new file mode 100644
--- /dev/null
+++ b/src/http/modules/ngx_http_log_handler.h
@@ -0,0 +1,41 @@
+#ifndef _NGX_HTTP_LOG_HANDLER_H_INCLUDED_
+#define _NGX_HTTP_LOG_HANDLER_H_INCLUDED_
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include <ngx_http.h>
+
+
+typedef struct {
+    int   dummy;
+} ngx_http_log_conf_t;
+
+
+typedef enum {
+
+    NGX_HTTP_LOG_HANDLER = 0,
+
+#if 0
+    /* the ngx_str_t field of the request */
+    NGX_HTTP_LOG_REQUEST_STR_FIELD,
+
+    /* the ngx_str_t field of the r->headers_in */
+    NGX_HTTP_LOG_REQUEST_HEADER_IN_FIELD,
+
+    /* the ngx_str_t field of the r->headers_out */
+    NGX_HTTP_LOG_REQUEST_HEADER_OUT_FIELD,
+#endif
+
+} ngx_http_log_code_e;
+
+
+typedef struct {
+    int      type;
+    int      size;
+    char  *(*handler) (ngx_http_request_t *r, char *p);
+    int      offset;
+} ngx_http_log_code_t;
+
+
+#endif /* _NGX_HTTP_LOG_HANDLER_H_INCLUDED_ */