(*
* Dynamic web page generation with Standard ML
* Copyright (C) 2003 Adam Chlipala
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*)
(* Main CGI program interface *)
functor MainFn (Templates : TEMPLATES) :> MAIN =
struct
val templates = foldl StringMap.insert' StringMap.empty Templates.templates
fun main (_, args) =
let
val _ = Cgi.init ()
val cgiFields = Cgi.cgi_fieldnames ()
fun mapper name = (name, valOf (Cgi.cgi_field_string name))
in
Web.pushParams (map mapper cgiFields);
case args of
[] => (print "Status: 500\nContent-type: text/html\n\n500 error500 error
No template was specified\n";
OS.Process.failure)
| (name::_) =>
(case StringMap.find (templates, name) of
NONE => (print "Status: 404\nContent-type: text/html\n\n404 error404 error
Template not found\n";
OS.Process.failure)
| SOME f => (f ();
Web.output ();
OS.Process.success))
end handle ex => (print "Status: 500\nContent-type: text/plain\n\nAn exception!\n\n";
app (fn s => print (s ^ "\n")) (SMLofNJ.exnHistory ex);
OS.Process.failure)
end