public void WaitOne(DDownloadProgress aProgress)
{
lock (iLock)
{
iProgressList.Add(aProgress);
aProgress(iProgress);
}
iEvent.WaitOne();
}
public bool Download(DDownloadProgress aProgress)
{
lock (iLock)
{
iProgressList.Add(aProgress);
aProgress(0);
}
try
{
HttpWebRequest headRequest = (HttpWebRequest)WebRequest.Create(iUri);
headRequest.Method = "HEAD";
int fileSize = 0;
using (HttpWebResponse headResponse = (HttpWebResponse)headRequest.GetResponse())
{
fileSize = Int32.Parse(headResponse.Headers[HttpResponseHeader.ContentLength]);
}
string tempFilename = Path.Combine(iCachePath, Path.GetFileNameWithoutExtension(iUri.AbsolutePath) + ".part");
string filename = Path.Combine(iCachePath, Path.GetFileName(iUri.AbsolutePath));
int startingPoint = 0;
if (File.Exists(tempFilename))
{
startingPoint = (int)(new FileInfo(tempFilename).Length);
}
iProgress = (uint)((startingPoint / (float)fileSize) * 100.0f);
lock (iLock)
{
foreach (DDownloadProgress d in iProgressList)
{
d(iProgress);
}
}
lock (iLock)
{
if (iDisposed)
{
return(false);
}
}
if (fileSize > startingPoint)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(iUri);
request.Credentials = CredentialCache.DefaultCredentials;
if (request.Proxy != null)
{
request.Proxy.Credentials = CredentialCache.DefaultCredentials;
}
request.AddRange(startingPoint);
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
using (Stream stream = response.GetResponseStream())
{
FileMode mode = FileMode.Append;
if (startingPoint == 0 || response.StatusCode != HttpStatusCode.PartialContent)
{
mode = FileMode.Create;
}
int total = startingPoint;
using (Stream file = new FileStream(tempFilename, mode, FileAccess.Write, FileShare.ReadWrite))
{
byte[] buffer = new byte[2048]; // read in 2K chuncks
int bytes;
do
{
bytes = stream.Read(buffer, 0, buffer.Length);
file.Write(buffer, 0, bytes);
total += bytes;
uint oldProgress = iProgress;
iProgress = (uint)((total / (float)fileSize) * 100.0f);
if (iProgress != oldProgress)
{
lock (iLock)
{
if (iDisposed)
{
return(false);
}
foreach (DDownloadProgress d in iProgressList)
{
d(iProgress);
}
}
}
}while(bytes > 0);
}
}
}
}
File.Move(tempFilename, filename);
return(true);
}
catch (Exception e)
{
UserLog.WriteLine("Failed to download " + iUri + ":" + e);
}
return(false);
}
