Example #1
0
// InvertKey returns a b58 decoded Datastore key
// TODO: this is hacky because it encodes every path component. some
// path components may be proper strings already...
func (b58KeyConverter) InvertKey(dsk ds.Key) ds.Key {
	k := ds.NewKey("/")
	for _, n := range dsk.Namespaces() {
		k = k.ChildString(string(b58.Decode(n)))
	}
	return k
}
Example #2
0
// IsValidHash checks whether a given hash is valid (b58 decodable, len > 0)
func IsValidHash(s string) bool {
	out := b58.Decode(s)
	if out == nil || len(out) == 0 {
		return false
	}
	_, err := mh.Cast(out)
	if err != nil {
		return false
	}
	return true
}
Example #3
0
// UnmarshalJSON returns a JSON-encoded Key (string)
func (k *Key) UnmarshalJSON(mk []byte) error {
	var s string
	err := json.Unmarshal(mk, &s)
	if err != nil {
		return err
	}

	*k = Key(string(b58.Decode(s)))
	if len(*k) == 0 && len(s) > 2 { // if b58.Decode fails, k == ""
		return fmt.Errorf("Key.UnmarshalJSON: invalid b58 string: %v", mk)
	}
	return nil
}
Example #4
0
func FromB58String(s string) (m Multihash, err error) {
	// panic handler, in case we try accessing bytes incorrectly.
	defer func() {
		if e := recover(); e != nil {
			m = Multihash{}
			err = e.(error)
		}
	}()

	//b58 smells like it can panic...
	b := b58.Decode(s)
	return Cast(b)
}
Example #5
0
func Decode(encoding, digest string) (mh.Multihash, error) {
	switch encoding {
	case "raw":
		return mh.Cast([]byte(digest))
	case "hex":
		return hex.DecodeString(digest)
	case "base58":
		return base58.Decode(digest), nil
	case "base64":
		return base64.StdEncoding.DecodeString(digest)
	default:
		return nil, fmt.Errorf("unknown encoding: %s", encoding)
	}
}
Example #6
0
// B58KeyDecode returns Key from a b58 encoded string
func B58KeyDecode(s string) Key {
	return Key(string(b58.Decode(s)))
}