using System.Net;
using System.Text;
using System.Text.RegularExpressions;

namespace EC.Util.Net;

/// <summary>
/// 网络操作单元
/// </summary>
public partial class NetUnit
{
    #region 获取主机名称

    /// <summary>
    /// 获取本地机器名称
    /// </summary>
    /// <returns>机器名称</returns>
    public static string GetHostName()
    {
        string hostName = "";
        try
        {
            hostName = Dns.GetHostName();
            return hostName;
        }
        catch
        {
            return null;
        }
    }

    #endregion 获取主机名称

    #region 获取本地主机IP

    /// <summary>
    /// 获取本地机器IP
    /// </summary>
    /// <returns>IP地址</returns>
    public static string GetHostIp()
    {
        string localIp = "";
        try
        {
            System.Net.IPAddress[] addressList = Dns.GetHostByName(Dns.GetHostName()).AddressList;
            for (int i = 0; i < addressList.Length; i++)
            {
                localIp += addressList[i].ToString();
            }
            return localIp;
        }
        catch
        {
            return null;
        }
    }

    #endregion 获取本地主机IP

    #region 穿过代理服务器获得Ip地址,如果有多个IP，则第一个是用户的真实IP，其余全是代理的IP，用逗号隔开

    //public static string getRealIp()
    //{
    //    string UserIP;
    //    if (HttpContext.Current.Request.ServerVariables["HTTP_VIA"]!=null)  //得到穿过代理服务器的ip地址
    //    {
    //        UserIP = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();
    //    }
    //    else
    //    {
    //        UserIP = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString();
    //    }
    //    return UserIP;
    //}

    #endregion 穿过代理服务器获得Ip地址,如果有多个IP，则第一个是用户的真实IP，其余全是代理的IP，用逗号隔开

    #region 获取主机MAC地址

    /// <summary>
    /// 获取本机MAC地址
    /// </summary>
    /// <returns>string null</returns>
    public static string GetHostMac()
    {
        //string mac = "";
        //try
        //{
        //    ManagementClass mc;
        //    mc=new ManagementClass("Win32_NetworkAdapterConfiguration");
        //    ManagementObjectCollection moc=mc.GetInstances();
        //    foreach(ManagementObject mo in moc)
        //    {
        //        if(mo["IPEnabled"].ToString()=="True")
        //            mac=mo["MacAddress"].ToString();
        //    }
        //    return mac;
        //}
        //catch
        //{
        //    return null;
        //}
        return null;
    }

    #endregion 获取主机MAC地址

    #region 获取本机IP

    public static string GetLocalIp()
    {
        //Page.Request.UserHostName
        return null;
    }

    #endregion 获取本机IP

    /// <summary>
    /// C# 验证IP
    /// </summary>
    /// <param name="ip"></param>
    /// <returns></returns>
    public static bool IsIP(string ip)
    {
        string pattern = @"(((\d{1,2})|(1\d{2})|(2[0-4]\d)|(25[0-5]))\.){3}((\d{1,2})|(1\d{2})|(2[0-4]\d)|(25[0-5]))";
        Regex objRe = new Regex(pattern);
        Match objMa = objRe.Match(ip);
        if (!objMa.Success)
        {
            return false;
        }
        else return true;
    }

    public static string PingResult(string ip)
    {
        System.Net.NetworkInformation.Ping p = new System.Net.NetworkInformation.Ping();
        System.Net.NetworkInformation.PingOptions options = new System.Net.NetworkInformation.PingOptions();
        options.DontFragment = true;
        string data = "Lxc";
        byte[] buffer = Encoding.ASCII.GetBytes(data);
        //Wait  seconds for a reply.
        int timeout = 100;

        System.Net.NetworkInformation.PingReply reply = p.Send(ip, timeout, buffer, options);
        return reply.Status.ToString();
    }

    #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 获取指定WEB页面

    #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.Method = "POST";
            req.KeepAlive = true;
            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.Default.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.Default.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 PostUrl(String url, String paramList)

    #region 下载指定WEB页面

    /// GET方法获取页面
    /// 函数名:GetFileUrl
    /// 功能描述:WebClient 下载文件
    /// 处理流程:
    /// 算法描述:
    /// 作 者: lxc
    /// 日 期: 2012-10-09
    /// 修 改:
    /// 日 期:
    /// 版 本:
    public static Boolean GetFileUrl(string strurl, string filename)
    {
        try
        {
            WebClient webClient = new WebClient();
            // webClient.Credentials = CredentialCache.DefaultCredentials;
            webClient.DownloadFile(strurl, filename);
            return true;
        }
        catch (WebException webex)
        {
            return false;// "error_GetWebUrl:" + webEx.ToString();
        }
    }

    #endregion 下载指定WEB页面

    #region 获取图片

    public static Stream GetImage(String url)
    {
        HttpWebResponse res = null;

        try
        {
            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);

            res = (HttpWebResponse)req.GetResponse();
            Stream ReceiveStream = res.GetResponseStream();
            return ReceiveStream;
        }
        catch
        {
            return null;
        }
        finally
        {
        }
    }

    /// GET方法获取页面
    /// 函数名:GetImage
    /// 功能描述:GET方法获取页面
    /// 处理流程:
    /// 算法描述:
    /// 作 者: 杨栋
    /// 日 期: 2006-11-21 09:00
    /// 修 改: 2007-01-29 17:00 2006-12-05 17:00
    /// 日 期:
    /// 版 本:
    ///

    #region GetImage(String url,string  cookieheader)

    /// <summary>
    ///
    /// </summary>
    /// <param name="url">目标url</param>
    /// <param name="cookieheader">输入Cookie</param>
    /// <returns></returns>
    public static byte[] GetImage(String url, string cookieheader)
    {
        //			outcookieheader="";

        HttpWebResponse res = null;

        try
        {
            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
            //				req.Method = "GET";
            //				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();
            //
            //				//				string name=cookieheader.Substring(0,cookieheader.IndexOf("="));
            //				//				string key=cookieheader.Substring(cookieheader.IndexOf("=")+1,cookieheader.Length-cookieheader.IndexOf("=")-1);
            //				//				cookieCon.Add(new Uri(url),new Cookie(name,key));
            //
            //
            //				req.CookieContainer = cookieCon;
            //				if ((cookieheader.Length>0 )&(cookieheader.IndexOf("=")>0))
            //				{
            //					req.CookieContainer.SetCookies(new Uri(url),cookieheader);
            //				}

            //为请求加入cookies
            CookieContainer cookieCon = new CookieContainer();
            //				req.CookieContainer = cookieCon;
            //取得cookies 集合
            string[] ls_cookies = cookieheader.Split(';');
            if (ls_cookies.Length <= 1) //如果有一个或没有cookies 就采用下面的方法。
            {
                req.CookieContainer = cookieCon;
                if ((cookieheader.Length > 0) & (cookieheader.IndexOf("=") > 0))
                {
                    req.CookieContainer.SetCookies(new Uri(url), cookieheader);
                }
            }
            else
            {
                //如果是多个cookie 就分别加入 cookies 容器。
                //////////////////////////////////
                string[] ls_cookie = null;

                for (int i = 0; i < ls_cookies.Length; i++)
                {
                    ls_cookie = ls_cookies[i].Split('=');
                    //						cookieCon.Add(new Uri(url),new Cookie(ls_cookie[0].ToString().Trim(),ls_cookie[1].ToString().Trim()));
                    cookieCon.Add(new Uri(url), new Cookie(ls_cookie[0].ToString().Trim(), ls_cookies[i].Substring(ls_cookies[i].IndexOf("=") + 1)));
                }
                req.CookieContainer = cookieCon;

                ////////////////////////////////////
            }

            res = (HttpWebResponse)req.GetResponse();
            Stream ReceiveStream = res.GetResponseStream();

            byte[] mybytes = new byte[4096];

            int count = ReceiveStream.Read(mybytes, 0, 4096);

            byte[] image = new byte[count];

            Array.Copy(mybytes, image, count);

            if (res != null)
            {
                res.Close();
            }
            return image;
        }
        finally
        {
        }
    }

    #endregion GetImage(String url,string  cookieheader)

    #region GetImage(String url,string  cookieheader,out string outcookieheader,string Header_Referer)

    /// <summary>
    ///
    /// </summary>
    /// <param name="url">目标url</param>
    /// <param name="cookieheader">输入Cookie</param>
    /// <returns></returns>
    public static byte[] GetImage(String url, string cookieheader, out string outcookieheader, string Header_Referer)
    {
        //			outcookieheader="";

        HttpWebResponse res = null;

        try
        {
            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
            if (Header_Referer.Length > 1)
            {
                req.Referer = Header_Referer;
            }
            //				req.Method = "GET";
            //				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();
            //
            //				//				string name=cookieheader.Substring(0,cookieheader.IndexOf("="));
            //				//				string key=cookieheader.Substring(cookieheader.IndexOf("=")+1,cookieheader.Length-cookieheader.IndexOf("=")-1);
            //				//				cookieCon.Add(new Uri(url),new Cookie(name,key));
            //
            //
            //				req.CookieContainer = cookieCon;
            //				if ((cookieheader.Length>0 )&(cookieheader.IndexOf("=")>0))
            //				{
            //					req.CookieContainer.SetCookies(new Uri(url),cookieheader);
            //				}

            //为请求加入cookies
            CookieContainer cookieCon = new CookieContainer();
            //				req.CookieContainer = cookieCon;
            //取得cookies 集合
            string[] ls_cookies = cookieheader.Split(';');
            if (ls_cookies.Length <= 1) //如果有一个或没有cookies 就采用下面的方法。
            {
                req.CookieContainer = cookieCon;
                if ((cookieheader.Length > 0) & (cookieheader.IndexOf("=") > 0))
                {
                    req.CookieContainer.SetCookies(new Uri(url), cookieheader);
                }
            }
            else
            {
                //如果是多个cookie 就分别加入 cookies 容器。
                //////////////////////////////////
                string[] ls_cookie = null;

                for (int i = 0; i < ls_cookies.Length; i++)
                {
                    ls_cookie = ls_cookies[i].Split('=');
                    //						cookieCon.Add(new Uri(url),new Cookie(ls_cookie[0].ToString().Trim(),ls_cookie[1].ToString().Trim()));
                    cookieCon.Add(new Uri(url), new Cookie(ls_cookie[0].ToString().Trim(), ls_cookies[i].Substring(ls_cookies[i].IndexOf("=") + 1)));
                }
                req.CookieContainer = cookieCon;

                ////////////////////////////////////
            }

            res = (HttpWebResponse)req.GetResponse();
            Stream ReceiveStream = res.GetResponseStream();

            outcookieheader = req.CookieContainer.GetCookieHeader(new Uri(url));//获得cookie

            if (outcookieheader.Length < 2)
            {
                try
                {
                    outcookieheader = res.Headers["Set-Cookie"];
                    outcookieheader = outcookieheader.Substring(0, outcookieheader.IndexOf(";"));
                }
                catch
                {
                    outcookieheader = "";
                }
            }

            byte[] mybytes = new byte[4096];

            int count = ReceiveStream.Read(mybytes, 0, 4096);

            byte[] image = new byte[count];

            Array.Copy(mybytes, image, count);

            if (res != null)
            {
                res.Close();
            }
            return image;
        }
        finally
        {
        }
    }

    #endregion GetImage(String url,string  cookieheader,out string outcookieheader,string Header_Referer)

    #region GetImage(String url,string  cookieheader,string Header_Referer)

    /// <summary>
    ///
    /// </summary>
    /// <param name="url">目标url</param>
    /// <param name="cookieheader">输入Cookie</param>
    /// <param name="Header_Referer">包头 Referer</param>
    /// <returns></returns>
    public static byte[] GetImage(String url, string cookieheader, string Header_Referer)
    {
        //			outcookieheader="";

        HttpWebResponse res = null;

        try
        {
            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
            if (Header_Referer.Length > 1)
            {
                req.Referer = Header_Referer;
            }
            //				req.Method = "GET";
            //				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();
            //
            //				//				string name=cookieheader.Substring(0,cookieheader.IndexOf("="));
            //				//				string key=cookieheader.Substring(cookieheader.IndexOf("=")+1,cookieheader.Length-cookieheader.IndexOf("=")-1);
            //				//				cookieCon.Add(new Uri(url),new Cookie(name,key));
            //
            //
            //				req.CookieContainer = cookieCon;
            //				if ((cookieheader.Length>0 )&(cookieheader.IndexOf("=")>0))
            //				{
            //					req.CookieContainer.SetCookies(new Uri(url),cookieheader);
            //				}

            //为请求加入cookies
            CookieContainer cookieCon = new CookieContainer();
            //				req.CookieContainer = cookieCon;
            //取得cookies 集合
            string[] ls_cookies = cookieheader.Split(';');
            if (ls_cookies.Length <= 1) //如果有一个或没有cookies 就采用下面的方法。
            {
                req.CookieContainer = cookieCon;
                if ((cookieheader.Length > 0) & (cookieheader.IndexOf("=") > 0))
                {
                    req.CookieContainer.SetCookies(new Uri(url), cookieheader);
                }
            }
            else
            {
                //如果是多个cookie 就分别加入 cookies 容器。
                //////////////////////////////////
                string[] ls_cookie = null;

                for (int i = 0; i < ls_cookies.Length; i++)
                {
                    ls_cookie = ls_cookies[i].Split('=');
                    //						cookieCon.Add(new Uri(url),new Cookie(ls_cookie[0].ToString().Trim(),ls_cookie[1].ToString().Trim()));
                    cookieCon.Add(new Uri(url), new Cookie(ls_cookie[0].ToString().Trim(), ls_cookies[i].Substring(ls_cookies[i].IndexOf("=") + 1)));
                }
                req.CookieContainer = cookieCon;

                ////////////////////////////////////
            }

            res = (HttpWebResponse)req.GetResponse();
            Stream ReceiveStream = res.GetResponseStream();

            byte[] mybytes = new byte[4096];

            int count = ReceiveStream.Read(mybytes, 0, 4096);

            byte[] image = new byte[count];

            Array.Copy(mybytes, image, count);

            if (res != null)
            {
                res.Close();
            }
            return image;
        }
        finally
        {
        }
    }

    #endregion GetImage(String url,string  cookieheader,string Header_Referer)

    #endregion 获取图片
}