Merge pull request #1469 from PepperDash/hotfix/ssh-stopprog-timing

fix(core-ssh): stop reconnect loop during stopprog

src/Directory.Build.props

@@ -1,6 +1,6 @@
 <Project>
   <PropertyGroup>
-    <Version>2.36.6-local</Version>
+    <Version>2.42.1-local</Version>
     <InformationalVersion>$(Version)</InformationalVersion>
     <Authors>PepperDash Technology</Authors>
     <Company>PepperDash Technology</Company>

src/PepperDash.Core/Comm/GenericSshClient.cs

@@ -151,6 +151,8 @@ namespace PepperDash.Core
         // Thread-safety lock for state changes
         private readonly object _stateLock = new object();
 
+        private volatile bool _isProgramStopping;
+
         private bool disconnectLogged = false;
 
         /// <summary>
@@ -207,11 +209,9 @@ namespace PepperDash.Core
         {
             if (programEventType == eProgramStatusEventType.Stopping)
             {
-                if (client != null)
+                _isProgramStopping = true;
-                {
+                this.LogDebug("Program stopping. Closing connection");
-                    this.LogDebug("Program stopping. Closing connection");
+                Disconnect();
-                    Disconnect();
-                }
             }
         }
 
@@ -228,6 +228,12 @@ namespace PepperDash.Core
                 return;
             }
 
+            if (_isProgramStopping)
+            {
+                this.LogDebug("Skipping connect because program is stopping");
+                return;
+            }
+
             ConnectEnabled = true;
 
             try
@@ -287,13 +293,7 @@ namespace PepperDash.Core
                     }
                     catch (SshConnectionException e)
                     {
-                        var ie = e.InnerException; // The details are inside!!
+                        var ie = e.InnerException; // The details are inside, when present - remote can close the connection with no inner exception at all
-
-                        if (ie is SocketException)
-                        {
-                            this.LogError("CONNECTION failure: Cannot reach host");
-                            this.LogVerbose(ie, "Exception details: ");
-                        }
 
                         if (ie is System.Net.Sockets.SocketException socketException)
                         {
@@ -301,20 +301,20 @@ namespace PepperDash.Core
                                 Hostname, Port);
                             this.LogVerbose(socketException, "SocketException details: ");
                         }
-                        if (ie is SshAuthenticationException)
+                        else if (ie is SshAuthenticationException)
                         {
                             this.LogError("Authentication failure for username {userName}", Username);
                             this.LogVerbose(ie, "AuthenticationException details: ");
                         }
                         else
                         {
-                            this.LogError("Error on connect: {error}", ie.Message);
+                            this.LogError("Error on connect: {error}", ie?.Message ?? e.Message);
-                            this.LogVerbose(ie, "Exception details: ");
+                            this.LogVerbose(ie ?? e, "Exception details: ");
                         }
 
                         disconnectLogged = true;
                         KillClient(SocketStatus.SOCKET_STATUS_CONNECT_FAILED);
-                        if (AutoReconnect)
+                        if (AutoReconnect && ConnectEnabled && !_isProgramStopping)
                         {
                             this.LogDebug("Checking autoreconnect: {autoReconnect}, {autoReconnectInterval}ms", AutoReconnect, AutoReconnectIntervalMs);
                             StartReconnectTimer();
@@ -326,7 +326,7 @@ namespace PepperDash.Core
 
                         disconnectLogged = true;
                         KillClient(SocketStatus.SOCKET_STATUS_CONNECT_FAILED);
-                        if (AutoReconnect)
+                        if (AutoReconnect && ConnectEnabled && !_isProgramStopping)
                         {
                             this.LogDebug("Checking autoreconnect: {0}, {1}ms", AutoReconnect, AutoReconnectIntervalMs);
                             StartReconnectTimer();
@@ -338,7 +338,7 @@ namespace PepperDash.Core
                         this.LogVerbose(e, "Exception details: ");
                         disconnectLogged = true;
                         KillClient(SocketStatus.SOCKET_STATUS_CONNECT_FAILED);
-                        if (AutoReconnect)
+                        if (AutoReconnect && ConnectEnabled && !_isProgramStopping)
                         {
                             this.LogDebug("Checking autoreconnect: {0}, {1}ms", AutoReconnect, AutoReconnectIntervalMs);
                             StartReconnectTimer();
@@ -473,7 +473,7 @@ namespace PepperDash.Core
                 {
                     connectLock.Release();
                 }
-                if (AutoReconnect && ConnectEnabled)
+                if (AutoReconnect && ConnectEnabled && !_isProgramStopping)
                 {
                     this.LogDebug("Checking autoreconnect: {0}, {1}ms", AutoReconnect, AutoReconnectIntervalMs);
                     StartReconnectTimer();
@@ -516,7 +516,10 @@ namespace PepperDash.Core
                 this.LogError("ObjectDisposedException sending '{message}'. Restarting connection...", text.Trim());
 
                 KillClient(SocketStatus.SOCKET_STATUS_CONNECT_FAILED);
-                StartReconnectTimer();
+                if (AutoReconnect && ConnectEnabled && !_isProgramStopping)
+                {
+                    StartReconnectTimer();
+                }
             }
             catch (Exception ex)
             {
@@ -549,7 +552,10 @@ namespace PepperDash.Core
                 this.LogException(ex, "ObjectDisposedException sending {message}", ComTextHelper.GetEscapedText(bytes));
 
                 KillClient(SocketStatus.SOCKET_STATUS_CONNECT_FAILED);
-                StartReconnectTimer();
+                if (AutoReconnect && ConnectEnabled && !_isProgramStopping)
+                {
+                    StartReconnectTimer();
+                }
             }
             catch (Exception ex)
             {

src/PepperDash.Essentials.MobileControl/Touchpanel/MobileControlTouchpanelController.cs

@@ -25,11 +25,28 @@ namespace PepperDash.Essentials.Touchpanel
     /// Mobile Control touchpanel controller that provides app control, Zoom integration, 
     /// and mobile control functionality for Crestron touchpanels.
     /// </summary>
-    public class MobileControlTouchpanelController : TouchpanelBase, IHasFeedback, ITswAppControl, ITswZoomControl, IDeviceInfoProvider, IMobileControlCrestronTouchpanelController, ITheme
+    public class MobileControlTouchpanelController : TouchpanelBase, IHasFeedback, ITswAppControl, ITswZoomControl, IDeviceInfoProvider, IMobileControlCrestronTouchpanelController, ITheme, ICommunicationMonitor
     {
         private readonly MobileControlTouchpanelProperties localConfig;
         private IMobileControlRoomMessenger _bridge;
 
+        /// <summary>
+        /// Gets the CommunicationMonitor tracking the panel's online/offline state
+        /// </summary>
+        public StatusMonitorBase CommunicationMonitor { get; private set; }
+
+        private sealed class NullCommunicationMonitor : StatusMonitorBase
+        {
+            public NullCommunicationMonitor(IKeyed parent) : base(parent, 120000, 300000)
+            {
+                Status = MonitorStatus.InError;
+                Message = "Panel is not initialized";
+            }
+
+            public override void Start() { }
+            public override void Stop() { }
+        }
+
         private string _appUrl;
 
         /// <summary>
@@ -128,6 +145,11 @@ namespace PepperDash.Essentials.Touchpanel
         {
             localConfig = config;
 
+            if (panel != null)
+            {
+                CommunicationMonitor = new CrestronGenericBaseCommunicationMonitor(this, panel, 120000, 300000);
+            }
+
             AddPostActivationAction(SubscribeForMobileControlUpdates);
 
             ThemeFeedback = new StringFeedback($"{Key}-theme", () => Theme);
@@ -366,6 +388,8 @@ namespace PepperDash.Essentials.Touchpanel
         /// </summary>
         public override bool CustomActivate()
         {
+            CommunicationMonitor?.Start();
+
             var appMessenger = new ITswAppControlMessenger($"appControlMessenger-{Key}", $"/device/{Key}", this);
 
             var zoomMessenger = new ITswZoomControlMessenger($"zoomControlMessenger-{Key}", $"/device/{Key}", this);
@@ -393,6 +417,17 @@ namespace PepperDash.Essentials.Touchpanel
             return base.CustomActivate();
         }
 
+        /// <summary>
+        /// Stops the CommunicationMonitor on deactivation.
+        /// </summary>
+        /// <returns>True if deactivation was successful; otherwise, false.</returns>
+        public override bool Deactivate()
+        {
+            CommunicationMonitor?.Stop();
+
+            return base.Deactivate();
+        }
+
         /// <summary>
         /// Handles device extender signal changes for system reserved signals.
         /// </summary>
@@ -519,15 +554,8 @@ namespace PepperDash.Essentials.Touchpanel
                 return false;
             }) ? csIpAddress.ToString() : processorIp;
 
-            var match = Regex.Match(url, @"^http://([^:/]+):\d+/mc/app\?token=.+$");
+            // replace the host but preserve whatever scheme (http/https) is already present in the URL
-            if (match.Success)
+            var updatedUrl = Regex.Replace(url, @"^(https?)://[^:/]+", $"$1://{ip}");
-            {
-                string ipa = match.Groups[1].Value;
-                // ip will be "192.168.1.100"
-            }
-
-            // replace ipa with ip but leave the rest of the string intact
-            var updatedUrl = Regex.Replace(url, @"^http://[^:/]+", $"http://{ip}");
 
             this.LogVerbose("Updated URL: {updatedUrl}", updatedUrl);
 

src/PepperDash.Essentials.MobileControl/WebSocketServer/MobileControlWebsocketServer.cs

@@ -127,6 +127,16 @@ namespace PepperDash.Essentials.WebSocketServer
         /// </summary>
         public int Port { get; private set; }
 
+        /// <summary>
+        /// Gets the HTTP scheme to use for generated URLs, based on whether the direct server is configured as secure
+        /// </summary>
+        private string HttpScheme => _parent.Config.DirectServer.Secure ? "https" : "http";
+
+        /// <summary>
+        /// Gets the WebSocket scheme to use for generated URLs, based on whether the direct server is configured as secure
+        /// </summary>
+        private string WsScheme => _parent.Config.DirectServer.Secure ? "wss" : "ws";
+
         /// <summary>
         /// Gets the user app URL prefix
         /// </summary>
@@ -134,7 +144,8 @@ namespace PepperDash.Essentials.WebSocketServer
         {
             get
             {
-                return string.Format("http://{0}:{1}{2}?token=",
+                return string.Format("{0}://{1}:{2}{3}?token=",
+                    HttpScheme,
                     CrestronEthernetHelper.GetEthernetParameter(CrestronEthernetHelper.ETHERNET_PARAMETER_TO_GET.GET_CURRENT_IP_ADDRESS, 0),
                     Port,
                     _userAppBaseHref);
@@ -273,7 +284,7 @@ namespace PepperDash.Essentials.WebSocketServer
             {
                 base.Initialize();
 
-                _server = new HttpServer(Port, false);
+                _server = new HttpServer(Port, _parent.Config.DirectServer.Secure);
 
                 _server.OnGet += Server_OnGet;
 
@@ -291,7 +302,7 @@ namespace PepperDash.Essentials.WebSocketServer
                     {
                         ClientCertificateRequired = false,
                         CheckCertificateRevocation = false,
-                        EnabledSslProtocols = SslProtocols.Tls12 | SslProtocols.Tls11
+                        EnabledSslProtocols = SslProtocols.Tls12
                     };
                 }
 
@@ -403,11 +414,11 @@ namespace PepperDash.Essentials.WebSocketServer
                     ip = csIpAddress.ToString();
                 }
 
-                var appUrl = $"http://{ip}:{_parent.Config.DirectServer.Port}/mc/app?token={touchpanel.Key}";
+                var appUrl = $"{HttpScheme}://{ip}:{Port}/mc/app?token={touchpanel.Key}";
 
                 this.LogVerbose("Sending URL {appUrl} to touchpanel {touchpanelKey}", appUrl, touchpanel.Touchpanel.Key);
 
-                touchpanel.Touchpanel.SetAppUrl($"http://{ip}:{_parent.Config.DirectServer.Port}/mc/app?token={touchpanel.Key}");
+                touchpanel.Touchpanel.SetAppUrl(appUrl);
             }
         }
 
@@ -487,7 +498,7 @@ namespace PepperDash.Essentials.WebSocketServer
             {
                 var config = new MobileControlApplicationConfig
                 {
-                    ApiPath = string.Format("http://{0}:{1}/mc/api", processorIp, _parent.Config.DirectServer.Port),
+                    ApiPath = string.Format("{0}://{1}:{2}/mc/api", HttpScheme, processorIp, Port),
                     GatewayAppPath = "",
                     LogoPath = _parent.Config.ApplicationConfig?.LogoPath ?? "logo/logo.png",
                     EnableDev = _parent.Config.ApplicationConfig?.EnableDev ?? false,
@@ -1098,6 +1109,7 @@ namespace PepperDash.Essentials.WebSocketServer
                     res.StatusCode = 200;
                     res.Close();
 
+                    // remote log collector has no dedicated secure flag; keep it on http regardless of DirectServer.Secure
                     var logRequest = new HttpRequestMessage(HttpMethod.Post, $"http://{_parent.Config.DirectServer.Logging.Host}:{_parent.Config.DirectServer.Logging.Port}/logs")
                     {
                         Content = new StringContent(body, Encoding.UTF8, "application/json"),
@@ -1150,6 +1162,11 @@ namespace PepperDash.Essentials.WebSocketServer
             var qp = req.QueryString;
             var token = qp["token"];
 
+            // Each join mints a single-use clientId; the panel webview must never replay a cached
+            // response, or it reconnects forever with an already-consumed id (1008 loop).
+            res.Headers.Add("Cache-Control", "no-store");
+            res.Headers.Add("Pragma", "no-cache");
+
             this.LogVerbose("Join Room Request with token: {token}", token);
 
             byte[] body;
@@ -1213,8 +1230,7 @@ namespace PepperDash.Essentials.WebSocketServer
             this.LogVerbose("Assigning ClientId: {clientId} for token: {token} at {timestamp}", clientId, token, now);
 
             // Construct WebSocket URL with clientId query parameter
-            var wsProtocol = "ws";
+            var wsUrl = $"{WsScheme}://{CrestronEthernetHelper.GetEthernetParameter(CrestronEthernetHelper.ETHERNET_PARAMETER_TO_GET.GET_CURRENT_IP_ADDRESS, 0)}:{Port}{_wsPath}{token}?clientId={clientId}";
-            var wsUrl = $"{wsProtocol}://{CrestronEthernetHelper.GetEthernetParameter(CrestronEthernetHelper.ETHERNET_PARAMETER_TO_GET.GET_CURRENT_IP_ADDRESS, 0)}:{Port}{_wsPath}{token}?clientId={clientId}";
 
             // Construct the response object
             JoinResponse jRes = new JoinResponse
@@ -1226,7 +1242,8 @@ namespace PepperDash.Essentials.WebSocketServer
                 Config = _parent.GetConfigWithPluginVersion(),
                 CodeExpires = new DateTime().AddYears(1),
                 UserCode = bridge.UserCode,
-                UserAppUrl = string.Format("http://{0}:{1}/mc/app",
+                UserAppUrl = string.Format("{0}://{1}:{2}/mc/app",
+                HttpScheme,
                 CrestronEthernetHelper.GetEthernetParameter(CrestronEthernetHelper.ETHERNET_PARAMETER_TO_GET.GET_CURRENT_IP_ADDRESS, 0),
                 Port),
                 WebSocketUrl = wsUrl,
@@ -1251,6 +1268,8 @@ namespace PepperDash.Essentials.WebSocketServer
         {
             res.StatusCode = 200;
             res.ContentType = "application/json";
+            res.Headers.Add("Cache-Control", "no-store");
+            res.Headers.Add("Pragma", "no-cache");
             var version = new Version() { ServerVersion = _parent.GetConfigWithPluginVersion().RuntimeInfo.PluginVersion };
             var message = JsonConvert.SerializeObject(version);
             this.LogVerbose("{message}", message);