'<request base64="true"><![CDATA[R0VUI...4zDQoNCg==]]></request>
or
<request base64="false"><![CDATA[GET /w3af/ HTTP/1.1
Host: moth
]]></request>'

def start(self, tag, attrib):

    if (tag == 'request'):
        self.parsing_request = True
        if (not ('base64' in attrib)):
            return
        use_base64 = attrib['base64']
        if (use_base64.lower() == 'true'):
            self.current_is_base64 = True
        else:
            self.current_is_base64 = False
