422 lines
17 KiB
C#
422 lines
17 KiB
C#
using Discord;
|
|
using Discord.Commands;
|
|
using Discord.Net;
|
|
using Discord.WebSocket;
|
|
using Newtonsoft.Json.Linq;
|
|
using Shared;
|
|
|
|
namespace Server;
|
|
|
|
public class DiscordBot
|
|
{
|
|
private readonly Logger logger = new Logger("Discord");
|
|
private Settings.DiscordTable localSettings = Settings.Instance.Discord;
|
|
private DiscordSocketClient? client = null;
|
|
//private SocketTextChannel? commandChannel = null;
|
|
private SocketTextChannel? logChannel = null;
|
|
private bool firstInitTriggered = false;
|
|
|
|
//check how this works with neither, one or the other, or both channels set.
|
|
|
|
public DiscordBot()
|
|
{
|
|
CommandHandler.RegisterCommand("dscrestart", _ =>
|
|
{
|
|
//Task.Run is to fix deadlock (dispose can only be finalized if all discord callbacks are returned,
|
|
//and since this delegate is called directly from a callback, it would cause a deadlock).
|
|
Task.Run(() =>
|
|
{
|
|
Stop();
|
|
#pragma warning disable CS4014
|
|
Init();
|
|
#pragma warning restore CS4014
|
|
});
|
|
return "Restarting Discord bot...";
|
|
});
|
|
logger.Info("Starting discord bot (ctor)");
|
|
Settings.LoadHandler += OnLoadSettings;
|
|
Logger.AddLogHandler(LogToDiscordLogChannel);
|
|
}
|
|
|
|
private object firstInitLockObj = new object();
|
|
public async Task FirstInit()
|
|
{
|
|
lock (firstInitLockObj)
|
|
{
|
|
if (firstInitTriggered)
|
|
return;
|
|
firstInitTriggered = true;
|
|
}
|
|
await Init();
|
|
}
|
|
|
|
private async Task Init()
|
|
{
|
|
if (client != null)
|
|
{
|
|
return; //this is bad if the client ever crashes and isn't reassigned to null, but we don't want multiple instances of the bot running at the same time.
|
|
}
|
|
if (localSettings.Token == null || (localSettings.AdminChannel == null && localSettings.CommandChannel == null))
|
|
{
|
|
//no point trying to run anything if there's no discord token and/or no channel for a user to interact with the bot through.
|
|
logger.Error("Tried to run the discord bot, but the Token and/or communication channels are not specified in the settings.");
|
|
return;
|
|
}
|
|
client = new DiscordSocketClient(
|
|
new DiscordSocketConfig()
|
|
{
|
|
LogLevel = LogSeverity.Warning
|
|
});
|
|
|
|
client.Log += async (a) => await Task.Run(() =>
|
|
{
|
|
//as time goes on, we may encounter logged info that we literally don't care about. Fill out an if statement to properly
|
|
//filter it out to avoid logging it to discord.
|
|
if (a.Message.Contains("Server requested a reconnect"))
|
|
{
|
|
//This is to filter out this message. This warning is for discord server load balancing and isn't a problem
|
|
|
|
//Warning[Discord: Gateway] Discord.WebSocket.GatewayReconnectException: Server requested a reconnect
|
|
//Warning[Discord: Gateway] at Discord.ConnectionManager.<> c__DisplayClass29_0.<< StartAsync > b__0 > d.MoveNext()
|
|
return;
|
|
}
|
|
string message = a.Message + (a.Exception != null ? "Exception: " + a.Exception.ToString() : "");
|
|
ConsoleColor col;
|
|
switch (a.Severity)
|
|
{
|
|
default:
|
|
case LogSeverity.Info:
|
|
case LogSeverity.Debug:
|
|
col = ConsoleColor.White;
|
|
break;
|
|
case LogSeverity.Critical:
|
|
case LogSeverity.Error:
|
|
col = ConsoleColor.Red;
|
|
break;
|
|
case LogSeverity.Warning:
|
|
col = ConsoleColor.Yellow;
|
|
break;
|
|
}
|
|
|
|
LogToDiscordLogChannel($"Discord: {a.Source}", a.Severity.ToString(), message, col);
|
|
});
|
|
try
|
|
{
|
|
await client.LoginAsync(Discord.TokenType.Bot, localSettings.Token);
|
|
await client.StartAsync();
|
|
SemaphoreSlim wait = new SemaphoreSlim(0);
|
|
#pragma warning disable CS1998
|
|
client.Ready += async () =>
|
|
#pragma warning restore CS1998
|
|
{
|
|
wait.Release();
|
|
};
|
|
await wait.WaitAsync();
|
|
//we need to wait for the ready event before we can do any of this nonsense.
|
|
logChannel = (ulong.TryParse(localSettings.AdminChannel, out ulong lcid) ? (client != null ? await client.GetChannelAsync(lcid) : null) : null) as SocketTextChannel;
|
|
//commandChannel = (ulong.TryParse(localSettings.CommandChannel, out ulong ccid) ? (client != null ? await client.GetChannelAsync(ccid) : null) : null) as SocketTextChannel;
|
|
client!.MessageReceived += (m) => HandleCommandAsync(m);
|
|
logger.Info("Discord bot has been initialized.");
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
logger.Error(e);
|
|
}
|
|
}
|
|
|
|
private void Stop()
|
|
{
|
|
try
|
|
{
|
|
if (client != null)
|
|
client.StopAsync().Wait();
|
|
client?.Dispose();
|
|
}
|
|
catch { /*lol (lmao)*/ }
|
|
client = null;
|
|
logChannel = null;
|
|
//commandChannel = null;
|
|
localSettings = Settings.Instance.Discord;
|
|
}
|
|
|
|
private async void LogToDiscordLogChannel(string source, string level, string text, ConsoleColor color)
|
|
{
|
|
logChannel = (ulong.TryParse(localSettings.AdminChannel, out ulong lcid) ? (client != null ? await client.GetChannelAsync(lcid) : null) : null) as SocketTextChannel;
|
|
if (logChannel != null)
|
|
{
|
|
try
|
|
{
|
|
switch (color)
|
|
{
|
|
//I looked into other hacky methods of doing more colors, the rest seemed unreliable.
|
|
default:
|
|
foreach (string mesg in SplitMessage(Logger.PrefixNewLines(text, $"{level} [{source}]"), 1994)) //room for 6 '`'
|
|
await logChannel.SendMessageAsync($"```{mesg}```");
|
|
break;
|
|
case ConsoleColor.Yellow:
|
|
foreach (string mesg in SplitMessage(Logger.PrefixNewLines(text, $"{level} [{source}]"), 1990)) //room for 6 '`', "fix" and "\n"
|
|
await logChannel.SendMessageAsync($"```fix\n{mesg}```");
|
|
break;
|
|
case ConsoleColor.Red:
|
|
foreach (string mesg in SplitMessage(Logger.PrefixNewLines(text, $"-{level} [{source}]"), 1989)) //room for 6 '`', "diff" and "\n"
|
|
await logChannel.SendMessageAsync($"```diff\n{mesg}```");
|
|
break;
|
|
case ConsoleColor.Green:
|
|
foreach (string mesg in SplitMessage(Logger.PrefixNewLines(text, $"+{level} [{source}]"), 1989)) //room for 6 '`', "diff" and "\n"
|
|
await logChannel.SendMessageAsync($"```diff\n{mesg}```");
|
|
break;
|
|
}
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
// don't log again, it'll just stack overflow the server!
|
|
await Console.Error.WriteLineAsync("Exception in discord logger");
|
|
await Console.Error.WriteLineAsync(e.ToString());
|
|
}
|
|
}
|
|
}
|
|
|
|
private async Task HandleCommandAsync(SocketMessage arg)
|
|
{
|
|
if (arg is not SocketUserMessage)
|
|
return; //idk what to do in this circumstance.
|
|
if ((arg.Channel.Id.ToString() == localSettings.CommandChannel || arg.Channel.Id.ToString() == localSettings.AdminChannel) && !arg.Author.IsBot)
|
|
{
|
|
string message = (await arg.Channel.GetMessageAsync(arg.Id)).Content;
|
|
//run command
|
|
try
|
|
{
|
|
string? args = null;
|
|
if (string.IsNullOrEmpty(localSettings.Prefix))
|
|
{
|
|
args = message;
|
|
}
|
|
else if (message.StartsWith(localSettings.Prefix))
|
|
{
|
|
args = message[localSettings.Prefix.Length..];
|
|
}
|
|
else if (message.StartsWith($"<@{client!.CurrentUser.Id}>"))
|
|
{
|
|
args = message[client!.CurrentUser.Mention.Length..].TrimStart();
|
|
}
|
|
if (args != null)
|
|
{
|
|
await arg.Channel.TriggerTypingAsync();
|
|
string resp = string.Join('\n', CommandHandler.GetResult(args).ReturnStrings);
|
|
if (localSettings.LogCommands)
|
|
{
|
|
logger.Info($"\"{arg.Author.Username}\" ran the command: \"{message}\" via discord");
|
|
}
|
|
foreach (string mesg in SplitMessage(resp))
|
|
await (arg as SocketUserMessage).ReplyAsync(mesg);
|
|
}
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
logger.Error(e);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
//don't respond to commands not in these channels, and no bots
|
|
//probably don't print out error message because DDOS
|
|
}
|
|
}
|
|
|
|
private void OnLoadSettings()
|
|
{
|
|
Settings.DiscordTable oldSettings = localSettings;
|
|
localSettings = Settings.Instance.Discord;
|
|
|
|
if (localSettings.CommandChannel == null)
|
|
logger.Warn("You probably should set your CommandChannel in settings.json");
|
|
if (localSettings.AdminChannel == null)
|
|
logger.Warn("You probably should set your LogChannel in settings.json");
|
|
|
|
if (oldSettings.Token != localSettings.Token || oldSettings.AdminChannel != localSettings.AdminChannel || oldSettings.CommandChannel != localSettings.CommandChannel)
|
|
{
|
|
//start over fresh (there might be a more intelligent way to do this without restarting the bot if only the log/command channel changed, but I'm lazy.
|
|
Stop();
|
|
#pragma warning disable CS4014
|
|
Init();
|
|
#pragma warning restore CS4014
|
|
}
|
|
}
|
|
|
|
private async Task WeGotRateLimitedLBozo(IRateLimitInfo info)
|
|
{
|
|
//this is spamming because apparently this is called for more than just rate limiting.
|
|
//await Console.Error.WriteLineAsync("We got rate limited!");
|
|
}
|
|
|
|
private static List<string> SplitMessage(string message, int maxSizePerElem = 2000)
|
|
{
|
|
List<string> result = new List<string>();
|
|
for (int i = 0; i < message.Length; i += maxSizePerElem)
|
|
{
|
|
result.Add(message.Substring(i, message.Length - i < maxSizePerElem ? message.Length - i : maxSizePerElem));
|
|
}
|
|
return result;
|
|
}
|
|
|
|
~DiscordBot()
|
|
{
|
|
Stop();
|
|
}
|
|
|
|
#region Old
|
|
//private DiscordClient? DiscordClient;
|
|
//private string? Token;
|
|
//private Settings.DiscordTable Config => Settings.Instance.Discord;
|
|
//private string Prefix => Config.Prefix;
|
|
//private readonly Logger Logger = new Logger("Discord");
|
|
//private DiscordChannel? CommandChannel;
|
|
//private DiscordChannel? LogChannel;
|
|
//private bool Reconnecting;
|
|
|
|
//public DiscordBot() {
|
|
// Token = Config.Token;
|
|
// Logger.AddLogHandler(Log);
|
|
// CommandHandler.RegisterCommand("dscrestart", _ => {
|
|
// // this should be async'ed but i'm lazy
|
|
// Reconnecting = true;
|
|
// Task.Run(Reconnect);
|
|
// return "Restarting Discord bot";
|
|
// });
|
|
// if (Config.Token == null) return;
|
|
// if (Config.CommandChannel == null)
|
|
// Logger.Warn("You probably should set your CommandChannel in settings.json");
|
|
// if (Config.LogChannel == null)
|
|
// Logger.Warn("You probably should set your LogChannel in settings.json");
|
|
// Settings.LoadHandler += SettingsLoadHandler;
|
|
//}
|
|
|
|
//private async Task Reconnect() {
|
|
// if (DiscordClient != null) // usually null prop works, not here though...`
|
|
// await DiscordClient.DisconnectAsync();
|
|
// await Run();
|
|
//}
|
|
|
|
//private async void SettingsLoadHandler() {
|
|
// if (DiscordClient == null || Token != Config.Token) {
|
|
// await Run();
|
|
// }
|
|
|
|
// if (DiscordClient == null) {
|
|
// Logger.Error(new NullReferenceException("Discord client not setup yet!"));
|
|
// return;
|
|
// }
|
|
|
|
// if (Config.CommandChannel != null) {
|
|
// try {
|
|
// CommandChannel = await DiscordClient.GetChannelAsync(ulong.Parse(Config.CommandChannel));
|
|
// } catch (Exception e) {
|
|
// Logger.Error($"Failed to get command channel \"{Config.CommandChannel}\"");
|
|
// Logger.Error(e);
|
|
// }
|
|
// }
|
|
|
|
// if (Config.LogChannel != null) {
|
|
// try {
|
|
// LogChannel = await DiscordClient.GetChannelAsync(ulong.Parse(Config.LogChannel));
|
|
// } catch (Exception e) {
|
|
// Logger.Error($"Failed to get log channel \"{Config.LogChannel}\"");
|
|
// Logger.Error(e);
|
|
// }
|
|
// }
|
|
//}
|
|
|
|
//private static List<string> SplitMessage(string message, int maxSizePerElem = 2000)
|
|
//{
|
|
// List<string> result = new List<string>();
|
|
// for (int i = 0; i < message.Length; i += maxSizePerElem)
|
|
// {
|
|
// result.Add(message.Substring(i, message.Length - i < maxSizePerElem ? message.Length - i : maxSizePerElem));
|
|
// }
|
|
// return result;
|
|
//}
|
|
|
|
//private async void Log(string source, string level, string text, ConsoleColor _) {
|
|
// try {
|
|
// if (DiscordClient != null && LogChannel != null) {
|
|
// foreach (string mesg in SplitMessage(Logger.PrefixNewLines(text, $"{level} [{source}]"), 1994)) //room for 6 '`'
|
|
// await DiscordClient.SendMessageAsync(LogChannel, $"```{mesg}```");
|
|
// }
|
|
// } catch (Exception e) {
|
|
// // don't log again, it'll just stack overflow the server!
|
|
// if (Reconnecting) return; // skip if reconnecting
|
|
// await Console.Error.WriteLineAsync("Exception in discord logger");
|
|
// await Console.Error.WriteLineAsync(e.ToString());
|
|
// }
|
|
//}
|
|
|
|
//public async Task Run() {
|
|
// Token = Config.Token;
|
|
// DiscordClient?.Dispose();
|
|
// if (Config.Token == null) {
|
|
// DiscordClient = null;
|
|
// return;
|
|
// }
|
|
|
|
// try {
|
|
// DiscordClient = new DiscordClient(new DiscordConfiguration {
|
|
// Token = Config.Token,
|
|
// MinimumLogLevel = LogLevel.None
|
|
// });
|
|
// await DiscordClient.ConnectAsync(new DiscordActivity("Hide and Seek", ActivityType.Competing));
|
|
// SettingsLoadHandler();
|
|
// Logger.Info(
|
|
// $"Discord bot logged in as {DiscordClient.CurrentUser.Username}#{DiscordClient.CurrentUser.Discriminator}");
|
|
// Reconnecting = false;
|
|
// string mentionPrefix = $"{DiscordClient.CurrentUser.Mention}";
|
|
// DiscordClient.MessageCreated += async (_, args) => {
|
|
// if (args.Author.IsCurrent) return; //dont respond to commands from ourselves (prevent "sql-injection" esq attacks)
|
|
// //prevent commands via dm and non-public channels
|
|
// if (CommandChannel == null) {
|
|
// if (args.Channel is DiscordDmChannel)
|
|
// return; //no dm'ing the bot allowed!
|
|
// }
|
|
// else if (args.Channel.Id != CommandChannel.Id && (LogChannel != null && args.Channel.Id != LogChannel.Id))
|
|
// return;
|
|
// //run command
|
|
// try {
|
|
// DiscordMessage msg = args.Message;
|
|
// string? resp = null;
|
|
// if (string.IsNullOrEmpty(Prefix)) {
|
|
// await msg.Channel.TriggerTypingAsync();
|
|
// resp = string.Join('\n', CommandHandler.GetResult(msg.Content).ReturnStrings);
|
|
// } else if (msg.Content.StartsWith(Prefix)) {
|
|
// await msg.Channel.TriggerTypingAsync();
|
|
// resp = string.Join('\n', CommandHandler.GetResult(msg.Content[Prefix.Length..]).ReturnStrings);
|
|
// } else if (msg.Content.StartsWith(mentionPrefix)) {
|
|
// await msg.Channel.TriggerTypingAsync();
|
|
// resp = string.Join('\n', CommandHandler.GetResult(msg.Content[mentionPrefix.Length..].TrimStart()).ReturnStrings);
|
|
// }
|
|
// if (resp != null)
|
|
// {
|
|
// foreach (string mesg in SplitMessage(resp))
|
|
// await msg.RespondAsync(mesg);
|
|
// }
|
|
// } catch (Exception e) {
|
|
// Logger.Error(e);
|
|
// }
|
|
// };
|
|
// DiscordClient.ClientErrored += (_, args) => {
|
|
// Logger.Error("Discord client caught an error in handler!");
|
|
// Logger.Error(args.Exception);
|
|
// return Task.CompletedTask;
|
|
// };
|
|
// DiscordClient.SocketErrored += (_, args) => {
|
|
// Logger.Error("This is probably that stupid bug again!");
|
|
// Logger.Error("Discord client caught an error on socket!");
|
|
// Logger.Error(args.Exception);
|
|
// return Task.CompletedTask;
|
|
// };
|
|
// } catch (Exception e) {
|
|
// Logger.Error("Exception occurred in discord runner!");
|
|
// Logger.Error(e);
|
|
// }
|
|
//}
|
|
#endregion
|
|
}
|