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