Il 2005-12-12, Laszlo Zsolt Nagy <[EMAIL PROTECTED]> ha scritto: > > Hello, > > I would like to develop a new network protocol, where the server and the > clients are Python programs.
You should use Twisted for this: Writing clients http://twistedmatrix.com/projects/core/documentation/howto/clients.html Writing servers http://twistedmatrix.com/projects/core/documentation/howto/servers.html > I think to be effective, I need to use TCP_NODELAY, and manually > buffered transfers. > I would like to create a general messaging object that has methods like > > sendinteger > recvinteger > sendstring > recvstring You can inherit from twisted.internet.protocol.Protocol or one of its subclasses, they handle buffering and all sort of these things for you. Cannot have to reinvent the wheel. > To be more secure, I think I can use this loads function to transfer > more elaborate python stuctures: > > def loads(s): > """Loads an object from a string. > > @param s: The string to load the object from. > @return: The object loaded from the string. This function will not > unpickle globals and instances. > """ > f = cStringIO.StringIO(s) > p = cPickle.Unpickler(f) > p.find_global = None > return p.load() Using untrusted pickle loading is *NOT* more secure: http://www.python.org/doc/2.2.3/lib/pickle-sec.html and http://www.livejournal.com/users/jcalderone/15864.html -- Lawrence - http://www.oluyede.org/blog "Anyone can freely use whatever he wants but the light at the end of the tunnel for most of his problems is Python" -- http://mail.python.org/mailman/listinfo/python-list
