X509DefaultEntryConverter.cs :  » PDF » iTextSharp » Org » BouncyCastle » Asn1 » X509 » C# / CSharp Open Source

using System;
using System.IO;

namespace Org.BouncyCastle.Asn1.X509{
    /**
     * The default converter for X509 DN entries when going from their
     * string value to ASN.1 strings.
     */
    public class X509DefaultEntryConverter
        : X509NameEntryConverter
    {
        /**
         * Apply default conversion for the given value depending on the oid
         * and the character range of the value.
         *
         * @param oid the object identifier for the DN entry
         * @param value the value associated with it
         * @return the ASN.1 equivalent for the string value.
         */
        public override Asn1Object GetConvertedValue(
            DerObjectIdentifier  oid,
            string        value)
        {
            if (value.Length != 0 && value[0] == '#')
            {
        try
        {
          return ConvertHexEncoded(value, 1);
        }
        catch (IOException)
        {
          throw new Exception("can't recode value for oid " + oid.Id);
        }
      }

      if (value.Length != 0 && value[0] == '\\')
      {
        value = value.Substring(1);
      }

      if (oid.Equals(X509Name.EmailAddress) || oid.Equals(X509Name.DC))
            {
                return new DerIA5String(value);
            }

      if (oid.Equals(X509Name.DateOfBirth)) // accept time string as well as # (for compatibility)
      {
        return new DerGeneralizedTime(value);
      }

      if (oid.Equals(X509Name.C)
        || oid.Equals(X509Name.SerialNumber)
        || oid.Equals(X509Name.DnQualifier)
        || oid.Equals(X509Name.TelephoneNumber))
      {
        return new DerPrintableString(value);
      }

      return new DerUtf8String(value);
        }
    }
}