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@@ -0,0 +1,37 @@
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+__package__ = 'archivebox.core'
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+
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+from django.utils import timezone
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+
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+from ..config import PUBLIC_SNAPSHOTS
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+
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+
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+def detect_timezone(request, activate: bool=True):
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+ gmt_offset = (request.COOKIES.get('GMT_OFFSET') or '').strip()
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+ tz = None
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+ if gmt_offset.replace('-', '').isdigit():
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+ tz = timezone.get_fixed_timezone(int(gmt_offset))
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+ if activate:
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+ timezone.activate(tz)
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+ # print('GMT_OFFSET', gmt_offset, tz)
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+ return tz
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+
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+
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+def TimezoneMiddleware(get_response):
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+ def middleware(request):
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+ detect_timezone(request, activate=True)
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+ return get_response(request)
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+
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+ return middleware
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+
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+
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+def CacheControlMiddleware(get_response):
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+ def middleware(request):
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+ response = get_response(request)
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+
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+ if '/archive/' in request.path or '/static/' in request.path:
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+ policy = 'public' if PUBLIC_SNAPSHOTS else 'private'
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+ response['Cache-Control'] = f'{policy}, max-age=60, stale-while-revalidate=300'
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+ # print('Set Cache-Control header to', response['Cache-Control'])
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+ return response
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+
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+ return middleware
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Nick Sweeting