56 lines
2.1 KiB
Python
56 lines
2.1 KiB
Python
from django.conf import settings
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from urllib.parse import urlparse, urlunparse
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import logging
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from django.shortcuts import redirect
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from django.utils import timezone, translation
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logger = logging.getLogger(__name__)
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logging.basicConfig(level=logging.INFO)
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def switch_language(request):
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"""
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Switches the current language context for the user based on a request parameter, modifies the URL path
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accordingly, and updates session and cookies with the new language preference.
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:param request: The HTTP request object containing information about the user request, including
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the desired language to switch to and the referring URL.
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- "GET" dictionary is accessed to retrieve the desired language parameter.
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- "META" dictionary is used to extract the referring URL via "HTTP_REFERER".
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:return: A redirect response object pointing to the modified URL with the updated language
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preference, if the requested language is valid. Otherwise, redirects to the default URL.
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"""
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language = request.GET.get("language", "en")
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referer = request.META.get("HTTP_REFERER", "/")
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parsed_url = urlparse(referer)
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path_parts = parsed_url.path.split("/")
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if path_parts[1] in dict(settings.LANGUAGES):
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path_parts.pop(1)
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new_path = "/".join(path_parts)
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new_url = urlunparse(
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(
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parsed_url.scheme,
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parsed_url.netloc,
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new_path,
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parsed_url.params,
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parsed_url.query,
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parsed_url.fragment,
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)
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)
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if language in dict(settings.LANGUAGES):
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logger.debug(f"Switching language to: {language}")
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response = redirect(new_url)
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response.set_cookie(settings.LANGUAGE_COOKIE_NAME, language)
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translation.activate(language)
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request.session[settings.LANGUAGE_COOKIE_NAME] = language
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logger.debug(
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f"Language switched to: {language}, Session: {request.session[settings.LANGUAGE_COOKIE_NAME]}"
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)
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return response
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else:
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logger.warning(f"Invalid language code: {language}")
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return redirect("/") |