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import Resolver from '../../resolver';
import post from '../../../../services/note/create';
import { IRemoteUser, User } from '../../../../models/entities/user';
import { IAnnounce, IObject, getApId, getApIds } from '../../type';
import { fetchNote, resolveNote } from '../../models/note';
import { resolvePerson } from '../../models/person';
import { apLogger } from '../../logger';
import { extractDbHost } from '../../../../misc/convert-host';
import { fetchMeta } from '../../../../misc/fetch-meta';
import { getApLock } from '../../../../misc/app-lock';
const logger = apLogger;
/**
* アナウンスアクティビティを捌きます
*/
export default async function(resolver: Resolver, actor: IRemoteUser, activity: IAnnounce, note: IObject): Promise<void> {
const uri = getApId(activity);
// アナウンサーが凍結されていたらスキップ
if (actor.isSuspended) {
return;
}
// アナウンス先をブロックしてたら中断
const meta = await fetchMeta();
if (meta.blockedHosts.includes(extractDbHost(uri))) return;
const unlock = await getApLock(uri);
try {
// 既に同じURIを持つものが登録されていないかチェック
const exist = await fetchNote(uri);
if (exist) {
return;
}
// Announce対象をresolve
let renote;
try {
renote = await resolveNote(note);
} catch (e) {
// 対象が4xxならスキップ
if (e.statusCode >= 400 && e.statusCode < 500) {
logger.warn(`Ignored announce target ${note.inReplyTo} - ${e.statusCode}`);
return;
}
logger.warn(`Error in announce target ${note.inReplyTo} - ${e.statusCode || e}`);
throw e;
}
logger.info(`Creating the (Re)Note: ${uri}`);
//#region Visibility
const to = getApIds(activity.to);
const cc = getApIds(activity.cc);
const visibility = getVisibility(to, cc, actor);
let visibleUsers: User[] = [];
if (visibility == 'specified') {
visibleUsers = await Promise.all(to.map(uri => resolvePerson(uri)));
}
//#endergion
await post(actor, {
createdAt: activity.published ? new Date(activity.published) : null,
renote,
visibility,
visibleUsers,
uri
});
} finally {
unlock();
}
}
type visibility = 'public' | 'home' | 'followers' | 'specified';
function getVisibility(to: string[], cc: string[], actor: IRemoteUser): visibility {
const PUBLIC = 'https://www.w3.org/ns/activitystreams#Public';
if (to.includes(PUBLIC)) {
return 'public';
} else if (cc.includes(PUBLIC)) {
return 'home';
} else if (to.includes(`${actor.uri}/followers`)) {
return 'followers';
} else {
return 'specified';
}
}
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