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 import { AccountModel } from '../../models/account/account'
  15
  16 const listVideoAccountChannelsValidator = [
  17   param('accountId').custom(isIdOrUUIDValid).withMessage('Should have a valid account id'),
  18
  19   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  20     logger.debug('Checking listVideoAccountChannelsValidator parameters', { parameters: req.body })
  21
  22     if (areValidationErrors(req, res)) return
  23     if (!await isAccountIdExist(req.params.accountId, res)) return
  24
  25     return next()
  26   }
  27 ]
  28
  29 const videoChannelsAddValidator = [
  30   param('accountId').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid account id'),
  31   body('name').custom(isVideoChannelNameValid).withMessage('Should have a valid name'),
  32   body('description').optional().custom(isVideoChannelDescriptionValid).withMessage('Should have a valid description'),
  33   body('support').optional().custom(isVideoChannelSupportValid).withMessage('Should have a valid support text'),
  34
  35   (req: express.Request, res: express.Response, next: express.NextFunction) => {
  36     logger.debug('Checking videoChannelsAdd parameters', { parameters: req.body })
  37
  38     if (areValidationErrors(req, res)) return
  39
  40     return next()
  41   }
  42 ]
  43
  44 const videoChannelsUpdateValidator = [
  45   param('id').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid id'),
  46   param('accountId').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid account id'),
  47   body('name').optional().custom(isVideoChannelNameValid).withMessage('Should have a valid name'),
  48   body('description').optional().custom(isVideoChannelDescriptionValid).withMessage('Should have a valid description'),
  49   body('support').optional().custom(isVideoChannelSupportValid).withMessage('Should have a valid support text'),
  50
  51   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  52     logger.debug('Checking videoChannelsUpdate parameters', { parameters: req.body })
  53
  54     if (areValidationErrors(req, res)) return
  55     if (!await isAccountIdExist(req.params.accountId, res)) return
  56     if (!await isVideoChannelExist(req.params.id, res)) return
  57     if (!checkAccountOwnsVideoChannel(res.locals.account, res.locals.videoChannel, res)) return
  58
  59     // We need to make additional checks
  60     if (res.locals.videoChannel.Actor.isOwned() === false) {
  61       return res.status(403)
  62         .json({ error: 'Cannot update video channel of another server' })
  63         .end()
  64     }
  65
  66     if (res.locals.videoChannel.Account.userId !== res.locals.oauth.token.User.id) {
  67       return res.status(403)
  68         .json({ error: 'Cannot update video channel of another user' })
  69         .end()
  70     }
  71
  72     return next()
  73   }
  74 ]
  75
  76 const videoChannelsRemoveValidator = [
  77   param('id').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid id'),
  78   param('accountId').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid account id'),
  79
  80   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  81     logger.debug('Checking videoChannelsRemove parameters', { parameters: req.params })
  82
  83     if (areValidationErrors(req, res)) return
  84     if (!await isAccountIdExist(req.params.accountId, res)) return
  85     if (!await isVideoChannelExist(req.params.id, res)) return
  86
  87     if (!checkAccountOwnsVideoChannel(res.locals.account, res.locals.videoChannel, res)) return
  88     // Check if the user who did the request is able to delete the video
  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 videoChannelsGetValidator = [
  97   param('id').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid id'),
  98   param('accountId').optional().custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid account id'),
  99
 100   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
 101     logger.debug('Checking videoChannelsGet parameters', { parameters: req.params })
 102
 103     if (areValidationErrors(req, res)) return
 104
 105     // On some routes, accountId is optional (for example in the ActivityPub route)
 106     if (req.params.accountId && !await isAccountIdExist(req.params.accountId, res)) return
 107     if (!await isVideoChannelExist(req.params.id, res)) return
 108
 109     if (res.locals.account && !checkAccountOwnsVideoChannel(res.locals.account, res.locals.videoChannel, res)) return
 110
 111     return next()
 112   }
 113 ]
 114
 115 // ---------------------------------------------------------------------------
 116
 117 export {
 118   listVideoAccountChannelsValidator,
 119   videoChannelsAddValidator,
 120   videoChannelsUpdateValidator,
 121   videoChannelsRemoveValidator,
 122   videoChannelsGetValidator
 123 }
 124
 125 // ---------------------------------------------------------------------------
 126
 127 function checkUserCanDeleteVideoChannel (user: UserModel, videoChannel: VideoChannelModel, res: express.Response) {
 128   if (videoChannel.Actor.isOwned() === false) {
 129     res.status(403)
 130               .json({ error: 'Cannot remove video channel of another server.' })
 131               .end()
 132
 133     return false
 134   }
 135
 136   // Check if the user can delete the video channel
 137   // The user can delete it if s/he is an admin
 138   // Or if s/he is the video channel's account
 139   if (user.hasRight(UserRight.REMOVE_ANY_VIDEO_CHANNEL) === false && videoChannel.Account.userId !== user.id) {
 140     res.status(403)
 141               .json({ error: 'Cannot remove video channel of another user' })
 142               .end()
 143
 144     return false
 145   }
 146
 147   return true
 148 }
 149
 150 async function checkVideoChannelIsNotTheLastOne (res: express.Response) {
 151   const count = await VideoChannelModel.countByAccount(res.locals.oauth.token.User.Account.id)
 152
 153   if (count <= 1) {
 154     res.status(409)
 155       .json({ error: 'Cannot remove the last channel of this user' })
 156       .end()
 157
 158     return false
 159   }
 160
 161   return true
 162 }
 163
 164 function checkAccountOwnsVideoChannel (account: AccountModel, videoChannel: VideoChannelModel, res: express.Response) {
 165   if (videoChannel.Account.id !== account.id) {
 166     res.status(400)
 167               .json({ error: 'This account does not own this video channel' })
 168               .end()
 169
 170     return false
 171   }
 172
 173   return true
 174 }