Merge remote-tracking branch 'remotes/origin/develop' into 2168-media-preview-proxy

[akkoma] / lib / pleroma / activity_expiration.ex

diff --git a/lib/pleroma/activity_expiration.ex b/lib/pleroma/activity_expiration.ex
index d3d95f9e94ec5cad4d02b6ff4a99d1f10e9cec6c..7cc9668b373cc252cf0f42d812cc459e4c321324 100644 (file)
--- a/lib/pleroma/activity_expiration.ex
+++ b/lib/pleroma/activity_expiration.ex
@@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.ActivityExpiration do
@@ -7,18 +7,38 @@ defmodule Pleroma.ActivityExpiration do
 
   alias Pleroma.Activity
   alias Pleroma.ActivityExpiration
-  alias Pleroma.FlakeId
   alias Pleroma.Repo
 
+  import Ecto.Changeset
   import Ecto.Query
 
   @type t :: %__MODULE__{}
+  @min_activity_lifetime :timer.hours(1)
 
   schema "activity_expirations" do
-    belongs_to(:activity, Activity, type: FlakeId)
+    belongs_to(:activity, Activity, type: FlakeId.Ecto.CompatType)
     field(:scheduled_at, :naive_datetime)
   end
 
+  def changeset(%ActivityExpiration{} = expiration, attrs, validate_scheduled_at) do
+    expiration
+    |> cast(attrs, [:scheduled_at])
+    |> validate_required([:scheduled_at])
+    |> validate_scheduled_at(validate_scheduled_at)
+  end
+
+  def get_by_activity_id(activity_id) do
+    ActivityExpiration
+    |> where([exp], exp.activity_id == ^activity_id)
+    |> Repo.one()
+  end
+
+  def create(%Activity{} = activity, scheduled_at, validate_scheduled_at \\ true) do
+    %ActivityExpiration{activity_id: activity.id}
+    |> changeset(%{scheduled_at: scheduled_at}, validate_scheduled_at)
+    |> Repo.insert()
+  end
+
   def due_expirations(offset \\ 0) do
     naive_datetime =
       NaiveDateTime.utc_now()
@@ -28,4 +48,22 @@ defmodule Pleroma.ActivityExpiration do
     |> where([exp], exp.scheduled_at < ^naive_datetime)
     |> Repo.all()
   end
+
+  def validate_scheduled_at(changeset, false), do: changeset
+
+  def validate_scheduled_at(changeset, true) do
+    validate_change(changeset, :scheduled_at, fn _, scheduled_at ->
+      if not expires_late_enough?(scheduled_at) do
+        [scheduled_at: "an ephemeral activity must live for at least one hour"]
+      else
+        []
+      end
+    end)
+  end
+
+  def expires_late_enough?(scheduled_at) do
+    now = NaiveDateTime.utc_now()
+    diff = NaiveDateTime.diff(scheduled_at, now, :millisecond)
+    diff > @min_activity_lifetime
+  end
 end