netbird/relay/messages/id.go
Zoltan Papp 0c039274a4
[relay] Feature/relay integration (#2244)
This update adds new relay integration for NetBird clients. The new relay is based on web sockets and listens on a single port.

- Adds new relay implementation with websocket with single port relaying mechanism
- refactor peer connection logic, allowing upgrade and downgrade from/to P2P connection
- peer connections are faster since it connects first to relay and then upgrades to P2P
- maintains compatibility with old clients by not using the new relay
- updates infrastructure scripts with new relay service
2024-09-08 12:06:14 +02:00

32 lines
835 B
Go

package messages
import (
"crypto/sha256"
"encoding/base64"
"fmt"
)
const (
prefixLength = 4
IDSize = prefixLength + sha256.Size
)
var (
prefix = []byte("sha-") // 4 bytes
)
// HashID generates a sha256 hash from the peerID and returns the hash and the human-readable string
func HashID(peerID string) ([]byte, string) {
idHash := sha256.Sum256([]byte(peerID))
idHashString := string(prefix) + base64.StdEncoding.EncodeToString(idHash[:])
var prefixedHash []byte
prefixedHash = append(prefixedHash, prefix...)
prefixedHash = append(prefixedHash, idHash[:]...)
return prefixedHash, idHashString
}
// HashIDToString converts a hash to a human-readable string
func HashIDToString(idHash []byte) string {
return fmt.Sprintf("%s%s", idHash[:prefixLength], base64.StdEncoding.EncodeToString(idHash[prefixLength:]))
}