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//
// VMime library (http://www.vmime.org)
// Copyright (C) 2002 Vincent Richard <vincent@vmime.org>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 3 of
// the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// Linking this library statically or dynamically with other modules is making
// a combined work based on this library. Thus, the terms and conditions of
// the GNU General Public License cover the whole combination.
//
#ifndef VMIME_STREAMCONTENTHANDLER_HPP_INCLUDED
#define VMIME_STREAMCONTENTHANDLER_HPP_INCLUDED
#include "vmime/contentHandler.hpp"
namespace vmime {
/** A content handler which obtains its data from a stream.
*/
class VMIME_EXPORT streamContentHandler : public contentHandler {
public:
/** Creates a new empty content handler. No data can be extracted until
* an input stream is set using setData() function.
*
* @return a reference to a new content handler
*/
streamContentHandler();
/** Creates a new content handler using an input stream.
*
* @param is input stream from which data will be obtained
* @param length expected stream length. May be zero, but it is highly
* recommended to set this parameter to take part of some optimizations
* and features (eg. SMTP CHUNKING/SIZE extension).
* @param enc set to anything other than NO_ENCODING if the data obtained
* from the stream is already encoded with the specified encoding
*
* @return a reference to a new content handler
*/
streamContentHandler(
const shared_ptr <utility::inputStream>& is,
const size_t length,
const vmime::encoding& enc = NO_ENCODING
);
~streamContentHandler();
streamContentHandler(const streamContentHandler& cts);
streamContentHandler& operator=(const streamContentHandler& cts);
shared_ptr <contentHandler> clone() const;
/** Sets the data managed by this content handler.
*
* @param is input stream from which data will be obtained
* @param length expected stream length. May be zero, but it is highly
* recommended to set this parameter to take part of some optimizations
* and features (eg. SMTP CHUNKING/SIZE extension).
* @param enc set to anything other than NO_ENCODING if the data obtained
* from the stream is already encoded with the specified encoding
*/
void setData(
const shared_ptr <utility::inputStream>& is,
const size_t length,
const vmime::encoding& enc = NO_ENCODING
);
void generate(
utility::outputStream& os,
const vmime::encoding& enc,
const size_t maxLineLength = lineLengthLimits::infinite
) const;
void extract(utility::outputStream& os, utility::progressListener* progress = NULL) const;
void extractRaw(utility::outputStream& os, utility::progressListener* progress = NULL) const;
size_t getLength() const;
bool isEncoded() const;
const vmime::encoding& getEncoding() const;
bool isEmpty() const;
bool isBuffered() const;
void setContentTypeHint(const mediaType& type);
const mediaType getContentTypeHint() const;
private:
mediaType m_contentType;
// Equals to NO_ENCODING if data is not encoded, otherwise this
// specifies the encoding that have been used to encode the data.
vmime::encoding m_encoding;
// Actual data
mutable shared_ptr <utility::inputStream> m_stream;
size_t m_length;
};
} // vmime
#endif // VMIME_STREAMCONTENTHANDLER_HPP_INCLUDED
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