function run()
{
$openid = getOpenIDURL();
$consumer = getConsumer();
$return_to = getReturnTo();
// Begin the OpenID authentication process.
$auth_request = $consumer->begin($openid);
// No auth request means we can't begin OpenID.
if (!$auth_request) {
displayError("Authentication error; not a valid OpenID.");
}
// add AX request
if ($_GET['ax'] == 'true') {
$ax_request = new Auth_OpenID_AX_FetchRequest();
global $ax_data;
foreach ($ax_data as $ax_key => $ax_data_ns) {
// set AX params
if ($_GET['ax_' . $ax_key] == 'true') {
$ax_request->add(new Auth_OpenID_AX_AttrInfo($ax_data_ns, 1, true, $ax_key));
}
}
// add extension
if ($ax_request) {
$auth_request->addExtension($ax_request);
}
}
// add UI extension request
if ($_GET['ui'] == 'true') {
$UI_request = new OpenID_UI_Request();
// set icon
if ($_GET['icon'] == 'true') {
$UI_request->setIcon();
}
// set lang
if ($_GET['lang'] == 'true' && $_GET['pref_lang']) {
$UI_request->setLang($_GET['pref_lang']);
}
// set popup
if ($_GET['popup'] == 'true') {
$UI_request->setPopup();
$return_to .= "popup=true";
}
$auth_request->addExtension($UI_request);
} else {
if ($_GET['callback'] == "ax") {
$return_to .= "callback=ax";
}
}
$redirect_url = $auth_request->redirectURL(getTrustRoot(), $return_to);
if (Auth_OpenID::isFailure($redirect_url)) {
displayError("Could not redirect to server: " . $redirect_url->message);
} else {
// Send redirect.
header("Location: " . $redirect_url);
}
}
/**
* Create a popup enabling UI object.
*
* @access protected
* @param &string the return to address
* @return OpenID_UI_Request
*/
protected function &_get_ui(&$return_to)
{
$this->ci->session->set_userdata('_openid_popup', true);
$r = new OpenID_UI_Request();
$r->setIcon();
$r->setPopup();
return $r;
}