GeneralUtility.php

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<?php
 
declare(strict_types=1);
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Core\Utility;
 
use Egulias\EmailValidator\EmailValidator;
use Egulias\EmailValidator\Validation\EmailValidation;
use Egulias\EmailValidator\Validation\MultipleValidationWithAnd;
use Egulias\EmailValidator\Validation\RFCValidation;
use GuzzleHttp\Exception\RequestException;
use Psr\Container\ContainerInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Log\LoggerAwareInterface;
use Psr\Log\LoggerInterface;
use ‪TYPO3\CMS\Core\Authentication\AbstractAuthenticationService;
use ‪TYPO3\CMS\Core\Cache\CacheManager;
use ‪TYPO3\CMS\Core\Core\ClassLoadingInformation;
use ‪TYPO3\CMS\Core\Core\Environment;
use ‪TYPO3\CMS\Core\Http\ApplicationType;
use ‪TYPO3\CMS\Core\Http\RequestFactory;
use ‪TYPO3\CMS\Core\Log\LogManager;
use ‪TYPO3\CMS\Core\Package\Exception as ‪PackageException;
use ‪TYPO3\CMS\Core\SingletonInterface;
 
class ‪GeneralUtility
{
    protected static ?ContainerInterface ‪$container = null;
 
    protected static array ‪$singletonInstances = [];
 
    protected static array ‪$nonSingletonInstances = [];
 
    protected static array ‪$finalClassNameCache = [];
 
    protected static array ‪$indpEnvCache = [];
 
    final private function ‪__construct()
    {
    }
 
    /*************************
     *
     * GET/POST Variables
     *
     * Background:
     * Input GET/POST variables in PHP may have their quotes escaped with "\" or not depending on configuration.
     * TYPO3 has always converted quotes to BE escaped if the configuration told that they would not be so.
     * But the clean solution is that quotes are never escaped and that is what the functions below offers.
     * Eventually TYPO3 should provide this in the global space as well.
     * In the transitional phase (or forever..?) we need to encourage EVERY to read and write GET/POST vars through the API functions below.
     * This functionality was previously needed to normalize between magic quotes logic, which was removed from PHP 5.4,
     * so these methods are still in use, but not tackle the slash problem anymore.
     *
     *************************/
    public static function ‪_GP($var)
    {
        trigger_error(
            'GeneralUtility::_GP() will be removed in TYPO3 v13.0, retrieve request related' .
            ' details from PSR-7 ServerRequestInterface instead.',
            E_USER_DEPRECATED
        );
        if (empty($var)) {
            return;
        }
 
        $value = $_POST[$var] ?? $_GET[$var] ?? null;
 
        // This is there for backwards-compatibility, in order to avoid NULL
        if (isset($value) && !is_array($value)) {
            $value = (string)$value;
        }
        return $value;
    }
 
    public static function ‪_GPmerged($parameter)
    {
        trigger_error(
            'GeneralUtility::_GPmerged() will be removed in TYPO3 v13.0, retrieve request related' .
            ' details from PSR-7 ServerRequestInterface instead.',
            E_USER_DEPRECATED
        );
        $postParameter = isset($_POST[$parameter]) && is_array($_POST[$parameter]) ? $_POST[$parameter] : [];
        $getParameter = isset($_GET[$parameter]) && is_array($_GET[$parameter]) ? $_GET[$parameter] : [];
        $mergedParameters = $getParameter;
        ArrayUtility::mergeRecursiveWithOverrule($mergedParameters, $postParameter);
        return $mergedParameters;
    }
 
    public static function ‪_GET($var = null)
    {
        $value = $var === null
            ? $_GET
            : (empty($var) ? null : ($_GET[$var] ?? null));
        // This is there for backwards-compatibility, in order to avoid NULL
        if (isset($value) && !is_array($value)) {
            $value = (string)$value;
        }
        return $value;
    }
 
    public static function ‪_POST($var = null)
    {
        trigger_error(
            'GeneralUtility::_POST() will be removed in TYPO3 v13.0, retrieve request related' .
            ' details from PSR-7 ServerRequestInterface instead.',
            E_USER_DEPRECATED
        );
        $value = $var === null ? $_POST : (empty($var) || !isset($_POST[$var]) ? null : $_POST[$var]);
        // This is there for backwards-compatibility, in order to avoid NULL
        if (isset($value) && !is_array($value)) {
            $value = (string)$value;
        }
        return $value;
    }
 
    /*************************
     *
     * STRING FUNCTIONS
     *
     *************************/
    public static function ‪fixed_lgd_cs(string $string, int $chars, string $appendString = '...'): string
    {
        if ($chars === 0 || mb_strlen($string, 'utf-8') <= abs($chars)) {
            return $string;
        }
        if ($chars > 0) {
            $string = mb_substr($string, 0, $chars, 'utf-8') . $appendString;
        } else {
            $string = $appendString . mb_substr($string, $chars, mb_strlen($string, 'utf-8'), 'utf-8');
        }
        return $string;
    }
 
    public static function ‪cmpIP($baseIP, $list): bool
    {
        $list = trim($list);
        if ($list === '') {
            return false;
        }
        if ($list === '*') {
            return true;
        }
        if (str_contains($baseIP, ':') && self::validIPv6($baseIP)) {
            return ‪self::cmpIPv6($baseIP, $list);
        }
        return ‪self::cmpIPv4($baseIP, $list);
    }
 
    public static function ‪cmpIPv4($baseIP, $list): bool
    {
        $IPpartsReq = explode('.', $baseIP);
        if (count($IPpartsReq) === 4) {
            $values = ‪self::trimExplode(',', $list, true);
            foreach ($values as $test) {
                $testList = explode('/', $test);
                if (count($testList) === 2) {
                    [$test, $mask] = $testList;
                } else {
                    $mask = false;
                }
                if ((int)$mask) {
                    $mask = (int)$mask;
                    // "192.168.3.0/24"
                    $lnet = (int)ip2long($test);
                    $lip = (int)ip2long($baseIP);
                    $binnet = str_pad(decbin($lnet), 32, '0', STR_PAD_LEFT);
                    $firstpart = substr($binnet, 0, $mask);
                    $binip = str_pad(decbin($lip), 32, '0', STR_PAD_LEFT);
                    $firstip = substr($binip, 0, $mask);
                    $yes = $firstpart === $firstip;
                } else {
                    // "192.168.*.*"
                    $IPparts = explode('.', $test);
                    $yes = 1;
                    foreach ($IPparts as $index => $val) {
                        $val = trim($val);
                        if ($val !== '*' && $IPpartsReq[$index] !== $val) {
                            $yes = 0;
                        }
                    }
                }
                if ($yes) {
                    return true;
                }
            }
        }
        return false;
    }
 
    public static function ‪cmpIPv6($baseIP, $list): bool
    {
        // Policy default: Deny connection
        $success = false;
        $baseIP = ‪self::normalizeIPv6($baseIP);
        $values = ‪self::trimExplode(',', $list, true);
        foreach ($values as $test) {
            $testList = explode('/', $test);
            if (count($testList) === 2) {
                [$test, $mask] = $testList;
            } else {
                $mask = false;
            }
            if (self::validIPv6($test)) {
                $test = ‪self::normalizeIPv6($test);
                $maskInt = (int)$mask ?: 128;
                // Special case; /0 is an allowed mask - equals a wildcard
                if ($mask === '0') {
                    $success = true;
                } elseif ($maskInt == 128) {
                    $success = $test === $baseIP;
                } else {
                    $testBin = (string)inet_pton($test);
                    $baseIPBin = (string)inet_pton($baseIP);
 
                    $success = true;
                    // Modulo is 0 if this is a 8-bit-boundary
                    $maskIntModulo = $maskInt % 8;
                    $numFullCharactersUntilBoundary = (int)($maskInt / 8);
                    $substring = (string)substr($baseIPBin, 0, $numFullCharactersUntilBoundary);
                    if (!str_starts_with($testBin, $substring)) {
                        $success = false;
                    } elseif ($maskIntModulo > 0) {
                        // If not an 8-bit-boundary, check bits of last character
                        $testLastBits = str_pad(decbin(ord(substr($testBin, $numFullCharactersUntilBoundary, 1))), 8, '0', STR_PAD_LEFT);
                        $baseIPLastBits = str_pad(decbin(ord(substr($baseIPBin, $numFullCharactersUntilBoundary, 1))), 8, '0', STR_PAD_LEFT);
                        if (strncmp($testLastBits, $baseIPLastBits, $maskIntModulo) != 0) {
                            $success = false;
                        }
                    }
                }
            }
            if ($success) {
                return true;
            }
        }
        return false;
    }
 
    public static function ‪normalizeIPv6($address): string
    {
        $normalizedAddress = '';
        // According to RFC lowercase-representation is recommended
        $address = strtolower($address);
        // Normalized representation has 39 characters (0000:0000:0000:0000:0000:0000:0000:0000)
        if (strlen($address) === 39) {
            // Already in full expanded form
            return $address;
        }
        // Count 2 if if address has hidden zero blocks
        $chunks = explode('::', $address);
        if (count($chunks) === 2) {
            $chunksLeft = explode(':', $chunks[0]);
            $chunksRight = explode(':', $chunks[1]);
            $left = count($chunksLeft);
            $right = count($chunksRight);
            // Special case: leading zero-only blocks count to 1, should be 0
            if ($left === 1 && strlen($chunksLeft[0]) === 0) {
                $left = 0;
            }
            $hiddenBlocks = 8 - ($left + $right);
            $hiddenPart = '';
            $h = 0;
            while ($h < $hiddenBlocks) {
                $hiddenPart .= '0000:';
                $h++;
            }
            if ($left === 0) {
                $stageOneAddress = $hiddenPart . $chunks[1];
            } else {
                $stageOneAddress = $chunks[0] . ':' . $hiddenPart . $chunks[1];
            }
        } else {
            $stageOneAddress = $address;
        }
        // Normalize the blocks:
        $blocks = explode(':', $stageOneAddress);
        $divCounter = 0;
        foreach ($blocks as $block) {
            $tmpBlock = '';
            $i = 0;
            $hiddenZeros = 4 - strlen($block);
            while ($i < $hiddenZeros) {
                $tmpBlock .= '0';
                $i++;
            }
            $normalizedAddress .= $tmpBlock . $block;
            if ($divCounter < 7) {
                $normalizedAddress .= ':';
                $divCounter++;
            }
        }
        return $normalizedAddress;
    }
 
    public static function ‪validIP($ip): bool
    {
        return filter_var($ip, FILTER_VALIDATE_IP) !== false;
    }
 
    public static function ‪validIPv4($ip): bool
    {
        return filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) !== false;
    }
 
    public static function ‪validIPv6($ip): bool
    {
        return filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) !== false;
    }
 
    public static function ‪cmpFQDN($baseHost, $list)
    {
        $baseHost = trim($baseHost);
        if (empty($baseHost)) {
            return false;
        }
        if (self::validIPv4($baseHost) || self::validIPv6($baseHost)) {
            // Resolve hostname
            // Note: this is reverse-lookup and can be randomly set as soon as somebody is able to set
            // the reverse-DNS for his IP (security when for example used with REMOTE_ADDR)
            $baseHostName = (string)gethostbyaddr($baseHost);
            if ($baseHostName === $baseHost) {
                // Unable to resolve hostname
                return false;
            }
        } else {
            $baseHostName = $baseHost;
        }
        $baseHostNameParts = explode('.', $baseHostName);
        $values = ‪self::trimExplode(',', $list, true);
        foreach ($values as $test) {
            $hostNameParts = explode('.', $test);
            // To match hostNameParts can only be shorter (in case of wildcards) or equal
            $hostNamePartsCount = count($hostNameParts);
            $baseHostNamePartsCount = count($baseHostNameParts);
            if ($hostNamePartsCount > $baseHostNamePartsCount) {
                continue;
            }
            $yes = true;
            foreach ($hostNameParts as $index => $val) {
                $val = trim($val);
                if ($val === '*') {
                    // Wildcard valid for one or more hostname-parts
                    $wildcardStart = $index + 1;
                    // Wildcard as last/only part always matches, otherwise perform recursive checks
                    if ($wildcardStart < $hostNamePartsCount) {
                        $wildcardMatched = false;
                        $tempHostName = implode('.', array_slice($hostNameParts, $index + 1));
                        while ($wildcardStart < $baseHostNamePartsCount && !$wildcardMatched) {
                            $tempBaseHostName = implode('.', array_slice($baseHostNameParts, $wildcardStart));
                            $wildcardMatched = ‪self::cmpFQDN($tempBaseHostName, $tempHostName);
                            $wildcardStart++;
                        }
                        if ($wildcardMatched) {
                            // Match found by recursive compare
                            return true;
                        }
                        $yes = false;
                    }
                } elseif ($baseHostNameParts[$index] !== $val) {
                    // In case of no match
                    $yes = false;
                }
            }
            if ($yes) {
                return true;
            }
        }
        return false;
    }
 
    public static function ‪isOnCurrentHost(‪$url)
    {
        return stripos(‪$url . '/', self::getIndpEnv('TYPO3_REQUEST_HOST') . '/') === 0;
    }
 
    public static function ‪inList($list, $item)
    {
        return str_contains(',' . $list . ',', ',' . $item . ',');
    }
 
    public static function ‪expandList($list)
    {
        $items = explode(',', $list);
        $list = [];
        foreach ($items as $item) {
            $range = explode('-', $item);
            if (isset($range[1])) {
                $runAwayBrake = 1000;
                for ($n = $range[0]; $n <= $range[1]; $n++) {
                    $list[] = $n;
                    $runAwayBrake--;
                    if ($runAwayBrake <= 0) {
                        break;
                    }
                }
            } else {
                $list[] = $item;
            }
        }
        return implode(',', $list);
    }
 
    public static function ‪md5int($str)
    {
        return hexdec(substr(md5($str), 0, 7));
    }
 
    public static function ‪hmac($input, $additionalSecret = '')
    {
        $hashAlgorithm = 'sha1';
        $secret = ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['encryptionKey'] . $additionalSecret;
        return hash_hmac($hashAlgorithm, $input, $secret);
    }
 
    public static function split_fileref($fileNameWithPath)
    {
        $info = [];
        $reg = [];
        if (preg_match('/(.*\\/)(.*)$/', $fileNameWithPath, $reg)) {
            $info['path'] = $reg[1];
            $info['file'] = $reg[2];
        } else {
            $info['path'] = '';
            $info['file'] = $fileNameWithPath;
        }
        $reg = '';
        // If open_basedir is set and the fileName was supplied without a path the is_dir check fails
        if (!is_dir($fileNameWithPath) && preg_match('/(.*)\\.([^\\.]*$)/', $info['file'], $reg)) {
            $info['filebody'] = $reg[1];
            $info['fileext'] = strtolower($reg[2]);
            $info['realFileext'] = $reg[2];
        } else {
            $info['filebody'] = $info['file'];
            $info['fileext'] = '';
        }
        reset($info);
        return $info;
    }
 
    public static function dirname($path)
    {
        $p = ‪self::revExplode('/', $path, 2);
        return count($p) === 2 ? $p[0] : '';
    }
 
    public static function formatSize(‪$sizeInBytes, $labels = '', $base = 0)
    {
        $defaultFormats = [
            'iec' => ['base' => 1024, 'labels' => [' ', ' Ki', ' Mi', ' Gi', ' Ti', ' Pi', ' Ei', ' Zi', ' Yi']],
            'si' => ['base' => 1000, 'labels' => [' ', ' k', ' M', ' G', ' T', ' P', ' E', ' Z', ' Y']],
        ];
        // Set labels and base:
        if (empty($labels)) {
            $labels = 'iec';
        }
        if (isset($defaultFormats[$labels])) {
            $base = $defaultFormats[$labels]['base'];
            ‪$labelArr = $defaultFormats[$labels]['labels'];
        } else {
            $base = (int)$base;
            if ($base !== 1000 && $base !== 1024) {
                $base = 1024;
            }
            ‪$labelArr = explode('|', str_replace('"', '', $labels));
        }
        // This is set via Site Handling and in the Locales class via setlocale()
        ‪$localeInfo = localeconv();
        ‪$sizeInBytes = max(‪$sizeInBytes, 0);
        ‪$multiplier = floor((‪$sizeInBytes ? log(‪$sizeInBytes) : 0) / log($base));
        ‪$sizeInUnits = ‪$sizeInBytes / $base ** ‪$multiplier;
        if (‪$sizeInUnits > ($base * .9)) {
            ‪$multiplier++;
        }
        ‪$multiplier = min(‪$multiplier, count(‪$labelArr) - 1);
        ‪$sizeInUnits = ‪$sizeInBytes / $base ** ‪$multiplier;
        return number_format(‪$sizeInUnits, ((‪$multiplier > 0) && (‪$sizeInUnits < 20)) ? 2 : 0, ‪$localeInfo['decimal_point'], '') . ‪$labelArr[‪$multiplier];
    }
 
    public static function splitCalc($string, $operators)
    {
        $res = [];
        $sign = '+';
        while ($string) {
            $valueLen = strcspn($string, $operators);
            $value = substr($string, 0, $valueLen);
            $res[] = [$sign, trim($value)];
            $sign = substr($string, $valueLen, 1);
            $string = substr($string, $valueLen + 1);
        }
        reset($res);
        return $res;
    }
 
    public static function validEmail($email)
    {
        // Early return in case input is not a string
        if (!is_string($email)) {
            return false;
        }
        if (trim($email) !== $email) {
            return false;
        }
        if (!str_contains($email, '@')) {
            return false;
        }
        $validators = [];
        foreach (‪$GLOBALS['TYPO3_CONF_VARS']['MAIL']['validators'] ?? [RFCValidation::class] as $className) {
            ‪$validator = new $className();
            if (‪$validator instanceof EmailValidation) {
                $validators[] = ‪$validator;
            }
        }
        return (new EmailValidator())->isValid($email, new MultipleValidationWithAnd($validators, MultipleValidationWithAnd::STOP_ON_ERROR));
    }
 
    public static function ‪underscoredToUpperCamelCase($string)
    {
        return str_replace(' ', '', ucwords(str_replace('_', ' ', strtolower($string))));
    }
 
    public static function ‪underscoredToLowerCamelCase($string)
    {
        return lcfirst(str_replace(' ', '', ucwords(str_replace('_', ' ', strtolower($string)))));
    }
 
    public static function ‪camelCaseToLowerCaseUnderscored($string)
    {
        $value = preg_replace('/(?<=\\w)([A-Z])/', '_\\1', $string) ?? '';
        return mb_strtolower($value, 'utf-8');
    }
 
    public static function ‪isValidUrl(‪$url)
    {
        $parsedUrl = parse_url(‪$url);
        if (!$parsedUrl || !isset($parsedUrl['scheme'])) {
            return false;
        }
        // HttpUtility::buildUrl() will always build urls with <scheme>://
        // our original $url might only contain <scheme>: (e.g. mail:)
        // so we convert that to the double-slashed version to ensure
        // our check against the $recomposedUrl is proper
        if (!str_starts_with(‪$url, $parsedUrl['scheme'] . '://')) {
            ‪$url = str_replace($parsedUrl['scheme'] . ':', $parsedUrl['scheme'] . '://', ‪$url);
        }
        $recomposedUrl = ‪HttpUtility::buildUrl($parsedUrl);
        if ($recomposedUrl !== ‪$url) {
            // The parse_url() had to modify characters, so the URL is invalid
            return false;
        }
        if (isset($parsedUrl['host']) && !preg_match('/^[a-z0-9.\\-]*$/i', $parsedUrl['host'])) {
            $host = idn_to_ascii($parsedUrl['host']);
            if ($host === false) {
                return false;
            }
            $parsedUrl['host'] = $host;
        }
        return filter_var(‪HttpUtility::buildUrl($parsedUrl), FILTER_VALIDATE_URL) !== false;
    }
 
    /*************************
     *
     * ARRAY FUNCTIONS
     *
     *************************/
 
    public static function ‪intExplode($delimiter, $string, $removeEmptyValues = false, $limit = 0)
    {
        $result = explode($delimiter, $string);
        foreach ($result as $key => &$value) {
            if ($removeEmptyValues && trim($value) === '') {
                unset($result[$key]);
            } else {
                $value = (int)$value;
            }
        }
        unset($value);
        if ($limit !== 0) {
            trigger_error('The parameter $limit will be removed from ' . __METHOD__ . ' in TYPO3 v13.0.', E_USER_DEPRECATED);
 
            if ($limit < 0) {
                $result = array_slice($result, 0, $limit);
            } elseif (count($result) > $limit) {
                $lastElements = array_slice($result, $limit - 1);
                $result = array_slice($result, 0, $limit - 1);
                $result[] = implode($delimiter, $lastElements);
            }
        }
        return $result;
    }
 
    public static function ‪revExplode($delimiter, $string, $limit = 0)
    {
        // 2 is the (currently, as of 2014-02) most-used value for `$limit` in the core, therefore we check it first
        if ($limit === 2) {
            $position = strrpos($string, strrev($delimiter));
            if ($position !== false) {
                return [substr($string, 0, $position), substr($string, $position + strlen($delimiter))];
            }
            return [$string];
        }
        if ($limit <= 1) {
            return [$string];
        }
        $explodedValues = explode($delimiter, strrev($string), $limit);
        $explodedValues = array_map(strrev(...), $explodedValues);
        return array_reverse($explodedValues);
    }
 
    public static function ‪trimExplode($delim, $string, $removeEmptyValues = false, $limit = 0): array
    {
        $result = explode($delim, (string)$string);
        if ($removeEmptyValues) {
            // Remove items that are just whitespace, but leave whitespace intact for the rest.
            $result = array_values(array_filter($result, static fn (string $item): bool => trim($item) !== ''));
        }
 
        if ($limit === 0) {
            // Return everything.
            return array_map(trim(...), $result);
        }
 
        if ($limit < 0) {
            // Trim and return just the first $limit elements and ignore the rest.
            return array_map(trim(...), array_slice($result, 0, $limit));
        }
 
        // Fold the last length - $limit elements into a single trailing item, then trim and return the result.
        $tail = array_slice($result, $limit - 1);
        $result = array_slice($result, 0, $limit - 1);
        if ($tail) {
            $result[] = implode($delim, $tail);
        }
        return array_map(trim(...), $result);
    }
 
    public static function ‪implodeArrayForUrl($name, array $theArray, $str = '', $skipBlank = false, $rawurlencodeParamName = false)
    {
        foreach ($theArray as $Akey => $AVal) {
            $thisKeyName = $name ? $name . '[' . $Akey . ']' : $Akey;
            if (is_array($AVal)) {
                $str = ‪self::implodeArrayForUrl($thisKeyName, $AVal, $str, $skipBlank, $rawurlencodeParamName);
            } else {
                $stringValue = (string)$AVal;
                if (!$skipBlank || $stringValue !== '') {
                    $parameterName = $rawurlencodeParamName ? rawurlencode($thisKeyName) : $thisKeyName;
                    $parameterValue = rawurlencode($stringValue);
                    $str .= '&' . $parameterName . '=' . $parameterValue;
                }
            }
        }
        return $str;
    }
 
    public static function explodeUrl2Array($string)
    {
        ‪$output = [];
        $p = explode('&', $string);
        foreach ($p as $v) {
            if ($v !== '') {
                $nameAndValue = explode('=', $v, 2);
                ‪$output[rawurldecode($nameAndValue[0])] = isset($nameAndValue[1]) ? rawurldecode($nameAndValue[1]) : '';
            }
        }
        return ‪$output;
    }
 
    public static function removeDotsFromTS(array $ts): array
    {
        $out = [];
        foreach ($ts as $key => $value) {
            if (is_array($value)) {
                $key = rtrim($key, '.');
                $out[$key] = self::removeDotsFromTS($value);
            } else {
                $out[$key] = $value;
            }
        }
        return $out;
    }
 
    /*************************
     *
     * HTML/XML PROCESSING
     *
     *************************/
    public static function get_tag_attributes($tag, bool $decodeEntities = false)
    {
        $components = self::split_tag_attributes($tag);
        // Attribute name is stored here
        $name = '';
        $valuemode = false;
        $attributes = [];
        foreach ($components as $key => $val) {
            // Only if $name is set (if there is an attribute, that waits for a value), that valuemode is enabled. This ensures that the attribute is assigned it's value
            if ($val !== '=') {
                if ($valuemode) {
                    if ($name) {
                        $attributes[$name] = $decodeEntities ? htmlspecialchars_decode($val) : $val;
                        $name = '';
                    }
                } else {
                    if ($key = strtolower(preg_replace('/[^[:alnum:]_\\:\\-]/', '', $val) ?? '')) {
                        $attributes[$key] = '';
                        $name = $key;
                    }
                }
                $valuemode = false;
            } else {
                $valuemode = true;
            }
        }
        return $attributes;
    }
 
    public static function split_tag_attributes($tag)
    {
        $tag_tmp = trim(preg_replace('/^<[^[:space:]]*/', '', trim($tag)) ?? '');
        // Removes any > in the end of the string
        $tag_tmp = trim(rtrim($tag_tmp, '>'));
        $value = [];
        // Compared with empty string instead , 030102
        while ($tag_tmp !== '') {
            $firstChar = $tag_tmp[0];
            if ($firstChar === '"' || $firstChar === '\'') {
                $reg = explode($firstChar, $tag_tmp, 3);
                $value[] = $reg[1];
                $tag_tmp = trim($reg[2] ?? '');
            } elseif ($firstChar === '=') {
                $value[] = '=';
                // Removes = chars.
                $tag_tmp = trim(substr($tag_tmp, 1));
            } else {
                // There are '' around the value. We look for the next ' ' or '>'
                $reg = preg_split('/[[:space:]=]/', $tag_tmp, 2);
                $value[] = trim($reg[0]);
                $tag_tmp = trim(substr($tag_tmp, strlen($reg[0]), 1) . ($reg[1] ?? ''));
            }
        }
        reset($value);
        return $value;
    }
 
    public static function implodeAttributes(array $arr, $xhtmlSafe = false, $keepBlankAttributes = false)
    {
        if ($xhtmlSafe) {
            $newArr = [];
            foreach ($arr as $attributeName => $attributeValue) {
                $attributeName = strtolower($attributeName);
                if (!isset($newArr[$attributeName])) {
                    $newArr[$attributeName] = htmlspecialchars((string)$attributeValue);
                }
            }
            $arr = $newArr;
        }
        $list = [];
        foreach ($arr as $attributeName => $attributeValue) {
            if ((string)$attributeValue !== '' || $keepBlankAttributes) {
                $list[] = $attributeName . '="' . $attributeValue . '"';
            }
        }
        return implode(' ', $list);
    }
 
    public static function wrapJS(string $string, array $attributes = [])
    {
        if (trim($string)) {
            // remove nl from the beginning
            $string = ltrim($string, LF);
            // re-ident to one tab using the first line as reference
            $match = [];
            if (preg_match('/^(\\t+)/', $string, $match)) {
                $string = str_replace($match[1], "\t", $string);
            }
            return '<script ' . GeneralUtility::implodeAttributes($attributes, true) . '>
/*<![CDATA[*/
' . $string . '
/*]]>*/
</script>';
        }
        return '';
    }
 
    public static function xml2tree($string, $depth = 999, $parserOptions = [])
    {
        ‪$parser = xml_parser_create();
        $vals = [];
        $index = [];
        xml_parser_set_option(‪$parser, XML_OPTION_CASE_FOLDING, 0);
        xml_parser_set_option(‪$parser, XML_OPTION_SKIP_WHITE, 0);
        foreach ($parserOptions as $option => $value) {
            xml_parser_set_option(‪$parser, $option, $value);
        }
        xml_parse_into_struct(‪$parser, $string, $vals, $index);
        if (xml_get_error_code(‪$parser)) {
            return 'Line ' . xml_get_current_line_number(‪$parser) . ': ' . xml_error_string(xml_get_error_code(‪$parser));
        }
        xml_parser_free(‪$parser);
        $stack = [[]];
        $stacktop = 0;
        $startPoint = 0;
        $tagi = [];
        foreach ($vals as $key => $val) {
            $type = $val['type'];
            // open tag:
            if ($type === 'open' || $type === 'complete') {
                $stack[$stacktop++] = $tagi;
                if ($depth == $stacktop) {
                    $startPoint = $key;
                }
                $tagi = ['tag' => $val['tag']];
                if (isset($val['attributes'])) {
                    $tagi['attrs'] = $val['attributes'];
                }
                if (isset($val['value'])) {
                    $tagi['values'][] = $val['value'];
                }
            }
            // finish tag:
            if ($type === 'complete' || $type === 'close') {
                $oldtagi = $tagi;
                $tagi = $stack[--$stacktop];
                $oldtag = $oldtagi['tag'];
                unset($oldtagi['tag']);
                if ($depth == $stacktop + 1) {
                    if ($key - $startPoint > 0) {
                        $partArray = array_slice($vals, $startPoint + 1, $key - $startPoint - 1);
                        $oldtagi['XMLvalue'] = ‪self::xmlRecompileFromStructValArray($partArray);
                    } else {
                        $oldtagi['XMLvalue'] = $oldtagi['values'][0];
                    }
                }
                $tagi['ch'][$oldtag][] = $oldtagi;
                unset($oldtagi);
            }
            // cdata
            if ($type === 'cdata') {
                $tagi['values'][] = $val['value'];
            }
        }
        return $tagi['ch'];
    }
 
    public static function array2xml(array $array, $NSprefix = '', $level = 0, $docTag = 'phparray', ‪$spaceInd = 0, array $options = [], array $stackData = [])
    {
        // The list of byte values which will trigger binary-safe storage. If any value has one of these char values in it, it will be encoded in base64
        $binaryChars = "\0" . chr(1) . chr(2) . chr(3) . chr(4) . chr(5) . chr(6) . chr(7) . chr(8) . chr(11) . chr(12) . chr(14) . chr(15) . chr(16) . chr(17) . chr(18) . chr(19) . chr(20) . chr(21) . chr(22) . chr(23) . chr(24) . chr(25) . chr(26) . chr(27) . chr(28) . chr(29) . chr(30) . chr(31);
        // Set indenting mode:
        $indentChar = ‪$spaceInd ? ' ' : "\t";
        $indentN = ‪$spaceInd > 0 ? ‪$spaceInd : 1;
        ‪$nl = ‪$spaceInd >= 0 ? LF : '';
        // Init output variable:
        ‪$output = '';
        // Traverse the input array
        foreach ($array as $k => $v) {
            $attr = '';
            $tagName = (string)$k;
            // Construct the tag name.
            // Use tag based on grand-parent + parent tag name
            if (isset($stackData['grandParentTagName'], $stackData['parentTagName'], $options['grandParentTagMap'][$stackData['grandParentTagName'] . '/' . $stackData['parentTagName']])) {
                $attr .= ' index="' . htmlspecialchars($tagName) . '"';
                $tagName = (string)$options['grandParentTagMap'][$stackData['grandParentTagName'] . '/' . $stackData['parentTagName']];
            } elseif (isset($stackData['parentTagName'], $options['parentTagMap'][$stackData['parentTagName'] . ':_IS_NUM']) && ‪MathUtility::canBeInterpretedAsInteger($tagName)) {
                // Use tag based on parent tag name + if current tag is numeric
                $attr .= ' index="' . htmlspecialchars($tagName) . '"';
                $tagName = (string)$options['parentTagMap'][$stackData['parentTagName'] . ':_IS_NUM'];
            } elseif (isset($stackData['parentTagName'], $options['parentTagMap'][$stackData['parentTagName'] . ':' . $tagName])) {
                // Use tag based on parent tag name + current tag
                $attr .= ' index="' . htmlspecialchars($tagName) . '"';
                $tagName = (string)$options['parentTagMap'][$stackData['parentTagName'] . ':' . $tagName];
            } elseif (isset($stackData['parentTagName'], $options['parentTagMap'][$stackData['parentTagName']])) {
                // Use tag based on parent tag name:
                $attr .= ' index="' . htmlspecialchars($tagName) . '"';
                $tagName = (string)$options['parentTagMap'][$stackData['parentTagName']];
            } elseif (‪MathUtility::canBeInterpretedAsInteger($tagName)) {
                // If integer...;
                if ($options['useNindex'] ?? false) {
                    // If numeric key, prefix "n"
                    $tagName = 'n' . $tagName;
                } else {
                    // Use special tag for num. keys:
                    $attr .= ' index="' . $tagName . '"';
                    $tagName = ($options['useIndexTagForNum'] ?? false) ?: 'numIndex';
                }
            } elseif (!empty($options['useIndexTagForAssoc'])) {
                // Use tag for all associative keys:
                $attr .= ' index="' . htmlspecialchars($tagName) . '"';
                $tagName = $options['useIndexTagForAssoc'];
            }
            // The tag name is cleaned up so only alphanumeric chars (plus - and _) are in there and not longer than 100 chars either.
            $tagName = substr(preg_replace('/[^[:alnum:]_-]/', '', $tagName), 0, 100);
            // If the value is an array then we will call this function recursively:
            if (is_array($v)) {
                // Sub elements:
                if (isset($options['alt_options']) && ($options['alt_options'][($stackData['path'] ?? '') . '/' . $tagName] ?? false)) {
                    $subOptions = $options['alt_options'][($stackData['path'] ?? '') . '/' . $tagName];
                    $clearStackPath = (bool)($subOptions['clearStackPath'] ?? false);
                } else {
                    $subOptions = $options;
                    $clearStackPath = false;
                }
                if (empty($v)) {
                    $content = '';
                } else {
                    $content = ‪$nl . self::array2xml($v, $NSprefix, $level + 1, '', ‪$spaceInd, $subOptions, [
                            'parentTagName' => $tagName,
                            'grandParentTagName' => $stackData['parentTagName'] ?? '',
                            'path' => $clearStackPath ? '' : ($stackData['path'] ?? '') . '/' . $tagName,
                        ]) . (‪$spaceInd >= 0 ? str_pad('', ($level + 1) * $indentN, $indentChar) : '');
                }
                // Do not set "type = array". Makes prettier XML but means that empty arrays are not restored with xml2array
                if (!isset($options['disableTypeAttrib']) || (int)$options['disableTypeAttrib'] != 2) {
                    $attr .= ' type="array"';
                }
            } else {
                $stringValue = (string)$v;
                // Just a value:
                // Look for binary chars:
                $vLen = strlen($stringValue);
                // Go for base64 encoding if the initial segment NOT matching any binary char has the same length as the whole string!
                if ($vLen && strcspn($stringValue, $binaryChars) != $vLen) {
                    // If the value contained binary chars then we base64-encode it and set an attribute to notify this situation:
                    $content = ‪$nl . chunk_split(base64_encode($stringValue));
                    $attr .= ' base64="1"';
                } else {
                    // Otherwise, just htmlspecialchar the stuff:
                    $content = htmlspecialchars($stringValue);
                    $dType = gettype($v);
                    if ($dType === 'string') {
                        if (isset($options['useCDATA']) && $options['useCDATA'] && $content != $stringValue) {
                            $content = '<![CDATA[' . $stringValue . ']]>';
                        }
                    } elseif (!($options['disableTypeAttrib'] ?? false)) {
                        $attr .= ' type="' . $dType . '"';
                    }
                }
            }
            if ($tagName !== '') {
                // Add the element to the output string:
                ‪$output .= (‪$spaceInd >= 0 ? str_pad('', ($level + 1) * $indentN, $indentChar) : '')
                    . '<' . $NSprefix . $tagName . $attr . '>' . $content . '</' . $NSprefix . $tagName . '>' . ‪$nl;
            }
        }
        // If we are at the outer-most level, then we finally wrap it all in the document tags and return that as the value:
        if (!$level) {
            ‪$output = '<' . $docTag . '>' . ‪$nl . ‪$output . '</' . $docTag . '>';
        }
        return ‪$output;
    }
 
    public static function ‪xml2array($string, $NSprefix = '', $reportDocTag = false)
    {
        $runtimeCache = static::makeInstance(CacheManager::class)->getCache('runtime');
        $firstLevelCache = $runtimeCache->get('generalUtilityXml2Array') ?: [];
        ‪$identifier = md5($string . $NSprefix . ($reportDocTag ? '1' : '0'));
        // Look up in first level cache
        if (empty($firstLevelCache[‪$identifier])) {
            $firstLevelCache[‪$identifier] = ‪self::xml2arrayProcess($string, $NSprefix, $reportDocTag);
            $runtimeCache->set('generalUtilityXml2Array', $firstLevelCache);
        }
        return $firstLevelCache[‪$identifier];
    }
 
    public static function ‪xml2arrayProcess($string, $NSprefix = '', $reportDocTag = false)
    {
        $string = trim((string)$string);
        // Create parser:
        ‪$parser = xml_parser_create();
        $vals = [];
        $index = [];
        xml_parser_set_option(‪$parser, XML_OPTION_CASE_FOLDING, 0);
        xml_parser_set_option(‪$parser, XML_OPTION_SKIP_WHITE, 0);
        // Default output charset is UTF-8, only ASCII, ISO-8859-1 and UTF-8 are supported!!!
        $match = [];
        preg_match('/^[[:space:]]*<\\?xml[^>]*encoding[[:space:]]*=[[:space:]]*"([^"]*)"/', substr($string, 0, 200), $match);
        $theCharset = $match[1] ?? 'utf-8';
        // us-ascii / utf-8 / iso-8859-1
        xml_parser_set_option(‪$parser, XML_OPTION_TARGET_ENCODING, $theCharset);
        // Parse content:
        xml_parse_into_struct(‪$parser, $string, $vals, $index);
        // If error, return error message:
        if (xml_get_error_code(‪$parser)) {
            return 'Line ' . xml_get_current_line_number(‪$parser) . ': ' . xml_error_string(xml_get_error_code(‪$parser));
        }
        xml_parser_free(‪$parser);
        // Init vars:
        $stack = [[]];
        $stacktop = 0;
        $current = [];
        $tagName = '';
        $documentTag = '';
        // Traverse the parsed XML structure:
        foreach ($vals as $key => $val) {
            // First, process the tag-name (which is used in both cases, whether "complete" or "close")
            $tagName = $val['tag'];
            if (!$documentTag) {
                $documentTag = $tagName;
            }
            // Test for name space:
            $tagName = $NSprefix && str_starts_with($tagName, $NSprefix) ? substr($tagName, strlen($NSprefix)) : $tagName;
            // Test for numeric tag, encoded on the form "nXXX":
            $testNtag = substr($tagName, 1);
            // Closing tag.
            $tagName = $tagName[0] === 'n' && ‪MathUtility::canBeInterpretedAsInteger($testNtag) ? (int)$testNtag : $tagName;
            // Test for alternative index value:
            if ((string)($val['attributes']['index'] ?? '') !== '') {
                $tagName = $val['attributes']['index'];
            }
            // Setting tag-values, manage stack:
            switch ($val['type']) {
                case 'open':
                    // If open tag it means there is an array stored in sub-elements. Therefore increase the stackpointer and reset the accumulation array:
                    // Setting blank place holder
                    $current[$tagName] = [];
                    $stack[$stacktop++] = $current;
                    $current = [];
                    break;
                case 'close':
                    // If the tag is "close" then it is an array which is closing and we decrease the stack pointer.
                    $oldCurrent = $current;
                    $current = $stack[--$stacktop];
                    // Going to the end of array to get placeholder key, key($current), and fill in array next:
                    end($current);
                    $current[key($current)] = $oldCurrent;
                    unset($oldCurrent);
                    break;
                case 'complete':
                    // If "complete", then it's a value. If the attribute "base64" is set, then decode the value, otherwise just set it.
                    if (!empty($val['attributes']['base64'])) {
                        $current[$tagName] = base64_decode($val['value']);
                    } else {
                        // Had to cast it as a string - otherwise it would be evaluate FALSE if tested with isset()!!
                        $current[$tagName] = (string)($val['value'] ?? '');
                        // Cast type:
                        switch ((string)($val['attributes']['type'] ?? '')) {
                            case 'integer':
                                $current[$tagName] = (int)$current[$tagName];
                                break;
                            case 'double':
                                $current[$tagName] = (float)$current[$tagName];
                                break;
                            case 'boolean':
                                $current[$tagName] = (bool)$current[$tagName];
                                break;
                            case 'NULL':
                                $current[$tagName] = null;
                                break;
                            case 'array':
                                // MUST be an empty array since it is processed as a value; Empty arrays would end up here because they would have no tags inside...
                                $current[$tagName] = [];
                                break;
                        }
                    }
                    break;
            }
        }
        if ($reportDocTag) {
            $current[$tagName]['_DOCUMENT_TAG'] = $documentTag;
        }
        // Finally return the content of the document tag.
        return $current[$tagName];
    }
 
    public static function ‪xmlRecompileFromStructValArray(array $vals)
    {
        $XMLcontent = '';
        foreach ($vals as $val) {
            $type = $val['type'];
            // Open tag:
            if ($type === 'open' || $type === 'complete') {
                $XMLcontent .= '<' . $val['tag'];
                if (isset($val['attributes'])) {
                    foreach ($val['attributes'] as $k => $v) {
                        $XMLcontent .= ' ' . $k . '="' . htmlspecialchars($v) . '"';
                    }
                }
                if ($type === 'complete') {
                    if (isset($val['value'])) {
                        $XMLcontent .= '>' . htmlspecialchars($val['value']) . '</' . $val['tag'] . '>';
                    } else {
                        $XMLcontent .= '/>';
                    }
                } else {
                    $XMLcontent .= '>';
                }
                if ($type === 'open' && isset($val['value'])) {
                    $XMLcontent .= htmlspecialchars($val['value']);
                }
            }
            // Finish tag:
            if ($type === 'close') {
                $XMLcontent .= '</' . $val['tag'] . '>';
            }
            // Cdata
            if ($type === 'cdata') {
                $XMLcontent .= htmlspecialchars($val['value']);
            }
        }
        return $XMLcontent;
    }
 
    /*************************
     *
     * FILES FUNCTIONS
     *
     *************************/
    public static function ‪getUrl(‪$url)
    {
        // Looks like it's an external file, use Guzzle by default
        if (preg_match('/^(?:http|ftp)s?|s(?:ftp|cp):/', ‪$url)) {
            $requestFactory = static::makeInstance(RequestFactory::class);
            try {
                $response = $requestFactory->request(‪$url);
            } catch (RequestException $exception) {
                return false;
            }
            $content = $response->getBody()->getContents();
        } else {
            $content = @file_get_contents(‪$url);
        }
        return $content;
    }
 
    public static function ‪writeFile($file, $content, $changePermissions = false)
    {
        if (!@is_file($file)) {
            $changePermissions = true;
        }
        if ($fd = fopen($file, 'wb')) {
            $res = fwrite($fd, $content);
            fclose($fd);
            if ($res === false) {
                return false;
            }
            // Change the permissions only if the file has just been created
            if ($changePermissions) {
                static::fixPermissions($file);
            }
            return true;
        }
        return false;
    }
 
    public static function ‪fixPermissions($path, $recursive = false)
    {
        $targetPermissions = null;
        if (‪Environment::isWindows()) {
            return true;
        }
        $result = false;
        // Make path absolute
        if (!‪PathUtility::isAbsolutePath($path)) {
            $path = static::getFileAbsFileName($path);
        }
        if (static::isAllowedAbsPath($path)) {
            if (@is_file($path)) {
                $targetPermissions = (string)(‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['fileCreateMask'] ?? '0644');
            } elseif (@is_dir($path)) {
                $targetPermissions = (string)(‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['folderCreateMask'] ?? '0755');
            }
            if (!empty($targetPermissions)) {
                // make sure it's always 4 digits
                $targetPermissions = str_pad($targetPermissions, 4, '0', STR_PAD_LEFT);
                $targetPermissions = octdec($targetPermissions);
                // "@" is there because file is not necessarily OWNED by the user
                $result = @chmod($path, (int)$targetPermissions);
            }
            // Set createGroup if not empty
            if (
                isset(‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['createGroup'])
                && ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['createGroup'] !== ''
            ) {
                // "@" is there because file is not necessarily OWNED by the user
                $changeGroupResult = @chgrp($path, ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['createGroup']);
                $result = $changeGroupResult ? $result : false;
            }
            // Call recursive if recursive flag if set and $path is directory
            if ($recursive && @is_dir($path)) {
                $handle = opendir($path);
                if (is_resource($handle)) {
                    while (($file = readdir($handle)) !== false) {
                        $recursionResult = null;
                        if ($file !== '.' && $file !== '..') {
                            if (@is_file($path . '/' . $file)) {
                                $recursionResult = static::fixPermissions($path . '/' . $file);
                            } elseif (@is_dir($path . '/' . $file)) {
                                $recursionResult = static::fixPermissions($path . '/' . $file, true);
                            }
                            if (isset($recursionResult) && !$recursionResult) {
                                $result = false;
                            }
                        }
                    }
                    closedir($handle);
                }
            }
        }
        return $result;
    }
 
    public static function ‪writeFileToTypo3tempDir($filepath, $content)
    {
        // Parse filepath into directory and basename:
        $fI = pathinfo($filepath);
        $fI['dirname'] .= '/';
        // Check parts:
        if (!static::validPathStr($filepath) || !$fI['basename'] || strlen($fI['basename']) >= 60) {
            return 'Input filepath "' . $filepath . '" was generally invalid!';
        }
 
        // Setting main temporary directory name (standard)
        $allowedPathPrefixes = [
            ‪Environment::getPublicPath() . '/typo3temp' => 'Environment::getPublicPath() + "/typo3temp/"',
        ];
        // Also allow project-path + /var/
        if (‪Environment::getVarPath() !== ‪Environment::getPublicPath() . '/typo3temp/var') {
            $relPath = substr(‪Environment::getVarPath(), strlen(‪Environment::getProjectPath()) + 1);
            $allowedPathPrefixes[‪Environment::getVarPath()] = 'ProjectPath + ' . $relPath;
        }
 
        $errorMessage = null;
        foreach ($allowedPathPrefixes as $pathPrefix => $prefixLabel) {
            $dirName = $pathPrefix . '/';
            // Invalid file path, let's check for the other path, if it exists
            if (!str_starts_with($fI['dirname'], $dirName)) {
                if ($errorMessage === null) {
                    $errorMessage = '"' . $fI['dirname'] . '" was not within directory ' . $prefixLabel;
                }
                continue;
            }
            // This resets previous error messages from the first path
            $errorMessage = null;
 
            if (!@is_dir($dirName)) {
                $errorMessage = $prefixLabel . ' was not a directory!';
                // continue and see if the next iteration resets the errorMessage above
                continue;
            }
            // Checking if the "subdir" is found
            $subdir = substr($fI['dirname'], strlen($dirName));
            if ($subdir) {
                if (preg_match('#^(?:[[:alnum:]_]+/)+$#', $subdir)) {
                    $dirName .= $subdir;
                    if (!@is_dir($dirName)) {
                        static::mkdir_deep($pathPrefix . '/' . $subdir);
                    }
                } else {
                    $errorMessage = 'Subdir, "' . $subdir . '", was NOT on the form "[[:alnum:]_]/+"';
                    break;
                }
            }
            // Checking dir-name again (sub-dir might have been created)
            if (@is_dir($dirName)) {
                if ($filepath === $dirName . $fI['basename']) {
                    static::writeFile($filepath, $content);
                    if (!@is_file($filepath)) {
                        $errorMessage = 'The file was not written to the disk. Please, check that you have write permissions to the ' . $prefixLabel . ' directory.';
                    }
                    break;
                }
                $errorMessage = 'Calculated file location didn\'t match input "' . $filepath . '".';
                break;
            }
            $errorMessage = '"' . $dirName . '" is not a directory!';
            break;
        }
        return $errorMessage;
    }
 
    public static function ‪mkdir($newFolder)
    {
        $result = @‪mkdir($newFolder, (int)octdec((string)(‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['folderCreateMask'] ?? '0')));
        if ($result) {
            static::fixPermissions($newFolder);
        }
        return $result;
    }
 
    public static function ‪mkdir_deep($directory)
    {
        if (!is_string($directory)) {
            throw new \InvalidArgumentException('The specified directory is of type "' . gettype($directory) . '" but a string is expected.', 1303662955);
        }
        // Ensure there is only one slash
        $fullPath = rtrim($directory, '/') . '/';
        if ($fullPath !== '/' && !is_dir($fullPath)) {
            $firstCreatedPath = static::createDirectoryPath($fullPath);
            if ($firstCreatedPath !== '') {
                static::fixPermissions($firstCreatedPath, true);
            }
        }
    }
 
    protected static function ‪createDirectoryPath($fullDirectoryPath)
    {
        $currentPath = $fullDirectoryPath;
        $firstCreatedPath = '';
        $permissionMask = (int)octdec((string)(‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['folderCreateMask'] ?? '0'));
        if (!@is_dir($currentPath)) {
            do {
                $firstCreatedPath = $currentPath;
                $separatorPosition = (int)strrpos($currentPath, DIRECTORY_SEPARATOR);
                $currentPath = substr($currentPath, 0, $separatorPosition);
            } while (!is_dir($currentPath) && $separatorPosition > 0);
            $result = @‪mkdir($fullDirectoryPath, $permissionMask, true);
            // Check existence of directory again to avoid race condition. Directory could have get created by another process between previous is_dir() and mkdir()
            if (!$result && !@is_dir($fullDirectoryPath)) {
                throw new \RuntimeException('Could not create directory "' . $fullDirectoryPath . '"!', 1170251401);
            }
        }
        return $firstCreatedPath;
    }
 
    public static function ‪rmdir($path, $removeNonEmpty = false)
    {
        $OK = false;
        // Remove trailing slash
        $path = preg_replace('|/$|', '', $path) ?? '';
        $isWindows = DIRECTORY_SEPARATOR === '\\';
        if (file_exists($path)) {
            $OK = true;
            if (!is_link($path) && is_dir($path)) {
                if ($removeNonEmpty === true && ($handle = @opendir($path))) {
                    $entries = [];
 
                    while (false !== ($file = readdir($handle))) {
                        if ($file === '.' || $file === '..') {
                            continue;
                        }
 
                        $entries[] = $path . '/' . $file;
                    }
 
                    closedir($handle);
 
                    foreach ($entries as $entry) {
                        if (!static::rmdir($entry, $removeNonEmpty)) {
                            $OK = false;
                        }
                    }
                }
                if ($OK) {
                    $OK = @‪rmdir($path);
                }
            } elseif (is_link($path) && is_dir($path) && $isWindows) {
                $OK = @‪rmdir($path);
            } else {
                // If $path is a file, simply remove it
                $OK = @unlink($path);
            }
            clearstatcache();
        } elseif (is_link($path)) {
            $OK = @unlink($path);
            if (!$OK && $isWindows) {
                // Try to delete dead folder links on Windows systems
                $OK = @‪rmdir($path);
            }
            clearstatcache();
        }
        return $OK;
    }
 
    public static function ‪get_dirs($path)
    {
        $dirs = null;
        if ($path) {
            if (is_dir($path)) {
                ‪$dir = scandir($path);
                $dirs = [];
                foreach (‪$dir as $entry) {
                    if (is_dir($path . '/' . $entry) && $entry !== '..' && $entry !== '.') {
                        $dirs[] = $entry;
                    }
                }
            } else {
                $dirs = 'error';
            }
        }
        return $dirs;
    }
 
    public static function getFilesInDir($path, $extensionList = '', $prependPath = false, $order = '', $excludePattern = '')
    {
        $excludePattern = (string)$excludePattern;
        $path = rtrim($path, '/');
        if (!@is_dir($path)) {
            return [];
        }
 
        $rawFileList = scandir($path);
        if ($rawFileList === false) {
            return 'error opening path: "' . $path . '"';
        }
 
        $pathPrefix = $path . '/';
        $allowedFileExtensionArray = ‪self::trimExplode(',', $extensionList);
        $extensionList = ',' . str_replace(' ', '', $extensionList) . ',';
        $files = [];
        foreach ($rawFileList as $entry) {
            $completePathToEntry = $pathPrefix . $entry;
            if (!@is_file($completePathToEntry)) {
                continue;
            }
 
            foreach ($allowedFileExtensionArray as $allowedFileExtension) {
                if (
                    ($extensionList === ',,' || stripos($extensionList, ',' . substr($entry, strlen($allowedFileExtension) * -1, strlen($allowedFileExtension)) . ',') !== false)
                    && ($excludePattern === '' || !preg_match('/^' . $excludePattern . '$/', $entry))
                ) {
                    if ($order !== 'mtime') {
                        $files[] = $entry;
                    } else {
                        // Store the value in the key so we can do a fast asort later.
                        $files[$entry] = filemtime($completePathToEntry);
                    }
                }
            }
        }
 
        $valueName = 'value';
        if ($order === 'mtime') {
            asort($files);
            $valueName = 'key';
        }
 
        $valuePathPrefix = $prependPath ? $pathPrefix : '';
        $foundFiles = [];
        foreach ($files as $key => $value) {
            // Don't change this ever - extensions may depend on the fact that the hash is an md5 of the path! (import/export extension)
            $foundFiles[md5($pathPrefix . ${$valueName})] = $valuePathPrefix . ${$valueName};
        }
 
        return $foundFiles;
    }
 
    public static function getAllFilesAndFoldersInPath(array $fileArr, $path, $extList = '', $regDirs = false, $recursivityLevels = 99, $excludePattern = '')
    {
        if ($regDirs) {
            $fileArr[md5($path)] = $path;
        }
        $fileArr = array_merge($fileArr, (array)self::getFilesInDir($path, $extList, true, '', $excludePattern));
        $dirs = ‪self::get_dirs($path);
        if ($recursivityLevels > 0 && is_array($dirs)) {
            foreach ($dirs as $subdirs) {
                if ((string)$subdirs !== '' && ($excludePattern === '' || !preg_match('/^' . $excludePattern . '$/', $subdirs))) {
                    $fileArr = self::getAllFilesAndFoldersInPath($fileArr, $path . $subdirs . '/', $extList, $regDirs, $recursivityLevels - 1, $excludePattern);
                }
            }
        }
        return $fileArr;
    }
 
    public static function removePrefixPathFromList(array $fileArr, string $prefixToRemove)
    {
        foreach ($fileArr as &$absFileRef) {
            if (str_starts_with($absFileRef, $prefixToRemove)) {
                $absFileRef = substr($absFileRef, strlen($prefixToRemove));
            } else {
                return 'ERROR: One or more of the files was NOT prefixed with the prefix-path!';
            }
        }
        unset($absFileRef);
        return $fileArr;
    }
 
    public static function fixWindowsFilePath($theFile)
    {
        return str_replace(['\\', '//'], '/', $theFile);
    }
 
    public static function resolveBackPath($pathStr)
    {
        if (!str_contains($pathStr, '..')) {
            return $pathStr;
        }
        $parts = explode('/', $pathStr);
        ‪$output = [];
        $c = 0;
        foreach ($parts as $part) {
            if ($part === '..') {
                if ($c) {
                    array_pop(‪$output);
                    --$c;
                } else {
                    ‪$output[] = $part;
                }
            } else {
                ++$c;
                ‪$output[] = $part;
            }
        }
        return implode('/', ‪$output);
    }
 
    public static function locationHeaderUrl($path)
    {
        if (str_starts_with($path, '//')) {
            return $path;
        }
 
        // relative to HOST
        if (str_starts_with($path, '/')) {
            return self::getIndpEnv('TYPO3_REQUEST_HOST') . $path;
        }
 
        $urlComponents = parse_url($path);
        if (!($urlComponents['scheme'] ?? false)) {
            // No scheme either
            return self::getIndpEnv('TYPO3_REQUEST_DIR') . $path;
        }
 
        return $path;
    }
 
    public static function getMaxUploadFileSize()
    {
        $uploadMaxFilesize = (string)ini_get('upload_max_filesize');
        $postMaxSize = (string)ini_get('post_max_size');
        // Check for PHP restrictions of the maximum size of one of the $_FILES
        $phpUploadLimit = self::getBytesFromSizeMeasurement($uploadMaxFilesize);
        // Check for PHP restrictions of the maximum $_POST size
        $phpPostLimit = self::getBytesFromSizeMeasurement($postMaxSize);
        // If the total amount of post data is smaller (!) than the upload_max_filesize directive,
        // then this is the real limit in PHP
        $phpUploadLimit = $phpPostLimit > 0 && $phpPostLimit < $phpUploadLimit ? $phpPostLimit : $phpUploadLimit;
        return floor($phpUploadLimit) / 1024;
    }
 
    public static function getBytesFromSizeMeasurement($measurement)
    {
        $bytes = (float)$measurement;
        if (stripos($measurement, 'G')) {
            $bytes *= 1024 * 1024 * 1024;
        } elseif (stripos($measurement, 'M')) {
            $bytes *= 1024 * 1024;
        } elseif (stripos($measurement, 'K')) {
            $bytes *= 1024;
        }
        return (int)$bytes;
    }
 
    public static function createVersionNumberedFilename($file): string
    {
        $isFrontend = (‪$GLOBALS['TYPO3_REQUEST'] ?? null) instanceof ServerRequestInterface
            && ‪ApplicationType::fromRequest(‪$GLOBALS['TYPO3_REQUEST'])->isFrontend();
        $lookupFile = explode('?', $file);
        $path = $lookupFile[0];
 
        // @todo: in v13 this should be resolved by using Environment::getPublicPath() only
        if ($isFrontend) {
            // Frontend should still allow /static/myfile.css - see #98106
            // This should happen regardless of the incoming path is absolute or not
            $path = self::resolveBackPath(self::dirname(‪Environment::getCurrentScript()) . '/' . $path);
        } elseif (!‪PathUtility::isAbsolutePath($path)) {
            // Backend and non-absolute path
            $path = self::resolveBackPath(self::dirname(‪Environment::getCurrentScript()) . '/' . $path);
        }
 
        if ($isFrontend) {
            $configValue = ‪$GLOBALS['TYPO3_CONF_VARS']['FE']['versionNumberInFilename'] ?? false;
            // Fallback layer for TYPO3 v12 - @deprecated can be removed in TYPO3 v13.0.
            if ($configValue === 'embed') {
                // no @deprecated warning here, as this might fill a lot of log files.
                $configValue = true;
            } else {
                $configValue = $configValue === true;
            }
        } else {
            $configValue = (bool)(‪$GLOBALS['TYPO3_CONF_VARS']['BE']['versionNumberInFilename'] ?? false);
        }
        try {
            $fileExists = file_exists($path);
        } catch (\Throwable $e) {
            $fileExists = false;
        }
        if (!$fileExists) {
            // File not found, return filename unaltered
            $fullName = $file;
        } else {
            if (!$configValue) {
                // If .htaccess rule is not configured,
                // use the default query-string method
                if (!empty($lookupFile[1])) {
                    $separator = '&';
                } else {
                    $separator = '?';
                }
                $fullName = $file . $separator . filemtime($path);
            } else {
                // Change the filename
                $name = explode('.', $lookupFile[0]);
                $extension = array_pop($name);
                array_push($name, filemtime($path), $extension);
                $fullName = implode('.', $name);
                // Append potential query string
                $fullName .= !empty($lookupFile[1]) ? '?' . $lookupFile[1] : '';
            }
        }
        return $fullName;
    }
 
    public static function writeJavaScriptContentToTemporaryFile(string $content)
    {
        $script = 'typo3temp/assets/js/' . md5($content) . '.js';
        if (!@is_file(‪Environment::getPublicPath() . '/' . $script)) {
            ‪self::writeFileToTypo3tempDir(‪Environment::getPublicPath() . '/' . $script, $content);
        }
        return $script;
    }
 
    public static function writeStyleSheetContentToTemporaryFile(string $content)
    {
        $script = 'typo3temp/assets/css/' . md5($content) . '.css';
        if (!@is_file(‪Environment::getPublicPath() . '/' . $script)) {
            ‪self::writeFileToTypo3tempDir(‪Environment::getPublicPath() . '/' . $script, $content);
        }
        return $script;
    }
 
    /*************************
     *
     * SYSTEM INFORMATION
     *
     *************************/
 
    public static function linkThisScript(array $getParams = [])
    {
        $parts = self::getIndpEnv('SCRIPT_NAME');
        $params = ‪self::_GET();
        foreach ($getParams as $key => $value) {
            if ($value !== '') {
                $params[$key] = $value;
            } else {
                unset($params[$key]);
            }
        }
        $pString = ‪self::implodeArrayForUrl('', $params);
        return $pString ? $parts . '?' . ltrim($pString, '&') : $parts;
    }
 
    public static function setIndpEnv($envName, $value)
    {
        self::$indpEnvCache[$envName] = $value;
    }
 
    public static function getIndpEnv($getEnvName)
    {
        if (array_key_exists($getEnvName, self::$indpEnvCache)) {
            return self::$indpEnvCache[$getEnvName];
        }
 
        /*
        Conventions:
        output from parse_url():
        URL:    http://username:password@192.168.1.4:8080/typo3/32/temp/phpcheck/index.php/arg1/arg2/arg3/?arg1,arg2,arg3&p1=parameter1&p2[key]=value#link1
        [scheme] => 'http'
        [user] => 'username'
        [pass] => 'password'
        [host] => '192.168.1.4'
        [port] => '8080'
        [path] => '/typo3/32/temp/phpcheck/index.php/arg1/arg2/arg3/'
        [query] => 'arg1,arg2,arg3&p1=parameter1&p2[key]=value'
        [fragment] => 'link1'Further definition: [path_script] = '/typo3/32/temp/phpcheck/index.php'
        [path_dir] = '/typo3/32/temp/phpcheck/'
        [path_info] = '/arg1/arg2/arg3/'
        [path] = [path_script/path_dir][path_info]Keys supported:URI______:
        REQUEST_URI     =   [path]?[query]      = /typo3/32/temp/phpcheck/index.php/arg1/arg2/arg3/?arg1,arg2,arg3&p1=parameter1&p2[key]=value
        HTTP_HOST       =   [host][:[port]]     = 192.168.1.4:8080
        SCRIPT_NAME     =   [path_script]++     = /typo3/32/temp/phpcheck/index.php     // NOTICE THAT SCRIPT_NAME will return the php-script name ALSO. [path_script] may not do that (eg. '/somedir/' may result in SCRIPT_NAME '/somedir/index.php')!
        PATH_INFO       =   [path_info]         = /arg1/arg2/arg3/
        QUERY_STRING    =   [query]             = arg1,arg2,arg3&p1=parameter1&p2[key]=value
        HTTP_REFERER    =   [scheme]://[host][:[port]][path]    = http://192.168.1.4:8080/typo3/32/temp/phpcheck/index.php/arg1/arg2/arg3/?arg1,arg2,arg3&p1=parameter1&p2[key]=value
        (Notice: NO username/password + NO fragment)CLIENT____:
        REMOTE_ADDR     =   (client IP)
        REMOTE_HOST     =   (client host)
        HTTP_USER_AGENT =   (client user agent)
        HTTP_ACCEPT_LANGUAGE    = (client accept language)SERVER____:
        SCRIPT_FILENAME =   Absolute filename of script     (Differs between windows/unix). On windows 'C:\\some\\path\\' will be converted to 'C:/some/path/'Special extras:
        TYPO3_HOST_ONLY =       [host] = 192.168.1.4
        TYPO3_PORT =            [port] = 8080 (blank if 80, taken from host value)
        TYPO3_REQUEST_HOST =        [scheme]://[host][:[port]]
        TYPO3_REQUEST_URL =     [scheme]://[host][:[port]][path]?[query] (scheme will by default be "http" until we can detect something different)
        TYPO3_REQUEST_SCRIPT =      [scheme]://[host][:[port]][path_script]
        TYPO3_REQUEST_DIR =     [scheme]://[host][:[port]][path_dir]
        TYPO3_SITE_URL =        [scheme]://[host][:[port]][path_dir] of the TYPO3 website frontend
        TYPO3_SITE_PATH =       [path_dir] of the TYPO3 website frontend
        TYPO3_SITE_SCRIPT =         [script / Speaking URL] of the TYPO3 website
        TYPO3_DOCUMENT_ROOT =       Absolute path of root of documents: TYPO3_DOCUMENT_ROOT.SCRIPT_NAME = SCRIPT_FILENAME (typically)
        TYPO3_SSL =             Returns TRUE if this session uses SSL/TLS (https)
        TYPO3_PROXY =           Returns TRUE if this session runs over a well known proxyNotice: [fragment] is apparently NEVER available to the script!Testing suggestions:
        - Output all the values.
        - In the script, make a link to the script it self, maybe add some parameters and click the link a few times so HTTP_REFERER is seen
        - ALSO TRY the script from the ROOT of a site (like 'http://www.mytest.com/' and not 'http://www.mytest.com/test/' !!)
         */
        $retVal = '';
        switch ((string)$getEnvName) {
            case 'SCRIPT_NAME':
                $retVal = $_SERVER['SCRIPT_NAME'] ?? '';
                // Add a prefix if TYPO3 is behind a proxy: ext-domain.com => int-server.com/prefix
                if (self::cmpIP($_SERVER['REMOTE_ADDR'] ?? '', ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyIP'] ?? '')) {
                    if (self::getIndpEnv('TYPO3_SSL') && ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyPrefixSSL']) {
                        $retVal = ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyPrefixSSL'] . $retVal;
                    } elseif (‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyPrefix']) {
                        $retVal = ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyPrefix'] . $retVal;
                    }
                }
                $retVal = self::encodeFileSystemPathComponentForUrlPath($retVal);
                break;
            case 'SCRIPT_FILENAME':
                $retVal = ‪Environment::getCurrentScript();
                break;
            case 'REQUEST_URI':
                // Typical application of REQUEST_URI is return urls, forms submitting to itself etc. Example: returnUrl='.rawurlencode(\TYPO3\CMS\Core\Utility\GeneralUtility::getIndpEnv('REQUEST_URI'))
                if (!empty(‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['requestURIvar'])) {
                    // This is for URL rewriters that store the original URI in a server variable (eg ISAPI_Rewriter for IIS: HTTP_X_REWRITE_URL)
                    [$v, $n] = explode('|', ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['requestURIvar']);
                    $retVal = ‪$GLOBALS[$v][$n];
                } elseif (empty($_SERVER['REQUEST_URI'])) {
                    // This is for ISS/CGI which does not have the REQUEST_URI available.
                    $retVal = '/' . ltrim(self::getIndpEnv('SCRIPT_NAME'), '/') . (!empty($_SERVER['QUERY_STRING']) ? '?' . $_SERVER['QUERY_STRING'] : '');
                } else {
                    $retVal = '/' . ltrim($_SERVER['REQUEST_URI'], '/');
                }
                // Add a prefix if TYPO3 is behind a proxy: ext-domain.com => int-server.com/prefix
                if (isset($_SERVER['REMOTE_ADDR'], ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyIP'])
                    && self::cmpIP($_SERVER['REMOTE_ADDR'], ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyIP'])
                ) {
                    if (self::getIndpEnv('TYPO3_SSL') && ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyPrefixSSL']) {
                        $retVal = ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyPrefixSSL'] . $retVal;
                    } elseif (‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyPrefix']) {
                        $retVal = ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyPrefix'] . $retVal;
                    }
                }
                break;
            case 'PATH_INFO':
                $retVal = $_SERVER['PATH_INFO'] ?? '';
                break;
            case 'TYPO3_REV_PROXY':
                $retVal = ‪self::cmpIP($_SERVER['REMOTE_ADDR'] ?? '', ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyIP']);
                break;
            case 'REMOTE_ADDR':
                $retVal = $_SERVER['REMOTE_ADDR'] ?? '';
                if (self::cmpIP($retVal, ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyIP'] ?? '')) {
                    $ip = ‪self::trimExplode(',', $_SERVER['HTTP_X_FORWARDED_FOR'] ?? '');
                    // Choose which IP in list to use
                    if (!empty($ip)) {
                        switch (‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyHeaderMultiValue']) {
                            case 'last':
                                $ip = array_pop($ip);
                                break;
                            case 'first':
                                $ip = array_shift($ip);
                                break;
                            case 'none':
 
                            default:
                                $ip = '';
                        }
                    }
                    if (self::validIP((string)$ip)) {
                        $retVal = $ip;
                    }
                }
                break;
            case 'HTTP_HOST':
                // if it is not set we're most likely on the cli
                $retVal = $_SERVER['HTTP_HOST'] ?? '';
                if (isset($_SERVER['REMOTE_ADDR']) && static::cmpIP($_SERVER['REMOTE_ADDR'], ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyIP'])) {
                    $host = ‪self::trimExplode(',', $_SERVER['HTTP_X_FORWARDED_HOST'] ?? '');
                    // Choose which host in list to use
                    if (!empty($host)) {
                        switch (‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyHeaderMultiValue']) {
                            case 'last':
                                $host = array_pop($host);
                                break;
                            case 'first':
                                $host = array_shift($host);
                                break;
                            case 'none':
 
                            default:
                                $host = '';
                        }
                    }
                    if ($host) {
                        $retVal = $host;
                    }
                }
                break;
            case 'HTTP_REFERER':
 
            case 'HTTP_USER_AGENT':
 
            case 'HTTP_ACCEPT_ENCODING':
 
            case 'HTTP_ACCEPT_LANGUAGE':
 
            case 'REMOTE_HOST':
 
            case 'QUERY_STRING':
                $retVal = $_SERVER[$getEnvName] ?? '';
                break;
            case 'TYPO3_DOCUMENT_ROOT':
                // Get the web root (it is not the root of the TYPO3 installation)
                // The absolute path of the script can be calculated with TYPO3_DOCUMENT_ROOT + SCRIPT_FILENAME
                // Some CGI-versions (LA13CGI) and mod-rewrite rules on MODULE versions will deliver a 'wrong' DOCUMENT_ROOT (according to our description). Further various aliases/mod_rewrite rules can disturb this as well.
                // Therefore the DOCUMENT_ROOT is now always calculated as the SCRIPT_FILENAME minus the end part shared with SCRIPT_NAME.
                $SFN = self::getIndpEnv('SCRIPT_FILENAME');
                // Use rawurldecode to reverse the result of self::encodeFileSystemPathComponentForUrlPath()
                // which has been applied to getIndpEnv(SCRIPT_NAME) for web URI usage.
                // We compare with a file system path (SCRIPT_FILENAME) in here and therefore need to undo the encoding.
                $SN_A = array_map(rawurldecode(...), explode('/', strrev(self::getIndpEnv('SCRIPT_NAME'))));
                $SFN_A = explode('/', strrev($SFN));
                $acc = [];
                foreach ($SN_A as $kk => $vv) {
                    if ((string)$SFN_A[$kk] === (string)$vv) {
                        $acc[] = $vv;
                    } else {
                        break;
                    }
                }
                $commonEnd = strrev(implode('/', $acc));
                if ((string)$commonEnd !== '') {
                    $retVal = substr($SFN, 0, -(strlen($commonEnd) + 1));
                }
                break;
            case 'TYPO3_HOST_ONLY':
                $httpHost = self::getIndpEnv('HTTP_HOST');
                $httpHostBracketPosition = strpos($httpHost, ']');
                $httpHostParts = explode(':', $httpHost);
                $retVal = $httpHostBracketPosition !== false ? substr($httpHost, 0, $httpHostBracketPosition + 1) : array_shift($httpHostParts);
                break;
            case 'TYPO3_PORT':
                $httpHost = self::getIndpEnv('HTTP_HOST');
                $httpHostOnly = self::getIndpEnv('TYPO3_HOST_ONLY');
                $retVal = strlen($httpHost) > strlen($httpHostOnly) ? substr($httpHost, strlen($httpHostOnly) + 1) : '';
                break;
            case 'TYPO3_REQUEST_HOST':
                $retVal = (self::getIndpEnv('TYPO3_SSL') ? 'https://' : 'http://') . self::getIndpEnv('HTTP_HOST');
                break;
            case 'TYPO3_REQUEST_URL':
                $retVal = self::getIndpEnv('TYPO3_REQUEST_HOST') . self::getIndpEnv('REQUEST_URI');
                break;
            case 'TYPO3_REQUEST_SCRIPT':
                $retVal = self::getIndpEnv('TYPO3_REQUEST_HOST') . self::getIndpEnv('SCRIPT_NAME');
                break;
            case 'TYPO3_REQUEST_DIR':
                $retVal = self::getIndpEnv('TYPO3_REQUEST_HOST') . self::dirname(self::getIndpEnv('SCRIPT_NAME')) . '/';
                break;
            case 'TYPO3_SITE_URL':
                if (‪Environment::getCurrentScript()) {
                    $lPath = ‪PathUtility::stripPathSitePrefix(‪PathUtility::dirnameDuringBootstrap(‪Environment::getCurrentScript())) . '/';
                    ‪$url = self::getIndpEnv('TYPO3_REQUEST_DIR');
                    $siteUrl = substr(‪$url, 0, -strlen($lPath));
                    if (substr($siteUrl, -1) !== '/') {
                        $siteUrl .= '/';
                    }
                    $retVal = $siteUrl;
                }
                break;
            case 'TYPO3_SITE_PATH':
                $retVal = substr(self::getIndpEnv('TYPO3_SITE_URL'), strlen(self::getIndpEnv('TYPO3_REQUEST_HOST')));
                break;
            case 'TYPO3_SITE_SCRIPT':
                $retVal = substr(self::getIndpEnv('TYPO3_REQUEST_URL'), strlen(self::getIndpEnv('TYPO3_SITE_URL')));
                break;
            case 'TYPO3_SSL':
                $proxySSL = trim(‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxySSL'] ?? '');
                if ($proxySSL === '*') {
                    $proxySSL = ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyIP'];
                }
                if (self::cmpIP($_SERVER['REMOTE_ADDR'] ?? '', $proxySSL)) {
                    $retVal = true;
                } else {
                    $retVal = self::webserverUsesHttps();
                }
                break;
            case '_ARRAY':
                $out = [];
                // Here, list ALL possible keys to this function for debug display.
                $envTestVars = [
                    'HTTP_HOST',
                    'TYPO3_HOST_ONLY',
                    'TYPO3_PORT',
                    'PATH_INFO',
                    'QUERY_STRING',
                    'REQUEST_URI',
                    'HTTP_REFERER',
                    'TYPO3_REQUEST_HOST',
                    'TYPO3_REQUEST_URL',
                    'TYPO3_REQUEST_SCRIPT',
                    'TYPO3_REQUEST_DIR',
                    'TYPO3_SITE_URL',
                    'TYPO3_SITE_SCRIPT',
                    'TYPO3_SSL',
                    'TYPO3_REV_PROXY',
                    'SCRIPT_NAME',
                    'TYPO3_DOCUMENT_ROOT',
                    'SCRIPT_FILENAME',
                    'REMOTE_ADDR',
                    'REMOTE_HOST',
                    'HTTP_USER_AGENT',
                    'HTTP_ACCEPT_LANGUAGE',
                ];
                foreach ($envTestVars as $v) {
                    $out[$v] = self::getIndpEnv($v);
                }
                reset($out);
                $retVal = $out;
                break;
        }
        self::$indpEnvCache[$getEnvName] = $retVal;
        return $retVal;
    }
 
    protected static function webserverUsesHttps()
    {
        if (!empty($_SERVER['SSL_SESSION_ID'])) {
            return true;
        }
 
        // https://secure.php.net/manual/en/reserved.variables.server.php
        // "Set to a non-empty value if the script was queried through the HTTPS protocol."
        return !empty($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) !== 'off';
    }
 
    protected static function encodeFileSystemPathComponentForUrlPath(string $path): string
    {
        return implode('/', array_map(rawurlencode(...), explode('/', $path)));
    }
 
    /*************************
     *
     * TYPO3 SPECIFIC FUNCTIONS
     *
     *************************/
    public static function getFileAbsFileName($filename)
    {
        $fileName = (string)$filename;
        if ($fileName === '') {
            return '';
        }
        $checkForBackPath = fn (string $fileName): string => $fileName !== '' && static::validPathStr($fileName) ? $fileName : '';
 
        // Extension "EXT:" path resolving.
        if (‪PathUtility::isExtensionPath($fileName)) {
            try {
                $fileName = ‪ExtensionManagementUtility::resolvePackagePath($fileName);
            } catch (‪PackageException) {
                $fileName = '';
            }
            return $checkForBackPath($fileName);
        }
 
        // Absolute path, but set to blank if not inside allowed directories.
        if (‪PathUtility::isAbsolutePath($fileName)) {
            if (str_starts_with($fileName, ‪Environment::getProjectPath()) ||
                str_starts_with($fileName, ‪Environment::getPublicPath())) {
                return $checkForBackPath($fileName);
            }
            return '';
        }
 
        // Relative path. Prepend with the public web folder.
        $fileName = ‪Environment::getPublicPath() . '/' . $fileName;
        return $checkForBackPath($fileName);
    }
 
    public static function validPathStr($theFile)
    {
        return !str_contains($theFile, '//') && !str_contains($theFile, '\\')
            && preg_match('#(?:^\\.\\.|/\\.\\./|[[:cntrl:]])#u', $theFile) === 0;
    }
 
    public static function isAllowedAbsPath($path)
    {
        if (substr($path, 0, 6) === 'vfs://') {
            return true;
        }
        $lockRootPath = ‪$GLOBALS['TYPO3_CONF_VARS']['BE']['lockRootPath'] ?? '';
        return ‪PathUtility::isAbsolutePath($path) && static::validPathStr($path)
            && (
                str_starts_with($path, ‪Environment::getProjectPath())
                || str_starts_with($path, ‪Environment::getPublicPath())
                || ($lockRootPath && str_starts_with($path, $lockRootPath))
            );
    }
 
    public static function copyDirectory($source, $destination)
    {
        if (!str_contains($source, ‪Environment::getProjectPath() . '/')) {
            $source = ‪Environment::getPublicPath() . '/' . $source;
        }
        if (!str_contains($destination, ‪Environment::getProjectPath() . '/')) {
            $destination = ‪Environment::getPublicPath() . '/' . $destination;
        }
        if (static::isAllowedAbsPath($source) && static::isAllowedAbsPath($destination)) {
            static::mkdir_deep($destination);
            $iterator = new \RecursiveIteratorIterator(
                new \RecursiveDirectoryIterator($source, \RecursiveDirectoryIterator::SKIP_DOTS),
                \RecursiveIteratorIterator::SELF_FIRST
            );
            foreach ($iterator as $item) {
                $target = $destination . '/' . static::fixWindowsFilePath($iterator->getSubPathName());
                if ($item->isDir()) {
                    static::mkdir($target);
                } else {
                    static::upload_copy_move(static::fixWindowsFilePath($item->getPathname()), $target);
                }
            }
        }
    }
 
    public static function sanitizeLocalUrl(‪$url = '')
    {
        $sanitizedUrl = '';
        if (!empty(‪$url)) {
            $decodedUrl = rawurldecode(‪$url);
            $parsedUrl = parse_url($decodedUrl);
            $testAbsoluteUrl = self::resolveBackPath($decodedUrl);
            $testRelativeUrl = self::resolveBackPath(self::dirname(self::getIndpEnv('SCRIPT_NAME')) . '/' . $decodedUrl);
            // Pass if URL is on the current host:
            if (self::isValidUrl($decodedUrl)) {
                if (self::isOnCurrentHost($decodedUrl) && str_starts_with($decodedUrl, self::getIndpEnv('TYPO3_SITE_URL'))) {
                    $sanitizedUrl = ‪$url;
                }
            } elseif (‪PathUtility::isAbsolutePath($decodedUrl) && self::isAllowedAbsPath($decodedUrl)) {
                $sanitizedUrl = ‪$url;
            } elseif (str_starts_with($testAbsoluteUrl, self::getIndpEnv('TYPO3_SITE_PATH')) && $decodedUrl[0] === '/' &&
                substr($decodedUrl, 0, 2) !== '//'
            ) {
                $sanitizedUrl = ‪$url;
            } elseif (empty($parsedUrl['scheme']) && str_starts_with($testRelativeUrl, self::getIndpEnv('TYPO3_SITE_PATH'))
                && $decodedUrl[0] !== '/' && strpbrk($decodedUrl, '*:|"<>') === false && !str_contains($decodedUrl, '\\\\')
            ) {
                $sanitizedUrl = ‪$url;
            }
        }
        if (!empty(‪$url) && empty($sanitizedUrl)) {
            static::getLogger()->notice('The URL "{url}" is not considered to be local and was denied.', ['url' => ‪$url]);
        }
        return $sanitizedUrl;
    }
 
    public static function upload_copy_move($source, $destination)
    {
        if (is_array(‪$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS'][\‪TYPO3\CMS\Core\Utility\GeneralUtility::class]['moveUploadedFile'] ?? null)) {
            $params = ['source' => $source, 'destination' => $destination, 'method' => 'upload_copy_move'];
            foreach (‪$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS'][\‪TYPO3\CMS\Core\Utility\GeneralUtility::class]['moveUploadedFile'] as $hookMethod) {
                $fakeThis = null;
                self::callUserFunction($hookMethod, $params, $fakeThis);
            }
        }
 
        $result = false;
        if (is_uploaded_file($source)) {
            // Return the value of move_uploaded_file, and if FALSE the temporary $source is still
            // around so the user can use unlink to delete it:
            $result = move_uploaded_file($source, $destination);
        } else {
            @copy($source, $destination);
        }
        // Change the permissions of the file
        ‪self::fixPermissions($destination);
        // If here the file is copied and the temporary $source is still around,
        // so when returning FALSE the user can try unlink to delete the $source
        return $result;
    }
 
    public static function upload_to_tempfile($uploadedFileName)
    {
        if (is_uploaded_file($uploadedFileName)) {
            $tempFile = self::tempnam('upload_temp_');
            if (is_array(‪$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS'][\‪TYPO3\CMS\Core\Utility\GeneralUtility::class]['moveUploadedFile'] ?? null)) {
                $params = ['source' => $uploadedFileName, 'destination' => $tempFile, 'method' => 'upload_to_tempfile'];
                foreach (‪$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS'][\‪TYPO3\CMS\Core\Utility\GeneralUtility::class]['moveUploadedFile'] as $hookMethod) {
                    $fakeThis = null;
                    self::callUserFunction($hookMethod, $params, $fakeThis);
                }
            }
 
            move_uploaded_file($uploadedFileName, $tempFile);
            return @is_file($tempFile) ? $tempFile : '';
        }
 
        return '';
    }
 
    public static function unlink_tempfile($uploadedTempFileName)
    {
        if ($uploadedTempFileName) {
            $uploadedTempFileName = self::fixWindowsFilePath($uploadedTempFileName);
            if (
                self::validPathStr($uploadedTempFileName)
                && (
                    str_starts_with($uploadedTempFileName, ‪Environment::getPublicPath() . '/typo3temp/')
                    || str_starts_with($uploadedTempFileName, ‪Environment::getVarPath() . '/')
                )
                && @is_file($uploadedTempFileName)
            ) {
                if (unlink($uploadedTempFileName)) {
                    return true;
                }
            }
        }
 
        return null;
    }
 
    public static function tempnam($filePrefix, $fileSuffix = '')
    {
        $temporaryPath = ‪Environment::getVarPath() . '/transient/';
        if (!is_dir($temporaryPath)) {
            ‪self::mkdir_deep($temporaryPath);
        }
        if ($fileSuffix === '') {
            $path = (string)tempnam($temporaryPath, $filePrefix);
            $tempFileName = $temporaryPath . ‪PathUtility::basename($path);
        } else {
            do {
                $tempFileName = $temporaryPath . $filePrefix . random_int(1, PHP_INT_MAX) . $fileSuffix;
            } while (file_exists($tempFileName));
            touch($tempFileName);
            clearstatcache(false, $tempFileName);
        }
        return $tempFileName;
    }
 
    public static function callUserFunction($funcName, &$params, ?object $ref = null)
    {
        // Check if we're using a closure and invoke it directly.
        if (is_object($funcName) && is_a($funcName, \Closure::class)) {
            return call_user_func_array($funcName, [&$params, &$ref]);
        }
        $funcName = trim($funcName);
        $parts = explode('->', $funcName);
        // Call function or method
        if (count($parts) === 2) {
            // It's a class/method
            // Check if class/method exists:
            if (class_exists($parts[0])) {
                // Create object
                $classObj = self::makeInstance($parts[0]);
                $methodName = (string)$parts[1];
                $callable = [$classObj, $methodName];
                if (is_callable($callable)) {
                    // Call method:
                    $content = call_user_func_array($callable, [&$params, &$ref]);
                } else {
                    throw new \InvalidArgumentException('No method name \'' . $parts[1] . '\' in class ' . $parts[0], 1294585865);
                }
            } else {
                throw new \InvalidArgumentException('No class named ' . $parts[0], 1294585866);
            }
        } elseif (function_exists($funcName) && is_callable($funcName)) {
            // It's a function
            $content = call_user_func_array($funcName, [&$params, &$ref]);
        } else {
            // Usually this will be annotated by static code analysis tools, but there's no native "not empty string" type
            throw new \InvalidArgumentException('No function named: ' . $funcName, 1294585867);
        }
        return $content;
    }
 
    public static function setContainer(ContainerInterface ‪$container): void
    {
        self::$container = ‪$container;
    }
 
    public static function getContainer(): ContainerInterface
    {
        if (self::$container === null) {
            throw new \LogicException('PSR-11 Container is not available', 1549404144);
        }
        return ‪self::$container;
    }
 
    public static function makeInstance(string $className, mixed ...$constructorArguments): object
    {
        // PHPStan will complain about this check. That's okay as we're checking a contract violation here.
        if ($className === '') {
            throw new \InvalidArgumentException('$className must be a non empty string.', 1288965219);
        }
        // Never instantiate with a beginning backslash, otherwise things like singletons won't work.
        if (str_starts_with($className, '\\')) {
            throw new \InvalidArgumentException(
                '$className "' . $className . '" must not start with a backslash.',
                1420281366
            );
        }
        if (isset(static::$finalClassNameCache[$className])) {
            $finalClassName = static::$finalClassNameCache[$className];
        } else {
            $finalClassName = self::getClassName($className);
            static::$finalClassNameCache[$className] = $finalClassName;
        }
        // Return singleton instance if it is already registered
        if (isset(self::$singletonInstances[$finalClassName])) {
            return self::$singletonInstances[$finalClassName];
        }
        // Return instance if it has been injected by addInstance()
        if (
            isset(self::$nonSingletonInstances[$finalClassName])
            && !empty(self::$nonSingletonInstances[$finalClassName])
        ) {
            return array_shift(self::$nonSingletonInstances[$finalClassName]);
        }
 
        // Read service and prototypes from the DI container, this is required to
        // support classes that require dependency injection.
        // We operate on the original class name on purpose, as class overrides
        // are resolved inside the container
        if (self::$container !== null && $constructorArguments === [] && self::$container->has($className)) {
            return self::$container->get($className);
        }
 
        // Create new instance and call constructor with parameters
        $instance = new $finalClassName(...$constructorArguments);
        // Register new singleton instance, but only if it is not a known PSR-11 container service
        if ($instance instanceof SingletonInterface && !(self::$container !== null && self::$container->has($className))) {
            self::$singletonInstances[$finalClassName] = $instance;
        }
        if ($instance instanceof LoggerAwareInterface) {
            $instance->setLogger(static::makeInstance(LogManager::class)->getLogger($className));
        }
        return $instance;
    }
 
    public static function makeInstanceForDi(string $className, ...$constructorArguments): object
    {
        $finalClassName = static::$finalClassNameCache[$className] ?? static::$finalClassNameCache[$className] = self::getClassName($className);
 
        // Return singleton instance if it is already registered (currently required for unit and functional tests)
        if (isset(self::$singletonInstances[$finalClassName])) {
            return self::$singletonInstances[$finalClassName];
        }
        // Create new instance and call constructor with parameters
        return new $finalClassName(...$constructorArguments);
    }
 
    public static function getClassName($className)
    {
        if (class_exists($className)) {
            while (static::classHasImplementation($className)) {
                $className = static::getImplementationForClass($className);
            }
        }
        return ‪ClassLoadingInformation::getClassNameForAlias($className);
    }
 
    protected static function getImplementationForClass($className)
    {
        return ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['Objects'][$className]['className'];
    }
 
    protected static function classHasImplementation($className)
    {
        return !empty(‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['Objects'][$className]['className']);
    }
 
    public static function setSingletonInstance($className, SingletonInterface $instance)
    {
        self::checkInstanceClassName($className, $instance);
        // Check for XCLASS registration (same is done in makeInstance() in order to store the singleton of the final class name)
        $finalClassName = self::getClassName($className);
        self::$singletonInstances[$finalClassName] = $instance;
    }
 
    public static function removeSingletonInstance($className, SingletonInterface $instance)
    {
        self::checkInstanceClassName($className, $instance);
        if (!isset(self::$singletonInstances[$className])) {
            throw new \InvalidArgumentException('No Instance registered for ' . $className . '.', 1394099179);
        }
        if ($instance !== self::$singletonInstances[$className]) {
            throw new \InvalidArgumentException('The instance you are trying to remove has not been registered before.', 1394099256);
        }
        unset(self::$singletonInstances[$className]);
    }
 
    public static function resetSingletonInstances(array $newSingletonInstances)
    {
        static::$singletonInstances = [];
        foreach ($newSingletonInstances as $className => $instance) {
            static::setSingletonInstance($className, $instance);
        }
    }
 
    public static function getSingletonInstances()
    {
        return static::$singletonInstances;
    }
 
    public static function getInstances()
    {
        return static::$nonSingletonInstances;
    }
 
    public static function addInstance($className, $instance)
    {
        self::checkInstanceClassName($className, $instance);
        if ($instance instanceof SingletonInterface) {
            throw new \InvalidArgumentException('$instance must not be an instance of TYPO3\\CMS\\Core\\SingletonInterface. For setting singletons, please use setSingletonInstance.', 1288969325);
        }
        if (!isset(self::$nonSingletonInstances[$className])) {
            self::$nonSingletonInstances[$className] = [];
        }
        self::$nonSingletonInstances[$className][] = $instance;
    }
 
    protected static function checkInstanceClassName($className, $instance)
    {
        if ($className === '') {
            throw new \InvalidArgumentException('$className must not be empty.', 1288967479);
        }
        if (!$instance instanceof $className) {
            throw new \InvalidArgumentException('$instance must be an instance of ' . $className . ', but actually is an instance of ' . get_class($instance) . '.', 1288967686);
        }
    }
 
    public static function purgeInstances()
    {
        self::$container = null;
        self::$singletonInstances = [];
        self::$nonSingletonInstances = [];
    }
 
    public static function flushInternalRuntimeCaches()
    {
        self::$finalClassNameCache = [];
        self::$indpEnvCache = [];
    }
 
    public static function makeInstanceService(string $serviceType, string $serviceSubType = '', array $excludeServiceKeys = []): array|object|false
    {
        $error = false;
        $requestInfo = [
            'requestedServiceType' => $serviceType,
            'requestedServiceSubType' => $serviceSubType,
            'requestedExcludeServiceKeys' => $excludeServiceKeys,
        ];
        while ($info = ‪ExtensionManagementUtility::findService($serviceType, $serviceSubType, $excludeServiceKeys)) {
            // provide information about requested service to service object
            $info = array_merge($info, $requestInfo);
 
            $className = $info['className'];
            $obj = self::makeInstance($className);
            if (is_object($obj)) {
                if (!is_callable([$obj, 'init'])) {
                    self::getLogger()->error('Requested service {class} has no init() method.', [
                        'class' => $info['className'],
                        'service' => $info,
                    ]);
                    throw new \RuntimeException('Broken service: ' . $info['className'], 1568119209);
                }
                $obj->info = $info;
                // service available?
                if ($obj->init()) {
                    return $obj;
                }
                $error = $obj->getLastErrorArray();
                unset($obj);
            }
 
            // deactivate the service
            ‪ExtensionManagementUtility::deactivateService($info['serviceType'], $info['serviceKey']);
        }
        return $error;
    }
 
    public static function quoteJSvalue($value)
    {
        $json = (string)json_encode(
            (string)$value,
            JSON_HEX_AMP | JSON_HEX_APOS | JSON_HEX_QUOT | JSON_HEX_TAG
        );
 
        return strtr(
            $json,
            [
                '"' => '\'',
                '\\\\' => '\\u005C',
                ' ' => '\\u0020',
                '!' => '\\u0021',
                '\\t' => '\\u0009',
                '\\n' => '\\u000A',
                '\\r' => '\\u000D',
            ]
        );
    }
 
    public static function jsonEncodeForHtmlAttribute($value, bool $useHtmlEntities = true): string
    {
        $json = (string)json_encode($value, JSON_HEX_AMP | JSON_HEX_APOS | JSON_HEX_QUOT | JSON_HEX_TAG);
        return $useHtmlEntities ? htmlspecialchars($json) : $json;
    }
 
    public static function jsonEncodeForJavaScript($value): string
    {
        $json = (string)json_encode($value, JSON_HEX_AMP | JSON_HEX_APOS | JSON_HEX_QUOT | JSON_HEX_TAG);
        return strtr(
            $json,
            [
                // comments below refer to JSON-encoded data
                '\\\\' => '\\\\u005C', // `"\\Vendor\\Package"` -> `"\\u005CVendor\\u005CPackage"`
                '\\t' => '\\u0009', // `"\t"` -> `"\u0009"`
                '\\n' => '\\u000A', // `"\n"` -> `"\u000A"`
                '\\r' => '\\u000D', // `"\r"` -> `"\u000D"`
            ]
        );
    }
 
    protected static function getLogger()
    {
        return static::makeInstance(LogManager::class)->getLogger(__CLASS__);
    }
}