Comments (3)
bytespider
commented on June 23, 2024
1
Does this work for you? #57 (comment)
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boar24
commented on June 23, 2024
Wow, in deed! I sent
mosquitto_pub -h 192.168.188.30 -p 8883 --cafile ssl/ca.crt -t "/appliance/2211XXXXXXXXXXXXXXXXXXXXXXXX7317/subscribe" -m "{""header"":{""messageId"":""2960cfeef370338255f669525209abca"",""namespace"":""Appliance.Control.Bind"",""timestamp"":""1690744475"",""method"":""SETACK"",""sign"":""a246aa1f28f1a1d7b4a4cdc46ba6ad40"",""from"":""/cloud/hook/subscribe""},""payload"":{}}"
where I reused the messageId, timestamp and sign of an incoming message. And I had to convert the quotes to double quotes - as I am on Windows.
And this stopped the blinking. Hooray! Thanks a lot for nudging me onto the solution!
Now, when I press the plug's button, I can see in the broker and the attached subscriber that an Appliance.Control.ToggleX message comes in:
{"header":{"messageId":"690a3f909feba1ef9852c0403024783f","namespace":"Appliance.Control.ToggleX","method":"PUSH","payloadVersion":1,"from":"/appliance/2211XXXXXXXXXXXXXXXXXXXXXXXX7317/publish","uuid":"2211XXXXXXXXXXXXXXXXXXXXXXXX7317","timestamp":1690752350,"timestampMs":967,"sign":"9ee7114ec23b648e3ac2f391a58fd3ed"},"payload":{"togglex":[{"channel":0,"onoff":1,"lmTime":1690752350}]}}
Looks good!
Now, for the other way around, i.e. controlling the plug, I tried to send a similar message towards the plug:
mosquitto_pub -h 192.168.188.30 -p 8883 --cafile ssl/ca.crt -t "/appliance/2211XXXXXXXXXXXXXXXXXXXXXXXX7317/subscribe" -m "{""header"":{""messageId"":""690a3f909feba1ef9852c0403024783f"",""namespace"":""Appliance.Control.ToggleX"",""method"":""SET"",""payloadVersion"":1,""from"":""mosquitto_pub"",""uuid"":""2211XXXXXXXXXXXXXXXXXXXXXXXX7317"",""timestamp"":1690752350,""sign"":""9ee7114ec23b648e3ac2f391a58fd3ed""},""payload"":{""togglex"":[{""channel"":0,""onoff"":0,""lmTime"":1690752350}]}}"
It has
- SET instead of PUSH
- another value in the "from" field
The plug only reacts on the message
- many minutes after the messageId had been generated in the first place (I guess i.e. after the plug will have forgotten that the messageId had been used recently, clearly it can only have limited memory) and
- after unplugging and replugging the plug (apparently, i.e. erasing its memory). :-)
So far so good. I understand that to do it properly, I must use a random messageId, a correct timestamp, the correct key and a signing value equal to md5(messageId + key + timestamp). This should be doable without too much programming effort, analogue to the code fragment which is posted here for Symcon. However, I would assume that there is tool or library around to do this, just couldn't find something. Could you possibly point me into the right direction? I am looking for a simple plain command line tool, without an integration in HomeAssistant or the like.
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lechercheur123
commented on June 23, 2024
If you want to do this with python 3, here are some tips:
To generate random messageId:
messageId = str(random.randbytes(16).hex())
To calculate the timestamp:
timestamp = int(datetime.now(timezone.utc).timestamp())
To calculate the sign:
key = "customkey"
stringToHash = messageId+ key + str(timestamp)
hash = hashlib.md5(stringToHash.encode())
sign = hash.hexdigest()
As an example here is how I generate the JSON for my use cases (unfortunately I don't use ToggleX, so I added a short section at the end that should help you):
def generateMqttMessage(uuid, key, messageType, namespace, messageId=None, onoff=1):
data={}
data["header"]={}
data["header"]["from"]="/app/0-"+uuid+"/subscribe"
if(messageId == None):
data["header"]["messageId"]=str(random.randbytes(16).hex())
else:
data["header"]["messageId"]=messageId
data["header"]["method"]=messageType
data["header"]["namespace"]=namespace
data["header"]["payloadVersion"]=1
data["header"]["sign"]="0"
data["header"]["timestamp"]=int(datetime.now(timezone.utc).timestamp())
stringToHash = data["header"]["messageId"] + key + str(data["header"]["timestamp"])
hash=hashlib.md5(stringToHash.encode())
data["header"]["sign"]=hash.hexdigest()
data["payload"]={}
if(namespace == "Appliance.System.Clock"):
data["payload"]["clock"]={}
data["payload"]["clock"]["timestamp"]=data["header"]["timestamp"]
elif(namespace == "Appliance.System.Time"):
data["payload"]["time"]={}
data["payload"]["time"]["timestamp"]=data["header"]["timestamp"]
data["payload"]["time"]["timezone"] = "Europe/Paris"
data["payload"]["time"]["timeRule"] = []
tm = tz.gettz(data["payload"]["time"]["timezone"])
now=datetime.now(tm)
# Previous end or debut of DST
if(datetime.dst(now) != timedelta()):
dst1 = now + relativedelta(month=3, day=31, weekday=SU(-1), second=0, minute=0, hour=3, microsecond=0)
dst2 = now + relativedelta(month=10, day=31, weekday=SU(-1), second=59, minute=59, hour=2, microsecond=0)
dst3 = now + relativedelta(years=1, month=3, day=31, weekday=SU(-1), second=0, minute=0, hour=3, microsecond=0)
dst1on = 1
dst2on = 0
dst3on = 1
else:
dst2 = now + relativedelta(month=3, day=31, weekday=SU(-1), second=0, minute=0, hour=3)
if(now < dst2):
dst1 = now + relativedelta(years=-1, month=10, day=31, weekday=SU(-1), second=59, minute=59, hour=2)
dst3 = now + relativedelta(month=10, day=31, weekday=SU(-1), second=59, minute=59, hour=2)
else:
dst1 = now + relativedelta(month=10, day=31, weekday=SU(-1), second=59, minute=59, hour=2, microsecond=0)
dst2 = now + relativedelta(years=1, month=3, day=31, weekday=SU(-1), second=0, minute=0, hour=3, microsecond=0)
dst3 = now + relativedelta(years=1, month=10, day=31, weekday=SU(-1), second=59, minute=59, hour=2, microsecond=0)
dst1on = 0
dst2on = 1
dst3on = 0
data["payload"]["time"]["timeRule"].append([int(dst1.timestamp()) + dst2on, 3600 + (dst1on*3600), dst1on])
data["payload"]["time"]["timeRule"].append([int(dst2.timestamp()) + dst1on, 3600 + (dst2on*3600), dst2on])
data["payload"]["time"]["timeRule"].append([int(dst3.timestamp()) + dst2on, 3600 + (dst3on*3600), dst3on])
elif(namespace == "Appliance.Control.Electricity"):
data["payload"]["channel"] = 0
elif(namespace == "Appliance.Control.ConsumptionX"):
pass
elif(namespace == "Appliance.Control.Bind"):
pass
elif(namespace == "Appliance.System.Report"):
pass
# Just added right now for @Traveler4 but not tested
elif(namespace == "Appliance.Control.ToggleX"):
item = {}
item["channel"] = 0
item["onoff"] = onoff
item["lmTime"] = data["header"]["timestamp"]
data["payload"]["togglex"] = []
data["payload"]["togglex"].append(item)
else:
return None
return(json.dumps(data))
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