<?php
/* Using Server-Side Google Analytics to Track PDF downloads
http://www.lunametrics.com/blog/2013/06/04/tracking-pdfs-google-analytics-server-side/
Alex Moore  @alMoo
*/
////mail('mbednarz@medicarerights.org','Executed','Tracker Start');
//$file = fopen("/var/www/vhosts/demo.medicareinteractive.org/pdf/debug.log","w");
//echo fwrite($file,"Fired");
//fclose($file);
//$file = fopen("/var/www/vhosts/demo.medicareinteractive.org/pdf/debug.log","w");
//echo fwrite($file,"Fired");
//fclose($file);
// Set header MIME-Type for PDF
//error_log('DEBUG: In the tracker file');

header("Content-type: application/pdf");
//#$file = fopen("/var/www/vhosts/demo.medicareinteractive.org/pdf/debug.log","w");
//#fwrite($file,"Fired".PHP_EOL);
//#fclose($file);
 
// Google Analytics Server Side
//$GA_ACCOUNT = "UA-2999558-23"; // replace with your GA-ID
//include "autoload.php";
//use UnitedPrototype\GoogleAnalytics;
 
// Initilize GA Tracker
//$tracker = new GoogleAnalytics\Tracker($GA_ACCOUNT, 'www.medicarerights.org');
 
// Assemble Visitor information
//$visitor = new GoogleAnalytics\Visitor();
//$visitor->setIpAddress($_SERVER['REMOTE_ADDR']);
//$visitor->setUserAgent($_SERVER['HTTP_USER_AGENT']);
//if(!empty($_COOKIE['__utma'])) $visitor->fromUtma($_COOKIE['__utma']);
//error_log('DEBUG: 1');
//$visitor->fromUtma($_COOKIE['__utma']);
//$visitor->setScreenResolution('1480x1200');
 
// Assemble Session information
//$session = new GoogleAnalytics\Session();
//error_log('DEBUG: 2 ');

//$session->fromUtmb($_COOKIE['__utmb']);
//if(!empty($_COOKIE['__utmb'])) $visitor->fromUtmb($_COOKIE['__utmb']);

//error_log('DEBUG: 3 ');

// Get filename from the previous request
$filename = parse_url(urldecode($_SERVER['REQUEST_URI']), PHP_URL_PATH);
//$filetype = preg_replace("/.+\.(.+)/i","$1",$filename);
 
// Assemble Page information
//$page = new GoogleAnalytics\Page($filename);
//error_log('DEBUG: 4 ');

//$page->setTitle($filename);
//$page->setReferrer($_SERVER['HTTP_REFERER']);
//if(!empty($_SERVER['HTTP_REFERER'])) $page->setReferrer($_SERVER['HTTP_REFERER']); 
//error_log('DEBUG: 5 ');

// Track page view
//$tracker->trackPageview($page, $session, $visitor);

//error_log('DEBUG: 6 ');

// Create the URL for the PDF
$protocol = ((!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off') || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
//error_log('DEBUG: 6 ');

$url  = $protocol.$_SERVER['HTTP_HOST'].$filename;

//error_log('DEBUG: 7 - URL: ' . $url);


//$file = fopen("/var/www/vhosts/demo.medicareinteractive.org/pdf/debug.log","a");
//fwrite($file,$url.PHP_EOL);
//fclose($file);


//GA4 Begin

    $measurement_id='G-J2L1LNEY8F';
    $api_secret='eTwEca5nT4CEW9EX3owPEQ';

    $user_id= mt_rand(1000000000,9999999999);
    //$user_id=sprintf('%10d', (string)$user_id);
    //error_log('DEBUG: Padded Rand User Id - ' . $user_id);
    $clientID = $user_id . '.' . (string)time();
    if ( isset($_COOKIE['_ga']) ) {
        $clientID = $_COOKIE['_ga'];
    }

    $data = array(
        'client_id'                    => $clientID,
        'events'                       => array(
            'name'                     => 'pdf_download',
            'params'                   => array(
                'engagement_time_msec' => '300',
                'session_id'           => (string)time(),
                'file_name'            => basename($filename)
            )
        )
    );

    $ch2 = curl_init();
    curl_setopt($ch2, CURLOPT_HEADER, 1);
    curl_setopt($ch2, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch2, CURLOPT_HTTPHEADER, array( 'Content-Type: application/json' ));
    curl_setopt($ch2, CURLOPT_URL, 'https://www.google-analytics.com/mp/collect?measurement_id=' . $measurement_id . '&api_secret=' . $api_secret);
    curl_setopt($ch2, CURLOPT_POST, 1);
    curl_setopt($ch2, CURLOPT_POSTFIELDS, json_encode($data));
//    error_log('DEBUG: Data - ' . json_encode($data));
    $content=curl_exec($ch2);
    curl_close($ch2);
//error_log('DEBUG: Content - ' . $content);

//GA4 End


//mail('mbednarz@medicarerights.org','URL',$url); 
// Fetch the PDF (cURL it)

$ch = curl_init($url);

//error_log('DEBUG: 8 ');

// This creates a user-agent string that we set .htaccess to ignore (preventing an endless loop)
curl_setopt($ch, CURLOPT_USERAGENT, "LunaMetrics123");
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
$content2 = curl_exec($ch);

//error_log('DEBUG: ' . $content2);

//error_log('DEBUG: 9 ');

curl_close($ch);


// For good measure
exit;
?>