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using System;
using System.IO;
using Org.BouncyCastle.Asn1.Pkcs;
using Org.BouncyCastle.Utilities;
using Org.BouncyCastle.Utilities.IO;
namespace Org.BouncyCastle.Cms
{
public class CmsTypedStream
{
private const int BufferSize = 32 * 1024;
private readonly string _oid;
private readonly Stream _in;
public CmsTypedStream(
Stream inStream)
: this(PkcsObjectIdentifiers.Data.Id, inStream, BufferSize)
{
}
public CmsTypedStream(
string oid,
Stream inStream)
: this(oid, inStream, BufferSize)
{
}
public CmsTypedStream(
string oid,
Stream inStream,
int bufSize)
{
_oid = oid;
#if NETCF_1_0 || NETCF_2_0 || SILVERLIGHT || PORTABLE
_in = new FullReaderStream(inStream);
#else
_in = new FullReaderStream(new BufferedStream(inStream, bufSize));
#endif
}
public string ContentType
{
get { return _oid; }
}
public Stream ContentStream
{
get { return _in; }
}
public void Drain()
{
Streams.Drain(_in);
Platform.Dispose(_in);
}
private class FullReaderStream : FilterStream
{
internal FullReaderStream(Stream input)
: base(input)
{
}
public override int Read(byte[] buf, int off, int len)
{
return Streams.ReadFully(base.s, buf, off, len);
}
}
}
}
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