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.
81 lines
2.3 KiB
81 lines
2.3 KiB
package p2p
|
|
|
|
import (
|
|
"fmt"
|
|
"net"
|
|
"strconv"
|
|
"strings"
|
|
|
|
crypto "github.com/tendermint/go-crypto"
|
|
)
|
|
|
|
const maxNodeInfoSize = 10240 // 10Kb
|
|
|
|
type NodeInfo struct {
|
|
PubKey crypto.PubKey `json:"pub_key"`
|
|
Moniker string `json:"moniker"`
|
|
Network string `json:"network"`
|
|
RemoteAddr string `json:"remote_addr"`
|
|
ListenAddr string `json:"listen_addr"`
|
|
Version string `json:"version"` // major.minor.revision
|
|
Other []string `json:"other"` // other application specific data
|
|
}
|
|
|
|
// CONTRACT: two nodes are compatible if the major/minor versions match and network match
|
|
func (info *NodeInfo) CompatibleWith(other *NodeInfo) error {
|
|
iMajor, iMinor, _, iErr := splitVersion(info.Version)
|
|
oMajor, oMinor, _, oErr := splitVersion(other.Version)
|
|
|
|
// if our own version number is not formatted right, we messed up
|
|
if iErr != nil {
|
|
return iErr
|
|
}
|
|
|
|
// version number must be formatted correctly ("x.x.x")
|
|
if oErr != nil {
|
|
return oErr
|
|
}
|
|
|
|
// major version must match
|
|
if iMajor != oMajor {
|
|
return fmt.Errorf("Peer is on a different major version. Got %v, expected %v", oMajor, iMajor)
|
|
}
|
|
|
|
// minor version must match
|
|
if iMinor != oMinor {
|
|
return fmt.Errorf("Peer is on a different minor version. Got %v, expected %v", oMinor, iMinor)
|
|
}
|
|
|
|
// nodes must be on the same network
|
|
if info.Network != other.Network {
|
|
return fmt.Errorf("Peer is on a different network. Got %v, expected %v", other.Network, info.Network)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (info *NodeInfo) ListenHost() string {
|
|
host, _, _ := net.SplitHostPort(info.ListenAddr) // nolint: errcheck, gas
|
|
return host
|
|
}
|
|
|
|
func (info *NodeInfo) ListenPort() int {
|
|
_, port, _ := net.SplitHostPort(info.ListenAddr) // nolint: errcheck, gas
|
|
port_i, err := strconv.Atoi(port)
|
|
if err != nil {
|
|
return -1
|
|
}
|
|
return port_i
|
|
}
|
|
|
|
func (info NodeInfo) String() string {
|
|
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)
|
|
}
|
|
|
|
func splitVersion(version string) (string, string, string, error) {
|
|
spl := strings.Split(version, ".")
|
|
if len(spl) != 3 {
|
|
return "", "", "", fmt.Errorf("Invalid version format %v", version)
|
|
}
|
|
return spl[0], spl[1], spl[2], nil
|
|
}
|