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

   1 package org.asamk.signal.manager.util;
   2
   3 import org.asamk.signal.manager.storage.profiles.SignalProfile;
   4 import org.signal.zkgroup.profiles.ProfileKey;
   5 import org.whispersystems.signalservice.api.crypto.InvalidCiphertextException;
   6 import org.whispersystems.signalservice.api.crypto.ProfileCipher;
   7 import org.whispersystems.signalservice.api.profiles.SignalServiceProfile;
   8
   9 import java.util.Base64;
  10
  11 public class ProfileUtils {
  12
  13     public static SignalProfile decryptProfile(
  14             final ProfileKey profileKey, final SignalServiceProfile encryptedProfile
  15     ) {
  16         ProfileCipher profileCipher = new ProfileCipher(profileKey);
  17         try {
  18             String name;
  19             try {
  20                 name = encryptedProfile.getName() == null
  21                         ? null
  22                         : new String(profileCipher.decryptName(Base64.getDecoder().decode(encryptedProfile.getName())));
  23             } catch (IllegalArgumentException e) {
  24                 name = null;
  25             }
  26             String unidentifiedAccess;
  27             try {
  28                 unidentifiedAccess = encryptedProfile.getUnidentifiedAccess() == null
  29                         || !profileCipher.verifyUnidentifiedAccess(Base64.getDecoder()
  30                         .decode(encryptedProfile.getUnidentifiedAccess()))
  31                         ? null
  32                         : encryptedProfile.getUnidentifiedAccess();
  33             } catch (IllegalArgumentException e) {
  34                 unidentifiedAccess = null;
  35             }
  36             return new SignalProfile(encryptedProfile.getIdentityKey(),
  37                     name,
  38                     unidentifiedAccess,
  39                     encryptedProfile.isUnrestrictedUnidentifiedAccess(),
  40                     encryptedProfile.getCapabilities());
  41         } catch (InvalidCiphertextException e) {
  42             return null;
  43         }
  44     }
  45 }