50 lines
2.0 KiB
Python
50 lines
2.0 KiB
Python
"""passbook app_gw views"""
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from urllib.parse import urlparse
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from django.conf import settings
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from django.core.cache import cache
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from django.http import HttpRequest, HttpResponse
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from django.views import View
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from structlog import get_logger
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from passbook.core.views.access import AccessMixin
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from passbook.providers.app_gw.models import ApplicationGatewayProvider
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ORIGINAL_URL = 'HTTP_X_ORIGINAL_URL'
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LOGGER = get_logger()
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def cache_key(session_cookie: str, request: HttpRequest) -> str:
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"""Cache Key for request fingerprinting"""
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fprint = '_'.join([
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session_cookie,
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request.META.get('HTTP_HOST'),
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request.META.get('PATH_INFO'),
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])
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return f"app_gw_{fprint}"
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class NginxCheckView(AccessMixin, View):
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"""View used by nginx's auth_request module"""
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def dispatch(self, request: HttpRequest) -> HttpResponse:
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session_cookie = request.COOKIES.get(settings.SESSION_COOKIE_NAME, '')
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_cache_key = cache_key(session_cookie, request)
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if cache.get(_cache_key):
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return HttpResponse(status=202)
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parsed_url = urlparse(request.META.get(ORIGINAL_URL))
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# request.session[AuthenticationView.SESSION_ALLOW_ABSOLUTE_NEXT] = True
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# request.session[AuthenticationView.SESSION_FORCE_COOKIE_HOSTNAME] = parsed_url.hostname
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if not request.user.is_authenticated:
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return HttpResponse(status=401)
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matching = ApplicationGatewayProvider.objects.filter(
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server_name__contains=[parsed_url.hostname])
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if not matching.exists():
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LOGGER.debug("Couldn't find matching application", host=parsed_url.hostname)
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return HttpResponse(status=403)
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application = self.provider_to_application(matching.first())
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has_access, _ = self.user_has_access(application, request.user)
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if has_access:
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cache.set(_cache_key, True)
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return HttpResponse(status=202)
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LOGGER.debug("User not passing", user=request.user)
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return HttpResponse(status=401)
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