public ActionResult File(string location, int id)
{
var metadata = this.db.FileMetadatas.SingleOrDefault(f => f.Id == id);
if (metadata != null)
{
var containerName = location.Split("\\".ToCharArray(), 2).FirstOrDefault();
if (containerName == metadata.ContainerName)
{
var fileName = metadata.SourceFileName;
var stream = this.storage.DownloadFileFromStorage(containerName, metadata.BlobName);
if (stream == null)
{
return(new StatusCodeResult(HttpStatusCode.NotFound));
}
using (stream)
using (var memoryStream = new MemoryStream())
{
stream.CopyTo(memoryStream);
return(this.File(memoryStream.ToArray(), MimeTypesHelper.GetContentType(fileName), fileName));
}
}
}
return(new StatusCodeResult(HttpStatusCode.NotFound));
}
public ActionResult File(int id)
{
var dbPatientFile = this.db.PatientFiles.Include("FileMetadata").First(m => m.Id == id);
DateTime modifiedSince;
bool hasModifiedSince = DateTime.TryParse(this.Request.Headers.Get("If-Modified-Since"), out modifiedSince);
// File in the database never change after they are uploaded.
// They can be deleted though.
if (dbPatientFile == null)
{
return(new StatusCodeResult(HttpStatusCode.NotFound));
}
// If the request suggests that the client has any previous version of the file,
// then just indicate it hasn't changed, since these images never change.
if (hasModifiedSince)
{
return(new StatusCodeResult(HttpStatusCode.NotModified));
}
// Caching file forever.
this.HttpContext.Response.Cache.SetCacheability(HttpCacheability.Public);
this.HttpContext.Response.Cache.SetMaxAge(DebugConfig.IsDebug ? TimeSpan.FromMinutes(1) : TimeSpan.MaxValue);
this.HttpContext.Response.Cache.SetLastModified(this.datetimeService.UtcNow);
var metadata = dbPatientFile.FileMetadata;
if (metadata != null)
{
var fileName = metadata.SourceFileName;
var stream = this.storage.DownloadFileFromStorage(metadata.ContainerName, metadata.BlobName);
if (stream == null)
{
return(new StatusCodeResult(HttpStatusCode.NotFound));
}
using (stream)
using (var memoryStream = new MemoryStream())
{
stream.CopyTo(memoryStream);
return(this.File(memoryStream.ToArray(), MimeTypesHelper.GetContentType(fileName), fileName));
}
}
return(new StatusCodeResult(HttpStatusCode.NotFound));
}