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 listVideoAccountChannelsValidator = [
  20   param('accountName').exists().withMessage('Should have a valid account name'),
  21
  22   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  23     logger.debug('Checking listVideoAccountChannelsValidator parameters', { parameters: req.body })
  24
  25     if (areValidationErrors(req, res)) return
  26     if (!await isAccountNameWithHostExist(req.params.accountName, res)) return
  27
  28     return next()
  29   }
  30 ]
  31
  32 const videoChannelsAddValidator = [
  33   body('name').custom(isActorPreferredUsernameValid).withMessage('Should have a valid channel name'),
  34   body('displayName').custom(isVideoChannelNameValid).withMessage('Should have a valid display name'),
  35   body('description').optional().custom(isVideoChannelDescriptionValid).withMessage('Should have a valid description'),
  36   body('support').optional().custom(isVideoChannelSupportValid).withMessage('Should have a valid support text'),
  37
  38   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  39     logger.debug('Checking videoChannelsAdd parameters', { parameters: req.body })
  40
  41     if (areValidationErrors(req, res)) return
  42
  43     const actor = await ActorModel.loadLocalByName(req.body.name)
  44     if (actor) {
  45       res.status(409)
  46          .send({ error: 'Another actor (account/channel) with this name on this instance already exists or has already existed.' })
  47          .end()
  48       return false
  49     }
  50
  51     return next()
  52   }
  53 ]
  54
  55 const videoChannelsUpdateValidator = [
  56   param('nameWithHost').exists().withMessage('Should have an video channel name with host'),
  57   body('displayName').optional().custom(isVideoChannelNameValid).withMessage('Should have a valid display name'),
  58   body('description').optional().custom(isVideoChannelDescriptionValid).withMessage('Should have a valid description'),
  59   body('support').optional().custom(isVideoChannelSupportValid).withMessage('Should have a valid support text'),
  60
  61   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  62     logger.debug('Checking videoChannelsUpdate parameters', { parameters: req.body })
  63
  64     if (areValidationErrors(req, res)) return
  65     if (!await isVideoChannelNameWithHostExist(req.params.nameWithHost, res)) return
  66
  67     // We need to make additional checks
  68     if (res.locals.videoChannel.Actor.isOwned() === false) {
  69       return res.status(403)
  70         .json({ error: 'Cannot update video channel of another server' })
  71         .end()
  72     }
  73
  74     if (res.locals.videoChannel.Account.userId !== res.locals.oauth.token.User.id) {
  75       return res.status(403)
  76         .json({ error: 'Cannot update video channel of another user' })
  77         .end()
  78     }
  79
  80     return next()
  81   }
  82 ]
  83
  84 const videoChannelsRemoveValidator = [
  85   param('nameWithHost').exists().withMessage('Should have an video channel name with host'),
  86
  87   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
  88     logger.debug('Checking videoChannelsRemove parameters', { parameters: req.params })
  89
  90     if (areValidationErrors(req, res)) return
  91     if (!await isVideoChannelNameWithHostExist(req.params.nameWithHost, res)) return
  92
  93     if (!checkUserCanDeleteVideoChannel(res.locals.oauth.token.User, res.locals.videoChannel, res)) return
  94     if (!await checkVideoChannelIsNotTheLastOne(res)) return
  95
  96     return next()
  97   }
  98 ]
  99
 100 const videoChannelsNameWithHostValidator = [
 101   param('nameWithHost').exists().withMessage('Should have an video channel name with host'),
 102
 103   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
 104     logger.debug('Checking videoChannelsNameWithHostValidator parameters', { parameters: req.params })
 105
 106     if (areValidationErrors(req, res)) return
 107
 108     if (!await isVideoChannelNameWithHostExist(req.params.nameWithHost, res)) return
 109
 110     return next()
 111   }
 112 ]
 113
 114 const localVideoChannelValidator = [
 115   param('name').custom(isVideoChannelNameValid).withMessage('Should have a valid video channel name'),
 116
 117   async (req: express.Request, res: express.Response, next: express.NextFunction) => {
 118     logger.debug('Checking localVideoChannelValidator parameters', { parameters: req.params })
 119
 120     if (areValidationErrors(req, res)) return
 121     if (!await isLocalVideoChannelNameExist(req.params.name, res)) return
 122
 123     return next()
 124   }
 125 ]
 126
 127 // ---------------------------------------------------------------------------
 128
 129 export {
 130   listVideoAccountChannelsValidator,
 131   videoChannelsAddValidator,
 132   videoChannelsUpdateValidator,
 133   videoChannelsRemoveValidator,
 134   videoChannelsNameWithHostValidator,
 135   localVideoChannelValidator
 136 }
 137
 138 // ---------------------------------------------------------------------------
 139
 140 function checkUserCanDeleteVideoChannel (user: UserModel, videoChannel: VideoChannelModel, res: express.Response) {
 141   if (videoChannel.Actor.isOwned() === false) {
 142     res.status(403)
 143               .json({ error: 'Cannot remove video channel of another server.' })
 144               .end()
 145
 146     return false
 147   }
 148
 149   // Check if the user can delete the video channel
 150   // The user can delete it if s/he is an admin
 151   // Or if s/he is the video channel's account
 152   if (user.hasRight(UserRight.REMOVE_ANY_VIDEO_CHANNEL) === false && videoChannel.Account.userId !== user.id) {
 153     res.status(403)
 154               .json({ error: 'Cannot remove video channel of another user' })
 155               .end()
 156
 157     return false
 158   }
 159
 160   return true
 161 }
 162
 163 async function checkVideoChannelIsNotTheLastOne (res: express.Response) {
 164   const count = await VideoChannelModel.countByAccount(res.locals.oauth.token.User.Account.id)
 165
 166   if (count <= 1) {
 167     res.status(409)
 168       .json({ error: 'Cannot remove the last channel of this user' })
 169       .end()
 170
 171     return false
 172   }
 173
 174   return true
 175 }