<?php /************************************************************************************ ************************************************************************************ ** ** ** If you can read this text in your browser then you don't have PHP installed. ** ** Please install PHP 5.3.3 or higher, preferably PHP 5.3.4+. ** ** ** ************************************************************************************ ************************************************************************************/ /** * @package framework * @subpackage core */ if (version_compare(phpversion(), '5.3.3', '<')) { header("HTTP/1.1 500 Server Error"); echo str_replace('$PHPVersion', phpversion(), file_get_contents("dev/install/php5-required.html")); die(); } /** * Main file that handles every page request. * * The main.php does a number of set-up activities for the request. * * - Includes the first one of the following files that it finds: (root)/_ss_environment.php, * (root)/../_ss_environment.php, or (root)/../../_ss_environment.php * - Gets an up-to-date manifest from {@link ManifestBuilder} * - Sets up error handlers with {@link Debug::loadErrorHandlers()} * - Calls {@link DB::connect()}, passing it the global variable $databaseConfig that should * be defined in an _config.php * - Sets up the default director rules using {@link Director::$rules} * * After that, it calls {@link Director::direct()}, which is responsible for doing most of the * real work. * * CONFIGURING THE WEBSERVER * * To use SilverStripe, every request that doesn't point directly to a file should be rewritten to * framework/main.php?url=(url). For example, http://www.example.com/about-us/rss would be rewritten * to http://www.example.com/framework/main.php?url=about-us/rss * * It's important that requests that point directly to a file aren't rewritten; otherwise, visitors * won't be able to download any CSS, JS, image files, or other downloads. * * On Apache, RewriteEngine can be used to do this. * * @package framework * @subpackage core * @see Director::direct() */ /** * Include the defines that set BASE_PATH, etc */ require_once('core/Constants.php'); // IIS will sometimes generate this. if(!empty($_SERVER['HTTP_X_ORIGINAL_URL'])) { $_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_ORIGINAL_URL']; } // Enable the entity loader to be able to load XML in Zend_Locale_Data libxml_disable_entity_loader(false); /** * Figure out the request URL */ global $url; // Helper to safely parse and load a querystring fragment $parseQuery = function($query) { parse_str($query, $_GET); if ($_GET) $_REQUEST = array_merge((array)$_REQUEST, (array)$_GET); }; // Apache rewrite rules and IIS use this if (isset($_GET['url']) && php_sapi_name() !== 'cli-server') { // Prevent injection of url= querystring argument by prioritising any leading url argument if(isset($_SERVER['QUERY_STRING']) && preg_match('/^(?<url>url=[^&?]*)(?<query>.*[&?]url=.*)$/', $_SERVER['QUERY_STRING'], $results) ) { $queryString = $results['query'].'&'.$results['url']; $parseQuery($queryString); } $url = $_GET['url']; // IIS includes get variables in url $i = strpos($url, '?'); if($i !== false) { $url = substr($url, 0, $i); } // Lighttpd and PHP 5.4's built-in webserver use this } else { // Get raw URL -- still needs to be decoded below (after parsing out query string). $url = $_SERVER['REQUEST_URI']; // Querystring args need to be explicitly parsed if(strpos($url,'?') !== false) { list($url, $query) = explode('?',$url,2); $parseQuery($query); } // Decode URL now that it has been separated from query string. $url = urldecode($url); // Pass back to the webserver for files that exist if(php_sapi_name() === 'cli-server' && file_exists(BASE_PATH . $url) && is_file(BASE_PATH . $url)) { return false; } } // Remove base folders from the URL if webroot is hosted in a subfolder if (substr(strtolower($url), 0, strlen(BASE_URL)) == strtolower(BASE_URL)) $url = substr($url, strlen(BASE_URL)); /** * Include SilverStripe's core code */ require_once('core/startup/ErrorControlChain.php'); require_once('core/startup/ParameterConfirmationToken.php'); // Prepare tokens and execute chain $reloadToken = ParameterConfirmationToken::prepare_tokens(array('isTest', 'isDev', 'flush')); $chain = new ErrorControlChain(); $chain ->then(function($chain) use ($reloadToken) { // If no redirection is necessary then we can disable error supression if (!$reloadToken) $chain->setSuppression(false); // Load in core require_once('core/Core.php'); // Connect to database require_once('model/DB.php'); global $databaseConfig; if ($databaseConfig) DB::connect($databaseConfig); // Check if a token is requesting a redirect if (!$reloadToken) return; // Otherwise, we start up the session if needed if(!isset($_SESSION) && Session::request_contains_session_id()) { Session::start(); } // Next, check if we're in dev mode, or the database doesn't have any security data, or we are admin if (Director::isDev() || !Security::database_is_ready() || Permission::check('ADMIN')) { return $reloadToken->reloadWithToken(); } // Fail and redirect the user to the login page $loginPage = Director::absoluteURL(Config::inst()->get('Security', 'login_url')); $loginPage .= "?BackURL=" . urlencode($_SERVER['REQUEST_URI']); header('location: '.$loginPage, true, 302); die; }) // Finally if a token was requested but there was an error while figuring out if it's allowed, do it anyway ->thenIfErrored(function() use ($reloadToken){ if ($reloadToken) { $reloadToken->reloadWithToken(); } }) ->execute(); global $databaseConfig; // Redirect to the installer if no database is selected if(!isset($databaseConfig) || !isset($databaseConfig['database']) || !$databaseConfig['database']) { if(!file_exists(BASE_PATH . '/install.php')) { header($_SERVER['SERVER_PROTOCOL'] . " 500 Server Error"); die('SilverStripe Framework requires a $databaseConfig defined.'); } $s = (isset($_SERVER['SSL']) || (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off')) ? 's' : ''; $installURL = "http$s://" . $_SERVER['HTTP_HOST'] . BASE_URL . '/install.php'; // The above dirname() will equate to "\" on Windows when installing directly from http://localhost (not using // a sub-directory), this really messes things up in some browsers. Let's get rid of the backslashes $installURL = str_replace('\\', '', $installURL); header("Location: $installURL"); die(); } // Direct away - this is the "main" function, that hands control to the appropriate controller DataModel::set_inst(new DataModel()); Director::direct($url, DataModel::inst());