68 lines
1.9 KiB
Python
68 lines
1.9 KiB
Python
from time import time
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from django.core.exceptions import MiddlewareNotUsed
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from core import sentry
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from core.models import Config
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class HeadersMiddleware:
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"""
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Deals with Accept request headers, and Cache-Control response ones.
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"""
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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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accept = request.headers.get("accept", "text/html").lower()
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request.ap_json = (
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"application/json" in accept
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or "application/ld" in accept
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or "application/activity" in accept
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)
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response = self.get_response(request)
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if "Cache-Control" not in response.headers:
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response.headers["Cache-Control"] = "no-store, max-age=0"
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return response
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class ConfigLoadingMiddleware:
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"""
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Caches the system config every request
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"""
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refresh_interval: float = 5.0
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def __init__(self, get_response):
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self.get_response = get_response
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self.config_ts: float = 0.0
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def __call__(self, request):
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# Allow test fixtures to force and lock the config
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if not getattr(Config, "__forced__", False):
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if (
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not getattr(Config, "system", None)
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or (time() - self.config_ts) >= self.refresh_interval
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):
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Config.system = Config.load_system()
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self.config_ts = time()
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response = self.get_response(request)
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return response
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class SentryTaggingMiddleware:
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"""
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Sets Sentry tags at the start of the request if Sentry is configured.
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"""
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def __init__(self, get_response):
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if not sentry.SENTRY_ENABLED:
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raise MiddlewareNotUsed()
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self.get_response = get_response
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def __call__(self, request):
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sentry.set_takahe_app("web")
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response = self.get_response(request)
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return response
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