93 lines
3.0 KiB
JavaScript
93 lines
3.0 KiB
JavaScript
import webPush from 'web-push'
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import models from '../models'
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import { COMMENT_DEPTH_LIMIT } from '../../lib/constants'
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webPush.setVapidDetails(
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process.env.VAPID_MAILTO,
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process.env.NEXT_PUBLIC_VAPID_PUBKEY,
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process.env.VAPID_PRIVKEY
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)
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const createPayload = (notification) => {
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// https://web.dev/push-notifications-display-a-notification/#visual-options
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const { title, ...options } = notification
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return JSON.stringify({
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title,
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options: {
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timestamp: Date.now(),
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icon: '/icons/icon_x96.png',
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...options
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}
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})
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}
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const createUserFilter = (tag) => {
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// filter users by notification settings
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const tagMap = {
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REPLY: 'noteAllDescendants',
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MENTION: 'noteMentions',
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TIP: 'noteItemSats'
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}
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const key = tagMap[tag.split('-')[0]]
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return key ? { user: { [key]: true } } : undefined
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}
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const createItemUrl = async ({ id }) => {
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const [rootItem] = await models.$queryRawUnsafe(
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'SELECT subpath(path, -LEAST(nlevel(path), $1::INTEGER), 1)::text AS id FROM "Item" WHERE id = $2::INTEGER',
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COMMENT_DEPTH_LIMIT + 1, Number(id)
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)
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return `/items/${rootItem.id}` + (rootItem.id !== id ? `?commentId=${id}` : '')
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}
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const sendNotification = (subscription, payload) => {
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const { id, endpoint, p256dh, auth } = subscription
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return webPush.sendNotification({ endpoint, keys: { p256dh, auth } }, payload)
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.catch((err) => {
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if (err.statusCode === 400) {
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console.log('[webPush] invalid request: ', err)
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} else if (err.statusCode === 403) {
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console.log('[webPush] auth error: ', err)
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} else if (err.statusCode === 404 || err.statusCode === 410) {
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console.log('[webPush] subscription has expired or is no longer valid: ', err)
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return models.pushSubscription.delete({ where: { id } })
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} else if (err.statusCode === 413) {
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console.log('[webPush] payload too large: ', err)
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} else if (err.statusCode === 429) {
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console.log('[webPush] too many requests: ', err)
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} else {
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console.log('[webPush] error: ', err)
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}
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})
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}
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export async function sendUserNotification (userId, notification) {
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try {
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notification.data ??= {}
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if (notification.item) {
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notification.data.url ??= await createItemUrl(notification.item)
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delete notification.item
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}
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const userFilter = createUserFilter(notification.tag)
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const payload = createPayload(notification)
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const subscriptions = await models.pushSubscription.findMany({
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where: { userId, ...userFilter }
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})
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await Promise.allSettled(
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subscriptions.map(subscription => sendNotification(subscription, payload))
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)
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} catch (err) {
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console.log('[webPush] error sending user notification: ', err)
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}
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}
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export async function replyToSubscription (subscriptionId, notification) {
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try {
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const payload = createPayload(notification)
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const subscription = await models.pushSubscription.findUnique({ where: { id: subscriptionId } })
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await sendNotification(subscription, payload)
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} catch (err) {
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console.log('[webPush] error sending subscription reply: ', err)
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}
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}
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