django-janitor allows you to use bleach to clean HTML stored in a Model's field.
django-janitor allows you to use bleach to clean HTML stored in a Model’s field.
- You don’t need to edit an existing app (django-janitor listens for a Models’ pre_save signal)
- Allowed HTML tags, attributes, and css are specified in a whitelist
- Whitelists are managed in Django’s Admin
- There are (sensible) default whitelists included
- Works with Bleach 1.0.4
To install the most recent release:
pip install django-janitor
To install from the current repository:
pip intall hg+https://bitbucket.org/bkmontgomery/django-janitor/
Browse to the Janitor app in Django’s Admin, and create a new Field sanitizer. Then select the Model and specify the fieldname which should be cleaned. After you set up the whitelists for Tags, Attributes, etc, save the Field sanitizer.
Then, when you save the Model to which the Field Sanitizer is associated, the content in the specified field will be cleaned using bleach.
Here’s a Screenshot:
There are a few managment commands avaialable to make it easier to use django-janitor. The first is clean_all which will look at all of the models that have a related Field Sanitizer, calling the models’ save method to trigger the pre_save signal (which forces the fields to be cleaned):
python manage.py clean_all
The second management command is clean_model, which works in a similar fashion, but allows you to specify an app and a model:
python manage.py clean_model myapp.MyModel
Finally, list_html_elements and list_html_elements_for_model exist to help you discover what HTML elements are being used in existing content. While these commands do require that a FieldSanitizer be configured for existing Models, they may be used to help you decide which tags to include in a whitelist.
You should run these commands before using clean_all or clean_model to see what sort of data exists before it’s cleaned:
python manage.py list_html_elements
python manage.py list_html_elements_for_model myapp.MyModel
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