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Copy pathauth_text.hpp
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57 lines (41 loc) · 1.96 KB
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/*
This file is part of libhttpserver
Copyright (C) 2011-2026 Sebastiano Merlino
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see the file LICENSE in
the distribution; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
// The ASCII case helpers the authentication translation units share
// (TASK-115; the duplication gate requires one copy, not one per auth
// policy). Scheme tokens, algorithm tokens, and qop tokens are all
// ASCII case-insensitive per RFC 7235 section 2.1, and the response
// hex arrives client-cased while the server computes canonical
// lowercase. Locale-independent by construction: only A-Z fold.
#if !defined(HTTPSERVER_COMPILATION)
#error "auth_text.hpp is internal; only reachable when compiling libhttpserver."
#endif
#ifndef SRC_HTTPSERVER_DETAIL_AUTH_TEXT_HPP_
#define SRC_HTTPSERVER_DETAIL_AUTH_TEXT_HPP_
#include <string_view>
namespace httpserver {
namespace detail {
namespace auth_text {
inline char lowered(char c) noexcept {
return (c >= 'A' && c <= 'Z') ? static_cast<char>(c - 'A' + 'a')
: c;
}
bool ascii_iequal(std::string_view left,
std::string_view right) noexcept;
} // namespace auth_text
} // namespace detail
} // namespace httpserver
#endif // SRC_HTTPSERVER_DETAIL_AUTH_TEXT_HPP_