From 32532078d6cdb1933fc55986a292f27be5645f43 Mon Sep 17 00:00:00 2001
From: "Chris Ross (ASP.NET)" <chrross@microsoft.com>
Date: Mon, 22 Oct 2018 14:51:29 -0700
Subject: [PATCH] Log binary data as a parameter #2860

---
 samples/SampleApp/Startup.cs                       | 1 +
 src/Kestrel.Core/Adapter/Internal/LoggingStream.cs | 7 +++++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/samples/SampleApp/Startup.cs b/samples/SampleApp/Startup.cs
index ad38e3920d..32890238ef 100644
--- a/samples/SampleApp/Startup.cs
+++ b/samples/SampleApp/Startup.cs
@@ -66,6 +66,7 @@ namespace SampleApp
             var hostBuilder = new WebHostBuilder()
                 .ConfigureLogging((_, factory) =>
                 {
+                    factory.SetMinimumLevel(LogLevel.Debug);
                     factory.AddConsole();
                 })
                 .ConfigureAppConfiguration((hostingContext, config) =>
diff --git a/src/Kestrel.Core/Adapter/Internal/LoggingStream.cs b/src/Kestrel.Core/Adapter/Internal/LoggingStream.cs
index e591d4acf4..42722f2413 100644
--- a/src/Kestrel.Core/Adapter/Internal/LoggingStream.cs
+++ b/src/Kestrel.Core/Adapter/Internal/LoggingStream.cs
@@ -174,13 +174,16 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Core.Adapter.Internal
                 builder.Append(" ");
             }
             builder.AppendLine();
+            builder.Append("{0}");
+
+            var rawDataBuilder = new StringBuilder();
             // Write the bytes as if they were ASCII
             for (int i = 0; i < buffer.Length; i++)
             {
-                builder.Append((char)buffer[i]);
+                rawDataBuilder.Append((char)buffer[i]);
             }
 
-            _logger.LogDebug(builder.ToString());
+            _logger.LogDebug(builder.ToString(), rawDataBuilder.ToString());
         }
 
         // The below APM methods call the underlying Read/WriteAsync methods which will still be logged.