Merged main & websocket server, refactored libs, image uploads fixes

libs/local.js

@@ -0,0 +1,152 @@
+"use strict";
+
+var path = require('path'),
+	Promise = require('bluebird'),
+	fs = Promise.promisifyAll(require('fs-extra')),
+	multer  = require('multer'),
+	_ = require('lodash');
+
+/**
+ * Local Data Storage
+ *
+ * @param      {Object}  appconfig  The application configuration
+ */
+module.exports = {
+
+	_uploadsPath: './repo/uploads',
+	_uploadsThumbsPath: './data/thumbs',
+
+	uploadImgHandler: null,
+
+	/**
+	 * Initialize Local Data Storage model
+	 *
+	 * @param      {Object}  appconfig  The application config
+	 * @return     {Object}  Local Data Storage model instance
+	 */
+	init(appconfig) {
+
+		this._uploadsPath = path.resolve(ROOTPATH, appconfig.paths.repo, 'uploads');
+		this._uploadsThumbsPath = path.resolve(ROOTPATH, appconfig.paths.data, 'thumbs');
+
+		this.createBaseDirectories(appconfig);
+		this.initMulter(appconfig);
+
+		return this;
+
+	},
+
+	/**
+	 * Init Multer upload handlers
+	 *
+	 * @param      {Object}   appconfig  The application config
+	 * @return     {boolean}  Void
+	 */
+	initMulter(appconfig) {
+
+		this.uploadImgHandler = multer({
+			storage: multer.diskStorage({
+				destination: (req, f, cb) => {
+					cb(null, path.resolve(ROOTPATH, appconfig.paths.data, 'temp-upload'))
+				}
+			}),
+			fileFilter: (req, f, cb) => {
+
+				//-> Check filesize (3 MB max)
+
+				if(f.size > 3145728) {
+					return cb(null, false);
+				}
+
+				//-> Check MIME type (quick check only)
+
+				if(!_.includes(['image/png', 'image/jpeg', 'image/gif', 'image/webp'], f.mimetype)) {
+					return cb(null, false);
+				}
+
+				cb(null, true);
+			}
+		}).array('imgfile', 20);
+
+		return true;
+
+	},
+
+	/**
+	 * Creates a base directories (Synchronous).
+	 *
+	 * @param      {Object}  appconfig  The application config
+	 * @return     {Void}  Void
+	 */
+	createBaseDirectories(appconfig) {
+
+		winston.info('[SERVER] Checking data directories...');
+
+		try {
+			fs.ensureDirSync(path.resolve(ROOTPATH, appconfig.paths.data));
+			fs.ensureDirSync(path.resolve(ROOTPATH, appconfig.paths.data, './cache'));
+			fs.ensureDirSync(path.resolve(ROOTPATH, appconfig.paths.data, './thumbs'));
+			fs.ensureDirSync(path.resolve(ROOTPATH, appconfig.paths.data, './temp-upload'));
+
+			fs.ensureDirSync(path.resolve(ROOTPATH, appconfig.paths.repo));
+			fs.ensureDirSync(path.resolve(ROOTPATH, appconfig.paths.repo, './uploads'));
+		} catch (err) {
+			winston.error(err);
+		}
+
+		winston.info('[SERVER] Data and Repository directories are OK.');
+
+		return;
+
+	},
+
+	/**
+	 * Gets the uploads path.
+	 *
+	 * @return     {String}  The uploads path.
+	 */
+	getUploadsPath() {
+		return this._uploadsPath;
+	},
+
+	/**
+	 * Gets the thumbnails folder path.
+	 *
+	 * @return     {String}  The thumbs path.
+	 */
+	getThumbsPath() {
+		return this._uploadsThumbsPath;
+	},
+
+	/**
+	 * Check if filename is valid and unique
+	 *
+	 * @param      {String}           f       The filename
+	 * @param      {String}           fld     The containing folder
+	 * @return     {Promise<String>}  Promise of the accepted filename
+	 */
+	validateUploadsFilename(f, fld) {
+
+		let fObj = path.parse(f);
+		let fname = _.chain(fObj.name).trim().toLower().kebabCase().value().replace(/[^a-z0-9\-]+/g, '');
+		let fext = _.toLower(fObj.ext);
+
+		if(!_.includes(['.jpg', '.jpeg', '.png', '.gif', '.webp'], fext)) {
+			fext = '.png';
+		}
+
+		f = fname + fext;
+		let fpath = path.resolve(this._uploadsPath, fld, f);
+
+		return fs.statAsync(fpath).then((s) => {
+			throw new Error('File ' + f + ' already exists.');
+		}).catch((err) => {
+			if(err.code === 'ENOENT') {
+				return f;
+			}
+			throw err;
+		});
+
+	},
+
+};