Since the server translates the symbol from the wire into a function call, I think this should be straightforward. -- Matthias
On Jun 27, 2011, at 8:48 AM, Jukka Tuominen wrote: > > Hi, > > if I was to provide public NET-REPL servers (available at PLaneT), I wonder > if there's an easy and secure way to limit the provided functions per > server? > > Say, I have defined functions f1, f2, and f3, and would only like to provide > them over a TCP connection, but nothing else. Not even the basic primitives > (e.g. car, define, require, lambda...) or the net-repl service itself (to > prevent someone else starting a new service). Another server could provide a > different set of functions. > > The idea is to provide various Racket-powered Internet servers that could be > utilized remotely. E.g. by calling (eval-in-server [server] [port] [proc]), > you could operate on servers like... > - read-only access to public Liitin objects that you can fetch and evaluate > locally > - unified Liitin unit to be used for multiprocessing or choose where > processing makes most sense > - external SW/HW control, e.g. an embedded device control (pour-coffee, > water-temperature, water-left...) > > The basic client/server functionality is already working, but it's too big a > security risk outside LAN use. It seems to be easier to add functionality > than ripping them off. Perhaps creating a custom #%top definition to > interfere with the default symbol lookup...? > > Any help appreciated! > > br, jukka > > > | J U K K A T U O M I N E N > | m a n a g i n g d i r e c t o r M. A. > | > | Finndesign Kauppiaankatu 13, FI-00160 Helsinki, Finland > | mobile +358 50 5666290 > | jukka.tuomi...@finndesign.fi www.finndesign.fi > > > _________________________________________________ > For list-related administrative tasks: > http://lists.racket-lang.org/listinfo/users _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
