LJProxy/Excutor/GetAppUpdateExcutor.cs

using LJProxy.LJLib.Net.SPI.Server;
using LJProxy.Models;
using LJProxy.Services;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace LJProxy.Excutor
{
    public class GetAppUpdateExcutor : ExcutorBase<GetAppUpdateRequest>
    {
        VersionService _service = new VersionService();
        protected override IActionResult ExcuteInternal(GetAppUpdateRequest request, object state)
        {
            HttpRequest httpRequest = state as HttpRequest;
            Regex regx = new Regex(@"GetAppUpdate/(?<apkName>.*?\.apk)", RegexOptions.IgnoreCase);
            var matchResult=regx.Match(httpRequest.Path.ToString());
            if (matchResult.Success)
            {
                var apkName = matchResult.Groups["apkName"]?.Value;
                var fs = _service.GetAPK(apkName);
                if (fs==null)
                {
                    return new NotFoundResult();
                }
                else
                {
                    return new FileContentResult(fs, "application/vnd.android.package-archive");
                }
            }
            else
            {
                return new NotFoundResult();
            }
        }
    }
}