GSOC 2023 Proposal Feedback on Security: Bring CORS and CSP into core

[Anvesh Mishra]

I created a draft proposal GSOC Proposal [Security: Bring CORS and CSP into core] - Google Docs 3 I would be glad if you could review it once  
Some key notes on the proposal:

1. CSP is to be added to SecurityMiddleware as suggested by @timgraham in his closing notes on PR-5776 . I will be following the design of Referrer Policy and implementing some extra features such as nonce context processor.
2. A doubt that I had is since CSP consists of a number of directives so will creating settings attributes for each one of them be a valid option or we can stick to the proposed way of declaring it in a single comma separated string as done with Referrer Policy.
3. Currently this proposal proposes CORS to be implemented via the addition of CORSMiddleware but I was thinking if implementing CORS into SecurityMiddleware would be the right way or not?
4. Also since I propose to add CSP to SecurityMiddleware we would have to create SecurityMiddleware._make_nonce(request), I don’t know if this breaks the design of SecurityMiddleware. The mock implementation of CSP in SecurityMiddleware can be seen here CSP mock implementation .
5. Decorators will be added to both CORS and CSP with CORS having 3 decorators and CSP having 4 decorators.

[Carlton Gibson]

Hi Anvesh. 

I replied to your forum post: https://forum.djangoproject.com/t/gsoc-2023-discussion-on-security-bring-cors-and-csp-into-core/18932/7 — let's keep the discussion in one place please. Thanks.

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[Anvesh Mishra]

Thanks Carlton,

My bad will make sure to keep the discussion in one place. 😓