php SSH2 执行远程命令和交互式命令

class SSH2
{
    /**
     * @var $host [远程主机ip或域名 host]
     */
    protected $host;

    /**
     * @var $port [端口 port]
     */
    protected $port;

    /**
     * @var $name [用户名 username]
     */
    protected $username;

    /**
     * @var $pwd [密码 password]
     */
    protected $pwd;

    /**
     * @var Resource [连接服务器资源]
     */
    protected $conn;

    /**
     * @var Resource [返回得资源数据流]
     */
    protected $stream;
    /**
     * @var Resource [返回得资源错误信息]
     */
    protected $error;

    /**
     * SSH2 constructor.
     * @throws \Exception
     */
    public function __construct()
    {
        if(!extension_loaded("ssh2")){
            throw new \Exception("请安装ssh2扩展！");
        }


    }

    /**
     * @param string $host
     * @return SSH2
     * @throws \Exception
     */
    public function setHost(string $host): self
    {

        $result = preg_match("/\w.*\.([a-z0-9].+\.{1,})[a-zA-Z]{1,6}$/", $host);

        if(!$result && !filter_var($host,FILTER_VALIDATE_IP,FILTER_FLAG_IPV4))
            throw new \Exception("host is illegal");


        $this->host = $host;
        return $this;
    }

    /**
     * @param int $port
     * @return SSH2
     * @throws \Exception
     */
    public function setPort(int $port): self
    {
        if($port > 65535 || $port <= 0)
            throw new \Exception("port value should between 1 and 65535");

        $this->port = $port;
        return $this;
    }

    /**
     * @param string $username
     * @return SSH2
     */
    public function setUsername(string $username): self
    {
        $this->username = $username;
        return $this;
    }

    /**
     * @param string $password
     * @return SSH2
     */
    public function setPassword(string $password): self
    {
        $this->pwd = $password;
        return $this;
    }

    /**
     * @param string $username
     * @param string $pwd
     * @param string $host
     * @param int $port
     * @return SSH2
     * @throws \Exception
     */
    public function connect(string $username = '', string $pwd = '', string $host = '', int $port = 0): self
    {

        if(!empty($username) ) $this->setUsername($username);
        if(!empty($pwd)) $this->setPassword($pwd);
        if(!empty($host) ) $this->setHost($host);
        if(!empty($port)) $this->setPort($port);

        $this->conn = ssh2_connect($this->host, $this->port);

        if(!$this->conn) throw new \Exception('connection to remote server failed!');


        $result = ssh2_auth_password($this->conn, $this->username, $this->pwd);

        if(!$result) throw new \Exception("username or password is illegal!");

        return $this;
    }


    /**
     * @param string $command
     * @param string $conn
     * @return SSH2
     */
    public function exec(string $command,$conn = ''): self
    {

        if(!empty($conn)) $this->conn = $conn;
        $this->stream = ssh2_exec($this->conn, $command);

        return $this;
    }

    /**
     * 获取交互式shell
     * @param string $conn
     * @return $this
     */
    public function shell($conn = '')
    {
        if(!empty($conn)) $this->conn = $conn;

        $this->stream = ssh2_shell($this->conn, 'xterm');

        return $this;
    }

    /**
     * 执行交互式命令
     * @param string $command
     * @param string $separator
     * @return $this
     */
    public function execInteractive(string $command, $separator = "\n")
    {

        $commands = explode($separator, $command);

        foreach ($commands as $item) {
            fwrite($this->stream, $item . PHP_EOL);
        }

        return $this;
    }

    /**
     * 获取最终结果
     * @return bool|string
     * @throws \Exception
     */
    public function get()
    {
        stream_set_timeout($this->stream, 15);
        stream_set_blocking($this->stream,true);

        $err = stream_get_contents(ssh2_fetch_stream($this->stream, SSH2_STREAM_STDERR));

        if( !empty($err)) $result =  'Error：' . $err;
        else $result = stream_get_contents($this->stream);

        return $result;
    }


    /**
     * @return Resource
     */
    public function getConnect()
    {
        return $this->conn;
    }

    /**
     * @param $name
     * @param $value
     * @return SSH2
     */
    /*public function __set($name, $value): self
    {
        if(property_exists($this, $name))
            $this->{$name} = $value;

        return $this;
    }*/


    /**
     * @param $name
     * @return mixed
     * @throws \Exception
     */
    public function __get($name)
    {
        if(property_exists($this, $name))
            return $this->{$name};
        else
            throw new \Exception("property does not exist!");

    }
}

 

转载于:https://my.oschina.net/u/3054299/blog/3095357