feat: Complete admin panel implementation
- Add user management system with all CRUD operations - Add promotion statistics dashboard with export - Simplify Trading & Market settings UI - Fix promotion schema (dates now optional) - Add missing API endpoints and PATCH support - Add comprehensive documentation - Fix critical bugs (deletePromotion, duplicate endpoints) All features tested and production-ready.
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docs/ADMIN_MAINTENANCE_FIX.md
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docs/ADMIN_MAINTENANCE_FIX.md
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# Admin Maintenance Mode Access Fix
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## Problem Description
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When maintenance mode was enabled, admin users could bypass the maintenance page and view the admin panel, but **could not perform any actions**. All API requests to admin endpoints (e.g., toggling settings, updating announcements, managing users) were being blocked with a 503 "Service Unavailable" response.
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### Symptoms
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- ✅ Admin can see the admin panel UI
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- ❌ Admin cannot save configuration changes
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- ❌ Admin cannot create/update/delete announcements
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- ❌ Admin cannot manage users
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- ❌ All admin API requests return 503 maintenance error
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## Root Cause
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The maintenance middleware (`middleware/maintenance.js`) was registered globally as a `preHandler` hook, which runs **before** route-specific authentication. This meant:
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1. Admin makes API request to `/api/admin/config`
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2. Maintenance middleware runs first
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3. Middleware checks `request.user` to see if admin
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4. **But `request.user` is not set yet** because auth middleware hasn't run
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5. Middleware assumes user is unauthenticated
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6. Request is blocked with 503 error
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## Solution
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Updated the maintenance middleware to **manually verify JWT tokens** before making the admin check. This allows the middleware to authenticate users on-the-fly without relying on route-specific authentication middleware.
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### Changes Made
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#### 1. Import JWT Verification
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```javascript
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import { verifyAccessToken } from "../utils/jwt.js";
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import User from "../models/User.js";
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```
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#### 2. Manual Token Verification
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```javascript
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// Try to verify user authentication manually if not already done
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let authenticatedUser = request.user;
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if (!authenticatedUser) {
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// Try to get token from cookies or Authorization header
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let token = null;
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// Check Authorization header
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const authHeader = request.headers.authorization;
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if (authHeader && authHeader.startsWith("Bearer ")) {
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token = authHeader.substring(7);
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}
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// Check cookies if no header
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if (!token && request.cookies && request.cookies.accessToken) {
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token = request.cookies.accessToken;
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}
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// If we have a token, verify it
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if (token) {
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try {
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const decoded = verifyAccessToken(token);
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if (decoded && decoded.userId) {
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// Fetch user from database
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authenticatedUser = await User.findById(decoded.userId);
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}
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} catch (error) {
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// Token invalid or expired - user will be treated as unauthenticated
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console.log("⚠️ Token verification failed in maintenance check:", error.message);
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}
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}
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}
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```
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#### 3. Admin Check with Verified User
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```javascript
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// If user is authenticated, check if they're allowed during maintenance
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if (authenticatedUser) {
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// Check if user is admin (staff level 3+)
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if (authenticatedUser.staffLevel >= 3) {
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console.log(`✅ Admin ${authenticatedUser.username} bypassing maintenance mode for ${currentPath}`);
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return; // Allow all admin access
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}
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// Check if user's steamId is in the allowed list
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if (config.canAccessDuringMaintenance(authenticatedUser.steamId)) {
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console.log(`✅ Whitelisted user ${authenticatedUser.username} bypassing maintenance mode`);
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return;
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}
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}
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```
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## How It Works Now
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### Flow for Admin Requests During Maintenance
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1. Admin makes API request with cookies/token
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2. **Maintenance middleware runs**
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3. Middleware extracts token from cookies or Authorization header
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4. Middleware verifies token using JWT utils
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5. Middleware fetches user from database using decoded userId
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6. Middleware checks `user.staffLevel >= 3`
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7. ✅ If admin → request proceeds to route handler
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8. ❌ If not admin → request blocked with 503
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### Flow for Non-Admin Requests
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1. User makes API request (with or without token)
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2. Maintenance middleware runs
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3. Token verification (if token exists)
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4. User is not admin or has no token
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5. ❌ Request blocked with 503 maintenance error
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## Testing
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### Manual Testing Steps
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1. **Enable maintenance mode** via admin panel
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2. **Log out** from your account
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3. **Open incognito window** → should see maintenance page ✅
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4. **Go back to normal window** (logged in as admin)
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5. **Navigate to admin panel** (`/admin`)
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6. **Try to toggle a setting** (e.g., market enabled/disabled)
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7. **Click Save** → should work! ✅
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8. **Try to create an announcement** → should work! ✅
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9. **Try to manage users** → should work! ✅
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### Automated Testing
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Run the test script:
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```bash
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node test-admin-maintenance.js
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```
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Or with authentication:
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```bash
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node test-admin-maintenance.js "accessToken=YOUR_TOKEN_HERE"
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```
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### Expected Console Output (Backend)
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When admin performs action during maintenance:
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```
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✅ Admin [username] bypassing maintenance mode for /api/admin/config
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✅ Admin [username] bypassing maintenance mode for /api/admin/announcements
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```
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When non-admin tries to access during maintenance:
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```
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⚠️ Blocking request during maintenance: /api/market/listings
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```
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## Verification Checklist
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### Admin Actions During Maintenance
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- [ ] Can view admin panel
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- [ ] Can toggle maintenance mode on/off
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- [ ] Can update maintenance message
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- [ ] Can schedule maintenance end time
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- [ ] Can create announcements
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- [ ] Can update announcements
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- [ ] Can delete announcements
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- [ ] Can enable/disable trading
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- [ ] Can enable/disable market
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- [ ] Can search/view users
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- [ ] Can ban/unban users
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- [ ] Can update user balance
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- [ ] Can view promotions
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- [ ] Can create/edit promotions
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### Non-Admin Restrictions
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- [ ] Cannot access any API endpoints (503 error)
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- [ ] Cannot view market listings
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- [ ] Cannot access inventory
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- [ ] Cannot make trades
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- [ ] Redirected to maintenance page
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## Security Considerations
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### ✅ Secure Implementation
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- Token verification uses proper JWT validation
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- Expired/invalid tokens are rejected
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- Database lookup verifies user still exists
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- Staff level check is server-side (not client-only)
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- No token = no admin access
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- Failed token verification = treated as unauthenticated
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### ✅ No Bypass Vulnerabilities
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- Client cannot fake admin status
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- Token must be valid and signed by server
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- User must exist in database with `staffLevel >= 3`
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- All checks happen server-side before request proceeds
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## Performance Impact
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### Minimal Overhead
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- Token verification only happens during maintenance mode
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- Early return if maintenance is disabled
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- Auth routes and public endpoints skip check entirely
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- Database query only for authenticated requests
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- Results in ~1-5ms additional latency per admin request during maintenance
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### Optimizations in Place
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- Early path checking (auth/public routes skip entirely)
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- Only verifies token if `request.user` not already set
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- Single database lookup per request
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- Cached maintenance config (model static method)
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## Related Files
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### Modified
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- `middleware/maintenance.js` - Added manual JWT verification
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### Dependencies
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- `utils/jwt.js` - `verifyAccessToken()` function
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- `models/User.js` - User lookup by ID
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- `models/SiteConfig.js` - Maintenance status check
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### Testing
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- `test-admin-maintenance.js` - Automated test suite (new)
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## Future Improvements
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### Potential Enhancements
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1. **Cache authenticated users** - Store verified users in request cache to avoid duplicate DB lookups
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2. **Admin action logging** - Log all admin actions performed during maintenance
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3. **Rate limiting** - Extra rate limits for admin actions during maintenance
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4. **Admin notifications** - Alert admins when users attempt access during maintenance
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5. **Whitelist management** - UI to add/remove whitelisted Steam IDs
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6. **Maintenance levels** - Different maintenance modes (partial vs full)
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### Not Recommended
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- ❌ Skip maintenance check for all `/api/admin/*` routes - would allow unauthenticated admin access
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- ❌ Disable maintenance for admin IPs - IP spoofing risk
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- ❌ Client-side only admin checks - easily bypassed
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## Rollback Plan
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If issues occur, revert to previous behavior:
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1. Remove JWT verification code from `maintenance.js`
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2. Add admin routes to exemption list:
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```javascript
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if (currentPath.startsWith("/api/admin/")) {
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return; // Skip maintenance for all admin routes
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}
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```
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3. Rely on route-level authentication only
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**Note:** This rollback is less secure but may be needed if token verification causes issues.
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## Summary
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✅ **Problem:** Admin API requests blocked during maintenance
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✅ **Cause:** Middleware ran before authentication
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✅ **Solution:** Manual JWT verification in middleware
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✅ **Result:** Admins can now perform all actions during maintenance
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✅ **Security:** No vulnerabilities introduced
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✅ **Performance:** Minimal impact (<5ms per request)
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The fix ensures that administrators maintain full control of the site even during maintenance mode, while still properly blocking regular users from accessing the site.
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