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Django application for adding BrowserID support.
Python JavaScript
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This is django-browserid, a drop-in Django application that adds support for BrowserID.


To use django-browserid, add it to INSTALLED_APPS in

    # ...
    'django_browserid',  # Load after auth to monkey-patch it.
    # ...

and add django_browserid.auth.BrowserIDBackend to AUTHENTICATION_BACKENDS in

    # ...
    # ...

Edit your file and add the following:

urlpatterns = patterns('',
    # ...
    (r'^browserid/', include('django_browserid.urls')),
    # ...

You can also set the following optional in (they have sensible defaults):

# URL of a BrowserID verification service.

# CA cert file for validating SSL certificate

# Create user accounts automatically if no user is found.

# Path to redirect to on successful login.

# Path to redirect to on unsuccessful login attempt.

Somewhere in one of your templates, you'll need to create a link and a form with a single hidden input element, which you'll use to submit the BrowserID assertion to the server. If you want to use django_browserid.forms.BrowserIDForm, you could use something like the following template snippet:

{% if not user.is_authenticated %}
<a id="browserid" href="{% url gracefully_degrade %}">Sign In</a>
<form method="POST" action="{% url browserid_verify %}">
   {{ browserid_form.as_p }}
{% endif %}

If you do this, it is further recommended that you add django_browserid.context_processors.browserid_form to TEMPLATE_CONTEXT_PROCESSORS; this will create the browserid_form variable automatically in RequestContext instances when needed. That is, in

    # ...
    # ...

Finally, you'll need some Javascript to handle the onclick event. If you use django_browserid.forms.BrowserIDForm, you can use the javascript in static/browserid.js. Otherwise, you can use it as a basic example:

$('#browserid').bind('click', function(e) {
  navigator.getVerifiedEmail(function(assertion) {
    if (assertion) {
      var $e = $('#id_assertion');

Creating User Accounts

django-browserid will automatically create a user account for new users if the setting BROWSERID_CREATE_USER is set to True in The user account will be created with the verified email returned from the BrowserID verification service, and a URL safe base64 encoded SHA1 of the email with the padding removed as the username.

If you do not wish to automatically create user accounts, you may manually verify a BrowserID assertion with something like the following:

from django_browserid.auth import get_audience, verify
from django_browserid.forms import BrowserIDForm

def myview(request):
   # ...
   if request.method == 'POST':
       form = BrowserIDForm(data=request.POST)
       if not form.is_valid():
           # do something
       host = request.get_host()
       if ':' in host:
           host, port = host.split(':')
           port = '80'
       audience = get_audience(host, port)
       result = verify(form.cleaned_data['assertion'], audience)
       # ...

result will be False if the assertion failed, or a dictionary similar to the following:

   u'audience': u'',
   u'email': u'',
   u'issuer': u'',
   u'status': u'okay',
   u'valid-until': 1311377222765

You are of course then free to store the email in the session and prompt the user to sign up using a chosen identifier as their username, or whatever else makes sense for your site.


This software is licensed under the New BSD License. For more information, read the file LICENSE.


django-browserid is a work in progress. Contributions are welcome. Feel free to fork and contribute!

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