- Validate filename returned by FileField.upload_to() not a filename
passed to the FileField.generate_filename() (upload_to() may
completely ignored passed filename).
- Allow relative paths (without dot segments) in the generated filename.
Thanks to Jakub Kleň for the report and review.
Thanks to all folks for checking this patch on existing projects.
Thanks Florian Apolloner and Markus Holtermann for the discussion and
implementation idea.
Regression in 0b79eb36915d178aef5c6a7bbce71b1e76d376d3.
Backport of b55699968fc9ee985384c64e37f6cc74a0a23683 from main
The validate_file_name() sanitation introduced in
0b79eb36915d178aef5c6a7bbce71b1e76d376d3 correctly rejects the example
file name as containing path elements on Windows. This breaks the test
introduced in 914c72be2abb1c6dd860cb9279beaa66409ae1b2 to allow path
components for storages that may allow them.
Test is skipped pending a discussed storage refactoring to support this
use-case.
Backport of a708f39ce67af174df90c5b5e50ad1976cec7cb8 from main