django-wellknown

Django application to provide easy administration of site-meta URIs. Includes robots.txt and crossdomain.xml.

http://tools.ietf.org/html/draft-nottingham-site-meta-03 http://tools.ietf.org/html/draft-hammer-hostmeta-04

Requirements

python >= 2.5

django >= 1.0

django-robots (optional)

python-xrd

iso8601

Installation

Be sure to add wellknown to INSTALLED_APPS in settings.py. Additionally, add the following entry to urls.py:

urls(r'^', include('wellknown.urls')),

Run ./manage.py syncdb

Usage

Register resources

import wellknown
wellknown.register('host-meta', ...)

The first argument is the path that will be exposed for the resource. A path of host-meta will map to:

http://example.com/.well-known/host-meta

At least one of the following arguments is required:

• content: a string or unicode representation of the resource, cached on startup
• template: the path to a template that will be rendered for the resource, rendered and cached on startup
• handler: a handler method that will be used to render the resource, invoked on each request

Handler methods must have the following signature and return a string or unicode object:

def handler(request, *args, **kwargs):
    pass

The register method takes one optional parameter, content_type. This is the content type that will be used to return the rendered resource. The following rules are used to determine the content_type to use:

1. if a content_type parameter was passed to register, use it
2. attempt to infer content_type from the path using the mimetypes package
3. use text/plain if no content_type can be guessed

Model resources

Resources may be stored in the database to make it easy for non-technical users to edit. The following fields are available on a Resource:

• path: the path that maps to the resource
• content: the content that will be served when the resource is requested
• content_type: the content_type with which the content will be returned, defaults to text/plain

When a resource is saved, it is updated in the cache.

host-meta

A default host-meta file is automatically handled by wellknown. To register an entry in host-meta:

wellknown.hostmeta.links.append(Link(rel=..., ...))

Refer to the python-xrd documentation for instructions on creating XRD Link elements.

The Host element of host-meta is inferred from the domain of the current Django Site object. To override the hosts, edit settings.py:

WELLKNOWN_HOSTMETA_SITES = ('example.com', 'www.example.com')

django-robots

wellknown will defer to django-robots if it is installed. To use django-robots to render robots.txt, add robots to INSTALLED_APPS in settings.py and wellknown will take care of the rest.