import base64 from src import ModuleManager, Utils def _validate(self, s): mechanism = s if " " in s: mechanism, arguments = s.split(" ", 1) return {"mechanism": mechanism, "args": arguments} @Utils.export("serverset", {"setting": "sasl", "help": "Set the sasl username/password for this server", "validate": _validate}) class Module(ModuleManager.BaseModule): @Utils.hook("received.cap.ls") def on_cap(self, event): has_sasl = "sasl" in event["capabilities"] our_sasl = event["server"].get_setting("sasl", None) do_sasl = False if has_sasl and our_sasl: if not event["capabilities"]["sasl"] == None: our_mechanism = our_sasl["mechanism"].upper() do_sasl = our_mechanism in event["capabilities" ]["sasl"].split(",") else: do_sasl = True if do_sasl: event["server"].queue_capability("sasl") @Utils.hook("received.cap.ack") def on_cap_ack(self, event): if "sasl" in event["capabilities"]: sasl = event["server"].get_setting("sasl") event["server"].send_authenticate(sasl["mechanism"].upper()) event["server"].wait_for_capability("sasl") @Utils.hook("received.authenticate") def on_authenticate(self, event): if event["message"] != "+": event["server"].send_authenticate("*") else: sasl = event["server"].get_setting("sasl") mechanism = sasl["mechanism"].upper() if mechanism == "PLAIN": sasl_nick, sasl_pass = sasl["args"].split(":", 1) auth_text = "%s\0%s\0%s" % (sasl_nick, sasl_nick, sasl_pass) elif mechanism == "EXTERNAL": auth_text = "+" else: raise ValueError("unknown sasl mechanism '%s'" % mechanism) if not auth_text == "+": auth_text = base64.b64encode(auth_text.encode("utf8")) auth_text = auth_text.decode("utf8") event["server"].send_authenticate(auth_text) def _end_sasl(self, server): server.capability_done("sasl") @Utils.hook("received.numeric.903") def sasl_success(self, event): self._end_sasl(event["server"]) @Utils.hook("received.numeric.904") def sasl_failure(self, event): self._end_sasl(event["server"])