class.UploadHandlerGUI.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\User\Settings\NewAccountMail;
 
use ILIAS\ResourceStorage\Services as ResourceStorage;
use ILIAS\FileUpload\Handler\AbstractCtrlAwareUploadHandler;
use ILIAS\FileUpload\Handler\BasicFileInfoResult;
use ILIAS\FileUpload\Handler\BasicHandlerResult;
use ILIAS\FileUpload\Handler\FileInfoResult;
use ILIAS\FileUpload\Handler\HandlerResult;
use ILIAS\FileUpload\DTO\UploadResult;
 
class UploadHandlerGUI extends AbstractCtrlAwareUploadHandler
{
    public function __construct(
        private readonly ResourceStorage $storage,
        private readonly Stakeholder $stakeholder
    ) {
 
        parent::__construct();
    }
 
    protected function getUploadResult(): HandlerResult
    {
        $this->upload->process();
 
        $result_array = $this->upload->getResults();
        $result = end($result_array);
 
        if (!($result instanceof UploadResult) || !$result->isOK()) {
            return new BasicHandlerResult(
                $this->getFileIdentifierParameterName(),
                HandlerResult::STATUS_FAILED,
                '',
                $result->getStatus()->getMessage()
            );
        }
 
        return new BasicHandlerResult(
            $this->getFileIdentifierParameterName(),
            HandlerResult::STATUS_OK,
            $this->storage->manage()->upload($result, $this->stakeholder)->serialize(),
            'file upload OK'
        );
    }
 
    protected function getRemoveResult(string $identifier): HandlerResult
    {
        return new BasicHandlerResult(
            $this->getFileIdentifierParameterName(),
            HandlerResult::STATUS_OK,
            $identifier,
            'We just don\'t do anything here.'
        );
    }
 
    public function getInfoResult(string $identifier): ?FileInfoResult
    {
        $title = $mime = 'unknown';
        $size = 0;
        if (($id = $this->storage->manage()->find($identifier)) !== null) {
            $revision = $this->storage->manage()->getCurrentRevision($id)->getInformation();
            $title = $revision->getTitle();
            $size = $revision->getSize();
            $mime = $revision->getMimeType();
        }
 
        return new BasicFileInfoResult(
            $this->getFileIdentifierParameterName(),
            $identifier,
            $title,
            $size,
            $mime
        );
    }
 
    public function getInfoForExistingFiles(array $file_ids): array
    {
        $info_results = [];
        foreach ($file_ids as $identifier) {
            $info_results[] = $this->getInfoResult($identifier);
        }
 
        return $info_results;
    }
}