[backend/federation] Handle user profile fields (ISH-34)

Iceshrimp.Backend/Controllers/Mastodon/Renderers/UserRenderer.cs

@@ -22,6 +22,16 @@ public class UserRenderer(IOptions<Config.InstanceSection> config, MfmConverter
 			acct += $"@{user.Host}";
 
 		var profileEmoji = emoji?.Where(p => user.Emojis.Contains(p.Id)).ToList() ?? await GetEmoji([user]);
+		var fields = profile?.Fields
+		                    .Select(p => new Field
+		                    {
+			                    Name  = p.Name,
+			                    Value = p.Value,
+			                    VerifiedAt = p.IsVerified.HasValue && p.IsVerified.Value
+				                    ? DateTime.Now.ToStringIso8601Like()
+				                    : null
+		                    })
+		                    .ToList();
 
 		var res = new AccountEntity
 		{
@@ -44,7 +54,7 @@ public class UserRenderer(IOptions<Config.InstanceSection> config, MfmConverter
 			MovedToAccount     = null,                           //TODO
 			IsBot              = user.IsBot,
 			IsDiscoverable     = user.IsExplorable,
-			Fields             = [], //TODO
+			Fields             = fields ?? [],
 			Emoji              = profileEmoji
 		};
 

Iceshrimp.Backend/Controllers/Mastodon/Schemas/Entities/AccountEntity.cs

@@ -23,7 +23,7 @@ public class AccountEntity : IEntity
 	[J("moved")]           public required AccountEntity?    MovedToAccount     { get; set; }
 	[J("bot")]             public required bool              IsBot              { get; set; }
 	[J("discoverable")]    public required bool              IsDiscoverable     { get; set; }
-	[J("fields")]          public required Field[]           Fields             { get; set; }
+	[J("fields")]          public required List<Field>       Fields             { get; set; }
 	[J("source")]          public          AccountSource?    Source             { get; set; }
 	[J("emojis")]          public required List<EmojiEntity> Emoji              { get; set; }
 	[J("id")]              public required string            Id                 { get; set; }

Iceshrimp.Backend/Core/Configuration/Constants.cs

@@ -6,7 +6,8 @@ public static class Constants
 	public const           string   W3IdSecurityNs    = "https://w3id.org/security";
 	public const           string   PurlDcNs          = "http://purl.org/dc/terms";
 	public const           string   XsdNs             = "http://www.w3.org/2001/XMLSchema";
-	public const           string   MastodonNs           = "http://joinmastodon.org/ns";
+	public const           string   SchemaNs          = "http://schema.org";
+	public const           string   MastodonNs        = "http://joinmastodon.org/ns";
 	public static readonly string[] SystemUsers       = ["instance.actor", "relay.actor"];
 
 	public static readonly string[] BrowserSafeMimeTypes =

Iceshrimp.Backend/Core/Federation/ActivityPub/NoteRenderer.cs

@@ -73,7 +73,6 @@ public class NoteRenderer(IOptions<Config.InstanceSection> config, MfmConverter
 			          .Where(p => note.FileIds.Contains(p.Id) && p.UserHost == null)
 			          .Select(p => new ASDocument
 			          {
-				          Type        = $"{Constants.ActivityStreamsNs}#Document",
 				          Sensitive   = p.IsSensitive,
 				          Url         = new ASObjectBase(p.WebpublicUrl ?? p.Url),
 				          MediaType   = p.Type,

Iceshrimp.Backend/Core/Federation/ActivityStreams/Types/ASActor.cs

@@ -121,6 +121,10 @@ public class ASActor : ASObject
 	[JC(typeof(ASTagConverter))]
 	public List<ASTag>? Tags { get; set; }
 	
+	[J($"{Constants.ActivityStreamsNs}#attachment")]
+	[JC(typeof(ASAttachmentConverter))]
+	public List<ASAttachment>? Attachments { get; set; }
+
 	public bool IsBot => Type == $"{Constants.ActivityStreamsNs}#Service";
 
 	public void Normalize(string uri, string acct)

Iceshrimp.Backend/Core/Federation/ActivityStreams/Types/ASAttachment.cs

@@ -15,6 +15,8 @@ public class ASAttachment : ASObjectBase
 
 public class ASDocument : ASAttachment
 {
+	public ASDocument() => Type = $"{Constants.ActivityStreamsNs}#Document";
+
 	[J($"{Constants.ActivityStreamsNs}#url")]
 	[JC(typeof(ASObjectBaseConverter))]
 	public ASObjectBase? Url { get; set; }
@@ -32,6 +34,17 @@ public class ASDocument : ASAttachment
 	public string? Description { get; set; }
 }
 
+public class ASField : ASAttachment
+{
+	public ASField() => Type = $"{Constants.SchemaNs}#PropertyValue";
+
+	[J($"{Constants.ActivityStreamsNs}#name")] [JC(typeof(ValueObjectConverter))]
+	public string? Name;
+
+	[J($"{Constants.SchemaNs}#value")] [JC(typeof(ValueObjectConverter))]
+	public string? Value;
+}
+
 public sealed class ASAttachmentConverter : JsonConverter
 {
 	public override bool CanWrite => false;
@@ -74,9 +87,12 @@ public sealed class ASAttachmentConverter : JsonConverter
 	{
 		var attachment = obj.ToObject<ASAttachment?>();
 
-		return attachment?.Type == $"{Constants.ActivityStreamsNs}#Document"
+		return attachment?.Type switch
-			? obj.ToObject<ASDocument?>()
+		{
-			: attachment;
+			$"{Constants.ActivityStreamsNs}#Document" => obj.ToObject<ASDocument?>(),
+			$"{Constants.SchemaNs}#PropertyValue"     => obj.ToObject<ASField?>(),
+			_                                         => attachment
+		};
 	}
 
 	public override void WriteJson(JsonWriter writer, object? value, JsonSerializer serializer)

Iceshrimp.Backend/Core/Services/NoteService.cs

@@ -583,6 +583,7 @@ public class NoteService(
 		if (attachments is not { Count: > 0 }) return [];
 		var result = await attachments
 		                   .OfType<ASDocument>()
+		                   .Take(10)
 		                   .Select(p => driveSvc.StoreFile(p.Url?.Id, user, p.Sensitive ?? sensitive, p.Description,
 		                                                   p.MediaType))
 		                   .AwaitAllNoConcurrencyAsync();

Iceshrimp.Backend/Core/Services/UserService.cs

@@ -101,6 +101,11 @@ public class UserService(
 		                .Where(p => p != null)
 		                .Cast<string>()
 		                .ToList();
+		var fields = actor.Attachments?
+		                  .OfType<ASField>()
+		                  .Where(p => p is { Name: not null, Value: not null })
+		                  .Select(p => new UserProfile.Field { Name = p.Name!, Value = p.Value! })
+		                  .ToArray();
 
 		user = new User
 		{
@@ -134,7 +139,7 @@ public class UserService(
 			Description = actor.MkSummary ?? await mfmConverter.FromHtmlAsync(actor.Summary),
 			//Birthday = TODO,
 			//Location = TODO,
-			//Fields = TODO,
+			Fields   = fields ?? [],
 			UserHost = user.Host,
 			Url      = actor.Url?.Link
 		};
@@ -226,6 +231,12 @@ public class UserService(
 		                .Cast<string>()
 		                .ToList();
 
+		var fields = actor.Attachments?
+		                  .OfType<ASField>()
+		                  .Where(p => p is { Name: not null, Value: not null })
+		                  .Select(p => new UserProfile.Field { Name = p.Name!, Value = p.Value! })
+		                  .ToArray();
+
 		user.Emojis = emoji.Select(p => p.Id).ToList();
 		user.Tags   = tags ?? [];
 		//TODO: FollowersCount
@@ -238,7 +249,7 @@ public class UserService(
 		user.UserProfile.Description = actor.MkSummary ?? await mfmConverter.FromHtmlAsync(actor.Summary);
 		//user.UserProfile.Birthday = TODO;
 		//user.UserProfile.Location = TODO;
-		//user.UserProfile.Fields = TODO;
+		user.UserProfile.Fields   = fields ?? [];
 		user.UserProfile.UserHost = user.Host;
 		user.UserProfile.Url      = actor.Url?.Link;