/**
 * Created by visual studio2010
 * User: xuheng
 * Date: 12-3-7
 * Time: 下午16:29
 * To change this template use File | Settings | File Templates.
 */
using System;
using System.Web;
using System.IO;
using System.Text.RegularExpressions;
using System.Web.SessionState;
namespace Mtxfw.VipSite
{
    
    public class imageManager : IHttpHandler, IRequiresSessionState
    {
        public void ProcessRequest(HttpContext context)
        {
            Mtxfw.Utility.Config config = new Mtxfw.Utility.Config("");
            if (context.Session["MemberId"] != null && context.Session["MemberName"] != null)
            {
                context.Response.ContentType = "text/plain";

                string[] paths = {"Files/Image/"}; //需要遍历的目录列表，最好使用缩略图地址，否则当网速慢时可能会造成严重的延时
                string[] filetype = config.webUpType.Split(',');                //文件允许格式

                string action = context.Server.HtmlEncode(context.Request["action"]);

                if (action == "get")
                {
                    String str = String.Empty;

                    foreach (string path in paths)
                    {
                        DirectoryInfo info = new DirectoryInfo(context.Server.MapPath("/" + path));

                        //目录验证
                        if (info.Exists)
                        {
                            foreach (FileInfo fi in info.GetFiles())
                            {
                                if (Array.IndexOf(filetype, fi.Extension.Replace(".","")) != -1)
                                {
                                    str += path + fi.Name + "ue_separate_ue";
                                }
                            }
                            DirectoryInfo[] infoArr = info.GetDirectories();
                            foreach (DirectoryInfo tmpInfo in infoArr)
                            {
                                if (config.webImgAllowSize.IndexOf(tmpInfo.Name) == -1)
                                {
                                    foreach (FileInfo fi in tmpInfo.GetFiles())
                                    {
                                        if (Array.IndexOf(filetype, fi.Extension.Replace(".", "")) != -1)
                                        {
                                            str += path + tmpInfo.Name + "/" + fi.Name + "ue_separate_ue";
                                        }
                                    }
                                }
                            }
                        }
                    }

                    context.Response.Write(str);
                }
                if (action == "del")
                {
                    string[] delpics = context.Server.UrlDecode(context.Request["delpics"]).Split(',');
                    foreach (string strpic in delpics)
                    {
                        string pic = strpic;
                        if (pic != "")
                        {
                            bool b = true;
                            foreach (string path in paths)
                            {
                                if (pic.IndexOf(path) != -1)
                                {
                                    b = false;
                                }
                                else
                                {
                                    pic = paths + pic;
                                }
                            }
                            if (!b)
                            {
                                try
                                {
                                    if (File.Exists(context.Server.MapPath(pic)))
                                    {
                                        File.Delete(context.Server.MapPath(pic));
                                    }
                                }
                                catch (Exception err)
                                {
                                    Mtxfw.Utility.Common.WriteHtml("/weixin/weixin.txt", err.ToString());
                                }
                            }
                        }
                    }
                    context.Response.Write("true");
                }
            }
        }


        public bool IsReusable
        {
            get
            {
                return false;
            }
        }

    }
}