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//
// MultipartWriter.h
//
// Library: Net
// Package: Messages
// Module: MultipartWriter
//
// Definition of the MultipartWriter class.
//
// Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Net_MultipartWriter_INCLUDED
#define Net_MultipartWriter_INCLUDED
#include "Poco/Net/Net.h"
#include <ostream>
namespace Poco {
namespace Net {
class MessageHeader;
class Net_API MultipartWriter
/// This class is used to write MIME multipart
/// messages to an output stream.
///
/// The format of multipart messages is described
/// in section 5.1 of RFC 2046.
///
/// To create a multipart message, first create
/// a MultipartWriter object.
/// Then, for each part, call nextPart() and
/// write the content to the output stream.
/// Repeat for all parts.
/// After the last part has been written,
/// call close() to finish the multipart message.
{
public:
explicit MultipartWriter(std::ostream& ostr);
/// Creates the MultipartWriter, using the
/// given output stream.
///
/// Creates a random boundary string.
MultipartWriter(std::ostream& ostr, const std::string& boundary);
/// Creates the MultipartWriter, using the
/// given output stream and boundary string.
~MultipartWriter();
/// Destroys the MultipartWriter.
void nextPart(const MessageHeader& header);
/// Opens a new message part and writes
/// the message boundary string, followed
/// by the message header to the stream.
void close();
/// Closes the multipart message and writes
/// the terminating boundary string.
///
/// Does not close the underlying stream.
std::ostream& stream();
/// Returns the writer's stream.
const std::string& boundary() const;
/// Returns the multipart boundary used by this writer.
static std::string createBoundary();
/// Creates a random boundary string.
///
/// The string always has the form
/// MIME_boundary_XXXXXXXXXXXX, where
/// XXXXXXXXXXXX is a random hexadecimal
/// number.
private:
MultipartWriter();
MultipartWriter(const MultipartWriter&);
MultipartWriter& operator = (const MultipartWriter&);
std::ostream& _ostr;
std::string _boundary;
bool _firstPart;
};
//
// inlines
//
inline std::ostream& MultipartWriter::stream()
{
return _ostr;
}
} } // namespace Poco::Net
#endif // Net_MultipartWriter_INCLUDED
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