php远程copy以及执行命令

爱被打了一巴掌 2022-03-19 11:26 276阅读 0赞

**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 ###

<?php
    echo "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/>";

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