Simulate login using cookielib in Python

The previous briefly mentioned Python simulation login program, but did not write clearly, here is a annotated Python simulation login sample program. In short, the following process is as follows: first obtain cookie with cookielib, then enter the website that needs to be logged in with cookie.

 # -*- coding: utf-8 -*-

 # !/usr/bin/python
 
 import urllib2
 import urllib
 import cookielib
 import re 
 auth_url = 'http://www.nowamagic.net/'
 home_url = 'http://www.nowamagic.net/';
 #  Login username and password 
 data={
   "username":"nowamagic",
   "password":"pass"
 }
 # urllib coding 
 post_data=urllib.urlencode(data)
 #  Sending header information 

 headers ={

   "Host":"www.nowamagic.net",
 "Referer": "http://www.nowamagic.net"
 }
 #  Initialize the 1 a CookieJar To deal with Cookie

 cookieJar=cookielib.CookieJar()
 #  instantiation 1 A global opener

 opener=urllib2.build_opener(urllib2.HTTPCookieProcessor(cookieJar))

 #  To obtain cookie
 req=urllib2.Request(auth_url,post_data,headers)
 result = opener.open(req)
 #  Visit the home page   Automatically with the cookie information 
 result = opener.open(home_url)
 #  According to the results 
 print result.read()

A few sample programs are attached:

1. Use the existing cookie to access the website

import cookielib, urllib2
 
 ckjar = cookielib.MozillaCookieJar(os.path.join('C:\Documents and Settings\tom\Application Data\Mozilla\Firefox\Profiles\h5m61j1i.default', 'cookies.txt')) 
 req = urllib2.Request(url, postdata, header)
 
 req.add_header('User-Agent', \
   'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)')
 
 opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(ckjar) )
 
 f = opener.open(req)
 htm = f.read()
 f.close()

2. Visit the website to obtain cookie and save the cookie in the cookie file

 import cookielib, urllib2
 
 req = urllib2.Request(url, postdata, header)
 req.add_header('User-Agent', \
   'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)')
 
 ckjar = cookielib.MozillaCookieJar(filename)
 ckproc = urllib2.HTTPCookieProcessor(ckjar)
 
 opener = urllib2.build_opener(ckproc)
 
 f = opener.open(req)
 htm = f.read()
 f.close()
 
 ckjar.save(ignore_discard=True, ignore_expires=True)

3. Generate cookie with the specified parameters and use this cookie to access the website

 import cookielib, urllib2
 
 cookiejar = cookielib.CookieJar()
 urlOpener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cookiejar))
 values = {'redirect':", 'email':'abc@abc.com',
      'password':'password', 'rememberme':", 'submit':'OK, Let Me In!'}
 data = urllib.urlencode(values)
 
 request = urllib2.Request(url, data)
 url = urlOpener.open(request)
 print url.info()
 page = url.read()
 
 request = urllib2.Request(url)
 url = urlOpener.open(request)
 page = url.read()
 print page