| <?php | |
| // | |
| // Open Web Analytics - An Open Source Web Analytics Framework | |
| // | |
| // Copyright 2006 Peter Adams. All rights reserved. | |
| // | |
| // Licensed under GPL v2.0 http://www.gnu.org/copyleft/gpl.html | |
| // | |
| // Unless required by applicable law or agreed to in writing, software | |
| // distributed under the License is distributed on an "AS IS" BASIS, | |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| // See the License for the specific language governing permissions and | |
| // limitations under the License. | |
| // | |
| // $Id$ | |
| // | |
| if(!class_exists('owa_observer')) { | |
| require_once(OWA_BASE_DIR.'owa_observer.php'); | |
| } | |
| require_once(OWA_BASE_DIR.DIRECTORY_SEPARATOR.'ini_db.php'); | |
| if (!class_exists('owa_http')) { | |
| require_once(OWA_BASE_DIR.DIRECTORY_SEPARATOR.'owa_httpRequest.php'); | |
| } | |
| /** | |
| * OWA Referer Event handlers | |
| * | |
| * @author Peter Adams <peter@openwebanalytics.com> | |
| * @copyright Copyright © 2006 Peter Adams <peter@openwebanalytics.com> | |
| * @license http://www.gnu.org/copyleft/gpl.html GPL v2.0 | |
| * @category owa | |
| * @package owa | |
| * @version $Revision$ | |
| * @since owa 1.0.0 | |
| */ | |
| class owa_refererHandlers extends owa_observer { | |
| /** | |
| * Notify Event Handler | |
| * | |
| * @param unknown_type $event | |
| * @access public | |
| */ | |
| function notify($event) { | |
| if (!$event->get('external_referer')) { | |
| return; | |
| } | |
| // Make entity | |
| $r = owa_coreAPI::entityFactory('base.referer'); | |
| $r->load( $r->generateId( $event->get( 'HTTP_REFERER' ) ) ); | |
| if ( ! $r->wasPersisted() ) { | |
| // set referer url | |
| $r->set('url', $event->get('HTTP_REFERER')); | |
| // check for search engine | |
| $se_info = $this->lookupSearchEngine($event->get('HTTP_REFERER')); | |
| if (!empty($se_info)) { | |
| $r->set('is_searchengine', true); | |
| $r->set('site_name', $se_info->name); | |
| } | |
| // Set site | |
| $url = parse_url($event->get('HTTP_REFERER')); | |
| $r->set('site', $url['host']); | |
| if ($event->get('source') === 'organic-search') { | |
| $r->set('is_searchengine', true); | |
| } | |
| // set title. this will be updated later by the crawler. | |
| $r->set('page_title', '(not set)'); | |
| // Set id | |
| $r->set('id', owa_lib::setStringGuid($event->get('HTTP_REFERER'))); | |
| // Crawl and analyze refering page | |
| if (owa_coreAPI::getSetting('base', 'fetch_refering_page_info')) { | |
| //owa_coreAPI::debug('hello from logReferer'); | |
| $crawler = new owa_http; | |
| //$crawler->fetch($this->params['HTTP_REFERER']); | |
| $res = $crawler->getRequest($event->get('HTTP_REFERER')); | |
| owa_coreAPI::debug('http request response: '.print_r($res, true)); | |
| //Extract Title | |
| $title = trim($crawler->extract_title()); | |
| if ($title) { | |
| $r->set('page_title', owa_lib::utf8Encode( $title ) ); | |
| } | |
| $se = $r->get('is_searchengine'); | |
| //Extract anchortext and page snippet but not if it's a search engine... | |
| if ($se != true) { | |
| $snippet = $crawler->extract_anchor_snippet($event->get('inbound_page_url')); | |
| if ($snippet) { | |
| if (function_exists('iconv')) { | |
| $snippet = iconv('UTF-8','UTF-8//TRANSLIT',$snippet); | |
| } | |
| $r->set('snippet', $snippet); | |
| } | |
| $anchortext = $crawler->anchor_info['anchor_text']; | |
| if ($anchortext) { | |
| $r->set('refering_anchortext', owa_lib::utf8Encode( $anchortext ) ); | |
| } | |
| } | |
| } | |
| // Persist to database | |
| $ret = $r->create(); | |
| if ( $ret ) { | |
| return OWA_EHS_EVENT_HANDLED; | |
| } else { | |
| return OWA_EHS_EVENT_FAILED; | |
| } | |
| } else { | |
| owa_coreAPI::debug('Not Persisting. Referrer already exists.'); | |
| return OWA_EHS_EVENT_HANDLED; | |
| } | |
| } | |
| /** | |
| * Lookup info about referring domain | |
| * | |
| * @param string $referer | |
| * @return object | |
| * @access private | |
| */ | |
| function lookupSearchEngine($referer) { | |
| /* Look for match against Search engine groups */ | |
| $db = new ini_db(owa_coreAPI::getSetting('base', 'search_engines.ini'), $sections = true); | |
| $se_info = $db->fetch($referer); | |
| if (!empty($se_info->name)): | |
| return $se_info; | |
| else: | |
| return false; | |
| endif; | |
| } | |
| } | |
| ?> |