STRLCPY/100-redteam-projects

[0]	TCP or UDP server just to receive messages - <Python> | AugustoSavi

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Projects/0_UDP_server/README.md

1	+	# UDP server just to receive messages
2	+	>the focus of this challenge was the server, but without the client you would spend more work to test
3	+
4	+	https://user-images.githubusercontent.com/32443720/133181445-82ca16e0-a9ff-4eb1-b01a-c21e6dc64be9.mp4
5	+
6	+	## :information_source: technologies used
7	+
8	+	* Python
9	+
10	+	## :information_source: How use?
11	+	```bash
12	+	# Clone the repository
13	+	$ git clone https://github.com/kurogai/100-redteam-projects
14	+
15	+	# Enter the repository
16	+	$ cd 100-redteam-projects/0_UDP_server
17	+
18	+	# Open a terminal and run
19	+	$ python3 UDPserver.py
20	+
21	+	# Open a new terminal and run
22	+	$ python3 UDPclient.py
23	+	```
24	+
25	+	## :books: References
26	+	https://www.youtube.com/watch?v=Cr-tPf-MUgI&list=WL&index=12
27	+
28	+	https://pythontic.com/modules/socket/udp-client-server-example
29	+
30	+
31	+	## Developer
32	+
33	+	[<img src="https://avatars.githubusercontent.com/u/32443720?v=4" width=115 > <br> <sub> Augusto Savi </sub>](https://github.com/AugustoSavi) \|
34	+	\| :---: \|
35	+

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Projects/0_UDP_server/UDPclient.py

1	+	import socket
2	+
3	+	serverAddressPort = ("127.0.0.1", 20001)
4	+	bufferSize = 1024
5	+
6	+	# Create a UDP socket at client side
7	+	UDPClientSocket = socket.socket(family=socket.AF_INET, type=socket.SOCK_DGRAM)
8	+
9	+
10	+	while True:
11	+	msgFromClient = input("Send Some text to UDP Server: ")
12	+	bytesToSend = str.encode(msgFromClient)
13	+
14	+	# Send to server using created UDP socket
15	+	UDPClientSocket.sendto(bytesToSend, serverAddressPort)
16	+
17	+	message, address = UDPClientSocket.recvfrom(bufferSize)
18	+	msg = "\nMessage from Server: {} \n".format(message.decode('UTF-8'))
19	+
20	+	print(msg)

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Projects/0_UDP_server/UDPserver.py

1	+
2	+	import socket
3	+
4	+	localIP = "127.0.0.1"
5	+	localPort = 20001
6	+	bufferSize = 1024
7	+	msgFromServer = "Message received on UDP Client and sending it again: "
8	+
9	+	# Create a datagram socket
10	+	UDPServerSocket = socket.socket(family=socket.AF_INET, type=socket.SOCK_DGRAM)
11	+
12	+	# Bind to address and ip
13	+	UDPServerSocket.bind((localIP, localPort))
14	+
15	+	print("UDP server up and listening")
16	+
17	+	# Listen for incoming datagrams
18	+	while(True):
19	+	message, address = UDPServerSocket.recvfrom(bufferSize)
20	+
21	+	print("\nMessage from Client:{0} \nClient IP Address:{1} \n".format(message.decode('UTF-8'),address))
22	+
23	+	bytesTosend = msgFromServer + message.decode('UTF-8')
24	+	# Sending a reply to client
25	+	UDPServerSocket.sendto(str.encode(bytesTosend), address)