Check whether user is logged in another domain

Question

I am using a remote login feature in my website for logging into an onapp server from my site.. This will actually fetch the form using CURL and submitting it with user name and password. It is working fine. Now my site has got different services for a single user and so there is multiple accounts in the onapp server. So I need a method to check if there is a session is existing in the onapp server(if a user is already logged in).If a user is already logged in onapp, will not allow another login and will show there is a user already logged in. So it is needed to logout the user and login using the new credentials. Any idea how this can be done. ?

Answer 1

This one I think it could help you

// REST Server URL
$request_url = 'http://localhost:3000/rest_api/user/login';

// User data 
$user_data = array('username' => 'jimthunderbird',    
  'password' => '123456', );

// cURL 
$curl = curl_init(); 
curl_setopt($curl, CURLOPT_URL, $request_url); 
curl_setopt($curl, CURLOPT_POST, 1); 
// Do a regular HTTP POST 
curl_setopt($curl, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
curl_setopt($curl, CURLOPT_POSTFIELDS, json_encode($user_data)); // Set POST data
curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE);

$response = curl_exec($curl);

print $response;

$http_code = curl_getinfo($curl, CURLINFO_HTTP_CODE); 
// Check if login was successful 
if ($http_code == 200) {   
     // Convert json response as array   
     $logged_user = json_decode($response); 
} else { 
    // Get error msg   
    $http_message = curl_error($curl);  
    die($http_message); 
}

print_r($logged_user);