/**
* Get Public Key
*
* Wrapper for $this->key->getPublicKey()
*
* @access public
* @param Integer $format optional
* @return Mixed
*/
public function getPublicKey($format = null)
{
return !isset($format) ? $this->key->getPublicKey() : $this->key->getPublicKey($format);
}
/**
* Request Identities
*
* See "2.5.2 Requesting a list of protocol 2 keys"
* Returns an array containing zero or more \Topxia\Service\Util\Phpsec\System\SSH\Agent\Identity objects
*
* @access public
* @return Array
*/
public function requestIdentities()
{
if (!$this->fsock) {
return array();
}
$packet = pack('NC', 1, self::SSH_AGENTC_REQUEST_IDENTITIES);
if (strlen($packet) != fputs($this->fsock, $packet)) {
user_error('Connection closed while requesting identities');
}
$length = current(unpack('N', fread($this->fsock, 4)));
$type = ord(fread($this->fsock, 1));
if ($type != self::SSH_AGENT_IDENTITIES_ANSWER) {
user_error('Unable to request identities');
}
$identities = array();
$keyCount = current(unpack('N', fread($this->fsock, 4)));
for ($i = 0; $i < $keyCount; $i++) {
$length = current(unpack('N', fread($this->fsock, 4)));
$key_blob = fread($this->fsock, $length);
$length = current(unpack('N', fread($this->fsock, 4)));
$key_comment = fread($this->fsock, $length);
$length = current(unpack('N', substr($key_blob, 0, 4)));
$key_type = substr($key_blob, 4, $length);
switch ($key_type) {
case 'ssh-rsa':
$key = new RSA();
$key->loadKey('ssh-rsa ' . base64_encode($key_blob) . ' ' . $key_comment);
break;
case 'ssh-dss':
// not currently supported
break;
}
// resources are passed by reference by default
if (isset($key)) {
$identity = new Identity($this->fsock);
$identity->setPublicKey($key);
$identity->setPublicKeyBlob($key_blob);
$identities[] = $identity;
unset($key);
}
}
return $identities;
}
