X509Extension.cs :  » PDF » iTextSharp » Org » BouncyCastle » Asn1 » X509 » C# / CSharp Open Source

using System;

namespace Org.BouncyCastle.Asn1.X509{
    /**
     * an object for the elements in the X.509 V3 extension block.
     */
    public class X509Extension
    {
        internal bool        critical;
        internal Asn1OctetString  value;

    public X509Extension(
            DerBoolean    critical,
            Asn1OctetString  value)
        {
            if (critical == null)
            {
                throw new ArgumentNullException("critical");
            }

      this.critical = critical.IsTrue;
            this.value = value;
        }

    public X509Extension(
            bool      critical,
            Asn1OctetString  value)
        {
            this.critical = critical;
            this.value = value;
        }

    public bool IsCritical { get { return critical; } }

    public Asn1OctetString Value { get { return value; } }

    public override int GetHashCode()
        {
      int vh = this.Value.GetHashCode();

      return IsCritical ? vh : ~vh;
        }

    public override bool Equals(
            object obj)
        {
            X509Extension other = obj as X509Extension;
            if (other == null)
            {
                return false;
            }

      return Value.Equals(other.Value) && IsCritical == other.IsCritical;
        }

    /// <sumary>Convert the value of the passed in extension to an object.</sumary>
    /// <param name="ext">The extension to parse.</param>
    /// <returns>The object the value string contains.</returns>
    /// <exception cref="ArgumentException">If conversion is not possible.</exception>
    public static Asn1Object ConvertValueToObject(
      X509Extension ext)
    {
      try
      {
        return Asn1Object.FromByteArray(ext.Value.GetOctets());
      }
      catch (Exception e)
      {
        throw new ArgumentException("can't convert extension", e);
      }
    }
  }
}