using System;

using System.Web;

using System.Text.RegularExpressions;





public partial class UploadVisualChatController : System.Web.UI.Page

{

    public override void ProcessRequest(HttpContext context)

    {



        var server = context.Request.Form["server"];

        var characterId = context.Request.Form["characterid"];

        var characterName = context.Request.Form["charname"];

        var file = context.Request.Files["filename"];



        if (!Regex.IsMatch(characterName, @"^[0-9A-Za-z_]+$"))

        {

            Response.Write("UploadVisualChatController: Invalid character name ({0}).");

            return;

        }



        if (file == null)

        {

            Response.Write("UploadVisualChatController: File missing (Names: {0})");

            return;

        }



        if (file.FileName != "visualchat.png" || file.ContentType != "image/png")

        {

            Response.Write("UploadVisualChatController: Invalid file ({0}, {1}).");

            return;

        }



        var fileName = string.Format("chat_{0:yyyyMMdd_HHmmss}_{1}.png", DateTime.Now, characterName);

        var target_dir = context.Server.MapPath("visual-chat/");

        

        if (!System.IO.Directory.Exists(target_dir))

        {

            System.IO.Directory.CreateDirectory(target_dir);

        }

       

        file.SaveAs(target_dir + "\\" + fileName);

        System.Web.HttpContext.Current.Response.Redirect(string.Format("http://{0}:{1}/VisualChatUpload/visual-chat/{2}", Request.Url.Host, Request.Url.Port, fileName));

        

      

    }

}