server/middlewares/validators/videos/video-channels.ts

   1 import * as express from 'express'
   2 import { body, param } from 'express-validator/check'
   3 import { UserRight } from '../../../../shared'
   4 import {
   5   doesLocalVideoChannelNameExist,
   6   doesVideoChannelNameWithHostExist,
   7   isVideoChannelDescriptionValid,
   8   isVideoChannelNameValid,
   9   isVideoChannelSupportValid
  10 } from '../../../helpers/custom-validators/video-channels'
  11 import { logger } from '../../../helpers/logger'
  12 import { UserModel } from '../../../models/account/user'
  13 import { VideoChannelModel } from '../../../models/video/video-channel'
  14 import { areValidationErrors } from '../utils'
  15 import { isActorPreferredUsernameValid } from '../../../helpers/custom-validators/activitypub/actor'
  16 import { ActorModel } from '../../../models/activitypub/actor'
  17 import { isBooleanValid } from '../../../helpers/custom-validators/misc'
  18
  19 const videoChannelsAddValidator = [
  20   body('name').custom(isActorPreferredUsernameValid).withMessage('Should have a valid channel name'),
  21   body('displayName').custom(isVideoChannelNameValid).withMessage('Should have a valid display name'),
  22   body('description').optional().custom(isVideoChannelDescriptionValid).withMessage('Should have a valid description'),
  23   body('support').optional().custom(isVideoChannelSupportValid).withMessage('Should have a valid support text'),
  24
  25   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  26     logger.debug('Checking videoChannelsAdd parameters', { parameters: req.body })
  27
  28     if (areValidationErrors(req, res)) return
  29
  30     const actor = await ActorModel.loadLocalByName(req.body.name)
  31     if (actor) {
  32       res.status(409)
  33          .send({ error: 'Another actor (account/channel) with this name on this instance already exists or has already existed.' })
  34          .end()
  35       return false
  36     }
  37
  38     return next()
  39   }
  40 ]
  41
  42 const videoChannelsUpdateValidator = [
  43   param('nameWithHost').exists().withMessage('Should have an video channel name with host'),
  44   body('displayName')
  45     .optional()
  46     .custom(isVideoChannelNameValid).withMessage('Should have a valid display name'),
  47   body('description')
  48     .optional()
  49     .custom(isVideoChannelDescriptionValid).withMessage('Should have a valid description'),
  50   body('support')
  51     .optional()
  52     .custom(isVideoChannelSupportValid).withMessage('Should have a valid support text'),
  53   body('bulkVideosSupportUpdate')
  54     .optional()
  55     .custom(isBooleanValid).withMessage('Should have a valid bulkVideosSupportUpdate boolean field'),
  56
  57   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  58     logger.debug('Checking videoChannelsUpdate parameters', { parameters: req.body })
  59
  60     if (areValidationErrors(req, res)) return
  61     if (!await doesVideoChannelNameWithHostExist(req.params.nameWithHost, res)) return
  62
  63     // We need to make additional checks
  64     if (res.locals.videoChannel.Actor.isOwned() === false) {
  65       return res.status(403)
  66         .json({ error: 'Cannot update video channel of another server' })
  67         .end()
  68     }
  69
  70     if (res.locals.videoChannel.Account.userId !== res.locals.oauth.token.User.id) {
  71       return res.status(403)
  72         .json({ error: 'Cannot update video channel of another user' })
  73         .end()
  74     }
  75
  76     return next()
  77   }
  78 ]
  79
  80 const videoChannelsRemoveValidator = [
  81   param('nameWithHost').exists().withMessage('Should have an video channel name with host'),
  82
  83   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  84     logger.debug('Checking videoChannelsRemove parameters', { parameters: req.params })
  85
  86     if (areValidationErrors(req, res)) return
  87     if (!await doesVideoChannelNameWithHostExist(req.params.nameWithHost, res)) return
  88
  89     if (!checkUserCanDeleteVideoChannel(res.locals.oauth.token.User, res.locals.videoChannel, res)) return
  90     if (!await checkVideoChannelIsNotTheLastOne(res)) return
  91
  92     return next()
  93   }
  94 ]
  95
  96 const videoChannelsNameWithHostValidator = [
  97   param('nameWithHost').exists().withMessage('Should have an video channel name with host'),
  98
  99   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
 100     logger.debug('Checking videoChannelsNameWithHostValidator parameters', { parameters: req.params })
 101
 102     if (areValidationErrors(req, res)) return
 103
 104     if (!await doesVideoChannelNameWithHostExist(req.params.nameWithHost, res)) return
 105
 106     return next()
 107   }
 108 ]
 109
 110 const localVideoChannelValidator = [
 111   param('name').custom(isVideoChannelNameValid).withMessage('Should have a valid video channel name'),
 112
 113   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
 114     logger.debug('Checking localVideoChannelValidator parameters', { parameters: req.params })
 115
 116     if (areValidationErrors(req, res)) return
 117     if (!await doesLocalVideoChannelNameExist(req.params.name, res)) return
 118
 119     return next()
 120   }
 121 ]
 122
 123 // ---------------------------------------------------------------------------
 124
 125 export {
 126   videoChannelsAddValidator,
 127   videoChannelsUpdateValidator,
 128   videoChannelsRemoveValidator,
 129   videoChannelsNameWithHostValidator,
 130   localVideoChannelValidator
 131 }
 132
 133 // ---------------------------------------------------------------------------
 134
 135 function checkUserCanDeleteVideoChannel (user: UserModel, videoChannel: VideoChannelModel, res: express.Response) {
 136   if (videoChannel.Actor.isOwned() === false) {
 137     res.status(403)
 138               .json({ error: 'Cannot remove video channel of another server.' })
 139               .end()
 140
 141     return false
 142   }
 143
 144   // Check if the user can delete the video channel
 145   // The user can delete it if s/he is an admin
 146   // Or if s/he is the video channel's account
 147   if (user.hasRight(UserRight.REMOVE_ANY_VIDEO_CHANNEL) === false && videoChannel.Account.userId !== user.id) {
 148     res.status(403)
 149               .json({ error: 'Cannot remove video channel of another user' })
 150               .end()
 151
 152     return false
 153   }
 154
 155   return true
 156 }
 157
 158 async function checkVideoChannelIsNotTheLastOne (res: express.Response) {
 159   const count = await VideoChannelModel.countByAccount(res.locals.oauth.token.User.Account.id)
 160
 161   if (count <= 1) {
 162     res.status(409)
 163       .json({ error: 'Cannot remove the last channel of this user' })
 164       .end()
 165
 166     return false
 167   }
 168
 169   return true
 170 }