Method call

java/backup-tool/src/main/java/BackupTool.java:33–60

()

  }

  @Override
  public Integer call() throws Exception {
    SignalProtocolLoggerProvider.initializeLogging(SignalProtocolLogger.INFO);
    SignalProtocolLoggerProvider.setProvider(
        new SignalProtocolLogger() {
          public void log(int priority, String tag, String message) {
            System.err.println(priority + " " + message);
          }
        });

    byte[] hmacKey = Hex.fromStringCondensed(this.hmacKey);
    byte[] aesKey = Hex.fromStringCondensed(this.aesKey);
    var backupKey = MessageBackupKey.fromParts(hmacKey, aesKey);

    MessageBackup.ValidationResult result =
        MessageBackup.validate(
            backupKey,
            MessageBackup.Purpose.REMOTE_BACKUP,
            () -> {
              try {
                return new FileInputStream(input);
              } catch (FileNotFoundException e) {
                throw new AssertionError(e);
              }
            },
            input.length());
    return result.unknownFieldMessages.length == 0 ? 0 : 1;
  }
}