From 6b8c5e12dfe759ac1286e81e72ad7f8727e01386 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?marcin=20miko=C5=82ajczak?= <git@mkljczk.pl>
Date: Thu, 26 Oct 2023 23:30:38 +0200
Subject: [PATCH] Add contact account to InstanceView
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Signed-off-by: marcin mikołajczak <git@mkljczk.pl>
---
 changelog.d/instance-contact-account.add        |  1 +
 config/description.exs                          |  6 ++++++
 .../web/mastodon_api/views/instance_view.ex     | 17 +++++++++++++++++
 .../controllers/instance_controller_test.exs    | 12 ++++++++++++
 4 files changed, 36 insertions(+)
 create mode 100644 changelog.d/instance-contact-account.add

diff --git a/changelog.d/instance-contact-account.add b/changelog.d/instance-contact-account.add
new file mode 100644
index 000000000..e119446d2
--- /dev/null
+++ b/changelog.d/instance-contact-account.add
@@ -0,0 +1 @@
+Add contact account to InstanceView
\ No newline at end of file
diff --git a/config/description.exs b/config/description.exs
index d18649ae8..239ba7cb0 100644
--- a/config/description.exs
+++ b/config/description.exs
@@ -566,6 +566,12 @@
           "Cool instance"
         ]
       },
+      %{
+        key: :contact_username,
+        type: :string,
+        description: "Instance owner username",
+        suggestions: ["admin"]
+      },
       %{
         key: :limit,
         type: :integer,
diff --git a/lib/pleroma/web/mastodon_api/views/instance_view.ex b/lib/pleroma/web/mastodon_api/views/instance_view.ex
index 1b01d7371..06df63b0f 100644
--- a/lib/pleroma/web/mastodon_api/views/instance_view.ex
+++ b/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
diff --git a/test/pleroma/web/mastodon_api/controllers/instance_controller_test.exs b/test/pleroma/web/mastodon_api/controllers/instance_controller_test.exs
index a556ef6a8..cfa86468f 100644
--- a/test/pleroma/web/mastodon_api/controllers/instance_controller_test.exs
+++ b/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