From 75e2f8472626a9e3f832e57424abb0996f962c56 Mon Sep 17 00:00:00 2001
From: florianfederspiel <florian@fedeo.de>
Date: Sat, 8 Nov 2025 19:02:08 +0100
Subject: [PATCH] Redone Auth

---
 src/plugins/auth.ts | 96 +++++++++++++++++++++++++++++++--------------
 1 file changed, 66 insertions(+), 30 deletions(-)

diff --git a/src/plugins/auth.ts b/src/plugins/auth.ts
index fc2642c..5de9635 100644
--- a/src/plugins/auth.ts
+++ b/src/plugins/auth.ts
@@ -1,55 +1,91 @@
 import { FastifyInstance } from "fastify";
 import fp from "fastify-plugin";
 import jwt from "jsonwebtoken";
-import {secrets} from "../utils/secrets";
+import { secrets } from "../utils/secrets.js";
 
 export default fp(async (server: FastifyInstance) => {
     server.addHook("preHandler", async (req, reply) => {
+        // 1️⃣ Token holen (Header oder Cookie)
+        const cookieToken = req.cookies?.token;
+        const authHeader = req.headers.authorization;
+        const headerToken = authHeader?.startsWith("Bearer ")
+            ? authHeader.slice(7)
+            : null;
+
+        const token =
+            headerToken && headerToken.length > 10 ? headerToken : cookieToken || null;
+
+        if (!token) {
+            return reply.code(401).send({ error: "Authentication required" });
+        }
 
         try {
-            // 1) Token aus Cookie lesen
-            const cookieToken = req.cookies?.token
-
-            // 2) Token aus Header lesen (falls Cookie nicht da ist)
-            const authHeader = req.headers.authorization
-            const headerToken = authHeader?.startsWith("Bearer ")
-                ? authHeader.slice(7)
-                : null
-
-            let token = null
-
-            if(headerToken !== null && headerToken.length > 10){
-                token = headerToken
-            } else if(cookieToken ){
-                token = cookieToken
-            }
-
-            if (!token) {
-                return // keine Exception → Route darf z. B. public sein
-            }
-
-
+            // 2️⃣ JWT verifizieren
             const payload = jwt.verify(token, secrets.JWT_SECRET!) as {
                 user_id: string;
                 email: string;
-                tenant_id?: string;
-                role?: string;
+                tenant_id: number;
             };
 
-            (req as any).user = payload;
+            if (!payload?.user_id || !payload.tenant_id) {
+                return reply.code(401).send({ error: "Invalid token" });
+            }
+
+            req.user = payload;
+
+            // 3️⃣ Rolle des Nutzers im Tenant laden
+            const { data: roleData, error: roleError } = await server.supabase
+                .from("auth_user_roles")
+                .select("role_id")
+                .eq("user_id", payload.user_id)
+                .eq("tenant_id", payload.tenant_id)
+                .maybeSingle();
+
+            if (roleError) {
+                server.log.error("Error fetching user role", roleError);
+                return reply.code(500).send({ error: "Failed to load user role" });
+            }
+
+            if (!roleData) {
+                return reply.code(403).send({ error: "No role assigned for this tenant" });
+            }
+
+            const roleId = roleData.role_id;
+
+            // 4️⃣ Berechtigungen der Rolle laden
+            const { data: permissions, error: permsError } = await server.supabase
+                .from("auth_role_permissions")
+                .select("permission")
+                .eq("role_id", roleId);
+
+            if (permsError) {
+                server.log.error("Failed to load permissions", permsError);
+                return reply.code(500).send({ error: "Permission lookup failed" });
+            }
+
+            const perms = permissions?.map((p) => p.permission) ?? [];
+
+            // 5️⃣ An Request hängen
+            req.role = roleId;
+            req.permissions = perms;
+            req.hasPermission = (perm: string) => perms.includes(perm);
+
         } catch (err) {
             return reply.code(401).send({ error: "Invalid or expired token" });
         }
     });
 });
 
+// 🧩 Fastify Type Declarations
 declare module "fastify" {
     interface FastifyRequest {
-        user?: {
+        user: {
             user_id: string;
             email: string;
-            tenant_id?: number;
-            role?: string;
+            tenant_id: number;
         };
+        role: string;
+        permissions: string[];
+        hasPermission: (permission: string) => boolean;
     }
-}
\ No newline at end of file
+}