private FileHttpResponseMessage GetFileResponse(string fileName)
{
FileHttpResponseMessage result = new FileHttpResponseMessage(fileName);
result.StatusCode = HttpStatusCode.OK;
var stream = new FileStream(fileName, FileMode.Open);
result.Content = new StreamContent(stream);
result.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment");
result.Content.Headers.ContentDisposition.FileName = Path.GetFileName(fileName);
result.Content.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
result.Content.Headers.ContentLength = stream.Length;
return(result);
}
public async Task <IHttpActionResult> Download(string url)
{
Log.Info("Request for {0}", Request.RequestUri);
using (var transaction = db.Database.BeginTransaction())
{
try
{
Guid guidFromUrl;
if (!Guid.TryParse(url, out guidFromUrl))
{
Log.Warn("Wrong request format. Wrong Guid: {0}", url);
return(BadRequest("Wrong format of last Url parameter"));
}
var tradeFile = db.TradeFiles.AsNoTracking().FirstOrDefault(f => f.URL.Equals(url));
if (tradeFile == null)
{
Log.Warn("File by such Guid doesn't exist anymore.");
return(BadRequest("File by such Url doesn't exist anymore"));
}
FileHttpResponseMessage result = GetFileResponse(tradeFile.Name);
var res = ResponseMessage(result);
db.TradeFiles.Attach(tradeFile);
db.Entry(tradeFile).State = EntityState.Deleted;
await db.SaveChangesAsync();
transaction.Commit();
return(res);
}
catch (Exception ex)
{
transaction.Rollback();
Log.Error("Exception message {0}. Stack Trace: {1}", ex.Message, ex.StackTrace);
return(ResponseMessage(new HttpResponseMessage(HttpStatusCode.InternalServerError)));
}
}
}
