public static int IsConnected()
{
int fail;
System.Uri Url = new System.Uri("http://www.microsoft.com"); //é sempre bom por um site que costuma estar sempre on, para n haver problemas
System.Net.WebRequest WebReq;
System.Net.WebResponse Resp;
WebReq = System.Net.WebRequest.Create(Url);
try
{
Resp = WebReq.GetResponse();
Resp.Close();
WebReq = null;
fail = 0; //consegue conexão à internet
return(fail);
}
catch
{
MessageBox.Show("Não existe nenhuma ligação à internet.\n\nLiga-te à internet e tenta de novo.", "Erro de ligação!", MessageBoxButtons.OK, MessageBoxIcon.Error);
WebReq = null;
fail = 1; //falhou a conexão à internet
return(fail);
}
}
public static bool IsConnected()
{
bool fail;
System.Uri Url = new System.Uri("http://www.microsoft.com"); //é sempre bom por um site que costuma estar sempre on, para n haver problemas
System.Net.WebRequest WebReq;
System.Net.WebResponse Resp;
WebReq = System.Net.WebRequest.Create(Url);
try
{
Resp = WebReq.GetResponse();
Resp.Close();
WebReq = null;
fail = true; //consegue conexão à internet
return(fail);
}
catch
{
MessageBox.Show("Você não está conectado a internet!", "Atenção", MessageBoxButtons.OK);
WebReq = null;
fail = false; //falhou a conexão à internet
return(fail);
}
}
private void Timer1_Tick(object sender, EventArgs e)
{
if (progressBar1.Value < 100)
{
progressBar1.Value = progressBar1.Value + 2;
}
if (progressBar1.Value == 100)
{
Principal frmPrincipal = new Principal();
frmPrincipal.Show(); // abre o form principal
timer1.Stop(); // para o relógio
this.Hide(); //fecha a janela após completar os 100%
}
if (progressBar1.Value == 10)
{
System.Uri Url = new System.Uri("http://www.google.com"); //é sempre bom por um site que costuma estar sempre on para testar a conexão
System.Net.WebRequest WebReq;
System.Net.WebResponse Resp;
WebReq = System.Net.WebRequest.Create(Url);
try
{
Resp = WebReq.GetResponse();
Resp.Close();
WebReq = null;
}
catch
{
timer1.Stop(); // para o relógio em caso de erro
MessageBox.Show("Não existe conexão com a internet.");
this.Dispose(); // encerra o sistema
}
}
}
public static bool checkConectionOk()
{
bool conection_ok = false;
System.Uri Url = new System.Uri("http://www.microsoft.com"); //é sempre bom por um site que costuma estar sempre on, para n haver problemas
System.Net.WebRequest WebReq;
System.Net.WebResponse Resp;
WebReq = System.Net.WebRequest.Create(Url);
try
{
Resp = WebReq.GetResponse();
Resp.Close();
WebReq = null;
conection_ok = true;
}
catch
{
WebReq = null;
conection_ok = false;
}
Console.WriteLine(conection_ok);
return(conection_ok);
}
private bool VerIP(string ip, int port)
{
try
{
HttpWebRequest Req;
HttpWebResponse Resp;
WebProxy proxyObject = new WebProxy(ip, port); // port为端口号 整数型
Req = WebRequest.Create("https://www.baidu.com") as HttpWebRequest;
Req.Proxy = proxyObject; //设置代理
Req.Timeout = 1000; //超时
Resp = (HttpWebResponse)Req.GetResponse();
Encoding bin = Encoding.GetEncoding("UTF-8");
using (StreamReader sr = new StreamReader(Resp.GetResponseStream(), bin))
{
string str = sr.ReadToEnd();
if (str.Contains("百度"))
{
Resp.Close();
return(true);
}
else
{
return(false);
}
}
}
catch (Exception ex)
{
return(false);
}
}
public static bool IsConnectedToInternet(Uri urlToCheck)
{
try
{
if (urlToCheck == null)
{
urlToCheck = new System.Uri("http://www.microsoft.com");
}
System.Net.WebRequest WebReq;
System.Net.WebResponse Resp;
WebReq = System.Net.WebRequest.Create(urlToCheck);
try
{
Resp = WebReq.GetResponse();
Resp.Close();
WebReq = null;
return(true);
}
catch
{
WebReq = null;
return(false);
}
}
catch (Exception)
{
return(false);
}
}
bool yanzhen(string ipStr, int port)
{
try
{
HttpWebRequest Req;
HttpWebResponse Resp;
WebProxy proxyObject = new WebProxy(ipStr, port); // port为端口号 整数型
Req = WebRequest.Create("http://www.baidu.com/s?wd=ip&ie=utf-8&tn=94523140_hao_pg") as HttpWebRequest;
Req.Proxy = proxyObject; //设置代理
Req.Timeout = 1000; //超时
Resp = (HttpWebResponse)Req.GetResponse();
Encoding bin = Encoding.GetEncoding("UTF-8");
using (StreamReader sr = new StreamReader(Resp.GetResponseStream(), bin))
{
string str = sr.ReadToEnd();
if (str.Contains(ipStr))
{
Resp.Close();
return(true);
}
else
{
return(false);
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
return(false);
}
}
public static bool IsConnected()
{
bool fail;
System.Uri Url = new System.Uri("http://www.google.com"); //é sempre bom por um site que costuma estar sempre on, para n haver problemas
System.Net.WebRequest WebReq;
System.Net.WebResponse Resp;
WebReq = System.Net.WebRequest.Create(Url);
try
{
Resp = WebReq.GetResponse();
Resp.Close();
WebReq = null;
fail = true; //consegue conexão à internet
return fail;
}
catch
{
WebReq = null;
fail = false; //falhou a conexão à internet
return fail;
}
}
/// <summary>
/// 验证list集合里面的代理IP
/// </summary>
/// <param name="msg"></param>
public static void ProxyVerification(object msg, string name)
{
if (null == msg)
{
return;
}
ProxyViewModel proxy = (ProxyViewModel)msg;
try
{
using (WebClient web = new WebClient())
{
try
{
HttpWebRequest Req;
HttpWebResponse Resp;
WebProxy proxyObject = new WebProxy(proxy.ProxyIP, proxy.ProxyPort);
Req = WebRequest.Create("https://www.baidu.com") as HttpWebRequest;
Req.Proxy = proxyObject; //设置代理
Req.Timeout = 3000; //超时
Resp = (HttpWebResponse)Req.GetResponse();
Encoding bin = Encoding.GetEncoding("UTF-8");
using (StreamReader sr = new StreamReader(Resp.GetResponseStream(), bin))
{
string str = sr.ReadToEnd();
if (str.Contains("百度"))
{
Resp.Close();
// 更新验证时间
proxy.CreateTime = DateTime.Now;
// 更新验证状态
proxy.State = 1;
// 验证通过，归队
QueueOperation(proxy, IQueueType.EnQueue);
Console.WriteLine("{0}> [{2}]自动验证成功{1}", DateTime.Now.ToString("s"), proxy.Id, name);
}
else
{
Console.WriteLine("{0}> [{2}]自动验证失败{1}", DateTime.Now.ToString("s"), proxy.Id, name);
}
}
}
catch (Exception ex)
{ }
}
}
catch (Exception e)
{
Console.WriteLine("{0}> [{3}]自动验证异常{1} {2}", DateTime.Now.ToString("s"), proxy.Id, e.Message, name);
}
}
/// <summary>
/// 通过代理ip访问地址
/// </summary>
/// <param name="url">要访问的地址</param>
/// <param name="html">返回的html</param>
static void getHtmlstr(string url, ref string html)
{
Console.WriteLine("当前代理ip数量" + _ProxyQueue.Where(model => model.State == 1).Count());
var proxy = _ProxyQueue.FirstOrDefault(model => model.State == 1);//从代理iplist中取一个
if (proxy == null)
{
XiciGaoni();
getHtmlstr(url, ref html);
}
else
{
try
{
Console.WriteLine("开始使用" + proxy.ProxyIP + ":" + proxy.ProxyPort + "访问 : " + url);
HttpWebRequest Req;
HttpWebResponse Resp;
WebProxy proxyObject = new WebProxy(proxy.ProxyIP, proxy.ProxyPort); // port为端口号 整数型
Req = WebRequest.Create(url) as HttpWebRequest;
Req.Proxy = proxyObject; //设置代理
Req.Timeout = 2000; //超时
Req.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36";
Resp = (HttpWebResponse)Req.GetResponse();
Encoding bin = Encoding.GetEncoding("UTF-8");
using (StreamReader sr = new StreamReader(Resp.GetResponseStream(), bin))
{
string str = sr.ReadToEnd();
if (str.Contains("异常"))
{
Resp.Close();
// 更新验证状态
proxy.State = 0;
getHtmlstr(url, ref html);
}
else
{
Console.WriteLine("访问成功！");
html = str;
}
}
}
catch (Exception e)
{
Console.WriteLine("使用" + proxy.ProxyIP + ":" + proxy.ProxyPort + " 发生 " + e.Message);
proxy.State = 0;
getHtmlstr(url, ref html);
}
}
}
public static bool CheckConnection()
{
try
{
Uri Url = new Uri("http://install.team-mediaportal.com/");
WebRequest WebReq = WebRequest.Create(Url);
WebReq.Proxy.Credentials = CredentialCache.DefaultCredentials;
WebResponse Resp;
Resp = WebReq.GetResponse();
Resp.Close();
return(true);
}
catch
{
return(false);
}
}
public bool IsConnected()
{
System.Uri Url = new System.Uri("http://www.google.com");
System.Net.WebRequest WebReq;
System.Net.WebResponse Resp;
WebReq = System.Net.WebRequest.Create(Url);
try
{
Resp = WebReq.GetResponse();
Resp.Close();
WebReq = null;
return(true);
}
catch
{
WebReq = null;
return(false);
}
}
/// <summary>
/// Verifica se existe conexão com a internet através do site www.google.com.br
/// </summary>
/// <returns>True - existe conexão | False - não há conexão</returns>
public static bool IsConnected()
{
Uri Url = new Uri("http://www.google.com.br"); //é sempre bom por um site que costuma estar sempre on, para não haver problemas
System.Net.WebRequest WebReq;
System.Net.WebResponse Resp;
WebReq = System.Net.WebRequest.Create(Url);
try
{
Resp = WebReq.GetResponse();
Resp.Close();
return(WebReq.Equals(null));
}
catch
{
return(false);
}
}
/// <summary>
/// 验证将要从接口出去的代理IP
/// </summary>
/// <param name="msg"></param>
/// <returns></returns>
public static bool DbVerIp(ProxyViewModel proxy)
{
bool success = false;
Stopwatch sw = new Stopwatch();
sw.Start();
try
{
HttpWebRequest Req;
HttpWebResponse Resp;
WebProxy proxyObject = new WebProxy(proxy.ProxyIP, proxy.ProxyPort); // port为端口号 整数型
Req = WebRequest.Create("https://www.baidu.com") as HttpWebRequest;
Req.Proxy = proxyObject; //设置代理
Req.Timeout = 3000; //超时
Resp = (HttpWebResponse)Req.GetResponse();
Encoding bin = Encoding.GetEncoding("UTF-8");
using (StreamReader sr = new StreamReader(Resp.GetResponseStream(), bin))
{
string str = sr.ReadToEnd();
if (str.Contains("百度"))
{
Resp.Close();
// 更新验证时间
proxy.CreateTime = DateTime.Now;
// 更新验证状态
proxy.State = 1;
// 记录验证状态
success = true;
// 验证通过，归队
QueueOperation(proxy, IQueueType.EnQueue);
}
}
}
catch (Exception e)
{
Console.WriteLine("{0}> 接口验证异常{1}", DateTime.Now.ToString("s"), e.Message);
}
sw.Stop();
Console.WriteLine("{0}> 接口验证{1} {2} 耗时{3}s", DateTime.Now.ToString("s"), proxy.Id, success, sw.ElapsedMilliseconds / 1000.00);
return(success);
}
/// <summary>
/// Herhangi bir Url'lin canlı olup olmadığını verilen timeout ile kontrol eder.
/// </summary>
/// <param name="url"></param>
/// <param name="_TimeOut"></param>
/// <returns></returns>
public static bool Varmi_Baglanti(string url, int _TimeOut = 1000)
{
try
{
System.Uri Url = new System.Uri(url);
System.Net.WebRequest WebReq;
System.Net.WebResponse Resp;
WebReq = System.Net.WebRequest.Create(Url);
WebReq.Timeout = _TimeOut;
Resp = WebReq.GetResponse();
Resp.Close();
WebReq = null;
return(true);
}
catch
{
return(false);
}
}
