From 1bee2db5832ef54266029a5487093e636b097516 Mon Sep 17 00:00:00 2001
From: Johannes Meyer <johannes.meyer@icinga.com>
Date: Mon, 13 Jun 2022 14:00:26 +0200
Subject: [PATCH] DbConnection: Only ignore the `*` for equal/unequal
 conditions

fixes #4813
---
 library/Icinga/Data/Db/DbConnection.php | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/library/Icinga/Data/Db/DbConnection.php b/library/Icinga/Data/Db/DbConnection.php
index 26ccb6bb1..ad3f1b6bd 100644
--- a/library/Icinga/Data/Db/DbConnection.php
+++ b/library/Icinga/Data/Db/DbConnection.php
@@ -6,8 +6,8 @@ namespace Icinga\Data\Db;
 use DateTime;
 use DateTimeZone;
 use Exception;
-use Icinga\Data\Filter\FilterMatch;
-use Icinga\Data\Filter\FilterMatchNot;
+use Icinga\Data\Filter\FilterEqual;
+use Icinga\Data\Filter\FilterNotEqual;
 use Icinga\Data\Inspectable;
 use Icinga\Data\Inspection;
 use PDO;
@@ -544,6 +544,9 @@ class DbConnection implements Selectable, Extensible, Updatable, Reducible, Insp
         $sign = $filter->getSign();
         $value = $filter->getExpression();
 
+        $matchWildcard = $sign === '=' && ! $filter instanceof FilterEqual
+            || $sign === '!=' && ! $filter instanceof FilterNotEqual;
+
         if (is_array($value)) {
             $comp = [];
             $pattern = [];
@@ -579,13 +582,13 @@ class DbConnection implements Selectable, Extensible, Updatable, Reducible, Insp
             }
 
             return count($sql) === 1 ? $sql[0] : '(' . implode(" $operator ", $sql) . ')';
-        } elseif ($filter instanceof FilterMatch && $value !== null && strpos($value, '*') !== false) {
+        } elseif ($matchWildcard && $value !== null && strpos($value, '*') !== false) {
             if ($value === '*') {
                 return $column . ' IS NOT NULL';
             }
 
             return $column . ' LIKE ' . $this->dbAdapter->quote(preg_replace('~\*~', '%', $value));
-        } elseif ($filter instanceof FilterMatchNot && $value !== null && strpos($value, '*') !== false) {
+        } elseif ($matchWildcard && $value !== null && strpos($value, '*') !== false) {
             if ($value === '*') {
                 return $column . ' IS NULL';
             }