a Django-based indieweb.org site https://00dani.me/
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from django.http import HttpResponseBadRequest, HttpResponseNotFound
from django.http import JsonResponse
from users.models import User
from django.shortcuts import get_object_or_404
from urllib.parse import urlparse, urljoin
from lemoncurry.utils import origin
AVATAR = 'http://webfinger.net/rel/avatar'
PROFILE_PAGE = 'http://webfinger.net/rel/profile-page'
def webfinger(request):
if 'resource' not in request.GET:
return HttpResponseBadRequest('resource parameter missing')
try:
resource = urlparse(request.GET['resource'])
except ValueError:
return HttpResponseBadRequest('resource parameter malformed')
if resource.scheme in ('mailto', 'acct', 'xmpp'):
user = get_object_or_404(User, email=resource.path)
elif resource.scheme in ('http', 'https'):
user = get_object_or_404(User, pk=1)
else:
return HttpResponseNotFound('resource not found on this server')
base = origin(request)
def link(rel, href, type):
return {'rel': rel, 'href': urljoin(base, href), 'type': type}
key_links = tuple(link(
rel='pgpkey',
href=key.file.url,
type='application/pgp-keys',
) for key in user.keys.all())
info = {
'subject': 'acct:' + user.email,
'aliases': (
urljoin(base, user.url),
'mailto:' + user.email,
'xmpp:' + user.xmpp,
),
'links': (
link(rel=AVATAR, href=user.avatar.url, type='image/png'),
link(rel=PROFILE_PAGE, href=user.url, type='text/html'),
) + key_links,
}
return JsonResponse(info, content_type='application/jrd+json')