Pylons / pyramid

Pyramid - A Python web framework
https://trypyramid.com/
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fix secured views to avoid being applied to exception views #3741

Closed mmerickel closed 8 months ago

mmerickel commented 8 months ago

fixes https://github.com/Pylons/pyramid/issues/3736

Found some scenarios in which an exception view was wrapped in secure views which is not intended after info.exception_only was added. The main issue encountered is that there were tests for info.exception_only and permission is None but actually a default exception view has permission == NO_PERMISSION_REQUIRED so this new logic normalizes that.

While in there, I was able to re-order a bunch of the logic to early-out quicker.

Because exception views are no longer involved in security checks, this avoids the issue ran into via #3736 where an invalid URL was tested, which shouldn't happen while processing any normal exception views.