public async Task <IActionResult> Download(string filename)
{
if (filename == null)
{
return(Content("filename not present"));
}
var file = await _downloadService.DownloadFileAsync(filename);
return(File(file.File, file.MimeType, file.Name));
}
private async Task <string> HashResourcePack(string url, IProgress <float> downloadProgress, Server server)
{
string result = "";
if (string.IsNullOrEmpty(url))
{
return(result);
}
//ensure tmp directory
new DirectoryInfo(Path.Combine(_application.AppPath, "tmp")).Create();
FileInfo resourcePackFile = new FileInfo(
Path.Combine(_application.AppPath, "tmp", Guid.NewGuid().ToString()
.Replace("-", "") + ".zip"));
//Download the resource pack
var client = new HttpClient();
HttpResponseMessage response = await client.SendAsync(new HttpRequestMessage(HttpMethod.Head, url));
if (response.Headers.GetValues("ContentType").All(h => h != "application/zip"))
{
await _console.WriteError(server,
"Failed to generate resource-pack hash: No zip at URL\nResuming with no hash...");
return(result);
}
await _download.DownloadFileAsync(url, resourcePackFile.FullName, downloadProgress, CancellationToken.None);
//Calculate sha-1
await using (FileStream fs = resourcePackFile.OpenRead())
{
await using var bs = new BufferedStream(fs);
using (SHA1 sha1 = SHA1.Create())
{
byte[] hash = await sha1.ComputeHashAsync(bs);
StringBuilder formatted = new StringBuilder(2 * hash.Length);
foreach (var b in hash)
{
formatted.Append($"{b:X2}");
}
result = formatted.ToString();
}
}
resourcePackFile.Delete();
return(result);
}
/// <summary>
/// Starts the download async.
/// </summary>
/// <returns>The download async.</returns>
public async Task StartDownloadAsync()
{
var progressIndicator = new Progress <double>(ReportProgress);
var cts = new CancellationTokenSource();
try
{
IsDownloading = true;
var url = "https://github.com/damienaicheh/XamarinAndroidParcelable/archive/master.zip";
await _downloadService.DownloadFileAsync(url, progressIndicator, cts.Token);
}
catch (OperationCanceledException ex)
{
System.Diagnostics.Debug.WriteLine(ex.ToString());
//Manage cancellation here
}
finally
{
IsDownloading = false;
}
}
public async Task StartDownloadAsync(Dokument dokument)
{
var progressIndicator = new Progress <double>(ReportProgress);
var cts = new CancellationTokenSource();
try
{
IsDownloading = true;
var url = "http://localhost:53404/api/Dokument/PreuzmiDokument/" + dokument.DokumentId;
await _downloadService.DownloadFileAsync(url, progressIndicator, cts.Token);
}
catch (OperationCanceledException ex)
{
System.Diagnostics.Debug.WriteLine(ex.ToString());
//Manage cancellation here
}
finally
{
IsDownloading = false;
}
}
/// <summary>
/// Starts the download async.
/// </summary>
/// <returns>The download async.</returns>
public async Task StartDownloadAsync()
{
var progressIndicator = new Progress <double>(ReportProgress);
var cts = new CancellationTokenSource();
try
{
IsDownloading = true;
var url = "https://sample-videos.com/img/Sample-jpg-image-5mb.jpg";
await _downloadService.DownloadFileAsync(url, progressIndicator, cts.Token);
}
catch (OperationCanceledException ex)
{
System.Diagnostics.Debug.WriteLine(ex.ToString());
//Manage cancellation here
}
finally
{
IsDownloading = false;
}
}
