FoundKey/src/remote/activitypub/objects/note.ts

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2018-04-08 19:08:56 +00:00
import { JSDOM } from 'jsdom';
import * as debug from 'debug';
import config from '../../../config';
import Resolver from '../resolver';
import Note, { INote } from '../../../models/note';
import post from '../../../services/note/create';
import { INote as INoteActivityStreamsObject, IObject } from '../type';
import { resolvePerson } from './person';
import { resolveImage } from './image';
import { IRemoteUser } from '../../../models/user';
const log = debug('misskey:activitypub');
/**
* Noteをフェッチします
*
* Misskeyに対象のNoteが登録されていればそれを返します
*/
export async function fetchNote(value: string | IObject, resolver?: Resolver): Promise<INote> {
const uri = typeof value == 'string' ? value : value.id;
// URIがこのサーバーを指しているならデータベースからフェッチ
if (uri.startsWith(config.url + '/')) {
return await Note.findOne({ _id: uri.split('/').pop() });
}
//#region このサーバーに既に登録されていたらそれを返す
const exist = await Note.findOne({ uri });
if (exist) {
return exist;
}
//#endregion
return null;
}
/**
* Noteを作成します
*/
export async function createNote(value: any, resolver?: Resolver, silent = false): Promise<INote> {
if (resolver == null) resolver = new Resolver();
const object = await resolver.resolve(value) as any;
if (object == null || object.type !== 'Note') {
throw new Error('invalid note');
}
const note: INoteActivityStreamsObject = object;
log(`Creating the Note: ${note.id}`);
// 投稿者をフェッチ
const actor = await resolvePerson(note.attributedTo) as IRemoteUser;
//#region Visibility
let visibility = 'public';
if (!note.to.includes('https://www.w3.org/ns/activitystreams#Public')) visibility = 'unlisted';
if (note.cc.length == 0) visibility = 'private';
// TODO
if (visibility != 'public') throw new Error('unspported visibility');
//#endergion
// 添付メディア
// TODO: attachmentは必ずしもImageではない
// TODO: attachmentは必ずしも配列ではない
const media = note.attachment
? await Promise.all(note.attachment.map(x => resolveImage(actor, x)))
: [];
// リプライ
const reply = note.inReplyTo ? await resolveNote(note.inReplyTo, resolver) : null;
const { window } = new JSDOM(note.content);
return await post(actor, {
createdAt: new Date(note.published),
media,
reply,
renote: undefined,
text: window.document.body.textContent,
viaMobile: false,
geo: undefined,
visibility,
uri: note.id
}, silent);
}
/**
* Noteを解決します
*
* Misskeyに対象のNoteが登録されていればそれを返し
* Misskeyに登録しそれを返します
*/
export async function resolveNote(value: string | IObject, resolver?: Resolver): Promise<INote> {
const uri = typeof value == 'string' ? value : value.id;
//#region このサーバーに既に登録されていたらそれを返す
const exist = await fetchNote(uri);
if (exist) {
return exist;
}
//#endregion
// リモートサーバーからフェッチしてきて登録
return await createNote(value, resolver);
}