/**
* handler for the plugins shortcode (e.g. [link2moodle cohort='abc123']my link text[/link2moodle])
* note: applies do_shortcode() to content to allow other plugins to be handled on links
* when unauthenticated just returns the inner content (e.g. my link text) without a link
*/
function wp2moodle_handler($atts, $content = null)
{
// clone attribs over any default values, builds variables out of them so we can use them below
// $class => css class to put on link we build
// $cohort => text id of the moodle cohort in which to enrol this user
// $group => text id of the moodle group in which to enrol this user
// $authtext => string containing text content to display when not logged on (defaults to content between tags when empty / missing)
extract(shortcode_atts(array("cohort" => '', "group" => '', "class" => 'wp2moodle', "target" => '_self', "authtext" => ''), $atts));
if ($content == null || !is_user_logged_in()) {
if (trim($authtext) == "") {
$url = do_shortcode($content);
// return unlinked content (value between start and end tag)
} else {
$url = do_shortcode($authtext);
// return authtext (value of attribute, if set)
}
} else {
// url = moodle_url + "?data=" + <encrypted-value>
$url = '<a target="' . esc_attr($target) . '" class="' . esc_attr($class) . '" href="' . wp2moodle_generate_hyperlink($cohort, $group) . '">' . do_shortcode($content) . '</a>';
// hyperlinked content
}
return $url;
}
function wp2m_download_url($url, $order, $download)
{
if (strpos($url, 'wp2moodle.txt') !== false) {
// mp url is full url = including http:// and so on... we want the file url
$path = $_SERVER['DOCUMENT_ROOT'] . parse_url($url)["path"];
$cohort = "";
$group = "";
$data = file($path);
// now it's an array!
foreach ($data as $row) {
$pair = explode("=", $row);
switch (strtolower(trim($pair[0]))) {
case "group":
$group = trim(str_replace(array('\'', '"'), '', $pair[1]));
break;
case "cohort":
$cohort = trim(str_replace(array('\'', '"'), '', $pair[1]));
break;
case "course":
$cohort = trim(str_replace(array('\'', '"'), '', $pair[1]));
break;
}
}
$url = wp2moodle_generate_hyperlink($cohort, $group, $course);
if (ob_get_contents()) {
ob_clean();
}
header('Location: ' . $url, true, 301);
// redirect to this url
exit;
}
return $url;
}
