mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
206 lines
7.3 KiB
PHP
206 lines
7.3 KiB
PHP
<?php
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use SilverStripe\ORM\DB;
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use SilverStripe\ORM\DataModel;
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use SilverStripe\Security\Security;
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use SilverStripe\Security\Permission;
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use SilverStripe\Core\Startup\ParameterConfirmationToken;
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use SilverStripe\Core\Startup\ErrorControlChain;
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use SilverStripe\Control\Session;
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use SilverStripe\Control\Director;
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/************************************************************************************
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************************************************************************************
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** **
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** If you can read this text in your browser then you don't have PHP installed. **
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** Please install PHP 5.5.0 or higher . **
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** **
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************************************************************************************
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************************************************************************************/
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if (version_compare(phpversion(), '5.5.0', '<')) {
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header($_SERVER['SERVER_PROTOCOL'] . " 500 Server Error");
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echo str_replace('$PHPVersion', phpversion(), file_get_contents("Dev/Install/php5-required.html"));
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die();
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}
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/**
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* Main file that handles every page request.
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*
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* The main.php does a number of set-up activities for the request.
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*
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* - Includes the .env file in your webroot
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* - Gets an up-to-date manifest from {@link ManifestBuilder}
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* - Sets up error handlers with {@link Debug::loadErrorHandlers()}
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* - Calls {@link DB::connect()}, passing it the global variable $databaseConfig that should
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* be defined in an _config.php
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* - Sets up the default director rules using {@link Director::$rules}
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*
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* After that, it calls {@link Director::direct()}, which is responsible for doing most of the
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* real work.
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*
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* CONFIGURING THE WEBSERVER
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*
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* To use SilverStripe, every request that doesn't point directly to a file should be rewritten to
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* framework/main.php?url=(url). For example, http://www.example.com/about-us/rss would be rewritten
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* to http://www.example.com/framework/main.php?url=about-us/rss
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*
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* It's important that requests that point directly to a file aren't rewritten; otherwise, visitors
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* won't be able to download any CSS, JS, image files, or other downloads.
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*
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* On Apache, RewriteEngine can be used to do this.
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*
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* @see Director::direct()
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*/
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// require composers autoloader, unless it is already installed
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if(!class_exists('Composer\\Autoload\\ClassLoader', false)) {
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if (file_exists($autoloadPath = dirname(__DIR__) . '/vendor/autoload.php')) {
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require_once $autoloadPath;
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}
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else {
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if (!headers_sent()) {
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header($_SERVER['SERVER_PROTOCOL'] . " 500 Server Error");
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header('Content-Type: text/plain');
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}
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echo "Failed to include composer's autoloader, unable to continue\n";
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exit(1);
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}
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}
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// IIS will sometimes generate this.
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if(!empty($_SERVER['HTTP_X_ORIGINAL_URL'])) {
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$_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_ORIGINAL_URL'];
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}
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// Enable the entity loader to be able to load XML in Zend_Locale_Data
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libxml_disable_entity_loader(false);
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/**
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* Figure out the request URL
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*/
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global $url;
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// Helper to safely parse and load a querystring fragment
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$parseQuery = function($query) {
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parse_str($query, $_GET);
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if ($_GET) $_REQUEST = array_merge((array)$_REQUEST, (array)$_GET);
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};
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// Apache rewrite rules and IIS use this
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if (isset($_GET['url']) && php_sapi_name() !== 'cli-server') {
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// Prevent injection of url= querystring argument by prioritising any leading url argument
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if(isset($_SERVER['QUERY_STRING']) &&
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preg_match('/^(?<url>url=[^&?]*)(?<query>.*[&?]url=.*)$/', $_SERVER['QUERY_STRING'], $results)
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) {
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$queryString = $results['query'].'&'.$results['url'];
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$parseQuery($queryString);
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}
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$url = $_GET['url'];
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// IIS includes get variables in url
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$i = strpos($url, '?');
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if($i !== false) {
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$url = substr($url, 0, $i);
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}
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// Lighttpd and PHP 5.4's built-in webserver use this
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} else {
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// Get raw URL -- still needs to be decoded below (after parsing out query string).
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$url = $_SERVER['REQUEST_URI'];
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// Querystring args need to be explicitly parsed
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if(strpos($url,'?') !== false) {
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list($url, $query) = explode('?',$url,2);
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$parseQuery($query);
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}
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// Decode URL now that it has been separated from query string.
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$url = urldecode($url);
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// Pass back to the webserver for files that exist
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if(php_sapi_name() === 'cli-server' && file_exists(BASE_PATH . $url) && is_file(BASE_PATH . $url)) {
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return false;
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}
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}
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// Remove base folders from the URL if webroot is hosted in a subfolder
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if (substr(strtolower($url), 0, strlen(BASE_URL)) == strtolower(BASE_URL)) $url = substr($url, strlen(BASE_URL));
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/**
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* Include SilverStripe's core code
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*/
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require_once('Core/Startup/ErrorControlChain.php');
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require_once('Core/Startup/ParameterConfirmationToken.php');
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// Prepare tokens and execute chain
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$reloadToken = ParameterConfirmationToken::prepare_tokens(array('isTest', 'isDev', 'flush'));
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$chain = new ErrorControlChain();
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$chain
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->then(function($chain) use ($reloadToken) {
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// If no redirection is necessary then we can disable error supression
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if (!$reloadToken) $chain->setSuppression(false);
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// Load in core
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require_once('Core/Core.php');
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// Connect to database
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global $databaseConfig;
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if ($databaseConfig) DB::connect($databaseConfig);
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// Check if a token is requesting a redirect
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if (!$reloadToken) return;
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// Otherwise, we start up the session if needed
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if(!isset($_SESSION) && Session::request_contains_session_id()) {
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Session::start();
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}
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// Next, check if we're in dev mode, or the database doesn't have any security data, or we are admin
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if (Director::isDev() || !Security::database_is_ready() || Permission::check('ADMIN')) {
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return $reloadToken->reloadWithToken();
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}
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// Fail and redirect the user to the login page
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$loginPage = Director::absoluteURL(Security::config()->login_url);
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$loginPage .= "?BackURL=" . urlencode($_SERVER['REQUEST_URI']);
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header('location: '.$loginPage, true, 302);
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die;
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})
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// Finally if a token was requested but there was an error while figuring out if it's allowed, do it anyway
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->thenIfErrored(function() use ($reloadToken){
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if ($reloadToken) {
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$reloadToken->reloadWithToken();
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}
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})
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->execute();
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global $databaseConfig;
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// Redirect to the installer if no database is selected
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if(!isset($databaseConfig) || !isset($databaseConfig['database']) || !$databaseConfig['database']) {
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if(!file_exists(BASE_PATH . '/install.php')) {
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header($_SERVER['SERVER_PROTOCOL'] . " 500 Server Error");
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die('SilverStripe Framework requires a $databaseConfig defined.');
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}
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$host = isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : $_SERVER['SERVER_NAME'];
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$s = (isset($_SERVER['SSL']) || (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off')) ? 's' : '';
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$installURL = "http$s://" . $host . BASE_URL . '/install.php';
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// The above dirname() will equate to "\" on Windows when installing directly from http://localhost (not using
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// a sub-directory), this really messes things up in some browsers. Let's get rid of the backslashes
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$installURL = str_replace('\\', '', $installURL);
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header("Location: $installURL");
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die();
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}
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// Direct away - this is the "main" function, that hands control to the appropriate controller
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DataModel::set_inst(new DataModel());
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Director::direct($url, DataModel::inst());
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