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Co-authored-by: Douglas <douglas.ym.lai@gmail.com> Co-authored-by: a7m-1st <ahmed.jimi.awelkair500@gmail.com> Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> Co-authored-by: Tong Chen <web_chentong@163.com>
64 lines
2.6 KiB
Python
64 lines
2.6 KiB
Python
# ========= Copyright 2025-2026 @ Eigent.ai All Rights Reserved. =========
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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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# ========= Copyright 2025-2026 @ Eigent.ai All Rights Reserved. =========
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import os
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import re
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from pathlib import Path
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from fastapi_babel.middleware import LANGUAGES_PATTERN
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from pydantic_i18n import JsonLoader, PydanticI18n
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from app.component.babel import babel, babel_configs
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def get_language(lang_code: str | None = None):
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"""移植于fastapi_babel.middleware.BabelMiddleware.get_language
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Applies an available language.
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To apply an available language it will be searched in the language folder for an available one
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and will also priotize the one with the highest quality value. The Fallback language will be the
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taken from the BABEL_DEFAULT_LOCALE var.
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Args:
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babel (Babel): Request scoped Babel instance
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lang_code (str): The Value of the Accept-Language Header.
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Returns:
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str: The language that should be used.
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"""
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if not lang_code:
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return babel.config.BABEL_DEFAULT_LOCALE
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matches = re.finditer(LANGUAGES_PATTERN, lang_code)
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languages = [(f"{m.group(1)}{f'_{m.group(2)}' if m.group(2) else ''}", m.group(3) or "") for m in matches]
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languages = sorted(languages, key=lambda x: x[1], reverse=True) # sort the priority, no priority comes last
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translation_directory = Path(babel.config.BABEL_TRANSLATION_DIRECTORY)
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translation_files = [i.name for i in translation_directory.iterdir()]
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explicit_priority = None
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for lang, quality in languages:
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if lang in translation_files:
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if not quality: # languages without quality value having the highest priority 1
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return lang
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elif not explicit_priority: # set language with explicit priority <= priority 1
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explicit_priority = lang
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# Return language with explicit priority or default value
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return explicit_priority if explicit_priority else babel_configs.BABEL_DEFAULT_LOCALE
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loader = JsonLoader(os.path.dirname(__file__) + "/translations")
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trans = PydanticI18n(loader)
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