P6: custom emoji, fuller remote profiles, and polls both ways

- Custom emoji (Emoji tags) on posts, display names, bios and profile fields, at most 64 per object, proxied, in
  Status.emojis and Account.emojis.
- Remote profiles keep their header, profile fields, locked flag, published date, movedTo, indexable, memorial and
  image descriptions (a locked GoToSocial account no longer shows as open).
- Polls: incoming Questions (Mastodon, Misskey, Pleroma, GoToSocial shapes) with counts, voters, end and closed;
  our own polls from the Mastodon API go out as Questions; votes in are counted once per voter and never become
  replies; personas vote on other servers' polls with one Note per choice; counts refresh with an Update at most every
  three minutes; a poll closes on time and tells its voters and its author. GET /api/v1/polls/:id and POST
  /api/v1/polls/:id/votes.
- An Update without a newer `updated` only refreshes poll, video, audio and event details and leaves no revision.

Checked live against GoToSocial: each side's poll reaches the other as a poll and each side's vote is counted.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB

PrivaPub/Api/Mastodon/Controllers/PollsController.cs

@@ -0,0 +1,54 @@
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+
+using PrivaPub.Api.Mastodon.Infrastructure;
+using PrivaPub.Api.Mastodon.Mappers;
+using PrivaPub.Domain.Privacy;
+using PrivaPub.Domain.Statuses;
+using PrivaPub.Models.Post;
+using PrivaPub.StaticServices;
+
+using PostEntity = PrivaPub.Models.Post.Post;
+
+namespace PrivaPub.Api.Mastodon.Controllers
+{
+	public class PollsController : MastodonController
+	{
+		readonly DbEntities _dbEntities;
+		readonly MastodonMapper _mapper;
+		readonly IPollService _polls;
+
+		public PollsController(DbEntities dbEntities, MastodonMapper mapper, IPollService polls)
+		{
+			_dbEntities = dbEntities;
+			_mapper = mapper;
+			_polls = polls;
+		}
+
+		[HttpGet("/api/v1/polls/{id}"), Scope("read:statuses", requiresUser: false), AllowAnonymous]
+		public async Task<IActionResult> Get(string id, CancellationToken token)
+		{
+			var post = await Visible(id, token);
+			return post?.Poll == default ? NotFoundError() : Json(_mapper.Poll(post, MyId, await _polls.OwnVotes(post.ID, MyId, token)));
+		}
+
+		[HttpPost("/api/v1/polls/{id}/votes"), Scope("write:statuses")]
+		public async Task<IActionResult> Vote(string id, CancellationToken token)
+		{
+			var post = await Visible(id, token);
+			if (post?.Poll == default)
+				return NotFoundError();
+			var choices = Params.List("choices").Select(c => int.TryParse(c, out var index) ? index : -1).ToList();
+			var outcome = await _polls.Vote(Me, post, choices, token);
+			if (!outcome.Ok)
+				return Error(outcome.Status, outcome.Error);
+			return Json(_mapper.Poll(outcome.Post, MyId, await _polls.OwnVotes(post.ID, MyId, token)));
+		}
+
+		async Task<PostEntity> Visible(string id, CancellationToken token)
+		{
+			var post = await _dbEntities.Posts.Match(p => p.ID == id && !p.DeletedAt.HasValue).ExecuteFirstAsync(token);
+			return post != default && post.Visibility != PostVisibility.LocalGeo && await VisibilityPolicy.CanSee(post, MyId, token) ? post : default;
+		}
+	}
+}

PrivaPub/Api/Mastodon/Controllers/StatusesController.cs

@@ -44,9 +44,6 @@ namespace PrivaPub.Api.Mastodon.Controllers
 				if (existing != default)
 					return Json(await _mapper.Status(existing, MyId, token));
 			}
-			if (Params.Has("poll[options]"))
-				return Error(StatusCodes.Status422UnprocessableEntity, "Validation failed: Polls are not supported yet");
-
 			var outcome = await _statuses.Publish(Me, new StatusDraft
 			{
 				Text = Params.Get("status"),
@@ -56,7 +53,11 @@ namespace PrivaPub.Api.Mastodon.Controllers
 				Visibility = Visibility(Params.Get("visibility") ?? Me.Settings.DefaultVisibility),
 				InReplyTo = Params.Get("in_reply_to_id"),
 				Language = Params.Get("language") ?? Me.Settings.DefaultLanguage,
-				MediaIds = Params.List("media_ids")
+				MediaIds = Params.List("media_ids"),
+				Poll = Params.Has("poll[options]")
+					? new PollDraft(Params.List("poll[options]"), Params.Int("poll[expires_in]") ?? 0, Params.Bool("poll[multiple]") == true,
+						Params.Bool("poll[hide_totals]") == true)
+					: default
 			}, token);
 			if (!outcome.Ok)
 				return Error(outcome.Status, outcome.Error);

PrivaPub/Api/Mastodon/Controllers/TimelinesController.cs

@@ -162,7 +162,8 @@ namespace PrivaPub.Api.Mastodon.Controllers
 			[NotificationType.FollowRequest] = "follow_request",
 			[NotificationType.Favourite] = "favourite",
 			[NotificationType.Reblog] = "reblog",
-			[NotificationType.Update] = "update"
+			[NotificationType.Update] = "update",
+			[NotificationType.Poll] = "poll"
 		};
 
 		readonly MastodonMapper _mapper;

PrivaPub/Api/Mastodon/Entities/Entities.cs

@@ -25,12 +25,24 @@ namespace PrivaPub.Api.Mastodon.Entities
 		public string LastStatusAt { get; set; }
 		public bool? HideCollections { get; set; }
 		public bool Noindex { get; set; } = true;
-		public List<object> Emojis { get; set; } = new();
+		public List<CustomEmojiEntity> Emojis { get; set; } = new();
 		public List<object> Roles { get; set; } = new();
+		public bool? Memorial { get; set; }
+		public string AvatarDescription { get; set; } = string.Empty;
+		public string HeaderDescription { get; set; } = string.Empty;
 		public List<Field> Fields { get; set; } = new();
 		public Source Source { get; set; }
 	}
 
+	public class CustomEmojiEntity
+	{
+		public string Shortcode { get; set; }
+		public string Url { get; set; }
+		public string StaticUrl { get; set; }
+		public bool VisibleInPicker { get; set; }
+		public string Category { get; set; }
+	}
+
 	public class Field
 	{
 		public string Name { get; set; }
@@ -149,6 +161,26 @@ namespace PrivaPub.Api.Mastodon.Entities
 		public int Down { get; set; }
 	}
 
+	public class PollEntity
+	{
+		public string Id { get; set; }
+		public string ExpiresAt { get; set; }
+		public bool Expired { get; set; }
+		public bool Multiple { get; set; }
+		public int VotesCount { get; set; }
+		public int? VotersCount { get; set; }
+		public bool? Voted { get; set; }
+		public List<int> OwnVotes { get; set; }
+		public List<PollOptionEntity> Options { get; set; } = new();
+		public List<CustomEmojiEntity> Emojis { get; set; } = new();
+	}
+
+	public class PollOptionEntity
+	{
+		public string Title { get; set; }
+		public int? VotesCount { get; set; }
+	}
+
 	public class PreviewCard
 	{
 		public string Url { get; set; }
@@ -183,7 +215,7 @@ namespace PrivaPub.Api.Mastodon.Entities
 		public string Content { get; set; } = string.Empty;
 		public string CreatedAt { get; set; }
 		public string EditedAt { get; set; }
-		public List<object> Emojis { get; set; } = new();
+		public List<CustomEmojiEntity> Emojis { get; set; } = new();
 		public int RepliesCount { get; set; }
 		public int ReblogsCount { get; set; }
 		public int FavouritesCount { get; set; }
@@ -199,7 +231,7 @@ namespace PrivaPub.Api.Mastodon.Entities
 		public List<StatusMention> Mentions { get; set; } = new();
 		public List<StatusTag> Tags { get; set; } = new();
 		public PreviewCard Card { get; set; }
-		public object Poll { get; set; }
+		public PollEntity Poll { get; set; }
 		public Application Application { get; set; }
 		public string Language { get; set; }
 		public string Text { get; set; }
@@ -289,7 +321,7 @@ namespace PrivaPub.Api.Mastodon.Entities
 		public string CreatedAt { get; set; }
 		public Account Account { get; set; }
 		public List<MediaAttachment> MediaAttachments { get; set; } = new();
-		public List<object> Emojis { get; set; } = new();
+		public List<CustomEmojiEntity> Emojis { get; set; } = new();
 	}
 
 	public class StatusSource

PrivaPub/Api/Mastodon/Mappers/MastodonMapper.cs

@@ -8,6 +8,7 @@ using PrivaPub.Federation.Rendering;
 using PrivaPub.Models.Federation;
 using PrivaPub.Models.Group;
 using PrivaPub.Models.Post;
+using PrivaPub.Domain.Statuses;
 using PrivaPub.Models.Social;
 using PrivaPub.Models.User;
 using PrivaPub.StaticServices;
@@ -103,8 +104,15 @@ namespace PrivaPub.Api.Mastodon.Mappers
 			DisplayName = foreign.Name ?? foreign.UserName ?? string.Empty,
 			Bot = foreign.AvatarType is AvatarType.Service or AvatarType.Application,
 			Group = foreign.AvatarType == AvatarType.Group,
+			Locked = foreign.IsLocked,
 			Discoverable = foreign.IsDiscoverable,
-			CreatedAt = MastodonJson.Day(foreign.CreatedAt),
+			Indexable = foreign.IsIndexable,
+			Memorial = foreign.IsMemorial ? true : default(bool?),
+			CreatedAt = MastodonJson.Day(foreign.Published ?? foreign.CreatedAt),
+			Emojis = Emojis(foreign.Emojis),
+			Fields = foreign.Fields.Select(f => new Field { Name = f.Key, Value = f.Value }).ToList(),
+			AvatarDescription = foreign.PictureDescription ?? string.Empty,
+			HeaderDescription = foreign.HeaderDescription ?? string.Empty,
 			Note = foreign.Biography ?? string.Empty,
 			Url = foreign.Url ?? foreign.ActorURI,
 			Uri = foreign.ActorURI,
@@ -158,6 +166,11 @@ namespace PrivaPub.Api.Mastodon.Mappers
 				? new HashSet<string>()
 				: (await DB.Default.Find<Bookmark>().Match(b => b.AvatarId == viewerId && ids.Contains(b.PostId)).ExecuteAsync(token)).Select(b => b.PostId).ToHashSet();
 			var pinned = (await DB.Default.Find<Pin>().Match(p => ids.Contains(p.PostId)).ExecuteAsync(token)).Select(p => p.PostId).ToHashSet();
+			var pollIds = all.Where(p => p.Poll != default).Select(p => p.ID).ToList();
+			var ownVotes = viewerId == default || pollIds.Count == 0
+				? new Dictionary<string, List<int>>()
+				: (await DB.Default.Find<PollVote>().Match(v => pollIds.Contains(v.PostId) && v.VoterAccountId == viewerId && v.IsLocalVoter).ExecuteAsync(token))
+					.GroupBy(v => v.PostId).ToDictionary(g => g.Key, g => g.Select(v => v.Choice).ToList());
 			var hidden = viewerId == default
 				? new HashSet<string>()
 				: await Domain.Relationships.Hidden.AuthorsHiddenFrom(viewerId, all.Select(p => p.ActorURI), forNotifications: false, token);
@@ -194,6 +207,8 @@ namespace PrivaPub.Api.Mastodon.Mappers
 					Language = post.Language,
 					MediaAttachments = post.Media.Select(Media).ToList(),
 					Card = Card(post),
+					Poll = Poll(post, viewerId, ownVotes.GetValueOrDefault(post.ID)),
+					Emojis = Emojis(post.Emojis),
 					Privapub = Extension(post),
 					Mentions = post.Mentions.Select(m => Mention(m, mentionAccounts)).Where(m => m != default).ToList(),
 					Tags = post.Tags.Select(t => new StatusTag { Name = t, Url = ActivityPubRenderer.TagUrl(_localActors.BaseAddress, t) }).ToList()
@@ -270,6 +285,30 @@ namespace PrivaPub.Api.Mastodon.Mappers
 			}
 		}
 
+		public PollEntity Poll(PostEntity post, string viewerId, IReadOnlyCollection<int> ownVotes)
+		{
+			if (post.Poll is not { } poll)
+				return default;
+			var expired = PollService.Ended(poll);
+			var hidden = poll.HideTotals && !expired && post.GroupUserId != viewerId;
+			return new PollEntity
+			{
+				Id = post.ID,
+				ExpiresAt = poll.ExpiresAt is { } ends ? MastodonJson.Time(ends) : default,
+				Expired = expired,
+				Multiple = poll.Multiple,
+				VotesCount = poll.Options.Sum(o => o.Votes),
+				VotersCount = poll.Multiple ? poll.VotersCount : poll.VotersCount ?? poll.Options.Sum(o => o.Votes),
+				Voted = viewerId == default ? default(bool?) : ownVotes?.Count > 0 || post.GroupUserId == viewerId,
+				OwnVotes = viewerId == default ? default : ownVotes?.ToList() ?? new List<int>(),
+				Options = poll.Options.Select(o => new PollOptionEntity { Title = o.Title, VotesCount = hidden ? default(int?) : o.Votes }).ToList(),
+				Emojis = Emojis(post.Emojis.Where(e => poll.Options.Any(o => o.Title.Contains($":{e.Shortcode}:"))))
+			};
+		}
+
+		List<CustomEmojiEntity> Emojis(IEnumerable<CustomEmoji> emojis) =>
+			emojis?.Select(e => new CustomEmojiEntity { Shortcode = e.Shortcode, Url = Proxied(e.URL), StaticUrl = Proxied(e.URL) }).ToList() ?? new();
+
 		PrivaPubStatus Extension(PostEntity post) => new()
 		{
 			ObjectType = post.ObjectType,

PrivaPub/Domain/Social/Notifications.cs

@@ -10,7 +10,7 @@ namespace PrivaPub.Domain.Social
 		public static async Task Add(string avatarId, NotificationType type, string fromAccountId, string fromActorUri, string postId,
 			CancellationToken token)
 		{
-			if (string.IsNullOrEmpty(avatarId) || avatarId == fromAccountId)
+			if (string.IsNullOrEmpty(avatarId) || avatarId == fromAccountId && type != NotificationType.Poll)
 				return;
 			if ((await Relationships.Hidden.AuthorsHiddenFrom(avatarId, new[] { fromActorUri }, forNotifications: true, token)).Count > 0)
 				return;

PrivaPub/Domain/Statuses/PollService.cs

@@ -0,0 +1,300 @@
+using MongoDB.Driver;
+using MongoDB.Entities;
+
+using PrivaPub.Domain.Social;
+using PrivaPub.Federation.Actors;
+using PrivaPub.Federation.Inbox.Handlers;
+using PrivaPub.Federation.Outbox;
+using PrivaPub.Federation.Rendering;
+using PrivaPub.Infrastructure.Jobs;
+using PrivaPub.Models.Federation;
+using PrivaPub.Models.Jobs;
+using PrivaPub.Models.Post;
+using PrivaPub.Models.Social;
+using PrivaPub.Models.User;
+using PrivaPub.StaticServices;
+
+using System.Text.Json.Nodes;
+
+using PostEntity = PrivaPub.Models.Post.Post;
+
+namespace PrivaPub.Domain.Statuses
+{
+	public sealed record PollDraft(IReadOnlyList<string> Options, int ExpiresIn, bool Multiple, bool HideTotals);
+
+	public interface IPollService
+	{
+		string Invalid(PollDraft draft);
+		PostPoll Create(PollDraft draft);
+		Task Scheduled(PostEntity post, CancellationToken token);
+		Task<StatusOutcome> Vote(LocalActor me, PostEntity post, IReadOnlyList<int> choices, CancellationToken token);
+		Task Receive(PostEntity post, ForeignAvatar voter, string choice, string activityId, CancellationToken token);
+		Task<HashSet<int>> OwnVotes(string postId, string avatarId, CancellationToken token);
+	}
+
+	public class PollService : IPollService
+	{
+		public const int MaxOptions = 4;
+		public const int MaxOptionLength = 50;
+		public const int MinExpiration = 300;
+		public const int MaxExpiration = 2_629_746;
+		static readonly TimeSpan RefreshEvery = TimeSpan.FromMinutes(3);
+
+		readonly DbEntities _dbEntities;
+		readonly ILocalActorService _localActors;
+		readonly IDeliveryService _delivery;
+		readonly IJobQueue _queue;
+
+		public PollService(DbEntities dbEntities, ILocalActorService localActors, IDeliveryService delivery, IJobQueue queue)
+		{
+			_dbEntities = dbEntities;
+			_localActors = localActors;
+			_delivery = delivery;
+			_queue = queue;
+		}
+
+		public string Invalid(PollDraft draft)
+		{
+			var options = draft.Options.Select(o => o?.Trim()).ToList();
+			if (options.Count is < 2 or > MaxOptions)
+				return $"Validation failed: A poll needs between 2 and {MaxOptions} options";
+			if (options.Any(o => string.IsNullOrEmpty(o) || o.Length > MaxOptionLength))
+				return $"Validation failed: Poll options must be between 1 and {MaxOptionLength} characters";
+			if (options.Distinct(StringComparer.Ordinal).Count() != options.Count)
+				return "Validation failed: Poll options must be unique";
+			if (draft.ExpiresIn is < MinExpiration or > MaxExpiration)
+				return "Validation failed: The poll's duration is out of range";
+			return default;
+		}
+
+		public PostPoll Create(PollDraft draft) => new()
+		{
+			Options = draft.Options.Select(o => new PollOption { Title = o.Trim() }).ToList(),
+			Multiple = draft.Multiple,
+			HideTotals = draft.HideTotals,
+			ExpiresAt = DateTime.UtcNow.AddSeconds(draft.ExpiresIn),
+			VotersCount = 0
+		};
+
+		public async Task Scheduled(PostEntity post, CancellationToken token)
+		{
+			if (post.Poll?.ExpiresAt is not { } ends)
+				return;
+			await _queue.EnqueueMany(new[]
+			{
+				new Job { Kind = JobKind.PollClose, Payload = post.ID, Host = LocalHost, DedupeKey = $"poll-close|{post.ID}", RunAt = ends }
+			}, token);
+		}
+
+		public async Task<StatusOutcome> Vote(LocalActor me, PostEntity post, IReadOnlyList<int> choices, CancellationToken token)
+		{
+			var poll = post.Poll;
+			if (poll == default)
+				return StatusOutcome.Fail(StatusCodes.Status404NotFound, "Record not found");
+			if (Ended(poll))
+				return StatusOutcome.Fail(StatusCodes.Status422UnprocessableEntity, "Validation failed: The poll has already ended");
+			if (!post.IsFederatedCopy && post.GroupUserId == me.Id)
+				return StatusOutcome.Fail(StatusCodes.Status422UnprocessableEntity, "Validation failed: You cannot vote in your own poll");
+			var picked = choices.Distinct().ToList();
+			if (picked.Count == 0 || picked.Any(c => c < 0 || c >= poll.Options.Count) || !poll.Multiple && picked.Count > 1)
+				return StatusOutcome.Fail(StatusCodes.Status422UnprocessableEntity, "Validation failed: The choices are invalid");
+			if (await DB.Default.Find<PollVote>().Match(v => v.PostId == post.ID && v.ActorURI == me.Uri).ExecuteAnyAsync(token))
+				return StatusOutcome.Fail(StatusCodes.Status422UnprocessableEntity, "Validation failed: You have already voted on this poll");
+
+			foreach (var choice in picked)
+				await DB.Default.SaveAsync(new PollVote
+				{
+					PostId = post.ID, VoterAccountId = me.Id, ActorURI = me.Uri, IsLocalVoter = true, Choice = choice,
+					ActivityURI = me.Uri + $"#votes/{post.ID}/{choice}"
+				}, token);
+			await Count(post, picked, newVoter: true, token);
+
+			if (post.IsFederatedCopy)
+				await SendVotes(me, post, picked, token);
+			else
+				await Refreshed(post, token);
+			await Scheduled(post, token);
+			return new StatusOutcome(await _dbEntities.Posts.MatchID(post.ID).ExecuteFirstAsync(token));
+		}
+
+		public async Task Receive(PostEntity post, ForeignAvatar voter, string choice, string activityId, CancellationToken token)
+		{
+			var poll = post.Poll;
+			if (poll == default || post.IsFederatedCopy || Ended(poll) || !LikeHandler.MaySee(post, voter))
+				return;
+			var index = poll.Options.FindIndex(o => o.Title == choice);
+			if (index < 0)
+				return;
+			var earlier = await DB.Default.Find<PollVote>().Match(v => v.PostId == post.ID && v.ActorURI == voter.ActorURI).ExecuteAsync(token);
+			if (earlier.Count > 0 && (!poll.Multiple || earlier.Any(v => v.Choice == index)))
+				return;
+			try
+			{
+				await DB.Default.SaveAsync(new PollVote
+				{
+					PostId = post.ID, VoterAccountId = voter.ID, ActorURI = voter.ActorURI, Choice = index, ActivityURI = activityId
+				}, token);
+			}
+			catch (MongoWriteException ex) when (ex.WriteError?.Category == ServerErrorCategory.DuplicateKey)
+			{
+				return;
+			}
+			await Count(post, new[] { index }, newVoter: earlier.Count == 0, token);
+			await Refreshed(post, token);
+		}
+
+		public async Task<HashSet<int>> OwnVotes(string postId, string avatarId, CancellationToken token) =>
+			avatarId == default
+				? new HashSet<int>()
+				: (await DB.Default.Find<PollVote>().Match(v => v.PostId == postId && v.VoterAccountId == avatarId && v.IsLocalVoter).ExecuteAsync(token))
+					.Select(v => v.Choice).ToHashSet();
+
+		public static bool Ended(PostPoll poll) => poll.ClosedAt.HasValue || poll.ExpiresAt <= DateTime.UtcNow;
+
+		async Task Count(PostEntity post, IReadOnlyList<int> choices, bool newVoter, CancellationToken token)
+		{
+			var update = DB.Default.Update<PostEntity>().MatchID(post.ID);
+			foreach (var choice in choices)
+				update = update.Modify(b => b.Inc($"{nameof(PostEntity.Poll)}.{nameof(PostPoll.Options)}.{choice}.{nameof(PollOption.Votes)}", 1));
+			if (newVoter && post.Poll.VotersCount.HasValue)
+				update = update.Modify(b => b.Inc($"{nameof(PostEntity.Poll)}.{nameof(PostPoll.VotersCount)}", 1));
+			await update.ExecuteAsync(token);
+		}
+
+		async Task SendVotes(LocalActor me, PostEntity post, IReadOnlyList<int> choices, CancellationToken token)
+		{
+			var owner = await _dbEntities.ForeignAvatars.Match(f => f.ActorURI == post.ActorURI).ExecuteFirstAsync(token);
+			if (string.IsNullOrEmpty(owner?.InboxURL))
+				return;
+			foreach (var choice in choices)
+			{
+				var voteId = me.Uri + $"#votes/{post.ID}/{choice}";
+				await _delivery.Enqueue(me, new[] { owner.InboxURL }, new JsonObject
+				{
+					["@context"] = ActivityPubRenderer.ActivityStreams,
+					["id"] = voteId + "/activity",
+					["type"] = "Create",
+					["actor"] = me.Uri,
+					["to"] = new JsonArray(owner.ActorURI),
+					["object"] = new JsonObject
+					{
+						["id"] = voteId,
+						["type"] = "Note",
+						["name"] = post.Poll.Options[choice].Title,
+						["attributedTo"] = me.Uri,
+						["to"] = new JsonArray(owner.ActorURI),
+						["inReplyTo"] = post.ObjectURI
+					}
+				}, token);
+			}
+		}
+
+		async Task Refreshed(PostEntity post, CancellationToken token)
+		{
+			var bucket = DateTime.UtcNow.Ticks / RefreshEvery.Ticks;
+			await _queue.EnqueueMany(new[]
+			{
+				new Job
+				{
+					Kind = JobKind.PollRefresh, Payload = post.ID, Host = LocalHost, DedupeKey = $"poll-refresh|{post.ID}|{bucket}",
+					RunAt = new DateTime((bucket + 1) * RefreshEvery.Ticks, DateTimeKind.Utc)
+				}
+			}, token);
+		}
+
+		string LocalHost => new Uri(_localActors.BaseAddress).Host;
+	}
+
+	public class PollRefreshJob : IJobHandler
+	{
+		readonly DbEntities _dbEntities;
+		readonly ILocalActorService _localActors;
+		readonly IOutboxPublisher _outbox;
+
+		public PollRefreshJob(DbEntities dbEntities, ILocalActorService localActors, IOutboxPublisher outbox)
+		{
+			_dbEntities = dbEntities;
+			_localActors = localActors;
+			_outbox = outbox;
+		}
+
+		public virtual JobKind Kind => JobKind.PollRefresh;
+		public int Concurrency => 1;
+		public int MaxAttempts => 3;
+		public int PerHostLimit => 1;
+
+		public virtual async Task<JobOutcome> Handle(Job job, CancellationToken token)
+		{
+			var post = await _dbEntities.Posts.MatchID(job.Payload).ExecuteFirstAsync(token);
+			if (post?.Poll == default || post.IsFederatedCopy || post.DeletedAt.HasValue)
+				return JobOutcome.Done;
+			var author = await _localActors.FindById(LocalActorKind.Person, post.GroupUserId, token);
+			if (author == default)
+				return JobOutcome.Done;
+			await Closing(post, author, token);
+			if (!post.IsLocalOnly)
+				await _outbox.Publish(author, post, Update(post, author), token);
+			return JobOutcome.Done;
+		}
+
+		protected virtual Task Closing(PostEntity post, LocalActor author, CancellationToken token) => Task.CompletedTask;
+
+		static JsonObject Update(PostEntity post, LocalActor author)
+		{
+			var question = post.Visibility == PostVisibility.Direct
+				? ActivityPubRenderer.DirectNote(post, author, Array.Empty<(string, string)>(), post.ContextURI)
+				: ActivityPubRenderer.Note(post, author, default, post.InReplyToURI);
+			question["to"] = new JsonArray(post.To.Select(t => (JsonNode)t).ToArray());
+			question["cc"] = new JsonArray(post.Cc.Select(c => (JsonNode)c).ToArray());
+			return new JsonObject
+			{
+				["@context"] = ActivityPubRenderer.Context(),
+				["id"] = author.ActivityUri($"update-{post.ID}-poll-{DateTime.UtcNow.Ticks}"),
+				["type"] = "Update",
+				["actor"] = author.Uri,
+				["to"] = question["to"]!.DeepClone(),
+				["cc"] = question["cc"]!.DeepClone(),
+				["object"] = question
+			};
+		}
+	}
+
+	public class PollCloseJob : PollRefreshJob
+	{
+		readonly DbEntities _posts;
+
+		public PollCloseJob(DbEntities dbEntities, ILocalActorService localActors, IOutboxPublisher outbox) : base(dbEntities, localActors, outbox)
+		{
+			_posts = dbEntities;
+		}
+
+		public override JobKind Kind => JobKind.PollClose;
+
+		public override async Task<JobOutcome> Handle(Job job, CancellationToken token)
+		{
+			var post = await _posts.Posts.MatchID(job.Payload).ExecuteFirstAsync(token);
+			if (post?.Poll == default || post.DeletedAt.HasValue)
+				return JobOutcome.Done;
+			if (!post.IsFederatedCopy)
+				return await base.Handle(job, token);
+			await Notify(post, post.AuthorAccountId, post.ActorURI, token);
+			return JobOutcome.Done;
+		}
+
+		protected override async Task Closing(PostEntity post, LocalActor author, CancellationToken token)
+		{
+			post.Poll.ClosedAt ??= DateTime.UtcNow;
+			await DB.Default.Update<PostEntity>().MatchID(post.ID).Modify(p => p.Poll.ClosedAt, post.Poll.ClosedAt).ExecuteAsync(token);
+			await Notify(post, author.Id, author.Uri, token);
+		}
+
+		public static async Task Notify(PostEntity post, string authorAccountId, string authorUri, CancellationToken token)
+		{
+			var voters = await DB.Default.Find<PollVote>().Match(v => v.PostId == post.ID && v.IsLocalVoter).ExecuteAsync(token);
+			foreach (var voter in voters.Select(v => v.VoterAccountId).Distinct())
+				await Notifications.Add(voter, NotificationType.Poll, authorAccountId, authorUri, post.ID, token);
+			if (!post.IsFederatedCopy)
+				await Notifications.Add(post.GroupUserId, NotificationType.Poll, post.GroupUserId, authorUri, post.ID, token);
+		}
+	}
+}

PrivaPub/Domain/Statuses/StatusService.cs

@@ -39,6 +39,7 @@ namespace PrivaPub.Domain.Statuses
 		public double? Latitude { get; init; }
 		public double? Longitude { get; init; }
 		public double? RangeKm { get; init; }
+		public PollDraft Poll { get; init; }
 	}
 
 	public sealed record StatusOutcome(PostEntity Post, int Status = StatusCodes.Status200OK, string Error = default)
@@ -69,10 +70,12 @@ namespace PrivaPub.Domain.Statuses
 		readonly IFanout _fanout;
 		readonly IMediaService _media;
 		readonly IGroupDistributor _groups;
+		readonly IPollService _polls;
 
 		public StatusService(DbEntities dbEntities, ILocalActorService localActors, IRemoteActorService remoteActors, IDeliveryService delivery,
-			IContentRenderer content, IOutboxPublisher outbox, IFanout fanout, IMediaService media, IGroupDistributor groups)
+			IContentRenderer content, IOutboxPublisher outbox, IFanout fanout, IMediaService media, IGroupDistributor groups, IPollService polls)
 		{
+			_polls = polls;
 			_media = media;
 			_groups = groups;
 			_dbEntities = dbEntities;
@@ -89,8 +92,10 @@ namespace PrivaPub.Domain.Statuses
 			var media = await Media(author, draft.MediaIds, default, token);
 			if (media == default)
 				return StatusOutcome.Fail(StatusCodes.Status422UnprocessableEntity, "Validation failed: Media attachments are invalid");
-			if (string.IsNullOrWhiteSpace(draft.Text) && media.Count == 0)
+			if (string.IsNullOrWhiteSpace(draft.Text) && media.Count == 0 && draft.Poll == default)
 				return StatusOutcome.Fail(StatusCodes.Status422UnprocessableEntity, "Validation failed: Text can't be blank");
+			if (draft.Poll != default && _polls.Invalid(draft.Poll) is { } invalidPoll)
+				return StatusOutcome.Fail(StatusCodes.Status422UnprocessableEntity, invalidPoll);
 
 			LocalActor group = default;
 			if (!string.IsNullOrEmpty(draft.GroupId))
@@ -157,7 +162,8 @@ namespace PrivaPub.Domain.Statuses
 				InReplyToURI = parent?.ObjectURI ?? (IsRemoteUri(draft.InReplyTo) ? draft.InReplyTo : default),
 				InReplyToAccountId = parent?.AuthorAccountId ?? parent?.GroupUserId,
 				IsLocalOnly = isLocalOnly,
-				ActorURI = author.Uri
+				ActorURI = author.Uri,
+				Poll = draft.Poll == default ? default : _polls.Create(draft.Poll)
 			};
 			post.ID = (string)post.GenerateNewID();
 			post.ObjectURI = author.PostUri(post.ID);
@@ -200,6 +206,7 @@ namespace PrivaPub.Domain.Statuses
 			if (parent != default)
 				await DB.Default.Update<PostEntity>().MatchID(parent.ID).Modify(b => b.Inc(p => p.RepliesCount, 1)).ExecuteAsync(token);
 			await _fanout.Distribute(post, token);
+			await _polls.Scheduled(post, token);
 			if (create != default)
 				await _outbox.Publish(author, post, create, token);
 			if (create != default && group is { IsCircle: false } && visibility is PostVisibility.Public or PostVisibility.Unlisted)

PrivaPub/Federation/Actors/ActorDocument.cs

@@ -1,6 +1,9 @@
+using System.Globalization;
 using System.Text.Json;
+using System.Text.Json.Nodes;
 
 using PrivaPub.Federation.Objects;
+using PrivaPub.Models.Post;
 
 namespace PrivaPub.Federation.Actors
 {
@@ -23,6 +26,16 @@ namespace PrivaPub.Federation.Actors
 		public string SharedInbox { get; init; }
 		public string Icon { get; init; }
 		public bool Discoverable { get; init; } = true;
+		public bool Indexable { get; init; }
+		public bool Locked { get; init; }
+		public bool Memorial { get; init; }
+		public string Header { get; init; }
+		public string IconDescription { get; init; }
+		public string HeaderDescription { get; init; }
+		public string MovedTo { get; init; }
+		public DateTime? Published { get; init; }
+		public List<CustomEmoji> Emojis { get; init; } = new();
+		public Dictionary<string, string> Fields { get; init; } = new();
 		public IReadOnlyList<ActorKey> Keys { get; init; } = Array.Empty<ActorKey>();
 
 		public ActorKey Key(string keyId) => Keys.FirstOrDefault(k => k.Id == keyId);
@@ -52,10 +65,46 @@ namespace PrivaPub.Federation.Actors
 				SharedInbox = root.TryGetProperty("endpoints", out var endpoints) ? RemoteActorService.Text(endpoints, "sharedInbox") : default,
 				Icon = root.TryGetProperty("icon", out var icon) ? RemoteActorService.Text(icon, "url") : default,
 				Discoverable = !root.TryGetProperty("discoverable", out var discoverable) || discoverable.ValueKind != JsonValueKind.False,
-				Keys = ParseKeys(root, id)
+				Keys = ParseKeys(root, id),
+				Indexable = Flag(root, "indexable"),
+				Locked = Flag(root, "manuallyApprovesFollowers"),
+				Memorial = Flag(root, "memorial"),
+				Header = root.TryGetProperty("image", out var image) ? ObjectShapes.Image(JsonNode.Parse(image.GetRawText())) : default,
+				IconDescription = root.TryGetProperty("icon", out var described) ? Alt(described) : default,
+				HeaderDescription = root.TryGetProperty("image", out var headerImage) ? Alt(headerImage) : default,
+				MovedTo = RemoteActorService.Text(root, "movedTo"),
+				Published = DateTimeOffset.TryParse(RemoteActorService.Text(root, "published"), CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal, out var published)
+					? published.UtcDateTime
+					: default(DateTime?),
+				Emojis = root.TryGetProperty("tag", out var tags) ? ObjectShapes.Emojis(JsonNode.Parse(tags.GetRawText())) : new(),
+				Fields = root.TryGetProperty("attachment", out var attachment) ? ParseFields(JsonNode.Parse(attachment.GetRawText())) : new()
 			};
 		}
 
+		const int MaxFields = 16;
+
+		static bool Flag(JsonElement root, string property) =>
+			root.TryGetProperty(property, out var value) && value.ValueKind == JsonValueKind.True;
+
+		static string Alt(JsonElement image) =>
+			image.ValueKind == JsonValueKind.Object ? ObjectShapes.Text(RemoteActorService.Text(image, "name") ?? RemoteActorService.Text(image, "summary"), 1500) : default;
+
+		static Dictionary<string, string> ParseFields(JsonNode attachment)
+		{
+			var fields = new Dictionary<string, string>();
+			foreach (var field in ObjectShapes.Objects(attachment).Where(a => ActivityJson.Value(a, "type") is "PropertyValue" or "Note"))
+			{
+				var name = ObjectShapes.Text(ActivityJson.Value(field, "name"), 255);
+				var value = ActivityJson.Value(field, "value") ?? ActivityJson.Value(field, "content");
+				if (name == default || value == default || fields.ContainsKey(name))
+					continue;
+				fields[name] = ContentSanitizer.Html(value.Length <= 2048 ? value : value[..2048]);
+				if (fields.Count == MaxFields)
+					break;
+			}
+			return fields;
+		}
+
 		static List<ActorKey> ParseKeys(JsonElement root, string actorId)
 		{
 			var keys = new List<ActorKey>();

PrivaPub/Federation/Actors/RemoteActorService.cs

@@ -177,7 +177,17 @@ namespace PrivaPub.Federation.Actors
 				.Modify(a => a.FollowingURL, actor.Following)
 				.Modify(a => a.SharedInboxURL, actor.SharedInbox)
 				.Modify(a => a.PictureURL, actor.Icon)
+				.Modify(a => a.ThumbnailURL, actor.Header)
+				.Modify(a => a.PictureDescription, actor.IconDescription)
+				.Modify(a => a.HeaderDescription, actor.HeaderDescription)
 				.Modify(a => a.IsDiscoverable, actor.Discoverable)
+				.Modify(a => a.IsIndexable, actor.Indexable)
+				.Modify(a => a.IsLocked, actor.Locked)
+				.Modify(a => a.IsMemorial, actor.Memorial)
+				.Modify(a => a.MovedToURL, Origin.Of(actor.MovedTo) == default ? default : actor.MovedTo)
+				.Modify(a => a.Published, actor.Published)
+				.Modify(a => a.Emojis, actor.Emojis)
+				.Modify(a => a.Fields, actor.Fields)
 				.Modify(a => a.AvatarType, Enum.TryParse<AvatarType>(actor.Type, out var type) ? type : AvatarType.Person)
 				.Modify(a => a.PublicKeyId, key?.Id)
 				.Modify(a => a.PublicKey, key?.Pem)

PrivaPub/Federation/Inbox/Handlers/CreateHandler.cs

@@ -4,6 +4,7 @@ using MongoDB.Entities;
 using PrivaPub.Domain.Timelines;
 using PrivaPub.Federation.Actors;
 using PrivaPub.Federation.Moderation;
+using PrivaPub.Domain.Statuses;
 using PrivaPub.Federation.Objects;
 using PrivaPub.Federation.Outbox;
 using PrivaPub.Infrastructure.Ids;
@@ -35,11 +36,13 @@ namespace PrivaPub.Federation.Inbox.Handlers
 		readonly IRemotePosts _remotePosts;
 		readonly IGroupDistributor _groups;
 		readonly IObjectRecords _records;
+		readonly IPollService _polls;
 
 		public CreateHandler(DbEntities dbEntities, ILocalActorService localActors, IRemoteActorService remoteActors, IDeliveryService delivery,
-			IDomainBlocks domainBlocks, IFanout fanout, IRemotePosts remotePosts, IGroupDistributor groups, IObjectRecords records)
+			IDomainBlocks domainBlocks, IFanout fanout, IRemotePosts remotePosts, IGroupDistributor groups, IObjectRecords records, IPollService polls)
 		{
 			_records = records;
+			_polls = polls;
 			_groups = groups;
 			_fanout = fanout;
 			_remotePosts = remotePosts;
@@ -64,6 +67,15 @@ namespace PrivaPub.Federation.Inbox.Handlers
 			var note = NoteParser.Parse(node);
 			if (note == default || note.AttributedTo != author.ActorURI)
 				return;
+			if (note.Title != default && note.InReplyTo != default && ObjectShapes.Text(note.ContentHtml, 1) == default)
+			{
+				var question = await _dbEntities.Posts.Match(p => p.ObjectURI == note.InReplyTo && p.Poll != null).ExecuteFirstAsync(token);
+				if (question != default)
+				{
+					await _polls.Receive(question, author, note.Title, Id(activity), token);
+					return;
+				}
+			}
 			if (await _dbEntities.Posts.Match(p => p.ObjectURI == note.Id).ExecuteAnyAsync(token)
 				|| await DB.Default.Find<DeletedObject>().Match(d => d.ObjectURI == note.Id).ExecuteAnyAsync(token))
 				return;

PrivaPub/Federation/Inbox/Handlers/UpdateHandler.cs

@@ -55,6 +55,17 @@ namespace PrivaPub.Federation.Inbox.Handlers
 			if (post == default || post.DeletedAt.HasValue)
 				return;
 
+			post.Poll = note.Poll ?? post.Poll;
+			post.Video = note.Video ?? post.Video;
+			post.Audio = note.Audio ?? post.Audio;
+			post.Event = note.Event ?? post.Event;
+			if (!IsEdit(note, post))
+			{
+				await DB.Default.SaveAsync(post, token);
+				await _records.Revise(note, Id(activity), token);
+				return;
+			}
+
 			post.Revisions.Add(new PostRevision
 			{
 				Title = post.Title,
@@ -77,11 +88,9 @@ namespace PrivaPub.Federation.Inbox.Handlers
 			post.SpoilerText = note.SpoilerText;
 			post.Excerpt = note.Excerpt;
 			post.Source = note.Source;
+			post.Emojis = note.Emojis.ToList();
 			post.CoverURL = note.CoverURL;
 			post.Link = note.Link;
-			post.Video = note.Video;
-			post.Audio = note.Audio;
-			post.Event = note.Event;
 			post.HasContentWarning = note.Sensitive;
 			post.Text = note.ContentHtml;
 			post.ContentHtml = note.ContentHtml;
@@ -96,5 +105,8 @@ namespace PrivaPub.Federation.Inbox.Handlers
 			if (!string.IsNullOrEmpty(post.GroupId) && await _localActors.FindById(Models.Federation.LocalActorKind.Group, post.GroupId, token) is { IsCircle: false } community)
 				await _groups.Announce(community, activity.AsObject(), post.ObjectURI, isNewPost: false, token);
 		}
+
+		static bool IsEdit(NoteDocument note, PostEntity post) =>
+			note.Updated is { } updated && updated > (post.EditedAt ?? post.CreationDate);
 	}
 }

PrivaPub/Federation/Inbox/RemotePosts.cs

@@ -78,6 +78,8 @@ namespace PrivaPub.Federation.Inbox
 				SpoilerText = note.SpoilerText,
 				Excerpt = note.Excerpt,
 				Source = note.Source,
+				Poll = note.Poll,
+				Emojis = note.Emojis.ToList(),
 				CoverURL = note.CoverURL,
 				Link = note.Link,
 				Video = note.Video,

PrivaPub/Federation/Objects/NoteParser.cs

@@ -33,6 +33,8 @@ namespace PrivaPub.Federation.Objects
 		public IReadOnlyList<string> Tags { get; init; } = Array.Empty<string>();
 		public IReadOnlyList<PostMedia> Attachments { get; init; } = Array.Empty<PostMedia>();
 		public PostSource Source { get; init; }
+		public PostPoll Poll { get; init; }
+		public IReadOnlyList<CustomEmoji> Emojis { get; init; } = Array.Empty<CustomEmoji>();
 		public string CoverURL { get; init; }
 		public PostLink Link { get; init; }
 		public VideoDetails Video { get; init; }
@@ -94,6 +96,8 @@ namespace PrivaPub.Federation.Objects
 					.ToList(),
 				Attachments = Attachments(note),
 				Source = ObjectShapes.Source(note),
+				Poll = ObjectShapes.Poll(note),
+				Emojis = ObjectShapes.Emojis(note["tag"]),
 				CoverURL = ObjectShapes.Cover(note),
 				Link = ObjectShapes.Link(note),
 				Video = ObjectShapes.Video(note),

PrivaPub/Federation/Objects/ObjectShapes.cs

@@ -16,6 +16,8 @@ namespace PrivaPub.Federation.Objects
 		const int MaxCaptions = 20;
 		const int MaxPlaces = 4;
 		const int CoverMaxWidth = 1280;
+		const int MaxEmojis = 64;
+		const int MaxPollOptions = 20;
 
 		static readonly Dictionary<string, string> MediaTypesByExtension = new(StringComparer.OrdinalIgnoreCase)
 		{
@@ -81,6 +83,52 @@ namespace PrivaPub.Federation.Objects
 				?? usable.Select(c => c.Url).FirstOrDefault();
 		}
 
+		public static List<CustomEmoji> Emojis(JsonNode tags) =>
+			Objects(tags)
+				.Where(t => Value(t, "type") == "Emoji")
+				.Select(t => new CustomEmoji
+				{
+					Shortcode = Value(t, "name")?.Trim(':'),
+					URL = MediaLink(t["icon"]).Url,
+					Updated = Moment(Value(t, "updated"))
+				})
+				.Where(e => !string.IsNullOrEmpty(e.Shortcode) && e.Shortcode.Length <= 100 && Shortcode().IsMatch(e.Shortcode) && Origin.Of(e.URL) != default)
+				.DistinctBy(e => e.Shortcode)
+				.Take(MaxEmojis)
+				.ToList();
+
+		public static PostPoll Poll(JsonObject note)
+		{
+			if (Value(note, "type") != "Question")
+				return default;
+			var multiple = note["anyOf"] is JsonArray;
+			var options = Objects(note[multiple ? "anyOf" : "oneOf"])
+				.Select(o => new PollOption
+				{
+					Title = Text(Value(o, "name"), 200),
+					Votes = o["replies"] is JsonObject replies && Int(replies, "totalItems") is { } total ? total : Int(o, "_misskey_votes") ?? 0
+				})
+				.Where(o => o.Title != default)
+				.Take(MaxPollOptions)
+				.ToList();
+			if (options.Count < 2)
+				return default;
+			var closedAt = note["closed"] switch
+			{
+				JsonValue value when value.TryGetValue<bool>(out var closed) => closed ? Moment(Value(note, "endTime")) ?? DateTime.UtcNow : default(DateTime?),
+				JsonValue value when value.TryGetValue<string>(out var at) => Moment(at),
+				_ => default
+			};
+			return new PostPoll
+			{
+				Options = options,
+				Multiple = multiple,
+				ExpiresAt = Moment(Value(note, "endTime")),
+				ClosedAt = closedAt,
+				VotersCount = Int(note, "votersCount")
+			};
+		}
+
 		public static string Cover(JsonObject note) =>
 			Image(note["image"]) ?? Image(note["icon"]) ?? (note["preview"] is JsonObject preview && Value(preview, "type") == "Image" ? Image(preview) : default);
 
@@ -284,6 +332,9 @@ namespace PrivaPub.Federation.Objects
 		static bool? Bool(JsonObject node, string property) =>
 			node?[property] is JsonValue value && value.TryGetValue<bool>(out var flag) ? flag : (bool?)null;
 
+		[GeneratedRegex(@"^[\w+\-.@]+$")]
+		private static partial Regex Shortcode();
+
 		[GeneratedRegex("<[^>]*>")]
 		private static partial Regex Tags();
 

PrivaPub/Federation/Rendering/ActivityPubRenderer.cs

@@ -37,6 +37,7 @@ namespace PrivaPub.Federation.Rendering
 				["discoverable"] = "toot:discoverable",
 				["indexable"] = "toot:indexable",
 				["blurhash"] = "toot:blurhash",
+				["votersCount"] = "toot:votersCount",
 				["focalPoint"] = new JsonObject { ["@container"] = "@list", ["@id"] = "toot:focalPoint" },
 				["schema"] = "http://schema.org#",
 				["PropertyValue"] = "schema:PropertyValue",
@@ -156,6 +157,23 @@ namespace PrivaPub.Federation.Rendering
 			return note;
 		}
 
+		static void AddPoll(JsonObject note, PostPoll poll)
+		{
+			note["type"] = "Question";
+			note[poll.Multiple ? "anyOf" : "oneOf"] = new JsonArray(poll.Options.Select(option => (JsonNode)new JsonObject
+			{
+				["type"] = "Note",
+				["name"] = option.Title,
+				["replies"] = new JsonObject { ["type"] = "Collection", ["totalItems"] = option.Votes }
+			}).ToArray());
+			if (poll.ExpiresAt is { } ends)
+				note["endTime"] = Timestamp(ends);
+			if (poll.ClosedAt is { } closed)
+				note["closed"] = Timestamp(closed);
+			if (poll.VotersCount is { } voters)
+				note["votersCount"] = voters;
+		}
+
 		static string Headline(PostEntity post)
 		{
 			var text = System.Text.RegularExpressions.Regex.Replace(post.ContentHtml ?? post.Text ?? string.Empty, "<[^>]+>", " ");
@@ -192,6 +210,8 @@ namespace PrivaPub.Federation.Rendering
 			};
 			if (!string.IsNullOrEmpty(post.Language))
 				note["contentMap"] = new JsonObject { [post.Language] = content };
+			if (post.Poll is { } poll)
+				AddPoll(note, poll);
 			var attachments = post.Media.Where(m => !string.IsNullOrEmpty(m.URL)).Select(m =>
 			{
 				var attachment = new JsonObject

PrivaPub/Infrastructure/Data/Indexes.cs

@@ -110,6 +110,9 @@ namespace PrivaPub.Infrastructure.Data
 			await DB.Default.Index<DeletedObject>().Key(d => d.DeletedAt, KeyType.Ascending).Option(o => o.ExpireAfter = TombstoneLifetime).CreateAsync(token);
 			await DB.Default.Index<Downvote>().Key(d => d.PostId, KeyType.Ascending).Key(d => d.ActorURI, KeyType.Ascending).Option(o => o.Unique = true).CreateAsync(token);
 			await Plain<Downvote>(token, d => d.ActivityURI);
+			await DB.Default.Index<PollVote>().Key(v => v.PostId, KeyType.Ascending).Key(v => v.ActorURI, KeyType.Ascending).Key(v => v.Choice, KeyType.Ascending)
+				.Option(o => o.Unique = true).CreateAsync(token);
+			await DB.Default.Index<PollVote>().Key(v => v.PostId, KeyType.Ascending).Key(v => v.VoterAccountId, KeyType.Ascending).CreateAsync(token);
 		}
 
 		static async Task Unique<T>(System.Linq.Expressions.Expression<Func<T, object>> key, FilterDefinition<T> partial,

PrivaPub/Middleware/SocialPubConfigurations.cs

@@ -86,6 +86,9 @@ namespace PrivaPub.Middleware
 				.AddSingleton<IJobHandler, InboxProcessor>()
 				.AddSingleton<IRemotePosts, RemotePosts>()
 				.AddSingleton<IObjectRecords, ObjectRecords>()
+				.AddSingleton<IPollService, PollService>()
+				.AddSingleton<IJobHandler, PollRefreshJob>()
+				.AddSingleton<IJobHandler, PollCloseJob>()
 				.AddSingleton<IJobHandler, InstanceDescriber>()
 				.AddSingleton<IJobHandler, AncestorsJobHandler>()
 				.AddSingleton<IJobQueue, JobQueue>()

PrivaPub/Models/Jobs/Job.cs

@@ -23,7 +23,9 @@ namespace PrivaPub.Models.Jobs
 		Deliver,
 		ProcessInbox,
 		FetchAncestors,
-		DescribeInstance
+		DescribeInstance,
+		PollRefresh,
+		PollClose
 	}
 
 	public enum JobState

PrivaPub/Models/Post/Post.cs

@@ -25,6 +25,7 @@ namespace PrivaPub.Models.Post
 		public List<PostMention> Mentions { get; set; } = new();
 		public List<string> Tags { get; set; } = new();
 		public List<PostMedia> Media { get; set; } = new();
+		public List<CustomEmoji> Emojis { get; set; } = new();
 		[BsonIgnoreIfNull]
 		public PostSource Source { get; set; }//the remote author's own text (Markdown, MFM, BBCode)
 		[BsonIgnoreIfNull]
@@ -37,6 +38,8 @@ namespace PrivaPub.Models.Post
 		public AudioDetails Audio { get; set; }
 		[BsonIgnoreIfNull]
 		public EventDetails Event { get; set; }
+		[BsonIgnoreIfNull]
+		public PostPoll Poll { get; set; }
 		public List<float> Location { get; set; } = new();
 		public float RangeKm { get; set; } = 5.0f;
 		[BsonIgnoreIfNull]

PrivaPub/Models/Post/PostDetails.cs

@@ -1,5 +1,28 @@
 namespace PrivaPub.Models.Post
 {
+	public class CustomEmoji
+	{
+		public string Shortcode { get; set; }//without the colons
+		public string URL { get; set; }
+		public DateTime? Updated { get; set; }
+	}
+
+	public class PostPoll
+	{
+		public List<PollOption> Options { get; set; } = new();
+		public bool Multiple { get; set; }
+		public DateTime? ExpiresAt { get; set; }
+		public DateTime? ClosedAt { get; set; }
+		public int? VotersCount { get; set; }//null when the origin does not say (Misskey)
+		public bool HideTotals { get; set; }
+	}
+
+	public class PollOption
+	{
+		public string Title { get; set; }
+		public int Votes { get; set; }
+	}
+
 	public class PostSource
 	{
 		public string Content { get; set; }

PrivaPub/Models/Social/Notification.cs

@@ -21,6 +21,7 @@ namespace PrivaPub.Models.Social
 		FollowRequest,
 		Favourite,
 		Reblog,
-		Update
+		Update,
+		Poll
 	}
 }

PrivaPub/Models/Social/PollVote.cs

@@ -0,0 +1,15 @@
+using MongoDB.Entities;
+
+namespace PrivaPub.Models.Social
+{
+	public class PollVote : Entity
+	{
+		public string PostId { get; set; }
+		public string VoterAccountId { get; set; }//Avatar.ID for a local voter, ForeignAvatar.ID for a remote one
+		public string ActorURI { get; set; }
+		public bool IsLocalVoter { get; set; }
+		public int Choice { get; set; }
+		public string ActivityURI { get; set; }
+		public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
+	}
+}

PrivaPub/Models/User/Avatar.cs

@@ -59,6 +59,13 @@ namespace PrivaPub.Models.User
 		public string PersonalNote { get; set; }
 		public string ModerationNote { get; set; }
 		public bool IsDiscoverable { get; set; } = true;
+		public bool IsIndexable { get; set; }
+		public bool IsLocked { get; set; }//manuallyApprovesFollowers
+		public bool IsMemorial { get; set; }
+		public List<PrivaPub.Models.Post.CustomEmoji> Emojis { get; set; } = new();
+		public string PictureDescription { get; set; }
+		public string HeaderDescription { get; set; }
+		public DateTime? Published { get; set; }//the actor's own published
 
 		public string ActorURI { get; set; }//id
 		public string PublicKeyId { get; set; }