AlistGo/alist · error

Invalid range

Error message

Invalid range

What it means

Error "Invalid range" thrown in AlistGo/alist.

Source

Thrown at drivers/proton_drive/util.go:206

		return
	}

	// Get file size for range calculations
	_, _, attrs, err := d.protonDrive.DownloadFile(r.Context(), link, 0)
	if err != nil {
		http.Error(w, "Failed to get file info", http.StatusInternalServerError)
		return
	}

	fileSize := attrs.Size

	rangeHeader := r.Header.Get("Range")
	if rangeHeader != "" {

		// Parse range header like "bytes=0-1023" or "bytes=1024-"
		ranges, err := parseRange(rangeHeader, fileSize)
		if err != nil {
			http.Error(w, "Invalid range", http.StatusRequestedRangeNotSatisfiable)
			return
		}

		if len(ranges) == 1 {

			// Single range request, small
			start, end := ranges[0].start, ranges[0].end
			contentLength := end - start + 1

			// Start download from offset
			reader, _, _, err := d.protonDrive.DownloadFile(r.Context(), link, start)
			if err != nil {
				http.Error(w, "Failed to start download", http.StatusInternalServerError)
				return
			}
			defer reader.Close()

			w.Header().Set("Content-Range", fmt.Sprintf("bytes %d-%d/%d", start, end, fileSize))

View on GitHub (pinned to 843d9dc814)

Solutions

1. Send a valid HTTP Range header within the file size bounds and retry the request.

When it happens

Trigger: Thrown at drivers/proton_drive/util.go:206 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of AlistGo/alist@843d9dc814 (2026-08-15). Data as JSON: /api/errors/f24442ebb0dbcaa3. Report an issue: GitHub.