48 lines
1.6 KiB
C#
48 lines
1.6 KiB
C#
 
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using PrivaPub.Federation.Actors;
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using PrivaPub.Federation.Outbox;
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using PrivaPub.Federation.Rendering;
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using PrivaPub.Models.Federation;
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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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namespace PrivaPub.Federation.Inbox.Handlers
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{
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public class JoinHandler : IActivityHandler
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{
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readonly DbEntities _dbEntities;
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readonly ILocalActorService _localActors;
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readonly IDeliveryService _delivery;
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public JoinHandler(DbEntities dbEntities, ILocalActorService localActors, IDeliveryService delivery)
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{
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_dbEntities = dbEntities;
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_localActors = localActors;
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_delivery = delivery;
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}
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public string Type => "Join";
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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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if (objectUri == default || !objectUri.StartsWith(_localActors.BaseAddress + "/", StringComparison.OrdinalIgnoreCase))
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return;
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var post = await _dbEntities.Posts.Match(p => p.ObjectURI == objectUri && !p.IsFederatedCopy && !p.DeletedAt.HasValue).ExecuteFirstAsync(token);
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var owner = post == default ? default : await _localActors.FindById(LocalActorKind.Person, post.GroupUserId, token);
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if (owner == default || string.IsNullOrEmpty(actor.InboxURL))
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return;
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await _delivery.Enqueue(owner, new[] { actor.InboxURL }, new JsonObject
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{
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["@context"] = ActivityPubRenderer.ActivityStreams,
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["id"] = owner.ActivityUri($"ignore-{Guid.NewGuid():N}"),
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["type"] = "Ignore",
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["actor"] = owner.Uri,
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["object"] = activity.DeepClone()
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}, token);
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}
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}
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}
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