deemixer/server/src/app.ts
2022-03-08 16:07:20 +01:00

383 lines
12 KiB
TypeScript

import fs from 'fs'
import { sep } from 'path'
import { v4 as uuidv4 } from 'uuid'
// @ts-expect-error
import deemix from 'deemix'
import got from 'got'
import { Settings, Listener } from './types'
import { NotLoggedIn } from './helpers/errors'
import { GUI_PACKAGE } from './helpers/paths'
import { logger } from './helpers/logger'
// Types
const Downloader = deemix.downloader.Downloader
const { Single, Collection, Convertable } = deemix.types.downloadObjects
// Functions
export const getAccessToken = deemix.utils.deezer.getAccessToken
export const getArlFromAccessToken = deemix.utils.deezer.getArlFromAccessToken
// Constants
export const configFolder: string = deemix.utils.localpaths.getConfigFolder()
export const defaultSettings: Settings = deemix.settings.DEFAULTS
export const deemixVersion = require('../node_modules/deemix/package.json').version
const currentVersionTemp = JSON.parse(String(fs.readFileSync(GUI_PACKAGE))).version
export const currentVersion = currentVersionTemp === '0.0.0' ? 'continuous' : currentVersionTemp
export const sessionDZ: any = {}
export class DeemixApp {
queueOrder: string[]
queue: any
currentJob: any
deezerAvailable: string | null
latestVersion: string | null
plugins: any
settings: any
listener: Listener
constructor(listener: Listener) {
this.settings = deemix.settings.load(configFolder)
this.queueOrder = []
this.queue = {}
this.currentJob = null
this.plugins = {
// eslint-disable-next-line new-cap
spotify: new deemix.plugins.spotify()
}
this.deezerAvailable = null
this.latestVersion = null
this.listener = listener
this.plugins.spotify.setup()
this.restoreQueueFromDisk()
}
async isDeezerAvailable(): Promise<string> {
if (this.deezerAvailable === null) {
let response
try {
response = await got.get('https://www.deezer.com/', {
headers: { Cookie: 'dz_lang=en; Domain=deezer.com; Path=/; Secure; hostOnly=false;' },
https: {
rejectUnauthorized: false
},
retry: 5
})
} catch (e) {
logger.error(e)
this.deezerAvailable = 'no-network'
return this.deezerAvailable
}
const title = (response.body.match(/<title[^>]*>([^<]+)<\/title>/)![1] || '').trim()
this.deezerAvailable = title !== 'Deezer will soon be available in your country.' ? 'yes' : 'no'
}
return this.deezerAvailable
}
async getLatestVersion(force = false): Promise<string | null> {
if ((this.latestVersion === null || force) && !this.settings.disableUpdateCheck) {
let response
try {
response = await got.get('https://deemix.app/gui/latest', {
https: {
rejectUnauthorized: false
}
})
} catch (e) {
logger.error(e)
this.latestVersion = 'NotFound'
return this.latestVersion
}
this.latestVersion = response.body.trim()
}
return this.latestVersion
}
parseVersion(version: string | null): any {
if (version === null || version === 'continuous' || version === 'NotFound') return null
try {
const matchResult = version.match(/(\d+)\.(\d+)\.(\d+)-r(\d+)\.(.+)/) || []
return {
year: parseInt(matchResult[1]),
month: parseInt(matchResult[2]),
day: parseInt(matchResult[3]),
revision: parseInt(matchResult[4]),
commit: matchResult[5] || ''
}
} catch (e) {
logger.error(e)
return null
}
}
isUpdateAvailable(): boolean {
const currentVersionObj: any = this.parseVersion(currentVersion)
const latestVersionObj: any = this.parseVersion(this.latestVersion)
if (currentVersionObj === null || latestVersionObj === null) return false
if (latestVersionObj.year > currentVersionObj.year) return true
if (latestVersionObj.month > currentVersionObj.month) return true
if (latestVersionObj.day > currentVersionObj.day) return true
if (latestVersionObj.revision > currentVersionObj.revision) return true
if (
latestVersionObj.revision === currentVersionObj.revision &&
latestVersionObj.commit !== currentVersionObj.commit
)
return true
return false
}
getSettings(): any {
return { settings: this.settings, defaultSettings, spotifySettings: this.plugins.spotify.getSettings() }
}
saveSettings(newSettings: any, newSpotifySettings: any) {
newSettings.executeCommand = this.settings.executeCommand
deemix.settings.save(newSettings, configFolder)
this.settings = newSettings
this.plugins.spotify.saveSettings(newSpotifySettings)
}
getQueue() {
const result: any = {
queue: this.queue,
queueOrder: this.queueOrder
}
if (this.currentJob && this.currentJob !== true) {
result.current = this.currentJob.downloadObject.getSlimmedDict()
}
return result
}
async addToQueue(dz: any, url: string[], bitrate: number) {
if (!dz.logged_in) throw new NotLoggedIn()
let downloadObjs: any[] = []
const downloadErrors: any[] = []
let link: string = ''
const requestUUID = uuidv4()
if (url.length > 1) {
this.listener.send('startGeneratingItems', { uuid: requestUUID, total: url.length })
}
for (let i = 0; i < url.length; i++) {
link = url[i]
logger.info(`Adding ${link} to queue`)
let downloadObj
try {
downloadObj = await deemix.generateDownloadObject(dz, link, bitrate, this.plugins, this.listener)
} catch (e) {
downloadErrors.push(e)
}
if (Array.isArray(downloadObj)) {
downloadObjs = downloadObjs.concat(downloadObj)
} else if (downloadObj) downloadObjs.push(downloadObj)
}
if (downloadErrors.length) {
downloadErrors.forEach((e: any) => {
if (!e.errid) logger.error(e)
this.listener.send('queueError', { link: e.link, error: e.message, errid: e.errid })
})
}
if (url.length > 1) {
this.listener.send('finishGeneratingItems', { uuid: requestUUID, total: downloadObjs.length })
}
const slimmedObjects: any[] = []
downloadObjs.forEach((downloadObj: any) => {
// Check if element is already in queue
if (Object.keys(this.queue).includes(downloadObj.uuid)) {
this.listener.send('alreadyInQueue', downloadObj.getEssentialDict())
return
}
// Save queue status when adding something to the queue
if (!fs.existsSync(configFolder + 'queue')) fs.mkdirSync(configFolder + 'queue')
this.queueOrder.push(downloadObj.uuid)
fs.writeFileSync(configFolder + `queue${sep}order.json`, JSON.stringify(this.queueOrder))
this.queue[downloadObj.uuid] = downloadObj.getEssentialDict()
this.queue[downloadObj.uuid].status = 'inQueue'
const savedObject = downloadObj.toDict()
savedObject.status = 'inQueue'
fs.writeFileSync(configFolder + `queue${sep}${downloadObj.uuid}.json`, JSON.stringify(savedObject))
slimmedObjects.push(downloadObj.getSlimmedDict())
})
if (slimmedObjects.length === 1) this.listener.send('addedToQueue', slimmedObjects[0])
else this.listener.send('addedToQueue', slimmedObjects)
this.startQueue(dz)
return slimmedObjects
}
async startQueue(dz: any): Promise<any> {
do {
if (this.currentJob !== null || this.queueOrder.length === 0) {
// Should not start another download
return null
}
this.currentJob = true // lock currentJob
let currentUUID: string
do {
currentUUID = this.queueOrder.shift() || ''
} while (this.queue[currentUUID] === undefined && this.queueOrder.length)
if (this.queue[currentUUID] === undefined) {
fs.writeFileSync(configFolder + `queue${sep}order.json`, JSON.stringify(this.queueOrder))
this.currentJob = null
return null
}
this.queue[currentUUID].status = 'downloading'
const currentItem: any = JSON.parse(fs.readFileSync(configFolder + `queue${sep}${currentUUID}.json`).toString())
let downloadObject: any
switch (currentItem.__type__) {
case 'Single':
downloadObject = new Single(currentItem)
break
case 'Collection':
downloadObject = new Collection(currentItem)
break
case 'Convertable':
downloadObject = new Convertable(currentItem)
downloadObject = await this.plugins[downloadObject.plugin].convert(
dz,
downloadObject,
this.settings,
this.listener
)
fs.writeFileSync(
configFolder + `queue${sep}${downloadObject.uuid}.json`,
JSON.stringify({ ...downloadObject.toDict(), status: 'inQueue' })
)
break
}
this.currentJob = new Downloader(dz, downloadObject, this.settings, this.listener)
this.listener.send('startDownload', currentUUID)
await this.currentJob.start()
if (!downloadObject.isCanceled) {
// Set status
if (downloadObject.failed === downloadObject.size && downloadObject.size !== 0) {
this.queue[currentUUID].status = 'failed'
} else if (downloadObject.failed > 0) {
this.queue[currentUUID].status = 'withErrors'
} else {
this.queue[currentUUID].status = 'completed'
}
const savedObject = downloadObject.getSlimmedDict()
savedObject.status = this.queue[currentUUID].status
// Save queue status
this.queue[currentUUID] = savedObject
fs.writeFileSync(configFolder + `queue${sep}${currentUUID}.json`, JSON.stringify(savedObject))
}
logger.info(this.queueOrder)
fs.writeFileSync(configFolder + `queue${sep}order.json`, JSON.stringify(this.queueOrder))
this.currentJob = null
} while (this.queueOrder.length)
}
cancelDownload(uuid: string) {
if (Object.keys(this.queue).includes(uuid)) {
switch (this.queue[uuid].status) {
case 'downloading':
this.currentJob.downloadObject.isCanceled = true
this.listener.send('cancellingCurrentItem', uuid)
break
case 'inQueue':
this.queueOrder.splice(this.queueOrder.indexOf(uuid), 1)
fs.writeFileSync(configFolder + `queue${sep}order.json`, JSON.stringify(this.queueOrder))
// break
// eslint-disable-next-line no-fallthrough
default:
// This gets called even in the 'inQueue' case. Is this the expected behaviour? If no, de-comment the break
this.listener.send('removedFromQueue', uuid)
break
}
fs.unlinkSync(configFolder + `queue${sep}${uuid}.json`)
delete this.queue[uuid]
}
}
cancelAllDownloads() {
this.queueOrder = []
let currentItem: string | null = null
Object.values(this.queue).forEach((downloadObject: any) => {
if (downloadObject.status === 'downloading') {
this.currentJob.downloadObject.isCanceled = true
this.listener.send('cancellingCurrentItem', downloadObject.uuid)
currentItem = downloadObject.uuid
}
fs.unlinkSync(configFolder + `queue${sep}${downloadObject.uuid}.json`)
delete this.queue[downloadObject.uuid]
})
fs.writeFileSync(configFolder + `queue${sep}order.json`, JSON.stringify(this.queueOrder))
this.listener.send('removedAllDownloads', currentItem)
}
clearCompletedDownloads() {
Object.values(this.queue).forEach((downloadObject: any) => {
if (downloadObject.status === 'completed') {
fs.unlinkSync(configFolder + `queue${sep}${downloadObject.uuid}.json`)
delete this.queue[downloadObject.uuid]
}
})
this.listener.send('removedFinishedDownloads')
}
restoreQueueFromDisk() {
if (!fs.existsSync(configFolder + 'queue')) fs.mkdirSync(configFolder + 'queue')
const allItems: string[] = fs.readdirSync(configFolder + 'queue')
allItems.forEach((filename: string) => {
if (filename === 'order.json') {
try {
this.queueOrder = JSON.parse(fs.readFileSync(configFolder + `queue${sep}order.json`).toString())
} catch {
this.queueOrder = []
fs.writeFileSync(configFolder + `queue${sep}order.json`, JSON.stringify(this.queueOrder))
}
} else {
let currentItem: any
try {
currentItem = JSON.parse(fs.readFileSync(configFolder + `queue${sep}${filename}`).toString())
} catch {
fs.unlinkSync(configFolder + `queue${sep}${filename}`)
return
}
if (currentItem.status === 'inQueue') {
let downloadObject: any
switch (currentItem.__type__) {
case 'Single':
downloadObject = new Single(currentItem)
break
case 'Collection':
downloadObject = new Collection(currentItem)
break
case 'Convertable':
downloadObject = new Convertable(currentItem)
break
}
this.queue[downloadObject.uuid] = downloadObject.getEssentialDict()
this.queue[downloadObject.uuid].status = 'inQueue'
} else {
this.queue[currentItem.uuid] = currentItem
}
}
})
}
}