Function Attachments

internal/mailparse/attachments.go:34–50

Attachments walks the MIME tree of a raw RFC 5322 message and returns its attachment parts in stable document order (depth-first, as they appear in the wire bytes). Index N from this function is the SAME index used by AttachmentAt and by the message read view — it is the authoritative attachment ind

(raw []byte)

// On a parse failure or a non-multipart message with no attachment part, returns
// an empty slice (never nil-panics).
func Attachments(raw []byte) []Attachment {
	msg, err := mail.ReadMessage(bytes.NewReader(raw))
	if err != nil {
		return nil
	}
	var out []Attachment
	collectAttachments(
		msg.Header.Get("Content-Type"),
		msg.Header.Get("Content-Transfer-Encoding"),
		msg.Header.Get("Content-Disposition"),
		"", // top-level has no part filename
		msg.Body,
		0,
		&out,
	)
	return out
}

// AttachmentAt returns the attachment at the 0-based index, or false if out of
// range. It re-walks the message (the caller holds the raw bytes); attachments