<?
/**
 * Siteground Joomla Cache Plugin
 *
 * Flushes varnish cache when certain data change actions are invoked. Disables varnish cache
 * on SiteGround servers when users are logged in.
 *
 * @author	   George Penkov
 * @category   Siteground Joomla Plugins
 * @package    Siteground Joomla Cache Plugin
 */

defined('_JEXEC') or die();
JLoader::import('joomla.plugin.plugin');
JLoader::import('joomla.error.log');

/**
 * jSGCache Plugin
 *
 * @package	jSGCache
 * @subpackage	System
*/


class plgSystemjSGCache extends JPlugin
{
	/**
	 * JRegistry parameter object for the plugin.
	 * @var JRegistry
	 */
	public $params = null;
	/**
	 * Web path to the joomla application.
	 * @var string
	 */
	private $_applicationPath = null;
	/**
	 * Global cache flag.
	 * @var bool
	 */
	private $_cacheEnabled = false;
	/**
	 * Auto flush flag
	 * @var bool
	 */
	private $_autoflush = false;
	/**
	 * 3rd party auto flush flag
	 * @var bool
	 */
	private $_autoflush3rdParty = false;
	/**
	 * Client side auto flush flag
	 * @var bool
	 */
	private $_autoflushClientSide = false;
	/**
	 * Which tasks to ignore in the flush monitor
	 * @var array
	 */
	private static $_ignoreTasks = array('login','logout','user.login','user.logout');

	/**
	 * Constructor
	 *
     * @access public
	 * @param   object  &$subject  The object to observe
	 */
	public function __construct( &$subject )
	{
		if(isset($_GET['sgCacheCheck']) && $_GET['sgCacheCheck'] == md5('joomlaCheck'))
			die('OK');
		parent::__construct( $subject );
		$plugin = JPluginHelper::getPlugin('system','jSGCache');
		$this->params= new JRegistry();
		$this->params->loadString($plugin->params, 'JSON');

		$this->_cacheEnabled = $this->params->get('cache_enabled');
		if ($this->_cacheEnabled === null)
			$this->_cacheEnabled == 1;

		$this->_autoflush = $this->params->get('autoFlush');
		if ($this->_autoflush === null)
			$this->_autoflush = 1;
		$this->_autoflush3rdParty = $this->params->get('autoFlush-ThirdParty');
		if ($this->_autoflush3rdParty === null)
			$this->_autoflush3rdParty = 1;
		$this->_autoflushClientSide = $this->params->get('autoFlush-ClientSide');
		if ($this->_autoflushClientSide === null)
			$this->_autoflushClientSide = 0;
	}

    /**
     * Heartbeat cache checking function. Will also monitor $_GET for the jSGCache parameter
     * (pressing the purge cache button in admin)
     *
     *
     * @access public
     * @return null
     */
	public function onAfterInitialise()
	{
		if (!$this->_cacheEnabled || $this->_isBlacklisted($this->_applicationPath))
		{
			JResponse::setHeader('X-Cache-Enabled','False',true);
			return;
		}

		if ($this->_cacheEnabled)
		{
			JResponse::setHeader('X-Cache-Enabled','True',true);
		}

		//Init the application url
		$this->_applicationPath = str_replace(array('administrator/index.php','index.php'),'',str_replace($_SERVER['DOCUMENT_ROOT'],'',$_SERVER['SCRIPT_FILENAME']));

		//Check for any admin action and proceed to flushMonitor and 3rd party plugins
		if ( isset($_POST['task']) || isset($_GET['task']) || isset($_GET['cart_virtuemart_product_id']))
		{
			$this->_flushMonitor();
			if ($this->_autoflush3rdParty)
				$this->_monitorThirdPartyPlugins();
		}

 		//Check if we have a logged in user and enable cache bypass cookie 'task' => string 'user.login'
 		$user = JFactory::getUser();
 		if (!$user->guest  || (isset($_POST['task']) && preg_match('/login/i', $_POST['task'])))
 		{
 			$_POST[JSession::getFormToken()] = 1; //Force the correct token, since the login box on the page is cached with the 1st visitors' token
 			//Enable the cache bypass for logged users by setting a cache bypass cookie
 			setcookie('jSGCacheBypass',1,time() + 6000,'/');
 		}

 		if ($user->guest || (isset($_POST['task']) && $_POST['task'] == 'user.logout'))
 		{
 			//Remove the bypass cookie if not a logged user
 			if (isset($_COOKIE['jSGCacheBypass']))
 				setcookie('jSGCacheBypass',0, time() - 3600,'/');
 		}

		// Handle purge button press when get has jSGCache=purge, but only in admin with a logged user
		if(isset($_GET['jSGCache']) && $_GET['jSGCache'] == 'purge' && JFactory::getApplication()->isAdmin() && !$user->guest )
			$this->_purgeCache(true);
	}

    /**
     * Admin panel icon display
     *
     * @access public
     * @param string $context
     * @return array
     */
	public function onGetIcons( $context )
	{
		return array(array(
			'link'=>'?jSGCache=purge',
			'image'=>'header/icon-48-purge.png',
			'text'=>JText::_('Purge jSGCache'),
			'id'=>'jSGCache'
		));
	}

    /**
     * Calls the cache server to purge the cache
     *
     * @access public
     * @param string|bool $message Message to be displayed if purge is successful. If this param is false no output would be done
     * @return null
     */
	private function _purgeCache( $message = true )
	{
    	$purgeRequest = $this->_applicationPath . '(.*)';

		// Check if caching server is varnish or nginx.
		$sgcache_ip = '/etc/sgcache_ip';
		$hostname = $_SERVER['SERVER_ADDR'];
		$purge_method = "PURGE";
		if (file_exists($sgcache_ip)) {
			$hostname = trim( file_get_contents( $sgcache_ip, true ) );
			$purge_method = "BAN";
		}

		$cacheServerSocket = fsockopen($hostname, 80, $errno, $errstr, 2);

		if(!$cacheServerSocket)
		{
      		JError::raise(E_ERROR,500,JText::_('Connection to cache server failed!'));
      		JError::raise(E_ERROR,500,JText::_($errstr ($errno)));
      		return;
     	}

		$request = "$purge_method {$purgeRequest} HTTP/1.0\r\nHost: {$_SERVER['SERVER_NAME']}\r\nConnection: Close\r\n\r\n";

		if (preg_match('/^www\./',$_SERVER['SERVER_NAME']))
		{ 
			$domain_no_www = preg_replace('/^www\./', '', $_SERVER['SERVER_NAME']);
			$request2 = "$purge_method {$purgeRequest} HTTP/1.0\r\nHost: {$domain_no_www}\r\nConnection: Close\r\n\r\n";
		} 
		else
			$request2 = "$purge_method {$purgeRequest} HTTP/1.0\r\nHost: www.{$_SERVER['SERVER_NAME']}\r\nConnection: Close\r\n\r\n";

      	fwrite($cacheServerSocket, $request);
      	$response = fgets($cacheServerSocket);
      	fclose($cacheServerSocket);

		$cacheServerSocket = fsockopen($hostname, 80, $errno, $errstr, 2);
		fwrite($cacheServerSocket, $request2);
		fclose($cacheServerSocket);

		if($message !== false)
		{
  			if(preg_match('/200/',$response))
  			{
  				if ($message === true)
    					JFactory::getApplication()->enqueueMessage(JText::_('SG Cache Successfully Purged!'));
  				else
  					JFactory::getApplication()->enqueueMessage(JText::_( $message ));
  			}
 			else
 			{
    				JError::raise(E_NOTICE,501, JText::_('SG Cache: Purge was not successful!'));
    				JError::raise(E_NOTICE,501, jText::_('Error: ' . $response));
			}
		}
	}

	/**
	 * Check if url is in caching blacklist
	 *
	 * @param string $applicationPath
	 *
	 * @return bool
	 */
	private function _isBlacklisted($applicationPath)
	{
		$blacklistArray = explode("\n",$this->params->get('blacklist'));

		$blacklistRegexArray = array();
		$indexIsBlacklisted = false;
		foreach($blacklistArray as $key=>$row)
		{
			$row = trim($row);

			if ($row != '/' && $quoted = preg_quote($row,'/'))
				$blacklistRegexArray[$key] = $quoted;

			if ($row == '/')
				$indexIsBlacklisted = true;
		}

		if ($indexIsBlacklisted && $_SERVER['REQUEST_URI'] == $applicationPath)
			return true;

		if (empty($blacklistRegexArray))
			return false;

		$blacklistRegex = '/('.implode('|',$blacklistRegexArray) . ')/i';

		return preg_match($blacklistRegex, $_SERVER['REQUEST_URI']);
	}

	/**
	 * 3rd party plugin monitor
	 *
	 * @access private
	 * @return null
	 */
	private function _monitorThirdPartyPlugins()
	{
		// Kunena & K2
		if ($this->params->get('autoFlush-ThirdParty') == 1 && isset($_POST['option']) &&
			($_POST['option']=='com_k2' || $_POST['option' ]== 'com_kunena'))
		{
			$this->_purgeCache(false);
		}


		// VirtueMart
		if ( (isset($_POST['option']) && $_POST['option'] == 'com_virtuemart') || 
			( isset($_GET['option']) && $_GET['option'] == 'com_virtuemart' ) ||  
			isset($_GET['cart_virtuemart_product_id']) )
		{
			if($this->params->get('autoFlush-ThirdParty') == 1)
				$this->_purgeCache(false);
		}	
	}

	/**
	 * Action monitor
	 *
	 * @access private
	 * @return null
	 */
	private function _flushMonitor()
	{
		$user = JFactory::getUser();
    	if ((!JFactory::getApplication()->isAdmin() && !$this->_autoflushClientSide) || $user->guest)
    		return;

    	$autoflush = $this->params->get('autoFlush');
    	if ($autoflush === null)
    		$autoflush = 1;

    	if (isset($_POST['task']) && $_POST['task'] && !in_array($_POST['task'],self::$_ignoreTasks) && $autoflush == 1)
    		$this->_purgeCache(false);
	}
}
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-gb" lang="en-gb" dir="ltr">
<head>
	<meta name="viewport" content="width=device-width, initial-scale=1.0" />
	  <base href="http://westfieldvillage.co.uk/index.php/about-westfield/70-about-westfield/westfield-wildlife/232-westfield-wildlife" />
  <meta http-equiv="content-type" content="text/html; charset=utf-8" />
  <meta name="keywords" content="joomla, Joomla" />
  <meta name="author" content="Super User" />
  <meta name="description" content="Joomla! - the dynamic portal engine and content management system" />
  <meta name="generator" content="Joomla! - Open Source Content Management" />
  <title>Westfield Wildlife</title>
  <link href="/templates/protostar/favicon.ico" rel="shortcut icon" type="image/vnd.microsoft.icon" />
  <link href="http://westfieldvillage.co.uk/index.php/component/search/?Itemid=108&amp;catid=70&amp;id=232&amp;format=opensearch" rel="search" title="Search Joomla!" type="application/opensearchdescription+xml" />
  <link rel="stylesheet" href="/templates/protostar/css/template.css" type="text/css" />
  <script src="/media/jui/js/jquery.min.js" type="text/javascript"></script>
  <script src="/media/jui/js/jquery-noconflict.js" type="text/javascript"></script>
  <script src="/media/jui/js/jquery-migrate.min.js" type="text/javascript"></script>
  <script src="/media/system/js/caption.js" type="text/javascript"></script>
  <script src="/media/jui/js/bootstrap.min.js" type="text/javascript"></script>
  <script src="/templates/protostar/js/template.js" type="text/javascript"></script>
  <script src="/media/system/js/html5fallback.js" type="text/javascript"></script>
  <script type="text/javascript">
jQuery(window).on('load',  function() {
				new JCaption('img.caption');
			});
  </script>

				<link href='//fonts.googleapis.com/css?family=Open+Sans' rel='stylesheet' type='text/css' />
		<style type="text/css">
			h1,h2,h3,h4,h5,h6,.site-title{
				font-family: 'Open Sans', sans-serif;
			}
		</style>
				<style type="text/css">
		body.site
		{
			border-top: 3px solid #32940f;
			background-color: #b2b8b1		}
		a
		{
			color: #32940f;
		}
		.navbar-inner, .nav-list > .active > a, .nav-list > .active > a:hover, .dropdown-menu li > a:hover, .dropdown-menu .active > a, .dropdown-menu .active > a:hover, .nav-pills > .active > a, .nav-pills > .active > a:hover,
		.btn-primary
		{
			background: #32940f;
		}
		.navbar-inner
		{
			-moz-box-shadow: 0 1px 3px rgba(0, 0, 0, .25), inset 0 -1px 0 rgba(0, 0, 0, .1), inset 0 30px 10px rgba(0, 0, 0, .2);
			-webkit-box-shadow: 0 1px 3px rgba(0, 0, 0, .25), inset 0 -1px 0 rgba(0, 0, 0, .1), inset 0 30px 10px rgba(0, 0, 0, .2);
			box-shadow: 0 1px 3px rgba(0, 0, 0, .25), inset 0 -1px 0 rgba(0, 0, 0, .1), inset 0 30px 10px rgba(0, 0, 0, .2);
		}
	</style>
		<!--[if lt IE 9]>
		<script src="/media/jui/js/html5.js"></script>
	<![endif]-->
</head>

<body class="site com_content view-article no-layout no-task itemid-108">

	<!-- Body -->
	<div class="body">
		<div class="container">
			<!-- Header -->
			<header class="header" role="banner">
				<div class="header-inner clearfix">
					<a class="brand pull-left" href="/">
						<img src="http://westfieldvillage.co.uk/images/banners/banner_summer_2016.jpg" alt="Joomla!" />											</a>
					<div class="header-search pull-right">
						<div class="search">
	<form action="/index.php/about-westfield" method="post" class="form-inline">
		 <button class="button btn btn-primary" onclick="this.form.searchword.focus();">Search</button><label for="mod-search-searchword" class="element-invisible">Search ...</label> <input name="searchword" id="mod-search-searchword" maxlength="200"  class="inputbox search-query" type="search" placeholder="Search ..." />		<input type="hidden" name="task" value="search" />
		<input type="hidden" name="option" value="com_search" />
		<input type="hidden" name="Itemid" value="108" />
	</form>
</div>

					</div>
				</div>
			</header>
							<nav class="navigation" role="navigation">
					<div class="navbar pull-left">
						<a class="btn btn-navbar collapsed" data-toggle="collapse" data-target=".nav-collapse">
							<span class="icon-bar"></span>
							<span class="icon-bar"></span>
							<span class="icon-bar"></span>
						</a>
					</div>
					<div class="nav-collapse">
						<ul class="nav menu nav-pills">
<li class="item-101 parent"><a href="/index.php" >Home</a></li><li class="item-108 current active deeper parent"><a href="/index.php/about-westfield" >About Westfield</a><ul class="nav-child unstyled small"><li class="item-146"><a href="/index.php/about-westfield/maps-and-footpaths" >Maps and Footpaths</a></li><li class="item-147"><a href="/index.php/about-westfield/westfield-footpath-volunteers" >Westfield Footpath Volunteers</a></li><li class="item-242"><a href="/index.php/about-westfield/curious-westfield" >Curious Westfield</a></li></ul></li><li class="item-109 parent"><a href="/index.php/community" >Community</a></li><li class="item-115 parent"><a href="/index.php/local-business" >Local Business</a></li><li class="item-116 parent"><a href="/index.php/parish-council" >Parish Council</a></li><li class="item-117"><a href="/index.php/wca" >WCA</a></li><li class="item-118 parent"><a href="/index.php/events" >Events</a></li><li class="item-119 parent"><a href="/index.php/gallery" >Gallery</a></li><li class="item-120"><a href="/index.php/contact-us" >Contact Us</a></li></ul>

					</div>
				</nav>
						
			<div class="row-fluid">
									<!-- Begin Sidebar -->
					<div id="sidebar" class="span3">
						<div class="sidebar-nav">
							<div class="well "><h3 class="page-header">Village Information</h3><ul class="category-module">
					<li>
			<div class="mod-articles-category-group">About Westfield</div>
			<ul>
									<li>
													<a class="mod-articles-category-title " href="/index.php/about-westfield">
								About Westfield							</a>
							
							
											</li>
									<li>
													<a class="mod-articles-category-title " href="/index.php/about-westfield/curious-westfield">
								The Story of Westfield							</a>
							
							
											</li>
							</ul>
		</li>
				<li>
			<div class="mod-articles-category-group">Community Links</div>
			<ul>
									<li>
													<a class="mod-articles-category-title " href="/index.php/about-westfield/26-about-westfield/community-links/231-community-links">
								Community Links							</a>
							
							
											</li>
									<li>
													<a class="mod-articles-category-title " href="/index.php/about-westfield/26-about-westfield/community-links/237-help-in-the-community">
								Help in the Community							</a>
							
							
											</li>
									<li>
													<a class="mod-articles-category-title " href="/index.php/local-police-team">
								Police							</a>
							
							
											</li>
									<li>
													<a class="mod-articles-category-title " href="/index.php/about-westfield/26-about-westfield/community-links/241-useful-phone-numbers">
								Useful Phone Numbers							</a>
							
							
											</li>
							</ul>
		</li>
				<li>
			<div class="mod-articles-category-group">Hire a Venue</div>
			<ul>
									<li>
													<a class="mod-articles-category-title " href="/index.php/about-westfield/24-about-westfield/village-venues/60-village-venues">
								Hire a Venue							</a>
							
							
											</li>
									<li>
													<a class="mod-articles-category-title " href="/index.php/community-hall-and-dining-room">
								Community Hall and Dining Room							</a>
							
							
											</li>
									<li>
													<a class="mod-articles-category-title " href="/index.php/parish-hall">
								Church (Parish) Hall							</a>
							
							
											</li>
									<li>
													<a class="mod-articles-category-title " href="/index.php/parish-field">
								Parish Field							</a>
							
							
											</li>
							</ul>
		</li>
				<li>
			<div class="mod-articles-category-group">Maps and Footpaths</div>
			<ul>
									<li>
													<a class="mod-articles-category-title " href="/index.php/about-westfield/maps-and-footpaths">
								Maps and Footpaths							</a>
							
							
											</li>
									<li>
													<a class="mod-articles-category-title " href="/index.php/about-westfield/23-about-westfield/maps-and-footpaths/31-footpath-map">
								Footpath map							</a>
							
							
											</li>
									<li>
													<a class="mod-articles-category-title " href="/index.php/about-westfield/23-about-westfield/maps-and-footpaths/246-guided-walks-in-1066-country">
								Guided Walks in 1066 Country							</a>
							
							
											</li>
							</ul>
		</li>
				<li>
			<div class="mod-articles-category-group">Public Transport</div>
			<ul>
									<li>
													<a class="mod-articles-category-title " href="/index.php/about-westfield/72-about-westfield/public-transport/242-bus-services">
								Bus Services							</a>
							
							
											</li>
									<li>
													<a class="mod-articles-category-title " href="/index.php/about-westfield/72-about-westfield/public-transport/243-train-services">
								Train Services							</a>
							
							
											</li>
							</ul>
		</li>
				<li>
			<div class="mod-articles-category-group">Westfield Wildlife</div>
			<ul>
									<li>
													<a class="mod-articles-category-title active" href="/index.php/about-westfield/70-about-westfield/westfield-wildlife/232-westfield-wildlife">
								Westfield Wildlife							</a>
							
							
											</li>
							</ul>
		</li>
			</ul>
</div>
						</div>
					</div>
					<!-- End Sidebar -->
								<main id="content" role="main" class="span9">
					<!-- Begin Content -->
					
					<div id="system-message-container">
	</div>

					<div class="item-page" itemscope itemtype="http://schema.org/Article">
	<meta itemprop="inLanguage" content="en-GB" />
	
		
			<div class="page-header">
		<h2 itemprop="name">
							Westfield Wildlife					</h2>
							</div>
					
	
								<div itemprop="articleBody">
		<h2>Visit the Westfield Wildlife Blog!</h2>
<p>A website to log local wildlife sightings was created in August 2011 by Dave Pankhurst and Ralph Hobbs who have both lived in Westfield for over 30 years. It was hoped that this new facility would be of use to Westfield residents and vistors alike to report anything interesting or unusual found within the Parish boundary. Help with identifying species is also offered.</p>
<p>Click <strong><a href="https://westfieldwildlife.wordpress.com">here</a></strong> to go to the website, or visit their <a href="https://www.facebook.com/groups/1501173310180993">Facebook</a> page.</p>
<p>Any wildlife observation whether mammal, bird, insect, or flower may be posted on the website, and photos are particularly welcome. Have you seen a hedgehog recently? Westfield Wildlife is appealing for all Hedgehog sightings, including any road casualties, because their numbers have declined so drastically over the last few years.</p>
<p><img src="/images/Page_illustrations/Holly-Blue-Westfield-5July2.jpg" alt="Holly Blue Westfield 5July2" /></p>
<p><em>Holly Blue butterfly by Ralph Hobbs, Westfield 5th July 2011.</em></p> 	</div>

	
						</div>

					
					<!-- End Content -->
				</main>
							</div>
		</div>
	</div>
	<!-- Footer -->
	<footer class="footer" role="contentinfo">
		<div class="container">
			<hr />
			
			<p class="pull-right">
				<a href="#top" id="back-top">
					Back to Top				</a>
			</p>
			<p>
				&copy; 2024 Joomla!			</p>
		</div>
	</footer>
	
</body>
</html>