使用python模拟登陆百度[python高级教程]

• Z时代
• 2024-01-10
• 分类：综合

使用python模拟登陆百度

#!/usr/bin/python
# -*- coding: utf-8 -*-
import re;
import cookielib;
import urllib;
import urllib2;
import optparse;
#------------------------------------------------------------------------------
# check all cookies in cookiesDict is exist in cookieJar or not
def checkAllCookiesExist(cookieNameList, cookieJar) :
    cookiesDict = {};
    for eachCookieName in cookieNameList :
        cookiesDict[eachCookieName] = False;
    allCookieFound = True;
    for cookie in cookieJar :
        if(cookie.name in cookiesDict) :
            cookiesDict[cookie.name] = True;
    for eachCookie in cookiesDict.keys() :
        if(not cookiesDict[eachCookie]) :
            allCookieFound = False;
            break;
    return allCookieFound;
#------------------------------------------------------------------------------
# just for print delimiter
def printDelimiter():
    print "-"*80;
#------------------------------------------------------------------------------
# main function to emulate login baidu
def emulateLoginBaidu():
    print "Function: Used to demostrate how to use Python code to emulate login baidu main page: http://www.baidu.com/";
    print "Usage: emulate_login_baidu_python.py -u yourBaiduUsername -p yourBaiduPassword";
    printDelimiter();
    # parse input parameters
    parser = optparse.OptionParser();
    parser.add_option("-u","--username",action="store",type="string",default="",dest="username",help="Your Baidu Username");
    parser.add_option("-p","--password",action="store",type="string",default="",dest="password",help="Your Baidu password");
    (options, args) = parser.parse_args();
    # export all options variables, then later variables can be used
    for i in dir(options):
        exec(i + " = options." + i);
    printDelimiter();
    print "[preparation] using cookieJar & HTTPCookieProcessor to automatically handle cookies";
    cj = cookielib.CookieJar();
    opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj));
    urllib2.install_opener(opener);
    printDelimiter();
    print "[step1] to get cookie BAIDUID";
    baiduMainUrl = "http://www.baidu.com/";
    resp = urllib2.urlopen(baiduMainUrl);
    #respInfo = resp.info();
    #print "respInfo=",respInfo;
    for index, cookie in enumerate(cj):
        print "[",index, "]",cookie;
    printDelimiter();
    print "[step2] to get token value";
    getapiUrl = "https://passport.baidu.com/v2/api/?getapi&class=login&tpl=mn&tangram=true";
    getapiResp = urllib2.urlopen(getapiUrl);
    #print "getapiResp=",getapiResp;
    getapiRespHtml = getapiResp.read();
    #print "getapiRespHtml=",getapiRespHtml;
    #bdPass.api.params.login_token="5ab690978812b0e7fbbe1bfc267b90b3";
    foundTokenVal = re.search("bdPass.api.params.login_token="(?P<tokenVal>w+)";", getapiRespHtml);
    if(foundTokenVal):
        tokenVal = foundTokenVal.group("tokenVal");
        print "tokenVal=",tokenVal;
        printDelimiter();
        print "[step3] emulate login baidu";
        staticpage = "http://www.baidu.com/cache/user/html/jump.html";
        baiduMainLoginUrl = "https://passport.baidu.com/v2/api/?login";
        postDict = {
            #"ppui_logintime": "",
            "charset"       : "utf-8",
            #"codestring"    : "",
            "token"         : tokenVal, #de3dbf1e8596642fa2ddf2921cd6257f
            "isPhone"       : "false",
            "index"         : "0",
            #"u"             : "",
            #"safeflg"       : "0",
            "staticpage"    : staticpage, #http%3A%2F%2Fwww.baidu.com%2Fcache%2Fuser%2Fhtml%2Fjump.html
            "loginType"     : "1",
            "tpl"           : "mn",
            "callback"      : "parent.bdPass.api.login._postCallback",
            "username"      : username,
            "password"      : password,
            #"verifycode"    : "",
            "mem_pass"      : "on",
        };
        postData = urllib.urlencode(postDict);
        # here will automatically encode values of parameters
        # such as:
        # encode http://www.baidu.com/cache/user/html/jump.html into http%3A%2F%2Fwww.baidu.com%2Fcache%2Fuser%2Fhtml%2Fjump.html
        #print "postData=",postData;
        req = urllib2.Request(baiduMainLoginUrl, postData);
        # in most case, for do POST request, the content-type, is application/x-www-form-urlencoded
        req.add_header("Content-Type", "application/x-www-form-urlencoded");
        resp = urllib2.urlopen(req);
        #for index, cookie in enumerate(cj):
        #    print "[",index, "]",cookie;
        cookiesToCheck = ["BDUSS", "PTOKEN", "STOKEN", "SAVEUSERID"];
        loginBaiduOK = checkAllCookiesExist(cookiesToCheck, cj);
        if(loginBaiduOK):
            print "+++ Emulate login baidu is OK, ^_^";
        else:
            print "--- Failed to emulate login baidu !"
    else:
        print "Fail to extract token value from html=",getapiRespHtml;
if __name__=="__main__":
    emulateLoginBaidu();

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