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'use strict'
const config = require('config')
const crypto = require('crypto')
const express = require('express')
const ffmpeg = require('fluent-ffmpeg')
const multer = require('multer')
const logger = require('../../../helpers/logger')
const friends = require('../../../lib/friends')
const middleware = require('../../../middlewares')
const oAuth2 = require('../../../middlewares/oauth2')
const cacheMiddleware = middleware.cache
const reqValidator = middleware.reqValidators.videos
const Videos = require('../../../models/videos') // model
const videos = require('../../../lib/videos')
const webtorrent = require('../../../lib/webtorrent')
const router = express.Router()
const uploads = config.get('storage.uploads')
// multer configuration
const storage = multer.diskStorage({
destination: function (req, file, cb) {
cb(null, uploads)
},
filename: function (req, file, cb) {
let extension = ''
if (file.mimetype === 'video/webm') extension = 'webm'
else if (file.mimetype === 'video/mp4') extension = 'mp4'
else if (file.mimetype === 'video/ogg') extension = 'ogv'
crypto.pseudoRandomBytes(16, function (err, raw) {
const fieldname = err ? undefined : raw.toString('hex')
cb(null, fieldname + '.' + extension)
})
}
})
const reqFiles = multer({ storage: storage }).fields([{ name: 'videofile', maxCount: 1 }])
router.get('/', cacheMiddleware.cache(false), listVideos)
router.post('/', oAuth2.authenticate, reqFiles, reqValidator.videosAdd, cacheMiddleware.cache(false), addVideo)
router.get('/:id', reqValidator.videosGet, cacheMiddleware.cache(false), getVideos)
router.delete('/:id', oAuth2.authenticate, reqValidator.videosRemove, cacheMiddleware.cache(false), removeVideo)
router.get('/search/:name', reqValidator.videosSearch, cacheMiddleware.cache(false), searchVideos)
// ---------------------------------------------------------------------------
module.exports = router
// ---------------------------------------------------------------------------
function addVideo (req, res, next) {
const video_file = req.files.videofile[0]
const video_infos = req.body
videos.seed(video_file.path, function (err, torrent) {
if (err) {
logger.error('Cannot seed this video.')
return next(err)
}
ffmpeg.ffprobe(video_file.path, function (err, metadata) {
if (err) {
// TODO: unseed the video
logger.error('Cannot retrieve metadata of the file')
return next(err)
}
const duration = Math.floor(metadata.format.duration)
const video_data = {
name: video_infos.name,
namePath: video_file.filename,
description: video_infos.description,
magnetUri: torrent.magnetURI,
author: res.locals.oauth.token.user.username,
duration: duration
}
Videos.add(video_data, function (err) {
if (err) {
// TODO unseed the video
logger.error('Cannot insert this video in the database.')
return next(err)
}
// Now we'll add the video's meta data to our friends
friends.addVideoToFriends(video_data)
// TODO : include Location of the new video -> 201
res.type('json').status(204).end()
})
})
})
}
function getVideos (req, res, next) {
Videos.get(req.params.id, function (err, video_obj) {
if (err) return next(err)
const state = videos.getVideoState(video_obj)
if (state.exist === false) {
return res.type('json').status(204).end()
}
res.json(getFormatedVideo(video_obj))
})
}
function listVideos (req, res, next) {
Videos.list(function (err, videos_list) {
if (err) return next(err)
res.json(getFormatedVideos(videos_list))
})
}
function removeVideo (req, res, next) {
const video_id = req.params.id
Videos.get(video_id, function (err, video) {
if (err) return next(err)
removeTorrent(video.magnetUri, function () {
Videos.removeOwned(req.params.id, function (err) {
if (err) return next(err)
const params = {
name: video.name,
magnetUri: video.magnetUri
}
friends.removeVideoToFriends(params)
res.type('json').status(204).end()
})
})
})
}
function searchVideos (req, res, next) {
Videos.search(req.params.name, function (err, videos_list) {
if (err) return next(err)
res.json(getFormatedVideos(videos_list))
})
}
// ---------------------------------------------------------------------------
function getFormatedVideo (video_obj) {
const formated_video = {
id: video_obj._id,
name: video_obj.name,
description: video_obj.description,
podUrl: video_obj.podUrl,
isLocal: videos.getVideoState(video_obj).owned,
magnetUri: video_obj.magnetUri,
author: video_obj.author,
duration: video_obj.duration
}
return formated_video
}
function getFormatedVideos (videos_obj) {
const formated_videos = []
videos_obj.forEach(function (video_obj) {
formated_videos.push(getFormatedVideo(video_obj))
})
return formated_videos
}
// Maybe the torrent is not seeded, but we catch the error to don't stop the removing process
function removeTorrent (magnetUri, callback) {
try {
webtorrent.remove(magnetUri, callback)
} catch (err) {
logger.warn('Cannot remove the torrent from WebTorrent', { err: err })
return callback(null)
}
}
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