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<?php |
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namespace Goetas\Twital\SourceAdapter; |
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use Goetas\Twital\SourceAdapter; |
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use Goetas\Twital\Template; |
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/** |
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* |
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* @author Asmir Mustafic <[email protected]> |
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* |
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*/ |
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class XMLAdapter implements SourceAdapter |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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300 |
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public function load($source) |
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{ |
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$dom = $this->createDom($source); |
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return new Template($dom, $this->collectMetadata($dom, $source)); |
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} |
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/** |
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* Collect some metadata about $dom and $source |
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* @param \DOMDocument $dom |
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* @param string $source |
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* @return mixed |
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*/ |
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protected function collectMetadata(\DOMDocument $dom, $source) |
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{ |
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$metadata = array(); |
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$metadata['xmldeclaration'] = strpos(rtrim($source), '<?xml ') === 0; |
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$metadata['doctype'] = !!$dom->doctype; |
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return $metadata; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function dump(Template $template) |
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{ |
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$metadata = $template->getMetadata(); |
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$dom = $template->getDocument(); |
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$dom->preserveWhiteSpace = true; |
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$dom->formatOutput = false; |
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if ($metadata['xmldeclaration']) { |
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return $dom->saveXML(); |
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} else { |
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$xml = ''; |
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foreach ($dom->childNodes as $node) { |
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$xml .= $dom->saveXML($node); |
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if ($node instanceof \DOMDocumentType) { |
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$xml .= PHP_EOL; |
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} |
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} |
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return $xml; |
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} |
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} |
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protected function createDom($source) |
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{ |
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$internalErrors = libxml_use_internal_errors(true); |
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$disableEntities = libxml_disable_entity_loader(true); |
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libxml_clear_errors(); |
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$dom = new \DOMDocument('1.0', 'UTF-8'); |
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if (!$dom->loadXML($source, LIBXML_NONET | (defined('LIBXML_COMPACT') ? LIBXML_COMPACT : 0))) { |
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libxml_disable_entity_loader($disableEntities); |
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throw new \InvalidArgumentException(implode("\n", $this->getXmlErrors($internalErrors))); |
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} |
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libxml_use_internal_errors($internalErrors); |
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libxml_disable_entity_loader($disableEntities); |
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return $dom; |
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} |
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protected function getXmlErrors($internalErrors) |
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{ |
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$errors = array(); |
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foreach (libxml_get_errors() as $error) { |
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$errors[] = sprintf('[%s %s] %s (in %s - line %d, column %d)', |
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LIBXML_ERR_WARNING == $error->level ? 'WARNING' : 'ERROR', |
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$error->code, |
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trim($error->message), |
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$error->file ? $error->file : 'n/a', |
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$error->line, |
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$error->column |
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); |
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} |
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libxml_clear_errors(); |
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libxml_use_internal_errors($internalErrors); |
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return $errors; |
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} |
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} |
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goetas /
twital
