/* Methode zum asynchronen Download einer Datei */ public void DownloadAsync(string url, Stream destStream, int blockSize, DownloadProgress downloadProgress, DownloadEnd downloadEnd) { // Das Download-Status-Objekt, das über das Status- // Feld des asynchronen Aufrufs weitergegeben wird, // erzeugen und initialisieren DownloadStatus downloadStatus = new DownloadStatus(); downloadStatus.BlockSize = blockSize; downloadStatus.ReadBuffer = new Byte[blockSize]; downloadStatus.DownloadProgress = downloadProgress; downloadStatus.DownloadEnd = downloadEnd; downloadStatus.DestStream = destStream; downloadStatus.manualResetEvent = new ManualResetEvent(false); downloadStatus.manualResetEvent.Reset(); // WebRequest-Instanz für den Download erzeugen downloadStatus.Request = WebRequest.Create(url); // Die Antwort asynchron abfragen IAsyncResult asyncResult = (IAsyncResult)downloadStatus.Request.BeginGetResponse( new AsyncCallback(ResponseCallback), downloadStatus); //downloadStatus.manualResetEvent.WaitOne(); }
/* Konstruktor */ public Download(string url, Stream destStream, int blockSize, DownloadProgress downloadProgress, DownloadEnd downloadEnd, DownloadError downloadError) { this.Url = url; this.BlockSize = blockSize; this.DownloadProgress = downloadProgress; this.DownloadEnd = downloadEnd; this.DestStream = destStream; this.DownloadError = downloadError; }
/* Methode zum synchronen Download einer Datei */ public void DownloadSync(string url, Stream destStream, int blockSize, DownloadProgress downloadProgress, DownloadEnd downloadEnd, DownloadError downloadError) { // Download-Objekt erzeugen und initialisieren Download download = new Download(url, destStream, blockSize, downloadProgress, downloadEnd, downloadError); // Download synchron starten download.PerformDownload(); }
/* Konstruktor */ public Download(string url, Stream destStream, int blockSize, DownloadProgress downloadProgress, DownloadEnd downloadEnd, DownloadError downloadError) { this.Url = url; this.BlockSize = blockSize; this.DownloadProgress = downloadProgress; this.DownloadEnd = downloadEnd; this.DestStream = destStream; this.DownloadError = downloadError ; }
/* Methode zum synchronen Download einer Datei */ public void DownloadSync(string url, Stream destStream, int blockSize, DownloadProgress downloadProgress, DownloadEnd downloadEnd, DownloadError downloadError) { // Download-Objekt erzeugen und initialisieren Download download = new Download(url, destStream, blockSize, downloadProgress, downloadEnd, downloadError); // Download synchron starten download.PerformDownload(); }
/* Methode zum asynchronen Download einer Datei */ public void DownloadAsync(string url, Stream destStream, int blockSize, DownloadProgress downloadProgress, DownloadEnd downloadEnd, DownloadError downloadError) { // Download-Objekt erzeugen und initialisieren Download download = new Download(url, destStream, blockSize, downloadProgress, downloadEnd, downloadError); // Thread für den Download starten Thread downloadThread = new Thread(new ThreadStart(download.PerformDownload)); downloadThread.Start(); }
/* Methode zum asynchronen Download einer Datei */ public void DownloadAsync(string url, Stream destStream, int blockSize, DownloadProgress downloadProgress, DownloadEnd downloadEnd, DownloadError downloadError) { // Download-Objekt erzeugen und initialisieren Download download = new Download(url, destStream, blockSize, downloadProgress, downloadEnd, downloadError); // Thread für den Download starten Thread downloadThread = new Thread(new ThreadStart(download.PerformDownload)); downloadThread.Start(); }
private void Completed(object sender, AsyncCompletedEventArgs e) { sw.Reset(); if (e.Cancelled == true) { MessageBox.Show("Download has been canceled."); } else { Debug.WriteLine("Download completed!"); DownloadEnd?.Invoke(this, EventArgs.Empty); } }
/* Methode zum synchronen Download einer Datei */ public void DownloadSync(string url, Stream destStream, int blockSize, DownloadProgress downloadProgress, DownloadEnd downloadEnd) { // WebRequest-Instanz für den Download erzeugen WebRequest request = WebRequest.Create(url); // Die Antwort anfordern WebResponse response = request.GetResponse(); long fileSize = response.ContentLength; // Den Antwort-Stream ermitteln Stream responseStream = response.GetResponseStream(); // Stream blockweise lesen und in den Zielstream schreiben int bytesRead = 0; int totalBytesRead = 0; byte[] buffer = new byte[blockSize]; do { bytesRead = responseStream.Read(buffer, 0, blockSize); totalBytesRead += bytesRead; destStream.Write(buffer, 0, bytesRead); // Fortschritt melden if (downloadProgress != null) { downloadProgress(DownloadState.ReadingData, totalBytesRead, fileSize); } } while (bytesRead > 0); // Den Response-Stream und das WebResponse-Objekt schließen responseStream.Close(); response.Close(); // Ende des Download melden if (downloadEnd != null) { downloadEnd(destStream); } }
private Task <bool> RunSyncItem(Manifest.SyncItem f, bool verify, bool simulate, DownloadProgressChanged dpc, DownloadEnd de, DownloadMessage dm, CancellationTokenSource cts, string overrideDestination = null) { switch (f.type) { case "rsync": RSyncDownloader dd = new RSyncDownloader(this); dd.appPath = AppPath; dd.tmpPath = TmpPath; dd.VerifyChecksums = verify; dd.Simulate = simulate; return(dd.Download(LatestManifest.rsyncUrl + "/" + f.name, f, RootPath, dpc, de, dm, cts, overrideDestination)); case "delete": return(Task <bool> .Run(() => { if (f.name.EndsWith("/") && Directory.Exists(RootPath + "/" + f.name)) { dm.Invoke("Deleting directory " + f.name); Directory.Delete(RootPath + "/" + f.name, true); } else if (File.Exists(RootPath + "/" + f.name)) { dm.Invoke("Deleting file " + f.name); File.Delete(RootPath + "/" + f.name); } return true; })); default: return(null); } }
private Task<bool> RunSyncItem(Manifest.SyncItem f, bool verify, bool simulate, DownloadProgressChanged dpc, DownloadEnd de, DownloadMessage dm, CancellationTokenSource cts, string overrideDestination = null) { switch (f.type) { case "rsync": RSyncDownloader dd = new RSyncDownloader(this); dd.appPath = AppPath; dd.tmpPath = TmpPath; dd.VerifyChecksums = verify; dd.Simulate = simulate; return dd.Download(LatestManifest.rsyncUrl + "/" + f.name, f, RootPath, dpc, de, dm, cts, overrideDestination); case "delete": return Task<bool>.Run(() => { if (f.name.EndsWith("/") && Directory.Exists(RootPath + "/" + f.name)) { dm.Invoke("Deleting directory " + f.name); Directory.Delete(RootPath + "/" + f.name, true); } else if (File.Exists(RootPath + "/" + f.name)) { dm.Invoke("Deleting file " + f.name); File.Delete(RootPath + "/" + f.name); } return true; }); default: return null; } }
public static void OnDownloadEnd(object sender, DownloadEventArgs ev) => DownloadEnd?.Invoke(sender, ev);
private void OnDownloadEnd(DownloadEndEventArgs e) { try { DownloadEnd?.Invoke(this, e); } catch { } }