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cos-cpp-sdk/third_party/include/Poco/Net/MultipartWriter.h

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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