first commit

2026-04-26 22:15:25 +03:00
commit 9eb7aea821
56 changed files with 20630 additions and 0 deletions
--- a/lib/auth.ts
+++ b/lib/auth.ts
@@ -0,0 +1,146 @@
+import type { NextAuthOptions } from 'next-auth'
+import type { JWT } from 'next-auth/jwt'
+import CredentialsProvider from 'next-auth/providers/credentials'
+import GitHubProvider from 'next-auth/providers/github'
+import GoogleProvider from 'next-auth/providers/google'
+import {
+  fetchRefreshedBackendJwt,
+  getJwtExpMs,
+  shouldRefreshBackendToken,
+} from '@/lib/backend-jwt-refresh'
+
+const API_BASE = process.env.API_BASE_URL ?? 'http://localhost:8080'
+
+type AuthUser = {
+  id: string
+  email: string
+  username: string
+  accessToken: string
+  refreshToken: string
+  accessTokenExpires: number
+}
+
+async function refreshAccessToken(token: JWT): Promise<JWT> {
+  const next = await fetchRefreshedBackendJwt(token)
+  if (!next) {
+    return {
+      ...token,
+      error: 'RefreshAccessTokenError',
+    }
+  }
+  return next
+}
+
+export const authOptions: NextAuthOptions = {
+  session: {
+    strategy: 'jwt',
+    /** NextAuth oturum çerezi ömrü (saniye) — backend refresh ile uyumlu uzun süre */
+    maxAge: 60 * 60 * 24 * 7,
+  },
+  secret: process.env.NEXTAUTH_SECRET ?? process.env.AUTH_SECRET,
+  providers: [
+    ...(process.env.GOOGLE_CLIENT_ID && process.env.GOOGLE_CLIENT_SECRET
+      ? [
+          GoogleProvider({
+            clientId: process.env.GOOGLE_CLIENT_ID,
+            clientSecret: process.env.GOOGLE_CLIENT_SECRET,
+          }),
+        ]
+      : []),
+    ...(process.env.GITHUB_CLIENT_ID && process.env.GITHUB_CLIENT_SECRET
+      ? [
+          GitHubProvider({
+            clientId: process.env.GITHUB_CLIENT_ID,
+            clientSecret: process.env.GITHUB_CLIENT_SECRET,
+          }),
+        ]
+      : []),
+    CredentialsProvider({
+      name: 'Credentials',
+      credentials: {
+        email: { label: 'Email', type: 'email' },
+        password: { label: 'Password', type: 'password' },
+      },
+      async authorize(credentials) {
+        const email = credentials?.email
+        const password = credentials?.password
+        if (!email || !password) return null
+
+        const res = await fetch(`${API_BASE}/api/v1/auth/login`, {
+          method: 'POST',
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify({ email, password }),
+        })
+
+        if (!res.ok) return null
+
+        const data = (await res.json()) as { access: string; refresh: string }
+        const accessToken = data.access
+        const refreshToken = data.refresh
+
+        return {
+          id: email,
+          email,
+          username: email,
+          accessToken,
+          refreshToken,
+          accessTokenExpires: getJwtExpMs(accessToken),
+        } satisfies AuthUser
+      },
+    }),
+  ],
+  callbacks: {
+    async jwt({ token, user }) {
+      if (user) {
+        const authUser = user as AuthUser
+
+        // OAuth login akışında backend access/refresh token'ı yoksa refresh denemeyelim.
+        if (!authUser.accessToken || !authUser.refreshToken) {
+          return {
+            ...token,
+            user: {
+              id: authUser.id,
+              email: authUser.email,
+              username: authUser.username ?? authUser.email,
+            },
+          }
+        }
+
+        return {
+          ...token,
+          accessToken: authUser.accessToken,
+          refreshToken: authUser.refreshToken,
+          accessTokenExpires: authUser.accessTokenExpires,
+          user: {
+            id: authUser.id,
+            email: authUser.email,
+            username: authUser.username,
+          },
+        }
+      }
+
+      if (token.error === 'RefreshAccessTokenError') {
+        return token
+      }
+
+      if (!shouldRefreshBackendToken(token)) {
+        return token
+      }
+
+      return refreshAccessToken(token)
+    },
+    async session({ session, token }) {
+      session.user = {
+        ...(session.user ?? {}),
+        ...(token.user ?? {}),
+      }
+      session.accessToken = token.accessToken
+      session.refreshToken = token.refreshToken
+      session.error = token.error
+      return session
+    },
+  },
+  pages: {
+    signIn: '/auth/login',
+  },
+}