Transfer Coins

.vscode/launch.json

@@ -0,0 +1,17 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Launch",
+            "type": "go",
+            "request": "launch",
+            "mode": "auto",
+            "program": "${fileDirname}",
+            "env": {},
+            "args": []
+        }
+    ]
+}

go.mod

@@ -3,6 +3,7 @@ module github.com/codemaveric/libra-go
 go 1.12
 
 require (
+	github.com/gogo/protobuf v1.2.1
 	github.com/golang/protobuf v1.3.1
 	github.com/tyler-smith/go-bip39 v1.0.0
 	golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2

go.sum

@@ -1,13 +1,17 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/gogo/protobuf v1.2.1 h1:/s5zKNz0uPFCZ5hddgPdo2TK2TVrUNMn0OOX8/aZMTE=
+github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.1 h1:YF8+flBXS5eO826T4nzqPrxfhQThhXl0YzfuUPu4SBg=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
+github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvWXihfKN4Q=
+github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/tyler-smith/go-bip39 v1.0.0 h1:FOHg9gaQLeBBRbHE/QrTLfEiBHy5pQ/yXzf9JG5pYFM=
 github.com/tyler-smith/go-bip39 v1.0.0/go.mod h1:sJ5fKU0s6JVwZjjcUEX2zFOnvq0ASQ2K9Zr6cf67kNs=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 h1:VklqNMn3ovrHsnt90PveolxSbWFaJdECFbxSq0Mqo2M=
@@ -20,6 +24,7 @@ golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8 h1:Nw54tB0rB7hY/N0NQvRW8DG4Yk3Q6T9cu9RcFQDu1tc=

pkg/crypto/hash.go

@@ -2,6 +2,7 @@ package crypto
 
 import (
 	"hash"
+	"log"
 
 	"golang.org/x/crypto/sha3"
 )
@@ -36,6 +37,7 @@ func NewCryptoHasher(salt []byte) *CryptoHasher {
 		hashSuf := []byte(LIBRA_HASH_SUFFIX)
 		salt = append(salt, hashSuf...)
 		hash := from_sha3(salt).hash
+		log.Println(hash)
 		state.Write(hash[:])
 	}
 

pkg/goclient/libraclient.go

@@ -56,8 +56,10 @@ func (l *LibraClient) TransferCoins(sender *librawallet.Account, receipientAddre
 	if err != nil {
 		return err
 	}
+	acStatus := res.GetAcStatus()
+
 	// If status is not Accepted return error else increase the sequence number of the sender
-	if acStatus := res.GetAcStatus(); acStatus != gowrapper.AdmissionControlStatus_Accepted {
+	if acStatus != gowrapper.AdmissionControlStatus_Accepted {
 		return errors.New(fmt.Sprintf("Transaction failed with status: %s", gowrapper.AdmissionControlStatus_name[int32(acStatus)]))
 	}
 	sender.Sequence += 1

pkg/goclient/transaction.go

@@ -3,16 +3,16 @@ package goclient
 import (
 	"encoding/binary"
 	"encoding/hex"
-	"encoding/json"
 
 	"github.com/codemaveric/libra-go/gowrapper"
 	"github.com/codemaveric/libra-go/pkg/crypto"
 	"github.com/codemaveric/libra-go/pkg/librawallet"
+	"github.com/golang/protobuf/proto"
 )
 
 const GAS_UNIT_PRICE uint64 = 0
 const MAX_GAS_AMOUNT uint64 = 10000
-const TX_EXPIRATION uint64 = 100
+const TX_EXPIRATION int64 = 100
 
 // Const of transaction program
 const HEX_PEER_TO_PEER_TRANSFER_CODE = "4c49425241564d0a010007014a00000004000000034e000000060000000c54000000050000000d5900000004000000055d0000002900000004860000002000000007a60000000d00000000000001000200010300020002040203020402063c53454c463e0c4c696272614163636f756e74046d61696e0f7061795f66726f6d5f73656e64657200000000000000000000000000000000000000000000000000000000000000000001020004000c000c01110102"
@@ -37,14 +37,15 @@ func encodeTransferProgram(receiverAddress string, numCoins uint64) (*gowrapper.
 
 func createSubmitTransactionReq(program *gowrapper.Program, sender *librawallet.Account, gasUnitPrice, maxGasAmount uint64) (*gowrapper.SubmitTransactionRequest, error) {
 	raw_txn := &gowrapper.RawTransaction{
-		SequenceNumber: sender.Sequence,
+		SequenceNumber: 5,
 		SenderAccount:  sender.Address,
 		MaxGasAmount:   maxGasAmount,
 		GasUnitPrice:   gasUnitPrice,
 		Payload:        &gowrapper.RawTransaction_Program{program},
 		ExpirationTime: 0,
 	}
-	txn_bytes, err := json.Marshal(&raw_txn)
+	proto.Marshal(raw_txn)
+	txn_bytes, err := proto.Marshal(raw_txn)
 	if err != nil {
 		return nil, err
 	}

pkg/librawallet/account.go

@@ -12,14 +12,14 @@ type Account struct {
 	Sequence uint64
 }
 
-func GenerateKeyPair(mnemonic Mnemonic) *crypto.KeyPair {
+func GenerateKeyPair(mnemonic Mnemonic, childNum uint64) *crypto.KeyPair {
 	seed := NewSeed(mnemonic, "")
 	keyfactory := NewKeyFactory(seed)
-	priveKey := keyfactory.GenerateKey(0)
+	priveKey := keyfactory.GenerateKey(childNum)
 	return crypto.NewKeyPair(priveKey.PrivateKey)
 }
 
-func AccountFromSecret(keyPair *crypto.KeyPair) *Account {
+func NewAccountFromKeyPair(keyPair *crypto.KeyPair) *Account {
 	digest := sha3.Sum256(keyPair.PublicKey.Value)
 	address := digest[:]
 	return &Account{Address: address, KeyPair: keyPair}

pkg/librawallet/mnemonic.go

@@ -8,7 +8,7 @@ import (
 
 type Mnemonic []string
 
-func generateMnemonic() Mnemonic {
+func GenerateMnemonic() Mnemonic {
 	entropy, _ := bip39.NewEntropy(256)
 	mnemonic, _ := bip39.NewMnemonic(entropy)
 	return strings.Split(mnemonic, " ")

pkg/librawallet/walletlibrary.go

@@ -17,7 +17,7 @@ type WalletLibrary struct {
 func NewWalletLibrary(mnemonicStr string) *WalletLibrary {
 	var mnemonic Mnemonic
 	if mnemonicStr == "" {
-		mnemonic = generateMnemonic()
+		mnemonic = GenerateMnemonic()
 	} else {
 		mnemonic = strings.Split(mnemonicStr, " ")
 	}