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[1.2.X] Altered the behavior of URLField to avoid a potential DOS vec…

…tor, and to avoid potential leakage of local filesystem data. A security announcement will be made shortly.

Backport of r16760 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.2.X@16766 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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commit 7268f8af86186518821d775c530d5558fd726930 1 parent ac7c3a1
@freakboy3742 freakboy3742 authored
View
2  django/db/models/fields/__init__.py
@@ -1119,7 +1119,7 @@ def formfield(self, **kwargs):
class URLField(CharField):
description = _("URL")
- def __init__(self, verbose_name=None, name=None, verify_exists=True, **kwargs):
+ def __init__(self, verbose_name=None, name=None, verify_exists=False, **kwargs):
kwargs['max_length'] = kwargs.get('max_length', 200)
CharField.__init__(self, verbose_name, name, **kwargs)
self.validators.append(validators.URLValidator(verify_exists=verify_exists))
View
8 docs/ref/models/fields.txt
@@ -814,7 +814,7 @@ shortcuts.
``URLField``
------------
-.. class:: URLField([verify_exists=True, max_length=200, **options])
+.. class:: URLField([verify_exists=False, max_length=200, **options])
A :class:`CharField` for a URL. Has one extra optional argument:
@@ -827,6 +827,12 @@ A :class:`CharField` for a URL. Has one extra optional argument:
validating a URL being served by the same server will hang. This should not
be a problem for multithreaded servers.
+.. versionchanged:: 1.2
+
+ The default value of ``verify_exists`` has been changed to
+ ``False``. This argument should not be set to ``True`` because it
+ has security and performance problems.
+
The admin represents this as an ``<input type="text">`` (a single-line input).
Like all :class:`CharField` subclasses, :class:`URLField` takes the optional
View
8 tests/modeltests/validation/tests.py
@@ -52,14 +52,6 @@ def test_wrong_url_value_raises_error(self):
mtv = ModelToValidate(number=10, name='Some Name', url='not a url')
self.assertFieldFailsValidationWithMessage(mtv.full_clean, 'url', [u'Enter a valid value.'])
- def test_correct_url_but_nonexisting_gives_404(self):
- mtv = ModelToValidate(number=10, name='Some Name', url='http://google.com/we-love-microsoft.html')
- self.assertFieldFailsValidationWithMessage(mtv.full_clean, 'url', [u'This URL appears to be a broken link.'])
-
- def test_correct_url_value_passes(self):
- mtv = ModelToValidate(number=10, name='Some Name', url='http://www.djangoproject.com/')
- self.assertEqual(None, mtv.full_clean()) # This will fail if there's no Internet connection
-
def test_text_greater_that_charfields_max_length_eaises_erros(self):
mtv = ModelToValidate(number=10, name='Some Name'*100)
self.assertFailsValidation(mtv.full_clean, ['name',])

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