web-base/core/External/ZipStream/FileStream.class.php
2021-12-08 16:54:53 +01:00

46 lines
1011 B
PHP

<?php
namespace External\ZipStream {
use HashContext;
use Objects\AesStream;
class FileStream extends File {
private AesStream $stream;
private HashContext $crc32ctx;
private HashContext $sha256ctx;
public function __construct(AesStream $stream, string $name) {
parent::__construct($name);
$this->stream = $stream;
$this->crc32ctx = hash_init('crc32b');
$this->sha256ctx = hash_init('sha256');
}
public function getStream(): AesStream {
return $this->stream;
}
public function finalize() {
$this->crc32 = hash_final($this->crc32ctx, true);
$this->sha256 = hash_final($this->sha256ctx);
return $this->compress(null);
}
public function processChunk($chunk) {
hash_update($this->crc32ctx, $chunk);
hash_update($this->sha256ctx, $chunk);
$this->fileSize += strlen($chunk);
if ($this->useCompression) {
$chunk = $this->compress($chunk);
}
return $chunk;
}
}
}