General developer forum

Hi Matteo,

Thanks again.

I'm putting together some demos that show a few of the things the new SWF Activity Module can do (a work in progress and pretty incoherent so far ). You can see how it is here: http://m2.matbury.com/course/view.php?id=3

To recap, the mod/swf/content.php code I'm experimenting with now is pretty much what you've suggested, but with different error reporting:

require_once('../../config.php');
require_once('../../lib/filelib.php'); // for mimeinfo() and send_file()

require_login(); // Users must be logged in to access files

global $CFG;
    
// (Optional) Clean the SWF content directory setting.
$CFG->swf_content_dir = clean_param($CFG->swf_content_dir, PARAM_PATH);
// Remove trailing slash(es).
$CFG->swf_content_dir = rtrim($CFG->swf_content_dir, '/');
// Get the relative path of the requested content.
$swf_relative_path = get_file_argument();
if (empty($CFG->swf_content_dir) || !$swf_relative_path) {
    header('HTTP/1.0 404 Not Found');
    exit('404 Error: File not found. SWF settings and/or path to file is/are not set correctly.');
} else if ($swf_relative_path{0} != '/') {
    // Relative path must start with '/'.
    header('HTTP/1.0 404 Not Found');
    exit('404 Error: File not found. Relative paths must start with a /');
}

$swf_data_path = realpath($CFG->dataroot . $CFG->swf_content_dir . $swf_relative_path);
// (Paranoid) Content will be served just from the SWF content dir.
if (strpos($swf_data_path, realpath($CFG->dataroot . $CFG->swf_content_dir)) === 0) {
    $swf_data_info = pathinfo($swf_data_path);
    $swf_mime_type = mimeinfo('type', $swf_data_info['basename']);
    send_file($swf_data_path, $swf_data_info['basename'], 'default', 0, false, false, $swf_mime_type, false);
} else {
    header('HTTP/1.0 404 Not Found');
    exit('404 Error: File not found');
}

Love the "Paranoid" bit

Re: error reporting, I'm going to think about a human and Flash friendly way to manage that. Pure text that is meaningful to both users and Flash, and that Flash apps can display when things go wrong... maybe with language support?, i.e. get_string('filenotfound','swf'), /swf/lang/en/swf.php::$string['filenotfound'] = 'FILE_NOT_FOUND|404: File not found'; so that Flash apps can split at "|", read the type of error (FILE_NOT_FOUND) as a constant and, if desirable, display the message (404: File not found) to users.

Hopefully, this script will also be useful to others who want to implement manageable, stable, reliable, predictable media libraries within Moodle.