67 lines
2.3 KiB
Python
67 lines
2.3 KiB
Python
from __future__ import annotations
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import secrets
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from django.contrib.messages import get_messages
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from .consent import ConsentService
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class ConsentMiddleware:
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def __init__(self, get_response):
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self.get_response = get_response
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def __call__(self, request):
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request.consent = ConsentService.get_consent(request)
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return self.get_response(request)
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class SecurityHeadersMiddleware:
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def __init__(self, get_response):
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self.get_response = get_response
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ADMIN_PREFIXES = ("/cms/", "/django-admin/")
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def __call__(self, request):
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nonce = secrets.token_urlsafe(16)
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request.csp_nonce = nonce
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response = self.get_response(request)
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if request.path.startswith(self.ADMIN_PREFIXES):
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return response
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response["Content-Security-Policy"] = (
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f"default-src 'self'; "
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f"script-src 'self' 'nonce-{nonce}' https://challenges.cloudflare.com; "
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"style-src 'self' https://fonts.googleapis.com; "
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"img-src 'self' data: blob:; "
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"font-src 'self' https://fonts.gstatic.com; "
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"connect-src 'self' https://challenges.cloudflare.com; "
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"frame-src https://challenges.cloudflare.com; "
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"object-src 'none'; "
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"base-uri 'self'; "
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"frame-ancestors 'self'"
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)
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response["Permissions-Policy"] = "camera=(), microphone=(), geolocation=()"
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return response
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class AdminMessageGuardMiddleware:
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ADMIN_PREFIXES = ("/cms/", "/django-admin/")
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def __init__(self, get_response):
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self.get_response = get_response
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def __call__(self, request):
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# The public site has no legitimate use of Django's shared flash queue.
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# Drain any stale admin messages before frontend rendering can see them.
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if not request.path.startswith(self.ADMIN_PREFIXES):
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storage = get_messages(request)
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list(storage)
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storage._queued_messages = []
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storage._loaded_data = []
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for sub_storage in getattr(storage, "storages", []):
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sub_storage._queued_messages = []
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sub_storage._loaded_data = []
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sub_storage.used = True
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storage.used = True
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return self.get_response(request)
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