RTMP clientaccess tracking

When a client is starting a rtmp play with streamalias enabled all data reported only shows the localstreamname but never the streamalias. As long an streamalias is created, but not use the "name mapping" is available via liststreamaslias. But when play is started there is no function to see "which session/user" used the streamalias. This makes it impossible to shutdown special session of relation between generated streamalias and used streamalias. How can i get a report/data of "aliasname" on existing stream/play. ?? regards,Uwe