mirror of
https://github.com/PiBrewing/craftbeerpi4.git
synced 2024-12-29 17:01:44 +01:00
191 lines
No EOL
8.4 KiB
Python
191 lines
No EOL
8.4 KiB
Python
"""
|
|
*******************************************************************
|
|
Copyright (c) 2017, 2019 IBM Corp.
|
|
|
|
All rights reserved. This program and the accompanying materials
|
|
are made available under the terms of the Eclipse Public License v1.0
|
|
and Eclipse Distribution License v1.0 which accompany this distribution.
|
|
|
|
The Eclipse Public License is available at
|
|
http://www.eclipse.org/legal/epl-v10.html
|
|
and the Eclipse Distribution License is available at
|
|
http://www.eclipse.org/org/documents/edl-v10.php.
|
|
|
|
Contributors:
|
|
Ian Craggs - initial implementation and/or documentation
|
|
*******************************************************************
|
|
"""
|
|
|
|
import sys
|
|
from .packettypes import PacketTypes
|
|
|
|
|
|
class ReasonCodes:
|
|
"""MQTT version 5.0 reason codes class.
|
|
|
|
See ReasonCodes.names for a list of possible numeric values along with their
|
|
names and the packets to which they apply.
|
|
|
|
"""
|
|
|
|
def __init__(self, packetType, aName="Success", identifier=-1):
|
|
"""
|
|
packetType: the type of the packet, such as PacketTypes.CONNECT that
|
|
this reason code will be used with. Some reason codes have different
|
|
names for the same identifier when used a different packet type.
|
|
|
|
aName: the String name of the reason code to be created. Ignored
|
|
if the identifier is set.
|
|
|
|
identifier: an integer value of the reason code to be created.
|
|
|
|
"""
|
|
|
|
self.packetType = packetType
|
|
self.names = {
|
|
0: {"Success": [PacketTypes.CONNACK, PacketTypes.PUBACK,
|
|
PacketTypes.PUBREC, PacketTypes.PUBREL, PacketTypes.PUBCOMP,
|
|
PacketTypes.UNSUBACK, PacketTypes.AUTH],
|
|
"Normal disconnection": [PacketTypes.DISCONNECT],
|
|
"Granted QoS 0": [PacketTypes.SUBACK]},
|
|
1: {"Granted QoS 1": [PacketTypes.SUBACK]},
|
|
2: {"Granted QoS 2": [PacketTypes.SUBACK]},
|
|
4: {"Disconnect with will message": [PacketTypes.DISCONNECT]},
|
|
16: {"No matching subscribers":
|
|
[PacketTypes.PUBACK, PacketTypes.PUBREC]},
|
|
17: {"No subscription found": [PacketTypes.UNSUBACK]},
|
|
24: {"Continue authentication": [PacketTypes.AUTH]},
|
|
25: {"Re-authenticate": [PacketTypes.AUTH]},
|
|
128: {"Unspecified error": [PacketTypes.CONNACK, PacketTypes.PUBACK,
|
|
PacketTypes.PUBREC, PacketTypes.SUBACK, PacketTypes.UNSUBACK,
|
|
PacketTypes.DISCONNECT], },
|
|
129: {"Malformed packet":
|
|
[PacketTypes.CONNACK, PacketTypes.DISCONNECT]},
|
|
130: {"Protocol error":
|
|
[PacketTypes.CONNACK, PacketTypes.DISCONNECT]},
|
|
131: {"Implementation specific error": [PacketTypes.CONNACK,
|
|
PacketTypes.PUBACK, PacketTypes.PUBREC, PacketTypes.SUBACK,
|
|
PacketTypes.UNSUBACK, PacketTypes.DISCONNECT], },
|
|
132: {"Unsupported protocol version": [PacketTypes.CONNACK]},
|
|
133: {"Client identifier not valid": [PacketTypes.CONNACK]},
|
|
134: {"Bad user name or password": [PacketTypes.CONNACK]},
|
|
135: {"Not authorized": [PacketTypes.CONNACK, PacketTypes.PUBACK,
|
|
PacketTypes.PUBREC, PacketTypes.SUBACK, PacketTypes.UNSUBACK,
|
|
PacketTypes.DISCONNECT], },
|
|
136: {"Server unavailable": [PacketTypes.CONNACK]},
|
|
137: {"Server busy": [PacketTypes.CONNACK, PacketTypes.DISCONNECT]},
|
|
138: {"Banned": [PacketTypes.CONNACK]},
|
|
139: {"Server shutting down": [PacketTypes.DISCONNECT]},
|
|
140: {"Bad authentication method":
|
|
[PacketTypes.CONNACK, PacketTypes.DISCONNECT]},
|
|
141: {"Keep alive timeout": [PacketTypes.DISCONNECT]},
|
|
142: {"Session taken over": [PacketTypes.DISCONNECT]},
|
|
143: {"Topic filter invalid":
|
|
[PacketTypes.SUBACK, PacketTypes.UNSUBACK, PacketTypes.DISCONNECT]},
|
|
144: {"Topic name invalid":
|
|
[PacketTypes.CONNACK, PacketTypes.PUBACK,
|
|
PacketTypes.PUBREC, PacketTypes.DISCONNECT]},
|
|
145: {"Packet identifier in use":
|
|
[PacketTypes.PUBACK, PacketTypes.PUBREC,
|
|
PacketTypes.SUBACK, PacketTypes.UNSUBACK]},
|
|
146: {"Packet identifier not found":
|
|
[PacketTypes.PUBREL, PacketTypes.PUBCOMP]},
|
|
147: {"Receive maximum exceeded": [PacketTypes.DISCONNECT]},
|
|
148: {"Topic alias invalid": [PacketTypes.DISCONNECT]},
|
|
149: {"Packet too large": [PacketTypes.CONNACK, PacketTypes.DISCONNECT]},
|
|
150: {"Message rate too high": [PacketTypes.DISCONNECT]},
|
|
151: {"Quota exceeded": [PacketTypes.CONNACK, PacketTypes.PUBACK,
|
|
PacketTypes.PUBREC, PacketTypes.SUBACK, PacketTypes.DISCONNECT], },
|
|
152: {"Administrative action": [PacketTypes.DISCONNECT]},
|
|
153: {"Payload format invalid":
|
|
[PacketTypes.PUBACK, PacketTypes.PUBREC, PacketTypes.DISCONNECT]},
|
|
154: {"Retain not supported":
|
|
[PacketTypes.CONNACK, PacketTypes.DISCONNECT]},
|
|
155: {"QoS not supported":
|
|
[PacketTypes.CONNACK, PacketTypes.DISCONNECT]},
|
|
156: {"Use another server":
|
|
[PacketTypes.CONNACK, PacketTypes.DISCONNECT]},
|
|
157: {"Server moved":
|
|
[PacketTypes.CONNACK, PacketTypes.DISCONNECT]},
|
|
158: {"Shared subscription not supported":
|
|
[PacketTypes.SUBACK, PacketTypes.DISCONNECT]},
|
|
159: {"Connection rate exceeded":
|
|
[PacketTypes.CONNACK, PacketTypes.DISCONNECT]},
|
|
160: {"Maximum connect time":
|
|
[PacketTypes.DISCONNECT]},
|
|
161: {"Subscription identifiers not supported":
|
|
[PacketTypes.SUBACK, PacketTypes.DISCONNECT]},
|
|
162: {"Wildcard subscription not supported":
|
|
[PacketTypes.SUBACK, PacketTypes.DISCONNECT]},
|
|
}
|
|
if identifier == -1:
|
|
if packetType == PacketTypes.DISCONNECT and aName == "Success":
|
|
aName = "Normal disconnection"
|
|
self.set(aName)
|
|
else:
|
|
self.value = identifier
|
|
self.getName() # check it's good
|
|
|
|
def __getName__(self, packetType, identifier):
|
|
"""
|
|
Get the reason code string name for a specific identifier.
|
|
The name can vary by packet type for the same identifier, which
|
|
is why the packet type is also required.
|
|
|
|
Used when displaying the reason code.
|
|
"""
|
|
assert identifier in self.names.keys(), identifier
|
|
names = self.names[identifier]
|
|
namelist = [name for name in names.keys() if packetType in names[name]]
|
|
assert len(namelist) == 1
|
|
return namelist[0]
|
|
|
|
def getId(self, name):
|
|
"""
|
|
Get the numeric id corresponding to a reason code name.
|
|
|
|
Used when setting the reason code for a packetType
|
|
check that only valid codes for the packet are set.
|
|
"""
|
|
identifier = None
|
|
for code in self.names.keys():
|
|
if name in self.names[code].keys():
|
|
if self.packetType in self.names[code][name]:
|
|
identifier = code
|
|
break
|
|
assert identifier != None, name
|
|
return identifier
|
|
|
|
def set(self, name):
|
|
self.value = self.getId(name)
|
|
|
|
def unpack(self, buffer):
|
|
c = buffer[0]
|
|
if sys.version_info[0] < 3:
|
|
c = ord(c)
|
|
name = self.__getName__(self.packetType, c)
|
|
self.value = self.getId(name)
|
|
return 1
|
|
|
|
def getName(self):
|
|
"""Returns the reason code name corresponding to the numeric value which is set.
|
|
"""
|
|
return self.__getName__(self.packetType, self.value)
|
|
|
|
def __eq__(self, other):
|
|
if isinstance(other, int):
|
|
return self.value == other
|
|
if isinstance(other, str):
|
|
return self.value == str(self)
|
|
if isinstance(other, ReasonCodes):
|
|
return self.value == other.value
|
|
return False
|
|
|
|
def __str__(self):
|
|
return self.getName()
|
|
|
|
def json(self):
|
|
return self.getName()
|
|
|
|
def pack(self):
|
|
return bytearray([self.value]) |