private void FetchFile(string serverName, string localPath, int size)
{
// will throw an exception if the file could not be downloaded
EnsureAllFolders(localPath);
byte[] complete = new byte[size - 1 + 1];
int start = 0; // on a failure we can restart at the current position
do
{
Globals.Root.Log.WriteLine("Start fetch: " + serverName + " -> " + localPath);
try
{
while (start < size)
{
int length = Math.Min(MAXSYNCHRONOUSCHUNK, size - start);
byte[] data = m_Server.FetchChunk(Server.Software, serverName, start, length);
Array.Copy(data, 0, complete, start, length);
start += length;
AsyncProgress(0, length);
Application.DoEvents();
}
System.IO.File.WriteAllBytes(localPath, complete);
AsyncProgress(1, 0);
return;
}
catch (System.Net.WebException exMissing)
{
if (exMissing.Status == System.Net.WebExceptionStatus.ProtocolError)
{
// indicates that a complete response was returned, but it did not have a success status code
if ((int)((System.Net.HttpWebResponse)exMissing.Response).StatusCode == 599)
{
// indicates that the file is not available on the update server
throw new Exception("UpdateFileMissing");
}
if (m_Retries >= 10)
{
throw;
}
WaitRetry(Strings.Item("Update_Download_Failed"), 30);
}
else
{
if (m_Retries >= 10)
{
throw;
}
WaitRetry(Strings.Item("Update_Download_Failed"), 30);
}
}
} while (true);
}
