# buffer += 'Content-Length: %s\r\n' % file_size
            fd.seek(0)
            buffer += '\r\n' + fd.read() + '\r\n'
        buffer += '--%s--\r\n\r\n' % boundary
        return boundary, buffer
    multipart_encode = Callable(multipart_encode)

    https_request = http_request

def main():
    import tempfile, sys

    validatorURL = "http://validator.w3.org/check"
    opener = urllib2.build_opener(MultipartPostHandler)

    def validateFile(url):
        temp = tempfile.mkstemp(suffix=".html")
        os.write(temp[0], opener.open(url).read())
        params = { "ss" : "0",            # show source
                   "doctype" : "Inline",
                   "uploaded_file" : open(temp[1], "rb") }
        print opener.open(validatorURL, params).read()
        os.remove(temp[1])

    if len(sys.argv[1:]) > 0:
        for arg in sys.argv[1:]:
            validateFile(arg)
    else:
        validateFile("http://www.google.com")

if __name__=="__main__":
    main()