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<?php |
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declare(strict_types=1); |
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namespace Eclipxe\XmlSchemaValidator\Internal; |
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use Exception; |
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use InvalidArgumentException; |
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use LibXMLError; |
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class LibXmlException extends Exception |
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{ |
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private const ERROR_LEVEL_SUPPRESS_ALL = 0; |
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/** @var LibXMLError[] */ |
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private $errors; |
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/** |
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* LibXmlException constructor. |
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* |
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* @param string $message |
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* @param LibXMLError[] $errors |
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* @throws InvalidArgumentException if errors array is empty |
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*/ |
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private function __construct(string $message, array $errors) |
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{ |
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if ([] === $errors) { |
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throw new InvalidArgumentException('Errors array of LibXmlError is empty'); |
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} |
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parent::__construct($message); |
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$this->errors = $errors; |
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} |
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/** |
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* Create an instance with the provided information |
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* |
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* @param string $message |
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* @param LibXMLError[] $errors |
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* @return LibXmlException |
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* @throws InvalidArgumentException when an error item is not a LibXmlError |
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*/ |
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public static function create(string $message, array $errors): self |
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{ |
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/** @var mixed $error psalm found this validation contradictory since $errors is defined as LibXMLError[] */ |
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foreach ($errors as $index => $error) { |
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if (! $error instanceof LibXMLError) { |
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throw new InvalidArgumentException("Error index $index is not a LibXmlError"); |
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} |
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} |
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return new self($message, $errors); |
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} |
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/** |
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* List of libxml errors |
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* |
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* @return LibXMLError[] |
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*/ |
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public function getErrors(): array |
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{ |
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return $this->errors; |
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} |
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/** |
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* Create a LibXmlException based on errors in libxml. |
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* If found, clear the errors and chain all the error messages. |
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* |
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* @return LibXmlException|null |
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*/ |
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public static function createFromLibXml(): ?self |
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{ |
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$errors = libxml_get_errors(); |
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if (! count($errors)) { |
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return null; |
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} |
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libxml_clear_errors(); |
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$error = end($errors); |
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return self::create($error->message, $errors); |
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} |
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/** |
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* Execute a callable ensuring that the execution will occur inside an environment |
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* where libxml use internal errors is true. |
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* |
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* After executing the callable the value of libxml use internal errors is set to |
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* previous value. |
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* |
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* @param callable $callable |
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* @return mixed |
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* |
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* @throws LibXmlException if some error inside libxml was found |
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*/ |
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public static function useInternalErrors(callable $callable) |
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{ |
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// capture current error reporting level and set to no-errors |
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$previousErrorReporting = error_reporting(self::ERROR_LEVEL_SUPPRESS_ALL); |
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// capture current libxml use internal errors and set to true |
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$previousLibXmlUseInternalErrors = libxml_use_internal_errors(true); |
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if ($previousLibXmlUseInternalErrors) { |
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libxml_clear_errors(); |
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} |
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// run callable and throw libxml error as exception and always restore previous status |
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try { |
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/** @psalm-var mixed $return */ |
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$return = $callable(); |
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$exception = static::createFromLibXml(); |
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if (null !== $exception) { |
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throw $exception; |
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} |
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return $return; |
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} finally { |
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// restore error reporting level and libxml use internal errors |
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error_reporting($previousErrorReporting); |
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libxml_use_internal_errors($previousLibXmlUseInternalErrors); |
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} |
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} |
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} |
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eclipxe13 /
XmlSchemaValidator
