src/Hx.IdentityServer/Controllers/SecurityHeadersAttribute.cs

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

// Copyright (c) Brock Allen & Dominick Baier. All rights reserved.
// Licensed under the Apache License, Version 2.0. See LICENSE in the project root for license information.


using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Filters;

namespace Hx.IdentityServer.Controllers
{
    public class SecurityHeadersAttribute : ActionFilterAttribute
    {
        public override void OnResultExecuting(ResultExecutingContext context)
        {
            var result = context.Result;
            if (result is ViewResult)
            {
                // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options
                if (!context.HttpContext.Response.Headers.ContainsKey("X-Content-Type-Options"))
                {
                    context.HttpContext.Response.Headers.Add("X-Content-Type-Options", "nosniff");
                }

                // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-Frame-Options
                if (!context.HttpContext.Response.Headers.ContainsKey("X-Frame-Options"))
                {
                    context.HttpContext.Response.Headers.Add("X-Frame-Options", "SAMEORIGIN");
                }

                // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy
                var csp = "default-src 'self' https://cdn.staticfile.org/;" +
                    "object-src 'none'; " +
                    "frame-ancestors 'none'; " +
                    "sandbox allow-forms allow-same-origin allow-scripts; " +
                    "style-src 'self' 'unsafe-inline' https://cdn.staticfile.org/;" +
                    "img-src 'self' data: *;" +
                    "script-src 'self' 'unsafe-eval' https://cdn.staticfile.org; ";
                // also consider adding upgrade-insecure-requests once you have HTTPS in place for production
                //csp += "upgrade-insecure-requests;";
                // also an example if you need client images to be displayed from twitter
                // csp += "img-src 'self' https://pbs.twimg.com;";

                // once for standards compliant browsers
                if (!context.HttpContext.Response.Headers.ContainsKey("Content-Security-Policy"))
                {
                    context.HttpContext.Response.Headers.Add("Content-Security-Policy", csp);
                }
                // and once again for IE
                if (!context.HttpContext.Response.Headers.ContainsKey("X-Content-Security-Policy"))
                {
                    context.HttpContext.Response.Headers.Add("X-Content-Security-Policy", csp);
                }

                // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Referrer-Policy
                var referrer_policy = "no-referrer";
                if (!context.HttpContext.Response.Headers.ContainsKey("Referrer-Policy"))
                {
                    context.HttpContext.Response.Headers.Add("Referrer-Policy", referrer_policy);
                }
            }
        }