public static function unserialize(\fpoirotte\Pssht\Wire\Decoder $decoder)
{
$pubkey = $decoder->decodeString();
if (strlen($pubkey) !== 32) {
throw new \InvalidArgumentException();
}
return new static($pubkey);
}
protected static function unserializeSub(\fpoirotte\Pssht\Wire\Decoder $decoder)
{
$passChange = $decoder->decodeBoolean();
$res = array($decoder->decodeString());
if ($passChange === true) {
$res[] = $decoder->decodeString();
}
return $res;
}
public function handle($msgType, \fpoirotte\Pssht\Wire\Decoder $decoder, \fpoirotte\Pssht\Transport $transport, array &$context)
{
$ident = $decoder->getBuffer()->get("\r\n");
if ($ident === null) {
throw new \RuntimeException();
}
$context['identity']['client'] = (string) substr($ident, 0, -2);
if (strncmp($ident, 'SSH-2.0-', 8) !== 0) {
throw new \fpoirotte\Pssht\Messages\DISCONNECT();
}
$context['rekeying'] = 'server';
return $this->handleKEXINIT($transport, $context);
}
public function handle($msgType, \fpoirotte\Pssht\Wire\Decoder $decoder, \fpoirotte\Pssht\Transport $transport, array &$context)
{
$localChannel = $decoder->decodeUint32();
$encoder = new \fpoirotte\Pssht\Wire\Encoder();
$encoder->encodeUint32($localChannel);
$decoder->getBuffer()->unget($encoder->getBuffer()->get(0));
if (isset($this->handlers[$localChannel][$msgType])) {
$handler = $this->handlers[$localChannel][$msgType];
$logging = \Plop\Plop::getInstance();
$logging->debug('Calling %(handler)s for channel #%(channel)d ' . 'with message type #%(msgType)d', array('handler' => get_class($handler) . '::handle', 'channel' => $localChannel, 'msgType' => $msgType));
return $handler->handle($msgType, $decoder, $transport, $context);
}
return true;
}
protected static function unserializeSub(\fpoirotte\Pssht\Wire\Decoder $decoder)
{
$signature = $decoder->decodeBoolean();
$algorithm = $decoder->decodeString();
$res = array($algorithm, $decoder->decodeString());
if ($signature === true) {
$decoder2 = new \fpoirotte\Pssht\Wire\Decoder(new \fpoirotte\Pssht\Buffer($decoder->decodeString()));
if ($decoder2->decodeString() !== $algorithm) {
throw new \InvalidArgumentException();
}
$res[] = $decoder2->decodeString();
}
return $res;
}
protected static function unserializeSub(\fpoirotte\Pssht\Wire\Decoder $decoder)
{
$algorithm = $decoder->decodeString();
$res = array($algorithm, $decoder->decodeString(), $decoder->decodeString(), $decoder->decodeString());
// Special handling for signature.
$decoder2 = new \fpoirotte\Pssht\Wire\Decoder(new \fpoirotte\Pssht\Buffer($decoder->decodeString()));
if ($decoder2->decodeString() !== $algorithm) {
throw new \InvalidArgumentException();
}
$res[] = $decoder2->decodeString();
return $res;
}
public function handle($msgType, \fpoirotte\Pssht\Wire\Decoder $decoder, \fpoirotte\Pssht\Transport $transport, array &$context)
{
$encoder = new \fpoirotte\Pssht\Wire\Encoder();
$channel = $decoder->decodeUint32();
$type = $decoder->decodeString();
$wantsReply = $decoder->decodeBoolean();
$encoder->encodeUint32($channel);
$encoder->encodeString($type);
$encoder->encodeBoolean($wantsReply);
$decoder->getBuffer()->unget($encoder->getBuffer()->get(0));
$remoteChannel = $this->connection->getChannel($channel);
switch ($type) {
case 'exec':
case 'shell':
case 'pty-req':
// Normalize the name.
// Eg. "pty-req" becomes "PtyReq".
$cls = str_replace(' ', '', ucwords(str_replace('-', ' ', $type)));
$cls = '\\fpoirotte\\Pssht\\Messages\\CHANNEL\\REQUEST\\' . $cls;
$message = $cls::unserialize($decoder);
break;
default:
if ($wantsReply) {
$response = new \fpoirotte\Pssht\Messages\CHANNEL\FAILURE($remoteChannel);
$transport->writeMessage($response);
}
return true;
}
if (!$wantsReply) {
return true;
}
if (in_array($type, array('shell', 'exec'), true)) {
$response = new \fpoirotte\Pssht\Messages\CHANNEL\SUCCESS($remoteChannel);
} else {
$response = new \fpoirotte\Pssht\Messages\CHANNEL\FAILURE($remoteChannel);
}
$transport->writeMessage($response);
if (in_array($type, array('shell', 'exec'), true)) {
$callable = $transport->getApplicationFactory();
if ($callable !== null) {
call_user_func($callable, $transport, $this->connection, $message);
}
}
return true;
}
protected static function unserializeSub(\fpoirotte\Pssht\Wire\Decoder $decoder)
{
return array($decoder->decodeUint32());
}
public static function unserialize(\fpoirotte\Pssht\Wire\Decoder $decoder)
{
return new static($decoder->decodeUint32());
}
public static function unserialize(\fpoirotte\Pssht\Wire\Decoder $decoder)
{
$res = new static(new \fpoirotte\Pssht\Random\Fixed($decoder->decodeBytes(16)), $decoder->decodeNameList(), $decoder->decodeNameList(), $decoder->decodeNameList(), $decoder->decodeNameList(), $decoder->decodeNameList(), $decoder->decodeNameList(), $decoder->decodeNameList(), $decoder->decodeNameList(), $decoder->decodeNameList(), $decoder->decodeNameList(), $decoder->decodeBoolean());
$decoder->decodeUint32();
// Reserved
return $res;
}
public static final function unserialize(\fpoirotte\Pssht\Wire\Decoder $decoder)
{
$reflector = new \ReflectionClass(get_called_class());
$args = array_merge(array($decoder->decodeUint32(), $decoder->decodeString(), $decoder->decodeBoolean()), static::unserializeSub($decoder));
return $reflector->newInstanceArgs($args);
}
public static function unserialize(\fpoirotte\Pssht\Wire\Decoder $decoder)
{
$point = \fpoirotte\Pssht\ECC\Point::unserialize(static::getCurve(), $decoder->decodeString());
return new static($point);
}
public static function unserialize(\fpoirotte\Pssht\Wire\Decoder $decoder)
{
return new static($decoder->decodeBoolean(), $decoder->decodeString(), $decoder->decodeString());
}
public function handle($msgType, \fpoirotte\Pssht\Wire\Decoder $decoder, \fpoirotte\Pssht\Transport $transport, array &$context)
{
if ($this->connection !== null) {
// Silently ignore subsequent authentication requests
// after a successful authentication took place.
return true;
}
$encoder = new \fpoirotte\Pssht\Wire\Encoder();
$user = $decoder->decodeString();
$service = $decoder->decodeString();
$method = $decoder->decodeString();
$encoder->encodeString($user);
$encoder->encodeString($service);
$encoder->encodeString($method);
$decoder->getBuffer()->unget($encoder->getBuffer()->get(0));
if (!isset($context['authMethods'])) {
$context['authMethods'] = $this->methods;
}
if (!isset($context['banner'])) {
$context['banner'] = (string) $transport->getBanner();
if ($context['banner'] !== '') {
$response = new \fpoirotte\Pssht\Messages\USERAUTH\BANNER($context['banner']);
$transport->writeMessage($response);
}
}
if (!isset($context['authMethods'][$method])) {
return $this->failure($transport, $context);
}
$messagesCls = array('none' => '\\fpoirotte\\Pssht\\Messages\\USERAUTH\\REQUEST\\None', 'hostbased' => '\\fpoirotte\\Pssht\\Messages\\USERAUTH\\REQUEST\\HostBased', 'password' => '\\fpoirotte\\Pssht\\Messages\\USERAUTH\\REQUEST\\Password', 'publickey' => '\\fpoirotte\\Pssht\\Messages\\USERAUTH\\REQUEST\\PublicKey');
$methodObj = $context['authMethods'][$method];
$message = $messagesCls[$method]::unserialize($decoder);
switch ($methodObj->check($message, $transport, $context)) {
case AuthenticationInterface::CHECK_IGNORE:
return true;
case AuthenticationInterface::CHECK_REJECT:
return $this->failure($transport, $context);
case AuthenticationInterface::CHECK_OK:
break;
default:
throw new \RuntimeException();
}
switch ($methodObj->authenticate($message, $transport, $context)) {
case AuthenticationInterface::AUTH_REMOVE:
unset($context['authMethods'][$method]);
// Do not break.
// Do not break.
case AuthenticationInterface::AUTH_REJECT:
return $this->failure($transport, $context);
case AuthenticationInterface::AUTH_ACCEPT:
break;
default:
throw new \RuntimeException();
}
unset($context['authMethods'][$method]);
$response = new \fpoirotte\Pssht\Messages\USERAUTH\SUCCESS();
$this->connection = new \fpoirotte\Pssht\Connection($transport);
$transport->writeMessage($response);
$compressor = $transport->getCompressor();
if ($compressor instanceof \fpoirotte\Pssht\DelayedCompressionInterface) {
$compressor->setAuthenticated();
}
$uncompressor = $transport->getUncompressor();
if ($uncompressor instanceof \fpoirotte\Pssht\DelayedCompressionInterface) {
$uncompressor->setAuthenticated();
}
return true;
}
protected static function unserializeSub(\fpoirotte\Pssht\Wire\Decoder $decoder)
{
return array($decoder->decodeString(), $decoder->decodeBoolean(), $decoder->decodeString(), $decoder->decodeString());
}
