Create NonceHtmlHelper.cs

framework/src/Volo.Abp.AspNetCore/Volo/Abp/AspNetCore/Security/NonceHtmlHelper.cs

@@ -0,0 +1,20 @@
+using Microsoft.AspNetCore.Html;
+using Microsoft.AspNetCore.Mvc.Rendering;
+using Microsoft.AspNetCore.Mvc.ViewFeatures;
+
+namespace Volo.Abp.AspNetCore.Security;
+
+public static class NonceHtmlHelper
+{
+    public static IHtmlContent ScriptWithNonce(this HtmlHelper htmlHelper, string scriptUrl)
+    {
+        var tagBuilder = new TagBuilder("script");
+        tagBuilder.Attributes.Add("src", scriptUrl);
+        if(htmlHelper.ViewContext.HttpContext.Items.TryGetValue(AbpAspNetCoreConsts.ScriptNonceKey, out var nonce) && nonce is string nonceString && !string.IsNullOrEmpty(nonceString))
+        {
+            tagBuilder.Attributes.Add("nonce", nonceString);
+        }
+
+        return tagBuilder;
+    }
+}