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98 lines
3.7 KiB
98 lines
3.7 KiB
<?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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* Loader for resource files within TinyMCE plugins.
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*
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* This loader handles requests which have the plugin version number in. These
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* requests are set to never expire from cache, to improve performance. Only
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* files within the 'tinymce' folder of the plugin will be served.
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*
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* Note there are no access checks in this script - you do not have to be
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* logged in to retrieve the plugin resource files.
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*
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* @package editor_tinymce
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* @copyright 2012 The Open University
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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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define('NO_MOODLE_COOKIES', true);
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require_once('../../../../config.php');
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require_once($CFG->dirroot . '/lib/filelib.php');
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require_once($CFG->dirroot . '/lib/jslib.php');
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// Safely get slash params (cleaned using PARAM_PATH, without /../).
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$path = get_file_argument();
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// Param must be of the form [plugin]/[version]/[path] where path is a relative
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// path inside the plugin tinymce folder.
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$matches = array();
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if (!preg_match('~^/([a-z0-9_]+)/((?:[0-9.]+)|-1)(/.*)$~', $path, $matches)) {
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print_error('filenotfound');
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}
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list($junk, $tinymceplugin, $version, $innerpath) = $matches;
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// Note that version number is totally ignored, user can specify anything,
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// except for the difference between '-1' and anything else.
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// Check the file exists.
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$pluginfolder = $CFG->dirroot . '/lib/editor/tinymce/plugins/' . $tinymceplugin;
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$file = $pluginfolder . '/tinymce' .$innerpath;
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if (!file_exists($file)) {
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print_error('filenotfound');
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}
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// We don't actually care what the version number is but there is a special
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// case for '-1' which means, set the files to not be cached.
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$allowcache = ($version !== '-1');
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if ($allowcache) {
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// Set it to expire a year later. Note that this means we should never get
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// If-Modified-Since requests so there is no need to handle them specially.
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header('Expires: ' . date('r', time() + 365 * 24 * 3600));
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header('Cache-Control: max-age=' . 365 * 24 * 3600 . ', immutable');
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// Pragma is set to no-cache by default so must be overridden.
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header('Pragma:');
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}
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// Get the right MIME type.
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$mimetype = mimeinfo('type', $file);
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// For JS files, these can be minified and stored in cache.
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if ($mimetype === 'application/x-javascript' && $allowcache) {
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// The cached file is stored without version number etc. This is okay
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// because $CFG->cachedir is cleared each time there is a plugin update,
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// such as a new version of a tinymce plugin.
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// Flatten filename and include cache location.
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$cache = $CFG->cachedir . '/editor_tinymce/pluginjs';
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$cachefile = $cache . '/' . $tinymceplugin .
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str_replace('/', '_', $innerpath);
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// If it doesn't exist, minify it and save to that location.
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if (!file_exists($cachefile)) {
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$content = core_minify::js_files(array($file));
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js_write_cache_file_content($cachefile, $content);
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}
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$file = $cachefile;
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} else if ($mimetype === 'text/html') {
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header('X-UA-Compatible: IE=edge');
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}
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// Serve file.
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header('Content-Length: ' . filesize($file));
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header('Content-Type: ' . $mimetype);
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readfile($file);
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