Added Channel Permissions

src/Discord.Net/DiscordClient.API.cs

@@ -423,6 +423,67 @@ namespace Discord
 			return null;
 		}
 
+		//Permissions
+		public Task SetChannelUserPermissions(Channel channel, User user, PackedPermissions allow, PackedPermissions deny)
+			=> SetChannelPermissions(channel?.Id, user?.Id, "member", allow, deny);
+		public Task SetChannelUserPermissions(string channelId, User user, PackedPermissions allow, PackedPermissions deny)
+			=> SetChannelPermissions(channelId, user?.Id, "member", allow, deny);
+		public Task SetChannelUserPermissions(Channel channel, string userId, PackedPermissions allow, PackedPermissions deny)
+			=> SetChannelPermissions(channel?.Id, userId, "member", allow, deny);
+		public Task SetChannelUserPermissions(string channelId, string userId, PackedPermissions allow, PackedPermissions deny)
+			=> SetChannelPermissions(channelId, userId, "member", allow, deny);
+
+		public Task SetChannelRolePermissions(Channel channel, Role role, PackedPermissions allow, PackedPermissions deny)
+			=> SetChannelPermissions(channel?.Id, role?.Id, "role", allow, deny);
+		public Task SetChannelRolePermissions(string channelId, Role role, PackedPermissions allow, PackedPermissions deny)
+			=> SetChannelPermissions(channelId, role?.Id, "role", allow, deny);
+		public Task SetChannelRolePermissions(Channel channel, string userId, PackedPermissions allow, PackedPermissions deny)
+			=> SetChannelPermissions(channel?.Id, userId, "role", allow, deny);
+		public Task SetChannelRolePermissions(string channelId, string userId, PackedPermissions allow, PackedPermissions deny)
+			=> SetChannelPermissions(channelId, userId, "role", allow, deny);
+
+		private Task SetChannelPermissions(string channelId, string userOrRoleId, string idType, PackedPermissions allow, PackedPermissions deny)
+		{
+			CheckReady();
+			if (channelId == null) throw new NullReferenceException(nameof(channelId));
+			if (userOrRoleId == null) throw new NullReferenceException(nameof(userOrRoleId));
+
+			return _api.SetChannelPermissions(channelId, userOrRoleId, idType, allow, deny);
+			//TODO: Remove permission from cache
+		}
+
+		public Task RemoveChannelUserPermissions(Channel channel, User user)
+			=> RemoveChannelPermissions(channel?.Id, user?.Id);
+		public Task RemoveChannelUserPermissions(string channelId, User user)
+			=> RemoveChannelPermissions(channelId, user?.Id);
+		public Task RemoveChannelPermissions(Channel channel, string userId)
+			=> RemoveChannelUserPermissions(channel?.Id, userId);
+		public Task RemoveChannelUserPermissions(string channelId, string userId)
+			=> RemoveChannelPermissions(channelId, userId);
+
+		public Task RemoveChannelRolePermissions(Channel channel, Role role)
+			=> RemoveChannelPermissions(channel?.Id, role?.Id);
+		public Task RemoveChannelRolePermissions(string channelId, Role role)
+			=> RemoveChannelPermissions(channelId, role?.Id);
+		public Task RemoveChannelRolePermissions(Channel channel, string roleId)
+			=> RemoveChannelUserPermissions(channel?.Id, roleId);
+		public Task RemoveChannelRolePermissions(string channelId, string roleId)
+			=> RemoveChannelPermissions(channelId, roleId);
+
+		private async Task RemoveChannelPermissions(string channelId, string userOrRoleId)
+		{
+			CheckReady();
+			if (channelId == null) throw new NullReferenceException(nameof(channelId));
+			if (userOrRoleId == null) throw new NullReferenceException(nameof(userOrRoleId));
+
+			try
+			{
+				await _api.DeleteChannelPermissions(channelId, userOrRoleId).ConfigureAwait(false);
+				//TODO: Remove permission from cache
+			}
+			catch (HttpException ex) when (ex.StatusCode == HttpStatusCode.NotFound) { }
+		}
+
 		//Voice
 		/// <summary> Mutes a user on the provided server. </summary>
 		public Task Mute(Server server, User user)

src/Discord.Net/Net/API/DiscordAPIClient.cs

@@ -154,5 +154,16 @@ namespace Discord.Net.API
 			var request = new Requests.ChangeAvatar { Avatar = $"data:{type},/9j/{base64}", CurrentEmail = currentEmail, CurrentPassword = currentPassword };
 			return _rest.Patch<Responses.ChangeProfile>(Endpoints.UserMe, request);
 		}
+
+		//Permissions
+		public Task SetChannelPermissions(string channelId, string userOrRoleId, string idType, PackedPermissions allow, PackedPermissions deny)
+		{
+			var request = new Requests.SetChannelPermissions { Id = userOrRoleId, Type = idType, Allow = allow.RawValue, Deny = deny.RawValue };
+			return _rest.Put(Endpoints.ChannelPermission(channelId, userOrRoleId), request);
+		}
+		public Task DeleteChannelPermissions(string channelId, string userOrRoleId)
+		{
+			return _rest.Delete(Endpoints.ChannelPermission(channelId, userOrRoleId), null);
+		}
 	}
 }

src/Discord.Net/Net/API/Endpoints.cs

@@ -19,7 +19,8 @@
 		public static string ChannelMessages(string channelId, int limit) => $"channels/{channelId}/messages?limit={limit}";
 		public static string ChannelMessage(string channelId, string msgId) => $"channels/{channelId}/messages/{msgId}";
 		public static string ChannelInvites(string channelId) => $"channels/{channelId}/invites";
-		
+        public static string ChannelPermission(string channelId, string userOrRoleId) => $"channels/{channelId}/permissions/{userOrRoleId}";
+
 		public const string Servers = "guilds";
 		public static string Server(string serverId) => $"guilds/{serverId}";
 		public static string ServerChannels(string serverId) => $"guilds/{serverId}/channels";

src/Discord.Net/Net/API/Requests.cs

@@ -125,5 +125,18 @@ namespace Discord.Net.API
 			[JsonProperty(PropertyName = "avatar")]
 			public string Avatar;
 		}
+
+		//Permissions
+		public sealed class SetChannelPermissions
+		{
+			[JsonProperty(PropertyName = "id")]
+			public string Id;
+			[JsonProperty(PropertyName = "type")]
+			public string Type;
+			[JsonProperty(PropertyName = "allow")]
+			public uint Allow;
+			[JsonProperty(PropertyName = "deny")]
+			public uint Deny;
+		}
 	}
 }