PHP模块之ssh2
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。
libssh: https://www.libssh2.org/
ssh2: https://pecl.php.net/package/ssh2
[安装]
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 https://pecl.php.net/get/ssh2-1.1.2.tgz cd ssh2-0.11.3 phpize ./configure —with-ssh2 && make && make install
ubuntu安装:
apt-get install libssh2-1-dev libssh2-php 会直接安装, 不需要修改PHP配置信息
[修改配置文件]
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。
查看是否加载了ssh2
php -m|grep ssh2
ssh2
[使用]
SSH2连接有两种方式,分别是用户名密码,ssh密钥形式。
1.用户名和密码
$connection = ssh2_connect("192.168.6.222",22); if (ssh2_auth_password($connection,"veno","ubuntu")) { echo "Authentication Successful! "; }else{ die("Authentication Failed..."); }
2.ssh密钥
v$connection = ssh2_connect('192.168.6.222', 22, array('hostkey'=>'ssh-rsa')); if (ssh2_auth_pubkey_file($connection, 'root', '/root/.ssh/id_rsa.pub', '/root/.ssh/id_rsa')) { echo "Public Key Authentication Successful\n"; } else { echo ('Public Key Authentication Failed'); }
密钥生成方式:
1 2 3 4 5 | ssh-keygen -t rsa 生成后的公钥: ~/.ssh/id_rsa.pub 然后使用ssh-copy-id的方式添加到需要免密登录的服务器上 |
3.远程copy文件
远程服务器文件copy到本地:
bool ssh2_scp_recv ( resource 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 local_file, string 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');
4.执行远程服务器上的命令并取返回值
resource ssh2_exec( resource command [, string env [, 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($stream); ssh2_exec() 是会有返回值的,而它的返回值是无格式的(无换行),但它是以stream(流的形式返回), 显示出来,可这样进行流处理: stream_set_blocking($stream, true); echo :stream_get_contents($stream);
DEMO:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | <?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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