Xperience Community: Content Security Policy (CSP) Management

Description

Adds a module to the admin site for easy configuration of Content Security Policy (CSP) headers for web channels.

Screenshots

Once installed, a new module appears in the navigation and the dashboard:

Screen for creating a new CSP configuration (on a per source url basis):

Listing shows all configurations, including which web channel they are assigned to.

Library Version Matrix

Xperience Version	Library Version
>= 29.1.4	2.0.0
>= 28.3.0	1.0.0

Dependencies

• ASP.NET Core 8.0
• Xperience by Kentico

Package Installation

Add the package to your application using the .NET CLI

dotnet add package XperienceCommunity.CSP

Quick Start

1. Install NuGet package above.

2. Register the CSP management services using builder.Services.AddXperienceCommunityCspManagement():

   // Program.cs
   
   var builder = WebApplication.CreateBuilder(args);
   
   builder.Services.AddKentico();
   
   // ...
   
   builder.Services.AddXperienceCommunityCspManagement();

3. Register the CSP management middleware using app.UseXperienceCommunityCspManagement():

    var app = builder.Build();
   
    app.UseKentico();
   
    // ...
   
    app.UseXperienceCommunityCspManagement();

4. That's it, launch your website and the module should be installed ready to go! Once you've configured your CSP headers, load a page on the website and check the headers in your browser console.

CSP Nonce Support

This module supports the use of nonces in your CSP headers.

When creating a new CSP configuration, you can enable or disable a nonce being added for the selected directives. This will add a nonce to the header.

You are responsible for adding the nonce to your inline scripts and styles. You can use the CspNonceService to get the current nonce value. This service can be injected into your services, controllers, or views.

public class MyService
{
    private readonly ICspNonceService _cspNonceService;

    public MyService(ICspNonceService cspNonceService)
    {
        _cspNonceService = cspNonceService;
    }

    public string GetNonce()
    {
        return _cspNonceService.Nonce;
    }
}

Contributing

Feel free to submit issues or pull requests to the repository, this is a community package and everyone is welcome to support.

License

Distributed under the MIT License. See LICENSE.md for more information.