Add missing KeyInfoConfirmationData-type

Author: tvdijen

src/XML/saml/AbstractKeyInfoConfirmationData.php

@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SimpleSAML\SAML2\XML\saml;
+
+use SimpleSAML\SAML2\Assert\Assert;
+use SimpleSAML\XMLSchema\Exception\MissingElementException;
+use SimpleSAML\XMLSchema\Exception\SchemaViolationException;
+use SimpleSAML\XMLSecurity\XML\ds\KeyInfo;
+
+/**
+ * Abstract class representing SAML 2 KeyInfoConfirmationData element.
+ *
+ * @package simplesamlphp/saml2
+ */
+abstract class AbstractKeyInfoConfirmationData extends AbstractSubjectConfirmationData
+{
+    /**
+     * Initialize (and parse) a KeyInfoConfirmationData element.
+     *
+     * @param \SimpleSAML\XMLSecurity\XML\ds\KeyInfo[] $keyInfo
+     */
+    public function __construct(
+        array $keyInfo = [],
+    ) {
+        Assert::allIsInstanceOf($keyInfo, KeyInfo::class, SchemaViolationException::class);
+        Assert::minCount($keyInfo, 1, MissingElementException::class);
+
+        parent::__construct(null, null, null, null, null, $keyInfo, []);
+    }
+}