public async Task <bool> UpdateIfNeeded(ProgressDialog dialog)
{
var tempFile = Path.GetTempFileName();
try
{
using (var client = new WebClient())
{
client.DownloadProgressChanged += (sender, e) => dialog.Invoke(new Action(() => dialog.SetProgress(e.ProgressPercentage)));
if (AvailableLocales.Count > 0)
{
client.Headers[HttpRequestHeader.IfNoneMatch] = string.Format("\"{0}\"", Settings.TranslationsBuild);
}
await client.DownloadFileTaskAsync(new Uri("https://dl.nul.sh/USBHelperLauncher/translations.zip?v=1"), tempFile);
Settings.TranslationsBuild = client.ResponseHeaders[HttpResponseHeader.ETag].Trim('"');
Settings.Save();
}
if (!Directory.Exists("locale"))
{
Directory.CreateDirectory("locale");
}
using (var zip = ZipFile.OpenRead(tempFile))
{
foreach (var entry in zip.Entries)
{
var fileName = Path.Combine("locale", entry.Name);
entry.ExtractToFile(fileName, true);
}
}
dirty = true;
return(true);
}
catch (WebException e) when(((HttpWebResponse)e.Response)?.StatusCode == HttpStatusCode.NotModified)
{
return(false);
}
finally
{
File.Delete(tempFile);
}
}