localgreenchain/pages/auth/signup.tsx
Claude 39b6081baa
Implement comprehensive authentication system (Agent 1)
Add complete user authentication with NextAuth.js supporting:
- Email/password credentials authentication
- OAuth providers (GitHub, Google) with optional configuration
- JWT-based session management with 30-day expiry
- Role-based access control (USER, GROWER, FARM_MANAGER, ADMIN)
- Permission system with granular access control
- Secure password hashing with bcrypt (12 rounds)
- Rate limiting on auth endpoints
- Password reset flow with secure tokens
- Email verification system

Files added:
- lib/auth/: Core auth library (types, permissions, context, hooks, middleware)
- pages/api/auth/: Auth API routes (NextAuth, register, forgot-password, verify-email)
- pages/auth/: Auth pages (signin, signup, forgot-password, reset-password, verify-email)
- components/auth/: Reusable auth components (LoginForm, RegisterForm, AuthGuard, etc.)

Updated _app.tsx to include SessionProvider for auth state management.
2025-11-23 03:52:09 +00:00

270 lines
8.9 KiB
TypeScript

import { useState } from 'react'
import { GetServerSideProps } from 'next'
import { getServerSession } from 'next-auth/next'
import { signIn } from 'next-auth/react'
import Head from 'next/head'
import Link from 'next/link'
import { useRouter } from 'next/router'
import { authOptions } from '../api/auth/[...nextauth]'
import Layout from '@/components/layout'
export default function SignUp() {
const router = useRouter()
const { callbackUrl } = router.query
const [formData, setFormData] = useState({
name: '',
email: '',
password: '',
confirmPassword: '',
})
const [isLoading, setIsLoading] = useState(false)
const [error, setError] = useState<string | null>(null)
const [success, setSuccess] = useState(false)
const handleChange = (e: React.ChangeEvent<HTMLInputElement>) => {
setFormData((prev) => ({
...prev,
[e.target.name]: e.target.value,
}))
}
const validateForm = (): string | null => {
if (!formData.email || !formData.password) {
return 'Email and password are required'
}
if (formData.password.length < 8) {
return 'Password must be at least 8 characters long'
}
const hasUpperCase = /[A-Z]/.test(formData.password)
const hasLowerCase = /[a-z]/.test(formData.password)
const hasNumbers = /\d/.test(formData.password)
if (!hasUpperCase || !hasLowerCase || !hasNumbers) {
return 'Password must contain uppercase, lowercase, and numbers'
}
if (formData.password !== formData.confirmPassword) {
return 'Passwords do not match'
}
return null
}
const handleSubmit = async (e: React.FormEvent) => {
e.preventDefault()
setIsLoading(true)
setError(null)
const validationError = validateForm()
if (validationError) {
setError(validationError)
setIsLoading(false)
return
}
try {
const response = await fetch('/api/auth/register', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
name: formData.name,
email: formData.email,
password: formData.password,
}),
})
const data = await response.json()
if (!response.ok) {
setError(data.message || 'Registration failed')
return
}
setSuccess(true)
// Auto sign in after successful registration
setTimeout(async () => {
const result = await signIn('credentials', {
email: formData.email,
password: formData.password,
redirect: false,
})
if (result?.ok) {
router.push((callbackUrl as string) || '/')
} else {
router.push('/auth/signin')
}
}, 1500)
} catch (err) {
setError('An unexpected error occurred')
} finally {
setIsLoading(false)
}
}
if (success) {
return (
<Layout>
<Head>
<title>Registration Successful | LocalGreenChain</title>
</Head>
<div className="min-h-screen flex items-center justify-center bg-gray-50 py-12 px-4 sm:px-6 lg:px-8">
<div className="max-w-md w-full space-y-8 text-center">
<div className="bg-green-50 border border-green-200 text-green-700 px-4 py-8 rounded-lg">
<h2 className="text-2xl font-bold mb-2">Registration Successful!</h2>
<p>Your account has been created. Signing you in...</p>
</div>
</div>
</div>
</Layout>
)
}
return (
<Layout>
<Head>
<title>Sign Up | LocalGreenChain</title>
</Head>
<div className="min-h-screen flex items-center justify-center bg-gray-50 py-12 px-4 sm:px-6 lg:px-8">
<div className="max-w-md w-full space-y-8">
<div>
<h2 className="mt-6 text-center text-3xl font-extrabold text-gray-900">
Create your account
</h2>
<p className="mt-2 text-center text-sm text-gray-600">
Already have an account?{' '}
<Link href="/auth/signin">
<a className="font-medium text-green-600 hover:text-green-500">
Sign in
</a>
</Link>
</p>
</div>
{error && (
<div className="bg-red-50 border border-red-200 text-red-700 px-4 py-3 rounded relative">
<span className="block sm:inline">{error}</span>
</div>
)}
<form className="mt-8 space-y-6" onSubmit={handleSubmit}>
<div className="rounded-md shadow-sm space-y-4">
<div>
<label htmlFor="name" className="block text-sm font-medium text-gray-700">
Full Name (optional)
</label>
<input
id="name"
name="name"
type="text"
autoComplete="name"
value={formData.name}
onChange={handleChange}
className="mt-1 appearance-none relative block w-full px-3 py-2 border border-gray-300 placeholder-gray-500 text-gray-900 rounded-md focus:outline-none focus:ring-green-500 focus:border-green-500 sm:text-sm"
placeholder="John Doe"
/>
</div>
<div>
<label htmlFor="email" className="block text-sm font-medium text-gray-700">
Email address
</label>
<input
id="email"
name="email"
type="email"
autoComplete="email"
required
value={formData.email}
onChange={handleChange}
className="mt-1 appearance-none relative block w-full px-3 py-2 border border-gray-300 placeholder-gray-500 text-gray-900 rounded-md focus:outline-none focus:ring-green-500 focus:border-green-500 sm:text-sm"
placeholder="you@example.com"
/>
</div>
<div>
<label htmlFor="password" className="block text-sm font-medium text-gray-700">
Password
</label>
<input
id="password"
name="password"
type="password"
autoComplete="new-password"
required
value={formData.password}
onChange={handleChange}
className="mt-1 appearance-none relative block w-full px-3 py-2 border border-gray-300 placeholder-gray-500 text-gray-900 rounded-md focus:outline-none focus:ring-green-500 focus:border-green-500 sm:text-sm"
placeholder="At least 8 characters"
/>
<p className="mt-1 text-xs text-gray-500">
Must contain uppercase, lowercase, and numbers
</p>
</div>
<div>
<label htmlFor="confirmPassword" className="block text-sm font-medium text-gray-700">
Confirm Password
</label>
<input
id="confirmPassword"
name="confirmPassword"
type="password"
autoComplete="new-password"
required
value={formData.confirmPassword}
onChange={handleChange}
className="mt-1 appearance-none relative block w-full px-3 py-2 border border-gray-300 placeholder-gray-500 text-gray-900 rounded-md focus:outline-none focus:ring-green-500 focus:border-green-500 sm:text-sm"
placeholder="Confirm your password"
/>
</div>
</div>
<div>
<button
type="submit"
disabled={isLoading}
className="group relative w-full flex justify-center py-2 px-4 border border-transparent text-sm font-medium rounded-md text-white bg-green-600 hover:bg-green-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-green-500 disabled:opacity-50 disabled:cursor-not-allowed"
>
{isLoading ? 'Creating account...' : 'Create account'}
</button>
</div>
<p className="mt-2 text-center text-xs text-gray-500">
By creating an account, you agree to our{' '}
<a href="#" className="text-green-600 hover:text-green-500">
Terms of Service
</a>{' '}
and{' '}
<a href="#" className="text-green-600 hover:text-green-500">
Privacy Policy
</a>
</p>
</form>
</div>
</div>
</Layout>
)
}
export const getServerSideProps: GetServerSideProps = async (context) => {
const session = await getServerSession(context.req, context.res, authOptions)
if (session) {
return {
redirect: {
destination: '/',
permanent: false,
},
}
}
return {
props: {},
}
}