用php編寫Nagios插件

最近寫了一個檢測網站是否能正常登陸的php腳本，并可以作為Nagios插件使用

Nagios插件是Nagios提供的一種可通過擴充方式部署的元件，該插件支援Java、C\C++、php等多種語言開發，操作員通過修改配置檔案和相應參數，就能很友善地将該插件內建到Nagios中，實作對目标系統的監控。

Nagios插件程式可以提供兩個傳回值，一個是插件的退出狀态碼，一個是插件在控制台列印的第一行資料。退出狀态碼可以被Nagios主程式作為判斷被監控系統服務狀态的依據，控制台列印的第一行資料可以被Nagios主程式作為被監控系統服務狀态的補充說明。

Nagios主程式可識别的狀态碼和說明如下：

狀态碼     說明

0     OK

1     WARNING

2     CRITICAL

3     UNKOWN

********下面是php腳本的内容***********

#!/usr/bin/php

if($argc < 3){

echo 'php '.$argv[0].'  ‘.PHP_EOL;

exit(1);

}

class http{

   private $_curl;

   private $_user_agent;

   private $_cookie;

   private $_getopt = array();

   private $_postopt = array();

   function __construct(){

       $this->_user_agent = ‘Mozilla/5.0 (Windows NT 6.1; rv:15.0) Gecko/20100101 Firefox/15.0.1′;

       $this->_cookie = ‘/tmp/cookie.txt’;

   }

   public function get($url){

       $this->_getopt = array(CURLOPT_CONNECTTIMEOUT => 20,

                              CURLOPT_URL => $url,

                              CURLOPT_HEADER => 0,

                              CURLOPT_NOBODY => 1,

                              //CURLOPT_COOKIEJAR => $this->_cookie,

                              //CURLOPT_COOKIEFILE => $this->_cookie,

                              CURLOPT_USERAGENT => $this->_user_agent,

                              CURLOPT_RETURNTRANSFER => 1);

       $this->_curl = curl_init();

       curl_setopt_array($this->_curl, $this->_getopt);

       $data = curl_exec($this->_curl);

       $http_code = curl_getinfo($this->_curl, CURLINFO_HTTP_CODE);

       $time_total = curl_getinfo($this->_curl, CURLINFO_TOTAL_TIME);

       $retval = $http_code.’,’.$time_total;

       curl_close($this->_curl);

       return $retval;

   public function post($url,Array $post){

       $this->_postopt = array(CURLOPT_CONNECTTIMEOUT => 20,

                               CURLOPT_URL => $url,

                               CURLOPT_HEADER => 0,

                                   CURLOPT_COOKIEJAR => $this->_cookie,

                               CURLOPT_POST => 1,

                               CURLOPT_POSTFIELDS => http_build_query($post),

                               CURLOPT_USERAGENT => $this->_user_agent,

                               CURLOPT_RETURNTRANSFER => 1);

       curl_setopt_array($this->_curl, $this->_postopt);

       return $data;

   public function rpost($url){

                                                               CURLOPT_URL => $url,

                                                               CURLOPT_HEADER => 1,

                                                               CURLOPT_NOBODY => 1,

                                                               CURLOPT_COOKIEFILE => $this->_cookie,

                                                               CURLOPT_USERAGENT => $this->_user_agent,

                                                               CURLOPT_RETURNTRANSFER => 1);

       $time_namelookup = curl_getinfo($this->_curl, CURLINFO_NAMELOOKUP_TIME);

       $time_connect = curl_getinfo($this->_curl, CURLINFO_CONNECT_TIME);

       $time_starttransfer = curl_getinfo($this->_curl, CURLINFO_STARTTRANSFER_TIME);

       $size_download = curl_getinfo($this->_curl, CURLINFO_SIZE_DOWNLOAD);

       $speed_download = curl_getinfo($this->_curl, CURLINFO_SPEED_DOWNLOAD);

       //$retval = date(‘Y-m-d_H:i:s’).’,’.$http_code.’,’.$time_namelookup.’,’.$time_connect.’,’.$time_starttransfer.’,’.$time_total.’,’.$size_download.’,’.$speed_download.’,’.$url;

class ciwong{

private $_username;

private $_passwd;

private $_http;

private $_sid;

function __construct($username = ’3sdf’, $passwd = ‘dfser’){

$this->_username = $username;

$this->_passwd = $passwd;

$this->_http = new http();

public function postLogin($url){

$post_url = ‘http://passport.ciwong.com/signin’;

$post['username'] = $this->_username;

$post['password'] = $this->_passwd;

$post['returnUrl'] = $url;

$data = $this->_http->post($post_url, $post);

$data = $this->_http->rpost($url);

return $data;

public function getUrl($url){

$data = $this->_http->get($url);

$type = $argv[1];

$url = $argv[2];

$username = ’3244′;

$passwd = ’3423′;

$status_ok = 0;

$status_warning = 1;

$cw = new ciwong($username, $passwd);

switch($type){

case ‘get’:

$retval = $cw->getUrl($url);

       list($http_status, $time_total) = explode(‘,’, $retval);

       if ($http_status==200 || $http_status==301 || $http_status==302){

           echo “HTTP OK: Status line output is \”$http_status\” – $time_total second response time\n”;

           exit($status_ok);

       }else{

           echo “HTTP WARNING: Status line output is \”$http_status\” – $time_total second response time\n”;

           exit($status_warning);

       }

break;

case ‘post’:

$retval = $cw->postLogin($url);

       if($http_status==200 || $retval==301 || $retval==302){

default:

       echo ‘php ‘.$argv[0].’  ‘.PHP_EOL;

       exit(1);

***********************over*******************************