Sharkey/src/services/following/create.ts

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import User, { isLocalUser, isRemoteUser, pack as packUser, IUser } from '../../models/user';
import Following from '../../models/following';
import Blocking from '../../models/blocking';
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import { publishMainStream } from '../stream';
import notify from '../../services/create-notification';
import { renderActivity } from '../../remote/activitypub/renderer';
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import renderFollow from '../../remote/activitypub/renderer/follow';
import renderAccept from '../../remote/activitypub/renderer/accept';
import renderReject from '../../remote/activitypub/renderer/reject';
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import { deliver } from '../../queue';
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import createFollowRequest from './requests/create';
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import perUserFollowingChart from '../../chart/per-user-following';
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export default async function(follower: IUser, followee: IUser, requestId?: string) {
// check blocking
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const [blocking, blocked] = await Promise.all([
Blocking.findOne({
blockerId: follower._id,
blockeeId: followee._id,
}),
Blocking.findOne({
blockerId: followee._id,
blockeeId: follower._id,
})
]);
if (isRemoteUser(follower) && isLocalUser(followee) && blocked) {
// リモートフォローを受けてブロックしていた場合は、エラーにするのではなくRejectを送り返しておしまい。
const content = renderActivity(renderReject(renderFollow(follower, followee, requestId), followee));
deliver(followee , content, follower.inbox);
return;
} else if (isRemoteUser(follower) && isLocalUser(followee) && blocking) {
// リモートフォローを受けてブロックされているはずの場合だったら、ブロック解除しておく。
await Blocking.remove({
_id: blocking._id
});
} else {
// それ以外は単純に例外
if (blocking != null) throw new Error('blocking');
if (blocked != null) throw new Error('blocked');
}
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// フォロー対象が鍵アカウントである or
// フォロワーがBotであり、フォロー対象がBotからのフォローに慎重である or
// フォロワーがローカルユーザーであり、フォロー対象がリモートユーザーである
// 上記のいずれかに当てはまる場合はすぐフォローせずにフォローリクエストを発行しておく
if (followee.isLocked || (followee.carefulBot && follower.isBot) || (isLocalUser(follower) && isRemoteUser(followee))) {
let autoAccept = false;
// フォローしているユーザーは自動承認オプション
if (isLocalUser(followee) && followee.autoAcceptFollowed) {
const followed = await Following.findOne({
followerId: followee._id,
followeeId: follower._id
});
if (followed) autoAccept = true;
}
if (!autoAccept) {
await createFollowRequest(follower, followee, requestId);
return;
}
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}
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await Following.insert({
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createdAt: new Date(),
followerId: follower._id,
followeeId: followee._id,
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// 非正規化
_follower: {
host: follower.host,
inbox: isRemoteUser(follower) ? follower.inbox : undefined,
sharedInbox: isRemoteUser(follower) ? follower.sharedInbox : undefined
},
_followee: {
host: followee.host,
inbox: isRemoteUser(followee) ? followee.inbox : undefined,
sharedInbox: isRemoteUser(followee) ? followee.sharedInbox : undefined
}
});
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//#region Increment following count
User.update({ _id: follower._id }, {
$inc: {
followingCount: 1
}
});
//#endregion
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//#region Increment followers count
User.update({ _id: followee._id }, {
$inc: {
followersCount: 1
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}
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});
//#endregion
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perUserFollowingChart.update(follower, followee, true);
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// Publish follow event
if (isLocalUser(follower)) {
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packUser(followee, follower, {
detail: true
}).then(packed => publishMainStream(follower._id, 'follow', packed));
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}
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// Publish followed event
if (isLocalUser(followee)) {
packUser(follower, followee).then(packed => publishMainStream(followee._id, 'followed', packed)),
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// 通知を作成
notify(followee._id, follower._id, 'follow');
}
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if (isRemoteUser(follower) && isLocalUser(followee)) {
const content = renderActivity(renderAccept(renderFollow(follower, followee, requestId), followee));
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deliver(followee, content, follower.inbox);
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}
}