archetecture security fix

apps/api/src/middleware/requireCompanyAuth.ts

@@ -0,0 +1,49 @@
+import { Request, Response, NextFunction } from 'express'
+import { prisma } from '../lib/prisma'
+import { getAuthToken, sendUnauthorized } from './authHelpers'
+import { verifyActorToken } from '../security/tokens'
+import { getSessionCookieName } from '../security/sessionCookies'
+import { actorLimiter } from './rateLimiter'
+
+/**
+ * Validates a company-scoped Bearer token and loads the employee + company onto `req`.
+ *
+ * Guarantees on success:
+ *   req.employee  — full employee record (with company relation)
+ *   req.company   — the employee's company
+ *   req.companyId — string shorthand for req.company.id
+ */
+async function authenticateCompanyRequest(req: Request, res: Response, next: NextFunction) {
+  const token = getAuthToken(req, getSessionCookieName('employee'))
+
+  if (!token) return sendUnauthorized(res, 'unauthenticated', 'Authentication required')
+
+  let payload: { sub: string; type: string }
+  try {
+    payload = verifyActorToken(token, 'employee')
+  } catch {
+    return sendUnauthorized(res, 'invalid_token', 'Invalid or expired session token')
+  }
+
+  const employee = await prisma.employee.findUnique({
+    where: { id: payload.sub },
+    include: { company: true },
+  })
+
+  if (!employee || !employee.isActive) {
+    return sendUnauthorized(res, 'unauthenticated', 'Employee account not found or inactive')
+  }
+
+  req.employee  = employee
+  req.company   = employee.company
+  req.companyId = employee.companyId
+  return actorLimiter(req, res, next)
+}
+
+export async function requireCompanyAuth(req: Request, res: Response, next: NextFunction) {
+  return authenticateCompanyRequest(req, res, next)
+}
+
+export async function requireCompanyDocumentAuth(req: Request, res: Response, next: NextFunction) {
+  return authenticateCompanyRequest(req, res, next)
+}