[Ajax/jQuery] Handle sessions in client side with ajax requests

session_handling

/*
 Handles session expired in AJAX requests
*/

$(document).ajaxError(function(e, jqXHR, ajaxSettings, thrownError) {
    // if 403 - check if user still has active session - if not redirect to login page
    if(jqXHR.status == '403' || jqXHR.status == '500'){
        $.get('/users/check_session',function(data){
            // inactive session so redirect to login page
            if(data != '1'){
                window.location = '/users/login/expired';
            }
            // likely does not have perimissions
            else if(jqXHR.status == '403'){
                notification('error','Access Denied (Permissions)',ajaxSettings.url);
            }
            else{
                notification('error','Internal Error Encountered',ajaxSettings.url);
            }
        })
    }
    else{
        notification('error','Error Encountered',thrownError+' (HTTP CODE: '+jqXHR.status+')
'+ajaxSettings.url);
        console.log(e,'event');
        console.log(jqXHR,'xhr response');
        console.log(ajaxSettings,'$.ajax settings');
    }
});




// Dummy test in onSuccess
$(document).ajaxSuccess(function(evt, request, settings){
   if (request.responseText.indexOf('UserLoginForm') != -1)
      location.href="/login";
});