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Ahoj,

dostali jsme ve skole ukol napsat interface pro komunikaci client -server. Tento interface je volan z jine ho souboru. ma z ukol (aspon jak jsem to pochopil) nacist vstup od uzivatele jako klient, ten poslat serveru, ktery vraci zpravu.

Dostali jsme na to nasledujici sablonu:

#!/usr/bin/python

#http://www.networksorcery.com/enp/protocol/irc.htm
import re
import socket
import getpass

class IRCBotInterface(object):
    """Generic interface for working with IRC messages."""

    def read(self):
        raise NotImplemented

    def write(self, msg):
        raise NotImplemented

    def open(self):
        raise NotImplemented

    def close(self):
        raise NotImplemented


class IRCBotShellInterface(IRCBotInterface):

    def __init__(self):
        pass

    def read(self):
        return raw_input("> ")

    def write(self, msg):
        print msg

    def open(self):
        pass

    def close(self):
        pass


class IRCBotTelnetInterface(IRCBotInterface):
    def __init__(self, address = None, port = 8080):
        self._timeout = 60 * 10
        self._listen = None
        self._sfile = None
        self._socket = None

        self._addr = address
        self._port = port

    def client(self):
        return self._sfile

    def disconnected(self):
        self._socket = None
        self._sfile = None

    def read(self):
        pass

    def write(self, msg):
        pass

    def open(self):
        pass

        if self._listen == None:
            raise Exception("No valid address found")

    def close(self):
        pass
 
if __name__ == "__main__":
    x = IRCBotTelnetInterface("::1", 8082)
    x.open()

    while True:
        data = x.read()
        if data == "":
            break

        print "Received:", data
        x.write(data)

Se samotnym sitovym programovanim az takovy problem nemam, ale moc nechapu jak naimplementovat to rozhrani pro komunikaci (shell).

Nevim, k cemu jsou zapotrebi dve tridy IRCBotInterface(object) a IRCBotShellInterface(IRCBotInterface). Je mi jasny, ze IRCBotShellInterface(IRCBotInterface) dedi predchozi tridu IRCBotInterface, jennevim proc.Premyslim, v cem se maji jejich metody lisit. Nejsem zbehly v OOP, vlastne zacinam, takze mi asi neco podstatnyho nedochazi. Ma snad prvni trida byt I/O rozhrani a druha trida rozhrani pro komunikaci se servrem? Ale co potom fce open a close?

As jsem spravne pochopil, ze perace otevreni socketu ma delat fce open. V cem se maji v jednotlivych tridach ale lisit?

Mohl bych pozadat o nejake nakopnuti? Vubec nevim, od ceho se mam odpichnout.

Moc instrukci jsme k ukolu nedostali a me moc nedochazi, jakym zpusobem to rozhrani ma fungovat.