169 lines
4.5 KiB
TypeScript
169 lines
4.5 KiB
TypeScript
import { Inject, Injectable, OnApplicationShutdown } from '@nestjs/common';
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import { DI } from '@/di-symbols.js';
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import type { NotesRepository, UserPublickeysRepository, UsersRepository } from '@/models/index.js';
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import type { Config } from '@/config.js';
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import { MemoryKVCache } from '@/misc/cache.js';
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import type { UserPublickey } from '@/models/entities/UserPublickey.js';
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import { CacheService } from '@/core/CacheService.js';
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import type { Note } from '@/models/entities/Note.js';
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import { bindThis } from '@/decorators.js';
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import { LocalUser, RemoteUser } from '@/models/entities/User.js';
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import { getApId } from './type.js';
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import { ApPersonService } from './models/ApPersonService.js';
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import type { IObject } from './type.js';
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export type UriParseResult = {
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/** wether the URI was generated by us */
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local: true;
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/** id in DB */
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id: string;
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/** hint of type, e.g. "notes", "users" */
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type: string;
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/** any remaining text after type and id, not including the slash after id. undefined if empty */
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rest?: string;
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} | {
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/** wether the URI was generated by us */
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local: false;
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/** uri in DB */
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uri: string;
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};
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@Injectable()
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export class ApDbResolverService implements OnApplicationShutdown {
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private publicKeyCache: MemoryKVCache<UserPublickey | null>;
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private publicKeyByUserIdCache: MemoryKVCache<UserPublickey | null>;
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constructor(
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@Inject(DI.config)
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private config: Config,
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@Inject(DI.usersRepository)
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private usersRepository: UsersRepository,
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@Inject(DI.notesRepository)
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private notesRepository: NotesRepository,
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@Inject(DI.userPublickeysRepository)
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private userPublickeysRepository: UserPublickeysRepository,
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private cacheService: CacheService,
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private apPersonService: ApPersonService,
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) {
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this.publicKeyCache = new MemoryKVCache<UserPublickey | null>(Infinity);
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this.publicKeyByUserIdCache = new MemoryKVCache<UserPublickey | null>(Infinity);
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}
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@bindThis
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public parseUri(value: string | IObject): UriParseResult {
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const separator = '/';
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const uri = new URL(getApId(value));
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if (uri.origin !== this.config.url) return { local: false, uri: uri.href };
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const [, type, id, ...rest] = uri.pathname.split(separator);
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return {
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local: true,
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type,
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id,
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rest: rest.length === 0 ? undefined : rest.join(separator),
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};
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}
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/**
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* AP Note => Misskey Note in DB
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*/
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@bindThis
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public async getNoteFromApId(value: string | IObject): Promise<Note | null> {
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const parsed = this.parseUri(value);
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if (parsed.local) {
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if (parsed.type !== 'notes') return null;
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return await this.notesRepository.findOneBy({
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id: parsed.id,
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});
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} else {
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return await this.notesRepository.findOneBy({
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uri: parsed.uri,
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});
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}
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}
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/**
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* AP Person => Misskey User in DB
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*/
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@bindThis
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public async getUserFromApId(value: string | IObject): Promise<LocalUser | RemoteUser | null> {
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const parsed = this.parseUri(value);
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if (parsed.local) {
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if (parsed.type !== 'users') return null;
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return await this.cacheService.userByIdCache.fetchMaybe(parsed.id, () => this.usersRepository.findOneBy({
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id: parsed.id,
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}).then(x => x ?? undefined)) as LocalUser | undefined ?? null;
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} else {
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return await this.cacheService.uriPersonCache.fetch(parsed.uri, () => this.usersRepository.findOneBy({
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uri: parsed.uri,
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})) as RemoteUser | null;
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}
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}
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/**
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* AP KeyId => Misskey User and Key
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*/
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@bindThis
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public async getAuthUserFromKeyId(keyId: string): Promise<{
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user: RemoteUser;
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key: UserPublickey;
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} | null> {
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const key = await this.publicKeyCache.fetch(keyId, async () => {
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const key = await this.userPublickeysRepository.findOneBy({
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keyId,
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});
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if (key == null) return null;
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return key;
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}, key => key != null);
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if (key == null) return null;
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return {
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user: await this.cacheService.findUserById(key.userId) as RemoteUser,
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key,
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};
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}
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/**
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* AP Actor id => Misskey User and Key
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*/
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@bindThis
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public async getAuthUserFromApId(uri: string): Promise<{
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user: RemoteUser;
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key: UserPublickey | null;
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} | null> {
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const user = await this.apPersonService.resolvePerson(uri) as RemoteUser;
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if (user == null) return null;
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const key = await this.publicKeyByUserIdCache.fetch(user.id, () => this.userPublickeysRepository.findOneBy({ userId: user.id }), v => v != null);
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return {
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user,
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key,
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};
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}
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@bindThis
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public dispose(): void {
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this.publicKeyCache.dispose();
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this.publicKeyByUserIdCache.dispose();
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}
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@bindThis
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public onApplicationShutdown(signal?: string | undefined): void {
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this.dispose();
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}
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}
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