mirror of
https://mau.dev/maunium/synapse.git
synced 2024-08-24 11:16:04 +00:00
![Eric Eastwood](/assets/img/avatar_default.png)
- Update black version to the latest
- Run black auto formatting over the codebase
- Run autoformatting according to [`docs/code_style.md
`](80d6dc9783/docs/code_style.md
)
- Update `code_style.md` docs around installing black to use the correct version
112 lines
3.7 KiB
Python
112 lines
3.7 KiB
Python
# -*- coding: utf-8 -*-
|
|
# 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 importlib
|
|
import importlib.util
|
|
import itertools
|
|
from typing import Any, Iterable, Tuple, Type
|
|
|
|
import jsonschema
|
|
|
|
from synapse.config._base import ConfigError
|
|
from synapse.config._util import json_error_to_config_error
|
|
|
|
|
|
def load_module(provider: dict, config_path: Iterable[str]) -> Tuple[Type, Any]:
|
|
"""Loads a synapse module with its config
|
|
|
|
Args:
|
|
provider: a dict with keys 'module' (the module name) and 'config'
|
|
(the config dict).
|
|
config_path: the path within the config file. This will be used as a basis
|
|
for any error message.
|
|
|
|
Returns
|
|
Tuple of (provider class, parsed config object)
|
|
"""
|
|
|
|
modulename = provider.get("module")
|
|
if not isinstance(modulename, str):
|
|
raise ConfigError(
|
|
"expected a string", path=itertools.chain(config_path, ("module",))
|
|
)
|
|
|
|
# We need to import the module, and then pick the class out of
|
|
# that, so we split based on the last dot.
|
|
module, clz = modulename.rsplit(".", 1)
|
|
module = importlib.import_module(module)
|
|
provider_class = getattr(module, clz)
|
|
|
|
# Load the module config. If None, pass an empty dictionary instead
|
|
module_config = provider.get("config") or {}
|
|
try:
|
|
provider_config = provider_class.parse_config(module_config)
|
|
except jsonschema.ValidationError as e:
|
|
raise json_error_to_config_error(e, itertools.chain(config_path, ("config",)))
|
|
except ConfigError as e:
|
|
raise _wrap_config_error(
|
|
"Failed to parse config for module %r" % (modulename,),
|
|
prefix=itertools.chain(config_path, ("config",)),
|
|
e=e,
|
|
)
|
|
except Exception as e:
|
|
raise ConfigError(
|
|
"Failed to parse config for module %r" % (modulename,),
|
|
path=itertools.chain(config_path, ("config",)),
|
|
) from e
|
|
|
|
return provider_class, provider_config
|
|
|
|
|
|
def load_python_module(location: str):
|
|
"""Load a python module, and return a reference to its global namespace
|
|
|
|
Args:
|
|
location (str): path to the module
|
|
|
|
Returns:
|
|
python module object
|
|
"""
|
|
spec = importlib.util.spec_from_file_location(location, location)
|
|
if spec is None:
|
|
raise Exception("Unable to load module at %s" % (location,))
|
|
mod = importlib.util.module_from_spec(spec)
|
|
spec.loader.exec_module(mod) # type: ignore
|
|
return mod
|
|
|
|
|
|
def _wrap_config_error(
|
|
msg: str, prefix: Iterable[str], e: ConfigError
|
|
) -> "ConfigError":
|
|
"""Wrap a relative ConfigError with a new path
|
|
|
|
This is useful when we have a ConfigError with a relative path due to a problem
|
|
parsing part of the config, and we now need to set it in context.
|
|
"""
|
|
path = prefix
|
|
if e.path:
|
|
path = itertools.chain(prefix, e.path)
|
|
|
|
e1 = ConfigError(msg, path)
|
|
|
|
# ideally we would set the 'cause' of the new exception to the original exception;
|
|
# however now that we have merged the path into our own, the stringification of
|
|
# e will be incorrect, so instead we create a new exception with just the "msg"
|
|
# part.
|
|
|
|
e1.__cause__ = Exception(e.msg)
|
|
e1.__cause__.__cause__ = e.__cause__
|
|
return e1
|