Nicholai 0d38f81e2c feat(auth): implement custom Nextcloud OAuth with auto-provisioning
Replaced NextAuth's built-in OAuth provider (incompatible with Cloudflare
Workers) with custom OAuth implementation using native fetch API.

Features:
- Custom OAuth flow compatible with Cloudflare Workers edge runtime
- Auto-provisions users from Nextcloud based on group membership
- Group-based role assignment (artists, shop_admins, admins)
- Auto-creates artist profiles for users in 'artists' group
- Seamless integration with existing NextAuth session management

Technical changes:
- Added custom OAuth routes: /api/auth/nextcloud/authorize & callback
- Created Nextcloud API client for user provisioning (lib/nextcloud-client.ts)
- Extended credentials provider to accept Nextcloud one-time tokens
- Added user management functions to database layer
- Updated signin UI to use custom OAuth flow
- Added environment variables for OAuth configuration

Documentation:
- Comprehensive setup guide in docs/NEXTCLOUD-OAUTH-SETUP.md
- Updated CLAUDE.md with new authentication architecture

Fixes: NextAuth OAuth incompatibility with Cloudflare Workers (unenv https.request error)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-10-23 02:06:14 +00:00

66 lines
2.0 KiB
TypeScript

import { z } from "zod"
const envSchema = z.object({
// Database
DATABASE_URL: z.string().url(),
DIRECT_URL: z.string().url().optional(),
// Authentication
NEXTAUTH_URL: z.string().url(),
NEXTAUTH_SECRET: z.string().min(1),
// OAuth Providers (optional)
GOOGLE_CLIENT_ID: z.string().optional(),
GOOGLE_CLIENT_SECRET: z.string().optional(),
GITHUB_CLIENT_ID: z.string().optional(),
GITHUB_CLIENT_SECRET: z.string().optional(),
// File Storage (AWS S3 or Cloudflare R2)
AWS_ACCESS_KEY_ID: z.string().min(1),
AWS_SECRET_ACCESS_KEY: z.string().min(1),
AWS_REGION: z.string().min(1),
AWS_BUCKET_NAME: z.string().min(1),
AWS_ENDPOINT_URL: z.string().url().optional(), // For Cloudflare R2
// Application
NODE_ENV: z.enum(["development", "production", "test"]).default("development"),
// Optional: Email service
SMTP_HOST: z.string().optional(),
SMTP_PORT: z.string().optional(),
SMTP_USER: z.string().optional(),
SMTP_PASSWORD: z.string().optional(),
// Optional: Analytics
VERCEL_ANALYTICS_ID: z.string().optional(),
// CalDAV / Nextcloud Integration
NEXTCLOUD_BASE_URL: z.string().url().optional(),
NEXTCLOUD_USERNAME: z.string().optional(),
NEXTCLOUD_PASSWORD: z.string().optional(),
NEXTCLOUD_CALENDAR_BASE_PATH: z.string().default('/remote.php/dav/calendars'),
// Nextcloud OAuth Authentication
NEXTCLOUD_OAUTH_CLIENT_ID: z.string().optional(),
NEXTCLOUD_OAUTH_CLIENT_SECRET: z.string().optional(),
NEXTCLOUD_ARTISTS_GROUP: z.string().default('artists'),
NEXTCLOUD_ADMINS_GROUP: z.string().default('shop_admins'),
})
export type Env = z.infer<typeof envSchema>
// Validate environment variables at boot
function validateEnv(): Env {
try {
return envSchema.parse(process.env)
} catch (error) {
if (error instanceof z.ZodError) {
const missingVars = error.errors.map(err => err.path.join('.')).join(', ')
throw new Error(`Missing or invalid environment variables: ${missingVars}`)
}
throw error
}
}
export const env = validateEnv()