1: <?php
 2: /**
 3:  * Magento
 4:  *
 5:  * NOTICE OF LICENSE
 6:  *
 7:  * This source file is subject to the Open Software License (OSL 3.0)
 8:  * that is bundled with this package in the file LICENSE.txt.
 9:  * It is also available through the world-wide-web at this URL:
10:  * http://opensource.org/licenses/osl-3.0.php
11:  * If you did not receive a copy of the license and are unable to
12:  * obtain it through the world-wide-web, please send an email
13:  * to license@magentocommerce.com so we can send you a copy immediately.
14:  *
15:  * DISCLAIMER
16:  *
17:  * Do not edit or add to this file if you wish to upgrade Magento to newer
18:  * versions in the future. If you wish to customize Magento for your
19:  * needs please refer to http://www.magentocommerce.com for more information.
20:  *
21:  * @category    Mage
22:  * @package     Mage_PageCache
23:  * @copyright   Copyright (c) 2012 Magento Inc. (http://www.magentocommerce.com)
24:  * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
25:  */
26: 
27: /**
28:  * Page cache admin controller
29:  *
30:  * @category    Mage
31:  * @package     Mage_PageCache
32:  * @author      Magento Core Team <core@magentocommerce.com>
33:  */
34: class Mage_PageCache_Adminhtml_PageCacheController extends Mage_Adminhtml_Controller_Action
35: {
36:     /**
37:      * Retrieve session model
38:      *
39:      * @return Mage_Adminhtml_Model_Session
40:      */
41:     protected function _getSession()
42:     {
43:         return Mage::getSingleton('adminhtml/session');
44:     }
45: 
46:     /**
47:      * Clean external cache action
48:      *
49:      * @return void
50:      */
51:     public function cleanAction()
52:     {
53:         try {
54:             if (Mage::helper('pagecache')->isEnabled()) {
55:                 Mage::helper('pagecache')->getCacheControlInstance()->clean();
56:                 $this->_getSession()->addSuccess(
57:                     Mage::helper('pagecache')->__('The external full page cache has been cleaned.')
58:                 );
59:             }
60:         }
61:         catch (Mage_Core_Exception $e) {
62:             $this->_getSession()->addError($e->getMessage());
63:         }
64:         catch (Exception $e) {
65:             $this->_getSession()->addException(
66:                 $e,
67:                 Mage::helper('pagecache')->__('An error occurred while clearing the external full page cache.')
68:             );
69:         }
70:         $this->_redirect('*/cache/index');
71:     }
72: 
73:     /**
74:      * Check current user permission on resource and privilege
75:      *
76:      * @return bool
77:      */
78:     protected function _isAllowed()
79:     {
80:         return Mage::getSingleton('admin/session')->isAllowed('page_cache');
81:     }
82: }
83: