requestIdentities() method pumps out \phpseclib\System\SSH\Agent\Identity objects
/**
* {@inheritdoc}
*/
public function connect()
{
$serverConfig = $this->getConfiguration();
$this->sftp = new SFTP($serverConfig->getHost(), $serverConfig->getPort(), 3600);
switch ($serverConfig->getAuthenticationMethod()) {
case Configuration::AUTH_BY_PASSWORD:
$result = $this->sftp->login($serverConfig->getUser(), $serverConfig->getPassword());
break;
case Configuration::AUTH_BY_IDENTITY_FILE:
$key = new RSA();
$key->setPassword($serverConfig->getPassPhrase());
$key->loadKey(file_get_contents($serverConfig->getPrivateKey()));
$result = $this->sftp->login($serverConfig->getUser(), $key);
break;
case Configuration::AUTH_BY_PEM_FILE:
$key = new RSA();
$key->loadKey(file_get_contents($serverConfig->getPemFile()));
$result = $this->sftp->login($serverConfig->getUser(), $key);
break;
case Configuration::AUTH_BY_AGENT:
$key = new Agent();
$key->startSSHForwarding(null);
$result = $this->sftp->login($serverConfig->getUser(), $key);
break;
default:
throw new RuntimeException('You need to specify authentication method.');
}
if (!$result) {
throw new RuntimeException('Unable to login with the provided credentials.');
}
}
/**
* Login with an ssh-agent provided key
*
* @param String $username
* @param \phpseclib\System\SSH\Agent $agent
* @return Boolean
* @access private
*/
function _ssh_agent_login($username, $agent)
{
$this->agent = $agent;
$keys = $agent->requestIdentities();
foreach ($keys as $key) {
if ($this->_privatekey_login($username, $key)) {
return true;
}
}
return false;
}