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kicad/common/kicad_curl/kicad_curl_easy.cpp

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/*
* 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) 2015-2021 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
*/
// kicad_curl_easy.h **must be** included before any wxWidgets header to avoid conflicts
// at least on Windows/msys2
#include <curl/curl.h>
#include <curl/easy.h>
#include <kicad_curl/kicad_curl.h>
#include <kicad_curl/kicad_curl_easy.h>
#include <cstdarg>
#include <cstddef>
#include <exception>
#include <sstream>
#include <wx/app.h>
#include <build_version.h>
#include <ki_exception.h> // THROW_IO_ERROR
#include <kiplatform/app.h>
#include <kiplatform/environment.h>
#include <pgm_base.h>
struct CURL_PROGRESS
{
KICAD_CURL_EASY* curl;
TRANSFER_CALLBACK callback;
curl_off_t last_run_time;
curl_off_t interval;
CURL_PROGRESS( KICAD_CURL_EASY* c, TRANSFER_CALLBACK cb, curl_off_t i ) :
curl( c ), callback( cb ), last_run_time( 0 ), interval( i )
{
}
};
static size_t write_callback( void* contents, size_t size, size_t nmemb, void* userp )
{
size_t realsize = size * nmemb;
std::string* p = static_cast<std::string*>( userp );
p->append( static_cast<const char*>( contents ), realsize );
return realsize;
}
static size_t stream_write_callback( void* contents, size_t size, size_t nmemb, void* userp )
{
size_t realsize = size * nmemb;
std::ostream* p = (std::ostream*) userp;
p->write( static_cast<const char*>( contents ), realsize );
return realsize;
}
static int xferinfo( void* p, curl_off_t dltotal, curl_off_t dlnow, curl_off_t ultotal,
curl_off_t ulnow )
{
CURL_PROGRESS* progress = static_cast<CURL_PROGRESS*>( p );
curl_off_t curtime = 0;
curl_easy_getinfo( progress->curl->GetCurl(), CURLINFO_TOTAL_TIME, &curtime );
if( curtime - progress->last_run_time >= progress->interval )
{
progress->last_run_time = curtime;
return progress->callback( dltotal, dlnow, ultotal, ulnow );
}
return CURLE_OK;
}
static int progressinfo( void* p, double dltotal, double dlnow, double ultotal, double ulnow )
{
return xferinfo( p, static_cast<curl_off_t>( dltotal ), static_cast<curl_off_t>( dlnow ),
static_cast<curl_off_t>( ultotal ), static_cast<curl_off_t>( ulnow ) );
}
KICAD_CURL_EASY::KICAD_CURL_EASY() : m_headers( nullptr )
{
// Call KICAD_CURL::Init() from in here every time, 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 );
// Only allow HTTP and HTTPS protocols
curl_easy_setopt( m_CURL, CURLOPT_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS );
#ifdef _WIN32
// We need to this to allow using the Windows Certificate store
curl_easy_setopt( m_CURL, CURLOPT_SSL_OPTIONS, CURLSSLOPT_NATIVE_CA );
#endif
wxPlatformInfo platformInfo;
wxString application( Pgm().App().GetAppName() );
wxString version( GetBuildVersion() );
wxString platform = "(" + wxGetOsDescription() + ";" + GetPlatformGetBitnessName();
#if defined( KICAD_BUILD_ARCH_X64 )
platform << ";64-bit";
#elif defined( KICAD_BUILD_ARCH_X86 )
platform << ";32-bit";
#elif defined( KICAD_BUILD_ARCH_ARM )
platform << ";ARM 32-bit";
#elif defined( KICAD_BUILD_ARCH_ARM64 )
platform << ";ARM 64-bit";
#endif
platform << ")";
wxString user_agent = "KiCad/" + version + " " + platform + " " + application;
user_agent << "/" << GetBuildDate();
setOption<const char*>( CURLOPT_USERAGENT, user_agent.ToStdString().c_str() );
setOption( CURLOPT_ACCEPT_ENCODING, "gzip,deflate" );
}
KICAD_CURL_EASY::~KICAD_CURL_EASY()
{
if( m_headers )
curl_slist_free_all( m_headers );
curl_easy_cleanup( m_CURL );
}
int 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 );
return res;
}
void KICAD_CURL_EASY::SetHeader( const std::string& aName, const std::string& aValue )
{
std::string header = aName + ':' + aValue;
m_headers = curl_slist_append( m_headers, header.c_str() );
}
template <typename T>
int KICAD_CURL_EASY::setOption( int aOption, T aArg )
{
return curl_easy_setopt( m_CURL, static_cast<CURLoption>( aOption ), aArg );
}
const std::string KICAD_CURL_EASY::GetErrorText( int aCode )
{
return curl_easy_strerror( static_cast<CURLcode>( aCode ) );
}
bool KICAD_CURL_EASY::SetUserAgent( const std::string& aAgent )
{
if( setOption<const char*>( CURLOPT_USERAGENT, aAgent.c_str() ) == CURLE_OK )
{
return true;
}
return false;
}
bool KICAD_CURL_EASY::SetURL( const std::string& aURL )
{
if( setOption<const char*>( CURLOPT_URL, aURL.c_str() ) == CURLE_OK )
{
KIPLATFORM::ENV::PROXY_CONFIG cfg;
// Unforunately on Windows land, proxies can be configured depending on destination url
// So we also check and set any proxy config here
if( KIPLATFORM::ENV::GetSystemProxyConfig( aURL, cfg ) )
{
curl_easy_setopt( m_CURL, CURLOPT_PROXY, static_cast<const char*>( cfg.host.c_str() ) );
if( !cfg.username.empty() )
{
curl_easy_setopt( m_CURL, CURLOPT_PROXYUSERNAME,
static_cast<const char*>( cfg.username.c_str() ) );
}
if( !cfg.password.empty() )
{
curl_easy_setopt( m_CURL, CURLOPT_PROXYPASSWORD,
static_cast<const char*>( cfg.password.c_str() ) );
}
}
return true;
}
return false;
}
bool KICAD_CURL_EASY::SetFollowRedirects( bool aFollow )
{
if( setOption<long>( CURLOPT_FOLLOWLOCATION, ( aFollow ? 1 : 0 ) ) == CURLE_OK )
{
return true;
}
return false;
}
std::string KICAD_CURL_EASY::Escape( const std::string& aUrl )
{
char* escaped = curl_easy_escape( m_CURL, aUrl.c_str(), aUrl.length() );
std::string ret( escaped );
curl_free( escaped );
return ret;
}
bool KICAD_CURL_EASY::SetTransferCallback( const TRANSFER_CALLBACK& aCallback, size_t aInterval )
{
progress = std::make_unique<CURL_PROGRESS>( this, aCallback,
static_cast<curl_off_t>( aInterval ) );
#ifdef CURLOPT_XFERINFOFUNCTION
setOption( CURLOPT_XFERINFOFUNCTION, xferinfo );
setOption( CURLOPT_XFERINFODATA, progress.get() );
#else
setOption( CURLOPT_PROGRESSFUNCTION, progressinfo );
setOption( CURLOPT_PROGRESSDATA, progress.get() );
#endif
setOption( CURLOPT_NOPROGRESS, 0L );
return true;
}
bool KICAD_CURL_EASY::SetOutputStream( const std::ostream* aOutput )
{
curl_easy_setopt( m_CURL, CURLOPT_WRITEFUNCTION, stream_write_callback );
curl_easy_setopt( m_CURL, CURLOPT_WRITEDATA, reinterpret_cast<const void*>( aOutput ) );
return true;
}
int KICAD_CURL_EASY::GetTransferTotal( uint64_t& aDownloadedBytes ) const
{
#ifdef CURLINFO_SIZE_DOWNLOAD_T
curl_off_t dl;
int result = curl_easy_getinfo( m_CURL, CURLINFO_SIZE_DOWNLOAD_T, &dl );
aDownloadedBytes = static_cast<uint64_t>( dl );
#else
double dl;
int result = curl_easy_getinfo( m_CURL, CURLINFO_SIZE_DOWNLOAD, &dl );
aDownloadedBytes = static_cast<uint64_t>( dl );
#endif
return result;
}
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