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: image.ml,v 1.7 2004/10/04 15:19:56 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 let run r (q : cgi) (dbh : Dbi.connection) hostid _ _ =
30 let image = q#param "image" in
31 let is_thumbnail = q#param_true "thumbnail" in
33 try Some (int_of_string (q#param "version")) with Not_found -> None in
35 (* Get the image and its MIME type. *)
37 if not is_thumbnail then "image, mime_type"
38 else "thumbnail, tn_mime_type" in
41 None -> "hostid = ? and name = ?", [`Int hostid; `String image]
43 "hostid = ? and (name = ? or name_deleted = ?) and id = ?",
44 [`Int hostid; `String image; `String image; `Int version] in
46 let sth = dbh#prepare_cached
47 ("select " ^ what ^ " from images where " ^ where) in
51 match sth#fetch1 () with
52 [ `Binary data; `String mime_type ] ->
54 | _ -> assert false in
56 if version <> None then
57 (* Set a medium-length expiry time on this resource. *)
58 Table.set (Request.headers_out r) "Expires" (Expires.medium ());
60 q#header ~content_type:mime_type ();
64 register_script ~restrict:[CanView] run