59 lines
1.7 KiB
Python
59 lines
1.7 KiB
Python
from zoneinfo import ZoneInfo
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from django.db.models import Q
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from django.utils import timezone as tz
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from .models import Station
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from .utils import Redirect
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__all__ = ("AircoxMiddleware",)
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class AircoxMiddleware(object):
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"""Middleware used to get default info for the given website.
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It provide following request attributes:
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- ``mobile``: set to True if mobile device is detected
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- ``station``: current Station
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This middleware must be set after the middleware
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'django.contrib.auth.middleware.AuthenticationMiddleware',
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"""
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timezone_session_key = "aircox.timezone"
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def __init__(self, get_response):
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self.get_response = get_response
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def is_mobile(self, request):
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if agent := request.META.get("HTTP_USER_AGENT"):
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return " Mobi" in agent
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return False
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def get_station(self, request):
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"""Return station for the provided request."""
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host = request.get_host()
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expr = Q(default=True) | Q(hosts=host) | Q(hosts__contains=host + "\n")
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return Station.objects.filter(expr).order_by("default").first()
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def init_timezone(self, request):
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# note: later we can use http://freegeoip.net/ on user side if
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# required
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timezone = None
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try:
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timezone = request.session.get(self.timezone_session_key)
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if timezone:
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timezone = ZoneInfo(timezone)
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tz.activate(timezone)
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except Exception:
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pass
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def __call__(self, request):
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self.init_timezone(request)
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request.station = self.get_station(request)
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request.is_mobile = self.is_mobile(request)
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try:
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return self.get_response(request)
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except Redirect:
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return
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