TBSRequest.cs :  » PDF » iTextSharp » Org » BouncyCastle » Asn1 » Ocsp » C# / CSharp Open Source

using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.X509;

using System;

namespace Org.BouncyCastle.Asn1.Ocsp{
    public class TbsRequest
        : Asn1Encodable
    {
    private static readonly DerInteger V1 = new DerInteger(0);

    private readonly DerInteger      version;
        private readonly GeneralName     requestorName;
        private readonly Asn1Sequence    requestList;
        private readonly X509Extensions  requestExtensions;

    private bool versionSet;

    public static TbsRequest GetInstance(
      Asn1TaggedObject  obj,
      bool        explicitly)
    {
      return GetInstance(Asn1Sequence.GetInstance(obj, explicitly));
    }

    public static TbsRequest GetInstance(
      object obj)
    {
      if (obj == null || obj is TbsRequest)
      {
        return (TbsRequest)obj;
      }

      if (obj is Asn1Sequence)
      {
        return new TbsRequest((Asn1Sequence)obj);
      }

      throw new ArgumentException("unknown object in factory: " + obj.GetType().Name, "obj");
    }

    public TbsRequest(
            GeneralName     requestorName,
            Asn1Sequence    requestList,
            X509Extensions  requestExtensions)
        {
            this.version = V1;
            this.requestorName = requestorName;
            this.requestList = requestList;
            this.requestExtensions = requestExtensions;
        }

    private TbsRequest(
            Asn1Sequence seq)
        {
            int index = 0;

      Asn1Encodable enc = seq[0];
      if (enc is Asn1TaggedObject)
            {
                Asn1TaggedObject o = (Asn1TaggedObject) enc;

        if (o.TagNo == 0)
                {
          versionSet = true;
          version = DerInteger.GetInstance(o, true);
                    index++;
                }
                else
                {
                    version = V1;
                }
            }
            else
            {
                version = V1;
            }

      if (seq[index] is Asn1TaggedObject)
            {
                requestorName = GeneralName.GetInstance((Asn1TaggedObject) seq[index++], true);
            }

      requestList = (Asn1Sequence) seq[index++];

      if (seq.Count == (index + 1))
            {
                requestExtensions = X509Extensions.GetInstance((Asn1TaggedObject) seq[index], true);
            }
        }

    public DerInteger Version
    {
      get { return version; }
    }

    public GeneralName RequestorName
    {
      get { return requestorName; }
    }

    public Asn1Sequence RequestList
    {
      get { return requestList; }
    }

    public X509Extensions RequestExtensions
    {
      get { return requestExtensions; }
    }

    /**
         * Produce an object suitable for an Asn1OutputStream.
         * <pre>
         * TBSRequest      ::=     Sequence {
         *     version             [0]     EXPLICIT Version DEFAULT v1,
         *     requestorName       [1]     EXPLICIT GeneralName OPTIONAL,
         *     requestList                 Sequence OF Request,
         *     requestExtensions   [2]     EXPLICIT Extensions OPTIONAL }
         * </pre>
         */
        public override Asn1Object ToAsn1Object()
        {
            Asn1EncodableVector v = new Asn1EncodableVector();

      //
      // if default don't include - unless explicitly provided. Not strictly correct
      // but required for some requests
      //
      if (!version.Equals(V1) || versionSet)
      {
                v.Add(new DerTaggedObject(true, 0, version));
            }

      if (requestorName != null)
            {
                v.Add(new DerTaggedObject(true, 1, requestorName));
            }

      v.Add(requestList);

      if (requestExtensions != null)
            {
                v.Add(new DerTaggedObject(true, 2, requestExtensions));
            }

      return new DerSequence(v);
        }
    }
}