<?php /** * CodeIgniter * * An open source application development framework for PHP 5.2.4 or newer * * NOTICE OF LICENSE * * Licensed under the Open Software License version 3.0 * * This source file is subject to the Open Software License (OSL 3.0) that is * bundled with this package in the files license.txt / license.rst. It is * also available through the world wide web at this URL: * http://opensource.org/licenses/OSL-3.0 * If you did not receive a copy of the license and are unable to obtain it * through the world wide web, please send an email to * licensing@ellislab.com so we can send you a copy immediately. * * @package CodeIgniter * @author EllisLab Dev Team * @copyright Copyright (c) 2008 - 2013, EllisLab, Inc. (http://ellislab.com/) * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) * @link http://codeigniter.com * @since Version 1.0 * @filesource */ defined('BASEPATH') OR exit('No direct script access allowed'); /** * System Initialization File * * Loads the base classes and executes the request. * * @package CodeIgniter * @subpackage CodeIgniter * @category Front-controller * @author EllisLab Dev Team * @link http://codeigniter.com/user_guide/ */ /** * CodeIgniter Version * * @var string * */ define('CI_VERSION', '3.0-dev'); /* * ------------------------------------------------------ * Load the global functions * ------------------------------------------------------ */ require_once(BASEPATH.'core/Common.php'); /* * ------------------------------------------------------ * Load the framework constants * ------------------------------------------------------ */ if (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('5.4')) { @ini_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 ( ! empty($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) && is_array($assign_to_config)) { foreach ($assign_to_config as $key => $value) { $CFG->set_item($key, $value); } } /* * ------------------------------------------------------ * 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'); $RTR->_set_routing(); // Set any routing overrides that may exist in the main index file if (isset($routing)) { $RTR->_set_overrides($routing); } /* * ------------------------------------------------------ * 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 && $OUT->_display_cache($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 * ------------------------------------------------------ */ $LANG =& load_class('Lang', 'core'); /* * ------------------------------------------------------ * Load the app controller and local controller * ------------------------------------------------------ * */ // Load the base controller class require BASEPATH.'core/Controller.php'; /** * Reference to the CI_Controller method. * * Returns current CI instance object * * @return object */ function &get_instance() { return CI_Controller::get_instance(); } if (file_exists(APPPATH.'core/'.$CFG->config['subclass_prefix'].'Controller.php')) { require APPPATH.'core/'.$CFG->config['subclass_prefix'].'Controller.php'; } // Load the local application controller // Note: The Router class automatically validates the controller path using the router->_validate_request(). // If this include fails it means that the default controller in the Routes.php file is not resolving to something valid. if ( ! file_exists(APPPATH.'controllers/'.$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'); // Set a mark point for benchmarking $BM->mark('loading_time:_base_classes_end'); /* * ------------------------------------------------------ * Security check * ------------------------------------------------------ * * None of the methods 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 $method[0] === '_' OR method_exists('CI_Controller', $method)) { if ( ! empty($RTR->routes['404_override'])) { if (sscanf($RTR->routes['404_override'], '%[^/]/%s', $class, $method) !== 2) { $method = 'index'; } if ( ! class_exists($class)) { if ( ! file_exists(APPPATH.'controllers/'.$class.'.php')) { show_404($class.'/'.$method); } include_once(APPPATH.'controllers/'.$class.'.php'); } } else { show_404($class.'/'.$method); } } if (method_exists($class, '_remap')) { $params = array($method, array_slice($URI->rsegments, 2)); $method = '_remap'; } else { // WARNING: It appears that there are issues with is_callable() even in PHP 5.2! // Furthermore, there are bug reports and feature/change requests related to it // that make it unreliable to use in this context. Please, DO NOT change this // work-around until a better alternative is available. if ( ! in_array(strtolower($method), array_map('strtolower', get_class_methods($class)), TRUE)) { if (empty($RTR->routes['404_override'])) { show_404($class.'/'.$method); } elseif (sscanf($RTR->routes['404_override'], '%[^/]/%s', $class, $method) !== 2) { $method = 'index'; } if ( ! class_exists($class)) { if ( ! file_exists(APPPATH.'controllers/'.$class.'.php')) { show_404($class.'/'.$method); } include_once(APPPATH.'controllers/'.$class.'.php'); } } $params = array_slice($URI->rsegments, 2); } /* * ------------------------------------------------------ * Is there a "pre_controller" hook? * ------------------------------------------------------ */ $EXT->call_hook('pre_controller'); /* * ------------------------------------------------------ * Instantiate the requested controller * ------------------------------------------------------ */ // Mark a start point so we can benchmark the controller $BM->mark('controller_execution_time_( '.$class.' / '.$method.' )_start'); $CI = new $class(); /* * ------------------------------------------------------ * Is there a "post_controller_constructor" hook? * ------------------------------------------------------ */ $EXT->call_hook('post_controller_constructor'); /* * ------------------------------------------------------ * Call the requested method * ------------------------------------------------------ */ call_user_func_array(array(&$CI, $method), $params); // Mark a benchmark end point $BM->mark('controller_execution_time_( '.$class.' / '.$method.' )_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'); /* End of file CodeIgniter.php */ /* Location: ./system/core/CodeIgniter.php */