Write a simple response back to the client.

def simple_response(self, status, msg=""):
        """Write a simple response back to the client."""
        status = str(status)
        buf = [self.server.protocol + " " +
               status + CRLF,
               "Content-Length: %s\r\n" % len(msg),
               "Content-Type: text/plain\r\n"]
        
        if status[:3] in ("413", "414"):
            # Request Entity Too Large / Request-URI Too Long
            self.close_connection = True
            if self.response_protocol == 'HTTP/1.1':
                # This will not be true for 414, since read_request_line
                # usually raises 414 before reading the whole line, and we
                # therefore cannot know the proper response_protocol.
                buf.append("Connection: close\r\n")
            else:
                # HTTP/1.0 had no 413/414 status nor Connection header.
                # Emit 400 instead and trust the message body is enough.
                status = "400 Bad Request"
        
        buf.append(CRLF)
        if msg:
            if isinstance(msg, unicode):
                msg = msg.encode("ISO-8859-1")
            buf.append(msg)
        
        try:
            self.conn.wfile.sendall("".join(buf))
        except socket.error, x:
            if x.args[0] not in socket_errors_to_ignore:
                raise