145 lines
3.7 KiB
C++
145 lines
3.7 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2015 Mark Roszko <mark.roszko@gmail.com>
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* Copyright (C) 2015 KiCad Developers, see CHANGELOG.TXT for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 3
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <kicad_curl/kicad_curl.h>
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#include <kicad_curl/kicad_curl_easy.h>
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#include <cstddef>
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#include <exception>
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#include <stdarg.h>
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#include <sstream>
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#include <ki_exception.h> // THROW_IO_ERROR
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static size_t write_callback( void* contents, size_t size, size_t nmemb, void* userp )
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{
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size_t realsize = size * nmemb;
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std::string* p = (std::string*) userp;
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p->append( (const char*) contents, realsize );
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return realsize;
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}
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KICAD_CURL_EASY::KICAD_CURL_EASY() :
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m_headers( NULL )
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{
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// Call KICAD_CURL::Init() from in here everytime, but only the first time
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// will incur any overhead. This strategy ensures that libcurl is never loaded
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// unless it is needed.
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KICAD_CURL::Init();
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m_CURL = curl_easy_init();
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if( !m_CURL )
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{
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THROW_IO_ERROR( "Unable to initialize CURL session" );
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}
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curl_easy_setopt( m_CURL, CURLOPT_WRITEFUNCTION, write_callback );
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curl_easy_setopt( m_CURL, CURLOPT_WRITEDATA, (void*) &m_buffer );
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}
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KICAD_CURL_EASY::~KICAD_CURL_EASY()
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{
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if( m_headers )
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curl_slist_free_all( m_headers );
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curl_easy_cleanup( m_CURL );
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}
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void KICAD_CURL_EASY::Perform()
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{
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if( m_headers )
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{
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curl_easy_setopt( m_CURL, CURLOPT_HTTPHEADER, m_headers );
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}
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// bonus: retain worst case memory allocation, should re-use occur
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m_buffer.clear();
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CURLcode res = curl_easy_perform( m_CURL );
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if( res != CURLE_OK )
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{
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std::string msg = "curl_easy_perform()=";
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msg += (int)res; msg += " "; msg += GetErrorText( res ).c_str();
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THROW_IO_ERROR( msg );
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}
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}
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void KICAD_CURL_EASY::SetHeader( const std::string& aName, const std::string& aValue )
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{
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std::string header = aName + ':' + aValue;
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m_headers = curl_slist_append( m_headers, header.c_str() );
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}
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template <typename T> int KICAD_CURL_EASY::setOption( int aOption, T aArg )
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{
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return curl_easy_setopt( m_CURL, (CURLoption)aOption, aArg );
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}
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const std::string KICAD_CURL_EASY::GetErrorText( int aCode )
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{
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return curl_easy_strerror( (CURLcode)aCode );
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}
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bool KICAD_CURL_EASY::SetUserAgent( const std::string& aAgent )
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{
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if( setOption<const char*>( CURLOPT_USERAGENT, aAgent.c_str() ) == CURLE_OK )
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{
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return true;
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}
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return false;
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}
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bool KICAD_CURL_EASY::SetURL( const std::string& aURL )
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{
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if( setOption<const char *>( CURLOPT_URL, aURL.c_str() ) == CURLE_OK )
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{
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return true;
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}
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return false;
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}
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bool KICAD_CURL_EASY::SetFollowRedirects( bool aFollow )
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{
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if( setOption<long>( CURLOPT_FOLLOWLOCATION , (aFollow ? 1 : 0) ) == CURLE_OK )
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{
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return true;
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}
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return false;
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}
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