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

using System;
using System.Collections;
using System.Text;

using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Utilities;

namespace Org.BouncyCastle.Asn1.X509{
  /**
   * The AuthorityInformationAccess object.
   * <pre>
   * id-pe-authorityInfoAccess OBJECT IDENTIFIER ::= { id-pe 1 }
   *
   * AuthorityInfoAccessSyntax  ::=
   *      Sequence SIZE (1..MAX) OF AccessDescription
   * AccessDescription  ::=  Sequence {
   *       accessMethod          OBJECT IDENTIFIER,
   *       accessLocation        GeneralName  }
   *
   * id-ad OBJECT IDENTIFIER ::= { id-pkix 48 }
   * id-ad-caIssuers OBJECT IDENTIFIER ::= { id-ad 2 }
   * id-ad-ocsp OBJECT IDENTIFIER ::= { id-ad 1 }
   * </pre>
   */
  public class AuthorityInformationAccess
    : Asn1Encodable
  {
    private readonly AccessDescription[] descriptions;

    public static AuthorityInformationAccess GetInstance(
      object obj)
    {
      if (obj is AuthorityInformationAccess)
        return (AuthorityInformationAccess) obj;

      if (obj is Asn1Sequence)
        return new AuthorityInformationAccess((Asn1Sequence) obj);

      if (obj is X509Extension)
        return GetInstance(X509Extension.ConvertValueToObject((X509Extension) obj));

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

    private AuthorityInformationAccess(
      Asn1Sequence seq)
    {
      if (seq.Count < 1)
        throw new ArgumentException("sequence may not be empty");

      this.descriptions = new AccessDescription[seq.Count];

      for (int i = 0; i < seq.Count; ++i)
      {
        descriptions[i] = AccessDescription.GetInstance(seq[i]);
      }
    }

    /**
     * create an AuthorityInformationAccess with the oid and location provided.
     */
    [Obsolete("Use version taking an AccessDescription instead")]
    public AuthorityInformationAccess(
      DerObjectIdentifier  oid,
      GeneralName      location)
    {
      this.descriptions = new AccessDescription[]{ new AccessDescription(oid, location) };
    }

    public AuthorityInformationAccess(
      AccessDescription description)
    {
      this.descriptions = new AccessDescription[]{ description };
    }

    public AccessDescription[] GetAccessDescriptions()
    {
      return (AccessDescription[]) descriptions.Clone();
    }

    public override Asn1Object ToAsn1Object()
    {
      return new DerSequence(descriptions);
    }

    public override string ToString()
    {
      StringBuilder buf = new StringBuilder();
      string sep = Platform.NewLine;

      buf.Append("AuthorityInformationAccess:");
      buf.Append(sep);

      foreach (AccessDescription description in descriptions)
      {
        buf.Append("    ");
        buf.Append(description);
        buf.Append(sep);
      }

      return buf.ToString();
    }
  }
}