-import * as validator from 'validator'
-import { CONSTRAINTS_FIELDS, VIDEO_IMPORT_STATES } from '../../initializers'
-import { exists } from './misc'
-import * as express from 'express'
-import { VideoChannelModel } from '../../models/video/video-channel'
-import { VideoImportModel } from '../../models/video/video-import'
+import validator from 'validator'
+import { CONSTRAINTS_FIELDS, MIMETYPES, VIDEO_IMPORT_STATES } from '../../initializers/constants'
+import { exists, isFileValid } from './misc'