private string SendFinished(IWebServer sender, RequestDetails request)
{
try
{
var query = QueryHelpers.ParseQuery(request.Url.Query);
var success = (query["success"][0].ToLower() == "true");
var message = "";
string[] parts = request.Url.AbsolutePath.Split(new char[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
var key = parts[0];
if (success)
{
FileTransferProgressInternal?.Invoke(this, new FileTransferProgressEventArgs {
CurrentPart = keyTable[key].lastSliceId + 1, Total = keyTable[key].lastSliceId + 1, State = FileTransferState.Finished
});
}
else
{
message = query["message"][0];
FileTransferProgressInternal?.Invoke(this, new FileTransferProgressEventArgs {
CurrentPart = keyTable[key].lastSliceId + 1, Total = keyTable[key].lastSliceId + 1, State = FileTransferState.Error, Message = message
});
}
fileSendTcs?.TrySetResult(message);
}
catch (Exception ex)
{
fileSendTcs?.TrySetResult(ex.Message);
}
return("OK");
}
private void ClearInternalEventSubscribers()
{
if (FileTransferProgressInternal == null)
{
return;
}
foreach (var d in FileTransferProgressInternal.GetInvocationList())
{
FileTransferProgressInternal -= (d as FileTransferProgressEventHandler);
}
}
private async Task <byte[]> GetFileSlice(IWebServer sender, RequestDetails request)
{
try
{
string[] parts = request.Url.AbsolutePath.Split(new char[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
var key = parts[0];
ulong id = ulong.Parse(parts[1]);
if (id >= keyTable[key].lastPieceAccessed)
{
FileTransferProgressInternal?.Invoke(this, new FileTransferProgressEventArgs {
CurrentPart = id + 1, Total = keyTable[key].lastSliceId + 1, State = FileTransferState.DataTransfer
});
keyTable[key].lastPieceAccessed = (uint)id;
}
IFile file = keyTable[key].storageFile;
int pieceSize = ((keyTable[key].lastSliceId != id) || (keyTable[key].lastSliceSize == 0)) ? (int)Constants.FileSliceMaxLength : (int)keyTable[key].lastSliceSize;
byte[] buffer = new byte[pieceSize];
using (Stream stream = await file.OpenAsync(PCLStorage.FileAccess.Read))
{
stream.Seek((int)(id * Constants.FileSliceMaxLength), SeekOrigin.Begin);
await stream.ReadAsync(buffer, 0, pieceSize);
}
return(buffer);
}
catch (Exception ex)
{
Debug.WriteLine("Exception in GetFileSlice(): " + ex.Message);
return("Invalid Request".Select(c => (byte)c).ToArray());
}
}