private function authHeader(Request $request) {
		if ($request->headers->has('authorization')) {
			$auth = $request->headers->get('authorization');
			if (!empty($auth)) {
				list(, $token) = explode(' ', $auth);
				if (empty($token)) {
					return null;
				}
				return $this->authToken($token);
			}
		}
		return null;
	}