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'use strict'
const express = require('express')
const fs = require('fs')
const multer = require('multer')
const path = require('path')
const waterfall = require('async/waterfall')
const constants = require('../../initializers/constants')
const db = require('../../initializers/database')
const logger = require('../../helpers/logger')
const friends = require('../../lib/friends')
const middlewares = require('../../middlewares')
const admin = middlewares.admin
const oAuth = middlewares.oauth
const pagination = middlewares.pagination
const validators = middlewares.validators
const validatorsPagination = validators.pagination
const validatorsSort = validators.sort
const validatorsVideos = validators.videos
const search = middlewares.search
const sort = middlewares.sort
const utils = require('../../helpers/utils')
const router = express.Router()
// multer configuration
const storage = multer.diskStorage({
destination: function (req, file, cb) {
cb(null, constants.CONFIG.STORAGE.VIDEOS_DIR)
},
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'
utils.generateRandomString(16, function (err, randomString) {
const fieldname = err ? undefined : randomString
cb(null, fieldname + '.' + extension)
})
}
})
const reqFiles = multer({ storage: storage }).fields([{ name: 'videofile', maxCount: 1 }])
router.get('/abuse',
oAuth.authenticate,
admin.ensureIsAdmin,
validatorsPagination.pagination,
validatorsSort.videoAbusesSort,
sort.setVideoAbusesSort,
pagination.setPagination,
listVideoAbuses
)
router.post('/:id/abuse',
oAuth.authenticate,
validatorsVideos.videoAbuseReport,
reportVideoAbuseRetryWrapper
)
router.get('/',
validatorsPagination.pagination,
validatorsSort.videosSort,
sort.setVideosSort,
pagination.setPagination,
listVideos
)
router.put('/:id',
oAuth.authenticate,
reqFiles,
validatorsVideos.videosUpdate,
updateVideoRetryWrapper
)
router.post('/',
oAuth.authenticate,
reqFiles,
validatorsVideos.videosAdd,
addVideoRetryWrapper
)
router.get('/:id',
validatorsVideos.videosGet,
getVideo
)
router.delete('/:id',
oAuth.authenticate,
validatorsVideos.videosRemove,
removeVideo
)
router.get('/search/:value',
validatorsVideos.videosSearch,
validatorsPagination.pagination,
validatorsSort.videosSort,
sort.setVideosSort,
pagination.setPagination,
search.setVideosSearch,
searchVideos
)
// ---------------------------------------------------------------------------
module.exports = router
// ---------------------------------------------------------------------------
// Wrapper to video add that retry the function if there is a database error
// We need this because we run the transaction in SERIALIZABLE isolation that can fail
function addVideoRetryWrapper (req, res, next) {
utils.transactionRetryer(
function (callback) {
return addVideo(req, res, req.files.videofile[0], callback)
},
function (err) {
if (err) {
logger.error('Cannot insert the video with many retries.', { error: err })
return next(err)
}
// TODO : include Location of the new video -> 201
return res.type('json').status(204).end()
}
)
}
function addVideo (req, res, videoFile, callback) {
const videoInfos = req.body
waterfall([
function startTransaction (callbackWaterfall) {
db.sequelize.transaction({ isolationLevel: 'SERIALIZABLE' }).asCallback(function (err, t) {
return callbackWaterfall(err, t)
})
},
function findOrCreateAuthor (t, callbackWaterfall) {
const user = res.locals.oauth.token.User
const name = user.username
// null because it is OUR pod
const podId = null
const userId = user.id
db.Author.findOrCreateAuthor(name, podId, userId, t, function (err, authorInstance) {
return callbackWaterfall(err, t, authorInstance)
})
},
function findOrCreateTags (t, author, callbackWaterfall) {
const tags = videoInfos.tags
db.Tag.findOrCreateTags(tags, t, function (err, tagInstances) {
return callbackWaterfall(err, t, author, tagInstances)
})
},
function createVideoObject (t, author, tagInstances, callbackWaterfall) {
const videoData = {
name: videoInfos.name,
remoteId: null,
extname: path.extname(videoFile.filename),
description: videoInfos.description,
duration: videoFile.duration,
authorId: author.id
}
const video = db.Video.build(videoData)
return callbackWaterfall(null, t, author, tagInstances, video)
},
// Set the videoname the same as the id
function renameVideoFile (t, author, tagInstances, video, callbackWaterfall) {
const videoDir = constants.CONFIG.STORAGE.VIDEOS_DIR
const source = path.join(videoDir, videoFile.filename)
const destination = path.join(videoDir, video.getVideoFilename())
fs.rename(source, destination, function (err) {
if (err) return callbackWaterfall(err)
// This is important in case if there is another attempt
videoFile.filename = video.getVideoFilename()
return callbackWaterfall(null, t, author, tagInstances, video)
})
},
function insertVideoIntoDB (t, author, tagInstances, video, callbackWaterfall) {
const options = { transaction: t }
// Add tags association
video.save(options).asCallback(function (err, videoCreated) {
if (err) return callbackWaterfall(err)
// Do not forget to add Author informations to the created video
videoCreated.Author = author
return callbackWaterfall(err, t, tagInstances, videoCreated)
})
},
function associateTagsToVideo (t, tagInstances, video, callbackWaterfall) {
const options = { transaction: t }
video.setTags(tagInstances, options).asCallback(function (err) {
video.Tags = tagInstances
return callbackWaterfall(err, t, video)
})
},
function sendToFriends (t, video, callbackWaterfall) {
video.toAddRemoteJSON(function (err, remoteVideo) {
if (err) return callbackWaterfall(err)
// Now we'll add the video's meta data to our friends
friends.addVideoToFriends(remoteVideo, t, function (err) {
return callbackWaterfall(err, t)
})
})
}
], function andFinally (err, t) {
if (err) {
// This is just a debug because we will retry the insert
logger.debug('Cannot insert the video.', { error: err })
// Abort transaction?
if (t) t.rollback()
return callback(err)
}
// Commit transaction
t.commit().asCallback(function (err) {
if (err) return callback(err)
logger.info('Video with name %s created.', videoInfos.name)
return callback(null)
})
})
}
function updateVideoRetryWrapper (req, res, next) {
utils.transactionRetryer(
function (callback) {
return updateVideo(req, res, callback)
},
function (err) {
if (err) {
logger.error('Cannot update the video with many retries.', { error: err })
return next(err)
}
// TODO : include Location of the new video -> 201
return res.type('json').status(204).end()
}
)
}
function updateVideo (req, res, finalCallback) {
const videoInstance = res.locals.video
const videoInfosToUpdate = req.body
waterfall([
function startTransaction (callback) {
db.sequelize.transaction({ isolationLevel: 'SERIALIZABLE' }).asCallback(function (err, t) {
return callback(err, t)
})
},
function findOrCreateTags (t, callback) {
if (videoInfosToUpdate.tags) {
db.Tag.findOrCreateTags(videoInfosToUpdate.tags, t, function (err, tagInstances) {
return callback(err, t, tagInstances)
})
} else {
return callback(null, t, null)
}
},
function updateVideoIntoDB (t, tagInstances, callback) {
const options = { transaction: t }
if (videoInfosToUpdate.name) videoInstance.set('name', videoInfosToUpdate.name)
if (videoInfosToUpdate.description) videoInstance.set('description', videoInfosToUpdate.description)
// Add tags association
videoInstance.save(options).asCallback(function (err) {
return callback(err, t, tagInstances)
})
},
function associateTagsToVideo (t, tagInstances, callback) {
if (tagInstances) {
const options = { transaction: t }
videoInstance.setTags(tagInstances, options).asCallback(function (err) {
videoInstance.Tags = tagInstances
return callback(err, t)
})
} else {
return callback(null, t)
}
},
function sendToFriends (t, callback) {
const json = videoInstance.toUpdateRemoteJSON()
// Now we'll update the video's meta data to our friends
friends.updateVideoToFriends(json, t, function (err) {
return callback(err, t)
})
}
], function andFinally (err, t) {
if (err) {
logger.debug('Cannot update the video.', { error: err })
// Abort transaction?
if (t) t.rollback()
return finalCallback(err)
}
// Commit transaction
t.commit().asCallback(function (err) {
if (err) return finalCallback(err)
logger.info('Video with name %s updated.', videoInfosToUpdate.name)
return finalCallback(null)
})
})
}
function getVideo (req, res, next) {
const videoInstance = res.locals.video
res.json(videoInstance.toFormatedJSON())
}
function listVideos (req, res, next) {
db.Video.listForApi(req.query.start, req.query.count, req.query.sort, function (err, videosList, videosTotal) {
if (err) return next(err)
res.json(utils.getFormatedObjects(videosList, videosTotal))
})
}
function removeVideo (req, res, next) {
const videoInstance = res.locals.video
videoInstance.destroy().asCallback(function (err) {
if (err) {
logger.error('Errors when removed the video.', { error: err })
return next(err)
}
return res.type('json').status(204).end()
})
}
function searchVideos (req, res, next) {
db.Video.searchAndPopulateAuthorAndPodAndTags(
req.params.value, req.query.field, req.query.start, req.query.count, req.query.sort,
function (err, videosList, videosTotal) {
if (err) return next(err)
res.json(utils.getFormatedObjects(videosList, videosTotal))
}
)
}
function listVideoAbuses (req, res, next) {
db.VideoAbuse.listForApi(req.query.start, req.query.count, req.query.sort, function (err, abusesList, abusesTotal) {
if (err) return next(err)
res.json(utils.getFormatedObjects(abusesList, abusesTotal))
})
}
function reportVideoAbuseRetryWrapper (req, res, next) {
utils.transactionRetryer(
function (callback) {
return reportVideoAbuse(req, res, callback)
},
function (err) {
if (err) {
logger.error('Cannot report abuse to the video with many retries.', { error: err })
return next(err)
}
return res.type('json').status(204).end()
}
)
}
function reportVideoAbuse (req, res, finalCallback) {
const videoInstance = res.locals.video
const reporterUsername = res.locals.oauth.token.User.username
const abuse = {
reporterUsername,
reason: req.body.reason,
videoId: videoInstance.id,
reporterPodId: null // This is our pod that reported this abuse
}
waterfall([
function startTransaction (callback) {
db.sequelize.transaction().asCallback(function (err, t) {
return callback(err, t)
})
},
function createAbuse (t, callback) {
db.VideoAbuse.create(abuse).asCallback(function (err, abuse) {
return callback(err, t, abuse)
})
},
function sendToFriendsIfNeeded (t, abuse, callback) {
// We send the information to the destination pod
if (videoInstance.isOwned() === false) {
const reportData = {
reporterUsername,
reportReason: abuse.reason,
videoRemoteId: videoInstance.remoteId
}
friends.reportAbuseVideoToFriend(reportData, videoInstance)
}
return callback(null, t)
}
], function andFinally (err, t) {
if (err) {
logger.debug('Cannot update the video.', { error: err })
// Abort transaction?
if (t) t.rollback()
return finalCallback(err)
}
// Commit transaction
t.commit().asCallback(function (err) {
if (err) return finalCallback(err)
logger.info('Abuse report for video %s created.', videoInstance.name)
return finalCallback(null)
})
})
}
|