This is the v1 version, had the v2 before.

responses/list.go

@@ -0,0 +1,57 @@
+package responses
+
+import (
+	"github.com/emersion/go-imap"
+)
+
+const (
+	listName = "LIST"
+	lsubName = "LSUB"
+)
+
+// A LIST response.
+// If Subscribed is set to true, LSUB will be used instead.
+// See RFC 3501 section 7.2.2
+type List struct {
+	Mailboxes  chan *imap.MailboxInfo
+	Subscribed bool
+}
+
+func (r *List) Name() string {
+	if r.Subscribed {
+		return lsubName
+	} else {
+		return listName
+	}
+}
+
+func (r *List) Handle(resp imap.Resp) error {
+	name, fields, ok := imap.ParseNamedResp(resp)
+	if !ok || name != r.Name() {
+		return ErrUnhandled
+	}
+
+	mbox := &imap.MailboxInfo{}
+	if err := mbox.Parse(fields); err != nil {
+		return err
+	}
+
+	r.Mailboxes <- mbox
+	return nil
+}
+
+func (r *List) WriteTo(w *imap.Writer) error {
+	respName := r.Name()
+
+	for mbox := range r.Mailboxes {
+		fields := []interface{}{imap.RawString(respName)}
+		fields = append(fields, mbox.Format()...)
+
+		resp := imap.NewUntaggedResp(fields)
+		if err := resp.WriteTo(w); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}