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4b965c862d
Part of #9744 Removes all redundant `# -*- coding: utf-8 -*-` lines from files, as python 3 automatically reads source code as utf-8 now. `Signed-off-by: Jonathan de Jong <jonathan@automatia.nl>`
63 lines
2.1 KiB
Python
63 lines
2.1 KiB
Python
# Copyright 2020 The Matrix.org Foundation C.I.C.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from typing import Any, Iterable
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import jsonschema
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from synapse.config._base import ConfigError
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from synapse.types import JsonDict
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def validate_config(
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json_schema: JsonDict, config: Any, config_path: Iterable[str]
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) -> None:
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"""Validates a config setting against a JsonSchema definition
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This can be used to validate a section of the config file against a schema
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definition. If the validation fails, a ConfigError is raised with a textual
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description of the problem.
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Args:
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json_schema: the schema to validate against
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config: the configuration value to be validated
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config_path: the path within the config file. This will be used as a basis
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for the error message.
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"""
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try:
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jsonschema.validate(config, json_schema)
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except jsonschema.ValidationError as e:
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raise json_error_to_config_error(e, config_path)
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def json_error_to_config_error(
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e: jsonschema.ValidationError, config_path: Iterable[str]
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) -> ConfigError:
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"""Converts a json validation error to a user-readable ConfigError
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Args:
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e: the exception to be converted
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config_path: the path within the config file. This will be used as a basis
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for the error message.
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Returns:
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a ConfigError
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"""
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# copy `config_path` before modifying it.
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path = list(config_path)
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for p in list(e.absolute_path):
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if isinstance(p, int):
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path.append("<item %i>" % p)
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else:
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path.append(str(p))
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return ConfigError(e.message, path)
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