protected function loginByCookie()
{
$value = isset($_COOKIE['_identity']) ? $_COOKIE['_identity'] : null;
if ($value === null) {
return;
}
$data = json_decode($value, true);
if (count($data) !== 3 || !isset($data[0], $data[1], $data[2])) {
return;
}
list($id, $authKey, $duration) = $data;
$identity = User::findIdentity($id);
if ($identity === null) {
return;
} elseif (!$identity instanceof IdentityInterface) {
throw new \ErrorException("User::findIdentity() must return an object implementing IdentityInterface.");
}
if ($identity->validateAuthKey($authKey)) {
$this->switchIdentity($identity, $duration);
Application::info("User '{$id}' logged in via cookie.", __METHOD__);
} else {
Application::warning("Invalid auth key attempted for user '{$id}': {$authKey}", __METHOD__);
}
}
