rps.py 文件源码

def get_time_permit(self, hash_mpin_id_hex, date_epoch, signature):
        """Get time permit from cache or request new."""
        if options.cacheTimePermits:
            time_permit_item = self.storage.find(time_permit_id=hash_mpin_id_hex, time_permit_date=date_epoch)
            if time_permit_item:
                # Get time permit from cache
                raise tornado.gen.Return(time_permit_item.time_permit)

        # No cached time permits for this mpin id, request new from D-TA
        time_permits = yield self.get_time_permits(hash_mpin_id_hex, signature)
        if options.cacheTimePermits:
            self.cache_time_permits(time_permits, hash_mpin_id_hex)

        # Return the one for today
        if str(date_epoch) not in time_permits:
            log.error("DTA /timePermit Failed. No time permit for today")
            raise HTTPError(500)
        raise tornado.gen.Return(time_permits[str(date_epoch)])