mirror of
https://git.anonymousland.org/anonymousland/synapse.git
synced 2024-12-30 14:46:11 -05:00
103 lines
3.1 KiB
Python
103 lines
3.1 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2018 New Vector Ltd
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
from synapse.util import glob_to_regex
|
|
|
|
from ._base import Config, ConfigError
|
|
|
|
|
|
class RoomDirectoryConfig(Config):
|
|
def read_config(self, config):
|
|
alias_creation_rules = config["alias_creation_rules"]
|
|
|
|
self._alias_creation_rules = [
|
|
_AliasRule(rule)
|
|
for rule in alias_creation_rules
|
|
]
|
|
|
|
def default_config(self, config_dir_path, server_name, **kwargs):
|
|
return """
|
|
# The `alias_creation` option controls who's allowed to create aliases
|
|
# on this server.
|
|
#
|
|
# The format of this option is a list of rules that contain globs that
|
|
# match against user_id and the new alias (fully qualified with server
|
|
# name). The action in the first rule that matches is taken, which can
|
|
# currently either be "allow" or "deny".
|
|
#
|
|
# If no rules match the request is denied.
|
|
alias_creation_rules:
|
|
- user_id: "*"
|
|
alias: "*"
|
|
action: allow
|
|
"""
|
|
|
|
def is_alias_creation_allowed(self, user_id, alias):
|
|
"""Checks if the given user is allowed to create the given alias
|
|
|
|
Args:
|
|
user_id (str)
|
|
alias (str)
|
|
|
|
Returns:
|
|
boolean: True if user is allowed to crate the alias
|
|
"""
|
|
for rule in self._alias_creation_rules:
|
|
if rule.matches(user_id, alias):
|
|
return rule.action == "allow"
|
|
|
|
return False
|
|
|
|
|
|
class _AliasRule(object):
|
|
def __init__(self, rule):
|
|
action = rule["action"]
|
|
user_id = rule["user_id"]
|
|
alias = rule["alias"]
|
|
|
|
if action in ("allow", "deny"):
|
|
self.action = action
|
|
else:
|
|
raise ConfigError(
|
|
"alias_creation_rules rules can only have action of 'allow'"
|
|
" or 'deny'"
|
|
)
|
|
|
|
try:
|
|
self._user_id_regex = glob_to_regex(user_id)
|
|
self._alias_regex = glob_to_regex(alias)
|
|
except Exception as e:
|
|
raise ConfigError("Failed to parse glob into regex: %s", e)
|
|
|
|
def matches(self, user_id, alias):
|
|
"""Tests if this rule matches the given user_id and alias.
|
|
|
|
Args:
|
|
user_id (str)
|
|
alias (str)
|
|
|
|
Returns:
|
|
boolean
|
|
"""
|
|
|
|
# Note: The regexes are anchored at both ends
|
|
if not self._user_id_regex.match(user_id):
|
|
return False
|
|
|
|
if not self._alias_regex.match(alias):
|
|
return False
|
|
|
|
return True
|