| |
| /* |
| * 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> |
| |
| |
| typedef struct { |
| GeoIP *country; |
| GeoIP *org; |
| 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_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_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 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_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_org"), NULL, |
| ngx_http_geoip_org_variable, |
| (uintptr_t) GeoIP_name_by_ipnum, 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) |
| { |
| struct sockaddr_in *sin; |
| #if (NGX_HAVE_INET6) |
| u_char *p; |
| u_long addr; |
| struct sockaddr_in6 *sin6; |
| #endif |
| |
| switch (r->connection->sockaddr->sa_family) { |
| |
| case AF_INET: |
| sin = (struct sockaddr_in *) r->connection->sockaddr; |
| return ntohl(sin->sin_addr.s_addr); |
| |
| #if (NGX_HAVE_INET6) |
| |
| case AF_INET6: |
| sin6 = (struct sockaddr_in6 *) r->connection->sockaddr; |
| |
| if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) { |
| p = sin6->sin6_addr.s6_addr; |
| addr = p[12] << 24; |
| addr += p[13] << 16; |
| addr += p[14] << 8; |
| addr += p[15]; |
| |
| return addr; |
| } |
| |
| #endif |
| } |
| |
| return INADDR_NONE; |
| } |
| |
| |
| 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; |
| |
| 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; |
| } |
| |
| val = handler(gcf->country, ngx_http_geoip_addr(r)); |
| |
| 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) |
| { |
| ngx_http_geoip_variable_handler_pt handler = |
| (ngx_http_geoip_variable_handler_pt) data; |
| |
| const 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; |
| } |
| |
| val = handler(gcf->org, ngx_http_geoip_addr(r)); |
| |
| 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) |
| { |
| 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) { |
| return GeoIP_record_by_ipnum(gcf->city, ngx_http_geoip_addr(r)); |
| } |
| |
| 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; |
| } |
| |
| 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, |
| "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: |
| 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_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; |
| |
| 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; |
| |
| 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->org) { |
| GeoIP_delete(gcf->org); |
| } |
| |
| if (gcf->city) { |
| GeoIP_delete(gcf->city); |
| } |
| } |