Python实现获取域名所用服务器的真实IP

class JianKong():
  '''查询IDC信息，封ip和过白名单'''
  def __init__(self):
    pass
  @classmethod
  def ip_verify(cls,str):
    '验证IP地址规范'
    pattern=re.compile('(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])')
    s=pattern.findall(str)
    if len(s)>0:
      ip=s[0][0]+'.'+s[0][1]+'.'+s[0][2]+'.'+s[0][3]
      return ip
    else:
      print 'IP格式不正确'#弹窗提醒
      return ''
  @classmethod
  def domain_verify(cls,domainStr):
    '验证域名规范,返回合法域名列表'
    domainList=[]
    file=open('c:\domain.txt','r')
    domainType=file.readlines()
    #去重
    domainType=list(set(domainType))
    #print domainType
    file.close()
    #file=['com','ac','com.cn','net'+'']
    for line in domainType:
      #文件中动态读取每个顶级域名进行匹配
      line=line.strip()
      pattern=re.compile('([a-z0-9][a-z0-9\-]*?\.'+line+')(?:\s|$)+',re.S)
      #例如[a-z0-9][a-z0-9\-]*?\.com.cn(?:\s|$)+ 中(?:\s|$)表示域名后缀后面必须是空白符或者字符结束(?:)表示括号不用于分组功能
      #防止.com.cn先匹配到.com即停止匹配导致错误，或者匹配到.comc多了字符
      result=pattern.findall(domainStr)
      if len(result)>0:
        #正确结果添加到返回列表
        domainList=domainList+result
    #去重
    domainList=list(set(domainList))
    newList=[]
    for d in domainList:
      if d not in domainType and d+'\n' not in domainType:
        newList.append(d)
           
    return newList
  @classmethod
  def getDomainType(cls):
    '从工信部网站获取所有合法域名后缀'
    file=open('c:/domain.txt','w')
    p=re.compile('class=\"by2\">\.(.*?)\ </td>', re.S)
    for i in range(1,23):
      data='domainName=&domainBlur=0&page.pageSize=20&pageNo='+str(i)+'&jumpPageNo='+str(i)
      header={'Host':'www.miitbeian.gov.cn','Origin':'http://www.miitbeian.gov.cn','User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 UBrowser/5.5.6125.14 Safari/537.36','Referer':'http://www.miitbeian.gov.cn/basecode/query/queryDomain.action;jsessionid=HSTRWpLZbR0cX4vFkDpnpbNBYyRl4GwW1fxpyhdyc0fcfhkvJTBV!1139295987'}
      url='http://www.miitbeian.gov.cn/basecode/query/queryDomain.action;jsessionid=HSTRWpLZbR0cX4vFkDpnpbNBYyRl4GwW1fxpyhdyc0fcfhkvJTBV!1139295987'
      request=urllib2.Request(url,data,header)
      response=urllib2.urlopen(request)
      recv=response.read()
      s=p.findall(recv)
      #print s
      #去重
      s=list(set(s))
      for y in s:
        file.write(y+'\n')
        file.flush()
        #print str(i)+' '+y
    file.close()
    print '完毕'#弹窗完成