From 731164d0057f35991bbede48967b7f30e285b71b Mon Sep 17 00:00:00 2001
From: Emelia Smith <ThisIsMissEm@users.noreply.github.com>
Date: Wed, 3 Jan 2024 22:17:59 +0100
Subject: [PATCH] Feature: Implement FEP-2677 allowing discovery of the
 instance application actor

---
 app/serializers/node_info/discovery_serializer.rb |  5 ++++-
 spec/requests/well_known/node_info_spec.rb        |  4 ++++
 spec/routing/well_known_routes_spec.rb            | 12 ++++++++++++
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/app/serializers/node_info/discovery_serializer.rb b/app/serializers/node_info/discovery_serializer.rb
index 07ab2a6eee3..bb9e7385229 100644
--- a/app/serializers/node_info/discovery_serializer.rb
+++ b/app/serializers/node_info/discovery_serializer.rb
@@ -6,6 +6,9 @@ class NodeInfo::DiscoverySerializer < ActiveModel::Serializer
   attribute :links
 
   def links
-    [{ rel: 'http://nodeinfo.diaspora.software/ns/schema/2.0', href: nodeinfo_schema_url }]
+    [
+      { rel: 'http://nodeinfo.diaspora.software/ns/schema/2.0', href: nodeinfo_schema_url },
+      { rel: 'https://www.w3.org/ns/activitystreams#Application', href: instance_actor_url },
+    ]
   end
 end
diff --git a/spec/requests/well_known/node_info_spec.rb b/spec/requests/well_known/node_info_spec.rb
index 0934b0fde6f..c62d7ac4677 100644
--- a/spec/requests/well_known/node_info_spec.rb
+++ b/spec/requests/well_known/node_info_spec.rb
@@ -19,6 +19,10 @@ describe 'The well-known node-info endpoints' do
             include(
               rel: 'http://nodeinfo.diaspora.software/ns/schema/2.0',
               href: include('nodeinfo/2.0')
+            ),
+            include(
+              rel: 'https://www.w3.org/ns/activitystreams#Application',
+              href: end_with('/actor')
             )
           )
         )
diff --git a/spec/routing/well_known_routes_spec.rb b/spec/routing/well_known_routes_spec.rb
index 8cf08c13c12..63d0867bc9d 100644
--- a/spec/routing/well_known_routes_spec.rb
+++ b/spec/routing/well_known_routes_spec.rb
@@ -16,4 +16,16 @@ describe 'Well Known routes' do
         .to route_to('well_known/webfinger#show')
     end
   end
+
+  describe 'the nodeinfo routes' do
+    it 'routes to discovery (index) route' do
+      expect(get('/.well-known/nodeinfo'))
+        .to route_to('well_known/node_info#index', format: 'json')
+    end
+
+    it 'routes to the show route' do
+      expect(get('/nodeinfo/2.0'))
+        .to route_to('well_known/node_info#show')
+    end
+  end
 end