php远路copy以及执行命令_php入门

php远路copy以及执行命令

php远程copy以及执行命令

php远程copy文件以及在远程服务器中执行命令时，所用到的模块是ssh2，以后所有的操作都依据ssh2连接句柄完成。

1. SSH2模块的安装

1.1 安装需要的扩展包

wget  http://www.libssh2.org/download/libssh2-1.4.2.tar.gz
tar zxf libssh2-1.4.2.tar.gz
cd libssh2-1.4.2
./configure && make && make install

wget  http://pecl.php.net/get/ssh2-0.11.3.tgz
cd ssh2-0.11.3
phpize   (如果报错命令没有找到，apt-get install php5-dev)
./configure —with-ssh2 && make && make install

1.2 修改php配置信息

cd  /etc/php5/cgi
vim  php.ini
添加项：extension=/usr/lib/php5/20090626/ssh2.so
     ssh2.so是编译ssh2时得到的模块，上面是模块的位置。

cd  /etc/php5/cli
vim  php.ini
添加项：extension=/usr/lib/php5/20090626/ssh2.so
     ssh2.so是编译ssh2时得到的模块，上面是模块的位置。

1.3 重启web服务器

/etc/init.d/lighttpd restart

1.4 查看是否加载了ssh2

[root@localhost ~]php -m | grep ssh2
ssh2

2. SSH2模块的连接应用

SSH2连接有两种方式，分别是用户名密码，ssh密钥形式。

2.1 用户名与密码

$connection = ssh2_connect("192.168.6.222",22);
if (ssh2_auth_password($connection,"veno","ubuntu"))
{
     	 echo "Authentication Successful! ";
}else{
     	 die("Authentication Failed...");
}

2.2 ssh密钥

$connection = ssh2_connect('192.168.6.222', 22, array('hostkey'=>'ssh-rsa'));
if (ssh2_auth_pubkey_file($connection, 'root',
                          '/root/.ssh/id_rsa.pub',
                          '/root/.ssh/id_rsa'))
{
   echo "Public Key Authentication Successful\n";
} else {
 	 echo ('Public Key Authentication Failed');
}

Ps: 密钥生成：

在服务器192.168.6.229上面以root登录

#ssh-keygen

有什么提问基本上回车即可

后成的公钥在~/.ssh/id_rsa.pub

如果想在229通过密钥验证登录到222上面，则把229的公钥id_rsa.pub cp到222上面，先手动登录root，然后运行：

cat id_rsa.pub >> ~/.ssh/authorized_keys

这样就可以在229上面ssh 192.168.6.229不需要输入密码即可登录到222。上面php代码在229上面也可以通过验证。

3. SSH2模块的具体应用

通过SSH2验证通过后，得到的连接符为$connection

3.1 实现远程copy文件

远程服务器文件copy到本地:

bool ssh2_scp_recv ( resource $session, string $remote_file, string $local_file )

Ps: 接收文件时，后面文件名可以为空，如：

ssh2_scp_recv($connection, '/home/xiaozl/veno1.exe', '/home/xiaozl/')

本地文件copy到远程服务器

bool ssh2_scp_send ( resource $session, string $local_file, string $remote_file [, int $create_mode] )

Ps:发送文件时，后面的文件名不能为空，如：

ssh2_scp_send($connection, '/home/xiaozl/package.xml', '/home/xiaozl/package.xml');

3.2 执行远程服务器上的命令并取返回值

resource ssh2_exec( resource $session, string $command [, string $pty [, array $env [, int $width [, int $height [, int $width_height_type]]]]] )

在229上面执行222上的命令具体实例:

$tcmd="cd /home/veno/gateway/radiusclient;";
$tcmd.="./nastool.sh get-status app=2b1c5364-db39-c76d-842c-11d4a81d555d";
$stream = ssh2_exec($connection, $tcmd);
stream_set_blocking($stream,true);
echo stream_get_contents($stream);

附件：测试中应用到的php代码

'ssh-rsa'));
if (ssh2_auth_pubkey_file($connection, 'root',
                          '/root/.ssh/id_rsa.pub',
                          '/root/.ssh/id_rsa'))
{
  echo "Public Key Authentication Successful\n";
  //$flag=ssh2_scp_recv($connection, '/home/xiaozl/veno1.exe', '/home/xiaozl/');
  //接收时，后面文件名可以为空
  //$flag=ssh2_scp_send($connection, '/home/xiaozl/package.xml', '/home/xiaozl/package.xml');
  //发送时，后面的文件名不能为空
  //echo $flag;
  $tcmd="cd /home/veno/gateway/radiusclient;";
  $tcmd.="./nastool.sh get-status app=2b1c5364-db39-c76d-842c-11d4a81d555d";
  $stream = ssh2_exec($connection, $tcmd);
  stream_set_blocking($stream,true);
  echo stream_get_contents($stream); 
} else {
  echo ('Public Key Authentication Failed');
}
echo "
";
$connection = ssh2_connect('192.168.6.222', 22);
ssh2_auth_password($connection, 'veno', '*******');
$tcmd="cd /home/veno/gateway/radiusclient;";
  $tcmd.="./nastool.sh get-status app=2b1c5364-db39-c76d-842c-11d4a81d555d";
  $stream = ssh2_exec($connection, $tcmd);
  echo "
";
  echo "-----------------------------------------------";
  stream_set_blocking($stream,true);
  echo stream_get_contents($stream); 
  echo "-----------------------------------------------";
echo "
";

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