88 lines
2.5 KiB
TypeScript
88 lines
2.5 KiB
TypeScript
import Resolver from '../../resolver';
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import post from '../../../../services/note/create';
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import { IRemoteUser, User } from '../../../../models/entities/user';
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import { IAnnounce, INote } from '../../type';
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import { fetchNote, resolveNote } from '../../models/note';
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import { resolvePerson } from '../../models/person';
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import { apLogger } from '../../logger';
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import { extractDbHost } from '../../../../misc/convert-host';
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import fetchMeta from '../../../../misc/fetch-meta';
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const logger = apLogger;
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/**
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* アナウンスアクティビティを捌きます
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*/
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export default async function(resolver: Resolver, actor: IRemoteUser, activity: IAnnounce, note: INote): Promise<void> {
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const uri = activity.id || activity;
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// アナウンサーが凍結されていたらスキップ
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if (actor.isSuspended) {
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return;
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}
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if (typeof uri !== 'string') {
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throw new Error('invalid announce');
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}
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// アナウンス先をブロックしてたら中断
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// TODO: いちいちデータベースにアクセスするのはコスト高そうなのでどっかにキャッシュしておく
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const meta = await fetchMeta();
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if (meta.blockedHosts.includes(extractDbHost(uri))) return;
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// 既に同じURIを持つものが登録されていないかチェック
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const exist = await fetchNote(uri);
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if (exist) {
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return;
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}
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// Announce対象をresolve
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let renote;
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try {
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renote = await resolveNote(note);
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} catch (e) {
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// 対象が4xxならスキップ
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if (e.statusCode >= 400 && e.statusCode < 500) {
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logger.warn(`Ignored announce target ${note.inReplyTo} - ${e.statusCode}`);
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return;
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}
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logger.warn(`Error in announce target ${note.inReplyTo} - ${e.statusCode || e}`);
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throw e;
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}
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logger.info(`Creating the (Re)Note: ${uri}`);
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//#region Visibility
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const visibility = getVisibility(activity.to || [], activity.cc || [], actor);
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let visibleUsers: User[] = [];
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if (visibility == 'specified') {
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visibleUsers = await Promise.all((note.to || []).map(uri => resolvePerson(uri)));
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}
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//#endergion
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await post(actor, {
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createdAt: activity.published ? new Date(activity.published) : null,
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renote,
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visibility,
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visibleUsers,
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uri
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});
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}
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type visibility = 'public' | 'home' | 'followers' | 'specified';
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function getVisibility(to: string[], cc: string[], actor: IRemoteUser): visibility {
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const PUBLIC = 'https://www.w3.org/ns/activitystreams#Public';
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if (to.includes(PUBLIC)) {
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return 'public';
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} else if (cc.includes(PUBLIC)) {
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return 'home';
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} else if (to.includes(`${actor.uri}/followers`)) {
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return 'followers';
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} else {
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return 'specified';
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}
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}
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