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Refactor command message deletion

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This commit is contained in:
Ske
2020-10-23 12:18:28 +02:00
parent 134829b263
commit 81cd5496d5
7 changed files with 117 additions and 46 deletions
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8
PluralKit.Bot/Bot.cs
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@@ -36,13 +36,13 @@ namespace PluralKit.Bot
private readonly PeriodicStatCollector _collector;
private readonly IMetrics _metrics;
private readonly ErrorMessageService _errorMessageService;
private readonly IDatabase _db;
private readonly CommandMessageService _commandMessageService;
private bool _hasReceivedReady = false;
private Timer _periodicTask; // Never read, just kept here for GC reasons
public Bot(DiscordShardedClient client, ILifetimeScope services, ILogger logger, PeriodicStatCollector collector, IMetrics metrics,
ErrorMessageService errorMessageService, IDatabase db)
ErrorMessageService errorMessageService, CommandMessageService commandMessageService)
{
_client = client;
_logger = logger.ForContext<Bot>();
@@ -50,7 +50,7 @@ namespace PluralKit.Bot
_collector = collector;
_metrics = metrics;
_errorMessageService = errorMessageService;
_db = db;
_commandMessageService = commandMessageService;
}
public void Init()
@@ -183,7 +183,7 @@ namespace PluralKit.Bot
await UpdateBotStatus();
// Clean up message cache in postgres
await _db.Execute(conn => conn.QueryAsync("select from cleanup_command_message()"));
await _commandMessageService.CleanupOldMessages();
// Collect some stats, submit them to the metrics backend
await _collector.CollectStats();

10
PluralKit.Bot/CommandSystem/Context.cs
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@@ -28,6 +28,7 @@ namespace PluralKit.Bot
private readonly ModelRepository _repo;
private readonly PKSystem _senderSystem;
private readonly IMetrics _metrics;
private readonly CommandMessageService _commandMessageService;
private Command _currentCommand;
@@ -44,6 +45,7 @@ namespace PluralKit.Bot
_repo = provider.Resolve<ModelRepository>();
_metrics = provider.Resolve<IMetrics>();
_provider = provider;
_commandMessageService = provider.Resolve<CommandMessageService>();
_parameters = new Parameters(message.Content.Substring(commandParseOffset));
}
@@ -73,10 +75,14 @@ namespace PluralKit.Bot
if (embed != null && !this.BotHasAllPermissions(Permissions.EmbedLinks))
throw new PKError("PluralKit does not have permission to send embeds in this channel. Please ensure I have the **Embed Links** permission enabled.");
var msg = await Channel.SendMessageFixedAsync(text, embed: embed, mentions: mentions);
if (embed != null)
if (embed != null)
{
// Sensitive information that might want to be deleted by :x: reaction is typically in an embed format (member cards, for example)
// This may need to be changed at some point but works well enough for now
await _db.Execute(conn => _repo.SaveCommandMessage(conn, msg.Id, Author.Id));
await _commandMessageService.RegisterMessage(msg.Id, Author.Id);
}
return msg;
}

56
PluralKit.Bot/Handlers/ReactionAdded.cs
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@@ -15,14 +15,16 @@ namespace PluralKit.Bot
{
private readonly IDatabase _db;
private readonly ModelRepository _repo;
private readonly CommandMessageService _commandMessageService;
private readonly EmbedService _embeds;
private readonly ILogger _logger;
public ReactionAdded(EmbedService embeds, ILogger logger, IDatabase db, ModelRepository repo)
public ReactionAdded(EmbedService embeds, ILogger logger, IDatabase db, ModelRepository repo, CommandMessageService commandMessageService)
{
_embeds = embeds;
_db = db;
_repo = repo;
_commandMessageService = commandMessageService;
_logger = logger.ForContext<ReactionAdded>();
}
@@ -43,40 +45,54 @@ namespace PluralKit.Bot
// Ignore reactions from bots (we can't DM them anyway)
if (evt.User.IsBot) return;
Task<FullMessage> GetMessage() =>
_db.Execute(c => _repo.GetMessage(c, evt.Message.Id));
FullMessage msg;
CommandMessage cmdmsg;
switch (evt.Emoji.Name)
{
// Message deletion
case "\u274C": // Red X
if ((msg = await GetMessage()) != null)
await HandleDeleteReaction(evt, msg);
else if ((cmdmsg = await _db.Execute(conn => _repo.GetCommandMessage(conn, evt.Message.Id))) != null)
await HandleCommandDeleteReaction(evt, cmdmsg);
break;
{
await using var conn = await _db.Obtain();
var msg = await _repo.GetMessage(conn, evt.Message.Id);
if (msg != null)
{
await HandleProxyDeleteReaction(evt, msg);
break;
}
var commandMsg = await _commandMessageService.GetCommandMessage(conn, evt.Message.Id);
if (commandMsg != null)
await HandleCommandDeleteReaction(evt, commandMsg);
break;
}
case "\u2753": // Red question mark
case "\u2754": // White question mark
if ((msg = await GetMessage()) != null)
{
await using var conn = await _db.Obtain();
var msg = await _repo.GetMessage(conn, evt.Message.Id);
if (msg != null)
await HandleQueryReaction(evt, msg);
break;
}
case "\U0001F514": // Bell
case "\U0001F6CE": // Bellhop bell
case "\U0001F3D3": // Ping pong paddle (lol)
case "\u23F0": // Alarm clock
case "\u2757": // Exclamation mark
if ((msg = await GetMessage()) != null)
{
await using var conn = await _db.Obtain();
var msg = await _repo.GetMessage(conn, evt.Message.Id);
if (msg != null)
await HandlePingReaction(evt, msg);
break;
}
}
}
private async ValueTask HandleDeleteReaction(MessageReactionAddEventArgs evt, FullMessage msg)
private async ValueTask HandleProxyDeleteReaction(MessageReactionAddEventArgs evt, FullMessage msg)
{
if (!evt.Channel.BotHasAllPermissions(Permissions.ManageMessages)) return;
@@ -97,10 +113,12 @@ namespace PluralKit.Bot
private async ValueTask HandleCommandDeleteReaction(MessageReactionAddEventArgs evt, CommandMessage msg)
{
if (!evt.Channel.BotHasAllPermissions(Permissions.ManageMessages)) return;
if (!evt.Channel.BotHasAllPermissions(Permissions.ManageMessages))
return;
// Can only delete your own message
if (msg.author_id != evt.User.Id) return;
if (msg.AuthorId != evt.User.Id)
return;
try
{

1
PluralKit.Bot/Modules.cs
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@@ -74,6 +74,7 @@ namespace PluralKit.Bot
builder.RegisterType<LastMessageCacheService>().AsSelf().SingleInstance();
builder.RegisterType<LoggerCleanService>().AsSelf().SingleInstance();
builder.RegisterType<ErrorMessageService>().AsSelf().SingleInstance();
builder.RegisterType<CommandMessageService>().AsSelf().SingleInstance();
// Sentry stuff
builder.Register(_ => new Scope(null)).AsSelf().InstancePerLifetimeScope();

50
PluralKit.Bot/Services/CommandMessageService.cs Normal file
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@@ -0,0 +1,50 @@
using System.Threading.Tasks;
using NodaTime;
using PluralKit.Core;
using Serilog;
namespace PluralKit.Bot
{
public class CommandMessageService
{
private static readonly Duration CommandMessageRetention = Duration.FromSeconds(2);
private readonly IDatabase _db;
private readonly ModelRepository _repo;
private readonly IClock _clock;
private readonly ILogger _logger;
public CommandMessageService(IDatabase db, ModelRepository repo, IClock clock, ILogger logger)
{
_db = db;
_repo = repo;
_clock = clock;
_logger = logger;
}
public async Task RegisterMessage(ulong messageId, ulong authorId)
{
_logger.Debug("Registering command response {MessageId} from author {AuthorId}", messageId, authorId);
await _db.Execute(conn => _repo.SaveCommandMessage(conn, messageId, authorId));
}
public async Task<CommandMessage> GetCommandMessage(IPKConnection conn, ulong messageId)
{
return await _repo.GetCommandMessage(conn, messageId);
}
public async Task CleanupOldMessages()
{
var deleteThresholdInstant = _clock.GetCurrentInstant() - CommandMessageRetention;
var deleteThresholdSnowflake = DiscordUtils.InstantToSnowflake(deleteThresholdInstant);
var deletedRows = await _db.Execute(conn => _repo.DeleteCommandMessagesBefore(conn, deleteThresholdSnowflake));
_logger.Information("Pruned {DeletedRows} command messages older than retention {Retention} (older than {DeleteThresholdInstant} / {DeleteThresholdSnowflake})",
deletedRows, CommandMessageRetention, deleteThresholdInstant, deleteThresholdSnowflake);
}
}
}

15
PluralKit.Core/Database/Migrations/11.sql
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@@ -1,17 +1,10 @@
-- SCHEMA VERSION 11: (insert date) --
-- SCHEMA VERSION 11: 2020-10-23 --
-- Create command message table --
create table command_message
create table command_messages
(
message_id bigint primary key,
author_id bigint not null,
timestamp timestamp not null default now()
message_id bigint primary key not null,
author_id bigint not null
);
create function cleanup_command_message() returns void as $$
begin
delete from command_message where timestamp < now() - interval '2 hours';
end;
$$ language plpgsql;
update info set schema_version = 11;

23
PluralKit.Core/Database/Repository/ModelRepository.CommandMessage.cs
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@@ -1,5 +1,3 @@
using System.Collections.Generic;
using System.Data;
using System.Threading.Tasks;
using Dapper;
@@ -8,17 +6,22 @@ namespace PluralKit.Core
{
public partial class ModelRepository
{
public Task SaveCommandMessage(IPKConnection conn, ulong message_id, ulong author_id) =>
conn.QueryAsync("insert into command_message (message_id, author_id) values (@Message, @Author)",
new {Message = message_id, Author = author_id });
public Task SaveCommandMessage(IPKConnection conn, ulong messageId, ulong authorId) =>
conn.QueryAsync("insert into command_messages (message_id, author_id) values (@Message, @Author)",
new {Message = messageId, Author = authorId });
public Task<CommandMessage> GetCommandMessage(IPKConnection conn, ulong message_id) =>
conn.QuerySingleOrDefaultAsync<CommandMessage>("select message_id, author_id from command_message where message_id = @Message",
new {Message = message_id});
}
public Task<CommandMessage> GetCommandMessage(IPKConnection conn, ulong messageId) =>
conn.QuerySingleOrDefaultAsync<CommandMessage>("select * from command_messages where message_id = @Message",
new {Message = messageId});
public Task<int> DeleteCommandMessagesBefore(IPKConnection conn, ulong messageIdThreshold) =>
conn.ExecuteAsync("delete from command_messages where message_id < @Threshold",
new {Threshold = messageIdThreshold});
}
public class CommandMessage
{
public ulong author_id { get; set; }
public ulong AuthorId { get; set; }
public ulong MessageId { get; set; }
}
}