class.tx_realurl_crawler.php

<?php
/***************************************************************
 *  Copyright notice
 *
 *  (c) 2009 AOE media
 *  All rights reserved
 *
 *  This script is part of the Typo3 project. The Typo3 project is
 *  free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  The GNU General Public License can be found at
 *  http://www.gnu.org/copyleft/gpl.html.
 *  A copy is found in the textfile GPL.txt and important notices to the license
 *  from the author is found in LICENSE.txt distributed with these scripts.
 *
 *
 *  This script is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  This copyright notice MUST APPEAR in all copies of the script!
 ***************************************************************/

/**
 *
 * @author	Daniel Poetzinger
 * @package realurl
 * @subpackage aoe_realurlpath
 */
class tx_realurl_crawler {

	/**
	 * Publishes the current page as static HTML file if possible (depends on configuration and other circumstances)
	 * (Hook-function called from TSFE, see ext_localconf.php for configuration)
	 *
	 * @param	object		Reference to parent object (TSFE)
	 * @param	integer		[Not used here]
	 * @return	void
	 */
	function insertPageIncache(&$pObj, $timeOutTime) {
		// Look for "crawler" extension activity:
		// Requirements are that the crawler is loaded, a crawler session is running and tx_cachemgm_recache requested as processing instruction:
		if (
			t3lib_extMgm::isLoaded ( 'crawler' ) 
			&& $pObj->applicationData ['tx_crawler'] ['running'] 
			&& (
				in_array ( 'tx_cachemgm_recache', $pObj->applicationData ['tx_crawler'] ['parameters'] ['procInstructions'] )
				|| 
				in_array ( 'tx_realurl_rebuild', $pObj->applicationData ['tx_crawler'] ['parameters'] ['procInstructions'] )
			)
		) {

			$lconf = array ();
			$lconf ['parameter'] = $GLOBALS ['TSFE']->id;
			$lconf ['returnLast'] = 'url';
			//flush realurl cache for this page:
			$GLOBALS ['TYPO3_DB']->exec_DELETEquery ( 'tx_realurl_urlencodecache', 'page_id=' . intval ( $GLOBALS ['TSFE']->id ) );
			$GLOBALS ['TYPO3_DB']->exec_DELETEquery ( 'tx_realurl_urldecodecache', 'page_id=' . intval ( $GLOBALS ['TSFE']->id ) );
			$GLOBALS ['TSFE']->applicationData ['tx_realurl'] ['_CACHE'] = array ();
			$loginfos = '(lang: ' . $GLOBALS ['TSFE']->sys_language_uid . ' langc:' . $GLOBALS ['TSFE']->sys_language_content . ')';
			$pObj->applicationData ['realurl'] ['crawlermode'] = TRUE;
			$pObj->applicationData ['tx_crawler'] ['log'] [] = 'force linkgeneration: ' . $GLOBALS ['TSFE']->cObj->typolink ( 'test', $lconf ) . $loginfos;
			$pObj->applicationData ['realurl'] ['crawlermode'] = FALSE;
		}
	}
	
	/**
	 * Hook wich disable the page cache if the current request is made by tx_crawler.
	 *
	 * @param array $params            Frontend parameter data
	 * @param tslib_fe $tsfe   Current TSFE
	 *
	 * @see tslib_fe::headerNoCache
	 *
	 * @access public
	 * @return void
	 *
	 * @author Michael Klapper <michael.klapper@aoemedia.de>
	 */
	public function headerNoCache($params, $tsfe) {

		 if (
			t3lib_extMgm::isLoaded('crawler')
			&& $params['pObj']->applicationData['tx_crawler']['running']
			&& in_array('tx_realurl_rebuild', $params['pObj']->applicationData['tx_crawler']['parameters']['procInstructions'])
		) {
			$params['pObj']->applicationData['tx_crawler']['log'][] = 'Force page generation (realurl - rebuild)';

				// force fresh page generation without using cache data 
			$tsfe->all = '';
		}
	}
}

?>