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<?php |
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namespace PhpZip\Model\Data; |
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use PhpZip\Model\ZipData; |
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use PhpZip\Model\ZipEntry; |
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use PhpZip\ZipFile; |
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/** |
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* The class contains a streaming resource with new content added to the ZIP archive. |
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*/ |
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class ZipNewData implements ZipData |
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{ |
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/** |
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* A static variable allows closing the stream in the destructor |
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* only if it is its sole holder. |
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* |
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* @var array<int, int> array of resource ids and the number of class clones |
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*/ |
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private static $guardClonedStream = []; |
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/** @var ZipEntry */ |
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private $zipEntry; |
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/** @var resource */ |
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private $stream; |
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66 |
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/** |
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* ZipStringData constructor. |
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* |
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* @param ZipEntry $zipEntry |
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* @param string|resource $data |
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*/ |
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public function __construct(ZipEntry $zipEntry, $data) |
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{ |
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$this->zipEntry = $zipEntry; |
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if (\is_string($data)) { |
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$zipEntry->setUncompressedSize(\strlen($data)); |
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if (!($handle = fopen('php://temp', 'w+b'))) { |
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throw new \RuntimeException('Temp resource can not open from write.'); |
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} |
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fwrite($handle, $data); |
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rewind($handle); |
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$this->stream = $handle; |
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} elseif (\is_resource($data)) { |
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$this->stream = $data; |
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} |
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$resourceId = (int) $this->stream; |
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self::$guardClonedStream[$resourceId] = |
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isset(self::$guardClonedStream[$resourceId]) ? |
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self::$guardClonedStream[$resourceId] + 1 : |
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0; |
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} |
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1 |
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/** |
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* @return resource returns stream data |
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*/ |
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public function getDataAsStream() |
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{ |
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if (!\is_resource($this->stream)) { |
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throw new \LogicException(sprintf('Resource was closed (entry=%s).', $this->zipEntry->getName())); |
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} |
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1 |
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return $this->stream; |
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1 |
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} |
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/** |
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* @return string returns data as string |
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*/ |
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public function getDataAsString() |
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{ |
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$stream = $this->getDataAsStream(); |
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$pos = ftell($stream); |
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1 |
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try { |
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rewind($stream); |
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1 |
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return stream_get_contents($stream); |
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} finally { |
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fseek($stream, $pos); |
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} |
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} |
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/** |
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* @param resource $outStream |
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*/ |
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public function copyDataToStream($outStream) |
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{ |
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$stream = $this->getDataAsStream(); |
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rewind($stream); |
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stream_copy_to_stream($stream, $outStream); |
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} |
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/** |
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* @see https://php.net/manual/en/language.oop5.cloning.php |
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*/ |
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public function __clone() |
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{ |
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$resourceId = (int) $this->stream; |
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self::$guardClonedStream[$resourceId] = |
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isset(self::$guardClonedStream[$resourceId]) ? |
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self::$guardClonedStream[$resourceId] + 1 : |
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1; |
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} |
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/** |
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* The stream will be closed when closing the zip archive. |
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* |
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* The method implements protection against closing the stream of the cloned object. |
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* |
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* @see ZipFile::close() |
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*/ |
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public function __destruct() |
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{ |
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$resourceId = (int) $this->stream; |
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if (isset(self::$guardClonedStream[$resourceId]) && self::$guardClonedStream[$resourceId] > 0) { |
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self::$guardClonedStream[$resourceId]--; |
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return; |
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} |
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if (\is_resource($this->stream)) { |
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fclose($this->stream); |
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} |
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} |
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} |
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Ne-Lexa /
php-zip
