api/statuses: allow expires_in to override user-level status_ttl_default

Fixes: #898

lib/pleroma/web/mastodon_api/controllers/status_controller.ex

@@ -172,14 +172,15 @@ def create(%{assigns: %{user: user}, body_params: %{status: _} = params} = conn,
       |> put_application(conn)
 
     expires_in_seconds =
-      if is_nil(user.status_ttl_days),
-        do: nil,
-        else: 60 * 60 * 24 * user.status_ttl_days
+      Map.get(params, :expires_in) ||
+        (user.status_ttl_days && 60 * 60 * 24 * user.status_ttl_days)
 
     params =
-      if is_nil(expires_in_seconds),
-        do: params,
-        else: Map.put(params, :expires_in, expires_in_seconds)
+      case expires_in_seconds do
+        nil -> params
+        0 -> Map.delete(params, :expires_in)
+        _ -> Map.put(params, :expires_in, expires_in_seconds)
+      end
 
     with {:ok, activity} <- CommonAPI.post(user, params) do
       try_render(conn, "show.json",

test/pleroma/web/mastodon_api/controllers/status_controller_test.exs

@@ -162,6 +162,57 @@ test "automatically setting a post expiry if status_ttl_days is set" do
       )
     end
 
+    test "API paramater overrides user status_ttl_days default" do
+      user = insert(:user, status_ttl_days: 1)
+      %{user: _user, token: _token, conn: conn} = oauth_access(["write:statuses"], user: user)
+
+      conn =
+        conn
+        |> put_req_header("content-type", "application/json")
+        |> post("/api/v1/statuses", %{
+          "status" => "aa chikichiki banban",
+          "expires_in" => 2 * 60 * 60
+        })
+
+      assert %{"id" => id} = json_response_and_validate_schema(conn, 200)
+
+      activity = Activity.get_by_id_with_object(id)
+      {:ok, expires_at, _} = DateTime.from_iso8601(activity.data["expires_at"])
+
+      expiry_delay = Timex.diff(expires_at, DateTime.utc_now(), :minutes)
+      assert(expiry_delay in [120, 119])
+
+      assert_enqueued(
+        worker: Pleroma.Workers.PurgeExpiredActivity,
+        args: %{activity_id: id},
+        scheduled_at: expires_at
+      )
+    end
+
+    test "API paramater can disable expiry from user-level status_ttl_default" do
+      user = insert(:user, status_ttl_days: 1)
+      %{user: _user, token: _token, conn: conn} = oauth_access(["write:statuses"], user: user)
+
+      conn =
+        conn
+        |> put_req_header("content-type", "application/json")
+        |> post("/api/v1/statuses", %{
+          "status" => "aa chikichiki banban",
+          "expires_in" => 0
+        })
+
+      assert %{"id" => id} = json_response_and_validate_schema(conn, 200)
+
+      activity = Activity.get_by_id_with_object(id)
+
+      refute activity.data["expires_at"]
+
+      refute_enqueued(
+        worker: Pleroma.Workers.PurgeExpiredActivity,
+        args: %{activity_id: id}
+      )
+    end
+
     test "it fails to create a status if `expires_in` is less or equal than an hour", %{
       conn: conn
     } do