[3.11] gh-143925: Reject control characters in data: URL mediatypes

[sethmlarson]

(cherry picked from commit f25509e) (cherry picked from commit 2c9c746)

• Issue: Reject control characters in data: URL mediatypes #143925

[pablogsal]

LGTM Thanks a lot @sethmlarson

[bedevere-bot]

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot ARM64 macOS 3.11 (tier-2) has failed when building commit 3f396ca.

What do you need to do:

1. Don't panic.
2. Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
3. Go to the page of the buildbot that failed (https://buildbot.python.org/#/builders/1030/builds/1910) and take a look at the build logs.
4. Check if the failure is related to this commit (3f396ca) or if it is a false positive.
5. If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/#/builders/1030/builds/1910

Failed tests:

• test_urllib2net
• test_ssl

Failed subtests:

• test_preauth_data_to_tls_server - test.test_ssl.TestPreHandshakeClose.test_preauth_data_to_tls_server

Summary of the results of the build (if available):

==

Click to see traceback logs

Traceback (most recent call last): File "/Users/buildbot/buildarea/3.11.pablogsal-macos-m1.macos-with-brew/build/Lib/test/test_ssl.py", line 5095, in test_preauth_data_to_tls_serverself.non_linux_skip_if_other_okay_error(wrap_error) File "/Users/buildbot/buildarea/3.11.pablogsal-macos-m1.macos-with-brew/build/Lib/test/test_ssl.py", line 5042, in non_linux_skip_if_other_okay_error re.search('wrong.version.number', getattr(err, "reason", ""), re.I)): ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/Users/buildbot/buildarea/3.11.pablogsal-macos-m1.macos-with-brew/build/Lib/re/__init__.py", line 176, in searchreturn _compile(pattern, flags).search(string) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^TypeError: expected string or bytes-like object, got 'NoneType'