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1cb7b3210a
Use the user_logged_in signal provided by Django to log the user in. This keeps the login code simple and uncluttered. Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org> Reviewed-by: James Valleroy <jvalleroy@mailbox.org>
80 lines
2.6 KiB
Python
80 lines
2.6 KiB
Python
#
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# This file is part of Plinth.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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"""
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Utility methods for managing translations.
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"""
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from django.conf import settings
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from django.contrib.auth.signals import user_logged_in
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from django.dispatch import receiver
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from django.utils import translation
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def get_language_from_request(request):
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"""Get the language in the session or as separate cookie.
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Django methods should be used for regular cases. This is only useful for
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very narrow cases.
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"""
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if hasattr(request, 'session'):
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language_code = request.session.get(translation.LANGUAGE_SESSION_KEY)
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if language_code:
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return language_code
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return request.COOKIES.get(settings.LANGUAGE_COOKIE_NAME)
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def set_language(request, response, language_code):
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"""Set the language in session or as a separate cookie.
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Sending language code as None removes the preference. If response is None,
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cookies are not touched and setting/deleting language cookie will not work.
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"""
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if not language_code:
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if hasattr(request, 'session'):
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try:
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del request.session[translation.LANGUAGE_SESSION_KEY]
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except KeyError:
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pass
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if response:
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try:
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response.delete_cookie(settings.LANGUAGE_COOKIE_NAME)
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except KeyError:
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pass
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return
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translation.activate(language_code)
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if hasattr(request, 'session'):
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request.session[translation.LANGUAGE_SESSION_KEY] = language_code
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else:
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response.set_cookie(
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settings.LANGUAGE_COOKIE_NAME, language_code,
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max_age=settings.LANGUAGE_COOKIE_AGE,
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path=settings.LANGUAGE_COOKIE_PATH,
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domain=settings.LANGUAGE_COOKIE_DOMAIN,
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)
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@receiver(user_logged_in)
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def _on_user_logged_in(sender, request, user, **kwargs):
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"""When the user logs in, set the current language."""
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set_language(request, None, user.userprofile.language)
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