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90 lines
2.7 KiB
Python
90 lines
2.7 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. 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,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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from typing import Any, Dict
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from superset.themes.types import ThemeMode
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def _is_valid_theme_mode(mode: str) -> bool:
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"""Validate if a string represents a valid theme mode.
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Args:
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mode: String to validate against ThemeMode enum
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Returns:
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bool: True if mode is a valid ThemeMode value, False otherwise
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"""
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try:
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ThemeMode(mode)
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return True
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except ValueError:
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return False
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def _is_valid_algorithm(algorithm: Any) -> bool:
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"""Helper function to validate theme algorithm"""
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if isinstance(algorithm, str):
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return _is_valid_theme_mode(algorithm) or algorithm == ThemeMode.SYSTEM
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elif isinstance(algorithm, list):
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return all(
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isinstance(alg, str) and _is_valid_theme_mode(alg) for alg in algorithm
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)
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else:
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return False
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def is_valid_theme(theme: Dict[str, Any]) -> bool:
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"""Validate theme dictionary structure and types.
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A valid theme can be empty or must contain properly typed fields:
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token (dict)
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components (dict)
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hashed (bool)
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inherit (bool)
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algorithm (str or list of str matching ThemeMode)
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Returns:
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bool: True if theme structure is valid, False otherwise
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"""
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try:
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if not isinstance(theme, dict):
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return False
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# Empty dict is valid
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if not theme:
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return True
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# Validate each field type
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validations = [
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("token", dict),
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("components", dict),
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("hashed", bool),
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("inherit", bool),
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]
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for field, expected_type in validations:
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if field in theme and not isinstance(theme[field], expected_type):
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return False
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# Validate algorithm field separately due to its complexity
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if "algorithm" in theme and not _is_valid_algorithm(theme["algorithm"]):
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return False
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return True
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except Exception:
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return False
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