301 lines
9.5 KiB
PHP
301 lines
9.5 KiB
PHP
<?php
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/**
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* This file is the Framework bootstrap. It will get your environment ready to call Director::direct().
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*
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* It takes care of:
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* - Including Constants.php to include _ss_environment and initialise necessary constants
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* - Checking of PHP memory limit
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* - Including all the files needed to get the manifest built
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* - Building and including the manifest
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*
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* @todo This file currently contains a lot of bits and pieces, and its various responsibilities should probably be
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* moved into different subsystems.
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* @todo A lot of this stuff is very order-dependent. This could be decoupled.
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*
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* @package framework
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* @subpackage core
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*/
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/**
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* All errors are reported, including E_STRICT by default *unless* the site is in
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* live mode, where reporting is limited to fatal errors and warnings (see later in this file)
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*/
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error_reporting(E_ALL | E_STRICT);
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/**
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* Include Constants (if it hasn't already been included) to pull in BASE_PATH, etc
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*/
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require_once dirname(__FILE__).'/Constants.php';
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global $_increase_time_limit_max;
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$_increase_time_limit_max = -1;
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/**
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* Priorities definition. These constants are used in calls to _t() as an optional argument
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*/
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define('PR_HIGH',100);
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define('PR_MEDIUM',50);
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define('PR_LOW',10);
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/**
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* Ensure we have enough memory
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*/
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increase_memory_limit_to('64M');
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/**
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* Ensure we don't run into xdebug's fairly conservative infinite recursion protection limit
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*/
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increase_xdebug_nesting_level_to(200);
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/**
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* Set default encoding
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*/
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mb_http_output('UTF-8');
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mb_internal_encoding('UTF-8');
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mb_regex_encoding('UTF-8');
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/**
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* Enable better garbage collection
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*/
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gc_enable();
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// Include the files needed the initial manifest building, as well as any files
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// that are needed for the boostrap process on every request.
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require_once 'cache/Cache.php';
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require_once 'core/CustomMethods.php';
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require_once 'core/Extensible.php';
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require_once 'core/Injectable.php';
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require_once 'core/Configurable.php';
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require_once 'core/Object.php';
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require_once 'core/ClassInfo.php';
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require_once 'core/DAG.php';
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require_once 'core/Config.php';
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require_once 'view/TemplateGlobalProvider.php';
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require_once 'control/Director.php';
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require_once 'dev/Debug.php';
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require_once 'dev/DebugView.php';
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require_once 'dev/CliDebugView.php';
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require_once 'dev/Backtrace.php';
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require_once 'filesystem/FileFinder.php';
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require_once 'core/manifest/ManifestCache.php';
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require_once 'core/manifest/ClassLoader.php';
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require_once 'core/manifest/ConfigManifest.php';
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require_once 'core/manifest/ConfigStaticManifest.php';
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require_once 'core/manifest/ClassManifest.php';
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require_once 'core/manifest/ManifestFileFinder.php';
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require_once 'core/manifest/TemplateLoader.php';
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require_once 'core/manifest/TemplateManifest.php';
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require_once 'core/manifest/TokenisedRegularExpression.php';
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require_once 'control/injector/Injector.php';
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// Initialise the dependency injector as soon as possible, as it is
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// subsequently used by some of the following code
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$injector = new Injector(array('locator' => 'SilverStripeServiceConfigurationLocator'));
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Injector::set_inst($injector);
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///////////////////////////////////////////////////////////////////////////////
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// MANIFEST
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// Regenerate the manifest if ?flush is set, or if the database is being built.
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// The coupling is a hack, but it removes an annoying bug where new classes
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// referenced in _config.php files can be referenced during the build process.
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$requestURL = isset($_REQUEST['url']) ? trim($_REQUEST['url'], '/') : false;
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$flush = (isset($_GET['flush']) || $requestURL === trim(BASE_URL . '/dev/build', '/'));
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global $manifest;
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$manifest = new SS_ClassManifest(BASE_PATH, false, $flush);
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// Register SilverStripe's class map autoload
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$loader = SS_ClassLoader::instance();
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$loader->registerAutoloader();
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$loader->pushManifest($manifest);
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// Fall back to Composer's autoloader (e.g. for PHPUnit), if composer is used
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if(file_exists(BASE_PATH . '/vendor/autoload.php')) {
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require_once BASE_PATH . '/vendor/autoload.php';
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}
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// Now that the class manifest is up, load the static configuration
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$configManifest = new SS_ConfigStaticManifest();
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Config::inst()->pushConfigStaticManifest($configManifest);
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// And then the yaml configuration
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$configManifest = new SS_ConfigManifest(BASE_PATH, false, $flush);
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Config::inst()->pushConfigYamlManifest($configManifest);
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// Load template manifest
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SS_TemplateLoader::instance()->pushManifest(new SS_TemplateManifest(
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BASE_PATH, project(), false, $flush
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));
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// If in live mode, ensure deprecation, strict and notices are not reported
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if(Director::isLive()) {
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error_reporting(E_ALL & ~(E_DEPRECATED | E_STRICT | E_NOTICE));
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}
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///////////////////////////////////////////////////////////////////////////////
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// POST-MANIFEST COMMANDS
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/**
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* Load error handlers
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*/
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$errorHandler = Injector::inst()->get('ErrorHandler');
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$errorHandler->start();
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///////////////////////////////////////////////////////////////////////////////
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// HELPER FUNCTIONS
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/**
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* Creates a class instance by the "singleton" design pattern.
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* It will always return the same instance for this class,
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* which can be used for performance reasons and as a simple
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* way to access instance methods which don't rely on instance
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* data (e.g. the custom SilverStripe static handling).
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*
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* @param string $className
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* @return Object
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*/
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function singleton($className) {
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if($className == "Config") user_error("Don't pass Config to singleton()", E_USER_ERROR);
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if(!isset($className)) user_error("singleton() Called without a class", E_USER_ERROR);
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if(!is_string($className)) user_error("singleton() passed bad class_name: " . var_export($className,true),
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E_USER_ERROR);
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return Injector::inst()->get($className);
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}
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function project() {
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global $project;
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return $project;
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}
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/**
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* @see i18n::_t()
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*/
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function _t($entity, $string = "", $context = "", $injection = "") {
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return i18n::_t($entity, $string, $context, $injection);
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}
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/**
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* Increase the memory limit to the given level if it's currently too low.
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* Only increases up to the maximum defined in {@link set_increase_memory_limit_max()},
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* and defaults to the 'memory_limit' setting in the PHP configuration.
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*
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* @param A memory limit string, such as "64M". If omitted, unlimited memory will be set.
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* @return Boolean TRUE indicates a successful change, FALSE a denied change.
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*/
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function increase_memory_limit_to($memoryLimit = -1) {
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$curLimit = ini_get('memory_limit');
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// Can't go higher than infinite
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if($curLimit == -1 ) return true;
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// Check hard maximums
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$max = get_increase_memory_limit_max();
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if($max && $max != -1 && trANSLATE_MEMSTRING($memoryLimit) > translate_memstring($max)) return false;
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// Increase the memory limit if it's too low
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if($memoryLimit == -1 || translate_memstring($memoryLimit) > translate_memstring($curLimit)) {
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ini_set('memory_limit', $memoryLimit);
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}
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return true;
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}
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$_increase_memory_limit_max = ini_get('memory_limit');
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/**
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* Set the maximum allowed value for {@link increase_memory_limit_to()}.
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* The same result can also be achieved through 'suhosin.memory_limit'
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* if PHP is running with the Suhosin system.
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*
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* @param Memory limit string
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*/
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function set_increase_memory_limit_max($memoryLimit) {
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global $_increase_memory_limit_max;
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$_increase_memory_limit_max = $memoryLimit;
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}
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/**
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* @return Memory limit string
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*/
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function get_increase_memory_limit_max() {
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global $_increase_memory_limit_max;
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return $_increase_memory_limit_max;
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}
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/**
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* Increases the XDebug parameter max_nesting_level, which limits how deep recursion can go.
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* Only does anything if (a) xdebug is installed and (b) the new limit is higher than the existing limit
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*
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* @param int $limit - The new limit to increase to
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*/
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function increase_xdebug_nesting_level_to($limit) {
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if (function_exists('xdebug_enable')) {
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$current = ini_get('xdebug.max_nesting_level');
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if ((int)$current < $limit) ini_set('xdebug.max_nesting_level', $limit);
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}
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}
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/**
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* Turn a memory string, such as 512M into an actual number of bytes.
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*
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* @param A memory limit string, such as "64M"
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*/
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function translate_memstring($memString) {
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switch(strtolower(substr($memString, -1))) {
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case "k": return round(substr($memString, 0, -1)*1024);
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case "m": return round(substr($memString, 0, -1)*1024*1024);
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case "g": return round(substr($memString, 0, -1)*1024*1024*1024);
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default: return round($memString);
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}
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}
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/**
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* Increase the time limit of this script. By default, the time will be unlimited.
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* Only works if 'safe_mode' is off in the PHP configuration.
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* Only values up to {@link get_increase_time_limit_max()} are allowed.
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*
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* @param $timeLimit The time limit in seconds. If omitted, no time limit will be set.
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* @return Boolean TRUE indicates a successful change, FALSE a denied change.
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*/
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function increase_time_limit_to($timeLimit = null) {
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$max = get_increase_time_limit_max();
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if($max != -1 && $max != null && $timeLimit > $max) return false;
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if(!ini_get('safe_mode')) {
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if(!$timeLimit) {
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set_time_limit(0);
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return true;
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} else {
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$currTimeLimit = ini_get('max_execution_time');
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// Only increase if its smaller
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if($currTimeLimit && $currTimeLimit < $timeLimit) {
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set_time_limit($timeLimit);
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}
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return true;
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}
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} else {
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return false;
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}
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}
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/**
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* Set the maximum allowed value for {@link increase_timeLimit_to()};
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*
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* @param Int Limit in seconds
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*/
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function set_increase_time_limit_max($timeLimit) {
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global $_increase_time_limit_max;
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$_increase_time_limit_max = $timeLimit;
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}
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/**
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* @return Int Limit in seconds
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*/
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function get_increase_time_limit_max() {
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global $_increase_time_limit_max;
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return $_increase_time_limit_max;
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}
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