appengine_rpc.py 文件源码

def _GetOpener(self):
    """Returns an OpenerDirector that supports cookies and ignores redirects.

    Returns:
      A urllib2.OpenerDirector object.
    """
    opener = urllib2.OpenerDirector()
    opener.add_handler(fancy_urllib.FancyProxyHandler())
    opener.add_handler(urllib2.UnknownHandler())
    opener.add_handler(urllib2.HTTPHandler())
    opener.add_handler(urllib2.HTTPDefaultErrorHandler())
    opener.add_handler(fancy_urllib.FancyHTTPSHandler())
    opener.add_handler(urllib2.HTTPErrorProcessor())
    opener.add_handler(ContentEncodingHandler())

    if self.save_cookies:
      self.cookie_jar.filename = os.path.expanduser(
          HttpRpcServer.DEFAULT_COOKIE_FILE_PATH)

      if os.path.exists(self.cookie_jar.filename):
        try:
          self.cookie_jar.load()
          self.authenticated = True
          logger.debug("Loaded authentication cookies from %s",
                       self.cookie_jar.filename)
        except (OSError, IOError, cookielib.LoadError), e:

          logger.debug("Could not load authentication cookies; %s: %s",
                       e.__class__.__name__, e)
          self.cookie_jar.filename = None
      else:


        try:
          fd = os.open(self.cookie_jar.filename, os.O_CREAT, 0600)
          os.close(fd)
        except (OSError, IOError), e:

          logger.debug("Could not create authentication cookies file; %s: %s",
                       e.__class__.__name__, e)
          self.cookie_jar.filename = None

    opener.add_handler(urllib2.HTTPCookieProcessor(self.cookie_jar))
    return opener