From 602e5a378057f3cd5ca355fd3ed2a17fcc147c72 Mon Sep 17 00:00:00 2001
From: Andrew Godwin
Date: Sat, 10 Dec 2022 13:24:49 -0700
Subject: Add system actor and shared inbox

---
 .gitignore                            | 1 +
 takahe/urls.py                        | 2 ++
 tests/users/views/test_activitypub.py | 2 ++
 users/models/identity.py              | 4 ++++
 users/models/system_actor.py          | 3 +++
 users/views/activitypub.py            | 2 +-
 6 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index bc256e2..fd7ddf6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,4 +13,5 @@
 /media/
 /static-collected
 __pycache__/
+api-test.*
 notes.md
diff --git a/takahe/urls.py b/takahe/urls.py
index 98d1cd5..762e091 100644
--- a/takahe/urls.py
+++ b/takahe/urls.py
@@ -199,6 +199,8 @@ urlpatterns = [
     path(".well-known/nodeinfo", activitypub.NodeInfo.as_view()),
     path("nodeinfo/2.0/", activitypub.NodeInfo2.as_view()),
     path("actor/", activitypub.SystemActorView.as_view()),
+    path("actor/inbox/", activitypub.Inbox.as_view()),
+    path("inbox/", activitypub.Inbox.as_view(), name="shared_inbox"),
     # Stator
     path(".stator/", stator.RequestRunner.as_view()),
     # Django admin
diff --git a/tests/users/views/test_activitypub.py b/tests/users/views/test_activitypub.py
index c6e7faf..c15e232 100644
--- a/tests/users/views/test_activitypub.py
+++ b/tests/users/views/test_activitypub.py
@@ -14,6 +14,7 @@ def test_webfinger_actor(client, identity):
     # Fetch their actor
     data = client.get("/@test@example.com/", HTTP_ACCEPT="application/ld+json").json()
     assert data["id"] == "https://example.com/@test@example.com/"
+    assert data["endpoints"]["sharedInbox"] == "https://example.com/inbox/"
 
 
 @pytest.mark.django_db
@@ -31,6 +32,7 @@ def test_webfinger_system_actor(client):
     data = client.get("/actor/", HTTP_ACCEPT="application/ld+json").json()
     assert data["id"] == "https://example.com/actor/"
     assert data["inbox"] == "https://example.com/actor/inbox/"
+    assert data["endpoints"]["sharedInbox"] == "https://example.com/inbox/"
 
 
 @pytest.mark.django_db
diff --git a/users/models/identity.py b/users/models/identity.py
index 21ac0fd..fe85d41 100644
--- a/users/models/identity.py
+++ b/users/models/identity.py
@@ -296,6 +296,10 @@ class Identity(StatorModel):
                 "mediaType": media_type_from_filename(self.image.name),
                 "url": self.image.url,
             }
+        if self.local:
+            response["endpoints"] = {
+                "sharedInbox": f"https://{self.domain.uri_domain}/inbox/",
+            }
         return response
 
     ### ActivityPub (inbound) ###
diff --git a/users/models/system_actor.py b/users/models/system_actor.py
index c4319b9..fb5a9e1 100644
--- a/users/models/system_actor.py
+++ b/users/models/system_actor.py
@@ -43,6 +43,9 @@ class SystemActor:
             "id": self.actor_uri,
             "type": "Application",
             "inbox": self.actor_uri + "inbox/",
+            "endpoints": {
+                "sharedInbox": f"https://{settings.MAIN_DOMAIN}/inbox/",
+            },
             "preferredUsername": self.username,
             "url": self.profile_uri,
             "as:manuallyApprovesFollowers": True,
diff --git a/users/views/activitypub.py b/users/views/activitypub.py
index 93a6eae..b44edfb 100644
--- a/users/views/activitypub.py
+++ b/users/views/activitypub.py
@@ -138,7 +138,7 @@ class Inbox(View):
     AP Inbox endpoint
     """
 
-    def post(self, request, handle):
+    def post(self, request, handle=None):
         # Load the LD
         document = canonicalise(json.loads(request.body), include_security=True)
         # Find the Identity by the actor on the incoming item
-- 
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