// Unmarshal decodes raw data into a *Node instance. // The conversion uses an intermediate PBNode. func (n *Node) Unmarshal(encoded []byte) error { var pbn pb.PBNode if err := pbn.Unmarshal(encoded); err != nil { return fmt.Errorf("Unmarshal failed. %v", err) } pbnl := pbn.GetLinks() n.Links = make([]*Link, len(pbnl)) for i, l := range pbnl { n.Links[i] = &Link{Name: l.GetName(), Size: l.GetTsize()} h, err := mh.Cast(l.GetHash()) if err != nil { return fmt.Errorf("Link hash is not valid multihash. %v", err) } n.Links[i].Hash = h } n.Data = pbn.GetData() return nil }
// Resolve implements Resolver // TXT records for a given domain name should contain a b58 // encoded multihash. func (r *DNSResolver) Resolve(name string) (string, error) { log.Info("DNSResolver resolving %v", name) txt, err := net.LookupTXT(name) if err != nil { return "", err } for _, t := range txt { chk := b58.Decode(t) if len(chk) == 0 { continue } _, err := mh.Cast(chk) if err != nil { continue } return t, nil } return "", ErrResolveFailed }