/**
* Returns an array containing the following information:
* - referer_type
* - direct -- absence of referer URL OR referer URL has the same host
* - site -- based on the referer URL
* - search_engine -- based on the referer URL
* - campaign -- based on campaign URL parameter
*
* - referer_name
* - ()
* - piwik.net -- site host name
* - google.fr -- search engine host name
* - adwords-search -- campaign name
*
* - referer_keyword
* - ()
* - ()
* - my keyword
* - my paid keyword
* - ()
* - ()
*
* - referer_url : the same for all the referer types
*
* @param $refererUrl must be URL Encoded
* @param $currentUrl
* @param $idSite
* @return array
*/
public function getRefererInformation($refererUrl, $currentUrl, $idSite)
{
$this->idsite = $idSite;
// default values for the referer_* fields
$refererUrl = Piwik_Common::unsanitizeInputValue($refererUrl);
if (!empty($refererUrl) && !Piwik_Common::isLookLikeUrl($refererUrl)) {
$refererUrl = '';
}
$currentUrl = Piwik_Tracker_Action::cleanupUrl($currentUrl);
$this->refererUrl = $refererUrl;
$this->refererUrlParse = @parse_url($this->refererUrl);
$this->currentUrlParse = @parse_url($currentUrl);
$this->typeRefererAnalyzed = Piwik_Common::REFERER_TYPE_DIRECT_ENTRY;
$this->nameRefererAnalyzed = '';
$this->keywordRefererAnalyzed = '';
$this->refererHost = '';
if (isset($this->refererUrlParse['host'])) {
$this->refererHost = $this->refererUrlParse['host'];
}
$refererDetected = false;
if (!empty($this->currentUrlParse['host']) && $this->detectRefererCampaign()) {
$refererDetected = true;
}
if (!$refererDetected) {
if ($this->detectRefererDirectEntry() || $this->detectRefererSearchEngine()) {
$refererDetected = true;
}
}
if (!empty($this->refererHost) && !$refererDetected) {
$this->typeRefererAnalyzed = Piwik_Common::REFERER_TYPE_WEBSITE;
$this->nameRefererAnalyzed = mb_strtolower($this->refererHost, 'UTF-8');
}
$refererInformation = array('referer_type' => $this->typeRefererAnalyzed, 'referer_name' => $this->nameRefererAnalyzed, 'referer_keyword' => $this->keywordRefererAnalyzed, 'referer_url' => $this->refererUrl);
return $refererInformation;
}
