code: def get_file_from_url(job, any_url, encryption_key=None, per_file_encryption=True,
                        write_to_jobstore=True):
      
      work_dir = job.fileStore.getLocalTempDir()
  
      filename = '/'.join([work_dir, str(uuid.uuid4())])
      url = any_url
      parsed_url = urlparse(any_url)
      try:
          response = urllib2.urlopen(url)
      except urllib2.HTTPError:
          if parsed_url.netloc.startswith(('s3', 'S3')):
              job.fileStore.logToMaster("Detected https link is for an encrypted s3 file.")
              return get_file_from_s3(job, any_url, encryption_key=encryption_key,
                                      per_file_encryption=per_file_encryption,
                                      write_to_jobstore=write_to_jobstore)
          else:
              raise
      else:
          with open(filename, 'w') as f:
              f.write(response.read())
  
      if write_to_jobstore:
          filename = job.fileStore.writeGlobalFile(filename)
      return filename
docs: Download a supplied URL that points to a file on an http, https or ftp server.  If the file is
      found to be an https s3 link then the file is downloaded using `get_file_from_s3`. The file is
      downloaded and written to the jobstore if requested.
      Encryption arguments are for passing to `get_file_from_s3` if required.
  
      :param str any_url: URL for the file
      :param str encryption_key: Path to the master key
      :param bool per_file_encryption: If encrypted, was the file encrypted using the per-file method?
      :param bool write_to_jobstore: Should the file be written to the job store?
      :return: Path to the downloaded file or fsID (if write_to_jobstore was True)
      :rtype: str|toil.fileStore.FileID