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128 lines
3.8 KiB
128 lines
3.8 KiB
/* Copyright (c) 2008 Ryan Dahl (ry@tinyclouds.org)
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* All rights reserved.
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*
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* This parser is based on code from Zed Shaw's Mongrel.
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* Copyright (c) 2005 Zed A. Shaw
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef http_parser_h
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#define http_parser_h
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <sys/types.h>
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typedef struct http_parser http_parser;
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/* Callbacks should return non-zero to indicate an error. The parse will
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* then halt execution.
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*
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* http_data_cb does not return data chunks. It will be call arbitrarally
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* many times for each string. E.G. you might get 10 callbacks for "on_path"
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* each providing just a few characters more data.
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*/
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typedef int (*http_data_cb) (http_parser*, const char *at, size_t length);
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typedef int (*http_cb) (http_parser*);
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/* Request Methods */
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#define HTTP_COPY 0x0001
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#define HTTP_DELETE 0x0002
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#define HTTP_GET 0x0004
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#define HTTP_HEAD 0x0008
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#define HTTP_LOCK 0x0010
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#define HTTP_MKCOL 0x0020
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#define HTTP_MOVE 0x0040
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#define HTTP_OPTIONS 0x0080
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#define HTTP_POST 0x0100
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#define HTTP_PROPFIND 0x0200
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#define HTTP_PROPPATCH 0x0400
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#define HTTP_PUT 0x0800
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#define HTTP_TRACE 0x1000
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#define HTTP_UNLOCK 0x2000
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/* Transfer Encodings */
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#define HTTP_IDENTITY 0x01
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#define HTTP_CHUNKED 0x02
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enum http_parser_type { HTTP_REQUEST, HTTP_RESPONSE };
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struct http_parser {
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/** PRIVATE **/
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int cs;
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enum http_parser_type type;
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size_t chunk_size;
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unsigned eating:1;
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size_t body_read;
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const char *header_field_mark;
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const char *header_value_mark;
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const char *query_string_mark;
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const char *path_mark;
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const char *uri_mark;
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const char *fragment_mark;
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/** READ-ONLY **/
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unsigned short status_code; /* responses only */
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unsigned short method; /* requests only */
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short transfer_encoding;
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unsigned short version_major;
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unsigned short version_minor;
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short keep_alive;
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size_t content_length;
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/** PUBLIC **/
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void *data; /* A pointer to get hook to the "connection" or "socket" object */
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/* an ordered list of callbacks */
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http_cb on_message_begin;
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/* requests only */
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http_data_cb on_path;
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http_data_cb on_query_string;
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http_data_cb on_uri;
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http_data_cb on_fragment;
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http_data_cb on_header_field;
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http_data_cb on_header_value;
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http_cb on_headers_complete;
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http_data_cb on_body;
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http_cb on_message_complete;
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};
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/* Initializes an http_parser structure. The second argument specifies if
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* it will be parsing requests or responses.
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*/
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void http_parser_init (http_parser *parser, enum http_parser_type);
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size_t http_parser_execute (http_parser *parser, const char *data, size_t len);
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int http_parser_has_error (http_parser *parser);
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int http_parser_should_keep_alive (http_parser *parser);
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#ifdef __cplusplus
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}
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#endif
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#endif
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