/**
  * @return $this
  */
 protected function processList()
 {
     $lines = $this->getFs()->getLines();
     $lineNumber = 1;
     foreach ($lines as $line) {
         // check web archive limitations:
         // if website was not blocked by robots.txt rules
         // or any other WBA Exception
         if ($lineNumber == 1 && strpos($line, 'Exception') !== false) {
             $msgArray = explode(':', $line);
             $error = sprintf('Web Archive Error: %s', array_pop($msgArray));
             throw new \RuntimeException($error);
         }
         $linkInfo = $this->getApi()->prepareDownloadInfo($line);
         $content = $this->getApi()->downloadContent($linkInfo['link']);
         Writer::send(sprintf('%s', $linkInfo['link']));
         if ($content === false) {
             Writer::send(sprintf('Can\'t download resource %s', $linkInfo['link']), 'warning');
         }
         $this->getFs()->saveContent($linkInfo['path'], $content);
         $lineNumber++;
     }
     return $this;
 }