URL_Validator.js

function serverUrlValidator(input){
  var url = input.toLowerCase();
  var arr = url.split('://');
  var protocol = arr[0];

  if(protocol === 'https' || protocol === 'http'){
    //Do nothing
  }else if(protocol === url){
    url = 'https://' + url;
  }

  var parser = document.createElement('a');
  parser.href = url;
  var protocol = parser.protocol;
  var host = parser.host;
  var domain = parser.domainname;
  var port = parser.port;
  var pathname = parser.pathname;
  var serverUrl = protocol + '//' + host + pathname;
  console.log('Built protocol : '+protocol);
  console.log('Built domain : '+domain);
  console.log('Built host : '+host);
  console.log('Built port : '+port);
  console.log('Built pathname : '+pathname);



  if(host){
    if(protocol === 'https:'){
      console.log('AWESOME - URL --> '+serverUrl);
    }else if(protocol === 'http:'){
      console.log('WARNING : HTTP - URL --> '+serverUrl);
    }else{
      console.log('ERROR : INVALID protocol');
    }
  }else{
    console.log('ERROR : INVALID URL');
  }   
}

serverUrlValidator('sample.com:9000/lkjsdhf.txt')