privateGPT MCP Server

<?php /** * MCPChatClient.php * * A PHP script that acts as a chat client. It connects to a server via TCP, * sends a chat request, and receives the server's response. * * Usage: * php MCPChatClient.php --server-ip <IP> --server-port <Port> --token <Token> --question <Question> [--use-public] [--groups <Group1> <Group2> ...] [--language <Language>] */ // Functions for parsing command line arguments function parseArguments($args) { $parsedArgs = []; $argc = count($args); for ($i = 1; $i < $argc; $i++) { switch ($args[$i]) { case '--server-ip': if (isset($args[$i + 1]) && !startsWith($args[$i + 1], '--')) { $parsedArgs['serverIp'] = $args[++$i]; } else { fwrite(STDERR, "Error: --server-ip expects a value.\n"); exit(1); } break; case '--server-port': if (isset($args[$i + 1]) && !startsWith($args[$i + 1], '--')) { $parsedArgs['serverPort'] = intval($args[++$i]); } else { fwrite(STDERR, "Error: --server-port expects a value.\n"); exit(1); } break; case '--token': if (isset($args[$i + 1]) && !startsWith($args[$i + 1], '--')) { $parsedArgs['token'] = $args[++$i]; } else { fwrite(STDERR, "Error: --token expects a value.\n"); exit(1); } break; case '--question': if (isset($args[$i + 1]) && !startsWith($args[$i + 1], '--')) { $parsedArgs['question'] = $args[++$i]; } else { fwrite(STDERR, "Error: --question expects a value.\n"); exit(1); } break; case '--use-public': $parsedArgs['usePublic'] = true; break; case '--groups': // Collect all group arguments until the next flag or end $parsedArgs['groups'] = []; while ($i + 1 < $argc && !startsWith($args[$i + 1], '--')) { $parsedArgs['groups'][] = $args[++$i]; } break; case '--language': if (isset($args[$i + 1]) && !startsWith($args[$i + 1], '--')) { $parsedArgs['language'] = $args[++$i]; } else { fwrite(STDERR, "Error: --language expects a value.\n"); exit(1); } break; default: fwrite(STDERR, "Warning: Unknown argument: {$args[$i]}\n"); } } return $parsedArgs; } // Helper function to check if a string starts with a specific prefix function startsWith($string, $prefix) { return substr($string, 0, strlen($prefix)) === $prefix; } // Function for interactively prompting a parameter (optional) function askQuestionPrompt($prompt) { if (preg_match('/^win/i', PHP_OS)) { // Windows-specific input prompt $vbscript = sys_get_temp_dir() . 'prompt_input.vbs'; file_put_contents($vbscript, 'wscript.echo(InputBox("' . addslashes($prompt) . '", "", ""))'); $response = shell_exec("cscript //nologo " . escapeshellarg($vbscript)); unlink($vbscript); return trim($response); } else { // Unix/Linux input prompt echo $prompt; $handle = fopen("php://stdin", "r"); $response = trim(fgets($handle)); fclose($handle); return $response; } } // Function to send a chat request over a TCP connection function sendChatRequest($serverIp, $serverPort, $payload) { $jsonPayload = json_encode($payload); if ($jsonPayload === false) { throw new Exception("Error encoding JSON payload."); } $errno = 0; $errstr = ''; $timeout = 30; // seconds $client = @fsockopen($serverIp, $serverPort, $errno, $errstr, $timeout); if (!$client) { throw new Exception("Connection error: $errstr ($errno)"); } echo "πŸ”— Connection to server established.\n"; echo "πŸ“€ Sending payload: $jsonPayload\n"; fwrite($client, $jsonPayload); $responseData = ''; stream_set_timeout($client, $timeout); while (!feof($client)) { $data = fread($client, 1024); if ($data === false) { throw new Exception("Error reading data from server."); } if ($data === '') { break; // No more data } echo "πŸ“₯ Received data: $data\n"; $responseData .= $data; // Attempt to parse the received data as JSON $parsedData = json_decode($responseData, true); if ($parsedData !== null) { echo "βœ… JSON response successfully parsed.\n"; fclose($client); return $parsedData; } // Check if the stream timed out $info = stream_get_meta_data($client); if ($info['timed_out']) { throw new Exception("Timeout waiting for data from server."); } } fclose($client); throw new Exception("Connection to the server was closed before a complete response was received."); } // Main function function main($argv) { $args = parseArguments($argv); $serverIp = $args['serverIp'] ?? null; $serverPort = $args['serverPort'] ?? null; $token = $args['token'] ?? null; $question = $args['question'] ?? null; $usePublic = $args['usePublic'] ?? false; $groups = $args['groups'] ?? []; $language = $args['language'] ?? 'en'; // Default to English // Check if all required parameters are present if (!$serverIp || !$serverPort || !$token || !$question) { fwrite(STDERR, "❌ ERROR: Missing required parameters.\n"); fwrite(STDOUT, "Usage: php MCPChatClient.php --server-ip <IP> --server-port <Port> --token <Token> --question <Question> [--use-public] [--groups <Group1> <Group2> ...] [--language <Language>]\n"); exit(1); } $payload = [ "command" => "chat", "token" => $token, "arguments" => [ "question" => $question, "usePublic" => $usePublic, "groups" => $groups, "language" => $language ] ]; try { echo "πŸ’¬ Sending chat request...\n"; $response = sendChatRequest($serverIp, $serverPort, $payload); echo "βœ… Server Response:\n"; echo json_encode($response, JSON_PRETTY_PRINT) . "\n"; } catch (Exception $e) { fwrite(STDERR, "❌ ERROR: " . $e->getMessage() . "\n"); } } main($argv); ?>