n8n-MCP

"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.detectBaseUrl = detectBaseUrl; exports.getStartupBaseUrl = getStartupBaseUrl; exports.formatEndpointUrls = formatEndpointUrls; const logger_1 = require("./logger"); function isValidHostname(host) { return /^[a-zA-Z0-9.-]+(:[0-9]+)?$/.test(host) && host.length < 256; } function isValidUrl(url) { try { const parsed = new URL(url); return parsed.protocol === 'http:' || parsed.protocol === 'https:'; } catch { return false; } } function detectBaseUrl(req, host, port) { try { const configuredUrl = process.env.BASE_URL || process.env.PUBLIC_URL; if (configuredUrl) { if (isValidUrl(configuredUrl)) { logger_1.logger.debug('Using configured BASE_URL/PUBLIC_URL', { url: configuredUrl }); return configuredUrl.replace(/\/$/, ''); } else { logger_1.logger.warn('Invalid BASE_URL/PUBLIC_URL configured, falling back to auto-detection', { url: configuredUrl }); } } if (req && process.env.TRUST_PROXY && Number(process.env.TRUST_PROXY) > 0) { const proto = req.get('X-Forwarded-Proto') || req.protocol || 'http'; const forwardedHost = req.get('X-Forwarded-Host'); const hostHeader = req.get('Host'); const detectedHost = forwardedHost || hostHeader; if (detectedHost && isValidHostname(detectedHost)) { const baseUrl = `${proto}://${detectedHost}`; logger_1.logger.debug('Detected URL from proxy headers', { proto, forwardedHost, hostHeader, baseUrl }); return baseUrl; } else if (detectedHost) { logger_1.logger.warn('Invalid hostname detected in proxy headers, using fallback', { detectedHost }); } } const displayHost = host === '0.0.0.0' ? 'localhost' : host; const protocol = 'http'; const needsPort = port !== 80; const baseUrl = needsPort ? `${protocol}://${displayHost}:${port}` : `${protocol}://${displayHost}`; logger_1.logger.debug('Using fallback URL from host/port', { host, displayHost, port, baseUrl }); return baseUrl; } catch (error) { logger_1.logger.error('Error detecting base URL, using fallback', error); return `http://localhost:${port}`; } } function getStartupBaseUrl(host, port) { return detectBaseUrl(null, host, port); } function formatEndpointUrls(baseUrl) { return { health: `${baseUrl}/health`, mcp: `${baseUrl}/mcp`, root: baseUrl }; } //# sourceMappingURL=url-detector.js.map