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using System;
namespace Org.BouncyCastle.Asn1
{
internal class DLTaggedObject
: DerTaggedObject
{
private int m_contentsLengthDL = -1;
internal DLTaggedObject(int tagNo, Asn1Encodable obj)
: base(tagNo, obj)
{
}
internal DLTaggedObject(int tagClass, int tagNo, Asn1Encodable obj)
: base(tagClass, tagNo, obj)
{
}
internal DLTaggedObject(bool isExplicit, int tagNo, Asn1Encodable obj)
: base(isExplicit, tagNo, obj)
{
}
internal DLTaggedObject(bool isExplicit, int tagClass, int tagNo, Asn1Encodable obj)
: base(isExplicit, tagClass, tagNo, obj)
{
}
internal DLTaggedObject(int explicitness, int tagClass, int tagNo, Asn1Encodable obj)
: base(explicitness, tagClass, tagNo, obj)
{
}
internal override string Asn1Encoding
{
// TODO[asn1] Use DL encoding when supported
get { return Ber; }
}
internal override bool EncodeConstructed(int encoding)
{
if (Asn1OutputStream.EncodingDer == encoding)
return base.EncodeConstructed(encoding);
// TODO[asn1] Use DL encoding when supported
//encoding = Asn1OutputStream.EncodingDL;
return IsExplicit() || GetBaseObject().ToAsn1Object().EncodeConstructed(encoding);
}
internal override int EncodedLength(int encoding, bool withID)
{
if (Asn1OutputStream.EncodingDer == encoding)
return base.EncodedLength(encoding, withID);
Asn1Object baseObject = GetBaseObject().ToAsn1Object();
bool withBaseID = IsExplicit();
int length = GetContentsLengthDL(baseObject, withBaseID);
if (withBaseID)
{
length += Asn1OutputStream.GetLengthOfDL(length);
}
length += withID ? Asn1OutputStream.GetLengthOfIdentifier(TagNo) : 0;
return length;
}
internal override void Encode(Asn1OutputStream asn1Out, bool withID)
{
if (Asn1OutputStream.EncodingDer == asn1Out.Encoding)
{
base.Encode(asn1Out, withID);
return;
}
// TODO[asn1] Use DL encoding when supported
//asn1Out = asn1Out.GetDLSubStream();
Asn1Object baseObject = GetBaseObject().ToAsn1Object();
bool withBaseID = IsExplicit();
if (withID)
{
int flags = TagClass;
if (withBaseID || baseObject.EncodeConstructed(asn1Out.Encoding))
{
flags |= Asn1Tags.Constructed;
}
asn1Out.WriteIdentifier(true, flags, TagNo);
}
if (withBaseID)
{
asn1Out.WriteDL(GetContentsLengthDL(baseObject, true));
}
baseObject.Encode(asn1Out, withBaseID);
}
internal override Asn1Sequence RebuildConstructed(Asn1Object asn1Object)
{
return new DLSequence(asn1Object);
}
internal override Asn1TaggedObject ReplaceTag(int tagClass, int tagNo)
{
return new DLTaggedObject(explicitness, tagClass, tagNo, obj);
}
private int GetContentsLengthDL(Asn1Object baseObject, bool withBaseID)
{
if (m_contentsLengthDL < 0)
{
// TODO[asn1] Use DL encoding when supported
m_contentsLengthDL = baseObject.EncodedLength(Asn1OutputStream.EncodingBer, withBaseID);
}
return m_contentsLengthDL;
}
}
}
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