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64 lines
2.2 KiB
64 lines
2.2 KiB
2 years ago
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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* A script to serve files from web service client
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*
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* @package core_webservice
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* @copyright 2011 Dongsheng Cai <dongsheng@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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/**
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* AJAX_SCRIPT - exception will be converted into JSON
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*/
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define('AJAX_SCRIPT', true);
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/**
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* NO_MOODLE_COOKIES - we don't want any cookie
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*/
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define('NO_MOODLE_COOKIES', true);
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require_once(__DIR__ . '/../config.php');
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require_once($CFG->libdir . '/filelib.php');
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require_once($CFG->dirroot . '/webservice/lib.php');
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// Allow CORS requests.
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header('Access-Control-Allow-Origin: *');
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// Authenticate the user.
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$token = required_param('token', PARAM_ALPHANUM);
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// Use preview in order to display the preview of the file (e.g. "thumb" for a thumbnail).
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$preview = optional_param('preview', null, PARAM_ALPHANUM);
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// Offline means download the file from the repository and serve it, even if it was an external link.
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// The repository may have to export the file to an offline format.
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$offline = optional_param('offline', 0, PARAM_BOOL);
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$webservicelib = new webservice();
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$authenticationinfo = $webservicelib->authenticate_user($token);
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// Check the service allows file download.
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$enabledfiledownload = (int) ($authenticationinfo['service']->downloadfiles);
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if (empty($enabledfiledownload)) {
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throw new webservice_access_exception('Web service file downloading must be enabled in external service settings');
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}
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// Finally we can serve the file :).
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$relativepath = get_file_argument();
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file_pluginfile($relativepath, 0, $preview, $offline);
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