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// OpenVPN -- An application to securely tunnel IP networks
// over a single port, with support for SSL/TLS-based
// session authentication and key exchange,
// packet encryption, packet authentication, and
// packet compression.
//
// Copyright (C) 2012- OpenVPN Inc.
//
// SPDX-License-Identifier: MPL-2.0 OR AGPL-3.0-only WITH openvpn3-openssl-exception
//
//
// Source: pkg:github/chriskohlhoff/asio@asio-1-8-0#asio/src/examples/http
// Adapted from code Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
// Common utility methods for HTTP classes
#ifndef OPENVPN_HTTP_PARSEUTIL_H
#define OPENVPN_HTTP_PARSEUTIL_H
namespace openvpn::HTTP::Util {
// Check if a byte is an HTTP character.
inline bool is_char(const unsigned char c)
{
return c <= 127;
}
// Check if a byte is an HTTP control character.
inline bool is_ctl(const unsigned char c)
{
return (c <= 31) || (c == 127);
}
// Check if a byte is defined as an HTTP tspecial character.
inline bool is_tspecial(const unsigned char c)
{
switch (c)
{
case '(':
case ')':
case '<':
case '>':
case '@':
case ',':
case ';':
case ':':
case '\\':
case '"':
case '/':
case '[':
case ']':
case '?':
case '=':
case '{':
case '}':
case ' ':
case '\t':
return true;
default:
return false;
}
}
// Check if a byte is a digit.
inline bool is_digit(const unsigned char c)
{
return c >= '0' && c <= '9';
}
// Check if char should be URL-escaped
inline bool is_escaped(const unsigned char c)
{
if (c >= 'a' && c <= 'z')
return false;
if (c >= 'A' && c <= 'Z')
return false;
if (c >= '0' && c <= '9')
return false;
if (c == '.' || c == '-' || c == '_')
return false;
return true;
}
} // namespace openvpn::HTTP::Util
#endif
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