add: hci

Middleware/RequestBodyLoggingMiddleware.cs

@@ -0,0 +1,51 @@
+using System.Text;
+
+namespace Alchegos.MCP.Middleware
+{
+
+    public class RequestBodyLoggingMiddleware
+    {
+        private readonly RequestDelegate _next;
+        private readonly ILogger _logger;
+        public RequestBodyLoggingMiddleware(RequestDelegate next, ILogger<RequestBodyLoggingMiddleware> logger)
+        {
+            _next = next;
+            _logger = logger;
+        }
+
+        public async Task InvokeAsync(HttpContext context)
+        {
+            if (context.Request.Method == HttpMethods.Post && context.Request.ContentLength > 0)
+            {
+                context.Request.EnableBuffering();
+
+                using var reader = new StreamReader(
+                    context.Request.Body,
+                    encoding: Encoding.UTF8,
+                    detectEncodingFromByteOrderMarks: false,
+                    bufferSize: 4096,
+                    leaveOpen: true);
+
+                var requestBody = await reader.ReadToEndAsync();
+                context.Request.Body.Position = 0;
+
+                _logger.LogTrace("Request Body (POST {RequestPath}):\n{RequestBody}", context.Request.Path, requestBody);
+
+            }
+
+            await _next(context);
+        }
+    }
+}
+
+namespace Microsoft.AspNetCore.Builder
+{
+    public static class RequestBodyLoggingMiddlewareExtensions
+    {
+        public static IApplicationBuilder UseRequestBodyLogging(
+            this IApplicationBuilder builder)
+        {
+            return builder.UseMiddleware<Alchegos.MCP.Middleware.RequestBodyLoggingMiddleware>();
+        }
+    }
+}