280 lines
7.5 KiB
PHP
280 lines
7.5 KiB
PHP
<?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 4.3.2 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 - 2010, 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 Front Controller
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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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// CI Version
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define('CI_VERSION', '1.7.3');
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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.'codeigniter/Common'.EXT);
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/*
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* ------------------------------------------------------
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* Load the compatibility override functions
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* ------------------------------------------------------
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*/
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require(BASEPATH.'codeigniter/Compat'.EXT);
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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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require(APPPATH.'config/constants'.EXT);
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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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* Start the timer... tick tock tick tock...
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* ------------------------------------------------------
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*/
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$BM =& load_class('Benchmark');
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$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');
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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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$EXT->_call_hook('pre_system');
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/*
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* ------------------------------------------------------
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* Instantiate the base classes
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* ------------------------------------------------------
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*/
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$CFG =& load_class('Config');
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$URI =& load_class('URI');
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$RTR =& load_class('Router');
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$OUT =& load_class('Output');
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/*
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* ------------------------------------------------------
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* Is there a valid cache file? If so, we're done...
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* ------------------------------------------------------
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*/
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if ($EXT->_call_hook('cache_override') === FALSE)
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{
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if ($OUT->_display_cache($CFG, $URI) == TRUE)
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{
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exit;
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}
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}
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/*
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* ------------------------------------------------------
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* Load the remaining base classes
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* ------------------------------------------------------
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*/
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$IN =& load_class('Input');
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$LANG =& load_class('Language');
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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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* Note: Due to the poor object handling in PHP 4 we'll
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* conditionally load different versions of the base
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* class. Retaining PHP 4 compatibility requires a bit of a hack.
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*
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* Note: The Loader class needs to be included first
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*
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*/
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if ( ! is_php('5.0.0'))
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{
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load_class('Loader', FALSE);
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require(BASEPATH.'codeigniter/Base4'.EXT);
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}
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else
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{
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require(BASEPATH.'codeigniter/Base5'.EXT);
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}
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// Load the base controller class
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load_class('Controller', FALSE);
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// Load the local application controller
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// Note: The Router class automatically validates the controller path. If this include fails it
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// 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().$RTR->fetch_class().EXT))
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{
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show_error('Unable to load your default controller. Please make sure the controller specified in your Routes.php file is valid.');
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}
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include(APPPATH.'controllers/'.$RTR->fetch_directory().$RTR->fetch_class().EXT);
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// Set a mark point for benchmarking
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$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 $method == 'controller'
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OR strncmp($method, '_', 1) == 0
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OR in_array(strtolower($method), array_map('strtolower', get_class_methods('Controller')))
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)
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{
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show_404("{$class}/{$method}");
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}
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/*
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* ------------------------------------------------------
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* Is there a "pre_controller" hook?
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* ------------------------------------------------------
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*/
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$EXT->_call_hook('pre_controller');
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/*
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* ------------------------------------------------------
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* Instantiate the controller and call requested method
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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 $class();
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// Is this a scaffolding request?
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if ($RTR->scaffolding_request === TRUE)
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{
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if ($EXT->_call_hook('scaffolding_override') === FALSE)
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{
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$CI->_ci_scaffolding();
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}
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}
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else
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{
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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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$EXT->_call_hook('post_controller_constructor');
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// Is there a "remap" function?
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if (method_exists($CI, '_remap'))
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{
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$CI->_remap($method);
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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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show_404("{$class}/{$method}");
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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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}
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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/codeigniter/CodeIgniter.php */ |