From 1b6bae72c2aa19141133bbaf6939a4a5dded03b1 Mon Sep 17 00:00:00 2001
From: Akihiko Odaki <nekomanma@pixiv.co.jp>
Date: Wed, 4 Apr 2018 21:56:04 +0900
Subject: [PATCH] Make HTTP request first in follow processor

---
 src/processor/http/follow.ts | 118 +++++++++++++++++------------------
 1 file changed, 59 insertions(+), 59 deletions(-)

diff --git a/src/processor/http/follow.ts b/src/processor/http/follow.ts
index 8bf890efb..ed36fa18d 100644
--- a/src/processor/http/follow.ts
+++ b/src/processor/http/follow.ts
@@ -1,4 +1,4 @@
-import User, { isLocalUser, pack as packUser } from '../../models/user';
+import User, { isLocalUser, isRemoteUser, pack as packUser } from '../../models/user';
 import Following from '../../models/following';
 import FollowingLog from '../../models/following-log';
 import FollowedLog from '../../models/followed-log';
@@ -7,63 +7,63 @@ import notify from '../../publishers/notify';
 import context from '../../remote/activitypub/renderer/context';
 import render from '../../remote/activitypub/renderer/follow';
 import request from '../../remote/request';
+import Logger from '../../utils/logger';
 
-export default ({ data }) => Following.findOne({ _id: data.following }).then(({ followerId, followeeId }) => {
-	const promisedFollower = User.findOne({ _id: followerId });
-	const promisedFollowee = User.findOne({ _id: followeeId });
-
-	return Promise.all([
-		// Increment following count
-		User.update(followerId, {
-			$inc: {
-				followingCount: 1
-			}
-		}),
-
-		promisedFollower.then(({ followingCount }) => FollowingLog.insert({
-			createdAt: data.following.createdAt,
-			userId: followerId,
-			count: followingCount + 1
-		})),
-
-		// Increment followers count
-		User.update({ _id: followeeId }, {
-			$inc: {
-				followersCount: 1
-			}
-		}),
-
-		promisedFollowee.then(({ followersCount }) => FollowedLog.insert({
-			createdAt: data.following.createdAt,
-			userId: followerId,
-			count: followersCount + 1
-		})),
-
-		// Notify
-		promisedFollowee.then(followee => followee.host === null ?
-			notify(followeeId, followerId, 'follow') : null),
-
-		// Publish follow event
-		Promise.all([promisedFollower, promisedFollowee]).then(([follower, followee]) => {
-			let followerEvent;
-			let followeeEvent;
-
-			if (isLocalUser(follower)) {
-				followerEvent = packUser(followee, follower)
-					.then(packed => event(follower._id, 'follow', packed));
-			}
-
-			if (isLocalUser(followee)) {
-				followeeEvent = packUser(follower, followee)
-					.then(packed => event(followee._id, 'followed', packed));
-			} else if (isLocalUser(follower)) {
-				const rendered = render(follower, followee);
-				rendered['@context'] = context;
-
-				followeeEvent = request(follower, followee.account.inbox, rendered);
-			}
-
-			return Promise.all([followerEvent, followeeEvent]);
-		})
+export default async ({ data }) => {
+	const { followerId, followeeId } = await Following.findOne({ _id: data.following });
+	const [follower, followee] = await Promise.all([
+		User.findOne({ _id: followerId }),
+		User.findOne({ _id: followeeId })
 	]);
-});
+
+	if (isLocalUser(follower) && isRemoteUser(followee)) {
+		const rendered = render(follower, followee);
+		rendered['@context'] = context;
+
+		await request(follower, followee.account.inbox, rendered);
+	}
+
+	try {
+		await Promise.all([
+			// Increment following count
+			User.update(followerId, {
+				$inc: {
+					followingCount: 1
+				}
+			}),
+
+			FollowingLog.insert({
+				createdAt: data.following.createdAt,
+				userId: followerId,
+				count: follower.followingCount + 1
+			}),
+
+			// Increment followers count
+			User.update({ _id: followeeId }, {
+				$inc: {
+					followersCount: 1
+				}
+			}),
+
+			FollowedLog.insert({
+				createdAt: data.following.createdAt,
+				userId: followerId,
+				count: followee.followersCount + 1
+			}),
+
+			// Publish follow event
+			isLocalUser(follower) && packUser(followee, follower)
+				.then(packed => event(follower._id, 'follow', packed)),
+
+			isLocalUser(followee) && Promise.all([
+				packUser(follower, followee)
+					.then(packed => event(followee._id, 'followed', packed)),
+
+				// Notify
+				isLocalUser(followee) && notify(followeeId, followerId, 'follow')
+			])
+		]);
+	} catch (error) {
+		Logger.error(error.toString());
+	}
+};