validate_ipv4_address() was affected only on Python < 3.9.5, see [1].
URLValidator() uses a regular expressions and it was affected on all
Python versions.
[1] https://bugs.python.org/issue36384
- 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.
In Python 3.9.5+ urllib.parse() automatically removes ASCII newlines
and tabs from URLs [1, 2]. Unfortunately it created an issue in
the URLValidator. URLValidator uses urllib.urlsplit() and
urllib.urlunsplit() for creating a URL variant with Punycode which no
longer contains newlines and tabs in Python 3.9.5+. As a consequence,
the regular expression matched the URL (without unsafe characters) and
the source value (with unsafe characters) was considered valid.
[1] https://bugs.python.org/issue43882 and
[2] 76cd81d603
Backport of e1e81aa1c4427411e3c68facdd761229ffea6f6f from main.
Thanks Florian Apolloner, Shai Berger, and Simon Charette for reviews.
Thanks Wang Baohua for the report.
Backport of 05413afa8c18cdb978fcdf470e09f7a12b234a23 from master.
Fixed sending emails crash on email addresses with display names longer
then 75 chars on Python 3.6.11+, 3.7.8+, and 3.8.4+.
Wrapped display names were passed to email.headerregistry.Address()
what caused raising an exception because address parts cannot contain
CR or LF.
See https://bugs.python.org/issue39073
Co-Authored-By: Mariusz Felisiak <felisiak.mariusz@gmail.com>
Backport of 96a3ea39ef0790dbc413dde0a3e19f6a769356a2 from master.
Cookies with the "SameSite" flag set to None and without the "secure"
flag will be soon rejected by latest browser versions.
This affects sessions and messages cookies.
Backport of 331324ecce1330dce3dbd1713203cb9a42854ad7 from stable/3.0.x
Regression in e3e48b00127c09eafe6439d980a82fc5c591b673.
Thanks to Shai Berger for report, reproduce and suggested fix.
Backport of dd1ca50b096bf0351819aabc862e91a9797ddaca from master.
