Discuz.Web/UI/AjaxPage.cs

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using System;
using System.Data;
using System.Data.Common;
using System.Text;
using System.Collections;
using System.Web;
using System.Text.RegularExpressions;
using System.Xml;
using System.IO;

using Discuz.Common;
using Discuz.Forum;
using Discuz.Entity;
using Discuz.Cache;
using Discuz.Config;
using Discuz.Plugin.Space;
using Discuz.Plugin.Album;
using Discuz.Plugin.Mall;
using Discuz.Common.Generic;
using Newtonsoft.Json;
using System.Web.UI;

namespace Discuz.Web.UI
{
    /// <summary>
    /// Ajax相关功能操作类
    /// </summary>
    public class AjaxPage : Page
    {
        GeneralConfigInfo config;
        public AjaxPage()
        {
            config = GeneralConfigs.GetConfig();
            //如果是Flash提交
            if (Utils.StrIsNullOrEmpty(DNTRequest.GetUrlReferrer()))
            {
                string[] input = DecodeUid(DNTRequest.GetString("input")).Split(','); //下标0为Uid，1为Olid
                UserInfo userInfo = Users.GetUserInfo(TypeConverter.StrToInt((input[0])));
                if (userInfo == null || DNTRequest.GetString("appid") != Utils.MD5(userInfo.Username + userInfo.Password + userInfo.Uid + input[1]))
                    return;
            }
            else if (ForumUtils.IsCrossSitePost(DNTRequest.GetUrlReferrer(), DNTRequest.GetHost())) //如果是跨站提交...
                return;


            string type = DNTRequest.GetString("t");
            if (Utils.InArray(type, "deleteattach,getattachlist,deletepostsbyuidanddays,deletepost,ignorepost,passpost,deletetopic,ignoretopic,passtopic,getimagelist,getblocklist,getpagelist,forumtree,topictree,quickreply,report,getdebatepostpage,confirmbuyattach,getnewpms,getnewnotifications,getajaxforums,checkuserextcredit,diggdebates,imagelist"))
            {
                //如果需要验证用户身份，跳转至继承了PageBase的页面
                try
                {
                    HttpContext.Current.Server.Transfer("sessionajax.aspx?t=" + type + "&reason=" + DNTRequest.GetString("reason"));
                }
                catch //子页面请求错误，期待更好方案
                { }
                return;
            }
            switch (type)
            {
                case "checkusername":