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59 lines
2.0 KiB
Python
59 lines
2.0 KiB
Python
from pathlib import Path
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from app.component.babel import babel_configs, babel
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import re, os
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from fastapi_babel.middleware import Babel, LANGUAGES_PATTERN
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from pydantic_i18n import JsonLoader, PydanticI18n
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def get_language(lang_code: str | None = None):
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"""Ported from 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 = [
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(f"{m.group(1)}{f'_{m.group(2)}' if m.group(2) else ''}", m.group(3) or "")
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for m in matches
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]
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languages = sorted(
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languages, key=lambda x: x[1], reverse=True
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) # 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 (
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not quality
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): # languages without quality value having the highest priority 1
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return lang
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elif (
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not explicit_priority
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): # 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 (
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explicit_priority if explicit_priority else babel_configs.BABEL_DEFAULT_LOCALE
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)
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loader = JsonLoader(os.path.dirname(__file__) + "/translations")
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trans = PydanticI18n(loader)
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