synapse-product/synapse/config/spam_checker.py

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2017-09-27 05:22:54 -04:00
# Copyright 2017 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.
import logging
from typing import Any, Dict, List, Tuple
from synapse.config import ConfigError
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from synapse.util.module_loader import load_module
from ._base import Config
logger = logging.getLogger(__name__)
LEGACY_SPAM_CHECKER_WARNING = """
This server is using a spam checker module that is implementing the deprecated spam
checker interface. Please check with the module's maintainer to see if a new version
supporting Synapse's generic modules system is available. For more information, please
see https://matrix-org.github.io/synapse/latest/modules/index.html
---------------------------------------------------------------------------------------"""
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class SpamCheckerConfig(Config):
section = "spamchecker"
def read_config(self, config, **kwargs):
self.spam_checkers: List[Tuple[Any, Dict]] = []
spam_checkers = config.get("spam_checker") or []
if isinstance(spam_checkers, dict):
# The spam_checker config option used to only support one
# spam checker, and thus was simply a dictionary with module
# and config keys. Support this old behaviour by checking
# to see if the option resolves to a dictionary
self.spam_checkers.append(load_module(spam_checkers, ("spam_checker",)))
elif isinstance(spam_checkers, list):
for i, spam_checker in enumerate(spam_checkers):
config_path = ("spam_checker", "<item %i>" % i)
if not isinstance(spam_checker, dict):
raise ConfigError("expected a mapping", config_path)
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self.spam_checkers.append(load_module(spam_checker, config_path))
else:
raise ConfigError("spam_checker syntax is incorrect")
# If this configuration is being used in any way, warn the admin that it is going
# away soon.
if self.spam_checkers:
logger.warning(LEGACY_SPAM_CHECKER_WARNING)