using System;
using System.Collections.Generic;

using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace MicroPhotoShare
{
    public partial class UploadPhoto : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                if (Request.QueryString["yuname"] != null)
                {
                    string yuname = LYFZ.WinAPI.SDKSecurity.Decode(Request["yuname"].ToString().Trim().Replace(" ", "+"));
                    string saveName = Request.QueryString["filename"].ToString();
                    UploadPhotoFile(yuname, saveName);

                }
                else
                {
                    Response.Write("Error");
                }

            }
        }

        private void UploadPhotoFile(string yuname, string saveName)
        {
            string DirectoryPath = GetUploadPath(yuname);
            if (!System.IO.Directory.Exists(DirectoryPath))
            {
                //System.Security.AccessControl.DirectorySecurity dsec= new System.Security.AccessControl.DirectorySecurity();
                System.IO.Directory.CreateDirectory(DirectoryPath);
            }
            foreach (string f in Request.Files.AllKeys)
            {
                HttpPostedFile file = Request.Files[f];

                if (UploadFile(file, DirectoryPath + "\\" + saveName))
                {
                    Response.Write("Success");
                }
                else {
                    Response.Write("Error：" + file.FileName);
                }

                
            }
        }
        public bool ExistsImgage(string fileName)
        {
            if (fileName.ToLower().EndsWith(".jpg")
                || fileName.ToLower().EndsWith(".jpge")
                || fileName.ToLower().EndsWith(".png") 
                || fileName.ToLower().EndsWith(".gif"))
            {
                return true;
            }
            else
            {
                return false;
            }
        }
        public bool UploadFile(HttpPostedFile file, string savePath)
        {
            try
            {
                if (ExistsImgage(file.FileName))
                {
                    file.SaveAs(savePath);

                    return true;
                }
                else
                {
                    return false;
                }

            }
            catch
            {
                return false;
            }
        }
        /// <summary>
        /// 获取上传路径
        /// </summary>
        /// <param name="childFolderPath">子目录路径</param>
        /// <returns></returns>
        public string GetUploadPath(string childFolderPath)
        {
            return Server.MapPath("~/UploadFolder/" + childFolderPath);
        }
    }
}