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<?php
/**
* @version        $Id: application.php 14401 2010-01-26 14:10:00Z louis $
* @package        Joomla
* @copyright    Copyright (C) 2005 - 2010 Open Source Matters. All rights reserved.
* @license        GNU/GPL, see LICENSE.php
* Joomla! is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See COPYRIGHT.php for copyright notices and details.
*/

// no direct access
defined( '_JEXEC' ) or die( 'Restricted access' );

jimport('joomla.application.component.helper');

/**
* Joomla! Application class
*
* Provide many supporting API functions
*
* @package        Joomla
* @final
*/
class JSite extends JApplication
{
    /**
    * Class constructor
    *
    * @access protected
    * @param    array An optional associative array of configuration settings.
    * Recognized key values include 'clientId' (this list is not meant to be comprehensive).
    */
    function __construct($config = array())
    {
        $config['clientId']   = 0;
        $config['multisite']  = true;

        parent::__construct($config);
    }

    /**
    * Initialise the application.
    *
    * @access public
    */
    function initialise( $options = array())
    {
        // if a language was specified it has priority
        // otherwise use user or default language settings
        if (empty($options['language']))
        {
            $user = & JFactory::getUser();
            $lang    = $user->getParam( 'language' );

            // Make sure that the user's language exists
            if ( $lang && JLanguage::exists($lang) ) {
                $options['language'] = $lang;
            }
            else
            {
                $params =  JComponentHelper::getParams('com_extensions');
                $client    =& JApplicationHelper::getClientInfo($this->getClientId());
                $options['language'] = $params->get('language_'.$client->name, 'en-GB');
            }

        }

        // One last check to make sure we have something
        if ( ! JLanguage::exists($options['language']) ) {
            $options['language'] = 'en-GB';
        }

        parent::initialise($options);
    }

    /**
     * Route the application
     *
     * This function will perform a 301 redirect to the default menu item if the route is empty
     * to avoid duplicate URL's
     *
     * @param    object A JURI object.
     * @access public
     */
    function route($uri = null)
    {
        if(!isset($uri)) {
            $uri = clone(JURI::getInstance());
        }

        if(KRequest::type() != 'AJAX')
        {
             // get the route based on the path
             $route = trim(str_replace(array(JURI::base(true), $this->getSite(), 'index.php'), '', $uri->getPath()), '/');

             //Redirect to the default menu item if the route is empty
            if(empty($route) && $this->getRouter()->getMode() == JROUTER_MODE_SEF)
            {
               $route = JRoute::_('index.php?Itemid='.$this->getMenu()->getDefault()->id);
               $this->redirect($route, '', '', true);
            }
        }

        parent::route($uri);
    }

    /**
     * Redirect to another URL.
     *
     * We need to make sure that all the redirect URL's are routed.
     *
     * @see    JApplication::redirect()
     */
    function redirect( $url, $msg='', $msgType='message', $moved = false )
    {
        parent::redirect(JRoute::_($url, false), $msg, $msgType, $moved);
    }

    /**
     * Dispatch the application
     *
     * @access public
     */
    function dispatch()
    {
        $document    = JFactory::getDocument();
        $user        = JFactory::getUser();
        $router     = $this->getRouter();
        $params     = $this->getParams();

        $option = strtolower(JRequest::getCmd('option'));

        if(!($this->getCfg('offline') && JFactory::getUser()->get('guest')))
        {
            if(!$this->getMenu()->authorize(JRequest::getInt( 'Itemid'), $user->get('aid')))
            {
                if (!$user->get('aid')) {
                    $option = 'com_users';
                } else {
                    JError::raiseError( 403, JText::_('ALERTNOTAUTH') );
                }
            }
        }
        else $option = 'com_users';

        switch($document->getType())
        {
            case 'html':
            {
                if ( $user->get('id') ) {
                    $document->addScript( JURI::root(true).'/media/system/js/legacy.js');
                }

                if($router->getMode() == JROUTER_MODE_SEF) {
                    $document->setBase(JURI::current());
                }

            } break;

            case 'feed':
            {
                $document->setBase(JURI::current());
            } break;

            default: break;
        }

        $document->setTitle( $params->get('page_title') );
        $document->setDescription( $params->get('page_description') );

        JRequest::setVar('option', $option);
        $contents = JComponentHelper::renderComponent($option);
        $document->setBuffer( $contents, 'component');
    }

    /**
     * Display the application.
     *
     * @access public
     */
    function render()
    {
        $document = JFactory::getDocument();
        $user     = JFactory::getUser();

        switch($document->getType())
        {
            case 'feed' :
            {
                $params = array();
            } break;

            case 'html' :
            default     :
            {
                $template    = $this->getTemplate();
                $file         = JRequest::getCmd('tmpl', 'index');

                if ($this->getCfg('offline') && JFactory::getUser()->get('guest')) {
                    $file = 'login';
                }

                if (!is_dir( JPATH_THEMES.DS.$template ) && !$this->getCfg('offline')) {
                    $file = 'component';
                }

                $params = array(
                    'template'     => $template,
                    'file'        => $file.'.php',
                    'directory'    => JPATH_THEMES
                );

            } break;
         }

         //Render the document
        $data = $document->render( $this->getCfg('caching'), $params);

        //Make images paths absolute
        $path = JURI::root(true).'/'.str_replace(JPATH_ROOT.DS, '', JPATH_IMAGES.'/');

        $data = str_replace(JURI::base().'images/', $path, $data);
        $data = str_replace(array('"images/','"/images/') , '"'.$path, $data);

        JResponse::setBody($data);
    }

    /**
     * Get the appliaction parameters
     *
     * @param    string    The component option
     * @return    object    The parameters object
     * @since    1.5
     */
    function &getParams($option = null)
    {
        static $params = array();
        $hash = '__default';

        if(!empty($option)) {
            $hash = $option;
        }

        if (!isset($params[$hash]))
        {
            // Get component parameters
            if (!$option) {
                $option = JRequest::getCmd('option');
            }

            $params[$hash] =& JComponentHelper::getParams($option);

            // Get menu parameters
            $menus    =& JSite::getMenu();
            $menu    = $menus->getActive();

            $title       = htmlspecialchars_decode($this->getCfg('sitename' ));

            // Lets cascade the parameters if we have menu item parameters
            if (is_object($menu))
            {
                $params[$hash]->merge(new JParameter($menu->params));
                $title = $menu->name;

            }

            $params[$hash]->def( 'page_title'      , $title );
            $params[$hash]->def( 'page_description', '' );
        }

        return $params[$hash];
    }

    /**
     * Get the appliaction parameters
     *
     * @param    string    The component option
     * @return    object    The parameters object
     * @since    1.5
     */
    function &getPageParameters( $option = null )
    {
        return $this->getParams( $option );
    }

    /**
     * Get the template
     *
     * @return string The template name
     * @since 1.0
     */
    function getTemplate()
    {
        // Allows for overriding the active template from a component, and caches the result of this function
        // e.g. $mainframe->setTemplate('solar-flare-ii');
        if ($template = $this->get('setTemplate')) {
            return $template;
        }

        $template = JComponentHelper::getParams('com_extensions')->get('template_site');

        // Allows for overriding the active template from the request
        $template = JRequest::getCmd('template', $template);
        $template = JFilterInput::clean($template, 'cmd'); // need to filter the default value as well

        // Fallback template
        if (!file_exists(JPATH_THEMES.DS.$template.DS.'index.php')) {
            $template = 'rhuk_milkyway';
        }

        // Cache the result
        $this->set('setTemplate', $template);
        return $template;
    }

    /**
     * Overrides the default template that would be used
     *
     * @param string The template name
     */
    function setTemplate( $template )
    {
        if (is_dir(JPATH_THEMES.DS.$template)) {
            $this->set('setTemplate', $template);
        }
    }

    /**
     * Return a reference to the JPathway object.
     *
     * @access public
     * @return object JPathway.
     * @since 1.5
     */
    function &getMenu()
    {
        $options = array();
        $menu =& parent::getMenu('site', $options);
        return $menu;
    }

    /**
     * Return a reference to the JPathway object.
     *
     * @access public
     * @return object JPathway.
     * @since 1.5
     */
    function &getPathWay()
    {
        $options = array();
        $pathway =& parent::getPathway('site', $options);
        return $pathway;
    }

    /**
     * Return a reference to the JRouter object.
     *
     * @access    public
     * @return    JRouter.
     * @since    1.5
     */
    function &getRouter()
    {
        $config =& JFactory::getConfig();
        $options['mode'] = $config->getValue('config.sef');
        $router =& parent::getRouter('site', $options);
        return $router;
    }

    /**
     * Load the user session or create a new one
     *
     * @param    string    The sessions name.
     * @return    object    JSession on success. May call exit() on database error.
     * @since    Nooku Server 0.7
     */
    protected function _loadSession( $name, $ssl = false, $auto_start = true )
    {
        if($this->getCfg('force_ssl') == 2) {
            $ssl = true;
        }

        return parent::_loadSession($name, $ssl, $auto_start);
    }

    /**
     * Load the site
     *
     * This function tries to find the site based on the url, root folder or
     * request. If not found it falls back on the default.
     *
     * @param    string    $site     The name of the site to load
     * @return    void
     * @throws  KException     If the site could not be found
     * @since    Nooku Server 0.7
     */
    protected function _loadSite($site = null)
    {
        if(!$site)
        {
            // Check URL host
            $uri = clone(JURI::getInstance());

            $host = $uri->getHost();
            if(KService::get('com://admin/sites.model.sites')->getList()->find($host)) {
                return parent::_loadSite($host);
            }

            // Check folder
            $path = trim(str_replace(array(JURI::base(true)), '', $uri->getPath()), '/');
            $path = trim(str_replace('index.php', '', $path), '/');

            if(!empty($path))
            {
                $folder = array_shift(explode('/', $path));

                if(KService::get('com://admin/sites.model.sites')->getList()->find($folder)) {
                    return parent::_loadSite($folder);
                }
            }

            // Check request
            $method = strtolower(KRequest::method());

            if(KRequest::has($method.'.site'))
            {
                $request = KRequest::get($method.'.site', 'cmd');
                return parent::_loadSite($request);
            }

            //Revert to default
            return parent::_loadSite('default');
        }

        return parent::_loadSite($site);
    }
}
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