2 // This function fetches files from the data directory
3 // Syntax: file.php/courseid/dir/.../dir/filename.ext
6 require("files/mimetypes.php");
10 if (isset($file)) { // workaround for situations where / syntax doesn't work
15 error("This script DEPENDS on PATH_INFO being available. Read the README.");
18 $args = get_slash_arguments();
19 $numargs = count($args);
20 $courseid = (integer)$args[0];
22 $course = get_record("course", "id", $courseid);
24 if ($course->category) {
25 require_login($courseid);
28 // it's OK to get here if no course was specified
30 $pathname = "$CFG->dataroot$PATH_INFO";
31 $filename = $args[$numargs-1];
33 $mimetype = mimeinfo("type", $filename);
35 if (file_exists($pathname)) {
36 $lastmodified = filemtime($pathname);
38 header("Last-Modified: " . gmdate("D, d M Y H:i:s", $lastmodified) . " GMT");
39 header("Expires: " . gmdate("D, d M Y H:i:s", time() + $lifetime) . " GMT");
40 header("Cache-control: max_age = $lifetime"); // a day
42 header("Content-Length: ".filesize($pathname));
43 header("Content-type: $mimetype");
44 readfile("$pathname");
46 error("Sorry, but the file you are looking for was not found", "course/view.php?id=$courseid");