Django Firstclass

Firstclass is a proxy email backend for Django that allows for global email transformations such as automatically creating a plain text version of html emails or automatically creating an online version of the email that can be read in browser.

Install

pip install django-firstclass

• Add 'firstclass' to INSTALLED_APPS
• Add url(r'^email/', include('firstclass.urls')) to your urlconf.
• Set EMAIL_BACKEND to 'firstclass.backends.ProxyBackend'
• Syncdb

Settings

FIRSTCLASS_EMAIL_BACKEND

The email backend to send processed emails to after they've gone through the middleware.

Default

FIRSTCLASS_EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'

FIRSTCLASS_MIDDLEWARE

Firstclass middleware works just like Django middleware. Firstclass applies middleware in the order it's defined in FIRSTCLASS_MIDDLEWARE, top-down. You can even create your own middleware. See: Custom Middleware

Default

FIRSTCLASS_MIDDLEWARE = (
    'firstclass.middleware.online.ViewOnlineMiddleware',
    'firstclass.middleware.alternative.MultiAlternativesMiddleware',
    'firstclass.middleware.text.PlainTextMiddleware',
)

Available Middleware

PlainTextMiddleware

firstclass.middleware.text.PlainTextMiddleware

Settings

FIRSTCLASS_PLAINTEXT_RULES

A dictionary of rules for converting html to plain text. Keys should be a qualified selector for BeautifulSoup's findAll. Values can either be a formatting string or a function that accepts one argument, attrs. All attributes found on the element can be used for formatting or will be passed to your function in attrs.

Default

FIRSTCLASS_PLAINTEXT_RULES = {
    'a': '(%(text)s) %(href)s',
    'img': '%(title)s: %(src)s',
}

MultiAlternativesMiddleware

firstclass.middleware.alternative.MultiAlternativesMiddleware

Coerces email to EmailMultiAlternatives so that a multiple versions of the email can be added.

ViewOnlineMiddleware

firstclass.middleware.online.ViewOnlineMiddleware

Saves all emails and adds a link to the email body so that they can be viewed online in a web browser. Ideally this middleware should come before the PlainTextMiddlewware so that the link that is added is converted to plain text.

ViewOnlineMiddleware uses the template firstclass/view_online_wrap.html to append the link to the bottom of the email. You can override this by providing your own in your templates directory.

Settings

FIRSTCLASS_VIEWONLINE_AUTH

If this is True the user will need to be logged in to view email. The user's email would also need to be one of the original recipients of the email.

Default

FIRSTCLASS_VIEWONLINE_AUTH = False

Custom Middleware

Defining custom middleware for Firstclass is simple. Middleware should be a single Python class that defines process_message.

process_message

process_message(self, message)

message is an EmailMessage or an EmailMessage like object. process_message should return message or None. If it returns None the email will be dropped.

Views

view_message_online

firstclass.views.view_message_online(request, key, template='firstclass/message.html')

This view is used by the ViewOnlineMiddleware middleware. It's template is located at firstclass/message.html. You can override this by providing your own in your templates directory. The render context contains message which is Message model instance.