1 files changed, 44 insertions, 0 deletions
diff --git a/library/X509/Model/Behavior/DERBase64.php b/library/X509/Model/Behavior/DERBase64.php
new file mode 100644
index 0000000..f7b7215
--- /dev/null
+++ b/library/X509/Model/Behavior/DERBase64.php
@@ -0,0 +1,44 @@
+<?php
+
+/* Icinga Web 2 X.509 Module | (c) 2022 Icinga GmbH | GPLv2 */
+
+namespace Icinga\Module\X509\Model\Behavior;
+
+use ipl\Orm\Contract\PropertyBehavior;
+
+/**
+ * Support automatically transformation of DER-encoded certificates to PEM and vice versa.
+ */
+class DERBase64 extends PropertyBehavior
+{
+    public function fromDb($value, $key, $_)
+    {
+        if (! $value) {
+            return null;
+        }
+
+        $block = chunk_split(base64_encode($value), 64, "\n");
+
+        return "-----BEGIN CERTIFICATE-----\n{$block}-----END CERTIFICATE-----";
+    }
+
+    public function toDb($value, $key, $_)
+    {
+        if (! $value) {
+            return null;
+        }
+
+        $lines = explode("\n", $value);
+        $der = '';
+
+        foreach ($lines as $line) {
+            if (strpos($line, '-----') === 0) {
+                continue;
+            }
+
+            $der .= base64_decode($line);
+        }
+
+        return $der;
+    }
+}