[issue26570] comma-separated cookies with expires header do not parse properly

[SilentGhost]

SilentGhost added the comment:

This is not a regression and you can see that if you do

print(SimpleCookie('A=B; expires=Thu, 01-Jan-1970 00:00:00 GMT, C=D'))

The values of expires and Path attribute were parsed incorrectly, even though 
you got two cookies. The problem as far as I can see is a non-standard 
separator between attributes that you're trying to use, i.e. a comma. If you 
were to use a semi-colon (or a space) there would not be a problem in any of 
the versions.

--
nosy: +SilentGhost
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed
type:  -> behavior

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[issue26570] comma-separated cookies with expires header do not parse properly

[Ilya Kreymer]

New submission from Ilya Kreymer:

This is a peculiar regression in 3.5 where a comma-separated cookie following 
an expires field is considered invalid:

Ex: which results in a silent error/empty cookie in 3.5.1

Python 3.5.1 (default, Dec 26 2015, 18:11:22) 
[GCC 4.2.1 Compatible Apple LLVM 7.0.2 (clang-700.1.81)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from http.cookies import SimpleCookie
>>> SimpleCookie('A=B; expires=Thu, 01-Jan-1970 00:00:00 GMT, C=D')


compared to 3.4.2 and 2.7.9

Python 3.4.2 (default, Jan 29 2015, 06:45:30) 
[GCC 4.2.1 Compatible Apple LLVM 5.1 (clang-503.0.40)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from http.cookies import SimpleCookie
>>> SimpleCookie('A=B; expires=Thu, 01-Jan-1970 00:00:00 GMT, C=D')


Python 2.7.9 (default, Jan 29 2015, 06:28:46) 
[GCC 4.2.1 Compatible Apple LLVM 5.1 (clang-503.0.40)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from Cookie import SimpleCookie
>>> SimpleCookie('A=B; expires=Thu, 01-Jan-1970 00:00:00 GMT, C=D')





This seems to specifically happen when the expires field is the last field in 
the cookie.
eg, this works as expected:

>>> SimpleCookie('A=B; expires=Thu, 01-Jan-1970 00:00:00 GMT; Path=/, C=D')


I'm not sure if this is related to the other comma-related cookie bugs, such as 
issue26302 as this does not appear to use the same regex at first glance. I 
have not had a chance to track it down it further.

--
components: Library (Lib)
messages: 261839
nosy: ikreymer
priority: normal
severity: normal
status: open
title: comma-separated cookies with expires header do not parse properly
versions: Python 3.5

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