private async Task <bool> ReadPart(MultipartFormDataStreamProvider provider)
{
try
{
return(await Request.Content.ReadAsMultipartAsync(provider).ContinueWith <bool>(x =>
{
if (x.IsFaulted || x.IsCanceled)
{
return false;
}
ResumableConfiguration configuration = GetUploadConfiguration(x.Result);
int chunkNumber = GetChunkNumber(x.Result);
// Rename generated file
MultipartFileData chunk = x.Result.FileData[0]; // Only one file in multipart message
RenameChunk(chunk, chunkNumber, configuration.Identifier);
// Assemble chunks into single file if they're all here
TryAssembleFile(configuration);
return true;
}));
}
catch
{
return(false);
}
}
private void TryAssembleFile(ResumableConfiguration configuration)
{
if (AllChunksAreHere(configuration))
{
// Create a single file
var path = ConsolidateFile(configuration);
var extension = configuration.FileName.Split('.');
var fileName = Guid.NewGuid();
// Rename consolidated with original name of upload
RenameFile(path, Path.Combine(root, fileName.ToString() + (extension.Length > 1 ? "." + extension[extension.Length - 1] : "")));
// Delete chunk files
DeleteChunks(configuration);
var request = new InsertFileRequest()
{
CreatedDate = DateTime.Now,
IdUser = int.Parse(User.GetUserId()),
Name = configuration.FileName,
Size = configuration.Size,
NomeInterno = fileName
};
JsonConvert.DeserializeObject <InsertFileResponse>
(ServiceApiUtil.ApiResponse("api/file/Insert", "POST", request));
}
}
private ResumableConfiguration GetUploadConfiguration(MultipartFormDataStreamProvider provider)
{
return(ResumableConfiguration.Create(identifier: GetId(provider),
filename: GetFileName(provider),
chunks: GetTotalChunks(provider),
size: GetTotalSize(provider)));
}
private void DeleteChunks(ResumableConfiguration configuration)
{
for (int chunkNumber = 1; chunkNumber <= configuration.Chunks; chunkNumber++)
{
var chunkFileName = GetChunkFileName(chunkNumber, configuration.Identifier);
File.Delete(chunkFileName);
}
}
private bool AllChunksAreHere(ResumableConfiguration configuration)
{
for (int chunkNumber = 1; chunkNumber <= configuration.Chunks; chunkNumber++)
{
if (!ChunkIsHere(chunkNumber, configuration.Identifier))
{
return(false);
}
}
return(true);
}
private void TryAssembleFile(ResumableConfiguration configuration)
{
if (AllChunksAreHere(configuration))
{
// Create a single file
var path = ConsolidateFile(configuration);
// Rename consolidated with original name of upload
RenameFile(path, Path.Combine(root, configuration.FileName));
// Delete chunk files
DeleteChunks(configuration);
}
}
private string ConsolidateFile(ResumableConfiguration configuration)
{
var path = GetFilePath(configuration);
using (var destStream = File.Create(path, 15000))
{
for (int chunkNumber = 1; chunkNumber <= configuration.Chunks; chunkNumber++)
{
var chunkFileName = GetChunkFileName(chunkNumber, configuration.Identifier);
using (var sourceStream = File.OpenRead(chunkFileName))
{
sourceStream.CopyTo(destStream);
}
}
destStream.Close();
}
return(path);
}
private async Task <bool> readPart(MultipartFormDataStreamProvider provider)
{
try
{
await Request.Content.ReadAsMultipartAsync(provider);
ResumableConfiguration configuration = GetUploadConfiguration(provider);
int chunkNumber = GetChunkNumber(provider);
// Rename generated file
MultipartFileData chunk = provider.FileData[0]; // Only one file in multipart message
RenameChunk(chunk, chunkNumber, configuration.Identifier);
// Assemble chunks into single file if they're all here
TryAssembleFile(configuration);
return(true);
}
catch {
return(false);
}
}
private void TryAssembleFile(ResumableConfiguration configuration)
{
if (AllChunksAreHere(configuration))
{
// Create a single file
var path = ConsolidateFile(configuration);
// Rename consolidated with original name of upload
RenameFile(path, Path.Combine(root, configuration.FileName));
// Delete chunk files
DeleteChunks(configuration);
var request = new Domain.Arguments.File.InsertFileRequest()
{
CreatedDate = DateTime.Now,
IdUser = 1,
Name = "file.name",
Size = 12312
};
var response = _serviceFile.InsertFile(request);
}
}
private string GetFilePath(ResumableConfiguration configuration)
{
return(Path.Combine(root, configuration.Identifier));
}
