From 57a63d38aaae33331c0272cbcbc3f5d254cfd93d Mon Sep 17 00:00:00 2001
From: mei23 <m@m544.net>
Date: Sat, 1 Sep 2018 20:17:30 +0900
Subject: [PATCH] Send Update activity

---
 src/remote/activitypub/renderer/update.ts | 14 +++++++++
 src/server/api/endpoints/i/update.ts      |  4 +++
 src/services/i/update.ts                  | 38 +++++++++++++++++++++++
 3 files changed, 56 insertions(+)
 create mode 100644 src/remote/activitypub/renderer/update.ts
 create mode 100644 src/services/i/update.ts

diff --git a/src/remote/activitypub/renderer/update.ts b/src/remote/activitypub/renderer/update.ts
new file mode 100644
index 000000000..cf9acc9ac
--- /dev/null
+++ b/src/remote/activitypub/renderer/update.ts
@@ -0,0 +1,14 @@
+import config from '../../../config';
+import { ILocalUser } from '../../../models/user';
+
+export default (object: any, user: ILocalUser) => {
+	const activity = {
+		id: `${config.url}/users/${user._id}#updates/${new Date().getTime()}`,
+		actor: `${config.url}/users/${user._id}`,
+		type: 'Update',
+		to: [ 'https://www.w3.org/ns/activitystreams#Public' ],
+		object
+	} as any;
+
+	return activity;
+};
diff --git a/src/server/api/endpoints/i/update.ts b/src/server/api/endpoints/i/update.ts
index cdb4eb3f5..585339e24 100644
--- a/src/server/api/endpoints/i/update.ts
+++ b/src/server/api/endpoints/i/update.ts
@@ -5,6 +5,7 @@ import DriveFile from '../../../../models/drive-file';
 import acceptAllFollowRequests from '../../../../services/following/requests/accept-all';
 import { IApp } from '../../../../models/app';
 import config from '../../../../config';
+import { publishToFollowers } from '../../../../services/i/update';
 
 export const meta = {
 	desc: {
@@ -144,4 +145,7 @@ export default async (params: any, user: ILocalUser, app: IApp) => new Promise(a
 	if (user.isLocked && isLocked === false) {
 		acceptAllFollowRequests(user);
 	}
+
+	// フォロワーにUpdateを配信
+	publishToFollowers(user._id);
 });
diff --git a/src/services/i/update.ts b/src/services/i/update.ts
new file mode 100644
index 000000000..25b55b035
--- /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);
+			});
+		}
+	}
+}