/**
* Notify Event Handler
*
* @param unknown_type $event
* @access public
*/
function notify($event)
{
$medium = $event->get('medium');
// if there is no session referer then return
if (!$event->get('session_referer')) {
return OWA_EHS_EVENT_HANDLED;
}
// Make entity
$r = owa_coreAPI::entityFactory('base.referer');
$r->load($event->get('referer_id'));
if (!$r->wasPersisted()) {
// Set id
if ($event->get('referer_id')) {
$r->set('id', $event->get('referer_id'));
} else {
$r->set('id', $r->generateId($event->get('session_referer')));
}
// set referer url
$r->set('url', $event->get('session_referer'));
// Set site
$url = owa_lib::parse_url($event->get('session_referer'));
$r->set('site', $url['host']);
if ($medium === 'organic-search') {
$r->set('is_searchengine', true);
}
// set title. this will be updated later by the crawler.
$r->set('page_title', '(not set)');
// Crawl and analyze refering page
if (owa_coreAPI::getSetting('base', 'fetch_refering_page_info') && $medium != 'organic-search') {
//owa_coreAPI::debug('hello from logReferer');
$crawler = new owa_http();
//$crawler->fetch($this->params['HTTP_REFERER']);
$res = $crawler->getRequest($event->get('session_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;
}
}
