EntrustSettle/EntrustSettle.Extensions/Middlewares/RequRespLogMiddleware.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using EntrustSettle.Common;
using EntrustSettle.Common.Extensions;
using EntrustSettle.Common.LogHelper;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;

namespace EntrustSettle.Extensions.Middlewares
{
    /// <summary>
    /// 中间件
    /// 记录请求和响应数据
    /// </summary>
    public class RequRespLogMiddleware
    {
        private readonly RequestDelegate _next;

        private readonly ILogger<RequRespLogMiddleware> _logger;

        /// <summary>
        /// 
        /// </summary>
        /// <param name="next"></param>
        public RequRespLogMiddleware(RequestDelegate next, ILogger<RequRespLogMiddleware> logger)
        {
            _next = next;
            _logger = logger;
        }


        public async Task InvokeAsync(HttpContext context)
        {
            if (AppSettings.app("Middleware", "RequestResponseLog", "Enabled").ObjToBool())
            {
                List<string> ignores = AppSettings.app<string>("Middleware", "RequestResponseLog", "IgnoreApis");
                // 过滤，只有接口
                if (context.Request.Path.Value.Contains("api") && !ignores.Exists(x => context.Request.Path.Value.Contains(x, StringComparison.OrdinalIgnoreCase)))
                {
                    context.Request.EnableBuffering();

                    // 存储请求数据
                    await RequestDataLog(context);

                    await _next(context);

                    // 存储响应数据
                    ResponseDataLog(context.Response);
                }
                else
                {
                    await _next(context);
                }
            }
            else
            {
                await _next(context);
            }
        }

        private async Task RequestDataLog(HttpContext context)
        {
            var request = context.Request;
            var sr = new StreamReader(request.Body);
            RequestLogInfo requestResponse = new RequestLogInfo()
            {
                Path = request.Path,
                QueryString = request.QueryString.ToString(),
                BodyData = await sr.ReadToEndAsync()
            };
            var content = JsonConvert.SerializeObject(requestResponse);
            //var content = $" QueryData:{request.Path + request.QueryString}\r\n BodyData:{await sr.ReadToEndAsync()}";

            if (!string.IsNullOrEmpty(content))
            {
                Parallel.For(0, 1, e =>
                {
                    //LogLock.OutSql2Log("RequestResponseLog", new string[] { "Request Data:", content });
                    LogLock.OutLogAOP("RequestResponseLog", context.TraceIdentifier,
                        new string[] { "Request Data -  RequestJsonDataType:" + requestResponse.GetType().ToString(), content });
                });
                //SerilogServer.WriteLog("RequestResponseLog", new string[] { "Request Data:", content });

                request.Body.Position = 0;
            }
        }

        private void ResponseDataLog(HttpResponse response)
        {
            var responseBody = response.GetResponseBody();

            // 去除 Html
            var reg = "<[^>]+>";

            if (!string.IsNullOrEmpty(responseBody))
            {
                var isHtml = Regex.IsMatch(responseBody, reg);
                Parallel.For(0, 1, e =>
                {
                    //LogLock.OutSql2Log("RequestResponseLog", new string[] { "Response Data:", ResponseBody });
                    LogLock.OutLogAOP("RequestResponseLog", response.HttpContext.TraceIdentifier,
                        new string[] { "Response Data -  ResponseJsonDataType:" + responseBody.GetType().ToString(), responseBody });
                });
                //SerilogServer.WriteLog("RequestResponseLog", new string[] { "Response Data:", responseBody });
            }
        }

        private void ResponseDataLog(HttpResponse response, MemoryStream ms)
        {
            ms.Position = 0;
            var responseBody = new StreamReader(ms).ReadToEnd();

            // 去除 Html
            var reg = "<[^>]+>";
            var isHtml = Regex.IsMatch(responseBody, reg);

            if (!string.IsNullOrEmpty(responseBody))
            {
                Parallel.For(0, 1, e =>
                {
                    //LogLock.OutSql2Log("RequestResponseLog", new string[] { "Response Data:", ResponseBody });
                    LogLock.OutLogAOP("RequestResponseLog", response.HttpContext.TraceIdentifier,
                        new string[] { "Response Data -  ResponseJsonDataType:" + responseBody.GetType().ToString(), responseBody });
                });
                //SerilogServer.WriteLog("RequestResponseLog", new string[] { "Response Data:", responseBody });
            }
        }
    }
}