Remove User.upgrade_changeset in favor of remote_user_creation

The two changesets had the same purpose, yet some changes were updated
in one, but not the other (`uri`, for example).

Also makes `Transmogrifier.upgrade_user_from_ap_id` be called from
`ActivityPub.make_user_from_ap_id` only when the user is actually
not AP enabled yet.

I did not bother rewriting tests that used `User.insert_or_update`
to use the changeset instead because they seemed to just test the implementation,
rather than behavior.

lib/pleroma/user.ex

@@ -339,18 +339,20 @@ defp truncate_if_exists(params, key, max_length) do
     end
   end
 
-  def remote_user_creation(params) do
+  def remote_user_changeset(struct \\ %User{local: false}, params) do
     bio_limit = Pleroma.Config.get([:instance, :user_bio_length], 5000)
     name_limit = Pleroma.Config.get([:instance, :user_name_length], 100)
 
     params =
       params
+      |> Map.put(:name, blank?(params[:name]) || params[:nickname])
+      |> Map.put_new(:last_refreshed_at, NaiveDateTime.utc_now())
       |> truncate_if_exists(:name, name_limit)
       |> truncate_if_exists(:bio, bio_limit)
       |> truncate_fields_param()
 
     changeset =
-      %User{local: false}
+      struct
       |> cast(
         params,
         [
@@ -375,7 +377,8 @@ def remote_user_creation(params) do
           :discoverable,
           :invisible,
           :actor_type,
-          :also_known_as
+          :also_known_as,
+          :last_refreshed_at
         ]
       )
       |> validate_required([:name, :ap_id])
@@ -488,49 +491,6 @@ defp put_upload(value, type) do
     end
   end
 
-  def upgrade_changeset(struct, params \\ %{}, remote? \\ false) do
-    bio_limit = Pleroma.Config.get([:instance, :user_bio_length], 5000)
-    name_limit = Pleroma.Config.get([:instance, :user_name_length], 100)
-
-    params = Map.put(params, :last_refreshed_at, NaiveDateTime.utc_now())
-
-    params = if remote?, do: truncate_fields_param(params), else: params
-
-    struct
-    |> cast(
-      params,
-      [
-        :bio,
-        :name,
-        :follower_address,
-        :following_address,
-        :avatar,
-        :last_refreshed_at,
-        :ap_enabled,
-        :source_data,
-        :banner,
-        :locked,
-        :magic_key,
-        :follower_count,
-        :following_count,
-        :hide_follows,
-        :fields,
-        :hide_followers,
-        :allow_following_move,
-        :discoverable,
-        :hide_followers_count,
-        :hide_follows_count,
-        :actor_type,
-        :also_known_as
-      ]
-    )
-    |> unique_constraint(:nickname)
-    |> validate_format(:nickname, local_nickname_regex())
-    |> validate_length(:bio, max: bio_limit)
-    |> validate_length(:name, max: name_limit)
-    |> validate_fields(remote?)
-  end
-
   def update_as_admin_changeset(struct, params) do
     struct
     |> update_changeset(params)
@@ -1642,14 +1602,6 @@ def get_public_key_for_ap_id(ap_id) do
   defp blank?(""), do: nil
   defp blank?(n), do: n
 
-  def insert_or_update_user(data) do
-    data
-    |> Map.put(:name, blank?(data[:name]) || data[:nickname])
-    |> remote_user_creation()
-    |> Repo.insert(on_conflict: {:replace_all_except, [:id]}, conflict_target: :nickname)
-    |> set_cache()
-  end
-
   def ap_enabled?(%User{local: true}), do: true
   def ap_enabled?(%User{ap_enabled: ap_enabled}), do: ap_enabled
   def ap_enabled?(_), do: false

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -1551,11 +1551,22 @@ def fetch_and_prepare_user_from_ap_id(ap_id) do
   end
 
   def make_user_from_ap_id(ap_id) do
-    if _user = User.get_cached_by_ap_id(ap_id) do
+    user = User.get_cached_by_ap_id(ap_id)
+
+    if user && !User.ap_enabled?(user) do
       Transmogrifier.upgrade_user_from_ap_id(ap_id)
     else
       with {:ok, data} <- fetch_and_prepare_user_from_ap_id(ap_id) do
-        User.insert_or_update_user(data)
+        if user do
+          user
+          |> User.remote_user_changeset(data)
+          |> User.update_and_set_cache()
+        else
+          data
+          |> User.remote_user_changeset()
+          |> Repo.insert()
+          |> User.set_cache()
+        end
       else
         e -> {:error, e}
       end

lib/pleroma/web/activity_pub/transmogrifier.ex

@@ -710,7 +710,7 @@ def handle_incoming(
       {:ok, new_user_data} = ActivityPub.user_data_from_user_object(object)
 
       actor
-      |> User.upgrade_changeset(new_user_data, true)
+      |> User.remote_user_changeset(new_user_data)
       |> User.update_and_set_cache()
 
       ActivityPub.update(%{
@@ -1253,12 +1253,8 @@ def perform(:user_upgrade, user) do
   def upgrade_user_from_ap_id(ap_id) do
     with %User{local: false} = user <- User.get_cached_by_ap_id(ap_id),
          {:ok, data} <- ActivityPub.fetch_and_prepare_user_from_ap_id(ap_id),
-         already_ap <- User.ap_enabled?(user),
-         {:ok, user} <- upgrade_user(user, data) do
-      if not already_ap do
+         {:ok, user} <- update_user(user, data) do
       TransmogrifierWorker.enqueue("user_upgrade", %{"user_id" => user.id})
-      end
-
       {:ok, user}
     else
       %User{} = user -> {:ok, user}
@@ -1266,9 +1262,9 @@ def upgrade_user_from_ap_id(ap_id) do
     end
   end
 
-  defp upgrade_user(user, data) do
+  defp update_user(user, data) do
     user
-    |> User.upgrade_changeset(data, true)
+    |> User.remote_user_changeset(data)
     |> User.update_and_set_cache()
   end
 

test/user_test.exs

@@ -609,7 +609,7 @@ test "returns an ap_followers link for a user" do
              ) <> "/followers"
   end
 
-  describe "remote user creation changeset" do
+  describe "remote user changeset" do
     @valid_remote %{
       bio: "hello",
       name: "Someone",
@@ -621,28 +621,28 @@ test "returns an ap_followers link for a user" do
     setup do: clear_config([:instance, :user_name_length])
 
     test "it confirms validity" do
-      cs = User.remote_user_creation(@valid_remote)
+      cs = User.remote_user_changeset(@valid_remote)
       assert cs.valid?
     end
 
     test "it sets the follower_adress" do
-      cs = User.remote_user_creation(@valid_remote)
+      cs = User.remote_user_changeset(@valid_remote)
       # remote users get a fake local follower address
       assert cs.changes.follower_address ==
                User.ap_followers(%User{nickname: @valid_remote[:nickname]})
     end
 
     test "it enforces the fqn format for nicknames" do
-      cs = User.remote_user_creation(%{@valid_remote | nickname: "bla"})
+      cs = User.remote_user_changeset(%{@valid_remote | nickname: "bla"})
       assert Ecto.Changeset.get_field(cs, :local) == false
       assert cs.changes.avatar
       refute cs.valid?
     end
 
     test "it has required fields" do
-      [:name, :ap_id]
+      [:ap_id]
       |> Enum.each(fn field ->
-        cs = User.remote_user_creation(Map.delete(@valid_remote, field))
+        cs = User.remote_user_changeset(Map.delete(@valid_remote, field))
         refute cs.valid?
       end)
     end
@@ -1198,58 +1198,6 @@ test "get_public_key_for_ap_id fetches a user that's not in the db" do
     assert {:ok, _key} = User.get_public_key_for_ap_id("http://mastodon.example.org/users/admin")
   end
 
-  describe "insert or update a user from given data" do
-    test "with normal data" do
-      user = insert(:user, %{nickname: "nick@name.de"})
-      data = %{ap_id: user.ap_id <> "xxx", name: user.name, nickname: user.nickname}
-
-      assert {:ok, %User{}} = User.insert_or_update_user(data)
-    end
-
-    test "with overly long fields" do
-      current_max_length = Pleroma.Config.get([:instance, :account_field_value_length], 255)
-      user = insert(:user, nickname: "nickname@supergood.domain")
-
-      data = %{
-        ap_id: user.ap_id,
-        name: user.name,
-        nickname: user.nickname,
-        fields: [
-          %{"name" => "myfield", "value" => String.duplicate("h", current_max_length + 1)}
-        ]
-      }
-
-      assert {:ok, %User{}} = User.insert_or_update_user(data)
-    end
-
-    test "with an overly long bio" do
-      current_max_length = Pleroma.Config.get([:instance, :user_bio_length], 5000)
-      user = insert(:user, nickname: "nickname@supergood.domain")
-
-      data = %{
-        ap_id: user.ap_id,
-        name: user.name,
-        nickname: user.nickname,
-        bio: String.duplicate("h", current_max_length + 1)
-      }
-
-      assert {:ok, %User{}} = User.insert_or_update_user(data)
-    end
-
-    test "with an overly long display name" do
-      current_max_length = Pleroma.Config.get([:instance, :user_name_length], 100)
-      user = insert(:user, nickname: "nickname@supergood.domain")
-
-      data = %{
-        ap_id: user.ap_id,
-        name: String.duplicate("h", current_max_length + 1),
-        nickname: user.nickname
-      }
-
-      assert {:ok, %User{}} = User.insert_or_update_user(data)
-    end
-  end
-
   describe "per-user rich-text filtering" do
     test "html_filter_policy returns default policies, when rich-text is enabled" do
       user = insert(:user)

test/web/activity_pub/views/user_view_test.exs

@@ -29,7 +29,7 @@ test "Renders profile fields" do
 
     {:ok, user} =
       insert(:user)
-      |> User.upgrade_changeset(%{fields: fields})
+      |> User.update_changeset(%{fields: fields})
       |> User.update_and_set_cache()
 
     assert %{