Using ProcessWire session on external script

[androbey]

Hi everybody, 

unfortunately I am facing an issue, which I am both not able to resolve and don't know if here is the "right" place to ask for help. 

However, I am hoping that some of you can give me advice. 

To summarize what I want to do: 

From inside a template file I want to get page content from a file which is outside the site directory and using current ProcessWire session information (to "authenticate" the user, or rather just check if user is logged in or not). The external script is in a folder which lies on the same level as site and wire directories.

Inside my template file I have: 
 

<?php
function getContents($url){
  $c = curl_init($url);
  curl_setopt($c, CURLOPT_VERBOSE, 1);
  curl_setopt($c, CURLOPT_COOKIEJAR, '/tmp/cookies.txt');
  curl_setopt($c, CURLOPT_COOKIEFILE, '/tmp/cookies.txt');
  curl_setopt($c, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($c, CURLOPT_COOKIE, $_SERVER['HTTP_COOKIE']);
  $content = curl_exec($c);
  curl_close($c);
  return $content;
}

$url = $config->externalURL . 'data/getEntries.php';
$response = getContents($url);

From inside the external script ("getEntries.php") I "check" if user is logged in like: 

 

<?php namespace ProcessWire;
//bootstrapping ProcessWire
require('../../index.php');

function getAccessStatus(){
  $session = wire('session');
  //following does not work, because $session is empty, also $_SERVER['HTTP_COOKIE'] is null.
  if(wire('user')->isLoggedin() == true){
    $res['success'] = true;
	$res['status'] = 'OK';
  }else{
    $res['success'] = false;
	$res['status'] = 'No Auth';
	}
  return $res;
}

Am I missing something or is what I want to achieve not possible this way?

Hopefully someone can help. 

Thank you, 

Andreas