Mercurial > hg > nginx
annotate src/http/modules/ngx_http_geoip_module.c @ 3736:257785918797
$geoip_dma_code and $geoip_area_code
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Tue, 03 Aug 2010 14:19:49 +0000 |
| parents | 236634d2b603 |
| children | 18ae5f09a53d |
| rev | line source |
|---|---|
| 2985 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4 */ | |
| 5 | |
| 6 | |
| 7 #include <ngx_config.h> | |
| 8 #include <ngx_core.h> | |
| 9 #include <ngx_http.h> | |
| 10 | |
| 11 #include <GeoIP.h> | |
| 12 #include <GeoIPCity.h> | |
| 13 | |
| 14 | |
| 15 typedef struct { | |
| 16 GeoIP *country; | |
| 17 GeoIP *city; | |
| 18 } ngx_http_geoip_conf_t; | |
| 19 | |
| 20 | |
| 21 typedef struct { | |
| 22 ngx_str_t *name; | |
| 23 uintptr_t data; | |
| 24 } ngx_http_geoip_var_t; | |
| 25 | |
| 26 | |
| 27 typedef const char *(*ngx_http_geoip_variable_handler_pt)(GeoIP *, u_long addr); | |
| 28 | |
| 29 static ngx_int_t ngx_http_geoip_country_variable(ngx_http_request_t *r, | |
| 30 ngx_http_variable_value_t *v, uintptr_t data); | |
| 31 static ngx_int_t ngx_http_geoip_city_variable(ngx_http_request_t *r, | |
| 32 ngx_http_variable_value_t *v, uintptr_t data); | |
|
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33 static ngx_int_t ngx_http_geoip_city_float_variable(ngx_http_request_t *r, |
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34 ngx_http_variable_value_t *v, uintptr_t data); |
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35 static ngx_int_t ngx_http_geoip_city_int_variable(ngx_http_request_t *r, |
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36 ngx_http_variable_value_t *v, uintptr_t data); |
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37 static GeoIPRecord *ngx_http_geoip_get_city_record(ngx_http_request_t *r); |
| 2985 | 38 |
| 39 static ngx_int_t ngx_http_geoip_add_variables(ngx_conf_t *cf); | |
| 40 static void *ngx_http_geoip_create_conf(ngx_conf_t *cf); | |
| 41 static char *ngx_http_geoip_country(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 42 void *conf); | |
| 43 static char *ngx_http_geoip_city(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 44 void *conf); | |
| 45 static void ngx_http_geoip_cleanup(void *data); | |
| 46 | |
| 47 | |
| 48 static ngx_command_t ngx_http_geoip_commands[] = { | |
| 49 | |
| 50 { ngx_string("geoip_country"), | |
| 51 NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, | |
| 52 ngx_http_geoip_country, | |
| 53 NGX_HTTP_MAIN_CONF_OFFSET, | |
| 54 0, | |
| 55 NULL }, | |
| 56 | |
| 57 { ngx_string("geoip_city"), | |
| 58 NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, | |
| 59 ngx_http_geoip_city, | |
| 60 NGX_HTTP_MAIN_CONF_OFFSET, | |
| 61 0, | |
| 62 NULL }, | |
| 63 | |
| 64 ngx_null_command | |
| 65 }; | |
| 66 | |
| 67 | |
| 68 static ngx_http_module_t ngx_http_geoip_module_ctx = { | |
| 69 ngx_http_geoip_add_variables, /* preconfiguration */ | |
| 70 NULL, /* postconfiguration */ | |
| 71 | |
| 72 ngx_http_geoip_create_conf, /* create main configuration */ | |
| 73 NULL, /* init main configuration */ | |
| 74 | |
| 75 NULL, /* create server configuration */ | |
| 76 NULL, /* merge server configuration */ | |
| 77 | |
| 78 NULL, /* create location configuration */ | |
| 79 NULL /* merge location configuration */ | |
| 80 }; | |
| 81 | |
| 82 | |
| 83 ngx_module_t ngx_http_geoip_module = { | |
| 84 NGX_MODULE_V1, | |
| 85 &ngx_http_geoip_module_ctx, /* module context */ | |
| 86 ngx_http_geoip_commands, /* module directives */ | |
| 87 NGX_HTTP_MODULE, /* module type */ | |
| 88 NULL, /* init master */ | |
| 89 NULL, /* init module */ | |
| 90 NULL, /* init process */ | |
| 91 NULL, /* init thread */ | |
| 92 NULL, /* exit thread */ | |
| 93 NULL, /* exit process */ | |
| 94 NULL, /* exit master */ | |
| 95 NGX_MODULE_V1_PADDING | |
| 96 }; | |
| 97 | |
| 98 | |
| 99 static ngx_http_variable_t ngx_http_geoip_vars[] = { | |
| 100 | |
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101 { ngx_string("geoip_country_code"), NULL, |
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102 ngx_http_geoip_country_variable, |
| 2985 | 103 (uintptr_t) GeoIP_country_code_by_ipnum, 0, 0 }, |
| 104 | |
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105 { ngx_string("geoip_country_code3"), NULL, |
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106 ngx_http_geoip_country_variable, |
| 2985 | 107 (uintptr_t) GeoIP_country_code3_by_ipnum, 0, 0 }, |
| 108 | |
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109 { ngx_string("geoip_country_name"), NULL, |
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110 ngx_http_geoip_country_variable, |
| 2985 | 111 (uintptr_t) GeoIP_country_name_by_ipnum, 0, 0 }, |
| 112 | |
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113 { ngx_string("geoip_city_continent_code"), NULL, |
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114 ngx_http_geoip_city_variable, |
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115 offsetof(GeoIPRecord, continent_code), 0, 0 }, |
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116 |
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117 { ngx_string("geoip_city_country_code"), NULL, |
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118 ngx_http_geoip_city_variable, |
| 2985 | 119 offsetof(GeoIPRecord, country_code), 0, 0 }, |
| 120 | |
| 121 { ngx_string("geoip_city_country_code3"), NULL, | |
| 122 ngx_http_geoip_city_variable, | |
| 123 offsetof(GeoIPRecord, country_code3), 0, 0 }, | |
| 124 | |
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125 { ngx_string("geoip_city_country_name"), NULL, |
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126 ngx_http_geoip_city_variable, |
| 2985 | 127 offsetof(GeoIPRecord, country_name), 0, 0 }, |
| 128 | |
| 129 { ngx_string("geoip_region"), NULL, | |
| 130 ngx_http_geoip_city_variable, | |
| 131 offsetof(GeoIPRecord, region), 0, 0 }, | |
| 132 | |
| 133 { ngx_string("geoip_city"), NULL, | |
| 134 ngx_http_geoip_city_variable, | |
| 135 offsetof(GeoIPRecord, city), 0, 0 }, | |
| 136 | |
| 137 { ngx_string("geoip_postal_code"), NULL, | |
| 138 ngx_http_geoip_city_variable, | |
| 139 offsetof(GeoIPRecord, postal_code), 0, 0 }, | |
| 140 | |
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141 { ngx_string("geoip_latitude"), NULL, |
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142 ngx_http_geoip_city_float_variable, |
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143 offsetof(GeoIPRecord, latitude), 0, 0 }, |
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144 |
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145 { ngx_string("geoip_longitude"), NULL, |
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146 ngx_http_geoip_city_float_variable, |
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147 offsetof(GeoIPRecord, longitude), 0, 0 }, |
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148 |
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149 { ngx_string("geoip_dma_code"), NULL, |
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150 ngx_http_geoip_city_int_variable, |
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151 offsetof(GeoIPRecord, dma_code), 0, 0 }, |
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152 |
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153 { ngx_string("geoip_area_code"), NULL, |
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154 ngx_http_geoip_city_int_variable, |
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155 offsetof(GeoIPRecord, area_code), 0, 0 }, |
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156 |
| 2985 | 157 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
| 158 }; | |
| 159 | |
| 160 | |
| 161 static ngx_int_t | |
| 162 ngx_http_geoip_country_variable(ngx_http_request_t *r, | |
| 163 ngx_http_variable_value_t *v, uintptr_t data) | |
| 164 { | |
| 165 ngx_http_geoip_variable_handler_pt handler = | |
| 166 (ngx_http_geoip_variable_handler_pt) data; | |
| 167 | |
| 168 u_long addr; | |
| 169 const char *val; | |
| 170 struct sockaddr_in *sin; | |
| 171 ngx_http_geoip_conf_t *gcf; | |
| 172 | |
| 173 gcf = ngx_http_get_module_main_conf(r, ngx_http_geoip_module); | |
| 174 | |
| 175 if (gcf->country == NULL) { | |
| 176 goto not_found; | |
| 177 } | |
| 178 | |
| 179 if (r->connection->sockaddr->sa_family != AF_INET) { | |
| 180 goto not_found; | |
| 181 } | |
| 182 | |
| 183 sin = (struct sockaddr_in *) r->connection->sockaddr; | |
| 184 addr = ntohl(sin->sin_addr.s_addr); | |
| 185 | |
| 186 val = handler(gcf->country, addr); | |
| 187 | |
| 188 if (val == NULL) { | |
| 189 goto not_found; | |
| 190 } | |
| 191 | |
| 192 v->len = ngx_strlen(val); | |
| 193 v->valid = 1; | |
| 194 v->no_cacheable = 0; | |
| 195 v->not_found = 0; | |
| 196 v->data = (u_char *) val; | |
| 197 | |
| 198 return NGX_OK; | |
| 199 | |
| 200 not_found: | |
| 201 | |
| 202 v->not_found = 1; | |
| 203 | |
| 204 return NGX_OK; | |
| 205 } | |
| 206 | |
| 207 | |
| 208 static ngx_int_t | |
| 209 ngx_http_geoip_city_variable(ngx_http_request_t *r, | |
| 210 ngx_http_variable_value_t *v, uintptr_t data) | |
| 211 { | |
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212 char *val; |
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213 size_t len; |
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214 GeoIPRecord *gr; |
| 2985 | 215 |
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216 gr = ngx_http_geoip_get_city_record(r); |
| 2985 | 217 if (gr == NULL) { |
| 218 goto not_found; | |
| 219 } | |
| 220 | |
| 221 val = *(char **) ((char *) gr + data); | |
| 222 if (val == NULL) { | |
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223 goto no_value; |
| 2985 | 224 } |
| 225 | |
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226 len = ngx_strlen(val); |
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227 v->data = ngx_pnalloc(r->pool, len); |
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228 |
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229 if (v->data == NULL) { |
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230 GeoIPRecord_delete(gr); |
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231 return NGX_ERROR; |
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232 } |
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233 |
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234 ngx_memcpy(v->data, val, len); |
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235 |
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236 v->len = len; |
| 2985 | 237 v->valid = 1; |
| 238 v->no_cacheable = 0; | |
| 239 v->not_found = 0; | |
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240 |
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241 GeoIPRecord_delete(gr); |
| 2985 | 242 |
| 243 return NGX_OK; | |
| 244 | |
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245 no_value: |
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246 |
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247 GeoIPRecord_delete(gr); |
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248 |
| 2985 | 249 not_found: |
| 250 | |
| 251 v->not_found = 1; | |
| 252 | |
| 253 return NGX_OK; | |
| 254 } | |
| 255 | |
| 256 | |
| 257 static ngx_int_t | |
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258 ngx_http_geoip_city_float_variable(ngx_http_request_t *r, |
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259 ngx_http_variable_value_t *v, uintptr_t data) |
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260 { |
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261 float val; |
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262 GeoIPRecord *gr; |
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263 |
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264 gr = ngx_http_geoip_get_city_record(r); |
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265 if (gr == NULL) { |
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266 v->not_found = 1; |
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267 return NGX_OK; |
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268 } |
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269 |
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270 v->data = ngx_pnalloc(r->pool, NGX_INT64_LEN + 5); |
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271 if (v->data == NULL) { |
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272 GeoIPRecord_delete(gr); |
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273 return NGX_ERROR; |
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274 } |
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275 |
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276 val = *(float *) ((char *) gr + data); |
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277 |
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278 v->len = ngx_sprintf(v->data, "%.4f", val) - v->data; |
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279 |
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280 GeoIPRecord_delete(gr); |
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281 |
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282 return NGX_OK; |
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283 } |
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284 |
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285 |
|
3736
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286 static ngx_int_t |
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287 ngx_http_geoip_city_int_variable(ngx_http_request_t *r, |
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288 ngx_http_variable_value_t *v, uintptr_t data) |
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289 { |
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290 int val; |
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291 GeoIPRecord *gr; |
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292 |
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293 gr = ngx_http_geoip_get_city_record(r); |
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294 if (gr == NULL) { |
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295 v->not_found = 1; |
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296 return NGX_OK; |
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297 } |
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298 |
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299 v->data = ngx_pnalloc(r->pool, NGX_INT64_LEN); |
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300 if (v->data == NULL) { |
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301 GeoIPRecord_delete(gr); |
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302 return NGX_ERROR; |
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303 } |
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304 |
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305 val = *(int *) ((char *) gr + data); |
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306 |
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307 v->len = ngx_sprintf(v->data, "%d", val) - v->data; |
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308 |
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309 GeoIPRecord_delete(gr); |
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310 |
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311 return NGX_OK; |
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312 } |
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313 |
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314 |
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315 static GeoIPRecord * |
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316 ngx_http_geoip_get_city_record(ngx_http_request_t *r) |
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317 { |
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318 u_long addr; |
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319 struct sockaddr_in *sin; |
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320 ngx_http_geoip_conf_t *gcf; |
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321 |
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322 gcf = ngx_http_get_module_main_conf(r, ngx_http_geoip_module); |
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323 |
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324 if (gcf->city && r->connection->sockaddr->sa_family == AF_INET) { |
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325 |
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326 sin = (struct sockaddr_in *) r->connection->sockaddr; |
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327 addr = ntohl(sin->sin_addr.s_addr); |
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328 |
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329 return GeoIP_record_by_ipnum(gcf->city, addr); |
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330 } |
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331 |
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332 return NULL; |
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333 } |
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334 |
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335 |
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336 static ngx_int_t |
| 2985 | 337 ngx_http_geoip_add_variables(ngx_conf_t *cf) |
| 338 { | |
| 339 ngx_http_variable_t *var, *v; | |
| 340 | |
| 341 for (v = ngx_http_geoip_vars; v->name.len; v++) { | |
| 342 var = ngx_http_add_variable(cf, &v->name, v->flags); | |
| 343 if (var == NULL) { | |
| 344 return NGX_ERROR; | |
| 345 } | |
| 346 | |
| 347 var->get_handler = v->get_handler; | |
| 348 var->data = v->data; | |
| 349 } | |
| 350 | |
| 351 return NGX_OK; | |
| 352 } | |
| 353 | |
| 354 | |
| 355 static void * | |
| 356 ngx_http_geoip_create_conf(ngx_conf_t *cf) | |
| 357 { | |
| 358 ngx_pool_cleanup_t *cln; | |
| 359 ngx_http_geoip_conf_t *conf; | |
| 360 | |
| 361 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_geoip_conf_t)); | |
| 362 if (conf == NULL) { | |
| 363 return NULL; | |
| 364 } | |
| 365 | |
| 366 cln = ngx_pool_cleanup_add(cf->pool, 0); | |
| 367 if (cln == NULL) { | |
| 368 return NULL; | |
| 369 } | |
| 370 | |
| 371 cln->handler = ngx_http_geoip_cleanup; | |
| 372 cln->data = conf; | |
| 373 | |
| 374 return conf; | |
| 375 } | |
| 376 | |
| 377 | |
| 378 static char * | |
| 379 ngx_http_geoip_country(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 380 { | |
| 381 ngx_http_geoip_conf_t *gcf = conf; | |
| 382 | |
| 383 ngx_str_t *value; | |
| 384 | |
| 385 if (gcf->country) { | |
| 386 return "is duplicate"; | |
| 387 } | |
| 388 | |
| 389 value = cf->args->elts; | |
| 390 | |
| 391 gcf->country = GeoIP_open((char *) value[1].data, GEOIP_MEMORY_CACHE); | |
| 392 | |
| 393 if (gcf->country == NULL) { | |
| 394 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 395 "GeoIO_open(\"%V\") failed", &value[1]); | |
| 396 | |
| 397 return NGX_CONF_ERROR; | |
| 398 } | |
| 399 | |
| 400 switch (gcf->country->databaseType) { | |
| 401 | |
| 402 case GEOIP_COUNTRY_EDITION: | |
| 403 case GEOIP_PROXY_EDITION: | |
| 404 case GEOIP_NETSPEED_EDITION: | |
| 405 | |
| 406 return NGX_CONF_OK; | |
| 407 | |
| 408 default: | |
| 409 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 410 "invalid GeoIP database \"%V\" type:%d", | |
| 411 &value[1], gcf->country->databaseType); | |
| 412 return NGX_CONF_ERROR; | |
| 413 } | |
| 414 } | |
| 415 | |
| 416 | |
| 417 static char * | |
| 418 ngx_http_geoip_city(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 419 { | |
| 420 ngx_http_geoip_conf_t *gcf = conf; | |
| 421 | |
| 422 ngx_str_t *value; | |
| 423 | |
| 424 if (gcf->city) { | |
| 425 return "is duplicate"; | |
| 426 } | |
| 427 | |
| 428 value = cf->args->elts; | |
| 429 | |
| 430 gcf->city = GeoIP_open((char *) value[1].data, GEOIP_MEMORY_CACHE); | |
| 431 | |
| 432 if (gcf->city == NULL) { | |
| 433 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 434 "GeoIO_open(\"%V\") failed", &value[1]); | |
| 435 | |
| 436 return NGX_CONF_ERROR; | |
| 437 } | |
| 438 | |
| 439 switch (gcf->city->databaseType) { | |
| 440 | |
| 441 case GEOIP_CITY_EDITION_REV0: | |
| 442 case GEOIP_CITY_EDITION_REV1: | |
| 443 | |
| 444 return NGX_CONF_OK; | |
| 445 | |
| 446 default: | |
| 447 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 448 "invalid GeoIP City database \"%V\" type:%d", | |
| 449 &value[1], gcf->city->databaseType); | |
| 450 return NGX_CONF_ERROR; | |
| 451 } | |
| 452 } | |
| 453 | |
| 454 | |
| 455 static void | |
| 456 ngx_http_geoip_cleanup(void *data) | |
| 457 { | |
| 458 ngx_http_geoip_conf_t *gcf = data; | |
| 459 | |
| 460 if (gcf->country) { | |
| 461 GeoIP_delete(gcf->country); | |
| 462 } | |
| 463 | |
| 464 if (gcf->city) { | |
| 465 GeoIP_delete(gcf->city); | |
| 466 } | |
| 467 } |