Fix mention user link

h/presenters/mention_json.py

@@ -1,14 +1,17 @@
 from typing import Any
 
+from pyramid.request import Request
+
 from h.models import Mention
-from h.util.user import format_userid
+from h.util.user import format_userid, get_user_url
 
 
 class MentionJSONPresenter:
     """Present a mention in the JSON format returned by API requests."""
 
-    def __init__(self, mention: Mention):
+    def __init__(self, mention: Mention, request: Request):
         self._mention = mention
+        self._request = request
 
     def asdict(self) -> dict[str, Any]:
         return {
@@ -18,5 +21,5 @@ def asdict(self) -> dict[str, Any]:
             ),
             "username": self._mention.user.username,
             "display_name": self._mention.user.display_name,
-            "link": self._mention.user.uri,
+            "link": get_user_url(self._mention.user, self._request),
         }

h/services/annotation_json.py

@@ -1,5 +1,7 @@
 from copy import deepcopy
 
+from pyramid.request import Request
+
 from h.models import Annotation, User
 from h.presenters import DocumentJSONPresenter
 from h.presenters.mention_json import MentionJSONPresenter
@@ -27,6 +29,7 @@ def __init__(  # noqa: PLR0913
         user_service: UserService,
         mention_service: MentionService,
         feature_service: FeatureService,
+        request: Request,
     ):
         """
         Instantiate the service.
@@ -36,13 +39,16 @@ def __init__(  # noqa: PLR0913
         :param flag_service: FlagService instance
         :param user_service: UserService instance
         :param mention_service: MentionService instance
+        :param feature_service: FeatureService instance
+        :param request: The current request
         """
         self._annotation_read_service = annotation_read_service
         self._links_service = links_service
         self._flag_service = flag_service
         self._user_service = user_service
         self._mention_service = mention_service
         self._feature_service = feature_service
+        self._request = request
 
     def present(self, annotation: Annotation):
         """
@@ -83,7 +89,7 @@ def present(self, annotation: Annotation):
         )
         if self._feature_service.enabled("at_mentions"):  # pragma: no cover
             model["mentions"] = [
-                MentionJSONPresenter(mention).asdict()
+                MentionJSONPresenter(mention, self._request).asdict()
                 for mention in annotation.mentions
             ]
 
@@ -201,4 +207,5 @@ def factory(_context, request):
         user_service=request.find_service(name="user"),
         mention_service=request.find_service(MentionService),
         feature_service=request.find_service(name="feature"),
+        request=request,
     )

h/services/mention.py

@@ -18,7 +18,7 @@
 class MentionService:
     """A service for managing user mentions."""
 
-    def __init__(self, session: Session, user_service: UserService):
+    def __init__(self, session: Session, user_service: UserService) -> None:
         self._session = session
         self._user_service = user_service
 
@@ -75,5 +75,6 @@ def _parse_userids(text: str) -> list[str]:
 def factory(_context, request) -> MentionService:
     """Return a MentionService instance for the passed context and request."""
     return MentionService(
-        session=request.db, user_service=request.find_service(name="user")
+        session=request.db,
+        user_service=request.find_service(name="user"),
     )

h/util/user.py

@@ -2,6 +2,8 @@
 
 import re
 
+from pyramid.request import Request
+
 from h.exceptions import InvalidUserId
 
 
@@ -23,3 +25,10 @@ def split_user(userid):
 
 def format_userid(username, authority):
     return f"acct:{username}@{authority}"
+
+
+def get_user_url(user, request: Request) -> str | None:
+    if user.authority == request.default_authority:
+        return request.route_url("activity.user_search", username=user.username)
+
+    return None

tests/unit/h/presenters/mention_json_test.py

@@ -6,24 +6,24 @@
 
 
 class TestMentionJSONPresenter:
-    def test_as_dict(self, user, annotation):
+    def test_as_dict(self, user, annotation, pyramid_request):
         mention = Mention(annotation=annotation, user=user, username=user.username)
 
-        data = MentionJSONPresenter(mention).asdict()
+        data = MentionJSONPresenter(mention, pyramid_request).asdict()
 
         assert data == {
             "userid": user.userid,
             "original_userid": user.userid,
             "username": user.username,
             "display_name": user.display_name,
-            "link": user.uri,
+            "link": f"http://example.com/users/{user.username}",
         }
 
-    def test_as_dict_with_different_username(self, user, annotation):
+    def test_as_dict_with_different_username(self, user, annotation, pyramid_request):
         new_username = "new_username"
         mention = Mention(annotation=annotation, user=user, username=new_username)
 
-        data = MentionJSONPresenter(mention).asdict()
+        data = MentionJSONPresenter(mention, pyramid_request).asdict()
 
         assert data["original_userid"] == format_userid(new_username, user.authority)
 
@@ -34,3 +34,7 @@ def user(self, factories):
     @pytest.fixture
     def annotation(self, factories):
         return factories.Annotation.build()
+
+    @pytest.fixture(autouse=True)
+    def routes(self, pyramid_config):
+        pyramid_config.add_route("activity.user_search", "/users/{username}")

tests/unit/h/services/annotation_json_test.py

@@ -214,6 +214,7 @@ def service(
         user_service,
         mention_service,
         feature_service,
+        pyramid_request,
     ):
         return AnnotationJSONService(
             annotation_read_service=annotation_read_service,
@@ -222,6 +223,7 @@ def service(
             user_service=user_service,
             mention_service=mention_service,
             feature_service=feature_service,
+            request=pyramid_request,
         )
 
     @pytest.fixture
@@ -272,6 +274,7 @@ def test_it(
             user_service=user_service,
             mention_service=mention_service,
             feature_service=feature_service,
+            request=pyramid_request,
         )
         assert service == AnnotationJSONService.return_value
 

tests/unit/h/util/user_test.py

@@ -12,3 +12,23 @@ def test_split_user():
 def test_split_user_no_match():
     with pytest.raises(InvalidUserId):
         user_util.split_user("donkeys")
+
+
+class TestGetUserURL:
+    def test_it(self, pyramid_request, user):
+        assert (
+            user_util.get_user_url(user, pyramid_request)
+            == f"http://example.com/users/{user.username}"
+        )
+
+    def test_it_returns_none_if_authority_does_not_match(self, pyramid_request, user):
+        pyramid_request.default_authority = "foo.org"
+        assert user_util.get_user_url(user, pyramid_request) is None
+
+    @pytest.fixture
+    def user(self, factories):
+        return factories.User.build()
+
+    @pytest.fixture(autouse=True)
+    def routes(self, pyramid_config):
+        pyramid_config.add_route("activity.user_search", "/users/{username}")