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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
/**
* @author Peter Boros
* @date 2004/08/20
* @version $Id$
* @file fsamanager.cpp
* @brief
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "fsamanager.h"
#ifdef HAVE_CURL
#include <stdio.h>
#include <unistd.h>
#include <curl/curl.h>
#include <curl/types.h>
#include <curl/easy.h>
#endif
namespace fsa {
// {{{ FSAManager::~FSAManager()
FSAManager::~FSAManager()
{
for(LibraryIterator it=_library.begin(); it!=_library.end();++it){
delete it->second;
}
}
// }}}
// {{{ FSAManager::load()
bool FSAManager::load(const std::string &id, const std::string &url)
{
std::string file=url;
#if ((__GNUG__ == 3 && __GNUC_MINOR__ >= 1) || __GNUG__ > 3)
if(!url.compare(0,7,"http://"))
#else
if(!url.compare("http://",0,7))
#endif
{
unsigned int pos=url.find_last_of('/');
if(pos==url.size()-1) return false;
_cacheLock.lock();
file=_cacheDir;
_cacheLock.unlock();
if(file.size()>0 && file[file.size()-1]!='/') file+='/';
file+=url.substr(pos+1);
if(!getUrl(url,file)) return false;
}
FSA::Handle *newdict = new FSA::Handle(file);
if(!newdict->isOk()){
delete newdict;
return false;
}
_lock.wrLock();
{
LibraryIterator it = _library.find(id);
if(it!=_library.end()){
delete it->second;
it->second = newdict;
}
else
_library.insert(Library::value_type(id,newdict));
}
_lock.unlock();
return true;
}
// }}}
// {{{ FSAManager::getUrl()
bool FSAManager::getUrl(const std::string &url, const std::string &file)
{
#ifdef HAVE_CURL
CURL *curl_handle;
FILE *filehandle;
long response_code;
filehandle = fopen(file.c_str(),"r");
if(filehandle!=NULL){
fclose(filehandle);
return true;
}
filehandle = fopen(file.c_str(),"w");
if(filehandle==NULL)
return false;
curl_handle = curl_easy_init();
curl_easy_setopt(curl_handle, CURLOPT_URL, url.c_str());
curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, (void *)filehandle);
curl_easy_setopt(curl_handle, CURLOPT_USERAGENT, "libfsa-url-agent/0.1");
curl_easy_perform(curl_handle);
curl_easy_getinfo(curl_handle, CURLINFO_RESPONSE_CODE, &response_code);
curl_easy_cleanup(curl_handle);
fclose(filehandle);
if(response_code!=200){
unlink(file.c_str());
return false;
}
return true;
#else // HAVE_CURL
(void)url;(void)file;
return false;
#endif // HAVE_CURL
}
// }}}
// {{{ FSAManager::get()
FSA::Handle* FSAManager::get(const std::string &id) const
{
FSA::Handle *newhandle=NULL;
_lock.rdLock();
{
LibraryConstIterator it = _library.find(id);
if(it!=_library.end()){
newhandle = new FSA::Handle(*(it->second));
}
}
_lock.unlock();
return newhandle;
}
// }}}
// {{{ FSAManager::drop()
void FSAManager::drop(const std::string &id)
{
_lock.wrLock();
{
LibraryIterator it = _library.find(id);
if(it!=_library.end()){
delete it->second;
_library.erase(it);
}
}
_lock.unlock();
}
// }}}
// {{{ FSAManager::clear()
void FSAManager::clear()
{
_lock.wrLock();
{
for(LibraryIterator it = _library.begin(); it!=_library.end(); ++it)
delete it->second;
_library.clear();
}
_lock.unlock();
}
// }}}
// {{{ FSAManager::setCacheDir()
void FSAManager::setCacheDir(const std::string &dir)
{
_cacheLock.lock();
_cacheDir = dir;
_cacheLock.unlock();
}
// }}}
} // namespace fsa
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