server/middlewares/validators/videos.ts

   1 import 'express-validator'
   2 import * as multer from 'multer'
   3 import * as express from 'express'
   4
   5 import { database as db } from '../../initializers/database'
   6 import { checkErrors } from './utils'
   7 import { CONSTRAINTS_FIELDS, SEARCHABLE_COLUMNS } from '../../initializers'
   8 import { logger, isVideoDurationValid } from '../../helpers'
   9
  10 function videosAddValidator (req: express.Request, res: express.Response, next: express.NextFunction) {
  11   // FIXME: Don't write an error message, it seems there is a bug with express-validator
  12   // 'Should have a valid file'
  13   req.checkBody('videofile').isVideoFile(req.files)
  14   req.checkBody('name', 'Should have a valid name').isVideoNameValid()
  15   req.checkBody('category', 'Should have a valid category').isVideoCategoryValid()
  16   req.checkBody('licence', 'Should have a valid licence').isVideoLicenceValid()
  17   req.checkBody('language', 'Should have a valid language').optional().isVideoLanguageValid()
  18   req.checkBody('nsfw', 'Should have a valid NSFW attribute').isVideoNSFWValid()
  19   req.checkBody('description', 'Should have a valid description').isVideoDescriptionValid()
  20   req.checkBody('tags', 'Should have correct tags').optional().isVideoTagsValid()
  21
  22   logger.debug('Checking videosAdd parameters', { parameters: req.body, files: req.files })
  23
  24   checkErrors(req, res, function () {
  25     const videoFile = req.files.videofile[0]
  26
  27     db.Video.getDurationFromFile(videoFile.path, function (err, duration) {
  28       if (err) {
  29         return res.status(400).send('Cannot retrieve metadata of the file.')
  30       }
  31
  32       if (!isVideoDurationValid(duration)) {
  33         return res.status(400).send('Duration of the video file is too big (max: ' + CONSTRAINTS_FIELDS.VIDEOS.DURATION.max + 's).')
  34       }
  35
  36       videoFile['duration'] = duration
  37       next()
  38     })
  39   })
  40 }
  41
  42 function videosUpdateValidator (req: express.Request, res: express.Response, next: express.NextFunction) {
  43   req.checkParams('id', 'Should have a valid id').notEmpty().isUUID(4)
  44   req.checkBody('name', 'Should have a valid name').optional().isVideoNameValid()
  45   req.checkBody('category', 'Should have a valid category').optional().isVideoCategoryValid()
  46   req.checkBody('licence', 'Should have a valid licence').optional().isVideoLicenceValid()
  47   req.checkBody('language', 'Should have a valid language').optional().isVideoLanguageValid()
  48   req.checkBody('nsfw', 'Should have a valid NSFW attribute').optional().isVideoNSFWValid()
  49   req.checkBody('description', 'Should have a valid description').optional().isVideoDescriptionValid()
  50   req.checkBody('tags', 'Should have correct tags').optional().isVideoTagsValid()
  51
  52   logger.debug('Checking videosUpdate parameters', { parameters: req.body })
  53
  54   checkErrors(req, res, function () {
  55     checkVideoExists(req.params.id, res, function () {
  56       // We need to make additional checks
  57       if (res.locals.video.isOwned() === false) {
  58         return res.status(403).send('Cannot update video of another pod')
  59       }
  60
  61       if (res.locals.video.Author.userId !== res.locals.oauth.token.User.id) {
  62         return res.status(403).send('Cannot update video of another user')
  63       }
  64
  65       next()
  66     })
  67   })
  68 }
  69
  70 function videosGetValidator (req: express.Request, res: express.Response, next: express.NextFunction) {
  71   req.checkParams('id', 'Should have a valid id').notEmpty().isUUID(4)
  72
  73   logger.debug('Checking videosGet parameters', { parameters: req.params })
  74
  75   checkErrors(req, res, function () {
  76     checkVideoExists(req.params.id, res, next)
  77   })
  78 }
  79
  80 function videosRemoveValidator (req: express.Request, res: express.Response, next: express.NextFunction) {
  81   req.checkParams('id', 'Should have a valid id').notEmpty().isUUID(4)
  82
  83   logger.debug('Checking videosRemove parameters', { parameters: req.params })
  84
  85   checkErrors(req, res, function () {
  86     checkVideoExists(req.params.id, res, function () {
  87       // We need to make additional checks
  88
  89       // Check if the user who did the request is able to delete the video
  90       checkUserCanDeleteVideo(res.locals.oauth.token.User.id, res, function () {
  91         next()
  92       })
  93     })
  94   })
  95 }
  96
  97 function videosSearchValidator (req: express.Request, res: express.Response, next: express.NextFunction) {
  98   const searchableColumns = SEARCHABLE_COLUMNS.VIDEOS
  99   req.checkParams('value', 'Should have a valid search').notEmpty()
 100   req.checkQuery('field', 'Should have correct searchable column').optional().isIn(searchableColumns)
 101
 102   logger.debug('Checking videosSearch parameters', { parameters: req.params })
 103
 104   checkErrors(req, res, next)
 105 }
 106
 107 function videoAbuseReportValidator (req: express.Request, res: express.Response, next: express.NextFunction) {
 108   req.checkParams('id', 'Should have a valid id').notEmpty().isUUID(4)
 109   req.checkBody('reason', 'Should have a valid reason').isVideoAbuseReasonValid()
 110
 111   logger.debug('Checking videoAbuseReport parameters', { parameters: req.body })
 112
 113   checkErrors(req, res, function () {
 114     checkVideoExists(req.params.id, res, next)
 115   })
 116 }
 117
 118 function videoRateValidator (req: express.Request, res: express.Response, next: express.NextFunction) {
 119   req.checkParams('id', 'Should have a valid id').notEmpty().isUUID(4)
 120   req.checkBody('rating', 'Should have a valid rate type').isVideoRatingTypeValid()
 121
 122   logger.debug('Checking videoRate parameters', { parameters: req.body })
 123
 124   checkErrors(req, res, function () {
 125     checkVideoExists(req.params.id, res, next)
 126   })
 127 }
 128
 129 function videosBlacklistValidator (req: express.Request, res: express.Response, next: express.NextFunction) {
 130   req.checkParams('id', 'Should have a valid id').notEmpty().isUUID(4)
 131
 132   logger.debug('Checking videosBlacklist parameters', { parameters: req.params })
 133
 134   checkErrors(req, res, function () {
 135     checkVideoExists(req.params.id, res, function () {
 136       checkVideoIsBlacklistable(req, res, next)
 137     })
 138   })
 139 }
 140
 141 // ---------------------------------------------------------------------------
 142
 143 export {
 144   videosAddValidator,
 145   videosUpdateValidator,
 146   videosGetValidator,
 147   videosRemoveValidator,
 148   videosSearchValidator,
 149
 150   videoAbuseReportValidator,
 151
 152   videoRateValidator,
 153
 154   videosBlacklistValidator
 155 }
 156
 157 // ---------------------------------------------------------------------------
 158
 159 function checkVideoExists (id: string, res: express.Response, callback: () => void) {
 160   db.Video.loadAndPopulateAuthorAndPodAndTags(id, function (err, video) {
 161     if (err) {
 162       logger.error('Error in video request validator.', { error: err })
 163       return res.sendStatus(500)
 164     }
 165
 166     if (!video) return res.status(404).send('Video not found')
 167
 168     res.locals.video = video
 169     callback()
 170   })
 171 }
 172
 173 function checkUserCanDeleteVideo (userId: number, res: express.Response, callback: () => void) {
 174   // Retrieve the user who did the request
 175   db.User.loadById(userId, function (err, user) {
 176     if (err) {
 177       logger.error('Error in video request validator.', { error: err })
 178       return res.sendStatus(500)
 179     }
 180
 181     // Check if the user can delete the video
 182     // The user can delete it if s/he is an admin
 183     // Or if s/he is the video's author
 184     if (user.isAdmin() === false) {
 185       if (res.locals.video.isOwned() === false) {
 186         return res.status(403).send('Cannot remove video of another pod')
 187       }
 188
 189       if (res.locals.video.Author.userId !== res.locals.oauth.token.User.id) {
 190         return res.status(403).send('Cannot remove video of another user')
 191       }
 192     }
 193
 194     // If we reach this comment, we can delete the video
 195     callback()
 196   })
 197 }
 198
 199 function checkVideoIsBlacklistable (req: express.Request, res: express.Response, callback: () => void) {
 200   if (res.locals.video.isOwned() === true) {
 201     return res.status(403).send('Cannot blacklist a local video')
 202   }
 203
 204   callback()
 205 }