Server: try to have a better video integrity

pull/30/head
Chocobozzz 2017-01-06 23:24:47 +01:00
parent bb0b243c92
commit ed04d94f6d
6 changed files with 194 additions and 71 deletions

View File

@ -10,6 +10,7 @@ const secureMiddleware = middlewares.secure
const videosValidators = middlewares.validators.remote.videos
const signatureValidators = middlewares.validators.remote.signature
const logger = require('../../../helpers/logger')
const utils = require('../../../helpers/utils')
const router = express.Router()
@ -37,11 +38,11 @@ function remoteVideos (req, res, next) {
switch (request.type) {
case 'add':
addRemoteVideo(data, fromPod, callbackEach)
addRemoteVideoRetryWrapper(data, fromPod, callbackEach)
break
case 'update':
updateRemoteVideo(data, fromPod, callbackEach)
updateRemoteVideoRetryWrapper(data, fromPod, callbackEach)
break
case 'remove':
@ -63,13 +64,30 @@ function remoteVideos (req, res, next) {
return res.type('json').status(204).end()
}
// Handle retries on fail
function addRemoteVideoRetryWrapper (videoToCreateData, fromPod, finalCallback) {
utils.transactionRetryer(
function (callback) {
return addRemoteVideo(videoToCreateData, fromPod, callback)
},
function (err) {
if (err) {
logger.error('Cannot insert the remote video with many retries.', { error: err })
return finalCallback(err)
}
return finalCallback()
}
)
}
function addRemoteVideo (videoToCreateData, fromPod, finalCallback) {
logger.debug('Adding remote video "%s".', videoToCreateData.name)
logger.debug('Adding remote video "%s".', videoToCreateData.remoteId)
waterfall([
function startTransaction (callback) {
db.sequelize.transaction().asCallback(function (err, t) {
db.sequelize.transaction({ isolationLevel: 'SERIALIZABLE' }).asCallback(function (err, t) {
return callback(err, t)
})
},
@ -103,6 +121,7 @@ function addRemoteVideo (videoToCreateData, fromPod, finalCallback) {
authorId: author.id,
duration: videoToCreateData.duration,
createdAt: videoToCreateData.createdAt,
// FIXME: updatedAt does not seems to be considered by Sequelize
updatedAt: videoToCreateData.updatedAt
}
@ -142,7 +161,8 @@ function addRemoteVideo (videoToCreateData, fromPod, finalCallback) {
], function (err, t) {
if (err) {
logger.error('Cannot insert the remote video.')
// This is just a debug because we will retry the insert
logger.debug('Cannot insert the remote video.', { error: err })
// Abort transaction?
if (t) t.rollback()
@ -157,8 +177,25 @@ function addRemoteVideo (videoToCreateData, fromPod, finalCallback) {
})
}
// Handle retries on fail
function updateRemoteVideoRetryWrapper (videoAttributesToUpdate, fromPod, finalCallback) {
utils.transactionRetryer(
function (callback) {
return updateRemoteVideo(videoAttributesToUpdate, fromPod, callback)
},
function (err) {
if (err) {
logger.error('Cannot update the remote video with many retries.', { error: err })
return finalCallback(err)
}
return finalCallback()
}
)
}
function updateRemoteVideo (videoAttributesToUpdate, fromPod, finalCallback) {
logger.debug('Updating remote video "%s".', videoAttributesToUpdate.name)
logger.debug('Updating remote video "%s".', videoAttributesToUpdate.remoteId)
waterfall([
@ -208,7 +245,8 @@ function updateRemoteVideo (videoAttributesToUpdate, fromPod, finalCallback) {
], function (err, t) {
if (err) {
logger.error('Cannot update the remote video.')
// This is just a debug because we will retry the insert
logger.debug('Cannot update the remote video.', { error: err })
// Abort transaction?
if (t) t.rollback()
@ -238,7 +276,7 @@ function reportAbuseRemoteVideo (reportData, fromPod, callback) {
if (err || !video) {
if (!err) err = new Error('video not found')
logger.error('Cannot load video from host and remote id.', { error: err })
logger.error('Cannot load video from id.', { error: err, id: reportData.videoRemoteId })
return callback(err)
}
@ -260,7 +298,7 @@ function fetchVideo (podHost, remoteId, callback) {
if (err || !video) {
if (!err) err = new Error('video not found')
logger.error('Cannot load video from host and remote id.', { error: err })
logger.error('Cannot load video from host and remote id.', { error: err, podHost, remoteId })
return callback(err)
}

View File

@ -70,13 +70,13 @@ router.put('/:id',
oAuth.authenticate,
reqFiles,
validatorsVideos.videosUpdate,
updateVideo
updateVideoRetryWrapper
)
router.post('/',
oAuth.authenticate,
reqFiles,
validatorsVideos.videosAdd,
addVideo
addVideoRetryWrapper
)
router.get('/:id',
validatorsVideos.videosGet,
@ -103,19 +103,37 @@ module.exports = router
// ---------------------------------------------------------------------------
function addVideo (req, res, next) {
const videoFile = req.files.videofile[0]
// 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 (callback) {
db.sequelize.transaction().asCallback(function (err, t) {
return callback(err, t)
function startTransaction (callbackWaterfall) {
db.sequelize.transaction({ isolationLevel: 'SERIALIZABLE' }).asCallback(function (err, t) {
return callbackWaterfall(err, t)
})
},
function findOrCreateAuthor (t, callback) {
function findOrCreateAuthor (t, callbackWaterfall) {
const user = res.locals.oauth.token.User
const name = user.username
@ -124,19 +142,19 @@ function addVideo (req, res, next) {
const userId = user.id
db.Author.findOrCreateAuthor(name, podId, userId, t, function (err, authorInstance) {
return callback(err, t, authorInstance)
return callbackWaterfall(err, t, authorInstance)
})
},
function findOrCreateTags (t, author, callback) {
function findOrCreateTags (t, author, callbackWaterfall) {
const tags = videoInfos.tags
db.Tag.findOrCreateTags(tags, t, function (err, tagInstances) {
return callback(err, t, author, tagInstances)
return callbackWaterfall(err, t, author, tagInstances)
})
},
function createVideoObject (t, author, tagInstances, callback) {
function createVideoObject (t, author, tagInstances, callbackWaterfall) {
const videoData = {
name: videoInfos.name,
remoteId: null,
@ -148,74 +166,97 @@ function addVideo (req, res, next) {
const video = db.Video.build(videoData)
return callback(null, t, author, tagInstances, video)
return callbackWaterfall(null, t, author, tagInstances, video)
},
// Set the videoname the same as the id
function renameVideoFile (t, author, tagInstances, video, callback) {
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) {
return callback(err, t, author, tagInstances, video)
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, callback) {
function insertVideoIntoDB (t, author, tagInstances, video, callbackWaterfall) {
const options = { transaction: t }
// Add tags association
video.save(options).asCallback(function (err, videoCreated) {
if (err) return callback(err)
if (err) return callbackWaterfall(err)
// Do not forget to add Author informations to the created video
videoCreated.Author = author
return callback(err, t, tagInstances, videoCreated)
return callbackWaterfall(err, t, tagInstances, videoCreated)
})
},
function associateTagsToVideo (t, tagInstances, video, callback) {
function associateTagsToVideo (t, tagInstances, video, callbackWaterfall) {
const options = { transaction: t }
video.setTags(tagInstances, options).asCallback(function (err) {
video.Tags = tagInstances
return callback(err, t, video)
return callbackWaterfall(err, t, video)
})
},
function sendToFriends (t, video, callback) {
function sendToFriends (t, video, callbackWaterfall) {
video.toAddRemoteJSON(function (err, remoteVideo) {
if (err) return callback(err)
if (err) return callbackWaterfall(err)
// Now we'll add the video's meta data to our friends
friends.addVideoToFriends(remoteVideo)
return callback(null, t)
friends.addVideoToFriends(remoteVideo, t, function (err) {
return callbackWaterfall(err, t)
})
})
}
], function andFinally (err, t) {
if (err) {
logger.error('Cannot insert the video.')
// 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 next(err)
return callback(err)
}
// Commit transaction
t.commit()
// TODO : include Location of the new video -> 201
return res.type('json').status(204).end()
logger.info('Video with name %s created.', videoInfos.name)
return callback(null)
})
}
function updateVideo (req, res, next) {
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
@ -267,26 +308,25 @@ function updateVideo (req, res, next) {
const json = videoInstance.toUpdateRemoteJSON()
// Now we'll update the video's meta data to our friends
friends.updateVideoToFriends(json)
return callback(null, t)
friends.updateVideoToFriends(json, t, function (err) {
return callback(err, t)
})
}
], function andFinally (err, t) {
if (err) {
logger.error('Cannot insert the video.')
logger.debug('Cannot update the video.', { error: err })
// Abort transaction?
if (t) t.rollback()
return next(err)
return finalCallback(err)
}
// Commit transaction
t.commit()
// TODO : include Location of the new video -> 201
return res.type('json').status(204).end()
return finalCallback(null)
})
}

View File

@ -1,6 +1,7 @@
'use strict'
const crypto = require('crypto')
const retry = require('async/retry')
const logger = require('./logger')
@ -9,7 +10,8 @@ const utils = {
cleanForExit,
generateRandomString,
isTestInstance,
getFormatedObjects
getFormatedObjects,
transactionRetryer
}
function badRequest (req, res, next) {
@ -46,6 +48,18 @@ function getFormatedObjects (objects, objectsTotal) {
}
}
function transactionRetryer (func, callback) {
retry({
times: 5,
errorFilter: function (err) {
const willRetry = (err.name === 'SequelizeDatabaseError')
logger.debug('Maybe retrying the transaction function.', { willRetry })
return willRetry
}
}, func, callback)
}
// ---------------------------------------------------------------------------
module.exports = utils

View File

@ -24,16 +24,33 @@ const friends = {
sendOwnedVideosToPod
}
function addVideoToFriends (videoData) {
createRequest('add', constants.REQUEST_ENDPOINTS.VIDEOS, videoData)
function addVideoToFriends (videoData, transaction, callback) {
const options = {
type: 'add',
endpoint: constants.REQUEST_ENDPOINTS.VIDEOS,
data: videoData,
transaction
}
createRequest(options, callback)
}
function updateVideoToFriends (videoData) {
createRequest('update', constants.REQUEST_ENDPOINTS.VIDEOS, videoData)
function updateVideoToFriends (videoData, transaction, callback) {
const options = {
type: 'update',
endpoint: constants.REQUEST_ENDPOINTS.VIDEOS,
data: videoData,
transaction
}
createRequest(options, callback)
}
function removeVideoToFriends (videoParams) {
createRequest('remove', constants.REQUEST_ENDPOINTS.VIDEOS, videoParams)
const options = {
type: 'remove',
endpoint: constants.REQUEST_ENDPOINTS.VIDEOS,
data: videoParams
}
createRequest(options)
}
function reportAbuseVideoToFriend (reportData, video) {
@ -258,25 +275,35 @@ function makeRequestsToWinningPods (cert, podsList, callback) {
}
// Wrapper that populate "toIds" argument with all our friends if it is not specified
function createRequest (type, endpoint, data, toIds) {
if (toIds) return _createRequest(type, endpoint, data, toIds)
// { type, endpoint, data, toIds, transaction }
function createRequest (options, callback) {
if (!callback) callback = function () {}
if (options.toIds) return _createRequest(options, callback)
// If the "toIds" pods is not specified, we send the request to all our friends
db.Pod.listAllIds(function (err, podIds) {
db.Pod.listAllIds(options.transaction, function (err, podIds) {
if (err) {
logger.error('Cannot get pod ids', { error: err })
return
}
return _createRequest(type, endpoint, data, podIds)
const newOptions = Object.assign(options, { toIds: podIds })
return _createRequest(newOptions, callback)
})
}
function _createRequest (type, endpoint, data, toIds) {
// { type, endpoint, data, toIds, transaction }
function _createRequest (options, callback) {
const type = options.type
const endpoint = options.endpoint
const data = options.data
const toIds = options.toIds
const transaction = options.transaction
const pods = []
// If there are no destination pods abort
if (toIds.length === 0) return
if (toIds.length === 0) return callback(null)
toIds.forEach(function (toPod) {
pods.push(db.Pod.build({ id: toPod }))
@ -290,17 +317,14 @@ function _createRequest (type, endpoint, data, toIds) {
}
}
// We run in transaction to keep coherency between Request and RequestToPod tables
db.sequelize.transaction(function (t) {
const dbRequestOptions = {
transaction: t
}
const dbRequestOptions = {
transaction
}
return db.Request.create(createQuery, dbRequestOptions).then(function (request) {
return request.setPods(pods, dbRequestOptions)
})
}).asCallback(function (err) {
if (err) logger.error('Error in createRequest transaction.', { error: err })
return db.Request.create(createQuery, dbRequestOptions).asCallback(function (err, request) {
if (err) return callback(err)
return request.setPods(pods, dbRequestOptions).asCallback(callback)
})
}

View File

@ -115,11 +115,18 @@ function list (callback) {
return this.findAll().asCallback(callback)
}
function listAllIds (callback) {
function listAllIds (transaction, callback) {
if (!callback) {
callback = transaction
transaction = null
}
const query = {
attributes: [ 'id' ]
}
if (transaction) query.transaction = transaction
return this.findAll(query).asCallback(function (err, pods) {
if (err) return callback(err)

View File

@ -291,8 +291,8 @@ function listWithLimitAndRandom (limit, callback) {
order: [
[ 'id', 'ASC' ]
],
offset: start,
limit: limit,
// offset: start,
// limit: limit,
include: [ this.sequelize.models.Pod ]
}