src/Library/NetPro.ResponseCache/Common.cs

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using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc.Formatters;
using System;
using System.IO;
using System.Text;
using System.Threading.Tasks;

namespace NetPro.ResponseCache
{
    internal class Common
    {
        internal static async Task<string> ReadAsString(HttpContext context)
        {
            try
            {
                if (context.Request.ContentLength > 0)
                {
                    EnableRewind(context.Request);
                    var encoding = GetRequestEncoding(context.Request);
                    return await ReadStreamRequest(context, encoding);
                }
                return null;

            }
            catch (Exception ex) when (!ex.Message?.Replace(" ", string.Empty).ToLower().Contains("unexpectedendofrequestcontent") ?? true)
            {
                Console.WriteLine($"[ReadAsString] 共享请求body读取body出错");
                return null;
            }
        }

        internal static async Task<string> ReadStreamRequest(HttpContext context, Encoding encoding)
        {
            try
            {
                using (StreamReader sr = new StreamReader(context.Request.Body, encoding, true, 1024, true))
                {
                    if (context.RequestAborted.IsCancellationRequested)
                        return null;
                    var str = await sr.ReadToEndAsync();
                    context.Request.Body.Seek(0, SeekOrigin.Begin);
                    return str;
                }
            }
            catch (Exception)
            {
                return null;
            }
        }

        internal static async Task<string> ReadStreamResponse(HttpContext context)
        {
            try
            {
                using (StreamReader sr = new StreamReader(context.Response.Body, Encoding.UTF8, true, 1024, true))
                {
                    if (context.RequestAborted.IsCancellationRequested)
                        return null;
                    var str = await sr.ReadToEndAsync();
                    context.Response.Body.Seek(0, SeekOrigin.Begin);