288 lines
11 KiB
Python
288 lines
11 KiB
Python
import base64, os
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import scrypt
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from src import ModuleManager, utils
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REQUIRES_IDENTIFY = ("You need to be identified to use that command "
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"(/msg %s register | /msg %s identify)")
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@utils.export("serverset", {"setting": "identity-mechanism",
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"help": "Set the identity mechanism for this server"})
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class Module(ModuleManager.BaseModule):
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@utils.hook("new.user")
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def new_user(self, event):
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self._logout(event["user"])
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event["user"].admin_master = False
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def _master_password(self):
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master_password = self._random_password()
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hash, salt = self._make_hash(master_password)
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self.bot.set_setting("master-password", [hash, salt])
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return master_password
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def command_line(self, args: str):
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if args == "master-password":
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master_password = self._master_password()
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print("one-time master password: %s" % master_password)
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else:
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raise ValueError("Unknown command-line argument")
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@utils.hook("received.command.masterpassword", private_only=True)
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def master_password(self, event):
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"""
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:permission: master-password
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"""
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master_password = self._master_password()
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event["stdout"].write("One-time master password: %s" %
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master_password)
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@utils.hook("received.part")
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def on_part(self, event):
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if len(event["user"].channels) == 0 and event["user"
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].identified_account_override:
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event["user"].send_notice("You no longer share any channels "
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"with me so you have been signed out")
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def _get_hash(self, server, account):
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hash, salt = server.get_user(account).get_setting("authentication",
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(None, None))
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return hash, salt
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def _random_string(self, n):
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return base64.b64encode(os.urandom(n)).decode("utf8")
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def _make_salt(self):
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return self._random_string(64)
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def _random_password(self):
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return self._random_string(32)
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def _make_hash(self, password, salt=None):
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salt = salt or self._make_salt()
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hash = base64.b64encode(scrypt.hash(password, salt)).decode("utf8")
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return hash, salt
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def _identified(self, server, user, account):
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user.identified_account_override = account
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user.identified_account_id_override = server.get_user(account).get_id()
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def _logout(self, user):
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user.identified_account_override = None
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user.identified_account_id_override = None
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@utils.hook("received.command.masterlogin", private_only=True, min_args=1)
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def master_login(self, event):
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saved_hash, saved_salt = self.bot.get_setting("master-password",
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(None, None))
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if saved_hash and saved_salt:
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given_hash, _ = self._make_hash(event["args"], saved_salt)
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if utils.security.constant_time_compare(given_hash, saved_hash):
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self.bot.del_setting("master-password")
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event["user"].admin_master = True
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event["stdout"].write("Master login successful")
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return
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event["stderr"].write("Master login failed")
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@utils.hook("received.command.identify", private_only=True, min_args=1)
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def identify(self, event):
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"""
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:help: Identify yourself
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:usage: [account] <password>
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"""
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identity_mechanism = event["server"].get_setting("identity-mechanism",
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"internal")
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if not identity_mechanism == "internal":
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raise utils.EventError("The 'identify' command isn't available "
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"on this network")
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if not event["user"].channels:
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raise utils.EventError("You must share at least one channel "
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"with me before you can identify")
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if not event["user"].identified_account_override:
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if len(event["args_split"]) > 1:
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account = event["args_split"][0]
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password = " ".join(event["args_split"][1:])
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else:
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account = event["user"].nickname
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password = event["args"]
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hash, salt = self._get_hash(event["server"], account)
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if hash and salt:
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attempt, _ = self._make_hash(password, salt)
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if utils.security.constant_time_compare(attempt, hash):
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self._identified(event["server"], event["user"], account)
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event["stdout"].write("Correct password, you have "
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"been identified as '%s'." % account)
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self.events.on("internal.identified").call(
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user=event["user"])
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else:
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event["stderr"].write("Incorrect password for '%s'" %
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account)
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else:
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event["stderr"].write("Account '%s' is not registered" %
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account)
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else:
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event["stderr"].write("You are already identified")
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@utils.hook("received.command.register", private_only=True, min_args=1)
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def register(self, event):
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"""
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:help: Register yourself
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:usage: <password>
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"""
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identity_mechanism = event["server"].get_setting("identity-mechanism",
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"internal")
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if not identity_mechanism == "internal":
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raise utils.EventError("The 'identify' command isn't available "
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"on this network")
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hash, salt = self._get_hash(event["server"], event["user"].nickname)
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if not hash and not salt:
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password = event["args"]
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hash, salt = self._make_hash(password)
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event["user"].set_setting("authentication", [hash, salt])
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self._identified(event["server"], event["user"],
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event["user"].nickname)
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event["stdout"].write("Nickname registered successfully")
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else:
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event["stderr"].write("This nickname is already registered")
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@utils.hook("received.command.setpassword", authenticated=True, min_args=1)
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def set_password(self, event):
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"""
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:help: Change your password
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:usage: <password>
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"""
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hash, salt = self._make_hash(event["args"])
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event["user"].set_setting("authentication", [hash, salt])
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event["stdout"].write("Set your password")
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@utils.hook("received.command.logout", private_only=True)
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def logout(self, event):
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"""
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:help: Logout from your identified account
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"""
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if event["user"].identified_account_override:
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self._logout(event["user"])
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event["stdout"].write("You have been logged out")
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else:
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event["stderr"].write("You are not logged in")
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@utils.hook("received.command.resetpassword", private_only=True,
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min_args=2)
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def reset_password(self, event):
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"""
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:help: Reset a given user's password
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:usage: <nickname> <password>
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:permission: resetpassword
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"""
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target = event["server"].get_user(event["args_split"][0])
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password = " ".join(event["args_split"][1:])
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registered = target.get_setting("authentication", None)
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if registered == None:
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event["stderr"].write("'%s' isn't registered" % target.nickname)
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else:
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hash, salt = self._make_hash(password)
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target.set_setting("authentication", [hash, salt])
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event["stdout"].write("Reset password for '%s'" %
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target.nickname)
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@utils.hook("preprocess.command")
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def preprocess_command(self, event):
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if event["user"].admin_master:
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return utils.consts.PERMISSION_FORCE_SUCCESS
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permission = event["hook"].get_kwarg("permission", None)
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authenticated = event["hook"].kwargs.get("authenticated", False)
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identity_mechanism = event["server"].get_setting("identity-mechanism",
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"internal")
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identified_account = None
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if identity_mechanism == "internal":
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identified_account = event["user"].identified_account_override
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elif identity_mechanism == "ircv3-account":
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identified_account = (event["user"].identified_account or
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event["tags"].get("account", None))
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identified_user = None
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permissions = []
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if identified_account:
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identified_user = event["server"].get_user(identified_account)
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permissions = identified_user.get_setting("permissions", [])
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if permission:
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has_permission = permission and (
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permission in permissions or "*" in permissions)
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if not identified_account or not has_permission:
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return "You do not have permission to do that"
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else:
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return utils.consts.PERMISSION_FORCE_SUCCESS
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elif authenticated:
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if not identified_account:
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return REQUIRES_IDENTIFY % (event["server"].nickname,
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event["server"].nickname)
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else:
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return utils.consts.PERMISSION_FORCE_SUCCESS
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@utils.hook("received.command.mypermissions", authenticated=True)
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def my_permissions(self, event):
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"""
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:help: Show your permissions
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"""
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permissions = event["user"].get_setting("permissions", [])
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event["stdout"].write("Your permissions: %s" % ", ".join(permissions))
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def _get_user_details(self, server, nickname):
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target = server.get_user(nickname)
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registered = bool(target.get_setting("authentication", None))
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permissions = target.get_setting("permissions", [])
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return [target, registered, permissions]
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@utils.hook("received.command.givepermission", min_args=2)
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def give_permission(self, event):
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"""
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:help: Give a given permission to a given user
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:usage: <nickname> <permission>
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:permission: givepermission
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"""
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permission = event["args_split"][1].lower()
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target, registered, permissions = self._get_user_details(
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event["server"], event["args_split"][0])
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if target.get_identified_account() == None:
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raise utils.EventError("%s isn't registered" % target.nickname)
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if permission in permissions:
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event["stderr"].write("%s already has permission '%s'" % (
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target.nickname, permission))
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else:
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permissions.append(permission)
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target.set_setting("permissions", permissions)
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event["stdout"].write("Gave permission '%s' to %s" % (
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permission, target.nickname))
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@utils.hook("received.command.removepermission", min_args=2)
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def remove_permission(self, event):
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"""
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:help: Remove a given permission from a given user
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:usage: <nickname> <permission>
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:permission: removepermission
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"""
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permission = event["args_split"][1].lower()
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target, registered, permissions = self._get_user_details(
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event["server"], event["args_split"][0])
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if target.identified_account == None:
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raise utils.EventError("%s isn't registered" % target.nickname)
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if permission not in permissions:
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event["stderr"].write("%s doesn't have permission '%s'" % (
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target.nickname, permission))
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else:
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permissions.remove(permission)
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if not permissions:
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target.del_setting("permissions")
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else:
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target.set_setting("permissions", permissions)
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event["stdout"].write("Removed permission '%s' from %s" % (
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permission, target.nickname))
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