119 lines
3.7 KiB
TypeScript
119 lines
3.7 KiB
TypeScript
import { Inject, Injectable } from '@nestjs/common';
|
|
import { IsNull } from 'typeorm';
|
|
import type { ILocalUser, User } from '@/models/entities/User.js';
|
|
import { RelaysRepository, UsersRepository } from '@/models/index.js';
|
|
import { IdService } from '@/core/IdService.js';
|
|
import { Cache } from '@/misc/cache.js';
|
|
import type { Relay } from '@/models/entities/Relay.js';
|
|
import { QueueService } from '@/core/QueueService.js';
|
|
import { CreateSystemUserService } from '@/core/CreateSystemUserService.js';
|
|
import { ApRendererService } from '@/core/remote/activitypub/ApRendererService.js';
|
|
import { DI } from '@/di-symbols.js';
|
|
|
|
const ACTOR_USERNAME = 'relay.actor' as const;
|
|
|
|
@Injectable()
|
|
export class RelayService {
|
|
#relaysCache: Cache<Relay[]>;
|
|
|
|
constructor(
|
|
@Inject(DI.usersRepository)
|
|
private usersRepository: UsersRepository,
|
|
|
|
@Inject(DI.relaysRepository)
|
|
private relaysRepository: RelaysRepository,
|
|
|
|
private idService: IdService,
|
|
private queueService: QueueService,
|
|
private createSystemUserService: CreateSystemUserService,
|
|
private apRendererService: ApRendererService,
|
|
) {
|
|
this.#relaysCache = new Cache<Relay[]>(1000 * 60 * 10);
|
|
}
|
|
|
|
async #getRelayActor(): Promise<ILocalUser> {
|
|
const user = await this.usersRepository.findOneBy({
|
|
host: IsNull(),
|
|
username: ACTOR_USERNAME,
|
|
});
|
|
|
|
if (user) return user as ILocalUser;
|
|
|
|
const created = await this.createSystemUserService.createSystemUser(ACTOR_USERNAME);
|
|
return created as ILocalUser;
|
|
}
|
|
|
|
public async addRelay(inbox: string): Promise<Relay> {
|
|
const relay = await this.relaysRepository.insert({
|
|
id: this.idService.genId(),
|
|
inbox,
|
|
status: 'requesting',
|
|
}).then(x => this.relaysRepository.findOneByOrFail(x.identifiers[0]));
|
|
|
|
const relayActor = await this.#getRelayActor();
|
|
const follow = await this.apRendererService.renderFollowRelay(relay, relayActor);
|
|
const activity = this.apRendererService.renderActivity(follow);
|
|
this.queueService.deliver(relayActor, activity, relay.inbox);
|
|
|
|
return relay;
|
|
}
|
|
|
|
public async removeRelay(inbox: string): Promise<void> {
|
|
const relay = await this.relaysRepository.findOneBy({
|
|
inbox,
|
|
});
|
|
|
|
if (relay == null) {
|
|
throw new Error('relay not found');
|
|
}
|
|
|
|
const relayActor = await this.#getRelayActor();
|
|
const follow = this.apRendererService.renderFollowRelay(relay, relayActor);
|
|
const undo = this.apRendererService.renderUndo(follow, relayActor);
|
|
const activity = this.apRendererService.renderActivity(undo);
|
|
this.queueService.deliver(relayActor, activity, relay.inbox);
|
|
|
|
await this.relaysRepository.delete(relay.id);
|
|
}
|
|
|
|
public async listRelay(): Promise<Relay[]> {
|
|
const relays = await this.relaysRepository.find();
|
|
return relays;
|
|
}
|
|
|
|
public async relayAccepted(id: string): Promise<string> {
|
|
const result = await this.relaysRepository.update(id, {
|
|
status: 'accepted',
|
|
});
|
|
|
|
return JSON.stringify(result);
|
|
}
|
|
|
|
public async relayRejected(id: string): Promise<string> {
|
|
const result = await this.relaysRepository.update(id, {
|
|
status: 'rejected',
|
|
});
|
|
|
|
return JSON.stringify(result);
|
|
}
|
|
|
|
public async deliverToRelays(user: { id: User['id']; host: null; }, activity: any): Promise<void> {
|
|
if (activity == null) return;
|
|
|
|
const relays = await this.#relaysCache.fetch(null, () => this.relaysRepository.findBy({
|
|
status: 'accepted',
|
|
}));
|
|
if (relays.length === 0) return;
|
|
|
|
// TODO
|
|
//const copy = structuredClone(activity);
|
|
const copy = JSON.parse(JSON.stringify(activity));
|
|
if (!copy.to) copy.to = ['https://www.w3.org/ns/activitystreams#Public'];
|
|
|
|
const signed = await this.apRendererService.attachLdSignature(copy, user);
|
|
|
|
for (const relay of relays) {
|
|
this.queueService.deliver(user, signed, relay.inbox);
|
|
}
|
|
}
|
|
}
|