protected override void TransferChunk(MegaChunk chunk, Action transferCompleteFn)
{
if (chunk.Handle.SkipChunks) { transferCompleteFn(); return; }
var wc = new WebClient();
wc.Proxy = transport.Proxy;
chunk.Handle.ChunkTransferStarted(wc);
wc.DownloadDataCompleted += (s, e) =>
{
transferCompleteFn();
chunk.Handle.ChunkTransferEnded(wc);
if (e.Cancelled) { return; }
if (e.Error != null)
{
chunk.Handle.BytesTransferred(0 - chunk.transferredBytes);
chunk.transferredBytes = 0;
EnqueueTransfer(new List<MegaChunk> { chunk }, true);
}
else
{
chunk.Data = e.Result;
EnqueueCrypt(new List<MegaChunk> { chunk });
}
};
wc.DownloadProgressChanged += (s, e) => OnDownloadedBytes(chunk, e.BytesReceived);
var url = ((DownloadHandle)chunk.Handle).DownloadUrl;
url += String.Format("/{0}-{1}", chunk.Offset, chunk.Offset + chunk.Size - 1);
wc.DownloadDataAsync(new Uri(url));
}
protected override void CryptChunk(MegaChunk chunk)
{
byte[] data = new byte[chunk.Size];
var hndl = chunk.Handle;
try
{
lock (streamLock)
{
hndl.Stream.Seek(chunk.Offset, SeekOrigin.Begin);
hndl.Stream.Read(data, 0, data.Length);
}
}
catch
{
hndl.CancelTransfer(MegaApiError.ESYSTEM);
return;
}
chunk.Mac = Crypto.EncryptCtr(chunk.Handle.AesAlg, data, chunk.Handle.Nonce, chunk.Offset);
chunk.Data = data;
EnqueueTransfer(new List<MegaChunk>{chunk});
}
protected abstract void TransferChunk(MegaChunk megaChunk, Action transferCompleteFn);
protected abstract void CryptChunk(MegaChunk chunk);
protected void OnUploadedBytes(MegaChunk chunk, long bytes)
{
var delta = bytes - chunk.transferredBytes;
chunk.transferredBytes = bytes;
chunk.Handle.BytesTransferred(delta);
}
protected override void CryptChunk(MegaChunk chunk)
{
var data = chunk.Data;
var hndl = chunk.Handle;
chunk.Mac = Crypto.DecryptCtr(chunk.Handle.AesAlg, data, chunk.Handle.Nonce, chunk.Offset);
lock(streamLock)
{
hndl.Stream.Seek(chunk.Offset, SeekOrigin.Begin);
hndl.Stream.Write(data, 0, chunk.Size);
}
hndl.chunksProcessed++;
chunk.ClearData();
if (chunk.Handle.chunksProcessed == chunk.Handle.Chunks.Count)
{
Util.StartThread(() =>
{
FinishFile((DownloadHandle)chunk.Handle);
}, "transfer_finish_file");
}
}
protected override void TransferChunk(MegaChunk chunk, Action transferCompleteFn)
{
if (chunk.Handle.SkipChunks) { transferCompleteFn(); return; }
var wc = new WebClient();
wc.Proxy = transport.Proxy;
chunk.Handle.ChunkTransferStarted(wc);
wc.UploadDataCompleted += (s, e) =>
{
chunk.Handle.ChunkTransferEnded(wc);
transferCompleteFn();
if (e.Cancelled) { return; }
if (e.Error != null)
{
chunk.Handle.BytesTransferred(0 - chunk.transferredBytes);
EnqueueTransfer(new List<MegaChunk>{chunk}, true);
}
else { OnUploadedChunk(chunk, e); }
};
wc.UploadProgressChanged += (s, e) => OnUploadedBytes(chunk, e.BytesSent);
var url = String.Format(((UploadHandle)chunk.Handle).UploadUrl + "/{0}", chunk.Offset);
wc.UploadDataAsync(new Uri(url), chunk.Data);
}
private void OnUploadedChunk(MegaChunk chunk, UploadDataCompletedEventArgs e)
{
chunk.ClearData();
chunk.Handle.chunksProcessed++;
if (chunk.Handle.chunksProcessed == chunk.Handle.Chunks.Count)
{
Util.StartThread(() =>
{
var uploadHandle = Encoding.UTF8.GetString(e.Result);
FinishFile((UploadHandle)chunk.Handle, uploadHandle);
}, "transfer_finish_file");
}
}
