[feature] Parse funkwhale Album as Statusable to allow barebones interacting with bandwagon (#3931)

* bump activity version

* parse funkwhale / bandwagon album as statusable

internal/ap/activitystreams.go

@@ -98,10 +98,17 @@ const (
 	// that we don't *yet* know what type of Object something is.
 	ObjectUnknown = "Unknown"
 
-	// Extensions and unofficial additions.
+	/* Extensions and unofficial additions */
+
+	/* GtS stuff */
+
 	ObjectLikeApproval     = "LikeApproval"
 	ObjectReplyApproval    = "ReplyApproval"
 	ObjectAnnounceApproval = "AnnounceApproval"
+
+	/* Funkwhale stuff */
+
+	ObjectAlbum = "Album"
 )
 
 // isActivity returns whether AS type name is of an Activity (NOT IntransitiveActivity).

internal/ap/extract.go

@@ -1078,7 +1078,14 @@ func ExtractInteractionPolicy(
 	statusable Statusable,
 	owner *gtsmodel.Account,
 ) *gtsmodel.InteractionPolicy {
-	policyProp := statusable.GetGoToSocialInteractionPolicy()
+	ipa, ok := statusable.(InteractionPolicyAware)
+	if !ok {
+		// Not a type with interaction
+		// policy properties settable.
+		return nil
+	}
+
+	policyProp := ipa.GetGoToSocialInteractionPolicy()
 	if policyProp == nil || policyProp.Len() != 1 {
 		return nil
 	}

internal/ap/interfaces.go

@@ -76,7 +76,8 @@ func IsStatusable(typeName string) bool {
 		ObjectEvent,
 		ObjectPlace,
 		ObjectProfile,
-		ActivityQuestion:
+		ActivityQuestion,
+		ObjectAlbum:
 		return true
 	default:
 		return false
@@ -226,11 +227,13 @@ type Statusable interface {
 	WithTo
 	WithCc
 	WithSensitive
-	WithConversation
 	WithContent
 	WithAttachment
 	WithTag
 	WithReplies
+}
+
+type InteractionPolicyAware interface {
 	WithInteractionPolicy
 	WithApprovedBy
 }
@@ -589,10 +592,6 @@ type WithSensitive interface {
 	SetActivityStreamsSensitive(vocab.ActivityStreamsSensitiveProperty)
 }
 
-// WithConversation ...
-type WithConversation interface { // TODO
-}
-
 // WithContent represents an activity with ActivityStreamsContentProperty
 type WithContent interface {
 	GetActivityStreamsContent() vocab.ActivityStreamsContentProperty

internal/ap/resolve_test.go

@@ -80,6 +80,56 @@ func (suite *ResolveTestSuite) TestResolveNonAPJSONAsAccountable() {
 	suite.Nil(accountable)
 }
 
+func (suite *ResolveTestSuite) TestResolveBandwagonAlbumAsStatusable() {
+	b := []byte(`{
+  "@context": [
+    "https://www.w3.org/ns/activitystreams",
+    "https://w3id.org/security/v1",
+    {
+      "discoverable": "toot:discoverable",
+      "indexable": "toot:indexable",
+      "toot": "https://joinmastodon.org/ns#"
+    },
+    "https://funkwhale.audio/ns"
+  ],
+  "artists": [
+    {
+      "id": "https://bandwagon.fm/@67a0a0808121f77ed3466870",
+      "name": "Luka Prinčič",
+      "type": "Artist"
+    }
+  ],
+  "attachment": [
+    {
+      "mediaType": "image/webp",
+      "name": "image",
+      "type": "Document",
+      "url": "https://bandwagon.fm/67a0a219f050061c8b4ce427/attachments/67a0a21bf050061c8b4ce429"
+    }
+  ],
+  "attributedTo": "https://bandwagon.fm/@67a0a0808121f77ed3466870",
+  "content": "... a transgenre mutation, a fluid entity, jagged pop, electro-funk, techno-cabaret, a schlager, and soft alternative, queer to the core, satire and tragedy, sharp and fun indulgence for the dance of bodies and brains, activism and hedonism, which would all like to steal your attention.\r\n\r\nDRAGX̶FUNK is pronounced /dɹæɡɑːfʌŋk/.\r\n\r\n---\r\n\r\n## Buy digital\r\n💳 [Stripe](https://buy.stripe.com/6oE8x52iG1Kq5pKeV3)\r\n\r\n---\r\n\r\n## Buy dl/merch\r\n🎵 [Bandcamp](https://lukaprincic.bandcamp.com/album/dragx-funk)  \r\n\r\n---\r\n\r\n## More:\r\n🌐 [prin.lu](https://prin.lu/music/241205_dragx-funk/)  \r\n👉 [kamizdat.si](https://kamizdat.si/releases/dragx-funk-2/)\r\n",
+  "context": "https://bandwagon.fm/67a0a219f050061c8b4ce427",
+  "id": "https://bandwagon.fm/67a0a219f050061c8b4ce427",
+  "library": "https://bandwagon.fm/67a0a219f050061c8b4ce427/pub/children",
+  "license": "CC-BY-NC-SA",
+  "name": "DRAGX̶FUNK",
+  "published": "2025-03-17T11:40:53Z",
+  "to": [
+    "https://www.w3.org/ns/activitystreams#Public"
+  ],
+  "tracks": "https://bandwagon.fm/67a0a219f050061c8b4ce427/pub/children",
+  "type": "Album",
+  "url": "https://bandwagon.fm/67a0a219f050061c8b4ce427"
+}`)
+
+	statusable, err := ap.ResolveStatusable(
+		context.Background(), io.NopCloser(bytes.NewReader(b)),
+	)
+	suite.NoError(err)
+	suite.NotNil(statusable)
+}
+
 func TestResolveTestSuite(t *testing.T) {
 	suite.Run(t, &ResolveTestSuite{})
 }

internal/ap/serialize.go

@@ -153,7 +153,9 @@ func serializeStatusable(t vocab.Type, includeContext bool) (map[string]interfac
 
 	NormalizeOutgoingAttachmentProp(statusable, data)
 	NormalizeOutgoingContentProp(statusable, data)
-	NormalizeOutgoingInteractionPolicyProp(statusable, data)
+	if ipa, ok := statusable.(InteractionPolicyAware); ok {
+		NormalizeOutgoingInteractionPolicyProp(ipa, data)
+	}
 
 	return data, nil
 }