move key generation functions into Pleroma.Keys module

lib/pleroma/web/web_finger/web_finger.ex

@@ -8,7 +8,6 @@ defmodule Pleroma.Web.WebFinger do
   alias Pleroma.User
   alias Pleroma.Web
   alias Pleroma.Web.Federator.Publisher
-  alias Pleroma.Web.Salmon
   alias Pleroma.Web.XML
   alias Pleroma.XmlBuilder
   require Jason
@@ -61,7 +60,7 @@ defmodule Pleroma.Web.WebFinger do
   end
 
   def represent_user(user, "JSON") do
-    {:ok, user} = ensure_keys_present(user)
+    {:ok, user} = User.ensure_keys_present(user)
 
     %{
       "subject" => "acct:#{user.nickname}@#{Pleroma.Web.Endpoint.host()}",
@@ -71,7 +70,7 @@ defmodule Pleroma.Web.WebFinger do
   end
 
   def represent_user(user, "XML") do
-    {:ok, user} = ensure_keys_present(user)
+    {:ok, user} = User.ensure_keys_present(user)
 
     links =
       gather_links(user)
@@ -88,27 +87,6 @@ defmodule Pleroma.Web.WebFinger do
     |> XmlBuilder.to_doc()
   end
 
-  # This seems a better fit in Salmon
-  def ensure_keys_present(user) do
-    info = user.info
-
-    if info.keys do
-      {:ok, user}
-    else
-      {:ok, pem} = Salmon.generate_rsa_pem()
-
-      info_cng =
-        info
-        |> User.Info.set_keys(pem)
-
-      cng =
-        Ecto.Changeset.change(user)
-        |> Ecto.Changeset.put_embed(:info, info_cng)
-
-      User.update_and_set_cache(cng)
-    end
-  end
-
   defp get_magic_key(magic_key) do
     "data:application/magic-public-key," <> magic_key = magic_key
     {:ok, magic_key}