95 lines
2.8 KiB
TypeScript
95 lines
2.8 KiB
TypeScript
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import express, { Request, Response } from "express"
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import { json as bodyParserJson, urlencoded as bodyParserUrlEncoded } from "body-parser"
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import cookieParser from "cookie-parser"
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import { Axios } from "axios"
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const app = express()
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app.use(bodyParserJson())
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app.use(bodyParserUrlEncoded({ extended: true }))
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app.use(cookieParser())
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app.use(express.static(__dirname + "/public"))
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app.get("/", (req: Request, res: Response) => {
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res.render("layout")
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})
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app.post("/register", async (req: Request, res: Response) => {
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let isRegistered = req.cookies.isRegistered
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if(isRegistered) {
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return res.send("服务器正在探索：利维坦，涅索斯轨道")
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}
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let username: string = req.body.RegisterUsername
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let password: string = req.body.RegisterPassword
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if(!username || !password) {
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return res.status(400).send("注册失败：无效的用户名或密码！")
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}
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if(username.length < 4) {
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return res.status(400).send("账号太短啦～")
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}
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if(password.length < 4) {
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return res.status(400).send("密码太短啦～")
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}
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if(await explode_does_user_exists(username)) {
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return res.status(400).send("名字撞车啦！")
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}
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let hasId = await explode_register(username, password)
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if(hasId != null) {
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// 使用 cookie 避免重复注册
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res.cookie("isRegistered", "1", {
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expires: new Date(Date.now() + 9000000),
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httpOnly: true
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})
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return res.send(`注册成功，用户ID：${hasId._id}。要记住哦！`)
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} else {
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return res.status(500).send("出错啦，注册失败了。")
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}
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})
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const server = app.listen(8090, () => console.log("Server is running..."))
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const _axios = new Axios({})
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type HasId = {
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_id: string
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}
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async function explode_graphql<T>(query: string) {
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return _axios.post<T>("http://43.142.173.63:10483/graphql", JSON.stringify({
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"operationName": "",
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"query": query,
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variables: {}
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}), {
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// idk why is this happening, but it just happened that
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// the response is string which should be transformed to JSON auto.
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transformResponse: (resp) => JSON.parse(resp)
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})
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}
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async function explode_register(username: string, password: string) {
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let response = await explode_graphql<{
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data: {
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registerUser: HasId
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}
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}>(`mutation { registerUser(username: "${username}", password: "${password}") { _id } }`)
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return response.data.data.registerUser
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}
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async function explode_does_user_exists(username: string) {
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let response = await explode_graphql<{
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data: {
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userByUsername: HasId | undefined
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}
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}>(`query { userByUsername(username: "${username}") { _id } }`)
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return !!response.data.data.userByUsername
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}
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