78 lines
1.8 KiB
TypeScript
78 lines
1.8 KiB
TypeScript
import { MongoError } from 'mongodb';
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import parseAcct from '../../../acct/parse';
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import Following, { IFollowing } from '../../../models/following';
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import User from '../../../models/user';
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import config from '../../../config';
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import queue from '../../../queue';
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import context from '../renderer/context';
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import renderAccept from '../renderer/accept';
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import request from '../../request';
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export default async (resolver, actor, activity, distribute) => {
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const prefix = config.url + '/@';
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const id = activity.object.id || activity.object;
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if (!id.startsWith(prefix)) {
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return null;
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}
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const { username, host } = parseAcct(id.slice(prefix.length));
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if (host !== null) {
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throw new Error();
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}
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const followee = await User.findOne({ username, host });
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if (followee === null) {
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throw new Error();
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}
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if (!distribute) {
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const { _id } = await Following.findOne({
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followerId: actor._id,
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followeeId: followee._id
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})
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return {
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resolver,
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object: { $ref: 'following', $id: _id }
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};
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}
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const promisedFollowing = Following.insert({
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createdAt: new Date(),
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followerId: actor._id,
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followeeId: followee._id
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}).then(following => new Promise((resolve, reject) => {
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queue.create('http', {
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type: 'follow',
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following: following._id
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}).save(error => {
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if (error) {
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reject(error);
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} else {
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resolve(following);
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}
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});
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}) as Promise<IFollowing>, async error => {
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// duplicate key error
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if (error instanceof MongoError && error.code === 11000) {
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return Following.findOne({
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followerId: actor._id,
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followeeId: followee._id
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});
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}
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throw error;
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});
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const accept = renderAccept(activity);
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accept['@context'] = context;
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await request(followee, actor.account.inbox, accept);
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return promisedFollowing.then(({ _id }) => ({
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resolver,
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object: { $ref: 'following', $id: _id }
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}));
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};
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