| 1 |
efrain |
1 |
<?php
|
|
|
2 |
// This file is part of Moodle - http://moodle.org/
|
|
|
3 |
//
|
|
|
4 |
// Moodle is free software: you can redistribute it and/or modify
|
|
|
5 |
// it under the terms of the GNU General Public License as published by
|
|
|
6 |
// the Free Software Foundation, either version 3 of the License, or
|
|
|
7 |
// (at your option) any later version.
|
|
|
8 |
//
|
|
|
9 |
// Moodle is distributed in the hope that it will be useful,
|
|
|
10 |
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
11 |
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
12 |
// GNU General Public License for more details.
|
|
|
13 |
//
|
|
|
14 |
// You should have received a copy of the GNU General Public License
|
|
|
15 |
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
|
|
|
16 |
|
|
|
17 |
|
|
|
18 |
/**
|
|
|
19 |
* A script to serve files from web service client
|
|
|
20 |
*
|
|
|
21 |
* @package core_webservice
|
|
|
22 |
* @copyright 2011 Dongsheng Cai <dongsheng@moodle.com>
|
|
|
23 |
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
|
|
24 |
*/
|
|
|
25 |
|
|
|
26 |
/**
|
|
|
27 |
* AJAX_SCRIPT - exception will be converted into JSON
|
|
|
28 |
*/
|
|
|
29 |
define('AJAX_SCRIPT', true);
|
|
|
30 |
|
|
|
31 |
/**
|
|
|
32 |
* NO_MOODLE_COOKIES - we don't want any cookie
|
|
|
33 |
*/
|
|
|
34 |
define('NO_MOODLE_COOKIES', true);
|
|
|
35 |
|
|
|
36 |
|
|
|
37 |
require_once(__DIR__ . '/../config.php');
|
|
|
38 |
require_once($CFG->libdir . '/filelib.php');
|
|
|
39 |
require_once($CFG->dirroot . '/webservice/lib.php');
|
|
|
40 |
|
|
|
41 |
// Allow CORS requests.
|
|
|
42 |
header('Access-Control-Allow-Origin: *');
|
|
|
43 |
|
|
|
44 |
// Authenticate the user.
|
|
|
45 |
$token = required_param('token', PARAM_ALPHANUM);
|
|
|
46 |
// Use preview in order to display the preview of the file (e.g. "thumb" for a thumbnail).
|
|
|
47 |
$preview = optional_param('preview', null, PARAM_ALPHANUM);
|
|
|
48 |
// Offline means download the file from the repository and serve it, even if it was an external link.
|
|
|
49 |
// The repository may have to export the file to an offline format.
|
|
|
50 |
$offline = optional_param('offline', 0, PARAM_BOOL);
|
|
|
51 |
|
|
|
52 |
$webservicelib = new webservice();
|
|
|
53 |
$authenticationinfo = $webservicelib->authenticate_user($token);
|
|
|
54 |
|
|
|
55 |
// Check the service allows file download.
|
|
|
56 |
$enabledfiledownload = (int) ($authenticationinfo['service']->downloadfiles);
|
|
|
57 |
if (empty($enabledfiledownload)) {
|
|
|
58 |
throw new webservice_access_exception('Web service file downloading must be enabled in external service settings');
|
|
|
59 |
}
|
|
|
60 |
|
|
|
61 |
// Finally we can serve the file :).
|
|
|
62 |
$relativepath = get_file_argument();
|
|
|
63 |
file_pluginfile($relativepath, 0, $preview, $offline);
|