LibCurlResolver.h

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//    Copyright 2004, SenseGraphics AB
//
//    This file is part of H3D API.
//
//    H3D API 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 2 of the License, or
//    (at your option) any later version.
//
//    H3D API 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 H3D API; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//    A commercial license is also available. Please contact us at 
//    www.sensegraphics.com for more information.
//
//
//
#ifndef __LIBCURLRESOLVER_H__
#define __LIBCURLRESOLVER_H__

#include "H3DApi.h"

#ifdef HAVE_LIBCURL
#include <string>
#include <iostream>
#include <fstream>
#include <list>
#include <curl/curl.h>
#include "ResourceResolver.h"

using namespace std;

#ifdef _MSC_VER
#pragma comment( lib, "libcurl.lib" )
#endif

namespace H3D {

  class H3DAPI_API LibCurlResolver : public ResourceResolver {
  public:

    LibCurlResolver() {}

    virtual ~LibCurlResolver() {
      for( list< string >::iterator i = temp_files.begin();
           i != temp_files.end(); i++ ) {
        remove( (*i).c_str() );
      }
    }

    virtual string resolveURLAsTmpFile( const string &url );

  protected:
    static size_t writeToStream( void *ptr, size_t size, 
                                 size_t nmemb, void *stream) {
      ostream *os = static_cast< ostream * >( stream );
      os->write( (char *)ptr, size * nmemb );
      return size * nmemb;
    }

    list< string > temp_files;
  };
}

#endif
#endif // HAVE_LIBCURL

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