private async Task <UploadProcessingResult> ProcessChunk(HttpRequestMessage request)
{
//use the unique identifier sent from client to identify the file
FileChunkMetaData chunkMetaData = request.GetChunkMetaData();
string filePath = Path.Combine(_uploadPath, string.Format("{0}.temp", chunkMetaData.ChunkIdentifier));
//append chunks to construct original file
using (FileStream fileStream = new FileStream(filePath, FileMode.OpenOrCreate | FileMode.Append))
{
var localFileInfo = new FileInfo(LocalFileName);
var localFileStream = localFileInfo.OpenRead();
await localFileStream.CopyToAsync(fileStream);
await fileStream.FlushAsync();
fileStream.Close();
localFileStream.Close();
//delete chunk
localFileInfo.Delete();
}
return(new UploadProcessingResult()
{
IsComplete = chunkMetaData.IsLastChunk,
FileName = OriginalFileName,
LocalFilePath = chunkMetaData.IsLastChunk ? filePath : null,
FileMetadata = _streamProvider.FormData
});
}
private async Task <UploadProcessingResult> ProcessChunk(HttpRequestMessage request)
{
//use the unique identifier sent from client to identify the file
FileChunkMetaData chunkMetaData = request.GetChunkMetaData();
string partPath = string.Format("{0}.part", OriginalFileName);
string filePath = Path.Combine(UserLocalPath, partPath);
await AppendChunkFileToFile(LocalFileName, filePath);
if (chunkMetaData.IsLastChunk)
{
File.Move(filePath, FinalFilePath);
}
return(new UploadProcessingResult()
{
IsComplete = chunkMetaData.IsLastChunk,
FileName = OriginalFileName,
LocalFilePath = chunkMetaData.IsLastChunk ? FinalFilePath : null,
FileMetadata = _streamProvider.FormData
});
}
private Boolean FileExist(HttpRequestMessage request)
{
Boolean check = false;
if (request.IsChunkUpload())
{
FileChunkMetaData chunkMetaData = request.GetChunkMetaData();
check = chunkMetaData.IsFirstChunk;
}
else
{
check = true;
}
if (check)
{
if (File.Exists(Path.Combine(UserLocalPath, request.Content.Headers.ContentDisposition.FileName.Trim('"'))))
{
return(true);
}
}
return(false);
}
