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

   1 package org.asamk.signal.manager.helper;
   2
   3 import org.asamk.signal.manager.AvatarStore;
   4 import org.asamk.signal.manager.SignalDependencies;
   5 import org.asamk.signal.manager.config.ServiceConfig;
   6 import org.asamk.signal.manager.storage.SignalAccount;
   7 import org.asamk.signal.manager.storage.recipients.Profile;
   8 import org.asamk.signal.manager.storage.recipients.RecipientId;
   9 import org.asamk.signal.manager.util.IOUtils;
  10 import org.asamk.signal.manager.util.ProfileUtils;
  11 import org.asamk.signal.manager.util.Utils;
  12 import org.signal.zkgroup.profiles.ProfileKey;
  13 import org.signal.zkgroup.profiles.ProfileKeyCredential;
  14 import org.slf4j.Logger;
  15 import org.slf4j.LoggerFactory;
  16 import org.whispersystems.libsignal.IdentityKey;
  17 import org.whispersystems.libsignal.InvalidKeyException;
  18 import org.whispersystems.libsignal.util.guava.Optional;
  19 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccess;
  20 import org.whispersystems.signalservice.api.profiles.ProfileAndCredential;
  21 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
  22 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  23 import org.whispersystems.signalservice.api.push.exceptions.NotFoundException;
  24 import org.whispersystems.signalservice.api.push.exceptions.PushNetworkException;
  25 import org.whispersystems.signalservice.api.services.ProfileService;
  26 import org.whispersystems.signalservice.internal.ServiceResponse;
  27
  28 import java.io.File;
  29 import java.io.IOException;
  30 import java.io.OutputStream;
  31 import java.nio.file.Files;
  32 import java.util.Base64;
  33 import java.util.Date;
  34 import java.util.HashSet;
  35 import java.util.List;
  36 import java.util.Objects;
  37 import java.util.Set;
  38
  39 import io.reactivex.rxjava3.core.Single;
  40
  41 public final class ProfileHelper {
  42
  43     private final static Logger logger = LoggerFactory.getLogger(ProfileHelper.class);
  44
  45     private final SignalAccount account;
  46     private final SignalDependencies dependencies;
  47     private final AvatarStore avatarStore;
  48     private final UnidentifiedAccessProvider unidentifiedAccessProvider;
  49     private final SignalServiceAddressResolver addressResolver;
  50
  51     public ProfileHelper(
  52             final SignalAccount account,
  53             final SignalDependencies dependencies,
  54             final AvatarStore avatarStore,
  55             final UnidentifiedAccessProvider unidentifiedAccessProvider,
  56             final SignalServiceAddressResolver addressResolver
  57     ) {
  58         this.account = account;
  59         this.dependencies = dependencies;
  60         this.avatarStore = avatarStore;
  61         this.unidentifiedAccessProvider = unidentifiedAccessProvider;
  62         this.addressResolver = addressResolver;
  63     }
  64
  65     public Profile getRecipientProfile(RecipientId recipientId) {
  66         return getRecipientProfile(recipientId, false);
  67     }
  68
  69     public void refreshRecipientProfile(RecipientId recipientId) {
  70         getRecipientProfile(recipientId, true);
  71     }
  72
  73     public ProfileKeyCredential getRecipientProfileKeyCredential(RecipientId recipientId) {
  74         var profileKeyCredential = account.getProfileStore().getProfileKeyCredential(recipientId);
  75         if (profileKeyCredential != null) {
  76             return profileKeyCredential;
  77         }
  78
  79         ProfileAndCredential profileAndCredential;
  80         try {
  81             profileAndCredential = retrieveProfileAndCredential(recipientId,
  82                     SignalServiceProfile.RequestType.PROFILE_AND_CREDENTIAL);
  83         } catch (IOException e) {
  84             logger.warn("Failed to retrieve profile key credential, ignoring: {}", e.getMessage());
  85             return null;
  86         }
  87
  88         profileKeyCredential = profileAndCredential.getProfileKeyCredential().orNull();
  89         account.getProfileStore().storeProfileKeyCredential(recipientId, profileKeyCredential);
  90
  91         var profileKey = account.getProfileStore().getProfileKey(recipientId);
  92         if (profileKey != null) {
  93             final var profile = decryptProfileAndDownloadAvatar(recipientId,
  94                     profileKey,
  95                     profileAndCredential.getProfile());
  96             account.getProfileStore().storeProfile(recipientId, profile);
  97         }
  98
  99         return profileKeyCredential;
 100     }
 101
 102     /**
 103      * @param givenName  if null, the previous givenName will be kept
 104      * @param familyName if null, the previous familyName will be kept
 105      * @param about      if null, the previous about text will be kept
 106      * @param aboutEmoji if null, the previous about emoji will be kept
 107      * @param avatar     if avatar is null the image from the local avatar store is used (if present),
 108      */
 109     public void setProfile(
 110             String givenName, final String familyName, String about, String aboutEmoji, Optional<File> avatar
 111     ) throws IOException {
 112         setProfile(true, givenName, familyName, about, aboutEmoji, avatar);
 113     }
 114
 115     public void setProfile(
 116             boolean uploadProfile,
 117             String givenName,
 118             final String familyName,
 119             String about,
 120             String aboutEmoji,
 121             Optional<File> avatar
 122     ) throws IOException {
 123         var profile = getRecipientProfile(account.getSelfRecipientId());
 124         var builder = profile == null ? Profile.newBuilder() : Profile.newBuilder(profile);
 125         if (givenName != null) {
 126             builder.withGivenName(givenName);
 127         }
 128         if (familyName != null) {
 129             builder.withFamilyName(familyName);
 130         }
 131         if (about != null) {
 132             builder.withAbout(about);
 133         }
 134         if (aboutEmoji != null) {
 135             builder.withAboutEmoji(aboutEmoji);
 136         }
 137         var newProfile = builder.build();
 138
 139         if (uploadProfile) {
 140             try (final var streamDetails = avatar == null
 141                     ? avatarStore.retrieveProfileAvatar(account.getSelfAddress())
 142                     : avatar.isPresent() ? Utils.createStreamDetailsFromFile(avatar.get()) : null) {
 143                 final var avatarPath = dependencies.getAccountManager()
 144                         .setVersionedProfile(account.getUuid(),
 145                                 account.getProfileKey(),
 146                                 newProfile.getInternalServiceName(),
 147                                 newProfile.getAbout() == null ? "" : newProfile.getAbout(),
 148                                 newProfile.getAboutEmoji() == null ? "" : newProfile.getAboutEmoji(),
 149                                 Optional.absent(),
 150                                 streamDetails,
 151                                 List.of(/* TODO */));
 152                 builder.withAvatarUrlPath(avatarPath.orNull());
 153                 newProfile = builder.build();
 154             }
 155         }
 156
 157         if (avatar != null) {
 158             if (avatar.isPresent()) {
 159                 avatarStore.storeProfileAvatar(account.getSelfAddress(),
 160                         outputStream -> IOUtils.copyFileToStream(avatar.get(), outputStream));
 161             } else {
 162                 avatarStore.deleteProfileAvatar(account.getSelfAddress());
 163             }
 164         }
 165         account.getProfileStore().storeProfile(account.getSelfRecipientId(), newProfile);
 166     }
 167
 168     private final Set<RecipientId> pendingProfileRequest = new HashSet<>();
 169
 170     private Profile getRecipientProfile(RecipientId recipientId, boolean force) {
 171         var profile = account.getProfileStore().getProfile(recipientId);
 172
 173         var now = System.currentTimeMillis();
 174         // Profiles are cached for 24h before retrieving them again, unless forced
 175         if (!force && profile != null && now - profile.getLastUpdateTimestamp() < 24 * 60 * 60 * 1000) {
 176             return profile;
 177         }
 178
 179         synchronized (pendingProfileRequest) {
 180             if (pendingProfileRequest.contains(recipientId)) {
 181                 return profile;
 182             }
 183             pendingProfileRequest.add(recipientId);
 184         }
 185         final SignalServiceProfile encryptedProfile;
 186         try {
 187             encryptedProfile = retrieveEncryptedProfile(recipientId);
 188         } finally {
 189             synchronized (pendingProfileRequest) {
 190                 pendingProfileRequest.remove(recipientId);
 191             }
 192         }
 193         if (encryptedProfile == null) {
 194             return null;
 195         }
 196
 197         profile = decryptProfileIfKeyKnown(recipientId, encryptedProfile);
 198         account.getProfileStore().storeProfile(recipientId, profile);
 199
 200         return profile;
 201     }
 202
 203     private Profile decryptProfileIfKeyKnown(
 204             final RecipientId recipientId, final SignalServiceProfile encryptedProfile
 205     ) {
 206         var profileKey = account.getProfileStore().getProfileKey(recipientId);
 207         if (profileKey == null) {
 208             return new Profile(System.currentTimeMillis(),
 209                     null,
 210                     null,
 211                     null,
 212                     null,
 213                     null,
 214                     ProfileUtils.getUnidentifiedAccessMode(encryptedProfile, null),
 215                     ProfileUtils.getCapabilities(encryptedProfile));
 216         }
 217
 218         return decryptProfileAndDownloadAvatar(recipientId, profileKey, encryptedProfile);
 219     }
 220
 221     private SignalServiceProfile retrieveEncryptedProfile(RecipientId recipientId) {
 222         try {
 223             return retrieveProfileAndCredential(recipientId, SignalServiceProfile.RequestType.PROFILE).getProfile();
 224         } catch (IOException e) {
 225             logger.warn("Failed to retrieve profile, ignoring: {}", e.getMessage());
 226             return null;
 227         }
 228     }
 229
 230     private SignalServiceProfile retrieveProfileSync(String username) throws IOException {
 231         return dependencies.getMessageReceiver().retrieveProfileByUsername(username, Optional.absent());
 232     }
 233
 234     private ProfileAndCredential retrieveProfileAndCredential(
 235             final RecipientId recipientId, final SignalServiceProfile.RequestType requestType
 236     ) throws IOException {
 237         final var profileAndCredential = retrieveProfileSync(recipientId, requestType);
 238         final var profile = profileAndCredential.getProfile();
 239
 240         try {
 241             var newIdentity = account.getIdentityKeyStore()
 242                     .saveIdentity(recipientId,
 243                             new IdentityKey(Base64.getDecoder().decode(profile.getIdentityKey())),
 244                             new Date());
 245
 246             if (newIdentity) {
 247                 account.getSessionStore().archiveSessions(recipientId);
 248             }
 249         } catch (InvalidKeyException ignored) {
 250             logger.warn("Got invalid identity key in profile for {}",
 251                     addressResolver.resolveSignalServiceAddress(recipientId).getIdentifier());
 252         }
 253         return profileAndCredential;
 254     }
 255
 256     private Profile decryptProfileAndDownloadAvatar(
 257             final RecipientId recipientId, final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
 258     ) {
 259         final var avatarPath = encryptedProfile.getAvatar();
 260         downloadProfileAvatar(recipientId, avatarPath, profileKey);
 261
 262         return ProfileUtils.decryptProfile(profileKey, encryptedProfile);
 263     }
 264
 265     public void downloadProfileAvatar(
 266             final RecipientId recipientId, final String avatarPath, final ProfileKey profileKey
 267     ) {
 268         var profile = account.getProfileStore().getProfile(recipientId);
 269         if (profile == null || !Objects.equals(avatarPath, profile.getAvatarUrlPath())) {
 270             downloadProfileAvatar(addressResolver.resolveSignalServiceAddress(recipientId), avatarPath, profileKey);
 271             var builder = profile == null ? Profile.newBuilder() : Profile.newBuilder(profile);
 272             account.getProfileStore().storeProfile(recipientId, builder.withAvatarUrlPath(avatarPath).build());
 273         }
 274     }
 275
 276     private ProfileAndCredential retrieveProfileSync(
 277             RecipientId recipientId, SignalServiceProfile.RequestType requestType
 278     ) throws IOException {
 279         try {
 280             return retrieveProfile(recipientId, requestType).blockingGet();
 281         } catch (RuntimeException e) {
 282             if (e.getCause() instanceof PushNetworkException) {
 283                 throw (PushNetworkException) e.getCause();
 284             } else if (e.getCause() instanceof NotFoundException) {
 285                 throw (NotFoundException) e.getCause();
 286             } else {
 287                 throw new IOException(e);
 288             }
 289         }
 290     }
 291
 292     private Single<ProfileAndCredential> retrieveProfile(
 293             RecipientId recipientId, SignalServiceProfile.RequestType requestType
 294     ) {
 295         var unidentifiedAccess = getUnidentifiedAccess(recipientId);
 296         var profileKey = Optional.fromNullable(account.getProfileStore().getProfileKey(recipientId));
 297
 298         final var address = addressResolver.resolveSignalServiceAddress(recipientId);
 299         return retrieveProfile(address, profileKey, unidentifiedAccess, requestType);
 300     }
 301
 302     private Single<ProfileAndCredential> retrieveProfile(
 303             SignalServiceAddress address,
 304             Optional<ProfileKey> profileKey,
 305             Optional<UnidentifiedAccess> unidentifiedAccess,
 306             SignalServiceProfile.RequestType requestType
 307     ) {
 308         var profileService = dependencies.getProfileService();
 309
 310         Single<ServiceResponse<ProfileAndCredential>> responseSingle;
 311         try {
 312             responseSingle = profileService.getProfile(address, profileKey, unidentifiedAccess, requestType);
 313         } catch (NoClassDefFoundError e) {
 314             // Native zkgroup lib not available for ProfileKey
 315             responseSingle = profileService.getProfile(address, Optional.absent(), unidentifiedAccess, requestType);
 316         }
 317
 318         return responseSingle.map(pair -> {
 319             var processor = new ProfileService.ProfileResponseProcessor(pair);
 320             if (processor.hasResult()) {
 321                 return processor.getResult();
 322             } else if (processor.notFound()) {
 323                 throw new NotFoundException("Profile not found");
 324             } else {
 325                 throw pair.getExecutionError()
 326                         .or(pair.getApplicationError())
 327                         .or(new IOException("Unknown error while retrieving profile"));
 328             }
 329         });
 330     }
 331
 332     private void downloadProfileAvatar(
 333             SignalServiceAddress address, String avatarPath, ProfileKey profileKey
 334     ) {
 335         if (avatarPath == null) {
 336             try {
 337                 avatarStore.deleteProfileAvatar(address);
 338             } catch (IOException e) {
 339                 logger.warn("Failed to delete local profile avatar, ignoring: {}", e.getMessage());
 340             }
 341             return;
 342         }
 343
 344         try {
 345             avatarStore.storeProfileAvatar(address,
 346                     outputStream -> retrieveProfileAvatar(avatarPath, profileKey, outputStream));
 347         } catch (Throwable e) {
 348             if (e instanceof AssertionError && e.getCause() instanceof InterruptedException) {
 349                 Thread.currentThread().interrupt();
 350             }
 351             logger.warn("Failed to download profile avatar, ignoring: {}", e.getMessage());
 352         }
 353     }
 354
 355     private void retrieveProfileAvatar(
 356             String avatarPath, ProfileKey profileKey, OutputStream outputStream
 357     ) throws IOException {
 358         var tmpFile = IOUtils.createTempFile();
 359         try (var input = dependencies.getMessageReceiver()
 360                 .retrieveProfileAvatar(avatarPath,
 361                         tmpFile,
 362                         profileKey,
 363                         ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE)) {
 364             // Use larger buffer size to prevent AssertionError: Need: 12272 but only have: 8192 ...
 365             IOUtils.copyStream(input, outputStream, (int) ServiceConfig.AVATAR_DOWNLOAD_FAILSAFE_MAX_SIZE);
 366         } finally {
 367             try {
 368                 Files.delete(tmpFile.toPath());
 369             } catch (IOException e) {
 370                 logger.warn("Failed to delete received profile avatar temp file “{}”, ignoring: {}",
 371                         tmpFile,
 372                         e.getMessage());
 373             }
 374         }
 375     }
 376
 377     private Optional<UnidentifiedAccess> getUnidentifiedAccess(RecipientId recipientId) {
 378         var unidentifiedAccess = unidentifiedAccessProvider.getAccessFor(recipientId);
 379
 380         if (unidentifiedAccess.isPresent()) {
 381             return unidentifiedAccess.get().getTargetUnidentifiedAccess();
 382         }
 383
 384         return Optional.absent();
 385     }
 386 }