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<?php |
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/** |
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* Nexcess.net Turpentine Extension for Magento |
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* Copyright (C) 2012 Nexcess.net L.L.C. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with this program; if not, write to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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*/ |
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class Nexcessnet_Turpentine_Model_Observer_Varnish extends Varien_Event_Observer { |
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/** |
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* Check sentinel flags and set headers/cookies as needed |
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* |
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* Events: http_response_send_before |
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* |
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* @param mixed $eventObject |
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* @return null |
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*/ |
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View Code Duplication |
public function setCacheFlagHeader($eventObject) { |
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$response = $eventObject->getResponse(); |
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if (Mage::helper('turpentine/varnish')->shouldResponseUseVarnish()) { |
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$response->setHeader('X-Turpentine-Cache', |
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Mage::registry('turpentine_nocache_flag') ? '0' : '1'); |
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if (Mage::helper('turpentine/varnish')->getVarnishDebugEnabled()) { |
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Mage::helper('turpentine/debug')->logDebug( |
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'Set Varnish cache flag header to: '. |
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(Mage::registry('turpentine_nocache_flag') ? '0' : '1') ); |
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} |
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} |
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} |
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/** |
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* Add a rewrite for catalog/product_list_toolbar if config option enabled |
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* |
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* @param Varien_Object $eventObject |
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* @return null |
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*/ |
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public function addProductListToolbarRewrite($eventObject) { |
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if (Mage::helper('turpentine/varnish')->shouldFixProductListToolbar()) { |
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Mage::getSingleton('turpentine/shim_mage_core_app') |
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->shim_addClassRewrite('block', 'catalog', 'product_list_toolbar', |
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'Nexcessnet_Turpentine_Block_Catalog_Product_List_Toolbar'); |
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} |
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} |
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/** |
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* Turpentine sets the fake cookie 'frontend=crawler-session' when a crawler is detected. |
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* This causes lock problems with Cm_RedisSession, because all crawler hits are requesting the same session lock. |
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* Cm_RedisSession provides the define CM_REDISSESSION_LOCKING_ENABLED to overrule if locking should be enabled. |
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* |
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* @param $eventObject |
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* @return null |
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*/ |
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public function fixCmRedisSessionLocks($eventObject) { |
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if (Mage::helper('core')->isModuleEnabled('Cm_RedisSession')) { |
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if ( ! empty($_COOKIE['frontend']) && 'crawler-session' == $_COOKIE['frontend'] && |
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! defined('CM_REDISSESSION_LOCKING_ENABLED')) { |
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define('CM_REDISSESSION_LOCKING_ENABLED', false); |
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} |
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} |
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} |
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/** |
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* Re-apply and save Varnish configuration on config change |
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* |
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* @param mixed $eventObject |
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* @return null |
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*/ |
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public function adminSystemConfigChangedSection($eventObject) { |
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if (Mage::helper('turpentine/varnish')->getVarnishEnabled() && |
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Mage::helper('turpentine/data')->getAutoApplyOnSave()) { |
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$result = Mage::getModel('turpentine/varnish_admin')->applyConfig(); |
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$session = Mage::getSingleton('core/session'); |
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$helper = Mage::helper('turpentine'); |
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foreach ($result as $name => $value) { |
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if ($value === true) { |
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$session->addSuccess($helper |
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->__('VCL successfully applied to: '.$name)); |
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} else { |
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$session->addError($helper |
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->__(sprintf('Failed to apply the VCL to %s: %s', |
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$name, $value))); |
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} |
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} |
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$cfgr = Mage::getModel('turpentine/varnish_admin')->getConfigurator(); |
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if (is_null($cfgr)) { |
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$session->addError($helper |
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->__('Failed to load configurator')); |
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} else { |
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$result = $cfgr->save($cfgr->generate($helper->shouldStripVclWhitespace('save'))); |
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if ($result[0]) { |
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$session->addSuccess($helper |
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->__('The VCL file has been saved.')); |
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} else { |
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$session->addError($helper |
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->__('Failed to save the VCL file: '.$result[1]['message'])); |
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} |
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} |
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} |
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} |
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} |
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nexcess /
magento-turpentine
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.