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

   1 import * as express from 'express'
   2 import { body, param, query } from 'express-validator'
   3 import { UserRight } from '../../../../shared'
   4 import {
   5   isVideoChannelDescriptionValid,
   6   isVideoChannelNameValid,
   7   isVideoChannelSupportValid
   8 } from '../../../helpers/custom-validators/video-channels'
   9 import { logger } from '../../../helpers/logger'
  10 import { VideoChannelModel } from '../../../models/video/video-channel'
  11 import { areValidationErrors } from '../utils'
  12 import { isActorPreferredUsernameValid } from '../../../helpers/custom-validators/activitypub/actor'
  13 import { ActorModel } from '../../../models/activitypub/actor'
  14 import { isBooleanValid } from '../../../helpers/custom-validators/misc'
  15 import { doesLocalVideoChannelNameExist, doesVideoChannelNameWithHostExist } from '../../../helpers/middlewares'
  16 import { MChannelAccountDefault, MUser } from '@server/typings/models'
  17 import { VIDEO_CHANNELS } from '@server/initializers/constants'
  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     const count = await VideoChannelModel.countByAccount(res.locals.oauth.token.User.Account.id)
  39     if (count >= VIDEO_CHANNELS.MAX_PER_USER) {
  40       res.status(400)
  41         .send({ error: `You cannot create more than ${VIDEO_CHANNELS.MAX_PER_USER} channels` })
  42         .end()
  43       return false
  44     }
  45
  46     return next()
  47   }
  48 ]
  49
  50 const videoChannelsUpdateValidator = [
  51   param('nameWithHost').exists().withMessage('Should have an video channel name with host'),
  52   body('displayName')
  53     .optional()
  54     .custom(isVideoChannelNameValid).withMessage('Should have a valid display name'),
  55   body('description')
  56     .optional()
  57     .custom(isVideoChannelDescriptionValid).withMessage('Should have a valid description'),
  58   body('support')
  59     .optional()
  60     .custom(isVideoChannelSupportValid).withMessage('Should have a valid support text'),
  61   body('bulkVideosSupportUpdate')
  62     .optional()
  63     .custom(isBooleanValid).withMessage('Should have a valid bulkVideosSupportUpdate boolean field'),
  64
  65   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  66     logger.debug('Checking videoChannelsUpdate parameters', { parameters: req.body })
  67
  68     if (areValidationErrors(req, res)) return
  69     if (!await doesVideoChannelNameWithHostExist(req.params.nameWithHost, res)) return
  70
  71     // We need to make additional checks
  72     if (res.locals.videoChannel.Actor.isOwned() === false) {
  73       return res.status(403)
  74         .json({ error: 'Cannot update video channel of another server' })
  75         .end()
  76     }
  77
  78     if (res.locals.videoChannel.Account.userId !== res.locals.oauth.token.User.id) {
  79       return res.status(403)
  80         .json({ error: 'Cannot update video channel of another user' })
  81         .end()
  82     }
  83
  84     return next()
  85   }
  86 ]
  87
  88 const videoChannelsRemoveValidator = [
  89   param('nameWithHost').exists().withMessage('Should have an video channel name with host'),
  90
  91   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  92     logger.debug('Checking videoChannelsRemove parameters', { parameters: req.params })
  93
  94     if (areValidationErrors(req, res)) return
  95     if (!await doesVideoChannelNameWithHostExist(req.params.nameWithHost, res)) return
  96
  97     if (!checkUserCanDeleteVideoChannel(res.locals.oauth.token.User, res.locals.videoChannel, res)) return
  98     if (!await checkVideoChannelIsNotTheLastOne(res)) return
  99
 100     return next()
 101   }
 102 ]
 103
 104 const videoChannelsNameWithHostValidator = [
 105   param('nameWithHost').exists().withMessage('Should have an video channel name with host'),
 106
 107   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
 108     logger.debug('Checking videoChannelsNameWithHostValidator parameters', { parameters: req.params })
 109
 110     if (areValidationErrors(req, res)) return
 111
 112     if (!await doesVideoChannelNameWithHostExist(req.params.nameWithHost, res)) return
 113
 114     return next()
 115   }
 116 ]
 117
 118 const localVideoChannelValidator = [
 119   param('name').custom(isVideoChannelNameValid).withMessage('Should have a valid video channel name'),
 120
 121   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
 122     logger.debug('Checking localVideoChannelValidator parameters', { parameters: req.params })
 123
 124     if (areValidationErrors(req, res)) return
 125     if (!await doesLocalVideoChannelNameExist(req.params.name, res)) return
 126
 127     return next()
 128   }
 129 ]
 130
 131 const videoChannelStatsValidator = [
 132   query('withStats').optional().isBoolean().withMessage('Should have a valid stats flag'),
 133
 134   (req: express.Request, res: express.Response, next: express.NextFunction) => {
 135     if (areValidationErrors(req, res)) return
 136     return next()
 137   }
 138 ]
 139
 140 // ---------------------------------------------------------------------------
 141
 142 export {
 143   videoChannelsAddValidator,
 144   videoChannelsUpdateValidator,
 145   videoChannelsRemoveValidator,
 146   videoChannelsNameWithHostValidator,
 147   localVideoChannelValidator,
 148   videoChannelStatsValidator
 149 }
 150
 151 // ---------------------------------------------------------------------------
 152
 153 function checkUserCanDeleteVideoChannel (user: MUser, videoChannel: MChannelAccountDefault, res: express.Response) {
 154   if (videoChannel.Actor.isOwned() === false) {
 155     res.status(403)
 156               .json({ error: 'Cannot remove video channel of another server.' })
 157               .end()
 158
 159     return false
 160   }
 161
 162   // Check if the user can delete the video channel
 163   // The user can delete it if s/he is an admin
 164   // Or if s/he is the video channel's account
 165   if (user.hasRight(UserRight.REMOVE_ANY_VIDEO_CHANNEL) === false && videoChannel.Account.userId !== user.id) {
 166     res.status(403)
 167               .json({ error: 'Cannot remove video channel of another user' })
 168               .end()
 169
 170     return false
 171   }
 172
 173   return true
 174 }
 175
 176 async function checkVideoChannelIsNotTheLastOne (res: express.Response) {
 177   const count = await VideoChannelModel.countByAccount(res.locals.oauth.token.User.Account.id)
 178
 179   if (count <= 1) {
 180     res.status(409)
 181       .json({ error: 'Cannot remove the last channel of this user' })
 182       .end()
 183
 184     return false
 185   }
 186
 187   return true
 188 }