Add a getter for the HTTP referer

src/libfast/request.c

@@ -231,6 +231,14 @@ static void redirect(private_request_t *this, char *fmt, ...)
 	FCGX_FPrintF(this->req.out, "\n\n");
 }
 
+/**
+ * Implementation of request_t.get_referer.
+ */
+static char* get_referer(private_request_t *this)
+{
+	return FCGX_GetParam("HTTP_REFERER", this->req.envp);
+}
+
 /**
  * Implementation of request_t.to_referer.
  */
@@ -396,6 +404,7 @@ request_t *request_create(int fd, bool debug)
 	this->public.session_closed = (bool(*)(request_t*))session_closed;
 	this->public.close_session = (void(*)(request_t*))close_session;
 	this->public.redirect = (void(*)(request_t*, char *fmt,...))redirect;
+	this->public.get_referer = (char*(*)(request_t*))get_referer;
 	this->public.to_referer = (void(*)(request_t*))to_referer;
 	this->public.render = (void(*)(request_t*,char*))render;
 	this->public.streamf = (int(*)(request_t*, char *format, ...))streamf;

src/libfast/request.h

@@ -105,6 +105,13 @@ struct request_t {
 	 */
 	void (*redirect)(request_t *this, char *fmt, ...);
 
+	/**
+	 * Get the HTTP referer.
+	 *
+	 * @return			HTTP referer
+	 */
+	char* (*get_referer)(request_t *this);
+
 	/**
 	 * Redirect the client to the referer.
 	 */