python实现带验证码网站的自动登陆实现代码

#!usr/bin/env python#-*- coding: utf-8 -*-import osimport urllib2import urllibimport cookielibimport xml.etree.ElementTree as ET#-----------------------------------------------------------------------------# Login in www.***.com.cndef ChinaBiddingLogin(url, username, password):    # Enable cookie support for urllib2    cookiejar=cookielib.CookieJar()    urlopener=urllib2.build_opener(urllib2.HTTPCookieProcessor(cookiejar))    urllib2.install_opener(urlopener)        urlopener.addheaders.append(('Referer', 'http://www.chinabidding.com.cn/zbw/login/login.jsp'))    urlopener.addheaders.append(('Accept-Language', 'zh-CN'))    urlopener.addheaders.append(('Host', 'www.chinabidding.com.cn'))    urlopener.addheaders.append(('User-Agent', 'Mozilla/5.0 (compatible; MISE 9.0; Windows NT 6.1); Trident/5.0'))    urlopener.addheaders.append(('Connection', 'Keep-Alive'))    print 'XXX Login......'    imgurl=r'http://www.*****.com.cn/zbw/login/image.jsp'    DownloadFile(imgurl, urlopener)    authcode=raw_input('Please enter the authcode:')    #authcode=VerifyingCodeRecognization(r"http://192.168.0.106/images/code.jpg")    # Send login/password to the site and get the session cookie    values={'login_id':username, 'opl':'op_login', 'login_passwd':password, 'login_check':authcode}    urlcontent=urlopener.open(urllib2.Request(url, urllib.urlencode(values)))    page=urlcontent.read(500000)    # Make sure we are logged in, check the returned page content    if page.find('login.jsp')!=-1:        print 'Login failed with username=%s, password=%s and authcode=%s' /                % (username, password, authcode)        return False    else:        print 'Login succeeded!'        return True#-----------------------------------------------------------------------------# Download from fileUrl then save to fileToSave# Note: the fileUrl must be a valid filedef DownloadFile(fileUrl, urlopener):    isDownOk=False    try:        if fileUrl:            outfile=open(r'/var/www/images/code.jpg', 'w')            outfile.write(urlopener.open(urllib2.Request(fileUrl)).read())            outfile.close()            isDownOK=True        else:            print 'ERROR: fileUrl is NULL!'    except:        isDownOK=False    return isDownOK#------------------------------------------------------------------------------# Verifying code recoginizationdef VerifyingCodeRecognization(imgurl):    url=r'http://192.168.0.119:800/api?'    user='admin'    pwd='admin'    model='ocr'    ocrfile='cbi'    values={'user':user, 'pwd':pwd, 'model':model, 'ocrfile':ocrfile, 'imgurl':imgurl}    data=urllib.urlencode(values)    try:        url+=data        urlcontent=urllib2.urlopen(url)    except IOError:        print '***ERROR: invalid URL (%s)' % url    page=urlcontent.read(500000)    # Parse the xml data and get the verifying code    root=ET.fromstring(page)    node_find=root.find('AddField')    authcode=node_find.attrib['data']    return authcode#------------------------------------------------------------------------------# Read users from configure filedef ReadUsersFromFile(filename):    users={}    for eachLine in open(filename, 'r'):        info=[w for w in eachLine.strip().split()]        if len(info)==2:            users[info[0]]=info[1]    return users#------------------------------------------------------------------------------def main():    login_page=r'http://www.***.com.cnlogin/login.jsp'    download_page=r'http://www.***.com.cn***/***?record_id='    start_id=8593330    end_id=8595000    now_id=start_id    Users=ReadUsersFromFile('users.conf')    while True:        for key in Users:            if ChinaBiddingLogin(login_page, key, Users[key]):                for i in range(3):                    pageUrl=download_page+'%d' % now_id                    urlcontent=urllib2.urlopen(pageUrl)                    filepath='./download/%s.html' % now_id                    f=open(filepath, 'w')                    f.write(urlcontent.read(500000))                    f.close()                    now_id+=1            else:                continue#------------------------------------------------------------------------------if __name__=='__main__':    main()