1 (* COCANWIKI - a wiki written in Objective CAML.
2 * Written by Richard W.M. Jones <rich@merjis.com>.
3 * Copyright (C) 2004 Merjis Ltd.
4 * $Id: cocanwiki_emailnotify.ml,v 1.2 2004/10/21 19:54:29 rich Exp $
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; see the file COPYING. If not, write to
18 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
29 (* This is where we coordinate email notification from various
30 * scripts which create or update the wiki.
32 let email_notify ~subject ~body ?user (dbh : Dbi.connection) hostid =
33 (* Get own userid, if we have it. Don't want to send email
34 * notification back to the person who changed the page. If
35 * we don't have a userid, set it to 0, because no real user can
42 | Some (User (userid, _, _)) -> userid in
44 (* Send a change email to everyone who hasn't opted out using
45 * their preferences. This behaviour replaces the old
46 * 'email_notify' table.
48 let sth = dbh#prepare_cached "select email, name from users
49 where hostid = ? and id <> ? and email_notify
50 and email is not null" in
51 sth#execute [`Int hostid; `Int own_userid];
53 let to_addr = sth#map (function
54 | [`String email; `String name] ->
55 "\"" ^ name ^ "\" <" ^ email ^ ">"
56 | _ -> assert false) in
58 if to_addr <> [] then (
59 (* Get the from address of the user, if available. *)
63 | Some Anonymous -> None
64 | Some (User (userid, _, _)) ->
65 let sth = dbh#prepare_cached "select email from users
66 where hostid = ? and id = ?" in
67 sth#execute [`Int hostid; `Int userid];
69 match sth#fetch1 () with
71 | [ `String email ] -> Some email
72 | _ -> assert false in
74 (* Prepare the body of the message. The assumption is that
75 * this takes time and database access, so we defer the creation
76 * of the body until we know that someone needs to be notified.
80 let subject = "Site notice: " ^ subject in
83 Sendmail.send_mail ~subject ~to_addr ~body ?from ()