Forked the emersion/go-imap v1 project.

imapserver/namespace.go

@@ -0,0 +1,54 @@
+package imapserver
+
+import (
+	"github.com/emersion/go-imap/v2"
+	"github.com/emersion/go-imap/v2/internal/imapwire"
+)
+
+func (c *Conn) handleNamespace(dec *imapwire.Decoder) error {
+	if !dec.ExpectCRLF() {
+		return dec.Err()
+	}
+
+	if err := c.checkState(imap.ConnStateAuthenticated); err != nil {
+		return err
+	}
+
+	session, ok := c.session.(SessionNamespace)
+	if !ok {
+		return newClientBugError("NAMESPACE is not supported")
+	}
+
+	data, err := session.Namespace()
+	if err != nil {
+		return err
+	}
+
+	enc := newResponseEncoder(c)
+	defer enc.end()
+	enc.Atom("*").SP().Atom("NAMESPACE").SP()
+	writeNamespace(enc.Encoder, data.Personal)
+	enc.SP()
+	writeNamespace(enc.Encoder, data.Other)
+	enc.SP()
+	writeNamespace(enc.Encoder, data.Shared)
+	return enc.CRLF()
+}
+
+func writeNamespace(enc *imapwire.Encoder, l []imap.NamespaceDescriptor) {
+	if l == nil {
+		enc.NIL()
+		return
+	}
+
+	enc.List(len(l), func(i int) {
+		descr := l[i]
+		enc.Special('(').String(descr.Prefix).SP()
+		if descr.Delim == 0 {
+			enc.NIL()
+		} else {
+			enc.Quoted(string(descr.Delim))
+		}
+		enc.Special(')')
+	})
+}