server/controllers/api/videos/index.ts

   1 import * as express from 'express'
   2 import { extname } from 'path'
   3 import { VideoCreate, VideoPrivacy, VideoState, VideoUpdate } from '../../../../shared'
   4 import { getVideoFileFPS, getVideoFileResolution, getMetadataFromFile } from '../../../helpers/ffmpeg-utils'
   5 import { logger } from '../../../helpers/logger'
   6 import { auditLoggerFactory, getAuditIdFromRes, VideoAuditView } from '../../../helpers/audit-logger'
   7 import { getFormattedObjects, getServerActor } from '../../../helpers/utils'
   8 import { autoBlacklistVideoIfNeeded } from '../../../lib/video-blacklist'
   9 import {
  10   DEFAULT_AUDIO_RESOLUTION,
  11   MIMETYPES,
  12   VIDEO_CATEGORIES,
  13   VIDEO_LANGUAGES,
  14   VIDEO_LICENCES,
  15   VIDEO_PRIVACIES
  16 } from '../../../initializers/constants'
  17 import {
  18   changeVideoChannelShare,
  19   federateVideoIfNeeded,
  20   fetchRemoteVideoDescription,
  21   getVideoActivityPubUrl
  22 } from '../../../lib/activitypub'
  23 import { JobQueue } from '../../../lib/job-queue'
  24 import { Redis } from '../../../lib/redis'
  25 import {
  26   asyncMiddleware,
  27   asyncRetryTransactionMiddleware,
  28   authenticate,
  29   checkVideoFollowConstraints,
  30   commonVideosFiltersValidator,
  31   optionalAuthenticate,
  32   paginationValidator,
  33   setDefaultPagination,
  34   setDefaultSort,
  35   videosAddValidator,
  36   videosCustomGetValidator,
  37   videosGetValidator,
  38   videosRemoveValidator,
  39   videosSortValidator,
  40   videosUpdateValidator,
  41   videoFileMetadataGetValidator
  42 } from '../../../middlewares'
  43 import { TagModel } from '../../../models/video/tag'
  44 import { VideoModel } from '../../../models/video/video'
  45 import { VideoFileModel } from '../../../models/video/video-file'
  46 import { abuseVideoRouter } from './abuse'
  47 import { blacklistRouter } from './blacklist'
  48 import { videoCommentRouter } from './comment'
  49 import { rateVideoRouter } from './rate'
  50 import { ownershipVideoRouter } from './ownership'
  51 import { VideoFilter } from '../../../../shared/models/videos/video-query.type'
  52 import { buildNSFWFilter, createReqFiles, getCountVideos } from '../../../helpers/express-utils'
  53 import { ScheduleVideoUpdateModel } from '../../../models/video/schedule-video-update'
  54 import { videoCaptionsRouter } from './captions'
  55 import { videoImportsRouter } from './import'
  56 import { resetSequelizeInstance } from '../../../helpers/database-utils'
  57 import { move } from 'fs-extra'
  58 import { watchingRouter } from './watching'
  59 import { Notifier } from '../../../lib/notifier'
  60 import { sendView } from '../../../lib/activitypub/send/send-view'
  61 import { CONFIG } from '../../../initializers/config'
  62 import { sequelizeTypescript } from '../../../initializers/database'
  63 import { createVideoMiniatureFromExisting, generateVideoMiniature } from '../../../lib/thumbnail'
  64 import { ThumbnailType } from '../../../../shared/models/videos/thumbnail.type'
  65 import { VideoTranscodingPayload } from '../../../lib/job-queue/handlers/video-transcoding'
  66 import { Hooks } from '../../../lib/plugins/hooks'
  67 import { MVideoDetails, MVideoFullLight } from '@server/typings/models'
  68 import { createTorrentAndSetInfoHash } from '@server/helpers/webtorrent'
  69 import { getVideoFilePath } from '@server/lib/video-paths'
  70 import toInt from 'validator/lib/toInt'
  71
  72 const auditLogger = auditLoggerFactory('videos')
  73 const videosRouter = express.Router()
  74
  75 const reqVideoFileAdd = createReqFiles(
  76   [ 'videofile', 'thumbnailfile', 'previewfile' ],
  77   Object.assign({}, MIMETYPES.VIDEO.MIMETYPE_EXT, MIMETYPES.IMAGE.MIMETYPE_EXT),
  78   {
  79     videofile: CONFIG.STORAGE.TMP_DIR,
  80     thumbnailfile: CONFIG.STORAGE.TMP_DIR,
  81     previewfile: CONFIG.STORAGE.TMP_DIR
  82   }
  83 )
  84 const reqVideoFileUpdate = createReqFiles(
  85   [ 'thumbnailfile', 'previewfile' ],
  86   MIMETYPES.IMAGE.MIMETYPE_EXT,
  87   {
  88     thumbnailfile: CONFIG.STORAGE.TMP_DIR,
  89     previewfile: CONFIG.STORAGE.TMP_DIR
  90   }
  91 )
  92
  93 videosRouter.use('/', abuseVideoRouter)
  94 videosRouter.use('/', blacklistRouter)
  95 videosRouter.use('/', rateVideoRouter)
  96 videosRouter.use('/', videoCommentRouter)
  97 videosRouter.use('/', videoCaptionsRouter)
  98 videosRouter.use('/', videoImportsRouter)
  99 videosRouter.use('/', ownershipVideoRouter)
 100 videosRouter.use('/', watchingRouter)
 101
 102 videosRouter.get('/categories', listVideoCategories)
 103 videosRouter.get('/licences', listVideoLicences)
 104 videosRouter.get('/languages', listVideoLanguages)
 105 videosRouter.get('/privacies', listVideoPrivacies)
 106
 107 videosRouter.get('/',
 108   paginationValidator,
 109   videosSortValidator,
 110   setDefaultSort,
 111   setDefaultPagination,
 112   optionalAuthenticate,
 113   commonVideosFiltersValidator,
 114   asyncMiddleware(listVideos)
 115 )
 116 videosRouter.put('/:id',
 117   authenticate,
 118   reqVideoFileUpdate,
 119   asyncMiddleware(videosUpdateValidator),
 120   asyncRetryTransactionMiddleware(updateVideo)
 121 )
 122 videosRouter.post('/upload',
 123   authenticate,
 124   reqVideoFileAdd,
 125   asyncMiddleware(videosAddValidator),
 126   asyncRetryTransactionMiddleware(addVideo)
 127 )
 128
 129 videosRouter.get('/:id/description',
 130   asyncMiddleware(videosGetValidator),
 131   asyncMiddleware(getVideoDescription)
 132 )
 133 videosRouter.get('/:id/metadata/:videoFileId',
 134   asyncMiddleware(videoFileMetadataGetValidator),
 135   asyncMiddleware(getVideoFileMetadata)
 136 )
 137 videosRouter.get('/:id',
 138   optionalAuthenticate,
 139   asyncMiddleware(videosCustomGetValidator('only-video-with-rights')),
 140   asyncMiddleware(checkVideoFollowConstraints),
 141   asyncMiddleware(getVideo)
 142 )
 143 videosRouter.post('/:id/views',
 144   asyncMiddleware(videosCustomGetValidator('only-immutable-attributes')),
 145   asyncMiddleware(viewVideo)
 146 )
 147
 148 videosRouter.delete('/:id',
 149   authenticate,
 150   asyncMiddleware(videosRemoveValidator),
 151   asyncRetryTransactionMiddleware(removeVideo)
 152 )
 153
 154 // ---------------------------------------------------------------------------
 155
 156 export {
 157   videosRouter
 158 }
 159
 160 // ---------------------------------------------------------------------------
 161
 162 function listVideoCategories (req: express.Request, res: express.Response) {
 163   res.json(VIDEO_CATEGORIES)
 164 }
 165
 166 function listVideoLicences (req: express.Request, res: express.Response) {
 167   res.json(VIDEO_LICENCES)
 168 }
 169
 170 function listVideoLanguages (req: express.Request, res: express.Response) {
 171   res.json(VIDEO_LANGUAGES)
 172 }
 173
 174 function listVideoPrivacies (req: express.Request, res: express.Response) {
 175   res.json(VIDEO_PRIVACIES)
 176 }
 177
 178 async function addVideo (req: express.Request, res: express.Response) {
 179   // Processing the video could be long
 180   // Set timeout to 10 minutes
 181   req.setTimeout(1000 * 60 * 10, () => {
 182     logger.error('Upload video has timed out.')
 183     return res.sendStatus(408)
 184   })
 185
 186   const videoPhysicalFile = req.files['videofile'][0]
 187   const videoInfo: VideoCreate = req.body
 188
 189   // Prepare data so we don't block the transaction
 190   const videoData = {
 191     name: videoInfo.name,
 192     remote: false,
 193     category: videoInfo.category,
 194     licence: videoInfo.licence,
 195     language: videoInfo.language,
 196     commentsEnabled: videoInfo.commentsEnabled !== false, // If the value is not "false", the default is "true"
 197     downloadEnabled: videoInfo.downloadEnabled !== false,
 198     waitTranscoding: videoInfo.waitTranscoding || false,
 199     state: CONFIG.TRANSCODING.ENABLED ? VideoState.TO_TRANSCODE : VideoState.PUBLISHED,
 200     nsfw: videoInfo.nsfw || false,
 201     description: videoInfo.description,
 202     support: videoInfo.support,
 203     privacy: videoInfo.privacy || VideoPrivacy.PRIVATE,
 204     duration: videoPhysicalFile['duration'], // duration was added by a previous middleware
 205     channelId: res.locals.videoChannel.id,
 206     originallyPublishedAt: videoInfo.originallyPublishedAt
 207   }
 208
 209   const video = new VideoModel(videoData) as MVideoDetails
 210   video.url = getVideoActivityPubUrl(video) // We use the UUID, so set the URL after building the object
 211
 212   const videoFile = new VideoFileModel({
 213     extname: extname(videoPhysicalFile.filename),
 214     size: videoPhysicalFile.size,
 215     videoStreamingPlaylistId: null,
 216     metadata: await getMetadataFromFile<any>(videoPhysicalFile.path)
 217   })
 218
 219   if (videoFile.isAudio()) {
 220     videoFile.resolution = DEFAULT_AUDIO_RESOLUTION
 221   } else {
 222     videoFile.fps = await getVideoFileFPS(videoPhysicalFile.path)
 223     videoFile.resolution = (await getVideoFileResolution(videoPhysicalFile.path)).videoFileResolution
 224   }
 225
 226   // Move physical file
 227   const destination = getVideoFilePath(video, videoFile)
 228   await move(videoPhysicalFile.path, destination)
 229   // This is important in case if there is another attempt in the retry process
 230   videoPhysicalFile.filename = getVideoFilePath(video, videoFile)
 231   videoPhysicalFile.path = destination
 232
 233   // Process thumbnail or create it from the video
 234   const thumbnailField = req.files['thumbnailfile']
 235   const thumbnailModel = thumbnailField
 236     ? await createVideoMiniatureFromExisting(thumbnailField[0].path, video, ThumbnailType.MINIATURE, false)
 237     : await generateVideoMiniature(video, videoFile, ThumbnailType.MINIATURE)
 238
 239   // Process preview or create it from the video
 240   const previewField = req.files['previewfile']
 241   const previewModel = previewField
 242     ? await createVideoMiniatureFromExisting(previewField[0].path, video, ThumbnailType.PREVIEW, false)
 243     : await generateVideoMiniature(video, videoFile, ThumbnailType.PREVIEW)
 244
 245   // Create the torrent file
 246   await createTorrentAndSetInfoHash(video, videoFile)
 247
 248   const { videoCreated } = await sequelizeTypescript.transaction(async t => {
 249     const sequelizeOptions = { transaction: t }
 250
 251     const videoCreated = await video.save(sequelizeOptions) as MVideoFullLight
 252
 253     await videoCreated.addAndSaveThumbnail(thumbnailModel, t)
 254     await videoCreated.addAndSaveThumbnail(previewModel, t)
 255
 256     // Do not forget to add video channel information to the created video
 257     videoCreated.VideoChannel = res.locals.videoChannel
 258
 259     videoFile.videoId = video.id
 260     await videoFile.save(sequelizeOptions)
 261
 262     video.VideoFiles = [ videoFile ]
 263
 264     // Create tags
 265     if (videoInfo.tags !== undefined) {
 266       const tagInstances = await TagModel.findOrCreateTags(videoInfo.tags, t)
 267
 268       await video.$set('Tags', tagInstances, sequelizeOptions)
 269       video.Tags = tagInstances
 270     }
 271
 272     // Schedule an update in the future?
 273     if (videoInfo.scheduleUpdate) {
 274       await ScheduleVideoUpdateModel.create({
 275         videoId: video.id,
 276         updateAt: videoInfo.scheduleUpdate.updateAt,
 277         privacy: videoInfo.scheduleUpdate.privacy || null
 278       }, { transaction: t })
 279     }
 280
 281     await autoBlacklistVideoIfNeeded({
 282       video,
 283       user: res.locals.oauth.token.User,
 284       isRemote: false,
 285       isNew: true,
 286       transaction: t
 287     })
 288     await federateVideoIfNeeded(video, true, t)
 289
 290     auditLogger.create(getAuditIdFromRes(res), new VideoAuditView(videoCreated.toFormattedDetailsJSON()))
 291     logger.info('Video with name %s and uuid %s created.', videoInfo.name, videoCreated.uuid)
 292
 293     return { videoCreated }
 294   })
 295
 296   Notifier.Instance.notifyOnNewVideoIfNeeded(videoCreated)
 297
 298   if (video.state === VideoState.TO_TRANSCODE) {
 299     // Put uuid because we don't have id auto incremented for now
 300     let dataInput: VideoTranscodingPayload
 301
 302     if (videoFile.isAudio()) {
 303       dataInput = {
 304         type: 'merge-audio' as 'merge-audio',
 305         resolution: DEFAULT_AUDIO_RESOLUTION,
 306         videoUUID: videoCreated.uuid,
 307         isNewVideo: true
 308       }
 309     } else {
 310       dataInput = {
 311         type: 'optimize' as 'optimize',
 312         videoUUID: videoCreated.uuid,
 313         isNewVideo: true
 314       }
 315     }
 316
 317     await JobQueue.Instance.createJobWithPromise({ type: 'video-transcoding', payload: dataInput })
 318   }
 319
 320   Hooks.runAction('action:api.video.uploaded', { video: videoCreated })
 321
 322   return res.json({
 323     video: {
 324       id: videoCreated.id,
 325       uuid: videoCreated.uuid
 326     }
 327   }).end()
 328 }
 329
 330 async function updateVideo (req: express.Request, res: express.Response) {
 331   const videoInstance = res.locals.videoAll
 332   const videoFieldsSave = videoInstance.toJSON()
 333   const oldVideoAuditView = new VideoAuditView(videoInstance.toFormattedDetailsJSON())
 334   const videoInfoToUpdate: VideoUpdate = req.body
 335
 336   const wasConfidentialVideo = videoInstance.isConfidential()
 337   const hadPrivacyForFederation = videoInstance.hasPrivacyForFederation()
 338
 339   // Process thumbnail or create it from the video
 340   const thumbnailModel = req.files && req.files['thumbnailfile']
 341     ? await createVideoMiniatureFromExisting(req.files['thumbnailfile'][0].path, videoInstance, ThumbnailType.MINIATURE, false)
 342     : undefined
 343
 344   const previewModel = req.files && req.files['previewfile']
 345     ? await createVideoMiniatureFromExisting(req.files['previewfile'][0].path, videoInstance, ThumbnailType.PREVIEW, false)
 346     : undefined
 347
 348   try {
 349     const videoInstanceUpdated = await sequelizeTypescript.transaction(async t => {
 350       const sequelizeOptions = { transaction: t }
 351       const oldVideoChannel = videoInstance.VideoChannel
 352
 353       if (videoInfoToUpdate.name !== undefined) videoInstance.name = videoInfoToUpdate.name
 354       if (videoInfoToUpdate.category !== undefined) videoInstance.category = videoInfoToUpdate.category
 355       if (videoInfoToUpdate.licence !== undefined) videoInstance.licence = videoInfoToUpdate.licence
 356       if (videoInfoToUpdate.language !== undefined) videoInstance.language = videoInfoToUpdate.language
 357       if (videoInfoToUpdate.nsfw !== undefined) videoInstance.nsfw = videoInfoToUpdate.nsfw
 358       if (videoInfoToUpdate.waitTranscoding !== undefined) videoInstance.waitTranscoding = videoInfoToUpdate.waitTranscoding
 359       if (videoInfoToUpdate.support !== undefined) videoInstance.support = videoInfoToUpdate.support
 360       if (videoInfoToUpdate.description !== undefined) videoInstance.description = videoInfoToUpdate.description
 361       if (videoInfoToUpdate.commentsEnabled !== undefined) videoInstance.commentsEnabled = videoInfoToUpdate.commentsEnabled
 362       if (videoInfoToUpdate.downloadEnabled !== undefined) videoInstance.downloadEnabled = videoInfoToUpdate.downloadEnabled
 363
 364       if (videoInfoToUpdate.originallyPublishedAt !== undefined && videoInfoToUpdate.originallyPublishedAt !== null) {
 365         videoInstance.originallyPublishedAt = new Date(videoInfoToUpdate.originallyPublishedAt)
 366       }
 367
 368       let isNewVideo = false
 369       if (videoInfoToUpdate.privacy !== undefined) {
 370         isNewVideo = videoInstance.isNewVideo(videoInfoToUpdate.privacy)
 371
 372         const newPrivacy = parseInt(videoInfoToUpdate.privacy.toString(), 10)
 373         videoInstance.setPrivacy(newPrivacy)
 374
 375         // Unfederate the video if the new privacy is not compatible with federation
 376         if (hadPrivacyForFederation && !videoInstance.hasPrivacyForFederation()) {
 377           await VideoModel.sendDelete(videoInstance, { transaction: t })
 378         }
 379       }
 380
 381       const videoInstanceUpdated = await videoInstance.save(sequelizeOptions) as MVideoFullLight
 382
 383       if (thumbnailModel) await videoInstanceUpdated.addAndSaveThumbnail(thumbnailModel, t)
 384       if (previewModel) await videoInstanceUpdated.addAndSaveThumbnail(previewModel, t)
 385
 386       // Video tags update?
 387       if (videoInfoToUpdate.tags !== undefined) {
 388         const tagInstances = await TagModel.findOrCreateTags(videoInfoToUpdate.tags, t)
 389
 390         await videoInstanceUpdated.$set('Tags', tagInstances, sequelizeOptions)
 391         videoInstanceUpdated.Tags = tagInstances
 392       }
 393
 394       // Video channel update?
 395       if (res.locals.videoChannel && videoInstanceUpdated.channelId !== res.locals.videoChannel.id) {
 396         await videoInstanceUpdated.$set('VideoChannel', res.locals.videoChannel, { transaction: t })
 397         videoInstanceUpdated.VideoChannel = res.locals.videoChannel
 398
 399         if (hadPrivacyForFederation === true) await changeVideoChannelShare(videoInstanceUpdated, oldVideoChannel, t)
 400       }
 401
 402       // Schedule an update in the future?
 403       if (videoInfoToUpdate.scheduleUpdate) {
 404         await ScheduleVideoUpdateModel.upsert({
 405           videoId: videoInstanceUpdated.id,
 406           updateAt: videoInfoToUpdate.scheduleUpdate.updateAt,
 407           privacy: videoInfoToUpdate.scheduleUpdate.privacy || null
 408         }, { transaction: t })
 409       } else if (videoInfoToUpdate.scheduleUpdate === null) {
 410         await ScheduleVideoUpdateModel.deleteByVideoId(videoInstanceUpdated.id, t)
 411       }
 412
 413       await autoBlacklistVideoIfNeeded({
 414         video: videoInstanceUpdated,
 415         user: res.locals.oauth.token.User,
 416         isRemote: false,
 417         isNew: false,
 418         transaction: t
 419       })
 420
 421       await federateVideoIfNeeded(videoInstanceUpdated, isNewVideo, t)
 422
 423       auditLogger.update(
 424         getAuditIdFromRes(res),
 425         new VideoAuditView(videoInstanceUpdated.toFormattedDetailsJSON()),
 426         oldVideoAuditView
 427       )
 428       logger.info('Video with name %s and uuid %s updated.', videoInstance.name, videoInstance.uuid)
 429
 430       return videoInstanceUpdated
 431     })
 432
 433     if (wasConfidentialVideo) {
 434       Notifier.Instance.notifyOnNewVideoIfNeeded(videoInstanceUpdated)
 435     }
 436
 437     Hooks.runAction('action:api.video.updated', { video: videoInstanceUpdated })
 438   } catch (err) {
 439     // Force fields we want to update
 440     // If the transaction is retried, sequelize will think the object has not changed
 441     // So it will skip the SQL request, even if the last one was ROLLBACKed!
 442     resetSequelizeInstance(videoInstance, videoFieldsSave)
 443
 444     throw err
 445   }
 446
 447   return res.type('json').status(204).end()
 448 }
 449
 450 async function getVideo (req: express.Request, res: express.Response) {
 451   // We need more attributes
 452   const userId: number = res.locals.oauth ? res.locals.oauth.token.User.id : null
 453
 454   const video = await Hooks.wrapPromiseFun(
 455     VideoModel.loadForGetAPI,
 456     { id: res.locals.onlyVideoWithRights.id, userId },
 457     'filter:api.video.get.result'
 458   )
 459
 460   if (video.isOutdated()) {
 461     JobQueue.Instance.createJob({ type: 'activitypub-refresher', payload: { type: 'video', url: video.url } })
 462   }
 463
 464   return res.json(video.toFormattedDetailsJSON())
 465 }
 466
 467 async function viewVideo (req: express.Request, res: express.Response) {
 468   const videoInstance = res.locals.onlyImmutableVideo
 469
 470   const ip = req.ip
 471   const exists = await Redis.Instance.doesVideoIPViewExist(ip, videoInstance.uuid)
 472   if (exists) {
 473     logger.debug('View for ip %s and video %s already exists.', ip, videoInstance.uuid)
 474     return res.status(204).end()
 475   }
 476
 477   await Promise.all([
 478     Redis.Instance.addVideoView(videoInstance.id),
 479     Redis.Instance.setIPVideoView(ip, videoInstance.uuid)
 480   ])
 481
 482   const serverActor = await getServerActor()
 483   await sendView(serverActor, videoInstance, undefined)
 484
 485   Hooks.runAction('action:api.video.viewed', { video: videoInstance, ip })
 486
 487   return res.status(204).end()
 488 }
 489
 490 async function getVideoDescription (req: express.Request, res: express.Response) {
 491   const videoInstance = res.locals.videoAll
 492   let description = ''
 493
 494   if (videoInstance.isOwned()) {
 495     description = videoInstance.description
 496   } else {
 497     description = await fetchRemoteVideoDescription(videoInstance)
 498   }
 499
 500   return res.json({ description })
 501 }
 502
 503 async function getVideoFileMetadata (req: express.Request, res: express.Response) {
 504   const videoFile = await VideoFileModel.loadWithMetadata(toInt(req.params.videoFileId))
 505   return res.json(videoFile.metadata)
 506 }
 507
 508 async function listVideos (req: express.Request, res: express.Response) {
 509   const countVideos = getCountVideos(req)
 510
 511   const apiOptions = await Hooks.wrapObject({
 512     start: req.query.start,
 513     count: req.query.count,
 514     sort: req.query.sort,
 515     includeLocalVideos: true,
 516     categoryOneOf: req.query.categoryOneOf,
 517     licenceOneOf: req.query.licenceOneOf,
 518     languageOneOf: req.query.languageOneOf,
 519     tagsOneOf: req.query.tagsOneOf,
 520     tagsAllOf: req.query.tagsAllOf,
 521     nsfw: buildNSFWFilter(res, req.query.nsfw),
 522     filter: req.query.filter as VideoFilter,
 523     withFiles: false,
 524     user: res.locals.oauth ? res.locals.oauth.token.User : undefined,
 525     countVideos
 526   }, 'filter:api.videos.list.params')
 527
 528   const resultList = await Hooks.wrapPromiseFun(
 529     VideoModel.listForApi,
 530     apiOptions,
 531     'filter:api.videos.list.result'
 532   )
 533
 534   return res.json(getFormattedObjects(resultList.data, resultList.total))
 535 }
 536
 537 async function removeVideo (req: express.Request, res: express.Response) {
 538   const videoInstance = res.locals.videoAll
 539
 540   await sequelizeTypescript.transaction(async t => {
 541     await videoInstance.destroy({ transaction: t })
 542   })
 543
 544   auditLogger.delete(getAuditIdFromRes(res), new VideoAuditView(videoInstance.toFormattedDetailsJSON()))
 545   logger.info('Video with name %s and uuid %s deleted.', videoInstance.name, videoInstance.uuid)
 546
 547   Hooks.runAction('action:api.video.deleted', { video: videoInstance })
 548
 549   return res.type('json').status(204).end()
 550 }