/**
* Generates a unique user ID from the current user-specific properties.
*
* @link http://code.google.com/p/gaforflash/source/browse/trunk/src/com/google/analytics/v4/Tracker.as#563
* @return int
*/
protected function generateUniqueId()
{
// There seems to be an error in the gaforflash code, so we take the formula
// from http://xahlee.org/js/google_analytics_tracker_2010-07-01_expanded.js line 711
// instead ("&" instead of "*")
return (Util::generate32bitRandom() ^ $this->generateHash()) & 0x7fffffff;
}
/**
* @link http://code.google.com/p/gaforflash/source/browse/trunk/src/com/google/analytics/core/DocumentInfo.as#52
* @return int
*/
protected function generateSessionId()
{
// TODO: Integrate AdSense support
return Util::generate32bitRandom();
}
/**
* @return \UnitedPrototype\GoogleAnalytics\Internals\ParameterHolder
*/
protected function buildParameters()
{
$p = new ParameterHolder();
$p->utmac = $this->tracker->getAccountId();
$p->utmhn = $this->tracker->getDomainName();
$p->utmt = $this->getType();
$p->utmn = Util::generate32bitRandom();
$p->aip = $this->tracker->getConfig()->getAnonymizeIpAddresses() ? 1 : null;
// The IP parameter does sadly seem to be ignored by GA, so we
// shouldn't set it as of today but keep it here for later reference
// $p->utmip = $this->visitor->getIpAddress();
$p->utmhid = $this->session->getSessionId();
$p->utms = $this->session->getTrackCount();
$p = $this->buildVisitorParameters($p);
$p = $this->buildCustomVariablesParameter($p);
$p = $this->buildCampaignParameters($p);
$p = $this->buildCookieParameters($p);
return $p;
}
/**
* @return \UnitedPrototype\GoogleAnalytics\Internals\ParameterHolder
*/
protected function buildParameters()
{
$p = new ParameterHolder();
$p->utmac = $this->tracker->getAccountId();
$p->utmhn = $this->tracker->getDomainName();
$p->utmt = $this->getType();
$p->utmn = Util::generate32bitRandom();
// The "utmip" parameter is only relevant if a mobile analytics
// ID (MO-123456-7) was given,
// see http://code.google.com/p/php-ga/issues/detail?id=9
$p->utmip = $this->visitor->getIpAddress();
$p->aip = $this->tracker->getConfig()->getAnonymizeIpAddresses() ? 1 : null;
if ($p->aip) {
// Anonymize last IP block
$p->utmip = substr($p->utmip, 0, strrpos($p->utmip, '.')) . '.0';
}
$p->utmhid = $this->session->getSessionId();
$p->utms = $this->session->getTrackCount();
$p = $this->buildVisitorParameters($p);
$p = $this->buildCustomVariablesParameter($p);
$p = $this->buildCampaignParameters($p);
$p = $this->buildCookieParameters($p);
return $p;
}
