1 files changed, 40 insertions, 0 deletions
diff --git a/library/Director/Restriction/MatchingFilter.php b/library/Director/Restriction/MatchingFilter.php
new file mode 100644
index 0000000..162840c
--- /dev/null
+++ b/library/Director/Restriction/MatchingFilter.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace Icinga\Module\Director\Restriction;
+
+use Icinga\Data\Filter\Filter;
+use Icinga\User;
+
+class MatchingFilter
+{
+    public static function forPatterns(array $restrictions, $columnName)
+    {
+        $filters = [];
+        foreach ($restrictions as $restriction) {
+            foreach (preg_split('/\|/', $restriction) as $pattern) {
+                $filters[] = Filter::expression(
+                    $columnName,
+                    '=',
+                    $pattern
+                );
+            }
+        }
+
+        if (count($filters) === 1) {
+            return $filters[0];
+        } else {
+            return Filter::matchAny($filters);
+        }
+    }
+
+    public static function forUser(
+        User $user,
+        $restrictionName,
+        $columnName
+    ) {
+        return static::forPatterns(
+            $user->getRestrictions($restrictionName),
+            $columnName
+        );
+    }
+}