feat : 6 astra improve it

lib/auth/server.ts

@@ -5,6 +5,7 @@ import { drizzleAdapter } from "better-auth/adapters/drizzle";
 import { nextCookies } from "better-auth/next-js";
 import { admin, captcha } from "better-auth/plugins";
 import { headers } from "next/headers";
+import { cache } from "react";
 
 import { getDb } from "@/db";
 import {
@@ -15,6 +16,8 @@ import {
 } from "@/db/schema";
 
 import { isAuthorizedAdmin, type SessionUserLike } from "./authorization";
+import { HttpError } from "@/lib/security/http";
+import { consumeRateLimit } from "@/lib/security/rate-limit";
 
 function required(name: string): string {
   const value = process.env[name];
@@ -50,16 +53,20 @@ function createAuth() {
     emailAndPassword: {
       enabled: true,
       disableSignUp: true,
-      minPasswordLength: 8,
+      minPasswordLength: 12,
       maxPasswordLength: 128,
     },
-    databaseHooks: {
-      user: {
-        create: {
-          before: async () => ({ data: { emailVerified: true } }),
-        },
+    advanced: {
+      ipAddress: {
+        ipAddressHeaders: process.env.TRUSTED_CLIENT_IP_HEADER
+          ? [process.env.TRUSTED_CLIENT_IP_HEADER] : [],
       },
     },
+    rateLimit: {
+      enabled: true,
+      customStorage: { consume: (key, rule) => consumeRateLimit(`auth:${key}`, rule) },
+      customRules: { "/sign-in/email": { window: 60, max: 10 } },
+    },
     plugins: [
       ...(process.env.NODE_ENV === "development" ? [] : [
         captcha({
@@ -68,7 +75,7 @@ function createAuth() {
           endpoints: ["/sign-in/email"],
         }),
       ]),
-      admin({ defaultRole: "admin" }),
+      admin({ defaultRole: "user" }),
       nextCookies(),
     ],
   });
@@ -87,20 +94,7 @@ export interface AdminSession {
   session: { id: string };
 }
 
-export async function getAdminSession(): Promise<AdminSession | null> {
-  if (process.env.BUZZ_DEMO_MODE === "true") {
-    return {
-      user: {
-        id: "demo-admin",
-        email: "[email protected]",
-        emailVerified: true,
-        role: "admin",
-        name: "Demo Admin",
-      },
-      session: { id: "demo-session" },
-    };
-  }
-
+export const getAdminSession = cache(async (): Promise<AdminSession | null> => {
   // Public pages can be prerendered without the runtime auth secret. In that
   // case the header simply omits the admin link; auth routes still fail loudly
   // through getAuth() when authentication is actually used.
@@ -117,11 +111,11 @@ export async function getAdminSession(): Promise<AdminSession | null> {
     user: session.user,
     session: { id: session.session.id },
   };
-}
+});
 
-export class AdminAuthorizationError extends Error {
+export class AdminAuthorizationError extends HttpError {
   constructor() {
-    super("Admin authorization required.");
+    super(401, "unauthorized");
     this.name = "AdminAuthorizationError";
   }
 }