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src/stream/ngx_stream_geoip_module.c - nginx source code
Global variables defined
Data types defined
Functions defined
Macros defined
Source code
- #include <ngx_config.h>
- #include <ngx_core.h>
- #include <ngx_stream.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;
- #if (NGX_HAVE_GEOIP_V6)
- unsigned country_v6:1;
- unsigned org_v6:1;
- unsigned city_v6:1;
- #endif
- } ngx_stream_geoip_conf_t;
- typedef struct {
- ngx_str_t *name;
- uintptr_t data;
- } ngx_stream_geoip_var_t;
- typedef const char *(*ngx_stream_geoip_variable_handler_pt)(GeoIP *,
- u_long addr);
- ngx_stream_geoip_variable_handler_pt ngx_stream_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_stream_geoip_variable_handler_v6_pt)(GeoIP *,
- geoipv6_t addr);
- ngx_stream_geoip_variable_handler_v6_pt
- ngx_stream_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_stream_geoip_country_variable(ngx_stream_session_t *s,
- ngx_stream_variable_value_t *v, uintptr_t data);
- static ngx_int_t ngx_stream_geoip_org_variable(ngx_stream_session_t *s,
- ngx_stream_variable_value_t *v, uintptr_t data);
- static ngx_int_t ngx_stream_geoip_city_variable(ngx_stream_session_t *s,
- ngx_stream_variable_value_t *v, uintptr_t data);
- static ngx_int_t ngx_stream_geoip_region_name_variable(ngx_stream_session_t *s,
- ngx_stream_variable_value_t *v, uintptr_t data);
- static ngx_int_t ngx_stream_geoip_city_float_variable(ngx_stream_session_t *s,
- ngx_stream_variable_value_t *v, uintptr_t data);
- static ngx_int_t ngx_stream_geoip_city_int_variable(ngx_stream_session_t *s,
- ngx_stream_variable_value_t *v, uintptr_t data);
- static GeoIPRecord *ngx_stream_geoip_get_city_record(ngx_stream_session_t *s);
- static ngx_int_t ngx_stream_geoip_add_variables(ngx_conf_t *cf);
- static void *ngx_stream_geoip_create_conf(ngx_conf_t *cf);
- static char *ngx_stream_geoip_country(ngx_conf_t *cf, ngx_command_t *cmd,
- void *conf);
- static char *ngx_stream_geoip_org(ngx_conf_t *cf, ngx_command_t *cmd,
- void *conf);
- static char *ngx_stream_geoip_city(ngx_conf_t *cf, ngx_command_t *cmd,
- void *conf);
- static void ngx_stream_geoip_cleanup(void *data);
- static ngx_command_t ngx_stream_geoip_commands[] = {
- { ngx_string("geoip_country"),
- NGX_STREAM_MAIN_CONF|NGX_CONF_TAKE12,
- ngx_stream_geoip_country,
- NGX_STREAM_MAIN_CONF_OFFSET,
- 0,
- NULL },
- { ngx_string("geoip_org"),
- NGX_STREAM_MAIN_CONF|NGX_CONF_TAKE12,
- ngx_stream_geoip_org,
- NGX_STREAM_MAIN_CONF_OFFSET,
- 0,
- NULL },
- { ngx_string("geoip_city"),
- NGX_STREAM_MAIN_CONF|NGX_CONF_TAKE12,
- ngx_stream_geoip_city,
- NGX_STREAM_MAIN_CONF_OFFSET,
- 0,
- NULL },
- ngx_null_command
- };
- static ngx_stream_module_t ngx_stream_geoip_module_ctx = {
- ngx_stream_geoip_add_variables,
- NULL,
- ngx_stream_geoip_create_conf,
- NULL,
- NULL,
- NULL
- };
- ngx_module_t ngx_stream_geoip_module = {
- NGX_MODULE_V1,
- &ngx_stream_geoip_module_ctx,
- ngx_stream_geoip_commands,
- NGX_STREAM_MODULE,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NGX_MODULE_V1_PADDING
- };
- static ngx_stream_variable_t ngx_stream_geoip_vars[] = {
- { ngx_string("geoip_country_code"), NULL,
- ngx_stream_geoip_country_variable,
- NGX_GEOIP_COUNTRY_CODE, 0, 0 },
- { ngx_string("geoip_country_code3"), NULL,
- ngx_stream_geoip_country_variable,
- NGX_GEOIP_COUNTRY_CODE3, 0, 0 },
- { ngx_string("geoip_country_name"), NULL,
- ngx_stream_geoip_country_variable,
- NGX_GEOIP_COUNTRY_NAME, 0, 0 },
- { ngx_string("geoip_org"), NULL,
- ngx_stream_geoip_org_variable,
- 0, 0, 0 },
- { ngx_string("geoip_city_continent_code"), NULL,
- ngx_stream_geoip_city_variable,
- offsetof(GeoIPRecord, continent_code), 0, 0 },
- { ngx_string("geoip_city_country_code"), NULL,
- ngx_stream_geoip_city_variable,
- offsetof(GeoIPRecord, country_code), 0, 0 },
- { ngx_string("geoip_city_country_code3"), NULL,
- ngx_stream_geoip_city_variable,
- offsetof(GeoIPRecord, country_code3), 0, 0 },
- { ngx_string("geoip_city_country_name"), NULL,
- ngx_stream_geoip_city_variable,
- offsetof(GeoIPRecord, country_name), 0, 0 },
- { ngx_string("geoip_region"), NULL,
- ngx_stream_geoip_city_variable,
- offsetof(GeoIPRecord, region), 0, 0 },
- { ngx_string("geoip_region_name"), NULL,
- ngx_stream_geoip_region_name_variable,
- 0, 0, 0 },
- { ngx_string("geoip_city"), NULL,
- ngx_stream_geoip_city_variable,
- offsetof(GeoIPRecord, city), 0, 0 },
- { ngx_string("geoip_postal_code"), NULL,
- ngx_stream_geoip_city_variable,
- offsetof(GeoIPRecord, postal_code), 0, 0 },
- { ngx_string("geoip_latitude"), NULL,
- ngx_stream_geoip_city_float_variable,
- offsetof(GeoIPRecord, latitude), 0, 0 },
- { ngx_string("geoip_longitude"), NULL,
- ngx_stream_geoip_city_float_variable,
- offsetof(GeoIPRecord, longitude), 0, 0 },
- { ngx_string("geoip_dma_code"), NULL,
- ngx_stream_geoip_city_int_variable,
- offsetof(GeoIPRecord, dma_code), 0, 0 },
- { ngx_string("geoip_area_code"), NULL,
- ngx_stream_geoip_city_int_variable,
- offsetof(GeoIPRecord, area_code), 0, 0 },
- ngx_stream_null_variable
- };
- static u_long
- ngx_stream_geoip_addr(ngx_stream_session_t *s, ngx_stream_geoip_conf_t *gcf)
- {
- ngx_addr_t addr;
- struct sockaddr_in *sin;
- addr.sockaddr = s->connection->sockaddr;
- addr.socklen = s->connection->socklen;
-
- #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 = (in_addr_t) 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_stream_geoip_addr_v6(ngx_stream_session_t *s, ngx_stream_geoip_conf_t *gcf)
- {
- ngx_addr_t addr;
- in_addr_t addr4;
- struct in6_addr addr6;
- struct sockaddr_in *sin;
- struct sockaddr_in6 *sin6;
- addr.sockaddr = s->connection->sockaddr;
- addr.socklen = s->connection->socklen;
-
- switch (addr.sockaddr->sa_family) {
- case AF_INET:
-
- 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_stream_geoip_country_variable(ngx_stream_session_t *s,
- ngx_stream_variable_value_t *v, uintptr_t data)
- {
- ngx_stream_geoip_variable_handler_pt handler =
- ngx_stream_geoip_country_functions[data];
- #if (NGX_HAVE_GEOIP_V6)
- ngx_stream_geoip_variable_handler_v6_pt handler_v6 =
- ngx_stream_geoip_country_v6_functions[data];
- #endif
- const char *val;
- ngx_stream_geoip_conf_t *gcf;
- gcf = ngx_stream_get_module_main_conf(s, ngx_stream_geoip_module);
- if (gcf->country == NULL) {
- goto not_found;
- }
- #if (NGX_HAVE_GEOIP_V6)
- val = gcf->country_v6
- ? handler_v6(gcf->country, ngx_stream_geoip_addr_v6(s, gcf))
- : handler(gcf->country, ngx_stream_geoip_addr(s, gcf));
- #else
- val = handler(gcf->country, ngx_stream_geoip_addr(s, 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_stream_geoip_org_variable(ngx_stream_session_t *s,
- ngx_stream_variable_value_t *v, uintptr_t data)
- {
- size_t len;
- char *val;
- ngx_stream_geoip_conf_t *gcf;
- gcf = ngx_stream_get_module_main_conf(s, ngx_stream_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_stream_geoip_addr_v6(s, gcf))
- : GeoIP_name_by_ipnum(gcf->org,
- ngx_stream_geoip_addr(s, gcf));
- #else
- val = GeoIP_name_by_ipnum(gcf->org, ngx_stream_geoip_addr(s, gcf));
- #endif
- if (val == NULL) {
- goto not_found;
- }
- len = ngx_strlen(val);
- v->data = ngx_pnalloc(s->connection->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_stream_geoip_city_variable(ngx_stream_session_t *s,
- ngx_stream_variable_value_t *v, uintptr_t data)
- {
- char *val;
- size_t len;
- GeoIPRecord *gr;
- gr = ngx_stream_geoip_get_city_record(s);
- 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(s->connection->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_stream_geoip_region_name_variable(ngx_stream_session_t *s,
- ngx_stream_variable_value_t *v, uintptr_t data)
- {
- size_t len;
- const char *val;
- GeoIPRecord *gr;
- gr = ngx_stream_geoip_get_city_record(s);
- 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(s->connection->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_stream_geoip_city_float_variable(ngx_stream_session_t *s,
- ngx_stream_variable_value_t *v, uintptr_t data)
- {
- float val;
- GeoIPRecord *gr;
- gr = ngx_stream_geoip_get_city_record(s);
- if (gr == NULL) {
- v->not_found = 1;
- return NGX_OK;
- }
- v->data = ngx_pnalloc(s->connection->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;
- v->valid = 1;
- v->no_cacheable = 0;
- v->not_found = 0;
- GeoIPRecord_delete(gr);
- return NGX_OK;
- }
- static ngx_int_t
- ngx_stream_geoip_city_int_variable(ngx_stream_session_t *s,
- ngx_stream_variable_value_t *v, uintptr_t data)
- {
- int val;
- GeoIPRecord *gr;
- gr = ngx_stream_geoip_get_city_record(s);
- if (gr == NULL) {
- v->not_found = 1;
- return NGX_OK;
- }
- v->data = ngx_pnalloc(s->connection->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;
- v->valid = 1;
- v->no_cacheable = 0;
- v->not_found = 0;
- GeoIPRecord_delete(gr);
- return NGX_OK;
- }
- static GeoIPRecord *
- ngx_stream_geoip_get_city_record(ngx_stream_session_t *s)
- {
- ngx_stream_geoip_conf_t *gcf;
- gcf = ngx_stream_get_module_main_conf(s, ngx_stream_geoip_module);
- if (gcf->city) {
- #if (NGX_HAVE_GEOIP_V6)
- return gcf->city_v6
- ? GeoIP_record_by_ipnum_v6(gcf->city,
- ngx_stream_geoip_addr_v6(s, gcf))
- : GeoIP_record_by_ipnum(gcf->city,
- ngx_stream_geoip_addr(s, gcf));
- #else
- return GeoIP_record_by_ipnum(gcf->city, ngx_stream_geoip_addr(s, gcf));
- #endif
- }
- return NULL;
- }
- static ngx_int_t
- ngx_stream_geoip_add_variables(ngx_conf_t *cf)
- {
- ngx_stream_variable_t *var, *v;
- for (v = ngx_stream_geoip_vars; v->name.len; v++) {
- var = ngx_stream_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_stream_geoip_create_conf(ngx_conf_t *cf)
- {
- ngx_pool_cleanup_t *cln;
- ngx_stream_geoip_conf_t *conf;
- conf = ngx_pcalloc(cf->pool, sizeof(ngx_stream_geoip_conf_t));
- if (conf == NULL) {
- return NULL;
- }
- cln = ngx_pool_cleanup_add(cf->pool, 0);
- if (cln == NULL) {
- return NULL;
- }
- cln->handler = ngx_stream_geoip_cleanup;
- cln->data = conf;
- return conf;
- }
- static char *
- ngx_stream_geoip_country(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
- {
- ngx_stream_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_stream_geoip_org(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
- {
- ngx_stream_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_stream_geoip_city(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
- {
- ngx_stream_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 void
- ngx_stream_geoip_cleanup(void *data)
- {
- ngx_stream_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);
- }
- }
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