/// <summary>
/// This method is invoked to request the filelist from the peer
/// </summary>
/// <returns>The peer file list</returns>
private IDictionary<int, string> GetFileList()
{
AMessageData messageData = new FileListGetMessageData(new Dictionary<int, string>());
Message fileListGetMessage = new Message(new MessageHeader(ServiceTypes.FILE_LIST_GET), messageData);
byte[] buffer = fileListGetMessage.Serialize();
receiverStream.Write(buffer, 0, buffer.Length);
byte[] headerBuffer = new byte[MessageHeader.HEADER_SIZE];
int readBytes = receiverStream.Read(headerBuffer, 0, MessageHeader.HEADER_SIZE);
if (readBytes < MessageHeader.HEADER_SIZE)
{
#warning must test this part!!!!!!!!
receiverStream.Flush();
return new Dictionary<int,string>();
}
ushort contentLength = AMessageData.ToShort(headerBuffer[MessageHeader.HEADER_SIZE - 2], headerBuffer[MessageHeader.HEADER_SIZE-1]);
byte[] rawDataBuffer = new byte[headerBuffer.Length + contentLength];
Array.Copy(headerBuffer, 0, rawDataBuffer, 0, headerBuffer.Length);
readBytes = receiverStream.Read(rawDataBuffer, headerBuffer.Length, contentLength);
if (readBytes != contentLength)
{
#warning must test this part!!!!!!!!
receiverStream.Flush();
return new Dictionary<int, string>();
}
Message receivedMessage = new Message(rawDataBuffer);
if (receivedMessage.Header.ServiceType != ServiceTypes.FILE_LIST_GET)
{
return new Dictionary<int, string>();
}
FileListGetMessageData fileListMessageData = (FileListGetMessageData)Message.GetMessageData(receivedMessage);
return fileListMessageData.FileList;
}
/// <summary>
/// Creates a file list packet and sends it to the peer
/// </summary>
private void SendFileList()
{
AMessageData messageData = new FileListGetMessageData(_fileList);
Message fileListMessage = new Message(new MessageHeader(ServiceTypes.FILE_LIST_GET), messageData);
byte[] buffer = fileListMessage.Serialize();
client.GetStream().Write(buffer, 0, buffer.Length);
}
private void RequestedFileList(IDictionary<int, string> fileList, Socket contactSocket)
{
FileListGetMessageData messageData = new FileListGetMessageData(fileList);
Message newMessage = new Message(new MessageHeader(ServiceTypes.FILE_LIST_GET), messageData);
contactSocket.Send(newMessage.Serialize());
PeerClientData data = _connectedClients[contactSocket];
data.FileId = -1;
_connectedClients.Remove(contactSocket);
data.Socket.Close();
}
