Arch refactor alpha (Hyperledger-TWGC#190)

* add crpto interface as repare for Hyperledger-TWGC#127

Signed-off-by: Sam Yuan <yy19902439@126.com>

* adding Worker interface for Hyperledger-TWGC#56 and decouple Assembler and Integrator

Signed-off-by: Sam Yuan <yy19902439@126.com>

* refactor for worker interface

Signed-off-by: Sam Yuan <yy19902439@126.com>

* package structure

Signed-off-by: Sam Yuan <yy19902439@126.com>

* fix up

Signed-off-by: Sam Yuan <yy19902439@126.com>

* package refactor

Signed-off-by: Sam Yuan <yy19902439@126.com>

* fix up

Signed-off-by: Sam Yuan <yy19902439@126.com>

* fix up

Signed-off-by: Sam Yuan <yy19902439@126.com>

* remove Envelope from elements

Signed-off-by: Sam Yuan <yy19902439@126.com>

* add memeory free

Signed-off-by: Sam Yuan <yy19902439@126.com>

* remove Proposal from Elements

Signed-off-by: Sam Yuan <yy19902439@126.com>

* fix up

Signed-off-by: Sam Yuan <yy19902439@126.com>

* move start time to ctx

Signed-off-by: Sam Yuan <yy19902439@126.com>

cmd/tape/main.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"os"
 
-	"tape/pkg/infra"
+	"tape/pkg/infra/cmdImpl"
 
 	"github.com/pkg/errors"
 	log "github.com/sirupsen/logrus"
@@ -40,10 +40,10 @@ func main() {
 	fullCmd := kingpin.MustParse(app.Parse(os.Args[1:]))
 	switch fullCmd {
 	case version.FullCommand():
-		fmt.Printf(infra.GetVersionInfo())
+		fmt.Printf(cmdImpl.GetVersionInfo())
 	case run.FullCommand():
 		checkArgs(rate, burst, logger)
-		err = infra.Process(*con, *num, *burst, *rate, logger)
+		err = cmdImpl.Process(*con, *num, *burst, *rate, logger)
 	default:
 		err = errors.Errorf("invalid command: %s", fullCmd)
 	}

pkg/infra/basic/basic_suite_test.go

@@ -0,0 +1,13 @@
+package basic_test
+
+import (
+	"testing"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+func TestBasic(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "Basic Suite")
+}

pkg/infra/client.go → pkg/infra/basic/client.go

@@ -1,4 +1,4 @@
-package infra
+package basic
 
 import (
 	"context"

pkg/infra/client_test.go → pkg/infra/basic/client_test.go

@@ -1,8 +1,8 @@
-package infra_test
+package basic_test
 
 import (
 	"context"
-	"tape/pkg/infra"
+	"tape/pkg/infra/basic"
 
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
@@ -12,21 +12,21 @@ import (
 var _ = Describe("Client", func() {
 
 	Context("Client Error handling", func() {
-		dummy := infra.Node{
+		dummy := basic.Node{
 			Addr: "invalid_addr",
 		}
 		logger := log.New()
 
 		It("captures error from endorser", func() {
-			_, err := infra.CreateEndorserClient(dummy, logger)
+			_, err := basic.CreateEndorserClient(dummy, logger)
 			Expect(err).Should(MatchError(ContainSubstring("error connecting to invalid_addr")))
 		})
 		It("captures error from broadcaster", func() {
-			_, err := infra.CreateBroadcastClient(context.Background(), dummy, logger)
+			_, err := basic.CreateBroadcastClient(context.Background(), dummy, logger)
 			Expect(err).Should(MatchError(ContainSubstring("error connecting to invalid_addr")))
 		})
 		It("captures error from DeliverFilter", func() {
-			_, err := infra.CreateDeliverFilteredClient(context.Background(), dummy, logger)
+			_, err := basic.CreateDeliverFilteredClient(context.Background(), dummy, logger)
 			Expect(err).Should(MatchError(ContainSubstring("error connecting to invalid_addr")))
 		})
 	})

pkg/infra/config.go → pkg/infra/basic/config.go

@@ -1,14 +1,26 @@
-package infra
+package basic
 
 import (
+	"crypto/ecdsa"
+	"crypto/x509"
+	"encoding/pem"
 	"io/ioutil"
+	"sync"
+	"tape/internal/fabric/bccsp/utils"
 
 	"github.com/gogo/protobuf/proto"
 	"github.com/hyperledger/fabric-protos-go/msp"
+	"github.com/hyperledger/fabric-protos-go/peer"
 	"github.com/pkg/errors"
 	"gopkg.in/yaml.v2"
 )
 
+type Elements struct {
+	SignedProp *peer.SignedProposal
+	Responses  []*peer.ProposalResponse
+	Lock       sync.Mutex
+}
+
 type Config struct {
 	Endorsers       []Node   `yaml:"endorsers"`
 	Committers      []Node   `yaml:"committers"`
@@ -65,7 +77,7 @@ func LoadConfig(f string) (Config, error) {
 	return config, nil
 }
 
-func (c Config) LoadCrypto() (*Crypto, error) {
+func (c Config) LoadCrypto() (*CryptoImpl, error) {
 	var allcerts []string
 	for _, p := range c.Endorsers {
 		allcerts = append(allcerts, p.TLSCACert)
@@ -98,7 +110,7 @@ func (c Config) LoadCrypto() (*Crypto, error) {
 		return nil, errors.Wrapf(err, "error get msp id")
 	}
 
-	return &Crypto{
+	return &CryptoImpl{
 		Creator:  name,
 		PrivKey:  priv,
 		SignCert: cert,
@@ -136,3 +148,34 @@ func (n *Node) loadConfig() error {
 	n.TLSCARootByte = TLSCARoot
 	return nil
 }
+
+func GetPrivateKey(f string) (*ecdsa.PrivateKey, error) {
+	in, err := ioutil.ReadFile(f)
+	if err != nil {
+		return nil, err
+	}
+
+	k, err := utils.PEMtoPrivateKey(in, []byte{})
+	if err != nil {
+		return nil, err
+	}
+
+	key, ok := k.(*ecdsa.PrivateKey)
+	if !ok {
+		return nil, errors.Errorf("expecting ecdsa key")
+	}
+
+	return key, nil
+}
+
+func GetCertificate(f string) (*x509.Certificate, []byte, error) {
+	in, err := ioutil.ReadFile(f)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	block, _ := pem.Decode(in)
+
+	c, err := x509.ParseCertificate(block.Bytes)
+	return c, in, err
+}

pkg/infra/config_test.go → pkg/infra/basic/config_test.go

@@ -1,11 +1,11 @@
-package infra_test
+package basic_test
 
 import (
 	"io/ioutil"
 	"os"
 	"text/template"
 
-	"tape/pkg/infra"
+	"tape/pkg/infra/basic"
 
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
@@ -75,16 +75,16 @@ var _ = Describe("Config", func() {
 
 			generateConfigFile(f.Name(), struct{ TlsFile string }{tlsFile.Name()})
 
-			c, err := infra.LoadConfig(f.Name())
+			c, err := basic.LoadConfig(f.Name())
 			Expect(err).NotTo(HaveOccurred())
-			Expect(c).To(Equal(infra.Config{
-				Endorsers: []infra.Node{
+			Expect(c).To(Equal(basic.Config{
+				Endorsers: []basic.Node{
 					{Addr: "peer0.org1.example.com:7051", TLSCACert: tlsFile.Name(), TLSCACertByte: []byte("a")},
 					{Addr: "peer0.org2.example.com:7051", TLSCACert: tlsFile.Name(), TLSCACertByte: []byte("a")},
 				},
-				Committers:      []infra.Node{{Addr: "peer0.org2.example.com:7051", TLSCACert: tlsFile.Name(), TLSCACertByte: []byte("a")}},
+				Committers:      []basic.Node{{Addr: "peer0.org2.example.com:7051", TLSCACert: tlsFile.Name(), TLSCACertByte: []byte("a")}},
 				CommitThreshold: 1,
-				Orderer:         infra.Node{Addr: "orderer.example.com:7050", TLSCACert: tlsFile.Name(), TLSCACertByte: []byte("a")},
+				Orderer:         basic.Node{Addr: "orderer.example.com:7050", TLSCACert: tlsFile.Name(), TLSCACertByte: []byte("a")},
 				Channel:         "mychannel",
 				Chaincode:       "mycc",
 				Version:         "",
@@ -102,7 +102,7 @@ var _ = Describe("Config", func() {
 
 	Context("bad", func() {
 		It("fails to load missing config file", func() {
-			_, err := infra.LoadConfig("invalid_file")
+			_, err := basic.LoadConfig("invalid_file")
 			Expect(err).Should(MatchError(ContainSubstring("invalid_file")))
 		})
 
@@ -113,7 +113,7 @@ var _ = Describe("Config", func() {
 
 			generateConfigFile(f.Name(), struct{ TlsFile string }{"invalid_file"})
 
-			_, err := infra.LoadConfig(f.Name())
+			_, err := basic.LoadConfig(f.Name())
 			Expect(err).Should(MatchError(ContainSubstring("invalid_file")))
 		})
 	})

pkg/infra/basic/crypto.go

@@ -0,0 +1,72 @@
+package basic
+
+import (
+	"crypto/ecdsa"
+	"crypto/rand"
+	"crypto/sha256"
+	"crypto/x509"
+	"encoding/asn1"
+	"math/big"
+
+	"tape/internal/fabric/bccsp/utils"
+	"tape/internal/fabric/common/crypto"
+
+	"github.com/hyperledger/fabric-protos-go/common"
+)
+
+type CryptoConfig struct {
+	MSPID      string
+	PrivKey    string
+	SignCert   string
+	TLSCACerts []string
+}
+
+type ECDSASignature struct {
+	R, S *big.Int
+}
+
+type CryptoImpl struct {
+	Creator  []byte
+	PrivKey  *ecdsa.PrivateKey
+	SignCert *x509.Certificate
+}
+
+func (s *CryptoImpl) Sign(message []byte) ([]byte, error) {
+	ri, si, err := ecdsa.Sign(rand.Reader, s.PrivKey, digest(message))
+	if err != nil {
+		return nil, err
+	}
+
+	si, _, err = utils.ToLowS(&s.PrivKey.PublicKey, si)
+	if err != nil {
+		return nil, err
+	}
+
+	return asn1.Marshal(ECDSASignature{ri, si})
+}
+
+func (s *CryptoImpl) Serialize() ([]byte, error) {
+	return s.Creator, nil
+}
+
+func (s *CryptoImpl) NewSignatureHeader() (*common.SignatureHeader, error) {
+	creator, err := s.Serialize()
+	if err != nil {
+		return nil, err
+	}
+	nonce, err := crypto.GetRandomNonce()
+	if err != nil {
+		return nil, err
+	}
+
+	return &common.SignatureHeader{
+		Creator: creator,
+		Nonce:   nonce,
+	}, nil
+}
+
+func digest(in []byte) []byte {
+	h := sha256.New()
+	h.Write(in)
+	return h.Sum(nil)
+}