/**
* Create EQUELLA single sign on token for current user
*
* @return string
*/
function equella_getssotoken($course = null)
{
global $USER, $CFG, $COURSE;
if (empty($course)) {
$course = $COURSE;
}
$context_sys = context_system::instance();
$context_cc = null;
if (!empty($course->category) && is_int($course->category)) {
$context_cc = context_coursecat::instance($course->category);
}
$context_c = context_course::instance($course->id);
// roles are ordered by shortname
$editingroles = get_all_editing_roles();
foreach ($editingroles as $role) {
$hassystemrole = false;
if (!empty($context_sys)) {
$hassystemrole = user_has_role_assignment($USER->id, $role->id, $context_sys->id);
}
$hascategoryrole = false;
if (!empty($context_cc)) {
$hascategoryrole = user_has_role_assignment($USER->id, $role->id, $context_cc->id);
}
$hascourserole = false;
if (!empty($context_c)) {
$hascourserole = user_has_role_assignment($USER->id, $role->id, $context_c->id);
}
if ($hassystemrole || $hascategoryrole || $hascourserole) {
// see if the user has a role that is linked to an equella role
$shareid = $CFG->{"equella_{$role->shortname}_shareid"};
if (!empty($shareid)) {
return equella_getssotoken_raw($USER->username, $shareid, $CFG->{"equella_{$role->shortname}_sharedsecret"});
}
}
}
// no roles found, use the default shareid and secret
$shareid = $CFG->equella_shareid;
if (!empty($shareid)) {
return equella_getssotoken_raw($USER->username, $shareid, $CFG->equella_sharedsecret);
}
}
function equella_is_instructor($user, $cm, $courseid)
{
global $CFG, $DB;
$course = $DB->get_record('course', array('id' => $courseid), '*', MUST_EXIST);
$context_sys = context_system::instance();
$context_cc = null;
if (!empty($course->category)) {
$context_cc = context_coursecat::instance($course->category);
}
$context_c = context_course::instance($courseid);
// roles are ordered by shortname
$editingroles = get_all_editing_roles();
$isinstructor = false;
foreach ($editingroles as $role) {
$hassystemrole = user_has_role_assignment($user->id, $role->id, $context_sys->id);
$hascategoryrole = false;
if (!empty($context_cc)) {
$hascategoryrole = user_has_role_assignment($user->id, $role->id, $context_cc->id);
}
$hascourserole = user_has_role_assignment($user->id, $role->id, $context_c->id);
if ($hassystemrole || $hascategoryrole || $hascourserole) {
return true;
}
}
return false;
}
$settings->add(new admin_setting_heading('equella_lti_settings', ecs('lti.heading'), ecs('lti.help')));
$settings->add(new admin_setting_configcheckbox('equella_enable_lti', ecs('enablelti'), ecs('enablelti.desc'), 0));
$settings->add(new admin_setting_configtext('equella_lti_oauth_key', ecs('lti.key.title'), ecs('lti.key.help'), ''));
$settings->add(new admin_setting_configtext('equella_lti_oauth_secret', ecs('lti.secret.title'), ecs('lti.secret.help'), ''));
// ///////////////////////////////////////////////////////////////////////////////
//
// SHARED SECRETS
//
$settings->add(new admin_setting_heading('equella_sharedsecrets_settings', ecs('sharedsecrets.heading'), ecs('sharedsecrets.help')));
$defaultvalue = '';
$description = '';
$settings->add(new equella_setting_left_heading('equella_default_group', ecs('group', ecs('group.default')), ''));
$settings->add(new admin_setting_configtext('equella_shareid', ecs('sharedid.title'), $description, $defaultvalue));
$settings->add(new admin_setting_configtext('equella_sharedsecret', ecs('sharedsecret.title'), $description, $defaultvalue));
$rolearchetypes = get_role_archetypes();
foreach (get_all_editing_roles() as $role) {
$shortname = clean_param($role->shortname, PARAM_ALPHANUM);
if (in_array($shortname, $rolearchetypes)) {
$heading = ecs('group.' . $shortname);
} else {
$heading = ecs('group.noname', $shortname);
if (!empty($role->name)) {
$heading = ecs('group', $role->name);
}
}
$sectionname = 'equella_' . $shortname . '_role_group';
$settings->add(new equella_setting_left_heading($sectionname, $heading, ''));
$settings->add(new admin_setting_configtext("equella_{$shortname}_shareid", ecs('sharedid.title'), $description, $defaultvalue, PARAM_TEXT));
$settings->add(new admin_setting_configtext("equella_{$shortname}_sharedsecret", ecs('sharedsecret.title'), $description, $defaultvalue, PARAM_TEXT));
}
// ///////////////////////////////////////////////////////////////////////////////
