feat: pin not working when rate limited redirect fix & allow non https baseUrl pin fix (#32)

* feat: ratelimit pin not working with baseUrl fix

* Remove white space changes

* Refactor PIN verification error handling and input state management

- Improve error handling in login page JavaScript
- Standardize API response structure with explicit success and error fields
- Enhance user feedback for PIN authentication failures
- Implement more robust input state management during login attempts

* Fix PIN verification logic in root route

- Improve PIN verification check to handle missing cookie scenario
- Add explicit check for cookie existence before comparing PIN
- Enhance root route authentication logic for more robust access control

public/login.html

@@ -78,7 +78,6 @@
         const createPinInputs = (length) => {
             const form = document.getElementById('pin-form');
             form.innerHTML = '';  // Clear existing inputs
-            
             for (let i = 0; i < length; i++) {
                 const input = document.createElement('input');
                 input.type = 'password';
@@ -130,29 +129,32 @@
                     headers: { 'Content-Type': 'application/json' },
                     body: JSON.stringify({ pin })
                 });
-
                 const data = await response.json();
+                
+                // Simplified success and error handling
                 if (data.success) {
                     window.location.href = '/';
                 } else {
                     // Show error message
-                    document.getElementById('pin-error').textContent = data.error;
+                    document.getElementById('pin-error').textContent = data.error || 'Authentication failed';
+                    
+                    // Determine if it's a lockout scenario
+                    const isLockedOut = data.error.includes('Too many PIN verification attempts');
                     
-                    // Only clear inputs and focus if not locked out
-                    if (!data.error.includes('try again in')) {
                     const inputs = [...document.querySelectorAll('.pin-digit')];
+                    if (isLockedOut) {
+                        // Disable inputs if locked out
+                        inputs.forEach(input => {
+                            input.disabled = true;
+                            input.classList.add('locked');
+                        });
+                    } else {
+                        // Reset inputs for other error types
                         inputs.forEach(input => {
                             input.value = '';
                             input.classList.remove('filled');
                         });
                         inputs[0].focus();
-                    } else {
-                        // If locked out, disable all inputs
-                        const inputs = [...document.querySelectorAll('.pin-digit')];
-                        inputs.forEach(input => {
-                            input.disabled = true;
-                            input.classList.add('locked');
-                        });
                     }
                 }
             } catch (err) {

src/app.js

@@ -14,6 +14,7 @@ const { config, validateConfig } = require('./config');
 const logger = require('./utils/logger');
 const { ensureDirectoryExists } = require('./utils/fileUtils');
 const { securityHeaders, requirePin } = require('./middleware/security');
+const { safeCompare } = require('./utils/security');
 const { initUploadLimiter, pinVerifyLimiter, downloadLimiter } = require('./middleware/rateLimiter');
 
 // Create Express app
@@ -40,7 +41,8 @@ app.use('/api/files', requirePin(config.pin), downloadLimiter, fileRoutes);
 
 // Root route
 app.get('/', (req, res) => {
-  if (config.pin && !req.cookies.DUMBDROP_PIN) {
+  // Check if the PIN is configured and the cookie exists
+  if (config.pin && (!req.cookies?.DUMBDROP_PIN || !safeCompare(req.cookies.DUMBDROP_PIN, config.pin))) {
     return res.redirect('/login.html');
   }
   

src/routes/auth.js

@@ -24,11 +24,11 @@ router.post('/verify-pin', (req, res) => {
     if (!config.pin) {
       res.cookie('DUMBDROP_PIN', '', {
         httpOnly: true,
-        secure: process.env.NODE_ENV === 'production',
+        secure: req.secure || (process.env.NODE_ENV === 'production' && config.baseUrl.startsWith('https')),
         sameSite: 'strict',
         path: '/'
       });
-      return res.json({ success: true });
+      return res.json({ success: true, error: null });
     }
 
     // Validate PIN format
@@ -36,6 +36,7 @@ router.post('/verify-pin', (req, res) => {
     if (!cleanedPin) {
       logger.warn(`Invalid PIN format from IP: ${ip}`);
       return res.status(401).json({ 
+        success: false,
         error: 'Invalid PIN format. PIN must be 4-10 digits.' 
       });
     }
@@ -49,7 +50,8 @@ router.post('/verify-pin', (req, res) => {
       
       logger.warn(`Login attempt from locked out IP: ${ip}`);
       return res.status(429).json({ 
-        error: `Too many attempts. Please try again in ${timeLeft} minutes.`
+        success: false,
+        error: `Too many PIN verification attempts. Please try again in ${timeLeft} minutes.`
       });
     }
 
@@ -61,13 +63,13 @@ router.post('/verify-pin', (req, res) => {
       // Set secure cookie with cleaned PIN
       res.cookie('DUMBDROP_PIN', cleanedPin, {
         httpOnly: true,
-        secure: process.env.NODE_ENV === 'production',
+        secure: req.secure || (process.env.NODE_ENV === 'production' && config.baseUrl.startsWith('https')),
         sameSite: 'strict',
         path: '/'
       });
 
       logger.info(`Successful PIN verification from IP: ${ip}`);
-      res.json({ success: true });
+      res.json({ success: true, error: null });
     } else {
       // Record failed attempt
       const attempts = recordAttempt(ip);
@@ -78,12 +80,12 @@ router.post('/verify-pin', (req, res) => {
         success: false, 
         error: attemptsLeft > 0 ? 
           `Invalid PIN. ${attemptsLeft} attempts remaining.` : 
-          'Too many attempts. Account locked for 15 minutes.'
+          'Too many PIN verification attempts. Account locked for 15 minutes.'
       });
     }
   } catch (err) {
     logger.error(`PIN verification error: ${err.message}`);
-    res.status(500).json({ error: 'Authentication failed' });
+    res.status(500).json({ success: false, error: 'Authentication failed' });
   }
 });