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<?php |
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declare(strict_types=1); |
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namespace Chubbyphp\Deserialization\Transformer; |
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final class XmlTransformer implements TransformerInterface |
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{ |
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/** |
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* @var int |
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*/ |
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private $options; |
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/** |
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* @param int $options |
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*/ |
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public function __construct($options = 0) |
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{ |
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$this->options = $options; |
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} |
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/** |
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* @return string |
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*/ |
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public function getContentType(): string |
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{ |
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return 'application/xml'; |
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} |
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/** |
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* @param string $string |
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* |
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* @return array |
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* |
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* @throws TransformerException |
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*/ |
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public function transform(string $string): array |
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{ |
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$document = new \DOMDocument(); |
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if (!@$document->loadXML($string, $this->options)) { |
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throw TransformerException::create('Xml not parsable'); |
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} |
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return $this->transformType($document->getElementsByTagName('meta-type')->item(0)); |
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} |
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/** |
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* @param \DOMElement $node |
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* |
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* @return array |
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*/ |
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private function transformType(\DOMElement $node): array |
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{ |
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$data = []; |
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$childNodes = []; |
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foreach ($node->childNodes as $childNode) { |
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if ($childNode instanceof \DOMElement) { |
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$childNodes[] = $childNode; |
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} |
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} |
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foreach ($childNodes as $childNode) { |
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if (0 === $childNode->childNodes->length) { |
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$data[$this->getKey($childNode)] = null; |
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continue; |
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} |
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if (1 === $childNode->childNodes->length) { |
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$data[$this->getKey($childNode)] = $this->getValue($childNode); |
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continue; |
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} |
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if ('meta-type' === $childNode->nodeName && !$childNode->hasAttribute('key')) { |
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return $this->transformType($childNode); |
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} |
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$data[$this->getKey($childNode)] = $this->transformType($childNode); |
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} |
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if ('meta-type' === $node->nodeName && $node->hasAttribute('value')) { |
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$data['_type'] = $node->getAttribute('value'); |
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} |
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return $data; |
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} |
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/** |
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* @param \DOMElement $node |
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* |
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* @return string|int |
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*/ |
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private function getKey(\DOMElement $node) |
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{ |
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if ($node->hasAttribute('key')) { |
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return (int) $node->getAttribute('key'); |
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} |
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$name = $node->nodeName; |
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if (0 === strpos($name, 'meta-')) { |
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$name = '_'.substr($name, 5); |
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} |
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return $name; |
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} |
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/** |
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* @param \DOMElement $node |
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* |
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* @return bool|string |
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*/ |
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private function getValue(\DOMElement $node) |
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{ |
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$value = $node->nodeValue; |
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if ('boolean' === $type = $node->getAttribute('type')) { |
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return 'true' === $value; |
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} |
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settype($value, $type); |
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return $value; |
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} |
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} |
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chubbyphp /
chubbyphp-deserialization
This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass.
Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type.