python模拟新浪微博登陆功能(新浪微博爬虫)

import urllib2
import cookielib

import WeiboEncode
import WeiboSearch

if __name__ == '__main__':
    weiboLogin = WeiboLogin('×××@gmail.com', '××××')#邮箱（账号）、密码
    if weiboLogin.Login() == True:
        print "登陆成功！"

class WeiboLogin:
    def __init__(self, user, pwd, enableProxy = False):
        "初始化WeiboLogin，enableProxy表示是否使用代理服务器，默认关闭"

        print "Initializing WeiboLogin..."
        self.userName = user
        self.passWord = pwd
        self.enableProxy = enableProxy

        self.serverUrl = "http://login.sina.com.cn/sso/prelogin.php?entry=weibo&callback=sinaSSOController.preloginCallBack&su=&rsakt=mod&client=ssologin.js(v1.4.11)&_=1379834957683"
        self.loginUrl = "http://login.sina.com.cn/sso/login.php?client=ssologin.js(v1.4.11)"
        self.postHeader = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; rv:24.0) Gecko/20100101 Firefox/24.0'}

def Login(self):
        "登陆程序" 
        self.EnableCookie(self.enableProxy)#cookie或代理服务器配置

        serverTime, nonce, pubkey, rsakv = self.GetServerTime()#登陆的第一步
        postData = WeiboEncode.PostEncode(self.userName, self.passWord, serverTime, nonce, pubkey, rsakv)#加密用户和密码
        print "Post data length:\n", len(postData)

        req = urllib2.Request(self.loginUrl, postData, self.postHeader)
        print "Posting request..."
        result = urllib2.urlopen(req)#登陆的第二步——解析新浪微博的登录过程中3
        text = result.read()
        try:
            loginUrl = WeiboSearch.sRedirectData(text)#解析重定位结果
              urllib2.urlopen(loginUrl)
        except:
            print 'Login error!'
            return False

        print 'Login sucess!'
        return True

def EnableCookie(self, enableProxy):
    "Enable cookie & proxy (if needed)."

    cookiejar = cookielib.LWPCookieJar()#建立cookie
    cookie_support = urllib2.HTTPCookieProcessor(cookiejar)

    if enableProxy:
        proxy_support = urllib2.ProxyHandler({'http':'http://xxxxx.pac'})#使用代理
         opener = urllib2.build_opener(proxy_support, cookie_support, urllib2.HTTPHandler)
        print "Proxy enabled"
    else:
        opener = urllib2.build_opener(cookie_support, urllib2.HTTPHandler)

    urllib2.install_opener(opener)#构建cookie对应的opener

def GetServerTime(self):
    "Get server time and nonce, which are used to encode the password"

    print "Getting server time and nonce..."
    serverData = urllib2.urlopen(self.serverUrl).read()#得到网页内容
     print serverData

    try:
        serverTime, nonce, pubkey, rsakv = WeiboSearch.sServerData(serverData)#解析得到serverTime，nonce等
         return serverTime, nonce, pubkey, rsakv
    except:
        print 'Get server time & nonce error!'
        return None

import re
import json

def sServerData(serverData):
    "Search the server time & nonce from server data"

    p = re.compile('\((.*)\)')
    jsonData = p.search(serverData).group(1)
    data = json.loads(jsonData)
    serverTime = str(data['servertime'])
    nonce = data['nonce']
    pubkey = data['pubkey']#
    rsakv = data['rsakv']#
    print "Server time is:", serverTime
    print "Nonce is:", nonce
    return serverTime, nonce, pubkey, rsakv

def sRedirectData(text):
    p = re.compile('location\.replace\([\'"](.*?)[\'"]\)')
    loginUrl = p.search(text).group(1)
    print 'loginUrl:',loginUrl
    return loginUrl

import urllib
import base64
import rsa
import binascii

def PostEncode(userName, passWord, serverTime, nonce, pubkey, rsakv):
    "Used to generate POST data"

    encodedUserName = GetUserName(userName)#用户名使用base64加密
     encodedPassWord = get_pwd(passWord, serverTime, nonce, pubkey)#目前密码采用rsa加密
     postPara = {
        'entry': 'weibo',
        'gateway': '1',
        'from': '',
        'savestate': '7',
        'userticket': '1',
        'ssosimplelogin': '1',
        'vsnf': '1',
        'vsnval': '',
        'su': encodedUserName,
        'service': 'miniblog',
        'servertime': serverTime,
        'nonce': nonce,
        'pwencode': 'rsa2',
        'sp': encodedPassWord,
        'encoding': 'UTF-8',
        'prelt': '115',
        'rsakv': rsakv,    
        'url': 'http://weibo.com/ajaxlogin.php?framelogin=1&callback=parent.sinaSSOController.feedBackUrlCallBack',
        'returntype': 'META'
    }
    postData = urllib.urlencode(postPara)#网络编码
    return postData

def GetUserName(userName):
    "Used to encode user name"

    userNameTemp = urllib.quote(userName)
    userNameEncoded = base64.encodestring(userNameTemp)[:-1]
    return userNameEncoded

def get_pwd(password, servertime, nonce, pubkey):
    rsaPublickey = int(pubkey, 16)
    key = rsa.PublicKey(rsaPublickey, 65537) #创建公钥
    message = str(servertime) + '\t' + str(nonce) + '\n' + str(password) #拼接明文js加密文件中得到
    passwd = rsa.encrypt(message, key) #加密
    passwd = binascii.b2a_hex(passwd) #将加密信息转换为16进制。
    return passwd

loginUrl: http://weibo.com/ajaxlogin.php?framelogin=1&callback=parent.sinaSSOController.feedBackUrlCallBack&ssosavestate=1390390056&ticket=ST-MzQ4NzQ5NTYyMA==-1387798056-xd-284624BFC19FE242BBAE2C39FB3A8CA8&retcode=0
Login sucess!

htmlContent = urllib2.urlopen(myurl).read()#得到myurl网页的所有内容(html)