| |
| /* |
| * Copyright (C) Igor Sysoev |
| * Copyright (C) Nginx, Inc. |
| */ |
| |
| |
| #ifndef _NGX_HTTP_VARIABLES_H_INCLUDED_ |
| #define _NGX_HTTP_VARIABLES_H_INCLUDED_ |
| |
| |
| #include <ngx_config.h> |
| #include <ngx_core.h> |
| #include <ngx_http.h> |
| |
| |
| typedef ngx_variable_value_t ngx_http_variable_value_t; |
| |
| #define ngx_http_variable(v) { sizeof(v) - 1, 1, 0, 0, 0, (u_char *) v } |
| |
| typedef struct ngx_http_variable_s ngx_http_variable_t; |
| |
| typedef void (*ngx_http_set_variable_pt) (ngx_http_request_t *r, |
| ngx_http_variable_value_t *v, uintptr_t data); |
| typedef ngx_int_t (*ngx_http_get_variable_pt) (ngx_http_request_t *r, |
| ngx_http_variable_value_t *v, uintptr_t data); |
| |
| |
| #define NGX_HTTP_VAR_CHANGEABLE 1 |
| #define NGX_HTTP_VAR_NOCACHEABLE 2 |
| #define NGX_HTTP_VAR_INDEXED 4 |
| #define NGX_HTTP_VAR_NOHASH 8 |
| #define NGX_HTTP_VAR_WEAK 16 |
| #define NGX_HTTP_VAR_PREFIX 32 |
| |
| |
| struct ngx_http_variable_s { |
| ngx_str_t name; /* must be first to build the hash */ |
| ngx_http_set_variable_pt set_handler; |
| ngx_http_get_variable_pt get_handler; |
| uintptr_t data; |
| ngx_uint_t flags; |
| ngx_uint_t index; |
| }; |
| |
| #define ngx_http_null_variable { ngx_null_string, NULL, NULL, 0, 0, 0 } |
| |
| |
| ngx_http_variable_t *ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, |
| ngx_uint_t flags); |
| ngx_int_t ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name); |
| ngx_http_variable_value_t *ngx_http_get_indexed_variable(ngx_http_request_t *r, |
| ngx_uint_t index); |
| ngx_http_variable_value_t *ngx_http_get_flushed_variable(ngx_http_request_t *r, |
| ngx_uint_t index); |
| |
| ngx_http_variable_value_t *ngx_http_get_variable(ngx_http_request_t *r, |
| ngx_str_t *name, ngx_uint_t key); |
| |
| ngx_int_t ngx_http_variable_unknown_header(ngx_http_request_t *r, |
| ngx_http_variable_value_t *v, ngx_str_t *var, ngx_list_part_t *part, |
| size_t prefix); |
| |
| |
| #if (NGX_PCRE) |
| |
| typedef struct { |
| ngx_uint_t capture; |
| ngx_int_t index; |
| } ngx_http_regex_variable_t; |
| |
| |
| typedef struct { |
| ngx_regex_t *regex; |
| ngx_uint_t ncaptures; |
| ngx_http_regex_variable_t *variables; |
| ngx_uint_t nvariables; |
| ngx_str_t name; |
| } ngx_http_regex_t; |
| |
| |
| typedef struct { |
| ngx_http_regex_t *regex; |
| void *value; |
| } ngx_http_map_regex_t; |
| |
| |
| ngx_http_regex_t *ngx_http_regex_compile(ngx_conf_t *cf, |
| ngx_regex_compile_t *rc); |
| ngx_int_t ngx_http_regex_exec(ngx_http_request_t *r, ngx_http_regex_t *re, |
| ngx_str_t *s); |
| |
| #endif |
| |
| |
| typedef struct { |
| ngx_hash_combined_t hash; |
| #if (NGX_PCRE) |
| ngx_http_map_regex_t *regex; |
| ngx_uint_t nregex; |
| #endif |
| } ngx_http_map_t; |
| |
| |
| void *ngx_http_map_find(ngx_http_request_t *r, ngx_http_map_t *map, |
| ngx_str_t *match); |
| |
| |
| ngx_int_t ngx_http_variables_add_core_vars(ngx_conf_t *cf); |
| ngx_int_t ngx_http_variables_init_vars(ngx_conf_t *cf); |
| |
| |
| extern ngx_http_variable_value_t ngx_http_variable_null_value; |
| extern ngx_http_variable_value_t ngx_http_variable_true_value; |
| |
| |
| #endif /* _NGX_HTTP_VARIABLES_H_INCLUDED_ */ |