🛠 feat: Enhance Redis Integration, Rate Limiters & Log Headers (#6462)

* feat: Implement Redis-based rate limiting, initially import limits

* feat: Enhance rate limiters with Redis support and custom prefixes

* chore: import orders

* chore: update JSDoc for next middleware parameter type in ban and limiter middleware

* feat: add logHeaders middleware to log forwarded headers in requests

* refactor: change log level from info to debug for Redis rate limiters

* feat: increase Redis max listeners and refactor session storage to use Keyv

api/server/middleware/logHeaders.js

@@ -0,0 +1,32 @@
+const { logger } = require('~/config');
+
+/**
+ * Middleware to log Forwarded Headers
+ * @function
+ * @param {ServerRequest} req - Express request object containing user information.
+ * @param {ServerResponse} res - Express response object.
+ * @param {import('express').NextFunction} next - Next middleware function.
+ * @throws {Error} Throws an error if the user exceeds the concurrent request limit.
+ */
+const logHeaders = (req, res, next) => {
+  try {
+    const forwardedHeaders = {};
+    if (req.headers['x-forwarded-for']) {
+      forwardedHeaders['x-forwarded-for'] = req.headers['x-forwarded-for'];
+    }
+    if (req.headers['x-forwarded-host']) {
+      forwardedHeaders['x-forwarded-host'] = req.headers['x-forwarded-host'];
+    }
+    if (req.headers['x-forwarded-proto']) {
+      forwardedHeaders['x-forwarded-proto'] = req.headers['x-forwarded-proto'];
+    }
+    if (Object.keys(forwardedHeaders).length > 0) {
+      logger.debug('X-Forwarded headers detected in OAuth request:', forwardedHeaders);
+    }
+  } catch (error) {
+    logger.error('Error logging X-Forwarded headers:', error);
+  }
+  next();
+};
+
+module.exports = logHeaders;