import urllib,urllib2,cookielib
import re

username='observer'
password='3b25e07'

class AP:
    def __init__(self,loginurl,homeurl,homeregex):
        self.loginurl = loginurl
        self.homeurl = homeurl
        self.homeregex = homeregex
        cookie_support = urllib2.HTTPCookieProcessor(cookielib.CookieJar())
        self.opener = urllib2.build_opener(cookie_support)

    def login(self):
        pass

    def get_credit(self):
        pass


class U_8CND_COM(AP):
    def __init__(self):
        AP.__init__(self,
                'http://u.8cnd.com/index.php?action=postuserlogin',
                'http://u.8cnd.com/affliate/',
                '<strong>(\d+\.\d+)' )
    
    def login(self):
        data = urllib.urlencode({'username':username,'password':password,'image.x':'42','image.y':'17'})
        return self.opener.open(self.loginurl,data).read()
    
    def get_credit(self):
        page = self.login()
        credit = re.compile(self.homeregex).findall(page)
        if credit:
            credit = max( [ float(x) for x in credit ] )
        return credit

if __name__ == '__main__':
    ap_8cnd = U_8CND_COM()
    print ap_8cnd.get_credit()