Refractor validators

1 files changed, 67 insertions, 62 deletions

diff --git a/server/middlewares/validators/video-channels.ts b/server/middlewares/validators/video-channels.ts
index f30fbf0dc..4683c91e1 100644
--- a/server/middlewares/validators/video-channels.ts
+++ b/server/middlewares/validators/video-channels.ts
@@ -1,29 +1,30 @@
 import * as express from 'express'
 import { body, param } from 'express-validator/check'
 import { UserRight } from '../../../shared'
-import { checkAccountIdExists } from '../../helpers/custom-validators/accounts'
 import { isIdValid } from '../../helpers/custom-validators/misc'
 import {
-  checkVideoChannelExists,
   isVideoChannelDescriptionValid,
-  isVideoChannelExistsPromise,
+  isVideoChannelExist,
   isVideoChannelNameValid
 } from '../../helpers/custom-validators/video-channels'
 import { isIdOrUUIDValid } from '../../helpers/index'
 import { logger } from '../../helpers/logger'
 import { database as db } from '../../initializers'
 import { UserInstance } from '../../models'
-import { areValidationErrors, checkErrors } from './utils'
+import { areValidationErrors } from './utils'
+import { isAccountIdExist } from '../../helpers/custom-validators/accounts'
+import { VideoChannelInstance } from '../../models/video/video-channel-interface'
 
 const listVideoAccountChannelsValidator = [
   param('accountId').custom(isIdOrUUIDValid).withMessage('Should have a valid account id'),
 
-  (req: express.Request, res: express.Response, next: express.NextFunction) => {
+  async (req: express.Request, res: express.Response, next: express.NextFunction) => {
     logger.debug('Checking listVideoAccountChannelsValidator parameters', { parameters: req.body })
 
-    checkErrors(req, res, () => {
-      checkAccountIdExists(req.params.accountId, res, next)
-    })
+    if (areValidationErrors(req, res)) return
+    if (!await isAccountIdExist(req.params.accountId, res)) return
+
+    return next()
   }
 ]
 
@@ -34,7 +35,9 @@ const videoChannelsAddValidator = [
   (req: express.Request, res: express.Response, next: express.NextFunction) => {
     logger.debug('Checking videoChannelsAdd parameters', { parameters: req.body })
 
-    checkErrors(req, res, next)
+    if (areValidationErrors(req, res)) return
+
+    return next()
   }
 ]
 
@@ -43,56 +46,56 @@ const videoChannelsUpdateValidator = [
   body('name').optional().custom(isVideoChannelNameValid).withMessage('Should have a valid name'),
   body('description').optional().custom(isVideoChannelDescriptionValid).withMessage('Should have a valid description'),
 
-  (req: express.Request, res: express.Response, next: express.NextFunction) => {
+  async (req: express.Request, res: express.Response, next: express.NextFunction) => {
     logger.debug('Checking videoChannelsUpdate parameters', { parameters: req.body })
 
-    checkErrors(req, res, () => {
-      checkVideoChannelExists(req.params.id, res, () => {
-        // We need to make additional checks
-        if (res.locals.videoChannel.isOwned() === false) {
-          return res.status(403)
-            .json({ error: 'Cannot update video channel of another server' })
-            .end()
-        }
-
-        if (res.locals.videoChannel.Account.userId !== res.locals.oauth.token.User.id) {
-          return res.status(403)
-            .json({ error: 'Cannot update video channel of another user' })
-            .end()
-        }
-
-        next()
-      })
-    })
+    if (areValidationErrors(req, res)) return
+    if (!await isVideoChannelExist(req.params.id, res)) return
+
+    // We need to make additional checks
+    if (res.locals.videoChannel.isOwned() === false) {
+      return res.status(403)
+        .json({ error: 'Cannot update video channel of another server' })
+        .end()
+    }
+
+    if (res.locals.videoChannel.Account.userId !== res.locals.oauth.token.User.id) {
+      return res.status(403)
+        .json({ error: 'Cannot update video channel of another user' })
+        .end()
+    }
+
+    return next()
   }
 ]
 
 const videoChannelsRemoveValidator = [
   param('id').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid id'),
 
-  (req: express.Request, res: express.Response, next: express.NextFunction) => {
+  async (req: express.Request, res: express.Response, next: express.NextFunction) => {
     logger.debug('Checking videoChannelsRemove parameters', { parameters: req.params })
 
-    checkErrors(req, res, () => {
-      checkVideoChannelExists(req.params.id, res, () => {
-        // Check if the user who did the request is able to delete the video
-        checkUserCanDeleteVideoChannel(res, () => {
-          checkVideoChannelIsNotTheLastOne(res, next)
-        })
-      })
-    })
+    if (areValidationErrors(req, res)) return
+    if (!await isVideoChannelExist(req.params.id, res)) return
+
+    // Check if the user who did the request is able to delete the video
+    if (!checkUserCanDeleteVideoChannel(res.locals.user, res.locals.videoChannel, res)) return
+    if (!await checkVideoChannelIsNotTheLastOne(res)) return
+
+    return next()
   }
 ]
 
 const videoChannelsGetValidator = [
   param('id').custom(isIdOrUUIDValid).not().isEmpty().withMessage('Should have a valid id'),
 
-  (req: express.Request, res: express.Response, next: express.NextFunction) => {
+  async (req: express.Request, res: express.Response, next: express.NextFunction) => {
     logger.debug('Checking videoChannelsGet parameters', { parameters: req.params })
 
-    checkErrors(req, res, () => {
-      checkVideoChannelExists(req.params.id, res, next)
-    })
+    if (areValidationErrors(req, res)) return
+    if (!await isVideoChannelExist(req.params.id, res)) return
+
+    return next()
   }
 ]
 
@@ -104,7 +107,7 @@ const videoChannelsShareValidator = [
     logger.debug('Checking videoChannelShare parameters', { parameters: req.params })
 
     if (areValidationErrors(req, res)) return
-    if (!await isVideoChannelExistsPromise(req.params.id, res)) return
+    if (!await isVideoChannelExist(req.params.id, res)) return
 
     const share = await db.VideoChannelShare.load(res.locals.video.id, req.params.accountId)
     if (!share) {
@@ -131,38 +134,40 @@ export {
 
 // ---------------------------------------------------------------------------
 
-function checkUserCanDeleteVideoChannel (res: express.Response, callback: () => void) {
-  const user: UserInstance = res.locals.oauth.token.User
-
+function checkUserCanDeleteVideoChannel (user: UserInstance, videoChannel: VideoChannelInstance, res: express.Response) {
   // Retrieve the user who did the request
-  if (res.locals.videoChannel.isOwned() === false) {
-    return res.status(403)
+  if (videoChannel.isOwned() === false) {
+    res.status(403)
               .json({ error: 'Cannot remove video channel of another server.' })
               .end()
+
+    return false
   }
 
   // Check if the user can delete the video channel
   // The user can delete it if s/he is an admin
   // Or if s/he is the video channel's account
-  if (user.hasRight(UserRight.REMOVE_ANY_VIDEO_CHANNEL) === false && res.locals.videoChannel.Account.userId !== user.id) {
-    return res.status(403)
+  if (user.hasRight(UserRight.REMOVE_ANY_VIDEO_CHANNEL) === false && videoChannel.Account.userId !== user.id) {
+    res.status(403)
               .json({ error: 'Cannot remove video channel of another user' })
               .end()
+
+    return false
   }
 
-  // If we reach this comment, we can delete the video
-  callback()
+  return true
 }
 
-function checkVideoChannelIsNotTheLastOne (res: express.Response, callback: () => void) {
-  db.VideoChannel.countByAccount(res.locals.oauth.token.User.Account.id)
-    .then(count => {
-      if (count <= 1) {
-        return res.status(409)
-          .json({ error: 'Cannot remove the last channel of this user' })
-          .end()
-      }
-
-      callback()
-    })
+async function checkVideoChannelIsNotTheLastOne (res: express.Response) {
+  const count = await db.VideoChannel.countByAccount(res.locals.oauth.token.User.Account.id)
+
+  if (count <= 1) {
+    res.status(409)
+      .json({ error: 'Cannot remove the last channel of this user' })
+      .end()
+
+    return false
+  }
+
+  return true
 }