server.py

import socket
from _thread import *
from tkinter import *


def threaded(client_socket, addr):
    global chat_log
    global namebool
    while namebool == True:
        data = client_socket.recv(1024)
        chat_log['state'] = 'normal'
        name = str(data.decode())
        namebool = False
        chat_log['state'] = 'normal'
        chat_log.insert("end", '[System] ' + name +' 님이 접속하였습니다.'+'\n')
        chat_log['state'] = 'disabled'
        for c in c_list:
            c.sendall(('[System] ' + '☈' + name + ' 님이 접속하였습니다.').encode())
    while 1:
        try:
            data = client_socket.recv(1024)
            chat_log['state'] = 'normal'
            chat_log.insert("end", name + ':' + '\n' + str(data.decode()) + '\n' + '\n')
            chat_log['state'] = 'disabled'
            for c in c_list:
                c.sendall((name + '☈' + data.decode()).encode())
        except ConnectionResetError as e:
            c_list.remove(client_socket)
            for c in c_list:
                c.sendall(('[System] ' + name + ' 님이 나갔습니다.').encode())
            chat_log['state'] = 'normal'
            chat_log.insert("end", 'Disconnected by ' + addr[0] + ':' + str(addr[1]) + '\n')
            chat_log['state'] = 'disabled'
            break
    client_socket.close()


def server_open():
    HOST = ip_entry.get()
    PORT = int(port_entry.get())
    start_new_thread(make_server, (HOST, PORT))
    open_button['state'] = 'disabled'
    ip_entry['state'] = 'readonly'
    port_entry['state'] = 'readonly'


def server_close():
    exit()


def make_server(HOST, PORT):
    global server_socket
    global namebool
    server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

    server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

    server_socket.bind((HOST, PORT))
    server_socket.listen()
    chat_log['state'] = 'normal'
    chat_log.insert("end", 'Server Start\n')
    chat_log['state'] = 'disabled'

    while 1:
        client_socket, addr = server_socket.accept()
        namebool = True
        c_list.append(client_socket)
        start_new_thread(threaded, (c_list[-1], addr))


c_list = []
close = False
server_socket = None
namebool = True

s_root = Tk()
s_root.geometry('500x500')
s_root.title('Server')
s_root.resizable(False, False)

''' Top Menu '''
Label(s_root, text='Server IP : ').place(x=20, y=20)
Label(s_root, text='Port : ').place(x=250, y=20)
ip_entry = Entry(s_root, width=14)
ip_entry.place(x=83, y=21)
ip_entry.insert(0, '127.0.0.1')
port_entry = Entry(s_root, width=5)
port_entry.place(x=290, y=21)
port_entry.insert(0, '9999')
open_button = Button(s_root, text='Server Open', command=server_open)
open_button.place(x=380, y=18)

''' Middle Menu '''
chat_log = Text(s_root, width=65, height=29, state='disabled', spacing2=2)
chat_log.place(x=20, y=60)

''' Bottom Menu '''
close_button = Button(s_root, text='Server Close', command=server_close)
close_button.place(x=200, y=460)
s_root.mainloop()