go-blockchain/p2p/handshake_test.go
Virgil d2caf68d94
Some checks are pending
Security Scan / security (push) Waiting to run
Test / Test (push) Waiting to run
fix(p2p): report malformed peer builds
Co-Authored-By: Charon <charon@lethean.io>
2026-04-04 19:49:03 +00:00

229 lines
6.7 KiB
Go

// Copyright (c) 2017-2026 Lethean (https://lt.hn)
//
// Licensed under the European Union Public Licence (EUPL) version 1.2.
// SPDX-License-Identifier: EUPL-1.2
package p2p
import (
"encoding/binary"
"strings"
"testing"
"dappco.re/go/core/blockchain/config"
"dappco.re/go/core/p2p/node/levin"
)
func TestEncodeHandshakeRequest_Good_Roundtrip(t *testing.T) {
req := HandshakeRequest{
NodeData: NodeData{
NetworkID: config.NetworkIDTestnet,
PeerID: 0xDEADBEEF,
LocalTime: 1708444800,
MyPort: 46942,
},
PayloadData: CoreSyncData{
CurrentHeight: 100,
ClientVersion: "test/0.1",
},
}
data, err := EncodeHandshakeRequest(&req)
if err != nil {
t.Fatalf("encode: %v", err)
}
s, err := levin.DecodeStorage(data)
if err != nil {
t.Fatalf("decode storage: %v", err)
}
var got HandshakeRequest
if err := got.UnmarshalSection(s); err != nil {
t.Fatalf("unmarshal: %v", err)
}
if got.NodeData.NetworkID != config.NetworkIDTestnet {
t.Errorf("network_id mismatch")
}
if got.NodeData.PeerID != 0xDEADBEEF {
t.Errorf("peer_id: got %x, want DEADBEEF", got.NodeData.PeerID)
}
if got.NodeData.LocalTime != 1708444800 {
t.Errorf("local_time: got %d, want 1708444800", got.NodeData.LocalTime)
}
if got.NodeData.MyPort != 46942 {
t.Errorf("my_port: got %d, want 46942", got.NodeData.MyPort)
}
if got.PayloadData.CurrentHeight != 100 {
t.Errorf("height: got %d, want 100", got.PayloadData.CurrentHeight)
}
if got.PayloadData.ClientVersion != "test/0.1" {
t.Errorf("client_version: got %q, want %q", got.PayloadData.ClientVersion, "test/0.1")
}
}
func TestDecodeHandshakeResponse_Good_WithPeerlist(t *testing.T) {
// Build a response section manually.
nodeData := levin.Section{
"network_id": levin.StringVal(config.NetworkIDTestnet[:]),
"peer_id": levin.Uint64Val(42),
"local_time": levin.Int64Val(1708444800),
"my_port": levin.Uint32Val(46942),
}
syncData := CoreSyncData{
CurrentHeight: 6300,
ClientVersion: "Zano/2.0",
}
// Pack 2 peerlist entries into a single blob.
peerBlob := make([]byte, 48) // 2 x 24 bytes
// Entry 1: ip=10.0.0.1 (0x0100000A LE), port=46942, id=1, last_seen=1000
binary.LittleEndian.PutUint32(peerBlob[0:4], 0x0100000A) // 10.0.0.1
binary.LittleEndian.PutUint32(peerBlob[4:8], 46942)
binary.LittleEndian.PutUint64(peerBlob[8:16], 1)
binary.LittleEndian.PutUint64(peerBlob[16:24], 1000)
// Entry 2: ip=192.168.1.1, port=36942, id=2, last_seen=2000
binary.LittleEndian.PutUint32(peerBlob[24:28], 0x0101A8C0) // 192.168.1.1
binary.LittleEndian.PutUint32(peerBlob[28:32], 36942)
binary.LittleEndian.PutUint64(peerBlob[32:40], 2)
binary.LittleEndian.PutUint64(peerBlob[40:48], 2000)
s := levin.Section{
"node_data": levin.ObjectVal(nodeData),
"payload_data": levin.ObjectVal(syncData.MarshalSection()),
"local_peerlist": levin.StringVal(peerBlob),
}
data, err := levin.EncodeStorage(s)
if err != nil {
t.Fatalf("encode storage: %v", err)
}
var resp HandshakeResponse
if err := resp.Decode(data); err != nil {
t.Fatalf("decode: %v", err)
}
if resp.NodeData.PeerID != 42 {
t.Errorf("peer_id: got %d, want 42", resp.NodeData.PeerID)
}
if resp.PayloadData.CurrentHeight != 6300 {
t.Errorf("height: got %d, want 6300", resp.PayloadData.CurrentHeight)
}
if len(resp.PeerlistBlob) != 48 {
t.Fatalf("peerlist: got %d bytes, want 48", len(resp.PeerlistBlob))
}
// Decode the peerlist
entries := DecodePeerlist(resp.PeerlistBlob)
if len(entries) != 2 {
t.Fatalf("peerlist entries: got %d, want 2", len(entries))
}
if entries[0].IP != 0x0100000A {
t.Errorf("entry[0].ip: got %x, want 0100000A", entries[0].IP)
}
if entries[0].Port != 46942 {
t.Errorf("entry[0].port: got %d, want 46942", entries[0].Port)
}
if entries[0].ID != 1 {
t.Errorf("entry[0].id: got %d, want 1", entries[0].ID)
}
if entries[1].LastSeen != 2000 {
t.Errorf("entry[1].last_seen: got %d, want 2000", entries[1].LastSeen)
}
}
func TestNodeData_Good_NetworkIDBlob(t *testing.T) {
nd := NodeData{NetworkID: config.NetworkIDTestnet}
s := nd.MarshalSection()
blob, err := s["network_id"].AsString()
if err != nil {
t.Fatalf("network_id: %v", err)
}
if len(blob) != 16 {
t.Fatalf("network_id blob: got %d bytes, want 16", len(blob))
}
// Byte 10 = P2P_NETWORK_ID_TESTNET_FLAG. In the C++ source, the
// #else (testnet) branch sets this to 0 (counter-intuitive naming).
if blob[10] != 0x00 {
t.Errorf("testnet flag: got %x, want 0x00", blob[10])
}
// Byte 15 = version = 0x64 (100)
if blob[15] != 0x64 {
t.Errorf("version byte: got %x, want 0x64", blob[15])
}
}
func TestDecodePeerlist_Good_EmptyBlob(t *testing.T) {
entries := DecodePeerlist(nil)
if len(entries) != 0 {
t.Errorf("empty peerlist: got %d entries, want 0", len(entries))
}
}
func TestValidateHandshakeResponse_Good(t *testing.T) {
resp := &HandshakeResponse{
NodeData: NodeData{
NetworkID: config.NetworkIDTestnet,
},
PayloadData: CoreSyncData{
ClientVersion: "6.0.1.2[go-blockchain]",
},
}
if err := ValidateHandshakeResponse(resp, config.NetworkIDTestnet, true); err != nil {
t.Fatalf("ValidateHandshakeResponse: %v", err)
}
}
func TestValidateHandshakeResponse_BadNetwork(t *testing.T) {
resp := &HandshakeResponse{
NodeData: NodeData{
NetworkID: config.NetworkIDMainnet,
},
PayloadData: CoreSyncData{
ClientVersion: "6.0.1.2[go-blockchain]",
},
}
err := ValidateHandshakeResponse(resp, config.NetworkIDTestnet, true)
if err == nil {
t.Fatal("ValidateHandshakeResponse: expected network mismatch error")
}
if !strings.Contains(err.Error(), "network id") {
t.Fatalf("ValidateHandshakeResponse error: got %v, want network id mismatch", err)
}
}
func TestValidateHandshakeResponse_BadBuildVersion(t *testing.T) {
resp := &HandshakeResponse{
NodeData: NodeData{
NetworkID: config.NetworkIDMainnet,
},
PayloadData: CoreSyncData{
ClientVersion: "0.0.1.0",
},
}
err := ValidateHandshakeResponse(resp, config.NetworkIDMainnet, false)
if err == nil {
t.Fatal("ValidateHandshakeResponse: expected build version error")
}
if !strings.Contains(err.Error(), "below minimum") {
t.Fatalf("ValidateHandshakeResponse error: got %v, want build minimum failure", err)
}
}
func TestValidateHandshakeResponse_BadMalformedBuildVersion(t *testing.T) {
resp := &HandshakeResponse{
NodeData: NodeData{
NetworkID: config.NetworkIDMainnet,
},
PayloadData: CoreSyncData{
ClientVersion: "bogus",
},
}
err := ValidateHandshakeResponse(resp, config.NetworkIDMainnet, false)
if err == nil {
t.Fatal("ValidateHandshakeResponse: expected malformed build version error")
}
if !strings.Contains(err.Error(), "malformed") {
t.Fatalf("ValidateHandshakeResponse error: got %v, want malformed build version failure", err)
}
}