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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
* An open source application development framework for PHP 4.3.2 or newer
*
* @package CodeIgniter
* @author ExpressionEngine Dev Team
* @copyright Copyright (c) 2008 - 2009, EllisLab, Inc.
* @license http://codeigniter.com/user_guide/license.html
* @link http://codeigniter.com
* @since Version 1.0
* @filesource
*/
// ------------------------------------------------------------------------
/**
* System Front Controller
*
* 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/
*/
// CI Version
define('CI_VERSION', '1.7.2');
/*
* ------------------------------------------------------
* Load the global functions
* ------------------------------------------------------
*/
require(BASEPATH.'codeigniter/Common'.EXT);
/*
* ------------------------------------------------------
* Load the compatibility override functions
* ------------------------------------------------------
*/
require(BASEPATH.'codeigniter/Compat'.EXT);
/*
* ------------------------------------------------------
* Load the framework constants
* ------------------------------------------------------
*/
require(APPPATH.'config/constants'.EXT);
/*
* ------------------------------------------------------
* 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
}
/*
* ------------------------------------------------------
* Start the timer... tick tock tick tock...
* ------------------------------------------------------
*/
$BM =& load_class('Benchmark');
$BM->mark('total_execution_time_start');
$BM->mark('loading_time_base_classes_start');
/*
* ------------------------------------------------------
* Instantiate the hooks class
* ------------------------------------------------------
*/
$EXT =& load_class('Hooks');
/*
* ------------------------------------------------------
* Is there a "pre_system" hook?
* ------------------------------------------------------
*/
$EXT->_call_hook('pre_system');
/*
* ------------------------------------------------------
* Instantiate the base classes
* ------------------------------------------------------
*/
$CFG =& load_class('Config');
$URI =& load_class('URI');
$RTR =& load_class('Router');
$OUT =& load_class('Output');
/*
* ------------------------------------------------------
* Is there a valid cache file? If so, we're done...
* ------------------------------------------------------
*/
if ($EXT->_call_hook('cache_override') === FALSE)
{
if ($OUT->_display_cache($CFG, $URI) == TRUE)
{
exit;
}
}
/*
* ------------------------------------------------------
* Load the remaining base classes
* ------------------------------------------------------
*/
$IN =& load_class('Input');
$LANG =& load_class('Language');
/*
* ------------------------------------------------------
* Load the app controller and local controller
* ------------------------------------------------------
*
* Note: Due to the poor object handling in PHP 4 we'll
* conditionally load different versions of the base
* class. Retaining PHP 4 compatibility requires a bit of a hack.
*
* Note: The Loader class needs to be included first
*
*/
if ( ! is_php('5.0.0'))
{
load_class('Loader', FALSE);
require(BASEPATH.'codeigniter/Base4'.EXT);
}
else
{
require(BASEPATH.'codeigniter/Base5'.EXT);
}
// Load the base controller class
load_class('Controller', FALSE);
// Load the local application controller
// Note: The Router class automatically validates the controller path. If this include fails it
// means that the default controller in the Routes.php file is not resolving to something valid.
if ( ! file_exists(APPPATH.'controllers/'.$RTR->fetch_directory().$RTR->fetch_class().EXT))
{
show_error('Unable to load your default controller. Please make sure the controller specified in your Routes.php file is valid.');
}
include(APPPATH.'controllers/'.$RTR->fetch_directory().$RTR->fetch_class().EXT);
// Set a mark point for benchmarking
$BM->mark('loading_time_base_classes_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 $method == 'controller'
OR strncmp($method, '_', 1) == 0
OR in_array(strtolower($method), array_map('strtolower', get_class_methods('Controller')))
)
{
show_404("{$class}/{$method}");
}
/*
* ------------------------------------------------------
* Is there a "pre_controller" hook?
* ------------------------------------------------------
*/
$EXT->_call_hook('pre_controller');
/*
* ------------------------------------------------------
* Instantiate the controller and call requested method
* ------------------------------------------------------
*/
// Mark a start point so we can benchmark the controller
$BM->mark('controller_execution_time_( '.$class.' / '.$method.' )_start');
$CI = new $class();
// Is this a scaffolding request?
if ($RTR->scaffolding_request === TRUE)
{
if ($EXT->_call_hook('scaffolding_override') === FALSE)
{
$CI->_ci_scaffolding();
}
}
else
{
/*
* ------------------------------------------------------
* Is there a "post_controller_constructor" hook?
* ------------------------------------------------------
*/
$EXT->_call_hook('post_controller_constructor');
// Is there a "remap" function?
if (method_exists($CI, '_remap'))
{
$CI->_remap($method);
}
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))))
{
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));
}
}
// 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?
* ------------------------------------------------------
*/
$EXT->_call_hook('post_system');
/*
* ------------------------------------------------------
* Close the DB connection if one exists
* ------------------------------------------------------
*/
if (class_exists('CI_DB') AND isset($CI->db))
{
$CI->db->close();
}
/* End of file CodeIgniter.php */
/* Location: ./system/codeigniter/CodeIgniter.php */