[nginx] Stream: geoip module.

Vladimir Homutov vl at nginx.com
Tue Jul 12 14:37:56 UTC 2016


details:   http://hg.nginx.org/nginx/rev/558db057adaa
branches:  
changeset: 6630:558db057adaa
user:      Vladimir Homutov <vl at nginx.com>
date:      Tue Jul 12 17:34:43 2016 +0300
description:
Stream: geoip module.

diffstat:

 auto/modules                         |   10 +
 auto/options                         |    6 +
 src/stream/ngx_stream_geoip_module.c |  814 +++++++++++++++++++++++++++++++++++
 3 files changed, 830 insertions(+), 0 deletions(-)

diffs (868 lines):

diff -r 8ed51b02f655 -r 558db057adaa auto/modules
--- a/auto/modules	Tue Jul 12 17:34:40 2016 +0300
+++ b/auto/modules	Tue Jul 12 17:34:43 2016 +0300
@@ -1024,6 +1024,16 @@ if [ $STREAM != NO ]; then
         . auto/module
     fi
 
+    if [ $STREAM_GEOIP != NO ]; then
+        ngx_module_name=ngx_stream_geoip_module
+        ngx_module_deps=
+        ngx_module_srcs=src/stream/ngx_stream_geoip_module.c
+        ngx_module_libs=GEOIP
+        ngx_module_link=$STREAM_GEOIP
+
+        . auto/module
+    fi
+
     if [ $STREAM_MAP = YES ]; then
         ngx_module_name=ngx_stream_map_module
         ngx_module_deps=
diff -r 8ed51b02f655 -r 558db057adaa auto/options
--- a/auto/options	Tue Jul 12 17:34:40 2016 +0300
+++ b/auto/options	Tue Jul 12 17:34:43 2016 +0300
@@ -117,6 +117,7 @@ STREAM=NO
 STREAM_SSL=NO
 STREAM_LIMIT_CONN=YES
 STREAM_ACCESS=YES
+STREAM_GEOIP=NO
 STREAM_MAP=YES
 STREAM_RETURN=YES
 STREAM_UPSTREAM_HASH=YES
@@ -293,6 +294,9 @@ use the \"--with-mail_ssl_module\" optio
         --with-stream)                   STREAM=YES                 ;;
         --with-stream=dynamic)           STREAM=DYNAMIC             ;;
         --with-stream_ssl_module)        STREAM_SSL=YES             ;;
+        --with-stream_geoip_module)      STREAM_GEOIP=YES           ;;
+        --with-stream_geoip_module=dynamic)
+                                         STREAM_GEOIP=DYNAMIC       ;;
         --without-stream_limit_conn_module)
                                          STREAM_LIMIT_CONN=NO       ;;
         --without-stream_access_module)  STREAM_ACCESS=NO           ;;
@@ -494,6 +498,8 @@ cat << END
   --with-stream                      enable TCP/UDP proxy module
   --with-stream=dynamic              enable dynamic TCP/UDP proxy module
   --with-stream_ssl_module           enable ngx_stream_ssl_module
+  --with-stream_geoip_module         enable ngx_stream_geoip_module
+  --with-stream_geoip_module=dynamic enable dynamic ngx_stream_geoip_module
   --without-stream_limit_conn_module disable ngx_stream_limit_conn_module
   --without-stream_access_module     disable ngx_stream_access_module
   --without-stream_map_module        disable ngx_stream_map_module
diff -r 8ed51b02f655 -r 558db057adaa src/stream/ngx_stream_geoip_module.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/stream/ngx_stream_geoip_module.c	Tue Jul 12 17:34:43 2016 +0300
@@ -0,0 +1,814 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) Nginx, Inc.
+ */
+
+
+#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,        /* preconfiguration */
+    NULL,                                  /* postconfiguration */
+
+    ngx_stream_geoip_create_conf,          /* create main configuration */
+    NULL,                                  /* init main configuration */
+
+    NULL,                                  /* create server configuration */
+    NULL                                   /* merge server configuration */
+};
+
+
+ngx_module_t  ngx_stream_geoip_module = {
+    NGX_MODULE_V1,
+    &ngx_stream_geoip_module_ctx,          /* module context */
+    ngx_stream_geoip_commands,             /* module directives */
+    NGX_STREAM_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_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_null_string, NULL, NULL, 0, 0, 0 }
+};
+
+
+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;
+    /* addr.name = s->connection->addr_text; */
+
+#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_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;
+    /* addr.name = s->connection->addr_text; */
+
+    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_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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