using Org.BouncyCastle.Asn1.X509; using System; namespace Org.BouncyCastle.Asn1.Cmp { public class CrlSource : Asn1Encodable, IAsn1Choice { private readonly DistributionPointName m_dpn; private readonly GeneralNames m_issuer; public virtual DistributionPointName Dpn => m_dpn; public virtual GeneralNames Issuer => m_issuer; public static CrlSource GetInstance(object obj) { return Asn1Utilities.GetInstanceChoice(obj, GetOptional); } public static CrlSource GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit) { return Asn1Utilities.GetInstanceChoice(taggedObject, declaredExplicit, GetInstance); } public static CrlSource GetOptional(Asn1Encodable element) { if (element == null) throw new ArgumentNullException("element"); CrlSource crlSource = element as CrlSource; if (crlSource != null) return crlSource; Asn1TaggedObject optional = Asn1TaggedObject.GetOptional(element); if (optional != null) { if (optional.HasContextTag(0)) return new CrlSource(DistributionPointName.GetTagged(optional, true), null); if (optional.HasContextTag(1)) return new CrlSource(null, GeneralNames.GetTagged(optional, true)); } return null; } public static CrlSource GetTagged(Asn1TaggedObject taggedObject, bool declaredExplicit) { return Asn1Utilities.GetTaggedChoice(taggedObject, declaredExplicit, GetInstance); } public CrlSource(DistributionPointName dpn, GeneralNames issuer) { if (dpn == null == (issuer == null)) throw new ArgumentException("either dpn or issuer must be set"); m_dpn = dpn; m_issuer = issuer; } public override Asn1Object ToAsn1Object() { if (m_dpn != null) return new DerTaggedObject(true, 0, m_dpn); if (m_issuer != null) return new DerTaggedObject(true, 1, m_issuer); throw new InvalidOperationException(); } } }