* fix: add rate limiting to email/password sign-in and sign-up endpoints
All four password authentication views (app sign-in, app sign-up, space
sign-in, space sign-up) extended django.views.View, so DRF's global
AnonRateThrottle never ran and the endpoints accepted unlimited credential
guesses with no friction (brute-force / credential stuffing, GHSA-349j).
Add authentication_throttle_allows(request) at the top of each post()
method — before any DB access — using the same AuthenticationThrottle
already guarding the magic-code views. On rejection the view redirects with
RATE_LIMIT_EXCEEDED, consistent with all other throttled auth endpoints.
Default limit remains 10/minute, overridable via AUTHENTICATION_RATE_LIMIT.
Co-authored-by: Plane AI <noreply@plane.so>
* refactor: consolidate auth throttle into a decorator + add tests
- Extract the repeated throttle-and-redirect block from the six redirect-flow
auth views (email + magic, app + space) into a single throttle_auth_redirect
decorator in rate_limit.py. Behaviour is unchanged: the throttle still runs
before any DB access; brute-force traffic is rejected without a DB hit.
- Add regression tests for the password sign-in/sign-up throttle on both app
and space endpoints, mirroring the existing magic-code throttle tests.
- Reset the shared AuthenticationThrottle bucket before every test in
test_authentication.py. All auth endpoints share one per-IP throttle scope,
so the newly-throttled password requests exhausted the budget mid-file and
caused unrelated tests to trip RATE_LIMIT_EXCEEDED.
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Co-authored-by: Plane AI <noreply@plane.so>
Co-authored-by: sriramveeraghanta <veeraghanta.sriram@gmail.com>