[issue23166] urllib2 ignores opener configuration under certain circumstances

[Martin Panter]

Martin Panter added the comment:

I think these are essentially the same problem. It defeats any custom installed 
opener, not just custom HTTPS handlers.

--
nosy: +martin.panter
resolution:  -> duplicate
status: open -> closed
superseder:  -> urllib.parse.urlopen shouldn't ignore installed opener when 
called with any ca* argument

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[issue23166] urllib2 ignores opener configuration under certain circumstances

[David Ford (FirefighterBlu3)]

David Ford (FirefighterBlu3) added the comment:

I've made a patch for 3.4 that addresses this issue. See issue 18543, latest 
patch, and test file

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[issue23166] urllib2 ignores opener configuration under certain circumstances

[Demian Brecht]

Changes by Demian Brecht demianbre...@gmail.com:


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[issue23166] urllib2 ignores opener configuration under certain circumstances

[Enrico Tröger]

Enrico Tröger added the comment:

I got the same error suddenly with Python 2.7.9.

I think this is quite unfortunate because it somewhat breaks existing 
behaviour, especially that SSL certificate verification is enabled by default.
Don't get me wrong, this is the right thing in general and it is important. 
Still, adding this feature in a 2.7 patch level release and enabling it by 
default feels quite hard.
I guess this will break many scripts and applications which rely on 
non-verification of SSL certs (which is bad but it was the exisiting behaviour).

Anyway, attached is my use case where I use a HTTPS request coupled with HTTP 
basic authentication and disabled SSL cert verification.
As described above, passing a context to urlopen() will override previously 
configured handlers, unfortunately.

In the attached script there is also a workaround which works for me by not 
using urlopen() but instead calling opener.open() manually after adding the 
necessary handlers myself.
Not nice but works for the moment.

--
nosy: +eht16
Added file: http://bugs.python.org/file37810/urllib_ssl_auth_test.py

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[issue23166] urllib2 ignores opener configuration under certain circumstances

[Arfrever Frehtes Taifersar Arahesis]

Changes by Arfrever Frehtes Taifersar Arahesis arfrever@gmail.com:


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nosy: +Arfrever

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[issue23166] urllib2 ignores opener configuration under certain circumstances

[Demian Brecht]

Changes by Demian Brecht demianbre...@gmail.com:


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[issue23166] urllib2 ignores opener configuration under certain circumstances

[Benjamin Peterson]

Benjamin Peterson added the comment:

I guess there needs to be some generic way to pass ssl information to handlers.

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[issue23166] urllib2 ignores opener configuration under certain circumstances

[Jurijs Vorotilovs]

Jurijs Vorotilovs added the comment:

Attached a script demonstrating two failing cases

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Added file: http://bugs.python.org/file37605/test.py

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[issue23166] urllib2 ignores opener configuration under certain circumstances

[Jurijs Vorotilovs]

New submission from Jurijs Vorotilovs:

Python 2.7.9 has a bug in urllib2.py:urlopen().
It creates HTTPSHandler instances by its own when it should not.
One may have assigned custom openers with subclassed HTTPSHandler or 
HTTPSHandler instance with debug enabled or etc.

--
components: Library (Lib)
messages: 233427
nosy: crazyjurich
priority: normal
severity: normal
status: open
title: urllib2 ignores opener configuration under certain circumstances
type: behavior
versions: Python 2.7

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[issue23166] urllib2 ignores opener configuration under certain circumstances

[Berker Peksag]

Berker Peksag added the comment:

Thanks for the report. Could you provide an example to reproduce the issue you 
described?

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nosy: +berker.peksag, orsenthil

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