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<?php
require_once "lib/render.php";
require_once "lib/session.php";
require_once "lib/render/login.php";
require_once "lib/render/about.php";
require_once "lib/render/trust.php";
require_once "Auth/OpenID/Server.php";
require_once "Auth/OpenID/HMACSHA1.php";
function authCancel($info)
{
if ($info) {
setRequestInfo();
$url = $info->getCancelURL();
} else {
$server = getServer();
$url = $server->server_url;
}
return redirect_render($url);
}
function handleResponse($response, $do_auth=true)
{
list ($status, $info) = $response;
switch($status) {
case Auth_OpenID_REMOTE_ERROR:
return kv_render($info, false);
case Auth_OpenID_REMOTE_OK:
return kv_render($info);
case Auth_OpenID_REDIRECT:
return redirect_render($info);
case Auth_OpenID_DO_AUTH:
if ($do_auth) {
return doAuth($info);
} else {
return about_render('Got unexpected DO_AUTH');
}
case Auth_OpenID_DO_ABOUT:
return about_render();
case Auth_OpenID_LOCAL_ERROR:
return about_render($info, false);
default:
$repr = var_export($status, true);
return about_render("Internal error: unknown status $repr");
}
}
function doAuth($info, $trusted=null, $fail_cancels=false)
{
if (!$info) {
// There is no authentication information, so bail
return authCancel(null);
}
$req_url = $info->getIdentityURL();
$user = getLoggedInUser();
setRequestInfo($info);
if ($req_url != $user) {
return login_render(array(), $req_url, $req_url);
}
$sites = getSessionSites();
$trust_root = $info->getTrustRoot();
$fail_cancels = $fail_cancels || isset($sites[$trust_root]);
$trusted = isset($trusted) ? $trusted : isTrusted($req_url, $trust_root);
if ($trusted) {
setRequestInfo();
$server = getServer();
$response = $server->getAuthResponse(&$info, true);
return handleResponse($response, false);
} elseif ($fail_cancels) {
return authCancel($info);
} else {
return trust_render($info);
}
}
?>
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