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 1.14 2006/03/27 18:09:46 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. *)
39 None -> "hostid = ? and name = ?", [Some hostid; Some name]
41 "hostid = ? and (name = ? or name_deleted = ?) and id = ?",
42 [Some hostid; Some name; Some name; Some version] in
45 dbh#prepare_cached ("select content, mime_type, name is null as deleted
50 let data, mime_type, deleted =
52 (match sth#fetch1 () with
53 [ `Binary data; Some mime_type; `Bool deleted ] ->
54 data, mime_type, deleted
57 Not_found -> raise (HttpError cHTTP_NOT_FOUND) in
59 (* If deleted, refuse to serve this file except if called from the site. *)
62 try Table.get (Request.headers_in r) "Referer" with Not_found -> "" in
64 try String.find referer hostname; true
65 with Invalid_string -> false in
68 prerr_endline "file.ml: bandwidth theft avoided";
69 raise (HttpError cHTTP_NOT_FOUND)
73 if version <> None then
74 (* Set a medium-length expiry time on this resource. *)
75 Table.set (Request.headers_out r) "Expires" (Expires.medium ());
77 (* Content-length header. *)
78 Table.set (Request.headers_out r) "Content-Length"
79 (Int32.to_string (String.length data));
81 q#header ~content_type:mime_type ();
82 ignore (print_string r data)
85 register_script ~restrict:[CanView] run