1 files changed, 38 insertions, 0 deletions
diff --git a/src/services/i/update.ts b/src/services/i/update.ts
new file mode 100644
index 0000000000..25b55b0355
--- /dev/null
+++ b/src/services/i/update.ts
@@ -0,0 +1,38 @@
+import * as mongo from 'mongodb';
+import User, { isLocalUser, isRemoteUser } from '../../models/user';
+import Following from '../../models/following';
+import renderPerson from '../../remote/activitypub/renderer/person';
+import renderUpdate from '../../remote/activitypub/renderer/update';
+import packAp from '../../remote/activitypub/renderer';
+import { deliver } from '../../queue';
+
+export async function publishToFollowers(userId: mongo.ObjectID) {
+	const user = await User.findOne({
+		_id: userId
+	});
+
+	const followers = await Following.find({
+		followeeId: user._id
+	});
+
+	const queue: string[] = [];
+
+	// フォロワーがリモートユーザーかつ投稿者がローカルユーザーならUpdateを配信
+	if (isLocalUser(user)) {
+		followers.map(following => {
+			const follower = following._follower;
+
+			if (isRemoteUser(follower)) {
+				const inbox = follower.sharedInbox || follower.inbox;
+				if (!queue.includes(inbox)) queue.push(inbox);
+			}
+		});
+
+		if (queue.length > 0) {
+			const content = packAp(renderUpdate(await renderPerson(user), user));
+			queue.forEach(inbox => {
+				deliver(user, content, inbox);
+			});
+		}
+	}
+}