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wiki/libs/local.js

176 lines
4.5 KiB

'use strict'
const path = require('path')
const Promise = require('bluebird')
const fs = Promise.promisifyAll(require('fs-extra'))
const multer = require('multer')
const os = require('os')
const _ = require('lodash')
/**
* Local Data Storage
*/
module.exports = {
_uploadsPath: './repo/uploads',
_uploadsThumbsPath: './data/thumbs',
uploadImgHandler: null,
/**
* Initialize Local Data Storage model
*
* @return {Object} Local Data Storage model instance
*/
init () {
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) {
let maxFileSizes = {
img: appconfig.uploads.maxImageFileSize * 1024 * 1024,
file: appconfig.uploads.maxOtherFileSize * 1024 * 1024
}
// -> IMAGES
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
if (f.size > maxFileSizes.img) {
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)
// -> FILES
this.uploadFileHandler = multer({
storage: multer.diskStorage({
destination: (req, f, cb) => {
cb(null, path.resolve(ROOTPATH, appconfig.paths.data, 'temp-upload'))
}
}),
fileFilter: (req, f, cb) => {
// -> Check filesize
if (f.size > maxFileSizes.file) {
return cb(null, false)
}
cb(null, true)
}
}).array('binfile', 20)
return true
},
/**
* Creates a base directories (Synchronous).
*
* @param {Object} appconfig The application config
* @return {Void} Void
*/
createBaseDirectories (appconfig) {
winston.info('[SERVER.Local] Checking data directories...')
try {
fs.ensureDirSync(path.resolve(ROOTPATH, appconfig.paths.data))
fs.emptyDirSync(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'))
if (os.type() !== 'Windows_NT') {
fs.chmodSync(path.resolve(ROOTPATH, appconfig.paths.data, './temp-upload'), '644')
}
fs.ensureDirSync(path.resolve(ROOTPATH, appconfig.paths.repo))
fs.ensureDirSync(path.resolve(ROOTPATH, appconfig.paths.repo, './uploads'))
if (os.type() !== 'Windows_NT') {
fs.chmodSync(path.resolve(ROOTPATH, appconfig.paths.repo, './uploads'), '644')
}
} catch (err) {
winston.error(err)
}
winston.info('[SERVER.Local] Data and Repository directories are OK.')
},
/**
* 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
* @param {boolean} isImage Indicates if image
* @return {Promise<String>} Promise of the accepted filename
*/
validateUploadsFilename (f, fld, isImage) {
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 (isImage && !_.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
})
}
}