File.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\WebDAV\Entity;
 
use Sabre\DAV\IFile;
use ILIAS\WebDAV\DataCheck;
 
class File extends BaseEntity implements IFile, Entity
{
    use DataCheck;
 
    private function generateEtag(mixed $data = null): ?string
    {
        try {
            if (is_resource($data)) {
                $data = stream_get_contents($data);
            }
 
            $data = $data ??
                $this->object_proxy !== null
                ? $this->object_proxy->getStreamHandler()->get()->getContents()
                : null; // maybe to much?
 
            if (empty($data)) {
                return null;
            }
 
            return '"' . md5((string) $data) . '"';
        } catch (\Throwable $e) {
            return null;
        }
    }
 
    public function put(mixed $data): ?string
    {
        $title = $this->getName();
        $is_empty = $this->isEmpty($data);
        $this->getObjectProxy()
             ?->getStreamHandler()
             ?->put(
                 $title,
                 $data,
                 !$is_empty
             );
 
        return $this->generateEtag($data);
    }
 
    public function get(): mixed
    {
        return $this->getObjectProxy()?->getStreamHandler()?->get()?->detach();
    }
 
    public function getContentType(): ?string
    {
        return $this->object_proxy?->getContentType();
    }
 
    public function getETag(): ?string
    {
        return $this->generateEtag();
    }
 
    public function getSize(): ?int
    {
        return $this->object_proxy?->getSize();
    }
 
}