using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;

namespace ImageClient.Common
{
   public  class HttpHelper
    {
        public bool UploadImage(string fullName) {

            return true;
        }
        #region 获取指定WEB页面
        /// GET方法获取页面
        /// 函数名:GetWebUrl	
        /// 功能描述:WebClient 获取页面	
        /// 处理流程:
        /// 算法描述:
        /// 作 者: lxc
        /// 日 期: 2012-10-09
        /// 修 改:  
        /// 日 期:
        /// 版 本:
        public static string GetWebUrl(string strurl)
        {
            WebClient webClient = new WebClient();
            try
            {
                webClient.Credentials = CredentialCache.DefaultCredentials;
                Byte[] pageData = webClient.DownloadData(strurl);
                //string pageHtml = Encoding.UTF8.GetString(pageData);
                string pageHtml = Encoding.Default.GetString(pageData);
                return pageHtml;

            }
            catch (WebException webEx)
            {
                return "error_GetWebUrl:" + webEx.ToString();
            }
            finally
            {
                webClient = null;
            }


        }
        #endregion
        #region PostUrl(String url, String paramList)
        /// <summary>
        /// POST方法获取页面
        /// </summary>
        /// <param name="url"></param>
        /// <param name="paramList">格式: a=xxx&b=xxx&c=xxx</param>
        /// <returns></returns>
        public static string PostUrl(String url, String paramList)
        {
            HttpWebResponse res = null;
            string strResult = "";
            try
            {

                HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
                req.Timeout = 3000;
                req.Method = "POST";
                req.KeepAlive = true;
                //req.ContentType = "application/josn";
                req.ContentType = "application/x-www-form-urlencoded";
                //req.UserAgent="Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1; .NET CLR 1.1.4322)";
                CookieContainer cookieCon = new CookieContainer();
                req.CookieContainer = cookieCon;
                StringBuilder UrlEncoded = new StringBuilder();
                Char[] reserved = { '?', '=', '&' };
                byte[] SomeBytes = null;
                if (paramList != null)
                {
                    int i = 0, j;
                    while (i < paramList.Length)
                    {
                        j = paramList.IndexOfAny(reserved, i);
                        if (j == -1)
                        {
                            //							UrlEncoded.Append(HttpUtility.UrlEncode(paramList.Substring(i, paramList.Length-i)));
                            UrlEncoded.Append((paramList.Substring(i, paramList.Length - i)));
                            break;
                        }
                        //						UrlEncoded.Append(HttpUtility.UrlEncode(paramList.Substring(i, j-i)));
                        UrlEncoded.Append((paramList.Substring(i, j - i)));
                        UrlEncoded.Append(paramList.Substring(j, 1));
                        i = j + 1;
                    }
                    SomeBytes = Encoding.UTF8.GetBytes(UrlEncoded.ToString());
                    req.ContentLength = SomeBytes.Length;
                    Stream newStream = req.GetRequestStream();
                    newStream.Write(SomeBytes, 0, SomeBytes.Length);
                    newStream.Close();
                }
                else
                {
                    req.ContentLength = 0;
                }
                res = (HttpWebResponse)req.GetResponse();
                Stream ReceiveStream = res.GetResponseStream();
                //				Encoding encode = System.Text.Encoding.Default;//GetEncoding("utf-8");
                string encodeheader = res.ContentType;
                string encodestr = System.Text.Encoding.UTF8.HeaderName;
                if ((encodeheader.IndexOf("charset=") >= 0) && (encodeheader.IndexOf("charset=GBK") == -1) && (encodeheader.IndexOf("charset=gbk") == -1))
                {
                    int i = encodeheader.IndexOf("charset=");
                    encodestr = encodeheader.Substring(i + 8);
                }
                Encoding encode = System.Text.Encoding.GetEncoding(encodestr);//GetEncoding("utf-8");

                StreamReader sr = new StreamReader(ReceiveStream, encode);
                Char[] read = new Char[256];
                int count = sr.Read(read, 0, 256);
                while (count > 0)
                {
                    String str = new String(read, 0, count);
                    strResult += str;
                    count = sr.Read(read, 0, 256);
                }
            }
            catch (Exception e)
            {
                strResult = e.ToString();
            }
            finally
            {
                if (res != null)
                {
                    res.Close();
                }
            }
            return strResult;
        }

        #endregion


       
 
 
        /// <summary>
        /// WebClient上传文件至服务器
        /// </summary>
        /// <param name="localFilePath">文件名，全路径格式</param>
        /// <param name="url">服务器文件夹路径</param>
        /// <returns></returns>
        public   bool UpLoadFile(string localFilePath, string url)
        {
           

                    string uriString;
            // 得到文件名，文件扩展名字，服务器路径
            uriString = url + localFilePath.Substring(localFilePath.LastIndexOf("\\") + 1);

            // 创建WebClient实例
            WebClient myWebClient = new WebClient();
            myWebClient.Credentials = CredentialCache.DefaultCredentials;
            myWebClient.Headers.Add("Content-Type", "multipart/form-data;charset=utf-8;boundary=.png");
          
            // 要上传的文件
            FileStream fs = new FileStream(localFilePath, FileMode.Open, FileAccess.Read);
            BinaryReader r = new BinaryReader(fs);
            try
            {
                //使用UploadFile方法可以用下面的格式
                byte[] postArray = r.ReadBytes((int)fs.Length);
                Stream postStream = myWebClient.OpenWrite(url, "POST");
                if (postStream.CanWrite)
                {
                    postStream.Write(postArray, 0, postArray.Length);
                }
                else
                {
                   // MessageBox.Show("文件目前不可写！");
                }
                postStream.Close();
            }
            catch
            {
                //MessageBox.Show("文件上传失败，请稍候重试~");
                return false;
            }

            return true;
        }
        public bool UpLoadFileExe(string url, string fileanme) {
            string exename = "html.exe";
            // @"-url http://127.0.0.1:9900/upload/k001/zf1x  -filename C:/GOPATH/src/eassoft/imageserver/html/广东美的集团有限公司-公章1.bmp";
            string formatcmd = "-url \"{0}\"  -filename \"{1}\"";
            string cmd = string.Format(formatcmd,url,fileanme);


            Process myprocess = new Process();
            ProcessStartInfo startInfo = new ProcessStartInfo(exename, cmd);
            myprocess.StartInfo = startInfo;

            //通过以下参数可以控制exe的启动方式，具体参照 myprocess.StartInfo.下面的参数，如以无界面方式启动exe等
            myprocess.StartInfo.UseShellExecute = false;
            myprocess.StartInfo.CreateNoWindow = true;
            myprocess.Start();
            myprocess.WaitForExit(30000);
            myprocess.Close();
            return true;

        }
        
        }
}