forked from FoundKeyGang/FoundKey
146 lines
3.7 KiB
TypeScript
146 lines
3.7 KiB
TypeScript
import { createPerson } from '@/remote/activitypub/models/person.js';
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import { createNote } from '@/remote/activitypub/models/note.js';
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import { DbResolver } from '@/remote/activitypub/db-resolver.js';
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import { Resolver } from '@/remote/activitypub/resolver.js';
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import { extractPunyHost } from '@/misc/convert-host.js';
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import { Users, Notes } from '@/models/index.js';
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import { Note } from '@/models/entities/note.js';
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import { ILocalUser, User } from '@/models/entities/user.js';
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import { isActor, isPost } from '@/remote/activitypub/type.js';
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import { SchemaType } from '@/misc/schema.js';
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import { HOUR } from '@/const.js';
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import { shouldBlockInstance } from '@/misc/should-block-instance.js';
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import define from '@/server/api/define.js';
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import { ApiError } from '@/server/api/error.js';
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export const meta = {
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tags: ['federation'],
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requireCredential: true,
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description: 'Shows the requested object. If necessary, fetches the object from the remote server.',
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limit: {
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duration: HOUR,
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max: 30,
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},
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errors: ['NO_SUCH_OBJECT'],
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res: {
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optional: false, nullable: false,
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oneOf: [
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{
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type: 'object',
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properties: {
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type: {
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type: 'string',
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optional: false, nullable: false,
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enum: ['User'],
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},
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object: {
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type: 'object',
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optional: false, nullable: false,
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ref: 'UserDetailedNotMe',
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},
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},
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},
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{
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type: 'object',
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properties: {
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type: {
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type: 'string',
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optional: false, nullable: false,
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enum: ['Note'],
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},
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object: {
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type: 'object',
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optional: false, nullable: false,
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ref: 'Note',
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},
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},
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},
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],
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},
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} as const;
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export const paramDef = {
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type: 'object',
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properties: {
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uri: { type: 'string' },
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},
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required: ['uri'],
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} as const;
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// eslint-disable-next-line import/no-default-export
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export default define(meta, paramDef, async (ps, me) => {
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const object = await fetchAny(ps.uri, me);
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if (object) {
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return object;
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} else {
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throw new ApiError('NO_SUCH_OBJECT');
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}
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});
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/***
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* URIからUserかNoteを解決する
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*/
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async function fetchAny(uri: string, me: ILocalUser | null | undefined): Promise<SchemaType<typeof meta['res']> | null> {
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// Stop if the host is blocked.
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const host = extractPunyHost(uri);
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if (await shouldBlockInstance(host)) {
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return null;
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}
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const dbResolver = new DbResolver();
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let local = await mergePack(me, ...await Promise.all([
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dbResolver.getUserFromApId(uri),
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dbResolver.getNoteFromApId(uri),
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]));
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if (local != null) return local;
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// fetch object from remote
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const resolver = new Resolver();
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// allow redirect
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const object = await resolver.resolve(uri, true) as any;
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// /@user のような正規id以外で取得できるURIが指定されていた場合、ここで初めて正規URIが確定する
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// これはDBに存在する可能性があるため再度DB検索
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if (uri !== object.id) {
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local = await mergePack(me, ...await Promise.all([
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dbResolver.getUserFromApId(object.id),
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dbResolver.getNoteFromApId(object.id),
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]));
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if (local != null) return local;
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}
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return await mergePack(
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me,
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isActor(object) ? await createPerson(object, resolver) : null,
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isPost(object) ? await createNote(object, resolver, true) : null,
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);
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}
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async function mergePack(me: ILocalUser | null | undefined, user: User | null | undefined, note: Note | null | undefined): Promise<SchemaType<typeof meta.res> | null> {
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if (user != null) {
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return {
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type: 'User',
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object: await Users.pack(user, me, { detail: true }),
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};
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} else if (note != null) {
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try {
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const object = await Notes.pack(note, me, { detail: true });
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return {
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type: 'Note',
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object,
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};
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} catch (e) {
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return null;
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}
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}
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return null;
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}
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