版本更新发布WEB化(3)_小插曲自定义请求saltAPI的类

安装了saltAPI后就可以在任何一台服务器上调用saltAPI让saltstack执行相关的操作。之前用PHP和python写过相关的调用类，如果有兴趣可以移步以下文章:
《用PHP实现salt-api调用》和《用Python实现salt-api调用》。
思路都是一样的，不过这两篇代码不够优雅。下面再上一个后来用python用写的比较优雅的一个类，看上去会简洁美观很多。

#!/usr/bin/env python 
#coding=utf-8 
# import urllib2, urllib, json, re 


class saltAPI: 
  def __init__(self): 
    self.__url = 'https://saltAPI监控的地址和端口如：192.168.192.168:8000' 
    self.__user = '调用saltAPI时的用户名' 
    self.__password = '调用saltAPI时的密码' 
    self.__token_id = self.salt_login() 
  
  def salt_login(self):
    params = {'eauth': 'pam', 'username': self.__user, 'password': self.__password}
    encode = urllib.urlencode(params) 
    obj = urllib.unquote(encode) 
    headers = {'X-Auth-Token':''} 
    url = self.__url + '/login' 
    req = urllib2.Request(url, obj, headers) 
    opener = urllib2.urlopen(req) 
    content = json.loads(opener.read()) 
    try: 
      token = content['return'][0]['token'] 
      return token 
    except KeyError: 
      raise KeyError 
  
  def postRequest(self, obj, prefix='/'):
    url = self.__url + prefix 
    headers = {'X-Auth-Token' : self.__token_id} 
    req = urllib2.Request(url, obj, headers) 
    opener = urllib2.urlopen(req) 
    content = json.loads(opener.read()) 
    return content['return'] 
    
  def saltCmd(self, params): 
    obj = urllib.urlencode(params) 
    obj, number = re.subn("arg\\d", 'arg', obj) 
    res = self.postRequest(obj) 
    return res 
    
def main():
  # 以下是用来测试saltAPI类的部分
  sapi = saltAPI()
  params = {'client':'local', 'fun':'test.ping', 'tgt':'某台服务器的key'} 
  # params = {'client':'local', 'fun':'test.echo', 'tgt':'某台服务器的key', 'arg1':'hello'}
  # params = {'client':'local', 'fun':'test.ping', 'tgt':'某组服务器的组名', 'expr_form':'nodegroup'} 
  test = sapi.saltCmd(params) 
  print test 

if __name__ == '__main__': 
  main()