Default md_browser.py to listen just on localhost

tools/md_browser/md_browser.py

 #!/usr/bin/env python
 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Simple Markdown browser for a Git checkout."""
 from __future__ import print_function
 
 import SimpleHTTPServer
 import SocketServer
@@ skipping 18 matching lines @@
 def main(argv):
   parser = argparse.ArgumentParser(prog='md_browser')
   parser.add_argument('-p', '--port', type=int, default=8080,
                       help='port to run on (default = %(default)s)')
   parser.add_argument('-d', '--directory', type=str, default=SRC_DIR)
   parser.add_argument('file', nargs='?',
                       help='open file in browser')
   args = parser.parse_args(argv)
 
   top_level = os.path.realpath(args.directory)
+  server_address = ('localhost', args.port)
+  s = Server(server_address, top_level)
 
-  s = Server(args.port, top_level)
-
-  print('Listening on http://localhost:%s/' % args.port)
+  print('Listening on http://%s:%s/' % server_address)
   thread = None
   if args.file:
     path = os.path.realpath(args.file)
     if not path.startswith(top_level):
       print('%s is not under %s' % (args.file, args.directory))
       return 1
     rpath = os.path.relpath(path, top_level)
     url = 'http://localhost:%d/%s' % (args.port, rpath)
     print('Opening %s' % url)
     thread = threading.Thread(target=_open_url, args=(url,))
@@ skipping 46 matching lines @@
   # underscores, just like other non-ASCII characters.
 
   value = value.encode('ascii', 'replace')  # Non-ASCII turns into '?'.
   value = re.sub(r'[^- a-zA-Z0-9]', '_', value)  # Non-alphanumerics to '_'.
   value = value.replace(u' ', u'-')
   value = re.sub(r'([-_])[-_]+', r'\1', value)  # Fold hyphens and underscores.
   return value
 
 
 class Server(SocketServer.TCPServer):
-  def __init__(self, port, top_level):
-    SocketServer.TCPServer.__init__(self, ('0.0.0.0', port), Handler)
-    self.port = port
+  def __init__(self, server_address, top_level):
+    SocketServer.TCPServer.__init__(self, server_address, Handler)
     self.top_level = top_level
-    self.retcode = None
 
   def server_bind(self):
     self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
     self.socket.bind(self.server_address)
 
 
 class Handler(SimpleHTTPServer.SimpleHTTPRequestHandler):
   def do_GET(self):
     path = self.path
 
@@ skipping 216 matching lines @@
       contents.text = 'Contents'
       contents.tail = '\n'
       toc_aux = ElementTree.SubElement(toc_node, 'div', {'class': 'toc-aux'})
       toc_aux.text = '\n'
       toc_aux.append(ul_with_the_desired_toc_entries)
       toc_aux.tail = '\n'
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))