feature: applied the invalid_referer_hash patch to the nginx core to make the $invalid_referer variable accessible in embedded dynamic languages like Perl and Lua. thanks Fry-kun for requesting this.

patches/nginx-1.2.8-invalid_referer_hash.patch

@@ -0,0 +1,12 @@
+--- nginx-1.2.8/src/http/modules/ngx_http_referer_module.c	2013-05-06 03:27:10.000000000 -0700
++++ nginx-1.2.8-patched/src/http/modules/ngx_http_referer_module.c	2013-05-21 16:04:49.340286168 -0700
+@@ -396,8 +396,7 @@ ngx_http_valid_referers(ngx_conf_t *cf,
+ 
+     ngx_str_set(&name, "invalid_referer");
+ 
+-    var = ngx_http_add_variable(cf, &name,
+-                                NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOHASH);
++    var = ngx_http_add_variable(cf, &name, NGX_HTTP_VAR_CHANGEABLE);
+     if (var == NULL) {
+         return NGX_CONF_ERROR;
+     }

util/mirror-tarballs

@@ -150,6 +150,10 @@ echo "$info_txt applying patches/nginx-$main_ver-cve-2013-2070.patch for nginx"
 patch -p0 < $root/patches/nginx-$main_ver-cve-2013-2070.patch || exit 1
 echo
 
+echo "$info_txt applying patches/nginx-$main_ver-invalid_referer_hash.patch for nginx"
+patch -p1 < $root/patches/nginx-$main_ver-invalid_referer_hash.patch || exit 1
+echo
+
 rm -f *.patch || exit 1
 
 cd .. || exit 1