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[2.7] bpo-36742: Fix urlparse.urlsplit() error message for Unicode URL #13937

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Merged
merged 3 commits into from
Jun 11, 2019
Merged

[2.7] bpo-36742: Fix urlparse.urlsplit() error message for Unicode URL #13937

merged 3 commits into from
Jun 11, 2019

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vstinner
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@vstinner vstinner commented Jun 10, 2019 •
edited by bedevere-bot
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If urlparse.urlsplit() detects an invalid netloc according to NFKC
normalization, the error message type is now str rather than unicode,
and use repr() to format the URL, to prevent <exception str() failed>
when display the error message.

https://bugs.python.org/issue36742

@vstinner vstinner requested a review from zooba June 10, 2019 10:00
@vstinner
bpo-36742: Fix urlparse.urlsplit() error message for Unicode URL
ed777b3 
If urlparse.urlsplit() detects an invalid netloc according to NFKC
normalization, the error message type is now str rather than unicode,
and use repr() to format the URL, to prevent <exception str() failed>
when display the error message.
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This change fix the bug described at: https://bugs.python.org/issue36742#msg344981

Script:

import urlparse as urllib_parse
url = u'example.com\uFF03@bing.com'
url = u'http://\u30d5\u309a\ufe1380'
urllib_parse.urlsplit(url)

Output without the fix:

ValueError: <exception str() failed>

Output with the fix:

ValueError: netloc u'\u30d7:80' contains invalid characters under NFKC normalization

@vstinner
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cc @stratakis @encukou

tirkarthi
tirkarthi reviewed Jun 10, 2019
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orsenthil
orsenthil approved these changes Jun 10, 2019
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lgtm.

@vstinner
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cc @tirkarthi @zooba @gpshead

tirkarthi
tirkarthi reviewed Jun 10, 2019
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Lib/urlparse.py Outdated
u"characters under NFKC normalization")
raise ValueError("netloc %r contains invalid characters "
"under NFKC normalization"
% netloc2)
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Should netloc be reported in the error message? Python 3 and previous error messages report netloc.

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Oh. You're right. I also fixed this bug and I updated the unit test to test this case.

tirkarthi
tirkarthi approved these changes Jun 10, 2019
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LGTM. Thanks.

@vstinner vstinner merged commit 2b57847 into python:2.7 Jun 11, 2019
@vstinner vstinner deleted the urlparse_str_errmsg branch June 11, 2019 10:45
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Thanks for review @tirkarthi and @orsenthil!

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@orsenthil orsenthil orsenthil approved these changes

@tirkarthi tirkarthi tirkarthi approved these changes

@zooba zooba Awaiting requested review from zooba

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@vstinner @orsenthil @tirkarthi @the-knights-who-say-ni @bedevere-bot