(* COCANWIKI - a wiki written in Objective CAML.
 * Written by Richard W.M. Jones <rich@merjis.com>.
 * Copyright (C) 2004 Merjis Ltd.
 * $Id: email_change.ml,v 1.1 2004/10/23 15:00:14 rich Exp $
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *)

open Apache
open Registry
open Cgi
open Printf

open Cocanwiki
open Cocanwiki_ok

let run r (q : cgi) (dbh : Dbi.connection) hostid _ _ =
  (* Get the key in the pending_email_changes table. *)
  let key = q#param "key" in

  let sth = dbh#prepare_cached "select userid, email from pending_email_changes
                                 where key = ?" in
  sth#execute [`String key];

  let userid, email =
    try
      (match sth#fetch1 () with
	   [ `Int userid; `String email ] -> userid, email
	 | _ -> assert false)
    with
	Not_found ->
	  error ~title:"Already verified"
	    q ("It looks like you have already verified this email address.");
	  return () in

  (* Update the database. *)
  let sth = dbh#prepare_cached "delete from pending_email_changes
                                 where key = ?" in
  sth#execute [`String key];

  let sth = dbh#prepare_cached "update users set email = ? where id = ?" in
  sth#execute [`String email; `Int userid];

  dbh#commit ();

  ok ~title:"Email address verified"
    q "Thank you for verifying your new email address."

let () =
  register_script run