74 lines
2.3 KiB
C#
74 lines
2.3 KiB
C#
 
|
using MongoDB.Entities;
|
||
|
|
|
||
|
|
using PrivaPub.Federation.Actors;
|
||
|
|
using PrivaPub.Federation.Objects;
|
||
|
|
using PrivaPub.Federation.Outbox;
|
||
|
|
using PrivaPub.Federation.Rendering;
|
||
|
|
using PrivaPub.Models.Federation;
|
||
|
|
using PrivaPub.Models.Group;
|
||
|
|
using PrivaPub.Models.Post;
|
||
|
|
using PrivaPub.Models.User;
|
||
|
|
using PrivaPub.StaticServices;
|
||
|
|
|
||
|
|
using System.Text.Json.Nodes;
|
||
|
|
|
||
|
|
using static PrivaPub.Federation.Inbox.ForeignMembers;
|
||
|
|
using static PrivaPub.Federation.Objects.ActivityJson;
|
||
|
|
|
||
|
|
using PostEntity = PrivaPub.Models.Post.Post;
|
||
|
|
|
||
|
|
namespace PrivaPub.Federation.Inbox.Handlers
|
||
|
|
{
|
||
|
|
public class FollowHandler : IActivityHandler
|
||
|
|
{
|
||
|
|
readonly DbEntities _dbEntities;
|
||
|
|
readonly ILocalActorService _localActors;
|
||
|
|
readonly IRemoteActorService _remoteActors;
|
||
|
|
readonly IDeliveryService _delivery;
|
||
|
|
|
||
|
|
public FollowHandler(DbEntities dbEntities, ILocalActorService localActors, IRemoteActorService remoteActors, IDeliveryService delivery)
|
||
|
|
{
|
||
|
|
_dbEntities = dbEntities;
|
||
|
|
_localActors = localActors;
|
||
|
|
_remoteActors = remoteActors;
|
||
|
|
_delivery = delivery;
|
||
|
|
}
|
||
|
|
|
||
|
|
public string Type => "Follow";
|
||
|
|
|
||
|
|
public async Task Handle(JsonNode activity, ForeignAvatar actor, CancellationToken token)
|
||
|
|
{
|
||
|
|
var follow = activity;
|
||
|
|
var follower = actor;
|
||
|
|
|
||
|
|
var target = await _localActors.FindByUri(Id(follow["object"]), token);
|
||
|
|
if (target is not { IsFederated: true } || target.Kind == LocalActorKind.Application)
|
||
|
|
return;
|
||
|
|
|
||
|
|
var existing = await _dbEntities.Followers
|
||
|
|
.Match(f => f.LocalActorId == target.Id && f.LocalActorKind == target.Kind && f.ActorURI == follower.ActorURI)
|
||
|
|
.ExecuteFirstAsync(token);
|
||
|
|
var record = existing ?? new Follower
|
||
|
|
{
|
||
|
|
LocalActorId = target.Id,
|
||
|
|
LocalActorKind = target.Kind,
|
||
|
|
ActorURI = follower.ActorURI
|
||
|
|
};
|
||
|
|
record.InboxURL = follower.InboxURL;
|
||
|
|
record.SharedInboxURL = follower.SharedInboxURL;
|
||
|
|
record.FollowActivityURI = Id(follow);
|
||
|
|
record.IsAccepted = existing?.IsAccepted == true || !target.ManuallyApprovesFollowers;
|
||
|
|
await DB.Default.SaveAsync(record, token);
|
||
|
|
|
||
|
|
if (!record.IsAccepted)
|
||
|
|
return;
|
||
|
|
|
||
|
|
if (target.Kind == LocalActorKind.Group)
|
||
|
|
await AddForeignMember(target.Id, follower.ActorURI, token);
|
||
|
|
|
||
|
|
var accept = ActivityPubRenderer.Accept(target, follow, $"accept-{record.ID}-{DateTime.UtcNow.Ticks}");
|
||
|
|
await _delivery.Enqueue(target, new[] { follower.InboxURL }, accept, token);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|