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<?php |
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/* |
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* This file is part of the LightSAML-Core package. |
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* |
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* (c) Milos Tomic <[email protected]> |
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* |
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* This source file is subject to the MIT license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace LightSaml\Model\Metadata; |
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use LightSaml\Error\LightSamlXmlException; |
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use LightSaml\Model\AbstractSamlModel; |
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use LightSaml\Model\Context\DeserializationContext; |
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use LightSaml\Model\SamlElementInterface; |
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use LightSaml\SamlConstants; |
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abstract class Metadata extends AbstractSamlModel |
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{ |
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/** |
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* @param string $path |
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* |
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* @return EntitiesDescriptor|EntityDescriptor |
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*/ |
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public static function fromFile($path) |
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{ |
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$deserializatonContext = new DeserializationContext(); |
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$xml = file_get_contents($path); |
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return self::fromXML($xml, $deserializatonContext); |
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} |
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/** |
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* @param string $xml |
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* |
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* @return EntityDescriptor|EntitiesDescriptor |
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* |
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* @throws \Exception |
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*/ |
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public static function fromXML($xml, DeserializationContext $context) |
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{ |
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if (false == is_string($xml)) { |
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throw new \InvalidArgumentException('Expecting string'); |
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} |
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$context->getDocument()->loadXML($xml); |
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$node = $context->getDocument()->firstChild; |
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while ($node && $node instanceof \DOMComment) { |
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$node = $node->nextSibling; |
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} |
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if (null === $node) { |
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throw new LightSamlXmlException('Empty XML'); |
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} |
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if (SamlConstants::NS_METADATA !== $node->namespaceURI) { |
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throw new LightSamlXmlException(sprintf("Invalid namespace '%s' of the root XML element, expected '%s'", $node->namespaceURI, SamlConstants::NS_METADATA)); |
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} |
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$map = [ |
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'EntityDescriptor' => '\LightSaml\Model\Metadata\EntityDescriptor', |
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'EntitiesDescriptor' => '\LightSaml\Model\Metadata\EntitiesDescriptor', |
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]; |
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$rootElementName = $node->localName; |
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if (array_key_exists($rootElementName, $map)) { |
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if ($class = $map[$rootElementName]) { |
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/** @var SamlElementInterface $result */ |
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$result = new $class(); |
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} else { |
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throw new \LogicException('Deserialization of %s root element is not implemented'); |
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} |
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} else { |
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throw new LightSamlXmlException(sprintf("Unknown SAML metadata '%s'", $rootElementName)); |
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} |
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$result->deserialize($node, $context); |
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return $result; |
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} |
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} |
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When comparing two booleans, it is generally considered safer to use the strict comparison operator.