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bpo-991266: Fix quoting of the Comment attribute of SimpleCookie by berkerpeksag · Pull Request #6555 · python/cpython · GitHub

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bpo-991266: Fix quoting of the Comment attribute of SimpleCookie #6555

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Merged
berkerpeksag merged 1 commit into from
Apr 22, 2018
Conversation 6 Commits 1 Checks 0 Files changed
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bpo-991266: Fix quoting of the Comment attribute of SimpleCookie #6555

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2 changes: 2 additions & 0 deletions Lib/http/cookies.py
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Original file line number Diff line number Diff line change
Expand Up @@ -408,6 +408,8 @@ def OutputString(self, attrs=None):
append("%s=%s" % (self._reserved[key], _getdate(value)))
elif key == "max-age" and isinstance(value, int):
append("%s=%d" % (self._reserved[key], value))
elif key == "comment" and isinstance(value, str):
append("%s=%s" % (self._reserved[key], _quote(value)))

alex Apr 20, 2018

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

This patch looks like it correctly solves this problem, however is there a reason not to quote all values? (line417)

berkerpeksag Apr 21, 2018

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

Like I said in the issue (https://bugs.python.org/issue991266#msg315499) I'm a bit reluctant on that idea. The situation with cookie specs is a bit painful to deal :) Also, I'm not sure we can do that in bugfix releases because of backwards compatibility reasons.

Perhaps we can be a little bit conservative and merge this for now and discuss (like taking a look at other programming languages) a broader change like you and Mark mentioned in the issue for 3.8? I wrote this patch almost two years ago and to be honest I don't remember RFC 6265 and other relevant specs (2109, 2068 etc.) anymore :)

alex Apr 21, 2018

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

Ok, I'm fine to 👍 this since it is correct.
elif key in self._flags:
if value:
append(str(self._reserved[key]))
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10 changes: 10 additions & 0 deletions Lib/test/test_http_cookies.py
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Expand Up @@ -220,6 +220,16 @@ def test_illegal_chars(self):
with self.assertRaises(cookies.CookieError):
C.load(rawdata)

def test_comment_quoting(self):
c = cookies.SimpleCookie()
c['foo'] = '\N{COPYRIGHT SIGN}'
self.assertEqual(str(c['foo']), 'Set-Cookie: foo="\\251"')
c['foo']['comment'] = 'comment \N{COPYRIGHT SIGN}'
self.assertEqual(
str(c['foo']),
'Set-Cookie: foo="\\251"; Comment="comment \\251"'
)


class MorselTests(unittest.TestCase):
"""Tests for the Morsel object."""
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Library/2018-04-21-00-24-08.bpo-991266.h93TP_.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Fix quoting of the ``Comment`` attribute of :class:`http.cookies.SimpleCookie`.
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