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55834476c4
When serving Moodle YUI files, including just moodlelib.php is not enough any more. We need the full setup in order to use MUC. Please note that cookies are disabled in these two scripts. This may make cache_store::MODE_SESSION caches unavailable. We do not expect they will be needed here.
134 lines
4.9 KiB
PHP
134 lines
4.9 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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// disable moodle specific debug messages and any errors in output,
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// comment out when debugging or better look into error log!
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define('NO_DEBUG_DISPLAY', true);
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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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if ($slashargument = min_get_slash_argument()) {
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$path = ltrim($slashargument, '/');
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} else {
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$path = min_optional_param('file', '', 'SAFEPATH');
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}
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$etag = sha1($path);
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$parts = explode('/', $path);
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$version = array_shift($parts);
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if ($version == 'moodle' && count($parts) >= 3) {
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if (!defined('ABORT_AFTER_CONFIG_CANCEL')) {
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define('ABORT_AFTER_CONFIG_CANCEL', true);
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define('NO_UPGRADE_CHECK', true);
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define('NO_MOODLE_COOKIES', true);
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require($CFG->libdir.'/setup.php');
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}
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$frankenstyle = array_shift($parts);
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$module = array_shift($parts);
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$image = array_pop($parts);
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$subdir = join('/', $parts);
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$dir = get_component_directory($frankenstyle);
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$imagepath = $dir.'/yui/'.$module.'/assets/skins/sam/'.$image;
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} else if ($version == 'gallery' && count($parts)==3) {
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list($module, $version, $image) = $parts;
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$imagepath = "$CFG->dirroot/lib/yui/gallery/$module/$version/assets/skins/sam/$image";
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} else if (count($parts) == 1 && ($version == $CFG->yui3version || $version == $CFG->yui2version)) {
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list($image) = $parts;
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if ($version == $CFG->yui3version) {
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$imagepath = "$CFG->dirroot/lib/yuilib/$CFG->yui3version/build/assets/skins/sam/$image";
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} else {
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$imagepath = "$CFG->dirroot/lib/yuilib/2in3/$CFG->yui2version/build/assets/skins/sam/$image";
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}
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} else {
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yui_image_not_found();
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}
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if (!file_exists($imagepath)) {
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yui_image_not_found();
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}
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$pathinfo = pathinfo($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: $mimetype = 'document/unknown';
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}
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// if they are requesting a revision that's not -1, and they have supplied an
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// If-Modified-Since header, we can send back a 304 Not Modified since the
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// content never changes (the rev number is increased any time the content changes)
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if (strpos($path, '/-1/') === false and (!empty($_SERVER['HTTP_IF_NONE_MATCH']) || !empty($_SERVER['HTTP_IF_MODIFIED_SINCE']))) {
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$lifetime = 60*60*24*360; // 1 year, we do not change YUI versions often, there are a few custom yui modules
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header('HTTP/1.1 304 Not Modified');
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header('Last-Modified: '. gmdate('D, d M Y H:i:s', filemtime($imagepath)) .' GMT');
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header('Expires: '. gmdate('D, d M Y H:i:s', time() + $lifetime) .' GMT');
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header('Cache-Control: public, max-age='.$lifetime);
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header('Content-Type: '.$mimetype);
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header('Etag: '.$etag);
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die;
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}
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yui_image_cached($imagepath, $imagename, $mimetype, $etag);
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function yui_image_cached($imagepath, $imagename, $mimetype, $etag) {
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global $CFG;
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require("$CFG->dirroot/lib/xsendfilelib.php");
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$lifetime = 60*60*24*360; // 1 year, we do not change YUI versions often, there are a few custom yui modules
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header('Content-Disposition: inline; filename="'.$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() + $lifetime) .' GMT');
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header('Pragma: ');
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header('Cache-Control: public, max-age=315360000');
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header('Accept-Ranges: none');
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header('Content-Type: '.$mimetype);
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header('Content-Length: '.filesize($imagepath));
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header('Etag: '.$etag);
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if (xsendfile($imagepath)) {
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die;
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}
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// no need to gzip already compressed images ;-)
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readfile($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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