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Merge branch 'development' into hotfix/ssh-logging

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This commit is contained in:
Andrew Welker
2022-02-09 09:49:27 -07:00
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parent 2b8154b729 784b3a7756
commit b64aa97a3f
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Pepperdash Core/Pepperdash Core/Comm/GenericSecureTcpIpClient.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using Crestron.SimplSharp;
using Crestron.SimplSharp.CrestronSockets;
namespace PepperDash.Core
{
/// <summary>
/// A class to handle secure TCP/IP communications with a server
/// </summary>
public class GenericSecureTcpIpClient : Device, ISocketStatusWithStreamDebugging, IAutoReconnect
{
private const string SplusKey = "Uninitialized Secure Tcp _client";
/// <summary>
/// Stream debugging
/// </summary>
public CommunicationStreamDebugging StreamDebugging { get; private set; }
/// <summary>
/// Fires when data is received from the server and returns it as a Byte array
/// </summary>
public event EventHandler<GenericCommMethodReceiveBytesArgs> BytesReceived;
/// <summary>
/// Fires when data is received from the server and returns it as text
/// </summary>
public event EventHandler<GenericCommMethodReceiveTextArgs> TextReceived;
#region GenericSecureTcpIpClient Events & Delegates
/// <summary>
///
/// </summary>
//public event GenericSocketStatusChangeEventDelegate SocketStatusChange;
public event EventHandler<GenericSocketStatusChageEventArgs> ConnectionChange;
/// <summary>
/// Auto reconnect evant handler
/// </summary>
public event EventHandler AutoReconnectTriggered;
/// <summary>
/// Event for Receiving text. Once subscribed to this event the receive callback will start a thread that dequeues the messages and invokes the event on a new thread.
/// It is not recommended to use both the TextReceived event and the TextReceivedQueueInvoke event.
/// </summary>
public event EventHandler<GenericTcpServerCommMethodReceiveTextArgs> TextReceivedQueueInvoke;
/// <summary>
/// For a client with a pre shared key, this will fire after the communication is established and the key exchange is complete. If you require
/// a key and subscribe to the socket change event and try to send data on a connection the data sent will interfere with the key exchange and disconnect.
/// </summary>
public event EventHandler<GenericTcpServerClientReadyForcommunicationsEventArgs> ClientReadyForCommunications;
#endregion
#region GenricTcpIpClient properties
private string _hostname;
/// <summary>
/// Address of server
/// </summary>
public string Hostname
{
get { return _hostname; }
set
{
_hostname = value;
if (_client != null)
{
_client.AddressClientConnectedTo = _hostname;
}
}
}
/// <summary>
/// Port on server
/// </summary>
public int Port { get; set; }
/// <summary>
/// S+ helper
/// </summary>
public ushort UPort
{
get { return Convert.ToUInt16(Port); }
set { Port = Convert.ToInt32(value); }
}
/// <summary>
/// Defaults to 2000
/// </summary>
public int BufferSize { get; set; }
/// <summary>
/// Internal secure client
/// </summary>
private SecureTCPClient _client;
/// <summary>
/// Bool showing if socket is connected
/// </summary>
public bool IsConnected
{
get { return _client != null && _client.ClientStatus == SocketStatus.SOCKET_STATUS_CONNECTED; }
}
/// <summary>
/// S+ helper for IsConnected
/// </summary>
public ushort UIsConnected
{
get { return (ushort)(IsConnected ? 1 : 0); }
}
/// <summary>
/// _client socket status Read only
/// </summary>
public SocketStatus ClientStatus
{
get
{
return _client == null ? SocketStatus.SOCKET_STATUS_NO_CONNECT : _client.ClientStatus;
}
}
/// <summary>
/// Contains the familiar Simpl analog status values. This drives the ConnectionChange event
/// and IsConnected would be true when this == 2.
/// </summary>
public ushort UStatus
{
get { return (ushort)ClientStatus; }
}
/// <summary>
/// Status text shows the message associated with socket status
/// </summary>
public string ClientStatusText { get { return ClientStatus.ToString(); } }
/// <summary>
/// Connection failure reason
/// </summary>
public string ConnectionFailure { get { return ClientStatus.ToString(); } }
/// <summary>
/// bool to track if auto reconnect should be set on the socket
/// </summary>
public bool AutoReconnect { get; set; }
/// <summary>
/// S+ helper for AutoReconnect
/// </summary>
public ushort UAutoReconnect
{
get { return (ushort)(AutoReconnect ? 1 : 0); }
set { AutoReconnect = value == 1; }
}
/// <summary>
/// Milliseconds to wait before attempting to reconnect. Defaults to 5000
/// </summary>
public int AutoReconnectIntervalMs { get; set; }
/// <summary>
/// Flag Set only when the disconnect method is called.
/// </summary>
bool DisconnectCalledByUser;
/// <summary>
///
/// </summary>
public bool Connected
{
get { return _client.ClientStatus == SocketStatus.SOCKET_STATUS_CONNECTED; }
}
// private Timer for auto reconnect
private CTimer RetryTimer;
#endregion
#region GenericSecureTcpIpClient properties
/// <summary>
/// Bool to show whether the server requires a preshared key. This is used in the DynamicTCPServer class
/// </summary>
public bool SharedKeyRequired { get; set; }
/// <summary>
/// S+ helper for requires shared key bool
/// </summary>
public ushort USharedKeyRequired
{
set
{
if (value == 1)
SharedKeyRequired = true;
else
SharedKeyRequired = false;
}
}
/// <summary>
/// SharedKey is sent for varification to the server. Shared key can be any text (255 char limit in SIMPL+ Module), but must match the Shared Key on the Server module
/// </summary>
public string SharedKey { get; set; }
/// <summary>
/// flag to show the client is waiting for the server to send the shared key
/// </summary>
private bool WaitingForSharedKeyResponse { get; set; }
/// <summary>
/// Semaphore on connect method
/// </summary>
bool IsTryingToConnect;
/// <summary>
/// Bool showing if socket is ready for communication after shared key exchange
/// </summary>
public bool IsReadyForCommunication { get; set; }
/// <summary>
/// S+ helper for IsReadyForCommunication
/// </summary>
public ushort UIsReadyForCommunication
{
get { return (ushort)(IsReadyForCommunication ? 1 : 0); }
}
/// <summary>
/// Bool Heartbeat Enabled flag
/// </summary>
public bool HeartbeatEnabled { get; set; }
/// <summary>
/// S+ helper for Heartbeat Enabled
/// </summary>
public ushort UHeartbeatEnabled
{
get { return (ushort)(HeartbeatEnabled ? 1 : 0); }
set { HeartbeatEnabled = value == 1; }
}
/// <summary>
/// Heartbeat String
/// </summary>
public string HeartbeatString { get; set; }
//public int HeartbeatInterval = 50000;
/// <summary>
/// Milliseconds before server expects another heartbeat. Set by property HeartbeatRequiredIntervalInSeconds which is driven from S+
/// </summary>
public int HeartbeatInterval { get; set; }
/// <summary>
/// Simpl+ Heartbeat Analog value in seconds
/// </summary>
public ushort HeartbeatRequiredIntervalInSeconds { set { HeartbeatInterval = (value * 1000); } }
CTimer HeartbeatSendTimer;
CTimer HeartbeatAckTimer;
// Used to force disconnection on a dead connect attempt
CTimer ConnectFailTimer;
CTimer WaitForSharedKey;
private int ConnectionCount;
bool ProgramIsStopping;
/// <summary>
/// Queue lock
/// </summary>
CCriticalSection DequeueLock = new CCriticalSection();
/// <summary>
/// Receive Queue size. Defaults to 20. Will set to 20 if QueueSize property is less than 20. Use constructor or set queue size property before
/// calling initialize.
/// </summary>
public int ReceiveQueueSize { get; set; }
/// <summary>
/// Queue to temporarily store received messages with the source IP and Port info. Defaults to size 20. Use constructor or set queue size property before
/// calling initialize.
/// </summary>
private CrestronQueue<GenericTcpServerCommMethodReceiveTextArgs> MessageQueue;
#endregion
#region Constructors
/// <summary>
/// Constructor
/// </summary>
/// <param name="key"></param>
/// <param name="address"></param>
/// <param name="port"></param>
/// <param name="bufferSize"></param>
public GenericSecureTcpIpClient(string key, string address, int port, int bufferSize)
: base(key)
{
StreamDebugging = new CommunicationStreamDebugging(key);
Hostname = address;
Port = port;
BufferSize = bufferSize;
AutoReconnectIntervalMs = 5000;
CrestronEnvironment.ProgramStatusEventHandler += new ProgramStatusEventHandler(CrestronEnvironment_ProgramStatusEventHandler);
}
/// <summary>
/// Contstructor that sets all properties by calling the initialize method with a config object.
/// </summary>
/// <param name="key"></param>
/// <param name="clientConfigObject"></param>
public GenericSecureTcpIpClient(string key, TcpClientConfigObject clientConfigObject)
: base(key)
{
StreamDebugging = new CommunicationStreamDebugging(key);
CrestronEnvironment.ProgramStatusEventHandler += new ProgramStatusEventHandler(CrestronEnvironment_ProgramStatusEventHandler);
AutoReconnectIntervalMs = 5000;
BufferSize = 2000;
Initialize(clientConfigObject);
}
/// <summary>
/// Default constructor for S+
/// </summary>
public GenericSecureTcpIpClient()
: base(SplusKey)
{
CrestronEnvironment.ProgramStatusEventHandler += new ProgramStatusEventHandler(CrestronEnvironment_ProgramStatusEventHandler);
AutoReconnectIntervalMs = 5000;
BufferSize = 2000;
}
/// <summary>
/// Just to help S+ set the key
/// </summary>
public void Initialize(string key)
{
Key = key;
}
/// <summary>
/// Initialize called by the constructor that accepts a client config object. Can be called later to reset properties of client.
/// </summary>
/// <param name="config"></param>
public void Initialize(TcpClientConfigObject config)
{
if (config == null)
{
Debug.Console(0, this, "Could not initialize client with key: {0}", Key);
return;
}
try
{
Hostname = config.Control.TcpSshProperties.Address;
Port = config.Control.TcpSshProperties.Port > 0 && config.Control.TcpSshProperties.Port <= 65535
? config.Control.TcpSshProperties.Port
: 80;
AutoReconnect = config.Control.TcpSshProperties.AutoReconnect;
AutoReconnectIntervalMs = config.Control.TcpSshProperties.AutoReconnectIntervalMs > 1000
? config.Control.TcpSshProperties.AutoReconnectIntervalMs
: 5000;
SharedKey = config.SharedKey;
SharedKeyRequired = config.SharedKeyRequired;
HeartbeatEnabled = config.HeartbeatRequired;
HeartbeatRequiredIntervalInSeconds = config.HeartbeatRequiredIntervalInSeconds > 0
? config.HeartbeatRequiredIntervalInSeconds
: (ushort)15;
HeartbeatString = string.IsNullOrEmpty(config.HeartbeatStringToMatch)
? "heartbeat"
: config.HeartbeatStringToMatch;
BufferSize = config.Control.TcpSshProperties.BufferSize > 2000
? config.Control.TcpSshProperties.BufferSize
: 2000;
ReceiveQueueSize = config.ReceiveQueueSize > 20
? config.ReceiveQueueSize
: 20;
MessageQueue = new CrestronQueue<GenericTcpServerCommMethodReceiveTextArgs>(ReceiveQueueSize);
}
catch (Exception ex)
{
Debug.Console(0, this, "Exception initializing client with key: {0}\rException: {1}", Key, ex);
}
}
#endregion
/// <summary>
/// Handles closing this up when the program shuts down
/// </summary>
void CrestronEnvironment_ProgramStatusEventHandler(eProgramStatusEventType programEventType)
{
if (programEventType == eProgramStatusEventType.Stopping || programEventType == eProgramStatusEventType.Paused)
{
Debug.Console(0, this, Debug.ErrorLogLevel.Notice, "Program stopping. Closing _client connection");
ProgramIsStopping = true;
Disconnect();
}
}
public override bool Deactivate()
{
if (_client != null)
{
_client.SocketStatusChange -= this.Client_SocketStatusChange;
DisconnectClient();
}
return true;
}
/// <summary>
/// Connect Method. Will return if already connected. Will write errors if missing address, port, or unique key/name.
/// </summary>
public void Connect()
{
ConnectionCount++;
Debug.Console(2, this, "Attempting connect Count:{0}", ConnectionCount);
if (IsConnected)
{
Debug.Console(0, this, Debug.ErrorLogLevel.Notice, "Already connected. Ignoring.");
return;
}
if (IsTryingToConnect)
{
Debug.Console(0, this, Debug.ErrorLogLevel.Notice, "Already trying to connect. Ignoring.");
return;
}
try
{
IsTryingToConnect = true;
if (RetryTimer != null)
{
RetryTimer.Stop();
RetryTimer = null;
}
if (string.IsNullOrEmpty(Hostname))
{
Debug.Console(0, this, Debug.ErrorLogLevel.Warning, "DynamicTcpClient: No address set");
return;
}
if (Port < 1 || Port > 65535)
{
Debug.Console(0, this, Debug.ErrorLogLevel.Warning, "DynamicTcpClient: Invalid port");
return;
}
if (string.IsNullOrEmpty(SharedKey) && SharedKeyRequired)
{
Debug.Console(0, this, Debug.ErrorLogLevel.Warning, "DynamicTcpClient: No Shared Key set");
return;
}
// clean up previous client
if (_client != null)
{
Disconnect();
}
DisconnectCalledByUser = false;
_client = new SecureTCPClient(Hostname, Port, BufferSize);
_client.SocketStatusChange += Client_SocketStatusChange;
if (HeartbeatEnabled)
_client.SocketSendOrReceiveTimeOutInMs = (HeartbeatInterval * 5);
_client.AddressClientConnectedTo = Hostname;
_client.PortNumber = Port;
// SecureClient = c;
//var timeOfConnect = DateTime.Now.ToString("HH:mm:ss.fff");
ConnectFailTimer = new CTimer(o =>
{
Debug.Console(1, this, Debug.ErrorLogLevel.Error, "Connect attempt has not finished after 30sec Count:{0}", ConnectionCount);
if (IsTryingToConnect)
{
IsTryingToConnect = false;
//if (ConnectionHasHungCallback != null)
//{
// ConnectionHasHungCallback();
//}
//SecureClient.DisconnectFromServer();
//CheckClosedAndTryReconnect();
}
}, 30000);
Debug.Console(2, this, "Making Connection Count:{0}", ConnectionCount);
_client.ConnectToServerAsync(o =>
{
Debug.Console(2, this, "ConnectToServerAsync Count:{0} Ran!", ConnectionCount);
if (ConnectFailTimer != null)
{
ConnectFailTimer.Stop();
}
IsTryingToConnect = false;
if (o.ClientStatus == SocketStatus.SOCKET_STATUS_CONNECTED)
{
Debug.Console(2, this, "_client connected to {0} on port {1}", o.AddressClientConnectedTo, o.LocalPortNumberOfClient);
o.ReceiveDataAsync(Receive);
if (SharedKeyRequired)
{
WaitingForSharedKeyResponse = true;
WaitForSharedKey = new CTimer(timer =>
{
Debug.Console(1, this, Debug.ErrorLogLevel.Warning, "Shared key exchange timer expired. IsReadyForCommunication={0}", IsReadyForCommunication);
// Debug.Console(1, this, "Connect attempt failed {0}", c.ClientStatus);
// This is the only case where we should call DisconectFromServer...Event handeler will trigger the cleanup
o.DisconnectFromServer();
//CheckClosedAndTryReconnect();
//OnClientReadyForcommunications(false); // Should send false event
}, 15000);
}
else
{
//CLient connected and shared key is not required so just raise the ready for communication event. if Shared key
//required this is called by the shared key being negotiated
if (IsReadyForCommunication == false)
{
OnClientReadyForcommunications(true); // Key not required
}
}
}
else
{
Debug.Console(1, this, "Connect attempt failed {0}", o.ClientStatus);
CheckClosedAndTryReconnect();
}
});
}
catch (Exception ex)
{
Debug.Console(0, this, Debug.ErrorLogLevel.Error, "_client connection exception: {0}", ex.Message);
IsTryingToConnect = false;
CheckClosedAndTryReconnect();
}
}
/// <summary>
///
/// </summary>
public void Disconnect()
{
Debug.Console(2, "Disconnect Called");
DisconnectCalledByUser = true;
// stop trying reconnects, if we are
if (RetryTimer != null)
{
RetryTimer.Stop();
RetryTimer = null;
}
if (_client != null)
{
DisconnectClient();
Debug.Console(1, this, "Disconnected");
}
}
/// <summary>
/// Does the actual disconnect business
/// </summary>
public void DisconnectClient()
{
if (_client == null) return;
Debug.Console(1, this, "Disconnecting client");
if (IsConnected)
_client.DisconnectFromServer();
// close up client. ALWAYS use this when disconnecting.
IsTryingToConnect = false;
Debug.Console(2, this, "Disconnecting _client {0}", DisconnectCalledByUser ? ", Called by user" : "");
_client.SocketStatusChange -= Client_SocketStatusChange;
_client.Dispose();
_client = null;
if (ConnectFailTimer == null) return;
ConnectFailTimer.Stop();
ConnectFailTimer.Dispose();
ConnectFailTimer = null;
}
/// <summary>
/// Internal call to close up client. ALWAYS use this when disconnecting.
/// </summary>
//void Cleanup()
//{
// IsTryingToConnect = false;
// if (_client != null)
// {
// //SecureClient.DisconnectFromServer();
// Debug.Console(2, this, "Disconnecting _client {0}", DisconnectCalledByUser ? ", Called by user" : "");
// _client.SocketStatusChange -= Client_SocketStatusChange;
// _client.Dispose();
// _client = null;
// }
// if (ConnectFailTimer != null)
// {
// ConnectFailTimer.Stop();
// ConnectFailTimer.Dispose();
// ConnectFailTimer = null;
// }
//}
#region Methods
/// <summary>
/// Called from Connect failure or Socket Status change if
/// auto reconnect and socket disconnected (Not disconnected by user)
/// </summary>
void CheckClosedAndTryReconnect()
{
if (_client != null)
{
Debug.Console(2, this, "Cleaning up remotely closed/failed connection.");
Disconnect();
}
if (!DisconnectCalledByUser && AutoReconnect)
{
var halfInterval = AutoReconnectIntervalMs / 2;
var rndTime = new Random().Next(-halfInterval, halfInterval) + AutoReconnectIntervalMs;
Debug.Console(2, this, "Attempting reconnect in {0} ms, randomized", rndTime);
if (RetryTimer != null)
{
RetryTimer.Stop();
RetryTimer = null;
}
if (AutoReconnectTriggered != null)
AutoReconnectTriggered(this, new EventArgs());
RetryTimer = new CTimer(o => Connect(), rndTime);
}
}
/// <summary>
/// Receive callback
/// </summary>
/// <param name="client"></param>
/// <param name="numBytes"></param>
void Receive(SecureTCPClient client, int numBytes)
{
if (numBytes > 0)
{
string str = string.Empty;
var handler = TextReceivedQueueInvoke;
try
{
var bytes = client.IncomingDataBuffer.Take(numBytes).ToArray();
str = Encoding.GetEncoding(28591).GetString(bytes, 0, bytes.Length);
Debug.Console(2, this, "_client Received:\r--------\r{0}\r--------", str);
if (!string.IsNullOrEmpty(checkHeartbeat(str)))
{
if (SharedKeyRequired && str == "SharedKey:")
{
Debug.Console(2, this, "Server asking for shared key, sending");
SendText(SharedKey + "\n");
}
else if (SharedKeyRequired && str == "Shared Key Match")
{
StopWaitForSharedKeyTimer();
Debug.Console(2, this, "Shared key confirmed. Ready for communication");
OnClientReadyForcommunications(true); // Successful key exchange
}
else
{
//var bytesHandler = BytesReceived;
//if (bytesHandler != null)
// bytesHandler(this, new GenericCommMethodReceiveBytesArgs(bytes));
var textHandler = TextReceived;
if (textHandler != null)
textHandler(this, new GenericCommMethodReceiveTextArgs(str));
if (handler != null)
{
MessageQueue.TryToEnqueue(new GenericTcpServerCommMethodReceiveTextArgs(str));
}
}
}
}
catch (Exception ex)
{
Debug.Console(1, this, "Error receiving data: {1}. Error: {0}", ex.Message, str);
}
if (client.ClientStatus == SocketStatus.SOCKET_STATUS_CONNECTED)
client.ReceiveDataAsync(Receive);
//Check to see if there is a subscription to the TextReceivedQueueInvoke event. If there is start the dequeue thread.
if (handler != null)
{
var gotLock = DequeueLock.TryEnter();
if (gotLock)
CrestronInvoke.BeginInvoke((o) => DequeueEvent());
}
}
else //JAG added this as I believe the error return is 0 bytes like the server. See help when hover on ReceiveAsync
{
client.DisconnectFromServer();
}
}
/// <summary>
/// This method gets spooled up in its own thread an protected by a CCriticalSection to prevent multiple threads from running concurrently.
/// It will dequeue items as they are enqueued automatically.
/// </summary>
void DequeueEvent()
{
try
{
while (true)
{
// Pull from Queue and fire an event. Block indefinitely until an item can be removed, similar to a Gather.
var message = MessageQueue.Dequeue();
var handler = TextReceivedQueueInvoke;
if (handler != null)
{
handler(this, message);
}
}
}
catch (Exception e)
{
Debug.Console(0, "DequeueEvent error: {0}\r", e);
}
// Make sure to leave the CCritical section in case an exception above stops this thread, or we won't be able to restart it.
if (DequeueLock != null)
{
DequeueLock.Leave();
}
}
void HeartbeatStart()
{
if (HeartbeatEnabled)
{
Debug.Console(2, this, "Starting Heartbeat");
if (HeartbeatSendTimer == null)
{
HeartbeatSendTimer = new CTimer(this.SendHeartbeat, null, HeartbeatInterval, HeartbeatInterval);
}
if (HeartbeatAckTimer == null)
{
HeartbeatAckTimer = new CTimer(HeartbeatAckTimerFail, null, (HeartbeatInterval * 2), (HeartbeatInterval * 2));
}
}
}
void HeartbeatStop()
{
if (HeartbeatSendTimer != null)
{
Debug.Console(2, this, "Stoping Heartbeat Send");
HeartbeatSendTimer.Stop();
HeartbeatSendTimer = null;
}
if (HeartbeatAckTimer != null)
{
Debug.Console(2, this, "Stoping Heartbeat Ack");
HeartbeatAckTimer.Stop();
HeartbeatAckTimer = null;
}
}
void SendHeartbeat(object notused)
{
this.SendText(HeartbeatString);
Debug.Console(2, this, "Sending Heartbeat");
}
//private method to check heartbeat requirements and start or reset timer
string checkHeartbeat(string received)
{
try
{
if (HeartbeatEnabled)
{
if (!string.IsNullOrEmpty(HeartbeatString))
{
var remainingText = received.Replace(HeartbeatString, "");
var noDelimiter = received.Trim(new char[] { '\r', '\n' });
if (noDelimiter.Contains(HeartbeatString))
{
if (HeartbeatAckTimer != null)
{
HeartbeatAckTimer.Reset(HeartbeatInterval * 2);
}
else
{
HeartbeatAckTimer = new CTimer(HeartbeatAckTimerFail, null, (HeartbeatInterval * 2), (HeartbeatInterval * 2));
}
Debug.Console(2, this, "Heartbeat Received: {0}, from Server", HeartbeatString);
return remainingText;
}
}
}
}
catch (Exception ex)
{
Debug.Console(1, this, "Error checking heartbeat: {0}", ex.Message);
}
return received;
}
void HeartbeatAckTimerFail(object o)
{
try
{
if (IsConnected)
{
Debug.Console(1, Debug.ErrorLogLevel.Warning, "Heartbeat not received from Server...DISCONNECTING BECAUSE HEARTBEAT REQUIRED IS TRUE");
SendText("Heartbeat not received by server, closing connection");
CheckClosedAndTryReconnect();
}
}
catch (Exception ex)
{
ErrorLog.Error("Heartbeat timeout Error on _client: {0}, {1}", Key, ex);
}
}
/// <summary>
///
/// </summary>
void StopWaitForSharedKeyTimer()
{
if (WaitForSharedKey != null)
{
WaitForSharedKey.Stop();
WaitForSharedKey = null;
}
}
/// <summary>
/// General send method
/// </summary>
public void SendText(string text)
{
if (!string.IsNullOrEmpty(text))
{
try
{
var bytes = Encoding.GetEncoding(28591).GetBytes(text);
if (_client != null && _client.ClientStatus == SocketStatus.SOCKET_STATUS_CONNECTED)
{
_client.SendDataAsync(bytes, bytes.Length, (c, n) =>
{
// HOW IN THE HELL DO WE CATCH AN EXCEPTION IN SENDING?????
if (n <= 0)
{
Debug.Console(1, Debug.ErrorLogLevel.Warning, "[{0}] Sent zero bytes. Was there an error?", this.Key);
}
});
}
}
catch (Exception ex)
{
Debug.Console(0, this, "Error sending text: {1}. Error: {0}", ex.Message, text);
}
}
}
/// <summary>
///
/// </summary>
public void SendBytes(byte[] bytes)
{
if (bytes.Length > 0)
{
try
{
if (_client != null && _client.ClientStatus == SocketStatus.SOCKET_STATUS_CONNECTED)
_client.SendData(bytes, bytes.Length);
}
catch (Exception ex)
{
Debug.Console(0, this, "Error sending bytes. Error: {0}", ex.Message);
}
}
}
/// <summary>
/// SocketStatusChange Callback
/// </summary>
/// <param name="client"></param>
/// <param name="clientSocketStatus"></param>
void Client_SocketStatusChange(SecureTCPClient client, SocketStatus clientSocketStatus)
{
if (ProgramIsStopping)
{
ProgramIsStopping = false;
return;
}
try
{
Debug.Console(2, this, "Socket status change: {0} ({1})", client.ClientStatus, (ushort)(client.ClientStatus));
OnConnectionChange();
// The client could be null or disposed by this time...
if (_client == null || _client.ClientStatus != SocketStatus.SOCKET_STATUS_CONNECTED)
{
HeartbeatStop();
OnClientReadyForcommunications(false); // socket has gone low
CheckClosedAndTryReconnect();
}
}
catch (Exception ex)
{
Debug.Console(1, this, Debug.ErrorLogLevel.Error, "Error in socket status change callback. Error: {0}\r\r{1}", ex, ex.InnerException);
}
}
/// <summary>
/// Helper for ConnectionChange event
/// </summary>
void OnConnectionChange()
{
var handler = ConnectionChange;
if (handler == null) return;
handler(this, new GenericSocketStatusChageEventArgs(this));
}
/// <summary>
/// Helper to fire ClientReadyForCommunications event
/// </summary>
void OnClientReadyForcommunications(bool isReady)
{
IsReadyForCommunication = isReady;
if (IsReadyForCommunication)
HeartbeatStart();
var handler = ClientReadyForCommunications;
if (handler == null) return;
handler(this, new GenericTcpServerClientReadyForcommunicationsEventArgs(IsReadyForCommunication));
}
#endregion
}
}

17
Pepperdash Core/Pepperdash Core/Comm/GenericSshClient.cs
View File

@@ -323,32 +323,27 @@ namespace PepperDash.Core
/// </summary>
void HandleConnectionFailure()
{
KillClient(SocketStatus.SOCKET_STATUS_CONNECT_FAILED);
Debug.Console(2, this, "Client nulled due to connection failure. AutoReconnect: {0}, ConnectEnabled: {1}", AutoReconnect, ConnectEnabled);
Debug.Console(1, this, "Client nulled due to connection failure. AutoReconnect: {0}, ConnectEnabled: {1}", AutoReconnect, ConnectEnabled);
if (AutoReconnect && ConnectEnabled)
{
Debug.Console(2, this, "Checking autoreconnect: {0}, {1}ms",
AutoReconnect, AutoReconnectIntervalMs);
if (ReconnectTimer == null)// || !ReconnectTimerRunning)
Debug.Console(1, this, "Checking autoreconnect: {0}, {1}ms", AutoReconnect, AutoReconnectIntervalMs);
if (ReconnectTimer == null)
{
ReconnectTimer = new CTimer(o =>
{
Connect();
ReconnectTimer = null;
}, AutoReconnectIntervalMs);
Debug.Console(1, this, Debug.ErrorLogLevel.Notice, "Attempting connection in {0} seconds",
(float)(AutoReconnectIntervalMs / 1000));
}
else
{
Debug.Console(2, this, "{0} second reconnect cycle running",
Debug.Console(1, this, "{0} second reconnect cycle running",
(float)(AutoReconnectIntervalMs / 1000));
}
}
}
/// <summary>
/// Kills the stream
@@ -450,7 +445,7 @@ namespace PepperDash.Core
}
else
{
Debug.Console(2, this, "Client is null or disconnected. Cannot Send Text");
Debug.Console(1, this, "Client is null or disconnected. Cannot Send Text");
}
}
catch (Exception ex)
@@ -482,7 +477,7 @@ namespace PepperDash.Core
}
else
{
Debug.Console(2, this, "Client is null or disconnected. Cannot Send Bytes");
Debug.Console(1, this, "Client is null or disconnected. Cannot Send Bytes");
}
}
catch

22
Pepperdash Core/Pepperdash Core/Comm/TcpClientConfigObject.cs
View File

@@ -1,10 +1,4 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Crestron.SimplSharp;
using PepperDash.Core;
using Newtonsoft.Json;
using Newtonsoft.Json;
namespace PepperDash.Core
{
@@ -16,36 +10,50 @@ namespace PepperDash.Core
/// <summary>
/// TcpSsh Properties
/// </summary>
[JsonProperty("control")]
public ControlPropertiesConfig Control { get; set; }
/// <summary>
/// Bool value for secure. Currently not implemented in TCP sockets as they are not dynamic
/// </summary>
[JsonProperty("secure")]
public bool Secure { get; set; }
/// <summary>
/// Require a shared key that both server and client negotiate. If negotiation fails server disconnects the client
/// </summary>
[JsonProperty("sharedKeyRequired")]
public bool SharedKeyRequired { get; set; }
/// <summary>
/// The shared key that must match on the server and client
/// </summary>
[JsonProperty("sharedKey")]
public string SharedKey { get; set; }
/// <summary>
/// Require a heartbeat on the client/server connection that will cause the server/client to disconnect if the heartbeat is not received.
/// heartbeats do not raise received events.
/// </summary>
[JsonProperty("heartbeatRequired")]
public bool HeartbeatRequired { get; set; }
/// <summary>
/// The interval in seconds for the heartbeat from the client. If not received client is disconnected
/// </summary>
[JsonProperty("heartbeatRequiredIntervalInSeconds")]
public ushort HeartbeatRequiredIntervalInSeconds { get; set; }
/// <summary>
/// HeartbeatString that will be checked against the message received. defaults to heartbeat if no string is provided.
/// </summary>
[JsonProperty("heartbeatStringToMatch")]
public string HeartbeatStringToMatch { get; set; }
/// <summary>
/// Receive Queue size must be greater than 20 or defaults to 20
/// </summary>
[JsonProperty("receiveQueueSize")]
public int ReceiveQueueSize { get; set; }
}
}

2
Pepperdash Core/Pepperdash Core/Comm/eControlMethods.cs
View File

@@ -11,6 +11,6 @@ namespace PepperDash.Core
/// </summary>
public enum eControlMethod
{
None = 0, Com, IpId, IpidTcp, IR, Ssh, Tcpip, Telnet, Cresnet, Cec, Udp, Http, Https, Ws, Wss
None = 0, Com, IpId, IpidTcp, IR, Ssh, Tcpip, Telnet, Cresnet, Cec, Udp, Http, Https, Ws, Wss, SecureTcpIp
}
}

1
Pepperdash Core/Pepperdash Core/PepperDash_Core.csproj
View File

@@ -71,6 +71,7 @@
<Compile Include="CommunicationExtras.cs" />
<Compile Include="Comm\CommunicationStreamDebugging.cs" />
<Compile Include="Comm\ControlPropertiesConfig.cs" />
<Compile Include="Comm\GenericSecureTcpIpClient.cs" />
<Compile Include="Comm\GenericTcpIpClient_ForServer.cs" />
<Compile Include="Comm\GenericHttpSseClient.cs" />
<Compile Include="Comm\GenericSecureTcpIpServer.cs" />