public async Task <IActionResult> UploadChunk(int segment)
{
if (Request.Form.Files != null && Request.Form.Files.Count > 0)
{
var file = Request.Form.Files[0];
var fileName = file.GetFileName();
using (var fileStream = file.OpenReadStream())
{
using (var memoryStream = new MemoryStream())
{
await fileStream.CopyToAsync(memoryStream);
var resp = await _swiftService.PutObjectChunk(containerTempId, fileName, memoryStream.ToArray(), segment);
return(new JsonResult(new
{
ContentType = file.ContentType,
FileName = fileName ?? "demofile",
Status = resp.StatusCode,
Message = resp.Reason,
Success = resp.IsSuccess
}));
}
}
}
return(new JsonResult(new
{
Success = false
}));
}
public static async Task <SwiftBaseResponse> PutLargeObject(this ISwiftClient client, string containerId, string objectId, Stream stream, Dictionary <string, string> headers = null, Action <long, long> progress = null, long bufferSize = 1000000, bool checkIntegrity = false)
{
SwiftBaseResponse response = null;
byte[] buffer = new byte[bufferSize];
string containerTemp = "tmp_" + Guid.NewGuid().ToString("N");
int bytesRead, chunk = 0;
response = await client.PutContainer(containerTemp).ConfigureAwait(false);
if (!response.IsSuccess)
{
return(response);
}
while ((bytesRead = stream.Read(buffer, 0, buffer.Length)) > 0)
{
using (MemoryStream tmpStream = new MemoryStream())
{
tmpStream.Write(buffer, 0, bytesRead);
response = await client.PutObjectChunk(containerTemp, objectId, tmpStream.ToArray(), chunk).ConfigureAwait(false);
}
progress?.Invoke(chunk, bytesRead);
if (!response.IsSuccess)
{
// cleanup
await client.DeleteContainerWithContents(containerTemp).ConfigureAwait(false);
return(response);
}
chunk++;
}
Dictionary <string, string> integrityHeaders = null;
if (checkIntegrity)
{
using (var md5 = MD5.Create())
{
var eTag = BitConverter.ToString(md5.ComputeHash(stream)).Replace("-", "").ToLower();
integrityHeaders = new Dictionary <string, string>()
{
{ "ETag", eTag }
};
}
}
// use manifest to merge chunks
response = await client.PutManifest(containerTemp, objectId, integrityHeaders).ConfigureAwait(false);
if (!response.IsSuccess)
{
// cleanup
await client.DeleteContainerWithContents(containerTemp).ConfigureAwait(false);
return(response);
}
// copy chunks to new file
response = await client.CopyObject(containerTemp, objectId, containerId, objectId, headers).ConfigureAwait(false);
if (!response.IsSuccess)
{
// cleanup
await client.DeleteContainerWithContents(containerTemp).ConfigureAwait(false);
return(response);
}
// cleanup temp
return(await client.DeleteContainerWithContents(containerTemp).ConfigureAwait(false));
}