diff -r 07239de796bb -r e756a8c72c3d cms/drupal/sites/all/modules/htmlpurifier/htmlpurifier.admin.inc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cms/drupal/sites/all/modules/htmlpurifier/htmlpurifier.admin.inc	Fri Sep 08 12:04:06 2017 +0200
@@ -0,0 +1,43 @@
+<?php
+
+/**
+ * @file
+ * Administrative page callbacks for the HTML Purifier module.
+ */
+
+/**
+ * Generate a form for configuring overall HTML Purifier settings.
+ *
+ * @ingroup forms
+ * @see htmlpurifier_admin_settings_submit()
+ */
+function htmlpurifier_admin_settings($form, &$form_state) {
+  $form['htmlpurifier_introduction'] = array(
+    '#markup' => t('<p>This page contains global settings for all HTML Purifier enabled filters.  If you are looking for specific filter configuration options, check <a href="@format">the format configurations page</a> and select the specific format you would like to configure.</p>', array('@filter' => url('admin/config/content/formats'))),
+  );
+  $form['htmlpurifier_clear_cache'] = array(
+    '#type' => 'submit',
+    '#value' => t('Clear cache (Warning: Can result in performance degradation)'),
+    '#submit' => array('_htmlpurifier_clear_cache')
+  );
+
+  $form = system_settings_form($form);
+  $form['#submit'][] = 'htmlpurifier_admin_settings_submit';
+  return $form;
+}
+
+/**
+ * Submit handler for the HTML Purifier settings form.
+ */
+function htmlpurifier_admin_settings_submit($form, &$form_state) {
+  // Resave all text formats so that the new cache settings for each format are
+  // recorded.
+  // TODO: There should be a better way to do this.
+  foreach (filter_formats() as $format) {
+    $format->filters = filter_list_format($format->format);
+    foreach ($format->filters as &$filter) {
+      $filter = (array) $filter;
+    }
+    filter_format_save($format);
+  }
+}