public void LoadAsync(string url, int timeout = 60, int retries = 4, int sleep = 0)
{
var p = new DownloaderParams(url, timeout, retries, sleep);
var ts = new ParameterizedThreadStart(Load);
var t = new Thread(ts);
t.IsBackground = true;
t.Start(p);
}
public void LoadAsync(string url, int timeout = 60, int retries = 4, int sleep = 5)
{
Params = new DownloaderParams(url, timeout, retries, sleep);
retryTimer.Interval = sleep * 1000;
retryTimer.Start();
}
public void Load(object args)
{
var p = args as DownloaderParams;
Params = p;
for (int retry = 0; retry < p.Retries; retry++)
{
try
{
var request = WebRequest.Create(p.Url) as HttpWebRequest;
request.AllowAutoRedirect = true;
// Accept all certificates.
ServicePointManager.ServerCertificateValidationCallback = (a, b, c, d) => true;
if (p.Credential != null)
{
request.Credentials = p.Credential;
}
request.Headers = p.Headers;
request.Timeout = p.Timeout * 1000;
p.Response = request.GetResponse() as HttpWebResponse;
switch (p.Response.StatusCode)
{
case HttpStatusCode.Found:
// Redirect to an error page.
Console.WriteLine("Found (302), ignoring ");
break;
case HttpStatusCode.OK:
using (var sr = p.Response.GetResponseStream())
using (var ms = new MemoryStream())
{
//long i = 0;
for (int b; (b = sr.ReadByte()) != -1;)
{
ms.WriteByte((byte)b);
if (p.Cancel)
{
return;
}
var e = new DownloaderEventArgs
{
BytesReceived = ms.Length,
TotalBytesToReceive = p.Response.ContentLength,
};
var ev = Progress;
if (ev != null)
{
ev(this, e);
}
}
var e2 = new DownloaderEventArgs
{
BytesReceived = ms.Length,
TotalBytesToReceive = ms.Length,
};
p.ResponseData = ms.ToArray();
var ev2 = Progress;
if (ev2 != null)
{
ev2(this, e2);
}
}
break;
default:
// This is unexpected.
Console.WriteLine(p.Response.StatusCode);
break;
}
p.Success = true;
break;
}
catch (WebException ex)
{
Console.WriteLine(":Exception " + ex.Message);
p.Response = ex.Response as HttpWebResponse;
if (ex.Status == WebExceptionStatus.Timeout && p.Sleep > 0)
{
Thread.Sleep(p.Sleep * 1000);
continue;
}
break;
}
}
}
