yumechi-no-kuni/packages/backend/src/core/PushNotificationService.ts
2023-03-10 14:22:37 +09:00

114 lines
3.3 KiB
TypeScript

import { Inject, Injectable } from '@nestjs/common';
import push from 'web-push';
import { DI } from '@/di-symbols.js';
import type { Config } from '@/config.js';
import type { Packed } from '@/misc/json-schema';
import { getNoteSummary } from '@/misc/get-note-summary.js';
import type { SwSubscriptionsRepository } from '@/models/index.js';
import { MetaService } from '@/core/MetaService.js';
import { bindThis } from '@/decorators.js';
// Defined also packages/sw/types.ts#L13
type PushNotificationsTypes = {
'notification': Packed<'Notification'>;
'unreadAntennaNote': {
antenna: { id: string, name: string };
note: Packed<'Note'>;
};
'readNotifications': { notificationIds: string[] };
'readAllNotifications': undefined;
'readAntenna': { antennaId: string };
'readAllAntennas': undefined;
};
// Reduce length because push message servers have character limits
function truncateBody<T extends keyof PushNotificationsTypes>(type: T, body: PushNotificationsTypes[T]): PushNotificationsTypes[T] {
if (typeof body !== 'object') return body;
return {
...body,
...(('note' in body && body.note) ? {
note: {
...body.note,
// textをgetNoteSummaryしたものに置き換える
text: getNoteSummary(('type' in body && body.type === 'renote') ? body.note.renote as Packed<'Note'> : body.note),
cw: undefined,
reply: undefined,
renote: undefined,
user: type === 'notification' ? undefined as any : body.note.user,
},
} : {}),
};
}
@Injectable()
export class PushNotificationService {
constructor(
@Inject(DI.config)
private config: Config,
@Inject(DI.swSubscriptionsRepository)
private swSubscriptionsRepository: SwSubscriptionsRepository,
private metaService: MetaService,
) {
}
@bindThis
public async pushNotification<T extends keyof PushNotificationsTypes>(userId: string, type: T, body: PushNotificationsTypes[T]) {
const meta = await this.metaService.fetch();
if (!meta.enableServiceWorker || meta.swPublicKey == null || meta.swPrivateKey == null) return;
// アプリケーションの連絡先と、サーバーサイドの鍵ペアの情報を登録
push.setVapidDetails(this.config.url,
meta.swPublicKey,
meta.swPrivateKey);
// Fetch
const subscriptions = await this.swSubscriptionsRepository.findBy({
userId: userId,
});
for (const subscription of subscriptions) {
// Continue if sendReadMessage is false
if ([
'readNotifications',
'readAllNotifications',
'readAntenna',
'readAllAntennas',
].includes(type) && !subscription.sendReadMessage) continue;
const pushSubscription = {
endpoint: subscription.endpoint,
keys: {
auth: subscription.auth,
p256dh: subscription.publickey,
},
};
push.sendNotification(pushSubscription, JSON.stringify({
type,
body: (type === 'notification' || type === 'unreadAntennaNote') ? truncateBody(type, body) : body,
userId,
dateTime: (new Date()).getTime(),
}), {
proxy: this.config.proxy,
}).catch((err: any) => {
//swLogger.info(err.statusCode);
//swLogger.info(err.headers);
//swLogger.info(err.body);
if (err.statusCode === 410) {
this.swSubscriptionsRepository.delete({
userId: userId,
endpoint: subscription.endpoint,
auth: subscription.auth,
publickey: subscription.publickey,
});
}
});
}
}
}