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Remove text-based commands

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Noi 2022-08-29 13:45:01 -07:00
parent 5891cdfe03
commit 92d23217b9
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399
CommandsText.cs
View file

@ -1,399 +0,0 @@
using Microsoft.Extensions.DependencyInjection;
using NodaTime;
using System.Collections.ObjectModel;
using System.Globalization;
using System.Text;
using System.Text.RegularExpressions;
using WorldTime.Data;
namespace WorldTime;
[Obsolete("Text commands are deprecated and will be removed soon.")]
internal class CommandsText {
#if DEBUG
public const string CommandPrefix = "tt.";
#else
public const string CommandPrefix = "tz.";
#endif
delegate Task Command(SocketTextChannel channel, SocketGuildUser sender, SocketMessage message);
private readonly Dictionary<string, Command> _commands;
private readonly IServiceProvider _services;
private readonly WorldTime _instance;
private BotDatabaseContext Database => _services.GetRequiredService<BotDatabaseContext>();
private static readonly Regex _userExplicit;
private static readonly Regex _userMention;
private static readonly ReadOnlyDictionary<string, string> _tzNameMap;
private const string ErrInvalidZone = ":x: Not a valid zone name."
+ " To find your time zone, refer to: <https://kevinnovak.github.io/Time-Zone-Picker/>.";
private const string ErrTargetUserNotFound = ":x: Unable to find the target user.";
private const string ErrNoUserCache = ":warning: Please try the command again.";
private const int MaxSingleLineLength = 750;
private const int MaxSingleOutputLength = 900;
static CommandsText() {
_userExplicit = new Regex(@"(.+)#(\d{4})", RegexOptions.Compiled);
_userMention = new Regex(@"\!?(\d+)>", RegexOptions.Compiled);
Dictionary<string, string> tzNameMap = new(StringComparer.OrdinalIgnoreCase);
foreach (var name in DateTimeZoneProviders.Tzdb.Ids) tzNameMap.Add(name, name);
_tzNameMap = new(tzNameMap);
}
public CommandsText(WorldTime inst, IServiceProvider services) {
_instance = inst;
_services = services;
_commands = new(StringComparer.OrdinalIgnoreCase) {
{ "help", CmdHelp },
{ "list", CmdList },
{ "set", CmdSet },
{ "remove", CmdRemove },
{ "setfor", CmdSetFor },
{ "removefor", CmdRemoveFor }
};
inst.DiscordClient.MessageReceived += CommandDispatch;
}
private async Task CommandDispatch(SocketMessage message) {
if (message.Author.IsBot || message.Author.IsWebhook) return;
if (message.Type != MessageType.Default) return;
if (message.Channel is not SocketTextChannel channel) return; // not handling DMs
var msgsplit = message.Content.Split(' ', 2, StringSplitOptions.RemoveEmptyEntries);
if (msgsplit.Length == 0 || msgsplit[0].Length < 4) return;
if (msgsplit[0].StartsWith(CommandPrefix, StringComparison.OrdinalIgnoreCase)) {
var cmdBase = msgsplit[0][3..];
if (_commands.ContainsKey(cmdBase)) {
NoiTheCat.TextCommandRemovalWarning.Intercept(message, channel.Guild.Id);
Program.Log("Command invoked", $"{channel.Guild.Name}/{message.Author} {message.Content}");
try {
await _commands[cmdBase](channel, (SocketGuildUser)message.Author, message).ConfigureAwait(false);
} catch (Exception ex) {
Program.Log("Command invoked", ex.ToString());
}
}
}
}
private async Task CmdHelp(SocketTextChannel channel, SocketGuildUser sender, SocketMessage message) {
using var db = Database;
var version = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version!.ToString(3);
var guildct = _instance.DiscordClient.Guilds.Count;
var uniquetz = db.GetDistinctZoneCount();
await channel.SendMessageAsync(embed: new EmbedBuilder() {
Color = new Color(0xe0f2f7),
Title = "Help & About",
Description = $"World Time v{version} - Serving {guildct} communities across {uniquetz} time zones.\n\n"
+ "This bot is provided for free, without any paywalled 'premium' features. "
+ "If you've found this bot useful, please consider contributing via the "
+ "bot author's page on Ko-fi: https://ko-fi.com/noithecat.",
Footer = new EmbedFooterBuilder() {
IconUrl = _instance.DiscordClient.CurrentUser.GetAvatarUrl(),
Text = "World Time"
}
}.AddField(inline: false, name: "Commands", value:
$"`{CommandPrefix}help` - This message.\n" +
$"`{CommandPrefix}list` - Displays current times for all recently active known users.\n" +
$"`{CommandPrefix}list [user]` - Displays the current time for the given *user*.\n" +
$"`{CommandPrefix}set [zone]` - Registers or updates your *zone* with the bot.\n" +
$"`{CommandPrefix}remove` - Removes your name from this bot."
).AddField(inline: false, name: "Admin commands", value:
$"`{CommandPrefix}setFor [user] [zone]` - Sets the time zone for another user.\n" +
$"`{CommandPrefix}removeFor [user]` - Removes another user's information."
).AddField(inline: false, name: "Zones", value:
"This bot accepts zone names from the IANA Time Zone Database (a.k.a. Olson Database). " +
"A useful tool to determine yours can be found at: https://kevinnovak.github.io/Time-Zone-Picker/"
).Build());
}
private async Task CmdList(SocketTextChannel channel, SocketGuildUser sender, SocketMessage message) {
if (!await AreUsersDownloadedAsync(channel.Guild).ConfigureAwait(false)) {
await channel.SendMessageAsync(ErrNoUserCache).ConfigureAwait(false);
return;
}
var wspl = message.Content.Split(' ', 2, StringSplitOptions.RemoveEmptyEntries);
if (wspl.Length == 2) {
// Has parameter - do specific user lookup
var usersearch = ResolveUserParameter(channel.Guild, wspl[1]);
if (usersearch == null) {
await channel.SendMessageAsync(":x: Cannot find the specified user.").ConfigureAwait(false);
return;
}
using var db = Database;
var result = db.GetUserZone(usersearch);
if (result == null) {
bool isself = sender.Id == usersearch.Id;
if (isself) await channel.SendMessageAsync(":x: You do not have a time zone. Set it with `tz.set`.").ConfigureAwait(false);
else await channel.SendMessageAsync(":x: The given user does not have a time zone set.").ConfigureAwait(false);
return;
}
var resulttext = TzPrint(result)[4..] + ": " + FormatName(usersearch);
await channel.SendMessageAsync(embed: new EmbedBuilder().WithDescription(resulttext).Build()).ConfigureAwait(false);
} else {
// Does not have parameter - build full list
using var db = Database;
var userlist = db.GetGuildZones(channel.Guild.Id);
if (userlist.Count == 0) {
await channel.SendMessageAsync(":x: Nothing to show. " +
$"To register time zones with the bot, use the `{CommandPrefix}set` command.").ConfigureAwait(false);
return;
}
// Order times by popularity to limit how many are shown, group by printed name
var sortedlist = new SortedDictionary<string, List<ulong>>();
foreach ((string area, List<ulong> users) in userlist.OrderByDescending(o => o.Value.Count).Take(20)) {
// Filter further to top 20 distinct timezones, even if they are not displayed in the final result
var areaprint = TzPrint(area);
if (!sortedlist.ContainsKey(areaprint)) sortedlist.Add(areaprint, new List<ulong>());
sortedlist[areaprint].AddRange(users);
}
// Build zone listings with users
var outputlines = new List<string>();
foreach ((string area, List<ulong> users) in sortedlist) {
var buffer = new StringBuilder();
buffer.Append(area[4..] + ": ");
bool empty = true;
foreach (var userid in users) {
var userinstance = channel.Guild.GetUser(userid);
if (userinstance == null) continue;
if (empty) empty = !empty;
else buffer.Append(", ");
var useradd = FormatName(userinstance);
if (buffer.Length + useradd.Length > MaxSingleLineLength) {
buffer.Append("others...");
break;
} else buffer.Append(useradd);
}
if (!empty) outputlines.Add(buffer.ToString());
}
// Prepare for output - send buffers out if they become too large
outputlines.Sort();
var resultout = new StringBuilder();
foreach (var line in outputlines) {
if (resultout.Length + line.Length > MaxSingleOutputLength) {
await channel.SendMessageAsync(
embed: new EmbedBuilder().WithDescription(resultout.ToString()).Build()).ConfigureAwait(false);
resultout.Clear();
}
if (resultout.Length > 0) resultout.AppendLine(); // avoids trailing newline by adding to the previous line
resultout.Append(line);
}
if (resultout.Length > 0) {
await channel.SendMessageAsync(
embed: new EmbedBuilder().WithDescription(resultout.ToString()).Build()).ConfigureAwait(false);
}
}
}
private async Task CmdSet(SocketTextChannel channel, SocketGuildUser sender, SocketMessage message) {
var wspl = message.Content.Split(' ', 2, StringSplitOptions.RemoveEmptyEntries);
if (wspl.Length == 1) {
await channel.SendMessageAsync(":x: Zone parameter is required.").ConfigureAwait(false);
return;
}
var input = ParseTimeZone(wspl[1]);
if (input == null) {
await channel.SendMessageAsync(ErrInvalidZone).ConfigureAwait(false);
return;
}
using var db = Database;
db.UpdateUser(sender, input);
await channel.SendMessageAsync($":white_check_mark: Your time zone has been set to **{input}**.").ConfigureAwait(false);
}
private async Task CmdSetFor(SocketTextChannel channel, SocketGuildUser sender, SocketMessage message) {
if (!IsUserAdmin(sender)) return;
// Parameters: command, target, zone
var wspl = message.Content.Split(' ', 3, StringSplitOptions.RemoveEmptyEntries);
if (wspl.Length == 1) {
await channel.SendMessageAsync(":x: You must specify a user to set the time zone for.").ConfigureAwait(false);
return;
}
if (wspl.Length == 2) {
await channel.SendMessageAsync(":x: You must specify a time zone to apply to the user.").ConfigureAwait(false);
return;
}
if (!await AreUsersDownloadedAsync(channel.Guild).ConfigureAwait(false)) {
await channel.SendMessageAsync(ErrNoUserCache).ConfigureAwait(false);
return;
}
var targetuser = ResolveUserParameter(channel.Guild, wspl[1]);
if (targetuser == null) {
await channel.SendMessageAsync(ErrTargetUserNotFound).ConfigureAwait(false);
return;
}
var newtz = ParseTimeZone(wspl[2]);
if (newtz == null) {
await channel.SendMessageAsync(ErrInvalidZone).ConfigureAwait(false);
return;
}
using var db = Database;
db.UpdateUser(targetuser, newtz);
await channel.SendMessageAsync($":white_check_mark: Time zone for **{targetuser}** set to **{newtz}**.").ConfigureAwait(false);
}
private async Task CmdRemove(SocketTextChannel channel, SocketGuildUser sender, SocketMessage message) {
using var db = Database;
var success = db.DeleteUser(sender);
if (success) await channel.SendMessageAsync(":white_check_mark: Your zone has been removed.").ConfigureAwait(false);
else await channel.SendMessageAsync(":x: You don't have a time zone set.");
}
private async Task CmdRemoveFor(SocketTextChannel channel, SocketGuildUser sender, SocketMessage message) {
if (!IsUserAdmin(sender)) return;
// Parameters: command, target
var wspl = message.Content.Split(' ', 2, StringSplitOptions.RemoveEmptyEntries);
if (wspl.Length == 1) {
await channel.SendMessageAsync(":x: You must specify a user for whom to remove time zone data.").ConfigureAwait(false);
return;
}
if (!await AreUsersDownloadedAsync(channel.Guild).ConfigureAwait(false)) {
await channel.SendMessageAsync(ErrNoUserCache).ConfigureAwait(false);
return;
}
var targetuser = ResolveUserParameter(channel.Guild, wspl[1]);
if (targetuser == null) {
await channel.SendMessageAsync(ErrTargetUserNotFound).ConfigureAwait(false);
return;
}
using var db = Database;
db.DeleteUser(targetuser);
await channel.SendMessageAsync($":white_check_mark: Removed zone information for {targetuser}.");
}
/// <summary>
/// Given parameter input, attempts to find the corresponding SocketGuildUser.
/// </summary>
private static SocketGuildUser? ResolveUserParameter(SocketGuild guild, string input) {
// Try interpreting as ID
var match = _userMention.Match(input);
string idcheckstr = match.Success ? match.Groups[1].Value : input;
if (ulong.TryParse(idcheckstr, out var value)) return guild.GetUser(value);
// Prepare if input looks like Username#Discriminator
var @explicit = _userExplicit.Match(input);
foreach (var user in guild.Users) {
// Explicit match search
if (@explicit.Success) {
var username = @explicit.Groups[1].Value;
var discriminator = @explicit.Groups[2].Value;
if (string.Equals(user.Username, username, StringComparison.OrdinalIgnoreCase) && user.Discriminator == discriminator)
return user;
}
// Nickname search
if (user.Nickname != null && string.Equals(user.Nickname, input, StringComparison.OrdinalIgnoreCase)) return user;
// Username search
if (string.Equals(user.Username, input, StringComparison.OrdinalIgnoreCase)) return user;
}
return null;
}
#region Helper methods
/// <summary>
/// Returns a string displaying the current time in the given time zone.
/// The result begins with four numbers for sorting purposes. Must be trimmed before output.
/// </summary>
private static string TzPrint(string zone) {
var tzdb = DateTimeZoneProviders.Tzdb;
DateTimeZone tz = tzdb.GetZoneOrNull(zone)!;
if (tz == null) throw new Exception("Encountered unknown time zone: " + zone);
var now = SystemClock.Instance.GetCurrentInstant().InZone(tz);
var sortpfx = now.ToString("MMdd", DateTimeFormatInfo.InvariantInfo);
var fullstr = now.ToString("dd'-'MMM' 'HH':'mm' 'x' (UTC'o<g>')'", DateTimeFormatInfo.InvariantInfo);
return $"{sortpfx}● `{fullstr}`";
}
/// <summary>
/// Checks given time zone input. Returns a valid string for use with NodaTime, or null.
/// </summary>
private static string? ParseTimeZone(string tzinput) {
if (tzinput.Equals("Asia/Calcutta", StringComparison.OrdinalIgnoreCase)) tzinput = "Asia/Kolkata";
if (_tzNameMap.TryGetValue(tzinput, out var name)) return name;
return null;
}
/// <summary>
/// Formats a user's name to a consistent, readable format which makes use of their nickname.
/// </summary>
private static string FormatName(SocketGuildUser user) {
static string escapeFormattingCharacters(string input) {
var result = new StringBuilder();
foreach (var c in input) {
if (c is '\\' or '_' or '~' or '*' or '@') {
result.Append('\\');
}
result.Append(c);
}
return result.ToString();
}
var username = escapeFormattingCharacters(user.Username);
if (user.Nickname != null) {
return $"**{escapeFormattingCharacters(user.Nickname)}** ({username}#{user.Discriminator})";
}
return $"**{username}**#{user.Discriminator}";
}
/// <summary>
/// Checks if the given user can be considered a guild admin ('Manage Server' is set).
/// </summary>
private static bool IsUserAdmin(SocketGuildUser user)
=> user.GuildPermissions.Administrator || user.GuildPermissions.ManageGuild;
/// <summary>
/// Checks if the member cache for the specified guild needs to be filled, and sends a request if needed.
/// </summary>
/// <remarks>
/// Due to a quirk in Discord.Net, the user cache cannot be filled until the command handler is no longer executing,
/// regardless of if the request runs on its own thread.
/// </remarks>
/// <returns>
/// True if the guild's members are already downloaded. If false, the command handler must notify the user.
/// </returns>
private static async Task<bool> AreUsersDownloadedAsync(SocketGuild guild) {
if (HasMostMembersDownloaded(guild)) return true;
else {
// Event handler hangs if awaited normally or used with Task.Run
await Task.Factory.StartNew(guild.DownloadUsersAsync).ConfigureAwait(false);
return false;
}
}
/// <summary>
/// An alternative to <see cref="SocketGuild.HasAllMembers"/>.
/// Returns true if *most* members have been downloaded.
/// Used as a workaround check due to Discord.Net occasionally unable to actually download all members.
/// </summary>
/// <remarks>Copied directly from BirthdayBot. Try to coordinate changes between projects...</remarks>
private static bool HasMostMembersDownloaded(SocketGuild guild) {
if (guild.HasAllMembers) return true;
if (guild.MemberCount > 30) {
// For guilds of size over 30, require 85% or more of the members to be known
// (26/30, 42/50, 255/300, etc)
return guild.DownloadedMemberCount >= (int)(guild.MemberCount * 0.85);
} else {
// For smaller guilds, fail if two or more members are missing
return guild.MemberCount - guild.DownloadedMemberCount <= 2;
}
}
#endregion
}

41
TextCommandRemovalWarning.cs
View file

@ -1,41 +0,0 @@
namespace NoiTheCat;
static class TextCommandRemovalWarning {
public const string StopUsingTextCommands = ":warning: **Reminder**: Text-based commands will be phased out by the end of August. " +
"Please switch to using slash commands. For details on their usage, use this bot's `/help` command.";
private static readonly RateLimit<ulong> _warnedList = new(8 * 60 * 60); // 8 hours
public static void Intercept(SocketMessage msg, ulong gid) {
lock (_warnedList) {
if (!_warnedList.IsPermitted(gid)) return;
try {
msg.Channel.SendMessageAsync(StopUsingTextCommands).GetAwaiter().GetResult();
} catch (Exception e) {
_warnedList.Reset(gid);
Console.WriteLine(e.ToString());
}
}
}
private class RateLimit<T> where T : notnull {
private const int DefaultTimeout = 20;
public int Timeout { get; }
private Dictionary<T, DateTime> Entries { get; } = new Dictionary<T, DateTime>();
public RateLimit() : this(DefaultTimeout) { }
public RateLimit(int timeout) {
if (timeout < 0) throw new ArgumentOutOfRangeException(nameof(timeout), "Timeout valie cannot be negative.");
Timeout = timeout;
}
public bool IsPermitted(T value) {
if (Timeout == 0) return true;
var now = DateTime.Now;
var expired = Entries.Where(x => x.Value.AddSeconds(Timeout) <= now).Select(x => x.Key).ToList();
foreach (var item in expired) Entries.Remove(item);
if (Entries.ContainsKey(value)) return false;
else {
Entries.Add(value, DateTime.Now);
return true;
}
}
public bool Reset(T value) => Entries.Remove(value);
}
}

6
WorldTime.cs
View file

@ -29,7 +29,6 @@ internal class WorldTime : IDisposable {
private readonly Task _statusTask;
private readonly CancellationTokenSource _mainCancel;
private readonly CommandsText _commandsTxt;
private readonly IServiceProvider _services;
internal Configuration Config { get; }
@ -60,8 +59,6 @@ internal class WorldTime : IDisposable {
DiscordClient.InteractionCreated += DiscordClient_InteractionCreated;
iasrv.SlashCommandExecuted += InteractionService_SlashCommandExecuted;
_commandsTxt = new CommandsText(this, _services);
// Start status reporting thread
_mainCancel = new CancellationTokenSource();
_statusTask = Task.Factory.StartNew(StatusLoop, _mainCancel.Token,
@ -160,9 +157,6 @@ internal class WorldTime : IDisposable {
}
private async Task DiscordClient_ShardReady(DiscordSocketClient arg) {
// TODO get rid of this eventually? or change it to something fun...
await arg.SetGameAsync("/help");
#if !DEBUG
// Update slash/interaction commands
if (arg.ShardId == 0) {