mirror of
https://github.com/BobbyWibowo/lolisafe.git
synced 2024-12-13 16:06:21 +00:00
496 lines
15 KiB
JavaScript
496 lines
15 KiB
JavaScript
const config = require('./../config')
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const db = require('knex')(config.database)
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const EventEmitter = require('events')
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const fs = require('fs')
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const path = require('path')
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const randomstring = require('randomstring')
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const utils = require('./utilsController')
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const Zip = require('jszip')
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const albumsController = {}
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const maxTries = config.uploads.maxTries || 1
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const homeDomain = config.homeDomain || config.domain
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const uploadsDir = path.join(__dirname, '..', config.uploads.folder)
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const zipsDir = path.join(uploadsDir, 'zips')
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const zipMaxTotalSize = config.cloudflare.zipMaxTotalSize
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const zipMaxTotalSizeBytes = parseInt(config.cloudflare.zipMaxTotalSize) * 1000000
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const zipOptions = config.uploads.jsZipOptions
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// Force 'type' option to 'nodebuffer'
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zipOptions.type = 'nodebuffer'
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// Apply fallbacks for missing config values
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if (zipOptions.streamFiles === undefined) zipOptions.streamFiles = true
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if (zipOptions.compression === undefined) zipOptions.compression = 'DEFLATE'
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if (zipOptions.compressionOptions === undefined || zipOptions.compressionOptions.level === undefined)
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zipOptions.compressionOptions = { level: 1 }
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albumsController.zipEmitters = new Map()
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class ZipEmitter extends EventEmitter {
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constructor (identifier) {
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super()
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this.identifier = identifier
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this.once('done', () => albumsController.zipEmitters.delete(this.identifier))
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}
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}
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albumsController.list = async (req, res, next) => {
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const user = await utils.authorize(req, res)
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if (!user) return
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let fields = ['id', 'name']
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if (req.params.sidebar === undefined)
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fields = fields.concat(['timestamp', 'identifier', 'editedAt', 'download', 'public', 'description'])
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const albums = await db.table('albums')
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.select(fields)
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.where({
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enabled: 1,
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userid: user.id
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})
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if (req.params.sidebar !== undefined)
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return res.json({ success: true, albums })
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const ids = []
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for (const album of albums) {
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album.download = album.download !== 0
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album.public = album.public !== 0
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ids.push(album.id)
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}
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const files = await db.table('files')
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.whereIn('albumid', ids)
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.select('albumid')
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const albumsCount = {}
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for (const id of ids) albumsCount[id] = 0
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for (const file of files) albumsCount[file.albumid] += 1
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for (const album of albums) album.files = albumsCount[album.id]
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return res.json({ success: true, albums, homeDomain })
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}
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albumsController.create = async (req, res, next) => {
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const user = await utils.authorize(req, res)
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if (!user) return
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const name = utils.escape(req.body.name)
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if (name === undefined || name === '')
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return res.json({ success: false, description: 'No album name specified.' })
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const album = await db.table('albums')
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.where({
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name,
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enabled: 1,
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userid: user.id
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})
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.first()
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if (album)
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return res.json({ success: false, description: 'There\'s already an album with that name.' })
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const identifier = await albumsController.getUniqueRandomName()
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.catch(error => {
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res.json({ success: false, description: error.toString() })
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})
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if (!identifier) return
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const ids = await db.table('albums').insert({
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name,
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enabled: 1,
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userid: user.id,
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identifier,
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timestamp: Math.floor(Date.now() / 1000),
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editedAt: 0,
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zipGeneratedAt: 0,
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download: (req.body.download === false || req.body.download === 0) ? 0 : 1,
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public: (req.body.public === false || req.body.public === 0) ? 0 : 1,
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description: utils.escape(req.body.description) || ''
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})
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utils.invalidateStatsCache('albums')
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return res.json({ success: true, id: ids[0] })
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}
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albumsController.getUniqueRandomName = () => {
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return new Promise((resolve, reject) => {
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const select = i => {
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const identifier = randomstring.generate(config.uploads.albumIdentifierLength)
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db.table('albums')
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.where('identifier', identifier)
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.then(rows => {
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if (!rows || !rows.length) return resolve(identifier)
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console.log(`An album with identifier ${identifier} already exists (${++i}/${maxTries}).`)
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if (i < maxTries) return select(i)
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// eslint-disable-next-line prefer-promise-reject-errors
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return reject('Sorry, we could not allocate a unique random identifier. Try again?')
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})
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}
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// Get us a unique random identifier
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select(0)
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})
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}
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albumsController.delete = async (req, res, next) => {
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const user = await utils.authorize(req, res)
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if (!user) return
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const id = req.body.id
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const purge = req.body.purge
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if (id === undefined || id === '')
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return res.json({ success: false, description: 'No album specified.' })
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let failed = []
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if (purge) {
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const files = await db.table('files')
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.where({
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albumid: id,
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userid: user.id
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})
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if (files.length) {
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const ids = files.map(file => file.id)
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failed = await utils.bulkDeleteFiles('id', ids, user)
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if (failed.length === ids.length)
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return res.json({ success: false, description: 'Could not delete any of the files associated with the album.' })
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}
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}
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await db.table('albums')
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.where({
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id,
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userid: user.id
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})
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.update('enabled', 0)
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utils.invalidateStatsCache('albums')
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const identifier = await db.table('albums')
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.select('identifier')
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.where({
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id,
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userid: user.id
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})
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.first()
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.then(row => row.identifier)
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// Unlink zip archive of the album if it exists
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const zipPath = path.join(zipsDir, `${identifier}.zip`)
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fs.unlink(zipPath, error => {
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if (error && error.code !== 'ENOENT') {
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console.error(error)
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return res.json({ success: false, description: error.toString(), failed })
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}
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res.json({ success: true, failed })
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})
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}
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albumsController.edit = async (req, res, next) => {
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const user = await utils.authorize(req, res)
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if (!user) return
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const id = parseInt(req.body.id)
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if (isNaN(id))
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return res.json({ success: false, description: 'No album specified.' })
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const name = utils.escape(req.body.name)
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if (name === undefined || name === '')
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return res.json({ success: false, description: 'No name specified.' })
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const album = await db.table('albums')
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.where({
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id,
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userid: user.id,
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enabled: 1
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})
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.first()
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if (!album)
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return res.json({ success: false, description: 'Could not get album with the specified ID.' })
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else if (album.id !== id)
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return res.json({ success: false, description: 'Name already in use.' })
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else if (req._old && (album.id === id))
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// Old rename API
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return res.json({ success: false, description: 'You did not specify a new name.' })
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await db.table('albums')
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.where({
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id,
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userid: user.id
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})
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.update({
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name,
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download: Boolean(req.body.download),
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public: Boolean(req.body.public),
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description: utils.escape(req.body.description) || ''
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})
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utils.invalidateStatsCache('albums')
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if (req.body.requestLink) {
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const oldIdentifier = await db.table('albums')
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.select('identifier')
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.where({
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id,
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userid: user.id
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})
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.first()
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.then(row => row.identifier)
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const identifier = await albumsController.getUniqueRandomName()
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.catch(error => {
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res.json({ success: false, description: error.toString() })
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})
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if (!identifier) return
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await db.table('albums')
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.where({
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id,
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userid: user.id
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})
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.update('identifier', identifier)
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// Rename zip archive of the album if it exists
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const zipPath = path.join(zipsDir, `${oldIdentifier}.zip`)
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return fs.access(zipPath, error => {
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if (error) return res.json({ success: true, identifier })
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fs.rename(zipPath, path.join(zipsDir, `${identifier}.zip`), error => {
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if (!error) return res.json({ success: true, identifier })
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console.error(error)
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res.json({ success: false, description: error.toString() })
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})
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})
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}
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return res.json({ success: true, name })
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}
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albumsController.rename = async (req, res, next) => {
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req._old = true
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req.body = { name: req.body.name }
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return albumsController.edit(req, res, next)
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}
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albumsController.get = async (req, res, next) => {
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// TODO: Something, can't remember...
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const identifier = req.params.identifier
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if (identifier === undefined)
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return res.status(401).json({ success: false, description: 'No identifier provided.' })
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const album = await db.table('albums')
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.where({
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identifier,
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enabled: 1
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})
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.first()
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if (!album)
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return res.json({ success: false, description: 'Album not found.' })
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else if (album.public === 0)
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return res.status(401).json({
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success: false,
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description: 'This album is not available for public.'
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})
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const title = album.name
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const files = await db.table('files')
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.select('name')
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.where('albumid', album.id)
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.orderBy('id', 'DESC')
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for (const file of files) {
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file.file = `${config.domain}/${file.name}`
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const extname = utils.extname(file.name)
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if (utils.mayGenerateThumb(extname))
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file.thumb = `${config.domain}/thumbs/${file.name.slice(0, -extname.length)}.png`
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}
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return res.json({
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success: true,
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title,
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count: files.length,
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files
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})
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}
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albumsController.generateZip = async (req, res, next) => {
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const versionString = parseInt(req.query.v)
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const download = (filePath, fileName) => {
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const headers = { 'Access-Control-Allow-Origin': '*' }
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if (versionString > 0)
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// Cache-Control header is useful when using CDN (max-age: 30 days)
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headers['Cache-Control'] = 'public, max-age=2592000, must-revalidate, proxy-revalidate, immutable, stale-while-revalidate=86400, stale-if-error=604800'
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return res.download(filePath, fileName, { headers })
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}
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const identifier = req.params.identifier
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if (identifier === undefined)
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return res.status(401).json({
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success: false,
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description: 'No identifier provided.'
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})
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if (!config.uploads.generateZips)
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return res.status(401).json({ success: false, description: 'Zip generation disabled.' })
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const album = await db.table('albums')
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.where({
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identifier,
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enabled: 1
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})
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.first()
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if (!album)
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return res.json({ success: false, description: 'Album not found.' })
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else if (album.download === 0)
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return res.json({ success: false, description: 'Download for this album is disabled.' })
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if ((!versionString || versionString <= 0) && album.editedAt)
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return res.redirect(`${album.identifier}?v=${album.editedAt}`)
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if (album.zipGeneratedAt > album.editedAt) {
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const filePath = path.join(zipsDir, `${identifier}.zip`)
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const exists = await new Promise(resolve => fs.access(filePath, error => resolve(!error)))
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if (exists) {
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const fileName = `${album.name}.zip`
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return download(filePath, fileName)
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}
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}
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if (albumsController.zipEmitters.has(identifier)) {
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console.log(`Waiting previous zip task for album: ${identifier}.`)
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return albumsController.zipEmitters.get(identifier).once('done', (filePath, fileName, json) => {
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if (filePath && fileName)
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download(filePath, fileName)
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else if (json)
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res.json(json)
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})
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}
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albumsController.zipEmitters.set(identifier, new ZipEmitter(identifier))
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console.log(`Starting zip task for album: ${identifier}.`)
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const files = await db.table('files')
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.select('name', 'size')
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.where('albumid', album.id)
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if (files.length === 0) {
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console.log(`Finished zip task for album: ${identifier} (no files).`)
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const json = { success: false, description: 'There are no files in the album.' }
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albumsController.zipEmitters.get(identifier).emit('done', null, null, json)
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return res.json(json)
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}
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if (zipMaxTotalSize) {
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const totalSizeBytes = files.reduce((accumulator, file) => accumulator + parseInt(file.size), 0)
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if (totalSizeBytes > zipMaxTotalSizeBytes) {
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console.log(`Finished zip task for album: ${identifier} (size exceeds).`)
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const json = {
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success: false,
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description: `Total size of all files in the album exceeds the configured limit (${zipMaxTotalSize}).`
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}
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albumsController.zipEmitters.get(identifier).emit('done', null, null, json)
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return res.json(json)
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}
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}
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const zipPath = path.join(zipsDir, `${album.identifier}.zip`)
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const archive = new Zip()
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let iteration = 0
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for (const file of files)
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fs.readFile(path.join(uploadsDir, file.name), (error, data) => {
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if (error)
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console.error(error)
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else
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archive.file(file.name, data)
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iteration++
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if (iteration === files.length)
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archive
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.generateNodeStream(zipOptions)
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.pipe(fs.createWriteStream(zipPath))
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.on('finish', async () => {
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console.log(`Finished zip task for album: ${identifier} (success).`)
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await db.table('albums')
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.where('id', album.id)
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.update('zipGeneratedAt', Math.floor(Date.now() / 1000))
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const filePath = path.join(zipsDir, `${identifier}.zip`)
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const fileName = `${album.name}.zip`
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albumsController.zipEmitters.get(identifier).emit('done', filePath, fileName)
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utils.invalidateStatsCache('albums')
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return download(filePath, fileName)
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})
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})
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}
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albumsController.addFiles = async (req, res, next) => {
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const user = await utils.authorize(req, res)
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if (!user) return
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const ids = req.body.ids
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if (!ids || !ids.length)
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return res.json({ success: false, description: 'No files specified.' })
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let albumid = req.body.albumid
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if (typeof albumid !== 'number') albumid = parseInt(albumid)
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if (isNaN(albumid) || (albumid < 0)) albumid = null
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const albumids = []
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if (albumid !== null) {
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const album = await db.table('albums')
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.where('id', albumid)
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.where(function () {
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if (user.username !== 'root')
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this.where('userid', user.id)
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})
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.first()
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if (!album)
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return res.json({ success: false, description: 'Album doesn\'t exist or it doesn\'t belong to the user.' })
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albumids.push(albumid)
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}
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const files = await db.table('files')
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.whereIn('id', ids)
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.where(function () {
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if (user.username !== 'root')
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this.where('userid', user.id)
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})
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const failed = ids.filter(id => !files.find(file => file.id === id))
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const updateDb = await db.table('files')
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.whereIn('id', files.map(file => file.id))
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.update('albumid', albumid)
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.catch(console.error)
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if (!updateDb)
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return res.json({
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success: false,
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description: `Could not ${albumid === null ? 'add' : 'remove'} any files ${albumid === null ? 'to' : 'from'} the album.`
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})
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files.forEach(file => {
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if (file.albumid && !albumids.includes(file.albumid))
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albumids.push(file.albumid)
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})
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await db.table('albums')
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.whereIn('id', albumids)
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.update('editedAt', Math.floor(Date.now() / 1000))
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.catch(console.error)
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return res.json({ success: true, failed })
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}
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module.exports = albumsController
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