if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.1.6 or newer
 *
 * @package		CodeIgniter
 * @author		EllisLab Dev Team
 * @copyright		Copyright (c) 2008 - 2014, EllisLab, Inc.
 * @copyright		Copyright (c) 2014 - 2015, British Columbia Institute of Technology (http://bcit.ca/)
 * @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		EllisLab Dev Team
 * @link		http://codeigniter.com/user_guide/
 */

/**
 * CodeIgniter Version
 *
 * @var string
 *
 */
	define('CI_VERSION', '3.0');

/**
 * 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
 * ------------------------------------------------------
 */
    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']));
	}

/*
 * ------------------------------------------------------
 *  Set a liberal script execution time limit
 * ------------------------------------------------------
 */
	if (function_exists("set_time_limit") == TRUE AND @ini_get("safe_mode") == 0)
	{
		@set_time_limit(300);
	}

/*
 * ------------------------------------------------------
 *  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');
	$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 ($EXT->_call_hook('cache_override') === FALSE)
	{
		if ($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
 * ------------------------------------------------------
 *
 */
	// Load the base controller class
	require BASEPATH.'core/Controller.php';

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


	if (file_exists(FCPATH.'controllers/Common.php'))
	{
        require FCPATH.'controllers/Common.php';
	}

    if (!defined('APP_DIR')) {
        define('APP_DIR', '');
    }

	// 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.
	$file1 = FCPATH.'controllers/'.ltrim($RTR->fetch_directory(), '/').ucfirst($RTR->fetch_class()).'.php';
	$file2 = FCPATH.'controllers/'.ltrim($RTR->fetch_directory(), '/').ucfirst($RTR->fetch_class()).'Controller.php';
    if ( ! file_exists($file1) && ! file_exists($file2)) {
        if (APP_DIR) {
            require FCPATH.'plugins/'.APP_DIR.'/controllers/Common.php';
            $file1 = FCPATH.'plugins/'.APP_DIR.'/controllers/'.ucfirst($RTR->fetch_class()).'Controller.php';
            $file2 = FCPATH.'plugins/'.APP_DIR.'/controllers/'.ucfirst($RTR->fetch_class()).'.php';
            $file = is_file($file2) ? $file2 : $file1;
        } else {
            show_error('控制器'.ucfirst($RTR->fetch_class()).'或者'.ucfirst($RTR->fetch_class()).'Controller不存在');
        }
	} else {
        if ($RTR->fetch_directory() == 'member/' || $RTR->fetch_directory() == 'admin/') {
            require FCPATH.'controllers/'.$RTR->fetch_directory().'Common.php';
        }
        $file = is_file($file2) ? $file2 : $file1;
    }



	include($file);

	// 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 = $RTR->fetch_method();
    if (strpos($file, 'Controller.php')) {
        $class = ucfirst($class).'Controller';
        $method = $method.'Action';
    } else {
        $class = ucfirst($class);
    }


/*
 * ------------------------------------------------------
 *  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
 * ------------------------------------------------------
 */
	// 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))))
		{
            $class = strtolower(str_replace('Controller', '', $class));
            $method = str_replace('Action', '', $method);
            if (!method_exists($class)) {
                $class = $class.'Controller';
            }
            $CI = new $class();

		}

		// 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();
	}