Slight cleanup.

lib/pleroma/web/oauth/app.ex

@@ -0,0 +1,29 @@
+defmodule Pleroma.Web.OAuth.App do
+  use Ecto.Schema
+  import Ecto.{Changeset}
+
+  schema "apps" do
+    field :client_name, :string
+    field :redirect_uris, :string
+    field :scopes, :string
+    field :website, :string
+    field :client_id, :string
+    field :client_secret, :string
+
+    timestamps()
+  end
+
+  def register_changeset(struct, params \\ %{}) do
+    changeset = struct
+    |> cast(params, [:client_name, :redirect_uris, :scopes, :website])
+    |> validate_required([:client_name, :redirect_uris, :scopes])
+
+    if changeset.valid? do
+      changeset
+      |> put_change(:client_id, :crypto.strong_rand_bytes(32) |> Base.url_encode64)
+      |> put_change(:client_secret, :crypto.strong_rand_bytes(32) |> Base.url_encode64)
+    else
+      changeset
+    end
+  end
+end