python 3.x 163邮箱登陆，邮件读取

import  urllib.request
import  urllib.parse
import  http.cookiejar,re

opener = None

# 带Cookie访问
def openurl(parms):
  global opener
  if opener == None:
      #cookie设置
      cj =  http.cookiejar.CookieJar()
      opener = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(cj))
  ret = opener.open(parms)
  return ret


def login_163(**parms):
  #初始化
  parms_key = ['domain','password','username']
  arg = {}
  for key in parms_key:
    if key in parms:
      arg[key] = parms[key]
    else:
      arg[key] = ''
  #获取syscheckcode
  pre_login = arg['domain']
  html = openurl(pre_login).read().decode('utf-8')

  patt = re.compile(r'.*?name=syscheckcode.*?value="(.*?)".*?')
  syscheckcode = patt.search(html)
  if not syscheckcode:
    raise Exception('GET syscheckcode Fail!')
  syscheckcode = syscheckcode.group(1)
 
  #登陆
  postdata = {
   'syscheckcode':syscheckcode,
   'password':arg['password'],
   'username':arg['username'],
    }
  postdata = urllib.parse.urlencode(postdata)
  postdata = postdata.encode('utf-8')
  req = urllib.request.Request(
    url= arg['domain'],
    data=postdata
    )
  html = openurl(req).read().decode('utf-8')

  thisurl  = 'http://reg.163.com/Main.jsp?username=' + arg['username']
  html = openurl(thisurl).read().decode('utf-8')
  # 获取随机key
  thisurl = 'http://entry.mail.163.com/coremail/fcg/ntesdoor2?verifycookie=1&lightweight=1&from=urs'
  
  html = openurl(thisurl).read().decode('utf-8')

  patt = re.compile(r'.*[email protected]&sid=(.*?)&from.*?')
  sid = patt.search(html);
  sid = sid.group(1)
  
  # 获取sid
  thisurl = 'http://mail.163.com/js6/main.jsp?sid=' + sid
  html = openurl(thisurl).read().decode('utf-8')
  thisurl = 'http://mail.163.com/js6/s?sid=' + sid + '&func=mbox:listMessages&topNav_mobileIcon_show=1&TopTabReaderShow=1&TopTabLofterShow=1'
 
  
  # 获取邮件key --- 可以读取看看，实际上是一个类似xml的表，所有的邮件都在这里，我们需要的是key，这里是抽取的第一封邮件的key
  html = openurl(thisurl).read().decode('utf-8')

  patt = re.compile(r'.*?name="id">(.*?).*?')
  key =  patt.search(html);
  key = key.group(1)
  
  # 获取邮件内容
  thisurl = 'http://mail.163.com/js6/read/readhtml.jsp?mid=' + key
  html = openurl(thisurl).read().decode('utf-8')
  
  # 测试输出
  print(html)
  # 假设返回假,,这个验证可以最后加上
  flag = True
  #if 'succeedhandle_login' in html:
    #flag = True
  return flag
 

# 这里是开始，我懒得缩进了 if __name__ == '__main__':
# 用户名 及 密码
while True:
  user = input('input your username:')
  pwd = input('input your password:')
  if len(user) != 0 and len(pwd) != 0:
    break
  print('输入错误')



# 测试网站
dom='https://reg.163.com/logins.jsp'
try:
  flag = login_163(username=user,password=pwd,domain=dom)
  if not flag:
    print('读取失败!')
    exit(0)
  else:
    print('读取成功')
  
except Exception as e:
   print('Error:',e)

反正大致过程就是上面那样，，，很标准的 post登陆，之后 163 的页面比较特殊，具体可以自己去试试。

那个key页面是抓包之后找到的，通过那个key就能获得每一封邮件了。