#12989: URLValidator's verify_exists fails on IDN (Internationalized Domain
Names)
---------------------------+------------------------------------------------
Reporter: frasern | Owner: nobody
Status: new | Milestone:
Component: Uncategorized | Version: 1.1
Keywords: | Stage: Unreviewed
Has_patch: 0 |
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Changeset [12474] introduced validation for IDN values in URLs. However,
the `verify_exists=True` functionality doesn't work when you try to verify
an IDN exists...
{{{
>>> from django.core.validators import URLValidator
>>> url = u'http://עברית.idn.icann.org'
>>> URLValidator(url)
True
>>> URLValidator(url, verify_exists=True)
ValidationError
}}}
The problem seems to be that `urllib2` doesn't support IDN directly:
{{{
>>> req = urllib2.Request(url)
>>> urllib2.urlopen(req)
UnicodeEncodeError...
}}}
This can be resolved if the IDNA-encoded version is used instead:
{{{
idna_url = 'http://xn--54b7fta0cc.idn.icann.org/'
>>> req = urllib2.Request(idna_url)
>>> urllib2.urlopen(req)
<addinfourl at 3082877196L whose fp = <socket._fileobject object at
0xb7c1333c>>
}}}
ICANN has a [http://idn.icann.org/#The_example.test_names|list of example
names] which might be useful for testing.
See also discussion at http://groups.google.com/group/django-
developers/browse_frm/thread/6403db0c5229700a
--
Ticket URL: <http://code.djangoproject.com/ticket/12989>
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