func (p *Peer) handleHello(m *Manager, hello *protocol.Hello) {
cookie, err := p.getSessionCookie()
if err != nil {
glog.Errorf("%s:Bad cookie: %s", p.String(), err.Error())
p.UpdateStatus(HelloFailed)
return
}
pubKey, err := crypto.ParsePublicKeyFromHash(hello.GetNodePublic())
if err != nil {
glog.Errorf("Bad public key: %X", hello.GetNodePublic())
p.UpdateStatus(HelloFailed)
return
}
ok, err := crypto.Verify(pubKey.SerializeUncompressed(), hello.GetNodeProof(), cookie)
if !ok {
glog.Errorf("%s:Bad signature: %X public key: %X hash: %X", p.String(), hello.GetNodeProof(), hello.GetNodePublic(), cookie)
p.UpdateStatus(HelloFailed)
return
}
if err != nil {
glog.Errorf("%s:Bad signature verification: %s", p.String(), err.Error())
p.UpdateStatus(HelloFailed)
return
}
proof, err := m.Key.Sign(cookie)
if err != nil {
glog.Errorf("%s:Bad signature creation: %X", p.String(), cookie)
p.UpdateStatus(HelloFailed)
return
}
if err := p.ProcessHello(hello); err != nil {
glog.Errorf("%s:%s", p.String(), err.Error())
return
}
port, _ := strconv.ParseUint(m.Port, 10, 32)
p.Outgoing <- &protocol.TMHello{
FullVersion: proto.String(m.Name),
ProtoVersion: proto.Uint32(uint32(maxVersion)),
ProtoVersionMin: proto.Uint32(uint32(minVersion)),
NodePublic: []byte(m.PublicKey.String()),
NodeProof: proof,
Ipv4Port: proto.Uint32(uint32(port)),
NetTime: proto.Uint64(uint64(data.Now().Uint32())),
NodePrivate: proto.Bool(true),
TestNet: proto.Bool(false),
}
if hello.ProofOfWork != nil {
go p.handleProofOfWork(hello.ProofOfWork)
}
}
func (m *TMHello) Extend() (ExtendedMessage, error) {
key, err := crypto.ParsePublicKeyFromHash(m.NodePublic)
if err != nil {
return nil, err
}
sig, err := crypto.ParseSignature(m.NodeProof)
if err != nil {
return nil, err
}
return &Hello{
TMHello: m,
Version: fmt.Sprintf("%d.%d", m.GetProtoVersion()>>16, m.GetProtoVersion()&0xFFFF),
MinVersion: fmt.Sprintf("%d.%d", m.GetProtoVersionMin()>>16, m.GetProtoVersionMin()&0xFFFF),
PublicKey: key,
Signature: sig,
}, nil
}