UploadLimitResolver.php

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<?php

declare(strict_types=1);

namespace ILIAS\UI\Implementation\Component\Input;

use ILIAS\UI\Component\Input\Field\UploadHandler;
use ILIAS\UI\Component\Input\Field\PhpUploadLimit;
use ILIAS\UI\Component\Input\Field\GlobalUploadLimit;

class UploadLimitResolver
{
    public function __construct(
        protected PhpUploadLimit $php_upload_limit,
        protected GlobalUploadLimit $global_upload_limit
    ) {
    }

    public function getBestPossibleUploadLimitInBytes(
        UploadHandler $upload_handler,
        ?int $local_limit_in_bytes = null
    ): int {
        if (null !== $local_limit_in_bytes && $this->canUploadLimitBeUsed($upload_handler, $local_limit_in_bytes)) {
            return $local_limit_in_bytes;
        }

        $global_upload_limit_in_bytes = $this->global_upload_limit->getGlobalUploadLimitInBytes();

        if (null !== $global_upload_limit_in_bytes &&
            $this->canUploadLimitBeUsed($upload_handler, $global_upload_limit_in_bytes)
        ) {
            return $global_upload_limit_in_bytes;
        }

        return $this->getPhpUploadLimitInBytes();
    }

    public function getPhpUploadLimitInBytes(): int
    {
        return $this->php_upload_limit->getPhpUploadLimitInBytes();
    }

    protected function canUploadLimitBeUsed(UploadHandler $upload_handler, ?int $limit_in_bytes): bool
    {
        if ($upload_handler->supportsChunkedUploads()) {
            return true;
        }

        return $limit_in_bytes <= $this->getPhpUploadLimitInBytes();
    }
}