocolStore().saveIdentity(e.getE164Number(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
 753             throw e;
 754         }
 755     }
 756
 757     /**
 758      * This method throws an EncapsulatedExceptions exception instead of returning a list of SendMessageResult.
 759      */
 760     private void sendMessageLegacy(SignalServiceDataMessage.Builder messageBuilder, Collection<String> recipients)
 761             throws EncapsulatedExceptions, IOException {
 762         List<SendMessageResult> results = sendMessage(messageBuilder, recipients);
 763
 764         List<UntrustedIdentityException> untrustedIdentities = new LinkedList<>();
 765         List<UnregisteredUserException> unregisteredUsers = new LinkedList<>();
 766         List<NetworkFailureException> networkExceptions = new LinkedList<>();
 767
 768         for (SendMessageResult result : results) {
 769             if (result.isUnregisteredFailure()) {
 770                 unregisteredUsers.add(new UnregisteredUserException(result.getAddress().getNumber(), null));
 771             } else if (result.isNetworkFailure()) {
 772                 networkExceptions.add(new NetworkFailureException(result.getAddress().getNumber(), null));
 773             } else if (result.getIdentityFailure() != null) {
 774                 untrustedIdentities.add(new UntrustedIdentityException("Untrusted", result.getAddress().getNumber(), result.getIdentityFailure().getIdentityKey()));
 775             }
 776         }
 777         if (!untrustedIdentities.isEmpty() || !unregisteredUsers.isEmpty() || !networkExceptions.isEmpty()) {
 778             throw new EncapsulatedExceptions(untrustedIdentities, unregisteredUsers, networkExceptions);
 779         }
 780     }
 781
 782     private List<SendMessageResult> sendMessage(SignalServiceDataMessage.Builder messageBuilder, Collection<String> recipients)
 783             throws IOException {
 784         Set<SignalServiceAddress> recipientsTS = Utils.getSignalServiceAddresses(recipients, username);
 785         if (recipientsTS == null) {
 786             account.save();
 787             return Collections.emptyList();
 788         }
 789
 790         SignalServiceDataMessage message = null;
 791         try {
 792             SignalServiceMessageSender messageSender = new SignalServiceMessageSender(BaseConfig.serviceConfiguration, username, account.getPassword(),
 793                     account.getDeviceId(), account.getSignalProtocolStore(), BaseConfig.USER_AGENT, account.isMultiDevice(), Optional.fromNullable(messagePipe), Optional.fromNullable(unidentifiedMessagePipe), Optional.<SignalServiceMessageSender.EventListener>absent());
 794
 795             message = messageBuilder.build();
 796             if (message.getGroupInfo().isPresent()) {
 797                 try {
 798                     final boolean isRecipientUpdate = false;
 799                     List<SendMessageResult> result = messageSender.sendMessage(new ArrayList<>(recipientsTS), getAccessFor(recipientsTS), isRecipientUpdate, message);
 800                     for (SendMessageResult r : result) {
 801                         if (r.getIdentityFailure() != null) {
 802                             account.getSignalProtocolStore().saveIdentity(r.getAddress().getNumber(), r.getIdentityFailure().getIdentityKey(), TrustLevel.UNTRUSTED);
 803                         }
 804                     }
 805                     return result;
 806                 } catch (UntrustedIdentityException e) {
 807                     account.getSignalProtocolStore().saveIdentity(e.getE164Number(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
 808                     return Collections.emptyList();
 809                 }
 810             } else if (recipientsTS.size() == 1 && recipientsTS.contains(new SignalServiceAddress(username))) {
 811                 SignalServiceAddress recipient = new SignalServiceAddress(username);
 812                 final Optional<UnidentifiedAccessPair> unidentifiedAccess = getAccessFor(recipient);
 813                 SentTranscriptMessage transcript = new SentTranscriptMessage(recipient.getNumber(),
 814                         message.getTimestamp(),
 815                         message,
 816                         message.getExpiresInSeconds(),
 817                         Collections.singletonMap(recipient.getNumber(), unidentifiedAccess.isPresent()),
 818                         false);
 819                 SignalServiceSyncMessage syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
 820
 821                 List<SendMessageResult> results = new ArrayList<>(recipientsTS.size());
 822                 try {
 823                     messageSender.sendMessage(syncMessage, unidentifiedAccess);
 824                 } catch (UntrustedIdentityException e) {
 825                     account.getSignalProtocolStore().saveIdentity(e.getE164Number(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
 826                     results.add(SendMessageResult.identityFailure(recipient, e.getIdentityKey()));
 827                 }
 828                 return results;
 829             } else {
 830                 // Send to all individually, so sync messages are sent correctly
 831                 List<SendMessageResult> results = new ArrayList<>(recipientsTS.size());
 832                 for (SignalServiceAddress address : recipientsTS) {
 833                     ThreadInfo thread = account.getThreadStore().getThread(address.getNumber());
 834                     if (thread != null) {
 835                         messageBuilder.withExpiration(thread.messageExpirationTime);
 836                     } else {
 837                         messageBuilder.withExpiration(0);
 838                     }
 839                     message = messageBuilder.build();
 840                     try {
 841                         SendMessageResult result = messageSender.sendMessage(address, getAccessFor(address), message);
 842                         results.add(result);
 843                     } catch (UntrustedIdentityException e) {
 844                         account.getSignalProtocolStore().saveIdentity(e.getE164Number(), e.getIdentityKey(), TrustLevel.UNTRUSTED);
 845                         results.add(SendMessageResult.identityFailure(address, e.getIdentityKey()));
 846                     }
 847                 }
 848                 return results;
 849             }
 850         } finally {
 851             if (message != null && message.isEndSession()) {
 852                 for (SignalServiceAddress recipient : recipientsTS) {
 853                     handleEndSession(recipient.getNumber());
 854                 }
 855             }
 856             account.save();
 857         }
 858     }
 859
 860     private SignalServiceContent decryptMessage(SignalServiceEnvelope envelope) throws InvalidMetadataMessageException, ProtocolInvalidMessageException, ProtocolDuplicateMessageException, ProtocolLegacyMessageException, ProtocolInvalidKeyIdException, InvalidMetadataVersionException, ProtocolInvalidVersionException, ProtocolNoSessionException, ProtocolInvalidKeyException, ProtocolUntrustedIdentityException, SelfSendException, UnsupportedDataMessageException {
 861         SignalServiceCipher cipher = new SignalServiceCipher(new SignalServiceAddress(username), account.getSignalProtocolStore(), Utils.getCertificateValidator());
 862         try {
 863             return cipher.decrypt(envelope);
 864         } catch (ProtocolUntrustedIdentityException e) {
 865             // TODO We don't get the new untrusted identity from ProtocolUntrustedIdentityException anymore ... we need to get it from somewhere else
 866 //            account.getSignalProtocolStore().saveIdentity(e.getSender(), e.getUntrustedIdentity(), TrustLevel.UNTRUSTED);
 867             throw e;
 868         }
 869     }
 870
 871     private void handleEndSession(String source) {
 872         account.getSignalProtocolStore().deleteAllSessions(source);
 873     }
 874
 875     private void handleSignalServiceDataMessage(SignalServiceDataMessage message, boolean isSync, String source, String destination, boolean ignoreAttachments) {
 876         String threadId;
 877         if (message.getGroupInfo().isPresent()) {
 878             SignalServiceGroup groupInfo = message.getGroupInfo().get();
 879             threadId = Base64.encodeBytes(groupInfo.getGroupId());
 880             GroupInfo group = account.getGroupStore().getGroup(groupInfo.getGroupId());
 881             switch (groupInfo.getType()) {
 882                 case UPDATE:
 883                     if (group == null) {
 884                         group = new GroupInfo(groupInfo.getGroupId());
 885                     }
 886
 887                     if (groupInfo.getAvatar().isPresent()) {
 888                         SignalServiceAttachment avatar = groupInfo.getAvatar().get();
 889                         if (avatar.isPointer()) {
 890                             try {
 891                                 retrieveGroupAvatarAttachment(avatar.asPointer(), group.groupId);
 892                             } catch (IOException | InvalidMessageException e) {
 893                                 System.err.println("Failed to retrieve group avatar (" + avatar.asPointer().getId() + "): " + e.getMessage());
 894                             }
 895                         }
 896                     }
 897
 898                     if (groupInfo.getName().isPresent()) {
 899                         group.name = groupInfo.getName().get();
 900                     }
 901
 902                     if (groupInfo.getMembers().isPresent()) {
 903                         group.members.addAll(groupInfo.getMembers().get());
 904                     }
 905
 906                     account.getGroupStore().updateGroup(group);
 907                     break;
 908                 case DELIVER:
 909                     if (group == null) {
 910                         try {
 911                             sendGroupInfoRequest(groupInfo.getGroupId(), source);
 912                         } catch (IOException | EncapsulatedExceptions e) {
 913                             e.printStackTrace();
 914                         }
 915                     }
 916                     break;
 917                 case QUIT:
 918                     if (group == null) {
 919                         try {
 920                             sendGroupInfoRequest(groupInfo.getGroupId(), source);
 921                         } catch (IOException | EncapsulatedExceptions e) {
 922                             e.printStackTrace();
 923                         }
 924                     } else {
 925                         group.members.remove(source);
 926                         account.getGroupStore().updateGroup(group);
 927                     }
 928                     break;
 929                 case REQUEST_INFO:
 930                     if (group != null) {
 931                         try {
 932                             sendUpdateGroupMessage(groupInfo.getGroupId(), source);
 933                         } catch (IOException | EncapsulatedExceptions e) {
 934                             e.printStackTrace();
 935                         } catch (NotAGroupMemberException e) {
 936                             // We have left this group, so don't send a group update message
 937                         }
 938                     }
 939                     break;
 940             }
 941         } else {
 942             if (isSync) {
 943                 threadId = destination;
 944             } else {
 945                 threadId = source;
 946             }
 947         }
 948         if (message.isEndSession()) {
 949             handleEndSession(isSync ? destination : source);
 950         }
 951         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
 952             ThreadInfo thread = account.getThreadStore().getThread(threadId);
 953             if (thread == null) {
 954                 thread = new ThreadInfo();
 955                 thread.id = threadId;
 956             }
 957             if (thread.messageExpirationTime != message.getExpiresInSeconds()) {
 958                 thread.messageExpirationTime = message.getExpiresInSeconds();
 959                 account.getThreadStore().updateThread(thread);
 960             }
 961         }
 962         if (message.getAttachments().isPresent() && !ignoreAttachments) {
 963             for (SignalServiceAttachment attachment : message.getAttachments().get()) {
 964                 if (attachment.isPointer()) {
 965                     try {
 966                         retrieveAttachment(attachment.asPointer());
 967                     } catch (IOException | InvalidMessageException e) {
 968                         System.err.println("Failed to retrieve attachment (" + attachment.asPointer().getId() + "): " + e.getMessage());
 969                     }
 970                 }
 971             }
 972         }
 973         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
 974             if (source.equals(username)) {
 975                 this.account.setProfileKey(message.getProfileKey().get());
 976             }
 977             ContactInfo contact = account.getContactStore().getContact(source);
 978             if (contact == null) {
 979                 contact = new ContactInfo();
 980                 contact.number = source;
 981             }
 982             contact.profileKey = Base64.encodeBytes(message.getProfileKey().get());
 983         }
 984     }
 985
 986     private void retryFailedReceivedMessages(ReceiveMessageHandler handler, boolean ignoreAttachments) {
 987         final File cachePath = new File(getMessageCachePath());
 988         if (!cachePath.exists()) {
 989             return;
 990         }
 991         for (final File dir : Objects.requireNonNull(cachePath.listFiles())) {
 992             if (!dir.isDirectory()) {
 993                 continue;
 994             }
 995
 996             for (final File fileEntry : Objects.requireNonNull(dir.listFiles())) {
 997                 if (!fileEntry.isFile()) {
 998                     continue;
 999                 }
1000                 SignalServiceEnvelope envelope;
1001                 try {
1002                     envelope = Utils.loadEnvelope(fileEntry);
1003                     if (envelope == null) {
1004                         continue;
1005                     }
1006                 } catch (IOException e) {
1007                     e.printStackTrace();
1008                     continue;
1009                 }
1010                 SignalServiceContent content = null;
1011                 if (!envelope.isReceipt()) {
1012                     try {
1013                         content = decryptMessage(envelope);
1014                     } catch (Exception e) {
1015                         continue;
1016                     }
1017                     handleMessage(envelope, content, ignoreAttachments);
1018                 }
1019                 account.save();
1020                 handler.handleMessage(envelope, content, null);
1021                 try {
1022                     Files.delete(fileEntry.toPath());
1023                 } catch (IOException e) {
1024                     System.err.println("Failed to delete cached message file “" + fileEntry + "”: " + e.getMessage());
1025                 }
1026             }
1027             // Try to delete directory if empty
1028             dir.delete();
1029         }
1030     }
1031
1032     public void receiveMessages(long timeout, TimeUnit unit, boolean returnOnTimeout, boolean ignoreAttachments, ReceiveMessageHandler handler) throws IOException {
1033         retryFailedReceivedMessages(handler, ignoreAttachments);
1034         final SignalServiceMessageReceiver messageReceiver = new SignalServiceMessageReceiver(BaseConfig.serviceConfiguration, username, account.getPassword(), account.getDeviceId(), account.getSignalingKey(), BaseConfig.USER_AGENT, null, timer);
1035
1036         try {
1037             if (messagePipe == null) {
1038                 messagePipe = messageReceiver.createMessagePipe();
1039             }
1040
1041             while (true) {
1042                 SignalServiceEnvelope envelope;
1043                 SignalServiceContent content = null;
1044                 Exception exception = null;
1045                 final long now = new Date().getTime();
1046                 try {
1047                     envelope = messagePipe.read(timeout, unit, new SignalServiceMessagePipe.MessagePipeCallback() {
1048                         @Override
1049                         public void onMessage(SignalServiceEnvelope envelope) {
1050                             // store message on disk, before acknowledging receipt to the server
1051                             try {
1052                                 File cacheFile = getMessageCacheFile(envelope.getSource(), now, envelope.getTimestamp());
1053                                 Utils.storeEnvelope(envelope, cacheFile);
1054                             } catch (IOException e) {
1055                                 System.err.println("Failed to store encrypted message in disk cache, ignoring: " + e.getMessage());
1056                             }
1057                         }
1058                     });
1059                 } catch (TimeoutException e) {
1060                     if (returnOnTimeout)
1061                         return;
1062                     continue;
1063                 } catch (InvalidVersionException e) {
1064                     System.err.println("Ignoring error: " + e.getMessage());
1065                     continue;
1066                 }
1067                 if (!envelope.isReceipt()) {
1068                     try {
1069                         content = decryptMessage(envelope);
1070                     } catch (Exception e) {
1071                         exception = e;
1072                     }
1073                     handleMessage(envelope, content, ignoreAttachments);
1074                 }
1075                 account.save();
1076                 handler.handleMessage(envelope, content, exception);
1077                 if (!(exception instanceof ProtocolUntrustedIdentityException)) {
1078                     File cacheFile = null;
1079                     try {
1080                         cacheFile = getMessageCacheFile(envelope.getSource(), now, envelope.getTimestamp());
1081                         Files.delete(cacheFile.toPath());
1082                         // Try to delete directory if empty
1083                         new File(getMessageCachePath()).delete();
1084                     } catch (IOException e) {
1085                         System.err.println("Failed to delete cached message file “" + cacheFile + "”: " + e.getMessage());
1086                     }
1087                 }
1088             }
1089         } finally {
1090             if (messagePipe != null) {
1091                 messagePipe.shutdown();
1092                 messagePipe = null;
1093             }
1094         }
1095     }
1096
1097     private void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments) {
1098         if (content != null) {
1099             if (content.getDataMessage().isPresent()) {
1100                 SignalServiceDataMessage message = content.getDataMessage().get();
1101                 handleSignalServiceDataMessage(message, false, envelope.getSource(), username, ignoreAttachments);
1102             }
1103             if (content.getSyncMessage().isPresent()) {
1104                 account.setMultiDevice(true);
1105                 SignalServiceSyncMessage syncMessage = content.getSyncMessage().get();
1106                 if (syncMessage.getSent().isPresent()) {
1107                     SignalServiceDataMessage message = syncMessage.getSent().get().getMessage();
1108                     handleSignalServiceDataMessage(message, true, envelope.getSource(), syncMessage.getSent().get().getDestination().get(), ignoreAttachments);
1109                 }
1110                 if (syncMessage.getRequest().isPresent()) {
1111                     RequestMessage rm = syncMessage.getRequest().get();
1112                     if (rm.isContactsRequest()) {
1113                         try {
1114                             sendContacts();
1115                         } catch (UntrustedIdentityException | IOException e) {
1116                             e.printStackTrace();
1117                         }
1118                     }
1119                     if (rm.isGroupsRequest()) {
1120                         try {
1121                             sendGroups();
1122                         } catch (UntrustedIdentityException | IOException e) {
1123                             e.printStackTrace();
1124                         }
1125                     }
1126                     // TODO Handle rm.isBlockedListRequest(); rm.isConfigurationRequest();
1127                 }
1128                 if (syncMessage.getGroups().isPresent()) {
1129                     File tmpFile = null;
1130                     try {
1131                         tmpFile = IOUtils.createTempFile();
1132                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(syncMessage.getGroups().get().asPointer(), tmpFile)) {
1133                             DeviceGroupsInputStream s = new DeviceGroupsInputStream(attachmentAsStream);
1134                             DeviceGroup g;
1135                             while ((g = s.read()) != null) {
1136                                 GroupInfo syncGroup = account.getGroupStore().getGroup(g.getId());
1137                                 if (syncGroup == null) {
1138                                     syncGroup = new GroupInfo(g.getId());
1139                                 }
1140                                 if (g.getName().isPresent()) {
1141                                     syncGroup.name = g.getName().get();
1142                                 }
1143                                 syncGroup.members.addAll(g.getMembers());
1144                                 syncGroup.active = g.isActive();
1145                                 if (g.getColor().isPresent()) {
1146                                     syncGroup.color = g.getColor().get();
1147                                 }
1148
1149                                 if (g.getAvatar().isPresent()) {
1150                                     retrieveGroupAvatarAttachment(g.getAvatar().get(), syncGroup.groupId);
1151                                 }
1152                                 account.getGroupStore().updateGroup(syncGroup);
1153                             }
1154                         }
1155                     } catch (Exception e) {
1156                         e.printStackTrace();
1157                     } finally {
1158                         if (tmpFile != null) {
1159                             try {
1160                                 Files.delete(tmpFile.toPath());
1161                             } catch (IOException e) {
1162                                 System.err.println("Failed to delete received groups temp file “" + tmpFile + "”: " + e.getMessage());
1163                             }
1164                         }
1165                     }
1166                 }
1167                 if (syncMessage.getBlockedList().isPresent()) {
1168                     // TODO store list of blocked numbers
1169                 }
1170                 if (syncMessage.getContacts().isPresent()) {
1171                     File tmpFile = null;
1172                     try {
1173                         tmpFile = IOUtils.createTempFile();
1174                         final ContactsMessage contactsMessage = syncMessage.getContacts().get();
1175                         try (InputStream attachmentAsStream = retrieveAttachmentAsStream(contactsMessage.getContactsStream().asPointer(), tmpFile)) {
1176                             DeviceContactsInputStream s = new DeviceContactsInputStream(attachmentAsStream);
1177                             if (contactsMessage.isComplete()) {
1178                                 account.getContactStore().clear();
1179                             }
1180                             DeviceContact c;
1181                             while ((c = s.read()) != null) {
1182                                 if (c.getNumber().equals(account.getUsername()) && c.getProfileKey().isPresent()) {
1183                                     account.setProfileKey(c.getProfileKey().get());
1184                                 }
1185                                 ContactInfo contact = account.getContactStore().getContact(c.getNumber());
1186                                 if (contact == null) {
1187                                     contact = new ContactInfo();
1188                                     contact.number = c.getNumber();
1189                                 }
1190                                 if (c.getName().isPresent()) {
1191                                     contact.name = c.getName().get();
1192                                 }
1193                                 if (c.getColor().isPresent()) {
1194                                     contact.color = c.getColor().get();
1195                                 }
1196                                 if (c.getProfileKey().isPresent()) {
1197                                     contact.profileKey = Base64.encodeBytes(c.getProfileKey().get());
1198                                 }
1199                                 if (c.getVerified().isPresent()) {
1200                                     final VerifiedMessage verifiedMessage = c.getVerified().get();
1201                                     account.getSignalProtocolStore().saveIdentity(verifiedMessage.getDestination(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1202                                 }
1203                                 if (c.getExpirationTimer().isPresent()) {
1204                                     ThreadInfo thread = account.getThreadStore().getThread(c.getNumber());
1205                                     if (thread == null) {
1206                                         thread = new ThreadInfo();
1207                                         thread.id = c.getNumber();
1208                                     }
1209                                     thread.messageExpirationTime = c.getExpirationTimer().get();
1210                                     account.getThreadStore().updateThread(thread);
1211                                 }
1212                                 if (c.isBlocked()) {
1213                                     // TODO store list of blocked numbers
1214                                 }
1215                                 account.getContactStore().updateContact(contact);
1216
1217                                 if (c.getAvatar().isPresent()) {
1218                                     retrieveContactAvatarAttachment(c.getAvatar().get(), contact.number);
1219                                 }
1220                             }
1221                         }
1222                     } catch (Exception e) {
1223                         e.printStackTrace();
1224                     } finally {
1225                         if (tmpFile != null) {
1226                             try {
1227                                 Files.delete(tmpFile.toPath());
1228                             } catch (IOException e) {
1229                                 System.err.println("Failed to delete received contacts temp file “" + tmpFile + "”: " + e.getMessage());
1230                             }
1231                         }
1232                     }
1233                 }
1234                 if (syncMessage.getVerified().isPresent()) {
1235                     final VerifiedMessage verifiedMessage = syncMessage.getVerified().get();
1236                     account.getSignalProtocolStore().saveIdentity(verifiedMessage.getDestination(), verifiedMessage.getIdentityKey(), TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
1237                 }
1238                 if (syncMessage.getConfiguration().isPresent()) {
1239                     // TODO
1240                 }
1241             }
1242         }
1243     }
1244
1245     private File getContactAvatarFile(String number) {
1246         return new File(avatarsPath, "contact-" + number);
1247     }
1248
1249     private File retrieveContactAvatarAttachment(SignalServiceAttachment attachment, String number) throws IOException, InvalidMessageException {
1250         IOUtils.createPrivateDirectories(avatarsPath);
1251         if (attachment.isPointer()) {
1252             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1253             return retrieveAttachment(pointer, getContactAvatarFile(number), false);
1254         } else {
1255             SignalServiceAttachmentStream stream = attachment.asStream();
1256             return Utils.retrieveAttachment(stream, getContactAvatarFile(number));
1257         }
1258     }
1259
1260     private File getGroupAvatarFile(byte[] groupId) {
1261         return new File(avatarsPath, "group-" + Base64.encodeBytes(groupId).replace("/", "_"));
1262     }
1263
1264     private File retrieveGroupAvatarAttachment(SignalServiceAttachment attachment, byte[] groupId) throws IOException, InvalidMessageException {
1265         IOUtils.createPrivateDirectories(avatarsPath);
1266         if (attachment.isPointer()) {
1267             SignalServiceAttachmentPointer pointer = attachment.asPointer();
1268             return retrieveAttachment(pointer, getGroupAvatarFile(groupId), false);
1269         } else {
1270             SignalServiceAttachmentStream stream = attachment.asStream();
1271             return Utils.retrieveAttachment(stream, getGroupAvatarFile(groupId));
1272         }
1273     }
1274
1275     public File getAttachmentFile(long attachmentId) {
1276         return new File(attachmentsPath, attachmentId + "");
1277     }
1278
1279     private File retrieveAttachment(SignalServiceAttachmentPointer pointer) throws IOException, InvalidMessageException {
1280         IOUtils.createPrivateDirectories(attachmentsPath);
1281         return retrieveAttachment(pointer, getAttachmentFile(pointer.getId()), true);
1282     }
1283
1284     private File retrieveAttachment(SignalServiceAttachmentPointer pointer, File outputFile, boolean storePreview) throws IOException, InvalidMessageException {
1285         if (storePreview && pointer.getPreview().isPresent()) {
1286             File previewFile = new File(outputFile + ".preview");
1287             try (OutputStream output = new FileOutputStream(previewFile)) {
1288                 byte[] preview = pointer.getPreview().get();
1289                 output.write(preview, 0, preview.length);
1290             } catch (FileNotFoundException e) {
1291                 e.printStackTrace();
1292                 return null;
1293             }
1294         }
1295
1296         final SignalServiceMessageReceiver messageReceiver = new SignalServiceMessageReceiver(BaseConfig.serviceConfiguration, username, account.getPassword(), account.getDeviceId(), account.getSignalingKey(), BaseConfig.USER_AGENT, null, timer);
1297
1298         File tmpFile = IOUtils.createTempFile();
1299         try (InputStream input = messageReceiver.retrieveAttachment(pointer, tmpFile, BaseConfig.MAX_ATTACHMENT_SIZE)) {
1300             try (OutputStream output = new FileOutputStream(outputFile)) {
1301                 byte[] buffer = new byte[4096];
1302                 int read;
1303
1304                 while ((read = input.read(buffer)) != -1) {
1305                     output.write(buffer, 0, read);
1306                 }
1307             } catch (FileNotFoundException e) {
1308                 e.printStackTrace();
1309                 return null;
1310             }
1311         } finally {
1312             try {
1313                 Files.delete(tmpFile.toPath());
1314             } catch (IOException e) {
1315                 System.err.println("Failed to delete received attachment temp file “" + tmpFile + "”: " + e.getMessage());
1316             }
1317         }
1318         return outputFile;
1319     }
1320
1321     private InputStream retrieveAttachmentAsStream(SignalServiceAttachmentPointer pointer, File tmpFile) throws IOException, InvalidMessageException {
1322         final SignalServiceMessageReceiver messageReceiver = new SignalServiceMessageReceiver(BaseConfig.serviceConfiguration, username, account.getPassword(), account.getDeviceId(), account.getSignalingKey(), BaseConfig.USER_AGENT, null, timer);
1323         return messageReceiver.retrieveAttachment(pointer, tmpFile, BaseConfig.MAX_ATTACHMENT_SIZE);
1324     }
1325
1326     @Override
1327     public boolean isRemote() {
1328         return false;
1329     }
1330
1331     private void sendGroups() throws IOException, UntrustedIdentityException {
1332         File groupsFile = IOUtils.createTempFile();
1333
1334         try {
1335             try (OutputStream fos = new FileOutputStream(groupsFile)) {
1336                 DeviceGroupsOutputStream out = new DeviceGroupsOutputStream(fos);
1337                 for (GroupInfo record : account.getGroupStore().getGroups()) {
1338                     ThreadInfo info = account.getThreadStore().getThread(Base64.encodeBytes(record.groupId));
1339                     out.write(new DeviceGroup(record.groupId, Optional.fromNullable(record.name),
1340                             new ArrayList<>(record.members), createGroupAvatarAttachment(record.groupId),
1341                             record.active, Optional.fromNullable(info != null ? info.messageExpirationTime : null),
1342                             Optional.fromNullable(record.color), false));
1343                 }
1344             }
1345
1346             if (groupsFile.exists() && groupsFile.length() > 0) {
1347                 try (FileInputStream groupsFileStream = new FileInputStream(groupsFile)) {
1348                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1349                             .withStream(groupsFileStream)
1350                             .withContentType("application/octet-stream")
1351                             .withLength(groupsFile.length())
1352                             .build();
1353
1354                     sendSyncMessage(SignalServiceSyncMessage.forGroups(attachmentStream));
1355                 }
1356             }
1357         } finally {
1358             try {
1359                 Files.delete(groupsFile.toPath());
1360             } catch (IOException e) {
1361                 System.err.println("Failed to delete groups temp file “" + groupsFile + "”: " + e.getMessage());
1362             }
1363         }
1364     }
1365
1366     private void sendContacts() throws IOException, UntrustedIdentityException {
1367         File contactsFile = IOUtils.createTempFile();
1368
1369         try {
1370             try (OutputStream fos = new FileOutputStream(contactsFile)) {
1371                 DeviceContactsOutputStream out = new DeviceContactsOutputStream(fos);
1372                 for (ContactInfo record : account.getContactStore().getContacts()) {
1373                     VerifiedMessage verifiedMessage = null;
1374                     ThreadInfo info = account.getThreadStore().getThread(record.number);
1375                     if (getIdentities().containsKey(record.number)) {
1376                         JsonIdentityKeyStore.Identity currentIdentity = null;
1377                         for (JsonIdentityKeyStore.Identity id : getIdentities().get(record.number)) {
1378                             if (currentIdentity == null || id.getDateAdded().after(currentIdentity.getDateAdded())) {
1379                                 currentIdentity = id;
1380                             }
1381                         }
1382                         if (currentIdentity != null) {
1383                             verifiedMessage = new VerifiedMessage(record.number, currentIdentity.getIdentityKey(), currentIdentity.getTrustLevel().toVerifiedState(), currentIdentity.getDateAdded().getTime());
1384                         }
1385                     }
1386
1387                     byte[] profileKey = record.profileKey == null ? null : Base64.decode(record.profileKey);
1388                     // TODO store list of blocked numbers
1389                     boolean blocked = false;
1390                     out.write(new DeviceContact(record.number, Optional.fromNullable(record.name),
1391                             createContactAvatarAttachment(record.number), Optional.fromNullable(record.color),
1392                             Optional.fromNullable(verifiedMessage), Optional.fromNullable(profileKey), blocked, Optional.fromNullable(info != null ? info.messageExpirationTime : null)));
1393                 }
1394
1395                 if (account.getProfileKey() != null) {
1396                     // Send our own profile key as well
1397                     out.write(new DeviceContact(account.getUsername(),
1398                             Optional.<String>absent(), Optional.<SignalServiceAttachmentStream>absent(),
1399                             Optional.<String>absent(), Optional.<VerifiedMessage>absent(),
1400                             Optional.of(account.getProfileKey()),
1401                             false, Optional.<Integer>absent()));
1402                 }
1403             }
1404
1405             if (contactsFile.exists() && contactsFile.length() > 0) {
1406                 try (FileInputStream contactsFileStream = new FileInputStream(contactsFile)) {
1407                     SignalServiceAttachmentStream attachmentStream = SignalServiceAttachment.newStreamBuilder()
1408                             .withStream(contactsFileStream)
1409                             .withContentType("application/octet-stream")
1410                             .withLength(contactsFile.length())
1411                             .build();
1412
1413                     sendSyncMessage(SignalServiceSyncMessage.forContacts(new ContactsMessage(attachmentStream, true)));
1414                 }
1415             }
1416         } finally {
1417             try {
1418                 Files.delete(contactsFile.toPath());
1419             } catch (IOException e) {
1420                 System.err.println("Failed to delete contacts temp file “" + contactsFile + "”: " + e.getMessage());
1421             }
1422         }
1423     }
1424
1425     private void sendVerifiedMessage(String destination, IdentityKey identityKey, TrustLevel trustLevel) throws IOException, UntrustedIdentityException {
1426         VerifiedMessage verifiedMessage = new VerifiedMessage(destination, identityKey, trustLevel.toVerifiedState(), System.currentTimeMillis());
1427         sendSyncMessage(SignalServiceSyncMessage.forVerified(verifiedMessage));
1428     }
1429
1430     public ContactInfo getContact(String number) {
1431         return account.getContactStore().getContact(number);
1432     }
1433
1434     public GroupInfo getGroup(byte[] groupId) {
1435         return account.getGroupStore().getGroup(groupId);
1436     }
1437
1438     public Map<String, List<JsonIdentityKeyStore.Identity>> getIdentities() {
1439         return account.getSignalProtocolStore().getIdentities();
1440     }
1441
1442     public List<JsonIdentityKeyStore.Identity> getIdentities(String number) {
1443         return account.getSignalProtocolStore().getIdentities(number);
1444     }
1445
1446     /**
1447      * Trust this the identity with this fingerprint
1448      *
1449      * @param name        username of the identity
1450      * @param fingerprint Fingerprint
1451      */
1452     public boolean trustIdentityVerified(String name, byte[] fingerprint) {
1453         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(name);
1454         if (ids == null) {
1455             return false;
1456         }
1457         for (JsonIdentityKeyStore.Identity id : ids) {
1458             if (!Arrays.equals(id.getIdentityKey().serialize(), fingerprint)) {
1459                 continue;
1460             }
1461
1462             account.getSignalProtocolStore().saveIdentity(name, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1463             try {
1464                 sendVerifiedMessage(name, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1465             } catch (IOException | UntrustedIdentityException e) {
1466                 e.printStackTrace();
1467             }
1468             account.save();
1469             return true;
1470         }
1471         return false;
1472     }
1473
1474     /**
1475      * Trust this the identity with this safety number
1476      *
1477      * @param name         username of the identity
1478      * @param safetyNumber Safety number
1479      */
1480     public boolean trustIdentityVerifiedSafetyNumber(String name, String safetyNumber) {
1481         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(name);
1482         if (ids == null) {
1483             return false;
1484         }
1485         for (JsonIdentityKeyStore.Identity id : ids) {
1486             if (!safetyNumber.equals(computeSafetyNumber(name, id.getIdentityKey()))) {
1487                 continue;
1488             }
1489
1490             account.getSignalProtocolStore().saveIdentity(name, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1491             try {
1492                 sendVerifiedMessage(name, id.getIdentityKey(), TrustLevel.TRUSTED_VERIFIED);
1493             } catch (IOException | UntrustedIdentityException e) {
1494                 e.printStackTrace();
1495             }
1496             account.save();
1497             return true;
1498         }
1499         return false;
1500     }
1501
1502     /**
1503      * Trust all keys of this identity without verification
1504      *
1505      * @param name username of the identity
1506      */
1507     public boolean trustIdentityAllKeys(String name) {
1508         List<JsonIdentityKeyStore.Identity> ids = account.getSignalProtocolStore().getIdentities(name);
1509         if (ids == null) {
1510             return false;
1511         }
1512         for (JsonIdentityKeyStore.Identity id : ids) {
1513             if (id.getTrustLevel() == TrustLevel.UNTRUSTED) {
1514                 account.getSignalProtocolStore().saveIdentity(name, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
1515                 try {
1516                     sendVerifiedMessage(name, id.getIdentityKey(), TrustLevel.TRUSTED_UNVERIFIED);
1517                 } catch (IOException | UntrustedIdentityException e) {
1518                     e.printStackTrace();
1519                 }
1520             }
1521         }
1522         account.save();
1523         return true;
1524     }
1525
1526     public String computeSafetyNumber(String theirUsername, IdentityKey theirIdentityKey) {
1527         return Utils.computeSafetyNumber(username, getIdentity(), theirUsername, theirIdentityKey);
1528     }
1529
1530     public interface ReceiveMessageHandler {
1531
1532         void handleMessage(SignalServiceEnvelope envelope, SignalServiceContent decryptedContent, Throwable e);
1533     }
1534 }