URLSafeTransport.php

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<?php

namespace ILIAS\FileDelivery\Token\Transport;

class URLSafeTransport implements Transport
{
    public function prepareForTransport(string $compressed_token): string
    {
        return rtrim(str_replace(['+', '/'], ['-', '_'], base64_encode($compressed_token)), '=');
    }

    public function readFromTransport(string $compressed_token): string
    {
        return base64_decode(str_replace(['-', '_'], ['+', '/'], $compressed_token . '=='));
    }
}