public async Task <HttpResponseMessage> GetBlobDownload(string id)
{
// IMPORTANT: This must return HttpResponseMessage instead of IHttpActionResult
Int32 blobId = Convert.ToInt32(id);
try
{
var result = await _service.DownloadBlob(blobId);
if (result == null)
{
return(new HttpResponseMessage(HttpStatusCode.NotFound));
}
// Reset the stream position; otherwise, download will not work
result.BlobStream.Position = 0;
// Create response message with blob stream as its content
var message = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new StreamContent(result.BlobStream)
};
// Set content headers
message.Content.Headers.ContentLength = result.BlobLength;
message.Content.Headers.ContentType = new MediaTypeHeaderValue(result.BlobContentType);
message.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment")
{
FileName = HttpUtility.UrlDecode(result.BlobFileName),
Size = result.BlobLength
};
return(message);
}
catch (Exception ex)
{
return(new HttpResponseMessage
{
StatusCode = HttpStatusCode.InternalServerError,
Content = new StringContent(ex.Message)
});
}
}
public async Task <IHttpActionResult> GetFile(string blobName)
{
try
{
var result = await _service.DownloadBlob(blobName);
if (result == null)
{
return(NotFound());
}
// Reset the stream position; otherwise, download will not work
result.BlobStream.Position = 0;
// Create response message with blob stream as its content
var message = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new StreamContent(result.BlobStream)
};
// Set content headers
message.Content.Headers.ContentLength = result.BlobLength;
message.Content.Headers.ContentType = new MediaTypeHeaderValue(result.BlobContentType);
message.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment")
{
FileName = HttpUtility.UrlDecode(result.BlobFileName),
Size = result.BlobLength
};
return(ResponseMessage(message));
}
catch (Exception ex)
{
return(ResponseMessage(new HttpResponseMessage()
{
StatusCode = HttpStatusCode.InternalServerError,
Content = new StringContent(ex.Message)
}));
}
}
/// <summary>
/// Downloads a blob file.
/// </summary>
/// <param name="blobId">The ID of the blob.</param>
/// <returns></returns>
public async Task <HttpResponseMessage> GetBlobDownload(string voucherCode)
{
var voucher = db.Vouchers.Where(i => i.VoucherCode == voucherCode).FirstOrDefault();
var blob = voucher.VoucherFileId;
if (voucher == null)
{
return(new HttpResponseMessage(HttpStatusCode.Forbidden));
}
if (blob.FileId != voucher.VoucherFileId.FileId)
{
return(new HttpResponseMessage(HttpStatusCode.Forbidden));
}
// IMPORTANT: This must return HttpResponseMessage instead of IHttpActionResult
try
{
var result = await _service.DownloadBlob(blob.FileId);
if (result == null)
{
return(new HttpResponseMessage(HttpStatusCode.NotFound));
}
// Reset the stream position; otherwise, download will not work
result.BlobStream.Position = 0;
// Create response message with blob stream as its content
var message = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new StreamContent(result.BlobStream)
};
// Set content headers
message.Content.Headers.ContentLength = result.BlobLength;
message.Content.Headers.ContentType = new MediaTypeHeaderValue(result.BlobContentType);
message.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment")
{
FileName = HttpUtility.UrlDecode(result.BlobFileName),
Size = result.BlobLength
};
voucher.VoucherRedeemed = true;
voucher.VoucherRedemptionCounter++;
voucher.VoucherRedemptionDate = DateTime.Now;
await db.SaveChangesAsync();
return(message);
}
catch (Exception ex)
{
return(new HttpResponseMessage
{
StatusCode = HttpStatusCode.InternalServerError,
Content = new StringContent(ex.Message)
});
}
}
