Hugging Face MCP Server

import { logger } from '../utils/logger.js'; /** * Extracts HF token, bouquet, mix, and gradio from headers and environment */ function parseListParam(value: string | undefined): string[] | undefined { if (!value) return undefined; const parts = value .split(',') .map((part) => part.trim()) .filter(Boolean); return parts.length > 0 ? parts : undefined; } export function extractAuthBouquetAndMix(headers: Record<string, string> | null): { hfToken: string | undefined; bouquet: string | undefined; mix: string[] | undefined; gradio: string | undefined; } { let tokenFromHeader: string | undefined; let bouquet: string | undefined; let mix: string[] | undefined; let gradio: string | undefined; if (headers) { // Extract token from Authorization header if ('authorization' in headers) { const authHeader = headers.authorization || ''; if (authHeader.startsWith('Bearer ')) { tokenFromHeader = authHeader.slice(7).trim(); } } // Extract bouquet from custom header if ('x-mcp-bouquet' in headers) { bouquet = headers['x-mcp-bouquet']; logger.trace({ bouquet }, 'Bouquet parameter received'); } // Extract mix from custom header if ('x-mcp-mix' in headers) { mix = parseListParam(headers['x-mcp-mix']); logger.trace({ mix }, 'Mix parameter received'); } // Extract gradio from custom header if ('x-mcp-gradio' in headers) { gradio = headers['x-mcp-gradio']; logger.trace({ gradio }, 'Gradio parameter received'); } } // Use token from header if available, otherwise fall back to environment const hfToken = tokenFromHeader || process.env.DEFAULT_HF_TOKEN; return { hfToken, bouquet, mix, gradio }; }