mirror of https://github.com/ethereum/go-ethereum
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.
219 lines
6.7 KiB
219 lines
6.7 KiB
package discover
|
|
|
|
import (
|
|
"math/big"
|
|
"math/rand"
|
|
"net"
|
|
"reflect"
|
|
"testing"
|
|
"testing/quick"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/crypto"
|
|
)
|
|
|
|
var (
|
|
quickrand = rand.New(rand.NewSource(time.Now().Unix()))
|
|
quickcfg = &quick.Config{MaxCount: 5000, Rand: quickrand}
|
|
)
|
|
|
|
var parseNodeTests = []struct {
|
|
rawurl string
|
|
wantError string
|
|
wantResult *Node
|
|
}{
|
|
{
|
|
rawurl: "http://foobar",
|
|
wantError: `invalid URL scheme, want "enode"`,
|
|
},
|
|
{
|
|
rawurl: "enode://foobar",
|
|
wantError: `does not contain node ID`,
|
|
},
|
|
{
|
|
rawurl: "enode://01010101@123.124.125.126:3",
|
|
wantError: `invalid node ID (wrong length, need 64 hex bytes)`,
|
|
},
|
|
{
|
|
rawurl: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@hostname:3",
|
|
wantError: `invalid IP address`,
|
|
},
|
|
{
|
|
rawurl: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@127.0.0.1:foo",
|
|
wantError: `invalid port`,
|
|
},
|
|
{
|
|
rawurl: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@127.0.0.1:3?discport=foo",
|
|
wantError: `invalid discport in query`,
|
|
},
|
|
{
|
|
rawurl: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@127.0.0.1:52150",
|
|
wantResult: &Node{
|
|
ID: MustHexID("0x1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
|
|
IP: net.ParseIP("127.0.0.1"),
|
|
UDP: 52150,
|
|
TCP: 52150,
|
|
},
|
|
},
|
|
{
|
|
rawurl: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@[::]:52150",
|
|
wantResult: &Node{
|
|
ID: MustHexID("0x1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
|
|
IP: net.ParseIP("::"),
|
|
UDP: 52150,
|
|
TCP: 52150,
|
|
},
|
|
},
|
|
{
|
|
rawurl: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@127.0.0.1:52150?discport=22334",
|
|
wantResult: &Node{
|
|
ID: MustHexID("0x1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"),
|
|
IP: net.ParseIP("127.0.0.1"),
|
|
UDP: 22334,
|
|
TCP: 52150,
|
|
},
|
|
},
|
|
}
|
|
|
|
func TestParseNode(t *testing.T) {
|
|
for i, test := range parseNodeTests {
|
|
n, err := ParseNode(test.rawurl)
|
|
if err == nil && test.wantError != "" {
|
|
t.Errorf("test %d: got nil error, expected %#q", i, test.wantError)
|
|
continue
|
|
}
|
|
if err != nil && err.Error() != test.wantError {
|
|
t.Errorf("test %d: got error %#q, expected %#q", i, err.Error(), test.wantError)
|
|
continue
|
|
}
|
|
if !reflect.DeepEqual(n, test.wantResult) {
|
|
t.Errorf("test %d: result mismatch:\ngot: %#v, want: %#v", i, n, test.wantResult)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestNodeString(t *testing.T) {
|
|
for i, test := range parseNodeTests {
|
|
if test.wantError != "" {
|
|
continue
|
|
}
|
|
str := test.wantResult.String()
|
|
if str != test.rawurl {
|
|
t.Errorf("test %d: Node.String() mismatch:\ngot: %s\nwant: %s", i, str, test.rawurl)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestHexID(t *testing.T) {
|
|
ref := NodeID{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 106, 217, 182, 31, 165, 174, 1, 67, 7, 235, 220, 150, 66, 83, 173, 205, 159, 44, 10, 57, 42, 161, 26, 188}
|
|
id1 := MustHexID("0x000000000000000000000000000000000000000000000000000000000000000000000000000000806ad9b61fa5ae014307ebdc964253adcd9f2c0a392aa11abc")
|
|
id2 := MustHexID("000000000000000000000000000000000000000000000000000000000000000000000000000000806ad9b61fa5ae014307ebdc964253adcd9f2c0a392aa11abc")
|
|
|
|
if id1 != ref {
|
|
t.Errorf("wrong id1\ngot %v\nwant %v", id1[:], ref[:])
|
|
}
|
|
if id2 != ref {
|
|
t.Errorf("wrong id2\ngot %v\nwant %v", id2[:], ref[:])
|
|
}
|
|
}
|
|
|
|
func TestNodeID_recover(t *testing.T) {
|
|
prv := newkey()
|
|
hash := make([]byte, 32)
|
|
sig, err := crypto.Sign(hash, prv)
|
|
if err != nil {
|
|
t.Fatalf("signing error: %v", err)
|
|
}
|
|
|
|
pub := PubkeyID(&prv.PublicKey)
|
|
recpub, err := recoverNodeID(hash, sig)
|
|
if err != nil {
|
|
t.Fatalf("recovery error: %v", err)
|
|
}
|
|
if pub != recpub {
|
|
t.Errorf("recovered wrong pubkey:\ngot: %v\nwant: %v", recpub, pub)
|
|
}
|
|
|
|
ecdsa, err := pub.Pubkey()
|
|
if err != nil {
|
|
t.Errorf("Pubkey error: %v", err)
|
|
}
|
|
if !reflect.DeepEqual(ecdsa, &prv.PublicKey) {
|
|
t.Errorf("Pubkey mismatch:\n got: %#v\n want: %#v", ecdsa, &prv.PublicKey)
|
|
}
|
|
}
|
|
|
|
func TestNodeID_pubkeyBad(t *testing.T) {
|
|
ecdsa, err := NodeID{}.Pubkey()
|
|
if err == nil {
|
|
t.Error("expected error for zero ID")
|
|
}
|
|
if ecdsa != nil {
|
|
t.Error("expected nil result")
|
|
}
|
|
}
|
|
|
|
func TestNodeID_distcmp(t *testing.T) {
|
|
distcmpBig := func(target, a, b NodeID) int {
|
|
tbig := new(big.Int).SetBytes(target[:])
|
|
abig := new(big.Int).SetBytes(a[:])
|
|
bbig := new(big.Int).SetBytes(b[:])
|
|
return new(big.Int).Xor(tbig, abig).Cmp(new(big.Int).Xor(tbig, bbig))
|
|
}
|
|
if err := quick.CheckEqual(distcmp, distcmpBig, quickcfg); err != nil {
|
|
t.Error(err)
|
|
}
|
|
}
|
|
|
|
// the random tests is likely to miss the case where they're equal.
|
|
func TestNodeID_distcmpEqual(t *testing.T) {
|
|
base := NodeID{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
|
|
x := NodeID{15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0}
|
|
if distcmp(base, x, x) != 0 {
|
|
t.Errorf("distcmp(base, x, x) != 0")
|
|
}
|
|
}
|
|
|
|
func TestNodeID_logdist(t *testing.T) {
|
|
logdistBig := func(a, b NodeID) int {
|
|
abig, bbig := new(big.Int).SetBytes(a[:]), new(big.Int).SetBytes(b[:])
|
|
return new(big.Int).Xor(abig, bbig).BitLen()
|
|
}
|
|
if err := quick.CheckEqual(logdist, logdistBig, quickcfg); err != nil {
|
|
t.Error(err)
|
|
}
|
|
}
|
|
|
|
// the random tests is likely to miss the case where they're equal.
|
|
func TestNodeID_logdistEqual(t *testing.T) {
|
|
x := NodeID{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
|
|
if logdist(x, x) != 0 {
|
|
t.Errorf("logdist(x, x) != 0")
|
|
}
|
|
}
|
|
|
|
func TestNodeID_randomID(t *testing.T) {
|
|
// we don't use quick.Check here because its output isn't
|
|
// very helpful when the test fails.
|
|
for i := 0; i < quickcfg.MaxCount; i++ {
|
|
a := gen(NodeID{}, quickrand).(NodeID)
|
|
dist := quickrand.Intn(len(NodeID{}) * 8)
|
|
result := randomID(a, dist)
|
|
actualdist := logdist(result, a)
|
|
|
|
if dist != actualdist {
|
|
t.Log("a: ", a)
|
|
t.Log("result:", result)
|
|
t.Fatalf("#%d: distance of result is %d, want %d", i, actualdist, dist)
|
|
}
|
|
}
|
|
}
|
|
|
|
func (NodeID) Generate(rand *rand.Rand, size int) reflect.Value {
|
|
var id NodeID
|
|
m := rand.Intn(len(id))
|
|
for i := len(id) - 1; i > m; i-- {
|
|
id[i] = byte(rand.Uint32())
|
|
}
|
|
return reflect.ValueOf(id)
|
|
}
|
|
|