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|
import $ from 'cafy';
import define from '../../define';
import config from '../../../../config';
import { createPerson } from '../../../../remote/activitypub/models/person';
import { createNote } from '../../../../remote/activitypub/models/note';
import Resolver from '../../../../remote/activitypub/resolver';
import { ApiError } from '../../error';
import { extractDbHost } from '../../../../misc/convert-host';
import { Users, Notes } from '../../../../models';
import { Note } from '../../../../models/entities/note';
import { User } from '../../../../models/entities/user';
import { fetchMeta } from '../../../../misc/fetch-meta';
import { validActor, validPost } from '../../../../remote/activitypub/type';
export const meta = {
tags: ['federation'],
desc: {
'ja-JP': 'URIを指定してActivityPubオブジェクトを参照します。'
},
requireCredential: false as const,
params: {
uri: {
validator: $.str,
desc: {
'ja-JP': 'ActivityPubオブジェクトのURI'
}
},
},
errors: {
noSuchObject: {
message: 'No such object.',
code: 'NO_SUCH_OBJECT',
id: 'dc94d745-1262-4e63-a17d-fecaa57efc82'
}
}
};
export default define(meta, async (ps) => {
const object = await fetchAny(ps.uri);
if (object) {
return object;
} else {
throw new ApiError(meta.errors.noSuchObject);
}
});
/***
* URIからUserかNoteを解決する
*/
async function fetchAny(uri: string) {
// URIがこのサーバーを指しているなら、ローカルユーザーIDとしてDBからフェッチ
if (uri.startsWith(config.url + '/')) {
const parts = uri.split('/');
const id = parts.pop();
const type = parts.pop();
if (type === 'notes') {
const note = await Notes.findOne(id);
if (note) {
return {
type: 'Note',
object: await Notes.pack(note, null, { detail: true })
};
}
} else if (type === 'users') {
const user = await Users.findOne(id);
if (user) {
return {
type: 'User',
object: await Users.pack(user, null, { detail: true })
};
}
}
}
// ブロックしてたら中断
const meta = await fetchMeta();
if (meta.blockedHosts.includes(extractDbHost(uri))) return null;
// URI(AP Object id)としてDB検索
{
const [user, note] = await Promise.all([
Users.findOne({ uri: uri }),
Notes.findOne({ uri: uri })
]);
const packed = await mergePack(user, note);
if (packed !== null) return packed;
}
// リモートから一旦オブジェクトフェッチ
const resolver = new Resolver();
const object = await resolver.resolve(uri) as any;
// /@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
// これはDBに存在する可能性があるため再度DB検索
if (uri !== object.id) {
if (object.id.startsWith(config.url + '/')) {
const parts = object.id.split('/');
const id = parts.pop();
const type = parts.pop();
if (type === 'notes') {
const note = await Notes.findOne(id);
if (note) {
return {
type: 'Note',
object: await Notes.pack(note, null, { detail: true })
};
}
} else if (type === 'users') {
const user = await Users.findOne(id);
if (user) {
return {
type: 'User',
object: await Users.pack(user, null, { detail: true })
};
}
}
}
const [user, note] = await Promise.all([
Users.findOne({ uri: object.id }),
Notes.findOne({ uri: object.id })
]);
const packed = await mergePack(user, note);
if (packed !== null) return packed;
}
// それでもみつからなければ新規であるため登録
if (validActor.includes(object.type)) {
const user = await createPerson(object.id);
return {
type: 'User',
object: await Users.pack(user, null, { detail: true })
};
}
if (validPost.includes(object.type)) {
const note = await createNote(object.id, undefined, true);
return {
type: 'Note',
object: await Notes.pack(note!, null, { detail: true })
};
}
return null;
}
async function mergePack(user: User | null | undefined, note: Note | null | undefined) {
if (user != null) {
return {
type: 'User',
object: await Users.pack(user, null, { detail: true })
};
}
if (note != null) {
return {
type: 'Note',
object: await Notes.pack(note, null, { detail: true })
};
}
return null;
}
|
