Develop Reference

Chat Bot don't polling

I,m just study codding, and try make chat-bot. But it's don' work, please help me.
I'ts my code:
import time
import logging
from aiogram import Bot, Dispatcher, types, executor
logging.basicConfig(level=logging.INFO)
TOKEN = '6292675773:AAGBBeUms_4NILy6h26TH4rGLyml7h3bHWg'
MSG = 'Hello, are you coddind today?'
bot = Bot(token=TOKEN)
dp = Dispatcher(bot=bot)
#dp.message_handler(Commands=['start'])
async def start_handler(message: types.Message):
user_id = message.from_user.id
user_name = message.from_user.first_name
user_full_name = message.from_user.first_name
logging.info(f'{user_id} {user_full_name} {time.asctime()}')
await message.reply(f"Hello, {user_full_name}!")
for i in range(10):
time.sleep(2)
await bot.send_message(user_id, MSG.format(user_name))
if __name__ == '__main__':
executor.start_polling(dp)
and it's Error:
(venv) PS C:\Users\roman\PycharmProjects\pythonProject> python main.py
Traceback (most recent call last):
File "C:\Users\roman\PycharmProjects\pythonProject\main.py", line 14, in
#dp.message_handler(Commands = ['start'])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\roman\PycharmProjects\pythonProject\venv\Lib\site-packages\aiogram\dispatcher\dispatcher.py", line 560, in decorator
self.register_message_handler(callback, *custom_filters,
File "C:\Users\roman\PycharmProjects\pythonProject\venv\Lib\site-packages\aiogram\dispatcher\dispatcher.py", line 479, in register_message_handler
filters_set = self.filters_factory.resolve(self.message_handlers,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\roman\PycharmProjects\pythonProject\venv\Lib\site-packages\aiogram\dispatcher\filters\factory.py", line 51, in resolve
filters_set = list(
^^^^^
File "C:\Users\roman\PycharmProjects\pythonProject\venv\Lib\site-packages\aiogram\dispatcher\filters\factory.py", line 77, in _resolve_registered
raise NameError("Invalid filter name(s): '" + "', ".join(full_config.keys()) + "'")
NameError: Invalid filter name(s): 'Commands'

A Question file transfer using socket in python

I'm currently creating an encrypted chat program. Text chat works well. However, I want to implement file transfer, but it doesn't work. My code is trying to work in a way that when one client tries to transfer a file, the server receives it and sends it to another client. When I type '/filetransfer' to transfer file.
Dick: hi
/filetransfer
Sending...
Exception in thread Thread-2:
Traceback (most recent call last):
File "C:\Python\lib\threading.py", line 932, in _bootstrap_inner
self.run()
File "C:\Python\lib\threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "c:\Users\USER\Desktop\filetest\client.py", line 198, in sndChat
self.sndFile()
File "c:\Users\USER\Desktop\filetest\client.py", line 233, in sndFile
clientSocket.send(l)
This error occurred. I think the client cannot send the file data.
Also, I would like to apply Diffie-Hellman and AES used for text encryption to file transfer. I spent a lot of time here, but it doesn't work. I desperately need help...
Client.py
def rcvChat(self):
print("\nWelcome to Chatee!")
while True:
try:
message = clientSocket.recv(4096).decode(encodeType)
if self.thred_done:
message=self.aes.decrypt(message)
print(message)
if message == 'filetransfer start':
filereceive_thread = threading.Thread(target=self.rcvChat)
filereceive_thread.join()
#write_thread = threading.Thread(target=self.sndChat)
#write_thread.join()
#self.rcvFile()
break
def sndChat(self):
while True:
message = input('')
if message == '/filetransfer':
message = self.aes.encrypt(message)
clientSocket.send(message)
writefile_thread = threading.Thread(target=self.sndChat)
writefile_thread.start()
self.sndFile()
break
message = self.aes.encrypt(message)
clientSocket.send(message)
def sndFile(self):
print("---File Transfer---")
print("Type a file name...")
filename = 'C:\\Users\\USER\\Desktop\\filetest\\test.txt'
#clientSocket.send(filename.encode(encodeType))
#data_transferred = 0
if not exists(filename):
print("The file doesn't exsit.")
f = open(filename,'rb')
print ('Sending...')
l = f.read(8096)
while (l):
print ('Sending...')
#data_transferred += clientSocket.send(l)
clientSocket.send(l)
l = f.read(8096)
f.close()
print ('Done Sending')
#clientSocket.shutdown(socket.SHUT_WR)
print (clientSocket.recv(8096))
#clientSocket.close
def rcvFile(self):
#filename = clientSocket.recv(1024).decode(encodeType)
#filename = self.aes.decrypt(filename)
filename = 'received.txt'
f = open(filename,'wb')
while True:
print ('Receiving...')
l = clientSocket.recv(8096)
if not l:
print("Fail file transfer")
#sys.exit()
while (l):
print ('Receiving...')
f.write(l)
l = clientSocket.recv(8096)
f.close()
print ('Done Receiving')
Server.py
def handle_client(self,client,client_addr):
client_pvt_key=self.client_keys[client]
client_name=self.clients[client]
print(f"[{client_addr[0]}]-{client_addr[1]} - [{client_name}] - Connected")
print(f"Active Connections - {threading.active_count()-1}")
self.broadcast(f'{client_name} has joined the chat!\n\n')
aes=AESCipher(client_pvt_key)
while True:
try:
msg = aes.decrypt(client.recv(self.header)) #복호화 안하고 바로 브로드캐스트 해도 될듯
if msg == '/filetransfer':
#보낸 사람 제외하고 보내기
self.broadcast('filetransfer start')
thread = threading.Thread(target=self.sndFile, args=(client, ))
thread.start()
thread.join()
elif msg==self.quit_msg:
break
print(f"[{client_addr[0]}]-{client_addr[1]} - [{client_name}]")
msg=f'{client_name}: {msg}'
self.broadcast(msg)
except:
break
client.close()
print(f"[{client_addr[0]}]-{client_addr[1]} - [{client_name}] - quit_msged")
del self.clients[client]
del self.client_keys[client]
self.broadcast(f'{client_name} has left the chat\n')
print(f"Active Connections - {threading.active_count()-2}")
def broadcast(self,msg):
for client in self.clients:
aes=AESCipher(self.client_keys[client])
crypted_msg=aes.encrypt(msg)
client.send(crypted_msg)
def sndFile(self, client):
print("---File Transfer---")
#print("Type a file name...")
client_pvt_key=self.client_keys[client]
aes=AESCipher(client_pvt_key)
#filename = client.recv(1024).decode(self.encodetype)
#self.broadcast('fuck',filename)
while True:
try:
l = client.recv(8096)
print('Rceiving...')
#del self.clients[client]
for client in self.clients:
client.send(l)
#client.send(filename.encode(self.encodetype))
#l = client.recv(8096)
if not l:
print("Fail file transfer")
except:
print('file fail')
break

MQTT: Python script should subscribe to subtopics

we're working on a project where some sensors send data to a mqtt broker and we wrote a python script which takes this data and stores it in a csv file.
now when we're adding more sensors our topics vary like this:
topic/sensor1
topic/sensor2
and so on. Now we want to get the subtopics automated in this script to not hardcode it when a sensor is added or removed.
Have you any suggestions, how we can subscribe in a loop to all subtopics?
We have the following so far:
import paho.mqtt.client as mqtt
import logging
from datetime import datetime
def on_subscribe(mosq, obj, mid, granted_qos):
print("Subscribed: " + str(mid))
def on_log(client, userdata, level, buf):
print(buf)
def on_connect(client, userdata, flags, rc):
print("Connected with result code "+str(rc))
client.subscribe("envdata/#")
def on_message(client, userdata, msg):
f = open("log.csv", "a")
msg_decoded = str(msg.payload, 'utf-8')
msg_decoded = msg_decoded.replace("\n","")
msg_decoded = msg_decoded + "\ttime:" + datetime.now().strftime("%d/%m/%Y %H:%M:%S") + "\n"
f.write(msg_decoded)
f.close()
print(msg.topic+" "+msg_decoded)
client = mqtt.Client()
client.on_connect = on_connect
client.on_message = on_message
client.on_log = on_log
client.on_subscribe = on_subscribe
client.username_pw_set(user, password=password)
client.connect(url, 1883, 60)
client.loop_forever()

We figured it out. So as we subscribe to each subtopic with client.subscribe("topic/#") we can access all topcs in on_message callback with msg.topic.
And now we can store this topic in a string which represents the .csv file.
So our on_message callback now looks like the following:
def on_message(client, userdata, msg):
filename = msg.topic
filename = filename.replace("/","-")
f = open(filename + ".csv", "a")
msg_decoded = str(msg.payload, 'utf-8')
msg_decoded = msg_decoded.replace("\n","")
msg_decoded = msg_decoded + "\ttime:" + datetime.now().strftime("%d/%m/%Y %H:%M:%S") + "\n"
f.write(msg_decoded)
f.close()
print(msg.topic+" "+msg_decoded)
This works fine for what we wanted to reach with this script. Now when new messages are recognised by the script it opens or creates a file like topic-subtopic.csv and fills it with the expected data.

on_connect() takes exactly 3 arguments (4 given)

(ERROR MODULE) python mqtt_Listen_Sensor_Data.py
Previously I had a problem with localhost but now im getting another error. I'm trying to store my MQTT data in SQLITE database on raspberry. What am I doing wrong to get the error below?
CODE:
import paho.mqtt.client as mqtt
from store_Sensor_Data_to_DB import sensor_Data_Handler
# MQTT Settings
MQTT_Broker = "localhost"
MQTT_Port = 1883
Keep_Alive_Interval = 45
MQTT_Topic = "kuca/primanje/kanta01/r"
#Subscribe to all Sensors at Base Topic
def on_connect(mosq, obj, rc):
self.subscribe(MQTT_Topic,0)
#Save Data into DB Table
def on_message(mosq, obj, msg):
self.subscribe(MQTT_Topic, 0)
# This is the Master Call for saving MQTT Data into DB
# For details of "sensor_Data_Handler" function please refer "sensor_data_to_db.py"
print "MQTT Data Received..."
print "MQTT Topic: " + msg.topic
print "Data: " + msg.payload
sensor_Data_Handler(msg.topic, msg.payload)
def on_subscribe(mosq, obj, mid, granted_qos):
pass
mqttc = mqtt.Client()
# Assign event callbacks
mqttc.on_message = on_message
mqttc.on_connect = on_connect
mqttc.on_subscribe = on_subscribe
# Connect
mqttc.connect(MQTT_Broker, int(MQTT_Port), int(Keep_Alive_Interval))
# Continue the network loop
mqttc.loop_forever()
ERROR:
pi#Pi:~/Desktop/SQLITE $ python mqtt_Listen_Sensor_Data.py
Traceback (most recent call last):
File "mqtt_Listen_Sensor_Data.py", line 46, in <module>
mqttc.loop_forever()
File "/usr/local/lib/python2.7/dist-packages/paho/mqtt/client.py", line 1481, in loop_forever
rc = self.loop(timeout, max_packets)
File "/usr/local/lib/python2.7/dist-packages/paho/mqtt/client.py", line 1003, in loop
rc = self.loop_read(max_packets)
File "/usr/local/lib/python2.7/dist-packages/paho/mqtt/client.py", line 1284, in loop_read
rc = self._packet_read()
File "/usr/local/lib/python2.7/dist-packages/paho/mqtt/client.py", line 1849, in _packet_read
rc = self._packet_handle()
File "/usr/local/lib/python2.7/dist-packages/paho/mqtt/client.py", line 2311, in _packet_handle
return self._handle_connack()
File "/usr/local/lib/python2.7/dist-packages/paho/mqtt/client.py", line 2372, in _handle_connack
self.on_connect(self, self._userdata, flags_dict, result)
TypeError: on_connect() takes exactly 3 arguments (4 given)
I am really sorry for having troubled you so much.

Your problem resides here: you define a function, and address the self without actually passing it:
#Subscribe to all Sensors at Base Topic
def on_connect(mosq, obj, rc):
self.subscribe(MQTT_Topic,0)
Then you create an object, and assign your function as an attribute of that object:
mqttc = mqtt.Client()
# Assign event callbacks
mqttc.on_message = on_message
mqttc.on_connect = on_connect
Your on_connect function isn't an instance method.
When you call an instance method, the self variable is passed as first argument.
So when you call mgttc.on_connect(x, y, z) what actually executed is mgttc.on_connect(self, x, y, z).

Your on_connect() callback must have this signature (from paho python doc) :
def on_connect(client, userdata, flags, rc):
If you want to use it in another class you can use this signature :
def on_connect(self, client, userdata, flags, rc):
Furthermore, variable self is undefined in the on_connect() and on_message() callbacks, for example :
self.subscribe(MQTT_Topic,0)
must be
mqttc.subscribte(MQTT_Topic, 0)
Hope this will help you

how to use threading with a 'neverending' process

I'm attempting to add an irc client to a django web application I'm working on. I'd like the server side code for the irc communication to use python and connect through the sockets library. I'll then use gevent-socketio to send and receive data from the irc channel to the client side in the browser. So far I have a very basic gevent-socketio server and client that can be used for realtime broadcasting amongst multiple clients, however, when I start to connect clients to IRC they connect to the IRC server successfully using a nick passed from the client, but then it appears that this is ongoing keepalive/listening process is blocking be from sending any messages from the client.
Python IRC code
import socket
class pycli:
def __init__(self,user):
self.nick = user
self.chan = "#testchannel"
self.owner = "Bluebot"
self.sock = socket.socket()
print "irc conn"
def send_msg(self,message):
self.sock.send("PRIVMSG " + self.chan + " : " + message + "\r\n")
## misc setup
def keep_alive(self):
self.sock.connect(("irc.freenode.net",6667))
self.sock.send("USER " + self.nick + " 0 * :" + self.owner + "\r\n")
self.sock.send("NICK " + self.nick + "\r\n")
while 1:
## keep checking for data
data = self.sock.recv(512)
datalen = len(data.split(" "))
sender = ""
msg_type = ""
msg_rcpt = ""
message = ""
###----------------------------------------------
## reply to keep alive pings
if data[0:4] == "PING":
self.sock.send(data.replace("PING", "PONG"))
if data[0]!=':':
continue
if data.split(" ")[1] == "001":
self.sock.send("MODE " + self.nick + " +B\r\n")
self.sock.send("JOIN " + self.chan + "\r\n")
###-----------------------------------------------
##split and assign data parts
## parse out the actual sender
send_data = data.split(" ")[0]
send_data = send_data[1:]
sender = send_data.split('!')[0]
## mode
msg_type = data.split(" ")[1]
## if it exists get the recipient (room or private)
if datalen > 2:
msg_rcpt = data.split(" ")[2]
## get the actual message body
if datalen > 3:
message = (" ".join(data.split(" ")[3:])).lower()[1:]
print data
I know this functionality is super basic, but I can expand on it once I get it working through the client.
The relevant parts of my server code basically looks like:
def on_login(self, nick):
if self.nick:
self._broadcast('exit', self.nick)
self.nick = nick
self._broadcast('enter', nick)
self.emit('users',
[ ns.nick
for ns in self._registry.values()
if ns.nick is not None ])
t = threading.Thread(target=self.make_start_irc(nick),daemon=True)
t.start()
def on_chat(self, message):
if self.nick:
self._broadcast('chat', dict(u=self.nick, m=message))
self._irc_nicks[self.nick].send_msg("this is a test")
else:
self.emit('chat', dict(u='SYSTEM', m='You must first login'))
def make_start_irc(self,nick):
if nick not in self._irc_nicks.values():
self._irc_nicks[nick] = pycli.pycli(nick)
print self._irc_nicks
self._irc_nicks[nick].keep_alive()
def _broadcast(self, event, message):
for s in self._registry.values():
s.emit(event, message)
def chat(environ, start_response):
if environ['PATH_INFO'].startswith('/socket.io'):
return socketio_manage(environ, { '/chat': ChatNamespace })
else:
return serve_file(environ, start_response)
def serve_file(environ, start_response):
path = os.path.normpath(
os.path.join(public, environ['PATH_INFO'].lstrip('/')))
assert path.startswith(public), path
if os.path.exists(path):
start_response('200 OK', [('Content-Type', 'text/html')])
with open(path) as fp:
while True:
chunk = fp.read(4096)
if not chunk: break
yield chunk
else:
start_response('404 NOT FOUND', [])
yield 'File not found'
if __name__ == "__main__":
from gevent import monkey
monkey.patch_all()
sio_server = SocketIOServer(
('', 8080), chat,
policy_server=False)
t2 = threading.Thread(target=sio_server.serve_forever())
t2.start()
When I eventually give up and use ctrl-C, I see the following stacktrace which leads me to believe something about the way I'm threading is blocking.
Traceback (most recent call last):
File "socketio_test.py", line 92, in <module>
t2 = threading.Thread(target=sio_server.serve_forever())
File "/Users/andrewscott/Desktop/wham/pycli/wham/lib/python2.7/site-packages/gevent/baseserver.py", line 284, in serve_forever
self._stop_event.wait()
File "/Users/andrewscott/Desktop/wham/pycli/wham/lib/python2.7/site-packages/gevent/event.py", line 77, in wait
result = self.hub.switch()
File "/Users/andrewscott/Desktop/wham/pycli/wham/lib/python2.7/site-packages/gevent/hub.py", line 338, in switch
return greenlet.switch(self)
KeyboardInterrupt
If anyone has any idea how I can change the irc process to be non-blocking, or any general suggestions they'd be greatly appreciated.

You should remove the call:
t2 = threading.Thread(target=sio_server.serve_forever())
And properly pass the method:
t2 = threading.Thread(target=sio_server.serve_forever)