/**
*
*
* @param \LTI_Tool_Provider $toolProvider
* @return bool|string
*/
public function doLaunch($toolProvider)
{
tklog('---> doLaunch() ');
// Check the user has an appropriate role
if ($toolProvider->user->isLearner() || $toolProvider->user->isStaff() || $toolProvider->user->isAdmin()) {
// Initialise the user/Lti session
$permissions = array();
if ($toolProvider->user->isLearner()) {
$permissions[] = 'student';
}
if ($toolProvider->user->isStaff()) {
$permissions[] = 'staff';
}
if ($toolProvider->user->isAdmin()) {
$permissions[] = 'admin';
}
$ldapUser = null;
if (isset($_POST['lis_person_contact_email_primary'])) {
// Enable if using LDAP for extra data
// $ldapUser = $this->getLdapUser($_POST['lis_person_contact_email_primary']);
}
$data = array('consumerKey' => $toolProvider->consumer->getKey(), 'resourceId' => $toolProvider->resource_link->getId(), 'userConsumerKey' => $toolProvider->user->getResourceLink()->getConsumer()->getKey(), 'userId' => $toolProvider->user->getId(), 'permissions' => $permissions, 'ldapUser' => $ldapUser, 'launchRequest' => array_merge($_POST, $_GET));
\Ext\LtiSession::getInstance($data);
\Tk\Url::create('/lti/index.html')->redirect();
}
$toolProvider->reason = 'Invalid role.';
return false;
}
/**
* Get the current lti session data if it exists.
* Returns null if not lti session exists
*
* @param null $data
* @return \Ext\LtiSession
*/
public function getLtiSession($data = null)
{
if (!$this->exists('res.lti.session')) {
$this->set('res.lti.session', \Ext\LtiSession::getInstance($data));
}
return $this->get('res.lti.session');
}
