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150 lines
5.7 KiB
C
150 lines
5.7 KiB
C
/* httpp.h
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**
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** http parsing library
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**
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** Copyright (C) 2014 Michael Smith <msmith@icecast.org>,
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** Ralph Giles <giles@xiph.org>,
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** Karl Heyes <karl@xiph.org>,
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** Copyright (C) 2012-2019 by Philipp "ph3-der-loewe" Schafft <lion@lion.leolix.org>
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**
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** This library is free software; you can redistribute it and/or
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** modify it under the terms of the GNU Library General Public
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** License as published by the Free Software Foundation; either
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** version 2 of the License, or (at your option) any later version.
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**
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** This library is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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** Library General Public License for more details.
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**
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** You should have received a copy of the GNU Library General Public
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** License along with this library; if not, write to the
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** Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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** Boston, MA 02110-1301, USA.
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**
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*/
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#ifndef __HTTPP_H
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#define __HTTPP_H
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#include <avl/avl.h>
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#define HTTPP_VAR_PROTOCOL "__protocol"
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#define HTTPP_VAR_VERSION "__version"
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#define HTTPP_VAR_URI "__uri"
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#define HTTPP_VAR_RAWURI "__rawuri"
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#define HTTPP_VAR_QUERYARGS "__queryargs"
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#define HTTPP_VAR_REQ_TYPE "__req_type"
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#define HTTPP_VAR_ERROR_MESSAGE "__errormessage"
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#define HTTPP_VAR_ERROR_CODE "__errorcode"
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#define HTTPP_VAR_ICYPASSWORD "__icy_password"
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typedef enum {
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HTTPP_NS_VAR,
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HTTPP_NS_HEADER,
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HTTPP_NS_QUERY_STRING,
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HTTPP_NS_POST_BODY
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} httpp_ns_t;
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typedef enum httpp_request_type_tag {
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/* Initial and internally used state of the engine */
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httpp_req_none = 0,
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/* Part of HTTP standard: GET, POST, PUT and HEAD */
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httpp_req_get,
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httpp_req_post,
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httpp_req_put,
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httpp_req_head,
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httpp_req_options,
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httpp_req_delete,
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httpp_req_trace,
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httpp_req_connect,
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/* Icecast SOURCE, to be replaced with PUT some day */
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httpp_req_source,
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/* XXX: ??? */
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httpp_req_play,
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/* Icecast 2.x STATS, to request a live stream of stats events */
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httpp_req_stats,
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/* Used if request method is unknown. MUST BE LAST ONE IN LIST. */
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httpp_req_unknown
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} httpp_request_type_e;
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typedef unsigned int httpp_request_info_t;
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#define HTTPP_REQUEST_IS_SAFE ((httpp_request_info_t)0x0001U)
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#define HTTPP_REQUEST_IS_IDEMPOTENT ((httpp_request_info_t)0x0002U)
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#define HTTPP_REQUEST_IS_CACHEABLE ((httpp_request_info_t)0x0004U)
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#define HTTPP_REQUEST_HAS_RESPONSE_BODY ((httpp_request_info_t)0x0010U)
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#define HTTPP_REQUEST_HAS_REQUEST_BODY ((httpp_request_info_t)0x0100U)
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#define HTTPP_REQUEST_HAS_OPTIONAL_REQUEST_BODY ((httpp_request_info_t)0x0200U)
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typedef struct http_var_tag http_var_t;
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struct http_var_tag {
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char *name;
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size_t values;
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char **value;
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};
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typedef struct http_varlist_tag {
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http_var_t var;
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struct http_varlist_tag *next;
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} http_varlist_t;
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typedef struct http_parser_tag {
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size_t refc;
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httpp_request_type_e req_type;
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char *uri;
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avl_tree *vars;
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avl_tree *queryvars;
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avl_tree *postvars;
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} http_parser_t;
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#ifdef _mangle
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# define httpp_request_info _mangle(httpp_request_info)
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# define httpp_create_parser _mangle(httpp_create_parser)
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# define httpp_initialize _mangle(httpp_initialize)
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# define httpp_parse _mangle(httpp_parse)
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# define httpp_parse_icy _mangle(httpp_parse_icy)
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# define httpp_parse_response _mangle(httpp_parse_response)
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# define httpp_parse_postdata _mangle(httpp_parse_postdata)
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# define httpp_setvar _mangle(httpp_setvar)
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# define httpp_getvar _mangle(httpp_getvar)
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# define httpp_set_query_param _mangle(httpp_set_query_param)
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# define httpp_get_query_param _mangle(httpp_get_query_param)
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# define httpp_set_post_param _mangle(httpp_set_post_param)
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# define httpp_get_post_param _mangle(httpp_get_post_param)
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# define httpp_get_param _mangle(httpp_get_param)
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# define httpp_release _mangle(httpp_release)
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# define httpp_destroy _mangle(httpp_release)
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# define httpp_addref _mangle(httpp_addref)
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# define httpp_clear _mangle(httpp_clear)
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#else
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# define httpp_destroy(x) httpp_release((x))
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#endif
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httpp_request_info_t httpp_request_info(httpp_request_type_e req);
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http_parser_t *httpp_create_parser(void);
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void httpp_initialize(http_parser_t *parser, http_varlist_t *defaults);
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int httpp_parse(http_parser_t *parser, const char *http_data, unsigned long len);
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int httpp_parse_icy(http_parser_t *parser, const char *http_data, unsigned long len);
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int httpp_parse_response(http_parser_t *parser, const char *http_data, unsigned long len, const char *uri);
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int httpp_parse_postdata(http_parser_t *parser, const char *body_data, size_t len);
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void httpp_setvar(http_parser_t *parser, const char *name, const char *value);
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void httpp_deletevar(http_parser_t *parser, const char *name);
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const char *httpp_getvar(http_parser_t *parser, const char *name);
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void httpp_set_query_param(http_parser_t *parser, const char *name, const char *value);
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const char *httpp_get_query_param(http_parser_t *parser, const char *name);
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void httpp_set_post_param(http_parser_t *parser, const char *name, const char *value);
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const char *httpp_get_post_param(http_parser_t *parser, const char *name);
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const char *httpp_get_param(http_parser_t *parser, const char *name);
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const http_var_t *httpp_get_param_var(http_parser_t *parser, const char *name);
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const http_var_t *httpp_get_any_var(http_parser_t *parser, httpp_ns_t ns, const char *name);
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char ** httpp_get_any_key(http_parser_t *parser, httpp_ns_t ns);
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void httpp_free_any_key(char **keys);
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int httpp_addref(http_parser_t *parser);
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int httpp_release(http_parser_t *parser);
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/* util functions */
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httpp_request_type_e httpp_str_to_method(const char * method);
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#endif
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