2 files changed, 21 insertions, 1 deletions
diff --git a/src/remote/activitypub/kernel/undo/announce.ts b/src/remote/activitypub/kernel/undo/announce.ts
new file mode 100644
index 0000000000..38ce5b6c59
--- /dev/null
+++ b/src/remote/activitypub/kernel/undo/announce.ts
@@ -0,0 +1,16 @@
+import { Notes } from '../../../../models';
+import { IRemoteUser } from '../../../../models/entities/user';
+import { IAnnounce, getApId } from '../../type';
+import deleteNote from '../../../../services/note/delete';
+
+export const undoAnnounce = async (actor: IRemoteUser, activity: IAnnounce): Promise<void> => {
+	const uri = getApId(activity);
+
+	const note = await Notes.findOne({
+		uri
+	});
+
+	if (!note) return;
+
+	await deleteNote(actor, note);
+};
diff --git a/src/remote/activitypub/kernel/undo/index.ts b/src/remote/activitypub/kernel/undo/index.ts
index 5f2e58c3bf..f49f66cc69 100644
--- a/src/remote/activitypub/kernel/undo/index.ts
+++ b/src/remote/activitypub/kernel/undo/index.ts
@@ -1,8 +1,9 @@
 import { IRemoteUser } from '../../../../models/entities/user';
-import { IUndo, IFollow, IBlock, ILike } from '../../type';
+import { IUndo, IFollow, IBlock, ILike, IAnnounce } from '../../type';
 import unfollow from './follow';
 import unblock from './block';
 import undoLike from './like';
+import { undoAnnounce } from './announce';
 import Resolver from '../../resolver';
 import { apLogger } from '../../logger';
 
@@ -38,5 +39,8 @@ export default async (actor: IRemoteUser, activity: IUndo): Promise<void> => {
 		case 'Like':
 			undoLike(actor, object as ILike);
 			break;
+		case 'Announce':
+			undoAnnounce(actor, object as IAnnounce);
+			break;
 	}
 };