我正在做一个视频播放器应用程序，我想列出我的目录中的所有文件通过服务器访问。我还通过MongoDB使用身份验证。我想列出videos.ejs页面中的所有文件，以便用户可以看到目录中的文件列表并访问这些文件。我正在使用Node.js和EJS，但我被卡住了。如果你能帮我做这件事就太好了。下面是我的app.js:

//jshint esversion:6

require('dotenv').config();
const express = require ("express");
const bodyParser = require ("body-parser");
const ejs = require ("ejs");
const  mongoose  = require("mongoose");
const encrypt = require("mongoose-encryption");
const testFolder = 'public/vids/';
const fs = require('fs');
const app = express();
var list = "" ;

app.set("view engine", "ejs");

app.use(bodyParser.urlencoded({ extended: true }));

mongoose.connect("mongodb://localhost:27017/userDB", {useNewUrlParser: true});

const userSchema = new mongoose.Schema({
    email: String,
    password: String
});
const secret = "Thisismylilkey";

userSchema.plugin(encrypt, {secret: secret, encryptedFields: ['password'] });

console.log(fs.readdirSync);

const User = new mongoose.model("User", userSchema);


app.use(express.static("public"));


app.get("/register", function(req, res){
    res.render("register");
});

app.post("/register", function (req, res) {
    const newUser = new User({
        email: req.body.username,
        password: req.body.password
    });
    newUser.save(function(err){
        if(err){
            console.log(err);
        }else{
            res.render("home");
        }
    });
    
});

app.get("/", function (req, res) {
    res.render("login");
});

app.post("/", function (req, res) {
    const username = req.body.username;
    const password = req.body.password;

    User.findOne({ email: username }, function (err, foundUser) {
        if (err) {
            console.log(err);
        } else {
            if (foundUser) {
                if (foundUser.password === password) {

                    res.render("home");

                    app.get("/home", function (req, res) {
                        res.render("home");
                    });

                    app.get("/music", function (req, res) {
                        res.render("music");
                    });

                    app.get("/videos", function (req, res) {
                        fs.readdir(testFolder, (err, files) => {
                            files.forEach(file => {
                                list = file;
                                console.log(list);
                            });
                        });

                        res.render("videos", { listing: list });                    
                    });

                    app.get("/documents", function (req, res) {
                        res.render("docs");
                    });

                    app.get("/photos", function (req, res) {
                        res.render("photos");
                    });

                    app.get("/player", function(req, res){
                        res.render("player")
                    });   

                }else{
                    res.send("Get the hell out of here :p")
                }
            }
        }
    });

});




app.listen(3000, '0.0.0.0' ,function(){
    console.log("server started at port 3000");
});

这是我的视频。ejs:

    <%- include("partials/header"); -%>

<h1 class="pg-title">videos</h1>

<div>
    <video width="auto" height="240" controls>
        <source src="/vids/<%= listing %>" type="video/mp4">
    </video>

    <a href="/player"><%= listing %></a>
    <h1>name <%= listing %> </h1>
</div>


<%- include("partials/footer"); -%>