import base64, os import scrypt class Module(object): def __init__(self, bot): self.bot = bot bot.events.on("new").on("user").hook(self.new_user) bot.events.on("preprocess").on("command").hook( self.preprocess_command) bot.events.on("received").on("part").hook(self.on_part) bot.events.on("received").on("command").on("identify" ).hook(self.identify, private_only=True, min_args=1, usage="", help="Identify yourself") bot.events.on("received").on("command").on("register" ).hook(self.register, private_only=True, min_args=1, usage="", help="Register your nickname") bot.events.on("received").on("command").on("logout" ).hook(self.logout, private_only=True, help="Sign out from the bot") def new_user(self, event): self._logout(event["user"]) def on_part(self, event): if len(event["user"].channels) == 1 and event["user"].identified: event["user"].send_notice("You no longer share any channels " "with me so you have been signed out") def _get_hash(self, user): hash, salt = user.get_setting("authentication", (None, None)) return hash, salt def _make_salt(self): return base64.b64encode(os.urandom(64)).decode("utf8") def _make_hash(self, password, salt=None): salt = salt or self._make_salt() hash = base64.b64encode(scrypt.hash(password, salt)).decode("utf8") return hash, salt def _identified(self, user): user.identified = True user.permissions = user.get_setting("permissions", []) def _logout(self, user): user.identified = False user.permissions = [] def identify(self, event): if not event["user"].channels: event["stderr"].write("You must share at least one channel " "with me before you can identify") return if not event["user"].identified: password = event["args_split"][0] hash, salt = self._get_hash(event["user"]) if hash and salt: attempt, _ = self._make_hash(password, salt) if attempt == hash: self._identified(event["user"]) event["stdout"].write("Correct password, you have " "been identified.") else: event["stderr"].write("Incorrect password") else: event["stderr"].write("This nickname is not registered") else: event["stderr"].write("You are already identified") def register(self, event): hash, salt = self._get_hash(event["user"]) if not hash and not salt: password = event["args_split"][0] hash, salt = self._make_hash(password) event["user"].set_setting("authentication", [hash, salt]) self._identified(event["user"]) event["stdout"].write("Nickname registered successfully") else: event["stderr"].write("This nickname is already registered") def logout(self, event): if event["user"].identified: self._logout(event["user"]) event["stdout"].write("You have been logged out") else: event["stderr"].write("You are not logged in") def preprocess_command(self, event): permission = event["hook"].kwargs.get("permission", None) if permission and not permission in event["user" ].permissions and not "*" in event["user"].permissions: return "You do not have permission to do that"