Add xenc11:PRF element

Author: tvdijen

src/XML/xenc11/AbstractPRFAlgorithmIdentifierType.php

@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SimpleSAML\XMLSecurity\XML\xenc11;
+
+use SimpleSAML\Assert\Assert;
+use SimpleSAML\XML\Exception\SchemaViolationException;
+
+/**
+ * Class representing <xenc11:AbstractPRFAlgorithmIdentifierType>.
+ *
+ * @package simplesamlphp/xml-security
+ */
+abstract class AbstractPRFAlgorithmIdentifierType extends AbstractAlgorithmIdentifierType
+{
+    /**
+     * AlgorithmPRFIdentifierType constructor.
+     *
+     * @param string $Algorithm
+     * @param \SimpleSAML\XMLSecurity\XML\xenc11\Parameters|null $parameters
+     */
+    public function __construct(
+        string $Algorithm,
+        ?Parameters $parameters = null, // Not used because not allowed by spec
+    ) {
+        Assert::null($parameters, SchemaViolationException::class);
+        parent::__construct($Algorithm, null);
+    }
+}

src/XML/xenc11/PRF.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:PRF element.
+ *
+ * @package simplesamlphp/xml-security
+ */
+final class PRF extends AbstractPRFAlgorithmIdentifierType
+{
+    /**
+     * @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/PRFTest.php

@@ -0,0 +1,58 @@
+<?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\SerializableElementTestTrait;
+use SimpleSAML\XMLSecurity\XML\xenc11\AbstractAlgorithmIdentifierType;
+use SimpleSAML\XMLSecurity\XML\xenc11\AbstractPRFAlgorithmIdentifierType;
+use SimpleSAML\XMLSecurity\XML\xenc11\AbstractXenc11Element;
+use SimpleSAML\XMLSecurity\XML\xenc11\PRF;
+
+use function dirname;
+use function strval;
+
+/**
+ * Class \SimpleSAML\XMLSecurity\XML\xenc11\PRFTest
+ *
+ * @package simplesamlphp/xml-security
+ */
+#[CoversClass(PRF::class)]
+#[CoversClass(AbstractPRfAlgorithmIdentifierType::class)]
+#[CoversClass(AbstractAlgorithmIdentifierType::class)]
+#[CoversClass(AbstractXenc11Element::class)]
+final class PRFTest extends TestCase
+{
+    use SerializableElementTestTrait;
+
+    /**
+     */
+    public static function setUpBeforeClass(): void
+    {
+        self::$testedClass = PRF::class;
+
+        self::$xmlRepresentation = DOMDocumentFactory::fromFile(
+            dirname(__FILE__, 3) . '/resources/xml/xenc11_PRF.xml',
+        );
+    }
+
+
+    // marshalling
+
+
+    /**
+     */
+    public function testMarshalling(): void
+    {
+        $prf = new PRF('urn:x-simplesamlphp:algorithm');
+
+        $this->assertEquals(
+            self::$xmlRepresentation->saveXML(self::$xmlRepresentation->documentElement),
+            strval($prf),
+        );
+    }
+}

tests/resources/xml/xenc11_PRF.xml

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