Tally MCP

import { z } from 'zod'; import fs from 'fs'; import toml from 'toml'; import { env } from './env'; // Zod schema for a single KV namespace binding const kvNamespaceBindingSchema = z.object({ binding: z.string(), id: z.string(), }); // Zod schema for the main wrangler.toml configuration const wranglerConfigSchema = z.object({ name: z.string().min(1), compatibility_date: z.string().regex(/^\d{4}-\d{2}-\d{2}$/, 'Compatibility date must be in YYYY-MM-DD format.'), node_compat: z.boolean().optional(), kv_namespaces: z.array(kvNamespaceBindingSchema).optional(), vars: z.record(z.string()).optional(), // Add other wrangler.toml fields as needed secrets: z.array(z.string()).optional(), }); export type WranglerConfig = z.infer<typeof wranglerConfigSchema>; /** * Reads and validates the wrangler.toml file. * * @param path - The path to the wrangler.toml file. * @returns The parsed and validated configuration object. * @throws An error if the file cannot be read, parsed, or validated. */ export function getWranglerConfig(path: string = 'wrangler.toml'): WranglerConfig { let fileContent: string; try { fileContent = fs.readFileSync(path, 'utf-8'); } catch (error) { throw new Error(`Failed to read wrangler.toml from ${path}: ${(error as Error).message}`); } let parsedToml: any; try { parsedToml = toml.parse(fileContent); } catch (error: any) { throw new Error(`Failed to parse wrangler.toml: ${error.message} at line ${error.line}, column ${error.column}`); } const validationResult = wranglerConfigSchema.safeParse(parsedToml); if (!validationResult.success) { throw new Error(`Invalid wrangler.toml configuration: ${validationResult.error.flatten().fieldErrors}`); } // Check for secrets defined in plaintext const plaintextSecrets = Object.keys(env).filter(key => validationResult.data.vars && validationResult.data.vars[key] ); if (plaintextSecrets.length > 0) { console.warn(`Warning: The following secrets are defined in plaintext in wrangler.toml: ${plaintextSecrets.join(', ')}. It is recommended to use secrets for sensitive data.`); } return validationResult.data; }