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   param('accountId').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid account id'),
  30   body('name').custom(isVideoChannelNameValid).withMessage('Should have a valid name'),
  31   body('description').optional().custom(isVideoChannelDescriptionValid).withMessage('Should have a valid description'),
  32   body('support').optional().custom(isVideoChannelSupportValid).withMessage('Should have a valid support text'),
  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   param('accountId').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid account id'),
  46   body('name').optional().custom(isVideoChannelNameValid).withMessage('Should have a valid name'),
  47   body('description').optional().custom(isVideoChannelDescriptionValid).withMessage('Should have a valid description'),
  48   body('support').optional().custom(isVideoChannelSupportValid).withMessage('Should have a valid support text'),
  49
  50   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  51     logger.debug('Checking videoChannelsUpdate parameters', { parameters: req.body })
  52
  53     if (areValidationErrors(req, res)) return
  54     if (!await isAccountIdExist(req.params.accountId, res)) return
  55     if (!await isVideoChannelExist(req.params.id, res)) return
  56
  57     // We need to make additional checks
  58     if (res.locals.videoChannel.Actor.isOwned() === false) {
  59       return res.status(403)
  60         .json({ error: 'Cannot update video channel of another server' })
  61         .end()
  62     }
  63
  64     if (res.locals.videoChannel.Account.userId !== res.locals.oauth.token.User.id) {
  65       return res.status(403)
  66         .json({ error: 'Cannot update video channel of another user' })
  67         .end()
  68     }
  69
  70     return next()
  71   }
  72 ]
  73
  74 const videoChannelsRemoveValidator = [
  75   param('id').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid id'),
  76   param('accountId').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid account id'),
  77
  78   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  79     logger.debug('Checking videoChannelsRemove parameters', { parameters: req.params })
  80
  81     if (areValidationErrors(req, res)) return
  82     if (!await isAccountIdExist(req.params.accountId, res)) return
  83     if (!await isVideoChannelExist(req.params.id, res)) return
  84
  85     // Check if the user who did the request is able to delete the video
  86     if (!checkUserCanDeleteVideoChannel(res.locals.oauth.token.User, res.locals.videoChannel, res)) return
  87     if (!await checkVideoChannelIsNotTheLastOne(res)) return
  88
  89     return next()
  90   }
  91 ]
  92
  93 const videoChannelsGetValidator = [
  94   param('id').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid id'),
  95   param('accountId').optional().custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid account id'),
  96
  97   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  98     logger.debug('Checking videoChannelsGet parameters', { parameters: req.params })
  99
 100     if (areValidationErrors(req, res)) return
 101     // On some routes, accountId is optional (for example in the ActivityPub route)
 102     if (req.params.accountId && !await isAccountIdExist(req.params.accountId, res)) return
 103     if (!await isVideoChannelExist(req.params.id, res)) return
 104
 105     return next()
 106   }
 107 ]
 108
 109 // ---------------------------------------------------------------------------
 110
 111 export {
 112   listVideoAccountChannelsValidator,
 113   videoChannelsAddValidator,
 114   videoChannelsUpdateValidator,
 115   videoChannelsRemoveValidator,
 116   videoChannelsGetValidator
 117 }
 118
 119 // ---------------------------------------------------------------------------
 120
 121 function checkUserCanDeleteVideoChannel (user: UserModel, videoChannel: VideoChannelModel, res: express.Response) {
 122   if (videoChannel.Actor.isOwned() === false) {
 123     res.status(403)
 124               .json({ error: 'Cannot remove video channel of another server.' })
 125               .end()
 126
 127     return false
 128   }
 129
 130   // Check if the user can delete the video channel
 131   // The user can delete it if s/he is an admin
 132   // Or if s/he is the video channel's account
 133   if (user.hasRight(UserRight.REMOVE_ANY_VIDEO_CHANNEL) === false && videoChannel.Account.userId !== user.id) {
 134     res.status(403)
 135               .json({ error: 'Cannot remove video channel of another user' })
 136               .end()
 137
 138     return false
 139   }
 140
 141   return true
 142 }
 143
 144 async function checkVideoChannelIsNotTheLastOne (res: express.Response) {
 145   const count = await VideoChannelModel.countByAccount(res.locals.oauth.token.User.Account.id)
 146
 147   if (count <= 1) {
 148     res.status(409)
 149       .json({ error: 'Cannot remove the last channel of this user' })
 150       .end()
 151
 152     return false
 153   }
 154
 155   return true
 156 }