|  | 
 | /* | 
 |  * Copyright (C) Igor Sysoev | 
 |  * Copyright (C) Nginx, Inc. | 
 |  */ | 
 |  | 
 |  | 
 | #include <ngx_config.h> | 
 | #include <ngx_core.h> | 
 | #include <ngx_http.h> | 
 |  | 
 | #include <GeoIP.h> | 
 | #include <GeoIPCity.h> | 
 |  | 
 |  | 
 | #define NGX_GEOIP_COUNTRY_CODE   0 | 
 | #define NGX_GEOIP_COUNTRY_CODE3  1 | 
 | #define NGX_GEOIP_COUNTRY_NAME   2 | 
 |  | 
 |  | 
 | typedef struct { | 
 |     GeoIP        *country; | 
 |     GeoIP        *org; | 
 |     GeoIP        *city; | 
 |     ngx_array_t  *proxies;    /* array of ngx_cidr_t */ | 
 |     ngx_flag_t    proxy_recursive; | 
 | #if (NGX_HAVE_GEOIP_V6) | 
 |     unsigned      country_v6:1; | 
 |     unsigned      org_v6:1; | 
 |     unsigned      city_v6:1; | 
 | #endif | 
 | } 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); | 
 |  | 
 |  | 
 | ngx_http_geoip_variable_handler_pt ngx_http_geoip_country_functions[] = { | 
 |     GeoIP_country_code_by_ipnum, | 
 |     GeoIP_country_code3_by_ipnum, | 
 |     GeoIP_country_name_by_ipnum, | 
 | }; | 
 |  | 
 |  | 
 | #if (NGX_HAVE_GEOIP_V6) | 
 |  | 
 | typedef const char *(*ngx_http_geoip_variable_handler_v6_pt)(GeoIP *, | 
 |     geoipv6_t addr); | 
 |  | 
 |  | 
 | ngx_http_geoip_variable_handler_v6_pt ngx_http_geoip_country_v6_functions[] = { | 
 |     GeoIP_country_code_by_ipnum_v6, | 
 |     GeoIP_country_code3_by_ipnum_v6, | 
 |     GeoIP_country_name_by_ipnum_v6, | 
 | }; | 
 |  | 
 | #endif | 
 |  | 
 |  | 
 | 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_org_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_region_name_variable(ngx_http_request_t *r, | 
 |     ngx_http_variable_value_t *v, uintptr_t data); | 
 | static ngx_int_t ngx_http_geoip_city_float_variable(ngx_http_request_t *r, | 
 |     ngx_http_variable_value_t *v, uintptr_t data); | 
 | static ngx_int_t ngx_http_geoip_city_int_variable(ngx_http_request_t *r, | 
 |     ngx_http_variable_value_t *v, uintptr_t data); | 
 | static GeoIPRecord *ngx_http_geoip_get_city_record(ngx_http_request_t *r); | 
 |  | 
 | 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_init_conf(ngx_conf_t *cf, void *conf); | 
 | static char *ngx_http_geoip_country(ngx_conf_t *cf, ngx_command_t *cmd, | 
 |     void *conf); | 
 | static char *ngx_http_geoip_org(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 char *ngx_http_geoip_proxy(ngx_conf_t *cf, ngx_command_t *cmd, | 
 |     void *conf); | 
 | static ngx_int_t ngx_http_geoip_cidr_value(ngx_conf_t *cf, ngx_str_t *net, | 
 |     ngx_cidr_t *cidr); | 
 | 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_TAKE12, | 
 |       ngx_http_geoip_country, | 
 |       NGX_HTTP_MAIN_CONF_OFFSET, | 
 |       0, | 
 |       NULL }, | 
 |  | 
 |     { ngx_string("geoip_org"), | 
 |       NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE12, | 
 |       ngx_http_geoip_org, | 
 |       NGX_HTTP_MAIN_CONF_OFFSET, | 
 |       0, | 
 |       NULL }, | 
 |  | 
 |     { ngx_string("geoip_city"), | 
 |       NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE12, | 
 |       ngx_http_geoip_city, | 
 |       NGX_HTTP_MAIN_CONF_OFFSET, | 
 |       0, | 
 |       NULL }, | 
 |  | 
 |     { ngx_string("geoip_proxy"), | 
 |       NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, | 
 |       ngx_http_geoip_proxy, | 
 |       NGX_HTTP_MAIN_CONF_OFFSET, | 
 |       0, | 
 |       NULL }, | 
 |  | 
 |     { ngx_string("geoip_proxy_recursive"), | 
 |       NGX_HTTP_MAIN_CONF|NGX_CONF_FLAG, | 
 |       ngx_conf_set_flag_slot, | 
 |       NGX_HTTP_MAIN_CONF_OFFSET, | 
 |       offsetof(ngx_http_geoip_conf_t, proxy_recursive), | 
 |       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 */ | 
 |     ngx_http_geoip_init_conf,              /* 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, | 
 |       NGX_GEOIP_COUNTRY_CODE, 0, 0 }, | 
 |  | 
 |     { ngx_string("geoip_country_code3"), NULL, | 
 |       ngx_http_geoip_country_variable, | 
 |       NGX_GEOIP_COUNTRY_CODE3, 0, 0 }, | 
 |  | 
 |     { ngx_string("geoip_country_name"), NULL, | 
 |       ngx_http_geoip_country_variable, | 
 |       NGX_GEOIP_COUNTRY_NAME, 0, 0 }, | 
 |  | 
 |     { ngx_string("geoip_org"), NULL, | 
 |       ngx_http_geoip_org_variable, | 
 |       0, 0, 0 }, | 
 |  | 
 |     { ngx_string("geoip_city_continent_code"), NULL, | 
 |       ngx_http_geoip_city_variable, | 
 |       offsetof(GeoIPRecord, continent_code), 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_region_name"), NULL, | 
 |       ngx_http_geoip_region_name_variable, | 
 |       0, 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_string("geoip_latitude"), NULL, | 
 |       ngx_http_geoip_city_float_variable, | 
 |       offsetof(GeoIPRecord, latitude), 0, 0 }, | 
 |  | 
 |     { ngx_string("geoip_longitude"), NULL, | 
 |       ngx_http_geoip_city_float_variable, | 
 |       offsetof(GeoIPRecord, longitude), 0, 0 }, | 
 |  | 
 |     { ngx_string("geoip_dma_code"), NULL, | 
 |       ngx_http_geoip_city_int_variable, | 
 |       offsetof(GeoIPRecord, dma_code), 0, 0 }, | 
 |  | 
 |     { ngx_string("geoip_area_code"), NULL, | 
 |       ngx_http_geoip_city_int_variable, | 
 |       offsetof(GeoIPRecord, area_code), 0, 0 }, | 
 |  | 
 |     { ngx_null_string, NULL, NULL, 0, 0, 0 } | 
 | }; | 
 |  | 
 |  | 
 | static u_long | 
 | ngx_http_geoip_addr(ngx_http_request_t *r, ngx_http_geoip_conf_t *gcf) | 
 | { | 
 |     ngx_addr_t           addr; | 
 |     ngx_array_t         *xfwd; | 
 |     struct sockaddr_in  *sin; | 
 |  | 
 |     addr.sockaddr = r->connection->sockaddr; | 
 |     addr.socklen = r->connection->socklen; | 
 |     /* addr.name = r->connection->addr_text; */ | 
 |  | 
 |     xfwd = &r->headers_in.x_forwarded_for; | 
 |  | 
 |     if (xfwd->nelts > 0 && gcf->proxies != NULL) { | 
 |         (void) ngx_http_get_forwarded_addr(r, &addr, xfwd, NULL, | 
 |                                            gcf->proxies, gcf->proxy_recursive); | 
 |     } | 
 |  | 
 | #if (NGX_HAVE_INET6) | 
 |  | 
 |     if (addr.sockaddr->sa_family == AF_INET6) { | 
 |         u_char           *p; | 
 |         in_addr_t         inaddr; | 
 |         struct in6_addr  *inaddr6; | 
 |  | 
 |         inaddr6 = &((struct sockaddr_in6 *) addr.sockaddr)->sin6_addr; | 
 |  | 
 |         if (IN6_IS_ADDR_V4MAPPED(inaddr6)) { | 
 |             p = inaddr6->s6_addr; | 
 |  | 
 |             inaddr = p[12] << 24; | 
 |             inaddr += p[13] << 16; | 
 |             inaddr += p[14] << 8; | 
 |             inaddr += p[15]; | 
 |  | 
 |             return inaddr; | 
 |         } | 
 |     } | 
 |  | 
 | #endif | 
 |  | 
 |     if (addr.sockaddr->sa_family != AF_INET) { | 
 |         return INADDR_NONE; | 
 |     } | 
 |  | 
 |     sin = (struct sockaddr_in *) addr.sockaddr; | 
 |     return ntohl(sin->sin_addr.s_addr); | 
 | } | 
 |  | 
 |  | 
 | #if (NGX_HAVE_GEOIP_V6) | 
 |  | 
 | static geoipv6_t | 
 | ngx_http_geoip_addr_v6(ngx_http_request_t *r, ngx_http_geoip_conf_t *gcf) | 
 | { | 
 |     ngx_addr_t            addr; | 
 |     ngx_array_t          *xfwd; | 
 |     in_addr_t             addr4; | 
 |     struct in6_addr       addr6; | 
 |     struct sockaddr_in   *sin; | 
 |     struct sockaddr_in6  *sin6; | 
 |  | 
 |     addr.sockaddr = r->connection->sockaddr; | 
 |     addr.socklen = r->connection->socklen; | 
 |     /* addr.name = r->connection->addr_text; */ | 
 |  | 
 |     xfwd = &r->headers_in.x_forwarded_for; | 
 |  | 
 |     if (xfwd->nelts > 0 && gcf->proxies != NULL) { | 
 |         (void) ngx_http_get_forwarded_addr(r, &addr, xfwd, NULL, | 
 |                                            gcf->proxies, gcf->proxy_recursive); | 
 |     } | 
 |  | 
 |     switch (addr.sockaddr->sa_family) { | 
 |  | 
 |     case AF_INET: | 
 |         /* Produce IPv4-mapped IPv6 address. */ | 
 |         sin = (struct sockaddr_in *) addr.sockaddr; | 
 |         addr4 = ntohl(sin->sin_addr.s_addr); | 
 |  | 
 |         ngx_memzero(&addr6, sizeof(struct in6_addr)); | 
 |         addr6.s6_addr[10] = 0xff; | 
 |         addr6.s6_addr[11] = 0xff; | 
 |         addr6.s6_addr[12] = addr4 >> 24; | 
 |         addr6.s6_addr[13] = addr4 >> 16; | 
 |         addr6.s6_addr[14] = addr4 >> 8; | 
 |         addr6.s6_addr[15] = addr4; | 
 |         return addr6; | 
 |  | 
 |     case AF_INET6: | 
 |         sin6 = (struct sockaddr_in6 *) addr.sockaddr; | 
 |         return sin6->sin6_addr; | 
 |  | 
 |     default: | 
 |         return in6addr_any; | 
 |     } | 
 | } | 
 |  | 
 | #endif | 
 |  | 
 |  | 
 | 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_country_functions[data]; | 
 | #if (NGX_HAVE_GEOIP_V6) | 
 |     ngx_http_geoip_variable_handler_v6_pt  handler_v6 = | 
 |         ngx_http_geoip_country_v6_functions[data]; | 
 | #endif | 
 |  | 
 |     const char             *val; | 
 |     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 (NGX_HAVE_GEOIP_V6) | 
 |     val = gcf->country_v6 | 
 |               ? handler_v6(gcf->country, ngx_http_geoip_addr_v6(r, gcf)) | 
 |               : handler(gcf->country, ngx_http_geoip_addr(r, gcf)); | 
 | #else | 
 |     val = handler(gcf->country, ngx_http_geoip_addr(r, gcf)); | 
 | #endif | 
 |  | 
 |     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_org_variable(ngx_http_request_t *r, | 
 |     ngx_http_variable_value_t *v, uintptr_t data) | 
 | { | 
 |     size_t                  len; | 
 |     char                   *val; | 
 |     ngx_http_geoip_conf_t  *gcf; | 
 |  | 
 |     gcf = ngx_http_get_module_main_conf(r, ngx_http_geoip_module); | 
 |  | 
 |     if (gcf->org == NULL) { | 
 |         goto not_found; | 
 |     } | 
 |  | 
 | #if (NGX_HAVE_GEOIP_V6) | 
 |     val = gcf->org_v6 | 
 |               ? GeoIP_name_by_ipnum_v6(gcf->org, | 
 |                                        ngx_http_geoip_addr_v6(r, gcf)) | 
 |               : GeoIP_name_by_ipnum(gcf->org, | 
 |                                     ngx_http_geoip_addr(r, gcf)); | 
 | #else | 
 |     val = GeoIP_name_by_ipnum(gcf->org, ngx_http_geoip_addr(r, gcf)); | 
 | #endif | 
 |  | 
 |     if (val == NULL) { | 
 |         goto not_found; | 
 |     } | 
 |  | 
 |     len = ngx_strlen(val); | 
 |     v->data = ngx_pnalloc(r->pool, len); | 
 |     if (v->data == NULL) { | 
 |         ngx_free(val); | 
 |         return NGX_ERROR; | 
 |     } | 
 |  | 
 |     ngx_memcpy(v->data, val, len); | 
 |  | 
 |     v->len = len; | 
 |     v->valid = 1; | 
 |     v->no_cacheable = 0; | 
 |     v->not_found = 0; | 
 |  | 
 |     ngx_free(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) | 
 | { | 
 |     char         *val; | 
 |     size_t        len; | 
 |     GeoIPRecord  *gr; | 
 |  | 
 |     gr = ngx_http_geoip_get_city_record(r); | 
 |     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_region_name_variable(ngx_http_request_t *r, | 
 |     ngx_http_variable_value_t *v, uintptr_t data) | 
 | { | 
 |     size_t        len; | 
 |     const char   *val; | 
 |     GeoIPRecord  *gr; | 
 |  | 
 |     gr = ngx_http_geoip_get_city_record(r); | 
 |     if (gr == NULL) { | 
 |         goto not_found; | 
 |     } | 
 |  | 
 |     val = GeoIP_region_name_by_code(gr->country_code, gr->region); | 
 |  | 
 |     GeoIPRecord_delete(gr); | 
 |  | 
 |     if (val == NULL) { | 
 |         goto not_found; | 
 |     } | 
 |  | 
 |     len = ngx_strlen(val); | 
 |     v->data = ngx_pnalloc(r->pool, len); | 
 |     if (v->data == NULL) { | 
 |         return NGX_ERROR; | 
 |     } | 
 |  | 
 |     ngx_memcpy(v->data, val, len); | 
 |  | 
 |     v->len = len; | 
 |     v->valid = 1; | 
 |     v->no_cacheable = 0; | 
 |     v->not_found = 0; | 
 |  | 
 |     return NGX_OK; | 
 |  | 
 | not_found: | 
 |  | 
 |     v->not_found = 1; | 
 |  | 
 |     return NGX_OK; | 
 | } | 
 |  | 
 |  | 
 | static ngx_int_t | 
 | ngx_http_geoip_city_float_variable(ngx_http_request_t *r, | 
 |     ngx_http_variable_value_t *v, uintptr_t data) | 
 | { | 
 |     float         val; | 
 |     GeoIPRecord  *gr; | 
 |  | 
 |     gr = ngx_http_geoip_get_city_record(r); | 
 |     if (gr == NULL) { | 
 |         v->not_found = 1; | 
 |         return NGX_OK; | 
 |     } | 
 |  | 
 |     v->data = ngx_pnalloc(r->pool, NGX_INT64_LEN + 5); | 
 |     if (v->data == NULL) { | 
 |         GeoIPRecord_delete(gr); | 
 |         return NGX_ERROR; | 
 |     } | 
 |  | 
 |     val = *(float *) ((char *) gr + data); | 
 |  | 
 |     v->len = ngx_sprintf(v->data, "%.4f", val) - v->data; | 
 |  | 
 |     GeoIPRecord_delete(gr); | 
 |  | 
 |     return NGX_OK; | 
 | } | 
 |  | 
 |  | 
 | static ngx_int_t | 
 | ngx_http_geoip_city_int_variable(ngx_http_request_t *r, | 
 |     ngx_http_variable_value_t *v, uintptr_t data) | 
 | { | 
 |     int           val; | 
 |     GeoIPRecord  *gr; | 
 |  | 
 |     gr = ngx_http_geoip_get_city_record(r); | 
 |     if (gr == NULL) { | 
 |         v->not_found = 1; | 
 |         return NGX_OK; | 
 |     } | 
 |  | 
 |     v->data = ngx_pnalloc(r->pool, NGX_INT64_LEN); | 
 |     if (v->data == NULL) { | 
 |         GeoIPRecord_delete(gr); | 
 |         return NGX_ERROR; | 
 |     } | 
 |  | 
 |     val = *(int *) ((char *) gr + data); | 
 |  | 
 |     v->len = ngx_sprintf(v->data, "%d", val) - v->data; | 
 |  | 
 |     GeoIPRecord_delete(gr); | 
 |  | 
 |     return NGX_OK; | 
 | } | 
 |  | 
 |  | 
 | static GeoIPRecord * | 
 | ngx_http_geoip_get_city_record(ngx_http_request_t *r) | 
 | { | 
 |     ngx_http_geoip_conf_t  *gcf; | 
 |  | 
 |     gcf = ngx_http_get_module_main_conf(r, ngx_http_geoip_module); | 
 |  | 
 |     if (gcf->city) { | 
 | #if (NGX_HAVE_GEOIP_V6) | 
 |         return gcf->city_v6 | 
 |                    ? GeoIP_record_by_ipnum_v6(gcf->city, | 
 |                                               ngx_http_geoip_addr_v6(r, gcf)) | 
 |                    : GeoIP_record_by_ipnum(gcf->city, | 
 |                                            ngx_http_geoip_addr(r, gcf)); | 
 | #else | 
 |         return GeoIP_record_by_ipnum(gcf->city, ngx_http_geoip_addr(r, gcf)); | 
 | #endif | 
 |     } | 
 |  | 
 |     return NULL; | 
 | } | 
 |  | 
 |  | 
 | 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; | 
 |     } | 
 |  | 
 |     conf->proxy_recursive = NGX_CONF_UNSET; | 
 |  | 
 |     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_init_conf(ngx_conf_t *cf, void *conf) | 
 | { | 
 |     ngx_http_geoip_conf_t  *gcf = conf; | 
 |  | 
 |     ngx_conf_init_value(gcf->proxy_recursive, 0); | 
 |  | 
 |     return NGX_CONF_OK; | 
 | } | 
 |  | 
 |  | 
 | 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, | 
 |                            "GeoIP_open(\"%V\") failed", &value[1]); | 
 |  | 
 |         return NGX_CONF_ERROR; | 
 |     } | 
 |  | 
 |     if (cf->args->nelts == 3) { | 
 |         if (ngx_strcmp(value[2].data, "utf8") == 0) { | 
 |             GeoIP_set_charset (gcf->country, GEOIP_CHARSET_UTF8); | 
 |  | 
 |         } else { | 
 |             ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | 
 |                                "invalid parameter \"%V\"", &value[2]); | 
 |             return NGX_CONF_ERROR; | 
 |         } | 
 |     } | 
 |  | 
 |     switch (gcf->country->databaseType) { | 
 |  | 
 |     case GEOIP_COUNTRY_EDITION: | 
 |  | 
 |         return NGX_CONF_OK; | 
 |  | 
 | #if (NGX_HAVE_GEOIP_V6) | 
 |     case GEOIP_COUNTRY_EDITION_V6: | 
 |  | 
 |         gcf->country_v6 = 1; | 
 |         return NGX_CONF_OK; | 
 | #endif | 
 |  | 
 |     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_org(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | 
 | { | 
 |     ngx_http_geoip_conf_t  *gcf = conf; | 
 |  | 
 |     ngx_str_t  *value; | 
 |  | 
 |     if (gcf->org) { | 
 |         return "is duplicate"; | 
 |     } | 
 |  | 
 |     value = cf->args->elts; | 
 |  | 
 |     gcf->org = GeoIP_open((char *) value[1].data, GEOIP_MEMORY_CACHE); | 
 |  | 
 |     if (gcf->org == NULL) { | 
 |         ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | 
 |                            "GeoIP_open(\"%V\") failed", &value[1]); | 
 |  | 
 |         return NGX_CONF_ERROR; | 
 |     } | 
 |  | 
 |     if (cf->args->nelts == 3) { | 
 |         if (ngx_strcmp(value[2].data, "utf8") == 0) { | 
 |             GeoIP_set_charset (gcf->org, GEOIP_CHARSET_UTF8); | 
 |  | 
 |         } else { | 
 |             ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | 
 |                                "invalid parameter \"%V\"", &value[2]); | 
 |             return NGX_CONF_ERROR; | 
 |         } | 
 |     } | 
 |  | 
 |     switch (gcf->org->databaseType) { | 
 |  | 
 |     case GEOIP_ISP_EDITION: | 
 |     case GEOIP_ORG_EDITION: | 
 |     case GEOIP_DOMAIN_EDITION: | 
 |     case GEOIP_ASNUM_EDITION: | 
 |  | 
 |         return NGX_CONF_OK; | 
 |  | 
 | #if (NGX_HAVE_GEOIP_V6) | 
 |     case GEOIP_ISP_EDITION_V6: | 
 |     case GEOIP_ORG_EDITION_V6: | 
 |     case GEOIP_DOMAIN_EDITION_V6: | 
 |     case GEOIP_ASNUM_EDITION_V6: | 
 |  | 
 |         gcf->org_v6 = 1; | 
 |         return NGX_CONF_OK; | 
 | #endif | 
 |  | 
 |     default: | 
 |         ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | 
 |                            "invalid GeoIP database \"%V\" type:%d", | 
 |                            &value[1], gcf->org->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, | 
 |                            "GeoIP_open(\"%V\") failed", &value[1]); | 
 |  | 
 |         return NGX_CONF_ERROR; | 
 |     } | 
 |  | 
 |     if (cf->args->nelts == 3) { | 
 |         if (ngx_strcmp(value[2].data, "utf8") == 0) { | 
 |             GeoIP_set_charset (gcf->city, GEOIP_CHARSET_UTF8); | 
 |  | 
 |         } else { | 
 |             ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | 
 |                                "invalid parameter \"%V\"", &value[2]); | 
 |             return NGX_CONF_ERROR; | 
 |         } | 
 |     } | 
 |  | 
 |     switch (gcf->city->databaseType) { | 
 |  | 
 |     case GEOIP_CITY_EDITION_REV0: | 
 |     case GEOIP_CITY_EDITION_REV1: | 
 |  | 
 |         return NGX_CONF_OK; | 
 |  | 
 | #if (NGX_HAVE_GEOIP_V6) | 
 |     case GEOIP_CITY_EDITION_REV0_V6: | 
 |     case GEOIP_CITY_EDITION_REV1_V6: | 
 |  | 
 |         gcf->city_v6 = 1; | 
 |         return NGX_CONF_OK; | 
 | #endif | 
 |  | 
 |     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 char * | 
 | ngx_http_geoip_proxy(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | 
 | { | 
 |     ngx_http_geoip_conf_t  *gcf = conf; | 
 |  | 
 |     ngx_str_t   *value; | 
 |     ngx_cidr_t  cidr, *c; | 
 |  | 
 |     value = cf->args->elts; | 
 |  | 
 |     if (ngx_http_geoip_cidr_value(cf, &value[1], &cidr) != NGX_OK) { | 
 |         return NGX_CONF_ERROR; | 
 |     } | 
 |  | 
 |     if (gcf->proxies == NULL) { | 
 |         gcf->proxies = ngx_array_create(cf->pool, 4, sizeof(ngx_cidr_t)); | 
 |         if (gcf->proxies == NULL) { | 
 |             return NGX_CONF_ERROR; | 
 |         } | 
 |     } | 
 |  | 
 |     c = ngx_array_push(gcf->proxies); | 
 |     if (c == NULL) { | 
 |         return NGX_CONF_ERROR; | 
 |     } | 
 |  | 
 |     *c = cidr; | 
 |  | 
 |     return NGX_CONF_OK; | 
 | } | 
 |  | 
 | static ngx_int_t | 
 | ngx_http_geoip_cidr_value(ngx_conf_t *cf, ngx_str_t *net, ngx_cidr_t *cidr) | 
 | { | 
 |     ngx_int_t  rc; | 
 |  | 
 |     if (ngx_strcmp(net->data, "255.255.255.255") == 0) { | 
 |         cidr->family = AF_INET; | 
 |         cidr->u.in.addr = 0xffffffff; | 
 |         cidr->u.in.mask = 0xffffffff; | 
 |  | 
 |         return NGX_OK; | 
 |     } | 
 |  | 
 |     rc = ngx_ptocidr(net, cidr); | 
 |  | 
 |     if (rc == NGX_ERROR) { | 
 |         ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid network \"%V\"", net); | 
 |         return NGX_ERROR; | 
 |     } | 
 |  | 
 |     if (rc == NGX_DONE) { | 
 |         ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | 
 |                            "low address bits of %V are meaningless", net); | 
 |     } | 
 |  | 
 |     return NGX_OK; | 
 | } | 
 |  | 
 |  | 
 | static void | 
 | ngx_http_geoip_cleanup(void *data) | 
 | { | 
 |     ngx_http_geoip_conf_t  *gcf = data; | 
 |  | 
 |     if (gcf->country) { | 
 |         GeoIP_delete(gcf->country); | 
 |     } | 
 |  | 
 |     if (gcf->org) { | 
 |         GeoIP_delete(gcf->org); | 
 |     } | 
 |  | 
 |     if (gcf->city) { | 
 |         GeoIP_delete(gcf->city); | 
 |     } | 
 | } |