Provides an object-oriented wrapper for the php ssh2 extension.
You need PHP version 5.3+ with the SSH2 extension.
Download the php-ssh library files in your project. If your project is versioned using git, the best is to add it as a submodule:
$ git submodule add https://github.com/Herzult/php-ssh.git vendor/php-ssh
Then, you must add it to your autoloader. If you have no autoloader, you can use the one provided with the library. Here is an exemple of how to use it:
<?php
require_once __DIR__.'/vendor/php-ssh/src/ClassLoader/UniversalClassLoader.php';
use ClassLoader\UniversalClassLoader;
$loader = new UniversalClassLoader();
$loader->registerNamespaces(array(
'Ssh' => __DIR__.'/vendor/php-ssh/src'
));
$loader->register();
Download composer. Install php-ssh using composer:
$ php composer.phar install
To etablish an SSH connection, you must firt define its configuration. For that, create a Configuration instance with all the needed parameters.
<?php
// simple configuration to connect "my-host"
$configuration = new Ssh\Configuration('my-host');
The availble configration classes are:
ConfigurationSshConfigFileConfiguration
Both connection configuration and public/private key authetication can be obtained from a ssh config file such as ~/.ssh/config
<?php
// simple configuration to connect "my-host"
$configuration = new Ssh\SshConfigFileConfiguration('/Users/username/.ssh/config', 'my-host');
$authentication = $configuration->getAuthentication('optional_passphrase', 'optional_username');
The session is the central access point to the SSH functionality provided by the library.
<?php
// ... the configuration creation
$session = new Ssh\Session($configuration);
The authentication classes allow you to authenticate over a SSH session. When you define an authentication for a session, it will authenticate on connection.
<?php
$configuration = new Ssh\Configuration('myhost');
$authentication = new Ssh\Authentication\Password('John', 's3cr3t');
$session = new Session($configuration, $authentication);
The available authentication are:
Nonefor username based authenticationPasswordfor password authenticationPublicKeyFileto authenticate using a public keyHostBasedFileto authenticate using a public hostkeyAgentto authenticate using an ssh-agent
If you use an ssh config file you can load your authentication and configuration from it as follows:
<?php
$configuration = new Ssh\SshConfigFileConfiguration('~/.ssh/config', 'my-host');
$session = new Session($configuration, $configuration->getAuthentication());
This will pick up your public and private keys from your config file Host and Identity declarations.
Once you are authenticated over a SSH session, you can use the subsystems.
You can easily access the sftp subsystem of a session using the getSftp() method:
<?php
// the session creation
$sftp = $session->getSftp();
See the Ssh\Sftp class for more details on the available methods.
The session provides also the getPublickey() method to access the publickey subsystem:
<?php
// ... the session creation
$publickey = $session->getPublickey();
See the Ssh\Publickey class for more details on the available methods.
The session provides the getExec() method to access the exec subsystem
<?php
// ... the session creation
$exec = $session->getExec();
echo $exec->run('ls -lah');
See the Ssh\Exec class for more details.