python - Python-如何保存/加载特定的Cookie？

我有以下Python代码，应该使用.ROBLOSECURITY cookie登录到网站。它还包含一个except IOERROR:函数，以便如果.ROBLOSECURITY cookie没有登录，它将使用用户名/密码登录，并保存从中获取的cookie。

import urllib2
import urllib
import cookielib

try:
    cookielib.LWPCookieJar().load("cookies.txt") #Trying to load the cookie file

except IOError: #In case the cookies.txt fails to log in. I don't know if IOError is the correct error specification for an expired cookie
    print "Loading stored cookies failed, manually logging in..."
    cj = cookielib.LWPCookieJar()
    opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))
    opener.addheaders = [('User-agent', 'Mozilla/5.0')]
    urllib2.install_opener(opener)
    authentication_url = 'https://www.roblox.com/newlogin'
    payload = {
        'username' : 'UsernameHere',
        'password' : 'PasswordHere',
        '' : 'Log In',
        }
    data = urllib.urlencode(payload)
    req = urllib2.Request(authentication_url, data)
    resp = urllib2.urlopen(req)
    cj.save("cookies.txt") #Saving to the cookie file

tc = urllib2.urlopen("http://www.roblox.com/My/Money.aspx").read() #The hidden page
checksession = re.findall('My Transactions',tc) #Just checking for text that is only found on the hidden page
print checksession

我认为cookielib.LWPCookieJar().load("cookies.txt")无法正常工作，因为它还会加载.ROBLOSECURITY以外的其他cookie（如果您仅使用它，我就知道要登录）。如何只加载.ROBLOSECURITY cookie或仅保存.ROBLOSECURITY（这样其他cookie不会干扰.ROBLOSECURITY登录）？

另外，我不确定我的except IOError:是否能正常工作，因为我只知道将我的cookielib.LWPCookieJar().load("cookies.txt")更改为cookielib.MozillaCookieJar().load("cookies.txt")时该方法才有效

最后，如何将.ROBLOSECURITY的到期日期更改为2050-12-31 24：00：00Z

最佳答案

所以这是我的最终代码：

import urllib #Idk if this is necessary, but I'm not gonna bother checking. Only time I used it was for urllib.urlencode, which idk if urllib2 can do
import urllib2
import cookiejar
try:
    cj = cookielib.MozillaCookieJar("./cookies.txt")
    cj.load()
    opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))
    tc = opener.open("http://www.roblox.com/My/Money.aspx").read()

#    print "Loading stored cookies succeeded, automatically logging in..."

#    checksession = re.findall('My Transactions',tc)

#    if len(checksession) > 0:
#        print "Login success!"

except IOError:
    print "Loading stored cookies failed, manually logging in..."
    opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))
    opener.addheaders = [('User-agent', 'Mozilla/5.0')]
    urllib2.install_opener(opener)
    authentication_url = 'https://www.roblox.com/newlogin'
    payload = {
        'username' : 'USERNAMEHERE',
        'password' : 'PASSWORDHERE',
        '' : 'Log In', #In hindsight Idk if this is necessary, but I don't feel like checking now
        }
    data = urllib.urlencode(payload)
    req = urllib2.Request(authentication_url, data)
    resp = urllib2.urlopen(req)
    cj.save("./cookies.txt") #./ to make sure its in the right directory

    tc = opener.open("http://www.roblox.com/My/Money.aspx").read() #Only accessible if logged in
#    checksession = re.findall('My Transactions',tc) #The rest is to check if log in was success by looking for specific phrase in the page

#    if len(checksession) > 0:
#        print "Login success!"