Session Termination
API reference for diameter.message.commands.session_termination.
This module contains Session-Termination Request and Answer messages, implementing AVPs documented in rfc6733.
SessionTermination ¶
SessionTermination(
header: MessageHeader = None, avps: list[Avp] = None
)
Bases: DefinedMessage
A Session-Termination message.
This message class lists message attributes based on the current RFC6733 as python properties, acessible as instance attributes. AVPs not listed in the base protocol can be retrieved using the SessionTermination.find_avps search method.
Examples:
AVPs accessible either as instance attributes or by searching:
>>> msg = Message.from_bytes(b"...")
>>> msg.session_id
dra1.mvno.net;2323;546
>>> msg.find_avps((AVP_SESSION_ID, 0))
['dra1.mvno.net;2323;546']
When diameter message is decoded using
Message.from_bytes, it returns
either an instance of SessionTerminationRequest or
SessionTerminationAnswer automatically:
>>> msg = Message.from_bytes(b"...")
>>> assert msg.header.is_request is True
>>> assert isinstance(msg, SessionTerminationRequest)
When creating a new message, the SessionTerminationRequest or
SessionTerminationAnswer class should be instantiated directly, and
the values for AVPs set as class attributes:
>>> msg = SessionTerminationRequest()
>>> msg.session_id = "dra1.mvno.net;2323;546"
Other, custom AVPs can be appended to the message using the
SessionTermination.append_avp method, or
by overwriting the avp attribute entirely. Regardless of the custom AVPs
set, the mandatory values listed in RFC6733 must be set, however they can
be set as None, if they are not to be used.
Warning
Every AVP documented for the subclasses of this command can be accessed
as an instance attribute, even if the original network-received message
did not contain that specific AVP. Such AVPs will be returned with the
value None when accessed.
Every other AVP not mentioned here, and not present in a
network-received message will raise an AttributeError when being
accessed; their presence should be validated with hasattr before
accessing.
SessionTerminationAnswer ¶
SessionTerminationAnswer(
header: MessageHeader = None, avps: list[Avp] = None
)
Bases: SessionTermination
An Abort-Session-Answer message.
Note
The "Class" AVP can be accessed via state_class attribute, as
"class" is a reserved keyword.
SessionTerminationRequest ¶
SessionTerminationRequest(
header: MessageHeader = None, avps: list[Avp] = None
)