/**
* @fileoverview HTTP Security Middleware for Satoshi Showdown.
* This middleware leverages Helmet, a collection of middleware functions,
* to set a variety of HTTP headers that enhance the security of the application.
* Helmet helps protect against common web vulnerabilities and security issues by
* appropriately configuring headers like Content-Security-Policy, X-Frame-Options,
* X-Content-Type-Options, and others. Integrating Helmet is a best practice in Express
* applications for improving defense against well-known security vulnerabilities.
*
* @module middlewares/httpSecurityMiddleware
* @requires helmet - A middleware package that sets HTTP headers for security enhancements.
* @see {@link https://helmetjs.github.io/} for detailed documentation and customization options of Helmet.
*/
const helmet = require("helmet");
/**
* Configures and returns the Helmet middleware for enhanced HTTP security.
* This function initializes Helmet with optional custom options, allowing the application
* to define specific security policies and header configurations. The use of Helmet
* significantly improves the application's security posture by mitigating risks such
* as clickjacking, sniffing attacks, and cross-site scripting (XSS). It is recommended
* to fine-tune the Helmet options according to the specific security needs and traffic
* characteristics of the application.
*
* @function httpSecurityMiddleware
* @return {Function} Configured Helmet middleware function for setting various HTTP security headers.
* By default, Helmet sets sensible defaults for various headers, but these can be
* customized to fit the application's security requirements.
*/
const httpSecurityMiddleware = () => {
const helmetOptions = {
// Optionally customize Helmet options here
// Example: frameguard: { action: "deny" }
};
return helmet(helmetOptions);
};
module.exports = httpSecurityMiddleware;