89 lines
3.5 KiB
PHP
89 lines
3.5 KiB
PHP
<?php
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declare(strict_types=1);
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require_once __DIR__ . '/../../modules/shared/db.php';
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require_once __DIR__ . '/../../modules/erp/lager/mcp.php';
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final class ErpLagerMcpJsonRpcException extends RuntimeException
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{
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public function __construct(private int $rpcCode, string $message, ?Throwable $previous = null)
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{
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parent::__construct($message, 0, $previous);
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}
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public function rpcCode(): int
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{
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return $this->rpcCode;
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}
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}
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header('Content-Type: application/json; charset=utf-8');
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header('Cache-Control: no-store');
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$env = expand_env_values(parse_env_file(__DIR__ . '/../../.env'));
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$request = [];
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try {
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erp_lager_mcp_authorize($env);
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$pdo = connect_database($env);
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$body = file_get_contents('php://input');
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$request = json_decode($body === false ? '' : $body, true, 512, JSON_THROW_ON_ERROR);
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if (!is_array($request) || ($request['jsonrpc'] ?? '') !== '2.0') {
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throw new InvalidArgumentException('Ungültige JSON-RPC-Anfrage.');
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}
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if (array_key_exists('params', $request) && !is_array($request['params'])) {
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throw new ErpLagerMcpJsonRpcException(-32602, 'Parameter müssen als Objekt oder Array übergeben werden.');
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}
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$id = $request['id'] ?? null;
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$method = (string) ($request['method'] ?? '');
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$params = is_array($request['params'] ?? null) ? $request['params'] : [];
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if ($method === 'initialize') {
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$result = [
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'protocolVersion' => (string) ($params['protocolVersion'] ?? '2025-03-26'),
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'capabilities' => ['tools' => ['listChanged' => false]],
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'serverInfo' => ['name' => 'naurua-erp-lager', 'version' => '1.0.0'],
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];
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} elseif ($method === 'notifications/initialized') {
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http_response_code(202);
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exit;
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} elseif ($method === 'tools/list') {
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$result = ['tools' => erp_lager_mcp_tools()];
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} elseif ($method === 'tools/call') {
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$tool = (string) ($params['name'] ?? '');
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$arguments = is_array($params['arguments'] ?? null) ? $params['arguments'] : [];
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if (array_key_exists('arguments', $params) && !is_array($params['arguments'])) {
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throw new ErpLagerMcpJsonRpcException(-32602, 'Tool-Argumente müssen als Objekt übergeben werden.');
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}
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try {
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$result = [
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'content' => [[
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'type' => 'text',
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'text' => json_encode(erp_lager_mcp_call($pdo, $tool, $arguments), JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_THROW_ON_ERROR),
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]],
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'isError' => false,
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];
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} catch (InvalidArgumentException $e) {
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throw new ErpLagerMcpJsonRpcException(-32602, $e->getMessage(), $e);
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}
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} else {
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throw new ErpLagerMcpJsonRpcException(-32601, 'Unbekannte JSON-RPC-Methode: ' . $method);
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}
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echo json_encode(['jsonrpc' => '2.0', 'id' => $id, 'result' => $result], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_THROW_ON_ERROR);
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} catch (Throwable $e) {
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$isAuthError = $e instanceof RuntimeException && str_contains($e->getMessage(), 'Token');
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$isJsonRpcError = $e instanceof ErpLagerMcpJsonRpcException;
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http_response_code($isJsonRpcError ? 200 : ($isAuthError ? 401 : 400));
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echo json_encode([
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'jsonrpc' => '2.0',
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'id' => $request['id'] ?? null,
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'error' => [
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'code' => $isJsonRpcError ? $e->rpcCode() : -32600,
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'message' => $e->getMessage(),
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],
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], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
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}
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