OW_HTTPChunkedIStream.hpp

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#ifndef OW_HTTPChunkedIStream_HPP_INCLUDE_GUARD_
#define OW_HTTPChunkedIStream_HPP_INCLUDE_GUARD_
#include "OW_config.h"
#include "OW_HTTPChunkException.hpp"
#include "OW_BaseStreamBuffer.hpp"
#include "OW_String.hpp"
#include "OW_Map.hpp"
#include "OW_AutoPtr.hpp"
#include "OW_CIMProtocolIStreamIFC.hpp"
#include "OW_HttpCommonFwd.hpp"

namespace OW_NAMESPACE
{

class OW_HTTP_API HTTPChunkedIStreamBuffer : public BaseStreamBuffer
{
   public:
      HTTPChunkedIStreamBuffer(std::istream& istr,
            HTTPChunkedIStream* chunkedIstr);
      void resetInput();
      ~HTTPChunkedIStreamBuffer();
   private:
      std::istream& m_istr;
      unsigned int m_inLen;
      unsigned int m_inPos;
      bool m_isEOF;
      virtual int buffer_from_device(char* c, int n);
      HTTPChunkedIStream* m_pChunker;
      // don't allow copying.
      HTTPChunkedIStreamBuffer(const HTTPChunkedIStreamBuffer&);
      HTTPChunkedIStreamBuffer& operator=(const HTTPChunkedIStreamBuffer&);
};
class OW_HTTP_API HTTPChunkedIStreamBase
{
public:
   HTTPChunkedIStreamBase(std::istream& istr,
      HTTPChunkedIStream* chunkedIStr) : m_strbuf(istr, chunkedIStr) {}
   HTTPChunkedIStreamBuffer m_strbuf;
};
class OW_HTTP_API HTTPChunkedIStream : private HTTPChunkedIStreamBase,
   public CIMProtocolIStreamIFC
{
   public:
      HTTPChunkedIStream(std::istream& istr);
      ~HTTPChunkedIStream();
      std::istream& getInputStreamOrig() { return m_istr; }
      Map<String, String> getTrailers() const { return m_trailerMap; }
      void resetInput();
      // TODO: Move all this knowledge about CIM and specific trailers into HTTPClient
      virtual void checkForError() const;
      virtual String getTrailer(const String& key) const;
   private:
      std::istream& m_istr;
      // incoming trailer info

#ifdef OW_WIN32
#pragma warning (push)
#pragma warning (disable: 4251)
#endif

      Map<String, String> m_trailerMap;

#ifdef OW_WIN32
#pragma warning (pop)
#endif

      void buildTrailerMap();
      // don't allow copying
      HTTPChunkedIStream(const HTTPChunkedIStream&);
      HTTPChunkedIStream& operator=(const HTTPChunkedIStream&);
      friend class HTTPChunkedIStreamBuffer;
};

} // end namespace OW_NAMESPACE

#endif

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