public static HttpWebRequest TestUrl_Async(string url, int index, UrlTestUser caller)
{
if (!url.StartsWith("http://") && !url.StartsWith("https://"))
url = url.Insert(0, "http://");
RequestState requestState = new RequestState();
requestState.index = index;
requestState.caller = caller;
HttpWebRequest request = null;
try
{
request = (HttpWebRequest)WebRequest.Create(url);
System.Net.Cache.HttpRequestCachePolicy policy =
new System.Net.Cache.HttpRequestCachePolicy(System.Net.Cache.HttpRequestCacheLevel.BypassCache);
request.CachePolicy = policy;
request.UserAgent = user_agent;
request.AllowAutoRedirect = false;
requestState.request = request;
IAsyncResult result = (IAsyncResult)request.BeginGetResponse(new AsyncCallback(TestUrl_AsyncCallback), requestState);
}
catch (WebException we)
{
requestState.connectionFailure = true;
if (we.Status != WebExceptionStatus.RequestCanceled) // old requests that are invalid now shouldn't write into the ListView
ResolveUrlTestResult(requestState);
}
catch (Exception e)
{
requestState.connectionFailure = true;
ResolveUrlTestResult(requestState);
}
return request;
}
public RequestState()
{
index = -1;
request = null;
response = null;
connectionFailure = false;
caller = null;
}
public static HttpWebRequest TestUrl_Async(string url, int index, UrlTestUser caller)
{
if (!url.StartsWith("http://") && !url.StartsWith("https://"))
{
url = url.Insert(0, "http://");
}
RequestState requestState = new RequestState();
requestState.index = index;
requestState.caller = caller;
HttpWebRequest request = null;
try
{
request = (HttpWebRequest)WebRequest.Create(url);
System.Net.Cache.HttpRequestCachePolicy policy =
new System.Net.Cache.HttpRequestCachePolicy(System.Net.Cache.HttpRequestCacheLevel.BypassCache);
request.CachePolicy = policy;
request.UserAgent = user_agent;
request.AllowAutoRedirect = false;
requestState.request = request;
IAsyncResult result = (IAsyncResult)request.BeginGetResponse(new AsyncCallback(TestUrl_AsyncCallback), requestState);
}
catch (WebException we)
{
requestState.connectionFailure = true;
if (we.Status != WebExceptionStatus.RequestCanceled) // old requests that are invalid now shouldn't write into the ListView
{
ResolveUrlTestResult(requestState);
}
}
catch (Exception e)
{
requestState.connectionFailure = true;
ResolveUrlTestResult(requestState);
}
return(request);
}
public RequestState()
{
index = -1;
request = null;
response = null;
connectionFailure = false;
caller = null;
}
