import urllib
import re

def tut_login(user, password):
    # Get posturl
    loginpage = urllib.urlopen("https://signin.public.tut.fi/").read()
    posturl = re.search('''<form .* action=['"]([^'"]+)['"].*>''', loginpage).group(1)
    posturl = "https://signin.public.tut.fi/" + posturl
    # Login
    params = urllib.urlencode({'user': user, 'pass': password, 'login': 'login'})
    data = urllib.urlopen(posturl, params).read()
    return 'Logged in' in data

if __name__ == '__main__':
    import getpass
    user = 'aimonen'
    password = getpass.getpass("Password for tut/%s: " % user)

    if tut_login(user, password):
         print "Logged in!"
    else:
         print "Login failed"