TYPO3 T3D uncompress / extract / deflate / extrahieren / entpacken

t3d.php

<?php
# Execute:
# php -d memory_limit=2G t3d.php file.t3d > output.txt
$fd = fopen($argv[1], 'rb');

function getNextFilePart($fd, $unserialize = false, $name = '') {
    $headerLength = 32 + 1 + 1 + 1 + 10 + 1;
    $headerString = fread($fd, $headerLength);
    if (empty($headerString)) {
        echo 'File does not contain data for "' . $name . '"';
        return null;
    }

    $header = explode(':', $headerString);
        if (str_contains($header[0], 'Warning')) {
            echo('File read error: Warning message in file. (' . $headerString . fgets($fd) . ')');
            return null;
        }
        if ((string)$header[3] !== '') {
            echo('File read error: InitString had a wrong length. (' . $name . ')');
            return null;
        }

        $dataString = (string)fread($fd, (int)$header[2]);
        $isDataCompressed = $header[1] === '1';
        fread($fd, 1);
        if (!hash_equals($header[0], md5($dataString))) {
            echo ('MD5 check failed (' . $name . ')');
            return null;
        }

        if ($isDataCompressed) {
            if (function_exists('gzuncompress')) {
                $dataString = (string)gzuncompress($dataString);
            } else {
                echo('Content read error: This file requires decompression, ' .
                    'but this server does not offer gzcompress()/gzuncompress() functions.');
                return null;
            }
        }

        return $unserialize ? unserialize($dataString, ['allowed_classes' => false]) : $dataString;
}

$dat['header']    = getNextFilePart($fd, true, 'header');
$dat['records']   = getNextFilePart($fd, true, 'records');
$dat['files']     = getNextFilePart($fd, true, 'files');
$dat['files_fal'] = getNextFilePart($fd, true, 'files_fal');

print_r($dat);