kicad_curl_easy.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2015 Mark Roszko <[email protected]>
 * Copyright (C) 2015, 2021 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * 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, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
#ifndef KICAD_CURL_EASY_H_
#define KICAD_CURL_EASY_H_

/*
 * curl.h, and therefore kicad_curl.h must be included before wxWidgets headers because on Windows,
 * wxWidgets ends up including windows.h before winsocks2.h
 * curl and curl.h causes build warnings if included before any wxxxx.h
 *
 * So kicad_curl_easy.h does not include curl.h to avoid constraints,
 * and including kicad_curl.h could be needed in a few sources
 */

#include <functional>
#include <memory>
#include <ostream>
#include <string>

typedef void CURL;
struct curl_slist;

typedef std::function<int( size_t, size_t, size_t, size_t )> TRANSFER_CALLBACK;
struct CURL_PROGRESS;


class KICAD_CURL_EASY
{
public:
 KICAD_CURL_EASY();
 ~KICAD_CURL_EASY();

 int Perform();

 void SetHeader( const std::string& aName, const std::string& aValue );

 bool SetUserAgent( const std::string& aAgent );

 bool SetURL( const std::string& aURL );

 bool SetFollowRedirects( bool aFollow );

 const std::string GetErrorText( int aCode );

 int GetTransferTotal( uint64_t& aDownloadedBytes ) const;

 const std::string& GetBuffer() { return m_buffer; }

 std::string Escape( const std::string& aUrl );

 bool SetTransferCallback( const TRANSFER_CALLBACK& aCallback, size_t aInterval );

 bool SetOutputStream( const std::ostream* aOutput );

 CURL* GetCurl() { return m_CURL; }


private:
 template <typename T>
 int setOption( int aOption, T aArg );

 CURL* m_CURL;
 curl_slist* m_headers;
 std::string m_buffer;
 std::unique_ptr<CURL_PROGRESS> progress;
};


#endif // KICAD_CURL_EASY_H_