Mercurial > hg > nginx-quic
annotate src/http/ngx_http_variables.h @ 4668:ba2c7463ce18 stable-1.2
Merge of r4614, r4624-r4629, r4631: proxy recursive changes.
*) Added IPv6 and UNIX-domain socket support in "debug_connection"
directive.
*) New function ngx_http_get_forwarded_addr() to look up real client
address.
On input it takes an original address, string in the X-Forwarded-For format
and its length, list of trusted proxies, and a flag indicating to perform
the recursive search. On output it returns NGX_OK and the "deepest" valid
address in a chain, or NGX_DECLINED. It supports AF_INET and AF_INET6.
Additionally, original address and/or proxy may be specified as AF_UNIX.
*) Realip: chains of trusted proxies and IPv6 support.
The module now supports recursive search of client address through
the chain of trusted proxies, controlled by the "real_ip_recursive"
directive (closes #2). It also gets full IPv6 support (closes #44)
and canonical value of the $client_addr variable on address change.
Example:
real_ip_header X-Forwarded-For;
set_real_ip_from 127.0.0.0/8;
set_real_ip_from ::1;
set_real_ip_from unix:;
real_ip_recursive on;
*) Geo: chains of trusted proxies and partial IPv6 support.
The module now supports recursive search of client address through
the chain of trusted proxies, controlled by the "proxy_recursive"
directive in the "geo" block. It also gets partial IPv6 support:
now proxies may be specified with IPv6 addresses.
Example:
geo $test {
...
proxy 127.0.0.1;
proxy ::1;
proxy_recursive;
}
There's also a slight change in behavior. When original client
address (as specified by the "geo" directive) is one of the
trusted proxies, and the value of the X-Forwarded-For request
header cannot not be parsed as a valid address, an original client
address will be used for lookup. Previously, 255.255.255.255 was
used in this case.
*) Geoip: trusted proxies support and partial IPv6 support.
The module now supports recursive search of client address through the
chain of trusted proxies (closes #100), in the same scope as the geo
module. Proxies are listed by the "geoip_proxy" directive, recursive
search is enabled by the "geoip_proxy_recursive" directive. IPv6 is
partially supported: proxies may be specified with IPv6 addresses.
Example:
geoip_country .../GeoIP.dat;
geoip_proxy 127.0.0.1;
geoip_proxy ::1;
geoip_proxy 10.0.0.0/8;
geoip_proxy_recursive on;
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 04 Jun 2012 11:58:12 +0000 |
parents | d620f497c50f |
children | a33b8c3aa975 |
rev | line source |
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499 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
499 | 5 */ |
6 | |
7 | |
8 #ifndef _NGX_HTTP_VARIABLES_H_INCLUDED_ | |
9 #define _NGX_HTTP_VARIABLES_H_INCLUDED_ | |
10 | |
11 | |
12 #include <ngx_config.h> | |
13 #include <ngx_core.h> | |
14 #include <ngx_http.h> | |
15 | |
16 | |
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17 typedef ngx_variable_value_t ngx_http_variable_value_t; |
499 | 18 |
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19 #define ngx_http_variable(v) { sizeof(v) - 1, 1, 0, 0, 0, (u_char *) v } |
573 | 20 |
499 | 21 typedef struct ngx_http_variable_s ngx_http_variable_t; |
22 | |
637 | 23 typedef void (*ngx_http_set_variable_pt) (ngx_http_request_t *r, |
24 ngx_http_variable_value_t *v, uintptr_t data); | |
573 | 25 typedef ngx_int_t (*ngx_http_get_variable_pt) (ngx_http_request_t *r, |
26 ngx_http_variable_value_t *v, uintptr_t data); | |
499 | 27 |
28 | |
1565 | 29 #define NGX_HTTP_VAR_CHANGEABLE 1 |
30 #define NGX_HTTP_VAR_NOCACHEABLE 2 | |
31 #define NGX_HTTP_VAR_INDEXED 4 | |
32 #define NGX_HTTP_VAR_NOHASH 8 | |
509 | 33 |
34 | |
499 | 35 struct ngx_http_variable_s { |
573 | 36 ngx_str_t name; /* must be first to build the hash */ |
637 | 37 ngx_http_set_variable_pt set_handler; |
38 ngx_http_get_variable_pt get_handler; | |
573 | 39 uintptr_t data; |
40 ngx_uint_t flags; | |
41 ngx_uint_t index; | |
499 | 42 }; |
43 | |
44 | |
501 | 45 ngx_http_variable_t *ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, |
509 | 46 ngx_uint_t flags); |
47 ngx_int_t ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name); | |
499 | 48 ngx_http_variable_value_t *ngx_http_get_indexed_variable(ngx_http_request_t *r, |
49 ngx_uint_t index); | |
573 | 50 ngx_http_variable_value_t *ngx_http_get_flushed_variable(ngx_http_request_t *r, |
51 ngx_uint_t index); | |
52 | |
499 | 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); |
509 | 55 |
1162 | 56 ngx_int_t ngx_http_variable_unknown_header(ngx_http_variable_value_t *v, |
57 ngx_str_t *var, ngx_list_part_t *part, size_t prefix); | |
58 | |
59 | |
573 | 60 #define ngx_http_clear_variable(r, index) r->variables0[index].text.data = NULL; |
61 | |
62 | |
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63 #if (NGX_PCRE) |
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64 |
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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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69 |
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70 |
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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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85 |
3325 | 86 ngx_http_regex_t *ngx_http_regex_compile(ngx_conf_t *cf, |
87 ngx_regex_compile_t *rc); | |
88 ngx_int_t ngx_http_regex_exec(ngx_http_request_t *r, ngx_http_regex_t *re, | |
89 ngx_str_t *s); | |
90 | |
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91 #endif |
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92 |
3325 | 93 |
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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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105 |
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106 |
509 | 107 ngx_int_t ngx_http_variables_add_core_vars(ngx_conf_t *cf); |
108 ngx_int_t ngx_http_variables_init_vars(ngx_conf_t *cf); | |
499 | 109 |
110 | |
577 | 111 extern ngx_http_variable_value_t ngx_http_variable_null_value; |
112 extern ngx_http_variable_value_t ngx_http_variable_true_value; | |
113 | |
114 | |
499 | 115 #endif /* _NGX_HTTP_VARIABLES_H_INCLUDED_ */ |