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402 lines
11 KiB
402 lines
11 KiB
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); |
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/** |
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* CodeIgniter |
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* |
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* An open source application development framework for PHP 5.1.6 or newer |
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* |
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* @package CodeIgniter |
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* @author ExpressionEngine Dev Team |
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* @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. |
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* @license http://codeigniter.com/user_guide/license.html |
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* @link http://codeigniter.com |
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* @since Version 1.0 |
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* @filesource |
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*/ |
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// ------------------------------------------------------------------------ |
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/** |
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* System Initialization File |
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* |
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* Loads the base classes and executes the request. |
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* |
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* @package CodeIgniter |
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* @subpackage codeigniter |
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* @category Front-controller |
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* @author ExpressionEngine Dev Team |
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* @link http://codeigniter.com/user_guide/ |
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*/ |
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/** |
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* CodeIgniter Version |
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* |
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* @var string |
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* |
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*/ |
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define('CI_VERSION', '2.1.3'); |
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/** |
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* CodeIgniter Branch (Core = TRUE, Reactor = FALSE) |
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* |
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* @var boolean |
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* |
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*/ |
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define('CI_CORE', FALSE); |
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/* |
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* ------------------------------------------------------ |
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* Load the global functions |
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* ------------------------------------------------------ |
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*/ |
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require(BASEPATH.'core/Common.php'); |
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/* |
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* ------------------------------------------------------ |
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* Load the framework constants |
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* ------------------------------------------------------ |
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*/ |
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if (defined('ENVIRONMENT') AND file_exists(APPPATH.'config/'.ENVIRONMENT.'/constants.php')) |
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{ |
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require(APPPATH.'config/'.ENVIRONMENT.'/constants.php'); |
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} |
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else |
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{ |
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require(APPPATH.'config/constants.php'); |
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} |
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/* |
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* ------------------------------------------------------ |
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* Define a custom error handler so we can log PHP errors |
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* ------------------------------------------------------ |
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*/ |
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set_error_handler('_exception_handler'); |
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if ( ! is_php('5.3')) |
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{ |
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@set_magic_quotes_runtime(0); // Kill magic quotes |
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} |
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/* |
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* ------------------------------------------------------ |
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* Set the subclass_prefix |
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* ------------------------------------------------------ |
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* |
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* Normally the "subclass_prefix" is set in the config file. |
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* The subclass prefix allows CI to know if a core class is |
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* being extended via a library in the local application |
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* "libraries" folder. Since CI allows config items to be |
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* overriden via data set in the main index. php file, |
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* before proceeding we need to know if a subclass_prefix |
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* override exists. If so, we will set this value now, |
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* before any classes are loaded |
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* Note: Since the config file data is cached it doesn't |
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* hurt to load it here. |
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*/ |
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if (isset($assign_to_config['subclass_prefix']) AND $assign_to_config['subclass_prefix'] != '') |
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{ |
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get_config(array('subclass_prefix' => $assign_to_config['subclass_prefix'])); |
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} |
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/* |
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* ------------------------------------------------------ |
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* Set a liberal script execution time limit |
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* ------------------------------------------------------ |
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*/ |
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if (function_exists("set_time_limit") == TRUE AND @ini_get("safe_mode") == 0) |
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{ |
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@set_time_limit(300); |
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} |
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/* |
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* ------------------------------------------------------ |
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* Start the timer... tick tock tick tock... |
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* ------------------------------------------------------ |
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*/ |
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$BM =& load_class('Benchmark', 'core'); |
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$BM->mark('total_execution_time_start'); |
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$BM->mark('loading_time:_base_classes_start'); |
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/* |
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* ------------------------------------------------------ |
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* Instantiate the hooks class |
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* ------------------------------------------------------ |
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*/ |
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$EXT =& load_class('Hooks', 'core'); |
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/* |
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* ------------------------------------------------------ |
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* Is there a "pre_system" hook? |
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* ------------------------------------------------------ |
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*/ |
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$EXT->_call_hook('pre_system'); |
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/* |
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* ------------------------------------------------------ |
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* Instantiate the config class |
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* ------------------------------------------------------ |
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*/ |
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$CFG =& load_class('Config', 'core'); |
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// Do we have any manually set config items in the index.php file? |
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if (isset($assign_to_config)) |
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{ |
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$CFG->_assign_to_config($assign_to_config); |
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} |
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/* |
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* ------------------------------------------------------ |
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* Instantiate the UTF-8 class |
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* ------------------------------------------------------ |
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* |
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* Note: Order here is rather important as the UTF-8 |
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* class needs to be used very early on, but it cannot |
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* properly determine if UTf-8 can be supported until |
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* after the Config class is instantiated. |
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* |
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*/ |
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$UNI =& load_class('Utf8', 'core'); |
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/* |
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* ------------------------------------------------------ |
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* Instantiate the URI class |
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* ------------------------------------------------------ |
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*/ |
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$URI =& load_class('URI', 'core'); |
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/* |
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* ------------------------------------------------------ |
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* Instantiate the routing class and set the routing |
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* ------------------------------------------------------ |
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*/ |
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$RTR =& load_class('Router', 'core'); |
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$RTR->_set_routing(); |
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// Set any routing overrides that may exist in the main index file |
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if (isset($routing)) |
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{ |
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$RTR->_set_overrides($routing); |
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} |
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/* |
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* ------------------------------------------------------ |
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* Instantiate the output class |
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* ------------------------------------------------------ |
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*/ |
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$OUT =& load_class('Output', 'core'); |
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/* |
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* ------------------------------------------------------ |
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* Is there a valid cache file? If so, we're done... |
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* ------------------------------------------------------ |
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*/ |
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if ($EXT->_call_hook('cache_override') === FALSE) |
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{ |
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if ($OUT->_display_cache($CFG, $URI) == TRUE) |
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{ |
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exit; |
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} |
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} |
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/* |
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* ----------------------------------------------------- |
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* Load the security class for xss and csrf support |
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* ----------------------------------------------------- |
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*/ |
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$SEC =& load_class('Security', 'core'); |
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/* |
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* ------------------------------------------------------ |
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* Load the Input class and sanitize globals |
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* ------------------------------------------------------ |
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*/ |
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$IN =& load_class('Input', 'core'); |
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/* |
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* ------------------------------------------------------ |
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* Load the Language class |
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* ------------------------------------------------------ |
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*/ |
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$LANG =& load_class('Lang', 'core'); |
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/* |
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* ------------------------------------------------------ |
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* Load the app controller and local controller |
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* ------------------------------------------------------ |
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* |
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*/ |
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// Load the base controller class |
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require BASEPATH.'core/Controller.php'; |
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function &get_instance() |
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{ |
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return CI_Controller::get_instance(); |
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} |
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if (file_exists(APPPATH.'core/'.$CFG->config['subclass_prefix'].'Controller.php')) |
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{ |
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require APPPATH.'core/'.$CFG->config['subclass_prefix'].'Controller.php'; |
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} |
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// Load the local application controller |
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// Note: The Router class automatically validates the controller path using the router->_validate_request(). |
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// If this include fails it means that the default controller in the Routes.php file is not resolving to something valid. |
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if ( ! file_exists(APPPATH.'controllers/'.$RTR->fetch_directory().$RTR->fetch_class().'.php')) |
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{ |
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show_error('Unable to load your default controller. Please make sure the controller specified in your Routes.php file is valid.'); |
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} |
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include(APPPATH.'controllers/'.$RTR->fetch_directory().$RTR->fetch_class().'.php'); |
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// Set a mark point for benchmarking |
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$BM->mark('loading_time:_base_classes_end'); |
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/* |
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* ------------------------------------------------------ |
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* Security check |
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* ------------------------------------------------------ |
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* |
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* None of the functions in the app controller or the |
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* loader class can be called via the URI, nor can |
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* controller functions that begin with an underscore |
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*/ |
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$class = $RTR->fetch_class(); |
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$method = $RTR->fetch_method(); |
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if ( ! class_exists($class) |
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OR strncmp($method, '_', 1) == 0 |
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OR in_array(strtolower($method), array_map('strtolower', get_class_methods('CI_Controller'))) |
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) |
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{ |
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if ( ! empty($RTR->routes['404_override'])) |
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{ |
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$x = explode('/', $RTR->routes['404_override']); |
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$class = $x[0]; |
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$method = (isset($x[1]) ? $x[1] : 'index'); |
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if ( ! class_exists($class)) |
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{ |
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if ( ! file_exists(APPPATH.'controllers/'.$class.'.php')) |
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{ |
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show_404("{$class}/{$method}"); |
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} |
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include_once(APPPATH.'controllers/'.$class.'.php'); |
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} |
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} |
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else |
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{ |
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show_404("{$class}/{$method}"); |
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} |
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} |
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/* |
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* ------------------------------------------------------ |
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* Is there a "pre_controller" hook? |
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* ------------------------------------------------------ |
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*/ |
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$EXT->_call_hook('pre_controller'); |
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/* |
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* ------------------------------------------------------ |
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* Instantiate the requested controller |
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* ------------------------------------------------------ |
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*/ |
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// Mark a start point so we can benchmark the controller |
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$BM->mark('controller_execution_time_( '.$class.' / '.$method.' )_start'); |
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$CI = new $class(); |
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/* |
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* ------------------------------------------------------ |
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* Is there a "post_controller_constructor" hook? |
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* ------------------------------------------------------ |
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*/ |
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$EXT->_call_hook('post_controller_constructor'); |
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/* |
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* ------------------------------------------------------ |
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* Call the requested method |
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* ------------------------------------------------------ |
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*/ |
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// Is there a "remap" function? If so, we call it instead |
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if (method_exists($CI, '_remap')) |
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{ |
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$CI->_remap($method, array_slice($URI->rsegments, 2)); |
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} |
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else |
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{ |
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// is_callable() returns TRUE on some versions of PHP 5 for private and protected |
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// methods, so we'll use this workaround for consistent behavior |
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if ( ! in_array(strtolower($method), array_map('strtolower', get_class_methods($CI)))) |
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{ |
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// Check and see if we are using a 404 override and use it. |
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if ( ! empty($RTR->routes['404_override'])) |
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{ |
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$x = explode('/', $RTR->routes['404_override']); |
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$class = $x[0]; |
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$method = (isset($x[1]) ? $x[1] : 'index'); |
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if ( ! class_exists($class)) |
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{ |
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if ( ! file_exists(APPPATH.'controllers/'.$class.'.php')) |
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{ |
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show_404("{$class}/{$method}"); |
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} |
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include_once(APPPATH.'controllers/'.$class.'.php'); |
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unset($CI); |
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$CI = new $class(); |
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} |
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} |
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else |
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{ |
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show_404("{$class}/{$method}"); |
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} |
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} |
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// Call the requested method. |
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// Any URI segments present (besides the class/function) will be passed to the method for convenience |
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call_user_func_array(array(&$CI, $method), array_slice($URI->rsegments, 2)); |
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} |
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// Mark a benchmark end point |
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$BM->mark('controller_execution_time_( '.$class.' / '.$method.' )_end'); |
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/* |
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* ------------------------------------------------------ |
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* Is there a "post_controller" hook? |
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* ------------------------------------------------------ |
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*/ |
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$EXT->_call_hook('post_controller'); |
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/* |
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* ------------------------------------------------------ |
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* Send the final rendered output to the browser |
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* ------------------------------------------------------ |
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*/ |
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if ($EXT->_call_hook('display_override') === FALSE) |
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{ |
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$OUT->_display(); |
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} |
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/* |
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* ------------------------------------------------------ |
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* Is there a "post_system" hook? |
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* ------------------------------------------------------ |
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*/ |
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$EXT->_call_hook('post_system'); |
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/* |
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* ------------------------------------------------------ |
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* Close the DB connection if one exists |
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* ------------------------------------------------------ |
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*/ |
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if (class_exists('CI_DB') AND isset($CI->db)) |
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{ |
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$CI->db->close(); |
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} |
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/* End of file CodeIgniter.php */ |
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/* Location: ./system/core/CodeIgniter.php */ |