moonD4rk/HackBrowserData · error

no process has file open: %s

Error message

no process has file open: %s

What it means

findFileHandle exhausted every duplicatable system handle without one whose final path suffix-matches the target file, so no process appears to hold the requested file open. In the context of copyLocked it means the 'locked file' premise failed — the lock is gone or was never exclusive — and the caller should fall back to an ordinary copy instead of the handle-duplication path.

Source

Thrown at filemanager/copy_windows.go:103

		if winapi.GetFileType(dupHandle) != winapi.FileTypeDisk {
			_ = windows.CloseHandle(dupHandle)
			continue
		}

		// Get the file path and check if it matches our target
		name, err := winapi.GetFinalPathName(dupHandle)
		if err != nil {
			_ = windows.CloseHandle(dupHandle)
			continue
		}

		if strings.HasSuffix(strings.ToLower(name), targetSuffix) {
			return dupHandle, nil
		}
		_ = windows.CloseHandle(dupHandle)
	}

	return 0, fmt.Errorf("no process has file open: %s", targetPath)
}

// readFileContent reads file content from a duplicated handle.
// It uses FileMapping first (CreateFileMapping + MapViewOfFile), which reads
// from the OS kernel's file cache — this includes WAL data that Chrome has
// written but not yet checkpointed to the main file. Falls back to ReadFile
// if FileMapping fails.
func readFileContent(handle windows.Handle) ([]byte, error) {
	fileSize, err := winapi.GetFileSizeEx(handle)
	if err != nil {
		return nil, err
	}
	if fileSize == 0 {
		return nil, fmt.Errorf("file is empty")
	}

	size := int(fileSize)

View on GitHub (pinned to 0503d04d7a)

Solutions

1. Fall back to a normal file copy since no process holds the file
2. Verify the file path casing/spelling used for suffix matching
3. Re-check that the browser process holding the lock is still alive
4. Retry the copy after restarting the target browser

When it happens

Trigger: Thrown at filemanager/copy_windows.go:103 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of moonD4rk/HackBrowserData@0503d04d7a (2026-09-06). Data as JSON: /api/errors/761a99a48a185cdc. Report an issue: GitHub.