Added types to EIP712 output in cliui

This commit is contained in:
Paul Berg 2018-11-14 14:16:23 +02:00
parent 9855fdeec8
commit 3965acc13a
2 changed files with 41 additions and 19 deletions

View file

@ -19,7 +19,6 @@ package core
import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
"math/big"
@ -75,6 +74,7 @@ type TypedData struct {
PrimaryType string `json:"primaryType"`
Domain EIP712Domain `json:"domain"`
Message EIP712Data `json:"message"`
Output bytes.Buffer
}
type EIP712Type []map[string]string
@ -273,16 +273,16 @@ func (api *SignerAPI) SignTypedData(ctx context.Context, addr common.MixedcaseAd
if err != nil {
return nil, err
}
typedData.Output.Reset()
typedData.Output.WriteString(fmt.Sprintf("%s {\n", typedData.PrimaryType))
typedDataHash, err := typedData.HashStruct(typedData.PrimaryType, typedData.Message)
if err != nil {
return nil, err
}
msg, err := json.MarshalIndent(typedData.Message, "", " ")
if err != nil {
return nil, err
}
typedData.Output.Truncate(typedData.Output.Len() - 2)
typedData.Output.WriteString(fmt.Sprintf("\n}"))
sighash := crypto.Keccak256([]byte(fmt.Sprintf("\x19\x01%s%s", string(domainSeparator), string(typedDataHash))))
req := &SignDataRequest{ContentType: DataTyped.Mime, Rawdata: typedData, Message: string(msg), Hash: sighash}
req := &SignDataRequest{ContentType: DataTyped.Mime, Rawdata: typedData.Map(), Message: typedData.Output.String(), Hash: sighash}
signature, err := api.Sign(ctx, addr, req)
if err != nil {
api.UI.ShowError(err.Error())
@ -293,7 +293,7 @@ func (api *SignerAPI) SignTypedData(ctx context.Context, addr common.MixedcaseAd
// HashStruct generates a keccak256 hash of the encoding of the provided data
func (typedData *TypedData) HashStruct(primaryType string, data EIP712Data) (hexutil.Bytes, error) {
encodedData, err := typedData.EncodeData(primaryType, data)
encodedData, err := typedData.EncodeData(primaryType, data, 1)
if err != nil {
return nil, err
}
@ -364,7 +364,7 @@ func (typedData *TypedData) TypeHash(primaryType string) hexutil.Bytes {
// `enc(value₁) ‖ enc(value₂) ‖ … ‖ enc(valueₙ)`
//
// each encoded member is 32-byte long
func (typedData *TypedData) EncodeData(primaryType string, data map[string]interface{}) (hexutil.Bytes, error) {
func (typedData *TypedData) EncodeData(primaryType string, data map[string]interface{}, depth int) (hexutil.Bytes, error) {
encValues := []interface{}{}
// Verify extra data
@ -384,21 +384,24 @@ func (typedData *TypedData) EncodeData(primaryType string, data map[string]inter
if !ok {
return nil, dataMismatchError(encType, encValue)
}
parsedType := strings.Split(encType, "[")[0]
typedData.Output.WriteString(strings.Repeat("\u00a0", depth*2))
typedData.Output.WriteString(fmt.Sprintf("\"%s\": [ %s\n", field["name"], encType))
arrayBuffer := bytes.Buffer{}
parsedType := strings.Split(encType, "[")[0]
for _, item := range arrayValue {
if typedData.Types[parsedType] != nil {
mapValue, ok := item.(map[string]interface{})
if !ok {
return nil, dataMismatchError(parsedType, item)
}
encodedData, err := typedData.EncodeData(parsedType, mapValue)
encodedData, err := typedData.EncodeData(parsedType, mapValue, depth+1)
if err != nil {
return nil, err
}
arrayBuffer.Write(encodedData)
} else {
encValue, err := handlePrimitiveValue(encType, encValue)
encValue, err := typedData.HandlePrimitiveValue(encType, encValue, depth)
if err != nil {
return nil, err
}
@ -409,20 +412,29 @@ func (typedData *TypedData) EncodeData(primaryType string, data map[string]inter
arrayBuffer.Write(bytesValue)
}
}
typedData.Output.Truncate(typedData.Output.Len() - 2)
typedData.Output.WriteString(fmt.Sprintf("\n%s],\n", strings.Repeat("\u00a0", depth*2)))
encValues = append(encValues, crypto.Keccak256(arrayBuffer.Bytes()))
} else if typedData.Types[field["type"]] != nil {
mapValue, ok := encValue.(map[string]interface{})
if !ok {
return nil, dataMismatchError(encType, encValue)
}
encodedData, err := typedData.EncodeData(field["type"], mapValue)
typedData.Output.WriteString(strings.Repeat("\u00a0", depth*2))
typedData.Output.WriteString(fmt.Sprintf("\"%s\": { %s\n", field["name"], encType))
encodedData, err := typedData.EncodeData(field["type"], mapValue, depth+1)
if err != nil {
return nil, err
}
typedData.Output.Truncate(typedData.Output.Len() - 2)
typedData.Output.WriteString(fmt.Sprintf("\n%s},\n", strings.Repeat("\u00a0", depth*2)))
encValue = crypto.Keccak256(encodedData)
encValues = append(encValues, encValue)
} else {
primitiveEncValue, err := handlePrimitiveValue(encType, encValue)
primitiveEncValue, err := typedData.HandlePrimitiveValue(encType, encValue, depth)
if err != nil {
return nil, err
}
@ -444,9 +456,11 @@ func (typedData *TypedData) EncodeData(primaryType string, data map[string]inter
// handlePrimitiveValues deals with the primitive values found
// while searching through the typed data
func handlePrimitiveValue(encType string, encValue interface{}) (interface{}, error) {
func (typedData *TypedData) HandlePrimitiveValue(encType string, encValue interface{}, depth int) (interface{}, error) {
var primitiveEncValue interface{}
typedData.Output.WriteString(strings.Repeat("\u00a0", depth*2))
typedData.Output.WriteString(fmt.Sprintf("\"%s\": ", encType))
switch encType {
case "address":
bytesValue := hexutil.Bytes{}
@ -457,10 +471,12 @@ func handlePrimitiveValue(encType string, encValue interface{}) (interface{}, er
if !ok || !common.IsHexAddress(stringValue) {
return nil, dataMismatchError(encType, encValue)
}
for _, _byte := range common.HexToAddress(stringValue) {
addressValue := common.HexToAddress(stringValue)
for _, _byte := range addressValue {
bytesValue = append(bytesValue, _byte)
}
primitiveEncValue = bytesValue
typedData.Output.WriteString(fmt.Sprintf("%s,\n", addressValue.String()))
case "bool":
var int64Val int64
boolValue, ok := encValue.(bool)
@ -471,12 +487,14 @@ func handlePrimitiveValue(encType string, encValue interface{}) (interface{}, er
int64Val = 1
}
primitiveEncValue = abi.U256(big.NewInt(int64Val))
typedData.Output.WriteString(fmt.Sprintf("%t,\n", boolValue))
case "bytes", "string":
bytesValue, err := bytesValueOf(encValue)
if err != nil {
return nil, dataMismatchError(encType, encValue)
}
primitiveEncValue = crypto.Keccak256(bytesValue)
typedData.Output.WriteString(fmt.Sprintf("\"%s\",\n", encValue))
default:
if strings.HasPrefix(encType, "bytes") {
sizeStr := strings.TrimPrefix(encType, "bytes")
@ -490,12 +508,16 @@ func handlePrimitiveValue(encType string, encValue interface{}) (interface{}, er
}
bytesValue = append(bytesValue, encValue.(hexutil.Bytes)...)
primitiveEncValue = bytesValue
typedData.Output.WriteString(fmt.Sprintf("\"%s\",\n", encValue))
} else if strings.HasPrefix(encType, "uint") || strings.HasPrefix(encType, "int") {
bigIntValue, ok := encValue.(*big.Int)
if !ok {
return nil, dataMismatchError(encType, encValue)
}
primitiveEncValue = abi.U256(bigIntValue)
typedData.Output.WriteString(fmt.Sprintf("%d,\n", bigIntValue))
} else {
return nil, fmt.Errorf("unrecognized type '%s'", encType)
}
}
return primitiveEncValue, nil
@ -525,7 +547,7 @@ func bytesValueOf(_interface interface{}) (hexutil.Bytes, error) {
break
}
return nil, fmt.Errorf("unrecognized interface type %T", _interface)
return nil, fmt.Errorf("unrecognized type '%T'", _interface)
}
// EcRecover recovers the address associated with the given sig.

View file

@ -193,7 +193,7 @@ func TestTypeHash(t *testing.T) {
}
func TestEncodeData(t *testing.T) {
hash, err := typedData.EncodeData(typedData.PrimaryType, typedData.Message)
hash, err := typedData.EncodeData(typedData.PrimaryType, typedData.Message, 0)
if err != nil {
t.Fatal(err)
}
@ -395,8 +395,8 @@ func TestMalformedData2(t *testing.T) {
t.Fatalf("Expected `referenced type 'Blahonga' is undefined`, got %v", err)
}
_, err = malformedTypedData.HashStruct(malformedTypedData.PrimaryType, malformedTypedData.Message)
if err == nil || err.Error() != "unrecognized interface type <nil>" {
t.Errorf("Expected `unrecognized interface type <nil>`, got %v", err)
if err == nil || err.Error() != "unrecognized type 'Blahonga'" {
t.Errorf("Expected `unrecognized type 'Blahonga'`, got %v", err)
}
}