1 files changed, 56 insertions, 0 deletions
diff --git a/lib/pleroma/web/common_api/common_api.ex b/lib/pleroma/web/common_api/common_api.ex
new file mode 100644
index 000000000..b08138534
--- /dev/null
+++ b/lib/pleroma/web/common_api/common_api.ex
@@ -0,0 +1,56 @@
+defmodule Pleroma.Web.CommonAPI do
+  alias Pleroma.{Repo, Activity, Object}
+  alias Pleroma.Web.ActivityPub.ActivityPub
+
+  def delete(activity_id, user) do
+    with %Activity{data: %{"object" => %{"id" => object_id}}} <- Repo.get(Activity, activity_id),
+         %Object{} = object <- Object.get_by_ap_id(object_id),
+           true <- user.ap_id == object.data["actor"],
+         {:ok, delete} <- ActivityPub.delete(object) do
+      {:ok, delete}
+    end
+  end
+
+  def repeat(id_or_ap_id, user) do
+    with %Activity{} = activity <- get_by_id_or_ap_id(id_or_ap_id),
+         false <- activity.data["actor"] == user.ap_id,
+         object <- Object.get_by_ap_id(activity.data["object"]["id"]) do
+      ActivityPub.announce(user, object)
+    else
+      _ ->
+        {:error, "Could not repeat"}
+    end
+  end
+
+  def favorite(id_or_ap_id, user) do
+    with %Activity{} = activity <- get_by_id_or_ap_id(id_or_ap_id),
+         false <- activity.data["actor"] == user.ap_id,
+         object <- Object.get_by_ap_id(activity.data["object"]["id"]) do
+      ActivityPub.like(user, object)
+    else
+      _ ->
+        {:error, "Could not favorite"}
+    end
+  end
+
+  def unfavorite(id_or_ap_id, user) do
+    with %Activity{} = activity <- get_by_id_or_ap_id(id_or_ap_id),
+         false <- activity.data["actor"] == user.ap_id,
+         object <- Object.get_by_ap_id(activity.data["object"]["id"]) do
+      ActivityPub.unlike(user, object)
+    else
+      _ ->
+        {:error, "Could not unfavorite"}
+    end
+  end
+
+  # This is a hack for twidere.
+  def get_by_id_or_ap_id(id) do
+    activity = Repo.get(Activity, id) || Activity.get_create_activity_by_object_ap_id(id)
+    if activity.data["type"] == "Create" do
+      activity
+    else
+      Activity.get_create_activity_by_object_ap_id(activity.data["object"])
+    end
+  end
+end