static void GetResponse(IAsyncResult ar)
{
RequestState state = (RequestState)ar.AsyncState;
HttpWebResponse response = null;
byte[] responseData = null;
Exception error = null;
try
{
response = (HttpWebResponse)state.Request.EndGetResponse(ar);
// Get the stream for downloading the response
using (Stream responseStream = response.GetResponseStream())
{
#region Read the response
// If Content-Length is set we create a buffer of the exact size, otherwise
// a MemoryStream is used to receive the response
bool nolength = (response.ContentLength <= 0);
int size = (nolength) ? 8192 : (int)response.ContentLength;
MemoryStream ms = (nolength) ? new MemoryStream() : null;
byte[] buffer = new byte[size];
int bytesRead = 0;
int offset = 0;
int totalBytesRead = 0;
int totalSize = nolength ? 0 : size;
while ((bytesRead = responseStream.Read(buffer, offset, size)) != 0)
{
totalBytesRead += bytesRead;
if (nolength)
{
totalSize += (size - bytesRead);
ms.Write(buffer, 0, bytesRead);
}
else
{
offset += bytesRead;
size -= bytesRead;
}
// Fire the download progress callback for each chunk of received data
if (state.DownloadProgressCallback != null)
{
state.DownloadProgressCallback(state.Request, response, totalBytesRead, totalSize);
}
}
if (nolength)
{
responseData = ms.ToArray();
ms.Close();
ms.Dispose();
}
else
{
responseData = buffer;
}
#endregion Read the response
responseStream.Close();
}
}
catch (Exception ex)
{
// Logger.DebugLog("CapsBase.GetResponse(): " + ex.Message);
error = ex;
}
if (state.CompletedCallback != null)
{
state.CompletedCallback(state.Request, response, responseData, error);
}
}
