How do I configure options in DI and use them globally

Shezi 0
Viewed 53

I am using the package AspnetCore.HtmlSanitizer. Here

I am trying to register the service with the default options and only remove certain tags and attributes. For example, I am OK with all the default attributes except "href" how do I remove it globally through startup.cs?

 public void ConfigureServices(IServiceCollection services)
    {
       services.Configure<HtmlSanitizerOptions>(options =>
        {
            options.AllowedTags.Remove("a");
            options.AllowedAttributes.Remove("href");
        });


        // Services
        services.AddSingleton<IHtmlSanitizer, HtmlSanitizer>();

This is not removing the "a" and "href" from the list of attributes and tags.

I simply want to configure it in startup.cs and use the same options globally across my application.

Can someone please help

asp.net-core c#
2 Answers

Construct the options object in DI and send it with the HtmlSanitizer object.

services.AddSingleton<IHtmlSantitizer, HtmlSanitizer>(sp =>
{
    var opts = new HtmlSanitizerOptions();

    opts.AllowedTags.Remove("a");
    opts.AllowedAttributes.Remove("href");

    return new HtmlSanitizer(opts);
});
zep4260

I was answered here

Basically this code would work fine:

services.AddSingleton<Ganss.XSS.IHtmlSanitizer, Ganss.XSS.HtmlSanitizer>(m =>
{
    var options = new Ganss.XSS.HtmlSanitizerOptions
    {
        AllowedTags = Ganss.XSS.HtmlSanitizer.DefaultAllowedTags,
        AllowedAttributes = Gans.XSS.HtmlSanitizer.DefaultAllowedAttributes
    };

    options.AllowedTags.Remove("a");
    options.AllowedAttributes.Remove("href");

    var sanitizer = new Ganss.XSS.HtmlSanitizer(options);
    return sanitizer;
});
Shezi0
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