[backend/federation] Federate user pronouns

Iceshrimp.Backend/Core/Configuration/Constants.cs

@@ -21,6 +21,7 @@ public static class Constants
 	public const           string   MastodonNs        = "http://joinmastodon.org/ns";
 	public const           string   MisskeyNs         = "https://misskey-hub.net/ns";
 	public const           string   FedibirdNs        = "http://fedibird.com/ns";
+	public const           string   PancakesNs        = "https://ns.pancakes.gay/as/";
 	public static readonly string[] SystemUsers       = ["instance.actor", "relay.actor"];
 
 	public const string APMime = "application/activity+json";

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

@@ -80,7 +80,14 @@ public class UserRenderer(
 
 		var attachments = profile?.Fields
 		                         .Select(p => new ASField { Name = p.Name, Value = RenderFieldValue(p.Value) })
-		                         .Cast<ASAttachment>()
+		                         .Concat<ASAttachment>(profile.Pronouns != null && profile.Pronouns.Count != 0
+			                                               ?
+			                                               [
+				                                               profile.Pronouns.TryGetValue("", out var pronouns)
+					                                               ? new ASPronouns { Name    = pronouns }
+					                                               : new ASPronouns { NameMap = profile.Pronouns }
+			                                               ]
+			                                               : [])
 		                         .ToList();
 
 		var summary = profile?.Description != null

Iceshrimp.Backend/Core/Federation/ActivityStreams/Contexts/iceshrimp.json

@@ -43,7 +43,8 @@
 
       "Bite": "https://ns.mia.jetzt/as#Bite",
       "quoteUri": "http://fedibird.com/ns#quoteUri",
-      "EmojiReact": "http://litepub.social/ns#EmojiReact"
+      "EmojiReact": "http://litepub.social/ns#EmojiReact",
+      "Pronouns": "https://ns.pancakes.gay/as/#Pronouns"
     }
   ]
 }

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

@@ -1,8 +1,11 @@
+using System.Text.Json.Serialization;
 using Iceshrimp.Backend.Core.Configuration;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using J = Newtonsoft.Json.JsonPropertyAttribute;
 using JC = Newtonsoft.Json.JsonConverterAttribute;
+using JI = System.Text.Json.Serialization.JsonIgnoreAttribute;
+using JsonConverter = Newtonsoft.Json.JsonConverter;
 
 namespace Iceshrimp.Backend.Core.Federation.ActivityStreams.Types;
 
@@ -50,6 +53,21 @@ public class ASField : ASAttachment
 	public ASField() => Type = $"{Constants.SchemaNs}#PropertyValue";
 }
 
+public class ASPronouns : ASAttachment
+{
+	public ASPronouns() => Type = $"{Constants.PancakesNs}#Pronouns";
+
+	[J($"{Constants.ActivityStreamsNs}#name")]
+	[JC(typeof(ValueObjectConverter))]
+	[JI(Condition = JsonIgnoreCondition.WhenWritingNull)]
+	public string? Name { get; set; }
+
+	[J($"{Constants.ActivityStreamsNs}#nameMap")]
+	[JC(typeof(ValueObjectConverter))]
+	[JI(Condition = JsonIgnoreCondition.WhenWritingNull)]
+	public Dictionary<string, string>? NameMap { get; set; }
+}
+
 public class ASImageConverter : ASSerializer.ListSingleObjectConverter<ASImage>;
 
 public sealed class ASAttachmentConverter : JsonConverter
@@ -99,6 +117,7 @@ public sealed class ASAttachmentConverter : JsonConverter
 			$"{Constants.ActivityStreamsNs}#Document" => obj.ToObject<ASDocument?>(),
 			$"{Constants.ActivityStreamsNs}#Image"    => obj.ToObject<ASImage?>(),
 			$"{Constants.SchemaNs}#PropertyValue"     => obj.ToObject<ASField?>(),
+			$"{Constants.PancakesNs}#Pronouns"        => obj.ToObject<ASPronouns?>(),
 			_                                         => attachment
 		};
 	}

Iceshrimp.Backend/Core/Services/UserService.cs

@@ -159,6 +159,15 @@ public class UserService(
 			             .AwaitAllAsync()
 			: null;
 		
+		var pronounsAttachment = actor.Attachments?.OfType<ASPronouns>()
+		                              .FirstOrDefault(p => p is { Name: not null } or { NameMap: not null });
+		var pronouns = pronounsAttachment switch
+		{
+			{ Name: not null }    => new Dictionary<string, string> { { "", pronounsAttachment.Name } },
+			{ NameMap: not null } => pronounsAttachment.NameMap,
+			_                     => null
+		};
+
 		var bio = actor.MkSummary?.ReplaceLineEndings("\n").Trim();
 		if (bio == null)
 		{
@@ -209,7 +218,8 @@ public class UserService(
 			//Location = TODO,
 			Fields   = fields?.ToArray() ?? [],
 			UserHost = user.Host,
-			Url      = actor.Url?.Link
+			Url      = actor.Url?.Link,
+			Pronouns = pronouns
 		};
 
 		var publicKey = new UserPublickey
@@ -326,6 +336,15 @@ public class UserService(
 			             .AwaitAllAsync()
 			: null;
 
+		var pronounsAttachment = actor.Attachments?.OfType<ASPronouns>()
+		                              .FirstOrDefault(p => p is { Name: not null } or { NameMap: not null });
+		var pronouns = pronounsAttachment switch
+		{
+			{ Name: not null }    => new Dictionary<string, string> { { "", pronounsAttachment.Name } },
+			{ NameMap: not null } => pronounsAttachment.NameMap,
+			_                     => null
+		};
+
 		user.Emojis = emoji.Select(p => p.Id).ToList();
 		//TODO: FollowersCount
 		//TODO: FollowingCount
@@ -351,6 +370,7 @@ public class UserService(
 		user.UserProfile.Fields   = fields?.ToArray() ?? [];
 		user.UserProfile.UserHost = user.Host;
 		user.UserProfile.Url      = actor.Url?.Link;
+		user.UserProfile.Pronouns = pronouns;
 
 		user.UserProfile.MentionsResolved = false;