server/middlewares/validators/videos/video-channels.ts

   1 import * as express from 'express'
   2 import { body, param } from 'express-validator/check'
   3 import { UserRight } from '../../../../shared'
   4 import { isAccountNameWithHostExist } from '../../../helpers/custom-validators/accounts'
   5 import {
   6   isLocalVideoChannelNameExist,
   7   isVideoChannelDescriptionValid,
   8   isVideoChannelNameValid,
   9   isVideoChannelNameWithHostExist,
  10   isVideoChannelSupportValid
  11 } from '../../../helpers/custom-validators/video-channels'
  12 import { logger } from '../../../helpers/logger'
  13 import { UserModel } from '../../../models/account/user'
  14 import { VideoChannelModel } from '../../../models/video/video-channel'
  15 import { areValidationErrors } from '../utils'
  16 import { isActorPreferredUsernameValid } from '../../../helpers/custom-validators/activitypub/actor'
  17 import { ActorModel } from '../../../models/activitypub/actor'
  18
  19 const videoChannelsAddValidator = [
  20   body('name').custom(isActorPreferredUsernameValid).withMessage('Should have a valid channel name'),
  21   body('displayName').custom(isVideoChannelNameValid).withMessage('Should have a valid display name'),
  22   body('description').optional().custom(isVideoChannelDescriptionValid).withMessage('Should have a valid description'),
  23   body('support').optional().custom(isVideoChannelSupportValid).withMessage('Should have a valid support text'),
  24
  25   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  26     logger.debug('Checking videoChannelsAdd parameters', { parameters: req.body })
  27
  28     if (areValidationErrors(req, res)) return
  29
  30     const actor = await ActorModel.loadLocalByName(req.body.name)
  31     if (actor) {
  32       res.status(409)
  33          .send({ error: 'Another actor (account/channel) with this name on this instance already exists or has already existed.' })
  34          .end()
  35       return false
  36     }
  37
  38     return next()
  39   }
  40 ]
  41
  42 const videoChannelsUpdateValidator = [
  43   param('nameWithHost').exists().withMessage('Should have an video channel name with host'),
  44   body('displayName').optional().custom(isVideoChannelNameValid).withMessage('Should have a valid display 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 isVideoChannelNameWithHostExist(req.params.nameWithHost, 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('nameWithHost').exists().withMessage('Should have an video channel name with host'),
  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 isVideoChannelNameWithHostExist(req.params.nameWithHost, res)) return
  79
  80     if (!checkUserCanDeleteVideoChannel(res.locals.oauth.token.User, res.locals.videoChannel, res)) return
  81     if (!await checkVideoChannelIsNotTheLastOne(res)) return
  82
  83     return next()
  84   }
  85 ]
  86
  87 const videoChannelsNameWithHostValidator = [
  88   param('nameWithHost').exists().withMessage('Should have an video channel name with host'),
  89
  90   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  91     logger.debug('Checking videoChannelsNameWithHostValidator parameters', { parameters: req.params })
  92
  93     if (areValidationErrors(req, res)) return
  94
  95     if (!await isVideoChannelNameWithHostExist(req.params.nameWithHost, res)) return
  96
  97     return next()
  98   }
  99 ]
 100
 101 const localVideoChannelValidator = [
 102   param('name').custom(isVideoChannelNameValid).withMessage('Should have a valid video channel name'),
 103
 104   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
 105     logger.debug('Checking localVideoChannelValidator parameters', { parameters: req.params })
 106
 107     if (areValidationErrors(req, res)) return
 108     if (!await isLocalVideoChannelNameExist(req.params.name, res)) return
 109
 110     return next()
 111   }
 112 ]
 113
 114 // ---------------------------------------------------------------------------
 115
 116 export {
 117   videoChannelsAddValidator,
 118   videoChannelsUpdateValidator,
 119   videoChannelsRemoveValidator,
 120   videoChannelsNameWithHostValidator,
 121   localVideoChannelValidator
 122 }
 123
 124 // ---------------------------------------------------------------------------
 125
 126 function checkUserCanDeleteVideoChannel (user: UserModel, videoChannel: VideoChannelModel, res: express.Response) {
 127   if (videoChannel.Actor.isOwned() === false) {
 128     res.status(403)
 129               .json({ error: 'Cannot remove video channel of another server.' })
 130               .end()
 131
 132     return false
 133   }
 134
 135   // Check if the user can delete the video channel
 136   // The user can delete it if s/he is an admin
 137   // Or if s/he is the video channel's account
 138   if (user.hasRight(UserRight.REMOVE_ANY_VIDEO_CHANNEL) === false && videoChannel.Account.userId !== user.id) {
 139     res.status(403)
 140               .json({ error: 'Cannot remove video channel of another user' })
 141               .end()
 142
 143     return false
 144   }
 145
 146   return true
 147 }
 148
 149 async function checkVideoChannelIsNotTheLastOne (res: express.Response) {
 150   const count = await VideoChannelModel.countByAccount(res.locals.oauth.token.User.Account.id)
 151
 152   if (count <= 1) {
 153     res.status(409)
 154       .json({ error: 'Cannot remove the last channel of this user' })
 155       .end()
 156
 157     return false
 158   }
 159
 160   return true
 161 }