Mercurial > hg > nginx
view src/http/modules/ngx_http_geoip_module.c @ 3379:0c517d0cabe0
backout r3315 and test r->header_only last, since it's not actually
frequent here: 304 and HEAD responses are not set it before the filter
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Mon, 07 Dec 2009 15:41:57 +0000 |
parents | 98a8336c5b7c |
children | 236634d2b603 |
line wrap: on
line source
/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_http.h> #include <GeoIP.h> #include <GeoIPCity.h> typedef struct { GeoIP *country; GeoIP *city; } ngx_http_geoip_conf_t; typedef struct { ngx_str_t *name; uintptr_t data; } ngx_http_geoip_var_t; typedef const char *(*ngx_http_geoip_variable_handler_pt)(GeoIP *, u_long addr); static ngx_int_t ngx_http_geoip_country_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); static ngx_int_t ngx_http_geoip_city_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); static ngx_int_t ngx_http_geoip_add_variables(ngx_conf_t *cf); static void *ngx_http_geoip_create_conf(ngx_conf_t *cf); static char *ngx_http_geoip_country(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_geoip_city(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static void ngx_http_geoip_cleanup(void *data); static ngx_command_t ngx_http_geoip_commands[] = { { ngx_string("geoip_country"), NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, ngx_http_geoip_country, NGX_HTTP_MAIN_CONF_OFFSET, 0, NULL }, { ngx_string("geoip_city"), NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, ngx_http_geoip_city, NGX_HTTP_MAIN_CONF_OFFSET, 0, NULL }, ngx_null_command }; static ngx_http_module_t ngx_http_geoip_module_ctx = { ngx_http_geoip_add_variables, /* preconfiguration */ NULL, /* postconfiguration */ ngx_http_geoip_create_conf, /* create main configuration */ NULL, /* init main configuration */ NULL, /* create server configuration */ NULL, /* merge server configuration */ NULL, /* create location configuration */ NULL /* merge location configuration */ }; ngx_module_t ngx_http_geoip_module = { NGX_MODULE_V1, &ngx_http_geoip_module_ctx, /* module context */ ngx_http_geoip_commands, /* module directives */ NGX_HTTP_MODULE, /* module type */ NULL, /* init master */ NULL, /* init module */ NULL, /* init process */ NULL, /* init thread */ NULL, /* exit thread */ NULL, /* exit process */ NULL, /* exit master */ NGX_MODULE_V1_PADDING }; static ngx_http_variable_t ngx_http_geoip_vars[] = { { ngx_string("geoip_country_code"), NULL, ngx_http_geoip_country_variable, (uintptr_t) GeoIP_country_code_by_ipnum, 0, 0 }, { ngx_string("geoip_country_code3"), NULL, ngx_http_geoip_country_variable, (uintptr_t) GeoIP_country_code3_by_ipnum, 0, 0 }, { ngx_string("geoip_country_name"), NULL, ngx_http_geoip_country_variable, (uintptr_t) GeoIP_country_name_by_ipnum, 0, 0 }, { ngx_string("geoip_city_country_code"), NULL, ngx_http_geoip_city_variable, offsetof(GeoIPRecord, country_code), 0, 0 }, { ngx_string("geoip_city_country_code3"), NULL, ngx_http_geoip_city_variable, offsetof(GeoIPRecord, country_code3), 0, 0 }, { ngx_string("geoip_city_country_name"), NULL, ngx_http_geoip_city_variable, offsetof(GeoIPRecord, country_name), 0, 0 }, { ngx_string("geoip_region"), NULL, ngx_http_geoip_city_variable, offsetof(GeoIPRecord, region), 0, 0 }, { ngx_string("geoip_city"), NULL, ngx_http_geoip_city_variable, offsetof(GeoIPRecord, city), 0, 0 }, { ngx_string("geoip_postal_code"), NULL, ngx_http_geoip_city_variable, offsetof(GeoIPRecord, postal_code), 0, 0 }, { ngx_null_string, NULL, NULL, 0, 0, 0 } }; static ngx_int_t ngx_http_geoip_country_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data) { ngx_http_geoip_variable_handler_pt handler = (ngx_http_geoip_variable_handler_pt) data; u_long addr; const char *val; struct sockaddr_in *sin; ngx_http_geoip_conf_t *gcf; gcf = ngx_http_get_module_main_conf(r, ngx_http_geoip_module); if (gcf->country == NULL) { goto not_found; } if (r->connection->sockaddr->sa_family != AF_INET) { goto not_found; } sin = (struct sockaddr_in *) r->connection->sockaddr; addr = ntohl(sin->sin_addr.s_addr); val = handler(gcf->country, addr); if (val == NULL) { goto not_found; } v->len = ngx_strlen(val); v->valid = 1; v->no_cacheable = 0; v->not_found = 0; v->data = (u_char *) val; return NGX_OK; not_found: v->not_found = 1; return NGX_OK; } static ngx_int_t ngx_http_geoip_city_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data) { u_long addr; char *val; size_t len; GeoIPRecord *gr; struct sockaddr_in *sin; ngx_http_geoip_conf_t *gcf; gcf = ngx_http_get_module_main_conf(r, ngx_http_geoip_module); if (gcf->city == NULL) { goto not_found; } if (r->connection->sockaddr->sa_family != AF_INET) { goto not_found; } sin = (struct sockaddr_in *) r->connection->sockaddr; addr = ntohl(sin->sin_addr.s_addr); gr = GeoIP_record_by_ipnum(gcf->city, addr); if (gr == NULL) { goto not_found; } val = *(char **) ((char *) gr + data); if (val == NULL) { goto no_value; } len = ngx_strlen(val); v->data = ngx_pnalloc(r->pool, len); if (v->data == NULL) { GeoIPRecord_delete(gr); return NGX_ERROR; } ngx_memcpy(v->data, val, len); v->len = len; v->valid = 1; v->no_cacheable = 0; v->not_found = 0; GeoIPRecord_delete(gr); return NGX_OK; no_value: GeoIPRecord_delete(gr); not_found: v->not_found = 1; return NGX_OK; } static ngx_int_t ngx_http_geoip_add_variables(ngx_conf_t *cf) { ngx_http_variable_t *var, *v; for (v = ngx_http_geoip_vars; v->name.len; v++) { var = ngx_http_add_variable(cf, &v->name, v->flags); if (var == NULL) { return NGX_ERROR; } var->get_handler = v->get_handler; var->data = v->data; } return NGX_OK; } static void * ngx_http_geoip_create_conf(ngx_conf_t *cf) { ngx_pool_cleanup_t *cln; ngx_http_geoip_conf_t *conf; conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_geoip_conf_t)); if (conf == NULL) { return NULL; } cln = ngx_pool_cleanup_add(cf->pool, 0); if (cln == NULL) { return NULL; } cln->handler = ngx_http_geoip_cleanup; cln->data = conf; return conf; } static char * ngx_http_geoip_country(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_geoip_conf_t *gcf = conf; ngx_str_t *value; if (gcf->country) { return "is duplicate"; } value = cf->args->elts; gcf->country = GeoIP_open((char *) value[1].data, GEOIP_MEMORY_CACHE); if (gcf->country == NULL) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "GeoIO_open(\"%V\") failed", &value[1]); return NGX_CONF_ERROR; } switch (gcf->country->databaseType) { case GEOIP_COUNTRY_EDITION: case GEOIP_PROXY_EDITION: case GEOIP_NETSPEED_EDITION: return NGX_CONF_OK; default: ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid GeoIP database \"%V\" type:%d", &value[1], gcf->country->databaseType); return NGX_CONF_ERROR; } } static char * ngx_http_geoip_city(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_geoip_conf_t *gcf = conf; ngx_str_t *value; if (gcf->city) { return "is duplicate"; } value = cf->args->elts; gcf->city = GeoIP_open((char *) value[1].data, GEOIP_MEMORY_CACHE); if (gcf->city == NULL) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "GeoIO_open(\"%V\") failed", &value[1]); return NGX_CONF_ERROR; } switch (gcf->city->databaseType) { case GEOIP_CITY_EDITION_REV0: case GEOIP_CITY_EDITION_REV1: return NGX_CONF_OK; default: ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid GeoIP City database \"%V\" type:%d", &value[1], gcf->city->databaseType); return NGX_CONF_ERROR; } } static void ngx_http_geoip_cleanup(void *data) { ngx_http_geoip_conf_t *gcf = data; if (gcf->country) { GeoIP_delete(gcf->country); } if (gcf->city) { GeoIP_delete(gcf->city); } }