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using System;
namespace Org.BouncyCastle.Asn1.Cms
{
public class MetaData
: Asn1Encodable
{
public static MetaData GetInstance(object obj)
{
if (obj == null)
return null;
if (obj is MetaData metaData)
return metaData;
return new MetaData(Asn1Sequence.GetInstance(obj));
}
public static MetaData GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit)
{
return new MetaData(Asn1Sequence.GetInstance(taggedObject, declaredExplicit));
}
private DerBoolean hashProtected;
private DerUtf8String fileName;
private DerIA5String mediaType;
private Attributes otherMetaData;
public MetaData(
DerBoolean hashProtected,
DerUtf8String fileName,
DerIA5String mediaType,
Attributes otherMetaData)
{
this.hashProtected = hashProtected;
this.fileName = fileName;
this.mediaType = mediaType;
this.otherMetaData = otherMetaData;
}
private MetaData(Asn1Sequence seq)
{
this.hashProtected = DerBoolean.GetInstance(seq[0]);
int index = 1;
if (index < seq.Count && seq[index] is DerUtf8String utf8)
{
this.fileName = utf8;
++index;
}
if (index < seq.Count && seq[index] is DerIA5String ia5)
{
this.mediaType = ia5;
++index;
}
if (index < seq.Count)
{
this.otherMetaData = Attributes.GetInstance(seq[index++]);
}
}
/**
* <pre>
* MetaData ::= SEQUENCE {
* hashProtected BOOLEAN,
* fileName UTF8String OPTIONAL,
* mediaType IA5String OPTIONAL,
* otherMetaData Attributes OPTIONAL
* }
* </pre>
* @return
*/
public override Asn1Object ToAsn1Object()
{
Asn1EncodableVector v = new Asn1EncodableVector(hashProtected);
v.AddOptional(fileName, mediaType, otherMetaData);
return new DerSequence(v);
}
public virtual bool IsHashProtected
{
get { return hashProtected.IsTrue; }
}
public virtual DerUtf8String FileName
{
get { return fileName; }
}
public virtual DerIA5String MediaType
{
get { return mediaType; }
}
public virtual Attributes OtherMetaData
{
get { return otherMetaData; }
}
}
}
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