添加项目文件。

TightWiki/ExceptionHandlingMiddleware.cs

@@ -0,0 +1,58 @@
+using System.Text;
+using TightWiki.Exceptions;
+using TightWiki.Models;
+using TightWiki.Repository;
+
+namespace TightWiki
+{
+    /// <summary>
+    /// Intercepts exceptions so that we can throw "UnauthorizedException" from controllers to simplify permissions.
+    /// </summary>
+    public class ExceptionHandlingMiddleware
+    {
+        private readonly RequestDelegate _next;
+        private readonly ILogger<ExceptionHandlingMiddleware> _logger;
+
+        public ExceptionHandlingMiddleware(RequestDelegate next, ILogger<ExceptionHandlingMiddleware> logger)
+        {
+            _next = next;
+            _logger = logger;
+        }
+
+        public async Task InvokeAsync(HttpContext context)
+        {
+            try
+            {
+                await _next(context);
+            }
+            catch (UnauthorizedException ex)
+            {
+                _logger.LogError(ex, ex.Message);
+                context.Response.StatusCode = StatusCodes.Status401Unauthorized;
+                context.Response.ContentType = "application/json";
+                await context.Response.WriteAsync(string.Empty);
+            }
+            catch (Exception ex)
+            {
+                string request = $"{context.Request.Path}{context.Request.QueryString}";
+                var routeValues = new StringBuilder();
+
+                foreach (var rv in context.Request.RouteValues)
+                {
+                    routeValues.AppendLine($"{rv},");
+                }
+                if (routeValues.Length > 1) routeValues.Length--; //Trim trailing comma.
+
+                var exceptionText = $"IP Address: {context.Connection.RemoteIpAddress},\r\n Request: {request},\r\n RouteValues: {routeValues}\r\n";
+
+                _logger.LogError(ex, exceptionText);
+                ExceptionRepository.InsertException(ex, exceptionText);
+
+                context.Response.StatusCode = StatusCodes.Status500InternalServerError;
+                context.Response.ContentType = "application/json";
+
+                context.Response.Redirect($"{GlobalConfiguration.BasePath}/Utility/Notify?ErrorMessage={Uri.EscapeDataString("An unexpected error has occurred. The details of this exception have been logged.")}");
+            }
+        }
+    }
+}