// 注意這里只是為了介紹ftp ,并沒有做驗(yàn)證 ;   

class ftp{

   

  // 初始配置為NULL

  private $config =NULL ;

  // 連接為NULL 

  private $conn = NULL;

   

  public function init($config){

   $this->config = $config;  

  }

   

  // ftp 連接 

  public function connect(){

    return $this->conn = ftp_connect($this->config['host'],$this->config['port'])); 

  }

   

   

  // 傳輸數(shù)據(jù) 傳輸層協(xié)議,獲得數(shù)據(jù) true or false 

 public function download($remote, $local,$mode = 'auto'){

   return $result = @ftp_get($this->conn, $localpath, $remotepath, $mode);

 }

  

 // 傳輸數(shù)據(jù) 傳輸層協(xié)議,上傳數(shù)據(jù) true or false 

 public function upload($remote, $local,$mode = 'auto'){

   return $result = @ftp_put($this->conn, $localpath, $remotepath, $mode);

 }

  

  

   // 刪除文件 

  public function remove($remote){

   return $result = @ftp_delete($this->conn_id, $file);

  }

  

   

}    

 

 

 

// 使用 

$config = array(

      'hostname' => 'localhost',

   'username' => 'root',

   'password' => 'root',

   'port' => 21

 

) ;

  

$ftp = new Ftp();

$ftp->connect($config);

$ftp->upload('ftp_err.log','ftp_upload.log');

$ftp->download('ftp_upload.log','ftp_download.log');

 

 

 

/*根據(jù)上面的三個(gè)協(xié)議寫出基于ssh 的ftp 類

我們知道進(jìn)行身份認(rèn)證的方式有兩種：公鑰；密碼 ;

(1) 使用密碼登陸

(2) 免密碼登陸也就是使用公鑰登陸 

 

*/

 

class sftp{

   

   

  // 初始配置為NULL

  private $config =NULL ;

  // 連接為NULL 

  private $conn = NULL;

 

   

  // 是否使用秘鑰登陸 

   private $use_pubkey_file= false;

   

  // 初始化

  public function init($config){

    $this->config = $config ; 

  }

   

   

  // 連接ssh ,連接有兩種方式(1) 使用密碼

  // (2) 使用秘鑰 

  public function connect(){

     

    $methods['hostkey'] = $use_pubkey_file ? 'ssh-rsa' : [] ; 

    $con = ssh2_connect($this->config['host'], $this->config['port'], $methods);

    //(1) 使用秘鑰的時(shí)候 

    if($use_pubkey_file){

    // 用戶認(rèn)證協(xié)議

       $rc = ssh2_auth_pubkey_file(

        $conn,

        $this->config['user'],

        $this->config['pubkey_file'],

        $this->config['privkey_file'],

        $this->config['passphrase']) 

      );

    //(2) 使用登陸用戶名字和登陸密碼

    }else{

      $rc = ssh2_auth_password( $conn, $this->conf_['user'],$this->conf_['passwd']);

    

    }

     

    return $rc ; 

  }

   

   

  // 傳輸數(shù)據(jù) 傳輸層協(xié)議,獲得數(shù)據(jù)

   public function download($remote, $local){

      

     return ssh2_scp_recv($this->conn_, $remote, $local);

   }

    

   //傳輸數(shù)據(jù) 傳輸層協(xié)議,寫入ftp服務(wù)器數(shù)據(jù)

   public function upload($remote, $local,$file_mode=0664){

     return ssh2_scp_send($this->conn_, $local, $remote, $file_mode);

      

   }

    

   // 刪除文件 

   public function remove($remote){

      $sftp = ssh2_sftp($this->conn_);

      $rc = false;

 

  if (is_dir("ssh2.sftp://{$sftp}/{$remote}")) {

      $rc = false ;

       

      // ssh 刪除文件夾

   $rc = ssh2_sftp_rmdir($sftp, $remote);

      } else {

     // 刪除文件

        $rc = ssh2_sftp_unlink($sftp, $remote);

      }

      return $rc;

       

    }

      

  

  

   

}

 

 

$config = [

 "host"   => "192.168.1.1 ",  // ftp地址

 "user"   => "***", 

 "port"   => "22",

 "pubkey_path" => "/root/.ssh/id_rsa.pub", // 公鑰的存儲(chǔ)地址

 "privkey_path" => "/root/.ssh/id_rsa",   // 私鑰的存儲(chǔ)地址

];

 

$handle = new SftpAccess();

$handle->init($config);

$rc = $handle->connect();

$handle->getData(remote, $local);