init

README.md

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+# Netc(h)at
+> minimalist webchat where the client is any generic netcat implementation
+
+I saw someone posting about a program like this one,
+I wondered how hard could it be.
+Apparently,
+too easy,
+so I started pushing for the minimun number of characters
+with which all initial features keep working.
+Hence `net_chat.full.py` & `net\_chat.min.py.
+
+To run the server:
+```Bash
+$ python3 net_chat.min.py 12345
+```
+
+To join:
+```Bash
+$ nc 127.0.0.1 12345
+```
+
+That, or have more fun using Tor tunneling.

netchat.full.py

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+#!/bin/python3
+import socket
+from sys import argv
+from signal import signal, SIGINT
+
+socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+socket.bind(('localhost', int(argv[1])))
+socket.listen(100)
+socket.setblocking(False)
+
+signal(SIGINT, lambda a, b: (socket.close(), exit(0)))
+
+print(f"Listening on {argv[1]}...")
+
+class User:
+	def __init__(self, i):
+		self.username = "anon" + str((id(self) % 999 + 1))
+		self.socket, _ = i
+		self.socket.settimeout(1)
+
+users = []
+
+while True:
+	try:
+		users.append(User(socket.accept()))
+	except BlockingIOError:
+		pass
+	for i in users:
+		try:
+			msg = i.socket.recv(1024)
+		except TimeoutError:
+			continue
+		if msg:
+		   for h in users:
+			   h.socket.send((i.username + ": " + msg.decode()).encode())

netchat.min.py

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+import sys,signal as S
+s=__import__("socket").socket()
+s.bind(("localhost",int(sys.argv[1])))
+s.listen()
+s.setblocking(0)
+S.signal(2,lambda a,b:(s.close(),exit(0)))
+print(f"Listening on {sys.argv[1]}...")
+def U(i):
+	i[0].settimeout(1)
+	return ["anon"+str((id("")%999+1)),i[0]]
+u=[]
+while 1:
+	try:u+=[(U(s.accept()))]
+	except OSError:pass
+	for i in u:
+		try:
+			m=i[1].recv(1024)
+			if m:
+				for h in u:h[1].send((i[0]+": "+m.decode()).encode())
+		except OSError:pass