class.tx_ter_helper.php 24.1 KB
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<?php
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/*
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 * 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!
 */
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/**
 * Helper functions used in the TER API
 *
 * $Id$
 *
 * @author    Robert Lemke <robert@typo3.org>
 */
/**
 * [CLASS/FUNCTION INDEX of SCRIPT]
 *
 *
 *
 *  103: class tx_ter_helper
 *  114:     public function __construct($pluginObj)
 *  127:     public function getValidUser ($accountData)
 *  162:     public function extensionKeyIsAvailable($extensionKey)
 *  188:     public function getExtensionKeyRecord ($extKey)
 *  215:     public function getLatestVersionNumberOfExtension ($extensionKey)
 *  245:     public function requestUpdateOfExtensionIndexFile()
 *  260:     public function writeExtensionIndexfile()
 *  358:     public function xmlentities ($string)
 *
 * TOTAL FUNCTIONS: 8
 * (This index is automatically created/updated by the extension "extdeveval")
 *
 */

use TYPO3\CMS\Core\Utility\GeneralUtility;

// Make sure that we are executed only in TYPO3 context
if (!defined('TYPO3_MODE')) {
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    die('Access denied.');
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}

// Error codes:
define('TX_TER_ERROR_GENERAL_EXTREPDIRDOESNTEXIST', '100');
define('TX_TER_ERROR_GENERAL_NOUSERORPASSWORD', '101');
define('TX_TER_ERROR_GENERAL_USERNOTFOUND', '102');
define('TX_TER_ERROR_GENERAL_WRONGPASSWORD', '103');
define('TX_TER_ERROR_GENERAL_DATABASEERROR', '104');
define('TX_TER_ERROR_GENERAL_EXTENSIONCONTAINSNOFILES', '105');

define('TX_TER_ERROR_UPLOADEXTENSION_EXTENSIONDOESNTEXIST', '202');
define('TX_TER_ERROR_UPLOADEXTENSION_EXTENSIONCONTAINSNOFILES', '203');
define('TX_TER_ERROR_UPLOADEXTENSION_WRITEERRORWHILEWRITINGFILES', '204');
define('TX_TER_ERROR_UPLOADEXTENSION_EXTENSIONTOOBIG', '205');
define('TX_TER_ERROR_UPLOADEXTENSION_EXISTINGEXTENSIONRECORDNOTFOUND', '206');
define('TX_TER_ERROR_UPLOADEXTENSION_FILEMD5DOESNOTMATCH', '207');
define('TX_TER_ERROR_UPLOADEXTENSION_ACCESSDENIED', '208');
define('TX_TER_ERROR_UPLOADEXTENSION_TYPO3DEPENDENCYINCORRECT', '209');
define('TX_TER_ERROR_UPLOADEXTENSION_TYPO3DEPENDENCYCHECKFAILED', '210');
define('TX_TER_ERROR_UPLOADEXTENSION_EXTENSIONVERSIONEXISTS', '211');

define('TX_TER_ERROR_REGISTEREXTENSIONKEY_DBERRORWHILEINSERTINGKEY', '300');

define('TX_TER_ERROR_DELETEEXTENSIONKEY_ACCESSDENIED', '500');
define('TX_TER_ERROR_DELETEEXTENSIONKEY_KEYDOESNOTEXIST', '501');
define('TX_TER_ERROR_DELETEEXTENSIONKEY_CANTDELETEBECAUSEVERSIONSEXIST', '502');

define('TX_TER_ERROR_MODIFYEXTENSIONKEY_ACCESSDENIED', '600');
define('TX_TER_ERROR_MODIFYEXTENSIONKEY_SETTINGTOTHISOWNERISNOTPOSSIBLE', '601');
define('TX_TER_ERROR_MODIFYEXTENSIONKEY_KEYDOESNOTEXIST', '602');

define('TX_TER_ERROR_SETREVIEWSTATE_NOUSERGROUPDEFINED', '700');
define('TX_TER_ERROR_SETREVIEWSTATE_ACCESSDENIED', '701');
define('TX_TER_ERROR_SETREVIEWSTATE_EXTENSIONVERSIONDOESNOTEXIST', '702');

define('TX_TER_ERROR_INCREASEEXTENSIONDOWNLOADCOUNTER_NOUSERGROUPDEFINED', '800');
define('TX_TER_ERROR_INCREASEEXTENSIONDOWNLOADCOUNTER_ACCESSDENIED', '801');
define('TX_TER_ERROR_INCREASEEXTENSIONDOWNLOADCOUNTER_EXTENSIONVERSIONDOESNOTEXIST', '802');
define('TX_TER_ERROR_INCREASEEXTENSIONDOWNLOADCOUNTER_INCREMENTORNOTPOSITIVEINTEGER', '803');
define('TX_TER_ERROR_INCREASEEXTENSIONDOWNLOADCOUNTER_EXTENSIONKEYDOESNOTEXIST', '804');

define('TX_TER_ERROR_DELETEEXTENSION_ACCESS_DENIED', '900');
define('TX_TER_ERROR_DELETEEXTENSION_EXTENSIONDOESNTEXIST', '901');

// Result codes:
define('TX_TER_RESULT_GENERAL_OK', '10000');
define('TX_TER_RESULT_ERRORS_OCCURRED', '10001');

define('TX_TER_RESULT_EXTENSIONKEYALREADYEXISTS', '10500');
define('TX_TER_RESULT_EXTENSIONKEYDOESNOTEXIST', '10501');
define('TX_TER_RESULT_EXTENSIONKEYNOTVALID', '10502');
define('TX_TER_RESULT_EXTENSIONKEYSUCCESSFULLYREGISTERED', '10503');
define('TX_TER_RESULT_EXTENSIONSUCCESSFULLYUPLOADED', '10504');
define('TX_TER_RESULT_EXTENSIONSUCCESSFULLYDELETED', '10505');


/**
 * TYPO3 Extension Repository, helper functions
 *
 * @author    Robert Lemke <robert@typo3.org>
 * @package TYPO3
 * @subpackage tx_ter_helper
 */
class tx_ter_helper
{

    protected $pluginObj;

    /**
     * Constructor
     *
     * @param    object $pluginObj : Reference to parent object
     * @return    void
     * @access    public
     */
    public function __construct($pluginObj)
    {
        $this->pluginObj = $pluginObj;
    }


    /**
     * This verifies the given fe_users username/password.
     * Either the fe_user row is returned or an exception is thrown.
     *
     * @param    object $accountData : Account data information with username, password and upload password
     * @return    mixed        If success, returns array of fe_users, otherwise error string.
     * @access    public
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     * @throws \T3o\Ter\Exception\UnauthorizedException
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     */
    public function getValidUser($accountData)
    {
        if (!strlen($accountData->username) || (!strlen($accountData->password))) {
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            throw new \T3o\Ter\Exception\UnauthorizedException('No user or no password submitted.', TX_TER_ERROR_GENERAL_NOUSERORPASSWORD);
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        }

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        $res = $this->getDatabaseConnection()->exec_SELECTquery(
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            '*',
            'fe_users',
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            'username=' . $this->getDatabaseConnection()->fullQuoteStr($accountData->username, 'fe_users') . $this->getTyposcriptFrontendObject()->sys_page->enableFields('fe_users')
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        );

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        if ($row = $this->getDatabaseConnection()->sql_fetch_assoc($res)) {
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            if (!$this->userIsAlreadyLoggedIn( $accountData
                ) && !$this->ldapValidationSucceeded($accountData)
            ) {
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                throw new \T3o\Ter\Exception\UnauthorizedException('Wrong password.', TX_TER_ERROR_GENERAL_WRONGPASSWORD);
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            }
        } else {
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            throw new \T3o\Ter\Exception\UnauthorizedException('The specified user does not exist. You need to login first on extensions.typo3.org.', TX_TER_ERROR_GENERAL_USERNOTFOUND);
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        }

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        $row['admin'] = $this->userIsAdmin($row['usergroup']) || $this->userIsSecurityTeamMember($row['usergroup']);
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        return $row;
    }

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    /**
     * @param string $userGroupList
     * @return bool
     */
    private function userIsAdmin(string $userGroupList): bool
    {
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        return $this->pluginObj->conf['adminFrontendUsergroupUid'] > 0 && GeneralUtility::inList($userGroupList, (int)$this->pluginObj->conf['adminFrontendUsergroupUid']);
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    }

    /**
     * @param string $userGroupList
     * @return bool
     */
    private function userIsSecurityTeamMember(string $userGroupList): bool
    {
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        return $this->pluginObj->conf['securityTeamFrontendUsergroupUid'] > 0 && GeneralUtility::inList($userGroupList, (int)$this->pluginObj->conf['securityTeamFrontendUsergroupUid']);
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    }

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    /**
     * We check whether a user is logged in by TYPO3
     * because of a sent session cookie
     *
     * @param $accountData
     * @return bool
     */
    private function userIsAlreadyLoggedIn($accountData)
    {
        /** @var \TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController $tsfe */
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        $tsfe = $GLOBALS['TSFE'];
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        if (!empty($tsfe->fe_user->user['username']) && $accountData->username === $tsfe->fe_user->user['username']) {
            return true;
        }

        return false;
    }

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    /**
     * Check if LDAP authenticates the credentials
     *
     * @param stdClass $accountData
     * @return bool
     */
    private function ldapValidationSucceeded(stdClass $accountData): bool
    {
        if (!\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::isLoaded('ig_ldap_sso_auth')) {
            return false;
        }

        /** @var \Causal\IgLdapSsoAuth\Domain\Repository\ConfigurationRepository $configurationRepository */
        $configurationRepository = GeneralUtility::makeInstance(\Causal\IgLdapSsoAuth\Domain\Repository\ConfigurationRepository::class);
        $configurationRecords = $configurationRepository->findAll();

        \Causal\IgLdapSsoAuth\Library\Configuration::initialize('fe', $configurationRecords[0]);

        return (bool)\Causal\IgLdapSsoAuth\Library\Authentication::ldapAuthenticate($accountData->username, $accountData->password);
    }

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    /**
     * Checks for correct account data without throwing an exception.
     * It just returns TRUE / FALSE
     *
     * @param  object $accountData
     * @return boolean
     */
    public function checkValidUser($accountData)
    {
        if (!strlen($accountData->username) || (!strlen($accountData->password))) {
            $success = false;
        } else {
            $success = false;
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            $res = $this->getDatabaseConnection()->exec_SELECTquery(
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                '*',
                'fe_users',
                'username=' . $this->getDatabaseConnection()->fullQuoteStr(
                    $accountData->username,
                    'fe_users'
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                ) . $GLOBALS['TSFE']->sys_page->enableFields('fe_users')
            );

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            if ($row = $this->getDatabaseConnection()->sql_fetch_assoc($res)) {
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                if ($this->ldapValidationSucceeded( $accountData)
                ) {
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                    $success = true;
                }
            }
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            $this->getDatabaseConnection()->sql_free_result($res);
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        }

        return $success;
    }

    /**
     * Checks if the given extension key is unique and not registered yet.
     * Takes underscores into account, so the key "ter_ter" can't be registered
     * if "te_rt_er" or "terter" already exist.
     *
     * @param    string $extensionKey : The extension key to check
     * @return    boolean        Returns TRUE if the extension key is unique and not used yet, otherwise FALSE
     * @access    public
     * @author  Elmar Hinz
     */
    public function extensionKeyIsAvailable($extensionKey)
    {
        $cleanedExtensionKey = str_replace('_', '', $extensionKey);
        $isAvailable = true;

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        $res = $this->getDatabaseConnection()->exec_SELECTquery(
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            'extensionkey',
            'tx_ter_extensionkeys',
            'pid=' . intval($this->pluginObj->extensionsPID)
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        );
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        while ($row = $this->getDatabaseConnection()->sql_fetch_row($res)) {
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            if ($cleanedExtensionKey === str_replace('_', '', $row[0])) {
                $isAvailable = false;
            }
        }

        return $isAvailable;
    }

    /**
     * Based on $extKey this returns the extension-key record.
     *
     * @param    string $extKey : Extension key
     * @return    mixed        The extension key row or FALSE
     * @access    public
     */
    public function getExtensionKeyRecord($extKey)
    {
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        $row = $this->getDatabaseConnection()->exec_SELECTgetSingleRow(
            '*',
            'tx_ter_extensionkeys',
            'extensionkey=' . $this->getDatabaseConnection()->fullQuoteStr($extKey, 'tx_ter_extensionkeys') .
            'AND pid=' . intval($this->pluginObj->extensionsPID) .
            $this->getTyposcriptFrontendObject()->sys_page->enableFields('tx_ter_extensionkeys')
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        );

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        return $row;
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    }

    /**
     * Searches the repository for the highest version number of an upload of the
     * extension specified by $extensionKey. If no upload was found at all, FALSE
     * will be returned. If at least one upload was found, the highest version number
     * following the format major.minor.dev (eg. 4.2.1) will be returned.
     *
     * @param    string $extKey : Extension key
     * @return    mixed        The version number as a string or FALSE
     * @access    public
     */
    public function getLatestVersionNumberOfExtension($extensionKey)
    {
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        $res = $this->getDatabaseConnection()->exec_SELECTquery(
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            'version',
            'tx_ter_extensions',
            'extensionkey=' . $this->getDatabaseConnection()->fullQuoteStr($extensionKey, 'tx_ter_extensions') . '
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				AND pid=' . intval($this->pluginObj->extensionsPID)
        );
        $latestVersion = false;
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        while ($row = $this->getDatabaseConnection()->sql_fetch_assoc($res)) {
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            if (version_compare($row['version'], $latestVersion, '>')) {
                $latestVersion = $row['version'];
            }
        }

        return $latestVersion;
    }

    /**
     * Sets a flag so the cron job knows that the extensions.xml.gz file has to be
     * regenerated. Call this whenever data has changed which also exists in
     * extensions.xml.gz
     *
     * Note: Depending on the cron job it might take a while until the index file really
     *       has been updated. See "cli/build-extension-index.php" for more information
     *
     * @return    void
     * @access    public
     */
    public function requestUpdateOfExtensionIndexFile()
    {
        GeneralUtility::writeFile(
            $this->pluginObj->repositoryDir . 'extensions.xml.gz.needsupdate',
            'Dear cron-job. The extensions.xml.gz file needs to be regenerated, please do so as soon as you find the time for it.' . chr(
                10
            ) . 'Thanks, your TER helper class'
        );
    }

    /**
     * Updates the "extensions.xml" file which contains an index of all uploaded
     * extensions in the TER.
     *
     * @return    void
     * @access    public
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     * @throws \T3o\Ter\Exception\InternalServerErrorException
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     */
    public function writeExtensionIndexfile()
    {
        GeneralUtility::devLog('writing extension index!', 'tx_ter_helper', 0);
        if (!@is_dir($this->pluginObj->repositoryDir)) {
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            throw new \T3o\Ter\Exception\InternalServerErrorException(
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                'Extension repository directory does not exist.',
                TX_TER_ERROR_GENERAL_EXTREPDIRDOESNTEXIST
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            );
        }

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        // Check if update of files requested
        $updateRequestedFile = $this->pluginObj->repositoryDir . 'extensions.xml.gz.needsupdate';
        if (@filemtime($updateRequestedFile) <= @filemtime($this->pluginObj->repositoryDir . 'extensions.xml.gz')) {
            return;
        }

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        $trackTime = microtime();

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        $res = $this->getDatabaseConnection()->exec_SELECTquery(
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            'uid,tstamp,extensionkey,version,title,description,state,reviewstate,category,downloadcounter,t3xfilemd5',
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            'tx_ter_extensions',
            '1'
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        );
        // Read the extension records from the DB:
        $extensionsAndVersionsArr = [];
        $extensionsTotalDownloadsArr = [];
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        while ($row = $this->getDatabaseConnection()->sql_fetch_assoc($res)) {
            $res2 = $this->getDatabaseConnection()->exec_SELECTquery(
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                'ownerusername,downloadcounter',
                'tx_ter_extensionkeys',
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                'extensionkey=' . $this->getDatabaseConnection()->fullQuoteStr($row['extensionkey'], 'tx_ter_extensionkeys')
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            );
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            $extensionKeyRow = $this->getDatabaseConnection()->sql_fetch_assoc($res2);
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            $row['ownerusername'] = $extensionKeyRow['ownerusername'];
            $extensionsTotalDownloadsArr[$row['extensionkey']] = $extensionKeyRow['downloadcounter'];

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            $res2 = $this->getDatabaseConnection()->exec_SELECTquery(
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                'lastuploaddate,uploadcomment,dependencies,composerinfo,authorname,authoremail,authorcompany',
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                'tx_ter_extensiondetails',
                'extensionuid=' . (int)$row['uid']
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            );
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            $detailsRow = $this->getDatabaseConnection()->sql_fetch_assoc($res2);
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            if (is_array($detailsRow)) {
                $row = $row + $detailsRow;
            }
            $extensionsAndVersionsArr [$row['extensionkey']]['versions'][$row['version']] = $row;
        }
        // Prepare the DOM object:
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        $dom = new DOMDocument('1.0', 'utf-8');
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        $dom->formatOutput = true;
        $extensionsObj = $dom->appendChild(new DOMElement('extensions'));

        // Create the nested XML structure:
        foreach ($extensionsAndVersionsArr as $extensionKey => $extensionVersionsArr) {
            $extensionObj = $extensionsObj->appendChild(new DOMElement('extension'));
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            $extensionObj->appendChild(new DOMAttr('extensionkey', $extensionKey));
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            $extensionObj->appendChild(
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                new DOMElement(
                    'downloadcounter',
                    $this->xmlentities($extensionsTotalDownloadsArr[$extensionKey])
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                )
            );

            foreach ($extensionVersionsArr['versions'] as $versionNumber => $extensionVersionArr) {
                $versionObj = $extensionObj->appendChild(new DOMElement('version'));
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                $versionObj->appendChild(new DOMAttr('version', $versionNumber));
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                $versionObj->appendChild(new DOMElement('title', $this->xmlentities($extensionVersionArr['title'])));
                $versionObj->appendChild(new DOMElement('description', $this->xmlentities($extensionVersionArr['description'])));
                $versionObj->appendChild(new DOMElement('state', $this->xmlentities($extensionVersionArr['state'])));
                $versionObj->appendChild(new DOMElement('reviewstate', intval($extensionVersionArr['reviewstate'])));
                $versionObj->appendChild(new DOMElement('category', $this->xmlentities($extensionVersionArr['category'])));
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                if ($extensionVersionArr['category'] === 'distribution') {
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                    $prefixPathToDistributionFiles = 'fileadmin/ter/' . $extensionKey[0] . '/' . $extensionKey[1] . '/' . $extensionKey . '_' . $versionNumber . '_';
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                    $versionObj->appendChild(new DOMElement('distributionImage', $this->xmlentities($prefixPathToDistributionFiles . 'Distribution.png')));
                    $versionObj->appendChild(new DOMElement('distributionImageWelcome', $this->xmlentities($prefixPathToDistributionFiles . 'DistributionWelcome.png')));
                }
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                $versionObj->appendChild(
                    new DOMElement(
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                        'downloadcounter',
                        $this->xmlentities($extensionVersionArr['downloadcounter'])
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                    )
                );
                $versionObj->appendChild(new DOMElement('lastuploaddate', $extensionVersionArr['lastuploaddate']));
                $versionObj->appendChild(
                    new DOMElement(
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                        'uploadcomment',
                        $this->xmlentities($extensionVersionArr['uploadcomment'])
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                    )
                );
                $versionObj->appendChild(new DOMElement('dependencies', $extensionVersionArr['dependencies']));
                $versionObj->appendChild(new DOMElement('composerinfo', $extensionVersionArr['composerinfo']));
                $versionObj->appendChild(new DOMElement('authorname', $this->xmlentities($extensionVersionArr['authorname'])));
                $versionObj->appendChild(new DOMElement('authoremail', $this->xmlentities($extensionVersionArr['authoremail'])));
                $versionObj->appendChild(
                    new DOMElement(
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                        'authorcompany',
                        $this->xmlentities($extensionVersionArr['authorcompany'])
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                    )
                );
                $versionObj->appendChild(
                    new DOMElement(
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                        'ownerusername',
                        $this->xmlentities($extensionVersionArr['ownerusername'])
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                    )
                );
                $versionObj->appendChild(new DOMElement('t3xfilemd5', $extensionVersionArr['t3xfilemd5']));
            }
        }

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        $extensionsObj->appendChild(new DOMComment('Index created at ' . date('D M j G:i:s T Y')));
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        $extensionsObj->appendChild(new DOMComment('Index created in ' . (microtime() - $trackTime) . ' ms'));

        // Write XML data to disk:
        $fh = fopen($this->pluginObj->repositoryDir . 'new-extensions.xml.gz', 'wb');
        if (!$fh) {
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            throw new \T3o\Ter\Exception\InternalServerErrorException(
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                'Write error while writing extensions index file: ' . $this->pluginObj->repositoryDir . 'extensions.xml',
                TX_TER_ERROR_UPLOADEXTENSION_WRITEERRORWHILEWRITINGEXTENSIONSINDEX
            );
        }
        fwrite($fh, gzencode($dom->saveXML(), 9));
        fclose($fh);

        if (!@filesize($this->pluginObj->repositoryDir . 'new-extensions.xml.gz') > 0) {
            GeneralUtility::devLog('Newly created extension index is zero bytes!', 'tx_ter_helper', 0);
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            throw new \T3o\Ter\Exception\InternalServerErrorException(
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                'Write error while writing extensions index file (zero bytes): ' . $this->pluginObj->repositoryDir . 'extensions.xml',
                TX_TER_ERROR_UPLOADEXTENSION_WRITEERRORWHILEWRITINGEXTENSIONSINDEX
            );
        }

        @unlink($this->pluginObj->repositoryDir . 'extensions.xml.gz');
        rename($this->pluginObj->repositoryDir . 'new-extensions.xml.gz', $this->pluginObj->repositoryDir . 'extensions.xml.gz');
        GeneralUtility::writeFile(
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Markus Sommer committed
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            $this->pluginObj->repositoryDir . 'extensions.md5',
            md5_file($this->pluginObj->repositoryDir . 'extensions.xml.gz')
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        );


        // Write serialized array file to disk:
        $fh = fopen($this->pluginObj->repositoryDir . 'new-extensions.bin', 'wb');
        if (!$fh) {
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            throw new \T3o\Ter\Exception\InternalServerErrorException(
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                'Write error while writing extensions index file: ' . $this->pluginObj->repositoryDir . 'extensions.bin',
                TX_TER_ERROR_UPLOADEXTENSION_WRITEERRORWHILEWRITINGEXTENSIONSINDEX
            );
        }
        fwrite($fh, serialize($extensionsAndVersionsArr));
        fclose($fh);

        if (!@filesize($this->pluginObj->repositoryDir . 'new-extensions.bin') > 0) {
            GeneralUtility::devLog('Newly created extension index is zero bytes!', 'tx_ter_helper', 0);
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            throw new \T3o\Ter\Exception\InternalServerErrorException(
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                'Write error while writing extensions index file (zero bytes): ' . $this->pluginObj->repositoryDir . 'extensions.bin',
                TX_TER_ERROR_UPLOADEXTENSION_WRITEERRORWHILEWRITINGEXTENSIONSINDEX
            );
        }

        @unlink($this->pluginObj->repositoryDir . 'extensions.bin');
        rename($this->pluginObj->repositoryDir . 'new-extensions.bin', $this->pluginObj->repositoryDir . 'extensions.bin');
    }

    /**
     * Equivalent to htmlentities but for XML content
     *
     * @param    string $string : String to encode
     * @return    string        &,",',< and > replaced by entities
     * @access    public
     */
    public function xmlentities($string)
    {
        // Until I have found a better solution for guaranteeing valid characters, I use this regex:
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        $string = (preg_replace('/[^\w\s"%&\[\]\(\)\.\,\;\:\/\?\{\}!\$\-\/\@]/u', '', $string));
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        return str_replace(['&', '"', "'", '<', '>'], ['&amp;', '&quot;', '&apos;', '&lt;', '&gt;'], $string);
    }


    /***
     * Load an instance of the BE_USER to use with TCEFORM
     *
     * @param integer $uid UID of the virtual user
     * @param string $username Username
     * @param boolean $isAdmin Set admin rights
     * @return void
     */
    public function loadBackendUser($uid, $username, $isAdmin = false)
    {
        if (!empty($GLOBALS['BE_USER'])) {
            return;
        }

        $GLOBALS['BE_USER'] = GeneralUtility::makeInstance(\TYPO3\CMS\Backend\FrontendBackendUserAuthentication::class);
        $GLOBALS['BE_USER']->user = [
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            'uid' => 0,
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            'username' => $username,
            'admin' => (int)$isAdmin,
        ];
    }


    /**
     * Load an instance of the LANG object
     *
     * @param string $language Used language ident
     * @return void
     */
    public function loadLang($lang = 'default')
    {
        if (!empty($GLOBALS['LANG'])) {
            return;
        }

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        $GLOBALS['LANG'] = GeneralUtility::makeInstance(\TYPO3\CMS\Lang\LanguageService::class);
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        $GLOBALS['LANG']->init($lang);
    }
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    /**
     * @return \TYPO3\CMS\Core\Database\DatabaseConnection
     */
    private function getDatabaseConnection()
    {
        return $GLOBALS['TYPO3_DB'];
    }

    /**
     * @return \TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController
     */
    private function getTyposcriptFrontendObject()
    {
        return $GLOBALS['TSFE'];
    }
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}