96 lines
3.6 KiB
C#
96 lines
3.6 KiB
C#
using Discord.WebSocket;
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using Newtonsoft.Json.Linq;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Threading.Tasks;
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namespace Kerobot.Modules.AutoScriptResponder
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{
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/// <summary>
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/// Meant to be highly identical to AutoResponder, save for its differentiating feature.
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/// This may not be the best approach to it, but do try and copy any relevant changes from one into
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/// the other whenever they occur.
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/// The feature in question: It executes external scripts and replies with their output.
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/// </summary>
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[KerobotModule]
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class AutoScriptResponder : ModuleBase
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{
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public AutoScriptResponder(Kerobot kb) : base(kb)
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{
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DiscordClient.MessageReceived += DiscordClient_MessageReceived;
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}
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private async Task DiscordClient_MessageReceived(SocketMessage arg)
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{
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if (!(arg.Channel is SocketGuildChannel ch)) return;
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if (arg.Author.IsBot || arg.Author.IsWebhook) return;
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var definitions = GetGuildState<IEnumerable<Definition>>(ch.Guild.Id);
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if (definitions == null) return; // No configuration in this guild; do no further processing
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var tasks = new List<Task>();
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foreach (var def in definitions)
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{
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tasks.Add(Task.Run(async () => await ProcessMessageAsync(arg, def)));
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}
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await Task.WhenAll(tasks);
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}
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public override Task<object> CreateGuildStateAsync(JToken config)
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{
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// Guild state is a read-only IEnumerable<Definition>
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if (config == null) return null;
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var guildDefs = new List<Definition>();
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foreach (var defconf in config.Children<JProperty>())
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{
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// Getting all JProperties in the section.
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// Validation of data is left to the Definition constructor. ModuleLoadException thrown here:
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var def = new Definition(defconf);
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guildDefs.Add(def);
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// TODO global options
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}
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return Task.FromResult<object>(guildDefs.AsReadOnly());
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}
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// ASR edit: this whole thing.
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private async Task ProcessMessageAsync(SocketMessage msg, Definition def)
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{
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if (!def.Match(msg)) return;
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var ch = (SocketGuildChannel)msg.Channel;
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string[] cmdline = def.Command.Split(new char[] { ' ' }, 2);
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var ps = new ProcessStartInfo()
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{
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FileName = cmdline[0],
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Arguments = (cmdline.Length == 2 ? cmdline[1] : ""),
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UseShellExecute = false, // ???
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CreateNoWindow = true,
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RedirectStandardOutput = true
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};
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using (Process p = Process.Start(ps))
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{
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p.WaitForExit(5000); // waiting 5 seconds at most
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if (p.HasExited)
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{
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if (p.ExitCode != 0)
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{
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await LogAsync(ch.Guild.Id, $"'{def.Label}': Process exited abnormally (with code {p.ExitCode}).");
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}
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using (var stdout = p.StandardOutput)
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{
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var result = await stdout.ReadToEndAsync();
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if (!string.IsNullOrWhiteSpace(result)) await msg.Channel.SendMessageAsync(result);
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}
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}
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else
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{
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await LogAsync(ch.Guild.Id, $"'{def.Label}': Process has not exited in 5 seconds. Killing process.");
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p.Kill();
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}
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}
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}
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}
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}
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