public HttpCode Execute()
{
Clear();
// Connect
NetworkChannel channel = null;
try
{
channel = new NetworkChannel(Connection);
// Request
JsonPingRequestMessage jsonRequestMessage = new JsonPingRequestMessage();
JsonPacket jsonRequest = new JsonPacket(jsonRequestMessage);
HttpRequest httpRequest = new HttpRequest(Session.Id)
{
Data = Session.Encrypt(jsonRequest)
};
// Response
HttpResponse httpResponse;
if (Owner)
{
channel.Send(httpRequest);
channel.Receive(out httpResponse);
}
else
{
lock (Socket)
{
channel.Send(httpRequest);
channel.Receive(out httpResponse);
}
}
Code = httpResponse.Code;
if (httpResponse.Ok)
{
JsonPacket jsonResponse = JsonPacket.Parse(Session.Decrypt(httpResponse.Data));
#if DEBUG
Log.Add(httpRequest, httpResponse, jsonRequest, jsonResponse);
#endif
}
}
finally
{
if (channel != null)
{
channel.Shutdown();
}
}
return(Code);
}
public List <BrowseComponent> Execute()
{
Clear();
NetworkChannel channel = null;
List <BrowseComponent> list = new List <BrowseComponent>();
try
{
// Connect
channel = new NetworkChannel(Connection);
// Request
JsonGroupRequestMessage jsonRequestMessage = new JsonGroupRequestMessage();
JsonPacket jsonRequest = new JsonPacket(jsonRequestMessage);
HttpRequest httpRequest = new HttpRequest(Session.Id)
{
Data = Session.Encrypt(jsonRequest)
};
channel.Send(httpRequest);
// Response
HttpResponse httpResponse;
channel.Receive(out httpResponse);
Code = httpResponse.Code;
if (httpResponse.Ok)
{
JsonPacket jsonResponse = JsonPacket.Parse(Session.Decrypt(httpResponse.Data));
JsonGroupResponseMessage jsonResponseMessage = JsonGroupResponseMessage.Parse(jsonResponse.Message);
if (jsonResponseMessage != null)
{
// Clients
foreach (JsonClient jsonClient in jsonResponseMessage.Clients)
{
BrowseComponent browse = new BrowseComponent(jsonClient.Name)
{
ClientId = jsonClient.Id, Owner = Entity
};
list.Add(browse);
}
}
#if DEBUG
Log.Add(httpRequest, httpResponse, jsonRequest, jsonResponse);
#endif
}
}
finally
{
if (channel != null)
{
channel.Shutdown();
}
}
return(list);
}
public HttpCode Execute()
{
Clear();
// Connect
NetworkChannel channel = null;
try
{
channel = new NetworkChannel(Connection);
// Request
JsonEntity jsonEntity = (JsonEntity)Entity;
JsonClient jsonClient = (JsonClient)Client;
JsonGroup jsonGroup = (JsonGroup)Group;
JsonJoinRequestMessage jsonRequestMessage = new JsonJoinRequestMessage()
{
Entity = jsonEntity, Client = jsonClient, Group = jsonGroup
};
JsonPacket jsonRequest = new JsonPacket(jsonRequestMessage);
HttpRequest httpRequest = new HttpRequest(Session.Id)
{
Data = Session.Encrypt(jsonRequest)
};
channel.Send(httpRequest);
// Response
HttpResponse httpResponse;
channel.Receive(out httpResponse);
Code = httpResponse.Code;
if (httpResponse.Ok)
{
JsonPacket jsonResponse = JsonPacket.Parse(Session.Decrypt(httpResponse.Data));
JsonJoinResponseMessage jsonResponseMessage = JsonJoinResponseMessage.Parse(jsonResponse.Message);
// Data
Server.Entities = jsonResponseMessage.Entities;
Server.Sessions = jsonResponseMessage.Sessions;
Server.Clients = jsonResponseMessage.Clients;
Server.Groups = jsonResponseMessage.Groups;
#if DEBUG
Log.Add(httpRequest, httpResponse, jsonRequest, jsonResponse);
#endif
}
}
finally
{
if (channel != null)
{
channel.Shutdown();
}
}
return(Code);
}
private void ExecuteThread()
{
NetworkChannel channel = null;
try
{
// Connect
channel = new NetworkChannel(Connection);
// Request
JsonSearchRequestMessage jsonRequestMessage = new JsonSearchRequestMessage();
JsonSearch jsonSearch = new JsonSearch()
{
Keyword = Keyword, Filter = Filter
};
JsonSearchRequestData jsonRequestData = new JsonSearchRequestData()
{
Search = jsonSearch
};
JsonPacket jsonRequest = new JsonPacket(jsonRequestMessage, Group.Encrypt(jsonRequestData));
HttpRequest httpRequest = new HttpRequest(Session.Id)
{
Data = Session.Encrypt(jsonRequest)
};
channel.Send(httpRequest);
// Response
HttpResponse httpResponse;
channel.Receive(out httpResponse);
Code = httpResponse.Code;
if (httpResponse.Ok)
{
JsonPacket jsonResponse = JsonPacket.Parse(Session.Decrypt(httpResponse.Data));
JsonSearchResponseMessage jsonResponseMessage = JsonSearchResponseMessage.Parse(jsonResponse.Message);
Debug.Assert(!string.IsNullOrEmpty(jsonResponseMessage.Id));
// Data
SearchList.Id = jsonResponseMessage.Id;
#if DEBUG
Log.Add(httpRequest, httpResponse, jsonRequest, jsonResponse);
#endif
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
if (channel != null)
{
channel.Shutdown();
}
}
}
public HttpCode Execute(string jsonId, FileComponent file, string clientId = null)
{
Clear();
// Connect
NetworkChannel channel = new NetworkChannel(Connection);
// Request
JsonChunk jsonChunk = new JsonChunk()
{
Size = file.Size
};
JsonClient jsonClient = (clientId != null) ? new JsonClient(clientId) : null;
JsonDownloadRequestMessage jsonRequestMessage = new JsonDownloadRequestMessage(jsonId)
{
Chunk = jsonChunk, Client = jsonClient
};
JsonFile jsonFile = (JsonFile)file;
JsonDownloadRequestData jsonRequestData = new JsonDownloadRequestData()
{
File = jsonFile
};
JsonPacket jsonRequest = new JsonPacket(jsonRequestMessage, Group.Encrypt(jsonRequestData));
HttpRequest httpRequest = new HttpRequest(Session.Id)
{
Data = Session.Encrypt(jsonRequest)
};
channel.Send(httpRequest);
// Response
HttpResponse httpResponse;
channel.Receive(out httpResponse);
Code = httpResponse.Code;
if (httpResponse.Ok)
{
JsonPacket jsonResponse = JsonPacket.Parse(Session.Decrypt(httpResponse.Data));
JsonDownloadResponseMessage jsonResponseMessage = JsonDownloadResponseMessage.Parse(jsonResponse.Message);
Chunk = jsonResponseMessage.Chunk;
Id = jsonResponseMessage.Id;
JsonDownloadResponseData jsonResponseData = JsonDownloadResponseData.Parse(Group.Decrypt(jsonResponse.Data));
if (jsonResponseData != null)
{
Data = jsonResponseData.Data;
}
#if DEBUG
jsonResponse.Data = null;
Log.Add(httpRequest, httpResponse, jsonRequest, jsonResponse);
#endif
}
return(httpResponse.Code);
}
private void ExecuteThread()
{
Clear();
// Connect
NetworkChannel channel = null;
try
{
channel = new NetworkChannel(Connection);
// Request
JsonInfoRequestMessage jsonRequestMessage = new JsonInfoRequestMessage();
JsonPacket jsonRequest = new JsonPacket(jsonRequestMessage);
HttpRequest httpRequest = new HttpRequest(Session.Id)
{
Data = Session.Encrypt(jsonRequest)
};
channel.Send(httpRequest);
// Response
HttpResponse httpResponse;
channel.Receive(out httpResponse);
Code = httpResponse.Code;
if (httpResponse.Ok)
{
JsonPacket jsonResponse = JsonPacket.Parse(Session.Decrypt(httpResponse.Data));
JsonInfoResponseMessage jsonResponseMessage = JsonInfoResponseMessage.Parse(jsonResponse.Message);
// Data
Server.Entities = jsonResponseMessage.Entities;
Server.Sessions = jsonResponseMessage.Sessions;
Server.Clients = jsonResponseMessage.Clients;
Server.Groups = jsonResponseMessage.Groups;
#if DEBUG
Log.Add(httpRequest, httpResponse, jsonRequest, jsonResponse);
#endif
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
Machine.Status = DemonStatus.Warning;
}
finally
{
if (channel != null)
{
channel.Shutdown();
}
}
}
public JsonChunk Execute(string jsonId, byte[] jsonData, JsonChunk jsonChunk)
{
Clear();
// Connect
NetworkChannel channel = new NetworkChannel(Connection);
// Request
JsonUploadRequestMessage jsonRequestMessage = new JsonUploadRequestMessage(jsonId)
{
Chunk = jsonChunk
};
JsonUploadRequestData jsonRequestData = new JsonUploadRequestData()
{
Data = jsonData
};
JsonPacket jsonRequest = new JsonPacket(jsonRequestMessage, Group.Encrypt(jsonRequestData));
HttpRequest httpRequest = new HttpRequest(Session.Id)
{
Data = Session.Encrypt(jsonRequest)
};
channel.Send(httpRequest);
// Response
HttpResponse httpResponse;
channel.Receive(out httpResponse);
Code = httpResponse.Code;
if (httpResponse.Ok)
{
JsonPacket jsonResponse = JsonPacket.Parse(Session.Decrypt(httpResponse.Data));
JsonUploadResponseMessage jsonResponseMessage = JsonUploadResponseMessage.Parse(jsonResponse.Message);
jsonChunk = jsonResponseMessage.Chunk;
#if DEBUG
jsonResponse.Data = null;
Log.Add(httpRequest, httpResponse, jsonRequest, jsonResponse);
#endif
if (jsonResponseMessage.Delay > 0)
{
Thread.Sleep(TimeSpan.FromMilliseconds(jsonResponseMessage.Delay));
}
}
return(jsonChunk);
}
private void ExecuteThread()
{
// Connect
NetworkChannel channel = null;
try
{
channel = new NetworkChannel(Connection);
// Request
JsonPingRequestMessage jsonRequestMessage = new JsonPingRequestMessage();
JsonPacket jsonRequest = new JsonPacket(jsonRequestMessage);
HttpRequest httpRequest = new HttpRequest(Session.Id)
{
Data = Session.Encrypt(jsonRequest)
};
channel.Send(httpRequest);
// Response
HttpResponse httpResponse;
channel.Receive(out httpResponse);
Code = httpResponse.Code;
if (httpResponse.Ok)
{
JsonPacket jsonResponse = JsonPacket.Parse(Session.Decrypt(httpResponse.Data));
#if DEBUG
Log.Add(httpRequest, httpResponse, jsonRequest, jsonResponse);
#endif
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
if (Owner && Machine != null)
{
Machine.Restart();
}
}
finally
{
if (channel != null)
{
channel.Shutdown();
}
}
}
public HttpCode Execute()
{
Clear();
// Connect
NetworkChannel channel = null;
try
{
channel = new NetworkChannel(Connection);
// Request
HttpRequest httpRequest = new HttpRequest()
{
Data = SecurityUtil.Token
};
channel.Send(httpRequest);
// Response
HttpResponse httpResponse;
channel.Receive(out httpResponse);
Code = httpResponse.Code;
if (httpResponse.Ok)
{
// Data
Session.Id = httpResponse.Session;
Session.Key = Key.Parse(httpResponse.Data);
#if DEBUG
Log.Add(httpRequest, httpResponse);
#endif
}
}
finally
{
if (channel != null)
{
channel.Shutdown();
}
}
return(Code);
}
public string Execute(string jsonData)
{
Clear();
// Connect
NetworkChannel channel = new NetworkChannel(Connection);
// Request
JsonSearchRequestMessage jsonRequestMessage = new JsonSearchRequestMessage();
JsonPacket jsonRequest = new JsonPacket(jsonRequestMessage, jsonData);
HttpRequest httpRequest = new HttpRequest()
{
Data = Session.Encrypt(jsonRequest)
};
// Response
HttpResponse httpResponse;
// NOTE: We need to lock this send/receive message pairs
lock (Socket)
{
channel.Send(httpRequest);
channel.Receive(out httpResponse);
}
Code = httpResponse.Code;
if (httpResponse.Ok)
{
JsonPacket jsonResponse = JsonPacket.Parse(Session.Decrypt(httpResponse.Data));
#if DEBUG
Log.Add(httpRequest, httpResponse, jsonRequest, jsonResponse);
#endif
// Data
return(jsonResponse.Data);
}
return(null);
}
public HttpCode Execute(string jsonId, string jsonData, JsonChunk jsonChunk)
{
Clear();
// Connect
NetworkChannel channel = new NetworkChannel(Connection);
// Request
JsonDownloadRequestMessage jsonRequestMessage = new JsonDownloadRequestMessage(jsonId)
{
Chunk = jsonChunk
};
JsonPacket jsonRequest = new JsonPacket(jsonRequestMessage, jsonData);
HttpRequest httpRequest = new HttpRequest()
{
Data = Session.Encrypt(jsonRequest)
};
// Response
HttpResponse httpResponse;
lock (Socket)
{
channel.Send(httpRequest);
channel.Receive(out httpResponse);
}
Code = httpResponse.Code;
if (httpResponse.Ok)
{
JsonPacket jsonResponse = JsonPacket.Parse(Session.Decrypt(httpResponse.Data));
#if DEBUG
Log.Add(httpRequest, httpResponse, jsonRequest, jsonResponse);
#endif
}
return(Code);
}
private void ListenState()
{
NetworkChannel channel = null;
try
{
// Connect
if (!Connected)
{
State = DemonState.Restart;
Status = DemonStatus.Info;
return;
}
// NOTE: No need to close the channel
channel = new NetworkChannel(Connection);
Status = DemonStatus.Success;
// Request
HttpRequest httpRequest;
channel.Receive(out httpRequest);
if (httpRequest == null)
{
Status = DemonStatus.Warning;
return;
}
// TODO: Version check
//
// Message
SessionComponent session = Owner.Get <SessionComponent>();
string decrypted = session.Decrypt(httpRequest.Data);
JsonPacket jsonRequest = JsonPacket.Parse(decrypted);
JsonMessage jsonRequestMessage = JsonMessage.Parse(jsonRequest.Message);
JsonType jsonType = jsonRequestMessage.Type;
switch (jsonType)
{
case JsonType.Ping:
{
PingResponseCommand command = new PingResponseCommand(Owner, Connection);
command.Execute(httpRequest, jsonRequest);
break;
}
case JsonType.Search:
{
JsonAction action = jsonRequestMessage.Action;
switch (action)
{
case JsonAction.Request:
{
SearchRequestCommand command = new SearchRequestCommand(Owner, Connection);
command.Execute(httpRequest, jsonRequest);
break;
}
case JsonAction.Response:
{
SearchResponseCommand command = new SearchResponseCommand(Owner, Connection);
List <FileComponent> list = command.Execute(httpRequest, jsonRequest);
OnListAdded(list);
break;
}
default:
{
channel.SendBadRequest();
break;
}
}
break;
}
case JsonType.Browse:
{
BrowseResponseCommand command = new BrowseResponseCommand(Owner, Connection);
command.Execute(httpRequest, jsonRequest);
break;
}
case JsonType.Download:
{
// TODO
//
DownloadResponseCommand command = new DownloadResponseCommand(Owner, Connection); // { Handler = UploadEvent };
command.Execute(httpRequest, jsonRequest);
break;
}
default:
{
channel.SendBadRequest();
State = DemonState.Restart;
Status = DemonStatus.Info;
return;
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
Status = DemonStatus.Error;
if (channel != null)
{
try
{
channel.SendInternalServerError();
}
catch (Exception) { }
}
}
}
private void ProcessState(object obj)
{
Socket socket = (Socket)obj;
NetworkChannel channel = null;
JsonAction action = JsonAction.None;
JsonType jsonType = JsonType.None;
try
{
do
{
// Connect
channel = new NetworkChannel(socket);
// Receive
HttpRequest httpRequest;
channel.Receive(out httpRequest);
if (httpRequest == null)
{
channel.SendBadRequest();
return;
}
// Data
Status = DemonStatus.Success;
// Handshake
if (httpRequest.Session == null)
{
ServerStatusComponent status = Owner.Get <ServerStatusComponent>();
HandshakeResponseCommand command = new HandshakeResponseCommand(Owner, socket)
{
Listener = status.Update
};
command.Execute(httpRequest);
break;
}
// Session
SessionMapComponent sessions = Owner.Get <SessionMapComponent>();
Entity entity = sessions.Get(httpRequest.Session);
if (entity == null)
{
channel.SendUnauthorized();
break;
}
// TODO: Version check
//
// Message
SessionComponent session = entity.Get <SessionComponent>();
string decrypted = session.Decrypt(httpRequest.Data);
JsonPacket jsonRequest = JsonPacket.Parse(decrypted);
JsonMessage jsonRequestMessage = JsonMessage.Parse(jsonRequest.Message);
jsonType = jsonRequestMessage.Type;
switch (jsonType)
{
case JsonType.Handshake:
{
HandshakeResponseCommand command = new HandshakeResponseCommand(Owner, socket);
command.Execute(httpRequest, jsonRequest, session);
break;
}
case JsonType.Ping:
{
PingResponseCommand command = new PingResponseCommand(Owner, socket);
command.Execute(httpRequest, jsonRequest, session);
break;
}
case JsonType.Info:
{
InfoResponseCommand command = new InfoResponseCommand(Owner, socket);
command.Execute(httpRequest, jsonRequest, session);
break;
}
case JsonType.Join:
{
JoinResponseCommand command = new JoinResponseCommand(Owner, socket);
command.Execute(httpRequest, jsonRequest, session);
break;
}
case JsonType.Tunnel:
{
TunnelResponseCommand command = new TunnelResponseCommand(Owner, socket);
command.Execute(httpRequest, jsonRequest, session);
break;
}
case JsonType.Search:
{
SearchResponseCommand command = new SearchResponseCommand(Owner, socket);
command.Execute(httpRequest, jsonRequest, session);
break;
}
case JsonType.Group:
{
GroupResponseCommand command = new GroupResponseCommand(Owner, socket);
command.Execute(httpRequest, jsonRequest, session);
break;
}
case JsonType.Browse:
{
BrowseResponseCommand command = new BrowseResponseCommand(Owner, socket);
command.Execute(httpRequest, jsonRequest, session);
break;
}
case JsonType.Download:
{
// TODO: Add max transfer check!
//
DownloadResponseCommand command = new DownloadResponseCommand(Owner, socket);
action = command.Execute(httpRequest, jsonRequest, session);
break;
}
case JsonType.Upload:
{
UploadResponseCommand command = new UploadResponseCommand(Owner, socket);
action = command.Execute(httpRequest, jsonRequest, session);
break;
}
case JsonType.Quit:
{
QuitResponseCommand command = new QuitResponseCommand(Owner, socket);
command.Execute(httpRequest, jsonRequest, session);
break;
}
default:
{
channel.SendBadRequest();
return;
}
}
}while (action != JsonAction.None);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
Status = DemonStatus.Error;
channel.SendInternalServerError();
}
finally
{
if (channel != null)
{
channel.Shutdown();
}
if (jsonType != JsonType.Tunnel)
{
socket.Shutdown(SocketShutdown.Both);
socket.Close();
}
}
}
public List <BrowseComponent> Execute(string clientId, string fileId)
{
Clear();
NetworkChannel channel = null;
try
{
// Connect
channel = new NetworkChannel(Connection);
// Request
JsonClient jsonClient = new JsonClient(clientId);
JsonBrowseRequestMessage jsonRequestMessage = new JsonBrowseRequestMessage()
{
Client = jsonClient
};
JsonFile jsonFolder = !string.IsNullOrEmpty(fileId) ? new JsonFile(fileId) : null;
JsonBrowseRequestData jsonRequestData = new JsonBrowseRequestData()
{
Folder = jsonFolder
};
JsonPacket jsonRequest = new JsonPacket(jsonRequestMessage, Group.Encrypt(jsonRequestData));
HttpRequest httpRequest = new HttpRequest(Session.Id)
{
Data = Session.Encrypt(jsonRequest)
};
channel.Send(httpRequest);
// Response
HttpResponse httpResponse;
channel.Receive(out httpResponse);
Code = httpResponse.Code;
if (httpResponse.Ok)
{
JsonPacket jsonResponse = JsonPacket.Parse(Session.Decrypt(httpResponse.Data));
JsonBrowseResponseMessage jsonResponseMessage = JsonBrowseResponseMessage.Parse(jsonResponse.Message);
Debug.Assert(jsonResponseMessage != null);
JsonBrowseResponseData jsonResponseData = JsonBrowseResponseData.Parse(Group.Decrypt(jsonResponse.Data));
Debug.Assert(jsonResponseData != null);
// Data
List <BrowseComponent> list = new List <BrowseComponent>();
// Folders
if (jsonResponseData.Folders != null)
{
foreach (JsonFile json in jsonResponseData.Folders)
{
BrowseComponent comp = new BrowseComponent(json.Id, json.Name)
{
ClientId = jsonClient.Id, Owner = Entity
};
list.Add(comp);
}
}
// Files
if (jsonResponseData.Files != null)
{
foreach (JsonFile json in jsonResponseData.Files)
{
BrowseComponent comp = new BrowseComponent(json.Id, json.Name, json.Size)
{
ClientId = jsonClient.Id, Owner = Entity
};
list.Add(comp);
}
}
#if DEBUG
Log.Add(httpRequest, httpResponse, jsonRequest, jsonResponse);
#endif
return(list);
}
}
finally
{
if (channel != null)
{
channel.Shutdown();
}
}
return(null);
}
private void Listen()
{
NetworkChannel channel = null;
try
{
// Connect
if (!Connected)
{
Data.Status = DemonStatus.Info;
State = DemonState.Restart;
return;
}
// NOTE: No need to close the channel
channel = new NetworkChannel(Connection);
Data.Status = DemonStatus.Success;
// Response
HttpRequest httpRequest;
channel.Receive(out httpRequest);
if (httpRequest == null)
{
return;
}
string decrypted = Data.Session.Decrypt(httpRequest.Data);
JsonPacket jsonRequest = JsonPacket.Parse(decrypted);
if (jsonRequest == null)
{
return;
}
JsonMessage jsonRequestMessage = JsonMessage.Parse(jsonRequest.Message);
switch (jsonRequestMessage.Type)
{
case JsonType.Ping:
{
//ClientPingCommand command = new ClientPingCommand(Connection, Data);
//command.SetLogHandlers(RequestHandler, ResponseHandler, CommandHandler);
//command.Execute(httpRequest, jsonRequest);
break;
}
case JsonType.Search:
{
JsonAction action = jsonRequestMessage.Action;
switch (action)
{
case JsonAction.Request:
{
//ClientSearchCommand command = new ClientSearchCommand(Connection, Data);
//command.SetLogHandlers(RequestHandler, ResponseHandler, CommandHandler);
//command.Execute(httpRequest, jsonRequest);
break;
}
case JsonAction.Response:
{
//ClientSearchCommand2 command = new ClientSearchCommand2(Connection, Data) { SearchHandler = SearchEvent };
//command.SetLogHandlers(RequestHandler, ResponseHandler, CommandHandler);
//command.Execute(httpRequest, jsonRequest);
break;
}
default:
{
channel.SendBadRequest();
break;
}
}
break;
}
case JsonType.Browse:
{
//ClientBrowseCommand command = new ClientBrowseCommand(Connection, Data);
//command.SetLogHandlers(RequestHandler, ResponseHandler, CommandHandler);
//command.Execute(httpRequest, jsonRequest);
break;
}
case JsonType.Download:
{
//ClientDownloadCommand command = new ClientDownloadCommand(Connection, Data) { Handler = UploadEvent };
//command.SetLogHandlers(RequestHandler, ResponseHandler, CommandHandler);
//command.Execute(httpRequest, jsonRequest);
break;
}
default:
{
channel.SendBadRequest();
Data.Status = DemonStatus.Info;
State = DemonState.Restart;
return;
}
}
Data.Status = DemonStatus.Success;
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
Data.Status = DemonStatus.Info;
State = DemonState.Restart;
if (channel != null)
{
try
{
channel.SendInternalServerError();
}
catch (Exception) { }
}
}
}