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<?php (defined('BASEPATH')) OR exit('No direct script access allowed');
(defined('EXT')) OR define('EXT', '.php');
global $CFG;
/* get module locations from config settings or use the default module location and offset */
is_array(Modules::$locations = $CFG->item('modules_locations')) OR Modules::$locations = array(
APPPATH.'modules/' => '../modules/',
);
/* PHP5 spl_autoload */
spl_autoload_register('Modules::autoload');
/**
* Modular Extensions - HMVC
*
* Adapted from the CodeIgniter Core Classes
* @link http://codeigniter.com
*
* Description:
* This library provides functions to load and instantiate controllers
* and module controllers allowing use of modules and the HMVC design pattern.
*
* Install this file as application/third_party/MX/Modules.php
*
* @copyright Copyright (c) 2015 Wiredesignz
* @version 5.5
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
**/
class Modules
{
public static $routes, $registry, $locations;
/**
* Run a module controller method
* Output from module is buffered and returned.
**/
public static function run($module)
{
$method = 'index';
if(($pos = strrpos($module, '/')) != FALSE)
{
$method = substr($module, $pos + 1);
$module = substr($module, 0, $pos);
}
if($class = self::load($module))
{
if (method_exists($class, $method)) {
ob_start();
$args = func_get_args();
$output = call_user_func_array(array($class, $method), array_slice($args, 1));
$buffer = ob_get_clean();
return ($output !== NULL) ? $output : $buffer;
}
}
log_message('error', "Module controller failed to run: {$module}/{$method}");
}
/** Load a module controller **/
public static function load($module)
{
(is_array($module)) ? list($module, $params) = each($module) : $params = NULL;
/* get the requested controller class name */
$alias = strtolower(basename($module));
/* create or return an existing controller from the registry */
if ( ! isset(self::$registry[$alias]))
{
/* find the controller */
list($class) = CI::$APP->router->locate(explode('/', $module));
/* controller cannot be located */
if (empty($class)) return;
/* set the module directory */
$path = APPPATH.'controllers/'.CI::$APP->router->directory;
/* load the controller class */
$class = $class.CI::$APP->config->item('controller_suffix');
self::load_file(ucfirst($class), $path);
/* create and register the new controller */
$controller = ucfirst($class);
self::$registry[$alias] = new $controller($params);
}
return self::$registry[$alias];
}
/** Library base class autoload **/
public static function autoload($class)
{
/* don't autoload CI_ prefixed classes or those using the config subclass_prefix */
if (strstr($class, 'CI_') OR strstr($class, config_item('subclass_prefix'))) return;
/* autoload Modular Extensions MX core classes */
if (strstr($class, 'MX_'))
{
if (is_file($location = dirname(__FILE__).'/'.substr($class, 3).EXT))
{
include_once $location;
return;
}
show_error('Failed to load MX core class: '.$class);
}
/* autoload core classes */
if(is_file($location = APPPATH.'core/'.ucfirst($class).EXT))
{
include_once $location;
return;
}
/* autoload library classes */
if(is_file($location = APPPATH.'libraries/'.ucfirst($class).EXT))
{
include_once $location;
return;
}
}
/** Load a module file **/
public static function load_file($file, $path, $type = 'other', $result = TRUE)
{
$file = str_replace(EXT, '', $file);
$location = $path.$file.EXT;
if ($type === 'other')
{
if (class_exists($file, FALSE))
{
log_message('debug', "File already loaded: {$location}");
return $result;
}
include_once $location;
}
else
{
/* load config or language array */
include $location;
if ( ! isset($$type) OR ! is_array($$type))
show_error("{$location} does not contain a valid {$type} array");
$result = $$type;
}
log_message('debug', "File loaded: {$location}");
return $result;
}
/**
* Find a file
* Scans for files located within modules directories.
* Also scans application directories for models, plugins and views.
* Generates fatal error if file not found.
**/
public static function find($file, $module, $base)
{
$segments = explode('/', $file);
$file = array_pop($segments);
$file_ext = (pathinfo($file, PATHINFO_EXTENSION)) ? $file : $file.EXT;
$path = ltrim(implode('/', $segments).'/', '/');
$module ? $modules[$module] = $path : $modules = array();
if ( ! empty($segments))
{
$modules[array_shift($segments)] = ltrim(implode('/', $segments).'/','/');
}
foreach (Modules::$locations as $location => $offset)
{
foreach($modules as $module => $subpath)
{
$fullpath = $location.$module.'/'.$base.$subpath;
if ($base == 'libraries/' OR $base == 'models/')
{
if(is_file($fullpath.ucfirst($file_ext))) return array($fullpath, ucfirst($file));
}
else
/* load non-class files */
if (is_file($fullpath.$file_ext)) return array($fullpath, $file);
}
}
return array(FALSE, $file);
}
/** Parse module routes **/
public static function parse_routes($module, $uri)
{
/* load the route file */
if ( ! isset(self::$routes[$module]))
{
if (list($path) = self::find('routes', $module, 'config/'))
{
$path && self::$routes[$module] = self::load_file('routes', $path, 'route');
}
}
if ( ! isset(self::$routes[$module])) return;
/* parse module routes */
foreach (self::$routes[$module] as $key => $val)
{
$key = str_replace(array(':any', ':num'), array('.+', '[0-9]+'), $key);
if (preg_match('#^'.$key.'$#', $uri))
{
if (strpos($val, '$') !== FALSE AND strpos($key, '(') !== FALSE)
{
$val = preg_replace('#^'.$key.'$#', $val, $uri);
}
return explode('/', $module.'/'.$val);
}
}
}
}