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<?php
namespace PHPIAC;
use PHPIAC\Support\SingletonTraitWithArguments;
use phpseclib3\Crypt\PublicKeyLoader;
use phpseclib3\Net\SFTP;
use phpseclib3\Net\SSH2;
/**
* Class Connection
*
* @method static string exec(string $command, callback $callback = null)
* @method static string|bool|null read(string $expect = '', int $read = 1)
* @method static enablePty()
* @method static disablePty()
*/
class Connection
{
use SingletonTraitWithArguments;
private SSH2 $ssh;
private SFTP $sftp;
/**
* Connection constructor.
*
* @param string $host
* @param string $user
* @param string $key
*
* @throws \Exception
*/
public function __construct(string $host, string $user, string $key)
{
$this->ssh = new SSH2($host);
$key = PublicKeyLoader::load(file_get_contents($key));
if (! $this->ssh->login($user, $key)) {
throw new \Exception('SSH Login failed');
}
$this->sftp = new SFTP($host);
if (! $this->sftp->login($user, $key)) {
throw new \Exception('SFTP Login failed');
}
}
/**
* Calls SSH2 methods statically
*
* @param string $name
* @param array $arguments
*
* @return mixed
*/
public static function __callStatic(string $name, array $arguments): mixed
{
$self = self::getInstance();
if (! method_exists($self->ssh, $name)) {
return $self->sftp->$name(...$arguments);
}
return $self->ssh->$name(...$arguments);
}
/**
* @see SFTP::put
*/
public static function put($remote_file, $data, $mode = SFTP::SOURCE_STRING, $start = -1, $local_start = -1, $progressCallback = null): bool
{
$tmp = bin2hex(random_bytes(10)); # work around sftp sudo put restrictions
return
self::getInstance()->sftp->put("/tmp/$tmp", $data, $mode, $start, $local_start, $progressCallback) &&
self::getInstance()->ssh->exec("sudo mv /tmp/$tmp $remote_file");
}
}
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