nginx 0.1.29 *) Feature: the ngx_http_ssi_module supports "include virtual" command. *) Feature: the ngx_http_ssi_module supports the condition command like 'if expr="$NAME"' and "else" and "endif" commands. Only one nested level is supported. *) Feature: the ngx_http_ssi_module supports the DATE_LOCAL and DATE_GMT variables and "config timefmt" command. *) Feature: the "ssi_ignore_recycled_buffers" directive. *) Bugfix: the "echo" command did not show the default value for the empty QUERY_STRING variable. *) Change: the ngx_http_proxy_module was rewritten. *) Feature: the "proxy_redirect", "proxy_pass_request_headers", "proxy_pass_request_body", and "proxy_method" directives. *) Feature: the "proxy_set_header" directive. The "proxy_x_var" was canceled and must be replaced with the proxy_set_header directive. *) Change: the "proxy_preserve_host" is canceled and must be replaced with the "proxy_set_header Host $host" and the "proxy_redirect off" directives, the "proxy_set_header Host $host:$proxy_port" directive and the appropriate proxy_redirect directives. *) Change: the "proxy_set_x_real_ip" is canceled and must be replaced with the "proxy_set_header X-Real-IP $remote_addr" directive. *) Change: the "proxy_add_x_forwarded_for" is canceled and must be replaced with the "proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for" directive. *) Change: the "proxy_set_x_url" is canceled and must be replaced with the "proxy_set_header X-URL http://$host:$server_port$request_uri" directive. *) Feature: the "fastcgi_param" directive. *) Change: the "fastcgi_root", "fastcgi_set_var" and "fastcgi_params" directive are canceled and must be replaced with the fastcgi_param directives. *) Feature: the "index" directive can use the variables. *) Feature: the "index" directive can be used at http and server levels. *) Change: the last index only in the "index" directive can be absolute. *) Feature: the "rewrite" directive can use the variables. *) Feature: the "internal" directive. *) Feature: the CONTENT_LENGTH, CONTENT_TYPE, REMOTE_PORT, SERVER_ADDR, SERVER_PORT, SERVER_PROTOCOL, DOCUMENT_ROOT, SERVER_NAME, REQUEST_METHOD, REQUEST_URI, and REMOTE_USER variables. *) Change: nginx now passes the invalid lines in a client request headers or a backend response header. *) Bugfix: if the backend did not transfer response for a long time and the "send_timeout" was less than "proxy_read_timeout", then nginx returned the 408 response. *) Bugfix: the segmentation fault was occurred if the backend sent an invalid line in response header; bug appeared in 0.1.26. *) Bugfix: the segmentation fault may occurred in FastCGI fault tolerance configuration. *) Bugfix: the "expires" directive did not remove the previous "Expires" and "Cache-Control" headers. *) Bugfix: nginx did not take into account trailing dot in "Host" header line. *) Bugfix: the ngx_http_auth_module did not work under Linux. *) Bugfix: the rewrite directive worked incorrectly, if the arguments were in a request. *) Bugfix: nginx could not be built on MacOS X.

--- a/src/http/ngx_http_core_module.h
+++ b/src/http/ngx_http_core_module.h
@@ -49,6 +49,7 @@ typedef struct {
     ngx_array_t                index_handlers;
 
     ngx_hash_t                 headers_in_hash;
+    ngx_hash_t                 variables_hash;
 
     ngx_uint_t                 server_names_hash;
     ngx_uint_t                 server_names_hash_threshold;
@@ -56,6 +57,7 @@ typedef struct {
     size_t                     max_server_name_len;
 
     ngx_array_t                variables;        /* ngx_http_variable_t */
+    ngx_array_t                all_variables;    /* ngx_http_variable_t */
 } ngx_http_core_main_conf_t;
 
 
@@ -197,6 +199,7 @@ struct ngx_http_core_loc_conf_s {
 
     time_t        keepalive_header;        /* keepalive_timeout */
 
+    ngx_flag_t    internal;                /* internal */
     ngx_flag_t    sendfile;                /* sendfile */
     ngx_flag_t    tcp_nopush;              /* tcp_nopush */
     ngx_flag_t    tcp_nodelay;             /* tcp_nodelay */
@@ -230,6 +233,8 @@ ngx_int_t ngx_http_find_location_config(
 ngx_int_t ngx_http_set_content_type(ngx_http_request_t *r);
 ngx_int_t ngx_http_set_exten(ngx_http_request_t *r);
 
+ngx_int_t ngx_http_subrequest(ngx_http_request_t *r,
+    ngx_str_t *uri, ngx_str_t *args);
 ngx_int_t ngx_http_internal_redirect(ngx_http_request_t *r,
     ngx_str_t *uri, ngx_str_t *args);