server/middlewares/validators/video-channels.ts

   1 import * as express from 'express'
   2 import { body, param } from 'express-validator/check'
   3 import { UserRight } from '../../../shared'
   4 import { logger } from '../../helpers'
   5 import { isAccountIdExist } from '../../helpers/custom-validators/accounts'
   6 import { isIdOrUUIDValid, isIdValid } from '../../helpers/custom-validators/misc'
   7 import {
   8   isVideoChannelDescriptionValid,
   9   isVideoChannelExist,
  10   isVideoChannelNameValid
  11 } from '../../helpers/custom-validators/video-channels'
  12 import { UserModel } from '../../models/account/user'
  13 import { VideoChannelModel } from '../../models/video/video-channel'
  14 import { VideoChannelShareModel } from '../../models/video/video-channel-share'
  15 import { areValidationErrors } from './utils'
  16
  17 const listVideoAccountChannelsValidator = [
  18   param('accountId').custom(isIdOrUUIDValid).withMessage('Should have a valid account id'),
  19
  20   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  21     logger.debug('Checking listVideoAccountChannelsValidator parameters', { parameters: req.body })
  22
  23     if (areValidationErrors(req, res)) return
  24     if (!await isAccountIdExist(req.params.accountId, res)) return
  25
  26     return next()
  27   }
  28 ]
  29
  30 const videoChannelsAddValidator = [
  31   body('name').custom(isVideoChannelNameValid).withMessage('Should have a valid name'),
  32   body('description').custom(isVideoChannelDescriptionValid).withMessage('Should have a valid description'),
  33
  34   (req: express.Request, res: express.Response, next: express.NextFunction) => {
  35     logger.debug('Checking videoChannelsAdd parameters', { parameters: req.body })
  36
  37     if (areValidationErrors(req, res)) return
  38
  39     return next()
  40   }
  41 ]
  42
  43 const videoChannelsUpdateValidator = [
  44   param('id').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid id'),
  45   body('name').optional().custom(isVideoChannelNameValid).withMessage('Should have a valid name'),
  46   body('description').optional().custom(isVideoChannelDescriptionValid).withMessage('Should have a valid description'),
  47
  48   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  49     logger.debug('Checking videoChannelsUpdate parameters', { parameters: req.body })
  50
  51     if (areValidationErrors(req, res)) return
  52     if (!await isVideoChannelExist(req.params.id, res)) return
  53
  54     // We need to make additional checks
  55     if (res.locals.videoChannel.isOwned() === false) {
  56       return res.status(403)
  57         .json({ error: 'Cannot update video channel of another server' })
  58         .end()
  59     }
  60
  61     if (res.locals.videoChannel.Account.userId !== res.locals.oauth.token.User.id) {
  62       return res.status(403)
  63         .json({ error: 'Cannot update video channel of another user' })
  64         .end()
  65     }
  66
  67     return next()
  68   }
  69 ]
  70
  71 const videoChannelsRemoveValidator = [
  72   param('id').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid id'),
  73
  74   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  75     logger.debug('Checking videoChannelsRemove parameters', { parameters: req.params })
  76
  77     if (areValidationErrors(req, res)) return
  78     if (!await isVideoChannelExist(req.params.id, res)) return
  79
  80     // Check if the user who did the request is able to delete the video
  81     if (!checkUserCanDeleteVideoChannel(res.locals.user, res.locals.videoChannel, res)) return
  82     if (!await checkVideoChannelIsNotTheLastOne(res)) return
  83
  84     return next()
  85   }
  86 ]
  87
  88 const videoChannelsGetValidator = [
  89   param('id').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid id'),
  90
  91   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  92     logger.debug('Checking videoChannelsGet parameters', { parameters: req.params })
  93
  94     if (areValidationErrors(req, res)) return
  95     if (!await isVideoChannelExist(req.params.id, res)) return
  96
  97     return next()
  98   }
  99 ]
 100
 101 const videoChannelsShareValidator = [
 102   param('id').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid id'),
 103   param('accountId').custom(isIdValid).not().isEmpty().withMessage('Should have a valid account id'),
 104
 105   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
 106     logger.debug('Checking videoChannelShare parameters', { parameters: req.params })
 107
 108     if (areValidationErrors(req, res)) return
 109     if (!await isVideoChannelExist(req.params.id, res)) return
 110
 111     const share = await VideoChannelShareModel.load(res.locals.video.id, req.params.accountId, undefined)
 112     if (!share) {
 113       return res.status(404)
 114         .end()
 115     }
 116
 117     res.locals.videoChannelShare = share
 118
 119     return next()
 120   }
 121 ]
 122
 123 // ---------------------------------------------------------------------------
 124
 125 export {
 126   listVideoAccountChannelsValidator,
 127   videoChannelsAddValidator,
 128   videoChannelsUpdateValidator,
 129   videoChannelsRemoveValidator,
 130   videoChannelsGetValidator,
 131   videoChannelsShareValidator
 132 }
 133
 134 // ---------------------------------------------------------------------------
 135
 136 function checkUserCanDeleteVideoChannel (user: UserModel, videoChannel: VideoChannelModel, res: express.Response) {
 137   // Retrieve the user who did the request
 138   if (videoChannel.isOwned() === false) {
 139     res.status(403)
 140               .json({ error: 'Cannot remove video channel of another server.' })
 141               .end()
 142
 143     return false
 144   }
 145
 146   // Check if the user can delete the video channel
 147   // The user can delete it if s/he is an admin
 148   // Or if s/he is the video channel's account
 149   if (user.hasRight(UserRight.REMOVE_ANY_VIDEO_CHANNEL) === false && videoChannel.Account.userId !== user.id) {
 150     res.status(403)
 151               .json({ error: 'Cannot remove video channel of another user' })
 152               .end()
 153
 154     return false
 155   }
 156
 157   return true
 158 }
 159
 160 async function checkVideoChannelIsNotTheLastOne (res: express.Response) {
 161   const count = await VideoChannelModel.countByAccount(res.locals.oauth.token.User.Account.id)
 162
 163   if (count <= 1) {
 164     res.status(409)
 165       .json({ error: 'Cannot remove the last channel of this user' })
 166       .end()
 167
 168     return false
 169   }
 170
 171   return true
 172 }