libkiwix/src/opds_catalog.cpp

75 lines
1.8 KiB
C++

/*
* Copyright 2021 Veloman Yunkan <veloman.yunkan@gmail.com>
*
* 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
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include "opds_catalog.h"
#include "tools/stringTools.h"
#include <sstream>
namespace kiwix
{
namespace
{
const char opdsSearchEndpoint[] = "/catalog/v2/entries";
enum Separator { AMP };
std::ostringstream& operator<<(std::ostringstream& oss, Separator sep)
{
if ( oss.tellp() > 0 )
oss << "&";
return oss;
}
std::string buildSearchString(const Filter& f)
{
std::ostringstream oss;
if ( f.hasQuery() )
oss << AMP << "q=" << urlEncode(f.getQuery());
if ( f.hasCategory() )
oss << AMP << "category=" << urlEncode(f.getCategory());
if ( f.hasLang() )
oss << AMP << "lang=" << urlEncode(f.getLang());
if ( f.hasName() )
oss << AMP << "name=" << urlEncode(f.getName());
if ( !f.getAcceptTags().empty() )
oss << AMP << "tag=" << urlEncode(join(f.getAcceptTags(), ";"));
return oss.str();
}
} // unnamed namespace
std::string getSearchUrl(const Filter& f)
{
const std::string searchString = buildSearchString(f);
if ( searchString.empty() )
return opdsSearchEndpoint;
else
return opdsSearchEndpoint + ("?" + searchString);
}
} // namespace kiwix