def parseHeader(header):
byte1 = upackHex(header[0])
t = unhexlify(hex((byte1 & 0xf0) >> 4)[2:].zfill(2))
dub = (byte1 & 0x08) >> 3
qos = (byte1 & 0x06) >> 1
retain = byte1 & 0x01
restLen, idx = decodeRestLen([upackHex(x) for x in header[1:]])
return t, dub, qos, retain, restLen, idx+1
def parseHeader(header):
byte1 = upackHex(header[0])
t = unhexlify(hex((byte1 & 0xf0) >> 4)[2:].zfill(2))
dub = (byte1 & 0x08) >> 3
qos = (byte1 & 0x06) >> 1
retain = byte1 & 0x01
restLen, idx = decodeRestLen([upackHex(x) for x in header[1:]])
return t, dub, qos, retain, restLen, idx + 1
def subscribe(data):
self.idx += 2
messageID = upackHex(data[:self.idx])
topics = []
allowedQoSs = []
while data[self.idx:]:
topic = self.getIncrement(data[self.idx:])
reqQoS = upackHex(data[self.idx])
topics.append(topic)
allowedQoSs.append(reqQoS)
self.idx += 1
return messageID, topics, allowedQoSs
def subscribe(data):
self.idx += 2
messageID = upackHex(data[:self.idx])
topics = []
allowedQoSs = []
while data[self.idx:]:
topic = self.getIncrement(data[self.idx:])
reqQoS = upackHex(data[self.idx])
topics.append(topic)
allowedQoSs.append(reqQoS)
self.idx += 1
return messageID, topics, allowedQoSs
def publish(data):
topic = self.getIncrement(data)
messageID = 1
if 1 <= qos <= 2:
messageID = upackHex(data[self.idx:self.idx + 2])
pubData = self.getIncrement(data[self.idx:]) if len(data[self.idx:]) else ""
return messageID, qos, topic, pubData
def unsubscribe(data):
self.idx += 2
messageID = upackHex(data[:self.idx])
topics = []
while data[self.idx:]:
topic = self.getIncrement(data[self.idx:])
topics.append(topic)
return messageID, topics
def connect(data):
proto = self.getIncrement(data)
protoVersion = upackHex(data[self.idx])
flags = upackHex(data[self.idx + 1])
keepAlive = upackHex(data[self.idx + 2:self.idx + 4])
self.idx += 4
cliId = self.getIncrement(data[self.idx:])
will = {"QoS": (flags & 0x18) >> 3, "retain": (flags & 0x20) >> 5, "topic": "", "message": ""}
if flags & 0x04:
will["topic"] = self.getIncrement(data[self.idx:])
will["message"] = self.getIncrement(data[self.idx:])
name = self.getIncrement(data[self.idx:]) if flags & 0x80 else ""
passwd = self.getIncrement(data[self.idx:]) if flags & 0x40 else ""
clean = flags & 0x02
return cliId, name, passwd, will, keepAlive, clean
def unsubscribe(data):
self.idx += 2
messageID = upackHex(data[:self.idx])
topics = []
while data[self.idx:]:
topic = self.getIncrement(data[self.idx:])
topics.append(topic)
return messageID, topics
def publish(data):
topic = self.getIncrement(data)
messageID = 1
if 1 <= qos <= 2:
messageID = upackHex(data[self.idx:self.idx + 2])
pubData = self.getIncrement(data[self.idx:]) if len(
data[self.idx:]) else ""
return messageID, qos, topic, pubData
def connect(data):
proto = self.getIncrement(data)
protoVersion = upackHex(data[self.idx])
flags = upackHex(data[self.idx + 1])
keepAlive = upackHex(data[self.idx + 2:self.idx + 4])
self.idx += 4
cliId = self.getIncrement(data[self.idx:])
will = {
"QoS": (flags & 0x18) >> 3,
"retain": (flags & 0x20) >> 5,
"topic": "",
"message": ""
}
if flags & 0x04:
will["topic"] = self.getIncrement(data[self.idx:])
will["message"] = self.getIncrement(data[self.idx:])
name = self.getIncrement(data[self.idx:]) if flags & 0x80 else ""
passwd = self.getIncrement(data[self.idx:]) if flags & 0x40 else ""
clean = flags & 0x02
return cliId, name, passwd, will, keepAlive, clean
def unsuback(data):
messageID = upackHex(data[:2])
return messageID
def suback(data):
messageID = upackHex(data[:2])
allowedQoSs = []
for q in data[2:]:
allowedQoSs.append(upackHex(q))
return messageID, allowedQoSs
def pubcomp(data):
messageID = upackHex(data[:2])
return messageID
def pubrel(data):
messageID = upackHex(data[:2])
return messageID
def unsuback(data):
messageID = upackHex(data[:2])
return messageID
def suback(data):
messageID = upackHex(data[:2])
allowedQoSs = []
for q in data[2:]:
allowedQoSs.append(upackHex(q))
return messageID, allowedQoSs
def pubcomp(data):
messageID = upackHex(data[:2])
return messageID
def pubrel(data):
messageID = upackHex(data[:2])
return messageID