AntiXssUF

跨站脚本攻击（XSS）过滤器，以白名单的过滤策略，支持多种过滤策略，可以根据业务场景选择适合的过滤策略，或者根据用户角色动态绑定过滤策略，支持OwaspAntisamy项目的配置，支持json格式的配置； 使用方法：

    public void ConfigureServices(IServiceCollection services)
    {
        //添加策略和设置默认策略
        services.AddXssFilter(opt=>opt.DefaultSchemeName= "DefaultPolicy")
            .AddScheme<AntisamyPolicy>("antisamy", () => File.ReadAllTextAsync(Path.Combine(HostEnvironment.ContentRootPath, "resources/antisamy.xml")))
            .AddScheme<AntisamyPolicy>("anythinggoes", () => File.ReadAllTextAsync(Path.Combine(HostEnvironment.ContentRootPath, "resources/antisamy-anythinggoes.xml")))
            .AddScheme<AntisamyPolicy>("ebay", () => File.ReadAllTextAsync(Path.Combine(HostEnvironment.ContentRootPath, "resources/antisamy-ebay.xml")))
            .AddScheme<AntisamyPolicy>("myspace", () => File.ReadAllTextAsync(Path.Combine(HostEnvironment.ContentRootPath, "resources/antisamy-myspace.xml")))
            .AddScheme<AntisamyPolicy>("slashdot", () => File.ReadAllTextAsync(Path.Combine(HostEnvironment.ContentRootPath, "resources/antisamy-slashdot.xml")))
            .AddScheme<AntisamyPolicy>("test", () => File.ReadAllTextAsync(Path.Combine(HostEnvironment.ContentRootPath, "resources/antisamy-test.xml")))
            .AddScheme<JsonFilterPolicy>("DefaultPolicy", () => File.ReadAllTextAsync(Path.Combine(HostEnvironment.ContentRootPath, "resources/DefaultPolicy.json")));
        ;
        //添加模型绑定器
        services.AddControllers(options =>
        {
            options.ModelBinderProviders.Insert(0, new RichTextBinderProvider());
        });
        services.AddControllersWithViews();
    }
    //依赖注入
    public HomeController(IFilterPolicyFactory policyFactory)
    {
        this.policyFactory = policyFactory;
    }
    public async Task<IActionResult> Test(string source) {
        var policyName="ebay"//策略名称
        var filter=await policyFactory.CreateHtmlFilter(policyName);//创建过滤器
        var clean = filter.Filters(source);//过滤危险代码
        return Content(clean);
    }
    //模型绑定过滤策略
    public class TestModel
    {
       public string Name { get; set; }
        [XssSchemeName("ebay")]
        public RichText RichText { get; set; }
    }
    public IActionResult Test(TestModel model)
    {
        string clean = model?.RichText;//这里自动过滤危险代码
        return Content(clean??string.Empty);
    }
    //使用参数绑定过滤策略
    public IActionResult Test([XssSchemeName("ebay")] RichText richText)
    {
        string clean = richText;//这里自动过滤危险代码
        return Content(clean??string.Empty);
    }