2018-10-05 10:36:57 +00:00
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import path from 'path'
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import sqlite from 'sqlite'
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import Promise from 'bluebird'
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import express from 'express'
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2019-01-25 15:00:35 +00:00
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import https from 'https'
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import ffmpeg from 'fluent-ffmpeg'
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import lastfm from './lastfm'
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2018-10-05 10:36:57 +00:00
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require('express-async-errors')
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2018-10-18 15:34:47 +00:00
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const values = require(path.join(process.cwd(), 'values.json'))
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2018-10-05 10:36:57 +00:00
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const tracksPerPage = 100
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const dbPromise = Promise.resolve()
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2018-10-18 15:34:47 +00:00
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.then(() => sqlite.open(path.join(process.cwd(), values.database), { Promise, cache: true }))
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2018-10-05 10:36:57 +00:00
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.then(db => db.migrate())
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const app = express()
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const port = process.env.PORT || 3000
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const router = express.Router()
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2019-01-23 18:53:54 +00:00
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const sortfields = ['id', 'track', 'artist', 'title', 'album', 'year', 'file']
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2019-01-19 16:27:12 +00:00
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const srchcategories = ['title', 'artist', 'album']
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2018-10-05 10:36:57 +00:00
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router.get('/tracks', async (req, res) => {
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let page = parseInt(req.query.page) || 1
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if (isNaN(page)) {
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page = 1
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}
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2019-01-19 16:27:12 +00:00
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let sort = req.query.sort
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if (!sort || sortfields.indexOf(sort.toLowerCase()) === -1) {
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sort = 'artist'
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}
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let sortdir = req.query.sortdir
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if (!sortdir || (sortdir !== 'desc' && sortdir !== 'asc')) {
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sortdir = 'asc'
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}
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2018-10-05 10:36:57 +00:00
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let db = await dbPromise
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let count = (await db.get('SELECT COUNT(*) FROM Track'))['COUNT(*)']
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let pageCount = Math.ceil(count / tracksPerPage)
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if (page > pageCount) page = pageCount
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let offset = (page - 1) * tracksPerPage
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2019-01-19 16:27:12 +00:00
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let tracks = await db.all(`SELECT * FROM Track ORDER BY ${sort} ${sortdir.toUpperCase()} LIMIT ? OFFSET ?`, tracksPerPage, offset)
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2018-10-05 10:36:57 +00:00
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for (let i in tracks) {
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delete tracks[i].file
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}
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res.jsonp({
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page, count, pageCount, tracks
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})
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})
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router.get('/tracks/search', async (req, res) => {
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2018-10-09 15:15:26 +00:00
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let query = req.query.q
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2019-01-25 15:00:35 +00:00
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let streamable = (req.query.streamable === '1')
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2018-10-05 14:10:05 +00:00
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let qr = ''
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let exact = false
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if (query.indexOf(':') !== -1) {
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let ctr = query.split(':')
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if (srchcategories.indexOf(ctr[0]) !== -1) {
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qr = `ifnull(${ctr[0]}, '')`
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query = query.substring(ctr[0].length + 1)
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}
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}
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if (qr === '') {
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for (let c in srchcategories) {
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let cat = srchcategories[c]
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if (parseInt(c) !== 0) qr += ' || '
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qr += `ifnull(${cat}, '')`
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}
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}
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if (query.indexOf('=') !== -1 && query.indexOf('\\=') === -1) {
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query = query.replace('=', '')
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exact = true
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}
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2019-01-25 15:00:35 +00:00
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let original = String(query)
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2018-10-05 14:10:05 +00:00
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if (!exact) query = `%${query}%`
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2018-10-05 10:36:57 +00:00
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2019-01-19 16:27:12 +00:00
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let sort = req.query.sort
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if (!sort || sortfields.indexOf(sort.toLowerCase()) === -1) {
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sort = 'artist'
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}
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let sortdir = req.query.sortdir
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if (!sortdir || (sortdir !== 'desc' && sortdir !== 'asc')) {
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sortdir = 'asc'
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}
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2018-10-09 15:15:26 +00:00
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// Paging
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let page = parseInt(req.query.page) || 1
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if (isNaN(page)) {
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page = 1
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}
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2018-10-05 10:36:57 +00:00
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let db = await dbPromise
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2018-10-09 15:15:26 +00:00
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let count = (await db.get(`SELECT COUNT(*) FROM Track WHERE ${qr} LIKE ?`, query))['COUNT(*)']
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let pageCount = Math.ceil(count / tracksPerPage)
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if (page > pageCount) page = pageCount
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let offset = (page - 1) * tracksPerPage
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2019-01-19 16:27:12 +00:00
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let tracks = await db.all(`SELECT * FROM Track WHERE ${qr} LIKE ? ORDER BY ${sort} ${sortdir.toUpperCase()} LIMIT ? OFFSET ?`,
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query, tracksPerPage, offset)
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2018-10-05 10:36:57 +00:00
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2019-01-25 15:00:35 +00:00
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let llimit = tracksPerPage - count
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if (streamable && page === pageCount && llimit > 1) {
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if (llimit < 10) llimit = 10
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try {
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let lfm = await lastfm.search(original, llimit)
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if (lfm && lfm.length) {
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tracks = tracks.concat(lfm)
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}
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} catch (e) {}
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}
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2018-10-05 10:36:57 +00:00
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for (let i in tracks) {
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delete tracks[i].file
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}
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2018-10-09 15:15:26 +00:00
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res.jsonp({
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page, count, pageCount, tracks
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})
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2018-10-05 10:36:57 +00:00
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})
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router.get('/track/:id', async (req, res, next) => {
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let id = req.params.id
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2019-01-25 15:00:35 +00:00
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2018-10-05 10:36:57 +00:00
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let db = await dbPromise
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let track = await db.get('SELECT * FROM Track WHERE id = ?', id)
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2019-01-25 15:00:35 +00:00
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if (!track) {
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track = await lastfm.getTrackMetaReal(id)
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if (!track) return next(new Error('404 file not found'))
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}
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2018-10-05 10:36:57 +00:00
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delete track.file
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res.jsonp(track)
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})
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router.get('/playlists', async (req, res, next) => {
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let db = await dbPromise
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let playlists = await db.all('SELECT * FROM Playlist')
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2018-10-10 10:02:56 +00:00
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2018-10-05 10:36:57 +00:00
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res.jsonp(playlists)
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})
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router.get('/playlist/:id', async (req, res, next) => {
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let id = req.params.id
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let db = await dbPromise
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let playlist = await db.get('SELECT title FROM Playlist WHERE id = ?', id)
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if (!playlist) return next(new Error('404 file not found'))
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let tracks = await db.all('SELECT trackId FROM PlaylistEntry WHERE playlistId = ?', id)
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playlist.tracks = tracks
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2018-10-10 10:02:56 +00:00
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2018-10-05 10:36:57 +00:00
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res.jsonp(playlist)
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})
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router.get('/serve/by-id/:id', async (req, res, next) => {
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let id = req.params.id
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2019-01-25 15:00:35 +00:00
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let dl = (req.query.dl === '1')
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2018-10-05 10:36:57 +00:00
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let db = await dbPromise
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let track = await db.get('SELECT file FROM Track WHERE id = ?', id)
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2019-01-25 15:00:35 +00:00
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if (!track) {
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track = await lastfm.getTrackMetaReal(id)
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if (!track) return next(new Error('404 file not found'))
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return ffmpeg(track.file)
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.audioCodec('libmp3lame')
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.format('mp3')
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.on('error', (e) => console.error(e))
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.pipe(res, {end: true})
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}
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2018-10-05 10:36:57 +00:00
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2018-10-10 10:02:56 +00:00
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let fpath = path.resolve(track.file)
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2018-10-05 10:36:57 +00:00
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res.set('Cache-Control', 'public, max-age=31557600')
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2019-01-25 15:00:35 +00:00
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if (dl) return res.download(fpath)
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2018-10-10 10:02:56 +00:00
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2018-10-11 08:41:26 +00:00
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res.redirect('/file/track' + fpath.substring(values.directory.length))
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2018-10-05 10:36:57 +00:00
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})
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router.use((err, req, res, next) => {
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console.error(err)
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res.status(404).jsonp({error: 404})
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})
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app.use('/api', router)
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2018-10-11 08:41:26 +00:00
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app.use('/file/track', express.static(path.resolve(values.directory)))
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2018-10-18 15:34:47 +00:00
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app.use('/', express.static(path.join(process.cwd(), 'public')))
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2018-10-05 10:36:57 +00:00
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2019-01-15 14:21:33 +00:00
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const host = process.env.NODE_ENV === 'development' ? '0.0.0.0' : '127.0.0.1'
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app.listen(port, host, function () {
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2018-10-05 10:36:57 +00:00
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console.log(`app running on port ${port}`)
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})
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