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feat: added image ratelimit

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원더 2021-01-24 13:53:47 +09:00
parent 64f7d82aae
commit 79aa4f9159
1 changed files with 21 additions and 7 deletions
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28
utils/Query.ts
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@ -3,15 +3,17 @@ import fetch from 'node-fetch'
// import fs from 'fs'
import { TLRU } from 'tlru'
import StreamCache from 'stream-cache'
import DataLoader from 'dataloader'
import { User as DiscordUser } from 'discord.js'
import { Stream } from 'stream'
import { Bot, User, ListType, BotList } from '@types'
import { cats, DiscordEnpoints } from './Constants'
import { cats } from './Constants'
import knex from './Knex'
import DataLoader from 'dataloader'
import DiscordBot from './DiscordBot'
import bufferToStream from './Tools'
import { User as DiscordUser } from 'discord.js'
export const imageRateLimit = new TLRU<unknown, number>({ maxAgeMs: 60000 })
// const publicPem = fs.readFileSync('./public.pem')
// const privateKey = fs.readFileSync('./private.key')
@ -190,9 +192,9 @@ async function getBotList(type: ListType, page = 1, query?: string):Promise<BotL
return { type, data: (await Promise.all(res.map(async el => await getBot(el.id)))).map(r=> ({...r})), currentPage: page, totalPage: Math.ceil(Number(count) / 16) }
}
async function getImage(url: string){
async function getImage(url: string):Promise<Stream> {
const res = await fetch(url)
if(!res.ok) throw new Error(`unexpected response ${res.statusText}`)
if(!res.ok) return null
// const buf = await res.buffer()
// const readable = bufferToStream(buf)
// await readable.read()
@ -204,6 +206,11 @@ async function getDiscordUser(id: string):Promise<DiscordUser> {
return DiscordBot.users.cache.get(id) ?? await DiscordBot.users.fetch(id, false, true).then(u => u).catch(()=>null)
}
async function addRequest(ip: string, map: TLRU<unknown, number>) {
if(!map.has(ip)) map.set(ip, 0)
map.set(ip, map.get(ip) + 1)
}
export const get = {
discord: {
user: new DataLoader(
@ -245,6 +252,13 @@ export const get = {
user: new DataLoader(
async (urls: string[]) =>
(await Promise.all(urls.map(async (url: string) => await getImage(url))))
, { cacheMap: new TLRU({ maxStoreSize: 1000, maxAgeMs: 43200000 }) }),
, { cacheMap: new TLRU({ maxStoreSize: 5000, maxAgeMs: 43200000 }) }),
}
}
export const ratelimit = {
image: (ip: string) => {
addRequest(ip, imageRateLimit)
return imageRateLimit.get(ip)
}
}