Serves a user script, slowly

serve-user-script-slow.py

#!/usr/bin/env python

import time

from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer


PORT = 8000
USER_JS = """// ==UserScript==
// @name        Red Border
// @description A super simple user script with an unobtrusive way of being clear that it's running.
// @namespace   test
// @include     http*
// @version     1
// @grant       none
// ==/UserScript==

document.body.style.border = '3px dashed red';

"""
for i in range(50):
  USER_JS += '// %d ...\n' % i


class S(BaseHTTPRequestHandler):
  def do_GET(self):
    self.send_response(200)
    
    if '.user.js' in self.path:
      self.send_header('Content-Type', 'text/plain')
      self.send_header('Content-Length', len(USER_JS))
      self.end_headers()
      for line in USER_JS.splitlines():
        self.wfile.write(line + '\n')
        time.sleep(0.25)
    else:
      self.send_header('Content-Type', 'text/html')
      self.end_headers()
      self.wfile.write(
          'I can serve <a href="anything.user.js">a user script</a>, slowly.')


httpd = HTTPServer(('', PORT), S)
httpd.serve_forever()