use ffprobe for tags

package.json

@@ -11,12 +11,14 @@
   },
   "private": true,
   "dependencies": {
+    "babel-plugin-transform-runtime": "^6.23.0",
     "bluebird": "^3.5.2",
     "express": "^4.16.3",
     "express-async-errors": "^3.0.0",
     "fs-extra": "^7.0.0",
+    "socket.io": "^2.1.1",
     "sqlite": "^3.0.0",
-    "babel-plugin-transform-runtime": "^6.23.0"
+    "sqlite3": "^4.0.3"
   },
   "devDependencies": {
     "babel-core": "^6.26.3",

src/common/async.js

@@ -42,7 +42,7 @@ async function insertDB (db, track) {
   }
 
   await db.run('INSERT INTO Track VALUES (NULL,?,?,?,?,?,?,?,?)',
-    [track.title, track.artist, track.file, track.album || null, track.genre || null, track.track || null,
+    [track.title, track.artist, track.file, track.album || '', track.genre || null, track.track || null,
       track.year || null, Math.floor(track.duration)])
 
   return track

src/common/download.js

@@ -82,29 +82,31 @@ function fetchVideo (data) {
 }
 
 async function getInfos (file) {
-  let id3 = await asn.promiseExec(`id3 "${file}"`)
-  let prds = id3.stdout.split('\n')
-  let data = {}
+  let formatData = await asn.promiseExec(`ffprobe -i "${file}" -show_entries format -v quiet -of json`)
 
-  // Get id3 tags
-  for (let i in prds) {
-    let line = prds[i]
-    let parts = line.split(': ')
-    if (parts.length) {
-      let tagtype = parts[0].toLowerCase()
-      let tagdata = line.substring(parts[0].length + 2)
+  let parsed = JSON.parse(formatData.stdout)
+  if (!parsed || !parsed.format) throw new Error('Failed to parse metadata!')
+  parsed = parsed.format
   
-      if (tagtype === '') continue
-      if (tagtype === 'metadata' && tagdata === 'none found') throw new Error(`No metadata for file "${file}"!`)
+  let data = {
+    duration: parseFloat(parsed.duration)
+  }
+
+  if (parsed.tags) {
+    for (let k in parsed.tags) {
+      let tagtype = k.toLowerCase()
+      let value = parsed.tags[k]
+
+      if (tagtype === 'date') tagtype = 'year'
       if (tagtype === 'track' || tagtype === 'year') {
-        if (tagdata.indexOf('/') !== -1) {
-          tagdata = tagdata.split('/')[0]
+        if (value.indexOf('/') !== -1) {
+          value = value.split('/')[0]
         }
 
-        tagdata = parseInt(tagdata)
+        value = parseInt(value)
       }
 
-      data[tagtype] = tagdata
+      data[tagtype] = value
     }
   }
 
@@ -113,11 +115,6 @@ async function getInfos (file) {
     data.title = parsed.name
   }
 
-  // Get track length
-  let len = await asn.promiseExec(`ffprobe -i "${file}" -show_entries format=duration -v quiet -of csv="p=0"`)
-  len = parseFloat(len.stdout)
-  data.duration = len
-
   return data
 }
 

src/dbpopulate.js

@@ -51,11 +51,8 @@ async function interactive (fpath, db) {
   return track
 }
 
-async function run () {
-  let db = await dbPromise
-
-  if (process.argv[2] != null) {
-    let filePath = path.resolve(process.argv[2])
+async function handlePassed (db, fpath) {
+  let filePath = path.resolve(fpath)
   let trackinf
 
   try {
@@ -65,14 +62,27 @@ async function run () {
   }
 
   if (!trackinf) {
-      console.error('Nothing to do.')
-      return
+    throw new Error('Nothing to do.')
   }
 
   let ins = await asn.insertDB(db, trackinf)
   if (!ins) {
-      console.error('A track of this description already exists in the database.')
-      return
+    throw new Error('A track of this description already exists in the database.')
+  }
+}
+
+async function run () {
+  let db = await dbPromise
+
+  if (process.argv[2] != null) {
+    for (let i = 2; i < process.argv.length; i++) {
+      let f = process.argv[i]
+      console.log('=> Passing', f)
+      try {
+        await handlePassed(db, f)
+      } catch (e) {
+        console.error('==>', e.message)
+      }
     }
 
     console.log('=> Done.')

src/server.js

@@ -2,6 +2,7 @@ import path from 'path'
 import sqlite from 'sqlite'
 import Promise from 'bluebird'
 import express from 'express'
+import sockets from './server/sockets'
 
 require('express-async-errors')
 
@@ -17,6 +18,9 @@ const port = process.env.PORT || 3000
 
 const router = express.Router()
 
+const http = require('http').Server(app)
+const io = require('socket.io')(http)
+
 router.get('/tracks', async (req, res) => {
   let page = parseInt(req.query.page) || 1
   if (isNaN(page)) {
@@ -152,6 +156,7 @@ app.use('/api', router)
 app.use('/file/track', express.static(path.resolve(values.directory)))
 app.use('/', express.static(path.join(process.cwd(), 'public')))
 
-app.listen(port, '127.0.0.1', function () {
+http.listen(port, '127.0.0.1', function () {
+  sockets.start(io)
   console.log(`app running on port ${port}`)
 })

src/server/sockets.js

@@ -0,0 +1,141 @@
+
+let data = {
+  clients: {},
+
+  // Key: Controller
+  // Value: Controlee
+  // Music is played on Value's device.
+  control: {}
+}
+
+function getSocketByDevice (devid) {
+  for (let id in data.clients) {
+    let sock = data.clients[i]
+    if (sock.device && sock.device === devid) {
+      return sock
+    }
+  }
+
+  return null
+}
+
+function getControlling (sockid) {
+  for (let id in data.control) {
+    let cl = data.control[id]
+    if (cl === sockid) return id
+  }
+
+  return null
+}
+
+function start (io) {
+  io.on('connection', function (socket) {
+    let sockid = socket.id
+
+    socket.on('auth', function (device) {
+      if (getSocketByDevice(device) != null) {
+        return socket.emit('cerr', {error: 'devexists', code: 0})
+      }
+
+      socket.device = device
+      data.clients[sockid] = socket
+    })
+
+    socket.on('req:devs', function () {
+      let devices = []
+
+      for (let i in data.clients) {
+        let cl = data.clients[i]
+        if (cl.device === socket.device) continue
+        devices.push(devices)
+      }
+
+      socket.emit('res:devs', devices)
+    })
+
+    // Controller wants to take control of Controlee
+    socket.on('ctrl:connect', function (ctrlee) {
+      let dev = getSocketByDevice(ctrlee)
+      if (!dev) return socket.emit('cerr', {error: 'devnull', code: 1})
+
+      // Device is already controlling/being controlled
+      if (data.control[sockid] || getControlling(dev.id)) return socket.emit('cerr', {error: 'devctrl', code: 2})
+
+      dev.emit('ctrl:connect', { device: socket.device })
+      socket.emit('targ:success', { device: ctrlee })
+    })
+
+    // Disconnect
+    socket.on('ctrl:disconnect', function (ctrlee) {
+      let id, ctrl
+      if (getControlling(sockid)) {
+        // If this is a controlee, disconnect from controller
+        id = getControlling(sockid)
+        ctrl = data.clients[id]
+
+        delete data.control[id]
+      } else if (data.control[sockid]) {
+        // If this is a controller, disconnect from controlee
+        id = data.control[sockid]
+        ctrl = data.clients[id]
+
+        delete data.control[sockid]
+      }
+
+      if (!ctrl) return
+
+      ctrl.emit('targ:disconnect', {})
+    })
+
+    let directpass = ['track', 'pause', 'seek', 'volume', 'mute', 'queue', 'req:queue', 'res:queue']
+    for (let i in directpass) {
+      let syn = 'sync:' + directpass[i]
+
+      // Set pause/play state
+      // Sent from controlee to controller
+      socket.on(syn, function (data) {
+        let ctrl
+
+        if (getControlling(sockid)) {
+          // If this is a controlee, send to controller
+          ctrl = data.clients[getControlling(sockid)]
+        } else if (data.control[sockid]) {
+          // If this is a controller, send to controlee
+          ctrl = data.clients[data.control[sockid]]
+        }
+
+        ctrl && ctrl.emit('set:' + directpass[i], data)
+      })
+    }
+
+    // Synchronize timestamp
+    socket.on('sync:time', function (data) {
+      if (!getControlling(sockid)) return
+      let ctrl = data.clients[getControlling(sockid)]
+      ctrl && ctrl.emit('sync:time', data)
+    })
+
+    socket.on('disconnect', function () {
+      if (data.clients[sockid]) {
+        let dev = data.clients[sockid]
+
+        // Controller loses connection
+        // Emit to controlee
+        if (data.control[sockid]) {
+          let clt = data.clients[sockid]
+          clt && clt.emit('ctrl:disconnect', {})
+
+        // Controlee loses connection
+        // Emit to controller
+        } else if (getControlling(sockid)) {
+          let clt = data.clients[getControlling(sockid)]
+          clt && clt.emit('targ:disconnect', {})
+        }
+
+        delete data.clients[sockid]
+      }
+    })
+  })
+}
+
+module.exports = { start }