Make JSON webfinger support webfinger profile url

docs/usage.rst

@@ -111,11 +111,14 @@ Some settings need to be set in Django settings. An example is below:
 
     FEDERATION = {
         "base_url": "https://myserver.domain.tld,
-        "profile_id_function": "myproject.utils.get_profile_id_by_handle",
+        "get_profile_function": "myproject.utils.get_profile_by_handle",
     }
 
 * ``base_url`` is the base URL of the server, ie protocol://domain.tld.
-* ``profile_id_function`` should be the full path to a function that given a handle will return the Diaspora URI format profile ID.
+* ``profile_id_function`` should be the full path to a function that given a handle will return a dictionary with information that will be used to generate the webfinger document. The dict should contain the following elements:
+
+  * ``id`` - Diaspora URI format ID.
+  * ``profile_path`` - profile path for generating an absolute URL to the profile page of the user.
 
 Protocols
 ---------

federation/hostmeta/django/generators.py

@@ -19,7 +19,7 @@ def get_configuration():
     }
     configuration.update(settings.FEDERATION)
     if not all([
-        "profile_id_function" in configuration,
+        "get_profile_function" in configuration,
         "base_url" in configuration,
         "hcard_path" in configuration,
     ]):
@@ -27,12 +27,12 @@ def get_configuration():
     return configuration
 
 
-def get_profile_id_func():
+def get_profile_func():
     """
-    Import the function to get profile ID by handle.
+    Import the function to get profile by handle.
     """
     config = get_configuration()
-    profile_func_path = config.get("profile_id_function")
+    profile_func_path = config.get("get_profile_function")
     module_path, func_name = profile_func_path.rsplit(".", 1)
     module = importlib.import_module(module_path)
     profile_func = getattr(module, func_name)
@@ -50,18 +50,19 @@ def rfc3033_webfinger_view(request, *args, **kwargs):
         return HttpResponseBadRequest("Invalid resource")
 
     handle = resource.replace("acct:", "")
-    profile_id_func = get_profile_id_func()
+    profile_func = get_profile_func()
 
     try:
-        profile_id = profile_id_func(handle)
+        profile = profile_func(handle)
     except Exception as exc:
-        logger.warning("rfc3033_webfinger_view - Failed to get profile ID by handle %s: %s", handle, exc)
+        logger.warning("rfc3033_webfinger_view - Failed to get profile by handle %s: %s", handle, exc)
         return HttpResponseNotFound()
 
     config = get_configuration()
     webfinger = RFC3033Webfinger(
-        id=profile_id,
+        id=profile.get('id'),
         base_url=config.get('base_url'),
+        profile_path=profile.get('profile_path'),
         hcard_path=config.get('hcard_path'),
     )
 

federation/hostmeta/generators.py

@@ -287,13 +287,15 @@ class RFC3033Webfinger:
 
     :param id: Diaspora ID in URI format
     :param base_url: The base URL of the server (protocol://domain.tld)
+    :param profile_path: Profile path for the user (for example `/profile/johndoe/`)
     :param hcard_path: (Optional) hCard path, defaults to ``/hcard/users/``.
     :returns: dict
     """
-    def __init__(self, id, base_url, hcard_path="/hcard/users/"):
+    def __init__(self, id, base_url, profile_path, hcard_path="/hcard/users/"):
         self.handle, self.guid = parse_profile_diaspora_id(id)
         self.base_url = base_url
         self.hcard_path = hcard_path
+        self.profile_path = profile_path
 
     def render(self):
         return {
@@ -309,5 +311,10 @@ class RFC3033Webfinger:
                     "type": "text/html",
                     "href": self.base_url,
                 },
+                {
+                    "rel": "http://webfinger.net/rel/profile-page",
+                    "type": "text/html",
+                    "href": "%s%s" % (self.base_url, self.profile_path),
+                },
             ],
         }

federation/tests/hostmeta/django/settings.py

@@ -4,5 +4,5 @@ INSTALLED_APPS = tuple()
 
 FEDERATION = {
     "base_url": "https://example.com",
-    "profile_id_function": "federation.tests.hostmeta.django.utils.get_profile_id_by_handle",
+    "get_profile_function": "federation.tests.hostmeta.django.utils.get_profile_by_handle",
 }

federation/tests/hostmeta/django/test_generators.py

@@ -4,11 +4,11 @@ from unittest.mock import patch, Mock
 from django.test import RequestFactory
 
 from federation.hostmeta.django import rfc3033_webfinger_view
-from federation.hostmeta.django.generators import get_profile_id_func
+from federation.hostmeta.django.generators import get_profile_func
 
 
-def test_get_profile_id_func():
-    func = get_profile_id_func()
+def test_get_profile_func():
+    func = get_profile_func()
     assert callable(func)
 
 
@@ -23,7 +23,7 @@ class TestRFC3033WebfingerView:
         response = rfc3033_webfinger_view(request)
         assert response.status_code == 400
 
-    @patch("federation.hostmeta.django.generators.get_profile_id_func")
+    @patch("federation.hostmeta.django.generators.get_profile_func")
     def test_unknown_handle_returns_not_found(self, mock_get_func):
         mock_get_func.return_value = Mock(side_effect=Exception)
         request = RequestFactory().get("/.well-known/webfinger?resource=acct:foobar@domain.tld")
@@ -48,5 +48,10 @@ class TestRFC3033WebfingerView:
                     "type": "text/html",
                     "href": "https://example.com",
                 },
+                {
+                    "rel": "http://webfinger.net/rel/profile-page",
+                    "type": "text/html",
+                    "href": "https://example.com/profile/1234/",
+                },
             ],
         }

federation/tests/hostmeta/django/utils.py

@@ -1,5 +1,8 @@
 from federation.utils.diaspora import generate_diaspora_profile_id
 
 
-def get_profile_id_by_handle(handle):
-    return generate_diaspora_profile_id(handle, "1234")
+def get_profile_by_handle(handle):
+    return {
+        "id": generate_diaspora_profile_id(handle, "1234"),
+        "profile_path": "/profile/1234/",
+    }

federation/tests/hostmeta/test_generators.py

@@ -182,6 +182,7 @@ def test_rfc3033_webfinger():
     webfinger = RFC3033Webfinger(
         "diaspora://foobar@example.com/profile/1234",
         "https://example.com",
+        profile_path="/profile/1234/",
     ).render()
     assert webfinger == {
         "subject": "acct:foobar@example.com",
@@ -196,5 +197,10 @@ def test_rfc3033_webfinger():
                 "type": "text/html",
                 "href": "https://example.com",
             },
+            {
+                "rel": "http://webfinger.net/rel/profile-page",
+                "type": "text/html",
+                "href": "https://example.com/profile/1234/",
+            },
         ],
     }