Function handleLocalFile

apps/sim/app/api/files/parse/route.ts:802–909

* Handle local file

(
  filePath: string,
  fileType: string,
  userId: string,
  executionContext?: ExecutionContext,
  maxDownloadBytes = MAX_DOWNLOAD_SIZE_BYTES,
  maxParsedOutputBytes?: number
)

 * Handle local file
 */
async function handleLocalFile(
  filePath: string,
  fileType: string,
  userId: string,
  executionContext?: ExecutionContext,
  maxDownloadBytes = MAX_DOWNLOAD_SIZE_BYTES,
  maxParsedOutputBytes?: number
): Promise<ParseResult> {
  try {
    const storageKey = isInternalFileUrl(filePath) ? extractStorageKey(filePath) : filePath
    const filename = storageKey.split('/').pop() || storageKey

    const context = inferContextFromKey(storageKey)
    const hasAccess = await verifyFileAccess(
      storageKey,
      userId,
      undefined, // customConfig
      context, // context
      true // isLocal
    )

    if (!hasAccess) {
      logger.warn('Unauthorized local file parse attempt', { userId, filename })
      return {
        success: false,
        error: 'File not found',
        filePath,
      }
    }

    const fullPath = path.join(UPLOAD_DIR_SERVER, storageKey)

    logger.info('Processing local file:', fullPath)

    try {
      await fsPromises.access(fullPath)
    } catch {
      throw new Error(`File not found: ${filename}`)
    }

    const stats = await fsPromises.stat(fullPath)
    assertKnownSizeWithinLimit(stats.size, maxDownloadBytes, 'local file')

    const result = await parseFile(fullPath)
    const content = assertParsedContentWithinLimit(result.content, maxParsedOutputBytes)
    const fileBuffer = await fsPromises.readFile(fullPath)
    const hash = createHash('md5').update(fileBuffer).digest('hex')

    const extension = path.extname(filename).toLowerCase().substring(1)
    const mimeType = fileType || getMimeTypeFromExtension(extension)

    // Store file in execution storage if executionContext is provided
    let userFile: UserFile | undefined
    if (executionContext) {
      try {
        userFile = await uploadExecutionFile(
          executionContext,
          fileBuffer,