add limit

.env.example

@@ -1,4 +1,5 @@
 APP_PORT=8080
 APP_DEBUG=false
 
-MAXLEN=5120
+MAXLEN=5120
+MAXFILES=128

helpers/content/index.js

@@ -1,26 +1,56 @@
 const fs = require('fs');
 const path = require('path');
 const crypto = require('crypto');
+const glob = require('glob');
 
 const root = path.join(process.cwd(), '/usercontent');
+const { MAXFILES } = process.env;
+
 console.log(root);
 
+
+let initalized = false;
+
+let submitted = 0;
+
+async function init() {
+    if (initalized) return;
+    glob(root + '/**', undefined, (err, files) => {
+        if (err) {
+            console.error(err);
+            return;
+        }
+        files.filter(file => {
+            return !file.startsWith('.');
+        }).forEach(file => {
+            submitted++;
+        });
+        initalized = true;
+    });
+}
+
+function submitted() {return submitted;}
+
 const make_id = () => {
     return crypto.randomBytes(8).toString('hex');
 };
 
 async function get(id) {
+    init();
     return fs.readFileSync(path.join(root, id)).toString();
 }
 
 async function write(fname, data) {
+    init();
+    submitted++;
     return fs.writeFile(path.join(root, fname), data, () => {});
 }
 
 async function create(data) {
+    if (submitted >= MAXFILES) return "NA";
     const id = make_id();
     await write(id, data);
     return id;
 }
 
-module.exports = { get, write, create, make_id };
+module.exports = { get, write, create, make_id, submitted };

package.json

@@ -15,6 +15,7 @@
     "dotenv": "^16.0.3",
     "express": "^4.18.2",
     "express-async-handler": "^1.2.0",
+    "glob": "^9.2.1",
     "pug": "^3.0.2"
   }
 }

routes/main.js

@@ -1,9 +1,13 @@
 const express = require('express');
 const router = express.Router();
 const handler = require('express-async-handler');
+const content = require('../helpers/content');
 
 async function index(req, res) {
-    res.render('main', {maxlen: process.env.MAXLEN});
+    res.render('main', {
+        maxlen: process.env.MAXLEN,
+        exceeded: content.submitted() >= process.env.MAXFILES
+    });
 }
 
 router.get('/', handler(index));

routes/upload.js

@@ -3,7 +3,15 @@ const router = express.Router();
 const handler = require('express-async-handler');
 const content = require('../helpers/content');
 
+const { MAXFILES } = process.env;
+
 async function upload(req, res) {
+
+    if (content.submitted() >= MAXFILES) {
+        res.status(405).send('Not allowed');
+        return;
+    }
+
     const data = req.body.text;
     const id = await content.create(data);
     res.redirect(

views/main.pug

@@ -5,4 +5,10 @@ block content
         p(align='center')
             textarea(name='text' class='data' placeholder='Put your text in here!' + (maxlen ? ` (Max length is ${maxlen} bytes)` : ''))
             br
-            input(type='submit' value='Upload!')
+            if (!exceeded)
+                input(type='submit' value='Upload!')
+        if (exceeded)
+            p(style='color:darkred;font-weight:bold;font-size:9pt')
+                | Max uploads limit exceeded. No more uploads would be accepted.
+                br
+                | Contact site administrator so they would increase the limit or delete some uploads.