[advancedcontentfilter] Suppress rule evaluation errors

diff --git a/advancedcontentfilter/advancedcontentfilter.php b/advancedcontentfilter/advancedcontentfilter.php
index 55a80a802ebc18f41587606766b4aa9117088e5b..74728c042933c71cc7d734cf2761c5a145829652 100644 (file)
--- a/advancedcontentfilter/advancedcontentfilter.php
+++ b/advancedcontentfilter/advancedcontentfilter.php
@@ -133,7 +133,8 @@ function advancedcontentfilter_prepare_body_content_filter(App $a, &$hook_data)
                                        $rule['serialized']
                                );
 
-                               $found = (bool) $expressionLanguage->evaluate($serializedParsedExpression, $vars);
+                               // The error suppression operator is used because of potentially broken user-supplied regular expressions
+                               $found = (bool) @$expressionLanguage->evaluate($serializedParsedExpression, $vars);
                        } catch (Exception $e) {
                                $found = false;
                        }