private void UpdateDownloadStatus(DownloadTask task, ListViewItem item, int current, int total, int completed, string status)
{
item.SubItems[0].Text = task.Url;
item.SubItems[1].Text = total == -1 ? "Unknown" : string.Format("{0:0.00} KB", (float)total / 1024f);
item.SubItems[2].Text = string.Format("{0:0.00} KB", (float)current / 1024f);
item.SubItems[3].Text = string.Format("{0:00}%", completed);
item.SubItems[4].Text = status;
}
private void InitializeDownloadTasks()
{
for (int i = 0; i < _patches.Length; i++)
{
ServerPatch patch = _patches[i];
string url = patch.PatchUrl;
int version = patch.Version;
string filename = Path.GetFileName(url);
string destination = Path.Combine(_serverDirectory, filename);
DownloadTask task = new DownloadTask(_patches[i].PatchUrl, destination);
ListViewItem item = new ListViewItem(new string[5]);
task.ProgressUpdate += new EventHandler<ProgressUpdateEventArgs>(OnDownloadStateProgressUpdate);
task.ProgressCompleted += new EventHandler<ProgressCompletedEventArgs>(OnDownloadStateProgressCompleted);
_downloadManager.Queue(task);
_downloadTable.Add(task, item);
lvDownloads.Items.Add(item);
UpdateDownloadStatus(task, item, 0, -1, 0, "Download Queued");
}
}
private void InitializeExtractionTask(DownloadTask state)
{
string filename = Path.GetFileName(state.Url);
string archive = state.Destination;
ListViewItem item = _downloadTable[state];
ExtractionTask task = new ExtractionTask(state.Destination, Path.GetDirectoryName(state.Destination));
task.ProgressUpdate += new EventHandler<ProgressUpdateEventArgs>(OnExtractionProgressUpdate);
task.ProgressCompleted += new EventHandler<ProgressCompletedEventArgs>(OnExtractionProgressCompleted);
Invoke((MethodInvoker)delegate()
{
UpdateExtractionStatus(task, item, 0, 100, 0, "Extraction Queued");
});
_extractionTable.Add(task, item);
_extractionManager.Queue(task);
if (!_extractionManager.HasBegun)
{
_extractionManager.Begin();
}
}
protected override void BeginTask(object state)
{
DownloadTask task = (DownloadTask)state;
Exception exception = null;
HttpWebRequest request = null;
HttpWebResponse response = null;
string directory = Path.GetDirectoryName(task.Destination);
FileSystemHelper.EnsureDirectoryExists(directory);
Stream input = null;
Stream writer = new FileStream(task.Destination, FileMode.OpenOrCreate);
long totalBytesToRecieve = 0;
long bytesRecieved = 0;
try
{
if (File.Exists(task.Url))
{
input = new FileStream(task.Url, FileMode.Open);
totalBytesToRecieve = input.Length;
}
else
{
request = (HttpWebRequest)WebRequest.Create(task.Url);
request.Timeout = 60000;
response = (HttpWebResponse)request.GetResponse();
if (response.StatusCode != HttpStatusCode.OK)
{
throw new WebException(String.Format("Error retrieving download. WebRequest status code = {0}", response.StatusCode));
}
input = response.GetResponseStream();
totalBytesToRecieve = response.ContentLength;
}
byte[] buffer = new byte[0x2000];
bytesRecieved = 0;
BinaryReader reader = new BinaryReader(input);
int progress = 0;
if (!CancelRequested)
{
task.OnProgressStarted(this, new ProgressStartedEventArgs(task));
}
while (bytesRecieved < totalBytesToRecieve)
{
if (CancelRequested)
{
break;
}
int count = (int)Math.Min((long)buffer.Length, totalBytesToRecieve - bytesRecieved);
buffer = reader.ReadBytes(count);
writer.Write(buffer, 0, count);
bytesRecieved += count;
int currentProgress = (int)((100 * bytesRecieved) / totalBytesToRecieve);
if (currentProgress != progress)
{
progress = currentProgress;
if (!CancelRequested)
{
task.OnProgressUpdate(this, new ProgressUpdateEventArgs(task, (int)bytesRecieved, (int)totalBytesToRecieve));
}
}
}
}
catch (Exception e)
{
exception = e;
}
finally
{
if (input != null)
{
input.Close();
}
if (writer != null)
{
writer.Close();
}
if (!CancelRequested)
{
task.OnProgressCompleted(this, new ProgressCompletedEventArgs(exception, CancelRequested, task, (int)bytesRecieved, (int)totalBytesToRecieve));
}
}
base.BeginTask(state);
}
