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discovery: modify SignAnnouncement to take a MessageSigner

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This commit modifies the SignAnnouncement helper function to instead
take a MessageSigner interface rather than the deprecated MessageSigner
struct.  We also modify the function to explicitly take the identity
public key to use when signing.
This commit is contained in:
Olaoluwa Osuntokun 2017-04-14 11:08:07 -07:00
parent 4e988b228e
commit 0f9c2e1d17
No known key found for this signature in database
GPG Key ID: 9CC5B105D03521A2
2 changed files with 39 additions and 17 deletions
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52
discovery/service_test.go
View File

@ -16,7 +16,6 @@ import (
"github.com/go-errors/errors"
"github.com/lightningnetwork/lnd/chainntnfs"
"github.com/lightningnetwork/lnd/channeldb"
"github.com/lightningnetwork/lnd/lnwallet"
"github.com/lightningnetwork/lnd/lnwire"
"github.com/lightningnetwork/lnd/routing"
"github.com/roasbeef/btcd/btcec"
@ -56,6 +55,26 @@ var (
proofMatureDelta uint32
)
type mockSigner struct {
privKey *btcec.PrivateKey
}
func (n *mockSigner) SignMessage(pubKey *btcec.PublicKey,
msg []byte) (*btcec.Signature, error) {
if !pubKey.IsEqual(n.privKey.PubKey()) {
return nil, fmt.Errorf("unknown public key")
}
digest := chainhash.DoubleHashB(msg)
sign, err := n.privKey.Sign(digest)
if err != nil {
return nil, fmt.Errorf("can't sign the message: %v", err)
}
return sign, nil
}
type mockGraphSource struct {
nodes []*channeldb.LightningNode
infos map[uint64]*channeldb.ChannelEdgeInfo
@ -278,8 +297,8 @@ func createNodeAnnouncement(priv *btcec.PrivateKey) (*lnwire.NodeAnnouncement,
Features: testFeatures,
}
signer := lnwallet.NewMessageSigner(nodeKeyPriv1)
if a.Signature, err = SignAnnouncement(signer, a); err != nil {
signer := mockSigner{priv}
if a.Signature, err = SignAnnouncement(&signer, priv.PubKey(), a); err != nil {
return nil, err
}
@ -301,8 +320,9 @@ func createUpdateAnnouncement(blockHeight uint32) (*lnwire.ChannelUpdateAnnounce
FeeProportionalMillionths: uint32(prand.Int31()),
}
signer := lnwallet.NewMessageSigner(nodeKeyPriv1)
if a.Signature, err = SignAnnouncement(signer, a); err != nil {
pub := nodeKeyPriv1.PubKey()
signer := mockSigner{nodeKeyPriv1}
if a.Signature, err = SignAnnouncement(&signer, pub, a); err != nil {
return nil, err
}
@ -325,13 +345,15 @@ func createRemoteChannelAnnouncement(blockHeight uint32) (*lnwire.ChannelAnnounc
BitcoinKey2: bitcoinKeyPub2,
}
signer := lnwallet.NewMessageSigner(nodeKeyPriv1)
if a.NodeSig1, err = SignAnnouncement(signer, a); err != nil {
pub := nodeKeyPriv1.PubKey()
signer := mockSigner{nodeKeyPriv1}
if a.NodeSig1, err = SignAnnouncement(&signer, pub, a); err != nil {
return nil, err
}
signer = lnwallet.NewMessageSigner(nodeKeyPriv2)
if a.NodeSig2, err = SignAnnouncement(signer, a); err != nil {
pub = nodeKeyPriv2.PubKey()
signer = mockSigner{nodeKeyPriv2}
if a.NodeSig2, err = SignAnnouncement(&signer, pub, a); err != nil {
return nil, err
}
@ -584,7 +606,7 @@ func TestSignatureAnnouncement(t *testing.T) {
}
select {
case <-ctx.broadcastedMessage:
t.Fatal("channel announcement was broadcasted")
t.Fatal("channel announcement was broadcast")
case <-time.After(2 * trickleDelay):
}
@ -594,7 +616,7 @@ func TestSignatureAnnouncement(t *testing.T) {
}
select {
case <-ctx.broadcastedMessage:
t.Fatal("channel update announcement was broadcasted")
t.Fatal("channel update announcement was broadcast")
case <-time.After(2 * trickleDelay):
}
@ -604,7 +626,7 @@ func TestSignatureAnnouncement(t *testing.T) {
}
select {
case <-ctx.broadcastedMessage:
t.Fatal("channel update announcement was broadcasted")
t.Fatal("channel update announcement was broadcast")
case <-time.After(2 * trickleDelay):
}
@ -617,12 +639,12 @@ func TestSignatureAnnouncement(t *testing.T) {
select {
case <-ctx.broadcastedMessage:
t.Fatal("announcements were broadcasted")
t.Fatal("announcements were broadcast")
case <-time.After(2 * trickleDelay):
}
if len(ctx.discovery.waitingProofs) != 1 {
t.Fatal("local proof annoucement should be stored")
t.Fatal("local proof announcement should be stored")
}
err = <-ctx.discovery.ProcessRemoteAnnouncement(batch.remoteProofAnn, remoteKey)
@ -634,7 +656,7 @@ func TestSignatureAnnouncement(t *testing.T) {
select {
case <-ctx.broadcastedMessage:
case <-time.After(time.Second):
t.Fatal("announcement wasn't broadcasted")
t.Fatal("announcement wasn't broadcast")
}
}
}

4
discovery/utils.go
View File

@ -109,7 +109,7 @@ func copyPubKey(pub *btcec.PublicKey) *btcec.PublicKey {
// SignAnnouncement is a helper function which is used to sign any outgoing
// channel node node announcement messages.
func SignAnnouncement(signer *lnwallet.MessageSigner,
func SignAnnouncement(signer lnwallet.MessageSigner, pubKey *btcec.PublicKey,
msg lnwire.Message) (*btcec.Signature, error) {
var (
@ -132,5 +132,5 @@ func SignAnnouncement(signer *lnwallet.MessageSigner,
return nil, errors.Errorf("unable to get data to sign: %v", err)
}
return signer.SignData(data)
return signer.SignMessage(pubKey, data)
}