Python获取当前公网ip并自动断开宽带连接实例代码

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#!coding: cp936 
import win32ras 
import time,os 
 
def Connect(dialname, account, passwd): 
  dial_params = (dialname, '', '', account, passwd, '') 
  return win32ras.Dial(None, None, dial_params, None) 
 
def DialBroadband(): 
  dialname = '宽带连接' #just a name 
  account = '********' 
  passwd = '****************' 
  try: 
    #handle is a pid, for disconnect or showipadrress, if connect success return 0. 
    #account is the username that your ISP supposed, passwd is the password. 
    handle, result = Connect(dialname, account, passwd) 
    if result == 0: 
      print "Connection success!" 
      return handle, result 
    else: 
      print "Connection failed, wait for 5 seconds and try again..." 
      time.sleep(5) 
      DialBroadband()   
  except: 
    print "Can't finish this connection, please check out." 
    return 
 
def Disconnect(handle): 
  if handle != None: 
    try: 
      win32ras.HangUp(handle) 
      print "Disconnection success!" 
      return "success" 
    except: 
      print "Disconnection failed, wait for 5 seconds and try again..." 
      time.sleep(5) 
      Disconnect() 
  else: 
    print "Can't find the process!" 
    return 
 
def Check_for_Broadband(): 
  connections = [] 
  connections = win32ras.EnumConnections() 
  if(len(connections) == 0): 
    print "The system is not running any broadband connection." 
    return 
  else: 
    print "The system is running %d broadband connection." % len(connections) 
    return connections 
 
def ShowIpAddress(handle): 
  print win32ras.GetConnectStatus(handle) 
  data = os.popen("ipconfig","r").readlines() 
  have_ppp = 0 
  ip_str = None 
  for line in data: 
    if line.find("宽带连接")>=0: 
      have_ppp = 1 
    #if your system language is English, you should write like this: 
    #if have_ppp and line.strip().startswith("IP Address"): 
    #in othewords, replace the "IPv4 地址" to "IP Address" 
    if have_ppp and line.strip().startswith("IPv4 地址"): 
      ip_str = line.split(":")[1].strip() 
      have_ppp = 0 
      print ip_str 
 
#get my ipaddress anf disconnect broadband connection. 
def main(): 
  data = Check_for_Broadband() 
  #if exist running broadband connection, disconnected it. 
  if data != None: 
    for p in data: 
      ShowIpAddress(p[0]) 
      if(Disconnect(p[0]) == "success"): 
        print "%s has been disconnected." % p[1] 
      time.sleep(3) 
  else: 
    pid, res = DialBroadband() 
    ShowIpAddress(pid) 
    time.sleep(3) 
    Disconnect(pid) 
  return "finsh test" 
 
test = main() 
print test