From dfbf06274c0ba6c67caf6d144c2c4a2bf678009e Mon Sep 17 00:00:00 2001
From: Sebastian Serth <Sebastian.Serth@hpi.de>
Date: Thu, 24 Nov 2022 17:16:18 +0100
Subject: [PATCH] Specify class for html_escape

---
 app/controllers/execution_environments_controller.rb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/controllers/execution_environments_controller.rb b/app/controllers/execution_environments_controller.rb
index 9c4d3f87..e88701ee 100644
--- a/app/controllers/execution_environments_controller.rb
+++ b/app/controllers/execution_environments_controller.rb
@@ -152,7 +152,7 @@ class ExecutionEnvironmentsController < ApplicationController
     @docker_images ||= ExecutionEnvironment.pluck(:docker_image)
     @docker_images += Runner.strategy_class.available_images
   rescue Runner::Error => e
-    flash.now[:warning] = html_escape e.message
+    flash.now[:warning] = ERB::Util.html_escape e.message
   ensure
     @docker_images = @docker_images.sort.uniq
   end
@@ -189,7 +189,7 @@ class ExecutionEnvironmentsController < ApplicationController
       Runner.strategy_class.sync_environment(@execution_environment)
     rescue Runner::Error => e
       Rails.logger.warn { "Runner error while synchronizing execution environment with id #{@execution_environment.id}: #{e.message}" }
-      redirect_to @execution_environment, alert: t('execution_environments.index.synchronize.failure', error: html_escape(e.message))
+      redirect_to @execution_environment, alert: t('execution_environments.index.synchronize.failure', error: ERB::Util.html_escape(e.message))
     else
       redirect_to @execution_environment, notice: t('execution_environments.index.synchronize.success')
     end