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: file.ml,v 1.16 2006/08/01 14:50:47 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.
31 let run r (q : cgi) dbh hostid {hostname = hostname} _ =
32 let name = q#param "name" in
34 try Some (Int32.of_string (q#param "version")) with Not_found -> None in
36 (* Get the file and its MIME type. *)
37 let data, mime_type, deleted =
42 PGSQL(dbh) "select content, mime_type, name is null as deleted
44 where hostid = $hostid and name = $name"
46 PGSQL(dbh) "select content, mime_type, name is null as deleted
48 where hostid = $hostid
49 and (name = $name or name_deleted = $name)
53 Not_found | ExtList.List.Empty_list | Failure "hd" ->
54 raise (HttpError cHTTP_NOT_FOUND) in
56 let deleted = Option.get deleted in
58 (* If deleted, refuse to serve this file except if called from the site. *)
61 try Table.get (Request.headers_in r) "Referer" with Not_found -> "" in
63 try ignore (String.find referer hostname); true
64 with Invalid_string -> false in
67 prerr_endline "file.ml: bandwidth theft avoided";
68 raise (HttpError cHTTP_NOT_FOUND)
72 if version <> None then
73 (* Set a medium-length expiry time on this resource. *)
74 Table.set (Request.headers_out r) "Expires" (Expires.medium ());
76 (* Content-length header. *)
77 Table.set (Request.headers_out r) "Content-Length"
78 (string_of_int (String.length data));
80 q#header ~content_type:mime_type ();
81 ignore (print_string r data)
84 register_script ~restrict:[CanView] run