mirror of
https://github.com/moodle/moodle.git
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88 lines
2.8 KiB
PHP
88 lines
2.8 KiB
PHP
<?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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* This file is responsible for serving of yui images
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*
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* @package moodlecore
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* @copyright 2009 Petr Skoda (skodak) {@link http://skodak.org}
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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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// we need just the values from config.php and minlib.php
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define('ABORT_AFTER_CONFIG', true);
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require('../config.php'); // this stops immediately at the beginning of lib/setup.php
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$path = min_optional_param('file', '', 'SAFEPATH');
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$parts = explode('/', $path);
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if (count($parts) != 2) {
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yui_image_not_found();
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}
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list($version, $image) = $parts;
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if ($version == $CFG->yui3version) {
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$imagepath = "$CFG->dirroot/lib/yui/$CFG->yui3version/build/assets/skins/sam/$image";
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} else if ($version == $CFG->yui2version) {
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$imagepath = "$CFG->dirroot/lib/yui/$CFG->yui2version/build/assets/skins/sam/$image";
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} else {
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yui_image_not_found();
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}
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if (!file_exists($imagepath)) {
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yui_image_not_found();
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}
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yui_image_cached($imagepath);
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function yui_image_cached($imagepath) {
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$lifetime = 60*60*24*300; // 300 days === forever
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$pathinfo = pathinfo($imagepath);
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$imagename = $pathinfo['filename'].'.'.$pathinfo['extension'];
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switch($pathinfo['extension']) {
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case 'gif' : $mimetype = 'image/gif'; break;
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case 'png' : $mimetype = 'image/png'; break;
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case 'jpg' : $mimetype = 'image/jpeg'; break;
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case 'jpeg' : $mimetype = 'image/jpeg'; break;
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case 'ico' : $mimetype = 'image/vnd.microsoft.icon'; break;
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default: $mimetype = 'document/unknown';
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}
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header('Content-Disposition: inline; filename="'.$imagename.'"');
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header('Last-Modified: '. gmdate('D, d M Y H:i:s', filemtime($imagepath)) .' GMT');
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header('Expires: '. gmdate('D, d M Y H:i:s', time() + $lifetime) .' GMT');
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header('Pragma: ');
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header('Cache-Control: max-age=315360000');
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header('Accept-Ranges: none');
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header('Content-Type: '.$mimetype);
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header('Content-Length: '.filesize($imagepath));
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// no need to gzip already compressed images ;-)
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readfile($imagepath);
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die;
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}
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function yui_image_not_found() {
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header('HTTP/1.0 404 not found');
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die('Image was not found, sorry.');
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}
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