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annotate src/http/ngx_http_variables.h @ 4412:d620f497c50f

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Copyright updated.
author Maxim Konovalov <maxim@nginx.com>
date Wed, 18 Jan 2012 15:07:43 +0000
parents fa4612bfb9fa
children a33b8c3aa975
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 * Copyright (C) Nginx, Inc.
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5 */
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8 #ifndef _NGX_HTTP_VARIABLES_H_INCLUDED_
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9 #define _NGX_HTTP_VARIABLES_H_INCLUDED_
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12 #include <ngx_config.h>
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13 #include <ngx_core.h>
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14 #include <ngx_http.h>
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16
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17 typedef ngx_variable_value_t ngx_http_variable_value_t;
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18
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19 #define ngx_http_variable(v) { sizeof(v) - 1, 1, 0, 0, 0, (u_char *) v }
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21 typedef struct ngx_http_variable_s ngx_http_variable_t;
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23 typedef void (*ngx_http_set_variable_pt) (ngx_http_request_t *r,
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24 ngx_http_variable_value_t *v, uintptr_t data);
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25 typedef ngx_int_t (*ngx_http_get_variable_pt) (ngx_http_request_t *r,
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26 ngx_http_variable_value_t *v, uintptr_t data);
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28
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29 #define NGX_HTTP_VAR_CHANGEABLE 1
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30 #define NGX_HTTP_VAR_NOCACHEABLE 2
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31 #define NGX_HTTP_VAR_INDEXED 4
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32 #define NGX_HTTP_VAR_NOHASH 8
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34
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35 struct ngx_http_variable_s {
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36 ngx_str_t name; /* must be first to build the hash */
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37 ngx_http_set_variable_pt set_handler;
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38 ngx_http_get_variable_pt get_handler;
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39 uintptr_t data;
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40 ngx_uint_t flags;
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41 ngx_uint_t index;
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42 };
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45 ngx_http_variable_t *ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name,
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46 ngx_uint_t flags);
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47 ngx_int_t ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name);
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48 ngx_http_variable_value_t *ngx_http_get_indexed_variable(ngx_http_request_t *r,
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49 ngx_uint_t index);
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50 ngx_http_variable_value_t *ngx_http_get_flushed_variable(ngx_http_request_t *r,
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51 ngx_uint_t index);
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52
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53 ngx_http_variable_value_t *ngx_http_get_variable(ngx_http_request_t *r,
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54 ngx_str_t *name, ngx_uint_t key);
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56 ngx_int_t ngx_http_variable_unknown_header(ngx_http_variable_value_t *v,
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57 ngx_str_t *var, ngx_list_part_t *part, size_t prefix);
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60 #define ngx_http_clear_variable(r, index) r->variables0[index].text.data = NULL;
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63 #if (NGX_PCRE)
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65 typedef struct {
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66 ngx_uint_t capture;
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67 ngx_int_t index;
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68 } ngx_http_regex_variable_t;
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71 typedef struct {
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72 ngx_regex_t *regex;
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73 ngx_uint_t ncaptures;
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74 ngx_http_regex_variable_t *variables;
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75 ngx_uint_t nvariables;
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76 ngx_str_t name;
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77 } ngx_http_regex_t;
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78
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79
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80 typedef struct {
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81 ngx_http_regex_t *regex;
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82 void *value;
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83 } ngx_http_map_regex_t;
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84
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86 ngx_http_regex_t *ngx_http_regex_compile(ngx_conf_t *cf,
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87 ngx_regex_compile_t *rc);
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88 ngx_int_t ngx_http_regex_exec(ngx_http_request_t *r, ngx_http_regex_t *re,
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89 ngx_str_t *s);
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90
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91 #endif
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94 typedef struct {
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95 ngx_hash_combined_t hash;
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96 #if (NGX_PCRE)
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97 ngx_http_map_regex_t *regex;
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98 ngx_uint_t nregex;
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99 #endif
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100 } ngx_http_map_t;
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101
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102
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103 void *ngx_http_map_find(ngx_http_request_t *r, ngx_http_map_t *map,
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104 ngx_str_t *match);
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107 ngx_int_t ngx_http_variables_add_core_vars(ngx_conf_t *cf);
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108 ngx_int_t ngx_http_variables_init_vars(ngx_conf_t *cf);
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110
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111 extern ngx_http_variable_value_t ngx_http_variable_null_value;
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112 extern ngx_http_variable_value_t ngx_http_variable_true_value;
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115 #endif /* _NGX_HTTP_VARIABLES_H_INCLUDED_ */