phptelnet for cakephp

最近有用到在PHP telnet到远程的服务器上校验用户密码的状态,在网上扒了一个 telnet的类
然后改在cakephp上使用,多加了一些功能,比如登录的时候要输入域,还有判断登录成功的字符串.还可以自定义端口号
更新:
11.25
while (!$s['time_out'] && $s['unread_bytes']); //多加一个超时判断,这样就比较快了


测试环境:
OSX 10.5.5
Xampp(apache2.2 php5.2.6 mysql5.0.1)
telnetServer 华为,爱立信的某些告警交换机, Solaris5.9
Bug:
不支持Telnet到Windows
telnet到windows自带的Telnet Server有问题,总是不能登录.大概问题是返回的结果需要进行一定的协议处理.

app/controllers/components/php_telnet.php

/*
PHPTelnet 1.1
by Antone Roundy
adapted from code found on the PHP website
public domain
*/
/*
 * PHPTelnet for cakephp components
 * by Rikugun
 * v5[dot]rikugun[at]gmail[dot]com
 *
 */
class PhpTelnetComponent extends Object {
    //显示连接错误
    var $show_connect_error=1;
    //使用usleep来暂停程序
    var $use_usleep=0;	// change to 1 for faster execution
    // don't change to 1 on Windows servers unless you have PHP 5
    //暂停时间
    var $sleeptime=125000;
    //登录后等待时间
    var $loginsleeptime=1000000;

    var $fp=NULL;
    //登录提示字符串
    var $loginprompt;
    //最后抓到的字符串
    var $last_string;

    var $conn1;
    var $conn2;

    /*
     * 连接返回结果
    0 = success
    1 = couldn't open network connection
    2 = unknown host
    3 = login failed
    4 = PHP version too low
     * $domain为-1时直接输入回车
    */
    function Connect($server,$user,$pass,$port=23,$domain='') {
        $rv=0;
        //校验PHP版本 >=4.3.0
        $vers=explode('.',PHP_VERSION);
        $needvers=array(4,3,0);
        $j=count($vers);
        $k=count($needvers);
        if ($k<$j) $j=$k;
        for ($i=0;$i<$j;$i++) {
            if (($vers[$i]+0)>$needvers[$i]) break;
            if (($vers[$i]+0)<$needvers[$i]) {
                $this->ConnectError(4);
                return 4;
            }
        }

        $this->Disconnect();
        //处理hostname 域名转IP
        if (strlen($server)) {
            if (preg_match('/[^0-9.]/',$server)) {
                $ip=gethostbyname($server);
                if ($ip==$server) {
                    $ip='';
                    $rv=2;
                }
            } else $ip=$server;
        } else $ip='127.0.0.1';

        if (strlen($ip)) {
            $this->fp=fsockopen($ip,$port);
            if ($this->fp) {
                fputs($this->fp,$this->conn1);
                $this->Sleep();

                fputs($this->fp,$this->conn2);
                $this->Sleep();
                $this->GetResponse($r);
                $r=explode("\n",$r);
                $this->loginprompt=$r[count($r)-1];
                    fputs($this->fp,"$user\r");
                    $this->Sleep();

                    fputs($this->fp,"$pass\r");
                    if ($domain) {
                        if ($domain==-1) {
                        $domain='';
                    }
                        $this->Sleep();
                        fputs($this->fp,"$domain\r");
                }
                    if ($this->use_usleep) usleep($this->loginsleeptime);
                    else sleep(1);
                    $this->GetResponse($r);
                    $this->last_string = $r;
                    $r=explode("\n",$r);
                    if (($r[count($r)-1]=='')||($this->loginprompt==$r[count($r)-1])) {
                        $rv=3;
                        $this->Disconnect();
                    }
            } else $rv=1;
        }

        if ($rv) $this->ConnectError($rv);
        return $rv;
    }

    function Disconnect($exit=1) {
        if ($this->fp) {
            if ($exit) $this->DoCommand('exit',$junk);
            fclose($this->fp);
            $this->fp=NULL;
        }
    }
    //执行命令
    function DoCommand($c,&$r) {
        if ($this->fp) {
            fputs($this->fp,"$c\r");
            $this->Sleep();
            $this->GetResponse($r);
            $this->last_string = $r;
            $r=preg_replace("/^.*?\n(.*)\n[^\n]*$/","$1",$r);
        }
        return $this->fp?1:0;
    }
    //获取响应
    function GetResponse(&$r) {
        $r='';
        do {
            $r.=fread($this->fp,1000);
            $s=socket_get_status($this->fp);
        } while (!$s['time_out'] && $s['unread_bytes']); //多加一个超时判断,这样就比较快了
    }

    function Sleep() {
        if ($this->use_usleep) usleep($this->sleeptime);
        else sleep(1);
    }
/**
 * cakephp components初始化函数
 *
 * @return return
 * @author rikugun
 * @param  param
 **/
    function initialize(&$controller) {
        ;
    }
    function startup(&$controller) {
        $this->conn1=chr(0xFF).chr(0xFB).chr(0x1F).chr(0xFF).chr(0xFB).
        chr(0x20).chr(0xFF).chr(0xFB).chr(0x18).chr(0xFF).chr(0xFB).
        chr(0x27).chr(0xFF).chr(0xFD).chr(0x01).chr(0xFF).chr(0xFB).
        chr(0x03).chr(0xFF).chr(0xFD).chr(0x03).chr(0xFF).chr(0xFC).
        chr(0x23).chr(0xFF).chr(0xFC).chr(0x24).chr(0xFF).chr(0xFA).
        chr(0x1F).chr(0x00).chr(0x50).chr(0x00).chr(0x18).chr(0xFF).
        chr(0xF0).chr(0xFF).chr(0xFA).chr(0x20).chr(0x00).chr(0x33).
        chr(0x38).chr(0x34).chr(0x30).chr(0x30).chr(0x2C).chr(0x33).
        chr(0x38).chr(0x34).chr(0x30).chr(0x30).chr(0xFF).chr(0xF0).
        chr(0xFF).chr(0xFA).chr(0x27).chr(0x00).chr(0xFF).chr(0xF0).
        chr(0xFF).chr(0xFA).chr(0x18).chr(0x00).chr(0x58).chr(0x54).
        chr(0x45).chr(0x52).chr(0x4D).chr(0xFF).chr(0xF0);
        $this->conn2=chr(0xFF).chr(0xFC).chr(0x01).chr(0xFF).chr(0xFC).
        chr(0x22).chr(0xFF).chr(0xFE).chr(0x05).chr(0xFF).chr(0xFC).chr(0x21);
    }

    function ConnectError($num) {
        if ($this->show_connect_error) switch ($num) {
            case 1: echo '<br />[PHP Telnet] <a href="http://www.geckotribe.com/php-telnet/errors/fsockopen.php">Connect failed: Unable to open network connection</a><br />'; break;
                case 2: echo '<br />[PHP Telnet] <a href="http://www.geckotribe.com/php-telnet/errors/unknown-host.php">Connect failed: Unknown host</a><br />'; break;
                    case 3: echo '<br />[PHP Telnet] <a href="http://www.geckotribe.com/php-telnet/errors/login.php">Connect failed: Login failed</a><br />'; break;
                        case 4: echo '<br />[PHP Telnet] <a href="http://www.geckotribe.com/php-telnet/errors/php-version.php">Connect failed: Your server\'s PHP version is too low for PHP Telnet</a><br />'; break;
                        }
                    }
                }

在controller中调用

class somecontroller extends AppContronller{
var $components =array('PhpTelnet');

function someAction($id){
//获取实例
$swer = $this->Sw->findById($id);
//不显示默认错误信息
$this->PhpTelnet->show_connect_error=0;
$ret = $this->PhpTelnet->Connect(long2ip($swer['ip']), $swer['username'], $swer['password'], $swer['port'], $swer['domain']);
        switch ($ret) {
            case 0: //连接成功
                if (strstr($this->PhpTelnet->last_string,$swer['success_code'])) {
                    $swer['status']=1;
                    $retVal['success']=true;
                    $retVal['msg']='登录成功';
                    break;
                }
                $ret=3;
            case 1:
//                $swer['status']=0;
                $retVal = '无法连接到网络';
                break;
            case 2:
                $swer['status']=0;
                $retVal['msg'] = '无法连接到BSC';
                break;
            case 3:
                $swer['status']=2;
                $retVal['msg'] = '登录失败';
                break;
            case 4:
                $retVal['msg']='PHP版本太低';
                break;
        }
//其它操作可以用 $this->PhpTelnet->DoCommand($comm.$result)
}
}