constants.hpp
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/*
* Copyright (c) 2014, Peter Thorson. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the WebSocket++ Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef HTTP_CONSTANTS_HPP
#define HTTP_CONSTANTS_HPP
#include <exception>
#include <map>
#include <string>
#include <vector>
#include <utility>
namespace websocketpp {
/// HTTP handling support
namespace http {
/// The type of an HTTP attribute list
/**
* The attribute list is an unordered key/value map. Encoded attribute
* values are delimited by semicolons.
*/
typedef std::map<std::string,std::string> attribute_list;
/// The type of an HTTP parameter list
/**
* The parameter list is an ordered pairing of a parameter and its
* associated attribute list. Encoded parameter values are delimited by
* commas.
*/
typedef std::vector< std::pair<std::string,attribute_list> > parameter_list;
/// Literal value of the HTTP header delimiter
static char const header_delimiter[] = "\r\n";
/// Literal value of the HTTP header separator
static char const header_separator[] = ":";
/// Literal value of an empty header
static std::string const empty_header;
/// Maximum size in bytes before rejecting an HTTP header as too big.
size_t const max_header_size = 16000;
/// Default Maximum size in bytes for HTTP message bodies.
size_t const max_body_size = 32000000;
/// Number of bytes to use for temporary istream read buffers
size_t const istream_buffer = 512;
/// invalid HTTP token characters
/**
* 0x00 - 0x32, 0x7f-0xff
* ( ) < > @ , ; : \ " / [ ] ? = { }
*/
static char const header_token[] = {
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 00..0f
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 10..1f
0,1,0,1,1,1,1,1,0,0,1,1,0,1,1,0, // 20..2f
1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0, // 30..3f
0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, // 40..4f
1,1,1,1,1,1,1,1,1,1,1,0,0,0,1,1, // 50..5f
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, // 60..6f
1,1,1,1,1,1,1,1,1,1,1,0,1,0,1,0, // 70..7f
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 80..8f
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 90..9f
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // a0..af
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // b0..bf
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // c0..cf
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // d0..df
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // e0..ef
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // f0..ff
};
/// Is the character a token
inline bool is_token_char(unsigned char c) {
return (header_token[c] == 1);
}
/// Is the character a non-token
inline bool is_not_token_char(unsigned char c) {
return !header_token[c];
}
/// Is the character whitespace
/**
* whitespace is space (32) or horizontal tab (9)
*/
inline bool is_whitespace_char(unsigned char c) {
return (c == 9 || c == 32);
}
/// Is the character non-whitespace
inline bool is_not_whitespace_char(unsigned char c) {
return (c != 9 && c != 32);
}
/// HTTP Status codes
namespace status_code {
enum value {
uninitialized = 0,
continue_code = 100,
switching_protocols = 101,
ok = 200,
created = 201,
accepted = 202,
non_authoritative_information = 203,
no_content = 204,
reset_content = 205,
partial_content = 206,
multiple_choices = 300,
moved_permanently = 301,
found = 302,
see_other = 303,
not_modified = 304,
use_proxy = 305,
temporary_redirect = 307,
bad_request = 400,
unauthorized = 401,
payment_required = 402,
forbidden = 403,
not_found = 404,
method_not_allowed = 405,
not_acceptable = 406,
proxy_authentication_required = 407,
request_timeout = 408,
conflict = 409,
gone = 410,
length_required = 411,
precondition_failed = 412,
request_entity_too_large = 413,
request_uri_too_long = 414,
unsupported_media_type = 415,
request_range_not_satisfiable = 416,
expectation_failed = 417,
im_a_teapot = 418,
upgrade_required = 426,
precondition_required = 428,
too_many_requests = 429,
request_header_fields_too_large = 431,
internal_server_error = 500,
not_implemented = 501,
bad_gateway = 502,
service_unavailable = 503,
gateway_timeout = 504,
http_version_not_supported = 505,
not_extended = 510,
network_authentication_required = 511
};
// TODO: should this be inline?
inline std::string get_string(value c) {
switch (c) {
case uninitialized:
return "Uninitialized";
case continue_code:
return "Continue";
case switching_protocols:
return "Switching Protocols";
case ok:
return "OK";
case created:
return "Created";
case accepted:
return "Accepted";
case non_authoritative_information:
return "Non Authoritative Information";
case no_content:
return "No Content";
case reset_content:
return "Reset Content";
case partial_content:
return "Partial Content";
case multiple_choices:
return "Multiple Choices";
case moved_permanently:
return "Moved Permanently";
case found:
return "Found";
case see_other:
return "See Other";
case not_modified:
return "Not Modified";
case use_proxy:
return "Use Proxy";
case temporary_redirect:
return "Temporary Redirect";
case bad_request:
return "Bad Request";
case unauthorized:
return "Unauthorized";
case payment_required:
return "Payment Required";
case forbidden:
return "Forbidden";
case not_found:
return "Not Found";
case method_not_allowed:
return "Method Not Allowed";
case not_acceptable:
return "Not Acceptable";
case proxy_authentication_required:
return "Proxy Authentication Required";
case request_timeout:
return "Request Timeout";
case conflict:
return "Conflict";
case gone:
return "Gone";
case length_required:
return "Length Required";
case precondition_failed:
return "Precondition Failed";
case request_entity_too_large:
return "Request Entity Too Large";
case request_uri_too_long:
return "Request-URI Too Long";
case unsupported_media_type:
return "Unsupported Media Type";
case request_range_not_satisfiable:
return "Requested Range Not Satisfiable";
case expectation_failed:
return "Expectation Failed";
case im_a_teapot:
return "I'm a teapot";
case upgrade_required:
return "Upgrade Required";
case precondition_required:
return "Precondition Required";
case too_many_requests:
return "Too Many Requests";
case request_header_fields_too_large:
return "Request Header Fields Too Large";
case internal_server_error:
return "Internal Server Error";
case not_implemented:
return "Not Implemented";
case bad_gateway:
return "Bad Gateway";
case service_unavailable:
return "Service Unavailable";
case gateway_timeout:
return "Gateway Timeout";
case http_version_not_supported:
return "HTTP Version Not Supported";
case not_extended:
return "Not Extended";
case network_authentication_required:
return "Network Authentication Required";
default:
return "Unknown";
}
}
}
class exception : public std::exception {
public:
exception(const std::string& log_msg,
status_code::value error_code,
const std::string& error_msg = std::string(),
const std::string& body = std::string())
: m_msg(log_msg)
, m_error_msg(error_msg)
, m_body(body)
, m_error_code(error_code) {}
~exception() throw() {}
virtual const char* what() const throw() {
return m_msg.c_str();
}
std::string m_msg;
std::string m_error_msg;
std::string m_body;
status_code::value m_error_code;
};
}
}
#endif // HTTP_CONSTANTS_HPP