Added view for host-meta, and a test for it, which passes.

Moved views.py into views/activitypub.py, so we can have a
separate file for the host-meta view. views/activitypub.py
should be split up further at some point.

django_kepi/urls.py

@@ -12,5 +12,10 @@ urlpatterns = [
         path('users/<str:username>/followers', django_kepi.views.FollowersView.as_view()),
         path('users/<str:username>/following', django_kepi.views.FollowingView.as_view()),
         path('sharedInbox', django_kepi.views.InboxView.as_view()),
+
+        # XXX We might want to split out the patterns that HAVE to be
+        # at the root.
+
+        path('.well-known/host-meta', django_kepi.views.HostMeta.as_view()),
         ]
 

django_kepi/views/__init__.py

@@ -0,0 +1,17 @@
+from .activitypub import KepiView, ThingView, ActorView, \
+        FollowersView, FollowingView, \
+        AllUsersView, \
+        UserCollectionView, \
+        InboxView, OutboxView
+
+from .host_meta import HostMeta
+
+__all__ = [
+        'KepiView', 'ThingView', 'ActorView',
+        'FollowersView', 'FollowingView',
+        'AllUsersView',
+        'UserCollectionView',
+        'InboxView', 'OutboxView',
+
+        'HostMeta',
+        ]

django_kepi/views/host_meta.py

@@ -0,0 +1,25 @@
+import django.views
+from django.shortcuts import render
+import logging
+
+logger = logging.Logger('django_kepi')
+
+class HostMeta(django.views.View):
+
+    def get(self, request):
+
+        logger.info('Returning host-meta.xml')
+
+        context = {
+                'hostname': request.get_host(),
+            }
+
+        result = render(
+                request=request,
+                template_name='host-meta.xml',
+                context=context,
+                content_type='application/xrd+xml',
+                )
+
+        return result
+

tests/test_host_meta.py

@@ -0,0 +1,35 @@
+from django.conf import settings
+from django.test import TestCase, Client
+import logging
+import json
+
+HOST_META_URL = 'https://altair.example.com/.well-known/host-meta'
+HOST_META_MIME_TYPE = 'application/xrd+xml'
+
+logger = logging.getLogger(name='django_kepi')
+
+class TestHostMeta(TestCase):
+
+    def test_host_meta(self):
+
+        logger.debug('Get host-meta from %s',
+                HOST_META_URL)
+
+        settings.ALLOWED_HOSTS = [
+                'altair.example.com',
+                'testserver',
+                ]
+
+        client = Client()
+        response = client.get(HOST_META_URL,
+                HTTP_ACCEPT = HOST_META_MIME_TYPE,
+                )
+
+        self.assertEqual(response.status_code, 200)
+
+        self.assertEqual(response['Content-Type'],
+                HOST_META_MIME_TYPE)
+        
+        self.assertIn(
+                "/.well-known/webfinger?resource={uri}",
+                str(response.content, encoding='UTF-8'))