using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;

namespace MyHouse.API
{
    public class WebDav
    {
        private string _UserName = "";
        private string _Password = "";
        private string _WebDavUrl = "";
        public WebDav(string _WebDavUrl,string _UserName,string _Password)
        {
            this._UserName = _UserName; 
            this._Password = _Password;
            this._WebDavUrl = _WebDavUrl;
        }
        public int DelFile(string _WebFileUrl)
        {
            try
            {
                HttpWebRequest req = (HttpWebRequest)WebRequest.Create(_WebDavUrl+"/"+_WebFileUrl);
                req.Credentials = new NetworkCredential(_UserName, _Password); //验证密码
                req.PreAuthenticate = true;
                req.Method = "DELETE";
                //req.AllowWriteStreamBuffering = true;

                req.GetResponse();
                return 1;
            }
            catch { return 0; }
        }
        public static Image LoadPic(string url)
        {
            Image image = null;
            try
            {
                WebRequest webreq = WebRequest.Create(url);
                WebResponse webres = webreq.GetResponse();
                Stream stream = webres.GetResponseStream();
                image = Image.FromStream(stream);
                stream.Close();
            }
            catch { }
            return image;
        }
        public int Upload(string _WebFileUrl, string _LocalFile)
        {
            try
            {
                System.Net.HttpWebRequest req = (System.Net.HttpWebRequest)WebRequest.Create(_WebDavUrl + "/" + _WebFileUrl);  //Http和服务器交互
                req.Credentials = new NetworkCredential(_UserName, _Password); //验证密码
                req.PreAuthenticate = true;
                req.Method = "PUT";//采用PUT方式
                req.AllowWriteStreamBuffering = true;

                Stream reqStream = req.GetRequestStream();
                FileStream rdm = new FileStream(_LocalFile, FileMode.Open); //打开本地文件流

                byte[] inData = new byte[4096];
                int byteRead = rdm.Read(inData, 0, inData.Length);  //二进制读文件
                while (byteRead > 0)
                {
                    reqStream.Write(inData, 0, byteRead); //响应流写入
                    byteRead = rdm.Read(inData, 0, inData.Length);
                }
                rdm.Close();
                reqStream.Close();

                req.GetResponse(); //提交
            }
            catch (Exception e)
            {
                return 0;
            }
            return 1; //正确返回
        }
        //----新建文件夾----

        public int CreateDir(string Path)
        {
            try
            {
                // Create the HttpWebRequest object. 
                System.Net.HttpWebRequest req = (System.Net.HttpWebRequest)WebRequest.Create(_WebDavUrl + "/" + Path);  //Http和服务器交互
                req.Credentials = new NetworkCredential(_UserName, _Password); //验证密码
                // Specify the method. 
                req.Method = "MKCOL";

                HttpWebResponse objResponse = (System.Net.HttpWebResponse)req.GetResponse();

                // Close the HttpWebResponse object. 
                objResponse.Close();
                return 1;
            }
            catch (Exception ex)
            {
                return 0;
            }
        }
    }
}