#!/usr/bin/env python# -*- encoding: utf8 -*-#导入模块，urllib2是一个模拟浏览器HTTP方法的模块import jsonimport urllib2import sysimport smtplibfrom urllib2 import Request,urlopen,URLError,HTTPError#url and url header#zabbix的API地址、用户名、密码、这里修改为实际的参数zabbix_url="http://ip/api_jsonrpc.php"zabbix_header = {"Content-Type":"application/json"}zabbix_user = "zabbix"zabbix_pass = "admin"auth_code = ""#auth user and password#用户认证信息的部分，最终的目的是得到一个SESSIONID#下面是生成一个JSON格式的数据：用户名和密码def auto_login():    auth_data = json.dumps(        {            "jsonrpc" : "2.0",            "method" : "user.login",            "params" :                      {                      "user":zabbix_user,                      "password":zabbix_pass                      },            "id":0        })# create request object    request = urllib2.Request(zabbix_url,auth_data)    for key in zabbix_header:        request.add_header(key,zabbix_header[key])#认证和获取SESSION ID    try:        result = urllib2.urlopen(request)#对于认证出错的处理    except HTTPError,e:        print ‘The server couldn\‘t fulfill the request, Error code: ‘,e.code    except URLError,e:        print ‘We failed to reach a server.Reason: ‘,e.reason    else:        response = json.loads(result.read())        return responseres=auto_login()#判断SESSIONID是否在返回的数据中def check_sessionid():   if ‘result‘ in res:  # if ‘result‘ in auto_info:       auth_code = res[‘result‘]   else:       print res[‘error‘][‘data‘]   json_data ={       "method":"host.get",       "params":{                 "output":"extend",       }   }   json_base={        "jsonrpc":"2.0",        "auth":auth_code,        "id":1   }   json_data.update(json_base)#用得到的SESSIONID去验证，获取主机的信息(用http.get方法)   if len(auth_code) == 0:       sys.exit(1)   host=[]   if len(auth_code) != 0:       get_host_data = json.dumps(json_data)       #create request object       request = urllib2.Request(zabbix_url,get_host_data)       for key in zabbix_header:               request.add_header(key,zabbix_header[key])        #get host list       try:               result = urllib2.urlopen(request)       except URLError as e:               if hasattr(e,‘reason‘):                       print ‘We failed to reach a server.‘                       print ‘Reason: ‘,e.reason               elif hasattr(e,‘code‘):                       print ‘The server could not fulfill the request.‘                       print ‘Error code: ‘,e.code       else:               response = json.loads(result.read())               result.close()                #将所有的主机信息显示出来              # print response   for i in response[‘result‘]:           #print i            if unicode(str(i[‘host‘][-1])).isdecimal() == True:                 H= i[‘host‘]                 host.append(H)   return hostif __name__ == "__main__":    return_host=check_sessionid()    print return_host    print len(return_host)