mirror of https://github.com/django/django.git
Fixed #15954 - New IGNORABLE_404_URLS setting that allows more powerful filtering of 404s to ignore
Thanks to aaugustin for implementing this. (Technically this doesn't fix the original report, as we've decided against having *any* default values, but the new feature makes it possible, and the docs have an example addressing #15954). git-svn-id: http://code.djangoproject.com/svn/django/trunk@16160 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Luke Plant
parent
db5807bdb1
commit
171df93170
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@ -246,9 +246,17 @@ ALLOWED_INCLUDE_ROOTS = ()
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# is an admin.
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ADMIN_FOR = ()
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# 404s that may be ignored.
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IGNORABLE_404_STARTS = ('/cgi-bin/', '/_vti_bin', '/_vti_inf')
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IGNORABLE_404_ENDS = ('mail.pl', 'mailform.pl', 'mail.cgi', 'mailform.cgi', 'favicon.ico', '.php')
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# List of compiled regular expression objects representing URLs that need not
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# be reported when SEND_BROKEN_LINK_EMAILS is True. Here are a few examples:
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# import re
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# IGNORABLE_404_URLS = (
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# re.compile(r'^/apple-touch-icon.*\.png$'),
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# re.compile(r'^/favicon.ico$),
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# re.compile(r'^/robots.txt$),
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# re.compile(r'^/phpmyadmin/),
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# re.compile(r'\.(cgi|php|pl)$'),
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# )
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IGNORABLE_404_URLS = ()
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# A secret key for this particular Django installation. Used in secret-key
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# hashing algorithms. Set this in your settings, or Django will complain
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@ -127,13 +127,23 @@ def _is_ignorable_404(uri):
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"""
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Returns True if a 404 at the given URL *shouldn't* notify the site managers.
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"""
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for start in settings.IGNORABLE_404_STARTS:
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if uri.startswith(start):
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return True
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for end in settings.IGNORABLE_404_ENDS:
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if uri.endswith(end):
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return True
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return False
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if getattr(settings, 'IGNORABLE_404_STARTS', ()):
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import warnings
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warnings.warn('The IGNORABLE_404_STARTS setting has been deprecated '
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'in favour of IGNORABLE_404_URLS.',
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PendingDeprecationWarning)
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for start in settings.IGNORABLE_404_STARTS:
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if uri.startswith(start):
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return True
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if getattr(settings, 'IGNORABLE_404_ENDS', ()):
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import warnings
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warnings.warn('The IGNORABLE_404_ENDS setting has been deprecated '
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'in favour of IGNORABLE_404_URLS.',
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PendingDeprecationWarning)
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for end in settings.IGNORABLE_404_ENDS:
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if uri.endswith(end):
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return True
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return any(pattern.search(uri) for pattern in settings.IGNORABLE_404_URLS)
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def _is_internal_request(domain, referer):
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"""
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@ -66,15 +66,29 @@ a referer. (It doesn't bother to email for 404s that don't have a referer --
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those are usually just people typing in broken URLs or broken Web 'bots).
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You can tell Django to stop reporting particular 404s by tweaking the
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:setting:`IGNORABLE_404_ENDS` and :setting:`IGNORABLE_404_STARTS` settings. Both
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should be a tuple of strings. For example::
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:setting:`IGNORABLE_404_URLS` setting. It should be a tuple of compiled
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regular expression objects. For example::
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IGNORABLE_404_ENDS = ('.php', '.cgi')
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IGNORABLE_404_STARTS = ('/phpmyadmin/',)
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import re
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IGNORABLE_404_URLS = (
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re.compile(r'\.(php|cgi)$'),
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re.compile(r'^/phpmyadmin/'),
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)
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In this example, a 404 to any URL ending with ``.php`` or ``.cgi`` will *not* be
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reported. Neither will any URL starting with ``/phpmyadmin/``.
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The following example shows how to exclude some conventional URLs that browsers and
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crawlers often request::
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import re
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IGNORABLE_404_URLS = (
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re.compile(r'^/apple-touch-icon.*\.png$'),
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re.compile(r'^/favicon.ico$),
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re.compile(r'^/robots.txt$),
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)
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The best way to disable this behavior is to set
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:setting:`SEND_BROKEN_LINK_EMAILS` to ``False``.
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@ -93,3 +107,10 @@ The best way to disable this behavior is to set
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records are ignored, but you can use them for error reporting by writing a
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handler and :doc:`configuring logging </topics/logging>` appropriately.
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.. seealso::
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.. versionchanged:: 1.4
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Previously, two settings were used to control which URLs not to report:
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:setting:`IGNORABLE_404_STARTS` and :setting:`IGNORABLE_404_ENDS`. They
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were replaced by :setting:`IGNORABLE_404_URLS`.
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@ -199,6 +199,10 @@ their deprecation, as per the :ref:`Django deprecation policy
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ISO 3166 code for United Kingdom). They have been depreacted since the
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1.4 release.
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* The :setting:`IGNORABLE_404_STARTS` and :setting:`IGNORABLE_404_ENDS`
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settings have been superseded by :setting:`IGNORABLE_404_URLS` in
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the 1.4 release. They will be removed.
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* 2.0
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* ``django.views.defaults.shortcut()``. This function has been moved
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to ``django.contrib.contenttypes.views.shortcut()`` as part of the
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@ -1020,25 +1020,23 @@ Available formats are ``DATE_FORMAT``, ``TIME_FORMAT``, ``DATETIME_FORMAT``,
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``SHORT_DATETIME_FORMAT``, ``FIRST_DAY_OF_WEEK``, ``DECIMAL_SEPARATOR``,
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``THOUSAND_SEPARATOR`` and ``NUMBER_GROUPING``.
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.. setting:: IGNORABLE_404_ENDS
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.. setting:: IGNORABLE_404_URLS
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IGNORABLE_404_ENDS
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IGNORABLE_404_URLS
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------------------
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Default: ``('mail.pl', 'mailform.pl', 'mail.cgi', 'mailform.cgi', 'favicon.ico', '.php')``
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.. versionadded:: 1.4
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See also ``IGNORABLE_404_STARTS`` and ``Error reporting via email``.
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Default: ``()``
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.. setting:: IGNORABLE_404_STARTS
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List of compiled regular expression objects describing URLs that should be
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ignored when reporting HTTP 404 errors via email (see
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:doc:`/howto/error-reporting`). Use this if your site does not provide a
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commonly requested file such as ``favicon.ico`` or ``robots.txt``, or if it
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gets hammered by script kiddies.
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IGNORABLE_404_STARTS
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--------------------
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Default: ``('/cgi-bin/', '/_vti_bin', '/_vti_inf')``
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A tuple of strings that specify beginnings of URLs that should be ignored by
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the 404 emailer. See ``SEND_BROKEN_LINK_EMAILS``, ``IGNORABLE_404_ENDS`` and
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the :doc:`/howto/error-reporting`.
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This is only used if :setting:`SEND_BROKEN_LINK_EMAILS` is set to ``True`` and
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``CommonMiddleware`` is installed (see :doc:`/topics/http/middleware`).
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.. setting:: INSTALLED_APPS
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@ -1435,8 +1433,8 @@ Default: ``False``
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Whether to send an email to the ``MANAGERS`` each time somebody visits a
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Django-powered page that is 404ed with a non-empty referer (i.e., a broken
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link). This is only used if ``CommonMiddleware`` is installed (see
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:doc:`/topics/http/middleware`. See also ``IGNORABLE_404_STARTS``,
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``IGNORABLE_404_ENDS`` and :doc:`/howto/error-reporting`.
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:doc:`/topics/http/middleware`). See also ``IGNORABLE_404_URLS`` and
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:doc:`/howto/error-reporting`.
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.. setting:: SERIALIZATION_MODULES
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@ -2045,6 +2043,22 @@ DATABASE_USER
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This setting has been replaced by :setting:`USER` in
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:setting:`DATABASES`.
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.. setting:: IGNORABLE_404_ENDS
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IGNORABLE_404_ENDS
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------------------
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.. deprecated:: 1.4
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This setting has been superseded by :setting:`IGNORABLE_404_URLS`.
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.. setting:: IGNORABLE_404_STARTS
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IGNORABLE_404_STARTS
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--------------------
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.. deprecated:: 1.4
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This setting has been superseded by :setting:`IGNORABLE_404_URLS`.
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.. setting:: TEST_DATABASE_CHARSET
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TEST_DATABASE_CHARSET
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@ -2071,4 +2085,3 @@ TEST_DATABASE_NAME
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.. deprecated:: 1.2
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This setting has been replaced by :setting:`TEST_NAME` in
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:setting:`DATABASES`.
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@ -176,3 +176,41 @@ Save this model manager in your custom comment app (e.g. in
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For more details see the docs about
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:doc:`customizing the comments framework </ref/contrib/comments/custom>`.
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`IGNORABLE_404_STARTS` and `IGNORABLE_404_ENDS` settings
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Django can report 404 errors: see :doc:`/howto/error-reporting`.
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Until Django 1.3, it was possible to exclude some URLs from the reporting
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by adding prefixes to :setting:`IGNORABLE_404_STARTS` and suffixes to
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:setting:`IGNORABLE_404_ENDS`.
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In Django 1.4, these two settings are superseded by
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:setting:`IGNORABLE_404_URLS`, which is a list of compiled regular expressions.
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Django won't send an email for 404 errors on URLs that match any of them.
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Furthermore, the previous settings had some rather arbitrary default values::
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IGNORABLE_404_STARTS = ('/cgi-bin/', '/_vti_bin', '/_vti_inf')
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IGNORABLE_404_ENDS = ('mail.pl', 'mailform.pl', 'mail.cgi', 'mailform.cgi',
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'favicon.ico', '.php')
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It's not Django's role to decide if your website has a legacy ``/cgi-bin/``
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section or a ``favicon.ico``. As a consequence, the default values of
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:setting:`IGNORABLE_404_URLS`, :setting:`IGNORABLE_404_STARTS` and
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:setting:`IGNORABLE_404_ENDS` are all now empty.
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If you have customized :setting:`IGNORABLE_404_STARTS` or
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:setting:`IGNORABLE_404_ENDS`, or if you want to keep the old default value,
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you should add the following lines in your settings file::
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import re
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IGNORABLE_404_URLS = (
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# for each <prefix> in IGNORABLE_404_STARTS
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re.compile(r'^<prefix>'),
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# for each <suffix> in IGNORABLE_404_ENDS
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re.compile(r'<suffix>$'),
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)
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Don't forget to escape characters that have a special meaning in a regular
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expression.
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@ -1,6 +1,9 @@
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# -*- coding: utf-8 -*-
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import re
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from django.conf import settings
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from django.core import mail
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from django.http import HttpRequest
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from django.middleware.common import CommonMiddleware
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from django.middleware.http import ConditionalGetMiddleware
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@ -9,12 +12,16 @@ from django.test import TestCase
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class CommonMiddlewareTest(TestCase):
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def setUp(self):
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self.slash = settings.APPEND_SLASH
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self.www = settings.PREPEND_WWW
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self.append_slash = settings.APPEND_SLASH
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self.prepend_www = settings.PREPEND_WWW
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self.ignorable_404_urls = settings.IGNORABLE_404_URLS
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self.send_broken_email_links = settings.SEND_BROKEN_LINK_EMAILS
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def tearDown(self):
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settings.APPEND_SLASH = self.slash
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settings.PREPEND_WWW = self.www
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settings.APPEND_SLASH = self.append_slash
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settings.PREPEND_WWW = self.prepend_www
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settings.IGNORABLE_404_URLS = self.ignorable_404_urls
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settings.SEND_BROKEN_LINK_EMAILS = self.send_broken_email_links
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def _get_request(self, path):
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request = HttpRequest()
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@ -249,6 +256,36 @@ class CommonMiddlewareTest(TestCase):
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self.assertEqual(r['Location'],
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'http://www.testserver/middleware/customurlconf/slash/')
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# Tests for the 404 error reporting via email
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def test_404_error_reporting(self):
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settings.IGNORABLE_404_URLS = (re.compile(r'foo'),)
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settings.SEND_BROKEN_LINK_EMAILS = True
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request = self._get_request('regular_url/that/does/not/exist')
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request.META['HTTP_REFERER'] = '/another/url/'
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response = self.client.get(request.path)
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CommonMiddleware().process_response(request, response)
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self.assertEqual(len(mail.outbox), 1)
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self.assertIn('Broken', mail.outbox[0].subject)
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def test_404_error_reporting_no_referer(self):
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settings.IGNORABLE_404_URLS = (re.compile(r'foo'),)
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settings.SEND_BROKEN_LINK_EMAILS = True
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request = self._get_request('regular_url/that/does/not/exist')
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response = self.client.get(request.path)
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CommonMiddleware().process_response(request, response)
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self.assertEqual(len(mail.outbox), 0)
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def test_404_error_reporting_ignored_url(self):
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settings.IGNORABLE_404_URLS = (re.compile(r'foo'),)
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settings.SEND_BROKEN_LINK_EMAILS = True
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request = self._get_request('foo_url/that/does/not/exist/either')
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request.META['HTTP_REFERER'] = '/another/url/'
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response = self.client.get(request.path)
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CommonMiddleware().process_response(request, response)
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self.assertEqual(len(mail.outbox), 0)
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class ConditionalGetMiddlewareTest(TestCase):
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urls = 'regressiontests.middleware.cond_get_urls'
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def setUp(self):
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