from babel import negotiate_locale from flask_babel import Babel, Locale from babel.core import UnknownLocaleError from flask import request, g from . import logger log = logger.create() babel = Babel() def get_locale(): # if a user is logged in, use the locale from the user settings user = getattr(g, 'user', None) if user is not None and hasattr(user, "locale"): if user.name != 'Guest': # if the account is the guest account bypass the config lang settings return user.locale preferred = list() if request.accept_languages: for x in request.accept_languages.values(): try: preferred.append(str(Locale.parse(x.replace('-', '_')))) except (UnknownLocaleError, ValueError) as e: log.debug('Could not parse locale "%s": %s', x, e) return negotiate_locale(preferred or ['en'], get_available_translations()) def get_user_locale_language(user_language): return Locale.parse(user_language).get_language_name(get_locale()) def get_available_locale(): return [Locale('en')] + babel.list_translations() def get_available_translations(): return set(str(item) for item in get_available_locale())