124 lines
3.3 KiB
PHP
124 lines
3.3 KiB
PHP
<?php
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namespace Box\Spout\Reader\Wrapper;
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/**
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* Class XMLReader
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* Wrapper around the built-in XMLReader
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* @see \XMLReader
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*
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* @package Box\Spout\Reader\Wrapper
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*/
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class XMLReader extends \XMLReader
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{
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use XMLInternalErrorsHelper;
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/**
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* Set the URI containing the XML to parse
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* @see \XMLReader::open
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*
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* @param string $URI URI pointing to the document
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* @return bool TRUE on success or FALSE on failure
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*/
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public function open($URI)
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{
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$wasOpenSuccessful = false;
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// HHVM does not check if file exists within zip file
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// @link https://github.com/facebook/hhvm/issues/5779
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if ($this->isRunningHHVM() && $this->isZipStream($URI)) {
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if ($this->fileExistsWithinZip($URI)) {
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$wasOpenSuccessful = parent::open($URI, null, LIBXML_NONET);
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}
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} else {
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$wasOpenSuccessful = parent::open($URI, null, LIBXML_NONET);
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}
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return $wasOpenSuccessful;
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}
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/**
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* Returns whether the given URI is a zip stream.
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*
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* @param string $URI URI pointing to a document
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* @return bool TRUE if URI is a zip stream, FALSE otherwise
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*/
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protected function isZipStream($URI)
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{
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return (strpos($URI, 'zip://') === 0);
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}
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/**
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* Returns whether the current environment is HHVM
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*
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* @return bool TRUE if running on HHVM, FALSE otherwise
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*/
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protected function isRunningHHVM()
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{
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return defined('HHVM_VERSION');
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}
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/**
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* Returns whether the file at the given location exists
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*
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* @param string $zipStreamURI URI of a zip stream, e.g. "zip://file.zip#path/inside.xml"
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* @return bool TRUE if the file exists, FALSE otherwise
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*/
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protected function fileExistsWithinZip($zipStreamURI)
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{
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$doesFileExists = false;
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$pattern = '/zip:\/\/([^#]+)#(.*)/';
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if (preg_match($pattern, $zipStreamURI, $matches)) {
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$zipFilePath = $matches[1];
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$innerFilePath = $matches[2];
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$zip = new \ZipArchive();
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if ($zip->open($zipFilePath) === true) {
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$doesFileExists = ($zip->locateName($innerFilePath) !== false);
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$zip->close();
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}
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}
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return $doesFileExists;
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}
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/**
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* Move to next node in document
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* @see \XMLReader::read
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*
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* @return bool TRUE on success or FALSE on failure
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* @throws \Box\Spout\Reader\Exception\XMLProcessingException If an error/warning occurred
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*/
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public function read()
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{
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$this->useXMLInternalErrors();
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$wasReadSuccessful = parent::read();
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$this->resetXMLInternalErrorsSettingAndThrowIfXMLErrorOccured();
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return $wasReadSuccessful;
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}
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/**
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* Move cursor to next node skipping all subtrees
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* @see \XMLReader::next
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*
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* @param string|void $localName The name of the next node to move to
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* @return bool TRUE on success or FALSE on failure
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* @throws \Box\Spout\Reader\Exception\XMLProcessingException If an error/warning occurred
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*/
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public function next($localName = null)
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{
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$this->useXMLInternalErrors();
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$wasNextSuccessful = parent::next($localName);
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$this->resetXMLInternalErrorsSettingAndThrowIfXMLErrorOccured();
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return $wasNextSuccessful;
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}
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}
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