Add xenc11:MGF element

src/XML/xenc11/AbstractMGFType.php

@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SimpleSAML\XMLSecurity\XML\xenc11;
+
+/**
+ * Class representing <xenc11:AbstractMGFType>.
+ *
+ * @package simplesamlphp/xml-security
+ */
+abstract class AbstractMGFType extends AbstractAlgorithmIdentifierType
+{
+    /**
+     * MGFType constructor.
+     *
+     * @param string $Algorithm
+     */
+    public function __construct(
+        string $Algorithm,
+    ) {
+        parent::__construct($Algorithm, null);
+    }
+}

src/XML/xenc11/MGF.php

@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SimpleSAML\XMLSecurity\XML\xenc11;
+
+use DOMElement;
+use SimpleSAML\Assert\Assert;
+use SimpleSAML\XML\Exception\InvalidDOMElementException;
+
+/**
+ * A class implementing the xenc11:MGF element.
+ *
+ * @package simplesamlphp/xml-security
+ */
+final class MGF extends AbstractMGFType
+{
+    /**
+     * @inheritDoc
+     *
+     * @throws \SimpleSAML\XML\Exception\InvalidDOMElementException
+     *   If the qualified name of the supplied element is wrong
+     */
+    public static function fromXML(DOMElement $xml): static
+    {
+        Assert::same($xml->localName, static::getLocalName(), InvalidDOMElementException::class);
+        Assert::same($xml->namespaceURI, static::getNamespaceURI(), InvalidDOMElementException::class);
+
+        return new static(
+            self::getOptionalAttribute($xml, 'Algorithm', null),
+        );
+    }
+}

tests/XML/xenc11/MGFTest.php

@@ -0,0 +1,62 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SimpleSAML\Test\SAML2\XML\xenc11;
+
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\TestCase;
+use SimpleSAML\XML\DOMDocumentFactory;
+use SimpleSAML\XML\TestUtils\SchemaValidationTestTrait;
+use SimpleSAML\XML\TestUtils\SerializableElementTestTrait;
+use SimpleSAML\XMLSecurity\XML\xenc11\AbstractAlgorithmIdentifierType;
+use SimpleSAML\XMLSecurity\XML\xenc11\AbstractMGFType;
+use SimpleSAML\XMLSecurity\XML\xenc11\AbstractXenc11Element;
+use SimpleSAML\XMLSecurity\XML\xenc11\MGF;
+
+use function dirname;
+use function strval;
+
+/**
+ * Class \SimpleSAML\XMLSecurity\XML\xenc11\MGFTest
+ *
+ * @package simplesamlphp/xml-security
+ */
+#[CoversClass(MGF::class)]
+#[CoversClass(AbstractMGFType::class)]
+#[CoversClass(AbstractAlgorithmIdentifierType::class)]
+#[CoversClass(AbstractXenc11Element::class)]
+final class MGFTest extends TestCase
+{
+    use SchemaValidationTestTrait;
+    use SerializableElementTestTrait;
+
+    /**
+     */
+    public static function setUpBeforeClass(): void
+    {
+        self::$testedClass = MGF::class;
+
+        self::$schemaFile = dirname(__FILE__, 4) . '/resources/schemas/xenc-schema-11.xsd';
+
+        self::$xmlRepresentation = DOMDocumentFactory::fromFile(
+            dirname(__FILE__, 3) . '/resources/xml/xenc11_MGF.xml',
+        );
+    }
+
+
+    // marshalling
+
+
+    /**
+     */
+    public function testMarshalling(): void
+    {
+        $mgf = new MGF('urn:x-simplesamlphp:algorithm');
+
+        $this->assertEquals(
+            self::$xmlRepresentation->saveXML(self::$xmlRepresentation->documentElement),
+            strval($mgf),
+        );
+    }
+}

tests/resources/xml/xenc11_MGF.xml

@@ -0,0 +1 @@
+<xenc11:MGF xmlns:xenc11="http://www.w3.org/2009/xmlenc11#" Algorithm="urn:x-simplesamlphp:algorithm" />