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代码如下：
#coding:gbk
import urllib2,urllib,cookielib,re
'''
通用的登陆DZ论坛
参数说明parms:
username:用户名(必填),
password :密码(必填),
domain:网站域名，注意格式必须是：http://www.xxx.xx/(必填),
answer:问题答案,
questionid:问题ID,
referer:跳转地址
这里使用了可变关键字参数(相关信息可参考手册)
'''
def login_dz(**parms):
#初始化
parms_key = ['domain','answer','password','questionid','referer','username']
arg = {}
for key in parms_key:
if key in parms:
arg[key] = parms[key]
else:
arg[key] = ''
#cookie设置
cookieFile = './kan_cookies.dat'
cookie = cookielib.LWPCookieJar()
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cookie))
#获取formhash
pre_login = arg['domain']+'member.php?mod=logging&action=login&infloat=yes&handlekey=login&inajax=1&ajaxtarget=fwin_content_login'
c = opener.open(pre_login).read()
cookie.save(cookieFile)
patt = re.compile(r'.*?name="formhash".*?value="(.*?)".*?')
formhash = patt.search(c)
if not formhash:
raise Exception('GET formhash Fail!')
formhash = formhash.group(1)
#登陆
postdata = {
'answer':arg['answer'],
'formhash':formhash,
'password':arg['password'],
'questionid':0 if arg['questionid']=='' else arg['questionid'],
'referer':arg['domain'] if arg['referer']=='' else arg['referer'],
'username':arg['username'],
}
postdata = urllib.urlencode(postdata)
req = urllib2.Request(
url= arg['domain']+'member.php?mod=logging&action=login&loginsubmit=yes&handlekey=login&loginhash=LCaB3&inajax=1',
data=postdata
)
c = opener.open(req).read(300)
flag = '登陆失败 %s'%arg['username']
if 'succeedhandle_login' in c:
flag = True
return flag
#使用例子：基本参数登陆
user='xxx'
pwd='xxx'
dom='http://www.discuz.net/' #另一个测试网站：http://bbs.jb51.net/
try:
flag = login_dz(username=user,password=pwd,domain=dom)
print(flag)
except Exception,e:
print('Error:',e)
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