feat: Add admin user option

Author: alex289

DockerDiscordBot/Program.cs

@@ -38,10 +38,10 @@ private static IServiceCollection ConfigureServices(IServiceCollection services)
             .AddOptions<ApplicationSettings>()
             .Bind(_configuration.GetSection("ApplicationSettings"))
             .Validate(x =>
-                    !string.IsNullOrWhiteSpace(x.DiscordToken),
+                !string.IsNullOrWhiteSpace(x.DiscordToken),
                 "Discord token is required.")
             .Validate(x =>
-                    !string.IsNullOrWhiteSpace(x.DockerHost),
+                !string.IsNullOrWhiteSpace(x.DockerHost),
                 "Docker host is required.")
             .ValidateOnStart();
 

DockerDiscordBot/Services/DiscordService.cs

@@ -14,7 +14,7 @@ public sealed class DiscordService : IDiscordService
     private readonly IMediator _bus;
     private readonly DiscordSocketClient _client;
     private readonly ILogger<DiscordService> _logger;
-    private readonly string _token;
+    private readonly ApplicationSettings _options;
 
     public DiscordService(
         DiscordSocketClient client,
@@ -24,7 +24,7 @@ public DiscordService(
         _client = client;
         _logger = logger;
         _bus = bus;
-        _token = options.Value.DiscordToken;
+        _options = options.Value;
     }
 
     public async Task StartAsync()
@@ -33,7 +33,7 @@ public async Task StartAsync()
         _client.Ready += ReadyAsync;
         _client.MessageReceived += MessageReceivedAsync;
 
-        await _client.LoginAsync(TokenType.Bot, _token);
+        await _client.LoginAsync(TokenType.Bot, _options.DiscordToken);
         await _client.StartAsync();
     }
 
@@ -50,12 +50,19 @@ private async Task MessageReceivedAsync(SocketMessage message)
         {
             return;
         }
-
+        
         var command = message.GetCommand();
 
         if (command is null)
         {
-            _logger.LogWarning("Unhandled command: {Command}", message.Content);
+            _logger.LogDebug("Command not found: {Message}", message.Content);
+            return;
+        }
+        
+        if (!string.IsNullOrWhiteSpace(_options.AdminUser) && message.Author.Username != _options.AdminUser)
+        {
+            _logger.LogDebug("Unauthorized user: {User}", message.Author.Username);
+            await message.Channel.SendMessageAsync("You are not authorized to use this bot.");
             return;
         }
 

DockerDiscordBot/Settings/ApplicationSettings.cs

@@ -4,4 +4,5 @@ public sealed class ApplicationSettings
 {
     public required string DiscordToken { get; init; }
     public required string DockerHost { get; init; }
+    public string AdminUser { get; init; } = string.Empty;
 }

DockerDiscordBot/appsettings.json

@@ -15,6 +15,7 @@
   },
   "ApplicationSettings": {
     "DiscordToken": "",
-    "DockerHost": "unix:///var/run/docker.sock"
+    "DockerHost": "unix:///var/run/docker.sock",
+    "AdminUser": ""
   }
 }

README.md

@@ -5,6 +5,15 @@
 
 An easy-to-use Discord bot to manage your Docker containers.
 
+## Table of Contents
+
+- [Commands](#commands)
+- [Installation](#installation)
+  - [Discord Bot Setup](#discord-bot-setup)
+  - [Docker Setup](#docker-setup)
+  - [Configuration](#configuration)
+- [License](#license)
+
 ## Commands
 
 | Command | Description |
@@ -59,6 +68,17 @@ services:
       - /var/run/docker.sock:/var/run/docker.sock
 ```
 
+### Configuration
+
+The bot can be configured using environment variables:
+
+| Environment Variable | Description | Default Value | Required |
+| --- | --- | --- | --- |
+| `ApplicationSettings__DiscordToken` | Discord bot token | `null` | ✅ |
+| `ApplicationSettings__AdminUser` | Discord admin username | `null` | ✅ |
+| `ApplicationSettings__CommandPrefix` | Command prefix | `!` | ❌ |
+| `ApplicationSettings__EmbedColor` | Embed color | `#7289DA` | ❌ |
+
 ## License
 
 © [Alexander Konietzko](https://alexanderkonietzko.com) 2024