How to use the conf.userinfo function in conf

$('#html_upload_form')
          .attr('action', '/addhtml/' + Files.currentEnsemble)
          .submit()[0]
          .reset();
    } else if (getUploadType() === 'youtube') {
      console.log('YouTube Upload');
      $('#youtube_upload_form')
          .attr('action', '/addyoutube/' + Files.currentEnsemble)
          .submit()[0]
          .reset();
    } else {
      console.log('File Upload');

      // we need a way to pass the id_ensemble and id_folder: we do it in the URL
      var folder_fragment = (Files.currentFolder === null) ? '' : '&id_folder=' + Files.currentFolder;
      var newauth = ('ckey' in Conf.userinfo) ? '&ckey=' + Conf.userinfo.ckey : '';
      $('#file_upload_form')
         .attr('action', Conf.servers.upload + '/pdf3/upload?id_ensemble=' + Files.currentEnsemble + '&id_source=' + payload.id_source + folder_fragment + newauth)
         .submit()[0]
         .reset();

      //$.I("File added to remote repository");
    }

    $('#add_file_dialog').dialog('destroy');

    //SACHA TODO: Fix this when we setup connectionIds
    window.setTimeout(function () {
      //NOTE (important !)
      $.I('NB is processing your file... You should receive an email once your file is available on NB.');
      var payload_objects = { types:['files'],  id: payload.id_source };
      if ('id_ensemble' in Pers.params) {

if (x.status.errno) {
        //just display that there was an error for now
        if (errback !== undefined) {
          errback(x.status, x.payload);
        }

        $.L(x.status.msg);
        return;
      }

      //     console.log("cb w/ x=", x);
      callback(x.payload);
    };

    var auth_str = Conf.userinfo.guest ? 'guest=1' : 'ckey=' + Conf.userinfo.ckey;
    $.post(Conf.servers.rpc + '/pdf4/rpc?' + auth_str, { cid: Pers.connection_id, f: fctname, a: JSON.stringify(dict) }, cb, 'json');
  };

Pers.set_nav_user = function() {
    var userinfo = Conf.userinfo = JSON.parse(unescape(Auth.get_cookie('userinfo'))) || { guest: true };
    var screenname = "Guest";
    var viewportGuestClass = "nb--guest";
    var mainContentClass2 = "content_main--guest";

    if (!Conf.userinfo.guest) {
      screenname = userinfo.firstname === null ? $.E(userinfo.email) : $.E(userinfo.firstname) + ' ' + $.E(userinfo.lastname);
      viewportGuestClass = "";
      mainContentClass2 = "";
    }

    // Remove the defaults
    $(".nb-viewport").removeClass("nb--guest");
    $("#content_main").removeClass("main-content-class2");

    // Add the appropriate name and classes
    $("#login-name").text(screenname);
    $(".nb-viewport").addClass(viewportGuestClass);
    $("#content_main").addClass(mainContentClass2);
  };

Pers.store.add('us', payload.settings.us);
          // Reload the page to update Conf.userinfo if the user's name gets changed and also to
          // ensure the name displayed at the top of the page is correct.
          window.location.reload();
        });
      }
    };

    $('#cancel_button').click(function () {
      f_cleanup(false);
      window.location.href = "/";
    });

    $('#save_button').click(function () {f_cleanup(true);});

    var u = Conf.userinfo;
    $('#your_firstname').text(u.firstname);
    $('#your_lastname').text(u.lastname);
    $('#your_email').text(u.email);
  };

Pers.set_nav_user = function() {
    var userinfo = Conf.userinfo = JSON.parse(unescape(Auth.get_cookie('userinfo'))) || { guest: true };
    var screenname = "Guest";
    var viewportGuestClass = "nb--guest";
    var mainContentClass2 = "content_main--guest";

    if (!Conf.userinfo.guest) {
      screenname = userinfo.firstname === null ? $.E(userinfo.email) : $.E(userinfo.firstname) + ' ' + $.E(userinfo.lastname);
      viewportGuestClass = "";
      mainContentClass2 = "";
    }

    // Remove the defaults
    $(".nb-viewport").removeClass("nb--guest");
    $("#content_main").removeClass("main-content-class2");

    // Add the appropriate name and classes
    $("#login-name").text(screenname);

Ok: function () {
          var form = $('#file_update_form')[0];
          var newauth = ('ckey' in Conf.userinfo) ? '&ckey=' + Conf.userinfo.ckey : '';
          form.setAttribute('action', Conf.servers.upload + '/pdf3/upload/update?id_source=' + id + newauth);
          form.submit();
          $.I('Updating in progress...');
          $(this).dialog('destroy');
        },
      },

window.addEventListener('message', function (e) {
      console.log('reply to ', e.origin);
      if (e.data === 'confkey') {
        e.source.postMessage(Conf.userinfo.ckey, e.origin);
      }
    }, false);

successful_login: function (evt) {
        Auth.set_cookie('ckey', evt.value.ckey);
        Auth.set_cookie('userinfo', evt.value.userinfo);
        Conf.userinfo = JSON.parse(unescape(evt.value.userinfo));
        $.I('Welcome ' + Conf.userinfo.firstname + " " + Conf.userinfo.lastname);
        f_prepare_sidebar();
        Pers.set_nav_user();
      },
    }, 'globalPersObject');

get_userinfo: function (P, cb) {
      return Conf.userinfo;
    },