/* Copyright 2009 Ryan Dahl <ry@tinyclouds.org>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#ifndef http_parser_h
#define http_parser_h
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _MSC_VER
# include <stddef.h>
#endif
#include <sys/types.h>
/* Compile with -DHTTP_PARSER_STRICT=0 to make less checks, but run
* faster
*/
#ifndef HTTP_PARSER_STRICT
# define HTTP_PARSER_STRICT 1
#else
# define HTTP_PARSER_STRICT 0
#endif
typedef struct http_parser http_parser;
/* Callbacks should return non-zero to indicate an error. The parse will
* then halt execution.
*
* http_data_cb does not return data chunks. It will be call arbitrarally
* many times for each string. E.G. you might get 10 callbacks for "on_path"
* each providing just a few characters more data.
*/
typedef int (*http_data_cb) (http_parser*, const char *at, size_t length);
typedef int (*http_cb) (http_parser*);
/* Request Methods */
enum http_method
{ HTTP_DELETE = 0x0002
, HTTP_GET = 0x0004
, HTTP_HEAD = 0x0008
, HTTP_POST = 0x0100
, HTTP_PUT = 0x0800
};
struct http_parser {
/** PRIVATE **/
unsigned short state;
unsigned short header_state;
size_t header_index;
char flags;
ssize_t body_read;
ssize_t content_length;
const char *header_field_mark;
size_t header_field_size;
const char *header_value_mark;
size_t header_value_size;
const char *query_string_mark;
size_t query_string_size;
const char *path_mark;
size_t path_size;
const char *url_mark;
size_t url_size;
const char *fragment_mark;
size_t fragment_size;
/** READ-ONLY **/
unsigned short status_code; /* responses only */
enum http_method method; /* requests only */
unsigned short http_major;
unsigned short http_minor;
/** PUBLIC **/
void *data; /* A pointer to get hook to the "connection" or "socket" object */
/* an ordered list of callbacks */
http_cb on_message_begin;
/* requests only */
http_data_cb on_path;
http_data_cb on_query_string;
http_data_cb on_url;
http_data_cb on_fragment;
http_data_cb on_header_field;
http_data_cb on_header_value;
http_cb on_headers_complete;
http_data_cb on_body;
http_cb on_message_complete;
};
void http_parser_init(http_parser *parser);
size_t http_parse_requests(http_parser *parser, const char *data, size_t len);
size_t http_parse_responses(http_parser *parser, const char *data, size_t len);
/* Call this in the on_headers_complete or on_message_complete callback to
* determine if this will be the last message on the connection.
* If you are the server, respond with the "Connection: close" header
* if you are the client, close the connection.
*/
int http_should_keep_alive(http_parser *parser);
#ifdef __cplusplus
}
#endif
#endif
