9 crypto "github.com/tendermint/go-crypto"
12 const maxNodeInfoSize = 10240 // 10Kb
14 type NodeInfo struct {
15 PubKey crypto.PubKeyEd25519 `json:"pub_key"`
16 Moniker string `json:"moniker"`
17 Network string `json:"network"`
18 RemoteAddr string `json:"remote_addr"`
19 ListenAddr string `json:"listen_addr"`
20 Version string `json:"version"` // major.minor.revision
21 Other []string `json:"other"` // other application specific data
24 // CONTRACT: two nodes are compatible if the major/minor versions match and network match
25 func (info *NodeInfo) CompatibleWith(other *NodeInfo) error {
26 iMajor, iMinor, _, iErr := splitVersion(info.Version)
27 oMajor, oMinor, _, oErr := splitVersion(other.Version)
29 // if our own version number is not formatted right, we messed up
34 // version number must be formatted correctly ("x.x.x")
39 // major version must match
41 return fmt.Errorf("Peer is on a different major version. Got %v, expected %v", oMajor, iMajor)
44 // minor version must match
46 return fmt.Errorf("Peer is on a different minor version. Got %v, expected %v", oMinor, iMinor)
49 // nodes must be on the same network
50 if info.Network != other.Network {
51 return fmt.Errorf("Peer is on a different network. Got %v, expected %v", other.Network, info.Network)
57 func (info *NodeInfo) ListenHost() string {
58 host, _, _ := net.SplitHostPort(info.ListenAddr)
62 func (info *NodeInfo) ListenPort() int {
63 _, port, _ := net.SplitHostPort(info.ListenAddr)
64 port_i, err := strconv.Atoi(port)
71 func (info NodeInfo) String() string {
72 return fmt.Sprintf("NodeInfo{pk: %v, moniker: %v, network: %v [remote %v, listen %v], version: %v (%v)}", info.PubKey, info.Moniker, info.Network, info.RemoteAddr, info.ListenAddr, info.Version, info.Other)
75 func splitVersion(version string) (string, string, string, error) {
76 spl := strings.Split(version, ".")
78 return "", "", "", fmt.Errorf("Invalid version format %v", version)
80 return spl[0], spl[1], spl[2], nil