thepraandClaude Opus 5.5
bbeeda7268
Lemmy turns an upvote into a downvote with a Dislike alone (and back with a Like), so the like stayed counted next to the downvote. Now an account has one vote on a post: a Dislike takes its like away, a Like its downvote. The Lemmy scenario's relayed votes were never failing for that reason only: Lemmy 1.0 sends what it queued every 30 seconds, and the check gave up after 30. It waits a minute now, and both votes are plain checks: 22 pass, the moderator's removal stays an expected failure (P7). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw
59 lines
2.0 KiB
C#
59 lines
2.0 KiB
C#
using MongoDB.Driver;
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using MongoDB.Entities;
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using PrivaPub.Domain.Privacy;
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using PrivaPub.Models.Social;
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using PrivaPub.Models.User;
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using PrivaPub.StaticServices;
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using System.Text.Json.Nodes;
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using static PrivaPub.Federation.Objects.ActivityJson;
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using PostEntity = PrivaPub.Models.Post.Post;
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namespace PrivaPub.Federation.Inbox.Handlers
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{
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public class DislikeHandler : IActivityHandler
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{
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readonly DbEntities _dbEntities;
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public DislikeHandler(DbEntities dbEntities)
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{
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_dbEntities = dbEntities;
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}
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public string Type => "Dislike";
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public async Task Handle(JsonNode activity, ForeignAvatar actor, CancellationToken token)
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{
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var objectUri = Id(activity["object"]);
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var post = objectUri == default
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? default
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: await _dbEntities.Posts.Match(p => p.ObjectURI == objectUri && !p.DeletedAt.HasValue && p.ReblogOfPostId == null).ExecuteFirstAsync(token);
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if (post == default || !await VisibilityPolicy.RemoteCanSee(post, actor, token))
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{
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Arrival.Drop(post == default ? "unknown-object" : "not-visible");
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return;
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}
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Arrival.About(post.ObjectType ?? "Note", post.Visibility, post.CreationDate);
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try
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{
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await DB.Default.SaveAsync(new Downvote { AccountId = actor.ID, ActorURI = actor.ActorURI, PostId = post.ID, ActivityURI = Id(activity) }, token);
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}
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catch (MongoWriteException ex) when (ex.WriteError?.Category == ServerErrorCategory.DuplicateKey)
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{
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Arrival.Drop("duplicate");
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return;
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}
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Arrival.Accept("stored");
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await DB.Default.Update<PostEntity>().MatchID(post.ID).Modify(b => b.Inc(p => p.DownvotesCount, 1)).ExecuteAsync(token);
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// a vote replaces the other one: Lemmy turns an upvote into a downvote with this Dislike alone
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if (await DB.Default.Find<Favourite>().Match(f => f.PostId == post.ID && f.ActorURI == actor.ActorURI).ExecuteFirstAsync(token) is { } liked
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&& (await DB.Default.DeleteAsync<Favourite>(liked.ID)).DeletedCount > 0)
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await DB.Default.Update<PostEntity>().MatchID(post.ID).Modify(b => b.Inc(p => p.FavouritesCount, -1)).ExecuteAsync(token);
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}
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}
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}
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