cgi.py does not correctly handle fields with ';'

[1aacda76-7c51-4205-abac-b9e80312b0a4]

BPO	1055234
Nosy	@freddrake
Files	cgi.patch: Patch to cgi.py

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

Show more details

GitHub fields: ```python assignee = 'https://github.com/freddrake' closed_at = created_at = labels = ['library'] title = "cgi.py does not correctly handle fields with ';'" updated_at = user = 'https://bugs.python.org/kv11111' ``` bugs.python.org fields: ```python activity = actor = 'fdrake' assignee = 'fdrake' closed = True closed_date = closer = 'fdrake' components = ['Library (Lib)'] creation = creator = 'kv11111' dependencies = [] files = ['6330'] hgrepos = [] issue_num = 1055234 keywords = ['patch'] message_count = 3.0 messages = ['47175', '47176', '76921'] nosy_count = 2.0 nosy_names = ['fdrake', 'kv11111'] pr_nums = [] priority = 'normal' resolution = 'fixed' stage = 'resolved' status = 'closed' superseder = None type = None url = 'https://bugs.python.org/issue1055234' versions = ['Python 2.3'] ```

[1aacda76-7c51-4205-abac-b9e80312b0a4]

When I'm trying to upload file named 'a;b' cgi.py says that it is named '"a'. Simple patch to fix it attached. P.S. The same bug are present in mimetools.py and may be in other same places.

[freddrake]

Logged In: YES user_id=3066

The Content-Disposition header is defined in RFC 2183:

http://www.faqs.org/rfcs/rfc2183.html

[freddrake]

This is now fixed for Python 2.6.?, 2.7, 3.0.1, and 3.1.

I've no idea why I didn't write a test for this sooner.