SourceConnectBot source code

using System.Collections.Immutable;
using System.Text.RegularExpressions;
using Discord;

namespace SourceConnectLink
{
    // https://discordapp.com/api/oauth2/authorize?client_id=<client id>&scope=bot&permissions=0
    public class CommandListener
    {
        DiscordClient m_Client;

        readonly ImmutableArray<Regex> m_Regexes = ImmutableArray.Create(
            new Regex(@"connect\s*(?'ip'\S+)\s*;\s*password\s*(?'pw'\S+);?", RegexOptions.Compiled),
            new Regex(@"password\s*(?'pw'\S+)\s*;\s*connect\s*(?'ip'\S+)\s*;?", RegexOptions.Compiled)
        );

        public CommandListener()
        {
            DiscordConfigBuilder configBuilder = new DiscordConfigBuilder();
            configBuilder.AppName = "SourceConnectLink";

            m_Client = new DiscordClient(configBuilder);

            m_Client.MessageReceived += MessageReceived;

            m_Client.Connect("<client secret>", TokenType.Bot);
        }

        private void MessageReceived(object sender, MessageEventArgs e)
        {
            if (e.Message.IsAuthor)
                return;

            foreach (Regex r in m_Regexes)
            {
                Match m = r.Match(e.Message.Text);
                if (m.Success)
                {
                    e.Channel.SendMessage(string.Format("steam://connect/{0}/{1}", m.Groups["ip"].Value, m.Groups["pw"].Value));
                    return;
                }
            }
        }
    }
}