Defined in tcl/events-defs.tclIf the current page isn't secure, will ns_redirect the user to the https version of the page. If the nsssl module isn't installed, the function will return 0 but not try to redirect. Uses the nssssl/Port entry in the .ini file to guess the secure port (or will leave it off if the port isn't specified (in which case we're using the default https port)).