django-email-extras 0.1.13

Provides the ability to send PGP encrypted and multipart emails using the Django templating system
django-email-extras is a Django reusable app providing the ability to send PGP encrypted and multipart emails using the Django templating system. These features can be used together or separately. When configured to send PGP encrypted email, the ability for Admin users to manage PGP keys is also provided.

Installation

Checkout the source and run python setup.py install. You can then add email_extras to your INSTALLED_APPS.

How It Works

There are two functions for sending email in the email_extras.utils module:

 * send_mail
 * send_mail_template

The former mimics the signature of django.core.mail.send_mail while the latter provides the ability to send multipart emails using the Django templating system. If configured correctly, both these functions will PGP encrypt emails as described below.

Sending PGP encrypted email

PGP explanation

Using python-gnupg, two models are defined in email_extras.models - Key and Address which represent a PGP key and an email address for a successfully import key. These models exist purely for the sake of importing keys and removing keys for a particular address via the Django Admin. When adding a key, the key is imported into the key ring on the server and the instance of the Key model is not saved. The email address for the key is also extracted and saved as an Address instance. The Address model is then used when sending email to check for an existing key to determine whether an email should be encrypted. When an Address is deleted via the Django Admin, the key is removed from the key ring on the server.

Sending multipart email with the Django templating system

As mentioned above, the following function is provided in the email_extras.utils module:

send_mail_template(subject, template, addr_from, addr_to, fail_silently=False, attachments=None, context=None)

The arguments that differ from django.core.mail.send_mail are template and context. The template argument is simply the name of the template to be used for rendering the email contents. A template consists of both a HTML file and a TXT file each responsible for their respective versions of the email and should be stored in the email_extras directory where your templates are stored, therefore if the name contact_form was given for the template argument, the two template files for the email would be:

templates/email_extras/contact_form.html templates/email_extras/contact_form.txt

The context argument is simply a dictionary that is used to populate the email templates, much like a normal request context would be used for a regular Django template.

Configuration

There are two settings you can configure in your project's settings module:

 * EMAIL_EXTRAS_USE_GNUPG - Boolean that controls whether the PGP encryption features are used. Defaults to True if EMAIL_EXTRAS_GNUPG_HOME is specified, otherwise False.
 * EMAIL_EXTRAS_GNUPG_HOME - String representing a custom location for the GNUPG keyring.

last updated on:
March 25th, 2012, 13:15 GMT
price:
FREE!
developed by:
Stephen McDonald
homepage:
bitbucket.org
license type:
Other/Proprietary License
category:
ROOT \ Internet \ Django Plugins

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