dify/web/app/components/workflow/block-selector/constants.tsx

import { BlockClassificationEnum } from './types'

export const BLOCK_CLASSIFICATIONS: string[] = [
  BlockClassificationEnum.Default,
  BlockClassificationEnum.QuestionUnderstand,
  BlockClassificationEnum.Logic,
  BlockClassificationEnum.Transform,
  BlockClassificationEnum.Utilities,
]

export const DEFAULT_FILE_EXTENSIONS_IN_LOCAL_FILE_DATA_SOURCE = [
  'txt',
  'markdown',
  'mdx',
  'pdf',
  'html',
  'xlsx',
  'xls',
  'vtt',
  'properties',
  'doc',
  'docx',
  'csv',
  'eml',
  'msg',
  'pptx',
  'xml',
  'epub',
  'ppt',
  'md',
]