add alert/notification functionality (for server connection events and messages)

Application/Alerts/AlertExtensions.cs

@@ -0,0 +1,55 @@
+using System;
+using SharedLibraryCore;
+using SharedLibraryCore.Alerts;
+using SharedLibraryCore.Database.Models;
+
+namespace IW4MAdmin.Application.Alerts;
+
+public static class AlertExtensions
+{
+    public static Alert.AlertState BuildAlert(this EFClient client, Alert.AlertCategory? type = null)
+    {
+        return new Alert.AlertState
+        {
+            RecipientId = client.ClientId,
+            Category = type ?? Alert.AlertCategory.Information
+        };
+    }
+
+    public static Alert.AlertState WithCategory(this Alert.AlertState state, Alert.AlertCategory category)
+    {
+        state.Category = category;
+        return state;
+    }
+
+    public static Alert.AlertState OfType(this Alert.AlertState state, string type)
+    {
+        state.Type = type;
+        return state;
+    }
+
+    public static Alert.AlertState WithMessage(this Alert.AlertState state, string message)
+    {
+        state.Message = message;
+        return state;
+    }
+
+    public static Alert.AlertState ExpiresIn(this Alert.AlertState state, TimeSpan expiration)
+    {
+        state.ExpiresAt = DateTime.Now.Add(expiration);
+        return state;
+    }
+    
+    public static Alert.AlertState FromSource(this Alert.AlertState state, string source)
+    {
+        state.Source = source;
+        return state;
+    }
+
+    public static Alert.AlertState FromClient(this Alert.AlertState state, EFClient client)
+    {
+        state.Source = client.Name.StripColors();
+        state.SourceId = client.ClientId;
+        return state;
+    }
+}

Application/Alerts/AlertManager.cs

@@ -0,0 +1,137 @@
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using SharedLibraryCore.Alerts;
+using SharedLibraryCore.Configuration;
+using SharedLibraryCore.Database.Models;
+using SharedLibraryCore.Interfaces;
+
+namespace IW4MAdmin.Application.Alerts;
+
+public class AlertManager : IAlertManager
+{
+    private readonly ApplicationConfiguration _appConfig;
+    private readonly ConcurrentDictionary<int, List<Alert.AlertState>> _states = new();
+    private readonly List<Func<Task<IEnumerable<Alert.AlertState>>>> _staticSources = new();
+
+    public AlertManager(ApplicationConfiguration appConfig)
+    {
+        _appConfig = appConfig;
+        _states.TryAdd(0, new List<Alert.AlertState>());
+    }
+
+    public EventHandler<Alert.AlertState> OnAlertConsumed { get; set; }
+
+    public async Task Initialize()
+    {
+        foreach (var source in _staticSources)
+        {
+            var alerts = await source();
+            foreach (var alert in alerts)
+            {
+                AddAlert(alert);
+            }
+        }
+    }
+
+    public IEnumerable<Alert.AlertState> RetrieveAlerts(EFClient client)
+    {
+        lock (_states)
+        {
+            var alerts = Enumerable.Empty<Alert.AlertState>();
+            if (client.Level > Data.Models.Client.EFClient.Permission.Trusted)
+            {
+                alerts = alerts.Concat(_states[0].Where(alert =>
+                    alert.MinimumPermission is null || alert.MinimumPermission <= client.Level));
+            }
+
+            if (_states.ContainsKey(client.ClientId))
+            {
+                alerts = alerts.Concat(_states[client.ClientId].AsReadOnly());
+            }
+
+            return alerts.OrderByDescending(alert => alert.OccuredAt);
+        }
+    }
+
+    public void MarkAlertAsRead(Guid alertId)
+    {
+        lock (_states)
+        {
+            foreach (var items in _states.Values)
+            {
+                var matchingEvent = items.FirstOrDefault(item => item.AlertId == alertId);
+
+                if (matchingEvent is null)
+                {
+                    continue;
+                }
+
+                items.Remove(matchingEvent);
+                OnAlertConsumed?.Invoke(this, matchingEvent);
+            }
+        }
+    }
+
+    public void MarkAllAlertsAsRead(int recipientId)
+    {
+        lock (_states)
+        {
+            foreach (var items in _states.Values)
+            {
+                items.RemoveAll(item =>
+                {
+                    if (item.RecipientId != null && item.RecipientId != recipientId)
+                    {
+                        return false;
+                    }
+
+                    OnAlertConsumed?.Invoke(this, item);
+                    return true;
+                });
+            }
+        }
+    }
+
+    public void AddAlert(Alert.AlertState alert)
+    {
+        lock (_states)
+        {
+            if (alert.RecipientId is null)
+            {
+                _states[0].Add(alert);
+                return;
+            }
+
+            if (!_states.ContainsKey(alert.RecipientId.Value))
+            {
+                _states[alert.RecipientId.Value] = new List<Alert.AlertState>();
+            }
+
+            if (_appConfig.MinimumAlertPermissions.ContainsKey(alert.Type))
+            {
+                alert.MinimumPermission = _appConfig.MinimumAlertPermissions[alert.Type];
+            }
+
+            _states[alert.RecipientId.Value].Add(alert);
+
+            PruneOldAlerts();
+        }
+    }
+
+    public void RegisterStaticAlertSource(Func<Task<IEnumerable<Alert.AlertState>>> alertSource)
+    {
+        _staticSources.Add(alertSource);
+    }
+
+
+    private void PruneOldAlerts()
+    {
+        foreach (var value in _states.Values)
+        {
+            value.RemoveAll(item => item.ExpiresAt < DateTime.UtcNow);
+        }
+    }
+}

Application/ApplicationManager.cs

@@ -57,6 +57,7 @@ namespace IW4MAdmin.Application
         private readonly List<MessageToken> MessageTokens;
         private readonly ClientService ClientSvc;
         readonly PenaltyService PenaltySvc;
+        private readonly IAlertManager _alertManager;
         public IConfigurationHandler<ApplicationConfiguration> ConfigHandler;
         readonly IPageList PageList;
         private readonly TimeSpan _throttleTimeout = new TimeSpan(0, 1, 0);
@@ -82,13 +83,14 @@ namespace IW4MAdmin.Application
             IEnumerable<IPlugin> plugins, IParserRegexFactory parserRegexFactory, IEnumerable<IRegisterEvent> customParserEvents,
             IEventHandler eventHandler, IScriptCommandFactory scriptCommandFactory, IDatabaseContextFactory contextFactory,
             IMetaRegistration metaRegistration, IScriptPluginServiceResolver scriptPluginServiceResolver, ClientService clientService, IServiceProvider serviceProvider,
-            ChangeHistoryService changeHistoryService, ApplicationConfiguration appConfig, PenaltyService penaltyService)
+            ChangeHistoryService changeHistoryService, ApplicationConfiguration appConfig, PenaltyService penaltyService, IAlertManager alertManager)
         {
             MiddlewareActionHandler = actionHandler;
             _servers = new ConcurrentBag<Server>();
             MessageTokens = new List<MessageToken>();
             ClientSvc = clientService;
             PenaltySvc = penaltyService;
+            _alertManager = alertManager;
             ConfigHandler = appConfigHandler;
             StartTime = DateTime.UtcNow;
             PageList = new PageList();
@@ -508,6 +510,7 @@ namespace IW4MAdmin.Application
             #endregion
 
             _metaRegistration.Register();
+            await _alertManager.Initialize();
 
             #region CUSTOM_EVENTS
             foreach (var customEvent in _customParserEvents.SelectMany(_events => _events.Events))
@@ -697,5 +700,6 @@ namespace IW4MAdmin.Application
         }
 
         public void RemoveCommandByName(string commandName) => _commands.RemoveAll(_command => _command.Name == commandName);
+        public IAlertManager AlertManager => _alertManager;
     }
 }

Application/Commands/OfflineMessageCommand.cs

@@ -1,11 +1,14 @@
 using System;
+using System.Linq;
 using System.Threading.Tasks;
 using Data.Abstractions;
 using Data.Models.Client;
 using Data.Models.Misc;
+using IW4MAdmin.Application.Alerts;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Logging;
 using SharedLibraryCore;
+using SharedLibraryCore.Alerts;
 using SharedLibraryCore.Configuration;
 using SharedLibraryCore.Interfaces;
 using ILogger = Microsoft.Extensions.Logging.ILogger;
@@ -16,19 +19,66 @@ namespace IW4MAdmin.Application.Commands
     {
         private readonly IDatabaseContextFactory _contextFactory;
         private readonly ILogger _logger;
+        private readonly IAlertManager _alertManager;
         private const short MaxLength = 1024;
-        
+
         public OfflineMessageCommand(CommandConfiguration config, ITranslationLookup layout,
-            IDatabaseContextFactory contextFactory, ILogger<IDatabaseContextFactory> logger) : base(config, layout)
+            IDatabaseContextFactory contextFactory, ILogger<IDatabaseContextFactory> logger, IAlertManager alertManager)
+            : base(config, layout)
         {
             Name = "offlinemessage";
             Description = _translationLookup["COMMANDS_OFFLINE_MESSAGE_DESC"];
             Alias = "om";
             Permission = EFClient.Permission.Moderator;
             RequiresTarget = true;
-            
+
             _contextFactory = contextFactory;
             _logger = logger;
+            _alertManager = alertManager;
+
+            _alertManager.RegisterStaticAlertSource(async () =>
+            {
+                var context = contextFactory.CreateContext(false);
+                return await context.InboxMessages.Where(message => !message.IsDelivered)
+                    .Where(message => message.CreatedDateTime >= DateTime.UtcNow.AddDays(-7))
+                    .Where(message => message.DestinationClient.Level > EFClient.Permission.User)
+                    .Select(message => new Alert.AlertState
+                    {
+                        OccuredAt = message.CreatedDateTime,
+                        Message = message.Message,
+                        ExpiresAt = DateTime.UtcNow.AddDays(7),
+                        Category = Alert.AlertCategory.Message,
+                        Source = message.SourceClient.CurrentAlias.Name.StripColors(),
+                        SourceId = message.SourceClientId,
+                        RecipientId = message.DestinationClientId,
+                        ReferenceId = message.InboxMessageId,
+                        Type = nameof(EFInboxMessage)
+                    }).ToListAsync();
+            });
+
+            _alertManager.OnAlertConsumed += (_, state) =>
+            {
+                if (state.Category != Alert.AlertCategory.Message || state.ReferenceId is null)
+                {
+                    return;
+                }
+
+                try
+                {
+                    var context = contextFactory.CreateContext(true);
+                    foreach (var message in context.InboxMessages
+                                 .Where(message => message.InboxMessageId == state.ReferenceId.Value).ToList())
+                    {
+                        message.IsDelivered = true;
+                    }
+
+                    context.SaveChanges();
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Could not update message state for alert {@Alert}", state);
+                }
+            };
         }
 
         public override async Task ExecuteAsync(GameEvent gameEvent)
@@ -38,23 +88,24 @@ namespace IW4MAdmin.Application.Commands
                 gameEvent.Origin.Tell(_translationLookup["COMMANDS_OFFLINE_MESSAGE_TOO_LONG"].FormatExt(MaxLength));
                 return;
             }
-            
+
             if (gameEvent.Target.ClientId == gameEvent.Origin.ClientId)
             {
                 gameEvent.Origin.Tell(_translationLookup["COMMANDS_OFFLINE_MESSAGE_SELF"].FormatExt(MaxLength));
                 return;
             }
-            
+
             if (gameEvent.Target.IsIngame)
             {
-                gameEvent.Origin.Tell(_translationLookup["COMMANDS_OFFLINE_MESSAGE_INGAME"].FormatExt(gameEvent.Target.Name));
+                gameEvent.Origin.Tell(_translationLookup["COMMANDS_OFFLINE_MESSAGE_INGAME"]
+                    .FormatExt(gameEvent.Target.Name));
                 return;
             }
-            
+
             await using var context = _contextFactory.CreateContext(enableTracking: false);
             var server = await context.Servers.FirstAsync(srv => srv.EndPoint == gameEvent.Owner.ToString());
 
-            var newMessage = new EFInboxMessage()
+            var newMessage = new EFInboxMessage
             {
                 SourceClientId = gameEvent.Origin.ClientId,
                 DestinationClientId = gameEvent.Target.ClientId,
@@ -62,6 +113,12 @@ namespace IW4MAdmin.Application.Commands
                 Message = gameEvent.Data,
             };
 
+            _alertManager.AddAlert(gameEvent.Target.BuildAlert(Alert.AlertCategory.Message)
+                .WithMessage(gameEvent.Data.Trim())
+                .FromClient(gameEvent.Origin)
+                .OfType(nameof(EFInboxMessage))
+                .ExpiresIn(TimeSpan.FromDays(7)));
+
             try
             {
                 context.Set<EFInboxMessage>().Add(newMessage);
@@ -75,4 +132,4 @@ namespace IW4MAdmin.Application.Commands
             }
         }
     }
-}
+}

Application/IW4MServer.cs

@@ -24,8 +24,10 @@ using Serilog.Context;
 using static SharedLibraryCore.Database.Models.EFClient;
 using Data.Models;
 using Data.Models.Server;
+using IW4MAdmin.Application.Alerts;
 using IW4MAdmin.Application.Commands;
 using Microsoft.EntityFrameworkCore;
+using SharedLibraryCore.Alerts;
 using static Data.Models.Client.EFClient;
 
 namespace IW4MAdmin
@@ -306,8 +308,16 @@ namespace IW4MAdmin
                     if (!Manager.GetApplicationSettings().Configuration().IgnoreServerConnectionLost)
                     {
                         Console.WriteLine(loc["SERVER_ERROR_COMMUNICATION"].FormatExt($"{IP}:{Port}"));
+                        
+                        var alert = Alert.AlertState.Build().OfType(E.Type.ToString())
+                            .WithCategory(Alert.AlertCategory.Error)
+                            .FromSource("System")
+                            .WithMessage(loc["SERVER_ERROR_COMMUNICATION"].FormatExt($"{IP}:{Port}"))
+                            .ExpiresIn(TimeSpan.FromDays(1));
+                        
+                        Manager.AlertManager.AddAlert(alert);
                     }
-
+      
                     Throttled = true;
                 }
 
@@ -318,7 +328,15 @@ namespace IW4MAdmin
                     
                     if (!Manager.GetApplicationSettings().Configuration().IgnoreServerConnectionLost)
                     {
-                        Console.WriteLine(loc["MANAGER_CONNECTION_REST"].FormatExt($"[{IP}:{Port}]"));
+                        Console.WriteLine(loc["MANAGER_CONNECTION_REST"].FormatExt($"{IP}:{Port}"));
+                        
+                        var alert = Alert.AlertState.Build().OfType(E.Type.ToString())
+                            .WithCategory(Alert.AlertCategory.Information)
+                            .FromSource("System")
+                            .WithMessage(loc["MANAGER_CONNECTION_REST"].FormatExt($"{IP}:{Port}"))
+                            .ExpiresIn(TimeSpan.FromDays(1));
+
+                        Manager.AlertManager.AddAlert(alert);
                     }
 
                     if (!string.IsNullOrEmpty(CustomSayName))

Application/Main.cs

@@ -27,6 +27,7 @@ using System.Threading.Tasks;
 using Data.Abstractions;
 using Data.Helpers;
 using Integrations.Source.Extensions;
+using IW4MAdmin.Application.Alerts;
 using IW4MAdmin.Application.Extensions;
 using IW4MAdmin.Application.Localization;
 using Microsoft.Extensions.Logging;
@@ -448,6 +449,7 @@ namespace IW4MAdmin.Application
                 .AddSingleton<IServerDataCollector, ServerDataCollector>()
                 .AddSingleton<IEventPublisher, EventPublisher>()
                 .AddSingleton<IGeoLocationService>(new GeoLocationService(Path.Join(".", "Resources", "GeoLite2-Country.mmdb")))
+                .AddSingleton<IAlertManager, AlertManager>()
                 .AddTransient<IScriptPluginTimerHelper, ScriptPluginTimerHelper>()
                 .AddSingleton(translationLookup)
                 .AddDatabaseContextOptions(appConfig);

SharedLibraryCore/Alerts/Alert.cs

@@ -0,0 +1,33 @@
+using System;
+using Data.Models.Client;
+
+namespace SharedLibraryCore.Alerts;
+
+public class Alert
+{
+    public enum AlertCategory
+    {
+        Information,
+        Warning,
+        Error,
+        Message,
+    }
+
+    public class AlertState
+    {
+        public Guid AlertId { get; } = Guid.NewGuid();
+        public AlertCategory Category { get; set; }
+        public DateTime OccuredAt { get; set; } = DateTime.UtcNow;
+        public DateTime? ExpiresAt { get; set; }
+        public string Message { get; set; }
+        public string Source { get; set; } 
+        public int? RecipientId { get; set; }
+        public int? SourceId { get; set; }
+        public int? ReferenceId { get; set; }
+        public bool? Delivered { get; set; }
+        public bool? Consumed { get; set; }
+        public EFClient.Permission? MinimumPermission { get; set; }
+        public string Type { get; set; }
+        public static AlertState Build() => new();
+    }
+}

SharedLibraryCore/BaseController.cs

@@ -20,6 +20,8 @@ namespace SharedLibraryCore
 {
     public class BaseController : Controller
     {
+        protected readonly IAlertManager AlertManager;
+
         /// <summary>
         ///     life span in months
         /// </summary>
@@ -34,6 +36,7 @@ namespace SharedLibraryCore
 
         public BaseController(IManager manager)
         {
+            AlertManager = manager.AlertManager;
             Manager = manager;
             Localization ??= Utilities.CurrentLocalization.LocalizationIndex;
             AppConfig = Manager.GetApplicationSettings().Configuration();
@@ -169,6 +172,7 @@ namespace SharedLibraryCore
             ViewBag.ReportCount = Manager.GetServers().Sum(server =>
                 server.Reports.Count(report => DateTime.UtcNow - report.ReportedOn <= TimeSpan.FromHours(24)));
             ViewBag.PermissionsSet = PermissionsSet;
+            ViewBag.Alerts = AlertManager.RetrieveAlerts(Client).ToList();
 
             base.OnActionExecuting(context);
         }

SharedLibraryCore/Configuration/ApplicationConfiguration.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
 using System.Linq;
+using Data.Models.Misc;
 using Newtonsoft.Json;
 using SharedLibraryCore.Configuration.Attributes;
 using SharedLibraryCore.Interfaces;
@@ -154,6 +155,13 @@ namespace SharedLibraryCore.Configuration
             { Permission.Console.ToString(), new List<string> { "*" } }
         };
 
+        public Dictionary<string, Permission> MinimumAlertPermissions { get; set; } = new()
+        {
+            { nameof(EFInboxMessage), Permission.Trusted },
+            { GameEvent.EventType.ConnectionLost.ToString(), Permission.Administrator },
+            { GameEvent.EventType.ConnectionRestored.ToString(), Permission.Administrator }
+        };
+
         [ConfigurationIgnore]
         [LocalizedDisplayName("WEBFRONT_CONFIGURATION_PRESET_BAN_REASONS")]
         public Dictionary<string, string> PresetPenaltyReasons { get; set; } = new()

SharedLibraryCore/Interfaces/IAlertManager.cs

@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using SharedLibraryCore.Alerts;
+using SharedLibraryCore.Database.Models;
+
+namespace SharedLibraryCore.Interfaces;
+
+public interface IAlertManager
+{
+    /// <summary>
+    /// Initializes the manager
+    /// </summary>
+    /// <returns></returns>
+    Task Initialize();
+    
+    /// <summary>
+    /// Get all the alerts for given client
+    /// </summary>
+    /// <param name="client">client to retrieve alerts for</param>
+    /// <returns></returns>
+    IEnumerable<Alert.AlertState> RetrieveAlerts(EFClient client);
+    
+    /// <summary>
+    /// Trigger a new alert
+    /// </summary>
+    /// <param name="alert">Alert to trigger</param>
+    void AddAlert(Alert.AlertState alert);
+    
+    /// <summary>
+    /// Marks an alert as read and removes it from the manager
+    /// </summary>
+    /// <param name="alertId">Id of the alert to mark as read</param>
+    void MarkAlertAsRead(Guid alertId);
+    
+    /// <summary>
+    /// Mark all alerts intended for the given recipientId as read
+    /// </summary>
+    /// <param name="recipientId">Identifier of the recipient</param>
+    void MarkAllAlertsAsRead(int recipientId);
+    
+    /// <summary>
+    /// Registers a static (persistent) event source eg datastore that
+    /// gets initialized at startup
+    /// </summary>
+    /// <param name="alertSource">Source action</param>
+    void RegisterStaticAlertSource(Func<Task<IEnumerable<Alert.AlertState>>> alertSource);
+    
+    /// <summary>
+    /// Fires when an alert has been consumed (dimissed)
+    /// </summary>
+    EventHandler<Alert.AlertState> OnAlertConsumed { get; set; }
+    
+}

SharedLibraryCore/Interfaces/IManager.cs

@@ -102,5 +102,7 @@ namespace SharedLibraryCore.Interfaces
         ///     event executed when event has finished executing
         /// </summary>
         event EventHandler<GameEvent> OnGameEventExecuted;
+        
+        IAlertManager AlertManager { get; }
     }
 }

WebfrontCore/Controllers/ActionController.cs

@@ -24,6 +24,7 @@ namespace WebfrontCore.Controllers
         private readonly string _unbanCommandName;
         private readonly string _sayCommandName;
         private readonly string _kickCommandName;
+        private readonly string _offlineMessageCommandName;
         private readonly string _flagCommandName;
         private readonly string _unflagCommandName;
         private readonly string _setLevelCommandName;
@@ -64,6 +65,9 @@ namespace WebfrontCore.Controllers
                     case nameof(SetLevelCommand):
                         _setLevelCommandName = cmd.Name;
                         break;
+                    case "OfflineMessageCommand":
+                        _offlineMessageCommandName = cmd.Name;
+                        break;
                 }
             }
         }
@@ -213,7 +217,7 @@ namespace WebfrontCore.Controllers
 
         public async Task<IActionResult> Login(int clientId, string password)
         {
-            return await Task.FromResult(RedirectToAction("Login", "Account", new {clientId, password}));
+            return await Task.FromResult(RedirectToAction("Login", "Account", new { clientId, password }));
         }
 
         public IActionResult EditForm()
@@ -327,26 +331,27 @@ namespace WebfrontCore.Controllers
         public async Task<IActionResult> RecentClientsForm(PaginationRequest request)
         {
             ViewBag.First = request.Offset == 0;
-            
+
             if (request.Count > 20)
             {
                 request.Count = 20;
             }
-            
+
             var clients = await Manager.GetClientService().GetRecentClients(request);
 
             return request.Offset == 0
                 ? View("~/Views/Shared/Components/Client/_RecentClientsContainer.cshtml", clients)
                 : View("~/Views/Shared/Components/Client/_RecentClients.cshtml", clients);
         }
-        
+
         public IActionResult RecentReportsForm()
         {
             var serverInfo = Manager.GetServers().Select(server =>
                 new ServerInfo
                 {
                     Name = server.Hostname,
-                    Reports = server.Reports.Where(report => (DateTime.UtcNow - report.ReportedOn).TotalHours <= 24).ToList()
+                    Reports = server.Reports.Where(report => (DateTime.UtcNow - report.ReportedOn).TotalHours <= 24)
+                        .ToList()
                 });
 
             return View("Partials/_Reports", serverInfo);
@@ -473,6 +478,105 @@ namespace WebfrontCore.Controllers
             }));
         }
 
+        public IActionResult DismissAlertForm(Guid id)
+        {
+            var info = new ActionInfo
+            {
+                ActionButtonLabel = "Dismiss",
+                Name = "Dismiss Alert?",
+                Inputs = new List<InputInfo>
+                {
+                    new()
+                    {
+                        Name = "alertId",
+                        Type = "hidden",
+                        Value = id.ToString()
+                    }
+                },
+                Action = nameof(DismissAlert),
+                ShouldRefresh = true
+            };
+
+            return View("_ActionForm", info);
+        }
+
+        public IActionResult DismissAlert(Guid alertId)
+        {
+            AlertManager.MarkAlertAsRead(alertId);
+            return Json(new[]
+            {
+                new CommandResponseInfo
+                {
+                    Response = "Alert dismissed"
+                }
+            });
+        }
+
+        public IActionResult DismissAllAlertsForm()
+        {
+            var info = new ActionInfo
+            {
+                ActionButtonLabel = "Dismiss",
+                Name = "Dismiss All Alerts?",
+                Inputs = new List<InputInfo>
+                {
+                    new()
+                    {
+                        Name = "targetId",
+                        Type = "hidden",
+                        Value = Client.ClientId.ToString()
+                    }
+                },
+                Action = nameof(DismissAllAlerts),
+                ShouldRefresh = true
+            };
+
+            return View("_ActionForm", info);
+        }
+
+        public IActionResult DismissAllAlerts(int targetId)
+        {
+            AlertManager.MarkAllAlertsAsRead(targetId);
+            return Json(new[]
+            {
+                new CommandResponseInfo
+                {
+                    Response = "Alerts dismissed"
+                }
+            });
+        }
+
+        public IActionResult OfflineMessageForm()
+        {
+            var info = new ActionInfo
+            {
+                ActionButtonLabel = "Send",
+                Name = "Compose Message",
+                Inputs = new List<InputInfo>
+                {
+                    new()
+                    {
+                        Name = "message",
+                        Label = "Message Content",
+                    },
+                },
+                Action = "OfflineMessage",
+                ShouldRefresh = true
+            };
+            return View("_ActionForm", info);
+        }
+
+        public async Task<IActionResult> OfflineMessage(int targetId, string message)
+        {
+            var server = Manager.GetServers().First();
+            return await Task.FromResult(RedirectToAction("Execute", "Console", new
+            {
+                serverId = server.EndPoint,
+                command =
+                    $"{_appConfig.CommandPrefix}{_offlineMessageCommandName} @{targetId} {message.CapClientName(500)}"
+            }));
+        }
+
         private Dictionary<string, string> GetPresetPenaltyReasons() => _appConfig.PresetPenaltyReasons.Values
             .Concat(_appConfig.GlobalRules)
             .Concat(_appConfig.Servers.SelectMany(server => server.Rules ?? Array.Empty<string>()))

WebfrontCore/Views/Action/_ActionForm.cshtml

@@ -4,7 +4,7 @@
     Layout = null;
 }
 <h5 class="modal-title mb-10">@Model.Name.Titleize()</h5>
-@if (Model.Inputs.Any())
+@if (Model.Inputs.Any(input => input.Type != "hidden"))
 {
     <hr class="mb-10"/>
 }
@@ -55,12 +55,12 @@
             <input type="@inputType" name="@input.Name" value="@value" hidden="hidden">
         }
     }
-    @if (Model.Inputs.Any())
+    @if (Model.Inputs.Any(input => input.Type != "hidden"))
     {
         <hr class="mb-10"/>
     }
     <div class="ml-auto">
         <button type="submit" class="btn btn-primary">@Model.ActionButtonLabel</button>
-        <a href="#" class="btn mr-5" role="button" onclick="halfmoon.toggleModal('actionModal');">Close</a>
+        <a href="#" class="btn mr-5 ml-5" role="button" onclick="halfmoon.toggleModal('actionModal');">Close</a>
     </div>
 </form>

WebfrontCore/Views/Client/Profile/Index.cshtml

@@ -279,6 +279,18 @@
             EntityId = Model.ClientId
         });
     }
+    
+    if (ViewBag.Authorized)
+    {
+        menuItems.Items.Add(new SideContextMenuItem
+        {
+            Title = "Message",
+            IsButton = true,
+            Reference = "OfflineMessage",
+            Icon = "oi oi-envelope-closed",
+            EntityId = Model.ClientId
+        });
+    }
 
     menuItems.Items.Add(new SideContextMenuItem
     {
@@ -336,6 +348,7 @@
             EntityId = Model.ClientId
         });
     }
+
 }
 <partial name="_SideContextMenu" for="@menuItems"></partial>
 

WebfrontCore/Views/Shared/Partials/_Notifications.cshtml

@@ -0,0 +1,65 @@
+@using SharedLibraryCore.Alerts
+@using Humanizer
+@model IEnumerable<SharedLibraryCore.Alerts.Alert.AlertState>
+@{
+    Layout = null;
+}
+<div class="dropdown with-arrow" data-toggle="dropdown" id="alert-toggle" aria-haspopup="true" aria-expanded="false">
+    <div data-toggle="tooltip" data-title="@(Model.Any() ? "View Alerts" : "No Alerts")" data-placement="bottom">
+        <i class="oi oi-bell mt-5"></i>
+    </div>
+    @if (Model.Any())
+    {
+        <div class="position-absolute bg-danger rounded-circle ml-10" style="width: 0.5em;height: 0.5em;top: 0;"></div>
+        <div class="dropdown-menu dropdown-menu-right w-400" aria-labelledby="alert-toggle">
+            <div class="d-flex">
+                <h6 class="dropdown-header">@ViewBag.Alerts.Count Alerts</h6>
+                <i class="oi oi-circle-x font-size-12 ml-auto mr-10 text-danger align-self-center profile-action" data-action="DismissAllAlerts" data-action-id="@ViewBag.User.ClientId"></i>
+
+            </div>
+            <div class="dropdown-divider"></div>
+            @foreach (var alert in Model)
+            {
+                <div class="d-flex p-5 pl-10 pr-10">
+                    <div class="align-self-center">
+                        @if (alert.Category == Alert.AlertCategory.Error)
+                        {
+                            <i class="oi oi-warning text-danger font-size-12 mr-5"></i>
+                        }
+                        @if (alert.Category == Alert.AlertCategory.Warning)
+                        {
+                            <i class="oi oi-warning text-secondary font-size-12 mr-5"></i>
+                        }
+                        @if (alert.Category == Alert.AlertCategory.Information)
+                        {
+                            <i class="oi oi-circle-check font-size-12 mr-5 text-primary"></i>
+                        }
+                        @if (alert.Category == Alert.AlertCategory.Message)
+                        {
+                            <i class="oi oi-envelope-closed font-size-12 mr-5 text-primary"></i>
+                        }
+                    </div>
+                    <div class="font-size-12 p-5">
+                        <span>@alert.Message</span>
+                        <div class="text-muted d-flex">
+                            <span>@alert.OccuredAt.Humanize()</span>
+                            @if (!string.IsNullOrEmpty(alert.Source))
+                            {
+                                <span class="ml-5 mr-5">&#8226;</span>
+                                @if (alert.SourceId is null)
+                                {
+                                    <div class="text-white font-weight-light">@alert.Source.StripColors()</div>
+                                }
+                                else
+                                {
+                                    <a asp-controller="Client" asp-action="Profile" asp-route-id="@alert.SourceId" class="no-decoration">@alert.Source</a>
+                                }
+                            }
+                        </div>
+                    </div>
+                    <i class="oi oi-circle-x font-size-12 ml-auto align-self-center profile-action" data-action="DismissAlert" data-action-id="@alert.AlertId"></i>
+                </div>
+            }
+        </div>
+    }
+</div>

WebfrontCore/Views/Shared/_Layout.cshtml

@@ -119,11 +119,13 @@
         </div>
 
         <div class="d-flex ml-auto">
+            <div class="align-self-center">
+                @await Html.PartialAsync("Partials/_Notifications", (object)ViewBag.Alerts)
+            </div>
             <div class="btn btn-action mr-10 ml-10" onclick="halfmoon.toggleDarkMode()" data-toggle="tooltip" data-title="Toggle display mode" data-placement="bottom">
                 <i class="oi oi-moon"></i>
             </div>
             <div class="d-none d-md-block ">
-
                 <partial name="_SearchResourceForm"/>
             </div>
             <div class="d-flex d-lg-none">