Image upload process + right-click menu UI

controllers/uploads.js

@@ -2,7 +2,13 @@
 
 var express = require('express');
 var router = express.Router();
-var _ = require('lodash');
+
+var readChunk = require('read-chunk'),
+		fileType = require('file-type'),
+		Promise = require('bluebird'),
+		fs = Promise.promisifyAll(require('fs-extra')),
+		path = require('path'),
+		_ = require('lodash');
 
 var validPathRe = new RegExp("^([a-z0-9\\/-]+\\.[a-z0-9]+)$");
 var validPathThumbsRe = new RegExp("^([0-9]+\\.png)$");
@@ -31,6 +37,54 @@ router.get('/t/*', (req, res, next) => {
 
 });
 
+router.post('/img', lcdata.uploadImgHandler, (req, res, next) => {
+
+	let destFolder = _.chain(req.body.folder).trim().toLower().value();
+	let destFolderPath = lcdata.validateUploadsFolder(destFolder);
+
+	Promise.map(req.files, (f) => {
+
+		let destFilename = '';
+		let destFilePath = '';
+
+		return lcdata.validateUploadsFilename(f.originalname, destFolder).then((fname) => {
+			
+			destFilename = fname;
+			destFilePath = path.resolve(destFolderPath, destFilename);
+
+			return readChunk(f.path, 0, 262);
+
+		}).then((buf) => {
+
+			//-> Check MIME type by magic number
+
+			let mimeInfo = fileType(buf);
+			if(!_.includes(['image/png', 'image/jpeg', 'image/gif', 'image/webp'], mimeInfo.mime)) {
+				return Promise.reject(new Error('Invalid file type.'));
+			}
+			return true;
+
+		}).then(() => {
+
+			//-> Move file to final destination
+
+			return fs.moveAsync(f.path, destFilePath, { clobber: false });
+
+		}).then(() => {
+			return {
+				filename: destFilename,
+				filesize: f.size
+			};
+		});
+
+	}, {concurrency: 3}).then((results) => {
+		res.json({ ok: true, results });
+	}).catch((err) => {
+		res.json({ ok: false, msg: err.message });
+	});
+
+});
+
 router.get('/*', (req, res, next) => {
 
 	let fileName = req.params[0];