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<?php
namespace PhpZip\Model\Entry;
use PhpZip\Exception\ZipException;
use PhpZip\Stream\ZipInputStreamInterface;
/**
* This class is used to represent a ZIP file entry.
*
* @see https://pkware.cachefly.net/webdocs/casestudies/APPNOTE.TXT .ZIP File Format Specification
* @author Ne-Lexa alexey@nelexa.ru
* @license MIT
*/
class ZipSourceEntry extends ZipAbstractEntry
{
/**
* Max size cached content in memory.
*/
const MAX_SIZE_CACHED_CONTENT_IN_MEMORY = 524288; // 512 kb
/**
* @var ZipInputStreamInterface
*/
protected $inputStream;
/**
* @var string|resource Cached entry content.
*/
protected $entryContent;
/**
* @var string
*/
protected $readPassword;
/**
* @var bool
*/
private $clone = false;
/**
* ZipSourceEntry constructor.
* @param ZipInputStreamInterface $inputStream
*/
public function __construct(ZipInputStreamInterface $inputStream)
{
parent::__construct();
$this->inputStream = $inputStream;
}
/**
* @return ZipInputStreamInterface
*/
public function getInputStream()
{
return $this->inputStream;
}
/**
* Returns an string content of the given entry.
*
* @return string
* @throws ZipException
*/
public function getEntryContent()
{
if (null === $this->entryContent) {
$content = $this->inputStream->readEntryContent($this);
if ($this->getSize() < self::MAX_SIZE_CACHED_CONTENT_IN_MEMORY) {
$this->entryContent = $content;
} else {
$this->entryContent = fopen('php://temp', 'rb');
fwrite($this->entryContent, $content);
}
return $content;
}
if (is_resource($this->entryContent)) {
return stream_get_contents($this->entryContent, -1, 0);
}
return $this->entryContent;
}
/**
* Clone extra fields
*/
public function __clone()
{
$this->clone = true;
parent::__clone();
}
public function __destruct()
{
if (!$this->clone && null !== $this->entryContent && is_resource($this->entryContent)) {
fclose($this->entryContent);
}
}
}
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