Added limits and media attachments for scheduled activities.

lib/pleroma/scheduled_activity.ex

@@ -5,9 +5,12 @@
 defmodule Pleroma.ScheduledActivity do
   use Ecto.Schema
 
+  alias Pleroma.Config
+  alias Pleroma.Object
   alias Pleroma.Repo
   alias Pleroma.ScheduledActivity
   alias Pleroma.User
+  alias Pleroma.Web.CommonAPI.Utils
 
   import Ecto.Query
   import Ecto.Changeset
@@ -25,11 +28,69 @@ defmodule Pleroma.ScheduledActivity do
   def changeset(%ScheduledActivity{} = scheduled_activity, attrs) do
     scheduled_activity
     |> cast(attrs, [:scheduled_at, :params])
+    |> validate_required([:scheduled_at, :params])
+    |> validate_scheduled_at()
+    |> with_media_attachments()
   end
 
+  defp with_media_attachments(
+         %{changes: %{params: %{"media_ids" => media_ids} = params}} = changeset
+       )
+       when is_list(media_ids) do
+    user = User.get_cached_by_id(changeset.data.user_id)
+    media_ids = Object.enforce_user_objects(user, media_ids) |> Enum.map(&to_string(&1))
+    media_attachments = Utils.attachments_from_ids(%{"media_ids" => media_ids})
+
+    params =
+      params
+      |> Map.put("media_attachments", media_attachments)
+      |> Map.put("media_ids", media_ids)
+
+    put_change(changeset, :params, params)
+  end
+
+  defp with_media_attachments(changeset), do: changeset
+
   def update_changeset(%ScheduledActivity{} = scheduled_activity, attrs) do
     scheduled_activity
     |> cast(attrs, [:scheduled_at])
+    |> validate_required([:scheduled_at])
+    |> validate_scheduled_at()
+  end
+
+  def validate_scheduled_at(changeset) do
+    validate_change(changeset, :scheduled_at, fn _, scheduled_at ->
+      cond do
+        not far_enough?(scheduled_at) ->
+          [scheduled_at: "must be at least 5 minutes from now"]
+
+        exceeds_daily_user_limit?(changeset.data.user_id, scheduled_at) ->
+          [scheduled_at: "daily limit exceeded"]
+
+        exceeds_total_user_limit?(changeset.data.user_id) ->
+          [scheduled_at: "total limit exceeded"]
+
+        true ->
+          []
+      end
+    end)
+  end
+
+  def exceeds_daily_user_limit?(user_id, scheduled_at) do
+    ScheduledActivity
+    |> where(user_id: ^user_id)
+    |> where([s], type(s.scheduled_at, :date) == type(^scheduled_at, :date))
+    |> select([u], count(u.id))
+    |> Repo.one()
+    |> Kernel.>=(Config.get([ScheduledActivity, :daily_user_limit]))
+  end
+
+  def exceeds_total_user_limit?(user_id) do
+    ScheduledActivity
+    |> where(user_id: ^user_id)
+    |> select([u], count(u.id))
+    |> Repo.one()
+    |> Kernel.>=(Config.get([ScheduledActivity, :total_user_limit]))
   end
 
   def far_enough?(scheduled_at) when is_binary(scheduled_at) do
@@ -64,23 +125,15 @@ defmodule Pleroma.ScheduledActivity do
     |> Repo.one()
   end
 
-  def update(%User{} = user, scheduled_activity_id, attrs) do
-    with %ScheduledActivity{} = scheduled_activity <- get(user, scheduled_activity_id) do
-      scheduled_activity
-      |> update_changeset(attrs)
-      |> Repo.update()
-    else
-      nil -> {:error, :not_found}
-    end
+  def update(scheduled_activity, attrs) do
+    scheduled_activity
+    |> update_changeset(attrs)
+    |> Repo.update()
   end
 
-  def delete(%User{} = user, scheduled_activity_id) do
-    with %ScheduledActivity{} = scheduled_activity <- get(user, scheduled_activity_id) do
-      scheduled_activity
-      |> Repo.delete()
-    else
-      nil -> {:error, :not_found}
-    end
+  def delete(scheduled_activity) do
+    scheduled_activity
+    |> Repo.delete()
   end
 
   def for_user_query(%User{} = user) do