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c060d08767
New parser set_option function for controlling independent size limits on headers and body. By default request and response parsers are set up with reasonable limits to prevent resource exhaustion attacks. * Parser adheres strictly to rfc7230 * Increased test coverage * Headers and body maximum size limit options
175 lines
3.7 KiB
C++
175 lines
3.7 KiB
C++
//
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// Copyright (c) 2013-2016 Vinnie Falco (vinnie dot falco at gmail dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef BEAST_HTTP_PARSE_ERROR_HPP
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#define BEAST_HTTP_PARSE_ERROR_HPP
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#include <beast/core/error.hpp>
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namespace beast {
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namespace http {
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enum class parse_error
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{
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connection_closed,
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bad_method,
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bad_uri,
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bad_version,
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bad_crlf,
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bad_request,
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bad_status,
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bad_reason,
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bad_field,
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bad_value,
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bad_content_length,
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illegal_content_length,
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bad_on_headers_rv,
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invalid_chunk_size,
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invalid_ext_name,
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invalid_ext_val,
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headers_too_big,
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body_too_big,
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short_read,
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general
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};
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class parse_error_category : public boost::system::error_category
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{
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public:
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const char*
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name() const noexcept override
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{
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return "http";
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}
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std::string
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message(int ev) const override
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{
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switch(static_cast<parse_error>(ev))
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{
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case parse_error::connection_closed:
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return "data after Connection close";
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case parse_error::bad_method:
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return "bad method";
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case parse_error::bad_uri:
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return "bad request-target";
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case parse_error::bad_version:
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return "bad HTTP-Version";
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case parse_error::bad_crlf:
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return "missing CRLF";
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case parse_error::bad_request:
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return "bad reason-phrase";
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case parse_error::bad_status:
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return "bad status-code";
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case parse_error::bad_reason:
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return "bad reason-phrase";
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case parse_error::bad_field:
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return "bad field token";
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case parse_error::bad_value:
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return "bad field-value";
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case parse_error::bad_content_length:
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return "bad Content-Length";
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case parse_error::illegal_content_length:
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return "illegal Content-Length with chunked Transfer-Encoding";
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case parse_error::bad_on_headers_rv:
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return "on_headers returned an unknown value";
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case parse_error::invalid_chunk_size:
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return "invalid chunk size";
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case parse_error::invalid_ext_name:
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return "invalid ext name";
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case parse_error::invalid_ext_val:
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return "invalid ext val";
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case parse_error::headers_too_big:
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return "headers size limit exceeded";
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case parse_error::body_too_big:
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return "body size limit exceeded";
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case parse_error::short_read:
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return "unexpected end of data";
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default:
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return "parse error";
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}
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}
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boost::system::error_condition
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default_error_condition(int ev) const noexcept override
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{
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return boost::system::error_condition(ev, *this);
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}
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bool
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equivalent(int ev,
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boost::system::error_condition const& condition
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) const noexcept override
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{
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return condition.value() == ev &&
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&condition.category() == this;
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}
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bool
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equivalent(error_code const& error, int ev) const noexcept override
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{
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return error.value() == ev &&
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&error.category() == this;
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}
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};
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inline
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boost::system::error_category const&
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get_parse_error_category()
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{
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static parse_error_category const cat{};
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return cat;
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}
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inline
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boost::system::error_code
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make_error_code(parse_error ev)
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{
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return error_code(static_cast<int>(ev),
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get_parse_error_category());
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}
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} // http
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} // beast
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namespace boost {
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namespace system {
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template<>
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struct is_error_code_enum<beast::http::parse_error>
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{
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static bool const value = true;
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};
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} // system
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} // boost
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#endif
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