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, $context); } return true; }
public function handle($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, $message); } } return true; }
public function handle($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; }