Added new permissions system, fixed more commands and module bugs.

src/Discord.Net.Commands.Net45/Discord.Net.Commands.csproj

@@ -61,6 +61,39 @@
     <Compile Include="..\Discord.Net.Commands\CommandServiceConfig.cs">
       <Link>CommandServiceConfig.cs</Link>
     </Compile>
+    <Compile Include="..\Discord.Net.Commands\Permissions\IPermissionChecker.cs">
+      <Link>Permissions\IPermissionChecker.cs</Link>
+    </Compile>
+    <Compile Include="..\Discord.Net.Commands\Permissions\Levels\PermissionLevelChecker.cs">
+      <Link>Permissions\Levels\PermissionLevelChecker.cs</Link>
+    </Compile>
+    <Compile Include="..\Discord.Net.Commands\Permissions\Levels\PermissionLevelExtensions.cs">
+      <Link>Permissions\Levels\PermissionLevelExtensions.cs</Link>
+    </Compile>
+    <Compile Include="..\Discord.Net.Commands\Permissions\Levels\PermissionLevelService.cs">
+      <Link>Permissions\Levels\PermissionLevelService.cs</Link>
+    </Compile>
+    <Compile Include="..\Discord.Net.Commands\Permissions\Userlist\BlacklistChecker.cs">
+      <Link>Permissions\Userlist\BlacklistChecker.cs</Link>
+    </Compile>
+    <Compile Include="..\Discord.Net.Commands\Permissions\Userlist\BlacklistExtensions.cs">
+      <Link>Permissions\Userlist\BlacklistExtensions.cs</Link>
+    </Compile>
+    <Compile Include="..\Discord.Net.Commands\Permissions\Userlist\BlacklistService.cs">
+      <Link>Permissions\Userlist\BlacklistService.cs</Link>
+    </Compile>
+    <Compile Include="..\Discord.Net.Commands\Permissions\Userlist\UserlistService.cs">
+      <Link>Permissions\Userlist\UserlistService.cs</Link>
+    </Compile>
+    <Compile Include="..\Discord.Net.Commands\Permissions\Userlist\WhitelistChecker.cs">
+      <Link>Permissions\Userlist\WhitelistChecker.cs</Link>
+    </Compile>
+    <Compile Include="..\Discord.Net.Commands\Permissions\Userlist\WhitelistExtensions.cs">
+      <Link>Permissions\Userlist\WhitelistExtensions.cs</Link>
+    </Compile>
+    <Compile Include="..\Discord.Net.Commands\Permissions\Userlist\WhitelistService.cs">
+      <Link>Permissions\Userlist\WhitelistService.cs</Link>
+    </Compile>
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>

src/Discord.Net.Commands/Command.cs

@@ -1,4 +1,5 @@
-using System;
+using Discord.Commands.Permissions;
+using System;
 using System.Collections.Generic;
 using System.Threading.Tasks;
 
@@ -41,8 +42,9 @@ namespace Discord.Commands
 
 		public IEnumerable<CommandParameter> Parameters => _parameters;
 		internal CommandParameter[] _parameters;
-
+		
-		private Func<CommandEventArgs, Task> _handler;
+		private IPermissionChecker[] _checks;
+		private Func<CommandEventArgs, Task> _runFunc;
 
 		internal Command(string text)
 		{
@@ -56,7 +58,6 @@ namespace Discord.Commands
 		{
 			_aliases = aliases;
 		}
-
 		internal void SetParameters(CommandParameter[] parameters)
 		{
 			_parameters = parameters;
@@ -89,24 +90,32 @@ namespace Discord.Commands
 				}
 			}
 		}
-
+		internal void SetChecks(IPermissionChecker[] checks)
-		internal void SetHandler(Func<CommandEventArgs, Task> func)
 		{
-			_handler = func;
+			_checks = checks;
-		}
-		internal void SetHandler(Action<CommandEventArgs> func)
-		{
-			_handler = e => { func(e); return TaskHelper.CompletedTask; };
 		}
 
 		internal bool CanRun(User user, Channel channel)
 		{
+			for (int i = 0; i < _checks.Length; i++)
+			{
+				if (!_checks[i].CanRun(this, user, channel))
+                    return false;
+			}
 			return true;
 		}
 
+		internal void SetRunFunc(Func<CommandEventArgs, Task> func)
+		{
+			_runFunc = func;
+		}
+		internal void SetRunFunc(Action<CommandEventArgs> func)
+		{
+			_runFunc = e => { func(e); return TaskHelper.CompletedTask; };
+		}
 		internal Task Run(CommandEventArgs args)
 		{
-			var task = _handler(args);
+			var task = _runFunc(args);
 			if (task != null)
 				return task;
 			else

src/Discord.Net.Commands/CommandBuilder.cs

@@ -1,4 +1,5 @@
-using System;
+using Discord.Commands.Permissions;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
@@ -9,19 +10,27 @@ namespace Discord.Commands
 	{
 		private readonly CommandService _service;
 		private readonly Command _command;
-		private List<CommandParameter> _params;
+		private readonly List<CommandParameter> _params;
-		private bool _allowRequired, _isClosed;
+		private readonly List<IPermissionChecker> _checks;
-		private string _prefix;
+		private readonly string _prefix;
+		private bool _allowRequiredParams, _areParamsClosed;
 
-		internal CommandBuilder(CommandService service, Command command, string prefix, string category)
+		public CommandService Service => _service;
+
+		internal CommandBuilder(CommandService service, Command command, string prefix = "", string category = "", IEnumerable<IPermissionChecker> initialChecks = null)
 		{
 			_service = service;
 			_command = command;
 			_command.Category = category;
 			_params = new List<CommandParameter>();
+			if (initialChecks != null)
+				_checks = new List<IPermissionChecker>(initialChecks);
+			else
+				_checks = new List<IPermissionChecker>();
 			_prefix = prefix;
-			_allowRequired = true;
+
-			_isClosed = false;
+			_allowRequiredParams = true;
+			_areParamsClosed = false;
         }
 
 		public CommandBuilder Alias(params string[] aliases)
@@ -35,24 +44,24 @@ namespace Discord.Commands
 			_command.Category = category;
 			return this;
         }*/
-		public CommandBuilder Info(string description)
+		public CommandBuilder Description(string description)
 		{
 			_command.Description = description;
 			return this;
 		}
 		public CommandBuilder Parameter(string name, ParameterType type = ParameterType.Required)
 		{
-			if (_isClosed)
+			if (_areParamsClosed)
 				throw new Exception($"No parameters may be added after a {nameof(ParameterType.Multiple)} or {nameof(ParameterType.Unparsed)} parameter.");
-			if (!_allowRequired && type == ParameterType.Required)
+			if (!_allowRequiredParams && type == ParameterType.Required)
 				throw new Exception($"{nameof(ParameterType.Required)} parameters may not be added after an optional one");
 
 			_params.Add(new CommandParameter(name, type));
 
 			if (type == ParameterType.Optional)
-				_allowRequired = false;
+				_allowRequiredParams = false;
             if (type == ParameterType.Multiple || type == ParameterType.Unparsed)
-				_isClosed = true;
+				_areParamsClosed = true;
 			return this;
 		}
 		public CommandBuilder Hide()
@@ -60,20 +69,26 @@ namespace Discord.Commands
 			_command.IsHidden = true;
 			return this;
 		}
+		public CommandBuilder AddCheck(IPermissionChecker check)
+		{
+			_checks.Add(check);
+			return this;
+		}
 
 		public void Do(Func<CommandEventArgs, Task> func)
 		{
-			_command.SetHandler(func);
+			_command.SetRunFunc(func);
 			Build();
 		}
 		public void Do(Action<CommandEventArgs> func)
 		{
-			_command.SetHandler(func);
+			_command.SetRunFunc(func);
 			Build();
 		}
 		private void Build()
 		{
 			_command.SetParameters(_params.ToArray());
+			_command.SetChecks(_checks.ToArray());
             _service.AddCommand(_command);
 		}
 
@@ -97,14 +112,21 @@ namespace Discord.Commands
 	}
 	public sealed class CommandGroupBuilder
 	{
-		internal readonly CommandService _service;
+		private readonly CommandService _service;
 		private readonly string _prefix;
+		private readonly List<IPermissionChecker> _checks;
 		private string _category;
 
-		internal CommandGroupBuilder(CommandService service, string prefix)
+		public CommandService Service => _service;
+
+		internal CommandGroupBuilder(CommandService service, string prefix, IEnumerable<IPermissionChecker> initialChecks = null)
 		{
 			_service = service;
 			_prefix = prefix;
+			if (initialChecks != null)
+				_checks = new List<IPermissionChecker>(initialChecks);
+			else
+				_checks = new List<IPermissionChecker>();
 		}
 
 		public CommandGroupBuilder Category(string category)
@@ -112,10 +134,14 @@ namespace Discord.Commands
 			_category = category;
 			return this;
 		}
+		public void AddCheck(IPermissionChecker check)
+		{
+			_checks.Add(check);
+		}
 
 		public CommandGroupBuilder CreateGroup(string cmd, Action<CommandGroupBuilder> config = null)
-		{
+		{			
-			config(new CommandGroupBuilder(_service, _prefix + ' ' + cmd));
+			config(new CommandGroupBuilder(_service, CommandBuilder.AppendPrefix(_prefix, cmd), _checks));
 			return this;
 		}
 		public CommandBuilder CreateCommand()
@@ -123,7 +149,7 @@ namespace Discord.Commands
         public CommandBuilder CreateCommand(string cmd)
 		{
             var command = new Command(CommandBuilder.AppendPrefix(_prefix, cmd));
-            return new CommandBuilder(_service, command, _prefix, _category);
+            return new CommandBuilder(_service, command, _prefix, _category, _checks);
 		}
 	}
 }

src/Discord.Net.Commands/CommandMap.cs

@@ -7,24 +7,26 @@ namespace Discord.Commands
 	internal class CommandMap
 	{
 		private readonly CommandMap _parent;
-		private readonly string _text;
+		private readonly string _name, _fullName;
 
 		private Command _command;
 		private readonly Dictionary<string, CommandMap> _items;
 		private bool _isHidden;
 
-		public string Text => _text;
+		public string Name => _name;
+		public string FullName => _fullName;
 		public bool IsHidden => _isHidden;
 		public Command Command => _command;
 		public IEnumerable<CommandMap> SubGroups => _items.Values;
 		/*public IEnumerable<Command> SubCommands => _items.Select(x => x.Value._command).Where(x => x != null);
 		public IEnumerable<CommandMap> SubGroups => _items.Select(x => x.Value).Where(x => x._items.Count > 0);*/
 
-		public CommandMap(CommandMap parent, string text)
+		public CommandMap(CommandMap parent, string name, string fullName)
 		{
 			_parent = parent;
-			_text = text;
+			_name = name;
-			_items = new Dictionary<string, CommandMap>();
+			_fullName = fullName;
+            _items = new Dictionary<string, CommandMap>();
 			_isHidden = true;
         }
 		
@@ -82,19 +84,20 @@ namespace Discord.Commands
 		{
 			AddCommand(0, text.Split(' '), command);
 		}
-		public void AddCommand(int index, string[] parts, Command command)
+		private void AddCommand(int index, string[] parts, Command command)
 		{
 			if (!command.IsHidden && _isHidden)
 				_isHidden = false;
 
 			if (index != parts.Length)
 			{
-				string nextPart = parts[index];
 				CommandMap nextGroup;
-				if (!_items.TryGetValue(nextPart, out nextGroup))
+				string name = parts[index];
+				string fullName = string.Join(" ", parts, 0, index + 1);
+                if (!_items.TryGetValue(name, out nextGroup))
 				{
-					nextGroup = new CommandMap(this, nextPart);
+					nextGroup = new CommandMap(this, name, fullName);
-					_items.Add(nextPart, nextGroup);
+					_items.Add(name, nextGroup);
 				}
 				nextGroup.AddCommand(index + 1, parts, command);
             }

src/Discord.Net.Commands/CommandService.cs

@@ -9,8 +9,12 @@ namespace Discord.Commands
 	/// <summary> A Discord.Net client with extensions for handling common bot operations like text commands. </summary>
 	public partial class CommandService : IService
     {
+		private readonly CommandServiceConfig _config;
+		private readonly CommandGroupBuilder _root;
 		private DiscordClient _client;
-		public CommandServiceConfig Config { get; }
+
+		public DiscordClient Client => _client;
+		public CommandGroupBuilder Root => _root;
 
 		//AllCommands store a flattened collection of all commands
 		public IEnumerable<Command> AllCommands => _allCommands;
@@ -23,40 +27,47 @@ namespace Discord.Commands
 		internal IEnumerable<CommandMap> Categories => _categories.Values;
         private readonly Dictionary<string, CommandMap> _categories;
 
-
 		public CommandService(CommandServiceConfig config)
 		{
-			Config = config;
+			_config = config;
 			_allCommands = new List<Command>();
-			_map = new CommandMap(null, null);
+			_map = new CommandMap(null, "", "");
 			_categories = new Dictionary<string, CommandMap>();
-        }
+			_root = new CommandGroupBuilder(this, "", null);
+		}
 
 		void IService.Install(DiscordClient client)
 		{
 			_client = client;
-			Config.Lock();
+			_config.Lock();
 
-			if (Config.HelpMode != HelpMode.Disable)
+			if (_config.HelpMode != HelpMode.Disable)
             {
-                CreateCommand("help")
+				CreateCommand("help")
 					.Parameter("command", ParameterType.Multiple)
                     .Hide()
-                    .Info("Returns information about commands.")
+                    .Description("Returns information about commands.")
-                    .Do(async e =>
+                    .Do((Func<CommandEventArgs, Task>)(async e =>
                     {
-						Channel channel = Config.HelpMode == HelpMode.Public ? e.Channel : await client.CreatePMChannel(e.User);
+						Channel replyChannel = _config.HelpMode == HelpMode.Public ? e.Channel : await client.CreatePMChannel(e.User);
 						if (e.Args.Length > 0) //Show command help
 						{
 							var map = _map.GetItem(string.Join(" ", e.Args));
 							if (map != null)
-								await ShowHelp(map, e.User, channel);
+								await ShowCommandHelp(map, e.User, e.Channel, replyChannel);
 							else
-								await client.SendMessage(channel, "Unable to display help: Unknown command.");
+								await client.SendMessage(replyChannel, "Unable to display help: Unknown command.");
 						}
                         else //Show general help
-							await ShowHelp(e.User, channel);
+
-                    });
+/* Unmerged change from project 'Discord.Net.Commands'
+Before:
+							await ShowHelp(e.User, e.Channel, replyChannel);
+After:
+							await this.ShowHelp((User)e.User, e.Channel, replyChannel);
+*/
+							await this.ShowGeneralHelp(e.User, (Channel)e.Channel, (Channel)replyChannel);
+                    }));
             }
 
             client.MessageReceived += async (s, e) =>
@@ -68,7 +79,7 @@ namespace Discord.Commands
                 if (msg.Length == 0) return;
 
 				//Check for command char if one is provided
-				var chars = Config.CommandChars;
+				var chars = _config.CommandChars;
                 if (chars.Length > 0)
                 {
 					if (!chars.Contains(msg[0]))
@@ -121,7 +132,7 @@ namespace Discord.Commands
             };
         }
 
-        public Task ShowHelp(User user, Channel channel)
+        public Task ShowGeneralHelp(User user, Channel channel, Channel replyChannel = null)
         {
             StringBuilder output = new StringBuilder();
 			/*output.AppendLine("These are the commands you can use:");
@@ -163,7 +174,7 @@ namespace Discord.Commands
 						else
 							output.Append(", ");
 						output.Append('`');
-						output.Append(group.Text);
+						output.Append(group.Name);
 						if (group.SubGroups.Any())
 							output.Append("*");
 						output.Append('`');
@@ -177,7 +188,7 @@ namespace Discord.Commands
 			{
 				output.Append("\n\n");
 
-				var chars = Config.CommandChars;
+				var chars = _config.CommandChars;
 				if (chars.Length > 0)
 				{
 					if (chars.Length == 1)
@@ -190,20 +201,20 @@ namespace Discord.Commands
 					output.AppendLine($"`help <command>` can tell you more about how to use a command.");
 			}
 
-            return _client.SendMessage(channel, output.ToString());
+            return _client.SendMessage(replyChannel ?? channel, output.ToString());
         }
 
-		private Task ShowHelp(CommandMap map, User user, Channel channel)
+		private Task ShowCommandHelp(CommandMap map, User user, Channel channel, Channel replyChannel = null)
         {
 			StringBuilder output = new StringBuilder();
 
 			Command cmd = map.Command;
 			if (cmd != null)
-				ShowHelpInternal(cmd, user, channel, output);
+				ShowCommandHelpInternal(cmd, user, channel, output);
 			else
 			{
 				output.Append('`');
-				output.Append(map.Text);
+				output.Append(map.FullName);
 				output.Append("`\n");
 			}
 
@@ -218,21 +229,21 @@ namespace Discord.Commands
 				else
 					output.Append(", ");
 				output.Append('`');
-				output.Append(subCmd.Text);
+				output.Append(subCmd.Name);
 				if (subCmd.SubGroups.Any())
 					output.Append("*");
 				output.Append('`');
 			}
 
-			return _client.SendMessage(channel, output.ToString());
+			return _client.SendMessage(replyChannel ?? channel, output.ToString());
 		}
-		public Task ShowHelp(Command command, User user, Channel channel)
+		public Task ShowCommandHelp(Command command, User user, Channel channel, Channel replyChannel = null)
 		{
 			StringBuilder output = new StringBuilder();
-			ShowHelpInternal(command, user, channel, output);
+			ShowCommandHelpInternal(command, user, channel, output);
-            return _client.SendMessage(channel, output.ToString());
+            return _client.SendMessage(replyChannel ?? channel, output.ToString());
 		}
-		private void ShowHelpInternal(Command command, User user, Channel channel, StringBuilder output)
+		private void ShowCommandHelpInternal(Command command, User user, Channel channel, StringBuilder output)
 		{
 			output.Append('`');
 			output.Append(command.Text);
@@ -261,17 +272,8 @@ namespace Discord.Commands
 				output.AppendLine($"Aliases: `" + string.Join("`, `", command.Aliases) + '`');
         }
 
-		public void CreateGroup(string cmd, Action<CommandGroupBuilder> config = null)
+		public void CreateGroup(string cmd, Action<CommandGroupBuilder> config = null) => _root.CreateGroup(cmd, config);
-		{
+		public CommandBuilder CreateCommand(string cmd) => _root.CreateCommand(cmd);
-			var builder = new CommandGroupBuilder(this, cmd);
-            if (config != null)
-				config(builder);
-		}
-		public CommandBuilder CreateCommand(string cmd)
-		{
-			var command = new Command(cmd);
-			return new CommandBuilder(this, command, "", "");
-		}
 
 		internal void AddCommand(Command command)
 		{
@@ -282,7 +284,7 @@ namespace Discord.Commands
             string categoryName = command.Category ?? "";
 			if (!_categories.TryGetValue(categoryName, out category))
 			{
-				category = new CommandMap(null, "");
+				category = new CommandMap(null, "", "");
 				_categories.Add(categoryName, category);
 			}
 

src/Discord.Net.Commands/CommandServiceConfig.cs

@@ -1,4 +1,5 @@
-using System;
+using Discord.Commands.Permissions;
+using System;
 
 namespace Discord.Commands
 {
@@ -13,9 +14,6 @@ namespace Discord.Commands
 	}
 	public class CommandServiceConfig
 	{
-		/*public Func<User, int> PermissionResolver { get { return _permissionsResolver; } set { SetValue(ref _permissionsResolver, value); } }
-        private Func<User, int> _permissionsResolver;*/
-
 		public char? CommandChar
 		{
 			get

src/Discord.Net.Commands/Discord.Net.Commands.xproj

@@ -7,7 +7,7 @@
   <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" Condition="'$(VSToolsPath)' != ''" />
   <PropertyGroup Label="Globals">
     <ProjectGuid>19793545-ef89-48f4-8100-3ebaad0a9141</ProjectGuid>
-    <RootNamespace>Discord</RootNamespace>
+    <RootNamespace>Discord.Commands</RootNamespace>
     <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
     <OutputPath Condition="'$(OutputPath)'=='' ">..\..\artifacts\bin\$(MSBuildProjectName)\</OutputPath>
   </PropertyGroup>

src/Discord.Net.Commands/Permissions/IPermissionChecker.cs

@@ -0,0 +1,7 @@
+namespace Discord.Commands.Permissions
+{
+    public interface IPermissionChecker
+    {
+		bool CanRun(Command command, User user, Channel channel);
+    }
+}

src/Discord.Net.Commands/Permissions/Levels/PermissionLevelChecker.cs

@@ -0,0 +1,27 @@
+using System;
+
+namespace Discord.Commands.Permissions.Levels
+{
+	public class PermissionLevelChecker : IPermissionChecker
+	{
+		private readonly PermissionLevelService _service;
+		private readonly int _minPermissions;
+
+		public PermissionLevelService Service => _service;
+		public int MinPermissions => _minPermissions;
+
+		internal PermissionLevelChecker(DiscordClient client, int minPermissions)
+		{
+			_service = client.GetService<PermissionLevelService>();
+			_minPermissions = minPermissions;
+            if (_service == null)
+				throw new InvalidOperationException($"{nameof(PermissionLevelService)} must be added to {nameof(DiscordClient)} before this function is called.");
+        }
+
+		public bool CanRun(Command command, User user, Channel channel)
+		{
+			int permissions = _service.GetPermissionLevel(user, channel);
+			return permissions >= _minPermissions;
+		}
+	}
+}

src/Discord.Net.Commands/Permissions/Levels/PermissionLevelExtensions.cs

@@ -0,0 +1,21 @@
+namespace Discord.Commands.Permissions.Levels
+{
+    public static class PermissionLevelExtensions
+    {
+		public static CommandBuilder MinPermissions(this CommandBuilder builder, int minPermissions)
+		{
+			builder.AddCheck(new PermissionLevelChecker(builder.Service.Client, minPermissions));
+            return builder;
+		}
+		public static CommandGroupBuilder MinPermissions(this CommandGroupBuilder builder, int minPermissions)
+		{
+			builder.AddCheck(new PermissionLevelChecker(builder.Service.Client, minPermissions));
+			return builder;
+		}
+		public static CommandService MinPermissions(this CommandService service, int minPermissions)
+		{
+			service.Root.AddCheck(new PermissionLevelChecker(service.Client, minPermissions));
+			return service;
+		}
+	}
+}

src/Discord.Net.Commands/Permissions/Levels/PermissionLevelService.cs

@@ -0,0 +1,23 @@
+using System;
+
+namespace Discord.Commands.Permissions.Levels
+{
+	public class PermissionLevelService : IService
+	{
+		private readonly Func<User, Channel, int> _getPermissionsFunc;
+
+		private DiscordClient _client;
+		public DiscordClient Client => _client;
+
+		public PermissionLevelService(Func<User, Channel, int> getPermissionsFunc)
+		{
+			_getPermissionsFunc = getPermissionsFunc;
+        }
+
+		public void Install(DiscordClient client)
+		{
+			_client = client;
+		}
+		public int GetPermissionLevel(User user, Channel channel) => _getPermissionsFunc(user, channel);
+	}
+}

src/Discord.Net.Commands/Permissions/Userlist/BlacklistChecker.cs

@@ -0,0 +1,21 @@
+using System;
+
+namespace Discord.Commands.Permissions.Userlist
+{
+    public class BlacklistChecker : IPermissionChecker
+	{
+		private readonly BlacklistService _service;
+
+		internal BlacklistChecker(DiscordClient client)
+		{
+			_service = client.GetService<BlacklistService>();
+			if (_service == null)
+				throw new InvalidOperationException($"{nameof(BlacklistService)} must be added to {nameof(DiscordClient)} before this function is called.");
+		}
+
+		public bool CanRun(Command command, User user, Channel channel)
+		{
+			return _service.CanRun(user);
+		}
+	}
+}

src/Discord.Net.Commands/Permissions/Userlist/BlacklistExtensions.cs

@@ -0,0 +1,21 @@
+namespace Discord.Commands.Permissions.Userlist
+{
+    public static class BlacklistExtensions
+	{
+		public static CommandBuilder UseGlobalBlacklist(this CommandBuilder builder)
+		{
+			builder.AddCheck(new BlacklistChecker(builder.Service.Client));
+			return builder;
+		}
+		public static CommandGroupBuilder UseGlobalBlacklist(this CommandGroupBuilder builder)
+		{
+			builder.AddCheck(new BlacklistChecker(builder.Service.Client));
+			return builder;
+		}
+		public static CommandService UseGlobalBlacklist(this CommandService service)
+		{
+			service.Root.AddCheck(new BlacklistChecker(service.Client));
+			return service;
+		}
+	}
+}

src/Discord.Net.Commands/Permissions/Userlist/BlacklistService.cs

@@ -0,0 +1,17 @@
+using System.Collections.Generic;
+
+namespace Discord.Commands.Permissions.Userlist
+{
+    public class BlacklistService : UserlistService
+	{
+		public BlacklistService(IEnumerable<string> initialList = null)
+			: base(initialList)
+		{
+		}
+
+        public bool CanRun(User user)
+		{
+			return !_userList.ContainsKey(user.Id);
+		}
+	}
+}

src/Discord.Net.Commands/Permissions/Userlist/UserlistService.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Discord.Commands.Permissions.Userlist
+{
+    public class UserlistService : IService
+	{
+		protected readonly ConcurrentDictionary<string, bool> _userList;
+		private DiscordClient _client;
+
+		public DiscordClient Client => _client;
+		public IEnumerable<string> UserIds => _userList.Select(x => x.Key);
+
+		public UserlistService(IEnumerable<string> initialList = null)
+		{
+			if (initialList != null)
+				_userList = new ConcurrentDictionary<string, bool>(initialList.Select(x => new KeyValuePair<string, bool>(x, true)));
+			else
+				_userList = new ConcurrentDictionary<string, bool>();
+		}
+
+		public void Add(User user)
+		{
+			if (user == null) throw new ArgumentNullException(nameof(user));
+			_userList[user.Id] = true;
+		}
+		public void Add(string userId)
+		{
+			if (userId == null) throw new ArgumentNullException(nameof(userId));
+			_userList[userId] = true;
+		}
+		public bool Remove(User user)
+		{
+			if (user == null) throw new ArgumentNullException(nameof(user));
+			bool ignored;
+			return _userList.TryRemove(user.Id, out ignored);
+		}
+		public bool Remove(string userId)
+		{
+			if (userId == null) throw new ArgumentNullException(nameof(userId));
+			bool ignored;
+			return _userList.TryRemove(userId, out ignored);
+		}
+
+		public void Install(DiscordClient client)
+		{
+			_client = client;
+		}
+	}
+}

src/Discord.Net.Commands/Permissions/Userlist/WhitelistChecker.cs

@@ -0,0 +1,21 @@
+using System;
+
+namespace Discord.Commands.Permissions.Userlist
+{
+    public class WhitelistChecker : IPermissionChecker
+	{
+		private readonly WhitelistService _service;
+
+		internal WhitelistChecker(DiscordClient client)
+		{
+			_service = client.GetService<WhitelistService>();
+			if (_service == null)
+				throw new InvalidOperationException($"{nameof(WhitelistService)} must be added to {nameof(DiscordClient)} before this function is called.");
+		}
+
+		public bool CanRun(Command command, User user, Channel channel)
+		{
+			return _service.CanRun(user);
+		}
+	}
+}

src/Discord.Net.Commands/Permissions/Userlist/WhitelistExtensions.cs

@@ -0,0 +1,21 @@
+namespace Discord.Commands.Permissions.Userlist
+{
+    public static class WhitelistExtensions
+	{
+		public static CommandBuilder UseGlobalWhitelist(this CommandBuilder builder)
+		{
+			builder.AddCheck(new WhitelistChecker(builder.Service.Client));
+			return builder;
+		}
+		public static CommandGroupBuilder UseGlobalWhitelist(this CommandGroupBuilder builder)
+		{
+			builder.AddCheck(new WhitelistChecker(builder.Service.Client));
+			return builder;
+		}
+		public static CommandService UseGlobalWhitelist(this CommandService service)
+		{
+			service.Root.AddCheck(new BlacklistChecker(service.Client));
+			return service;
+		}
+	}
+}

src/Discord.Net.Commands/Permissions/Userlist/WhitelistService.cs

@@ -0,0 +1,17 @@
+using System.Collections.Generic;
+
+namespace Discord.Commands.Permissions.Userlist
+{
+	public class WhitelistService : UserlistService
+	{
+		public WhitelistService(IEnumerable<string> initialList = null)
+			: base(initialList)
+		{
+		}
+
+		public bool CanRun(User user)
+		{
+			return _userList.ContainsKey(user.Id);
+		}
+	}
+}

src/Discord.Net.Modules.Net45/Discord.Net.Modules.csproj

@@ -7,7 +7,7 @@
     <ProjectGuid>{3091164F-66AE-4543-A63D-167C1116241D}</ProjectGuid>
     <OutputType>Library</OutputType>
     <AppDesignerFolder>Properties</AppDesignerFolder>
-    <RootNamespace>Discord</RootNamespace>
+    <RootNamespace>Discord.Modules</RootNamespace>
     <AssemblyName>Discord.Net.Commands</AssemblyName>
     <FileAlignment>512</FileAlignment>
     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
@@ -40,6 +40,9 @@
     <Compile Include="..\Discord.Net.Modules\IModule.cs">
       <Link>IModule.cs</Link>
     </Compile>
+    <Compile Include="..\Discord.Net.Modules\ModuleChecker.cs">
+      <Link>ModuleChecker.cs</Link>
+    </Compile>
     <Compile Include="..\Discord.Net.Modules\ModuleExtensions.cs">
       <Link>ModuleExtensions.cs</Link>
     </Compile>

src/Discord.Net.Modules/Discord.Net.Modules.xproj

@@ -7,7 +7,7 @@
   <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" Condition="'$(VSToolsPath)' != ''" />
   <PropertyGroup Label="Globals">
     <ProjectGuid>01584e8a-78da-486f-9ef9-a894e435841b</ProjectGuid>
-    <RootNamespace>Discord</RootNamespace>
+    <RootNamespace>Discord.Modules</RootNamespace>
     <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
     <OutputPath Condition="'$(OutputPath)'=='' ">..\..\artifacts\bin\$(MSBuildProjectName)\</OutputPath>
   </PropertyGroup>

src/Discord.Net.Modules/ModuleChecker.cs

@@ -0,0 +1,20 @@
+using Discord.Commands;
+using Discord.Commands.Permissions;
+
+namespace Discord.Modules
+{
+	public class ModuleChecker : IPermissionChecker
+	{
+		private readonly ModuleManager _manager;
+
+		internal ModuleChecker(ModuleManager manager)
+		{
+			_manager = manager;
+		}
+
+		public bool CanRun(Command command, User user, Channel channel)
+		{
+			return _manager.FilterType.HasFlag(FilterType.Unrestricted) || _manager.HasChannel(channel);
+		}
+	}
+}

src/Discord.Net.Modules/ModuleManager.cs

@@ -64,8 +64,8 @@ namespace Discord.Modules
 			_name = name;
 			_id = name.ToLowerInvariant();
 			_filterType = filterType;
-            _allowServerWhitelist = filterType.HasFlag(FilterType.Server);
+            _allowServerWhitelist = filterType.HasFlag(FilterType.ServerWhitelist);
-			_allowChannelWhitelist = filterType.HasFlag(FilterType.Channel);
+			_allowChannelWhitelist = filterType.HasFlag(FilterType.ChannelWhitelist);
 			_allowPrivate = filterType.HasFlag(FilterType.AllowPrivate);
 
 			_enabledServers = new ConcurrentDictionary<string, Server>();
@@ -115,6 +115,7 @@ namespace Discord.Modules
 			commandService.CreateGroup(prefix, x =>
 			{
 				x.Category(_name);
+				x.AddCheck(new ModuleChecker(this));
 				config(x);
             });
 
@@ -244,12 +245,12 @@ namespace Discord.Modules
 				DisableAllChannels();
 		}
 
-		private bool HasServer(Server server) => 
+		internal bool HasServer(Server server) => 
 			_allowServerWhitelist && _enabledServers.ContainsKey(server.Id);
-		private bool HasIndirectServer(Server server) => 
+		internal bool HasIndirectServer(Server server) => 
 			(_allowServerWhitelist && _enabledServers.ContainsKey(server.Id)) || 
 			(_allowChannelWhitelist && _indirectServers.ContainsKey(server.Id));
-		private bool HasChannel(Channel channel)
+		internal bool HasChannel(Channel channel)
 		{
 			if (channel.IsPrivate) return _allowPrivate;
 

src/Discord.Net.Modules/ModuleType.cs

@@ -5,12 +5,12 @@ namespace Discord.Modules
 	[Flags]
     public enum FilterType
     {
-		/// <summary> Disables the event filter. </summary>
+		/// <summary> Disables the event and command filtesr. </summary>
-		Disabled = 0x0,
+		Unrestricted = 0x0,
-		/// <summary> Uses the server whitelist to filter events. </summary>
+		/// <summary> Uses the server whitelist to filter events and commands. </summary>
-		Server = 0x1,
+		ServerWhitelist = 0x1,
-		/// <summary> Uses the channel whitelist to filter events.  </summary>
+		/// <summary> Uses the channel whitelist to filter events and commands.  </summary>
-		Channel = 0x2,
+		ChannelWhitelist = 0x2,
 		/// <summary> Enables this module in all private messages.  </summary>
 		AllowPrivate = 0x4
     }