php远程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.gztar zxf libssh2-1.4.2.tar.gzcd libssh2-1.4.2./configure && make && make install

wget  http://pecl.php.net/get/ssh2-0.11.3.tgzcd ssh2-0.11.3phpize   (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/cgivim  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/clivim  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 ssh2ssh2

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

<?phpecho "是访问到这里来了";$connection = ssh2_connect('192.168.6.222', 22, array('hostkey'=>'ssh-rsa'));if (ssh2_auth_pubkey_file($connection, 'root',                          '/root/.ssh/id_rsa.pub',                          '/root/.ssh/id_rsa')){  echo "Public Key Authentication Successful\n";  //$flag=ssh2_scp_recv($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($stream); } else {  echo ('Public Key Authentication Failed');}echo "<br/>";$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, $tcmd);  echo "<br/>";  echo "-----------------------------------------------";  stream_set_blocking($stream,true);  echo stream_get_contents($stream);   echo "-----------------------------------------------";echo "<br/>";