/// <summary>
/// Stop announcing to tracker..
/// </summary>
public void StopAnnouncing()
{
try
{
if (trackerStatus == TrackerStatus.Running)
{
if (announceTimer != null)
{
announceTimer.Stop();
announceTimer.Dispose();
announceTimer = null;
CallBack = null;
CallBackData = null;
}
trackerStatus = TrackerStatus.Stopped;
}
else
{
throw new Exception("Tracker is not running so cannot be stopped.");
}
}
catch (Exception ex)
{
Log.Logger.Error(ex);
trackerStatus = TrackerStatus.Stalled;
throw new BitTorrentException("" + ex.Message);
}
}
public ApplicationContext()
{
if (Properties.Settings.Default.CallUpgrade)
{
Properties.Settings.Default.Upgrade();
Properties.Settings.Default.CallUpgrade = false;
Properties.Settings.Default.Save();
}
_components = new System.ComponentModel.Container();
_notifyIcon = new NotifyIcon(_components)
{
ContextMenuStrip = new ContextMenuStrip(),
Visible = true
};
_notifyIcon.ContextMenuStrip.Items.Add(new ToolStripMenuItem("Settings", null, new EventHandler(MenuSettingsItem_Click)));
_notifyIcon.ContextMenuStrip.Items.Add(new ToolStripMenuItem("Exit", null, new EventHandler(MenuExitItem_Click)));
_buddies = new Buddies();
_housekeepingTimer = new System.Windows.Forms.Timer();
_housekeepingTimer.Interval = 5000;
_housekeepingTimer.Tick += HousekeepingTimer_Tick;
HousekeepingTimer_Tick(null, null); // tick anyway enables timer when finished
_trackerStatus = TrackerStatus.OK;
if (trackersConfigured())
{
_trackerStatus = TrackerStatus.UNKNOWN;
UpdateTrackerSetting();
}
_viewModel = new ViewModel(_buddies);
}
private void UpdateStatue(TrackerStatus status, string statusMsg)
{
Status = status;
StatusMsg = statusMsg;
if (StatusChanged != null)
{
StatusChanged(this, new EventArgs());
}
}
/// <summary>
/// Initialise BitTorrent Tracker.
/// </summary>
/// <param name="tc"></param>
public Tracker(TorrentContext tc)
{
trackerStatus = TrackerStatus.Stopped;
PeerID = BitTorrentLibrary.PeerID.Get();
Ip = Host.GetIP();
_tc = tc ?? throw new ArgumentNullException(nameof(tc));
_tc.MainTracker = this;
InfoHash = tc.infoHash;
TrackerURL = tc.trackerURL;
_announcer = new AnnouncerFactory().Create(TrackerURL);
}
/// <summary>
/// Starts the announce requests to tracker.
/// </summary>
public void StartAnnouncing()
{
try
{
// Swarm queue needs to be initialised
if (peerSwarmQueue == null)
{
throw new Exception("Peer swarm queue has not been set.");
}
if (trackerStatus != TrackerStatus.Running)
{
// If all of torrent downloaded reset total bytes downloaded
if (Left == 0)
{
_tc.TotalBytesDownloaded = 0;
_tc.TotalBytesToDownload = 0;
ChangeStatus(TrackerEvent.None);
}
else
{
ChangeStatus(TrackerEvent.started);
}
if (lastResponse.failure)
{
trackerStatus = TrackerStatus.Stalled;
throw new Exception("Tracker failure: " + lastResponse.statusMessage);
}
announceTimer = new System.Timers.Timer(Interval);
announceTimer.Elapsed += (sender, e) => OnAnnounceEvent(this);
announceTimer.AutoReset = false;
announceTimer.Enabled = true;
announceTimer?.Start();
trackerStatus = TrackerStatus.Running;
}
else
{
throw new BitTorrentException("Tracker cannot be started as is already running.");
}
}
catch (BitTorrentException)
{
throw;
}
catch (Exception ex)
{
trackerStatus = TrackerStatus.Stalled;
Log.Logger.Error(ex);
throw new BitTorrentException(ex.Message);
}
}
public void Stop()
{
if (Status == TrackerStatus.Started)
{
t.Stop();
while (Peers.Count > 0)
{
var peer = Peers.First();
peer.Disconnect();
}
Connection.StopListening();
NetworkComms.Shutdown();
NetworkComms.Logger.Warn("===== Tracker stopped =====");
Status = TrackerStatus.Stopped;
}
}
public Tracker()
{
this.Peers = new List <Peer>();
this.Status = TrackerStatus.Stopped;
t = new Timer(CommonHelpers.CheckAliveInterval);
NetworkComms.DisableLogging();
if (File.Exists("BlockChainVotingsTracker_log.txt"))
{
File.Delete("BlockChainVotingsTracker_log.txt");
}
LiteLogger logger = new LiteLogger(LiteLogger.LogMode.ConsoleAndLogFile, "BlockChainVotingsTracker_log.txt");
NetworkComms.EnableLogging(logger);
NetworkComms.AppendGlobalConnectionEstablishHandler(OnConnectPeer);
}
public void Start()
{
if (Status == TrackerStatus.Stopped)
{
try
{
TCPConnection.StartListening(CommonHelpers.GetLocalEndPoint(CommonHelpers.TrackerPort), false);
Status = TrackerStatus.Started;
}
catch
{
NetworkComms.Logger.Error("Can't start listener on this IP: " + CommonHelpers.GetLocalEndPoint(CommonHelpers.TrackerPort).ToString());
}
NetworkComms.Logger.Warn("===== Tracker started =====");
t.Start();
}
}
private void UpdateTrackerSetting()
{
// Remove old watchers
for (int i = 0; i < _watchers.Count; ++i)
{
_watchers[i].EnableRaisingEvents = false;
_watchers[i] = null;
}
_watchers.Clear();
List<string> trackerPaths = getTrackerPaths();
// Add new watchers
if (trackerPaths.Count > 0)
{
for (int i = 0; i < trackerPaths.Count; ++i)
{
string trackerPath = trackerPaths[i];
FileSystemWatcher watcher = new FileSystemWatcher();
_watchers.Add(watcher);
/* Watch for changes in LastAccess and LastWrite times, and
the renaming of files or directories. */
watcher.NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite | NotifyFilters.FileName | NotifyFilters.DirectoryName;
// Add event handlers.
watcher.Changed += new FileSystemEventHandler(OnChanged);
watcher.Created += new FileSystemEventHandler(OnChanged);
watcher.Deleted += new FileSystemEventHandler(OnChanged);
watcher.Renamed += new RenamedEventHandler(OnRenamed);
QueryTrackerFile();
try
{
watcher.Path = Path.GetDirectoryName(trackerPath);
watcher.Filter = Path.GetFileName(trackerPath);
watcher.EnableRaisingEvents = true;
}
catch (Exception ex)
{
Console.WriteLine("{0}", ex.ToString());
_trackerStatus = TrackerStatus.UNKNOWN;
}
}
}
else
{
_trackerStatus = TrackerStatus.OK;
}
}
private void QueryTrackerFile()
{
TrackerStatus newStatus = TrackerStatus.UNKNOWN;
try
{
List<string> trackerpaths = getTrackerPaths();
foreach (string trackerPath in trackerpaths)
{
using (var fs = new FileStream(trackerPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
using (var sr = new StreamReader(fs, Encoding.UTF8, true, 1024))
{
string lineOfText;
while ((lineOfText = sr.ReadLine()) != null)
{
newStatus = (lineOfText.IndexOf("Compile OK") != -1) ? TrackerStatus.OK : TrackerStatus.ERROR;
Console.WriteLine(lineOfText);
}
// "ERROR" wins
if (newStatus == TrackerStatus.ERROR)
break;
}
}
}
}
catch (Exception ex)
{
Console.WriteLine("{0}", ex.ToString());
newStatus = TrackerStatus.UNKNOWN;
}
if (_trackerStatus != newStatus)
{
_trackerStatus = newStatus;
_buddies.Heartbeat();
UpdateBuddiesColor();
}
}
public List<TrackerType> GetTrackerTypesByStatus (TrackerStatus status)
{
return TrackerTypes.Values.Where(t => t.Status() == status).ToList();
}
/// <summary>
/// Announces to this tracker group.
/// This should be done in regular intervals.
/// </summary>
/// <returns>The announce response.</returns>
public async Task <AnnounceResponse> Announce(TrackerEvent trackerEvent)
{
// If there are no trackers to announce to
if (trackers.Count == 0)
{
return(null);
}
// Don't bother announcing if we are not listening for peers
else if (!PeerListener.IsListening)
{
return(null);
}
else if (isAnnouncing)
{
return(null);
}
try
{
if (currentIndex > trackers.Count)
{
currentIndex = 0;
}
// Select the tracker
var tracker = trackers[currentIndex];
isAnnouncing = true;
// If we haven't sent started event yet, we make sure to send started event first
if (!hasSentStartedEvent)
{
// If we are sending stopped and haven't sent started, then we don't have to bother
if (trackerEvent == TrackerEvent.Stopped)
{
return(null);
}
trackerEvent = TrackerEvent.Started;
}
// If we stop the tracker, we have to send a started event again on next announce
if (trackerEvent == TrackerEvent.Stopped)
{
hasSentStartedEvent = false;
}
int listenPort = PeerListener.Port;
announceRequest.Port = listenPort;
announceRequest.TrackerEvent = trackerEvent;
announceRequest.BytesDownloaded = torrent.SessionDownloadedBytes;
announceRequest.BytesUploaded = torrent.SessionUploadedBytes;
announceRequest.BytesLeft = torrent.BytesLeftToDownload;
var announceResponse = await tracker.Announce(announceRequest);
status = tracker.Status;
failureMessage = tracker.FailureMessage;
warningMessage = tracker.WarningMessage;
if (status == TrackerStatus.OK)
{
var timeNow = DateTime.UtcNow;
nextAnnounceTime = timeNow.Add(tracker.Interval);
nextAnnounceTimeMinimum = timeNow.Add(tracker.MinInterval);
if (!hasSentStartedEvent && trackerEvent == TrackerEvent.Started)
{
hasSentStartedEvent = true;
}
int trackerIndex = trackers.IndexOf(tracker);
if (trackerIndex != -1)
{
// If we get an OK we put this tracker first in the list
if (trackerIndex > 0)
{
trackers.RemoveAt(trackerIndex);
trackers.Insert(0, tracker);
}
currentIndex = 0;
}
else
{
// The tracker has been removed from the group
currentIndex = 0;
}
}
else
{
currentIndex = (currentIndex + 1) % trackers.Count;
if (currentIndex == 0)
{
var timeNow = DateTime.UtcNow;
nextAnnounceTime = timeNow.Add(TimeSpan.FromMinutes(5.0));
nextAnnounceTimeMinimum = timeNow.Add(TimeSpan.FromMinutes(1.0));
}
}
return(announceResponse);
}
catch (Exception ex)
{
failureMessage = ex.Message;
currentIndex = (currentIndex + 1) % trackers.Count;
Log.LogErrorException(ex);
return(null);
}
finally
{
isAnnouncing = false;
}
}
private static void Track(HttpContext context)
{
string strDocId = context.Request["DocId"];
string strFileName = DBStore.GetDocName(strDocId);
string strBody = "";
string strStatus = "0";
try
{
using (var receiveStream = context.Request.InputStream)
{
using (var readStream = new StreamReader(receiveStream))
{
strBody = readStream.ReadToEnd();
}
}
DBStore.AddStatus(strDocId, "WebEditor.Track", strBody);
}
catch (Exception e)
{
throw new HttpException((int)HttpStatusCode.BadRequest, e.Message);
}
if (string.IsNullOrEmpty(strBody))
{
return;
}
JavaScriptSerializer jss = new JavaScriptSerializer();
Dictionary <string, object> dicResponse = jss.Deserialize <Dictionary <string, object> >(strBody);
string strDocKey = "";
int intStatusVal = 0;
TrackerStatus enumStatus = TrackerStatus.NotFound;
string strFileDownloadUrl = "";
string strUser = "";
if (dicResponse.ContainsKey("key"))
{
strDocKey = dicResponse["key"].ToString();
}
if (dicResponse.ContainsKey("status"))
{
intStatusVal = Convert.ToInt32(dicResponse["status"]);
enumStatus = (TrackerStatus)intStatusVal;
}
if (dicResponse.ContainsKey("url"))
{
strFileDownloadUrl = dicResponse["url"].ToString();
}
if (dicResponse.ContainsKey("users"))
{
strUser = (dicResponse["users"] as ArrayList)[0].ToString();
}
DBStore.UpdateDocStatus(strDocId, "", "WebEditor.Track: " + enumStatus + " : " + intStatusVal.ToString());
DBStore.AddStatus(strDocId, "strDocKey", strDocKey);
DBStore.AddStatus(strDocId, "strUser", strUser);
DBStore.AddStatus(strDocId, "strFileDownloadUrl", strFileDownloadUrl);
switch (enumStatus)
{
case TrackerStatus.MustSave:
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(strFileDownloadUrl);
try
{
var storagePath = Sample.StoragePath(strFileName);
if (DBStore.GetDocStatus(strDocId) == "OkClicked" ||
DBStore.GetDocStatus(strDocId) == "EDITOR_CLOSED")
{
//--- This is the document stream sent from Document Service
using (var stream = req.GetResponse().GetResponseStream())
{
if (stream == null)
{
throw new Exception("stream is null");
}
const int bufferSize = 4096;
using (var fs = File.Open(storagePath, FileMode.Create))
{
var buffer = new byte[bufferSize];
int readed;
while ((readed = stream.Read(buffer, 0, bufferSize)) != 0)
{
fs.Write(buffer, 0, readed);
}
}
}
DBStore.UpdateDocStatus(strDocId, enumStatus.ToString(), "WebEditor.Track: Saved Path: " + storagePath);
DBStore.AddStatus(strDocId, "Command Service", "Start");
string strRes = ServiceConverter.GetCommandService("drop", strDocKey, "", (new List <string>()
{
strUser
}));
DBStore.AddStatus(strDocId, "Command Service", strRes);
}
else
{
DBStore.UpdateDocStatus(strDocId, enumStatus.ToString(), "WebEditor.Track: NOT SAVED");
}
}
catch (Exception ex)
{
DBStore.AddStatus(strDocId, "Exception", ex.ToString());
}
break;
case TrackerStatus.Corrupted:
case TrackerStatus.ForceSave:
case TrackerStatus.Closed:
break;
case TrackerStatus.Editing:
//--- Check User and Key combination and set the status of document
strStatus = "0";
break;
}
context.Response.Write("{\"error\":" + strStatus + "}");
}
public TrackerException(TrackerStatus status, string message)
: base(message)
{
this.status = status;
}
