35 lines
1.0 KiB
C#
35 lines
1.0 KiB
C#
using System.IO;
|
|
using Org.BouncyCastle.Asn1;
|
|
using Org.BouncyCastle.Asn1.Cms;
|
|
using Org.BouncyCastle.Utilities.Zlib;
|
|
|
|
namespace Org.BouncyCastle.Cms;
|
|
|
|
public class CmsCompressedDataParser : CmsContentInfoParser
|
|
{
|
|
public CmsCompressedDataParser(byte[] compressedData)
|
|
: this(new MemoryStream(compressedData, writable: false))
|
|
{
|
|
}
|
|
|
|
public CmsCompressedDataParser(Stream compressedData)
|
|
: base(compressedData)
|
|
{
|
|
}
|
|
|
|
public CmsTypedStream GetContent()
|
|
{
|
|
try
|
|
{
|
|
CompressedDataParser compressedDataParser = new CompressedDataParser((Asn1SequenceParser)contentInfo.GetContent(16));
|
|
ContentInfoParser encapContentInfo = compressedDataParser.GetEncapContentInfo();
|
|
Asn1OctetStringParser asn1OctetStringParser = (Asn1OctetStringParser)encapContentInfo.GetContent(4);
|
|
return new CmsTypedStream(encapContentInfo.ContentType.ToString(), new ZInputStream(asn1OctetStringParser.GetOctetStream()));
|
|
}
|
|
catch (IOException e)
|
|
{
|
|
throw new CmsException("IOException reading compressed content.", e);
|
|
}
|
|
}
|
|
}
|