diff options
Diffstat (limited to 'common/kicad_curl/kicad_curl_easy.cpp')
-rw-r--r-- | common/kicad_curl/kicad_curl_easy.cpp | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/common/kicad_curl/kicad_curl_easy.cpp b/common/kicad_curl/kicad_curl_easy.cpp new file mode 100644 index 0000000..1e84afe --- /dev/null +++ b/common/kicad_curl/kicad_curl_easy.cpp @@ -0,0 +1,94 @@ +/* + * This program source code file is part of KiCad, a free EDA CAD application. + * + * Copyright (C) 2015 Mark Roszko <mark.roszko@gmail.com> + * Copyright (C) 2015 KiCad Developers, see CHANGELOG.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 + */ + +#include <kicad_curl/kicad_curl_easy.h> + +#include <cstddef> +#include <exception> +#include <stdarg.h> +#include <sstream> +#include <richio.h> + + +static size_t write_callback( void* contents, size_t size, size_t nmemb, void* userp ) +{ + size_t realsize = size * nmemb; + + std::string* p = (std::string*) userp; + + p->append( (const char*) contents, realsize ); + + return realsize; +} + + +KICAD_CURL_EASY::KICAD_CURL_EASY() : + m_headers( NULL ) +{ + // Call KICAD_CURL::Init() from in here everytime, but only the first time + // will incur any overhead. This strategy ensures that libcurl is never loaded + // unless it is needed. + + KICAD_CURL::Init(); + + m_CURL = curl_easy_init(); + + if( !m_CURL ) + { + THROW_IO_ERROR( "Unable to initialize CURL session" ); + } + + curl_easy_setopt( m_CURL, CURLOPT_WRITEFUNCTION, write_callback ); + curl_easy_setopt( m_CURL, CURLOPT_WRITEDATA, (void*) &m_buffer ); +} + + +KICAD_CURL_EASY::~KICAD_CURL_EASY() +{ + if( m_headers ) + curl_slist_free_all( m_headers ); + + curl_easy_cleanup( m_CURL ); +} + + +void KICAD_CURL_EASY::Perform() +{ + if( m_headers ) + { + curl_easy_setopt( m_CURL, CURLOPT_HTTPHEADER, m_headers ); + } + + // bonus: retain worst case memory allocation, should re-use occur + m_buffer.clear(); + + CURLcode res = curl_easy_perform( m_CURL ); + + if( res != CURLE_OK ) + { + std::string msg = StrPrintf( "curl_easy_perform()=%d: %s", + res, GetErrorText( res ).c_str() ); + THROW_IO_ERROR( msg ); + } +} |