LORlogin

import urllib
import http
from http import cookiejar

CSRF_LEN = 24
cookie = None
opener = None
csrf = None
logged = False
nick = 'anonymous'
passwd = ''

def get_csrf():
    html = opener.open('https://www.linux.org.ru').read().decode('utf-8')
    marker = 'name="csrf" value="'
    start_pos = html.find(marker) + len(marker)
    end_pos = start_pos + CSRF_LEN
    return html[start_pos:end_pos]

def init():
    global cookie, opener, csrf
    cookie = http.cookiejar.CookieJar()
    opener = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(cookie))
    csrf = get_csrf()

def login(nickname, password):
    global csrf, nick, passwd, logged
    csrf = get_csrf()
    nick = nickname
    passwd = password
    par = urllib.parse.urlencode({
        'csrf': csrf,
        'nick': nick,
        'passwd': passwd}).encode('utf-8')
    resp = opener.open('https://www.linux.org.ru//login_process', par)