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, isVideoChannelSupportValid
   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').optional().custom(isVideoChannelDescriptionValid).withMessage('Should have a valid description'),
  31   body('support').optional().custom(isVideoChannelSupportValid).withMessage('Should have a valid support text'),
  32
  33   (req: express.Request, res: express.Response, next: express.NextFunction) => {
  34     logger.debug('Checking videoChannelsAdd parameters', { parameters: req.body })
  35
  36     if (areValidationErrors(req, res)) return
  37
  38     return next()
  39   }
  40 ]
  41
  42 const videoChannelsUpdateValidator = [
  43   param('id').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid id'),
  44   body('name').optional().custom(isVideoChannelNameValid).withMessage('Should have a valid name'),
  45   body('description').optional().custom(isVideoChannelDescriptionValid).withMessage('Should have a valid description'),
  46   body('support').optional().custom(isVideoChannelSupportValid).withMessage('Should have a valid support text'),
  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.Actor.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.oauth.token.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 // ---------------------------------------------------------------------------
 102
 103 export {
 104   listVideoAccountChannelsValidator,
 105   videoChannelsAddValidator,
 106   videoChannelsUpdateValidator,
 107   videoChannelsRemoveValidator,
 108   videoChannelsGetValidator
 109 }
 110
 111 // ---------------------------------------------------------------------------
 112
 113 function checkUserCanDeleteVideoChannel (user: UserModel, videoChannel: VideoChannelModel, res: express.Response) {
 114   if (videoChannel.Actor.isOwned() === false) {
 115     res.status(403)
 116               .json({ error: 'Cannot remove video channel of another server.' })
 117               .end()
 118
 119     return false
 120   }
 121
 122   // Check if the user can delete the video channel
 123   // The user can delete it if s/he is an admin
 124   // Or if s/he is the video channel's account
 125   if (user.hasRight(UserRight.REMOVE_ANY_VIDEO_CHANNEL) === false && videoChannel.Account.userId !== user.id) {
 126     res.status(403)
 127               .json({ error: 'Cannot remove video channel of another user' })
 128               .end()
 129
 130     return false
 131   }
 132
 133   return true
 134 }
 135
 136 async function checkVideoChannelIsNotTheLastOne (res: express.Response) {
 137   const count = await VideoChannelModel.countByAccount(res.locals.oauth.token.User.Account.id)
 138
 139   if (count <= 1) {
 140     res.status(409)
 141       .json({ error: 'Cannot remove the last channel of this user' })
 142       .end()
 143
 144     return false
 145   }
 146
 147   return true
 148 }