Add contact account to InstanceView

Signed-off-by: marcin mikołajczak <git@mkljczk.pl>

changelog.d/instance-contact-account.add

@@ -0,0 +1 @@
+Add contact account to InstanceView

config/description.exs

@@ -566,6 +566,12 @@
           "Cool instance"
         ]
       },
+      %{
+        key: :contact_username,
+        type: :string,
+        description: "Instance owner username",
+        suggestions: ["admin"]
+      },
       %{
         key: :limit,
         type: :integer,

lib/pleroma/web/mastodon_api/views/instance_view.ex

@@ -30,6 +30,7 @@ def render("show.json", _) do
       languages: Keyword.get(instance, :languages, ["en"]),
       registrations: Keyword.get(instance, :registrations_open),
       approval_required: Keyword.get(instance, :account_approval_required),
+      contact_account: contact_account(Keyword.get(instance, :contact_username)),
       # Extra (not present in Mastodon):
       max_toot_chars: Keyword.get(instance, :limit),
       max_media_attachments: Keyword.get(instance, :max_media_attachments),
@@ -141,4 +142,20 @@ def fields_limits do
       value_length: Config.get([:instance, :account_field_value_length])
     }
   end
+
+  defp contact_account(nil), do: nil
+
+  defp contact_account("@" <> username) do
+    contact_account(username)
+  end
+
+  defp contact_account(username) do
+    user = Pleroma.User.get_cached_by_nickname(username)
+
+    if user do
+      Pleroma.Web.MastodonAPI.AccountView.render("show.json", %{user: user, for: nil})
+    else
+      nil
+    end
+  end
 end

test/pleroma/web/mastodon_api/controllers/instance_controller_test.exs

@@ -106,4 +106,16 @@ test "instance languages", %{conn: conn} do
              |> get("/api/v1/instance")
              |> json_response_and_validate_schema(200)
   end
+
+  test "get instance contact information", %{conn: conn} do
+    user = insert(:user, %{local: true})
+
+    clear_config([:instance, :contact_username], user.nickname)
+
+    conn = get(conn, "/api/v1/instance")
+
+    assert result = json_response_and_validate_schema(conn, 200)
+
+    assert result["contact_account"]["id"] == user.id
+  end
 end