def sendChannelJoinConfirm(self, result, userID, channelID, notify=True):
"""
Send a Channel Join Confirm PDU.
:param result: the result code (0 if the request was successful).
:type result: int
:param userID: the user ID.
:type result: int
:param channelID: the channel ID.
:type channelID: int
:param notify: True if the user should be notified (default).
:type notify: bool
"""
if notify:
if result == MCSResult.RT_SUCCESSFUL:
self.users[userID].channelJoinAccepted(self.mcs, channelID)
else:
self.users[userID].channelJoinRefused(result, channelID)
# t.125 specification document, section 11.22
channelIdField = channelID if result == MCSResult.RT_SUCCESSFUL else None
pdu = MCSChannelJoinConfirmPDU(result, userID, channelID,
channelIdField, b"")
self.mcs.send(pdu)
def parseChannelJoinConfirm(self, stream: BytesIO) -> MCSChannelJoinConfirmPDU:
"""
Parse a Channel Join Confirm PDU
:param stream: stream containing the data
"""
result = per.readEnumeration(stream)
data = stream.read()
if len(data) < 4 or len(data) == 5:
raise ParsingError("Invalid Channel Join Confirm PDU received")
elif len(data) >= 6:
channelID = Uint16BE.unpack(data[4 : 6])
payload = data[6 :]
else:
channelID = None
payload = b""
initiator = Uint16BE.unpack(data[0 : 2]) + MCSChannelID.USERCHANNEL_BASE
requested = Uint16BE.unpack(data[2 : 4])
return MCSChannelJoinConfirmPDU(result, initiator, requested, channelID, payload)