132 lines
4.3 KiB
PHP
132 lines
4.3 KiB
PHP
<?php
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/**
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* Piwik - Open source web analytics
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*
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* @link http://piwik.org
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* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
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*
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*/
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namespace Piwik\Unzip;
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use Exception;
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/**
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* Unzip wrapper around ZipArchive
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*
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*/
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class ZipArchive implements UncompressInterface
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{
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/**
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* @var \ZipArchive
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*/
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private $ziparchive;
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/**
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* @var string
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*/
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public $filename;
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/**
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* Constructor
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*
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* @param string $filename Name of the .zip archive
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* @throws Exception
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*/
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public function __construct($filename)
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{
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$this->filename = $filename;
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$this->ziparchive = new \ZipArchive;
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if ($this->ziparchive->open($filename) !== true) {
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throw new Exception('Error opening ' . $filename);
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}
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}
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/**
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* Extract files from archive to target directory
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*
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* @param string $pathExtracted Absolute path of target directory
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* @return mixed Array of filenames if successful; or 0 if an error occurred
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*/
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public function extract($pathExtracted)
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{
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if (substr_compare($pathExtracted, '/', -1))
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$pathExtracted .= '/';
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$fileselector = array();
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$list = array();
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$count = $this->ziparchive->numFiles;
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if ($count === 0) {
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return 0;
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}
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for ($i = 0; $i < $count; $i++) {
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$entry = $this->ziparchive->statIndex($i);
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$filename = str_replace('\\', '/', $entry['name']);
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$parts = explode('/', $filename);
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if (!strncmp($filename, '/', 1) ||
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array_search('..', $parts) !== false ||
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strpos($filename, ':') !== false
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) {
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return 0;
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}
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$fileselector[] = $entry['name'];
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$list[] = array(
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'filename' => $pathExtracted . $entry['name'],
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'stored_filename' => $entry['name'],
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'size' => $entry['size'],
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'compressed_size' => $entry['comp_size'],
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'mtime' => $entry['mtime'],
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'index' => $i,
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'crc' => $entry['crc'],
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);
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}
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$res = $this->ziparchive->extractTo($pathExtracted, $fileselector);
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if ($res === false)
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return 0;
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return $list;
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}
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/**
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* Get error status string for the latest error
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*
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* @return string
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*/
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public function errorInfo()
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{
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static $statusStrings = array(
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\ZIPARCHIVE::ER_OK => 'No error',
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\ZIPARCHIVE::ER_MULTIDISK => 'Multi-disk zip archives not supported',
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\ZIPARCHIVE::ER_RENAME => 'Renaming temporary file failed',
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\ZIPARCHIVE::ER_CLOSE => 'Closing zip archive failed',
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\ZIPARCHIVE::ER_SEEK => 'Seek error',
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\ZIPARCHIVE::ER_READ => 'Read error',
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\ZIPARCHIVE::ER_WRITE => 'Write error',
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\ZIPARCHIVE::ER_CRC => 'CRC error',
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\ZIPARCHIVE::ER_ZIPCLOSED => 'Containing zip archive was closed',
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\ZIPARCHIVE::ER_NOENT => 'No such file',
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\ZIPARCHIVE::ER_EXISTS => 'File already exists',
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\ZIPARCHIVE::ER_OPEN => 'Can\'t open file',
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\ZIPARCHIVE::ER_TMPOPEN => 'Failure to create temporary file',
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\ZIPARCHIVE::ER_ZLIB => 'Zlib error',
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\ZIPARCHIVE::ER_MEMORY => 'Malloc failure',
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\ZIPARCHIVE::ER_CHANGED => 'Entry has been changed',
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\ZIPARCHIVE::ER_COMPNOTSUPP => 'Compression method not supported',
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\ZIPARCHIVE::ER_EOF => 'Premature EOF',
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\ZIPARCHIVE::ER_INVAL => 'Invalid argument',
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\ZIPARCHIVE::ER_NOZIP => 'Not a zip archive',
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\ZIPARCHIVE::ER_INTERNAL => 'Internal error',
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\ZIPARCHIVE::ER_INCONS => 'Zip archive inconsistent',
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\ZIPARCHIVE::ER_REMOVE => 'Can\'t remove file',
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\ZIPARCHIVE::ER_DELETED => 'Entry has been deleted',
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);
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if (isset($statusStrings[$this->ziparchive->status])) {
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$statusString = $statusStrings[$this->ziparchive->status];
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} else {
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$statusString = 'Unknown status';
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}
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return $statusString . '(' . $this->ziparchive->status . ')';
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}
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}
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