You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
66 lines
1.8 KiB
66 lines
1.8 KiB
package types
|
|
|
|
import (
|
|
"encoding/hex"
|
|
"errors"
|
|
"fmt"
|
|
"regexp"
|
|
"strings"
|
|
|
|
"github.com/tendermint/tendermint/crypto"
|
|
)
|
|
|
|
// NodeIDByteLength is the length of a crypto.Address. Currently only 20.
|
|
// FIXME: support other length addresses?
|
|
const NodeIDByteLength = crypto.AddressSize
|
|
|
|
// reNodeID is a regexp for valid node IDs.
|
|
var reNodeID = regexp.MustCompile(`^[0-9a-f]{40}$`)
|
|
|
|
// NodeID is a hex-encoded crypto.Address. It must be lowercased
|
|
// (for uniqueness) and of length 2*NodeIDByteLength.
|
|
type NodeID string
|
|
|
|
// NewNodeID returns a lowercased (normalized) NodeID, or errors if the
|
|
// node ID is invalid.
|
|
func NewNodeID(nodeID string) (NodeID, error) {
|
|
n := NodeID(strings.ToLower(nodeID))
|
|
return n, n.Validate()
|
|
}
|
|
|
|
// IDAddressString returns id@hostPort. It strips the leading
|
|
// protocol from protocolHostPort if it exists.
|
|
func (id NodeID) AddressString(protocolHostPort string) string {
|
|
return fmt.Sprintf("%s@%s", id, removeProtocolIfDefined(protocolHostPort))
|
|
}
|
|
|
|
// NodeIDFromPubKey creates a node ID from a given PubKey address.
|
|
func NodeIDFromPubKey(pubKey crypto.PubKey) NodeID {
|
|
return NodeID(hex.EncodeToString(pubKey.Address()))
|
|
}
|
|
|
|
// Bytes converts the node ID to its binary byte representation.
|
|
func (id NodeID) Bytes() ([]byte, error) {
|
|
bz, err := hex.DecodeString(string(id))
|
|
if err != nil {
|
|
return nil, fmt.Errorf("invalid node ID encoding: %w", err)
|
|
}
|
|
return bz, nil
|
|
}
|
|
|
|
// Validate validates the NodeID.
|
|
func (id NodeID) Validate() error {
|
|
switch {
|
|
case len(id) == 0:
|
|
return errors.New("empty node ID")
|
|
|
|
case len(id) != 2*NodeIDByteLength:
|
|
return fmt.Errorf("invalid node ID length %d, expected %d", len(id), 2*NodeIDByteLength)
|
|
|
|
case !reNodeID.MatchString(string(id)):
|
|
return fmt.Errorf("node ID can only contain lowercased hex digits")
|
|
|
|
default:
|
|
return nil
|
|
}
|
|
}
|