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django-bogofilter-0.1
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مشاهده بیشترتوضیحات
Bayesian spam filtering for django_comments using bogofilter
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | django-bogofilter-0.1 |
| نام | django-bogofilter |
| نسخه کتابخانه | 0.1 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Stefan Talpalaru |
| ایمیل نویسنده | stefantalpalaru@yahoo.com |
| آدرس صفحه اصلی | https://github.com/stefantalpalaru/django-bogofilter |
| آدرس اینترنتی | https://pypi.org/project/django-bogofilter/ |
| مجوز | BSD |
description
-----------
Bayesian filtering applied to comment spam.
When CAPTCHA can't cut it anymore, Akismet and Disqus are not an option
and the weasels are closing in it's time to look at how the problem is
tackled for the biggest spam target of all time: email. Statistical
analysis of word frequency in individual messages proved to be simple,
fast and reliable given enough training data.
The trick to using a tool designed for emails on comment spam is to
generate email messages on the fly using comment data. Custom email
headers allow us to feed bogofilter any field we deem relevant. Training
is done from the Django admin, moderation with a custom moderation class
and the app is highly configurable.
usage
-----
- if you don't have a `custom comments
app <http://django-contrib-comments.readthedocs.org/en/latest/custom.html>`__,
make one
- in your custom comments app subclass your model from
bogofilter.models.BogofilterComment (it's a proxy model that will not
add any new fields)
- subclass your form from bogofilter.forms.BogofilterCommentForm
- `register <http://django-contrib-comments.readthedocs.org/en/latest/moderation.html>`__
bogofilter.moderation.BogofilterCommentModerator or a subclass of it
for the model that your comments are attached to. You can do this in
that app's models.py file with something like this (assuming the
target model is Entry):
.. code:: python
if Entry not in moderator._registry:
moderator.register(Entry, BogofilterCommentModerator)
- in admin.py you probably want to change the fields order in your
custom admin model. Use bogofilter.admin.bogo\_status as a field for
list\_display. Register your admin model subclassed from
bogofilter.admin.BogofilterCommentsAdmin like this:
.. code:: python
admin.site.unregister(BogofilterComment)
admin.site.register(MyComment, MyCommentAdmin)
- from the admin, train bogofilter with a batch of wanted (ham) and
unwanted (spam) comments. 100 of each is a good start. After this
filter by "Unsure" and mark those accordingly. Next filter by
'Mismatches'. The assumption is that your ham comments are public,
while the spam ones are not. Fix any conflict between bogofilter's
status and your public status by marking the comments as spam or ham.
- you can pass command line arguments to bogofilter through the
BOGOFILTER\_ARGS variable in settings.py:
.. code:: python
BOGOFILTER_ARGS = ['-o', '0.7'] # lower the spam_cutoff from the default 0.95
- if you have use bogofilter for more than one thing in the same
account, you'll want to specify a directory other than the default
~/.bogofilter:
.. code:: python
BOGOFILTER_ARGS = ['-d', './bogofilter_test_dir', '-o', '0.7']
tips
----
- some spam bots stay only a few seconds on page so they can be weeded
out based on that. You can get the 'time\_on\_page' field from the
form (it's a floating point timestamp), store it in the model and
return False from the 'allow' method of the moderator class if it's
less than a certain value (4 seconds should be enough to avoid false
negatives).
- for some reason, moderation signals might get lost and spam comments
with a .bogotype() of 'S' (spam) or a time on page lower than your
limit get through. You can deal with those with a periodic task that
deletes them. I have mine running every 5 minutes and any
notification related to new comments ignores those newer than that.
- regularly delete the spam comments after an interval long enough to
allow you to rescue incorrectly classified ham.
requirements
------------
- `Django <https://www.djangoproject.com/>`__
- `django-contrib-comments <https://github.com/django/django-contrib-comments>`__
- `bogofilter <http://bogofilter.sourceforge.net/>`__
testing
-------
.. code:: sh
python setup.py test
The test suite is shamelessly taken from django-contrib-comments and
converted to use the 'bogofilter' app wherever possible.
Tested with python-2.7.6, python-3.3.4, django-1.6.2,
django-contrib-comments-1.5 and bogofilter-1.2.4 .
credits
-------
- author: Stefan Talpalaru stefantalpalaru@yahoo.com
- homepage: https://github.com/stefantalpalaru/django-bogofilter
نحوه نصب
نصب پکیج whl django-bogofilter-0.1:
pip install django-bogofilter-0.1.whl
نصب پکیج tar.gz django-bogofilter-0.1:
pip install django-bogofilter-0.1.tar.gz