1 files changed, 69 insertions, 0 deletions
diff --git a/src/queue/processors/http/follow.ts b/src/queue/processors/http/follow.ts
new file mode 100644
index 0000000000..4cb72828e7
--- /dev/null
+++ b/src/queue/processors/http/follow.ts
@@ -0,0 +1,69 @@
+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';
+import event from '../../../publishers/stream';
+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 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());
+	}
+};