added configurable upload limits & proper upload limit handling (need to re-run setup)

ass.js

@@ -7,7 +7,7 @@ try {
 }
 
 // Load the config
-const { host, port, useSsl, resourceIdSize, diskFilePath, gfyIdSize, resourceIdType, isProxied, s3enabled } = require('./config.json');
+const { host, port, maxUploadSize, useSsl, resourceIdSize, diskFilePath, gfyIdSize, resourceIdType, isProxied, s3enabled } = require('./config.json');
 
 //#region Imports
 const fs = require('fs-extra');
@@ -113,6 +113,7 @@ function startup() {
 
 	// Upload file
 	app.post('/', doUpload, processUploaded, ({ next }) => next());
+	app.use('/', (err, _req, res, next) => err.code && err.code === 'LIMIT_FILE_SIZE' ? res.status(413).send(`Max upload size: ${maxUploadSize}MB`) : next(err));
 
 	// Process uploaded file
 	app.post('/', (req, res) => {

setup.js

@@ -3,6 +3,7 @@ const config = {
 	host: '0.0.0.0',
 	port: 40115,
 	domain: 'upload.example.com',
+	maxUploadSize: 50,
 	useSsl: true,
 	isProxied: true,
 	resourceIdSize: 12,
@@ -55,6 +56,12 @@ if (require.main === module) {
 				required: true,
 				message: 'You must input a valid domain name or IP to continue'
 			},
+			maxUploadSize: {
+				description: `Max allowable uploaded filesize, in megabytes`,
+				type: 'integer',
+				default: config.maxUploadSize,
+				require: false
+			},
 			useSsl: {
 				description: 'Use SSL (requires reverse proxy!)',
 				type: 'boolean',

storage.js

@@ -8,7 +8,7 @@ const Thumbnail = require('./thumbnails');
 const Vibrant = require('./vibrant');
 const Hash = require('./hash');
 const { getSafeExt, getDatedDirname, sanitize, generateId } = require('./utils');
-const { s3enabled, s3endpoint, s3bucket, s3accessKey, s3secretKey, saveAsOriginal } = require('./config.json');
+const { s3enabled, s3endpoint, s3bucket, s3accessKey, s3secretKey, saveAsOriginal, maxUploadSize } = require('./config.json');
 
 const s3 = new aws.S3({
 	endpoint: new aws.Endpoint(s3endpoint),
@@ -97,7 +97,7 @@ function listAllKeys(resolve, reject, token) {
 }
 
 module.exports = {
-	doUpload: multer({ limits: { fileSize: '100MB' } }).single('file'),
+	doUpload: multer({ limits: { fileSize: `${maxUploadSize}MB` } }).single('file'),
 	processUploaded,
 	deleteS3,
 	bucketSize