Merge pull request #143 from NLog/aspnet-user-isAuthenticated

added ${aspnet-user-isAuthenticated}
NLog · May 13, 2017 · 3b001e2 · 3b001e2
2 parents 14a5cf9 + 45c2136
commit 3b001e2
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diff --git a/NLog.Web.AspNetCore/LayoutRenderers/AspNetUserIsAuthenticatedLayoutRenderer.cs b/NLog.Web.AspNetCore/LayoutRenderers/AspNetUserIsAuthenticatedLayoutRenderer.cs
@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using NLog.LayoutRenderers;
+using NLog.Web.LayoutRenderers;
+
+namespace NLog.Web.AspNetCore.LayoutRenderers
+{
+    /// <summary>
+    /// Is the user authenticated? 0 = not authenticated, 1 = authenticated
+    /// 
+    /// ${aspnet-user-isAuthenticated}
+    /// </summary>
+    [LayoutRenderer("aspnet-user-isAuthenticated")]
+    public class AspNetUserIsAuthenticatedLayoutRenderer : AspNetLayoutRendererBase
+    {
+        /// <summary>
+        /// Render 0 or 1
+        /// </summary>
+        /// <param name="builder"></param>
+        /// <param name="logEvent"></param>
+        protected override void DoAppend(StringBuilder builder, LogEventInfo logEvent)
+        {
+            var httpContext = HttpContextAccessor.HttpContext;
+            if (httpContext == null)
+            {
+                return;
+            }
+
+            if (httpContext.User?.Identity?.IsAuthenticated == true)
+            {
+                builder.Append(1);
+            }
+            else
+            {
+                builder.Append(0);
+            }
+        }
+    }
+}
diff --git a/NLog.Web/NLog.Web.csproj b/NLog.Web/NLog.Web.csproj
@@ -70,6 +70,8 @@
     <Compile Include="..\NLog.Web.AspNetCore\LayoutRenderers\AspNetSessionValueLayoutRenderer.cs" />
     <Compile Include="..\NLog.Web.AspNetCore\LayoutRenderers\AspNetUserAuthTypeLayoutRenderer.cs" />
     <Compile Include="..\NLog.Web.AspNetCore\LayoutRenderers\AspNetUserIdentityLayoutRenderer.cs" />
+    <Compile Include="..\NLog.Web.AspNetCore\LayoutRenderers\AspNetUserIsAuthenticatedLayoutRenderer.cs" />
+
     <Compile Include="..\NLog.Web.AspNetCore\LayoutRenderers\IISInstanceNameLayoutRenderer.cs" />
     <Compile Include="..\NLog.Web.AspNetCore\LayoutRenderers\AspNetRequestReferrerRenderer.cs" />
     <Compile Include="..\NLog.Web.AspNetCore\LayoutRenderers\AspNetRequestUrlRenderer.cs" />