<%@ WebHandler Language="C#" Class="getShortCode" %>

using System;
using System.Web;
using System.Collections.Generic;
using System.Runtime.Serialization.Json;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System.Web.Services.Protocols;
using System.Security.Cryptography;
using System.Text;
using System.Web.SessionState;
using System.Data;

public class getShortCode : IHttpHandler {

    public void ProcessRequest (HttpContext context) {
        result objRet = new result();
        DataContractJsonSerializer json = new DataContractJsonSerializer(objRet.GetType());
        context.Response.ContentType = "application/json;charset=utf-8";
        context.Response.AddHeader("Access-Control-Allow-Origin", "*");
        authPermission objAuth = new authPermission();

        string project_uid =  (context.Request["project_uid"] == null) ? "" : context.Request["project_uid"].ToString();

        if (!objAuth.isLogin())
        {
            objRet.ret = "no";
            objRet.err_code = "0001";
            objRet.message = "尚未登入，請登入後使用";
            json.WriteObject(context.Response.OutputStream, objRet);
            return;
        }

        string shor_Code = globalClass.CreateCaseRandomCode(6);
        Boolean isCheck = false;

        while (isCheck == false) {
            string checkString = string.Format("select * from url where url_code Collate SQL_Latin1_General_CP1_CS_AS = '{0}'", shor_Code);
            autoBindDataTable checkSQL = new autoBindDataTable(checkString);

            if (checkSQL.dataRows.Count == 0)
            {
                isCheck = true;
            }
            else {
                shor_Code = globalClass.CreateCaseRandomCode(6);
            }
        }

        objRet.ret = "yes";
        objRet.shorCode = shor_Code;

        json.WriteObject(context.Response.OutputStream, objRet);
        return;
    }

    public class result {
        public string ret = "no";
        public string err_code = "0000";
        public string message = "";
        public string shorCode = "";
        public string urlHeader = HttpContext.Current.Request.Url.Scheme + "://" + HttpContext.Current.Request.Url.Authority + "/";
    }

    public bool IsReusable {
        get {
            return false;
        }
    }

}