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# SPDX-FileCopyrightText: 2018-2024 Greenbone AG
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
"""
Module for transforming responses
"""
from lxml import etree
from gvm.protocols.core import Response
from .errors import GvmError, GvmResponseError, GvmServerError
from .xml import Element, create_parser
class EtreeTransform:
"""
Transform a response into a lxml.etree root element
"""
def __init__(self):
self._parser = create_parser()
def _convert_response(self, response: Response) -> Element:
return etree.XML(bytes(response), parser=self._parser)
def __call__(self, response: Response) -> Element:
return self._convert_response(response)
def check_command_status(root: Element):
status = root.get("status")
if status is None:
raise GvmServerError("No status in response.", str(root))
if status[0] == "4":
raise GvmResponseError(status=status, message=root.get("status_text"))
elif status[0] == "5":
raise GvmServerError(status=status, message=root.get("status_text"))
elif status[0] != "2":
raise GvmError(f"Error in response. {root.get('status_text')}", root)
class CheckCommandTransform(EtreeTransform):
"""
Check the response code of a response and raise GmpError if
response was an error response
"""
def __call__(self, response: Response) -> Response: # type: ignore[override]
root = self._convert_response(response)
check_command_status(root)
return response
class EtreeCheckCommandTransform(EtreeTransform):
"""
Transform a response into a lxml.etree root element and raise GmpError if
response was an error response
"""
def __call__(self, response: Response) -> Element:
root = self._convert_response(response)
check_command_status(root)
return root
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