Validate client, code etc, return body + headers

def verify_request(self, uri, http_method='GET', body=None, headers=None,
                       scopes=None):
        """Validate client, code etc, return body + headers"""
        request = Request(uri, http_method, body, headers)
        request.token_type = self.find_token_type(request)
        request.scopes = scopes
        token_type_handler = self.tokens.get(request.token_type,
                                             self.default_token_type_handler)
        log.debug('Dispatching token_type %s request to %r.',
                  request.token_type, token_type_handler)
        return token_type_handler.validate_request(request), request