public static RPCVariable CreateError(int faultCode, string faultString)
{
RPCVariable errorStruct = new RPCVariable(RPCVariableType.rpcStruct);
errorStruct.StructValue.Add("faultCode", new RPCVariable(faultCode));
errorStruct.StructValue.Add("faultString", new RPCVariable(faultString));
return(errorStruct);
}
public bool SetValue(RPCVariable value)
{
bool valueChanged = !Compare(value);
if (!valueChanged)
{
return(false);
}
switch (_type)
{
case RPCVariableType.rpcBoolean:
_booleanValue = value.BooleanValue;
break;
case RPCVariableType.rpcArray:
_arrayValue = value.ArrayValue;
break;
case RPCVariableType.rpcStruct:
_structValue = value.StructValue;
break;
case RPCVariableType.rpcInteger32:
_integerValue = value.IntegerValue;
break;
case RPCVariableType.rpcInteger:
_integerValue = value.IntegerValue;
break;
case RPCVariableType.rpcString:
_stringValue = (value.StringValue == null) ? "" : value.StringValue;
break;
case RPCVariableType.rpcBase64:
_stringValue = (value.StringValue == null) ? "" : value.StringValue;
break;
case RPCVariableType.rpcFloat:
_floatValue = value.FloatValue;
break;
}
return(true);
}
public RPCVariable CallMethod(string name, List <RPCVariable> parameters)
{
try
{
lock (_callMethodLock)
{
for (int j = 0; j < _maxTries; j++)
{
for (int i = 0; i < 3; i++)
{
try
{
if (_client == null || !_client.Connected)
{
Connect();
}
if (Ssl && _sslStream == null)
{
Connect();
}
break;
}
catch (HomegearRpcClientSSLException ex)
{
throw ex;
}
catch (HomegearRpcClientException ex)
{
if (i == 2)
{
throw ex;
}
}
if (_stopThread)
{
break;
}
Thread.Sleep(1000);
if (_stopThread)
{
break;
}
}
_responseReceived.Reset();
_rpcResponse = null;
Encoding.RPCHeader header = null;
if (Ssl && _authString != null && _authString.Length > 0)
{
header = new Encoding.RPCHeader();
header.Authorization = Marshal.PtrToStringAuto(Marshal.SecureStringToBSTR(_authString));
}
byte[] requestPacket = _rpcEncoder.EncodeRequest(name, parameters, header).ToArray();
try
{
SendPacket(requestPacket);
}
catch (System.IO.IOException ex)
{
Disconnect();
if (j == _maxTries - 1)
{
throw new HomegearRpcClientException(
"Error calling rpc method " + name + " on server " + _hostname + " and port " +
_port.ToString() + ": " + ex.Message);
}
continue;
}
catch (SocketException ex)
{
Disconnect();
if (j == _maxTries - 1)
{
throw new HomegearRpcClientException(
"Error calling rpc method " + name + " on server " + _hostname + " and port " +
_port.ToString() + ": " + ex.Message);
}
continue;
}
if (_responseReceived.WaitOne(15000) && _rpcResponse != null)
{
break;
}
}
if (_rpcResponse == null)
{
return(RPCVariable.CreateError(-32501, "No response received."));
}
if (_rpcResponse.ErrorStruct && _rpcResponse.StructValue["faultCode"].IntegerValue == -32603)
{
_client.Close(); //Unauthorized
}
return(_rpcResponse);
}
}
catch (Exception ex)
{
throw ex;
}
}
private void ProcessPacket(byte[] packet)
{
if (packet == null || packet.Length < 8)
{
return;
}
if ((packet[3] & 1) == 0) //Request
{
string methodName = "";
List <RPCVariable> parameters = _rpcDecoder.DecodeRequest(packet, ref methodName);
RPCVariable response = new RPCVariable(RPCVariableType.rpcVoid);
if (methodName == "")
{
response = RPCVariable.CreateError(-1,
"Packet is not well formed: " + BitConverter.ToString(packet));
}
else if (methodName == "system.listMethods")
{
response = new RPCVariable(RPCVariableType.rpcArray);
response.ArrayValue.Add(new RPCVariable("system.multicall"));
response.ArrayValue.Add(new RPCVariable("error"));
response.ArrayValue.Add(new RPCVariable("event"));
response.ArrayValue.Add(new RPCVariable("newDevices"));
response.ArrayValue.Add(new RPCVariable("updateDevice"));
response.ArrayValue.Add(new RPCVariable("deleteDevices"));
response.ArrayValue.Add(new RPCVariable("newEvent"));
response.ArrayValue.Add(new RPCVariable("deleteEvent"));
response.ArrayValue.Add(new RPCVariable("updateEvent"));
}
else if (methodName == "system.multicall" && parameters.Any())
{
foreach (RPCVariable method in parameters[0].ArrayValue)
{
if (method.Type != RPCVariableType.rpcStruct || method.StructValue.Count() != 2)
{
continue;
}
if (method.StructValue["methodName"].StringValue != "event")
{
continue;
}
List <RPCVariable> eventParams = method.StructValue["params"].ArrayValue;
if (eventParams.Count() != 5 || eventParams[0].Type != RPCVariableType.rpcString ||
eventParams[1].Type != RPCVariableType.rpcInteger ||
eventParams[2].Type != RPCVariableType.rpcInteger ||
eventParams[3].Type != RPCVariableType.rpcString)
{
continue;
}
RPCEvent?.Invoke(this, eventParams[1].IntegerValue, eventParams[2].IntegerValue, eventParams[3].StringValue, eventParams[4], eventParams[0].StringValue);
}
}
else if (methodName == "error" && parameters.Count() == 3 &&
parameters[1].Type == RPCVariableType.rpcInteger &&
parameters[2].Type == RPCVariableType.rpcString)
{
HomegearError?.Invoke(this, parameters[1].IntegerValue, parameters[2].StringValue);
}
else if (methodName == "newDevices")
{
NewDevices?.Invoke(this);
}
else if (methodName == "deleteDevices")
{
DevicesDeleted?.Invoke(this);
}
else if (methodName == "updateDevice")
{
if (parameters.Count == 4 && parameters[0].Type == RPCVariableType.rpcString &&
parameters[1].Type == RPCVariableType.rpcInteger &&
parameters[2].Type == RPCVariableType.rpcInteger &&
parameters[3].Type == RPCVariableType.rpcInteger)
{
UpdateDevice?.Invoke(this, parameters[1].IntegerValue, parameters[2].IntegerValue,
parameters[3].IntegerValue);
}
}
else if (methodName == "newEvent")
{
if (parameters.Count == 2 && parameters[1].Type == RPCVariableType.rpcStruct)
{
string id = "";
long type = -1;
long peerId = 0;
long channel = -1;
string variable = "";
if (parameters[1].StructValue.ContainsKey("ID"))
{
id = parameters[1].StructValue["ID"].StringValue;
}
if (parameters[1].StructValue.ContainsKey("TYPE"))
{
type = parameters[1].StructValue["TYPE"].IntegerValue;
}
if (parameters[1].StructValue.ContainsKey("PEERID"))
{
peerId = parameters[1].StructValue["PEERID"].IntegerValue;
}
if (parameters[1].StructValue.ContainsKey("PEERCHANNEL"))
{
channel = parameters[1].StructValue["PEERCHANNEL"].IntegerValue;
}
if (parameters[1].StructValue.ContainsKey("VARIABLE"))
{
variable = parameters[1].StructValue["VARIABLE"].StringValue;
}
NewEvent?.Invoke(this, id, type, peerId, channel, variable);
}
}
else if (methodName == "deleteEvent")
{
if (parameters.Count == 6)
{
EventDeleted?.Invoke(this, parameters[1].StringValue, parameters[2].IntegerValue,
parameters[3].IntegerValue, parameters[4].IntegerValue, parameters[5].StringValue);
}
}
else if (methodName == "updateEvent")
{
if (parameters.Count == 6)
{
UpdateEvent?.Invoke(this, parameters[1].StringValue, parameters[2].IntegerValue,
parameters[3].IntegerValue, parameters[4].IntegerValue, parameters[5].StringValue);
}
}
byte[] responsePacket = _rpcEncoder.EncodeResponse(response).ToArray();
SendPacket(responsePacket);
}
else //Response
{
_rpcResponse = _rpcDecoder.DecodeResponse(packet);
_responseReceived.Set();
}
}
public RPCVariable CallMethod(String name, List <RPCVariable> parameters)
{
RPCVariable result = null;
_sendMutex.WaitOne();
try
{
for (int j = 0; j < _maxTries; j++)
{
for (int i = 0; i < 3; i++)
{
try
{
if (_client == null || !_client.Connected)
{
Connect();
}
if (_ssl && _sslStream == null)
{
Connect();
}
break;
}
catch (HomegearRPCClientSSLException ex)
{
throw ex;
}
catch (HomegearRPCClientException ex)
{
if (i == 2)
{
throw ex;
}
}
Thread.Sleep(1000);
}
Encoding.RPCHeader header = null;
if (_ssl && _authString != null && _authString.Length > 0)
{
header = new Encoding.RPCHeader();
header.Authorization = Marshal.PtrToStringAuto(Marshal.SecureStringToBSTR(_authString));
}
byte[] requestPacket = _rpcEncoder.EncodeRequest(name, parameters, header).ToArray();
try
{
Int32 bytesSent = 1024;
Int32 bytesToSend = 0;
for (int i = 0; i < requestPacket.Length; i += bytesSent)
{
bytesToSend = (i + 1024 >= requestPacket.Length) ? requestPacket.Length - i : 1024;
if (_ssl)
{
_sslStream.Write(requestPacket, i, bytesToSend);
_sslStream.Flush();
}
else
{
bytesSent = _client.Client.Send(requestPacket, i, bytesToSend, SocketFlags.None);
}
}
}
catch (System.IO.IOException ex)
{
Disconnect();
if (j == _maxTries - 1)
{
throw new HomegearRPCClientException("Error calling rpc method " + name + " on server " + _hostname + " and port " + _port.ToString() + ": " + ex.Message);
}
continue;
}
catch (SocketException ex)
{
Disconnect();
if (j == _maxTries - 1)
{
throw new HomegearRPCClientException("Error calling rpc method " + name + " on server " + _hostname + " and port " + _port.ToString() + ": " + ex.Message);
}
continue;
}
try
{
byte[] packet = null;
int bytesReceived = 0;
byte[] buffer = new byte[1024];
uint dataSize = 0;
uint packetLength = 0;
do
{
if (_ssl)
{
bytesReceived = _sslStream.Read(buffer, 0, buffer.Length);
}
else
{
bytesReceived = _client.Client.Receive(buffer);
}
if (dataSize == 0)
{
if ((buffer[3] & 1) == 0)
{
throw new HomegearRPCClientException("RPC client received binary request as response from server " + _hostname + " on port " + _port.ToString() + ".");
}
if (bytesReceived < 8)
{
throw new HomegearRPCClientException("RPC client received binary response smaller than 8 bytes from server " + _hostname + " on port " + _port.ToString() + ".");
}
dataSize = (uint)((buffer[4] << 24) + (buffer[5] << 16) + (buffer[6] << 8) + buffer[7]);
if (dataSize == 0)
{
throw new HomegearRPCClientException("RPC client received empty response from server " + _hostname + " on port " + _port.ToString() + ".");
}
if (dataSize > 104857600)
{
throw new HomegearRPCClientException("RPC client received response larger than 100 MiB from server " + _hostname + " on port " + _port.ToString() + ".");
}
packetLength = (uint)bytesReceived - 8;
packet = new byte[dataSize + 8];
Array.Copy(buffer, packet, bytesReceived);
}
else
{
if (packetLength + bytesReceived > dataSize)
{
throw new HomegearRPCClientException("RPC client received response larger than the expected size from server " + _hostname + " on port " + _port.ToString() + ".");
}
Array.Copy(buffer, 0, packet, packetLength + 8, bytesReceived);
packetLength += (uint)bytesReceived;
}
if (packetLength == dataSize)
{
break;
}
} while (bytesReceived != 0);
if (packet != null)
{
result = _rpcDecoder.DecodeResponse(packet);
}
break;
}
catch (System.IO.IOException ex)
{
Disconnect();
if (j == _maxTries - 1)
{
throw new HomegearRPCClientException("IOException thrown calling rpc method " + name + " on server " + _hostname + " and port " + _port.ToString() + ": " + ex.Message);
}
}
catch (SocketException ex)
{
Disconnect();
if (j == _maxTries - 1)
{
throw new HomegearRPCClientException("SocketException thrown on calling rpc method " + name + " on server " + _hostname + " and port " + _port.ToString() + ": " + ex.Message);
}
}
catch (Exception ex)
{
Disconnect();
if (j == _maxTries - 1)
{
throw new HomegearRPCClientException("Exception thrown on calling rpc method " + name + " on server " + _hostname + " and port " + _port.ToString() + ": " + ex.Message);
}
}
}
if (result.ErrorStruct && result.StructValue["faultCode"].IntegerValue == -32603)
{
_client.Close();
}
}
catch (Exception ex)
{
throw ex;
}
finally
{
_sendMutex.ReleaseMutex();
}
if (result == null)
{
result = RPCVariable.CreateError(-32500, "Response was empty.");
}
return(result);
}
public bool Compare(RPCVariable variable)
{
if (Type != variable.Type)
{
return(false);
}
switch (_type)
{
case RPCVariableType.rpcBoolean:
if (_booleanValue != variable.BooleanValue)
{
return(false);
}
break;
case RPCVariableType.rpcArray:
if (_arrayValue.Count != variable.ArrayValue.Count)
{
return(false);
}
else
{
for (int i = 0; i < _arrayValue.Count; i++)
{
if (!_arrayValue[i].Compare(variable.ArrayValue[i]))
{
return(false);
}
}
}
break;
case RPCVariableType.rpcStruct:
if (_structValue.Count != variable.StructValue.Count)
{
return(false);
}
else
{
for (int i = 0; i < _structValue.Count; i++)
{
if (_structValue.Keys.ElementAt(i) != variable.StructValue.Keys.ElementAt(i))
{
return(false);
}
if (!_structValue.Values.ElementAt(i).Compare(variable.StructValue.Values.ElementAt(i)))
{
return(false);
}
}
}
break;
case RPCVariableType.rpcInteger:
if (_integerValue != variable.IntegerValue)
{
return(false);
}
break;
case RPCVariableType.rpcString:
if (_stringValue != variable.StringValue)
{
return(false);
}
break;
case RPCVariableType.rpcBase64:
if (_stringValue != variable.StringValue)
{
return(false);
}
break;
case RPCVariableType.rpcFloat:
if (_floatValue != variable.FloatValue)
{
return(false);
}
break;
}
return(true);
}
private void ProcessPacket(byte[] packet)
{
if (packet == null)
{
return;
}
string methodName = "";
List <RPCVariable> parameters = _rpcDecoder.DecodeRequest(packet, ref methodName);
RPCVariable response = new RPCVariable(RPCVariableType.rpcVoid);
if (methodName == "")
{
response = RPCVariable.CreateError(-1, "Packet is not well formed: " + BitConverter.ToString(packet));
}
else if (methodName == "system.listMethods")
{
response = new RPCVariable(RPCVariableType.rpcArray);
response.ArrayValue.Add(new RPCVariable("system.multicall"));
response.ArrayValue.Add(new RPCVariable("error"));
response.ArrayValue.Add(new RPCVariable("event"));
response.ArrayValue.Add(new RPCVariable("listDevices"));
response.ArrayValue.Add(new RPCVariable("newDevices"));
response.ArrayValue.Add(new RPCVariable("updateDevice"));
response.ArrayValue.Add(new RPCVariable("deleteDevices"));
response.ArrayValue.Add(new RPCVariable("newEvent"));
response.ArrayValue.Add(new RPCVariable("deleteEvent"));
response.ArrayValue.Add(new RPCVariable("updateEvent"));
}
else if (methodName == "system.multicall" && parameters.Count() > 0)
{
foreach (RPCVariable method in parameters[0].ArrayValue)
{
if (method.Type != RPCVariableType.rpcStruct || method.StructValue.Count() != 2)
{
continue;
}
if (method.StructValue["methodName"].StringValue != "event")
{
continue;
}
List <RPCVariable> eventParams = method.StructValue["params"].ArrayValue;
if (eventParams.Count() != 5 || eventParams[0].Type != RPCVariableType.rpcString || eventParams[1].Type != RPCVariableType.rpcInteger || eventParams[2].Type != RPCVariableType.rpcInteger || eventParams[3].Type != RPCVariableType.rpcString)
{
continue;
}
if (RPCEvent != null)
{
RPCEvent(this, eventParams[1].IntegerValue, eventParams[2].IntegerValue, eventParams[3].StringValue, eventParams[4]);
}
}
}
else if (methodName == "error" && parameters.Count() == 3 && parameters[1].Type == RPCVariableType.rpcInteger && parameters[2].Type == RPCVariableType.rpcString)
{
if (HomegearError != null)
{
HomegearError(this, parameters[1].IntegerValue, parameters[2].StringValue);
}
}
else if (methodName == "listDevices")
{
response = new RPCVariable(RPCVariableType.rpcArray);
if (_knownDevices != null)
{
foreach (Int32 peerID in _knownDevices.Keys)
{
RPCVariable device = new RPCVariable(RPCVariableType.rpcStruct);
device.StructValue.Add("ID", new RPCVariable(peerID));
response.ArrayValue.Add(device);
}
}
}
else if (methodName == "newDevices")
{
if (NewDevices != null)
{
NewDevices(this);
}
}
else if (methodName == "deleteDevices")
{
if (DevicesDeleted != null)
{
DevicesDeleted(this);
}
}
else if (methodName == "updateDevice")
{
if (parameters.Count == 4 && parameters[0].Type == RPCVariableType.rpcString && parameters[1].Type == RPCVariableType.rpcInteger && parameters[2].Type == RPCVariableType.rpcInteger && parameters[3].Type == RPCVariableType.rpcInteger)
{
if (UpdateDevice != null)
{
UpdateDevice(this, parameters[1].IntegerValue, parameters[2].IntegerValue, parameters[3].IntegerValue);
}
}
}
else if (methodName == "newEvent")
{
if (parameters.Count == 2 && parameters[1].Type == RPCVariableType.rpcStruct)
{
String id = "";
Int32 type = -1;
Int32 peerID = 0;
Int32 channel = -1;
String variable = "";
if (parameters[1].StructValue.ContainsKey("ID"))
{
id = parameters[1].StructValue["ID"].StringValue;
}
if (parameters[1].StructValue.ContainsKey("TYPE"))
{
type = parameters[1].StructValue["TYPE"].IntegerValue;
}
if (parameters[1].StructValue.ContainsKey("PEERID"))
{
peerID = parameters[1].StructValue["PEERID"].IntegerValue;
}
if (parameters[1].StructValue.ContainsKey("PEERCHANNEL"))
{
channel = parameters[1].StructValue["PEERCHANNEL"].IntegerValue;
}
if (parameters[1].StructValue.ContainsKey("VARIABLE"))
{
variable = parameters[1].StructValue["VARIABLE"].StringValue;
}
if (NewEvent != null)
{
NewEvent(this, id, type, peerID, channel, variable);
}
}
}
else if (methodName == "deleteEvent")
{
if (parameters.Count == 6)
{
if (EventDeleted != null)
{
EventDeleted(this, parameters[1].StringValue, parameters[2].IntegerValue, parameters[3].IntegerValue, parameters[4].IntegerValue, parameters[5].StringValue);
}
}
}
else if (methodName == "updateEvent")
{
if (parameters.Count == 6)
{
if (UpdateEvent != null)
{
UpdateEvent(this, parameters[1].StringValue, parameters[2].IntegerValue, parameters[3].IntegerValue, parameters[4].IntegerValue, parameters[5].StringValue);
}
}
}
byte[] responsePacket = _rpcEncoder.EncodeResponse(response).ToArray();
Int32 bytesSent = 1024;
Int32 bytesToSend = 0;
for (int i = 0; i < responsePacket.Length; i += bytesSent)
{
bytesToSend = (i + 1024 >= responsePacket.Length) ? responsePacket.Length - i : 1024;
if (_ssl)
{
_sslStream.Write(responsePacket, i, bytesToSend);
_sslStream.Flush();
}
else
{
bytesSent = _client.Client.Send(responsePacket, i, bytesToSend, SocketFlags.None);
}
}
}
private void ReadClient()
{
byte[] buffer = new byte[2048];
int bytesReceived = 0;
uint dataSize = 0;
uint headerSize = 0;
uint packetLength = 0;
byte[] packet = null;
while (!_stopServer)
{
try
{
if (_client == null || !_client.Connected)
{
break;
}
if (_ssl)
{
bytesReceived = _sslStream.Read(buffer, 0, buffer.Length);
}
else
{
bytesReceived = _client.Client.Receive(buffer);
}
if (bytesReceived == 0)
{
continue;
}
UInt32 bufferPos = 0;
while (bufferPos == 0 || bufferPos + dataSize + 8 < bytesReceived)
{
if (buffer[bufferPos] == 'B' && buffer[bufferPos + 1] == 'i' && buffer[bufferPos + 2] == 'n')
{
if ((buffer[bufferPos + 3] & 1) == 1)
{
continue; //Response received
}
if (bytesReceived < 8)
{
continue;
}
if ((buffer[bufferPos + 3] & 0x40) == 0x40)
{
headerSize = (uint)((buffer[bufferPos + 4] << 24) + (buffer[bufferPos + 5] << 16) + (buffer[bufferPos + 6] << 8) + buffer[bufferPos + 7]);
if (bytesReceived < bufferPos + headerSize + 12)
{
continue;
}
dataSize = (uint)((buffer[bufferPos + 8 + headerSize] << 24) + (buffer[bufferPos + 9 + headerSize] << 16) + (buffer[bufferPos + 10 + headerSize] << 8) + buffer[bufferPos + 11 + headerSize]) + headerSize + 4;
}
else
{
headerSize = 0;
dataSize = (uint)((buffer[bufferPos + 4] << 24) + (buffer[bufferPos + 5] << 16) + (buffer[bufferPos + 6] << 8) + buffer[bufferPos + 7]);
}
if (dataSize == 0)
{
continue;
}
if (dataSize > 104857600)
{
continue;
}
if (headerSize > 1024)
{
continue;
}
packetLength = (uint)bytesReceived - 8;
if (packetLength > dataSize)
{
packetLength = dataSize;
}
packet = new byte[dataSize + 8];
Array.Copy(buffer, bufferPos, packet, 0, ((dataSize + 8) > bytesReceived) ? bytesReceived : (Int32)dataSize + 8);
if (_authString != null && _authString.Length > 0)
{
Encoding.RPCHeader header = _rpcDecoder.DecodeHeader(packet);
if (header.Authorization != Marshal.PtrToStringAuto(Marshal.SecureStringToBSTR(_authString)))
{
packet = null;
List <byte> responsePacket = _rpcEncoder.EncodeResponse(RPCVariable.CreateError(-32603, "Unauthorized"));
if (_ssl)
{
_sslStream.Write(responsePacket.ToArray());
_sslStream.Flush();
}
else
{
_client.Client.Send(responsePacket.ToArray());
}
continue;
}
}
}
else if (packet != null)
{
if (packetLength + bytesReceived > dataSize)
{
System.Diagnostics.Debug.WriteLine("RPC server received response larger than the expected size from Homegear.");
bytesReceived = (int)(dataSize - packetLength);
}
Array.Copy(buffer, 0, packet, packetLength + 8, bytesReceived);
packetLength += (uint)bytesReceived;
}
if (packet != null && packetLength == dataSize)
{
ProcessPacket(packet);
packet = null;
}
bufferPos = dataSize + 8;
}
}
catch (TimeoutException)
{
continue;
}
catch (SocketException ex)
{
if (ex.SocketErrorCode == SocketError.TimedOut)
{
continue;
}
else
{
System.Diagnostics.Debug.WriteLine(ex.Message);
break;
}
}
catch (IOException ex)
{
if (ex.HResult == -2146232800)
{
continue;
}
else
{
System.Diagnostics.Debug.WriteLine(ex.Message);
break;
}
}
}
}
