Code Duplication    Length = 21-21 lines in 2 locations

typo3/sysext/core/Classes/Utility/GeneralUtility.php 2 locations

@@ 2644-2664 (lines=21) @@
2641
                break;
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            case 'REMOTE_ADDR':
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                $retVal = $_SERVER['REMOTE_ADDR'];
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                if (self::cmpIP($_SERVER['REMOTE_ADDR'], $GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyIP'])) {
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                    $ip = self::trimExplode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
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                    // Choose which IP in list to use
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                    if (!empty($ip)) {
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                        switch ($GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyHeaderMultiValue']) {
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                            case 'last':
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                                $ip = array_pop($ip);
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                                break;
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                            case 'first':
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                                $ip = array_shift($ip);
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                                break;
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                            case 'none':
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                            default:
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                                $ip = '';
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                        }
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                    }
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                    if (self::validIP($ip)) {
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                        $retVal = $ip;
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                    }
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                }
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                break;
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            case 'HTTP_HOST':
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                // if it is not set we're most likely on the cli
@@ 2669-2689 (lines=21) @@
2666
            case 'HTTP_HOST':
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                // if it is not set we're most likely on the cli
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                $retVal = isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : null;
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                if (isset($_SERVER['REMOTE_ADDR']) && static::cmpIP($_SERVER['REMOTE_ADDR'], $GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyIP'])) {
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                    $host = self::trimExplode(',', $_SERVER['HTTP_X_FORWARDED_HOST']);
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                    // Choose which host in list to use
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                    if (!empty($host)) {
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                        switch ($GLOBALS['TYPO3_CONF_VARS']['SYS']['reverseProxyHeaderMultiValue']) {
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                            case 'last':
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                                $host = array_pop($host);
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                                break;
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                            case 'first':
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                                $host = array_shift($host);
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                                break;
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                            case 'none':
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                            default:
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                                $host = '';
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                        }
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                    }
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                    if ($host) {
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                        $retVal = $host;
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                    }
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                }
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                if (!static::isAllowedHostHeaderValue($retVal)) {
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                    throw new \UnexpectedValueException(
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                        'The current host header value does not match the configured trusted hosts pattern! Check the pattern defined in $GLOBALS[\'TYPO3_CONF_VARS\'][\'SYS\'][\'trustedHostsPattern\'] and adapt it, if you want to allow the current host header \'' . $retVal . '\' for your installation.',