ci_bootstrap.php

<?php

// Load the base controller class
require BASEPATH . 'core/Controller.php';

function &get_instance() {
    return CI_Controller::get_instance();
}

function ci_bootstrap($kernel, $override_controller_class = false, $load_fake_controller = false) {
    global $assign_to_config;
    global $BM;
    global $CFG;
    global $UNI;
    global $URI;
    global $RTR;
    global $OUT;
    global $SEC;
    global $IN;
    global $LANG;
    
    $GLOBALS['CI_symfony'] = $kernel->getContainer();
    
    /**
     * CodeIgniter
     *
     * An open source application development framework for PHP 5.1.6 or newer
     *
     * @package		CodeIgniter
     * @author		ExpressionEngine Dev Team
     * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
     * @license		http://codeigniter.com/user_guide/license.html
     * @link		http://codeigniter.com
     * @since		Version 1.0
     * @filesource
     */
    // ------------------------------------------------------------------------

    /**
     * System Initialization File
     *
     * Loads the base classes and executes the request.
     *
     * @package		CodeIgniter
     * @subpackage	codeigniter
     * @category	Front-controller
     * @author		ExpressionEngine Dev Team
     * @link		http://codeigniter.com/user_guide/
     */
    /**
     * CodeIgniter Version
     *
     * @var string
     *
     */
    define('CI_VERSION', '2.1.0');

    /**
     * CodeIgniter Branch (Core = TRUE, Reactor = FALSE)
     *
     * @var boolean
     *
     */
    define('CI_CORE', FALSE);

    /*
     * ------------------------------------------------------
     *  Load the global functions
     * ------------------------------------------------------
     */
    require(BASEPATH . 'core/Common.php');

    /*
     * ------------------------------------------------------
     *  Load the framework constants
     * ------------------------------------------------------
     */
    if (defined('ENVIRONMENT') AND file_exists(APPPATH . 'config/' . ENVIRONMENT . '/constants.php')) {
        require(APPPATH . 'config/' . ENVIRONMENT . '/constants.php');
    } else {
        require(APPPATH . 'config/constants.php');
    }

    /*
     * ------------------------------------------------------
     *  Define a custom error handler so we can log PHP errors
     * ------------------------------------------------------
     */
    set_error_handler('_exception_handler');

    if (!is_php('5.3')) {
        @set_magic_quotes_runtime(0); // Kill magic quotes
    }

    /*
     * ------------------------------------------------------
     *  Set the subclass_prefix
     * ------------------------------------------------------
     *
     * Normally the "subclass_prefix" is set in the config file.
     * The subclass prefix allows CI to know if a core class is
     * being extended via a library in the local application
     * "libraries" folder. Since CI allows config items to be
     * overriden via data set in the main index. php file,
     * before proceeding we need to know if a subclass_prefix
     * override exists.  If so, we will set this value now,
     * before any classes are loaded
     * Note: Since the config file data is cached it doesn't
     * hurt to load it here.
     */
    if (isset($assign_to_config['subclass_prefix']) AND $assign_to_config['subclass_prefix'] != '') {
        get_config(array('subclass_prefix' => $assign_to_config['subclass_prefix']));
    }

    /*
     * ------------------------------------------------------
     *  Start the timer... tick tock tick tock...
     * ------------------------------------------------------
     */
    $BM = load_class('Benchmark', 'core');
    $BM->mark('total_execution_time_start');
    $BM->mark('loading_time:_base_classes_start');

    /*
     * ------------------------------------------------------
     *  Instantiate the hooks class
     * ------------------------------------------------------
     */
    $EXT = load_class('Hooks', 'core');

    /*
     * ------------------------------------------------------
     *  Is there a "pre_system" hook?
     * ------------------------------------------------------
     */
    $EXT->_call_hook('pre_system');

    /*
     * ------------------------------------------------------
     *  Instantiate the config class
     * ------------------------------------------------------
     */
    $CFG = load_class('Config', 'core');
    
    // Do we have any manually set config items in the index.php file?
    if (isset($assign_to_config)) {
        $CFG->_assign_to_config($assign_to_config);
    }

    /*
     * ------------------------------------------------------
     *  Instantiate the UTF-8 class
     * ------------------------------------------------------
     *
     * Note: Order here is rather important as the UTF-8
     * class needs to be used very early on, but it cannot
     * properly determine if UTf-8 can be supported until
     * after the Config class is instantiated.
     *
     */

    $UNI = load_class('Utf8', 'core');

    /*
     * ------------------------------------------------------
     *  Instantiate the URI class
     * ------------------------------------------------------
     */
    $URI = load_class('URI', 'core');

    /*
     * ------------------------------------------------------
     *  Instantiate the routing class and set the routing
     * ------------------------------------------------------
     */
    $RTR = load_class('Router', 'core');
    
    /** MODIFICATION FOR SYMFONY (add) */
    if (!$load_fake_controller) {
    /** END */
     
        $RTR->_set_routing();
        // Set any routing overrides that may exist in the main index file
        if (isset($routing)) {
            $RTR->_set_overrides($routing);
        }

    /** MODIFICATION FOR SYMFONY (add) */
    }
    /** END */
    
    /*
     * ------------------------------------------------------
     *  Instantiate the output class
     * ------------------------------------------------------
     */
    $OUT = load_class('Output', 'core');

    /*
     * ------------------------------------------------------
     * 	Is there a valid cache file?  If so, we're done...
     * ------------------------------------------------------
     */
    if ($EXT->_call_hook('cache_override') === FALSE) {
        if ($OUT->_display_cache($CFG, $URI) == TRUE) {
            exit;
        }
    }

    /*
     * -----------------------------------------------------
     * Load the security class for xss and csrf support
     * -----------------------------------------------------
     */
    $SEC = load_class('Security', 'core');

    /*
     * ------------------------------------------------------
     *  Load the Input class and sanitize globals
     * ------------------------------------------------------
     */
    $IN = load_class('Input', 'core');

    /*
     * ------------------------------------------------------
     *  Load the Language class
     * ------------------------------------------------------
     */
    $LANG = load_class('Lang', 'core');

    /*
     * ------------------------------------------------------
     *  Load the app controller and local controller
     * ------------------------------------------------------
     *
     */
    /** REMOVED FOR SYMFONY **/

    /** MODIFICATION FOR SYMFONY (add) */
    $base_controller_class = 'CI_Controller';
    /** END */
    
    if (file_exists(APPPATH . 'core/' . $CFG->config['subclass_prefix'] . 'Controller.php')) {
        require APPPATH . 'core/' . $CFG->config['subclass_prefix'] . 'Controller.php';
        /** MODIFICATION FOR SYMFONY (add) */
        if ($override_controller_class === false)
            $base_controller_class = $CFG->config['subclass_prefix'] . 'Controller';
        else
            $base_controller_class = $override_controller_class;
        /** END */
    }

    /** MODIFICATION FOR SYMFONY (add) */
    if (!$load_fake_controller) {
    /** END */
        
        // Load the local application controller
        // Note: The Router class automatically validates the controller path using the router->_validate_request().
        // If this include fails it means that the default controller in the Routes.php file is not resolving to something valid.
        if (!file_exists(APPPATH . 'controllers/' . $RTR->fetch_directory() . $RTR->fetch_class() . '.php')) {
            show_error('Unable to load your default controller. Please make sure the controller specified in your Routes.php file is valid.');
        }

        include(APPPATH . 'controllers/' . $RTR->fetch_directory() . $RTR->fetch_class() . '.php');

    /** MODIFICATION FOR SYMFONY (add) */
    }
    /** END */
    
    // Set a mark point for benchmarking
    $BM->mark('loading_time:_base_classes_end');

    /** MODIFICATION FOR SYMFONY (add) */
    if (!$load_fake_controller) {
    /** END */

        /*
        * ------------------------------------------------------
        *  Security check
        * ------------------------------------------------------
        *
        *  None of the functions in the app controller or the
        *  loader class can be called via the URI, nor can
        *  controller functions that begin with an underscore
        */
        $class = $RTR->fetch_class();
        $method = $RTR->fetch_method();

        if (!class_exists($class)
                OR strncmp($method, '_', 1) == 0
                OR in_array(strtolower($method), array_map('strtolower', get_class_methods('CI_Controller')))
        ) {
            if (!empty($RTR->routes['404_override'])) {
                $x = explode('/', $RTR->routes['404_override']);
                $class = $x[0];
                $method = (isset($x[1]) ? $x[1] : 'index');
                if (!class_exists($class)) {
                    if (!file_exists(APPPATH . 'controllers/' . $class . '.php')) {
                        show_404("{$class}/{$method}");
                    }

                    include_once(APPPATH . 'controllers/' . $class . '.php');
                }
            } else {
                show_404("{$class}/{$method}");
            }
        }

    /** MODIFICATION FOR SYMFONY (add) */
    }
    /** END */
    
    /*
     * ------------------------------------------------------
     *  Is there a "pre_controller" hook?
     * ------------------------------------------------------
     */
    $EXT->_call_hook('pre_controller');

    /*
    * ------------------------------------------------------
    *  Instantiate the requested controller
    * ------------------------------------------------------
    */
    
    /** MODIFICATION FOR SYMFONY (add) */
    if ($load_fake_controller) {
        $class = $base_controller_class;
        
        // Mark a start point so we can benchmark the controller
        $BM->mark('controller_execution_time_( ' . $class . ' )_start');
        
    } else {
    /** END */
    
        // Mark a start point so we can benchmark the controller
        $BM->mark('controller_execution_time_( ' . $class . ' / ' . $method . ' )_start');

    /** MODIFICATION FOR SYMFONY (add) */
    }
    /** END */

    /** MODIFICATION FOR SYMFONY (replace) */
    $CI = new $class($GLOBALS['CI_symfony']);
    /** END */
    
    /** MODIFICATION FOR SYMFONY (add) ****/
    $CI->symfony = $GLOBALS['CI_symfony'];
    /** END */
    
    /*
     * ------------------------------------------------------
     *  Is there a "post_controller_constructor" hook?
     * ------------------------------------------------------
     */
    $EXT->_call_hook('post_controller_constructor');
    
    /** MODIFICATION FOR SYMFONY (add) */
    if (!$load_fake_controller) {
    /** END */
        
        /*
        * ------------------------------------------------------
        *  Call the requested method
        * ------------------------------------------------------
        */
        // Is there a "remap" function? If so, we call it instead
        if (method_exists($CI, '_remap')) {
            $CI->_remap($method, array_slice($URI->rsegments, 2));
        } else {
            // is_callable() returns TRUE on some versions of PHP 5 for private and protected
            // methods, so we'll use this workaround for consistent behavior
            if (!in_array(strtolower($method), array_map('strtolower', get_class_methods($CI)))) {
                // Check and see if we are using a 404 override and use it.
                if (!empty($RTR->routes['404_override'])) {
                    $x = explode('/', $RTR->routes['404_override']);
                    $class = $x[0];
                    $method = (isset($x[1]) ? $x[1] : 'index');
                    if (!class_exists($class)) {
                        if (!file_exists(APPPATH . 'controllers/' . $class . '.php')) {
                            show_404("{$class}/{$method}");
                        }

                        include_once(APPPATH . 'controllers/' . $class . '.php');
                        unset($CI);
                        $CI = new $class();
                    }
                } else {
                    show_404("{$class}/{$method}");
                }
            }

            // Call the requested method.
            // Any URI segments present (besides the class/function) will be passed to the method for convenience
            call_user_func_array(array(&$CI, $method), array_slice($URI->rsegments, 2));
        }
    
    /** MODIFICATION FOR SYMFONY (add) */
    }
    /** END */

    /** MODIFICATION FOR SYMFONY (add) */
    if ($load_fake_controller) {
        
        // Mark a benchmark end point
        $BM->mark('controller_execution_time_( ' . $class . ' )_end');
        
    } else {
    /** END */

        // Mark a benchmark end point
        $BM->mark('controller_execution_time_( ' . $class . ' / ' . $method . ' )_end');

    /** MODIFICATION FOR SYMFONY (add) */
    }
    /** END */
    
    /*
     * ------------------------------------------------------
     *  Is there a "post_controller" hook?
     * ------------------------------------------------------
     */
    $EXT->_call_hook('post_controller');

    /*
     * ------------------------------------------------------
     *  Send the final rendered output to the browser
     * ------------------------------------------------------
     */
    if ($EXT->_call_hook('display_override') === FALSE) {
        $OUT->_display();
    }

    /*
     * ------------------------------------------------------
     *  Is there a "post_system" hook?
     * ------------------------------------------------------
     */
    $EXT->_call_hook('post_system');

    /*
     * ------------------------------------------------------
     *  Close the DB connection if one exists
     * ------------------------------------------------------
     */
    if (class_exists('CI_DB') AND isset($CI->db)) {
        $CI->db->close();
    }
}