public async Task <bool> LoadInfoFromServer()
{
bool success;
try
{
var response = await client.GetProcessedFile(Config.UpdateInfoFilename);
if (response.IsSuccessful)
{
var sr = new StreamReader(response.Stream);
var raw = await sr.ReadToEndAsync();
sr.Close();
UpdateInfo = JObject.Parse(raw).ToObject <UpdateInfo>();
}
success = true;
}
catch (Exception)
{
success = false;
}
return(success);
}
/// <summary>
/// Downloades the File at the given sourceUri into a Temp file in the
/// local System.
/// FileInfo for this Temp File will be returend
/// </summary>
/// <param name="dstUri"></param>
/// <returns></returns>
public FileInfo DownloadRemoteFileToTemp(CancellationToken cancleToken, string sourceUri)
{
sourceUri = _config.Remote.RemoteFolderPath.RemoveTailingSlashes() + sourceUri;
//No locks needed at this time because we will only read the File!
try
{
using (Stream webstream = _webDavClient.GetProcessedFile(sourceUri).Result.Stream)
{
//Writing the WebStream to the new generated file
string tempFile = string.Format("/tmp/WebDavSync{0}.tmp", Guid.NewGuid().ToString());
_logger.Debug("Downloading remote file " + sourceUri + " to temp dst " + tempFile);
bool wasCancled = false;
using (var filestream = new FileStream(tempFile, FileMode.CreateNew, FileAccess.ReadWrite,
FileShare.None))
{
byte[] buffer = new byte[5120]; // read in chunks of 5KB
int bytesRead;
//As long as we can ready data, write the Data to the
//new File
while ((bytesRead = webstream.Read(buffer, 0, buffer.Length)) > 0 && !wasCancled)
{
if (cancleToken.IsCancellationRequested)
{
wasCancled = true;
}
else
{
filestream.Write(buffer, 0, bytesRead);
}
}
if (!wasCancled)
{
_logger.Debug("Download successful");
}
if (wasCancled)
{
_logger.Debug("Download was cancled");
}
}
FileInfo tmpFile = new FileInfo(tempFile);
//Cleanup in case cancleation is requested
if (wasCancled)
{
tmpFile.Delete();
return(null);
}
return(tmpFile);
}
} catch (Exception exc)
{
_logger.Error("Error while downloading remote File as Temp file", exc);
return(null);
}
}
public async Task <Stream> DownloadFile(string relativeFilePath)
{
using (var client = new WebDavClient(_webDavClientParams))
{
var res = await client.GetProcessedFile(relativeFilePath);
if (!res.IsSuccessful || res.StatusCode == 404)
{
throw new FileNotFoundException($"Cannot find file {relativeFilePath}");
}
return(res.Stream);
}
}
