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annotate src/http/modules/ngx_http_realip_module.c @ 2257:74d270c8821e

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real_ip_header supports any header
author Igor Sysoev <igor@sysoev.ru>
date Thu, 25 Sep 2008 19:51:56 +0000
parents 2300ab9b069e
children 2e91aecb9e57
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_http.h>
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10
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11
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12 #define NGX_HTTP_REALIP_XREALIP 0
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13 #define NGX_HTTP_REALIP_XFWD 1
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14 #define NGX_HTTP_REALIP_HEADER 2
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15
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16
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17 /* AF_INET only */
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18
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19 typedef struct {
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20 in_addr_t mask;
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21 in_addr_t addr;
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22 } ngx_http_realip_from_t;
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25 typedef struct {
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26 ngx_array_t *from; /* array of ngx_http_realip_from_t */
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27 ngx_uint_t type;
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28 ngx_uint_t hash;
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29 ngx_str_t header;
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30 } ngx_http_realip_loc_conf_t;
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31
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32
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33 typedef struct {
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34 ngx_connection_t *connection;
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35 in_addr_t addr;
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36 ngx_str_t addr_text;
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37 } ngx_http_realip_ctx_t;
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38
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39
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40 static ngx_int_t ngx_http_realip_handler(ngx_http_request_t *r);
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41 static void ngx_http_realip_cleanup(void *data);
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42 static char *ngx_http_realip_from(ngx_conf_t *cf, ngx_command_t *cmd,
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43 void *conf);
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44 static char *ngx_http_realip(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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45 static void *ngx_http_realip_create_loc_conf(ngx_conf_t *cf);
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46 static char *ngx_http_realip_merge_loc_conf(ngx_conf_t *cf,
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47 void *parent, void *child);
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48 static ngx_int_t ngx_http_realip_init(ngx_conf_t *cf);
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50
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51 static ngx_command_t ngx_http_realip_commands[] = {
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52
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53 { ngx_string("set_real_ip_from"),
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54 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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55 ngx_http_realip_from,
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56 NGX_HTTP_LOC_CONF_OFFSET,
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57 0,
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58 NULL },
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59
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60 { ngx_string("real_ip_header"),
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61 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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62 ngx_http_realip,
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63 NGX_HTTP_LOC_CONF_OFFSET,
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64 0,
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65 NULL },
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66
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67 ngx_null_command
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68 };
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71
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72 static ngx_http_module_t ngx_http_realip_module_ctx = {
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73 NULL, /* preconfiguration */
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74 ngx_http_realip_init, /* postconfiguration */
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75
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76 NULL, /* create main configuration */
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77 NULL, /* init main configuration */
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78
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79 NULL, /* create server configuration */
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80 NULL, /* merge server configuration */
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81
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82 ngx_http_realip_create_loc_conf, /* create location configuration */
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83 ngx_http_realip_merge_loc_conf /* merge location configuration */
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84 };
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85
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86
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87 ngx_module_t ngx_http_realip_module = {
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88 NGX_MODULE_V1,
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89 &ngx_http_realip_module_ctx, /* module context */
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90 ngx_http_realip_commands, /* module directives */
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91 NGX_HTTP_MODULE, /* module type */
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92 NULL, /* init master */
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93 NULL, /* init module */
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94 NULL, /* init process */
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95 NULL, /* init thread */
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96 NULL, /* exit thread */
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97 NULL, /* exit process */
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98 NULL, /* exit master */
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99 NGX_MODULE_V1_PADDING
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100 };
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101
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102
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103 static ngx_int_t
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104 ngx_http_realip_handler(ngx_http_request_t *r)
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105 {
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106 u_char *ip, *p;
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107 size_t len;
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108 in_addr_t addr;
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109 ngx_uint_t i, hash;
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110 ngx_list_part_t *part;
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111 ngx_table_elt_t *header;
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112 struct sockaddr_in *sin;
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113 ngx_connection_t *c;
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114 ngx_pool_cleanup_t *cln;
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115 ngx_http_realip_ctx_t *ctx;
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116 ngx_http_realip_from_t *from;
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117 ngx_http_realip_loc_conf_t *rlcf;
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118
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119 ctx = ngx_http_get_module_ctx(r, ngx_http_realip_module);
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120
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121 if (ctx) {
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122 return NGX_DECLINED;
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123 }
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124
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125 cln = ngx_pool_cleanup_add(r->pool, sizeof(ngx_http_realip_ctx_t));
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126 if (cln == NULL) {
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127 return NGX_HTTP_INTERNAL_SERVER_ERROR;
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128 }
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129
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130 rlcf = ngx_http_get_module_loc_conf(r, ngx_http_realip_module);
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131
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132 if (rlcf->from == NULL) {
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133 return NGX_DECLINED;
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134 }
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135
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136 switch (rlcf->type) {
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137
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138 case NGX_HTTP_REALIP_XREALIP:
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139
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140 if (r->headers_in.x_real_ip == NULL) {
986
68c85f283043 ngx_http_realip_module must return NGX_DECLINED
Igor Sysoev <igor@sysoev.ru>
parents: 681
diff changeset
141 return NGX_DECLINED;
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
142 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
143
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
144 len = r->headers_in.x_real_ip->value.len;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
145 ip = r->headers_in.x_real_ip->value.data;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
146
2257
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
147 break;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
148
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
149 case NGX_HTTP_REALIP_XFWD:
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
150
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
151 if (r->headers_in.x_forwarded_for == NULL) {
986
68c85f283043 ngx_http_realip_module must return NGX_DECLINED
Igor Sysoev <igor@sysoev.ru>
parents: 681
diff changeset
152 return NGX_DECLINED;
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
153 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
154
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
155 len = r->headers_in.x_forwarded_for->value.len;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
156 ip = r->headers_in.x_forwarded_for->value.data;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
157
1114
3f354952e91d fix broken values, debug logging, and style fix
Igor Sysoev <igor@sysoev.ru>
parents: 986
diff changeset
158 for (p = ip + len - 1; p > ip; p--) {
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
159 if (*p == ' ' || *p == ',') {
1114
3f354952e91d fix broken values, debug logging, and style fix
Igor Sysoev <igor@sysoev.ru>
parents: 986
diff changeset
160 p++;
3f354952e91d fix broken values, debug logging, and style fix
Igor Sysoev <igor@sysoev.ru>
parents: 986
diff changeset
161 len -= p - ip;
3f354952e91d fix broken values, debug logging, and style fix
Igor Sysoev <igor@sysoev.ru>
parents: 986
diff changeset
162 ip = p;
3f354952e91d fix broken values, debug logging, and style fix
Igor Sysoev <igor@sysoev.ru>
parents: 986
diff changeset
163 break;
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
164 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
165 }
2257
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
166
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
167 break;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
168
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
169 default: /* NGX_HTTP_REALIP_HEADER */
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
170
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
171 part = &r->headers_in.headers.part;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
172 header = part->elts;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
173
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
174 hash = rlcf->hash;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
175 len = rlcf->header.len;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
176 p = rlcf->header.data;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
177
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
178 for (i = 0; /* void */ ; i++) {
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
179
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
180 if (i >= part->nelts) {
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
181 if (part->next == NULL) {
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
182 break;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
183 }
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
184
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
185 part = part->next;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
186 header = part->elts;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
187 i = 0;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
188 }
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
189
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
190 if (hash == header[i].hash
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
191 && len == header[i].key.len
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
192 && ngx_strncmp(p, header[i].lowcase_key, len) == 0)
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
193 {
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
194 len = header[i].value.len;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
195 ip = header[i].value.data;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
196
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
197 goto found;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
198 }
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
199 }
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
200
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
201 return NGX_DECLINED;
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
202 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
203
2257
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
204 found:
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
205
2176
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
206 c = r->connection;
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
207
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
208 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "realip: \"%s\"", ip);
1114
3f354952e91d fix broken values, debug logging, and style fix
Igor Sysoev <igor@sysoev.ru>
parents: 986
diff changeset
209
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
210 /* AF_INET only */
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
211
2176
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
212 sin = (struct sockaddr_in *) c->sockaddr;
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
213
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
214 from = rlcf->from->elts;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
215 for (i = 0; i < rlcf->from->nelts; i++) {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
216
2176
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
217 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
218 "realip: %08XD %08XD %08XD",
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
219 sin->sin_addr.s_addr, from[i].mask, from[i].addr);
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
220
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
221 if ((sin->sin_addr.s_addr & from[i].mask) == from[i].addr) {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
222
2176
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
223 ctx = cln->data;
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
224
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
225 ngx_http_set_ctx(r, ctx, ngx_http_realip_module);
1114
3f354952e91d fix broken values, debug logging, and style fix
Igor Sysoev <igor@sysoev.ru>
parents: 986
diff changeset
226
3f354952e91d fix broken values, debug logging, and style fix
Igor Sysoev <igor@sysoev.ru>
parents: 986
diff changeset
227 addr = inet_addr((char *) ip);
3f354952e91d fix broken values, debug logging, and style fix
Igor Sysoev <igor@sysoev.ru>
parents: 986
diff changeset
228
3f354952e91d fix broken values, debug logging, and style fix
Igor Sysoev <igor@sysoev.ru>
parents: 986
diff changeset
229 if (addr == INADDR_NONE) {
3f354952e91d fix broken values, debug logging, and style fix
Igor Sysoev <igor@sysoev.ru>
parents: 986
diff changeset
230 return NGX_DECLINED;
3f354952e91d fix broken values, debug logging, and style fix
Igor Sysoev <igor@sysoev.ru>
parents: 986
diff changeset
231 }
3f354952e91d fix broken values, debug logging, and style fix
Igor Sysoev <igor@sysoev.ru>
parents: 986
diff changeset
232
2176
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
233 p = ngx_pnalloc(c->pool, len);
1118
cec2866f29bd a client address must be allocated from a connection pool
Igor Sysoev <igor@sysoev.ru>
parents: 1114
diff changeset
234 if (p == NULL) {
cec2866f29bd a client address must be allocated from a connection pool
Igor Sysoev <igor@sysoev.ru>
parents: 1114
diff changeset
235 return NGX_HTTP_INTERNAL_SERVER_ERROR;
cec2866f29bd a client address must be allocated from a connection pool
Igor Sysoev <igor@sysoev.ru>
parents: 1114
diff changeset
236 }
cec2866f29bd a client address must be allocated from a connection pool
Igor Sysoev <igor@sysoev.ru>
parents: 1114
diff changeset
237
cec2866f29bd a client address must be allocated from a connection pool
Igor Sysoev <igor@sysoev.ru>
parents: 1114
diff changeset
238 ngx_memcpy(p, ip, len);
cec2866f29bd a client address must be allocated from a connection pool
Igor Sysoev <igor@sysoev.ru>
parents: 1114
diff changeset
239
2176
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
240 cln->handler = ngx_http_realip_cleanup;
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
241
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
242 ctx->connection = c;
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
243 ctx->addr = sin->sin_addr.s_addr;
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
244 ctx->addr_text = c->addr_text;
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
245
1114
3f354952e91d fix broken values, debug logging, and style fix
Igor Sysoev <igor@sysoev.ru>
parents: 986
diff changeset
246 sin->sin_addr.s_addr = addr;
3f354952e91d fix broken values, debug logging, and style fix
Igor Sysoev <igor@sysoev.ru>
parents: 986
diff changeset
247
2176
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
248 c->addr_text.len = len;
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
249 c->addr_text.data = p;
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
250
986
68c85f283043 ngx_http_realip_module must return NGX_DECLINED
Igor Sysoev <igor@sysoev.ru>
parents: 681
diff changeset
251 return NGX_DECLINED;
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
252 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
253 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
254
986
68c85f283043 ngx_http_realip_module must return NGX_DECLINED
Igor Sysoev <igor@sysoev.ru>
parents: 681
diff changeset
255 return NGX_DECLINED;
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
256 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
257
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
258
2176
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
259 static void
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
260 ngx_http_realip_cleanup(void *data)
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
261 {
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
262 ngx_http_realip_ctx_t *ctx = data;
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
263
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
264 ngx_connection_t *c;
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
265 struct sockaddr_in *sin;
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
266
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
267 c = ctx->connection;
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
268
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
269 sin = (struct sockaddr_in *) c->sockaddr;
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
270 sin->sin_addr.s_addr = ctx->addr;
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
271
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
272 c->addr_text = ctx->addr_text;
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
273 }
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
274
29d26406e1bd restore connection address on request closure,
Igor Sysoev <igor@sysoev.ru>
parents: 2049
diff changeset
275
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
276 static char *
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
277 ngx_http_realip_from(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
278 {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
279 ngx_http_realip_loc_conf_t *rlcf = conf;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
280
2257
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
281 ngx_int_t rc;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
282 ngx_str_t *value;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
283 ngx_inet_cidr_t in_cidr;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
284 ngx_http_realip_from_t *from;
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
285
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
286 if (rlcf->from == NULL) {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
287 rlcf->from = ngx_array_create(cf->pool, 2,
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
288 sizeof(ngx_http_realip_from_t));
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
289 if (rlcf->from == NULL) {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
290 return NGX_CONF_ERROR;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
291 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
292 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
293
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
294 from = ngx_array_push(rlcf->from);
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
295 if (from == NULL) {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
296 return NGX_CONF_ERROR;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
297 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
298
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
299 value = cf->args->elts;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
300
1380
b590a528fd41 ignore meaningless bits in CIDR and warn about them
Igor Sysoev <igor@sysoev.ru>
parents: 1118
diff changeset
301 rc = ngx_ptocidr(&value[1], &in_cidr);
b590a528fd41 ignore meaningless bits in CIDR and warn about them
Igor Sysoev <igor@sysoev.ru>
parents: 1118
diff changeset
302
b590a528fd41 ignore meaningless bits in CIDR and warn about them
Igor Sysoev <igor@sysoev.ru>
parents: 1118
diff changeset
303 if (rc == NGX_ERROR) {
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
304 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameter \"%V\"",
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
305 &value[1]);
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
306 return NGX_CONF_ERROR;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
307 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
308
1380
b590a528fd41 ignore meaningless bits in CIDR and warn about them
Igor Sysoev <igor@sysoev.ru>
parents: 1118
diff changeset
309 if (rc == NGX_DONE) {
b590a528fd41 ignore meaningless bits in CIDR and warn about them
Igor Sysoev <igor@sysoev.ru>
parents: 1118
diff changeset
310 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
b590a528fd41 ignore meaningless bits in CIDR and warn about them
Igor Sysoev <igor@sysoev.ru>
parents: 1118
diff changeset
311 "low address bits of %V are meaningless", &value[1]);
b590a528fd41 ignore meaningless bits in CIDR and warn about them
Igor Sysoev <igor@sysoev.ru>
parents: 1118
diff changeset
312 }
b590a528fd41 ignore meaningless bits in CIDR and warn about them
Igor Sysoev <igor@sysoev.ru>
parents: 1118
diff changeset
313
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
314 from->mask = in_cidr.mask;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
315 from->addr = in_cidr.addr;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
316
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
317 return NGX_CONF_OK;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
318 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
319
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
320
2257
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
321 static char *
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
322 ngx_http_realip(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
323 {
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
324 ngx_http_realip_loc_conf_t *rlcf = conf;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
325
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
326 ngx_str_t *value;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
327
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
328 value = cf->args->elts;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
329
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
330 if (ngx_strcmp(value[1].data, "X-Real-IP") == 0) {
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
331 rlcf->type = NGX_HTTP_REALIP_XREALIP;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
332 return NGX_CONF_OK;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
333 }
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
334
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
335 if (ngx_strcmp(value[1].data, "X-Forwarded-For") == 0) {
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
336 rlcf->type = NGX_HTTP_REALIP_XFWD;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
337 return NGX_CONF_OK;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
338 }
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
339
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
340 rlcf->type = NGX_HTTP_REALIP_HEADER;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
341 rlcf->hash = ngx_hash_strlow(value[1].data, value[1].data, value[1].len);
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
342 rlcf->header = value[1];
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
343
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
344 return NGX_CONF_OK;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
345 }
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
346
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
347
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
348 static void *
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
349 ngx_http_realip_create_loc_conf(ngx_conf_t *cf)
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
350 {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
351 ngx_http_realip_loc_conf_t *conf;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
352
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
353 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_realip_loc_conf_t));
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
354 if (conf == NULL) {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
355 return NGX_CONF_ERROR;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
356 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
357
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
358 /*
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
359 * set by ngx_pcalloc():
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
360 *
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
361 * conf->from = NULL;
2257
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
362 * conf->hash = 0;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
363 * conf->header = { 0, NULL };
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
364 */
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
365
2257
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
366 conf->type = NGX_CONF_UNSET_UINT;
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
367
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
368 return conf;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
369 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
370
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
371
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
372 static char *
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
373 ngx_http_realip_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
374 {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
375 ngx_http_realip_loc_conf_t *prev = parent;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
376 ngx_http_realip_loc_conf_t *conf = child;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
377
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
378 if (conf->from == NULL) {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
379 conf->from = prev->from;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
380 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
381
2257
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
382 ngx_conf_merge_uint_value(conf->type, prev->type, NGX_HTTP_REALIP_XREALIP);
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
383
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
384 if (conf->header.len == 0) {
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
385 conf->hash = prev->hash;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
386 conf->header = prev->header;
74d270c8821e real_ip_header supports any header
Igor Sysoev <igor@sysoev.ru>
parents: 2202
diff changeset
387 }
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
388
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
389 return NGX_CONF_OK;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
390 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
391
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
392
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
393 static ngx_int_t
681
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 667
diff changeset
394 ngx_http_realip_init(ngx_conf_t *cf)
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
395 {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
396 ngx_http_handler_pt *h;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
397 ngx_http_core_main_conf_t *cmcf;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
398
681
7e24168b0853 nginx-0.4.0-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 667
diff changeset
399 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
400
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
401 h = ngx_array_push(&cmcf->phases[NGX_HTTP_POST_READ_PHASE].handlers);
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
402 if (h == NULL) {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
403 return NGX_ERROR;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
404 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
405
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
406 *h = ngx_http_realip_handler;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
407
581
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 573
diff changeset
408 h = ngx_array_push(&cmcf->phases[NGX_HTTP_PREACCESS_PHASE].handlers);
573
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
409 if (h == NULL) {
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
410 return NGX_ERROR;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
411 }
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
412
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
413 *h = ngx_http_realip_handler;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
414
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
415 return NGX_OK;
58475592100c nginx-0.3.8-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
416 }