internal static async Task RunMethod(ServerBase serverBase, ClientInfo client)
{
MethodCallbackInfo callback = null;
try
{
byte[] bytes = await client.StreamHelper.ReadBlockToEndAsync(client.ClientStream, CompressMode.None, serverBase.ProviderSetting.MaximumReceiveStreamHeaderBlock);
string json = Encoding.UTF8.GetString(bytes);
MethodCallInfo callInfo = ServerSerializationHelper.Deserialize <MethodCallInfo>(json, serverBase);
//MethodsCallHandler.BeginStreamCallAction?.Invoke(client, guid, serviceName, methodName, values);
CallMethodResultInfo <OperationContext> result = await CallMethod(callInfo.ServiceName, callInfo.Guid, callInfo.MethodName, callInfo.Parameters, null, client, null, serverBase, null, null);
callback = result.CallbackInfo;
}
catch (Exception ex)
{
callback = new MethodCallbackInfo
{
IsException = true,
Data = ServerSerializationHelper.SerializeObject(ex)
};
}
finally
{
//MethodsCallHandler.EndStreamCallAction?.Invoke(client, guid, serviceName, methodName, values, jsonResult, exception);
}
await SendCallbackData(callback, client, serverBase);
}
/// <summary>
/// this method call when client want to upload file or stream to your server
/// </summary>
/// <param name="stream">client stream</param>
/// <param name="client">client</param>
private static async Task DownloadStreamFromClient(ClientInfo client, ServerBase serverBase)
{
MethodCallbackInfo callback = null;
string guid = Guid.NewGuid().ToString();
try
{
byte[] bytes = await client.StreamHelper.ReadBlockToEndAsync(client.ClientStream, CompressMode.None, serverBase.ProviderSetting.MaximumReceiveStreamHeaderBlock);
string json = Encoding.UTF8.GetString(bytes);
MethodCallInfo callInfo = ServerSerializationHelper.Deserialize <MethodCallInfo>(json, serverBase);
CallMethodResultInfo <OperationContext> result = await CallMethod(callInfo.ServiceName, callInfo.Guid, callInfo.MethodName,
callInfo.Parameters, null, client, null, serverBase, null, null);
callback = result.CallbackInfo;
}
catch (IOException ex)
{
callback = new MethodCallbackInfo();
callback.IsException = true;
callback.Data = ServerSerializationHelper.SerializeObject(ex);
//return;
}
catch (Exception ex)
{
callback = new MethodCallbackInfo();
callback.IsException = true;
callback.Data = ServerSerializationHelper.SerializeObject(ex);
}
finally
{
}
await SendCallbackData(callback, client, serverBase);
}
//public static void RunOnDispatcher(this ClientInfo client, Action run)
//{
// client.ServerBase.ClientDispatchers[client].Post((state) =>
// {
// run();
// }, null);
//}
public static T SendData <T>(this OperationCalls client, string callerName, params object[] args)
{
var data = SendData(client, callerName, args);
if (data == null || data.ToString() == "")
{
return(default(T));
}
return(ServerSerializationHelper.Deserialize <T>(data.ToString(), client.ServerBase));
}
public static T CallClientCallbackMethod <T>(this OperationCalls client, string methodName, params object[] values)
{
var data = CallClientCallbackMethod(client, methodName, values);
if (data == null || data.ToString() == "")
{
return(default(T));
}
return(ServerSerializationHelper.Deserialize <T>(data.ToString(), client.ServerBase));
}
public override StreamInfo RegisterFileToDownload(NetworkStream stream, CompressMode compressMode, ClientInfo client, bool isWebSocket)
{
var bytes = GoStreamReader.ReadBlockToEnd(stream, compressMode, ProviderSetting.MaximumReceiveDataBlock, isWebSocket);
var json = Encoding.UTF8.GetString(bytes);
MethodCallInfo callInfo = ServerSerializationHelper.Deserialize <MethodCallInfo>(json);
MethodCallbackInfo callback = new MethodCallbackInfo();
callback.Guid = callInfo.Guid;
var serviceType = RegisteredServiceTypes[callInfo.ServiceName];
var sessionId = callInfo.Data.ToString();
var clientInfo = (from x in Services.ToArray() where x.Key.SessionId == sessionId select x.Key).FirstOrDefault();
if (clientInfo == null)
{
throw new Exception("RegisterFile client not found!");
}
var service = FindClientServiceByType(clientInfo, serviceType);
#if (NETSTANDARD1_6 || NETCOREAPP1_1)
var method = serviceType.GetTypeInfo().GetMethod(callInfo.MethodName, RuntimeTypeHelper.GetMethodTypes(serviceType, callInfo).ToArray());
#else
var method = serviceType.GetMethod(callInfo.MethodName, RuntimeTypeHelper.GetMethodTypes(serviceType, callInfo).ToArray());
#endif
List <object> parameters = new List <object>();
int index = 0;
var prms = method.GetParameters();
foreach (var item in callInfo.Parameters)
{
parameters.Add(ServerSerializationHelper.Deserialize(item.Value, prms[index].ParameterType));
index++;
}
if (method.ReturnType != typeof(StreamInfo))
{
throw new Exception("return type for upload must StreamInfo!");
}
else
{
StreamInfo data = null;
data = (StreamInfo)method.Invoke(service, parameters.ToArray());
if (data == null)
{
throw new Exception($"StreamInfo cannot be null");
}
var streamReader = data.Stream;
data.Stream = null;
callback.Data = ServerSerializationHelper.SerializeObject(data, this);
SendCallbackData(callback, client);
data.Stream = streamReader;
return(data);
}
}
internal static void Init()
{
CSCodeInjection.InvokedServerMethodAction = (client, method, parameters) =>
{
SendDataInvoke((OperationCalls)client, method.Name, parameters);
};
CSCodeInjection.InvokedServerMethodFunction = (client, method, parameters) =>
{
var data = SendData((OperationCalls)client, method.Name, parameters);
return(ServerSerializationHelper.Deserialize(data.ToString(), method.ReturnType, ((OperationCalls)client).ServerBase));
};
}
public static async Task StartToReadingClientData(ClientInfo client, ServerBase serverBase)
{
try
{
Console.WriteLine($"WebSocket Client Connected: {client.IPAddress}");
Shared.IO.PipeNetworkStream stream = client.ClientStream;
while (true)
{
byte oneByteOfDataType = await client.StreamHelper.ReadOneByteAsync(stream);
//type of data
DataType dataType = (DataType)oneByteOfDataType;
if (dataType == DataType.PingPong)
{
await client.StreamHelper.WriteToStreamAsync(client.ClientStream, new byte[] { 5 });
continue;
}
//compress mode of data
CompressMode compressMode = (CompressMode)await client.StreamHelper.ReadOneByteAsync(stream);
//a server service method called from client
if (dataType == DataType.CallMethod)
{
string json = "";
//if (client.IsOwinClient)
//{
// json = await stream.ReadLineAsync("#end");
// if (json.EndsWith("#end"))
// json = json.Substring(0, json.Length - 4);
//}
//else
//{
byte[] bytes = await client.StreamHelper.ReadBlockToEndAsync(stream, compressMode, serverBase.ProviderSetting.MaximumReceiveDataBlock);
//if (ClientsSettings.ContainsKey(client))
// bytes = DecryptBytes(bytes, client);
json = Encoding.UTF8.GetString(bytes);
//}
MethodCallInfo callInfo = ServerSerializationHelper.Deserialize <MethodCallInfo>(json, serverBase);
if (callInfo.PartNumber != 0)
{
SegmentManager segmentManager = new SegmentManager();
ISegment result = segmentManager.GenerateAndMixSegments(callInfo);
if (result != null)
{
callInfo = (MethodCallInfo)result;
}
else
{
continue;
}
}
#if (NET35 || NET40)
MethodCallbackInfo callbackResult = CallMethod(callInfo, client, json, serverBase).Result;
SendCallbackData(callbackResult, client, serverBase);
#else
Task <MethodCallbackInfo> callbackResult = CallMethod(callInfo, client, json, serverBase);
SendCallbackData(callbackResult, client, serverBase);
#endif
}
//reponse of client method that server called to client
else if (dataType == DataType.ResponseCallMethod)
{
byte[] bytes = await client.StreamHelper.ReadBlockToEndAsync(stream, compressMode, serverBase.ProviderSetting.MaximumReceiveDataBlock);
//if (ClientsSettings.ContainsKey(client))
// bytes = DecryptBytes(bytes, client);
string json = Encoding.UTF8.GetString(bytes);
MethodCallbackInfo callback = ServerSerializationHelper.Deserialize <MethodCallbackInfo>(json, serverBase);
if (callback == null)
{
serverBase.AutoLogger.LogText($"{client.IPAddress} {client.ClientId} callback is null:" + json);
}
if (callback.PartNumber != 0)
{
SegmentManager segmentManager = new SegmentManager();
ISegment result = segmentManager.GenerateAndMixSegments(callback);
if (result != null)
{
callback = (MethodCallbackInfo)result;
}
else
{
continue;
}
}
if (serverBase.ClientServiceCallMethodsResult.TryGetValue(callback.Guid, out KeyValue <Type, object> resultTask))
{
if (callback.IsException)
{
resultTask.Value.GetType().FindMethod("SetException").Invoke(resultTask.Value, new object[] { new Exception(callback.Data) });
}
else
{
resultTask.Value.GetType().FindMethod("SetResult").Invoke(resultTask.Value, new object[] { ServerSerializationHelper.Deserialize(callback.Data, resultTask.Key, serverBase) });
}
}
}
else if (dataType == DataType.GetServiceDetails)
{
byte[] bytes = await client.StreamHelper.ReadBlockToEndAsync(stream, compressMode, serverBase.ProviderSetting.MaximumReceiveDataBlock);
//if (ClientsSettings.ContainsKey(client))
// bytes = DecryptBytes(bytes, client);
string json = Encoding.UTF8.GetString(bytes);
string hostUrl = ServerSerializationHelper.Deserialize <string>(json, serverBase);
ServerServicesManager serverServicesManager = new ServerServicesManager();
ProviderDetailsInfo detail = serverServicesManager.SendServiceDetail(hostUrl, serverBase);
json = ServerSerializationHelper.SerializeObject(detail, serverBase);
List <byte> resultBytes = new List <byte>
{
(byte)DataType.GetServiceDetails,
(byte)CompressMode.None
};
byte[] jsonBytes = Encoding.UTF8.GetBytes(json);
byte[] dataLen = BitConverter.GetBytes(jsonBytes.Length);
resultBytes.AddRange(dataLen);
resultBytes.AddRange(jsonBytes);
await client.StreamHelper.WriteToStreamAsync(client.ClientStream, resultBytes.ToArray());
}
else if (dataType == DataType.GetMethodParameterDetails)
{
byte[] bytes = await client.StreamHelper.ReadBlockToEndAsync(stream, compressMode, serverBase.ProviderSetting.MaximumReceiveDataBlock);
//if (ClientsSettings.ContainsKey(client))
// bytes = DecryptBytes(bytes, client);
string json = Encoding.UTF8.GetString(bytes);
MethodParameterDetails detail = ServerSerializationHelper.Deserialize <MethodParameterDetails>(json, serverBase);
if (!serverBase.RegisteredServiceTypes.TryGetValue(detail.ServiceName, out Type serviceType))
{
throw new Exception($"{client.IPAddress} {client.ClientId} Service {detail.ServiceName} not found");
}
if (serviceType == null)
{
throw new Exception($"{client.IPAddress} {client.ClientId} serviceType {detail.ServiceName} not found");
}
ServerServicesManager serverServicesManager = new ServerServicesManager();
json = serverServicesManager.SendMethodParameterDetail(serviceType, detail, serverBase);
List <byte> resultBytes = new List <byte>
{
(byte)DataType.GetMethodParameterDetails,
(byte)CompressMode.None
};
byte[] jsonBytes = Encoding.UTF8.GetBytes(json);
byte[] dataLen = BitConverter.GetBytes(jsonBytes.Length);
resultBytes.AddRange(dataLen);
resultBytes.AddRange(jsonBytes);
await client.StreamHelper.WriteToStreamAsync(client.ClientStream, resultBytes.ToArray());
}
else if (dataType == DataType.GetClientId)
{
byte[] bytes = Encoding.UTF8.GetBytes(client.ClientId);
List <byte> result = new List <byte>();
result.Add((byte)DataType.GetClientId);
result.Add((byte)CompressMode.None);
result.AddRange(BitConverter.GetBytes(bytes.Length));
result.AddRange(bytes);
//if (ClientsSettings.ContainsKey(client))
// bytes = EncryptBytes(bytes, client);
if (result.Count > serverBase.ProviderSetting.MaximumSendDataBlock)
{
throw new Exception($"{client.IPAddress} {client.ClientId} GetClientId data length exceeds MaximumSendDataBlock");
}
await client.StreamHelper.WriteToStreamAsync(client.ClientStream, result.ToArray());
}
else
{
//throw new Exception($"Correct DataType Data {dataType}");
serverBase.AutoLogger.LogText($"Correct DataType Data {oneByteOfDataType} {client.ClientId} {client.IPAddress}");
break;
}
}
serverBase.DisposeClient(client, null, "StartToReadingClientData while break");
}
catch (Exception ex)
{
serverBase.AutoLogger.LogError(ex, $"{client.IPAddress} {client.ClientId} ServerBase SignalGoDuplexServiceProvider StartToReadingClientData");
serverBase.DisposeClient(client, null, "SignalGoDuplexServiceProvider StartToReadingClientData exception");
}
}
/// <summary>
/// this method calll when client want to download file or stream from your server
/// </summary>
/// <param name="stream">client stream</param>
/// <param name="client">client</param>
private static async Task UploadStreamToClient(ClientInfo client, ServerBase serverBase)
{
MethodCallbackInfo callback = null;
IStreamInfo streamInfo = null;
PipeNetworkStream userStream = null;
PipeNetworkStream stream = client.ClientStream;
bool isCallbackSended = false;
try
{
byte[] bytes = await client.StreamHelper.ReadBlockToEndAsync(client.ClientStream, CompressMode.None, serverBase.ProviderSetting.MaximumReceiveStreamHeaderBlock);
string json = Encoding.UTF8.GetString(bytes);
MethodCallInfo callInfo = ServerSerializationHelper.Deserialize <MethodCallInfo>(json, serverBase);
CallMethodResultInfo <OperationContext> result = await CallMethod(callInfo.ServiceName, callInfo.Guid, callInfo.MethodName,
callInfo.Parameters, null, client, null, serverBase, null, null);
callback = result.CallbackInfo;
streamInfo = result.StreamInfo;
userStream = streamInfo.Stream;
long len = streamInfo.Length.GetValueOrDefault();
await SendCallbackData(callback, client, serverBase);
isCallbackSended = true;
long writeLen = 0;
while (writeLen < len)
{
bytes = new byte[1024 * 100];
int readCount = await userStream.ReadAsync(bytes, bytes.Length);
byte[] sendBytes = bytes.Take(readCount).ToArray();
await stream.WriteAsync(sendBytes, 0, sendBytes.Length);
writeLen += readCount;
}
userStream.Dispose();
Console.WriteLine("user stream finished");
stream.Dispose();
}
catch (Exception ex)
{
if (streamInfo != null)
{
streamInfo.Dispose();
}
stream.Dispose();
if (userStream != null)
{
userStream.Dispose();
Console.WriteLine("user stream disposed");
}
if (!isCallbackSended && !client.ClientStream.IsClosed)
{
if (callback == null)
{
callback = new MethodCallbackInfo();
}
callback.IsException = true;
callback.Data = ServerSerializationHelper.SerializeObject(ex);
await SendCallbackData(callback, client, serverBase);
}
}
finally
{
//MethodsCallHandler.EndStreamCallAction?.Invoke(client, guid, serviceName, methodName, values, jsonResult, exception);
}
}
