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<?php
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/**
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* UpgradeHelper.php
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*
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* @category Core
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* @package Core_Upgrade
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* @copyright Werner v.d.Decken <wkl@isteam.de>
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* @author Werner v.d.Decken <wkl@isteam.de>
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* @license http://www.gnu.org/licenses/gpl.html GPL License
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* @version 0.0.1
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* @revision $Revision: $
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* @link $HeadURL: $
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* @lastmodified $Date: $
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* @since File available since 17.03.2013
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* @description some helper function for upgrade-script.php
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*/
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class UpgradeHelper {
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/**
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* Compare available tables against a list of tables
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* @param array list of needed table names without TablePrefix
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* @return array list of missing tables
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* @description this method is the replaement for self::existsAllTables()
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*/
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public static function getMissingTables(array $aTablesList)
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{
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$aTablesList = array_flip($aTablesList);
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$oDb = WbDatabase::getInstance();
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$sPattern = addcslashes ( $oDb->TablePrefix, '%_' );
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if (($oTables = $oDb->query( 'SHOW TABLES LIKE "'.$sPattern.'%"'))) {
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while ($aTable = $oTables->fetchRow(MYSQL_NUM)) {
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$sTable = preg_replace('/^'.preg_quote($oDb->TablePrefix, '/').'/s', '', $aTable[0]);
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if (isset($aTablesList[$sTable])) {
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unset($aTablesList[$sTable]);
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}
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}
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}
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return array_flip($aTablesList);
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}
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/**
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* Alias for self::getMissingTables()
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* @param array list of needed table names without TablePrefix
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* @return array list of missing tables
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*/
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public static function existsAllTables(array $aTablesList)
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{
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return self::getMissingTables($aTablesList);
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}
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/**
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* Sanitize and repair Pagetree links
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* @return boolean|int number of updated records or false on error
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*/
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public static function sanitizePagesTreeLinkStructure()
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{
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$oDb = WbDatabase::getInstance();
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$iCounter = 0;
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$aPages = array();
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try {
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$sql = 'SELECT `page_id`, `link`, `page_trail` '
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. 'FROM `'.$oDb->TablePrefix.'pages` '
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. 'ORDER BY `page_id`';
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$oPages = $oDb->doQuery($sql);
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// read 'page_id', 'link' and 'page_trail' from all pages
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while ($aPage = $oPages->fetchRow(MYSQL_ASSOC)) {
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// extact filename only from complete link
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$aPages[$aPage['page_id']]['filename'] = preg_replace('/.*?\/([^\/]*$)/', '\1', $aPage['link']);
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$aPages[$aPage['page_id']]['page_trail'] = $aPage['page_trail'];
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$aPages[$aPage['page_id']]['link'] = $aPage['link'];
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}
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foreach ($aPages as $iKey=>$aRecord) {
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// iterate all pages
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$aTmp = array();
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$aIds = explode(',', $aRecord['page_trail']);
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// rebuild link from filenames using page_trail
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foreach($aIds as $iId) {
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$aTmp[] = $aPages[$iId]['filename'];
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}
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$sLink = '/'.implode('/', $aTmp);
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if ($sLink != $aPages[$iKey]['link']) {
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// update page if old link is different to new generated link
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$sql = 'UPDATE `'.$oDb->TablePrefix.'pages` '
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. 'SET `link`=\''.$sLink.'\' '
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. 'WHERE `page_id`='.$iKey;
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$oDb->doQuery($sql);
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$iCounter++;
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}
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}
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} catch(WbDatabaseException $e) {
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return false;
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}
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return $iCounter;
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}
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/**
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*
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* @param string $sMsg Message to show
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*/
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public static function dieWithMessage($sMsg)
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{
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$sMsg = 'Fatal error occured during initial startup.<br /><br />'.PHP_EOL.$sMsg
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. '<br />'.PHP_EOL.'Please correct these errors and then '
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. '<a href="http://'.$_SERVER["HTTP_HOST"].$_SERVER["SCRIPT_NAME"].'" '
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. 'title="restart">klick here to restart the upgrade-script</a>.<br />'.PHP_EOL;
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die($sMsg);
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}
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/**
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*
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* @param string $sAppPath path to the current installation
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* @return boolean
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*/
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public static function checkSetupFiles($sAppPath)
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{
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if (defined('DB_PASSWORD')) {
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// old config.php is active
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if (!is_writable($sAppPath.'config.php') || !is_writable($sAppPath.'config.php.new') || !is_writable($sAppPath.'setup.ini.php.new'))
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{
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// stop script if there's an error occured
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$sMsg = 'Following files must exist and be writable to run upgrade:<br />'
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. '<ul><li>config.php</li>'.(file_exists($sAppPath.'config.php.new') ? '<li>config.php.new</li>' : '')
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. '<li>setup.ini.php.new</li></ul>';
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self::dieWithMessage($sMsg);
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} else { // ok, let's change the files now!
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if (file_exists($aAppPath.'setup.ini.php')) {
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// if 'setup.ini.php' exists
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if (!is_writeable($aAppPath.'setup.ini.php')) {
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// but it's not writable
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$sMsg = 'The file \'setup.ini.php\' already exists but is not writeable!';
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self::dieWithMessage($sMsg);
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}
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} else {
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// try to rename 'setup.ini.php.new' into 'setup.ini.php'
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if (!rename($aAppPath.'setup.ini.php.new', $aAppPath.'setup.ini.php')) {
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$sMsg = 'Can not rename \''.$aAppPath.'setup.ini.php.new\' into \''.$aAppPath.'setup.ini.php\' !!<br />'
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. 'Create an empty file \''.$aAppPath.'setup.ini.php\' and make it writeable for the server!';
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self::dieWithMessage($sMsg);
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}
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}
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// now first read constants from old config.php
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$sContent = file_get_contents($sAppPath.'config.php');
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$sPattern = '/^\s*define\s*\(\s*([\'\"])(.*?)\1\s*,.*;\s*$/m';
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if (preg_match_all($sPattern, $sContent, $aMatches)) {
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// get all already defined consts
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$aAllConsts = get_defined_constants(true);
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$aSetupConsts = array();
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// collect the needed values from defined consts
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foreach($aMatches[2] as $sConstName) {
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$aSetupConsts[$sConstName] = (isset($aAllConsts['user'][$sConstName]) ? $aAllConsts['user'][$sConstName] : '');
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}
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// try to sanitize available values
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$aSetupConsts['DB_TYPE'] = ((isset($aSetupConsts['DB_TYPE']) && $aSetupConsts['DB_TYPE'] != '') ? $aSetupConsts['DB_TYPE'] : 'mysql');
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$aSetupConsts['DB_PORT'] = ((isset($aSetupConsts['DB_PORT']) && $aSetupConsts['DB_PORT'] != '') ? $aSetupConsts['DB_PORT'] : '3306');
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$aSetupConsts['DB_CHARSET'] = (isset($aSetupConsts['DB_CHARSET']) ? $aSetupConsts['DB_CHARSET'] : '');
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$aSetupConsts['DB_CHARSET'] = preg_replace('/[^0-9a-z]*/i', '', $aSetupConsts['DB_CHARSET']);
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$aSetupConsts['TABLE_PREFIX'] = (isset($aSetupConsts['TABLE_PREFIX']) ? $aSetupConsts['TABLE_PREFIX'] : '');
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$aSetupConsts['ADMIN_DIRECTORY'] = trim(str_replace('\\', '/', preg_replace('/^'.preg_quote(WB_PATH, '/').'/', '', ADMIN_PATH)), '/').'/';
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$aSetupConsts['WB_URL'] = rtrim(str_replace('\\', '/', WB_URL), '/').'/';
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// Try and write settings to config file
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if (writeSetupIni($sAppPath, $aSetupConsts)) {
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if (writeConfig($sAppPath)) {
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return true;
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} else {
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$sMsg ='Error writing \''.$sAppPath.'config.php\'!';
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}
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} else {
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$sMsg ='Error writing \''.$sAppPath.'setup.ini.php\'!';
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}
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} else {
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$sMsg = 'No valid content found in \''.$sAppPath.'config.php\'!';
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}
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self::dieWithMessage($sMsg);
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}
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} else {
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$sFileContent = file_get_contents($sAppPath.'config.php');
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if (preg_match('/\s*define\s*\(.*\)\s*;/i', $sFileContent)) {
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// if config.php does not contain any defines
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if (is_writable($sAppPath.'config.php')) {
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// overwrite config.php with default content for compatibility
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if (self::writeConfig($sAppPath.'config.php')) {
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return true;
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} else {
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$sMsg ='Error writing \''.$sAppPath.'config.php\'!';
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}
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} else {
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$sMsg ='File is not writable \''.$sAppPath.'config.php\'!';
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}
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self::dieWithMessage($sMsg);
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}
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}
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}
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/**
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*
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* @param string $sAppPath the path where setup.ini.php is located
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* @param array $aSetupValues
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* @return boolean
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*/
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public static function writeSetupIni($sAppPath, array $aSetupValues)
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{
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$sSetupContent =
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";<?php die('sorry, illegal file access'); ?>#####\n"
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.";################################################\n"
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."; WebsiteBaker configuration file\n"
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."; auto generated ".date('Y-m-d h:i:s A e ')."\n"
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.";################################################\n"
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."[Constants]\n"
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."DEBUG = false\n"
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."AppUrl = \"".$aSetupValues['WB_URL']."\"\n"
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."AcpDir = \"".$aSetupValues['ADMIN_DIRECTORY']."\"\n"
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.";##########\n"
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."[DataBase]\n"
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."type = \"".$aSetupValues['DB_TYPE']."\"\n"
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."user = \"".$aSetupValues['DB_USERNAME']."\"\n"
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."pass = \"".$aSetupValues['DB_PASSWORD']."\"\n"
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."host = \"".$aSetupValues['DB_HOST']."\"\n"
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."port = \"".$aSetupValues['DB_PORT']."3306\"\n"
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."name = \"".$aSetupValues['DB_NAME']."\"\n"
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."charset = \"".$aSetupValues['DB_CHARSET']."\"\n"
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."table_prefix = \"".$aSetupValues['TABLE_PREFIX']."\"\n"
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.";\n"
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.";################################################\n";
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$sSetupFile = $sAppPath.'setup.ini.php';
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if (file_put_contents($sSetupFile, $sSetupContent)) {
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return true;
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}
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return false;
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}
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/**
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*
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* @param string $sAppPath the path where config.php is located
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* @return boolean
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*/
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public static function writeConfig($sAppPath)
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{
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$sConfigContent = "<?php\n"
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."/* this file is for backward compatibility only */\n"
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."/* never put any code in this file! */\n"
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."include_once(dirname(__FILE__).'/framework/initialize.php');\n";
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$sConfigFile = $sAppPath.'config.php';
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if (file_put_contents($sConfigFile, $sConfigContent)) {
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return true;
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}
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return false;
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}
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} // end of class UpgradeHelper
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