def _responseFromMessage(
self, message, rCode=dns.OK, answers=None, authority=None, additional=None
):
"""
Generate a L{Message} instance suitable for use as the response to
C{message}.
C{queries} will be copied from the request to the response.
C{rCode}, C{answers}, C{authority} and C{additional} will be assigned to
the response, if supplied.
The C{recAv} flag will be set on the response if the C{canRecurse} flag
on this L{DNSServerFactory} is set to L{True}.
The C{auth} flag will be set on the response if *any* of the supplied
C{answers} have their C{auth} flag set to L{True}.
The response will have the same C{maxSize} as the request.
Additionally, the response will have a C{timeReceived} attribute whose
value is that of the original request and the
@see: L{dns._responseFromMessage}
@param message: The request message
@type message: L{Message}
@param rCode: The response code which will be assigned to the response.
@type message: L{int}
@param answers: An optional list of answer records which will be
assigned to the response.
@type answers: L{list} of L{dns.RRHeader}
@param authority: An optional list of authority records which will be
assigned to the response.
@type authority: L{list} of L{dns.RRHeader}
@param additional: An optional list of additional records which will be
assigned to the response.
@type additional: L{list} of L{dns.RRHeader}
@return: A response L{Message} instance.
@rtype: L{Message}
"""
if answers is None:
answers = []
if authority is None:
authority = []
if additional is None:
additional = []
authoritativeAnswer = False
for x in answers:
if x.isAuthoritative():
authoritativeAnswer = True
break
response = dns._responseFromMessage(
responseConstructor=self._messageFactory,
message=message,
recAv=self.canRecurse,
rCode=rCode,
auth=authoritativeAnswer,
)
# XXX: Timereceived is a hack which probably shouldn't be tacked onto
# the message. Use getattr here so that we don't have to set the
# timereceived on every message in the tests. See #6957.
response.timeReceived = getattr(message, "timeReceived", None)
# XXX: This is another hack. dns.Message.decode sets maxSize=0 which
# means that responses are never truncated. I'll maintain that behaviour
# here until #6949 is resolved.
response.maxSize = message.maxSize
response.answers = answers
response.authority = authority
response.additional = additional
return response
def _responseFromMessage(self, message, rCode=dns.OK,
answers=None, authority=None, additional=None):
"""
Generate a L{Message} instance suitable for use as the response to
C{message}.
C{queries} will be copied from the request to the response.
C{rCode}, C{answers}, C{authority} and C{additional} will be assigned to
the response, if supplied.
The C{recAv} flag will be set on the response if the C{canRecurse} flag
on this L{DNSServerFactory} is set to L{True}.
The C{auth} flag will be set on the response if *any* of the supplied
C{answers} have their C{auth} flag set to L{True}.
The response will have the same C{maxSize} as the request.
Additionally, the response will have a C{timeReceived} attribute whose
value is that of the original request and the
@see: L{dns._responseFromMessage}
@param message: The request message
@type message: L{Message}
@param rCode: The response code which will be assigned to the response.
@type message: L{int}
@param answers: An optional list of answer records which will be
assigned to the response.
@type answers: L{list} of L{dns.RRHeader}
@param authority: An optional list of authority records which will be
assigned to the response.
@type authority: L{list} of L{dns.RRHeader}
@param additional: An optional list of additional records which will be
assigned to the response.
@type additional: L{list} of L{dns.RRHeader}
@return: A response L{Message} instance.
@rtype: L{Message}
"""
if answers is None:
answers = []
if authority is None:
authority = []
if additional is None:
additional = []
authoritativeAnswer = False
for x in answers:
if x.isAuthoritative():
authoritativeAnswer = True
break
response = dns._responseFromMessage(
responseConstructor=self._messageFactory,
message=message,
recAv=self.canRecurse,
rCode=rCode,
auth=authoritativeAnswer
)
# XXX: Timereceived is a hack which probably shouldn't be tacked onto
# the message. Use getattr here so that we don't have to set the
# timereceived on every message in the tests. See #6957.
response.timeReceived = getattr(message, 'timeReceived', None)
# XXX: This is another hack. dns.Message.decode sets maxSize=0 which
# means that responses are never truncated. I'll maintain that behaviour
# here until #6949 is resolved.
response.maxSize = message.maxSize
response.answers = answers
response.authority = authority
response.additional = additional
return response