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<?php
/**
* Joomla! Content Management System
*
* @copyright (C) 2011 Open Source Matters, Inc. <https://www.joomla.org>
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
namespace Joomla\CMS\Application;
\defined('JPATH_PLATFORM') or die;
use Joomla\Application\AbstractWebApplication;
use Joomla\Application\Web\WebClient;
use Joomla\CMS\Document\Document;
use Joomla\CMS\Factory;
use Joomla\CMS\Input\Input;
use Joomla\CMS\Language\Language;
use Joomla\CMS\Session\Session;
use Joomla\CMS\Uri\Uri;
use Joomla\CMS\User\User;
use Joomla\CMS\Version;
use Joomla\Registry\Registry;
use Joomla\Session\SessionEvent;
use Psr\Http\Message\ResponseInterface;
/**
* Base class for a Joomla! Web application.
*
* @since 2.5.0
*/
abstract class WebApplication extends AbstractWebApplication
{
use EventAware, IdentityAware;
/**
* The application document object.
*
* @var Document
* @since 1.7.3
*/
protected $document;
/**
* The application language object.
*
* @var Language
* @since 1.7.3
*/
protected $language;
/**
* The application instance.
*
* @var static
* @since 1.7.3
*/
protected static $instance;
/**
* Class constructor.
*
* @param Input $input An optional argument to provide dependency injection for the application's
* input object. If the argument is a JInput object that object will become
* the application's input object, otherwise a default input object is created.
* @param Registry $config An optional argument to provide dependency injection for the application's
* config object. If the argument is a Registry object that object will become
* the application's config object, otherwise a default config object is created.
* @param WebClient $client An optional argument to provide dependency injection for the application's
* client object. If the argument is a WebClient object that object will become
* the application's client object, otherwise a default client object is created.
* @param ResponseInterface $response An optional argument to provide dependency injection for the application's
* response object. If the argument is a ResponseInterface object that object
* will become the application's response object, otherwise a default response
* object is created.
*
* @since 1.7.3
*/
public function __construct(Input $input = null, Registry $config = null, WebClient $client = null, ResponseInterface $response = null)
{
// Ensure we have a CMS Input object otherwise the DI for \Joomla\CMS\Session\Storage\JoomlaStorage fails
$input = $input ?: new Input;
parent::__construct($input, $config, $client, $response);
// Set the execution datetime and timestamp;
$this->set('execution.datetime', gmdate('Y-m-d H:i:s'));
$this->set('execution.timestamp', time());
// Set the system URIs.
$this->loadSystemUris();
}
/**
* Returns a reference to the global WebApplication object, only creating it if it doesn't already exist.
*
* This method must be invoked as: $web = WebApplication::getInstance();
*
* @param string $name The name (optional) of the JApplicationWeb class to instantiate.
*
* @return WebApplication
*
* @since 1.7.3
* @throws \RuntimeException
* @deprecated 5.0 Use \Joomla\CMS\Factory::getContainer()->get($name) instead
*/
public static function getInstance($name = null)
{
// Only create the object if it doesn't exist.
if (empty(static::$instance))
{
if (!is_subclass_of($name, '\\Joomla\\CMS\\Application\\WebApplication'))
{
throw new \RuntimeException(sprintf('Unable to load application: %s', $name), 500);
}
static::$instance = new $name;
}
return static::$instance;
}
/**
* Execute the application.
*
* @return void
*
* @since 1.7.3
*/
public function execute()
{
// Trigger the onBeforeExecute event.
$this->triggerEvent('onBeforeExecute');
// Perform application routines.
$this->doExecute();
// Trigger the onAfterExecute event.
$this->triggerEvent('onAfterExecute');
// If we have an application document object, render it.
if ($this->document instanceof Document)
{
// Trigger the onBeforeRender event.
$this->triggerEvent('onBeforeRender');
// Render the application output.
$this->render();
// Trigger the onAfterRender event.
$this->triggerEvent('onAfterRender');
}
// If gzip compression is enabled in configuration and the server is compliant, compress the output.
if ($this->get('gzip') && !ini_get('zlib.output_compression') && (ini_get('output_handler') !== 'ob_gzhandler'))
{
$this->compress();
}
// Trigger the onBeforeRespond event.
$this->triggerEvent('onBeforeRespond');
// Send the application response.
$this->respond();
// Trigger the onAfterRespond event.
$this->triggerEvent('onAfterRespond');
}
/**
* Rendering is the process of pushing the document buffers into the template
* placeholders, retrieving data from the document and pushing it into
* the application response buffer.
*
* @return void
*
* @since 1.7.3
*/
protected function render()
{
// Setup the document options.
$options = array(
'template' => $this->get('theme'),
'file' => $this->get('themeFile', 'index.php'),
'params' => $this->get('themeParams'),
'templateInherits' => $this->get('themeInherits'),
);
if ($this->get('themes.base'))
{
$options['directory'] = $this->get('themes.base');
}
// Fall back to constants.
else
{
$options['directory'] = \defined('JPATH_THEMES') ? JPATH_THEMES : (\defined('JPATH_BASE') ? JPATH_BASE : __DIR__) . '/themes';
}
// Parse the document.
$this->document->parse($options);
// Render the document.
$data = $this->document->render($this->get('cache_enabled'), $options);
// Set the application output data.
$this->setBody($data);
}
/**
* Method to get the application document object.
*
* @return Document The document object
*
* @since 1.7.3
*/
public function getDocument()
{
return $this->document;
}
/**
* Method to get the application language object.
*
* @return Language The language object
*
* @since 1.7.3
*/
public function getLanguage()
{
return $this->language;
}
/**
* Flush the media version to refresh versionable assets
*
* @return void
*
* @since 3.2
*/
public function flushAssets()
{
(new Version)->refreshMediaVersion();
}
/**
* Allows the application to load a custom or default document.
*
* The logic and options for creating this object are adequately generic for default cases
* but for many applications it will make sense to override this method and create a document,
* if required, based on more specific needs.
*
* @param Document $document An optional document object. If omitted, the factory document is created.
*
* @return WebApplication This method is chainable.
*
* @since 1.7.3
*/
public function loadDocument(Document $document = null)
{
$this->document = $document ?? Factory::getDocument();
return $this;
}
/**
* Allows the application to load a custom or default language.
*
* The logic and options for creating this object are adequately generic for default cases
* but for many applications it will make sense to override this method and create a language,
* if required, based on more specific needs.
*
* @param Language $language An optional language object. If omitted, the factory language is created.
*
* @return WebApplication This method is chainable.
*
* @since 1.7.3
*/
public function loadLanguage(Language $language = null)
{
$this->language = $language ?? Factory::getLanguage();
return $this;
}
/**
* Allows the application to load a custom or default session.
*
* The logic and options for creating this object are adequately generic for default cases
* but for many applications it will make sense to override this method and create a session,
* if required, based on more specific needs.
*
* @param Session $session An optional session object. If omitted, the session is created.
*
* @return WebApplication This method is chainable.
*
* @since 1.7.3
* @deprecated 5.0 The session should be injected as a service.
*/
public function loadSession(Session $session = null)
{
$this->getLogger()->warning(__METHOD__ . '() is deprecated. Inject the session as a service instead.', array('category' => 'deprecated'));
return $this;
}
/**
* After the session has been started we need to populate it with some default values.
*
* @param SessionEvent $event Session event being triggered
*
* @return void
*
* @since 3.0.1
*/
public function afterSessionStart(SessionEvent $event)
{
$session = $event->getSession();
if ($session->isNew())
{
$session->set('registry', new Registry);
$session->set('user', new User);
}
// Ensure the identity is loaded
if (!$this->getIdentity())
{
$this->loadIdentity($session->get('user'));
}
}
/**
* Method to load the system URI strings for the application.
*
* @param string $requestUri An optional request URI to use instead of detecting one from the
* server environment variables.
*
* @return void
*
* @since 1.7.3
*/
protected function loadSystemUris($requestUri = null)
{
// Set the request URI.
if (!empty($requestUri))
{
$this->set('uri.request', $requestUri);
}
else
{
$this->set('uri.request', $this->detectRequestUri());
}
// Check to see if an explicit base URI has been set.
$siteUri = trim($this->get('site_uri'));
if ($siteUri != '')
{
$uri = Uri::getInstance($siteUri);
$path = $uri->toString(array('path'));
}
// No explicit base URI was set so we need to detect it.
else
{
// Start with the requested URI.
$uri = Uri::getInstance($this->get('uri.request'));
// If we are working from a CGI SAPI with the 'cgi.fix_pathinfo' directive disabled we use PHP_SELF.
if (strpos(PHP_SAPI, 'cgi') !== false && !ini_get('cgi.fix_pathinfo') && !empty($_SERVER['REQUEST_URI']))
{
// We aren't expecting PATH_INFO within PHP_SELF so this should work.
$path = \dirname($_SERVER['PHP_SELF']);
}
// Pretty much everything else should be handled with SCRIPT_NAME.
else
{
$path = \dirname($_SERVER['SCRIPT_NAME']);
}
}
$host = $uri->toString(array('scheme', 'user', 'pass', 'host', 'port'));
// Check if the path includes "index.php".
if (strpos($path, 'index.php') !== false)
{
// Remove the index.php portion of the path.
$path = substr_replace($path, '', strpos($path, 'index.php'), 9);
}
$path = rtrim($path, '/\\');
// Set the base URI both as just a path and as the full URI.
$this->set('uri.base.full', $host . $path . '/');
$this->set('uri.base.host', $host);
$this->set('uri.base.path', $path . '/');
// Set the extended (non-base) part of the request URI as the route.
if (stripos($this->get('uri.request'), $this->get('uri.base.full')) === 0)
{
$this->set('uri.route', substr_replace($this->get('uri.request'), '', 0, \strlen($this->get('uri.base.full'))));
}
// Get an explicitly set media URI is present.
$mediaURI = trim($this->get('media_uri'));
if ($mediaURI)
{
if (strpos($mediaURI, '://') !== false)
{
$this->set('uri.media.full', $mediaURI);
$this->set('uri.media.path', $mediaURI);
}
else
{
// Normalise slashes.
$mediaURI = trim($mediaURI, '/\\');
$mediaURI = !empty($mediaURI) ? '/' . $mediaURI . '/' : '/';
$this->set('uri.media.full', $this->get('uri.base.host') . $mediaURI);
$this->set('uri.media.path', $mediaURI);
}
}
// No explicit media URI was set, build it dynamically from the base uri.
else
{
$this->set('uri.media.full', $this->get('uri.base.full') . 'media/');
$this->set('uri.media.path', $this->get('uri.base.path') . 'media/');
}
}
/**
* Retrieve the application configuration object.
*
* @return Registry
*
* @since 4.0.0
*/
public function getConfig()
{
return $this->config;
}
}