ComplianceServer/oldcode/WxService/FilePath2.ashx.cs

using Ninject;
using System;
using System.IO;
using System.Web;
using WX.CRM.Common;
using WX.CRM.DAL.Redis;
using WX.CRM.IBLL.Wx;
using WX.CRM.WebHelper.Infrastructure;
namespace WxService
{
    /// <summary>
    /// WxFileUpload2 的摘要说明
    /// </summary>
    public class FilePath2 : IHttpHandler
    {
        private static string _shareName;
        private static string _isShare;
        private IWx_MsgKey msgkey = NinjectControllerFactory.ninjectKernel.Get<IWx_MsgKey>();
        static FilePath2()
        {
            //用户名勿比指定共享服务器的IP或名称，否则会引起1312错误
            _isShare = Utility.GetSettingByKey("IsShare");
            if (!string.IsNullOrEmpty(_isShare))
            {
                _shareName = Utility.GetSettingByKey("NetUseShareName") ?? @"\\192.168.1.171\weixin";
                string user = Utility.GetSettingByKey("NetUseUser") ?? @"192.168.1.171\admin";
                string pwd = Utility.GetSettingByKey("NetUsePwd") ?? "read,./1";
                NetUseHelper.Build(_shareName, user, pwd, string.Empty);//不指定盘符，避免引起盘符被占用的错误
            }
        }

        public void ProcessRequest(HttpContext context)
        {
            try
            {
                context.Response.ContentType = "text/plain";
                var msgSvrId = context.Request.Params["msgSvrId"];
                var msgType = context.Request.Params["msgType"];

                string keyname = "wx:" + msgSvrId;
                var redis = new RedisString<string>(keyname);
                //存放在数据库中的路径
                var filePath = redis.Get();
                if (string.IsNullOrEmpty(filePath))
                {
                    filePath = msgkey.GetFile(keyname);//如果redis查找不到，就从数据库中查找一次
                }
                //没有找到路径
                if (string.IsNullOrEmpty(filePath))
                {
                    if (msgType == "3" || msgType == "47")
                    {
                        //byte[] buffurPic = Convert.FromBase64String("data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQImWNgYGBgAAAABQABh6FO1AAAAABJRU5ErkJggg==");
                        var buffurPic = Convert.FromBase64String("iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQImWNgYGBgAAAABQABh6FO1AAAAABJRU5ErkJggg==");
                        context.Response.Clear();
                        context.Response.ContentType = "image/gif";
                        context.Response.BufferOutput = true;
                        context.Response.OutputStream.Write(buffurPic, 0, buffurPic.Length);
                        context.Response.Flush();
                    }
                    return;
                }

                //存放在共享目录中的路径
                var shareFilePath = _shareName + @"\WXFILE" + filePath;
                var fileName = Path.GetFileName(filePath);
                if (msgType == "3" || msgType == "47")
                {
                    //图片处理
                    var fs = new FileStream(shareFilePath, FileMode.Open, FileAccess.Read);
                    //var fs = new FileStream(@"\\192.168.1.171\weixin\uploadfile\20181\775b1ae28ef3c43f1a8ad02fe0cfd0c0.jpg", FileMode.Open, FileAccess.Read);
                    byte[] buffur = new byte[fs.Length];
                    fs.Read(buffur, 0, (int)fs.Length);
                    string strPic = Convert.ToBase64String(buffur);

                    byte[] buffurPic = Convert.FromBase64String(strPic);

                    context.Response.Clear();
                    context.Response.ContentType = "image/jpeg";
                    context.Response.BufferOutput = true;
                    context.Response.OutputStream.Write(buffurPic, 0, buffurPic.Length);
                    context.Response.Flush();
                }
                else if (msgType == "34")
                {
                    //语音处理
                    var fileNameWithoutExt = Path.GetFileNameWithoutExtension(filePath);
                    shareFilePath = _shareName + @"\WXFILE\uploadfile\audio\" + fileNameWithoutExt + ".mp3";
                    FileStream fs = new FileStream(shareFilePath, FileMode.Open, FileAccess.Read);
                    byte[] buffur = new byte[fs.Length];
                    fs.Read(buffur, 0, (int)fs.Length);
                    string strPic = Convert.ToBase64String(buffur);

                    byte[] buffurPic = Convert.FromBase64String(strPic);

                    context.Response.Clear();
                    context.Response.ContentType = "audio/mp3";
                    context.Response.BufferOutput = true;
                    context.Response.OutputStream.Write(buffurPic, 0, buffurPic.Length);
                    context.Response.Flush();
                }
                else if (msgType == "43" || msgType == "49")
                {
                    //视频、办公文件，直接下载
                    byte[] buffurPic = File.ReadAllBytes(shareFilePath);

                    context.Response.Clear();
                    context.Response.ContentType = "application/octet-stream";
                    context.Response.AddHeader("Content-Disposition", "attachment;filename=" + fileName + ";");
                    context.Response.BufferOutput = true;
                    context.Response.OutputStream.Write(buffurPic, 0, buffurPic.Length);
                    context.Response.Flush();
                }

                HttpContext.Current.Response.Write(string.Empty);

            }
            catch (Exception ex)
            {
                LogHelper.Error(ex.ToString());
                HttpContext.Current.Response.Write(string.Empty);
            }
        }

        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }
}