git subrepo commit (merge) mailcow/src/mailcow-dockerized

subrepo: subdir:   "mailcow/src/mailcow-dockerized"
  merged:   "02ae5285"
upstream: origin:   "https://github.com/mailcow/mailcow-dockerized.git"
  branch:   "master"
  commit:   "649a5c01"
git-subrepo: version:  "0.4.3"
  origin:   "???"
  commit:   "???"
Change-Id: I870ad468fba026cc5abf3c5699ed1e12ff28b32b
diff --git a/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/adldap2/adldap2/src/Configuration/Validators/BooleanValidator.php b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/adldap2/adldap2/src/Configuration/Validators/BooleanValidator.php
new file mode 100644
index 0000000..23b4846
--- /dev/null
+++ b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/adldap2/adldap2/src/Configuration/Validators/BooleanValidator.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace Adldap\Configuration\Validators;
+
+use Adldap\Configuration\ConfigurationException;
+
+/**
+ * Class BooleanValidator.
+ *
+ * Validates that the configuration value is a boolean.
+ */
+class BooleanValidator extends Validator
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function validate()
+    {
+        if (!is_bool($this->value)) {
+            throw new ConfigurationException("Option {$this->key} must be a boolean.");
+        }
+
+        return true;
+    }
+}