remwharead/src/curl_wrapper/src/types.cpp

52 lines
1.6 KiB
C++

/* This file is part of curl_wrapper.
* Copyright © 2020 tastytea <tastytea@tastytea.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, version 3.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "types.hpp"
#include <algorithm>
#include <cctype>
#include <string>
#include <string_view>
namespace curl_wrapper
{
using std::tolower;
std::string_view answer::get_header(const std::string_view field) const
{
const string searchstring{string(field) += ":"};
// clang-format off
auto it{std::search(headers.begin(), headers.end(), searchstring.begin(),
searchstring.end(),
[](unsigned char a, unsigned char b)
{ return tolower(a) == tolower(b); })};
// clang-format on
if (it != headers.end())
{
auto pos{static_cast<size_t>(it - headers.begin())};
pos = headers.find(':', pos) + 1;
pos = headers.find_first_not_of(' ', pos);
const auto endpos{headers.find_first_of("\r\n", pos)};
return string_view(&headers[pos], endpos - pos);
}
return {};
}
} // namespace curl_wrapper